bluuebunny/crossref_metadata_2025 huggingface dataset:
Performance of chip-scale optical frequency comb generators in coherent WDM communications
Authors: Marin-Palomo Pablo , Kemal Juned N. , Kippenberg Tobias J. , Freude Wolfgang , Randel Sebastian , Koos Christian
Published: December 2019

Optical frequency combs have the potential to become key building blocks of wavelength-division multiplexing (WDM) communication systems. The strictly equidistant narrow-band spectral lines of a frequency comb can serve either as carriers for parallel WDM transmission or as local-oscillator (LO) tones for parallel coherent reception. When it comes to highly scalable WDM transceivers with compact form factor, chip-sale comb sources are of particular interest, and recent experiments have demonstrated the viability of such devices for high-speed communications with line rates of tens of Tbit/s. However, the output power of chip-scale comb sources is generally lower than that of their conventional discrete-element counterparts, thus requiring additional amplifiers and impairing the optical signal-to-noise ratio (OSNR). In this paper, we investigate the influence of the power and optical carrier-to-noise ratio (OCNR) of the comb lines on the performance of the WDM link. We identify two distinctively different regimes, where the transmission performance is either limited by the comb source or by the link and the associated in-line amplifiers. We further investigate the impact of line-to-line power variations on the achievable OSNR and link capacity using a soliton Kerr frequency comb as a particularly interesting example. We believe that our findings will help to compare different comb generator types and to benchmark them with respect to the achievable transmission performance.
Realization of real-time DSP for C-band PAM-4 transmission in inter-datacenter network
Authors: Moon Sang-Rok , Lee Seung-Woo , Hwang In-Ki , Kang Hun-Sik , Rha Hae Young , Lee Joon Ki
Published: December 2019

We designed and realized real-time pulse amplitude modulation-4 (PAM-4) digital signal processing (DSP) including forward error correction (FEC) for a C-band inter-datacenter network. The PAM-4 DSP is intended to compensate for chromatic dispersion and provide dispersion tolerance. A decision feedback equalizer (DFE) and maximum likelihood sequence equalizer (MLSE) were employed for the dispersion compensation. A low-density parity check (LDPC) code was used to increase coding gain. The soft-decision Viterbi algorithm (SOVA) was adopted to provide probabilistic information to the LDPC code. For implementation in a real-time field programmable gate arrays (FPGAs), we employed fully parallelized structures. In the design, three LDPC cores were operated in parallel, and the equalizers were also operated with 128 PAM-4 symbols. With the DSP, we empirically proved the feasibility of 25 km transmission without error-floor sign, corresponding to a dispersion compensation capacity of 425 ps/nm. We confirmed 35 km ∼ 85 km error-free transmission for inter-datacenter network.
Boosting few-cycle soliton self-frequency shift using negative prechirp
Authors: Rosenberg Yuval , Drori Jonathan , Bermudez David , Leonhardt Ulf
Published: December 2019

Soliton self-frequency shifting of light pulses in fibers is used for versatile tunable light sources. Few-cycle pulses of high soliton number offer unique advantages, in particular the rate of Raman frequency shift is extremely fast. However, their dynamics is complicated, which makes the optimization of the frequency shifting difficult and sometimes counter-intuitive. We performed a systematic experimental study of the effects of initial prechirp for different pulse energies (for two different fibers). We found that a negative prechirp around C=-0.75 is the most effective (C being the chirp parameter). With such prechirping we managed to cross the severe OH absorption bands of nonlinear photonic crystal fibers. The mechanism behind the effectiveness of the prechirp appears to be the power distribution between the products of soliton fission.
High-performance circular-polarization-sensitive organic photodetectors based on a chiral plasmonic nanocavity
Authors: Kim Hyungchae , Ryoul Park Kyung , Kim Changsoon
Published: December 2019

Chiral photodetectors, optoelectronic devices that can detect circularly polarized light (CPL), have attracted much attention as building blocks of next-generation information technology. However, their performance has been severely limited by the tradeoff between the external quantum efficiency (ηE) and the dissymmetry factor of photocurrent, the latter typically being limited by the small dissymmetry factor of absorption (gA). This work numerically demonstrates that a circular polarization-sensitive organic photodetector (CP-OPD) based on a chiral plasmonic nanocavity can achieve both high ηE and gA. The design of the chiral nanocavity, featuring a circular dichroic plasmonic mode with a high photonic density of states in the subwavelength thick photoactive layer, is decoupled with that of the photoactive layer, which enables the independent control of the circular dichroic and photon-to-charge conversion properties. By investigating the interaction between CPL and the molecules constituting the photoactive layer, a design principle of the plasmonic CP-OPD is established, resulting in superior performance with ηE = 23.8 % and gA = 1.6.
Multi-qubit phase gate on multiple resonators mediated by a superconducting bus
Authors: Han Jin-Xuan , Wu Jin-Lei , Wang Yan , Jiang Yong-Yuan , Xia Yan , Song Jie
Published: December 2019

