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31
May

 

A mirror in the glass – optimization of head-up display systems

 
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Well-known pilots of aircraft systems HUD HUD (HUD English for head up display) being set up also in the car. These devices project an image onto a transparent support, the windshield in a car for example, to display information without the driver having to look away from the road. Physicists at the University of Jena (Thuringia, Central-Eastern Germany) are now able to optimize this system.

To view this image, a transparent mirror mounted on the windshield reflects light beams sent through a projector and gives the driver the illusion that the information displayed is 2 meters in front of the vehicle. Currently, as stated by Prof.. Kowarschik, director of the Institute for Applied Optics at the University of Jena, “the projection surface is not transparent at 100%, which can impair vision through the glass. On the other hand, “this layer is applied on the surface of the windshield, so it can be damaged. It could for example be scratched.

Researchers have developed a photopolymer-based acrylic, which can be integrated between the two panes in a typical windshield, and thus be protected from the outside. Its thickness is 100 micrometers, or that of a human hair, and it is totally transparent. In its normal state, the photopolymer may not yet reflect the image. “That’s why we have entered, laser, matrix reflection. It allows the diffraction and reflection of light.” In addition, the chemical composition of the polymer allows a better quality of diffraction – the image will appear as well with more contrast.

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Category: Material ScienceTags: Optics, photopolymer, reflection of light, windshield
 

31
May

 

An electric car traveled 1000 km without charging its batteries

 
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The Japan Electric Vehicle Club, an association of citizens dedicated to the development of electric vehicles, managed to drive a light car with a distance exceeding 1,000 km, without making a single battery charge.

The Japanese government has made development of electric vehicles a priority to reduce emissions of greenhouse gases in the country. If electric motors have long proved that they were in no way inferior to internal combustion engines (the project Eliica Keio University has led to the build a car that reaches 370 km / h), it is regularly criticized for electric vehicles lack of autonomy. In fact, one of the cars currently sold in the trade barely exceeds 150 km.

By performing this type of demonstration, the association hopes to make people aware that the issue of autonomy can be resolved and it will be longer hinder the development of electric vehicles. The association had thus made a first trip between Tokyo and Osaka, traversing the 555.6 km separating the two cities without recharging the batteries of his Daihatsu Mira EV. However, the vagaries of traffic increasing the acceleration and braking, which results in a premature discharge of batteries. The team has decided to retry the adventure, this time on a track of 689 m in circumference Shimotsuma located in the department Ibaraki (East Tokyo).

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Category: TransportationTags: autonomy, battery charge, Daihatsu Mira EV, electric vehicles, lithium-ion batteries
 

31
May

 

The flu is not extinguished, only hidden

 
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In autumn, the flu season begins and does not end until the following spring. Although this cyclical pattern is common in temperate regions, is well known, there is still to discover the driving force that causes the problem. Now a new study explains the evolution and migration rates of influenza A (H3N2), which can be a tool to combat the disease.

Is it extinct existing strains each spring only to be replaced every fall by new strains from other parts of the world or “hidden chain disease” persists in the summer sowing the following season epidemic?

A genetic analysis by researchers at the University of Michigan, the University of Miami, the Howard Hughes Medical Institute and Florida State University and published online today in the journal PLoS Pathogens Reveals that in the U.S. not all strains of influenza was extinguished in late summer, some migrated to South America and other even further.

“The prevailing view has been developed over the past three years is the hypothesis outside the tropics, where the strains that cause mild flu season each originating in China and Southeast Asia, where influenza A is less seasonal, “says Trevor Bedford, principal investigator of the work.

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Category: Medical ScienceTags: epidemic, mathematical model, migrated
 

31
May

 

What happens when we get angry?

 
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Faced with anger, increased heart rate, blood pressure and testosterone production, reduces cortisol (stress hormone) and the left brain is more active. This suggests a new research led by scientists at the University of Valencia (UV) which looks at changes in the cardiovascular response, hormonal and asymmetric activation of the brain when we are angry.

“The induction of emotions generated profound changes in the autonomic nervous system that controls the cardiovascular response, and also in the endocrine system. In addition, changes in brain activity, especially in frontal and temporal lobes, Neus Herrero explains to SINC, Lead author and research work of the UV.

The researchers induced anger in 30 men by Spanish-language adaptation of the procedure “Anger Induction (AI), consisting of 50″ statements that reflect everyday situations that cause anger. Before and immediately after induction of anger measured heart rate and blood pressure, levels of testosterone and cortisol, asymmetric brain activation (using the technique of dichotic listening), the general mood and subjective experience the emotion of anger.

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Category: MedicineTags: anger, blood pressure, heart rate
 

31
May

 

A brain computer attract European scientists a thousand year

 
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The University of Zaragoza hosts the ZCAM, a computer brain that will attract European scientists a thousand a year. The Centre for Advanced Scientific Zaragoza Modelling (ZCAM) is the only Spanish node high performance computing and adding to the six nodes CECAM Europeans (European Centre for Atomic and Molecular Computing) for research in biomaterials through computer simulations or computer.

In fact, this high-performance scientific center and working on a project CECAM core, creating a database “on line” to help researchers in the intelligent design of drugs based on peptides, which will require the development of drugs more specific, effective and with fewer side effects.

In particular, it is the creation of the “Peptide Conformational Database (PCD), a public repository” on line “containing reference calculations in quantum chemistry peptide molecules. This database is meant to help researchers to achieve improved force fields for proteins or peptide-based drug design, among other possibilities.

