Aeronautics and Space Highlights – 1967 NASA Educational Film – S88TV1 – Video

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Aeronautics and Space Highlights - 1967 NASA Educational Film - S88TV1
Activities of NASA during 1967. S88TV1 - Transport, technology, and general interest movies from the past - newsreels, documentaries publicity films from the Prelinger Archives, NASA, US...

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Aeronautics and Space Highlights - 1967 NASA Educational Film - S88TV1 - Video

Rover Searches California Desert for Water to Simulate Future Lunar Missions #Nasa – Video

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Rover Searches California Desert for Water to Simulate Future Lunar Missions #Nasa
Water is critical for human existence, whether on our planet or distant destinations. In support of future space exploration, researchers from NASA #39;s Ames Research Center are searching for...

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Rover Searches California Desert for Water to Simulate Future Lunar Missions #Nasa - Video

NASA sees Tropical Cyclone Nathan over Australia's Top End

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IMAGE:On March 23 at 04:35 UTC, NASA's Aqua satellite captured this image of Tropical Cyclone Nathan over the Top End of the Northern Territory, Australia. view more

Credit: Image Credit: NASA Goddard MODIS Rapid Response Team

Tropical Cyclone Nathan moved from Queensland, Australia west across the Gulf Carpentaria and is now crossing The Top End. NASA's Aqua and Terra satellite provided a day-to-day look at Nathan's western journey.

The Moderate Resolution Imaging Spectroradiometer or MODIS instrument flies aboard two NASA satellites: Terra and Aqua. MODIS provided images from each of those satellites over the course of three days that showed Nathan's western movement and second landfall in the Northern Territory of Australia.

On Saturday, March 21 at 04:50 UTC (12:50 a.m. EDT) MODIS aboard NASA's Aqua satellite captured Tropical Cyclone Nathan moving west through the Gulf of Carpentaria. On March 22 at 01:05 UTC (March 21 at 9:05 p.m. EDT) the MODIS instrument aboard NASA's Terra satellite saw Tropical Cyclone Nathan making landfall near Arnheim Land, in the Northern Territory of Australia.

On March 23 at 04:35 UTC (12:35 a.m. EDT), the MODIS instrument aboard NASA's Aqua satellite captured a visible mage of Tropical Cyclone Nathan over the Top End of the Northern Territory, Australia. The Top End of northern Australia is the northernmost section of the Northern Territory.

At 09:00 UTC (5 a.m. EDT), Nathan's maximum sustained winds were near 65 knots (75 mph/120.4 kph), making it a category one hurricane. Nathan's center was located near 11.4 south and 134.1 east, about 210 nautical miles (241 miles/389 km) east-northeast of Darwin, Australia. Nathan was moving west at 6 knots (7 mph/11 kph).

On March 23, the Australian Bureau of Meteorology has posted Warnings and watches for the Northern Territory. The Tropical Cyclone Warning is in effect from Milingimbi to Cape Don and Point Stuart, including Croker Island, Goulburn Island, Gunbalanya, Jabiru and Maningrida. A Tropical Cyclone Watch is in effect from Cape Hotham to Point Stuart and Cape Don to Milikapiti and eastern Melville Island. For updated conditions, watches and warnings, visit: http://www.bom.gov.au/cyclone.

The Joint Typhoon Warning Center using animated enhanced infrared satellite imagery, noted that Nathan had maintained overall convective signature as it drifted just offshore of the Northern Territory.

Nathan is tracking along the northern edge of a deep-layered subtropical ridge (elongated area of high pressure) to the south, over central Australia. Later on March 23, the ridge will weaken as a mid-latitude trough (elongated area) of low pressure from the southwest approaches, causing Nathan to move southwestward toward Darwin before returning on a westward track.

