Study of composed of insertion graphite hydride of sodium by electronic paramagnetic resonance (EPR)

From the electronic point of view, graphite is a semi metal, the density of the charge carriers is approximately 10-4 by carbon atom. Insertion in the graphite of made up donors of electrons, is accompanied by a strong increase in conductivity in the plan and along the axis c. Reaction of the sodium hydride with the graphite led to the formation of ternary hydrogenated compounds of different stages. The electronic paramagnetic resonance applied to these compounds indicates the conducting character of these species.From the electronic point of view, graphite is a semi metal, the density of the charge carriers is approximately 10-4 by carbon atom. Insertion in the graphite of made up donors of electrons, is accompanied by a strong increase in conductivity in the plan and along the axis c. Reaction of the sodium hydride with the graphite led to the formation of ternary hydrogenated compounds of different stages. The electronic paramagnetic resonance applied to these compounds indicates the conducting character of these species

THE USE OF NATURAL MATERIALS FOR THE TREATMENT OF LEACHATES OF THE AGADIR DUMP

Within the perspective of adopting effective solutions to the problems related to the burial of urban waste and its resulting harmful effects on both the environment and the human health, suitable actions should be taken to remedy the shortcomings of this somehow primitive method of waste disposal, namely those of the generated leachates. Because of their high pollutant load, leachates have to undergo a treatment of purification before being discharged into the environment.The focus of our study is to develop a simple technique to reduce the pollutant load of leachates in the technical burying center (TBC) of solid waste in Tamellast, Grand Agadir. This technique is based on the treatment of leachates through aeration followed by a percolation-infiltration on sand. The sand used is raw titaniferous sand (RTS) which is very abundant in the region of Agadir. Young leachate samples issued from fresh urban waste were collected at TBC, Tamellast. The physicochemical analyses of the young leachates show that their pH is very acidic, the values of conductivity are very important and greatly exceed the normal limit value specified for the discharges (2.7 mS / cm). The levels of biodegradable organic matter are important (the COD and BOD5 values are 17800 mg of O2 / L and 9100 mg of O2 / L, respectively). The aeration of leachate by injecting air has increased electrical conductivity due to the different chemical and biological reactions involved in the treatment. However, the values of COD and BOD5 have decreased. This decrease shows the significant effect of aeration on the reduction of polluting organic matter. The ratio BOD5 / COD is greater than 0.5 and shows that the treated leachate is of a very good biodegradability. After aeration, the young leachate was infiltrated by percolation on a sand column. The BOD5 value reached 280 mg of O2 / L (the BOD5 limit value of direct discharge = 300 mg of O2 / L) and the COD value is 540 mg of O2 / L (the limit value of direct release COD = 600 mg of O2 / L). The technique developed in this study led to high abatement rates (96.96% for COD and 97% for BOD5) in organic matter and lower COD and BOD5 values

Utilisation d'Agrobacterium tumefaciens et Agrobacterium rhizogenes comme vecteurs de clonage d'un gène dans la tomate et le tournesol

L'introduction d'un gène Pl provenant d'un. champignon Cladosporum fulvum,dans le génome de deux plantes supérieures, la tomate et le tournesol, a été réalisée en utilisant Agrobacterium tumefaciens et Agrobacterium rhizogenes comme vecteurs. Le gène Pl a été cloné dans le plasmide pBIN19 dérivé du plasmide pRK252. Le plasmide recombiné pBIN Pl a été d'abord introduit dans une souche d'Escherichia coli ED 8767 à partir de laquelle il a été transféré dansAgrobacterium par une conjugaison triparentale où le plasmide pB IN Pl a été mobilisé par un plasmide conjugatifpRK 20l3.Deux systèmes binaires ont été ainsi obtenus et utilisés dans la transformation génétique des tissus végétaux. La sélection des tissus de tomate et de tournesol transformés a été réalisé grâce à l'association du gène Pl avec un gène conférant la résistance à la kanamycine. La preuve moléculaire de cette transformation des tissus est obtenue par hybridation de leur ADN génomique avec une sonde marquée du gène P1.Use of Agrobacterium tumefaciens and Agrobacterium rhizogenes as cloning vectors in tomatoe and sunflowerGenetic transformation of tomatoe and sunflower tissues by a fungus gene called Pl originating from Cladosporium fulvum was attempted using Agrobcaterium tumefaciens or Agrobacterium rhizogenes as vectors. Pl was initially cloned in the plasmid pBIN 19 harboured by E.coli ED 8767 leading to p BIN Pl plasmid, introduced either in A. tumefaciens or A. rhizogenes using a triparental mating approach. The plasmid pB IN Pl was mobilized by the plasmid p RK20l3. Two binary systems were thus constructed and used for the transformation of the plant tissues. Transformed tissues from tomatoe and sunflower were selected on their ability to grow on medium containing kanamycin. The molecular proof of the transformation was obtained by hybridizing genomic DNA from tomatoe or sunflower tissues with a complementary labeled DNA fragement of Pl

Utilisation d'Agrobacterium tumefaciens et Agrobacterium rhizogenes comme vecteurs de clonage d'un gène dans la tomate et le tournesol

L'introduction d'un gène Pl provenant d'un. champignon Cladosporum fulvum,dans le génome de deux plantes supérieures, la tomate et le tournesol, a été réalisée en utilisant Agrobacterium tumefaciens et Agrobacterium rhizogenes comme vecteurs. Le gène Pl a été cloné dans le plasmide pBIN19 dérivé du plasmide pRK252. Le plasmide recombiné pBIN Pl a été d'abord introduit dans une souche d'Escherichia coli ED 8767 à partir de laquelle il a été transféré dansAgrobacterium par une conjugaison triparentale où le plasmide pB IN Pl a été mobilisé par un plasmide conjugatifpRK 20l3.Deux systèmes binaires ont été ainsi obtenus et utilisés dans la transformation génétique des tissus végétaux. La sélection des tissus de tomate et de tournesol transformés a été réalisé grâce à l'association du gène Pl avec un gène conférant la résistance à la kanamycine. La preuve moléculaire de cette transformation des tissus est obtenue par hybridation de leur ADN génomique avec une sonde marquée du gène P1.Use of Agrobacterium tumefaciens and Agrobacterium rhizogenes as cloning vectors in tomatoe and sunflowerGenetic transformation of tomatoe and sunflower tissues by a fungus gene called Pl originating from Cladosporium fulvum was attempted using Agrobcaterium tumefaciens or Agrobacterium rhizogenes as vectors. Pl was initially cloned in the plasmid pBIN 19 harboured by E.coli ED 8767 leading to p BIN Pl plasmid, introduced either in A. tumefaciens or A. rhizogenes using a triparental mating approach. The plasmid pB IN Pl was mobilized by the plasmid p RK20l3. Two binary systems were thus constructed and used for the transformation of the plant tissues. Transformed tissues from tomatoe and sunflower were selected on their ability to grow on medium containing kanamycin. The molecular proof of the transformation was obtained by hybridizing genomic DNA from tomatoe or sunflower tissues with a complementary labeled DNA fragement of Pl

In Vitro Activities of Ertapenem and Imipenem against Clinical Extended Spectrum Beta-Lactamase-Producing Enterobacteriaceae Collected in Military Teaching Hospital Mohammed V of Rabat

Objective. To study the sensitivity level of extended spectrum beta-lactamase-producing Enterobacteriaceae to Carbapenems (Imipenem, Ertapenem) marketed in Morocco and discusses the place of Ertapenem in the treatment of extended spectrum-beta-lactamase-producing. Materials and Methods. A retrospective study of 110 extended spectrum beta-lactamase-producing Enterobacteriaceae. Isolates obtained from blood cultures, superficial and deep pus, and catheters were conducted. The minimum inhibitory concentrations of Imipenem and Ertapenem were done by the E-test. The modified Hodge test was conducted for resistant or intermediate strains. Results. 99.1% of isolates were susceptible to Imipenem. For Ertapenem, 4 were resistant and 4 intermediate. The modified Hodge test was positive for all 08 isolates. A minimum inhibitory concentration comparison of K. pneumoniae, E. cloacae, and E. coli for Imipenem has noted a significant difference between E. cloacae on one hand and E. coli, K. pneumoniae on the other hand (<0.01). No significant difference was noted for minimum inhibitory concentration of Ertapenem. Conclusion. Our results confirm in vitro effectiveness of Ertapenem against extended spectrum beta-lactamase-producing Enterobacteriaceae as reported elsewhere. However, the emergence of resistance to Carbapenems revealed by production of carbapenemases in this study confirmed a necessary bacteriological documented infection before using Ertapenem

EVALUATION OF PHYTOCHEMICAL COMPOUNDS IN Moringa oliefera Lam. EXTRACTS ON CYTOTOXICITY OF MCF-7 CELL LINE

Moringa olifera Lam. which called "Miracle tree" was an enormous usage of medical, nutritional and economic benefits so its leaves and roots extracts were vitro examined for phytochemicals contents, antioxidant, and cytotoxicity against MCF-7 cell line. Leaves and roots both extracts were estimate using 2,2-di phenyl-1-picryl hydrazyl (DPPH) radical scavenging assay and high performance liquid chromatography (HPLC) to determine phenolic and flavonoids compounds. The leaves  aqueous and ethyl acetate extracts  contained a significantly (p<0.05) more phenolic compounds than root extracts, while roots ethyl acetate extracts were significantly more active  in DPPH assay comparing with aqueous extracts . However, the leaves aqueous extract and roots ethyl extracts were contained high values flavonoids compound but in case of phenolic compounds the aqueous roots ex tract recorded the greatest highest number followed by the leaves ethyl acetate extract. The ethyl acetate extractions for leaves and roots have a high inhibition percentage against breast adenocarcinoma MCF-7 cell line comparing with aqueous extracts

A Multi-Level Optimization Algorithm and a Ship Design Application

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/97130/1/AIAA2012-5555.pd

Moving magnetoencephalography towards real-world applications with a wearable system

Imaging human brain function with techniques such as magnetoencephalography1 (MEG) typically requires a subject to perform tasks whilst their head remains still within a restrictive scanner. This artificial environment makes the technique inaccessible to many people, and limits the experimental questions that can be addressed. For example, it has been difficult to apply neuroimaging to investigation of the neural substrates of cognitive development in babies and children, or in adult studies that require unconstrained head movement (e.g. spatial navigation). Here, we develop a new type of MEG system that can be worn like a helmet, allowing free and natural movement during scanning. This is possible due to the integration of new quantum sensors2,3 that do not rely on superconducting technology, with a novel system for nulling background magnetic fields. We demonstrate human electrophysiological measurement at millisecond resolution whilst subjects make natural movements, including head nodding, stretching, drinking and playing a ball game. Results compare well to the current state-of-the-art, even when subjects make large head movements. The system opens up new possibilities for scanning any subject or patient group, with myriad applications such as characterisation of the neurodevelopmental connectome, imaging subjects moving naturally in a virtual environment, and understanding the pathophysiology of movement disorders

Burden of musculoskeletal disorders in the Eastern Mediterranean Region, 1990–2013: findings from the Global Burden of Disease Study 2013

Moradi-Lakeh M, Forouzanfar MH, Vollset SE, et al. Burden of musculoskeletal disorders in the Eastern Mediterranean Region, 1990–2013: findings from the Global Burden of Disease Study 2013. Annals of the Rheumatic Diseases. 2017;76(8):annrheumdis-2016-210146