Reply to a Commentary "Asking photons where they have been without telling them what to say"

Interesting objections to conclusions of our experiment with nested interferometers raised by Salih in a recent Commentary are analysed and refuted.Comment: Published version (Frontiers in Physics) to revised version of the Commentar

Aplikasi Market Expert Advisor Pada Currency Market

Aktivitas trading membutuhkan tingkat konsistensi pengambilan keputusan yang tinggi dari seorang trader. Namun dalam hal trading, sering kali trader dipengaruhi oleh berbagai macam faktor psikologis, seperti rasa takut, rasa terlalu percaya diri, tidak sabar, emosi, dan sebagainya. Oleh karena itu dibutuhkan suatu aplikasi yang dapat membantu trader untuk mengambil keputusan secara konsiten dalam aktivitas trading tanpa dipengaruhi oleh faktor-faktor psikologis. Aplikasi ini akan dapat memberikan saran kapan untuk melakukan posisi membeli ataupun menjual valas. Selain itu, aplikasi dapat melakukan aktivitas trading secara otomatis sehingga dapat meringankan beban pekerjaan dari seorang trader. Aplikasi ini diuji dengan cara live testing dan back testing terhadap pasar, dan terbukti bahwa telah mampu menghasilkan keuntungan bagi trader. Metode yang digunakan adalah metode Harmonic Pattern, yang mana didalamnya dapat meng-generate beberapa macam pattern seperti Butterfly, BAMM, Gartley dan sebagainya. Dari pengujian didapat bukti bahwa semua pattern yang dihasilkan memiliki tingkat keberhasilan lebih dari 50%, dimana yang tertinggi adalah pattern Butterfly sebesar 62.33%. Sementara ini untuk pengaturan pada Market Expert Advisor, sistem Risk and Reward yang dikombinasi dengan Trailing Stop akan menghasilkan total profit paling banyak. Namun sistem Martingale akan menghasilkan bentuk grafik yang relatif stabil dan terus menerus meningkatkan modal

Practical Quantum Bit Commitment Protocol

A quantum protocol for bit commitment the security of which is based on technological limitations on nondemolition measurements and long-term quantum memory is presented.Comment: Quantum Inf. Process. (2011

Temporary Trans-gastric Stent Deployment Over a 20 French Gastrostomy for Single-Stage Endoscopic Retrograde Cholangiopancreatography After Gastric Bypass

Introduction: Treatment of pancreato-biliary disorders after gastric bypass is challenging due to altered anatomy. Several techniques have been proposed to overcome this condition; however, none has emerged as the gold standard treatment. Furthermore, a decision-making algorithm evaluating when and why apply one technique over another is still lacking. Objectives: To describe a novel trans-gastric approach to allow endoscopic retrograde cholangiopancreatography (ERCP) in Roux-en-Y gastric bypass (RYGB) anatomy soon after prior laparoscopic cholecystectomy (LC) and to propose a decision-making algorithm for selection of the most suitable technique according a tailored approach. Setting: Private hospital. Methods: Between January and March 2020, patients with Roux-en-Y gastric bypass anatomy referred to our tertiary center to undergo ERCP after recent laparoscopic cholecystectomy were retrospectively evaluated. A 20 french (Fr) gastrostomy was performed during cholecystectomy. A single-stage ERCP was carried out by means of temporary trans-gastric stent deployment over a 20 Fr gastrostomy. Results: A total of 5 patients (mean age 41; mean body mass index 48.3) were enrolled. ERCP was performed after an average of 2 days from surgery. Technical and clinical success was achieved in 100%. No adverse events occurred. Spontaneous closure of the gastrostomy after its bedside removal was observed in all cases. Conclusions: Our approach allows to perform a single-stage ERCP in RYGB patients, early after LC, with no need of any other re-interventions. Any surgeon facing unexpected biliary disorders, during LC, can easily perform a 20 Fr gastrostomy thus allowing the patient to undergo early ERCP without any delay

