8,265 research outputs found

    Australian Ground Stone Hatchets: Their Design and Dynamics

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    The general purpose tool of the Australian Aborigines, usually known as a stone axe, is more correctly termed a hatchet since it conforms to the design requirements of a tool made for one-handed use. Similar implements not so conforming appear to be special purpose tools. A geometrical feature common to all these tools and perhaps to other types is the 'median plane' which determines the position of the edge and governs some of its operational properties. Some dynamical features of stone hatchet heads, the design of handles for them and their security of mounting are examined and compared with the features of modern steel hatchets

    CONVICTION CELERITY, PUNISHMENT SEVERITY, AND TREATMENT COMPLIANCE AS PREDICTORS OF DUI RECIDIVISM: MEDIATION AND MODERATION MODELS OF DETERRENCE

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    Driving under the influence (DUI) is one of the most frequently committed offenses in the United States and approximately one-third of DUI offenders are recidivists. Researchers have evaluated multiple DUI prevention approaches, most of which have been rooted in deterrence theory. Recently, the criminal justice system has moved away from deterrence-based approaches and begun employing various forms of rehabilitation to reduce DUI recidivism. This shift in the criminal justice system has lead researchers to begin exploring the effects of rehabilitation on DUI offenders, including an examination of offender compliance with rehabilitation programs. Although each of these areas has been investigated separately, existing studies have not incorporated deterrence-related measures, rehabilitation compliance, and offender recidivism into a single model. Utilizing a statewide sample of Kentucky DUI offenders, the primary goal of this dissertation was to examine whether rehabilitation compliance mediates the relationship between deterrence-related variables (conviction celerity and punishment severity) and DUI offender recidivism. Second, because existing studies have produced inconclusive or mixed results regarding deterrence among DUI offenders, analyses were conducted to examine the potential moderating effects of age, gender, substance use problem severity, and location on the relationship between deterrence-related variables and DUI recidivism. Overall, the hypothesized mediation models were unsupported. There was no direct correlation between the deterrence-related variables and DUI recidivism. In addition, while there was some evidence of moderation, the hypothesized moderation models were also largely unsupported. Despite these results, compliance was significantly related to DUI recidivism in all four models, and there was evidence of relationships between both compliance and DUI recidivism with age, gender, problem severity, and location. Findings highlight the importance of compliance and social and environmental variables in predicting DUI recidivism, suggesting that these variables may be more accurate predictors of DUI recidivism than deterrence-based variables. Results demonstrate a need for the criminal justice system to place more emphasis on offenders’ treatment needs, treatment accessibility, and retention of DUI offenders in rehabilitation programs in order to decrease DUI recidivism

    Alien Registration- Dickson, John F. (Waldoboro, Lincoln County)

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    https://digitalmaine.com/alien_docs/12899/thumbnail.jp

    Genetic Family and Stock Type Influence Simulated Loblolly Pine Yields from Wet Sites

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    Planting adapted families or a bulked seedlot of bare-root and container-grown-seedlings of loblolly pine (Pinus taeda L) were contrasted as cost effective alternatives for regenerating Arkansas\u27 wet sites. Survival data from two wet sites were used to simulate 15 years of growth. Containerized seedlings provided 17% greater survival than bare-root seedlings, but yielded a lower present net worth than bare-root seedlings. Planting families adapted to excessive moisture provided 7% greater survival and yielded a greater present net worth than planting a bulked seedlot consisting of adapted and poorly adapted families

    MECHANICAL LOADING OF THE LUMBAR SPINE OF ELITE ROWERS WHILE ROWING FIXED AND SLIDING ERGOMETERS

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    Low back injury is common in rowers. This study compared compressive forces of the lumbar spine, while rowing on fixed and sliding ergometers. Fifteen elite male rowers with no history of serious low back injury rowed the Concept2 Fixed (C2F), Concept2 Sliding (C2S) and RowPerfect (RP) ergometers at 32 strokes/min while 3D motion and external force data were recorded. Inverse dynamics analysis was used to find net lumbar moment and a lumbar model used to model compressive forces acting at L4/L5. Compressive force was significantly larger on C2F, at the catch and for 45 % of the stroke. Rowing on the C2F ergometer places greater compressive stress on the lumbar spine
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