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Search Results: 1 - 10 of 1260 matches for " Haouala Habib "
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Correlation between Inflammatory Markers and Lipid Parameters in a Tunisian Coronary Artery Disease Group  [PDF]
Rihab Sendesni, Dhaker Lahidheb, Manel Ayoub, Nedra Grira, Dhekra Lafi, Nejla Stambouli, Mabrouka El Oudi, Ezzedine Ghazouani, Habib Haouala, Zied Aouni, Chakib Mazigh
Open Access Library Journal (OALib Journal) , 2016, DOI: 10.4236/oalib.1102635
Aims: To evaluate the relationship between inflammatory biomarkers and lipid parameters in a Tunisian coronary artery disease group. Material and Methods: In the study, we have included 122 subjects with acute coronary syndrome (ACS) confirmed by coronary angiography, selected among patients admitted to the cardiology department and 162 subjects free of any cardiovascular disease, recruited from medical and paramedical volunteers. Lipid parameters, high sensitivity CRP (hsCRP) and proinflammatory cytokines (IL6, IL8 and TNFα) were determined for all patients and controls. Results: A highly significant difference (P < 103) was noted between the mean of the hsCRP in coronary patients (14.65 ± 9.81 mg/L) compared to controls (1.63 ± 1.75 mg/L). We note also a significant difference between the means of IL6 in the diseased population (11.56 ± 8.23 pg/mL) compared to controls (2.5 ± 0.84 pg/mL) with a value of P < 103. The hsCRP values are inversely correlated with the HDLc values. No association was found between IL 8 and the various lipid parameters. Patients having high IL6 values had higher levels of CT and CT/HDLc ratio. This correlation is statistically significant. Regarding TNFα, there is a positive and significant correlation with CT and LDLc. Conclusion: Significant correlation was found between inflammatory markers and lipids profile. This may explain the role of inflammation in the development of cardiovascular disease.
Evaluation of Cardiovascular Risk Factors in Tunisian Coronary Patients  [PDF]
Grira Nadra, Sandesni Rihab, Lamine Ossama, Aboulkassem Sana, Ayoub Manel, El Oudi Mabrouka, Stambouli Najla, Lahidheb Thaker, Haouala Habib, Mazigh Chakib, Aouni Zied
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104214
Introduction: Ischemic heart disease ranked among the leading causes of death worldwide. Several biological and genetic risk factors associated with acute coronary syndrome. By addressing the risk factors, it is possible to prevent most of the cardiovascular diseases and contribute to the reduction of complications of acute coronary syndrome. Material and Methods: Our study is a prospective study that was conducted to the main military hospital of instruction of Tunis. Recruitment involved 122 coronary (n = 122) and 705 controls (n = 705) totaling a population of 827 subjects. Data collection concerned socio-demographic characteristics, anthropometric measurements, habits and lifestyle, health status and biological assessment. Results: Our study reported a high prevalence of cardiovascular classic risk factor particularly overweight (62.3%), diabetes (63.1%) and hypertension (50%). In 55% of coronary patients, moderate to intermediate hyperhomocysteinemia was found, but it appears to be an independent risk factor. The results of our study show a significant difference in the genotypic frequencies of the C677T mutation in the MTHFR gene between the two populations, cases and controls. Conclusion: Acute coronary syndromes are the leading cause of sudden death in adults. The evaluation of risk factors after acute coronary syndrome episode is essential for a better management according to the recommendations of learned societies and standards of good practice.
Laplace Transform Of The Time Of Ruin For A Perturbed Risk Process Driven By A Subordinator
Moncef Elghribi,Ezeddine Haouala
IAENG International Journal of Applied Mathematics , 2009,
Supply Chain Management (SCM): Its Future Implications  [PDF]
Mamun Habib
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.29040

This keynote paper represents theory of Supply Chain Management (SCM) and its future implications as well as demonstrates chronological prospective of SCM in terms of time frame in different areas of manufacturing and service industries. SCM has been widely researched in numerous application domains during the last decade. Despite the popularity of SCM research and applications, considerable confusion remains as to its meaning. There are several attempts made by researchers and practitioners to appropriately define SCM. Amidst fierce competition in all industries, SCM has gradually been embraced as a proven managerial approach to achieving sustainable profits and growth. Finally, this study demonstrates Educational Supply Chain Management, as the application of SCM in the service industry, which would unlock other applications of SCM in different arenas. Integrated Tertiary Educational Supply Chain Management (ITESCM) model would be verified through Structural Equation Modeling (SEM) Techniques that would describe in this paper. The ITESCM model furnishes stakeholders of the supply chain with appropriate strategies to review and appraise their performance toward fulfillment of ultimate goals, i.e. producing high-ca- liber graduates and high-impact research outcomes, which represent two main contributions, for the betterment of the society.

