1. Using the loss of turgidity of the cells as a criterion it is found that the toxicity curve of copper chloride with Nitella is sigmoid. An empirical equation can be constructed which will approximately fit the curve. 2. When the concentration of the copper chloride is varied the toxic effect varies as a constant, fractional, power of the concentration. This relation holds when the concentrat...

The objective of this study was to evaluate the growth curve 525 monthly body weight data 19 males (n=313) and 8 females (n=212) swamp buffaloes (Bubalus b. carabanensis), from birth slaughter age (25 months). nonlinear models used were: logistic, Gompertz, Von Bertalanffy Brody. parameters were estimated by NLIN procedure, criteria adjustment given Akaike’s information criterion (AIC), Bayesia...

OBJECTIVES To show that mechanical compression of sigmoid sinus is effective for treatment of pulsatile tinnitus caused by sigmoid sinus enlargement, and to evaluate the relationship between the compression degree of sigmoid sinus and the tinnitus symptom relief using magnetic resonance angiography. METHODS Medical records of twenty-four patients who were diagnosed with venous tinnitus caused...

lipomas of the gasterointestinal tract are relatively uncommon in clinical practice. most cases are asymptomatic with small tumor size and do not need any special treatment but the large ones are known to cause symptoms such as abdominal pain, obstruction, intussusceptions, and bleeding. the majority (90%) of these lesions are submucosal with predominantly right sided with a slight preponderanc...

Background: Sigmoid Volvulus is the most common form of Volvulus of the gastrointestinal tract and in Uganda; this condition is one of the top causes of intestinal obstruction. It is associated with a pre-existing redundant sigmoid colon which has a narrow attachment of the sigmoid mesentery to the posterior abdominal wall. The objectives of this study was to establish the demographic, dietary ...

Acute sigmoid volvulus is typically caused by an excessively mobile and redundant segment of colon with a stretched mesenteric pedicle. When this segment twists on its pedicle, the result can be obstruction, ischemia and perforation. A healthy, 18-year-old Caucasian woman presented to the emergency department complaining of cramping abdominal pain, distention, constipation and obstipation for t...

BACKGROUND The feasibility of laparoscopic sigmoid colectomy for diverticular disease has now been well established. We report herein our experience with laparoscopic sigmoid colectomy in 100 patients who underwent laparoscopic colectomy for chronic diverticular disease. METHODS A retrospective review was performed of a 7-year period from January 1995 to June 2002. Chronic diverticular diseas...

We study the Brownian motion of a charged colloid, confined between two walls, for small separation colloid and walls. The system is embedded in an ionic solution. combined effect electrostatic repulsion reduced diffusion due to hydrodynamic forces results specific direction perpendicular confining apparent coefficient at short times as well characteristic time are shown follow sigmoid curve fu...

The BET equation is commonly used to describe type II sigmoid isotherms of water contaminants. However, there are some that do not agree with the equation. In this paper, three modified equations (Aguerre–Suarez–Viollaz, Pantuso–Tolaba–Aguerre, and Aranovich–Donohue) evaluated against published isotherm data dysprosium, reactive blue 5G, naphthenic acid. cases studied, shown outperform original...