نتایج جستجو برای: selected

تعداد نتایج: 376285  

Journal: :Phytotherapy research : PTR 1999
E M Williamson

Journal: :Journal of travel medicine 2000
M Isaäcson

Myths about humor in the workplace.(2002).Library Mosaics, 13(2), 19. Brown, C. G. (2012). A systematic review of the relationship between self-efficacy and burnout in teachers. Educational & Child Psychology, 29(4), 47-63. Campbell, K. (2008). The wonder woman syndrome: Burnout in libraries. Tennessee Libraries, 58(2), 1-4. Caputo, J. S. (1991). Stress and burnout in library service. Phoenix, ...

Journal: :The Analyst 1999
M H Choi B C Chung

An efficient method for the simultaneous determination of eight steroids, androstenedione, dihydrotestosterone (DHT), dehydroepiandrosterone (DHEA), testosterone, androsterone, etiocholanolone, progesterone and pregnenolone, in human hair by gas chromatography-mass spectrometry (GC-MS) using d3-testosterone as internal standard is described. The method involves alkaline digestion, liquid-liquid...

Journal: :Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie 1985
L Siekmann

A method for the measurement of uric acid in human serum by isotope dilution-mass spectrometry is described. The analytical procedure consists of the following steps: Addition of [1,3-15N2]uric acid to the serum sample; ion exchange chromatography on AG1-X2; formation of the trimethylsilyl derivative; gas liquid chromatography-mass spectrometry (GC-MS), selected ion monitoring (SIM) at m/z-valu...

2000
Matthew H. Slawson Kimberly J. Shaw

A rapid, simple, and sensitive electrospray LC/MS method has been developed for the quantitative analysis of cocaine and benzoylecgonine in urine using electrospray with the Agilent 1100 LC/MSD system. Urine samples were extracted using solid phase extraction cartridges, and the drug and metabolite were analyzed without derivatization using an isocratic separation and selected ion monitoring (S...

Journal: :Environmental health and preventive medicine 2006
Yoshimasa Konishi Mikiya Kitagawa Kazuhiko Akutsu Yukio Tanaka

OBJECTIVE Because the analysis of polychlorinated biphenyls (PCBs) in 1970's was performed using a packed column gas chromatograph, with an electron capture detector to determine total-PCB concentration, analytical data obtained by this analysis do not meet the requirement for the risk assessment of PCB congeners. In this context, the present study was carried out to reevaluate the congeneric a...

2000
Gerry Stahl Sankar K. Pal Daniel Yeung

This paper discusses the role of interpretation in innovative design and proposes an approach to providing computer support for interpretation in design. According to situated cognition theory, most of a designer’s knowledge is normally tacit. Situated interpretation is the process of explicating something that is tacitly understood, within its larger context. The centrality of interpretation t...

2010

8 Reiffers J, Goldman J, Meloni G, Cahn JY, Gratwohl A. Autologous stem cell transplantation in chronic myelogenous leukaemia: A retrospective analysis of the European Group of Bone Marrow Transplantation. Bone Marrow Transplanl1994; 14:407-10. 9 Coulombel L, Kalousek DK, Eaves CJ, Gupta CM, Eaves AC. Long term marrow culture reveals chromosomally normal haematopoietic progenitor cells in patie...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1376

saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

Journal: :Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan 2008
Hiroyuki Tada Hiroyuki Nagai Koichi Shiraki Yoshihiro Deyashiki

A simplified method for the determination of benzylaminopurine in agricultural products by LC/MS was investigated. Benzylaminopurine in agricultural products was extracted with acetone and the extract was concentrated to below 30 mL. Buffer solution of pH 9.0 and ethyl acetate were added to the residue, and the solution was shaken. The ethyl acetate layer was evaporated to dryness, and the resi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید