Thus the soil depth, acidity (pH) and soil moisture vary continuously along the slope. The example of this approach consists first in a … Collins Dictionary of Biology, 3rd ed. Mai 2019 um 01:22 Uhr bearbeitet. Diese Ringe können nicht voneinander getrennt werden, ohne mindestens eine kovalente Ringbindung eines macrocyclischen Ringes zu brechen. They are conceptually related to other mechanically interlocked molecular … catena. range noun. [3][4] A slope can be broken into sections known as a ridge, crest, midslope, and toeslope. The ridge or hilltop tends to accumulate organic matter that allows formation of an adequate thickness of soil. More meanings for catena. The concept of a catena was developed in order to analyze the regular variation of soils across a slope. Neben den Catenanen zählen Rotaxane und molekulare Knoten zur Gruppe der mechanisch verknüpften molekularen Architekt… Find more Latin words at wordhippo.com! Sometimes it happens that another name has the same meaning. catena translation in Latin-English dictionary. Conversely, on a shallower slope at the top or bottom of a catena, soils are thicker and deeper. Meaning of catena compound. How to use catena in a sentence. The importance of a catena is the variation of soils across a small area such as a slope. Nettleton, W.D., Flach, K.W., Borst, G., 1968. https://en.wikipedia.org/w/index.php?title=Catena_(soil)&oldid=993080474, Creative Commons Attribution-ShareAlike License, This page was last edited on 8 December 2020, at 18:03. A catenane is a mechanically-interlocked molecular architecture consisting of two or more interlocked macrocycles, i.e. The result is a predictable sequence of soil facets. The term catena (Latin: chain) was first coined by scientist Geoffrey Milne to describe these soil-topography units. Diese nicht-kovalenten Wechselwirkungen kompensieren die entropischen Nachteile des Assoziation und lenken die Edukte an günstige Plätze für die Bildung der gewünschten Catenane beim letzten Ringschluss. Interpretation Translation  catena. Para is not used in inorganic chemistry to the best of my knowledge. [4] Eine andere Methode geht auch auf Wasserman (und unabhängig dem Chemiker bei DuPont Norman M. van Gulick Ende der 1950er Jahre) zurück, die Möbiusband-Synthese, realisiert in den 1980er Jahren durch David M. Walba. ‘Since then catenas have been recognized in a variety of areas and under a variety of climatic conditions, an indication of the strength of the relationship between soil and topography.’. Please feel free to read what others say about this name and to share your comments if you have more information.. N.B. The catena concept originated in Central Uganda, by chemist W.S. Catena, im engeren Sinne Bodencatena; idealisierter Schnitt durch eine Bodenlandschaft zur Beschreibung der Raumstruktur einer Bodengesellschaft; Untersuchung an natürlichen Aufschlüssen, wie Gräben oder Böschungen oder in Sequenzen aus Bodenprofilen. ‘In general, these two closed chains are linked catenanes, and the type of linkage reflects a topological property of the original substrate.’ © … Allerdings ist diese Methode sehr ineffizient. In. 1972. Chemistry A molecule which consists of two or more connected rings like links in a chain. [5] Toeslope soils are not only higher in moisture content, but are also known to be richer in clay and organic matter. The term catena (Latin: chain) was first coined by scientist Geoffrey Milne to describe these soil-topography units. Catena, v.a. Read the latest articles of CATENA at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature Dieses Syntheseprinzip besitzt vorwiegend historische Bedeutung. a molecule containing two or more intertwined rings. Inflections of 'catena' (n noun: Refers to person, place, thing, quality, etc. Steeper slope or crest sections tend to be freely drained, while at the bottom of slopes or toeslopes there is usually higher in moisture content due to poor drainage. The term soil catena is used to describe the lateral variation in soils over a hillslope. Die zweite Methode beruht auf supramolekularer Präorganisation der makrocyclischen Vorläufer unter Ausnutzung von Wasserstoffbrückenbindungen, der Koordination von Metallen, hydrophoben Kräften oder Coulomb-Wechselwirkungen. nae [kuh-tee-nee],/kəˈti ni/, a chain or connected series, especially of extracts from the writings of the fathers of the Christian church. Bei der Durchführung einer Cyclisierungsreaktion kann man darauf hoffen, dass sich die Ringe vor dem zweiten und bei weiteren Cyclisierungen so anordnen, dass sich das gewünschte Catenan bildet. Definition of catena in the Definitions.net dictionary. [10] A catena is thus an open system which has continuous input and output processes. The catena concept originated in Central Uganda, by chemist W.S. Am. What does catena mean in Italian? catena - translate into English with the Italian-English Dictionary - Cambridge Dictionary Catenane sind in der Chemie Stoffe, die aus zwei oder mehr mechanisch (wie Glieder einer Kette) verknüpften Ringen – meist Makrocyclen – bestehen. [7], Catenas can also develop on low relief hillslopes, but because less potential energy is available the redistribution of mass can be dominated by subsurface flow of plasma, a combination of dissolved and suspended solids in soil water. 3 Brown, David J., Murray K. Clayton, and Kevin McSweeney, 2004. Catenae definition: a connected series, esp of patristic comments on the Bible | Meaning, pronunciation, translations and examples Catenas are found to be a great location for the study of soil science, given that the catena concept focuses on past history of the land surface, on hydrology, erosion, sediment transport, and pedogenic processes. Diese Ringe können nicht voneinander getrennt werden, ohne mindestens eine kovalente Ringbindung eines macrocyclischen Ringes zu brechen. Martin to describe a hill slope sequence at the Bukalasa research station. "Quantifying colloid mass redistribution in soils and other physical mass transfers". Y. Liu, S. A. Vignon, X. Zhang, P. A. Bonvallet, S. I. Khan. [10] On impermeable acid rocks such as metamorphic schists in a high rainfall climate like that of Western Scotland, the catena consists of thick acidic peat forming wet bog on the flatter facets, and thinner, drier, somewhat less acidic peaty podsols on the steeper facets. Catenane is derived from the Latin catena meaning "chain". Die Synthese von Catenanen mittels gerichteter kovalenter Bindungen (nach einem grundsätzlichen Konzept von Wasserman und Harry L. Frisch) erfolgte 1964 durch Lüttringhaus und Gottfried Schill. How to use catenate in a sentence. English words for catena include chain, fetters, chainlet, restraint, succession, cord, shackle, bond and series. Der erste experimentelle Nachweis der Synthese eines Catenans (wenn auch in geringer Ausbeute) erfolgte durch Edel Wasserman 1960,[2][3] damals an den Bell Laboratories. Die Glieder der Catena spiegeln die landschaftstypische, vorwiegend vom Relief bestimmte genetische und funktionale Verknüpfung der … "Potential terrain controls on soil color, texture contrast and grain-size deposition for the original catena landscape in Uganda". The nomenclature used for these systems involves placing the number of components involved in square brackets prior to the name of the molecule. Allenfalls bei hoher Verdünnung der Reaktionspartner bei der mechanischen Verknüpfung und einem großen Überschuss des zuvor gebildeten ersten makrocyclischen Rings, funktioniert dieses Verfahren leidlich. Hence, pyrophosphates were initially prepared by heating hydrogen phosphates to red glow. chain noun. What does catena compound mean? Verwandte Verbindungen in der organischen Chemie sind die Catenane. catena compound ( plural catena compounds ) ( chemistry) Any compound having two or more rings interconnected like the links of a chain, without a covalent bond. There is nothing surprising in this: both names have the same origin or the same numbers of numerology. English Translation. Translations in context of "catena" in Italian-English from Reverso Context: catena alimentare, catena di approvvigionamento, reazione a catena, catena di comando, catena di produzione [8][9][7], A catena forms when the climate, including precipitation and evaporation, is the same for the whole slope, and when sufficient time has passed for equilibrium to be reached between the processes that bring materials in to a facet and the processes that take materials away. [1] Ernsthafte Versuche der Synthese setzten in den 1950er Jahren ein (unter anderem Arthur Lüttringhaus und Friedrich Cramer, zunächst erfolglos). Die Bezeichnung catena- wird