The Experts below are selected from a list of 13137 Experts worldwide ranked by ideXlab platform
Noam Sobel - One of the best experts on this subject based on the ideXlab platform.
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A specialized odor memory buffer in primary olfactory cortex. PLoS One (2009
2016Co-Authors: Christina Zelano, Rehan Khan, Jessica Montag, Noam SobelAbstract:Background: The neural substrates of olfactory working memory are unknown. We addressed the questions of whether olfactory working memory involves a verbal representation of the odor, or a sensory image of the odor, or both, and the location of the neural substrates of these processes. Methodology/Principal Findings: We used functional magnetic resonance imaging to measure activity in the brains of subjects who were remembering either nameable or unnameable odorants. We found a double dissociation whereby remembering nameable odorants was reflected in sustained activity in prefrontal language areas, and remembering unnameable odorants was reflected in sustained activity in primary olfactory cortex. Conclusions/Significance: These findings suggest a novel dedicated mechanism in primary olfactory cortex, where odor information is maintained in Temporary Storage to subserve ongoing tasks
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a specialized odor memory buffer in primary olfactory cortex
PLOS ONE, 2009Co-Authors: Christina Zelano, Jessica Lena Montag, Rehan M Khan, Noam SobelAbstract:Background The neural substrates of olfactory working memory are unknown. We addressed the questions of whether olfactory working memory involves a verbal representation of the odor, or a sensory image of the odor, or both, and the location of the neural substrates of these processes. Methodology/Principal Findings We used functional magnetic resonance imaging to measure activity in the brains of subjects who were remembering either nameable or unnameable odorants. We found a double dissociation whereby remembering nameable odorants was reflected in sustained activity in prefrontal language areas, and remembering unnameable odorants was reflected in sustained activity in primary olfactory cortex. Conclusions/Significance These findings suggest a novel dedicated mechanism in primary olfactory cortex, where odor information is maintained in Temporary Storage to subserve ongoing tasks.
Alan D Baddeley - One of the best experts on this subject based on the ideXlab platform.
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the episodic buffer a new component of working memory
Trends in Cognitive Sciences, 2000Co-Authors: Alan D BaddeleyAbstract:In 1974, Baddeley and Hitch proposed a three-component model of working memory. Over the years, this has been successful in giving an integrated account not only of data from normal adults, but also neuropsychological, developmental and neuroimaging data. There are, however, a number of phenomena that are not readily captured by the original model. These are outlined here and a fourth component to the model, the episodic buffer, is proposed. It comprises a limited capacity system that provides Temporary Storage of information held in a multimodal code, which is capable of binding information from the subsidiary systems, and from long-term memory, into a unitary episodic representation. Conscious awareness is assumed to be the principal mode of retrieval from the buffer. The revised model differs from the old principally in focussing attention on the processes of integrating information, rather than on the isolation of the subsystems. In doing so, it provides a better basis for tackling the more complex aspects of executive control in working memory.
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the fractionation of working memory
Proceedings of the National Academy of Sciences of the United States of America, 1996Co-Authors: Alan D BaddeleyAbstract:In performing many complex tasks, it is necessary to hold information in Temporary Storage to complete the task. The system used for this is referred to as working memory. Evidence for the need to postulate separable memory systems is summarized, and one particular model of working memory is described, together with its fractionation into three principal subsystems. The model has proved durable and useful and, with the development of electrophysiological and positive emission tomography scanning measures, is proving to map readily onto recent neuroanatomical developments.
Annie Levasseur - One of the best experts on this subject based on the ideXlab platform.
