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The study aims to develop an artificial neural networks (ANN) model to estimate the acoustic performance for airborne and impact sound insulation curves of different lightweight wooden floors. The prediction model is developed using 252 standardized laboratory measurement curves in one-third octave bands (50 − 5000 Hz). Each floor structure has been divided into three parts in the database: upper,
Quantifying air-borne and structure-borne sound insulation is an important design consideration for the indoor comfort in a building. Although sound insulation performance is commonly measured experimentally, numerical methods can have time-saving and economic benefits. Further, numerical methods can be incorporated within building simulations to provide an estimate of the acoustic environment. In
In modern industrial settings with small batch sizes it should be easy to set up a robot system for a new task. Strategies exist, e.g. the use of skills, but when it comes to handling forces and torques, these systems often fall short. We introduce an approach that provides a combination of task-level planning with targeted learning of scenario-specific parameters for skill-based systems. We propo
Right before northern hemisphere’s summer shifts to autumn small insect-eatingbirds start lengthy journeys to tropical regions. It is well established that temporarylack food and annual changes in weather are the ultimate reasons for this behavior.On a proximal level however, the process is poorly understood. Yet crosscontinental bird migration is a widespread phenomenon that has evolved severalti
Teacher shortage and turnover is a growing problem in Sweden, yet little is known about the organisational factors associated with these problems. The current study explores teachers’ experiences of organisational processes and aims to identify relevant job demands and resources linked to professional sustainability for teachers. In this study, semi-structured focus group-interviews were conducted
The growing use of mobile technologies is spawning firms’ adoption of mobile relationship-building techniques, including via mobile apps. However, despite the rapid rise of these technologies, little remains known regarding consumers’ mobile app- (vs. desktop browser) related behaviours, and this is therefore investigated in this paper. Specifically, we explore the effect of customer engagement (C
Purpose: This study investigates the mediating role of consumer engagement (CE) in the relationship between perceived behavioral control (PBC) and purchase intent and the moderating role of perceived safety in the relationship between PBC and CE in the self-driving car (SDC) context. Design/methodology/approach: To test the model, a sample of 368 consumers was deployed using partial least-squares
The emergence and rise of technology, including social media and online brand communities, have revolutionized consumer-brand interactions, thereby impacting consumer brand engagement and its outcomes. However, though social media-based brand engagement has developed into a key area of interest for brand managers, insight into its tourism-based dynamics and applications remains limited, particular
Purpose: In recent years, customer engagement (CE) with brands, which has been shown to yield enhanced firm sales, competitive advantage and stock returns, has risen to occupy a prominent position in brand management research and practice. Correspondingly, scholars have explored CE’s conceptualization, operationalization and its nomological networks as informed by different theoretical perspective
Researchers in gerontology have addressed the way age-based arrangements may communicate stereotypical and devaluing images of older people, thereby linking high age to frailty and dependence. The present article considers proposed reforms to the Swedish eldercare system designed to guarantee people over 85 the right to move into a nursing home regardless of their needs. The purpose of the article
We consider two models: one describes the particle movement under the influence of external force and friction, and another one describes the movement of a particle, which is acted upon by the same external force but it additionally collides with other particles of much lighter masses. We establish conditions for these two models to be equivalent in some sense. We also considered deterministic and
Traffic models are a useful tool for evacuation planning and management in case of wildfires. Despite the availability of several evacuation models, the number of datasets that can be used for their calibration and validation is limited. This paper presents key traffic flow data collected during the 2019 Kincade Fire. The data (69 116 data points from 24 locations) have been sourced from the Perfo
Obesity is reaching levels never seen before in the world population, causing a rise in the incidence of metabolic disorders. The increase of visceral storage of adipose tissue is related to chronic inflammation and deregulation of the metabolism, causing insulin resistance, dyslipidemia and endothelial dysfunction. These pathologies, when they appear together, are known as metabolic syndrome and
RNA based processes are in the limelight due to the current technological advances from the fields of high throughput sequencing, structural probing and super-high resolution imaging. RNA biology is implicated in wide range of processes including embryonal development, maintenance of tissue homeostasis or tumor development and progression. We now gain insights at the unprecedented level on how RNA
MLL-rearrangements (MLL-r) are recurrent genetic events in acute myeloid leukemia (AML) and frequently associate with poor prognosis. In infants, MLL-r can be sufficient to drive transformation. However, despite the prenatal origin of MLL-r in these patients, congenital leukemia is very rare with transformation usually occurring postnatally. The influence of prenatal signals on leukemogenesis, suc
BACKGROUND: In contrast with macroorganisms, that show well-documented biogeographical patterns in distribution associated with local adaptation of physiology, behavior and life history, strong biogeographical patterns have not been found for microorganisms, raising questions about what determines their biogeography. Thus far, large-scale biogeographical studies have focused on free-living microbe
Objectives: Invasive treatment of infrainguinal intermittent claudication is controversial, and long-term outcomes are scarce. The study aim was to evaluate 8 years results regarding new vascular interventions on index and contralateral limb, hospitalization, mortality, and amputation in 775 patients revascularized for infrainguinal intermittent claudication in 2009. Methods: Data on new vascular
Chronic coronary syndrome is a clinical diagnosis based on medical history and risk factors. To confirm diagnosis, an anatomical or functional assessment is recommended. Selection of diagnostic test is guided by clinical likelihood, patient characteristics, local expertise and availability. If the likelihood is low to intermediate, coronary computed tomography angiography (CCTA) is recommended; if
The morphological and biochemical studies of the hippocampal CA1 area in ApoE-deficient mice under the conditionsof dietary intake (8 weeks) with low (LF) and high (HF) fat content were performed. Methods of immunohistochemistry, light and electron microscopy, immunoassay and morphometric as well as statistical analyses were used. It was revealed that the morpho-functional state of the nerve cells
