Star hoppers: Students chart the sky, bring space up close at observatory open houses   

Astrophysics grad Lindsey Rodgers and senior Justin Bryan trace paths in the sky to locate star clusters and more at UMSL's Richard D. Schwartz Observatory.

The post Star hoppers: Students chart the sky, bring space up close at observatory open houses appeared first on UMSL Daily.


          Neutron stars could be our GPS for deep space travel   
NASA's Neutron Star Interior Composition Explorer, or NICER will study the exotic astrophysical objects known as neutron stars and examine whether they could be used as deep-space navigation beacons for future generations of spacecraft.
          Episode 59.0: "It's An Implied Moustache"   
0:00 We say hello 3:20 This is how you get a hold of us, and there are many ways, indeed. 5:08 Emails! Trade deadline scouting, Ranking philosophies, a sub-.500 Yankees team 40:35 Do teams over-value their prospects come trade deadline? 54:30 Pirates: Go for it or stick to the plan? 59:52 Predictions: Who goes where 1:12:47 Trade Deadline Special Guest: Buster Olney of ESPN 1:34:56 Debt Crisis Special: Official news correspondent Lincoln Mitchell with a primer 1:52:58 Listener Of The Week: Astrophysicist Dr. Million with a call to action 2:23:34 Musical Guest: Martha's Vinyard Ferries 2:25:02 What Are You Drinking? (We're fixing this!) 2:27:04 Newberg Night Wrap-Up 2:36:29 The Week Ahead
          What's New in Science Reference: Exploring the Extreme Universe, New Science Webcast   

NASA Goddard astrophysicst Dr. Julie McEnery spoke on exploring the extreme universe with the Fermi Gamma-ray Space Telescope.

Click here to view the webcast.


          The “Space Hamburger” Is Rich In Complex Organic Molecules   

An international group of astronomers studying the “Space Hamburger” – an accretion disk surrounding a baby star – has detected copious complex organic molecules inside it. These molecules are an important component to forming life molecules and this research shows that they form at the very beginning of a star system. The study, published in the Astrophysical Journal,...

The post The “Space Hamburger” Is Rich In Complex Organic Molecules appeared first on Breaking News, Sports, Entertainment.


          Astrophysics for People in a Hurry   
Astrophysics for People in a Hurry
          Vous êtes ici : super-continent de galaxies Laniakea et le Grand Attracteur   

Apprenez à découvrir notre nouvelle adresse cosmique : Laniakea et ce qui s'y passe en son sein avec le Grand Attracteur qui attire actuellement à lui, tout ce qui est contenu dans l'espace de Laniakea, soit des milliards de galaxies dont la nôtre et phénomène cosmique qui doit transformer la matière en profondeur et y compris à activer notre ADN sous l'influence des puissantes énergies que nous traversons au cours de notre ascension.

Des scientifiques ont découvert que la Terre recevait des quantités énormes d'énergies et des particules d'antimatière, dont les positons ou positrons, ce dont ils s'étonnent, n'en comprenant pas l'origine et les qualifiant d'anomalies !

Il ne s'agit pas d'anomalies mais d'une réaction électrique qui engendre la libération d'énergie ou de Lumière Cosmique !

 

Article précédent :

* - Vidéo : Oubliez le Réchauffement climatique. Ascension et déménagement de la Galaxie vers le Grand Attracteur de Laniakea !

 

Notre nouvelle adresse cosmique

Nouvelle image.jpg


 

Vous êtes ici : super-continent de galaxies Laniakea

  Une tranche du Superamas Laniakea dans le plan équatorial supergalactique © Cosmic Flows

Avec une équipe internationale, l’astrophysicienne-cosmographe Hélène Courtois a découvert le super continent de galaxies dans lequel nous vivons: Laniakea.

Parmi les nombreux obstacles qu’ont rencontrés Christophe Colomb et les explorateurs de l’Amérique, dessiner des cartes précises ne fut pas le plus facile à contourner. A l’époque des grands navigateurs (XVe et XVIe siècles), la cartographie s’appuyait sur l’exploration : longer les côtes pour dessiner les contours du continent, suivre les cours d’eau pour représenter les terres.

Quelques centaines d’années plus tard, c’est avec une méthode finalement assez proche que la cosmographe Hélène Courtois, de l’Institut national de physique nucléaire et de physique des particules (Université Claude Bernard Lyon 1 / CNRS), et trois confrères d’universités internationales* ont cartographié une vaste zone de notre univers observable. Mais leurs cartes à eux sont en quatre dimensions, et cette quatrième dimension vient bouleverser notre représentation de l’Univers.

Une nouvelle image de l’Univers

Dans l’Univers tel que le font apparaître les travaux d’Hélène Courtois et ses confrères, des bateaux (les galaxies) suivent les courants d’une rivière (la matière). Les galaxies sont regroupées en amas ou en superamas et se déplacent en évitant de grandes régions appelées “vides”. Leurs déplacements, provoqués par les concentrations de matière visible ou invisible, les amènent à se séparer ou se rassembler comme en suivant l’eau de la rivière de part et d’autre d’une ligne de partage.

L’équipe internationale assemblée par Hélène Courtois (une vingtaine de chercheurs en plus des quatre co-auteurs de l’article) ont créé des cartes de l’Univers dont le “champ de vitesse” des galaxies constitue la quatrième dimension. Plutôt que produire un instantané de leur position à un instant donné, les cartes montrent la dynamique de leurs déplacements :

Leur mouvement nous fournit de précieuses indications de cosmologie, par exemple sur la localisation de la matière noire : les mouvements dépendent de sa masse, or nous savons que la matière noire est la masse la plus importante dans l’Univers. Ils nous permettent aussi de mieux comprendre les lois fondamentales de l’univers comme la gravitation.

Nos horizons célestes

Les scientifiques ont connecté patiemment la surface joignant toutes les lignes de partage des flux de galaxies qui nous entourent. Notre continent de galaxies, le superamas dans lequel nous vivons, apparaît en creux : c’est le volume englobé, qui se sépare nettement des autres continents voisins. Notre « continent » mesure 500 millions d’années-lumière de diamètre et contient une masse d’environ 100 millions de milliards de fois celle du Soleil. Les chercheurs lui ont donné le nom hawaiien Laniakea, qui signifie “horizons célestes immenses”. Accepté par l’Union Astronomique Internationale, c’est un hommage à ce pays de navigateurs aux étoiles qui abrite désormais quelques-uns des plus grands télescopes du monde, utilisés pour cette découverte et celles qui suivront.

Une tranche du Superamas Laniakea dans le plan équatorial supergalactique. Les nuances de couleur représentent des valeurs de densité de matière avec en rouge la haute densité et en bleu les vides. Les galaxies individuelles sont montrées comme des points blancs. On observe en blanc des courants de galaxies se déversant dans le bassin d’attraction du Laniakea, tandis que des courants en bleu foncé s’éloignent de ce bassin local et permettent de séparer notre continent de ceux voisins. Le contour orange inclut les limites extérieures de ces courants. Ce domaine a une mesure de 500 Millions d’années lumière de diamètre et inclut ~1017 M⊙ (100 millions de millards de masses solaires). © Cosmic Flows

Regarder à travers plusieurs lunettes

Pour arriver à ces résultats, Hélène Courtois et ses partenaires ont mis au point une nouvelle méthode pour définir les structures à grande échelle à l’aide des courants de galaxies. Ces calculs sont basés sur les observations conduites par Hélène Courtois et les méthodes de visualisation de Daniel Pomarède, chercheur à l’Institut de Recherche sur les Lois Fondamentales de l’Univers, CEA/Saclay.

Ils ont concentré leurs observations sur un cube de 1,5 milliards d’années-lumière de côté, soit environ 2% de l’Univers observable. Ils ont réussi le tour de force de cartographier intégralement 8 000 des galaxies présentes dans cette zone avec une précision de 10-15% : On mesure des vitesses de l’ordre de 1000 à 15000 kilomètres par seconde. Puis nous enlevons de cette mesure la part due à l’expansion de l’Univers : on parle de coordonnées co-mobiles. Il ne reste plus que la vitesse due uniquement à la masse de la galaxie et la gravité environnante, elle de l’ordre de 400 à 600 kilomètres par seconde ”, précise Hélène Courtois. Pour arriver à une précision aussi fine, il est indispensable de croiser les résultats obtenus par plusieurs techniques d’observation : analyse des supernovae et des “raies d’hydrogène neutre”, par exemple (voir encadré).

Hydrogène neutre : Cette méthode a été co-inventée en 1977 par R. Brent Tully, qui signe l’article avec Hélène Courtois. Elle consiste à observer les traînées d’hydrogène neutre (H pur) des galaxies à l’aide de radiotélescopes : les photons qu’elles émettent sont toujours à 21 cm de longueur d’onde. En vertu de l’effet Dop

          Journée mondiale des astéroïdes : que peuvent-ils nous révéler ?   
Pour la Journée internationale des astéroïdes, l’astrophysicien Francis Rocard parle de ces corps célestes qui nous intriguent, nous attirent et parfois nous inquiètent. Des centaines de milliers d’astéroïdes qui sont autant de mines d’informations sur la naissance des planètes et aussi, pour...
          Hubble découvre une galaxie morte trop tôt et qui défie l'astrophysique   
Les galaxies en forme de disque sont connues pour être des lieux de formation d'étoiles au contraire des galaxies elliptiques dominées par une population d’étoiles âgées et dont les réserves de gaz sont épuisées. Pourtant, au grand étonnement des astronomes, une jeune galaxie en forme de disque...
          Neil deGrasse Tyson: How He Became America's Top Astrophysicist   
I spoke to Neil deGrasse Tyson, an astrophysicist, about what got him interested in astrophysics, some of his biggest childhood influences, how we can apply the laws of physics to everyday life, why America may never recover and his best career advice.
          3 Social Media Marketing TED Talks That Every Entrepreneur Should See   

Each year, the annual TED (Technology, Entertainment, Design) conference gives us more amazing and thought-provoking discussions from experts in a vast array of different fields. From astrophysics, to evolutionary biology, to content marketing, many of the world’s top minds have presented at least one TED talk at some point. You can watch TED talks online, and […]

The post 3 Social Media Marketing TED Talks That Every Entrepreneur Should See appeared first on Job Crusher.


          Australian astronomers launch public search for mysterious 'Planet 9'   

New Delhi: Australian astronomers have announced a public search of the southern skies for a large planet believed to be hiding in the outer reaches of the Solar System.

The researchers at Australian National University (ANU) called on amateur astronomers to help them make the historic discovery of the so called 'Planet 9'.

