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Science News Archive 2013


Page 340 of 352

Dietary shifts driving up phosphorus use

A new study led by McGill University researchers found that rising meat consumption and calorie intake have fueled a 38% increase in the world's per capita phosphorus footprint since the early 1960s. By reducing meat consumption, particularly beef, countries can significantly decrease demand for mined phosphorus.

Learning the alphabet of gene control

Researchers at Karolinska Institutet have identified the DNA sequences that bind to over 400 proteins controlling gene expression, representing half of all human transcription factors. This discovery provides a valuable resource for furthering our understanding of the human genome and its role in disease development.

Mouse research links adolescent stress and severe adult mental illness

Researchers found that isolating mice with a genetic predisposition to mental illness caused abnormal behaviors, including hyperactivity and depression-like symptoms. Administering a cortisol-blocking compound restored normal behavior, highlighting the role of stress hormones in the development of severe mental illness.

AmScope B120C-5M Compound Microscope

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Irregular heart beat elevates risk of kidney failure

Researchers at UCSF and Kaiser Permanente have found that atrial fibrillation significantly increases the risk of end-stage renal disease among patients with chronic kidney disease. The study involved over 206,000 adults and showed that those who developed atrial fibrillation were 67% more likely to progress to kidney failure.

New insights into the 'borderline personality' brain

Researchers at University of Toronto Scarborough identified overactive negative emotion processing and underactive emotional regulation in people with Borderline Personality Disorder (BPD). This study provides valuable evidence for improving BPD diagnosis and treatment through brain imaging.

Apple iPhone 17 Pro

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Bacteria's hidden skill could pave way for stem cell treatments

Researchers at the University of Edinburgh discovered that bacteria can change the properties of supporting cells within the nerve system, called Schwann cells, to mimic stem cells. This process enables bacteria to spread throughout the body and potentially aid research into degenerative conditions.

Trading wetlands no longer a deal with the devil

Research from the University of Illinois recommends a new framework for wetland restoration that could lead to more environmentally positive outcomes. The current guidelines often favor larger, more homogeneous wetlands over smaller, unique ones, potentially harming biodiversity.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

A global approach to monitoring biodiversity loss

A global approach to monitoring biodiversity loss has been proposed by an international team of biologists. The system aims to improve information feeding into biodiversity policy and stimulate investment in measuring global biodiversity change.

Gastric banding an effective long-term solution to obesity

A landmark study found gastric banding to be an effective long-term strategy for managing obesity, with 78% of patients maintaining significant weight loss after 10-15 years. The procedure has lasting benefits, including improved health and longer lifespan, as well as effective control of type 2 diabetes.

Power's punishing impact

Research by USC Marshall School of Business professor Scott Wiltermuth found that giving individuals a sense of power leads to a clear sense of right and wrong, causing them to punish transgressions more severely. This moral clarity can lead to organizational problems in the private and public sector.

Sony Alpha a7 IV (Body Only)

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Is athleticism linked to brain size?

Researchers found that exercise-loving mice have significantly greater midbrain volume and larger non-cerebellar brain mass compared to regular mice. The study supports the mosaic theory of brain evolution, suggesting that changes in brain size may be region-specific rather than overall.

Novel technique reveals dynamics of telomere DNA structure

Scientists at UC Santa Cruz used a novel technique to study the structural and mechanical properties of telomeres, which could guide the development of new anti-cancer drugs. The research found that a small structural displacement causes the G-quadruplex structure to unfold, revealing its mechanical stability.

NASA beams Mona Lisa to Lunar Reconnaissance Orbiter at the moon

Scientists with NASA's Lunar Reconnaissance Orbiter (LRO) successfully transmitted an image of the Mona Lisa to the spacecraft from Earth using laser pulses. The team achieved simultaneous laser communication and tracking, paving the way for future high-speed data transfer at planetary distances.

Compensation negotiation among women in the workplace

A new study found that women who legitimize their compensation requests and communicate concern for organizational relationships are viewed more favorably by colleagues. This approach, rather than a direct negotiation style, is key to avoiding social backlash and successfully negotiating higher salaries. The study calls for further res...

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Molecular twist helps regulate the cellular message to make histone proteins

A team of researchers from the University of North Carolina and Columbia University discovered how two key proteins in messenger RNA communicate via a molecular twist to regulate histone production. This complex interaction helps maintain the balance of histones and DNA, ensuring proper cell growth and division.

Novel sensor provides bigger picture

The novel sensor uses a metamaterial to image scenes with fewer components, eliminating the need for lenses and mechanical positioners. This allows for faster and more efficient screening in security situations.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Great Oxidation Event: More oxygen through multicellularity

Multicellular cyanobacteria developed over 2.3 billion years ago, coinciding with the Great Oxidation Event that increased atmospheric oxygen levels. This event is considered a significant climate shift, as multicellularity allowed for more efficient metabolism and paved the way for diverse life forms.

