نتایج جستجو برای: evi

تعداد نتایج: 1275  

Journal: :J. Global Optimization 2008
Monica-Gabriela Cojocaru

In this paper we present an evolutionary variational inequality model of vaccination strategies games in a population with a known vaccine coverage profile over a certain time interval. The population is considered to be heterogeneous, namely its individuals are divided into a finite number of distinct population groups, where each group has different perceptions of vaccine and disease risks. P...

Journal: :Europan journal of science and technology 2021

Kentsel donatılar, kentsel bölgeler hiyerarşisi bağlamında, bölgesindeki kullanıcı gereksinimini karşılayan, kullanım hakkı kamuda bulunan açık ve kapalı mekânlardır. Donatı gereksinimi, imar planı amaçları paralelinde hizmet verdiği alandaki nüfusun sosyo kültürel yapısı demografik verilerine göre belirlenir. sistemlerde yer alması gereken donatı niteliği büyüklüğü, yönetmeliklerde de belirtil...

Journal: :Remote Sensing 2017
Zhihua Liu Michael C. Wimberly Francis K. Dwomoh

The Upper Guinea Forest (UGF) region of West Africa is one of the most climatically marginal and human-impacted tropical forest regions in the world. Research on the patterns and drivers of vegetation change is critical for developing strategies to sustain ecosystem services in the region and to understand how climate and land use change will affect other tropical forests around the globe. We c...

Journal: :Frontiers in Ecology and Evolution 2023

Introduction The Guangdong-Hong Kong-Macao Greater Bay Area (GBA) is located in the south subtropical area along southeast coast of China, which one world-class urban agglomerations and an important part for economic development. In order to investigate change vegetation indexes its response climate factors such circumstance change, this study component protection establishment ecological envir...

ژورنال: :اطلاعات جغرافیایی (سپهر) 0
سحرناز شکوهی زادگان کارشناس ارشد مدیریت مناطق بیابانی دانشگاه تهران حسن خسروی استادیار دانشکده منابع طبیعی دانشگاه تهران حسین آذرنیوند استاد دانشکده منابع طبیعی دانشگاه تهران غلامرضا زهتابیان استاد دانشکده منابع طبیعی دانشگاه تهران بهزاد رایگانی استادیار دانشکده محیط زیست کرج

بیابان زاییپسازدوچالشتغییراقلیموکمبودآب شیرین،سومینچالشمهمجامعهجهانیدرقرنبیستویکم می باشد، کهبهعنوانیکیازبارزترینوجوهتخریبمحیط زیستوانهداممنابعطبیعیدرجهان مطرحگردیده است. این پدیدهباتأثیربرپوشش گیاهی،آبوخاک، عامل جدّی تهدید کننده پارک های ملی در مناطق خشک و نیمه خشک از جمله ایران است.اقداماتاجرایی دررابطهباکنترلبیابان زاییبایدمتکیبرشناختوضعیتفعلیبیابانی شدنوشدتآنباشد. در این پژوهش به منظور ارزیا...

2013
Kaicheng Huang Tao Zhou Xiang Zhao

Extreme climatic events triggered by global climate change are expected to increase significantly hence research into vegetation response is crucial to evaluate environmental risk. Yunnan province, locating in southwest China, experienced an extreme drought event (from autumn of 2009 to spring of 2010), with the lowest percentage rainfall anomaly and the longest non-rain days in the past 50 yea...

2014
Benewinde J.-B. Zoungrana Christopher Conrad Leonard K. Amekudzi Michael Thiel Kwame Nkrumah Tarendra Lakhankar

A comparative analysis of the sensitivity of NDVI and EVI to rainfall indicators has been carried out for different land use/covers in the Southwest of Burkina Faso. Three classified land use/covers maps for 1999, 2006 and 2011 were produced and change detection was applied to locate persistent areas. Thereafter monthly vegetation indices of plots of 750 × 750 m2 were extracted from 2001 to 201...

Journal: :Veterinary microbiology 2010
A P M Varela C L Holz S P Cibulski T F Teixeira D A Antunes A C Franco L R Roehe M T Oliveira F S Campos D Dezen A Cenci W D Brito P M Roehe

This study was carried out to determine whether the sensitivity of serum neutralization (SN) tests would be affected by the use of distinct subtypes of bovine herpesvirus 1 (BoHV-1) and 5 (BoHV-5) as test challenge viruses. Bovine sera collected from a randomized sample (n=287) were tested in a 24h incubation SN against three type 1 viruses (BoHV-1.1 strains "Los Angeles" (LA) and "EVI 123"; Bo...

Journal: :Blood 1996
S Brada J de Wolf D Hendriks M Esselink M Ruiters E Vellenga

In the present study, we analyzed the capacity of CD34+/CD36- sorted bone marrow cells of myelodysplasia patients (n = 4) to differentiate along the erythroid lineage in the presence of erythropoietin (Epo) and mast cell growth factor (MGF). Two subgroups could be identified. In 6 patients, a normal number of burst-forming units-erythroid (BFU-Es) were cultured from CD34+/CD36- sorted cells. Ce...

2008
Cynthia S.A. Wallace Kathryn A. Thomas

In the arid Mojave Desert, the phenological response of vegetation is largely dependent upon the timing and amount of rainfall, and maps of annual plant cover at any one point in time can vary widely. Our study developed relative annual plant growth models as proxies for annual plant cover using metrics that captured phenological variability in Moderate-Resolution Imaging Spectroradiometer (MOD...

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