New Bioimaging technique is fast and economical
SCIENCE DAILY
A new approach to optical imaging makes it possible to quickly and economically monitor multiple molecular interactions in a large area of living tissue -- such as an organ or a small animal; technology...
A new approach to optical imaging makes it possible to quickly and economically monitor multiple molecular interactions in a large area of living tissue -- such as an organ or a small animal; technology that could have applications in medical...
11 hours
Millions of Americans to gaze upon Monday's once-in-a-lifetime eclipse
REUTERS
(Reuters) - Twilight will fall at midday on Monday, stars will glimmer and birds will roost in an...
(Reuters) - Twilight will fall at midday on Monday, stars will glimmer and birds will roost in an eerie stillness as millions of Americans and visitors witness the first total solar eclipse to traverse the United States from coast to...
14 hours
Here's What It's Like to Be the Planetary Protection Officer at NASA
SPACE.COM
John Rummel, a biology professor at East Carolina University, reflects on his experiences as NASA's planetary protection officer, a job that requires a lot...
John Rummel, a biology professor at East Carolina University, reflects on his experiences as NASA's planetary protection officer, a job that requires a lot of science, but no alien combat.
14 hours
New technique quickly, economically monitors multiple molecular interactions in living tissues
NEWS MEDICAL
A new approach to optical imaging makes it possible to quickly and economically monitor multiple molecular interactions in a large area of living tissue -- such...
A new approach to optical imaging makes it possible to quickly and economically monitor multiple molecular interactions in a large area of living tissue -- such as an organ or a small animal; technology that could have applications in medical...
1 day
Eggshell-like mineral layer on avian flu viruses may be cause for human infections
NEWS MEDICAL
Avian flu can be transmitted from birds to humans; transmission among humans, however, is limited. The reason may be an eggshell-like mineral...
Avian flu can be transmitted from birds to humans; transmission among humans, however, is limited. The reason may be an eggshell-like mineral layer that the virus acquires due to the high calcium concentration in the intestines of birds.
1 day
New bioimaging technique is fast and economical
PHYS.ORG
A new approach to optical imaging makes it possible to quickly and economically monitor multiple molecular interactions in a large area of living tissue—such as an organ or a small animal; technology that could...
A new approach to optical imaging makes it possible to quickly and economically monitor multiple molecular interactions in a large area of living tissue—such as an organ or a small animal; technology that could have applications in medical diagnosis, guided...
1 day
Ocean channel in Bahamas marks genetic divide in Brazilian free-tailed bats
PHYS.ORG
Brazilian free-tailed bats are expert flyers, capable of migrating hundreds of miles and regularly traveling more than 30 miles a night. But they pull up short...
Brazilian free-tailed bats are expert flyers, capable of migrating hundreds of miles and regularly traveling more than 30 miles a night. But they pull up short at a narrow ocean channel that cuts across the Bahamas, dividing bat populations that...
1 day
Ocean channel in Bahamas marks genetic divide in Brazilian free-tailed bats
SCIENCE DAILY
Brazilian free-tailed bats are expert flyers, capable of migrating hundreds of miles and regularly traveling more than 30 miles a night. But they pull up short...
Brazilian free-tailed bats are expert flyers, capable of migrating hundreds of miles and regularly traveling more than 30 miles a night. But they pull up short at a narrow ocean channel that cuts across the Bahamas, dividing bat populations that...
1 day
Zika virus activates de novo and cross-reactive memory B cell responses in dengue-experienced donors
Science Magazine
Zika virus (ZIKV) shares a high degree of homology with dengue virus (DENV), suggesting that preexisting immunity to DENV could...
Zika virus (ZIKV) shares a high degree of homology with dengue virus (DENV), suggesting that preexisting immunity to DENV could affect immune responses to ZIKV. We have tracked the evolution of ZIKV-induced B cell responses in three DENV-experienced donors. The...
1 day
Will Animals Freak Out During the Eclipse?
LIVE SCIENCE
Humans aren't the only ones who get spooked during a solar eclipse; animals may change their behavior too, research shows.
Humans aren't the only ones who get spooked during a solar eclipse; animals may change their behavior too, research shows.
1 day
Research identifies new gene fusions and mutations linked to GIST tumors
NEWS MEDICAL
Researchers at UC San Diego Moores Cancer Center, with colleagues from Memorial Sloan Kettering Cancer Center and Fox Chase Cancer Center, have determined that a specific...
Researchers at UC San Diego Moores Cancer Center, with colleagues from Memorial Sloan Kettering Cancer Center and Fox Chase Cancer Center, have determined that a specific region of the small bowel, called the duodenal-jejunal flexure or DJF, shows a high...
