Impacts of the indoor environment in our homes and schools on child health: A novel analysis using the EU-SILC Database

Today, more than 26 million European children are living in unhealthy homes putting them at higher risk of experiencing health problems. Our research is based on analysis of the Eurostat microdata from the EUwide survey “Income and Living Conditions in Europe” (EU-SILC). The results show that mould and dampness, as well as poor ventilation, can take a child from good health to poor health with links to higher levels of asthma, allergies, eczema, and lower and upper respiratory conditions. Across Europe, the prevalence of children affected by asthma has become an increasing problem in the last few decades. Unhealthy home environments can result in higher absence from school and work, putting a greater strain on both children, parents and the economy. Tackling the unhealthy homes, poor quality schools and day-care centres is an opportunity to improve the health and quality of life of European children.publishedVersio

Quantifying the macroeconomic cost of night-time bathroom visits: an application to the UK

Little is known on the impact that nocturia (the need to wake up at night to urinate) has on a nation’s economy. While there are many individual factors associated with inadequate sleep (e.g. bad sleep hygiene, chronic sleep disorders such as insomnia or sleep apnea), frequently having to wake up at night to urinate fragments sleep, with negative consequences on an individual’s health and well-being as well as daytime functioning. Using a large-scale UK workforce data, we estimate the prevalence of nocturia in the working population and quantify the lost worker productivity caused by nocturia, measured by absenteeism and presenteeism. This enters our multi-country general equilibrium model, which we calibrate to the UK economy, to estimate the annual macroeconomic cost of nocturia. We find the annual cost of clinically significant nocturia (waking up at least twice to urinate) is around £5.4 billion, or equivalently £1996 per worker with nocturia. This cost estimate is larger than previous estimates on the productivity effects of nocturia using cost-of-illness (COI) methods, suggesting the importance of taking into account general equilibrium effects when assessing the economic burden of health conditions

The four types of stablecoins: A comparative analysis

Stablecoins have gained significant popularity recently, with their market cap rising to over $180 billion. However, recent events have raised concerns about their stability. In this paper, we classify stablecoins into four types based on the source and management of collateral and investigate the stability of each type under different conditions. We highlight each type's potential instabilities and underlying tradeoffs using agent-based simulations. The results emphasize the importance of carefully evaluating the origin of a stablecoin's collateral and its collateral management mechanism to ensure stability and minimize risks. Enhanced understanding of stablecoins should be informative to regulators, policymakers, and investors alike

A new Approach for Structure from Motion Underwater Pile-Field Documentation

For a pilot study carried out by the University of Bern together with local partners in Summer 2018 at the pile-dwelling site Bay of Bones (Rep. of Macedonia), a new workflow for underwater pile-field documentation was developed. The site lies in shallow water of 3–5 meters depth and the most obvious constructive remains of the prehistoric settlement are thousands of wooden piles. The piles, mainly of oak and juniper, are excellently preserved in the lake sediments. The aim of the project was to document and sample 40 m2 surface area of the pile-field and the dendrochronological analysis of the samples. Dendrochronological sampling requires cutting the top-ends of the piles and thus changes the preserved situation. Therefore beforehand documentation must ensure the localization of each pile on a map. This calls for a method that ensures a) that every pile is distinctly labeled and b) the location of each pile is accurately captured. While on land, this can easily be achieved, underwater working conditions complicate common procedures. E.g. by measuring with a folding ruler from a local grid, there is later no way to evaluate measuring mistakes or the internal error of the local grid. In addition, for unpracticed divers measuring by hand underwater is not only time-consuming but also tends a lot more to erroneous results than on land. The goal was therefore to find a time-saving, accurate and easy to carry out way to locate the positions of several hundred piles in shallow water. The best solution for us to achieve these goals was a new standardized and reproducible workflow with Structure from Motion (SfM). The applied approach for underwater SfM-documentation includes on-site workflow and post-processing. The on-site workflow covers all steps from the preparation of the archaeological structures to the photographic data acquisition, the calculation of a preliminary 3D-model and its on-site verification. The crucial step was to ensure the suitability for modeling of the data before the situation underwater was irreversibly changed through sampling. Post-processing was carried out in Adobe Photoshop, Agisoft PhotoScan and QGIS where the data was optimized in quality and standardized from digital image processing to the construction of a georeferenced orthomosaic. Applying these results, we can later visualize patterns in the spatial distribution of the piles concerning e.g. their age, their size or their wood species. This will lead to answers regarding architecture, internal chronology, and in-site settlement dynamics. With this newly standardized two-step-workflow for underwater structure documentation, we are able to asses and compare the quality of each orthomosaic in a reproducible way. The presented method is highly promising for underwater-documentation of prehistoric pile-fields, yielding accurate digital plans in an efficient and cost-saving way.</p

