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PurposeIn the transformation to the circular economy, circular logistics nodes are becoming increasingly important to, for example, match supply and demand, coordinate flows, increase logistics efficiency and customer utility, and reduce environmental impact. The purpose of this study is to expand our theoretical understanding of the circular retail transformation and its implications for circular
In this thesis we consider different tests for unit roots in the presence of structural change. We present the theory that lies behind unit roots, what we mean by structural change and try to detect the instances that “breaks” occur in the data. When performing a unit root test, when there is a structural change the results are biased toward accepting a unit root. Therefore, special care must be t
In an era of globalization, international legal frameworks and vigorous international politics, we cannot refrain from hearing about the extensive health crisis of the developing world. HIV/AIDS, Malaria and drug resistant tuberculosis are only a few of the widespread disease which appear almost surreal to the citizens of the industrial world. The debates and discussions regarding the importance o
The semiconductor industry is one of the most technologically advanced and complex industries in the world, not only because of the extreme development pace, but also because of the necessary production processes to create the finished product. The value increase from silicon as raw material, to integrated circuits (IC), is equivalent to the transformation of sand into a product worth more than it
Vessel-source pollution is regarded as one of the major sources that harm marine environment. It has become an issue of public concern since 20th century due to a series of oil pollution incidents on the sea. Fortunately, international law has been developed to control this source of pollution taking consideration of the importance of protection and preservation of marine environment and sustainab
LevMacinstrumentet är ett analysinstrument under utveckling som utnyttjar leviterade droppar på 100 nl ? 2 ?l. Genom att använda leviterade droppar med den omgivande atmosfären som enda kontaktyta, undviker LevMac?en de vanligaste problemen associerade med miniatyrisering av analytiska tekniker, t.ex. kontaminering av provet genom desorption från provbehållaren eller andra gränsytor, adsorption av
Naturvetenskap, teknik, ingenjörsvetenskap och matematik, på engelska ofta grupperade under akronymen STEM, är traditionellt mansdominerade områden. Särskilt inom ingenjörsvetenskap och teknologi är kvinnor fortfarande kraftigt underrepresenterade. Bristen på kvinnor inom STEM innebär utmaningar i att möta arbetsmarknadens behov, för produktkvalitet på grund av brist på olika perspektiv i designprScience, technology, engineering and mathematics, often grouped under the acronym STEM, are traditionally male dominated fields. Especially in engineering and technology, women continue to be heavily underrepresented. The lack of women in STEM poses challenges for meeting the labor market demands, for product quality due to a lack of diverse perspectives in the design process, and for gender equal
How we teach is strongly influenced by the culture we teach in, especially what (we believe) our colleagues think is good and acceptable. Understanding the reluctance to changes in teaching practice, including fear of disapproval from colleagues and students, investigating and reappraising those fears, and starting to talk about alternative interpretations is a first step towards overcoming the in
Precise knowledge of the temperature during cutting processes is of high interest as the temperature of a cutting tool dictates the performance, and for the workpiece it controls the quality and integrity of the generated surface. For the first time, in this study, a novel technique has been developed utilizing phosphor thermometry for 2D surface temperature measurement of a cutting tool in metal
BACKGROUND: Low back pain (LBP) is a leading cause of work absence globally. Digital interventions have the potential to increase access to self-management support for individuals with persistent LBP.OBJECTIVE: This study aims to evaluate the feasibility, usability, and acceptability of a digital educational program (MyRelief) designed to support self-management strategies for people with persiste
Introduction: Most cervical cancer cases in Sweden are diagnosed among women who have failed to attend screening. The objective of this study was to analyze the effectiveness of offering vaginal HPV (human papillomavirus) self-samples to long-term non-attendees as a routine in this screening program, in which non-attendees had already been the targets of several interventions. Material and Methods
BACKGROUNDDistinguishing wide complex tachycardia (WCT) as ventricular tachycardia (VT) or supraventricular WCT (SWCT) is critical yet challenging. Manual ECG algorithms require substantial expertise and are inconsistently applied, and contemporary computerized ECG interpretation (CEI) systems often return only a generic “wide complex tachycardia” label. Novel machine learning–based ECG models (So
Background. National registries that capture patients with chronic kidney disease (CKD) across all stages are scarce. We present here the Swedish Renal Registry (SRR), a nationwide prospective register covering the whole spectrum of CKD. Methods. Created in 1991, SRR enrolls CKD patients referred to adult nephrologist care (non-dialysis CKD [ND-CKD], kidney transplantation, maintenance dialysis),
The recognition of amine groups by ninhydrin, along with a simple mathematical algorithm, showed that di- and tripeptides derived from dietary protein are the major end products of protein digestion entering the blood postprandially. There are thousands of oligopeptides appearing in the gut during protein digestion. However, the presented study on a pig model clearly shows that peptides longer tha
