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171.
172.
Frdric Ooms Bernadette Norberg Emre M. Isin Neal Castagnoli Cornelis J. Van der Schyf Johan Wouters 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):e474-e475
The title compound, C7H5N3O2, is an inhibitor of nitric oxide synthase and monoamine oxidase. The N1H tautomer crystallized as a dimer and adopts a planar conformation assisted by intramolecular hydrogen bonding. 相似文献
173.
174.
Emre Alkan 《Monatshefte für Mathematik》2011,163(3):249-280
We prove a Lipschitz type summation formula with periodic coefficients. Using this formula, representations of the values at positive integers of Dirichlet L-functions with periodic coefficients are obtained in terms of Bernoulli numbers and certain sums involving essentially the discrete Fourier transform of the periodic function forming the coefficients. The non-vanishing of these L-functions at s = 1 are then investigated. There are additional applications to the Fourier expansions of Eisenstein series over congruence subgroups of \({SL_2(\mathbb{Z})}\) and derivatives of such Eisenstein series. Examples of a family of Eisenstein series with a high frequency of vanishing Fourier coefficients are given. 相似文献
175.
Murat Emre Hanhan Ramon Martínez-Máñez Jose Vicente Ros-Lis 《Tetrahedron letters》2012,53(19):2388-2391
The Suzuki coupling of aryl chlorides with boronic acids using a ferrocene-containing Pd(II)–diimine complex as catalyst, in aqueous media, under microwave heating is reported. A small amount of the catalyst (0.1%) was found to be highly effective for coupling unactivated aryl chlorides with boronic acids to form sterically hindered ortho-substituted biaryls. The same catalyst also enabled the coupling of aryl bromides and iodides with various boronic acids in very high yields. The catalyst is air stable and the catalytic reaction can be completed in 15 min. 相似文献
176.
177.
In this paper we integrate the rich yet fragmented insights from the extensive literature on the diffusion of innovation into an elegant, coherent model. Using complex adaptive systems theory as the overarching framework, we integrate prior literature around three constructs: agents, interactions, and an environment. The integrated model is presented in both natural language and as an agent-based simulation model. A series of validation experiments instill confidence that our agent-based model (and similar others) can be used as a virtual research laboratory. We provide theoretical and methodological directions for future research. 相似文献
178.
Emre Coskun 《Comptes Rendus Mathematique》2013,351(5-6):221-224
In this note, we prove that there exist stable Ulrich bundles of every even rank on a smooth quartic surface with Picard number 1. 相似文献
179.
Engineered 3D tissue models for cell-laden microfluidic channels 总被引:2,自引:0,他引:2
Young S. Song Richard L. Lin Grace Montesano Naside G. Durmus Grace Lee Seung-Schik Yoo Emre Kayaalp Edward H?ggstr?m Ali Khademhosseini Utkan Demirci 《Analytical and bioanalytical chemistry》2009,395(1):185-193
Delivery of nutrients and oxygen within three-dimensional (3D) tissue constructs is important to maintain cell viability.
We built 3D cell-laden hydrogels to validate a new tissue perfusion model that takes into account nutrition consumption. The
model system was analyzed by simulating theoretical nutrient diffusion into cell-laden hydrogels. We carried out a parametric
study considering different microchannel sizes and inter-channel separation in the hydrogel. We hypothesized that nutrient
consumption needs to be taken into account when optimizing the perfusion channel size and separation. We validated the hypothesis
by experiments. We fabricated circular microchannels (r = 400 μm) in 3D cell-laden hydrogel constructs (R = 7.5 mm, volume = 5 ml). These channels were positioned either individually or in parallel within hydrogels to increase
nutrient and oxygen transport as a way to improve cell viability. We quantified the spatial distribution of viable cells within
3D hydrogel scaffolds without channels and with single- and dual-perfusion microfluidic channels. We investigated quantitatively
the cell viability as a function of radial distance from the channels using experimental data and mathematical modeling of
diffusion profiles. Our simulations show that a large-channel radius as well as a large channel to channel distance diffuse
nutrients farther through a 3D hydrogel. This is important since our results reveal that there is a close correlation between
nutrient profiles and cell viability across the hydrogel.
Young Seok Song and Richard L. Lin have contributed equally to this contribution 相似文献
180.
Emre Alkan Maosheng Xiong Alexandru Zaharescu 《Journal of Mathematical Analysis and Applications》2009,356(2):752-763
We prove the existence of the pair correlation measure associated to torsion points on the real locus E(R) of an elliptic curve E and provide an explicit formula for the limiting pair correlation function. 相似文献