Education and permanent childlessness: Austria vs. Sweden; a research note

In this research note we extend our previous study of the association between educational attainment and permanent childlessness in Sweden (Hoem et al., 2006) to cover Austria, and we make comparisons between the two countries. In both investigations we have defined educational attainment in terms of both educational level and educational field. We find largely the same pattern of childlessness by educational field in both countries; in particular at each educational level women educated for teaching jobs or for health occupations typically have lower childlessness than other lines of education. However, for most groups childlessness is higher in Austria, and for academic educations it is much higher. We attribute these differences to institutional differences in the two countries which may bring about a different culture of reproductive behavior.Austria, education, fertility

A study of the effectiveness of a structured tutoring program on student reading skills

The purpose of this study was to determine if the students in the after school tutoring program made greater gains when receiving tutoring by certified teachers in a consistent structured program when compared to students not enrolled in the program as measured by a pre and post assessment using the Macmillan/McGraw-Hill Informal Reading Inventory and Decoding and Phonics Inventory. The population for the study consisted of two groups of first and second grade students. Group one (treatment group) attended the tutoring program, which met two times per week. A certified teacher tutored students, one on one. Group two (control Group) did not attend the tutoring program. A pre and post assessment was administered and a comparison was made between the treatment and control groups to determine the difference in gains made by each group. Results indicate gains in both groups, with a greater gain made by the treatment group. The findings of this study indicate a meaningful difference in the gains made by the treatment group

Fertilität, Familiengründung und Familienerweiterung in den nordischen Ländern

Dieser Beitrag beschäftigt sich mit der Geburtenentwicklung in den nordischen Ländern seit den 1970er Jahren und den Wirkungen familienpolitischer Maßnahmen auf die Fertilitätsentwicklung. Basis der Analysen bilden Auswertungen harmonisierter Registerdaten Dänemarks, Finnlands, Norwegens und Schwedens. Der erste Teil des Beitrags bietet einen Überblick über die Entwicklung der Fertilität in den nordischen Ländern nach Alter und Geburtenordnung. Dies erlaubt, gemeinsame von länderspezifischen Entwicklungen zu unterscheiden. Daran schließt sich eine Darstellung des Zusammenhangs zwischen Bildungsrichtungen und Fertilität. Im letzten Teil des Beitrages erörtern wir, welchen Einfluss familienpolitische Maßnahmen, insbesondere ein einkommensbezogenes Elterngeld, ein auf den Geburtenabstand bezogenes Elterngeld, sowie die Inanspruchnahme der Elternzeit durch Väter auf Geburtenverhalten und Geburtenentwicklung in den einzelnen Ländern hatten.Denmark, Finland, Germany, Norway, Sweden, family policies, fertility

Interbank market friction-induced holdings of precautionary liquidity: implications for bank loan supply and monetary policy implementation

We analyze the impact of overnight interbank market frictions on bank loan supply when banks face idiosyncratic liquidity risk and discuss resulting implications for monetary policy implementation. Sufficiently pronounced interbank market frictions imply that banks hold positive or negative precautionary liquidity. Holding positive (negative) precautionary liquidity means that banks hold more (less) liquidity than they expect to need. As holding precautionary liquidity is costly, interbank market frictions negatively influence bank loan supply. However, by means of its standing facilities, the central bank not only offers an alternative to using the interbank market but also determines the costs of friction-induced holdings of positive or negative precautionary liquidity. Therefore, the facilities allow the central bank to influence banks’ expected liquidity costs, and thereby their loan supply, so that interbank market frictions need not be an impediment to monetary policy transmission

quality assurance and support measures for solar cooling on system level

Abstract Within the IEA SHC Task 48 "Quality assurance and support measures for Solar Cooling" the analysis and evaluation of the systems has been one of the four main focuses. Here the activities are including the lab- and field-based characterization of the systems, the definition and application of performance figures, a guideline for a reliable monitoring procedure including methods for automated error detection and an updated overview on worldwide installed DEC systems including hints and good practice examples. They are furthermore leading to three different easy-to-use tools for solar cooling systems: The LCA tool considers environmental and energetic values for the evaluation, the PISTACHE tool offers a fast pre-sizing of the systems giving support for the planner in advance and finally an Excel tool allows a complete system evaluation using long term monitoring data

Generations and Gender Survey (GGS)

