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The stability properties of a periodically loaded non-linear dynamic system are investigated and special attention is given to damping effects. Advantage is taken of the Floquet theory and the FE-approach is applied to a hinged beam where the damping is described by a standard material model and where even damping effects at the hinges are considered. Comparisons are made with experimental results

This study examined the control of voice intensity using acoustic and aerodynamic recordings. A total of 34 subjects participated half of them with and half without song training, 21 females and 13 males. The subjects produced the syllable sequence /papapa/ while the acoustic signal, the oral air flow and the oral air pressure were recorded using the Kay-Pentax Phonatory Aerodynamic System. The or

Surgical mortality data are collected routinely in high-income countries, yet virtually no low- or middle-income countries have outcome surveillance in place. The aim was prospectively to collect worldwide mortality data following emergency abdominal surgery, comparing findings across countries with a low, middle or high Human Development Index (HDI). Methods: This was a prospective, multicentre,

PISA results show that a considerable number of 15-year-old pupils after 8 to 10 years of schooling have a low level of functional reading literacy, as defined in the PISA framework. While PISA results help identify the level of reading competency, they do not reveal what might be the reasons why some students fail to solve the tasks. One way to explore the difficulties students encounter while so

Heritopia explores the multiple meanings of the past in the present, using the famous temples of Abu Simbel and other World Heritage sites as points of departure. It employs three perspectives in its attempt to understand and explain both past and present: the truth of knowledge, the beauties of narrative, and ethical demands. Crisis theories are rejected as nostalgic expressions of contemporary s

Aim: This paper presents an implementation study following previous research including a randomised controlled trial (RCT) of hospital-based home care (HBHC), referring to specialist care in a home-based setting. The aim was to evaluate whether the effects sustained when rolled out into wider practice. Methods: In 2013–2014, 42 children newly diagnosed type 1 diabetes were included in the study at

Objective: The objective of this study was to examine the associations between socioeconomic/Occupational factors and histologic subtypes of leukemia. Methods: The Swedish Family-Cancer Database was used to calculate standardized incidence ratios for different social classes and occupational groups. Results: The overall standardized incidence ratio was close to unity between different socioeconomi

Objectives: We sought to examine the associations between occupation and upper aerodigestive tract cancers at various anatomic sites. Methods: The Swedish Family-Cancer Database was used to calculate standardized incidence ratios for different occupational groups, adjusted for age, period, and socioeconomic status. Results: Male dentists showed an increased risk for tongue cancer; hairdressers had

Objective: The objective of this study was to examine the associations between socioeconomic/occupational factors and pancreatic cancer. Methods: The Swedish Family-Cancer Database was used to calculate standardized incidence ratios for different social classes and occupational groups. Lung cancer risks were also determined. The reference group was all the economically active population. Results:

In the drop volume method the surface of the drop enlarges throughout the process of the interfacial tension decay. This surface expansion has been measured for drops of various sizes and shapes, where the interfacial tension depression was caused by different proteins such as lysozyme, β-lactoglobulin, bovine serum albumin, sodium caseinate, whey protein concentrate and soy protein isolate at dif