نتایج جستجو برای: primary and secondary concentrations

تعداد نتایج: 16961641  

Journal: :معماری و شهرسازی 0
اسفندیار زبردست استاد دانشکده شهرسازی، پردیس هنرهای زیبا، دانشگاه تهران حسین ریاضی دانشجوی دکتری شهرسازی، دانشکده معماری و شهرسازی، دانشگاه هنر

the relationship between public health and urban planning is an innovative and important issue that it has prominent position in future urban planning. in this context, adverse air quality condition and air pollutant concentrations higher than the permitted limit set by the world health organization is considered as a threat to the health of citizens in big cities. according to result of air po...

2010
Robert Pasnau

The distinction between two kinds of qualities, primary and secondary, is one of the core doctrines of Scholastic natural philosophy. Far from being an invention of the modern era, it is something to which any student of Aristotelian philosophy—which is to say anyone who studied philosophy in a European university up until the eighteenth century—would have been introduced at a tender age. The d...

ناروئی‌نژاد, دکتر مینو , روحانی, دکتر زهره ,

Abstract Background & Aim: Infertility is a relatively common problem, the prevalence of which is reported to be one in six couples. Among female factors, ovarian and tubal factors which are treatable are the most important ones. Laparascopy is the golden test for evaluation of fallopian tubes but because of its expensiveness, the necessity of general anesthesia and other problems, hystero...

Journal: :iranian journal of catalysis 0
ghasem aghapour school of chemistry, damghan university, damghan, 36715-364, iran. ali kazemi moghaddam school of chemistry, damghan university, damghan, 36715-364, iran. samaneh nadali school of chemistry, damghan university, damghan, 36715-364, iran.

an efficient method is described for the mild and rapid tetrahydropyranylation of alcohols and phenols using a catalytic amount of n-chlorosaccharin (1 mol %) and 3, 4-dihydro-2h-pyran under solvent-free condition at room temperature. benzylic alcohols and phenols containing electron withdrawing or donating groups in various positions of phenyl ring, cinamyl alcohol, primary, secondary, tertiar...

‎In this work‎, ‎we introduce the concept of classical 2-absorbing secondary modules over a commutative ring as a generalization of secondary modules and investigate some basic properties of this class of modules‎. ‎Let $R$ be a commutative ring with‎ ‎identity‎. ‎We say that a non-zero submodule $N$ of an $R$-module $M$ is a‎ ‎emph{classical 2-absorbing secondary submodule} of $M$ ...

Madhu Jain Ragini Mittal Rekha Kumari

This paper deals with multi-component machine repair model having provision of warm standby units and repair facility consisting of two heterogeneous servers (primary and secondary) to provide repair to the failed units. The failure of operating and standby units may occur individually or due to some common cause. The primary server may fail partially following full failure whereas secondary se...

J ZOLGHADRI, S DEHBASHI, S MOTAZEDIAN, Z TAVANA,

Objective: To determine the efficacy of ovarian drilling in PCO patients who failed to achieve pregnancy with medical treatment. Methods and Main Results: 75 patients with a diagnosis of PCO of whom 48(64%) were primary infertile and 27(36%) were secondary infertile were clomiphene resistant. The other methods like bromocriptin, gonadotropins, GnRH -a and metformin had been given to these ...

2015
Cristina Mangia Marco Cervino Emilio Antonio Luca Gianicolo Paul B. Tchounwou

Epidemiological studies have reported adverse associations between long-term exposure to ambient particulate matter (PM2.5) and several health outcomes. One issue in this field is exposure assessment and, in particular, the role of secondary PM2.5, often neglected in environmental and health risk assessment. Thus, the aim of this work was to evaluate the long-term environmental and health impac...

Amyloidosis of urinary bladder is a rare condition and may be primary or secondary in nature. A case of primary localized vesical amyloidosis (VA) in a 40-yr-old man is described confused with neoplasm by cystoscopic, urographic. Surgical specimens obtained by transurethral resection (TUR) were diagnostic and histologically revealed amyloid deposits in sub-epithelial stroma with chronic inflamm...

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