Effets du type et de la position de l'explant sur l'induction de cals chez le gerbera (Gerbera jamesonii Bolus)
Haouala, F.,Farhat, N.,Chabchoub, L.
Tropicultura , 2010,
Abstract: Effects of Explant Kind and Position on Calli Induction in Gerbera (Gerbera jamesonii Bolus). Callogenesis in gerbera (Gerbera jamesonii Bolus 'Fredigor') was successfully induced from leaves and floral peduncles on a medium containing 1 mg.l-1 2.4-D and 1 mg.l-1 BA. Explant source and position had clear effects on callogenesis rate. This was higher for leaf explants and apical positions. Calli growth was good for the two kinds of explants. Calli were compact, nodulous and creamy only on media containing auxin (2.,4-D) and cytokinin (BA or kinetin). Fresh weight of calli depends of callogenesis medium, explants source and position.
Exploitation de la variabilité somaclonale pour la recherche d'oeillet (Dianthus caryophyllus L.) tolérant à la salinité
Haouala, F.,Hannachi, C.,Zid, E.
Tropicultura , 2003,
Abstract: Exploitation of Somaclonal Variability for Research of Carnation (Dianthus caryophyllus L.) Tolerant to Salinity. Callogenesis in carnation (Dianthus caryophyllus L. 'Légion d'Honneur') is possible from internodes in a medium containing 0.1 mg.l-1 NAA and 0.1 mg.l-1 TDZ. Regeneration from callus needs 2 mg.l-1 BA. Shoots rooting is obtained on a medium containing 0.5 mg.l-1 IBA. Callus growth is reduced and regeneration rate is very affected in presence of NaCl 100 mM. Shoot rooting is better without NaCl. Regenerated plants present somaclonal variation and those obtained under salt stress have a better relative tolerance to salinity than plants regenerated without salt.
Effet de la salinité sur la répartition des cations (Na+, K+ et Ca2+) et du chlore (Cl-) dans les parties aériennes et les racines du ray-grass anglais et du chiendent
Faouzi Haouala,Hanen Ferjani,Salem Ben El Hadj
Biotechnologie, Agronomie, Société et Environnement , 2007,
Abstract: Salinity effect on the assessment of cations (Na+, K+ and Ca2+) and chlorine (Cl-) in the aerial parts and roots of perennial ryegrass and bermudagrass. Seedling plants of bermudagrass, var. Tifway, and perennial ryegrass, var. Perfect, were cultivated in growth plate and sprinkled with running water added with different contents of NaCl (50 to 150 mM). One cultivation is led during summer time and another one during winter time. The ionic characteristics of vegetative organs of plants (leaves, roots) depend of the species and the season of cultivation. The plants of perennial ryegrass and bermudagrass accumulated Na+ and Cl- in their tissues but leaf contents for these ions were generally higher in perennial ryegrass especially at the highest concentration of NaCl. Salinity led to modifications in K+ and Ca2+ contents according to the species, kind of organ and season.
Anodic Stripping Voltammetric Determination of Nitrite Using Carbon Paste Electrode Modified with Chitosan  [PDF]
Ibrahim H. I. Habib
American Journal of Analytical Chemistry (AJAC) , 2011, DOI: 10.4236/ajac.2011.22035
Abstract: A simple method for anodic stripping voltammetric determination of nitrite using carbon paste electrode modified with biomolecular chitosan, is described. In this method, the electrode is activated electrochemically by scanning 5 replicates over the potential range from +500 to +1400 mV immersing in 0.5 M HCl solution. Following this step, the nitrite sample containing 0.1 M KCl is preconcentrated on the activated electrode at +500 mV for 30 s. The deposited anions are then oxidized by different modes of sweep in the oxidation direction. Chemical and electrical parameters affecting the voltammetric measurements are optimized. The peak current is linear proportional to the NO2- concentration within the range 0.41 - 4.1 µg/ml, with detection limit 0.187 µg/m using differential pulse mode. The relative standard deviation is 0.285% for 2.46 µg/ml (five replicates). No interference is observed due to oxygen dissolved in the sample so that nitrogen purging is not needed in this case. The result obtained by the modified electrode is more accurate and selective than the unmodified electrode.
A Bio-Hydraulic Modelling Approach to Control the Hemodialysis Patient Status—Calculus and Validation  [PDF]
Mohamed Habib Sellami
Open Journal of Fluid Dynamics (OJFD) , 2013, DOI: 10.4236/ojfd.2013.33026

We have developed a model permitting the control of the hemodialysis patient status. We have represented the functioning of each body compartment by a set of differential equations that express the mass balance of the carbonate and bicarbonate concentrations in each one. Experimental data from bibliography were analyzed and compared to our calculus. Results were well satisfying.

Cartoons’ Effect in Changing Children Mental Response and Behavior  [PDF]
Khaled Habib, Tarek Soliman
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.39033
Abstract: Factors that sculpture children’s way of thinking are found mostly in the environment where they grow up. These include daily events, memorable experiences and peak feelings. Cartoons are one of the daily habits for our children; studies have proven that an average child with a facility of a TV and a satellite connection at his home watches approximately 18,000 hours of television from kindergarten to high school graduation. How does this experience affect our children minds? Does it have positive or negative effects? What types of contents are delivered to our kids in a cartoonish show? Are all shows trustable, or shall parents pay monitoring attention to the TV shows? How does our children brain absorb and analysis information in the first place? These questions and others will be answered through this survey-experimental research [1] [2].
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