نتایج جستجو برای: mask

تعداد نتایج: 22192  

Introduction: The aim of this study was to determine the accuracy of two different immobilization methods in patient positioning in cranial radiotherapy. The six-dimensional (6D) target localization accuracy of using a dedicated stereotactic mask was compared with that of a conventional head mask by the ExacTrac system. Material and Methods: ...

ژورنال: بیهوشی و درد 2019

 Aims and background: Nausea and vomiting is one of the most common and most annoying post-operative complications, therefore, the aim of this study was to investigate the effect of oxygen therapy with Venturi mask and CPAP mask on nausea and vomiting after cesarean section. Materials and methods: This quasi-experimental study was performed on two groups (control-intervention) on 90 candidates ...

ژورنال: مجله طب نظامی 2020

Background and Aim: The use of a mask is an effective measure to reduce the transmission of Covid-19. Today, due to the lack of N95 masks and medical masks with good performance, felt masks are widely used due to their ease of manufacture and low cost. The aim of this study was to determine the effectiveness of 3-layer felt masks containing polypropylene membranes in filtering particle size in ...

ژورنال: دانشور پزشکی 2017
حیدری, مجید, شفائی, یوسف, شهباززادگان, بیتا,

Background and objective: Wound infection usually appears on days fifth to eighth after a surgery. The most important clinical signs are: redness, increased pain, and swelling or warmth around infected area. An effective way to reduce an infection is use of surgical mask for reduction of bacterial drips splashing from one's mouth or nose. This study was done to compare the effect of masks and s...

Journal: :journal of research in medical sciences 0
ali shahriari department of anesthesia, zahedan university of medical sciences, zahedan, iran.

the laryngeal mask airway (lma) is an important addition to the anesthetist's equipments. however, its usage may involve some complications. we have encountered an unusual and potentially serious complication using this equipment. a 45-year old man underwent cataract surgery under general anesthesia. after the induction of anesthesia, a size 4 of the reusable classic lma was inserted without an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - پژوهشکده برق و کامپیوتر 1391

این پایان نامه به دنبال ارائه روش هایی برای بهبودی سیگنال گفتار آلوده به نویز با رویکرد ارتقاء قابلیت فهم گفتار است. ماسک دودویی ایده ال (ibm) که هدف اصلی بحث آنالیز محاسباتی ترکیب شنیداری معرفی شده است، به عنوان ابزاری برای افزایش قابلیت فهم سیگنال گفتار مورد توجه قرار گرفته است. این ماسک در کنار توانایی که در افزایش قابلیت فهم دارد، مشکلاتی نیز همراه با آن وجود دارد. با توجه به تعریف ibm، که ...

Journal: :دراسات الادب المعاصر 0
بهرام أمانی جاکلی رقیة سفری

the direct voice of the poet hides from the beginning of the poem to its end, or the name that the poet speaks through which about himself detached from his or her substantiality, or he is just a historic character..., behind that the poet hides himself to interpret the situation that he wants or to criticize the vices of modern age through it, or to speak of it for some of his concerns and wor...

Journal: :journal of medical signals and sensors 0
mina jamshidia hossein rabbani zahra amini raheleh kafieh abbas ommani vasudevan lakshminarayanand

localizing the optic disc (od) in retinal fundus images is of critical importance, since it is very similar to hard exudates (found in pathology) in color and brightness. because of the importance of od localization in clinical applications, many techniques have been developed. in this paper, we present the results obtained from two methods, correlation and least square, to approximate the opti...

Journal: :iranian journal of nursing and midwifery research 0
akram aarabi effat kordi hassan farahmand farzaneh gholami soheila bakhtiari

background: personal protection equipments (ppes) should be easily accessible to decrease contact with infecting factors and also should be used purposefully to effectively keep the health care personnel in a safe distance from the patient blood and body fluid which can easily infect the operating rooms personnel. this study aimed to find the operating rooms' personnel compliance with standards...

Journal: :دراسات الادب المعاصر 0
فیرز حریرچی استاد دانشگاه آزاد واحد علوم وتحقیقات تهران سعیده بیرجندی دانشجوی دکترای دانشگاه علوم تحقیقات تهران

abstract this study aims to examine the use of religion heritage and application of the prophet job’s character mask. one of the important masks that have been used by contemporary poets is the prophet’s masks, especially the job of which the story exists in the quran. this character is a symbol of patience. darvish and sayyab are the most important poets who used the mask of this character.  e...

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