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Search Results: 1 - 10 of 18860 matches for " Alexandre Scott "
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Bounds for Goal Achieving Probabilities of Mean-Variance Strategies with a No Bankruptcy Constraint  [PDF]
Alexandre Scott, Francois Watier
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.312A278
Abstract:

We establish, through solving semi-infinite programming problems, bounds on the probability of safely reaching a desired level of wealth on a finite horizon, when an investor starts with an optimal mean-variance financial investment strategy under a non-negative wealth restriction.

Sele??o de cursos de educa??o continuada por executivos de empresas
Moraes, Edmilson Alves de;Graeml, Alexandre Reis;Sanchez, Otávio Próspero;Mesquita, Frederico Scott Brusa;
RAE eletr?nica , 2006, DOI: 10.1590/S1676-56482006000200004
Abstract: this paper discusses the main factors used by executives to choose among different continuing education courses. it is based upon a survey that was carried out with 150 students attending these courses at the s?o paulo school of business - getulio vargas foundation in s?o paulo, brazil. data showed that school prestige, applicability of the proposed content and the theoretical/practical focus are essential for the decision about attending course at fgv-eaesp. another interesting finding was that students could be divided in groups with different interests, which is an invitation to schools to segment their courses, in order to better meet their students' expectations. curiously, the greatest difference between groups was found after a cluster analysis technique was applied. one group preferred homogeneous classes and the other preferred heterogeneous classes, made up of classmates with differing background, hierarchical positions and working in different industries.
Cadaveric Assessment of Synthetic Mid-Urethral Sling Placement  [PDF]
Scott Serels
Open Journal of Urology (OJU) , 2011, DOI: 10.4236/oju.2011.12006
Abstract: Purpose: To determine if 3 types of mid-urethral synthetic slings are visually the same. Materials and Methods: A retropubic, obturator, and single incision sling was individually placed in three cadavers. Tension was set using a spacer (obturator and retropubic). Single incision sling (SIS) tension was set by visual inspection. Thirty physicians were asked to determine placement method, tension, and location of the 3 slings. Results: Physicians were composed of 5 urologists, 7 urogynecologist, and 18 general gynecologists, with an average of 53 slings performed per year. Conclusion: This study showed that after placement of a sling it is hard to tell how the sling was placed and that most physicians felt the SIS was tensioned the best and most likely at the mid-urethra.
Cybersecurity: Integrating Information into the Microeconomics of the Consumer and the Firm  [PDF]
Scott Farrow
Journal of Information Security (JIS) , 2016, DOI: 10.4236/jis.2016.75023
Abstract: The connectivity of information has changed many things but not the way economists model consumers, firms and government. Information is here newly modeled as a fundamental element of microeconomic choices and utility, cost and tax functions. The results are more clearly defined metrics for losses due to cyber breaches or productivity gains from cyber investments. The integration of information into standard microeconomics also allows use of econometric and other tools to analyze the empirics of the consumer and the firm. In particular, the results identify ways in which losses in the Gordon and Loeb [1] model can be specified in more detail.
An Exploratory Survey of Sound Levels in New York City Restaurants and Bars  [PDF]
Gregory Scott
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.68005
Abstract: For several decades, there has been a significant need to better educate the public about noise pollution. A small number of small-scale studies have focused on the sound levels of restaurants and their impact on health and hearing. There have also been an increasing number of media articles stating that eating and drinking venues are getting increasingly loud making it more difficult for people to connect with others in conversation. This study reports on an exploratory large-scale noise survey of sound levels of 2376 restaurants and bars in New York City using a novel smart-phone application and categorized them based on how quiet or loud they were. The results suggest that: 1) A significant number of venues have high sound levels that are not conducive to conversation and may be endangering the health of patrons and employees, 2) that the reported sound levels by the venue managers on their online public business pages generally underestimated actual sound levels, and 3) the average sound levels in restaurants and bars are correlated by neighborhood and type of cuisine.
Editorial Special Issue on “Energetic Complementarity”  [PDF]
Alexandre Beluco
Energy and Power Engineering (EPE) , 2017, DOI: 10.4236/epe.2017.99033
Abstract: This editorial presents the motivations that were the focus of the papers that make up this Special Issue on energetic complementarity. The articles deal with the application of the concept of energetic complementarity in time under certain conditions and with the proposition of new means to evaluate complementarity in time between more than two renewable energy resources. An article further proposes a method for establishing energetic complementarity in space, a concept that is important and necessary for management and planning of energy resources but does not yet have tools that allow it to be quantified and handled appropriately. In addition, two letters to the editor discuss issues that still need to be matured for a better understanding and application of the concept of energetic complementarity, both in time and space.
Minamata Disease—Review  [PDF]
Alexandre Semionov
World Journal of Neuroscience (WJNS) , 2018, DOI: 10.4236/wjns.2018.82016
Abstract: Minamata disease is the name given to a neurological syndrome caused by or-ganic mercury intoxication. Most commonly it results from consumption of methylmercury contaminated seafood and in severe cases is classically mani-fested by concentric constriction of the visual fields, ataxia and sensory dis-turbance in the distal extremities. The radiographic and neuropathological find-ings parallel the clinical picture and typically consist of lesions selectively in-volving the visual cortex, cerebellum and postecentral gyri.
On Approximating the Gradient of the Value Function  [PDF]
Alexandre Dmitriev
Theoretical Economics Letters (TEL) , 2019, DOI: 10.4236/tel.2019.91011
Abstract:

