cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Newton's aerodynamic problem in media of chaotically moving particles
Creators: name: Plakhov, Alexander Yu.
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optimization and Control (math.OC)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 49Q10; 49J10

description: We study the problem of minimal resistance for a body moving with constant velocity in a rarefied medium of chaotically moving point particles, in Euclidean space R^d. The particles distribution over velocities is radially symmetric. Under some additional assumptions on the distribution function, the complete classification of bodies of least resistance is made. In the case of three and more dimensions there are two kinds of solutions: a body similar to the solution of classical Newton's problem and a union of two such bodies ``glued together'' by rear parts of their surfaces. In the two-dimensional case there are solutions of five different types: (a) a trapezium; (b) an isosceles triangle; (c) the union of a triangle and a trapezium with common base; (d) the union of two isosceles triangles with common base; (e) the union of two triangles and a trapezium. The cases (a)--(d) are realized for any distribution of particles over velocities, and the case (e) is only realized for some distributions. Two limit cases are considered, where the average velocity of particles is big and where it is small as compared to the body's velocity. Finally, using the obtained analytical results, we study numerically a particular case: the problem of body's motion in a rarefied homogeneous monatomic ideal gas of positive temperature in R^2 and in R^3.
description: Accepted to Sbornik: Mathematics (in press); 50 pages
Extension of Cross Validation with Confidence to Determining Number of Communities in Stochastic Block Models
Creators: name: Jining Qin
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: Statistics
subject: FOS: Mathematics

description: Stochastic block model (SBM) and its variants constitute an important family of methods for modeling network data. There is a rich literature on methods for estimatingthe block labels and model parameters of stochastic block models, as well as study on the properties of such methods. Most of these studies would require the number of communities K as an input, making this an important problem. There are several methods proposed for this problem such as spectral methods, likelihood based methods, information criteria, Bayesian methods, and cross-validation. Cross-validation is a natural option for this problem since it is a widely used generic method for evaluating statistical methods, easy to be adapted for various scenarios. However, cross-validation is known to be inconsistent and prone to over-fitting unless using impractical split ratios. Cross-validation with confidence (CVC) has recently been proposed as a variation of cross-validation with better theoretical guarantees in conventional settings. In this thesis we studied the properties of cross-validation with confidence for stochastic block models. Practically, we implemented different variations of thismethod by changing the train-test split scheme, approaches of obtaining the sampling distribution for the test statistic, and the loss function in cross-validation. We checked the performance of our method amongst these variations and against similar established methods in the literature. We checked its robustness under misspecification and different data generating processes. We also tested our algorithmby applying it to two widely used real-world data sets. In addition, through theoretical studies, we show that under certain assumptions, our method is guaranteedto eliminate under-fitting candidate models. We also further showed that CVC, unlike standard cross-validation, can consistently pick the optimalK by showing that the validated loss of the true model is not much worse than that of a slightly over- fitting model. Therefore, the candidate set output by a CVC procedure will contain the optimal model with guaranteed probability.
Large optical nonlinearity enhancement under electronic strong coupling
Creators: name: Wang, Kuidong
name: Seidel, Marcus
name: Nagarajan, Kalaivanan
name: Chervy, Thibault
name: Genet, Cyriaque
name: Ebbesen, Thomas W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nonlinear optical responses provide a powerful way to understand the microscopic interactions between laser fields and matter. They are critical for plenty of applications, such as in lasers, integrated photonic circuits, biosensing and medical tools. However, most materials exhibit weak optical nonlinearities or long response times when they interact with intense optical fields. Here, we strongly couple the exciton of organic molecules to an optical mode of a Fabry-Perot cavity, and achieve an enhancement of the nonlinear complex refractive index by two orders of magnitude compared with that of the uncoupled condition. Moreover, the coupled system shows an ultrafast response of ~120 fs that we extract from optical cross-correlation measurements. The ultrafast and large enhancement of the nonlinar coefficients in this work paves the way for exploring strong coupling effects on various third-order nonlinear optical phenomena and for technological applications.
description: 31 pages, including Supplementary Material file
On the associative homotopy Lie algebras and the Wronskians
Creators: name: Kiselev, A. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Rings and Algebras (math.RA)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 15A15, 17B66, 81T40

