Insights into N-Coordinated Bimetallic Site Synergy during NO Selective Catalytic Reduction by CO.

The nature of the synergistic effect in bimetallic catalysts remains a challenging issue, due to the difficulty in understanding the adjacent interaction between dual metals at the atomic level. Herein, a CuFe-N/C catalyst featuring diatomic metal-nitrogen sites was prepared through a sequential ion exchange strategy and applied for NO selective catalytic reduction by CO (CO-SCR). The bimetallic CuFe-N/C catalyst exhibits high N selectivity with a NO conversion efficiency of nearly 100% over a wide temperature range from 225 to 400 °C, significantly higher than that of its single-component counterparts.

[Prognostic factors of stage IB and IIA carcinoma of the cervix treated by surgery].

Objective: To evaluate prognostic factors in patients with stage IB-IIA of cervical carcinoma treated by surgery.

Methods: Between December 1992 and December 2001, 111 patients with stage IB-IIA cervical cancer surgically treated were analyzed. Median age 40 years.

Telomerase activity in cervical intraepithelial neoplasia.

Background: It was reported that telomerase expression is closely associated with cellular immortality and cancer. This study was designed to investigate the relationship between telomerase expression and the carcinogenesis of cervical cancer, the possible use of telomerase as a marker of cervical intraepithelial neoplasia (CIN) progression or regression, and the natural history of CIN.

Methods: Telomeric repeat amplification protocol (TRAP) assay was used to measure telomerase activity in cervical scrapings and biopsy samples obtained from 105 cases affected with various cervical conditions, including chronic cervicitis (n = 20), CIN (n = 64, 16 cases of CIN I, 20 cases of CIN II, and 28 cases of CIN III), and invasive squamous cell carcinoma (n = 21).

[Present status of radiotherapy in the treatment of gynecological malignancy].

This paper introduces radiation in the treatment of gynecological malignancy, including its importance, methods, curative effects, and some critical issues nowadays.