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Entrevista a la Doctora Stella Maris Ranuncolo
No full textEntrevista a la Doctora Stella Maris Ranuncolo sobre Eugenia Sacerdote de LustigFil: No especifica. No especifíca;ColorPodcast producido por la Dirección de Relaciones Institucionales del CONICET en el marco del proyecto “Notables de la Ciencia”.Unidad documental simpl
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Joe Benson with Roger Maris of the New York Yankees (photograph)
No full textJoe Benson with Roger Maris of the New York Yankees
Prediction of soft X-ray photo-electron/absorption spectra by ab initio calculations
No full textWe present two different theoretical approaches used to predict the photoelectron and the photoabsorption and discuss their accuracy by comparison with new experimental data.
The first method has been developed specifically for molecular inner shell excitation and ionization by Nobuhiro Kosugi since 1980 and implemented in the GSCF3 code. [1] Here the core ionized states and core-to-excited states transitions are solved within the Hartree-Fock approximation by explicitly taking into account the core hole. The excited orbitals to be singly occupied by the core-electron excitations are optimized within the STatic EXchange (STEX) method by freezing the core and the occupied valence HF orbitals of the corresponding core hole state. The calculations have been run for several molecules of biological interest (tyramine, tryptamine, tryptophol, barbituric and thiobarbituric acid) and the obtained XPS and NEXAFS spectra have been compared with the experimental results. [2]
The second approach has been developed by Angela Acocella in order to investigate the onset of the ionization dynamics in photoelectron spectroscopy with a quantum-mechanical time-dependent propagator used to evolve the electronic wavefunction [3] with the aim to correlate it to the spectral analysis. In practice, the high energy of the incoming photon triggers a complicated re-organization of the wavefunction where the usually dominant one-photon contribution is combined with all the possible many-photon contributions of the same energy, together with the continuum states of the ionized electron. The presented model proved to reproduce with reasonable accuracy both XPS and UPS spectra of the coronene molecule. [4]
[1] N. Kosugi and H. Kuroda, Chem. Phys. Lett. 74 (1980) 490.
N. Kosugi and H. Kuroda, Chem. Phys. Lett., 94 (1983) 377.
N. Kosugi, Theor. Chim. Acta, 72 (1987) 149.
[2] M. Coreno, V. Feyer, O. Plekan, K. C. Prince, R. Richter; W. Caminati, L. Evangelisti, B. M. Giuliano, A. Maris, S. Melandri, manuscript in preparation.
[3] A. Acocella, G. A. Jones and F. Zerbetto, J. Phys. Chem. A 110 (2006) 5164-5172.
A. Acocella, F. Carbone and F. Zerbetto, J. Am. Chem. Soc., 132 (2010) 12166-12167.
[4] A. Acocella, M. De Simone, F. Evangelista, M. Coreno and F. Zerbetto, paper submitted
Inquiry into Stella Maris : 2014.
No full textMade available by the Northern Territory Library via the Publications (Legal Deposit) Act 2004 (NT).The online version is unique in that it uses references to a 'time point' extensively in the footnotes in the report. When reading the report online, the reader can click on the footnote and link to the relevant audio recording. This takes the reader to a specific 'time point' within the recording. To listen to the complete audio recording, the reader can click on the relevant link in the bibliography.
Cover title.Instrument of appointment -- Schedule -- Acknowledgements -- Executive summary -- Recommendations and findings -- Terms of reference 1-7 -- Bibliography -- Appendixes A-H.The inquiry was established to look into the gifting of the $3 million Stella Maris site in Darwin to Unions NT by the former Labor government has recommended the organisation's claim on the site be immediately relinquished.
The Inquiry into Stella Maris report was handed to the Administrator on 26 May 2014 and tabled in the Legislative Assembly of the Northern Territory on 19 June 2014.Includes bibliographical references (pages 88-95)
Microwave spectroscopy characterization of small organic rings
No full textLaboratory characterization of the molecular spectroscopic features is one of the necessary steps in the way of the identification of new species in extra-terrestrial environments.
The free jet millimeter wave Stark modulate d absorption spectrometer, located in the Chemistry Department of the University of Bologna, allows for the observation of the rotational spectra of systems with molecular weight up to about 200 a.m.u. in the 52-74.4 GHz frequency region.
The experimental work is strongly supported and complemented by the theoretical modeling and calculations with the aim of assigning the observed spectra and to obtain information on the molecular dynamics which involve, for example, conformational rearrangements, large amplitude motions, vibro-rotational coupling and the prediction of vibrational spectra.
