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Further plant community dynamics can be disrupted by changed feeding patterns in the iguanas. Dr Knapp says The complete restriction of feeding by tourists may not be a realistic option.
Onuchic and his colleagues at the Center for Theoretical Biological Physics based at Rice's Bioscience Research Collaborative are working to fix that.
This information guides the physics-based simulation toward functional conformations that have been conserved through evolution. Simulations at Rice that combined DCA and structural data revealed competing residue contacts that were unique to configurations of proteins with multiple conformations
Climate Dynamics doi: 10.1007/s00382-01-1714-z; Jacob D. et al. 2013 EURO-CORDEX: New high-resolution climate change projections for European impact research Regional Environmental change doi:
the Physical science Basis'of the IPCC Fifth Assessment Report was presented on 27 september 2013 following the adoption of the Summary for Policymakers. 4 ARPEGE-Climat developed by CNRM-GAME
Rohani and colleagues say that such a phenomenon has recently been observed in controlled badger culls in the United kingdom where disruption of badger social dynamics and subsequent dispersal led to increased tuberculosis transmission in cattle at neighboring sites.
but as you make the gap larger the system turns to classical physics. By small Nordlander means well below a single nanometer (a billionth of a meter.
Rice alumnus Emil Prodan an assistant professor of physics at Yeshiva University New york is co-author of Quantum Plasmonics:
The changes in ruminal lipid metabolism are based on the differences between plant species in terms of digestion kinetics and microbial flora in the rumen.
Dynamics from local to regional to global scale are quantified. For example subtropical forests were found to have the highest rates of change largely due to intensive forestry land uses.
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The science instrument was built by the Space Dynamics Laboratory in Logan Utah. The spacecraft was built by Ball aerospace & Technologies Corp. in Boulder Colo.
The infection dynamics of the BRSV virus was studied in 134 randomly selected Norwegian dairy herds.
and thus represent the only direct archive of the composition of the past atmosphere says Hubertus Fischer an experimental climate physics professor at the University of Bern in Switzerland
#Chickens to benefit from biofuels bonanzachickens could be unexpected the beneficiaries of the growing biofuels industry feeding on proteins retrieved from the fermenters used to brew bioethanol thanks to research supported by the Engineering and Physical sciences Research Council (EPSRC.
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and soil nitrogen dynamics (in annual strawberry production) under the environmental conditions and current grower management practices of the central coast region of California said corresponding author Timothy Hartz.
but peakingin a 3-meter diameter hollow aluminum sphere Cary Forest a University of Wisconsin-Madison physics professor is stirring and heating plasmas to 500000 degrees Fahrenheit
and Atmospheric administration's Geophysical Fluid and Dynamics Laboratory (GFDL) to simulate how carbon and climate interacted with vegetation soil and marine ecosystems between 1861 and 2005.
For films with no GNRS the pressure dropped to zero in about 100 seconds as nitrogen escaped into the vacuum chamber.
or decreases in consumption will affect forest cover dynamics in time. Not every outcome was predictable to us before we had this model especially the case of the'false forest transition'.
and allow us to reconstruct the population dynamics of these species during the end of the last Ice age in the southeastern U s. This may explain why three of these species were able to migrate
To understand current forest dynamics said Bond-Lamberty we have to understand their past. Older forests contain surprises for climate science and ecosystem biology.
Laser processing involves scanning a high-intensity laser beam multiple times across the surface of a metal.
Each scan by the laser beam'writes'a track in the surface which partially melts the metal.
Theoretical calculations by Guan and her co-workers described these kinetics accurately. According to the team's model a greater level of overlap provided a greater amount of heat
These dynamics occur in steep areas in particular given modern efficient land use practices cannot easily be implemented here strengthening the development leading towards future forests becoming concentrated on slopes.
Eric Zirnstein University of Alabama physics graduate student and NASA Earth and Space science Fellow in Heliophysics and May UAH doctoral graduate Brian Fayock who now does data analysis for NASA are comparing data
Both Voyager 1 and 2 have ultraviolet spectrometers that have been measuring the Lyman-alpha photons that come directly from the neutral hydrogen atoms.
which the Voyager team released recently said Zirnstein whose advisor is Dr. Jacob Heerikhuisen assistant professor of physics and assistant director of CSPAR.
and the ability to use them to probe the physics of the very local interstellar medium and its magnetic field.
The researchers report their finding in the journal Applied Physics Letters which is produced by AIP Publishing.
