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Fredrik Elfving
Fredrik Emil Volmar Elfving (9 December 1854 – 21 June 1942) was a Swedish-speaking Finnish botanist, plant physiologist, and university administrator. During his university training, he frequently traveled abroad to learn new scientific methods and techniques from other prominent European scientists. Although his earliest publications dealt with phytogeography and phycology (particularly the green alga known as the desmids), his most notable research was in plant physiology. Early in his career, he published seminal work on the flow of water through the stems of woody plants, and investigated the phenomenon of transversely geotropic plant organs. In contrast to his works on plant physiology, his later experiments and views on lichens, which he himself considered his most important work, was far less favourably received. Elfving became a Professor of botany at the University of Helsinki in 1892, a position he held until his retirement in 1926. A lively and enthusiastic teac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ekenäs, Finland
Ekenäs (; fi, Tammisaari ) is a town and former municipality in Finland that comprised the former municipalities of Snappertuna and Tenala together with the town of Ekenäs. It was merged with Pohja and Karis to form the new municipality of Raseborg on January 1, 2009. Ekenäs is in the province of Southern Finland, and is part of the Uusimaa ( sv, Nyland) region. The town had a population of 14,754 (as of 31 December 2008) and covered a land area of . The population density was . The town is bilingual, with the majority being Swedish speakers (81%), and the minority Finnish speakers (17%). History Ekenäs is Finland's seventh oldest town and the first of the non-medieval town. King Gustav Wasa granted town rights to Ekenäs in 1546, but even before that Ekenäs played a significant role in maritime transport. Today it is mostly noted for its archipelago, part of which is the Ekenäs Archipelago National Park. The old, mainly wooden town center is protected due to its cultu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geotropism
Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant in response to gravity pulling on it. It also occurs in fungi. Gravity can be either "artificial gravity" or natural gravity. It is a general feature of all higher and many lower plants as well as other organisms. Charles Darwin was one of the first to scientifically document that roots show ''positive gravitropism'' and stems show ''negative gravitropism''. That is, roots grow in the direction of gravitational pull (i.e., downward) and stems grow in the opposite direction (i.e., upwards). This behavior can be easily demonstrated with any potted plant. When laid onto its side, the growing parts of the stem begin to display negative gravitropism, growing (biologists say, turning; see tropism) upwards. Herbaceous (non-woody) stems are capable of a degree of actual bending, but most of the redirected movement occurs as a consequence of root or stem growth outside. The mechanism is ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogam
A cryptogam (scientific name Cryptogamae) is a plant (in the wide sense of the word) or a plant-like organism that reproduces by spores, without flowers or seeds. The name ''Cryptogamae'' () means "hidden reproduction", referring to the fact that no seed is produced, thus cryptogams represent the non-seed bearing plants. Other names, such as "thallophytes", " lower plants", and "spore plants" are also occasionally used. As a group, Cryptogamae are the opposite of the Phanerogamae () or Spermatophyta (), the seed plants. The best-known groups of cryptogams are algae, lichens, mosses, and ferns, but it also includes non-photosynthetic organisms traditionally classified as plants, such as fungi, slime molds, and bacteria. The classification is now deprecated in Linnaean taxonomy. At one time, the cryptogams were formally recognised as a group within the plant kingdom. In his system for classification of all known plants and animals, Carl Linnaeus (1707–1778) divided the plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loviisa
Loviisa (; sv, Lovisa ; formerly Degerby) is a municipality and town of inhabitants () on the southern coast of Finland. It is located from Helsinki and from Porvoo. About 43 per cent of the population is Swedish-speaking. The municipality covers an area of of which is water. The population density is . The neighboring municipalities of Liljendal, Pernå and Ruotsinpyhtää were consolidated with Loviisa on 1 January 2010. Loviisa was founded in 1745, as a border fortress against Russia. Most of the fortifications have been preserved. Loviisa was originally called ''Degerby'', but king Adolf Frederick of Sweden renamed the city after his spouse Lovisa Ulrika after visiting the town in 1752. Loviisa is the site of two of Finland's nuclear reactors, two VVER units each of 488 MWe, at the Loviisa Nuclear Power Plant. The other operating reactors are at the Olkiluoto Nuclear Power Plant. History 18th century The town of Degerby was founded on the grounds of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Née
A birth name is the name of a person given upon birth. The term may be applied to the surname, the given name, or the entire name. Where births are required to be officially registered, the entire name entered onto a birth certificate or birth register may by that fact alone become the person's legal name. The assumption in the Western world is often that the name from birth (or perhaps from baptism or ''brit milah'') will persist to adulthood in the normal course of affairs—either throughout life or until marriage. Some possible changes concern middle names, diminutive forms, changes relating to parental status (due to one's parents' divorce or adoption by different parents). Matters are very different in some cultures in which a birth name is for childhood only, rather than for life. Maiden and married names The French and English-adopted terms née and né (; , ) denote an original surname at birth. The term ''née'', having feminine grammatical gender, can be u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Europe
Christendom historically refers to the Christian states, Christian-majority countries and the countries in which Christianity dominates, prevails,SeMerriam-Webster.com : dictionary, "Christendom"/ref> or is culturally or historically intertwined with. Following the spread of Christianity from the Levant to Europe and North Africa during the early Roman Empire, Christendom has been divided in the pre-existing Greek East and Latin West. Consequently, internal sects within Christian religion arose with their own beliefs and practices, centred around the cities of Rome (Western Christianity, whose community was called Western or Latin Christendom) and Constantinople (Eastern Christianity, whose community was called Eastern Christendom). From the 11th to 13th centuries, Latin Christendom rose to the central role of the Western world. The history of the Christian world spans about 1,700 years and includes a variety of socio-political developments, as well as advances in the arts, arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Social Hierarchy
Social stratification refers to a society's categorization of its people into groups based on Socioeconomic status, socioeconomic factors like wealth, income, Race (human categorization), race, education, ethnicity, gender, Job, occupation, social status, or derived Power (social and political), power (social and political). As such, stratification is the relative social position of persons within a social group, category, geographic region, or social unit. In modern Western world, Western societies, social stratification is typically defined in terms of three social classes: the upper class, the middle class, and the Working class, lower class; in turn, each class can be subdivided into the upper-stratum, the middle-stratum, and the lower stratum. Moreover, a social stratum can be formed upon the bases of kinship, clan, tribe, or caste, or all four. The categorization of people by social stratum occurs most clearly in complex State (polity), state-based, Polycentric law, polycen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estates Of The Realm
The estates of the realm, or three estates, were the broad orders of social hierarchy used in Christendom (Christian Europe) from the Middle Ages to early modern Europe. Different systems for dividing society members into estates developed and evolved over time. The best known system is the French ''Ancien Régime'' (Old Regime), a three-estate system which was made up of clergy (the First Estate), nobles (Second Estate), peasants and bourgeoisie (Third Estate). In some regions, notably Sweden and Russia, burghers (the urban merchant class) and rural commoners were split into separate estates, creating a four-estate system with rural commoners ranking the lowest as the Fourth Estate. In Norway the taxpaying classes were considered as one, and with a very little aristocracy, this class/estate were as powerful as the monarchy itself. In Denmark, however, only owners of large tracts of land had any influence. Furthermore, the non-landowning poor could be left outside the es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blacksmith
A blacksmith is a metalsmith who creates objects primarily from wrought iron or steel, but sometimes from #Other metals, other metals, by forging the metal, using tools to hammer, bend, and cut (cf. tinsmith). Blacksmiths produce objects such as gates, grilles, railings, light fixtures, furniture, sculpture, tools, agricultural implements, decorative and religious items, cooking utensils, and weapons. There was an historical distinction between the heavy work of the blacksmith and the more delicate operation of a whitesmith, who usually worked in Goldsmith, gold, Silversmith, silver, pewter, or the finishing steps of fine steel. The place where a blacksmith works is called variously a smithy, a forge or a blacksmith's shop. While there are many people who work with metal such as farriers, wheelwrights, and Armourer, armorers, in former times the blacksmith had a general knowledge of how to make and repair many things, from the most complex of weapons and armor to simple things ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxon
In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Textbook
A textbook is a book containing a comprehensive compilation of content in a branch of study with the intention of explaining it. Textbooks are produced to meet the needs of educators, usually at educational institutions. Schoolbooks are textbooks and other books used in schools. Today, many textbooks are published in both print and digital formats. History The history of textbooks dates back to ancient civilizations. For example, Ancient Greeks wrote educational texts. The modern textbook has its roots in the mass production made possible by the printing press. Johannes Gutenberg himself may have printed editions of ''Ars Minor'', a schoolbook on Latin grammar by Aelius Donatus. Early textbooks were used by tutors and teachers (e.g. alphabet books), as well as by individuals who taught themselves. The Greek philosopher Socrates lamented the loss of knowledge because the media of transmission were changing. Before the invention of the Greek alphabet 2,500 years ago, knowledge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scandinavia
Scandinavia; Sámi languages: /. ( ) is a subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, Norway, and Sweden. It can sometimes also refer more narrowly to the Scandinavian Peninsula (which excludes Denmark but includes part of Finland), or more broadly to include all of Finland, Iceland, and the Faroe Islands. The geography of the region is varied, from the Norwegian fjords in the west and Scandinavian mountains covering parts of Norway and Sweden, to the low and flat areas of Denmark in the south, as well as archipelagos and lakes in the east. Most of the population in the region live in the more temperate southern regions, with the northern parts having long, cold, winters. The region became notable during the Viking Age, when Scandinavian peoples participated in large scale raiding, conquest, colonization and trading mostly throughout Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
