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Derzeit existieren wegen des Einflusses sozialer Erwünschtheit nur wenige psychologische Untersuchungen über Korruption. Die bisherige Korruptionsforschung hat sich stark auf die Ausprägung des Korruptionsniveaus gestützt und nicht den Einfluss von Kultur und der dadurch bedingten Wirkungen der Denk- und Verhaltensmuster auf das Konzept und die Ausprägung von Korruption untersucht. Dies ist die Fragestellung der vorliegenden Untersuchung. Die Ergebnisse zeigen, dass unterschiedliche Konzepte von Korruption in Deutschland und Indonesien existieren. Das Konzept der Korruption bezieht sich auf die Frage, welche regelwidrigen Verhaltensweisen in welchem Ausmaß als korrupt bewertet werden. Dieses Korruptionskonzept ist von kulturellen Dimensionen wie Kollektivismus und Menschlichkeit abhängig, wobei diese auch innerhalb der Kulturen Varianzen aufweisen. Die Ergebnisse verdeutlichen die methodischen Probleme der Messung von Korruption und die Schwierigkeiten der Verifizierung einer kulturübergreifenden Konstruktvalidität.
12plusEins
(2018)
Zur Erstellung einer Normwertkurve der mütterlichen Gewichtszunahme während der Schwangerschaft wurden die Daten von 1 763 063 Frauen im Zeitraum von 1995 bis 1997 analysiert. Bei einer Spannbreite der Gewichtsveränderung von - 2 kg bis + 24 kg zeigte sich eine durchschnittliche Gewichtszunahme von 13 kg. Mit diesen Ergebnissen konnten somit erstmals Perzentilkurven der mütterlichen Gewichtszunahme für Deutschland erstellt werden.
Chitin is an abundant waste product from shrimp and mushroom industries and as such, an appropriate secondary feedstock for biotechnological processes. However, chitin is a crystalline substrate embedded in complex biological matrices, and, therefore, difficult to utilize, requiring an equally complex chitinolytic machinery. Following a bottom-up approach, we here describe the step-wise development of a mutualistic, non-competitive consortium in which a lysine-auxotrophic Escherichia coli substrate converter cleaves the chitin monomer N-acetylglucosamine (GlcNAc) into glucosamine (GlcN) and acetate, but uses only acetate while leaving GlcN for growth of the lysine-secreting Corynebacterium glutamicum producer strain. We first engineered the substrate converter strain for growth on acetate but not GlcN, and the producer strain for growth on GlcN but not acetate. Growth of the two strains in co-culture in the presence of a mixture of GlcN and acetate was stabilized through lysine cross-feeding. Addition of recombinant chitinase to cleave chitin into GlcNAc2, chitin deacetylase to convert GlcNAc2 into GlcN2 and acetate, and glucosaminidase to cleave GlcN2 into GlcN supported growth of the two strains in co-culture in the presence of colloidal chitin as sole carbon source. Substrate converter strains secreting a chitinase or a β-1,4-glucosaminidase degraded chitin to GlcNAc2 or GlcN2 to GlcN, respectively, but required glucose for growth. In contrast, by cleaving GlcNAc into GlcN and acetate, a chitin deacetylase-expressing substrate converter enabled growth of the producer strain in co-culture with GlcNAc as sole carbon source, providing proof-of-principle for a fully integrated co-culture for the biotechnological utilization of chitin.
A brief questionnaire for measuring alarm fatigue in nurses and physicians in intensive care units
(2023)
When exposed to hundreds of medical device alarms per day, intensive care unit (ICU) staff can develop “alarm fatigue” (i.e., desensitisation to alarms). However, no standardised way of quantifying alarm fatigue exists. We aimed to develop a brief questionnaire for measuring alarm fatigue in nurses and physicians. After developing a list of initial items based on a literature review, we conducted 15 cognitive interviews with the target group (13 nurses and two physicians) to ensure that the items are face valid and comprehensible. We then asked 32 experts on alarm fatigue to judge whether the items are suited for measuring alarm fatigue. The resulting 27 items were sent to nurses and physicians from 15 ICUs of a large German hospital. We used exploratory factor analysis to further reduce the number of items and to identify scales. A total of 585 submissions from 707 participants could be analysed (of which 14% were physicians and 64% were nurses). The simple structure of a two-factor model was achieved within three rounds. The final questionnaire (called Charité Alarm Fatigue Questionnaire; CAFQa) consists of nine items along two scales (i.e., the “alarm stress scale” and the “alarm coping scale”). The CAFQa is a brief questionnaire that allows clinical alarm researchers to quantify the alarm fatigue of nurses and physicians. It should not take more than five minutes to administer.
