نتایج جستجو برای: nutrient cycling

تعداد نتایج: 98548  

Journal: :Proceedings of the National Academy of Sciences 2000

Journal: :journal of dental materials and techniques 0
saied mostafa moazzami dental research center and department of operative and esthetic dentistry, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) berahman sabzevari department of orthodontics, rafsanjan dental school, rafsanjan university of medical sciences, rafsanjan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی رفسنجان (rafsanjan university of medical sciences)

introduction: current thermal cycling units fail to simulate the drinking behaviors, and oral balancing temperature. they cannot also simulate other oral conditions such as drink coloring, and chemicals like tea, coffee, carbonated and noncarbonated, citrus juices as well as alcoholic and nonalcoholic drinks and also saliva and milk itself. the main objective of this study is to introduce the d...

Masoomeh Aghababazadeh Mohammad Amin Kerachian,

  Humans suffer transient or persistent starvation due to a lack of food intake, either because of fasting, voluntary dieting, or due to the scarcity of available food. At the cellular level it is possible to possess pathological starvation during ischemia and solid tumors. Blood provides many nutrients to our cells, and researchers provide these nutrients to cells in culture in the form of en...

2008
John T. Gray

Research Associate, Department of Biological Sciences, University of California, Santa Barbara, California, 93109. Abstract: Productivity and nutrient cycling parameters were measured in mature stands of chaparral and coastal sage scrub in the Santa Monica Mountains, California, USA. Net annual production and the magnitude of annual nutrient transfers were much greater in the evergreen chaparra...

2013
Manuel Delgado-Baquerizo Fernando T. Maestre Jesús G.P. Rodríguez Antonio Gallardo

Dew is an important source of water in drylands, particularly for biological soil crusts (BSCs), which are soil communities dominated by lichens, mosses and cyanobacteria that are prevalent in these environments and play important roles in nutrient cycling. While BSCs can retain and use water from dew, the effects of dew events on the cycling of nitrogen (N) and carbon (C) in BSC-dominated ecos...

2017
Maria Mooshammer Florian Hofhansl Alexander H Frank Wolfgang Wanek Ieda Hämmerle Sonja Leitner Jörg Schnecker Birgit Wild Margarete Watzka Katharina M Keiblinger Sophie Zechmeister-Boltenstern Andreas Richter

Predicted changes in the intensity and frequency of climate extremes urge a better mechanistic understanding of the stress response of microbially mediated carbon (C) and nutrient cycling processes. We analyzed the resistance and resilience of microbial C, nitrogen (N), and phosphorus (P) cycling processes and microbial community composition in decomposing plant litter to transient, but severe,...

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