HydroKlebsiella bacteria in gut biofilms produce hydrogen gas that powers the electron transport chains of stomach Helicobacter implicated in gastric ulcers and cancer. Helicobacterpylori (Hp) is a bacterial pathogen of the stomach that can cause ulcers and cancer. This bacterium moves through the mucus coating … Continue reading The Milgram Experiment: When Does Obeying Authority Become Unethical?
Toxoplasma gondii, a protozoan parasite, occurs worldwide and infects more than 500 million people. Fortunately, most people don’t know they have the parasite. Toxoplasmosis symptoms in humans are variable. Acute toxoplasmosis Acute toxoplasmosis occurs when a person is first exposed to the parasite. Many people … Continue reading Toxoplasmosis – Parasitic Disease: Spectrum of Human Disease Caused by the Cat Parasite, T. gondii
Ships’ captains kept daily records of exact location and weather conditions. Whalers would also record sightings and capture of all species of whale they came across. Sextants and Chronometers In the eighteenth century the accurate determination of latitude was possible with the use of sextants … Continue reading Whalers Logbooks: Preserve Useful Whale Distribution and Population Information
Cluster of differentiation antigens are uniquely expressed on the surface of all lymphocytes. CD antigens serve as biochemical markers characteristic for a particular cell type indicating the lineage or stage of maturity. CD antigens are designated CD1, CD2, CD3, CD4, etc. The functions of many … Continue reading Immune Cells and Function: Lymphocytes and macrophages