Search results for "regression"
showing 10 items of 2619 documents
IN-WORK POVERTY IN LATVIA
2019
The results of a survey carried out in Latvia in 2015 are examined to estimate the scope and depth of in-work poverty. The widely used EU-SILC data considerably underestimate in-work poverty in Latvia. Logistic regression analysis indicates that persons with low education, poor health, persons of pre-retirement age, and those employed in non-standard work arrangements are more likely exposed to a high in-work poverty risk. Social transfers and the income of other household members do not significantly reduce this risk. The Latvian government should provide adequate social protection and funding to alleviate the in-work poverty problem.
The COVID‐19 pandemic and government responses: A gender perspective on differences in public opinion
2021
Abstract Objective The 2019 novel coronavirus disease (COVID-19) crisis has led to shutdowns of the cultural, associational, and economic life in many parts of the world and had a severe impact on gender relations in many societies. This study engages with gender differences in public support of severe infringements of personal and economic freedoms. Methods We use data from an original survey conducted by CINT in the United States and Germany in June 2020. Descriptive statistics both aggregated for the two countries and then split by country as well as multinomial logistic regression analyses gauge gender differences in support of COVID-19 related confinement measures. Results Men and wome…
Corticosteroid-free immunosuppression in liver transplantation: a meta-analysis and meta-regression of outcomes.
2009
To examine the impact of steroid withdrawal from the immunosuppression protocols in liver transplantation. The electronic databases Medline, Embase, Pubmed and the Cochrane Library were searched. Meta-analysis pooled the effects of outcomes of a total of 2590 patients enrolled into 21 randomized controlled trials (RCTs), using classic and modern meta-analytic methods. Meta-analysis of RCTs addressing patients transplanted for any indication showed no differences between corticosteroid-free immunosuppression and steroid-based protocols in most of the analyzed outcomes. More importantly, steroid-free cohorts appeared to benefit in terms of de novo diabetes mellitus development [R.R = 1.86 (1.…
Semisupervised nonlinear feature extraction for image classification
2012
Feature extraction is of paramount importance for an accurate classification of remote sensing images. Techniques based on data transformations are widely used in this context. However, linear feature extraction algorithms, such as the principal component analysis and partial least squares, can address this problem in a suboptimal way because the data relations are often nonlinear. Kernel methods may alleviate this problem only when the structure of the data manifold is properly captured. However, this is difficult to achieve when small-size training sets are available. In these cases, exploiting the information contained in unlabeled samples together with the available training data can si…
Association between greenspace and lung function in Italian children-adolescents
2022
Background: Few studies have examined the impact of urban greenspace exposure on lung function in children-adolescents, and the available evidence is still inconsistent. The aim of the current study was to verify the hypothesis that the effects of greenspace exposure vary with differing levels of lung function of children-adolescents. Methods: Between November 2005 and May 2006, 2150 children-adolescents (age-range: 10-15 years) living in the city of Palermo were enrolled in a cross-sectional survey. Parents were interviewed through a modified version of the Italian Studies on Respiratory Disorders in Children and the Environment (SIDRIA) questionnaire. All children-adolescents performed sp…
Predictors of Job Satisfaction among Staff in Residential Settings for Persons with Intellectual Disabilities: A Comparison between Three Residential…
2010
Background This cross-sectional study aims to assess whether there are differences in staff job satisfaction, including organizational and individual characteristics, between three residential models for adults with intellectual disabilities (small residential home, group home and institution) and to investigate the organizational and individual variables associated with staff job satisfaction. Methods A standardized self-administered questionnaire (Job Satisfaction Survey) was distributed together with demographic questions between April 2007 and June 2007. In total, 1301 staff members completed the questionnaire. Results We found that staff working at small homes had a significantly hi…
When does Regression discontinuity design work? Evidence from random election outcomes
2018
We use elections data in which a large number of ties in vote counts between candidates are resolved via a lottery to study the personal incumbency advantage. We benchmark non‐experimental regression discontinuity design (RDD) estimates against the estimate produced by this experiment that takes place exactly at the cutoff. The experimental estimate suggests that there is no personal incumbency advantage. In contrast, conventional local polynomial RDD estimates suggest a moderate and statistically significant effect. Bias‐corrected RDD estimates that apply robust inference are, however, in line with the experimental estimate. Therefore, state‐of‐the‐art implementation of RDD can meet the re…
Renewable Energy Sources in the Baltic States and New Business Approach of the Sector
2021
Renewable energy sources (RES) are efficient in meeting the demand for clean and affordable energy. The need for RES is undeniable and has many advantages but there are also some challenges that need to be taken into consideration and adapted to the energy system. One of the challenges is RES volatility and its impact on electricity prices and power system operation. Europe is trending to power system decentralisation through the involvement of local authorities, active consumers and citizens in the system operation. This article provides main information about the energy sector of Latvia and RES in the Baltic countries. It proposes a methodology for the complex analysis of correlation and …
HIV Prevalence in some African Territories: Socio-Economic Drivers
2022
In 2020, 35% of all HIV-positive people in the world lived in Eastern and Southern Africa. This work aims at assessing the relationship between socio-economic drivers and HIV prevalence at the sub-national level in these countries. The data used are drawn from the Demographic and Health Survey, in which a subset of respondents is tested for HIV. Using a fractional logistic regression model on clusters of individuals, middle-to-high wealth is positively associated with higher HIV prevalence, while a higher average number of children acts as a protective factor; moreover, higher proportions of people who have never been in sexual relationships lower their cluster’s HIV prevalence but HIV-posi…
Using Landsat TM and field data to produce maps of predicted bird densities in Latvian farmland
2005
Models of farmland bird population densities established from field surveys were applied to classified satellite data for mapping of predicted bird numbers. The field survey system was based upon point counts of birds and descriptions of their habitat within a 200 m radius. The relationship between birds and habitats was analysed by means of multiple regression analysis. The resulting regression models were coded into classified Landsat Enhanced Thematic Mapper (ETM+) data which had similar land cover/use classes as the field observation data. With the use of a circular 200 m radius moving window approach, simulated maps of predicted bird population densities were produced. The results indi…