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Hermann Jakob Knapp
Jacob Hermann Knapp (March 17, 1832 – April 30, 1911), also known as Hermann Knapp, was a German-American ophthalmologist and otolaryngologist. Biography Knapp was born in Dauborn, Nassau. He earned his medical degree from the University of Giessen in 1854. As a young physician he studied with Franciscus Cornelis Donders in Utrecht, William Bowman in London, Albrecht von Graefe in Berlin and Hermann von Helmholtz in Heidelberg. From 1860 until 1868 he was a professor of ophthalmology at Heidelberg. He emigrated to New York City, where he worked as a surgeon. In 1869 he founded the New York Ophthalmic and Aural Institute, which from 1913 to 1939 was called the Herman Knapp Memorial Hospital. In 1882, he was made professor of the New York University Medical College. In 1888, he was appointed professor of ophthalmology at the College of Physicians and Surgeons, Columbia University, and in 1902 he became emeritus professor. His son, Arnold Knapp (1869–1956) was also a noted o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hünfelden
Hünfelden is a municipality in Limburg-Weilburg district in Hesse, Germany. Hünfelden lies on the ''Hühnerstraße'', an historic part of ''Bundesstraße'' 417. Geography Location Hünfelden lies in the Taunus north of Wiesbaden, 9 km southeast of Limburg an der Lahn. Neighbouring communities Hünfelden borders in the north on the town of Limburg and the community of Brechen, in the east on the community of Selters and the town of Bad Camberg (all in Limburg-Weilburg), in the south on the communities of Hünstetten and Aarbergen (both in Rheingau-Taunus-Kreis), and in the west on the ''Verbandsgemeinden'' (a kind of collective municipality) of Aar-Einrich and Diez (both in Rhein-Lahn-Kreis in Rhineland-Palatinate). Constituent communities The community consists of seven ''Ortsteile'', each formerly autonomous, listed here with population figures as at 1 January 2008. *Kirberg: 2394 *Dauborn: 2764 *Mensfelden: 1339 *Heringen: 1055 *Nauheim: 997 *Ohren: 811 *Nees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophthalmology
Ophthalmology (, ) is the branch of medicine that deals with the diagnosis, treatment, and surgery of eye diseases and disorders. An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Following a medical degree, a doctor specialising in ophthalmology must pursue additional postgraduate residency training specific to that field. In the United States, following graduation from medical school, one must complete a four-year residency in ophthalmology to become an ophthalmologist. Following residency, additional specialty training (or fellowship) may be sought in a particular aspect of eye pathology. Ophthalmologists prescribe medications to treat ailments, such as eye diseases, implement laser therapy, and perform surgery when needed. Ophthalmologists provide both primary and specialty eye care—medical and surgical. Most ophthalmologists participate in academic research on eye diseases at some point in their training and many inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophthalmotrope
An ophthalmotrope is an apparatus for demonstrating the movements of the eye and the action of the different muscles which produce them, consisting essentially of a model eyeball to which are attached strings and pulleys to duplicate the line force of the muscles. Movements of the eye are kinematically complex and can be described as a combination of rotations about changing rotation centers. But even when ocular mechanics are simplified to pure rotations about a head-fixed rotation center, their noncommutative property makes them difficult to visualize. Ruete, Listing, Donders, Helmholtz, von Graefe, Volkmann and many others have provided the broad outline of an answer to the question how the eye rotates during eye movements. History Historically, mechanical representations of oculomotor mechanics have been used for visualization of eye movements and their interaction with visual geometry. Many mechanical models of eye movements have been constructed and studied in the ni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Eye
The human eye is a sensory organ in the visual system that reacts to light, visible light allowing eyesight. Other functions include maintaining the circadian rhythm, and Balance (ability), keeping balance. The eye can be considered as a living optics, optical device. It is approximately spherical in shape, with its outer layers, such as the outermost, white part of the eye (the sclera) and one of its inner layers (the pigmented choroid) keeping the eye essentially stray light, light tight except on the eye's optic axis. In order, along the optic axis, the optical components consist of a first lens (the cornea, cornea—the clear part of the eye) that accounts for most of the optical power of the eye and accomplishes most of the Focus (optics), focusing of light from the outside world; then an aperture (the pupil) in a Diaphragm (optics), diaphragm (the Iris (anatomy), iris—the coloured part of the eye) that controls the amount of light entering the interior of the eye; then an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tissue (biology)
In biology, tissue is an assembly of similar cells and their extracellular matrix from the same embryonic origin that together carry out a specific function. Tissues occupy a Biological organisation#Levels, biological organizational level between cell (biology), cells and a complete organ (biology), organ. Accordingly, organs are formed by the functional grouping together of multiple tissues. The English word "tissue" Morphological derivation, derives from the French word "", the past participle of the verb tisser, "to weave". The study of tissues is known as histology or, in connection with disease, as histopathology. Xavier Bichat is considered as the "Father of Histology". Plant histology is Studied Space Shuttle designs, studied in both plant anatomy and Plant physiology, physiology. The classical tools for studying tissues are the Microtome#Applications, paraffin block in which tissue is embedded and then sectioned, the staining, histological stain, and the Microscope, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elastin
