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Highly enantioselective epoxidation of olefins by H 2 O 2 catalyzed by a non-heme Fe(ii) catalyst of a chiral tetradentate ligand

The chiral tetradentate N4-donor ligand, 1-methyl-2-({(S)-2-[(S)-1-(1-methylbenzimidazol-2-yl methyl)pyrrolidin-2-yl]pyrrolidin-1-yl}methyl) benzimidazole (S,S- PDBz L), based on a chiral dipyrrolidine backbone, has been synthesized and its corresponding Fe(ii) complex has been prepared and characterized. The X-ray structure of the complex reveals that the Fe(ii) ion is in a distorted octahedral

Virtual Reality Evacuation Experiments on Way-Finding Systems for the Future Circular Collider

Evacuation times can be shortened in fire scenarios if people choose appropriate routes. Way-finding systems can be used to aid this process, thus their effectiveness needs to be evaluated. In the present study, the way-finding evacuation systems of the Future Circular Collider (FCC) of the European Organization for Nuclear Research (CERN) are investigated as its evacuation design presents several

Burnout among school teachers : quantitative and qualitative results from a follow-up study in southern Sweden

BACKGROUND: Teachers are at high risk of stress-related disorders. This longitudinal study aimed to (a) identify which occupational, sociodemographic and life-style factors and self-efficacy at baseline that were of importance for burnout, (b) explore associations between changes in the studied factors versus changes in burnout, and (c) by interviews increase the understanding of perceived job dem

Development of 7-Item Perceived Meaning of Activity in Housing (PMA-H-7) to Assess Opportunities for Meaningful Activities in the Supported Housing Context for People With Psychiatric Disabilities

People with psychiatric disabilities need to be able to express their views about their support, for example, the provision of meaningful activity in supported accommodation. Brief scales may be necessary to avoid strain and discomfort for this group. The aim was to develop a brief version of Perceived Meaning in Activity—Housing (PMA-H) and investigate its factor structure, internal consistency,

Teachers interacting with students : an important (and potentially overlooked) domain for academic development during times of impact

This article is situated in the context of an intensified discourse within which academic developers are being asked to provide evidence of impact, and argues that theoretical models currently used are imprecise and fail to capture the variation in outcomes from professional development activities. Through reference to previous research on how teachers' thinking can be described in relation to var

Radiographic research in Sweden – A review of dissertations

Introduction: Radiographers have performed research since 1988 in Sweden. The amount of doctoral and licentiate dissertations written by registered diagnostic radiographers has increased considerably since 2000. How this new field of research was established and developed has facilitated understand of the boundaries that strengthen the professional evidence base. The aim of this dissertation revie

Visualizing the coordination-spheres of photoexcited transition metal complexes with ultrafast hard X-rays

The concept of coordination sphere (CS) is central to the rational development of hierarchical molecular assemblies in modern chemistry. Manipulating the organization around transition metal ions with covalent and supramolecular interactions is a general strategy that underlies most synthetic protocols. Achieving similar control for photoexcited molecular complexes is necessary to advance the des

Using the random forest algorithm to integrate hydroacoustic data with satellite images to improve the mapping of shallow nearshore benthic features in a marine protected area in Jamaica

Hydroacoustic and optical remote sensing have been commonly used to map shallow nearshore benthic features. However, the number, type, scale, and accuracy of the mapping products that can be obtained from the two sensors differ; as such, there can be limited agreement between their mapping products. These differences can be further accentuated if the hydroacoustic data are interpolated to produce

Factors influencing the outcome of renovation projects

Bostäder står för ca 23% av all energianvändning i Sverige. Om målet netto-nollkoldioxidutsläpp 2045 ska nås är det därför troligt att energibesparande åtgärderför bostäder kommer behövas. Många av de befintliga byggnaderna är runt 50 åreller äldre och är således i behov av modernisering. Samtidigt ökarurbaniseringstakten, därför finns det och kommer även framöver finnas behov avfler bostäder. EneIn Sweden, housing accounts for about 23% of all energy consumption. Sweden wants to reach net zero carbon emissions by 2045; as such, it is likely that energy-saving measures for housing will be needed. Many existing buildings have been in operation for 50 years or more and are therefore in need of modernisation. At the same time, the population is increasing and so is the rate of urbanisation, w

Revealing change dynamics in hospital construction projects

Purpose: Hospital construction projects often suffer from relatively late changes in the project lifecycle, which disrupt the project execution and impact project productivity. The purpose of this paper is to explore the root causes of changes in hospital construction projects. The paper aims to propose ways to prepare for the changes. Design/methodology/approach: The study focuses on changes duri

Statistical model fitting and model selection in pedestrian dynamics research

Pedestrian dynamics is concerned with understanding the movement patterns that arise in places where more than one person walks. Relating theoretical models to data is a crucial goal of research in this field. Statistical model fitting and model selection are a suitable approach to this problem and here we review the concepts and literature related to this methodology in the context of pedestrian

Tools and methods for solar design - an overview of IEA SHC Task 41, Subtask B

This paper provides an overview of Subtask B: Tools and methods for solar design, of IEA SHC Task 41: Solar energy and architecture, 2009-2012. The focus of this Subtask was on identifying obstacles that architects are facing when implementing passive and active solar strategies in their design, especially during the early design phase (EDP) of building projects. The results of this Subtask also a

Människan och etiken : Välgrundad moral i en polariserad tid

Människans reflektioner över etiska frågeställningar befinner sig i spänningen mellan att formulera vad som är allmänmänskligt och vad som kan betraktas som särskiljande för olika individer och grupper av människor. Hur ska vi leva tillsammans? Och vad är ett gott samhälle? Det som ska vara gemensamt och gränserna för olikhet måste (åter)erövras i varje tid. Och i varje tid samsas ”eviga” etiska s

Daylighting metrics based on illuminance, distribution, glare and directivity

A method is presented for assessing daylighting quality based on metrics related to illuminance, distribution, glare and directivity. The calculations are done using the programs RADIANCE and DAYSIM for a south-west and a north-west oriented offices in the CDP building in Montreal (latitude 45° 30'N). The results indicate that the following set of metrics is the most useful for assessing the dayli