scholarly journals A Two Joint Neck Model to Identify Malposition of the Head Relative to the Thorax

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3297
Author(s):  
Philipp M. Schmid ◽  
Christoph M. Bauer ◽  
Markus J. Ernst ◽  
Bettina Sommer ◽  
Lars Lünenburger ◽  
...  
Keyword(s):  
Neck Pain ◽  
Body Height ◽  
Biomechanical Model ◽  
The Body ◽  
Head Orientation ◽  
Neck Length ◽  
Proposed Model ◽  
Biofeedback System ◽  
Simple Measurement ◽  
The Impact

Neck pain is a frequent health complaint. Prolonged protracted malpositions of the head are associated with neck pain and headaches and could be prevented using biofeedback systems. A practical biofeedback system to detect malpositions should be realized with a simple measurement setup. To achieve this, a simple biomechanical model representing head orientation and translation relative to the thorax is introduced. To identify the parameters of this model, anthropometric data were acquired from eight healthy volunteers. In this work we determine (i) the accuracy of the proposed model when the neck length is known, (ii) the dependency of the neck length on the body height, and (iii) the impact of a wrong neck length on the models accuracy. The resulting model is able to describe the motion of the head with a maximum uncertainty of 5 mm only. To achieve this high accuracy the effective neck length must be known a priory. If however, this parameter is assumed to be a linear function of the palpable neck length, the measurement error increases. Still, the resulting accuracy can be sufficient to identify and monitor a protracted malposition of the head relative to the thorax.

The use of open government data to citizen empowerment: an empirical validation of a proposed model

foresight ◽  
2018 ◽  
Vol 20 (6) ◽  
pp. 665-680 ◽  
Author(s):  
Md Nahin Hossain ◽  
Md Shamim Talukder ◽  
Md Rakibul Hoque ◽  
Yukun Bao
Keyword(s):  
The Body ◽  
Open Government ◽  
Equation Modeling ◽  
Research Model ◽  
Content Type ◽  
Proposed Model ◽  
Open Government Data ◽  
Citizen Empowerment ◽  
Government Data ◽  
The Impact

Purpose The purpose of this paper is to measure the impact of open government data (OGD) on citizen empowerment. Design/methodology/approach This study advances the body of knowledge on OGD by proposing an integrated research model based on transparency, accountability, participation and collaboration dimensions. The research model was empirically tested using 275 responses using the on-paper survey from the university students and professionals in Bangladesh. Data were analyzed using the structured equation modeling technique. Findings Findings revealed that transparency and participation have a positive and significant direct and indirect influence on citizen empowerment through accountability and collaboration. Overall, the four basic pillars of OGD such as transparency, participation, accountability and collaboration interrelated with each other and have the impact on citizen empowerment. Research limitations/implications This study has proposed an instrument that sums the dimensions of open government, which avoids tautology and redundancy among OGD dimensions. More research should be done to validate the proposed model and the instruments used in this study. Practical implications For the researchers, this study provides a basis for further refinement of individual models of empowerment. For practitioners, understanding the key constructs is crucial to design, refine and implement OGD systems and applications that empower citizens, create public values and strengthen the democratic process. Originality/value This research is the first step that empirically investigates the impact of OGD on citizen empowerment which is the ultimate goals of any democratic government.

The effect of the fishing season on the use value and physicochemical properties of the meat of selected fish species reared in Polish aquaculture

2019 ◽  
Vol 15 (3) ◽  
pp. 53-63
Author(s):  
Agnieszka Kaliniak
Keyword(s):  
Electrical Conductivity ◽  
Rainbow Trout ◽  
Physicochemical Properties ◽  
Fish Species ◽  
Grass Carp ◽  
Body Height ◽  
Winter Season ◽  
The Body ◽  
Fishing Season ◽  
The Impact

