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Science News Archive 2019 - Page 57


Page 57 of 486

Breakthrough in malaria research

A genome-wide gene deletion study on malaria parasites identified hundreds of new targets for disease control. The study, led by the University of Bern, used a malaria mouse model to systematically screen the parasite's genome and identify essential metabolic pathways.

SourceUniversity of Bern·JournalCell·DateNov 14, 2019

Scientists close in on malaria vaccine

A team of researchers identified protective antibodies against severe malaria in children, paving the way for a potential vaccine. The discovery uses genomic sequencing and machine learning to pinpoint specific proteins and antibodies that provide immunity.

SourceJames Cook University·JournalCell Host & Microbe·DateNov 14, 2019

Near-infrared electrochromism of a new multilayered complex

Researchers have developed a new multilayered complex that displays high-performance near-infrared electrochromism. The complex, prepared by layer-by-layer coordination assembly on metal oxide substrates, exhibits two reversible redox waves and excellent electrochromic performance with a contrast ratio of up to 56% at 1150 nm.

SourceScience China Press·JournalScience China Chemistry·DateNov 14, 2019

Unhealthy habits can start young: Infants, toddlers, and added sugars

A new study found that nearly two-thirds of infants and almost all toddlers consumed added sugars in their daily diets, primarily in flavored yogurts and fruit drinks. The widespread intake points to a serious problem, as early eating patterns can lead to negative health conditions such as cavities, obesity, and elevated blood pressure.

SourceElsevier·JournalJournal of the Academy of Nutrition and Dietetics·DateNov 14, 2019

Sociable crows are healthier -- new research

A new study by Anglia Ruskin University finds that crows in larger social groups have lower parasite loads and are healthier. The research reveals a correlation between sociability and health, suggesting that strong social bonds reduce stress levels and make crows less susceptible to parasites.

SourceAnglia Ruskin University·JournalAnimal Behaviour·DateNov 14, 2019

Alpine rock axeheads became social and economic exchange fetishes in the Neolithic

Research led by the Universitat Autonoma de Barcelona found that Alpine rock axeheads were a crucial component of pan-European exchange networks, with some rocks traveling over 1000 kilometres. The study's results suggest that the rocks' exceptional durability and resistance to friction made them highly valued for their production value.

SourceUniversitat Autonoma de Barcelona·JournalJournal of Archaeological Method and Theory·DateNov 14, 2019

Is evolution predictable?

Researchers used CRISPR gene editing to study butterfly wing patterns, finding that similar patterns evolved through different genetic pathways despite shared environmental pressures. The study reveals the complex interplay between chance and history in shaping evolutionary outcomes.

SourceSmithsonian Tropical Research Institute·JournalCurrent Biology·DateNov 14, 2019

Blood test for deadly eye melanoma

Researchers at University of Queensland have discovered markers in blood that differentiate benign moles from melanoma, as well as detect cancer spread to other areas. The blood test may monitor very early signs of the disease, allowing for better screening of patients with eye naevi.

SourceUniversity of Queensland·JournalTranslational Vision Science & Technology·DateNov 14, 2019

The invisible US Hispanic/Latino HIV crisis: Addressing gaps in the national response

A peer-reviewed commentary warns of widening HIV infection disparities among Hispanics/Latinos, with the highest increase seen in gay and bisexual men aged 25-34. The article advocates for targeted investment in stigma reduction, treatment accessibility, behavioral interventions, and community leadership engagement to address the crisis.

SourceNew York University·JournalAmerican Journal of Public Health·DateNov 14, 2019

A one-way street for light

Researchers have successfully created a new one-way street for light by cooling photons to a Bose-Einstein condensate. This process causes the light to collect in optical valleys from which it can no longer return, effectively irreversibly dividing the light beam. The findings could be of interest for future quantum communication.

SourceUniversity of Bonn·JournalScience·DateNov 14, 2019

Protecting native vegetation on rural properties yields Brazil USD 1.5 trillion per year

The study estimates that preserving 270 million hectares of native vegetation yields Brazil USD 1.5 trillion per year in ecosystem services such as crop pollination, pest control, and water security. This research supports the importance of Legal Reserves and Permanent Conservation Areas in maintaining environmental services.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalPerspectives in Ecology and Conservation·DateNov 14, 2019

Research reveals new state of matter: a Cooper pair metal

A team of researchers has revealed a new state of matter where Cooper pairs enable electricity to flow with some resistance. This finding challenges current theories and requires further investigation. The discovery was made using a technique that involves patterning a thin-film superconductor with arrays of tiny holes.

SourceBrown University·JournalScience·DateNov 14, 2019

Research award for project on heart transplantation

A recent study found that mitochondrial damage-associated molecular patterns (mtDAMPs) are released by DCD hearts following warm ischemia, correlating with subsequent contractile recovery. The research team aims to investigate the role of mtDAMPs in inflammatory responses and recovery of contractile function in cardiac grafts.

Stanford researchers explore how citizens can become agents of environmental change

A new Stanford-led study provides a framework for environmental education programs to maximize impact. The research highlights four key facets: focusing on locally relevant issues, collaborating with experts, incorporating action-oriented learning strategies, and measuring outcomes. By implementing these principles, citizens can make m...

SourceStanford University·JournalBiological Conservation·DateNov 14, 2019

How Crohn's disease-associated bacteria tolerate antibiotics

Researchers discovered that Crohn's disease-associated bacteria can switch between replicating and non-growing states within macrophages to tolerate antibiotics. This stress response allows a reservoir of antibiotic-tolerant bacteria to survive in the host and cause long-term inflammation and irritation.

SourcePLOS·JournalPLOS Pathogens·DateNov 14, 2019