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Augmentation of heat transfer must always be judged against an additional pressure loss. To this context, this paper explores slitted ribs on the turbulent flow and heat transfer characteristics in rectangular cooling channels with an aspect ratio of 4:1. A verified v2f turbulence model is applied in the present numerical simulations in the Reynolds number range from 20,000 to 80,000. The flow and
Usages of the Past in Roman Historiography contains 11 articles on how the Ancient Roman historians used, and manipulated, the past. What did they seek to accomplish by participating in its re-creation, what tools did they have at their disposal to do so, and which underlying conceptualisations of history can we glimpse behind their efforts? Key themes include the impact of the transformation from
Possibilities to perform pre- and post-seismic groundwater chemical comparisons on regional groundwater flow systems are rare due to lack of data and observations. The Kumamoto earthquake provides an unusual opportunity to improve the knowledge on earthquake hydrology and earthquake effects on hydrochemistry of groundwater due to a wealth of pre- and post-quake observations. We analyzed 12 physioc
Objectives: Using a reversible multistate model, we prospectively examined neuropsychiatric (NP) events for attribution, outcome and association with health-related quality of life (HRQoL), in an international, inception cohort of systemic lupus erythematosus (SLE) patients. Methods: Annual assessments for 19 NP events attributed to SLE and non-SLE causes, physician determination of outcome and pa
Aims: The aim of this study was to test a Child-Centred Health Dialogue model for primary prevention of obesity for 4-year-old children in Child Health Services, for its feasibility and the responsiveness of its outcomes. Methods: A feasibility study was set up with a non-randomised quasi-experimental cluster design comparing usual care with a structured multicomponent Child-Centred Health Dialogu
BACKGROUND: The Child Health Services in Sweden is a well-attended health promoting setting, and thereby has an important role in promoting healthy living habits in families with young children. Due to lack of national recommendations for health dialogues, a Child Centred Health Dialogue (CCHD) model was developed and tested in two Swedish municipalities. The aim of this study was to explore paren
This thesis addresses how verbal comprehension is affected by seeing the speaker and in particular when the speaker is an animated virtual speaker. Two people visually co-present – one talking and the other listening, trying to comprehend what is said – is a central and critical scenario whether one is interested in human cognition, communication or learning. Papers I & II are focused on the e
Control systems can be vulnerable to security threats where an attacker gathers information about the execution of the system. In particular, side-channel attacks exploit the predictability of real-time control systems and of their schedules. To counteract their action, a scheduler can randomize the temporal execution of tasks and limit the amount of information the attacker can gather. Schedule r
The diversity of herbivorous insects may arise from colonization and subsequent specialization on different host plants. Such specialization requires changes in several insect traits, which may lead to host race formation if they reduce gene flow among populations that feed on different plants. Behavioural changes may play a relevant role in host race formation, for example if different races evol
Culture and discourses affect our understanding of the archive in the digital environment: preconceptions, norms, and practices developed in a paper-based administration colour and limit perceptions of digital archives. It can be difficult to reimagine the archive in the context of e-government and the networked environment, where the complexity of archival issues increases. This is a global probl
Traditionally, public records have been handled and preserved by each creating or receiving agency separately. The existing legal framework in Sweden is still based on this principle. However, recent developments – digital technologies paired with new ways of working – create a more dispersed and complex body of archives. What this means for the practical records management can be discussed. This
Lately, evidence for early-Holocene emerging sedentism has been suggested among foragers in Northern Europe. The core of this suggested sedentism lies in the increasing dependency on large-scale fishing and mass consumption of fish and a territorial behaviour associated with access to the best fishing locations. This territoriality might also be associated with increasing numbers of people settlin