The objective of the research was to evaluate the impact of the fishing season on the value in use and physicochemical properties of the meat of selected fish species reared in Polish aquaculture. The study was conducted on five species: rainbow trout, common carp, grass carp, pike and tench. Fish were obtained from farms located in the Lublin Voivodeship in two seasons (spring/summer and autumn/winter). Morphometric measurements of the fish were performed, the percentage shares of body parts were assessed, and the physicochemical properties of the muscle tissue were measured: pH, electrical conductivity, water holding capacity, and CIE L*a*b* colour characteristics. The fishing season significantly affected the body weight of carp, rainbow trout and pike, the greatest body height of carp and rainbow trout, and the total length and head length of pike. Pike, grass carp and tench had significantly lower Fulton’s condition factors in the autumn/winter season than in the spring/summer season. The season significantly influenced the share of viscera in rainbow trout and grass carp, and that of fins in carp and rainbow trout. A significant impact of the season was also noted in the case of pH in rainbow trout and tench, electrical conductivity in trout, pike and tench, and the M/T ratio in grass carp and tench. Chromatic parameters differed significantly between seasons in pike (a*) and in carp and rainbow trout (b*).

scholarly journals An Innovative Data-Driven Computational Model to Predict High Blood Pressure Based on AAA++

2018 ◽  
Vol 7 (3.3) ◽  
pp. 114 ◽  
Author(s):  
Satyanarayana Nimmala ◽  
Y Ramadevi ◽  
B Ashwin Kumar
Keyword(s):  
Blood Pressure ◽  
Risk Factor ◽  
Computational Model ◽  
High Blood Pressure ◽  
Experimental Analysis ◽  
The Body ◽  
Data Driven ◽  
Blood Cholesterol ◽  
Proposed Model ◽  
The Impact

Every tissue of human body needs energy and oxygen for its livelihood. In order to supply energy and oxygen, the heart pumps the blood around the body. When heart pushes the blood against the walls of arteries, it creates some pressure inside the arteries, called as blood pressure. If this pressure is more than the certain level we treat it as high blood pressure (HBP). Nowadays HBP is a silent killer of many across the globe. So here we proposed a new data-driven computational model to predict HBP. Blood Pressure (BP) may be elevated because of many changes such as physical and emotional. In the proposed model we have considered AAA++ (age, anger level, anxiety level, obesity (+), blood cholesterol (+)), for experimental analysis. Our model initially calculates the correlation coefficient (CC) between each risk factor and class label attribute. Then based on the impact of each risk factor value and CC, it assigns the corresponding weight to it. Then proposed model uses risk factor value and its weight to predict whether person becomes a victim of HBP or not. We have used real-time data set for experimental analysis. It consists of 1000 records, which are collected from Doctor C, a Medical Diagnostic center, Hyderabad, India. 

Multivariate generalized linear mixed models for continuous bounded outcomes: Analyzing the body fat percentage data

2021 ◽  
pp. 096228022110432
Author(s):  
Ricardo R Petterle ◽  
Henrique A Laureano ◽  
Guilherme P da Silva ◽  
Wagner H Bonat
Keyword(s):  
Maximum Likelihood ◽  
Body Fat ◽  
The Body ◽  
Model Parameters ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Data Set ◽  
Proposed Model ◽  
Computational Implementation ◽  
The Impact

We propose a multivariate regression model to handle multiple continuous bounded outcomes. We adopted the maximum likelihood approach for parameter estimation and inference. The model is specified by the product of univariate probability distributions and the correlation between the response variables is obtained through the correlation matrix of the random intercepts. For modeling continuous bounded variables on the interval [Formula: see text] we considered the beta and unit gamma distributions. The main advantage of the proposed model is that we can easily combine different marginal distributions for the response variable vector. The computational implementation is performed using Template Model Builder, which combines the Laplace approximation with automatic differentiation. Therefore, the proposed approach allows us to estimate the model parameters quickly and efficiently. We conducted a simulation study to evaluate the computational implementation and the properties of the maximum likelihood estimators under different scenarios. Moreover, we investigate the impact of distribution misspecification in the proposed model. Our model was motivated by a data set with multiple continuous bounded outcomes, which refer to the body fat percentage measured at five regions of the body. Simulation studies and data analysis showed that the proposed model provides a general and rich framework to deal with multiple continuous bounded outcomes.

The effects of gratifications, flow and satisfaction on the usage of livestreaming services

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Chin Lung Hsu ◽  
Judy Chuan-Chuan Lin
Keyword(s):  
Uses And Gratifications ◽  
Flow Theory ◽  
The Body ◽  
Continuance Intention ◽  
Uses And Gratifications Theory ◽  
Content Type ◽  
Body Of Knowledge ◽  
Proposed Model ◽  
Intention To Continue ◽  
The Impact

PurposeThis study combines uses and gratifications theory and flow theory to create an integrated model that predicts continuance intention to use and satisfaction with livestreaming services.Design/methodology/approachThe proposed model was empirically evaluated using survey data collected from 304 users about their perceptions of livestream services.FindingsThe results indicate that gratifications such as entertainment, informativeness and sociability were all positively related to satisfaction. The authors find that flow mediates the impact of interactivity and telepresence on satisfaction. Notably, sociability gratification and satisfaction had a significant impact on a user's intention to continue to use livestreaming services and accounted for 77% of the variance.Originality/valueThe study adds to the body of knowledge by demonstrating the uses and gratifications theory and flow theory in live stream services. In addition, the findings may provide useful insights for live stream services streamers and marketers.

A New Biomechanical Model of Vocal Fold Vibrations: Preliminary Experimental Validation

2011 ◽  
Author(s):  
Zhenyi Wei ◽  
Marcio de Queiroz ◽  
Jing Chen ◽  
Bahadir K. Gunturk ◽  
Melda Kunduk
Keyword(s):  
Vocal Fold ◽  
High Speed ◽  
Model Comparison ◽  
Model Simulation ◽  
Biomechanical Model ◽  
Vocal Folds ◽  
The Body ◽  
Cover Layer ◽  
Proposed Model ◽  
Time Domains

This paper introduces a new seven-mass biomechanical model for the vibration of vocal folds. The model is based on the body-cover layer concept of the vocal fold biomechanics, and segments the cover layer into three masses. This segmentation facilitates the model comparison with the motion of the vocal glottis contour derived from modern high-speed digital imaging systems. The model simulation is compared to experimental data from a pair of healthy vocal folds showing good agreement in the frequency and time domains. The proposed model is also shown to outperform a previously-developed model that does not explicitly account for the body layer dynamics.

scholarly journals SIMULATION OF IMPACT PROCESS OF SOIL COMPACTION

2020 ◽  
Vol 17 (2) ◽  
pp. 208-218
Author(s):  
R. A. Chukharev ◽  
N. E. Tarasova ◽  
E. K. Chabutkin
Keyword(s):  
Half Space ◽  
Stress Condition ◽  
The Body ◽  
Joint Analysis ◽  
Special Equipment ◽  
Rheological Models ◽  
Material Density ◽  
Working Cycle ◽  
Proposed Model ◽  
The Impact

Introduction. During the construction of modern highways, much attention is paid to compaction of bases consisting of natural soils. They require the use of special equipment, including self-propelled machines, performing compaction in a continuous cycle. But when designing it, certain difficulties arise in determining the parameters of impact accelerators and the mass of the impact plate. The purpose of the work is to study the influence of the parameters of working equipment on the process of soil deformation.Materials and methods. To check the influence of the parameters of the tamper equipment on the compaction process, a method of mathematical modeling of the process using rheological models was chosen. The working cycle of impact ramming is divided into four phases. A mathematical description of the movement of the stamp and soil in each of the phases of movement is given. The change in the stress condition in time in the body of the soil half-space is considered.Results.Тhe time dependence of the soil stress condition was obtained for different stiffnesses of the spring impact accelerator and the change in the stamp mass. A joint analysis of the obtained dependencies showed that when designing impact equipment intended for compaction of naturally occurring soils, it requires matching the peak stresses from the mass of the stamp and the stiffness of the impact accelerators. This will make it possible to stretch the action of stresses in time, to form a compacted core in the soil half-space quickly and require a smaller number of strokes on one track to obtain the required material density.Discussion and conclusion. The proposed model of tamper equipment made it possible to consider the processes occurring in the soil half-space, to obtain comparative characteristics of the stamp mass and the rigidity of impact accelerators. The obtained data correlate well with the data of other authors. The results of the study may be useful to engineers involved in the development of new techniques of intensifying action.Financial transparency: the authors have no financial interest in the presented materials or methods. There is no conflict of interest.

scholarly journals THE INFLUENCE OF MENTORING ON WOMEN BUSINESS PERFORMANCE: A CONCEPTUAL FRAMEWORK

2021 ◽  
pp. 200-204
Author(s):  
Ramesh Thangavelu ◽  
Armanurah Mohamad ◽  
Mathivanan Jaganathan
Keyword(s):  
Random Sampling ◽  
Business Performance ◽  
The Body ◽  
Descriptive Statistics ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Proposed Model ◽  
Microfinance Institution ◽  
The Impact ◽  
Micro Enterprises

