Search results for "COD"

Lyapunov graphs for circle valued functions

2018

International audience; Conley index theory is used to obtain results for flows associated to circular Lyapunov functions defined on general compact smooth n-manifolds. This is done in terms of their underlying circular Lyapunov digraphs, which are generalizations of Morse digraphs, by extensively studying their combinatorics, invariants and realizability.

Analysis of the OSU-MASLWR Natural circulation phenomena using TRACE code

2009

TRACE, RELAP5 Mod 3.3, and RELAP5-3D Code Comparison of OSU-MASLWR-001 Test

2009

Start-up of a submerged membrane bioreactor with complete sludge retention

2005

Exposing the structure of an Arctic food web

2015

15 pages; International audience; How food webs are structured has major implications for their stability and dynamics. While poorly studied to date, arctic food webs are commonly assumed to be simple in structure, with few links per species. If this is the case, then different parts of the web may be weakly connected to each other, with populations and species united by only a low number of links. We provide the first highly resolved description of trophic link structure for a large part of a high-arctic food web. For this purpose, we apply a combination of recent techniques to describing the links between three predator guilds (insectivorous birds, spiders, and lepidopteran parasitoids) a…

Mutation profile of the MYO7A gene in Spanish patients with Usher syndrome type I.

2006

Usher syndrome type I is the most severe form of Usher syndrome. It is an autosomal recessive disorder characterized by profound congenital sensorineural deafness, retinitis pigmentosa, and vestibular abnormalities. Mutations in the myosin VIIA gene (MYO7A) are responsible for Usher syndrome type 1B (USH1B). This gene is thought to bear greatest responsibility for USH1 and, depending on the study, has been reported to account for between 24% and 59% of USH1 cases. In this report a mutation screening of the MYO7A gene was carried out in a series of 48 unrelated USH1 families using single strand conformation polymorphism analysis (SSCP) and direct sequencing of those fragments showed an abnor…

Complete cDNA sequence coding for the MHC class II RT1.B alpha chain of the Lewis rat.

1989

Health status of immigrants arrived to Italian coast [Stato di salute degli immigrati approdati sulle coste italiane ]

2014

OBJECTIVE: To analyze the factors involved in access to Emergency Department (ED) of undocumented immigrants in Lampedusa according to the country of origin. DESIGN: This is a retrospective observational study, carried out on newly arrived undocumented immigrants transferred to ED. SETTING AND PARTICIPANTS: Data were collected from medical records of Lampedusa ED between January 2012 and May 2013 on 326 undocumented immigrants. MAIN OUTCOME MEASURES: The outcomes evaluated are demographics characteristics and health condition of undocumented immigrants. RESULTS: In multivariate analysis associated factors to ED visits are: other pathologies rather than traumatic diseases (OR 0.22; p <0.0…

Detection of a synthetic sex steroid in the American crocodile (Crocodylus acutus): Evidence for a novel environmental androgen

2017

Endocrine-disrupting contaminants (EDC's) are well known to alter sexual differentiation among vertebrates via estrogenic effects during development, particularly in organisms characterized by temperature-dependent sex determination. However, substances producing androgenic effects typically lack potency when tested in laboratory settings and are virtually unstudied in field settings. Here, we assay levels of a synthetic androgen, 17a-methyltestosterone (MT), in a heavily male-biased population of American crocodiles in the Tempisque River Basin of Costa Rica based on the recent hypothesis that this chemical is an EDC in developing crocodilian embryos. The presence of MT was documented in a…

Inferring genetic connectivity in real populations, exemplified by coastal and oceanic atlantic cod

2018

Significance Estimates of migration are important for understanding the dynamics of natural populations. A statistic known as FST is often used to measure levels of genetic differentiation among natural populations. Equations that translate FST into estimates of migration are based on “ideal” populations, which are subject to many simplifying assumptions compared with real populations. Therefore, theoretical estimates of migration might not be realistic. We modeled populations of Atlantic cod in the North Sea and the adjacent Skagerrak region to compare how migration is related to the complexities of real populations, and how actual migration compares with predictions based on theory. Resul…