Search Results - (Author, Cooperation:D. Chaudhuri)
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1Latest Papers from Table of Contents or Articles in PressY. Sancak ; A. L. Markhard ; T. Kitami ; E. Kovacs-Bogdan ; K. J. Kamer ; N. D. Udeshi ; S. A. Carr ; D. Chaudhuri ; D. E. Clapham ; A. A. Li ; S. E. Calvo ; O. Goldberger ; V. K. Mootha
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-11-16Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Amino Acid Sequence ; Calcium Channels/chemistry/genetics/*metabolism ; Calcium-Binding Proteins/genetics/*metabolism ; Cation Transport Proteins/genetics/*metabolism ; Cell Membrane/*metabolism ; EF Hand Motifs ; Gene Knockdown Techniques ; HEK293 Cells ; Humans ; Mitochondria/*metabolism ; Mitochondrial Membrane Transport Proteins/genetics/*metabolism ; Molecular Sequence Data ; Phylogeny ; Protein Structure, Tertiary ; ProteomicsPublished by: -
2Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] ON the hypothesis of the existence of ‘free electrons’ in metals, Drude, Lorentz, and recently Sommerfeld have explained the Wiedemann and Franz law, namely, that the ratio of the thermal and electrical conductivity is the same for all metals, and is proportional to the absolute temperature. In ...Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 1572-9168Source: Springer Online Journal Archives 1860-2000Topics: MathematicsNotes: Abstract Let N be the set of nonnegative integers, let λ, t, v be in N and let K be a subset of N, let V be a v-dimensional vector space over the finite field GF(q), and let W Kbe the set of subspaces of V whose dimensions belong to K. A t-[v, K, λ; q]-design on V is a mapping ℱ: W K→ N such that for every t-dimensional subspace, T, of V, we have $$\sum _{T \subseteq B}^{B \in WK} $$ ℱ (B)=λ. We construct t-[v, {t, t+1}, λ; q-designs on the vector space GF(q v) over GF(q) for t≥2, v odd, and q t(q−1)2λ equal to the number of nondegenerate quadratic forms in t+1 variables over GF(q). Moreover, the vast majority of blocks of these designs have dimension t+1. We also construct nontrivial 2-[v, k, λ; q]-designs for v odd and 3≤k≤v−3 and 3-[v, 4, q 6+q 5+q 4; q]-designs for v even. The distribution of subspaces in the designs is determined by the distribution of the pairs (Q, a) where Q is a nondegenerate quadratic form in k variables with coefficients in GF(q) and a is a vector with elements in GF(q v) such that Q(a)=0.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesStaff View
ISSN: 1572-9168Source: Springer Online Journal Archives 1860-2000Topics: MathematicsType of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 1434-601XSource: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Zusammenfassung Das Gesetz der Additivität für den Diamagnetismus wird an einer Reihe hydratisierter Salze mit dem Ergebnis geprüft, daß eine Abweichung von diesem Gesetz gefunden wird, die der Hydratationswärme der untersuchten Substanzen proportional ist.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] We have concentrated the precursor contained in wheat bran, and have obtained a preparation from which 27-8 mgm. nicotinic acid per gm. can be liberated. The purification involves thirteen stages, including chromatography and fractional precipitation with organic solvents. The precursor preparation ...Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1573-7586Keywords: Difference set ; Galois ring ; partial difference set ; relative difference setSource: Springer Online Journal Archives 1860-2000Topics: Computer ScienceMathematicsNotes: Abstract We use Galois rings to construct partial difference sets and relative difference sets in non-elementary abelianp-groups. As an example, we also use Galois ringG R(4, 2) to construct a (96,20,4) difference set in Z4 × Z4 × Z6.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 1573-7586Keywords: Difference set ; Galois ring ; partial difference set ; relative difference setSource: Springer Online Journal Archives 1860-2000Topics: Computer ScienceMathematicsNotes: Abstract We use Galois rings to construct partial differencesets and relative difference sets in non-elementary abelian p-groups.As an example, we also use Galois ring GR(4,2) toconstruct a (96,20,4) difference set in Z4×Z4×Z6.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1434-6052Source: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract. Heavy right-handed neutrinos are of current interest. The interactions and decay of such neutrinos determine their decoupling epoch during the evolution of the universe. This in turn affects various observable features like the energy density, nucleosynthesis, CMBR spectrum, galaxy formation and baryogenesis. Here, we consider reduction of right-handed electron-type Majorana neutrinos, in the left–right symmetric model, by the $W_{\mathrm{R}}^+W_{\mathrm{R}}^-$ channel and the channel originating from an anomaly, involving the $SU(2)_{\mathrm{R}}$ gauge group, as well as decay of such neutrinos. We study the reduction of these neutrinos for different ranges of left–right model parameters, and find that, if the neutrino mass exceeds the right-handed gauge boson mass, then the neutrinos never decouple for realistic values of the parameters, but, rather, decay in equilibrium. Because there is no out-of-equilibrium decay, no mass bounds can be set for the neutrinos.