bluuebunny/crossref_metadata_2025 huggingface dataset:
Clinical and Therapeutic Challenges when Psychiatric Disorders Occur in Neurological Diseases: A Narrative Review
Authors: Callari Antonio , Miniati Mario
Published: April 2019

Background:

Over the course of the 20th century, neurology and psychiatry diverged and became two separate disciplines. Subsequently, the continuous progress of neurosciences confused their boundaries. However, with ‘the splitting’ and ‘the lumping’ approaches, relevant difficulties remain in targeting clinical and therapeutic goals, when psychiatric signs and symptoms co-occur with neurological diseases.

Objective:

The study summarize current evidence on psychiatric signs and symptoms comorbid with neurological diseases, with the aim to provide information on diagnostic problems and available therapeutic options.

Methods:

Finding from searches of publications on ‘PsycInfo’, ‘Medline’, and ‘Science Direct’, from January 1993 to December 2018 (25 years) is summarized in a narrative manner on six main neurological areas: congenital neurological illnesses (n=16), dementias (n=15), basal ganglia diseases (n=30), epilepsy (n=22), strokes/focal brain injuries (n=29), and neurological neoplastic/paraneoplastic diseases (n=15).

Results:

Clinical phenotypes of psychiatric syndromes are frequently described in neurological studies. Little evidence is provided on the most adequate therapeutic approaches.

Conclusion:

Psychiatric syndromes in comorbidity with neurological diseases are heterogeneous and severe; evidence-based treatments are scarce. Despite a model supporting an equal approach between psychiatric and neurological syndromes, psychiatric syndromes in neurological diseases have been described, to a relevant degree, as less important, leading to a hierarchical primate of the neurological manifestations, and thus, in our opinion, limiting the systematic studies on psychopharmacological treatments in this area.
Seismic Performance Evaluation of Existing RC Buildings Without Seismic Details. Comparison of Nonlinear Static Methods and IDA
Authors: Repapis Constantinos C.
Published: April 2019

The inelastic response of existing reinforced concrete (RC) buildings without seismic details is investigated, presenting the results from more than 1000 nonlinear analyses. The seismic performance is investigated for two buildings, a typical building form of the 60s and a typical form of the 80s. Both structures are designed according to the old Greek codes. These building forms are typical for that period for many Southern European countries. Buildings of the 60s do not have seismic details, while buildings of the 80s have elementary seismic details. The influence of masonry infill walls is also investigated for the building of the 60s. Static pushover and incremental dynamic analyses (IDA) for a set of 15 strong motion records are carried out for the three buildings, two bare and one infilled. The IDA predictions are compared with the results of pushover analysis and the seismic demand according to Capacity Spectrum Method (CSM) and N2 Method. The results from IDA show large dispersion on the response, available ductility capacity, behaviour factor and failure displacement, depending on the strong motion record. CSM and N2 predictions are enveloped by the nonlinear dynamic predictions, but have significant differences from the mean values. The better behaviour of the building of the 80s compared to buildings of the 60s is validated with both pushover and nonlinear dynamic analyses. Finally, both types of analysis show that fully infilled frames exhibit an improved behaviour compared to bare frames.
Ultrasonically Assisted Efficient and Green Protocol for the Synthesis of 4H-isoxazol-5-ones using Itaconic Acid as a Homogeneous and Reusable Organocatalyst
Authors: Kasar Sandeep B. , Thopate Shankar R.
Published: April 2019

Background:

Multicomponent reactions involve the simultaneous reaction of three or
more components which deliver the product that incorporates the elements of all starting materials. A
combination of multicomponent reaction and green solvents like water and the use of nonconventional
energy sources like microwave or ultrasonication are important features of ideal green synthesis.
Therefore, the design of a new multicomponent reaction and improvement of an already known
multicomponent reaction with a green procedure has attracted the attention of the scientific community.
Isoxazole derivatives are well known for their biological activities such as antifungal, analgesic,
antitumor, antioxidant, antimicrobial, COX-2 inhibitory, anti-inflammatory, antiviral, and antimycobacterial.

Objective:

To develop a green methodology for the synthesis of 4H-isoxazol-5-ones derivatives.

Results:

Itaconic acid was used as a green catalyst for the synthesis of 4H-isoxazol-5-ones derivatives
under conventional as well as ultrasound irradiation technique. Ultrasound irradiation condition requires
less time for the completion of the reaction and also the yields were better.

Methods:

We have reported Itaconic acid as a green homogenous organocatalyst under ultrasound
irradiation for the synthesis of 4H-isoxazol-5-ones derivatives.

Conclusion:

In conclusion, we have developed a green methodology for the synthesis of 4Hisoxazol-
5-ones derivatives. Itaconic acid is used as an organocatalyst which is biodegradable and
nonhazardous. Water is used as a green solvent. Ultrasonication is used as a non-conventional green
energy source. Ambient reaction conditions are used to carry out transformation for multicomponent
reaction. Metal-free, mineral acid-free synthesis are key features of the present protocol.
Investigation of CNC Milling Machining Parameters on Surface Roughness
Authors: Alyas Rasha Ramiz
Published: April 2019

