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Valentin Haecker
Ferdinand Carl Valentin Haecker (15 September 1864 – 19 December 1927) was a German zoologist, reader at Freiburg University from 1892. In 1900, he became professor at the University of Applied Sciences Stuttgart and in 1909 at Martin Luther University of Halle-Wittenberg. He was president of the ''Deutsche Zoologische Gesellschaft'' from 1922. He died unexpectedly from a stroke. Haecker's contributions span the fields of ornithology, plankton ( Radiolaria) cell biology, developmental physiology, genetics (where he established the subfield of '' phenogenetics''). He also published a historical treatise on Goethe Johann Wolfgang von Goethe (28 August 1749 – 22 March 1832) was a German poet, playwright, novelist, scientist, statesman, theatre director, and critic. His works include plays, poetry, literature, and aesthetic criticism, as well as t ...'s work on morphology.Goethes morphologische Arbeiten und die neuere Forschung, Jena 1927. References * Rudolf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Applied Sciences Stuttgart
The Hochschule für Technik Stuttgart - University of Applied Sciences (german: Hochschule für Technik Stuttgart, HFT Stuttgart) is one of ten institutes for higher education in Stuttgart Stuttgart (; Swabian: ; ) is the capital and largest city of the German state of Baden-Württemberg. It is located on the Neckar river in a fertile valley known as the ''Stuttgarter Kessel'' (Stuttgart Cauldron) and lies an hour from the .... It was founded in 1832 as a school for construction craftsmen (Winterschule für Bauhandwerker) and was inaugurated as a University of Applied Sciences in 1971. The campus is located in downtown Stuttgart. Faculties and programmes There are three faculties offering the following programmes: *Faculty of Architecture and Design: ** Architecture ( Bachelor and Master) **Interior Design (Bachelor) ** Climate engineering (Bachelor) **International Project Management (Master) **International Master of Interior-Architectural Design (Master) ** Urb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Luther University Of Halle-Wittenberg
Martin Luther University of Halle-Wittenberg (german: Martin-Luther-Universität Halle-Wittenberg), also referred to as MLU, is a public, research-oriented university in the cities of Halle, Saxony-Anhalt, Halle and Wittenberg and the largest and oldest university in the German State of Germany, state of Saxony-Anhalt. MLU offers German and international (English) courses leading to academic degrees such as Bachelor of Arts, BA, B.Sc., BSc, Master of Arts, MA, M.Sc., MSc, Doctorate, doctoral degrees, and Habilitation. The university was created in 1817 through the merger of the University of Wittenberg (founded in 1502) and the University of Halle (founded in 1694). MLU is named after Protestant Reformation, Protestant reformer Martin Luther, who was a professor in Wittenberg. Today, the university campus is located in Halle, while ''Leucorea Foundation'' in Wittenberg serves as MLU's convention centre. Both Halle and Wittenberg are about one hour from Berlin via the Berlin–Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plankton
Plankton are the diverse collection of organisms found in water (or air) that are unable to propel themselves against a current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales. Marine plankton include bacteria, archaea, algae, protozoa and drifting or floating animals that inhabit the saltwater of oceans and the brackish waters of estuaries. Freshwater plankton are similar to marine plankton, but are found in the freshwaters of lakes and rivers. Plankton are usually thought of as inhabiting water, but there are also airborne versions, the aeroplankton, that live part of their lives drifting in the atmosphere. These include plant spores, pollen and wind-scattered seeds, as well as microorganisms swept into the air from terrestrial dust storms and oceanic plankton swept into the air by sea spray. Though m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiolaria
The Radiolaria, also called Radiozoa, are protozoa of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm. The elaborate mineral skeleton is usually made of silica. They are found as zooplankton throughout the global ocean. As zooplankton, radiolarians are primarily heterotrophic, but many have photosynthetic endosymbionts and are, therefore, considered mixotrophs. The skeletal remains of some types of radiolarians make up a large part of the cover of the ocean floor as siliceous ooze. Due to their rapid change as species and intricate skeletons, radiolarians represent an important diagnostic fossil found from the Cambrian onwards. Description Radiolarians have many needle-like pseudopods supported by bundles of microtubules, which aid in the radiolarian's buoyancy. The cell nucleus and most other organelles are in the endoplasm, while the ectoplasm is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Genetics
The history of genetics dates from the classical era with contributions by Pythagoras, Hippocrates, Aristotle, Epicurus, and others. Modern genetics began with the work of the Augustinian friar Gregor Johann Mendel. His work on pea plants, published in 1866, provided the initial evidence that, on its rediscovery in 1900, helped to establish the theory of Mendelian inheritance. In ancient Greece, Hippocrates suggested that all organs of the body of a parent gave off invisible “seeds,” miniaturized components, that were transmitted during sexual intercourse and combined in the mother’s womb to form a baby. In the Early Modern times, William Harvey's book ''On Animal Generation'' contradicted Aristotle's theories of genetics and embryology. The 1900 rediscovery of Mendel's work by Hugo de Vries, Carl Correns and Erich von Tschermak led to rapid advances in genetics. By 1915 the basic principles of Mendelian genetics had been studied in a wide variety of organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenogenetics
In genetics, the phenotype () is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes, its biochemical and physiological properties, its behavior, and the products of behavior. An organism's phenotype results from two basic factors: the expression of an organism's genetic code, or its genotype, and the influence of environmental factors. Both factors may interact, further affecting phenotype. When two or more clearly different phenotypes exist in the same population of a species, the species is called polymorphic. A well-documented example of polymorphism is Labrador Retriever coloring; while the coat color depends on many genes, it is clearly seen in the environment as yellow, black, and brown. Richard Dawkins in 1978 and then again in his 1982 book ''The Extended Phenotype'' suggested that one can regard bird nests and other built structures such as cad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Science And Technology
The history of science and technology (HST) is a field of history that examines the understanding of the natural world (science) and the ability to manipulate it (technology) at different points in time. This academic discipline also studies the cultural, economic, and political impacts of and contexts for scientific practices. Academic study of history of science History of science is an academic discipline with an international community of specialists. Main professional organizations for this field include the History of Science Society, the British Society for the History of Science, and the European Society for the History of Science. Much of the study of the history of science has been devoted to answering questions about what science ''is'', how it ''functions'', and whether it exhibits large-scale patterns and trends. History of the academic study of history of science Histories of science were originally written by practicing and retired scientists, starting prim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goethe
Johann Wolfgang von Goethe (28 August 1749 – 22 March 1832) was a German poet, playwright, novelist, scientist, statesman, theatre director, and critic. His works include plays, poetry, literature, and aesthetic criticism, as well as treatises on botany, anatomy, and colour. He is widely regarded as the greatest and most influential writer in the German language, his work having a profound and wide-ranging influence on Western literary, political, and philosophical thought from the late 18th century to the present day.. Goethe took up residence in Weimar in November 1775 following the success of his first novel, '' The Sorrows of Young Werther'' (1774). He was ennobled by the Duke of Saxe-Weimar, Karl August, in 1782. Goethe was an early participant in the '' Sturm und Drang'' literary movement. During his first ten years in Weimar, Goethe became a member of the Duke's privy council (1776–1785), sat on the war and highway commissions, oversaw the reopening of si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance ( shape, structure, colour, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of the internal parts like bones and organs, i.e. internal morphology (or anatomy). This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neue Deutsche Biographie
''Neue Deutsche Biographie'' (''NDB''; Literal translation, literally ''New German Biography'') is a Biography, biographical reference work. It is the successor to the ''Allgemeine Deutsche Biographie'' (ADB, Universal German Biography). The 26 volumes published thus far cover more than 22,500 individuals and families who lived in the German language area. NDB is published in German by the Historical Commission at the Bavarian Academy of Sciences and Humanities and printed by Duncker & Humblot in Berlin. The index and full-text articles of the first 25 volumes are freely available online via the website ''German Biography'' (''Deutsche Biographie'') and the Biographical Portal. Scope NDB is a comprehensive reference work, similar to ''Dictionary of National Biography'', ''Dictionary of American Biography'', ''American National Biography'', ''Dictionary of Canadian Biography'', ''Dictionary of Australian Biography'', ''Dictionary of New Zealand Biography'', ''Diccionario Biográfi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Geneticists
German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Germanic peoples (Roman times) * German language **any of the Germanic languages * German cuisine, traditional foods of Germany People * German (given name) * German (surname) * Germán, a Spanish name Places * German (parish), Isle of Man * German, Albania, or Gërmej * German, Bulgaria * German, Iran * German, North Macedonia * German, New York, U.S. * Agios Germanos, Greece Other uses * German (mythology), a South Slavic mythological being * Germans (band), a Canadian rock band * "German" (song), a 2019 song by No Money Enterprise * ''The German'', a 2008 short film * "The Germans", an episode of ''Fawlty Towers'' * ''The German'', a nickname for Congolese rebel André Kisase Ngandu See also * Germanic (other) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century German Zoologists
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
