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Science News for February 17, 2011


Male fertility is in the bones

Researchers found that osteocalcin produced in bone enhances testosterone production in testes, supporting sperm survival. This discovery links the skeleton to male fertility and may provide insights into unexplained infertility cases.

SourceCell Press·JournalCell·DateFeb 17, 2011

Choose less contaminating products thanks to eco-labeling

A researcher has developed an eco-labeling system to provide environmental information on product carbon footprints, enabling consumers to make informed choices. The system, based on a method composed of financial accounts, estimates the ecological and carbon footprint of goods and services throughout their life cycle.

SourceSpanish Foundation for Science and Technology·JournalThe International Journal of Life Cycle Assessment·DateFeb 17, 2011

Children in public housing play outdoors more

Researchers discovered that young children living in public housing spend more time playing outdoors than their peers, with a significant link to lower body mass indexes (BMIs). Mothers' perceptions of neighborhood environments also played a key role in predicting children's outdoor playtime and TV watching habits.

SourceRice University·JournalSocial Science & Medicine·DateFeb 17, 2011

Ben-Gurion U. research leads to improved calcium supplement derived from crustacean shells

A team of BGU researchers has created a unique calcium supplement form that provides higher biological absorption and retention rates. The supplement, derived from unstable calcium carbonate, showed significant benefits in laboratory animals, with improved blood and bone absorption rates.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalJournal of Bone and Mineral Research·DateFeb 17, 2011

The brain as a 'task machine'

Researchers found that the brain area responsible for reading is active in blind individuals who read Braille, challenging the idea of sensory specialization. The study suggests that the brain is a task-oriented system that can adapt to new tasks without prior experience.

SourceCell Press·JournalCurrent Biology·DateFeb 17, 2011

Compact high-temperature superconducting cables demonstrated at NIST

Researchers at NIST have developed compact high-temperature superconducting cables with improved strain tolerance, enabling thinner and more flexible cables for electric power grid applications. The new cables may also be used in scientific and medical equipment, as well as for military applications such as HTS power transmission.

SourceNational Institute of Standards and Technology (NIST)·JournalSuperconductor Science and Technology·DateFeb 17, 2011

Rewrite the textbooks

Researchers at Northwestern University have made a groundbreaking discovery in the field of neuroscience, finding that axons can transmit signals to the cell body and even communicate with each other. This challenges conventional wisdom on how neurons operate, revealing a new layer of complexity in neural communication.

SourceNorthwestern University·JournalNature Neuroscience·DateFeb 17, 2011

Sleeping Trojan horse to aid imaging of diseased cells

Researchers at Cardiff University have developed a 'sleeping Trojan horse' delivery system that enables the efficient transport of metal ions into cells, opening up new possibilities for medical imaging. This innovative approach resolves some of the difficulties associated with traditional 'Trojan Horse' techniques.

SourceCardiff University·JournalChemical Communications·DateFeb 17, 2011

Neisseria meningitidis disseminates itself by sending out 'scouts'

Researchers at Inserm discovered that Neisseria meningitidis uses a strategy called 'scouting' to disperse from the throat into the bloodstream. This process involves the modification of pilin proteins with phosphoglycerol, which triggers dissemination and allows bacteria to colonize other areas of the throat and cross cell walls.

Planning for a nuclear future

Researchers from six UK universities are studying how daily radiation exposure damages graphite blocks in nuclear power reactors. The study aims to help nuclear utility companies plan for the future and improve manufacturing processes.

Plants cloned as seeds

Researchers have successfully cloned plants as seeds, paving the way for hybrid crop plants that can breed true. The breakthrough uses a process called apomixis, where eggs and sperm are haploid, allowing diploid eggs to be produced without sexual recombination.

Research predicts future evolution of flu viruses

Researchers developed a new approach to predict which flu strain will be prevalent in a given year by tracking pairs of genetic changes. This method offers insights into epistasis, where mutations interact with each other to affect the virus's fitness. By analyzing these interactions, scientists can gain early warnings of emerging muta...

SourcePLOS·JournalPLOS Genetics·DateFeb 17, 2011

First-of-its-kind study shows benefits of electrical stimulation therapy for people paralyzed by spinal cord injury

Researchers found that functional electrical stimulation (FES) therapy worked better than conventional occupational therapy alone to increase patients' ability to pick up and hold objects. FES therapy also improved daily activities such as dressing and eating, with significant implications for quality of life and independence.

SourceToronto Rehabilitation Institute·JournalNeurorehabilitation and Neural Repair·DateFeb 17, 2011