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NASA sees Tropical Cyclone Nathan over Australia's Top End

NASA's Curiosity rover finds fresh signs of ingredients for life on Mars

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Mars's life-friendly past just got friendlier. Using samples previously collected by the NASA rover Curiosity, scientists have discovered evidence of nitrates in Martian rock: nitrogen compounds that on Earth are a crucial source of nutrients for living things.

The findings, published in the journal Proceedings of the National Academy of Sciences, lend further support to the idea that the Red Planet, now barren and dry, could once have hosted habitable environments.

Although planetary scientists have been on the hunt for organic carbon the type of carbon-containing molecules that could be used and produced by living things nitrogen also plays an essential role in life as we know it, said lead author Jennifer Stern, a planetary geochemist at NASA Goddard Space Flight Center in Greenbelt, Md.

For example, nitrogen is a key component of nucleobases that make up RNA and DNA, and of amino acids, the building blocks of proteins.

People want to follow the carbon, but in many ways nitrogen is just as important a nutrient for life, said Stern, a science team member for the Mars Science Laboratory mission, as Curiositys mission is formally known. Life runs on nitrogen as much as it runs on carbon.

So the scientists examined data from three samples processed by the Sample Analysis at Mars, or SAM, instrument, which is part of a formidable laboratory in Curiositys belly. They looked at samples pulled from three spots near its landing site: aeolian deposits from Rocknest and mudstone deposits from John Klein and Cumberland.

These sites were all visited during a detour from Curiositys main mission, which was to drive to Mt. Sharp, the 3-mile-high mound in the middle of Gale Crater whose clay-rich layers looked like an ideal spot to search for signs of past habitable environments. Going off course was a risk, but it paid off; the John Klein and Cumberland mudstones have previously turned up a smorgasbord of chemicals and water-altered minerals that would have made it a potentially prime place for life, if it ever existed on the Red Planet. Now, this fresh analysis of the nitrogen compounds in these rocks further strengthens that idea.

The rock samples were cooked in SAMs oven and the resulting gases were analyzed. The researchers found a significant amount of nitric oxide, a compound that, before it was cooked, probably came from nitrates, Stern said.

What were detecting is nitric oxide, but we know from lab experiments that when we heat up nitrates, they break down in a predictable way, Stern said. And thats why we think these are nitrates.

The researchers had to carefully subtract out the amount of contamination that would be coming from the rover itself, to make sure they were not getting a false signal.

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NASA's Curiosity rover finds fresh signs of ingredients for life on Mars

NASA catches the 2-day life of Tropical Cyclone Reuben

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IMAGE:On March 22 at 21:50 UTC, the MODIS instrument aboard NASA's Terra satellite captured this image of Tropical Cyclone Reuben in the South Pacific Ocean. view more

Credit: Image Credit: NASA Goddard MODIS Rapid Response Team

Tropical Cyclone Reuben formed on Sunday, March 21 at 22:35 UTC in the Northwestern Pacific Ocean and by March 23 was already dissipating. NASA's Aqua satellite passed over Reuben when it was in the prime of its life on March 22.

The twentieth tropical cyclone (20P) of the South Pacific Ocean season formed southeast of Fiji and quickly strengthened into Tropical Storm Reuben. Reuben moved south and intensified to 45 knots (51.7 mph/83.3 kph) before running into vertical wind shear that quickly weakened the storm.

On March 22 at 21:50 UTC (5:50 p.m. EDT), the MODIS instrument aboard NASA's Terra satellite captured a visible image of Tropical Cyclone Reuben in the South Pacific Ocean. The image showed strong thunderstorms around the center, and southeast of the center as a result of northwesterly wind shear.

By March 23 at 0000 UTC (March 22 at 8 p.m. EDT), the Joint Typhoon Warning Center issued their final bulletin on Reuben. At that time, Reuben was centered near 26.8 south latitude and 173.5 west longitude, about 688 nautical miles southeast of Suva, Fiji. Reuben's maximum sustained winds were near 35 knots (40 mph/62 kph), and waning. Reuben was moving to the southeast at 7 knots * mph/12.9 kph).

