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91.
92.
The authors studied the adjustment of the 2 distinct known expressions of gait velocity, the velocity of the center of gravity (CG) and the velocity of the center of foot pressure (CP) at the end of the 1st step in 2 experimental situations: natural gait initiation (the control situation, CS) and heel-off gait initiation (the test situation, TS). Gait was initiated by 7 healthy participants, from an erect spontaneous posture in the CS and from a posture with heels raised in the TS, on a force platform at 3 self-selected speed conditions. Biomechanical data from the force platform were collected in both experimental situations, and the authors used a particular gait analysis based on the differential method of Y. Brenière (2003) in order to approach velocity modulation by means of step length and frequency. Results showed that CG and CP velocities were adjusted differently during heel-off gait initiation than during natural gait initiation. CP velocity, as compared with CG velocity, was overestimated in TS. Results also established the relevance of the expression of step velocity by means of step length and frequency: The central nervous system, taking into account the specific postural constraints of each experimental situation, uses a reference value and a regulating parameter to modulate step velocity. Moreover, the contributions of 1st step length and frequency to the expression of step velocity in TS and CS were different. Thus, a specific locomotor behavior corresponds to a given experimental situation that is characterized by its own initial biomechanical constraints. 相似文献
93.
Mrs. Aremac and the Camera: A Response to Ryberg 总被引:1,自引:1,他引:0
Annabelle Lever 《Res Publica》2008,14(1):35-42
In a recent article in Res Publica, Jesper Ryberg argues that CCTV can be compared to a little old lady gazing out onto the
street below. This article takes issue with the claim that government surveillance can be justified in this manner. Governments
have powers and responsibilities that little old ladies lack. Even if CCTV is effective at preventing crime, there may be
less intrusive ways of doing so. People have a variety of legitimate interests in privacy, and protection for these is important
to their status as free and equal citizens. Consequently, though necessary, effectiveness is insufficient to justify CCTV
in a democracy.
相似文献
Annabelle LeverEmail: |
94.
Parents Taking Action: A Psycho‐Educational Intervention for Latino Parents of Children With Autism Spectrum Disorder
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The increased prevalence of autism spectrum disorder (ASD) among Latino children, later diagnosis, limited access to bicultural specialist support, and worsened health outcomes when compared to non‐Latinos points to the need for a culturally relevant parent education intervention. This pilot study examined the feasibility, acceptability, and preliminary outcomes of a culturally derived intervention, Parents Taking Action, for 19 Spanish‐speaking mothers of children with ASD. This study introduces the Promotora de Salud Model of intervention delivery to the autism field. A mixed‐methods design including one group pre‐ and posttest design and focus groups was used to evaluate the outcomes of PTA. We found that the intervention was both feasible to implement and acceptable to participants. We also found significant increases in empowerment oriented outcomes for parents between pre‐ and posttest suggesting that the intervention is promising. Suggestions for future research and practice are offered. 相似文献
95.
AbstractIn this paper, we explore the issue of the elimination of sports, or elements of sports, that present a high risk of brain injury. In particular, we critically examine two elements of Angelo Corlett’s and Pam Sailors’ arguments for the prohibition of football and Nicholas Dixon’s claim for the reformation of boxing to eliminate blows to the head based on (a) the empirical assumption of an essential or causal connection between brain injuries incurred in football and the development of a degenerative brain disease known as chronic traumatic encephalopathy (CTE); and (b) John Stuart Mill’s rejection of consensual domination (ie voluntary enslavement). We present four arguments to contest the validity of Corlett, Dixon’s and Sailor’s positions. Specifically, we argue that (i) certain autonomy-based arguments undermine paternalist arguments for reform; (ii) the nature of the goods people pursue in their lives might justify their foregoing (degrees of) future autonomy; (iii) Mill’s argument against consensual domination draws on ambiguous and arbitrary distinctions; (iv) the lack of consensus and empirical evidence regarding CTE arising from brain injuries in sport underdetermines calls for reform. We conclude that these proposals for reforming or eliminating sports with high risks of brain injuries are not well founded. 相似文献
96.
