336,411 research outputs found
Hopkins (Nicholas S.) Ibrahim (Saad Eddin) eds Arab Society
No full textElboudradi Hassan. Hopkins (Nicholas S.) Ibrahim (Saad Eddin) eds Arab Society. In: Archives de sciences sociales des religions, n°70, 1990. p. 274
« Entretien avec le Dr Mohammad Saad Katatnî »
No full textEntretien avec Dr Mohamad Saad Katatni - ex président de l’Assemblée du peuple et actuel président du parti Liberté et Justice des Frères musulmans -, Al-Misrî al-Yawm, 17 octobre 2012 Le Dr Saad Katatnî, candidat déclaré à la présidence du parti Liberté et Justice, dans une déclaration à Al-Misri al-Yawm, dit : voici les causes de l’incident survenu entre les Frères musulmans et le Conseil militaire Le Dr Muhammad Saad al-Katatnî, ex président de l’Assemblée du peuple et candidat actuel à la..
Solutions for certain classes of the Riccati differential equation
No full textWe derive some analytic closed-form solutions for a class of Riccati equations y'(x) - lambda(0)(x) y(x) +/- y(2)(x) = +/- s(0)(x) where lambda(0)( x), s(0)( x) are C-infinity- functions. We show that if delta(n) = lambda(n)s(n-1) - lambda(n-1)s(n) = 0, where lambda(n) = lambda(')(n-1) + s(n-1) + lambda(0)lambda(n-1) and s(n) = s(n-1)(')+ s(0)lambda(k-1) , n = 1, 2, ... , then the Riccati equation has a solution given by y( x) = -/+ s(n-1)(x)/ lambda(n-1)(x). Extension to the generalized Riccati equation y'(x) + P(x) y(x) + Q(x) y(2)(x) = R(x) is also investigated
Sunder, Ahmed Saad, [No Service Number]
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/420006Surname: SUNDER. Given Name(s) or Initials: AHMED SAAD. Military Service Number or Last Known Location: [No Registration Number]. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 57721.244586
Item: [2016.0049.52267] "Sunder, Ahmed Saad, [No Service Number]
Comparison of SAAD and SAR procedures for equivalent dose determination using quartz
No full textComparisons between the single-aliquot additive-dose (SAAD) and single-aliquot regenerative-dose (SAR) procedures are made using 150-212 μm quartz grains separated from three sediment samples. Growth curves and equivalent doses from the two procedures are compared directly using single aliquots of quartz. With appropriate corrections for the loss of signals in our SAAD protocol, the SAAD and SAR growth curves coincide well. It is confirmed that the luminescence correction in the SAAD protocol can only be applied to samples for which the natural signal is in the linear part of the growth curve. A new correction method is proposed. © 2003 Elsevier Ltd. All rights reserved.link_to_subscribed_fulltex
Physical properties of root-canal filling materials
No full textRoot canal filling materials are used to obturate the root canal space. Several studies have been made in
order to investigate their physical properties. A general review of these properties are discussed in this
paper.Corresponding Author:
Prof. Saad Al Nazhan,
College of Dentistry, Department of Restorative Dental Sciences, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia.
Email: [email protected]
NMR Studies of Models Having the Pt(d(GpG)) 17-Membered Macrocyclic Ring Formed in DNA by Platinum Anticancer Drugs: Pt Complexes with Bulky Chiral Diamine Ligands
No full textThe highly distorted Pt(d(G*pG*)) (G* = N7-platinated G) 17-membered macrocyclic ring formed by cisplatin anticancer drug binding to DNA alters the structure of the G*G* base pair steps, canting one base, and increases dynamic motion, complicating solution structural studies. However, the ring appears to favor the HH1 conformation (HH1 denotes head-to-head guanine bases, 1 denotes the normal direction of backbone propagation). Compared to cisplatin, analogues with NH groups in the carrier ligand replaced by bulky N-alkyl groups are more toxic and less active and form less dynamic adducts. To examine the molecular origins for the biological effects of steric bulk, we evaluate Me4DABPt(d(G*pG*)) models; the bulk and chirality of Me4DAB (N,N,N′,N′-tetramethyl-2,3- diaminobutane with S,S or R,R configurations at the chelate ring carbons) impede dynamic motion and enhance the utility of NMR methods for identifying and characterizing conformers. Unlike past studies of adducts with such bulky carrier ligands, in which no HH conformer was found, the Me4DABPt(d(G*pG*)) adducts did form the HH1 conformer, providing compelling evidence that the