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Hydrogeology and Hydrochemistry of The Delta Wadi El-Arish Area Sinai Peninsula, EgyptEl-Bihery, Medhat A. 01 May 1993 (has links)
Delta Wadi El-Arish, Sinai Peninsula, Egypt, forms one of the most important parts of Egypt for industrial and agricultural expansion projects. This study focuses on the hydrogeology and the hydrochemistry of the Quaternary aquifer in the delta Wadi El-Arish area. Accurate information about the groundwater characteristics of the Quaternary aquifer will allow implementation of a sound water management policy for the Wadi El-Arish area.
The objectives of this study include: 1) determining the relationships between groundwater extraction and water levels and water quality using water-level measurements, total extraction of the wells, and chemical analyses of water samples; 2) determining the direction of groundwater flow using water-level measurements; 3) calculating the hydraulic parameters of the Quaternary aquifer using pumping test data; and 4) determining the hydrochemical characteristics of groundwater in the Quaternary aquifer.
The results of this study indicate that:
1. Potentiometric surface elevations have decreased by an average of about 0.5 m.
2. Potentiometric surface elevations have decreased in response to an increase in extraction rates.
3. The transmissivity of the lower Pleistocene calcareous sandstone (kurkar) unit is higher than the transmissivity of the upper Pleistocene sand and gravel alluvial deposits.
4. Groundwater in the upper Pleistocene sand and gravel aquifer is augmented with groundwater leaking from the overlying Holocene sand deposits through the intervening sandy clay aquitard.
5. Total dissolved solids (TDS) concentrations have been increased by an average of about 1,500 ppm.
6. An increase in sea water intrusion in the northern part of the study area has occurred.
7. Groundwater in the calcareous sandstone kurkar is of lower quality than groundwater in the alluvium sand and gravel.
Management of the groundwater resources should include the following recommendations:
1. No new pumping wells should be drilled in the area.
2. Accurate estimates for the total recharge should be determined using a more detailed water budget for the delta Wadi El-Arish area.
4. The operation of wells should be managed by an automatic control system.
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Pre-conflict interactions : a case study of Arab-Israeli confrontations, 1949-72Laakso, Charles Leon January 2010 (has links)
Digitized by Kansas Correctional Industries
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LEFT VENTRICULAR EJECTION FRACTION: A RETROSPECTIVE STUDY COMPARING 2D ECHOCARDIOGRAPHY AND GATED SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT) IN CLINICAL USE.Andersson, Jim January 2009 (has links)
<p><strong>Objectives</strong></p><p>The aim of this study was to compare left ventricular ejection fraction (LVEF) results derived from gated single photon emission computed tomography (SPECT) using Cedars-Sinai quantitative gated SPECT (QGS) processing software with results from 2D echocardiography, both obtained in routine clinical diagnostic use.</p><p> </p><p><strong>Methods</strong></p><p>Data from previously performed tests were obtained from 73 patients who had undergone both 2D echocardiography and gated SPECT within a time span of 6 months and had not had significant events that could influence LVEF. LVEF from 2D echocardiography was reassessed to obtain discrete values and then the data was compared using Bland-Altman analysis.</p><p> </p><p><strong>Results</strong></p><p>The correlation between the tests was shown to be good, but precision lacked. Bland-Altman analysis showed a bias of -0.8 percentage points when gated SPECT compared to mean values and 2 standard deviations (SD) ranged from -20.2 to 18.6.</p><p> </p><p><strong>Conclusions</strong></p><p>LVEF values from the two methods can differ quite a bit and comparisons between them should be done with great caution.</p> / <p><strong>Syfte</strong></p><p>Syftet med studien var att jämföra hur bra ultraljud av hjärta och isotopundersökning av hjärta stämmer överens när det gäller att visa hjärtats pumpförmåga.</p><p> </p><p><strong>Metod</strong></p><p>Data från tidigare utförda undersökningar av 73 patienter jämfördes. Patienter som hade gjort båda undersökningarna inom 6 månader och under perioden mellan undersökningarna inte hade haft hjärtinfarkt eller någon annan händelse som kan påverka hjärtats pumpförmåga valdes till studien.</p><p> </p><p><strong>Resultat</strong></p><p>Utslaget över hela studiepopulationen stämde resultaten från de båda undersökningarna bra överens. Jämförde man däremot resultaten från de båda undersökningarna med varandra patient för patient förekom mycket stora variationer.</p><p> </p><p><strong>Slutsats</strong></p><p>Resultaten angående hjärtats pumpförmåga kan skilja sig mycket från varandra. Jämförelser av värden från dessa två metoder bör därför göras med väldigt stor försiktighet.</p>
