472 research outputs found

    Microbiological changes in meat and minced meat from beavers (Castor fiber L.) during refrigerated and frozen storage

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    This study aims to evaluate the microbiological status, pH, and water activity of European beaver meat to establish its shelf-life and microbiological safety. In this study, the microbiological profiles of meat and minced meat obtained from the carcasses of beavers were investigated. Microbial evaluation of the chilled meat was performed within 24 h after hunting, on the 7th day and 14th day, and the evaluation of the frozen meat was made during the 11th week of storage. Meat samples were analysed for total viable count (TVC), psychrotrophic bacteria count (PBC), Enterobacteriaceae count (EBC), Escherichia coli count (EC), total staphylococcal count (TSC), lactic acid bacteria count (LABC) and total yeast and mould counts (TYMC). Tests for the presence of pathogenic bacteria from the genus Salmonella and Listeria were also performed. Additionally, the pH and water activity were determined. The initial amount of TVC was 4.94 log CFU/g in meat samples and 4.80 log CFU/g in minced meat. After 14 days of storage, the TVC increased to 8.33 in meat samples and 8.08 log CFU/g in minced meat. Pathogenic bacteria such as Listeria and Salmonella were not found in the beaver meat tested. The microbiological state of meat stored frozen for 11 weeks was comparable to the state found in meat stored refrigerated for seven days regarding the number of microorganisms

    Capsule endoscopy for screening colon tumors

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    Department of General Surgery with a course of endoscopy of the Federal State Budgetary Educational Institution of Higher Education and Medical University of the Ministry of Health of Russia, Leningrad Regional Oncologic Dispensary, Department of Faculty Surgery. prof. A.A. Rusanov of the Federal State Budgetary Educational Institution of Higher Education and Medical University of the Ministry of Health of Russia, Sankt-Petersburg, Russia, Al XIII-lea Congres al Asociației Chirurgilor „Nicolae Anestiadi” și al III-lea Congres al Societății de Endoscopie, Chirurgie miniminvazivă și Ultrasonografie ”V.M.Guțu” din Republica MoldovaIntroduction: Most of the colon tumors are detected in the later stages. The introduction of new, minimally invasive technologies into clinical practice allows to improve the results of the diagnosis of neoplasms. Material and methods: Capsule endoscopy is a procedure for colon examination using a miniature camera, which takes more than 10,000 images of colon at a speed of 4 to 24 frames per second. For the patient, the procedure itself does not cause discomfort. On the day of the study, the patient may do his usual activities. The indications for capsular examination of the colon may be suspected tumor of the colon, a positive test of fecal occult blood test, and the patient is over 50 years old. We made a decision to launch a pilot project for screening the colon among health care workers in Oncology Dispensary of Leningrad Region. Results: In the years 2017-2018, we performed 67 capsule colon examinations for medical workers who had not previously performed a colonoscopy. A total colon investigation was performed in 58 patients (87%). Among these patients 2 malignant tumors of the colon (3.5%) were detected. Colon epithelial neoplasia was detected in 11 patients (19%). These findings contributed to perform colonoscopy with endoscopic polypectomy. Conclusion: Capsule endoscopy of the colon can be used for examination, in cases where colonoscopy is not possible. Capsule endoscopy helps to convince the patient of the need to perform colonoscopy. Capsule endoscopy is a safe method for screening colorectal cancer

    Events in the affective city: Affect, attention and alignment in two ordinary urban events

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    In a representational regime, planned urban events are used by urban planners to render urban projects visible and acceptable. As a corollary of the focus of urban studies on their representational dimension and in spite of a burgeoning literature on the notion of affective urbanism, the experiential character of events remains surprisingly unexplored. This paper argues that an ordinary regime of events is mobilised by city-makers to act on the embodied, affective experience of the city and on the ways urban dwellers know and act upon the city. By analysing planned urban events in their embodied, experiential dimension, we focus on the ways in which, through the design of ephemeral material dispositives, urbanists attempt to encourage citizens to incorporate ways of knowing and acting on space and on the modalities of knowing and acting that are at play. We stage an encounter between critical event studies and Ingoldian approaches to affect and attention, examining two urban events in a Swiss canton. We show how intense encounters with urban matter are staged in an attempt to modulate affects, guide attention, and produce alignment with a specific political project, asking urban dwellers either to embody a project still in the making or to cultivate expectations regarding an already-written future

    Multi-Scalar-Singlet Extension of the Standard Model - the Case for Dark Matter and an Invisible Higgs Boson

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    We consider a simple extension of the Standard Model by the addition of N real scalar gauge singlets \vp that are candidates for Dark Matter. By collecting theoretical and experimental constraints we determine the space of allowed parameters of the model. The possibility of ameliorating the little hierarchy problem within the multi-singlet model is discussed. The Spergel-Steinhardt solution of the Dark Matter density cusp problem is revisited. It is shown that fitting the recent CRESST-II data for Dark Matter nucleus scattering implies that the standard Higgs boson decays predominantly into pairs of Dark Matter scalars. It that case discovery of the Higgs boson at LHC and Tevatron is impossible. The most likely mass of the dark scalars is in the range 15 GeV \lsim \mvp \lsim 50 GeV with BR(h \to \vp\vp) up to 96%.Comment: 18 pages, 15 figure

    The Universal One-Loop Effective Action

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    We present the universal one-loop effective action for all operators of dimension up to six obtained by integrating out massive, non-degenerate multiplets. Our general expression may be applied to loops of heavy fermions or bosons, and has been checked against partial results available in the literature. The broad applicability of this approach simplifies one-loop matching from an ultraviolet model to a lower-energy effective field theory (EFT), a procedure which is now reduced to the evaluation of a combination of matrices in our universal expression, without any loop integrals to evaluate. We illustrate the relationship of our results to the Standard Model (SM) EFT, using as an example the supersymmetric stop and sbottom squark Lagrangian and extracting from our universal expression the Wilson coefficients of dimension-six operators composed of SM fields.Comment: 30 pages, v2 contains additional comments and corrects typos, version accepted for publication in JHE

    EBMT prospective observational study on allogeneic hematopoietic stem cell transplantation in T-prolymphocytic leukemia (T-PLL)

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    Preliminary data suggest that allogeneic stem cell transplantation (allo-SCT) may be effective in T-prolymphocytic leukemia (T-PLL). The purpose of the present observational study was to assess the outcome of allo-SCT in patients aged 65 years or younger with a centrally confirmed diagnosis of T-PLL. Patients were consecutively registered with the EBMT at the time of transplantation and followed by routine EBMT monitoring but with an extended dataset. Between 2007 and 2012, 37 evaluable patients (median age 56 years) were accrued. Pre-treatment contained alemtuzumab in 95% of patients. Sixty-two percent were in complete remission (CR) at the time of allo-SCT. Conditioning contained total body irradiation with 6 Gy or more (TBI6) in 30% of patients. With a median follow-up of 50 months, the 4-year non-relapse mortality, relapse incidence, progression-free (PFS) and overall survival were 32, 38, 30 and 42%, respectively. By univariate analysis, TBI6 in the conditioning was the only significant predictor for a low relapse risk, and an interval between diagnosis and allo-SCT of more than 12 months was associated with a lower NRM. This study confirms for the first time prospectively that allo-SCT can provide long-term disease control in a sizable albeit limited proportion of patients with T-PLL.Peer reviewe

    Cycle-finite module categories

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    We describe the structure of module categories of finite dimensional algebras over an algebraically closed field for which the cycles of nonzero nonisomorphisms between indecomposable finite dimensional modules are finite (do not belong to the infinite Jacobson radical of the module category). Moreover, geometric and homological properties of these module categories are exhibited

    Endoscopic treatment of patients with early forms of gastric cancer

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    Leningrad regional oncological dispensary, Russia, Al XIII-lea Congres al Asociației Chirurgilor „Nicolae Anestiadi” și al III-lea Congres al Societății de Endoscopie, Chirurgie miniminvazivă și Ultrasonografie ”V.M.Guțu” din Republica MoldovaBackground: Currently, most patients with gastric tumors are detected in late stages. Early diagnosis is a major factor in improving treatment outcomes. On the other hand, patients who are diagnosed on early stages often receive aggressive treatment and are not subjects to less invasive interventions. Material and Methods: In our clinic we have been using endoscopic surgery for early gastric cancer since 2009. Japanese colleagues are the most experienced in this kind of treatment that is why we follow the recommendations of Japanese Gastric Cancer Association (JGCA). The main criterion provided that endoscopic removal is possible is the depth of tumor invasion. We evaluate the depth of invasion primarily by endoscopic ultrasonography. According to our data the accuracy of this method is 94%. The main operation used for the treatment of early gastric cancer is endoscopic submucosal dissection (ESD). Its main advantages are single block resection within healthy tissues and adequate morphological assessment of the removed tumor. In the last ten years we have performed 148 ESD (145 patients) for early forms of gastric cancer. Surgeries were radical in 95% of cases. Results:There were no cases of postoperative mortality. Progression of the disease was noted only in one patient. These endoscopic surgeries have proved to be effective, safe and reasonable in treating early gastric cancer. Conclusions: Thus, endoscopic surgery significantly reduces the cost of treatment and hospital stay (average - 3.7 days), facilitates rehabilitation and improves the quality of patients’ life

    Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR

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    Substantial experimental and theoretical efforts worldwide are devoted to explore the phase diagram of strongly interacting matter. At LHC and top RHIC energies, QCD matter is studied at very high temperatures and nearly vanishing net-baryon densities. There is evidence that a Quark-Gluon-Plasma (QGP) was created at experiments at RHIC and LHC. The transition from the QGP back to the hadron gas is found to be a smooth cross over. For larger net-baryon densities and lower temperatures, it is expected that the QCD phase diagram exhibits a rich structure, such as a first-order phase transition between hadronic and partonic matter which terminates in a critical point, or exotic phases like quarkyonic matter. The discovery of these landmarks would be a breakthrough in our understanding of the strong interaction and is therefore in the focus of various high-energy heavy-ion research programs. The Compressed Baryonic Matter (CBM) experiment at FAIR will play a unique role in the exploration of the QCD phase diagram in the region of high net-baryon densities, because it is designed to run at unprecedented interaction rates. High-rate operation is the key prerequisite for high-precision measurements of multi-differential observables and of rare diagnostic probes which are sensitive to the dense phase of the nuclear fireball. The goal of the CBM experiment at SIS100 (sqrt(s_NN) = 2.7 - 4.9 GeV) is to discover fundamental properties of QCD matter: the phase structure at large baryon-chemical potentials (mu_B > 500 MeV), effects of chiral symmetry, and the equation-of-state at high density as it is expected to occur in the core of neutron stars. In this article, we review the motivation for and the physics programme of CBM, including activities before the start of data taking in 2022, in the context of the worldwide efforts to explore high-density QCD matter.Comment: 15 pages, 11 figures. Published in European Physical Journal
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