The project to find 'Planet 9' is led by ANU astrophysicist Dr Brad Tucker, and will require the help of passionate stargazers who could be the first to set eyes on something no human has seen before, Xinhua news agency reported.

 

Under the project, citizen scientists will be allowed to browse hundreds of thousands of images taken by the ANU SkyMapper telescope at Siding Spring. Volunteers are invited to cast an eye over the photos and note any differences, oddities or potential 'Planet 9s'.

"We have the potential to find a new planet in our Solar System that no human has ever seen in our two-million-year history," Tucker said in a statement released on Monday.

"Planet 9 is predicted to be a super Earth, about 10 times the mass and up to four times the size of our planet. It's going to be cold and far away, and about 800 times the distance between Earth and the sun. It's pretty mysterious."

"It's actually not that complicated to find Planet 9. It really is spot the difference. Then you just click on the image, mark what is different and we'll take care of the rest," Tucker said.

"It will be through all our dedication that we can find Planet 9 and other things that move in space."

The ANU said it would release further details about the search for Planet 9 in coming weeks.

Tucker added that the search for Planet 9 would also help lead to the discovery of other mystery objects in space, including asteroids, comets and dwarf planets such as Pluto.

He said if anyone finds a unique mystery object, they will be able to name it - however not after themselves.

"If you find an asteroid or dwarf planet, you can't actually name it after yourself."

"But you could name it after your wife, brother or sister. We need to follow all of the rules set by the International Astronomical Union," Tucker added.

Anyone who helps find the so-called Planet 9 will work with ANU astronomers to validate the discovery through the International Astronomical Union.

(With IANS inputs)

Australian astronomers launch public search for mysterious 'Planet 9'
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          Astrophysics: Cosmic Microwave Background and Diffuse Galactic Emission   
Greenbelt, MD - background (CMB) and diffuse Galactic emission at decimeter through sub-millimeter wavelengths. PIPER is a balloon-borne instrument to measure the...
          Big pharma turns to artificial intelligence to speed drug discovery, GSK signs deal   

By Ben Hirschler

LONDON (Reuters) - The world's leading drug companies are turning to artificial intelligence to improve the hit-and-miss business of finding new medicines, with GlaxoSmithKline unveiling a new $43 million deal in the field on Sunday.

Other pharmaceutical giants including Merck & Co, Johnson & Johnson and Sanofi are also exploring the potential of artificial intelligence (AI) to help streamline the drug discovery process.

The aim is to harness modern supercomputers and machine learning systems to predict how molecules will behave and how likely they are to make a useful drug, thereby saving time and money on unnecessary tests.

AI systems already play a central role in other high-tech areas such as the development of driverless cars and facial recognition software.

"Many large pharma companies are starting to realise the potential of this approach and how it can help improve efficiencies," said Andrew Hopkins, chief executive of privately owned Exscientia, which announced the new tie-up with GSK.

Hopkins, who used to work at Pfizer, said Exscientia's AI system could deliver drug candidates in roughly one-quarter of the time and at one-quarter of the cost of traditional approaches.

The Scotland-based company, which also signed a deal with Sanofi in May, is one of a growing number of start-ups on both sides of the Atlantic that are applying AI to drug research. Others include U.S. firms Berg, Numerate, twoXAR and Atomwise, as well as Britain's BenevolentAI.

"In pharma's eyes these companies are essentially digital biotechs that they can strike partnerships with and which help feed the pipeline," said Nooman Haque, head of life sciences at Silicon Valley Bank in London.

"If this technology really proves itself, you may start to see M&A with pharma, and closer integration of these AI engines into pharma R&D."

STILL TO BE PROVEN

It is not the first time drugmakers have turned to high-tech solutions to boost R&D productivity.

The introduction of "high throughput screening", using robots to rapidly test millions of compounds, generated mountains of leads in the early 2000s but notably failed to solve inefficiencies in the research process.

When it comes to AI, big pharma is treading cautiously, in the knowledge that the technology has yet to demonstrate it can successfully bring a new molecule from computer screen to lab to clinic and finally to market.

"It's still to be proven, but we definitely think we should do the experiment," said John Baldoni, GSK's head of platform technology and science.

Baldoni is also ramping up in-house AI investment at the drugmaker by hiring some unexpected staff with appropriate computing and data handling experience - including astrophysicists.

His goal is to reduce the time it takes from identifying a target for disease intervention to finding a molecule that acts against it from an average 5.5 years today to just one year in future.

"That is a stretch. But as we've learnt more about what modern supercomputers can do, we've gained more confidence," Baldoni told Reuters. "We have an obligation to reduce the cost of drugs and reduce the time it takes to get medicines to patients."

Earlier this year GSK also entered a collaboration with the U.S. Department of Energy and National Cancer Institute to accelerate pre-clinical drug development through use of advanced computational technologies.

The new deal with Exscientia will allow GSK to search for drug candidates for up to 10 disease-related targets. GSK will provide research funding and make payments of 33 million pounds ($43 million), if pre-clinical milestones are met.

($1 = 0.7682 pounds)

(Reporting by Ben Hirschler; Editing by Adrian Croft/Keith Weir)


          Carl Edwin Wieman   

Carl Edwin Wieman (1951 – ). Físico americano nacido en Corvallis, Oregon, investigador en el Joint Institute for Laboratory Astrophysics y de la University of Colorado Boulder, CO, USA, laureado con el Premio Nobel de Física (2001), juntamente con su compañero Eric Allin Cornell y el alemán Wolfgang Ketterle, por estudios en el área de […]

La entrada Carl Edwin Wieman aparece primero en Escuelapedia - Recursos educativos.


          80位:Welcome to the Universe: An Astrophysical Tour   
著者名:Neil Degrasse Tyson、Michael A. Strauss/発売日:2017年/1,555円(税込)/送料無料
          A total eclipse will sweep the US in August, and people are going nuts for it   
A June ad for campsites in the small town of Madras, Ore., anticipates the influx of tourists expected in the prime viewing location for the Aug. 21 total solar eclipse.

A June ad for campsites in the small town of Madras, Ore., anticipates the influx of tourists expected in the prime viewing location for the Aug. 21 total solar eclipse.; Credit: Gillian Flaccus/AP

Laurel Wamsley | NPR

On Monday, Aug. 21, a solar eclipse will be visible across America. The last time the contiguous United States saw a total eclipse was 1979, and it will be the first coast-to-coast solar eclipse in 99 years, reports The Associated Press.

A partial eclipse will be visible throughout the United States, according to NASA. But within a band that the agency is calling the "path of totality" stretching from Oregon to South Carolina, viewers will witness a total eclipse. And in many of those places, an eclipse industry is already booming.

The mayor of Hopkinsville, Ky., says his town has spent more than half a million dollars preparing for the event since learning 10 years ago that the area would be in the path of totality.

The town even has an eclipse coordinator.

"It'll look like twilight outside. You'll be able to see stars. Four planets will be visible — Venus, Jupiter, Mars and Mercury. You'll notice the temperature drop about 5 to 10 degrees," the coordinator, Brooke Jung, told the AP. "You'll notice that animals will get a little disoriented. Birds will think that it's nighttime and go in to roost. Some of the flowers and plants that close up at night will close up."

"If it's cloudy, then we'll just have to deal with that reality as best we can and help people get to other locations," Mayor Carter Hendricks told the AP. "But, if somehow we overprepare and we're underwhelmed by the crowd size, that's a big concern for me."

Homes on Airbnb that are being rented specifically for the eclipse are going for thousands of dollars a night, like this one, in Casper, Wyo.

Perryville, Mo., is also on the path of total eclipse. "We don't normally rent out our house because this is not normally a tourist destination," the town's public works director, Mark Brown, told the St. Louis-Post Dispatch. He said he had listed his house on Airbnb for $2,500 a night during the eclipse, with a three-night minimum.

"We don't want to give up our house," he told the newspaper, "but everybody's got a number."

The Charleston Post and Courier reports that a million people are expected to visit South Carolina for the eclipse. Charleston's visitors bureau has set up a website listing area viewing events and hotel packages. Total eclipse will occur there at 2:48 p.m. ET, according to NASA.

"Highway 17 will be gridlock," College of Charleston astrophysicist Laura Penny told the newspaper. "If you're in the path of totality, you're better off watching it right where you are. But if you're in an area where the sun is even 99.9 percent covered, it won't be the same thing. You have to get inside the path of totality to experience the phenomenon of darkness in the middle of the day."

Oregon will be a major hot spot for eclipse watchers. Viewers there will experience the total eclipse first, with Salem and Corvallis in the path of totality at 10:18 a.m. PT.

Like South Carolina, the state is bracing for a massive influx of visitors. Up to a million people are expected to travel to Oregon for the event, the AP reports, and the area around the small town of Madras is expected to draw 100,000 people — with the potential for out-of-this-world traffic jams.

"Bring extra water, bring food. You need to be prepared to be able to survive on your own for 24 to 48 to 72 hours, just like you would in any sort of emergency," Dave Thompson, spokesman for the Oregon Department of Transportation, told news service. "This is pretty much a once-in-a-lifetime opportunity, and it's really worth seeing. But you've got to be prepared or you won't enjoy it."

Authorities in the state worry that if it gets foggy, people will decide to head east at the last moment, creating chaos on the roads.

The Oregonian reports that all of Oregon's reservable campgrounds within the path of totality have been booked. The state released an extra 1,000 campsites in April, and those were booked within 90 minutes.

As a result, people without reservations may start showing up at the state's nonreservable campgrounds two weeks early, the paper reports:

 

 

" 'Don't just assume that your favorite spot is available,' Traci Weaver, a fire communications specialist for the forest service and [Bureau of Land Management], said. 'Don't just have a plan, but have a plan A, B, C and D.'

"Weaver said her worst case scenario is campers losing patience and getting into verbal or physical altercations over campsites — a situation that could be exacerbated by the August heat. Unprepared travelers are also a concern, especially considering most of the non-reservable campgrounds are remote, and often don't provide drinking water or toilets. ...

" 'I keep hoping this will be like Y2K,' [BLM district manager Don] Gonzalez said — a big bust after months of concern. 'We want everybody to get along ... just enjoy your federal lands.' "

Travel website Atlas Obscura is organizing a festival around the eclipse in eastern Oregon. Although, akin to the ill-fated Fyre Festival, it isn't revealing exactly where. While it's clear that scores of people will flock to areas of total eclipse across the country, Atlas Obscura is spinning its fest as a rare chance: "The Path of Totality — where you can experience the eclipse in full — is quite narrow, and our campsite in Eastern Oregon's high desert is one of the few places in the country with a history of clear weather and where full viewing is anticipated. As a result, existing lodging in this desirable region is already scarce."

