This paper examines the relationship between family structure and child poverty in Canada over the 1981-1997 period. While recognising the many methodological and conceptual difficulties encountered in efforts to document child poverty over time, two alternate indicators are used, Statistics Canada’s official low income cut-offs, and an alternate indicator of "deep poverty”. Using the Survey of...

We consider the max-cut problem on a random graph G with n vertices and weights wij being independent bounded random variables with the same xed positive expectation and variance . It is well known that the max-cut number mc(G) always exceeds 2 ∑ i¡j wij . We prove that with probability greater than pn the max-cut number satis es

A short proof of a difficult theorem of P.D. Seymour on grafts with the max-flow min-cut property is given.

background: population based research contributes to our understanding of cancer at many levels. for health program planning and policy making it is important to have information about the incidence of the common cancers in the population. descriptive epidemiologic studies measure the occurrence of cancer and other health-related factors in relation to person (e.g. age, sex, race, social class,...

conclusions it seems that the incidence of different types of stroke-induced aphasia in ahvaz is influenced by the calendar-temporal changes. according to the findings, to prevent the occurrence of stroke-induced aphasia, necessary counseling should be provided for lifestyle changes. results according to the obtained results 39.9% of the studied patients had a stroke-induced aphasia. the highes...

the present study aimed to explore some risk factors affected the mean of the number of tuberculosis (tb) in west azerbaijan province, iran between 2001 and 2010.our time series study analyzed the data of 2,560 tb patients as registered with tb patients care system in west azerbaijan province from early 2001 to 2010. a checklist was prepared for collecting the data and they were then analyzed i...

background : ardabil cancer registry is the first population-based cancer registry in iran that was established in 2000. the first report from this registry revealed that ardabil has one of the highest rate of gastric cardia cancer and the lowest rate of cer­vical cancer in the world. we aim to update the cancer incidence in this area by the second follow up report from this registry. method : ...

purpose: the purpose of this research was to determine the prevalence of mandibular first premolar teeth with 2 canals in the population of kerman. methods & materials: a total of 280 extracted first premolar teeth were collected from several health service centers within the province of kerman.extracted teeth were stored in 10% formalin containers. each tooth was initially cleaned with water a...

background: environment of basrah is seriously contaminated with chemical leukomogens as a result of recent military conflicts. many studies in the past few years have reported an increase in the incidence of leukemia in basrah. this study was designed to study the risk and pattern of childhood leukemia in basrah, iraq, from 2003 to 2007.materials and methods: this hospital-based cancer registr...

background:  cancer is the third leading cause of death in iran, and its trend is increasing in recent years. national reports state that cancer registries in shahroud district had 204% coverage in 2008. this study investigated cancer situation in shahroud with complete details between 2000–2010. methods: data was obtained from national cancer registry software and analyzed after removing the r...