We propose a one-step scheme for implementing multi-qubit phase gates on microwave photons in multiple resonators mediated by a superconducting bus in circuit quantum electrodynamics (QED) system. In the scheme, multiple single-mode resonators carry quantum information with their vacuum and single-photon Fock states, and a multi-level artificial atom acts as a quantum bus which induces the indirect interaction among resonators. The method of pulse engineering is used to shape the coupling strength between resonators and the bus so as to improve the fidelity and robustness of the scheme. We also discuss the influence of finite coherence time for the bus and resonators on gate fidelity respectively. Finally, we consider the suppression of unwanted transitions and propose the method of optimized detuning compensation for offsetting unwanted transitions, showing the feasibility of the scheme within the current experiment technology.
Ultrastructural Localization of Histidine-rich Glycoprotein in Skeletal Muscle Fibers: Colocalization With AMP Deaminase
Authors: Mattii Letizia , Bianchi Francesco , Falleni Alessandra , Frascarelli Sabina , Masini Matilde , Alì Greta , Chiellini Grazia , Sabbatini Antonietta R.M.
Published: December 2019

Histidine-rich glycoprotein (HRG) is a plasma protein synthesized by the liver. We have given the first evidence of a tissue localization of HRG demonstrating its presence in skeletal muscle, associated with the zinc enzyme AMP deaminase (AMPD1). Moreover, we have shown that muscle cells do not synthesize HRG, but they can internalize it from plasma. We have recently demonstrated by confocal laser scanning microscopy that in human skeletal muscle, HRG is mainly localized in the myofibrils, preferentially at the I-band of the sarcomere, in the sarcoplasm, and in the nuclei. Using transmission electron microscopy and immunogold analysis, we carried out this study on human and rat normal skeletal muscles with the purpose to deepen the ultrastructural localization of HRG in skeletal muscle fibers. The immunogold analysis evidenced the presence of HRG in the sarcomeres, mainly in the I-band and to a less extent in the A-band, in the heterochromatin of nuclei, and in the sarcoplasmic reticulum. The colocalization of HRG and skeletal muscle AMPD1 was also analyzed. A colabeling of HRG and AMPD1 was evident at sarcomeric, sarcoplasmic reticulum, and nuclear levels. The significance of these interesting and new results is discussed in this article.
Iniciativas Kaingang de decolonização da cidade
Authors: Ernesto Pereira Bastos Neto  , Luís Fernando da Silva Laroque
Published: December 2019

O presente estudo analisa o potencial decolonial de uma festa realizada pela comunidade Kaingang Foxá, no município de Lajeado/RS, para a qual a comunidade não indígena foi convidada a conhecer a cultura Kaingang.  Ainda que marcada pela sobreposição territorial e a multiplicidade étnica, a região do Vale do Taquari/RS costuma ser identificada como berço de imigrantes, alemães e italianos principalmente. Neste contexto, as reocupações territoriais dos Kaingang, desde o final do século XX, intensificam o estranhamento e preconceito por parte da população local. Neste sentido, o presente texto além de evidências históricas da presença indígena nestes espaços, apresenta uma experiência de mediação da participação de estudantes da educação básica na realização de um ritual tradicional Kaingang, com vistas a promover princípios fundamentais da Lei 11.645/08, como o ensino sob o ponto de vista do protagonismo indígena.
A Selective Review of Literature on Research Data Management in Academic Libraries
Authors: Payal Ms , Awasthi Shipra , Tripathi Manorama
Published: December 2019

The present paper dwells on Research Data Management (RDM), its need, importance, the behaviour of the researchers in different disciplines towards data sharing and the role of libraries in extending data management services. The policies of publishers and funding bodies for sharing research data have also been described. It underlines that the library professionals should have a comprehensive understanding of the emerging issues, trends and challenges about the research data management to deploy appropriate services for the researchers. It highlights various resources on research data management, which may serve as guidelines for library professionals and researchers. The study will prove beneficial to library professionals and inspire them to extend RDM services in their organisations The paper concludes by advocating that the library professionals must update and upskill themselves with new trends, tools and techniques to provide RDM services. They should sensitise researchers to make their datasets accessible for reuse and sharing.
Reusing Data Technical and Ethical Challenges
Authors: Boté Juan-José , Termens Miquel
Published: December 2019

Research centres, universities and public organisations create datasets that can be reused in research. Reusing data makes it possible to reproduce studies, generate new research questions and new knowledge, but it also gives rise to technical and ethical challenges. Part of these issues are repositories interoperability to accomplish FAIR principles or issues related to data privacy or anonymity. At the same time, funding institutions require that data management plans be submitted for grants, and research tends to be increasingly interdisciplinary. Interdisciplinarity may entail barriers for researchers to reuse data, such as a lack of skills to manipulate data, given that each discipline generates different types of data in different technical formats, often non-standardized. Additionally, the use of standards to validate data reuse and better metadata to find appropriate datasets seem necessary. This paper offers a review of the literature that addresses data reuse in terms of technical, ethical-related issues.
Reviewer List DJLIT, Vol 39, 2019
Authors: DJLIT Editor
Published: December 2019

REVIEWER LIST DJLIT, 2019
Different lives and shared practices: Sociology of women in Turkey
Authors: Aydoğmuş Ördem Özlem
Published: December 2019

Although there have been various studies on women and feminism since 1960s, gender inequalities are still experienced in the modern era. Paradigmatic changes have been experienced in western societies and communities that have been affected by these western theories and practices. However, women still undergo hard times in social and business lives. This study aims to focus on social practices of women that have different experiences. The study is descriptive and exploratory in nature. A semi-structured interview was administered. The participants ( N=17) were involved in the study at a Turkish university. Thus, this study intended to bring theory and practice together at the university. Each of the participants had different socio-economic backgrounds. The study was carried out in four sessions. In each session women received training from different experts. The results of the study show that the participants developed positive attitudes towards training regarding women ranging from art to law and that these educational practices should be sustained in the society.
Inclusion effect of ginger and turmeric mixture combined with Lactobacillus spp. isolated from rumen fluid of cattle on health status and growth of broiler
Authors: Risdianto D. , Suthama N. , Suprijatna E. , Sunarso S.
Published: December 2019

