26 research outputs found

    Distillation of entanglement by projection on permutationally invariant subspaces

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    We consider distillation of entanglement from two qubit states which are mixtures of three mutually orthogonal states: two pure entangled states and one pure product state. We distill entanglement from such states by projecting n copies of the state on permutationally invariant subspace and then applying one-way hashing protocol. We find analytical expressions for the rate of the protocol. We also generalize this method to higher dimensional systems. To get analytical expression for two qubit case, we faced a mathematical problem of diagonalizing a family of matrices enjoying some symmetries w.r.t. to symmetric group. We have solved this problem in two ways: (i) directly, by use of Schur-Weyl decomposition and Young symmetrizers (ii) showing that the problem is equivalent to a problem of diagonalizing adjacency matrices in a particular instance of a so called algebraic association scheme.Comment: 22 pages, comments welcom

    The Differences in the Prevalence of Cardiovascular Disease, Its Risk Factors, and Achievement of Therapeutic Goals among Urban and Rural Primary Care Patients in Poland: Results from the LIPIDOGRAM 2015 Study

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    A nationwide cross-sectional study, LIPIDOGRAM2015, was carried out in Poland in the years 2015 and 2016. A total of 438 primary care physicians enrolled 13,724 adult patients that sought medical care in primary health care practices. The prevalence of hypertension, diabetes mellitus, dyslipidaemia, and CVD were similar in urban and rural areas (49.5 vs. 49.4%; 13.7 vs. 13.1%; 84.2 vs. 85.2%; 14.4 vs. 14.2%, respectively). The prevalence of obesity (32.3 vs. 37.5%, p < 0.01) and excessive waist circumference (77.5 vs. 80.7%, p < 0.01), as well as abdominal obesity (43.2 vs. 46.4%, p < 0.01), were higher in rural areas in both genders. Mean levels of LDL-C (128 vs. 130 mg/dL, p = 0.04) and non-HDL-C (147 vs. 148 mg/dL, p = 0.03) were slightly higher in rural populations. Altogether, 14.3% of patients with CVD from urban areas and 11.3% from rural areas reached LDL <70 mg/dL (p = 0.04). There were no important differences in the prevalence of hypertension, diabetes, dyslipidaemia, and CVD, or in mean levels of blood pressure, cholesterol fractions, glucose, and HbA1c between Polish urban and rural primary care patient populations. A high proportion of patients in cities and an even-higher proportion in rural areas did not reach the recommended targets for blood pressure, LDL-C, and HbA1c, indicating the need for novel CVD-prevention programs

    The prevalence of cardiovascular risk factors and cardiovascular disease among primary care patients in Poland:results from the LIPIDOGRAM2015 study

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    BACKGROUND AND AIM: To estimate the prevalence of cardiovascular (CV) disease and CV risk factors among Polish patients. METHODS: A nationwide cross-sectional study, LIPIDOGRAM2015, was carried out in Poland in the 4th quarter of 2015 and 1st and 2nd quarters of 2016; 438 primary care physicians enrolled 13,724 adult patients that sought medical care in primary health care practices. RESULTS: Nearly 19% of men and approximately 12% of women had cardiovascular disease (CVD). Over 60% of the recruited patients had hypertension (HTN), >80% had dyslipidaemia and <15% of patients were diagnosed with diabetes (DM). All of these disorders were more frequent in men. In 80% of patients the waist circumference exceed norm for the European population. Less than half of the patients were current smokers or had smoked in the past. Patients with CVD had significantly higher blood pressure and glucose levels but lower low density lipoprotein-cholesterol level. CONCLUSIONS: The prevalence of CVD and CV risk factors among patients in Poland is high. CVD is more common in men than in women. The most common CV risk factors are excess waist circumference, dyslipidaemia and HTN. Family physicians should conduct activities to prevent, diagnose early and treat CVD in the primary health care population

    The Differences in the Prevalence of Cardiovascular Disease, Its Risk Factors, and Achievement of Therapeutic Goals among Urban and Rural Primary Care Patients in Poland: Results from the LIPIDOGRAM 2015 Study

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    A nationwide cross-sectional study, LIPIDOGRAM2015, was carried out in Poland in the years 2015 and 2016. A total of 438 primary care physicians enrolled 13,724 adult patients that sought medical care in primary health care practices. The prevalence of hypertension, diabetes mellitus, dyslipidaemia, and CVD were similar in urban and rural areas (49.5 vs. 49.4%; 13.7 vs. 13.1%; 84.2 vs. 85.2%; 14.4 vs. 14.2%, respectively). The prevalence of obesity (32.3 vs. 37.5%, p < 0.01) and excessive waist circumference (77.5 vs. 80.7%, p < 0.01), as well as abdominal obesity (p = 43.2 vs. 46.4%, p < 0.01), were higher in rural areas in both genders. Mean levels of LDL-C (128 vs. 130 mg/dL, p = 0.04) and non-HDL-C (147 vs. 148 mg/dL, p = 0.03) were slightly higher in rural populations. Altogether, 14.3% of patients with CVD from urban areas and 11.3% from rural areas reached LDL <70 mg/dL (p = 0.04). There were no important differences in the prevalence of hypertension, diabetes, dyslipidaemia, and CVD, or in mean levels of blood pressure, cholesterol fractions, glucose, and HbA1c between Polish urban and rural primary care patient populations. A high proportion of patients in cities and an even-higher proportion in rural areas did not reach the recommended targets for blood pressure, LDL-C, and HbA1c, indicating the need for novel CVD-prevention programs

    The Differences in the Prevalence of Cardiovascular Disease, Its Risk Factors, and Achievement of Therapeutic Goals among Urban and Rural Primary Care Patients in Poland: Results from the LIPIDOGRAM 2015 Study

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    From MDPI via Jisc Publications RouterHistory: accepted 2021-11-28, pub-electronic 2021-11-30Publication status: PublishedFunder: Valeant Pharmaceuticals; Grant(s): unrestricted educational grantA nationwide cross-sectional study, LIPIDOGRAM2015, was carried out in Poland in the years 2015 and 2016. A total of 438 primary care physicians enrolled 13,724 adult patients that sought medical care in primary health care practices. The prevalence of hypertension, diabetes mellitus, dyslipidaemia, and CVD were similar in urban and rural areas (49.5 vs. 49.4%; 13.7 vs. 13.1%; 84.2 vs. 85.2%; 14.4 vs. 14.2%, respectively). The prevalence of obesity (32.3 vs. 37.5%, p 0.01) and excessive waist circumference (77.5 vs. 80.7%, p 0.01), as well as abdominal obesity (p = 43.2 vs. 46.4%, p 0.01), were higher in rural areas in both genders. Mean levels of LDL-C (128 vs. 130 mg/dL, p = 0.04) and non-HDL-C (147 vs. 148 mg/dL, p = 0.03) were slightly higher in rural populations. Altogether, 14.3% of patients with CVD from urban areas and 11.3% from rural areas reached LDL 70 mg/dL (p = 0.04). There were no important differences in the prevalence of hypertension, diabetes, dyslipidaemia, and CVD, or in mean levels of blood pressure, cholesterol fractions, glucose, and HbA1c between Polish urban and rural primary care patient populations. A high proportion of patients in cities and an even-higher proportion in rural areas did not reach the recommended targets for blood pressure, LDL-C, and HbA1c, indicating the need for novel CVD-prevention programs

    Aseptic osteonecrosis

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    Jałowa martwica kości (JMK) występująca u ludzi narażonych na ekspozycje hiperbaryczne jest poważnym problemem profilaktycznym, diagnostycznym, leczniczym i orzeczniczym. Zmiany o typie JMK lokalizują się najczęściej w okolicy nasad i przynasad dużych kości długich i wykrywane są badaniem radiologicznym, tomografią komputerową, lub rezonansem magnetycznym. Jeżeli zmiany nie dotyczą powierzchni stawowych, mogą pozostać bezobjawowe. Leczenie JMK opiera się na postępowaniu chirurgicznym i nie zawsze daje zadowalające wyniki.Aseptic osteonecrosis occurrent at subject people on hyperbaric expositions is a serious problem preventive, diagnostic, medicamentosa and of jurisdiction. Changes about the type locate themselves most often in neighbourhood bases and metaphysises of large os longums and are detected an actinoscopy or with the computer scanning. If changes do not refer articular surfaces, can stay asymptomatic. The treatment is based on the surgical conduct and not always gives satisfactory results

    Symulacje awarii rurociągów przeprowadzone na wybranej sieci wodociągowej – analiza przypadku

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    Głównym celem pracy jest przeprowadzenie symulacji awarii przewodów przewodów wodociągowych, za pomocą stworzonego modelu hydraulicznego sieci z wykorzystaniem programu Epanet 2. W modelu zawarta jest współpraca pompowni drugiego stopnia ze zbiornikami wyrównawczymi znajdującymi się na sieci. Bazując na tych parametrach przeprowadzono symulację pracy sieci wodociągowej, a dzięki wyłączeniem odcinków przewodów wodociągowych symulację awarii. Analizowanie awarii pozwoliło na scharakteryzowanie dostawy wody do odbiorców w tym zmian, jakie występują na sieci podczas symulowania awarii.The main goal of this work is to simulate the failure of water pipe network, using the hydraulic model of the network created through Epanet 2 program. The model includes the cooperation of the second stage pumping station with the expansion tanks located in the network. Based on these parameters, the simulation operation of water supply network was performed, as well as failure simulation on the basis of closing some sections of water pipe network. Failure analysis allowed to perform characteristics of the water supply system including pressure changes that occur in the network during failure simulation

    Badania sondażowe preferencji konsumenckich na temat funkcjonowania oraz zarządzania dostawą wody

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    The permanent and long-lasting development of the civilization influences the growth of the threat occurrence connected with the functioning of Water Supply System (WSS). The presented methodology can be used to describe the functioning of the public water supply using the evaluation of its proper functioning and allows for implementation to determine proper operation of water network. The expanded methodology of conducted surveys of recipients in the field of the effectiveness of the water supply system is the basis for a comprehensive assessment of its proper functioning. Consumer opinions may be used in determining water supply reliability standards and the rules for granting discounts and rebates in the case of restrictions and interruptions in water supply. A significant issue is the assessment by respondents nuisance interruptions in water supply (time and frequency), knowledge of the causes, inconveniencing and losses that causes lack of water supply. In the work the results of consumer survey during undesirable events in Polish water networks were presented.Stały i długotrwały rozwój cywilizacji wpływa na wzrost występowania zagrożeń związanych z funkcjonowaniem systemu zaopatrzenia w wodę (SZW). Prezentowana metodologia może być stosowana w celu oceny prawidłowego funkcjonowania wodociągów. Opinie konsumentów mogą być stosowane przy określaniu standardów niezawodności usług wodociągowych oraz zasad udzielania bonifikat i upustów w przypadku ich niedotrzymania. Ważnym zagadnieniem jest ocena przez respondentów uciążliwości (czasu oraz częstotliwości), uniedogodnień, a także wielkości strat finansowych spowodowanych brakiem dostawy wody. W pracy przedstawiono wyniki badań oceny konsumentów podczas zdarzeń niepożądanych w polskich systemach wodociągowych

    Analysis of Material Costs Used for Failure Removal of Water Supply Networks

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    Koszty usuwania awarii przewodów można rozdzielić na koszty materiałów, sprzętu oraz robocizny. Opracowanie dotyczy analizy kosztów materiałów związanych z usuwaniem awarii rurociągów wodociągowych. Podstawą pracy są dane eksploatacyjne zebrane podczas usuwania 302 awarii przewodów w mieście o liczbie mieszkańców przekraczającej 100 tys. Zauważono zależność kosztów materiałów od średnicy oraz materiału przewodu, które rosną wraz ze wzrostem średnicy. Zróżnicowanie kosztów jest również wynikiem lokalizacji przewodu – tam gdzie wymagany jest wysoki stopień zagęszczenia gruntu przeprowadza się jego wymianę, co skutkuje wzrostem kosztów materiałów, przewody prowadzone w pasie drogowym charakteryzuje więc wyższy koszt materiałów. W badanym systemie zaopatrzenia w wodę średni koszt materiałów użytych do naprawy awarii wyniósł 517 zł (poziom cen 2015 rok), był niższy od kosztów robocizny, które wyniosły 800 zł. W 47% awarii konieczne było zastosowanie kruszyw, co przeciętnie podniosło koszt materiałów w tym przypadku o 320 zł.Costs of pipe failure removal cables can be separated into the cost of materials, equipment and labor. The paper concerns the analysis of material costs associated with failure removal of water supply pipelines. The basis of the work constitutes operational data collected during the removal of 302 failures on pipes in city with a population exceeding 100 thousand. The dependence of material costs and the pipe diameter, which grow with increasing diameter, is noted. Cost diversification is also the result of the location of the pipe – where a high degree of soil compaction is required, the exchange is performed, resulting in material costs increase, so the pipes in the lane are characterized by higher material costs. In the analyzed water supply system average cost of materials used to repair the failure amounted to 517 zł (price level for 2015 years) and was lower than labor costs, which amounted to 800 zł. In 47% of the failure it was necessary to use aggregates, which on average increased the cost of materials in this case by 320 zł
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