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Efficient Removal of Tetracycline and Bisphenol A from Water with a New Hybrid Clay/TiO₂ Composite
(2023)
New TiO₂ hybrid composites were prepared fromkaolinclay, predried and carbonized biomass, and titanium tetraisopropoxideand explored for tetracycline (TET) and bisphenol A (BPA) removalfrom water. Overall, the removal rate is 84% for TET and 51% for BPA.The maximum adsorption capacities (q (m))are 30 and 23 mg/g for TET and BPA, respectively. These capacitiesare far greater than those obtained for unmodified TiO2. Increasing the ionic strength of the solution does not change theadsorption capacity of the adsorbent. pH changes only slightly changeBPA adsorption, while a pH > 7 significantly reduces the adsorptionof TET on the material. The Brouers-Sotolongo fractal modelbest describes the kinetic data for both TET and BPA adsorption, predictingthat the adsorption process occurs via a complex mechanism involvingvarious forces of attraction. Temkin and Freundlich isotherms, whichbest fit the equilibrium adsorption data for TET and BPA, respectively,suggest that adsorption sites are heterogeneous in nature. Overall,the composite materials are much more effective for TET removal fromaqueous solution than for BPA. This phenomenon is assigned to a differencein the TET/adsorbent interactions vs the BPA/adsorbent interactions:the decisive factor appears to be favorable electrostatic interactionsfor TET yielding a more effective TET removal.
This study focuses on three key aspects: (a) crude throat swab samples in a viral transport medium (VTM) as templates for RT-LAMP reactions; (b) a biotinylated DNA probe with enhanced specificity for LFA readouts; and (c) a digital semi-quantification of LFA readouts. Throat swab samples from SARS-CoV-2 positive and negative patients were used in their crude (no cleaning or pre-treatment) forms for the RT-LAMP reaction. The samples were heat-inactivated but not treated for any kind of nucleic acid extraction or purification. The RT-LAMP (20 min processing time) product was read out by an LFA approach using two labels: FITC and biotin. FITC was enzymatically incorporated into the RT-LAMP amplicon with the LF-LAMP primer, and biotin was introduced using biotinylated DNA probes, specifically for the amplicon region after RT-LAMP amplification. This assay setup with biotinylated DNA probe-based LFA readouts of the RT-LAMP amplicon was 98.11% sensitive and 96.15% specific. The LFA result was further analysed by a smartphone-based IVD device, wherein the T-line intensity was recorded. The LFA T-line intensity was then correlated with the qRT-PCR Ct value of the positive swab samples. A digital semi-quantification of RT-LAMP-LFA was reported with a correlation coefficient of R2 = 0.702. The overall RT-LAMP-LFA assay time was recorded to be 35 min with a LoD of three RNA copies/µL (Ct-33). With these three advancements, the nucleic acid testing-point of care technique (NAT-POCT) is exemplified as a versatile biosensor platform with great potential and applicability for the detection of pathogens without the need for sample storage, transportation, or pre-processing.
The color red has been implicated in a variety of social processes, including those involving mating. While previous research suggests that women sometimes wear red strategically to increase their attractiveness, the replicability of this literature has been questioned. The current research is a reasonably powered conceptual replication designed to strengthen this literature by testing whether women are more inclined to display the color red 1) during fertile (as compared with less fertile) days of the menstrual cycle, and 2) when expecting to interact with an attractive man (as compared with a less attractive man and with a control condition). Analyses controlled for a number of theoretically relevant covariates (relationship status, age, the current weather). Only the latter hypothesis received mixed support (mainly among women on hormonal birth control), whereas results concerning the former hypothesis did not reach significance. Women (N = 281) displayed more red when expecting to interact with an attractive man; findings did not support the prediction that women would increase their display of red on fertile days of the cycle. Findings thus suggested only mixed replicability for the link between the color red and psychological processes involving romantic attraction. They also illustrate the importance of further investigating the boundary conditions of color effects on everyday social processes.
