BACKGROUND Perforated peptic ulcers (PPU) present as serious surgical emergencies that carry high mortality and morbidity. Foreigners with PPU are also managed in our hospital setting. Their inclusion significantly alters the trend and pattern of PPU seen in Malaysia. AIM To compare per-operative and post-operative features and outcomes of perforated peptic ulcers between Malaysians and forei...

Free vibration characteristics of thin perforated shells revolution vary depending not only on the dimensionless thickness shell but also perforation structure. All holes are assumed to be free, that is, without any kinematical constraints. For a given configuration there exists critical value below which homogenisation fails, since modes do have corresponding counterparts in non-perforated ref...

background: delay in diagnosis and treatment of perforated appendicitis may cause life-threatening complications. the aim of this study was to determine and compare pre-operative total and direct bilirubin levels in cases of simple and perforated acute appendicitis in order to improve the clinical decision making.   methods: this prospective observational study included eighty patients who unde...

  Background: Delay in diagnosis and treatment of perforated appendicitis may cause life-threatening complications. The aim of this study was to determine and compare pre-operative total and direct bilirubin levels in cases of simple and perforated acute appendicitis in order to improve the clinical decision making.   Methods: This prospective observational study included eighty patients who ...

The article deals with the theoretical description and experimental study of hydrodynamic heat transfer properties regarding operation multistage gravitational devices fluidized bed inclined perforated shelves. peculiarities work implementation field shelf units are described. A model to define solubilizer’s velocity above perforation holes, in above-shelf space device outloading gap, as well r...

We study numerically the Turing pattern in three dimensions in a FitzHugh-Nagumo-type reaction-diffusion system. We have found that interconnected periodic domain structures such as a gyroid, Fddd, and perforated lamellar structures appear in three dimensions, which never exist in lower dimensions. The stability analysis of these structures is also performed by means of a mode expansion.

watercress is a leafy vegetable of the family brassicaceae that grows in and around water, it has a short shelf life (approximately seven days) and it is consumed raw or steamed. the objective of this work was to study the effect of packaging film and different storage temperature on the postharvest quality of watercress minimally processed. treatments were: packed with plain film (pd961ez, 31m...

Introduction: Micro-perforated absorbents are one of the structures that are widely used nowadays. The sound absorption mechanism is performed by viscous energy losses in the cavities on the plate. In this study, the acoustic properties of non-flat perforated panels in oblique angle was investigated in numerical method. Material and Methods: This paper examined the effect of the surface shape ...

Micro-perforated absorber is a newly developed sound absorber, and it has a number of attractive features: • Unlike conventional perforated absorbers, micro-perforated absorber can be made from transparent materials like plastic glass. • Unlike commonly used fibrous absorptive materials, micro-perforated absorber is fibrous-free and thus, there is no health concern. • Micro-perforated membranes...

nowadays cmm machines are widely used in surface measurement and inspection. as inspection results from cmm machine are obtained by the means of measuring surfaces with direct contact, they are more precise than non-contact method (like optical measurement). however, cmm machines give more reliable and accurate results rather than non-contact methods but also these results come with error when ...