Collective skill formation regimes in times of Covid-19: a governance-focused analysis of the German dual training system

Context: Covid-19 poses major challenges for vocational education and training (VET), as VET—in contrast to general education—is closely linked to the economic system and cannot escape the impact of current economic restrictions. Additionally, strict infection control regulations, as well as temporary school and company closures, inhibit the teaching of practical skills at the workplace. Rapid action by the responsible actors is essential to ensure that VET can take place even under these difficult conditions. It can be assumed that both the complex decision-making processes and the multiplicity of actors involved in collective training systems complicate or delay the reaction to this exogenous shock. Using the example of the German dual training system, this explorative article aims to examine the ability of collective training systems to deal with the challenges posed by the pandemic. Methods: Based on a document analysis, various publications (e.g., press releases, reports) by central actors of the German dual system were reviewed, which provided information about the provision of training activities as well as the measures taken or required to counteract the pandemic-related consequences for dual apprenticeships. This corpus of literature was expanded by scientific studies and publications from national or international institutions related to VET. Following a governance-analytical and actor-centred perspective, the documents were analysed with regard to the indications they provide about the realised coordination of action between the actors, the realised processes and outcomes, as well as the levels affected within the VET system. Findings: The way of dealing with the crisis demonstrates that the German dual system is influenced by the actions of various actors at multiple levels. Actors who are involved in the decision-making processes share common interests, resulting in a strategically bound cooperation among them. However, influence or power from bottom-up seems to be rather limited, as not all of the actors considered in this study are included in essential governance processes. Despite the comprehensive reactions to the pandemic, problems and optimisation needs are also apparent, e.g. with regard to vocational orientation or the support of vocational schools. Conclusion: Despite its complexity, the dual system as a collective training model is capable of acting and adapting to face the challenges posed by the pandemic. This may also be due to the historically entrenched corporatist structures within the dual system: Even in times of crisis, the trust in this historically evolved institutional framework leads to a high degree of accountability and cooperation among the decisive actors. (DIPF/Orig.

Collective Skill Formation Regimes in Times of Covid-19: A Governance-Focused Analysis of the German Dual Training System

Context: Covid-19 poses major challenges for vocational education and training (VET), as VET - in contrast to general education - is closely linked to the economic system and cannot escape the impact of current economic restrictions. Additionally, strict infection control regulations, as well as temporary school and company closures, inhibit the teaching of practical skills at the workplace. Rapid action by the responsible actors is essential to ensure that VET can take place even under these difficult conditions. It can be assumed that both the complex decision-making processes and the multiplicity of actors involved in collective training systems complicate or delay the reaction to this exogenous shock. Using the example of the German dual training system, this explorative article aims to examine the ability of collective training systems to deal with the challenges posed by the pandemic. Methods: Based on a document analysis, various publications (e.g., press releases, reports) by central actors of the German dual system were reviewed, which provided information about the provision of training activities as well as the measures taken or required to counteract the pandemic-related consequences for dual apprenticeships. This corpus of literature was expanded by scientific studies and publications from national or international institutions related to VET. Following a governance-analytical and actor-centred perspective, the documents were analysed with regard to the indications they provide about the realised coordination of action between the actors, the realised processes and outcomes, as well as the levels affected within the VET system. Findings: The way of dealing with the crisis demonstrates that the German dual system is influenced by the actions of various actors at multiple levels. Actors who are involved in the decision-making processes share common interests, resulting in a strategically bound cooperation among them. However, influence or power from bottom-up seems to be rather limited, as not all of the actors considered in this study are included in essential governance processes. Despite the comprehensive reactions to the pandemic, problems and optimisation needs are also apparent, e.g. with regard to vocational orientation or the support of vocational schools. Conclusion: Despite its complexity, the dual system as a collective training model is capable of acting and adapting to face the challenges posed by the pandemic. This may also be due to the historically entrenched corporatist structures within the dual system: Even in times of crisis, the trust in this historically evolved institutional framework leads to a high degree of accountability and cooperation among the decisive actors

A closed circuit electro-hydraulic actuator with energy recuperation capability

The recent electrification trend in the off-road market has incentivized research towards the proposal of compact, cost-effective and energy-efficient solutions for hydraulic actuators. As a result, increased attention has been given to electro-hydraulic actuator (EHA) architectures. The paper offers a study performed on a novel closed-circuit EHA architecture with the goal to maximize the overall system efficiency while meeting or exceeding traditional off-road applications performance, thereby enabling further electrification of off-road applications. Both numerical and experimental approaches are utilized to validate the functionality of the proposed EHA circuital configuration in four quadrants. Moreover, the actuator functionality at both high and low velocities are considered, which has never been explored in the past due to the limitations on the hydraulic machine driving speed. The good match between the experimental data and the simulation results confirms the potential of the simulation model for sizing such EHA architecture for different actuator sizes, duty cycles, and performance levels

Разработка методики оптимизации данных для неразрушающего контроля прочности бетона по параметрам электрического отклика на ударное воздействие

