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Search Results: 1 - 10 of 467771 matches for " Diego A. Vazquez-Brust "
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Adaptability, Entrepreneurship and Stakeholder Integration: Scenarios and Strategies for Environment and Vulnerability  [PDF]
Jerónimo De-Burgos-Jiménez, Diego A. Vazquez-Brust, José A. Plaza-úbeda
Journal of Environmental Protection (JEP) , 2011, DOI: 10.4236/jep.2011.210160
Abstract: The “vicious circle” between poverty and environmental deterioration is a major challenge for those developmental approaches which look to improve the welfare of vulnerable communities. Environmental deterioration increases poverty while, at the same time, poverty causes further environmental deterioration as the business activities which communities depend upon for survival aggravate environmental deterioration by causing pollution and waste. It is therefore necessary that firms and communities collaborate in order to develop innovative solutions to break this vicious circle. This paper argues that such collaboration should be based on genuine stakeholders’ integration and entrepreneurship, proposes a holistic framework to guide business intervention strategies, and further explores collaboration scenarios between firms and communities.
Oligodoncia: Estudio radiográfico de un caso clínico
Carbajal,Eduardo Emilio; Martínez,Beatriz Ana María; Osende,Néstor Hugo; Vazquez,Diego Jorge;
Acta Odontológica Venezolana , 2008,
Abstract: a clinical case of olygodontia with a number of 20 agenesis is presented. twenty eight year-old, female patient. available from anamnesis, six family members present this anomaly. none of them was diagnosed ectodermic dysplasia or any other syndrome related to this pathology. a number of radiographic studies consisting in panoramic dynamic techniques are conducted. based on the abovementioned, the number of affected teeth, their location, sex, age and race are quantitatively and qualitatively analyzed. the results obtained are presented in tables and figures.
Oligodoncia: Estudio radiográfico de un caso clínico
Eduardo Emilio Carbajal,Beatriz Ana María Martínez,Néstor Hugo Osende,Diego Jorge Vazquez
Acta Odontológica Venezolana , 2008,
Abstract: Se presenta un caso clínico de oligodoncia con un número de 20 agenesias. El paciente de 28 a os de edad es de sexo femenino. De la anamnesis surge que otros 6 miembros de la familia presentan esta anomalía, de los cuales a ninguno se le diagnosticó displasia ectodérmica o algún síndrome relacionado a esta patología. Se realizan estudios radiográficos basados en la técnica panorámica dinámica. A partir de lo expuesto se analiza cuantitativamente y cualitativamente el número de dientes afectados, ubicación de los mismos, sexo, edad y raza. Los resultados obtenidos se representan en tablas y gráficos. A clinical case of olygodontia with a number of 20 agenesis is presented. Twenty eight year-old, female patient. Available from anamnesis, six family members present this anomaly. None of them was diagnosed ectodermic dysplasia or any other syndrome related to this pathology. A number of radiographic studies consisting in panoramic dynamic techniques are conducted. Based on the abovementioned, the number of affected teeth, their location, sex, age and race are quantitatively and qualitatively analyzed. The results obtained are presented in tables and figures.
Finite Dimensional Approximation of the Monodromy Operator of a Periodic Delay Differential Equation with Piecewise Constant Orthonormal Functions  [PDF]
Eli A. Vazquez, Joaquin Collado
Applied Mathematics (AM) , 2018, DOI: 10.4236/am.2018.911086
Abstract:
Using piecewise constant orthonormal functions, an approximation of the monodromy operator of a Linear Periodic Delay Differential Equation (PDDE) is obtained by approximating the integral equation corresponding to the PDDE as a linear operator over the space of initial conditions. This approximation allows us to consider the state space as finite dimensional resulting in a finite matrix approximation whose spectrum converges to the spectrum of the monodromy operator.
Transient IR study of Blue Light Sensing Proteins
Lukacs A.,Haigney A.,Brust R.,Zhao R.
EPJ Web of Conferences , 2013, DOI: 10.1051/epjconf/20134107009
Abstract: In this work we present the identification of redox intermediates of flavin and tryptophan after photoexcitation in glucose oxidase, Y21W AppA mutant and lAppA by the means of TRIR spectroscopy.
The Discovery of Stromatolites Developing at 3570 m above Sea Level in a High-Altitude Volcanic Lake Socompa, Argentinean Andes
María E. Farías, Nicolás Rascovan, Diego M. Toneatti, Virginia H. Albarracín, María R. Flores, Daniel G. Poiré, Mónica M. Collavino, O. Mario Aguilar, Martin P. Vazquez, Lubos Polerecky
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0053497
Abstract: We describe stromatolites forming at an altitude of 3570 m at the shore of a volcanic lake Socompa, Argentinean Andes. The water at the site of stromatolites formation is alkaline, hypersaline, rich in inorganic nutrients, very rich in arsenic, and warm (20–24°C) due to a hydrothermal input. The stromatolites do not lithify, but form broad, rounded and low-domed bioherms dominated by diatom frustules and aragonite micro-crystals agglutinated by extracellular substances. In comparison to other modern stromatolites, they harbour an atypical microbial community characterized by highly abundant representatives of Deinococcus-Thermus, Rhodobacteraceae, Desulfobacterales and Spirochaetes. Additionally, a high proportion of the sequences that could not be classified at phylum level showed less than 80% identity to the best hit in the NCBI database, suggesting the presence of novel distant lineages. The primary production in the stromatolites is generally high and likely dominated by Microcoleus sp. Through negative phototaxis, the location of these cyanobacteria in the stromatolites is controlled by UV light, which greatly influences their photosynthetic activity. Diatoms, dominated by Amphora sp., are abundant in the anoxic, sulfidic and essentially dark parts of the stromatolites. Although their origin in the stromatolites is unclear, they are possibly an important source of anaerobically degraded organic matter that induces in situ aragonite precipitation. To the best of our knowledge, this is so far the highest altitude with documented actively forming stromatolites. Their generally rich, diverse and to a large extent novel microbial community likely harbours valuable genetic and proteomic reserves, and thus deserves active protection. Furthermore, since the stromatolites flourish in an environment characterized by a multitude of extremes, including high exposure to UV radiation, they can be an excellent model system for studying microbial adaptations under conditions that, at least in part, resemble those during the early phase of life evolution on Earth.