But, it adds, "we obviously can't guarantee the weather, and no refunds or exchanges will be possible under any conditions."

And in case you were wondering: Yes, there will be glamping, and no, it won't be cheap. The Deluxe Canvas Bell Tent for 2 will run you $1,500, not including admission fees.

In Madras, a town of 6,500, local event planner Lysa Vattimo has been hired to be the city's eclipse planner. She told The Oregonian that the town will spend at least $100,000 to manage the throngs eclipse chasers.

"We had to manage this from a safety standpoint," she said. "The people were coming. We couldn't stop them."

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

This content is from Southern California Public Radio. View the original story at SCPR.org.


          Conference gives undergraduate women skills, inspiration to pursue physics careers   

Meg Urry was the first tenured woman professor in the Physics Department at Yale University and was often the only woman in her physics classes, including her graduate class at MIT, but she still heard a fellow student complain that women were unfairly given advantages over their male colleagues. “That’s when I realized there was something fishy going on,” she said.

Urry spoke at the 2017 APS Conference for Undergraduate Women in Physics (CUWiP) Mid-Atlantic Regional Conference at Princeton University. She told students that she is still often the only woman in the room even though her department now has six out of 32 female faculty members – the highest number of the top 50 physics departments in the U.S. “That’s crazy, right?” Urry said. “If we were offered the same opportunities and had the same treatment, women would be half the faculty in every subject.”

Urry, a professor of astrophysics at Yale whose research focuses on active galaxies that host supermassive black holes in their centers was one of the plenary speakers at the conference, which focused on giving young women the tools to stay in physics and other STEM fields. More than 200 women attended Jan. 13 to Jan. 15 at Princeton University.

Addressing unconscious bias

Urry noted that the percentage of women in the U.S. graduating from college with physics degrees has remained flat at 20 percent for the past decade. Women in physics and other fields are affected by unconscious bias, Urry said. She cited one study that found participants who were given the resumes of equally qualified men and women were more likely to pick resumes with men’s names on them.

The Princeton CUWiP Conference was one of nine conferences nationwide and one in Canada that took place simultaneously. Other host institutions included Harvard University, Virginia Polytechnic Institute, and the University of California, Los Angeles. The conference was offered free aside from a $45 registration fee and travel expenses. It was funded by the DOE’s Office of Science and the National Science Foundation through grants to the American Physical Society.

Shannon Swilley Greco, a Science Education program leader at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL), organized the conference with Lyman Page, chair of the University’s Physics Department, and graduate student Laura Chang. Greco told the young physicists that she hopes the conference will inspire them to stay in a physics or STEM field. “I don’t ever want anyone to leave the field they loved because they felt ill-prepared,” she told the young physicists, “or because they just had so much doubt that they were afraid they weren’t where they were supposed to be, or that they were made to feel unwelcome or uncomfortable.” 

The conference kicked off on Friday, Jan. 13, with a tour of University research laboratories, including the Andlinger Center, Geosciences, and PPPL. More than 60 people attended the PPPL tour, which visited PPPL’s National Spherical Torus Experiment-Upgrade test cell and control room. “I love it!” said Bernadette Haig, a student at Fordham University. “This is new stuff for me, so it’s really cool!”

“Don’t get discouraged”

Women on a career panel made up of women at Google, Solvay, and Princeton and Rowan universities, advised the young women to be persistent. “The golden rule is don’t get discouraged,” said Katerina Visnjic, a senior lecturer in the Princeton Physics Department, who is redesigning the introductory physics curriculum. “When you see scientific results presented, that is the last 1 percent of the work that went into that. It doesn’t reflect the 99 percent that didn’t work.”

The conference offered a variety of workshops on topics from “Mental health,” and “Out in STEM,” to “Negotiation and other professional skills.” In the workshop on “Combatting imposter syndrome & bias and developing a growth mindset,” David Yaeger, an assistant professor of psychology at the University of Texas, Austin, said intelligence is just one factor that predicts an individual’s success. “Intelligence itself is malleable especially in your developing stage,” Yaeger added. “Every time you do a hard mathematical proof, your brain actually changes.”

The “How to be an ally” workshop focused on how to be an ally to under-represented groups. “If you have privilege, use that privilege,” said Geraldine Cochran, dean of the Douglass Project for Rutgers Women in STEM. “If you are only looking at job candidates who have graduate degrees from Harvard and Princeton, why not look at people who did really well but have not gone to undergraduate institutions like that?”

Developing a work-life plan

Students attending a workshop on work-life balance were encouraged to think about developing a work-life plan that builds in time for outside activities and simply having fun. “How are you going to find ways to motivate yourself that help you feel fulfilled? And what is a full life apart from what you imagined a successful life is?” asked Amada Sandoval, director of the Princeton University Women’s Center.

Nergis Mavalvala, a physics professor known for her role in the confirmation of gravitational waves at the Laser Interferometer Gravitational-Wave Observatory, broadcast her keynote speech from Harvard, with all 10 conferences broadcasting video greetings from their audiences. (The Princeton group did a wave).

Among numerous “Hot Topics in Physics” speakers was Fatima Ebrahimi, a PPPL physicist, who discussed her research studying a phenomenon in magnetic reconnection that could be used to start fusion devices called tokamaks and might also yield insights into magnetic reconnection, the process that triggers solar flames, the Northern Lights, and other astrophysical phenomena. “If you know plasma physics, there’s no boundary,” Ebrahimi told students. “You can do detailed analysis in the lab but then you can move on and answer fundamental questions in astrophysics.”

Several students presented their research in a poster session at the end of the day on Jan. 14. On Jan. 15, the final day of the conference, Katja Nowack, an experimental condensed matter physicist at Cornell University, discussed her research. The conference concluded with a Career and Research Expo at the Frick Chemistry Laboratory Building.

CUWiP Plus at PPPL

A group of about 20 students attended a CUWiP Plus session at PPPL, where they spent Sunday afternoon and Monday morning learning about plasma physics led by physicist Arturo Dominguez, Science Education senior program leader. A second group entitled, "Physics on All Scales," learned about astrophysics through a giant radio antenna and a trip on Sunday to the Princeton University Imaging and Analysis Center.  

Participants in the conference said they enjoyed meeting other female physicists. “I wanted to come to the conference because there are only eight women in my year in physics,” said Katherine Guido, a student at the Stevens Institute of Technology in Hoboken, New Jersey. “I thought it would be really cool to talk to other women physicists.”  

“I think it’s amazing.” said Jessica Irving, an associate professor in the University’s Geosciences Department. “I’ve never been to a meeting like this before – a meeting full of women who are excited about science.”

PPPL, on Princeton University's Forrestal Campus in Plainsboro, N.J., is devoted to creating new knowledge about the physics of plasmas — ultra-hot, charged gases — and to developing practical solutions for the creation of fusion energy. The Laboratory is managed by the University for the U.S. Department of Energy’s Office of Science, which is the largest single supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.

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Conference gives undergraduate women skills, inspiration to pursue physics careers

          PPPL physicists make first-ever direct observation of collisional plasmoid instability during magnetic reconnection in a laboratory setting   

Physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have for the first time directly observed a phenomenon that had previously only been hypothesized to exist. The phenomenon, plasmoid instabilities that occur during collisional magnetic reconnection, had until this year only been observed indirectly using remote-sensing technology. In a paper published in the August 2016 issue of Physical Review Letters, PPPL physicists report that they created the phenomenon in a laboratory setting where they could measure it directly and confirm its existence on the electron scale, which describes the range of motion of electrons and how quickly they move. This research was funded both by the DOE’s Office of Science and NASA’s Heliophysics Division.

Plasmoid instabilities create magnetic bubbles within plasma, superhot gas whose atoms have separated into electrons and atomic nuclei. The magnetic bubbles then cause fast magnetic reconnection, when a plasma’s magnetic field lines break apart and join together again, releasing large amounts of energy. Before now, physicists at NASA and other institutions had only been able to directly confirm the existence of these instabilities in collisionless plasmas, like those surrounding Earth in the upper atmosphere, in which the plasma particles do not collide often.

Scientists had not been able to confirm the existence of plasmoid instabilities in collisional plasmas, in which the particles frequently collide, because such plasmas occur in outer space, far from Earth. Collisional plasmas like those on the surfaces of stars are so far away that scientists have difficulty measuring them directly. But physicists at the Massachusetts Institute of Technology and elsewhere had predicted their existence years ago.

Scientists have obtained, however, indirect evidence of plasmoid instabilities in outer space. Using telescopes and spectroscopes, as well as fusion facilities like PPPL’s former flagship device known as the National Spherical Torus Experiment (NSTX), which has since been upgraded, scientists took photographs and analyzed light that hinted at the existence of the instabilities. But without direct measurements, they were unable to confirm that the instabilities existed.

“These findings are significant because data gathered in past magnetic reconnection experiments involving collisionless plasma does not apply to the large, collisional plasmas found throughout space,” said Hantao Ji, a professor at Princeton University’s Department of Astrophysical Sciences, distinguished fellow at PPPL, and co-author of the paper. “Scientists have long had difficulty studying these plasmas because it’s hard to create the necessary conditions on Earth, and we can’t just stick probes directly into stars. Now we have a glimpse into their workings.”

During the research, lead author and graduate student Jonathan Jara-Almonte and the team used a PPPL device known as the Magnetic Reconnection Experiment (MRX). Unlike in past experiments, Jara-Almonte and his team used a plasma made out of argon atoms, rather than hydrogen, deuterium or helium. Using argon, they found, allowed them to produce conditions for collisional reconnection within the plasma more easily.

Along with confirming the existence of plasmoid instabilities in collisional plasmas undergoing reconnection, the research showed that instabilities can arise even when a plasma does not conduct electricity well, a condition known as having a low Lundquist number that scientists thought would hinder plasmoid development. This was a surprising finding, since scientists have long predicted that plasmoids would form only when a plasma conducts electricity well.

“The bigger picture is that these results raise some questions about plasmoid instability theory that haven’t been answered yet,” said Jara-Almonte. “The results raise questions about what is really happening in other systems.”

The MRX experiment also confirmed that plasmoids speed up the rate at which reconnection occurs — the first time the effect has been observed in a collisional environment. Understanding how fast reconnection occurs is important because it can affect Earth in dramatic ways. When reconnection happens on the surface of the sun, enormous blobs of plasma shoot into space and can collide with Earth’s magnetic field, creating geomagnetic storms that threaten communication satellites and electricity grids.

