scholarly journals Application of the Structure Function in the Evaluation of the Human Factor in Healthcare

Symmetry ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 93
Author(s):  
Elena Zaitseva ◽  
Vitaly Levashenko ◽  
Jan Rabcan ◽  
Emil Krsak
Keyword(s):  
Structure Function ◽  
Medical Error ◽  
System Performance ◽  
Human Factor ◽  
Uncertain Data ◽  
Human Reliability Analysis ◽  
Performance Levels ◽  
New Device ◽  
Incomplete And Uncertain Data ◽  
One Year

A structure function is one of the possible mathematical models of systems in reliability engineering. A structure function maps sets of component states into system performance levels. Methods of system reliability evaluation based on structure function representation are well established. A structure function can be formed based on completely specified data about system behavior. Such data for most real-world systems are incomplete and uncertain. The typical example is analysis and evaluation of the human factor. Therefore, the structure function is not used in human reliability analysis (HRA) typically. In this paper, a method for structure function construction is proposed based on incomplete and uncertain data in HRA. The proposed method application is considered for healthcare to evaluate medical error. This method is developed using a fuzzy decision tree (FDT), which allows all possible component states to be classified into classes of system performance levels. The structure function is constructed based on the decision table, which is formed according to the FDT. A case study for this method is considered by evaluating the human factor in healthcare: complications in the familiarization and exploitation of a new device in a hospital department are analyzed and evaluated. This evaluation shows the decreasing of medical errors in diagnosis after one year of device exploitation and a slight decrease in quality of diagnosis after two months of device exploitation. Numerical values of probabilities of medical error are calculated based on the proposed approach.

scholarly journals Inverse Optimum Safety Factor Method for Reliability-Based Topology Optimization Applied to Free Vibrated Structures

2019 ◽  
pp. 8-19 ◽  
Author(s):  
Ghias Kharmanda ◽  
Imad R. Antypas ◽  
Alexey G. Dyachenko
Keyword(s):  
Topology Optimization ◽  
Structure Function ◽  
Modal Analysis ◽  
Safety Factor ◽  
Optimization Model ◽  
High Performance ◽  
Structural Type ◽  
Efficient Tool ◽  
Performance Levels ◽  
Reliability Level

Introduction. The classical topology optimization leads to a prediction of the structural type and overall layout, and gives a rough description of the shape of the outer as well as inner boundaries of the structure. However, the probabilistic topology optimization (or reliability-based topology optimization) model leads to several reliability-based topologies with high performance levels. The objective of this work is to provide an efficient tool to integrate the reliability-based topology optimization model into free vibrated structure. Materials and Methods. The developed tool is called inverse optimum safety method. When dealing with modal analysis, the choice of optimization domain is highly important in order to be able to eliminate material taking account of the constraints of fabrication and without affecting the structure function. This way the randomness can be applied on certain boundary parameters. Results. Numerical applications on free vibrated structures are presented to show the efficiency of the developed strategy. When considering a required reliability level, the resulting topology represents a different topology relative to the deterministic resulting one. Discussion and Conclusion. In addition to its simplified implementation, the developed inverse optimum safety factor strategy can be considered as a generative tool to provide the designer with several solutions for free vibrated structures with different performance levels.

Nemiah Valley Photovoltaic-Diesel Mini-Grid: System Performance and Fuel Saving Based on One Year of Monitored Data

2012 ◽  
Vol 3 (1) ◽  
pp. 167-175 ◽  
Author(s):  
Sophie Pelland ◽  
Dave Turcotte ◽  
George Colgate ◽  
Andrew Swingler
Keyword(s):  
System Performance ◽  
Fuel Saving ◽  
Grid System ◽  
One Year

Structure-function relationships of human factor VIII complex studied by thioredoxin dependent disulfide reduction

1984 ◽  
Vol 35 (6) ◽  
pp. 637-651 ◽  
Author(s):  
Birgit Hessel ◽  
Hans Jörnvall ◽  
Lars Thorel ◽  
Sonja Söderman ◽  
Olf Larsson ◽  
...  
Keyword(s):  
Factor Viii ◽  
Structure Function ◽  
Human Factor ◽  
Disulfide Reduction ◽  
Human Factor Viii

Increasing Manufacturing Productivity using Human Factors Principles

1981 ◽  
Vol 25 (1) ◽  
pp. 204-206 ◽  
Author(s):  
Roger J. Hasselquist
Keyword(s):  
Human Factors ◽  
Human Factor ◽  
Actual Data ◽  
Cause And Effect ◽  
Manufacturing Line ◽  
Subjective Method ◽  
Manufacturing Productivity ◽  
One Year

Justifying the premium cost of applying human factors principles in the manufacturing workplace has been a major problem. The traditional, objective, cause-and-effect analyses are not applicable due to the lack of data. IBM Boulder developed an alternative – a subjective method of cost justification. Measurement of actual data has verified paybacks of the premium cost due to human factor considerations of less than one year. This paper discusses design highlights from having applied human factors principles to one manufacturing line.

scholarly journals EVALUATING PRODUCTIVITY TARGET AND ERGONOMICS SAFEGUARD: A HUMAN FACTOR STUDY OF BOTTLE MAKING INDUSTRY

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
HEZEKIAH OLUWOLE ADEYEMI OLUWOLE ADEYEMI
Keyword(s):  
Key Words ◽  
Human Factor ◽  
Health And Safety ◽  
T Test ◽  
Ratio Scale ◽  
Subjective Perceptions ◽  
Factor Study ◽  
Southwest Nigeria ◽  
One Year ◽  
The Relationship

This study evaluated the relationship between machinery operators’ productivity efficiency (MOPE) and the machinery operators’ on-the-job ergonomics satisfactions (MOOES) in Southwest Nigeria bottle making industry (BMI). The MOPE, for a period of one year, was computed for 50 semi-automatic PET blow machines operators in 12 bottle making industries. The subjective perceptions of the workers (category ratio scale - (CRS)) with respect to workloads elements and exposures to machine related hazards were measured using a questionnaire. MOPE results showed 78% of the studied subjects scored about 50% and their productivity were rated average. However, more than 92% of the operators suffered from mental, physical and environmental workload elements. With t- test, MOPE showed statistically significantly higher means value (54.22 ± 2.5, SEM= 1.8) compared to MOOES (34.40 ± 2.75, SEM=.125), t(98) = 23.309, p = .001 hence, were significantly different t- confirming a gap between machinery operators’ ergonomics satisfactions and their productivity levels. The study suggested development of administrative measures capable of bridging the gap to enhance health and safety of the workers. Key words: ergonomics, satisfaction, machinery, operators, productivity, bottle, industry.

scholarly journals Informacinės sistemos ir personalo ugdymas: galimybės ir apribojimai

2011 ◽  
Vol 55 ◽  
pp. 82-92 ◽  
Author(s):  
Rimantas Lukoševičius ◽  
Albinas Marčinskas
Keyword(s):  
Information Systems ◽  
Knowledge Economy ◽  
System Performance ◽  
Human Factor ◽  
Training Needs ◽  
Training System ◽  
Management Communication ◽  
Accounting Systems ◽  
Strategic Integration ◽  
Information Database

Personalo vadybos informacinės sistemos (PVIS)* atlieka vis didesnį vaidmenį personalo ugdyme ir vadyboje. Globalios rinkos ir stiprėjančios konkurencijos sąlygomis kyla naujų iššūkių, o informacinės sistemos, šių sistemų organizavimas, efektyvi sąveika su personalo ugdymo procesu tampa lemiamu personalo vadybos veiksniu. Informacinių sistemų galimybių ir vadovo gebėjimų sąveika lemia personalo ugdymo galimybes ir apribojimus. Straipsnio tikslas – atskleisti PVIS galimybes, raidos etapus, funkcijas ir apribojimus, nustatyti vadovo / vadybininko kompetencijas ugdyti personalą pasitelkiant PVIS, numatyti PVIS ir vadovo funkcionalius pasikeitimus globalioje žinių valdomoje ekonomikoje ir perspektyvas, išnagrinėti PVIS veikos modulius siekiant strateginių įmonės tikslų.Straipsnyje pateikiama PVIS charakteristika, nagrinėjamos galimybės ir apribojimai, aktualumas, sąsajos su personalo ugdymo procesu, vadovo kompetencijos ir PVIS sąveikos įtaka sėkmingai įmonės veiklai.Pagrindiniai žodžiai: personalo ugdymas, personalo informacinės sistemos, personalo vadybininkas, PVIS galimybė, PVIS apribojimai, PVIS veiklos praktika, PVIS ir vadovo sąveika.Information Systems and Personnel Management: Possibilities and LimitationsRimantas Lukoševičius, Albinas Marčinskas SummaryThe rapidly changing business reality actualizes the development of personnel information systems, adjusting them to training needs. Within the knowledge economy sector, this instrument becomes a factor of a company’s strategic advantage. The information model of the personnel training system has to reflect strategic integration, information database management, communication and the compatibility of accounting systems, etc. It is emphasized that such model would function only when leaders of all levels are involved. The perspective of personnel information systems is influenced most by relations between the organization and its employee. Herewith the position of the leader is transformed within this system: from the executive to the client. Thereby, the importance of the human factor in maintaining the effective overall system performance is highlighted.pan>

scholarly journals MEDICAL ERROR, PERSISTENT VEGETATIVE STATE AND OVER NINETEEN LONG YEARS OF MEDICAL CARE

2021 ◽  
Vol 71 (4) ◽  
pp. 1504-07
Author(s):  
Zahid Farooq Baig ◽  
Aslam Khan ◽  
Ibrar Hussain Zaidi ◽  
Muhammad Azmat Khan ◽  
Muhammad Salman Ashra
Keyword(s):  
Medical Care ◽  
Medical Error ◽  
Vegetative State ◽  
Persistent Vegetative State ◽  
Kidney Calculi ◽  
Key Issues ◽  
Minor Injuries ◽  
Doctor's Office ◽  
One Year ◽  
Tract Infections

A medical error is a preventable adverse effect of medical care. Errors can happen in the hospital at the doctor’s office, at the pharmacy, laboratory and ward. These can also occur at home by the patient or the attendant. These errors may lead to death or major/minor injuries or can also be harmless. However these should be recorded, analysed and remedial measures implemented to reduce the risk of being committed in the future. We are reporting the medical care of our patient in persistent vegetative state over nineteen years due to medical error at our hospital resulting in brain anoxia. The key issues faced during the care were recurrent respiratory and urinary tract infections and in last one year kidney calculi leading to chronic kidney disease and its complications. There are no contractures or thrombo-embolic events and above all no bed sore over this period.

Sign in / Sign up

Export Citation Format

Share Document