BACKGROUND Laparoscopic cholecystectomy has traditionally been performed with four incisions to insert four trocars, in a simple, efficient and safe way. AIM To describe a simplified technique of laparoscopic cholecystectomy with two incisions, using basic conventional instrumental. TECHNIQUE In one incision in the umbilicus are applied two trocars and in epigastrium one more. The use of tw...

BACKGROUND It has been pointed out that in the wake of a virulent flu strain, patients with survivable illness will die from lack of resources unless more ventilators are made available. Numerous disaster-type ventilators are available, but few evaluations have been performed. OBJECTIVE To compare simple, lightweight, and handy ventilators that could be used in the initial care of patients wi...

The rational use of chemicals requires that their properties be compatible with the planned application. These are modified by interactions to which chemical substance is subjected, among particularly relevant those components lab atmosphere, collectively labelled air sensitivity. sensitivity remarkably amplified in presently common small- and semimicro-scale samples operations, due increased s...

introduction: to reduce occupational accidents and work-related diseases as well as improving satisfaction of working conditions, assessment to identify risks and control measures are necessary. the aim of this study, applying ergonomic assessment indices to assessed the job groups and ability of textile workers. materials and methods: this study was conducted on 194 men employed in the qaembaf...

Simulating the dynamics of rigid bodies plays an important role in virtual reality applications such as virtual assembly planning and ergonomy studies but also in the field of computer animation. In order to decrease the complexity of the object representations and to increase the accuracy of the simulation algorithms one goal is to deal with objects with curved surfaces directly instead of app...

Today, the success of data services used from small mobile devices, like digital phones or PDAs, appears very limited. Different reasons can be identified, which prevent the average customer from broadly using wireless data services. At first, the user has to deal with very uncomfortable devices in terms of UI ergonomy, and on the other hand, the costs for wireless data communication are extrem...

The first paper, "Field Test Evaluations and Optimizations of Speaker Independent Speech Recognition for Telephone Applications," by Gagnoulet and Sorin of CNET, was presented by Christel Sorin. This paper discussed various ways of improving system usability and performance by optimizing both the dialog ergonomy and the recognition technology within the constraints of low-cost real-time impleme...

In order to illustrate the launched percussion activities during Early Aurignacian, we have selected four of 15 sites appertaining this technocomplex in Bergerac region, Southwestern France. The occupation territory, very rich good quality flint nodules, some which display imposing morphologies and dimensions, shows a certain functional complementarity between different Aurignacian occupations,...

essentials of respiratory care, 4th edition. St. Louis:Mosby Elsevier; 2005:103. 13. L’Her E, Roy A. Bench tests of simple, handy ventilators for pandemics: performance, autonomy, and ergonomy. Respir Care 2011;56(6):751-760. 14. Lyazidi A, Thille AW, Carteaux G, Galia F, Brochard L, Richard JC. Bench test evaluation of volume delivered by modern ICU ventilators during volume-controlled ventila...

In today’s drafting areas the design of interior elements in line with ergonomical criteria holds great importance from physiological and psychological aspects. Especially chairs desks, used by students who spend most their times schools, should be designed criteria. this study, a survey study was carried out undergraduate Bartin University Landscape Architecture Department to determine demands...