PPPL, on Princeton University’s Forrestal Campus in Plainsboro, N.J., is devoted to creating new knowledge about the physics of plasmas — ultra-hot, charged gases — and to developing practical solutions for the creation of fusion energy. The Laboratory is managed by the University for the U.S. Department of Energy’s Office of Science, which is the largest single supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.

Headline: 
PPPL physicists make first-ever direct observation of collisional plasmoid instability during magnetic reconnection in a laboratory setting

          6/30/2017: CATALYST: Will Harvie   

The interview with famed American astrophysicist Neil deGrasse Tyson came at an odd moment. He was promoting an upcoming tour of Australia and New Zealand. The same day, rumours were floating that American president Donald Trump would withdraw from...
          Ilyen fekete lyukakat még nem sikerült megfigyelni   
Először észleltek olyan feketelyuk-duót, amelynek tagjai egymáshoz viszonyítottan mozognak: egy a Földtől mintegy 750 millió fényévnyi távolságra lévő gigantikus galaxis két fekete lyuka közül az egyik a másik körül kering. A kutatást végző nemzetközi kutatócsoport az Astrophysical Journal című tudományos lapban mutatta be felfedezését. A tanulmány szerint valószínűleg ez lehet egy égitest valaha észlelt legapróbb […]
          Best Summer Books: 2017   
Just in time for the fourth of July, we’ve got your hot summer reading list — from The Hate U Give to Eleanor Oliphant is Completely Fine — all cued up. The Fourth of July weekend is here. Straight ahead. We are officially heading into the heart of summer. Congratulations! In the summer of 2017, you might just feel the need for escape, illumination, emotional rescue. And you might be looking to find it in a book. A good book. A great read. We’ve got suggestions this hour from a terrific trio of readers. About husbands and astrophysics. Love, hate, hunger and collapsing empires. This hour On Point: Great summer reads, 2017. Tom Ashbrook Guests Janet Geddis , owner of the Avid Bookshop, which has two locations in Athens, Georgia, and was was named one of the five finalists for the Publisher’s Weekly 2017 Bookstore of the Year Award . Elizabeth Khuri Chandler , co-founder and editor-in-chief of Goodreads. ( @Elizabethkhuri ) Liesl Schillinger , book critic and translator. Regular book
           WASP-21b : a hot-Saturn exoplanet transiting a thick disc star    
Bouchy, François, Hebb, L., Skillen, I., Collier Cameron, A., Smalley, Barry, Udry, S., Anderson, D. R., Boisse, I., Enoch, B., Haswell, C. A. et al. <#>. (2010) WASP-21b : a hot-Saturn exoplanet transiting a thick disc star. Astronomy & Astrophysics, Vol.519 (No.A98). ISSN 0004-6361
          Comment on The Scriptshadow Newsletter is Out! by PQOTD   
Yeah, and because McGillis's character had a Ph.D. in astrophysics, they couldn't just cast anyone. The role needed someone who could play credibly cerebral. Gina Davis springs to mind, but at 6 foot, she'd be 5 inches taller than Tom. Ya couldn't have that.
          Commentaires sur Belgique : à peine 3,5 % des 57.000 réfugiés arrivés en Belgique en 2106 occupent un emploi par Ray   
Merde tous les astrophysiciens n'ont pas trouvé un job ? Comment ça se fait ?!?!
          Alternative Certification Paths   
We need alternative paths to the classroom.

Mind you, we don't need paths that are shortcuts. We don't need an alternative path that is just a five week long truncated training that wouldn't prepare a camp counselor for a summer with jumpy ten year olds. We don't need alternative paths used by charter operators to train people to fill their own charter openings with not-too-qualified bodies. And we definitely don't need the alternative path, favored by more and more states, that is no path at all, but just dumping someone into a classroom when her only qualification is a college degree and a pulse.

Most of the alternative paths in use these days are intended to help businesses fill openings or to help politicians look like they are addressing the teacher "shortage" (a shortage that is really a lack of willingness to do what it takes to make teaching more appealing work).

These alternative paths are bad-- bad for the profession, bad for the people who follow them, bad for the schools where those "teachers" end up working.

But it would also be a mistake to suggest that if you didn't decide to pursue a teaching degree when you were nineteen or twenty, the window has closed and you can never choose teaching as a career.

Nor is it reasonable to expect a later-in-life career switcher to somehow navigate a traditional teacher education program while still supporting herself or her family.

So what would a real alternative certification path for career-changers need to look like?

* Some standard of content knowledge. Yes, even if you're a former astrophycisist who wants to teach first grade. Knowing content well enough to use it in your profession, and knowing it well enough to explain it to young humans are two different things. Maybe more than two.

* Study of developmental psychology. Explaining astrophysics to other astrophysicians is not like explaining anything to small humans. Nor are the behavioral patterns of young humans the same as those of adults. You cannot match your expectations to reality if you don't know anything about reality.

* An understanding of assessment and all the arcane arts of number-crunching involved in assessment.

* Some sort of exposure to the Big Questions of Education. A requirement to reflect and consider what we do, why we do it, and what all that means for how we do it. Look-- you're not leaning how to be a garage mechanic.

* An  introduction to the ins and outs of record keeping and ridiculous education regulation. This is one area where the career-changers previous experience with red tape and bureaucratic baloney will be helpful, as there will be no youthful idealism to scrub away.

* Field experience. This is perhaps the hardest thing to work in, because people seeking a career change cannot necessarily afford a five or ten or fifteen week span in which they earn no income. But getting classroom experience with live students is critical-- perhaps even more critical with older candidates for the classroom who can make the mistake of thinking "I can run meetings with thirty employees, so how hard can it be to handle a room full of eighth graders?"  A strong field experience is important not just in preparing the neo-teacher, but also in helping that neo-teacher decide if she's made a huge mistake.

I can't find many figures on retention of alternative certificate teachers, and what I do find lumps starter-alt-certs like Teach for America together with later-in-life career changers. I can offer the anecdotal observation that in PA, where we offered guest teacher certificates for any career-changers who want to become substitutes, more than half quit, largely because managing a classroom turned out to be far more difficult than they thought. Students are not paid to be your subordinates.

That's why a long, solid field experience is important-- you have to be in that classroom long enough for the shine of newness to wear off.

That's a broad sketch of the bare minimum, and we could get into more specifics, but the bottom line here is that just because you're a grown-up with a college degree doesn't mean a few quick chats will make you fit for a classroom. There should be a path for career-changers, but not short cuts.




          Astrophysics for People in a Hurry   
Astrophysics for People in a Hurry
          Hubble découvre une galaxie morte trop tôt et qui défie l'astrophysique ; Station spatiale chinoise : la Russie est invitée à y participer    
Et aussi : Intelligence artificielle : les robots de la Nasa sauront faire face à l’inconnu ; Deux trois noirs supermassifs dansent l’un autour de l’autre ; Surprise : l'eau est composée de deux liquides !
          Rotation Measures of Radio Sources in Hot Galaxy Clusters   
Дата и время публикации : 2010-07-29T12:50:21Z Авторы публикации и институты : F. Govoni K. Dolag M. Murgia L. Feretti S. Schindler G. Giovannini W. Boschin V. Vacca A. Bonafede Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: Accepted by Astronomy and Astrophysics, 26 pages, 19 figuresПервичная категория: astro-ph.CO Все категории : astro-ph.CO Краткий [...]
          Comparative Spectra of Oxygen-Rich vs. Carbon-Rich Circumstellar Shells: VY Canis Majoris and IRC+10216 at 215-285 GHz   
Дата и время публикации : 2010-07-29T08:43:22Z Авторы публикации и институты : E. D. Tenenbaum J. L. Dodd S. N. Milam N. J. Woolf L. M. Ziurys Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: 21 pages, 3 figures, accepted for publication in Astrophysical Journal LettersПервичная категория: astro-ph.GA Все категории : astro-ph.GA Краткий обзор [...]
          Astrophysics for People in a Hurry by Neil DeGrasse Tyson - audiobook (Downpour.com) - $2.95   
Highly rated latest book by Neil deGrasse Tyson available on audiobook at Downpour.com for $2.95. For those unfamiliar with Downpour, it operates similar to Audible.com and has an app on both IOS and...
          Comment on The Art of Science Learning: Moving forward one step at a time by Carl Strovink   
This is awesome! I was at the conference as well. I also very recently entered the Afterschoolawards.com science contest to try & win $10k. I'm working on an invention, & can't pay for it:( It's hard being a young scientist but not having the connections to get out there & meet professors & astrophysicists. If anybody knows about any other contests, please let me know. Thanks
          Neil deGrasse Tyson Owes Fans a More Honest Conversation About GMOs than 'Food Evolution'   
Neil deGrasse Tyson has inspired millions of people to care about science and imagine themselves as participants in the scientific process. What a hopeful sign it is to see young girls wearing T-shirts emblazoned with the words, “Forget princess, I want to be an astrophysicist.
          «La planète Uranus est un cauchemar géométrique»   
Une équipe d’astrophysiciens du Georgia Institute of Technology (Etats-Unis) ont fait une découverte unique en son genre. À les en croire, Uranus est la seule planète du Système solaire qui tournerait autour sur elle-même en étant «inclinée sur le côté».
          #3: Astrophysics for People in a Hurry   
Astrophysics for
Astrophysics for People in a Hurry
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          Weird pulsars debut at Beijing astronomy meeting   

Newfound oddities challenge researchers’ imaginations

On the Scene

BEIJING — A cast of exotic, and sometimes mysterious, astrophysical objects quietly took center stage during the first session of the pulsar symposium at the International Astronomical Union’s General Assembly meeting on August 20.

Presenters cautiously discussed several new — indeed, some very new — discoveries, including a millisecond pulsar parked in the heart of a triple system, another “planet”-pulsar pair similar to the (erroneously named) diamond planet, and a very distant, mysterious burst resembling the controversial Lorimer burst of 2007.

Pulsars are spinning neutron stars, the extremely dense remains of collapsed giants.  Some, the millisecond pulsars, can spin up to 1,000 times per second. Scientists have been conducting vast searches for these objects, which are better timekeepers than atomic clocks, and whose spins readily reveal orbiting bodies.

“Every time we’ve looked for new pulsars in new surveys, we find things that are interesting,” said Ryan Lynch, a postdoctoral fellow at  McGill University in Montreal who presented results from a survey using the Green Bank Telescope in West Virginia.

Among the objects Lynch presented was PSR J0337+1715, a millisecond pulsar forming the heart of a triple system, only the second one ever seen.  Spinning once every 2.7 milliseconds, the pulsar hosts a white dwarf star in a 1.6-day orbit, as well as a larger, unknown object in a 327-day orbit. This system differs from the other known triple system, which comprises a millisecond pulsar orbited by a white dwarf and a Jupiter-mass object, Lynch said.

