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21.
Neighbors Clayton; LaBrie Joseph W.; Hummer Justin F.; Lewis Melissa A.; Lee Christine M.; Desai Sruti; Kilmer Jason R.; Larimer Mary E. 《Canadian Metallurgical Quarterly》2010,24(3):522
Previous research has shown that social norms are among the strongest predictors of college student drinking. Among college students, perceiving that others drink more heavily than themselves has been strongly and consistently associated with heavier drinking. Research has also shown that the more specifically others are defined, the stronger the association is with one's own drinking. In the current research, we evaluated whether group identification as defined by feeling closer to specific groups moderates the associations between perceived drinking norms in the group and one's own drinking. Participants included 3,752 (61% female) students who completed online assessments of their perceived drinking norms for 4 groups of students on their campus and identification with each group and participants' own drinking behavior. Results indicated that greater identification with same-sex students, same-race students, and same-Greek-status students was associated with stronger relationships between perceived drinking norms in the specific groups and own drinking. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
22.
Lee Christine M.; Neighbors Clayton; Kilmer Jason R.; Larimer Mary E. 《Canadian Metallurgical Quarterly》2010,24(2):265
Despite clear need, brief web-based interventions for marijuana-using college students have not been evaluated in the literature. The current study was designed to evaluate a brief, web-based personalized feedback intervention for at-risk marijuana users transitioning to college. All entering first-year students were invited to complete a brief questionnaire. Participants meeting criteria completed a baseline assessment (N = 341) and were randomly assigned to web-based personalized feedback or assessment-only control conditions. Participants completed 3-month (95.0%) and 6-month (94.4%) follow-up assessments. Results indicated that although there was no overall intervention effect, moderator analyses found promising effects for those with a family history of drug problems and, to a smaller extent, students who were higher in contemplation of changing marijuana use at baseline. Implications of these findings for selective intervention of college marijuana use and web-based interventions in general are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
23.
With the approach of the 21st Century, computer and software technologies have changed the very fabric of our society. Beyond the sheer advances in processor speed, the most dramatic, far-reaching changes have occurred in the way we transfer information. Through the medium of the Internet, information can now be transmitted instantaneously from one end of the planet to the other. The future of information technology is bright, to be sure, but not without its challenges. For the Internet to enable us to achieve all our goals, it must gain a real-time context of who we are, our state and what we are doing. To this end, we must decouple context from the GUI and move it into a system built to hold it: a context engine. This system will let each of us organize our information according to the way we think, by association 相似文献
24.
This study examined the clinical utility of various brief screening procedures for identifying persons with a prior history of alcoholism among patients with recent traumatic brain injury (TBI). Participants were 50 patients assessed for various aspects of alcohol use and abuse during their acute rehabilitation hospitalization. Predictive indicators were tested against the Michigan Alcoholism Screening Test (MAST) as the criterion measure. Results indicated the 13-item Short Michigan Alcoholism Screening test is a good proxy for the longer MAST in this population. The two screening questions by M. Cyr and S. Wartman (1988) also have some limited utility. Practical implications of the results are discussed with a view toward adopting universal screening for alcoholism among persons with recent TBI. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
25.
Sodium bicarbonate was added to complete mixed rations to evaluate the effect of buffer addition on adaptation to high-energy rations by dairy cows in elderly lactation. Forty-five Holstein cows were assigned to one of three treatment groups: control pre- and postpartum; control prepartum, buffer postpartum; and buffer pre- and postpartum. Rations consisted of 85% chopped grass hay: 15% concentrate prepartum and 60% corn silage:40% concentrate postpartum. On day 4 postpartum, cows were switched abruptly to the postpartum ration for 9 wk. Buffered rations contained .6% sodium bicarbonate prepartum and .7% postpartum. Daily dry matter intake as a percent of body weight for cows fed buffer postpartum (3.51%) was greater than for cows fed no buffer (3.04%) of buffer pre- and postpartum (3.14%). Average production of 4% fat-corrected milk was greater for cows fed buffer postpartum and buffer pre- and postpartum (31.9 kg/day and 31.7 kg/day) than for cows fed no buffer (28.9 kg/day). Milk fat tests were not different. Cows fed the buffered rations lost body weight between wk 1 and 9 as compared to a net gain for cows fed no buffer. Cows fed buffers consumed more dry matter during wk 1 than did cows fed no buffer. Samples of rumen fluid, feces, and serum showed few differences that could be attributed to treatments. Compared to controls, cows fed sodium bicarbonate adapted to rations more rapidly postpartum as indicated by increased feed intake during the first 2 wk and by increased milk production during the first 4 wk of the trial. 相似文献
26.
