scholarly journals Work Ergonomic Analysis: Application of a Postural Study on the Oysters Cultivation

2019 ◽  
Vol 21 (1) ◽  
pp. 15
Author(s):  
Giselle Mari Speck ◽  
Cristhiane Guertler ◽  
Walter Quadros Seiffert ◽  
Lizandra Garcia Lupi Vergara ◽  
Eugenio Andrés Díaz Merino
Keyword(s):  
Local Development ◽  
Cervical Region ◽  
In Situ Observation ◽  
Entire Body ◽  
Average Risk ◽  
Analysis Application ◽  
Ergonomic Analysis ◽  
Rapid Entire Body Assessment

O cultivo de moluscos marinhos é uma atividade de grande importância no Brasil proporcionando a geração de emprego e renda para pescadores artesanais e comunidades pesqueiras, contribuindo para o desenvolvimento local.  Entretanto, este tipo de cultivo ainda é realizado de forma bastante artesanal com intensa utilização de mão de obra. Diante disso, este estudo teve por objetivo realizar uma descrição das posturas e movimentos de maricultores durante a realização da atividade de classificação de ostras. Participaram voluntariamente dez funcionários de uma fazenda marinha no município de Florianópolis, SC. Para análise da postura e movimentos, utilizou-se o método Rapid Entire Body Assessment (REBA) e método NIOSH juntamente com a observação in loco e entrevistas com os maricultores. A tarefa de classificação de ostras  apresenta médio risco de lesão ou doenças ocupacionais, principalmente na região cervical e membros superiores, pois é desenvolvida com acentuada flexão de cabeça e ombros, o que exige muito da musculatura envolvida para manter a postura e realizar movimentos repetitivos. Muitos trabalhadores apresentam dores musculares nos ombros, lombar, mãos, punhos e dedos. Adaptações simples e economicamente viáveis devem ser adotadas, pois através da avaliação ergonômica é possível realizar intervenções que estão ao alcance dos trabalhadores. Necessita-se transmitir os conhecimentos para que os trabalhadores tenham consciência das posturas que devem adotar na realização desta atividade aquícola e assim promover uma melhor qualidade de vida desta população.Palavras-chave: Aquicultura. Ergonomia. Saúde do Trabalhador.AbstractThe cultivation of marine mollusks is an activity of great importance in Brazil, providing employment and income for artisanal fishermen and fishing communities, contributing to local development. However, this type of cultivation is still carried out in a very handmade way with intense use of labor. The objective of this study was to describe the postures and movements of fish farmers during the oyster classification activity. Ten employees of a marine farm participated in the municipality of Florianópolis, SC. For the analysis of the posture and movements, the Rapid Entire Body Assessment (REBA) method and NIOSH method were used along with in situ observation and interviews with the workers. The task of oysters classification  presents an average risk of injury or occupational diseases, especially in the cervical region and upper limbs, as it is developed with marked flexion of the head and shoulders, which requires a lot of the muscles involved to maintain the posture and perform repetitive movements. Many workers have muscle pains in the shoulders, lower back, hands, wrists and fingers. Simple and economically viable adaptations should be adopted, because through ergonomic evaluation it is possible to carry out interventions that are within the reach of the workers. It is necessary to transmit  knowledge so that the workers are aware of the postures that they must adopt in the accomplishment of this aquaculture activity and thus to promote a better quality of life of this population.Keywords: Aquaculture. Ergonomics. Occupational Health.

In-Situ Observation of Chemical Vapor Deposition of Thin Sige Films by Optical Reflection Interferometry

1994 ◽  
Vol 375 ◽  
Author(s):  
G. Ritter ◽  
B. Tillack ◽  
M. Weidner ◽  
F. G. Böbel ◽  
B. Hertel
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Deposition Process ◽  
Ex Situ ◽  
In Situ Observation ◽  
Optical Reflection ◽  
Initial Stage

AbstractChemical Vapor Deposition of Si1-x Gex – films on Si (100) and of polycrystalline Si1-x Gex, layers on SiO2 – coated substrates have been performed at a pressure of 200 Pa in the temperature range of 500°C – 800°C, correspondingly. To observe the growth process and to characterize the growing thin films at deposition conditions an optical reflection interferometer (PYRITIERS) has been used. Comparing the data obtained at growth temperature with ex- situ measurements by spectroscopic ellipsometry the temperature dependence of optical constants of SiGe films have been evaluated. The reflectivity measurements during the deposition process allow to study the quality of the heteroepitaxial film, even in the initial stage of epitaxial growth.

scholarly journals The risk of ergonomic injury across surgical specialties

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0244868
Author(s):  
Ksenia A. Aaron ◽  
John Vaughan ◽  
Raghav Gupta ◽  
Noor-E-Seher Ali ◽  
Alicia H. Beth ◽  
...  
Keyword(s):  
Musculoskeletal Pain ◽  
Entire Body ◽  
Or Education ◽  
Surgical Subspecialty ◽  
Experienced Pain ◽  
Wide Range ◽  
Minimum Score ◽  
Rapid Entire Body Assessment ◽  
Ergonomic Risk

Objective Lack of ergonomic training and poor ergonomic habits during the operation leads to musculoskeletal pain and affects the surgeon’s life outside of work. The objective of the study was to evaluate the severity of ergonomic hazards in the surgical profession across a wide range of surgical subspecialties. We conducted intraoperative observations using Rapid Entire Body Assessment (REBA) score system to identify ergonomic hazards. Additionally, each of the ten surgical subspecialty departments were sent an optional 14 question survey which evaluated ergonomic practice, environmental infrastructure, and prior ergonomic training or education. A total of 91 surgeons received intraoperative observation and were evaluated on the REBA scale with a minimum score of 0 (low ergonomic risk <3) and a maximum score of 10 (high ergonomic risk 8–10). And a total of 389 surgeons received the survey and 167 (43%) surgeons responded. Of the respondents, 69.7% reported suffering from musculoskeletal pain. Furthermore, 54.9% of the surgeons reported suffering from the highest level of pain when standing during surgery, while only 14.4% experienced pain when sitting. Importantly, 47.7% stated the pain impacted their work, while 59.5% reported pain affecting quality of life outside of work. Only 23.8% of surgeons had any prior ergonomic education. Both our subjective and objective data suggest that pain and disability induced by poor ergonomics are widespread among the surgical community and confirm that surgeons rarely receive ergonomic training. Intraoperative observational findings identified that the majority of observed surgeons displayed poor posture, particularly a poor cervical angle and use of ergonomic setups, both of which increase ergonomic risk hazards. This data supports the need for a comprehensive ergonomic interventional program for the surgical team and offers potential targets for future intervention.

scholarly journals MENTAL WORKLOAD AND ERGONOMIC ANALYSIS ON PRODUCTION DEPARTEMENT AT PT. XYZ

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Pashya Yafi Dhiya ◽  
Devi Maulida Rahmah
Keyword(s):  
Mental Workload ◽  
Upper Body ◽  
Entire Body ◽  
Mental Work ◽  
Task Load ◽  
Work Posture ◽  
Nasa Tlx ◽  
Processing Division ◽  
Ergonomic Analysis ◽  
Rapid Entire Body Assessment

This research aims to identify mental workload on  NASA-TLX for mental workload and packaging division and work posture on processing division at PT. XYZ. This research uses RULA and REBA methods for work posture. NASA-TLX (Task Load Index) is  used to determine mental work in packaging division. RULA (Rapid Upper Limb Assessment) is used to determine the upper body musculoskeletal disorders (MSDs) injury in the process of production (which consists of weighing and processing station) at PT. XYZ and REBA (Rapid Entire Body Assessment) is used to determine entire body MSDs injury in the production process. Those methods are applied to indicate that the workers are in fact working above the safety limit. Based on NASA-TLX method, it is clear that 21 of 30 workers feel that the work is very heavy. Another case, two unusual postures are found, one is determined by the action level of worker who lifting 20 kgs sack of powder is 10, so the action level of REBA in this case is hardly dangerous. The other one is determined by a worker who entering an ingridient to the machine, weight of the ingridient is 17,05 kgs. It means more than 10 kgs, and thus it can affect body posture. Keywords: Ergonomics, NASA-TLX, REBA, RULA

Highly Purified Glucose Isomerase Crystals Under Microgravity Conditions Grow as Fast as Those on the Ground Do

2020 ◽  
Author(s):  
Yoshihisa Suzuki
Keyword(s):  
Growth Rates ◽  
Glucose Isomerase ◽  
Spiral Growth ◽  
Protein Crystals ◽  
In Situ Observation ◽  
Lateral Growth ◽  
Impurity Incorporation ◽  
Microgravity Conditions

<p>Suppression of convection flows (solute transportation) and that of impurity incorporation into crystals seem to be the main reasons why the quality of protein crystals becomes better under microgravity conditions, whereas each precise mechanism has not been completely clarified yet. We tried to clarify the former reason by the in-situ observation of spiral growth hillocks on the {110} faces of highly purified glucose isomerase (GI) crystals under microgravity conditions and on the ground. Lateral growth rates <i>V</i><sub>lateral</sub> of a spiral hillock on the {110} face of a glucose isomerase crystal in situ under microgravity conditions and step velocities <i>V</i><sub>step</sub> of the same configuration on the ground took similar values as far as the maximum values are compared each other. This similarity indicates there are less influences of the convection flows on the growth rates of protein crystals contrary to conventional expectations.</p>

Evaluasi Risiko Ergonomi dengan Analisis Postur Tubuh untuk Mengurangi Keluhan Musculoskeletal Disorders pada Pekerja

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Cindy Laurinda
Keyword(s):  
Main Product ◽  
Industrial Sector ◽  
Entire Body ◽  
Processing Industry ◽  
Posture Analysis ◽  
Work Posture ◽  
Body Map ◽  
Rapid Entire Body Assessment ◽  
A Company

The economy is an important thing in a country, without an economy, a country can't run. The economy of a country is certainly supported by an industrial sector, one of which is the metal and iron processing industry. Workers in the company will certainly have regulations that will regulate the workforce when doing work at the company. PT. Smart Teknik Utama Bandung is a company engaged in the processing of metal, iron, and others that produces various products derived from iron and plates. The main product of this company is Roding China. The company has a problem, namely the work posture of the employees on the production floor. Wrong work posture results in MSDs complaints among workers which reduce the quality of workers. The purpose of this research is to analyze the work posture used by the workforce is already ergonomic or not. Work posture analysis used the Nordic Body Map method, Ovako Work Posture Analysis, and Rapid Entire Body Assessment. The analysis was carried out on 12 employees from 7 workstations. With the analysis carried out, it is known that all employees have MSDs complaints which are caused by incorrect and unergonomic work postures, then suggestions are given to improve work posture to reduce MSDs complaints experienced by employees.

scholarly journals Health in the rural environment: a postural evaluation of milking workers in Brazil

2018 ◽  
Vol 27 (3) ◽  
pp. 35004 ◽  
Author(s):  
Claudilaine Caldas de Oliveira ◽  
Antônio Augusto de Paula Xavier ◽  
Leandra Ulbricht ◽  
Antônio Renato Pereira Moro ◽  
Marjorie Maria Belinelli
Keyword(s):  
Dairy Farm ◽  
Musculoskeletal Symptoms ◽  
Entire Body ◽  
High Prevalence ◽  
Prevalence Of Pain ◽  
High Level ◽  
Two Stages ◽  
Rapid Entire Body Assessment ◽  
Level Of Effort

This study aims to evaluate the postures of workers during the activities of milking and handling dairy cattle in the Community of Campo Mourão Municipalities, in Brazil. To identify the presence of musculoskeletal symptoms, the study was divided into two stages: first, we identified the demographic profile of the sample through a questionnaire and then obtained information about problems with pain and discomfort by applying the Standardised Nordic Questionnaire. The second stage consisted of an analysis of the activity of six farms to identify the natural ergonomic risk factors. To evaluate and record the postures, we used the REBA method (Rapid Entire Body Assessment) to correlate the prevalence of pain/discomfort with the positions adopted by workers in a production system. The study demonstrated that 87% of workers had pains and showed that the main postures throughout the workday are trunk tilting and bending, characterizing a job that requires awkward postures, with a high level of effort, in most activities, which may contribute to the development of musculoskeletal injuries for these workers. The REBA method also pointed out a high level of risk. During their routine, dairy farm workers adopt harmful positions that cause a high prevalence of pain/discomfort. Ergonomic recommendations are thus proposed to reduce these awkward postures of workers and consequently improve their quality of life at work.

scholarly journals Pengendalian Kualitas Produk Lembaran Serat Semen Rata di Pt Bakrie Building Industries Dengan Metode DMAIC

2010 ◽  
Vol 1 (2) ◽  
pp. 1175
Author(s):  
Ho Hwi Chie ◽  
Muhammad Zaky Ambadar ◽  
Wahyu Hidayat ◽  
Sutan Rieza Abdillah
Keyword(s):  
Product Quality ◽  
Flow Diagram ◽  
Entire Body ◽  
Sigma Level ◽  
Calculation Results ◽  
Break Up ◽  
Materials Used ◽  
High Level ◽  
Rapid Entire Body Assessment