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LEFT VENTRICULAR EJECTION FRACTION: A RETROSPECTIVE STUDY COMPARING 2D ECHOCARDIOGRAPHY AND GATED SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT) IN CLINICAL USE.Andersson, Jim January 2009 (has links)
Objectives The aim of this study was to compare left ventricular ejection fraction (LVEF) results derived from gated single photon emission computed tomography (SPECT) using Cedars-Sinai quantitative gated SPECT (QGS) processing software with results from 2D echocardiography, both obtained in routine clinical diagnostic use. Methods Data from previously performed tests were obtained from 73 patients who had undergone both 2D echocardiography and gated SPECT within a time span of 6 months and had not had significant events that could influence LVEF. LVEF from 2D echocardiography was reassessed to obtain discrete values and then the data was compared using Bland-Altman analysis. Results The correlation between the tests was shown to be good, but precision lacked. Bland-Altman analysis showed a bias of -0.8 percentage points when gated SPECT compared to mean values and 2 standard deviations (SD) ranged from -20.2 to 18.6. Conclusions LVEF values from the two methods can differ quite a bit and comparisons between them should be done with great caution. / Syfte Syftet med studien var att jämföra hur bra ultraljud av hjärta och isotopundersökning av hjärta stämmer överens när det gäller att visa hjärtats pumpförmåga. Metod Data från tidigare utförda undersökningar av 73 patienter jämfördes. Patienter som hade gjort båda undersökningarna inom 6 månader och under perioden mellan undersökningarna inte hade haft hjärtinfarkt eller någon annan händelse som kan påverka hjärtats pumpförmåga valdes till studien. Resultat Utslaget över hela studiepopulationen stämde resultaten från de båda undersökningarna bra överens. Jämförde man däremot resultaten från de båda undersökningarna med varandra patient för patient förekom mycket stora variationer. Slutsats Resultaten angående hjärtats pumpförmåga kan skilja sig mycket från varandra. Jämförelser av värden från dessa två metoder bör därför göras med väldigt stor försiktighet.
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Anomaler Transport in ungeordneten iterierten AbbildungenFichtner, Andreas 26 April 2009 (has links) (PDF)
Anomale Diffusion ist nicht an stochastische Kräfte und eine große Zahl von Freiheitsgraden gebunden, sondern ist auch in chaotischen Systemen mit statischer Unordnung in den Bewegungsgleichungen zu beobachten. Einfache Modelle dieser niedrigdimensionalen Systeme, deren Dynamik durch iterierte Abbildungen vermittelt wird, können auf zufällige Irrfahrten in Zufallsumgebungen (random walks in random environments) abgebildet werden.
Sinai-Unordnung beschreibt eine spezielle Klasse dieser zufälligen Irrfahrten in Zufallsumgebungen, für die mit dem asymptotischen Verhalten der Entweichrate, der mittleren quadratischen Versetzung, der Zustandsdichte der Relaxationsraten bis hin zu der als Golosov-Phänomen bekannten dynamischen Lokalisierung analytische Resultate für verschiedene anomale Transporteigenschaften bekannt sind. Die vorliegende Arbeit untersucht numerisch eine rekurrente Erweiterung dieses auf Sprünge zu benachbarten Gitterpunkten beschränkten Modells auf die genannten Transporteigenschaften. Als wesentlicher Unterschied stellt sich dabei die Verletzung von detaillierter Balance im stationären Zustand heraus, der Auswirkungen auf das präasymptotische Verhalten der Transportkoeffizienten hat. Asymptotisch zeigt sich hingegen ein Verhalten wie bei der Sinai-Unordnung.
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Tourismus im Schatten des Terrors : eine vergleichende Analyse der Auswirkungen von Terroranschlägen (Bali, Sinai, Spanien) /Aschauer, Wolfgang. January 2008 (has links)
Univ., Diss.--Salzburg, 2007.
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Dynamical characterization of Markov processes with varying orderBauer, Michael. January 2009 (has links)
Chemnitz, Techn. Univ., Masterarb., 2008.
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Interpretation und voelkerrechtliche Bedeutung des Sinai-Abkommens zwischen Israel und Aegypten vom 4. September 1975 : unter Berücksichtigung der Ergänzungsabkommen mit den Vereinigten Staaten /Roman, Jochanan Hans. January 1978 (has links)
Zugl.: Heidelberg, Univ., Diss., 1977.
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Determining the number, cost, and staffing pattern of medical record transcriptionists submitted ... in partial fulfillment ... Master of Hospital Administration /Hanson, Paul Wendell. January 1963 (has links)
Thesis (M.H.A.)--University of Michigan, 1963.
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Topographische und historische Untersuchungen zum Sinaiproblem worauf beruht die Identifizierung des Ǧabal Mūsā mit dem Sinai? /Maiberger, Paul, January 1984 (has links)
The author's Habilitationsschrift--Johannes Gutenberg-Universität Mainz. / Includes bibliographical references (p. 150-175).
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