The article presents the results of investigation to improve the method of non-destructive testing of concrete strength by the parameters of electric response to impact excitation. The Electric response parameters of concrete samples with the same composition in size 100x100x100mm were studied. It is shown that the use of linear filtering procedure reduces the variance of diagnostic electric parameter to determine the strength of concrete

Global Oceans

Global Oceans is one chapter from the State of the Climate in 2019 annual report and is avail-able from https://doi.org/10.1175/BAMS-D-20-0105.1. Compiled by NOAA’s National Centers for Environmental Information, State of the Climate in 2019 is based on contr1ibutions from scien-tists from around the world. It provides a detailed update on global climate indicators, notable weather events, and other data collected by environmental monitoring stations and instru-ments located on land, water, ice, and in space. The full report is available from https://doi.org /10.1175/2020BAMSStateoftheClimate.1

High-Frequency Dynamics of Ocean pH: A Multi-Ecosystem Comparison

The effect of Ocean Acidification (OA) on marine biota is quasi-predictable at best. While perturbation studies, in the form of incubations under elevated pCO2, reveal sensitivities and responses of individual species, one missing link in the OA story results from a chronic lack of pH data specific to a given species' natural habitat. Here, we present a compilation of continuous, high-resolution time series of upper ocean pH, collected using autonomous sensors, over a variety of ecosystems ranging from polar to tropical, open-ocean to coastal, kelp forest to coral reef. These observations reveal a continuum of month-long pH variability with standard deviations from 0.004 to 0.277 and ranges spanning 0.024 to 1.430 pH units. The nature of the observed variability was also highly site-dependent, with characteristic diel, semi-diurnal, and stochastic patterns of varying amplitudes. These biome-specific pH signatures disclose current levels of exposure to both high and low dissolved CO2, often demonstrating that resident organisms are already experiencing pH regimes that are not predicted until 2100. Our data provide a first step toward crystallizing the biophysical link between environmental history of pH exposure and physiological resilience of marine organisms to fluctuations in seawater CO2. Knowledge of this spatial and temporal variation in seawater chemistry allows us to improve the design of OA experiments: we can test organisms with a priori expectations of their tolerance guardrails, based on their natural range of exposure. Such hypothesis-testing will provide a deeper understanding of the effects of OA. Both intuitively simple to understand and powerfully informative, these and similar comparative time series can help guide management efforts to identify areas of marine habitat that can serve as refugia to acidification as well as areas that are particularly vulnerable to future ocean change

Iron Behaving Badly: Inappropriate Iron Chelation as a Major Contributor to the Aetiology of Vascular and Other Progressive Inflammatory and Degenerative Diseases

The production of peroxide and superoxide is an inevitable consequence of aerobic metabolism, and while these particular "reactive oxygen species" (ROSs) can exhibit a number of biological effects, they are not of themselves excessively reactive and thus they are not especially damaging at physiological concentrations. However, their reactions with poorly liganded iron species can lead to the catalytic production of the very reactive and dangerous hydroxyl radical, which is exceptionally damaging, and a major cause of chronic inflammation. We review the considerable and wide-ranging evidence for the involvement of this combination of (su)peroxide and poorly liganded iron in a large number of physiological and indeed pathological processes and inflammatory disorders, especially those involving the progressive degradation of cellular and organismal performance. These diseases share a great many similarities and thus might be considered to have a common cause (i.e. iron-catalysed free radical and especially hydroxyl radical generation). The studies reviewed include those focused on a series of cardiovascular, metabolic and neurological diseases, where iron can be found at the sites of plaques and lesions, as well as studies showing the significance of iron to aging and longevity. The effective chelation of iron by natural or synthetic ligands is thus of major physiological (and potentially therapeutic) importance. As systems properties, we need to recognise that physiological observables have multiple molecular causes, and studying them in isolation leads to inconsistent patterns of apparent causality when it is the simultaneous combination of multiple factors that is responsible. This explains, for instance, the decidedly mixed effects of antioxidants that have been observed, etc...Comment: 159 pages, including 9 Figs and 2184 reference

Teaching entrepreneurship to life-science students through Problem Based Learning

The study presented here investigates the question of how entrepreneurship education can be embedded into academic courses of life science students, to provide basic economic compe-tencies. From the perspective of business education, a pragmatic approach has been taken within the framework of an interventional study. This approach combines entrepreneurship education with a problem-based learning approach and the case study method. Using a framework based upon knowledge, skills and attitudes, the students' acquisition of competencies has been evalu-ated. For this purpose, a longitudinal study with two cohorts (n = 23) was conducted in 2018 and 2019, which included a knowledge test and a self-assessment. The test instrument was based on two validated tests, namely the 'Test of Economic Literacy' and 'Questions on Economic Knowledge'. In addition, qualitative reflective essays were carried out to examine the develop-ment of student's skills and attitudes. Although the knowledge test did not show any increase in students' knowledge of economics, the results of the self-assessment and the reflective essays at least indicate a positive impact of the learning environment on students' skills and attitudes. Consequently, the teaching design considered in this study may also be relevant to other studies of embedded entrepreneurship in academic courses