description: Representations of the Schlessinger-Stasheff's associative homotopy Lie algebras in the spaces of higher-order differential operators are analyzed; in particular, a remarkable identity for the Wronskian determinants is obtained. The W-transformations of chiral embeddings, related with the Toda equations, of complex curves into the Kaehler manifolds are shown to be endowed with the homotopy Lie algebra structures. Extensions of the Wronskian determinants that preserve the properties of the Schlessinger-Stasheff's algebras are constructed for the case of $n\geq1$ independent variables.
description: 18 pages, no figures. To appear in: Fundamental'naya i Prikladnaya Matematika (English transl.: Journal of Mathematical Sciences)
Multivariate postprocessing methods for high-dimensional seasonal weather forecasts
Creators: name: Heinrich, Claudio
name: Hellton, Kristoffer H.
name: Lenkoski, Alex
name: Thorarinsdottir, Thordis L.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Seasonal weather forecasts are crucial for long-term planning in many practical situations and skillful forecasts may have substantial economic and humanitarian implications. Current seasonal forecasting models require statistical postprocessing of the output to correct systematic biases and unrealistic uncertainty assessments. We propose a multivariate postprocessing approach utilizing covariance tapering, combined with a dimension reduction step based on principal component analysis for efficient computation. Our proposed technique can correctly and efficiently handle non-stationary, non-isotropic and negatively correlated spatial error patterns, and is applicable on a global scale. Further, a moving average approach to marginal postprocessing is shown to flexibly handle trends in biases caused by global warming, and short training periods. In an application to global sea surface temperature forecasts issued by the Norwegian Climate Prediction Model (NorCPM), our proposed methodology is shown to outperform known reference methods.
The mathematics of Bitcoin
Creators: name: Grunspan, Cyril
name: Pérez-Marco, Ricardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Overview (math.HO)
subject: Cryptography and Security (cs.CR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We survey recent results on the mathematical stability of Bitcoin protocol. Profitability and probability of a double spend are estimated in closed form with classical special functions. The stability of Bitcoin mining rules is analyzed and several theorems are proved using martingale and combinatorics techniques. In particular, the empirical observation of the stability of the Bitcoin protocol is proved. This survey article on the mathematics of Bitcoin is published by the Newsletter of the European Mathematical Society, vol.115, 2020, p.31-37. Continuation of arXiv:1601.05254 (EMS Newsletter, 100, 2016 p.32).
description: 7 pages, 4 figures
Emprendimiento alrededor del Sector de la Minería y el Petróleo en Colombia
Creators: name: Perry, Guillermo
name: Palacios, Camilo
name: Perry, Guillermo
name: Palacios, Camilo
Publisher: name: Unknown
Year: 2013
Subjects: subject: Community/Rural/Urban Development
subject: Emprendimiento
subject: Desarrollo Económico
subject: Petróleo y Minería
subject: Desarrollo de Proveedores
subject: Desarrollo Regional

description: Esta investigación explora el emprendimiento alrededor del sector de la minería y el petróleo en Colombia, y en particular, busca determinar si el auge minero energético por el que atraviesa el país está creando capacidades emprendedoras que puedan ser transferidas o utilizadas en otras áreas. Los encadenamientos del sector con otros sectores económicos, los resultados de una encuesta realizada a una muestra de proveedores de empresas del sector minero energético en Colombia, y los resultados de los distintos programas de desarrollo regional y rural implementados por estas empresas, confirman que el auge minero energético ha tenido un impacto positivo sobre el emprendimiento en el país, pero que este podría ser considerablemente mayor si se refuerzan las incipientes políticas públicas de estimulo y los programas de las empresas.
Bellman equations for optimal feedback control of qubit states
Creators: name: Bouten, Luc
name: Edwards, Simon
name: Belavkin, V P
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using results from quantum filtering theory and methods from classical control theory, we derive an optimal control strategy for an open two-level system (a qubit in interaction with the electromagnetic field) controlled by a laser. The aim is to optimally choose the laser's amplitude and phase in order to drive the system into a desired state. The Bellman equations are obtained for the case of diffusive and counting measurements for vacuum field states. A full exact solution of the optimal control problem is given for a system with simpler, linear, dynamics. These linear dynamics can be obtained physically by considering a two-level atom in a strongly driven, heavily damped, optical cavity.
description: 10 pages, no figures, replaced the simpler model in section 5
Promoción de la Conservación de Bosque Natural de Roble mediante el pago por el Servicio Ambiental de Almacenamiento de Carbono: Un Ejercicio de Optimización Dinámica Aplicado en el Corredor Ecológico Guantiva-La Rusia-Iguaque (Colombia)
Creators: name: Alvarez, Andres Camilo
name: Alvarez, Andres Camilo
Publisher: name: Unknown
Year: 2013
Subjects: subject: Environmental Economics and Policy
subject: Pagos por Servicios Ambientales
subject: REDD+
subject: conservación de bosques naturales
subject: optimización dinámica
subject: Quercus humboldtii.

description: Reducir la deforestación del bosque natural implica conservar la biodiversidad y mantener almacenado el carbono reduciendo las emisiones de Gases de Efecto Invernadero. Los pagos por servicios ambientales –PSA– fortalecerían los mecanismos de regulación directa para la conservación ya que: reflejan el costo de oportunidad de conservar, minimizan costos de transacción, son efectivos al conservar áreas mayores y establecen niveles sostenibles de aprovechamiento forestal. Usando un modelo de optimización dinámica el cual incluye PSA por almacenamiento de carbono en el bosque de roble del corredor Guantiva-La Rusia-Iguaque se encuentra que el área conservada sería 103.426 hectáreas, cifra mayor al área protegida actualmente de 20.089 hectáreas.
A Nonlinear Extension of Korovkin's Theorem
Creators: name: Gal, Sorin G.
name: Niculescu, Constantin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 41A35 (Primary), 41A36, 41A63 (Secondary)

description: In this paper we extend the classical Korovkin theorems to the framework of comonotone additive, sublinear and monotone operators. Based on the theory of Choquet capacities, several concrete examples illustrating our results are also discussed.
description: 12 pages
DESENVOLVIMENTO SUSTENTÁVEL NAS INOVAÇÕES TECNOLÓGICAS DA INDÚSTRIA ALIMENTÍCIA BRASILEIRA: EM QUAL ESTÁGIO ESTAMOS?
Creators: name: Dias, Marcelo Fernandes Pacheco
name: Pedrozo, Eugenio Avila
name: Dias, Marcelo Fernandes Pacheco
name: Pedrozo, Eugenio Avila
Publisher: name: Unknown
Year: 2012
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Inovação tecnológica
subject: pintec
subject: sustentabilidade
subject: criação de valor
subject: indústria de alimentos.

description: Hoje estamos vivendo o desafio da sustentabilidade. Não há consenso entre os executivos sobre o papel das empresas nesse processo, apesar de algumas delas já inserirem a sustentabilidade no seu discurso. Assim, buscou-se, com base em estudos realizados sobre inovação tecnológica nas indústrias brasileiras, avaliar como essas estão sendo orientadas para influenciar a sustentabilidade (dimensões econômica, social e ambiental) e a agregação de valor empresarial. O setor alimentício foi escolhido dada sua grande importância social, intensivo uso de recursos naturais e a sua importância econômica no agronegócio brasileiro. Trata-se de uma pesquisa de natureza predominantemente qualitativa que utilizou dados secundários referentes a três pesquisas sobre inovação tecnológica realizadas pelo Instituto Brasileiro de Geografia e Estatística - IBGE. Os resultados demonstram que, em relação aos pilares da sustentabilidade, a dimensão econômica recebeu mais ênfase nas inovações do setor. Constatou-se que a agregação de valor sustentável, originada das inovações tecnológicas com foco nas dimensões ambientais e sociais, está num estágio inicial e que essas inovações estão reforçando,predominantemente, a busca de oportunidades de negócios, que ainda é orientada por uma lógica quase que exclusivamente econômica.
Elliptic Flow in Au+Au Collisions at RHIC
Creators: name: Vale, Carla M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Elliptic flow is an interesting probe of the dynamical evolution of the dense system formed in the ultrarelativistic heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC). The elliptic flow dependences on transverse momentum, centrality, and pseudorapidity were measured using data collected by the PHOBOS detector, which offers a unique opportunity to study the azimuthal anisotropies of charged particles over a wide range of pseudorapidity. These measurements are presented, together with an overview of the analysis methods and a discussion of the results.
description: Presented at Hot Quarks 2004; 7 pages, 6 figures
EFEITO DOS MECANISMOS DE REDUÇÃO DA ASSIMETRIA DA INFORMAÇÃO E DA INCERTEZA DA QUALIDADE NA ESTRUTURA DE GOVERNANÇA
Creators: name: Vinholis, Marcela De Mello Brandao
name: Toledo, Jose Carlos De
name: Souza Filho, Hildo Meirelles De
name: Vinholis, Marcela De Mello Brandao
name: Toledo, Jose Carlos De
name: Souza Filho, Hildo Meirelles De
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Segurança do alimento
subject: qualidade
subject: rastreabilidade
subject: certificação
subject: marca.

description: A ocorrência de casos de contaminações alimentares de maior gravidade, associadas ao ambiente comercial mais competitivo, resultaram em maior atenção à qualidade e segurança do alimento e na intensificação e difusão de mecanismos públicos e privados que incorporaram novos requisitos a serem atendidos pelos produtos alimentícios. A predominância de atributos de experiência e de crença nos produtos alimentares acentua os problemas de assimetria da informação entre os agentes de uma transação e permitem, por exemplo, que produtos com qualidades distintas sejam comercializados a preços semelhantes e dificultam a percepção do mercado sobre diferenças efetivas na qualidade dos produtos. Por meio de revisão bibliográfica, e de dados secundários, este trabalho apresenta alguns mecanismos que têm sido utilizados para minimizar esses problemas, tais como: a intervenção do Estado, a utilização da marca, a prática da rastreabilidade e a adoção da certificação. Observa-se que a adoção de tais práticas tem provocado mudanças nas formas de coordenação das transações entre os agentes de sistemas agroalimentares.
Supervised convolutional neural networks for classification of flaring and nonflaring active regions using line-of-sight magnetograms
Creators: name: Bhattacharjee, Shamik
name: Alshehhi, Rasha
name: Dhuri, Dattaraj B.
name: Hanasoge, Shravan M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar flares are explosions in the solar atmosphere that release intense bursts of short-wavelength radiation and are capable of producing severe space-weather consequences. Flares release free energy built up in coronal fields, which are rooted in active regions (ARs) on the photosphere, via magnetic reconnection. The exact processes that lead to reconnection are not fully known and therefore reliable forecasting of flares is challenging. Recently, photospheric magnetic-field data has been extensively analysed using machine learning (ML) and these studies suggest that flare-forecasting accuracy does not strongly depend on how long in advance flares are predicted (Bobra & Couvidat 2015; Raboonik et al. 2017; Huang et al. 2018). Here, we use ML to understand the evolution of AR magnetic fields before and after flares. We explicitly train convolutional neural networks (CNNs) to classify SDO/HMI line-of-sight magnetograms into ARs producing at least one M- or X-class flare or as nonflaring. We find that flaring ARs remain in flare-productive states -- marked by recall >60% with a peak of ~ 80% -- days before and after flares. We use occlusion maps and statistical analysis to show that the CNN pays attention to regions between the opposite polarities from ARs and the CNN output is dominantly decided by the total unsigned line-of-sight flux of ARs. Using synthetic bipole magnetograms, we find spurious dependencies of the CNN output on magnetogram dimensions for a given bipole size. Our results suggest that it is important to use CNN designs that eliminate such artifacts in CNN applications for processing magnetograms and, in general, solar image data.
description: 16 pages, 13 figures, accepted for publication in ApJ
BENEFICIOS ECONÓMICOS ASOCIADOS CON EL CONTROL DE INVASIONES DE UÑA DE GATO EN EL PASTIZAL MEDIANO ABIERTO DE CANANEA, SONORA, MÉXICO.
Creators: name: Ibarra Flores, F.A.
name: Martín Rivera, S.
name: Moreno Medina, M.
name: Denogean Ballesteros, F.G.
name: Martinez Duran, Ana B.
name: Retes López, R.
name: De La Toba García, V.M.
name: Aguilar Valdes, Alfredo
name: Ibarra Flores, F.A.
name: Martín Rivera, S.
name: Moreno Medina, M.
name: Denogean Ballesteros, F.G.
name: Martinez Duran, Ana B.
name: Retes López, R.
name: De La Toba García, V.M.
name: Aguilar Valdes, Alfredo
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: tebuthiuron
subject: Open Grasslands
subject: catclaw mimosa
subject: profitability.