Susana C. Marques Shane J. Lopez J. L. Pais-Ribeiro 《Journal of Happiness Studies》2011,12(1):139-152
The authors investigated the effectiveness of a 5-week hope-based intervention designed to enhance hope, life satisfaction,
self-worth, mental health and academic achievement in middle school students. The study includes a sample of 31 students from
a community school, a matched comparison group of 31 students, and 2 secondary groups—guardians and teachers of the students’
intervention group. Students completed a questionnaire packet that included demographic information, the Portuguese versions
of the Children’s Hope Scale, Students’ Life Satisfaction Scale, Mental Health and Self-Worth Scales. Academic achievement
was obtained from school records. At baseline, groups are statistically similar on the variables of interest. At post-test
the intervention group had enhanced hope, life satisfaction and self-worth. In the intervention group, benefits in hope, life
satisfaction and self-worth were maintained at the 18-month follow up. Results suggest that a brief hope intervention can
increase psychological strengths, and participants continue to benefit up to 1-year and 6-months later. 相似文献
97.
Elective cosmetic surgeries are increasing in the American population with reasons linked to body image disturbance and body dysmorphic disorder (BDD). Little research exists documenting the continuum of body image disturbance and its relationship to seeking surgery. The present research examined data from 544 participants, 55 of whom were diagnosable with BDD. Using assessments for body image disturbance, problematic coping strategies, and BDD symptomatology, results provided evidence for a continuum of body image distress. Logistic regression analysis supported the hypothesis that increased levels of body image disturbance and one type of problematic coping strategy (Appearance Fixing) predicted consideration of cosmetic surgery. Of participants diagnosable with BDD, those who considered cosmetic surgery showed more severe body image disturbance and problematic coping than those who did not consider surgery. These results have implications for pre-surgical assessment as well as psychological interventions rather than invasive medical interventions. 相似文献
98.
Diaz del Campo DG Gonzalez Villora S Garcia Lopez LM Mitchell S 《Perceptual and motor skills》2011,112(3):871-888
This cross-sectional study investigated the differences between young expert soccer players' (n = 55) and novice players' (n = 74) decision-making ability during performance of invasion games (ages: 7-8, 9-10, 11-12, and 13-14 years). Decision-making ability was assessed in invasion games that were appropriately modified for age and expertise. Games were modified to meet the developmental needs and previous learning of the participants, so interference between motor execution and decision making was minimized. Game performance was videotaped, and measures of cognitive components were developed from observational analysis. Decision making was measured at two levels: (a) decision making restricted to the selection of the technical-tactical skills (passing, moving with the ball, getting free, marking, tackling, double teaming, and interception) and (b) decision making in the adaptation to the tactical context of the game. Expert players remained superior in decision-making ability when variation in skill execution was controlled. Decision-making differences between levels of expertise decreased with age with regard to the first level (skill selection) and increased with age in relation to the second level (tactical-context adaptation). Findings are discussed in terms of implications for instructional focus and task design. 相似文献
99.
Shane J. Lopez Lisa M. Edwards Jennifer Teramoto Pedrotti Ellie C. Prosser Stephanie LaRue Susan Vehige Spalitto Jon C. Ulven 《Journal of counseling and development : JCD》2006,84(3):259-267
Current diagnostic processes reflect the limitations and utility of the framework of the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM‐IV; American Psychiatric Association, 1994). Clinical information in the DSM‐IV's 5‐axis system almost exclusively focuses on weaknesses and pathology and is summarized in a flawed categorical system. Hence, the authors describe 3 adjunctive, or alternative, means of conceptualizing behavior; several means of altering the current DSM‐IV system; and 2 future directions in the diagnosis of strengths. 相似文献
100.