نتایج جستجو برای: iranian forests

تعداد نتایج: 78978  

2006
Mats Eriksson Guillaume Perrin Xavier Descombes Josiane Zerubia

Timber volume is an important parameter in forestry and with the position of each individual tree together with its size this parameter can be estimated with higher accuracy than from estimations made at stand level. In this paper, three existing methods for individual tree crown extraction are compared for different types of forests. The types of forests range from planted forests to dense for...

2012
Jon Andoni Urtizberea

This text was already posted on the TREAT-NMD website. Neuromuscular disorders represent a growing area of interest in Iran, a vast country with a population of 77 million characterized by its great ethnic variety and high consanguinity rate. The second Iranian congress of neuromuscular disorders and electrodiagnosis was held during 4-8 July 2012 in Tehran and was supported by the Iranian Neuro...

Journal: :Remote Sensing 2016
Jian Bi Ranga B. Myneni Alexei I. Lyapustin Yujie Wang Taejin Park Chen Chi Kai Yan Yuri Knyazikhin

Amazon forests experienced two severe droughts at the beginning of the 21st century: one in 2005 and the other in 2010. How Amazon forests responded to these droughts is critical for the future of the Earth’s climate system. It is only possible to assess Amazon forests’ response to the droughts in large areal extent through satellite remote sensing. Here, we used the Multi-Angle Implementation ...

2014
Balaji Lakshminarayanan Daniel M. Roy Yee Whye Teh

Ensembles of randomized decision trees, usually referred to as random forests, are widely used for classification and regression tasks in machine learning and statistics. Random forests achieve competitive predictive performance and are computationally efficient to train and test, making them excellent candidates for real-world prediction tasks. The most popular random forest variants (such as ...

2015
Maryam Dadmanesh Mohammad Mehdi Ranjbar Seyed Moayed Alavian Khodayar Ghorban

BACKGROUND Hepatitis viruses are one of the most important concerns in the patients on hemodialysis who are at high risk for blood-borne infections. GB virus C (GBV-C)/hepatitis G virus (HGV) is positive-stranded RNA virus with global distribution, which codes structural and nonstructural proteins (such as NS3). OBJECTIVES Review on literature about Iranian HGV isolates showed that there was ...

2016
José Crossa Diego Jarquín Jorge Franco Paulino Pérez-Rodríguez Juan Burgueño Carolina Saint-Pierre Prashant Vikram Carolina Sansaloni Cesar Petroli Deniz Akdemir Clay Sneller Matthew Reynolds Maria Tattaris Thomas Payne Carlos Guzman Roberto J Peña Peter Wenzl Sukhwinder Singh

This study examines genomic prediction within 8416 Mexican landrace accessions and 2403 Iranian landrace accessions stored in gene banks. The Mexican and Iranian collections were evaluated in separate field trials, including an optimum environment for several traits, and in two separate environments (drought, D and heat, H) for the highly heritable traits, days to heading (DTH), and days to mat...

2008

People and forests are interdependent. People depend on forests for their livelihoods because the forest provides a wide range of goods and services. Locally and globally, trees ameliorate climate, protect soil, regulate water, and maintain biological diversity on which future benefits depend. Likewise, the existence and maintenance of forests depend on people, particularly those people who liv...

2017
Ariel E. Lugo Heather E. Erickson

Tropical and subtropical dry forest life zones support forests with lower stature and species richness than do tropical and subtropical life zones with greater water availability. The number of naturalized species that can thrive and mix with native species to form novel forests in dry forest conditions in Puerto Rico and the US Virgin Islands is lower than in other insular life zones. These no...

2016
Simon J Goring David J Mladenoff Charles V Cogbill Sydne Record Christopher J Paciorek Stephen T Jackson Michael C Dietze Andria Dawson Jaclyn Hatala Matthes Jason S McLachlan John W Williams

BACKGROUND EuroAmerican land-use and its legacies have transformed forest structure and composition across the United States (US). More accurate reconstructions of historical states are critical to understanding the processes governing past, current, and future forest dynamics. Here we present new gridded (8x8km) reconstructions of pre-settlement (1800s) forest composition and structure from th...

2009
M Abdigoudarzi K Esmaeilnia N Shariat

BACKGROUND Chemical control method using different acaricides as spray, dipping solution or pour-on is routinely used for controlling ticks. Biological control agents are favorable due to their safety for animals and environment. Entomopathogenic fungi such as Beauveria bassiana are well known for controlling ticks. In this study, two Iranian indigenous strains of B. bassiana (B. bassiana 5197 ...

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