نتایج جستجو برای: elemental composition

تعداد نتایج: 276086  

2012
Rana W. El-Sabaawi Tyler J. Kohler Eugenia Zandoná Joseph Travis Michael C. Marshall Steven A. Thomas David N. Reznick Matthew Walsh James F. Gilliam Catherine Pringle Alexander S. Flecker

The elemental composition of animals, or their organismal stoichiometry, is thought to constrain their contribution to nutrient recycling, their interactions with other animals, and their demographic rates. Factors that affect organismal stoichiometry are generally poorly understood, but likely reflect elemental investments in morphological features and life history traits, acting in concert wi...

Journal: :Journal of King Saud University - Engineering Sciences 2005

Journal: :Science 2004
Kenneth M Kemner Shelly D Kelly Barry Lai Joerg Maser Edward J O'loughlin Deirdre Sholto-Douglas Zhonghou Cai Mark A Schneegurt Charles F Kulpa Kenneth H Nealson

High-energy x-ray fluorescence measurements were used to make elemental maps and qualitative chemical analyses of individual Pseudomonas fluorescens strain NCIMB 11764 cells. Marked differences between planktonic and adhered cells were seen in the morphology, elemental composition, and sensitivity to Cr(VI) of hydrated cells at spatial scales of 150 nm. This technology can be applied to natural...

Journal: : 2023

A study was carried out in the Ukrainian Laboratory of Quality and Safety Agricultural Products at National University Life Environmental Sciences Ukraine. Soil samples were collected from farms five regions Ukraine, namely Kyiv (Brovary district), Kherson, Lviv (Pustomyty Rivne (Mlyniv Chernihiv region (Sosnytskyi district) during spring summer to determine elemental composition heavy metal co...

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