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Characterization of histamine receptors mediating contraction and relaxation of the ovarian follicle wall

Histamine is known to be present in ovarian tissue and may play a role in the ovulation process. The effect of histamine on the follicular smooth musculature was investigated using strips from the protruding part of mature bovine follicles, mounted in vitro for registration of isometric motor activity. Histamine contracted the preparation in a concentration-dependent manner. The response was inhib

Skapa synligare skatter!

Svenska politiker ”mörkar” när det gäller frågan om vad vi faktiskt betalar i skatt. Det handlar om ett demokratiskt informationsunderskott som inte är värdigt ett samhälle som gör anspråk på öppenhet i det offentliga samtalet. Nu måste beslut fattas om att alla lönebesked redovisar såväl totallön, löneskatt och löneavgifter, som bruttolön, inkomstskatt och nettolön. Fiffiga finansministrar har hi

Indoor Particle Concentrations, Size Distributions, and Exposures in Middle Eastern Microenvironments

There is limited research on indoor air quality in the Middle East. In this study, concentrations and size distributions of indoor particles were measured in eight Jordanian dwellings during the winter and summer. Supplemental measurements of selected gaseous pollutants were also conducted. Indoor cooking, heating via the combustion of natural gas and kerosene, and tobacco/shisha smoking were asso

Phenological shifts alter the seasonal structure of pollinator assemblages in Europe

Pollinators play an important role in terrestrial ecosystems by providing key ecosystem functions and services to wild plants and crops, respectively. The sustainable provision of such ecosystem functions and services requires diverse pollinator communities over the seasons. Despite evidence that climate warming shifts pollinator phenology, a general assessment of these shifts and their consequenc

Comparative structural analysis of different mycobacteriophage-derived mycolylarabinogalactan esterases (Lysin B)

Mycobacteriophage endolysins have emerged as a potential alternative to the current antimycobacterial agents. This study focuses on mycolylarabinogalactan hydrolase (LysB) enzymes of the α/β-hydrolase family, which disrupt the unique mycolic acid layer of mycobacterium cell wall. Multiple sequence alignment and structural analysis studies showed LysB-D29, the only enzyme with a solved three-dimens

Photodetector Based on Spontaneously Grown Strongly Coupled MAPbBr3/N-rGO Hybrids Showing Enhanced Performance

Recently, metal-halide perovskites have emerged as a candidate for optoelectronic applications such as photodetectors. However, the poor device performance and instability have limited their future commercialization. Herein, we report the spontaneous growth of perovskite/N-rGO hybrid structures using a facile solution method and their applications for photodetectors. In the hybrid structures, pero

Disentangling taphonomic histories at Old Uppsala, a Late Iron Age central place in Sweden, using Multiple Correspondence Analysis (MCA)

Multiple Correspondence Analysis (MCA) has been applied to animal bones from the Late Iron Age (650–1050 CE) at the site of Old Uppsala, Sweden, to explore meat consumption and waste management at the site and to evaluate the inferential value of MCA, as indicated by earlier research using this technique. MCA describes variation within the data, which provides a platform from which to contextualiz

Examensarbeten- att skriva uppdragsbaserade uppsatser och rapporter

På många utbildningar är det idag vanligt att det finns en uppdragsgivare som står bakom ett examensarbete. Det kan vara ett företag, en förvaltning, en branschorganisation eller liknande. Denna nya situation kan vara både utmanande och stimulerande.I boken presenteras på ett enkelt sätt olika metodfrågor och logiken bakom olika metodkrav förklaras. Frågor som: varför måste det finnas källhänvisni

Nonpharmacological Interventions Addressing Pain, Sleep, and Quality of Life in Children and Adolescents with Primary Headache : A Systematic Review

Purpose: Children and adolescents with primary headache are at risk of persistent somatic symptoms and reduced quality of life (Qol) due to pain and pain-related behaviors, such as avoiding school and activities. Sleep is essential to health, and children and adolescents with primary headaches have more sleep complaints than do healthy controls. A treatment approach that addresses multifactorial c

The role of energy infrastructure in shaping early adoption of electric and gasoline cars

Electric vehicles have a potential to lower greenhouse gas emissions but still face challenges. This study asks what can be learned from the US automobile history. In 1900, there were three equal contenders in the US automotive industry: gasoline, electric and steam cars. Only a decade later, the gasoline car had achieved a crushing dominance. This dominance is often attributed to techno-economic

Block Copolymer Lithography. Applications for Sub-50 nm High-Density Nanostructures

As high technology device functionalities seem to constantly be moving towards decreasing critical dimensions and increasing density, there is a need for lithography research to move in the same direction. Block copolymer (BCP) lithography is a promising technique, which has single-digit nanometer resolution, typically has a pattern periodicity of 10-50 nm, and easily scales up the patterned area