The CH2Cl2/MeOH (1:1) extract of Zanthoxylum holstzianum stem bark showed good antiplasmodial activity (IC50 2.5 +/- 0.3 and 2.6 +/- 0.3 mu g/mL against the W2 and D6 strains of Plasmodium falciparum, respectively). From the extract five benzophenanthridine alkaloids [8-acetonyldihydrochelerythrine (1), nitidine (2), dihydrochelerythine (3), norchelerythrine (5), arnottianamide (8)]; a 2-quinolone alkaloid [N-methylflindersine (4)]; a lignan [4,4 '-dihydroxy-3,3 '-dimethoxylignan-9,9 '-diyl diacetate (7)] and a dimer of a benzophenanthridine and 2-quinoline [holstzianoquinoline (6)] were isolated. The CH2Cl2/MeOH (1:1) extract of the root bark afforded 1, 3-6, 8, chelerythridimerine (9) and 9-demethyloxychelerythrine (10). Holstzianoquinoline (6) is new, and is the second dimer linked by a C-C bond of a benzophenanthridine and a 2-quinoline reported thus far. The compounds were identified based on spectroscopic evidence. Amongst five compounds (1-5) tested against two strains of P. falciparum, nitidine (IC50 0.11 +/- 0.01 mu g/mL against W2 and D6 strains) and norchelerythrine (IC50 value of 0.15 +/- 0.01 mu g/mL against D6 strain) were the most active.
Sich mit dem eigenen Denken und Handeln reflexiv auseinanderzusetzen ist ein zentrales Element im Selbstreifungsprozess von Lehrkräften im Studium, über die Ausbildung bis hin zur Lehrer:innentätigkeit im Alltag. Der Workshop ermöglichte Zugänge zur selbstreflexiven Auseinandersetzung mit den eigenen Handlungsmustern mithilfe vom Autor (weiter)entwickelter Coachingtools, die im Rahmen der seminaristischen Lehrer:innenbildung in der zweiten Phase konzipiert und erprobt wurden.
Innovat MOOC
(2023)
The COVID-19 pandemic has revealed the importance for university teachers to have adequate pedagogical and technological competences to cope with the various possible educational scenarios (face-to-face, online, hybrid, etc.), making use of appropriate active learning methodologies and supporting technologies to foster a more effective learning environment. In this context, the InnovaT project has been an important initiative to support the development of pedagogical and technological competences of university teachers in Latin America through several trainings aiming to promote teacher innovation. These trainings combined synchronous online training through webinars and workshops with asynchronous online training through the MOOC “Innovative Teaching in Higher Education.” This MOOC was released twice. The first run took place right during the lockdown of 2020, when Latin American teachers needed urgent training to move to emergency remote teaching overnight. The second run took place in 2022 with the return to face-to-face teaching and the implementation of hybrid educational models. This article shares the results of the design of the MOOC considering the constraints derived from the lockdowns applied in each country, the lessons learned from the delivery of such a MOOC to Latin American university teachers, and the results of the two runs of the MOOC.
Das Spannungsverhältnis zwischen Meinungsfreiheit und allgemeinem Persönlichkeitsrecht hat das Bundesverfassungsgericht seit Jahrzehnten und wiederholt beschäftigt. Insbesondere in den letzten drei Jahren hatte sich das Gericht erneut intensiv damit zu befassen, einen angemessenen Ausgleich zwischen den sich gegenüberstehenden Grundrechtspositionen zu formulieren. Der Beitrag analysiert überblicksartig, inwieweit es in seinen neueren Entscheidungen seine bisherige Rechtsprechung fortgeführt, ergänzt oder gar nachjustiert hat.
Der Text analysiert den Gesetzesentwurf des Kriminalpolitischen Kreises zur Regelung des Notwehrexzesses und des Putativnotwehrexzesses, veröffentlicht unter Hoven/Mitsch in GA 2023, S. 241 ff., ausgehend vom aktuellen Diskussionsstand in Rechtsprechung und Literatur. Im Schwerpunkt widmet er sich dem Anwendungsbereich des Regelungsvorschlags, insbesondere der Reichweite des intensiven Notwehrexzesses, der Erfassung des extensiven Notwehrexzesses sowie den Voraussetzungen eines entschuldigenden Putativnotwehrexzesses. Er beruht auf einem Kommentar, den die Verfasserin im Juni 2023 auf dem Online-Workshop „Ein neues Konzept der Notwehr“ des kriminalpolitischen Kreises gehalten hat. Der Vortragsstil wurde beibehalten.
Animal Welfare Versus Commercial Animal Use. Commercial Use of Animals Outside Agriculture: The forms of commercial animal use beyond agriculture are diverse. This includes, for example, circuses and working with film animals. However, the associated animal welfare problems have so far not been discussed in great detail. The authorities work mainly with non-binding expert opinions instead of legal regulations. The various instruments of the executive branch in this area will be dealt with, as well as possible new perspectives for animal protection law - and its limits.