Milling Machining is a widely accepted nontraditional machining technique used to produce parts with complex shapes and configurations. The material is removed in two stages roughing and finishing, the flat end cutter removed the unwanted part of material, then finished by end mill cutter. In milling technique, the role of machining factors such as cutting depth, spindle speed and feed has been studied using Taguchi technique to find its effectiveness on surface roughness.  Practical procedure is done by Taguchi Standard matrix. CNC milling is the most conventional process which is used for removing of material from workpiece to perform the needed shapes. The results and relations indicate that the rate of feed is very important factor for modeling surface roughness. The plot of S/N ratio shows that the optimum combination of the milling factors that gives the best value of surface accuracy. The best combination of milling factors has also been predicted to minimize the surface roughness.
Study the Effect of Welding Heat Input on the Microstructure, Hardness, and Impact Toughness of AISI 1015 Steel
Authors: Hamd Emad Kh. , Alwan Abbas Sh. , Irthiea Ihsan Khalaf
Published: April 2019

In the present study, MIG welding is carried out on low carbon steel type (AISI 1015) by using electrode ER308L of 1.5mm diameter with direct current straight polarity (DCSP). The joint geometry is of a single V-butt joint with one pass welding stroke for different plate thicknesses of 6, 8, and 10 mm. In welding experiments, AISI 1015 plates with dimensions of 200×100mm and edge angle of 60o from both sides are utilized. In this work, three main parameters related to MIG welding process are investigated, which are welding current, welding speed, heat input and plate thickness, and to achieve that three groups of plates are employed each one consists of three plates. The results indicate that increasing the weld heat input (through changing the current and voltage) leads to an increase in widmanstatten ferrite (WF), acicular ferrite (AF) and polygonal ferrite (PF) in FZ region, and a reduction in grain size. It is observed that the micro-hardness of welded AISI 1015 plate increases as the weld heat input decreases. As well as increasing the weld heat input results in an increase in the width of WM and HAZ and a reduction in the impact energy of the weld joint of AISI 1015 at WM region. Also, it is noted the corrosion rate of weld joint increases with increase of Icorr due to increasing in welding current (heat input), corrosion rate increased up to (0.126µm/yr.) with increasing of heat input up to (1.27 KJ/mm).
Experimental and Simulation investigations of Micro Flexible Deep Drawing Using Floating Ring Technique
Authors: Mahmood Zaid H. , Irthiea Ihsan K. , Abed Kadum A.
Published: April 2019

Micro metal forming has an application potential in different industrial fields. Flexible tool-assisted sheet metal forming at micro scale is among the forming techniques that have increasingly attracted wide attention of researchers. This forming process is a suitable technique for producing micro components because of its inexpensive process, high quality products and relatively high production rate. This study presents a novel micro deep drawing technique through using floating ring as an assistant die with flexible pad as a main die. The floating ring designed with specified geometry is located between the process workpiece and the rubber pad. The function of the floating ring in this work is to produce SS304 micro cups with profile radius precision as required as possible. The finite element simulations are accomplished using the commercial code Abaqus/Standard. In order to verify the simulation models, micro deep drawing experiments are carried out using a special set up developed specifically to meet the requirements of the simulations. The results revealed that the proposed technique is feasible to be adopted for producing micro cups with remarkable application capability in miniaturization technology.
Experimental and Numerical Study of Collector Geometry Effect on Solar Chimney Performance
Authors: Shyaa Aseel K. , Albaldawi Rafea A. H. , Abbood Maryam Muayad
Published: April 2019

There have been many advances in the solar chimney power plant  since 1930 and the first pilot work was built in Spain (Manzanares) that produced 50 KW. The solar chimney power plant is considered of a clean power generation that needs to be investigated  to enhance the performance by studying the effect of changing the area of passage of air to enhance the velocity towards the chimney to maximize design velocity. In this experimental and numerical study, the reduction area of solar collector was investigated. The reduction area that mean changing the height of glass cover from the absorbing plate (h1=3.8cm, h2=2.6cm and h3=1.28cm). The numerical study was performed using ANSYS Fluent software package (version 14.0) to solve governing equations. The aim of this work was to study the effect of change the height of reduction area to the design velocity (velocity move the blade of turbine at inlet in the chimney). The results showed that the third height (h3=1.28cm) gives the best result because when decreasing the height between the glass cover and absorbing plate, the area between them decreased and the design velocity increased then the efficiency of solar chimney model was increased.
Active Vibration Suppression of Smart Cantilever Beam with Sliding Mode Observer Using Two Piezoelectric Patches
Authors: AL-Samarraie Shibly A. , Hamzah Mohsin N. , Abdulsahib Imad A.
Published: April 2019

This paper presents a vibration suppression control design of cantilever beam using two piezoelectric ‎patches. One patch was used as ‎an actuator element, while the other was used as a sensor. The controller design was designed via the balance realization reduction method to elect the reduced order model that is most controllable and observable. ‎the sliding mode observer was designed to estimate six states from the reduced order model but three states are only used in the control law. Estimating a number of states larger than that used is in order to increase the estimation accuracy. Moreover, the state ‎estimation error is proved bounded. An ‎optimal LQR controller is designed then using the ‎estimated states with the sliding mode observer, to ‎suppress the vibration of a smart cantilever ‎beam via the piezoelectric elements. The control spillover problem was avoided, by deriving an avoidance ‎condition, to ensure the ‎asymptotic stability for the proposed vibration ‎control design. ‎The numerical simulations were achieved to ‎test the vibration attenuation ability of the ‎proposed optimal control. For 15 mm initial tip ‎displacement, the piezoelectric actuator found ‎able to reduce the tip displacement to about 0.1 ‎mm after 4s, while it was 1.5 mm in the ‎open loop case.  The current experimental results showed a good performance of the proposed LQR control law and the sliding mode observer, as well a good agreement with theoretical results.
Co-digestion of Shumblan with Different Wastes as a Source for the Biogas Production
Authors: Farhan Duaa A. , Lattieff Farkad A. , Atiya Mohammed A.
Published: April 2019

Shumblan (SH) is one of the most undesirable aquatic plants widespread in the irrigation channels and water bodies. This work focuses on boosting the biogas potential of shumblan by co-digesting it with other types of wastes without employing any chemical or thermal pretreatments as done in previous studies. A maximum biogas recovery of 378 ml/g VS was reached using shumblan with cow manure as inoculum in a ratio of 1:1. The methane content of the biogas was 55%. Based on volatile solid (VS) and C/N ratios, biogas productions of 518, 434, and 580 ml/g VS were obtained when the shumblan was co-digested with food wastes (SH:F), paper wastes (SH:P), and green wastes (SH:G) respectively. No significant changes of methane contents were observed during the anaerobic co-digestion of shumblan with the selected wastes. This noticeable increments of biogas yields proved that this sort of biomass can be utilized as a promising source for bioenergy production of industrial scale because of its economic operation. Slight pH variations indicated that the co-digestion performance has a good stability operation and no excessive amounts of volatile fatty acid were accumulated. The results also proved that by using co-digestion technology, the biodegradation of shumblan plants could be significantly accelerated supplying greater amounts of biogas yields. Moreover, the appropriate co-digestion with other wastes gave the shumblan high digestibility and, hence, there will be no need to prior pretreatment in order to boost the biogas yield.
Removal of Dissolved Trivalent Chromium Ions from Contaminated Wastewater using Locally Available Raw Scrap Iron-Aluminum Waste
Authors: Rashid Hayder M. , Faisal Ayad A. H.
Published: April 2019

The present study is to investigate the possibility of using wastes in the form of scrap iron (ZVI) and/ or aluminum ZVAI for the detention and immobilization of the chromium ions in simulated wastewater. Different batch equilibrium parameters such as contact time (0-250) min, sorbent dose (2-8 g ZVI/100 mL and 0.2-1 g ZVAI/100 mL), initial pH (3-6), initial pollutant concentration of 50 mg/L, and speed of agitation (0-250) rpm were investigated. Maximum contaminant removal efficiency corresponding to (96 %) at 250 min contact time, 1g ZVAI/ 6g ZVI sorbent mass ratio, pH 5.5, pollutant concentration of 50 mg/L initially, and 250 rpm agitation speed were obtained.

The best isotherm model for the batch single Cr(III) uptake by ZVI and / or ZVAI sorbent was found to follow Langmuir (I) with corresponding R2greater than 0.9115. Kinetics data for the sorption of Cr(III) onto ZVAI/ZVI mixture and due to the good agreement between the fitted and the experimental results; the data was found to obey the pseudo second order model at which the chemisorptions mechanism was the most dominant in the sorption process. Scanning electron microscopy (SEM) for the ZVI and ZVAI has revealed highly surface changes and saturation by contaminant and apparent pores blockage that hindered and ceased the sorption process.
Antibacterial Inhibitor as an Expired Metoclopramide in 0.5M Phosphoric Acid
Authors: Anaee Rana Afif , Abd Al-Majeed Majed Hameed , Naser Shaimaa Alaa , Kathem Mustafa M. , Ahmed Omer Akram
Published: April 2019

Expired drug Metoclopramide was investigated as an antibacterial corrosion inhibitor for carbon steel in 0.5M H3PO4 solution using the electrochemical method at 30oC and 60oC. The results showed that this drug is an efficient inhibitor for carbon steel and the efficiency reached to 82.244 % for 175 ppm at 30oC and 76.146% for 225 ppm at 60oC. The adsorption of drug on carbon steel surface follows Langmuir adsorption isotherm with small values of adsorption-desorption constant. The polarization plots revealed that Metoclopramide acts as mixed-type inhibitor. Some parameters of inhibition process were calculated and discussed. The surface morphology of the carbon steel specimens was analyzed using scanning electron microscope and energy dispersive X-ray analysis. Antibacterial activity of inhibitor was also tested. Fourier-transform infrared (FTIR) spectroscopy confirmed the inhibitive role of Metoclopramide drug.
Reducing the Pollutants from Municipal Wastewater by Chlorella Vulgaris Microalgae
Authors: Hammad Massara Mustafa Ha , Hameed Khalid W. , Sabti Hussein A.
Published: April 2019

In the present work, the pollutants of the municipal wastewater are reduced using Chlorella vulgaris microalgae. The pollutants that were treated are: Total organic carbon (TOC), Chemical oxygen demand (COD), Nitrate (NO3), and Phosphate (PO4). Firstly, the treatment was achieved at atmospheric conditions (Temperature = 25oC), pH 7 with time (1 – 48 h). To study the effect of other microorganisms on the reduction of pollutants, sterilized wastewater and unsterilized wastewater were used for two types of packing (cylindrical plastic and cubic polystyrene) as well as algae's broth (without packing), where the microalgae are grown on the packing then transported to the wastewater for treatment. The results showed that the other microorganism in unsterilized wastewater can slightly contribute in the treatment. Packing of cylindrical plastic is more effective than the cubic polystyrene, and microalgae's broth gives better results than the two types of packing. The treatment in the first hours was performed quickly while in the last hours, it was very slow. Then, the following parameters in the range of (temperature: 20 – 35o) pH (5 – 8), volume ratio of wastewater to microalgae's broth (1 – 2.5) were studied for sterilized wastewater and constant treatment time equal to 48 h. The results showed that the maximum reduction of pollutants are: TOC = 92.3%, NO3 = 65.2%, PO4 = 93.2% at T = 35oC, pH 8, and (wastewater/algae broth) ratio = 1, and COD = 85.6% at T = 30oC, pH 7, and (wastewater/ algae broth) ratio = 1. The temperature and pH have little effect on the reduction of pollutants compared with the wastewater/algae broth ratio. The adsorption isotherm for pollutant was also studied for three types of isotherm; linear, Freundlich, and Langmuir. The results showed that the treated pollutants are the Langmiur adsorption isotherm.
ADJUSTMENT OF THE TWO-WHEELED MOBILE PLATFORM ROTATIVE MOVEMENT REGULATOR
Authors: Karpov E K , Kuznetsova E M
Published: April 2019

