71 research outputs found

    Configuración de Proyectos: Comunicación Interna y Comunicación Externa para Código Soluciones Integrales.

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    La comunicación es dicho medio por el cual los humanos así como los animales y todos los seres vivos, buscan formar un punto de intercambio de ideas, pensamientos y acciones. Cada especie utiliza un método distinto para generar este intercambio. Sin embargo, al final, todos intentan conseguir ese punto en común por el cual utilizaron como herramienta la comunicación. No obstante, tomando en cuenta esta idea teórica tan simple es que pueden salir varios temas de interés dentro de lo que representa comunicarse. Por ahora, enfocaremos nuestra atención a todas aquellas áreas relacionadas con el comportamiento humano y sus métodos de intercambio comunicacional dentro del área empresarial. Entre estos temas están definiciones puntuales y explicaciones de la comunicación organizacional, la identidad, reputación, imagen, comunicación interna y comunicación global. Mediante las mismas, es que las compañías fomentan el intercambio dentro y fuera con sus públicos internos así como stakeholders. Mediante este trabajo, se han podido poner en escena las definiciones mencionadas anteriormente. Se ha desarrollado en la vida real lo que es la verdadera comunicación interna y externa de las empresas.Communication is that cannel which all living beings search for in order to exchange ideas, thoughts and actions. Every specie utilizes a different method to generate this exchange. Nevertheless, at the end, every one is seeking that point in common, for which they used communication as their main tool. However, taking in account this simple idea of “give-and-take” is that other important themes can be derived. As for now, we will direct our attention in all of those areas related to human behavior and his methods of communication inside organizations. To highlight the important themes, we will define key words such as communication, organizational communication, identity, reputation, image, internal communication and global communication. Through the use of those words applied in real actions is that companies manage to generate an exchange with their inner and outer publics such as stakeholders. This work, exemplifies the application of those definitions and processes in a real life basis. The real application of internal and external communication

    Theoretical study of the electronic spectrum of p-benzoquinone

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    The electronic excited states of p-benzoquinone have been studied using multiconfigurational second-order perturbation theory (CASPT2) and extended atomic natural orbital (ANO) basis sets. The calculation of the singlet–singlet and singlet–triplet transition energies comprises 19 valence singlet excited states, 4 valence triplet states, and the singlet 3s,3p, and 3d members of the Rydberg series converging to the first four ionization limits. The computed vertical excitation energies are found to be in agreement with the available experimental data. Conclusive assignments to both valence and Rydberg states have been performed. The main features of the electronic spectrum correspond to the ππ∗ 1 1Ag→1 1B1u and ππ∗ 1 1Ag→3 1B1u transitions, computed to be at 5.15 and 7.08 eV, respectively. Assignments of the observed low-energy Rydberg bands have been proposed: An n→3p transition for the sharp absorption located at ca. 7.4 eV and two n→3d and π→3s transitions for the broad band observed at ca. 7.8 eV. The lowest triplet state is computed to be an nπ∗ 3B1g state, in agreement with the experimental [email protected] ; [email protected] ; [email protected]

    A combined theoretical and experimental determination of the electronic spectrum of acetone

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    A combined ab initio and experimental investigation has been performed of the main features of the electronic spectrum of acetone. Vertical transition energies have been calculated from the ground to the ny→π∗, π→π∗, σ→π∗, and the n=3 Rydberg states. In addition, the 1A1 energy surfaces have been studied as functions of the CO bond length. The 1A1 3p and 3d states were found to be heavily perturbed by the π→π∗ state. Resonant multiphoton ionization and polarization‐selected photoacoustic spectra of acetone have been measured and observed transitions were assigned on internal criteria. The calculated vertical transition energies to the ny→π∗ and all Rydberg states were found to be in agreement with experiment. This includes the 3s‐, all three 3p‐, and the A1, B1, and B2 3d‐Rydberg states. By contrast, there is little agreement between the calculated and experimental relative intensities of the A1 and B2 3d‐Rydberg transitions. In addition, anomalously intense high vibrational overtone bands of one of the 3p‐Rydberg transitions have been observed. These results confirm the strong perturbation of the 3p‐ and 3d‐Rydberg states by the π→π∗ state found in the theoretical calculation and support the calculated position of this unobserved [email protected]

    Theoretical study of the electronic spectrum of magnesium-porphyrin

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    Multiconfigurational self-consistent field (SCF) and second order perturbation methods have been used to study the electronic spectrum of magnesium-porphyrin (MgP). An extended ANO-type basis set including polarization functions on all heavy atoms has been used. Four allowed singlet states of E1u symmetry have been computed and in addition a number of forbidden transitions and a few triplet states. The results lead to a consistent interpretation of the electronic spectrum, where the Q band contains one transition, the B band two, and the N band one. The computed transition energies are consistently between 0.1 and 0.5 too low compared to the measured band maxima. The source of the discrepancy is the approximate treatment of dynamic correlation (second order perturbation theory), limitations in the basis set and the fact that all measurements have been made on substituted magnesium [email protected] ; [email protected]

    Carpooling systems for commuting among teachers: an expert panel analysis of their barriers and incentives

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    Sustainable mobility is a current challenge in our society. Research shows that carpooling systems are potential solutions that could mitigate environmental pollution and urban congestion and provide cost savings for their users. Despite their potential benefits, the levels of carpooling practices among some occupations could be improved. Teachers are suitable for carpooling experiences due to their specific working conditions (e.g., timetables, destinations changes, path matches); however, there is no research solely focused on teachers. Thus, the current research aimed to analyze the barriers and incentives for teachers using carpooling systems for commuting. A panel member was selected following the staticized group technique. Panelists were surveyed to evaluate the advantages and disadvantages of carpooling. Results showed that fuel savings were considered by the expert panel as the most important incentive for carpooling. For short distances, carpooling was not considered the best commuting option. Additionally, the increase in travel time and loss of personal independence were identified as relevant barriers. Based on the opinions of experts, it can be concluded that carpooling barriers outweigh the incentives for the commuting of teachers. To promote carpooling practices, institutional mobility plans with advantages for carpoolers could improve the teachers’ perceptions about carpooling. Future carpooling strategies should consider these results to promote incentives and address the identified barriers.info:eu-repo/semantics/publishedVersio

    Excited states of the water molecule : Analysis of the valence and Rydberg character

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    The excited states of the water molecule have been analyzed by using the extended quantum-chemical multistate CASPT2 method, namely, MS-CASPT2, in conjunction with large one-electron basis sets of atomic natural orbital type. The study includes 13 singlet and triplet excited states, both valence and 3s-, 3p-, and 3d-members of the Rydberg series converging to the lowest ionization potential and the 3s- and 3p-Rydberg members converging to the second low-lying state of the cation, 1 math. The research has been focused on the analysis of the valence or Rydberg character of the low-lying states. The computation of the 1 math state of water at different geometries indicates that it has a predominant 3s-Rydberg character at the equilibrium geometry of the molecule but it becomes progressively a valence state described mainly by the one-electron 1b1→4a1 promotion, as expected from a textbook of general chemistry, upon elongation of the O–H bonds. The described valence-Rydberg mixing is established to be originated by a molecular orbital (MO) Rydbergization process, as suggested earlier by R. S. Mulliken [Acc. Chem. Res. 9, 7 (1976)] . The same phenomenon occurs also for the 1 math state whereas a more complex behavior has been determined for the 2 math state, where both MO Rydbergization and configurational mixing take place. Similar conclusions have been obtained for the triplet states of the [email protected] [email protected] [email protected]

    A theoretical study of the electronic spectrum of bithiophene

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    The electronic spectrum of bithiophene in the energy range up to 6.0 eV has been studied using multiconfigurational second order perturbation theory (CASPT2) and a basis set of ANO type, with split valence quality and including polarization functions on all heavy atoms. Calculations were performed at a planar (trans) and twisted geometry. The calculated ordering of the excited singlet states is 1Bu, 1Bu, 1Ag, 1Ag, and 1Bu with 0–0 transition energies: 3.88, 4.15, 4.40, 4.71, and 5.53 eV, respectively. The first Rydberg transition (3s) has been found at 5.27 eV. The results have been used in aiding the interpretation of the experimental spectra, and in cases where a direct comparison is possible there is agreement between theory and [email protected] ; [email protected] ; [email protected]

    Towards an accurate molecular orbital theory for excited states : Ethene, butadiene, and hexatriene

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    A newly proposed quantum chemical approach for ab initio calculations of electronic spectra of molecular systems is applied to the molecules ethene, trans‐1,3‐butadiene, and trans‐trans‐1,3,5‐hexatriene. The method has the aim of being accurate to better than 0.5 eV for excitation energies and is expected to provide structural and physical data for the excited states with good reliability. The approach is based on the complete active space (CAS) SCF method, which gives a proper description of the major features in the electronic structure of the excited state, independent of its complexity, accounts for all near degeneracy effects, and includes full orbital relaxation. Remaining dynamic electron correlation effects are in a subsequent step added using second order perturbation theory with the CASSCF wave function as the reference state. The approach is here tested in a calculation of the valence and Rydberg excited singlet and triplet states of the title molecules, using extended atomic natural orbital (ANO) basis sets. The ethene calculations comprised the two valence states plus all singlet and triplet Rydberg states of 3s, 3p, and 3d character, with errors in computed excitation energies smaller than 0.13 eV in all cases except the V state, for which the vertical excitation energy was about 0.4 eV too large. The two lowest triplet states and nine singlet states were studied in butadiene. The largest error (0.37 eV) was found for the 2 1Bu state. The two lowest triplet and seven lowest singlet states in hexatriene had excitation energies in error with less than 0.17 [email protected] ; [email protected] ; [email protected]

    The chemical bonds in CuH, Cu2, NiH, and Ni2 studied with multiconfigurational second order perturbation theory

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    The performance of multiconfigurational second order perturbation theory has been analyzed for the description of the bonding in CuH, Cu2, NiH, and Ni2. Large basis sets based on atomic natural orbitals (ANOS) were employed. The effects of enlarging the active space and including the core‐valence correlation contributions have also been analyzed. Spectroscopic constants have been computed for the corresponding ground state. The Ni2 molecule has been found to have a 0+g ground state with a computed dissociation energy of 2.10 eV, exp. 2.09 eV, and a bond distance of 2.23 Å. The dipole moments of NiH and CuH are computed to be 2.34 (exp. 2.4±0.1) and 2.66 D, [email protected] ; [email protected] ; [email protected]

    Theoretical characterization of the lowest-energy absorption band of pyrrole

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    The lowest-energy band of the electronic spectrum of pyrrole has been studied with vibrational resolution by using multiconfigurational second-order perturbation theory (CASPT2) and its multistate extension (MS–CASPT2) in conjunction with large atomic natural orbital-type basis sets including Rydberg functions. The obtained results provide a consistent picture of the recorded spectrum in the energy region 5.5–6.5 eV and confirm that the bulk of the intensity of the band arises from a ππ∗ intravalence transition, in contradiction to recent theoretical claims. Computed band origins for the 3s,3p Rydberg electronic transitions are in agreement with the available experimental data, although new assignments are suggested. As illustrated in the paper, the proper treatment of the valence–Rydberg mixing is particularly challenging for ab initio methodologies and can be seen as the main source of deviation among the recent theoretical results as regards the position of the low-lying valence excited states of [email protected] ; [email protected]
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