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Robert Lauterborn
Robert Lauterborn (23 October 1869 - 11 September 1952) was a German botanist, limnologist and protozoologist. Lauterborn was born in Ludwigshafen where his father was a publisher. His mother died when he was two and he was taken care of by his aunt Pauline while his father married his mother's sister. Robert went to the local school and then studied at Mannheim, leaving school in 1889 with an Abitur. He then studied zoology and botany in Heidelberg and graduated ''Dr. phil. nat.'' in 1897. He later became a professor in Karlsruhe. Lauterborn worked on river ecology and the biology of wastewater. His Ph.D. work was on dinoflagellates (esp. ''Ceratium hirundinella''). He later conducted large scale studies on the limnology of the Rhine waters. He also transcribed and published the work of the Strasbourg fisherman-naturalist Leonhard Baldner who had also conducted studies on the Rhine in the 1600s. He described the genus ''Paulinella'' (named after his step-mother). Lauterborn influe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abitur
''Abitur'' (), often shortened colloquially to ''Abi'', is a qualification granted at the end of secondary education in Germany. It is conferred on students who pass their final exams at the end of ISCED 3, usually after twelve or thirteen years of schooling (see also, for Germany, ''Abitur'' after twelve years). In German, the term has roots in the archaic word , which in turn was derived from the Latin (future active participle of , thus "someone who is going to leave"). As a matriculation examination, ''Abitur'' can be compared to A levels, the ''Matura'' or the International Baccalaureate Diploma, which are all ranked as level 4 in the European Qualifications Framework. In Germany Overview The ("certificate of general qualification for university entrance"), often referred to as ("''Abitur'' certificate"), issued after candidates have passed their final exams and have had appropriate grades in both the last and second last school year, is the document which contains t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonhard Baldner
Leonhard Baldner or Leonard Baltner (1612 – 1 February 1694) was a Strasbourg fisherman and naturalist who produced a hand-written illustrated book on the fishes, birds, and mammals titled ''Vogel-, Fisch- und Thierbuch''. Only six manuscript copies are now known to exist, two are dated 1653 and the other four 1666. He was one of the early pioneers to use glass aquariums to study fish in life. He was also possibly the first to write on the migration and life-history of the salmon. The exact date of birth of Baldner is unknown but he was born in an old fisher family in Strasbourg. He married Salome, daughter of Hans Michael Fries on January 25, 1636, and had four children. He married his second wife Anna Ursula, daughter of a goldsmith, Abraham Sprengel in 1650 and they had four children. He worked as a toll collector, later a forester and then a forest manager. After the death of his second wife, he married Barbara, daughter of Benedictus Grossen, a professor of Hebrew. They too h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paulinella
''Paulinella'' is a genus of at least eleven species including both freshwater and marine amoeboids. Its most famous members are the three photosynthetic species ''P. chromatophora'', ''P. micropora'' and ''P. longichromatophora'', the first two being freshwater forms and the third a marine form, which have recently (in evolutionary terms) taken on a cyanobacterium as an endosymbiont. As a result they are no longer able to perform phagocytosis like their non-photosynthetic relatives. The event to permanent endosymbiosis probably occurred with a cyanobiont. The resulting organelle is a photosynthetic plastid that is often referred to as a 'cyanelle' or chromatophore, and is the only other known primary endosymbiosis event of photosynthetic cyanobacteria, although primary endosymbiosis with a non-photosynthetic cyanobacterial symbiont have occurred in the diatom family ''Rhopalodiaceae''. The endosymbiotic event happened about 90–140 million years ago in a cyanobacterial species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Thienemann
August Friedrich Thienemann (7 September 1882 in Gotha – 22 April 1960 in Plön) was a German limnologist, zoologist and ecologist. He studied zoology at the University of Greifswald. He was an associate Professor of Hydrobiology at the University of Kiel, and director of the former Hydrobiologische Anstalt der Kaiser-Wilhelm-Gesellschaft (now the Max-Planck-Institut für Limnologie) at Plön. A co-founder of Societas Internationalis Limnologiae, Thienemann is best known for his work on the biology of the Chironomidae, and his contributions to the field of lake typology. He also introduced the concept of trophic level terminology in 1920. Over the course of his career, Thienemann published 460 works. One of his more noted students was Carmel Humphries, an Irish expert in Chironomidae The Chironomidae (informally known as chironomids, nonbiting midges, or lake flies) comprise a family of nematoceran flies with a global distribution. They are closely related to the Ceratopo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1869 Births
Events January–March * January 3 – Abdur Rahman Khan is defeated at Tinah Khan, and exiled from Afghanistan. * January 5 – Scotland's oldest professional football team, Kilmarnock F.C., is founded. * January 20 – Elizabeth Cady Stanton is the first woman to testify before the United States Congress. * January 21 – The P.E.O. Sisterhood, a philanthropic educational organization for women, is founded at Iowa Wesleyan College in Mount Pleasant, Iowa. * January 27 – The Republic of Ezo is proclaimed on the northern Japanese island of Ezo (which will be renamed Hokkaidō on September 20) by remaining adherents to the Tokugawa shogunate. * February 5 – Prospectors in Moliagul, Victoria, Australia, discover the largest alluvial gold nugget ever found, known as the "Welcome Stranger". * February 20 – Ranavalona II, the Merina Queen of Madagascar, is baptized. * February 25 – The Iron and Steel Institute is formed in Lon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1952 Deaths
Year 195 ( CXCV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Scrapula and Clemens (or, less frequently, year 948 ''Ab urbe condita''). The denomination 195 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus has the Roman Senate deify the previous emperor Commodus, in an attempt to gain favor with the family of Marcus Aurelius. * King Vologases V and other eastern princes support the claims of Pescennius Niger. The Roman province of Mesopotamia rises in revolt with Parthian support. Severus marches to Mesopotamia to battle the Parthians. * The Roman province of Syria is divided and the role of Antioch Antioch on the Orontes (; grc-gre, Ἀντιόχεια ἡ ἐπὶ Ὀρόντου, ''Antiókhei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Limnologists
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) * Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century German Botanists
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] |
