Perovskite CsCuClxBr3- x Microcrystals: Band Structure, Photochemical Stability, and Photocatalytic Properties.

Although Pb-based metal halide perovskites (MHPs) have excellent photoelectric characteristics, their toxicity remains a limiting factor for their widespread application. In the paper, a series of CsCuClxBr3-x (x = 1, 2, 3) MHP microcrystals were developed and their hydrogen evolution performance in ethanol and HX (X = Cl, Br) was also studied. Among them, CsCuCl3 microcrystals exhibit high hydrogen evolution performance in both HX and ethanol, attributed to their longest average lifetime and suitable band structure.

Efficient Colorimetric Fluoride Anion Chemosensors With Varied Colors Based on Simple Aminobenzodifuranone Organic Π-Conjugated Dyes.

High selectivity and sensitivity detection of fluoride anions (F) in an organic solution by the naked eye has always been a challenge. In this investigation, a simple compound based on aminobenzodifuranone (ABDF) was designed and synthesized. Deprotonation of the amino moiety caused by F is responsible for a color change from dark blue to various colors (colorless, yellow, orange, and red) in different common organic solvents due to a blue shift over 200 nm in the UV/Vis spectrum.

[Effect of community intervention model of clonorchiasis in Zhaoyuan County].

After the community interventions of clonorchiasis control in Zhaoyuan County, the infection rate of Clonorchis sinensis of residents decreased from 67.43% to 7.12%, and the awareness rates of healthy knowledge and healthy behavior increased by 124.

Effect of control strategies on prevalence, incidence and re-infection of clonorchiasis in endemic areas of China.

Background: A pilot clonorchiasis control project was implemented to evaluate the efficacies of various chemotherapy strategies on prevalence, incidence and re-infection in Heilongjiang Province, China.

Methods And Findings: Seven intervention groups (14,139 residents, about 2000 in each group) in heavily or moderately endemic areas were subjected to repeated praziquantel administration from 2001 to 2004. In the selective chemotherapy groups, residents were examined for fecal eggs, and those who tested positive were treated with three doses of 25 mg/kg praziquantel at 5-hour-intervals in one day.

Correlation between sonographic findings and infection intensity in clonorchiasis.

This prospective study was performed to evaluate the diagnostic usefulness of sonography in terms of the intensity of Clonorchis sinensis infection. Total 1,384 residents were subjected to this study at an endemic area in China, in which a clonorchiasis control program had been performed. History taking, fecal examination, and sonography were performed, and 87.

Sonographic findings of active Clonorchis sinensis infection.

Purpose: The aim of this study was to document the characteristic sonographic findings of clonorchiasis for the diagnosis of active infection in an endemic area.

Methods: In a village in northeastern China, residents underwent fecal examinations for detection of Clonorchis sinensis eggs. Shortly thereafter, residents were examined with abdominal sonography.

The Kato-Katz method is reliable for diagnosis of Clonorchis sinensis infection.

We evaluated the sensitivity of three fecal examination methods, the Kato-Katz (KK) method, formalin-ether technique (FE) and direct smear, for the diagnosis of clonorchiasis. The KK method proved to be most sensitive in six groups with different egg counts. In cases of extremely light infection FE was found to be more sensitive than KK.