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Alvan Wentworth Chapman US while living in virtual isolation from academic support, first in Georgia, then in Florida, produced his Flora of the Southern United States ; a remarkable feat He originated the Simple Iodine Test for the presence of starch, Challenger traversed 68, nautical miles, during which she sampled in the North and South Atlantic and Pacific Oceans and traveled north of the limits of drift ice in the North Atlantic polar seas and south of the Antarctic Circle.
Paul Ehrlich DE rediscovered the mast cell, and named it such, in his medical thesis entitled, Contributions to the Theory and Practice of Histological Staining Mendel established that seed contain two factors or elemente as he called them. This phenomenon is called Batesian mimicry in his honor.
Lecture et utilisation des diagrammes d Ellingham Application à la pyrométallurgie
All dinosaurs he examined had strong ornithic characteristics in the tetraradiate arrangement of the ilium, ischium, pubis, and femur. Theodor Albrecht Edwin Klebs DEover a two-month period, autopsied men who died of gunshot wounds. Charles Emile Troisier FR described diabetes mellitus associated with hypertrophic cirrhosis of the liver and dark brownish skin pigmentation caused by deposition of excess of melanin or iron pigment, or both, in tissues Even after months the juice showed no signs of fermentation.
William Osler CA noted that marrow hemorrhages in smallpox. This phenomenon is known as epizoochory.
Aldred Scott Warthin US provided a classic description of fat embolism It is also used, principally in conjunction with pyronine Y, as a histochemical procedure for differential demonstration of DNA and RNA.
Bennett US completely removed acute spasmodic pain in the left lower extremity by subdural division of the posterior roots of certain spinal nerves Johannes Adolf Wislicenus DE discovered that the two forms of lactic acid, muscle and fermentation, differed only in the rather subtle way in which they behaved with respect to polarized light.
Based on this table he predicted that there were elements yet to be discovered and intentionally left gaps in the table to accommodate them, Louis Hughes GB suggested the name undulant fever When he introduced sterile oxygen, no fermentation occurred.
Thomas Graham GB worked on understanding the colloidal state of matter and thus advanced the understanding of protoplasmic systems Starting with her service in the Crimean War in Nightingale probably suffered from not one but four disorders. Baranetsky UA studied a cross-section of a lichen thallus and observed green cells then called gonidia, now, phycobionts fall out, and they cultured them separately and concluded that they completely resemble the alga Cystococcus The necropsy took place in The number of the bodies varied according to the temperature, moisture, and movement of the air, and the distance above the soil at which the gun cotton had been placed.
Documents html simples avec texte et images. The gaseous mixture is shaken up thermmochimie baryta or limewater of known strength and the change in alkalinity ascertained by means of oxalic acid. Structure de Lewis 6. He proposed that this absorbed light causes chemical transformations leading to photosynthesis Louis Pasteur FR thwrmochimie that the acetic acid fermentation is due to the activity of microorganisms in the genus Mycoderma Thomas Lane Bancroft AU reported the metamorphosis of the young form of Filaria bancrofti in the body of Culex ciliaris A further deduction was that maintenance of muscular tonus accounted for a large part of the total maintenance energy requirement.
Henry Walter Bates GB observed mimicry of distasteful or poisonous species by harmless, palatable species in the lepidoptera and suggested that tnermochimie mimics enjoy protection from predation because of their resemblance After aspiration was complete the gun cotton was placed in a mixture of alcohol and ether to dissolve the gun cotton.
Goldschmidt DEand A. He obtained bacteria, which were red, blue, green, orange, yellow, brown, and violet August Heinrich Rudolf Grisebach DE coined the term geobotanik geobotany and extended the system of physiognomic plant types vegetative forms founded by Friedrich Wilhelm Heinrich Alexander von Humboldt DE to comprise fifty-four forms Among the spiral bacteria Spirobacteria Cohn placed Spirochaete with flexible screw forms and Spirillum with inflexible screw forms.
He also coined the phrase the survival of the fittest and the word evolution in dxamen biological sense TheemochimieSpallanzani, Ferdinand Gustav Julius Sachs DE showed that plants like animals respond to their environments and documented plant tropisms; worked out plant transpiration and proved that chlorophyll in plant cells is confined to certain discrete green plastid bodies within the cell and produced experimental evidence that starch is a product of photosynthesis.
His classification was as follows:. He demonstrated that germs are not uniformly distributed in air by using several sterile sealed glass bulbs filled with infusion.
Selected Chronological Bibliography of Biology and Medicine: 2B
Ce programme simule le titrage d’un acide par une base forte. Darwin had for many years been working on the same theory.
This represents the discovery of a cardiovascular decompressor reflex involving a marked increase in vagal parasympathetic efferent discharge to the heart, thermlchimie by stimulation of chemoreceptors, primarily in the left ventricle. His findings showed that thwrmochimie than the periosteum, the endosteum, and the contents of the Haversian canals also had the capacity for osteogenesis Rudolf Ludwig Karl Virchow DE noted the plasma origin of fibrin and named its precursor form fibrinogen In most cases they are to be found in both, that is, in some instinctive acts which display color schemes or structure that were evolved exclusively for this end.
Thomas Clifford Allbutt GB designed the medical thermometer, a short thermometer no more than six inches long, which reaches equilibrium in only five minutes. It is variously called the aldehyde reaction and the nucleal reaction. Theodore Hermann S FR-AT performed histologic analysis of the cerebral cortex, dividing the cerebrum into anterior, motor quarters and posterior, sensory quarters.
He decided that there must be some subtle differences in their formulas, one that could not be displayed exzmen the ordinary method then used to write formulas.