Results 61 to 70 of about 6,839 (233)

Designing wildlife crossing structures for ungulates in a desert landscape: A case study in China [PDF]

arXiv, 2019
This paper reports on the design of wildlife crossing structures (WCSs) along a new expressway in China, which exemplifies the country's increasing efforts on wildlife protection in infrastructure projects. The expert knowledge and field surveys were used to determine the target species in the study area and the quantity, locations, size, and type of ...
arxiv  

A degenerate Hopf bifurcation in retarded functional differential equations, and applications to endemic bubbles [PDF]

, 2015
In this paper, we study degenerate Hopf bifurcations in a class of parametrized retarded functional differential equations. Specifically, we are interested in the case where the eigenvalue crossing condition of the classical Hopf bifurcation theorem is violated.
arxiv   +1 more source

A national survey of iodine nutrition in children aged 3–6 years in China and its relationship with children's physical growth

Maternal &Child Nutrition, Volume 20, Issue 4, October 2024.
This study highlights the iodine nutritional status among Chinese children aged 3–6 years, revealing that while levels are generally adequate. Our findings stress the importance of tailored iodine supplementation to support optimal health and development in preschoolers.
Jing Li, Jun‐Xia Liu, Xiao‐Li Shen, Yu‐Qing Wang, Chong‐Huai Yan   +4 more
wiley   +1 more source

Existence, multiplicity and stability of endemic states for an age-structured S-I epidemic model [PDF]

arXiv, 2008
We study an S--I type epidemic model in an age-structured population, with mortality due to the disease. A threshold quantity is found that controls the stability of the disease-free equilibrium and guarantees the existence of an endemic equilibrium. We obtain conditions on the age-dependence of the susceptibility to infection that imply the uniqueness
arxiv  

Meigs syndrome presenting with recurrent unilateral pleural effusion

Respirology Case Reports, Volume 12, Issue 7, July 2024.
This case illustrates Meigs syndrome secondary to an ovarian fibroma, which resulted in recurrent pleural effusion. A thorough workup and pleural biopsy excluded other potential pathologies. Abstract Pelvic tumours are a rare cause of pleural effusion. We describe an approach to a case of Meigs syndrome with recurrent unilateral pleural effusion.
Boon Hau Ng, Sarah Hani Johari How, Nik Nuratiqah Nik Abeed, Hsueh Jing Low, Rose Azzlinda Osman, Andrea Ban Yu‐Lin   +5 more
wiley   +1 more source

Efecto de 8 años de Yodificación de la sal sobre la endemia bociogena en Panamá (1969 - 1971)

Revista Colombiana de Endocrinología, Diabetes y Metabolismo, 2018
Hasta ahora la yodificacion de la sal es el método  mas seguro  para  la profilaxis del  bocio endémico, y en grandes sectores de la población del mundo se han obte­nido  resultados  favorables. Este método se inició en Panama en 1968, y ahora  tratamos
Pablo E. Fletcher, José Trejos A., Josefina Adams, Marco Barreto   +3 more
doaj   +1 more source

Multi-Layer SIS Model with an Infrastructure Network [PDF]

arXiv, 2021
This paper deals with the spread of diseases over both a population network and an infrastructure network. We develop a layered networked spread model for a susceptible-infected-susceptible (SIS) pathogen-borne disease spreading over a human contact network and an infrastructure network, and refer to it as a layered networked susceptible-infected-water-
arxiv  

High (but Not Low) Urinary Iodine Excretion Is Predicted by Iodine Excretion Levels from Five Years Ago [PDF]

, 2011
Background: It has not been investigated whether there are associations between urinary iodine (UI) excretion measurements some years apart, nor whether such an association remains after adjustment for nutritional habits. The aim of the present study was
Als C, Als C, Andersen S, Andersen S, Anke Nautsch, Axel Kramer, Beitz R, Bourdoux P, Brauer VF, Brunn J, Busnardo B, Carsten Oliver Schmidt, De Braekeleer M, Gartner R, Girelli ME, Gutekunst R, Harald Below, Henri Wallaschofski, Henry Völzke, Hetzel BS, John U, Kesteloot H, Knudsen N, Koutras DA, Lorenz-Wawschinek O, Manz F, Rasmussen LB, Rasmussen LB, Remer T, Remer T, Roland Gärtner, Sackett-Lundeen L, Spitzweg C, Taussky HH, Thomas Remer, Thomson CD, Thomson CD, Till Ittermann, von Elm E, Vought RL, Wahl R, Winkler G, Zimmermann MB, Zou G   +43 more
core   +1 more source

The advancement of Ethiopia's salt iodization programme—The success story of the central iodized facilities

Maternal &Child Nutrition, Volume 20, Issue S5, July 2024.
The objective of this article is to characterize the value of centralized iodization facilities (CIFs) to advance Ethiopia's salt iodization programme and its impact on the population iodine status. The analysis is based on a review of publications relating to salt iodization and iodine deficiency control efforts in Ethiopia.
Rizwan Yusufali, Denise Frohmann, Tesfaye Chuko, Arnaud Laillou   +3 more
wiley   +1 more source

Prevalence Of Goitre In A Non Endemic Area Of Gujarat

Indian Journal of Community Medicine, 1993
A cross-sectional, prevalence-based study comprising a community (22.486) and school survey (19.589) in rural Mehsana, North Gujarat (population: 20,37,367) revealed the goiter prevalence as 3.5% and 7.3% respectively.
Kumar P
doaj