Whether and What to Tell: A Qualitative Study of HIV Disclosure Among Heterosexually Married Men Who Have Sex with Men in China.

In China, HIV transmission increasingly affected men who have sex with men (MSM) and those in heterosexual marriages. This study addressed a critical gap in understanding HIV and sexual orientation disclosure within conventional heterosexual marriages, framed within a family-oriented cultural context. Heterosexually married MSM living with HIV (HIV+ MMSM) faced complex identity dynamics and interactions between "gay circles" and marital life.

Impacts of residual 3D printing metal powders on immunological response and bone regeneration: an in vivo study.

Residual powder is a defect in powder bed fusion-based additive manufacturing (3D printing), and it is difficult to completely remove it from as-printed materials. In addition, it is not necessary to apply 3D printed implants with residual powder in the clinic. The immunological response triggered by the residual powder is an important area of study in medical research.

Process Optimization and Tailored Mechanical Properties of a Nuclear Zr-4 Alloy Fabricated via Laser Powder Bed Fusion.

A nuclear Zr-4 alloy with a near full density was fabricated via laser powder bed fusion (LPBF). The influences of process parameters on the printability, surface roughness, and mechanical properties of the LPBF-printed Zr-4 alloy were investigated. The results showed that the relative density of the Zr-4 alloy samples was greater than 99.

First-principle calculations of sulfur dioxide adsorption on the Ca-montmorillonite.

According to the serious problem of sulfur dioxide pollution, montmorillonite is one of the effective ways in gas pollution control because of its excellent absorption properties. One of the fundamental questions is to fully understand sulfur dioxide absorption mechanism of montmorillonite. In this study, using the first-principle methods, we studied the adsorption characteristics of Ca-montmorillonite in the presence of [Formula: see text].

Study on Interfacial Bonding Properties of NiTi/CuSn10 Dissimilar Materials by Selective Laser Melting.

The dissimilar materials bonding of NiTi alloy with shape memory effect (SME) and CuSn10 alloy with good ductility, electrical conductivity, and thermal conductivity can be used in aerospace, circuits, etc. In order to integrate NiTi and CuSn10 with greatly different physical and chemical properties by selective laser melting (SLM), the effects of forming interlayers with different SLM process parameters were explored in this study. The defects, microstructure, and component diffusion at the interface were also analyzed.

Sex life and sexuality among : doing gender and heterosexuality.

The term refers to cisgender, heterosexual women who unwittingly marry non-straight men. In mainland China, their adverse social position and health have been the subject of concern. This study aims to broaden and diversify perceptions of the lived experiences of by focusing on sex and sexualities in mixed-orientation marriages.

"I did not know I was gay": sexual identity development and fluidity among married in China.

This study aimed to analyse the life experiences of married (defined here as men who are sexually attracted to men) in mixed-orientation marriages in mainland China. The study used a life course perspective to understand sexual identity development among , born in the 1970s or thereabouts, in heterosexual marriage and rural China. The study focused on identifying the experiences of the 13 participants.

Tribo-Induced Near-Infrared Light Emission between Metal and Quartz.

Triboluminescence (TL) refers to the luminescence phenomenon at the material surface under the action of pressure or shear. This fascinating phenomenon can directly convert mechanical energy into light emission without the need for other auxiliary components; therefore, it attracts more and more researchers to conduct research in different wavelength ranges, such as X-ray, ultraviolet, visible light, and terahertz. However, there have been few reports on the study of the near-infrared (NIR) range, which is very important in the integrity of the triboluminescence research.

Design and Fabrication of a Precision Template for Spine Surgery Using Selective Laser Melting (SLM).

In order to meet the clinical requirements of spine surgery, this paper proposes the fabrication of the customized template for spine surgery through computer-aided design. A 3D metal printing-selective laser melting (SLM) technique was employed to directly fabricate the 316L stainless steel template, and the metal template with tiny locating holes was used as an auxiliary tool to insert spinal screws inside the patient's body. To guarantee accurate fabrication of the template for cervical vertebra operation, the contact face was placed upwards to improve the joint quality between the template and the cervical vertebra.

Customized a Ti6Al4V Bone Plate for Complex Pelvic Fracture by Selective Laser Melting.

In pelvic fracture operations, bone plate shaping is challenging and the operation time is long. To address this issue, a customized bone plate was designed and produced using selective laser melting (SLM) technology. The key steps of this study included designing the customized bone plate, metal 3D printing, vacuum heat treatment, surface post-processing, operation rehearsal, and clinical application and evaluation.

Novel customized template designing for patellar resurfacing in total knee arthroplasty.

Unlabelled: Due to the irregular shape of patella and difficulty in identifying its bony landmarks, it can be a challenge for surgeons to accurately and symmetrically perform patellar resurfacing. Three-dimensional (3D) models of 20 patellae were generated from computed tomographic images. Using a computer-assisted preoperative planning technique, customized template designs were developed to guide patellar resurfacing.

Intraoperative anthropomorphic study of anterior femoral condyles compared with sizing of femoral arthroplasty.

Purpose: The present study was designed to compare the dimensions of the anterior femoral condyle with those of the anterior component flange using intraoperative morphological data.

Methods: Overall, 1227 knees in 962 patients were included in this study. The height of the anterior lateral/medial condylar height (ALCH/AMCH) was measured and compared between men and women.

Comprehensive assessment of patellar morphology using computed tomography-based three-dimensional computer models.

Background: The objectives of this study were to assess patellar morphology using computed tomography-based three-dimensional computer models and to determine the utility of the subchondral method for patellar resection in total knee arthroplasty (TKA).

Methods: Overall, 120 subjects (60 males, 60 females) from 20 to 50 years old were included. Computer tomography images were used to construct 3D computer models of 240 knees.

Intraoperative anthropometric measurements of tibial morphology: comparisons with the dimensions of current tibial implants.

Purposes: This study analyzed morphological differences in the resected proximal tibial surfaces of Chinese males and females undergoing total knee arthroplasty (TKA) and compared the measurements with the dimensions of five currently used tibial implants.

Methods: The mediolateral (ML), middle anteroposterior (AP), medial anteroposterior (MAP), and lateral anteroposterior (LAP) dimensions of the resected tibial surfaces of 976 Chinese TKA knees (177 male, 799 female) were measured. The ML/AP ratio of every knee was calculated.

[Simultaneous determination of five nucleotides in Bulbus Fritillariae by RP-HPLC].

A high-performance liquid chromatography method was developed for determination of five nucleotides in Bulbus Fritillariae. The five nucleotides were uridine, adenine, guanosine, thymidine, adenosine, respectively. A Welch materials XB-C18 column (4.