991 research outputs found

    Observatorio de bibliometría y cienciometría USTA Métricas de autor FICHA BIBLIOMÉTRICA Cristian Fernando Tellez Piñerez

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    Informe de las métricas de autor del Dr. Cristian Fernando Tellez Piñerez de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicaciones.Report of the author metrics Cristian Fernando Tellez Piñerez of the publications indexed in Google Scholar whose objective is to provide an input for the strengthening of the capacities and potentialities of the authors of the Santo Tomás University in the positioning and visibility of their publications.http://unidadinvestigacion.usta.edu.c

    Imports under a foreign exchange constraint

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    The traditional model of import behavior -- which looks only at the gross domestic product (GDP) and real import prices as explanatory variables -- failed to predict or explain the developing countries'import slumps in the early 1980's. This paper expands on a more useful model, the Hemphill, which incorporates the traditional variables (relative prices and domestic income) with the variables introduced by Hemphill (foreign exchange receipts and international reserves). Section 2 of this paper discusses the theoretical models in the present study. The traditional model, used here as a benchmark, is presented first, and is later extended to include foreign exchange constraints. Section 3 presents the empirical estimates of the general import models that include foreign constraints, and two special cases, the Hemphill and benchmark models, using pooled, cross-section time series. Section 4 concludes that policy makers must look at the policies that affect GDP and prices and the availability of foreign exchange when trying to estimate import behavior in developing countries.Economic Theory&Research,Environmental Economics&Policies,Economic Stabilization,Inequality,Geographical Information Systems

    New ways of combating demineralization: link between classic and allopathic medicine

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    Prevention and allopathic medicine gained attention, since it is possible for dentists to prevent demineralization, using plants and natural substances with well-known efficacy. The purpose of this study was to present new methods for teeth remineralization. It was made a selection of 10 extracted teeth, maintained in physiological serum, with no color fading, decay or demineralization. It was induced demineralization, with ortho-phosphoric acid (concentration 45 %), for one minute. The probes were visually and with optical coherence tomography (OCT) inspected. The natural product and the bonding with additional nanoparticles of argent were created and applied on the demineralization zone of the both groups of teeth. Each tooth in the first group had one plain surface demineralized. The second group of teeth had a cavity prepared on one of each tooth’s side. The pastes were applied on the demineralized surfaces and in the demineralized cavities for two minutes. After time expired, the pasta applied on the first group of teeth was washed away; the bonding above the second group of teeth was light cured. The probes were again visually and with OCT inspected. It was observed an improvement in remineralizing the white marks on plain surfaces and in the created cavities, the OCT being able to detect different levels of remineralization. The efficacy of natural pasta depends on the time it is applied and the concentration of the different main substances. Also, the type of surface, plain or occlusal facets, may influence the substances’ penetration ability. The non-invasive specific feature of these products, low costs and safety are strong positive aspects of this method of remineralization. However, the natural process of remineralization is a long-lasting one; perfecting the main substances in order to accelerate the process, in addition to several in vivo studies would be necessary to be fulfilled

    Characterisation of drug and placebo effects on water by NIR and Opto – magnetic spectroscopy

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    In conventional medicine, homeopathy has always aroused a great deal of skepticism, just as a placebo effect. In homeopathy, substances are diluted way beyond the point at which no trace of the original substances could remain and could be detected. It is as though the water has retained memory of the departed molecules. In the recent years, as the technology and science has progressed, some new extraordinary findings about water has emerged: that it forms massive exclusion zones of highly structured water [2], that it is quantum coherent [3], and that it can be used as a mirror to explore what is dissolved in it [4]. Furthermore HIV discoverer and Nobel Prize winner Luc Montagnier has given support to Benveniste’s findings [4] and published results of his experiments in which the DNA sequence was recreated from its electromagnetic signature in pure water [5]. Giving this new evidences in support of existing memory of water, we performed a study on placebo effect and homeopathic solutions using novel methods of Opto-magnetic spectroscopy [6], which studies water electromagnetic and magnetic properties, and NIR spectroscopy with the new approach Aquaphotomics to explore the water structure [4]. Our preliminary findings are in support of existence of water memory

    Sacral (S1) herpes zoster

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    Anca Chiriac,1–3 Anca E Chiriac,4 Adrian Naznean,5 Cosmin Moldovan,6 Cristian Podoleanu,7 Simona Stolnicu81The Department of Dermato-Physiology, Apollonia University, Iaşi, Romania; 2Department of Dermatology, Nicolina Medical Center, Iaşi, Romania; 3“P. Poni’’ Institute of Macromolecular Chemistry, Iaşi, Romania; 4Department of Epidemiology, University of Medicine and Pharmacy " Grigore T Popa", Iaşi, Romania; 5The Department of Foreign Languages, The University of Medicine and Pharmacy of Tîrgu Mureș, Tîrgu Mureș, , Romania; 6The Department of Applied Simulation in Medicine, The University of Medicine and Pharmacy of Tîrgu Mureș, Tîrgu Mureș, Romania; 7The Department of Cardiology, The University of Medicine and Pharmacy of Tîrgu Mureș, Tîrgu Mureș, Romania; 8The Department of Pathology, The University of Medicine and Pharmacy of Tîrgu Mureș, Tîrgu Mureș, RomaniaAbstract: Herpes zoster usually affects the thoracic and lumbar vertebra (T3–L3), while sacral herpes zoster has been very rarely reported. We present a very rare case of herpes zoster involving S1 dermatome in a 35-year-old healthy man who presented aching pain and typical herpes zoster eruption on the lateral aspect of the calcaneus, lateral plantar area and dorsal aspect of digits III and IV.Keywords: herpes zoster, S1, pain, sacral zoste

    Dental Impression Technique Using Optoelectronic Devices

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    The use of Optical Coherence Tomography (OCT) as a non-invasive and high precision quantitative information providing tool has been well established by researches within the last decade. The marginal discrepancy values can be scrutinized in optical biopsy made in three dimensional (3D) micro millimetre scale and reveal detailed qualitative and quantitative information of soft and hard tissues. OCT-based high resolution 3D images can provide a significant impact on finding recurrent caries, restorative failure, analysing the precision of crown preparation, and prosthetic elements marginal adaptation error with the gingiva and dental hard tissues. During the CAD/CAM process of prosthodontic restorations, the circumvent of any error is important for the practitioner and the technician to reduce waste of time and material. Additionally, OCT images help to achieve a new or semi-skilled practitioner to analyse their crown preparation works and help to develop their skills faster than in a conventional way. The aim of this study is to highlight the advantages of OCT in high precision prosthodontic restorations

    Superficial basal cell carcinoma treated with 70% trichloroacetic acid applied topically: a case study

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    Anca Chiriac,1–3 Piotr Brzezinski,4 Cosmin Moldovan,5 Cristian Podoleanu,6 Marius Florin Coros,7 Simona Stolnicu8 1Department of Dermatology, Nicolina Medical Center, Iasi, 2Department of Dermatology, Apollonia University, Iasi, 3Department of Dermatology, P. Poni Research Institute, Romanian Academy Iasi, Romania; 4Department of Dermatology, 6th Military Support Unit, Utska, Poland; 5Department of Histology, 6Department of Cardiology, 7Department of Surgery, 8Department of Pathology, University of Medicine and Pharmacy of Targu‑Mures, Targu-Mures, Romania Background: Basal cell carcinoma (BCC) is the most common form of skin cancer, affecting millions of people worldwide. The treatment concept for BCCs is the surgical one, but it is costly, as such, searching for alternative medical therapeutics is justified. Aim: To highlight the efficacy of high concentration (70%) trichloroacetic acid (TCA) as a choice therapy for low-risk BCC. Method and patient: Authors present, for the first time, the use of a high concentration TCA applied once a week for 2 consecutive weeks with a toothpick, on a patient with BCC on the right preauricular area. Results: On examination 4 weeks later, the lesion was not clinically and dermatoscopically evidenced. Conclusion: High concentration TCA could be an effective and safe, non-invasive choice of therapy for low-risk BCC, easy to perform, not expensive, with good cosmetic results, especially for patients who are not likely to undergo invasive or expensive treatments. Keywords: basal cell carcinoma, therapy, trichloroacetic acid, dermatolog

    Cinématographie roumaine : visibilité et agentivité des langues minoritaires dans le film R.M.N. de Cristian Mungiu

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    The article addresses the visibility and agency of minority languages in Cristian Mungiu's film R.M.N.. The author explores how this film, set in a multiethnic village in Transylvania, uses linguistic diversity to reveal racial, cultural, and social tensions. The film depicts an environment where multiple languages coexist, but latent conflicts emerge, particularly with the arrival of foreign workers. These dynamics highlight issues related to racism and populism while illustrating the complexity of linguistic interactions in a multilingual society

    Manifestaciones del Teatro del Absurdo en las obras de Cristian Cortez

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    This work presents a study of the characteristics of the Theatre of the Absurd in Latin America and in particular Ecuador, through the study of the work of the Ecuadorian author Cristian Cortez. We review the origins of the genre from the original works of its founders -such as Samuel Beckett and Eugene Ionesco in Europe- and base our analysis in the classification made by Martin Esslin in his book Theatre of the Absurd. This study pays particular attention to the conditions in which this genre developed in Latin America, the cultural, political, social and economic aspects, and the main similarities with its origins in Europe. The analysis is based on five short plays by Cristian Cortez. The contrast among these plays is analyzed from the motivations of the author to the means that he uses to fulfill his objective. Among his plays, the most outstanding elements are mainly related with women and their struggles to live their lives and fulfill their desires in Latin American society. As we will show, the plays analyzed have many of the elements that define the theatre of the absurd and make the author a perfect example of this theatrical movement in Latin America

    The Non-Equilibrium Ising Model in Two Dimensions: a Numerical Study

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    In this paper, we study the boundary-driven ferromagnetic Ising model in two dimensions. In this non-equilibrium setting, in the low temperature region, the Ising model has phase separation in the presence of a current. We investigate, by means of numerical simulations, Kawasaki dynamics with magnetization reservoirs. The results show that, in the stationary non-equilibrium state, the Ising model may have uphill diffusion and magnetization profiles with three discontinuities. These results complement the results of a previous paper by Colangeli, Giberti, Vernia and the present author [9]. They also allow to state a full picture of the hydrodynamic limit
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