Effect of SiN Additive on Microstructure and Mechanical Properties of Ti(C,N)-Based Cermet Cutting Tools.

Development of high-performance cutting tool materials is one of the critical parameters enhancing the surface finishing of high-speed machined products. Ti(C,N)-based cermets reinforced with and without different contents of silicon nitride were designed and evaluated to satisfy the requirements. In fact, the effect of silicon nitride addition to Ti(C,N)-based cermet remains unclear.

Immunotherapy with radiotherapy fails to improve prognosis of patients with stage IV non-small cell lung cancer: a retrospective cohort analysis of the THUNDER-2 study.

Background: Radiotherapy (RT) may enhance the systemic antitumor reaction to immunotherapy (IT). Currently, the effect of RT in stage IV non-small cell lung cancer (NSCLC) patients treated with IT is uncertain. This study aimed to confirm the role of RT in these patients.

Age-Associated Changes in Adverse Events Arising From Anti-PD-(L)1 Therapy.

Background: Immune-related adverse events (irAEs) may complicate the immune checkpoint inhibition (ICI) therapy. The effect of age on these irAEs is not elucidated. The aim of the study was to compare the occurrence of irAEs in different age groups.

[Study on the comparison of high risk behaviors related to AIDS among different status of income in men who have had sex with men].

Objective: To explore the risk sexual behaviors related to AIDS among different status of income among men who have had sex with men and to provide relevant interventions for AIDS control and prevention.

Methods: Study objectives were recruited through target sampling and anonymous questionnaires were adopted. Men's sexual behaviors were reported under the categories as high, mid or low-income.

[Study on 1389 men who have sex with men regarding their HIV high-risk behaviors and associated factors in mainland China in 2004].

Objective: To study the HIV related high-risk behaviors and associated factors on the spread of HIV among men having sex with men(MSM) who lived in mainland China and to provide evidence for developing related policies and intervention measures.

Methods: Questionnaires were distributed at gay bars and volunteer activity venues in six big cities of China. Data on 1389 valid cases was collected and urine HIV screening test was provided.