scholarly journals Comparison of Assistive Orthopedic Products using the Pugh Matrix. A Universal Design and Ergonomics Approach

2021 ◽  
Vol 18 (1) ◽  
pp. 1-13
Author(s):  
Alana Rosa López ◽  
Juan Luis Hernández Arellano ◽  
Edson Francisco Estrada Meneses
Keyword(s):  
Rheumatoid Arthritis ◽  
Universal Design ◽  
Design Criteria ◽  
Key Factors ◽  
Ergonomic Design ◽  
Key Factor ◽  
Design Requirements ◽  
The Relationship ◽  
Selection Of

The objective of this article is to analyze the relationship between universal design and ergonomics as key factors in the design and selection of assistive products developing a comparison using the Pugh matrix. A group of users was interviewed to determine the design requirements of aid products and then, the products available in the market were evaluated to determine which could be the best. The user’s needs were identified through the evaluations among patients with rheumatoid arthritis focusing on universal and ergonomic design and sixty-nine assistive products were selected. The Pugh matrix was applied to compare and evaluate them based on design criteria. The results indicate that accessibility products must be more efficient in terms of reach, grip, apprehension, pincer grasp, materials, and the force required to use the product. However, the aesthetics of the design was a key factor for the user to select the product and feel more comfortable when using it.

scholarly journals Why We Go Where We Go: Profiling User Decisions on Choosing POIs

2020 ◽  
Author(s):  
Renjun Hu ◽  
Xinjiang Lu ◽  
Chuanren Liu ◽  
Yanyan Li ◽  
Hao Liu ◽  
...  
Keyword(s):  
Key Factors ◽  
Real World Data ◽  
Decision Factors ◽  
Point Of Interest ◽  
Learning Factor ◽  
Poi Recommendation ◽  
Key Factor ◽  
Selection Of ◽  
Decision Structures

While Point-of-Interest (POI) recommendation has been a popular topic of study for some time, little progress has been made for understanding why and how people make their decisions for the selection of POIs. To this end, in this paper, we propose a user decision profiling framework, named PROUD, which can identify the key factors in people's decisions on choosing POIs. Specifically, we treat each user decision as a set of factors and provide a method for learning factor embeddings. A unique perspective of our approach is to identify key factors, while preserving decision structures seamlessly, via a novel scalar projection maximization objective. Exactly solving the objective is non-trivial due to a sparsity constraint. To address this, our PROUD adopts a self projection attention and an L2 regularized sparse activation to directly estimate the likelihood of each factor to be a key factor. Finally, extensive experiments on real-world data validate the advantage of PROUD in preserving user decision structures. Also, our case study indicates that the identified key decision factors can help us to provide more interpretable recommendations and analyses.

Numerical Study on Explosion Cutting Process of PMMA Plate and Key Factors Influence on Cutting Performance

2018 ◽  
Author(s):  
Lei Ge ◽  
Yantao Wang ◽  
Huipeng Hu ◽  
Lijun Li ◽  
Yiben Zhang
Keyword(s):  
Numerical Study ◽  
Engineering Application ◽  
Material Model ◽  
Cutting Performance ◽  
Cutting Process ◽  
Transient Pressure ◽  
Key Factors ◽  
Explicit Solver ◽  
The Relationship ◽  
Selection Of

Polymethylmethacrylate (PMMA) has been widely utilized to manufacture the covers of aircraft cockpits, naval vessels, car windows and so on, due to their high transmittance, low density, easy processing formability, high corrosion resistance and excellent mechanical properties. Under special conditions such as ejection lifesaving, the PMMA plate needs to be split precisely by explosion cutting technology. Hence, an accurate numerical simulation of PMMA structures is significantly important in engineering application. This paper aims to study the cutting behavior of PMMA plate numerically and investigate the influencing factors on cutting performance of PMMA plates. First of all, the simulation of explosion cutting process of PMMA plate is carried out by a non-linear explicit solver in LS-DYNA software using the fluid-solid coupling method. Jones-Wilkins-Lee (JWL) equation of state is used to simulate the relationship between the transient pressure and specific volume of explosives during explosion. The material model considering failure behaviors is used in the simulation. Additionally, the influence of explosive dosage as well as explosive type on the cutting performance of PMMA plate is investigated. Furthermore, the effect of PMMA geometry size on cutting performance is discussed. This study contributes to the knowledge for the design of PMMA structures which needs explosion cutting and the selection of explosive dosage and explosive type.

scholarly journals THE ROLE OF ANGIOPOIETIN-LIKE PROTEINS IN THE DEVELOPMENT OF RENAL DYSFUNCTION IN PATIENTS WITH RHEUMATOID ARTHRITIS AND METABOLIC CHANGES

2020 ◽  
Vol 76 (4) ◽  
pp. 37-41
Author(s):  
V.A. Aleksandrov ◽  
◽  
L.N. Shilova ◽  
A.V. Aleksandrov ◽  
◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Renal Dysfunction ◽  
Estimated Glomerular Filtration Rate ◽  
Average Duration ◽  
Metabolic Changes ◽  
Average Strength ◽  
Two Factors ◽  
Key Factor ◽  
The Relationship

The article is devoted to the assessment of the relationship between the serum concentrations of angiopoietin-like proteins of types 3 and 4 (ANGPTL 3 and 4) and the development of renal dysfunction in patients with rheumatoid arthritis (RA) with metabolic changes. We examined 158 patients with RA (91,8 % – women and 8,2 % – men) aged 21 to 80 years old with the average duration of diseases – 9 [4–15] years. Negative correlations of average strength between the indices of the estimated glomerular filtration rate (eGFR) according to the 2009 CKD-EPI formula and the level of ANGPTL 3 (r = –0,32, p < 0,001) and ANGPTL 4 (rS = –0,31, p < 0,001) were revealed. It was found that renal dysfunction and the presence of metabolic syndrome (R 2 = 0,33) are the two factors which have a direct effect on the ANGPTL 4 concentration in RA patients’ serum. ANGPTL type 4 should be considered as a key factor linking the development of renal dysfunction and metabolic changes caused by rheumatoid inflammation

scholarly journals Key factors involved in reduction of damage to sunflower by the European sunflower moth in China through late planting

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0250209
Author(s):  
Yunxia Cheng ◽  
Thomas W. Sappington ◽  
Lizhi Luo ◽  
Chenguang Liu ◽  
Yongjun Wang ◽  
...  
Keyword(s):  
Time Window ◽  
Infestation Rate ◽  
Optimal Time ◽  
Key Factors ◽  
Late Planting ◽  
Key Factor ◽  
Sunflower Moth ◽  
The Relationship ◽  
Seed Infestation ◽  
Production Losses

The European sunflower moth, Homoesoma nebulellum (Denis et Schiffermüller), emerged as a major new pest in Bayannur, China, in 2006. Insecticidal control with a single application is problematic because timing is critical, and multiple applications increase production and environmental costs. Management of H. nebulellum by planting date adjustment can be effective, but the optimal time window for late planting is unknown. Natural levels of H. nebulellum infestation were compared among sunflowers planted on five dates from April 25 to June 5 in two years, and the relationship between timing of adult abundance and flowering assessed. Delaying planting of sunflower from the traditional planting period of April 25 –May 5 to May 15 –June 5 significantly decreased damage by H. nebulellum. Seed infestation rate was 30–40 times higher, and number of larvae/head 75–100 times higher in the earliest two plantings than in the latest two. Within two years of implementing delayed planting in Bayannur city, infestation area decreased from 72% in 2006 to 1.5% in 2008, and production losses decreased from 4.5 ton/ha in 2006 to 0.36 ton/ha in 2008, a 97% decrease compared to 2006. Moreover, the infestation area caused by H. nebulellum was continuously controlled below 5.3% of the planting area since 2008. We found the overlap between the first two days of flowering and peak adult presence was the key factor influencing level of damage caused by H. nebulellum. Because the number of eggs laid in the first two days of flowering accounted for 68% of the total, and sunflower seed infestation rate was positively correlated with the number of trapped adults weighted by proportion of daily oviposition. Oviposition of the majority of eggs in the first two days of flowering suggests an evolutionary mechanism whereby females choose host plants most conducive to larval development, consistent with the preference-performance hypothesis.

scholarly journals Key Factor for Successful Roll-on Roll-off (Ro-Ro) Operation: a Delphi Technique at Langkawi Terminal, Kedah

2019 ◽  
Vol 9 (2) ◽  
pp. 4566-4573
Keyword(s):  
Questionnaire Survey ◽  
Delphi Technique ◽  
Reliability And Validity ◽  
Transportation Systems ◽  
Air Transport ◽  
Key Factors ◽  
Sea Transport ◽  
Sea Transportation ◽  
Key Factor ◽  
The Relationship

Roll-on Roll-off (Ro-Ro) vessel been used as a sea transportation that designed to carry cargo as well with passenger from one place to another place. This research is conducted at Langkawi Islands. The main transportation systems of this island are more on sea transport rather than air transport. The dissatisfaction of passengers with the facilities provided by Ro-Ro’s company at Langkawi Terminal has been discovered. Thus, this research are aims to investigate the key factors for successful Roll-on Roll-off (Ro-Ro) Short Sea Shipping (SSS) operations in Langkawi Terminal and to determine the relationship between key factors toward successful of Ro-Ro operation at Langkawi Terminal. Seven (7) competent expertise and experienced respondents in maritime sector at Langkawi terminal has been contributed in this research. A Delphi survey has been conducted for this research to identify any key factors and access their opinion on the relative of all key factors involved. Two (2) round of the Delphi questionnaire survey be used as a research instrument with the Likert scale. The reliability and validity of this research is 0.730. In conclusion, most respondents agreed that the key factors that have been analysis play an important role in achieving the successful of Ro-Ro operation at Langkawi Terminal.

scholarly journals THE RELATIONSHIP BETWEEN TECHNOLOGICAL DYNAMICS OF NEW TECHNOLOGIES AND ABSORPTIVE CAPACITY OF EXPORT COMPANIES OF THE REPUBLIC OF CROATIA

2020 ◽  
Vol 29 (2) ◽  
pp. 425-448
Author(s):  
Ivana Martinčević ◽  
◽  
Goran Kozina
Keyword(s):  
Absorptive Capacity ◽  
New Technologies ◽  
New Technology ◽  
Key Factors ◽  
Doing Business ◽  
Key Factor ◽  
Information And Communication ◽  
Great Pressure ◽  
The Republic ◽  
The Relationship

Information and communication and digital technologies provide numerous opportunities for companies so that companies can operate more easily and efficiently globally and, due to new technologies, gain a competitive advantage. New trends and technologies are creating great pressure in the market and companies are forced to look for new, faster and more efficient ways and models of doing business. Markets dictate the pace and are becoming more digital precisely due to technology that is advancing and evolving rapidly. With new technology, knowledge and innovations are the key factors to success. Many companies today are defined and described as knowledge companies that accumulate and develop existing knowledge but also adopt new. The aim of this paper was to explore and examine the ability of the organization to absorb knowledge (absorptive capacity) as the key factor in the process of acceptance of new technologies. The research was conducted in the Republic of Croatia and Croatian export companies (micro, small, medium and large) were included in the research. The research hypothesis "Technological dynamics of new technologies affect the absorptive capacity of acceptance of new technologies in export companies of the Republic of Croatia" was confirmed through conducted research. The research has proven that absorptive capacity plays a major role in the context of an organization’s ability to recognize, acquire, transform, and use new knowledge and new technologies.

IMPROVEMENT OF SPRING DURUM WHEAT SELECTION METHODOLOGIES UNDER CLIMATE CHANGE CONDITIONS

1970 ◽  
pp. 33-36
Author(s):  
А. I. Grabovets ◽  
V. P. Kadushkina ◽  
S. А. Kovalenko
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Correlation Coefficient ◽  
Harvest Index ◽  
Unit Area ◽  
Correlation Coefficients ◽  
Chemical Mutagenesis ◽  
Main Method ◽  
The Relationship ◽  
Selection Of

With the growing aridity of the climate on the Don, it became necessary to improve the methodology for conducting the  breeding of spring durum wheat. The main method of obtaining the source material remains intraspecific step hybridization. Crossings were performed between genetically distant forms, differing in origin and required traits and properties. The use of chemical mutagenesis was a productive way to change the heredity of genotypes in terms of drought tolerance. When breeding for productivity, both in dry years of research and in favorable years, the most objective markers were identified — the size of the aerial mass, the mass of grain per plant, spike, and harvest index. The magnitude of the correlation coefficients between the yield per unit area and the elements of its structure is established. It was most closely associated with them in dry years, while in wet years it decreased. Power the correlation of the characteristics of the pair - the grain yield per square meter - the aboveground biomass averaged r = 0.73, and in dry years it was higher (0.91) than in favorable ones (0.61 - 0.70) , between the harvest and the harvest index - r = 0.81 (on average). In dry years, the correlation coefficient increased to 0.92. Research data confirms the greatest importance of the mass of grain from one ear and the plant in the formation of grain yield per unit area in both dry and wet years. In dry years, the correlation coefficient between yield and grain mass per plant was on average r = 0.80; in favorable years, r = 0.69. The relationship between yield and grain mass from the ear was greater — r = 0.84 and r = 0.82, respectively. Consequently, the breeding significance of the aboveground mass and the productivity of the ear, as a criterion for the selection of the crop, especially increases in the dry years. They were basic in the selection.

Analisa Pemilihan Moda Transportasi Umum Rute Tanjung Karang – Bandara Radin Inten II Dengan Stated Preference dan Uji Crame’s V

2018 ◽  
Vol 2 (2) ◽  
pp. 137
Author(s):  
Muhammad Abi Berkah Nadi
Keyword(s):  
Regression Analysis ◽  
Utility Function ◽  
Stated Preference ◽  
Technical Analysis ◽  
Chi Square ◽  
Time Headway ◽  
Independent Variable ◽  
The Relationship ◽  
Selection Of

Radin Inten II Airport is a national flight in Lampung Province. In this study using the technical analysis stated preference which is the approach by conveying the choice statement in the form of hypotheses to be assessed by the respondent. By using these techniques the researcher can fully control the hypothesized factors. To determine utility function for model forecasting in fulfilling request of traveler is used regression analysis with SPSS program. The analysis results obtained that the passengers of the dominant airport in the selection of modes of cost attributes than on other attributes. From the result of regression analysis, the influence of independent variable to the highest dependent variable is when the five attributes are used together with the R square value of 8.8%. The relationship between cost, time, headway, time acces and service with the selection of modes, the provision that states whether or not there is a decision. The significance of α = 0.05 with chi-square. And the result of Crame's V test average of 0.298 is around the middle, then the relationship is moderate enough.

A Biomarker Combining Imaging and Neuropsychological Assessment for Tracking Early Alzheimer's Disease in Clinical Trials

2018 ◽  
Vol 15 (5) ◽  
pp. 429-442 ◽  
Author(s):  
Nishant Verma ◽  
S. Natasha Beretvas ◽  
Belen Pascual ◽  
Joseph C. Masdeu ◽  
Mia K. Markey ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Clinical Trials ◽  
Cognitive Impairment ◽  
Latent Variable ◽  
Brain Regions ◽  
Disease Assessment ◽  
Latent Variable Analysis ◽  
The Relationship ◽  
Selection Of