Background
A peripheral venous catheter (PVC) is the most widely used device for obtaining vascular access, allowing the administration of fluids and medication. Up to 25% of adult patients, and 50% of pediatric patients experience a first-attempt cannulation failure. In addition to patient and clinician characteristics, device features might affect the handling and success rates. The objective of the study was to compare the first-attempt cannulation success rate between PVCs with wings and a port access (Vasofix® Safety, B. Braun, abbreviated hereon in as VS) with those without (Introcan® Safety, B. Braun, abbreviated hereon in as IS) in an anesthesiological cohort.
Methods
An open label, multi-center, randomized trial was performed. First-attempt cannulation success rates were examined, along with relevant patient, clinician, and device characteristics with univariate and multivariate analyses. Information on handling and adherence to use instructions was gathered, and available catheters were assessed for damage.
Results
Two thousand three hundred four patients were included in the intention to treat analysis. First-attempt success rate was significantly higher with winged and ported catheters (VS) than with the non-winged, non-ported design (IS) (87.5% with VS vs. 78.2% with IS; PChi < .001). Operators rated the handling of VS as superior (rating of “good” or “very good: 86.1% VS vs. 20.8% IS, PChi < .001). Reinsertion of the needle into the catheter after partial withdrawal—prior or during the catheterization attempt—was associated with an increased risk of cannulation failure (7.909, CI 5.989–10.443, P < .001 and 23.023, CI 10.372–51.105, P < .001, respectively) and a twofold risk of catheter damage (OR 1.999, CI 1.347–2.967, P = .001).
Conclusions
First-attempt cannulation success of peripheral, ported, winged catheters was higher compared to non-ported, non-winged devices. The handling of the winged and ported design was better rated by the clinicians. Needle reinsertions are related to an increase in rates of catheter damage and cannulation failure.
A comparison study on modeling of clustered and overdispersed count data for multiple comparisons
(2021)
Data collected in various scientific fields are count data. One way to analyze such data is to compare the individual levels of the factor treatment using multiple comparisons. However, the measured individuals are often clustered – e.g. according to litter or rearing. This must be considered when estimating the parameters by a repeated measurement model. In addition, ignoring the overdispersion to which count data is prone leads to an increase of the type one error rate. We carry out simulation studies using several different data settings and compare different multiple contrast tests with parameter estimates from generalized estimation equations and generalized linear mixed models in order to observe coverage and rejection probabilities. We generate overdispersed, clustered count data in small samples as can be observed in many biological settings. We have found that the generalized estimation equations outperform generalized linear mixed models if the variance-sandwich estimator is correctly specified. Furthermore, generalized linear mixed models show problems with the convergence rate under certain data settings, but there are model implementations with lower implications exists. Finally, we use an example of genetic data to demonstrate the application of the multiple contrast test and the problems of ignoring strong overdispersion.
Urban greenspace has gained considerable attention during the last decades because of its relevance to wildlife conservation, human welfare, and climate change adaptation. Biodiversity loss and ecosystem degradation worldwide require the formation of new concepts of ecological restoration and rehabilitation aimed at improving ecosystem functions, services, and biodiversity conservation in cities. Although relict sites of natural and semi-natural ecosystems can be found in urban areas, environmental conditions and species composition of most urban ecosystems are highly modified, inducing the development of novel and hybrid ecosystems. A consequence of this ecological novelty is the lack of (semi-) natural reference systems available for defining restoration targets and assessing restoration success in urban areas. This hampers the implementation of ecological restoration in cities. In consideration of these challenges, we present a new conceptual framework that provides guidance and support for urban ecological restoration and rehabilitation by formulating restoration targets for different levels of ecological novelty (i.e., historic, hybrid, and novel ecosystems). To facilitate the restoration and rehabilitation of novel urban ecosystems, we recommend using established species-rich and well-functioning urban ecosystems as reference. Such urban reference systems are likely to be present in many cities. Highlighting their value in comparison to degraded ecosystems can stimulate and guide restoration initiatives. As urban restoration approaches must consider local history and site conditions, as well as citizens’ needs, it may also be advisable to focus the restoration of strongly altered urban ecosystems on selected ecosystem functions, services and/or biodiversity values. Ecosystem restoration and rehabilitation in cities can be either relatively inexpensive or costly, but even expensive measures can pay off when they effectively improve ecosystem services such as climate change mitigation or recreation. Successful re‐shaping and re-thinking of urban greenspace by involving citizens and other stakeholders will help to make our cities more sustainable in the future.
Acute post-operative delirium (POD) and long-term post-operative cognitive dysfunction (POCD) are frequent and associated with increased mortality, dependency on care giving and institutionalization rates. The POCD-related cost burden on the German long-term care insurance provides an indication for the savings potential from risk-adapted treatment schemes. Comprehensive estimates have not been assessed or published so far.
A model-based cost-analysis was designed to estimate POCD-related costs in the long-term care insurance. Comprehensive analysis of inpatient operations and procedures (OPS-codes) served as the base for case number calculations, which were then used as input to the actual cost model. POCD-incidence rates were obtained from the BioCog study. Various sensitivity analyses were performed to assess uncertainty of the model results.
Total POCD related annual costs in the German long-term care insurance account for approximately 1.6 billion EUR according to the base case of our analysis. Total annual costs for all POCD cases depend on surgery numbers, incidence rates, other assumptions, and uncertain input parameters.
The financial burden to the long-term care insurance is substantial, even in a conservative scenario of the cost model. Variability of results stems from uncertain assumptions, POCD-incidence rates and from uncertain patient numbers who are undergoing surgery and are therefore at risk to develop POCD.
Objectives
Cervical movement impairment has been identified as a core component of cervicogenic headache evaluation. However, normal range of motion values in children has been investigated rarely and no study has reported such values for the flexion–rotation test (FRT). The purpose of this study was to identify normal values and side-to-side variation for cervical spine range of motion (ROM) and the FRT, in asymptomatic children aged 6–12 years. Another important purpose was to identify the presence of pain during the FRT.
Methods
Thirty-four asymptomatic children without history of neck pain or headache (26 females and 8 males, mean age 125.38 months [SD 13.14]) were evaluated. Cervical spine cardinal plane ROM and the FRT were evaluated by a single examiner using a cervical ROM device.
Results
Values for cardinal plane ROM measures are presented. No significant gender difference was found for any ROM measure. Mean difference in ROM for rotation, side flexion, and the FRT were less than one degree. However, intra-individual variation was greater, with lower bound scores of 9.32° for rotation, 5.30° for side flexion, and 10.89° for the FRT. Multiple linear regression analysis indicates that movement in the cardinal planes only explains 19% of the variance in the FRT. Pain scores reported following the FRT were less than 2/10.
Discussion
Children have consistently greater cervical spine ROM than adults. In children, side-to-side variation in rotation and side flexion ROM and range recorded during the FRT indicates that the clinician should be cautious when using range in one direction to determine impairment in another. Range recorded during the FRT is independent of cardinal movement variables, which further adds to the importance of the FRT, as a test that mainly evaluates range of movement of the upper cervical spine.
Integration of nutritional and sustainable aspects is a complex task tackled by a few scientific concepts. They include multiple dimensions and functions of food systems trying to provide solutions for harmonic co-evolution of humanity and planet Earth. “Nutritional Sustainability” is differentiated from other concepts which combine nutrition and sustainability as it not only sets environmental sustaining capacity as a baseline level for balanced nutrition, but also aims for the search of food system driving nodes. It does not aim for the support of solutions of producing enough or more food for increasing population (sustainable nutrition), neither does it contradict other similar concepts [sustainable nutrition security, nutritional life cycle assessment (LCA)]. However, it calls for more definite estimation of the carrying capacity of the environment on personal, local, and national levels for the development of more efficient solutions of nutrition balanced in the limits of environmental carrying capacity. The review is providing a few examples of advances in nutritional science (personalized nutrition, nutrigenetics), food technology (personalized food processing, food ecodesign), and food complex systems (artificial intelligence and gut microbiome), which have a great potential to progress sustainable food systems with Nutritional Sustainability set as a guiding concept.
Currently, the treatment of musicians is an interprofessional approach. Playing-related health complaints may impact the performance of a musician. In Germany, a medical consulting hour for musicians exists, but those for athletes in sports medicine are not so common. The diagnosing and treatment procedure within the physiotherapy consultation for musicians follows a specific concept-b and requires knowledge of instruments and musician-specific complaints. Based on the consulting hour in a clinic in Osnabrueck, 614 case reports were part of this sample, of which 558 data sets were complete. The focus of the analysis is the instrument and the primary complaint. Also, the type of therapy is characterized, and the amount is calculated. Primary complaints of musicians, in general, are found most frequently in the spine and upper extremity. Musician complaints are different between instruments. Instrumentalists have a significantly higher chance to suffer from a primary complaint in the area of the upper extremity. Furthermore, the groups without an instrument (e.g., singing or dancing) are developing complaints in the anatomical area which they primarily use. Therefore, these types of therapy were used: physiotherapy, manual therapy, and osteopathy with an average of 5.9 treatment units. This study underpinned the importance of musician-specific physiotherapy as a profession to treat musicians. Also, an interdisciplinary approach is necessary to treat all aspects of complaints.
The objective of this review is a global assessment of the economics of second‐generation biorefineries, with a focus on the use of food waste and agricultural residues for chemical production by applying biotechnological processes. Analyses are conducted on feedstock and product distribution, applied economic models, and profitability figures for the period 2013–2018. In a study of 163 articles on different biorefinery systems, the production of chemicals is identified as the second major product class, after bioenergy. Bagasse and straw are frequently analyzed second‐generation feedstocks. Based on the evaluation of 22 articles, second‐generation biorefineries producing chemicals by applying biotechnological processes proves to be economically feasible. On average, both the internal rate of return (IRR) and the return on investment (ROI) are 20% and the payback period (PP) is 6 years. The cost share of feedstock in biorefineries is between 0–50%. The price of the end product and the fermentation yields have the most impact on profitability. The processing of food waste that has industrial and municipal origins appears more economical than the processing of agricultural residues. Scientists, policy makers and entrepreneurs with an appropriate risk tolerance are advised to pay particular attention to municipal food waste and the potential economic production of carboxylic acids. For various economic issues related to biorefineries, dynamic‐deterministic models are recommended, which can be extended by a stochastic model. This review provides an initial overview of the economic feasibility of second‐generation biorefineries. Further techno‐economic analyses are required to produce statistically significant statements on key profitability figures. © 2020 The Authors. Biofuels, Bioproducts, and Biorefining published by Society of Chemical Industry and John Wiley & Sons, Ltd.
Business-driven development favors the construction of process models
at different abstraction levels and by different people. As a consequence, there is a demand for consolidating different versions of process models by merging them. In this paper, we study a basic scenario, derive requirements and present a prototype for detecting and resolving changes between process models.
Transport operations are climate sensitive. Despite this, scientific literature and corporate practice present little evidence on how corporate actors use climate adaptation measures to prepare their transport operations for climate change. This paper explores two research questions: How can the acceptance among corporate decision-makers towards climate adaptation measures for their transport operations be explained? Based on the Theory of Planned Behavior and the Diffusion of Innovations we develop a theoretical framework for dealing with climate adaptation measures for transport operations (step 1). We support the use of this framework through a literature review (1989–2020) (step 2) and semi-structured interviews with German companies that have implemented best practice measures (step 3). The results show that the handling of climate adaptation measures for transport operations can be described in three acceptance phases: acceptance of attitude, action, and use. We conclude that these phases determine the approaches required for promoting climate change adaptation.
Achtsam durch den Change
(2019)
In vielen Wirtschaftsunternehmen, aber auch in Institutionen wie Schulen oder Hochschulen haben Achtsamkeitsübungen Einzug gehalten. Die Forschungsprojekte und Publikationen dazu boomen und stoßen auf großes Interesse in der Öffentlichkeit. Man will beispielsweise wissen, wie sich Achtsamkeit auf die psychische und physische Gesundheit, das Konzentrationsvermögen, die Selbstund Emotionsregulation, die Entscheidungskompetenz, das Konfliktverhalten, die soziale und moralische Kompetenz, die Kreativität oder auch die Lernfähigkeit auswirkt. Da liegt es nahe zu fragen: Kann Achtsamkeit auch für das Change Management bedeutsam sein?
Objective:
To compare the short- and long-term effects of a structural-oriented (convential) with an activity-oriented physiotherapeutic treatment in patients with frozen shoulder.
Design:
Double-blinded, randomized, experimental study.
Setting:
Outpatient clinic.
Subjects:
We included patients diagnosed with a limited range of motion and pain in the shoulder region, who had received a prescription for physiotherapy treatment, without additional symptoms of dizziness, a case history of headaches, pain and/or limited range of motion in the cervical spine and/or temporomandibular joint.
Interventions:
The study group received treatment during the performance of activities. The comparison group was treated with manual therapy and proprioceptive neuromuscular facilitation (conventional therapy). Both groups received 10 days of therapy, 30 minutes each day.
Main measures:
Range of motion, muscle function tests, McGill pain questionnaire and modified Upper Extremity Motor Activity Log were measured at baseline, after two weeks of intervention and after a three-month follow-up period without therapy.
Results:
A total of 66 patients were randomized into two groups: The activity-oriented group (n = 33, mean = 44 years, SD = 16 years) including 20 male (61%) and the structural-oriented group (n = 33, mean = 47 years, SD = 17 years) including 21 male (64%). The activity-oriented group revealed significantly greater improvements in the performance of daily life activities and functional and structural tests compared with the group treated with conventional therapy after 10 days of therapy and at the three-month follow-up (p < 0.05).
Conclusions:
Therapy based on performing activities seems to be more effective for pain reduction and the ability to perform daily life activities than conventional treatment methods.
Adaptivity is prevalent in today’s software. Mobile devices
self-adapt to available network connections, washing machines
adapt to the amount of laundry, etc. Current approaches for engineering such systems facilitate the specification of adaptivity in the analysis and the technical design. However, the modeling of platform independent models for adaptivity in the logical design phase remains rather neglected causing a gap between the analysis and the technical design phase.
To overcome this situation, we propose an approach called Adapt Cases. Adapt Cases allow the explicit modeling of adaptivity with domain-specific means, enabling adaptivity to gather attention early in the software engineering process.
Since our approach is based on the concept of use cases it
is easy adoptable in new and even running projects that
use the UML as a specification language, and additionally,
can be easily incorporated into model-based development
environments.
During gestation, the most drastic change in oxygen supply occurs with the onset of ventilation after birth. As the too early exposure of premature infants to high arterial oxygen pressure leads to characteristic diseases, we studied the adaptation of the oxygen sensing system and its targets, the hypoxia-inducible factor- (HIF-) regulated genes (HRGs) in the developing lung. We draw a detailed picture of the oxygen sensing system by integrating information from qPCR, immunoblotting, in situ hybridization, and single-cell RNA sequencing data in ex vivo and in vivo models. HIF1α protein was completely destabilized with the onset of pulmonary ventilation, but did not coincide with expression changes in bona fide HRGs. We observed a modified composition of the HIF-PHD system from intrauterine to neonatal phases: Phd3 was significantly decreased, while Hif2a showed a strong increase and the Hif3a isoform Ipas exclusively peaked at P0. Colocalization studies point to the Hif1a-Phd1 axis as the main regulator of the HIF-PHD system in mouse lung development, complemented by the Hif3a-Phd3 axis during gestation. Hif3a isoform expression showed a stepwise adaptation during the periods of saccular and alveolar differentiation. With a strong hypoxic stimulus, lung ex vivo organ cultures displayed a functioning HIF system at every developmental stage. Approaches with systemic hypoxia or roxadustat treatment revealed only a limited in vivo response of HRGs. Understanding the interplay of the oxygen sensing system components during the transition from saccular to alveolar phases of lung development might help to counteract prematurity-associated diseases like bronchopulmonary dysplasia.
Hintergrund: Geburtshilfliche Interventionen nehmen weltweit zu, auch in Deutschland. Um deren Zahl zu reduzieren entstehen verschiedene Ansätze zur Förderung der normalen Geburt, so auch der deutsche „Expertinnenstandard Förderung der physiologischen Geburt“. Unter anderem wird darin eine Hebammensprechstunde gefordert. Inwieweit Hebammensprechstunden in Einrichtungen, die den Expertinnenstandard eingeführt haben, implementiert sind und ob sie in ihrer Ausgestaltung den Empfehlungen, so wie sie von den Entwicklerinnen intendiert waren (Adhärenz), folgen, ist bisher nicht bekannt. Ziel dieser Studie ist es, Analysemerkmale für die Hebammensprechstunde zu entwickeln, die Zielgruppe und Inhalte zu identifizieren und die Adhärenz zu untersuchen.
Methode: Eine Delphi-Befragung zur Entwicklung von Analysemerkmalen mit 3 Entwicklerinnen und eine quantitative Dokumentenanalyse der Dokumente der Hebammensprechstunden zweier Krankenhäuser wurde durchgeführt (Krankenhaus 1: n=92; Krankenhaus 2: n=62).
Ergebnisse: Sechs Merkmale (Dokumentation von „Sorgen und Ängste“, „Absprachen“, „Beratungsthemen“, „Themen, die besprochen wurden“, „Nachvollziehbarkeit der Möglichkeiten der Geburtsplanung“ und „Optionen der Geburtsplanung) wurden aus dem Expertinnenstandard identifiziert. Vor allem Erstgebärende (77,2%) nehmen die Hebammensprechstunde in Anspruch. Es zeigt sich ein breites Spektrum an Themen, die im Rahmen der Hebammensprechstunde angesprochen werden. Die Dokumente von Krankenhaus 2 belegen eine hohe Adhärenz, während die Dokumente von Krankenhaus 1 eine mittlere Adhärenz zeigen.
Schlussfolgerungen: Die Untersuchung der Adhärenz ermöglicht es Krankenhäusern, die Hebammensprechstunde auf ihre Umsetzung hin einzuschätzen. Auf Grundlage der hier vorgestellten Analyse können Anpassungen, z. B. an der Dokumentenstruktur oder den Beratungsinhalten vorgenommen werden. Im Kontext der Hebammensprechstunde besteht weiterer Forschungsbedarf zu den Implementierungsprozessen, um vorhandene Unterschiede in der Adhärenz besser zu erklären.
The increased consumption of reduced-fat or non-fat products leads to a reduced intake of fat-soluble bioactive substances, such as fat-soluble vitamins. Due to their natural role as transport systems for hydrophobic substances, casein micelles (CM) might depict a viable system. The structure of CM is characterized by a lipophilic core stabilized by an electric double layer-like structure. Modification allows accessibility of the core and, therefore, the inclusion of fat-soluble bioactive substances. Well-known modifications are pH reduction and use of rennet enzyme. A completely new procedure to modify CM structure is offered by pulsed electrical fields (PEF). The principle behind PEF is called electroporation and affects the electric double layer of CM so that it is interrupted. In this way, lipophilic substances can be incorporated into CM. In this work, we evaluated integration of β-carotene into native CM by an industry-compatible process to overcome disadvantages associated with the use of Na-caseinate and avoid great technical effort, e.g., due to treatment with high hydrostatic pressure. Our research has shown that PEF can be used for disintegration of CM and that significant amounts of β-carotene can be incorporated in CM. Furthermore, after disintegration using PEF, a combination of another PEF and thermal treatment was applied to restructure CM and trap significant amounts of β-carotene, permanently, ending up with an encapsulation efficiency of 78%.
Akademische Unternehmensgründungen besitzen für Wirtschaftswachstum und Beschäftigung
unzweifelhaft eine besondere Bedeutung. Grundlage hierfür ist eine nachhaltige Sensibilisierung für
den Gründungsgedanken und das Unternehmertum. Hinsichtlich der Anforderungen an die
Sensibilisierungsmaßnahmen besteht allerdings noch eine Forschungslücke. Der vorliegende Beitrag
beleuchtet auf Basis empirischer Untersuchungen die Frage der Sensibilisierung von
Hochschulangehörigen zum Thema „Unternehmensgründung“. Der Fokus der Betrachtungen liegt
auf den Sensibilisierungsinstrumenten, dem Zeitpunkt der Maßnahmen und den Auswirkungen auf
die Zahl der akademischen Gründungen.
Akzeptanz für Algorithmen
(2021)
Seit mehr als 20 Jahren beschäftigt sich die personaldiagnostische Forschung u. a. mit der Frage, wie Bewerberinnen und Bewerber diagnostische Verfahren der Personalauswahl bewerten. Nachfolgend wird von Ergebnissen berichtet, die sich mit der Akzeptanz von 10 Übungen bzw. Verfahren beschäftigen, die im Assessment Center zum Einsatz kommen. Die Untersuchung basiert auf sieben Assessment Centern (N = 237). Im Ergebnis zeigt sich, dass AC-Teilnehmer eine Übung umso mehr akzeptieren, je mehr sie das Verhalten des einzelnen Teilnehmers in den Vordergrund stellt und dabei Aufgaben des Berufsalltags simuliert. In Übereinstimmung mit dem Selbstwertansatz fällt die Bewertung einer Übung dabei umso positiver aus, je besser die AC-Teilnehmer nach eigener Einschätzung darin abschneiden.
Introduction: Patients undergoing revision total hip surgery (RTHS) have a high prevalence of mild and moderate preoperative anemia, associated with adverse outcomes. The aim of this study was to investigate the association of perioperative allogeneic blood transfusions (ABT) and postoperative complications in preoperatively mild compared to moderate anemic patients undergoing RTHS who did not receive a diagnostic anemia workup and treatment before surgery. Methods: We included 1,765 patients between 2007 and 2019 at a university hospital. Patients were categorized according to their severity of anemia using the WHO criteria of mild, moderate, and severe anemia in the first Hb level of the case. Patients were grouped as having received no ABT, 1–2 units of ABT, or more than 2 units of ABT. Need for intraoperative ABT was assessed in accordance with institutional standards. Primary endpoint was the compound incidence of postoperative complications. Secondary outcomes included major/minor complications and length of hospital and ICU stay. Results: Of the 1,765 patients, 31.0% were anemic of any cause before surgery. Transfusion rates were 81% in anemic patients and 41.2% in nonanemic patients. The adjusted risks for compound postoperative complication were significantly higher in patients with moderate anemia (OR 4.88, 95% CI: 1.54–13.15, p = 0.003) but not for patients with mild anemia (OR 1.93, 95% CI: 0.85–3.94, p < 0.090). Perioperative ABT was associated with significantly higher risks for complications in nonanemic patients and showed an increased risk for complications in all anemic patients. In RTHS, perioperative ABT as a treatment for moderate preoperative anemia of any cause was associated with a negative compound effect on postoperative complications, compared to anemia or ABT alone. Discussion: ABT is associated with adverse outcomes of patients with moderate preoperative anemia before RTHS. For this reason, medical treatment of moderate preoperative anemia may be considered.
