background the early repolarization pattern (erp) has been considered a normal variant in electrocardiography (ecg) for a long time. nevertheless, increasing evidence has demonstrated its association with adverse outcomes. objectives the present study aimed to evaluate the prevalence of erp in the iranian general population and demonstrate its clinical and ecg correlates. methods a cross sectio...

background: talon cusp is a rare dental anomaly characterized by a cusp‑like projection, often including the palatal surface of the affected tooth. the aim of the present study was to investigate the prevalence and characteristics of talon cusps in a group of turkish children. materials and methods: the study population consisted of 14,400 subjects who attended the clinics of the department of ...

OBJECTIVE To report the distribution and availability of the indicators describing the population of childbearing women in Europe and to assess the impact of the difference in the distribution of two of these indicators (age and multiple births) on some outcome indicators. METHODS The six PERISTAT indicators of population characteristics were computed using data from a survey of data provider...

THE demographic characteristics of that special type of population that is made up of individuals who died in a hospital and were autopsied are necessarily of great interest to the many investigators whose studies employ postmortem data. Examination of certain of the characteristics of a series of autopsied individuals may aid the pathologist in determining the extent to which he may, with a re...

The renin-angiotensin system was examined in 146 black patients with essential hypertension. Classification into three categories was made according to plasma renin activity as measured by the radioimmunoassay of Angiotensin I and the accompanying sodium excretion. Differences among patients in the three renin groups (low, normal, and high) were not observed with respect to the incidence of cer...

Population characterizes collective behaviors of human beings. In this paper we investigate cumulative population distribution of municipalities (cities, towns, and villages) of Japan to show that each of them can be represented by a characteristic distribution function. We also introduce a numerical model for population dynamics to explain the origin of the distributions. From our analysis it ...

Natural selection favors alleles that increase the number of offspring produced by their carriers. But in a world that is inherently uncertain within generations, selection also favors alleles that reduce the variance in the number of offspring produced. If previous studies have established this principle, they have largely ignored fundamental aspects of sexual reproduction and therefore how se...

A common population characteristic of interest in animal ecology studies pertains to the selection of resources. That is, given the resources available to animals, what do they ultimately choose to use? A variety of statistical approaches have been employed to examine this question and each has advantages and disadvantages with respect to the form of available data and the properties of estimat...

OBJECTIVES:Many North American immigrants come from China. Given the critical impact of tobacco use on health, it is important to understand rates and correlates of smoking in this population. This systematic review addressed the question: based on current research, what is the association between acculturation and smoking behaviours in Chinese immigrants to North America? METHODS: The search w...