Perturbations in gut and respiratory microbiota in COVID-19 and influenza patients: a systematic review and meta-analysis.

Objectives: Coronavirus disease-19 (COVID-19)/influenza poses unprecedented challenges to the global economy and healthcare services. Numerous studies have described alterations in the microbiome of COVID-19/influenza patients, but further investigation is needed to understand the relationship between the microbiome and these diseases. Herein, through systematic comparison between COVID-19 patients, long COVID-19 patients, influenza patients, no COVID-19/influenza controls and no COVID-19/influenza patients, we conducted a comprehensive review to describe the microbial change of respiratory tract/digestive tract in COVID-19/influenza patients.

Effects of AH and AFt on the Hydration-Hardening Properties of the C4A3S¯-CS¯-HO System.

This study aimed to reveal the effects of the hydration products AH and AFt phases on the hydration and hardening properties of calcium sulfoaluminate (CSA) cement. In addition, the effects of anhydrite (CS¯) and gypsum (CS¯H2) on the properties of CSA cement were compared. Calcium sulfoaluminate (C4A3S¯) was synthesized with analytical reagents, and the C4A3S¯-CS¯-HO system with different molar ratios of CS¯ and C4A3S¯ was established.

Parental Pressure on Child Body Image, BMI, Body Image Dissatisfaction Associated with Eating Disorders in School-Age Children in China: A Path Analysis.

Background: Children's eating behaviors, body shape and body image cognition may be more susceptible to the influence of their parents, but these influences may be weakened with age. There may be different association pathways between parental pressure on children's body image (PPCBI), body mass index (BMI), body image dissatisfaction (BID) and eating disorders (EDs) among children and adolescents at different developmental stages.

Methods: The stratified cluster sampling method (Stratified by grade, and took the classes as clusters) was used to select 486 students aged 8-15 years in two 9-year schools.

Parental Stress on Children's Appearance, Body Dissatisfaction, and Eating Behaviours in Chinese Children: A Pathway Analysis.

Purpose: This study aimed to analyze the association pathways of parental stress on children's appearance, body dissatisfaction, and eating behaviours in Chinese children and adolescents.

Patients And Methods: The children aged 8-15 years were selected from 2 nine-year schools using stratified cluster random sampling. The appearance-related social stress questionnaire and the body dissatisfaction subscale of EDI-1 were used to investigate parental stress on children's appearance and body dissatisfaction, respectively.

Improving the Mechanical Properties of Sulfoaluminate Cement-Based Grouting Material by Incorporating Limestone Powder for a Double Fluid System.

To improve the hardening performance of sulfoaluminate cement-based grouting material (SCGM) and reduce its cost, limestone powder was adopted to replace anhydrite in the control SCGM. The influence of the replacement rate of limestone powder on the hydration, hardening strength, expansion, and microstructure evolution of the SCGM was systematically researched. The results indicated that replacing anhydrite with limestone powder in SCGM can improve the flowability, shorten the setting time, and enhance the compressive strength at early and late stages.

Revealing the Microstructure Evolution and Carbonation Hardening Mechanism of β-CS Pastes by Backscattered Electron Images.

β-dicalcium silicate (β-CS) minerals were prepared. The compositions, microstructures, and distributions of the carbonation products of hardened β-CS paste were revealed by X-ray diffraction (XRD), Fourier transform-infrared (FT-IR) spectroscopy, and backscattered electron (BSE) image analysis. The results show that a dense hardened paste of β-CS can be obtained after 24 h of carbonation curing.

(E)-Methyl 3-(3,5-dibromo-2-hy-droxy-benzyl-idene)carbazate.

The title compound, C(9)H(8)Br(2)N(2)O(3), crystallizes with two very similar independent mol-ecules in the asymmetric unit, each of which adopts a trans configuration with respect to the C=N bond. Intra-molecular O-H⋯N hydrogen bonds are observed in each independent mol-ecule. In the crystal structure, mol-ecules are linked into chains propagating along [010] by N-H⋯O and C-H⋯O hydrogen bonds.