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Localized high-order consensus destabilizes large-scale networks

We study the problem of distributed consensus in networks where the local agents have high-order (n ≥ 3) integrator dynamics, and where all feedback is localized in that each agent has a bounded number of neighbors. We prove that no consensus algorithm based on relative differences between states of neighboring agents can then achieve consensus in networks of any size. That is, while a given algor

Osteoporotic fractures in second-generation immigrants and Swedish natives

Summary: In this national study of osteoporotic fractures in second-generation immigrants in Sweden, we found a similar risk of osteoporotic fractures in general compared to Swedish natives, which suggests that environmental factors are important for the high risk of osteoporotic fractures in Nordic countries. Introduction: Second generation immigrants may have a similar environment as individuals

A latent class analysis of changes in adolescent substance use between 1988 and 2011 in Sweden : associations with sex and psychosomatic problems

AIMS: To characterize changes in patterns of adolescent substance use in Sweden between 1988 and 2011, and to assess whether sex and psychosomatic problems were associated with substance use and whether these associations changed over time.DESIGN: Secondary analysis of repeated cross-sectional survey data. Survey data were collected eight times and analyzed as four cohorts (1988-91, 1995-98, 2002-

Towards explaining time trends in adolescents' alcohol use : a multilevel analysis of Swedish data from 1988 to 2011

BACKGROUND: Alcohol use has decreased among Swedish adolescents in the past few decades. We examined peer and parent factors (i.e. time spent with peers, time spent with parents and parental monitoring) that could contribute to explaining this trend by investigating their main effects and interaction effects with investigation years on alcohol use. We furthermore examined whether municipality-leve

Neurotransmitter Release of Reprogrammed Cells Using Electrochemical Detection Methods

The detection of neurotransmitter release from reprogrammed human cell is an important demonstration of their functionality. Electrochemistry has the distinct advantages over alternative methods that it allows for the measuring of the analyte of interest at a high temporal resolution. This is necessary for fast events, such as neurotransmitter release and reuptake, which happen in the order of mil

Coriolis and buoyancy effects on heat transfer in viewpoint of field synergy principle and secondary flow intensity for maximization of internal cooling

The present investigation emphases on rotation effects on internal cooling of gas turbine blades both numerically and experimentally. The primary motivation behind this work is to investigate the possibility of heat transfer enhancement by dean vortices generated by Coriolis force and U-bend with developing turbulent in the view point of the field synergy principle and secondary flow intensity ana

Vitryssland eller Belarus? : Namnskick, långdistansnationalism och identitetspolitik

In 2019, the Swedish government officially switched terminology from using the traditional endogenous term Vitryssland to the exogenous Belarus. Vitryssland (lit: White Russia) had been in use in the Swedish language since the 17th century, and the decision was neither easy nor swift. There was no consensus about the utility of the change, and significant opposition from linguists and editors agai

PulLingBils

PulLingBils, a comprovisation focused on airflow.

Beyond search and communication: Development and validation of the Internet Self-efficacy Scale (ISS)

Internet self-efficacy is a pivotal construct for understanding a wide range of online activities. Human activity has been developing in new directions along with the evolution of the Internet over the last few decades. A self-efficacy measure which might appropriately reflect these changes is still lacking in the literature. To address this research gap, the current study developed the Internet S

Classroom Disorder and Internalizing Problems Among Swedish Adolescents : Changes Between 1988 and 2011

BACKGROUND: Internalizing problems have increased among Swedish adolescents. We examined whether classroom disorder was associated with internalizing problems and whether it explained the trends in internalizing problems. Furthermore, we examined whether school contextual factors were associated with internalizing problems and whether they moderated the association between classroom disorder and i

Connecting agents : Engagement and motivation in online collaboration

Abstract This paper explores the relationship between social engagement and motivation to share knowledge in a hybrid college class using a web infused curriculum. Online social engagement, operationalized through concepts such as connectivity, social presence and social space has been an important topic of research in web based education for more than a decade. An important sub-text of this resea

Association of single nucleotide polymorphisms with insulin secretion, insulin sensitivity, and diabetes in women with a history of gestational diabetes mellitus

Background: This study investigated whether single nucleotide polymorphisms (SNPs) reported by previous genome-wide association studies (GWAS) to be associated with impaired insulin secretion, insulin resistance, and/or type 2 diabetes are associated with disposition index, the homeostasis model assessment of insulin resistance (HOMA-IR), and/or development of diabetes following a pregnancy compli

Quality of life and long-term clinical outcome following robot-assisted radical trachelectomy

Quality of Life and long-term clinical outcome following robot-assisted radical trachelectomy. Objectives: To evaluate quality of life (QoL) and long-term clinical outcome following robot-assisted radical trachelectomy (RRT). Study Design: Prospectively retrieved clinical data were rereviewed on all women planned for a fertility sparing RRT for early stage cervical cancer at Skåne University Hospi

Generalized modulation theory for strongly nonlinear gravity waves in a compressible atmosphere

This study investigates strongly nonlinear gravity waves in the compressible atmosphere from the Earth’s surface to the deep atmosphere. These waves are effectively described by Grimshaw’s dissipative modulation equations which provide the basis for finding stationary solutions such as mountain lee waves and testing their stability in an analytic fashion. Assuming energetically consistent boundary