803 research outputs found
Re Citro [1991] Ch 142, Court of Appeal
No full textEssential Cases: Land Law provides a bridge between course textbooks and key case judgments. This case document summarizes the facts and decision in Re Citro [1991] Ch 142, Court of Appeal. The document also includes supporting commentary from author Aruna Nair.</p
CITRO, Silvia; ASCHIERI, Patricia (Coord.) Cuerpos en movimiento: antropología de y desde las danzas
No full textCuerpos en movimiento no puede dejar de leerse en continuidad con Cuerpos significantes (Citro, 2009) y Cuerpos plurales (Citro, 2011), dos libros que lo preceden y que fundan, junto a este, un generoso acervo de discusiones, referencias, contribuciones teóricas y propuestas metodológicas que reflexionan sobre y desde el cuerpo. Cuerpos en movimiento nos propone, abrirnos al universo del movimiento corporal y la danza desde una aproximación intercultural, partiendo de los aportes hechos por l..
Simulation of an entanglement-based quantum key distribution protocol
No full textSince the 80 s when it was first proposed, Quantum Key Distribution (QKD) elicited great interest in the field of cryptography as a unique procedure for key generation that could in principle guarantee unconditionally secure communication “by the laws of Physics”. In the last fifteen years commercial solutions have started appearing on the market, showing that practical implementations of the protocol were not only possible but also competitive in terms of security and achievable secret-key rate. In this work we describe a simulation of the historical QKD protocol E91 on the IBM Quantum platform, making use of the qubit formalism to represent the quantum states received by two communicating nodes. Having implemented also the post-processing steps for the error correction and the privacy amplification, this model can represent a simple stand-alone tool to study the performance not only of one-to-one communication but of more complex systems that rely on QKD for security, one above all QKD networks
La Prima Addizione “Organocatalizzata” di 2-Trimetilsililossifurano ad Aldeidi: Rapido Accesso a g-Butenolidi Variamente Sostituiti
No full textDissipative dynamics in quantum key distribution
No full textUsing the IBM Quantum Experience platform, we simulate the dissipative dynamics in the BB84 quantum key distribution protocol. We employ the Jaynes-Cummings model to simulate the attenuation in an optical fiber during the information transmission process and calculate the quantum bit error rate (QBER). The results of QBER as a function of the distance give a satisfactory agreement with experimental data when the system is in a Markovian regime
Oxyfunctionalization of CalixareneQuinone Rings
No full textThe epoxidation of quinone rings of calixquinones represents a valid route for the introduction of oxygenated functionalities into the de-tert-butylated calixarene walls originating cis-diepoxy-p-dione moieties. Carbonyl reduction of these systems leads to hybrid calixarenes containing dianhydroinositol moieties (calixinositols) belonging to the calixcyclitols family. The regio- and stereochemistry of these derivatives was determined by 2D NMR studies, in conjunction with MM3 calculations and X-ray crystallography
Polarization angle dependence of the breathing mode in confined one-dimensional dipolar bosons
No full textProbing the radial collective oscillation of a trapped quantum system is an accurate experimental tool to investigate interactions and dimensionality effects. We consider a fully polarized quasi-one-dimensional dipolar quantum gas of bosonic dysprosium atoms in a parabolic trap at zero temperature. We model the dipolar gas with an effective quasi-one-dimensional Hamiltonian in the single-mode approximation and derive the equation of state using a variational approximation based on the Lieb-Liniger gas Bethe ansatz wave function or perturbation theory. We calculate the breathing mode frequencies while varying polarization angles by a sum-rule approach and find they are in good agreement with recent experimental findings
Pig Xenotransplantation in Beta Cell Replacement: Addressing Challenges and Harnessing Potential for Type 1 Diabetes Therapy
No full textThis opinion paper evaluates the potential of porcine islets as a promising alternative in beta cell replacement therapy for Type 1 Diabetes (T1D), juxtaposed with the current limitations of human donor islets. It analyzes the compatibility of pig islets with human glucose metabolism, their prospects as a limitless and high-quality source of beta cells, and the unique immunogenic challenges they present in xenotransplantation. Additionally, the paper discusses the regulatory and ethical considerations pertinent to the use of porcine islets. By synthesizing current research and expert perspectives, the paper highlights both the opportunities and significant barriers that need addressing to advance pig islets as a viable therapeutic option. The findings advocate for a balanced and forward-looking approach to the integration of pig islets in T1D treatment, underscoring the need for continued research and dialogue in this evolving field
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