32 research outputs found

    Local preservation of no-signaling in multiparty PT-symmetric evolutions

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    Violation of the no-signaling principle may occur in PT-symmetric evolutions, that is, evolutions that stem from Hamiltonians that are symmetric with respect to parity and time-reversal, of bipartite entangled states. The violation can be avoided by using a non-conventional inner product. We show that even within the formalism that utilizes the conventional Dirac inner product between physical state vectors, it is possible to obtain instances of local preservation of the no-signaling principle for evolutions corresponding to PT-symmetric non-hermitian Hamiltonians with real eigenvalues, of multiparty entangled states, whose bipartite versions still violate the principle. The phenomenon can be witnessed already by using the Greenberger-Horne-Zeilinger state. Interestingly, the generalized W states do not support such a local preservation of no-signaling.Comment: 6 pages, 2 figure

    Investigation of Multiferroic Properties of Scandium Substituted Bismuth Ferrite

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    All the Compponds crystallize in the class of rhombohcdral structure with R3c space group. A systematic structural distortion has been observed in all the compound

    Obstetric and neonatal outcomes of the pregnancies complicated with thrombocytopenia

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    Background: Thrombocytopenia is second most common hematological abnormality in pregnancy after anemia (Incidence 8-10%). The aim of this study is to observe the obstetric and neonatal outcomes of pregnancies complicated with thrombocytopenia and to compare its maternal and fetal outcomes.Methods: The prospective observational study was conducted at tertiary care institute over period of one and half year and 100 cases of thrombocytopenia in present pregnancy were included after fulfilling inclusion and exclusion criteria and obtaining written informed valid consent. Complete history, physical examination and relevant investigations of the patient were documented. Patients were followed up to delivery and outcomes (obstetric, maternal, fetal, neonatal) were studied. The data obtained for all the patients was analyzed with SPSS (SPSS Inc, Chicago) software packages. Statistical comparisons were performed with Pearson’s Chi- square where appropriate with p-value of 37 weeks of gestation. Most (53%) had moderate thrombocytopenia. Incidence of maternal complications was statically significant (P-value 0.038) with most common complication being caesarian section site oozing (9%) followed by placental abruption (4%). There was no statistical significance in degree of thrombocytopenia and need for blood and blood product transfusion (P-value 0.67). Only (2%) neonates of thrombocytopenic mothers had thrombocytopenia and both required treatment.Conclusions: Most common cause of thrombocytopenia in pregnancy was gestational thrombocytopenia with uneventful pregnancy and perinatal outcomes. Few severe cases associated with medical or systematic causes leads to serious catastrophic events which can be avoided by increasing antenatal surveillance and appropriate management by multidisciplinary team of obstetrician, hematologist, anesthesiologist, neonatologist and physician

    Evaluation of endometrial causes of postmenopausal bleeding with it's correlation with endometrial thickness and hysteroscopy findings and endometrial tissue histopathology

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    Background: Postmenopausal bleeding (PMB)accounts for 5% of gynecology visit. All with unexpected uterine bleeding should be evaluated for endometrial carcinoma since this potentially lethal disease is the cause of bleeding in approximately 10 percent patients (range 1 to 25 percent, depending upon risk factors). The aim of the study was to evaluate endometrial causes of postmenopausal bleeding (PMB) with it's correlation with endometrial thickness (ET)and hysteroscopy findings and endometrial tissue histopathology.Methods: A total 50 consecutive cases of PMB fulfilling the inclusion and exclusion criteria and giving informed consent were selected. Each patient was subjected to transvaginal sonography (TVS) in which uterus, adnexa and endometrial thickness (ET) was assessed. Then hysteroscopy and/or dilation and curettage was scheduled at subsequent visit. Endometrial sample was sent for histopathological examination. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and diagnostic accuracy was calculated for ET by TVS and hysteroscopy findings, considering histopathological diagnosis as the gold standard.Results: Most common endometrial cause of PMB was atrophic endometrium (44%). The other causes were endometrial carcinoma (18%), endometrial hyperplasia (18%), endometrial polyp (12%), endometritis (4%), and leiomyoma (4%). The diagnostic accuracy of ET by TVS at a cut-off point of 5 mm was 94% with sensitivity 89.3%, specificity 100%, PPV 100% and NPV 88%. The diagnostic accuracy of hysteroscopy was 98% with sensitivity 96.4%, specificity 100%, PPV 100% and NPV 95.7%.Conclusions: Being relatively cheap, easily accessible, non-invasive, TVS with ET measurement should first line investigation in the evaluation of women with postmenopausal bleeding with suspected endometrial pathology. Although hysteroscopy is more specific and sensitive, in poor resource settings it should be limited to cases with ill-defined endometrial lining, recurrent/ persistent bleeding and cases with endometrial thickness greater than 5 mm irrespective of endometrial echotexture

    Análise competitiva de páginas web varejistas através do marketing em motores de busca

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    Introduction: The present research was carried out at Kalindi College, University of Delhi in 2017. Internet technology has transformed the world into a global village. Due to improved internet/ mobile connectivity and substantial increase in data use, any new or existing products can reach the customer easily through digital marketing. Currently, retail marketing websites attract more than half of internet users. It is not only important to create a content rich product catalogue for the retail website, but also to ensure that the website is at the top of the Search Engine Result Pages (serps) of the Google Search Engine. Methods: The various technical aspects of Search Engine Marketing (sem) of the retail website can be improved substantially by carrying out a comprehensive competitive analysis of existing retail websites. Results: The authors compared and analyzed the apparel category in three competitive retail websites using free Search Engine Optimization (seo) tools. Conclusions: The seo tool can be utilized for increasing website visibility and subsequently, sales revenue. This paper focuses on the link between sem strategy and seo technique for organic and paid search. It also discusses impacts of positive and negative ranking of websites and how such ranking can be improved adopting seo-friendly practices.  Introducción: la presente investigación se llevó a cabo en Kalindi College, Universidad de Delhi en 2017. Internet ha transformado el mundo en una aldea global. Debido a la mejoría en conectividad móvil y el aumento sustancial del uso de datos, cualquier producto nuevo o existente puede llegar al cliente con facilidad a través del marketing digital. Actualmente, los sitios web de marketing minorista atraen a más de la mitad de los usuarios de Internet. Para el sitio web minorista no solo es importante crear un catálogo de productos rico en contenido, sino también garantizar que el sitio web aparezca en la parte superior de las páginas de resultados de búsquedas (serps) del motor de búsqueda de Google. Métodos: varios aspectos técnicos del Search Engine Marketing (sem o marketing de motores de búsqueda) del sitio web minorista se pueden mejorar sustancialmente mediante un análisis competitivo y comprensivo de los sitios web minoristas existentes. Resultados: los autores compararon y analizaron la categoría de indumentaria en tres sitios web minoristas competitivos utilizando herramientas gratuitas del Search Engine Optimization (seo, optimización de motores de búsqueda). Conclusiones: se puede emplear la herramienta seo para aumentar la visibilidad del sitio web y consecuentemente, los ingresos por ventas. Este trabajo se centra en el vínculo entre la estrategia sem y la técnica seo para investigaciones orgánicas y pagadas. También analiza los impactos de la clasificación positiva o negativa de los sitios web y cómo mejorar dicha clasificación adoptando prácticas favorables seo.  Introdução: esta pesquisa foi levada a cabo na Kalindi College, da Universidade de Deli, em 2017. A internet transformou o mundo em uma aldeia global. Devido à melhor conectividade móvel e ao aumento substancial do uso de dados, qualquer produto novo ou existente pode chegar facilmente ao cliente através do marketing digital. Atualmente, as páginas web de marketing varejista atraem a mais da metade dos usuários de internet. Para a página web varejista não só é importante criar um catálogo de produtos farto em conteúdo, mas também garantir que a página web apareça na parte superior das páginas de resultados (serps) do motor de busca do Google.Métodos: vários aspectos técnicos do Search Engine Marketing (sem) da página web varejista podem ser melhorados, substancialmente, através de uma análise competitiva e compreensiva das páginas web varejistas existentes. Resultados: os autores compararam e analisaram a categoria de indumentária, em três páginas web varejistas competitivas, utilizando ferramentas gratuitas de Search Engine Optimization (seo).Conclusões: a ferramenta seo pode ser utilizada para aumentar a visibilidade da página web e, consequentemente, os ingressos por vendas. Este trabalho está centrado no vínculo entre a estratégia sem e a técnica seo para pesquisas orgânicas e pagas. Também analisa os impactos da classificação positiva ou negativa das páginas web e como melhorar essa classificação com a adoção de práticas favoráveis de seo.Originalidade: na competitiva indústria varejista atual, comercializar uma página web que está apenas começando. Esta pesquisa proporciona ideias aos proprietários de páginas web sobre como criar, lançar e manter a página web com práticas amigáveis de seo que possam garantir o tráfego e os ingressos. Limitações: os resultados da pesquisa podem ser implantados, de forma prática, em páginas web de companhias iniciantes no ramo de venda varejista
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