3,001 research outputs found
Social, Contextual and Psychological Correlates of Alcohol and Illegal Drug Use by College and Non College Attending Youth
Adolescent and young adult alcohol and illegal drug use and abuse in the U.S. are public health and social problems of epidemic proportions. This study attempts to identify social, contextual and psychological correlates of levels of alcohol and illegal drug use for a local sample of college and non-college youth. Results from regression analyses indicated a significant influence of friends on level of alcohol and marijuana use and on illegal use of prescription and other drugs. Frequency of marijuana use was significantly associated with being male and frequently feeling depressed. In addition, attending a four-year college was positive and significantly related to higher levels of alcohol consumption. Implications for college and university and social policymakers and for future research are discussed
Integrated soil and weed management production systems for perennial food crops
Several alternative weed management tactics for strawberry and grape production were tested for their effects on weed control, crop yield and soil quality enhancement
The Equal Rights Amendment: A Constitutional Basis for Equal Rights for Women
In the present legal structure, some laws exclude women from legalrights, opportunities, or responsibilities. Some are framed as legislationconferring special benefits, or protection, on women. Others create orperpetuate a separate legal status without indicating on their facewhether the position of women ranks below, or above, the positionof men. Many of the efforts to create a separate legal status for womenstem from a good faith attempt to advance the interests of women.Nevertheless, the preponderant effect has been to buttress the socialand economic subordination of women
Bis(monoacylglycero)phosphate Forms Stable Small Lamellar Vesicle Structures: Insights into Vesicular Body Formation in Endosomes
AbstractBis(monoacylglycero)phosphate (BMP) is an unusually shaped lipid found in relatively high percentage in the late endosome. Here, we report the characterization of the morphology and molecular organization of dioleoyl-BMP (DOBMP) with dynamic light scattering, transmission electron microscopy, nuclear magnetic resonance (NMR) spectroscopy, and electron paramagnetic resonance spectroscopy. The morphology of hydrated DOBMP dispersions varies with pH and ionic strength, and DOBMP vesicles are significantly smaller in diameter than phosphatidylcholine dispersions. At neutral pH, DOBMP forms highly structured, clustered dispersions 500 nm in size. On the other hand, at acidic pH, spherically shaped vesicles are formed. NMR and spin-labeled electron paramagnetic resonance demonstrate that DOBMP forms a lamellar mesophase with acyl-chain packing similar to that of other unsaturated phospholipids. 31P NMR reveals an orientation of the phosphate group in DOBMP that differs significantly from that of other phospholipids. These macroscopic and microscopic structural characterizations suggest that the biosynthesis of BMP on the inner luminal membrane of maturing endosomes may possibly produce budded vesicles high in BMP content, which form small vesicular structures stabilized by the physical properties of the BMP lipid
Reducing pesticide use in Iowa vineyards: Alternatives to herbicides for vineyard weed management
Mulches can play a role in vineyard management. This project explored the optimum uses and practices for applying various mulches to grape agroecosystems
The Transition from Hyperinflation to Stability: Some Evidence
Phillip Cagan (1956) hypothesized
Analysis of recently identified dyslipidemia alleles reveals two loci that contribute to risk for carotid artery disease
<p>Abstract</p> <p>Background</p> <p>Genome-wide association studies have identified numerous single nucleotide polymorphisms (SNPs) affecting high density lipoprotein (HDL) or low density lipoprotein (LDL) cholesterol levels; these SNPs may contribute to the genetic basis of vascular diseases.</p> <p>Results</p> <p>We assessed the impact of 34 SNPs at 23 loci on dyslipidemia, key lipid sub-phenotypes, and severe carotid artery disease (CAAD) in a case-control cohort. The effects of these SNPs on HDL and LDL were consistent with those previously reported, and we provide unbiased estimates of the percent variance in HDL (3.9%) and LDL (3.3%) explained by genetic risk scores. We assessed the effects of these SNPs on HDL subfractions, apolipoprotein A-1, LDL buoyancy, apolipoprotein B, and lipoprotein (a) and found that rs646776 predicts apolipoprotein B level while rs2075650 predicts LDL buoyancy. Finally, we tested the role of these SNPs in conferring risk for ultrasonographically documented CAAD stenosis status. We found that two loci, chromosome 1p13.3 near CELSR2 and PSRC1 which contains rs646776, and 19q13.2 near TOMM40 and APOE which contains rs2075650, harbor risk alleles for CAAD.</p> <p>Conclusion</p> <p>Our analysis of 34 SNPs contributing to dyslipidemia at 23 loci suggests that genetic variation in the 1p13.3 region may increase risk of CAAD by increasing LDL particle number, whereas variation in the 19q13.2 region may increase CAAD risk by promoting formation of smaller, denser LDL particles.</p
Fecal microbiota diversity in survivors of adolescent/young adult Hodgkin lymphoma: A study of twins
BACKGROUND: Adolescent/young adult Hodgkin lymphoma (AYAHL) survivors report fewer exposures to infections during childhood compared with controls, and they have functional lymphocyte aberrations. The gut microbiota plays a central role in immunity. METHODS: We investigated whether fecal microbial diversity differed between 13 AYAHL survivors and their unaffected co-twin controls. Pyrosequencing of fecal bacterial 16S rRNA amplicons yielded 252 943 edited reads that were assigned to species-level operational taxonomic units (OTUs) and standardised for sequencing depth by random sampling. Microbial diversity was compared within vs between twin pairs and by case–control status. RESULTS: The number of unique OTUs was more similar within twin pairs compared with randomly paired participants (P=0.0004). The AYAHL cases had fewer unique OTUs compared with their co-twin controls (338 vs 369, P=0.015); this difference was not significant (169 vs 183, P=0.10) when restricted to abundant OTUs. CONCLUSION: In this small study, AYAHL survivors appear to have a deficit of rare gut microbes. Further work is needed to determine if reduced microbial diversity is a consequence of the disease, its treatment, or a particularly hygienic environment
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