description: Large areas of Short Grasslands in Northern Sonora, Mexico show severe problems of catclaw mimosa invasion, which limits productivity potential and interfere with grassland utilization. This study was conducted in Cananea, Sonora to evaluate several doses of tebuthiuron herbicide to control brush species and measure the effects in forage production and associated economic benefits. We evaluate vegetation responses with tebuthiurón application in doses of 0, 0.5, 1.0, and 1.5 kg of a.i./ha, applied by triplicate in 20 by 30 m plots. A completely randomized block design was used and information was analyzed by ANOVA (P≤0.05). The herbicide controlled 31, 65.5 and 95.5% of shrubs with 0.5, 1.0 and 1.5 kg of a.i./ha with forage production increases of 147.6, 250.4 and 424.5%, respectively, as compared to untreated areas. Cumulative total ten year dry forage production was 2.45, 5.10, 7.70 and 12.18 ton/ha in plots treated with 0, 0.5, 1.0, and 1.5 kg/ha, with a forage production cost of $ 0.46, 0.37 y 0.27 pesos per additional kilogram of dry produced forage, respectively. We conclude that deteriorated grasslands invaded with shrubs have low production potential. From the financial view point it is economically profitable to apply tebuthiuron herbicide at rates of 0.5 to 1.5 kg a.i./ha to reduce high infestations of catclaw mimosa invasion on grasslands.
Supplementary document for Sub-wavelength scale characterization of on-chip coupling mirrors - 6640536.pdf
Creators: name: Tkachuk, Vladislav
name: Korterik, J
name: Chang, Lantian
name: Offerhaus, Herman
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: This supplement provides the procedure for separating the polarizations during the scanning procedure.
BASES PARA EL ANÁLISIS DEL ENTORNO DE LA APICULTURA EN NAYARIT.
Creators: name: Ulloa Castañeda, Ricardo R.
name: Meza Ramos, Eduardo
name: Anzaldo Velázquez, José E.
name: Aguirre Ortega, Jorge
name: Martínez Virgen, Maricela
name: Ulloa Castañeda, Ricardo R.
name: Meza Ramos, Eduardo
name: Anzaldo Velázquez, José E.
name: Aguirre Ortega, Jorge
name: Martínez Virgen, Maricela
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Beekeeping
subject: Nayarit
subject: analysis environment
subject: conditions and strategies.

description: Honey has sweetened mankind‘s food for millennia. America is not elusive to this concept and even before the conquest; honey was already produced in this continent. In Mexico, due essentially that its territory has great biodiversity, the production is widespread. Furthermore, it is recognized that beekeeping is called alternative production due to the wide production possibilities range. However, as all productive practices, it has variants in time which must be analyzed to define the best development option. For this purpose, the apiculture environment analysis is made in the State of Nayarit. The concept covers the definition of producers conditions in the State (internal conditions), and other States of the country, the world (external conditions) of the same industry related to the honey and its possible forms of production around bees (organic honey, propolis, Royal Jelly, wax, apitherapy, pollination and different industrial products), the final objective is to take decisions
Understanding emotional loss and how self-esteem is rebuilt by executives who have suffered involuntary job loss
Creators: name: Ciceri, Peter
Publisher: name: University of British Columbia
Year: 2010

description: This narrative research study was inspired by a desire to understand the emotional meaning of involuntary job loss, and how people can successfully rebuild their self-esteem. For this study, the participants are senior business executives, whose identity is embedded in their career. There have been volumes of research on job loss, including the stress impact, loss of self-esteem and coping strategies, to name a few. However, there has been a lack of research that provides an understanding of those personal factors, from inside their world that lifts people from the ruminations and spiral of loss to a renewal of positive self-esteem. Narrative research methodology was used because of its ability to get to the heart of the research question - through the stories of the participants. It allowed them to give voice to their unique experience, and it provided data that was rich in content and meaning. The use of five individual narratives provided an in-depth multi-focal perspective and the subsequent group-based narrative analysis provided the power of group dynamics an opportunity to further elevate the data by allowing the participants, these strangers bound together by common experience, an opportunity to give individual voice to their stories, while finding deeper harmony together. This research attempts to track their journey from loss to self-renewal. It seeks to identify the common experiences and emotional themes to provide meaningful insights to help any person facing the challenge of rebuilding self-worth and identity following the trauma of loss. In essence, this research deduces that the successful process or stages of loss have a purpose - to provide that person with a vehicle for self-acceptance, allowing them to see and find their sense of self and the intrinsic value they possess. This self-knowledge is a prerequisite for positive growth and it provides the foundation from which their reconstructed and true self-esteem is built.
Interdisciplinary Analysis of Opisthothelae Silk
Creators: name: Metting van Rijn, Marnik
Publisher: name: K+S GYMNASIUM RÄMIBÜHL Maturitätsarbeit
Year: 2017

description: Opisthothelae is a suborder of the order of spiders (Araneae) and consists of the two infraordersMygalomorphae and Araneomorphae. Whereas Araneomorphae are “normal” spiders andMygalomorphae include but are not limited to Tarantulas (Theraphosidae). This essayelaborates the different usage of spider silk by Mygalomorphae and Araneomorphae. In orderto understand the specific silk better the physical character and chemical composition of thesilk is analysed. This knowledge was then used at the comparison of the two infraorders. Basedon literature for the Araneomorphae and based on observations of several Mygalomorphaewhich I keep as pets at home I identified differences and equalities. Equalities exist in usage forthe production of cocoons, swathing the caught prey and creating sperm webs. Differencesoccur in the usage of silk as a hunting method and building shelter. Based on my observationsof my tarantulas the silk has to differ due to different usage. The difference occurs in physicalcharacteristics and chemical composition of the silk.
title: Ad-City : ein Wohnbau der Energien der Stadt für sich nutzbar macht : an energy harvesting residential building
Creators: name: Masching, Alexander
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Wohnbau
subject: Wien
subject: Schwedenplatz
subject: Morzinplatz
subject: Energiegewinnung
subject: Werbeeinnahmen
subject: Residential Building
subject: Vienna
subject: Schwedenplatz
subject: Morzinplatz
subject: Energy Harvest
subject: Ad-revenue

description: Wohnbau im urbanen Raum steht vor einer großen Herausforderung. Es gibt einen starken Zuzug in Städte. Dadurch steigt die Nachfrage nach Wohnraum in urbanen Lagen stark an, was wiederum eine Auswirkung auf den Mietpreis hat. Die Folge ist eine Verdrängung von einkommensschwachen Schichten an die infrastrukturschwächere Peripherie. So geht die soziale Durchmischung, welche als Merkmal von Urbanität gesehen werden kann, verloren. Diese Problemstellung ist der Ausgangspunkt dieser Arbeit, die neue Ansätze in Umgang mit dieser Fragestellung testen will. Die übliche Lösung ist über Einsparungen in den Quatratmetern die Wohnungen leistbarer zu machen. Gesucht ist der kleinst-mögliche Lebensraum für Menschen. Diese Spardoktrin wird so zu einem bestimmenden Faktor im Wohnbau. Aber was, wenn man diese Spardoktrin in Frage stellt? Was, wenn statt des Spargedankens die Selbstfinanzierung eine relevante Größe wird? Kann ein Gebäude so entworfen werden, dass es sich weitgehend selbst finanziert? Das Wohnhaus als „Perpetuum Mobile“, das Geld und Energie generiert und zugleich den BewohnerInnen die Möglichkeit gibt hochwertig zu Leben. Dieser Ansatz wird auf einem zentral gelegener Bauplatz in Wien, unter Anwendung verschiedener Systeme zu einem gesamtheitlichen Wohnbau zusammengefasst. So sollen neue Möglichkeiten im Umgang mit wirtschaftsbedingter, urbaner Segregation illustriert werden.
description: Due to more and more people moving to citys, urban residential building is in crisis. The increase of inhabitants causes realestate prices to rise, as they are regulated by demand. This high demand puts poor groups under pressure and forces them to delocate to the outskirts, as appartments are much more affordable there. The current solution is to decrease flatsizes, making living more affordable for the lower class. But what if we turned this logic around? What if we turned the „make-it-cheap“-doctrine into a „make-it-finance-it-by-itself“-doctrine? Could we find a way to produce self-financing residential buildings? Like an „perpetuum mobile“ the builing would make money an produce energy to support its inhabitants. Using a building site located in the center of Vienna, this Project combines different systems to an new kind of residential building. This illustrates the idea and is the starting point for a dicusion on new ways to deal with the problem of economically driven urban segregetion.
Volterra-Choquet nonlinear operators
Creators: name: Gal, Sorin G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 47H30 (Primary), 28A12, 28A25 (Secondary)

description: In this paper we study to what extend some properties of the classical linear Volterra operators could be transferred to the nonlinear Volterra-Choquet operators, obtained by replacing the classical linear integral with respect to the Lebesgue measure, by the nonlinear Choquet integral with respect to a nonadditive set function. Compactness, Lipschitz and cyclicity properties are studied.
description: 17 pages
Radio Continuum Emission in Polar-Ring Galaxies
Creators: name: Cox, A. L.
name: Sparke, L. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the Very Large Array aperture synthesis telescope to conduct a radio continuum survey of polar-ring galaxies, at 20cm and 6cm. Forty objects were observed at 20cm with 5" resolution. Twenty (50%) of the program sources were detected at 20cm, down to our 5-sigma limit of 0.5 mJy/beam. This detection rate is similar to those in surveys with comparable sensitivity for early-type galaxies without polar rings. Sixteen of the objects we detected at 20cm were also observed at 6cm. We show radio continuum maps for the five objects in our sample that have noticeably extended emission. Our spatial resolution was sufficient to distinguish between emission originating in the host galaxy from that in the polar ring. The radio morphology of the extended sources, as well as the radio to far-infrared flux ratio and the radio spectral indices of our detected sources, indicate that star formation, not nuclear activity, is the dominant source of the radio continuum emission in polar-ring galaxies. However, the implied star-formation rates are modest, and only one of our sample galaxies will consume its supply of cool gas within 500 Myr.
description: 21 pages, 7 figures. Produced with AASTeX 5.2 To appear in November 2004 Astronomical Journal
CARDEC-03 - Time and Cost Form
Creators: name: Moro, Bruna Lorena Pereira
name: Signori, Cácia
name: Freitas, Raiza
name: Pontes, Laura
name: Tathiane Larissa Lenzi
name: TEDESCO, Tamara Kerber
name: Raggio, Daniela
name: Braga, Mariana Minatel
name: Ekstrand, Kim
name: CENCI, Maximiliano Sergio
name: Mendes, Fausto Medeiros
Publisher: name: figshare
Year: 2020
Subjects: subject: 111712 Health Promotion
subject: FOS: Health sciences

description: The form used to collect the time spent and materials used on patient care during all appointments of the study CARDEC-03.
EVALUACIÓN ECONÓMICA DEL APROVECHAMIENTO FORESTAL PERSISTENTE EN COMUNIDAD SAN MIGUEL TOPILEJO, DELEGACIÓN TLALPAN, DISTRITO FEDERAL
Creators: name: Arreguín Sámano, Moisés
name: González Elías, J. Martín
name: Delgado Hernández, José Luis
name: Carrillo Espinosa, Guillermo
name: Arreguín Sámano, Moisés
name: González Elías, J. Martín
name: Delgado Hernández, José Luis
name: Carrillo Espinosa, Guillermo
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: economic costs
subject: monetary benefits
subject: profitability indicators
subject: sensitivity analysis

description: The Persistent timber-yielding forestry in the San Miguel Topilejo community establishes a use of 10 years in its total forested area. The main objective of this research is to evaluate financially the timber exploitation in the study area. For this purpose, there were evaluated the economic feasibility, estimated the economic costs of their use and the monetary benefits of timber extraction. Financial indicators Net Present Value (NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (B/C) and Net Benefit-Investment (K/N) are determined using a Microsoft Excel spreadsheet, the program analysis projects (ANPRO) and the Statistical Analysis System package SAS. The total timber possibility of Pinus spp (30,472.950 m3) and Quercus spp (557.849 m3) were obtained from its program of forest management and PROBOSQUE gave the monetary value of their products. The studied variables were shooting down, chunking and wheel costs (primary 120.00 pesos/m3, secondary 80.00 pesos/m3 and firewood 50.00 pesos/m3), operating costs (40.00 technical services pesos/m3, elaboration of the program of management 100.00 pesos/ha, 30.00 representation expenses pesos/m3, Documentador 10.00 pesos/m3, protection 80.00 pesos/m3 and reforestation 150.00 pesos/m3) and income from sale of products of Pinus spp. (primary 1200.00 pesos/m3, secondary 600.00 pesos/m3 and firewood or firewood´s shank 100.00 pesos/m3) and Quercus spp. (primary 700.00 pesos/m3, secondary 500.00 pesos/m3 and firewood or firewood´s shank 100.00 pesos/m3). The results were going NPV = 7´744, 142.00 pesos; TIR = 123.0%; R B/C = 2.2 pesos and N/K = 4.3. To perform the analysis of sensitivity of total costs and total income, the project stand increased in the first of 20%, while the seconds stand a decrease of 20%. However, the project shows viability.
CARDEC-03 - Assent Form in Portuguese
Creators: name: Moro, Bruna Lorena Pereira
name: Signori, Cácia
name: Freitas, Raiza
name: Pontes, Laura
name: Tathiane Larissa Lenzi
name: Tedesco, Tamara Kerber
name: Raggio, Daniela
name: Braga, Mariana Minatel
name: Ekstrand, Kim
name: CENCI, Maximiliano Sergio
name: Mendes, Fausto Medeiros
Publisher: name: figshare
Year: 2020
Subjects: Health Care

