Faculte des science Ben Msik

Casablanca, Morocco

Faculte des science Ben Msik

Casablanca, Morocco
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Jafri A.,Hassan II University | Jabari M.,Division dhygiene de la prefecture de Sidi Othmane | Dahhak M.,Direction des statistiques | Saile R.,Hassan II University | Derouiche A.,Faculte des science Ben Msik
Ethnicity and Disease | Year: 2013

Objectives: Study of overweight and obesity among women from modest neighborhoods in Casablanca and the related factors influencing this phenomenon. Design: A survey was conducted in 6 neighborhoods of Casablanca using multistage cluster sampling. Anthropometric parameters and body composition were measured, and information about food habits, sociodemographic situation and body image perception were collected using a questionnaire. Participants: 425 adult women from popular neighborhoods in Casablanca. Results: We found a prevalence of 47% obesity and 36% overweight. Obesity and overweight exceeded 80% in all age categories except among women ,25 years, where we found a prevalence of 44% overweight. Furthermore, abdominal obesity prevalence was high in all age categories with an overall prevalence of 67%. Body image perception data showed that 62% women perceived their weight as being either normal or insufficient, 46% of those women were, in fact, either overweight or obese. Fattening products were used by 12% of the population at least once, especially by women ,35 years, 68% of these women were overweight or obese at the time of the study. Conclusions: The problem of obesity in this society is amplified by its perception of a regular weight and by the use of fattening substances even among young and educated women. (Ethn Dis. 2013;23[3]:369-373).

Kocsis L.,University of Lausanne | Kocsis L.,University of Brunei Darussalam | Gheerbrant E.,University Pierre and Marie Curie | Mouflih M.,Faculte des science Ben MSik | And 4 more authors.
Chemical Geology | Year: 2016

Marine vertebrate fossils from late Cretaceous-early Paleogene shallow marine phosphorites of Morocco were investigated for their trace element compositions and neodymium isotopic ratios in order to constrain marine and depositional conditions. The various analyzed fossils are separated into two groups with different geochemical compositions: (1) shark tooth enameloid with generally lower Cu, Ba, rare earth elements (REEs) and U, and higher Na, Zn and Sr concentrations than (2) dentine, bone, and coprolites. These differences are related to the originally different structures of these fossils. All the fossils revealed very similar shale-normalized REE patterns, with negative Ce anomaly and heavy REE enrichment mimicking the REE pattern of modern oxic-seawater. The results therefore suggest REE uptake by the fossils from an early diagenetic pore fluid that was dominated by seawater. Importantly, the Ce anomaly does not vary among the different types of fossil remains and the values are very similar in a given layer. Moreover, a step-wise shift towards lower Ce/Ce* values from older to younger beds is apparent. Nd isotope analyses across the phosphorite succession yielded minor variation with an average εNd(t) value of -6.2±0.4 (n=12) indicating no major changes in the REE source during the studied interval. The relatively radiogenic values reflect Tethyan connection and/or important contribution of a mafic Nd source from weathering in the region. The age-related trend in the Ce anomaly is interpreted to be due to changes in redox and/or pH conditions of the upwelling seawater on the shallow shelf areas. The driving force of these changes was probably an extended global oceanic circulation, especially enhanced connection and water exchange between the North and South Atlantic. © 2015 Elsevier B.V.

Benazzouz A.,Faculte des science Ben MSik | Benazzouz A.,Institute National Of Recherche Halieutique | Mordane S.,Faculte des science Ben MSik | Orbi A.,Institute National Of Recherche Halieutique | And 5 more authors.
Continental Shelf Research | Year: 2014

A new methodology to derive an SST-based upwelling index was based on a rigorous spatial analysis of satellite SST fields and their variability, by referring to previous works, from Wooster et al. (1976) to Santos et al. (2011). The data was precautiously processed by considering data quality aspects (including cloud cover) and the best way to derive accurate coastal SST and its offshore reference. The relevance of the developed index was evaluated by comparing its spatial and seasonal consistency against two wind-based indices as well as with the previous SST-based indices, largely superseding these later ones in term of overall quality and spatio-temporal dynamic. Our index adequately describes the spatio-temporal variability of the coastal upwelling intensity in the Canary Current upwelling system and has the advantage of describing complementary aspects of the coastal dynamics of the region that were not covered by Ekman-based indices.The proposed methodology is generic and can be easily applicable to various coastal upwelling systems, especially the four major eastern boundary upwelling ecosystems. © 2014 Elsevier Ltd.

