نتایج جستجو برای: β

تعداد نتایج: 177470  

Journal: :applied food biotechnology 0
ali bozorg department of chemical and petroleum engineering, sharif university of technology, tehran, iran. manouchehr vossoughi department of chemical and petroleum engineering, sharif university of technology, tehran, iran. akhtarolmoluk kazemi department of chemical and petroleum engineering, sharif university of technology, tehran, iran. iran alemzadeh department of chemical and petroleum engineering, sharif university of technology, tehran, iran.

in order to reduce the costs associated with poly-β-hydroxybutyrate production, growth and poly-β-hydroxybutyrate production of ralstonia eutropha were studied in batch culture on different carbon sources. experiments were designed and conducted to not only lower the cost of poly-β-hydroxybutyrate production by using inexpensive substrates, but also to increase poly-β-hydroxybutyrate production...

Journal: :Annals of Probability 2022

We continue the study, initiated in (J. Eur. Math. Soc. (JEMS) 20 (2018) 199–257), of localization transition a lattice free field ϕ=(ϕ(x))x∈Zd, d≥3, presence quenched disordered substrate. The substrate affects interface at spatial sites which height is close to zero. This corresponds Hamiltonian ∑x∈Zd(βωx+h)δx, where δx= 1[−1,1](ϕ(x)), and (ωx)x∈Zd an i.i.d. centered field. A takes place when...

Journal: :jundishapur journal of microbiology 0
fatemeh salimi department of microbiology, faculty of biological sciences, shahid beheshti university of medical sciences, tehran, ir iran fereshteh eftekhar department of microbiology, faculty of biological sciences, shahid beheshti university of medical sciences, tehran, ir iran; department of microbiology, faculty of biological sciences, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2129903208, fax: +98-2122431664

conclusions this study showed that multiple β-lactamases can be produced in burn isolates. this suggests that use of cephalosporins and carbapenems should be restricted in burn isolates to minimize the development and spread of these multidrug resistant pathogens. results there was 99% resistance to carbenicillin, and ticarcillin, 98% to cotrimoxazole, 96% to ciprofloxacin, and aztreonam, 95% t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1388

پیرازول ها ترکیبات هتروسیکل آروماتیک هستند که در محصولات طبیعی و ترکیبات فعال دارویی به وفور یافت می شوند و روش های سنتزی مختلفی برای دست یابی به این ترکیبات وجود دارد. یکی از روش های سنتز مستقیم پیرازول ها، شامل تراکم β-دی کتون ها و هیدرازین ها در حضور کاتالیزور های مختلف مانند سولفوریک اسید، کاتالیست ناهمگن زیرکونیوم سولفونیل فسفونات، پارا تولوئن سولفونیک اسید، اسکاندیم تری فلات و غیره است. ...

Journal: :Practice in Clinical Psychology 2022

Objective: Given the importance of COVID-19 consequences and students’ health, this study aimed to predict fear based on spiritual well-being self-efficacy among Iranian university students by focusing mediating role mindfulness. Methods: This was a descriptive correlational study. An online sampling method used, sample included 396 in Tehran City, Iran. Mindful Attention Awareness Scale (MAAS)...

Journal: :Frontiers in Physics 2021

Fundamental properties of neutrinos are investigated by studying double beta decays ( ββ -decays), while atro-neutrino nucleo-syntheses and astro-neutrino productions inverse (inverse β -decays) induced astro-neutrinos. Neutrino nuclear responses for these id="mi...

Journal: :journal of medical bacteriology 0
maryam dehghani department of microbiology, karaj branch, islamic azad university, karaj, iran. az haddadi department of microbiology, karaj branch, islamic azad university, karaj, iran. mahmoud shavandi microbiology and biotechnology research group, research institute of petroleum industry, tehran, iran.

background :   ampc β-lactamases are important cephalosporinases chromosomally encoded in many of enterobacteriaceae and a few other organisms where they mediate resistance to cephalothin, cefazolin, cefoxitin and penicillins. the six different families of plasmid-mediated ampc β-lactamases have been described, but no phenotypic test can discriminate among them. ampc multiplex pcr has been succ...

Journal: :medical laboratory journal 0
keiwan ebrahimi mohammadi department of food science, faculty of agriculture, mahabad branch, islamic azad university, mahabad, iran faraz arashrad department of food science, faculty of agriculture, mahabad branch, islamic azad university, mahabad, iran

abstract         background and objective: microalgae are a group of algae that produce biochemical products consisting of a wide range of carbohydrates, lipids and proteins that are commercially valuable. interest in microalgal cultivation is currently blossoming globally. species of dunaliella are found in freshwater, euryhaline habitats of all continents, oceans including the dead sea and ev...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

the purpose of this study was to produce oil in water nano-emulsion by ultrasonication, and investigate the influence of inulin and β-cyclodextrin on the prosperities of nano-emulsion and morphology of spray dried microcapsules. the results showed that emulsion droplet size in samples containing β-cyclodextrin (8.28±0.11 nm) was less than inulin samples (97.12±4.2 nm). considering sem photos, β...

Journal: :international journal of hematology-oncology and stem cell research 0
mohammad ahmadvand department of hematology, faculty of medical sciences, tarbiat modares university, tehran, iran. mehrdad noruzinia department of medical genetics, school of medicine, tarbiat modares university, tehran, iran. ali dehghani fard sarem cell research center- scrc, sarem women's hospital, tehran, iran. mostafa montazer zohour genetics of noncommunicable disease research center, zahedan university of medical science, zahedan, iran. mohammad amin tabatabaiefar department of medical genetics, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, iran. masoud soleimani department of hematology, faculty of medical sciences, tarbiat modares university, tehran, iran.

background: β-thalassemia considers worldwide public health disorders. novel fetal hemoglobin inducer agents such as thalidomide and sodium butyrate have been attended for ameliorating clinical complications of such disorders. material and methods: we used thalidomide and sodium butyrate for increasing the level of fetal hemoglobin in erythroid progenitors. briefly, after isolation of cd133+ st...

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