69 research outputs found
Arbeitsmarktintegration von GeflĂĽchteten : eine Herausforderung vor Ort
Im Rhein-Neckar-Kreis finden sich vielfältige Akteure und Netzwerke, die die Arbeitsmarktintegration von Geflüchteten unterstützen. Auch wenn die konkreten Maßnahmen zur Arbeitsmarktintegration, die sich hier als erfolgreich erwiesen haben, kommunal spezifisch sind, so zeigen die Teilstudien zur Arbeitsmarktintegration im Rhein-Neckar-Kreis doch, dass für eine erfolgreiche
Integration eine gute Passung mit den lokalen Bedingungen förderlich ist. Entscheidend sind die kommunalen Vernetzungs- und Unterstützungsstrukturen unter Berücksichtigung der Leistungen, Aufgaben und Möglichkeiten aller beteiligten Akteure. Die systematische Zusammenarbeit von Praxis und Wissenschaft im Rahmen des Reallabors Asylsuchende in der Rhein-Neckar-Region soll dazu beitragen, die Komplexität von Netzwerken und Herausforderungen vor Ort besser zu
verstehen und damit die Integration zu befördern
Selective metallization of polymers: surface activation of polybutylene terephthalate (PBT) assisted by picosecond laser pulses
Considerations for preparing a randomized population health intervention trial: lessons from a South African–Canadian partnership to improve the health of health workers
Background: Community-based cluster-randomized controlled trials (RCTs) are increasingly being conducted to address pressing global health concerns. Preparations for clinical trials are well-described, as are the steps for multi-component health service trials. However, guidance is lacking for addressing the ethical and logistic challenges in (cluster) RCTs of population health interventions in low- and middle-income countries. Objective: We aimed to identify the factors that population health researchers must explicitly consider when planning RCTs within North–South partnerships. Design: We reviewed our experiences and identified key ethical and logistic issues encountered during the pre-trial phase of a recently implemented RCT. This trial aimed to improve tuberculosis (TB) and Human Immunodeficiency Virus (HIV) prevention and care for health workers by enhancing workplace assessment capability, addressing concerns about confidentiality and stigma, and providing onsite counseling, testing, and treatment. An iterative framework was used to synthesize this analysis with lessons taken from other studies. Results: The checklist of critical factors was grouped into eight categories: 1) Building trust and shared ownership; 2) Conducting feasibility studies throughout the process; 3) Building capacity; 4) Creating an appropriate information system; 5) Conducting pilot studies; 6) Securing stakeholder support, with a view to scale-up; 7) Continuously refining methodological rigor; and 8) Explicitly addressing all ethical issues both at the start and continuously as they arise. Conclusion: Researchers should allow for the significant investment of time and resources required for successful implementation of population health RCTs within North–South collaborations, recognize the iterative nature of the process, and be prepared to revise protocols as challenges emerge
Reallabor Asylsuchende in der Rhein-Neckar-Region: Vielfalt an Problemen - Vielfalt an Lösungen
Deutschland steht vor der Aufgabe, viele Geflüchtete unterzubringen und ihnen neue Lebensperspektiven zu eröffnen. Die Menschen, die in den vergangenen Jahren gekommen sind, um Schutz zu suchen, sind keine homogene Gruppe. Sie unterscheiden sich nach Geschlecht, Alter, Herkunft, kulturellem Hintergrund, Bildung, Arbeitserfahrung, Sprachkompetenz, Migrations- und Fluchterfahrung, Zukunftsentwürfen und vielerlei mehr. Standardmaßnahmen für alle laufen so oftmals ins Leere, Ressourcen werden schlecht genutzt und Chancen verschenkt
EEG Data Quality: Determinants and Impact in a Multicenter Study of Children, Adolescents, and Adults with Attention-Deficit/Hyperactivity Disorder (ADHD)
Electroencephalography (EEG) represents a widely established method for assessing altered and typically developing brain function. However, systematic studies on EEG data quality, its
correlates, and consequences are scarce. To address this research gap, the current study focused on
the percentage of artifact-free segments after standard EEG pre-processing as a data quality index.