Chronic illness can have a profound impact on couples’ relationships. In dealing with relational changes, new constructions and forms of relationships may arise. In the context of a larger grounded theory study on relational processes and practices in couples faced with chronic illness, this article focuses on concurrent relationships as an alternative form of relationship construction which embodies an additional relationship existing parallel to that of the couple confronted with chronic illness. Based on qualitative interviews with a subsample of five persons within the larger study, conditions for the development and characteristics of concurrent relationships are presented. From an individual and shared life questioned by chronic illness, concurrent relationships are formed in the attempt to be able to live on together in a new partner relationship and a continued care relationship. This can lead to new constructions of relationships, family life, and social relations in everyday life.
In der digitalisierten Arbeitswelt ermöglichen neue und flexible Informations- und Kommunikationstechnologien (IKT) eine raum- und zeitunabhängige Erreichbarkeit (Albers, 2018). Während die „ständige“ Erreichbarkeit öffentlich kontrovers diskutiert wird, zeigt sich im Bereich des Kommunikationsmanagements, insbesondere hinsichtlich der Untersuchung von Agenturen, eine Forschungslücke (Röttger & Zielmann, 2009). Dieser Beitrag knüpft daran an und liefert empirische sowie praxisnahe Erkenntnisse zur arbeitsbezogenen erweiterten Erreichbarkeit. Mit dem Fokus auf Mitarbeitende in Kommunikationsagenturen wurde untersucht, wie ihre Erreichbarkeit ausfällt und welche Gestaltungsansätze sich im Arbeitskontext daraus ableiten. Zu ihrer Beantwortung wurden qualitative, leitfadengestützte Interviews mit Vollzeitbeschäftigten (n= 10) aus mittelgroßen Agenturen (Größe: 20 bis 50 Beschäftigte, n= 5) durchgeführt und ausgewertet. Die Interviewstudie analysiert Ausmaß, Ursachen, individuelle und betriebliche Umgangsweisen sowie darauf aufbauende Handlungsansätze. Die Ergebnisse verdeutlichen zwei Aspekte der erweiterten Erreichbarkeit in Agenturen: Individualität und Vielfalt. Innerhalb der Untersuchung kann verdeutlicht werden, dass die Erreichbarkeit auf einer Kombination vielfältiger Ursachen beruht. Für die Gestaltung der Erreichbarkeit leiten sich daraus relevante Implikationen ab: Statt verbindlicher Vorschriften sollte ein selbstbestimmtes, flexibles Arbeiten im Vordergrund stehen.
Ambient assisted living und Pflegebedürftigkeit : wie finden Anspruch und Realität zueinander?
(2010)
Gegenstand dieses Beitrages, der auf einer Grounded Theory Studie zur Situation von Geschwistern von Kindern und Jugendlichen mit chronischer Erkrankung basiert, ist ihr Erleben von Ambivalenz und Ambiguität. Dieses dialektische Verhältnis von Gefühlen, Gedanken und Handlungen prägt die Geschwisterbeziehung und somit die Persönlichkeitsentwicklung. Ist das alltägliche Leben durch die Präsenz einer chronischen Erkrankung irritiert, verändert sich die Konstellation in den geschwisterlichen Rollen. Neben Ambivalenz- und Ambiguitätserfahrungen beschäftigt sich der Aufsatz auch mit den resultierenden Umgangs- und Bewältigungsformen der gesunden Geschwister. Ein besonderes Potential bietet in diesem Kontext die Ambiguitätstoleranz als die Fähigkeit, Widersprüche und Mehrdeutigkeit auszuhalten.
Standard extensive green roofs (EGRs) with their shallow substrate layers represent extreme sites for plant growth and therefore are planted mostly with drought-resistant species, including non-native plant species. As standard EGR substrates often lack potentially mutualistic soil microorganisms, it has been stated that inoculation with arbuscular mycorrhizal fungi (AMF) might increase plant performance and drought resistance. Aiming to support native biodiversity on EGRs, we tested whether AMF inoculation into standard green roof substrate can enhance plant performance and drought resistance of regionally occurring native dry grassland species.
The results of a pot experiment with 11 native plant species growing with and without AMF inoculation showed considerable differences in fitness-relevant plant traits. Over 88 days of moderate drought conditions, inoculated plants produced 2.5 times more above-ground biomass than control plants. In addition, the number of inflorescences on inoculated plants was significantly higher in 5 out of 7 flowering species. Under severe drought stress created by stopping the water supply, however, inoculated plants wilted on average 2.38 days earlier than control plants.
Although the underlying mechanisms of the observed results remain unresolved, AMF inoculation might help to enhance an earlier and higher seed set, facilitating the establishment of a soil seed bank, which is necessary for a self-sustaining plant population in drought-governed habitats such as EGRs.
