Tetra-μ-acetato-κ8 O:O′-bis{[(E)-2-styrylpyrazine-κN 3]copper(II)}

In the binuclear title compound, [Cu2(CH3COO)4(C12H10N2)2], the copper(II) ions are coordinated by four O atoms from two pairs of bridging acetate ligands and one N atom from a (E)-2-styryl­pyrazine ligand in a distorted tetra­hedral geometry. The structure displays no hydrogen bonding or π–π stacking inter­actions between the discrete binuclear entities

Cultivation of Students’ Self-Study Ability in Computer and Classroom Teaching Mode

Since the innovation of college English teaching, the cultivation of students’ self-study ability has become a target of the New Requirements for College English Teaching. As one of the country’s 180 experimental academies chosen by National Education Commission, our college adopts the teaching mode of combing classroom teaching and computer-based self-study system. Through the practice of students of grades 2004 and 2005, we can see that the comprehensive application ability of the students does not improve largely. Most students do not satisfy the oral English requirements of common standard. Their self-study ability is insufficient. In this paper, my opinion on how to cultivate students’ English self-study ability in the computer and classroom teaching mode will be given. Key words: computer and classroom teaching mode, self-study, metacognition, constructivism Résumé: Depuis la réforme de l’enseignement de l’anglais universitaire, la formation de la capacité d’apprendre par soi-même est déjà devenue un des objectifs du Programme. En tant qu’une des 180 écoles-pilotes élus par la Commission d’Etat de l’Education, notre école adopte le modèle d’enseignement combinant l’enseignement en classe et le système d’auto-apprentissage assité par l’ordinateur. La réalité des deux promotions 2004 et 2005 montre que l’élévation de la capacité d’application générale des élèves n’est pas sensible et que le niveau oral de la plupart des élèves ne répond pas à la demande générale. Les élèves sont peu aptes à apprendre par eux-mêmes. Dans l’article présent, l’auteur va présenter ses points de vue personnels sur la formation de la capacité d’auto-apprentissage de l’anglais des élèves, avec l’aide de l’ordinateur et le modèle d’enseignement en classe. Mots-clés: sur la base de l’ordinateur et l’enseignement en classe, auto-apprentissage, théorie de métacognition, théorie d’apprentissage constructiviste 摘 要：大學英語教學改革以來，自主學習能力的培養已成為《課程要求》的目標之一。我校作為全國 180 所國家教委選定的試點院校之一，教學過程中採用了課堂教學和基於電腦自主學習系統相結合的教學模式； 通過 2004級和 2005級兩屆學生的實踐教學來看，學生的綜合應用能力提高的幅度不大，多數學生口語表達 能力還沒有達到一般要求。自主學習能力較差。本文基於電腦和課堂教學，對如何培養學生的英語自主學習 能力談一下自己粗淺的看法。 關鍵詞： 基於電腦和課堂教學；自主學習；元認知理論；建構主義學習理

A neglected event in endovascular repair of aortic dissection: acute blood pressure variability during aortic angiography

[Purpose]To investigate acute blood pressure change during aortic angiography in aortic dissection endovascular repair, and analyse the potential risk of this incident.[Method]24 patients with aortic dissection underwent endovascular repair in department of vascular surgery of Changhai hospital between May 2016 and July 2016 were enrolled in this research. Patients were divided into two groups: patients underwent general anesthesia and patients underwent lumbar anesthesia. Blood pressure was monitored by intro-artery catheter. Blood pressure readings were recorded every 10 seconds during the procedure of angiography. Outcome of these patients were observed in hospital. [Result] All patients received endovascular aortic repair, with 19 underwent lumbar anesthesia and 5 underwent general anesthesia. Patients underwent lumbar anesthesia presented temporary blood pressure decrease with average of -11.2±13.4mmHg, while patients underwent general anesthesia presented temporary blood pressure elevation with average of 4.2±6.3mmHg. The Maximum time interval were 26.7±12.7s vs25.8±15.8s, and difference in blood pressure between pre- and post-angiography were 1.53±4.4mmHg vs. 4.6±3.4mmHg, both without significance (P>0.05).[Conclusion] Angiography is an effective factor influencing blood pressure during TEVAR, it’s a potential “trigger” of intra-operative cardiovascular events. Blood pressure should be kept on proper level to avoid cardiovascular events induced by blood pressure variability with angiography. Angiography with General anesthesia has less influence on blood pressure than with lumbar anesthesia

Existence of solutions for a class of quasilinear degenerate p(x)-Laplace equations

We study the existence of weak solutions for a degenerate p(x)-Laplace equation. The main tool used is the variational method, more precisely, the Mountain Pass Theorem

Existence of solutions for a class of quasilinear degenerate p(x)p(x)-Laplace equations

We study the existence of weak solutions for a degenerate p(x)-Laplace equation. The main tool used is the variational method, more precisely, the Mountain Pass Theorem