546 research outputs found

    Дискусійні питання історії ЗУНР

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    У статті аналізуються питання, які все ще залишаються в історіографії Західноукраїнської Народної Республіки. Автор звертає увагу на контроверсійні точки зору щодо революційних подій, які відбулися 1 листопада 1918 р. у Львові, стосовно часу існування ЗУНР, Акту злуки УНР та ЗУНР, причин поразки Української Галицької армії тощо.The author of the article analyses the questions that are still disputable in modern Ukrainian historiography. The author attracts our attention to the controversial points of view concerning the type of revolutionary events which took place on the 1 st of November 1918 in Lviv, concerning the time of WUPR existence, concerning the Act of Unification of Western Ukrainian People’s Republic end Ukrainian People’s Republic , concerning the reasons of the defeat of Ukrainian army, etc

    YES, WE COPE: Dyadic Coping as a Mediator Between Perceived Relationship Quality and Emotional Representation of COVID-19

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    Background The COVID-19 pandemic has brought about social changes that have impacted the functioning and dynamics of couples in a romantic relationship, arising from the overwhelming amount of added stress they have endured. Specifically, the divorce rate in Portugal has increased after lockdown, which underscores the adverse consequences of COVID-19 on couples. A lower quality of the couple's relationship may worsen the emotional representation of COVID-19; however, the literature suggests that perceived partner dyadic coping responses have a great influence on adverse events. The aim of the present study was to assess the mediating role of partner coping in the association between relationship quality and emotional representation of COVID-19. We also sought to observe whether the length of the relationship moderates this association. Methods Participants (N = 528) were adults living in Portugal (84.7% female) currently in a romantic relationship with their current partner for at least 1 year. Online data collection. Results We found that relationship quality predicted COVID-19 emotional representation, but this association was fully mediated by total dyadic coping. This association was especially significant in couples with a shorter length of time in the relationship. Conclusions We point out the importance of dyadic coping as a protective factor against emotional distress to cope with the ongoing stressors associated with the COVID-19 pandemic. These data suggest the need for relationship education programs that promote positive coping between partners

    Decapod crustacean larval communities in the Balearic Sea (western Mediterranean): Seasonal composition, horizontal and vertical distribution patterns

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    Decapod crustaceans are the main target species of deepwater bottomtrawl fisheries in the Balearic Sea but little is known about their larval stages. This work focuses on the species composition of the decapod larval community, describing the main spatio-temporal assemblages and assessing their vertical distribution. Mesozooplankton sampling was carried out using depth-stratified sampling devices at two stations located over the shelf break and themid slope, in the north-western and southern Mallorca in late autumn 2009 and summer 2010. Differences among decapod larvae communities, in terms of composition, adult's habitat such as pelagic or benthic, and distribution patternswere observed between seasons, areas and station. Results showed that for both seasonsmost species and developmental stages aggregatedwithin the upperwater column (above 75 mdepth) and showed higher biodiversity in summer compared to late autumn. Most abundant species were pelagic prawns (e.g., Sergestidae) occurring in both seasons and areas. The larval assemblages' distributions were different between seasonal hydrographic scenarios and during situations of stratified and non-stratified water column. The vertical distribution patterns of different larval developmental stages in respect to the adult's habitat were analyzed in relation to environmental variables. Fluorescence had the highest explanatory power. Four clearly different vertical patterns were identified: two corresponding to late autumn, which were common for all the main larval groups and other two in summer, one corresponding to larvae of coastal benthic and the second to pelagic species larvae.Versión del editor2,655

    Diversidade de artrópodes bioindicadores em dois sistemas culturais do Ribatejo: monocultura/sucessão cultural