Organic pot-based production of basil (Ocimum basilicum L.) often has lower biomass yield than conventional cultivation. Previous investigations indicate that this growth impairment is related to high ammonium (NH4+) concentrations in the growing media released by the mineralization of organic nitrogen (N) fertilizers. However, as a result of this ammonification process substrate pH may also increase. Under neutral to alkaline conditions NH4+ is converted to ammonia (NH3), which is known to be phytotoxic even at low concentrations. Therefore, we investigated the impact of both ammonical N species on basil grown in a peat substrate. In total, three fertilization pot experiments were conducted in a greenhouse in order to compare the effect of different organic base dressings [250 and 750 mg N (L substrate)-1 mainly supplied by a liquid amino acid fertilizer (AAF)] and two initial substrate pH levels (5.5 and 6.5). In two treatments, 5% (v/v) mature compost was mixed into the peat 1 day and 12–days before the substrate was used for sowing, respectively. The aim of this procedure was to stimulate nitrification in this way to reduce ammonical N concentration. Ammonia concentration in the aerial plant surrounding environment was measured by using NH3 detector tubes in combination with an open-top chamber method. The results showed that the growth of basil (number of plants, fresh matter yield, plant height) was significantly inhibited in the second and third week of cultivation by rising NH3 and NH4+ exposure, as well as by a substrate pH ≥ 7.0. These adverse effects were reduced by lowering the organic base dressing rate and adjusting the initial substrate pH to 5.5. Furthermore, the addition of mature compost to peat in combination with a 12-day storage was proven to be effective for promoting nitrification in the organically fertilized substrate. As a result, plant growth was improved by both lower NH3 and NH4+ exposure as well as a faster supply of nitrate (NO3-) as an additional N source. Using this approach, it was possible to feed organically fertilized basil right from the seedling stage with a NO3--N/NH4+-N-balanced and later on providing a predominant NO3--N supply.
Im ökologischen Anbau von Topfbasilikum treten des Öfteren Wachstums- und Qualitätsbeeinträchtigungen auf. Diese machen sich bereits an den Jungpflanzen in Form chlorotischer und nekrotischer Keimblätter bemerkbar. Nachfolgend können Infektionen mit Schwächeparasiten wie Botrytis auftreten. Im Rahmen eines Düngungsversuches sollte geklärt werden, inwieweit diese Probleme im Zusammenhang mit der Anreicherung von Ammonium stehen, welches durch die Mineralisierung organischer Dünger in das Kultursubstrat freigesetzt wird. Versuchsfaktoren waren das Ammonium-N/Nitrat-N-Verhältnis (100/0; 50/50; 0/100) und die Stickstoffkonzentration in der Nährlösung (8, 12 und 16 mmol N/L). Ammonium wurde mittels des Nitrifikationshemmstoffes 3,4-Dimethylpyrazolphosphat (DMPP) stabilisiert. Zusätzlich war in den Versuch eine organische N-Düngevariante einbezogen, die neben einer Grunddüngung mit festen Düngern (Hornspäne und DCM ECO-MIX 4) eine flüssige Nachdüngung (Organic Plant Feed) beinhaltete. Die Kultur der Pflanzen erfolgte in einem Torfsubstrat, das zu Versuchsbeginn auf pH 6,5 eingestellt war.
Mit Nitrat (NO3-) als alleiniger Stickstoffquelle zeigte Basilikum über den gesamten Kulturzeitraum ein vitales Wachstum. Ein reines Ammoniumangebot (NH4+) ging, unabhängig von der N-Stufe, mit einer geringeren Keimrate sowie mit verminderten Pflanzenhöhen- und Frischmassezuwächsen einher. Außerdem waren hier chlorotische Keimblätter und eine verringerte Turgeszenz des Sprosses zu beobachten. In der organischen N-Düngevariante blieb das Pflanzenwachstum zunächst ebenfalls hinter dem mit NO3--Angebot zurück. Des Weiteren waren hier die Schadsymptome an den Keimblättern besonders stark ausgeprägt. Im Zuge der Ammonifikation der organischen N-Dünger kam es in den ersten Versuchswochen zu einer Anreicherung von bis zu 350 mg NH4+-N/L Substrat als alleiniger mineralischer Stickstoffform. Mit fortschreitender Nitrifikation setzte dann ein stimuliertes Pflanzenwachstum ein. Zu Versuchsende wiesen die organisch gedüngten Pflanzen den höchsten NO3--Gehalt im Spross auf. Der kompakteste Wuchs und die höchste Turgeszenz der Pflanzen konnten mit ausgeglichenem NH4+/NO3--Angebot erzielt werden.