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Science News Archive 2015


Page 41 of 402

Addition of sugars plays a key developmental role in distantly related plants

Researchers have found that deleting certain sugar-adding enzymes from plants results in similar defects across distantly related species, highlighting the importance of these modifications. The addition of sugar molecules to proteins controls tip growth, a process critical for cell wall formation and seed production.

Apple iPhone 17 Pro

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UK awarded $6 million to further develop treatment for cocaine abuse

The University of Kentucky has received $6 million in funding to further develop a potential treatment for cocaine abuse. The project, led by Professor Chang-Guo Zhan, aims to create a novel enzyme that can neutralize cocaine in the bloodstream using molecular modeling technology.

Climate change: Warm water is mixing up life in the Arctic

Researchers at the Alfred Wegener Institute found that a 15-year observation series reveals how sensitive arctic marine ecosystems are to change. The study indicates that even a short-term influx of warm water can fundamentally impact local symbiotic communities, leading to changes in deep-sea life.

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Electronic plants developed at Linköping University

Researchers at Linköping University successfully integrated electronic components into living roses, enabling the creation of digital logic gates, displays, and even electrochemical transistors. This breakthrough paves the way for innovative applications in energy, environmental sustainability, and plant science.

ADHD meds may be a prescription for bullying

A new University of Michigan study found that kids and teens taking ADHD medications are twice as likely to be bullied by peers than those without ADHD. Middle school students who sold or shared their medications were four-and-a-half times more likely to be victimized.

New UTA research will automatically check for bugs in cyber-physical systems

Researchers at the University of Texas at Arlington are using formal, methods-based testing to automatically discover bugs in development environments for cyber-physical systems. The technique, known as randomized differential testing, generates random programs and models, then translates and compiles them to identify defects.

Surprising signal to control male fertility

Scientists have discovered a surprising role of Wnt signaling in controlling male fertility. The research found that Wnt protects proteins from degradation, allowing sperm to mature and move forward. This discovery has potential implications for the treatment of infertility and contraception.

Davis Instruments Vantage Pro2 Weather Station

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Half of all Amazonian tree species may be globally threatened

A new study estimates that up to 8,690 Amazonian tree species may face extinction, with more than half of the world's tropical tree species at risk. Protected areas and indigenous territories have made strides in preserving biodiversity, but further management is crucial to prevent extinctions.

The economic significance of cities increases while that of countries falls

A study by the University of the Basque Country found that global cities have a greater economic significance than countries. Cities with strong economic and political leadership, as well as innovative activity, are more competitive. The top-ranking cities include London, Paris, Tokyo, Madrid, Barcelona, and Milan.

Acorn worm genome reveals gill origins of human pharynx

The acorn worm's genome has revealed the origin of the human pharynx, showing how gill slits evolved into the jaw and throat. The study found that humans and other terrestrial vertebrates retain vestigial gills in embryos, a trait shared with marine animals.

All in the family

Research by UCSB anthropologists found that parasitic intestinal worms can impact the timing of pregnancies among Tsimane women, with hookworm infection increasing intervals between births and roundworm infection shortening them. This study suggests helminth infections may affect demographic patterns in developing populations.

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Bacterial protein can help convert stem cells into neurons

A study found that combining bacterial protein Skp with small molecules can convert pluripotent cells into functional neurons. The research used Sox2 and Skp to initiate differentiation, followed by the use of neurodazine to direct lineage-specific commitment.

Tropical fossil forests unearthed in Arctic Norway

Researchers have discovered ancient fossil forests in Svalbard, Norway, dating back 380 million years, which may hold the secrets to a 15-fold reduction in atmospheric CO2 levels. The dense, equatorial forests were likely formed by lycopod trees and could provide valuable information on the evolution of tree-sized vegetation.

Moderate amounts of caffeine during pregnancy do not harm baby's IQ

A recent study published in American Journal of Epidemiology found that moderate amounts of caffeine during pregnancy do not harm the child's intelligence or behavior. Researchers analyzed data from 2,197 expectant mothers and found no associations between maternal caffeine intake and childhood obesity or behavioral problems.

Apple Watch Series 11 (GPS, 46mm)

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Sensory illusion causes cells to self-destruct

A study reveals that yeast cells falsely perceive a specific pattern of stress as an ever-increasing ramp, leading to their self-destruction. The findings suggest that many cell types, including human cells, may be predisposed to misperceptions and could be fooled by carefully engineered illusions.

NASA's STEREO-A resumes normal operations

STEREO-A has resumed its normal science operations, transmitting lower-resolution real-time data and high-definition images of the sun's surface and atmosphere with a two- to three-day delay. This allows scientists to better track solar events and make accurate models of interplanetary space weather.

