Archives-December 

Right atrial myxoma is a rare disease and its clinical presentation is not specific. The usual mode of revelation is heart failure. The differential diagnosis of myxoma can be a thrombus, especially in case of atrial fibrillation. Trans-thoracic echocardiography allows diagnosis. Treatment by surgical excision should be done quickly to avoid complications. We present a case of a 44-year-old woman who was admitted to intensive care unit for heart failure. The echocardiography and Computed tomography (CT) showed a right atrial mass mimicking atrial myxoma. She died a few days later.

Dexmedetomidine is an alpha 2-adrenoceptor agonist with sedative, anxiolytic and analgesic properties.1 This article reviews the use of dexmedetomidine in pediatric patients and its use in critical care. We will focus on the clinical experience of the drug in children and its role in sedation in Pediatric intensive care unit and for procedural sedation. 

The use of inhibitors for the control of corrosion of metals which are in contact with aggressive environment is an accepted practice. It is needless to point out the importance of cheap, safe inhibitors of corrosion. Plant extracts have become important as an environmentally acceptable, readily available and renewable source for wide range of inhibitors. The inhibition of the corrosion of copper in nitric acid solutions by senesio extract has been studied using chemical and electrochemical techniques. Inhibition was found to increase with increasing concentration of the senesio extract. Senesio extract is a rich source of ingredients which have very high inhibition efficiency. The adsorption of senesio extract on copper surface was found to obey Langmuir adsorption isotherm. The polarization data revealed that senesio extract acts as mixed type inhibitors. The surface morphology was analyzed.

A simple high performance liquid chromatographic (HPLC) method for the simultaneous determination of dorzolamide hydrochloride and timolol maleate in eye drops formulation is presented. The HPLC separation was undertaken on a Eurospher 100 C-18 25*4.6 (5µm) column using a mobile phase of acetonitrile, tetrahydrofuran (THF) and 1% phosphoric acid aqueous solution,(15:3:82 v/v). System suitability was assessed through measurement of factors affecting column efficiency i.e. peak symmetry, capacity factor and resolution. Analytes concentrations were calculated utilizing peak area and peak height. The linearity range (r value > 0.99) was 120-480 µg/ml and 360-1440 µg/ml for timolol maleate and dorzolamide hydrochloride respectively. The limit of detection and limit of quantification for timolol maleate were 5.95µg/ml and 18.03µg/ml. The corresponding values for dorzolamide hydrochloride were 25.18µg/ml and 76.31µg/ml.

Community development empower individuals in societies to cooperate, interrelate and take decision to participate in fixing their community challenges. Contemporarily, people mostly perceived development of a community on beautiful building, security on street, with basic infrastructure of good road network and electricity etc but ignored process of building strong relationship among people. Islam had established and described a practical social capital (bonding and bridging) within community which is not always conceded today as a sustainable tool in fostering community participation and development. This paper explore some examples from the Islamic traditions to discuss the ethical framework of Islamic social capital as a motivating mechanism in achieving sustainable community participation and development.

Pregnancy causes an altered immune response which predispose pregnant women to increased severity of infections. Management of septic shock requires prompt resuscitation with volume expansion, inotropic therapy and empiric antibiotic therapy. Toxic shock syndrome can be caused by Staphylococcus aureus or Clostridium sordellii. It may occur unexpectedly after an uncomplicated pregnancy and delivery. Management includes antibiotic therapy with penicillin and clindamycin and early surgical intervention. Immunoglobulins may be beneficial. We report the case of a 22 years-old primagravida who represents a septic shock during labor caused by staphylococcus aureus which the point of departure was a urinary tract infection.

This study offers a brief overview of the export and import of wood based panelin India. The statistical parameters such as descriptive analysis, trends, graph and regression analysis have been computed to understand the nature of wood based panels export and import with top 25 countries on the basis of five year assessment, which is accounts 87.7% (1997-1998 to 2001-2002), 89.5% (2002-2003 to 2006-2007) and grow to 91% (2007-2008 to 2011-2012). The result of regression analysis demonstrate high R20.86 in export and 0.97 in import with correlated GDP, FDI and PC-NDP. The wood based panel’s viz. veneers, plywood, fibre boards, particle boards have also been examined for their trends.

One major feature of ambidexterity literature is its focus on how organizational ambidexterity can be achieved for superior organizational outcomes. Extant literature by and large propose that organizational ambidexterity could be attained by adopting one of the two approaches i.e. structural or contextual. By doing so, studies see the organizational structure and organizational context as contradictory factors in achieving organizational ambidexterity, hence adopt a trade-off approach and vacillate the applicability of both structure and context simultaneously. Only few studies, if any, have looked into the organizational structure and organizational context in combination for organizational ambidexterity, leaving an integrated approach unexplored. This study, therefore, addresses such a prevailing gap and proposes that both structural and contextual approaches are complementary in attaining organizational ambidexterity. As a result, this study contributes to elucidating underlying misconceptions and extend the ambidexterity literature by presenting the structurally and contextually integrated approach towards organizational ambidexterity which will serve as a reference for future conceptual and empirical research.

A study was carried out to evaluate the plant architecture of 27 local cassava cultivars (Manihot esculenta Crantz) in the Bengamisa region. The aim was to find out which cultivars could be used as monocultures or in crop associations for better weed control. We used a randomized complete block design with 27 treatments (27 cultivars) repeated four times. These parameters were measured: height of first branch, number of branches and petiole length after three months' planting. The results obtained showed that the 27 cultivars gave three groups of cultivars in relation to the height of the first branching and the number of branches (early, medium and late cultivars). They also showed that there are early cultivars that can be used in monoculture for better weed control (Apolina, Adjele and Atua); medium cultivars that can be used for both cropping systems (pure or associated) and late cultivars, better indicated for crop association.

The conventional solar still is modified by thermal energy storage material (Fly ash particles) to absorb the maximum amount of solar energy during shiny hours to increase the evaporation rate. In this work, fly ash is used effectively to store the thermal energy and also support the still to minimize the heat loss through bottom and side wall of the solar still. The fly ash is effectively used in the solar still to maintain the greater temperature difference between the glass inner surface and water by absorbing the excess amount solar energy during shiny hours. So, evaporation rate increases in the solar still. The quantity of the fly ash in the basin will influence the productivity of the still and other parameters like water temperature‚ glass surface temperature and vapour temperature etc. In this work, the experimental work has been conducted for various quantity of water and various depth of fly ash to find the optimum quantity of water and depth of fly ash in the basin. Finally, the performance of the modified solar still is compared with the conventional solar still under the same climate conditions. The productivity of the modified still is improved by 71 %.