Black Phosphorus Aids Development of Nanoscale Transistors
by Michael D’Agati The development of classic silicon-based transistors at the nanoscale level has become more challenging, especially within the past decade. Scientists have thus turned towards producing transistors with new materials and geometries. Black phosphorus (BP), a material discovered a few years ago, could potentially provide a breakthrough towards making smaller transistors. It has grown in popularity in electronic device production because of its … Continue reading Black Phosphorus Aids Development of Nanoscale Transistors
Scientists Discover Postnatal Migratory Neurons
by Patrick Yang The cerebral cortex is the outermost layer of the brain and is responsible for advanced processes, such as complex emotion, that distinguish humans from other animals. A key component in cortex development is prenatal neural migration, the movement of neurons before birth, which begins early on in the embryo. These migratory neurons, or Arc neurons, originate near areas of initial development … Continue reading Scientists Discover Postnatal Migratory Neurons
A New Generation of Transistors
by Michael D’Agati The number of transistors in an integrated circuit doubles every other year, according to Moore’s Law. This means that transistors must either continue to shrink beyond the nanoscopic scale or utilize different materials and geometries. However, limitations of atomic interactions at such a small scale make it difficult for transistors to be shrunk past the nanoscopic scale. In order to combat this … Continue reading A New Generation of Transistors
Hormonal Birth Control May Lead to Depression
by Patrick Yang Approximately 62% of women aged 14-44 in the U.S. are using a method of contraception, and 27% of those women are using hormonal contraception, according to a National Health Statistics report. The key to hormonal contraception’s mass appeal lies in its convenience and reversibility; it can be found in pill or patch form and does not have permanent effects. However, the estrogen … Continue reading Hormonal Birth Control May Lead to Depression
Memory and the Stages of a Women’s Menstrual Cycle
by Rideeta Raquib Previous psychological studies have suggested that women have a good memory, but a new study implies that this may be due to the impact of hormones. Other studies that tested rodents showed that there was a correlation between low estradiol (E2) levels and an increase in striatal mediated response strategies. The striatum is a region of the forebrain associated with … Continue reading Memory and the Stages of a Women’s Menstrual Cycle
Stem Cells Successfully Generate a Fully Functional Liver
by Rideeta Raquib Approximately 30 million people are affected by liver disease globally, and the quest to find donors for liver transplants is difficult. There is a lack of functional livers available compared to the liver disease patient population. In some cases, a portion of the liver from a living donor is sufficient for regular function. Stem cells are unspecialized cells that can differentiate … Continue reading Stem Cells Successfully Generate a Fully Functional Liver
Visualizing Microbial Evolution on Antibiotic Landscape
By Jalwa Afroz Bacteria survive by evolving and reproducing in order to overcome environmental challenges. However, there is very little information available on how bacteria physically move in order to attain an environment that is suitable for their needs. Scientists from Harvard Medical School and Technion-Israel Institute of Technology have designed a simple way to show how bacteria move as they become resistant to drugs. … Continue reading Visualizing Microbial Evolution on Antibiotic Landscape
‘Super-agers’ Retain Youthful Memories
By Jalwa Alfroz As humans age, it is normal for cognitive skills, such as memory, to decline. However, some people seem to escape this fate, and are subsequently categorized as super-agers. Investigators at the Harvard-affiliated Massachusetts General Hospital, led by Dr. Bradford Dickerson, revealed that certain areas of the brains of older adults with extraordinary memory performance looked similar to those of young adults. Previously, … Continue reading ‘Super-agers’ Retain Youthful Memories
A Promising Therapeutic Compound for Huntington’s Disease
By Jalwa Alfroz There is currently no available treatment that can promisingly cure the neurodegenerative disorder Huntington’s disease (HD). HD is a progressive neurodegenerative disorder caused by an inherited defect in a single gene encoding the highly conserved protein, Huntington. It is also an autosomal dominant defect, which means that a person only needs one copy of the defective gene to develop the disorder. The … Continue reading A Promising Therapeutic Compound for Huntington’s Disease
Potential Means of Controlling Fevers
by Richard Liang The human body is equipped with effective mechanisms that maintain thermal homeostasis. For example, fevers can be induced to provide an optimal environment to fight certain diseases. However, it is vital that fever temperatures are maintained within a particular threshold. They cannot be too low or the energy available for enzyme activity will be too low. They cannot be too high … Continue reading Potential Means of Controlling Fevers
New Enzyme Responsible for Cell Mediated Death Identified
by Richard Liang The human body has developed mechanisms to deal with genetically damaged cells before they can become a threat. One such mechanism occurs when DNA is excessively damaged. Cells undergo cell death mediated by an enzyme known as poly ADP-ribose polymerase-1 (PARP-1). However, in certain instances like a stroke, the PARP-1 pathway is overly activated, causing mass cell death in the body. … Continue reading New Enzyme Responsible for Cell Mediated Death Identified
Effects of Second Hand Marijuana Smoke
by Richard Liang Though it is known that second hand smoke from tobacco is extremely detrimental to one’s health, second hand marijuana smoke is often seen as less harmful. However, a recent study led by Dr. Xiaoyin Wang and his team of researchers from the Cardiology Division of The University of California supports the theory that second hand marijuana smoke might not be so harmless … Continue reading Effects of Second Hand Marijuana Smoke
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