Influence of polyacrylamide conformation on fabric of “tunable” kaolin–polymer composite

2018 ◽  
Vol 55 (9) ◽  
pp. 1295-1312 ◽  
Author(s):  
Bijoy K. Halder ◽  
Angelica M. Palomino ◽  
Jordan Hicks
Keyword(s):  
Polymer Composite ◽  
Polymer Molecule ◽  
Interparticle Spacing ◽  
Engineering Properties ◽  
Polymer Conformation ◽  
Face To Face ◽  
Wide Range ◽  
Solids Content ◽  
Molecule Conformation ◽  
Clay Materials

“Tunable” clay–polymer composites have the potential to improve the engineering properties of clay materials. The importance of these materials derives from the ability of the responsive polymer to adopt various conformations (coiled, partially extended or extended), which in turn impacts the mesoscale properties of the material. However, the influence of polymer molecule conformation on particle arrangement and overall composite behavior is not well understood. The purpose of this study is to understand the fabric development due to the conformational behavior of the polymer, and thus the clay–polymer composite, over a wide range of solids content and stress levels. The polymer molecule conformation was controlled using selected fluid pH and ionic concentrations. Results show that the polymer conformation significantly influences clay fabric formation. When the polymer molecules are likely to have extended conformation, the dominant fabric mode is face-to-face and particle mobilization increases. Both face-to-face and edge-to-edge fabric formation dominate the behavior of the composite when coiled conformation is likely, resulting in a decrease in interparticle movement. Thus, the polymer conformation can be used to manipulate both the interparticle spacing between particles and (or) aggregates and arrangement of particles.

Reading Beyond the Code

2018 ◽  
Keyword(s):  
Relevance Theory ◽  
Literary Studies ◽  
The Novel ◽  
Human Communication ◽  
Communicative Acts ◽  
Face To Face ◽  
Code Model ◽  
Wide Range ◽  
Central Claim

This book explores the value for literary studies of relevance theory, an inferential approach to communication in which the expression and recognition of intentions plays a major role. Drawing on a wide range of examples from lyric poetry and the novel, nine of the ten chapters are written by literary specialists and use relevance theory both as an overall framework and as a resource for detailed analysis. The final chapter, written by the co-founder of relevance theory, reviews the issues addressed by the volume and explores their implications for cognitive theories of how communicative acts are interpreted in context. Originally designed to explain how people understand each other in everyday face-to-face exchanges, relevance theory—described in an early review by a literary scholar as ‘the makings of a radically new theory of communication, the first since Aristotle’s’—sheds light on the whole spectrum of human modes of communication, including literature in the broadest sense. Reading Beyond the Code is unique in using relevance theory as a prime resource for literary study, and is also the first to apply the model to a range of phenomena widely seen as supporting an ‘embodied’ conception of cognition and language where sensorimotor processes play a key role. This broadened perspective serves to enhance the value for literary studies of the central claim of relevance theory: that the ‘code model’ is fundamentally inadequate to account for human communication, and in particular for the modes of communication that are proper to literature.

scholarly journals Effects of self-management education programmes on self-efficacy for osteoarthritis of the knee: a systematic review of randomised controlled trials

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Daisuke Uritani ◽  
Hitoshi Koda ◽  
Sho Sugita
Keyword(s):  
Health Professionals ◽  
Self Efficacy ◽  
Randomised Controlled Trials ◽  
Management Education ◽  
Self Management ◽  
Controlled Trials ◽  
Face To Face ◽  
Knee Oa ◽  
Wide Range ◽  
Randomised Controlled

