1,721,161 research outputs found
Système d’Information Géographique et Volcanologie: Documentation des températures de Vulcano, Italie
No full textEtablissement d'un SIG pour mesurer l'évolution des températures des fumerolles de La Fossa, VulcanoPublishedDijon, Franceope
Système d’Information Géographique et Volcanologie: Documentation des températures de Vulcano, Italie
No full textEtablissement d'un SIG pour mesurer l'évolution des températures des fumerolles de La Fossa, VulcanoPublishedDijon, Franceope
Chromosome Centromeres: Structural and Analytical Investigations with High Resolution Scanning Electron Microscopy in Combination with Focused Ion Beam Milling
Full text linkWhole mount mitotic metaphase chromosomes of different plants and animals were investigated with high resolution field emission scanning electron microscopy (FESEM) to study the ultrastructural organization of centromeres, including metacentric, acrocentric, telocentric, and holocentric chromosome variants. It could be shown that, in general, primary constrictions have distinctive ultrastructural features characterized by parallel matrix fibrils and fewer smaller chromomeres. Exposure of these structures depends on cell cycle synchronization prior to chromosome isolation, chromosome size, and chromosome isolation technique. Chromosomes without primary constrictions, small chromosomes, and holocentric chromosomes do not exhibit distinct ultrastructural elements that could be directly correlated to centromere function. Putative spindle structures, although rarely observed, spread over the primary constriction to the bordering pericentric regions. Analytical FESEM techniques, including specific DNA staining with Pt blue, staining of protein as a substance class with silver-colloid, and artificial loosening of fixed chromosomes with proteinase K, were applied, showing that centromere variants and ultrastructural elements in the centromere differ in DNA and protein distribution. Immunogold localization allowed high-resolution comparison between chromosomes with different centromere orientations of the distribution of centromere-related histone variants, phosphorylated histone H3 (ser10), and CENH3. A novel application of FESEM combined with focused ion beam milling (FIB) provided new insights into the spatial distribution of these histone variants in barley chromosomes. Copyright (C) 2009 S. Karger AG, Base
Geographical Information System and Volcanology : Documentation of temperature measurements of the fumaroles at Vulcano island, Italy - a case study
No full textLa Fossa crater (Vulcano Island southern Italy) is a well documented volcano since its last eruption (1888 - 1890). Moreover, in the framework of the geochemical surveillance, systematic survey of fluids from fumaroles have been carried out at Vulcano since 1987. That's why we took it for our project. The purpose of the project is to create an internet resource which saves time to all researchers as it will publish available and future temperature measurements of fumaroles from La Fossa crater, Vulcano Island.PublishedTeneriffe, Canarian Islandsope
Geographical Information System and Volcanology : Documentation of temperature measurements of the fumaroles at Vulcano island, Italy - a case study
No full textLa Fossa crater (Vulcano Island southern Italy) is a well documented volcano since its last eruption (1888 - 1890). Moreover, in the framework of the geochemical surveillance, systematic survey of fluids from fumaroles have been carried out at Vulcano since 1987. That's why we took it for our project. The purpose of the project is to create an internet resource which saves time to all researchers as it will publish available and future temperature measurements of fumaroles from La Fossa crater, Vulcano Island.PublishedTeneriffe, Canarian Islandsope
The challenge of defining and investigating the causes of idiopathic short stature and finding an effective therapy
No full textIdiopathic short stature (ISS) comprises a wide range of conditions associated with short stature that elude the conventional diagnostic work-up and are often caused by still largely unknown genetic variants. In the last decade, the improvement of diagnostic techniques has led to the discovery of causal mutations in genes involved in the function of the growth hormone (GH)/insulin-like growth factor-I (IGF-I) axis as well as in growth plate physiology. However, many cases of ISS remain idiopathic. In the future, the more frequent identification of the underlying causes will allow a better stratification of subjects and offer a tailored management. GH therapy has been proposed and approved in some countries for the treatment of children with ISS. To improve the efficacy of GH therapy, trials with GH combined with GnRH agonists, aromatase inhibitors, and even IGF-I have been conducted. This review aims to revise the current definition of ISS and discuss the management of children with ISS on the basis of the most recent evidence
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
- …
