Digital D: Options for Volunteer Involvement

Terry, Bryan D.; Harder, Amy; Pracht, Dale

doi:10.1002/9781118386194.oth7

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…In other study, authors reported that composites including silanated nanofiller, as opposed to untreated nanofiller, not only presented superior mechanical properties, but were more resistant to water sorption and general wear. 26 These finds are in agreement with our study where SWCNTs/SiO2-ATES presents higher flexural strength than SWCNTs/0.1, SWCNTs/0.2, and SWCNTs/0.3 groups that are not silanized. Moreover, TEM images of SWCNTs after silanization showed the presence of growth of nanoparticles of silicon oxides adhered to the surfaces ( Fig.…”

Section: Discussionsupporting

confidence: 93%

Flexural Strength of an Indirect Composite Modified with Single-Wall Carbon Nanotubes

Pennisi

Silva

Valverde³

et al. 2021

Eur J Dent

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Objectives The low resistance to fracture has limited the use of indirect composite resins for dental restorations, particularly in regions that are exposed to strong occlusal forces. To overcome this issue, different types of reinforcement for composites have been proposed, one of which is carbon nanotubes (CNTs). The aim of this study was to evaluate the flexural resistance of one commercial indirect composite resin (Sinfony, 3M/ESPE) after incorporation of single-wall carbon nanotubes (SWCNTs; Sigma–Aldrich, Inc., St. Louis, Missouri, United States) with or without the silanization form. Materials and Methods Specimens of composite resin were fabricated in a Teflon mold. The composite resin was prepared according to the manufacturer’s instructions (n = 10 for each group), with SWCNTs in three concentrations. Statistical Analysis The SWCNTs and SWCNT/SiO2-ATES specimens were evaluated by transmission electron microscopy, and a flexural test was conducted according to the ISO 4049/2009. Flexural strength data in MPa were submitted to one-way ANOVA following Tukey (p < 0.05). Results The SWCNTs did not improve the flexural strength of indirect composite resin when compared with the control, independent of the concentration added (p > 0.05). However, when SWCNTs and SWCNTs/SiO2-ATES were compared, the SWCNTs/SiO2-ATES showed higher values than the three concentrations of SWCNTs (p < 0.05). Conclusion The silanization process improves the SWCNTs strength proprieties, but the modification of chemical bonding between SWCNT and SWCNT/SiO2-ATES modified resins, in different concentrations, did not improve the composite resin flexural strength.

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Section: Discussionsupporting

confidence: 93%

Flexural Strength of an Indirect Composite Modified with Single-Wall Carbon Nanotubes

Pennisi

Silva

Valverde³

et al. 2021

Eur J Dent

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Lessons from a Black Swan: professionals in local co-production prior to and during Covid-19

Uster

2024

IJPSM

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PurposeThis study examines co-production during the Covid-19 crisis, characterized as a Black Swan event, with a specific emphasis on local professionals’ preparedness and response.Design/methodology/approachA qualitative approach combining deductive and inductive approaches was employed to gather data from professional coordinators of co-production processes in Israeli local governments. The study utilizes professionalism theory as a framework to examine such key elements as professional knowledge, autonomy, status and legitimacy. Additionally, open coding is used to investigate emerging themes.FindingsThe findings reveal that, despite preventive efforts by the central government, local professionals were unprepared to address the crisis. Traditional top-down approaches failed during the crisis, emphasizing the need for peer learning and collaboration among various stakeholders. Professionals' de facto autonomy, driven by quick decision-making and creative problem-solving, elevated their legitimacy and status. Inter- and intra-organizational collaboration was essential to maintain performance through co-producing public services. Finally, multicultural awareness proved vital; neglecting this may have severe consequences in routine times but especially during crises.Research limitations/implicationsUsing qualitative research, this study emphasizes the importance of understanding context in interpreting thoughts and actions. However, our approach has limitations. We collected data at a single point in time, which may not capture changes over time. Additionally, we relied on self-reporting from 19 public professionals in local municipalities, each managing the coproduction-based center within the respective municipality. However, this setup, where a single coordinator represents the entire co-production function of the municipality, has its limitations as only one voice is heard.Practical implicationsBy shedding light on the multifaceted aspects of co-production, policymakers and professionals could learn about such substantial factors as professionals’ autonomy, inter-organizational collaborations and sensitivity to cultural nuances, which should be established first and foremost in routine times to prepare for crisis. In our case study, governmental preventive measures were inapplicable to crises, and experience of prior crises did not necessarily bestow an ability to prepare accordingly. This is where the role of the street-level professionals becomes significant: these are the actors who experience the crisis on the ground and may provide a quick and effective response. Their ability to take the reins, to be innovative and to generate knowledge while exerting their own professional consideration, proved extremely important.Originality/valueThis research contributes to our understanding of public service professionals’ effective leveraging of the contributions of co-producers in times of crisis. It shifts focus from top-down policy preparedness and implementation to the development of appropriate organizational structures and active and routine stakeholder engagement, thereby enhancing preparedness for crises.

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Motivations Affecting Initial and Long-Term Participation in Citizen Science Projects in Three Countries

Rotman

Hammock

Preece

et al. 2014

iConference 2014 Proceedings

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Reliance on volunteer participation for citizen science has become extremely popular. Cutting across disciplines, locations, and participation practices, hundreds of thousands of volunteers throughout the world are helping scientists accomplish tasks they could not otherwise perform. Although existing projects have demonstrated the value of involving volunteers in data collection, relatively few projects have been successful in maintaining volunteers' continued involvement over long periods of time. Therefore, it is important to understand the temporal nature of volunteers' motivations and their effect on participation practices, so that effective partnerships between volunteers and scientists can be established. This paper presents case studies of longitudinal participation practices in citizen science in three countries-the United States, India, and Costa Rica. The findings reveal a temporal process of participation, in which initial participation stems in most cases from self-directed motivations, such as personal interest. In contrast, long-term participation is more complex and includes both self-directed motivations and collaborative motivations.

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Digital D: Options for Volunteer Involvement

Cited by 3 publications

References 6 publications

Flexural Strength of an Indirect Composite Modified with Single-Wall Carbon Nanotubes

Flexural Strength of an Indirect Composite Modified with Single-Wall Carbon Nanotubes

Lessons from a Black Swan: professionals in local co-production prior to and during Covid-19

Motivations Affecting Initial and Long-Term Participation in Citizen Science Projects in Three Countries

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