scholarly journals Procedimento de segurança para manuseio de nanomateriais em laboratórios

2021 ◽  
Vol 1 (1) ◽  
pp. 2-15
Author(s):  
Samuel Jônatas de Castro Lopes

Introdução: a nanotecnologia vem propiciando uma revolução tecnológica na engenharia mundial. Dentre os nanomateriais mais utilizados, os nanotubos de carbono (NTC) se destacam por suas diversas propriedades excelentes e específicas. Entretanto, as implicações a saúde de usuários que manipulam os nanotubos de carbono estão longe de serem compreendidas e cercadas de incertezas. Métodos: estudo exploratório-descritivo, baseado em uma breve contextualização acerca dos nanotubos de carbono e da nanotoxicologia, em busca de compreender as principais características morfológicas deste material, e os principais danos causados à saúde dos trabalhadores. Objetivo: propor um procedimento de segurança para manuseio de nanomateriais em laboratórios. Resultados: os laboratórios que manipulam esse tipo de tecnologia devem ser dotados de instalações específicas e possuir procedimentos operacionais que busquem controlar a exposição e a contaminação aerotransportada. Conclusão: a compatibilização da cadeia comercial e a segurança do trabalho devem ser consideradas para nanomateriais, ou seja, o diálogo entre fabricante, fornecedor, usuário final e profissionais de saúde e segurança do trabalho (SST) é de suma importância para o desenvolvimento da nanotecnologia segura.   Introduction: nanotechnology has led to a technological revolution in world engineering. Among the most used nanomaterials, carbon nanotubes (CNT) stand out for their excellent and specific properties. However, the health impacts of users who manipulate carbon nanotubes are far from being understood and surrounded by uncertainties. Methods: exploratory-descriptive study based on a brief contextualization about carbon nanotubes and nanotoxicology, in an attempt to understand the main morphological characteristics of this material, and the main damages caused to workers' health. Objective: a safety procedure for handling nanomaterials in laboratories was proposed. Results: Laboratories that handle this type of technology must be equipped with specific facilities and have operational procedures that seek to control exposure and airborne contamination. Conclusion: the compatibility of the commercial chain and work safety must be considered for nanomaterials, that is, the dialogue between manufacturer, supplier, end user and and occupational health and safety professionals is of paramount importance for the development of safe nanotechnology.

2018 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Siti Nur Rochimiwati ◽  
Sukmawati Sukmawati ◽  
Budiman Budiman

Background : flavor enhancing food additives are often added as a flavor enhancer known as MSG that exceed the dose . if the addition of the additive is often done to cause dependence , so it will pose a health hazard to the consumer , such as stomach disorders, allergies , hypertension , asthma , cancer , diabetes , and lower intelligence. Most housewives do not know the information would adversely affect health. Objective : This study aims to describe the level of knowledge of the use of monosodium glutamate ( MSG ) housewife in backwoods village sauleya timbuseng Polongbangkeng northern districts Kab.Takalar. Methods : This is a descriptive study. samples are all housewives in the hamlet village sauleya timbuseng Polongbangkeng northern districts Kab. Takalar , who meet the criteria as much as 49 people . Data on the use MSG knowledge samples obtained by the interview method which uses a questionnaire instrument.the data presented in the from of frequency distribution graphic and narrative. Result : Results of research on the use of knowledge MSG housewives generally less category as many as 25 ( 51.0 % ) , use of MSG housewives generally can not be tolerated as many as 36 ( 73.5 % ). Conclusion : Knowledge of the use of MSG housewife classified as less and use MSG can not be tolerated.


2020 ◽  
Vol 9 (6) ◽  
pp. 2107
Author(s):  
Briyan Artha Ginting ◽  
I Wayan Suana

Productivity is the ability to achieve certain tasks in accordance with predetermined standards. Companies must create safe work environment to motivate employees so that they can increase overall company productivity. Purpose of the study is to explain the effect of work discipline, occupational health and safety on the work productivity of Sariasih Garment employees with 51 people as samples, using saturated sample method. Data collected through observation, interviews and questionnaires and analyzed by multiple linear regression. Based on the results, work discipline, occupational health and work safety have  positive and significant effect on employee work productivity. It is expected that company pays attention to employees' compliance with regulations in doing their jobs and the company is able to create a safe, comfortable and clean work environment. Employees have enthusiasm and protection while working so that employees are able to increase work productivity in order to create maximum work results. Keywords: work productivity, work discipline, work health and safety


2005 ◽  
Vol 123 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Rodolpho Repullo Junior ◽  
Jorge da Rocha Gomes

CONTEXT: Many authors have emphasized the importance of worker strength through unionized organizations, in relation to the improvement of working procedures, and have reported on the decisiveness of labor movement actions in achieving modifications within the field of work and health. OBJECTIVE: To describe the ways in which Brazilian unions have tried to intervene in health-illness and work processes, identifying the existence of commonality in union actions in this field. TYPE OF STUDY: Qualitative study. SETTING: Postgraduate Program, Environmental Health Department, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, Brazil. METHODS: Union health advisers and directors were interviewed. Documents relating to union action towards protecting workers' health were collected and analyzed. RESULTS: Unions articulate actions regarding workers' health of a technical and political nature that involve many aspects and high complexity. These have been divided into thematic categories for better analysis. DISCUSSION: Union actions regarding workers' health in Brazil are restricted to some unions, located mainly in the southern, southeastern and northeastern regions of the country. Nonetheless, the unions undertaking such actions represent many professions of great economic and political importance. CONCLUSIONS: The recent changes in health and safety at work regulations, recognition of professional diseases, creation of workers' health services and programs within the unified health system, and operational improvements in companies' specialized safety and occupational medicine services, all basically result from union action. There is commonality of union action in this field in its seeking of technical and political strengthening for all workers and their general and local representation. This has the objective of benefiting collective bargaining between employers and workers. Inter-institutional action on behalf of workers' rights guarantees and amplifies the improvement of health and working conditions.