Das neolithische Steinkistengrab von Niederried am Brienzersee

Neolithische Kistengräber des sogenannten Typs «Chamblandes» wurden bisher haupt- sächlich in der Westschweiz um den Genfersee sowie im Walliser Rhônetal und im angrenzen- den Aostatal (IT) entdeckt. In Publikationen zu diesem Grabtyp bestehen Unstimmigkeiten in Bezug auf das Grab von Ursisbalm bei Niederried am Brienzersee im Berner Oberland. Die ältere Literatur stützt sich oft auf die Publikation von Alain Gallay von 1977, der das Grab von Niederried zum Typ Chamblandes rechnet; in neueren Publikationen ist jedoch das Steinkistengrab von Niederried nicht aufgeführt oder die Fundstelle wird mit dem etwa 90 km nord-westlich gelegenen Niederried bei Kallnach im Berner Seeland verwechselt. Das Steinkistengrab von Niederried befindet sich im Vergleich zu den übrigen bekannten Gräbern dieses Typs geografisch isoliert am Brienzersee. Aus diesem Grund ist dieses bisher wenig bekannte Grab von Niederried für die Forschung von grosser Bedeutung, zumal bis heute keine weiteren neolithischen Steinkistengräber in den nördlichen Voralpen entdeckt worden sind und die geografisch nächsten vergleichbaren Fundstellen fast 100 km entfernt liegen. Über 100 Jahre nach seiner Entdeckung wird hier das Steinkistengrab von Niederried, Ursisbalm neu behandelt. Die Recherche dazu erfolgte im Rahmen eines vom Schweizerischen Nationalfonds (SNF) geförderten Dissertationsprojektes am Institut für Archäologische Wissenschaften der Universität Bern. Erstmals wurden Radiokarbondatierungen durchgeführt, mit deren Hilfe die bestatteten Individuen absolut datiert werden konnten. Anhand aller verfügbaren Informationen soll geklärt werden, ob das Grab den Definitionskriterien der neolithischen Kistengräber des Typs Chamblandes entspricht

Virtual Reality applications for visualization of 6000-year-old Neolithic graves from Lenzburg (Switzerland)

The last decade has seen a steady increase in the application of virtual 3D approaches in cultural heritage research. Although a large literature exists about the advantages of 3D methods in this field, here we go one step further and elucidate a) how image-based 3D reconstructions can be displayed in virtual reality (VR) space using freeware game engine software and low-cost VR hardware and b) highlight the relative benefits and advantages with a focus on interactive museum displays of relatively large archaeological objects. Specifically, we present three 3D models of different stone grave structures from the Neolithic necropolis of Lenzburg (Northern Switzerland, 4450-3500 BCE). The site has been excavated in 1959/60 and certain graves were subsequently preserved for museum display. By means of VR applications, it is now possible to experience these approximately 6000-year-old tombs with an innovative approach circumventing various barriers or constraints and offering interactive display options

Algal assemblages in springs of different lithologies (ophiolites vs. limestone) of the Konjuh Mountain (Bosnia and Herzegovina) - Online supplement

The biodiversity of algal communities and environmental conditions were investigated in the springs of Mt. Konjuh. The assemblages of 20 springs emerging from different lithologies (limestones and ophiolites, respectively) comprised 234 algal taxa. Diatoms and cyanobacteria were the most species-rich groups. The most common alkaliphilic, circumneutral, and eutraphentic diatoms were represented by the genera Gomphonema, Nitzschia, Navicula, Cymbella, and Achnanthidium, and by the cyanobacterial genus Phormidium. Hierarchical clustering and SIMPROF analysis based on relative algal abundance clustered springs into six groups, separating them mainly according to spring type and lithology. Indicator species for groups and springs on different lithological substrata were singled out, revealing 33 taxa with preferences for ophiolites, and 20 taxa with preferences for carbonates. The values of the Shannon-Wiener diversity index were moderately high per spring location, and similar for the two groups of springs on different lithologies. A higher similarity in species composition was noted between springs on ophiolites and limestones than between springs on ophiolites and other types of siliceous substrata. The present study suggests that algal assemblages in springs emerging from ophiolites, even those made up by a preponderance of silicates, should be analyzed separately from those related to springs on other siliceous substrata. The results obtained showed that most of the springs studied are affected by anthropogenic impacts and morphological alterations leading to the dominance of highly ompetitive meso- and eutraphentic algal species, thus emphasizing the importance of further investigation and conservation of these habitats