sugar-phosphate backbone can impose constraints sufficient to overcome the alkyl-group steric effects. The HH1 conformer exhibits no significant canting. The (S,S)-Me4DABPt(d(G*pG*)) adduct has the least amount of the "normal" HH1 conformer and the greatest amount of the ΔHT1 conformer (ΔHT1 = head-to-tail G* bases with Δ chirality) ever observed (88% under some conditions). Thus, our results lead us to hypothesize that the low activity and high toxicity of analogues of cisplatin having carrier ligands with N-alkyl groups arise from the low abundance and minimal canting of the HH1 conformer and possibly from the adverse effects of an abundant ΔHT1 conformer. The new findings advance our understanding of the chemistry of the Pt(d(G*pG*)) macrocyclic ring and of the effects of carrier-ligand steric bulk on the properties of the ring
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
A utility-based algorithm for joint uplink-downlink scheduling in wireless cellular networks
No full textThe major driver for deploying next generation wireless cellular systems is their ability to efficiently deliver resource-demanding services, many of which require symmetric communication between an uplink mobile user and a downlink mobile user that belong to the same network. In this work, we propose a utility-based joint uplink-downlink scheduling algorithm suitable for wireless services involving pairwise communication among mobile users. While most existing literature focuses on downlink-only or uplink-only scheduling algorithms, the proposed algorithm aims at ensuring a utility function that jointly captures the quality of service in terms of delay and channel quality on both links. By jointly considering the time varying channel conditions in both the uplink and the downlink directions, the proposed algorithm avoids wasting of resources and achieves notable performance gains in terms of increased number of active connections, lower packet drop rate, and increased network throughput. These gains are achieved with a tradeoff cost in terms of complexity and signaling overhead. For overhead reduction in practical scenarios, we propose an implementation over clusters within the network. © 2011 Elsevier Ltd. All rights reserved.Agrawal R., 2008, IEEE J SEL AREA COMM, V26, P1462; ALMAJANO L, 2002, IEEE VEH TECHN C VTC; Alpcan T, 2008, WIREL NETW, V14, P647, DOI 10.1007-s11276-006-0006-5; Bender P, 2000, IEEE COMMUN MAG, V38, P70, DOI 10.1109-35.852034; Berardinelli RL, 2008, P INT S PERS IND MOB; CHIANG CH, 2007, P IEEE GLOB TEL C GL; DAS S, 2003, P IEEE INFOCOM APR; Dianati M, 2007, IEEE T VEH TECHNOL, V56, P1749, DOI 10.1109-TVT.2007.897209; Goldsmith A., 2005, WIRELESS COMMUNICATI; Goodman D, 2000, IEEE PERS COMMUN, V7, P48, DOI 10.1109-98.839331; GRIEGER M, 2009, P IEEE GLOB COMM C G; Han Z, 2008, RESOURCE ALLOCATION FOR WIRELESS NETWORKS: BASICS, TECHNIQUES, AND APPLICATIONS, P1; Han Z, 2007, IEEE T WIREL COMMUN, V6, P423, DOI 10.1109-TWC.2007.05221; Huang JW, 2009, IEEE J SEL AREA COMM, V27, P226, DOI 10.1109-JSAC.2009.090213; KOU M, 2009, P INT C COMM MOB COM; Kwan R, 2009, IEEE SIGNAL PROC LET, V16, P461, DOI 10.1109-LSP.2009.2016449; KWON S, 2003, P IEEE VEH TECHN C V; LASAULCE S, 2007, P ICST ACM INT C PER; Lee JW, 2006, IEEE ACM T NETWORK, V14, P1, DOI 10.1109-TNET.2005.863480; Liu X, 2001, IEEE J SEL AREA COMM, V19, P2053, DOI 10.1109-49.957318; MAKAYA C, 2003, P IEEE VEH TECHN C V; Marsch P., 2009, P IEEE INT C COMM IC; MAYER T, 2006, P IEEE INT C COMM IC; NAVAIE K, 2006, P IEEE INT C COMM IC; NGUYEN T, 2002, IEEE POTENTIALS, V21, P16; Price J, 2007, IEEE T INFORM THEORY, V53, P4330, DOI 10.1109-TIT.2007.907475; Saad W, 2009, IEEE SIGNAL PROC MAG, V26, P77, DOI 10.1109-MSP.2009.000000; Sallent O, 2001, IEEE J SEL AREA COMM, V19, P1893, DOI 10.1109-49.957305; Saraydar CU, 2001, IEEE J SEL AREA COMM, V19, P1883, DOI 10.1109-49.957304; SHABANI M, 2004, P IEEE INT S COMP CO; SHABANI M, 2004, P IEEE SARN S ADV WI; Shamai (Shitz) S., 2004, P JOINT WORKSH COMM; SHIN S, 2006, P INT C QUAL SERV HE; Stanczak S., 2006, RESOURCE ALLOCATION; Su G.-M., 2005, P IEEE INT C AC SPEE; Yaacoub E, 2011, AEU-INT J ELECTRON C, V65, P320, DOI 10.1016-j.aeue.2010.03.007; Yaacoub E, 2010, IET COMMUN, V4, P2217, DOI 10.1049-iet-com.2009.0722; Yaacoub E., 2010, P 17 INT C TEL 201054
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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