Fabrication and Evaluation of the Photocatalytic, Antibacterial Activity of Ag–TiO2_2 Thin Film

Ag–TiO2 thin film was fabricated by DC magnetron sputtering and photoreduction methods. Characteristics of the film such as surface area, crystal structure, and chemical composition were investigated by using scanning electron microscope (SEM), X–ray diffractometry (XRD) and UV–vis spectra. The photocatalytic activity of Ag–TiO2 thin film was determined by the degradation of methylene blue (MB) solution under various irradiation conditions. The antibacterial property of Ag–TiO2 thin film was conducted in E. coli bacteria. Results showed that the photocatalytic and antibacterial property of Ag–TiO2 thin film are better than those of pure TiO2 thin film in the visible region. Ag–TiO2 thin film shows a great potential application in the antibacterial and environment field

The status of southern white-cheeked gibbon (Nomascus siki) in Truong Son key biodiversity area

The Southern white-cheeked crested gibbon, Nomascus siki, is an endemic primate to Vietnam and Laos, and has been identified as a nationally and globally endangered species (EN). However, little information is known on the status of the species in Vietnam generally and in the Truong Son key biodiversity area (Truong Son KBA) particularly. In order to explore the current status of the species in the Truong Son KBA, we conducted field surveys in 2018 and 2019. Analysis of the survey data shows 149 groups of gibbon in the 4 study areas. Combined with results of similar-techniqued survey in 2016 on the same species in Khe Nuoc Trong forest, we identified at least 252 gibbon groups and estimated 425 gibbon groups in the entire Truong Son KBA. These gibbon groups are mainly distributed in medium-rich evergreen closed forests in mountainous areas of the west Truong Son KBA, adjacent to the Vietnam-Laos border.

The Relationship between HLA-B27, HLA-Cw06, HLA-DR7 and Psoriatic Arthritis in Vietnamese Patients: Disease Progression and Therapeutic Burden

We conducted a prospective, cross-sectional study at Ho Chi Minh City Hospital of Dermato Venereology from January 2016 to March 2017 in 40 psoriatic arthritis (PsA) patients to evaluate the disease progression and therapeutic burden about the HLA patterns. Based upon our results, PsA with HLA-B27 (+) had a threat of severe arthritis. PsA with HLA-Cw06 (+) had a higher risk of earlier onset and shorter duration for plaque psoriasis to transform into PsA. HLA-DR7 (+) in PsA delayed the time for conversion from plaque psoriasis into PsA. These findings are quite similar to other studies in the literature