Search results for " behavior"
showing 10 items of 11374 documents
Plant-herbivorous beetle networks : molecular characterization of trophic ecology within a threatened steppic environment
2015
DNA barcoding facilitates many evolutionary and ecological studies, including the examination of the dietary diversity of herbivores. In this study, we present a survey of ecological associations between herbivorous beetles and host plants from seriously threatened European steppic grasslands. We determined host plants for the majority (65%) of steppic leaf beetles (55 species) and weevils (59) known from central Europe using two barcodes (trnL and rbcL) and two sequencing strategies (Sanger for mono/oligophagous species and Illumina for polyphagous taxa). To better understand the ecological associations between steppic beetles and their host plants, we tested the hypothesis that leaf beetl…
Physical activity and sense of coherence : a meta-analysis
2020
The salutogenic model of health proposes that sense of coherence, a multi-dimensional construct representing individuals’ perceptions that their environment is comprehensible, manageable, and meaningful, is a key determinant of stress management and well-being. Generalized resistance resources such as preventive health orientation, material resources, and social support are proposed as determinants of sense of coherence. Health behaviors, particularly physical activity, are proposed as indicators of a preventive health orientation and predictors of sense of coherence. We synthesized research on the relationship between physical activity and sense of coherence using three-level meta-analysis…
Binding analysis of Bacillus thuringiensis Cry1 proteins in the sugarcane borer, Diatraea saccharalis (Lepidoptera: Crambidae).
2015
Sugarcane borer (Diatraea saccharalis, F.) is an important corn pest in South America and United States. The aim of the present study was to analyze the susceptibility and binding interactions of three Cry1A proteins and Cry1Fa in a Brazilian D. saccharalis population. The results showed that Cry1Ab was the most active, followed by Cry1Ac, Cry1Fa and Cry1Aa. All Cry1-biotinylated proteins tested bound specifically to the D. saccharalis brush border membrane vesicles (BBMV). Heterologous competition assays showed shared binding sites for all Cry1A proteins and another one shared by Cry1Fa and Cry1Ab. Thus, pyramiding Cry1Aa/Cry1Ac and Cry1F proteins would be a recommended strategy for managi…
Challenges in the use of Near Infrared Spectroscopy for improving wood quality: A review
2018
Aims of study: Forestry-related companies require quality monitoring methods capable to pass a large number of samples. This review paper is dealing with the utilization of near infrared (NIR) technique for wood analysis.Area of study: We have a global point of view for NIR applications and characterization of different kind of wood species is considered.Material and methods: NIR spectroscopy is a fast, non-destructive technique, applicable to any biological material, demanding little or no sample preparation. NIR spectroscopy and multivariate analysis serve well in laboratories where the conditions are controlled. The main challenges to NIR spectroscopy technique in field conditions are mo…
Découverte d'Arthropodes et de bivalves inédits dans le Permien continental (Lodévois, France)
1997
Resume Des Triopsides, Conchostraces, Insectes, Bivalves, pistes et terriers d'Arthropodes sont decouverts dans le Groupe saxonien considere longtemps comme quasi azoique. Ces fossiles sont pour la plupart inedits, au niveau de l'espece, de la famille et de l'ordre. Chez les Insectes, de nouveaux taxons comblent des lacunes temporelles considerables, allant du Jurassique au Permien. Les informations recueillies vont permettre de rediscuter certaines phylogenies et de reapprecier l'impact de la crise fini-permienne sur cette classe. La repartition des Insectes et des Conchostraces suggere de donner un âge Koungourien a Tatarien (Leonardien a Capitanien) au ≪ Saxonien ≫.
RESEARCH PAPER: Multiple Sexual Ornamentation Signals Male Quality and Predicts Female Preference in Minnows
2010
Sexual ornamentation often consists of multiple components. Different sexual signals may indicate different aspects of mate quality or reflect quality in different time scales. On the other hand, same signals can have a dual function and are used both in male–male competition and courtship. Many fish species are capable of rapidly altering their colouration (ephemeral colour changes), but this capability is usually ignored in sexual selection studies. Here, we used experimentally manipulated social environments to study the ephemeral colour changes in multicomponent sexual signals of male minnows (Phoxinus phoxinus) during male–male competition and female choice. We found that the dominant …
The role of shame and guilt in social anxiety disorder
2021
Abstract Research suggests that shame and guilt may play a role in anxiety disorders. For social anxiety disorder (SAD), however, only a few studies investigated patients with the primary diagnosis of SAD. Thus, further research on shame and guilt in SAD is required. A secondary analysis of Data from the SOPHO-NET multicenter treatment study was performed. In a large sample of N = 495 patients with the primary diagnosis of SAD the relationship between shame and guilt with symptoms of social anxiety, depression, and interpersonal problems was examined by means of correlation analysis and additionally, a hierarchical linear regression analysis. To assess SAD, the German version of the Structu…
Privatister – hvem er de, og hva motiverer dem til å lykkes på eksamen? Kartlegging av bakgrunnsvariabler og deres intensjon i lys av en utvidet vers…
2016
Det finnes fa empiriske studier i Norge som kartlegger bakgrunnsvariabler av privatister og undersoker motivasjonsprosesser ved bruk av teoretisk tilnaerming. Hensikten med denne studien er todelt. Det forste malet er a kartlegge ulike sider ved privatistenes bakgrunn, i lys av aldersmessig sammensetting, kjonnsfordeling, antall pameldte eksamener, tidligere erfaring med privatistordningen, grunnene for a ta eksamen, privatistenes tilrettelegging av eksamen pa grunn av saerskilte behov, tidligere kontakt med PPT, og normativ pavirkning. Det andre malet er en teoretisk tilnaerming med fokus pa intensjonelle prosesser i lys av utvidet teori om planlagt atferd (TPB). Resultatene viser at priva…
School Adjustments in Children with Attention Deficit Hyperactivity Disorder (ADHD): Peer Relationships, the Quality of the Student-Teacher Relations…
2021
This study aimed to investigate how children with attention deficit hyperactivity disorder (ADHD) adjust to school when compared to typically developing students. The convenience sample consisted o...
The Spanish Version of the Empathy Questionnaire (EmQue): Evidence for Longitudinal Measurement Invariance and Relationship With Emotional Regulation
2018
Research Findings: Empathy, or the ability to understand what others are thinking or feeling, can be observed in early developmental stages. The purpose of this study was to validate the Spanish ve...