اتحاد عاقل و معقول از مسائل محوری در حکمت متعالیه به شمار می‌آید. گرانی‌گاه اثبات استنتاج آن، مرهون توجه ژرف روش مبانی خاص است. ادلة اثباتی آن دست کمی خود فاصله گرفتن فلسفة متعارف ندارد. این مسیر، برخی نوپژوهان با ذهنیت اشتراک روشی مبنایی آموزة اتحاد، دیدگاه صدرایی دیگر حکما، خوانش آموزه پرداخته‌ بهانه نقد، نتیجه‌ای جز تولید شبهه بار نیاورده‌اند. حکیم سبزواری بر اساس ویژة دلیلی مبنای مشاهدة عقو...

We measure the ratio of branching fractions for $\Upsilon (4S)$ decays to $B^+B^-$ and $B^0\bar{B}{}^0$ using $B^+ \rightarrow J/\psi(\ell\ell) K^+$ $B^0 K^0$ samples, where $J/\psi(\ell\ell)$ stands $J/\psi \to \ell^+\ell^-$ ($\ell = e$ or $\mu$), with $711$ fb$^{-1}$ data collected at $\Upsilon(4S)$ resonance Belle detector. find decay rate $\Upsilon(4S) B^+B^-$ over B^0\bar{B}{}^0$ be $1.065...

The properties of the [4Fe-4S] cluster in glutamine phosphoribosylpyrophosphate amidotransferase from Bacillus subtilis have been investigated using low temperature magnetic circular dichroism, electron paramagnetic resonance (EPR), and resonance Raman spectroscopies. The Raman spectra of the native enzyme in the Fe-S stretching region show a [4Fe-4S]2+ cluster that is structurally very similar...

s IO1-1–IO1-6 Oral Session 2: Diagnostic Modalities and Others 95 Abstracts IO2-1–IO2-4s IO2-1–IO2-4 Oral Session 3: Colorectal and Anal Disorders 97 Abstracts IO3-1–IO3-4s IO3-1–IO3-4 Oral Session 4: Inflammatory Bowel Disease 99 Abstracts IO4-1–IO4-4s IO4-1–IO4-4 Poster Session Gastrointestinal Infections in Asia 100

Electron paramagnetic resonance (EPR) studies of succinate:ubiquinone oxidoreductase (SQR) from Paracoccus denitrificans have been undertaken in the purified and membrane-bound states. Spectroscopic "signatures" accounting for the three iron-sulfur clusters (2Fe-2S, 3Fe-4S, and 4Fe-4S), cytochrome b, flavin, and protein-bound ubisemiquinone radicals have been obtained in air-oxidized, succinate...

Investigations were performed with regard to the function of the iron-sulfur cluster of L-serine dehydratase from Peptostreptococcus asaccharolyticus, an enzyme which is novel in the class of deaminating hydro-lyases in that it lacks pyridoxal-5'-phosphate. Anaerobically purified L-serine dehydratase from P. asaccharolyticus revealed EPR spectra characteristic of a [3Fe-4S]+ cluster constitutin...

The NADH-quinone oxidoreductase from Paracoccus denitrificans consists of 14 subunits (Nqo1-14) and contains one FMN and eight iron-sulfur clusters. The Nqo3 subunit possesses fully conserved 11 Cys and 1 His in its N-terminal region and is considered to harbor three iron-sulfur clusters; however, only one binuclear (N1b) and one tetranuclear (N4) were previously identified. In this study, the ...

Oscillator strengths for the three lowest ground-state transitions 3p S0-3p 4s P1, 3p 6 S0-3p 4s P1, and 3p 6 S0-3p 3d P1 in argonlike K II are reported. The values were determined by lifetime measurements made using foil excitation of a fast ion beam, which yielded values t(4s P1)58.461.6 ns, t(3d P1)52.460.4 ns, and t(4s P1)50.4360.04 ns. Application of these results to the development of ext...

Many-body perturbation theory is implemented in order to calculate the isotope shifts of $4s$, $4p_{1/2}$, $4p_{3/2}$, $3d_{3/2}$, and $3d_{5/2}$ energy levels Ca$^+$, for even isotopes $A=$40, 42, 44, 46, 48. The results are presented mass shift field shift, as well higher-order shifts, quadratic nuclear polarization correction, cross term between shifts. Additionally, we examine King-plot non...