Hasil untuk "Industrial directories"

Shafee S. Almahi, Mohammednour Mukhtar Mohammednour Ali, Mohammed O. Adam et al.

Background: Artisanal and small-scale gold mining (ASGM) involves informal, small-scale investments in gold mining using low technology. It accounts for 39% of annual mercury emissions, in addition to cyanide emissions. Mercury and cyanide have toxic effects on health and environment, especially from direct exposure. Protective measures and knowledge are crucial for controlling these hazards. We aimed in this study to assess health impacts and knowledge about mercury and cyanide, as well as attitudes regarding personal protective equipment (PPE) among gold miners directly exposed to these toxicants. Methods: This community-based cross-sectional study was conducted at a mining site in River-Nile State using a self-structured questionnaire. The study included 269 participants, and the data were analyzed using SPSS. Descriptive statistics were employed to summarize and present the data. Results: The mean age was 31 years. Elemental mercury was the mostly used chemical (98.5%), exposure forms included hand and foot handling (64.5%) and vapor (35.5%). Cyanide was used by 7.8%, exposure forms included vapor (60%) and hand handling (50%). The most reported complaints were persistent headache (32%), numbness and tingling (10%), itching (9.5%), and tremors (7%). PPE was not used by 52.5% of participants. The average overall knowledge score was 8.7/17. PPE use was associated with higher overall knowledge and lower prevalence of headache and skin rash (p<0.05). Long daily working hours were associated with headache, while prolonged work duration was associated with numbness (p<0.05). Conclusion: The majority of participants did not use PPE and had low average overall knowledge about mercury and cyanide toxicity.

Eleonora Moraca, Francesco Zaghini, Jacopo Fiorini et al.

Background: Organizational constraints in healthcare organizations influence nursing performance and patient outcomes. Head nurses’ leadership style might mitigate these effects and improve patient safety. This study aims to evaluate the role of ethical and authentic leadership styles in the relationship between organizational constraints and errors. Methods: A nationwide multicenter cross-sectional study evaluated nurses’ organizational constraints, errors, and leadership styles. A structural equation model tested the hypothesized relationship. Results: In total, 2349 nurses working in Italian healthcare organizations were enrolled. Negative associations were found between organizational constraints and leadership styles, and a positive relation with errors. Errors were negatively associated with both leadership styles. The structural equation model showed that leadership styles partially mediated the relationship between organizational constraints and errors. Conclusion: Healthcare organizations should promote and support head nurses in the adoption of ethical and authentic leadership to mediate organizational constraint effects, reduce errors, and enhance the caring quality. The head nurse plays a crucial role within healthcare organizations in mitigating the impact of organizational constraints and enhancing patient safety. Developing a leadership style means improving nurses’ well-being and reducing clinical errors for patients.

Ivana Šutić

Homa Vaezi, Ata Ghaffari Gilandeh, Alireza Mohammadi

Background and Objective Due to the importance of hazardology strategy in the formulation of national and regional laws and guidelines, contemporary cognitive scientists specializing in hazards clarify the complexities of scientific research in this field by developing and explaining the human and natural nature of hazards through direct examination of hazardous events and scientific action. Traditional methods in disaster management are no longer sufficient for the country’s needs. It is essential to address risk reduction and disaster management strategically and fundamentally, with the participation and responsibility of all relevant sectors and organizations. This must be based on a thorough evaluation and understanding of the roots and negative impacts of all hazards and incidents, considering social factors such as meaningful and impactful public participation as a national prioritized using the quantitative strategic planning matrix (QSPM) method. Method Data collection methods include library and field research. The statistical population comprises 35 individuals, including disaster management experts, as well as professors and researchers who are working on this topic. They were selected using judgmental sampling. To propose strategies, internal and external factors were identified and evaluated. To analyze the data, the SWOT method and the QSPM method was used. Results Based on the results of the internal factors evaluation matrix, the weaknesses in the system outweigh its strengths. Similarly, based on the results of the external factors evaluation matrix, the threats to the system are greater than its opportunities. Consequently, the community-based disaster management system of Ardabil City is in a defensive position. Conclusion In order to strengthen the community-based approach, it is necessary to plan and take action to reduce weaknesses and avoid threats. Based on the results obtained from the QSPM method, 13 strategies were ultimately obtained.

Dolf van der Beek, Wouter Martinus Petrus Steijn, Jop Groeneweg

In this article, the authors apply the intervention mapping (IM) protocol to develop safety leadership training for a rail infrastructure maintenance company. The IM protocol helps to create an evidence-based intervention in a structured way, based on concrete evidence. The application of IM within the occupational safety domain is limited, a research gap that this article bridges with the development and testing of a safety leadership intervention to promote safety behavior among managers. The company was positively and actively engaged in the training program thanks to the IM protocol. The local support group took full advantage of the opportunities to provide input during the development of the training’s various components. Despite this, interpersonal problems within the leadership team itself, such as a lack of psychological safety, were not identified during the needs assessment. These issues had an impact on the overall effectiveness of the training, as they manifested during the training when managers met physically for the first time in several years (due to the coronavirus). Our IM protocol will be adjusted accordingly for future applications, and we hope that sharing our experiences will enable fellow researchers to avoid this problem.

L. A. Zhukov, A. L. Kuzminov

Introduction. The research of energy-absorbing element made of aluminum alloy, which is part of the passive safety system of a racing car, is carried out in the article. Designing and testing of the energy absorbing element was performed within the framework of the technical regulations of the international student engineering competition Formula SAE. Formula SAE is an engineering competition of student teams organized by the Society of Automotive Engineers (SAE).The design and analysis of the dynamic performance of the research object were performed in the computer-aided design system (CAD) ANSYS® Workbench SpaceClaim and ANSYS Explicit Dynamics.Problem Statement. The task of this research is to analyze the effectiveness of the use of aluminum alloy as the main material for the manufacture of the energy-absorbing element of the passive safety system of the car.Theoretical Part. Eleven structures of different shapes (structures) made of aluminum alloy 6063 were developed as promising models of energy-absorbing elements. A simulation crash test (frontal impact) was carried out, as a result of which it was possible to study the flow of deformation in the structure, to find the main zones of stress and load. This study of energy-absorbing elements can be used to justify the choice of material for the manufacture of passive car safety elements by car manufacturers and machine builders.Conclusions. The result of the research is a simulated process of destruction (or deformation) of the energy-absorbing element responsible for the absorption of energy in case of a frontal impact. The dependence of the manufacturing material and the shape of the energy absorbing element on the qualitative and quantitative characteristics of the passive car safety system has been investigated. Loads and stresses appearing in the structure of energy absorbing element have been studied. The efficiency of using aluminum alloy in promising car passive safety elements has been proved. Simulations of crash-tests showed that the use of progressive materials of construction elements of passive safety of vehicles, namely, aluminum alloys in an optimized (as a result of modeling) performance allows you to achieve high levels of protection of the pilot and passengers of the vehicle.The analysis of the absorbed energy value distribution allows revealing the direction for further improvement of the car passive safety systems. The influence of energy absorbing element manufacturing material on the processes occurring during frontal impact has been established. A universal technology of crash-testing (modeling of impact processes) of an energy absorbing element with a rigid obstacle has been developed in Ansys software. The percentage ratio (redistribution) of energy absorbed by frontal elements of passive safety of the car has been investigated.

Parivash KARIMI, Farzin MOLLAZADEH, Hossein HABIBZADEH et al.

Introduction: Optimal nursing care is an important indicator of the quality and effectiveness of the health care system and is associated with professional commitment. This study aims to investigate the predictive power of adherence to nurses' care behaviors from patients' perspectives by nurses' professional commitment working in Urmia educational hospitals in 2018-2019. Methods: This descriptive-cross sectional study was conducted on 100 nurses working in educational hospitals affiliated to Urmia University of Medical Sciences in 2018-2019 who were selected by stratified random sampling. Demographic information questionnaire, nurses' professional commitment questionnaire (NPCS), and nurses' caring behavior inventory (CBI) were used for data collection. The data were analyzed by SPSS 16 software using descriptive and inferential statistical methods, correlation and stepwise regression. Results: The results of this study showed that there is a direct relationship between professional commitment and adherence to caring behaviors (r = 0.31 and p = 0.02). Moreover, dimensions of nurses 'professional commitment (perception of nursing, satisfaction with the nursing profession, getting involved with the nursing profession, and self-sacrifice for the nursing profession) account for 26% of the variance in adherence to nursing care behaviors. The dimension of nurses' professional commitment has the most significant effect after self-sacrifice for the nursing profession (P = 0.029, B = 0.30). Conclusion: Considering the role of professional commitment on the level of adherence to nurses' caring behaviors, it is essential to recognize the factors affecting nurses’ professional commitment and make comprehensive planning to enhance the professional commitment of nurses.