description: Assent Form signed by the children of the clinical study CARies DEtection in Children nº 3 (CARDEC-03), written in Portuguese.
Brane solutions of a spherical sigma model in six dimensions
Creators: name: Lee, Hyun Min
name: Papazoglou, Antonios
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore solutions of six dimensional gravity coupled to a non-linear sigma model, in the presence of co-dimension two branes. We investigate the compactifications induced by a spherical scalar manifold and analyze the conditions under which they are of finite volume and singularity free. We discuss the issue of single-valuedness of the scalar fields and provide some special embedding of the scalar manifold to the internal space which solves this problem. These brane solutions furnish some self-tuning features, however they do not provide a satisfactory explanation of the vanishing of the effective four dimensional cosmological constant. We discuss the properties of this model in relation with the self-tuning example based on a hyperbolic sigma model.
description: 16 pages, 7 figures, references added, typos corrected, journal version
EVALUACIÓN DEL DESEMPEÑO MUNICIPAL PARA EL DESARROLLO RURAL SUSTENTABLE
Creators: name: Aranda Gutiérrez, Heriberto
name: Callejas Juarez, Nicolas
name: Esparza Vela, Mario Edgar
name: Becerra Reza, Maria Nieves
name: De La Fuente Martínez, Martha Leticia
name: Espinoza Prieto, José Roberto
name: Aranda Gutiérrez, Heriberto
name: Callejas Juarez, Nicolas
name: Esparza Vela, Mario Edgar
name: Becerra Reza, Maria Nieves
name: De La Fuente Martínez, Martha Leticia
name: Espinoza Prieto, José Roberto
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Social Perceptions
subject: Public Policy
subject: Climatic Change.

description: This document presents a proposal with a dual purpose: first, assess residents' perceptions related to the progress made by the council of a rural municipality of the state of Chihuahua; second, to investigate how people perceive the impacts in rural activities due to the climate change and weather events that occurred in 2011 and strategies to address it. Also presents the background that led to the proposal evaluation, reference frameworks and methodology for its application focusing on the target population perception. Based on the results obtained, recommendations could be immediately useful for municipal public policy adjustments, in order to achieve real improvement and enhance the perception of the inhabitants of the municipality looking for a sustainable development.
ANÁLISIS DE RENTABILIDAD DEL CULTIVO DE NOGAL PECANERO EN LA COSTA DE HERMOSILLO
Creators: name: Retes López, Rafael
name: Nasaimea Palafox, Ariel Ramsés
name: Moreno Medina, Salomón
name: Denogean Ballesteros, Francisco G.
name: Martin Rivera, Martha H.
name: Retes López, Rafael
name: Nasaimea Palafox, Ariel Ramsés
name: Moreno Medina, Salomón
name: Denogean Ballesteros, Francisco G.
name: Martin Rivera, Martha H.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: walnut
subject: profitability
subject: cost-benefit
subject: cost
subject: balance.

description: The major walnut producing area is located south of the United States and northern Mexico these two countries being the major world exporters to Mexico production is obtained in the months of October through December. Chihuahua occupies about 50% of national production and 60% of the area planted with walnut and Sonora ranks third in acreage. Until 2002 the total area of cultivation remained stable at 50,000 hectares, roughly between the years 2000 and 2004 the average productivity increased from 1.22 to 1.59 t / ha and from 2005 to 2008 under a 1.23. During the period from 2003 to 2010 there was an increase in planted area being one of the factors that encourage the expansion of cultivation is the international market, with about 70% of domestic production is exported mainly to the U.S. and the China last 5 years. The nut is growing the fastest growing fruit in Sonora, from 2009 to 2010, the production volume grew nut of 7,867 tons to 15,500 t., the production value soared from 271.3 million to 802.3 million pesos in pesos. In the current pecan walnut acreage in Sonora to 2009 occupied the Coast produces 76% and 78% of total production. We analyzed the profitability of walnut cultivation of the Coast information with reference to individual producers and official sources that have obtained working capital throughout the cycle was $ 53.021 pesos, a working capital of $ 48.349, Benefit-Cost Ratio of 1.34, ie, for every dollar invested recover 0.34 pesos while the balance point was 1.48 t for the full payment of the investment as well as interest and 1.39 t only for the payment of direct costs. With these indicators, the cultivation of walnut for the Coast is a good investment opportunity for agribusiness.
Confinement and Liberation
Creators: name: Polyakov, A. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This is a review of topics which haunted me for the last 40 years, starting with spontaneous symmetry breaking and ending with gauge/string/space-time correspondence. While the first part of this article is mostly historical, the second contains some comments, opinions and conjectures which are new. This work is prepared for the volume " Fifty Years of the Yang- Mills Theory"
description: 20 pages
IMPLEMENTACIÓN DE UN SISTEMA DE PLANEACIÓN ESTRATÉGICA, BALANCE SCORECARD EN LA S.P.R.: NUEVA ALIANZA DE AGRICULTORES, FRANCISCO I. MADERO, COAHUILA.
Creators: name: Alvarado Martinez, Luis Felipe
name: Aguilar Valdes, Alfredo
name: Cabral Martell, Agustin
name: Alvarado Martinez, Tomas Everardo
name: De La Cruz Álvarez, Isaías
name: Alvarado Martinez, Luis Felipe
name: Aguilar Valdes, Alfredo
name: Cabral Martell, Agustin
name: Alvarado Martinez, Tomas Everardo
name: De La Cruz Álvarez, Isaías
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Management control system
subject: SWOT
subject: Balanced Scorecard
subject: agricultural production
subject: indicators