This study was conducted to evaluate the combination of ginger and turmeric extracts added with Lactobacillus spp. (GTL) on body resistance and productivity of broilers. 576 broilers with an initial body weight of 36 ± 0.99 g were used and were observed for 35 days. GTL containing ginger extract (0.2 g/liter), turmeric extract (0.4 g/liter) and Lactobacillus spp. (2,997 x 107 cfu/ml), and was given since 1-day old. Parameters observed were bursa fabriscius, spleen, and thymus weights, gluthationine peroxidase (GSH-Px), superoxide dismutase (SOD), Lactobacillus spp., Coliform, and Eschericia coli, feed consumption, body weight gain, and feed conversion ratio (FCR). A completely randomized design (CRD) was assigned with 3x4 factorial pattern (3 types of feed, 4 levels of GTL), with 4 replications (12 birds each). First factor, types of feed (A): self-formulated feed (A1), combination of self-formulated and commercial feed with 50 portion each (A2) and commercial feed (A3). Second factor, levels of GTL (B): 0 ml (B0), 2 ml (B2), 4 ml (B4) and 6 ml (B6) per litre drinking water. Data were subjected to ANOVA and continued to Duncan test at 5% probability. Results indicated that self-formulated feed with inclusion of GTL at 4 ml (A1B4) improve body resistance and increase production performance of broilers.
Enhanced terahertz emission from imprinted halide perovskite nanostructures
Authors: Korolev Viacheslav I. , Pushkarev Anatoly P. , Obraztsov Petr A. , Tsypkin Anton N. , Zakhidov Anvar A. , Makarov Sergey V.
Published: December 2019

Lead halide perovskites were known to be a prospective family of materials for terahertz (THz) generation. On the other hand, perovskite nanostructures, nanoantennas, and metasurfaces allow tailoring perovskites optical characteristics, resulting in more efficient interaction with incident or emitted light. Moreover, the perovskites are robust materials against formation of defects caused by mechanical deformations and can be efficiently nanostructured by various high throughput methods. In this work, we have enhanced THz emission from MAPbI3 perovskite upon femtosecond laser irradiation using nanoimprint lithography. The formed nanostructures not only improve absorption of the incident laser pulses, but also lead to a non-symmetric near-field distribution. As a result, we have enhanced the efficiency of THz emission from the nanostructured perovskite by 3.5 times as compared with a smooth perovskite film. Our results paved the way for a new application of large-scale perovskite nanostructuring, making halide perovskites competitive with more expensive conventional semiconductors for THz generation.
Ultrastrong coupling effects in molecular cavity QED
Authors: Calvo Jorge , Zueco David , Martin-Moreno Luis
Published: December 2019

The spectrum and energy dynamics for a system that comprises a molecule interacting with a cavity photon is analyzed, taking into account the effect of both molecular vibrations and counter-rotating terms (CR) in the dipole Hamiltonian. The CR terms do not have a strong effect on the spectrum even for moderately large values of the exciton-photon interaction. However, it is shown that the polariton subspace is governed by an effective Quantum-Rabi Hamiltonian, where polaritons act as a two-level system and the phonons play the role of cavity photons. The effect of the CR terms is amplified in the dynamics: as the vibrations reduce the effective photon-exciton coupling, small Bloch-Siegert energy shifts can bring the system out of resonance.
Darkfield colors from multi-periodic arrays of gap plasmon resonators
Authors: Ng Ray Jia Hong , Krishnan Ravikumar Venkat , Wang Hao , Yang Joel K.W.
Published: December 2019

We present results on colors of metal disk arrays viewed under a darkfield microscope and show that the darkfield colors can be manipulated independently of the brightfield colors. We investigate the appearance of colors as disks are clustered to form a new array with double the pitch and a basis of four disks. These structures of aluminum disks on aluminum oxide on aluminum have resonances in the visible spectrum, so by arranging them in small tight clusters, a coupled plasmon resonant mode is produced at shorter wavelengths. This feature causes a reflectance minimum and leads to an increase in the gamut of darkfield colors produced. These colors are tuned by changing the size of the disk and the inter-disk gap within the clusters. Interestingly, the intensities of the reflectance peaks also demonstrate good agreement with the Fourier series coefficients for square waves. Polarization-tunable colors are also demonstrated by designing rectangular arrays that have dissimilar periods along the two orthogonal axes of the array, and a four-level security tag is fabricated that encodes images for viewing under brightfield, darkfield (both x and y polarization), and infrared illumination.
Crystal structure of bis-[N-(1-pyrazin-2-yl-ethylidene)-cyanoacetic acid-hydrazonato-κ3
O,N,N′)]-zinc(II), C18H16N10O2Zn
Authors: Gao Xiao-Li , Geng Rong-Li , Chen Pai
Published: December 2019

C18H16N10O2Zn, triclinic, P1̄ (no. 2), a = 10.218(7) Å, b = 10.490(7) Å, c = 11.101(8) Å, α = 79.590(11)°, β = 65.913(12)°, γ = 66.785(10)°, V = 998.0(12) Å3, Z = 2, R
gt(F) = 0.0516, wR
ref(F
2) = 0.1323, T = 293(2) K.
The VES KM: a pathway for protein folding in vivo
Authors: Cruzeiro Leonor
Published: December 2019

