bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prony’s Method with Reduced Sampling - Numerical Aspects
Authors: Zygarlicki Jarosław , Mroczka Janusz 
Published: August 2014

Abstract
This paper presents a new modification of the least-squares Prony’s method with reduced sampling, which allows for a significant reduction in the number of the analysed signal samples collected per unit time. The specific combination of non-uniform sampling with Prony’s method enables sampling of the analysed signals at virtually any average frequency, regardless of the Nyquist frequency, maintaining high accuracy in parameter estimation of sinusoidal signal components. This property allows using the method in measuring devices, such as for electric power quality testing equipped with low power signal processors, which in turn contributes to reducing complexity of these devices. This paper presents research on a method for selecting a sampling frequency and an analysis window length for the presented method, which provide maximum estimation accuracy for Prony’s model component parameters. This paper presents simulation tests performed in terms of the proposed method application for analysis of harmonics and interharmonics in electric power signals. Furthermore, the paper provides sensitivity analysis of the method, in terms of common interferences occurring in the actual measurement systems.
The Land’s Susceptibility, Due to Atmospheric Precipitations, Within the Catchment Area of Câlnău
Authors: (Oprea) Constantin Dana Maria , Cîrciumaru Emil , Vătămanu Victor Viorel 
Published: August 2014

Abstract
The climatic factors, generally, and the precipitation amounts recorded, especially, constitute some of the factors which condition the development and intensity of actual geomorphologic processes. One of the most employed climatic parameters for determining the land’s susceptibility to atmospheric precipitations, with real and concrete applications into the dynamic geomorphology, is the Angot factor.
The precipitations represent a crucial meteorological element in initiating, sustaining and reactivating some geomorphologic processes, acting as a modelling agent for every type of landscape. This influence can be highlighted by quantifying the values of some characteristic variables (length, frequency and intensity), as well as temporally confining individual and successive sequences, which present a certain degree of susceptibility.
The general objective of this research, through the analysis of precipitations and the Angot parameter, is to identify, on one hand, the months, seasons or years with a very high or very low susceptibility to the occurrence of bank erosion phenomena, and on the other, to examine the value variations of this parameter across the year. The purpose is to recognize a cumulative of pluviometric conditions which could contribute to inducing, in general, the modelling processes.
The study of land’s susceptibility to atmospheric precipitations was conducted within the morpho-hydrographic drainage system of Câlnău.
Climate Change and Anomalies Asociated in the Republic of Moldova
Authors: Nedealcov Maria 
Published: August 2014

Abstract
In the Republic of Moldova, regardless the limited area, regional climate change represents one of the major threats for sustainable development and is one of the biggest environmental problems, with negative consequences for the national economy. Displacement function analysis of the climate rules distribution which is characterizing mean annual temperature at different times in the Republic of Moldova shows that the last decade of the twentieth century (1989-1999) was the warmest decade of the century. At the same time, the first decade (2000-2012) of XXI century is the warmest decade of instrumental observations series (1887-2013). Measurement of the extreme values modification in the Moldova’s climate evolution indicates that absolute maximum of temperatures and deficit (excess) of precipitation have a regular manifestation on the last period (2000-2012).
Studies Regarding the Safety in Operation of Ezer Reservoir
Authors: Balan Isabela , Tutunaru Irina Dana , Pricop Claudiu , Balan Ioan 
Published: August 2014

Abstract
The dam of the non-permanent reservoir Ezer, located on Jijia river is an earth dam with a maximum height of 6.18 m, which provides a global retention to the canopy of 10.330 million cubic meters. The dam founded on weak, muddy soils suffered in the years 1989 and 1992 downstream slope failures of the fillings. It was found that hydrostatic levels were high in the piezometric wells and that consolidation of the foundation soil was reduced. This paper presents a brief history of the dam and aspects regarding the behaviour monitoring of Ezer non-permanent reservoir during the years 2000-2012.
Preliminary Assessments of the Relation: Precipitations – Water – Sediments with Regard to some Anthropic Accumulations in the River Basin of Bahlui
Authors: Ionuţ Minea , Dragoş Nica , Bogdan Boca 
Published: August 2014