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The reason the pit membrane seals the cell is explained by simple physics Goodell said. When the tree is injured sap starts to flow out
and physics at Arizona State university and author of a study in Biomacromolecules that examined caddisfly silk.
Caruso and Saadawi studied unsmoked shisha as well as shisha smoke with a sensitive instrument called an inductively coupled plasma mass spectrometer.
However this finding may teach us about the dynamics at the edges of these clouds
and perturbs the physics and behavior of clouds in minutes to days; the other effect takes years
Traditional spectrometers read the wavelengths of light scattered by samples to identify materials and study their properties.
But the one-of-a-kind spectrometer developed by Zheng uses very short laser pulses to read the vibrational energies inherent to every atom.
The spectrometer reads only intramolecular interactions among vibrations and ignores interactions between molecules he said.
For example scientists have struggled to explain how different concentrations of melittin could yield such dramatically different effects said Huang Rice's Sam and Helen Worden Professor of Physics and Astronomy.
He published his work in the journal Physics of Fluids. Volcanic eruptions are an example of
He began with fluid dynamics equations and then used numerical calculations to arrive at approximate solutions for specifics combinations of source flow and spread rates and crosswind speed.
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and slow sound waves (known as surface acoustic waves or SAWS) traveling across a surface Fang says.
If acoustic waves--such as the intense shock waves from an explosion--hit the two-dimensional material at a right angle much of their energy can be converted to surface waves that travel sideways out of the material.
#Temperature alters population dynamics of common plant peststemperature-driven changes alter outbreak patterns of tea tortrix--an insect pest
While the influence of temperature on individual-level life-history traits is understood well the impact on population-level dynamics such as population cycles
and also developed an independent mathematical population model that can predict population dynamics under both constant and seasonally driven temperature regimes.
Japan used long-term data on the population dynamics of the tea tortrix that span 51 years and more than 200 outbreaks.
and the effects of temperature on individual stages and used this to predict population dynamics.
We speculated that temperature might do something to population dynamics said Bjã¸rnstad. We documented that temperature itself is destabilizing to the dynamics of this pest.
This is the first clear demonstration that temperature has the ability to alter those dynamics causing large cycles in the insect.
The researchers believe that these mechanisms have implications for what might happen faced with global warming.
They publish their study today in Earth System Dynamics a journal of the European Geosciences Union (EGU.
The new Earth System Dynamics study shows that one hectare of Jatropha curcas could capture up to 25 tonnes of atmospheric carbon dioxide per year over a 20 year period.
The newearth System Dynamics paper presents results of simulations looking into these aspects but there is still a lack of experimental data on the effects of greening arid regions.
molecular analyses to describe the genetic structure of the pests a study of the impact of temperatures on their ecology by means of drones with thermal cameras#The aim is to get a better understanding of the insects'population dynamics
Halas Rice's Stanley C. Moore Professor in Electrical and Computer Engineering professor of physics professor of chemistry and professor of biomedical engineering is one of the world's most-cited chemists.
CERN the European Organization for Nuclear Research announced in Switzerland this morning that researchers on two separate LHC experiments have succeeded in measuring one of the rarest measurable processes in physics the decay of B
But there has been the possibility it could decay through new particles predicted by dark matter theories such as supersymmetry.
Padley gave particular credit to Rice physics instructor Laria Redjimi. I worked on building the muon trigger
and computer engineering and of physics and astronomy. Many animals and insects can see polarized light
They have their very own flow dynamics. Their ice is exposed to permanent tensions and the calving of icebergs is still largely unresearched explains ice modeller Angelika Humbert.
Douglas Natelson a professor of physics and astronomy and of electrical and computer engineering and Krishna Palem the Ken and Audrey Kennedy Professor of Computer science and Electrical and Computer Engineering and a professor of statistics.
Crucial for us was to observe the natural dynamics of the chicken embryo Tammer emphasizes.
Junichiro Kono a professor of electrical and computer engineering and of physics and astronomy; and Matteo Pasquali a professor of chemical and biomolecular engineering and of chemistry.
Professor Svenning explains In the climate debate even researchers have had a tendency to overlook the fact that ecological dynamics can be slow.
Conceivable aggravation of forest decline by climate changea new type of electron microscope enabled the observation of particle deliquescence and dynamics under changing air humidity.
-and-prey dynamics that drive the carbon cycle and so protecting lands and storing carbon could be linked at the same time.