'Healthy' foods differ by individual

A new study published in Cell Press found that the glycemic index of foods varies significantly between individuals, contradicting traditional dietary recommendations. The research, led by Eran Segal and Eran Elinav, used a large cohort of participants to demonstrate the power of personalized nutrition in managing blood sugar levels an...

New method for imaging marmoset brains

Researchers developed a new system to image individual neurons in the marmoset brain, overcoming limitations with two-photon microscopy. This allows for long-term study of neural activity related to cognitive and social behaviors.

Growing sweet on tomatoes

Researchers from Tohoku University created a modified DNA sequence that increases sucrose levels in tomatoes without limiting growth. The technology also affects amino acid metabolism, resulting in higher levels of several key compounds.

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Discovery helps explain what guides neurons to connect

Researchers have identified a new protein, NELL2, that acts as a 'Do Not Enter' sign to guide axons across the midline of the spinal cord. This finding contributes to solving the mystery of axon guidance and may advance therapeutic approaches for neuronal repair.

Some mollusks equip their armor with eyes

Chitons have eyes with mineral-based lenses in their shells, allowing them to visualize predators and respond quickly. The size and complexity of individual chiton eyes impact the local mechanical performance of their armor, highlighting trade-offs between protection and sight.

Speaking multiple languages linked to better cognitive functions after stroke

A study published in the American Heart Association journal Stroke found that bilingual patients were twice as likely as those who spoke one language to have normal cognitive functions after a stroke. The research also showed that bilinguals performed better on post-stroke tests measuring attention and information retrieval.

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Blood test may predict how quickly patients recover from surgery

A blood test can predict how quickly patients recover from surgery by identifying their unique immune state before the procedure, according to a new study. This simple test may help personalize recovery approaches and have a significant impact on perioperative medicine.

Fluke 87V Industrial Digital Multimeter

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Monkeys in Asia harbor virus from humans, other species

A new study found that nonhuman primates in Bangladesh and Cambodia harbor diverse astroviruses, including human astroviruses, challenging the paradigm that AstV infection is species-specific. The researchers also detected recombinant viruses that may be more efficiently transmitted.

Control of blood vessel formation

Researchers from Kumamoto University and The University of Tokyo have elucidated the control of cellular movement during blood vessel formation, showing that tip cells and trailing cells move at different speeds and directions. This study provides new insights into the complex cellular motion involved in blood vessel proliferation.

Creality K1 Max 3D Printer

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How fish minimize their visibility to predators in open waters

Researchers found that certain fish species exhibit lower polarization contrast with their backgrounds, making them harder to spot. The platelets in these fish align on vertical axes to reflect downward-directed light and diffuse horizontal-axis light, providing enhanced camouflage abilities.

Intelligent gel attacks cancer

Researchers at the University of Montreal Hospital Research Centre have developed a new injectable biogel that can deliver anti-cancer agents directly into cancerous tumours. The biogel is effective in killing cancer cells and has shown promising results in laboratory tests, including the destruction of melanoma and kidney cancer cells.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

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PLOS Genetics Research Prize 2015 winner announced

The PLOS Genetics Research Prize 2015 was awarded to Barroso-Batista et al. for their study on the adaptation of E. coli to the gut, which found that clonal interference dominates early stages of adaptation. The research used mice as hosts and demonstrated high reproducibility in populations evolving in different mice.

Parasitic worms affect human reproduction

A new study suggests parasitic worms can impact human reproduction rates, with roundworms increasing childbearing by up to two more children than uninfected women, while hookworms decrease it by up to three fewer children.

Deciphering the role of brain layers

A recent study published in Neuron shows that brain layers facilitate the rapid development of neuronal circuits, but are not essential for establishing cell-type specific connections. The researchers used zebrafish as a model system to demonstrate this and found that layer formation is necessary for speeding up circuit assembly.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Piping plovers losing breeding habitat to wetland drainage

A new USGS study reveals that piping plovers are likely losing their breeding habitat in the Great Plains due to wetland drainage and climate change. The research found that consolidation drainage results in fewer and fuller wetlands with less shoreline nesting space for the species.

AmScope B120C-5M Compound Microscope

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'Rat vision' may give humans best sight of all

Researchers found that human brains have a subset of cells that fire in response to inputs from both eyes, similar to those in rodents. This discovery suggests that humans have the best possible visual system, with primitive pathways allowing for quick spotting of danger and complex behaviors.

Researchers receive $9.6 million for program to strengthen families

The Show-Me Healthy Marriages and Relationships program aims to improve parenting skills, economic stability, and personal well-being in low-resource Missouri residents. Through a five-year project, 2,000 participants will receive wrap-around services, including relationship education classes and text messaging support.

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

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