Search - chowdhury, mohammed...

SLAP lesions remain a rare entity of the painful pathology of the shoulder under the labrobicipital complex, of difficult diagnosis given the atypical clinical symptomatology often vague with tests of different reliability although directing towards a strong positive presumption. The advent of imaging by injection of contrast product (arthro scanner and especially arthro MRI) has allowed a better understanding of this type of lesion but there are still variants of this complex which are radiologically limited between what is normal or pathological. Arthroscopy has allowed an unequalled precision of diagnosis with the possibility of adequate therapeutic management and very satisfactory results. Through this clinical case of a young patient with a chronically painful shoulder, we draw attention to this type of pathology, which is rare but not negligible.

Soluble and conducting block copolymer (PANI-PEO) nanocomposite was prepared by oxidative polymerization of aniline in non acid media and in different weight percentages in the presence of ecologic catalyst layered called (Maghnite-H+) and reactive polymer stabilizer such as poly(ethylene oxide) (PEO2000, Mn = 2000).The morphology, structure, solubility and electrical properties of PANI-PEO copolymer nanocomposite was characterized by FTIR,Uv-vis,1H-NMR spectroscopy, dynamic scanning calorimetry (DSC), and thermogravimetric analysis (TGA).It was found that structue, solubility an conductivity of resulting PANI-PEO nanocomposite depended on the amount of catalyst, molecular weight and functionality of the reactive stabilizer (PEO) and molar ratio of monomers (PANI-PEO). The formation of the hydrogen bonding between PANI and PEO copolymer was predicted by the FT-IR spectra. DSC analysis showed only one (Tg=16°C) for the blend copolymer implying compatibility of the two components

This study was designed to investigate the quality of Victoria 1500 and 2000 capsules a herbal medication that contain ginseng (major components Rg1&Rb1), royal jelly (marker component is 10-hydroxydec-2-enoic acid (10-HDA)) and yohimbine. The study include determination of major components content, long term stability, determination of elements , studying the microbiological contamination, detection of pesticides residues and mycotoxins. The drugs were stored under different simulated climatic conditions. The reaction rate constant (K), the half-life (t1/2) and the activation energies were calculated for ginsenosides Rg1 &Rb1. The activation energies were found to be 10.99 and 10.2( k.cal.mol-1 ) for Rg1 &Rb1respectively. The % content of Rg1, Rb1 and 10-HDA of Victoria1500 &2000 capsules after six months storage were found at the lower specifications limit (80-120% of stated amount). For yohimbine were found within allowable limit(90-110%). Studies on the elemental composition confirmed absence of toxic heavy metals. The capsules were found to be free from Microbiological contamination and any pesticide residues. The mycotoxins content were found to be within the allowable limits(800-4300ng/kg). Victoria 1500&2000 capsules were found to comply with the given specifications up to six months storage, thereafter, the samples showed physical &chemical instability with a decrease in Rg1,Rb1 and 10-HDA contents but without effect on yohimbine content.

The aim of the study is to examine it is sometimes necessary to use transformation of variable for treating autocorrelation of regression or time series model. Different there are many methods have been used for this purpose. This paper uses the first difference method and the Cochrane-Orcutt method in autocorrelation of malaria data in Khartoum State, treated in out-patient clinics. The data collected from the Federal Ministry of Health, National Health Information Centre, and annual reports during (2001 – 2015). By calculating the estimates for each method and errors, the paper showed that the method of differences is better in the treatment of auto-correlation, and there are limits of negatives error, because reducing these errors from least square method.

Cyclotriphosphazenes are prominent inorganic N-heterocycles.They consist of six-membered ring structures of alternating phosphorus and nitrogen atoms. The tetravalent phosphorus atoms carry two exocyclic substituents, which can be widely varied enabling fine-tuning of the size and shape of the molecular periphery. This study involved the synthesis and characterization of hexa (diethanolamino) cyclotriphosphazene by an enveremently and friendly system catalyst consist of clay layered called Maghnite-H+ (Algerian MMT) and diethyl ether. The effect of different synthesis parameters such as amount of catalyst, effect of time, temperature and solvent are discussed.