Jupiter-mass objects also made an appearance in a talk by Cherry Ng, a graduate student at the Max Planck Institute for Radio Astronomy in Bonn, Germany. Ng described a millisecond pulsar — spinning once every 3.4 milliseconds — orbited by an object weighing 0.8 Jupiter masses. The system was discovered in July.

Ng called the system “Number Two,” a reference to its similarity to the “diamond planet” announced last year. That system, PSR J1719-1438, comprises a millisecond pulsar and a Jupiter-mass object. But the object is way too dense to be a proper planet, and is instead the probable collapsed core of a former white dwarf star that has lost as much as 99 percent of its mass.

Ng didn’t present a density for the object circling “Number Two,” noting only that the two systems “are quite similar.”

But astronomer Scott Ransom suggests that Number Two’s friend is likely similar in density to the known diamond “planet.”  

“It looks like it’s the remnant of some type of old white dwarf,” says Ransom, from the U.S. National Radio Astronomy Observatory. “These things — whatever you call these outer things — are rare.... Some weird thing is happening to these systems.”

Rounding out the discoveries is perhaps the weirdest object of all, an astrophysical one-hit wonder sighted just two weeks ago by scientists at the Parkes Observatory in Australia. The object resembles the now controversial “Lorimer burst,” a superbright, superfast extragalactic radio outburst that made headlines in 2007 when it leapt out of a pulsar survey.

Since then, though, events in Earth’s atmosphere have mimicked the signal from the original Lorimer burst, causing some scientists to doubt its astrophysical nature, said Michael Keith, a postdoctoral fellow at Australia’s Commonwealth Scientific and Industrial Research Organisation, who briefly discussed the object in his presentation.

But the new burst looks better than the original. It’s a good, clean signal, and coming from much farther away. “The model of the galaxy would have to be really, really wrong for this thing to be inside,” Keith said.

Nobody knows what causes these outbursts, though some have suggested the bursts could result from collapsing black holes or cosmic collisions. “It could be some completely new phenomenon,” Ransom says. He notes that if this second observation is real, it means these mysterious bursts could be quite common and waiting to be discovered with the right survey. “Some amazing event that is causing these bursts could be happening all the time.”

Further Reading

S. Thorsett et al. The triple pulsar system PSR B1620-26 in M4. The Astrophysical Journal. Volume 253, October 1, 1999, p. 763. [Go to]

M. Bailes et al. Transformation of a star into a planet in a millisecond binary. Science. Vol. 333. Published online August 25, 2011. [Go to]

D. Lorimer et al. A bright millisecond radio burst of extragalactic origin. Science. Vol. 318. Published online September 27, 2007. [Go to]

          AstrophysiX-Men   
none
          8 Minutes review – tripped by the light fantastic   

Sadler’s Wells, London
Alexander Whitley follows an inspiring theme, with immersive sounds and visions, but the choreography is rather less earth-shattering

Photons, particles which transmit light, take eight minutes to travel from the sun to earth. Hence the title of Alexander Whitley’s new work. The piece, which had its premiere on Tuesday, aims to express concepts from astrophysics in dance, and if this quest is only partly successful, the work is an aural and visual tour de force.

Whitley’s central premise, following a collaboration with space scientists, appears to be that humanity stands at the halfway point between the microcosmic and the macrocosmic, and that what happens on the molecular scale also happens on the incalculably vast scale. This is an inspiring notion, enabling us to read Whitley’s seven dancers as metaphorical entities. As bodies in space, both literally and figuratively.

Continue reading...
          Parameterizing and Measuring Dark Energy Trajectories from Late-Inflatons   
Дата и время публикации : 2010-07-29T19:02:18Z Авторы публикации и институты : Zhiqi Huang J. Richard Bond Lev Kofman Ссылка на журнал-издание: Astrophys.J.726:64,2011Коментарии к cтатье: Ссылка на журнал-издание не найденаПервичная категория: astro-ph.CO Все категории : astro-ph.CO, hep-ph, hep-th Краткий обзор статьи: Bulk dark energy properties are determined by the redshift evolution of its pressure-to-density ratio, $w_{de}(z)$. [...]
          A New Small-Amplitude Variable Hot DQ White Dwarf   
Дата и время публикации : 2010-07-29T18:43:50Z Авторы публикации и институты : B. H. Dunlap B. N. Barlow J. C. Clemens Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: Accepted for publication in the Astrophysical Journal Letters. 5 pages, 2 figures, uses emulateapjПервичная категория: astro-ph.SR Все категории : astro-ph.SR Краткий обзор статьи: We present [...]
          IRAS 22198+6336: Discovery of an Intermediate-Mass Hot Core   
Дата и время публикации : 2010-07-29T16:29:09Z Авторы публикации и институты : Alvaro Sanchez-Monge Aina Palau Robert Estalella Stan Kurtz Qizhou Zhang James Di Francesco Debra Shepherd Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: Accepted for publication in The Astrophysical Journal Letters [5 pages, 4 figures, 1 table]Первичная категория: astro-ph.GA Все категории : [...]
          Neil deGrasse Tyson Owes Fans a More Honest Conversation About GMOs than 'Food Evolution'   
By promoting Monsanto's corporate propaganda, Tyson risks losing many of his devoted fans.

Neil deGrasse Tyson has inspired millions of people to care about science and imagine themselves as participants in the scientific process. What a hopeful sign it is to see young girls wearing T-shirts emblazoned with the words, “Forget princess, I want to be an astrophysicist.”

His devoted fan base, as I’ve discovered in the past few days, includes my mom, my best friend and my closest colleagues. All of them, and especially the young people who trust Tyson to lead with integrity in matters of science, deserve better than the twisted tale dished out by "Food Evolution," the new documentary film about genetically modified foods that is driving its promotion on the coattails of Tyson’s narration and kicking up controversy for its biased approach.  

Already, two of the best-known experts interviewed for the film, Marion Nestle and Michael Pollan, have complained that their views were misrepresented and their comments taken out of context.

My review of "Food Evolution" describes the film as a textbook case of corporate propaganda, and offers clearcut examples of how the film selectively and unfairly presents science. The review explains how a trade group, whose leadership hails from the agrichemical industry, funded "Food Evolution" as part of a multi-year messaging project and handpicked its director, Scott Hamilton Kennedy.

This is an unusual scenario for a science documentary, but it wouldn’t matter if the film reported fairly and honestly about the topic it purports to objectively explore. The film does not deliver on that promise, and making matters worse, the filmmakers are facing a series of embarrassing revelations about their unfair treatment of interview subjects. 

Two days before the film’s official release, Nestle, a professor at New York University, wrote a harsh review about the film’s many biases, and said she has repeatedly asked the filmmakers to remove her short interview clip. “The director refuses. He believes his film is fair and balanced. I do not,” Nestle wrote. “I am often interviewed and hardly ever quoted incorrectly or out of context. This film is one of those rare exceptions.”

She concluded of the film, “I view it as a slick piece of GMO industry propaganda. If you want a thoughtful discussion of the real issues raised by food biotechnology, you will need to look elsewhere.”

Pollan, a professor at UC Berkeley who also appears in "Food Evolution" and whose name the filmmakers have been dropping in their promotional efforts, said his experience and take on the film were “much the same” as Nestle’s, and that the filmmakers have misrepresented his views.  

Interviews with several other GMO critics who appear in the film, or were asked to be in it, corroborate the picture of a strange process involving sneaky filming, selective editing, misrepresentation and lack of disclosure about the film’s funding.

Eric Holt-Giménez, the executive director of the Institute for Food and Development Policy (Food First), an agroecologist with 30 years of experience in the developing world, said he spent four hours with the filmmakers discussing research from the institute’s books and trying to raise issues related to the structural aspects of hunger and how GMOs have exacerbated rural poverty and decreased environmental resilience. His interview was left out of the film entirely.

Holt-Giménez said that no matter what information he provided, director Kennedy focused on the health and safety discussion and replied that he just didn't see what was wrong with GMOs. Holt-Giménez also said the filmmakers refused to answer his questions about who was funding them.

Tufts researcher Timothy Wise, an agricultural development expert, withdrew his consent to be included in the film after asking repeatedly for more information about the funding.

Why the evasions and deceptions? One possible explanation is that the film is not an objective investigation into the science of GMOs but rather a messaging project to advance the agenda of the agrichemical industry.

The positive publicity from a pro-GMO movie—such as the shallow review written by Daniel M. Gold in the New York Times—could prove useful at a crucial political moment as the seed/chemical corporations face lawsuits and regulatory threats and pursue mega mergers to consolidate control over our food supply.

As Neil deGrasse Tyson has famously said, “The good thing about science is that it’s true, whether or not you believe in it.” But Tyson seems to forget that history is also true, whether or not you believe in it.  

It is true, whether or not we like it, that corporations such as Monsanto have a history of manipulating science, academia and the media to manufacture doubt and confusion about science in order to keep regulations and public scrutiny to a minimum as they do whatever they need to do to maximize profits.

Now that he is in the middle of the contentious GMO debate, Tyson owes it to his fans to broker a more honest conversation—one that involves not just the views of genetic engineers who have a financial stake in public acceptance of the technology that provides their livelihood, but also considers the broader cultural, political and scientific realities relevant to the future of our food system.

A more honest conversation about GMOs would include information about the complex and contradictory nature of the science; the proprietary controls over research; the legitimate concerns about the health risks of glyphosate and the worsening pesticide treadmill problem.

It would consider the environmental, social justice and economic issues at stake, and the political context in which decisions about science—and big-budget movies that purport to document science—are made.

As Tyson has so eloquently explained, “the cross pollination of disciplines is fundamental to truly revolutionary advances in our culture.”

 

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          Ngôi sao khổng lồ đỏ sắp phát nổ lớn hơn Mặt trời 1.400 lần    
Ngôi sao khổng lồ đỏ Betelgeuse lớn gấp 1.400 lần Mặt trời đã đến giai đoạn cuối cuộc đời và chuẩn bị phát nổ. Khi đó, ánh sáng phát ra có thể quan sát được từ Trái đất.

Ngôi sao khổng lồ đỏ Betelgeuse đã đến giai đoạn cuối cuộc đời và chuẩn bị phát nổ. (Ảnh: Youtube).

Eamon O’Gorman và các cộng sự tại Viện Nghiên cứu Cấp cao Dublin (DIAS), Ireland, sử dụng kính thiên văn vô tuyến lớn nhất thế giới ALMA đặt tại Chile để quan sát sắc quyển (chromosphere) của ngôi sao Betelgeuse ở bước sóng dưới milimet.

