1,377,872 research outputs found
Sadek Hadjerès, Quand une nation s'éveille. Mémoires, édition critique: tome 1 (1928-1949)
No full textInternational audienceNé en 1928 à Larb'a Nath Irathen (Fort-National), Sadek Hadjerès est fils et petit-fils d'instituteur. Futur militant du parti nationaliste MTLD, puis militant et dirigeant du Parti communiste algérien (PCA), il raconte ici son enfance et son adolescence, en analysant les dynamiques et les crises au sein du mouvement national. Son témoignage est précieux en particulier lorsqu'il raconte le mouvement étudiant algérois, et les tensions avec les dirigeants nationalistes qui aboutissent à la crise dite "berbériste" de 1949 au cours de laquelle il quitte le parti
The resolution of the differential Sylvester matrix equations usin gbackward differentiation formula method
No full textThe resolution of the differential Sylvester matrix equations
\begin{equation}\label{1}
\left\{
\begin{array}{ll}
\dot{X}(t)=AX(t)+X(t)B+C,& \hbox{} \\
X(t_{0})=X_{0}, & t\in[t_{0},T_{f}],
\end{array}
\right.
\end{equation} où
usin gbackward differentiation formula method
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
The resolution of the differential Sylvester matrix equations usin gbackward differentiation formula method
No full textThe resolution of the differential Sylvester matrix equations
\begin{equation}\label{1}
\left\{
\begin{array}{ll}
\dot{X}(t)=AX(t)+X(t)B+C,& \hbox{} \\
X(t_{0})=X_{0}, & t\in[t_{0},T_{f}],
\end{array}
\right.
\end{equation} où
usin gbackward differentiation formula method
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
The resolution of the differential Sylvester matrix equations using Rosenbrock method
No full textThe resolution of the differential Sylvester matrix equations
\begin{equation}\label{1-3}
\left\{
\begin{array}{ll}
\dot{X}(t)=AX(t)+X(t)B+CD^{T},& \hbox{} \\
X(t_{0})=X_{0}, & t\in[t_{0},T_{f}],
\end{array}
\right.
\end{equation} où
using Rosenbrock method
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
The solve the matrix Riccati differential equation
No full textThe numerical solution of the continuous-time symmetric differential matrix Riccati equations using Rosenbrock method on the time interval of the form:
\begin{equation}\label{1} \left\{ \begin{array}{ll} \dot{X}(t)=A^TX(t)+X(t)A-X(t)BB^TX(t)+C^TC,& \hbox{} \\ X(t_{0})=X_{0}, & \end{array} \right. \end{equation}
where , and .
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
Interview with Zainab Sadek
No full textمقابلة مع الصحفية والأديبة المصرية، زينب صادق، تتحدث فيها عن عملها في الكتابة الصحفية، وكتاباتها الأدبية الفنية مثل رواية "لا تسرق الاحلام،"، وعن أعمالها المتمحورة حول العلاقات والمشاعر الإنسانية. كما تتحدث عن علاقتها مع الجمهور الذي تكتب له. قامت بالمقابلة درية شرف الدين.An interview with Egyptian journalist and writer, Zainab Sadek, in which she speaks about her journalistic career, and her literary and artistic writings, such as the novel "Do Not Steal Dreams." Sadek also speaks about her writings that focus on human emotions and relationships, and talks about how she builds a connection with her audience through her writings. The interview was conducted by Doria Sharaf El-Din
Interview with Saeed Sadek
No full textفي هذه المقابلة، يتحدث سعيد صادق، الخبير المصري في قياسات الرأي العام، عن سر نجاح المطرب الشعبي شعبان عبد الرحيم ويقول أن سر نجاحه يكمن في أسلوبه البسيط والتلقائي. أجرت المقابلة ايمان رافع.In this interview, Saeed Sadek, an Egyptian expert in public opinion analysis, speaks about the secret behind Shaaban Abdel Rehim's success as a singer. Sadek bases his theory on the spontaneity and simplicity of Abdel Rehim's singing style. The interview was conducted by Iman Rafi
Le risque qui pèse sur le pétrole est un pic de production lié à la politique, non à la géologie
No full textInterview de Sadek Boussen
Six-month evaluation of adhesives interface created by a hydrophobic adhesive to acid-etched ethanol-wet bonded dentine with simplified dehydration protocols.
No full textObjectives: To evaluate the efficacy of simplified dehydration protocols, in the absence of tubular occlusion, on bond strength and interfacial nanoleakage of a hydrophobic experimental adhesive blend to acid-etched, ethanol-dehydrated dentine immediately and after 6 months. Methods: Molars were randomly assigned to 6 treatment groups (n = 5). Under pulpal pressure simulation, dentine crowns were acid-etched with 35% H(3)PO(4) and rinsed with water. Adper Scotchbond Multi-Purpose was used for the control group. The remaining groups had their dentine surface dehydrated with ethanol solutions: group 1 = 50%, 70%, 80%, 95% and 3 x 100%, 30 s for each application; group 2 the same ethanol sequence with 15 s for each solution; groups 3, 4 and 5 used 100% ethanol only, applied in seven, three or one 30 s step, respectively. After dehydration, a primer (50% BisGMA + TEGDMA, 50% ethanol) was used, followed by the neat comonomer adhesive application. Resin composite build-ups were then prepared using an incremental technique. Specimens were stored for 24 h, sectioned into beams and stressed to failure after 24 h or after 6 months of artificial ageing. Interfacial silver leakage evaluation was performed for both storage periods (n = 5 per subgroup). Results: Group 1 showed higher bond strengths at 24 h or after 6 months of ageing (45.6 +/- 5.9(a)/43.1 +/- 3.2(a) MPa) and lower silver impregnation. Bond strength results were statistically similar to control group (41.2 +/- 3.3(ab)/38.3 +/- 4.0(ab) MPa), group 2 (40.0 +/- 3.1(ab)/38.6 +/- 3.2(ab) MPa), and group 3 at 24 h (35.5 +/- 4.3(ab) MPa). Groups 4 (34.6 +/- 5.7(bc)/25.9 +/- 4.1(c) MPa) and 5 (24.7 +/- 4.9(c)/18.2 +/- 4.2(c) MPa) resulted in lower bond strengths, extensive interfacial nanoleakage and more prominent reductions (up to 25%) in bond strengths after 6 months of ageing. Conclusions: Simplified dehydration protocols using one or three 100% ethanol applications should be avoided for the ethanol-wet bonding technique in the absence of tubular occlusion, as they showed decreased bond strength, more severe nanoleakage and reduced bond stability over time. (C) 2009 Elsevier Ltd. All rights reserved
Interview with Saeed Sadek
No full textمقابلة بين المراسلة إيمان رافع والخبير الإعلامى الدكتور سعيد صادق حول اجتماع الرئيس مبارك بالمجلس الأعلي للصحافة.An interview between the reporter, Iman Rafi, and Dr. Saeed Sadek, a media specialist, about President Mubarak's conference with the Supreme Press Council
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