Results 41 to 50 of about 6,082 (216)
Dual liquid crystalline/gel behavior with AIE effect promoted by self-assembly of pyrazole dendrons [PDF]
, 2022 This work describes the rich self-assembly behavior obtained by grafting a pyrazole-derived platform at the focal point of poly(benzyl ether) dendrons.
Iguarbe, Verónica +5 more
core +1 more source
Advanced Materials, EarlyView.Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano +18 more
wiley +1 more source
π‐Enlargement in Porphyrin Macrocycles at Interfaces
Angewandte Chemie, EarlyView.On‐surface synthesis of a 20‐π free‐base expanded porphyrin, by depositing onto a hot Ag(111) substrate an 18‐π free‐base precursor equipped with ‐CF3 functional groups ABSTRACT Porphyrins are essential heteroatomic macrocycles, fundamental to both biological systems and advanced technology.
Ana Barragán +11 more
wiley +2 more sources
Colonialidad del poder: una invención jurídica de la conquista
Intersticios, 2016 A través de la noción de self-government, este artículo se remonta a los orígenes de la colonialidad del poder. Esta colonialidad del poder se inicia con la noción de tutela colonial de los pueblos indoamericanos elaborada por algunos juristas españoles ...
Dardo Scavino
doaj
Self‐Cooling Molecular Spin Qudits
Advanced Materials, EarlyView.A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios +12 more
wiley +1 more source
Nanographene‐Based van der Waals Organic Framework With Permanent Porosity
Angewandte Chemie, EarlyView.Unlocking record‐breaking porosity in a supramolecular organic framework (SOF). Through the strategic design of a C3‐symmetric nanographene, a robust supramolecular framework is achieved via exclusively weak van der Waals forces. This metal‐free scaffold reaches a benchmark BET surface area of 1108 m2 g−1 –the highest to date for this class–combining ...
Arturo Oró +5 more
wiley +2 more sources
Scale Urban Agriculture in Havana and the Reproduction of the ‘New Man’ in Contemporary Cuba
European Review of Latin American and Caribbean Studies, 2003 Drawing on ethnographic data collected in the city of Havana, from 1999 to 2001, this paper interrogates the purported rise in ‘individualistic’ and ‘capitalistic’ practices in post-Soviet Bloc Cuba.
Adriana Premat
doaj +1 more source
Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects
Advanced Materials, EarlyView.Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley +1 more source
Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes
Advanced Materials, EarlyView.Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro +13 more
wiley +1 more source
Análisis del proceso de descentralización en Bogotá: un enfoque desde la teoría secuencial
, 2018 151 páginasThis work makes an extrapolation of the sequential theory of decentralization of Tulia Falleti to the decentralization process of Bogotá, which had been mainly applied to the study of cases of decentralization in countries of Latín American ...
Morales Huetio, José Ignacio +2 more
core +1 more source