1 day
Two-step process leads to cell immortalization and cancer
SCIENCE DAILY
Immortalization of cells is a necessary step in the development of cancer, and scientists think that the main cause is turning on an enzyme -- telomerase -- that lengthens chromosomal telomeres and...
Immortalization of cells is a necessary step in the development of cancer, and scientists think that the main cause is turning on an enzyme -- telomerase -- that lengthens chromosomal telomeres and prevents normal cell death. A new study shows...
1 day
Viruses and aphids that help crops? Scientists think it may be possible
SCIENCE DAILY
Scientists are making an effort to help corn stand up to stress brought on by drought and disease by using viruses and aphids to...
Scientists are making an effort to help corn stand up to stress brought on by drought and disease by using viruses and aphids to activate desirable traits. It’s speculative research that could yield new insight into how viruses, insects and...
1 day
Gene variant activity is surprisingly variable between tissues
SCIENCE DAILY
Every tissue has its own pattern of active alleles, a large-scale study has found. Researchers were able to show that the differential allele activity is regulated by tissue-specific, regulatory DNA elements known...
Every tissue has its own pattern of active alleles, a large-scale study has found. Researchers were able to show that the differential allele activity is regulated by tissue-specific, regulatory DNA elements known as enhancers - a process that could also...
1 day
Histone 1, the guardian of genome stability
SCIENCE DAILY
Genomic instability is the main risk factor for tumor development in humans. Therefore understanding its origin and and exploring therapeutic targets is paramount. Histone 1 silences a region of the genome that causes irreparable...
Genomic instability is the main risk factor for tumor development in humans. Therefore understanding its origin and and exploring therapeutic targets is paramount. Histone 1 silences a region of the genome that causes irreparable DNA damage when translated and is...
1 day
Mechanisms explaining positional diversity of the hindlimb in tetrapod evolution
SCIENCE DAILY
Elucidating how body parts in their earliest recognizable form are assembled in tetrapods during development is essential for understanding the nature of morphological evolution. Researchers found in eight...
Elucidating how body parts in their earliest recognizable form are assembled in tetrapods during development is essential for understanding the nature of morphological evolution. Researchers found in eight tetrapod species that the position of the sacral vertebrae and the hindlimbs...
1 day
Mineral layer around avian flu pathogen may be the cause for human infections
SCIENCE DAILY
Avian flu can be transmitted from birds to humans; transmission among humans, however, is limited. The reason may be an eggshell-like mineral...
Avian flu can be transmitted from birds to humans; transmission among humans, however, is limited. The reason may be an eggshell-like mineral layer that the virus acquires due to the high calcium concentration in the intestines of birds. These mineralized...
1 day
In search of Edwards' pheasant: Amost extinct?
SCIENCE DAILY
Scientists say we need to improve our information about little-known species to reduce the risk of one going extinct just because no-one is interested in looking for it.
Scientists say we need to improve our information about little-known species to reduce the risk of one going extinct just because no-one is interested in looking for it.
1 day
Mechanisms explaining positional diversity of the hindlimb in tetrapod evolution
PHYS.ORG
In the evolution of tetrapods, the position of the hindlimb has diversified along with the vertebral formula, which is the number of small bones forming the vertebra. Tetrapods,...
In the evolution of tetrapods, the position of the hindlimb has diversified along with the vertebral formula, which is the number of small bones forming the vertebra. Tetrapods, as the name implies, are species that have four feet. However, this...
2 days
First successful wild whale shark health assessments performed
SCIENCE DAILY
For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks -- the...
For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks -- the world's largest fish, classified as 'endangered' since 2016....
2 days
Calves should receive more pain relief during husbandry procedures, researchers find
PHYS.ORG
Calves may not be receiving the right level of pain relief when undergoing routine animal husbandry procedures including castration and disbudding, new research has found.
Calves may not be receiving the right level of pain relief when undergoing routine animal husbandry procedures including castration and disbudding, new research has found.
2 days
Migrating birds use a magnetic map to travel long distances
PHYS.ORG
Birds have an impressive ability to navigate. They can fly long distances, to places that they may never have visited before, sometimes returning home after months away.
Birds have an impressive ability to navigate. They can fly long distances, to places that they may never have visited before, sometimes returning home after months away.
2 days
Detecting defects hidden in hides
PHYS.ORG
An Agricultural Research Service (ARS) scientist has found a way to spot defects in the animal hides that become footwear, sporting goods, fashion accessories, and other leather goods.
An Agricultural Research Service (ARS) scientist has found a way to spot defects in the animal hides that become footwear, sporting goods, fashion accessories, and other leather goods.
2 days
Genome analysis with near-complete privacy possible, say researchers
SCIENCE DAILY
It is now possible to scour complete human genomes for the presence of disease-associated genes without revealing any genetic information not directly associated with the inquiry, say researchers.