В данной статье приведено краткое описание исследуемых параметров двухколесной мобильной платформы. Для исследуемой платформы определен вид передаточной функции в канонической форме и выполнен расчет ее коэффициентов. Сравнение выходных характеристик вращательного движения мобильной платформы и ее математической модели показало, что с достаточной долей достоверности модель может быть использована для расчета коэффициентов и настройки регулятора мобильной платформы. Расхождение экспериментальной и расчетной кривой вызвано погрешностями эксперимента. Полное подавление колебаний и незначительное запаздывание при выходе переходной характеристики на установившееся значение обусловлено неучитываемыми компонентами передаточной функции при ее представлении колебательным звеном. На основе экспериментальных данных вычислены коэффициенты преобразователя управляющих воздействий, представляющего собой автоматический регулятор системы управления вращательным движением двухколесной мобильной платформы. Проведены исследования принципиальных возможностей реализации разработанного алгоритма на базе микроконтроллера. Особенность этого алгоритма состоит в отсутствии подобных решений для операционных систем микроконтроллеров, а также в отсутствии стандартных библиотек для программирования таких преобразователей на микроконтроллерах или программируемых логических контроллерах. Применяемая настройка регулятора позволяет быстрее и точнее управлять процессом вращения мобильной платформы вокруг вертикальной оси с учетом изменения характеристик управляемого объекта.
DIAGNOSTICS OF INTER-TURN CLOSURES IN BRUSHLESS DC MOTORS
Authors: Zhuykov D A
Published: April 2019

Для построения отказоустойчивого управления необходимо знать все дефекты электрического двигателя, соответствующие диагностические признаки и средства по их измерению. Одними из наиболее распространенных дефектов электрического двигателя являются межвитковые замыкания в обмотке двигателя. По закономерностям изменения параметров двигателя при возникновении дефектов электрического двигателя можно реализовать его диагностику. Затем можно реализовать отказоустойчивое управлением с учетом типа и степени развития неисправности. Целью данной статьи является определение влияния межвитковых замыканий обмотки бесколлекторного двигателя постоянного тока на его характеристики на примере двигателя JK42BLS01. В работе построена математическая модель двигателя, описана зависимость сопротивления, индуктивности и постоянной двигателя от количества витков обмотки; проведен вычислительный эксперимент по моделированию работы двигателя при различном количестве витков обмотки; на базе результатов моделирования построены графики, которые показывают зависимость следующих характеристик электрического двигателя от межвитковых замыканий: пускового, холостого тока и тока при номинальной нагрузке двигателя; пускового, холостого момента и момента при номинальной нагрузке двигателя; угловой скорости при холостых оборотах и при номинальной нагрузке.
New Type of Planetary Gearbox with High Gear Ratio
Authors: Trubachev E S , Mogilnikov A V
Published: April 2019

Для получения чрезвычайно медленных движений (например, в механизмах слежения, машин для испытания на прочность) используются редукторы с большим (несколько тысяч, десятков и сотен тысяч) передаточным отношением. В известных решениях применяется многоступенчатая редукция на основе планетарных или червячных передач. В статье предложены два новых планетарных механизма, построенных на основе червячных и спироидных передач. Редукторы обеспечивают: чрезвычайно высокую редукцию - от десятков тысяч до сотен тысяч и более в одной ступени, соосность входного и выходного валов, многопоточность передачи мощности, плавность работы, возможность регулирования и полной выборки свободного хода (люфта), сочетая в себе, таким образом, многие положительные свойства традиционных многоступенчатых планетарных передач и многоступенчатых простых (непланетарных, рядовых) червячных и спироидных передач. В одном из механизмов спироидный червяк-сателлит зацепляется одновременно с двумя центральными колесами - подвижным и неподвижным; во втором - каждый из двух спироидных червяков-сателлитов, вообще говоря, отличных друг от друга, зацепляется с центральным колесом: один - с подвижным, связанным с выходным валом, второй - с неподвижным. Во втором механизме преодолеваются недостатки первого - наличие вспомогательного относительного расположения спироидных червяка и колеса (и соответствующее понижение КПД и нагрузочной способности), большая теплонагруженность червяка, ограниченность в варьировании параметрами передач. Получены формулы для расчета передаточного отношения, большая величина которого обеспечивается малой разницей в передаточных числах зацеплений спироидного червяка-сателлита (или двух червяков-сателлитов) с центральными колесами. Изложен метод расчета сил, действующих в червячном и двух спироидных зацеплениях и КПД механизма. Метод основан на условии равновесия моментов от указанных сил относительно осей водила и сателлита и реализован в программах расчета, с использованием которых выполнено численное исследование влияния параметров механизма на его передаточное отношение. Цель исследования - рассмотреть новые схемы планетарного механизма, построенные на основе червячных и спироидных передач, изложить метод расчета КПД механизмов. Исследование, в частности, показало, что следует стремиться к большей редукции в червячном зацеплении механизма, межосевым углам, близким к 90º, и малым значениям отношения диаметра колеса к межосевому расстоянию. Предлагаемые механизмы по значениям КПД сопоставимы с простыми, построенными на стационарных осях многоступенчатыми механизмами червячного типа, и обеспечивают по сравнению с последними лучшие компоновочные свойства - компактность и соосность входного и выходного валов.
Estimation of Mean with Two-Parameter Ratio-Product-Ratio Estimator in Double Sampling using Ancillary Information under Non-Response
Authors: Pal Surya K. , Singh Housila P.
Published: April 2019