Thomas Brehl (1957–2010)
(2023)
In a comparison of three human service organisations in which the human body plays a key role, we examine how organisations regulate religious body practices. We concentrate on Muslim norms of dressing and undressing as a potential focal point of cultural and religious diversity. Inspired by Ray’s (2019) idea of racialized organizations, we assume that state-run organizations in Germany are characterized by a strong commitment to religious tolerance and non-discrimination but also marked by anti- Muslim sentiment prevalent among the German population. Our study looks for mechanism that explain how Human Service Organizations accommodate Muslim body practices. It draws on qualitative empirical data collected in state-run hospitals, schools and swimming pools in Germany. Our analyses show that the organizations draw on formal and informal rules at the organizational level to accommodate Islam. We identify five general organizational mechanisms that may hinder Muslim accommodation in human service organizations. In particular, we see a risk of decoupling between the expectation of religious tolerance and processes that lead to informal discrimination, driven mainly by the difficulty of controlling group dynamics among users.
Renewable energy changes the geopolitics of energy: whereas access to fossil fuel resources were key in the past, control over technology and industry will be key in the future. Consequently, different scholars have predicted that a growing focus on renewables will increase or decrease conflict in the energy sector, with no consensus on which is most likely. Here, we investigate the degree of conflict in renewable energy technology (RET) trade by analyzing data on 7041 trade conflicts 1995–2020, guided by two sets of theory-driven hypotheses. We show that RET trade is associated with more, longer, and more intense trade conflicts than other trade conflicts for 1995–2016. This supports the neorealist, geo-economic view of countries being willing to risk conflict to increase their share of a market rather than avoiding conflicts to increase the overall market size. It also contradicts the view that renewables will reduce conflict: at least in the past and regarding trade, it has increased rather than decreased conflict. For 2017–2020, this trend is reversed and RET trade became significantly less conflictive than other trade. Our findings imply that improved conflict-resolution institutions for RET are needed. We also suggest establishing specific institutions to govern trade in immature technologies.
The oil palm (Elaeis guineensis Jacq.) produces a large amount of oil from the fruit. However, increasing the oil production in this fruit is still challenging. A recent study has shown that starch metabolism is essential for oil synthesis in fruit-producing species. Therefore, the transcriptomic analysis by RNA-seq was performed to observe gene expression alteration related to starch metabolism genes throughout the maturity stages of oil palm fruit with different oil yields. Gene expression profiles were examined with three different oil yields group (low, medium, and high) at six fruit development phases (4, 8, 12, 16, 20, and 22 weeks after pollination). We successfully identified and analyzed differentially expressed genes in oil palm mesocarps during development. The results showed that the transcriptome profile for each developmental phase was unique. Sucrose flux to the mesocarp tissue, rapid starch turnover, and high glycolytic activity have been identified as critical factors for oil production in oil palms. For starch metabolism and the glycolytic pathway, we identified specific gene expressions of enzyme isoforms (isozymes) that correlated with oil production, which may determine the oil content. This study provides valuable information for creating new high-oil-yielding palm varieties via breeding programs or genome editing approaches.
Metabolic engineering of microalgae offers a promising solution for sustainable biofuel production, and rational design of engineering strategies can be improved by employing metabolic models that integrate enzyme turnover numbers. However, the coverage of turnover numbers for Chlamydomonas reinhardtii, a model eukaryotic microalga accessible to metabolic engineering, is 17-fold smaller compared to the heterotrophic cell factory Saccharomyces cerevisiae. Here we generate quantitative protein abundance data of Chlamydomonas covering 2337 to 3708 proteins in various growth conditions to estimate in vivo maximum apparent turnover numbers. Using constrained-based modeling we provide proxies for in vivo turnover numbers of 568 reactions, representing a 10-fold increase over the in vitro data for Chlamydomonas. Integration of the in vivo estimates instead of in vitro values in a metabolic model of Chlamydomonas improved the accuracy of enzyme usage predictions. Our results help in extending the knowledge on uncharacterized enzymes and improve biotechnological applications of Chlamydomonas.
Droughts in São Paulo
(2023)
Literature has suggested that droughts and societies are mutually shaped and, therefore, both require a better understanding of their coevolution on risk reduction and water adaptation. Although the Sao Paulo Metropolitan Region drew attention because of the 2013-2015 drought, this was not the first event. This paper revisits this event and the 1985-1986 drought to compare the evolution of drought risk management aspects. Documents and hydrological records are analyzed to evaluate the hazard intensity, preparedness, exposure, vulnerability, responses, and mitigation aspects of both events. Although the hazard intensity and exposure of the latter event were larger than the former one, the policy implementation delay and the dependency of service areas in a single reservoir exposed the region to higher vulnerability. In addition to the structural and non-structural tools implemented just after the events, this work raises the possibility of rainwater reuse for reducing the stress in reservoirs.
Editorial
(2023)
Objective
Leaders differ in their personalities from non-leaders. However, when do these differences emerge? Are leaders "born to be leaders" or does their personality change in preparation for a leadership role and due to increasing leadership experience?
Method
Using data from the German Socio-Economic Panel Study, we examined personality differences between leaders (N = 2683 leaders, women: n = 967; 36.04%) and non-leaders (N = 33,663) as well as personality changes before and after becoming a leader.
Results
Already in the years before starting a leadership position, leaders-to-be were more extraverted, open, emotionally stable, conscientious, and willing to take risks, felt to have greater control, and trusted others more than non-leaders. Moreover, personality changed in emergent leaders: While approaching a leadership position, leaders-to-be (especially men) became gradually more extraverted, open, and willing to take risks and felt to have more control over their life. After becoming a leader, they became less extraverted, less willing to take risks, and less conscientious but gained self-esteem.
Conclusions
Our findings suggest that people are not simply "born to be leaders" but that their personalities change considerably in preparation for a leadership role and due to leadership experience. Some changes are transient, but others last for a long time.
Digitalization, as well as sustainability, are gaining increased relevance and have attracted significant attention in research and practice. However, the research already published about this topic examining digitalization in the retail sector does not consider the acceptance of related innovations, nor their impact on sustainability. Therefore, this article critically analyzes the acceptance of customers towards digital technologies in fashion stores as well as their impact on sustainability in the textile industry. The comprehensive analysis of the literature and the current state of research provide the basis of this paper. Theoretical models, such as the Technology-Acceptance-Model (TAM) and the Unified Theory of Acceptance and Use of Technology 2 (UTAUT 2) enable the evaluation of expectations and acceptance, as well as the assessment of possible inhibitory factors for the subsequent descriptive and statistical examination of the acceptance of digital technologies in fashion stores. The research on this subject was examined in a quantitative way. The key findings show that customers do accept digital technologies in fashion stores. The final part of this contribution describes the innovative Digitalization 4 Sustainability Framework which shows that digital technologies at the point of sale (PoS) in fashion stores could have a positive impact on sustainability. Overall, this paper shows that it is particularly important for fashion stores to concentrate on their individual strengths and customer needs as well as to indicate a more sustainable way by using digital technologies, in order to achieve added value for the customers and to set themselves apart from the competition while designing a more sustainable future. Moreover, fashion stores should make it a point of their honor to harness the power of digitalization for sake of sustainability and economic value creation.
Ausgehend von der Diskussion um die Zentralität von Reflexionen in der Lehrkräftebildung wird die Vielschichtigkeit des Konstrukts Reflexion kritisch beleuchtet. Es wird darin einerseits ausgeführt, welche möglichen Konsequenzen die oft fehlende Trennschärfe des Reflexionsbegriffs haben kann. Ein Augenmerk wird dabei auch auf Bereitschaft zur Reflexion gelegt, z. B. in der Frage, ob es nicht sinnvoll ist, Reflexionen in bestimmten Situationen absichtsvoll zu vermeiden. Andererseits wird aufgezeigt, dass dem Reflektieren im Professionalisierungsprozess eine doppelte Funktion zukommt: Lernen von Reflexion und Lernen durch Reflexion; das Reflektieren ist also sowohl ein Mittel zur Erreichung spezifischer Professionalisierungsziele als auch ein eigenständiges Professionalisierungsziel. Im Beitrag wird zudem an verschiedenen Stellen auf die Herausforderungen eingegangen, die sich aus den jeweiligen Überlegungen für Forschung und Lehre ergeben.
Lehrkräfte aller Fächer benötigen informatische Kompetenzen, um der wachsenden Alltagsrelevanz von Informatik und aktuell gültigen Lehrplänen gerecht zu werden. Beispielsweise verweist in Sachsen der Lehrplan für das Fach Gemeinschaftskunde, Rechtserziehung und Wirtschaft am Gymnasium mit dem für die Jahrgangsstufe 11 vorgesehenem Thema „Digitalisierung und sozialer Wandel“ auf Künstliche Intelligenz (KI) und explizit auf die Bedeutung der informatischen Bildung. Um die nötigen informatischen Grundlagen zu vermitteln, wurde für Lehramtsstudierende des Faches Politik ein Workshop erarbeitet, der die Grundlagen der Funktionsweise von KI anhand von überwachtem maschinellen Lernen in neuronalen Netzen vermittelt. Inhalt des Workshops ist es, mit Bezug auf gesellschaftliche Implikationen wie Datenschutz bei Trainingsdaten und algorithmic bias einen informierten Diskurs zu politischen Themen zu ermöglichen. Ziele des Workshops für Lehramtsstudierende mit dem Fach Politik sind: (1) Aufbau informatischer Kompetenzen in Bezug zum Thema KI, (2) Stärkung der Diskussionsfähigkeiten der Studierenden durch passende informatische Kompetenzen und (3) Anregung der Studierenden zum Transfer auf passende Themenstellungen im Politikunterricht. Das Evaluationskonzept umfasst eine Pre-Post-Befragung zur Zuversicht zur Vermittlungskompetenz unter Bezug auf maschinelles Lernen in neuronalen Netzen im Unterricht, sowie die Analyse einer abschließenden Diskussion. Für die Pre-Post-Befragung konnte eine Steigerung der Zuversicht zur Vermittlungskompetenz beobachtet werden. Die Analyse der Diskussion zeigte das Bewusstsein der Alltagsrelevanz des Themas KI bei den Teilnehmenden, aber noch keine Anwendung der informatischen Inhalte des Workshops zur Stützung der Argumente in der Diskussion.
Kinder mit internalisierenden Problemen erleben täglich herausfordernde akademische sowie soziale Situationen im Schulkontext. Dabei ist entscheidend, dass Lehrkräfte in der Lage sind diese Kinder zu identifizieren, um pädagogisch adäquat handeln zu können. Aufgrund der nach innen gerichteten Symptome stellt das Erkennen internalisierender Probleme eine große Herausforderung dar. Zur Diagnostik werden vorwiegend standardisierte Fragebögen eingesetzt, welche den Schulkontext sowie spezifische Altersgruppen und die damit einhergehende Veränderlichkeit von Emotionswahrnehmungen der betroffenen Kinder nur unzureichend berücksichtigen. Dieser Beitrag präsentiert die Ergebnisse einer Interviewstudie und diskutiert den Einsatz von Interviews als Methode zur Identifikation emotional relevanter Situationen aus der Perspektive von Kindern. Die Ergebnisse sollen der Ableitung alters- und kontextspezifischer Items dienen, um die Diagnostik internalisierender Schwierigkeiten weiterzuentwickeln.
Higher eco-efficiency will not be enough to slow global warming caused by climate change. To keep global warming to 2 degrees, people also need to reduce their consumption. At present, however, many who would be able to do so seem unwilling to comply. Given the threats of a runaway climate change, urgent measures are needed to promote less personal consumption. This study, therefore, examines whether social marketing consume-less appeals can be used to encourage consumers to voluntarily abstain from consumption. As part of an online experiment with nearly 2000 randomly sampled users of an online platform for sustainable consumption, we tested the effectiveness of five different “consume-less” appeals based on traditional advertising formats (including emotional, informational, and social claims). The study shows that consume-less appeals are capable of limiting personal desire to buy. However, significant differences in the effectiveness of the appeal formats used in this study were observed. In addition, we found evidence of rebound effects, which leads us to critically evaluate the overall potential of social marketing to promote more resource-conserving lifestyles. While commercial consumer-free appeals have previously been studied (e.g., Patagonia’s “Don’t Buy This Jacked”), this study on the effectiveness of non-commercial consume-free appeals is novel and provides new insights.
Consume-less appeals in social marketing can help reduce the lavish consumption in wealthy countries, which poses a major threat to the climate. This study experimentally examines the effectiveness of three different types of consume-less appeals (informative, social normative, and emotional appeals) on participants’ actual spending levels during a real shopping trip compared to a control group (no appeal). In addition, the study tests whether these appeals evoke negative rebounds (in terms of post-purchase climate donation) or positive rebounds (in terms of accepting post-purchase material giveaways). A field experiment in a grocery store in Germany with 170 participants shows that social normative and the emotional appeals reduce actual shopping spending. Informative and social normative appeals increase donations, and emotional appeals reduce the items of taken giveaways. The findings further support certain indirect impacts of the consume-less appeals on rebounds in terms of spending levels.
