Bad Working Environment Research Articles

Association between Psychosocial Factor and Risk of Musculosceletal Disorders in Productive Age Patient at RSUD Dr. Moewardi Surakarta

Musculoskeletal Disorders (MSDs) is a form of complaint that occurs in bones, joints, ligaments, tendons, and muscles. Globally, MSDs are the biggest single cause of health complaints among workers. The purpose of this study was to analyze psychosocial factors that can increase risk of MSDs in reproductive age patients. This study used an analytic observational study with cross-sectional design. A sample 0f 116 subject was selected for this study by fixed disease sampling. Data were collected by questionnaire and medical record, and analyzed by path analysis. Results: Risk of MSDs was directly related to with non-ergonomic work posture (OR: 2.35; CI 95%:1.44 to 3.26; P<0.001), there was indirect association with stress level variable (OR:0.79;CI 95%:0.01 to 1.58;P=0.047) which affected by type of work variabel (OR:0.83;CI 95%:0.87 to 1.58;P=0.029) and indirectly assaciated with bad work environment (OR:1.07;CI 95%:0.28 to 1.85;P=0.008).

Valoración de los regímenes de trabajo y descanso. Caso de estudio: CNT Cotopaxi

A nivel mundial hay pocos estudios que hablen sobre la gran necesidad de las organizaciones en mantener bien a sus empleados, sobre todo en el tema del descanso adecuado y oportuno, por ello surge la idea de estudiar este campo. El presente estudio se lo realizó en la Corporación Nacional de Telecomunicaciones (CNT EP), con el fin de determinar los regímenes de trabajo y descanso que cada departamento presenta de acuerdo a la aplicación de la prueba de Yoshitake, la encargada de la percepción de los síntomas subjetivos de fatiga y, por otro lado, se aplicó un cuestionario diseñado por parte de la investigadora, bajo los parámetros más comunes de valoración de los elementos de descanso. La metodología tuvo un enfoque cualitativo, el tipo fue la investigación de campo de alcance descriptivo. Los resultados obtenidos fueron en la mayoría de colaboradores un nivel de fatiga leve, coinciden que el elemento de descanso más relevante del que carecen, es un lugar adecuado para el descanso intra-jornada. Se concluye que la cantidad de trabajo que deben efectuar las áreas evaluadas no está equilibrada con las pausas activas o lapsos de descanso que se deben respetar en los puestos de trabajo, además, no tienen autonomía para modificar su ritmo de trabajo, aunque esto no afecte su jornada de trabajo y tampoco su productividad.

Fault diagnosis of electric submersible pump tubing string leakage

With the rapid development of the offshore oil industry, electric submersible pumps have become more and more important. They are the main pumping equipment in oil well production and have huge advantages in terms of displacement and production costs. Due to the complex structure of the electric submersible pump, the bad working environment will cause failures. The failure of tubing string leakage is a common failure in oilfields; tubing string leakage of the electric submersible pump will reduce oil production. In order to reduce the economic loss of oil well production. This paper uses PCA and Mahalanobis distance to make the tubing Fault diagnosis of leakage. The feasibility of the algorithm is verified through experiments. The result shows that it can diagnose the failure time of pipe string leakage in advance and hence help us to reduce the maintenance cost of offshore oilfields.

Safe working hours of drivers in underground coal mine pumping stations based on intelligent prediction

Underground coal mine operation should avoid overtime or continuous working hours too long, otherwise easy to increase fatigue, increase the physiological and psychological burden of operators, resulting in accidents. How to prevent operator fatigue and unsafe behavior is the focus of current research in the industry and academia. It is an effective means to reduce physical and mental injury and accident rate caused by bad working environment to pump station drivers through reasonable arrangement of working time. In this study, the field measured physiological index data of a mine face pump station driver in Henan province, China were taken as an example, and the sensitive physiological indexes such as systolic pressure, diastolic pressure and heart rate of the underground pump station driver were calculated by using the grey predictive model GM (1,1). The warning range of each index was determined, and the safe working hours of the pump station driver was predicted. The results show that, according to the principle of minimum value triggered by threshold value of physiological indexes, the reasonable safe working hours of pump station drivers in fully mechanized mining face is 5.7 hours. The conclusion shows that the quantitative study of safe working hours provides a reference for the reasonable arrangement of working time and has a certain guiding significance for the reduction of human error and safe production.

Data Management and Visualization of Coastal Railway in Wireless Sensor Network Monitoring System

Ji, X.R., 2020. Data management and visualization of coastal railway in wireless sensor network monitoring system. In: Al-Tarawneh, O. and Megahed, A. (eds.), Recent Developments of Port, Marine, and Ocean Engineering. Journal of Coastal Research, Special Issue No. 110, pp. 219–222. Coconut Creek (Florida), ISSN 0749-0208.With the continuous progress of industrialization in our country, machinery and equipment are developing to higher frequency and larger scale. How to automate and monitor is the key parts which are widely distributed and in bad working environment in machinery and equipment. Therefore, the realization of scientific life prediction and fault diagnosis is an important issue, which is widely concerned by the industry at present. This paper studies the fusion method of equipment information data and geographic information data in the wireless sensor network (WSN), and realizes the fusion of WSN sensing data based on the proposed development environment. Then, we establish the database model and parses the data file. In addition, we realize data visualization in web environment based on the Silverlight module. Finally, the visual part of the coastal railway monitoring WSN system established in this paper is tested by function test and performance test.

New Design of All-terrain Smart Car Based on Arduino

Due to bad working environment, the flexibility and steering stability of all-terrain vehicles have become the main factors affecting the performance. Designing a new all-terrain electric vehicle is aimed at improving the stability of driving on low-attach roads and maneuverability at low speeds. Compared with traditional internal combustion engines, four-wheel-drive all-terrain vehicles have obvious advantages in vehicle motion control and optimal allocation of driving force, thus making it play an important role in all-terrain vehicle technology in the future. Within the scope of the requirements of the “Explorer” modular component equipment, by means of prototype design, assembly, commissioning, operation, the smart vehicles that can automatically and smoothly pass through the obstacles of ten different characteristics and different difficulty without any intervention are designed and completed.

Contextual Effect of Community Health Center and Other Determinants of Midwife Performance in the Implementation in the Prevention Mother to Child Transmission Counselling and Testing: A Multilevel Model Evidence

Background: High transmission of HIV from mother to child can contribute to an increase in the number of pandemic events. Transmission of HIV from mother to baby can be prevented by the PMTCT (Prevention of Mother to Child HIV Transmission) program. The purpose of this study is to analyze the implementation of PMTCT program policies by midwives. Subjects and Method: The design used in this study was observational analytic with cross sectional approach. The number of samples is 184 subjects. The sampling was done using total sampling. The independent variables included midwives' knowledge, midwife's age, job satisfac­tion, team performance, work environment, community support, training, and length of work. Meanwhile, the dependent variable is the implementation of PMTCT policies. Variable data collec­tion was performed using a questionnaire and analyzed using multilevel analysis with Stata 13. Results: The implementation of PMTCT policies increased influenced by period of working ≥8 years (b= 0.50; 95% CI= 0.61 to 0.85; p= 0.004), training ≥2 times (b= 0.44; 95% CI= -0.13 to 0.76; p= 0.005), good midwife knowledge (b= 0.65; 95% CI= 0.36 to 0.93; p<0.001), midwife satisfaction is good (b= 0.05; 95% CI= -0.21 to 0.31; p= 0.694), and midwife performance is good (b= 0.59; 95% CI= 0.25 to 0.93; p= 0.001). The implementation of PMTCT policies decreased influenced by bad working environment (b= -0.09; 95% CI= -0.36 to 0.16; p= 0.451), age ≥35 years (b= -0.51; 95% CI= -0.80 to -0.24; p<0.001), and small community support (b= -0.06; 95% CI= -0.38 to 0.25; p= 0.692). Public health ceneters have weak contextual influence on the implementa­tion of PMTCT program policies with ICC= 6.6%. Conclusion: The midwife's period of work, knowledge, training, midwife's performance, and midwife's satisfaction improve PMTCT implementation. Whereas midwives' age, work environ­ment and community support reduce PMTCT implementation Keywords : HIV / AIDS, implementation of PMTCT, multiple linear regression analysis. Correspondence : Sringatin, Dolopo Regional Public Hospital, Madiun, East Java. Jl. Raya Dolopo no.117 Dolopo, Madiun 63174, East Java. Email: sringatine22@gmail.com. Mobile: 081231683090 Journal of Health Policy and Management (2020), 5(1): 35-47 https://doi.org/10.26911/thejhpm.2020.05.01.04

