scholarly journals OCCUPATIONAL EXPOSURE TO LOCALIZED VIBRATIONS USING PORTABLE MECHANICAL BRUSH CUTTER IN COFFEE CROP

2019 ◽  
Vol 14 (2) ◽  
pp. 183
Author(s):  
Geraldo Gomes de Oliveira Junior ◽  
Adriano Bortolotti da Silva ◽  
Irlon De Ângelo Cunha ◽  
Lucas Eduardo de Oliveira Aparecido ◽  
Paulo Henrique de Siqueira Sabino
Keyword(s):  
Occupational Exposure ◽  
Experimental Design ◽  
Working Conditions ◽  
Contact Point ◽  
Mechanical Vibration ◽  
Triaxial Accelerometer ◽  
Exposure Limit ◽  
Working Day ◽  
Localized Vibrations ◽  
Selection Of

The use of portable brush cutter may expose workers to localized vibrations, from the transfer of mechanical vibration of the tool to the operator’s hands and arms. With this in mind, the objective in this study was to quantify the levels of occupational vibration transmitted to the hands and arms of the portable brush cutter operators under routine working conditions in the coffee crop. The vibration levels transmitted to the operator’s hands were measured during activity with portable brush cutters. The experimental design was completely randomized (CRD) in a factorial scheme (2 x 2) combined with two types of grip (Circular cable (CC) and double grip handle (DGH) with two types of tip cutting blades (2TB and 3TB). The data acquisition occurred from the use of the vibration meter SV 103, SVANTEK with triaxial accelerometer, installed on each of the worker’s hand at the contact point with the tool. The results demonstrated that the 2.5 ms-2 action level determined by NR 09 and NHO 10 was exceeded under all conditions of the present study. The highest accelerations were quantified in the operation of the brush cutter equipment with CC, reaching the daily exposure limit of 5 ms-2 allowed for an 8-hour of working day. The resulting acceleration of the DGH equipment was on average 37.45% lower than the operation with the CC equipment. The results bring indicatives of occupational advantages in the selection of these types of accessories for brush cutters, in order to mitigate the effects of exposure to HAV in extended use situations

Hygienic aspects of working conditions of workers in the Samara region

2020 ◽  
pp. 564-564
Author(s):  
N. S. Belyakova ◽  
N. M. Tsunina ◽  
A. S. Karapetyan
Keyword(s):  
Working Conditions ◽  
Female Body ◽  
Working Environment ◽  
Working Day

The factors of working conditions that affect the health of women during the working day are listed. Developed measures to create a favorable working environment for the female body.

Application of experimental design for selection of optimal modes of electro-deformation cladding with a flexible tool

2020 ◽  
pp. 71-76
Author(s):  
M.A. Levantsevich ◽  
E.V. Pilipchuk ◽  
N.N Maksimchenko ◽  
L.S. Belevskiy ◽  
R.R. Dema
Keyword(s):  
Composite Material ◽  
Experimental Design ◽  
Statistical Models ◽  
Experiment Planning ◽  
Flexible Tool ◽  
Tool Coating ◽  
Coating Composite ◽  
Selection Of

Experimental-statistical models of the process of forming composite chromium coatings by electrodeformation cladding with a flexible tool are developed, which allow to determine the parameters of the regimes for obtaining coatings of the required thickness and roughness. Keywords electrodeformation cladding, flexible tool, coating, composite material, experiment planning, noncompositional plan, thickness, roughness. [email protected]

Disease area and mode of action as criteria to assign a default occupational exposure limit

2021 ◽  
Vol 122 ◽  
pp. 104891
Author(s):  
Milica Glogovac ◽  
Caylee Paulson ◽  
Amy Lambert ◽  
Gian Christian Winkler ◽  
Ester Lovsin Barle
Keyword(s):  
Occupational Exposure ◽  
Mode Of Action ◽  
Occupational Exposure Limit ◽  
Disease Area ◽  
Exposure Limit

Derivation of an occupational exposure limit for β-glucans

2021 ◽  
pp. 104959
Author(s):  
Jillian A. Parker ◽  
Corey Boles ◽  
Amanda Buerger ◽  
Ernest S. Fung ◽  
Andrew Maier
Keyword(s):  
Occupational Exposure ◽  
Occupational Exposure Limit ◽  
Exposure Limit

