110 research outputs found

    A continuation method for tensor complementarity problems

    Full text link
    We introduce a Kojima-Megiddo-Mizuno type continuation method for solving tensor complementarity problems. We show that there exists a bounded continuation trajectory when the tensor is strictly semi-positive and any limit point tracing the trajectory gives a solution of the tensor complementarity problem. Moreover, when the tensor is strong strictly semi-positive, tracing the trajectory will converge to the unique solution. Some numerical results are given to illustrate the effectiveness of the method.Comment: 15 pages, 4 table

    Effects of Shenque Moxibustion on Behavioral Changes and Brain Oxidative State in Apolipoprotein E-Deficient Mice

    Get PDF
    Purpose. To determine whether moxibustion influences the learning and memory behavior of ApoE−/− male mice, and investigate the mechanism of moxibustion on the alteration of oxidized proteins (glial fibrillary acidic protein, β-amyloid) in hippocampus. Methods. Thirty-three ApoE−/− mice were randomly divided into 3 groups (n=11/group): moxibustion, sham moxibustion, and no treatment control. Wild-type C57BL/6 mice n=13 were used for normal control. Moxibustion was performed with Shenque (RN8) moxibustion for 20 minutes per day, 6 days/week for 12 weeks. In sham control, the procedure was similar except burning of the moxa stick. Behavioral tests (step-down test and Morris water maze task) were conducted in the 13th week. The mice were then sacrificed and the tissues were harvested for immune-histochemical staining. Results. In the step-down test, the moxibustion group had shorter reaction time in training record and committed less mistakes compared to sham control. In immune-histochemical study, the moxibustion group expressed lower level of GFAP and less aggregation of β-amyloid in the hippocampus than the sham control. Conclusion. Our findings suggest that moxibustion may enhance learning capability of ApoE−/− mice. The mechanism may be via inhibiting oxidized proteins (GFAP and β-amyloid) in astrocytes

    High speed self-testing quantum random number generation without detection loophole

    Full text link
    Quantum mechanics provides means of generating genuine randomness that is impossible with deterministic classical processes. Remarkably, the unpredictability of randomness can be certified in a self-testing manner that is independent of implementation devices. Here, we present an experimental demonstration of self-testing quantum random number generation based on an detection-loophole free Bell test with entangled photons. In the randomness analysis, without the assumption of independent identical distribution, we consider the worst case scenario that the adversary launches the most powerful attacks against quantum adversary. After considering statistical fluctuations and applying an 80 Gb ×\times 45.6 Mb Toeplitz matrix hashing, we achieve a final random bit rate of 114 bits/s, with a failure probability less than 10−510^{-5}. Such self-testing random number generators mark a critical step towards realistic applications in cryptography and fundamental physics tests.Comment: 34 pages, 10 figure

    A desinstitucionalização e as alternativas habitacionais ao dispor de indivíduos com perturbações mentais: Um novo modelo habitacional – A habitação apoiada

    Get PDF
    Desde o início do processo de desinstitucionalização desinstitucionalização que este se tem vindo a deparar com dificuldades. Passando pelos poucos recursos ao dispor dos serviços de saúde mental, à tendência para trabalhar com os elementos que apresentam maiores probabilidades de sucesso, à não articulação entre os serviços hospitalares e os centros comunitários de saúde mental, até à falta de investimentos em alternativas habitacionais de carácter permanente. Estas têm sido algumas das situações a que os consumidores de serviços de saúde mental se têm sujeitado. Actualmente, assistimos à emergência de um paradigma que assenta na crença de que se deverá prestar apoio a estes consumidores numa casa tipicamente normal, com uma vivência na comunidade, em que o apoio é disponibilizado consoante as necessidades de cada indivíduo sem que exista uma limitação temporal à sua prestação. Torna-se assim necessário criar novos papéis para os técnicos, no sentido de que estes ajudem os consumidores a escolher, a obter, e a manter uma habitação. É pois urgente o desenvolvimento de um conjunto diversificado de alternativas habitacionais que se baseiem nos recursos e capacidades das comunidades locais, no sentido de garantir que o processo de desinstitucionalização se conclua com sucesso. Palavras-chave: desinstitucionalização, habitação apoiada, satisfação dos consumidores, doença mental.ABSTRACT: Since its beginning the deinstitutiondeinstitutionalization process has faced some difficulties, such as the mental health services lack of resources, the trend to work with the individual who presents higher probability of success, the lack of articulation between hospital services and community mental health centers, and the lack of investments on accommodations for long periods of time. These are some of the situations that consumers of mental health services have endured. Nowadays we witness the emerging of a paradigm which lies on the idea that these consumers need to be supported at a ordinary house, living in community, where the support is provided according to each person’s needs, and without a time limit. This paradigm also creates a need for the professionals to find new roles so that they will be able to help the consumers to choose, get, and keep a home. To ensure the success of deinstitutionalization it is vital that the establishment of different alternatives of accommodation be based on communities’ resources and capabilities.info:eu-repo/semantics/publishedVersio

    Field demonstration of distributed quantum sensing without post-selection

    Full text link
    Distributed quantum sensing can provide quantum-enhanced sensitivity beyond the shot-noise limit (SNL) for sensing spatially distributed parameters. To date, distributed quantum sensing experiments have been mostly accomplished in laboratory environments without a real space separation for the sensors. In addition, the post-selection is normally assumed to demonstrate the sensitivity advantage over the SNL. Here, we demonstrate distributed quantum sensing in field and show the unconditional violation (without post-selection) of SNL up to 0.916 dB for the field distance of 240 m. The achievement is based on a loophole free Bell test setup with entangled photon pairs at the averaged heralding efficiency of 73.88%. Moreover, to test quantum sensing in real life, we demonstrate the experiment for long distances (with 10-km fiber) together with the sensing of a completely random and unknown parameter. The results represent an important step towards a practical quantum sensing network for widespread applications.Comment: 8 pages, 5 figure
    • …
    corecore