Durability of a Metakaolin-Incorporated Cement-Based Grouting Material in High Geothermal Tunnels.

To improve the durability of cement-based grout in high geothermal tunnel grouting projects, metakaolin was incorporated to replace 8% of the cement. The permeability, chloride penetration, and sulfate and carbonate erosion tests were carried out on the grout cured at varying temperatures (20, 30, 40, 50, and 60 °C). It was shown that with the increase in curing temperature, the impermeability and resistance to chloride penetration initially increased and then decreased, reaching the highest values at 40 °C.

Metabolic Disease and Risk of Thyroid Disease: Evidence from the National Nurse Health Cohort in China.

Background: Previous studies have shown that metabolic diseases are risk factors for thyroid disease; most studies are cross-sectional design. We aimed to evaluate the causal relationship between thyroid and metabolic diseases in a cohort of Chinese nurses.

Methods: We conducted an ambispective cohort study of the National Nurses' Health Study.

Genome-Wide Characterization of Glutathione Peroxidase (GPX) Gene Family in Rapeseed ( L.) Revealed Their Role in Multiple Abiotic Stress Response and Hormone Signaling.

Plant glutathione peroxidases (GPXs) are the main enzymes in the antioxidant defense system that sustain HO homeostasis and normalize plant reaction to abiotic stress conditions. To understand the major roles of the gene family in rapeseed ( L.), for the first time, a genome-wide study identified 25 genes in the rapeseed genome.

[Synthesis and Properties of 1,11,15,25-Tetrahydroxy-4,8,18,22-Di (Bridged Dipropionate Carboxyl) Phthalocyanine Copper].

In this dissertation, we study the synthesis and character of new substituted Phthalocyanine. Due to the widely application of Pcs in the fields, such as the communication, medical treatment, chemical industry and so on, therefore, they have been a hot topic over several decades by scientists. Nowadays, scientists have prepared thousands of Pcs and their derivatives.