It is now possible to scour complete human genomes for the presence of disease-associated genes without revealing any genetic information not directly associated with the inquiry, say researchers.
2 days
Cat-Sized Marsupial Relative Lived in Turkey 43 Million Years Ago
SCI-NEWS.COM
Fossils discovered in Turkey represent a new species that is a previously unknown relative of modern-day...
Fossils discovered in Turkey represent a new species that is a previously unknown relative of modern-day marsupials, according to a new paper published in the journal PLoS ONE. Named Anatoliadelphys maasae, the new species is an unusual, cat-sized carnivorous metatherian...
2 days
Super-photostable fluorescent labeling agent for super-resolution microscopy
PHYS.ORG
Chemists at ITbM, Nagoya University have developed a super-photostable fluorescent dye called PhoxBright 430 (PB430) to visualize cellular ultra-structure by super-resolution microscopy. The exceptional photostability of this new dye enables continuous STED imaging. With...
Chemists at ITbM, Nagoya University have developed a super-photostable fluorescent dye called PhoxBright 430 (PB430) to visualize cellular ultra-structure by super-resolution microscopy. The exceptional photostability of this new dye enables continuous STED imaging. With its ability to tag proteins with...
2 days
The Western Ghats of India revealed two new primitive species of earthworm
PHYS.ORG
The Western Ghats mountains lie at the southwestern continental margin of Peninsular India and extend all the way from Gujarat to Kerala. The massif...
The Western Ghats mountains lie at the southwestern continental margin of Peninsular India and extend all the way from Gujarat to Kerala. The massif has earned its place amongst the eight 'hottest' biodiversity hotspots in the world.
2 days
Climate change and habitat conversion combine to homogenize nature
PHYS.ORG
Climate change and habitat conversion to agriculture are working together to homogenize nature, indicates a study in the journal Global Change Biology led by the University of California, Davis.
Climate change and habitat conversion to agriculture are working together to homogenize nature, indicates a study in the journal Global Change Biology led by the University of California, Davis.
2 days
Citrus: From luxury item to cash crop
PHYS.ORG
New research from Tel Aviv University reveals that citrons and lemons were clear status symbols for the ancient Roman ruling elite and plots the route and evolution of the citrus trade in the ancient...
New research from Tel Aviv University reveals that citrons and lemons were clear status symbols for the ancient Roman ruling elite and plots the route and evolution of the citrus trade in the ancient Mediterranean.
2 days
Worm atlas profiles gene readouts in every cell type in the animal
SCIENCE DAILY
A worm atlas has been built that profiles gene readouts for every kind of cell in the animal. This is the first time this...
A worm atlas has been built that profiles gene readouts for every kind of cell in the animal. This is the first time this type of comprehensive profiling for a multi-cellular organism has been created. The study was conducted at...
2 days
Disrupted gut microbiome makes children more susceptible to amoebic dysentery
SCIENCE DAILY
Children with lower diversity of microbial species in their intestines are more susceptible to severe infection with the Entamoeba histolytica parasite, according to a new study.
Children with lower diversity of microbial species in their intestines are more susceptible to severe infection with the Entamoeba histolytica parasite, according to a new study.
2 days
Slowing dangerous bacteria may be more effective than killing them
SCIENCE DAILY
A new study suggests it may be possible to slow dangerous infections by manipulating the messages microbes send to one another, allowing the body to defeat an infection...
A new study suggests it may be possible to slow dangerous infections by manipulating the messages microbes send to one another, allowing the body to defeat an infection without causing the bacteria to develop resistance to the treatment.
2 days
Super-photostable fluorescent labeling agent for super-resolution microscopy
SCIENCE DAILY
Chemists have developed a super-photostable fluorescent dye, PhoxBright 430 (PB430), to visualize cellular ultrastructure by super resolution microscopy. The exceptional photostability of this new dye enables continuous STED imaging and together with its ability...
Chemists have developed a super-photostable fluorescent dye, PhoxBright 430 (PB430), to visualize cellular ultrastructure by super resolution microscopy. The exceptional photostability of this new dye enables continuous STED imaging and together with its ability to fluorescently label proteins, PB430 demonstrates...
2 days
Antibiotics found to weaken body's ability to fight off disease
SCIENCE DAILY
Adding another reason for doctors to avoid the overuse of antibiotics, new research shows that a reduction in the variety of microbes in the gut interferes with the...
Adding another reason for doctors to avoid the overuse of antibiotics, new research shows that a reduction in the variety of microbes in the gut interferes with the immune system's ability to fight off disease.
