Showing 20 articles starting at article 1941

< Previous 20 articles        Next 20 articles >

Categories: Biology: Marine, Biology: Microbiology

Return to the site home page

     (via sciencedaily.com) 

For mosquito-borne diseases such as dengue fever, the abundance of the insects in places where people gather has long served as the main barometer for infection risk. A new study, however, suggests that the number of 'hidden' infections tied to a place, or cases of infected people who show no symptoms, is the key indicator for dengue risk.

     (via sciencedaily.com) 

An unusually severe form of toxoplasmosis killed four sea otters and could pose a threat to other marine wildlife and humans, finds a new study.

     (via sciencedaily.com) 

Researchers have 'hacked' the earliest stages of photosynthesis, the natural machine that powers the vast majority of life on Earth, and discovered new ways to extract energy from the process, a finding that could lead to new ways of generating clean fuel and renewable energy.

     (via sciencedaily.com)     Original source 

Researchers behind the UK's first pilot public health surveillance system based on analysis of wastewater say that routine monitoring at sewage treatment works could provide a powerful early warning system for the next flu or norovirus epidemic, alerting hospitals to prepare and providing public health agencies with vital health information.

     (via sciencedaily.com) 

A mosquito known only by its scientific name, Culex lactator, is the latest to establish in the Sunshine State, according to a new study.

     (via sciencedaily.com) 

Beetles are champions at surviving in extremely dry environments. In part, this property is due to their ability to suck water from the air with their rear ends. A new study explains just how. Beyond helping to explain how beetles thrive in environments where few other animals can survive, the knowledge could eventually be used for more targeted and delicate control of global pests such as the grain weevil and red flour beetle.

     (via sciencedaily.com) 

Shigellosis, a highly contagious diarrheal disease, is caused by Shigella bacteria circulating in industrializing countries but also in industrialized countries. Scientists who have been monitoring Shigella in France for several years have detected the emergence of extensively drug-resistant (XDR) strains of Shigella sonnei.

     (via sciencedaily.com) 

Fewer parasites in U.S. waters might be seen by many as a good thing, but a biologist says the trend signals potential danger for fish and other wildlife.

     (via sciencedaily.com) 

Future ocean warming and marine heatwaves could impact the growth and development of clownfish during their earliest life stages, suggests a new study.

     (via sciencedaily.com) 

Researchers confirmed what was already known: jellyfish eat bigger prey as they grow, which means they also occupy a higher position in the food web as they grow. They also found that some of the concentrations of 'healthy fats,' increase as jellyfish grow. These changes might be influenced by their diet, and as they feed on bigger prey with higher levels of fatty acids, the jellyfish accumulate more of these fatty acids.

     (via sciencedaily.com) 

The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has contributed to their decline, which has continued as surrounding killer whale populations expand, according to new research.

     (via sciencedaily.com) 

New research is beginning to unravel the times of year and locations where whales are at greatest danger of entanglement in fishing gear on the Oregon Coast.

     (via sciencedaily.com) 

Parasitic infections in salmonid fish can increase or decrease their vulnerability to angling, depending on their body condition.

     (via sciencedaily.com) 

A new substance has proven useful for treating staphylococcus infections in people with skin lymphoma. This is good news for the patients, but also for the global threat of antibiotics resistance.

     (via sciencedaily.com) 

Noise from human activities is harming ocean invertebrates and ecosystems, new research shows.

     (via sciencedaily.com) 

The ability of a cell to divide, to proliferate, is essential for life and gives rise to the formation of complex organisms from a single cell. It also allows the replacement of used cells from a limited number of 'stem' cells, which then proliferate and specialize. In cancer, however, cell proliferation is no longer controlled and becomes chaotic. Researchers have discovered that, in a healthy individual, certain blood immune cells, the monocytes, also have this ability to proliferate, with the aim to replace tissue macrophages, which are essential for the proper functioning of our body.

     (via sciencedaily.com) 

Leading edge technology has uncovered secrets about a world-renowned fossil hoard that could offer vital clues about early life on Earth. Researchers who analyzed the 400 million-year-old cache, found in rural north-east Scotland, say their findings reveal better preservation of the fossils at a molecular level than was previously anticipated.

     (via sciencedaily.com) 

An international research team produced the first large-scale analysis of more than 400 newly sequenced and existing Omnitrophota genomes, uncovering new details about their biology and behavior.

     (via sciencedaily.com) 

It has long been known that viral infections can be more severe in males than females, but the question as to why has remained a mystery -- until possibly now. Researchers have found that female mouse and human Natural Killer cells have an extra copy of an X chromosome-linked gene called UTX. UTX acts as an epigenetic regulator to boost NK cell anti-viral function, while repressing NK cell numbers.

     (via sciencedaily.com) 

Pneumococcal disease leads to over three million hospitalizations and hundreds of thousands of deaths annually. A new study suggests that the FDA-approved drug Fomepizole may reduce disease severity in the lungs of mice with some forms of bacterial pneumonia and enhance the efficacy of the antibiotic erythromycin as well.