Lewis Melissa A.; Rees Michiko; Logan Diane E.; Kaysen Debra L.; Kilmer Jason R. 《Canadian Metallurgical Quarterly》2010,24(2):229
Alcohol use has been implicated as a risk factor for sexual negative consequences, such as unprotected sexual intercourse. The present research was conducted to examine the relationship between drinking protective behavioral strategies and consensual sex-related alcohol negative consequences, and whether this relationship varied by gender. Additionally, typical number of drinks during sexual behavior was evaluated as a potential mediator of this association. Heavy drinking, sexually active college students (N = 297, 50.2% women) completed self-report measures of drinking protective behavioral strategies, alcohol consumption, and sex-related alcohol negative consequences. Findings indicated that women who used drinking protective behavioral strategies more frequently were less likely to experience sex-related alcohol negative consequences whereas this relationship was not significant for men. For women, this relationship was mediated by the typical number of drinks consumed during sexual behavior. The current research demonstrates that use of drinking protective behavioral strategies is related to a reduction in women's sex-related risks when drinking. Findings are discussed in terms of alcohol myopia theory. Implications for interventions aimed to reduce higher risk sexual behavior among college students are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
27.
Critiques J. Olds' (1969) interpretation of hippocampal anatomy in terms of close analogy to the all-to-all grids of electronic computer random-access memory devices and compares it to other evolving interpretations of hippocampal circuitry. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
28.
J. S. Shepitka C. E. Case L. G. Donaruma M. J. Hatch N. H. Kilmer G. D. Khune F. D. Martin J. S. Ward K. V. Wilson 《应用聚合物科学杂志》1983,28(12):3607-3610
Due to the high chain transfer to monomer, the homopolymerization of methacrylamide yields polymers of extremely low molecular weight. On partial alkaline hydrolysis, the viscosities of these polymers in aqueous solution are much inferior to those of partially hydrolyzed polyacrylamide (HPAM). However, polymethacrylamides prepared by room temperature, persulfate-initiated polymerization in the presence of small amounts of N,N′-methylenebisacrylamide demonstrate posthydrolysis reduced viscosities in 0.01% NaCl comparable to typical commercial HPAM materials. 相似文献
29.
Louis C. Kilmer Allen M. Barnett 《Progress in Photovoltaics: Research and Applications》1993,1(3):181-192
The performance of InP solar cells has been limited by low open-circuit voltages. While the reported short-circuit current densities are approaching the theoretical limit, the open-circuit voltages have yet to obtain what is expected from a semiconductor with a direct band gap of 1.35 eV. This work investigates the factors that determine the open-circuit voltage and presents the design and fabrication of a novel high open-circuit voltage p-n InP solar cell. the key aspect of the novel design is a complete analysis of the top contact metallization effects on the reverse saturation current density and the open-circuit voltage. the features of the design are not specific to InP solar cells but are applicable to other advanced material solar cells that require a thin emitter for an optimal design (those materials with a high absorption coefficient). By minimizing the reverse saturation current density, a high open-circuit voltage and high efficiency may be obtained. In addition, a complete analysis of the solar cell modelling is provided, with comparisons to other published InP solar cell models and device results to juxtapose the key material and design parameter effects. 相似文献
30.