INTRODUCTION Since 1947, Zika virus has been identified sporadically in humans in Africa and Asia; however, clinically consequential Zika virus disease had not been documented prior to the current outbreak in the Americas. Considering 6 decades have passed since the first identification of the virus, it is perhaps unexpected that Zika virus was recognised only recently as capable of causing dis...

BACKGROUND There was a dengue epidemic in several regions of China in 2013. No study has explored the dynamics of dengue transmission between different geographical locations with dengue outbreaks in China. The purpose of the study is to analyze the epidemiological characteristics and to explore the dynamic transmission of dengue in China, 2013. METHODOLOGY AND PRINCIPAL FINDINGS Records of d...

Dementia is a common and disabling disorder in the elderly. Because of the worldwide aging phenomenon, existing in both developed and developing countries, dementia has a growing public health relevance. This article reviews the prevalence and incidence data for dementia reported in the international literature in the last 10 years. Results from 36 prevalence and 15 incidence studies have been ...

BACKGROUND Children of centenarians have lower cardiovascular disease prevalence and live longer. We aimed to estimate associations between the full range of parental attained ages and health status in a middle-aged U.S. representative sample. METHODS Using Health and Retirement Study data, models estimated disease incidence and mortality hazards for respondents aged 51-61 years at baseline, ...

Subclinical hypothyroidism is mainly diagnosed by laboratory results as there are no presenting clinical signs and symptoms. There are only few studies done in prevalence and patterns of age distributions of subclinical hypothyroidism in India. Therefore the study was designed to estimate the prevalence and distribution of subclinical hypothyroidism in rural women. This study is a hospital base...

A methodology is developed that determines age-specific transition rates between cell cycle phases during balanced growth by utilizing age-structured population balance equations. Age-distributed models are the simplest way to account for varied behavior of individual cells. However, this simplicity is offset by difficulties in making observations of age distributions, so age-distributed models...

OBJECTIVE To analyze the prevalence of past and recent infections by West Nile virus (WNV) and the risk factors associated with WNV exposure in a representative population from southern Spain. METHODS Sample size was established for an estimated prevalence of past WNV infections of 5 +/- 2.5% in 504 subjects. A pre-stratification was performed according to age distribution and place of reside...

OBJECTIVE To provide a description of the methods and key findings of the 2007 Australian National Survey of Mental Health and Wellbeing. METHOD A national face-to-face household survey of 8841 (60% response rate) community residents aged between 16 and 85 years was carried out using the World Mental Health Survey Initiative version of the Composite International Diagnostic Interview. Diagnos...

*Correspondence: [email protected] 2School of Aerospace Engineering and Applied Mechanicas, Tongji University, Shanghai, China Full list of author information is available at the end of the article Abstract We apply a series expansion technique to estimate the water content distribution and front position in finite boundary conditions. We derive an approximate analytical solution of the Richard...

In this paper, we study the distribution e~t~k6 where O* is introduced and named as the Diamond operator iterated k-times (k = 0, 1,2,. . .) and is definded by -~ + N + " " " + 8tz J ~ + z~T+ " " " p+ 2 8~p+q J J ' where t=(h , t2 , . . . , t . ) is a variable and ~=(~1,~2 . . . . ,~.) is a constant and both are the points in the n-dimensional Euclidean space R", $ is the Dirac-delta distributi...