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Knowledge-carrying objects in learning situations

ABSTRACTThis study aims to explore the scope of ‘knowledge-carrying’ objects in learning situations. The study is based on a qualitative content analysis of a design project conducted in a science centre for children aged 7-10 years, learning about polymers and circularity. The design project is based on research through design and has been an iterative process where design experiments and observaThis study aims to explore the scope of ‘knowledge-carrying’ objects in learning situations. The studyis based on a qualitative content analysis of a design project conducted in a science centre for childrenaged 7-10 years, learning about polymers and circularity. The design project is based on researchthrough design and has been an iterative process where design experiments and observations werei

AAV Production Everywhere : A Simple, Fast, and Reliable Protocol for In-house AAV Vector Production Based on Chloroform Extraction

Recombinant adeno-associated virus (rAAV) is a mammalian virus that has been altered to be used as a gene delivery vehicle. Several changes to the viral genome have made them replication deficient so that this aspect of the viral infection cycle is under full control of the experimenter, while maintaining gene expression machinery. Over the last decades, rAAVs have become the gold standard for stu

Within-Family Transmission of Alcohol Use Disorder in Parent-Offspring, Sibling, and Cousin Pairs : A Contagion Model

To determine whether alcohol use disorder (AUD) is transmitted within families as predicted by contagion, we examined parent-offspring, siblings, and cousin pairs ascertained from Swedish registries with a primary case with AUD. Our outcome variable was AUD registration in at-risk secondary cases. In offspring, risks for AUD registration in the 3 years after a parental index registration residing

Subleading EW corrections and spin-correlation effects in tt¯ W multi-lepton signatures

Recently a slight tension between data and predictions has been reported in tt¯ W production by both the CMS and ATLAS collaborations. We revisit the theoretical predictions for this process, focussing on the following two effects. We disentangle various effects that lead to asymmetries among the leptonic decay products of the (anti-)top quarks and W bosons, for which we find that the spin correla

ARID1a Associates with Lymphoid-Restricted Transcription Factors and Has an Essential Role in T Cell Development

Maturation of lymphoid cells is controlled by the action of stage and lineage-restricted transcription factors working in concert with the general transcription and chromatin remodeling machinery to regulate gene expression. To better understand this functional interplay, we used Biotin Identification in human embryonic kidney cells to identify proximity interaction partners for GATA3, TCF7 (TCF1)

Agreement between nonculprit stenosis follow-up iFR and FFR after STEMI (iSTEMI substudy)

OBJECTIVE: To evaluate agreement between instantaneous wave free ratio (iFR) and fractional flow reserve (FFR) for the functional assessment of nonculprit coronary stenoses at staged follow-up after ST-segment elevation myocardial infarction (STEMI). RESULTS: We measured iFR and FFR at staged follow-up in 112 STEMI patients with 146 nonculprit stenoses. Median interval between STEMI and follow-up

"Herre, visa mig din väg" : Så fann Heliga Birgittas bön vägen till dagens pilgrimsrörelse

En bön som kallas Heliga Birgittas har blivit populär bland pilgrimer: "Herre, visa mig din väg och gör mig villig att vandra den". Den är inspirerad av Birgittas uppenbarelser, men är inte ett ordagrant citat. Den är hämtad ur en längre bön av kyrkoherden Sam Stadener, ihopredigerad av Birgittacitat som Emilia Fogelklou tillhandahållit. Denna bön publicerades i Den svenska psalmbokens bönbok 1921

Understanding the improvement in full childhood vaccination coverage in ethiopia using oaxaca–blinder decomposition analysis

In Ethiopia, full vaccination coverage among children aged 12–23 months has improved in recent decades. This study aimed to investigate drivers of the improvement in the vaccination coverage. The Oaxaca–Blinder decomposition technique was applied to identify the drivers using data from Ethiopian Demographic and Health Survey conducted in 2000 and 2016. The vaccination coverage rose from 14.3% in 2

Old overnight : Experiences of age-based recommendations in response to the COVID-19 pandemic in Sweden

The Swedish response to the COVID-19 pandemic included age-based recommendations of voluntary quarantine specifically for those 70 years of age or older. This paper investigates the experiences of a sudden change of policy in the form of an age restriction that trumped the contemporary active aging ideal. A web-based qualitative survey was conducted in April 2020. Through manual coding of a total

Ultrasound-based risk model for preoperative prediction of lymph-node metastases in women with endometrial cancer : model-development study

Objective: To develop a preoperative risk model, using endometrial biopsy results and clinical and ultrasound variables, to predict the individual risk of lymph-node metastases in women with endometrial cancer. Methods: A mixed-effects logistic regression model for prediction of lymph-node metastases was developed in 1501 prospectively included women with endometrial cancer undergoing transvaginal

Glycemic index, glycemic load, and risk of coronary heart disease : a pan-European cohort study

BACKGROUND: High carbohydrate intake raises blood triglycerides, glucose, and insulin; reduces HDLs; and may increase risk of coronary heart disease (CHD). Epidemiological studies indicate that high dietary glycemic index (GI) and glycemic load (GL) are associated with increased CHD risk. OBJECTIVES: The aim of this study was to determine whether dietary GI, GL, and available carbohydrates are ass

Measurements of microwave scattering by ultrasound in air at oblique incidence

Scattering of electromagnetic waves against acoustic waves has been studied in acousto-optics and radio acoustic sounding of the atmosphere, among others. Strong interaction requires phase matching, which occurs at two angles between waves. These depend on the wavelength ratio. The scattered electromagnetic wave is frequency shifted by the acoustic frequency, either up or down depending on the ang

How should we do colon capsule endoscopy reading : a practical guide

In this article, we aim to provide general principles as well as personal views for colonic capsule endoscopy. To allow an in-depth understanding of the recommendations, we also present basic technological characteristics and specifications, with emphasis on the current as well as the previous version of colonic capsule endoscopy and relevant software. To date, there is no scientific proof to supp

An algorithm for identifying least manipulable envy-free and budget-balanced allocations in economies with indivisibilities

We analyze the problem of allocating indivisible objects and monetary compensations to a set of agents. In particular, we consider envy-free and budget-balanced rules that are least manipulable with respect to agents counting or with respect to utility gains. A key observation is that, for any profile of quasi-linear preferences, the outcome of any such least manipulable envy-free rule can be obta

Combustion chemistry of methoxymethanol. Part II : Laminar flames of methanol+formaldehyde fuel mixtures

In the present study, the laminar burning velocities of mixtures of up to 16.4% (mol) formaldehyde in methanol, burning with air, were determined at atmospheric pressure using the heat flux method covering lean, stoichiometric and rich flames at initial gas mixture temperatures of 298, 318 and 338 K. Results published in the literature indicate that evaporation of CH2O+CH3OH fuel blends should lea

Semantic Synthesis of Pedestrian Locomotion

We present a model for generating 3d articulated pedestrian locomotion in urban scenarios, with synthesis capabilities informed by the 3d scene semantics and geometry. We reformulate pedestrian trajectory forecasting as a structured reinforcement learning (RL) problem. This allows us to naturally combine prior knowledge on collision avoidance, 3d human motion capture and the motion of pedestrians