Gender

My chapter gives an overview of gender and religion in Europe in the “long” 19th century based on developments in historical research since the 1980s. The focus is on Catholicism and Protestantism with some reflexions also on Judaism and Orthodox Christianity

Influence of final state interactions in attosecond photoelectron interferometry

Fano resonances are ubiquitous phenomena appearing in many fields of physics, e.g., atomic or molecular photoionization, or electron transport in quantum dots. Recently, attosecond interferometric techniques have been used to measure the amplitude and phase of photoelectron wave packets close to Fano resonances in argon and helium, allowing for the retrieval of the temporal dynamics of the photoionization process. In this work, we study the photoionization of argon atoms close to the 3s13p64p autoionizing state using an interferometric technique with high spectral resolution. The phase shows a monotonic 2 pi variation across the resonance or a nonmonotonic less than pi variation depending on experimental conditions, e.g., the probe laser bandwidth. Using three different, state-of-the-art calculations, we show that the measured phase is influenced by the interaction between final states reached by two-photon transitions

On The Least Absolute Deviations Method for Ridge Estimation of Sure Models

In this paper we examine the application of the least absolute deviations (LAD) method for ridge-type parameter estimation of seemingly unrelated regression equations (SURE) models. The methodology is aimed to deal with the SURE models with non Gaussian error terms and highly collinear predictors in each equation. Some biasing parameters used in the literature are taken and the efficiency of both least squares ridge estimation and the LAD ridge estimation of the SURE models, through the mean squared error of parameter estimators, is evaluated.</p

The Use of Polyurethane Foam (PUF) Passive Air Samplers in Exposure Studies to PAHs in Swedish Seafarers [Elektronisk resurs]

The aim of this study was to test the usefulness of polyurethane foam (PUF) passive air samplers as stationary, and, for the first time, as personal samplers for one week’s sampling period of polycyclic aromatic hydrocarbons (PAHs) in occupational air. Routine monitoring of workplace exposure is commonly performed with active sampling. However, active samplers can sometimes be unsuitable; e.g., it is difficult to make time-integrated measurements, longer than one day, and they can be noisy and obstructive. Indoor air quality on ships is an important aspect of the environment which has not been studied extensively on ships. For seafarers, good indoor air quality becomes particularly important as the ship represents both a working and living environment. In this study, measurements were carried out on two occasions on two different ships, at different workplaces, and for various personnel categories. On each ship, measurements were performed before and after a change of the type of fuel that the ships were operating on. We found a considerable wide range of PAHs exposure levels for the various workplaces and personnel categories on the ships. The stationary measurements, sum 32 PAHs, ranged from 33-39,000 ng m−3 and the personal exposure measurements ranged from 61-8,400 ng m−3. The results point to that the content of PAHs in the fuel can affect the indoor air environment on the entire ship. Further, the results demonstrate that the PUF sampler can serve as a simple and usable screening tool for estimating and tracking point sources of PAHs in micro-environments. Moreover, this study contributes to increased knowledge of exposure to and sources of PAHs for seafarers

The Camp not Taken : Analysis of Preferences and Barriers Among Frequent, Occasional and Noncampers

Camping is a recreational activity that links people with their physical surroundings and the environment. Hence, efforts in promoting camping activities may help promote sustainable and accessible recreation and tourism. This research focuses on preferences and barriers for camping in Israel as perceived by frequent, occasional, and noncampers. The findings of an online study with 665 respondents show that focusing only on current campers may create self-selection bias and overlook the barriers that prevent people from camping. While noncampers shared some barriers with campers, they also experienced more barriers regarding information gaps (location of campsites) and camping equipment. All participants had a similar preference for solitude and lack of crowding. These findings create a dilemma for camping managers and marketing campaigns: to reduce the barriers that prevent low frequency campers and noncampers from camping or to keep the situation as is and minimize overcrowding in campsites

Interfacial transition zone between young shotcrete and hard rock

Shotcrete (sprayed concrete) differs from ordinary cast concrete through the application technique and the addition of set accelerators that promote immediate stiffening. The bond strength development between shotcrete and rock is an important property that depends on the texture of the rock, the type of accelerator, and application technique. This investigation focuses on the development of the microstructure in the interfacial transition zone (ITZ) and the strength of the bond at the shotcrete-hard rock boundary. The results show that the bond strength is related to the hydration process—that is, the strength gain of the shotcrete—and remains low before the acceleration period of the cement hydration. With a scanning electron microscope (SEM), it is possible to observe changes over time for the early development of the interfacial zone, both before and after proper cement hydration. Results from tests with wet-sprayed concrete on granite rock are presented. The test method—using both bond strength and the SEM to investigate the development of the microstructure at the ITZ—is interesting, but has to be more broadly examined. Different mixtures, accelerators, and rock types have to be used.</p

Sharp A1 Weighted Estimates for Vector-Valued Operators

Given 1 ≤ q< p< ∞, quantitative weighted Lp estimates, in terms of Aq weights, for vector-valued maximal functions, Calderón–Zygmund operators, commutators, and maximal rough singular integrals are obtained. The results for singular operators will rely upon suitable convex body domination results, which in the case of commutators will be provided in this work, obtaining as a byproduct a new proof for the scalar case as well

Assessment of an Evolution Equation for the Displacement Speed of a Constant-Density Reactive Scalar Field [Elektronisk resurs]

The displacement speed that characterises the self-propagation of isosurfaces of a reaction progress variable is of key importance for turbulent premixed reacting flow. The evolution equation for the displacement speed was derived in a recent work of Yu and Lipatnikov (Phys Rev E 100:013107, 2019a) for the case where the flame is described by a transport equation for single reaction progress variable assuming simple transport and one-step chemistry. This equation represents interaction of a number of complex coupled mechanisms related to straining by the velocity field, surface curvature and the scalar gradient. The aim of the current work is to provide detailed physical explanations of the displacement speed equation and its various terms, and to provide a new perspective to understand the mechanisms responsible for observed variations in the displacement speed. The equation is then used to analyze the propagation of a statistically planar reaction wave in homogeneous isotropic constant-density turbulence using direct numerical simulations. Additional emphasis is put on retracting surface segments that have a negative displacement speed, a phenomenon that commonly occurs at high Karlovitz numbers

Template-driven Best Practice Documentation [Elektronisk resurs]

Knowledge Management has become a key instrument for identifying, creating and sharing organizational knowledge assets. An attractive means for sharing knowledge is Best Practices (BPs), which are proven as well as efficient and effective solutions to recurring problems. BPs can offer significant benefits, including improved performance, reduced re-work and cost savings. However, the implementation of BPs raises several challenges, one of which is that the low quality of BP documentation can impede the use of BPs. One way to address this challenge is by supporting designers in structuring BP documents so that they become complete, uniform and easy-to-use. This support can take the form of a BP Document Template that prescribes the structure of BP documents by defining relevant attributes for describing BPs. This paper proposes a comprehensive and practical BP Document Template for supporting the creation, use and evaluation of BP documents. The design of this template is an example of design science research including requirements elicitation, artifact development, demonstration, and evaluation. The development is based on a combination of expert interviews and a literature study using Grounded Theory, while the demonstration applies the proposed template in three real-life cases, and the evaluation is based on expert interviews. The proposed BP Document Template consolidates, integrates and extends previous work on BP documentation. It thereby offers an effective tool for BP designers, managers, and users that can support them in the design, evaluation and application of BPs.</p