Kết quả nghiên cứu đăng trên tạp chí Astronomy & Astrophysics hôm 20/6 cho thấy, khí quyển của Betelgeuse có nhiệt độ trung bình 2.487 độ C ở khoảng cách bằng 1,3 lần bán kính sao, thấp hơn cả nhiệt độ của quang quyển (3.417 độ C) và nhiệt độ ở khoảng cách bằng hai lần bán kính sao.

Nhóm nghiên cứu tin rằng, bầu khí quyển không được nung nóng đồng đều là do quá trình đối lưu quy mô lớn gây ra bởi từ tính của ngôi sao.

Ngoài ra, các nhà khoa học phát hiện sự phát tán khí và bụi trong bầu khí quyển của Betelgeuse không đối xứng theo hình cầu mà bị lệch về phía Đông và Đông Bắc. “Quá trình phát tán không đối xứng cho thấy sự nóng lên cục bộ diễn ra trong bầu khí quyển của Betelgeuse”, nhóm nghiên cứu kết luận.

Betelgeuse, ngôi sao sáng thứ 2 trong chòm sao Orion, là một sao khổng lồ đỏ nằm cách Trái đất 650 năm ánh sáng, theo Sci-News. Nó có bán kính lớn hơn Mặt trời 1.400 lần và sáng hơn Mặt trời 100.000 lần.

Dù mới chỉ tồn tại khoảng 8 triệu năm, Betelgeuse đã đến giai đoạn cuối cuộc đời và chuẩn bị phát nổ thành một siêu tân tinh. Khi điều này xảy ra, nó sẽ phát ra bên ngoài một nguồn năng lượng vô cùng lớn đến mức ta không thể hình dung nổi. hiện tượng này sẽ dễ dàng được nhìn thấy từ Trái đất, thậm chí ngay cả trong ánh sáng ban ngày.

Theo VNE

          Spitzer View of Young Massive Stars in the LMC HII Complexes. II. N159   
Дата и время публикации : 2010-07-29T20:18:28Z Авторы публикации и институты : C. -H. Rosie Chen Remy Indebetouw You-Hua Chu Robert A. Gruendl Gerard Testor Fabian Heitsch Jonathan P. Seale Margaret Meixner Marta Sewilo Ссылка на журнал-издание: ApJ (2010) 721, 1206-1232Коментарии к cтатье: 60 pages, 11 figures. Accepted for publication in Astrophysical JournalПервичная категория: astro-ph.GA Все [...]
          From Galaxy Clusters to Ultra-Faint Dwarf Spheroidals: A Fundamental Curve Connecting Dispersion-supported Galaxies to Their Dark Matter Halos   
Дата и время публикации : 2010-07-29T20:00:01Z Авторы публикации и институты : Erik J. Tollerud James S. Bullock Genevieve J. Graves Joe Wolf Ссылка на журнал-издание: Astrophys.J. 726:108, 2011Коментарии к cтатье: 27 pages, 18 figures, ApJ accepted. High-res movies of 3D figures are available at http://www.physics.uci.edu/~bullock/fcurve/movies.htmlПервичная категория: astro-ph.CO Все категории : astro-ph.CO Краткий обзор статьи: We [...]
          On the suspected timing-offset-induced calibration error in the Wilkinson microwave anisotropy probe time-ordered data   
Дата и время публикации : 2010-07-29T19:48:45Z Авторы публикации и институты : Boudewijn F. Roukema (Torun Centre for Astronomy) Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: 10 pages, 5 figures, 4 tables, submitted to Astronomy & Astrophysics; v2: many minor changesПервичная категория: astro-ph.CO Все категории : astro-ph.CO Краткий обзор статьи: In the time-ordered [...]
          Viscoresistive MHD Configurations of Plasma in Accretion Disks   
Дата и время публикации : 2010-07-29T19:35:21Z Авторы публикации и институты : Giovanni Montani Riccardo Benini Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: 19 pages, 4 figures. To appear on the Proceedings of the Second Italian-Pakistani Workshop on Relativistic AstrophysicsПервичная категория: astro-ph.HE Все категории : astro-ph.HE, physics.plasm-ph Краткий обзор статьи: We present a [...]
          Abundances for a large sample of red giants in NGC 1851: hints for a merger of two clusters?   
Дата и время публикации : 2010-07-29T19:17:57Z Авторы публикации и институты : E. Carretta (INAF-Oss. Astr. Bologna) R. G. Gratton (INAF-Oss. Astr. Padova, Excellence Cluster Universe, Max Planck Inst. Astrophys) S. Lucatello (INAF-Oss. Astr. Padova, Excellence Cluster Universe, Max Planck Inst. Astrophys) A. Bragaglia (INAF-Oss. Astr. Bologna) G. Catanzaro (INAF-Oss. Astr. Catania) F. Leone (Univers. Catania) [...]
          Prebiotic atmosphere discovered on accretion disk of baby star   
An international research team, led by Chin-Fei Lee of the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA, Taiwan), has used the Atacama Large Millimeter/submillimeter Array (ALMA) to detect complex organic molecules for the first time in the atmosphere of an accretion disk around a very young protostar. These molecules play a crucial role in producing the rich organic chemistry needed for life. The discovery suggests...

[[ This is a content summary only. Visit my website for full links, other content, and more! ]]

          Astrophysics for People in a Hurry   
Astrophysics for People in a Hurry
          Table top plasma gets wind of solar turbulence   
Scientists from India and Portugal recreate solar turbulence on a table top using a high intensity ultrashort laser pulse to excite a hot, dense plasma and followed the evolution of the giant magnetic field generated by the plasma dynamics. This opens the possibility of studying astrophysical phenomena like the evolution of stars, in the lab.
          Astrônomos encontram, pela primeira vez, dois buracos negros supermassivos orbitando um ao outro   
Em uma grande descoberta, astrônomos observaram um par de buracos negros supermassivos orbitando um ao outro, a centenas de milhões de anos-luz de distância.

A descoberta é o resultado de mais de duas décadas de trabalho, e um feito incrível considerando as medições precisas necessárias. Compreender a natureza de tais interações nos dará uma maior compreensão de como as galáxias e o universo, evoluíram.
"Durante muito tempo, temos olhado para o espaço para tentar encontrar um par destes buracos negros supermassivos orbitando como resultado de duas galáxias em fusão", diz Greg Taylor, um dos pesquisadores da Universidade do Novo México (UNM).
"Mesmo que nós tenhamos teorizado que isso deve estar acontecendo, nunca ninguém tinha visto até agora."
A equipe observou o par de buracos negros em uma galáxia, chamado 0402 + 379, cerca de 750 milhões de anos luz da Terra.

De acordo com Karishma Bansal, o primeiro autor do artigo, também da UNM, a massa combinada destes buracos negros supermassivos é de cerca de 15 bilhões de vezes maior do que o nosso Sol, e seu período orbital é de cerca de 24.000 anos.

Isto significa que mesmo que a equipe tenha observado esses buracos negros há mais de uma década, eles não foram capazes de detectar até mesmo a menor curvatura em sua órbita.

"Se você imaginar um caracol no planeta recém-descoberto orbitando Proxima Centauri - 4.243 anos-luz de distância - se movendo em 1cm [0,4 polegadas] por segundo, é o movimento angular que estamos tratando aqui", explica Roger W. Romani, um dos pesquisadores da Universidade de Stanford.

Os buracos negros são notoriamente difíceis de estudar porque não podem ser observados diretamente, mas só podem ser detectados a partir de seu efeito sobre a matéria nas proximidades.

Assim, para encontrar a órbita desses buracos negros, a equipe UNM usou o Very Long Baseline Array (VLBA), que é composto de 10 radiotelescópios. Ao medir as várias frequências de sinais de rádio emitidas pelos buracos negros, a equipe foi então capaz de traçar sua trajetória.

"Quando o Dr. Taylor me deu esses dados, eu estava no início de aprender a imagem e compreendê-la", disse Bansal .

"E, como eu aprendi nos dados que remontam a 2003, nós traçamos isso e determinamos que eles estão orbitando um ao outro. É muito emocionante." A realização técnica desta descoberta é um triunfo e irá melhorar muito a nossa compreensão desses objetos enigmáticos.

Desde a teoria da relatividade geral de Einstein, os astrônomos se fascinaram pelos buracos negros supermassivos. Recentemente, houveram várias novas descobertas sobre buracos negros, mas ainda não conhecemos muito sobre eles. 

Continuar a observar a órbita e interação desses buracos negros irá revelar muito sobre onde nossa galáxia veio, qual o seu destino no futuro e o papel que os buracos negros desempenham neste processo.

Atualmente, a galáxia de Andrômeda, que também contém um buraco negro supermassivo, é projetado para colidir com a nossa Via Láctea - tornando o evento que a equipe UNM está observando o potencial futuro da nossa galáxia em alguns bilhões de anos.

"Os buracos negros supermassivos têm muita influência sobre as estrelas em torno deles e o crescimento e evolução da galáxia", diz Taylor

"Então, entender mais sobre eles e o que acontece quando eles se fundem uns com os outros pode ser importante para a nossa compreensão do universo."

A equipe UNM vai voltar-se para esses buracos negros em poucos anos para confirmar observações e melhorar suas projeções em torno de órbitas e trajetórias.

Por agora, podemos apreciar o fato de que eles finalmente se mostraram em uma observação direta pela primeira vez e sem dúvida irão inspirar outros trabalhos pela frente no mundo científico mais amplo.

O artigo foi publicado no The Astrophysical Journal com uma versão pré-impressão disponível no arXiv.

          What Books Are Celebrities Reading Lately?   

The Alice Network

reesewitherspoon: The votes are in y'all... #TheAliceNetwork won as our next @rwbookclub selection! I think you’ll really enjoy this exciting and fast-paced story about a pregnant American socialite who teams up with a female ex-spy and a hot-tempered young soldier in the aftermath of WWII. A story of courage and redemption. Happy reading! 📖 #RWBookClub




Granta 139: Best of Young American Novelists

emmaroberts: Books for brunch




Hunger

katebeckinsale: In this climate of so much fear and judgement and knee jerk reactions to people's differences , thank you to @roxanegay74 for this beautiful , dignified , vulnerable book, for reaching into your pain and sharing it . So many people have unbearable , difficult things that have brought them to where they imperfectly,humanly are . You move the world a little further along for all of us . Respect ❤️




Astrophysics for People in a Hurry

josephineskriver: no matter how busy you get.. never get too busy to lose yourself in a book. 📕



Monty Python Speaks

mindykaling: A terrific present from @asekar95 with a note that is as correct as it is slightly damning!