Abstract Background Enhancing self-efficacy to manage symptoms and functions is an important aspect of self-management for patients with knee osteoarthritis (OA). Many reports have investigated the effects of self-management education programmes for arthritis patients. However, a study that exclusively focuses on patients with OA in the same joints is required to clarify the effects of self-management programmes because individuals with knee OA experience physical and psychological difficulties different from those experienced by individuals with other arthritis diseases. Furthermore, previous studies have reported a wide range of delivery styles of self-management education programmes. This systematic review aimed to evaluate the effects of group-based and face-to-face self-management education programmes conducted by health professionals targeting self-efficacy for knee OA exclusively. Methods The MEDLINE, CENTRAL, EMBASE, CINAHL, Web of Science, and PEDro databases were searched to identify quantitative measures used in randomised controlled trials (RCTs) to assess the effects of self-management education programmes targeting self-efficacy in patients with knee OA. We included studies in which medical professional-delivered self-management education programmes were conducted in a group-based and face-to-face manner in community or outpatient settings. Results Seven RCTs from five countries were included in this review. Our retrieved studies included various types of self-management education programmes such as cognitive behavioural counselling, pain management education, physical education, weight management education, and arthritis self-efficacy management education, and control arms. They assessed various aspects of self-efficacy, including pain, physical function, arthritis symptoms excluding pain, weight management, mobility, and self-regulation. The total score of the Arthritis Self-Efficacy Scale was also measured. Some studies have reported beneficial effects of group-based and face-to-face self-management education programmes on self-efficacy for management of pain and other symptoms and for self-regulatory, knee OA. However, the results of the included studies were varied and inconsistent. Conclusions The current review only included seven studies, and there was a wide range of clinical heterogeneity among these studies. Thus, the effects of group-based and face-to-face self-management education programmes conducted by health professionals on self-efficacy for knee OA exclusively are inconclusive to date. Therefore, high-quality studies are required to provide significant information on clinicians, patients, and healthcare professionals in the future.

scholarly journals Compressibility behaviour of remoulded, fine-grained soils and correlation with index properties

2000 ◽  
Vol 37 (3) ◽  
pp. 712-722 ◽  
Author(s):  
A Sridharan ◽  
H B Nagaraj
Keyword(s):  
Liquid Limit ◽  
Plasticity Index ◽  
Engineering Properties ◽  
Test Results ◽  
Index Properties ◽  
Initial Water ◽  
Fine Grained ◽  
Wide Range ◽  
The Relationship ◽  
Water Contents

Correlating engineering properties with index properties has assumed greater significance in the recent past in the field of geotechnical engineering. Although attempts have been made in the past to correlate compressibility with various index properties individually, all the properties affecting compressibility behaviour have not been considered together in any single study to examine which index property of the soil correlates best with compressibility behaviour, especially within a set of test results. In the present study, 10 soils covering a sufficiently wide range of liquid limit, plastic limit, and shrinkage limit were selected and conventional consolidation tests were carried out starting with their initial water contents almost equal to their respective liquid limits. The compressibility behaviour is vastly different for pairs of soils having nearly the same liquid limit, but different plasticity characteristics. The relationship between void ratio and consolidation pressure is more closely related to the shrinkage index (shrinkage index = liquid limit - shrinkage limit) than to the plasticity index. Wide variations are seen with the liquid limit. For the soils investigated, the compression index relates better with the shrinkage index than with the plasticity index or liquid limit.Key words: Atterberg limits, classification, clays, compressibility, laboratory tests.

Interaction Online

2017 ◽  
Author(s):  
Lindsay Clandfield ◽  
Jill Hadfield
Keyword(s):  
Language Teaching ◽  
Online Interaction ◽  
Discussion Forums ◽  
Valuable Resource ◽  
Instant Message ◽  
Face To Face ◽  
Learning Contexts ◽  
Teaching Interaction ◽  
Wide Range

This book is for teachers interested in incorporating interaction online into their teaching. Interaction Online is a valuable resource for anyone who wants to incorporate an aspect of online interaction in their language teaching. It is relevant for use with online, blended or face-to-face courses and appropriate for a wide range of teachers and learning contexts. This handbook contains over 75 tried and tested activities, the majority of which can be carried out either synchronously or asynchronously. Activities are purposeful and foster interaction between and among learners and instructors, rather than between learner and machine, and make use of generic tools and applications, such as discussion forums, instant message services and Facebook.

scholarly journals An Action Research on Design, Delivery, and Evaluation of a Distance Course in a Vocational Higher Education Institution