Purpose
Because steadily growing consumption is not beneficial for nature and climate and is not the same as increasing well-being, an anti-consumerism movement has formed worldwide. The renouncement of dispensable consumption will, however, only establish itself as a significant lifestyle if consumers do not perceive reduced consumption as a personal sacrifice. Since prior research has not yielded a consistent understanding of the relationship between anti-consumption and personal well-being, this paper aims to examine three factors about which theory implies that they may moderate this relationship: decision-control empowerment, market-control empowerment and the value of materialism.
Design/methodology/approach
The analysis is based on data from a large-scale, representative online survey (N = 1,398). Structural equation modelling with latent interaction effects is used to test how three moderators (decision-control empowerment, market-control empowerment and materialism) affect the relationship amongst four types of anti-consumption (e.g. voluntary simplicity) and three different well-being states (e.g. subjective well-being).
Findings
While both dimensions of empowerment almost always directly promote consumer well-being, significant moderation effects are present in only a few but meaningful cases. Although the materialism value tends to reduce consumers’ well-being, it improves the well-being effect of two anti-consumption styles.
Research limitations/implications
Using only one sample from a wealthy country is a limitation of the study. Researchers should replicate the findings in different nations and cultures.
Practical implications
Consumer affairs practitioners and commercial marketing for sustainably produced, high-quality and long-lasting goods can benefit greatly from these findings.
Social implications
This paper shows that sustainable marketing campaigns can more easily motivate consumers to voluntarily reduce their consumption for the benefit of society and the environment if a high level of market-control empowerment can be communicated to them.
Originality/value
This study provides differentiated new insights into the roles of consumer empowerment, i.e. both decision-control empowerment and market-control empowerment, and the value of materialism to frame specific relationships between different anti-consumption types and various well-being states.
Introduction
Elderly patients after hospitalisation for acute events on account of age-related diseases (eg, joint or heart valve replacement surgery) are often characterised by a remarkably reduced functional health. Multicomponent rehabilitation (MR) is considered an appropriate approach to restore the functioning of these patients. However, its efficacy in improving functioning-related outcomes such as care dependency, activities of daily living (ADL), physical function and health-related quality of life (HRQL) remains unclarified. We outline the research framework of a scoping review designed to map the available evidence of the effects of MR on the independence and functional capacity of elderly patients hospitalised for age-related diseases in four main medical specialties beyond geriatrics.
Methods and analysis
The biomedical databases (PubMed, Cochrane Library, ICTRP Search Platform, ClinicalTrials) and additionally Google Scholar will be systematically searched for studies comparing centre-based MR with usual care in patients ≥75 years of age, hospitalised for common acute events due to age-related diseases (eg, joint replacement, stroke) in one of the specialties of orthopaedics, oncology, cardiology or neurology. MR is defined as exercise training and at least one additional component (eg, nutritional counselling), starting within 3 months after hospital discharge. Randomised controlled trials as well as prospective and retrospective controlled cohort studies will be included from inception and without language restriction. Studies investigating patients <75 years, other specialties (eg, geriatrics), rehabilitation definition or differently designed will be excluded. Care dependency after at least a 6-month follow-up is set as the primary outcome. Physical function, HRQL, ADL, rehospitalisation and mortality will be additionally considered. Data for each outcome will be summarised, stratified by specialty, study design and type of assessment. Furthermore, quality assessment of the included studies will be performed.
Ethics and dissemination
Ethical approval is not required. Findings will be published in a peer-reviewed journal and presented at national and/or international congresses.
Atwood analyzes the effects of the 1963 U.S. measles vaccination on long-run labor market outcomes, using a generalized difference-in-differences approach. We reproduce the results of this paper and perform a battery of robustness checks. Overall, we confirm that the measles vaccination had positive labor market effects. While the negative effect on the likelihood of living in poverty and the positive effect on the probability of being employed are very robust across the different specifications, the headline estimate—the effect on earnings—is more sensitive to the exclusion of certain regions and survey years.
