نتایج جستجو برای: n5

تعداد نتایج: 1245  

Journal: :Zeitschrift fur Naturforschung. Section C, Biosciences 1977
K Burger R Süssmuth

Treatment of the lysogenic strain M. lysodeikticus 53-40 (N5) with ethyl methylaminosulfonate results in a slight increase in infective center concentration of N5 phages which is only detectable once disturbing cells had been eliminated by lysozyme. After conversion of ethyl methylaminosulfonate with radioactive labelled guanosine at 37 degrees C, N7-ethyl-guanine could be ascertained. Therefor...

2011
STEVEN SCHOCKAERT DIRK VERMEIR Steven Schockaert

Let α1 be a formula from N5 logic, and let α2 be the formula that is obtained from α1 by replacing conjunction, disjunction and implication by respectively a t-norm ⊗, a t-conorm ⊕ and an implicator →. Noting that V − 2 (w, a) ∈ {0, 1} and V + 2 (w, a) ∈ {0, 1} for all a ∈ At and w ∈ {h, t}, it follows easily from the definitions (17)–(23) that V1(w,α1) = 1 iff V2(w,α2) = [1, 1], V1(w,α1) = 1 i...

Journal: :The Tohoku journal of experimental medicine 1973
T Arakawa Y Honda K Narisawa

Decreased serum folate levels of patients receiving anticonvulsants have been well documented (Klipstein 1964; Reynolds 1968; Dahlke and Mertens-Roeslei 1967; Horwitz et al. 1968; Jensen and Olesen 1969; Houben et al. 1971). At present time, however, the mechanism for this abnormality seems to be remaining unsolved, even though several attractive theories have been advanced, that is, an increas...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1978
J Selhub I H Rosenberg

Folate binding activity of high affinity was identified in the particulate fractions of rat kidney homogenates. This binding activity cofractionated with alkaline phosphatase and maltase, two brush border membranes markers. With an enriched preparation of brush border membranes, freed of endogenous folate by acid treatment, the binding of [3H]olate was found to be saturable (Kb = 4.2 X 10(-11)M...

2002
G. B. Hess

The infrared absorption spectrum of C2F6 physisorbed on graphite in the commensurate 232 phase has two strong, narrow peaks associated with the n5 molecular vibration. They are interpreted as a Fermi resonance between n5 and the n81n11 combination band, which are shifted into near-coincidence by dynamic dipole coupling between the adsorbate molecules. The splitting and relative strengths have b...

Journal: :Mediators of Inflammation 1998
A Sarandakou G Giannaki A Malamitsi-Puchner D Rizos E Hourdaki E Protonotariou I Phocas

Serum levels of IL-1beta, IL-6 and TNF-alpha were measured in 48 healthy, termed neonates on the 1st (N1), 5th (N5) and 40th (N40) day after birth, compared with those in maternal serum (MS), umbilical cord (UC) and adult controls. Cytokine values in N1 and N5 were significantly elevated, than those in UC and in controls (P<0.0001). IL-1beta and IL-6 declined significantly from N1 to N40 (P<0.0...

Journal: :Diversity 2021

Citrus orchards receive increasing amounts of nitrogen fertilizer for the purpose optimal yields and good quality citrus fruits. Although effects increased on fruit trees have been reasonably well studied, few comparable studies examined impacts soil bacterial communities diversity, even though they play critical roles in orchard ecosystem functioning. In our study, Illumina MiSeq sequencing wa...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Qun Wan Brad C Bennett Mark A Wilson Andrey Kovalevsky Paul Langan Elizabeth E Howell Chris Dealwis

Dihydrofolate reductase (DHFR) catalyzes the NADPH-dependent reduction of dihydrofolate (DHF) to tetrahydrofolate (THF). An important step in the mechanism involves proton donation to the N5 atom of DHF. The inability to determine the protonation states of active site residues and substrate has led to a lack of consensus regarding the catalytic mechanism involved. To resolve this ambiguity, we ...

Journal: :Angewandte Chemie 2021

Batteries In their Research Article on page 26622, Xin Wang, Zhongwei Chen et al. report the engineering of oversaturated Fe-N5 catalytic sites for durable Li-S batteries.

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