scholarly journals Quality Control of Display Devices for Medical Radiodiagnosis Employing the Standard TG18, GSDF and JND

2018 ◽  
Vol 6 (1) ◽  
pp. 21-32
Author(s):  
Bruno Ribeiro de Mesquita ◽  
C. Ferreira ◽  
Divanizia do Nascimento Souza
Keyword(s):  
Medical Diagnosis ◽  
Conversion Factor ◽  
American Association ◽  
Just Noticeable Difference ◽  
Display Devices ◽  
Digital Devices ◽  
Unit Conversion Factor ◽  
Display Function ◽  
Unit Conversion

Introduction: This work presents a study on the procedures for evaluating the quality of imaging display devices in radiology, considering the characteristic luminance curve obtained experimentally versus the Just Noticeable Difference (JND) and the lifetime of digital display devices. Materials & Methods: The evaluations were done using image patterns published by the American Association of Physicists in Medicine on Digital Imaging and Communication in Medicine (DICOM) and the Grayscale Standard Display Function (GSDF), viewed in DICOM software, with various shades of gray. A digital luximeter was used as the luminance meter. A correlation with the time of use of the devices was performed to classify the digital devices as primary (suitable for medical diagnosis) or secondary (suitable only for visualization of medical images). Results & Discussion: Among the monitors evaluated, those with a resolution between 2 and 5 megapixels were classified as primary for up to 50, 000 hours of use, and some above that time limit present behavior equivalent to secondary monitors. Monitoring the temporal evolution of the use of devices is important to avoid errors in medical diagnosis. Conclusion: The use of a calibrated digital luximeter with an illuminance unit conversion factor in luminance defined by this equipment was shown to be an alternative to replace a photometer when this latter is not available.

Definition of an HBsAg to DNA international unit conversion factor by enrichment of circulating hepatitis B virus forms

2015 ◽  
Vol 22 (9) ◽  
pp. 718-726 ◽  
Author(s):  
N. Désiré ◽  
Y. Ngo ◽  
J.-F. Franetich ◽  
L. Dembele ◽  
D. Mazier ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Conversion Factor ◽  
International Unit ◽  
Unit Conversion Factor ◽  
B Virus ◽  
Definition Of ◽  
Unit Conversion

scholarly journals Three Social Classroom Applications to Improve Student Attitudes

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Alf Inge Wang ◽  
Aleksander Aanesl. Elvemo ◽  
Vegard Gamnes
Keyword(s):  
Social Interaction ◽  
Software Architecture ◽  
Student Attitudes ◽  
Activity Level ◽  
Difficulty Level ◽  
Technical Quality ◽  
Digital Devices ◽  
Highly Sensitive ◽  
The Difference

The paper presents results of a quasiexperiment where the three social classroom applications Post-It, WordCloud, and Categorizer were used in software architecture lectures. Post-It and WordCloud are applications that allow students to brainstorm or give comments related to a given topic. Categorizer is a puzzle game where the students are asked to place a number of terms in one of two correct categories. The three applications are multimodal HTML5 applications that enable students to interact in a classroom using their own digital devices, and the teacher’s laptop is used to display progress and results on the large screen. The focus of this study was to evaluate how the difference of these applications and how their integration into the lecture affected the students’ motivation, engagement, thinking, activity level, social interaction, creativity, enjoyment, attention, and learning. In addition, the study evaluated the usability and the technical quality of the applications. The results of the experiment show that the way such applications are integrated into a lecture highly affects the students’ attitude. The experiment also showed that the game-based application was on average better received among the students and that the students’ attitude was highly sensitive to the difficulty level of the game.

scholarly journals A krónikus vesebetegek transzplantációval kapcsolatos attitűdjeinek vizsgálata

2018 ◽  
Vol 159 (46) ◽  
pp. 1898-1904
Author(s):  
Amanda Illés ◽  
Balázs Nemes ◽  
Sándor Kovács ◽  
Antal Bugán
Keyword(s):  
Quality Of Life ◽  
Renal Failure ◽  
Kidney Transplantation ◽  
Chronic Renal Failure ◽  
Medical Diagnosis ◽  
Negative Attitudes

Abstract: The patients’ attitudes towards kidney transplantation are significantly affected by the acceptance of the treatment to have a better quality of life. Exploration of the cognitive-emotional relation in patients with chronic renal failure. Our study included 285 kidney patients. We investigated three groups of patients: predialysis, dialysis and transplantation patients. In the framework of a pre-examination we have created an attitudinal questionnaire (85 items) that can be used to describe the cognitive and emotional attitude of kidney patients towards their illness and to measure scales. Negative attitudes towards transplantation were reported in dialysis and predialysis patients. In contrast, patients who had already undergone surgery were particularly positive about kidney transplantation. Many patients refuse transplantation which correlates with attitudes towards illness and healing. Our results showed that the exploration of the patients’ cognitive emotional relation along with the medical diagnosis would have a better adherence towards the kidney substitutional treatment which ensures a better quality of life. Orv Hetil. 2018; 159(46): 1898–1904.

scholarly journals SciaticNeuralgia an Agonising Encumbrance and its Modern Approach

2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Avinash Shankar
Keyword(s):  
Quality Of Life ◽  
Clinical Response ◽  
Medical Diagnosis ◽  
Calcium Supplementation ◽  
Modern Approach ◽  
Excellent Quality ◽  
Post Therapy

Sciatica not a medical diagnosis but is a symptom of an underlying vertebral condition i.e.,-lumbar herniation. dislocated disc, Spondylolisthesis and spinal stenosiswhere usually practiced medicine.Physicaltherapy, surgery and even alternative therapyfails to ensure cure but present regimea composite ofintravenous Calcium supplementation, cholecalciferoland bio neurogen composite achieved grade I clinical response in 93% cases without anywithdrawal. Drug adversity, hepatorenal alteration and recurrence in 5yrs of post therapy follow up with excellent quality of life

Study on Incentive Mechanism of MRCTM Closed-Loop Supply Chain Based on the Uncertainty Quality

2010 ◽  
Vol 108-111 ◽  
pp. 341-346
Author(s):  
Huang Ling
Keyword(s):  
Supply Chain ◽  
Closed Loop ◽  
Conversion Factor ◽  
Incentive Mechanism ◽  
Incentive Payment ◽  
Closed Loop Supply Chain ◽  
Optimal Analysis ◽  
The Incentive Mechanism ◽  
Product Recycling

In this paper, the MRCTM model of closed-loop supply chain was investigated. An effective incentive mechanism that considered the uncertainty quality of product recycling was designed by the introduction of brand conversion factor. The author made an optimal analysis of the incentive mechanism. Moreover, the influence of different parameters, such as quality and brand to the fixed reward and the unit incentive payment was analyzed and some useful results were obtained.

The “Perils” of Gender Coeducation

2016 ◽  
Author(s):  
Christi M. Smith
Keyword(s):  
Higher Education ◽  
American Association ◽  
Sexual Politics ◽  
University Women ◽  
Single Sex ◽  
Quality Of Higher Education ◽  
Private Organization ◽  
Women's Higher Education ◽  
First Time

Chapter 5 explores the intersection of racial and sexual politics in structuring various forms of higher education for women. A particular private organization—the Association of Collegiate Alumnae (ACA), now the American Association of University Women—played an important role in structuring women’s higher education. For the first time, the ACA initiated an evaluative campaign to measure the quality of higher education opportunities. This produced the first systematic efforts to commensurate educational offerings across colleges. Like contemporary rankings, this system exerted discipline on both coeducational and single-sex colleges.

Advanced Visualization Systems in Industrial Environments

2018 ◽  
pp. 1-34
Author(s):  
Manuel Pérez-Cota ◽  
Miguel R. González-Castro ◽  
María Díaz Rodríguez
Keyword(s):  
Industrial Process ◽  
The State ◽  
Industrial Plant ◽  
Industrial Workers ◽  
Quality Of Information ◽  
Display Devices ◽  
Industrial Environments ◽  
Visualization Systems ◽  
Advanced Visualization

Today's advanced visualization systems will revolutionize the way information is perceived in industrial environments. This will help the different industrial workers to interact more efficiently with the machines, equipment, and systems installed in the industrial plant. The display devices will provide operators with all the information they need to perform their work more efficiently, as well as inform them of all the hazards and safety in their environment. Also, screen operators, thanks to the use of a single 2.5D/3D screen, will possess exhaustive knowledge of the state of the industrial process. This increases the amount on quantity and quality of information that is offered to the operator and it avoids the superfluous navigation between operation screens. This chapter explores advanced visualization systems in industrial environments.

Urban Telecommunications Network

2010 ◽  
pp. 77-90 ◽  
Author(s):  
Tan Yigitcanlar ◽  
Hoon Jung Han
Keyword(s):  
Quality Of Life ◽  
Urban Infrastructure ◽  
Telecommunication Networks ◽  
Location Based Services ◽  
Infrastructure Management ◽  
Late 20Th Century ◽  
Digital Devices ◽  
Telecommunications Network ◽  
Recent Developments

Rapidly developing information and telecommunication technologies and their platforms in the late 20th Century helped improve urban infrastructure management and influenced quality of life. Telecommunication technologies make it possible for people to deliver text, audio and video material using wired, wireless or fiber-optic networks. Technologies convergence amongst these digital devices continues to create new ways in which the information and telecommunication technologies are used. The 21st Century is an era where information has converged, in which people are able to access a variety of services, including internet and location based services, through multi-functional devices such as mobile phones. This chapter discusses the recent developments in telecommunication networks and trends in convergence technologies, their implications for urban infrastructure planning, and for the quality of life of urban residents.

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