5 Works

Efficient production of few-layer black phosphorus by liquid-phase exfoliation

Ghassane Tiouitchi, Mustapha Ait Ali, Abdelilah Benyoussef, Mohammed Hamedoun, Abdessadek Lachgar, Abdelkader Kara, Ahmed Ennaoui, Abdelfattah Mahmoud, Frederic Boschini, Hamid Oughaddou, Amine El Moutaouakil, Abdellah El Kenz & Omar Mounkachi
Phosphorene is a new 2D material that has recently attracted much attention owing to its fascinating electrical, optical, thermal, and chemical properties. Here, we report on high-quality exfoliation of black phosphorus nanosheets, with controllable size produced in large quantities by liquid phase exfoliation using N-methyl-2-pyrrolidone (NMP) as a solvent under ambient conditions. The as-synthesized few layers show a great potential for solar energy conversion based on the optical results shown in this work.

Large Amplitude Forced Vibrations of Restrained Beams Resting on Elastic Point Supports

Hatim FAKHREDDINE, Ahmed ADRI, Mohcine CHAJDI, Said RIFAI & Rhali BENAMAR
The present paper concerns the study of geometrically non-linear forced vibrations of beams resting on two different types of springs: rotational and translational. Assuming that the motion is harmonic, the displacement is extended as a series of spatial functions determined by solving the linear problem. Hamilton’s principle and spectral analysis are used to reduce the problem to a non-linear algebraic system solved using a previously developed approximate method. The effects of the nature of the...

Data from: Outcome of breast cancer in Moroccan young women correlated to clinic-pathological features, risk factors and treatment: a comparative study of 716 cases in a single institution

Meriem Slaoui, Fatima Zahra Mouh, Imane Ghanname, Rachid Razine, Mohammed El Mzibri & Mariam Amrani
Background: Breast cancer in young women is quite uncommon and shows more aggressive characteristics with major disparities between worldwide populations. Prognosis and outcome of breast cancer in young patients are widely studied, but still no consensus is available. Methods: We retrospectively included 716 cases of breast cancer women diagnosed in 2009 at the National Institute of Oncology of Rabat. Patients were divided into two groups according to their age: women aged ≤40 years (Group 1)...

Data from: Behavioural thermoregulation via microhabitat selection of winter sleeping areas in an endangered primate: Implications for habitat conservation

Liz A.D. Campbell, Patrick J. Tkaczynski, Mohamed Mouna, Abderrahim Derrou, Lahcen Oukannou, Bonaventura Majolo, Els Van Lavieren & Liz A. D. Campbell
Strategic microhabitat selection allows animals in seasonally cold environments to reduce homeostatic energy costs, particularly overnight when thermoregulatory demands are greatest. Suitable sleeping areas may therefore represent important resources for winter survival. Knowledge of microhabitat use and potential impacts of anthropogenic habitat modification can aid species conservation through development of targeted habitat management plans. Wild, endangered Barbary macaques (Macaca sylvanus) in logged cedar-oak forest were studied to investigate 1) the hypothesis that macaques select winter...

Data from: Detection and initial management of gestational diabetes through primary health care services in Morocco: an effectiveness-implementation trial

Bettina Utz, Bouchra Assarag, Tom Smekens, Hassan Ennassiri, Touria Lekhal, Nawal El Ansari, Bouchra Fakhir, Amina Barkat, Amina Essolbi & Vincent De Brouwere
Background: Gestational Diabetes Mellitus (GDM) testing and management in Morocco is associated with delays resulting in late commencement of treatment. To reduce delays and to increase access of women to GDM care, a country-adapted intervention targeting primary health care providers was designed to test the hypothesis that detection and initial management of GDM at the primary level of care improves newborn outcomes in terms of lower birthweights and less cases of macrosomia and impacts on...

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