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Time transformation and reversibility of Nambu–Poisson systems
A time transformation technique for Nambu–Poisson systems is developed, and its structural properties are examined. The approach is based on extension of the phase space P into P¯ = P×R, where the additional variable controls the time-stretching rate. It is shown that time transformation of a system on P can be realised as an extended system on P¯, with an extended Nambu–Poisson structure. In addi
Elevated glucose levels promote contractile and cytoskeletal gene expression in vascular smooth muscle via Rho/protein kinase C and actin polymerization.
Both type 1 and type 2 diabetes are associated with increased risk of cardiovascular disease. This is in part attributed to the effects of hyperglycemia on vascular endothelial and smooth muscle cells but the underlying mechanisms are not fully understood. In diabetic animal models, hyperglycemia results in hyper-contractility of vascular smooth muscle possibly due to increased activation of Rho-k
Surgical treatment of depression fractures of the lateral tibial plateau using porous titanium granules.
The clinical and radiological results were excellent in this pilot study of four cases of depression fracture of the lateral tibial plateau, where, in addition to internal fixation with screws or a buttress plate, porous titanium granules were used to support the elevated articular surface.
Pancreatic cancer: Translational research aspects and clinical implications.
Despite improvements in surgical techniques and adjuvant chemotherapy, the overall mortality rates in pancreatic cancer have generally remained relatively unchanged and the 5-year survival rate is actually below 2%. This paper will address the importance of achieving an early diagnosis and identifying markers for prognosis and response to therapy such as genes, proteins, microRNAs or epigenetic mo
Using business intelligence to prevent and solve crime in Wallander land
Actor network theory (ANT) and sociomateriality are two influential information systems(IS) entanglement perspectives. El Sawy identified three faces of IS views: connection,immersion, and fusion. To elaborate the three views, we adopt relational emergence theory, based on the philosophy of critical realism, to better describe and explain the shifts in IS from connection to immersion and finally t
Putting co-workers in the limelight: New challenges for communication professionals
The status of co-workers has increased due to the expansion of post-bureaucratic and knowledge-intensive organizations. In organization studies the importance of co-workers has for a rather long time been acknowledged. Remarkably has co-workers more or less been neglected in research as well as in practice within the field of strategic communication. In research the overall focus is mainly on the
Cerebellar Synaptic Plasticity and the Credit Assignment Problem.
The mechanism by which a learnt synaptic weight change can contribute to learning or adaptation of brain function is a type of credit assignment problem, which is a key issue for many parts of the brain. In the cerebellum, detailed knowledge not only of the local circuitry connectivity but also of the topography of different sources of afferent/external information makes this problem particularly
Adaptation and vision change the relationship between muscle activity of the lower limbs and body movement during human balance perturbations.
OBJECTIVE: Investigate the relationship between changes in lower limb EMG root mean square (RMS) activity and changes in body movement during perturbed standing. Specifically, linear movement variance, torque variance and body posture were correlated against tibialis anterior and gastrocnemius RMS EMG activity during perturbed standing by vibration of the calf muscles. METHODS: Eighteen healthy pa
Consanguinity and genetic diseases in North Africa and immigrants to Europe.
Endemic diseases are caused by environmental and genetic factors. While in this special issue several chapters deal with environmental factors, including infections, the present focus is on genetic causes of disease clustering due to inbreeding and recessive disease mechanisms. Consanguinity is implying sharing of genetic heritage because of marriage between close relatives originating from a comm
EAU-a work in progress-what comes next?
OH regeneration from methacrolein oxidation investigated in the atmosphere simulation chamber SAPHIR
Hydroxyl radicals (OH) are the most important reagent for the oxidation of trace gases in the atmosphere. OH concentrations measured during recent field campaigns in isoprene-rich environments were unexpectedly large. A number of studies showed that unimolecular reactions of organic peroxy radicals (RO2) formed in the initial reaction step of isoprene with OH play an important role for the OH budg
Polyethylene Glycol or Sodium Picosulphate Based Laxatives Prior to Colonoscopy in Children: Randomized Controlled Trial.
The purpose of this randomized study was to compare the quality of bowel cleansing using either polyethylene glycol (PEG) or sodium picosulphate (NaPico) (primary outcome) in relation to the tolerability and acceptance of these laxatives among children and their caregivers (secondary outcome).
The Women's Health in the Lund Area (WHILA) study-An overview.
The Women's Health in the Lund Area (WHILA) study invited all women (n=10,766) living in the Lund area of Southern Sweden by 1995, who were born between 1935 and 1945. The health screening program included a postal validated questionnaire concerning medical history, drug treatment, family history of diabetes and hypertension, menopausal status, smoking and alcohol habits, education, household, and
Gene therapy for Parkinson's disease.
The once fantastic theoretical concept that patients with Parkinson's disease (PD) would receive gene therapy in an attempt to alleviate their symptoms and potentially modify the course of their disease has become a reality. On the basis of positive preclinical data, four different gene therapy approaches are currently in Phase I or Phase II clinical trials. Some approaches are intended to increas
A Method for Arterial Diameter Change Measurements Using Ultrasonic B-Mode Data.
Arterial diameter change is related to distending blood pressure and is used in estimation of arterial stiffness parameters. A common technique to track the arterial walls is by integration of wall velocities estimated by different methods using cross correlation or tissue Doppler. However, because of the high pulse repetition frequency and the need for separate pulsing sequences, the B-mode image
Differential expression of Axl and Gas6 in renal cell carcinoma reflecting tumor advancement and survival.
PURPOSE: Overexpression of the receptor tyrosine kinase Axl is implicated in several cancers. Therefore, we conducted this study to determine the expression of Axl and its ligand Gas6 in various renal cell carcinoma (RCC) types and in oncocytoma. EXPERIMENTAL DESIGN: Real-time quantitative reverse transcription-PCR was used to quantify tumor mRNA levels for Axl and Gas6 in a cohort (n = 221) of RC
Diode laser spectroscopy for non-invasive monitoring of oxygen in the lungs of newborn infants.
Newborn infants have pulmonary disorders with abnormal gas distribution, e. g. respiratory distress syndrome. Pulmonary radiography is the clinical routine for diagnosis. Our aim was to investigate a novel non-invasive optical technique for rapid non-radiographic bedside detection of oxygen gas in the lungs of full-term newborn infants.
Mast-cell-dependent secretion of CXC chemokines regulates ischemia-reperfusion-induced leukocyte recruitment in the colon.
BACKGROUND AND AIMS: Recruitment of leukocytes in the tissue microvasculature is considered to be a rate-limiting step in ischemia-reperfusion (I/R)-induced inflammation. The objective of this study was to examine the role of mast cells in CXC-chemokine- and I/R-provoked leukocyte recruitment in the colon. MATERIALS AND METHODS: Balb/c- and mast-cell-deficient mice were challenged with the CXC che
Three-dimensional inverse scattering: layer-stripping formulas and ill-posedness results
The authors consider the three-dimensional direct and inverse scattering problems for the Schrodinger equation and for the reduced wave equation with variable velocity. The scatterer is probed with either point sources or plane waves of fixed frequency. They ask the question, 'How does the wave field change when the scatterer is truncated?' Simple formulae for the derivative of the wave field with
