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Emil Heitz
Emil Heitz (born 19 October 1892 in Strasbourg, then part of the German Empire - died 8 July 1965 in Lugano, Switzerland) was a German-Swiss botanist and geneticist. In 1928, Heitz detected differences along chromosomes that correlated with linear arrangement of genes, suggesting the terms euchromatin and heterochromatin for differences detectable by suitable chromosomal stains. His subsequent studies developed what he called cytological genetics, laying the ground for what is now termed cytogenetics. In November 1933 Heitz was a signatory of the ''Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State officially translated into English as the Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State was a document presented on 11 November 1933 at the Albert Hall in Leipzi ...''. In 1955, Heitz was the first winner of the Schleiden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strasbourg
Strasbourg ( , ; ; ) is the Prefectures in France, prefecture and largest city of the Grand Est Regions of France, region of Geography of France, eastern France, in the historic region of Alsace. It is the prefecture of the Bas-Rhin Departments of France, department and the Seat of the European Parliament in Strasbourg, official seat of the European Parliament. The city has about three hundred thousand inhabitants, and together Eurométropole de Strasbourg, Greater Strasbourg and the arrondissement of Strasbourg have over five hundred thousand. Strasbourg's functional area (France), metropolitan area had a population of 860,744 in 2020, making it the eighth-largest metro area in France and home to 14% of the Grand Est region's inhabitants. The transnational Eurodistrict Strasbourg-Ortenau Eurodistrict, Strasbourg-Ortenau had a population of roughly 1,000,000 in 2022. Strasbourg is one of the ''de facto'' four main capitals of the European Union (alongside Brussels, Luxembourg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Empire
The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperial Germany, the Second Reich or simply Germany, was the period of the German Reich; . from the unification of Germany in 1871 until the German revolution of 1918–1919, November Revolution in 1918, when the German Reich changed its form of government from a monarchy to a Weimar Republic, republic. The German Empire consisted of States of the German Empire, 25 states, each with its own nobility: four constituent Monarchy, kingdoms, six Grand duchy, grand duchies, five Duchy, duchies (six before 1876), seven Principality, principalities, three Free imperial city, free Hanseatic League, Hanseatic City-state, cities, and Alsace–Lorraine, one imperial territory. While Prussia was one of four kingdoms in the realm, it contained about two-thirds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lugano
Lugano ( , , ; ) is a city and municipality within the Lugano District in the canton of Ticino, Switzerland. It is the largest city in both Ticino and the Italian-speaking region of southern Switzerland. Lugano has a population () of , and an urban agglomeration of over 150,000. It is the List of cities in Switzerland, ninth largest Swiss city. The city lies on Lake Lugano, at its largest width, and, together with the adjacent town of Paradiso, Switzerland, Paradiso, occupies the entire bay of Lugano. The territory of the municipality encompasses a much larger region on both sides of the lake, with numerous isolated villages. The region of Lugano is surrounded by the Lugano Prealps, the latter extending on most of the Sottoceneri region, the southernmost part of Ticino and Switzerland. Both western and eastern parts of the municipality share an international border with Italy. Described as a market town since 984, Lugano was the object of continuous disputes between the soverei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Switzerland
Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is geographically divided among the Swiss Plateau, the Swiss Alps, Alps and the Jura Mountains, Jura; the Alps occupy the greater part of the territory, whereas most of the country's Demographics of Switzerland, 9 million people are concentrated on the plateau, which hosts List of cities in Switzerland, its largest cities and economic centres, including Zurich, Geneva, and Lausanne. Switzerland is a federal republic composed of Cantons of Switzerland, 26 cantons, with federal authorities based in Bern. It has four main linguistic and cultural regions: German, French, Italian and Romansh language, Romansh. Although most Swiss are German-speaking, national identity is fairly cohesive, being rooted in a common historical background, shared ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanist
Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who specialises in this field. "Plant" and "botany" may be defined more narrowly to include only land plants and their study, which is also known as phytology. Phytologists or botanists (in the strict sense) study approximately 410,000 species of Embryophyte, land plants, including some 391,000 species of vascular plants (of which approximately 369,000 are flowering plants) and approximately 20,000 bryophytes. Botany originated as history of herbalism#Prehistory, prehistoric herbalism to identify and later cultivate plants that were edible, poisonous, and medicinal, making it one of the first endeavours of human investigation. Medieval physic gardens, often attached to Monastery, monasteries, contained plants possibly having medicinal benefit. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geneticist
A geneticist is a biologist or physician who studies genetics, the science of genes, heredity, and variation of organisms. A geneticist can be employed as a scientist or a lecturer. Geneticists may perform general research on genetic processes or develop genetic technologies to aid in the pharmaceutical or and agriculture industries. Some geneticists perform experiments in model organisms such as '' Drosophila'', '' C. elegans'', zebrafish, rodents or humans and analyze data to interpret the inheritance of biological traits. A basic science geneticist is a scientist who usually has earned a PhD in genetics and undertakes research and/or lectures in the field. A medical geneticist is a physician who has been trained in medical genetics as a specialization and evaluates, diagnoses, and manages patients with hereditary conditions or congenital malformations; and provides genetic risk calculations and mutation analysis. Education Geneticists participate in courses from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historical Dictionary Of Switzerland
