1,191 research outputs found

    Psoas abscess due to mycobacterium tuberculosis: a case report

    Get PDF
    Iliopsoas abscess (IPA), a collection of pus in the iliopsoas compartment that has traditionally been classified into primary and secondary according to its origin, is an infrequent condition worldwide. Mostly active TB is confined to the lung, but approximately 15% are extrapulmonary. The most common types of extrapulmonary TB are, in descending order of frequency, pleural, lymphatic, bone and joint, genitourinary, miliary disease, meningitis, and peritonitis. Tuberculosis (TB) remains as one of the leading opportunistic infection in patients in developing countries. Here we report a rare case of psoas abscess of tubercular origin in patient who presented with back pain and limping. Diagnosis is done based on history, physical examination, plain radiology, microbiological investigation and CT scan of abdomen which revealed a large psoas abscess caused by M. tuberculosis. Patient was diagnosed as psoas abscess due to Mycobacterium tuberculosis and treated empirically with DOTS category I and significant functional improvement was noted on follow up

    Tight lower bound to the geometric measure of quantum discord

    Full text link
    Dakic, Vedral and Brukner [Physical Review Letters \tf{105},190502 (2010)] gave a geometric measure of quantum discord in a bipartite quantum state as the distance of the state from the closest classical quantum (or zero discord) state and derived an explicit formula for a two qubit state. Further, S.Luo and S.Fu [Physical Review A \tf{82}, 034302 (2010)] obtained a generic form of this geometric measure for a general bipartite state and established a lower bound. In this brief report we obtain a rigorous lower bound to the geometric measure of quantum discord in a general bipartite state which dominates that obtained by S.Luo and S.Fu.Comment: 10 pages,2 figures. In the previous versions, a constraint was ignored while optimizing the second term in Eq.(5), in which case, only a lower bound on the geometric discord can be obtained. The title is also consequently changed. Accepted in Phys.Rev.

    ANALYSIS OF SOFT STORY MULTISTORED STEEL STRUCTURE BUILDING

    Get PDF
    This paper focusing on soft storey Multi-storey steel structure buildings, These building are becoming increasingly common and economical in developed and developing countries with the increase in urbanization all over the world. Many of these buildings do not have structural walls at ground floor level to increase the flexibility of the space for recreational use such as parking or for retail or commercial use. these buildings which possess storey that are significantly weaker or more flexible than adjacent storey are known as soft storey buildings, these are characterized by having a story which has a lot of open space. while the un obstructed space of the soft story might be aesthetically or commercially desirable, it also means that there are less opportunities to install shear walls, specialized walls which are designed to distribute lateral forces so that a building can cope with the swaying characteristic of an earthquake. Soft-storey is also called as flexible storey. a large number of buildings with soft storey have been built in recent year. but it showed poor performance during past earthquake. soft story’s are subjected to larger lateral loads during earthquakes and under lateral loads their lateral deformations are greater than those of other floors so the design of structural members of soft stories is critical and it should be different from the upper floors. In this thesis “ analysis of soft-storey for Multi-storeyed steel structure building in zone ” 2 “, applying the analyse and explore the behaviour of soft-storey at different floor level of building under seismic load actions respectively

    Characteristics of Fatal Cases of Pandemic Influenza A (H1N1) from September 2009 to January 2010 in Saurashtra Region, India

    Get PDF
    Background: India reported first case of 2009 pandemic influenza A (H1N1) virus infection in May, 2009 and Saurashtra region in August, 2009. We describe the characteristics of fatal cases of 2009 influenza A (H1N1) infection reported in Saurashtra region. Methods: From September, 2009 to January, 2010, we observed 71 fatal cases that were infected with 2009 influenza A (H1N1) virus and admitted in different hospitals in Rajkot city. Real-time reverse-transcriptase-polymerase-chain-reaction (RT-PCR) testing was used to confirm infection; the clinico-epidemiological features were observed and documented. Results: Median age of the deceased (71) was 29 years, and 57.7% were females. Median time observed was 5 days from onset of illness to diagnosis of influenza A (H1N1), and 57.7% were referred from general practitioner (OR=0.42, CI=0.24-0.74). Median hospital stay reported was 3 days. All admitted patients received oseltamivir, but only 16.9% received it within 2 days of onset of illness. The most common symptoms were cough (97.2%), fever (93%), sore throat and shortness of breath. Co-morbid conditions were present in almost half of the patients who ultimately died, the most common of which was pregnancy (OR=0.15, CI=0.04-0.52). Radiological pneumonia was reported in 98% patients. Conclusion: Residing in urban area, delayed referral from general practitioner, presence of co-existing condition, especially pregnancy was responsible for mortality among influenza A (H1N1) infected positive

    Multipartite entanglement in fermionic systems via a geometric measure

    Full text link
    We study multipartite entanglement in a system consisting of indistinguishable fermions. Specifically, we have proposed a geometric entanglement measure for N spin-1/2 fermions distributed over 2L modes (single particle states). The measure is defined on the 2L qubit space isomorphic to the Fock space for 2L single particle states. This entanglement measure is defined for a given partition of 2L modes containing m >= 2 subsets. Thus this measure applies to m <= 2L partite fermionic system where L is any finite number, giving the number of sites. The Hilbert spaces associated with these subsets may have different dimensions. Further, we have defined the local quantum operations with respect to a given partition of modes. This definition is generic and unifies different ways of dividing a fermionic system into subsystems. We have shown, using a representative case, that the geometric measure is invariant under local unitaries corresponding to a given partition. We explicitly demonstrate the use of the measure to calculate multipartite entanglement in some correlated electron systems. To the best of our knowledge, there is no usable entanglement measure of m > 3 partite fermionic systems in the literature, so that this is the first measure of multipartite entanglement for fermionic systems going beyond the bipartite and tripartite cases.Comment: 25 pages, 8 figure

    Plant genetic engineering, climate change and food security

    Get PDF
    This paper explores whether crop genetic engineering can contribute to addressing food security, as well as enhancing human nutrition and farming under a changing climate. The review is based on peer-refereed literature, using results to determine the potential of this gene technology. It also provides a brief summary of issues surrounding this genetic enhancement approach to plant breeding, and the impacts on farming, livelihoods, and the environment achieved so far. The genetic engineering pipeline looks promising, particularly for adapting more nutritious, input-efficient crops in the development of the world’s farming systems

    The Groenewold - Moyal Plane and its Quantum Physics

    Get PDF
    Quantum theories constructed on the noncommutative spacetime called the Groenewold-Moyal(GM) plane exhibit many interesting properties such as causality violation, Lorentz and CPT non-invariance and twisted statistics. Such violations lead to many striking features that may be tested experimentally. Thus these theories predict Pauli-forbidden transitions due to twisted statistics, anisotropies and acausal effects in the cosmic microwave background radiation in correlations of observables and Lorentz and CPT violations in scattering amplitudes. Such features of quantum physics on the GM plane are surveyed in this review.Comment: 8 pages, Based on the talk given by APB at the XXV Max Born Symposium on Planck Scale Physics, Wroclaw, 29 June-3 July 200

    Evaluation of percutaneous pinning in fracture proximal one-third humerus and fracture dislocation

    Get PDF
    Background: Proximal humerus fracture treatment is still an issue with lot of controversies and various treatment modalities had yielded mixed results. Our aim is to study percutaneous K-wires fixation as a modality of treatment, does not need extensive soft tissue dissection, so small fracture fragments &amp; retains periosteal muscle &amp; ligament attachments which held the fracture fragments together. Complications of open reduction are avoided.Methods: Fractures were classified according to Neer’s Classification system and were treated with closed reduction and K-wire Fixation. They were 16 males and 09 females, with a mean age of 40.5 years. Mean follow-up was of 20.5 months (range 9-24 months). Post-operative mean VAS score and Constant Score of patients was 2.1 (±0.73) and 78.1 (±9.61) at an average follow up of 6 months. Mean duration for union was 6.5 (±1.18) weeks. Patients were followed up at 4, 8, 12 weeks and 3, 6, 9 &amp; 12 months interval.Results: Radiological and functional outcome assessed according to Constant-Murley Shoulder assessment. Complications treated accordingly. Percutaneous K-wire fixation is safe, limited invasive technique and following basic principles of anatomical reduction has excellent results &amp; functional outcome.Conclusions: We concluded that the soft-tissue bridging of the fracture fragments was crucial for the reduction to benefit from the ligamentotaxis effect. This technique worked well for valgus-impacted or three-part fractures. The rate of osteonecrosis was low, and rehabilitation was easier. Overall, the results from these series are quite encouraging

    Secure Data Control: Privacy and Security based on ABE for Access Control over Cloud

    Get PDF
    In today's world, there is a strong&nbsp;requirement for sharing information over cloud.&nbsp;However, privacy and security remains a setback especially when working with bulk amounts of data in the Cloud. Data is abundantly stored outside the control of the data owner’s machine with lack of his knowledge to the data owner, how the data being used and where the data are being stored. So, there is a necessity for the data owner to have a more control over their data, similar to the level of control they possess when the data are being stored on their own machine. For example, when a data owner shares an important file with his colleague, he cannot trust what his colleague will do with his data. In this paper, we try to address this problem by monitoring and preventing unauthorized operations by the data consumer. We present a solution called Secure-Data, which bundles the data owner’s data and specified policy, based on XACML, in an object called Secure-Data object. Secure-Data enforces the policies set out by the data owner by communicating with the cloud based applications to disable certain operations and/or run a background process for monitoring the data. We define a software based protocol that will enable to secure the data in the cloud and will support the use of the android app for authentication purposes

    Thermal quantum and classical correlations in two qubit XX model in a nonuniform external magnetic field

    Full text link
    We investigate how thermal quantum discord (QD) and classical correlations (CC) of a two-qubit one-dimensional XX Heisenberg chain in thermal equilibrium depend on the temperature of the bath as well as on nonuniform external magnetic fields applied to two qubits and varied separately. We show that the behavior of QD differs in many unexpected ways from the thermal entanglement (EOF). For the nonuniform case (B1 = -B2), we find that QD and CC are equal for all values of (B1 = -B2) and for different temperatures. We show that, in this case, the thermal states of the system belong to a class of mixed states and satisfy certain conditions under which QD and CC are equal. The specification of this class and the corresponding conditions are completely general and apply to any quantum system in a state in this class satisfying these conditions. We further find that the relative contributions of QD and CC can be controlled easily by changing the relative magnitudes of B1 and B2. Finally, we connect our results with the monogamy relations between the EOF, CC and the QD of two qubits and the environment.Comment: 8 pages, 13 figures. We connect our results with the monogamy relations between the EOF, CC and the QD of two qubits and the environmen
    • …
    corecore