The agile methodology is gaining attention among practitioners and researchers in hardware development. As a new methodology, it is a source of misunderstandings and misinterpretations. This is problematic at the managers' levels as they may hinder its adoption or lead to its impractical implementation and use. This study, therefore, aims to explore the manager's level of understanding of the agil

Perovskite solar cells have rapidly been developed over the past several years. Choice of the most suitable solar cell structure is crucial to improve the performance further. Here, we attempt to determine an optimum cell structure for methylammonium lead iodide (MAPbI3) perovskite sandwiched by "2 and spiro-OMeTAD layers, among planar heterojunction, mesoporous structure, and extremely thin absor

Insertion of interfacial molecules in bulk heterojunction and dye sensitized solar cells is effective to retard charge recombination reactions and thus to improve solar cell performance. So far, to extend charge separated state lifetime, the molecule was designed to increase distance between an n-type and a p-type semiconductors to reduce their electronic coupling. Here we investigated a series of

Performance of nanoporous TiO2 based lead iodide perovskite solar cells was investigated under a series of light intensity up to 1.2 sun. The short circuit photocurrent increases linearly with the intensity increase, while the fill factor slightly decreases with the intensity increase. The analysis of logarithmic light intensity dependence of the open circuit voltage revealed a slope of 1.09 kT/q,

PbS quantum dots (QDs) are some of the most attractive QDs used to develop novel optoelectronic devices such as solar cells, photodetectors and biological labels. However, identifying an appropriate method to access high quality QDs with a wide size range employing lower cost, less toxic and safer precursors is not trivial. Here, we demonstrate the diffusion controlled synthesis of size-tunable Pb

Photo-excitation intensity dependent electron and hole injections from CH3NH3PbI3 perovskite to nanocrystalline TiO2 and spiro-OMeTAD are presented with the electron injection yield decrease from 95% to 10% and the hole injection yield decrease from 99% to 50% by increasing the excitation intensity from 10 nJ cm-2 to 50 μJ cm-2.

Artikeln föreslår att återinföra ordet "Förföräldrar" som ett samlingsord för far- och morföräldrar.

In this chapter, we analyze Finnish and Swedish economic history research on these countries’ common past (prior to 1809) and the early modern era (defined here as between 1500 and 1850). Using extensive bibliometric databases, we show that even when they focus on the early modern era, economic historians most often analyze Finland and Sweden in terms of their modern borders. Researchers based in

Komplex produktutveckling med långa projekttider kräver framgångsrik överföring av kunskap inom och mellan projekt. Avdelningen för integrerat logistikstöd (ILS) vid Saab Kockums Malmö har identifierat ett behov av att överskåda de nuvarande arbetssätten. Syftet med detta examensarbete är att undersöka de olika typerna av kunskap som är viktiga för arbetet på ILS-avdelningen, undersöka avdelningenComplex product development with long project times requires successful transfers of knowledge within and between projects. The department of integrated logistics support (ILS) at Saab Kockums Malmö has identified a need to oversee the current working methods. The purpose of this master thesis is to examine the different types of knowledge important to the work at the ILS department and explore th

The method of solving boundary value problems of partial differential equations numerically by first reformulating the problem as a boundary integral equation has many advantages over other methods, but also some unique difficulties. Some of these difficulties stem from problems in evaluating singular or nearly singular integral operators, and solving these difficulties is an active field of resea

This thesis aims to find a design suggestion for the chassis of a new micromobility vehicle developed by the company LEVTEK SWEDEN AB by using a multiple load, compliance based topology optimization. For this purpose, 9 static load cases are suggested, 4 of which have been derived from dynamic scenarios using an equivalent static load inspired approach based on free-body diagrams. The results from

Helminth/tuberculosis (TB)-coinfection can reduce cell-mediated immunity against Mycobacterium tuberculosis (Mtb) and increase disease severity, although the effects are highly helminth species dependent. Mtb have long been ranked as the number one single infectious agent claiming the most lives. The only licensed vaccine for TB (BCG) offers highly variable protection against TB, and almost no pro

This interpretive focused-ethnographic study was conducted to illuminate and gain deeper understanding on managers’ everyday cooperative work practices using artefacts. In the dissertation, artefacts refer to digital technologies and information. The doctoral research specifically examines how artefacts in the workplace of an academic library are used in academic library managers’ everyday coopera

Objective: Two predominant phenotypic models of causality exist to explain the high co-occurrence of posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD): the self-medication and susceptibility models. Population-based longitudinal studies that simultaneously examine both models are needed. Thus, the goal of the pres-ent study is to test these models using the Swedish National Regis

Background The authors sought to clarify the impact of spousal psychiatric disorders of differing severity [major depression or anxiety disorders (DAD) v. bipolar disorder or nonaffective psychosis (BPN)] on proband risk for alcohol use disorder (AUD) during marriage. Methods In a Swedish cohort (N = 744 628), associations between spousal DAD and BPN and proband AUD were estimated with Cox proport

Background & aims: Despite advances in the management of short bowel syndrome related intestinal failure (SBS-IF), large-scale contemporary pediatric studies are scarce. The aim of this multicenter study was to assess key outcomes and clinical prognostic factors in a recent Nordic pediatric SBS-IF population. Methods: Patients with SBS-IF treated during 2010–2019, whose parenteral support (PS)

The use of municipally owned corporations (MOCs) has a long tradition in Sweden. In this chapter we take the point of departure in this long tradition of MOCs when describing how the use of these corporations has developed over time as well as the conditions under which these MOCs operate has developed. In addition, some of the more problematic features of MOCs, that Swedish local governments stru

Currently studies aiming for the comprehensive metabolomics profiling of measured total fat (%) as well as fat distribution in both sexes are lacking. In this work, bioimpedance analysis was applied to measure total fat (%) and fat distribution (trunk to leg ratio). Liquid chromatography-mass spectrometry-based untargeted metabolomics was employed to profile the metabolic signatures of total fat (

Since the spread of the COVID-19 pandemic, migrants’ mobility has been increasingly securitised as governments have been adopting extraordinary measures to close both external and internal borders. Similarly, the presence of migrants within countries has often been met with lower levels of acceptance, leading to the implementation of discriminatory and xenophobic measures. Although debates on the