3,898 research outputs found

    Di-μ-nitrito-κ3 O:O,O′;κ3 O,O′:O-bis­{[2,6-bis­(pyrazol-1-yl-κN 2)pyridine-κN](nitrito-κ2 O,O′)cadmium(II)}

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    In the title centrosymmetric binuclear complex, [Cd2(NO2)4(C11H9N5)2], the unique CdII ion is in a distorted dodeca­hedral CdN3O5 coordination environment. The two inversion-related CdII ions are separated by 3.9920 (6) Å and are bridged by two O atoms from two nitrite ligands. There are two types of π–π stacking inter­actions involving symmetry-related pyrazole rings, with centroid–centroid distances of 3.445 (2) and 3.431 (2) Å

    Geometrically Local Quantum and Classical Codes from Subdivision

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    A geometrically local quantum code is an error correcting code situated within RD\mathbb{R}^D, where the checks only act on qubits within a fixed spatial distance. The main question is: What is the optimal dimension and distance for a geometrically local code? This question was recently answered by Portnoy which constructed codes with optimal dimension and distance up to polylogs. This paper extends Portnoy's work by constructing a code which additionally has an optimal energy barrier up to polylogs. The key ingredient is a simpler code construction obtained by subdividing the balanced product codes. We also discuss applications to classical codes

    An operator extension of weak monotonicity

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    Let S(ρ)S(\rho) be the von Neumann entropy of a density matrix ρ\rho. Weak monotonicity asserts that S(ρAB)S(ρA)+S(ρBC)S(ρC)0S(\rho_{AB}) - S(\rho_A) + S(\rho_{BC}) - S(\rho_C)\geq 0 for any tripartite density matrix ρABC\rho_{ABC}, a fact that is equivalent to the strong subadditivity of entropy. We prove an operator inequality, which, upon taking an expectation value with respect to the state ρABC\rho_{ABC}, reduces to the weak monotonicity inequality. Generalizations of this inequality to the one involving two independent density matrices, as well as their R\'enyi-generalizations, are also presented

    Glucagon-like peptide-1 receptor agonist versus basal insulin in type-2 diabetic patients: An efficacy and safety analysis

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    Purpose: To compare the effectiveness of glucagon-like peptide 1 receptor agonist with that of basal insulin in type 2 diabetes patients. Methods: Type-2 diabetes patients who were insensitive to metformin were treated with glucagon-like peptide 1 receptor agonist (GP cohort, n = 115) or basal insulin (BI cohort, n = 152) with metformin. Hemoglobin A1c (HbA1c) level and body weight were determined, and adverse effects also recorded. Results: After 16 weeks of treatment, glucagon-like peptide 1 receptor agonist did not significantly reduce HbA1c levels (7.45 ± 2.11 % vs. 7.01 ± 2.01, p = 0.107). In contrast, basal insulin significantly reduced the levels of HbA1c (7.91 ± 2.98 % vs. 7.13 ± 2.22 %, p = 0.010, q = 3.852). Glucagon-likepeptide 1 receptor agonist reduced the body weight of patients (65.25 ± 7.55 kg vs. 62.16 ± 6.15 kg, p = 0.0008, q = 5.121), unlike basal insulin (63.71 ± 6.15 vs. 62.65 ± 6.76 kg, p = 0.154). Conclusion: Glucagon-like peptide 1 receptor agonist and basal insulin + metformin produce identical effectiveness in the treatment of type-2 diabetic patients. Keywords: Glucagon-like peptide-1 receptor agonist, Glycemic control, Insulin, Metformin, Type-2 diabete
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