Spatial bus priority schemes, implementation challenges and needs: an overview and directions for future studies

2018 ◽  
Vol 10 (3) ◽  
pp. 545-570 ◽  
Author(s):  
Nima Dadashzadeh ◽  
Murat Ergun
1999 ◽  
Vol 16 ◽  
pp. 927-932
Author(s):  
Makoto OHARA ◽  
Kunihiro SAKAMOTO ◽  
Hisashi KUBOTA ◽  
Yoji TAKAHASHI

2000 ◽  
Vol 17 ◽  
pp. 885-892
Author(s):  
Naoki SUZUKI ◽  
Kunihiro SAKAMOTO ◽  
Hisashi KUBOTA

2018 ◽  
Vol 2 (4) ◽  
Author(s):  
Todd Molfenter ◽  
Mike Boyle ◽  
Don Holloway ◽  
Janet Zwick

Methods: A project conducted from February 2013 to June 2014 investigated the adoption of telemedicine services among purchasers of addiction treatment in five states and one county. The project assessed purchasers’ interest in and perceived facilitators and barriers to implementing one or more of the following telemedicine modalities: telephone-based care, web-based screening, web-based treatment, videoconferencing, smartphone mobile applications (apps), and virtual worlds. Results: Purchasers expressed the most interest in implementing videoconferencing and smartphone mobile devices. Anticipated facilitators for implementing a telemedicine app included funding available to pay for the telemedicine service, local examples of success, influential champions at the payer and treatment agencies, and meeting a pressing need. Greatest barriers identified were costs associated with implementation, lack of reimbursement for telemedicine services, providers’ unfamiliarity with technology, lack of implementation models, and confidentiality regulations. Conclusions: Despite the considerable interest in telemedicine, implementation challenges exist. Future studies should broaden the sample analyzed and track technology implementation longitudinally to help the research and practitioner communities develop a greater understanding of technology implementation trends and practices.


2001 ◽  
Vol 18 ◽  
pp. 869-876 ◽  
Author(s):  
Naoki SUZUKI ◽  
Kunihiro SAKAMOTO ◽  
Hisashi KUBOTA

Author(s):  
V. Kriho ◽  
H.-Y. Yang ◽  
C.-M. Lue ◽  
N. Lieska ◽  
G. D. Pappas

Radial glia have been classically defined as those early glial cells that radially span their thin processes from the ventricular to the pial surfaces in the developing central nervous system. These radial glia constitute a transient cell population, disappearing, for the most part, by the end of the period of neuronal migration. Traditionally, it has been difficult to definitively identify these cells because the principal criteria available were morphologic only.Using immunofluorescence microscopy, we have previously defined a phenotype for radial glia in rat spinal cord based upon the sequential expression of vimentin, glial fibrillary acidic protein and an intermediate filament-associated protein, IFAP-70/280kD. We report here the application of another intermediate filament-associated protein, IFAP-300kD, originally identified in BHK-21 cells, to the immunofluorescence study of radial glia in the developing rat spinal cord.Results showed that IFAP-300kD appeared very early in rat spinal cord development. In fact by embryonic day 13, IFAP-300kD immunoreactivity was already at its peak and was observed in most of the radial glia which span the spinal cord from the ventricular to the subpial surfaces (Fig. 1). Interestingly, from this time, IFAP-300kD immunoreactivity diminished rapidly in a dorsal to ventral manner, so that by embryonic day 16 it was detectable only in the maturing macroglial cells in the marginal zone of the spinal cord and the dorsal median septum (Fig. 2). By birth, the spinal cord was essentially immuno-negative for this IFAP. Thus, IFAP-300kD appears to be another differentiation marker available for future studies of gliogenesis, especially for the early stages of radial glia differentiation.


