The What and How of Positive Feedback: A Review and Experimental Study of Positive Feedback “Best Practices”

2022 ◽  
pp. 251-274
Author(s):  
Elena Svetieva ◽  
Paulo N. Lopes
2015 ◽  
Vol 2015 (1) ◽  
pp. 77-91 ◽  
Author(s):  
Vasile C. Perta ◽  
Marco V. Barbera ◽  
Gareth Tyson ◽  
Hamed Haddadi ◽  
Alessandro Mei

Abstract Commercial Virtual Private Network (VPN) services have become a popular and convenient technology for users seeking privacy and anonymity. They have been applied to a wide range of use cases, with commercial providers often making bold claims regarding their ability to fulfil each of these needs, e.g., censorship circumvention, anonymity and protection from monitoring and tracking. However, as of yet, the claims made by these providers have not received a sufficiently detailed scrutiny. This paper thus investigates the claims of privacy and anonymity in commercial VPN services. We analyse 14 of the most popular ones, inspecting their internals and their infrastructures. Despite being a known issue, our experimental study reveals that the majority of VPN services suffer from IPv6 traffic leakage. The work is extended by developing more sophisticated DNS hijacking attacks that allow all traffic to be transparently captured.We conclude discussing a range of best practices and countermeasures that can address these vulnerabilities


Author(s):  
Gongxun Liu ◽  
M. Hadi Amini ◽  
Kianoosh G. Boroojeni ◽  
A. Nejadpak ◽  
S.S. Iyengar

2015 ◽  
Vol 10 (2) ◽  
pp. 21 ◽  
Author(s):  
Consuella Askew

Abstract Objective – The objectives of this research are threefold: a) to assess the students’ perception of the roaming service at the point of service; b) to assess the librarians’ perception of the service; and, c) to solicit librarian feedback and observations on their roaming experience and perceived user reactions. Ultimately, this data was used to inform and identify best practices for the improvement of the roaming service. Methods – A combination of quantitative and qualitative survey methodologies were used to collect data regarding patron and librarian service perceptions. Patrons and librarians were asked to complete a survey at the conclusion of each reference transaction. In addition at the end of the first semester of the implementation, librarians were asked to provide feedback on the overall program by responding to five open-ended questions. Results – The findings indicate that our students typically seek assistance from the librarians once a term (58%), but the majority (71%) indicated that they would seek a librarian’s assistance more frequently, if one were available on the various floors of the library. Overall, our users indicated that they were “Satisfied” (36%) to “Very Satisfied” (43%) with the roaming service. Librarian responses indicate overall enthusiasm and positive feelings about the program, but cautioned that additional enhancements are needed to ensure the continued development and effectiveness of the service. Conclusion – Overall, patrons were satisfied with the service delivered by the roaming reference librarian. The roaming librarians also provided positive feedback regarding the delivery of service. Data collected from both groups is also in agreement on two major program aspects needing improvement: marketing of the service and a means by which to easily identify the roaming librarian.


Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.


Author(s):  
Kristen Izaryk ◽  
Robin Edge ◽  
Dawn Lechwar

Purpose The purpose of this article is to explore and describe the approaches and specific assessment tools that speech-language pathologists are currently using to assess social communication disorders (SCDs) in children, in relation to current best practices. Method Ninety-four speech-language pathologists completed an online survey asking them to identify which of the following approaches they use to assess children with SCD: parent/teacher report, naturalistic observation, formal assessment, language sample analysis, interviews, semistructured tasks, and peer/self-report. Participants were also asked to identify specific assessment tools they use within each approach. Results Participants most commonly assess SCDs by combining interviews, naturalistic observation, language sampling, parent/teacher report, and formal assessment. Semistructured tasks and peer/self-report tools were less frequently utilized. Several established parent/teacher report and formal assessment tools were commonly identified for assessing SCDs. Most participants use an informal approach for interviews, language sampling, and naturalistic observations in their SCD assessment process. Conclusions Generally, participants follow best practices for assessing SCDs by combining several different approaches. Some considerations for future assessment are identified, including the use of established protocols in the place of informal approaches in order to make the assessment of SCDs more systematic. Future directions for research are discussed.


Author(s):  
Elena Dukhovny ◽  
E. Betsy Kelly

According to the 2010 U.S. Census, over 20% of Americans speak a language other than English in the home, with Spanish, Chinese, and French being the languages most commonly spoken, aside from English. However, few augmentative and alternative communication (AAC) systems offer multilingual support for individuals with limited functional speech. There has been much discussion in the AAC community about best practices in AAC system design and intervention strategies, but limited resources exist to help us provide robust, flexible systems for users who speak languages other than English. We must provide services that take into consideration the unique needs of culturally and linguistically diverse users of AAC and help them reach their full communication potential. This article outlines basic guidelines for best practices in AAC design and selection, and presents practical applications of these best practices to multilingual/multicultural clients.


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