5,336 research outputs found
Molecular Pathogenesis of Cholangiocarcinoma
Epidemiological data from the last years show an increasing trend of incidence and mortality of cholangiocarcinoma (CC) worldwide. Many pathophysiologic aspects of this neoplasia are still unknown and need to be fully discovered. However, several progresses were recently made in order to establish the molecular mechanisms involved in the transformation and growth of malignant cholangiocytes. The principal concept that at least seems to be established is that cholangiocarcinogenesis is a multistep cellular process evolving from a normal condition of the epithelial biliary cells through a chronic inflammation status ending with malignant transformation. The bad prognosis related to CC justifies why a better identification of the molecular mechanisms involved in the growth and progression of this cancer is required for the development of effective preventive measures and valid treatment regimens. This Paper describes the scientific progresses made in the last years in defining the molecular pathways implicated in the generation of this devastating disease
Relationship of hyperglycaemia, hypoglycaemia, and glucose variability to atherosclerotic disease in type 2 diabetes
Objective: Type 2 diabetes mellitus (T2DM) is known to be associated with increased cardiovascular risk. The aim of this study was therefore to investigate the independent eïŹects of hyperglycaemia, hypoglycaemia, and glucose variability on microvascular and macrovascular disease in T2DM. Methods. Subjects with T2DM of 7.8mmol/L (ÎČ=15.83, p=0005) was the sole independent predictor of albuminuria in generalised linear regression. Conclusions. This study demonstrates that hypoglycaemia is associated with the occurrence of atherosclerotic disease while hyperglycaemia is associated with microvascular disease in a Caucasian population with T2DM of recent duration.peer-reviewe
The Psychosomatic Practice.
There is increasing awareness of the limitations of the disease-oriented approach in medical care. The primary goal of psychosomatic medicine is to correct this inadequacy by incorporation of innovative operational strategies into clinical practice. Psychosomatic practice can be recognized by 2 distinctive features: the holistic approach to patient management (encompassing psychosocial factors) and the clinical model of reasoning (which reflects a multifactorial frame of reference). A basic psychosomatic assumption is the consideration of patients as partners in managing disease. The partnership paradigm includes collaborative care (a patient-physician relationship in which physicians and patients make health decisions together) and implementation of self-management (a plan that provides patients with problem-solving skills to enhance their self-efficacy). Pointing to strategies that focus on individual needs may improve patient quality of life and final outcomes
Preliminary tests on a wireless sensor network for pervasive dust monitoring in construction sites
One of the critical aspects in health and safety is the control of fine particle emissions from demolition and construction activities. Such exposure is very often the cause of professional illnesses causing a relevant economic burden for welfare and insurance institutions, besides harming workers. Hence this paper performs a feasibility study of a realtime control system of fine particle concentration on construction sites. It was conceived as a ZigbeeTM based wireless, pervasive and non-invasive system, which is easy to deploy over the site and relatively cheap. Dust sensors were interfaced with the system and calibrated in the laboratory. The prototype is described in detail and tested under controlled and real conditions, in order to determine its potential for application. The prototype was shown to be an excellent tool to support health and safety inspectors, to provide in real-time a broad map of dust concentration over the whole extension of the site, provided that calibration coefficients are worked out for the various types of dust which can be encountered on the site
Well-being therapy: Conceptual and technical issues
Abstract Well-being therapy is a short-term, well-being-enhancing psychotherapeutic strategy. It is based on Carol D. Ryff's multidimensional model of psychological wellbeing, encompassing environmental mastery, personal growth, purpose in life, autonomy, self-acceptance and positive relations with others. Its conceptual and technical issues are described. It may be applied as a relapsepreventive strategy in the residual phase of affective (mood and anxiety) disorders, as an additional ingredient of cognitive behavioral packages, in patients with affective disorders who failed to respond to standard pharmacological and psychotherapeutic treatments, in body image disorders and in psychosomatic medicine. The first validation studies appeared to be promising. The technique is in its preliminary stage of development and may undergo major changes in the next years. It is hoped it may herald a new trend of psychotherapy research and practice in the current symptom-oriented settings
Operation of a LAr-TPC equipped with a multilayer LEM charge readout
A novel detector for the ionization signal in a single phase LAr-TPC, based
on the adoption of a multilayer Large Electron Multiplier (LEM) replacing the
traditional anodic wire arrays, has been experimented in the ICARINO test
facility at the INFN Laboratories in Legnaro. Cosmic muon tracks were detected
allowing the measurement of energy deposition and a first determination of the
signal to noise ratio. The analysis of the recorded events demonstrated the 3D
reconstruction capability of ionizing events in this device in liquid Argon,
collecting a fraction of about 90% of the ionization signal with signal to
noise ratio similar to that measured with more traditional wire chambersComment: 9 pages, 7 Figure
EFFECT OF DIFFERENT ILLUMINATION SOURCES ON COLOUR AND OXIDATIVE STABILITY OF SEASONED COPPA DI PARMA PGI
The influence of different lighting durations, lamps and modified atmosphere packaging (MAP) on the colour and oxidative stability of lipids was studied in Coppa di Parma PGI. The samples were stored (4 degrees C) in darkness or lighted by UV-free lamps. In trials 1 and 2, the samples were lighted 24 and 12 h/day, respectively, and were packaged in air. In trial 3, samples were packaged in MA (70% N-2/30% CO2) and lighted 12 h/day. In air, illumination reduced oxidative stability, redness, colour saturation and increased the Hue angle. In MAP, the lighting conditions did not affect colour and oxidative stability. During storage the lipid oxidation increased. Overall, light negatively affected the studied parameters
Determining insurable units for index-based livestock insurance in northern Kenya and southern Ethiopia
Department for International Development, United KingdomDepartment of Foreign Affairs and Trade, AustraliaWorld BankUnited States Agency for International Developmen
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