Inelastic light scattering and the excited states of many-electron quantum dots

A consistent calculation of resonant inelastic (Raman) scattering amplitudes for relatively large quantum dots, which takes account of valence-band mixing, discrete character of the spectrum in intermediate and final states, and interference effects, is presented. Raman peaks in charge and spin channels are compared with multipole strengths and with the density of energy levels in final states. A qualitative comparison with the available experimental results is given.Comment: 5 pages, accepted in J. Phys.: Condens. Matte

A DRAMATURGIA NO TEMPO DO "PÓS-DRAMÁTICO"

There’s something deeply transforming the theater. Hans-Thies Lehmann had the merit of nominate this phenomenon by proposing the notion of "post-dramatic theater" - even though this expression is arguable to the extent that these new forms do not necessarily nullify the drama. Twentieth-century theater was based on the paradigm of "art in two moments" (Henri Gouhier). The author writes a play, and then the director picks it up and assembles it. This is Artaud's utopia, that of a "unique creator" that seems to take shape in this early 21st century. Dramaturgy is inevitably affected by this evolution: obviously, in its first sense, an art of writing a play, when writing and staging occur in the same movement; but also in its modern sense, when the term applies to the passage to a scene of a pre-existing room. Between the transformation of a dramatic work into a material for the scene, regardless of its dramatic structure, and the imposition of a rigid "reading grid", there should still be room for open and sensitive dramaturgy, creating the conditions for a experience for the public.Keywords Dramaturgy. Dramaticity. Dramatic writing. "Post Dramatic" Theater. Performance. Experience.Algo está transformando profundamente o teatro. Hans-Thies Lehmann teve o mérito de nomear esse fenômeno, propondo a noção de "teatro pós-dramático" – mesmo que essa expressão seja discutível na medida em que essas novas formas não necessariamente anulam o drama. O teatro do século XX se baseou no paradigma de uma "arte em dois momentos" (Henri Gouhier). O autor escreve uma peça, depois o diretor a pega e a monta. Essa é a utopia de Artaud, a de um "criador único", que parece tomar forma nesse início do século XXI. A dramaturgia se encontra inevitavelmente afetada por essa evolução: obviamente, em seu primeiro sentido, a arte de escrever uma peça, quando a escrita e a encenação ocorrem no mesmo movimento; mas também em seu sentido moderno, quando o termo se aplica à passagem para a cena de uma sala pre-existente. Entre a transformação de uma obra dramática em um material para a cena, sem levar em conta sua estrutura dramática, e a imposição de uma rígida "grade de leitura", ainda deveria haver espaço para uma dramaturgia aberta e sensível, criando as condições de uma experiência para o público.Algo está transformando profundamente o teatro. Hans-Thies Lehmann teve o mérito de nomear esse fenômeno, propondo a noção de "teatro pós-dramático" – mesmo que essa expressão seja discutível na medida em que essas novas formas não necessariamente anulam o drama. O teatro do século XX se baseou no paradigma de uma "arte em dois momentos" (Henri Gouhier). O autor escreve uma peça, depois o diretor a pega e a monta. Essa é a utopia de Artaud, a de um "criador único", que parece tomar forma nesse início do século XXI. A dramaturgia se encontra inevitavelmente afetada por essa evolução: obviamente, em seu primeiro sentido, a arte de escrever uma peça, quando a escrita e a encenação ocorrem no mesmo movimento; mas também em seu sentido moderno, quando o termo se aplica à passagem para a cena de uma sala pre-existente. Entre a transformação de uma obra dramática em um material para a cena, sem levar em conta sua estrutura dramática, e a imposição de uma rígida "grade de leitura", ainda deveria haver espaço para uma dramaturgia aberta e sensível, criando as condições de uma experiência para o público. Palavras-chaveDramaturgia. Dramaticidade. Escrita dramática. Teatro “Pós-dramático”. Performance. Experiência

First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe

We perform a first principles calculation of the anomalous Hall effect in ferromagnetic bcc Fe. Our theory identifies an intrinsic contribution to the anomalous Hall conductivity and relates it to the k-space Berry phase of occupied Bloch states. The theory is able to account for both dc and magneto-optical Hall conductivities with no adjustable parameters.Comment: 4 pages, 6 figures, author list correcte

Raman scattering in a two-dimensional electron gas: Boltzmann equation approach

The inelastic light scattering in a 2-d electron gas is studied theoretically using the Boltzmann equation techniques. Electron-hole excitations produce the Raman spectrum essentially different from the one predicted for the 3-d case. In the clean limit it has the form of a strong non-symmetric resonance due to the square root singularity at the electron-hole frequency $\omega = vk$ while in the opposite dirty limit the usual Lorentzian shape of the cross section is reestablished. The effects of electromagnetic field are considered self-consistently and the contribution from collective plasmon modes is found. It is shown that unlike 3-d metals where plasmon excitations are unobservable (because of very large required transfered frequencies), the two-dimensional electron system gives rise to a low-frequency ($\omega \propto k^{1/2}$) plasmon peak. A measurement of the width of this peak can provide data on the magnitude of the electron scattering rate.Comment: 4 pages, 3 figures. to appear in Phys. Rev. B 59 (1999

Semiquantitative theory of electronic Raman scattering from medium-size quantum dots

A consistent semiquantitative theoretical analysis of electronic Raman scattering from many-electron quantum dots under resonance excitation conditions has been performed. The theory is based on random-phase-approximation-like wave functions, with the Coulomb interactions treated exactly, and hole valence-band mixing accounted for within the Kohn-Luttinger Hamiltonian framework. The widths of intermediate and final states in the scattering process, although treated phenomenologically, play a significant role in the calculations, particularly for well above band gap excitation. The calculated polarized and unpolarized Raman spectra reveal a great complexity of features and details when the incident light energy is swept from below, through, and above the quantum dot band gap. Incoming and outgoing resonances dramatically modify the Raman intensities of the single particle, charge density, and spin density excitations. The theoretical results are presented in detail and discussed with regard to experimental observations.Comment: Submitted to Phys. Rev.

Impact of free on-site vaccine and/or healthcare workers training on hepatitis B vaccination acceptability in high-risk subjects: a pre-post cluster randomized study

AbstractDespite recommendations for adults at high-risk of hepatitis B virus (HBV) infection, HBV vaccine uptake remains low in this population. A pre-post randomized cluster study was conducted to evaluate the impact of on-site free HBV vaccine availability and/or healthcare worker training on HBV vaccination acceptability in high-risk adults consulting in 12 free and anonymous HIV and hepatitis B/C testing centres (FATC). The FATC were randomly allocated into three groups receiving a different intervention: training on HBV epidemiology, risk factors and vaccination (Group A), free vaccination in the FATC (Group B), both interventions (Group C). The main outcomes were the increase in HBV vaccination acceptability (receipt of at least one dose of vaccine) and vaccine coverage (receipt of at least two doses of vaccine) after intervention. Respectively, 872 and 809 HBV-seronegative adults at high-risk for HBV infection were included in the pre- and post-intervention assessments. HBV vaccination acceptability increased from 14.0% to 75.6% (p <0.001) in Group B and from 17.1% to 85.8% (p <0.001) in Group C and HBV vaccine coverage increased from 9.4% to 48.8% (p <0.001) in Group B and from 11.2% to 41.0% (p <0.001) in Group C. The association of training and free on-site vaccine availability was more effective than free on-site vaccine availability alone to increase vaccination acceptability (ratio 1.14; from 1.02 to 1.26; p 0.017). No effect of training alone was observed. These results support the policy of making HBV vaccine available in health structures attended by high-risk individuals. Updating healthcare workers’ knowledge on HBV virus and its prevention brings an additional benefit to vaccination acceptability