Search results for "CIP"
showing 10 items of 15068 documents
The Effect of Predator Population Dynamics on Batesian Mimicry Complexes.
2022
Understanding Batesian mimicry is a classic problem in evolutionary biology. In Batesian mimicry, a defended species (the model) is mimicked by an undefended species (the mimic). Prior theories have emphasized the role of predator behavior and learning as well as evolution in model-mimic complexes but have not examined the role of population dynamics in potentially governing the relative abundances and even persistence of model-mimic systems. Here, we examined the effect of the population dynamics of predators and alternative prey on the prevalence of warning-signaling prey composed of models and mimics. Using optimal foraging theory and signal detection theory, we found that the inclusion …
Vascular Risk Factors in Mild Cognitive Impairment Subtypes
2007
<i>Background and Aim:</i> To investigate the role of vascular risk factors in different subtypes of mild cognitive impairment (MCI) in a multicentric, clinic-based, cross-sectional study. <i>Methods:</i> Two-hundred and seven subjects with MCI were included in the study: 33 with single non-memory MCI (snmMCI), 42 with multiple-domain amnestic MCI (mdMCI-a) and 132 with amnestic MCI (aMCI). Several clinical vascular risk factors and magnetic resonance imaging (MRI) brain lesions were evaluated. <i>Results:</i> snmMCI showed a higher frequency of ischaemic heart disease and of transient ischaemic attack (TIA)/stroke, a higher Hachinski ischaemic score and …
Izmantoto disciplinēšanas tehniku saistība ar vecāku kompetences izjūtu pirmsskolas vecuma bērnu vecākiem
2021
Bakalaura darba pētījuma mērķis bija noteikt saistības starp vecāku izmantotajām disciplinēšanas tehnikām un vecāku kompetences izjūtu pirmsskolas vecuma bērnu vecākiem. Pētījumā piedalījās 50 vecāki (44 mātes un 6 tēvi), kuriem vismaz viens bērns ir vecumā no 3 līdz 5 gadiem (25 meitas un 25 dēli: 23 bija 3 gadīgi, 16 bija 4 gadīgi un 11 bija 5 gadīgi). Tika veikts korelatīvs pētījums, izmantojot instrumentus: “Vecāku kompetences izjūtas skala” (Parenting sense of competence scale, Johnston & Mash, 1989). Latviešu valodā skalu adaptējušas I. Skreitule – Pikše, S. Sebre (Skreitule-Pikše, I., Sebre, S., 2008) un “Aptauja par disciplinēšanas tehnikām”, kas ir izveidota šī pētījuma vajadzībām.…
Author Correction: Evaluation of three methods for biomass estimation in small invertebrates, using three large disparate parasite species as model o…
2018
Invertebrate biomass is considered one of the main factors driving processes in ecosystems. It can be measured directly, primarily by weighing individuals, but more often indirect estimators are used. We developed two indirect and non-destructive approaches to estimate biomass of small invertebrates in a simple manner. The first one was based on clay modelling and the second one was based on image analysis implemented with open-source software. Furthermore, we tested the accuracy of the widely used geometric approximation method (third method). We applied these three different methods to three morphologically disparate model species, an acanthocephalan worm, a crustacean and a flatworm. To …
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 (…
L'acquisto di immobili da costruire
2007
La tematica affrontata è di grande importanza pratica, oggetto di recente riforma. La trattazione parte da lontano, toccando la storia dell'istituto fino ai risvolti di diritto comparato. I: Dal cosiddetto «preliminare ad effetti anticipati» all’«acquisto di immobili da costruire». – II: La disciplina dei contratti di «acquisto di immobili da costruire». – III: Vendita forzata, fallimento e proposte de iure condendo. – Appendice.
Digital Activism in Russia: The Evolution and Forms of Online Participation in an Authoritarian State
2020
AbstractThis chapter describes how digitalization has affected activism in Russia by tracing the evolution, particularity, and the most visible forms of online activism in the context of the increasingly authoritarian Russian state. It discusses online activism in relation to “connective action” and illustrates it with two examples of contentious political activism: the anti-corruption campaign led by Alexei Navalny and the struggle to protect online communication from state surveillance by the Telegram messenger service. In addition, the chapter presents examples of Russian activism, which do not directly challenge the Kremlin.
MobileMonday culture : the lure of participatory space
2010
This master’s thesis explores participatory culture’s social logic and its manifestations in social media. It employs the case study method to examine participatory culture’s patterns of interaction through the experiences of participants in Mobile Monday, a global community sharing common professional interests in mobile communications. It provides an historical perspective on the technology and concepts used in social media, and applies a theoretical framework based on the premise of participatory culture as a manifestation of the postmodern condition, influenced by tacit aesthetics, and dominated by media culture. The framework includes aesthetic strategies related to social media and th…
Multidisciplinary Peer-Mentoring Groups Supporting Knowledge Sharing in Doctoral Education
2021
Obtaining a doctoral degree requires acquisition of different types of skills and knowledge. The aim of this article is to explore multidisciplinary peer-mentoring groups (PMGs) facilitated by senior academics as a knowledge sharing practice in doctoral education. Drawing from interviews with participants of PMGs at a Finnish university, we found that the participants perceived that cultures and practices of doctoral education in departments and faculties, as well as limited support from supervisors might hinder knowledge sharing. They highlighted that a flat hierarchy and confidential atmosphere supported by the multidisciplinary group composition promoted knowledge sharing and emotional s…
Evaluation of the peer leadership for physical literacy intervention : A cluster randomized controlled trial
2023
Purpose The purpose of this research was to develop, implement, and test the efficacy of a theory-driven, evidence-informed peer leadership program for elementary school students (Grade 6 and 7; age 11–12 years) and the Grade 3/4 students with whom they were partnered. The primary outcome was teacher ratings of their Grade 6/7 students’ transformational leadership behaviors. Secondary outcomes included: Grade 6/7 students’ leadership self-efficacy, as well as Grade 3/4 motivation, perceived competence, general self-concept, fundamental movement skills, school-day physical activity, and program adherence, and program evaluation. Methods We conducted a two-arm cluster randomized controlled t…