Distance-Based Vehicle Insurance — A Practical Strategy for More Optimal Vehicle Pricing

Author(s):  
Todd Litman
Keyword(s):  
METRON ◽  
2021 ◽  
Author(s):  
Paolo Mariani ◽  
Andrea Marletta

AbstractSocial media has become a widespread element of people’s everyday life, which is used to communicate and generate contents. Among the several ways to express a reaction to social media contents, the “Likes” are critical. Indeed, they convey preferences, which drive existing markets or allow the creation of new ones. Nevertheless, the appreciation indicators have some complex features, as for example the interpretation of the absence of “Likes”. In this case, the lack of approval may be considered as a specific behaviour. The present study aimed to define whether the absence of Likes may indicate the presence of a specific behaviour through the contextualization of the treatment of missing data applied to real cases. We provided a practical strategy for extracting more knowledge from social media data, whose synthesis raises several measurement problems. We proposed an approach based on the disambiguation of missing data in two modalities: “Dislike” and “Nothing”. Finally, a data pre-processing technique was suggested to increase the signal of social media data.


Author(s):  
Xing Li ◽  
Pingan Zhai ◽  
Yongsheng Fang ◽  
Wenhui Li ◽  
Honghong Chang ◽  
...  

A general and practical strategy for the construction of various keto-substituted isoxazolidines via one-pot three-component reaction of easily accessible, safer and more stable sulfoxonium ylides, nitrosoarenes and olefins is described.


Author(s):  
Trevor Place ◽  
Greg Sasaki ◽  
Colin Cathrea ◽  
Michael Holm

Strength and leak testing (AKA ‘hydrotesting’, and ‘pressure testing’) of pipeline projects remains a primary method of providing quality assurance on new pipeline construction, and for validating structural integrity of the as-built pipeline [1][2][3]. A myriad of regulations surround these activities to ensure soundness of the pipeline, security of the environment during and after the pressure testing operation, as well as personnel safety during these activities. CAN/CSA Z662-11 now includes important clauses to ensure that the pipeline designer/builder/operator consider the potential corrosive impacts of the pressure test media [4]. This paper briefly discusses some of the standard approaches used in the pipeline industry to address internal corrosion caused by pressure test mediums — which often vary according to the scope of the pipeline project (small versus large diameter, short versus very long pipelines) — as well as the rationale behind these different approaches. Case studies are presented to highlight the importance of considering pressure test medium corrosiveness. A practical strategy addressing the needs of long-distance transmission pipeline operators, involving a post-hydrotest inhibitor rinse, is presented.


2018 ◽  
Vol 27 (3) ◽  
pp. 153-159 ◽  
Author(s):  
Holly M. Menzies ◽  
Kathleen Lynne Lane ◽  
Wendy Peia Oakes ◽  
Karen Ruth ◽  
Emily D. Cantwell ◽  
...  

Active supervision is a practical strategy for increasing student engagement and decreasing student disruptive behavior. In this article, we describe a step-by-step process for using active supervision, with teaching tips to assist with successful implementation. Throughout the article we offer lessons from the field featuring the perspectives of practitioners who have used active supervision in classrooms that include students with challenging behavior.


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