Bidentate Lewis Base Ligand-Mediated Surface Stabilization and Modulation of the Electronic Structure of CsPbBr Perovskite Nanocrystals.

The desorption of conventional ligands from the surface of halide perovskite nanocrystals (NCs) often causes their structural instability and deterioration of the optoelectronic properties. To address this challenge, we present an approach of using a bidentate Lewis base ligand, namely, 1,4-bis(diphenylphosphino)butane (DBPP), for the synthesis of CsPbBr NCs. The phosphine group of DBPP has a strong interaction with the PbBr precursor, forming a highly crystalline intermediate complex during the reaction.

Improving usual care outcomes in major depression in youth by targeting memory specificity: A randomized controlled trial of adjunct computerized memory specificity training (c-MeST).

Objective: Extending on previous findings that computerized Memory Specificity Training (c-MeST) improves memory specificity and depressive symptoms in Major Depressive Disorder (MDD) in adults, this study aimed to assess the effects of c-MeST in youth with MDD on memory specificity and depression in addition to other treatment.

Methods: Participants aged 15-25 (N = 359, 76 % female; M age = 19.2, SD = 3.

[Development and validation of the questionnaire for testing the level of knowledge of athletes on nutrition].

A large number of socio-economic factors affect the nutritional status of an athlete. Athletes' nutritional awareness can affect longterm health and occupational disease risks among athletes. To assess the level of knowledge of athletes about nutrition, scientists of the world community have developed various types of tools in the form of questionnaires that are successfully used in practice to analyze the nutrition of athletes and optimize it.

Future thinking and anticipatory pleasure in adolescents with major depression: Association with depression symptoms and executive functions.

Objective: Impairments in episodic future thinking and anticipatory pleasure were noted to explain the depressive symptoms in adults however similar studies are not there in adolescents. This study examined whether there are impairments in episodic future thinking and anticipatory pleasure in clinically-depressed adolescents as compared to non-depressed adolescents, and their association with depression when controlled for executive functions and anxiety symptoms among the depressed adolescents.

Methods: The study included 29 adolescents with major depression and 29 adolescents from local schools through convenient sampling technique.

Toward "E-Ring-Free" Lamellarin Analogues: Synthesis and Preliminary Biological Evaluation.

Since the discovery of anticancer properties of a naturally occurring hexacyclic marine alkaloid Lamellarin D, the attempts have been made to prepare its synthetic analogues and elucidate the effects of each structural component on their activity profile. While F-ring-free, A-ring-free and B-ring-open lamellarins are known, E-ring-free analogues have never been investigated. In this work, we developed a facile and straightforward synthetic method toward E-ring-free lamellarin analogues based on the [3+2]-cycloaddition.