Wahrnehmungsvignetten als Zugang zur „Reflexiven Professionalisierung“ in der Lehrkräftebildung
(2023)
Der Beitrag handelt von einer pädagogisch-phänomenologischen Zugangsweise mit Wahrnehmungsvignetten. Diese kleinen Texte beschreiben persönliche Erfahrungen in der pädagogischen Arbeit mit Kindern und Jugendlichen. In den Phasen des Reflexionsprozesses stellen wir die Bezüge zu professioneller inklusionssensibler Haltung her, geben Denkanstöße für inklusiv-partizipatives Handeln im Unterricht und in anderen pädagogischen Kontexten, verknüpfen diese Bezüge mit erlerntem Wissen, bspw. aus Seminaren zu kindlicher Entwicklung, kindlichem Lernen und diagnostischen Fragestellungen. Die Studierenden durchlaufen verschiedene Phasen der Reflexion mit unterschiedlichen Erkenntnisqualitäten, wie Erschließen oder Bewusstmachen des Inhalts bzw. der Aussage einer Wahrnehmungsvignette, Herstellen von Zusammenhängen und Bezügen zur Anthropologie und Entwicklungspsychologie, Begriffsbildung für eine pädagogische Professionalität sowie Erkennen der Angemessenheit räumlicher Strukturen und didaktischen Handelns durch Abgleich mit pädagogischen Fachkenntnissen. Die Reflexionsprozesse unterstützen die Ausbildung einer professionellen Haltung und pädagogische Handlungssensibilität.
Das Denken von Rechtsverhältnissen her ist in der Wissenschaft vom öffentlichen Recht ein Politikum. Doch bestätigen sowohl rechtshistorische Rück-blicke als auch eine ebenenübergreifende Durchsicht des positiven Rechts die ubiquitäre Präsenz von Rechtsverhältnissen (auch) im Ius Publicum. Dieser Befund ebnet den Weg zur Programmatik der Rechtsverhältnislehre, die in vielerlei Hinsicht einen Eigen- und Mehrwert relationalen Rechtsdenkens ausweist. Das erklärt die seit geraumer Zeit (wieder) zunehmend hohe Anziehungskraft des Denkens in Rechtsverhältnissen für eine zeitgemäße Fortentwicklung der Rechtsdogmatik, in der sich wichtige Perspektivenerweiterungen und -wechsel abzeichnen.
Online businesses are increasingly relying on targeted advertisements as a revenue stream, which might lead to privacy concerns and hinder product adoption. Therefore, it is crucial for online companies to understand which types of targeted advertisements consumers will accept. In recent years, users have been increasingly targeted by political advertisements, which has caused adverse reactions in media and society. Nonetheless, few studies experimentally investigate user privacy concerns and their role in acceptance decisions in response to targeted political advertisements. To fill this gap, we explore the magnitude of privacy concerns towards targeted political ads compared to “traditional” targeting in the product context. Surprisingly, we find no notable differences in privacy concerns between these data use purposes. In the next step, user preferences over ad types are elicited with the help of a discrete choice experiment in the mobile app adoption context. Our findings suggest that while targeted political advertising is somewhat less desirable than targeted product advertising, the odds of choosing an app are statistically insignificant between two data use purposes. Together, these results contribute to a better understanding of users’ privacy concerns and preferences in the context of targeted political advertising online.
New work – old problem?
(2023)
Die Nutzung digitaler Kollaborationstools wird als Vorausset-
zung für eine postbürokratische New Work-Welt erachtet. Organisationale Digita-
lisierungsprojekte zur Einführung solcher Kollaborationssoftware sind selbst post-
bürokratisch strukturiert, d. h. sie arbeiten in crossfunktionalen und selbstorgani-
sierten Teams. Während der Kooperation mit anderen Organisationseinheiten treten
Konflikte auf, die sich dadurch verschärfen, dass sie nicht von der Hierarchie ge-
löst werden können, sondern im Sinne von New Work demokratisch ausgehandelt
werden müssen. In der Folge bedarf es alternativer formaler Strukturen, die diese
Herausforderung bewältigen.