Producing quality products to match customer expectations is an important thing that needs to be done by every company that produces any product, to gain public appreciation and sell their products on the market. Therefore companies need to have a strong commitment in improving and maintaining product quality. The study related to product quality of flat sheets of fiber cement or more commonly known as versaboard produced by PT. Bakrie Building Industries show that there are 9 (nine) types of defects that can degrade the quality of production. Most dominant defects occured on 3 (three) versaboard products, the crack (2.03%), broken end (0.80%) and side trim (0.35%) during observation. Sigma level of products is obtained at 4:16 at a cost saving of due to defects of Rp.14.645.600, 00. Defects that occur tend to be caused by methods, people, machines, and materials used. Efforts to reduce the level of defects are done by making the SOP of the break-up method, and manufacture of cutter flow diagram. REBA score calculation results (Rapid Entire Body Assessment) in the removal and break-up reduction is obtained at 8 with a high level of risk should lead to improving the position of the operator using the Rapid Entire Body Assessment (Reba) so that operators can work more carefully and responsibly.. 

Highly Purified Glucose Isomerase Crystals Under Microgravity Conditions Grow as Fast as Those on the Ground Do

2020 ◽  
Author(s):  
Yoshihisa Suzuki
Keyword(s):  
Growth Rates ◽  
Glucose Isomerase ◽  
Spiral Growth ◽  
Protein Crystals ◽  
In Situ Observation ◽  
Lateral Growth ◽  
Impurity Incorporation ◽  
Microgravity Conditions

<p>Suppression of convection flows (solute transportation) and that of impurity incorporation into crystals seem to be the main reasons why the quality of protein crystals becomes better under microgravity conditions, whereas each precise mechanism has not been completely clarified yet. We tried to clarify the former reason by the in-situ observation of spiral growth hillocks on the {110} faces of highly purified glucose isomerase (GI) crystals under microgravity conditions and on the ground. Lateral growth rates <i>V</i><sub>lateral</sub> of a spiral hillock on the {110} face of a glucose isomerase crystal in situ under microgravity conditions and step velocities <i>V</i><sub>step</sub> of the same configuration on the ground took similar values as far as the maximum values are compared each other. This similarity indicates there are less influences of the convection flows on the growth rates of protein crystals contrary to conventional expectations.</p>

scholarly journals How to perform an ergonomic analysis of a workstation

2019 ◽  
Vol 7 (12) ◽  
pp. 474-491
Author(s):  
Carlos Domingues Ascate Júnior ◽  
Mariana Sarmanho de Oliveira Lima ◽  
Jonas Gomes da Silva
Keyword(s):  
Assembly Line ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Entire Body ◽  
Average Risk ◽  
Risk Minimization ◽  
Pcb Assembly ◽  
Work Related ◽  
The Face ◽  
Ergonomic Analysis

In the face of numerous complaints about upper limb pain of employees involved with a printed circuit board (PCB) assembly line, there was a need to assess the level of Work-Related Musculoskeletal Disorders (WRMD). To solve this problem, the research aimed to perform an ergonomic analysis in a workstation of an assembly line of a company X of the Manaus Industrial Pole (PIM). Therefore, the risks of WRMD were evaluated and the problems faced were diagnosed, to propose improvement actions to adapt the work environment to the workers. With the aid of the Ergonomic Work Analysis (EWA) method and the Rapid Entire Body Assessment (REBA) method for the assessment of the risks of WRMD, it was found that the operator was subjected to an average risk of WRMD and that the intervention for resolution or risk minimization was required. The operator's complaints were a pain in the shoulders, arms, and neck. In the end, five recommendations were suggested to company managers to solve or mitigate the problem.

Study on Settlement after Construction for the High Loess-Filled Embankment

2015 ◽  
Vol 744-746 ◽  
pp. 613-616 ◽  
Author(s):  
Ying Hu ◽  
Yu Wen Ju ◽  
Wen Zheng Wang ◽  
Xue Mei Zheng
Keyword(s):  
Laboratory Tests ◽  
Soil Layer ◽  
Dry Density ◽  
In Situ Observation ◽  
Close Attention ◽  
East Central ◽  
Time Observation ◽  
Observation Results

Engineers and researchers pay close attention to high-filled embankment project with loess as its main filler. In order to study its characteristics and settlement rules, a series of laboratory tests on the fillers and in situ observation based on the actual project located in the east central of Taiyuan were made. These work resulted in some settlement curves for the each soil layer. Then some basic physical properties of loess were get at the same time. Observation results were analyzed and the influence of different factors on the settlement curves were discussed.After considering various factors,effective construction suggestions were raised to control the dry density and moisture content in order to decrease the settlement of embankment and improve the quality of the construction.

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