Ángela Patricia Dávila Gamboa, Julieth Ximena Guerrero Córdoba, Norma Viviana Moreno Montenegro
et al.
El infarto agudo de miocardio es considerado una de las primeras causas de mortalidad a nivel regional, nacional y mundial; los factores de riesgo se convierten en el agente causal de esta patología. Por ello, cuando un paciente enferma, requiere de un tratamiento quirúrgico, como la revascularización miocárdica, donde la atención y manejo se hace en la unidad de cuidados intensivos (UCI), con el fin de garantizar su supervivencia. Para lograr la recuperación exitosa del paciente, se debe contar con un equipo multidisciplinario entrenado. En este contexto, el profesional de enfermería se convierte en el componente necesario e indispensable, que debe conocer a fondo la patología y el tratamiento establecido para realizar con juicio clínico el cuidado de estos pacientes. El objetivo del estudio consistió en determinar el proceso de atención de enfermería en paciente críticamente enfermo en posoperatorio de revascularización miocárdica secundaria a infarto agudo de miocardio atendido en UCI. La metodología utilizada fue estudio de caso observacional y descriptivo, con aplicación del plan de cuidados de enfermería según la taxonomía NANDA-NIC-NOC (North American Nursing Diagnosis Association, Nursing Interventions Classification y Nursing Outcomes Classification). El caso de estudio se realizó con un paciente que ingresó y refirió «dolor de pecho intenso»; después de identificar cambios electrocardiográficos y resultados positivos en las pruebas troponinas, se realizó un cateterismo cardiaco, seguido de revascularización miocárdica. Gracias al apoyo del equipo multidisciplinario, el paciente presentó una evolución satisfactoria. Por lo tanto, el cuidado de enfermería en un paciente con esta patología debe ser personalizado, centrado en lograr su estabilidad hemodinámica y su confort, teniendo en cuenta la magnitud del procedimiento, su complejidad, vigilancia y monitorización clínica.
From the mid-sixties onwards, Ricardo Bofill's work began to be published in various foreign architectural magazines. From that moment on, his presence would be constant and would increase as the years went by. Aware of the active role of the media in the architect's work, Bofill made conscious use of them. It could be said that he was the first media architect as we know them today, a celebrity precursor of the star system of the nineties and early twentieth century. Within this framework, the article explores Bofill's critical fortune on the international scene. To this end, the study analyses the scope of his work in foreign periodicals, setting out the keys to explaining the interest his architecture aroused in the foreign context. It focuses on the period between the 1970s and the mid-1980s, when he carried out his most mediatic projects in France. These works, with a monumentalist character, have traditionally been framed within the postmodernist trend.
In this note, we show that the $p$-adic periods of motives introduced recently by Ancona and Frăţilă (``André periods'') reduce to the classically studied notion in the case of Mixed Tate motives. We also connect André periods with Coleman integration by observing that the Frobenius-fixed de Rham paths of Besser and Vologodsky come from motivic paths in characteristic $p$ (unconditionally in the mixed Tate setting, conditionally in general). We use this to realize special values of $p$-adic multiple polylogarithms as André periods in a concrete way.
Roberto Bramati, Matteo Dalla Riva, Paolo Luzzini
et al.
In this paper, we review the construction of periodic fundamental solutions and periodic layer potentials for various differential operators. Specifically, we focus on the Laplace equation, the Helmholtz equation, the Lamé system, and the heat equation. We then describe how these layer potentials can be applied to analyze domain perturbation problems. In particular, we present applications to the asymptotic behavior of quasi-periodic solutions for a Dirichlet problem for the Helmholtz equation in an unbounded domain with small periodic perforations. Additionally, we investigate the dependence of spatially periodic solutions of an initial value Dirichlet problem for the heat equation on regular perturbations of the base of a parabolic cylinder.
We discuss the universal nature of relaxation in isolated many-body quantum systems subjected to global and strong periodic driving. Our rigorous Floquet analysis shows that the energy of the system remains almost constant up to an exponentially long time in frequency for arbitrary initial states and that an effective Hamiltonian obtained by a truncation of the Floquet-Magnus expansion is a quasiconserved quantity in a long time scale. These two general properties lead to an intriguing classification on the initial stage of relaxation, one of which is similar to the prethermalization phenomenon in nearly integrable systems.
Recent works have demonstrated that the Floquet–Bloch bands of periodically-driven systems feature a richer topological structure than their non-driven counterparts. The additional structure in the driven case arises from the periodicity of quasienergy, the energy-like quantity that defines the spectrum of a periodically-driven system. Here we develop a new paradigm for the topological classification of Floquet–Bloch bands, based on the time-dependent spectrum of the driven system's evolution operator throughout one driving period. Specifically, we show that this spectrum may host topologically-protected degeneracies at intermediate times, which control the topology of the Floquet bands of the full driving cycle. This approach provides a natural framework for incorporating the role of symmetries, enabling a unified and complete classification of Floquet–Bloch bands and yielding new insight into the topological features that distinguish driven and non-driven systems.
The article, which based on materials from pre-revolutionary periodicals, describes in detail and systematically analyzes the mourning meeting in honor of the memory of actress Vera Komissarzhevskaya. This meeting was organized and held on the morning of February 13, 1910 by the founders of the Moscow Art Theater - V.I. Nemirovich-Danchenko and K.S. Stanislavsky. This memorial event, which took place in the foyer of the Moscow Art Theater, was named by V.I. Nemirovich-Danchenko "the first experience of a civil memorial service," during his opening speech. The event received such a definition, since no clergyman took part in it, due to a ban from the Moscow church authorities to serve a church memorial service for Komissarzhevskaya in the theater building in Kamergersky Lane. The article hypothesizes that the term "civil memorial service" (“grazhdanskaia panikhida”) was used for the first time at that time.
Funeral and memorial ceremonies without the participation of the clergy were sometimes held in Russia before that (during the revolutionary events of 1905). The meeting on February 13, 1910 at the Moscow Art Theater, being an important milestone in the evolution of the Russian civil funeral rite, stood apart in this row. The civil memorial ceremony for Komissarzhevskaya had no direct internal connection with the current political conflicts (within the framework of which the atheistic worldview was already openly opposed to the religious worldview). It rather reflected the discrepancy in the perception of the status of dramatic art and the personality of the dramatic actor-artist (as well as personal creativity in general) between the church consciousness typical of that time and the consciousness of the creative intelligentsia, within the limits of a single Christian paradigm. "The first experience of a civil memorial service" is considered in the article not as an attempt to redesign, but as an attempt to strengthen the existing memorial rite in the therapeutic aspect, adapting it to the mental characteristics of the artistic community.
In the present paper, as a generalization of the classical periodic rings, we explore those rings whose elements are additively generated by two (or more) periodic elements by calling them additively periodic. We prove that, in some major cases, additively periodic rings remain periodic too; this includes, for instance, algebraic algebras, group rings, and matrix rings over commutative rings. Moreover, we also obtain some independent results for the new class of rings; for example, the triangular matrix rings retain that property.