The arthroscopic BANKART technique is part of the panel of surgical treatment of anterior shoulder instability, allowing reinsertion of the anterior-inferior labrum as well as the capsule at the level of the anterior glenoid rim. Its indication is based on a set of criteria gathered in the ISIS score, which must be less than or equal to 3 for an optimal result and a lower recurrence rate. Our initial experience has shown the success of this technique with a zero recurrence rate after an average follow-up of 26 months. The perspective remains to enlarge the series with a long follow-up for a better management.

The ligand, 2-methyl-1,3-oxazole-4-carbaldehyde thiosemicarbazone (HL) was synthesized by reacting equimolar amounts of thiosemicarbazide with the corresponding aldehyde. The synthesized ligand was reacted with Ni(II) and Co(II) chlorides in the 2:1 mole ratio of ligand: metal. These led to the isolation of two new complexes, namely [Ni(HL)2]Cl2 (1), [Co(L)2].1.3Cl (2), the ligand and its metal(II) complexes were characterized by elemental analysis, IR, 1H NMR, 13C NMR spectroscopic methods, UV-Vis spectrophotometry and X-ray diffraction. The X-ray structural studies of the ligand and their corresponding metal complexes 1, 2 revealed that: The free ligand exist in the thione form and remain as neutral tridentate with NNS donor atoms in the complex (1) but in the complex (2) the HL acted as uninegative tridentate ligand, beside Presence of uncoordinated chloride ions in the cavities of the crystal lattice of the complex (2). One of these chlorides is hydrogen bonded to a proton of the amine of the ligand. The coordination environment of Ni(II) and Co(II) metal complexes 1, 2, has a distorted octahedral structure. The oxazole N and S atoms in the two complexes are cis to each other whereas the azomethine N atoms are trans coordinated. The ligand and its metal complexes were tested for their in vitro biological activity against seven standard microorganisms: two Gram positive namely Bacillus subtilis and Micrococcus luteus, and one Gram negative bacteria Escherichia coli and four fungi: Saccharomyces cerevisiae (Baker’s yeast), Candida maltosa, Mucor spec., and Aspergillus niger, at a concentration 100µg/ml. The results showed that the ligand HL and its Ni(II) Co(II) complexes appear inhibition activity for Mucor spec. only.

The paper examines firstly a theoretical framework of the relationship between financial development and economic cycles’ volatility; and secondly it analyses empirically this relationship in ten newly industrialized countries by estimating a dynamic panel over the period 1988-2013. It tries to check the specific effect of some crucial macroeconomic financial variables on the stability of economic cycles as a decisive component of economic growth. The empirical results suggest that there is not enough evidence concerning the long-run relationship between financial development and its contribution in smoothing economic cycles or even avoiding economic downturns episodes. By contrast, according to the co-integration and unit root tests results in the in-sample countries, a long-run relationship can exists for a few selected countries. Furthermore, it can be assumed that because of the cross-sectional dependence, the hypothesis of no co-integration between financial development and economic cycles’ volatility is rejected for the whole panel, although it must be accepted for some countries.

The chemical composition of the essential oil from the leaves and the roots of Flabellaria paniculata Cav. (Malpighiaceae) were studied using GC and GC-MS. The leaves oil contains twenty-four compounds which constituted about 91.2% of the oil. This was dominated by sesquiterpenoids (69.9%). The roots oil contains fourteen compounds which constituted about 96.2% of the oil. The roots oil was also dominated by diterpenes (84.1%). The topical anti-inflammatory effects of the two oils were assayed as inhibition of the 12-O-tetradecanoylphorobol-13 acetate (TPA) induced ear edema in mice. The oils at 5.0 and 2.5 mg dose levels exhibited more effect than indomethacin (0.25 mg) in reducing edema. The results demonstrated the leaves oil of Flabellaria paniculata has an anti-inflammatory agent, supporting the use of this plant in folk medicine. Aside these, other compounds were reported along with the anti-inflammatory activity and these seemed to receive no mention in any previous literature known to us and hence novel.

A highly efficient and expedient protocol for the synthesis of hydrazones catalyzed by citric acid is investigated via reaction of hydrazine hydrate with different carbonyl compounds. The use of inexpensive, non-hazardous easily available citric acid as a catalyst for the synthesis hydrazones employing grinding technique is reported. The structures of the synthesized compounds are established on the basis of physical, chemical and spectral data.