Sökresultat

We show that an unsupervised artificial neural network can be trained to parameterize the set of N representable density matrices well enough to enable ground state energy calculations. A one-dimensional harmonic oscillator system is used to test the method. 4, 5, or 6 fermions are placed in an external potential. They interact with one of three different interaction types. By choosing the most su

This report consists of three main parts. The first part explores how the density of traffic on a road can be mathematically modeled as a partial differential equation: a relation between a function and its derivatives. The second part describes an algorithm which can find a numerical solution for the differential equation. This algorithm is used in the third part of the report where simulations a

More and more structural analyses today are being conducted with computer-based tools in comparison to traditional methods using hand calculations. The development, according to the Norweigan scientist Kolbein Bell is shifting from using first order analyses with correction factors, to using second order analyses, with computer-based tools. This dissertation mainly compares analyses of glulam colu

It is questionable how project management can aid an organization’s pursuit of achieving a sustained competitive advantage through innovation. Especially within the technology industry, organizations are facing increasing competition in today’s dynamic environment and are obligated to act in order to fulfill customers’ eagerness for innovative products. This research study is targeted at merging t

Cross-country data links good health status to an increase in wealth status (income levels) as evidenced by existing prevalence of rates of child morbidity and mortality in poorer settings. Essentially, Primary Health Care amongst other affordable health interventions is prioritized in most countries now. This thesis focuses on Ghana, to establish whether there exists an association between wealth

Describing many-body quantum systems has been an analytically and computationally challenging task since the advent of quantum mechanics. However, in the past 50 years as a result of our technological advancement and the emergence of methods such as density-functional theory (DFT), we have taken crucial steps forward regarding our ability to study and understand large quantum systems. In this work

This paper studies the relationship between contraceptive adoption by women and three relevant predictors: women’s education, empowerment and religious affiliation. I employ recent information on women’s characteristics and the institutional environment for six Latin American countries, in the years 2013-2015, to perform a cross-section analysis with binary and multinomial logistic regressions, ha

This research looks into the gender equality work of two IT companies in Sweden, examines what actions the companies pursue in their gender equality work, the level of management involvement and how that affects the outcome. In the IT industry, organizations are failing with retaining their female employees (Correll & Mackenzie, 2016). Further, stereotypes result in, e.g. the IT industry is se

Developing countries have undergone a process of rapid urbanization since the 1950s. However, some of them did not follow the “natural” path of urbanization, implying that additional factors also played an important role in the process of urbanization. This thesis examines common drivers of the urbanization process across countries in Asia, Latin America and Sub-Saharan Africa. Thereby, it analyse

Abstract: Over the last decades, remittances have significantly gained in importance for developing countries. Using recent household data, this thesis assesses the impact of remittances on agricultural productivity for the case of Ghana. Accounting for sample selection bias and endogeneity concerns, an overall positive but modest impact of remittances emerges. Yet, this estimate discerns crucial

Currently, more than one billion people in the world is exposed to flooding and approximately 10 percent of them suffer its consequences every year. With the onset of climate change, the frequency of these events is likely to increase, and especially in Asia and Africa, where many of the global poor are located. One of the reasons why this is likely to present a challenge for poverty reduction is

Med bakgrund till den allt mer medicinska synen på mental (o)hälsa som tidigare forskning deklarerar för, är syftet med denna uppsats att sociologiskt undersöka hur ensamkommande unga vuxna män upplever bemötandet av den psykiatriska vården i Sverige. För att göra detta möjligt måste orsakerna för den mentala (o)hälsan hos de ensamkommande unga vuxna männen först utredas och analyseras. De frågest

Using the data from the United Nations Development Programme survey (2004), the thesis explores whether the incidence of chronic diseases is associated with residential segregation. Possible differences are measured for Roma communities relative to the majority population living in urban residences inhabited by minority, mixed and majority groups. The sample consists of 17,669 observations from 7

Sammanfattning: Titel: Vem vill gå en romantisk promenad i ett industriområde? En kvalitativ studie om logistikens betydelse som en tjänst för olika aktörer i ett citylogistikprojekt Nivå: Kandidatuppsats i Logistics Service Management, VT 2018 Universitet: Lunds Universitet, Campus Helsingborg, Institutionen för Service Management Syfte och frågeställning: Syftet med vår studie är att belys

This dissertation endeavours to examine long-lasting sequels of malaria on economic development in sub-Saharan Africa. Despite the general consensus that countries where malaria is endemic are not only poorer but also grow economically at a slower pace than non-malarial ones, the channels through which malaria incidence translates into lower subsequent development are still under-examined. The aim

Hur ser framtidens jordbruk ut? Hur ska utmaningar som klimatförändringar och försämrade jordbruksmarker kunna hanteras samtidigt som tillräckliga mängder mat produceras för att föda den ständigt växande mänskliga befolkningen? Genom pyrolys, det vill säga upphettning av biomassa utan tillgång till syre, skapas biokol, ett stabilt material med hög porositet och mycket hög kolhalt. Biokol kan plöjaBiochar is a recalcitrant carbon rich solid product widely praised for the ability to improve soil fertility and sequester carbon, thereby improving crop yields and mitigating climate change. In addition to this, gaseous by products from production can be combusted for energy. Despite the recent global peaks in biochar research, studies focused on temperate regions are relatively scarce and few Eu

Wind energy has not been able to diffuse widely in the Netherlands, despite the great history of harnessing wind power. To understand the factors responsible for the slow diffusion of wind energy in the Netherlands, a qualitative study has been performed through semi-structured interviews. Drawing on insights from regime influences, this study has applied the multi-level framework by Geels (2012)

Vi demonstrerar i denna artikel en generell tre-stegs-lösning för att förbättra vägnamnsdata i olika länder genom att fylla i saknade namn, rättstava felstavade namn och flagga anomalier.OpenStreetMap is an open source of geographical data where contributors can change, add, or remove data. Since anyone can contribute, the data set is prone to contain data of varying quality. In this work, we focus on three approaches for correcting Way component name tags in the data set: Correcting misspellings, flagging anomalies, and generating suggestions for missing names. Today, spell correc

While index insurance has received increased attention as an instrument for adaptation to climate change, evidence supporting its effectiveness remains limited. This thesis explores the potential of normalized difference vegetation index (NDVI) based livestock index insurance in Northern Kenya to help small-scale farmers to manage climate change risks in the event of livestock-reducing drought. Th