Elastin is a protein encoded by the ''ELN'' gene in humans and several other animals. Elastin is a key component in the extracellular matrix of gnathostomes (jawed vertebrates). It is highly Elasticity (physics), elastic and present in connective tissue of the body to resume its shape after stretching or contracting. Elastin helps skin return to its original position whence poked or pinched. Elastin is also in important load-bearing tissue of vertebrates and used in places where storage of mechanical energy is required. Function The ''ELN'' gene encodes a protein that is one of the two components of elastic fibers. The encoded protein is rich in hydrophobic amino acids such as glycine and proline, which form mobile hydrophobic regions bounded by crosslinks between lysine residues. Multiple transcript variants encoding different isoforms have been found for this gene. Elastin's soluble precursor is tropoelastin. Mechanism of elastic recoil The characterization of disorder is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angioid Streaks
Angioid streaks, also called Knapp streaks or Knapp striae, are small breaks in Bruch's membrane, an elastic tissue containing membrane of the retina that may become calcified and crack. Up to 50% of angioid streak cases are idiopathic. It may occur secondary to blunt trauma, or it may be associated with many systemic diseases. The condition is usually asymptomatic, but decrease in vision may occur due to choroidal neovascularization. Clinical features Angioid streaks are often associated with pseudoxanthoma elasticum, but have been found to occur in conjunction with other disorders, including Paget's disease, sickle cell disease and Ehlers–Danlos syndrome. These streaks can have a negative impact on vision due to choroidal neovascularization or choroidal rupture. Also, vision can be impaired if the streaks progress to the fovea and damage the retinal pigment epithelium. Signs Retinal fundus examination may reveal grey or dark red spoke like lesions around optic disk and rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wiesbaden
Wiesbaden (; ) is the capital of the German state of Hesse, and the second-largest Hessian city after Frankfurt am Main. With around 283,000 inhabitants, it is List of cities in Germany by population, Germany's 24th-largest city. Wiesbaden forms a conurbation with a population of around 500,000 with the neighbouring city of Mainz. This conurbation is in turn embedded in the Rhine-Main, Rhine-Main Metropolitan Region—Germany's second-largest metropolitan region after Rhine-Ruhr—which also includes the nearby cities of Frankfurt am Main, Darmstadt, Offenbach am Main, and Hanau, and has a combined population exceeding 5.8 million. The city is located on the Rhine (Upper Rhine), at the foothills of the Taunus, opposite the Rhineland-Palatine capital of Mainz, and the city centre is located in the wide valley of the small Salzbach (Wiesbaden), Salzbach stream. Wiesbaden lies in the Rheingau (wine region), Rheingau wine-growing region, one of Germany's List of German wine regions, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salomon Moos
Salomon Moos (15 July 1831 – 15 July 1895) was a German otologist born in Randegg, a village in the Grand Duchy of Baden. He studied medicine at the University of Heidelberg, and following graduation worked as an assistant at the medical clinic of Karl Ewald Hasse. Afterwards, he continued his education in Prague and Vienna, and in 1859 became privat-docent at Heidelberg. In 1866 he was an associate professor, later being appointed director and chief surgeon of the otology clinic at the University of Heidelberg. His better known research involved diseases of the inner ears' labyrinth (inner ear), labyrinth. Moos is credited with being the first physician to point out that in certain infectious diseases, micro-organisms within the labyrinth negatively affect hearing and equilibrium. Publications In 1869 he co-founded the ''Archiv für Augen- und Ohrenheilkunde'' ("Archives of Ophthalmology and Otology") with Hermann Jakob Knapp, a journal that was published in German and Englis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herman Knapp Tower 11-24-08
Herman may refer to: People * Herman (name), list of people with this name * Saint Herman (other) * Peter Noone (born 1947), known by the mononym Herman Places in the United States * Herman, Arkansas * Herman, Michigan * Herman, Minnesota * Herman, Nebraska * Herman, Pennsylvania * Herman, Dodge County, Wisconsin * Herman, Shawano County, Wisconsin * Herman, Sheboygan County, Wisconsin Place in India * Herman, Shopian Other uses * ''Herman'' (comic strip) * ''Herman'' (film), a 1990 Norwegian film * Herman Building, a historic building in Hollywood, California * Herman the Bull, a bull used for genetic experiments in the controversial lactoferrin project of GenePharming, Netherlands * Herman the Clown (), a Finnish TV clown from children's TV show performed by Veijo Pasanen * Herman's Hermits, a British pop combo * Herman cake (also called Hermann), a type of sourdough bread starter or Amish Friendship Bread starter * ''Herman'' (album) by 't Hof Van Commerce See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia University
Columbia University in the City of New York, commonly referred to as Columbia University, is a Private university, private Ivy League research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church (Manhattan), Trinity Church in Manhattan, it is the oldest institution of higher education in New York (state), New York and the fifth-First university in the United States, oldest in the United States. Columbia was established as a Colonial colleges, colonial college by royal charter under George II of Great Britain. It was renamed Columbia College (New York), Columbia College in 1784 following the American Revolution, and in 1787 was placed under Trustees of Columbia University in the City of New York, a private board of trustees headed by former students Alexander Hamilton and John Jay. In 1896, the campus was moved to its current location in Morningside Heights and renamed Columbia University. Columbia is organized into twenty schoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York College Of Physicians And Surgeons
The Columbia University College of Physicians and Surgeons (officially known as Columbia University Roy and Diana Vagelos College of Physicians and Surgeons) is the medical school of Columbia University, located at the Columbia University Irving Medical Center in the Washington Heights neighborhood of Manhattan. Founded in 1767 by Samuel Bard as the medical department of King's College (now Columbia University), the College of Physicians and Surgeons was the first medical school in the Thirteen Colonies to award the Doctor of Medicine (MD) degree. Beginning in 1993, the College of Physicians and Surgeons was also the first U.S. medical school to hold a white coat ceremony. Following a gift of $250 million from Roy and Diana Vagelos in 2017, the school became the first medical school in the nation to replace loans with scholarships for all students who qualify for financial aid when it did so in 2018. Columbia is affiliated with NewYork-Presbyterian Hospital. Students additio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