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Category: Computer TechnologyTags: biomaterials, peptide-based drug, quantum chemistry
 

31
May

 

Barcelona hosts the first international congress of nanotechnology

 
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Between today and tomorrow GENNESYS held in Barcelona, the first International Congress of Nanotechnology Research and Infrastructure. More than 300 scientists, politicians and businessmen from 20 countries participating in this event with the nano world, leading Germany, USA, Japan and Spain.

The Secretary of State for Research, Philippe Petriz the President of CSIC, Rafael Rodrigo, the Director General for Research of the Generalitat, Joan Roca, and the Rector of the Autonomous University of Barcelona (UAB), Ana Ripoll, inaugurated today Barcelona the first International Congress of Nanotechnology and Infrastructure Research, GENNESYS.

At the meeting, which ends tomorrow, involving more than 300 scientific authorities, political and business personalities, from 20 countries. It is organized by the Parc de Recerca UAB, Institut de Ciencia de Materials de Barcelona (ICMAB, CSIC), the International Iberian Nanotechnology Laboratory (INL) and the German Electron Synchrotron DESY.

The purpose of the meeting is to establish a strategic collaboration between research laboratories in nanomaterials, universities, industry and European research infrastructure.

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Category: NanotechnologyTags: cross-field, misconceptions
 

31
May

 

New technologies for better feed

 
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A “nutritional counselor” for the elderly and some interactive games that help the user learn the basics of food, nutrition and balanced diet. These are two of the latest technological innovations developed by a team of researchers from the Polytechnic University of Valencia with a single goal: to help improve the diet of the population.

As the researchers explain the UPV, both the low intake of foods such as sedentary lifestyle often linked to the elderly increases the risk of malnutrition and chronic disease development, factors that negatively affect the quality of life and independence of our elders.

Given the existing problems, researchers developed the application UPV Nutritional Counselor, Which aims to alleviate the factors that negatively influence the nutrition of the elderly. This application monitors and improves the nutritional habits of elderly through an easy touch screen placed in the kitchen.

This particular “Director”, offers various services for the elderly: from weekly menus and nutrition advice tailored to their tastes so as to update your profile and health status, to a shopping list associated with the menus created, which can be printed or sent to a mobile phone, and easy recipes and preparation. All content provided to the elderly nutrition is supervised by a nutritionist, which ensures the adequacy of the advice and menus to each user.

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Category: Food ScienceTags: chronic disease, malnutrition
 

31
May

 

Flame retardant plastics create nanoscale components

 
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Nanoignifugo The project arose from the need of companies dedicated to building materials to adapt to the new Technical Building Code which entered into force in 2006. The objective was to obtain new materials Nanoignifugo phones to benefit under its classification as products and building elements according to their reaction to fire, according to European legislation provided that the new code was based.

From this point, the Technology Centre of Miranda de Ebro (ATC) in Burgos, together with the Cellmates (Cellular Materials Laboratory, Department of Physics, University of Valladolid) was raised to create polymer materials, ie plastic with flame retardants based on nanoscale components such as nanoclay, carbon nanotubes and nanofibers. In addition to fire resistance, the use of nanofillers, which are nanometer-sized particles, optimize the mechanical properties of materials, the researchers said.

The key to fire-resistant materials to suit the new rules is to use halogen-free compounds. As explained by the project coordinator Silvia Roman, “one of the main problems with most flame retardants is in its formulation containing halons to ignite release toxic gases harmful to health.”

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Category: Material ScienceTags: Carbon nanotubes, ignite, nanoclay, nanofibers, polymer materials, toxic gases
 

31
May

 

Present the first horned dinosaur described in Mexico

 
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Paleontologists at the Museum of Natural History at the University of Utah (USA) presented today Magnacuerna Coahuilaceratops, A new species of dinosaur discovered in Mexico in 2003 and has the largest antlers ever seen in other species of dinosaur. The Indiana University Press published the results next week in a monograph.

After eight years of study made public today the original analysis of the dinosaur fossil Coahuilaceratops magnacuerna, a unique species in Mexico who lived in the second period of the Cretaceous period, about 72 million years.

“We know very little about the dinosaurs from Mexico, and this discovery greatly increases our knowledge of Late Cretaceous in the area,” says Mark Loewen, author of the study and a paleontologist at the Natural History Museum of Utah (USA).

The results are presented in the book New perspectives on dinosaurs with horns to be launched next week at Indiana University Press. Mark Loewen and his team propose that this is related to gender and Arrhinoceratops Anchiceratops and other chasmosaurinos.

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Category: Agricultural ScienceTags: Coahuilaceratops magnacuerna, dinosaur fossil, paleontologist, paleontologists, plant-eating dinosaur, Tyrannosaurus rex
 

31
May

 

Saavedra Cornide The ship docks at Palamos for popular science

 
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The research vessel Cornide de Saavedra, the Spanish Institute of Oceanography (IEO), moves to Palamos and opens its doors to more than 15,000 visitors expected at the Maritime Festival Terra Mar held in the Mediterranean city from Friday 28th to Sunday 30th.

From Friday 28 May until Sunday 30th, is celebrated in Palamos (Girona) the fifth edition of the Maritime Festival Terra Mar in which the Spanish Institute of Oceanography (IEO), in addition to a booth, explaining his scientific work will transfer to the Mediterranean city on the research vessel Saavedra Cornide for more than 15,000 visitors expected to know how the work they do at sea scientists IEO

The Spanish Institute of Oceanography (IEO) is involved in this way, showing the public the research conducted in his flagship, in this fifth edition of the Maritime Festival, dedicated this time to the study of the oceans.

The research vessel Saavedra Cornide, Is equipped with modern navigation and positioning systems, echo sounders and scientific laboratories.

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Category: Earth Science and SpaceTags: Mediterranean city, oceans, Saavedra Cornide
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