Trend Korupsi Kepala Daerah; Studi pada Pemerintahan Daerah di Sumatera Utara

Korupsi merupakan suatu tindakan yang merugikan masyarakat dan negara karena akan mengganggu stabilitas negara. Tidak ada negara di dunia yang kebal bebas dari korupsi karena negara yang merupakan sebuah organisasi publik yang sangat besar di dalamnya terdapat banyak pihak yang memiliki kepentingan pribadi yang berbeda-beda. Hanya saja kadarnya yang berbeda antara satu negara dengan negara lainnya. Di Indonesia, seringkali terjadi korupsi yang melibatkan petinggi-petinggi negara termasuk kepala daerah. Salah satu provinsi dengan tingkat korupsi tertinggi di Indonesia adalah Sumatera Utara. Kajian ini dilakukan dengan metode kualitatif dan analisis deskriptif terhadap sumber data sekunder. Pengumpulan data dilakukan dengan cara studi kepustakaan (literature review) baik sumber primer maupun sekunder. Hasil penelitian menunjukkan bahwa lingkungan kerja yang buruk, budaya organisasi yang telah mengakar sejak lama, dan perbedaan kepentingan menjadi penyebab terjadinya tradisi korupsi Kepala Daerah Sumatera Utara.

Development and Application of Complete Equipment for High-speed Tunnel Boring and Bolting Machines

With the improvement of coal mining speed and mechanization level inChina, traditional tunnel boring methods can no longer meet the actualneeds. In order to solve the problems of low effciency, high labor intensity, slow tunnel boring speed, bad working environment and poor safetyin traditional tunnel boring, on the basis of analyzing the developmentand application of coal roadway tunnel boring equipment at home andabroad, complete equipment for high-speed tunnel boring and boltingmachines was developed by using the integrated technology of tunnelboring and bolting. The complete equipment for high-speed tunnel boring and bolting machines has the functions of tunnel boring and boltingsynchronization, once-tunneling, negative pressure dust removal, digitalguidance, independent cutting feed, digital cutting, safety monitoring anddata interaction, which has the advantages of safety in use, reliability andeffciency

Bearing Fault Diagnosis Using a Support Vector Machine Optimized by an Improved Ant Lion Optimizer

Bearing is an important mechanical component that easily fails in a bad working environment. Support vector machines can be used to diagnose bearing faults; however, the recognition ability of the model is greatly affected by the kernel function and its parameters. Unfortunately, optimal parameters are difficult to select. To address these limitations, an escape mechanism and adaptive convergence conditions were introduced to the ALO algorithm. As a result, the EALO method was proposed and has been applied to the more accurate selection of SVM model parameters. To assess the model, the vibration acceleration signals of normal, inner ring fault, outer ring fault, and ball fault bearings were collected at different rotation speeds (1500 r/min, 1800 r/min, 2100 r/min, and 2400 r/min). The vibration signals were decomposed using the variational mode decomposition (VMD) method. The features were extracted through the kernel function to fuse the energy value of each VMD component. In these experiments, the two most important parameters for the support vector machine—the Gaussian kernel parameter σ and the penalty factor C—were optimized using the EALO algorithm, ALO algorithm, genetic algorithm (GA), and particle swarm optimization (PSO) algorithm. The performance of these four methods to optimize the two parameters was then compared and analyzed, with the EALO method having the best performance. The recognition rates for bearing faults under different tested rotation speeds were improved when the SVM model parameters optimized by the EALO were used.

A Stable SINS/UWB Integrated Positioning Method of Shearer Based on the Multi-Model Intelligent Switching Algorithm

The accurate stable measurement of position for a shearer is a key technology in realizing an automated fully mechanized coal mining face. Using as a base of SINS/UWB integrated positioning system, the signal interference and node damage of UWB often cause an invalid integrated positioning system, because of the bad working environment of the shearer in the coal mine. Consequently, the positioning accuracy of the SINS/UWB integrated system decreases quickly, due to the drift error of SINS. Aiming at two invalid styles include partial anchor node failure and all anchor nodes failure of UWB, this paper proposes a stable SINS/UWB integrated positioning system of a shearer using the multi-model intelligent switching method based on a tightly coupled integrated model and a decision tree fault-tolerant model. First of all, the tightly coupled integrated model and the decision tree fault-tolerant model are built using measured distance and the final position of UWB, respectively. Second, the multi-model intelligent switching algorithm can be established based on the shearer Markoff movement state and residual threshold judgment of a Kalman Filter. Finally, the experimental results show that the multi-model intelligent switching fault-tolerant positioning algorithm can effectively overcome increased positioning error of the tightly coupled model and the decision tree model based on these two invalid styles. The maximum position error with the positioning model proposed in this paper is 0.93 m in 327 s, and the positioning accuracy with a multi-model intelligent switching model is much greater than that with tightly coupled integration and the decision tree fault tolerant models.

Work environment mediates a large part of social inequalities in the incidence of several common cardiovascular risk factors: Findings from the Gazel cohort

Whether working conditions contribute to social inequalities in cardiovascular disease is still a matter of debate. The present study investigates the extent to which the social gradient in the incidence of common behavioral and clinical risk factors is explained by work environment. In a well-characterized cohort of 20,625 middle-aged French civil servants followed for 25 years, social status and work environment were globally measured at baseline by combining respectively four socioeconomic indicators (education, wealth, income, occupational grade) and 25 physical, biomechanical, organizational and psychosocial occupational exposures. These 2 global measures are strongly correlated with each other (p < 0.0001), lower is social status, worse is work environment. In proportional hazard regression models adjusted for sex, age and parental cardiovascular disease, low social status increases the incidence of 9 risk factors with hazard ratios ranging from 1.12 to 1.72 while bad work environment increases the incidence of 7 risk factors with hazard ratios ranging from 1.15 to 2.02. Structural equation models to discrete-time survival analysis with moderated mediation show that bad work environment explains nearly 50% of the global effect of low social status on the incidence of the 9 risk factors (p < 0.01). This mediating effect varies substantially from one risk factor to another, explaining 32–39% of social gradients in the risk of physical inactivity, obesity, diabetes, dyslipidemia and 64–90% of gradients in the risk of hypertension, sleep complaints and depression (all p < 0.01). No significant mediating effect of work environment is found for social gradients in the incidence of non-moderate alcohol consumption and smoking. These results suggest that work environment mediates a large part of the social gradient in the incidence of several common cardiovascular risk factors, emphasizing the necessity to include working conditions in policies aimed to reduce social inequalities in health.

Tracking control and robustness study of shifting process

Heavy dump vehicles are usually working with big load changes and bad work environment, thus change the friction performance of transmission clutches, as well as great affect the shift quality seriously, which influence the vehicle performance. Many researchers developed a lot to design a useful automatic transmission control system. Using PID tracking control and Monte Carlo method, the controller based on an dynamic model was set up to analyze the shifting process of automatic transmission and its robustness in this paper．The shift process was divided into four stages, low-gear phase, torque phase, inertia phase and high-gear phase. The model presents the process from the first gear to the second gear when the torque has big change．Since the jerk and the friction work of clutch are both related to the speed of clutch which was easier to control, it was chose as the target to control the oil pressure for satisfying the requirement of shift quality．The simulation software, Maplesim and Simulink, were used to build the vehicle model and shifting controller for simulation under different working conditions, and the maximum jerk was changed from 34 m/s3 to 12 m/s3 after the optimization. In this paper the Monte Carlo has been used to quantize and evaluate the robustness of the closed-loop system for the friction coefficients and output torque of turbine variation leading by the friction feature parameters and throttle angle changed. Monte Carlo method was used to analyze the effectiveness and robustness of PID controller, which proves that it has good control effect when the throttle is ongoing minor fluctuations. When the throttle is full opening, a quadratic optimal controller based on disturbance is designed by the method of multi-objective optimization. When it changes within 20 percent, PID controller was designed under the guidance of tracking thoughts. The results also show that the controller could still obtain better effect when the friction coefficient ranged from -40 % to 40 % as well as engine torque changed from -20 % to 20 %, which indicates the robustness of controller.

