نتایج جستجو برای: β irresoluteness

تعداد نتایج: 177483  

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. ...

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...

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