Berufsverband Information Bibliothek e.V. (BIB) Enformasyon ve Kütüphane Meslek Derneği

Riedel S. Berufsverband Information Bibliothek e.V. (BIB) Enformasyon ve Kütüphane Meslek Derneği. Yardımcı S, tran.;

Infrastruktur für elektronische Zeitschriften

Das Serviceangebot der UB, das unter der Sammelbezeichnung "Publikationsdienste" läuft, umfasst aktuell neben den Repositories BieColl, BieSOn und BiPrints u.a. auch die technische und organisatorische Unterstützung bei der Herausgabe von e-Journals. In der Veranstaltung werden die Dienstleistungen der Bibliothek anhand des erfolgreichen Pilotprojekts "Zeitschrift für Soziologie (ZfS)" dargestellt

Langzeitverfügbarkeit mit Rosetta: ein Werkstattbericht

Für wissenschaftliche Bibliotheken in NRW ist seit Anfang 2022 durch das Kulturgesetzbuch (KulturGB NRW) vorgesehen, Verfahren zur Langzeitverfügbarkeit (LZV) für digitale Bestände zu etablieren. Die Landesinitiative Langzeitverfügbarkeit (LZV.NRW) baut zu diesem Zweck eine kooperative Infrastruktur auf, die sich an alle NRW-Hochschulen und ihre Bibliotheken richtet. Die UB Bielefeld nutzt  das Angebot der Landesinitiative, das eine Lizenz für die Archivierungssoftware „Rosetta“ sowie Service und Support durch das hbz umfasst. Im Rahmen des Projekts „Langzeitverfügbarkeit mit Rosetta“ evaluieren UB und Kompetenzzentrum Forschungsdaten die Archivierungssoftware, ein kommerzielles Produkt der Fa. Ex Libris. Es wird getestet, ob die Software dazu geeignet ist, ausgewählte bibliothekseigene Bestände langzeitverfügbar zu machen. Im zweiten Schritt soll ein Dienstleistungsangebot zur Langzeitverfügbarkeit von Forschungsdaten entwickelt werden, das sich an Bielefelder Forschende richtet

Infrastruktur für elektronische Zeitschriften

Das Serviceangebot der UB, das unter der Sammelbezeichnung "Publikationsdienste" läuft, umfasst aktuell neben den Repositories BieColl, BieSOn und BiPrints u.a. auch die technische und organisatorische Unterstützung bei der Herausgabe von e-Journals. In der Veranstaltung werden die Dienstleistungen der Bibliothek anhand des erfolgreichen Pilotprojekts "Zeitschrift für Soziologie (ZfS)" dargestellt

Social Isolation and Loneliness during COVID-19 Lockdown: Associations with Depressive Symptoms in the German Old-Age Population

Lockdowns during the COVID-19 pandemic increase the risk of social isolation and loneliness, which may affect mental wellbeing. Therefore, we aimed to investigate associations between social isolation and loneliness with depressive symptoms in the German old-age population during the first COVID-19 lockdown. A representative sample of randomly selected individuals at least 65 years old (n = 1005) participated in a computer-assisted standardized telephone interview in April 2020. Sociodemographic data, aspects of the personal life situation, attitudes towards COVID-19 and standardized screening measures on loneliness (UCLA 3-item loneliness scale), depression (Brief Symptom Inventory/BSI-18), and resilience (Brief Resilience Scale/BRS) were assessed. Associations were inspected using multivariate regression models. Being lonely, but not isolated (β = 0.276; p < 0.001) and being both isolated and lonely (β = 0.136; p < 0.001) were associated with higher depressive symptoms. Being isolated, but not lonely was not associated with depressive symptoms. Thus, the subjective emotional evaluation, i.e., feeling lonely, of the social situation during lockdown seems more relevant than the objective state, i.e., being isolated. Normal (β = −0.203; p < 0.001) and high resilience (β = −0.308; p < 0.001) were associated with lower depressive symptoms across groups. Therefore, strengthening coping skills may be a support strategy during lockdowns, especially for lonely older individuals

Neighbourhood socio-economic status and positive affectivity among older residents in Germany: a cross-sectional analysis with data from the Heinz Nixdorf Recall Study

