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Science News Archive 2015


Page 226 of 402

Spider and centipede venom evolved from insulin-like hormone

Researchers have discovered that spider and centipede venom originated from an insulin-like hormone, with similar molecular shapes between the toxins and the hormone. This finding has potential applications in developing new pharmaceuticals and bioinsecticides, as well as solving agricultural and medical problems.

SAMSUNG T9 Portable SSD 2TB

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Infants' superior perception linked to later autism symptoms

Researchers have discovered that infants with superior perception skills are more likely to develop autism symptoms later in life. The study found that enhanced visual searching ability at 9 months old predicted more emergent autism symptoms at 15 months and 2 years of age.

Rigol DP832 Triple-Output Bench Power Supply

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Milk proteins may protect against cardiovascular disease

Researchers found that naturally fermented milk-based products can lower cholesterol and triglyceride levels in mice, offering potential antioxidant and cardioprotective benefits. The study suggests that these compounds could be used as potential ingredients for improving human cardiovascular health.

Apple iPhone 17 Pro

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Swift intervention doubles survival rate from cardiac arrest

Researchers at Karolinska Institutet found that cardiopulmonary resuscitation performed before ambulance arrival increases survival rate by over two-fold. A new SMS Lifesavers system has also caused a 30% increase in CPR, highlighting the effectiveness of mobile technology in emergency response.

Study: changing climate prompts boreal forest shift

Researchers found that warmer summer temperatures in Interior Alaska led to a decline in white spruce tree growth, while Western Alaska saw increased growth rates. The study, which analyzed over 540 tree cores, suggests the boreal forest is shifting towards higher elevations and the western part of the state.

Being calm is contagious?

A study published in PLOS Computational Biology reveals that woodlice can calm their excited neighbors through a process of behavioral contagion, leading to greater group cohesion. This phenomenon is observed when calm individuals reduce the excitation of their neighbors, causing them to become calm as well.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

The dispersal of alien species redefines biogeography

An international research team found that human-mediated dispersal of alien gastropods has led to a global reorganization of biogeographic patterns, with communities becoming increasingly similar across continents. Climate now plays a major role in shaping species distribution, rather than geographical distance.

Scientists reveal underpinnings of drought tolerance in plants

A recent study reveals that a regulatory gene called NAC016 plays a crucial role in turning off drought-response pathways in plants. This discovery offers new insights into how to develop drought-tolerant crop plants through conventional breeding or biotechnological approaches.

Apple AirPods Pro (2nd Generation, USB-C)

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Wild mongooses avoid inbreeding with unusual reproductive strategy

Researchers found that male and female banded mongooses discriminate between relatives and non-relatives to avoid inbreeding, with males directing mating effort towards less closely related females. The study suggests a previously unknown breeding system where both sexes avoid inbreeding when mating within their extended family group.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Probing ways to convince young women not to use indoor tanning

A new study published in the American Journal of Public Health found that messages with images depicting the harsh realities of melanoma are more powerful than text-only warnings in persuading young women to reconsider indoor tanning. Loss-framed messages emphasizing the risks of indoor tanning were more effective in decreasing intenti...

Celestron NexStar 8SE Computerized Telescope

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A protein provides emergency aid

Scientists at TUM have characterized a small heat shock protein essential for embryonic development in nematodes, which may have implications for human health. The Sip1 protein regulates itself via pH value and prevents clotting of important proteins.

Genetic switch determines egg or sperm

New experiments on Japanese rice fish reveal that the fox13 gene determines whether a germ cell becomes an egg or sperm cell. Disrupting fox13 in adult fish with two X chromosomes leads to functional sperm formation in females.

Movement in ADHD may help children think, perform better in school

A study by researchers at the University of California - Davis Health found that children with ADHD who moved more intensely exhibited better cognitive performance. The study suggests that allowing movement during cognitive tasks may be beneficial for students with ADHD, rather than trying to keep them still.

Answering the mystery of turquoise provenance

Researchers Alyson M. Thibodeau and colleagues used lead and strontium isotopic ratios to distinguish geological sources of turquoise, shedding light on pre-Hispanic mining practices in the region. The study provides a new approach to investigate turquoise provenance, enabling scientists to better understand ancient mining activities.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Research on gonorrhea uncovers new immune system trigger

Scientists have identified a type of sugar produced by Gram-negative bacteria called heptose as the trigger for an immune response in patients with gonorrhea. This discovery could lead to the development of new therapies that use the immune system to fight infections instead of antibiotics.

Longstanding problem put to rest

Researchers at MIT report that a widely held assumption about computational complexity is correct, making it unlikely that a more efficient algorithm exists. The current edit distance algorithm, in use for over 40 years, has been deemed the best possible solution for comparing genomes or strings of symbols.

Pew names 22 top scientists as scholars in the biomedical sciences

The Pew Charitable Trusts has named 22 top scientists as scholars in the biomedical sciences, who will investigate topics ranging from microbiome to mosquito preference. The program provides four years of flexible funding and aims to advance bioscience and create a healthier world.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Scientists tune X-rays with tiny mirrors

Researchers at Argonne National Laboratory develop a new way of manipulating high-intensity X-rays using a small microelectromechanical system (MEMS) mirror. The device acts as an ultrafast mirror reflecting X-rays at precise times and specific angles, allowing for the selection of extremely brief but precise X-ray bursts.

Study finds inadequate hydration among US children

A recent Harvard study found that over half of US children and adolescents are not getting enough hydration, leading to potential health problems. Racial and ethnic disparities were also observed, with black children and boys at higher risk of inadequate hydration.

Call for help to killer cells improves cancer rejection

Researchers have confirmed that eosinophils release special agents attracting immune system's professional killers into cancer tissue, leading to improved cancer rejection and increased survival rates in mice. Eosinophils also normalize blood vessels in the tumor, contributing to tumor rejection.

Fluke 87V Industrial Digital Multimeter

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Atmospheric oxygen levels may have influenced past climate

Researchers found that variations in atmospheric oxygen levels over the past 500 million years may have contributed to changes in global temperatures. The study suggests that lower oxygen concentrations led to higher temperatures and increased precipitation during the Cenomanian time period, a warmest period in the past 100 million years.

Kestrel 3000 Pocket Weather Meter

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CalDigit TS4 Thunderbolt 4 Dock

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Most heart muscle cells formed during childhood

A new study published in Cell found that human heart muscle cells are primarily formed during childhood, with only 40% replaced throughout a person's life. This discovery suggests it may be possible to stimulate the rebuilding of lost heart tissue through therapeutic strategies.

Dusty secrets could help asthma sufferers

A study by the University of Arizona's BIO5 Institute has identified potential protective compounds in dust samples from Amish farming communities. The findings suggest that these natural environmental products could be transformed into medicines to promote lung health and prevent asthma. The research aims to understand the biological ...

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Hormone that differentiates sugar, diet sweeteners could exist in humans

A study by University of Michigan researcher Monica Dus found a hormone that triggers digestive response to real sugar but not artificial sweeteners in fruit flies, suggesting humans may have similar mechanism. This discovery helps explain why diet foods fail to satiate hunger and lead to weight gain.

Twitter data may help shed light on sleep disorders

Researchers from Boston Children's Hospital and Merck have built a digital phenotype of insomnia and other sleep disorders based on Twitter data. The study found that Twitter users with sleep problems are less active on social media but tweet more during traditional sleeping hours, suggesting an increased risk for psychosocial issues.