Co-authors of the paper are Rice graduate students Zhiwei Peng Changsheng Xiang Gedeng Ruan and Zheng Yan and Douglas Natelson a Rice professor of physics and astronomy and of electrical and computer engineering.
They include a very sensitive spectrometer that analyzes sunlight reflected from Earth's surface to measure atmospheric carbon dioxide methane and carbon monoxide.
The powder was placed in a mass spectrometer to learn ratios of carbon isotopes incorporated into tooth enamel via diet.
The expansion will mark Jove's eighth journal section after the recent additions of Jove Chemistry and Applied Physics.
and that includes engineers at Iowa State university who are using high-frequency sound waves to break down plant materials
since its discovery in 1986 said Jak Chakhalian professor of physics at the University of Arkansas. Unfortunately as of today we have zero theoretical understanding of the mechanism behind this enigmatic phenomenon.
In my mind the high-temperature superconductivity is the most important unsolved mystery of condensed matter physics.
An article detailing the finding Zhang-Rice physics and anomalous copper states in A-site ordered perovskites was published Monday May 13 in Scientific Reports an online journal published by the journal Nature.
Derek Meyers a doctoral student in physics at the U of A found that the way electrons form in superconductive material--known as the Zhang-Rice singlet state--was present in a chemical compound that is very different
Masahiro Ishigami an assistant professor of physics at the University of Central Florida; and Tony Heinz the D. M. Rickey Professor of Physics at Columbia University.
Ajayan is the Benjamin M. and Mary Greenwood Anderson Professor in Mechanical engineering and Materials Science and of chemistry at Rice.
the optical measurements were carried out in the Tony Heinz lab in physics. The structural modeling and electronic structure calculations were performed by the David Reichman lab in chemistry.
The electron microscopy was performed by atomic imaging experts in the David Muller lab at Cornell University's School of Applied and Engineering Physics and the Kavli Institute at Cornell for Nanoscale Science.
What is for certain is that these findings will greatly help us to understand the dynamics of emerging pathogens.
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#Exotic atoms hold clues to unsolved physics puzzle at the dawn of the universean international team of physicists has found the first direct evidence of pear shaped nuclei in exotic atoms.
or people said Tim Chupp a University of Michigan professor of physics and biomedical engineering and co-author of a paper on the work published in the May 9 issue of Nature.
What caused the matter/antimatter imbalance is one of physics'great mysteries. It's not predicted by the Standard model--the overarching theory that describes the laws of nature and the nature of matter.
The research was led by University of Liverpool Physics Professor Peter Butler. Our findings contradict some nuclear theories
The studies demonstrate how the high-density prevalence of this nonnative plant is shifting population dynamics
This means that even decades after the pastoralists move on they leave fertile footprints across the landscape that significantly alter the dynamics of the entire ecosystem.
and social-ecological dynamics in the Amazon says Marty Downs associate director of Brown University's Environmental Change Initiative.
Using a high-resolution transmission microscope in Brookhven's Condensed Matter Physics and Materials Science Department the scientists were able to observe the anchored Mosoy nanocrystals on 2d graphene sheets.
Mapping these kind of dynamics provides vital information about the diseases and how they are transmitted said Abdou Razac Boukary about his doctoral research at ITM and the University of Liã ge (Ulg).
Many of these discoveries were made at Washington University home to Ernst Zinner Phd research professor in Physics at Washington University in St louis who helped develop the instruments
The first silica grains are discovered In 2009 Christine Floss Phd research professor of physics at Washington University in St louis
and natural habitats as well as a team of park rangers enforcing conservation laws that --although they had been in place
In the development of the method a spectrometer is used to measure which wavelengths are sent back by the plants.
The campaign is addressing a broad range of science questions from the dynamics of Earth's crust and glaciers to the carbon cycle and the lives of ancient Peruvian civilizations.
It's critical to understand the population dynamics in a given area in order to make informed decisions regarding management said WCS Conservation Scientist Jon Beckmann.
They determined through molecular dynamics simulation and good old mathematical analysis that in a graphene quilt the grain boundaries act like levers that amplify the tension (through a dislocation pileup) and concentrate it at the defect either where the three domains meet or where a grain boundary between two domains ends.
Each simulation evolves the dynamics of more than 100 billion particles for more than 100000 computational time steps.
If kinship-based social dynamics were playing a critical role in these pilot whale strandings first we would expect to find that the individuals in a stranding event are in fact all related to each other.
and molecular dynamics looking back to when proteins first appeared approximately 3. 8 billion years ago to determine changes in folding speed over time.