Ratio-product-ratio estimators with two parameters in double sampling under non-response are considered along with their properties. Practical conditions are obtained in which the suggested estimators are more proficient than other existing estimators. An example is given.
Mudanças produtivas e econômicas e reconfiguração territorial no Brasil no início do século XXI | Productive and economic changes and territorial reconfiguration in Brazil at the beginning of the 21st century
Authors: Brandão Carlos Antônio
Published: April 2019

O objetivo deste artigo é identificar as permanências e transformações mais salientes nas estruturas produtivas que impactaram o território brasileiro no período recente (2003-2018). Propõe-se a análise de uma tipologia de investimentos realizados nos últimos 15 anos e seus rebatimentos espaciais. No período de crescimento 2004-2014, ocorreram inversões públicas e privadas que se orientaram pelo padrão inercial-litorâneo, por sua natureza pontual de enclaves, pela expansão da produção de commodities, pela infraestrutura e pelos gastos sociais. Esse padrão de crescimento começou a ser interrompido em 2015, com a probabilidade de importantes impactos territoriais.
Hierarquias regionais no agronegócio canavieiro: movimento da fronteira e centralidade de São Paulo | Regional hierarchies in sugarcane agribusiness: border movement and centrality of São Paulo
Authors: Mesquita Fernando , Castillo Ricardo , Luna Ivette , Faria dos Santos Henrique
Published: April 2019

O artigo tem como ponto de partida um diálogo com análises que discutem o movimento da fronteira do setor sucroenergético e sua influência no desenvolvimento urbano e regional no interior do território nacional. O argumento é que, apesar da maior dispersão da atividade produtiva, novas desigualdades persistem nesse setor, devido aos centros de decisões e à produção do conhecimento útil ao processo de inovação, localizados essencialmente no Estado de São Paulo. A metodologia desenvolvida se fundamenta em análises quantitativas e qualitativas. No estudo dos centros de decisão, foram utilizados dados da localização das sedes e das unidades agroindustriais. No estudo da centralização do conhecimento, foi feito um exame histórico de como evoluíram o aprendizado e as técnicas associadas ao setor canavieiro em São Paulo. Do ponto de vista teórico, o artigo busca contribuir para o estudo de como forças de diferenciação geográfica atuam em um mesmo setor produtivo.
A reconfiguração espacial do segmento de call center no Brasil vista a partir da instalação de centrais de teleatividades na Paraíba|The space reconfiguration of the call center segment in Brazil seen from the implementation of the teleactivity centers in Paraíba
Authors: Oliveira Roberto Véras de , Moraes Ana Carmen Navarro de
Published: April 2019

Este artigo tem como objetivo principal analisar, sobretudo a partir de dados estatísticos da Relação Anual de Informações Sociais - RAIS e de fontes documentais, o processo de reconfiguração territorial verificado no Brasil na última década no segmento de call center. Inicialmente com alto grau de concentração no Sudeste do país, principalmente em São Paulo, observamos uma tendência recente de crescimento da participação relativa do Nordeste no emprego nacional no setor. Detemo-nos em particular sobre o expressivo crescimento da participação relativa da Paraíba no âmbito regional, quando, a partir de 2012, três grandes empresas de call center se instalaram no estado.
Territórios expectantes e os instrumentos urbanísticos: o caso da Operação Urbana Água Branca|Expectant territories and urban instruments: the case of Urban Operation Água Branca
Authors: Barbosa Eliana Rosa de Queiroz , Somekh Nadia , De Meulder Bruno
Published: April 2019

O artigo aborda os rebatimentos do processo de transformação produtiva no planejamento das cidades, com foco na experiência Paulistana, marcada pela retração da atividade industrial desde finais da década de 1970. Aborda-se aqui os rebatimentos desse processo na reestruturação do território da metrópole paulista por meio da promoção de instrumentos urbanísticos, nomeadamente as Operações Urbanas e especificamente a Operação Urbana Água Branca. A operação é analisada em sua efetividade em transformar o território industrial, apresenta as diferentes estratégias projetuais definidas para esse território, envolvendo os parcelamentos de grandes glebas industriais que, em sua maioria, nunca se materializaram. Finalmente, analisa-se a materialização da Operação Urbana Água Branca por meio do mapeamento dos terrenos consumidos e dos empreendimentos imobiliários dela decorrentes, analisando criticamente a real reestruturação consequente dessa operação.
ANALISIS KETERLAKSANAAN MODEL PEMBELAJARAN SEARCH, SOLVE, CREATE AND SHARE (SSCS)DAN PENGARUHNYA TERHADAP KETERAMPILAN PROSES SAINS SISWA PADA MATERI BENTUK MOLEKUL KELAS X MIA SMA NEGERI 11 KOTA JAMBI
Authors: Dewi Fatria , Afrida Afrida , Triwahyudi Sugeng
Published: April 2019

