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Science News for July 21, 2008


Malaria control goals are likely to be unachievable

Research finds that international malaria financing is insufficient to achieve the goal of halving the global burden of malaria by 2015. Funding commitments are largely tied to stable P. falciparum risk, leaving countries with high but low-risk populations poorly supported.

SourcePLOS·JournalPLOS Medicine·DateJul 21, 2008

Mangroves key to saving lives

Low-budget, locally led mangrove replanting projects are more successful than high-cost government-led projects, achieving survival rates of up to 97%. Planting the correct species in suitable sites and community involvement are key to ecological benefits.

SourceSpringer·JournalWetlands Ecology and Management·DateJul 21, 2008

Study examines motivations for tattoo removal

A study published in Archives of Dermatology found that women are more likely to remove their tattoos due to social stigma and embarrassment, with 69% of participants being women. The study also revealed that societal support for women with tattoos is limited, leading to increased dissatisfaction with their tattoos over time.

SourceJAMA Network·JournalArchives of Dermatology·DateJul 21, 2008

Nanotechnology: Learning from past mistakes

The study applies the 12 'late lessons from early warnings' to nanotechnology, concluding that industry and government are repeating past mistakes. The authors call for improved risk research strategies, stakeholder engagement, and a more holistic approach to ensure the safe development of emerging nanotechnologies.

Predicting acute GVHD by gene expression could improve liver stem cell transplant outcomes

Researchers at the University of Florida have identified a molecular signature based on gene expression that can predict the development of acute graft-versus-host disease (GVHD) in patients receiving liver stem cell transplants. This could lead to better biomarkers for determining patient risk and improving treatment outcomes.

Study outlines measures to limit effects of pandemic flu on nursing homes

Researchers developed mathematical models to determine effective non-pharmaceutical interventions (NPIs) for protecting vulnerable populations in nursing homes. The study found that conventional NPIs can curb mild outbreaks, but higher-level restrictions are needed for severe ones. Staff plays a critical role in controlling disease spr...

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateJul 21, 2008

Teaching in a disruptive classroom

A college biology teacher found that by addressing student misbehavior directly, he was able to improve classroom attention and engagement. The study suggests that simply being direct with students can resolve problems and encourage cooperation.

SourceAmerican Society of Agronomy·JournalJournal of Natural Resources and Life Sciences Education·DateJul 21, 2008

Study: Common wisdom about troubled youth falls apart when race considered

A new study published in Journal of Marital and Family Therapy found that African-American youth exhibit similar levels of externalizing and internalizing behavior once family dysfunction is accounted for. The research suggests that family issues affect children in African-American families differently than they do in white families.

SourceOhio State University·JournalJournal of Marital and Family Therapy·DateJul 21, 2008

Closing the hydrogen economic loop

Ovshinsky explains that we have the means to produce hydrogen from renewable resources in a sustainable way and store it effectively. This technology enables the entire loop of hydrogen generation, storage, and use to be carried out now.

SourceInderscience Publishers·JournalInternational Journal of Nuclear Hydrogen Production and Applications·DateJul 21, 2008

WikiPathways gives the people the power to curate

The new resource allows users to view, store, and edit biological pathway information, leveraging collective expertise to facilitate content collection and curation. WikiPathways provides a wealth of annotated information, maximizing the value of biological data and supporting future hypotheses and discoveries.

SourcePLOS·JournalPLOS Biology·DateJul 21, 2008

Researchers find key to saving the world's lakes

A 37-year experiment on Lake 227 found that controlling nitrogen levels does not correct polluted lakes and may exacerbate the issue. The study's results contradict EU practices and previous research, highlighting the severity of cultural eutrophication globally.

SourceUniversity of Alberta·JournalProceedings of the National Academy of Sciences·DateJul 21, 2008

Ultrasonic frogs can tune their ears to different frequencies

Researchers discovered an unusual frog species that can actively select sound frequencies, tuning in to specific sounds like a radio. The 'Odorrana tormota' frog's eardrums respond differently depending on the Eustachian tubes' opening state, allowing it to filter out background noise and focus on ultrasonic calls.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateJul 21, 2008

Microbes beneath sea floor genetically distinct

Researchers discovered that microbes beneath the sea floor are genetically distinct and dominate life's biomass, with a unique metabolism and slow growth rate. The study found that these microbes could survive major Earth impacts and potentially be a reservoir of novel genetic material.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJul 21, 2008

Montreal researchers prove that insulin-producing cells can give rise to stem-like cells in-vitro

Montreal researchers have shown that insulin-producing β-cells can dedifferentiate into stem-like cells, a key finding with implications for regenerative therapies and the development of innovative treatments. The study's results validate the potential of a peptide called INGAP to induce new islet formation in the pancreas.

SourceMcGill University Health Centre·JournalLaboratory Investigation·DateJul 21, 2008