Investigation of interaction among factors underlying construction hazard identification

2020 ◽  
Author(s):  
Qingwen Zhang ◽  
Dan Zhang ◽  
Pin-chao Liao ◽  
Yinan Hu
Keyword(s):  
Critical Role ◽  
Safety Training ◽  
Risk Tolerance ◽  
Hazard Identification ◽  
Identification Performance ◽  
Recognition Process ◽  
Anova Model ◽  
Visual Clutter ◽  
Main Effects ◽  
Hazard Recognition

Although previous studies explored the effect of relationships between some factors on hazard identification performance, there is still a need to better understand the interactive mechanisms among factors in the hazard recognition process. This study explored the interactions among factors in the search and decision phases on hazard identification performance. A safety inspection experiment was conducted in a civil engineering laboratory, during which the eye movements of the participants were recorded. The experimental data were entered into a three-way analysis of variance (ANOVA) model to examine the factors’ interactions. The results revealed that experience and risk tolerance interactively affect hazard identification performance, and visual clutter and time to first fixation respectively have main effects on hazard identification performance. The findings theoretically supplement knowledge about the interactive mechanisms of factors during the hazard recognition process, and will play a critical role in providing practical guidance for safety training.

scholarly journals Development of fatigue, accident experiences and safety culture relationships to the risk of fishing perception on the accidents of fishing vessel small and medium

2018 ◽  
Vol 204 ◽  
pp. 03010
Author(s):  
Septi Nurindah Sari ◽  
Ratna Sari Dewi ◽  
Adithya Sudiano
Keyword(s):  
Sleep Quality ◽  
Safety Culture ◽  
Risk Perceptions ◽  
Working Hours ◽  
Safety Training ◽  
Hazard Identification ◽  
Occupational Accidents ◽  
Safety Awareness ◽  
High Workload ◽  
Lack Of Sleep

Working at sea is associated with many challenges and risk in the job, such as a high workload, inappropriate working hours, minimum time for hanging out with family and increasing the risk of accidents. When an accident occurs, the perception of the risk of occupational accidents seafarers increased so that all workers start to think about their safety. Fatigue is one of the factors that can affect the seafarer safety. Fatigue among the seafarers is affected by lack of sleep duration and low sleep quality. Besides fatigue, accidental experiences can also influence risk perceptions. When the workers themselves or their friends see or experience an accident, it is likely to increase the risk of accidents perception among the workers. In addition to fatigue and accident experience, safety culture can also affect the perception of risk. Safety training, hazard identification and risk assessment, safety awareness and incident reporting are several factors that can be used to assess the safety culture. Therefore, the aim of this study is to examine the influence of fatigue, sleep quality, accident experiences and safety culture on the risk perception of fishermans who works at the Indonesian maritime territoires.

Development of virtual reality and stereo-panoramic environments for construction safety training

2020 ◽  
Vol 27 (8) ◽  
pp. 1853-1876 ◽  
Author(s):  
Idris Jeelani ◽  
Kevin Han ◽  
Alex Albert
Keyword(s):  
Performance Assessment ◽  
Virtual Environments ◽  
Cognitive Skills ◽  
Safety Training ◽  
Management Performance ◽  
Content Type ◽  
Hazard Management ◽  
Instructional Training ◽  
Training Protocol ◽  
Hazard Recognition

PurposeWorkers and construction professionals are generally not proficient in recognizing and managing safety hazards. Although valuable, traditional training experiences have not sufficiently addressed the issue of poor hazard recognition and management in construction. Since hazard recognition and management are cognitive skills that depend on attention, visual examination and decision-making, performance assessment and feedback in an environment that is realistic and representative of actual working conditions are important. The purpose of this paper is to propose a personalized safety training protocol that is delivered using robust, realistic and immersive environments.Design/methodology/approachTwo types of virtual environments were developed: (1) Stereo-panoramic environments using real construction scenes that were used to evaluate the performance of trainees accurately and (2) A virtual construction site, which was used to deliver various elements of instructional training. A training protocol was then designed that was aimed at improving the hazard recognition and management performance of trainees. It was delivered using the developed virtual environments. The effectiveness of the training protocol was experimentally tested with 53 participants using a before–after study.FindingsThe results present a 39% improvement in hazard recognition and a 44% improvement in hazard management performance.Originality/valueThis study combines the benefits of using a virtual environment for providing instructional training along with realistic environments (stereo-panoramic scenes) for performance assessment and feedback. The training protocol includes several new and innovative training elements that are designed to improve the hazard recognition and hazard management abilities of the trainees. Moreover, the effectiveness of training in improving hazard recognition and hazard management is measured using specific outcome variables.

scholarly journals Understanding the Dark Side of Online Reviews on Consumers' Purchase Intentions in E-Commerce: Evidence From a Consumer Experiment in China

