Outcomes of women treated with progestin and metformin for atypical endometrial hyperplasia and early endometrial cancer: a systematic review and meta-analysis.

Objective: Progestin therapy is the recommended fertility-sparing management of atypical endometrial hyperplasia or early-stage endometrial cancer in reproductive-aged women. Our objective was to evaluate disease relapse after progestin and metformin versus progestin therapy alone in patients with endometrial hyperplasia or cancer. Our secondary outcomes were disease remission, clinical pregnancy and live birth rate.

A Novel Method for Calculation of Molecular Energies and Charge Distributions by Thermodynamic Formalization.

The paper describes a new approach to the thermodynamic formalization for calculation of molecular energy and charge distribution in ground state by means of the variational equation of DFT. In order to thermodynamically formalize the molecular calculation, the pseudo chemical potential (PCP) is conceptualized, where a molecule is broken into multi-phase(atom) one-component(electron) systems and the energy of system is represented as PCP. Calculation of the molecular energy and atomic charge by PCP is put forward, thereafter the approach is proved to be valid and its efficiency (accuracy and calculation speed) is verified.

Preparation of mesoporous ZnAlO nanoflakes by ion exchange from a Na-dawsonite parent material in the presence of an ionic liquid.

Herein, mesoporous ZnAlO spinel nanoflakes were prepared by an ion-exchange method from a Na-dawsonite parent material in the presence of an ionic liquid, 1-butyl-2,3-dimethylimidazolium chloride ([bdmim][Cl]), followed by calcination at 700 °C for 2 h. The as-obtained products were characterized by several techniques such as X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX). The ZnAlO nanoflakes with the thickness of ∼20 nm were composed of numerous nanoparticles, which resulted in a high specific surface area of 245 m g.

Formation of alumina nanocapsules by high-energy-electron irradiation of Na-dawsonite nanorods.

We report the synthesis of unique Al2O3 nanocapsules by high-energy-electron irradiation of Na-dawsonite and a formation mechanism different from thermal decomposition which usually produces NaAlO2. The novel decomposition process may open up a shortcut for fabricating hollow nanostructures.

Understanding the effect models of ionic liquids in the synthesis of NH4-Dw and γ-AlOOH nanostructures and their conversion into porous γ-Al2O3.

Well-dispersed ammonium aluminum carbonate hydroxide (NH4-Dw) and γ-AlOOH nanostructures with controlled morphologies have been synthesized by employing an ionic-liquid-assisted hydrothermal process. The basic strategies that were used in this work were: 1) A controllable phase transition from NH4-Dw to γ-AlOOH could be realized by increasing the reaction temperature and 2) the morphological evolution of NH4-Dw and γ-AlOOH nanostructures could be influenced by the concentration of the ionic liquid. Based on these experimental results, the main objective of this work was to clarify the effect models of the ionic liquids on the synthesis of NH4-Dw and γ-AlOOH nanostructures, which could be divided into cationic- or anionic-dominant effect models, as determined by the different surface structures of the targets.

Sb2S3 with various nanostructures: controllable synthesis, formation mechanism, and electrochemical performance toward lithium storage.

The size- and shape-controlled synthesis of Sb(2)S(3) nanostructures has been successfully realized by a facile hydrothermal route. A range of dimensional nanostructures, such as one-dimensional nanorods, two-dimensional nanowire bundles, three dimensional sheaf-like superstructures, dumbbell-shaped superstructures, and urchin-like microspheres, could be obtained through introducing different organic complex reagents or ionic liquids to the reaction system. The formation mechanisms of various Sb(2)S(3) nanostructures have been rationally proposed based on the crystal structure and the nature of the complex reagents and the ionic liquid.

A novel surfactant-free route to MnCO3 steep rhombohedra crystals and their large-scale assembly into regular elongated patterns in a mixed solvent.

The steep rhombohedra MnCO(3) microcrystals and their large-scale assembly into regular elongated patterns are obtained via a novel surfactant-free route by adjusting the proportion of the mixed solvent (methanol and DMF). We hope this synthetic strategy can provide a new approach to synthesize metal carbonates.

Ionic liquid-modulated synthesis of ferrimagnetic Fe(3)S(4) hierarchical superstructures.

Ferrimagnetic Fe(3)S(4) nanowalls and triple hierarchical microspheres have been fabricated via an ionic liquid-modulated solution-phase process, respectively. Magnetic hysteresis measurements demonstrate that their morphology-dependent magnetic properties might be originated from their unique nanostructures.

One-step ionothermal synthesis of gamma-Al2O3 mesoporous nanoflakes at low temperature.

gamma-Aluminium oxide (gamma-Al(2)O(3)) mesoporous nanoflakes, showing interesting optical properties, have been successfully synthesized via a one-step ionothermal synthetic method under mild conditions using an ionic liquid [bdmim][Cl] as multifunctional material in terms of solvent and template.

Hematite (alpha-Fe2O3) with various morphologies: ionic liquid-assisted synthesis, formation mechanism, and properties.

The alpha-Fe(2)O(3) with various morphologies has been successfully synthesized via an ionic liquid-assisted hydrothermal synthetic method. The samples are characterized by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscope (FE-SEM), transmission electron microscopy, and high-resolution transmission electron microscopy. The results indicate that the as-prepared samples are alpha-Fe(2)O(3) nanoparticles, mesoporous hollow microspheres, microcubes, and porous nanorods.