The instrument used is the observation sheet of teacher and student activity and observation sheet of Skill of Science Process. In order to see the effect of the implementation of SSCS learning modes on the Skills of Science Process, the significance test with the t test. The SSCS model has a percentage of 79.49% categorized as good, the percentage of the model by the students is 73.77% categorized as good, and the percentage of skills of Process Skills of Science of 60.56% is categorized quite well. The relationship of SSCS model implementation with the ability of Process Skills of Science is obtained rxy = 0.756 with strong relationship level. The significance test is done by t test with tcount> ttable (6,65> 2,021) with dk = 33 and α = 0.05, so H0 is rejected and Ha accepted. Based on the results of the research shows that the instructional model of SSCS is running well and there is influence to the Skill of Science Process on the material of Molecular Form Class XMIA 1 SMAN 11 Kota Jambi.
Una nueva forma de medir la calidad de la democracia: la democracia legal o constitucional
Authors: Rodriguez Edeza Manuel Angel , Giménez Jorge , Rocha Patricia , Engelman Thiago , Alencastro Leonardo
Published: April 2019

O projeto propõe uma nova maneira de medir a qualidade da democracia: a partir dos textos constitucionais. Considera-se que se a possibilidade de democracia for medida, especialmente em regimes em desenvolvimento, será necessário começar analisando seus textos constitucionais seja como uma questão legal, seja como uma questão ideal de democracia, como por nações distintas e multiétnicas e multicultural. Nesse sentido, outra discussão é aberta, se devemos nos referir à democracia no singular (como um ideal) ou nas democracias (no plural) em particular. Como suporte teórico, tomam-se os elementos ou dimensões que Morlino (2008) e Alcántara (2008) consideram primordiais para a democracia e os buscam e comparam com os textos constitucionais do Brasil, Argentina, México, Paraguai e Uruguai. Ao final, percebe-se que, seja para melhorar a democracia dos países em questão, seja para buscar um ideal democrático, os textos constitucionais devem ser adaptados.
As regras de Direito do Mar e o espaço internacional: estudo sobre as lutas pelo saber jurídico na ONU
Authors: Frozel Barros Natália
Published: April 2019

Através da análise das negociações diplomáticas sobre o direito do mar na ONU (1973-1982), o artigo analisa a composição das delegações do Brasil, Estados Unidos e França e a atuação de seus membros juristas e de outros profissionais à margem das negociações. Todos encontram-se envoltos numa luta para interpretar as novas regras do direito do mar. Se por um lado, é confirmada a influência do espaço nacional estadunidense sobre a produção desse novo saber jurídico, por outro, identifica-se também a formação de estratégias anti-hegemônicas que se formam no espaço internacional onusiano. Por meio dessas estratégias, os diplomatas dos países periféricos se aliam a produtores menos “nobres” do saber e conseguem introduzir no direito internacional o novo princípio jurídico de “patrimônio comum da humanidade”, contrário aos interesses das maiores potências econômicas da época.
Adaptación al cambio climático: Un análisis desde la gobernanza y el capital social al caso de la comuna de Frutillar-Chile
Authors: Romero Baeza Karla V.
Published: April 2019

As particularidades das atuais condições climáticas ambientais, particularmente aquelas que impactam os territórios, geram a necessidade de desenvolver estratégias de adaptação em nível local, especialmente para redução de riscos e proteção ambiental. A literatura afirma que esse processo pode ser favorecido pelas características do capital social e governança local em territórios locais. Este estudo explora as relações entre capital social, governança e adaptação às mudanças climáticas na comuna de Frutillar, região de Los Lagos, Chile. Por meio de um modelo misto de delineamento exploratório e do uso de técnicas de coleta de informações baseadas em documentação oficial, entrevistas, grupo de discussão e técnicas de análise de conteúdo combinadas com o processamento de dados, foram obtidos resultados que sugerem a existência de fraquezas nas estratégias de adaptação implantadas na comuna de Frutillar, devido à priorização de apenas medidas de mitigação. O estudo conclui afirmando que as estratégias de adaptação não são alcançadas apenas com boa vontade ou com instrumentos de planejamento, é necessário desenvolver práticas efetivas implantadas de e para o território. Sem isso, a adaptação às mudanças climáticas não será adequada ou valiosa para os habitantes do território.
Conferências Nacionais do Meio Ambiente e Desenvolvimento Sustentável: Participação e efetividade
Authors: Ayres Wilian D'Agostini , Tonella Celene
Published: April 2019

O artigo analisa as Conferências Nacionais do Meio Ambiente – CNMA, realizadas nos anos de 2003, 2005, 2008 e 2013, com foco nos resultados quantitativos e qualitativos referentes às políticas públicas ambientais em duas vertentes, a da efetividade e a da intensidade da participação. A partir dos textos finais das conferências e demais documentos produzidos pelo Ministério do Meio Ambiente, apresenta-se a produção do material legislativo resultante das agendas, ou seja, quantidades de leis, decretos e outros dispositivos legais produzidos pelas conferências, além de mensurar-se a efetividade da democracia participativa nos processos desses eventos, observando-se o perfil dos participantes e a temática debatida por edição. Conclui-se que as Conferências Nacionais de Meio Ambiente são um método de política pública eficaz quando levado em consideração os atores relevantes de políticas que compõem esse processo. A complexidade da temática ambiental e do desenvolvimento sustentável emerge na diversidade de temas e proposições.
Da crítica da política à gestão pública eficaz: a despolitização como estratégia de poder
Authors: Bento Juliane Sant'Ana
Published: April 2019

