Results 51 to 60 of about 137,386 (200)

Assessment of malformations, variations and diameters of vessels forming the circle of Willis – An autopsy study in a non-cerebrovascular cohort

Translational Neuroscience, 2022
The collateral capacity of the circle of Willis (CoW) may play an important role in the development of ischemic strokes. The occurrence of classical polygon shows wide geographical variations and morphological data on diameters of the Willisian ...
Orosz László, Gyöngyösi Zoltán, Susán Zsolt, Siró Péter, Hoksbergen Arjan Willem, Csiba László, Fülesdi Béla   +6 more
doaj   +1 more source

Učinak stresnih hormona na moždanu hemodinamiku kod bolesnika s kroničnim posttraumatskim stresnim poremećajem [PDF]

, 2009
The aim of the study was to assess the possible correlation between catecholamine and cortisol levels and changes in cerebral hemodynamics in patients with chronic posttraumatic stress disorder (PTSD).
Dragutin Kadojić, Ivan Mihaljević, Ivo Matić, Lidija Šapina, Ljiljana Čengić, Marinko Dikanović, Milan Bitunjac, Mira Kadojić, Vida Demarin, Vladimir Vuletić, Zlatko Trkanjec   +10 more
core   +1 more source

Chandra HRC Localization of the Low Mass X-ray Binaries X1624-490 and X1702-429: The Infrared Counterparts

, 2004
We report on the precise localization of the low mass X-ray binaries X1624-490 and X1702-429 with the Chandra HRC-I. We determine the best positions to be 16:28:02.825 -49:11:54.61 (J2000) and 17:06:15.314 -43:02:08.69 (J2000) for X1624-490 and X1702-429,
Alan P. Smale, Augusteijn T., Balucinska-Church M., Church M. J., Joao F. Alves, Joseph W. Wellhouse, Oosterbroek T., Patrice Bouchet, Sandeep K. Patel, Stefanie Wachter, Swank J. H., Watson M. G.   +11 more
core   +1 more source

Chandra localisation and optical/NIR follow-up of Galactic X-ray sources [PDF]

, 2010
We investigate a sample of eleven Galactic X-ray sources recently discovered with INTEGRAL or RXTE with the goal of identifying their optical and/or near-infrared (NIR) counterpart.
Aleksandrovich, Bassani, Bird, Bird, Bozzo, Brandt, Brandt, C. G. Bassa, Cardelli, Charles, Chaty, Chenevez, Cornelisse, Cox, Cusumano, Dehnen, Dickey, E. M. Ratti, Galloway, Grebenev, Güver, In't Zand, In't Zand, J. C. A. Miller-Jones, Jain, Johnson, Jonker, Jonker, Kennea, Kuiper, Kuulkers, L. Kuiper, Lewin, Lutovinov, Lutovinov, M. A. P. Torres, Markwardt, Markwardt, Markwardt, Markwardt, Markwardt, Masetti, Masetti, Mattana, McCuskey, McMillan, Molkov, Molkov, Negueruela, Negueruela, Negueruela, Nelemans, Nespoli, Osten, P. G. Jonker, Pooley, Psaltis, Rahoui, Reid, Remillard, Revnivtsev, Reynolds, Rodriguez, Romano, Romano, Russell, Scaringi, Sguera, Sguera, Sguera, Shahbaz, Sidoli, Sidoli, Skrutskie, Stephen, Stephen, Stetson, Terrier, Tokunaga, Torrejón, Van Paradijs, Van Paradijs, Voges, Walter, Walter, Walter, Watson, Wen, Younes, Zacharias, Zolotukhin   +90 more
core   +5 more sources

Dynamic homogenization of composite and locally resonant flexural systems

, 2018
Dynamic homogenization aims at describing the macroscopic characteristics of wave propagation in microstructured systems. Using a simple method, we derive frequency-dependent homogenized parameters that reproduce the exact dispersion relations of ...
Pernas-Salomón, René, Shmuel, Gal
core   +1 more source

Frequency of occurrence of numbers in the World Wide Web [PDF]

, 2005
The distribution of numbers in human documents is determined by a variety of diverse natural and human factors, whose relative significance can be evaluated by studying the numbers' frequency of occurrence.
Albert, Argollo de Menezes, Argollo de Menezes, Bak, Barabási, Benford, Cowan, Dorogovtsev, Huberman, Huberman, J.F.F. Mendes, J.G. Oliveira, Landau, Mandelbrot, Miller, Newcomb, Pietronero, Raimi, Raimi, S.N. Dorogovtsev, Simon, Willis, Yule, Zipf   +23 more
core   +1 more source

The circle of Willis (1621-75) [PDF]

Journal of Neurology, Neurosurgery & Psychiatry, 2000
It is easily forgotten that in the century of Shakespeare and Marlowe there was no scientific or rational physiology as we now understand these disciplines. The era was of magic and witchcraft; insubstantial notions of the spiritus animalis were rife, and irrational speculation abounded.
openaire   +2 more sources

Posterior arterial circle of Willis anatomic variations and coronary artery dominance: is there a correlation?

Autopsy and Case Reports, 2011
Anatomic variations and anomalies in the arteries from the circle of Willis or the heart are common, sometimes even more common than the classic morphology.
David Gonçalves Nordon, Aristeu de Almeida Camargo Neto, Rodrigo Rejtman Guimarães, Orlando Fermozelli Rodrigues Júnior   +3 more
doaj   +1 more source

Discrete moving breather collisions in a Klein-Gordon chain of oscillators [PDF]

, 2007
We study collision processes of moving breathers with the same frequency, traveling with opposite directions within a Klein-Gordon chain of oscillators. Two types of collisions have been analyzed: symmetric and non-symmetric, head-on collisions.
A. Alvarez, Aubry, Aubry, Bang, Cai, Chen, Cuevas, Cuevas, Cuevas, Cuevas, Cuevas, Dauxois, Dauxois, Dmitriev, Doi, F.R. Romero, Flach, Forinash, Forinash, J. Cuevas, J.F.R. Archilla, MacKay, Maluckov, Marín, Meister, Morgante, Papacharalampous, Peyrard, Rasmussen, Sanz-Serna, Sepulchre, Sievers   +31 more
core   +2 more sources

Determination of the Unilaterally Damaged Region May Depend on the Asymmetry of Carotid Blood Flow Velocity in Hemiparkinsonian Monkey: A Pilot Study

Parkinson's Disease, 2022
The hemiparkinsonian nonhuman primate model induced by unilateral injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) into the carotid artery is used to study Parkinson’s disease.
Jincheol Seo, Kyung Seob Lim, Chang-Yeop Jeon, SeungHo Baek, Hyeon-Gu Yeo, Won Seok Choi, Sung-Hyun Park, Kang Jin Jeong, Jinyoung Won, Keonwoo Kim, Junghyung Park, Jiyeon Cho, Jung Bae Seong, Minji Kim, Yu Gyeong Kim, Jae-Won Huh, Samhwan Kim, Yong Hoon Lim, Hyung Woo Park, Hye Min Tak, Man Seong Heo, Ji-Woong Choi, Sun Ha Paek, Youngjeon Lee   +23 more
doaj   +1 more source