BACKGROUND This study critically reviews sigmoid colon resection for diverticulitis comparing open and laparoscopic techniques. METHODS We conducted a retrospective review of all open and laparoscopic cases of diverticulitis between 1992 and 2001. Data analyzed included the following: indications for operation, postoperative complications, and incidence of laparoscopic conversion to laparotom...

Background: The recent progress and achievements in the advanced, accurate, and rigorously evaluated algorithms has revolutionized different aspects of the predictive microbiology including bacterial growth.Objectives: In this study, attempts were made to develop a more accurate hybrid algorithm for predicting the bacterial growth curve which can also be ...

AIM To explore the clinical value of bone flap creation and the sinus protection in the approach of retrosigmoid keyhole craniotomy with the guidance of three-dimensional (3D) sliced computer tomography (CT) reconstruction of the skull transverse sinus and sigmoid sinus groove. MATERIAL AND METHODS The scalp tracings of the transverse sinus and sigmoid sinus groove of 108 posterior fossa lesi...

The distribution of regulatory peptides was studied in the separated mucosa, submucosa and muscularis externa taken at 10 sampling sites encompassing the whole human sigmoid colon (five sites), rectum (two sites), and anal canal (three sites). Consistently high concentrations of VIP were measured in the muscle layer at most sites (proximal sigmoid: 286 (16) pmol/g, upper rectum: 269 (17), a mod...

The Coronavirus pandemic has been one of the most complex public health problems, in its magnitude, up to present moment human history. One possibility guide policies combat this disease is proposition predictive models regarding dissemination SARS-CoV-2. This article aims some methods, non-linear fits and computational used estimate propagation countries such as Italy Brazil. We highlight a So...

In this study, alternative ideas of energy were evaluated for five different age groups. Research participants included primary school, middle and high school students, students the department education, active teachers in education. The same questionnaire was used all groups, indicating that age-related differences exist between answers. sigmoid curve, which represents learning, is obtained by...

resection is the most common treatment choice for sigmoid volvulus, a common complication in our region. a new minimally invasive technique for sigmoid resection with local anesthesia was done in this study. this method is invented to avoid general on regional anesthesia in high-risk patients. nineteen patients were evaluated and then 14 were enrolled in this study. sigmoidectomy with a left lo...

Special attention must be paid to an efficient approximation of the sigmoid function in implementing FPGA-based reprogrammable hardware-based artificial neural networks. Four previously published piecewise linear and one piecewise second-order approximation of the sigmoid function are compared with SIG-sigmoid, a purely combinational approximation. The approximations are compared in terms of sp...

The interaction of gastrin and secretin, in the regulation of human lower esophageal sphincter competence, was studied in 54 normal subjects. A dose-response curve, for the lower esophageal sphincter, was constructed from the rapid intravenous injections of synthetic gastrin I (amino acid sequence 2-17). This curve was sigmoid shaped and showed a peak response that was 460.0 +/-24.0% (mean +/-2...