Background: Combining optimized cognitive (Alzheimer's Disease Assessment Scale- Cognitive subscale, ADAS-Cog) and atrophy markers of Alzheimer's disease for tracking progression in clinical trials may provide greater sensitivity than currently used methods, which have yielded negative results in multiple recent trials. Furthermore, it is critical to clarify the relationship among the subcomponents yielded by cognitive and imaging testing, to address the symptomatic and anatomical variability of Alzheimer's disease. Method: Using latent variable analysis, we thoroughly investigated the relationship between cognitive impairment, as assessed on the ADAS-Cog, and cerebral atrophy. A biomarker was developed for Alzheimer's clinical trials that combines cognitive and atrophy markers. Results: Atrophy within specific brain regions was found to be closely related with impairment in cognitive domains of memory, language, and praxis. The proposed biomarker showed significantly better sensitivity in tracking progression of cognitive impairment than the ADAS-Cog in simulated trials and a real world problem. The biomarker also improved the selection of MCI patients (78.8±4.9% specificity at 80% sensitivity) that will evolve to Alzheimer's disease for clinical trials. Conclusion: The proposed biomarker provides a boost to the efficacy of clinical trials focused in the mild cognitive impairment (MCI) stage by significantly improving the sensitivity to detect treatment effects and improving the selection of MCI patients that will evolve to Alzheimer’s disease.

Examining Organizational, Cultural, and Individual-Level Factors Related to Workplace Safety and Health Awareness and Risks: A Systematic Review and Metric Analysis (Preprint)

2018 ◽  
Author(s):  
Edmund W. J. Lee ◽  
Han Zheng ◽  
Htet Htet Aung ◽  
Megha Rani Aroor ◽  
Chen Li ◽  
...  
Keyword(s):  
Systematic Review ◽  
Citation Count ◽  
Workplace Safety ◽  
Key Factors ◽  
Health Awareness ◽  
Individual Level ◽  
Metric Analysis ◽  
Safety And Health ◽  
The Impact ◽  
The Relationship

BACKGROUND Promoting safety and health awareness and mitigating risks are of paramount importance to companies in high-risk industries. Yet, there are very few studies that have synthesized findings from existing online workplace safety and health literature to identify what are the key factors that are related to (a) safety awareness, (b) safety risks, (c) health awareness, and (d) health risks. OBJECTIVE As one of the first systematic reviews in the area of workplace health and safety, this study aims to identify the factors related to safety and health awareness as well as risks, and systematically map these factors within three levels: organizational, cultural, and individual level. Also, this review aims to assess the impact of these workplace safety and health publications in both academic (e.g., academic databases, Mendeley, and PlumX) and non-academic settings (e.g., social media platform). METHODS The systematic review was conducted in line with procedures recommended by Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). First, Proquest, ScienceDirect and Scopus were identified as suitable databases for the systematic review. Second, after inputting search queries related to safety and health awareness and risks, the articles were evaluated based on a set of inclusion and exclusion criteria. Third, the factors identified in the included articles were coded systematically. Fourth, the research team assessed the impact of the articles through a combination of traditional and new metric analysis methods: citation count, Altmetric Attention Score, Mendeley readers count, usage count, and capture count. RESULTS Out of a total of 4,831 articles retrieved from the three databases, 51 articles were included in the final sample and were systematically coded. The results revealed six categories of organizational (management commitment, management support, organizational safety communication, safety management systems, physical work environment, and organizational environment), two cultural (interpersonal support and organizational culture), and four individual (perception, motivation, attitude and behavior) level factors that relate to safety and health awareness and risk. In terms of impact, the relationship between citation count and the various metrics measuring academic activity (e.g., Mendeley readers, usage count, and capture count) were mostly significant while the relationship between citation count and Altmetric Attention Score was non-significant. CONCLUSIONS This study provides a macro view of the current state of workplace safety and health research and gives scholars an indication on some of the key factors of safety and health awareness and risks. Researchers should also be cognizant that while their work may receive attention from the scholarly community, it is important to tailor their communication messages for the respective industries they are studying to maximize the receptivity and impact of their findings. CLINICALTRIAL N.A.

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