BOOK REVIEW     

Jane Robertson 《International Journal for Academic Development》2013,18(1):79-81

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Informing in-season tactical periodisation in team sport: development of a match difficulty index for Super Rugby     

Samuel J. Robertson  David G. Joyce 《Journal of sports sciences》2015,33(1):99-107

In team sports, tactical periodisation refers to the planned manipulation of training loads with the aim of prioritising athlete readiness for matches of greatest importance. Although monitoring of athletes’ physical condition is often used to inform this planning, the direct influence of external factors on match difficulty has not been well quantified. In this study, a ‘match difficulty index’ (MDI) for use in Super Rugby was developed, based on the influence imparted by five external factors on previous match outcomes. Specifically, information relating to match location, days break between matches, time-zone change and opposition ladder position (both current and previous year) were collected for matches played during the 2011–2013 Super Rugby seasons. Logistic regression analyses were used to assess the importance of each of these factors with respect to match outcome (win/loss), with opposition ladder position and match location (home, domestic away or international) exerting the greatest influence on match difficulty. Three separate cross-validated models were constructed, with match outcome classification performance reported as 66.2%, 65.5% and 63.7% respectively. The three MDI models emanating from this study can each be used to inform tactical periodisation program design both prior to and during the regular season.  相似文献   

The impact of childhood foster care and other out-of-home placement on homeless women and their children     

Zlotnick C  Robertson MJ  Wright MA 《Child abuse & neglect》1999,23(11):1057-1068

OBJECTIVE: This study compares homeless women who had childhood histories of foster care or other out-of-home placement to those who have not. METHOD: A countywide probability sample of homeless women (n = 179) received structured interviews. RESULTS: One-third of homeless women reported being raised apart from their parents. Among women with children under age 18, most (61.5%) had children who had lived in foster care or other out-of-home placements. Variables associated with homeless mothers' children living in foster care or other out-of-home placements were: Child was school-age, mother was age 35 or older, mother had a current alcohol or drug use disorder, mother experienced childhood sexual abuse, and mother ran away from home (when under age 18). CONCLUSIONS: Parenting is difficult for homeless mothers who may need to place their children with others to facilitate school attendance. Parent-child interaction may be problematic in family shelters where privacy is rare. Thus, programs promoting family preservation for homeless mothers should provide parenting support as well as permanent housing.  相似文献   

Social Class and Educational Research     

T. S. Robertson 《Educational research; a review for teachers and all concerned with progress in education》2013,55(3):189-197

Social class has always been one of the most prominent variables in educational research, yet the various ways of classifying it have never ceased to be controversial. The author reviews the major classifications, assesses their validity, surveys the use made of them in research literature, suggests how they should be interpreted, and assesses to what degree findings couched in these terms correspond to the reality of social differences in Britain.  相似文献   

Trust: the power that binds in team supervision of doctoral students     

Margaret J. Robertson 《高等教育研究与发展》2017,36(7):1463-1475

Team supervision of doctoral students adds new dimensions and complexities to relationships within the teams that impact functionality of the team. Trust emerged as a significant theme in recent qualitative research into the quality of team supervision of doctoral students. Trust was cited as a key component in successful team collaborations, and the missing component in dysfunctional teams. Definitions refer to trust as the belief of truthfulness, reliability or faith in another person’s abilities. My hypothesis is that trust operates as a form of power in team supervision. It is a form of power that enables voice, resilience and creativity in teams. This article concludes that placing trust in others in supervisory teams is a deliberate decision by candidates and supervisors. It is a decision to engage in a team context despite known risks and may be understood as a gamble on the reliability of others in the expectation of reciprocity. By conceptualising trust as a form of power, strategies that engender and maintain trust may be utilised more intentionally.  相似文献   

Laplace Transforms Without Integration     

Robert L. Robertson 《PRIMUS》2017,27(6):606-617

Calculating Laplace transforms from the definition often requires tedious integrations. This paper provides an integration-free technique for calculating Laplace transforms of many familiar functions. It also shows how the technique can be applied to probability theory.  相似文献   

A Tribute to Hans Hoxter     

Sharon Robertson 《International journal for the advancement of counseling》2003,25(2-3):131-132

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The high–technology editorial guide and stylebook Lewis Perdue Homewood,IL: Business One Irwin, 1991 x, 194 pp With diskette £25.99 1–55623–531–3 (PC edition) 1–55623–530–5 (Macintosh edition)     

Michael Robertson 《Learned Publishing》1995,8(1):66-66

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The development of some physical science concepts in secondary school students     

W. W. Robertson  E. Richardson 《科学教学研究杂志》1975,12(4):319-329

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Development of the Nine-Ball Skills Test to discriminate elite and high-level amateur golfers     

Robertson SJ  Burnett AF  Newton RU  Knight PW 《Journal of sports sciences》2012,30(5):431-437

Currently, there is a lack of appropriate skill assessments available for use in golf. The aim of this study was to examine the discriminative validity and the test-retest reliability of the newly developed "Nine-Ball Skills Test". Participants of two ability levels (elite, n = 14; high-level amateur, n = 16) each hit nine golf shots of differing combinations of trajectory (straight, fade, draw) and height (normal, high, low) at an individually determined target area. Each shot was scored on its percent error index from the target and whether it achieved the maximum height as required. Participants completed the test twice using a 5-iron club. The elite group scored significantly higher (P < 0.05) than the amateur group for both the first and second rounds of the test as well as the combined scores. The between-round test-retest reliability was deemed to be not acceptable, thus we propose that the test's protocol should include use of the two rounds as standard. Due to the importance of ball striking and flight control to performance in golf, the Nine-Ball Skills Test is appropriate for providing a measure of this skill component in elite and high-level amateur golfers.  相似文献