Harchane H.,Hassan II University | El Addas H.,Hassan II University | Amsaguine S.,Hassan II University | El Amrani N.,Hassan II University | Radallah D.,Faculte des science Ben Msik
Phytotherapie | Year: 2012

Fenugreek, Trigonella foenum graecum, the Arabic name Helba, is one of the oldest medicinal plants and culinary. Its seeds, with their chemical compounds, appear to be of great value food and herbal medicines have many virtues. Our results show that chronic treatment of rats with aqueous extract of fenugreek seeds, used in Moroccan traditional medicine, improves the lipid profile with decreased total cholesterol (34%), triglycerides (32%), LDL-cholesterol (38%) associated with an increase in HDL-cholesterol (36%). It also facilitates weight gain in rats, allowing an increase in muscle mass while limiting (or reducing) the excess fat. Fenugreek stimulates the appetite and acts as a natural anabolic allowing better utilization of dietary intakes. Furthermore, macroscopic and histopathological study that we conducted on the liver and kidneys of rats treated with fenugreek shows no sign of cytotoxicity, suggesting that consumption of aqueous extract of seeds of this plant would no adverse effect on the functioning of the body and is harmless to health. © 2012 Springer-Verlag France.

Benazzouz A.,Institute National Of Recherche Halieutique | Pelegri J.L.,CSIC - Institute of Marine Sciences | Demarcq H.,CIRAD - Agricultural Research for Development | Machin F.,InvestigAdHoc | And 4 more authors.
Journal of Geophysical Research C: Oceans | Year: 2014

We use a combination of satellite, in situ, and numerical data to provide a comprehensive view of the seasonal coastal upwelling cycle off NW Africa in terms of both wind forcing and sea surface temperature (SST) response. Wind forcing is expressed in terms of both instantaneous (local) and time-integrated (nonlocal) indices, and the ocean response is expressed as the SST difference between coastal and offshore waters. The classical local index, the cross-shore Ekman transport, reproduces reasonably well the time-latitude distribution of SST differences but with significant time lags at latitudes higher than Cape Blanc. Two nonlocal indices are examined. One of them, a cumulative index calculated as the backward averaged Ekman transport that provides the highest correlation with SST differences, reproduces well the timing of the SST differences at all latitudes (except near Cape Blanc). The corresponding time lags are close to zero south of Cape Blanc and range between 2 and 4 months at latitudes between Cape Blanc and the southern Gulf of Cadiz. The results are interpreted based on calculations of spatial and temporal auto and cross correlations for wind forcing and SST differences. At temporal scales of 2-3 weeks, the alongshore advection of alongshore momentum compensates for interfacial friction, allowing the upwelling jet and associated frontal system to remain active. We conclude that the coastal jet plays a key role in maintaining the structure of coastal upwelling, even at times of relaxed winds, by introducing a seasonal memory to the system in accordance with the atmospheric-forcing annual cycle. © 2014. American Geophysical Union. All Rights Reserved.

Tahiri A.,CNRS Institute of Earth Sciences | El Hassani A.,CNRS Institute of Earth Sciences | El Hadi H.,Faculte des science Ben Msik
Geologie de la France | Year: 2011

The Rabat-Salé-Zemmour-Zaer area (north-western Morocco) exposes Palaeozoic rocks spanning from the Late Precambrian (600 Ma-old granite) to the Lower Permian (270 Ma-old lavas). These rocks show a great variety of sedimentological, paleontological, magmatic, or tectonic events in numerous accessible and well-exposed outcrops. These outcrops are taken as examples to develop the concept of Moroccan geological heritage through geotouristic field courses for high-school and university students, and to promote the knowledge (inventory), preservation and safeguarding of this geological heritage, which includes invaluable geosites for international geological correlations.

