منابع مشابه
analyzing the vulnerability indices of urban dwellings to the natural disasters danger (case study: isfahan’s dwelling)
introduction nowadays, the vulnerability of human’s dwellings to the natural disasters has been steadily increasing as the results of the population centralisation. economic activities in vast and dense regions and disorganised and irregular conditions of dwellings in which the low-income dwellers of urban and rural areas live. the scale of damage caused by a crisis is not only related to its d...
متن کاملAsthma is a Serious Danger
میزان مرگ و میر آسم طی دهه گذشته بطور چشمگیری تغییر کرده است. با مبتلا کردن ۱۵ میلیون آمریکایی میزان مرگ و میر در سال ۱۹۷۸، به رقم ۱۸۷۲ نفر و ۹ سال بعد، به بیش از ۴۰۰۰ نفر رسید. علت چنین افزایش چشمگیری روشن نیست. علل احتمالی عبارتند از کاهش ظرفیت تنفس، استفاده بیش از حد از داروهای استثنائی و استنباط غلط بیماران و نیز مراکز درمانی نسبت به شدت بیماری است. بررسی دقیق، معالجات مناسب و آموزش به ب...
متن کاملImmunological tolerance: Danger – pathogen on the premises!
The March 22 issue of Science carried three articles [1–3] that claim to challenge a key principle of immunology, called self–non-self discrimination, by examining neonatal tolerance. These papers demonstrate that newborn mice can make immune responses if the antigen is appropriately presented. Is this a refutation of self–non-self discrimination as the authors believe? And does it prove the ‘d...
متن کاملSensing danger.
CRISPR-Cas loci encode for an adaptive immune system in prokaryotes that provides defense against viruses (1) and plasmids (2) that infect these organisms. CRISPR loci contain a series of repetitive sequences intercalated with short sequences derived from invading viruses and plasmids (3–5). These short sequences, called spacers, are acquired from the invader upon infection during an “immunizat...
متن کاملInfluence of public road proximity on ground-dwelling insect communities
Ecological studies on road’s impact on wildlife have concentrated on vertebrates although less is known of their effects on invertebrates. The current study presents public road influences on species richness, abundance, and diversity of ground dwelling insects in Arusha National Park in Tanzania. Values from pitfall traps data were generally higher in core habitat than road verge. Nine species...
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ژورنال
عنوان ژورنال: Environmental Toxicology and Chemistry
سال: 1990
ISSN: 0730-7268,1552-8618
DOI: 10.1002/etc.5620090401