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The effect of nanosecond pulsed electric field on the production of metabolites from lactic acid bacteria in fermented watermelon juice

Lactic acid fermentation offers a processing alternative for preservation of watermelon juice, which is sensitive to heat, oxygen, and light. In this study, 8.8 × 107 CFU/mL of Lactobacillus plantarum DSM 9843 in MRS broth was inoculated in 9.9 mL of sterilized watermelon juice. Nanosecond-pulsed electric field was applied during the log growth phase of the bacteria. An 19% increase in L-lactic ac

Species-specific reservoir effect estimates : A case study of archaeological marine samples from the Bering Strait

Due to the marine reservoir effect, radiocarbon dates of marine samples require a correction. Marine reservoir effects, however, may vary amongdifferent marine species within a given body of water. Factors such as diet, feeding depth and migratory behaviour all affect the 14C date of a marineorganism. Moreover, there is often significant variation within single marine species. Whilst the careful c

Probabilistic risk analysis and building performance simulations : Building design optimisation and quantifying stakeholder consequences

A method for risk analysis and building performance simulations is developed to optimise the building design process and fulfil the design criteria. The aim is to support the decision-makers during the building design process by including uncertainties from the design phase, quantifying the probability of attaining the energy performance criteria and financial requirements. The method is meant to

Experimental investigation on the thermo-hydraulic characteristics and occurrence boundary of geyser in a cryogenic pipe

In the present study the thermo-hydraulic characteristics of geyser in the cryogenic fuel transportation pipe of a liquid rocket is experimentally investigated using liquid nitrogen. The typical thermo-hydraulic appearances are characterized and analyzed in the geyser process to effectively recognize the occurrence of geyser in practical engineering. The effect of interfering factors such as heat

Technology as Human Social Tradition : 15 Trait-Based Datasets of Hunter-Gatherer Material Culture (Northwest Siberia, Pacific Northwest Coast, Northern California)

Data paper. How are particular material culture traditions passed from one generation to the next? This digital archive supports "Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers" (Jordan 2015) published by University of California Press. The archive consists of 15 Excel files which were used to conduct in-depth analysis of the factors driving diversity and change

Habitus and climate change: Exploring support and resistance to sustainable welfare and social–ecological transformations in Sweden

We explore peoples' dispositions and practices with regard to social–ecological transformations based on a sustainable welfare policy strategy in Sweden. We draw on Bourdieu's concept of habitus to highlight the relations between social positions, dispositions, and position-takings. Using data from an own survey, we identify habitus types and place these in the space of social positions. We apply

Walnuts, salmon and sika deer : Exploring the evolution and diversification of Jōmon “culinary” traditions in prehistoric Hokkaidō

The goal of this contribution is to stimulate a wider reflection on the role of food consumption practices throughout prehistory. We focussed on the Jōmon communities of Hokkaidō Island in Northern Japan since these mobile foragers underwent a process of economic diversification and intensification, eventually leading to higher levels of sedentism across the Pleistocene-Holocene transition. Moreov

Structural basis of ABCF-mediated resistance to pleuromutilin, lincosamide, and streptogramin A antibiotics in Gram-positive pathogens

Target protection proteins confer resistance to the host organism by directly binding to the antibiotic target. One class of such proteins are the antibiotic resistance (ARE) ATP-binding cassette (ABC) proteins of the F-subtype (ARE-ABCFs), which are widely distributed throughout Gram-positive bacteria and bind the ribosome to alleviate translational inhibition from antibiotics that target the lar

Family history of early onset acute lymphoblastic leukemia is suggesting genetic associations

Childhood acute lymphoblastic leukemia (ALL) has an origin in the fetal period which may distinguish it from ALL diagnosed later in life. We wanted to test whether familial risks differ in ALL diagnosed in the very early childhood from ALL diagnosed later. The Swedish nation-wide family-cancer data were used until year 2016 to calculate standardized incidence ratios (SIRs) for familial risks in AL

Correcting for Systematic Underestimation of Topographic Glacier Aerodynamic Roughness Values From Hintereisferner, Austria

Spatially-distributed values of glacier aerodynamic roughness (z0) are vital for robust estimates of turbulent energy fluxes and ice and snow melt. Microtopographic data allow rapid estimates of z0 over discrete plot-scale areas, but are sensitive to data scale and resolution. Here, we use an extensive multi-scale dataset from Hintereisferner, Austria, to develop a correction factor to derive z0 v

Wood modification as a tool to understand moisture in wood

Moisture plays a central role in the performance of wood products because it affects important material properties such as the resistance to decomposition, the mechanical properties, and the dimensions. To improve wood performance, a wide range of wood modification techniques that alter the wood chemistry in various ways have been described in the literature. Typically, these modifications aim to

European Resuscitation Council and European Society of Intensive Care Medicine guidelines 2021 : post-resuscitation care

The European Resuscitation Council (ERC) and the European Society of Intensive Care Medicine (ESICM) have collaborated to produce these post-resuscitation care guidelines for adults, which are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. The topics covered include the post-cardiac arrest syndrome, diagnosis of cause of cardiac a

Genomic epidemiology reveals multiple introductions of SARS-CoV-2 from mainland Europe into Scotland

Coronavirus disease 2019 (COVID-19) was first diagnosed in Scotland on 1 March 2020. During the first month of the outbreak, 2,641 cases of COVID-19 led to 1,832 hospital admissions, 207 intensive care admissions and 126 deaths. We aimed to identify the source and number of introductions of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into Scotland using a combined phylogenetic and

Storytelling for Sustainability

If we want to imagine a more sustainable future, we need to be emotionally connected with that vision. Providing the latest facts and figures alone won’t do the trick. We suggest storytelling can be a great way to convey these facts in a compelling way to envision and connect with a possible future. Stories are an effective narrative device, because they activate areas of the brain responsible for

Methods for performance characterization of artificial molecular motors

The overall aim of this thesis work is to characterize artificial biomolecular motors, specifically the Lawnmower, a motor based on the burn bridges mechanism, and the Tumbleweed, a protein motor that employs ligand specific DNA-proteins binding to step along DNA. An overview of their operational principles is given, and initial results of our studies are presented, along with a review of currentl