description: Agricultural enterprises in Mexico have traditionally lacked administrative technical expertise, have been limited to use the minimum tools necessary to meet their fiscal commitments, and have neglected innovative techniques that would allow them to increase the agribusiness' profits. In this setting, the Balanced Scorecard applied to the S.P.R., R. L. de C. V: Nueva Alianza de Agricultores in the municipality of Francisco I. Madero, Coahuila is intended to establish a culture of Strategic Planning in agricultural enterprises and thus contribute to the goal of increasing profits for the agribusinesses. From this perspective, this study intends to assist the proposal through the use of Strategic Analysis. First using a SWOT analysis to address the diagnostics; the result of which permits the generation of a strategic plan for the company, and finally, the design of the Balanced Scorecard proposal.
Nonlinear optical effects in a nucleus
Creators: name: Li, Tao
name: Wang, Xu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Intense laser technologies generate light with unprecedented and growing intensities. The possibility emerges that a nucleus responds nonlinearly to an intense light field, pointing to a yet little explored research area of nuclear nonlinear optics. We consider two-photon and three-photon absorption (with subsequent disintegration) processes of the deuteron, the simplest and the most fundamental nontrivial nucleus, as prototypes of nuclear nonlinear optical effects. Quantitative calculations are performed on these processes and novel observable effects are predicted.
Statistical Theory and Methods for Comparing Distributions
Creators: name: Ilmun Kim
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: Statistics
subject: FOS: Mathematics

description: With the recent advancement of data collection techniques, there has been an explosive growth in the sizeand complex of data sets in many application domains. The rise of such unprecedented data has posed newchallenges as well as new opportunities to researchers in statistics and data science. Traditional methods,tailored to static and low-dimensional data, perform poorly or are no longer applicable for modern high dimensionaldata with complex structures. Moreover, classical asymptotic theory easily breaks down under non-traditional settings where numerous parameters can interact in dynamic ways. Motivated by these new challenges, this dissertation aims to develop novel methods and technical tools suitable for modern high dimensional data with particular emphasis on three types of testing problems: (i) one-sample testing, (ii)two-sample testing and (iii) independence testing.One of the major contributions of this thesis is to introduce a exible two-sample testing framework that can leverage any existing classi?fication or regression method. By taking advantage of state-of-the-art algorithms in machine learning, the proposed method can efficiently handle different types of variables and various structures in high-dimensional data with competitive power under a variety of practical scenarios. To justify our approach, we provide rigorous theoretical and empirical analysis of their performance. With a speci?fic focus on Fisher's linear discriminant analysis, we prove more sophisticated results including minimaxoptimality under common regularity conditions. In addition to supervised learning approaches, we also contribute to the literature by proposing goodness-of-?t tests for high-dimensional multinomials as well as multivariate generalizations of classical rank-based tests.Another theme of this dissertation is concerned with permutation tests. Although the permutationapproach is standard in practical implementations of two-sample and independence testing, its theoreticalproperties, especially power, have not been explored beyond simple cases. A major challenge of analyzing thepermutation test is that it depends on a random critical value which is a function of observations. We studyhow to overcome this challenge and demonstrate that the permutation test has competitive power propertiesfor many interesting problems under non-traditional settings. In particular we use the minimax perspectiveto evaluate the performance of a test and show that the permutation test is optimal for the problems whereminimax lower bounds are available.
Right handed currents and FSI phases in B^0 --> ϕK^{*0}
Creators: name: Alvarez, Ezequiel
name: Epele, Luis N.
name: Dumm, Daniel Gomez
name: Szynkman, Alejandro
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider possible effects of New Physics (NP) on the angular distributions of the decay B^0 --> ϕK^{*0}, showing how these effects depend on the nature of nonstandard interactions. In a general framework based on factorization, we show that triple products can be used to probe the chirality of NP currents. In this analysis we take into account the presence of non-vanishing strong phases, which is motivated by recent experimental evidence. It is seen that the observability of right-handed NP is strongly dependent on the relation between the relative magnitude of these phases and the ratio of Standard Model and NP scales. As an application we estimate the expected values of relevant observables in a particular Left Right Symmetric Model.
description: 16 pages, no figures. Comments and references added, conclusions unchanged. Final version to appear in Phys. Rev. D