Showing 20 articles starting at article 921

< Previous 20 articles        Next 20 articles >

Categories: Biology: Biochemistry, Geoscience: Geography

Return to the site home page

     (via sciencedaily.com)     Original source 

Cells constantly navigate a dynamic environment, facing ever-changing conditions and challenges. But how do cells swiftly adapt to these environmental fluctuations? A new study is answering that question by challenging our understanding of how cells function. A team of researchers suggests that cells possess a previously unknown information processing system that allows them to make rapid decisions independent of their genes.

     (via sciencedaily.com)     Original source 

Researchers have made a breakthrough for evolutionary biology of the Solanaceae family, which includes peppers, potatoes and petunias.

     (via sciencedaily.com)     Original source 

Every cuckoo is an adopted child -- raised by foster parents, into whose nest the cuckoo mother smuggled her egg. The cuckoo mother is aided in this subterfuge by her resemblance to a bird of prey. There are two variants of female cuckoos: a gray morph that looks like a sparrowhawk, and a rufous morph. Male cuckoos are always gray.

     (via sciencedaily.com)     Original source 

A new way of quickly distinguishing between illegal elephant ivory and legal mammoth tusk ivory could prove critical to fighting the illegal ivory trade. A laser-based approach could be used by customs worldwide to aid in the enforcement of illegal ivory from being traded under the guise of legal ivory.

     (via sciencedaily.com)     Original source 

The beginning of life is shrouded in mystery. While the intricate dynamics of mitosis is well-studied in the so-called somatic cells -- the cells that have a specialized function, like skin and muscle cells -- they remain elusive in the first cells of our bodies, the embryonic cells. Embryonic mitosis is notoriously difficult to study in vertebrates, as live functional analyses and -imaging of experimental embryos are technically limited, which makes it hard to track cells during embryogenesis.

     (via sciencedaily.com)     Original source 

Their first vocalizations help young zebra finch males to memorize the songs of adults.

     (via sciencedaily.com)     Original source 

New research has highlighted the profound link between dietary choices and brain health.

     (via sciencedaily.com)     Original source 

Countries with limited potential for renewables could save up to 20 percent of costs for green steel and up to 40 percent for green chemicals from green hydrogen if they relocated their energy-intensive production and would import from countries where renewable energy is cheaper.

     (via sciencedaily.com)     Original source 

Researchers have created a new vaccine candidate to treat staph and MRSA infections.

     (via sciencedaily.com)     Original source 

The single-celled organism Naegleria fowleri ranks among the deadliest human parasites. Researchers have now discovered viruses that infect this harmful microbe. Named Naegleriavirus, these belong to the giant viruses, a group known for their unusually large particles and complex genomes.

     (via sciencedaily.com)     Original source 

The enzyme PI3K plays a critical role in cell migration. Scientists have long understood this function. But researchers have recently unveiled that a subunit of this enzyme also has the ability to slam on the breaks to this process.

     (via sciencedaily.com)     Original source 

A new study sheds light on how parasites, often overlooked, can dramatically affect the balance between predator and prey populations. Researchers developed a groundbreaking mathematical framework that predicts when predators, prey, and parasites can coexist, considering factors like random fluctuations and parasite effects on both populations. This research provides a valuable tool for conservation by helping predict how parasites influence ecosystem resilience and informing strategies to protect vulnerable species.

     (via sciencedaily.com)     Original source 

As wildfires in Siberia become more common, global climate modeling estimates significant impacts on climate, air quality, health, and economies in East Asia and across the northern hemisphere.

     (via sciencedaily.com)     Original source 

Researchers explain the genomic and developmental basis of the patagium, the thin skin membrane that allows some mammalian species to soar through the air.

     (via sciencedaily.com)     Original source 

Bioluminescence first evolved in animals at least 540 million years ago in a group of marine invertebrates called octocorals, according to the results of a new study. The study focuses on an ancient group of marine invertebrates that includes soft corals, pushes back the previous oldest dated example of trait by nearly 300 million years.

     (via sciencedaily.com)     Original source 

Warming temperatures are causing a steady rise in copper, zinc and sulfate in the waters of Colorado mountain streams affected by acid rock drainage. Concentrations of these metals have roughly doubled in these alpine streams over the past 30 years, presenting a concern for ecosystems, downstream water quality and mining remediation, according to a new study. Natural chemical weathering of bedrock is the source of the rising acidity and metals, but the ultimate driver of the trend is climate change, the report found, and the results point to lower stream volumes and exposure of rock once sealed away by ice as the likely causes.

     (via sciencedaily.com)     Original source 

Researchers describe the steps they took to manipulate DNA and proteins -- essential building blocks of life -- to create cells that look and act like cells from the body. This accomplishment, a first in the field, has implications for efforts in regenerative medicine, drug delivery systems and diagnostic tools.

     (via sciencedaily.com)     Original source 

A study of shallow-water fish communities on rocky reefs in south-eastern Australia has found climate change is helping tropical fish species invade temperate Australian waters.

     (via sciencedaily.com)     Original source 

A new study has revealed breeding less-flatulent cows and restoring agricultural land could significantly reduce rising methane emission levels, which play a considerable role in climate change.

     (via sciencedaily.com)     Original source 

A research team has synthesized a lysin that during in vitro experiments targets bacteria responsible for producing odors in human armpits.