نتایج جستجو برای: کانی ree

تعداد نتایج: 6812  

Journal: :Analytica chimica acta 2008
D Dick A Wegner P Gabrielli U Ruth C Barbante M Kriews

Inductively coupled plasma mass spectrometry (ICP-MS) is a suitable tool for multi-element analysis at low concentration levels. Rare earth element (REE) determinations in standard reference materials and small volumes of molten ice core samples from Antarctica have been performed with an ICP-time of flight-MS (ICP-TOF-MS) system. Recovery rates for REE in e.g. SPS-SW1 amounted to approximately...

2003
ANINDA MAZUMDAR KAZUYA TANAKA TAKAFUMI TAKAHASHI IWAO KAWABE

We have studied the REE distribution in shallow marine continental platform carbonates belonging to two late Neoproterozoic basins of India. Their REE abundance patterns normalized by chondrite display well defined W-type tetrad effect. Based on chondrite-normalized Gd/Ho, La/Nd ratios, the REE abundance patterns have been classified into three groups. (Y/Ho) and (Y/Dy) concentration ratios ref...

2011
Xiaoyue Du T. E. Graedel

The rare earth elements (REE) are a group of fifteen elements with unique properties that make them indispensable for a wide variety of emerging, critical technologies. Knowledge of the life cycles of REE remains sparse, despite the current heightened interest in their future availability. Mining is heavily concentrated in China, whose monopoly position and potential restriction of exports rend...

Journal: :Revista espanola de enfermedades digestivas : organo oficial de la Sociedad Espanola de Patologia Digestiva 2015
Javier Molina-Infante David A Katzka Evan S Dellon

Eosinophilic esophagitis (EoE) is an emerging chronic esophageal disease, first described in 1993, with a steadily increasing incidence and prevalence in western countries. Over the 80's and early 90's, dense esophageal eosinophilia was mostly associated gastroesophageal reflux disease (GERD). For the next 15 years, EoE and GERD were rigidly considered separate entities: Esophageal eosinophilia...

Journal: :Journal of applied physiology 2004
Marina M Reeves Peter S W Davies Judith Bauer Diana Battistutta

Achievement of steady state during indirect calorimetry measurements of resting energy expenditure (REE) is necessary to reduce error and ensure accuracy in the measurement. Steady state is often defined as 5 consecutive min (5-min SS) during which oxygen consumption and carbon dioxide production vary by +/-10%. These criteria, however, are stringent and often difficult to satisfy. This study a...

2014
Zdzisław M. Migaszewski Agnieszka Gałuszka Andrzej Migaszewski

The principal objective of the current study was to elucidate the potential influence of acid mine drainage (AMD) pond on neighboring farmer's wells in the Podwiśniówka area (south-central Poland), using North American Shale Composite (NASC)-normalized rare earth element (REE) concentration profiles. The well waters generally displayed a distinctly positive Eu anomaly similar to that of parent ...

2016
Hinke M. Kruizenga Geesje H. Hofsteenge Peter J.M. Weijs

BACKGROUND When indirect calorimetry is not available, predictive equations are used to estimate resing energy expenditure (REE). There is no consensus about which equation to use in hospitalized patients. The objective of this study is to examine the validity of REE predictive equations for underweight, normal weight, overweight, and obese inpatients and outpatients by comparison with indirect...

Journal: :Physiological research 2012
M Brúsik J Ukropec P Joppa B Ukropcová P Skyba M Baláž P Pobeha T Kurdiová I Klimeš I Tkáč D Gašperíková R Tkáčová

Increases in resting energy expenditure (REE) likely contribute to weight loss in various chronic diseases. In chronic obstructive pulmonary disease (COPD), relationships between the ventilatory impairment and increased REE, and between disturbances in adipokines and weight loss were previously described. Therefore, we investigated serum levels and adipose tissue expression of leptin and adipon...

Journal: :Clinical nutrition 2008
S Bertoli A Posata A Battezzati A Spadafranca G Testolin G Bedogni

BACKGROUND & AIMS To evaluate the agreement between resting energy expenditure (REE) estimated by a portable armband and measured by indirect calorimetry. METHODS One-hundred and twenty-seven women and 42 men with a mean (SD) age of 44 (12) years and a body mass index of 30.2 (5.4) kg/m(2) were studied. REE was estimated using the Sense Wear Pro 2 Armband (SWA), measured using the Sensor Medi...

Journal: :Games and Economic Behavior 2012
Yeneng Sun Lei Wu Nicholas C. Yannelis

The rational expectations equilibrium (REE), as introduced in Radner (1979) in a general equilibrium setting à la Arrow-Debreu-Mckenzie, often fails to have normative properties such as universal existence, incentive compatibility and efficiency. We resolve those problems by providing a new model which makes the standard REE a desirable solution concept. In particular, we consider an asymmetric...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید