bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving The Localization Of Electric Wheelchair By Using Particle Filter
Authors: Njah Malek , Jallouli Mohamed 
Published: March 2018

Abstract
The electric wheelchair for handicapped is used to improve the displacement of disabled persons. An automatic navigation system is needed to ensure greater autonomy and security for the disabled person. Automatic control system is added to a manual control for autonomous displacement. Initial system composed of two DC motors installed at the rear of used electric wheelchair, power module for the motors control and joystick to select speed and moving direction. We include an automatic control system composed by two electronic cards, based on microcontrollers CB405 and PIC16F877 for the signal acquisition from the encoders and distance measurements from ultrasonic sensors (SRF08 and SRF04). The ultrasonic sensors used to improve the localization when we use an automatic control system. Several techniques exist for sensors fusion solves the problems of mobile robots localization. Among these methods, we can quote the particle filter that use data from the encoders and measures from the ultrasonic sensors.
Security Method For Combination Steganography Algorithms On Transform Domain For Jpeg Images
Authors: Jaheel Hamdan L. , Beiji Zou 
Published: March 2018

Abstract
Steganography is the act of hiding a message inside another message in such a way that can only be detected by its intended recipient. In any communication, security is the most important issue in the world today. It created a lot of data security and steganography algorithms in the past decade, and that worked motivation for our research. In this paper, Security Method for Combination Steganography Algorithms on Transform domain for JPEG images, we have designed a system that will allow the average user to securely transfer secret messages (picture) securely by hiding them in JPEG image file using local characteristics within the image. This paper is a combination of two steganography algorithms, which provide a strong backbone for its security. The proposed system hides the image unrevealed manner through the use of steganography algorithms to protect each other, where was used F4 algorithm as a wall to protect outguess01 algorithm. We combine between steganography algorithms (outguess 0.1 algorithm and F4 algorithm) to make use of it to provide more than level of protection for the secret message (image). When save the secret message (image) within an image by using outguess01 algorithm, Which produces outguess-image, then hide outguess-image within another image by using F4 algorithm, Which produces F4-image(stego image). Adopt the principle of camouflage and deception to hide image gives another level of safety for secret Image. Good selection of size and type images used in the process of concealment that contributed to the success of the process of embedded and retrieval of hidden images. Results proved after calculating the capacity and PSNR for images that a good and acceptable steganography scheme. The model presented here is based on JPEG images.
Sharing Research Experiences Of Wsn Based Smart Home
Authors: Ghayvat H. , Nag A. , Suryadevara N. K. , Mukhopadhyay S.C. , Gui X. , Liu J. 
Published: March 2018

Abstract
We are pursuing our research on ZigBee based WSNs for more than 8 years; a lot of realization stories are conveyed in literature on the development of wireless measurement of sensors data using ZigBee (XBee RF module). Many projects are fruitfully completed for applications such as smart home for elder care, environmental monitoring, big building monitoring and so on. Still a lot of design issues are there while the systems are designed using ZigBees. In this research paper the working experiences which may support other researchers to achieve success without wasting resources are reported. Moreover, presented research analyses of some unusual observations made in a proto-typed smart home monitoring system have been discussed. Packet delivery ratio (PDR) and latency are among a few reliability issues that have been analysed and addressed in this article to make the system more robust.
Optimal Techniques For Sensing Error Minimization With Improved Energy Detection In Cognitive Radios
Authors: Muthumeenakshi K. , Radha S. 
Published: March 2018

Abstract
Spectrum sensing, the problem of detecting the presence of licensed user in the channel is considered in this paper. Energy detection is best suited for the spectrum sensing when prior knowledge about the primary users is unavailable. Existing works report improved versions of energy detection which primarily focuses on maximizing the detection performance. Sensing error minimization is an important aspect of spectrum sensing that needs attention. This paper focuses on the sensing error minimization of the improved energy detection algorithm in which the decision statistic is computed using an arbitrary positive index instead of squaring operation. First, an optimum decision threshold satisfying Minimum Error Bound (MEB) is derived. Next, an optimum value of the arbitrary positive index with minimum number of samples satisfying a Target Error Bound (TEB) is derived. A thorough numerical analysis and simulations are performed and the results confirm the accuracy of the analysis.
The Power of Social Cognition
Authors: Morgan Geoffrey P. , Joseph Kenneth , Carley Kathleen M. 
Published: March 2018

Abstract
As human beings, we understand and make sense of the social world using social cognition. Social cognitions are cognitive processes through which we understand, process, and recall our interactions with others. Most agent-based models do not account for social cognition; rather, they either provide detailed models of task-related cognition or model many actors and focus on social processes. In general, the more cognitively realistic the models, the less they explain human social behavior and the more computationally expensive it is to model a single agent. In contrast, in this research an agent-based model containing an explicit model of social cognition is developed. Results from this model demonstrate that adding social cognition both improves the model veridicality and decreases computation costs.
The Invisible Contours of Online Dating Communities: A Social Network Perspective
Authors: Felmlee Diane H. , Kreager Derek A. 
Published: March 2018

Abstract
This study analyzed the e-mail exchange network of participants of a national dating website. The investigation examined whether aggregated partner preferences give rise to distinct, “invisible,” clusters in online dating networks that structure dating opportunities and result in homophilous subgroups. The findings identified and visualized the ten largest network clusters of participants who interacted with each other and examined the dater characteristics most responsible for cluster membership. Rated attractiveness and age were the strongest cluster correlates, whereas education and race were relatively uncommon determinants. In sum, daters’ interdependent actions created aggregate communities unseen by the users themselves, but no less influential for dating opportunities, that were based more on attractiveness and age than on race and education.
Spatio-temporal data mining and modeling: distribution pattern and governance input efficiency of heavy metal emission in industrial wastewater, China
Authors: Li Xinjian , Qiao Hong , Wang Rui , Li Fei , Li Xiaoling 
Published: March 2018

Abstract
Heavy metal (HM) in industrial wastewater has been one of the serious environmental issues in China for a long time. This paper analyzes the distribution of HMs and governance input efficiency in industrial wastewater based on the archival data of China Statistical Yearbook on Environment from 2001 to 2014. The empirical analysis shows that the concentrations of Hg, Cd, Pb, As, and Cr(VI) generally decreased from 2001 to 2014. The emissions of Hg, Cd, Pb, and As are mostly concentrated in the central provinces (i.e., Hunan, Hubei, Jiangxi), the southern provinces (i.e., Guangxi and Guangdong), and the northern provinces (i.e., Gansu and Inner Mongolia). The distribution pattern is closely related to local industry due to resources dependence, such as mining and processing of non-ferrous metal ores, smelting and pressing of ferrous or non-ferrous metals. Cr(VI) is mainly located in the eastern coastal provinces, including Zhejiang and Jiangsu, and caused by manufacturing industries such as automobile, metal products, leather, fur, feather and related products, and footware. Furthermore, we find that the annual expenditure on and the capacity to deal with industrial wastewater play significant negative effects on reducing HM concentrations in industrial wastewater.
AARON SWARTZ AND THE SPIRIT OF INFORMATION
Authors: Day Ronald E. 
Published: March 2018

Today, I will discuss aspects of my project on the Spirit of Information. I will present part of a chapter of a new book that I am working on documentation and expression, where I discuss information as an attempt to break away from documentation during modernity and today. AARON SWARTZ E O ESPÍRITO DA INFORMAÇÃOResumo Hoje vou discutir aspectos do meu projeto sobre "O espírito da informação". Irei apresentar parte do capítulo de um novo livro em que estou trabalhando sobre documentação e expressão, onde discuto a informação como uma tentativa de romper com a documentação durante a modernidade e hoje.
LA LÓGICA DEL SISTEMA CATEGORIAL DE LA BIBLIOTECOLOGÍA Y ESTUDIOS DE LA INFORMACIÓN DOCUMENTAL. UN ANÁLISIS DIALÉCTICO
Authors: Rendón Rojas Miguel Ángel 
Published: March 2018

Se presenta un estudio sobre un aspecto de la fundamentación lógica de la Bibliotecología y Estudios de la Información. Por fundamentación lógica se entiende el análisis de las relaciones entre los componentes del aparato teórico de una disciplina. El aspecto que se pretende realizar es el análisis de las relaciones dialécticas entre dichos componentes. Una relación dialéctica es aquella por la cual se infieren unas categorías a partir del análisis de elementos internos y su interrelación presentes en una categoría inicial. Se parte de una categoría primaria, la cual contiene todos los demás elementos de la estructura teórica de la ciencia. A semejanza de Marx quien en su obra “El Capital” comienza con el concepto “mercancía” para después inferir la teoría de la economía capitalista, nosotros partimos del concepto “documento” para obtener la teoría de la Bibliotecología. Finalmente siguiendo el desarrollo dialéctico del conocimiento se transita de la categoría inicial como relación más simple, a la esencia, después a la apariencia y finalmente a la realidad. Se propone como esencia de la Bibliotecología el satisfacer necesidades de información documental, como apariencia el servicio que se presta al público y como realidad a un sistema de información concreto. A LÓGICA DO SISTEMA CATEGORIAL DA BIBLIOTECONOMIA E ESTUDOS DA INFORMAÇÃO DOCUMENTAL: UMA ANÁLISE DIALÉTICA Resumo Apresenta-se estudo de um aspecto da fundamentação lógica da Biblioteconomia e Estudos da Informação. Por fundamentação lógica entende-se a análise das relações entre os componentes do aparato teórico de uma disciplina. O aspecto que se pretende observar compreende a análise das relações dialéticas entre esses componentes. A relação dialética é aquela pela qual algumas categorias são inferidas a partir da análise de elementos internos e suas interrelações presentes em uma categorização inicial. Parte-se de uma categoria principal que contém todos os outros elementos da estrutura teórica da ciência. Como Marx, que na sua obra “O Capital” começa com o conceito de "mercadoria" para daí inferir sua teoria da economia capitalista, partimos do conceito de "documento" para chegar a uma teoria da Biblioteconomia. Finalmente, após o desenvolvimento dialético do conhecimento, transita-se da categoria incial como a relação mais simples, a essência, e daí para a aparência e, finalmente, para a realidade. Propõe-se como essência da Biblioteconomia a satisfação da informação documental, como aparência o serviço que se presta ao público e como realidade os sistemas de informação concretos.
A DIMENSÃO INFORMACIONAL DO FENÔMENO ARQUIVÍSTICO
Authors: Silva Eliezer Pires da 
Published: March 2018

ResumoEste estudo discute questões inerentes à invenção do informacional e seus desdobramentos sobre o fenômeno arquivístico, a partir de uma reflexão elaborada com base nos argumentos da Arquivologia. A análise pressupõe que a contemporaneidade da dimensão informacional dos arquivos contribui para esclarecer a complexidade das relações entre arquivo e suas funções de uso social. Como metodologia propõe-se um exercício de caracterização da noção de informação na contemporaneidade e, em especial, na perspectiva dos arquivos. O campo empírico apresenta-se em torno de dois eixos explicativos: a invenção do informacional da contemporaneidade e a dimensão informacional nos arquivos. O estudo proporciona uma problematização sobre o fenômeno arquivístico sob certas argumentações consagradas, como a centralidade no aspecto material dos acervos, e ilumina a dimensão informacional como horizonte de ampliação de conhecimento sobre a existência e as funções dos arquivos. THE INFORMATIONAL DIMENSION OF THE ARCHIVAL PHENOMENON This paper discusses issues related to the invention of informational phenomena and its consequences on the archival phenomenon from reflections based on Archivist arguments. The analysis assumes that the contemporary of the informational dimension of the archives helps to clarify the complex relationship between files and its function on social use. As methodology it is proposed an exercise which characterizes the information notion on the contemporary, especially in the particular in view of the archive. The empirical field comes from two explanatory axes: the contemporary invention of the informational, and informational dimension in the archives. The study provides a questioning about the archival phenomenon under certain consecrated arguments, such as the centrality of the material aspect of the collections, and illuminates the informational dimension as the horizon of expansion of knowledge about the existence and functions of the archives.
EMPRESAS, DITADURA CIVIL MILITAR BRASILEIRA E CENTROS DE MEMÓRIA E DOCUMENTAÇÃO CORPORATIVOS: UM ESTUDO EXPLORATÓRIO
Authors: Da Costa Alessandra de Sá Mello , Silva Marcelo Almeida de Carvalho , Monteiro Carlos Arthur Vieira 
Published: March 2018

De 1964 a 1985 o Brasil viveu sob um regime de governo ditatorial que de acordo com a historiografia mais recente foi sustentado, em grande parte, pela própria sociedade civil (MELO, 2012; COMISSÃO, 2014). Mais recentemente, a partir dos anos 1980, cresce o movimento de criação de espaços de memória corporativos com o objetivo de tornar pública a trajetória histórica das empresas (COSTA; SARAIVA, 2011). Dentre estes espaços, adquire relevância os Centros de Memória e documentação como lugares de armazenamento e lembrança de memória organizacional, que ajudam a construir simbolicamente a imagem organizacional e a fornecer um senso de coerência e trajetória linear (RIBEIRO; BARBOSA, 2007). Neste contexto, e com base na documentação disponibilizada pela Comissão Nacional da Verdade, a presente pesquisa tem por objetivo identificar como o Museu Histórico da Fundação Bradesco retrata (ou deixa de retratar) o relacionamento da empresa Bradesco com o governo brasileiro no período da ditadura civil-militar. FIRMS, BRAZILIAN CIVIL-MILITARE DICTATORSHIP, AND MEMORY AND CORPORATIVE DOCUMENTATION CENTERS: AN EXPLORATORY STUDY From 1964 to 1985, Brazil lived under a dictatorial system of government that according to the latest historiography was sustained largely by civil society (MELO, 2012; COMISSÃO, 2014). More recently, since the 1980s, it is possible to be noticed the growing movement of creation of corporate memory spaces in order to make public the historical trajectory of the companies (COSTA and SARAIVA, 2011). Among these spaces, acquires relevance the Corporate Documentation and Memory Centers, which help to symbolically build the organizational image and to provide a sense of consistency and linear trajectory (RIBEIRO and BARBOSA, 2007). In this context, and based on documentation provided by the National Commission of Truth, this research aims to identify how the History Museum of Bradesco Foundation portrays (or does not portray) the relationship between Bradesco company and the Brazilian government in the period of civil-military dictatorship.
INFORMATION ETHICS: NORMATIVE AND CRITICAL PERSPECTIVES
Authors: Day Ronald E. 
Published: March 2018

This article was delivered as a public lecture at the Universidade Federal do Rio de Janeiro, March 24, 2015. It discusses normative information and library ethics and then formal and critical information and library ethics, the latter being the preconditions to the existence of information access and user’s choices. Information professionals have strong responsibilities in creating the possibilities for information, and therefore, for truth and rights to truth, by their choices in constructing and making available or not information. Professional formal and critical ethics are, thus, preconditions to information access and choices by users. ÉTICA INFORMACIONAL: AS PERSPECTIVAS NORMATIVA E CRÍTICA ResumoEste artigo foi apresentado como conferência pública na Universidade Federal do Rio de Janeiro, em 24 de março de 2015. Discute regras referentes à informação e a ética biblioteconômica e, daí, critérios formais e críticos para a informação e a ética biblioteconômica, a última como precondição para existência do acesso à informação e escolha dos usuários. Os profissionais da informação têm grande responsabilidades na criação de possibilidades para informação e, daí, à verdade e ao direito à verdade, a partir de suas escolhas na construção e no fazer acessível ou não a informação. Critérios formais e ética crítica são, então, precondições para o acesso e escolha de informações pelos usuários.
AS CORES EM WITTGENSTEIN: DA FENOMENOLOGIA AOS JOGOS DE LINGUAGENS E A FOTOGRAFIA DIGITAL
Authors: Guerra Claudia Bucceroni 
Published: March 2018

Ludwig Wittgenstein apreciava as cores a ponto de utiliza-las para ilustrar o poder das proposições e seus limites, bem como criando jogos de linguagem relacionados às cores. A complexidade das proposições relacionadas às cores possibilita pensar a subjetividade de reprodução em meio digital das cores. COLORS IN WITTGENSTEIN: FROM PHENOMENOLOGY TO THE LANGUAGES GAMES AND THEDIGITAL PHOTOGRAPHYAbstractLudwig Wittgenstein liked the colors as to use them to illustrate the power of propositions and their limits, and creating language games related to colors. The complexity of the proposals related to the colors enables think subjectivity of the theirs capture in digital image mediun.
A INFORMAÇÃO ENTRE SENTIDO E VALIDADE: GLOSAS RECONSTRUTIVAS
Authors: Menezes Vinícios Souza de 
Published: March 2018

Trata-se de um encontro dialogal da virada pragmático-linguística filosofia com a informação e a teoria crítica da sociedade. O escopo de tal encontro é a busca pelas possibilidades férteis que a teoria crítica da sociedade pós-virada linguística oferece para os estudos sociais da informação, em especial, o método da reconstrução racional, cujo propósito reconstrutivo traz consigo dois conceitos fundamentais que se assemelham e coexistem com as ações prático-cognitivas da informação: sentido e validade. Versa acerca de um encontro público entre as pretensões racionais do uso público da linguagem e seu eco pelas veredas plurais dos estudos informacionais. Ao final das glosas, ficam vestígios e indícios de uma tarefa humanitária e emancipatória porvir, em seu detalhe informacional. INFORMATION BETWEEN MEANING AND VALIDITY: GLOSSES RECONSTRUCTIVEAbstractIt is a dialogical meeting of the pragmatic-linguistic turn philosophy with information and critical theory of society. The scope of this meeting is the search for fertile possibilities that the critical theory of society linguistic post-oriented provides for the social studies of information, in particular the method of rational reconstruction, the purpose of reconstructive brings with it two key concepts that are similar and coexist with the practical-cognitive actions of information: meaning and validity. Versa about a public meeting between the rational claims of the public use of language and its echo the plural paths of informational studies. At the end of glosses, are traces and evidence of a humanitarian task and future emancipatory in its informational detail.
Targeting Gap Junctions: New Insights into the Treatment of Major Depressive Disorder
Authors: Sarrouilhe Denis , Mesnil Marc , Dejean Catherine 
Published: March 2018

Background:Major depressive disorder (MDD) is a multifactorial chronic and debilitating mood disease with high lifetime prevalence and associated with excess mortality. Treatments for this disease are not effective in all patients showing the need to find new therapeutic targets.Objective:This review aims to update our knowledge on the involvement of astroglial gap junctions and hemichannels in MDD and to show how they have become potential targets for the treatment of this pathology.Methods:The method applied in this review includes a systematic compilation of the relevant literature.Results and Conclusion:The use of rodent models of depression, gene analysis of hippocampal tissues of MDD patients and post-mortem studies on the brains from MDD patients suggest that astrocytic gap junction dysfunction may be a part of MDD etiologies. Chronic antidepressant treatments of rats, rat cultured cortical astrocytes and human astrocytoma cell lines support the hypothesis that the up-regulation of gap junctional coupling between astrocytes could be an underlying mechanism for the therapeutic effect of antidepressants. However, two recent functional studies suggest that connexin43 hemichannel activity is a part of several antidepressants’ mode of action and that astrocyte gap junctional intercellular communication and hemichannels exert different effects on antidepressant drug response. Even if they emerge as new therapeutic targets for new and more active treatments, further studies are needed to decipher the sophisticated and respective role of astrocytic gap junctions and hemichannels in MDD.