Invasion Of Love - The Path

adrianalima✨🌟 KEPT ME COMPANY IN MY JOURNEY ☀️✨💎💫INVASION OF LOVE ❤️ THE PATH❤️ @metinhara ❤️💫



Things You Should Already Know About Dating, You F*cking Idiot




Sources: 1, 2, 3, 4, 5, 6, 7
          Ngôi sao khổng lồ đỏ sắp phát nổ lớn hơn Mặt trời 1.400 lần   
Ngôi sao khổng lồ đỏ Betelgeuse lớn gấp 1.400 lần Mặt trời đã đến giai đoạn cuối cuộc đời và chuẩn bị phát nổ. Khi đó, ánh sáng phát ra có thể quan sát được từ Trái đất.


Ngôi sao khổng lồ đỏ Betelgeuse đã đến giai đoạn cuối cuộc đời và chuẩn bị phát nổ. (Ảnh: Youtube).

Eamon O’Gorman và các cộng sự tại Viện Nghiên cứu Cấp cao Dublin (DIAS), Ireland, sử dụng kính thiên văn vô tuyến lớn nhất thế giới ALMA đặt tại Chile để quan sát sắc quyển (chromosphere) của ngôi sao Betelgeuse ở bước sóng dưới milimet.

Kết quả nghiên cứu đăng trên tạp chí Astronomy & Astrophysics hôm 20/6 cho thấy, khí quyển của Betelgeuse có nhiệt độ trung bình 2.487 độ C ở khoảng cách bằng 1,3 lần bán kính sao, thấp hơn cả nhiệt độ của quang quyển (3.417 độ C) và nhiệt độ ở khoảng cách bằng hai lần bán kính sao.

Nhóm nghiên cứu tin rằng, bầu khí quyển không được nung nóng đồng đều là do quá trình đối lưu quy mô lớn gây ra bởi từ tính của ngôi sao.

Ngoài ra, các nhà khoa học phát hiện sự phát tán khí và bụi trong bầu khí quyển của Betelgeuse không đối xứng theo hình cầu mà bị lệch về phía Đông và Đông Bắc. “Quá trình phát tán không đối xứng cho thấy sự nóng lên cục bộ diễn ra trong bầu khí quyển của Betelgeuse”, nhóm nghiên cứu kết luận.

Betelgeuse, ngôi sao sáng thứ 2 trong chòm sao Orion, là một sao khổng lồ đỏ nằm cách Trái đất 650 năm ánh sáng, theo Sci-News. Nó có bán kính lớn hơn Mặt trời 1.400 lần và sáng hơn Mặt trời 100.000 lần.

Dù mới chỉ tồn tại khoảng 8 triệu năm, Betelgeuse đã đến giai đoạn cuối cuộc đời và chuẩn bị phát nổ thành một siêu tân tinh. Khi điều này xảy ra, nó sẽ phát ra bên ngoài một nguồn năng lượng vô cùng lớn đến mức ta không thể hình dung nổi. hiện tượng này sẽ dễ dàng được nhìn thấy từ Trái đất, thậm chí ngay cả trong ánh sáng ban ngày.

Theo VNE

          Astrônomos encontram, pela primeira vez, dois buracos negros supermassivos orbitando um ao outro   
Em uma grande descoberta, astrônomos observaram um par de buracos negros supermassivos orbitando um ao outro, a centenas de milhões de anos-luz de distância.

A descoberta é o resultado de mais de duas décadas de trabalho, e um feito incrível considerando as medições precisas necessárias. Compreender a natureza de tais interações nos dará uma maior compreensão de como as galáxias e o universo, evoluíram.
"Durante muito tempo, temos olhado para o espaço para tentar encontrar um par destes buracos negros supermassivos orbitando como resultado de duas galáxias em fusão", diz Greg Taylor, um dos pesquisadores da Universidade do Novo México (UNM).
"Mesmo que nós tenhamos teorizado que isso deve estar acontecendo, nunca ninguém tinha visto até agora."
A equipe observou o par de buracos negros em uma galáxia, chamado 0402 + 379, cerca de 750 milhões de anos luz da Terra.

De acordo com Karishma Bansal, o primeiro autor do artigo, também da UNM, a massa combinada destes buracos negros supermassivos é de cerca de 15 bilhões de vezes maior do que o nosso Sol, e seu período orbital é de cerca de 24.000 anos.

Isto significa que mesmo que a equipe tenha observado esses buracos negros há mais de uma década, eles não foram capazes de detectar até mesmo a menor curvatura em sua órbita.

"Se você imaginar um caracol no planeta recém-descoberto orbitando Proxima Centauri - 4.243 anos-luz de distância - se movendo em 1cm [0,4 polegadas] por segundo, é o movimento angular que estamos tratando aqui", explica Roger W. Romani, um dos pesquisadores da Universidade de Stanford.

Os buracos negros são notoriamente difíceis de estudar porque não podem ser observados diretamente, mas só podem ser detectados a partir de seu efeito sobre a matéria nas proximidades.

Assim, para encontrar a órbita desses buracos negros, a equipe UNM usou o Very Long Baseline Array (VLBA), que é composto de 10 radiotelescópios. Ao medir as várias frequências de sinais de rádio emitidas pelos buracos negros, a equipe foi então capaz de traçar sua trajetória.

"Quando o Dr. Taylor me deu esses dados, eu estava no início de aprender a imagem e compreendê-la", disse Bansal .

"E, como eu aprendi nos dados que remontam a 2003, nós traçamos isso e determinamos que eles estão orbitando um ao outro. É muito emocionante." A realização técnica desta descoberta é um triunfo e irá melhorar muito a nossa compreensão desses objetos enigmáticos.

Desde a teoria da relatividade geral de Einstein, os astrônomos se fascinaram pelos buracos negros supermassivos. Recentemente, houveram várias novas descobertas sobre buracos negros, mas ainda não conhecemos muito sobre eles. 

Continuar a observar a órbita e interação desses buracos negros irá revelar muito sobre onde nossa galáxia veio, qual o seu destino no futuro e o papel que os buracos negros desempenham neste processo.

Atualmente, a galáxia de Andrômeda, que também contém um buraco negro supermassivo, é projetado para colidir com a nossa Via Láctea - tornando o evento que a equipe UNM está observando o potencial futuro da nossa galáxia em alguns bilhões de anos.

"Os buracos negros supermassivos têm muita influência sobre as estrelas em torno deles e o crescimento e evolução da galáxia", diz Taylor

"Então, entender mais sobre eles e o que acontece quando eles se fundem uns com os outros pode ser importante para a nossa compreensão do universo."

A equipe UNM vai voltar-se para esses buracos negros em poucos anos para confirmar observações e melhorar suas projeções em torno de órbitas e trajetórias.

Por agora, podemos apreciar o fato de que eles finalmente se mostraram em uma observação direta pela primeira vez e sem dúvida irão inspirar outros trabalhos pela frente no mundo científico mais amplo.

O artigo foi publicado no The Astrophysical Journal com uma versão pré-impressão disponível no arXiv.

          Complex Organic Molecules Found On "Space Hamburger"   
Taipei, Taiwan (SPX) Jul 03, 2017
An international research team, led by Chin-Fei Lee of the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA, Taiwan), has used the Atacama Large Millimeter/submillimeter Array (ALMA) to detect complex organic molecules for the first time in the atmosphere of an accretion disk around a very young protostar. These molecules play a crucial role in producing the rich organic chem
          Big pharma turns to artificial intelligence to speed drug discovery, GSK signs deal   
London: The world's leading drug companies are turning to artificial intelligence to improve the hit-and-miss business of finding new medicines, with GlaxoSmithKline unveiling a new $43 million deal in the field on Sunday.

Other pharmaceutical giants including Merck & Co, Johnson & Johnson and Sanofi are also exploring the potential of artificial intelligence (AI) to help streamline the drug discovery process.

The aim is to harness modern supercomputers and machine learning systems to predict how molecules will behave and how likely they are to make a useful drug, thereby saving time and money on unnecessary tests.

AI systems already play a central role in other high-tech areas such as the development of driverless cars and facial recognition software.

"Many large pharma companies are starting to realise the potential of this approach and how it can help improve efficiencies," said Andrew Hopkins, chief executive of privately owned Exscientia, which announced the new tie-up with GSK.

Hopkins, who used to work at Pfizer, said Exscientia's AI system could deliver drug candidates in roughly one-quarter of the time and at one-quarter of the cost of traditional approaches.

The Scotland-based company, which also signed a deal with Sanofi in May, is one of a growing number of start-ups on both sides of the Atlantic that are applying AI to drug research. Others include U.S. firms Berg, Numerate, twoXAR and Atomwise, as well as Britain's BenevolentAI.

"In pharma's eyes these companies are essentially digital biotechs that they can strike partnerships with and which help feed the pipeline," said Nooman Haque, head of life sciences at Silicon Valley Bank in London.

"If this technology really proves itself, you may start to see M&A with pharma, and closer integration of these AI engines into pharma R&D."

STILL TO BE PROVEN

It is not the first time drugmakers have turned to high-tech solutions to boost R&D productivity.

The introduction of "high throughput screening", using robots to rapidly test millions of compounds, generated mountains of leads in the early 2000s but notably failed to solve inefficiencies in the research process.

When it comes to AI, big pharma is treading cautiously, in the knowledge that the technology has yet to demonstrate it can successfully bring a new molecule from computer screen to lab to clinic and finally to market.

"It's still to be proven, but we definitely think we should do the experiment," said John Baldoni, GSK's head of platform technology and science.

Baldoni is also ramping up in-house AI investment at the drugmaker by hiring some unexpected staff with appropriate computing and data handling experience - including astrophysicists.

His goal is to reduce the time it takes from identifying a target for disease intervention to finding a molecule that acts against it from an average 5.5 years today to just one year in future.

"That is a stretch. But as we've learnt more about what modern supercomputers can do, we've gained more confidence," Baldoni told Reuters. "We have an obligation to reduce the cost of drugs and reduce the time it takes to get medicines to patients."

Earlier this year GSK also entered a collaboration with the U.S. Department of Energy and National Cancer Institute to accelerate pre-clinical drug development through use of advanced computational technologies.

The new deal with Exscientia will allow GSK to search for drug candidates for up to 10 disease-related targets. GSK will provide research funding and make payments of 33 million pounds ($43 million), if pre-clinical milestones are met.

