Science And Technology

Stem Cells May Help Restoring Sense of Smell – Tufts University Research Written on 03/29/2019 Vinod kushwaha                                Stem Cells May Help Restoring Sense of Smell – Tufts University Research The sense of smell – it plays a vital role for all individuals. But all of that can be suppressed with aging, trauma, chronic sinus diseases, and neurodegenerative disorders. The inability or decreased ability to smell isn’t always treatable which is commonly called as called anosmia and hyposmia respectively in medical terms. Tufts  University School of Medicine Researchers has shown they can restore the sense of smell by developing and triggering olfactory stem cells in culture. They stated that this technique could be used to regenerate nose tissue, including sensory neurons. Activated HBCs differentiate into neurons (red) and non-neuronal supporting cells (gol...

Have you ever imagined what the world must look like to hummingbirds as theyzoom about at speeds of up to 60 miles per hour? According to new evidence on the way the hummingbird brain processes visual signals reported in  Current Biology on January 5, you can't. That's because a key area of the hummingbird's brain processes motion in a unique and unexpected way. "In all four-limbed vertebrates studied to date, most of the neurons in this [motion-detecting] brain area are tuned to detect motion coming from behind, such as would occur for an impending collision or when being attacked from behind by a predator," says Douglas Altshuler of the University of British Columbia. "We found that this brain area responds very differently in hummingbirds. Instead of most neurons being tuned to back-to-front motion, almost every neuron we found was tuned to a different direction. We also found that these neurons were most responsive to very fast motion." The ...

Weighing as much as a raindrop, the chest sensor can wirelessly monitor heart rate, breathing rate, and temperature . Credit: Northwestern University An interdisciplinary Northwestern University team has developed a pair of soft, flexible wireless sensors that replace the tangle of wire-based sensors that currently monitor babies in hospitals' neonatal intensive care units (NICU) and pose a barrier to parent-baby cuddling and physical bonding. The team recently completed a series of first human studies on premature babies at Prentice Women's Hospital and Ann & Robert H. Lurie Children's Hospital of Chicago. The researchers concluded that the wireless sensors provided data as precise and accurate as that from traditional monitoring systems. The wireless patches also are gentler on a newborn's fragile skin and allow for more skin-to-skin contact with the parent. Existing sensors must be attached with adhesives that can scar and blister premature newbor...

Why Some Cancer Cells Die With Treatment & Others Don,t Written on 03/29/2019 Vinod kumshwaha Why Some Cancer Cells Die With Treatment & Others Don’t A question – Several cancer drugs work by promoting “ apoptosis,” or programmed cell death, some cancer cells readily undergo apoptosis in response to these therapies, but others don’t. Why?  Researchers at the Mount Sinai School of Medicine teamed up with IBM Research have come up with an answer to the above question – they have found a clue in  the mitochondria , the components of cells which produce energy. In short, cells with fewer mitochondria were more likely to react to drugs that promote apoptosis. With a mathematical model developed by IBM, the team started their examination by exposing several kinds of cells, including breast and pancreatic cancer cells into six different doses of an apoptosis-promoting drug, then they also measured how differences in cell sur...

CRISPR Powered e-Transistors For Quick Genetic Mutation Detection Written on 03/27/2019 Vinod kumar kushwaha CRISPR Powered e-Transistors For Quick Genetic Mutation Detection CRISPR is a family of DNA sequences found within the genomes of prokaryotic organisms such as bacteria and archaea. These sequences are derived from DNA fragments from viruses that have previously infected the prokaryote and are used to detect and destroy DNA from similar viruses during subsequent infections. CRISPR-Chip – A CRISPR powered e-Transistor made of graphene is a new device developed by a group of engineers at the University of California, Berkeley & the Keck Graduate Institute ( KGI ) of The Claremont Colleges, that can detect a genetic mutation within minutes. The device, called CRISPR-Chip, could be used to diagnose hereditary diseases or to evaluate the accuracy of gene-editing techniques. “We’ve developed the first transistor that uses CRISPR to look for your gen...

Five New Species Discovered In india India’s rich biodiversity means that scientists are constantly discovering new species and subspecies of animals every year - from tiny insects to larger mammals. Impressive examples from the past include the tree-climbing  Kani Maranjandu  crab from Kerala (reportedly the only crab species to live entirely in trees), and the underground-dwelling  Bhupathy's purple frog  from the Western Ghats, whose pig-like snout makes it different from any frog you’ve seen.   Let’s look at some more interesting species found recently in India for the first time. Bhupathy’ Shieldtail Brown in colour and approximately 40 centimetres long, Bhupathy’s Shieldtail is the latest addition to the many snake species of the Western Ghats. Bamboo Bat Bamboo bats are not new to the Andaman Islands. However, a new subspecies —  Tylonycteris malayana eremtaga  — was recently discovered. Two male...

Why increases day by day your fat e there are many reasons why people gain belly  fat , including poor diet, lack of exercise, and stress. Improving nutrition,  increasing  activity, reducing stress, and making other lifestyle changes can all help people lose unwanted belly  fat . Belly  fat  refers to  fat  around  the  abdomen Visceral : This fat surrounds a person's organs. Subcutaneous : This is fat that sits under the skin Why is belly fat dangerous? fatty food A poor diet can increase the risk of heart disease, stroke, and type 2   Why is belly fat dangerou high blood pressure heart diseases stroke type 2 diabetes asthma breast cancer colon cancer Alzheimer's disease  and other types of  dementia How to control your fate You get to chart  your  own  destiny . Maybe you want to start a small business and stay there. .. You reap what ...