Abstract
An important aspect of the statistical assessment of the correlation between precipitations - water and sediments is the way these parameters are assessed by means of statistical correlations of the type Q=f(Pp), R=f(Q) or R=f(Pp). Following the analysis of the three types of correlations the conclusion that water and sediment flows depend much on the quantity of water that falls may be reached. The accumulations however introduce some modifications of the water run-offs depending on the intended use. In order to carry out detailed analyses of some processes related to the evolution of channel bed or reservoirs silting, the equations may be extrapolated to the entire river basin
Roads Rehabilitation and Environment in Moldova: Some Legal and Normative Harmonization Aspects
Authors: Cocirta Petru , Vladicescu Viaceslav 
Published: August 2014

Abstract
This paper analyzes the environmental regulatory reforms of the Republic of Moldova to restore roads and problems over time. Goals and objectives are the analysis of the current situation on road rehabilitation and environmental assessments in this area, as well as issues that require in rehabilitation and maintenance of roads in the Republic of Moldova.Are described briefly: general aspects of road rehabilitation issues; legislation and environmental regulations in the road; differences between Moldova and procedures of the World Bank's environmental assessment in the construction and rehabilitation of roads; problem of national legislative and normative acts harmonization to international requirements.The paper discusses specific environmental to appear on completion of the rehabilitation of roads in the Republic of Moldova. In the final part of the paper presents the conclusions and some suggestions on how to facilitate the rehabilitation of roads in accordance with Agenda 21 of the country and European and international requirements.
Structure and tensile properties of polypropylene/carbon nanotubes composites prepared by melt extrusion
Authors: Liu Yanhui , Zuo Jicheng , Qin Jie , Li Chengwu 
Published: August 2014

Abstract
Polypropylene/carbon nanotubes (PP/CNTs) nancomposites were prepared with a single screw extruder by adding maleic anhydride-grafted poplypropylene (PP-g-MAH) as compatibilizer to polypropylene (PP) with different amounts of carbon nanotubes (CNTs) in the range of 0.1–0.7 wt.%. Structure and morphology of the prepared samples were examined by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), polarizing light microscopy (PLM) and X-ray diffraction (XRD). The results showed that PP spherulites decreased in size when CNTs were introduced into the polymer. Mechanical properties of the samples were also studied. Tensile tests showed that with increasing amount of CNTs the strain at break decreased whereas the Young’s modulus was improved of 16.41 % to 36.05 % and tensile strength of 36.67 % to 64.70 % compared to pristine PP. The SEM microphotographs showed that majority of the CNTs were dispersed individually and oriented along the shear flow direction.
Synthesis and characterization of a new type of electro-optic polymer without carbon main chains
Authors: Zhang Ying , Qiu Chengjun , Li You , Zhang Wenlong , Xuan Wang 
Published: August 2014

Abstract
A new type of electro-optic (EO) polymer is prepared in this work. The main chain of the EO polymer is made of polyphosphazenes, and the side chain consists of carbazole based nitro azobenzene. The principle and method of preparation are given and the characteristics of this material are studied in details. The polymer with an EO coefficient of 35 pm/V has fine stability and can be easily processed. It also shows photoconductivity due to the carbazole group. This polymer thin film is obtained through performance improvement. Terahertz (THz) wave can be detected using the device, which is made of the new polymer. Owing to its fascinating properties, this new type of EO polymer has the potential to be widely applied in photorefractive materials as well as for emission and detection of THz radiation.
Synthesis, characterization, DC-electrical conductivity and γ-ray effect on Ag1+, Y3+ double doped nano lithium manganates (LiMn2−2x
AgxYxO4) for rechargeable batteries
Authors: Abou-Sekkina Morsi , Saad Fawaz , El-Metwaly Fouad , Khedr Abdalla 
Published: August 2014

Abstract
Pristine lithium manganate (LiMn2O4) and Ag1+, Y3+ double doped nano lithium manganate [LiMn2−2x
AgxYxO4, (x = 0.025, 0.05)] spinels were synthesized via a coprecipitation method for rechargeable batteries applications. The synthesized LiMn1.9Ag0.05Y0.05O4 was exposed to different doses of γ-irradiation (10 and 30 kGy). The resulting spinel products were characterized by using thermogravimetric and differential thermal analysis (TG/DTA), X-ray diffraction (XRD), infrared (IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive analysis of X-rays (EDAX), electronic (UV-Vis) and electron spin resonance (ESR) spectra. LiMn2O4 exhibited a discharge capacity of 124 mAhg−1 while LiMn1.9Ag0.05Y0.05O4 had discharge capacities of 129 and 137 mAhg−1 for non irradiated and γ-irradiated (30 kGy) samples, respectively. The effects of the dopant cations and γ-irradiation on the discharge capacity and DC-electrical conductivity of some synthesized spinels were studied.
Ocular and Histologic Findings in a Series of Children With Infantile Pompe Disease Treated With Enzyme Replacement Therapy
Authors: Prakalapakorn S. Grace , Proia Alan D. , Yanovitch Tammy L. , DeArmey Stephanie , Mendelsohn Nancy J. , Aleck Kyrieckos A. , Kishnani Priya S. 
Published: August 2014