Background: Physical and social neighbourhood characteristics can vary according to the neighbourhood socio-economic status (SES) and influence residents’ perceptions, behaviours and health outcomes both positively and negatively. Neighbourhood SES has been shown to be predictive of mental health, which is relevant for healthy ageing and prevention of dementia or depression. Positive affectivity (PA) is an established indicator of mental health and might indicate a positive emotional response to neighbourhood characteristics. In this study, we focussed on the association of neighbourhood SES with PA among older residents in Germany and considered social integration and environmental perceptions in this association. Methods: We used questionnaire-based data of the ongoing population-based Heinz Nixdorf Recall Study for our cross-sectional analysis, complemented by secondary data on social welfare rates in the neighbourhood of residents’ address. PA was assessed using the Positive and Negative Affect Schedule (PANAS) in 2016. Linear regression models were performed to estimate the associations and adjusted for socio-demographic variables. Results: Higher social welfare rates were associated with lower PA scores. The strongest negative association from the crude model (b = -1.916, 95%-CI [-2.997, -0.835]) was reduced after controlling for socio-demographic variables (b = -1.429, 95%-CI [-2.511, -0.346]). Social integration factors (b = -1.199, 95%-CI [-2.276, -0.121]) and perceived environmental factors (b = -0.875, 95%-CI [-1.971, 0.221]) additionally diminished the association of social welfare rates with PA in the full model (b = -0.945, 95%-CI [-2.037, 0.147]). Conclusion: Our results suggest that neighbourhoods have an influence on the occurrence and the extent of PA. Public health interventions that address socio-economic disadvantage in the neighbourhood environment could be an effective and far-reaching way to reduce the risk of depression and depressive symptoms due to low PA in older residents

Outcomes of stable and unstable patterns of subjective cognitive decline: results from the Leipzig Longitudinal Study of the Aged (LEILA75+)

Background: Subjective cognitive decline (SCD), i.e., the self-perceived feeling of worsening cognitive function, may be the first notable syndrome of preclinical Alzheimer’s disease and other dementias. However, not all individuals with SCD progress. Stability of SCD, i.e., repeated reports of SCD, could contribute to identify individuals at risk, as stable SCD may more likely reflect the continuous neurodegenerative process of Alzheimer’s and other dementias. Methods: Cox regression analyses were used to assess the association between stability of SCD and progression to MCI and dementia in data derived from the population-based Leipzig Longitudinal Study of the Aged (LEILA75+). Results: Of 453 cognitively unimpaired individuals with a mean age of 80.5 years (SD = 4.2), 139 (30.7 %) reported SCD at baseline. Over the study period (M = 4.8 years, SD = 2.2), 84 (18.5 %) individuals had stable SCD, 195 (43.1 %) unstable SCD and 174 (38.4 %) never reported SCD. Stable SCD was associated with increased risk of progression to MCI and dementia (unadjusted HR = 1.8, 95 % CI = 1.2–2.6; p < .01), whereas unstable SCD yielded a decreased progression risk (unadjusted HR = 0.5, 95 % CI = 0.4–0.7; p < .001) compared to no SCD. When adjusted for baseline cognitive functioning, progression risk in individuals with stable SCD was significantly increased in comparison to individuals with unstable SCD, but not compared to individuals without SCD. Conclusions: Our results, though preliminary, suggest that stable SCD, i.e., repeated reports of SCD, may yield an increased risk of progression to MCI and dementia compared to unstable SCD. Baseline cognitive scores, though within a normal range, seem to be a driver of progression in stable SCD. Future research is warranted to investigate whether stability could hold as a SCD research feature

Increasing the oxidation power of TCNQ by coordination of B(C6F5)3

The oxidation power of the cyanocarbon TCNQ (tetracyano-quinodimethane) can be significantly increased to approximately E = +0.9 V vs. Cp2Fe by coordination of up to four equivalents of the strong fluorinated Lewis acid B(C6F5)3, resulting in a highly reactive but easy-to-use oxidation system. Thianthrene and tris(4-bromophenyl)amine were oxidized to the corresponding radical cations. Dianionic [TCNQ·4 B(C6F5)3]2− was formed upon reduction with two equivalents of ferrocene or decamethylcobaltocene. [TCNQ·4 B(C6F5)3]− and [TCNQ·4 B(C6F5)3]2− are rare cases of redox-active weakly-coordinating anions