BULLYING THE TEACHING PROFESSION AND EDUCATION DECLINE: WHO CARES?

This article explores the ongoing diverse changes on the psycho-social status of the teaching profession and its effect on education decline in Tanzania. Building upon review of prior (i.e., 1960s) and current status (i.e., 2000s) of the teaching profession, we propose the value– decline of the teaching profession. The study employed descriptive design and qualitative approach in data collection and analyses. In this individual study, we purposively invited and interviewed retired teachers (60 years and above) (N= 6). on-the job teachers in public primary schools (N= 9) and those in public secondary schools (N= 7) and parents who have children in public primary and secondary schools (N= 19). Our findings reveal that the existing public unromantic languages and undesirable administrative practices [e.g., force, delays in fulfilling teachers’ rights and needs, job pressures, and coercion] bully the teaching profession. In many cases, the Tanzanian society communicates negative perception towards the teaching profession. Besides, bad working environment, undesired administrative processes and low wages seem to escalate stress on teachers. The findings suggest that teachers hold negative perceptions and inferiority towards their profession and job endeavours negate effectiveness in their teaching which prompts poor education. The findings have implications for educational practitioners, policy makers and stakeholders to design a model that would redress the psycho-social status of the teaching profession. Â

Academic Staff Turnover Intention in Madda Walabu University, Bale Zone, South-east Ethiopia

AbstractIntroduction: Employee retention is one of the challenges facing several organizations in both the developed and developing countries of the world. Higher education institutions serve as storehouses of knowledge for nurturing the manpower needs of the nation. Higher education institutions are therefore more dependent on the intellectual and creative abilities and commitment of the academic staff than most other organizations. This therefore makes it critically important to retain this cadre of staff. This research was carried out to determine the prevalence of academic staff turnover intention and the factors contributing for it among Madda Walabu University academic staff.Methods: An institution based cross sectional study design was employed. Two hundred and seventeen academic staff were selected randomly and interviewed using a structured self-administered questionnaire. An in-depth interview was carried out on six academic staff. Binary and multiple logistic regression analysis was used using SPSS version 16. To have a more accurate result, triangulation of quantitative findings and an in-depth interview was used. Results: A total of 217 academicians responded to the questionnaire. One hundred sixty four, (75.6%) respondents intended to leave Madda Walabu University and 24.4% of academic staff intended to retain their position or post. A bad work environment (lack of facilities like offices, chairs, internet and toilets) was the most frequently cited reason for leaving (71.3%) followed by 63.4% due to poor management and leadership and 63.4% due to inadequate salary. Academic staff who had worked five or more years in Madda Walabu University were 4.5 times more likely to leave their institution [AOR = 4.5, 95% CI: 1.37, 14.9]. Conclusion: The prevalence of academic staff intending to leave was found to be very high and as a result, Madda Walabu University will be in an alarming state of staff turnover. Before this happens, there should be staff retention mechanisms in place to improve the work environment, management and leadership and remuneration methods to retain senior and skilled academicians.

A Study on the Removal Efficiency of Harmful Pollutantsin the Cooking Chamber

The purpose of this study is to reduce the contaminants (total volatile organic compounds (TVOCs), fine particle, odor and total airborne bacteria) during cooking process in cooking chamber, and to decrease the health damage in indoor space that has bad work environment. In order to solve the shortcomings of existing air purifiers and remove all kinds of pollutants effectively, this study focused on the development of indoor air purifiers which are made of bar type. Bio-ceramics filter which combines activated carbon and loess. The air cleaners developed with 4 measuring items including TVOCs, particulate matter, complex odor and total airborne bacteria were measured comparing their pre-service test to their post-service test after a period of time. The measured results showed higher removal efficiency of 91.02% as the concentration of TVOCs was reduced from 2,500 μg/m³ to 223 μg/m³. Second, the particulate matter removal ratio was 97.51% efficient with average concentration of 26.68 μg/m³. Third, the odor showed 95.20% reduction as air dilution ratio averaged out at 144. Last, total airborne bacteria was eliminated by over 94% showing the changeable concentration from 787 ∼814 CFU/m³ to 47∼40 CFU/m³. In addition, the removal rate of harmful pollutants is excellent, and it is expected that the environment of the existing poor cooking room will be greatly improved by using the developed air purifier in combination with the ventilation device and the stove hood.