The ''Historical Dictionary of Switzerland'' (Dictionnaire historique de la Suisse; DHS) is an encyclopedia on the history of Switzerland. It aims to present the history of Switzerland in the form of an encyclopaedia, published both on paper and on the internet, in three of the country's national languages: German, French and Italian. When it was completed at the end of 2014, the paper version contained around 36,000 articles divided into thirteen volumes. At the same time, a reduced edition of the dictionary has been published in Romansh language, Romansh under the title ''Lexicon istoric retic'' (LIR), and constitutes the first specialist dictionary in the Rhaeto-Romance languages, Rhaeto-Romance, Switzerland. The encyclopedia is published by a Foundation (charity), foundation under the patronage of the Swiss Academies of Arts and Sciences, Swiss Academy of Humanities and Social Sciences (SAGW/ASSH) and the Swiss Historical Society (SGG-SHH) and is financed by national resear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euchromatin
Euchromatin (also called "open chromatin") is a lightly packed form of chromatin (DNA, RNA, and protein) that is enriched in genes, and is often (but not always) under active transcription. Euchromatin stands in contrast to heterochromatin, which is tightly packed and less accessible for transcription. 92% of the human genome is euchromatic. In eukaryotes, euchromatin comprises the most active portion of the genome within the cell nucleus. In prokaryotes, euchromatin is the ''only'' form of chromatin present; this indicates that the heterochromatin structure evolved later along with the nucleus, possibly as a mechanism to handle increasing genome size. Structure Euchromatin is composed of repeating subunits known as nucleosomes, reminiscent of an unfolded set of beads on a string, that are approximately 11 nm in diameter. At the core of these nucleosomes are a set of four histone protein pairs: H3, H4, H2A, and H2B. Each core histone protein possesses a 'tail' structu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterochromatin
Heterochromatin is a tightly packed form of DNA or '' condensed DNA'', which comes in multiple varieties. These varieties lie on a continuum between the two extremes of constitutive heterochromatin and facultative heterochromatin. Both play a role in the expression of genes. Because it is tightly packed, it was thought to be inaccessible to polymerases and therefore not transcribed; however, according to Volpe et al. (2002), and many other papers since, much of this DNA is in fact transcribed, but it is continuously turned over via RNA-induced transcriptional silencing (RITS). Recent studies with electron microscopy and OsO4 staining reveal that the dense packing is not due to the chromatin. Constitutive heterochromatin can affect the genes near itself (e.g. position-effect variegation). It is usually repetitive and forms structural functions such as centromeres or telomeres, in addition to acting as an attractor for other gene-expression or repression signals. Facultativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytogenetics
Cytogenetics is essentially a branch of genetics, but is also a part of cell biology/cytology (a subdivision of human anatomy), that is concerned with how the chromosomes relate to cell behaviour, particularly to their behaviour during mitosis and meiosis. Techniques used include Karyotype, karyotyping, analysis of G banding, G-banded chromosomes, other cytogenetic banding techniques, as well as molecular cytogenetics such as Fluorescence in situ hybridization, fluorescence ''in situ'' hybridization (FISH) and comparative genomic hybridization (CGH). History Beginnings Chromosomes were first observed in plant cells by Carl Nägeli in 1842. Their behavior in animal (salamander) cells was described by Walther Flemming, the discoverer of mitosis, in 1882. The name was coined by another German anatomist, Heinrich Wilhelm Gottfried von Waldeyer-Hartz, von Waldeyer in 1888. The next stage took place after the development of genetics in the early 20th century, when it was appreciated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vow Of Allegiance Of The Professors Of The German Universities And High-Schools To Adolf Hitler And The National Socialistic State
officially translated into English as the Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State was a document presented on 11 November 1933 at the Albert Hall in Leipzig. It had statements in German, English, Italian, and Spanish by selected German academics and included an appendix of signatories. The purge to remove academics and civil servants with Jewish ancestry began with the Law for the Restoration of the Professional Civil Service, passed on 7 April 1933. The vow of allegiance was signed by those who remained, in support of Nazi Germany. Philosopher Martin Heidegger in his inaugural lecture in May 1933 as rector (academia), rector of the University of Freiburg, and who was later in October appointed "Führer of the university", said (translated): "The much celebrated "academic freedom" is being banished from the German university; for this freedom was not genuine, since it was only negative. It m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schleiden Medal
The Schleiden Medal is an award given by the Academy of Sciences Leopoldina, the National Academy of Germany, to honour outstanding achievements in the field of cellular biology. The award is named after botanist Matthias Jakob Schleiden. Recipients * 1955 : Emil Heitz * 1958 : Albert Frey-Wyssling * 1961 : Jean Brachet (co-recipient) * 1973 : Irene Manton & Torbjörn Caspersson * 1975 : Wilhelm Bernhard * 1977 : Ernst Wohlfarth-Bottermann * 1980 : Karl Lennert * 1983 : Berta Scharrer * 1985 : George Emil Palade * 1987 : Zdeněk Lojda * 1989 : A. G. Everson Pearse * 1991 : Peter Sitte * 1993 : Gottfried Schatz * 1995 : Philipp U. Heitz * 1998 : Avram Hershko * 1999 : Walter Neupert * 2001 : Kai Simons * 2003 : Ari Helenius * 2005 : Wolfgang Baumeister * 2007 : Alexander Varshavsky * 2009 : Thomas Cremer * 2011 : Tom Rapoport * 2013 : Ingrid Grummt * 2015 : Johannes Buchner * 2017 : Anthony A. Hyman * 2019 : Elena Conti * 2021 : Nikolaus Pfanner See also * List o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
