نتایج جستجو برای: فاز β

تعداد نتایج: 193191  

Journal: :modares journal of medical sciences: pathobiology 2013
zahra nasrollahi shahla roudbar mohammadi fatemeh atyabi hassan zuhair sarraf mohammad hossein yadegari

objective: in recent decades, β-glucans have been used as important complementary and alternative medicines for numerous immunocompromised individuals and those with end stage of cancer terminal. the most active form of β-glucans is β(1,3)d-glucan and its  most common source is cell wall of candida albicans. recently it has been introduced as a nano particle design to be used as a carrier for d...

Background: Since human resources is the most important asset of each organization, and its effective management is the key to the success of organization, this study aimed to investigate the occupational and organizational consequences of perception of perceived organizational justice and support among faculty members of Islamic Azad University in West Azerbaijan Province, Iran. Materials and...

Journal: :European Journal of Organic Chemistry 2022

An innovative one-step synthesis towards β-aryl-β,β-difluorocarbamates and β-aryl-β,β-difluoroazides is presented. The described approach relies on the use of α-fluorostyrene substrates in a radical addition/fluorination reaction with N-centered radicals presence Selectfluor®. best results were obtained for azidofluorination reaction. resultant further transformed into Nitrogen-based heterocycl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم پایه 1393

در این پایان نامه، مترهای فینسلری از انحنای s ثابت را مطالعه می کنیم. ابتدا مترهای راندرزی با انحنای s غیرصفر(ثابت) که انحنای h صفر دارند را بررسی خواهیم کرد، که مثال نقصی برای قضیه ای در[24] می باشند. سپس با استفاده ساخته های لی و شن، نشان می دهیم (α ، β)-مترهایی با انحنای s ثابت دلخواه در هر بعد وجود داشته و غیرراندرزی می باشند.

Journal: :Vietnam Journal of Science and Technology 2022

Four neolignans, (7S,8S)-dihydrodehydrodiconiferyl alcohol 9-O-β-D-glucopyranoside (1), 9′-O-β-D-glucopyranoside (2), (7S,8R)-5-methoxydihydrodehydrodiconiferyl 4-O-β-D-glucopyranoside (3), and (4) five flavonol glycosides, kaempferol-3-O-β-D-glucopyranoside (5), kaempferol 3-O-rutinoside (6), 3-O-α-L-rhamnopyranosyl (1→6)-β-D-galactopyranoside (7), 3-O-β-D-galactopyranoside (8), quercetin 3-O-...

Journal: :iranian journal of blood and cancer 0
keikhaei b shariati g abolghasemi h

background: beta thalassemia gene mutations are among common mutations in southwest iran. however, hemoglobin e (hb e) and hb e/β⁰ thalassemia account for a small number of hemoglobinopathies in iran. this is the first study to directly address the existence of hb e and consequently hb e/β⁰ thalassemia in southwest iran. methods: this retrospective study discovered seven cases of hb e/β⁰ thalas...

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. ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید