Výsledky vyhledávání - "C. Karanikas"

Akademický článek

Inverses of measures on a class of discrete groups

Autor: C. Karanikas

Publikováno v: International Journal of Mathematics and Mathematical Sciences, Vol 14, Iss 2, Pp 261-268 (1991)

We examine a class of groups G, having a certain growth condition. We given an estimate for the norm of the inverse of an element in ll(G) in terms of the spectral radius and the cardinality of the support.

Externí odkaz: https://doaj.org/article/59c6feb6567246c4b72d70bcf8166463

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P-ATROPHY, A COMPUTER PROGRAM FED WITH AGE AND HIPPOCAMPUS VOLUME, AS MEASURED BY VOLBRAIN SOFTWARE, CALCULATES SCHELTENS’ SCALE GRADE AND EVALUATES ATROPHY

Autor: P. Koussis, P. Toulas, E. Lamprou, C. Karanikas, D. Kechagias, D. Glotsos, E. Lavdas

Publikováno v: Physica Medica. 104:S50-S51

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c581f0f3315504ff42a7194a771b195
https://doi.org/10.1016/s1120-1797(22)03160-x

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ATROPHY EVALUATION USING HIPPOCAMPUS AND CEREBRUM VOLUMES, AS MEASURED BY VOLBRAIN SOFTWARE, IN CORRELATION OF SCHELETENS’ SCALE

Autor: P. Koussis, P. Toulas, E. Lamprou, C. Karanikas, D. Glotsos, D. Kechagias, E. Lavdas

Publikováno v: Physica Medica. 104:S50

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dc1cb32b71192ba4ed86c1ae615b1d8c
https://doi.org/10.1016/s1120-1797(22)03159-3

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Enumeration and coding methods for a class of permutations and reversible logical gates

Autor: C. Karanikas, Nikolaos Atreas

Publikováno v: Facta universitatis - series: Electronics and Energetics. 31:241-255

We introduce a great variety of coding methods for Boolean sparse invertible matrices and we use these methods to create a variety of bijections on the permutation group P(m) of the set {1,2,...,m}. Also, we propose methods for coding, enumerating an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c03f053ce80e21d8b1801867d95f4db5
https://doi.org/10.2298/fuee1802241k

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Hamman's syndrome (spontaneous pneumomediastinum presenting as subcutaneous emphysema): A rare case of the emergency department and review of the literature

Autor: Grapatsas, K. Tsilogianni, Z. Leivaditis, V. Kotoulas, S. Kotoulas, C. Koletsis, E. Iliadis, I.S. Dahm, M. Trakada, G. Veletza, L. Kallianos, A. Huang, H. Kosmidis, C. Karanikas, M. Thomaidis, V. Porpodis, K. Zarogoulidis, P.

Pneumomediastinum is a rare clinical entity that concerns the clinicians in the emergency department. We present a case of a patient with spontaneous pneumomediastinum (Hamman's syndrome) that presented to our hospital's emergency department with cer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2127::40f154e011f727ca1f79b319a80fce2d
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3108003

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Boolean invertible matrices identified from two permutations and their corresponding Haar-type matrices

Autor: C. Karanikas, Nikolaos Atreas

Publikováno v: Linear Algebra and its Applications. 435:95-105

We construct a class R m of m × m boolean invertible matrices whose elements satisfy the following property: when we perform the Hadamard product operation R i ⊙ R j on the set of row vectors { R 1 , … , R m } of an element R ∈ R m we produce

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2f259b1ad68cdc09b96d0862cb1fbd8
https://doi.org/10.1016/j.laa.2011.01.005

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Phase II study of liposomal cisplatin (Lipoplatin™) plus gemcitabine versus cisplatin plus gemcitabine as first line treatment in inoperable (stage IIIB/IV) non-small cell lung cancer

Autor: N. Ziras, N. Mylonakis, S. Lampaki, J. Angel, C. Karanikas, C. Kosmas, A. Rapti, N. Politis, A. Athanasiou

Publikováno v: Lung Cancer. 68:240-247

Lipoplatin is a new liposomal cisplatin designed to reduce cisplatin toxicities without reducing efficacy. In the present randomized phase II study, we examined the efficacy and safety of a Lipoplatin-gemcitabine versus a cisplatin-gemcitabine combin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0877af441159d76de0b08558dc99339
https://doi.org/10.1016/j.lungcan.2009.06.017

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A Class of Sparse Unimodular Matrices Generating Multiresolution and Sampling Analysis for Data of Any Length

Autor: C. Karanikas, Nikolaos Atreas, Persefoni Polychronidou

Publikováno v: SIAM Journal on Matrix Analysis and Applications. 30:312-323

We introduce a class of sparse unimodular matrices $U^m$ of order $m \times m$, $m = 2,3, \ldots\,$. Each matrix $U^m$ has all entries $0$ except for a small number of entries $1$. The construction of $U^m$ is achieved by iteration, determined by the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c0063d78b2c8c0a673f9d593b9c48dd
https://doi.org/10.1137/050638679

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