Search results for "ABO"

Heterozygote advantage and pleiotropy contribute to intraspecific color trait variability

2022

The persistence of intrapopulation phenotypic variation typically requires some form of balancing selection because drift and directional selection eventually erode genetic variation. Heterozygote advantage remains a classic explanation for the maintenance of genetic variation in the face of selection. However, examples of heterozygote advantage, other than those associated with disease resistance, are rather uncommon. Across most of its distribution, males of the aposematic moth Arctia plantaginis have two hindwing phenotypes determined by a heritable one locus-two allele polymorphism (genotypes: WW/Wy = white morph, yy = yellow morph). Using genotyped moths, we show that the presence of o…

MARKERS OF INFLAMMATION AND PREVALENCE OF VASCULAR DISEASE IN PATIENTS WITH METABOLIC SYNDROME

2007

AIM: The aim of this study was to determine the prevalence of carotid atherosclerosis and coronary heart disease and cerebrovascular disease in subjects with metabolic syndrome and to investigate the relationship between atherosclerosis and C-reactive protein (CRP) levels. METHODS: We studied 568 ambulatory subjects, referred to our Center for the study of atherosclerosis and cardiovascular prevention by general practitioner, for the presence of traditional cardiovascular risk factors. Subjects were divided in two groups: those with metabolic syndrome (n=163), and those with 0-2 metabolic abnormalities (n=405). All subjects underwent carotid artery ultrasound and blood tests including high …

Prediction of vascular events in subjects with subclinical atherosclerosis and the metabolic syndrome: the role of markers of inflammation.

2010

The role of lipid metabolism in the acquisition of desiccation tolerance inCraterostigma plantagineum: a comparative approach

2013

Summary Dehydration leads to different physiological and biochemical responses in plants. We analysed the lipid composition and the expression of genes involved in lipid biosynthesis in the desiccation-tolerant plant Craterostigma plantagineum. A comparative approach was carried out with Lindernia brevidens (desiccation tolerant) and two desiccation-sensitive species, Lindernia subracemosa and Arabidopsis thaliana. In C. plantagineum the total lipid content remained constant while the lipid composition underwent major changes during desiccation. The most prominent change was the removal of monogalactosyldiacylglycerol (MGDG) from the thylakoids. Analysis of molecular species composition rev…

Inferring Phytoplankton, Terrestrial Plant and Bacteria Bulk δ¹³C Values from Compound Specific Analyses of Lipids and Fatty Acids.

2015

Stable isotope mixing models in aquatic ecology require δ13C values for food web end members such as phytoplankton and bacteria, however it is rarely possible to measure these directly. Hence there is a critical need for improved methods for estimating the δ13C ratios of phytoplankton, bacteria and terrestrial detritus from within mixed seston. We determined the δ13C values of lipids, phospholipids and biomarker fatty acids and used these to calculate isotopic differences compared to the whole-cell δ13C values for eight phytoplankton classes, five bacterial taxa, and three types of terrestrial organic matter (two trees and one grass). The lipid content was higher amongst the phytoplankton (…

Velosipēdistu riskantas braukšanas saistība ar naivajiem priekšstatiem par fizikas likumiem

2016

Maģistra darba mērķis ir noskaidrot, vai velosipēdistu riskanta braukšana ir saistīta ar naivajiem priekšstatiem par fizikas likumiem. Pētījumā piedalījās 123 respondenti vecumā no 17 līdz 57 gadiem. Pētījumā tika izmantotas metodikas: Velosipēdistu uzvedības aptauja, modificēta, par pamatu ņemot Finstras un kolēģu (Feenstra et al. ,2011) izveidoto “Jauniešu velosipēdistu uzvedības aptauju” (Adolescent Cycling Behavior Questionnaire (ACBQ). Modifikāciju veica Eniņa, 2012, un Naivās fizikas uzdevumi ar grafisko attēlojumu no pētījuma „Naivas teorijas par kustību” (Naive Theories of Motion, McCloskey, Department of Psihology, John Hopkins University, 1982) sagatavoja Mališeva,2012. Pētījuma r…

Interaction in online learning environments : how to support collaborative activities in higher education settings

2006

Collaboration promoted and supported by instructional technology has the potential to lead learners to deeper understanding and knowledge building. There have been optimistic views that any web based interaction can be educationally valuable. However, online learning environments do not, as such, guarantee that learners will achieve genuine collaboration. It seems that there are several difficulties facing those who wish to employ online learning environments as a medium for productive learner interaction. The particular aim of this exploration of interaction and learning in computer supported collaborative learning environments was to study the interplay between learners and consider the w…

Using a blended approach to enrich MOOCs on Finnish education

2021

Blended education embraces various combinations of face-to-face and online teaching. It has become a normal part of higher education degree programmes. Since the late 1990s, the Open University of the University of Jyväskylä (JYUOpen) has been offering online and blended education for its rapidly growing number of students. For many years now, Finnish education has ranked high in PISA research. Furthermore, the University of Jyväskylä has been successful in global rankings, especially in the field of education (Shanghai Ranking: 36, QS World University Rankings: 51–100 and Times Higher Education: 67). In order to present the success factors of the Finnish education system, we offered our fi…

Conscription of Network Business Models

2010

As enterprises focus increasingly on core competencies, the importance of collaboration and knowledge sharing between organisations is greatly enhanced. This article examines the development of knowledge sharing during the initial exploratory stages of an emerging business network. We demonstrate how the business model can serve as a tool for spanning organisational boundaries. Through developing a business model, network enterprises can learn to understand each other, create common concepts within their business network and evaluate feasibility of the endeavour. peerReviewed

Complex Authority Network Interactions in the Common Information Sharing Environment

2019

European authorities collaborate as a community toward a coherent approach of situational understanding and open trust base information sharing. Innovation in multi-stakeholder collaboration networks involve complex collaboration between user community members, providing cross-sector, cross-border and cross-authority interaction and information sharing for collaborative situation awareness, and cooperation to increase safety and security. This study analyses data consisting of elements of use cases, collected from EU funded innovation projects. These were placed in a table based on similarity, difference and relevance to produce a classification. The results of this study indicate that use …