4,024 research outputs found

    Photon phonon entanglement in coupled optomechanical arrays

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    We consider an array of three optomechanical cavities coupled either reversibly or irreversibly to each other and calculate the amount of entanglement between the different optical and mechanical modes. We show the composite system exhibits intercavity photon-phonon entanglement.Comment: Restructured paper after referee comments, Published versio

    Anodic processes in dimethylsulfoxide water solution

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    An Application of Single-Valued Neutrosophic Sets in Medical Diagnosis

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    In this paper, we present the use of single-valued neutrosophic sets in medical diagnosis by using distance measures and similarity measures. Using interconnection between single-valued neutrosophic sets and symptoms of patient, we determine the type of disease. We define new distance formulas for single valued neutrosophic sets. We develop two new medical diagnosis algorithms under neutrosophic environment. We also solve a numerical example to illustrate the proposed algorithms and finally, we compare the obtained results

    Single-photon optomechanics in the strong coupling regime

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    We give a theoretical description of a coherently driven opto-mechanical system with a single added photon. The photon source is modeled as a cavity which initially contains one photon and which is irreversibly coupled to the opto-mechanical system. We show that the probability for the additional photon to be emitted by the opto-mechanical cavity will exhibit oscillations under a Lorentzian envelope, when the driven interaction with the mechanical resonator is strong enough. Our scheme provides a feasible route towards quantum state transfer between optical photons and micromechanical resonators.Comment: 14 pages, 6 figure

    Scope of Non-estrogenic Steroidal Congeners against Breast Cancer

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    Various novel non-estrogenic steroidal D-ring substituted analogs were synthesized and evaluated for their breast cancer activity against human breast cancer cell lines. The good cytotoxic results obtained against the breast cancer cell lines throws new insights into the field as the analogs are non 17β –Hydroxy estrogenic derivatives which are considered to be pivotal for the potent estrogenic activity. The synthesized steroidal analogs provide a very good platform for mechanistic studies of the interaction between non-esterogenic steroids and estrogen receptors

    Reversible isolated thrombocytopenia: a rare adverse effect of diclofenac infusion

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    Diclofenac infusion is prescribed for acute painful and inflammatory conditions in intensive care. Thrombocytopenia is a very rare adverse effect of diclofenac infusion. We report a case of thrombocytopenia due to diclofenac infusion, occurring in a 32-year-old male treated conservatively for acute appendicitis. The thrombocytopenia recovered completely with the discontinuation of the drug. The rarity, clinical importance, and the diagnostic difficulty associated with this case prompted us to report it here

    Anxiety mediates the relationship between perfectionism and insomnia symptoms: A longitudinal study

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    Objectives Individuals with insomnia often report aspects of perfectionism and symptoms of anxiety and depression. Investigation of these factors together has been limited. As such, the aim of the present study was to examine the extent to which the association between perfectionism and insomnia symptoms was mediated by anxiety and depression, concurrently and longitudinally. Methods Seventy-six members from the general-population participated at baseline. Data from 57 participants were subsequently analysed at twelve-month follow-up. Insomnia symptoms were assessed using The Insomnia Severity Index (ISI). Perfectionism was assessed using two Multidimensional Perfectionism Scales (F-MPS; HF-MPS). Symptoms of anxiety and depression were assessed using The Hospital Anxiety and Depression Scale (HADS). Correlational analysis examined longitudinal associations between perfectionism and insomnia symptoms. Hierarchical regression analysis examined whether significant associations remained after controlling for anxiety and depression. Results Baseline insomnia symptoms were associated with future doubts about action. Further, this relationship was mediated by preceding symptoms of anxiety and concurrent symptoms of insomnia. Similarly, baseline insomnia symptoms were also associated with future parental criticism. However this relationship was partially mediated by preceding symptoms of anxiety, and was not mediated by concurrent insomnia symptoms. Conclusions Symptoms of insomnia appear to be related to an increase in negative perfectionistic thinking in the form of doubts about action and parental criticism, however these relationships appear to be mediated by symptoms of anxiety. Therefore, treatments for insomnia should address anxiety symptoms with the prospect of preventing the accentuation of aspects of perfectionism due to poor sleep

    From Cavity Electromechanics to Cavity Optomechanics

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    We present an overview of experimental work to embed high-Q mesoscopic mechanical oscillators in microwave and optical cavities. Based upon recent progress, the prospect for a broad field of "cavity quantum mechanics" is very real. These systems introduce mesoscopic mechanical oscillators as a new quantum resource and also inherently couple their motion to photons throughout the electromagnetic spectrum.Comment: 8 pages, 6 figures, ICAP proceedings submissio

    Surgical insertion of central venous catheters in low-birth-weight neonates

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    Aim: Neonatal central vascular access (CVA) represents a daily practice in  neonatal intensive care unit. Low birth weight (LBW) neonates pose a challenge to anesthetists who try the landmark technique to cannulate central veins. We reported our experience of open surgical cutdown (OSC) to insert catheters through right internal jugular vein (IJV) and assessed feasibility, operative time, durability of line, and postoperative complications of this technique.Methods: A total of 660 LBW neonates needed CVA and underwent OSC of right IJV because of medical and surgical indications. We reported operative time, whether anesthesia or sedation, whether in the theater or at the bedside, difficulties,  complications and duration of line, and causes of failure. Transverse neck incision was made 1 cm above the medial third of the clavicle, right IJV was identified,  venotomy was performed, and catheter was inserted.Results: A total of 660 LBW neonates had CVA in right IJV, ligation of vein occurred in the first 30 cases but later venotomy was repaired. Mean operative time was 11.3 min. No injury of the right carotid artery or vagus was reported. None had postoperative pneumothorax. Overall, 542 cases had lines until they were  discharged. A total of 43 cases needed redo. Thirty-five cases had line-associated infection and 40 lines were thrombosed.Conclusion: OSC of right IJV was feasible and had lower complication rates.Keywords: neonate, surgery, vascular acces
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