We report for the first time to our knowledge the experimental achievement of storage ring free-electron laser (FEL) oscillations on the third harmonic in the wide infrared region. The FELs were oscillated in the wavelength regions of 852-881 nm and 1510-1551 nm. The measured linewidth of the third-harmonic FEL was narrower than that of the fundamental FEL owing to the narrower spectral width o...

BACKGROUND Psychosocial factors have been reported to be independently associated with coronary heart disease. However, previous studies have been in mainly North American or European populations. The aim of the present analysis was to investigate the relation of psychosocial factors to risk of myocardial infarction in 24767 people from 52 countries. METHODS We used a case-control design with...

BACKGROUND Little is known about the pattern or risk factors for deaths from external causes in sub-Saharan Africa: there is a lack of reliable data, and public health priorities have been focussed on other causes. This study assessed the prevalence and risk factor for deaths from external causes in rural Malawi. METHODS We analysed data from 2002-2012 from the Karonga demographic surveillanc...

This study investigated occupational exposure to wood and vegetative smoke in a group of 28 forest firefighters at prescribed forest burns in a southeastern U.S. forest during the winters of 2003-2005. During burn activities, 203 individual person-day PM(2.5) and 149 individual person-day CO samples were collected; during non-burn activities, 37 person-day PM(2.5) samples were collected as cont...

BACKGROUND Pesticide suicides are considered the single most important means of suicide worldwide. Centralized pesticide storage facilities have the possible advantage of delaying access to pesticides thereby reducing suicides. We undertook this study to examine the feasibility and acceptability of a centralized pesticide storage facility as a preventive intervention strategy in reducing pestic...

BACKGROUND Mid-to-late adolescence is a critical period for initiation of alcohol and drug problems, which can be reduced by targeted brief motivational interventions. Web-based brief interventions have advantages in terms of acceptability and accessibility and have shown significant reductions of substance use among college students. However, the evidence is sparse among adolescents with at-ri...

BACKGROUND The use of herbal medicines for health prevention and ailments is an increasing trend worldwide. Women in pregnancy are no exception; the reported prevalence of herbal medicine use in pregnancy ranges from 1 to 60 %. Despite a common perception of safety, herbal medicines may have potent pharmacological actions, and historically, have been used for this reason. METHODS A multinatio...

BACKGROUND The prophylactic efficacy of statin pretreatment for the prevention of contrast-induced nephropathy (CIN) in patients undergoing coronary angiography (CAG) or percutaneous coronary intervention (PCI) remains controversial. The aim of the study was to perform a meta-analysis of randomized controlled trials (RCTs) to assess the effectiveness of short-term moderate or high-dose rosuvast...

Diplodocids are among the best known sauropod dinosaurs. Numerous specimens of currently 15 accepted species belonging to ten genera have been reported from the Late Jurassic to Early Cretaceous of North and South America, Europe, and Africa. The highest diversity is known from the Upper Jurassic Morrison Formation of the western United States: a recent review recognized 12 valid, named species...

(1997) Analytica Chimica Acta 344: 241}249. 23. Llompart MP, Lorenzo RA, Cela R, PareH JRJ, BeH langer JMR and Li K (1997) Journal of Chromatography A 757: 153}164. 24. Llompart MP, Lorenzo RA, Rosa A, Cela R, Li K, BeH langer JMR and Pare JRJ (1997) Journal of Chromatography A 774: 243}251. 25. Chee KK, Wong MK and Lee HK (1996) Journal of Liquid Chromatography and Related Technology 19: 259}2...