Author(s):  
Agnes Kelm ◽  
Anica Meins-Becker ◽  
Manfred Helmus

Despite a slight decrease in the number of accidents at work on German construction sites, a large number of accidents on construction sites occurred as a result of the collision of different trades. An important potential is in the optimization of the safety and health by making available predefined information about work safety for all involved trades. The aim of the project is the application of the BIM-method and the use of RFID-technology and Augmented Reality to improve work safety in the real estate and construction industry. It has to identify, define, and standardize information relevant to work safety so that they can be used for prevention-measures with Building Information Modeling (BIM). To do so, a process map was developed to map all relevant occupational health and safety processes during the lifecycle phases of a building. Therefore, all work safety-relevant processes have to be identified and defined. Furthermore, a demonstrator was developed in order to show possibilities like the usage of Augmented Reality (AR) and a commercially available tablet with a web app, in combination with Bluetooth beacons and RFID technology, based on a common data base. This will lead to the possibility of cross-company planning regarding work safety-relevant processes with BIM as well as the optimization of work safety in additional use of AutoID-Technologies.


2020 ◽  
Vol 17 (4) ◽  
pp. 1737-1742
Author(s):  
K. Muthukumar ◽  
A. Amudha ◽  
V. Richard Arutselvan ◽  
G. Radhakrishnan

The world is on the brink of a new technological revolution beyond any human experience. A new more powerful industrial revolution capable of bringing wealth, health and education, without pollution, to every person on the planet. This is the promise of nanotechnology. Nanotechnology has gained increased popularity largely due to the design, creation and utilization of materials whose constituent structures exist at Nanoscale. This paper aims to review all the previous work done and also therecent advancements and cutting edge inventions in nanotechnology. Today most of the products made using nanomaterials have general as well as unique applications like cancer treatment, self-powered Nano systems, Integrated chip fabrications, batteries etc. The recent works in the area of carbon nanotubes, Nano-polymers, nanocomposites, Nano-crystals, Nanoparticles, Nano shells, nanotubes, Nano filters, Nanohorn, nanowires, Nano springs etc. are reportedand the Various risks involved in using nanotechnology is discussed and the futuristic works like CNT processors, Peroforene, super capacitors and flow batteries are also discussed.


1987 ◽  
Vol 15 (2) ◽  
pp. 75-78 ◽  
Author(s):  
Elizabeth A. Bolyard ◽  
Timothy R. Townsend ◽  
Teresa Horan

2019 ◽  
Vol 2 (2) ◽  
pp. 57-68
Author(s):  
Joanna Furman

Abstract Ensuring work safety in manufacturing enterprises is one of the employer’s basic obligations under legal provisions. Actions taken in this area translate into a reduction in the number of registered accidents at work, occupational diseases or potentially accidental events. Limiting these types of events is possible by implementing preventive solutions to reduce the risk, employers ‘and employees’ cooperation in the field of occupational health and safety. These activities may take the form of technical solutions, but above all organizational. Enterprises use various management concepts that have an impact on improving work safety. One of the solutions eliminating or reducing hazards occurring at workplaces is the TWI (Training Within Industry) program. The TWI program is the foundation of a management culture based on continuous improvement and a continuous learning process. It is considered the starting point to implement the Lean Manufacturing concept. One of the TWI modules is aimed to creating a safe workplace, i.e. TWI-Job Safety (TWI-JS). The publication presents the results of the analysis of operations performed at a selected workstation in the production enterprise in the aspect of identifying and eliminating or limiting possible direct and indirect causes of hazards that may lead to accidents at work. For this purpose, a four-step TWI-JS method was used.


2021 ◽  
Vol 26 (2) ◽  
pp. 61-72
Author(s):  
Alfi Sahrina ◽  
Ifan Deffinika

This research is a qualitative descriptive study using secondary data as the main data. Data were collected through literature studies from the results of previous research in Sumbermanjing Wetan District. The results showed that Sumbermanjing Wetan had the potential to be used as a natural laboratory in the context of geography learning. This is supported by physical conditions in the form of diverse landscape features, quite complex social and cultural conditions. This potential includes the geological and geomorphological conditions of Sumbermanjing Wetan, the geodiversity and biodiversity of Sempu Island, social and cultural conditions, disasters, and tourism. In addition, the existence of natural resources in the area can also be used as one of the studies in fieldwork. Fieldwork-based learning can increase the skills of students in making observations, identifying, experimental, doing teamwork, and applying the use of technology. Geography learning topics at Sumbermanjing Wetan include physical, social, tourism, disaster, environmental, and other areas of geography. Indeed, implementing fieldwork needs to be independent, especially in managing data. In addition, fieldwork-based learning will continue to develop in line with the convenience of technology and increasingly advanced research studies with challenges faced including security, finance, health and safety, access to the field, and damage to the surrounding area used for fieldwork due to sampling exaggerated.


bionature ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Rosdiana Ngitung ◽  
Mushawwir Taiyeb ◽  
Irma Suryani Idris

Abstract. This research is a descriptive study that aims to determine the morphological characteristics of Marica goats. That are kept outside the habitat. Observation of morphological characteristics and eating activities using 2 goats (1 male and 1 female). This research was conducted at the Biology Experiment Garden in Makassar State University. The results obtained by Marica Goat have a relatively small body dimensions, upright ears and relatively small short, short and small horns and look agile and aggressive and Marica goats during the day (09.00-16.00) do more eating activities. Keywords: Marica Goat, morphological characteristicsm and eating activities.


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