While according to the thermodynamic hypothesis, protein folding reproducibility is ensured by the assumption that the native state corresponds to the minimum of the free energy in normal cellular conditions, here, the VES kinetic mechanism for folding in vivo is described according to which the nascent chain of all proteins is helical and the first and structure defining step in the folding pathway is the bending of that initial helix around a particular amino acid site. Molecular dynamics simulations are presented which indicate both the viability of this mechanism for folding and its limitations in the presence of a Markovian thermal bath. An analysis of a set of protein structures formed only of helices and loops suggests that bending sites are correlated with regions bounded, on the N-side, by positively charged amino acids like Lysine and Histidine and on the C-side by negatively charged amino acids like Aspartic acid.
Recent developments on polymeric membranes for CO2 capture from flue gas
Authors: Han Yang , Ho W.S. Winston
Published: December 2019

Polymeric membranes have been widely considered as one of the next-generation technologies for CO2 capture from fossil fuel-derived flue gases. This separation modality requires novel polymeric materials that possess efficient CO2/N2 separation properties, as well as chemical and mechanical stability for a multiyear membrane lifetime. In this paper, recent developments in polymeric membranes tailored for post-combustion carbon capture are reviewed. The selected polymeric materials encompass ether oxygen-rich polymers, polynorbornenes, ionic liquid membranes, and facilitated transport membranes. In each of the selected materials, noteworthy research efforts for material design and membrane formation are highlighted. The performances of the selected materials are compared in the CO2/N2 selectivity-CO2 permeance plot. As the only class of materials reviewed herein that have demonstrated the fabrication of thin-film composite membranes in scale, facilitated transport membranes have shown both high selectivity and permeance at relevant conditions for post-combustion carbon capture. However, comprehensive field tests are needed to resolve the technical gap between the material development and the commercial application.
Performance Optimization of Ship Course Via Artificial Neural Network and Command Filtered Cdm-Backstepping Controller
Authors: Haouari Fouad , Gouri Rabah , Bali Nourdine , Tadjine Mohamed , Boucherit Mohamed Seghir
Published: December 2019

This paper proposes a robust nonlinear ship course controller, under the control of which the system is globally asymptotically stabilized with high control quality. The proposed controller is synthesized by combining coefficient diagram method and command filtered backstepping based on first order filter to avoid the complex analytic derivation of the virtual control, the controller parameter are tuned using radial basis function neural network, It can not only obtain a higher accuracy in ship course controlling, but also infinitely approach the nonlinear system with quicker and more stable convergence. The simulation results illustrate that the projected controller shortens the settling time evidently with good system stability. It has a better performance than the traditional controllers.
Review on Investigations Carried out on Burr Formation in Drilling During 1975 To 2020
Authors: Sreenivasulu Reddy , SrinivasaRao Chalamalasetti
Published: December 2019

Burr formation during machining process is a vital role in the assembly lines, even though it is a non value added process but also care should be taken while machining due to non avoiding output generated at the end of material removal process. At present almost all manufacturing sectors faces lot of problems due to these issues and invest more money towards deburring still advanced manufacturing methods available. So, complete burr removal is not possible and only thing is reducing utmost by applying better optimizing techniques, to develop good mechanization methods, selecting optimum process parameters and their conditions. The aim this paper deals about research methods implemented by earlier authors on burr formation especially in drilling. The reason why the present authors selected the drilling is number of automotive and aircraft engineers struggling during structural building works because of these burrs wherever precise measurement needed. In this connection, the authors concentrate their study on previous researcher works related to investigations on experimentation, developing new theoretical mechanisms to minimize burrs, adapt a new technologies available to modify drill bit geometries such that improvement in the minimization of burrs. Finally found that research contributions by changing their drill bit geometry and cutting process parameters have been focused on utilizing the methodologies, changing time to time. In analyzing the performance characteristics with that of input process parameters, several mathematical and empirical models were developed by many researchers so far in their works. Efforts have been made in the direction of optimization of process parameters in drilling for minimizing burr size.
Additive Technology Parts and their Material Properties
Authors: Beniak Juraj , Matúš Miloš , Križan Peter , Holdy Michal
Published: December 2019

Additive technology uses a wide range of materials. Beginning from plastic material, different types of resin but also steel material. Presented paper deals with Fused Deposition Modeling technology which is focused to processing of plastic materials based on polymers. Mostly used are ABS plastic (Acrylonitrile Butadiene Styrene), Nylon, Polycarbonate (PC), or composites based on different polymers. New devices designed for the production of plastic parts are able to work also with environmentally friendly and biodegradable materials as Polylactic acid (PLA). The aim of this paper is to show the possibility of using materials based on organic polymers whose properties are comparable to conventionally used polymers. Presented are measured and statistically evaluated data related to basic properties of PLA material.
“Flat/steep band model” for superconductors containing Bi square nets
Authors: Fu Juntao , Xu Jing , Lin Jing , Köhler Jürgen , Deng Shuiquan
Published: December 2019