2015 ◽  
pp. 138-166
Author(s):  
Erman Uzun ◽  
M. Yaşar Özden ◽  
Ali Yildirim
Keyword(s):  
Higher Education ◽  
Action Research ◽  
Web Design ◽  
Evaluation Process ◽  
Education Institution ◽  
Design Development ◽  
Higher Education Institution ◽  
Face To Face ◽  
Wide Range ◽  
Vocational Higher Education

In this chapter, the main purpose is to explain design, development, delivery, and evaluation process of a new distance web design course for the needs of students in a vocational higher education institution. It is important to highlight how wisely instructional technology was designed and used to mitigate problems to effectively support the course. Proactive action research was used as a framework of the study. This research focused on an analysis of the existing face-to-face course to mitigate its problems in the new design. Then, strengths and weaknesses of the new design in the new context were investigated. It is important to highlight that technology comes with its unique problems and opportunities. Thus, teaching in a technological environment confronts instructors with a wide range of pedagogical, technological, and physical challenges.

scholarly journals Systemic Puppet Therapy in Rehabilitation Practice

2020 ◽  
Vol 99 (5) ◽  
pp. 88-93
Author(s):  
O.A. Lanberg ◽  
L.G. Khayet ◽  
T.V. Kadinskaya
Keyword(s):  
Research Centre ◽  
Face To Face ◽  
National Medical ◽  
Resource Search ◽  
Wide Range ◽  
Analysis And Synthesis ◽  
Scope Of Application ◽  
Puppet Therapy ◽  
Psychological Assistance ◽  
Intellectual Level

The concept of systemic puppet therapy proposed by the authors is described. Therapeutic work with puppets is a promising method of psychological assistance as part of rehabilitation processes. Its insufficient use is due to its low structurality. The phased application of morphological analysis and synthesis made it possible to streamline the known and develop new effective methods of puppet therapy. The proposed systemic puppet therapy is an ordered polymodal set of static (lining on the table or on the floor of a puppet arranged set) and dynamic (presenting history on behalf of the puppet or staging a performance) methods, individual and group methods, face-to-face and remote forms of work, algorithms for their choice.The size, material and design of puppets, quantitative and qualitative composition of their therapeutic set are justified. Methods of puppet therapy of different degree of structuring and depth of exposure for patients with different level of intelligence are described, including category and scope of application of the technique, instructions to the patient, plan of results discussion,transformation procedure providing therapeutic effect. Implementing a polymodal approach, after working with puppets, patients painted, composed and analysed works of literature andart. The field of puppet therapy intersected with the fields of drama-, mask- and art therapy, body-oriented and verbal therapy, psychodrama and system arrangements. Puppet therapy content included work with feelings and emotions, with the process of communication and social roles, with verbal and non-verbal diagnostics and self-diagnostics, with personal features and a system of relationships,with values and needs, with existential problems of patients. Systemic puppet therapy is applicable to a wide range of nosological categories, therapeutic situations, physical condition, intellectual level, gender and age characteristics of patients.The conditions and examples of application of techniques in the National Medical Research Centre of Rehabilitation and Balneology with the tasks of correcting unproductive attitudes and the system of patient relations, correcting perceptions of oneself; capacity-building and resource search; development of a compliance installation and active participation in rehabilitation are given.

LASER FLUORESCENCE OF SAND AND CLAY MATERIALS

1977 ◽  
Vol 57 (1) ◽  
pp. 1-8
Author(s):  
A. R. MACK ◽  
E. J. BRACH
Keyword(s):  
Grain Size ◽  
Fluorescence Spectra ◽  
Laser Energy ◽  
Average Power ◽  
Laser Fluorescence ◽  
Regression Estimate ◽  
Airborne Laser ◽  
Wide Range ◽  
Fineness Of Grain ◽  
Clay Materials

Samples of granular materials illuminated with a 20 m Watt (average power) laser energy source at a wavelength of 337.1 nm differed in their fluorescence spectra over a wide range of wavelengths from approximately 380 to 660 nm. The fluorescent yield was usually higher with increased fineness of grain size and with increased concentration of clay (> 10% of under 2-μ grain size). However, sandy soils containing a low content of clay (i.e. < 10%) had a higher yield than the regression estimate. Modifying the fluorosensor for greater resolution at a higher energy level (1 nm bandwidth and 25 m Watt average power) resulted in eight discernible peaks between 384 and 440 nm, at 486 and at 550 nm. Overall fluorescence was markedly increased by removal of Fe coatings from the surface of the grains by a dithionite treatment. Thus, laser-induced fluorescence spectra obtained from various partially vegetated land areas by airborne laser fluorosensing may be influenced by the granular material associated with non-vegetated "open" areas.

