Miracle-dz/UniFAR-FTUs huggingface dataset:
A highly stretchable, fiber-shaped supercapacitor.

Flexible and portable devices are a mainstream direction in modern electronics and related multidisciplinary fields. To this end, they are generally required to be stretchable to satisfy various substrates. As a result, stretchable devices, such as electrochemical supercapacitors, lithium-ion batteries, organic solar cells, organic light-emitting diodes, field-effect transistors, and artificial skin sensors have been widely studied. However, these stretchable devices are made in a conventional planar format that has largely hindered their development. For the portable applications, the devices need to be lightweight and small, though it is difficult for them to be made into efficient microdevices. In particular, it is challenging or even impossible for them to be used in electronic circuits and textiles that are urgently required also in a wide variety of other fields, such as microelectronic applications. Recently, some attempts have been made to fabricate wire-shaped microdevices, such as electrochemical supercapacitors. They have been generally produced by twisting two fiber electrodes with electrolytes coated on the surface. Several examples have been also successfully shown to make fiber-shaped supercapacitors with a coaxial structure. Compared with their planar counterparts, the wire or fiber shape enables promising advantages such as being lightweight and woven into textiles. Although the wire and fiber-shaped supercapacitors are also flexible with high electrochemical performance, they are not stretchable, which is critically important for many applications. For instance, the resulting electronic textiles could easily break during the use if they were not stretchable. To the best of our knowledge, herein we have, for the first time, developed a novel family of highly stretchable, fibershaped high-performance supercapacitors. Aligned carbon nanotube (CNT) sheets that are sequentially wrapped on an elastic fiber serve as two electrodes. The use of aligned CNT sheets offers combined remarkable properties including high flexibility, tensile strength, electrical conductivity, and mechanical and thermal stability. As a result, the fibershaped supercapacitor maintains a high specific capacitance of approximately 18 F/g after stretch by 75% for 100 cycles. Spinnable CNT arrays were first synthesized by chemical vapor deposition. A scanning electron microscopy (SEM) image of the array with height of 230 mm is shown in the Supporting Information, Figure S1, and the CNT shows a multi-walled structure with diameter of about 10 nm (Supporting Information, Figure S2). Aligned CNT sheets could be then continuously drawn from the array and easily attached to various substrates. Elastic fibers were used herein to offer the stretchability in the resulting supercapactiors, and rubber fibers have been mainly studied as a demonstration. For a typical fabrication on the fiber-shaped supercapacitor (Figure 1), a rubber fiber was first coated with a thin layer of
Mathematical and Dynamic Analysis of a Prey-Predator Model in the Presence of Alternative Prey with Impulsive State Feedback Control

The dynamic complexities of a prey-predator system in the presence of alternative prey with impulsive state feedback control are studied analytically and numerically. By using the analogue of the Poincare criterion, sufficient conditions for the existence and stability of semitrivial periodic solutions can be obtained. Furthermore, the corresponding bifurcation diagrams and phase diagrams are investigated by means of numerical simulations which illustrate the feasibility of the main results.
Ansatz libre de parámetros para inferir el estado fundamental de la Ecuación de Mathieu

Recientemente fue introducida en la literatura un procedimiento, basada en la conexion existente entre la medida de Informacion de Fisher y la ecuacion de Schroedinger, que permite formular un ansatz para la solucion del estado fundamental de aquellas SE que incorporan potenciales convexos simetricos. Por medio de esta tecnica obtenemos una solucion-ansatz, libre de parametros, para el estado fundamental de la Ecuacion de Mathieu.
Monaural Source Separation Using a Random Forest Classifier

We address the problem of separating two audio sources from a single channel mixture recording. A novel method called Multi Layered Random Forest (MLRF) that learns a binary mask for both the sources is presented. Random Forest (RF) classifiers are trained for each frequency band of a source spectrogram. A specialized set of linear transformations are applied to a local time-frequency (T-F) neighborhood of the mixture that captures relevant local statistics. A sampling method is presented that efficiently samples T-F training bins in each frequency band. We draw equal numbers of dominant (more power) training samples from the two sources for RF classifiers that estimate the Ideal Binary Mask (IBM). An estimated IBM in a given layer is used to train a RF classifier in the next higher layer of the MLRF hierarchy. On average, MLRF performs better than deep Recurrent Neural Networks (RNNs) and Non-Negative Sparse Coding (NNSC) in signal-to-noise ratio (SNR) of reconstructed audio, overall T-F bin classification accuracy, as well as PESQ and STOI scores. Additionally, we demonstrate the ability of the MLRF to correctly reconstruct T-F bins of the target even when the latter has lower power in that frequency band.
A cultura de aprender uma lingua estrangeira (ingles) em sala de aula que se propõe interdisciplinar

Este trabalho focaliza as concepcoes do aprendiz em relacao a aprendizagem de lingua estrangeira (doravante LE) e procura responder a seguinte pergunta de pesquisa:como alunos de sexta serie publica manifestam sua cultura de aprender em sala de aula que se propoe interdisciplinar? Visa a uma reflexao e interpretacao de aspectos relativos a cultura de aprender uma LEe objetiva ainda contribuir para a (auto-)formacao e atualizacao dos professores de linguas. O arcabouco teorico considera contribuicoes da Etnografia Educacional (Feiman-Nemser e Floden, 1986; Erickson, 1986; Philips, 1972; 1998), Antropologia (Geertz, 1973, 1978; Malinowski,1961;),Sociologia(Bourdieu, 1987,1991}e Linguistica Aplicada (Widdowson,1978, 1991; Almeida Filho, 1993). Os registros desta pesquisa, de base etnografica, foram,coletados em audio e video, notas de campo, relatos informais,entrevistas e questionario. A analise ampla interpreta e discute as maneiras de falar, agir e pensar dos,alunos, contemplando a estruturacao e a organizacao das aulas interdisciplinares mencionadas,e as estruturas de participacao identificadas. Uma aula de revisao foi selecionada para a analise dos dados, tendo em vista sua estruturacao atipica e participacao ativa dos alunos. Os resultados da analise dos dados evidenciam que o conhecimento intuitivo dos alunos ,interfere na sua atuacao no processo de ensino /aprendizagem e e influenciado pelas crencas e pelos valores dos seus interactantes familiares. Considera-se, por fim, uso de LE nas aulas e a importância de se trabalhar a cultura de aprender dos alunos, a partir dos professores, por meio de reflexao, entre outros aspectos. Abstract
Restoration: A Theological Poem in the Book of Mormon

The distinctive Mormon conception of God makes possible a logically coherent reconciliation of the facially incompatible laws of justice and mercy. The Book of Mormon prophet Alma clearly explains how these two great laws may be reconciled through the atonement and repentance that the atonement makes possible. Alma artfully illustrates the relationship between justice and mercy in a carefully crafted theological poem. An important distinctive feature of Mormon theology is its conception of God as a being who is finite and subject to natural law.1 Among other things, this distinctive understanding makes it possible to give a logically coherent account of what justice and mercy are and of how these facially incompatible laws can be reconciled. It provides a framework for fully understanding why both grace and works are necessary for salvation. Though it is sometimes suggested that this finite 1 Eugene England, “The Weeping God of Mormonism,” Dialogue: A Journal of Mormon Thought 35/1 (2002): 63–80; Sterling M. McMurrin, The Theological Foundations of the Mormon Religion (Salt Lake City: University of Utah Press, 1965); Max Nolan, “Materialism and the Mormon Faith,” Dialogue: A Journal of Mormon Thought, 22/4 (1989): 62–75; Blake T. Ostler, Of God and Gods, Exploring Mormon Thought (Salt Lake City: Greg Kofford Books, 2008); B. H. Roberts, Joseph Smith the Prophet–Teacher: A Discourse (Salt Lake City: The Deseret News, 1908); Garland E. Tickemyer, “Joseph Smith and Process Theology,” Dialogue: A Journal of Mormon Thought, 17/3 (1984): 75–85. Restoration: A Theological Poem in the Book of Mormon
Pneumococcal Serotype 5 Colonization Prevalence Among Newly Arrived Unaccompanied Children 1 Year After an Outbreak—Texas, 2015

In 2014, an acute respiratory illness outbreak affected unaccompanied children from Central America entering the United States; 9% of 774 surveyed children were colonized with Streptococcus pneumoniae serotype 5. In our 2015 follow-up survey of 475 children, serotype 5 was not detected, and an interim recommendation to administer 13-valent pneumococcal conjugate vaccine to all unaccompanied children was discontinued.
Charter Schools and Labor Market Outcomes

We estimate the impact of charter schools on early-life labor market outcomes in Texas. We find that, at the mean, charter schools have no impact on test scores and a negative impact on earnings. No Excuses charter schools increase test scores and 4-year college enrollment but have a statistically insignificant impact on earnings, although the coefficient is almost identical to what one would expect given the correlation between test scores and wages. Other types of charter schools decrease test scores, 4-year college enrollment, and earnings, and surprisingly the decrease in wages is more negative than one would anticipate.
Estimation of muscle fatigue during dynamic contractions based on surface electromyography and accelerometry

Common non-invasive measurements of muscle fatigue during dynamic contractions are based on the surface electromyography (SEMG). However, these measurements include movement artefacts such as the change of muscle length and the movement of electrodes. These artefacts significantly contribute to the non-stationary properties of the measured SEMG signal. Consequently, the measurements of the muscle fatigue employ various sensors and signal-processing methods. In this paper, we present a method for the estimation of the fatigue which uses an accelerometer to determine the SEMG segments within which the movement artefacts are resolved and the wide-sense stationarity holds. The fatigue is then estimated by the median frequencies of their power spectra. To illustrate the features of the proposed method, we apply it to the biceps curl exercise.
The role of oblivion, memory size and spatial separation in dynamic language games

In this paper we present some multiagent simulations in which the individuals try to reach a uniform vocabulary to name spatial movements. Each agent has initially a random vocabulary that can be modified by means of interactions with the other agents. As the objective is to name movements, the topic of conversation is chosen by moving. Each agent can remember a finite number of words per movement, with certain strength. We show the importance of the forgetting process and memory size in these simulations, discuss the effect of the number of agents on the time to agree and present a few experiments where the evolution of vocabularies takes place in a divided range.
Roger Yate Stanier, 1916-1982.

SUMMARY: It was with sadness and a sense of grievous loss that microbiologists the world over learned of the death of Roger Stanier on 29 January 1982. He had courageously fought, but had eventually succumbed to, a cancer that had been diagnosed some years earlier and had been countered by a succession of operations. Each was bravely borne and each had been the prelude to a convalescence in which he displayed all of the determination, combative spirit and realism that had marked his scientific life.
11 Neuroblastoma and Whole Genome Searches

Neuroblastoma is the most frequent solid cancer of early childhood, its incidence is 10.2 cases per million children under 15 years of age. Neuroblastoma is thought to be an embryonal tumor that is derived from precursor cells of the peripheral (sympathetic) nervous system (Hoehner et al., 1996; Maris, 2010). The tumor can arise anywhere along the sympathetic chain but is most frequently in the adrenal medulla and paraspinal ganglia (Maris, 2010).
Particle Swarm Optimization in Foreground Segmentation for Live Video

: The goal of foreground segmentation is to extract the desired foreground object from input videos and matting problem means the problem of extracting the foreground object accurately. Over the years, there have been significant amount of efforts on how to extract objects from live videos. The support vector machine (SVM) classification is an active research area which solves classification by finding the best hyperplane that separates all data points of one class from those of the other. In many problems of classification, the performances of SVM are often evaluated by the rate of error depends on the optimization method adopted to label the unknown pixels along the boundary. Here, among the methods of different optimization methods, selected the method of PSO (Particle Swarm Optimization) which makes it possible to optimize the performance of classifier and it will enhance the accuracy of the foreground object segmentation of live videos. PSO is a population based stochastic search process, shaped after the social behavior of a bird flock. It is similar to flock of birds migrating towards some destination, where the intelligence and quality lies in the co-operation of an entire flock. So over the iteration, a group of variables have their values adjusted closer to member whose value is closest to the target at any given moment. Foreground segmentation is addressed in the application of new background substitution and shown to create convincingly high quality composite video.
Reactive Oxygen Species in the Elongation Zone of Maize Leaves Are Necessary for Leaf Extension1

