Tag: "constraints" at biology news

DNA constraints control structure of attached macromolecules

...d and misfolded RNAs. They could also hook the DNA constraints to other molecules, including non-biological macro...he process of manipulating macromolecules with DNA constraints can be either reversible or irreversible, depending on which chemical trigger is used. Like a switch...

UN successfully tests 'green' pesticide against locusts

...d and misfolded RNAs. They could also hook the DNA constraints to other molecules, including non-biological macro...he process of manipulating macromolecules with DNA constraints can be either reversible or irreversible, depending on which chemical trigger is used. Like a switch...

Health costs soar as 60 million Americans classed as obese

...d and misfolded RNAs. They could also hook the DNA constraints to other molecules, including non-biological macro...he process of manipulating macromolecules with DNA constraints can be either reversible or irreversible, depending on which chemical trigger is used. Like a switch...

Device traps, disables harmful bacteria

..."Engineering control methods must be balanced with constraints such as occupant comfort, economic factors, and building management strategies to ensure that the health risks associated with bioaerosol exposure are as low as practical." ...

Tsunami + 1 year: Reviving exhausted fisheries should trump replacing boats, gear, experts say

...by capacity-control plans; Investigate the costs, constraints and benefits of a national vessel registration system to ensure that fishing capacity is monitored and controlled appropriately; Based on available science, establish a ceiling on the overall number of vessels that can operate in each region, with m...

Do the Europeans turn ill sitting up so late?

...nce of sleep disorders, shift work, socio-economic constraints or voluntary restriction of sleep, due to life style. This can result in performance decrements, mood disorders, increased accident rates and considerable decrease in the quality of life.Sleep loss may also predispose individuals to conditions such a...

New technique puts brain-imaging research on its head

...because the brain is trying to pull away from some constraints in the front of the brain." Bayly and his collaborators can apply the levels of deformation they have found with their subjects to in vitro experiments or to animal models to learn even more about brain matter deformation. They have done experiment...

Patterns in genome organization may partially explain how microbial cells work

...emonstrate that there are significant evolutionary constraints that act upon genomes organization as well as upon genome content. That interplay between organization and function can't be ignored if we want to gain a better fundamental understanding of how a microbial cell works." ...

Mute swan population helps explain longstanding evolutionary question

...chers hypothesize that a recent relaxation of food constraints and an increase in protection from predators may have helped enable the swans to evolve towards a new, larger clutch size. ...

There's something fishy about human brain evolution

...g link to help answer this question: the metabolic constraints that are critical for healthy human brain development today, and for its evolution. Human brains aren't just comparatively big, they're hungry. The average newborn's brain consumes an amazing 75-per cent of an infant's daily energy needs. According ...

First demonstration of 'teaching' in non-human animals

...t determines when teaching will evolve, rather the constraints of brain size. ...

Biofuels can replace about 30 percent of fuel needs with significant research and policy effort

...productivity of energy crops will mean identifying constraints and correcting them with genomic tools. To make biofuels a truly practical alternative to petroleum, the group says there will need to be significant improvements in how biofuel is processed. Their vision is for a fully integrated biorefinery, whic...

Robots manipulating animal behaviour

...ublished in leading IT and biology journals. "Time constraints prevented us from exploring all the new and interesting research paths that opened during the project," says the project coordinator. "But we succeeded in our main goal ?showing that an artificial agent such as a robot can modify the collective behav...

Plant diseases threaten chocolate production worldwide

...pread. "Plant diseases are the most important constraints to cacao production and the continued viability of the world's confectionary trades," said Randy Ploetz, plant pathology professor at the University of Florida, Homestead, FL. Currently, 4 million metric tons of beans worth more than $4 billion are p...

Complexity constrains evolution of human brain genes

...ith multiple gene-gene interactions, places strong constraints on the ability of most brain-related genes to change. "We found that genes expressed in the human brain have in fact slowed down in their evolution, contrary to some earlier reports," says study author Chung-I Wu, professor of ecology and evolutio...

Too mellow for our predatory world

...bility to adapt to new predators is not limited by constraints in the physiological system but by narrow behaviour. "Long-lasting escape flights entail a loss of strength for the animals. In the absence of predators, selection may have privileged especially those animals that did not engage in such costly behavi...

First-time analysis reveals millions of Europeans left at risk from influenza

...target population of 35.4% based on current supply constraints As a consequence up to 144.4 million people who are considered "at risk" may not be vaccinated. Implementing a 100% vaccination rate programme for all risk groups across the EU-25 would lead to an estimated reduction of number of influenza cas...

Amphibians in losing race with environmental change

...of global change, a new study suggests. The basic constraints of evolution and the inability of species to adapt quickly enough can explain most of the causes that are leading one species after another of amphibians into decline or outright extinction, say researchers from Oregon State University, in a study pu...

1