Search results for " variability"
showing 10 items of 853 documents
Diferències entre sexes en la resposta cardiovascular, hormonal i psicològica a una competició: Variables moduladores i facilitadors de la victòria
2018
Competition is a social interaction where there is a confrontation between individuals or groups to achieve an objective. In our society competition is present transversally, with consequences for individuals. Therefore, competition is considered a social stressor able to elicit important psychobiological responses. From an evolutionary perspective, it has been suggested that, against stress situations, men would be more likely to fight-and-flight, while women would be more likely to tend-and-befriend strategies. Consequently, different psychobiological response to competition can be described depending on sex. A large proportion of studies on competition were based on the biosocial status …
Attuning to a changing ocean
2020
The ocean is a lifeline for human existence, but current practices risk severely undermining ocean sustainability. Present and future social−ecological challenges necessitate the maintenance and development of knowledge and action by stimulating collaboration among scientists and between science, policy, and practice. Here we explore not only how such collaborations have developed in the Nordic countries and adjacent seas but also how knowledge from these regions contributes to an understanding of how to obtain a sustainable ocean. Our collective experience may be summarized in three points: 1) In the absence of long-term observations, decision-making is subject to high risk arising from na…
VDR MUTATION IN TWO SISTERS: PHENOTYPE VARIABILITY AND CLINICAL OUTCOME
2017
Objectives: Hereditary vitamin D-resistant rickets (HVDRR) is an autosomal recessive disease secondary to the mutation of vitamin D receptor (VDR) gene. These children show an early onset of rickets and in some of them alopecia is associated. Methods: We describe clinical features and laboratory findings in two sisters affected by HVDRR, as well as their response to treatment. Results: The first born is now 4 years old and had a severe and resistant hypocalcaemia, with low response to high doses of calcium per os, the requirement of intravenous infusion of calcium for a prolonged period, hypocalcaemic seizures resolved with high doses of intravenous calcium and high doses of vitamin D. Clin…
Darbinieku mainība un aiziešanas iemesli uzņēmumā SIA Malves.
2020
Dažādu nozaru uzņēmumos, aktuāla problēma ir darbinieku mainība, kas apdraud uzņēmuma veiksmīgu darbību. Augsta personāla mainība var negatīvi ietekmēt uzņēmuma darbību, iekšējo vidi, kā arī palielināt izmaksas, jo pieņemot darbā jaunus darbiniekus, tiek ieguldīti resursi, lai darbinieks tiktu apmācīts un ievadīts darba procesā. Bakalaura darba mērķis ir izpētīt darbinieku mainības un aizmiešanas iemeslus uzņēmumā SIA Malves, lai rastu risinājumus un priekšlikumus to mazināšanai. Bakalaura darba teorētiskajā daļā tika apskatīta darbinieku mainības problēma, tās ietekmējošie faktori. Bakalaura darba pētnieciskajā daļā tika veikts pētījums , kura laikā tika noskaidrots, ka darbinieki nav apmi…
Respuesta cardiovascular al estrés en pacientes con epilepsia farmacorresistente: datos preliminares
2021
El estrés es un factor de riesgo para las enfermedades cardiovasculares en la población general. La epilepsia se ha considerado un modelo adecuado de estrés crónico, con mayor incidencia de mortalidad cardiovascular que la población general. Este estudio proporciona datos preliminares sobre la respuesta cardiovascular ante un estresor cognitivo y una evaluación neuropsicológica en pacientes con epilepsia, explorando las relaciones entre la respuesta cardiovascular y el rendimiento cognitivo dependiendo del hemisferio responsable de la epilepsia. Treinta y cinco pacientes con epilepsia farmacorresistente, 17 con el área epileptógena(AE) en el hemisferio izquierdo (LH) y 18 con AE en el hemis…
Detección de estrés hídrico en olivar mediante datos hiperespectrales y térmicos del sensor AHS
2005
En: XI Congreso Nacional de Teledetección, Teledetección, Avances en la Observación de la Tierra, M. Arbelo, A. González, J.C. Pérez (Eds.), pág.: 53-56, Tenerife, 21-23/9/2005.
Genetic diversity and population structure of Sicilian sheep breeds using microsatellite markers
2012
Abstract Genetic diversity studies in domestic animals aim at evaluating genetic variation within and across breeds mainly for conservation purposes. In Sicily, dairy sheep production represents an important resource for hilly and mountain areas economy. Their milk is used for the production of traditional raw milk cheeses, sometimes protected designation of origin (PDO) cheeses. In some cases, the quality of these products is linked to a specific breed, i.e. mono-breed labelled cheeses and it is therefore important to be able to distinguish the milk of a breed from that of others, in order to guarantee both the consumer and the breed itself. In order to investigate the genetic structure an…
Environment may be the source of Flavobacterium columnare outbreaks at fish farms
2012
Summary Flavobacterium columnare, causing columnaris disease, was isolated for the first time from free water and biofilms in the environment outside fish farms. Fourteen isolates were found from Central Finland from a river by a water intake of a salmonid farm and 400 m upstream of the farm. One isolate was from a lake not under the influence of any fish farming. The bacterium could not be isolated from five other lakes in Central Finland or from three lakes in Eastern Finland, none of them in use for fish farming. Among the environmental isolates there was both genetic variability and difference in virulence, but the isolates were less virulent than the isolates originating from a disease…
Ecological, morphological and genetic characterization of sympatric Haemonchus spp. parasites of domestic ruminants in Mauritania
1995
SUMMARYThe 4 species of ruminants (dromedary, zebu cattle, sheep and goat) in arid areas of Mauritania harboured Haemonchus spp. as the most frequent internal parasite. This was a rare situation where the 3 putative species, H. longistipes (dromedary), H. placet (zebu cattle) and H. contortus (sheep and goat) occurred sympatrically. The study was undertaken on hosts slaughtered at the Nouakchott abattoir, on the basis of monthly collection of worms. The environment was very unfavourable to H. placei and unfavourable to H. contortus, as intensity of infection remained low throughout the year, whereas infection in the dromedary was 10 to 20-fold higher. The survival strategies during the long…
In-Depth Characterization of Viral Isolates from Plasma and Cells Compared with Plasma Circulating Quasispecies in Early HIV-1 Infection
2012
Background The use of in vitro models to unravel the phenotypic characteristics of circulating viral variants is key to understanding HIV-1 pathogenesis but limited by the availability of primary viral isolates from biological samples. However, overall in vivo genetic variability of HIV-1 within a subject may not be reflected in the viable viral population obtained after isolation. Although several studies have tried to determine whether viral populations expanded in vitro are representative of in vivo findings, the answer remains unclear due to the reduced number of clonal sequences analyzed or samples compared. In order to overcome previous experimental limitations, here we applied Deep P…