The origin of reproductive organs
Early in human development, during the first trimester of gestation, a fetus may have XX or XY chromosomes that indicate its sex. Yet at this stage a mass of cells known as the bipotential gonad that ultimately develops into either ovaries or testes.....»»
Blue Origin is getting serious about developing a human spacecraft
Company seeks: "Experience with human spaceflight or high-performance aircraft systems?" Enlarge / Dave Limp, Blue Origin's new CEO, and founder Jeff Bezos observe the New Glenn rocket on its launch pad Wednesday at Cape Canavera.....»»
Unveiling rare diversity: The origin of heritable mutations in trees
What is the origin of genetic diversity in plants? Can new mutations acquired during growth be passed on to seeds? INRAE scientists, in collaboration with CIRAD and the CNRS, have used the French Guiana forest as the setting for their research, leadi.....»»
Research team reveals cellular and molecular basis of spur development in Impatiens uliginosa
As an important reproductive organ of angiosperms, flowers have a clear purpose and adaptive significance in their various characteristics. As a typical floral evolutionary feature, the floral spur is a tubular structure extending from the petal, whi.....»»
Scientists reveal how first cells could have formed on Earth
Roughly 4 billion years ago, Earth was developing conditions suitable for life. Origin-of-life scientists often wonder if the type of chemistry found on the early Earth was similar to what life requires today. They know that spherical collections of.....»»
Female olfactory cues hasten mortality and reproductive aging, mouse study finds
Sensory cues from the opposite sex can influence how animals age, a University of Otago-led study has found......»»
Research finds geochemical landscape drives musk oxen reproductive success
Researchers have studied Greenland musk oxen that have been followed for 25 years to see how their feeding habits affect their reproductive success. And it turns out that when they go to areas with more copper and selenium in the ground, they have mo.....»»
New measurement captures clearer picture of our galaxy and beyond
With unique capabilities to track microwave energy fluctuations, a small observatory in the Andes mountains of northern Chile produced maps of 75% of the sky as part of an effort to measure the universe's origin and evolution more accurately......»»
Using CRISPR gene editing to prevent pigs from getting blue-ear pig disease
A team of bio-scientists affiliated with a host of institutions across the U.S. has developed a gene editing technique to produce newborn pigs immune to porcine reproductive and respiratory syndrome, also known as blue-ear pig disease. The paper is p.....»»
Blue Origin’s heavy-lift New Glenn rocket raised on launchpad for first time
Blue Origin’s 320-foot New Glenn rocket has been raised on the launchpad for the first time as part of preparations for its maiden flight later this year......»»
Jeff Bezos’ New Glenn rocket finally makes an appearance on the launch pad
Blue Origin plans a tanking test at Cape Canaveral, then a hotfire on the launch pad. Enlarge / Dave Limp, Blue Origin's new CEO, and founder Jeff Bezos observe the New Glenn rocket on its launch pad Wednesday at Cape Canaveral S.....»»
Live imaging reveals key cell dynamics in 3D organ formation in Drosophila
Animal development requires successive changes in cell and tissue structures. To form complex 3D organs, cell shapes must adapt to support tissue morphogenesis. However, our understanding of how cellular structure changes are coupled with dynamic tis.....»»
Examining the relationship of reproductive health and economics
Access to reproductive health care—and abortion in particular—is an issue that resonates with voters' deeply held personal beliefs and reflects their underlying moral, philosophical, and religious views. But is it also an economic issue?.....»»
Compound vital for all life likely played a role in life"s origin, suggests synthesis study
A chemical compound essential to all living things has been synthesized in a lab in conditions that could have occurred on early Earth, suggesting it played a role at the outset of life, finds a new study led by University College London researchers......»»
LHAASO discovers giant ultra-high-energy gamma-ray bubble, identifying the first super PeVatron
The Large High Altitude Air Shower Observatory (LHAASO) has discovered a giant ultra-high-energy gamma-ray bubble structure in the Cygnus star-forming region, which is the first time that the origin of cosmic rays with energy higher than 10 Peta-Elec.....»»
Blue Origin has emerged as the likely buyer for United Launch Alliance
Pairing of two launch companies could provide more robust competition to SpaceX. Enlarge / The first Vulcan rocket fires off its launch pad in Florida in January 2024. (credit: United Launch Alliance) The rocket company.....»»
5 Reasons Why You Should Consider Consulting A DUI Lawyer
Did you just get arrested for driving while intoxicated? To be honest, you might be in big trouble. A DUI charge carries severe penalties that vary depending on your place of origin and the seriousness of your offense. After all, the purpose of the l.....»»
Scientists create method to bond hydrogels and other polymeric materials using chitosan
Hydrogels are versatile biomaterials conquering an increasing number of biomedical areas. Consisting of water-swollen molecular networks that can be tailored to mimic the mechanical and chemical features of various organs and tissues, they can interf.....»»
Men become less fertile with age, but the same isn"t true for all animals: Study
We take it for granted that humans find it more difficult to conceive as they grow older. But our recent study, which analyzed data from 157 animal species, found that male reproductive aging seems to be a lot less common in other male animals......»»
Q&A: Pork, pathogens and progress—a close look at PRRSV research
The pork industry provides people across different cultures a considerable source of protein, essential nutrients and a versatile ingredient for diverse culinary traditions. So, when the problem of porcine reproductive and respiratory syndrome virus.....»»
SPNS2 found to be directly exporting S1P for signaling, can be inhibited
When an enemy invades, defenders are ferried to the site to neutralize the marauders. In the human body, a protein carrier called SPNS2 transports S1P molecules from endothelial cells to rally immune cell response in infected organs and tissues......»»