The detection of pathological changes in neurodegenerative diseases that occur before clinical onset would be of great value for identifying suitable subjects and assessing drug e cacy in trials aimed at preventing or slowing onset. Using MRI derived volumetric information, researchers have been able to detect significant di↵erences between patients in the presymptomatic phase of neurodegenerat...

The spatial deconcentration of population during the 20th century and the resulting expansion of human settlements has been a significant cause of anthropogenic landscape change in the United States and many other countries. In the seven-state North Central Region, as in other regions of the US, changing human settlement patterns are most prominent at the outlying fringe of metropolitan areas a...

1National Malaria Control Programme, Khartoum, Sudan (Correspondence to E.M. Malik: [email protected]). Singa Teaching Hospital, Singar, Sinnar State, Sudan. 3University of Juba, Juba, Sudan. ABSTRACT A cross-sectional study explored the clinical and laboratory aspects of malaria among children presenting with fever to 2 paediatric hospitals in Khartoum state during the low transmission s...

Interpreting changes between point estimates at different waves may be misleading, if we do not take the sampling variation into account. It is therefore necessary to estimate the standard error of these changes in order to judge whether or not the observed changes are statistically significant. This involves the estimation of temporal correlations between cross-sectional estimates, because cor...

We study the effects of homebuyers’ beliefs about future house price changes on their mortgage leverage choice. We show that, from a theoretical perspective, the relationship between homebuyers’ beliefs and their leverage choice is ambiguous, and depends on the magnitude of a “collateral adjustment friction” that reduces homebuyers’ willingness to adjust their house size in response to beliefs ...

This study estimates the demand for meat in Indonesian urban households encompassing beef, goat, broiler chicken, and native chicken. We estimate using cross-sectional data from 2013 Socio-Economic Household Survey data, which records food expenditure a week before survey. Because of some zero expenditure, Censored Almost Ideal Demand System (AIDS) consistent two-step estimation is applied. The...

AIM A study was designed to investigate whether measurements of the optic nerve diameter (OND) and cross sectional area (ONCSA), as measured by B-scan ultrasonography, are altered in glaucoma. The reproducibility and test-retest variability of echographic estimates of retrobulbar optic nerve dimensions was also tested. METHODS One eye of 49 glaucoma patients and 90 control subjects underwent ...

Background and aims: Loneliness typically includes anxious feelings. It is particularly relevant to adolescence period. It has effect on physical and mental health. The present study aimed to identify the predictive factors of loneliness among high schools female students. Methods: A cross– sectional survey was carried out among high schools female students in Ilam during the academic year 201...

background and purpose: the problematic reduction of civic engagement in local communities of khuzestan province in the southwest of iran has became a serious issue for research in social planning and policy making. efforts have been made to study the risk factors as the deterrents to engaging in the society. methods: this study aims to investigate the factors influencing civic engagement among...

This paper formulates and analyzes a relatively simple model of duopoly pricing under conditions of fluctuating demand. Price-setting firms produce a homogenous product subject to increasing marginal cost of production. We focus on static Nash equilibria in price choices and examine the impact of varying the level of demand on equilibrium price levels, markups of price over marginal cost, and p...