999 research outputs found
Interview with Samir Gharib
No full textلقاء مع المؤلف المصري سمير غريب حول كتاب "راية الخيال" للكاتب إبراهيم غريب وهو كتاب عن الحركة السريالية في العالم ويربط فيه المؤلف بين التاريخ والأدب والفنون الجميلة وعلم النفس والفكر والسينما. أجرى هذا اللقاء حسن شمس الدين.An interview with Egyptian author Samir Gharib about the book The Flag of Imagination by Egyptian writer Ibrahim Gharib. The book is about the surrealist movement around the world and adopts a mix of approaches and influences from history, literature, fine arts, psychology, philosophy, and cinema. Interview conducted by Hassan Shams El Din
Jamaan at the pass of Bi’rein. An Iron Age IIB-C Ammonite stronghold in central Jordan
No full textIn years 2015-2016 the Zarqa Directorate of the Department of Antiquities of the Hashemite Kingdom of Jordan carried out a rescue excavation at the site of Jamaan, an Iron Age IIB-C Ammonite stronghold 16 Km north of ‘Amman. The site survey and limited soundings allow to plot a plan of the structure, comprising an outer enclosure with a casemate wall, two cisterns, and a square podium tower, and to collect ceramic material dating from Iron Age IIB-C (c. 840-580 BC), as well as the head of a soft limestone statue, possibly depicting a local chief or an official. The latter adds to the relatively conspicuous number of statues from the Kingdom of Ammon, possibly illustrating the production of a non-royal commission
Rats desensitized by capsaicin alter their food intake regulation especially at cold ambient temperature
No full textAdult rats were treated subcutaneously for 10 days with capsaicin, and their food intake and body weight were recorded for almost 6 weeks after stopping the treatment. The animals were exposed to different ambient temperatures: Ta (22, 32, 35, 10 and 22°C). In the capsaicin-treated group a persistent increase in food intake and a reduction of body weight were observed when the animals were exposed to the lowest T a of 10°C. Starting from this temperature, food intake remained significantly higher than in controls until the end of the experiment at a Ta of 22°C. The discrepancy between body weight increase and food intake especially at low temperature (10°C) suggests that capsaicin could prevent suppression of food intake through the mediation of capsaicin-sensitive vagal afferent fibers by activation of cold-temperature-sensitive receptors
Introduzione
No full textSi delinea criticamente la nascita e la definizione della figura di Maria di Nazareth nella letteratura protocristiana, prospettando come, in un progressivo crescendo, tale figura divenga una delle polarità del culto antico
Intracerebroventricular capsaicin influences the body weight increasing of rats
No full textAdult rats were treated for ten days with capsaicin or with NaCl 0.9% directly injected into the lateral
cerebral ventricles through a surgically implanted cannula. A third group of rats was implanted with the
same cannula but did not receive any treatment. The food intake and the body weight were recorded
for at least six weeks after stopping the treatment. The animals were always kept at constant ambient
temperature of 22°C. The body weight of the capsaicin-treated group was reduced by the treatment, and
showed a regular but lower degree of recovery trend than the control groups after the treatment period. In
fact the capsaicin treated animals never reached the bodyweight of the controls.Nevertheless, food intake
did not significantly vary after the capsaicin treatment. On the basis of these and previous findings,we can
assume that capsaicin injected into the cerebral ventricles to rats kept at constant ambient temperature
can acts on hypothalamic neurons, but a permanent action on metabolic pathways can not be excluded
sj-pdf-1-pic-10.1177_09544062211032990 - Supplemental material for Design of a non-singular fast terminal sliding mode control for second-order nonlinear systems with compound disturbance
No full textSupplemental material, sj-pdf-1-pic-10.1177_09544062211032990 for Design of a non-singular fast terminal sliding mode control for second-order nonlinear systems with compound disturbance by Mohammad Reza Salehi Kolahi, Mohammad Reza Gharib and Ali Heydari in Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science</p
Comments on Defining the Contribution of Diastolic Vortex Ring to Left Ventricular Filling
No full textISPIV 2023 Ronald J. Adrian Award Lecture: "Four Decades of Chasing Particles"
No full textWe recount 40 years of our involvement in developing particle based imaging techniques for flow velocimetry with focus on particle image velocimetry and aperture-encoded imaging. Based on experiences gained with photograph-based particle streak velocimetry by M. Gharib at JPL, the approach was implemented fully digitally by C. Willert in late 1980s at UC San Diego. Subsequent work quickly led to the introduction of digital particle image velocimetry (DPIV) initially allowing PIV measurements of water flows at a (video) frame rate of 30 Hz but rapidly improving with the advancement of digital imaging technology. Three-dimensional imaging of particles using a single camera was also demonstrated using an triplet aperture placed in the camera's lens, a technique that we initially termed "defocusing particle tracking velocimetry." We provide an overview of recent applications using these and derived measurement techniques to illustrate their wide-spread utilization throughout present day experimental fluid dynamics and related fields. Given the steady advancements in both imaging technology and computational capabilities along with emerging technologies (e.g. machine learning, event-based imaging) we predict a continuous further evolution of particle-image based measurement techniques
Three-dimensional structure of ordered and chaotic vortex streets behind circular cylinders at low Reynolds numbers
No full textWe have investigated the spatial and temporal structure of certain cases of chaotic and organized vortex shedding in self-excited cylinder wakes at low Reynolds number (40–200) by extending hot-wire measurements to much larger downstream locations than our earlier measurements (Van Atta and Gharib, 1987) and performing concurrent smoke-wire flow visualizations. We describe here results for two cases in which chaotic vortex shedding is observed. The first is the single-vibration frequency locked-in case, in which the most highly disturbed regions of the vortex street, which produce chaotic spectra, are confined to compact spanwise-periodic propagating disturbed regions. The second is the multiple-vibration frequency case in which chaotic velocity spectra are observed at all spanwise locations
Calf venous volume during stand-test after a 90-day bed-rest study with or without exercise countermeasure.
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