Synopsis: Education: School:

and advanced laboratory techniques gave scientists an unprecedented opportunity to study the meteor that exploded over Chelyabinsk Russia in February. f humanity does not want to go the way of the dinosaurs we need to study an event like this in detailsays Qing-zhu Yin professor

The largest single piece weighing about 650 kilograms was recovered from the bed of Lake Chebarkul in October by a team from Ural Federal University led by Professor Viktor Grokhovsky.

and isotopic analysis of the meteorites and Ken Verosub professor in the department of earth and planetary sciences measured the magnetic properties of metallic grains in the meteorite.

and out of cellssays Sebastien Perrier professor at the University of Warwick. uch of this work is done by channel proteins for example in our nervous system where they modulate electrical signals by gating the flow of ions across the cell membranehe says.

And scientists say this may help explain why honey bee populations are declining. e usually think of animals chemical signals (called pheromones) as communication systems that convey only very simple sorts of informationsays Christina Grozinger professor of entomology

Once heated the solvent evaporates leaving behind only a high-quality film of crystalline semiconductor##perfect for use in electronics. t s inexpensive and easily scalablesays Richard Brutchey a chemistry professor at the University of Southern

however that when you shine light on them the electron takes off in one particular direction without having to cross from one material to anothersays Andrew M. Rappe professor of chemistry

professor of materials science and engineering at Drexel University. ut adding just 10 percent of the barium nickel niobate moves the bandgap into the visible range

LED lightingâ##allowing for brighter more efficient lights. hese guidelines should permit the discovery of new and improved phosphors in a rational rather than trial-and-error mannersays Ram Seshadri a professor in the department of materials at University

The results of this research performed jointly with materials professor Steven Denbaars and postdoctoral associate researcher Jakoah Brgoch appear in The Journal of Physical chemistry C. LED (light-emitting diode) lighting has been a major topic of research due to the many benefits it offers over traditional incandescent or fluorescent lighting.

According to Seshadri all of the recent advances in solid-state lighting have come from devices based on gallium nitride LEDS a technology that is largely credited to UC Santa barbara materials professor Shuji Nakamura who invented the first high-brightness

or 300 lumens per wattsays Denbaars who also is a professor of electrical and computer engineering and co-director of the Solid State Lighting & Energy Center.

MKIDS were developed first a decade ago by Mazin his Ph d. adviser Jonas Zmuidzinas professor of physics at the California Institute of technology and Henry Leduc at NASA s Jet propulsion laboratory.

Undergraduate engineering student Allen Hawkes working with graduate student Alexander Katko and lead investigator Steven Cummer professor of electrical and computer engineering designed an electrical circuit capable of harvesting microwaves.

while the other region pushes the water backwardsays Eric Fortune a professor of biological sciences at the New jersey Institute of technology who was a co-author of the paper. his arrangement is rather counter-intuitive like two propellers fighting against each other. f the fish wants to move forward

I think about animals as incredible living robotssays lead author Shahin Sefati a doctoral student advised by Cowan. t has taken several years of exciting multidisciplinary research during my Phd studies to understand these robots better. he National Science Foundation

In a study published in the journal Science chemists describe a key step in assembling a hydrogen-generating catalyst. t s pretty interesting that bacteria can do thissays David Britt professor of chemistry at University of California Davis

That work will be published separately. ogether these results show how to make this interesting two-cluster enzymebritt says. his is unique new chemistry. ames Swartz professor of chemical engineering

and low-cost energy storage materials and lithium sulfur batteries are one of the most promising candidatessays Weidong Zhou a former postdoctoral researcher in Professor Hector Abruã a s lab at Cornell

Lithium-sulfur batteries could potentially offer about five times the energy density of today s typically used lithium-ion batteriessays Yingchao Yu a Phd student with Abruã a

and a former Phd student in the lab of Francis Disalvo paper co-author and professor of chemistry and chemical biology. s an additive it greatly improves the cycling stability of the battery. n another approach to improving lithium-sulfur battery durability the researchers also report a new way

to make lithium-sulfur cathodes by synthesizing a nanocomposite consisting of sulfur coated with a common inexpensive conductive polymer called polyaniline and

The new system is based on a sonar concept called twin inverted pulse sonar (TWIPS) developed by Tim Leighton professor from the University of Southamptonâ#Institute of Sound and Vibration research.

what people have been using for decadessays Darrell Schlom professor of industrial chemistry at Cornell University who led the international research team. hat we have discovered is the world's lowest-loss tunable dielectric. ossrefers to wasted energy