Os julgamentos da política municipal do Rio Grande do Sul fornecem elementos para se refletir em maior escala sobre as transformações operadas na política pela definição que dela fazem os juristas. A hipótese que este trabalho mobiliza é de que a empresa de crítica da política protagonizada pelo sistema de justiça tem reforçado a estigmatização da política local como arcaica e patológica. Além disso, tem credenciado novos agentes, dotados de outros atributos antes externos à lógica política, enquanto sujeitos legitimados eleitoralmente a apresentar melhores soluções para a crise das administrações públicas. Este artigo descreve os resultados encontrados em estudo de caso sobre julgamento de prefeitos no referido estado com o objetivo de discutir a importação tardia da doutrina do new public management como modelo de gestão.
POLÍTICAS PÚBLICAS DE ESPORTE E LAZER PARA PESSOAS COM DEFICIÊNCIA
Authors: Caravage Andresa , Oliver Fátima Corrêa
Published: April 2019

Estudos brasileiros sobre políticas públicas de esporte e lazer são incipientes, principalmente aqueles que abordam as pessoas com deficiência. A temática é complexa e, embora este estudo traga o contexto específico de um município do estado de São Paulo, buscou-se uma visão ampliada sobre a constituição dos programas esportivos e demais políticas públicas a partir da compreensão da organização (polity), das disputas internas (politics), da política pública resultante (policy) e dos atores que compõem a rede (policy network). No mapeamento e entrevistas com gestores e profissionais, foram identificados três programas e cinco modalidades adaptadas às pessoas com deficiência. Mesmo sem uma política intersetorial articulada e as relações entre os atores sendo, predominantemente, informais até então, o surgimento de demanda, a organização social e a sensibilidade dos órgãos competentes para articularem condições, instituições e pessoas capazes do enfrentamento da questão foram pontos-chave para o desenvolvimento das ações.
A PSICOCINÉTICA DE JEAN LE BOULCH E O CONHECIMENTO DO CORPO NA EDUCAÇÃO FÍSICA
Authors: Silva Christyan Giullianno de Lara Souza , Andrieu Bernard , Nóbrega Terezinha Petrúcia da
Published: April 2019

O presente ensaio apresenta o pensamento de Jean Le Boulch e suas ideias sobre a Psicocinética e o esquema corporal. Trata-se de um estudo teórico, apoiando-se nas obras do autor publicadas no Brasil e sua tese doutoral, defendida em 1960. Utilizamos também uma entrevista concedida à revista francesa Éducation Physique et Sport (EPS) (1983), além de outros trabalhos desenvolvidos por ele, tais como conferências, palestras e seminários. Com essa reflexão espera-se contribuir para a compreensão de suas ideias, em particular sobre o conhecimento do corpo na Educação Física.
Sobre o regime de visualidade racializado e a violência da imageria racista: notas para os estudos da imagem.
Authors: Rocha Dossin Francielly
Published: April 2019

Resumo: O presente artigo tem como objetivo realizar uma investigação sobre os modos de funcionamento da representação produzida pela imagem, sobretudo sobre a representação histórica racista. Para tanto, questionamos a prestensa “transparência” da imagem e interrogamos o caráter violento da imageria racista, assim como as possibilidades de desconstrução dessa visualidade racializada.
Patrimônio e Performance cultural: Experiência e Territorialidade na Conquista do Espaço
Authors: Barroso Eloísa Pereira
Published: April 2019

O presente artigo tem como objetivo fazer um exercício de reflexão teórica sobre os conceitos de território, performance cultural e patrimônio imaterial, com o intuito de procurar ressaltar a correlação entre as ideias de memória, cultura, identidade e territorialidade. Entende-se aqui o conceito de performance numa perspectiva ampla em que o mesmo se refere a um sentido relativo ao acontecimento, ao desejo humano de experienciar, ou seja, à presentificação das ações humanas performadas como uma expressão singular de identidades na territorialização dos espaços por meio dos sentidos atribuídos ao patrimônio cultural pelos grupos sociais. Neste artigo buscamos um percurso teórico-metodológico no qual a proposta é evidenciar, por meio de relações entre as categorias de análise, que os processos de produção da expressão desse patrimônio se realizam não enquanto produto cristalizado, mas como um ato concreto de criação e recriação, de significação e ressignificação das representações dos sujeitos em um campo de disputas de memórias, pois que a ação humana expressa produção de sentidos no aqui e agora que, expressos via performance, territorializam os espaços.
Derivation of Mean Value Coordinates Using Interior Distance and Their Application on Mesh Deformation
Authors: Custódio Lis , Pesco Sinesio
Published: April 2019