2013 ◽  
Vol 55 ◽  
pp. 119-131 ◽  
Author(s):  
Bernadette Carroll ◽  
Graeme Hewitt ◽  
Viktor I. Korolchuk

Autophagy is a process of lysosome-dependent intracellular degradation that participates in the liberation of resources including amino acids and energy to maintain homoeostasis. Autophagy is particularly important in stress conditions such as nutrient starvation and any perturbation in the ability of the cell to activate or regulate autophagy can lead to cellular dysfunction and disease. An area of intense research interest is the role and indeed the fate of autophagy during cellular and organismal ageing. Age-related disorders are associated with increased cellular stress and assault including DNA damage, reduced energy availability, protein aggregation and accumulation of damaged organelles. A reduction in autophagy activity has been observed in a number of ageing models and its up-regulation via pharmacological and genetic methods can alleviate age-related pathologies. In particular, autophagy induction can enhance clearance of toxic intracellular waste associated with neurodegenerative diseases and has been comprehensively demonstrated to improve lifespan in yeast, worms, flies, rodents and primates. The situation, however, has been complicated by the identification that autophagy up-regulation can also occur during ageing. Indeed, in certain situations, reduced autophagosome induction may actually provide benefits to ageing cells. Future studies will undoubtedly improve our understanding of exactly how the multiple signals that are integrated to control appropriate autophagy activity change during ageing, what affect this has on autophagy and to what extent autophagy contributes to age-associated pathologies. Identification of mechanisms that influence a healthy lifespan is of economic, medical and social importance in our ‘ageing’ world.


2020 ◽  
Vol 48 (2) ◽  
pp. 429-439 ◽  
Author(s):  
Jorge Gago ◽  
Danilo M. Daloso ◽  
Marc Carriquí ◽  
Miquel Nadal ◽  
Melanie Morales ◽  
...  

Besides stomata, the photosynthetic CO2 pathway also involves the transport of CO2 from the sub-stomatal air spaces inside to the carboxylation sites in the chloroplast stroma, where Rubisco is located. This pathway is far to be a simple and direct way, formed by series of consecutive barriers that the CO2 should cross to be finally assimilated in photosynthesis, known as the mesophyll conductance (gm). Therefore, the gm reflects the pathway through different air, water and biophysical barriers within the leaf tissues and cell structures. Currently, it is known that gm can impose the same level of limitation (or even higher depending of the conditions) to photosynthesis than the wider known stomata or biochemistry. In this mini-review, we are focused on each of the gm determinants to summarize the current knowledge on the mechanisms driving gm from anatomical to metabolic and biochemical perspectives. Special attention deserve the latest studies demonstrating the importance of the molecular mechanisms driving anatomical traits as cell wall and the chloroplast surface exposed to the mesophyll airspaces (Sc/S) that significantly constrain gm. However, even considering these recent discoveries, still is poorly understood the mechanisms about signaling pathways linking the environment a/biotic stressors with gm responses. Thus, considering the main role of gm as a major driver of the CO2 availability at the carboxylation sites, future studies into these aspects will help us to understand photosynthesis responses in a global change framework.


2017 ◽  
Vol 2 (17) ◽  
pp. 63-72
Author(s):  
Suzanna Bright ◽  
Chisomo Selemani

Functional approaches to disability measurement in Zambia reveals an overall disability prevalence rate of 13.4%, 4% of whom are recorded as having “speech impairment” (Zambia Federation of the Disabled [ZAFOD], 2006). Further, multidimensional poverty assessments indicate that 48.6% of Zambia's approximately 16 million citizens are impoverished. Currently, there are three internationally qualified speech-language pathologists (SLPs) providing services within Zambia's capital city, Lusaka. Given these statistics, it follows that a significant number of Zambian's, experiencing communication disability, are unable to access specialist assessment and support. Over the past decade, Zambia has seen two very different approaches to address this service gap—firstly, a larger scale top-down approach through the implementation of a formal master's degree program and more recently a smaller scale, bottom-up approach, building the capacity of existing professionals working in the field of communication disability. This article provides an overview of both programs and the context, unique to Zambia, in which they have developed. Authors describe the implementation challenges encountered and program successes leading to a discussion of the weakness and merits to both programs, in an attempt to draw lessons from which future efforts to support communication disability and SLP service development in Majority World contexts may benefit.


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