We will illustrate some experimental studies on flexible five membered ring organic molecules and their 1:1 molecular complexes with water
Interplay of Rotational and Pseudorotational Motions in Flexible Cyclic Molecules
No full textSolutions to the time-independent nuclear Schrödinger equation associated with the pseudorotational motion of three flexible cyclic molecules are presented and discussed. Structural relaxations related to the pseudorotational motion are described as functions of a pseudorotation angle φ which is formulated according to the definition of ring-puckering coordinates originally proposed by Cremer and Pople (J. Am. Chem. Soc. 1975, 97 (6), 1354-1358). In order to take into account the interplay between pseudorotational and rotational motions, the rovibrational Hamiltonian matrices are formulated for the rotational quantum numbers J = 0 and J = 1. The rovibrational Hamiltonian matrices are constructed and diagonalized using a Python program developed by the authors. Suitable algorithms for (i) the construction of one-dimensional cuts of potential energy surfaces along the pseudorotation angle φ and (ii) the assignment of the vibrorotational wave functions (which are needed for the automatic calculation of rotational transition energies J = 0 → J = 1) are described and discussed
Analysis of Yield Spreads on Commercial Mortgage-Backed Securities
No full textYield spreads on commercial mortgage-backed securities (CMBS) are defined as the difference between the yield on CMBS and the yield on comparable-maturity Treasuries. CMBS yield spreads declined dramatically from 1992 until 1997, then increased in 1998 and 1999. The relationship between CMBS yield spreads and other variables is estimated in an effort to explain recent trends. Results identify several variables that are related to yield spreads on both fixed-rate and variable-rate CMBS. However, even after controlling for other observable factors, the yield spread on CMBS still declined from 1992 until 1997, then increased each of the next two years. Possible explanations for this phenomenon are explored.
Reconocida Empresaria Ganadera de Paraguay, Maris Llorens, Nueva Embajadora de Buena Voluntad del IICA
No full textParticipantes:
Empresaria ganadera y filántropa suiza-paraguaya, Maris Llorens.
Director General del IICA, Manuel Otero.
Ministro de Agricultura y Ganadería de Paraguay, Santiago Bertoni.La empresaria ganadera y filántropa suiza-paraguaya, Maris Llorens, fue designada nueva Embajadora de Buena Voluntad del Instituto Interamericano de Cooperación para la Agricultura (IICA) en temas de Producción Animal Sostenible, un reconocimiento a sus contribuciones para el desarrollo de una ganadería innovadora y la preservación ambiental
Beyond communication training: The MaRIS model for developing medical students’ human capabilities and personal resilience
No full textPurpose: Human capabilities in medicine, including communication skills, are increasingly important within the complex, challenging and dynamic landscape of healthcare. Supporting medical students to manage unavoidable role-related stressors adaptively may help mitigate the anguish that is too commonly reported among the profession. We developed a model, “MaRIS”, underpinned by contemplative pedagogy, to support medical students to enhance their human capabilities, across all three domains of Bloom's taxonomy, and their personal resilience. It is the first to integrate Mindfulness, affective Reflection, Impactive experiences and a Supportive environment into medical curriculum design. Here, we describe the theoretical basis underpinning MaRIS and present a preliminary study to evaluate its impact on students' subjectively-rated capabilities.
Materials and Methods: A questionnaire capturing self-ratings of competence, empathy and resilience, as well as impressions of their experiences, was administered to foundation year medical students before (T0), during (T1) and after delivery (T2).
Results: Fifty-five students completed the survey at all time points. Mean scores for all domains increased significantly from T0 to T1 and from T0 to T2. Free-text comments suggest learning impact across the cognitive, psychomotor and affective domains.
Conclusions: MaRIS appears to facilitate medical students' establishment of the foundations for building the human capabilities and personal resilience required for professional practice.Full Tex
Perspective-taking accuracy on a conceptually complex problem
No full textPerspective taking is the process of constructing an understanding of other persons' ways of conceptualizing and responding to situations. It involves the effortfulemployment of strategies that enable individuals to visualize, understand, anticipate, or
predict the perceptions, thoughts, feelings, or actions of others. This is achieved when the observer attempts to create a mental model that corresponds to another's own mental model of situations. The present research was designed in the context of a model that views perspective taking as a process of constructing a representation that varies in difficulty according to (a) the degree of similarity between the perspective taker and the target person and (b) the degree of similarity between the perspective taker's own life situation and that of the person whose perspective is taken (target situation) (Cutting &Chinn, 2007).
The perspective-taking problem provided to participants (college students enrolled in an educational psychology course) is unlike most prior research on perspective taking. It required them to predict how a conceptually novel target person (a villager living in Los Molinos, Peru) responded to a dissimilar situation (introduction of water purification practices). Multiple source documents on this topic provided opportunities for participants to seek out information and adjust their mental models accordingly. In addition, a variety of prompts and scaffolds to promote strategy use were
examined for their influence on perspective-taking accuracy. Results from this study showed that brainstorming multiple predictions facilitated initial prediction accuracy and that new information in critical source documents enhanced final prediction accuracy.
However, cognitive biases, such as rationalizing anomalous information and confirmation bias, interfered with correcting inaccurate predictions.Ph.D.Includes bibliographical references (150-163)by Maris F. Cuttin
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