Dynamical system approach of non-minimal coupling in AdS/CFT cosmology

We study the dynamical system approach of non minimally coupled scalar field to induced gravity on the brane in the framework of the AdS/CFT correspondence. In this context, we derive the modified Friedmann equation and the equation of motion. The dynamics of this model are studied by rewriting the cosmological field equations in the form of a system of autonomous differential equations. In particular, the analysis is considered by investigating an exponential potential and a monomial form of the non minimal coupling function. We show that, for sufficient conditions, a past de Sitter attractor solution is obtained in the case of a minimal coupling, meanwhile a future de Sitter attractor solutions is obtained for a conformal coupling and for a non minimal coupling.Comment: 14 pages, 18 figures, revised version, new reference

Ileocecal resection for massive rectal bleeding due to Yersinia enterocolitica: a case report and review of the literature

INTRODUCTION: Massive gastrointestinal bleeding is an emergency that can sometimes require immediate surgery. We report the first case, to the best of our knowledge, of massive rectal bleeding due to Yersinia enterocolitica, requiring ileocecal resection. CASE PRESENTATION: A 41-year-old North African woman was admitted to our emergency department for massive rectal bleeding. She had a history of an iron deficiency anemia of unknown cause, and diarrhea 2 months before the admission. On admission to our emergency unit, she was in a state of hemodynamic collapse. An examination showed discolored conjunctivas, massive rectal bleeding with clots and no abdominal pain. The first medical treatment included the use of noradrenaline. An upper gastrointestinal endoscopy was performed and did not show any lesions. Computed tomography of her abdomen showed significant and hypervascular wall thickening of her terminal ileum suggestive of a tumor. Because her massive rectal bleeding worsened and her collapse persisted, an exploratory laparotomy and ileocecal resection were immediately performed on the patient. Histopathological analysis showed enteritis caused by Yersinia enterocolitica. Her outcome was favorable. CONCLUSION: Enteritis due to Yersinia enterocolitica can take a pseudotumoral form and mislead the diagnosis of gastrointestinal bleeding

Under-age Migrants in Temporary Absence of Supportive Adults

This article begins by setting a frame for understanding the violent effect that the temporary absence of adult support in a host country can have on young a person’s mental health. This is based on the author’s understanding of the Moroccan social background. In the body of the article it includes a complex discussion based on suggesting that the following components are required: 1) Families need to acquire tools to exercise their economic, social and cultural rights and to finally ensure their inclusion in the community, 2) A new form of fatherhood that goes beyond the traditional boundaries between maternal - paternal competences and skills, 3) Children’s needs and rights 4) What happens in disadvantaged families. This discussion suggests that these four basic pillars are necessary to ensure support for migrant minors both for their initial trauma and for their forced exile trauma. Finally I am initially proposing a re-conceptualisation of human beings and their difficulties so that their social, historical and economic context are taken into account, and our therapeutic interventions are rebuilt by reconciling various theories to make them more effective

Net Change:Harvesting Fog for Resilience in Southwest Morocco

Dar Si Hmad for Development, Education and Culture (DSH) runs one of the world’s largest fog collection systems. After a decade-long experimental phase, the project was officially inaugurated in 2015 and now pipes potable running water into the homes of five rural villages in the Anti-Atlas Mountains of Southwest Morocco. Incorporating from its outset user-centric planning and embracing the interrelation between justice, livelihoods, and sustainability, the fog project serves as a case study for the potential of holistic development

Higgs inflation model with non-minimal coupling in hybrid Palatini approach

The inflation model with non-minimal coupling scalar field in the context of the hybrid metric Palatini is studied in this paper. We derive the Einstein's field equations, the equations of motion of the scalar field. Furthermore,the background and the perturbative parameters are obtained by means of Friedmann equation in the slow roll regime. The analysis of cosmological perturbations allowed us to obtain the main inflationary parameters such as the scalar spectral index $n_s$ and the tensor to scalar ratio $r$. In this perspective, as an application of our analysis, we consider the Higgs field with quartic potential which plays the inflaton role, and we show that the predictions of Higgs hybrid inflation are in good agreement with recent observational data \cite{Akrami:2018odb}.Comment: 9 pages, 4 figure

Evidence for surface uplift of the Atlas Mountains and the surrounding peripheral plateaux: Combining apatite fission-track results and geomorphic indicators in the Western Moroccan Meseta (coastal Variscan Paleozoic basement)

This work represents an initial attempt to link the evolution of the topography in relation to the general tectonic framework of western Morocco. For this purpose, in a section of the Western Moroccan Meseta different tools are combined in order to attain the general objective. Apatite fission-track (AFT) data of granitic rocks of the Rabat–Khenifra area give ages around 200 Ma with track length distributions which are compatible with the thermal models already established for the area. An inverse correlation between AFT ages and elevation is observed which is compatible with previous models indicating northward tilting of the whole Western Moroccan Meseta which is younger than 20–25 Ma. In order to test this possibility a detailed analysis of the topography at different scales in the Western Moroccan Meseta has been performed. Results indicate that two open folds with different amplitudes are recognized and that the one with wider wavelength could correspond to a lithospheric fold as previously stated by other authors on the basis of independent geological arguments. The northward tilting proposed based on the AFT data agrees with the results obtained in the analysis of the topography which reinforces the presence of a very open fold with a wavelength of 200–300 km in the north-western limb of the Western Moroccan Meseta

Optimal tilt angles for solar collectors facing south at Fez city (Morocco)

The main objective of this paper is to determine the optimal tilt angles for south-facing solar collectors at Fez city in Morocco. This is this would allow collectors to receive the maximum of the incident solar energy. Thirteen models were used to calculate the global solar radiation reaching an inclined surface facing south. To determine the optimal tilt angle we varied the inclination angle from -20° to 90° by a step of 5°. The performances of each model are evaluated by comparing the calculated and measured global solar radiation on a surface facing south and tilted by 34°. Results of the best found model show that the optimum tilted angle is varying between 62° (December) and -6° (June). Also, the yearly-average optimal tilt angle is found to be 32° for Fez. Keywords: Optimum tilt angle; global solar radiation; diffuse solar radiation; Fez (Morocco)

IMPROVEMENT OF BAND-WIDTH PERFORMANCE OF HAIPRPIN BAND-PASS FILTER USING DEFECTED GROUND STRUCTURES

In this paper, a novel technique for improving the return loss of three poles hairpin band-pass filter incorporating defected ground structure is presented. As a result, the structure is simple, wideband with compact size. The expected result of a BPF with DGS is to have a compact band-pass filter with significantly improvement in return loss. The filter performances are exhibits |S21| more than -0.5 dB, |S11| less than -30dB, and center frequency of proposed filter is around 4.2GHz with operating bandwidth of 35%

Assessment and characterization of the physicochemical parameters of Moroccan leachate during the confinement period (coronavirus).

This work was carried out to respond to a major environmental issue which is water pollution and its repercussions on receiving environments, in particular the problem of leachate in the city of Fez-Morocco. The leachates generated by many economically relevant industrial activities contain recalcitrant organic compounds that remain unchanged at the biological stage of the treatment plant, which could make it difficult to comply with the discharge standard limits currently in force. During this work, we evaluated the elements present in the leachate as well as a physicochemical characterization study such as the chemical oxygen demand (COD), the biochemical oxygen demand over 5 days (BOD5), the pH, the electrical conductivity, the total phosphorus, the ammonium, suspended matter, and heavy metals, before and during the period of coronavirus containment.