2 days
New gene catalog of ocean microbiome reveals surprises
SCIENCE DAILY
Oceanographers report completing the largest single-site microbiome gene catalog constructed to date. With this new information, the team discovered nutrient limitation is a central driver in the evolution of ocean microbe genomes.
Oceanographers report completing the largest single-site microbiome gene catalog constructed to date. With this new information, the team discovered nutrient limitation is a central driver in the evolution of ocean microbe genomes.
2 days
Bacteria stab amoebae with micro-daggers
SCIENCE DAILY
Researchers have discovered a type of bacteria that uses tiny daggers to prevent itself from being eaten by amoebae. The scientists also resolved the three-dimensional structure of the mechanism that allows the micro-daggers to be shot quickly.
Researchers have discovered a type of bacteria that uses tiny daggers to prevent itself from being eaten by amoebae. The scientists also resolved the three-dimensional structure of the mechanism that allows the micro-daggers to be shot quickly.
2 days
Antibiotic use makes immune cells less effective in fighting infections
NEWS MEDICAL
Adding another reason for doctors to avoid the overuse of antibiotics, new research shows that a reduction in the variety of microbes in the gut interferes with the...
Adding another reason for doctors to avoid the overuse of antibiotics, new research shows that a reduction in the variety of microbes in the gut interferes with the immune system's ability to fight off disease.
2 days
Abnormal eating schedules affect skin’s protection from harmful UV rays of the sun
NEWS MEDICAL
Sunbathers may want to avoid midnight snacks before catching some rays. A study in mice from the O'Donnell Brain Institute and UC Irvine shows...
Sunbathers may want to avoid midnight snacks before catching some rays. A study in mice from the O'Donnell Brain Institute and UC Irvine shows that eating at abnormal times disrupts the biological clock of the skin, including the daytime potency...
2 days
New gene catalog of ocean microbiome reveals surprises
PHYS.ORG
Microbes dominate the planet, especially the ocean, and help support the entire marine food web. In a recent report published in Nature Microbiology, University of Hawai'i at Mānoa (UHM) oceanography professor Ed...
Microbes dominate the planet, especially the ocean, and help support the entire marine food web. In a recent report published in Nature Microbiology, University of Hawai'i at Mānoa (UHM) oceanography professor Ed DeLong and his team report the largest single-site...
2 days
'Switch' turns on immune cells' tumor-killing ability
SCIENCE DAILY
Molecular biologists report for the first time how a microRNA molecule known as Lethal-7 (let-7) serves as a molecular control hub to direct the function of cytotoxic T lymphocytes by putting the brakes on...
Molecular biologists report for the first time how a microRNA molecule known as Lethal-7 (let-7) serves as a molecular control hub to direct the function of cytotoxic T lymphocytes by putting the brakes on their cell-killing activities.
2 days
New technique overcomes genetic cause of infertility
SCIENCE DAILY
Scientists have created healthy offspring from genetically infertile male mice, offering a potential new approach to tackling a common genetic cause of human infertility.
Scientists have created healthy offspring from genetically infertile male mice, offering a potential new approach to tackling a common genetic cause of human infertility.
2 days
Evolutionary history of imperiled salmon stocks
SCIENCE DAILY
New technologies for analyzing DNA may transform how imperiled species are considered and managed for conservation protection, according to a study. These technologies can be applied to a wide range of species around the world --...
New technologies for analyzing DNA may transform how imperiled species are considered and managed for conservation protection, according to a study. These technologies can be applied to a wide range of species around the world -- from mushrooms to walruses...
2 days
Gene that makes large, plump tomatoes identified
SCIENCE DAILY
Farmers can grow big, juicy tomatoes thanks to a mutation in the cell size regulator gene that occurred during the tomato domestication process.
Farmers can grow big, juicy tomatoes thanks to a mutation in the cell size regulator gene that occurred during the tomato domestication process.
2 days
Reed warblers have a sense for magnetic declination
SCIENCE DAILY
Researchers recently showed that migratory reed warblers depend on an internal geomagnetic map to guide them on their long-distance journeys. But it wasn't clear how the birds were solving the difficult 'longitude...
Researchers recently showed that migratory reed warblers depend on an internal geomagnetic map to guide them on their long-distance journeys. But it wasn't clear how the birds were solving the difficult 'longitude problem,' determining where they were along the east-west...
2 days
Disrupted gut microbiome makes children more susceptible to amoebic dysentery
MNT
Children with lower diversity of microbial species in their intestines are more susceptible to severe infection with the Entamoeba histolytica parasite, according to a new study published in...
Children with lower diversity of microbial species in their intestines are more susceptible to severe infection with the Entamoeba histolytica parasite, according to a new study published in PLOS...
2 days
New Pathology Atlas maps genes in cancer to accelerate progress in personalized medicine
SCIENCE DAILY
A new Pathology Atlas is launched today with an analysis of all human genes in all major cancers showing the consequence of...
A new Pathology Atlas is launched today with an analysis of all human genes in all major cancers showing the consequence of their corresponding protein levels for overall patient survival. The difference in expression patterns of individual cancers observed in...
2 days
Fertile offspring from sterile sex chromosome trisomic mice
Science Magazine
Having the correct number of chromosomes is vital for normal development and health. Sex chromosome trisomy (SCT) affects 0.1% of the human population and is associated with infertility. We show that during...
Having the correct number of chromosomes is vital for normal development and health. Sex chromosome trisomy (SCT) affects 0.1% of the human population and is associated with infertility. We show that during reprogramming to induced pluripotent stem cells (iPSC), fibroblasts...
2 days
Distinct phases of Polycomb silencing to hold epigenetic memory of cold in Arabidopsis
Science Magazine
Gene silencing by Polycomb complexes is central to eukaryotic development. Cold-induced epigenetic repression of FLOWERING LOCUS C (FLC) in the plant Arabidopsis...
Gene silencing by Polycomb complexes is central to eukaryotic development. Cold-induced epigenetic repression of FLOWERING LOCUS C (FLC) in the plant Arabidopsis provides an opportunity to study initiation and maintenance of Polycomb silencing. Here, we show that a subset of...
2 days
DNA replication-coupled histone modification maintains Polycomb gene silencing in plants
Science Magazine
Propagation of patterns of gene expression through the cell cycle requires prompt restoration of epigenetic marks after the twofold dilution caused by DNA replication. Here, we show that...
Propagation of patterns of gene expression through the cell cycle requires prompt restoration of epigenetic marks after the twofold dilution caused by DNA replication. Here, we show that the transcriptional repressive mark histone H3 lysine 27 trimethylation (H3K27me3) is restored...
2 days
Preventing mussel adhesion using lubricant-infused materials
Science Magazine
Mussels are opportunistic macrofouling organisms that can attach to most immersed solid surfaces, leading to serious economic and ecological consequences for the maritime and aquaculture industries. We demonstrate that lubricant-infused coatings exhibit very low preferential mussel...
Mussels are opportunistic macrofouling organisms that can attach to most immersed solid surfaces, leading to serious economic and ecological consequences for the maritime and aquaculture industries. We demonstrate that lubricant-infused coatings exhibit very low preferential mussel attachment and ultralow adhesive...
2 days
Collaborative environmental governance: Achieving collective action in social-ecological systems
Science Magazine
Managing ecosystems is challenging because of the high number of stakeholders, the permeability of man-made political and jurisdictional demarcations in relation to the temporal and spatial extent of biophysical processes,...
Managing ecosystems is challenging because of the high number of stakeholders, the permeability of man-made political and jurisdictional demarcations in relation to the temporal and spatial extent of biophysical processes, and a limited understanding of complex ecosystem and societal dynamics....
2 days
Comprehensive single-cell transcriptional profiling of a multicellular organism
Science Magazine
To resolve cellular heterogeneity, we developed a combinatorial indexing strategy to profile the transcriptomes of single cells or nuclei, termed sci-RNA-seq (single-cell combinatorial indexing RNA sequencing). We applied sci-RNA-seq to profile nearly...
To resolve cellular heterogeneity, we developed a combinatorial indexing strategy to profile the transcriptomes of single cells or nuclei, termed sci-RNA-seq (single-cell combinatorial indexing RNA sequencing). We applied sci-RNA-seq to profile nearly 50,000 cells from the nematode Caenorhabditis elegans at...
2 days
A pathology atlas of the human cancer transcriptome
Science Magazine
Cancer is one of the leading causes of death, and there is great interest in understanding the underlying molecular mechanisms involved in the pathogenesis and progression of individual tumors. We used systems-level...
Cancer is one of the leading causes of death, and there is great interest in understanding the underlying molecular mechanisms involved in the pathogenesis and progression of individual tumors. We used systems-level approaches to analyze the genome-wide transcriptome of the...
2 days
Deriving genomic diagnoses without revealing patient genomes
Science Magazine
Patient genomes are interpretable only in the context of other genomes; however, genome sharing enables discrimination. Thousands of monogenic diseases have yielded definitive genomic diagnoses and potential gene therapy targets. Here we show how...
Patient genomes are interpretable only in the context of other genomes; however, genome sharing enables discrimination. Thousands of monogenic diseases have yielded definitive genomic diagnoses and potential gene therapy targets. Here we show how to provide such diagnoses while preserving...