Bryan Weichelt, Richard Burke, Emily Redmond et al.

Studies across the last few decades have consistently found farmers and farmworkers at an elevated risk of death by suicide compared to other occupational groups in the United States. Still, there is currently no comprehensive national surveillance system for agricultural-related injuries or suicides. For this study, we analyzed Wisconsin death certificate data from 2017 and 2018 to identify the burden of suicide among farmers and farmworkers. In 2017 and 2018, 44 farm-related suicides were identified, or 14.3 per 100,000 farmers and farmworkers. The median age of victims was 51.5 ± 20, and six (13.6%) were female. As these suicide cases were cross-checked, we found that none were identifiable solely from previously published news media or obituaries, indicating: (1) a clear need for a multi-sourced suicide data approach and inter-agency collaborations for future research, and (2) the need for a deeper investigation into the reporting of farm-related suicides. These data are necessary for informing state and local level policy, resource prioritization, and the evaluation of intervention efforts.

Luga Rizqi Cristenzein, Kadek Tresna Adhi

Introduction: Study related to work stress is usually more focused on the industrial sector. Meanwhile, workers in other sectors such as the government organization also have the potential to feel stressed due to their job. During the COVID-19 (Coronavirus Disease) pandemic, Health Office is one of the main stakeholders in handling and preventing COVID-19. The COVID-19 pandemic can cause work stress due to unachieved health programs and huge demands to develop programs related to this pandemic. This study analyzed the relationship between individual factors, work factors, and factors outside of work with level of work stress among Health Office employees. This study is expected to be able to analyze work stress and its determinant as early as possible. Methods: This study was a cross-sectional study using the Depression, Anxiety, Stress Scale 42 (DASS-42) and NIOSH (National Institute for Occupational Safety and Health) Generic Job Stress Questionnaire instrument. This study was conducted at the Public Health Office Bogor Regency April 2021. This study used total sampling method on employees of the Public Health Office Bogor Regency with total sample collected of 135 respondents. Data analysis in this study was performed using multiple logistic regression. Results: 86.67% of respondents did not experience work stress, 5.93% of respondents had mild work stress, and 7.41% of respondents experienced moderate work stress. Moreover, workload (p = 0.0001) and social support (p = 0.011) had a significant relationship in increasing work stress. Conclusion: Workload was the most dominant variable affecting work stress in which workers who had high subjective workload were 33.63 times more stressful compared to workers who had the appropriate workload. Prevention of occupational stress can be done by adjusting workloads and building a good social environment between colleagues. Keywords: factors outside of work, health office, individual factors, work factors, work stress

Gobivel Kathirvel, Vijaysekar Krishnaraju Srinivasaraju, Prabhakaran Gopalakrishnan

Titanium alloys are used as an aerospace material due to their inherent properties such as high strength to weight ratio, corrosion, and fracture resistance. However, the low conductivity and reactivity towards plastic deformation causes these materials to be difficult to cut category. The prediction of various parameters like chip formation and actual cutting forces are important factors for better machinability which involves lot of resources. To overcome such issues, this work proposes three-dimensional FE approach to simulate the machinability behavior of Ti-6Al-4V especially on conventional turning. The impact of cutting speed and feed rate on the cutting force, thrust force, feed force and surface roughness were analyzed experimentally for various conditions. The predicted machining forces showed strong correlation with the experimental results and the effective von mises stress were examined.

Natsu Sasaki, Kotaro Imamura, Mayumi Kataoka et al.

Objectives: This study aimed to investigate workplace measures implemented in response to COVID-19 during the outbreak in Japan from T1 (March 2020) to T2 (May 2020), focusing on the disparities by company size and industry. Methods: A longitudinal study was conducted using a cohort of full-time employees, starting with the baseline online survey on March 19–22, 2020 (T1). An online follow-up survey was conducted on May 22–26, 2020 (T2). The McNemar test was used to assess differences between T1 and T2 in the proportion of implemented measurements. Analysis of covariance was performed to compare the differences in the number of implemented measures across groups classified by company size or industry, adjusting for sex and age. Results: A total of 1,032 participants (response rate: 72.6%) completed the follow-up questionnaire. The final analytic sample comprised n=987. The workplace measures involving the delivery of information on COVID-19 were 88.4% at T2, which significantly increased from T1 (increased 8.6%, p<0.001). As well as the T1 survey, respondents in the smaller companies reported a significantly smaller number of measures, but the disparity compared to large companies became small. The same trend was observed in the type of industry. Conclusions: This study showed an improvement in the implementation of preventive measures in response to COVID-19 in the workplace in Japan through the first wave outbreak. The disparity between companies of different sizes and from different industries decreased at T2, suggesting that company groups that initially implemented fewer measures caught up.