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1434-601XSource: Springer Online Journal Archives 1860-2000Topics: PhysicsType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1434-601XSource: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Zusammenfassung Es wird der Curiepunkt eines Nickeldrahtes unter verschiedenen Spannungen beobachtet. Es zeigt sich, daß er qualitativ übereinstimmend mit der Heisenbergschen Theorie des Ferromagnetismus sinkt. Es ergibt sich eine bedeutsame Übereinstimmung zwischen den Kurven des gegen die Temperatur aufgetragenen Temperaturkoeffizienten des Widerstandes und der Dehnung, und es wird auf ihre Ähnlichkeit mit der Kurve der gegen die Temperatur aufgetragenen spezifischen Wärme eines ferromagnetischen Körpers hingewiesen.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1434-601XSource: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Zusammenfassung Die Winkelverteilung der Intensität für die Ramanlinien 4215, 4555, 4617 des Benzols wird für die Winkel zwischen 15 und 1450 untersucht. Es zeigt sich, daß die Verteilung dem 1+cos2 Θ-Gesetz innerhalb der Grenze der Versuchsfehler folgt.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1434-601XSource: Springer Online Journal Archives 1860-2000Topics: PhysicsType of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1434-601XSource: Springer Online Journal Archives 1860-2000Topics: PhysicsType of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 0006-3525Keywords: Chemistry ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyNotes: The effects of concentrated aqueous solutions of a neutral salt, lithium bromide, on randomly coiled sodium poly-L-glutamate have been followed using high resolution infrared and nuclear magnetic resonance spectroscopy. The results suggest that two processes are taking place. First, at low concentrations 0-4M LiBr, a simple electrolyte effect occurs in which some water is removed from the polymer by an electrostriction effect. Second, a more intense interaction (〉4M LiBr), apparently cooperative, occurs in which the competition for the available water in the system forces the electrolyte to form an association with the peptide group either as a fully or partially hydrated species. It is proposed that the anion is associated with the nitrogen atom of the peptide group and the cation is situated within the vicinity of the carbonyl oxygen.Additional Material: 8 Ill.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 0022-3832Keywords: Chemistry ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyPhysicsNotes: Cellulose acetate films, cellophane, and cellulose model fibers are mercaptoethylated by an addition reaction with ethylene sulfide. A monomer is polymerized in the presence of the cellulose derivative obtained, so that chain transfer to SH groups can take place. Evidence for grafting is presented. The effect of reaction time, catalyst concentration, and monomer concentration is given in the form of tables and graphs. The initial rate of grafting is shown to be proportional to the square root of the catalyst concentration, and, roughly, to the concentration of the monomer. Rates of grafting of the order of 10-15 wt.-%/hr. are easily obtained.Additional Material: 4 Ill.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 0022-3832Keywords: Chemistry ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyPhysicsNotes: The data that were presented in Part I are compared with theory. It is found that the weight increase of a mercaptoethylated cellulose acetate film during polymerization of styrene in the presence of this film is proportional to the initial monomer content and to 1 - exp {-bt} where t is the time and b a constant proportional to (catalyst concentration)1/2 times (initiation efficiency)1/2. This equation is in accordance with the theory of grafting developed by Fox and co-workers, when the monomer conversion is low, but it is found experimentally that its validity extends well beyond values of the monomer conversion for which the equation should no longer represent a good approximation. (1) The composition of the film and therefore the monomer concentration and the rate constants change during grafting. (2) When grafting is high it becomes impossible quantitatively to remove the homopolymer by extraction of the film. (3) Chain transfer takes place not only to SH groups but also to nonmercaptoethylated parts of the cellulose acetate, It is believed that three causes are responsible for this result.Additional Material: 2 Ill.Type of Medium: Electronic ResourceURL: