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A quantum description of the Stern-Gerlach experiment

A detailed analysis of the classic Stern-Gerlach experiment is presented. An analytical simple solution is presented for the quantum description of the translational and spin dynamics of a silver atom in a magnetic field with a gradient along a single z-direction. This description is then used to obtain an approximate quantum description of the more realistic case with a magnetic field gradient al

Saving Super-Earths : Interplay between Pebble Accretion and Type i Migration

Overcoming type I migration and preventing low-mass planets from spiralling into the central star is a long-studied topic. It is well known that outward migration is possible in viscously heated disks relatively close to the central star because the entropy gradient can be sufficiently steep for the positive corotation torque to overcome the negative Lindblad torque. Yet efficiently trapping plane

Ger målrelaterad ersättning till vårdcentraler en lämpligare förskrivning av antibiotika?

Antibiotikaresistenta bakterier är en allvarlig och växande utmaning för hälso och sjukvården i hela världen. I denna artikel studerar vi om målrelaterad ersättning (MRE) kan påverka förskrivningen så att läkare i första hand väljer antibiotika som i lägre grad bidrar till resistensutvecklingen. Åtta svenska landsting införde under 2009–12 MRE för vårdcentraler, i syfte att förändra förskrivningen

Repeated Structural Imaging Reveals Nonlinear Progression of Experience-Dependent Volume Changes in Human Motor Cortex

Evidence for experience-dependent structural brain change in adult humans is accumulating. However, its time course is not well understood, as intervention studies typically consist of only 2 imaging sessions (before vs. after training).We acquired up to 18 structural magnetic resonance images over a 7-week period while 15 right-handed participants practiced left-hand writing and drawing. After 4

RAVE stars in K2 : I. Improving RAVE red giants spectroscopy using asteroseismology from K2 Campaign 1

We present a set of 87 RAVE stars with detected solar like oscillations, observed during Campaign 1 of the K2 mission (RAVE K2-C1 sample). This data set provides a useful benchmark for testing the gravities provided in RAVE data release 4 (DR4), and is key for the calibration of the RAVE data release 5 (DR5). The RAVE survey collected medium-resolution spectra (R = 7500) centred in the Ca II tripl

Electron impact excitation for He-like ions with Z = 20-42

Aims. Spectral lines of He-like ions are among the most prominent features in X-ray spectra from a large variety of astrophysical and high-temperature fusion plasmas. A reliable plasma modeling and interpretation of the spectra require a large amount of accurate atomic data related to various physical processes. In this paper, we focus on the electron-impact excitation (EIE) process. Methods. We a

The archaeology of teaching and the evolution of homo docens

Teaching is present in all human societies, while within other species it is very limited. Something happened during the evolution of Homo sapiens that also made us Homo docens-the teaching animal. Based on discussions of animal and hominin learning, we analyze the evolution of intentional teaching by a series of levels that require increasing capacities of mind reading and communication on the pa

The effect of voice quality and competing speakers in a passage comprehension task : perceived effort in relation to cognitive functioning and performance in children with normal hearing

The study investigates the effect of voice quality and competing speakers on perceived effort in a passage comprehension task in relation to cognitive functioning. In addition, it explores if perceived effort was related to performance. A total of 49 children (aged 7:03 to 12:02 years) with normal hearing participated. The children performed an auditory passage comprehension task presented with si

Tau pathology distribution in Alzheimer's disease corresponds differentially to cognition-relevant functional brain networks

Neuropathological studies have shown that the typical neurofibrillary pathology of hyperphosphorylated tau protein in Alzheimer's disease (AD) preferentially affects specific brain regions whereas others remain relatively spared. It has been suggested that the distinct regional distribution profile of tau pathology in AD may be a consequence of the intrinsic network structure of the human brain. T

Methods to study lipid alterations in neutrophils and the subsequent formation of neutrophil extracellular traps

Lipid analysis performed by high performance thin layer chromatography (HPTLC) is a relatively simple, cost-effective method of analyzing a broad range of lipids. The function of lipids (e.g., in host-pathogen interactions or host entry) has been reported to play a crucial role in cellular processes. Here, we show a method to determine lipid composition, with a focus on the cholesterol level of pr

Note from the field : Applying a ‘human rights cognitive style’ in the Raoul Wallenberg Institute’s work on human rights education with universities

This note draws on both the Raoul Wallenberg Institute’s (RWI) international cooperation programmes with universities to advance human rights education and the concepts of a ‘human rights cognitive style’ and ‘local cognitive style’ as developed by Benjamin Gregg in his recent theory of The Human Rights State (2016). We analyse how to facilitate positive attitudinal change towards human rights acr

Differing rates of antibody acquisition to merozoite antigens in malaria : Implications for immunity and surveillance

Antibodies play a key role in acquired human immunity to Plasmodium falciparum (Pf) malaria and target merozoites to reduce or prevent blood-stage replication and the development of disease. Merozoites present a complex array of antigens to the immune system, and currently, there is only a partial understanding of the targets of protective antibodies and how responses to different antigens are acq

G protein-coupled Estrogen Receptor 1 (GPER1)/GPR30 Increases ERK1/2 Activity Through PDZ-dependent and -independent Mechanisms

G protein-coupled receptor 30 (GPR30), also called G protein-coupled estrogen receptor 1 (GPER1), is thought to play important roles in breast cancer and cardiometabolic regulation, but many questions remain about ligand activation, effector coupling, and subcellular localization. We showed recently that GPR30 interacts through the C-terminal type I PDZ motif with SAP97 and protein kinase A (PKA)-

Situating Macromarketing Research in an Interconnected World : the Quest for Relationality

Given its emphasis on understanding marketing systems through their reciprocal interactions with society, the task of developing a methodology that captures such complexity is particularly crucial for macromarketing. The aim of the present contribution is to elaborate a methodological approach that is able to operationalize macromarketing complexity into more comprehensive and analyzable forms, wh

Intuitive Instruction of Industrial Robots : A Knowledge-Based Approach

With more advanced manufacturing technologies, small and medium sized enterprises can compete with low-wage labor by providing customized and high quality products. For small production series, robotic systems can provide a cost-effective solution. However, for robots to be able to perform on par with human workers in manufacturing industries, they must become flexible and autonomous in their taskWith more advanced manufacturing technologies, small and medium sized enterprises can compete with low-wage labor by providing customized and high quality products. For small production series, robotic systems can provide a cost-effective solution. However, for robots to be able to perform on par with human workers in manufacturing industries, they must become flexible and autonomous in their task