Filtyp
We study the effects of principal instructional leadership on pupil educational achievement using longitudinal data of 120,394 teacher responses across 1919 schools in Sweden over 9 years. Through multilevel structural equation modelling, we test how teacher ratings of principal leadership influence indicators of educational achievement and the extent to which this effect is channelled through a c
The end of what the GDR called “real existierender Sozialismus” in Europe at the beginning of the 1990s dramatically changed the geopolitical situation in Central and Eastern Europe. Five states ceased to exist, whereas 22 new states have been recognized, accompanied by a host of internationally unrecognized states. Nearly half a century of relative stability in Europe was replaced by volatility aThe end of what the GDR called “real existierender Sozialismus” in Europe at the beginning of the 1990s dramatically changed the geopolitical situation in Central and Eastern Europe. Five states ceased to exist, whereas 22 new states have been recognized, accompanied by a host of internationally unrecognized states. Nearly half a century of relative stability in Europe was replaced by volatility a
In an increasingly interconnected and digitalized global world, organizations are confronted with a growing range of complex crises. The COVID-19 pandemic, the war in Ukraine, environmental disasters resulting from climate change, global financial crises, and misinformation campaigns are just some of the contemporary global developments presenting significant organizing challenges. Positioned at t
Background: Because breast cancer (BC) is molecularly heterogeneous, diagnosis and treatment will likely benefit from comprehensive genetic profiling. However, routine, high-resolution sequencing is not feasible yet, due to implementation challenges associated with whole-genome sequencing of formalin-fixed paraffin embedded (FFPE) BC samples. Therefore, we explored the potential of an alternative
A blood biomarker-based staging system for Alzheimer’s disease (AD) could improve the diagnosis, prognosis and identification of individuals most likely to benefit from specific therapies. Here, using targeted mass spectrometry, we measured six phosphorylated and six nonphosphorylated tau peptides in plasma from two independent cohorts: BioFINDER-2 and TRIAD (n = 689). We also analyzed the ratios
The astronomical observations and calculations made at the lunar eclipse of 18 November 1584 in Mexico are analyzed with emphasis on the methods and calculations used. The observations were intended to determine the geographical longitude difference between Mexico City and Seville in Spain but due to several errors, the most important one being using the wrong time for the end of the eclipse in Se
I samband med den väldigt forcerade utbyggnaden av den gröna omställningen genom stora fabriker i norra Sverige ställs en rad frågor kring hanteringen av personal, säkerhet, likabehandling och ansvar. De arbetsrättsliga implikationerna är många. Den ursprungliga euforiska uppfattningen av etableringar som Northvolt i Skellefteå visade sig efterhand föra med sig betydande utmaningar. Texten, som är
Purpose: To evaluate the role of blood perfusion and revascularization during the healing process of periocular defects treated with laissez-faire following tumor excision. Methods: Ten patients with periocular basal cell carcinomas underwent excision, followed by laissez-faire wound management. Blood perfusion was measured using laser speckle contrast imaging postoperatively. Results: Immediately
INTRODUCTION: Large language models (LLMs) have gained increasing popularity in several medical disciplines. In orthopedic research however, their integration into routine practice have been questioned as they do not seem to outperform experienced clinicians. Conversely, research on the role of artificial intelligence in hand surgery remains limited. This study aims to evaluate two common LLMs in
BACKGROUND: Post-acute sequelae of SARS-CoV-2 infection, or long COVID, include diverse symptoms and remain a major concern worldwide. This study investigates the occurrence of depression, anxiety, fatigue, and headache 1 year prior to the COVID-19 pandemic (2019), 12 months prior to, and 6 months after long COVID diagnosis in individuals diagnosed with long COVID and matched population-based cont
Microorganisms are key players in the global cycling of nitrogen and carbon, controlling their availability and fluxes, including the emissions of the powerful greenhouse gases nitrous oxide and methane. Standard sequencing methods often reveal only a limited fraction of their diversity, because of their low relative abundance, the insufficient sequencing depth of traditional metagenomes of comple
Autocracies have increasingly begun to clothe themselves in the guise of hybrid, semi-official institutions that exhibit a degree of autonomy from the state, such as Government-Organized NGOs (GONGOs), “zombie” election observers, regime-run think tanks, astroturfing, or semi-official state-mobilized movements (SMMs). Existing literature has analyzed hybrid institutions as products of their functi
Bacterial pathogens deploy diverse virulence factors to subvert host immunity, yet the molecular details of these interactions often remain unresolved. Here, we investigate the structure and host interactome of the Streptococcus pyogenes nuclease A (SpnA). We characterized the structure and dynamics of SpnA using hydrogen-deuterium exchange mass spectrometry and single-particle electron cryo micro
Relational memory retrieval entails a dynamic interplay between eye movements and neural activity, yet the temporal coordination of these processes remains unclear. We examined how theta- and alpha-band EEG activity relates to sequential fixations during relational memory retrieval. Participants performed a two-alternative forced-choice associative memory task while eye movements and EEG were reco