The Value of Brand Fans during a Crisis: Exploring the Roles of Response Strategy, Source, and Brand Identification

2021 ◽  
pp. 232948842199969
Author(s):  
Hayoung Sally Lim ◽  
Natalie Brown-Devlin
Keyword(s):  
Social Media ◽  
Experimental Design ◽  
Crisis Communication ◽  
Word Of Mouth ◽  
Crisis Response ◽  
Response Strategy ◽  
Brand Identification ◽  
Communication Source ◽  
Practical Implications ◽  
Selection Of

Using a two (crisis response strategy: diminish vs. rebuild) × three (source: brand organization vs. brand executive vs. brand fan) experimental design, this study examines how brand fans (i.e., consumers who identify with a brand) can be prompted to protect a brand’s reputation during crises and how the selection of a crisis spokesperson can influence consumers’ evaluations of the crisis communication. Being buffers for their preferred brands, brand fans are more likely to accept their brand’s crisis response and engage in positive electronic word-of-mouth on social media. Brand fans are more likely to evaluate other brand fan’s social media accounts as a credible crisis communication source, whereas those who are not brand fans are more likely to evaluate brand and/or brand executives as credible. Findings provide theoretical applications in paracrisis literature pertaining to social media but also practical implications for brand managers to strategically utilize brand fans in crisis communication.

Gefahrstoffe am Arbeitsplatz – Arbeitsplatzgrenzwert, Immissionsgrenzwert oder Innenraumrichtwert?/Hazardous substances at workplace – Occupational exposure limit, immission limit value or indoor air guide value?

Gefahrstoffe ◽  
2019 ◽  
Vol 79 (07-08) ◽  
pp. 255-259
Author(s):  
R. Hebisch ◽  
T. Kuhlbusch ◽  
K. Bux ◽  
D. Breuer ◽  
T. Lahrz
Keyword(s):  
Occupational Exposure ◽  
Indoor Air ◽  
Hazardous Substances ◽  
Occupational Exposure Limit ◽  
Guide Value ◽  
Limit Value ◽  
Exposure Limit

Die Beurteilung der Konzentrationen von Gefahrstoffen in der Luft kann anhand verschiedener Beurteilungsmaßstäbe erfolgen. Einerseits ist dafür ausschlaggebend, ob Tätigkeiten mit Gefahrstoffen oder ohne Gefahrstoffe ausgeführt werden. Andererseits ist auch immer zu berücksichtigen, ob die Tätigkeiten im Freien, in teilweise geschlossenen oder geschlossenen Arbeitsbereichen erfolgen. Es werden einzelne Szenarien näher betrachtet und die Expositionsbeurteilung wird anhand von Arbeitsplatzgrenzwerten, Immissionsgrenzwerten und Innenraumrichtwerten dargestellt. Dabei wird insbesondere auf solche Situationen eingegangen, die sich nicht eindeutig voneinander abgrenzen lassen.

How does the radio spokesperson’s voice influence credibility?

2017 ◽  
Vol 42 (2) ◽  
Author(s):  
Josefa D. Martín-Santana ◽  
Eva Reinares-Lara ◽  
Pedro Reinares-Lara
Keyword(s):  
Experimental Design ◽  
Blood Donation ◽  
Stimulus Material ◽  
Pitch Accent ◽  
Three Dimensions ◽  
Audiovisual Media ◽  
Its Analysis ◽  
Vocal Pitch ◽  
Spokesperson Credibility ◽  
Selection Of

AbstractIn radio, spokesperson credibility is a resource that can improve the effectiveness of a message, and its analysis requires the study of how voice qualities influence the listener. The aims of this study are to design and test the suitability of a scale of radio spokesperson credibility, and to analyse the effect of the phonoaesthetic function – that is, how a spokesperson’s gender, vocal pitch, accent and their interactions affect their credibility. We conducted a 2 × 2 × 2 experimental design via eight radio programmes in which we inserted a radio spot as stimulus material. The hypotheses were tested on a sample of 987 Spanish radio listeners, and the advertised service was blood donation. The results allowed the validation of a scale of spokesperson credibility, traditionally used in audiovisual media, formed by three dimensions (attractiveness, expertise and trustworthiness), and provide several implications for the selection of a spokesperson for radio.

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