The crystal structures of a new family of superconductors containing a Bi square net and their electronic structures around the Fermi level have been reviewed. The structures of these compounds can be viewed as stacked layers denoted by [Bi][(RE)(M
2Bi2)(RE)] RE = rare earth or alkaline earth metal, M = transition metal. Flat/steep band features are shown to exist in all these new superconductors, though the pairing mechanisms may be very different. The Dirac Fermion behavior is reviewed and its implications are discussed.
A New Mouse Line Reporting the Translation of Brain-Derived Neurotrophic Factor Using Green Fluorescent Protein
Authors: Wosnitzka Erin , Nan Xinsheng , Nan Jeff , Chacón-Fernández Pedro , Kussmaul Lothar , Schuler Michael , Hengerer Bastian , Barde Yves-Alain
Published: December 2019

While BDNF is receiving considerable attention for its role in synaptic plasticity and in nervous system dysfunction, identifying brain circuits involving BDNF-expressing neurons has been challenging. BDNF levels are very low in most brain areas, except for the large mossy fiber terminals in the hippocampus where BDNF accumulates at readily detectable levels. This report describes the generation of a mouse line allowing the detection of single brain cells synthesizing BDNF. A bicistronic construct encoding BDNF tagged with a P2A sequence preceding GFP allows the translation of BDNF and GFP as separate proteins. Following its validation with transfected cells, this construct was used to replace the endogenousBdnfgene. Viable and fertile homozygote animals were generated, with the GFP signal marking neuronal cell bodies translating theBdnfmRNA. Importantly, the distribution of immunoreactive BDNF remained unchanged, as exemplified by its accumulation in mossy fiber terminals in the transgenic animals. GFP-labeled neurons could be readily visualized in distinct layers in the cerebral cortex where BDNF has been difficult to detect with currently available reagents. In the hippocampal formation, quantification of the GFP signal revealed that <10% of the neurons do not translate theBdnfmRNA at detectable levels, with the highest proportion of strongly labeled neurons found in CA3.
ICAM5 as a Novel Target for Treating Cognitive Impairment in Fragile X Syndrome
Authors: Pei Ya-ping , Wang Yue-yi , Liu Dan , Lei Hui-yang , Yang Zhi-hao , Zhang Zi-wei , Han Man , Cheng Ke , Chen Yu-shan , Li Jin-quan , Cheng Gui-rong , Xu Lang , Wu Qing-ming , McClintock Shawn M. , Yang Ying , Zhang Yong , Zeng Yan
Published: December 2019

Fragile X syndrome (FXS) is the most common inherited form of intellectual disability, resulted from the silencing of theFmr1gene and the subsequent loss of fragile X mental retardation protein (FMRP). Spine dysgenesis and cognitive impairment have been extensively characterized in FXS; however, the underlying mechanism remains poorly understood. As an important regulator of spine maturation, intercellular adhesion molecule 5 (ICAM5) mRNA may be one of the targets of FMRP and involved in cognitive impairment in FXS. Here we show that inFmr1KO male mice, ICAM5 was excessively expressed during the late developmental stage, and its expression was negatively correlated with the expression of FMRP and positively related with the morphological abnormalities of dendritic spines. Whilein vitroreduction of ICAM5 normalized dendritic spine abnormalities inFmr1KO neurons, andin vivoknockdown of ICAM5 in the dentate gyrus rescued the impaired spatial and fear memory and anxiety-like behaviors inFmr1KO mice, through both granule cell and mossy cell with a relative rate of 1.32 ± 0.15. Furthermore, biochemical analyses showed direct binding of FMRP with ICAM5 mRNA, to the coding sequence of ICAM5 mRNA. Together, our study suggests that ICAM5 is one of the targets of FMRP and is implicated in the molecular pathogenesis of FXS. ICAM5 could be a therapeutic target for treating cognitive impairment in FXS.

SIGNIFICANCE STATEMENTFragile X syndrome (FXS) is characterized by dendritic spine dysgenesis and cognitive dysfunctions, while one of the FMRP latent targets, ICAM5, is well established for contributing both spine maturation and learning performance. In this study, we examined the potential link between ICAM5 mRNA and FMRP in FXS, and further investigated the molecular details and pathological consequences of ICAM5 overexpression. Our results indicate a critical role of ICAM5 in spine maturation and cognitive impairment in FXS and suggest that ICAM5 is a potential molecular target for the development of medication against FXS.
El papel de los centros de poder en el proceso de toma de decisión de las políticas públicas y en la creación de la agenda política
Authors: Romero Tarín Adela , Canales Aliende José Manuel
Published: December 2019

El proceso de toma de decisión por parte de los gobiernos marca el rumbo de las políticas públicas. En los centros de poder se priorizan qué políticas públicas se van a implementar a través de una selección de instrumentos, actores y recursos. Los centros de poder están compuestos por decisores políticos, y representantes de las diferentes esferas sociales y económicas, siendo el espacio de reflexión donde las problemáticas sociales comienzan a orientarse hacia su resolución. Se decide en estos espacios qué demandas sociales deben ser solventadas a corto, medio o largo plazo, y por tanto, si estas deben incluirse en la agenda política y su prioridad. Este artículo indaga sobre la importancia de estos centros de poder que protagonizan la génesis de las políticas públicas, cuestionando cómo influyen en la elaboración final de la agenda política a partir de los factores de liderazgo y tecnocracia. En este texto se analiza el papel que los centros de poder desarrollan en el proceso de toma de decisión, siendo entendidos como el timón del gobierno, aquellos capaces de impulsar los objetivos prioritarios de manera coherente. Estos pueden ser un valioso instrumento para asegurar que las políticas del gobierno sean efectivamente implementadas, y produzcan resultados exitosos para los ciudadanos (Alessandro et. ál., 2014:16). Esta propuesta investigadora emplea una metodología cualitativa a partir de un enfoque descriptivo, analítico y crítico, estructurado en cinco epígrafes, incluyendo referencias y fuentes actuales del campo de las políticas públicas y de las ciencias políticas.
A Screen for Gene Paralogies Delineating Evolutionary Branching Order of Early Metazoa
Authors: Erives Albert , Fritzsch Bernd
Published: December 2019

