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In the following years we will experience a transition towards Internet Protocol version 6 (IPv6). The reason is the depletion of IPv4 address space due to the rapid increasing numbers of Internet of Things (IoT) devices connection. This transition however poses a problem, since the majority of these devices mostly are mobile and not connected to power source. Neighbor Discovery Protocol (NDP) def
Bland de mest kraftfulla händelser som människor har observerat är gammablixtar. Blixtarna är korta utbrott av gammastråalning som ibland dyker upp i rymden. Forskare har länge misstänkt att kollisioner mellan neutronstjärnor ligger bakom en kategori av blixtar, de korta gammablixtarna. För några år sedan bekräftades forskarnas misstankar. De kunde då, med det nya LIGO-observatoriet, observera graShort gamma-ray bursts are often observed at large spatial offsets from their host galaxies. Neutron star mergers in double neutron star binaries have also recently been confirmed as a progenitor of short gamma-ray bursts (Abbott et al. 2017). We attempt to constrain uncertainties in the evolution of burst-producing neutron star binaries by generating a distribution of burst offsets from the neutr
The aim of the study was to investigate what measures principals take in order to raise the amount of students who finish secondary school with a leaving certificate. Furthermore, it was intended to investigate why these methods have been successful. The selection of respondents consisted of principals at four different schools in southern Sweden. Data was collected through four semi-structured in
To recover from armed conflicts, state authorities need to take on measures that will permit statebuilding to happen. Usually, the first type of measures put into place is the adoption of programmes called Disarmament, Demobilization and Reintegration (DDR). Because they target individuals who are deemed potential threats to the success of the peace process, namely combatants, DDR programmes are s
The thermal effects related to wearing headgear are complex and different studies have investigated single parts of this topic. This review aims at summarizing the different findings to give a complete overview on this topic as well as to suggest new perspectives. Headgear increases head insulation and therefore is mainly problematic under warm conditions, which is the focus of this review. Helmet
Abstract in Undetermined How intense do people expect their future emotional reactions to be? This should depend on the fit between the social perspective (near vs. distant) involved in the emotion and the emotion-eliciting event’s temporal distance. Temporal distance and social distance are interrelated (Trope & Liberman, 2010). We therefore argue that people should anticipate experiencing em
Introduction. Palliative cancer care in acute hospitals is scarcely studied. We therefore described and compared symptoms, care needs and types of cancer sites in 2002 compared to 2007 and analysed the relationships between these factors. Methods. The study was population-based with a cross-sectional design and was carried out in medical, surgical and oncology wards in two acute care hospitals wit
Since the 1990s, vigorous debate concerning a number of key issues has taken place within the study of Chinese nationalism. Scholars have tended to differentiate between diverse types of nationalism. For example, many studies distinguish between a malign nationalism on the one hand and a benign patriotism on the other. The strongest evidence for such a distinction can be found in survey research,
Context: The dipeptidyl peptidase-4 inhibitor, vildagliptin, inhibits glucagon secretion at hyperglycemia but appears to enhance glucagon counterregulation during hypoglycemia in type 2 diabetes.Objective:The objective of the investigation was to study whether vildagliptin also improves α-cell function in type 1 diabetes (T1D). Patients and Methods: The study was a single-center, double-blind, ra
How much is democracy dependent upon supportive economic and social conditions? This question, which has occupied political scientists and sociologists for almost half a century, has attracted special attention in the last ten years as more and more countries have engaged in efforts to democratise. This volume is the first collection to take stock of current literature and put it into context. Thi
Popular Abstract in Swedish Avhandlingen studerar tillväxtfaktorernas reglering av uPA-systemet i endometriet, och betydelsen av uPA-receptorns (uPAR) aktivering i den endometriella angiogenesen. Tillväxtfaktorer är polypeptider, vilka fungerar som signalmolekyler i cellernas kommunikation. Tillväxtfaktorerna frisätts från sina ursprungsceller och binder sig till specifika receptorer på ytan av ceThe purpose of this thesis was to examine the role of growth factors and the urokinase plasminogen activator (uPA) system in human endometrial angiogenesis. Growth factors as well as progesterone increased expression of the main inhibitor of uPA (PAI-1) in primary cultures of endometrial stromal cells. EGF, TGF-beta1 and bFGF increased gene transcription whereas progesterone increased mRNA stabili
Popular Abstract in Swedish Populärvetenskaplig sammanfattning Hyaluronan (hyaluronsyra) är en högmolekylär polysackarid som förekommer i all biologisk vävnad i olika koncentrationer, med särskilt höga nivåer i bindväv. Den kan bildas av de flesta celltyper. På molekylär nivå föreligger den i form av ett nystan, har förmågan att binda stora mängder vatten, och har en uttalad pseudoplasticitet. HyaHyaluronan has been found in the eye in varying amounts and at different sites. It is involved in physiological and pathological processes, though many aspects of its bio-logi-cal functions are still unclear. We have studied the role of iris tissue in hyal-uro-nan production in the anterior segment of the eye, and its changes after trauma. After peripheral iridectomy or argon laser treatment, the
Sexual selection may take place before or after mating and may involve a large number of different mechanisms, for example, overt male aggression, mate choice, sperm competition and cryptic female choice. In most species, males show similar reproductive tactics and, hence, achieve their reproductive success in the same or a similar way. Sometimes, however, males evolve alternative reproductive tac
In patches of co-occurring species in natural plant communities, there is a finely poised balance between species in the ways in which they respond to prevailing moisture and temperature regimes. However, environmental change scenarios, in which temperature, moisture and ultraviolet-B radiation are suggested to increase, may favour one of the species. The imbalance is likely to occur at the levels
Purpose: To assess and correlate the levels of inflammatory mediators in the eyes from non-diabetic and diabetic subjects without retinopathy (NDR), with non-proliferative diabetic retinopathy (NPDR) or with proliferative diabetic retinopathy (PDR) to corresponding erum levels. Methods: The levels of interleukin 1β, interleukin-6 (IL-6) and tumour necrosis factor-α (TNF-α) were analysed by an EL
Objective: To examine the possible relationships of breast cancer risk to prediagnostic plasma levels of insulin; insulin-like growth factor-I (IGF-I); and IGF-binding proteins -1, -2, and -3. Methods: Within two prospective cohorts in Umea and Malmo we measured plasma concentrations of insulin, IGF-I, and IGFBPs for a total of 513 incident breast cancer cases and 987 matched controls. Results: Gl
Background We investigated whether prediagnostic reported intake of dairy products and dietary calcium are associated with colorectal cancer (CRC) survival. Methods Data from 3,859 subjects with CRC (42.1% male, mean age at diagnosis 64.2 ± 8.1 years) in the European Investigation into Cancer and Nutrition (EPIC) cohort were analyzed. Intake of dairy products and dietary calcium was assessed at ba