2 days
Zones, spots, and planetary-scale waves beating in brown dwarf atmospheres
Science Magazine
Brown dwarfs are massive analogs of extrasolar giant planets and may host types of atmospheric circulation not seen in the solar system. We analyzed a long-term Spitzer Space...
Brown dwarfs are massive analogs of extrasolar giant planets and may host types of atmospheric circulation not seen in the solar system. We analyzed a long-term Spitzer Space Telescope infrared monitoring campaign of brown dwarfs to constrain cloud cover variations...
2 days
In situ architecture, function, and evolution of a contractile injection system
Science Magazine
Contractile injection systems mediate bacterial cell-cell interactions by a bacteriophage tail–like structure. In contrast to extracellular systems, the type 6 secretion system (T6SS) is defined by...
Contractile injection systems mediate bacterial cell-cell interactions by a bacteriophage tail–like structure. In contrast to extracellular systems, the type 6 secretion system (T6SS) is defined by intracellular localization and attachment to the cytoplasmic membrane. Here we used cryo-focused ion beam...
2 days
A central neural circuit for itch sensation
Science Magazine
Although itch sensation is an important protective mechanism for animals, chronic itch remains a challenging clinical problem. Itch processing has been studied extensively at the spinal level. However, how itch information is transmitted to...
Although itch sensation is an important protective mechanism for animals, chronic itch remains a challenging clinical problem. Itch processing has been studied extensively at the spinal level. However, how itch information is transmitted to the brain and what central circuits...
2 days
Slippery liquid surfaces confuse mussels
PHYS.ORG
It all began with a bet at a conference in Italy in 2013. Nicolas Vogel, Ph.D., then a postdoctoral fellow in Joanna Aizenberg's lab at the Wyss Institute for Biologically Inspired Engineering at Harvard University and Harvard's John...
It all began with a bet at a conference in Italy in 2013. Nicolas Vogel, Ph.D., then a postdoctoral fellow in Joanna Aizenberg's lab at the Wyss Institute for Biologically Inspired Engineering at Harvard University and Harvard's John A. Paulson...
2 days
Researchers describe gene that makes large, plump tomatoes
PHYS.ORG
Farmers can grow big, juicy tomatoes thanks to a mutation in the Cell Size Regulator gene that occurred during the tomato domestication process. Esther van der Knaap of the University of Georgia,...
Farmers can grow big, juicy tomatoes thanks to a mutation in the Cell Size Regulator gene that occurred during the tomato domestication process. Esther van der Knaap of the University of Georgia, Athens and colleagues describe this gene variant in...
2 days
Early Indian Ocean trade routes bring chicken, black rat to eastern Africa
PHYS.ORG
The earliest introduction of domestic chickens and black rats from Asia to the east coast of Africa came via maritime routes between the 7th...
The earliest introduction of domestic chickens and black rats from Asia to the east coast of Africa came via maritime routes between the 7th and 8th centuries AD. In a paper published August 17, 2017 in the journal PLOS ONE,...
2 days
Bacteria stab amoebae with micro-daggers
PHYS.ORG
Bacteria have to watch out for amoeba. Hungry amoebae hunt them: they catch them with their pseudopodia and then absorb and digest them.
Bacteria have to watch out for amoeba. Hungry amoebae hunt them: they catch them with their pseudopodia and then absorb and digest them.
2 days
Worm atlas profiles gene readouts in every cell type in the animal
PHYS.ORG
The roundworm stars in the first-ever compilation of gene readouts in every kind of cell in an animal. The readouts, which were taken at...
The roundworm stars in the first-ever compilation of gene readouts in every kind of cell in an animal. The readouts, which were taken at a particular stage in the worm's life, reveal, for example, which genes are turned on or...
2 days
Male fruit flies can smell a good mate based on her metabolism
PHYS.ORG
A female fruit fly must balance her energy usage between making eggs now and storing nutrients for later. This balance affects the pheromones that...
A female fruit fly must balance her energy usage between making eggs now and storing nutrients for later. This balance affects the pheromones that she produces and impacts whether male fruit flies find her attractive, report Tatyana Fedina of the...
2 days
Peroxisomes identified as 'fighters' in the battle against bacterial infections
SCIENCE DAILY
Peroxisomes are required for cells in the innate immune response to bacteria and fungi. Now scientists have found that peroxisomes are necessary for proper functioning of the innate...
Peroxisomes are required for cells in the innate immune response to bacteria and fungi. Now scientists have found that peroxisomes are necessary for proper functioning of the innate immune system, the body's first line of defense against microorganisms.
2 days
Scientists develop novel immunotherapy technology for prostate cancer
SCIENCE DAILY
A novel immunotherapeutic strategy for the treatment of cancer based on the use of synthetic DNA to directly encode protective antibodies against a cancer-specific protein has been described in a new article.