The deformation methods based on cage controls became a subject of considerable interest due its simplicity and intuitive results. In this technique, the model is enclosed within a simpler mesh (the cage) and its points are expressed as function of the cage elements. Then, by manipulating the cage, the respective deformation is obtained on the model in its interior.In this direction, in the last years, extensions of barycentric coordinates, such as Mean Value coordinates, Positive Mean Value Coordinates, Harmonic coordinates and Green's coordinates, have been proposed to write the points of the model as a function of the cage elements.The Mean Value coordinates, proposed by Floater in two dimensions and extended later to three dimensions by Ju et al. and also by Floater, stands out from the other coordinates because of their simple derivation. However the existence of negative coordinates in regions bounded by non-convex cage control results in a unexpected behavior of the deformation in some regions of the model.In this work, we propose a modification in the derivation of Mean Value Coordinates proposed by Floater. Our derivation maintains the simplicity of the construction of the coordinates and eliminates the undesired behavior in the deformation by diminishing the negative influence of a control vertex on regions ofthe model not related to it. We also compare the deformation generated with our coordinates and the deformations obtained with the original Mean Value coordinates and Harmonic coordinates.
Video Conferencing Evaluation Considering Scalable Video Coding and SDN Network
Authors: Oliveira Francisco , Tavares Eduardo , Sousa Erica , Nogueira Bruno
Published: April 2019

Video conferencing is very common nowadays, and it may contemplate heterogenous devices (e.g., smartphones, notebooks, game consoles) and networks in the same session. Developing video conferencing systems for this myriad of devices with different capabilities requires special attention from system designer. Scalable video coding (SVC) is a prominent option to mitigate this heterogeneity issue, but traditional Internet protocol (IP) networks may not fully benefit from such a technology. In contrast, software-defined networking (SDN) may allow better utilization of SVC and improvements on video conferencing components. This paper evaluates the performance of video conferencing systems adopting SVC, SDN and ordinary IP networks, taking into account throughput, delay and peak signal-to-noise ratio (PSNR) as the metrics of interest. The experiments are based on Mininet framework and distinct network infrastructures are also considered. Results indicate SDN with SVC may deliver better video quality with reduced delay and increased throughput.
Exact Algorithms for the Graph Coloring Problem
Authors: De Lima Alane Marie , Carmo Renato
Published: April 2019

The graph coloring problem is the problem of partitioning the vertices of a graph into the smallest possible set of independent sets. Since it is a well-known NP-Hard problem, it is of great interest of the computer science finding results over exact algorithms that solve it. The main algorithms of this kind, though, are scattered through the literature. In this paper, we group and contextualize some of these algorithms, which are based in Dynamic Programming, Branch-and-Bound and Integer Linear Programming. The algorithms for the first group are based in the work of Lawler, which searches maximal independent sets on each subset of vertices of a graph as the base of his algorithm. In the second group, the algorithms are based in the work of Brelaz, which adapted the DSATUR procedure to an exact version, and in the work of Zykov, which introduced the definition of Zykov trees. The third group contains the algorithms based in the work of Mehrotra and Trick, which uses the Column Generation method.
V: a language with extensible record accessors and a trait-based type system
Authors: Vedana Arthur Giesel , Machado Rodrigo , Moreira Álvaro Freitas
Published: April 2019

This article introduces the V language, a purely functional programming language with a novel approach to records.Based on a system of type traits, V attempts to solve issues commonly found when manipulating records in purely functional programming languages.
TTESTING ABSOLUTE PPP HYPOTHESIS FOR TWENTY COUNTRIES THROUGH THE SKELETON FROM A SETAR MODEL: SOME NEW EVIDENCE
Authors: Marques André De Mattos , Figueiredo Erik Alencar de
Published: April 2019

In this study, the long run PPP hypothesis was tested considering real effective exchange rate dataset for twenty countries provided by the International Monetary Fund (IMF). By focusing on a nonlinear approach, the study tests IMF monthly dataset for specific nonlinearity. Additionally, the study presents a method to estimate the value that real exchange rate may converge in the long run. Linear and nonlinear cases were distinguished by the Hansen’s test. The Self-Exciting Threshold Autoregressive (Setar) model was applied to estimate potential thresholds to indicate the states turning points of the countries competitiveness. Results suggest that real exchange rate for thirteen countries are highly nonlinear and subjected to regime switching. The asymptotic stability analysis guarantees the data stationarity behavior. Absolute PPP hypothesis was supported in five out of thirteen cases. In these few cases the real exchange rate converges to a stable equilibrium not far from the value predicted by the PPP hypothesis.
INDÚSTRIA E DESENVOLVIMENTO ECONÔMICO NAS REGIÕES BRASILEIRAS: REVISITANDO HIPÓTESES DA DESINDUSTRIALIZAÇÃO “NATURAL” COM DADOS MUNICIPAIS (1999 A 2011)
Authors: Saiani Carlos César Santejo , Veríssimo Michele Polline
Published: April 2019

Este artigo investiga a hipótese de desindustrialização “natural” no Brasil, com o objetivo de avaliar a existência e as implicações da relação no formato de um “U-invertido” entre as participações industriais no emprego e no produto e a renda per capita dos municípios brasileiros, segmentados em regiões geográficas. Para isso, são realizadas estimações econométricas em painel por efeitos fixos e pelo método Tobit (robustez). As evidências encontradas não refutam quatro hipóteses levantadas pela literatura: ocorrência do “U-invertido” na relação entre a industrialização (medida pelo emprego e pelo produto) e a renda per capita municipal; redução da participação industrial no emprego em nível de renda inferior ao ponto de retração da participação industrial no produto; queda da participação da indústria no produto nas regiões menos desenvolvidas em níveis de renda inferiores (precoces) ao do Sudeste; e aumento da importância relativa do setor de serviços em detrimento à da indústria.