BACKGROUND Acute mountain sickness (AMS) occurs in non-acclimatized people after an acute ascent to an altitude of 2,500 m or higher. The aim of this study was to examine the incidence and severity of AMS and associated symptoms in children. METHODS The prospective observational study included 197 healthy, non-acclimatized 11 and 12-year-old children trekking the round-trip from the trailhead...

Field studies of acute mountain sickness (AMS) usually include variations in exercise, diet, and environmental conditions over days and development of clinically apparent edemas. The purpose of this study was to clarify fluid status in persons developing AMS vs. those remaining without symptoms during simulated altitude with controlled fluid intake, diet, temperature, and without exercise. Nine...

Abstract. Many East German cities face long-term shrinking processes, which contribute to declining city centers. This is particularly noticeable in small and medium-sized with low human financial resources. A funding program that helps regenerate inner the regional competition „Ab die Mitte! Die City-Offensive Sachsen“ (AMS) Saxony, organized as a public-private partnership. study aims (1) res...

هدف: این پژوهش با هدف تحلیل روان­سنجی نسخة کوتاه مقیاس پرطاقتی روانی برای نوجوانان (مک‌گیوئن، کلیر ـ تامپسون و پوتوین، 2016) در بین گروهی از تیزهوش ایرانی انجام شد. روش: همبستگی، 300 نوجوان (150 پسر 150 دختر) به پرسشنامة نظم‌بخشی شناختی هیجان (گارنفسکی، کرایج اسپینهاون، 2001) پاسخ دادند. به‌منظور تعیین روایی عاملی روش­ آماری عامل تأییدی بررسی همسانی درونی ضرایب آلفای کرونباخ استفاده همچنین، مطا...

هدف انتخاب تأمین‌کنندگان و تخصیص سفارش بر اساس ابعاد پایداری ریسک پایداری، در شرایط عدم‌­قطعیت برخی پارامترها است؛ همچنین با محدودیت استراتژی کاهش برای مدیریت همراه است. معیارهای ریسک، امتیاز توسط روش‌های تاپسیس فازی تجزیه‌وتحلیل آثار شکست محاسبه شده است سپس برنامه تصادفی چندمرحله‌ای ایجاد معیار ارزش معرض شرطی، پیرامون تأمین منابع یک فضای چند­دوره‌ای برنامه‌‎ریزی دستیابی به برنامه‌ریزی انعطاف‌پ...

Background. This study was designed to evaluate the incidence of acute mountain sickness (AMS) occurring on different climbing routes on Mount Damavand and the effect of beginning time of ascent in Iranian trekkers. Methods. This study was a descriptive cohort investigation, performed in summer 2007. All trekkers who ascended Mount Damavand from northern, western, eastern, and southern paths an...

The pathophysiology of acute mountain sickness (AMS) is unknown. One hypothesis is that hypoxia induces biochemical changes that disrupt the blood-brain barrier (BBB) and, subsequently, lead to the development of cerebral edema and the defining symptoms of AMS. This study explores the relationship between AMS and biomarkers thought to protect against or contribute to BBB disruption. Twenty heal...

To evaluate the biological effect of ceramic fibres on the clearance function of alveolar macrophages (AMs) morphological changes and phagocytic activity of AMs were assessed. Rats were exposed to respirable ceramic fibres with a mass median aerodynamic diameter of 4.4 microns and a concentration of 20.1 mg/m3 in an exposure chamber. They were killed after one week (group A) and two weeks (grou...

Despite their close physical and functional relationships, alveolar macrophages (AMs) and pulmonary dendritic cells (pulDCs) have rarely been examined together in the context of infection. Using a nonlethal, resolving model of pneumonia caused by intranasal injection of Streptococcus pneumoniae, we demonstrate that AMs and pulDCs exhibit distinct characteristics during pulmonary inflammation. R...

Accelerator mass spectrometry (AMS) is an ultrasensitive analytical technique for measuring rare nuclides such as 14C, 26Al and 41Ca. The low detection limit and wide dynamic range of AMS allow long-term and highly sensitive tracer studies in nutrition that cannot be performed with other methods. The present paper is intended to provide a description of AMS to the interested nutritionist and pr...