In this paper D is a non empty set. We now state several propositions: (1) Let D be a non empty set, and let S be a non empty subset of D, and let f be a binary operation on D, and let g be a binary operation on S. Suppose g = f [:S, S :]. Then (i) if f is commutative, then g is commutative, (ii) if f is idempotent, then g is idempotent, and (iii) if f is associative, then g is associative. (2)...

Shanghai Institute of Immunology, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine and Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China, Department of Immunology, Soochow University, Suzhou, China, Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China, Department of Neph...

The Romanian Academy of Medical Sciences is the institution that includes the elite of the Romanian medical and pharmaceutical professionals. This is an article of recollection of one of the most outstanding presidents of the Romanian Academy of Medical Sciences, Nicolae Cajal. A distinguished scientist, Cajal accepted not only the task of president of this forum, but was also involved in socia...

In 2001, the Institute of Medicine (IOM) and the National Academy of Sciences (NAS) attributed substantial problems in the quality of American medicine to four domains: growing complexity of science and technology; the increase in chronic conditions; a poorly organized delivery system; and constraints on exploiting the revolution in information technology (IT). Although all of these domains hav...

a Research Unit for Complementary and Integrative Laser Medicine, b Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine, and c TCM Research Center Graz, Medical University of Graz, Graz , Austria; d German Academy for Acupuncture, European Academy for Traditional Chinese Medicine, Munich , Germany; e Department of Information and Computing Science, School of Mathem...

Reconstruction of the historical and scientific-practical heritage military-medical scientific potential country during Great Patriotic War is enduring relevance. Already by 1940, more than 250 specialized institutions were created in relation to theoretical, preventive clinical medicine which 21,000 workers worked (of them 2394 doctors 5025 candidates sciences). During war, military continued ...

1 Department of Laboratory Medicine, Beijing Hospital, No.1 DaHua Road, Beijing 100730, China 2 Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing, China Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering and Biotechnology Beijing Key La...

1 Laboratory of Molecular Oncology, Institute for Nutritional Sciences, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Shanghai, China, 2 College of Public Health, Zhengzhou University, Zhengzhou, China, 3 Department of Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China, 4 Institute for M...

introduction: due to the use of information technology in libraries and information centers, librarians are faced with many challenges in terms of their roles and needs; hence, they require continuous training to cope with these challenges. the aim of the present study was to determine the effectiveness of in-service training courses for librarians working in libraries at the isfahan university...