Merely a Conventional ‘Diffusion’ Problem? On the Adoption Process of Anki Vector

Author(s):  
Astrid Weiss ◽  
Anna Pillinger ◽  
Christiana Tsiourti
2020 ◽  
Vol 26 ◽  
pp. 78
Author(s):  
Thirupathi Gudi ◽  
Ramesh Ch. Sau

We study an energy space-based approach for the Dirichlet boundary optimal control problem governed by the Laplace equation with control constraints. The optimality system results in a simplified Signorini type problem for control which is coupled with boundary value problems for state and costate variables. We propose a finite element based numerical method using the linear Lagrange finite element spaces with discrete control constraints at the Lagrange nodes. The analysis is presented in a combination for both the gradient and the L2 cost functional. A priori error estimates of optimal order in the energy norm is derived up to the regularity of the solution for both the cases. Theoretical results are illustrated by some numerical experiments.


GIS Business ◽  
2020 ◽  
Vol 14 (6) ◽  
pp. 1147-1155
Author(s):  
J.Nithya Jayaseeli ◽  
T. Devi

The purpose of this study is to examine how Knowledge level augmented parameters impact on the effective adoption of information and communication technology (ICT) by onion farmers in Perambalur district of Tamil Nadu. Data were gathered from a focus group made up of 60 Farmers in Perambalur district. The paper finds that a willingness of indigenous ICT users is particularly influenced by the recognition and incorporation of visible social imperatives during the adoption process. Research limitations/implications – The outcome of this study highlights important issues for ICT adoption. One particular area that must be taken into consideration is the adoption channel. Perceptions of ICT adoption will differ significantly among adopters. For this reason, the need for developing an appropriate adoption channel that ensures successful diffusion of the innovation should be recognized. The paper also demonstrates that Knowledge Management System among farmers using ICT to yield more profit in onion Production form knowledge distributed by the experts. Hence the research work carried out to acquire, represent, and distribute the knowledge Management system to the Farming community.


Author(s):  
Jerome Hall ◽  
Daniel Turner

The conception, development, and adoption of early AASHO highway design criteria are documented. Examining the early efforts states used to select a design vehicle and develop horizontal curve design criteria illustrates why AASHO’s leadership was necessary. AASHO’s slow and somewhat haphazard criteria development, and the disparity from state to state, demonstrated the need for a national consensus in highway design parameters. AASHO’s role in providing these criteria is outlined through its initial development of policy booklets, followed by its 1954 publication of the landmark Blue Book. The processes by which nine states adopted the AASHO guidance are briefly reviewed. In several cases, the AASHO policy was embraced immediately, and in others it was accepted slowly as states clung to their independent design processes and only gradually updated their design criteria. A few simple conclusions are drawn about the development and adoption process, particularly as it may relate to tomorrow’s highway design criteria.


Author(s):  
Naomi Muinga ◽  
Steve Magare ◽  
Jonathan Monda ◽  
Mike English ◽  
Hamish Fraser ◽  
...  

BACKGROUND As healthcare facilities in Low- and Middle-Income Countries (LMICs) such as Kenya adopt Electronic Health Record (EHR) systems to improve hospital administration and patient care, it is important to understand the adoption process, identify the key stakeholders, and assess the capabilities of the systems in use. OBJECTIVE To describe the level of adoption of Electronic Health Records systems in public hospitals and understand the process of adoption from Health Management Information System (HMIS) system vendors and system users. METHODS We conducted a survey of County Health Records Information Officers (CHRIOs) in Kenya to determine the level of adoption of Electronic Health Records systems in public hospitals. We conducted site visits to hospitals to view systems in use and to interview hospital administrators and end users. We also interviewed Health Management Information System (HMIS) system vendors to understand the adoption process from their perspective. RESULTS From the survey of CHRIOs, all facilities mentioned had adopted some form of EHR. Hospitals commonly purchased systems for patient administration and hospital billing functions. Radiology and laboratory management systems were commonly standalone systems. There were varying levels of interoperability within facilities that had more than one system in operation. We only saw one in-patient EHR system in use although many vendors and hospital administrators we interviewed were planning to adopt or support such systems. From the user perspective, issues such as system usability, adequate training, availability of adequate infrastructure and system support emerged. From the vendor perspective, a wide range of services was available to the hospital though constrained by funding and the need to computerise service areas that were deemed as priority. Additionally, vendors were unable to implement some data sharing modules linking to national HMIS due to lack of appropriate policies to facilitate this and users’ lack of confidence in new technologies such as cloud services. CONCLUSIONS EHR adoption in Kenya has been underway for some years, particularly in comprehensive care clinics, and hospitals are increasing purchasing systems to support administrative functions. Considerable support from government, donors and regional health informatics organisations will be required to enable hospitals to move to full EHR adoption for in-patient care.


2019 ◽  
Vol 15 (1) ◽  
pp. 6-13 ◽  
Author(s):  
Tanya Buchanan ◽  
Christopher A. Magee ◽  
Peter J. Kelly

AbstractIntroductionHard-core smokers have been identified as a potential public health challenge. The trans-theoretical model lacks the specificity to identify hard-core smokers. The precaution adoption process model (PAPM) is a stage-based behaviour change model which includes ‘no intent to quit’ as a distinct stage and so may be useful in identifying hard-core smokers.AimsThe aim of this study was to apply the PAPM to a community based sample of smokers to determine whether it provides a useful approach to identifying hard-core smokers.MethodsWe surveyed smokers in Australia who were recruited through social media and an online data collection agency.ResultsThe sample included 336 current smokers, 11.9% were in Stage 4 of the PAPM – i.e. had decided not to quit. Stage 4 smokers are more resistant to quitting and marked by their similarities to hard-core smokers. This is further amplified when addressing Stage 4 smokers with no previous quit attempt.ConclusionsStage 4 smokers with no previous quit attempts are aligned with a hard-core smoker profile with higher levels of nicotine dependence, greater cigarette consumption and low socio-economic status. Further research is required to determine if PAPM is a valid predictive model for identifying hard-core smokers in clinical practice.


2020 ◽  
Vol 20 (4) ◽  
pp. 717-725 ◽  
Author(s):  
Vidar Thomée

AbstractFor a spatially periodic convection-diffusion problem, we analyze a time stepping method based on Lie splitting of a spatially semidiscrete finite element solution on time steps of length k, using the backward Euler method for the diffusion part and a stabilized explicit forward Euler approximation on {m\geq 1} intervals of length {k/m} for the convection part. This complements earlier work on time splitting of the problem in a finite difference context.


2020 ◽  
Vol 28 (3) ◽  
pp. 147-160
Author(s):  
Andrea Bonito ◽  
Diane Guignard ◽  
Ashley R. Zhang

AbstractWe consider the numerical approximation of the spectral fractional diffusion problem based on the so called Balakrishnan representation. The latter consists of an improper integral approximated via quadratures. At each quadrature point, a reaction–diffusion problem must be approximated and is the method bottle neck. In this work, we propose to reduce the computational cost using a reduced basis strategy allowing for a fast evaluation of the reaction–diffusion problems. The reduced basis does not depend on the fractional power s for 0 < smin ⩽ s ⩽ smax < 1. It is built offline once for all and used online irrespectively of the fractional power. We analyze the reduced basis strategy and show its exponential convergence. The analytical results are illustrated with insightful numerical experiments.


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