A circulatory loop
(2023)
In the digitalization debate, gender biases in digital technologies play a significant role because of their potential for social exclusion and inequality. It is therefore remarkable that organizations as drivers of digitalization and as places for social integration have been widely overlooked so far. Simultaneously, gender biases and digitalization have structurally immanent connections to organizations. Therefore, a look at the reciprocal relationship between organizations, digitalization, and gender is needed. The article provides answers to the question of whether and how organizations (re)produce, reinforce, or diminish gender‐specific inequalities during their digital transformations. On the one hand, gender inequalities emerge when organizations use post‐bureaucratic concepts through digitalization. On the other hand, gender inequalities are reproduced when organizations either program or implement digital technologies and fail to establish control structures that prevent gender biases. This article shows that digitalization can act as a catalyst for inequality‐producing mechanisms, but also has the potential to mitigate inequalities. We argue that organizations must be considered when discussing the potential of exclusion through digitalization.
In the context of persistent images of self-perpetuated technologies, we discuss the interplay of digital technologies and organisational dynamics against the backdrop of systems theory. Building on the case of an international corporation that, during an agile reorganisation, introduced an AI-based personnel management platform, we show how technical systems produce a form of algorithmic contingency that subsequently leads to the emergence of formal and informal interaction systems. Using the concept of datafication, we explain how these interactions are barriers to the self-perpetuation of data-based decision-making, making it possible to take into consideration further decision factors and complementing the output of the platform. The research was carried out within the scope of the research project ‘Organisational Implications of Digitalisation: The Development of (Post-)Bureaucratic Organisational Structures in the Context of Digital Transformation’ funded by the German Research Foundation (DFG).
Organization not found
(2023)
Der Beitrag in der Zeitschrift GIO beschäftigt sich mit der Frage nach den Schwierigkeiten von Digitalisierungsreformen in öffentlichen Verwaltungen. Der Blick wird dafür auf Verwaltungen als Organisationen gerichtet, deren formale Strukturen die Digitalisierungsreform erschweren, da steile Hierarchien und Dienstwegeregelungen mit netzwerkartigen Projektstrukturen konfligieren, agile Arbeitsweisen der Orientierung an rechtlich legitimierten Verfahren zuwiderlaufen und das Personal nicht mit den nötigen Kompetenzen ausgestattet wird. Der organisationssensible Fokus erlaubt es, nicht nur die Probleme der Strukturen zu betrachten, sondern auch deren Funktionen für den Systembestand von Verwaltungen zu berücksichtigen. So wird gezeigt, dass etwa Dienstwegeregelungen demokratische Prozesse gewährleisten und Verantwortungsdiffusion verhindern, ihre Rechtsorientierung den Verwaltungen Legitimation und Autonomie verschafft und das Personal durch seine Regeleinhaltung funktionierende Verfahren und Objektivität gewährleistet. Diese Spannungsfelder berücksichtigend, wird daher der Vorschlag gemacht, in Reformen nicht nur ihre Optimierungsfunktion zu sehen, sondern sie als Werkzeug für ein besseres Verständnis der vorherrschenden Strukturen zu nutzen. Der Beitrag gibt abschließend Fragen an die Hand, wie man sich diesem Verständnis nähern kann.
Die Öffentlichkeitsarbeit des Council of Jews from Germany in deutsch-jüdischen Nachkriegsperiodika
(2023)
Im Beitrag wird das Lehrkonzept Reflexives Schreiben zur Förderung der Reflexionskompetenz dargestellt, das für die erste Phase der Lehrkräfteausbildung in der Fachdidaktik Deutsch entwickelt und umgesetzt wurde. Reflexives Schreiben wird hier als Schreiben aufgefasst, das sich auf das schreibende Subjekt zurückbezieht und eine Reflexion über sich selbst als Subjekt im Bildungskontext des Fachpraktikums intendiert. Die theoretische Grundlage für das Lehrkonzept bilden schreibwissenschaftliche Ansätze, die das Schreiben in seiner epistemisch-heuristischen Funktion als Denk-/Lernmedium zum Zwecke der Wissenserweiterung auffassen. Zentrale Bedeutung kommt Schreibarrangements zu, die einen situations- und subjektnahen Zugang zu den Gegenständen der Reflexion, d. i. zu Handeln und Affekten der Lehramtsstudierenden im Fachpraktikum, schaffen und mit subjektiven, (auto-)biografischen und kreativen Schreibformen der Herausforderung begegnen, sich selbst als Praktikant:in zu thematisieren. Die Schreibarrangements erweisen sich insofern als reflexionsfördernd, als sie Nähe zu eigenen Erlebnissen und Erfahrungen schaffen und zugleich kritische Distanz zu sich selbst ermöglichen.
Schutz und Schaden
(2023)