1,048 research outputs found
Functional fish: improving nutrition for the elderly
Elder people need highly digestible foods that can also provide health benefits even to those suffering from chronic diseases.
Furthermore, such foods should be palatable as well as familiar for elder consumers. Fish is a high-protein, low-fat food that
potentially provides a range of health promoting effects which may be further improved with suitable approaches in the
production systems. The present mini-review intends to report possible aquaculture interventions to enhance the positive
impact of fish on elder health and to promote its function in terms of prevention and recovery of specific diseases. Some fish
species during their lifespan experience periods of food restrictions that can be mimicked in aquaculture without affecting
fish welfare. Under these circumstances fish can modify the fatty acid profile and increase the use of muscle proteins to fulfill
their energy requirements, by activation of muscle endogenous proteases. Degradation of muscle proteins can enhance their
digestibility and possibly the release of encrypted bioactive peptides, showing a plethora of biological actions, including the
antihypertensive activity. The degree of myofibrillar protein degradation and the fatty acid profile of fish fillet can then be
managed by suitable and sustainable feeding protocols in the context of farming conditions
The nature and consequences of false memories for visual stimuli
Different theoretical views exist regarding whether false memories contain perceptual information or are merely conceptual in nature. To address this question, we conducted three experiments to examine whether false memories for pictures had a priming effect on a perceptual closure task. In Experiment 1, participants were presented with pictorial versions of Deese/Roediger - McDermott (DRM) lists and received a recognition task. Finally, in the perceptual closure task (PCT), participants were shown degraded pictures (studied pictures, critical pictures , unrelated pictures) that became clearer over time and had to identify the object depicted as quickly as possible. The results showed that false memories for pictures did not exhibit a priming effect in the PCT. Specifically, picture identifications based on false memories for visual stimuli were significantly slower than those based on true memories and the former did not differ from that of unrelated items . In Experiments 2 and 3, we manipulated the modality (ve rbal vs. pictorial) of the study phase and the PCT phase . In both experiments , false memories for pictures primed pictures significantly slower than true memories in the pictorial PCT, but false memories for pictures primed words faster than true memories in the verbal PCT. Our results suggest that false memories for pictures are unlikely to contain perceptual information but rather that they are conceptual in nature
The nature and consequences of false memories for visual stimuli
Different theoretical views exist regarding whether false memories contain perceptual information or are merely conceptual in nature. To address this question, we conducted three experiments to examine whether false memories for pictures had a priming effect on a perceptual closure task. In Experiment 1, participants were presented with pictorial versions of Deese/Roediger - McDermott (DRM) lists and received a recognition task. Finally, in the perceptual closure task (PCT), participants were shown degraded pictures (studied pictures, critical pictures , unrelated pictures) that became clearer over time and had to identify the object depicted as quickly as possible. The results showed that false memories for pictures did not exhibit a priming effect in the PCT. Specifically, picture identifications based on false memories for visual stimuli were significantly slower than those based on true memories and the former did not differ from that of unrelated items . In Experiments 2 and 3, we manipulated the modality (ve rbal vs. pictorial) of the study phase and the PCT phase . In both experiments , false memories for pictures primed pictures significantly slower than true memories in the pictorial PCT, but false memories for pictures primed words faster than true memories in the verbal PCT. Our results suggest that false memories for pictures are unlikely to contain perceptual information but rather that they are conceptual in nature
Решение задачи обеспечения живучести корпоративных информационных систем при частичном разрушении каналов связи
Рассмотрена задача обеспечения живучести корпоративных информационных систем при частичном разрушении каналов связи. Описан метод перенаправления информационных потоков по дугам сети, имеющим резервы по пропускной способности. Приведен алгоритм сведения решения поставленной задачи к решению задачи максимизации многопродуктовых потоков.Розглянуто задачу забезпечення живучості корпоративних інформаційних систем при частковому руйнуванні каналів зв’язку. Описано метод перенапрямку інформаційних потоків дугами мережі, що мають резерви по пропускній здатності. Наведено алгоритм зведення розв’язання поставленої задачі до розв’язання задачі максимізації багатопродуктових потоків.The problem of ensuring the survivability of corporate information systems at partial destruction of communication links is considered. A method of redirection of information flows to network arcs with capacity reserves is described. An algorithm of bringing the solution of a formulation problem to the solution of a maximization problem for multicommodity network flows is given
Mesh Neural Networks for SE(3)-Equivariant Hemodynamics Estimation on the Artery Wall
Computational fluid dynamics (CFD) is a valuable asset for patient-specific
cardiovascular-disease diagnosis and prognosis, but its high computational
demands hamper its adoption in practice. Machine-learning methods that estimate
blood flow in individual patients could accelerate or replace CFD simulation to
overcome these limitations. In this work, we consider the estimation of
vector-valued quantities on the wall of three-dimensional geometric artery
models. We employ group-equivariant graph convolution in an end-to-end
SE(3)-equivariant neural network that operates directly on triangular surface
meshes and makes efficient use of training data. We run experiments on a large
dataset of synthetic coronary arteries and find that our method estimates
directional wall shear stress (WSS) with an approximation error of 7.6% and
normalised mean absolute error (NMAE) of 0.4% while up to two orders of
magnitude faster than CFD. Furthermore, we show that our method is powerful
enough to accurately predict transient, vector-valued WSS over the cardiac
cycle while conditioned on a range of different inflow boundary conditions.
These results demonstrate the potential of our proposed method as a plugin
replacement for CFD in the personalised prediction of hemodynamic vector and
scalar fields.Comment: Preprint. Under Revie
A framework of issues in large process modeling projects
As process management projects have increased in size due to globalised and company-wide initiatives, a corresponding growth in the size of process modeling projects can be observed. Despite advances in languages, tools and methodologies, several aspects of these projects have been largely ignored by the academic community. This paper makes a first contribution to a potential research agenda in this field by defining the characteristics of large-scale process modeling projects and proposing a framework of related issues. These issues are derived from a semi-structured interview and six focus groups conducted in Australia, Germany and the USA with enterprise and modeling software vendors and customers. The focus groups confirm the existence of unresolved problems in business process modeling projects. The outcomes provide a research agenda which directs researchers into further studies in global process management, process model decomposition and the overall governance of process modeling projects. It is expected that this research agenda will provide guidance to researchers and practitioners by focusing on areas of high theoretical and practical relevance
Effect of heat stress on dairy cow performance and on expression of protein metabolism genes in mammary cells
The aim of this study was to assess the effect of heat stress on dairy cow performance and on the expression of selected genes involved in milk protein metabolism. Eight Italian Holstein Friesian cows were kept under thermoneutral conditions (temperature\u2013humidity index (THI) 0.05), CSN3 (p > 0.05), HSPA8 (p > 0.05), and STAT5B (p > 0.05) mRNA. Mild heat stress reduced the performance of dairy cows without affecting the expression of genes coding for caseins
From Teamchef Arminius to Hermann Junior: glocalised discourse about a national foundation myth
If for much of the nineteenth and twentieth centuries, the ‘Battle of the Teutoburg Forest’, fought in 9 CE between Roman armies and Germanic tribes, was predominantly a reference point for nationalist and chauvinist discourses in Germany, the first decade of the twenty-first century has seen attempts to link public remembrance with local/regional identities on the one hand and international/intercultural contact on the other. In the run up to and during the ‘anniversary year’ of 2009, German media, sports institutions and various other official institutions articulating tourist, economic and political interests attempted to create a new ‘glocalised’ version of the public memory of the Teutoburg battle. Combining methods of Cognitive Linguistics and Critical Discourse Analysis, the paper analyses the narrative and argumentative topoi employed in this re-orientation of public memory, with a special emphasis on hybrid, post-national identity-construction. Das zweitausendjährige Gedenkjahr der „Schlacht im Teutoburger Wald“ im Jahr 2009 bot eine günstige Gelegenheit, die bis in die zweite Hälfte des 20. Jahrhunderts dominante Tradition nationalistisch–chauvinistischer Deutungen des Sieges von germanischen Stämmen über drei römische Legionen zu korrigieren und zu überwinden. Der Aufsatz analysiert mit Hilfe diskurslinguistischer Methoden die Anstrengungen regionaler Institutionen und Medien, die nationale Vereinnahmung des historischen Gedenkens kritisch zu thematisieren sowie neue, zum eine lokal situierte, zum andern international orientierte Identifikationsangebote anzubieten. Die Analyse zeigt, dass solche „de-nationalisierten“ Identifikationsangebote zwar teilweise auch früher verwendet wurden, aber heutzutage rekontextualisiert und auf innovative Weise in den Vordergrund gestellt werden
Integrated Circuit Design in US High-Energy Physics
This whitepaper summarizes the status, plans, and challenges in the area of
integrated circuit design in the United States for future High Energy Physics
(HEP) experiments. It has been submitted to CPAD (Coordinating Panel for
Advanced Detectors) and the HEP Community Summer Study 2013(Snowmass on the
Mississippi) held in Minnesota July 29 to August 6, 2013. A workshop titled: US
Workshop on IC Design for High Energy Physics, HEPIC2013 was held May 30 to
June 1, 2013 at Lawrence Berkeley National Laboratory (LBNL). A draft of the
whitepaper was distributed to the attendees before the workshop, the content
was discussed at the meeting, and this document is the resulting final product.
The scope of the whitepaper includes the following topics: Needs for IC
technologies to enable future experiments in the three HEP frontiers Energy,
Cosmic and Intensity Frontiers; Challenges in the different technology and
circuit design areas and the related R&D needs; Motivation for using different
fabrication technologies; Outlook of future technologies including 2.5D and 3D;
Survey of ICs used in current experiments and ICs targeted for approved or
proposed experiments; IC design at US institutes and recommendations for
collaboration in the future
Dynamic reconfiguration of human brain networks during learning
Human learning is a complex phenomenon requiring flexibility to adapt
existing brain function and precision in selecting new neurophysiological
activities to drive desired behavior. These two attributes -- flexibility and
selection -- must operate over multiple temporal scales as performance of a
skill changes from being slow and challenging to being fast and automatic. Such
selective adaptability is naturally provided by modular structure, which plays
a critical role in evolution, development, and optimal network function. Using
functional connectivity measurements of brain activity acquired from initial
training through mastery of a simple motor skill, we explore the role of
modularity in human learning by identifying dynamic changes of modular
organization spanning multiple temporal scales. Our results indicate that
flexibility, which we measure by the allegiance of nodes to modules, in one
experimental session predicts the relative amount of learning in a future
session. We also develop a general statistical framework for the identification
of modular architectures in evolving systems, which is broadly applicable to
disciplines where network adaptability is crucial to the understanding of
system performance.Comment: Main Text: 19 pages, 4 figures Supplementary Materials: 34 pages, 4
figures, 3 table
- …