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Science News Archive July 2019


Page 36 of 41

More 'reactive' land surfaces cooled the Earth down

A new study suggests that increased reactivity of land surfaces led to a decrease in CO2 in the atmosphere, resulting in cooling. The researchers used isotope analysis and computer modeling to show that constant rock weathering was not the primary cause of the temperature drop before the last ice age.

Apple iPhone 17 Pro

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Ancient DNA sheds light on the origins of the Biblical Philistines

A team of scientists analyzed ancient genomes from Ashkelon, finding a European-derived ancestry introduced around the time of the Philistines' arrival. This genetic component was diluted by local Levantine gene pool over centuries, suggesting intense admixture between foreign and native populations.

How to sell labriculture: Less lab, more culture

Researchers warn that framing cultured meat as a high-tech innovation can lead to negative attitudes and reduced consumer demand. The study found that those who encountered cultured meat through this frame were less likely to consider it safe, healthy, or environmentally friendly.

HIV infection may increase heart failure and stroke risk

A large health insurance database analysis reveals people living with HIV have a significantly higher risk of heart failure and stroke. Researchers found a 3.2-times increased risk of heart failure and 2.7-times increased risk of stroke in those living with HIV compared to uninfected individuals.

Pain signaling in humans more rapid than previously known

A new study published in Science Advances found that humans have a rapid pain-signaling system that can conduct nerve signals as fast as touch signals. Researchers identified ultrafast pain receptors with properties similar to those of touch-sensitive nerve cells, which were connected to pain centers in the brain.

Sony Alpha a7 IV (Body Only)

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Smokers three times likely to die from heart disease

A new study by Australian National University found that smoking harms all of the cardiovascular system, including the heart and major blood vessels. Quitting smoking markedly reduces risk of heart attacks, strokes, and dying from cardiovascular disease.

Researchers save images not with a microchip, but with metabolites

Scientists have successfully encoded and decoded digital images using metabolites, demonstrating a potential alternative to microchips for data storage. The study achieves an accuracy rate of 98-99.5%, encoding over 100,000 bits of information into synthetic metabolomes.

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Milk and dairy products can help prevent chronic disease

A systematic review found that moderate milk and dairy consumption during pregnancy and childhood can reduce the risk of frailty, sarcopenia, and certain types of cancer. The study also suggested that low-fat dairy products may have a protective effect against cardiovascular disease and type 2 diabetes.

Black (nano)gold combat climate change

Researchers at Tata Institute of Fundamental Research have developed black (nano)gold that can catalyze CO2 conversion to methane at atmospheric pressure and temperature, utilizing solar energy. The material exhibits significant effects on purification of seawater, protein unfolding, and chemical reactions.

Aranet4 Home CO2 Monitor

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Does marital status affect prognosis after breast cancer diagnosis?

A study of 298,434 patients found that married women had a better prognosis after breast cancer diagnosis compared to single or divorced patients. Single patients showed improved outcomes only among white patients and those aged over 35 with hormone receptor-positive tumors.

CFTR inhibition: The key to treating bile acid diarrhea?

Researchers found that CFTR inhibitors, including investigational drug (R)-BPO-27, can fully block the increased CFTR activity caused by chenodeoxycholic acid. This inhibition reduces excessive secretion in the colon due to bile acids, offering a new therapeutic option for patients with conditions like Crohn's disease and IBS-D.

AmScope B120C-5M Compound Microscope

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Celestron NexStar 8SE Computerized Telescope

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Activity of fuel cell catalysts doubled

Researchers at TUM have developed platinum nanoparticles that double the performance of current fuel cells. The particles are about one nanometer big and contain approximately 40 platinum atoms, resulting in high mass activity. This breakthrough could lead to widespread adoption of fuel cells in electric cars.

Perfect timing: Making the 'switch' from juvenile to adult

Researchers identified a new developmental timing mechanism involving a long non-coding RNA in the microscopic roundworm C. elegans that controls the timing of sex-specific changes and behavior. The discovery provides insight into how genetic cues regulate the transition to adulthood in humans.

