All Articles

Investigation of Edge-Selectively Nitrogen-Doped Metal Free Graphene for Oxygen Reduction Reaction

Abstract:

In order to distinguish the roles of four types of nitrogen species in oxygen reduction reaction, the ketoamine condensation reactions between the ketone group of graphene oxide and amidogen of aniline and o-phenylenediamine were employed to generate –C=N- bond at the edge of graphene nanoplatelets, and then nitrogen-doped graphene nanoplatelets with pyrrolic N, pyridinic N and pyridinic N+-O- rather than graphitic nitrogen were obtained by post thermal treatments. The resulting catalysts were characterized by X-ray diffraction analysis, X-ray photoelectron spectroscopy and electrochemical measurements. It is found that edge-selectively nitrogen-doped graphene nanopaltelets with nitrogen content of up to 4.28 atom% have been prepared. Nitrogen doping helps to improve activity of oxygen reduction reaction slightly, suggesting nitrogen doping at the edge of graphene does not contribute a lot to the enhancement of activity.

In Vitro Assessment of Antioxidant Enzymes, Phenolic Contents and Antioxidant Capacity of the Verdolaga (Portulacaceae)

Abstract:

In this study, the antioxidants and photosynthetic compounds of Verdolaga were examined. Compounds were extracted from distinctive segments of the verdolaga using various solvents such as methanol (40, 60, 80%), ethanol (40, 60, 80%), acetone (40, 60, 80%), and deionized water. The use of 80% methanol led to the highest extracted concentration of phenolic substances and flavonoids. The extracted products (Leaves, Stem strips, and Root strips) were evaluated for their radical scavenging capabilities with DPPH (IC₅₀= 22.26, 20.56, and 32.10), and ABTS (IC₅₀= 2.86, 3.70, and 5.24), reducing power (EC₅₀= 15.70, 16.39, and 21.69), and peroxide scavenging activity (1C₅₀= 1.717, 2.937, and 3.255), respectively. The extracted products were analyzed by a gas chromatography-mass spectrometer. Peroxidase, catalase, and polyphenol oxidase assays were completed for the crude extract of verdolaga’s ...

Measuring Availability and Prices of Locally Produced and Imported Medicines in Sudan

Abstract:

The objective of this study was to compare the availability and prices of locally produced and imported medicines, in particular after one year from medicines importation restriction and to answer the key questions, did local manufacturers able to coverage national needs of medicines and what is the patient prices for locally produced compared to imported medicines in different sectors and regions of Sudan.

A New Dietary Therapy for Chronic Renal Failure: Intestinal Dialysis Technology

Abstract:

A new dietary approach used to lower urea levels in chronic renal failure, and thus simulating dialysis has been recently described. This approach has been increasingly called intestinal or dietary dialysis. The aim of this paper is to describe the emerging evidence, principles, and concepts related to intestinal dialysis.

The Elliptical Aggregates – Idiopathic Granulomatous Mastitis

Abstract:

Idiopathic granulomatous mastitis was initially scripted in 1972 by Kessler and Wolloch and is cogitated as an infrequent, benign, chronic inflammatory disorder. It commonly implicates females of reproductive age group, especially women who have breast fed in the preceding five to six years. Idiopathic granulomatous mastitis is commonly discerned in Asia and Mediterranean region although true incidence is undetermined. Diverse ethnicities delineate a diverse disease prevalence. Elimination of adjunctive causes of granulomatous inflammation makes idiopathic granulomatous mastitis a diagnosis of exclusion. As per the natural history, idiopathic granulomatous mastitis is designated as a self limiting disorder 1.

Emotional Intelligence of Medical Post Graduate Students from Central India: A Cross Sectional Study

Abstract:

Emotionally intelligent doctors are better able to perceive the need of the patient. In today’s world, where patient satisfaction is one of the most important criteria for a successful medical practice, emotional intelligence of doctors plays a vital role.

Evolution of Anthropometry in Malnutrition

Abstract:

The present paper describes the significance of anthropometric measurements in detecting nutritional status of individuals, specially children. It highlights evolution of anthropometry, discusses importance of various measurements & their role in determining undernutrition & obesity. There is a need to have one measurement to detect obesity & undernutrition both. An ideal such measure is yet to be established.

Toward Better Medical Diagnosis: Tissue Optical Clearing 

Abstract:

Reaching efficient, safe and painless medical diagnosis procedure is a very valued goal for many research areas. Despite the great advantages of using optical imaging techniques in medical diagnosis including high safety and relative simplicity, it still suffers from relatively low resolution and penetration depth in the multiple scattering mediums such as biological tissues. Therefore, researchers began to devise ways to reduce the scattering properties of the tissue, hence increasing the imaging contrast. Optical clearing concept is introduced to do this job. This technique can reduce tissues scattering properties by using high refractive index chemicals, thus making the tissue transparent by equalizing the refractive index through that medium. In this paper, theory and techniques of optical clearing method are illustrated utilizing its benefits for deep imaging of different body tissues and organs.

Percutaneous Intervention for Quadrifurcation Lesion of the Left Main Coronary Artery  

Abstract:

To demonstrate that percutaneous coronary intervention (PCI) may in some cases be a safe option for patients with a high-risk surgical category, we report a complex clinical case of revascularization of multivessel coronary artery disease including left main coronary artery (LMCA) quadrifurcation.

Malaria and Typhoid Fever Coinfection in the Hospital University of Bobo-Dioulasso, Burkina Faso

Abstract:

Malaria and typhoid fever are two endemic infectious diseases in developing tropical countries including Burkina Faso. There are two distinct infectious diseases with many similar clinical signs. In each sanitary area, it is important to describe the "typhomalaria" epidemiology to elaborate adequate diagnosis algorithm and efficient treatment protocol. A cross-sectional study was carried out from July to October 2014 in the lab department of University Hospital Souro SANOU, Bobo-Dioulasso. All microscopy positive malaria during the study period was included. Serodiagnosis of Widal and Felix was performed systematically in all Plasmodium spmalaria cases. Titers of antibodies anti-agglutinin O equal or higher than 1/400 and/or 1/800 for anti-agglutinin H antibodies were considered positive for Salmonella sp. A total of 283 malaria cases were included in this study, majority falciparum malaria. In this malaria cases,...