Biological Systems Current Events | Biological Systems News | 4
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United Kingdom ranked 24th in health systems of the world
Countries with the best levels of health do not always have efficient health systems, according to a study in this week's BMJ, which ranks the health systems of the world according to their efficiency in turning expenditure into health. The United Kingdom is ranked 24th out of 191 countries. Researchers at the World Health Organisation estimated... view more... (2001-08-08)
Nature offers guidance on organising dynamic networks
Today, for many, computer networks are an indispensable infrastructure that interconnects people, places and organisations. But increasingly they are beginning to creak as their complexity grows. Biological systems through years of evolution can offer clues on how to cope, as a research project has demonstrated. view more (2006-05-30)
A quicker, cheaper SARS virus detector -- one easily customizable for other targets
Members of a USC-led research team say they've made a big improvement in a new breed of electronic detectors for viruses and other biological materials - one that may be a valuable addition to the battle against epidemics. view more (2009-05-29)
Researchers publish first working model that explains how biological clocks work
Science has known for decades that biological clocks govern the behavior of everything from humans to lowly bread mold. These ticking timekeepers hold the key to many diseases, annoy passengers on intercontinental flights and can mean life or death for small creatures trying to survive in nature. view more (2007-02-13)
Fast AFM probes measure multiple properties of biomolecules or materials simultaneously
New research demonstrates that novel probe technology based on flexible membranes can replace conventional atomic force microscopy (AFM) cantilevers for applications such as fast topographic imaging, quantitative material characterization and single molecule mechanics measurements. view more (2008-04-17)
Carnegie Mellon technique accelerates biological image analysis
Researchers in Carnegie Mellon University's Lane Center for Computational Biology have discovered how to significantly speed up critical steps in an automated method for analyzing cell cultures and other biological specimens. view more (2008-05-01)
Inactivity of proteins behind longer shelf life when freezing
Frozen biological material, for example food, can be kept for a long time without perishing. A study by researchers at the University of Gothenburg, Sweden, is close to providing answers as to why. view more (2009-03-03)
Study maps life in extreme environments
A team of biologists have developed a model mapping the control circuit governing a whole free living organism. This is an important milestone for the new field of systems biology and will allow the researchers to model how the organism adapts over time in response to its environment. view more (2007-12-28)
Another reason to avoid high-fat diet -- it can disrupt our biological clock
Indulgence in a high-fat diet can not only lead to overweight because of excessive calorie intake, but also can affect the balance of circadian rhythms - everyone's 24-hour biological clock, Hebrew University of Jerusalem researchers have shown. view more (2008-12-29)
Human reproductive rates follow biological scaling rules
In nations with high per capita energy consumption, women have fewer children. This phenomenon is an unexpected consequence of the biological scaling relationship between metabolism and reproductive rate: larger species of mammals have higher metabolism but lower birth rates. In the April 2003 issue of Ecology Letters, Moses and Brown show that... view more... (2003-04-08)
Engineers demonstrate a new type of optical tweezer
Researchers at the Harvard School of Engineering and Applied Sciences (SEAS) demonstrated a new type of optical tweezer with the potential to make biological and microfluidic force measurements in integrated systems such as microfluidic chips. view more (2008-02-26)
BIOSEK, evaluation methodology of different biometric systems
BIOSEK, is the design and set-up of an evaluation methodology and comparison of different biometric systems in real environments. The aim of this project is to design and set-up a laboratory which includes biometrics systems for authentication, and to develop a methodology to evaluate and compare them in order to give interested institutions and... view more... (2004-03-31)
Study offers innovative profile of enzyme that aids tumor growth
To date, understanding the roles of uncharacterized enzymes in cell physiology and pathology has remained problematic. view more (2006-10-23)
NIST demonstrates better memory with quantum computer bits
Physicists at the National Institute of Standards and Technology (NIST) have used charged atoms (ions) to demonstrate a quantum physics version of computer memory lasting longer than 10 seconds-more than 100,000 times longer than in previous experiments on the same ions. view more (2005-08-11)
Research casts doubt on controversial scientific theory
Scientists at the University of Sheffield have cast doubt on the validity of the controversial theory of biological cold fusion, the principle sometimes used to lend credence to the practice of selling silicon tablets to strengthen bones, on the assumption that the body will turn the silicon into calcium. view more (2003-05-07)
Reversible Microlenses to Speed Chemical Detection
The microlenses make use of the antibody-antigen binding, the same process used by the human immune system, to detect biological or chemical agents. view more (2006-02-14)
Nanoscopic static electricity generates chiral patterns
In the tiny world of amino acids and proteins and in the helical shape of DNA, a biological phenomenon abounds. view more (2009-02-02)
Using a magnet to tune a magnet
An international research team, led by scientists at the London Centre for Nanotechnology (LCN), has found a way to switch a material's magnetic properties from 'hard' to 'soft' and back again -- something which could lead to new ways of controlling electromagnetic devices. view more (2007-08-02)
New imaging method lets scientists 'see' cell molecules more clearly
Scientists have always wanted to take a closer look at biological systems and materials. From the magnifying glass to the electron microscope, they have developed ever-increasingly sophisticated imaging devices. view more (2009-01-21)
Effective solar cells and sensitive bioanalysis
The efficiency factor of solar cells is crucial for the success of generating electricity from sunlight. Systems in which light is concentrated 400-fold through lenses onto solar cells are proving to be particularly advantageous. view more (2009-06-26)
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