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49 articles from ScienceDaily
Mixture and migration brought food production to sub-Saharan Africa
- ScienceDaily
- 20/6/12 23:22
A new interdisciplinary study reports on 20 newly sequenced ancient genomes from sub-Saharan Africa, including the first genomes from the Democratic Republic of the Congo, Botswana, and Uganda. The study documents the coexistence, movements, interactions and admixture of diverse human groups during the spread of food production in sub-Saharan Africa.
Discovery of oldest bow and arrow technology in Eurasia
- ScienceDaily
- 20/6/12 23:22
The origins of human innovation have traditionally been sought in the grasslands and coasts of Africa or the temperate environments of Europe. More extreme environments, such as the tropical rainforests of Asia, have been largely overlooked, despite their deep history of human occupation. A new study provides the earliest evidence for bow-and-arrow use, and perhaps the making of clothes, outside...
Scientists uncover immune cells that may lower airway allergy and asthma risk
- ScienceDaily
- 20/6/12 23:22
Scientists offer a clue to why non-allergic people don't have a strong reaction to house dust mites. They've uncovered a previously unknown subset of T cells that may control allergic immune reactions and asthma from ever developing in response to house dust mites -- and other possible allergens.
Personality traits linked to toilet paper stockpiling
- ScienceDaily
- 20/6/12 23:22
People who feel more threatened by COVID-19 and rank highly on scales of emotionality and conscientiousness were most likely to stockpile toilet paper in March 2020, according to a new study.
Elastomeric masks provide a more durable, less costly option for health care workers
- ScienceDaily
- 20/6/12 23:22
A cost-effective strategy for health care systems to offset N95 mask shortages due to COVID-19 is to switch to reusable elastomeric respirator masks.
COVID-19 may trigger new diabetes, experts warn
- ScienceDaily
- 20/6/12 23:22
Emerging evidence suggests that COVID-19 may actually trigger the onset of diabetes in healthy people and also cause severe complications of pre-existing diabetes.
Self-swabbing tests for COVID-19 accurate and safe, study reports
- ScienceDaily
- 20/6/12 23:22
Test samples collected by people who swabbed their own nasal passages yielded results for the COVID-19 virus that were as accurate as samples collected by a health care worker, according to a small study.
As rare animals disappear, scientist faces 'ecological grief'
- ScienceDaily
- 20/6/12 23:22
Five years before the novel coronavirus ran rampant around the world, saiga antelopes from the steppes of Eurasia experienced their own epidemic.
Insight into the black hole at the center of our galaxy
- ScienceDaily
- 20/6/12 23:22
Like most galaxies, the Milky Way hosts a supermassive black hole at its center. Called Sagittarius A*, the object has captured astronomers' curiosity for decades. And now there is an effort to image it directly.
Up to 45 percent of SARS-CoV-2 infections may be asymptomatic
- ScienceDaily
- 20/6/12 23:22
Asymptomatic infections may have played a significant role in the early and ongoing spread of COVID-19 and highlight the need for expansive testing and contact tracing to mitigate the pandemic.
Protecting bays from ocean acidification
- ScienceDaily
- 20/6/12 23:22
As oceans absorb more human-made carbon dioxide from the air, a process of ocean acidification occurs that can have a negative impact on marine life. But coastal waterways, such as Chesapeake Bay, can also suffer from low oxygen and acidification. New research identifies one way to protect these waterways -- the presence of submerged aquatic vegetation (SAV).
New algorithm uses artificial intelligence to help manage type 1 diabetes
- ScienceDaily
- 20/6/12 23:22
Researchers and physicians have designed a method to help people with type 1 diabetes better manage their glucose levels. The method relies upon artificial intelligence and automated monitoring.
Parasites and the microbiome
- ScienceDaily
- 20/6/12 23:22
In a study of ethnically diverse people from Cameroon, the presence of a parasite infection was closely linked to the make-up of the gastrointestinal microbiome, according to a research team.
Face masks critical in preventing spread of COVID-19
- ScienceDaily
- 20/6/12 23:22
A study has found that not wearing a face mask dramatically increases a person's chances of being infected by the COVID-19 virus.
Researchers uncover cancer cell vulnerabilities; may lead to better cancer therapies
- ScienceDaily
- 20/6/12 23:12
A new study reveals a protein responsible for genetic changes resulting in a variety of cancers, may also be the key to more effective, targeted cancer therapy.
Novel mechanism triggers a cellular immune response
- ScienceDaily
- 20/6/12 18:01
Researchers present comprehensive evidence that supports a novel trigger for a cell-mediated response and propose a mechanism for its action.
Water bacteria have a green thumb
- ScienceDaily
- 20/6/12 17:14
A research team has discover new natural products that bacteria in water use to regulate the growth of competing organisms.
Radioactive cloud over Europe had civilian background
- ScienceDaily
- 20/6/12 17:14
A mysterious cloud containing radioactive ruthenium-106, which moved across Europe in 2017, is still bothering Europe's radiation protection entities. German researchers now found out that the cloud did not originate from military sources but rather from civilian nuclear activities.
Fuel walking and cycling with low carbon diets
- ScienceDaily
- 20/6/12 17:14
Walking and cycling have many benefits and help reduce greenhouse gas emissions, but researchers say we need to think about what people eat to fuel their walking and cycling.
Remixed mantle suggests early start of plate tectonics
- ScienceDaily
- 20/6/12 17:14
New research on the remixing of Earth's stratified deep interior suggests that global plate tectonic processes, which played a pivotal role in the existence of life on Earth, started to operate at least 3.2 billion years ago.
New approach to DNA data storage makes system more dynamic, scalable
- ScienceDaily
- 20/6/12 17:14
Researchers have developed a fundamentally new approach to DNA data storage systems, giving users the ability to read or modify data files without destroying them and making the systems easier to scale up for practical use.
New approach to turning on the heat in energy-burning fat cells
- ScienceDaily
- 20/6/12 17:14
Researchers have discovered a new set of signals that cells send and receive to prompt one type of fat cell to convert fat into heat. The signaling pathway, discovered in mice, has potential implications for activating this same type of thermogenic fat in humans.
Plant cell gatekeepers' diversity could be key to better crops
- ScienceDaily
- 20/6/12 17:14
Scientists have shed new light on how the network of gatekeepers that controls the traffic in and out of plant cells works, which they think is key to develop food crops with bigger yields and greater ability to cope with extreme environments.
Cytokine implicated in HLH treatment resistance
- ScienceDaily
- 20/6/12 17:14
Research sheds light on cytokine storm syndromes and how ruxolitinib may benefit patients with hemophagocytic lymphohistiocytosis.
Repairing thousands of disease-causing mutations
- ScienceDaily
- 20/6/12 17:14
Researchers have created a new searchable library of base editors -- an especially efficient and precise kind of genetic corrector. Using experimental data from editing more than 38,000 target sites in cells with 11 of the most popular base editors (BEs), they created a machine learning model that accurately predicts base editing outcomes. Called BE-Hive, the library is free and open to the...