This study examines the impact of mentoring on the performance of women’s microenterprises in Malaysia’s northern states as well as participants in Amanah Ikhtiar Malaysia. A proposed model has been constructed on the basis of thorough literature studies. Based on the literature, no clear conclusions about the impact of mentoring on the success of women’s microenterprises have been reached. This study’s originality stems from the implications of information and knowledge for any micro-entrepreneur or microfinance institution to consider the impact of mentoring on performance. Aside from that, the paper’s other contribution is the microfinance institution’s moderating function in providing microfinance. This paper will undoubtedly contribute to the body of information on women’s business performance. The data for this study will be collected from 348 female micro-enterprises through a cross-sectional survey with stratified random sampling. Data will be analysed using descriptive statistics and regression using SPSS and SmartPLS. KEYWORDS: mentoring, microenterprise, microfinance, micro entrepreneurs and women business performance

scholarly journals Distribution of feet pressure on ground and maintaining body balance among 8–10-year-old children with and without external load application

2020 ◽  
Vol 22 (4) ◽  
Author(s):  
Jarosław Jaszczur-Nowicki ◽  
Joanna M. Bukowska ◽  
Dariusz Kruczkowski ◽  
Magdalena Pieniążek ◽  
Grzegorz Mańko ◽  
...  
Keyword(s):  
Body Mass ◽  
Research Group ◽  
External Load ◽  
Body Height ◽  
The Body ◽  
Body Balance ◽  
Balance Testing ◽  
Foot Force ◽  
The Right ◽  
The Impact

Purpose: The aim of this study was to analyse the impact of applying an external load on the distribution of pressure on the plantar side of the foot and maintaining body balance, using the podobarographic platform. Methods: The study was conducted on 130 school children aged 8–10: girls (n = 68, body mass = 22.8 ± 6.0 kg, body height = 129.3 ± 7.5 cm) and boys (n = 62, body mass = 31.1 ± 6.5 kg, body height 134.4 ± 7.3 cm). The study involved 2 trials. At first, children stood on the platform assuming a natural position. Then, they put on a 5-kg backpack and stood on the platform once more. Results: The results indicate that after backpack loading, for the total research group of girls and boys, statistically significant differences were found in the distribution of foot force on the ground in the left forefoot (p = 0.008), metatarsus (p = 0.000) and heel areas (p = 0.002). While in the right foot, these differences were noted for the forefoot (p = 0.024) and metatarsus (p = 0.000). The results of balance testing were also statistically significant. They concerned measurements of the body barycentre area (cop-bars p = 0.003), the barycentre area of the left foot (l-bars p = 0.034) and the parameter comparing distance to surface ratio (cop-lsf p = 0.000). Conclusions: It may be concluded that prolonged overloading with backpacks affects movement patterns, which may further lead to the acquisition and consolidation of postural defects.

scholarly journals The impact of adjustment of a weight-height index (W/H2) for frame size on the prediction of body fatness

1985 ◽  
Vol 54 (2) ◽  
pp. 335-342 ◽  
Author(s):  
Maartje A. Rookus ◽  
Jan Burema ◽  
Paul Deurenberg ◽  
Wilhelmina A. M. Van Der Wiel-Wetzels
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Body Fat ◽  
Body Height ◽  
The Body ◽  
Frame Size ◽  
Body Fatness ◽  
Percentage Of Body Fat ◽  
Body Diameter ◽  
The Impact

1. The impact of frame-size categories in weight-height tables was studied by comparing the efficiency of the body-mass index (weight/height2 (W/H2)) and weight adjusted for body-height and a body-diameter, W/(H2Dp), in predicting body fatness.2. Body-weight, body-height, six body-diameters and four skinfold thicknesses were measured in ninety-five men and seventy women, aged between 23 and 35 years. Percentage of body fat was calculated from skinfold thicknesses using regression equations according to Durnin & Womersley (1974).3. The inclusion of a body-diameter increased the explained variation of body fatness from 57% to 62% (knee) and 63% (shoulder) in men and from 63% to 69% (knee) in women.4. It can be concluded that in the present population the efficiency of the prediction of percentage of body fat was not improved markedly by the inclusion of a body-diameter in the body-mass index, thus giving no support for the inclusion of frame-size categories in weight-height tables.

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