نتایج جستجو برای: quantity and diversity

تعداد نتایج: 16854509  

2006
Igor Brown Daniel Mummey Svetlana Sarkisova Carlton Allen David S. McKay

What is the diversity of cyanobacteria in iron-depositing hot springs? We are currently conducting preliminary studies on the diversity of iron-tolerant CB isolated from irondepositing hot springs in and around Yellowstone National Park (WY, USA). Molecular analysis has confirmed the prediction [1] that the diversity of iron-tolerant CB is ill-defined. Analysis of 16S rRNA sequences from 15 uni...

2017
Quanchao Zeng Yang Liu Shaoshan An

The forest ecosystem is the main component of terrestrial ecosystems. The global climate and the functions and processes of soil microbes in the ecosystem are all influenced by litter decomposition. The effects of litter decomposition on the abundance of soil microorganisms remain unknown. Here, we analyzed soil bacterial communities during the litter decomposition process in an incubation expe...

Journal: :novelty in biomedicine 0
nasrin mohammadi kimiazi institute, research center for developing advanced technologies of khaje nasir toosi, tehran, iran bahram kazemi cellular and molecular biology research center, shahid beheshti university of medical sciences, tehran, iran department of biotechnology, school of advanced technologies in medicine, shahid beheshti university of medical sciences tehran, iran gholamreza roozkhosh kimiazi institute, research center for developing advanced technologies of khaje nasir toosi, tehran, iran kamel masoomi kimiazi institute, research center for developing advanced technologies of khaje nasir toosi, tehran, iran mohammad taghi farghadani kimiazi institute, research center for developing advanced technologies of khaje nasir toosi, tehran, iran

background: extraction of blood genomicdnais one of the main approaches for clinical and molecular biology studies. although several methods have been developed for extraction of blood genomic dna, most of these methods consume long time and use expensive chemicals such as proteinase k and toxic organic solvent such as phenol and chloroform. the objective of this study was to developed easy and...

Journal: :journal of ornamental plants 2015
m.a. khalaj b. edrisi m. amiri

plant spacing and nitrogen are the most important factors for increasing tuberose quality and quantity. in this study, field experiment carried out as factorial randomized completely block design (rcbd) in 3 replications. different levels of nitrogen (0, 50, 100, 150, 200, 250 kg/ha) of ammonium nitrate was used. second factor was different plant spaces (10, 15, 20 and 25 cm). results showed th...

Journal: :The Journal of nursing education 1974
Deena Larsen

Transportation diversity (also called options, choice and multi-modalims) refers to the quantity and quality of transportation options available in a particular situation. It includes different modes, services and prices. Increased transport diversity can provide numerous benefits, including increased transport system efficiency, consumer savings, and support for equity objectives. Many of thes...

2004
Ian R. Swingland

biodiversity/biological diversity Species, genetic, and ecosystem diversity in an area, sometimes including associated abiotic components such as landscape features, drainage systems, and climate. diversity indices Measures that describe the different components of biodiversity, such as species richness (alpha diversity), beta and gamma diversity, endemicity, and higher taxon richness. ecosyste...

Features provide a comprehensive global overview of extent and diversity of grasslands. Analyzes how humans shaped grasslands through millennia of use and which role they play in present-day agriculture. Quantifies the role of grasslands as biodiversity hotspots as well as the drivers threatening these. Evaluates the ecosystem services grasslands provide e.g. in terms of soil protection and car...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید