Sökresultat

Filtyp

Din sökning på "*" gav 540174 sökträffar

Operation of the ATLAS Transition Radiation Tracker under very high irradiation at the CERN LHC

The ATLAS Transition Radiation Tracker (TRT) performance depends critically on the choice of the active gas and on its properties. The most important operational aspects, which have led to the final choice of the active gas for the operation of the TRT at the LHC design luminosity, are presented. The TRT performance expected at these conditions is reviewed, including pile-up effects at high lumino

Macroeconomic variables and corporate performance

Increased economic and financial integration and substantial macroeconomic fluctuations require that corporate managers and investment analysts pay more attention than in the past to the link between the "noise" that these fluctuations represent and the company's performance-past and future. For many reasons, company managers must weed out the effects of the noise to obtain a clear picture of the

Acupuncture and transcutaneous nerve stimulation in stroke rehabilitation: a randomized, controlled trial

BACKGROUND AND PURPOSE: In small trials with control groups that receive no intervention, acupuncture has been reported to improve functional outcome after stroke. We studied effects of acupuncture and transcutaneous electrical nerve stimulation on functional outcome and quality of life after stroke versus a control group that received subliminal electrostimulation. METHODS: In a multicenter rando

Excited States in the Transitional N=45 Nucleus 85Zr

Excited states in the transitional nucleus Zr-85 were studied via the fusion evaporation reaction Fe-56((35)C1,alpha pn)Zr-85 at 120 MeV. A level scheme reaching up to probable spins of (33/2(+)) at 6.2 MeV and (27/2(-)) at 4.9 MeV was established and compared to neighbouring nuclei.

Space wars and the new urban imperialism

Popular AbstractAvhandlingen analyserar sentida urbana förändringar ur perspektivet kampen om rummet, här kallat 'space wars'. Fokus är på investeringsflöden inom den kommersiella fastighetsmarknaden, förändringar inom urbanpolitik, förändring inom stadens socialgeografi, och relationer mellan dessa tre aspekter. Empiriskt bygger avhandlingen på studier av data rörande utländska investeringar, arkThe dissertation analyzes recent urban transformations through the lens of space wars. The main focus is on investment flows in the commercial property market, changes in urban governance and changes in social geography, and how these three aspects are related. Drawing on cross border investment data, archive studies, interviews with key actors and street walking experiences in Copenhagen, Lisbon

Åtgärdsprogram för bevarande av öländsk tegellav (Psora vallesiaca).

Action plan for the conservation of Psora vallesiaca Psora vallesiaca is red-listed in Sweden and assigned to the category Critically Endangered (CR). In Sweden it is known from one locality on Öland where it grows in a small population of about 30 individuals. In the spring of 2006, four new localities were discovered on Gotland. The main distribution of Psora vallesiaca streches from the Mediter

Epidemiologic Associations of Carpal Tunnel Syndrome and Sleep Position: Is There a Case for Causation?

Abstract Introduction Carpal tunnel syndrome (CTS) is thought to be due to compression of the median nerve in the carpal tunnel. It is known that carpal tunnel pressures are elevated in wrist postures of flexion and extension and in those patients with CTS. Classic symptoms of CTS include night waking with pain, tingling, and numbness. These classic symptoms stimulated our interest in the relation

Equality of Access in Health Care

Popular Abstract in Swedish Rättvisekriterier och andra etiska aspekter spelar en stor roll i svensk sjukvård. De ingår t ex i målformuleringen i hälso- och sjukvårdslagen ("Målet för hälso- och sjukvården är en god hälsa och en vård på lika villkor för hela befolkningen.", §2). Läkare och andra beslutsfattare påpekar regelbundet vikten av moraliska värderingar, och befolkningen i gemen torde delaEquality of access may be defined and operationalised in several ways. Paper I, 'Equality of access. Definitions and policy implications', proposes a theoretical outline of possible definitions of equal access, of the policy measures needed to attain equality and of their consequences. The health economic literature proposes two main definitions of equal access. Equal access prevails either when i

Histological type of lung carcinoma in asbestos cement workers and matched controls

Histological types of lung carcinoma were examined in a case series of workers exposed to asbestos cement dust (n = 29) and matched controls (n = 87). The proportion of adenocarcinomas was 31% among the exposed subjects and 15% among the controls (mid-p = 0.05). Among workers with high exposure the proportion of adenocarcinoma was even higher (45%, 5/11; mid-p = 0.03). The proportion of peripheral

Friction Generated Limit Cycles

This paper treats limit cycles caused by friction. The goal has been to explain phenomena that have been observed experimentally in mechatronic systems. Experiments have shown that oscillations of qualitatively different types can be obtained simply by changing controller specifications. Stiction is important in some cases but not in others. Necessary conditions for limit cycle are given for the c

Industrial applications of the IWA anaerobic digestion model No. 1 (ADM1)

In this paper, the IWA anaerobic digestion model No. 1 (ADM1) is applied to two case studies from contract work on industrial treatment plants. The first was the assessment of acid addition for pH decrease and avoidance of calcium carbonate (CaCO3) precipitation in a paper mill fed UASB. The simulation work found, with a high degree of confidence, that acid dosing was neither economical for pH con

Immunodeficiency mutation databases (IDbases).

Primary immunodeficiencies (IDs) are a heterogenic group of inherited disorders of the immune system. Immunodeficiency patients have increased susceptibility to recurrent and persistent, even life-threatening infections. Mutations in a large number of genes can cause defects in different cellular functions and lead to impaired immune response. To date, approximately 150 IDs and more than 100 affec

High frequency QRS electrocardiogram analysis during exercise stress testing for detecting ischemia

Introduction ECG stress testing is an inexpensive and non-invasive detector of myocardial ischemia; addition of high-frequency QRS analysis (HFQRS) may improve accuracy. This study compared HFQRS during exercise in patients with and without ischemia as defined by multiple criteria. Material and methods High-resolution ECGs were recorded for 139 patients undergoing T99-sestamibi/T201-thallium stre

Precision of measurements of physical workload during standardized manual handling part III: Goniometry of the wrists.

Goniometry of the wrist is a feasible method for studying wrist movements in most hand-intensive work. The precision and accuracy of the method per se is good. For the knowledge on validity of field measurements, the size of imprecision is of importance. This study evaluated this condition during standardized circumstances. Six women performed three different hand-intensive work tasks: 'materials

Cartilage and bone markers and inflammatory cytokines are increased in synovial fluid in the acute phase of knee injury (hemarthrosis) - a cross-sectional analysis.

PURPOSE: To in a cross-sectional study population investigate concentrations of cartilage and bone markers, and pro-inflammatory cytokines in synovial fluid (SF) collected at different time-points from acutely injured knees with hemarthrosis and to compare these with SF concentrations of knees of age and gender-matched healthy reference subjects. METHODS: SF was aspirated from the acutely inju