А.А. Плиска

Irina V. Kuznetsova

Юрій Євгенович Репіло, Андрій Іванович Мостовий

У науковій статті узагальнено основні загрози національній безпеці, надано характеристику операції Об’єднаних сил на сході України, прикордонній безпеці та розкрито особливості застосування сил та засобів прикордонних загонів Державної прикордонної служби України в районі проведення зазначеної операції. Узагальнено комплекс заходів, що проводяться прикордонними загонами Державної прикордонної служби України для протидії загрозам і викликам, що негативно впливають на стан прикордонної безпеки. Надано класифікацію кодів ускладнення обстановки та систематизовано за важливістю значень цифрові індекси кожного типу можливих небезпек на ділянці відповідальності прикордонних загонів. Встановлено, що в умовах ускладнення обстановки функціонування прикордонних загонів в районі операції об’єднаних сил буде характеризуватись «зеленим» інформаційним кодом за рівнями ускладнення від «4» до «1», де: «4» – для реагування достатньо чергових сил та засобів прикордонного загону; «3» – потребує застосування резерву першої черги та чергових сил та засобів сусідніх прикордонних загонів; «2» – потребує застосування резерву другої черги та резерву першої черги сусідніх прикордонних загонів; «1» – потребує застосування усіх наявних ресурсів, а також резервів сусідніх прикордонних загонів.

Tria Melissa, Endang Dwiyanti

Fatigue is a subjective feeling that everyone feels. Work fatigue may occur due to various factors such as age, years of working life, nutritional status, and noise. The purpose of this study was to know the relation between the factors cause work fatigue at fish feed production machine operator. This research was descriptive observational with cross-sectional design. Population in this research is all worker machine operator of fish feed production who worked in the same shift at the time of the research. Samples were taken with a total sampling principle that all operator’s workers from production area who totaled 24 people. The variables were age, years of working life, nutritional status, noise, and subjective work fatigue. The results showed that most of the respondents were over 40 years old, had a working period over 10 years, had normal nutritional status, worked in the work area exceeding the noise treshold limit value and had moderate fatigue. The conclusions of this study are age, years of working life, and nutritional status has no relationship causing fatigue. Noise can be one of the factor of the occurrence of work fatigue because (54.2%) workers who work in the work area exceeding the standardize had a moderate fatigue. Keywords: noise, nutritional status, worker, work fatigue

A. A. Korotkiy, E. V. Marchenko, A. V. Panfilov

The article presents the examination results in order to establish technical reasons for wire breaks of the carrier-traction rope on the passenger cableway. It was established that the main causes of breakage of wires were: a defect in the form of undulations, arising from the unequal distribution of tensile load be-tween the rope strands. Corrosion on the defective area indicates on the improper interaction between the strand ropes in undulation area, and the squeezingof the inner ribbon and the core all over the splice. The carried out examination has identified that the dam-age of carrier-traction rope strands is a con-sequence of improper use of cable cars, with regard to the failure to conduct carrier-traction rope audit, and notperforming the periodic application ofspecial lubricants on the whole rope and on the splice. Repair of the above mentioned carrier-traction rope can be done by replacing the defective strand or by replacing the defective part by the qualified technology manufacturer.

Stanislav LICHOROBIEC, Karla BARČOVÁ, Tomáš DORAZIL et al.

This article documents the development of the noninvasive use of explosives during the destruction of ice mass in river flows. The system of special sequentially-timed charges utilizes the increase in efficiency of cutting charges by covering them with bags filled with water, while simultaneously increasing the effect of the entire system of timed charges. Timing, spatial combinations during placement, and the linking of these charges results in the loosening of ice barriers on a frozen waterway, while at the same time regulating the size of the ice fragments. The developed charges will increase the operability and safety of IRS units.

Vadym I. Sliusar, Oleksandr O. Trotsko

In the article influence of nonlinear frequency modulation on providing of connection with high-speed unmanned aerial vehicles (UAV) at the use of ortogonal frequency discrete modulation (OFDM) is analyzed. For the detailed research of spectral distortions the mathematical design of UAV motion is conducted. In the package Mathcad the series of samples in an output voltage analog-to-digital converter is synthesized and signal subcarriers feedbacks on filter outputs of fast Fourier transform at different UAV flight speeds are received.