The optimality conditions for macroeconomic problems with limited commitment often contain partial derivatives of the optimal value function, corresponding to the outside option. This paper contributes to the literature on recursive contracts by proposing an algorithm for approximating the gradient of the value function using simulation-based methods. Our method combines numerical solution and simulation of the model, Monte-Carlo integration and numerical differentiation. It does not suffer from the curse of dimensionality and is therefore convenient for models involving many state variables. The algorithm inherits the speed and accuracy limitations of the numerical solution method it relies on. Our accuracy analysis is limited to a few classical examples from macroeconomic literature.

Consideraciones termodinámicas entre la formación de poros y la presión hidrostática durante la soldadura subacuatica mojada
Quintana Puchol, Rafael;Perdomo González, Lorenzo;Duffus Scott, Alejandro;Bracarense, Alexandre Queiroz;Pessoa, Ezequiel Caires Pereira;
Soldagem & Inspe??o , 2009, DOI: 10.1590/S0104-92242009000200008
Abstract: the pores and cracks formations in weld bead during underwater wet welding are the main cause that prevent to reach the required mechanical properties of the weld metal. these defects are closely associated with the decomposition of the water molecule under conditions of electric arc. in this paper the thermodynamic calculations of the complex process of the water decomposition under the conditions of high temperatures of electric arc to a pressure of one atmosphere of steam is exposed. the values of the partial pressures of the five main products of the vaporizations and decomposition of the water (h2o(g), h2, o2, h and o) are calculated for temperatures among 1870 and 4000 k. due to the fact that atomic hydrogen is the main responsible for the pore formation in the weld metal its partial pressure as function of partial pressures of atomic oxygen and steam (water vapor) is expressed. values of hydrogen solubility in the liquid metal in conditions of underwater wet welding at 50 and 100 m of depth and, a comparison between the thermodynamic calculation and porosity measurement results are presented.
Problems in holomorphic dynamics
Ben Bielefeld,Mikhail Lyubich,Lennart Carleson,Robert Devaney,Alexandre Eremenko,Curt McMullen,John Milnor,Feliks Przytycki,Mary Rees,Scott Sutherland
Mathematics , 1992,
Abstract: Contents: 1. Quasiconformal Surgery and Deformations: Ben Bielefeld, Questions in quasiconformal surgery; Curt McMullen, Rational maps and Teichm\"uller space; John Milnor, Thurston's algorithm without critical finiteness; Mary Rees, A possible approach to a complex renormalization problem. 2. Geometry of Julia Sets: Lennart Carleson, Geometry of Julia sets; John Milnor, Problems on local connectivity. 3. Measurable Dynamics: Mikhail Lyubich, Measure and Dimension of Julia Sets; Feliks Przytycki, On invariant measures for iterations of holomorphic maps. 4. Iterates of Entire Functions: Robert Devaney, Open questions in non-rational complex dynamics; Alexandre Eremenko and Mikhail Lyubich, Wandering domains for holomorphic maps. 5. Newton's Method: Scott Sutherland, Bad polynomials for Newton's method
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