Category Archives: Biology

4 hours ago Figure 1: Schematic showing Left-Right (L-R) asymmetry can develop by actin cytoskeleton (green) dynamics. Remarkably, the actin cytoskeleton always assembles into the anticlockwise orientation, but never achieves the clockwise "mirror" orientation. This internal organization allows the cell to distinguish left from right. Credit: Mechanobiology Institute, National University of Singapore Researchers at the Mechanobiology Institute, National University of Singapore, have made significant advances in our understanding of cellular biology; providing evidence that the inherent 'handedness' of molecular structures directs the behavior of individual cells and confers them the ability to sense the difference between left and right. This work is published in Nature Cell Biology. Cellular decision making Our bodies are made up of hundreds of different types of cells, each of which performs a unique and highly specialized task. Traditionally, the ability of cells to specialize in a given function was attributed to its genetic code. However, it is becoming increasingly clear that cells do not simply live by a set of inherited or pre-determined instructions. Instead, 'cellular decisions' are made dynamically, much like humans make decisions based on the information provided to us by our senses. Although cells do not have the ability to see or … Continue reading →

The Nervous System, Part 1. GCSE BIOLOGY Science The Nervous System, Part 1. GCSE BIOLOGY Science. Needed for AQA, OCR and EDEXCEL Biology. These keywords are explained in this video; CNS, sense organs, stimulus, receptors, sensory, ... By: sciencetutorial4u … Continue reading →

Essential Human Biology: Nervous Tissue - Neuronal Communication HumBio101x Essential Human Biology: Cells and Tissue Week 5: Nervous Tissue - Neuronal Communication. By: Essential Human Biology: Cells and Tissues … Continue reading →

stav biologie obratlovc AVR | Institute of Vertebrate Biology ASCR By: Jirka Rozrazil … Continue reading →

Biology Neural Control Coordination part 19 (Mechanism of Reflex action) CBSE class 11 XI Biology Neural Control Coordination part 19 (Mechanism of Reflex action) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Biology Introduction By: Jessika Spaulding … Continue reading →

For Jane Bergeron, life was all about helping others, whether it involved dissecting fetal pigs, encouraging a student struggling with adolescent angst or negotiating better treatment for patients in a nursing home. She was a direct, no-nonsense biology teacher and a loyal friend who loved bawdy Shakespearean jokes. For nearly 40 years, she was a beloved and respected biology teacher at Hall High School in West Hartford. Jane McCorkle Bergeron, 77, died Feb. 19. She had lived with her husband, Robert Bergeron Jr., in the Pleasant Valley section of Barkhamsted. Jane was born on Sept. 15, 1937 in Philadelphia to Ralph and Mildred McCorkle, but her parents divorced when she was young, and she moved to Tom's River, N.J., where her mother taught Latin. She was interested in science, loved horses and excelled at sports. Of the five girls in her close circle of friends, she was the most adventurous, said Faith Roberts, a classmate as well as smart: Bergeron was ranked fourth in her class academically. She went to Springfield College, prepared to be a physical education teacher, and taught PE for several years. But she had injured her back baling hay, and later damaged her knee while skiing, … Continue reading →

Contact Information Available for logged-in reporters only Newswise Boston (March 29, 2015) For humans, Salmonella is always bad news. The bacterial pathogen causes paratyphoid fever, gastroenteritis and typhoid. But for snakes, the bacteria arent always bad news. Certain species of Salmonella are a natural part of the snake microbial collective. However, the occasional species can cause a disease. Reptile handlers would love to know when they have a potentially problematic pathogen lurking in the midst of their snakes. To better understand the variety of Salmonella species harbored by captive reptiles, Staten Island Zoo has teamed up with the microbiology department at Wagner College. Eden Stark, a graduate student on the project, her advisor, Christopher Corbo, and the zoos curator and head veterinarian Marc Valitutto want to know how many Salmonella species live among the Staten Island Zoo rattlesnakes. The zoo has a long history of exhibiting one of the most comprehensive rattlesnake collections in the world, currently with 21 of 38 species on display. So far, Stark has surveyed 26 species of snakes. Few other institutions have undertaken such broad scale analysis of Salmonella in snakes, notes Valitutto. The research will be presented at the American Society for Biochemistry and … Continue reading →

Biology Neural Control Coordination part 1 (Introduction) CBSE class 11 XI Biology Neural Control Coordination part 1 (Introduction) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Water potential problems explained | Cell biology lecture Water potential | formula and problems - this cell biology lecture explains about solute potential formula and how to solve water potential math problems for csir net life sciences. For more... By: Suman Bhattacharjee … Continue reading →