Purpose:
To report the ophthalmologic and histologic findings in a series of children with infantile Pompe disease treated with enzyme replacement therapy (ERT).

Methods:
Records of children with infantile Pompe disease treated with ERT who had at least one complete ophthalmic examination and the ocular histopathology of children with infantile Pompe disease who were treated with ERT were reviewed. The patients’ clinical history, including external ocular examination, ocular alignment and motility, dilated fundus examination, and cycloplegic refraction, was evaluated. A literature review was performed for ophthalmologic findings in infantile Pompe disease using PubMed.

Results:
The clinical findings of 13 children were included and the ocular histopathology of 3 children with infantile Pompe disease who were treated with ERT were reviewed. Forty-six percent (6 of 13) had bilateral ptosis, 23% (3 of 13) had strabismus, 62% (8 of 13) had myopia, and 69% (9 of 13) had astigmatism. On histologic examination, there was vacuolar myopathy affecting the extraocular muscles, ciliary body, and iris smooth muscle and glycogen accumulation in corneal endothelial, lens epithelium, and retinal ganglion cells, and within lysosomes of scleral fibroblasts.

Conclusions:
It is important that ophthalmic providers are aware of the high prevalence of myopia, astigmatism, and ptosis in children with infantile Pompe disease treated with ERT because they are potentially amblyogenic but treatable factors.

[J Pediatr Ophthalmol Strabismus 2014;51(6):355–359.]
The art of consultation
Authors: Bhangoo Kulwant S. 
Published: August 2014

ABSTRACTSophisticated marketing and practice-enhancing strategies can help bring patients to a surgeon’s practice. However, the ability to retain these patients and also convert the consultations into surgical procedures depends on the art of consultation. This very important aspect of clinical practice is seldom taught in the medical school. In this paper, the author discusses many aspects of the art of consultation, which he has learned in his practice over the years.
Mineral Trioxide Aggregate Apexification in a Nonvital Immature Central Incisor Tooth using an Internal Matrix
Authors: Bodhwani Mohit A 
Published: August 2014

ABSTRACTApexification is a method to induce a calcified barrier in a root with an open apex or the continued apical development of an incomplete root in teeth with necrotic pulp. Mineral trioxide aggregate (MTA) has shown immense potential as an apical plug to induce apexification. It is better than the traditionally used calcium hydroxide as it completes the procedure more quickly and effectively. The following case report stresses on the need of an internal matrix to avoid unwanted extrusion of MTA in the periapical tissues. The internal matrix used in this case report is calcium hydroxide.How to cite this articleBodhwani MA, Shenoy VU, Sumanthini MV. Mineral Trioxide Aggregate Apexification in a Nonvital Immature Central Incisor Tooth using an Internal Matrix. J Contemp Dent 2014;4(2):113-117.
Equality from a Human Point of View
Authors: Lebron Christopher 
Published: August 2014

Abstract
Racial inequality remains a persistent feature of American life. Despite the prominent place the idea of equality holds in the tradition of political philosophy, we remain without an effective conception appropriate for the experience of racial inequality. In this paper, I re-frame debates around equality and egalitarianism by reflecting on some of James Baldwin's more strident arguments in his 1965 debate with William Buckley. I suggest he presses two complaints that are fundamental to racial inequality: the complaints of democratic distance and of disaffection. I then argue that while contemporary egalitarian theorists such as G. A. Cohen, Ronald Dworkin, Richard Arneson, and Elizabeth Anderson all claim to have isolated in their work a preferred conception of equality, they are unable to respond to Baldwin's complaints, thus unable to effectively address the experience of racial inequality. I then leverage Bernard Williams's distinction between a technological view of equality and a human view alongside his writing on imagination to offer a framework for meeting the moral demands that arise from taking the experience of racial inequality as fundamental to considerations over social and political equality.
O sofrimento psíquico e as novas modalidades de relação entre o normal e o patológico: uma discussão a partir da perspectiva freudiana sobre o caráter do psicopatológico
Authors: Pinheiro Clara Virginia De Queiroz , Aguiar Isabella Maria Augusto , Mendes Layza Castelo Branco 
Published: August 2014

