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Search Results: 1 - 10 of 319 matches for " Malick Ndiaye "
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Human Rights at Sea and the Law of the Sea  [PDF]
Tafsir Malick Ndiaye
Beijing Law Review (BLR) , 2019, DOI: 10.4236/blr.2019.102016
Abstract: We must note that it is through the principle of inter-State sharing that the law of the sea was instituted, making individual interests eventually laid to rest. That is to say, individuals are deprived of locus Standi because only on behalf of States can a matter be brought before the International Tribunal for the Law of the Sea. However, International Courts and Tribunal called to settle disputes under UNCLOS are bound by article 293 of the Convention under which the law applicably consists of the said Convention and other rules of international law not incompatible with it.
The Geodynamic Context of the Cenozoic Volcanism of the Cap-Vert Peninsula (Senegal)  [PDF]
Abdoulaye Ndiaye, Papa Malick Ngom
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.512124
Abstract: The Cenozoic alkaline volcanism of the Senegalo-Mauritania sedimentary basin presents an episodic long-lasting volcanic activity from the Eocene-Oligocene boundary up to the Quaternary. Two volcanic episodes are usually distinguished on stratigraphical grounds: a Miocene one and a Quaternary one separated by a period of quiescence of several million years corresponding to the main phase of lateritic weathering. The Tertiary lavas are highly silica-undersaturated alkaline rocks ranging from nephelinites to basanites. They contain nepheline and fassaite-type clinopyroxene in their mineralogy. The Quaternary lavas are more evolved with Hy-normative in comparison to the Tertiary ones; they are composed of basanites and medium to coarser-grained dolerites. The distribution of the REE and other incompatible elements are typical of alkaline lavas with generally strong LREE enrichment without significant Eu anomaly. The Cenozoic Cap-Vert lavas have OIB (oceanic islands basalts)-affinities as shown by their relatively radiogenic Nd and unradiogenic Sr characters closed to the HIMU-OIB. This suggests a HIMU-type end member in the magma sources which is fairly comparable to those erupted in the Canaries and Cape Verde archipelagoes during the same period.
Urgent Proceedings before the International Courts and Tribunals  [PDF]
Tafsir Malick Ndiaye
Beijing Law Review (BLR) , 2019, DOI: 10.4236/blr.2019.104046
Abstract: The urgent proceedings of the International Tribunal for the Law of the Sea reflect the Tribunal multi-faceted jurisdiction contained in the Rules. These proceedings are expeditious and cost-effective. They last about two months instead of thirty months as in the procedure on the merits. These proceedings help States to face emergency issues at hand. It appeared determinant after the two cases, i.e. case N°26 concerning the Detention of three Ukrainian naval vessels in its order of 25 May 2019 and case N°27, The M/T “San Padre Pio” in its order of 6 July 2019, to make plane and clarify the legal regime of urgent proceedings specially with new challenges for the international community as a whole, such as the climate change, the Sea level rise and the Biodiversity Beyond National Jurisdiction (BBNJ).
Mechanical Behavior of Pillow Lavas in MakoSupergroup: Case of South Mako Hill  [PDF]
Déthié Sarr, Meissa Fall, Papa Malick Ngom, Mapathé Ndiaye
International Journal of Geosciences (IJG) , 2011, DOI: 10.4236/ijg.2011.24065
Abstract: This work shows the Kédougou-Kéniéba inlier (eastern Senegal) pillow lavas behavior from laboratory to field. Some uniaxial tests are carried out on five types of specimens of pillow lavas. These types of specimens are: macroscopicly healthy rock, fractured rock without filling, fractured rock filled with epidote, chlorite and calcite and rocks with tension crack filled with quartz. The Young moduli and the uniaxial compression strength are good for the healthy rock. The Young moduli fall slightly for facies with horizontal cracks while uniaxial compression strength (Rc) varies slightly. For filled fractured specimens, Rc and Young modulus (E) decrease remarkably. Decreases are most important for cracks filled with epidote, chlorite and calcite than with quartz. That is due to the differences of rigidity between these materials. Also, the slope stability of hillsides in this area depends on to these characteristics.
Sensitivity Analysis of the Penman-Monteith Reference Evapotranspiration to Climatic Variables: Case of Burkina Faso  [PDF]
Papa Malick Ndiaye, Ansoumana Bodian, Lamine Diop, Koffi Djaman
Journal of Water Resource and Protection (JWARP) , 2017, DOI: 10.4236/jwarp.2017.912087
Abstract: Sensitivity analysis is important in understanding the effect of each climatic input variable on the variation of the evapotranspiration which is a significant element for hydrological modelling, irrigation programs, and water resources management. This study investigates the responses of evapotranspiration to the variation of maximum and minimum temperature, solar radiation, wind speed and maximum and minimum relative humidity. Daily data from 1998 to 2012 of eight stations are used. For each climatic variable, a variation of 5% up to ±25% was performed in order to evaluate the sensitivity of the evapotranspiration to the input variables. Results show that evapotranspiration is more sensitive to the variation of solar radiation, maximal temperature and wind speed, respectively.