The evolutionary diversification of animals is one of Earth’s greatest marvels, yet its earliest steps are shrouded in mystery. Animals, the monophyletic clade known as Metazoa, evolved wildly divergent multicellular life strategies featuring ciliated sensory epithelia. In many lineages epithelial sensoria became coupled to increasingly complex nervous systems. Currently, different phylogenetic analyses of single-copy genes support mutually-exclusive possibilities that either Porifera or Ctenophora is sister to all other animals. Resolving this dilemma would advance the ecological and evolutionary understanding of the first animals and the evolution of nervous systems. Here we describe a comparative phylogenetic approach based on gene duplications. We computationally identify and analyze gene families with early metazoan duplications using an approach that mitigates apparent gene loss resulting from the miscalling of paralogs. In the transmembrane channel-like (TMC) family of mechano-transducing channels, we find ancient duplications that define separate clades for Eumetazoa (Placozoa + Cnidaria + Bilateria) vs. Ctenophora, and one duplication that is shared only by Eumetazoa and Porifera. In the Max-like protein X (MLX and MLXIP) family of bHLH-ZIP regulators of metabolism, we find that all major lineages from Eumetazoa and Porifera (sponges) share a duplicated gene pair that is sister to the single-copy gene maintained in Ctenophora. These results suggest a new avenue for deducing deep phylogeny by choosing rather than avoiding ancient gene paralogies.
O pensamento visual epsteiniano: rosto, fluido e animismo
Authors: Júnior Edson Pereira da Costa
Published: December 2019

Os escritos teóricos e os filmes de Jean Epstein frequentemente exaltam o olho da câmera e a inteligência da máquina cinematográfica. No emaranhado de caminhos que se desdobram a partir desse entusiasmo diante do dispositivo, típico das vanguardas europeias do início do século XX, tentamos identificar as bases para o pensamento visual do autor. A análise se concentra sobre a figuração do rosto humano, a lógica do fluido e o princípio animista. Trata-se de um tripé presente tanto na produção teórica como fílmica de Epstein, e essencial para compreender a relação tão cara à sua obra entre o cinema e o tempo.
Iniciativas internacionais: um estudo comparativo sobre a construção da comunicação organizacional no Brasil e na França1
Authors: De Souza Alice Zozima Paris Rego , Kunsch Margarida Maria Krohling
Published: December 2019

Por meio de uma pesquisa exploratória, de caráter teórico-reflexivo, sobre a evolução da institucionalização cognitiva e social de um campo de disciplina, este artigo procura mostrar os desafios da construção da comunicação organizacional entre dois países – a França e o Brasil. A comunicação internacional e a comunicação intercultural são utilizadas pelas práticas profissionais e acadêmicas por intermédio da influência política e econômica dos Estados Unidos. O texto esclarece as particularidades e os pontos de interação de cada tipo de comunicação, visando assim compreender as nuances, os pontos de conexão e as pistas de colaboração entre elas.
Economia psíquica dos algoritmos e laboratório de plataforma: mercado, ciência e modulação do comportamento
Authors: Bruno Fernanda Glória , Bentes Anna Carolina Franco , Faltay Paulo
Published: December 2019

O extensivo e ininterrupto monitoramento de nossas ações online integram as engrenagens de um investimento econômico que direciona imensos volumes de dados para aplicação de estratégias de modificação do comportamento humano. Nesse contexto, observamos um aumento do interesse tecnocientífico, econômico e social em processos algorítmicos de extração e utilização de dados psíquicos e emocionais. Este artigo tem como objetivo apresentar reflexões sobre essa Economia Psíquica dos Algoritmos, enfatizando sua inquietante dimensão laboratorial. Analisando casos recentes e aspectos da arquitetura das plataformas digitais, mostraremos como o uso desses dados articula três camadas: a econômica; a epistemológica; e a de gestão e controle comportamental. Notaremos que o cruzamento dessas camadas tornam as fronteiras  entre o laboratório e a vida social extremamente tênues, o que nos convoca a recolocar o problema das relações entre ciência, tecnologia e sociedade nesse novo cenário.
Dynamic identification of boundary conditions for convection-diffusion transport model in the case of noisy measurements
Authors: Kuvshinova Anastasia N.
Published: December 2019

The paper addresses the problem of dynamic identification of mixed boundary conditions for one-dimensional convection-diffusion transport model based on noisy measurements of the function of interest. Using finite difference method the original model with the partial differential equation is replaced with the discrete linear dynamic system with noisy multisensor measurements in which boundary conditions are included as unknown input vector. To solve the problem, the algorithm of simultaneous estimation of the state and input vectors is used. The results of numerical experiments are presented which confirm the practical applicability of the proposed method.
Dynamics of viscoelastic element of flow channel
Authors: Eremeeva Nina I. , Velmisov Petr A.
Published: December 2019