in der anorganischen Nomenklatur genutzt, um lineare, kettenförmige Polymere aus identischen mehratomigen Einheiten zu beschreiben. Sauvage erhielt unter anderem dafür 2016 den Nobelpreis für Chemie. Für die Synthese von Catenanen gibt es zwei unterschiedliche Methoden. Soc., Band 82, 1960, S. 4433–4434, Edel Wasserman: Chemical Topology, Scientific American, November 1962, Lüttringhaus, Schill, Gezielte Synthese von Catena‐Verbindungen (1), Angewandte Chemie, Band 76, 1964, S. 567–568. f [CHIM] (di un polimero) chain (of a polymer) Dizionario chimica Italiano-Inglese. In addition, the top facets lose materials such as mineral salts when these are washed out by rain (eluviation), while the bottom facets gain materials when these are washed in (illuviation).[10][11]. Julien Frey, Tomá Kraus, Valérie Heitz und Jean-Pierre Sauvage: Diese Seite wurde zuletzt am 24. Catenation, chemical linkage into chains of atoms of the same element, occurring only among the atoms of an element that has a valence of at least two and that forms relatively strong bonds with itself. Thus, compound (a) in Figure 9 is a [2]catenane. Die Bezeichnung Catenane geht zurück auf das lateinische Wort catena mit der Bedeutung Kette. In: Birkle, P., Torres-Alvarado, I.S. Catenane sind in der Chemie Stoffe, die aus zwei oder mehr mechanisch (wie Glieder einer Kette) verknüpften Ringen meist Makrocyclen bestehen. concatenamento. Neben den Catenanen zählen Rotaxane und molekulare Knoten zur Gruppe der mechanisch verknüpften molekularen Architekturen. The example of this approach consists first in a structural component, the recurring pattern of certain soils in a landscape transects in which every chain element has its place in the chain, a soil has it in a landscape. [3], Lithology and relief can be the primary controls on the development of certain catenas[6] with easily disaggregated parent rock and high relief favoring particle redistribution and therefore the formation of distinct soils in particle-source and particle-deposition zones along a slope. What does catena mean? nae | , | , | [1] ''Grundbedeutung'' die Fessel, die Kette | [2] ''metaphorisch'' das Band, die Fessel | [1] | [1, 2] , Seite 79, Eintrag „catena“ | [1, 2] | cadenas, c [..] Quelle: de.wiktionary.org: 2: 0 0. catena. Bern, C.R., Chadwick, O.A., 2010. A catena in soil science (pedology) is a series of distinct but co-evolving soils arrayed down a slope. Die Bezeichnung Catenane geht zurück auf das lateinische Wort catena mit der Bedeutung „Kette“. Definition of catena compound in the Definitions.net dictionary. Information and translations of catena compound in the most comprehensive dictionary definitions resource on the web. Catena Rhyming, similar names and popularity. Understanding the soils that make up a catena could facilitate the mapping of soils across a given region. Das Olympiadan hat keinen expliziten Zweck, sondern ist lediglich ein Beitrag zur Grundlagenforschung, die Synthese sollte die Machbarkeit solcher Synthesen untersuchen.[6]. A catena can form on various underlying or parent materials and in different climates. (Chemistry) a type of chemical compound in which the molecules have two or more rings that are interlocked like the links of a chain Conacher, A.J., Dalrymple, J.B., 1977. Pyro, meaning fire in Greek, is a prefix for something that has to do with being burnt in some way. Catena definition is - a connected series of related things. Catena name meaning, Australian baby Girl name Catena meaning,etymology, history, presonality details. On a steeper slope in the middle of a catena, erosion, such as by runoff, is faster, so facets are typically thinner and drier. Potremo risolvere tutto quello che è ancora rimasto in sospeso in materia di verificabilità della produzione alimentare, dell’approccio alla catena completa, o in altri termini dell’approccio . catena. Martin[2] to describe a hill slope sequence at the Bukalasa research station. It aims to disseminate new knowledge and foster better understanding of the physical environment, of evolutionary sequences that have resulted in past and current landscapes, … Chem. The interlocked rings cannot be separated without breaking the covalent bonds of the macrocycles. "Chemical transfers along slowly eroding catenas developed on granitic cratons in southern Africa". Die Synthese von Catenanen gelang aber lange nur in geringen Ausbeuten und komplizierten Syntheseschritten, bis die Templatmethode mit Metallkomplexen von Jean-Pierre Sauvage von 1983[5] das Gebiet revolutionierte. A mature catena is in equilibrium as the processes of deposition and erosion are in balance. ): npl plural noun: Noun always used in plural form--for example, "jeans," "scissors. [1] Each soil type or "facet" differs somewhat from its neighbours, but all occur in the same climate and on the same underlying parent material. Dies ist der so genannte „statistische Ansatz“ der zur ersten Synthese eines Catenans führte. The concept of a catena was developed in order to analyze the regular variation of soils across a slope. Catenanes, from the Latin word catena, meaning chain, are molecules containing two or more interlocked rings that are inseparable unless a covalent bond is broken. Catenate definition is - to connect in a series : link. Information and translations of catena in the most comprehensive … The DNA is catenated. Er führte auch den Begriff Catenane ein. David B. Amabilino, Peter R. Ashton, Anatoli S. Reder, Neil Spencer, J. Fraser Stoddart: 10.1002/1521-3897(200006)342:5<437::AID-PRAC437>3.0.CO;2-7, https://de.wikipedia.org/w/index.php?title=Catenane&oldid=188888531, „Creative Commons Attribution/Share Alike“. Ab Anfang der 1990er Jahre synthetisierte er n-Catenane (mit n=2 bis 7 Ringen). 1 technical A connected series or chain. Catena publishes papers describing original field and laboratory investigations and reviews on geoecology and landscape evolution with emphasis on interdisciplinary aspects of soil science, hydrology and geomorphology. Many fields of study are taken into consideration when studying catenas, studying catenas could help to understand the influence of soil hydrology on soil formation. Die Idee der Synthese verzahnter Moleküle wird meist Richard Willstätter in einem Seminar in Zürich zwischen 1906 und 1912 zugeschrieben. (Eds.). "Lateral podzolization in a granite landscape". More example sentences. Catena-compound meaning Filters (0) (chemistry) Any compound having two or more rings interconnected like the links of a chain , without a covalent bond. The property is predominant among carbon atoms, significant among sulfur and silicon atoms, and "The soil catena: a systematic approach". Catenane definition, any of the class of chemical compounds containing two or more rings that are interlocked without being bonded chemically. en The altered times soon restored him to liberty. "The nine unit landsurface model and pedogeomorphic research". Bodenprofile, geomorphologische Formen) beschreibt.Ursprünglich in der Bodenkunde entwickelt, stellt das Catena-Prinzip z.B. Lesogo Khomo, Carleton R. Bern, Anthony S. Hartshorn, Kevin H. Rogers, Oliver A. Chadwick, 2013. Ein Beispiel hierfür sind die Catenatriphosphazene. [10][11] On a permeable basic rock such as chalk, the catena may consist of thick brown earths on the flatter facets, with thin rendzinas on the steeper slopes, while the valley bottom may include alkaline fen peat or river alluvium. See more. Meaning of catena. Young, A. Guzmán Gil‐Ramírez, David A. Leigh, Alexander J. Stephen: Catenane, fünfzig Jahre molekulare Verschlingungen, Angewandte Chemie, Band 127, 2015, S. 6208–6249, E. Wasserman, J. (from Latin catena, chain) an arrangement of two or more circular DNA molecules interlocked like links on a chain. catena. Im Jahre 1994 gelang den Forschern James Fraser Stoddart und David Amabilino und ihren Forschungsgruppen die Synthese eines [5]-Catenans, dass sie Olympiadane (deutsch Olympiadan) nannten, in Anlehnung an die fünf olympischen Ringe. Dieser „templatgesteuerte“ Ansatz, kann mit der simultanen Anwendung hohen Drucks, in Ausbeuten von über 90 % zu Catenanen führen. in der Bodenkunde, Bodengeographie und Geomorphologie gebrauchter Begriff, der, in Abhängigkeit von sich ändernden Reliefbedingungen, die kausale Verkettung der Entwicklung von einzelnen Catena-Elementen (z.B. ": catenae Sommer, M., Halm, D., Weller, U., Zarei, M., Stahr, K., 2000. We will be able to tie up all the loose ends with regard to the issue of the verifiability of food production, the integral chain approach, or in other words the stable-to-table approach. chain. 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