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Exploring the Electronic Band Structure of Organometal Halide Perovskite via Photoluminescence Anisotropy of Individual Nanocrystals

Understanding electronic processes in organometal halide perovskites, flourishing photovoltaic, and emitting materials requires unraveling the origin of their electronic transitions. Light polarization studies can provide important information regarding transition dipole moment orientations. Investigating individual methylammonium lead triiodide perovskite nanocrystals enabled us to detect the pol

Following in Real Time the Two-Step Assembly of Nanoparticles into Mesocrystals in Levitating Drops

Mesocrystals composed of crystallographically aligned nanocrystals are present in biominerals and assembled materials which show strongly directional properties of importance for mechanical protection and functional devices. Mesocrystals are commonly formed by complex biomineralization processes and can also be generated by assembly of anisotropic nanocrystals. Here, we follow the evaporation-indu

Herbivore teeth predict climatic limits in Kenyan ecosystems

A major focus in evolutionary biology is to understand how the evolution of organisms relates to changes in their physical environment. In the terrestrial realm, the interrelationships among climate, vegetation, and herbivores lie at the heart of this question. Here we introduce and test a scoring scheme for functional traits present on theworn surfaces of large mammalian herbivore teeth to captur

Brev som liv och konst. Brevväxlingen mellan Lilli Jahn och hennes barn

The letters between the jewish Lilli Jahn and her four young children during 1943 and 1944 are analyzed as representation of reality, i e the terrible situation and fate of Lilli Jahn (murdered in Auschwitz) and the children, and as art, the conscious forming of the letters of Jahn, adhering to the norms of the familiar letter.

Emotional kinship care and neutral non-kinship care - the struggle between discourses

In this paper, social workers' ideas of kinship care and non-kinship care as foster placement alternatives for vulnerable children are analysed and discussed. The study is based on group interviews with Swedish social workers, using a discourse analytic approach. The interviews took two vignettes of children who needed an immediate and long-term placement because one of the parents had killed the

High expression of stromal PDGFRβ is associated with reduced benefit of tamoxifen in breast cancer

Cancer-associated fibroblasts (CAFs) regulate tumour growth, metastasis and response to treatment. Recent studies indicate the existence of functionally distinct CAF subsets. Suggested mechanisms whereby CAFs can impact on treatment response include paracrine signaling affecting cancer cell drug sensitivity and effects on tumour drug uptake. PDGFRβ is an important regulator of fibroblasts. Experim

Two phase ii randomized trials on the CRTh2 antagonist AZD1981 in adults with asthma

Background: Chemoattractant receptor-homologous molecule expressed on T helper type 2 (Th2) cell (CRTh2) receptor antagonists is being investigated for asthma. Objectives: The aim of this study was to assess the effects of the CRTh2 receptor antagonist, AZD1981 (with/without inhaled corticosteroids [ICSs]), on lung function and asthma control. Patients and methods: Adults aged 18–60 years were enr

Decision making process for constructing low-energy buildings in the public housing sector in Sweden

The built environment accounts for a significant share of energy consumption and energy efficiency in this sector is important for the Swedish environmental objectives. Only a limited share of the total new construction of multifamily houses are constructed as low-energy buildings. Current building regulations lay down requirements for energy efficiency for new construction, and these will be tigh

Local Government Cooperation : A Better Way to Respond to Conditions?

Studies have shown that all Swedish municipalities are involved in cooperation with other municipalities, and most frequent in soft forms like agreements. Often each municipality have full control of its activities and then join forces with others on the margin. However, in this chapter it is showed that this situation is undergoing a change. Municipalities facing new a new landscape are looking f

Dietary alpha-ketoglutarate increases cold tolerance in Drosophila melanogaster and enhances protein pool and antioxidant defense in sex-specific manner

Alpha-ketoglutarate (AKG) is an important intermediate in Krebs cycle which bridges the metabolism of amino acids and carbohydrates. Its effects as a dietary supplement on cold tolerance were studied in Drosophila melanogaster Canton S. Two-day-old adult flies fed at larval and adult stages with AKG at moderate concentrations (5-10 mM) recovered faster from chill coma (0 °C for 15 min or 3 h) than

TPL2 is an oncogenic driver in keratocanthoma and squamous cell carcinoma

Squamous cell carcinoma (SCC) and keratoacanthoma (KA; SCC/KA) research has been hampered mainly by our lack of understanding the underlying genetic and epigenetic alterations associated with SCC/KA development, as well as the lack of animal models that faithfully recapitulate histopathologic features of human SCC/KA. Here, we show that TPL2 over-expression induced both cell transformation in immo

Persistent disabling breathlessness in chronic obstructive pulmonary disease

Objective: To determine the prevalence, change in breathlessness status over time, and risk factors for disabling and persistent disabling breathlessness in relation to treatments in chronic obstructive pulmonary disease (COPD). Materials and methods: Longitudinal analysis of data from the Swedish National Register of COPD with breathlessness measured using modified Medical Research Council (mMRC)

miR-204 suppresses the development and progression of human glioblastoma by targeting ATF2

In human cancers, miRNAs are important regulators of multiple cellular processes, and aberrant miRNA expression has been observed, and their alterations contribute to multiple cancer development and progression. Till now, little has been known about the role of miR-204 in human glioblastoma (GBM). In the present study, we used in-vitro assays to investigate the mechanisms of miR-204 in GBM cell li

Effects of a culturally adapted lifestyle intervention on cardio-metabolic outcomes : a randomized controlled trial in Iraqi immigrants to Sweden at high risk for Type 2 diabetes

Background andAims Middle-Eastern immigrants constitute a growing proportion of the Swedish population and are at high risk for Type 2 diabetes. This calls for a more proactive preventive approach for dealing with diabetes risk in this target group. The aim was to test the effect of a culturally adapted lifestyle intervention programme on changes in lifestyle habits and cardio-metabolic outcomes c

Metformin ameliorates dysfunctional traits of glibenclamide- and glucose-induced insulin secretion by suppression of imposed overactivity of the islet nitric oxide synthase-no system

Metformin lowers diabetic blood glucose primarily by reducing hepatic gluconeogenesis and increasing peripheral glucose uptake. However, possible effects by metformin on beta-cell function are incompletely understood. We speculated that metformin might positively influence insulin secretion through impacting the beta-cell nitric oxide synthase (NOS)-NO system, a negative modulator of glucose-stimu

Changes in energy metabolism due to acute rotenone-induced mitochondrial complex I dysfunction – An in vivo large animal model

Metabolic crisis is a clinical condition primarily affecting patients with inherent mitochondrial dysfunction in situations of augmented energy demand. To model this, ten pigs received an infusion of rotenone, a mitochondrial complex I inhibitor, or vehicle. Clinical parameters, blood gases, continuous indirect calorimetry, in vivo muscle oxygen tension, ex vivo mitochondrial respiration and metab

Effect of tailored dose-dense chemotherapy vs standard 3-weekly adjuvant chemotherapy on recurrence-free survival among women with high-risk early breast cancer : A randomized clinical trial

IMPORTANCE Standard dosing of chemotherapy based on body surface area results in marked interpatient variation in pharmacokinetics, toxic effects, and efficacy.Whether tailored dosing can improve outcomes is unknown, as is the role of dose-dense adjuvant chemotherapy. OBJECTIVE To determine whether tailored dose-dense adjuvant chemotherapy improves the outcomes of early breast cancer compared with