Análisis de la escritura académica del inglés en china

[ES] El tema de este estudio son los factores que afectan el nivel de escritura académica en inglés en el proceso de enseñanza y aprendizaje de la escritura académica. El objeto del estudio son estudiantes de licenciatura con una titulación de inglés en China. El propósito es mejorar la capacidad de escritura académica de los estudiantes de una titulación de inglés en China. El estudio adopta el método de cuestionario. Se puede concluir que la capacidad de escritura académica de los estudiantes de la licenciatura de titulación de inglés en China aún necesita ser mejorada a través de un análisis cualitativo y cuantitativo. Mediante el análisis de los problemas en la escritura académica, en este trabajo se afirma que, en la licenciatura, se deben establecer los cursos académicos y se debería ofrecer un curso de redacción académica modular en inglés. Se propone que la enseñanza se debería centrarse en diferentes etapas de redacción de la tesis académica en inglés y llevar a cabo un aprendizaje investigativo.[EN] The subject of this study are the factors that affect the level of academic writing in English in the teaching and learning process of academic writing. The object of the study are undergraduate students with an English degree in China. The purpose is to improve the academic writing ability of students of an English degree in China. The study adopts the questionnaire method. It can be concluded that the academic writing ability of the students of the English degree in China still needs to be improved through a qualitative and quantitative analysis. By analyzing the problems in academic writing, this paper states that, in the bachelor's degree, academic courses must be established and a modular academic writing course in English should be offered. It is proposed that the teaching should focus on different stages of writing the academic thesis in English and carry out investigative learning.Zhang, R. (2020). Análisis de la escritura académica del inglés en china. http://hdl.handle.net/10251/137916TFG

catena-Poly[[diaqua­bis(thio­cyanato-κN)cobalt(II)]-μ-4,4′-bipyridine-κ2 N:N′] 4,4′-bipyridine solvate]

In the title complex, {[Co(NCS)2(C10H8N2)(H2O)2]·C10H8N2}n, the CoII ion is located on an inversion centre and is coordinated by two N atoms from the two 4,4′-bipyridine ligands, two O atoms from the water mol­ecule, and two N atoms from two isothio­cyanate ions in a distorted octa­hedral environment. In the crystal, the coordinated water mol­ecules, isothio­cyanate ions and solvent 4,4′-bipyridine mol­ecules are linked by O—H⋯S and O—H⋯N hydrogen bonds into layers parallel to the ab plane

Efficacy of Probiotics Supplementation On Chronic Kidney Disease: a Systematic Review and Meta-Analysis

Background/Aims: Dysbiosis of the intestinal microbiota may accelerate the progression of chronic kidney disease (CKD) by increasing the levels of urea toxins. In recent years, probiotics have been recognized to maintain the physiological balance of the intestinal microbiota. In this study, we aim to assess the therapeutic effects of probiotics on CKD patients with and without dialysis via meta-analysis. Methods: We conducted a meta-analysis of randomized controlled trials (RCTs) by searching the databases of Pubmed, EMBASE and Cochrane Library (No. CRD42018093080). Studies on probiotics for treatment of CKD adults lasting for at least 4 weeks were selected. The primary outcomes were the levels of urea toxins, and the second outcomes were the levels of interleukin (IL)-6, C-reactive protein (CRP) and hemoglobin (Hb). The risk of bias was assessed by Cochrane Collaboration’ tool, and the quality of evidence was appraised with the Grading of Recommendation Assessment. Means and standard deviations were analyzed by random effects analysis. Stratified analysis was done and sensitivity analysis was performed when appropriate. Results: Totally, eight studies with 261 patients at CKD stage 3 to 5 with and without dialysis were included. We found a decrease of p-cresyl sulfate (PCS) of 3 studies with 125 subjects (P = 0.01, SMD -0.57, 95% CI, -0.99 to -0.14, I2 = 25%) and an increase of IL-6 in 3 studies with 134 subjects (P = 0.03, 95% CI, SMD 0.37, 0.03 to 0.72, I2 = 0%) in the probiotics groups. Analysis of serum creatinine (P = 0.47), blood urine nitrogen (P = 0.73), CRP (P = 0.55) and Hb (P = 0.49) yielded insignificant difference. Conclusion: Limited number of studies and small sample size are limitations of our study. Probiotics supplementation may reduce the levels of PCS and elevate the levels of IL-6 whereby protecting the intestinal epithelial barrier of patients with CKD

Effect of Re-impacting Debris on the Solidification of the Lunar Magma Ocean

Anorthosites that comprise the bulk of the lunar crust are believed to have formed during solidification of a Lunar Magma Ocean (LMO) in which these rocks would have floated to the surface. This early flotation crust would have formed a thermal blanket over the remaining LMO, prolonging solidification. Geochronology of lunar anorthosites indicates a long timescale of LMO cooling, or re-melting and re-crystallization in one or more late events. To better interpret this geochronology, we model LMO solidification in a scenario where the Moon is being continuously bombarded by returning projectiles released from the Moon-forming giant impact. More than one lunar mass of material escaped the Earth-Moon system onto heliocentric orbits following the giant impact, much of it to come back on returning orbits for a period of 100 Myr. If large enough, these projectiles would have punctured holes in the nascent floatation crust of the Moon, exposing the LMO to space and causing more rapid cooling. We model these scenarios using a thermal evolution model of the Moon that allows for production (by cratering) and evolution (solidification and infill) of holes in the flotation crust that insulates the LMO. For effective hole production, solidification of the magma ocean can be significantly expedited, decreasing the cooling time by more than a factor of 5. If hole production is inefficient, but shock conversion of projectile kinetic energy to thermal energy is efficient, then LMO solidification can be somewhat prolonged, lengthening the cooling time by 50% or more