We analyzed participant-related and methodological influences, and validity by replicating landmark
EEG effects. Further, effects of data quality on spectral power analyses beyond participant-related
characteristics were explored. EEG data from a multicenter ADHD-cohort (age range 6 to 45 years),
and a non-ADHD school-age control group were analyzed (ntotal = 305). Resting-state data during
eyes open, and eyes closed conditions, and task-related data during a cued Continuous Performance
Task (CPT) were collected. After pre-processing, general linear models, and stepwise regression
models were fitted to the data. We found that EEG data quality was strongly related to demographic
characteristics, but not to methodological factors. We were able to replicate maturational, task,
and ADHD effects reported in the EEG literature, establishing a link with EEG-landmark effects.
Furthermore, we showed that poor data quality significantly increases spectral power beyond effects of maturation and symptom severity. Taken together, the current results indicate that with
a careful design and systematic quality control, informative large-scale multicenter trials characterizing neurophysiological mechanisms in neurodevelopmental disorders across the lifespan are
feasible. Nevertheless, results are restricted to the limitations reported. Future work will clarify
predictive value
A Multilaboratory Comparison of Calibration Accuracy and the Performance of External References in Analytical Ultracentrifugation
Analytical ultracentrifugation (AUC) is a first principles based method to determine absolute sedimentation coefficients and buoyant molar masses of macromolecules and their complexes, reporting on their size and shape in free solution. The purpose of this multi-laboratory study was to establish the precision and accuracy of basic data dimensions in AUC and validate previously proposed calibration techniques. Three kits of AUC cell assemblies containing radial and temperature calibration tools and a bovine serum albumin (BSA) reference sample were shared among 67 laboratories, generating 129 comprehensive data sets. These allowed for an assessment of many parameters of instrument performance, including accuracy of the reported scan time after the start of centrifugation, the accuracy of the temperature calibration, and the accuracy of the radial magnification. The range of sedimentation coefficients obtained for BSA monomer in different instruments and using different optical systems was from 3.655 S to 4.949 S, with a mean and standard deviation of (4.304 ± 0.188) S (4.4%). After the combined application of correction factors derived from the external calibration references for elapsed time, scan velocity, temperature, and radial magnification, the range of s-values was reduced 7-fold with a mean of 4.325 S and a 6-fold reduced standard deviation of ± 0.030 S (0.7%). In addition, the large data set provided an opportunity to determine the instrument-to-instrument variation of the absolute radial positions reported in the scan files, the precision of photometric or refractometric signal magnitudes, and the precision of the calculated apparent molar mass of BSA monomer and the fraction of BSA dimers. These results highlight the necessity and effectiveness of independent calibration of basic AUC data dimensions for reliable quantitative studies
A multilaboratory comparison of calibration accuracy and the performance of external references in analytical ultracentrifugation.
Analytical ultracentrifugation (AUC) is a first principles based method to determine absolute sedimentation coefficients and buoyant molar masses of macromolecules and their complexes, reporting on their size and shape in free solution. The purpose of this multi-laboratory study was to establish the precision and accuracy of basic data dimensions in AUC and validate previously proposed calibration techniques. Three kits of AUC cell assemblies containing radial and temperature calibration tools and a bovine serum albumin (BSA) reference sample were shared among 67 laboratories, generating 129 comprehensive data sets. These allowed for an assessment of many parameters of instrument performance, including accuracy of the reported scan time after the start of centrifugation, the accuracy of the temperature calibration, and the accuracy of the radial magnification. The range of sedimentation coefficients obtained for BSA monomer in different instruments and using different optical systems was from 3.655 S to 4.949 S, with a mean and standard deviation of (4.304 ± 0.188) S (4.4%). After the combined application of correction factors derived from the external calibration references for elapsed time, scan velocity, temperature, and radial magnification, the range of s-values was reduced 7-fold with a mean of 4.325 S and a 6-fold reduced standard deviation of ± 0.030 S (0.7%). In addition, the large data set provided an opportunity to determine the instrument-to-instrument variation of the absolute radial positions reported in the scan files, the precision of photometric or refractometric signal magnitudes, and the precision of the calculated apparent molar mass of BSA monomer and the fraction of BSA dimers. These results highlight the necessity and effectiveness of independent calibration of basic AUC data dimensions for reliable quantitative studies
Comparison of the unsaturated cuticular hydrocarbons of male and female house crickets, Acheta domesticus (L.) (Orthoptera: Gryllidae)
Therapie des Typ-1-Diabetes – Kurzfassung der S3-Leitlinie (AWMF-Registernummer: 057-013; 2. Auflage)
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