($1 = 0.7682 pounds)


          Fast variability from X-ray binaries   
Дата и время публикации : 2010-07-30T10:10:05Z Авторы публикации и институты : Tomaso M. Belloni (INAF – Osservatorio Astronomico di Brera, Merate, Italy) Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: 13 pages, 9 figures, to be published in the proceedings of High Time Resolution Astrophysics IV – The Era of Extremely Large Telescopes, [...]
          Chemical signatures of the first star clusters   
Дата и время публикации : 2010-07-30T05:52:14Z Авторы публикации и институты : Joss Bland-Hawthorn Torgny Karlsson Sanjib Sharma Mark Krumholz Joe Silk Ссылка на журнал-издание: Ссылка на журнал-издание не найденаКоментарии к cтатье: 24 pages, 17 figs; Astrophysical Journal (Sept 20 issue); a full copy is available at http://sydney.edu.au/science/physics/~jbh/share/firststarclusters.pdfПервичная категория: astro-ph.CO Все категории : astro-ph.CO Краткий обзор [...]
          Radiotelescópios Podem Ter Capturado Sinais de Rádio de Uma Estrutura ou Nave Alienígena   
 
Ilustração de uma vela solar alimentada por feixe de
 rádio (vermelho)  gerado na superfície de um planeta 
(M. Weiss / CfA/Reprodução)


Por Gério Ganimedes


Mesmo diante de notícias oficiais, divulgadas por fontes confiáveis e conectadas a membros de sociedades científicas, devemos, controlar a euforia e pesquisar muito, para não cair no caminho errado e apresentar conclusões irreais e fantasiosas. Em 2015 cientistas disseram que detectaram sinais de uma provável mega-estrutura alienígena que estaria extraindo sua energia de uma estrela (Esfera de Dyson - Leia postagem do PQA - AQUI). Curiosamente, tempo depois, esta hipótese foi rechaçada por outros astrônomos que supostamente vieram para derrubar a teoria da Esfera de Dyson e trataram a pesquisa como um equívoco teórico. Agora temos esta notícia recente sobre sinais de rádio provenientes de uma estrutura gigantesca e suposta tecnologia extraterrestre, que foi divulgada pelo portal veja.abril.com.br  ao qual tenho grande respeito e o vejo como fonte de total credibilidade.  O artigo foi publicado no The Astrophysical Journal Letters. Segue a notícia no link abaixo.

 Clique na imagem para ler a notícia
Por questões de direitos autorais preservei a notícia original sem cópia no blog 


Comentário do autor do blog



Diante do estudo, respeitando às colunas acadêmico-científicas que apresentaram o conteúdo de suas pesquisas, posso chegar a uma conclusão rápida de que a "silenciosa e implacável linguagem dos fatos"caminha mais rápida do que nós astrônomos e ufólogos esperávamos. 


Motor de Ganimedes
Leia mais AQUI

O anúncio pode ser um preparativo, ou um alerta à humanidade para um iminente contato com seres extraterrestres, mas ainda assim devemos manter a seriedade e mensurar a dimensão e a argumentação apresentada pela pesquisa publicada, pois as variáveis físicas e inevitáveis centenas, senão milhares de variáveis matemáticas envolvidas, podem resultar em mais um erro de interpretação científico e ou astronômico. Podemos estar diante de um evento histórico, mas mesmo com todos os recursos tecnológicos, ainda me resguardo e contenho minhas idéias que vão muito além do horizonte terrestre.

Fiquem bem... E prepare-se para o dia do contato, seja em nosso mundo, nesta ou numa galáxia muito distante.

Texto: Gério Ganimedes
Fonte: veja.abril.com.br
Colaboração: Rosana Ganimedes

Dedicado ao meu amigo e parceiro Ricardo Roehe - UFOS ONLINE

Gério Ganimedes
Direitos Reservados - Projeto Quartzo Azul©©


          Neil deGrasse Tyson Owes Fans a More Honest Conversation About GMOs than 'Food Evolution'   
By promoting Monsanto's corporate propaganda, Tyson risks losing many of his devoted fans.

Neil deGrasse Tyson has inspired millions of people to care about science and imagine themselves as participants in the scientific process. What a hopeful sign it is to see young girls wearing T-shirts emblazoned with the words, “Forget princess, I want to be an astrophysicist.”

His devoted fan base, as I’ve discovered in the past few days, includes my mom, my best friend and my closest colleagues. All of them, and especially the young people who trust Tyson to lead with integrity in matters of science, deserve better than the twisted tale dished out by "Food Evolution," the new documentary film about genetically modified foods that is driving its promotion on the coattails of Tyson’s narration and kicking up controversy for its biased approach.  

Already, two of the best-known experts interviewed for the film, Marion Nestle and Michael Pollan, have complained that their views were misrepresented and their comments taken out of context.

My review of "Food Evolution" describes the film as a textbook case of corporate propaganda, and offers clearcut examples of how the film selectively and unfairly presents science. The review explains how a trade group, whose leadership hails from the agrichemical industry, funded "Food Evolution" as part of a multi-year messaging project and handpicked its director, Scott Hamilton Kennedy.

This is an unusual scenario for a science documentary, but it wouldn’t matter if the film reported fairly and honestly about the topic it purports to objectively explore. The film does not deliver on that promise, and making matters worse, the filmmakers are facing a series of embarrassing revelations about their unfair treatment of interview subjects. 

Two days before the film’s official release, Nestle, a professor at New York University, wrote a harsh review about the film’s many biases, and said she has repeatedly asked the filmmakers to remove her short interview clip. “The director refuses. He believes his film is fair and balanced. I do not,” Nestle wrote. “I am often interviewed and hardly ever quoted incorrectly or out of context. This film is one of those rare exceptions.”

She concluded of the film, “I view it as a slick piece of GMO industry propaganda. If you want a thoughtful discussion of the real issues raised by food biotechnology, you will need to look elsewhere.”

Pollan, a professor at UC Berkeley who also appears in "Food Evolution" and whose name the filmmakers have been dropping in their promotional efforts, said his experience and take on the film were “much the same” as Nestle’s, and that the filmmakers have misrepresented his views.  

Interviews with several other GMO critics who appear in the film, or were asked to be in it, corroborate the picture of a strange process involving sneaky filming, selective editing, misrepresentation and lack of disclosure about the film’s funding.

Eric Holt-Giménez, the executive director of the Institute for Food and Development Policy (Food First), an agroecologist with 30 years of experience in the developing world, said he spent four hours with the filmmakers discussing research from the institute’s books and trying to raise issues related to the structural aspects of hunger and how GMOs have exacerbated rural poverty and decreased environmental resilience. His interview was left out of the film entirely.

Holt-Giménez said that no matter what information he provided, director Kennedy focused on the health and safety discussion and replied that he just didn't see what was wrong with GMOs. Holt-Giménez also said the filmmakers refused to answer his questions about who was funding them.

Tufts researcher Timothy Wise, an agricultural development expert, withdrew his consent to be included in the film after asking repeatedly for more information about the funding.

Why the evasions and deceptions? One possible explanation is that the film is not an objective investigation into the science of GMOs but rather a messaging project to advance the agenda of the agrichemical industry.

The positive publicity from a pro-GMO movie—such as the shallow review written by Daniel M. Gold in the New York Times—could prove useful at a crucial political moment as the seed/chemical corporations face lawsuits and regulatory threats and pursue mega mergers to consolidate control over our food supply.

As Neil deGrasse Tyson has famously said, “The good thing about science is that it’s true, whether or not you believe in it.” But Tyson seems to forget that history is also true, whether or not you believe in it.  

It is true, whether or not we like it, that corporations such as Monsanto have a history of manipulating science, academia and the media to manufacture doubt and confusion about science in order to keep regulations and public scrutiny to a minimum as they do whatever they need to do to maximize profits.

Now that he is in the middle of the contentious GMO debate, Tyson owes it to his fans to broker a more honest conversation—one that involves not just the views of genetic engineers who have a financial stake in public acceptance of the technology that provides their livelihood, but also considers the broader cultural, political and scientific realities relevant to the future of our food system.

A more honest conversation about GMOs would include information about the complex and contradictory nature of the science; the proprietary controls over research; the legitimate concerns about the health risks of glyphosate and the worsening pesticide treadmill problem.

It would consider the environmental, social justice and economic issues at stake, and the political context in which decisions about science—and big-budget movies that purport to document science—are made.

As Tyson has so eloquently explained, “the cross pollination of disciplines is fundamental to truly revolutionary advances in our culture.”

 

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          Hot This Week: July 3   
Two new superhero movies with vastly different tones - Logan and The Lego Batman Movie - top this week's movie list. Half of the music chart is made up of new releases, led by Lorde and 2 Chainz. John Grisham holds on for another week at #1 in fiction, while astrophysicist Neil deGrasse Tyson surges back to the top in non-fiction.

Have a wonderful Independence Day!

DVD
  1. Logan
  2. The Lego Batman Movie
  3. John Wick Chapter 2
  4. Get Out
  5. Beauty and the Beast
  6. Fist Fight
  7. A Dog's Purpose
  8. Life
  9. The Shack
  10. Fifty Shades Darker
CD
  1. Lorde, Melodrama
  2. 2 Chainz, Pretty Girls Like Trap Music
  3. Kendrick Lamar, DAMN.
  4. Jason Isbell and the 400 Unit, The Nashville Sound
  5. Nickelback, Feed the Machine
  6. Ed Sheeran, Divide
  7. Fleet Foxes, Crack-Up
  8. Bruno Mars, 24K Magic
  9. SZA, Ctrl
  10. Post Malone, Stoney
Fiction
  1. Camino Island, John Grisham
  2. The Silent Corner, Dean Koontz
  3. The Identicals, Elin Hilderbrand
  4. Into the Water, Paula Hawkins
  5. Dangerous Minds, Janet Evanovich
  6. Tom Clancy: Point of Contact, Mike Maden
  7. Kiss Carlo, Adriana Trigiani
  8. Dragon Teeth, Michael Crichton
  9. Come Sundown, Nora Roberts
  10. The Force, Don Winslow
Non-Fiction
  1. Astrophysics for People in a Hurry, Neil deGrasse Tyson
  2. Hillbilly Elegy, J.D. Vance
  3. Al Franken, Giant of the Senate, Al Franken
  4. Understanding Trump, Newt Gingrich
  5. I Can't Make This Up, Kevin Hart and Neil Strauss
  6. Theft by Finding, David Sedaris
  7. Option B, Sheryl Sandberg and Adam Grant
  8. Bill O'Reilly's Legends and Lies: The Civil War, David Fisher
  9. Killers of the Flower Moon, David Grann
  10. Hunger, Roxane Gay

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