Search results for "rection"
showing 10 items of 965 documents
Ocean acidification at a coastal CO2 vent induces expression of stress-related transcripts and transposable elements in the sea anemone Anemonia viri…
2019
Notice of republication An incomplete, earlier version of this article was published in error. The publisher apologizes for the error. This article was republished on May 21, 2019 to correct for this error. Please download the article again to view the correct version. The originally published, uncorrected article and the republished, corrected article are provided here for reference. Supporting information S1 File. Originally published, uncorrected article. (PDF) S2 File. Republished, corrected article. (PDF)1 Ocean acidification threatens to disrupt interactions between organisms throughout marine ecosystems. The diversity of reef-building organisms decreases as seawater CO2 increases alo…
Turbidez y profundidad de disco de Secchi con Sentinel-2 en embalses con diferente estado trófico en la Comunidad Valenciana
2019
[ES] En los estudios de calidad de aguas por teledetección, uno de los principales indicadores es la transparencia o turbidez del agua. La transparencia puede ser medida in situ mediante la profundidad del disco de Secchi (SD), y la turbidez con un turbidímetro. En las últimas décadas se han utilizado diferentes relaciones entre bandas de diferentes sensores obtenidas por teledetección para la estimación de estos parámetros. En este trabajo, a partir de datos de campo obtenidos a lo largo de 2017 y 2018 en embalses de la cuenca del Júcar con gran variedad de estados tróficos, se han calibrado diferentes índices y bandas para poder estimar la transparencia a partir de imágenes Sentinel-2 (S2…
Identifying gene-environment interactions in schizophrenia: contemporary challenges for integrated, large-scale investigations
2014
European Community Recent years have seen considerable progress in epidemiological and molecular genetic research into environmental and genetic factors in schizophrenia, but methodological uncertainties remain with regard to validating environmental exposures, and the population risk conferred by individual molecular genetic variants is small. There are now also a limited number of studies that have investigated molecular genetic candidate gene-environment interactions (G x E), however, so far, thorough replication of findings is rare and G x E research still faces several conceptual and methodological challenges. in this article, we aim to review these recent developments and illustrate h…
Micromechanisms of load transfer in a unidirectional carbon fibre-reinforced epoxy composite due to fibre failures: Part 3. Multiscale reconstruction…
2008
International audience; This third article describes a multiscale process which takes into account the most important microscopic phenomena associated with composite degradation, including fibre fractures and interfacial debonding, overloading of fibres neighbouring a fibre break as well as viscoelastic behaviour of the matrix. The results have been used to accurately predict the macroscopic failure of unidirectional carbon fibre-reinforced epoxy and quantify damage accumulation in pressure vessels made of the same material. The approach described has allowed the acoustic emission activity resulting from fibres breaks to be evaluated and shown how the residual lifetimes of such vessels, whe…
Evaluation of the effects of different groove length and thickness of the retainers on the retention of maxillary anterior base metal resin bonded re…
2012
Objectives: The resin-bonded fixed partial dentures have gained immense popularity in recent years as they are more conservative, esthetic, economic and easily fabricated. However debonding is considered the most common cause of failure of resin bonded prosthesis. The objective of the study were to compare the effects of different groove lengths and thickness of retainers on retention of maxillary anterior base metal resin bonded retainers. Study Design: Twenty five metal dies of maxillary central incisor duplicated from pure typhodont teeth (maxillary left central incisors) prepared to receive retainer for resin bonded fixed partial denture having different test designs were made. Five tes…
Hiperkompetitivitātes ietekme uz stratēģisko plānošanu mūsdienu biznesa vidē; Patēriņa elektronikas mazumtirdzniecības nozares analīze
2018
Pārbaudes pamatojums izriet no pētnieku argumentiem, ka efektīva un efektīva uzņēmējdarbības stratēģija ir būtisks instruments, ko organizācijas izmanto, lai novirzītu uzņēmējdarbību no arvien mainīgās uzņēmējdarbības vides un reģistrētu pastāvīgu uzlabotu veiktspēju. No šīs pieejas tiek piedāvāts konceptuālais satvars uzņēmējdarbības vides un hiperkonkurētspējas attiecināšanai uz uzņēmumu izmantotajām stratēģijām, kāda ietekme tas ir uz stratēģisko plānošanu. Promocijas darba mērķis ir analizēt hiperkonkurences vides spiediena stratēģiskās plānošanas darbību un atrast problēmas, kas varētu rasties nākotnē. Lai atrastu atbildi uz galveno darba tēmu: analizēt stratēģiskās plānošanas rīcību h…
Uzņēmuma SIA "GELVORA" stratēģiskās attīstības virzieni.
2016
Bakalaura darba tēma ir uzņēmuma SIA „Gelvora” stratēģiskās attīstības virzieni. Darba izvirzītā problēma ir stratēģiskās attīstības plānošanas trūkums uzņēmumā SIA “Gelvora”. Bakalaura darba mērķis ir, veicot uzņēmuma stratēģiskās attīstības analīzi, noteikt attīstības virzienu ārpustiesas parādu piedziņas uzņēmumam SIA „Gelvora” un uz tā pamata izstrādāt priekšlikumus tālākai uzņēmuma attīstībai. Bakalaura darbā tika veikta SIA „Gelvora” darbības analīze piecu gadu griezumā, sākot ar 2011. gadu. Pētījums parāda, ka uzņēmums ierindojas līderu grupā un ir konkurētspējīgs savā nozarē, taču, lai uzņēmums varētu uzlabot savus darbības rādītājus, tam ir nepieciešams pieņemt lēmumu par stratēģis…
Simulation investigations of the position of Fatigue Fracture Plane in materials with biaxial loads
1989
In the paper three methods of determination of the expected fatigue fracture plane position under random triaxial stress state have been presented. They are: weight function method, variance method and damage cumulation method. The weight function method for biaxial cyclic loadings has been analysed with digital simulation. The fatigue fracture plane position has been determined with mean values of the direction cosines of principal stress axes. Averaging has been done at angle values with use of weights. Eleven various weights have been presented and their usability has been analysed on the basis of experimental results obtained by Rotvel, and Nishihara-Kawamoto. The weights with good agre…
A method of desingularization for analytic two-dimensional vector field families
1991
It is well known that isolated singularities of two dimensional analytic vector fields can be desingularized: after a finite number of blowing up operations we obtain a vector field that exhibits only elementary singularities. In the present paper we introduce a similar method to simplify the periodic limit sets of analytic families of vector fields. Although the method is applied here only to reduce to families in which the zero set has codimension at least two, we conjecture that it can be used in general. This is related to the famouss Hibert's problem about planar vector fields.
LST retrieval algorithm adapted to the Amazon evergreen forests using MODIS data
2018
Abstract Amazonian tropical forests play a significant role in global water, carbon and energy cycles. Considering the importance of this biome and climate change projections, the monitoring of vegetation status of these rainforests becomes of significant importance. In this context vegetation temperature is presented as a key variable linked with plant physiology. In particular some studies showed the relationship between this variable and the CO2 absorption capacity and biomass loss of these tropical forests proving the potential use of vegetation temperature in the monitoring of the vegetation status. Nevertheless, the use of thermal remote sensing data over tropical forests still has so…