2021 ◽  
Vol 12 ◽  
Author(s):  
Junbin Wang ◽  
Xiaojun Fan ◽  
Xiangdong Shen ◽  
Yurong Gao
Keyword(s):  
Purchase Intention ◽  
Word Of Mouth ◽  
Critical Role ◽  
Online Reviews ◽  
Purchase Intentions ◽  
Dark Side ◽  
Online Review ◽  
Purchase Decision ◽  
Subject Design ◽  
Main Effects

Background: Online review, as an important way of electronic word-of-mouth (eWOM) communication, plays an important role in e-commerce. However, few studies have examined the dark side of online reviews and their effect on consumers' purchase intentions. Information inconsistency is one of the dark sides that plays a critical role in influencing consumers' purchase intentions through online reviews.Methods: Using a 2*2 between-subject design that explores the main effects of the type of information inconsistency (vertical- vs. horizontal-attribute inconsistency) on purchase intention and the moderating effect of product type (search vs. experience product).Results: This study examines whether and how the type of information inconsistency between online recommendations and reviews influences consumer purchase decision-making.Conclusions: The findings show that vertical-attribute inconsistency leads to a lower purchase intention for search products; moreover, both vertical- and horizontal-attribute inconsistencies have no significant effect on purchase intention for experience products.

Esso Australia 2013 SAFE themes

2014 ◽  
Vol 54 (2) ◽  
pp. 505
Author(s):  
Craig Pearson ◽  
David Robinson
Keyword(s):  
Risk Tolerance ◽  
Hazard Identification ◽  
Senior Leadership ◽  
Peer Observation ◽  
Personal Safety ◽  
Safety Leadership ◽  
Life Saving ◽  
Job Safety ◽  
Workforce Engagement ◽  
Speak Up

The 2012 APPEA Stand Together for Safety video used a particularly powerful message: Speak up Act mindfully Follow the rules Get engaged This aligned with Esso’s global safety learning focus and so it has used the SAFE theme to increase its own workforce engagement. The aim of this initiative was to build and refresh skills and knowledge in the leadership and execution of personal safety expectations using our existing baseline safety tools. A planning workshop was conducted and a small cross-functional team was established to develop the SAFE theme quarterly schedule and materials. The quarterly SAFE theme builds on safety leadership behaviours through the use of existing tools: First quarter: speak up—focuses on tools for intervention such as approaching others. Second quarter: act mindfully—hazard identification including StepBack 5x5 and job safety analysis and risk tolerance such as 10 factors influencing risk tolerance. Third quarter: follow the rules—life saving actions including nine procedural focus areas that save lives Fourth quarter: get engaged—in-field review such as peer-to-peer observation Key to the success of the initiative was the significant involvement of senior leadership and first line supervisors. This improved workforce accountability through the application, demonstration, and promotion of safety leadership values. The initiative has resulted in an improvement in our safety performance, and improved communication and alignment across our facilities.

Diabetes and bone metabolism

2011 ◽  
Vol 152 (29) ◽  
pp. 1156-1160 ◽  
Author(s):  
Éva Ruzicska ◽  
Gyula Poór
Keyword(s):  
Bone Formation ◽  
Bone Metabolism ◽  
Critical Role ◽  
Leptin Resistance ◽  
Beta Catenin ◽  
Factors Affecting ◽  
Positive Effects ◽  
Pathologic Fractures ◽  
Pparγ Agonists ◽  
Main Effects

In the past decade several novel findings point to the critical role of the skeleton in several homeostatic processes, including energy balance. The connection begins in the bone marrow with lineage allocation of mesenchymal stem cells to adipocytes or osteoblasts. Osteoblasts and adipocytes produce factors affecting insulin homeostasis. The hormonally active adipose tissue can regulate bone metabolism. In this review authors discuss targets taking critical part in the bone-fat network: leptin, osteocalcin, PPAR γ2 and the Wnt/beta catenin pathway. Leptin regulates energy metabolism through controlling appetite. Mutation of the leptin gene resulting leptin resistance leads to high leptin levels, enormous appetite and pathologic obesity. Leptin also can influence the bone mass. The main effects of the thiazolidinedions – PPARγ agonists – are mediated through receptors located in adipocytes. However, beside their positive effects, they also suppress osteoblastogenesis and increase the risk for pathologic fractures. Osteocalcin, a known marker of bone formation, produced by osteoblasts decreases fat mass, promotes adiponectin production and insulin sensitivity, increases the number of pancreatic β-cells and increases insulin secretion. Thus, the skeletal system can regulate glucose metabolism and this substantially changed our view on this issue. Novel molecules can now be tested as targets in order to enhance bone formation and possibly prevent fractures. Orv. Hetil., 2011, 152, 1156–1160.

