Search results for "Survey Research"
showing 10 items of 111 documents
Long-term changes in winter abundance of the barbastelle Barbastella barbastellus in Poland and the climate change - Are current monitoring schemes s…
2020
Warmer winters may lead to changes in the hibernation behaviour of bats, such as the barbastelle Barbastella barbastellus, which prefers to hibernate at low temperatures. The species is also known for its large annual fluctuations in the number of wintering individuals, so inference about population trends should be based on long-term data. Prior to 2005, analyses indicated stable or even increasing barbastelle population in Poland. We analysed the results of 13 winter bat counts (2005–2017) of the species from 15 of the largest hibernacula, and additional site of 47 small bunkers, in Poland. The total number of wintering individuals remained stable during the study period, because the barb…
The "Tracked Roaming Transect" and distance sampling methods increase the efficiency of underwater visual censuses.
2018
Underwater visual census (UVC) is the most common approach for estimating diversity, abundance and size of reef fishes in shallow and clear waters. Abundance estimation through UVC is particularly problematic in species occurring at low densities and/or highly aggregated because of their high variability at both spatial and temporal scales. The statistical power of experiments involving UVC techniques may be increased by augmenting the number of replicates or the area surveyed. In this work we present and test the efficiency of an UVC method based on diver towed GPS, the Tracked Roaming Transect (TRT), designed to maximize transect length (and thus the surveyed area) with respect to diving …
Fruit body based inventories in wood-inhabiting fungi: Should we replicate in space or time?
2016
We assessed the effect of survey design on the results when conducting fruit body surveys of wood-inhabiting fungi. Our results demonstrate that the optimal design depends on the ecological question to be addressed, as well as the group of fungal species under research. If the aim is to record the total species richness in a dead wood unit or to estimate the population size of a species, repeating the survey over time is generally necessary. However, if the aim is to estimate the total species richness in the forest or to assess how environmental covariates influence species richness or community composition, it is generally more efficient to increase the number of dead wood units than to r…
The adoption of green energy technologies: The role of policies in Austria, Germany, and Switzerland
2017
We contribute to the existing research about policy-induced technology adoption in several ways. First, we suggest a new survey design to measure the energy-related policy environment. Second, we simultaneously estimate the policy effects for the adoption propensity and the adoption intensity simultaneously and, third, we compare the policy effects in the three countries, Austria, Germany, and Switzerland. Based on a representative sample of firms for all three countries we find that policies essentially promote the adoption of technologies and they are practically ineffective for the intensity, which poses a great challenge to future policy designs. Voluntary agreements or demand-related f…
Compliance, practices, and attitudes towards VTIs (Vehicle Technical Inspections) in Spain: What prevents Spanish drivers from checking up their cars?
2021
Objective Mechanical conditions of vehicles may play a determinant role in driving safety, the reason why vehicle periodical technical inspections (VTIs) are mandatory in many countries. However, the high number of drivers sanctioned for not complying with this regulation is surprisingly high, and there is not much evidence on what kind(s) of motives may explain this concerning panorama. This study aimed to identify the aspects that modulate the relationship between complying (or not) with VTI’s standards in a nationwide sample of Spanish drivers. The study design also addressed the drivers’ awareness regarding different risky behaviors while driving, depending on their sex and their crash…
Expectation or Sensorial Reality? An Empirical Investigation of the Biodynamic Calendar for Wine Drinkers.
2017
International audience; The study's aim was to investigate a central tenet of biodynamic philosophy as applied to wine tasting, namely that wines taste different in systematic ways on days determined by the lunar cycle. Nineteen New Zealand wine professionals tasted blind 12 Pinot noir wines at times determined within the biodynamic calendar for wine drinkers as being favourable (Fruit day) and unfavourable (Root day) for wine tasting. Tasters rated each wine four times, twice on a Fruit day and twice on a Root day, using 20 experimenter-provided descriptors. Wine descriptors spanned a range of varietal-relevant aroma, taste, and mouthfeel characteristics, and were selected with the aim of …
Prevalence os sending, receiving and forwarding sexts among youths: A three-level meta-analysis.
2020
Alttes ajuts: Conselleria d'Educació, Investigació, Cultura i Esport DOGV No. 7943, ACIF, 837 2017 By systematic review with a three-level, mixed-effects meta-analysis, this paper examines the prevalence of sexting experiences among youths aimed at analyzing conceptual and methodological moderators that might explain its heterogeneity. A search was conducted of five bibliographic databases and grey literature up until February 2020. The risk of bias in primary studies was assessed. A total of seventy-nine articles met the set inclusion criteria. Mean prevalences for sending, receiving and forwarding sexts were.14 (95% CI:.12,.17),.31 (95% CI:.26,.36) and.07 (95% CI:.05,.09), respectively, e…
Preferencias de los y las estudiantes universitarias sobre el empleo desde una perspectiva de género
2015
Se presenta un estudio de encuesta sobre las preferencias que tiene el alumnado universitario al decidirse por un trabajo, lo que creen que les debe aportar y cómo debe ser la empresa en la que desearían trabajar en función de la variable género. Diferentes investigaciones, señalan que las personas desarrollan valores, expectativas y habilidades profesionales diferentes asociadas a la carrera y a la profesión en función del género. El objetivo de este trabajo es analizar los factores que llevan a los y las jóvenes a percibir el trabajo o profesión y determinar si dicha percepción es diferente por ser hombre o mujer. A través de un cuestionario ad hoc compuesto por 52 ítems de escala Likert…
The role of stress and self-efficacy in somatic and psychological symptoms during the climacteric period - Is there a specific association?
2019
Abstract Objectives To investigate the influence and specificity of sociodemographic and psychological factors on the perception of symptoms associated with menopause. Study design Data are based on a nationwide cross-sectional survey study in Germany. A representative sample of 1350 females aged 14–95 years was examined. Sociodemographic factors, perceived stress, and self-efficacy were assessed. Women were divided into three age groups (young women ≤ 44 years; perimenopausal women 45–60 years; older women ≥ 61 years), and the Menopause Rating Scale (MRS) was used over the entire life span. Main outcome measures Total score on the Menopause Rating Scale (MRS) and hot flushes/sweating asses…
Preferences of Physical Education Profiles Among Polish Adolescents
2020
The purpose of this study was to examine the association of preferred profiles of Physical Education (PE) classes with gender and school level among Polish adolescents. In the cross-sectional survey study, participated 1,340 Polish students (including 50% of girls), attending middle and high schools, aged between 13–19 years old. The participants selected one of four preferred profiles of PE classes. The majority (n = 845, 63%) of students participated in PE for "fun – pleasure – entertainment", whereas only one third of students (n = 419, 31%) preferred "exercise – sweat – fitness" as a profile of PE classes. The preference of "fun – pleasure – entertainment" decreased about 41% for boys a…