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Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors
Published 2025-01-01Subjects: Get full text
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Alejandro Morales y la fuga mística del caos
Published 2016-01-01Subjects: “…literatura chicana…”
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Vulnerabilidad y riesgo por inundación en San Cristóbal de las Casas, Chiapas
Published 2008-01-01Get full text
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Enantioselective Synthesis of Antiepileptic Drug: (-)-Levetiracetam—Synthetic Applications of the Versatile New Chiral N-Sulfinimine
Published 2013-01-01“…We report an asymmetric synthesis of (-)-Levetiracetam (1) in six steps starting from versatile new chiral N-sulfinimine (3). The key step, stereoselective 1,2-addition of ethylmagnesium bromide (EtMgBr) to chiral N-sulfinimine derived from (R)-glyceraldehyde acetonide and (S)-t-BSA, gave the corresponding sulfonamide (2) in high diastereoselectivity. …”
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Niñez y crianza en una zona rural tseltal en Altos de Chiapas
Published 2018-01-01“…Estudio de enfoque cualitativo de corte fenomenológico sobre las características de las prácticas y estilos de crianza de madres con niños y niñas de 1 a 6 años de edad, en una zona de Oxchuc, Chiapas, México, hablantes de la lengua tseltal. Seleccionamos 20 mujeres de la comunidad y les hicimos entrevistas semiestructuradas y observación participante. …”
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Antibacterial Activity of Traditional Medicinal Plants Used for the Treatment of Acute Diarrheal Diseases in Chiapas, Mexico
Published 2025-01-01“…This study evaluated the antibacterial activity, minimum inhibitory concentration (MIC), and toxicity of ethanolic (EE) and aqueous (AE) extracts from five Mexican medicinal plants traditionally used in Chiapas for treating acute diarrheal diseases (ADD). …”
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Nested chirality and multimode transfer around exceptional points driven by external forces in electric circuits
Published 2025-02-01“…Due to the complex non-trivial topology of Riemann surfaces associated with non-Hermitian Hamiltonians, the dynamical encirclement or proximity of EPs in parameter space has been shown to lead to some novel physical phenomena, such as the chiral modes modulations. However, in the previous studies on dynamically encircling EPs, tuning the chirality for applications requires periodic modulation of the system parameters. …”
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Dynamic critical behavior of the chiral phase transition from the real-time functional renormalization group
Published 2025-01-01“…Abstract The collective dynamics around the second-order O(4) chiral phase transition in QCD with two massless quark flavors can be understood by appealing to universality. …”
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Multifunctional Carbon Foam with Nanoscale Chiral Magnetic Heterostructures for Broadband Microwave Absorption in Low Frequency
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The Effect of Cirata Reservoir Sediment on Early Developmental Stage of Common Carp (Cyprinus carpio) Embryo
Published 2009-07-01“…Sample of sediment was collected from Cirata reservoir using Eikmand dredge at a depth of 80 m. …”
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Participación campesina en el mercado global de café. cafeticultores organizados en Chiapas
Published 2015-01-01“…En este ensayo nos proponemos analizar el impacto socioeconómico que tiene esta estrategia productiva en las familias campesinas que se integran en organiza - ciones, del estado de Chiapas. Partimos de reconocer a los cafeticultores como parte del campesinado actual y las constantes problemáticas que enfrentan para mantenerse en un sistema excluyente.…”
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Retracted: Broadband Design of Midinfrared Chiral Metamaterials Based on the Indium Tin Oxide Conical Helix
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COFcap2, a recyclable tandem catalysis reactor for nitrogen fixation and conversion to chiral amines
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Direct observation of chiral edge current at zero magnetic field in a magnetic topological insulator
Published 2025-01-01“…Abstract The chiral edge current is the boundary manifestation of the Chern number of a quantum anomalous Hall (QAH) insulator. …”
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Dos escritores Chicanos sobre Ciudad Juárez
Published 2013-01-01Subjects: “…literatura chicana…”
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Evaluación del desarrollo de la comunidad de Yajalón, Chiapas, desde una perspectiva sustentable
Published 2024-01-01Get full text
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