Hearing-loss-prevention drugs closer to reality thanks to new UF test

Researchers at University of Florida have developed a new test method to evaluate anti-hearing-loss drugs in humans, offering hope for protection against irreversible noise-induced hearing damage. The first clinical trials are underway using dietary supplements and pharmaceuticals, aiming to prevent hearing damage in individuals at risk.

GQ GMC-500Plus Geiger Counter

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Notre Dame to be part of $194 million university research center network

The University of Notre Dame has been selected to lead the Center for Low Energy Systems Technology (LEAST), a $6 million research center funded by DARPA and SRC. The center aims to develop new devices that consume less energy, which will enable the creation of smaller and faster computer chips.

Mount Sinai researchers discover how the flu virus tells time

Researchers at Mount Sinai have discovered that the flu virus can essentially tell time, with a clock that dictates when it multiplies, infects cells, and spreads. This finding provides a novel design platform for the flu vaccine and could lead to new antiviral drugs that target the virus's internal clock.

Genetic admixture in southern Africa

Researchers found divergent mtDNA lineages in Bantu-speaking groups from Zambia, which were incorporated into their genepool through intermarriage with indigenous Khoisan women. These relic lineages demonstrate that Khoisan peoples survived until the present day despite the extinction of their source populations.

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It's a dog's life: Doggy database aims to define pet health

A longitudinal study of Labrador Retrievers in the UK is providing valuable insights into canine diseases and veterinary care. The research found that four out of ten dogs were ill at some point, with 80% showing signs of illness by one year old.

Quail really know their camouflage

Researchers discovered that female quail select egg-laying substrates based on the unique characteristics of their own eggs, maximizing disruptive coloration to avoid predation. By matching their egg patterning with surrounding colors, quail reduce the likelihood of their eggs being detected and eaten by predators.

New key to organism complexity identified

Researchers found that the critical transcription factor TFIID can co-exist in two distinct structural states, enabling recognition and binding to DNA sequences. This discovery provides new insight into gene expression regulation, a process crucial for growth, development, health, and survival of all organisms.

GoPro HERO13 Black

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How cells know when it's time to eat themselves

Autophagy is triggered when cells are starved for nutrients, infected, or damaged. The study reveals that AMPK regulates Vps34 kinase complexes in different ways, inhibiting non-autophagy enzymes and activating autophagic ones.

How the brain copes with multi tasking alters with age

A new study found that the brain's pattern of blood flow in the prefrontal cortex alters with age during multitasking. Healthy older people had a higher and more sustained increase in oxygenated haemoglobin, indicating increased brain activity. This change is associated with normal aging and may impact dual-task performance.

DJI Air 3 (RC-N2)

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Savanna study highlights African fuelwood crisis

Researchers warn of bleak outlook for savanna fuelwood supplies in Africa, with potential exhaustion in 13 years. To avoid this, reducing fuelwood use by 15% annually is proposed until only 20% of households rely on it.

A nano-gear in a nano-motor inside you

Researchers discovered that a team of dynein motors can share a load much larger than any one motor can handle due to their ability to change gears. This allows them to work efficiently and generate large forces. In contrast, kinesin motors without gears cannot produce comparable forces.

Aranet4 Home CO2 Monitor

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Light exposure during pregnancy key to normal eye development

Scientists at Cincinnati Children's Hospital Medical Center and the University of California, San Francisco, discovered a light-response pathway that controls retinal neuron development during pregnancy. This finding has significant implications for understanding fetal eye development and ocular diseases caused by vascular disorders.

Nikon Monarch 5 8x42 Binoculars

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INRS acquires a groundbreaking advanced imaging infrastructure

The INRS Energy Materials Telecommunications Research Centre will have access to a cutting-edge Dynamic Transmission Electron Microscope (DTEM) with unprecedented high spatial and temporal resolution. This equipment will revolutionize materials research, enabling the study of ultrafast and ultrasmall material structures.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Portrayal of spring break excess may be stereotypes gone wild

Researchers analyzed studies on spring break from 1980 to 2010 and found no conclusive evidence of increased extreme behaviors. Instead, they suggest that campus behaviors are a good predictor of how students will act during spring break. The media portrayal of spring break may not accurately represent the full experience.

New centers and large grants funding announced

The Economic and Social Research Council (ESRC) is pleased to announce £30m in funding for eight new research centres and large grants. These investments will focus on various subjects, including infrastructure, interdisciplinary working, and international collaboration.