Science and Technology

Prolonged spaceflight could weaken astronauts' immune systems

Science Daily - 7 hours 56 min ago
Researchers report impaired NK-cell function during long-duration space travel.

New science details discovery of bacterial pathogen in brains of Alzheimer's patients

Science Daily - 8 hours 50 min ago
New science uncovers how an unlikely culprit, Porphyromonas gingivalis (Pg) -- the bacterium commonly associated with chronic gum disease -- appears to drive Alzheimer's disease (AD) pathology.

When coral species vanish, their absence can imperil surviving corals

Science Daily - 10 hours 5 min ago
As coral species die off, they may be leaving a death spiral in their wake: Their absence could be sapping life from the corals that survive. In a new study, when isolated from other species, corals got weak, died off or grew in fragile structures. The study has shown it is possible to quantify positive effects of coral biodiversity and negative effects of its absence.

Taking magnetism for a spin: Exploring the mysteries of skyrmions

Science Daily - 10 hours 5 min ago
Scientists have discovered the relaxation dynamics of a zero-field state in skyrmions, a spinning magnetic phenomenon that has potential applications in data storage and spintronic devices.

Cancer has a biological clock and this drug may keep it from ticking

Science Daily - 10 hours 55 min ago
Scientists find and test a promising drug that stops cancer by interfering with the cancer cells' metabolism and other circadian-related functions.

Those with inadequate access to food likely to suffer from obesity

Science Daily - 10 hours 55 min ago
Researchers have assessed the link between food-related hardships and obesity. Using a national sample of adults across the United States, the researchers learned that individuals who are food insecure are at an increased risk of obesity. Study results also showed that the individuals who live in food deserts are at an elevated risk for obesity.

Planetary collision that formed the moon made life possible on Earth

Science Daily - 10 hours 55 min ago
Most of Earth's life-essential elements probably arrived with the planetary collision that produced the moon. Petrologists now conclude Earth most likely received the bulk of its carbon, nitrogen and other life-essential volatile elements from a collision with a Mars-sized planet more than 4.4 billion years ago.

Birth of massive black holes in the early universe

Science Daily - 23/01/2019
The light released from around the first massive black holes in the universe is so intense that it is able to reach telescopes across the entire expanse of the universe. Incredibly, the light from the most distant black holes (or quasars) has been traveling to us for more than 13 billion light years. However, we do not know how these monster black holes formed.

CRISPR/Cas9 used to control genetic inheritance in mice

Science Daily - 23/01/2019
Using active genetics technology, biologists have developed the world's first CRISPR/Cas9-based approach to control genetic inheritance in a mammal. The achievement in mice lays the groundwork for further advances based on this technology, including biomedical research on human disease. Future animal models may be possible of complex human genetic diseases, like arthritis and cancer, which are not currently possible.

Old cells repair damage in the brains of MS patients

Science Daily - 23/01/2019
A new study shows that there is a very limited regeneration of cells in the brain of patients diagnosed with multiple sclerosis (MS). These findings underline the importance of treating MS at an early stage of the disease progression, when the affected cells can repair the damage as they are not replaced by new ones.

Scientists reconstruct ancient lost plates under Andes mountains

Science Daily - 23/01/2019
Geologists demonstrate the reconstruction of the subduction of the Nazca Ocean plate, the remnants of which are currently found down to 1,500 kilometers, or about 900 miles, below the Earth's surface. Their results show that the formation of the Andean mountain range was more complicated than previous models suggested.

Study sheds light on brain cell changes in people with MS

Science Daily - 23/01/2019
Fresh insights into the types of cells found in the brains of people with multiple sclerosis could help develop improved therapies, research has found. The study focused on cells in the brain that help to repair damage to nerve cells caused by the disease.

New water splitting catalyst could make it easier to generate solar fuel

Science Daily - 23/01/2019
Water splitting, the process of harvesting solar energy to generate energy-dense fuels, could be simplified thanks to new research.

In surprising reversal, scientists find a cellular process that stops cancer before it starts

Science Daily - 23/01/2019
Scientists studying the relationship of telomeres to cancer made a surprising discovery: a cellular recycling process called autophagy -- generally thought of as a survival mechanism -- actually promotes the death of cells, thereby preventing cancer initiation.

Small metabolites have big effects on the intestinal immune response

Science Daily - 23/01/2019
Normal gut bacteria are instrumental in inducing an immune response in the presence of invading pathogens. However, exactly how commensal bacteria cause CX3CR1+ macrophages in the intestine to protrude their tentacle-like dendrites to capture antigens, triggering the immune response, was unclear. Now, a research team has shown that common bacterial metabolites pyruvate and lactate interact with the GPR31 receptor on CX3CR1+ cells, enhancing the immune response and protecting against gut pathogens.

Climate change tipping point could be coming sooner than we think

Science Daily - 23/01/2019
A new study confirms the urgency to tackle climate change. While it's known that extreme weather events can affect the year-to-year variability in carbon uptake, and some researchers have suggested that there may be longer-term effects, this study is the first to actually quantify the effects through the 21st century and demonstrates that wetter-than-normal years do not compensate for losses in carbon uptake during dryer-than-normal years, caused by events such as droughts or heatwaves.

Flu vaccination keeps COPD patients out of the hospital

Science Daily - 23/01/2019
A new study establishes that patients with chronic obstructive pulmonary disease (COPD) face heightened risks of death, critical illness, and hospitalization if they develop the flu and demonstrates the beneficial effects of influenza vaccination. The report also reveals gaps in care that need to be addressed, including less-than-universal influenza vaccination in patients with COPD and failure to provide an antiviral medication in a timely manner once the patient is diagnosed with the flu.

Now, an app to help the visually impaired

The Hindu:Science - 23/01/2019
In a bid to assist visually impaired people to easily determine denomination of currency notes, the Indian Institute of Technology at Ropar in Punjab

ISRO’s first mission of 2019 to put military satellite Microsat-R in space

The Hindu:Science - 23/01/2019
130-kg Microsat-R put together by a handful of DRDO laboratories.

Protein engineering extends the language of immune cells

Science Daily - 23/01/2019
Small infections can be fatal: Millions of people die each year from sepsis, an overreaction of the immune system. A new immune signaling molecule now provides the basis for potential new approaches in sepsis therapy.


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