Maize Crop N Uptake from Organic Material of Gliricidia sepium Coinoculated with Rhizobium and Arbuscular Mycorrhizal Fungus in Sub-Saharian Africa Sandy Soil  [PDF]
Adama Diouf, Malick Ndiaye, Mame Arama Fall-Ndiaye, Tahir Abdoulaye Diop
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.83029
Abstract: The effect of green manure of gliricidia (Gliricidia sepium (Jacq.) Walp) leguminous plants applied for cereal maize cultivation and N uptake by cereal were investigated and analyzed in relation to influence of dual inoculation of gliricidia with microbial symbionts. Two pot experiments were conducted in greenhouse. The first trial was set up to enhance growth of gliricidia with exotic and indigenous rhizobial strains and arbuscular mycorrhizal fungus and the second to determine the effect of gliricidia organic material on maize growth. Direct 15N-labelling techniques were used to estimate N-fixed by gliricidia plant and N uptake of maize cereal crop from green manuring was calculated. Growth of gliricidia trees estimated by aboveground biomass production and N fixed were positively affected by dual inoculations. This study showed that shoot dry weight and N accumulation of maize cultivated under gliricidia green manure were influenced by its application and indirectly by microbial treatments. The N recovery by the maize accounted 17.32% to 26.52% of N applied as gliricidia organic material. Gliricidia green manure N accumulation and release, and afterward microbial inoculations were substantially determining on maize crop N uptake and growth in sandy soil of Sub-Saharian Africa.
Geomechanical Characterization of Sandstones Cliffs of Segou (Senegal, West Africa) in the Madina Kouta Basin  [PDF]
Déthié Sarr, Meissa Fall, Papa Malick Ngom, Mapathé Ndiaye, Cheikh H. Kane, Makhaly Ba
International Journal of Geosciences (IJG) , 2012, DOI: 10.4236/ijg.2012.31018
Abstract: This work presents the behavior of Segou sandstones in the laboratory and in the field conditions. Four types of sandstone are collected in the northern part of the Madina Kouta basin (eastern Senegal). These types of specimens are the white sandstones, the red sandstones, the purple sandstones and the sandstones with intercalation of pelites. Uniaxial tests are carried out on these specimens of sandstones. The Young Moduli (E) and the Uniaxial Compression Strengths (Rc) are higher for the white sandstone. Values of the mechanical parameters decrease slightly for red sandstones due to an increase of the amount of pelites in the composition of the rock. Decrease of mechanical parameters is more important for the purple facies due to an important network of fractures. The facies with weaker characteristics corresponds to the sandstones with intercalation of pelites. This is due to the soft nature of the pelites. The slope stability of the Cliff sides depends also on to these characteristics.
Pozzolanic Activity of Old Volcanic Tuffs of Mako Area (Senegal-Oriental, West African Craton): An Economic and Environmental Interest  [PDF]
Matar Ndiaye, Mahamadane Diène, Mouhamadou Bassir Diop, Papa Malick Ngom
International Journal of Geosciences (IJG) , 2019, DOI: 10.4236/ijg.2019.103014
Abstract: The volcanic tuffs of Senegal-Oriental in Mako area are produced during a calc-alkaline volcanism which occurs in this region and which is dated from about 2.3 - 1.95 Ga. Despite their altered appearance, the X-Ray diffractions show mineral paragenesis: Quartz-Kaolinite-Illite and an important amorphous phase. On the Ternary Keil-Rankin diagram for the CaO-SiO2-Al2O3 the volcanic tuffs of Mako area are situated between pozzolan and the fly ash. The difference between silica and lime is greater than 34% in these volcanic tuffs. In this study, they have been mixed with Portland cement to obtain pozzolanic cements respectively with 20%, 30%, 35% and 40% of addition of volcanic tuffs. The pozzolanic reactivity is highlighted by the compressive strength increase until 90 days of conservation in water. It supposes that the vitreous phase of the volcanic tuffs reacts with the free CaO (CaOf) of Portland cement to produce new hydrated minerals. This study has a positive economic and environmental impact. Because the time of grinding of pozzolanic cements is reduced. Also, the addition of volcanic tuffs reduces the production of clinker, then the CO2 emission.
