1000 resultados para Lefschetz number


Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper addresses the question of how much intervention is necessary for the effective treatment of problem gambling by exploring the relationship between the number of counselling sessions attended and the degree of problem resolution achieved for 613 individuals who attended problem gambling counselling services in Victoria. While those who achieved partial or full resolution of presenting problems attended more sessions than those who finished counselling with their problems still unresolved, problems were typically reported as being resolved in fewer than five sessions. It is concluded that for some problem gamblers a relatively brief intervention may be sufficient.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper uses data from several sources to argue that while teachers of young children are reasonably accurate in their predictions of when the majority of children will achieve mastery of specific objectives in mathematics, they are much less likely 10 be aware of the conceptions of high achieving children, and that, as a result, their classroom activities constrain these students' learning.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://digitalcommons.colby.edu/atlasofmaine2005/1018/thumbnail.jpg

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Montessori Cards are shown in the recently reprinted classic curriculum handbook (yellowcovered) 'Guidelines in Number' (1985, p 18). Unfortunately, exactly what this small, and limited sketch-picture might mean, in practice, is not necessarily clear. The use of Montessori number cards is discussed.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The research reported in this paper investigated the measurement of brand associations across three product categories. Brand associations had not been tested previously across all three categories of fast-moving consumer good, service, and durable in the one study. A free association method was used to generate brand associations for a fast-moving consumer good (shampoo), a service (banks) and a durable good (cars). The findings indicate that the first brand a respondent recalled has the greatest number of positive, unique and total brand associations. In addition, the findings indicated that durable goods have the highest number of associations, and the greatest number of unique and favourable brand associations. Further, banks and financial services had the fewest positive associations, which may have reflected attitudes to banks at the time of the research. These findings have implications for the manner in which respondents use information to recall brands, and how they process brand information when faced with a cue. Respondents use a depth and breadth of brand associations to generate brand information.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper investigates the problem of localizing a wireless transmitter using a minimum number of receivers and other readily available means in a time difference of arrival (TDOA) setting. Using the necessary and sufficient conditions for unique solution, we use power measurements to compensate for the reduced number of receivers. In other words, if the transmitter is not located in the unique solution area, we provides a technique to find the true location via the measured received signal power. Our approach neither requires the knowledge of the transmission power nor the path loss exponent.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Background:
Physical activity (PA) is inversely associated with obesity but the effect has been difficult to quantify using questionnaires. In particular, the shape of the association has not yet been well described. Pedometers provide an opportunity to better characterize the association.

Methods:
Residents of households over the age of 25 years in randomly selected census districts in Tasmania were eligible to participate in the AusDiab cross-sectional survey conducted in 1999–2000. 1848 completed the AusDiab survey and 1126 of these (609 women and 517 men) wore a pedometer for 2-weekdays. Questionnaire data on recent PA, TV time and other factors were obtained. The outcomes were waist circumference (in cm) and body mass index (BMI) (kg/m2).

Results:
Increasing daily steps were associated with a decline in the obesity measures. The logarithmic nature of the associations was indicated by a sharper decline for those with lower daily steps. For example, an additional 2000 steps for those taking only 2000 steps per day was associated with a reduction of 2.8 (95% confidence interval (CI): 2.1,4.4) cm in waist circumference among men (for women; 2.2 (95% CI: 0.6, 3.9 cm)) with a baseline of only 2000, steps compared to a 0.7 (95% CI 0.3, 1.1) cm reduction (for women; 0.6 (95% CI: 0.2, 1.0)) for those already walking 10 000 steps daily. In the multivariable analysis, clearer associations were detected for PA and these obesity measures using daily step number rather than PA time by questionnaire.

Interpretation:
Pedometer measures of activity indicate that the inverse association between recent PA and obesity is logarithmic in form with the greatest impact for a given arithmetic step number increase seen at lower levels of baseline activity. The findings from this study need to be examined in prospective settings.