We consider the plane problem of aerohydroelasticity on small oscillations arising during bilateral flow around a viscoelastic element located on the rectilinear wall of an infinite channel. A mathematical model describing the problem in a linear formulation and corresponding to small perturbations of homogeneous subsonic flows and small deflections of a viscoelastic element is formulated. Using the methods of the theory of functions of a complex variable, the solution of the problem is reduced to the study of the integro-differential equation with partial derivatives with respect to the deflection function of the element. To solve this equation, a numerical method based on the application of the Bubnov-Galerkin method is proposed, followed by the reduction of the resulting system of integro-differential equations to the Volterra vector equation of the second kind. On the basis of the developed numerical method the computer simulation of the dynamics of the deformable element is carried out.
Diversity, equity, and access in psychedelic medicine
Authors: Williams Monnica T. , Labate Beatriz C.
Published: December 2019

Although it is exciting to witness the culmination of decades of drug policy advocacy and clinical research, the psychedelic science movement struggles with many of the same social issues that plague healthcare in general. The healing properties of plant medicines and their derivatives were originally brought to Western consciousness by indigenous cultures from all over the world. These practices are now being adapted to Western models of healthcare, in part, to achieve governmental approval as medical treatments. The current models of psychedelic psychotherapy being utilized in clinical trials are resource-intensive and therefore likely to remain out of reach for the socioeconomically disadvantaged if approved as medical treatments. Moreover, people of color and women are uncommon in leadership positions in the psychedelic research community, and few people of color are included as research participants in psychedelic studies. This piece introduces a special issue with a focus on issues of diversity, equity, and accessibility in psychedelic medicine.
O CONTEXTO DA EDUCAÇÃO PROFISSIONAL E TECNOLÓGICA BRASILEIRA E O ENSINO INTEGRADOR NO IFTM – CAMPUS UBERABA
Authors: Borges Patricia Ferreira Bianchini
Published: December 2019

A recente expansão da rede federal de Institutos de Educação, Ciência e Tecnologia está intimamente relacionada com a necessidade de formação profissional, científica e tecnológica dos estudantes, que têm a oportunidade de se prepararem para a vivência do mundo do trabalho, assim como para sua formação humana integral, condição essencial para o exercício da cidadania. De posse dessa informação, neste artigo, vamos discutir a missão do Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro – Campus Uberaba (IFTM - Campus Uberaba) no contexto da educação profissional tecnológica brasileira, em especial no contexto do ensino integrador proposto no Curso Técnico em Suporte e Manutenção em Informática integrado ao Ensino Médio do IFTM – Campus Uberaba.Palavras-chave: Educação profissional.  Ensino integrado. Formação do aluno.
A Evasão Escolar no PRONATEC: a realidade em Cursos de Formação Inicial e Continuada no Instituto Federal de Minas Gerais - Campus Bambuí
Authors: Corrêa da Costa Márcia Helena Batista , Ribeiro da Costa Flaviane
Published: December 2019

A questão da evasão escolar é uma realidade presente em todas as modalidades de ensino e um desafio a ser superado na educação. Pode ser motivada por inúmeros fatores, como a dificuldade do estudante em conciliar trabalho e estudo, a falta de interesse pelos conteúdos escolares, as dificuldades de aprendizagem, a desestruturação familiar, dentre outros. Diante da importância e relevância deste tema, procurou-se compreender, neste trabalho, quais os motivos da evasão escolar no curso de formação inicial e continuada em pedreiro de alvenaria do Pronatec, ofertado na cidade de Bambuí, sob responsabilidade do IFMG. A escolha por este curso justifica-se por ter sido o que apresentou o maior índice dentre os cursos em andamento durante o período da pesquisa. Para isso, além da pesquisa documental e bibliográfica, foram realizadas entrevistas com os gestores, professores e alunos evadidos do curso em questão.
PRESPECTIVAS DA EDUCAÇÃO PROFISSIONAL DIANTE DO CONTEXTO ATUAL DO MUNDO DO TRABALHO
Authors: Vieira Josimar de Aparecido , Radke Cristiane Longaray
Published: December 2019

Este trabalho é parte integrante de uma pesquisa desenvolvida no Curso de Pós-Graduação em Teorias e Metodologias da Educação intitulada “Desafios da educação profissional e tecnológica diante das expectativas dos estudantes” do IFRS – Campus Sertão. Teve como objetivo compreender as finalidades da educação profissional diante do contexto atual do mundo do trabalho. Na primeira parte, denominada “Globalização e o mundo do trabalho” são examinados aspectos relacionados com o mundo do trabalho na atualidade tendo a dimensão da globalização como conjuntura de análise. Na segunda parte, denominada “Educação profissional e suas finalidades”, são apresentadas finalidades da educação profissional, vista como possibilidade concreta de ingresso e manutenção das pessoas no mundo do trabalho. Para isto torna-se necessário que seja tratada como processo educativo ampliado e relacionado com as exigências do mundo do trabalho. Na produção dessas partes estão envolvidos trabalhos que foram desenvolvidos e publicados na literatura acadêmica, abarcando posições e tendências de autores que vêm pesquisando a referida temática nos últimos anos. Os resultados deste estudo apontam para a compreensão de que a educação profissional precisa rever suas finalidades no sentido de incorporar conhecimentos nos currículos e na prática educativa voltada para um mundo de trabalho que mantém sintonia com demandas provenientes da sociedade.
A PESQUISA COMO PRINCÍPIO PEDAGÓGICO E SUA MATERIALIDADE LINGUÍSTICA: ESTUDANTES DA EDUCAÇÃO PROFISSIONAL TÉCNICA DE NÍVEL MÉDIO
Authors: Valer Salete
Published: December 2019