A novel immunotherapeutic strategy for the treatment of cancer based on the use of synthetic DNA to directly encode protective antibodies against a cancer-specific protein has been described in a new article.
2 days
Research provides clues to how infectious bacteria may increase risk of cancer
NEWS MEDICAL
Gastric carcinoma is one of the most common causes of cancer-related deaths, primarily because most patients present at an advanced stage of the disease.
Gastric carcinoma is one of the most common causes of cancer-related deaths, primarily because most patients present at an advanced stage of the disease.
2 days
Medical News Today: Vitamin C may stop leukemia from progressing
MNT
New research finds that high-dose vitamin C can genetically 'reprogram' leukemic cells to mature and die normally, instead of replicating to cause cancer.
New research finds that high-dose vitamin C can genetically 'reprogram' leukemic cells to mature and die normally, instead of replicating to cause cancer.
2 days
Researchers identify role of blood-filtering organs in fighting against viral infections
NEWS MEDICAL
New information about how and where the innate immune system fights off viral infections that enter through the skin could lead to better treatments for viruses...
New information about how and where the innate immune system fights off viral infections that enter through the skin could lead to better treatments for viruses like Zika, dengue and measles, according to Penn State College of Medicine researchers.
2 days
Astronomers Map Atmosphere of Dying Supergiant Antares
SPACE.COM
One day, our sun will grow so large that it will swallow Earth. To understand that future stage, scientists must look beyond the solar system to study the full evolutionary cycles of stars.
One day, our sun will grow so large that it will swallow Earth. To understand that future stage, scientists must look beyond the solar system to study the full evolutionary cycles of stars.
2 days
Smithsonian manatee count informs policy recommendations
PHYS.ORG
All three of the world's manatee species are threatened with extinction: the Amazonian Manatee, the African Manatee and the West Indian Manatee. The Antillean Manatee, an endangered subspecies, feeds and calves in rivers and coastal wetlands...
All three of the world's manatee species are threatened with extinction: the Amazonian Manatee, the African Manatee and the West Indian Manatee. The Antillean Manatee, an endangered subspecies, feeds and calves in rivers and coastal wetlands from the Gulf of...
2 days
Reed warblers have a sense for magnetic declination
PHYS.ORG
Researchers recently showed that migratory reed warblers depend on an internal geomagnetic map to guide them on their long-distance journeys. But it wasn't clear how the birds were solving the relatively difficult...
Researchers recently showed that migratory reed warblers depend on an internal geomagnetic map to guide them on their long-distance journeys. But it wasn't clear how the birds were solving the relatively difficult "longitude problem," determining where they were along the...
2 days
Slowing dangerous bacteria may be more effective than killing them, researchers report
PHYS.ORG
Researchers at the University of Illinois have discovered a mechanism that allows bacteria of the same species to communicate when their survival is threatened....
Researchers at the University of Illinois have discovered a mechanism that allows bacteria of the same species to communicate when their survival is threatened. The study suggests it may be possible to slow dangerous infections by manipulating the messages these...
2 days
How the genome sets its functional micro-architecture
PHYS.ORG
The genes that are involved in the development of the fetus are activated in different tissues and at different times. Their expression is carefully regulated by so-called "enhancer sequences", which are often located far...
The genes that are involved in the development of the fetus are activated in different tissues and at different times. Their expression is carefully regulated by so-called "enhancer sequences", which are often located far from their target genes, and requires...
2 days
Turkey bones may help trace fate of ancient cliff dwellers
PHYS.ORG
Researchers say they have found a new clue into the mysterious exodus of ancient cliff-dwelling people from the Mesa Verde area of Colorado more than 700 years ago:...
Researchers say they have found a new clue into the mysterious exodus of ancient cliff-dwelling people from the Mesa Verde area of Colorado more than 700 years ago: DNA from the bones of domesticated turkeys.
2 days
Hemorrhagic fevers: Countering inflammation to prevent circulatory failure
PHYS.ORG
Hemorrhagic fevers are severe viral diseases that are often fatal. Researchers from the University of Basel have now identified messenger substances of the immune system, which in infected mice lead to the...
Hemorrhagic fevers are severe viral diseases that are often fatal. Researchers from the University of Basel have now identified messenger substances of the immune system, which in infected mice lead to the development of shock. These results, published in the...
2 days
First successful wild whale shark health assessments performed
PHYS.ORG
For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks - the...
For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks - the world's largest fish, classified as "endangered" since 2016....
2 days
Whales turn tail at ocean mining noise
SCIENCE DAILY
A new international study has measured the effect of loud sounds on migrating humpback whales as concern grows as oceans become noisier. Scientists have said one of the main sources of ocean noise was...
