نتایج جستجو برای: 4 and pb 22
تعداد نتایج: 17052824 فیلتر نتایج به سال:
OBJECTIVE To perform a randomized trial to determine whether there is cardiovascular disease (CVD) risk reduction from a plant-based (PB), no-added-fat diet and the American Heart Association (AHA) diet in children. STUDY DESIGN A 4-week (April 20, 2013 to May 18, 2013), prospective randomized trial was undertaken in a large, Midwestern hospital system's predominantly middle class outpatient ...
The influence of the Lewis basicity of alkali polysulfide fluxes (A(2)S(x)) (A = alkali) as a function of x on the respective reactivities of Pb and Sn with Ge was studied and found to be strong. Cs(4)Pb(4)Ge(5)S(16), K(2)PbGe(2)S(6), and K(4)Sn(3)Ge(3)S(14) could be prepared only under low basicity with S/A(2)S ratios of > or =11. These compounds display complex frameworks and are semiconducto...
ترکیبات متعددی از سرب(ii) با لیگاندهای مختلفی شامل بای پیریدین ها، پیریدین کربوکسیلیک اسیدها و لیگاندهای دیگر سنتز و با روش های طیف سنجی ir، xrd، x-ray ،uv حالت جامد، فلورسانس حالت جامد و sem شناسایی شدند. برخی نانو ذرات ترکیبات سرب(ii) نیز سنتز و شناسایی شدند. ساختار همه ترکیبات که عبارتند از: [pb(?-4,4?-bipy)(?-br)2]n (1)، [pb(?-bpa)(?-br)2]n (2)، [pb(?-bpe)(?-br)2]n (3)،[pb(?3-2-pyc)(?-ncs)...
the present study is an attempt to investigate the potential impact of inspirational quotes on improving english abstract vocabulary recall. to achieve this goal, a multiple choice language proficiency test of 60 items including vocabulary and grammar component was administered to a sample of 63 second-semester male and female students whose age ranged between 17 to 22 and they were studying en...
Antibody based methods have numerous advantages compared to other detection methods. However, heavy metals cannot stimulate the immune antibody response; it is the main obstacle for preparation of the antibodies that used in detection methods of the metals. The production of the immunogenic Pb complexes by using cost benefit linkers of EDTA and DTPA were investigated in this study.BS...
بخش اول: از واکنش تراکمی پیش لیگاند جدید 4-((3-فرمیل-4-هیدروکسی فنیل ) دی آزنیل ) بنزوئیک اسید با2و6- دی آمینو پیریدین لیگاند باز شیف جدید 4و?4-()-(1?e,1e3و?3(-(1?e,1e(پیریدین -2و6- دی ایل بیس (آزان-1-ایل-1-ایل دن))بیس (متان-1-ایل-1-ایل دن)بیس (4-هیدروکسی -1و3- فنیلن) بیس (دی آزن -1و2-دی ایل) دی بنزوئیک اسید تهیه گردید. در ادامه برای تهیه کمپلکس های فلزی این لیگاند، ابتدا گزینش پذیری آن نسبت ب...
UNLABELLED There are few data in the literature related to polysomnography in infants in altitudes from 2,200 m to 2,800 m. The main objective of this investigation was to describe oxygen saturation (SpO2) levels during sleep in infants aged between 1 and 4 months living at an altitude of 2,560 m. The secondary objectives were the description of periodic breathing (PB) and apnea indexes. Polyso...
Jet quenching as observed via high pT hadron production is studied in the HIJING1.35 model. We test the model on recent WA98 data on 160 AGeV Pb+ Pb → π up to 4 GeV/c. The results depend sensitively on the model of the Cronin effect. At (RHIC) collider energies ( √ s > 200 AGeV), on the other hand, semi-hard hadron production becomes insensitive to the above model and is thus expected to be a c...
The asymmetric unit of the title Pb-based coordination polymer, [Pb2(C24H16N2O8)(H2O)2] n , consists of one Pb(II) cation, half of a 4,4'-(1,4-phenyl-ene)bis-(2,6-dimethyl-pyridine-3,5-di-carb-oxyl-ate (L (4-)) ligand and one coordinating water mol-ecule. The centers of the benzene ring of the ligand and the four-membered Pb/O/Pb/O ring are located on centers of inversion. The Pb(II) ion is coo...
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