The Generations and Gender Survey (GGS) is one of the two pillars of the Generations and Gender Programme designed to improve understanding of demographic and social development and of the factors that influence these developments. This article describes how the theoretical perspectives applied in the survey, the survey design and the questionnaire are related to this objective. The key features of the survey include panel design, multidisciplinarity, comparability, context-sensitivity, inter-generational and gender relationships. The survey applies the life course approach, focussing on the processes of childbearing, partnership dynamics, home leaving, and retiring. The selection of topics for data collection mainly follows the criterion of theoretically grounded relevance to explaining one or more of the mentioned processes. A large portion of the survey deals with economic aspects of life, such as economic activity, income, and economic well-being; a comparably large section is devoted to values and attitudes. Other domains covered by the survey include gender relationships, household composition and housing, residential mobility, social networks and private transfers, education, health, and public transfers. The third chapter of the article describes the motivations for their inclusion. The GGS questionnaire is designed for a face-to-face interview. It includes the core that each participating country needs to implement in full, and four optional sub-modules on nationality and ethnicity, on previous partners, on intentions of breaking up, and on housing, respectively. The participating countries are encouraged to include also the optional sub-modules to facilitate comparative research on these topics.economic activity, event history, family, fertility, gender, generation, household, panel studies, survey, values

The combined effects of reactant kinetics and enzyme stability explain the temperature dependence of metabolic rates

A mechanistic understanding of the response of metabolic rate to temperature is essential for understanding thermal ecology and metabolic adaptation. Although the Arrhenius equation has been used to describe the effects of temperature on reaction rates and metabolic traits, it does not adequately describe two aspects of the thermal performance curve (TPC) for metabolic rate—that metabolic rate is a unimodal function of temperature often with maximal values in the biologically relevant temperature range and that activation energies are temperature dependent. We show that the temperature dependence of metabolic rate in ectotherms is well described by an enzyme-assisted Arrhenius (EAAR) model that accounts for the temperature-dependent contribution of enzymes to decreasing the activation energy required for reactions to occur. The model is mechanistically derived using the thermodynamic rules that govern protein stability. We contrast our model with other unimodal functions that also can be used to describe the temperature dependence of metabolic rate to show how the EAAR model provides an important advance over previous work. We fit the EAAR model to metabolic rate data for a variety of taxa to demonstrate the model’s utility in describing metabolic rate TPCs while revealing significant differences in thermodynamic properties across species and acclimation temperatures. Our model advances our ability to understand the metabolic and ecological consequences of increases in the mean and variance of temperature associated with global climate change. In addition, the model suggests avenues by which organisms can acclimate and adapt to changing thermal environments. Furthermore, the parameters in the EAAR model generate links between organismal level performance and underlying molecular processes that can be tested for in future work

COMPARISON of DIVER-OPERATED UNDERWATER PHOTOGRAMMETRIC SYSTEMS for CORAL REEF MONITORING

Underwater photogrammetry is a well-established technique for measuring and modelling the subaquatic environment in fields ranging from archaeology to marine ecology. While for simple tasks the acquisition and processing of images have become straightforward, applications requiring relative accuracy better then 1:1000 are still considered challenging. This study focuses on the metric evaluation of different off-the-shelf camera systems for making high resolution and high accuracy measurements of coral reefs monitoring through time, where the variations to be measured are in the range of a few centimeters per year. High quality and low-cost systems (reflex and mirrorless vs action cameras, i.e. GoPro) with multiple lenses (prime and zoom), different fields of views (from fisheye to moderate wide angle), pressure housing materials and lens ports (dome and flat) are compared. Tests are repeated at different camera to object distances to investigate distance dependent induced errors and assess the accuracy of the photogrammetrically derived models. An extensive statistical analysis of the different systems is performed and comparisons against reference control point measured through a high precision underwater geodetic network are reported

Planar Drawings of Fixed-Mobile Bigraphs

A fixed-mobile bigraph G is a bipartite graph such that the vertices of one partition set are given with fixed positions in the plane and the mobile vertices of the other part, together with the edges, must be added to the drawing. We assume that G is planar and study the problem of finding, for a given k >= 0, a planar poly-line drawing of G with at most k bends per edge. In the most general case, we show NP-hardness. For k=0 and under additional constraints on the positions of the fixed or mobile vertices, we either prove that the problem is polynomial-time solvable or prove that it belongs to NP. Finally, we present a polynomial-time testing algorithm for a certain type of "layered" 1-bend drawings