Inhibition of Acetyl-CoA Carboxylase Causes Malformations in Rats and Rabbits: Comparison of Mammalian Findings and Alternative Assays

2020 ◽  
Author(s):  
Natasha R Catlin ◽  
Christopher J Bowman ◽  
Sarah N Campion ◽  
Scott D Davenport ◽  
William P Esler ◽  
...  
Keyword(s):  
Fetal Development ◽  
De Novo ◽  
Developmental Toxicity ◽  
Acne Vulgaris ◽  
Critical Role ◽  
Hazard Identification ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Whole Embryo Culture ◽  
Area Of Interest

Abstract Acetyl-CoA carboxylase (ACC) is an enzyme within the de novo lipogenesis (DNL) pathway and plays a role in regulating lipid metabolism. Pharmacologic ACC inhibition has been an area of interest for multiple potential indications including oncology, acne vulgaris, metabolic diseases such as type 2 diabetes mellitus, and nonalcoholic fatty liver disease/nonalcoholic steatohepatitis. A critical role for ACC in de novo synthesis of long-chain fatty acids during fetal development has been demonstrated in studies in mice lacking Acc1, where the absence of Acc1 results in early embryonic lethality. Following positive predictions of developmental toxicity in the alternative in vitro assays (positive in murine embryonic stem cell [mESC] assay and rat whole embryo culture, but negative in zebrafish), developmental toxicity (growth retardation and dysmorphogenesis associated with disrupted midline fusion) was observed with the oral administration of the dual ACC1 and 2 inhibitors, PF-05175157, in Sprague Dawley rats and New Zealand White rabbits. The results of these studies are presented here to make comparisons across the assays, as well as mechanistic insights from the mESC assay demonstrating high ACC expression in the mESC and that ACC-induced developmental toxicity can be rescued with palmitic acid providing supportive evidence for DNL pathway inhibition as the underlying mechanism. Ultimately, while the battery of alternative approaches and weight-of-evidence case were useful for hazard identification, the embryo-fetal development studies were necessary to inform the risk assessment on the adverse fetal response, as malformations and/or embryo-fetal lethality were limited to doses that caused near-complete inhibition of DNL.

Coherent Analysis-of-Variance Hypothesis-Testing Strategies: A General Model

1982 ◽  
Vol 7 (3) ◽  
pp. 193-206 ◽  
Author(s):  
M. Austin Betz ◽  
Joel R. Levin
Keyword(s):  
Hypothesis Testing ◽  
Analysis Of Variance ◽  
Hierarchical Model ◽  
The Other ◽  
Factorial Anova ◽  
Testing Strategies ◽  
Anova Model ◽  
Alternative Hypotheses ◽  
The One ◽  
Main Effects

Logically consistent (“coherent”) hypothesis-testing strategies for factorial analysis-of-variance (ANOVA) designs are proposed in the context of a hierarchical model. It is shown that all of the hypotheses associated with the “traditional” factorial ANOVA model (i.e., main effects and interactions) are conceptually independent and occupy the lowest levels of the hierarchy. A research example is presented to illustrate the kind of conclusions that legitimately follow from testing the traditional hypotheses on the one hand, versus a variety of alternative hypotheses on the other.

scholarly journals PARS: Using Augmented 360-Degree Panoramas of Reality for Construction Safety Training

2018 ◽  
Vol 15 (11) ◽  
pp. 2452 ◽  
Author(s):  
Ricardo Eiris ◽  
Masoud Gheisari ◽  
Behzad Esmaeili
Keyword(s):  
Virtual Reality ◽  
Low Cost ◽  
Safety Training ◽  
Hazard Identification ◽  
Construction Workers ◽  
Controlled Environment ◽  
Training Methods ◽  
Proof Of Concept ◽  
Computational Costs ◽  
Visualization Techniques

Improving the hazard-identification skills of construction workers is a vital step towards preventing accidents in the increasingly complex working conditions of construction jobsites. Training the construction workforce to recognize hazards therefore plays a central role in preparing workers to actively understand safety-related risks and make assertive safety decisions. Considering the inadequacies of traditional safety-training methods (e.g., passive lectures, videos, demonstrations), researchers have employed advanced visualization techniques such as virtual reality technologies to enable users to actively improve their hazard-identification skills in a safe and controlled environment. However, current virtual reality techniques sacrifice realism and demand high computational costs to reproduce real environments. Augmented 360-degree panoramas of reality offers an innovative alternative that creates low-cost, simple-to-capture, true-to-reality representations of the actual construction jobsite within which trainees may practice identifying hazards. This proof-of-concept study developed and evaluated a platform using augmented 360-degree panoramas of reality (PARS) for safety-training applications to enhance trainees’ hazard-identification skills for four types of sample hazards. Thirty subjects participated in a usability test that evaluated the PARS training platform and its augmented 360-degree images captured from real construction jobsites. The usability reviews demonstrate that the trainees found the platform and augmentations advantageously to learning hazard identification. The results of this study will foreseeably help researchers in developing engaging training platforms to improve the hazard-identification skills of workers.

Sign in / Sign up

Export Citation Format

Share Document