The production and role of reactive oxygen species (ROS) in the expanding zone of maize (Zea mays) leaf blades were investigated. ROS release along the leaf blade was evaluated by embedding intact seedlings in 2′,7′-dichlorofluorescein-containing agar and examining the distribution of 2′,7′-dichlorofluorescein fluorescence along leaf 4, which was exposed by removing the outer leaves before embedding the seedling. Fluorescence was high in the expanding region, becoming practically non-detectable beyond 65 mm from the ligule, indicating high ROS production in the expansion zone. Segments obtained from the elongation zone of leaf 4 were used to assess the role of ROS in leaf elongation. The distribution of cerium perhydroxide deposits in electron micrographs indicated hydrogen peroxide (H2O2) presence in the apoplast. 2′,7′-Dichlorofluorescein fluorescence and apoplastic H2O2 accumulation were inhibited with diphenyleneiodonium (DPI), which also inhibited O⋅ 2 − generation, suggesting a flavin-containing enzyme activity such as NADPH oxidase was involved in ROS production. Segments from the elongation zone incubated in water grew 8% in 2 h. KI treatments, which scavenged H2O2 but did not inhibit O⋅ 2 − production, did not modify growth. DPI significantly inhibited segment elongation, and the addition of H2O2 (50 or 500 μm) to the incubation medium partially reverted the inhibition caused by DPI. These results indicate that a certain concentration of H2O2 is necessary for leaf elongation, but it could not be distinguished whether H2O2, or other ROS, are the actual active agents.
FIB Preparation of a NiO Wedge-Lamella and STEM X-Ray Microanalysis for the Determination of the Experimental k(O-Ni) Cliff-Lorimer Coefficient

Abstract A method for the fabrication of a wedge-shaped thin NiO lamella by focused ion beam is reported. The starting sample is an oxidized bulk single crystalline, ⟨100⟩ oriented, Ni commercial standard. The lamella is employed for the determination, by analytical electron microscopy at 200 kV of the experimental k(O-Ni) Cliff-Lorimer (G. Cliff & G.W. Lorimer, J Microsc 103, 203–207, 1975) coefficient, according to the extrapolation method by Van Cappellen (E. Van Cappellen, Microsc Microstruct Microanal 1, 1–22, 1990). The result thus obtained is compared to the theoretical k(O-Ni) values either implemented into the commercial software for X-ray microanalysis quantification of the scanning transmission electron microscopy/energy dispersive spectrometry equipment or calculated by the Monte Carlo method. Significant differences among the three values are found. This confirms that for a reliable quantification of binary alloys containing light elements, the choice of the Cliff-Lorimer coefficients is crucial and experimental values are recommended.
A Wound Healing Model Using Healing‐impaired Diabetic Mice

A quantitative histological approach was employed to evaluate the effects of basic fibroblast growth factor (bFGF) in healing‐impaired diabetic mice. The dorsal areas of female mutant diabetic mice, C57BL KsJ db/db (Jackson Lab.), were given two 6 mm‐size full thickness wounds with a punch biopsy instrument. After application of bFGF, the wounds were left open. 8 days after wounding, the mice were sacrificed, and histological sections were evaluated using several histological parameters, such as the degree of wound closure, granulation tissue thickness, matrix density, and capillary numbers.
Plasma amino acid levels and insulin secretion in obesity.

Abstract Of 20 plasma amino acids measured, valine, leucine, isoleucine, tyrosine and phenylalanine were increased, and glycine decreased, in obese subjects compared with age- and sex-matched controls. The concentration of each of the amino acids elevated in obesity correlated directly with serum insulin. In addition, these were the amino acids most sensitive to the action of insulin in lowering plasma amino acid levels, as evidenced by a diminution in concentration after glucose infusion. Despite a significantly greater increment in serum insulin in the obese group, the magnitude of the decline in amino acids after glucose administration was identical in the two groups. Hyperaminoacidemia appears to be a manifestation of the insulin ineffectiveness characteristic of obesity. Furthermore, hyperaminoacidemia may provide the feedback signal to the beta cell through which insulin resistance is accompanied by an appropriately augmented secretory rate of insulin.
Advances in Wireless Power Transfer [Mobile Radio]

Research and Technology A group of researchers at the Korea Advanced Institute of Science and Technology (KAIST) have developed a wireless-power transfer (WPT) technology that allows mobile devices to be charged at any location and in any direction, even if the devices are away from the power source. With this technology, so long as mobile users stay in a designated area where the charging is available, the device will pick up power automatically, as needed. KAIST claims that the WPT system is capable of charging multiple mobile devices concurrently and with unprecedented freedom in any direction, even while holding the devices in midair or 0.5 m away from the power source, which is a transmitter. The solution uses highfrequency magnetic materials in a dipole coil structure to build a thin, flat transmitter system shaped into a rectangle with a size of 1 m2.
Experience-dependent changes in NMDAR1 expression in the visual cortex of an animal model for amblyopia

