Part of a Book
174 search hits
-
Keeping track of worm trackers
(2012)
-
Steven J. Husson
Wagner Steuer Costa
Cornelia Schmitt
Alexander Gottschalk
- C. elegans is used extensively as a model system in the neurosciences due to its well defined nervous system. However, the seeming simplicity of this nervous system in anatomical structure and neuronal connectivity, at least compared to higher animals, underlies a rich diversity of behaviors. The usefulness of the worm in genome-wide mutagenesis or RNAi screens, where thousands of strains are assessed for phenotype, emphasizes the need for computational methods for automated parameterization of generated behaviors. In addition, behaviors can be modulated upon external cues like temperature, O2 and CO2 concentrations, mechanosensory and chemosensory inputs. Different machine vision tools have been developed to aid researchers in their efforts to inventory and characterize defined behavioral “outputs”. Here we aim at providing an overview of different worm-tracking packages or video analysis tools designed to quantify different aspects of locomotion such as the occurrence of directional changes (turns, omega bends), curvature of the sinusoidal shape (amplitude, body bend angles) and velocity (speed, backward or forward movement).
-
The clinical examination of children, adolescents and their families
(2012)
-
Thomas Jakob Lempp
Daleen de Lange
Daniel Matthias Radeloff
Christian Bachmann
-
Arthur in the Tristan Tradition
(2000)
-
Volker Mertens
- The bringing together of the two realms, that of Tristan and Isolde and that of Arthur, thus has a mutually corrosive effect. However, in the further course of the action Tristan and Isolde’s love regains some of its absoluteness: for instance Heinrich refrains from taking over the quarrel of lovers from Eilhart. He plays a double game, on the one hand reducing the absoluteness and self-sufficiency of love, on the other hand building it up again and thus preventing the establishment of a firm doctrine in the course of the narrative (…), as neither the Arthurian court nor the love of Tristan and Isolde provides an absolute norm. Heinrich wrote his romance for the Bohemian noble Raimund von Lichtenburg, and the account of the foundation of the Round Table and the self-directed activities of the knights have belonged (…). The initial Arthurian ideal has become a confirmatory ritual for an exclusive body of noblemen – that matches the spirit of the knightly societies.
-
News : 2012 / Center for Financial Studies
(2012)
-
15 Jahre "Koloniales Bildarchiv" an der Stadt- und Universitätsbibliothek Frankfurt am Main : eine Bestandsaufnahme
(2004)
-
Uwe Ulrich Jäschke
- Im Zeitalter von Internet und digitaler Wissensvermittlung hat auch die Geschichtswissenschaft die Photographie als Quellenmaterial zur Dokumentation historischer Lebensbedingungen und Ereignisse schätzen gelernt. Neben dem geisteswissenschaftlichen Aspekt solcher Photodokumente gibt es einen technisch-konservatorischen Aspekt.
-
Patriarchat, Patriarchalismus : I. 17. und 18. Jahrhundert
(1989)
-
Klaus Lichtblau
-
The Protestant Ethic versus the "New Ethic"
(1993)
-
Klaus Lichtblau
-
Masakwa dry season cropping in the Chad Basin
(1996)
-
Barbara Zach
Holger Kirscht
Doris Löhr
Katharina Neumann
Editha Platte
- In the inundation area - the basin of the former larger Lake Chad - a special type of sorghum is grown on the clay soils (firgi). This dry-season guinea corn is also called dwarf sorghum or masakwa. In Kanuri, the dominant language in the region, sorghum is called ngawuli. The dry-season types are called ngawuli firgibe (lit. translated: sorghum of the firgi). During the dry season when the natural vegetation becomes dry and yellow, masakwa fields appear in prominent green covering large areas of the clay plains. The most important natural factor for this specialized dry season cropping is the presence of soils with a high clay content. For a better understanding of masakwa and its related issues, a multidisciplinary sub-project (G1) has been established within the SFB 268 (Joint Research Project: History of Culture and Language in the Natural Environment of the West-African Savannah). This project in which all disciplines participate is entitled: "Natural basis for masakwa cultivation and its meaning for the settlement history of the clay plains (firgi) in the Chad basin".
-
Sacrifice and business : a comparative study of ritual and commercial cattle slaughtering in Tenkodogo, Burkina Faso
(1994)
-
Hans Zimmermann
- All over the world meat plays an important role in the nutrition of people. Mostly it is considered to be a special source of strength and health. In many peoples' minds the consumption of animal products, such as muscle, fat, blood, inner organs and bones, is much more associated with vital strength than a vegetarian meal. A reason for this may be the inherent physical similarity between human being and animal, especially mammals. There are other ways of producing meat, such as hunting and fishing, but today the most common method is butchering. The people in Tenkodogo consider beef to be an excellent meat. We will focus our comparative studies on special occasions, specialised butchers, locations, times, technical methods, distribution and ideas connected with the production and consumption of beef. Two fundamental reasons for the butchering of cattle can be identified: firstly, bulls are killed during the rituals of the year and secondly, cattle is slaughtered for daily commercial purposes on the market. In both cases almost the entire carcass of the butchered animal is consumed by people. In Tenkodogo we can actually compare those two different reasons, which have at least one common impact.
-
From Megachad to Microchad - environmental changes during the Holocene
(2000)
-
Heinrich Thiemeyer
- The investigations carried out within the project in NE-Nigeria since 1989 have been focussing on the late Pleistocene and Holocene landscape development of the south eastern Chad basin. Areas of interest include palaeodune fields, clay plains and former beach ridge systems of Lake Chad. Transgressions and regressions of Lake Chad played an important role in the younger landscape history of NE-Nigeria and have also caused great environmental changes. The term „Megachad“ is well known and describes an enormous lake with an extension comparable with the Caspian Sea of today. The term „Microchad“ stands for the other recent extreme in terms of the lake dimensions varying during the times. Environmental changes in the surroundings of Lake Chad are closely connected with transgressions and regressions of the lake. These lake level changes can be climatically induced as well as non-climatically, due to human impact. Nearly all land units have more or less been influenced by the lake, spatially as well as temporally. It is important, though, to notice the scales of the changes. Some changes took place in a millennial scale, some in the scales of centuries or decades, and at least – as can be observed every year – in a seasonal scale.
