967 research outputs found
A Study of the Career Education Needs of Freshman and Senior Students in the Midland Independent School District
This study examined the career education needs of students and obtained information that will be beneficial to those involved in implementing career education into the existing curriculum at the local level. The major problem which this study addressed was the need to gather and evaluate information about learners in terms of their career education needs. Specifically developed for this purpose, the survey test of the Texas Career Education Measurement Series was used to identify student strengths and weaknesses in each of the 9 Basic Learner Outcome Categories for Career Education (Appendix E) and 26 sub-categories. The test was administered to a random sample of 240 students, 120 freshmen and 120 Seniors representing the school district at large. The results demonstrated first, that in three categories of the survey test 50 percent or more of the freshmen tested showed weakness while in no categories did 50 percent or more of the seniors tested show weakness. Second, results showed that in nine of the 26 sub-categories 50 percent or more of the freshmen tested showed weakness while 50 percent of the seniors tested showed weakness in only two sub-categories. Third, results showed that a lower percentage of seniors displayed weakness on every sub-category than did freshmen. Results indicate that the learner outcomes for career education are to some degree presented in the present curriculum between the ninth and twelfth grades
Reentry static stability characteristics of a (Model 471) .005479-scale 146-inch solid rocket booster tested in the NASA/MSFC 14 by 14 inch TWT (SA8F)
A force test of a scale model of the Space Shuttle Solid Rocket Booster was conducted in a trisonic wind tunnel. The model was tested with such protuberances as a camera capsule, electrical tunnel, attach rings, aft separation rockets, ET attachment structure, and hold-down struts. The model was also tested with the nozzle at gimbal angles of 0, 2.5, and 5 degrees. The influence of a unique heat shield configuration was also determined. Some photographs of model installations in the tunnel were taken and are included. Schlieren photography was utilized for several angles of attack
Pluralistic ignorance concerning alcohol usage among recent high school graduates
Recent high school graduates in a midwestern community estimated their classmates\u27 attitudes toward alcohol use in contrast to their own positions. Attitudes were assessed on three levels: subjective comfort with others\u27 drinking, approval of peer drinking and actual drinking practices. Pluralistic ignorance was found to be a significant factor at all three levels, p \u3c .0005. Respondents reported that they were less comfortable, less approving, and drank less than close friends, lesser still than friends, and far less than peers. These findings provide support for normative education prevention programs that attempt to correct erroneous perceptions about alcohol use and abuse
Fit for purpose? Pattern cutting and seams in wearables development
This paper describes how a group of practitioners and researchers are working across disciplines at Nottingham Trent University in the area of Technical Textiles. It introduces strands of ongoing enquiry centred around the development and application of stretch sensors on the body, focusing on how textile and fashion knowledge are being reflexively revealed in the collaborative development of seamful wearable concepts, and on the tensions between design philosophies as revealed by definitions of purpose. We discuss the current research direction of the Aeolia project, which seeks to exploit the literal gaps found in pattern cutting for fitted stretch garments towards experiential forms and potential interactions. Normative goals of fitness for purpose and seamlessness are interrogated and the potential for more integrated design processes, which may at first appear ‘upside down’, is discussed
Evaluating Sedimentary Geochemical Lake-Level Tracers in Walker Lake, Nevada, Over the Last 200 Years
Walker Lake, a hydrologically closed, saline, alkaline lake located along the western margin of the Great Basin of western United States, has experienced a 77% reduction in volume and commitment drop in lake level as a result of anthropogenic perturbations and climatic fluctuations over the last century. The history of lake-level change in Walker Lake has been recorded instrumentally since 1860. A high-resolution multi-proxy sediment core record from Walker Lake has been generated through analysis of total inorganic carbon (TIC), total organic carbon (TOC), and oxygen and carbon isotope ratios (δ18O and δ13 C) of both downcore bulk TIC and ostracods over the last 200 yr. This allows us to examine how these sediment indices respond to actual changes in this lake’s hydrologic balance at interannual to decadal timescales. In Walker Lake sediments, changes in %TIC, %TOC, and δ13C and δ18O of TIC and ostracods are all associated to varying degrees with changes in the lake’s hydrologic balance, with δ18O of the TIC fraction (δ18OTIC) being the most highly correlated and the most effective hydrologic indicator in this closed-basin lake. The δ18OTIC record from Walker Lake nearly parallels the instrumental lake-level record back to 1860. However, comparison with sporadic lake-water δ18O and dissolved inorganic carbon δ13C (δ13CDIC) results spanning the last several decades suggests that the isotopic values of downcore carbonate sediments may not be readily translated into absolute or even relative values of corresponding lake-water δ18O and δ13CDIC. Changes in the lake’s hydrologic balance usually lead to changes in isotopic composition of lake waters and downcore sediments, but not all the variations in downcore isotopic composition are necessarily caused by hydrologic changes
The Moderating Effects of “Dark” Personality Traits and Message Vividness on the Persuasiveness of Terrorist Narrative Propaganda
Terrorism researchers have long discussed the role of psychology in the radicalization process. This work has included research on the respective roles of individual psychological traits and responses to terrorist propaganda. Unfortunately, much of this work has looked at psychological traits and responses to propaganda individually and has not considered how these factors may interact. This study redresses this gap in the literature. In this experiment (N = 268), participants were measured in terms of their narcissism, Machiavellianism, subclinical psychopathy, and everyday sadism—collectively called the Dark Tetrad. Participants were then exposed to a vivid or nonvivid terrorist narrative (or a control message). Results indicate that Machiavellianism interacts with both narrative exposure and narrative vividness to amplify the persuasive effect of terrorist narratives. Neither narcissism, subclinical psychopathy, nor everyday sadism had such an effect. These results highlight the importance of considering the psychological traits of audiences when evaluating proclivity for radicalization via persuasion by terrorist narratives
Mechanistic studies on the copper-catalyzed N-arylation of alkylamines promoted by organic soluble ionic bases
Experimental studies on the mechanism
of copper-catalyzed amination
of aryl halides have been undertaken for the coupling of piperidine
with iodobenzene using a Cu(I) catalyst and the organic base tetrabutylphosphonium
malonate (TBPM). The use of TBPM led to high reactivity and high conversion
rates in the coupling reaction, as well as obviating any mass transfer
effects. The often commonly employed O,O-chelating ligand 2-acetylcyclohexanone
was surprisingly found to have a negligible effect on the reaction
rate, and on the basis of NMR, calorimetric, and kinetic modeling
studies, the malonate dianion in TBPM is instead postulated to act
as an ancillary ligand in this system. Kinetic profiling using reaction
progress kinetic analysis (RPKA) methods show the reaction rate to
have a dependence on all of the reaction components in the concentration
range studied, with first-order kinetics with respect to [amine],
[aryl halide], and [Cu]<sub>total</sub>. Unexpectedly, negative first-order
kinetics in [TBPM] was observed. This negative rate dependence in
[TBPM] can be explained by the formation of an off-cycle copper(I)
dimalonate species, which is also argued to undergo disproportionation
and is thus responsible for catalyst deactivation. The key role of
the amine in minimizing catalyst deactivation is also highlighted
by the kinetic studies. An examination of the aryl halide activation
mechanism using radical probes was undertaken, which is consistent
with an oxidative addition pathway. On the basis of these findings,
a more detailed mechanistic cycle for the C–N coupling is proposed,
including catalyst deactivation pathways
Late Holocene Lake-Level Fluctuations in Walker Lake, Nevada, USA
alker Lake, a hydrologically closed, saline, and alkaline lake, is situated along the western margin of the Great Basin in Nevada of the western United States. Analyses of the magnetic susceptibility (χ), total inorganic carbon (TIC), and oxygen isotopic composition (δ18O) of carbonate sediments including ostracode shells (Limnocythere ceriotuberosa) from Walker Lake allow us to extend the sediment record of lake-level fluctuations back to 2700 years B.P. There are approximately five major stages over the course of the late Holocene hydrologic evolution in Walker Lake: an early lowstand (\u3e 2400 years B.P.), a lake-filling period (∼ 2400 to ∼ 1000 years B.P.), a lake-level lowering period during the Medieval Warm Period (MWP) (∼ 1000 to ∼ 600 years B.P.), a relatively wet period (∼ 600 to ∼ 100 years B.P.), and the anthropogenically induced lake-level lowering period (\u3c 100 years B.P.). The most pronounced lowstand of Walker Lake occurred at ∼ 2400 years B.P., as indicated by the relatively high values of δ18O. This is generally in agreement with the previous lower resolution paleoclimate results from Walker Lake, but contrasts with the sediment records from adjacent Pyramid Lake and Siesta Lake. The pronounced lowstand suggests that the Walker River that fills Walker Lake may have partially diverted into the Carson Sink through the Adrian paleochannel between 2700 to 1400 years B.P
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Reducing the Harm of Intimate Partner Violence: Randomized Controlled Trial of the Hampshire Constabulary CARA Experiment
Research Question: Among Southampton-area males arrested for and admitting to low-risk intimate partner violence as a first domestic offence and receiving a conditional caution, did a randomly assigned requirement to attend (with 5 to 7 other male offenders), two weekend day-long Cautioning and Relationship Abuse (CARA) workshops led by experienced professionals reduce the total severity of crime harm relative to a no-workshop control group?
Data: Eligible offenders (N =293) were randomly assigned to the CARA workshop attendance requirement (n= 154) or to the no-workshop requirement (n = 139), with 91% of all cases receiving treatment as randomly assigned. Each offender’s records of police contact were tracked for exactly 365 days after the date of random assignment.
Methods: All repeat arrests or complaints of crime naming the 293 randomly assigned offenders were coded by the Cambridge Crime Harm Index (CHI) as the primary outcome measure for each offender (Sherman et al 2016), with the sum of total days of recommended imprisonment for each offence (as the guideline starting point for sentencing) summed across all new offences, with both domestic and non-domestic relationships to their victims. Prevalence and frequency of repeat contact were also computed. All analysis was done by intention-to-treat.
Findings: Offenders assigned to the workshop group were re-arrested for crimes with a total Crime Harm Index (CHI) value that was 27% lower than for re-arrests of offenders assigned to the control group (P =.011). The CARA workshop group members were arrested for crimes totalling an average of 8.4 days of recommended imprisonment under English sentencing guidelines, compared to an average of 11.6 days per offender assigned to the control group, the equivalent of 38% more harm without the workshop than with it. The effect size was much stronger, however, in the first study period of high caseflow (72% reduction in CHI, P = .001) than in the second period (21% reduction in CHI, P =.178). Frequency of re-arrest for domestic abuse (21% lower for workshop-assigned group) and prevalence (35% lower for workshop-assigned group) also favoured the CARA workshop group.
Conclusions: The results of this one-year followup analysis suggest that the CARA workshops are an effective way to reduce the future harm of domestic abuse among first offenders who admit their crime, although effect size may vary over time. Given the highly restrictive eligibility criteria for the programme, these findings provide an evidence-based reason for testing the same treatment among a larger proportion of all first-offender arrests for domestic abuse. Keywords Intimate partner violence – policing – RCT—Crime Harm Index--CAR
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