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Scalar conservation laws with discontinuous flux function: I. The viscous profile condition.
The equation , whereH is Heaviside's step function, appears for example in continuous sedimentation of solid particles in a liquid, in two-phase flow, in traffic-flow analysis and in ion etching. The discontinuity of the flux function atx=0 causes a discontinuity of a solution, which is not uniquely determined by the initial data. The equation can be written as a triangular 2×2 non-strictly hyperb
Glucosylated cholesterol in mammalian cells and tissues: formation and degradation by multiple cellular β-glucosidases.
The membrane lipid glucosylceramide (GlcCer) is continuously formed and degraded. Cells express two GlcCer-degrading β-glucosidases, GBA and GBA2, located in and outside the lysosome, respectively. Here we demonstrate that through transglucosylation both GBA and GBA2 are able to catalyze in vitro the transfer of glucosyl-moieties from GlcCer to cholesterol, and vice versa. Furthermore, the natural
Plasma concentrations of growth arrest specific protein 6 and the soluble form of its tyrosine kinase receptor Axl as markers of large abdominal aortic aneurysms.
OBJECTIVE: The tyrosine kinase receptor Axl is expressed in the vasculature and Gas6 is the ligand. The extracellular part of Axl (sAxl) can be found in circulation. The aim of this study was to determine plasma concentrations of Gas6 and sAxl in patients with abdominal aortic aneurysms (AAA) and to evaluate if Gas6 and sAxl can be used as biomarkers. DESIGN AND METHODS: Immunoassays for sAxl and
A case-controlled evaluation of the Medtronic Resting Heart System compared with conventional cardiopulmonary bypass in patients undergoing isolated coronary artery bypass surgery.
The Medtronic Resting Heart System (RHS) is a heparin-coated, closed perfusion circuit. Clinical results indicate less haemodilution and reduced complement activation, when compared with a traditional circuit leading to fewer postoperative blood transfusions. We evaluated the potential clinical benefits, including reduced transfusion requirements, when using the RHS compared with conventional card
A major change in the phytoplankton composition in a Swedish sill fjord—a consequence of engineering work?
A major phytoplankton change occurred during the late 1930s and early 1940s in Koljö Fjord, a sill fjord on the Swedish west coast. Dinoflagellate cyst concentrations increased tenfold over a short period of time, from hundreds of cysts per gram sediment to thousands; and the species composition of both dinoflagellate cysts and diatoms changed markedly. These changes took place during a period of
Broad overview of the history of Swedish occupational health research.
Explaining the welfare state: power resources vs. the Quality of Government
Abstract in UndeterminedThe hitherto most successful theory explaining why similar industrialized market economies have developed such varying systems for social protection is the Power Resource Theory (PRT), according to which the generosity of the welfare state is a function of working class mobilization. In this paper, we argue that there is an under-theorized link in the micro-foundations for
Nurse assistants' experience of an intervention focused on a palliative care approach for older people in residential care.
Background: Nurse assistants working in residential care facilities need support to ensure that they provide high-quality care for the residents and support for relatives, from admission to bereavement. Aim. The aim was to describe the nurse assistants' experience of how an intervention with a palliative care approach, had influenced them in their work in residential care for older people. Parti
THE CONTINUING ROLE OF PROSTATE-SPECIFIC ANTIGEN AS A MARKER FOR LOCALIZED PROSTATE CANCER: 'DO NOT THROW THE BABY OUT WITH THE BATH WATER'
Role of endovascular intervention in patients with diabetic foot ulcer and concomitant peripheral arterial disease.
AIM: The aim of this study was to evaluate wound healing, major amputation and mortality in patients with diabetic foot ulcer and peripheral arterial disease (PAD), and to compare the group decided to have an endovascular intervention with groups referred to conservative treatment or to those judged as unreconstructable. METHODS: A retrospective two-year review of all patients with diabetic foot
“Use” discourses in system development: Can communication be improved?
This paper aims to provide a basis for renewed talk about “use” in computing. Four current “discourse arenas” are described. Different intentions manifest in each arena are linked to failures in ”translation,” different terminologies crossing disciplinary and national boundaries non-reflexively. Analysis of transnational use discourse dynamics shows much miscommunication. Conflicts like that betwe
Projecting streamflow in the Tangwang River basin (China) using a rainfall generator and two hydrological models
To estimate the impacts of future climate change on streamflow in the Tangwang River basin (TRB) in northeastern China, 2 hydrological models, the Soil and Water Assessment Tool and the Hydro-Informatic Modeling System, were used. These models are driven by future (2021-2050) local rainfall and temperature scenarios downscaled from global climate model (GCM) simulations from the fifth phase of the
Comparing the educational environment (as measured by DREEM) at two different stages of curriculum reform.
BACKGROUND: The medical programme at Lund University, Sweden, has undergone curricular reform over several stages, which is still ongoing. Students have been somewhat negative in their evaluations of the education during this time. AIM: To find out how the students perceived the educational climate using the Dundee Ready Education Environment Measure (DREEM), and to compare the findings taken at t
Spasm in free arterial grafts - reply
Världshistorien, enligt Kim Jong II
Primary Pseudomyogenic Hemangioendothelioma of Bone.
Pseudomyogenic hemangioendothelioma (PMH) is a well-recognized neoplasm that usually arises in the soft tissue; concurrent bone involvement occurs in 24% of cases. PMH of bone without soft tissue involvement is rare. We describe the clinicopathologic findings of 10 such cases, the largest series reported to date. The study included 9 male and 1 female patient; their ages ranged from 12 to 74 years
The Trafficking with tanwir ( Enlightenment)
Phosphorylation site-specific inhibition of platelet-derived growth factor beta-receptor autophosphorylation by the receptor blocking tyrphostin AG1296
The mechanism of action of AG1296, a potent and specific inhibitor of the platelet-derived growth factor (PDGF) receptor tyrosine kinase [Kovalenko, M., Gazit, A., Bohmer, A., Rorsman, Ch., Ronnstrand, L., Heldin, C.-H., Waltenberger, J., Bohmer, F. D., & Levitzki, A. (1994) Cancer Res. 54, 6106-6114] was investigated. This quinoxalin-type tyrphostin neither interferes with PDGF-BB binding to
A consultation-based method is equal to SCORE and an extensive laboratory-based method in predicting risk of future cardiovascular disease.
BACKGROUND: As cardiovascular disease (CVD) is one of the most common causes of mortality worldwide, much interest has been focused on reliable methods to predict cardiovascular risk. DESIGN: A cross-sectional, population-based screening study with 17-year follow-up in Southern Sweden. METHODS: We compared a non-laboratory, consultation-based risk assessment method comprising age, sex, present smo