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Página 1 a partir de 353 resultados
False claims in tobacco litigation junk science article.
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False promises: the tobacco industry, "low tar" cigarettes, and older smokers.
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To investigate the role of the tobacco industry in marketing to and sustaining tobacco addiction among older smokers and aging baby boomers, We performed archival searches of electronic archives of internal tobacco company documents using a snowball sampling approach. Analysis was done using
Individualized versus population-based approaches to tobacco control - a false dichotomy.
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The false consensus effect: predicting adolescents' tobacco use from normative expectations.
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A longitudinal sample of 916 adolescents was examined to assess the extent to which the perceived smoking prevalence of adults' or peers' smoking was related to cigarette smoking. Questionnaires were distributed to junior high school students in Grade 7 and again in Grade 9. Prevalence of perceived
Reduced nicotine content cigarette advertising: How false beliefs and subjective ratings affect smoking behavior.
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Tobacco advertising can create false beliefs about health harms that are reinforced by product design features. Reduced nicotine content (RNC) cigarettes may reduce harm, but research has not addressed advertising influences. This study examined RNC cigarette advertising effects on false harm
False broomrape: a physiological disorder caused by growth-regulator imbalance.
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False broomrape on tobacco (Nicotiana tabacum) can be induced by applying cytokinins to the roots, by causing an increase in the cytokinin-auxin ratio in the roots, by removing the apical and auxillary buds, or by applying extracts from tobacco with false broomrape to the roots of healthy plants. It
Local false discovery rate facilitates comparison of different microarray experiments.
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The local false discovery rate (LFDR) estimates the probability of falsely identifying specific genes with changes in expression. In computer simulations, LFDR <10% successfully identified genes with changes in expression, while LFDR >90% identified genes without changes. We used LFDR to compare
Demographic predictors of false negative self-reported tobacco use status in an insurance applicant population.
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OBJECTIVE
To identify and quantify demographic correlates of false-negative self-reporting of tobacco use in life insurance applicants.
BACKGROUND
Several studies have assessed the sensitivity of self-reporting for tobacco use in various populations, but statistical examination of the causes of
Elucidation of False Detection of Pesticides During Residue Analysis in Indian Tobacco by Multidimensional GC-MS.
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Background: False detection of pesticides in agricultural produce may raise serious questions regarding both consumer safety and trade. High levels of delta-hexachlorocyclohexane (δ-HCH; 11.7-22.3 mg/kg) were detected in some tobacco samples in a retention time-based GC analysis. Hence, the
Lung carcinoma presenting with pathologic femur fracture and false-positive pregnancy test result.
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β-Human chorionic gonadotropin (βhCG) assays are routinely used to test for pregnancy. However, βhCG may be elevated in conditions other than pregnancy. We describe a case of metastatic lung adenocarcinoma presenting with a pathologic femur fracture and a false-positive urine pregnancy test. Lung
Some pharmacological properties of the false cholinergic transmitter acetylpyrrolidinecholine and its precursor pyrrolidinecholine.
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The acetylchline analogue acetylpyrrolidinecholine as well as the choline analogue pyrrolidinecholine were synthesized and the cholinergic properties of both substances were investigated on the guinea-pig ileum, rat blood pressure and frog rectus abdominis muscle. Acetylpyrrolidinecholine was 3-5
Femoral anastomotic false aneurysms. An 11-year experience analyzed with a case control study.
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Eighty-three femoral anastomotic false aneurysms occurring in 51 patients were diagnosed from 1972 through 1982. Twenty-two (27%) presented with acute events. Seventy (84%) were confirmed by sonography and/or arteriography. Bilaterality (29%), recurrence (18%), and associated aortic false aneurysms
Tobacco exposure and reduced radiographic progression of rheumatoid arthritis: a false protective effect? Comment on the article by Vesperini et al.
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False identification of urinary ephedrine as methamphetamine by gas chromatography/mass spectrometry with a DB-17 column.
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A 17-year-old motorcyclist was killed in a traffic accident. The urine sample collected at autopsy was screened by the Toxi-Lab system; it showed a possible presence of either methamphetamine (MA) or ephedrine (Eph). Gas chromatography-mass spectrometry (GC-MS) was carried out for a trifluoroacetyl
Power and false-positive rates for the restricted partition method (RPM) in a large candidate gene data set.
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Many phenotypes of public health importance (e.g., diabetes, coronary artery disease, major depression, obesity, and addictions to alcohol and nicotine) involve complex pathways of action. Interactions between genetic variants or between genetic variants and environmental factors likely play
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