This paper outlines the major animal epidemic emergency management system in the United States, involving the responsibilities of United States Department of Agriculture (USDA), Department of Homeland Security (DHS), and Department of Health and Human Services ( DHHS ) .Besides the main commanding and coordinating departments, the system also involves procedures in surveillance, early warning, preparation, response and ending in case of serious animal emergency.We have also summarized and analyzed the characteristics of the American response mode, such as net-worked laboratories, special corps,budgets and national animal identification systems.

China ; Occupational Exposure ; Threshold Limit Values ; Ultraviolet Rays

Recent meta-analysis based on both clinical trials and epidemiological studies has revealed the relationship of dietary cholesterol,blood cholesterol level and cholesterol lowering drugs (statins) with colorectal cancer.This review summarises the advances in current evidences of linking cholesterol metabolism and risk of colorectal cancer and the underlying molecular mechanisms based on pharmacogenetics and molecular pathology.

Disasters ; Earthquakes ; Humans ; Maxillofacial Injuries ; therapy

Anemia, Macrocytic ; Chromosome Deletion ; Chromosomes, Human, Pair 5 ; Cri-du-Chat Syndrome ; Humans ; Trisomy

Adolescent ; Defibrillators, Implantable ; Female ; Humans ; Long QT Syndrome ; therapy

Ergonomics ; Humans ; Lifting ; National Institute for Occupational Safety and Health (U.S.) ; Occupational Health ; United States

Health Promotion ; Outcome and Process Assessment (Health Care) ; Workplace

The construction of art mass organization in medical colleges can consummate quality education system,make up insufficiency of the classroom teaching,promote medical students' comprehensive development and innovative ability and mold fine mind and lofty medical ethics.Therefore,it has important theoretical and practical significance to study existing problems and find out the ways to improve art mass organization construction of medical schools.

Objective To evaluate the feasibility of inducing choroidal neovascularization(CNV) in Brown Norway(BN) rats by diode laser with wavelength of 810 nm. Methods Thirty-five BN rats were divided into(7 groups.)In each groups,one rat served as control,while the other four recieved retinal photocoagulation by diode(laser) in two eyes,at a spot size of 75 ?m with a duration of 100 ms and power of 140 mW.On 1,3,7,14,21,28 and 56 days after photocoagulation,the formation and nature process of CNV were observed by fundus fluorescein(angiography)(FFA),indocyaninegreen angiography(ICGA) and light microscopy(LM). Results FFA,ICGA and LM demonstrated that CNV began to form on the seventh day after photocoagulation,increased on the fourteenth day,reached the peak on the twenty-first day and kept stable until the fifty-sixth day. Conclusion Diode Laser can successfully induced CNV in BN rats,and it is an ideal animal model for further study.