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    Os artrópodes representam uma grande percentagem do total de espécies da fauna do solo e, independentemente das funções que desempenham fornecem importantes serviços ao ecossistema que dependem de práticas culturais/ fitossanitárias que condicionam espécies presentes e suas interações. Neste trabalho, avaliou-se abundância dos taxa de artrópodes considerados como bioindicadores de qualidade do solo, entre 2018 e 2021, no Ribatejo, em dois campos piloto com diferentes sistemas culturais: (i) rotação de batata e milho (Golegã) e (ii) sistema de monocultura de tomate para indústria (Vila Franca de Xira). Nos dois campos instalaram-se 16 armadilhas “pitfall” com etilenoglicol, em cada momento de amostragem/local, tendo sido recolhidas após 7 dias. Os artrópodes capturados foram separados em morfotipos e identificados. O número total de morfotipos separados foi 62, 157, 132 e 117, em 2018, 2019, 2020 e 2021, respetivamente. O campo com monocultura manifestou, durante os 4 anos de amostragem, biodiversidade de artrópodes inferior ao campo com rotação. No que diz respeito aos carabídeos, no campo com rotação observaram-se 9 (2019) e 13 morfotipos (2020), respetivamente, e no campo com monocultura 3 morfotipos (2019) e nenhum carabídeo (2020). Os resultados indicam tendência para maior biodiversidade e populações mais equilibradas com a continuação da prática de rotação.Arthropods represent a large percentage of the soil fauna and, regardless of the functions they perform, they all provide important ecosystem services, which depend on cultural/phytosanitary practices that influence the species present and their interactions. In the present study, the abundance of different taxa of arthropod bioindicators of soil quality were evaluated along 2018-2021 in the Ribatejo region in two sperimental fields with different crop systems: (i) potato and maize rotation (Golegã) and (ii) processing tomato monoculture system (Vila Franca de Xira). Sixteen pitfall traps with ethylene glycol were installed for 7 days at each sampling time/site. The captured arthropods were separated into morphotypes and identified. The results revealed that the total number of separate morphotypes was 62, 157, 132 and 117, in 2018, 2019, 2020 and 2021, respectively. The field with monoculture revealed, during the 4 years of sampling, an arthropod biodiversity lower than the field with crop rotation. With regard to carabids, in the field with rotation, 9 (2019) and 13 morphotypes (2020) were observed, respectively; and in the field with monoculture only 3 morphotypes (2019) and no carabid (2020) were collected. A trend towards greater biodiversity and more balanced populations was observed with the rotation practice maintenance.info:eu-repo/semantics/publishedVersio

    SOIL QUALITY INDEX RELATIONSHIP WITH RICE PRODUCTION IN SUKOHARJO REGENCY, CENTRAL JAVA, INDONESIA

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    Climate change has an effect on the degradation of soil, water, growth and crop production. Soil degradation caused by various factors decrease in physical, chemical, and biological soil processes. The decrease in physical properties of the soil due to erosion, compaction, and fractures. The decrease in soil chemical properties is due to nutrient leaching, acidification, and salinization. The decrease of biological properties of the soil is due to the reduction of soil organic matter and diversity of soil biota. Climate change affects the diversity of organisms in the soil. Soil organisms requiring certain temperature conditions for its activities and the state of extremely dry, extreme wet, and increased soil temperature will affect the diversity of soil organisms. The use of fertilizers and organic materials can increase and balance the availability of nutrients needed by plants. The fertilizer can influence the soil fertility represented by a soil quality index. Soil quality is a measure to describe the condition of the soil based on three indicators of the physical, chemical and biological properties. The purpose of this research was to determine the relationship between soil quality with rice productivity in Sukoharjo, Central Java that will affect the climate change. The research was conducted in March-November 2015. The method in this research was a descriptive explorative by field surveying. The sampling method is purposive random sampling. Soil quality indices in eleven sites, Sukoharjo has medium and good (5.47 to 6.91)  category. Soil quality indicators are the most influential on permeability, N-total, K-available, and soil organic matter. The regression Soil Quality Index with rice productivity is 17.7%. The relationship between Soil Quality Index against the highest rice yield soil Permeability has a coefficient determination 43%. Eleven sites has medium-good soil quality and rice productivity with medium categories

    Stability of circular orbits of spinning particles in Schwarzschild-like space-times

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    Circular orbits of spinning test particles and their stability in Schwarzschild-like backgrounds are investigated. For these space-times the equations of motion admit solutions representing circular orbits with particles spins being constant and normal to the plane of orbits. For the de Sitter background the orbits are always stable with particle velocity and momentum being co-linear along them. The world-line deviation equations for particles of the same spin-to-mass ratios are solved and the resulting deviation vectors are used to study the stability of orbits. It is shown that the orbits are stable against radial perturbations. The general criterion for stability against normal perturbations is obtained. Explicit calculations are performed in the case of the Schwarzschild space-time leading to the conclusion that the orbits are stable.Comment: eps figures, submitted to General Relativity and Gravitatio

    Low temperature transport in AC-driven Quantum Dots in the Kondo regime

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    We present a fully nonequilibrium calculation of the low temperature transport properties of a quantum dot in the Kondo regime when an AC potential is applied to the gate voltage. We solve a time dependent Anderson model with finite on-site Coulomb interaction. The interaction self-energy is calculated up to second order in perturbation theory in the on-site interaction, in the context of the Keldysh non-equilibrium technique, and the effect of the AC voltage is taken into account exactly for all ranges of AC frequencies and AC intensities. The obtained linear conductance and time-averaged density of states of the quantum dot evolve in a non trivial way as a function of the AC frequency and AC intensity of the harmonic modulation.Comment: 30 pages,7 figure
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