1. A method has been outlined by which the enzymes of hemolytic streptococcus may be extracted with comparative ease. 2. The peptolytic enzyme is active between pH 4.4 and 8.7 with an optimum action at pH 7.2. It is destroyed in neutral phosphate solution at a temperature of 57 degrees C. continued for 10 minutes and at pH 5.0 deteriorates slowly at 37 degrees C. Concentration experiments with ...

BACKGROUND Bicarbonate, as an adjunct increasing the non-ionized form of local anesthetics, can reduce latency and prolong duration of regional nerve block. Warming of local anesthetics decreases pKa and also increases the non-ionized form of local anesthetics. We warmed ropivacaine to body temperature (37℃) and evaluated the sensory block onset time, motor block onset time and analgesic durati...

News materials are reports on events occurring in a given time and location. Looking at the influence of individual event, an event that has news reported worldwide is strategically more important than one that is only covered by local news agencies. In fact, news coverage of an event can accurately determine the event’s importance and potential impact on the society. In this paper, we present ...

Toxoplasmosis is caused by intracellular protozoan parasite, Toxoplasma gondii (Nicolle et Manceaux, 1908). Cats and other felids are the definitive hosts. It could be transmitted to man and animals by consumption of infected undercooked meat and contaminated food items including drinking water. Results of toxoplasmosis epidemiological surveys in animals and humans in South-West, North-West, No...

This describes a simple reliable and reproducible method for detecting B.lactamase production in micro-organisms. It involves impregnating starch paper in a solution of penicillin and placing two or three colonies of organisms to be tested, incubated for 30 minutes and flooded with iodine. The test is completed in 30 minutes which is helpful in the management of a patient (JPMA 37 : 1 70, 1987).

The methods employed in the titrations of antigen and serum are essentially those developed by WADSWORTH at al(16) in their studies on tuberculous sera. All reactions were evaluated in terms of the amount of complement required for 50-per-cent hemolysis under the conditions of the test; the preliminary incubation for fixation is 90 minutes in a 37°C water-bath and 15 minutes is allowed for hemo...

32 Kanem Journal of Medical Sciences 2010;4(2): 32 37 PERCEPTIONS OF SEXUAL BEHAVIOR AND KNOWLEDGE ON SEXUALLY TRANSMITTED INFECTIONS AMONG THE UNDERGRADUATE STUDENTS OF A UNIVERSITY IN NORTH WESTERN NIGERIA ORIGINAL ARTICLE

.................................................... 8 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9 METHODS ...................................................... 10 Tennant method ............................................. 10 Modified Tennant method ..................................... 11 Single Cross-Section method ...........