نتایج جستجو برای: ratio of valley

تعداد نتایج: 21182691  

Journal: :Journal of Geoscience and Environment Protection 2021

In the valley of Surkhob River, manifestations modern geological processes, characterized by various forms manifestation, are widely developed. Studying these processes is utmost importance, primarily landslides, which directly related to loss stability rocks on slopes. Landslide in River valley, regardless their type, cause significant economic damage population and economy, as well negatively...

2008
Corina M. Kellner Margaret J. Schoeninger

The highland Wari Empire established a presence within the Nasca region of south coastal Peru during the Middle Horizon period. To clarify the nature of this interaction, we analyzed stable carbon and nitrogen isotope ratios of human bone collagen from individuals living in the Southern Nasca Region (SNR) before (1–750 AD) and during (750–1000 AD) imperial influence. The stable isotope data do ...

A. Eskandarlo, H. Gholam-hosseinian, K. Ghazi-khanlou Sani, M. Mohammadi,

Background: In conventional radiation therapy, regarding normal tissue tolerance, the treatment of bulk tumors is one of the remaining challenges. Grid Radiation Therapy (GRT) is a technique to deliver high doses, approximately 15 – 20 Gy per fraction, to several small volumes located in a large radiation field. This can be performed using a grid block. The current work has concentrate...

2008
J. Taylor Perron William E. Dietrich James W. Kirchner

[1] Many landscapes are composed of ridges and valleys that are uniformly spaced, even where valley locations are not controlled by bedrock structure. Models of long-term landscape evolution have reproduced this phenomenon, yet the process by which uniformly spaced valleys develop is not well understood, and there is no quantitative framework for predicting valley spacing. Here we use a numeric...

al. et G.B.G. Pananjay

Protected areas are major tourism assets for a nation, particularly for developing countries providing sustainable benefit to the local community while funding for the maintenance and rehabilitation of the protected areas themselves. Valley of flowers national park is naturally meant for the conservation and study of western Himalayan flora. It became National park in 1982 and after that livest...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

Journal: :The Lancet. Global health 2016
Maria Baudin Ammar M Jumaa Huda J E Jomma Mubarak S Karsany Göran Bucht Jonas Näslund Clas Ahlm Magnus Evander Nahla Mohamed

BACKGROUND Rift Valley fever virus is an emerging mosquito-borne virus that causes infections in animals and human beings in Africa and the Arabian Peninsula. Outbreaks of Rift Valley fever lead to mass abortions in livestock, but such abortions have not been identified in human beings. Our aim was to investigate the cause of miscarriages in febrile pregnant women in an area endemic for Rift Va...

2014
Catherine Martin Kalpana Poudel-Tandukar Krishna C. Poudel

BACKGROUND Previous research has reported high rates of anemia in people living with HIV/AIDS (PLWHA) in hospital or tertiary care settings. The objective of this community-based study was to measure the prevalence of anemia and describe the risk factors, with a specific emphasis on HIV symptom burden, in PLWHA in the Kathmandu Valley, Nepal. METHODS We conducted a cross-sectional survey of 3...

Journal: :iranian journal of radiation research 0
k. ghazi-khanlou sani department of radiology, hamadan university of medical sciences, hamadan, iran m. mohammadi department of medical physics, hamadan university of medical sciences, hamadan, iran a. eskandarlo department of radiology, hamadan university of medical sciences, hamadan, iran h. gholam-hosseinian department of radiotherapy, mash-had university of medical sciences, mash-had, iran

background: in conventional radiation therapy, regarding normal tissue tolerance, the treatment of bulk tumors is one of the remaining challenges. grid radiation therapy (grt) is a technique to deliver high doses, approximately 15 – 20 gy per fraction, to several small volumes located in a large radiation field. this can be performed using a grid block. the current work has concentrated on the ...

Journal: :Revista do Colegio Brasileiro de Cirurgioes 2016
Guilherme Ricardo Nunes Silva Luiz Carlos Maciel

OBJECTIVE to know the epidemiological profile of patients with urolithiasis in the Paraíba Valley region, identifying its prevalence and spatial distribution. METHOD we conducted a cross-sectional study, by residence location in the Paraíba Valley, on morbidity data due to urolithiasis obtained from the DATASUS, covering the period between 2010 and 2012. We aimed at identifying the general, m...

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