Clinical efficacy and pathological outcomes of transanal endoscopic intersphincteric resection for low rectal cancer.

Background: Transanal endoscopic intersphincteric resection (ISR) surgery currently lacks sufficient clinical research and reporting.

Aim: To investigate the clinical effectiveness of transanal endoscopic ISR, in order to promote the clinical application and development of this technique.

Methods: This study utilized a retrospective case series design.

Atomic-Level Sn Doping Effect in GaO Films Using Plasma-Enhanced Atomic Layer Deposition.

In this work, the atomic level doping of Sn into GaO films was successfully deposited by using a plasma-enhanced atomic layer deposition method. Here, we systematically studied the changes in the chemical state, microstructure evolution, optical properties, energy band alignment, and electrical properties for various configurations of the Sn-doped GaO films. The results indicated that all the films have high transparency with an average transmittance of above 90% over ultraviolet and visible light wavelengths.

Correction method for the self-absorption effects in fluorescence extended X-ray absorption fine structure on multilayer samples.

A novel correction method for self-absorption effects is proposed for extended X-ray absorption fine structure (EXAFS) detected in the fluorescence mode on multilayer samples. The effects of refraction and multiple reflection at the interfaces are fully considered in this correction method. The correction is performed in k-space before any further data analysis, and it can be applied to single-layer or multilayer samples with flat surfaces and without thickness limit when the model parameters for the samples are known.

[Nicotine affects biological properties of the human osteosarcoma cell line MG63].

Objective: To evaluate the effect of nicotine on cell proliferation.

Methods: The cells were cultured with DMEM medium containing 10% fetal bovine serum with 0, 1 x 10(-4) mol x L(-1), and 1 x 10(-3) mol x L(-1) nicotine for up to 3, 5, 7, 10, 14 days. The cell proliferation was evaluated by MTT.

Design of transmission multilayer polarizer for soft X-ray using a merit function.

A new method of designing soft X-ray transmission multilayer polarizer for use at a single wavelength using a merit function has been eveloped. A merit function of product of p-transmittance throughput and logarithm of transmittance polarization ratio was chosen. Characteristics of Mo/Si multilayer calculated using the merit function at 13.

[Development of a prototype of space vegetable-cultivating facility for ground-based experiments].

Objective: To develop a ground-based experimental prototype of space vegetable-cultivating facility (GEPSVF), so as to solve the main key techniques related to higher plant cultivation in space environmental conditions, and to further lay a foundation for future development and application of the prototype of space vegetable-growing facility.

Method: Based on detailed demonstration and design of technique plan, the blueprint design and machining of components, whole facility installment, debugging, trial operations and verification experiments were done.

Result: The parameters in the growing chamber such as temperature, relative humidity, wind velocity, total pressure, O2 partial pressure, CO2 partial pressure and water content of the growing media were totally and effectively controlled; the light source was electronic fluorescent lamp; the average vegetable-producing output reached 60 g (fresh weight) d-1.