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Staying aloft when hovering and flying slowly is demanding. According to quasi-steady-state aerodynamic theory, slow-flying vertebrates should not be able to generate enough lift to remain aloft. Therefore, unsteady aerodynamic mechanisms to enhance lift production have been proposed. Using digital particle image velocimetry, we showed that a small nectar-feeding bat is able to increase lift by as
Abstract Objective. The aim of this study was to investigate recurrence and progression of non-muscle-invasive bladder cancer (NMIBC) in a large population-based setting. Materials and methods. Patients with bladder cancer (stage Ta, T1 or carcinoma in situ) diagnosed in 2004-2007 (n = 5839) in Sweden were investigated 5 years after diagnosis using a questionnaire. Differences in time to recurrenc
Background Pain at the site of intravenous injection of propofol is a common clinical finding. This double-blind, randomized cross-over study was designed to evaluate whether venous occlusion applied during injection of a low dose of propofol reduces the intensity of pain at the site of injection compared with no occlusion. Methods Bilateral 0.5-ml injections of an emulsion containing 10 mg/ml of
Earlier studies have shown that while free-viewing images people tend to gaze at regions with a high local density of bottom up features such as contrast and edge density. In particular, this tendency seems to be more emphasized during the first few fixations after image onset. In this paper, we present a new method to investigate how gaze locations are chosen by introducing varying image resoluti
Regional, national and global cities are disproportionately located on small islands and archipelagos. The spatial turn' within island and urban geography increasingly privileges abstract notions of space, yet the prevalence of big cities on small islands suggests that sensitivity to place-specific spatial factors is necessary if we are to understand both islands and the urban. Whereas previous st
There is a clinical need for improved wound treatments that prevent both infection and excessive inflammation. TCP-25, a thrombin-derived peptide, is antibacterial and scavenges pathogen-associated molecular patterns (PAMPs), such as lipopolysaccharide, thereby preventing CD14 interaction and Toll-like receptor dimerization, leading to reduced downstream immune activation. Here, we describe the de
Cities exhibit a rich and complex heterogeneity in people and activities. This poses a sizable challenge for planners when planning new neighbourhoods or the reconstruction of old ones as well as when considering the allocation of supply of and demand for amenities, e.g. kindergartens or health facilities. However, individual preferences may also exhibit common denominators that may provide struct
Objective Based on clinical experience gained over many years, the maximal haemostatic effect following administration of local anaesthetics containing epinephrine is generally believed to occur within 10 minutes. Surprisingly, it was found in a recent study, in which bleeding was quantified intraoperatively, that maximal haemostasis did not occur until 30 minutes. If this is indeed the case, the
BACKGROUND AND PURPOSE: The breast cancer susceptibility genes BRCA1 and BRCA2 interact with Rad51, one of the central components in the homologous recombination repair pathway. This study evaluates the prognostic and predictive role of BRCA1, BRCA2 and Rad51, individually and as a complex, in breast cancer.MATERIALS AND METHODS: Expression of BRCA1, BRCA2 and Rad51 was investigated using immunohi
In this paper we study the impact that political risk premiums have on market index returns in thirty-one countries. We also include the impact of exchange rates and inflation rates. Fifteen of the countries are classified as developing, and sixteen of them are classified as developed based on the World Bank classifications. These classifications play a role in the analysis as they are included as
BACKGROUND: Bacterial infection causes accumulation of neutrophils that release antimicrobial proteins including heparin-binding protein (HBP). In human airways, this neutrophil accumulation can be re-capitulated via intrabronchial exposure to lipopolysaccharide (LPS), a Toll-like receptor 4 (TLR4) agonist, that also causes a local increase in the neutrophil-mobilizing cytokine IL-26. Although LPS
The need for information about climate change is great. This information is usually based on climate model data, which often have systematic biases. Furthermore, climate information is based on ensembles of climate models, which raises the question about how such ensembles are affected by the choice of models and emission scenarios. Here, we aim to describe climate change in Sweden and neighbourin
A double-swirler ammonia/methane co-flame burner was developed to enhance flame stability and reduce NOx emissions in ammonia combustion. In this system, a premixed ammonia/air mixture is introduced through the inner swirler, while a lean premixed methane/air flame from the outer swirler stabilizes the ammonia/air flame. Experimental results highlight that the Reynolds number of the outer methane/
Home care for the elderly constitutes a large and growing part of the social welfare system. Though, home care work is associated with a number of work environment-related challenges, including an increased risk for injuries, musculoskeletal disorders, high levels of sick leave and staff turnover, as well as stress and high workload, research is sparse. The present study explores local initiatives
This policy brief looks into the role of social norms to fight corruption in the school system in the Cau Giay district in Hanoi. An ongoing research project has conducted multiple ethnographic field studies in schools and included parents, teachers, and other school personnel in the research data. Their experiences and reflections are the core of this brief. The results show the existence of info
This dissertation addresses the breakthrough of the multi-reel feature film in the United States, and the significance of this process within the wider context of the American film industry and culture in the 1910s. The purpose is to provide a new, and more comprehensive analytical framing of the topic, and to enhance our understanding of how a new central commodity, i.e. the multi-reel feature fi
Spatially segregated ecosystems are frequently subsidized by cross-habitat linkages, but the extent to which the functional links between habitats influence local community attributes, such as consumer and food web structure is still poorly understood. Using the bidirectional linkage between benthic and pelagic habitats in floodplain lakes, we address this important question by looking for evidenc
Spatially and temporally resolved measurements are of great importance in turbulent premixed flame studies, especially when investigating rapid processes such as when flame local extinction, re-ignition, or flashback occur in a reacting flow. Here, an experimental approach for simultaneously probing two different species at high frame rates (50 kHz) is presented by employing a multi-YAG laser syst
This paper explores the influence of municipal governance forms and structures on accounting compliance in municipal organisations. If municipal governance forms and structures influence accounting compliance, then understanding these relationships becomes important when discussing heterogeneous practice and efficient accounting regulation. The context and object of analysis is the practices of re
