نتایج جستجو برای: common cold
تعداد نتایج: 779223 فیلتر نتایج به سال:
Previous studies have demonstrated a relation between dispositional optimism and lower pain sensitivity, but the causal status of this link remains unclear. This study sought to test the causal status by experimentally inducing a temporary optimistic state by means of writing about and visualizing a future best possible self. In addition, we explored pain expectations and (situational) pain cat...
The name of Cold Fusion (CF) comes from the interpretation given to certain phenomena taking place in a metal lattice roughly at room temperature, in terms of nuclear fusion, say between two deuterium nuclei: cold in comparison with the high temperatures of thermonuclear fusion (10 K). The first time this was suggested was in the Spring of 1989, ten years ago, by Fleischmann and Pons (1): their...
BACKGROUND Echinacea is a herbal preparation that is frequently used to treat the common cold. Spending on echinacea in the United States has risen to >300 million dollars annually. METHODS A total of 322 articles related to echinacea and colds, including 9 placebo-controlled clinical trials, were identified using the Medline and PubMed databases. Eleven features of experimental design that a...
Solid deuterium (sD2) will be used for the production of ultra-cold neutrons (UCN) in a new generation of UCN sources. Scattering cross sections of UCN in sD2 determine the source yield but until now have not been investigated. We report first results from transmission and scattering experiments with cold, very cold and ultra-cold neutrons on sD2 along with light transmission and Raman scatteri...
Despite the many works on contagion phenomena in both well-mixed systems and heterogeneous networks, there is still a lack of understanding of the intermediate regime where social group structures evolve on a similar time scale to individual-level transmission. We address this question by considering the process of transmission through a model population comprising social groups which follow si...
UNLABELLED The aim of this study was to verify the prevalence of wheezing in infants (< 1 year of age) in Recife, Pernambuco State, Brazil, and to identify associated risk factors. SAMPLE AND METHODS the study was performed according to the protocol of the International Study of Wheezing in Infants (EISL) in children ranging from 12 to 15 months of age. The sample was analyzed for presence or...
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