If we mix the world of molecular dynamics with the world of molecular evolution we can then determine what aspects of sequences are important for molecular dynamics
which govern the multiphase gas-liquid-ice environment the model incorporates the dynamics and effects of thawing sap dissolving gas bubbles and an osmotic pressure gradient between two components (vessels and fibers) in the tree's nonliving vascular tissue.
Kiang associate professor of physics and astronomy and of bioengineering studies the forces involved in protein folding.
In this way we were able to study the dynamics of the molecule to see how it changed over a period of time.
Heating it up in the absence of oxygen--pyrolysis--breaks it down into smaller fragments that can be read by a molecular beam mass spectrometer.
HTAP integrates a molecular beam mass spectrometer with the pyrolysis unit to quickly determine chemical signatures (phenotypes) on small amounts of biomass samples that can be used for among other things identifying the genes controlling the chemical makeup.
Samples drop into the oven where the pyrolysis creates a vapor that is read by the mass spectrometer--a chemical fingerprint.
We put the samples in our mass spectrometer which looked at their genetic transformations and the associated cell-wall chemistry changes Davis said.
NREL's pyrolysis combined with a mass spectrometer was a big improvement over the old method of using wet chemistry to analyze
and fabricate the molecular beam mass spectrometer and Frontier Laboratories which provided the pyrolysis instrument. NREL scientists integrated the autosampler pyrolyzer
and molecular beam mass spectrometer to make HTAP. Other partners using NREL's rapid analytical tool for fuel research besides Arborgen are the University of Florida the University of Georgia Greenwood Resources the Bioenergy Science Center
and Oak ridge National Laboratory Spectrometer Reads the Chemical Fingerprints of the Samplesthe spectrometer's readings are translated into graphs that show single peaks that are easily identifiable phenotypes from
Operation Loango Prince Bernhard Wildlife Fund RAPAC The Arcus Foundation The Aspinall Foundation The Born Free Foundation The Institute for Biodiversity and Ecosystem Dynamics at The University of Amsterdam
and composition increased human wildlife conflicts new predator-prey dynamics and decreased biotic integrity (a measure of how pristine a wildlife community is).
Post said that the next step in his research will be to study the contribution of plant diversity to long-term stability of carbon dynamics in the atmosphere and in the soil.
The team looked at the dynamics of water availability to the trees by examining the ratio of oxygen isotopes in the sap contained in the tree veins that transport water.
Grants from the Biocomplexity and Human-Social Dynamics programs at the National Science Foundation supported the research.
Using information provided by this new model future studies of the ribbon could help determine the properties of the nearby galactic magnetic field opening a window into the physics of the nearby galactic medium.
which might bring in lots of new physics and chemistry especially on the nanoscale. For example 2-D boron is more conductive than graphene because of its unique electronic structure and atomic arrangement.
) This research was supported by the U s. Air force Office of Scientific research Multidisciplinary University Research Initiative by the UK Engineering and Physical sciences Research Council and through a postdoctoral research fellowship from the Alexander Von humboldt Foundation.
Famiglietti an Earth system science professor in the School of Physical sciences and colleague Min-Hui Lo a postdoctoral researcher at the University of California Center for Hydrologic Modeling who is now at National Taiwan
dynamics problem--the prediction of noise generated by a supersonic jet engine. Joseph Nichols a research associate in the center worked on the newly installed Sequoia IBM Bluegene/Q system at Lawrence Livermore National Laboratories (LLNL) funded by the Advanced Simulation and Computing (ASC) Program of the National
Because of Sequoia's impressive numbers of cores Nichols was able to show for the first time that million-core fluid dynamics simulations are possible
The physics of noisethe exhausts of high-performance aircraft at takeoff and landing are among the most powerful human-made sources of noise.
The data gleaned from these simulations are based driving computation scientific discovery as researchers uncover the physics of noise.
More cores more challengescomputational fluid dynamics (CFD) simulations like the one Nichols solved are incredibly complex.
A focused ion beam system was used later to create even finer patterns down to 100-nanometer resolution without masks.
Though intensively studied for decades until now an understanding of bark beetle population dynamics--extreme ups and downs--has remained elusive.
and for predators that eat both beetle species. The authors suggest that other pest species with catastrophic impacts may also have natural dynamics that include a tipping point between the bipolar population states.
and department chair of physics and astronomy at Rice. This is the first time anyone has arranged these four cell types in the same way that they are found in lung tissue.
