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21.
Using data from an original two‐wave panel survey of California high school students and a two‐wave panel survey of high school students in Chicago, we find that different pedagogical approaches influence different forms of civic and political engagement. Specifically, controlling for prior levels of engagement and demographic factors, we find that open discussion of societal issues promotes engagement with political issues and elections. In contrast, service learning opportunities increase community‐based and expressive actions. Both kinds of opportunities promoted commitments to participatory citizenship. These patterns can teach us about the kinds of opportunities (both in school and out) that can shape adolescents' civic and political development. 相似文献
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Paul A. Crow Jr 《The Ecumenical review》1987,39(2):154-162
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Subjects responded under LAG-5 reinforcement conditions after consuming alcohol in table wine (0.4 g/kg ethanol). For reinforcement (points), a four-response sequence from two buttons was required which differed from the previous five sequences of four responses. In addition, some subjects responded under restricted conditions in which sequences were limited to those of moving a cursor within a 3 x 3 matrix, while other subjects had no such restrictions. Also some subjects worked alone while others were accompanied by an experimenter. Analysis showed that compared to controls, men in the unrestricted condition who received alcohol showed increased uncertainty in responding while comparable women receiving alcohol showed a decrease in uncertainty of responding. The results are discussed in terms of previous work on alcohol and behavioral variability. 相似文献
25.
Abstract Titanium aluminides with a TiAl/Ti3Al two-phase microstructure exhibit mechanical properties which are superior to those for either single-phase TiAl or Ti3Al. The TiAl lamella in the two-phase microstructures show differently oriented TiAl regions which are frequently observed to coexist within the same TiAl lamella. The atomic arrangements of these regions are similar to antiphase domains/{011} twins of TiAl. However, the mechanism by which these regions are formed cannot be derived from the TiAl phase alone. This study suggests that, for two-phase titanium aluminides, Ti3Al has a strong influence on the development of the TiAl microstructure. 相似文献
26.
Fish and wildlife crime is an understudied area of criminology and criminal justice and when it is the focus of research, studies tend to be characterized by small samples and a lack of multivariate analyses. This study examines the nature and extent of cited fish and wildlife offenses and characteristics of offenders through quantitative analysis of 15,657 incidents of cited fish and wildlife offenses in Florida. The results indicate that a viable typology of wildlife crime is emergent and that there are important racial and ethnic differences across types of wildlife offenses. 相似文献
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C D Frith J T Richardson M Samuel T J Crow P J McKenna 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1984,36(1):133-144
Diazepam and hyoscine are known to have amnesic effects when administered intravenously. The two drugs are pharmacologically quite different from each other and might be expected to produce qualitatively distinct patterns of impairment in formal memory tasks. Groups of normal volunteers received intravenous administrations of diazepam, hyoscine and saline following a double-blind procedure and were then tested on immediate serial recall. Diazepam and hyoscine produced similar deficits on concrete and abstract words whether scored for ordered recall or item recall. In terms of ordered recall, phonemic similarity produced impaired performance under all three administrations, but semantic similarity did not. In terms of item recall, diazepam and hyoscine produced impaired performance on unrelated words, but the impairment was reduced under conditions of either phonemic or semantic similarity. There were also some interesting differences between diazepam and hyoscine in terms of their effects upon the shape of the serial-position curve and upon the types of intrusion error. The results confirm that both diazepam and hyoscine impair acquisition processes but fail to distinguish the effects of the two drugs upon different categories of encoding operations. 相似文献
28.
Rene A. Middleton Holly A. Stadler Carol Simpson Yuh‐Jen Guo Michele J. Brown Germayne Crow Kelly Schuck Yared Alemu Alejandro A. Lazarte 《Journal of counseling and development : JCD》2005,83(4):444-456
This study documents the relationship between White racial identity development and multicultural counseling competency (MCC) as reported by mental health practitioners. Initial results were generally consistent with J. E. Helms's (1990) construction of White racial identity attitude development theory. More sophisticated statuses of White racial identity development generally correlated with higher levels of perceived MCC. Overall, there was a significant difference in MCC reported between men and women. Among counselors, conflicting relationships were observed between some racial identity statuses and multicultural competencies (skills, relationship). 相似文献
29.
Schumm WR Reppert EJ Jurich AP Bollman SR Webb FJ Castelo CS Stever JC Sanders D Bonjour GN Crow JR Fink CJ Lash JF Brown BF Hall CA Owens BL Krehbiel M Deng LY Kaufman M 《Psychological reports》2002,90(2):639-653
A 1999 study of United Kingdom servicemembers by Unwin, et al. recently found significant relationships between anthrax and other vaccinations, reactions to those vaccines, and later health problems for male current or former active military Gulf War veterans. Likewise, in 2000 Steele and in 1998 Gilroy found possible adverse effects of vaccinations on Gulf War veterans. However, the role of such vaccinations remains controversial; more recent government reports continue to dispute the existence of any data that might reflect adversely on the role of vaccinations on the health of Gulf War veterans. To address this controversy, the current study assessed similar relationships for over 900 Reserve Component Gulf War Era veterans from Ohio and nearby states. Gulf War veterans were more likely to report poorer health than non-Gulf veterans. Female veterans were more likely to report mild or severe reactions to vaccines than male veterans. Those veterans who received anthrax vaccine reported more reactions to vaccines than those who did not receive anthrax vaccine. Declines in long-term subjective health were associated with receipt of anthrax vaccine by Gulf War veterans but not for those who did not deploy to the Gulf, although few of the latter received anthrax vaccine. Regardless of deployment status, veterans who reported more severe reactions to vaccines were more likely to report declines in subjective health. Female veterans reported poorer health during the Gulf War than did male veterans, but sex was not related to veterans' reports of subjective health at subsequent times. It is recommended that servicemembers who experience severe reactions to anthrax vaccine be medically reevaluated before receiving further anthrax vaccine and that careful follow-ups be conducted of those receiving the vaccine currently, in accordance with Nass's 1999 recommendations. We also recommend that safer alternatives to thimerosal (a mercury sodium salt, 50% mercury) be used to preserve all vaccines. 相似文献
30.