Toward Graph Self-Supervised Learning With Contrastive Adjusted Zooming.

Graph representation learning (GRL) is critical for graph-structured data analysis. However, most of the existing graph neural networks (GNNs) heavily rely on labeling information, which is normally expensive to obtain in the real world. Although some existing works aim to effectively learn graph representations in an unsupervised manner, they suffer from certain limitations, such as the heavy reliance on monotone contrastiveness and limited scalability.

The Structure-Function Relationship of Human Bleomycin Hydrolase: Mutation of a Cysteine Protease into a Serine Protease.

Human bleomycin hydrolase (hBH) catalyzes deamidation of the anticancer drug bleomycins (BLM). This enzyme is involved in BLM detoxification and drug resistance. Herein, we report the putative BLM-binding site and catalytic mechanism of hBH.

Highly Efficient Multiple Exciton Generation and Harvesting in Few-Layer Black Phosphorus and Heterostructure.

Multiple exciton generation (MEG) in semiconductors that yields two or more excitons by absorbing one high-energy photon has been proposed to break the Shockley-Queisser limit and boost photon-to-electron conversion efficiency. However, MEG performance in conventional bulk semiconductors or later colloidal nanocrystals is far from satisfactory. Here, we report efficient MEG in few-layer black phosphorus (BP), a direct narrow bandgap two-dimensional (2D) semiconductor with layer-tunable properties.

Prediction of residual/recurrent disease by HPV genotype after loop excision procedure for high-grade cervical intraepithelial neoplasia with negative margins.

Aims:   This study aims to evaluate whether the preconisation of high-risk human papillomavirus (HR-HPV) genotype and multiple HPV infection is predictive for residual/recurrent disease during the follow-up of high-grade cervical intraepithelial neoplasia (CIN) treated by loop electrosurgical excision procedure (LEEP) with negative margins.

Methods:   Two hundred and thirty-six women (mean age 37; range 20-61) with CIN2/3 treated by LEEP conisation with negative margins confirmed by pathology examination of the surgical specimen were included. The cervical cells for HPV genotype testing by the polymerase chain reaction (PCR) were collected before, and 6, 12, 24 months after treatment, respectively.

Prevalence of genital human papillomavirus infection and genotypes among women from Fujian province, PR China.

Objective: The prevalence and distribution of oncogenic human papillomavirus (HPV) genotypes in women who underwent screening for cervical cancer in Fujian province, China, were assessed and the correlation of genotypes with the histological results was evaluated.

Study Design: Cervical samples were collected from 2338 women for cervical cancer screening. Participants were screened by liquid-based cytology and HPV genotyping using DNA Chip and referred to colposcopy and biopsy samples for further analyses if cytology results indicated undetermined significance (ASCUS) or higher.