83 research outputs found

    Inequality and Procedural Justice in Social Dilemmas

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    This study investigates the influence of resource inequality and the fairness of the allocation procedure of unequal resources on cooperative behavior in social dilemmas. We propose a simple formal behavioral model that incorporates conflicting selfish and social motivations. This model allows us to predict how inequality influences cooperative behavior. Allocation of resources is manipulated by three treatments that vary in terms of procedural justice: allocating resources randomly, based on merit, and based on ascription. As predicted, procedural justice influences cooperation significantly. Moreover, gender is found to be an important factor interacting with the association between procedural justice and cooperative behavior.

    Моделирование рынка труда с использованием двухаргументной функции предложения труда

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    Розглянуто двохаргументну функцію індивідуальної пропозиції праці, аргументами якої є оплата праці та рівень безробіття. Досліджено умови виникнення прямої та зворотної залежності між цими двома економічними показниками. За допомогою двохаргументної функції проведено аналіз процесів на конкурентному та монопсонічному ринках праці. Обґрунтованo доцільність та умови застосування екзогенного підвищення оплати праці шляхом підвищення мінімальної заробітної плати.A two-argument function of individual labor supply is considered. Real wage and unemployment rate are the arguments of this function. The conditions of arising of direct and opposite dependence between these two economic indicators are investigated. This function is used to analyze processes in a competitive and monopsonic labor market. The expediency and conditions for applying the exogenous increase in labor compensation by fixing minimal wage are substantiated

    Structural insights into the contactin 1 - neurofascin 155 adhesion complex

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    Cell-surface expressed contactin 1 and neurofascin 155 control wiring of the nervous system and interact across cells to form and maintain paranodal myelin-axon junctions. The molecular mechanism of contactin 1 - neurofascin 155 adhesion complex formation is unresolved. Crystallographic structures of complexed and individual contactin 1 and neurofascin 155 binding regions presented here, provide a rich picture of how competing and complementary interfaces, post-translational glycosylation, splice differences and structural plasticity enable formation of diverse adhesion sites. Structural, biophysical, and cell-clustering analysis reveal how conserved Ig1-2 interfaces form competing heterophilic contactin 1 - neurofascin 155 and homophilic neurofascin 155 complexes whereas contactin 1 forms low-affinity clusters through interfaces on Ig3-6. The structures explain how the heterophilic Ig1-Ig4 horseshoe's in the contactin 1 - neurofascin 155 complex define the 7.4 nm paranodal spacing and how the remaining six domains enable bridging of distinct intercellular distances

    Renewable, ethical? Assessing the energy justice potential of renewable electricity

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    Energy justice is increasingly being used as a framework to conceptualize the impacts of energy decision making in more holistic ways and to consider the social implications in terms of existing ethical values. Similarly, renewable energy technologies are increasingly being promoted for their environmental and social benefits. However, little work has been done to systematically examine the extent to which, in what ways and in what contexts, renewable energy technologies can contribute to achieving energy justice. This paper assesses the potential of renewable electricity technologies to address energy justice in various global contexts via a systematic review of existing studies analyzed in terms of the principles and dimensions of energy justice. Based on publications including peer reviewed academic literature, books, and in some cases reports by government or international organizations, we assess renewable electricity technologies in both grid integrated and off-grid use contexts. We conduct our investigation through the rubric of the affirmative and prohibitive principles of energy justice and in terms of its temporal, geographic, socio-political, economic, and technological dimensions. Renewable electricity technology development has and continue to have different impacts in different social contexts, and by considering the different impacts explicitly across global contexts, including differences between rural and urban contexts, this paper contributes to identifying and understanding how, in what ways, and in what particular conditions and circumstances renewable electricity technologies may correspond with or work to promote energy justice

    Simple tests for exogeneity of a binary explanatory variable in count data regression models

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    This article investigates power and size of some tests for exogeneity of a binary explanatory variable in count models by conducting extensive Monte Carlo simulations. The tests under consideration are Hausman contrast tests as well as univariate Wald tests, including a new test of notably easy implementation. Performance of the tests is explored under misspecification of the underlying model and under different conditions regarding the instruments. The results indicate that often the tests that are simpler to estimate outperform tests that are more demanding. This is especially the case for the new test

    Silica cubes with tunable coating thickness and porosity : From hematite filled silica boxes to hollow silica bubbles

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    We investigate the material properties of micron-sized silica coated cubic colloids, focusing on the coating thickness and porosity. The thickness of the silica coating of core-shell α-Fe2O3@SiO2 cubes and their corresponding hollow cubes can be tuned between 20 and 80 nm, spanning the range of silica bubbles to silica boxes. The porosity of the silica cubes can be increased controllably by surface-protected etching using hot water as mild etchant and polyvinylpyrrolidone (PVP) as protecting polymer. We introduce infrared spectroscopy as a quantitative tool to monitor the extent of etching over time and to evaluate the influence of PVP on the etching process. The molar mass of PVP does not affect the etching rate, whereas an increased amount of PVP leads to enhanced protection against etching. Silica etching is found to be a two-step process, comprising a fast initial etching followed by a slower continuation. Hollow, porous silica cubes maintain their shape after extensive thermal treatment, demonstrating their mechanical stability

    Relationship between inhaled corticosteroids adherence, short-acting beta agonists use, exacerbations and self-reported asthma control

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    ABSTRACT: Introduction The relationship between inhaled corticosteroids (ICS) adherence, short-acting beta agonist (SABA) use, and asthma outcomes is complex. Aim To investigate these relationships in a Dutch asthma patient cohort. Methods Patients aged C 12 years diagnosed with asthma who received C 2 inhalation medication prescriptions in 2016 were selected from Nivel Primary Care Database. This database contains information about patient characteristics, GP consultations, diagnoses and prescriptions. Adherence to ICS (implementation operationalized as Continuous Measure of medication Availability), SABA use (number of prescriptions), exacerbations (operationalized as a short course oral corticosteroids with daily dose[ 20 mg) and self-reported asthma control (measured with the Asthma Control Questionnaire; ACQ) were computed. Multilevel logistic regression analyses were used to model associations between ICS adherence, SABA use, and asthma outcomes, controlling for age, sex, comorbidity, comedication and asthma severity. Results Prescription data of 13,756 patients were included. ICS adherence averaged 62%. About 31% of patients received C 2 SABA prescriptions, 13% of patients experienced C 1 exacerbations in 2016. Self-reported asthma control was available for a subsample of patients (n = 2,388); 51% reported controlled asthma (ACQ score \0.75). A higher number of SABA prescriptions was associated with a higher risk of exacerbations and a higher risk of uncontrolled asthma, but also with being adherent to ICS. ICS adherence was not clearly associated with exacerbations, whilst an ICS adherence of[ 50% was associated with controlled asthma. Conclusion Minimizing SABA use appears to be an important strategy in reducing exacerbations and improving self-reported asthma control
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