Técnicas para análise de desempenho de computadores
Vazquez, Pedro A. M.;
Química Nova , 2002, DOI: 10.1590/S0100-40422002000100020
Abstract: a series of open source benchmarks for computer performance analysis of personal computers with a focus on computational chemistry calculations is presented. the results returned by these tests are discussed and used to correlate with the actual performance of a set of computers available for research on two computing intensive fields of chemistry, quantum chemical and molecular simulation calculations.
Optimal management of oropharyngeal and esophageal candidiasis in patients living with HIV infection
Jose A Vazquez
HIV/AIDS - Research and Palliative Care , 2010, DOI: http://dx.doi.org/10.2147/HIV.S6660
Abstract: imal management of oropharyngeal and esophageal candidiasis in patients living with HIV infection Review (5595) Total Article Views Authors: Jose A Vazquez Published Date April 2010 Volume 2010:2 Pages 89 - 101 DOI: http://dx.doi.org/10.2147/HIV.S6660 Jose A Vazquez Division of Infectious Diseases, Henry Ford Hospital, Wayne State University School of Medicine, Detroit, MI, USA Abstract: Mucocutaneous candidiasis is frequently one of the f irst signs of human immunodeficiency virus (HIV) infection. Over 90% of patients with AIDS will develop oropharyngeal candidiasis (OPC) at some time during their illness. Although numerous antifungal agents are available, azoles, both topical (clotrimazole) and systemic (fluconazole, itraconazole, voriconazole, posaconazole) have replaced older topical antifungals (gentian violet and nystatin) in the management of oropharyngeal candidiasis in these patients. The systemic azoles, are generally safe and effective agents in HIV-infected patients with oropharyngeal candidiasis. A constant concern in these patients is relapse, which is dependent on the degree of immunosuppression commonly seen after topical therapy, rather than with systemic azole therapy. Candida esophagitis (CE) is also an important concern since it occurs in more than 10% of patients with AIDS and can lead to a decrease in oral intake and associated weight loss. Fluconazole has become the most widely used antifungal in the management of mucosal candidiasis. However, itraconazole and posaconazole have similar clinical response rates as fluconazole and are also effective alternative agents. In patients with fluconazole-refractory mucosal candidiasis, treatment options now include itraconazole solution, voriconazole, posaconazole, and the newer echinocandins (caspofungin, micafungin, and anidulafungin).
Optimal management of oropharyngeal and esophageal candidiasis in patients living with HIV infection
Jose A Vazquez
HIV/AIDS - Research and Palliative Care , 2010,
Abstract: Jose A VazquezDivision of Infectious Diseases, Henry Ford Hospital, Wayne State University School of Medicine, Detroit, MI, USAAbstract: Mucocutaneous candidiasis is frequently one of the f irst signs of human immunodeficiency virus (HIV) infection. Over 90% of patients with AIDS will develop oropharyngeal candidiasis (OPC) at some time during their illness. Although numerous antifungal agents are available, azoles, both topical (clotrimazole) and systemic (fluconazole, itraconazole, voriconazole, posaconazole) have replaced older topical antifungals (gentian violet and nystatin) in the management of oropharyngeal candidiasis in these patients. The systemic azoles, are generally safe and effective agents in HIV-infected patients with oropharyngeal candidiasis. A constant concern in these patients is relapse, which is dependent on the degree of immunosuppression commonly seen after topical therapy, rather than with systemic azole therapy. Candida esophagitis (CE) is also an important concern since it occurs in more than 10% of patients with AIDS and can lead to a decrease in oral intake and associated weight loss. Fluconazole has become the most widely used antifungal in the management of mucosal candidiasis. However, itraconazole and posaconazole have similar clinical response rates as fluconazole and are also effective alternative agents. In patients with fluconazole-refractory mucosal candidiasis, treatment options now include itraconazole solution, voriconazole, posaconazole, and the newer echinocandins (caspofungin, micafungin, and anidulafungin).Keywords: oropharyngeal candidiasis, esophageal candidiasis, HAART, antifungal agents, HIV, AIDS
Técnicas para análise de desempenho de computadores
Vazquez Pedro A. M.
Química Nova , 2002,
Abstract: A series of open source benchmarks for computer performance analysis of personal computers with a focus on computational chemistry calculations is presented. The results returned by these tests are discussed and used to correlate with the actual performance of a set of computers available for research on two computing intensive fields of chemistry, quantum chemical and molecular simulation calculations.
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