Archives-June...  

In the present work, the building waste material Red Kotta was treated with sulphuric acid and formaldehyde and used as an adsorbent for the removal of Methylene red from aqueous solution. The adsorption characteristics of Methylene red dye on untreated and treated Red Kotta powder was evaluated as a function of pH, adsorbent dose, initial concentration of adsorbate, contact time and temperature. The effective adsorption was found to be in pH range 2 to7, adsorbent dose 1gm to 5 gm, initial concentration (100ppm to 500ppm) and temperature range (283K to 313K). The results show that Red Kotta powder holds a great potential in removal of Methylene red dye from industrial wastewater.

Wavelet transform or wavelet analysis is a recently developed mathematical tool in applied mathematics. In this paper, A survey on the use of the Haar wavelet method to solve linear and nonlinear integral equations (Volterra, Fredholm, integro-differential equations) is presented. Also, the investigation of Haar wavelet method for solving singular integral equations is presented. Review shows that the Haar wavelet method is efficient and powerful in solving wide class of linear and nonlinear integral equations.

The purpose of regression testing is to ensure that bug fixes and new functionality introduced in a new version of a software do not adversely affect the correct functionality inherited from the previous version. Regression testing is an expensive and frequently executed maintenance process used to revalidate modified software. It is costly but crucial problem in software development. The paper try to do the survey of current research on regression testing and current practice in industry and also try to find out whether there are gaps between them.

This study examines the rhetorical survey structure analysis of George Orwell’s Animal Farm. In this study, definition and historical survey are specified. This study also aims to highlights the consolidation of the gains of the revolution together with the reverses suffered in the execution of the various programmes initiated by the ruling oligarchy.

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.