New study unravels protection mechanism in bacteria

A recent study by the University of Birmingham has identified a key pathway involved in protecting bacteria against antibiotics. The researchers discovered that phospholipids are transported towards the outer membrane through a series of proteins, which could lead to the development of new antibiotic treatments.

GQ GMC-500Plus Geiger Counter

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Taking to the treadmill can ease period pain

A new study published in Contemporary Clinical Trials found that treadmill exercise reduced period pain by 6% after four weeks and 22% after seven months. Women who participated in the supervised aerobic training regime also reported improved quality of life and daily functioning, but not increased sleep quality.

Credit counseling may help reduce consumer debt

A new study found that nonprofit credit counseling significantly reduces household debt and improves credit scores for counseled individuals. The research also showed a substantial decline in debt relative to non-counseled individuals.

CEO political activism -- Jobseekers want bosses who take a stand

A new study found that jobseekers are more likely to want to work for a company where the CEO takes a principled stance on political issues. The effect is true regardless of age, education, gender, or political orientation. Employees value humanistic values and expect goodwill from companies run by CEOs who engage in such activism.

Garmin GPSMAP 67i with inReach

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Joslin researchers uncover protective factor in diabetic eye disease

Researchers at Joslin Diabetes Center have identified a protein found in the eye that protects against and potentially treats diabetic eye disease. Retinol Binding Protein 3 (RBP3) prevents the development of diabetic retinopathy, and introducing it early can reverse the effects of the complication in rodent models.

Saving Beethoven

Researchers at Harvard Medical School developed a precise gene-editing tool to target the faulty Tmc1 gene in Beethoven mice, achieving an unprecedented level of accuracy. The treatment successfully preserved hearing in mice with hereditary deafness, paving the way for potential treatments of other dominantly inherited genetic diseases.

Meta Quest 3 512GB

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Imprinted spheres fight breast cancer

Researchers developed molecularly imprinted nanoparticles that selectively bind to HER2 receptors, inhibiting tumor cell multiplication and growth. The particles were produced using a special method and demonstrated significant efficacy in reducing tumor growth in vitro and in mice.

Diet quality may affect risk of frailty in older adults

A study published in the Journal of the American Geriatric Society found that poorer overall diet quality was associated with a higher incidence of frailty in older adults. Improving diet quality may help lower the risk of frailty, with good-quality diets shown to have a significantly lower risk compared to poor- and medium-quality diets.

Fluke 87V Industrial Digital Multimeter

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

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Reprogramming pancreatic cancer

Researchers discover a novel compound that activates CD11b receptors on white blood cells, promoting an anti-tumor immune response and overcoming resistance to immunotherapies. This breakthrough may lead to new treatments for the third deadliest cancer in the US.

Timing of exercise may be key to successful weight loss

A recent study of 375 adults found that exercising at a consistent time of day was associated with higher physical activity levels. The research suggests promoting daily routine consistency may be essential for achieving and sustaining weight loss.

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.

Super-resolution microscopy illuminates associations between chromosomes

Scientists have used super-resolution microscopy to identify physical connections between five human chromosomes, revealing a shared sequence encoding ribosomal DNA that holds the chromosomes together. The findings suggest that these inter-chromosomal linkages are pervasive in healthy and diseased tissue, and may play a role in chromos...

Are self-driving cars really the answer for older drivers?

Research found that older drivers took longer to regain control of an automated car and exhibited worse takeover quality in bad weather. However, most were positive towards automated vehicles, wanting to retain some control and regular updates.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

WVU researchers map crystals to advance treatments for stroke, diabetes, dementia

Researchers at WVU have mapped the crystal structure of a protein called mitoNEET, which inhabits the outer membrane of mitochondria. This discovery could lead to disease-modifying treatments for Alzheimer's disease, stroke, and diabetes. The study uses advanced X-ray techniques to understand how molecules interact with the protein.