Determinantes da Desmotivação no Trabalho: uma investigação teórica e empírica

Empresas têm se preocupado cada vez mais em criar um ambiente de trabalho satisfatório e produtivo; por outro lado, existem muitas situações desagradáveis que impedem este acontecimento, uma delas é a desmotivação. Cientificamente, diversos trabalhos exploram condições motivadoras de trabalho, mas não muitos, elucidam aspectos inerentes à desmotivação, sendo esta, um malefício, tanto para empresas como para os colaboradores. Visando explorar os determinantes da desmotivação, o presente artigo baseou-se em uma pesquisa exploratória e qualitativa por meio de análise de conteúdo, tanto em itens advindos da teoria, quanto em itens provenientes de uma pesquisa empírica realizada em uma empresa metalúrgica do sul do Brasil. Os resultados indicam haver dez determinantes de desmotivação no trabalho: remuneração insatisfatória, falta de reconhecimento, liderança ruim, insegurança no trabalho, sobrecarga de atividades, ambiente de trabalho ruim, trabalho repetitivo, relacionamento com colegas, falta de benefícios e falta de aproximação com a direção. Os quatro últimos determinantes citados não foram abordados pela teoria pesquisada, sendo estes achados, a inovação deste trabalho. A principal limitação está na quantidade de itens, supostamente existem outros, aqui não ressaltados. Os resultados contribuem para um tema ainda pouco explorado.

Organizational Intervention Plan For Automation Of SMEs: Case Study Gisitca

This study has aim to identify the main causes of a bad work environment with a high rate of turnover. The objective is to propose an intervention plan to increase the participation, commitment and employees proactivity. This job is performed with a case study with the quantitative paradigm, transversal and exploratory; the selected sample is from a PYME dedicated to automation power services. For it is based on the model of situational leadership Hersey and Blanchard, in addition to job satisfaction survey NTP213.

Plan de intervención organizacional para una pyme de automatización: caso de estudio GISITCA

This study has the aim of identify the main causes of a bad work environment with a high rate of turnover. The objective is to propose an intervention plan to increase the participation, commitment and employees proactivity. This job is performed with a case study with the quantitative paradigm, transversal and exploratory, the selected sample is from a PYME dedicated to automation power services. For it is based on the model of situational leadership Hersey and Blanchard, in addition to job satisfaction survey NTP 213.

Inverse roles of emotional labour on health and job satisfaction among long-term care workers in Japan

Emotional labour increases among long-term care workers because providing care and services to impaired elders causes conflicting interpersonal emotions. Thus, we investigated the associations between emotional labour, general health and job satisfaction among long-term care workers. We conducted a cross-sectional study among 132 established, private day care centres in Tokyo using a mail survey. The outcome variables included two health-related variables and four job satisfaction variables: physical and psychological health, satisfaction with wages, interpersonal relationships, work environment and job satisfaction. We performed multiple regression analyses to identify significant factors. Directors from 36 facilities agreed to participate. A total of 123 responses from long-term care workers were analysed. Greater emotional dissonance was associated with better physical and psychological health and worse work environment satisfaction (partial regression coefficient: −2.93, p = .0389; −3.32, p = .0299; −1.92, p = .0314, respectively). Fewer negative emotions were associated with more job satisfaction (partial regression coefficient: −1.87, p = .0163). We found that emotional labour was significantly inversely associated with health and job satisfaction. Our findings indicated that the emotional labour of long-term care workers has a negative and positive influence on health and workplace satisfaction, and suggests that care quality and stable employment among long-term care workers might affect their emotional labour. Therefore, we think a programme to support emotional labour among long-term care workers in an organized manner and a self-care programme to educate workers regarding emotional labour would be beneficial.