Reuben is expected to dissipate in the next day or two.

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Nebraska's Fifth Annual NanoDays In Lincoln

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Nebraskas fifth annual NanoDays will take place March 28, 1 4 p.m. in Lincoln at Gateway Mall: 60th and O Streets.

NanoDays is a nationwide festival of educational programs about nanoscale science and engineering.

Nanoscientists transform our world with materials smaller than the eye can see, and at NanoDays, 10 interactive demonstrations and three games will introduce attendees to the magic-like properties of nanomaterials.

The first 100 student attendees who visit each of the free stations will receive an I Heart Nano t-shirt, and the elementary school and middle school with the most attendees will win a nanoscience education kit.

At NanoDays, University of Nebraska-Lincoln faculty, staff, and students along with local science educators offer fun learning experiences for both children and adults. Event demonstrations show how researchers use the miniscule world of atoms, molecules and nanoscale forces to invent many exciting technologies such as the invisibility cloak and floor tiles that generate electricity when walked on.

The event is co-hosted by Nebraska EPSCoR, the University of Nebraskas Materials Research Science and Engineering Center (MRSEC) and the Nebraska Center for Materials and Nanoscience (NCMN).

NanoDays is organized by the Nanoscale Informal Science Education Network (NISE Net), and takes place nationally from March 28 through April 4, 2015. This community-based event is the largest public outreach effort in nanoscale informal science education and involves science museums, research centers, and universities from Puerto Rico to Alaska.

Research at a nano level is done in many areas including physics, chemistry, material sciences, engineering, biology, and medicine.

Nanoscientists study and make new applications that improve computers, medical treatments, energy efficiency and more. The Materials Research Science and Engineering Center (MRSEC) and the Nebraska Center for Materials and Nanoscience (NCMN) are on the forefront of research in one of the highest-priority national programs, the National Nanotechnology Initiative.

For more information about NanoDays or nanoscience, visit http://bit.ly/nenano15.

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Nebraska's Fifth Annual NanoDays In Lincoln

Genomewide Screen of Learning in Zebrafish Identifies Enzyme Important in Neural Circuit

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Newswise PHILADELPHIA - Researchers at the Perelman School of Medicine at the University of Pennsylvania describe the first set of genes important in learning in a zebrafish model in the journal Neuron this week. Using an in-depth analysis of one of these genes, we have already revealed an important relevant signaling pathway, says senior author Michael Granato, PhD, a professor of Cell and Developmental Biology. The proteins in this pathway could provide new insights into the development of novel pharmacological targets.

Over the last 20 years, zebrafish have become great models for studying development and disease. Like humans, zebrafish are vertebrates and over 80 percent of human genes bearing disease descriptions are also present in zebrafish. As such, this animal model has become increasingly popular to study human diseases such as cardiovascular conditions or tumor formation.

Zebrafish have also become an ideal model for studying vertebrate neuroscience and behavior. In fact, Granato developed the first high-throughput behavioral assays that measure learning and memory in fish. Normal fish startle with changes in noise and light level by bending and swimming away from the annoying stimuli. They do eventually habituate and get used to the alterations in their environment, he explains. However, fish mutants fail to habituate -- they never get used to their surroundings and always flinch at the loud noises.

In nature, this startle response is important for avoiding predators, but is flexible in how the fish use it in different situations, notes first author Marc A. Wolman, PhD, a postdoctoral fellow in the Granato lab who is now an assistant professor at the University of Wisconsin. Past data from the Granato lab indicate that learning and memory defects are reversible with acute pharmacologic treatments and are therefore not hard-wired, as might be expected for a defect in the development of nerves. Habituation represents a fundamental form of learning, yet the underlying molecular genetic mechanisms are not well defined. In humans, deficits in habituation are associated with a variety of neuropsychiatric disorders, including schizophrenia, autism, Tourettes, and obsessive-compulsive disorder.

Years in the Making To find these genetic needles in the chromosome haystack, the team started four years ago by introducing small, point mutations into the zebrafish DNA. These are changes that affect only one or two DNA building blocks at a time. They then bred mutant fish for three generations to obtain fish whose genomes contain two copies of a mutant gene. These mutants were then exposed to the startle response test. Using a camera and software to eliminate human observer bias, they recorded how the mutants reacted to a loud noise. Most fish larvae habituated and stopped reacting to the noise stimulus. Some of the mutants, did, however, fail to habituate and continued to respond to the noise.

A genome-wide genetic screen, coupled with whole genome sequencing, identified 14 different mutations in zebrafish that failed to habituate. One of these 14 contained a mutation in the vertebrate-specific gene pregnancy-associated plasma protein-aa (pappaa). This gene encodes an enzyme that cleaves other proteins and works outside the cell. It is known to increase the availability of the hormone IGF at the cell surface, thereby enhancing receptor signaling for the IGF pathway. (A role of the PAPPAA enzyme in or on neurons had not been described; however, IGF is known to be an important molecule in pathways that determine long-term memory.)

At first we didnt think it was important in learning, but we found that pappaa is expressed by startle-circuit neurons, explains Granato. The team verified the involvement of the IGF pathway by rescuing mutant behavior to normal by adding an activator of downstream molecules that interact with the IGF receptor. Mutants that were treated this way, when put back in the startle test, reacted normally and habituated to the loud noise. Also, when the team used an inhibitor of the IGF receptor in normal zebrafish larvae, these fish showed the same behavior in the startle test as the pappaa mutants. This all indicates that the pappaa gene promotes learning by acutely and locally increasing IGF availability to the cell.

Our experiments found the first functional gene set for habituation learning in a vertebrate and identify PAPPAA-regulated IGF signaling as a novel mechanism regulating this type of behavior, says Granato. A mammal pappaa gene exists but its function is as yet unknown. In future studies we hope to capitalize on the identification of pappaa and the other 13 genes we isolated to identify pharmacological treatments that enhance learning and memory.

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Genomewide Screen of Learning in Zebrafish Identifies Enzyme Important in Neural Circuit

Music Festival Fans Give Kanye West Taste Of His Own Medicine – Video

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Music Festival Fans Give Kanye West Taste Of His Own Medicine
"Kanye West was announced earlier this week as one of the headliners at this summer #39;s Glastonbury music festival, but some music fans aren #39;t happy about it. One festival-goer started a petition...

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Music Festival Fans Give Kanye West Taste Of His Own Medicine - Video

Welcome to Northumberland Institute of Dental Medicine – Video

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Welcome to Northumberland Institute of Dental Medicine
Located in the heart of Ballsbridge in Dublin 4, our dental clinic has been offering quality long-term dental care and specialist dentistry for over 25 years. Our ethos is to provide top quality...

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Nurse appointed interim CEO of Nebraska Medicine

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Nebraska Medicine's advisory board has selected Rosanna Morris as interim CEO of the health care system.

Morris, a registered nurse, has been with the organization for seven years. During that time, she served as the system chief nursing officer, and in January 2014 added the responsibilities of chief operating officer for the Nebraska Medical Center campus.

Morris replaces Bill Dinsmoor, who retired March 3.

In taking this interim role, she becomes the first female Hispanic CEO of a major health care system in the region. She is also the first nurse to serve as CEO at Nebraska Medicine or any of its affiliated partners.

"The Board saw in Rosanna a strong leader with an excellent reputation for achieving results while keeping the care and safety of our patients at the forefront of all we do," said UNMC Chancellor and Nebraska Medicine Advisory Board Chair Jeffrey P. Gold, MD.