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biogenic carbon and Temporary Storage addressed with dynamic life cycle assessment
Journal of Industrial Ecology, 2013Co-Authors: Annie Levasseur, Manuele Margni, Pascal Lesage, Rejean SamsonAbstract:Summary A growing tendency in policy making and carbon footprint estimation gives value to Temporary carbon Storage in biomass products or to delayed greenhouse gas (GHG) emissions. Some life cycle-based methods, such as the British publicly available specification (PAS) 2050 or the recently published European Commission's International Reference Life Cycle Data System (ILCD) Handbook, address this issue. This article shows the importance of consistent consideration of biogenic carbon and timing of GHG emissions in life cycle assessment (LCA) and carbon footprint analysis. We use a fictitious case study assessing the life cycle of a wooden chair for four end-of-life scenarios to compare different approaches: traditional LCA with and without consideration of biogenic carbon, the PAS 2050 and ILCD Handbook methods, and a dynamic LCA approach. Reliable results require accounting for the timing of every GHG emission, including biogenic carbon flows, as soon as a benefit is given for temporarily storing carbon or delaying GHG emissions. The conclusions of a comparative LCA can change depending on the time horizon chosen for the analysis. The dynamic LCA approach allows for a consistent assessment of the impact, through time, of all GHG emissions (positive) and sequestration (negative). The dynamic LCA is also a valuable approach for decision makers who have to understand the sensitivity of the conclusions to the chosen time horizon.
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key issues and options in accounting for carbon sequestration and Temporary Storage in life cycle assessment and carbon footprinting
International Journal of Life Cycle Assessment, 2013Co-Authors: Miguel Brandao, Annie Levasseur, Miko U F Kirschbaum, Bo Pedersen Weidema, Annette Cowie, Susanne Vedel Jorgensen, Michael Zwicky Hauschild, David Pennington, Kirana ChomkhamsriAbstract:Purpose Biological sequestration can increase the carbon stocks of non-atmospheric reservoirs (e.g. land and land-based products). Since this contained carbon is sequestered from, and retained outside, the atmosphere for a period of time, the concentration of CO2 in the atmosphere is temporarily reduced and some radiative forcing is avoided. Carbon removal from the atmosphere and Storage in the biosphere or anthroposphere, therefore, has the potential to mitigate climate change, even if the carbon Storage and associated benefits might be Temporary. Life cycle assessment (LCA) and carbon footprinting (CF) are increasingly popular tools for the environmental assessment of products, that take into account their entire life cycle. There have been significant efforts to develop robust methods to account for the benefits, if any, of sequestration and Temporary Storage and release of biogenic carbon. However, there is still no overall consensus on the most appropriate ways of considering and quantifying it.
Kirana Chomkhamsri - One of the best experts on this subject based on the ideXlab platform.
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key issues and options in accounting for carbon sequestration and Temporary Storage in life cycle assessment and carbon footprinting
International Journal of Life Cycle Assessment, 2013Co-Authors: Miguel Brandao, Annie Levasseur, Miko U F Kirschbaum, Bo Pedersen Weidema, Annette Cowie, Susanne Vedel Jorgensen, Michael Zwicky Hauschild, David Pennington, Kirana ChomkhamsriAbstract:Purpose Biological sequestration can increase the carbon stocks of non-atmospheric reservoirs (e.g. land and land-based products). Since this contained carbon is sequestered from, and retained outside, the atmosphere for a period of time, the concentration of CO2 in the atmosphere is temporarily reduced and some radiative forcing is avoided. Carbon removal from the atmosphere and Storage in the biosphere or anthroposphere, therefore, has the potential to mitigate climate change, even if the carbon Storage and associated benefits might be Temporary. Life cycle assessment (LCA) and carbon footprinting (CF) are increasingly popular tools for the environmental assessment of products, that take into account their entire life cycle. There have been significant efforts to develop robust methods to account for the benefits, if any, of sequestration and Temporary Storage and release of biogenic carbon. However, there is still no overall consensus on the most appropriate ways of considering and quantifying it.
Jun Ota - One of the best experts on this subject based on the ideXlab platform.
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design of warehouse including Temporary Storage using queuing network theory
Systems Man and Cybernetics, 2013Co-Authors: Motoyuki Ozaki, Toshimitsu Higashi, Tatsunori Hara, Jun OtaAbstract:In warehouse design, designers have to consider complex systems including Temporary Storage area, where loads are placed when they are passed from one machine to another. In this paper, a queuing network model is proposed to calculate the Temporary Storage area required for a warehouse. Previously, the warehouse design was made difficult because the design constraints and parameters were inter-related. In this paper, warehouse system is modeled as a network of nodes and the Temporary Storage area is expressed as a queue within each node. We used a typical warehouse system as a case study to evaluate the effectiveness of this design method. The proposed method can simultaneously determine the required Temporary Storage area, number of machines and long term Storage area. Layout constraints can also be taken into consideration with this method.