A new international study has measured the effect of loud sounds on migrating humpback whales as concern grows as oceans become noisier. Scientists have said one of the main sources of ocean noise was oil and gas exploration, due to...
2 days
Pig-to-person spread of flu at fairs a continued concern
SCIENCE DAILY
The spread of influenza among pigs is common at fairs and other gatherings, and protective measures including cutting the length of time pigs and people congregate make good sense for...
The spread of influenza among pigs is common at fairs and other gatherings, and protective measures including cutting the length of time pigs and people congregate make good sense for both the animals and humans, say the authors of a...
2 days
Can previous exposure to West Nile alter the course of Zika?
SCIENCE DAILY
West Nile virus is no stranger to the U.S.-Mexico border; thousands of people in the region have contracted the mosquito-borne virus in the past. But could...
West Nile virus is no stranger to the U.S.-Mexico border; thousands of people in the region have contracted the mosquito-borne virus in the past. But could this previous exposure affect how intensely Zika sickens someone now?
2 days
Probiotics can prevent sepsis in infants, study shows
SCIENCE DAILY
A special mixture of good bacteria in the body reduced the incidence of sepsis in infants in India by 40 percent at a cost of only $1 per infant, new research has...
A special mixture of good bacteria in the body reduced the incidence of sepsis in infants in India by 40 percent at a cost of only $1 per infant, new research has found.
2 days
‘Euro Devil’: Fossil of carnivorous marsupial relative discovered in E Europe
SCIENCE DAILY
Scientists have discovered fossil remains of a new carnivorous mammal in Turkey, one of the biggest marsupial relatives ever discovered in the northern hemisphere.
Scientists have discovered fossil remains of a new carnivorous mammal in Turkey, one of the biggest marsupial relatives ever discovered in the northern hemisphere.
2 days
How the genome sets its functional micro-architecture
SCIENCE DAILY
Scientists now show how DNA is organized into specific regions, and that this depends on a combination of genomic distance and the presence of the CTCF protein.
Scientists now show how DNA is organized into specific regions, and that this depends on a combination of genomic distance and the presence of the CTCF protein.
2 days
Are stem cells the link between bacteria and cancer?
SCIENCE DAILY
A new mechanism of stomach gland regeneration reveals impact of Helicobacter pylori infection.
A new mechanism of stomach gland regeneration reveals impact of Helicobacter pylori infection.
2 days
Florida flood risk study identifies priorities for property buyouts
SCIENCE DAILY
A study of flood damage in Florida proposes prioritizing property buyouts based on flood risk, ecological value, and socioeconomic conditions. Forecasters say an above-normal hurricane season is likely in the...
A study of flood damage in Florida proposes prioritizing property buyouts based on flood risk, ecological value, and socioeconomic conditions. Forecasters say an above-normal hurricane season is likely in the Atlantic Ocean this year, while a rising sea level is...
3 days
Florida flood risk study identifies priorities for property buyouts
PHYS.ORG
A study of flood damage in Florida by scientists at UC Santa Cruz and the Nature Conservancy proposes prioritizing property buyouts based on flood risk, ecological value, and socioeconomic conditions....
A study of flood damage in Florida by scientists at UC Santa Cruz and the Nature Conservancy proposes prioritizing property buyouts based on flood risk, ecological value, and socioeconomic conditions. Forecasters say an above-normal hurricane season is likely in the...
3 days
Researchers explore if deep-sea sponges could be new source of potential antimicrobials
NEWS MEDICAL
Marine sponges and the deep-sea ecosystem are comparatively under-studied and under-exploited compared with life in shallower waters - but a team of scientists from the University...
Marine sponges and the deep-sea ecosystem are comparatively under-studied and under-exploited compared with life in shallower waters - but a team of scientists from the University of Plymouth are identifying and developing potential new antimicrobials produced by the microbiome of...
3 days
How to live with bears
PHYS.ORG
Bears have been on Europeans' minds lately, as violent encounters with these powerful mammals make international headlines.
Bears have been on Europeans' minds lately, as violent encounters with these powerful mammals make international headlines.
3 days
Sharp X-ray pulses from the atomic nucleus
PHYS.ORG
X-rays make the invisible visible: they permit the way materials are structured to be determined all the way down to the level of individual atoms. In the 1950s it was x-rays which revealed the...
X-rays make the invisible visible: they permit the way materials are structured to be determined all the way down to the level of individual atoms. In the 1950s it was x-rays which revealed the double-helix structure of DNA. With new...
3 days
Shortcuts...
Facebook
Twitter
Email
About PS
Log In
Register
Video
Trending
Fresh
How we inherit masculine and feminine behaviours: a new idea about environment and genes
SCIENCE