MyLO

2012 ◽  
pp. 129-137
Author(s):  
Si Fan ◽  
Quynh Lê ◽  
Yun Yue
Keyword(s):  
Online Courses ◽  
Tertiary Education ◽  
Communication Services ◽  
Web Based ◽  
Education Management ◽  
Face To Face ◽  
Wide Range ◽  
Face To Face Learning ◽  
Management Students

As one of the key infrastructures within web-based learning, courseware is adopted by schools and universities to enable a systematic learning delivery and education management. Students in both traditional face-to-face learning and online courses can benefit from this technology. The wide range of courseware platforms are supporting course needs by offering great flexibility in information delivery, communication services, and collaboration. This chapter looks at the role of web-based courseware in tertiary education, using MyLO (My Learning Online) as an example. It reveals that courseware systems like MyLO have a great potential in facilitating collaborations and enhance interactions among lecturers and students. To achieve this, potential efforts from all perspective are required; including students, lecturers and faculties.

The Rise of the Virtual Human

2020 ◽  
pp. 1459-1488
Author(s):  
Wendy A. Powell ◽  
Natalie Corbett ◽  
Vaughan Powell
Keyword(s):  
Popular Culture ◽  
Facial Animation ◽  
Virtual Human ◽  
Virtual Humans ◽  
Fully Integrated ◽  
Face To Face ◽  
Wide Range ◽  
The Voice ◽  
Design Challenges

Virtual Humans are here to stay. From the voice in your satNav to Apple's “Siri”, we are accustomed to engaging in some level of conversation with our technology, and it is rapidly becoming apparent that natural language interfaces have potential in a wide range of applications. Whilst audio-only communication has its place, most natural conversations take place face to face, and believable embodiment of virtual humans is the necessary next step for them to be fully integrated into our lives. Much progress has been made in the creation of relatable characters for film, but real-time facial animation presents a unique set of design challenges. This chapter examines the role of the virtual human, its history, and approaches to design and creation. It looks at ways in which they can be brought to life, interacting, assisting and learning. It concludes with a view into popular culture and perceptions of the future, where fact and fiction meet.

Promoting Autonomous Language Learning in Online Environments

10.47908/9/15 ◽  
2013 ◽  
pp. 165-280
Author(s):  
Maria De Santo ◽  
Luisa Boardman
Keyword(s):  
Language Learning ◽  
Computer Mediated Communication ◽  
Real Life ◽  
Autonomous Learning ◽  
Mediated Communication ◽  
Face To Face ◽  
Integration Of Technology ◽  
Computer Mediated ◽  
Wide Range ◽  
The University

The Self-Access Language Centre of the University of Naples “L’Orientale” (CILA) promotes the development of autonomy in language learning, offering a wide range of technology-based resources and a language counselling service. In the last few years, to satisfy the growing need for independent language learning in our university, we have integrated autonomous learning in the SAC with online pathways and multimedia materials. We started by offering online Self-Access activities in blended courses, integrating face-to-face classroom teaching with online modules. This experiment enabled us to develop a kind of blended autonomous learning, combining a real-life SAC with online Self-Access Centres. Virtual SACs suggest a variety of language learning activities and allow learners to study a language while reflecting on their learning process. In the online SAC, language counsellors implement the language learner’s autonomy promoted in presence in the SAC, interacting with them through computer-mediated communication. In this paper we shall look at how the promotion of autonomy in language learning can be enhanced through the integration of technology-based materials and activities made available in self-access modality. Our aim is to present online resources designed to help students learn a foreign language autonomously.

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