نتایج جستجو برای: 282 ppb

تعداد نتایج: 9870  

Journal: :Poultry science 2010
G A Ankra-Badu G M Pesti S E Aggrey

A random-mating population was used to study the genetic interrelationship between phytate P (PPB), Ca (CaB), N (NB), and energy bioavailability (EB), BW at 4 wk of age, relative growth (RG), and feed conversion ratio (FCR). Heritability estimates for PPB, CaB, NB, and EB were 0.09, 0.13, 0.16, and 0.10, respectively, and those of BW, RG, and FCR were 0.66, 0.15, and 0.10, respectively. Genetic...

2005
Gunilla Lindström Ingrid Ericson Bert van Bavel Jessika Hagberg Karin Hardell

Individual levels of 33 PCBs (#28, #52, #47/48, #74, #66, #101, #99/113, #110, #118, #114/122, #105, #153, #138, #128/167, #156, #157, # 178, #182/187, #183, #174, #177, #172/192, #180/193, #170/190, #189, #202, # 194, #199, #196/203, #195, # 208, #207, #206), HCB, oxychlordane, p,p’-DDE and PBDE #47 were determined in 141 plasma samples (0.5-3 ml) from Swedish females with documented high cons...

Journal: : 2022

A Spectrophotometric investigation was applied on the complexation of 1,3-bis (3-(2-pyridyl) pyrazol-1-ylmethyl) benzene (1,3-PPB) and 1,4-bis (1,4-PPB) with Zn(II) Cd(II) ions in a mixed (1:1) solvent water ethanol. The mole ratio methodology used to calculate stoichiometry, molar absorptivity, stability constant values. Some experimental conditions have been investigated, including pH, ionic ...

Journal: :Pediatric Critical Care Medicine 2018

2014
Jamison Scholer Vera Krischik

In an 11-week greenhouse study, caged queenright colonies of Bombus impatiens Cresson, were fed treatments of 0 (0 ppb actual residue I, imidacloprid; C, clothianidin), 10 (14 I, 9 C), 20 (16 I, 17C), 50 (71 I, 39 C) and 100 (127 I, 76 C) ppb imidacloprid or clothianidin in sugar syrup (50%). These treatments overlapped the residue levels found in pollen and nectar of many crops and landscape p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه شیمی و مهندسی شیمی ایران - پژوهشکده شیمی تجزیه و معدنی 1392

اسپکترومتری فتوترمال به گروهی از روش¬ها اطلاق می¬شود که اساس آنها بر اندازه¬گیری تغییرات ایجاد شده در خواص ترمودینامیکی نمونه قرار دارد. در این پروژه از یک اسپکتروفتومتر فتوترمال لنز تک پرتویی با لیزر nm 532 برای اندازه¬گیری غلظت نانوذرت طلا که از بهترین تبدیل کننده¬های انرژی نوری به گرما شناخته شده¬اند، استفاده شد که با تنظیمات بخش¬های مختلف دستگاه، منحنی کالیبراسیون محلول¬های نانوذرات طلا در ...

2009
S. J. Hoff J. D. Harmon D. S. Bundy B. C. Zelle

Research was conducted from May 2004 through September 2005 to investigate the concentration of hydrogen sulfide (H2S) at the perimeter of nine swine operations across the state of Iowa and the ammonia (NH3) and H2S concentrations near and inside residences located in the community of swine operations and in one area of the state not associated with animal agriculture. The nine sources monitore...

2017
E Du Lin Wang Chang-ying Li Chang-wen Zhang Yan-chun Qu Ran-lu Liu Yong Xu Kuo Yang Zhi-hong Zhang

BACKGROUND Permanent prostate brachytherapy (PPB) is an effective treatment choice for low and intermediate risk prostate cancer (PCa). However, the impact of PPB on tumor immune status is still poorly understood. This study aimed to assess the immune status in PCa patients before and at different time points after PPB (1, 3, 6, and 12 months). METHODS Blood was collected from 32 patients wit...

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