(1400 C). his is a record performance in terms of thermal stability and a major advance for the field of thermophotovoltaicssays Shanhui Fan a professor of electrical engineering at Stanford university.

but in practice they don t achieve thatsays study co-author Paul Braun a professor of materials science at Illinois. hat s

and his colleagues at Stanford who confirmed that devices were still capable of producing infrared light waves that are ideal for running solar cells. hese results are unprecedentedsays former Illinois graduate student Kevin Arpin the lead author of the study. e demonstrated for the first time that ceramics

and bring the brains of people suffering from such disorders back into balancesays Gina Turrigiano a professor at Brandeis University who led the study.

and develop something that is not only a great improvement but also much cheaper for growers and others to usesays Alan Lakso professor of horticulture at Cornell University.

and linked wirelessly to computers allows growers toâ ontrol the precise moisture of blocks of land based on target goalssays Vinay Pagay who helped develop the chip as a doctoral student in Lakso s lab

The researchers led by Rice graduate student Changsheng Xiang produced thin films of the composite material by solution casting GNRS treated with hexadecane and TPU a block copolymer of polyurethane that combines hard and soft materials.

and debris that has been pulled into the orbit of its dying parent starâ#says Boris Gänsicke professor of physics at the University of Warwick. owever this planetary graveyard swirling around the embers of its parent star is a rich source

The challenge for Angel Mart assistant professor of chemistry and bioengineering at Rice university and his team of student researchers was to get their large metallic particles through the much smaller pores of a zeolite cage.

to detect three distinct characteristics for each vapor a team led by graduate student Avishek Saha built a 3d plot to map the fingerprints of 17 types of solvents.

A team of researchers led by Professor Jaswinder Singh of Mcgill University s Department of Plant Science has identified a key gene that acts as a switch to determine how a particular plant will respond to high humidity

versus PHS susceptible varieties of wheat. his discovery is important for other cereals like barley as well as for wheatsays Surinder Singh a doctoral student

and one of the authors of the study currently working in Professor Singh s laboratory. his means that not only should we be able to avoid the ugly bread

and they stand up to such ultrahigh temperaturessays Pulickel Ajayan professor of mechanical engineering and materials science and of chemistry. t a few nanometers wide they'##re a totally noninvasive coating.

Stanford applied physics Professor Robert Byer the principal investigator for this research. Today s accelerators use microwaves to boost the energy of electrons.

The study s lead authors were Stanford graduate students Edgar Peralta and Ken Soong. Additional contributors included researchers from the University of California-Los angeles and Tech-X Corp. in Boulder Colo.

in optical resonators the pitch corresponds to the color or wavelength of the lightsays Kerry Vahala professor of information science and technology and applied physics at the California Institute of technology (Caltech.

Here is the proof. xperts say the achievement will galvanize efforts to find successors to silicon chips which could soon encounter physical limits that might prevent them from delivering smaller faster cheaper electronic devices. arbon nanotubes CNTS have long been considered as a potential successor to the silicon transistorsays Professor

Professor Giovanni De Micheli director of the Institute of Electrical engineering at Ã#cole Polytechnique FÃ dã rale de Lausanne in Switzerland highlighted two key contributions the Stanford

In a demonstration of its potential the researchers also showed that the CNT COMPUTER could run MIPS a commercial instruction set developed in the early 1980s by then Stanford engineering professor and now university President John Hennessy.

Though it could take years to mature the Stanford approach points toward the possibility of industrial-scale production of carbon nanotube semiconductors according to Naresh Shanbhag a professor at the University of Illinois at Urbana-Champaign

The National Science Foundation SONIC the Stanford Graduate Fellowship and the Hertz Foundation Fellowship funded the work.

and because cell walls are very complex says Mei Hong one of the project s lead researchers a professor of chemistry at Iowa State university.

and thus better harvest bioenergy. ong and Daniel Cosgrove professor and chair in biology at Penn State are the lead authors.

and produce electricity that is captured by the battery s positive electrode. e call it fishing for electronssays Craig Criddle a professor in the department of civil and environmental engineering at Stanford university.

but there are significant challenges in achieving true nanoscale dimension. ur work demonstrates that processes of polymer self-assembly can provide a way around this limitationsays John Rogers professor of materials science and engineering at University of Illinois at Urbana-Champaign.

under Paul Nealey now professor of molecular engineering at the University of Chicago and a co-author of the paper in Nature Nanotechnology. his concept turned out to be really usefulrogers says.

The resolution of the chemical pattern nears the current limit of traditional photolithography notes Lance Williamson a graduate student in molecular engineering at University of Chicago

and that the ocean biosphere can recover from even the most dramatic ecological changes says second author Daniel Sigman professor of geological

Douglas Capone a professor and chair of biological sciences at the University of Southern California says that the research is notable both for understanding the nitrogen cycle

but can actually create it from scratchsays Joseph Heitman the study s senior author and professor and chair of molecular genetics and microbiology at the Duke university School of medicine.

and his colleagues former fellow Min Ni and current graduate student Marianna Feretzaki grew the microbe in two different ways,

Just two atoms in thickness the glass was an accidental discovery says David A. Muller professor of applied

Julia R. Greer professor of materials science and mechanics at the California Institute of technology (Caltech) says the work was inspired by earlier work to fabricate extremely lightweight microtrusses. e designed architectures with building blocks that are less than five microns

In an advance online publication of the journal Nature Materials Greer and her students describe how the new structures were made

and their belongings quicklysays Marcos Dantus chemistry professor at Michigan State university. ot only does it detect the explosive material

The research has been led by Professor Mark Mon-Williams and Liam Hill at the University of Leeds in partnership with the Bradford Institute for Health Research and colleagues at the University of Indiana. n trying to support a child with handwriting

or in the classroom setting under the supervision of a single overseeing professional. esearchers carried out the first United kingdom pilot of the device with a small number of five-to seven-year-old children with a wide range of manual abilities.

Differences in performance between children previously identified by their classroom teachers as having handwriting difficulties were also noticeable.

and pesticides says team member Gwyn Beattie a professor of plant pathology and bacteriology at Iowa State university.

or female says Peter Koopman a professor from the University of Queensland s Institute for Molecular Bioscience. ost mammals including humans

but it turned up in an earlier survey of genes involved in leaf senesce says Su-Sheng Gan professor of horticulture at Cornell University.

and brain region associated with sleep-enhanced learning of a finger-tapping task akin to typing

Scientists have shown that sleep improves many kinds of learning including the kind of sequential finger-tapping motor tasks addressed in the study

It s an intensive activity for the brain to consolidate learning and so the brain may benefit from sleep perhaps

and their team asked each of their 15 subjects to volunteer for the motor learning experiments.

Visual learning next? In all the experimenters tracked five different oscillation frequencies in eight brain regions (four distinct regions on each of the brain s two sides.

since a project to further study how the brain consolidates learning. In this case they re looking at visual learning tasks.#

#Will we see similar effects?##Sasaki asks.##Would it be with similar frequency bands and a similar organization of neighboring brain areas?#

In this case the retrovirus effect was to trigger an accumulation of a green-blue bile pigment called biliverdin in the eggshell as the egg develops in the hen.

#Rare breedsprofessor Olivier Hanotte initiated the work after becoming curious about blue eggs on a trip to Brazil where he met Professor Jos##Antonio Alcalde a co-author of the paper.#

This is the first study to offer an unbiased profile of novel imprinted genes in a mammal other than mice says lead author Xu Wang a postdoctoral associate in the laboratory of senior author Andrew Clark professor

and Yanhui Zhao, graduate student in engineering science and mechanics at Penn State, fabricated the materials. The National institutes of health, the National Science Foundation,

#This system should enable a new set of precision microsensors capable of beating standard limits set by quantum mechanics#says Oskar Painter a professor of applied physics at Caltech

#We work with a material that s very plain in terms of its optical properties#says Amir Safavi-Naeini a graduate student in Painter s group

Recent discoveries by planetary geoscientists at Brown and elsewhere have shown that the climate of Mars has varied in the past says James W. Head professor of geological science at Brown University.

In the scenario Head and graduate student David Kutai Weiss describe in the journal Geophysical Research Letters the impact blasts through the ice layer spitting rock and other ejecta out onto the surrounding ice.

Dan Li a materials engineering professor at Monash University and his team created a supercapacitor with energy density of 60 watt-hours per liter#comparable to lead-acid batteries and around 12 times higher than commercially available supercapacitors.#

Scary robotporfiri and Macri along with students Valentina Cianca and Tiziana Bartolini hypothesized that robots could be used to induce fear as well as affinity

says Changhuei Yang, professor of electrical engineering, bioengineering and medical engineering at the California Institute of technology (Caltech).

The National Science Foundation Graduate Research Fellowship the National Institute of General Medical sciences Centers of Excellence the National institutes of health the James S. Mcdonnell Foundation the Alfred P. Sloan

which is full of surprises#says Chang Kee Jung professor of physics at Stony Brook University and international co-spokesperson for the T2k Collaboration.#

The experiment shows that researchers can now accurately observe the type of neutrino oscillation that will need to be studied in detail in future experiments aiming to measure CP violation explains Steven Manly professor of physics at the University of Rochester and part of the collaboration.

says Alex Limpaecher, a Ph d. student in Carnegie mellon University computer science department. Adrien Treuille, associate professor of computer science and robotics, says the drawing assistance app is just one example of how Big data can be used to enhance drawing

The databases also might be used to create teaching tools to improve the artistic techniques of students,

In addition to Treuille, the other team members were Nicholas Feltman, a Ph d. student in computer science, and Michael Cohen, principal researcher in Microsoft Research Interactive Visual Media Group.

Solar steam efficiency comes from light-harvesting nanoparticles that were created at LANP by Rice graduate student Oara Neumann,

or implanted as components of new biomedical technologies says Robert Hurt an engineering professor and one of the study s authors.

Huajian Gao professor of engineering tried to explain those results using powerful computer simulations but he ran into a problem.

Other contributors to the study were Brown graduate students Yinfeng Li (now a professor at Shanghai Jiao Tong University) Hongyan Yuan and Megan Creighton.

Shivendra S. Panwar professor of electrical and computer engineering the Polytechnic institute of New york University and the lead developer of streamloading estimates that the technique could remove as much as 75 percent of the streaming content from increasingly overloaded cellular wireless networks

#Panwar along with a team of students who have been working on the prototype technology designed streamloading to be compatible with current digital rights management (DRM) protocols.

#Making the male listenin the new paper Johnson s group led by third-year graduate student Alexander Leydon sought to discover what convinces the male pollen tubes to stop growing

says George Loewenstein, professor of economics and psychology. For the study, 10 actors were scanned at the Scientific Imaging & Brain Research center while viewing the words of nine emotions:

different people tend to neurally encode emotions in remarkably similar ways, notes Amanda Markey, a graduate student in the department of social and decision sciences.

professor of psychology, director of the university Center for Cognitive Brain imaging, and neuroscientist, explains, e found that three main organizing factors underpinned the emotion neural signatures, namely the positive or negative valence of the emotion, its intensityild or strong,

professor of mechanical engineering at Columbia University, who led the study with Jeffrey Kysar, professor of mechanical engineering. ut defect-free,

It is surprising to have large potentially complex fossils that far back says Christopher H. House professor of geosciences at Penn State

#There is not enough fly ash in this world to replace half of the Portland cement being used#says Paulo Monteiro professor of civil and environmental engineering.#

we use the hurricane to take us places#says Kamran Mohseni professor in the department of mechanical and aerospace engineering and the department of electrical and computer engineering at the University of Florida.

or carpets#says lead researcher Miriam Rafailovich professor of materials science and engineering and co-director in the program of chemical and molecular engineering at Stony Brook University.

Successful tests were performed using live bed bugs and termites in Rafailovich#s lab with the assistance of Ying Liu a scientist with the Advanced Energy Research and Technology Center and graduate students Shan He and Linxi Zhang.

and now it s time we think about how to put these lasers into practice#says physicist Na Young Kim a member of the Stanford university team which was led by Yoshihisa Yamamoto professor of electrical engineering and of applied physics.#

which served to damp these small-scale variations revealing the dominant large-scale pattern#says co-author Steve Tobias professor at the University of Leeds#School of Mathematics.

and huge supercomputers shows how complicated the dynamo process really is#says Professor Fausto Cattaneo of the University of Chicago#s department of astronomy and astrophysics.

which means it uses a projector similar to those found in those bulky classroom machines.

Developed by chemistry professor Timothy Swager, each sensor utilizes an array of tens of thousands of carbon nanotubes,

LANP graduate student Bob Zheng set out to create a photonic system that could detect colored light but in what lab director Naomi Halas calls a great example of the serendipity that can occur in the lab he wound up with a device with far broader applications.

Designed and created in around six months in the lab of Howie Choset, a professor in CMU's Robotics Institute,

and dispose of nanoparticles says the study's lead author Professor Michael Aviram. Products that use silica-based nanoparticles for biomedical uses such as various chips drug or gene delivery and tracking imaging ultrasound therapy and diagnostics may also pose an increased cardiovascular

"says Northeastern University Distinguished Professor Kim Lewis, lead author of the paper outlining the discovery."

Professor Sun Xiaowei and colleagues at NTU have developed a self-powered smart window that is bi-functional.

from left to right,"says Professor Ulrich Schmid of TU Vienna.""During that movement the laser intensity is modulated

"says Jörg Reitterer of Trilite Technologies and Phd-student in the team of Professor Schmid."

Voxel8 a Harvard spin-off founded by professor Jennifer Lewis has designed a new ink that replaces carbon with highly conductive silver particles

#Polymer gel that stores light energy A team led by Nicolas Giuseppone, professor at the Université de Strasbourg,

University of Illinois researchers and colleagues in South korea led by U. of I. electrical and computer engineering senior research scientist Hyungsoo Choi and professor Kyekyoon#Kevin#Kim published details about the gelatin

Illinois professor Kyekyoon#Kevin#Kim graduate student Elizabeth Joachim and researchscientist Hyungsoo Choi developed tiny gelatin nanoparticles that can carry medicationto the brain which could lead to longer

who is professor of pharmacological and physiological sciences at SLU, demonstrated that turning on a receptor in the brain

College students visit the hall and don blue 3-D glasses for ementia Experiencevideo journeys following people disoriented on streets or seeking bathrooms.

Students as Helpers Schools offer community service credit, encouraging work with dementia patients, whom students call grandmas and grandpas.

Teenage girls do foot massage at the Cheongam nursing home, which is run by Mrs. Lee, the Alzheimer Association president,

A boyshigh school selects top students to help at Seobu Nursing Center, doing art therapy

another student said. ome of us look like we don want to do this. For Kim Han-bit, 16, the program is intensely personal.

The floor was awash in the flotsam of three freshmen clothes, backpacks, homework, packages of Chips Ahoy and Cap Crunch Crunch Berries.

The University of Florida broadcasts and archives Dr. Rush lectures less for the convenience of sleepy students like Mr. Patel than for a simple principle of economics:

Students on this scenic campus of stately oaks rarely meet classmates in these courses. Online education is known best for serving older,

nontraditional students who can not travel to colleges because of jobs and family. But the same technologies of istance learningare now finding their way onto brick-and-mortar campuses,

resident students are earning 12 percent of their credit hours online this semester, a figure expected to grow to 25 percent in five years.

when your professor is a mass of pixels whom you never meet? How much of a student education and growth academic and personal depends on face-to-face contact with instructors and fellow students?

hen I look back, I think it took away from my freshman year, said Kaitlyn Hartsock,

4. 6 million students took a college-level online course during fall 2008, up 17 percent from a year earlier, according to the Sloan Survey of Online learning.

belying the popular notion that most online students live far from campuses, said Jeff Seaman, co-director of the survey.

families paying $53, 000 a year demand low student-faculty ratios. Colleges and universities that have plunged into the online field,

mostly public, cite their dual missions to serve as many students as possible while remaining affordable,

At the University of North carolina at Chapel hill, first-year Spanish students are offered no longer a face-to-face class;

despite internal research showing that online students do slightly less well in grammar and speaking. ou have X amount of money,

if you look at national graduation rates, he added. t the very least we should be experimenting with other modes of delivery of education.

A sampling of Florida professors teaching online found both enthusiasm and doubts. would prefer to teach classes of 50

and know every student name, but that not where we are financially and space-wise,

who teaches statistics to 1, 650 students. She said an advantage of the Internet is that students can stop the lecture

and rewind when they do not understand something. Ilan Shrira, who teaches developmental psychology to 300,

said that he chose his field because of the passion of a professor who taught him as an undergraduate.

so by an online course Kristin Joos built interactivity into her Principles of Sociology course to keep students engaged.

and students join a virtual classroom once a week using a conferencing software called Wiziq. i, everyone, welcome to Week 9. Hello!

Dr. Joos said in a peppy voice recently to about 60 students who had logged on.

She asked students for their own definitions. One, bringing an online-chat sensibility to an academic discussion

A hardworking student who maintains an A average, she was frustrated by the online format. Other members of her discussion group were not pulling their weight,

#Student in Kenya Invents Solar Powered Forest fire Detector Efforts to curb forest loss around the world as a means of cutting carbon emissions just got a boost:

A Kenyan student has invented a device to automatically detect forest fire outbreaks. The technology, produced by Pascal Katana, a 24-year-old University of Nairobi engineering student,

uses heat sensors to detect a fire, then automatically relays the information to a forest station through mobile phone technology. he heat sensors are programmed to detect temperatures which are over 45 degrees Celsius,

the electrical and electronics engineering student said, calling it a lug and playdevice. The device still has to go through a vetting

< Back - Next >

Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011