Results 21 to 30 of about 10,841 (178)

Genesis of Tozlou Pb-Zn Occurrence (South of Zanjan): Evidence from Geology, Mineralization, and Geochemistry

open access: yesJournal of Economic Geology, 2023
Tozlou Pb-Zn mineralization, ~250-300m long, and ~50m thick, is hosted by limestone units of the Qom Formation. The main mineralization zone occurred as vein-veinlets and vug infill textures, where mineralization is observed as Pb-Zn-bearing barite veins
Hamed Daneshvar   +3 more
doaj   +1 more source

A Statistical-Probabilistic Pattern for Determination of Tunnel Advance Step by Quantitative Risk Analysis [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2017
One of the main challenges faced in design and construction phases of tunneling projects is the determination of maximum allowable advance step to maximize excavation rate and reduce project delivery time.
sasan ghorbani   +2 more
doaj   +1 more source

Prediction of dynamic response of fluid in elevated water tanks using artificial neural network model [PDF]

open access: yesمجله مدل سازی در مهندسی, 2017
The objective of this study is to investigate the adequacy of Artificial Neural Networks (ANN) as a method to determine the dynamic response of fluid in elevated water tanks.
hamid pourbagheri   +2 more
doaj   +1 more source

Monitoring Social Living Experience in Urban Space with Future Research Approach (Case Study: Zanjan City) [PDF]

open access: yesنشریه جغرافیا و برنامه‌ریزی, 2020
Introduction One of the most important issues is the theory of sustainable development and its recent approach (livable) which, like other modern approaches to the theory of sustainable development, while posing a problem in the city, leads us to have a ...
MOHAMAD TAGHI HEYDARI   +3 more
doaj   +1 more source

A Case of Chronic Thromboembolic Pulmonary Hypertension and Pregnancy, Managed With Pulmonary Endarterectomy: Clinical Challenges, Case Report, and Literature Review [PDF]

open access: yesClin Case Rep
ABSTRACT Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare, potentially curable form of pulmonary hypertension, with limited data in pregnancy. We describe a 37‐year‐old woman with progressive dyspnea, back pain, and cough, whose evaluation revealed severe right ventricular enlargement, high pulmonary pressures, and extensive V/Q ...
Ahangar H   +3 more
europepmc   +2 more sources

Phenotypic and Genotypic Study of Antibiotic Resistance <i>blaPER-1</i>, <i>blaVEB</i>, and <i>blaSHV-1</i> Genes in Clinical Isolates of <i>Pseudomonas aeruginosa</i>. [PDF]

open access: yesHealth Sci Rep
ABSTRACT Background and Aims Pseudomonas aeruginosa is a non‐fermentative, opportunistic Gram‐negative bacterium that causes 10%–15% of nosocomial and burn wound infections worldwide. This bacterium is resistant to various antibiotics through multiple mechanisms, including acquisition of resistance genes.
Matin MG   +4 more
europepmc   +2 more sources

Limited Efficacy of 3 mA Intensified tDCS of the Right Inferior Frontal Cortex for OCD Treatment: A Randomized, Double-Blind, Sham-Controlled Study. [PDF]

open access: yesCNS Neurosci Ther
This double‑blind RCT investigated efficacy of intensified 3 mA anodal tDCS targeting the right inferior frontal cortex for OCD treatment. Both active and sham arms improved over time, but no between‑group differences emerged on Y‑BOCS or cognition indicating limited efficacy of this intervention.
Fatehi-Chenar A   +9 more
europepmc   +2 more sources

The Mothers’ Lifestyle Status in Zanjan Province [PDF]

open access: yesJournal of Advances in Medical and Biomedical Research, 2019
Background & Objective: Lifestyle is an important factor in determining family and community health. Therefore, the current study aimed to determine the status of motherschr('39') lifestyle in Zanjan province, Iran. Materials & Methods: The study is part of a national cross-sectional project implemented by the National Institute for Medical Research ...
Reza Armani Kian, Ali   +4 more
openaire   +1 more source

Bioinformatics analysis and isolation of beta-phaseolin promoter from beans (Phaseolus vulgaris) [PDF]

open access: yesپژوهش‌های حبوبات ایران, 2017
Introduction Constitutive promoters such as CaMV 35S, which is usually widely used in the plant genetic engineering express downstream genes in the all stages of plant life and in all tissues and if a transgene expressed at incorrect tissue and time ...
edris choupani   +2 more
doaj   +1 more source

An Investigation of Zanjan's Filigree Designs and Their Comparison to the Motifs of Islamic Decorative Arts and the Fractal Geometric Model [PDF]

open access: yesنگره, 2019
One of the most popular arts in Zanjan is filigree which is a branch of the art of metalworking and is mainly made of high-grade silver metal. In filigree, silver bullions are made with a rolling machine in the shape of quadrilateral narrow wires with ...
Elnaz Azizi   +2 more
doaj   +1 more source

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