As políticas educativas nacionais apontam a pesquisa como princípio pedagógico e a tecnologia de informação e comunicação como conteúdos essenciais para a formação geral e profissional. Esta pesquisa em Psicolinguística Aplicada objetiva testar estratégias para a ampliação da competência produtiva escrita dissertativa por meio da unidade de ensino ensaio curto dissertativo na Educação Profissional Técnica de Nível Médio. A metodologia foca na pesquisa-ação, o teste como instrumento e estudantes do Curso Técnico Subsequente em Panificação e Confeitaria como sujeitos da pesquisa. Os resultados indicam que todos os estudantes que participaram das atividades propostas na intervenção qualificaram em grande escala a textualização das variáveis em análise, porém os estudantes com déficit no uso das TIC tiveram dificuldades em desenvolver todo o conteúdo selecionado. Conclui-se que a habilidade com essas tecnologias se torna indispensável para a prática efetiva do letramento conforme está sendo proposto nas diretrizes para a qualidade da educação.
AVALIAÇÃO INSTITUCIONAL COMO MECANISMOS DE GESTÃO DEMOCRÁTICA DA ESCOLA PÚBLICA: REFLEXÕES A PARTIR DO ESTÁGIO SUPERVISIONADO – GESTÃO NO INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA CATARINENSE
Authors: Souza Paula de , Wisenteiner Sara , Silva Filomena Lucia Gossler Rodrigues
Published: December 2019

Este estudo apresenta alguns apontamentos acerca da Gestão Escolar, com o objetivo de conhecer e compreender o campo da atuação profissional do pedagogo na gestão, a partir das observações e coletas de dados realizadas na E.E.B. Pres. João Goulart, como componente curricular obrigatório para a disciplina de Estágio Supervisionado em Gestão. Como base teórica utilizou-se os autores PARO (2012), SOUSA (1999) e SOUZA (2009). Este estudo permitiu considerar a avaliação institucional como importante mecanismo a ser utilizado pela equipe gestora, a servir como um instrumento de construção e reconstrução da prática educativa, na tentativa de transformar a educação que está sendo ofertada. Concluiu-se também, que tal transformação inicia-se no valor em que damos a ela, quando nos permitimos passar por processos de avaliação, de significação e ressignificação.
O ESTÁGIO SUPERVISIONADO NOS CURSOS DE FORMAÇÃO DE PROFESSORES PARA A EDUCAÇÃO PROFISSIONAL
Authors: Vieira Marilandi Maria Mascarello , Vieira Josimar de Aparecido
Published: December 2019

O estágio supervisionado, se bem planejado e conduzido, constitui-se num momento importante de construção de saberes sobre a docência e contribui para a formação docente. Assim, o objeto de estudo do presente trabalho é o estágio supervisionado nos cursos de formação de professores para a educação profissional e tem por objetivo explicitar a organização e as principais características dos estágios supervisionados que neles são desenvolvidos. Foi elaborado com base na análise de produções acadêmicas sobre o tema e contém o relato das atividades desenvolvidas no estágio supervisionado que ocorre em dois cursos de formação de professores para os componentes curriculares da área técnica oferecidos no Campus Sertão do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul. Aponta as contribuições de Pimenta (2011), Pimenta: Lima (2009), Almeida; Pimenta (2014), Canário (2001), Kulcsar (2012) e Piconez (2012), dentre outros. Os resultados indicam que os estágios supervisionados nos cursos de formação de professores para a educação profissional não tem se configurado como objeto de estudos acadêmicos ou relatos de experiências e, assim, nesse texto, visando contribuir para a sistematização de estudos sobre o tema, descrevemos a experiência do estágio supervisionado no IFRS - Campus Sertão que demonstra que o desenvolvimento do estágio supervisionado no processo de formação inicial de professores para a educação profissional se traduz como oportunidade para o estudante compreender criticamente o contexto onde irá atuar profissionalmente.
MULTICULTURALISMO E CURRÍCULO: UM ESTUDO SOBRE A SITUAÇÃO DO ESTUDANTE AFRICANO EM UMA ESCOLA DE FORTALEZA
Authors: Silva Antônio Vinnie , Fernandes Natal Lânia
Published: December 2019

O presente estudo tem por objetivo desenvolver uma reflexão acerca da situação dos estrangeiros africanos que vêm à cidade de Fortaleza-CE para estudar em escolas de cursos técnicos e profissionalizantes. Com base nos estudos sobre multiculturalismo (WERNECK, 2008; CANEN, 2007), Currículos (SILVA, 1999; GIMENO SACRISTÁN (2000) e relações étnico-raciais (COELHO, 2005) foi  realizado  um estudo de caso, com entrevistas semiestruturadas a um estudante guineense e a um membro da secretaria de uma escola técnica da rede privada de ensino de Fortaleza-CE.  A pesquisa revelou que há, com relação ao estudante africano, distanciamento e falta de adequação curricular para acolhê-lo. Tal situação  ocorre desde o primeiro dia de ida ao ambiente escolar e atinge, entre outros aspectos, a vestimenta e o idioma dos estrangeiros de origem africana: um misto de português com crioulo, que são duas línguas típicas de muitos países africanos.