No presente estudo partimos da tese de Ehrenberg, na qual é firmada a idéia de que a atividade clínica, nos dias atuais se estende à totalidade do sofrimento mental, não se restringindo mais aos cuidados com a dimensão patológica da experiência humana. Trata-se da constituição do campo da saúde mental, âmbito em que a psicopatologia se torna um domínio menor. Na medida em que a prática clínica não se especifica mais pelo caráter patológico de seu objeto, pomos em questão as relações entre o normal e o patológico subjacente à atenção em saúde mental. Dessa forma, iniciamos nossa investigação com o exame dos conceitos do normal e do patológico que marcaram a emergência da atividade clínica. Em seguida, abordamos a psicopatologia freudiana com o objetivo de ressaltar a especificidade do fenômeno psicopatológico em relação a outros tipos de sofrimento humano. Por fim, à luz das formulações freudianas acerca da diferença entre inibição e sintoma, pressupomos a identidade conceitual entre sofrimento psíquico e inibição, analisando as mudanças das relações entre o normal e o patológico que estão por trás das diversas modalidades de sofrimento psíquico adotadas como objeto clínico. Palavras-chave: sofrimento psíquico; normal e patológico; Freud; Ehrenberg; saúde mental.
Uma análise do modelo de explicação no behaviorismo radical: o estatuto do comportamento e a relação de dependência entre eventos
Authors: Leão Monalisa de Fátima Freitas Carneiro , Laurenti Carolina 
Published: August 2014

O objetivo deste artigo é elucidar algumas características do modelo de explicação do comportamento proposto pelo Behaviorismo Radical. Para tanto, abordamos dois aspectos: (1) a delimitação do campo explicativo, e (2) o modelo explicativo no contexto da filosofia da ciência. Com relação ao primeiro ponto, examinamos o estatuto do comportamento na explicação behaviorista radical contrastando-o com duas explicações tradicionais do comportamento: a mentalista e a fisicalista. Diferente destas últimas explicações, o Behaviorismo Radical defende o comportamento como um objeto de estudo autônomo. No contexto da filosofia da ciência, examinamos, primeiramente, algumas concepções tradicionais de relação de dependência entre eventos, como a conexão necessária e a metáfora da cadeia. Em seguida, discutimos como o modelo de explicação behaviorista radical parece ser incompatível com tais concepções. Concluímos que o Behaviorismo Radical explica o comportamento buscando redes de interdependência probabilística entre estímulos (antecedentes e consequentes) e respostas, levando em consideração a importância da história nesse processo. Palavras-chave: behaviorismo radical; explicação do comportamento; autonomia do comportamento; relações funcionais; explicação histórica.
Efeitos do tamanho da classe na manutenção de relações de equivalência em um delineamento intra-grupo
Authors: Haydu Verônica Bender , Omote Leila Cristina Ferreira , Vicente Priscila , Aggio Natalia Maria , Paula Juliana Barboza Caetano de 
Published: August 2014

Assim como a formação de classes de equivalência, a manutenção destas foi afetada por diversas variáveis experimentais. O presente estudo visou analisar os efeitos do tamanho das classes sobre a formação e a manutenção de classes de estímulos equivalentes com um delineamento intra-grupo. O procedimento de ensino de escolha-de-acordo-com-modelo foi utilizado para ensinar a 21 estudantes universitários três conjuntos de três classes de estímulos equivalentes compostas por três, quatro e cinco estímulos. A sequência de ensino das classes de diferentes tamanhos foi aleatorizada para controlar o efeito da ordem. Observou-se que essa variável não afetou os resultados. Todos os 21 participantes apresentaram respostas de acordo com as classes treinadas em um Teste Misto realizado depois da aquisição das relações condicionais. Seis semanas após o Teste Misto, a manutenção das relações de equivalência foi testada. Foi observado que 3, 6 e 8 participantes continuaram apresentando porcentagens de acerto acima de 90% no Teste de Manutenção, quando as classes eram compostas por três, quatro e cinco estímulos, respectivamente. Pode-se concluir que o tamanho das classes não esteve relacionado à formação delas, mas afetou a manutenção das mesmas. Palavras-chave: discriminação condicional; equivalência de estímulos; escolha-de-acordo-com-modelo; estudantes universitários; estabilidade; tamanho de classes.
Notas sobre a dinâmica dos impulsos em Nietzsche
Authors: Machado Bruno Martins 
Published: August 2014

O presente artigo tem como propósito evidenciar o dinamismo dos impulsos de acordo com o perspectivismo nietzscheano. Enfatizamos, sobretudo, o modo como os impulsos são apresentados por Friedrich Nietzsche como peças estruturantes para a moral e para a vida. Para tanto, exploramos como a relação entre os impulsos se apóia sobre a doutrina da vontade de poder. Entendemos que há um ganho importante ao evidenciarmos essa leitura, pois ela fornece instrumentos críticos seja para análises da moral, seja para análises do próprio homem. Para empreender essa proposta, utilizamos textos do próprio Nietzsche, com ênfase em obras publicadas durante sua vida; contudo não perdemos de vista a importância dos fragmentos póstumos. Também fizemos uso de alguns comentadores quando suas posições se mostraram relevantes para a compreensão desses escritos. Palavras-chaves: Nietzsche; impulsos; vontade de poder; perspectivismo; moral.
“Juntas chegaremos à perfeição”: representações sociais da anorexia no Orkut
Authors: Giacomozzi Andréia Isabel 
Published: August 2014

Este artigo discute a representação social da anorexia e a identidade social construída por grupos de jovens garotas que participam de comunidades pró-anorexia no Orkut. Selecionou-se aleatoriamente 42 respostas à questão: “quem sou eu”, proposta no início de cada página de membros de comunidades pró-anorexia do Orkut que se descrevem como sendo ou como tendo comportamentos anoréxicos, todos do sexo feminino. Na análise dos dados coletados, foi empregado o software Alceste (Análise Lexical por Contexto de um Conjunto de Segmentos de Texto). Percebeu-se uma representação social da anorexia como estilo de vida e não como doença, e outra da anorexia sendo uma “santa” ou “deusa”, marcando uma estranha ligação de amor e ódio entre as jovens e esta espécie de entidade superprotetora e poderosa. Além disso, observa-se que tais representações geram e sustentam a construção, pelo grupo, de uma identidade social da anoréxica como tendo uma moral e pureza mais elevada que os demais, acontecendo ainda um encorajamento e uma supervalorização de comportamentos anoréxicos e bulímicos, o que pode dificultar a adesão da jovem ao tratamento. Palavras-chave: representações socias; identidade social; anorexia; comunidades virtuais.
Escolha de parceiros heterossexuais: um estudo de proclamas de casamento
Authors: Otta Emma , Queiroz Renato Da Silva , Campos Lucila De Sousa , Da Silva Monika Weronika Dowbor , Silveira Mariana Telles 
Published: August 2014

Este artigo analisa, de uma perspectiva evolucionária e interdisciplinar, critérios de escolha de parceiros heterossexuais com base no fator idade. A pesquisa em que se fundamenta focaliza um total de 3.000 proclamas de casamento publicados no jornal Diário de Notícias de São Paulo, em setembro e outubro de 1996. A publicação de proclamas é um requisito formal para a legalização de uma união civil. Os homens, de modo geral, preferiram casar-se com parceiras mais novas que eles, aumentando essa diferença de idade à medida que se situavam em faixas etárias mais avançadas. A única exceção ficou por conta daqueles que se casaram muito jovens, com menos de 20 anos, que buscaram parceiras um pouco mais velhas que eles próprios. As mulheres jovens, por sua vez, casaram-se com homens mais velhos, mas esta tendência diminuiu com o aumento da idade, chegando a se inverter nas faixas de idade mais avançada. De forma geral, o padrão de preferência pela idade do parceiro contraria a regra da atração pelo similar, um dos princípios de seleção de parceiros melhor estabelecidos, mas é compatível, grosso modo, com os pressupostos da teoria evolucionária.Palavras-chave: seleção de parceiros, evolução, estratégias reprodutivas.