When normal binocular visual experience is disrupted during postnatal development, it affects the maturation of cortical circuits and often results in the development of poor visual acuity known as amblyopia. Two main factors contribute to the development of amblyopia: visual deprivation and reduced binocular competition. We investigated the affect of these two amblyogenic factors on the expression of the NMDAR1 subunit in the visual cortex because activation of the NMDA receptor is a key mechanism of developmental neural plasticity. We found that disruption of binocular correlations by monocular deprivation promoted a topographic loss of NMDAR1 expression within the cortical representations of the central visual field and the vertical and horizontal meridians. In contrast, binocular deprivation, which primarily affects visual deprivation, promoted an increase in NMDAR1 expression throughout the visual cortex. These different changes in NMDAR1 expression can be described as topographic and homeostatic plasticity of NMDA expression, respectively. In addition, the changes in NMDA expression in the visual cortex provide a greater understanding of the neural mechanisms that underlie the development of amblyopia and the potential for visual recovery.
UTILIZAÇÃO DO MESMO PRESTADOR DE SERVIÇOS LOGÍSTICOS (PSL) POR EMPRESAS CONCORRENTES

Considerando que a gestao logistica atribuida a um PSL (Prestadores de Servicos Logisticos) aparece como alternativa a ser adotada pelas empresas, este artigo analisa a contratacao do mesmo PSL por empresas concorrentes. Atraves de um estudo de multi-casos pesquisou-se oito empresas no mercado de alimentacao e um PSL que atende este mercado, na intencao de obter os fatores que mais contribuem na decisao para se escolher ou nao o mesmo provedor. O estudo apresenta os principais fatores pesquisados e conclui que a decisao de escolha ou nao do PSL que atende a concorrentes nao e percebido como um problema que afetara os negocios da empresa contratante. As empresas pesquisadas destacam mais fatores que favorecem a escolha de atuar com o mesmo PSL do que aqueles que impecam a decisao. Todos os fatores apresentados sao percebidos pelas empresas como motivadores para a escolha do mesmo PSL e os beneficios percebidos na incorporacao desses diferenciais tem maior impacto na decisao do que o fato dele atender a um concorrente.
FPGA-based smart sensor implementation with precise frequency to digital converter for flow measurement

The realization of integrated frequency-based smart sensor for flow measurement requires a precise frequency to digital converter. A VHDL-based implementation of such converter for a royalty-free solution with 1 ppm resolution is reported. This work is part of a correlator under development to measure total flow of multiphase fluids. This intellectual property block can also be used with other frequency encoded transducers. The converter has been prototyped with a Xilinx™ XC3S500E Spartan-3E FPGA, and has been tested up to 10MHz.
Avaliação da Viabilidade da Inserção do Comércio Eletrônico em uma Pequena Empresa

De acordo com os dados do Edge Group (1), empresa especializada em produzir numeros sobre a internet, as empresas que se dedicam ao comercio eletronico no Brasil faturaram cerca de US$ 200 milhoes em 1999. A estimativa e de movimentar 4 bilhoes dentro de 3 anos. Sabemos que a empresa precisa estar altamente estruturada em todas as suas atividades, nao apenas na loja virtual. Entendemos que alem dos fatores externos, de marketing e da organizacao interna da empresa, a metodologia utilizada no calculo de custos e de vital importância para manter a competitividade. Uma das principais causas e o fato de seus precos estarem expostos na rede tornando a comparacao rapida e facil, alem de inevitavel tanto pelo cliente como pela concorrencia. Um bom exemplo e o buscador Miner da Universo OnLine. A importância deste estudo para qualquer decisao de investimento na internet e de mostrar que, mesmo com tantos anuncios, ainda e necessario que se analise se a empresa tem estrutura suficiente para a montagem de uma loja virtual. O exemplo utilizado foi escolhido por se tratar de um produto bem conhecido dos autores e do publico em geral, sendo mais pratica a explicacao e avaliacao do produto em questao.