Objective To investigate the association between self-perceived health, and sociodemographic and clinical factors in a sample of elderly outpatients in Rio de Janeiro. Methods A sample of 345 elderly patients was assessed with an anamnesis, Lawton and Brody's Scale, Katz Index, Geriatric Depression Scale, Timed Up and Go Test, and Study of Osteoporotic Fracture Index. Logistic regression anal...

Studies of the urine-based point-of-contact cathodic circulating antigen test (POC-CCA) in Schistosoma mansoni-endemic settings in Africa indicate it has good sensitivity in detecting infections, but in areas of low prevalence, the POC-CCA can be positive for persons who are egg-negative by Kato-Katz stool assays. We examined the POC-CCA assay for: (a) batch-to-batch stability; (b) intra-reader...

This article analyzes the determinants of market income distribution and governmental redistribution. The dependent variables are LIS data on market income inequality (measured by the Gini index) for households with a head aged 25 to 59 and the percent reduction in the Gini index by taxes and transfers. We test the generalizability of the Goldin/Katz hypothesis that inequality has increased in ...

We give two definitions of trapdoor permutations. The first is completely formal, and maps well onto the (conjectured) trapdoor permutations that are used in practice. The second is slightly less formal, but is simpler to use and somewhat easier to understand. Generally speaking, however, proofs of security using the second of the two definitions can be easily modified to work for the first def...

In this paper, a new method is proposed to improve the canonical Katz back-off smoothing technique in language modeling. The process of Katz smoothing is detailedly analyzed and the global discounting parameters are selected for discounting. Further more, a modified version of the formula for discounting parameters is proposed, in which the discounting parameters are determined by not only the ...

This study was aimed at evaluating sleep quality and identifying sleep related problems among elderly people living in longterm care institutions in the city of São Paulo, Brazil. Subjects were 38 cognitively preserved elders living in these institutions for at least a year. Data collection was performed using the following instruments: Identification Form, Katz Index and Pittsburgh Sleep Quali...

The relative importance of nodes in a network can be quantified via functions of the adjacency matrix. Two popular choices of function are the exponential, which is parameter-free, and the resolvent function , which yields the Katz centrality measure. Katz centrality can be the more computationally efficient, especially for large directed networks, and has the benefit of generalizing naturally ...

BACKGROUND The Kato-Katz thick smear (Kato-Katz) is the diagnostic method recommended for monitoring large-scale treatment programs implemented for the control of soil-transmitted helminths (STH) in public health, yet it is difficult to standardize. A promising alternative is the McMaster egg counting method (McMaster), commonly used in veterinary parasitology, but rarely so for the detection o...

BACKGROUND Sense of Coherence (SOC) is defined as a tendency to perceive life experiences as comprehensible, manageable and meaningful. The construct is split in three major domains: Comprehensibility, Manageability, and Meaningfulness. SOC has been associated with successful coping strategies in the face of illness and traumatic events and is a predictor of self-reported and objective health i...