"Nebraska Medicine's legacy, history and commitment to fulfilling its mission day in and day out are through the hands of its people," says Morris. "To be in a role where I represent them and help to make decisions on their behalf, so that we can continue to take care of our patients, their families and serve our community, is no small task but one that I feel privileged and honored to have accepted."

"Ive known and worked with Rosanna for more than seven years," says retiring CEO Bill Dinsmoor. "She is a compassionate leader who has demonstrated her commitment to delivering our brand promise of Serious Medicine. Extraordinary Care. Her skills and experience make her the right person to partner with Dr. Britigan to provide our organization with strong and focused leadership during this time of tremendous change and opportunity."

As a national search for Nebraska Medicine's permanent CEO begins, Morris will work closely with interim President Brad Britigan, MD, who also serves as dean of UNMC's College of Medicine.

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Nurse appointed interim CEO of Nebraska Medicine

Penn Medicine Experts Offer Suggestions for Nudging Children toward Healthier Food Choices

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Newswise PHILADELPHIA Strategies aimed at reducing childhood obesity should acknowledge individuals rational taste preferences and apply insights from behavioral economics to design choice architecture that increases their likelihood of success, say two physician-scientists from the Perelman School of Medicine at the University of Pennsylvania and the Center for Health Incentives and Behavioral Economics in an editorial published in JAMA Pediatrics.

Noting that almost one-third of children in the United States are overweight or obese, a level that has not improved over the past decade, the editorial authors outline three strategies for using behavioral economics (which recognizes that individuals behave irrationally when making decisions, but often in predictable manners) and choice architecture (which applies insights from behavioral economics to real-life scenarios) to change behaviors related to food choice. The editorial, co-written by Mitesh S. Patel, MD, MBA, MS, assistant professor, and Kevin G. Volpp, MD, PhD, professor, both of Medicine and Health Care Management at Penn, accompanies an article on a study using a clinical trial to test interventions to change students food choices at school.

The results of this study highlight that the design of food choices can significantly influence behavior, said Patel. Lessons from this intervention in school cafeterias could be applied more broadly in settings that impact both children and adults.

First, school leaders and dieticians should recognize the fact that children (and adults) are behaving rationally when they choose foods that taste better. Accepting this reality, the authors point to efforts to make school-based meals more palatable but still healthy through collaborations with professional chefs, such as First Lady Michelle Obamas Chefs Move to Schools program. They note research findings showing that chef involvement increases the consumption of healthier foods by children.

Next, default (or opt out) options should be used to steer children to healthier food choices and portion sizes. For example, in a cafeteria self-service food line, placing fruit and vegetables at the front of the line when plates are relatively empty was found to increase consumption of these foods. (It is a marketing truism that placing certain guilty pleasure items near the cashier increases impulse buying, but this usually involves cases of immediate gratification, such as candy, and less so foods that lead to longer-term health benefits.)

Third, making food information more appealingly and health benefits more understandable to children may lead to healthier food choices. The authors suggest that nutritional value might better be displayed using a color-coded scheme that is easily relatable, such as that of a traffic light, to help children easily choose which foods to eat and which to avoid. The authors also cite previous research indicating that rewards of as little as 25 cents per day have led to a doubling in consumption of fruits and vegetables, even after the intervention period ended.

Lessons from behavioral economics could be used to develop interventions that help build better eating habits, said Volpp. Default options, information framing and incentives are a few areas that show promise and should continue to be evaluated in future studies. The Penn-authored JAMA Pediatrics editorial is in reference to Effects of choice architecture and chef-enhanced meals on the selection and consumption of healthier school foods: a randomized clinical trial by Cohen et al, also published in the current issue of JAMA Pediatrics.

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Corruption and Nepotism – Honest Medical School Admission Guide #2 (2015) – Video

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Corruption and Nepotism - Honest Medical School Admission Guide #2 (2015)
Full Medical School Admission playlist in order: http://med.coursegrinder.com A general overview of the most frustrating thing you will encounter in your journey to medical school. Although...

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