A new indicator approach to reconstruct agricultural land use in Europe from sedimentary pollen assemblages

The reconstruction of human impact is pivotal in palaeoecological studies, as humans are among the most important drivers of Holocene vegetation and ecosystem change. Nevertheless, separating the anthropogenic footprint on vegetation dynamics from the impact of climate and other environmental factors (disturbances such as fire, erosion, floods, landslides, avalanches, volcanic eruptions) is a challenging and still largely open issue. For this purpose, palynologists mostly rely on cultural indicator pollen types and related indices that consist of sums or ratios of these pollen types. However, the high environmental and biogeographical specificity of cultural indicator plants hinders the application of the currently available indices to wide geographical settings. Furthermore, the achievable taxonomic resolution of cultural indicator pollen types may hamper their indicative capacity. In this study, we propose the agricultural land use probability (LUP) index, a novel approach to quantify human impact intensity on European ecosystems based on cultural indicator pollen types. From the ‘classic’ cultural indicators, we construct the LUP index by selecting those with the best indicator capacity based on bioindication criteria. We first train the LUP index using twenty palynological sequences along a broad environmental gradient, spanning from treeless alpine to subtropical mediterranean evergreen plant communities. We then validate the LUP index using independent pollen datasets and archaeological proxies. Finally, we discuss the suitability of the selected pollen types and the potential of the LUP index for quantifying Holocene human impact in Europe, concluding that careful application of the LUP index may significantly contribute to refining pollen-based land-use reconstructions

Dendroarchaeology at Lake Ohrid: 5th and 2nd millennia BCE tree-ring chronologies from the waterlogged site of Ploča Mičov Grad, North Macedonia

On the prehistoric site of Ploča Mičov Grad (Ohrid, North Macedonia) on the eastern shore of Lake Ohrid a total of 799 wooden elements were recorded from a systematically excavated area of nearly 100 square meters. Most of them are pile remains of round wood with diameters up to almost 40 cm. A comprehensive dendrochronological analysis allowed the construction of numerous well-replicated chronologies for different species. High agreements between the chronologies prove that oak, pine, juniper, ash and hop-hornbeam can be cross-dated. The chronologies were dated by means of radiocarbon dating and modelling using wiggle matching. An intensive settlement phase is attested for the middle of the 5th millennium BCE. Further phases follow towards the end of the 5th millennium BCE and in the 2nd millennium around 1800, 1400 and 1300 BCE. Furthermore, the exact, relative felling dates allow first insights into the minimum duration of the settlement phases, which lie between 17 and 87 years. The multi-centennial chronologies presented in this study represent a first robust dating basis for future research in the numerous not yet dated prehistoric lake shore settlements in the southwestern Balkans with excellently preserved wooden remains

Shedding of Mycobacterium caprae by wild red deer (Cervus elaphus) in the Bavarian alpine regions, Germany

The number of natural infections with Mycobacterium caprae in wildlife and in cattle in the Bavarian and Austrian alpine regions has increased over the last decade. Red deer (Cervus elaphus) have been recognized as maintenance reservoir; however, the transmission routes of M. caprae among and from naturally infected red deer are unknown. The unexpected high prevalence in some hot spot regions might suggest an effective indirect transmission of infection. Therefore, this study was undertaken to diagnose the occurrence of M. caprae in faeces and secretions of red deer in their natural habitat. A total of 2,806 red deer hunted in this region during 2014–2016 were included in this study. After pathological examination, organs (lymph nodes, lung, heart), excretions and secretions (faeces, urine, saliva and tonsil swabs) were further investigated by qPCR specific for Mycobacterium tuberculosis complex (MTC), M. bovis and M. caprae. Samples tested positive by qPCR were processed for culturing of mycobacteria. In total, 55 (2.0%) animals were confirmed positive for M. caprae by pathological examination, PCR and culturing of the affected organ material. With the exception of one sample, all of the secretion and excretion samples were negative for mycobacteria of the Mycobacterium tuberculosis complex (MTC). From one red deer, M. caprae could be isolated from the heart sac as well as from the faeces. Whole‐genome sequencing confirmed that both strains were clonally related. This is the first confirmation that M. caprae can be shed with the faeces of a naturally infected red deer. However, further studies focusing on a higher number of infected animals, sample standardization and coordinated multiple sampling are necessary to improve the understanding of transmission routes under natural conditions