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We establish new analytic results for a general class of rational spectral problems. They arise e.g. in modelling photonic crystals whose capability to control the flow of light depends on specific features of the eigenvalues. Our results comprise a complete spectral analysis including variational principles and two-sided bounds for all eigenvalues, as well as numerical implementations. They apply
In this study, we use an extension of the heterogeneous autoregressive model to investigate the influence of time-varying risk aversion and macroeconomic, financial, and economic policy uncertainty measures on stock market volatility and correlation. Based on the findings, there is a stronger predictive ability of these variables at the monthly frequency than at the daily frequency. We also highli
This special issue collects articles, which aim to re-envision integration, dislodging the previously monodirectional conceptual flow sourced in the Global North. Jointly, the articles pursue a critical scholarship contributing to multicentric knowledge production, disrupting binaries of integrated/nonintegrated, inclusion/exclusion, citizen/non-citizen, or indeed self/other. They evidence ambival
BACKGROUND: The shortage of trained surgeons, anesthesiologists, and obstetricians is a major contributor to the unmet need for surgical care in low- and middle-income countries, and the shortage is aggravated by migration to higher-income countries.METHODS: We performed a cross-sectional observational study, combining individual-level data of 43,621 physicians from the Health Professions Council
Background. Over five billion people worldwide lack access to safe and affordable surgery and anesthesia care when required. There is a critical unmet need for surgical care, especially in low-income and middle-income countries (LMICs). The shortage of surgical providers is one of the most influential barriers to receiving surgical care, and the maldistribution is aggravated by doctors emigrating
The vast majority of students at universities in Sweden are members of student unions. Universities strongly encourage students to enter unions as they give access to discounts, social events, clubs, and internships. Student unions are tasked with representing students towards the university. In addition, union membership in Sweden is rarely believed to have a political connotation. While often be
Fiber-reinforced polymers are highly demanding composites in aerospace and automotive areas because of their excellent mechanical properties such as stiffness and strength-to-weight ratio. The drilling remains the major machining operation applied to composites to provide high-quality holes for joints between parts. Due to composites plied structure, the drilling is accompanied with unusual form m
Background: Most children with Wilms tumour are successfully treated with multidrug chemotherapy and surgery. These treatments cause severe side effects for the patients, an issue that needs to be addressed by exploring other treatment options with less or no side effects. One option is to complement current therapies with agents that could potentially induce tumour cell differentiation, for examp
The advent and popularity of shared electric scooters in many urban areas worldwide offer new opportunities and challenges to be addressed by the research community, especially as far as safety and accessibility issues are concerned. This paper proposes a methodology, based on geofencing technology (i.e., virtual geographic boundaries) to define in which urban areas the speed of shared electric sc
BackgroundRecently, it has been suggested that gender disparity in Occupational Therapy has to do with segregated gendered job norms that position female dominated professions as a ‘step down’ for many males. Interestingly, this suggestion was not underpinned by experiences of males in the profession.Aims and MethodsThirteen male Occupational Therapists with a variety of backgrounds were invited t
The complex reactions of blood coagulation are balanced by several natural anticoagulants resulting in tuned hemostasis. During several decades, the knowledge base of the natural anticoagulants has greatly increased and we have also learned about antiinflammatory and cytoprotective activities expressed by antithrombin and activated protein C (APC). Some coagulation proteins have also been found to
Carefully selecting the right collection datastructure can significantly improve the performance of a Java program. Unfortunately, the performance impact of a certain collection selection can be hard to estimate.To assist developers there are tools that recommend collections to use based on static and/or dynamic information about a program. The majority of existing collection selection tools for J
Background/Aims Self-rated health before, during and after pregnancy is important for women s quality of life and promotes bonding between mother and child. However, diverse aspects of care models influence women s experiences during pregnancy. This study aimed to investigate low?risk women s self-rated health during the perinatal period in relation to different models of care in Sweden. Methods A
In her own time, Anne Brontë the writer was regarded as inferior to the two older “Bells”, largely because of the perceived slightness of her first novel and the alleged coarseness and brutality of her second. For the next hundred years, it was accepted that she was a pale second-rater in relation to her sisters. That image has now been discarded; but the notion that Anne Brontë was not quite her
Business angels are a vital source of capital for innovative start-up firms. However, many potentially attractive investment opportunities are rejected during the angel's decision-making process. Information asymmetry, risk and distrust in the relationship between the investor and the entrepreneur result in investment barriers. The concept of proximity has been proposed as a conceptual foundation
Background: In microscopic colitis (MC), the incidence has increased over the last decades. The aim of the present study was to determine the incidence of lymphocytic (LC) and collagenous colitis (CC) in the county Skåne (Scania), southern Sweden, during the period 2010–20 with focus both on the temporal and spatial variations. Methods: The MC diagnosis was retrieved from the biopsy registries at
Technology is increasingly being integrated into Age-Friendly Environments (AFEs). This study explores how technology is manifested in AFE policies in China. We conducted a content analysis of 176 policies spanning seven years to identify the relationship between technology and AFEs, and the characteristics of policy development. The findings indicate that technology plays a role in advancing a sm
This art short film examines clichéd images of vulnerable urban places in Sweden by juxtaposing stereotypes of marginalization, safety, commerce, and everyday life. The research aim is to use kitsch art and playful elements to intervene in the conventional thinking of these places as problems in the margins of society.The medium of the short film enables us to bring to life the empirical material
BACKGROUND: Children with suspected ureteropelvic junction obstruction (UPJO) may present with a paradoxical ipsilateral supranormal differential renal function (snDRF) on 99mTechnetium mercaptoacetyltriglycine scintigraphy (MAG3 scan). OBJECTIVE: The aim was to investigate the prevalence of snDRF, the risk of pyeloplasty among children with UPJO and snDRF, and to explore the experience of snDRF a