The satellite data were collected by the Tropospheric Emission Spectrometer instrument on NASA's Aura spacecraft. When it comes to reducing ozone levels emission reductions in one part of the world may drive greenhouse warming more than a similar level of emission reductions elsewhere said Bowman lead author of the study published recently in the journal Geophysical Research Letters.
The model simulations are based upon actual observations of ozone warming effects measured by NASA's Tropospheric Emission Spectrometer satellite instrument.
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Extreme weather potent force for Arctic overwintering populationsclimate change is known to affect the population dynamics of single species such as reindeer
and strong climate signals in the population dynamics of herbivores are the likely explanations for how such clear climate effects can be observed at the ecosystem level.
and the role wolves may play on population dynamics. The team's next steps will be to process data to understand more about climate change impacts on this high elevation ecosystem
and you actually see a standing wave pattern he said. It's a barrier so they have to go up and over that hill.
Our results indicate a rapidly retreating coastline that cannot be accounted for by the regular dynamics of the Sundarbans.
The experimental results were reported in the Royal Society of Chemistry journal Physical chemistry Chemical Physics. The discovery Tour said could be a boon in the cleanup of contaminated sites like the Fukushima nuclear plants damaged by the 2011 earthquake and tsunami.
What is astonishing is the very fast kinetics of sorption which is key. In the probabilistic world of chemical reactions where scarce stuff (low concentrations) infrequently bumps into something with
#Physics students disprove childrens author Roald Dahls peach calculationfour students from the University of Leicester Department of physics
The physics of aircraft was applied later to calculate the number of seagulls it would have taken for the giant peach to be lifted.
The research was conducted by Emily Jane Watkinson Maria-Theresia Walach Daniel Staab and Zach Rogerson and published in the Journal of Physics Special Topics.
The project allowed the students to apply real principles of Physics to an imaginative topic
Because Physics Special Topics is run exactly like a professional journal the students get the chance to develop all the skills they will need
Schools have physics chemistry and biology laboratories to teach these subjects. The combination of Raspberry Pi and Piface creates a cheap personal laboratory for computer science that every child can own.
Overall he concluded the results of the study suggest that altered disturbance regimes rather than climate had the greatest influence on vegetation composition and dynamics in the eastern United states over multiple centuries.
Rebirth of the Elwha Riverfor rivers with fewer economic and social demands restoration guided by historical records of the natural dynamics of the river can be an effective restoration strategy say Acreman and colleagues.
In the lab you are just seeing part of the process of root growth said Bucksch who works in the group of Associate professor Joshua Weitz in the School of Biology and School of Physics at Georgia Tech.
He and researchers at the Geophysical Fluid Dynamics Laboratory (GFDL)--which is operated by the National Oceanic
This understanding will help us make better forecasts for climate as well as for the basic dynamics of forests.
This helped us understand how the dynamics of individual trees influence the stand as a whole. The growth trends at stand level are relevant for the forestry industry in terms of productivity carbon sequestration
and understand the dynamics in your system of interest which also means understanding other systems.
Giving scientists a framework to compare similar dynamics makes for more meaningful information for those developing
from now on we will have a much more detailed view of the dynamics of this ecosystem says Dusko Ehrlich.
The laws of physics are said non-negotiable Mr Jarraud. The Greenhouse Gas Bulletin provides a scientific base for decision-making.
Andreas Huth have spent the last five years using computer models to analyse ecosystems to explore the composition and dynamics of species-rich communities in tropical rainforests.
Called the Global Ecosystem Dynamics Investigation (GEDI) lidar the instrument will be the first to systematically probe the depths of the forests from space.
and models used here can be applied elsewhere to explore similar plant bed dynamics around the world.
Wildland fires involve complex interactions that include fuel distribution terrain topography chemical reactions energy transfer and the associated fluid dynamics that transport moisture gas-phase hydrocarbons air
burns to help develop models describing the chemistry and fluid dynamics of fires. His interest was sparked.
what is going to dictate the fluid dynamics in the vicinity. In turn the fluid dynamics of the air and combustible hydrocarbons as fire progresses could point the way to where the fire will spread.
The process begins with pyrolysis the thermochemical decomposition of organic material at elevated temperature Dr. Mahalingam says.
and the resulting fluid dynamics will in turn drive the fire. Continual warming of the leading edge of the fire is a necessary precondition to releasing the chemicals in the fuels that are needed to sustain it.
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