Kocsis L.,University of Lausanne | Gheerbrant E.,CNRS Center for Research on Palaeobiodiversity and Palaeoenvironments | Mouflih M.,Faculte des science Ben MSik | Cappetta H.,Montpellier University | And 2 more authors.
Palaeogeography, Palaeoclimatology, Palaeoecology | Year: 2014

Fossil biogenic apatites were studied for their geochemical composition across the late Cretaceous-early Eocene Moroccan phosphate series in the Ouled Abdoun and Ganntour basins in Morocco in order to characterize paleoenvironmental conditions and to improve stratigraphy. The vertebrate remains show particularly good structural, mineralogical and chemical preservations, which relate to the favorable depositional environment of the phosphorite. The main studied fossils - shark tooth enameloid and dentine, and coprolites - show large range in δ13C values from -14 to +6‰, which can be coupled to different carbon sources. Enameloid yielded mostly positive δ13C isotopic compositions that are comparable with values reported from modern teeth. Coprolites have the lowest δ13C values that reflect burial conditions with intensive organic matter recycling.The large variation in δ18OPO4 values of the shark teeth can be related to ecological differences. However, the mean δ18OPO4 data reflect important temporal variation along the series, together with the corresponding average δ13C values. Comparisons with the global isotope records allow identifying the Early Eocene Climatic Optimum in the top of the Ouled Abdoun series (above Bed 0'). The isotope data further suggest a sedimentary gap during the latest Thanetian and the Paleocene Eocene Thermal Maximum. The top of the Paleocene series (Bed IIa) can be dated to late Selandian-early Thanetian, with the recognition of the Early Late Paleocene Event (ELPE). The Eritherium Bone Bed, that yielded the earliest known placental mammals from Africa, would be located below the ELPE and therefore, cannot be younger than late Selandian.The isotope data from the older Paleocene (Bed IIb) and Cretaceous (upper Bed III) beds in the Ouled Abdoun Basin can be correlated with the latest Danian-early Selandian and the latest Maastrichtian global isotope record, respectively. Based on the δ18OPO4 data, the Cretaceous layers of the Ganntour Basin cover most of the Maastrichtian period except the very early part. All these early Paleogene and Cretaceous chemostratigraphic ages, however, need further confirmations from other proxies. Yet, the interpretations are in general agreement with the biostratigraphy derived from the selachian fauna.© 2013 Elsevier B.V.

Zemmouri E.M.,Ecole Nationale Superieure dArts et Metiers Meknes | Behja H.,Ecole Nationale Superieure dArts et Metiers Meknes | Behja H.,French Institute for Research in Computer Science and Automation | Ouhbi B.,Ecole Nationale Superieure dArts et Metiers Meknes | And 3 more authors.
International Conference on Next Generation Networks and Services, NGNS | Year: 2012

A data mining project is usually held by several actors (domain experts, data analysts, KDD experts ), each with a different viewpoint. In this paper we propose to enhance coordination and knowledge sharing between actors of a multi-view KDD analysis through a goal driven modeling of interactions between viewpoints. After a brief review of our approach of viewpoint in KDD, we will first develop a Goal Model that allows identification and representation of business objectives during the business understanding step of KDD process. Then, based on this goal model, we define a set of relations between viewpoints of a multi-view analysis; namely equivalence, inclusion, conflict and requirement. © 2012 IEEE.

Rimale Z.,Faculte des science Ben MSik | Benlahmar E.H.,Faculte des science Ben MSik | Tragha A.,Faculte des science Ben MSik | El Guemmat K.,Faculte des science Ben MSik
International Journal of Interactive Mobile Technologies | Year: 2016

with the continued growth of wireless technology and the development of mobile computing, mobile learning (m-learning) has become one of the most important ways of learning. However, the traditional way of m-learning has a lot of limitations and disadvantages. For some time the Mobile Cloud Computing (MCC) is an adoptable technology for most organizations with dynamic scalability and utilization of virtualized resources as a service over the Internet. MCC is growing rapidly, with applications in almost all areas, including education. Today, there are several researches confirming that MCC is a good way to overcome the disadvantages and limitations associated with the traditional way of m-Learning. This article is an attempt to clarify the definition and benefits of m-learning and MCC while presenting their existing work.

Abdelbaki I.,Faculte des science Ben MSik | Benlahmar E.H.,Faculte des science Ben MSik | Labriji E.,Faculte des science Ben MSik
International Conference on Next Generation Networks and Services, NGNS | Year: 2012

Searching for information on the Internet is not only an essential way to get information, but also a strategic tool to obtain a wide variety of information. Unfortunately, Web is so huge and so unstructured that the collection of specific, fair and useful information becomes a daunting ant time-wasting task. To define information research tool (metasearch engine) which has the aim to combine several sources of information, the main interest should be brought to the fusion step of results from search engines. © 2012 IEEE.

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