Management of Multiple Endocrine Neoplasia Type 2A (MEN 2A): Diagnostic and Therapeutic Concerns with the First Documented Senegalese Family  [PDF]
Abdoulaye Leye, Ngone Diaba Diack, Michel Assane Ndour, Nafy Ndiaye, Yakham Mohamed Leye, Biram Codou Fall, Malick Ndiaye, Abdoul Karim Daher, Ahmed Tall Lemrabott, Boucar Diouf
Open Journal of Endocrine and Metabolic Diseases (OJEMD) , 2018, DOI: 10.4236/ojemd.2018.81004
Abstract: Introduction: Multiple endocrine neoplasia (MEN) type 2A is a multiglandular tumor condition inherited in an autosomal dominant manner. It is related to proto-oncogene RET mutation whose analysis is the best technique for family screening. It features in a variable way medullary thyroid cancer (MTC), primary hyperparathyroidism (HPT) and pheochromocytoma. The revealing manifestations of these tumors are often neglected for a long time and the screening should be systematic particularly in a known family context. Methods: After a family tree establishment of a MEN 2A index case, a family survey allowed to diagnose other cases in the family by means of biological, radiological and/or genetic examinations. Results: We report a family form of MEN 2A in a family of three households. In this family 13 people (index case included) were probed out of 34 members. The average age of our patients was 43.54. The sex ratio men/women was 0.85. The simultaneous diagnosis of a primary HPT and a MTC was carried out in our index case and constituted the circumstance of discovery of MEN 2A. The time limit of MEN 2A diagnosis on the other family members was on average 7.7 years. A MTC was recorded in 7 patients. It was asymptomatic in overall cases. A pheochromocytoma was present in only one patient. Primary HPT was found in four patients. Renal lithiasis with recurrent unilateral or bilateral nephritic colic attacks was the main manifestation. Besides the index case, 11 patients had a genetic testing. In 7 patients, a mutation on proto-oncogene RET located on the codon 634 was noted. A surgical care was carried out on 6 patients. We recorded three patients lost to follow-up. A patient died before surgery. In the index case, biological and radiological monitoring found a locoregional residual disease that indicated surgical revision and radiotherapy. Prophylactic thyroidectomy was not performed in any case driven by lack of compliance and/or low income. Conclusion: The discovery of a MEN 2A case imposes genetic survey allowing the screening of other cases in the family and the establishment of a preventive strategy.
Traumatic Floating Bone. About 11 Cases and a Literature Review  [PDF]
Amadou Ndiassé Kasse, Malick Diallo, Souleymane Diao, Jean Claude Sane, Abdoulaye Bousso, Abdou Razack Ndiaye, Mouhamadou Habib SY
Open Journal of Orthopedics (OJO) , 2017, DOI: 10.4236/ojo.2017.712040
Abstract: Introduction: Floating bone injury or bipolar dislocation is a concurrent dislocation at both ends of a long bone or a flat bone. It is an exceptional injury. We report 11 consecutives cases of floating bones. Objectives: The aim of the study is to analyze the frequency, the mechanism of injury and clinical forms of floating bones, and to present the results of their management. Material and Methods: A ten years ongoing retrospective study was held in four trauma departments. Eleven cases of floating bones were identified. The floating bones characteristics such as the injured bone, the patient age and sex, the mechanism of injury, the dislocations directions, the associated complications, the treatment and the outcome were studied. Results: Nine male and two female patients, with a mean age of 37 years [19 - 65 years range] presented a concurrent bipolar dislocation of one bone or a group of bones. They sustained a road traffic accident (n = 5), a workplace accident (n = 3), a fall from height (n = 2), and a sport accident (n = 1). The clavicle (n = 3) and the first metatarsal (n = 3) were the most frequently involved. The others floating bones were the radius-ulna complex (n = 1), the radius-lunatum complex (n = 1), the first metacarpal (n = 1), the first phalanx (n = 1) and the femur (n = 1). The floating bones ends displacement occurred in the sagittal plane (the forearm, the femur, the first phalanx and the first metatarsal) and in the horizontal plane (the clavicle, the first metatarsal and the first metacarpal). We defined direction displacements as bidirectional asymmetric (n = 10) or unidirectional symmetric (n = 1). Associated complications were fractures (wrist, hip, tarso-metatarsal joints) and wounds (fingers, metatarso-phalangeal joint). Dislocations were treated conservatively (n = 5) and surgically (n = 17) with excellent results (n = 13/16 joints). Three patients were lost of view. Conclusion: Our study described the characteristics of this exceptional injury. For any joint dislocation, we promote the systematic examination of the other end of the dislocated bone.
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