This paper presents a study with undergraduates of two chemistry courses, the Chemistry course A, and the Chemistry undergraduate course B.The study aims to investigate the Social Representations (SR) of these two groups about "experimentation" and to establish relations between these representations and the formative context of these students.It w
Lin Feng,1,2 Xiaozhe Yang,1,2 Yanfeng Shi,1,2 Shuang Liang,1,2 Tong Zhao,1,2 Junchao Duan,1,2 Zhiwei Sun1,2 1Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, PR China; 2Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, PR China Backgro
Introduction: Venous hypertension (VH) is a distressing complication following the creation of arteriovenous fistula (AVF).The aim of management is to relieve edema with preservation of AVF.Extensive edema increases surgical morbidity with the loss of hemodialysis access.We present our experience in management of VH.Methods: A retrospective study w
The soulatro Scalp serum coumarin compound was isolated and elucidated from the stem bark of Calophyllum soulattri Burm F, the samples were collected from Jayapura Papua Irian Island in Indonesia.Isolation process was done by maceration at room temperature in methanol, than partitioned in a mixture of n hexane-water (1:1), followed by dichlorometha
This manuscript summarizes the failure mechanisms per found in inorganic fullerene-type tungsten disulfide (IF-WS2) nanoparticles treated with diverse pressure loading methods.The approaches utilized to induce failure included: the use of an ultrasonic horn, the buildup of high pressures inside a shock tube which created a shock wave that propagate