bluuebunny/crossref_metadata_2025 huggingface dataset:
SU(2) Yang–Mills Theory: Waves, Particles, and Quantum Thermodynamics
Authors: Hofmann Ralf
Published: August 2016

We elucidate how Quantum Thermodynamics at temperature T emerges from pure and classical S U ( 2 ) Yang–Mills theory on a four-dimensional Euclidean spacetime slice S 1 × R 3 . The concept of a (deconfining) thermal ground state, composed of certain solutions to the fundamental, classical Yang–Mills equation, allows for a unified addressation of both (classical) wave- and (quantum) particle-like excitations thereof. More definitely, the thermal ground state represents the interplay between nonpropagating, periodic configurations which are electric-magnetically (anti)selfdual in a non-trivial way and possess topological charge modulus unity. Their trivial-holonomy versions—Harrington–Shepard (HS) (anti)calorons—yield an accurate a priori estimate of the thermal ground state in terms of spatially coarse-grained centers, each containing one quantum of action ℏ localized at its inmost spacetime point, which induce an inert adjoint scalar field ϕ ( | ϕ | spatio-temporally constant). The field ϕ , in turn, implies an effective pure-gauge configuration, a μ gs , accurately describing HS (anti)caloron overlap. Spatial homogeneity of the thermal ground-state estimate ϕ , a μ gs demands that (anti)caloron centers are densely packed, thus representing a collective departure from (anti)selfduality. Effectively, such a “nervous” microscopic situation gives rise to two static phenomena: finite ground-state energy density ρ gs and pressure P gs with ρ gs = − P gs as well as the (adjoint) Higgs mechanism. The peripheries of HS (anti)calorons are static and resemble (anti)selfdual dipole fields whose apparent dipole moments are determined by | ϕ | and T, protecting them against deformation potentially caused by overlap. Such a protection extends to the spatial density of HS (anti)caloron centers. Thus the vacuum electric permittivity ϵ 0 and magnetic permeability μ 0 , supporting the propagation of wave-like disturbances in the U ( 1 ) Cartan subalgebra of S U ( 2 ) , can be reliably calculated for disturbances which do not probe HS (anti)caloron centers. Both ϵ 0 and μ 0 turn out to be temperature independent in thermal equilibrium but also for an isolated, monochromatic U ( 1 ) wave. HS (anti)caloron centers, on the other hand, react onto wave-like disturbances, which would resolve their spatio-temporal structure, by indeterministic emissions of quanta of energy and momentum. Thermodynamically seen, such events are Boltzmann weighted and occur independently at distinct locations in space and instants in (Minkowskian) time, entailing the Bose–Einstein distribution. Small correlative ramifications associate with effective radiative corrections, e.g., in terms of polarization tensors. We comment on an S U ( 2 ) × S U ( 2 ) based gauge-theory model, describing wave- and particle-like aspects of electromagnetic disturbances within the so far experimentally/observationally investigated spectrum.
Enhancing the Total Phenolic Content and Antioxidants of Lemon Pomace Aqueous Extracts by Applying UV-C Irradiation to the Dried Powder
Authors: Papoutsis Konstantinos , Vuong Quan , Pristijono Penta , Golding John , Bowyer Michael , Scarlett Christopher , Stathopoulos Costas
Published: August 2016

Several studies have shown that UV-C (ultraviolet C) irradiation promotes the bioactive compounds and antioxidants of fresh fruits and vegetables. The aim of this study was to apply UV irradiation in dried lemon pomace powder for enhancing its phenolic content and antioxidant properties, thus more bioactive compounds should be available for extraction and utilization. Lemon pomace dried powder was placed under a UV lamp and treated with dosages of 4, 19, 80 and 185 kJ·m−2, while untreated powder was used as a control. UV-C irradiation significantly affected the total phenolic content, total flavonoid content, proanthocyanidins, and antioxidant capacity measured by cupric reducing antioxidant capacity (CUPRAC) and ferric reducing antioxidant power (FRAP) of the lemon pomace dried powder, while it did not affect the vitamin C content. UV-C irradiation of 19 kJ·m−2 resulted in 19% higher total phenolic content than the control, while UV-C irradiation of 180 kJ·m−2 resulted in 28% higher total flavonoid content than the control. The antioxidant capacity was reduced when UV-C irradiation more than 4 kJ·m−2 was applied. The results of this study indicate that UV-C treatment has the potential to increase the extraction of bioactive compounds of dried lemon pomace at relatively high dosages.
Adult Status Epilepticus: A Review of the Prehospital and Emergency Department Management
Authors: Billington Michael , Kandalaft Osama , Aisiku Imoigele
Published: August 2016

Seizures are a common presentation in the prehospital and emergency department setting and status epilepticus represents an emergency neurologic condition. The classification and various types of seizures are numerous. The objectives of this narrative literature review focuses on adult patients with a presentation of status epilepticus in the prehospital and emergency department setting. In summary, benzodiazepines remain the primary first line therapeutic agent in the management of status epilepticus, however, there are new agents that may be appropriate for the management of status epilepticus as second- and third-line pharmacological agents.
Free-Standing Self-Assemblies of Gallium Nitride Nanoparticles: A Review
Authors: Lan Yucheng , Li Jianye , Wong-Ng Winnie , Derbeshi Rola , Li Jiang , Lisfi Abdellah
Published: August 2016

Gallium nitride (GaN) is an III-V semiconductor with a direct band-gap of 3 . 4 e V . GaN has important potentials in white light-emitting diodes, blue lasers, and field effect transistors because of its super thermal stability and excellent optical properties, playing main roles in future lighting to reduce energy cost and sensors to resist radiations. GaN nanomaterials inherit bulk properties of the compound while possess novel photoelectric properties of nanomaterials. The review focuses on self-assemblies of GaN nanoparticles without templates, growth mechanisms of self-assemblies, and potential applications of the assembled nanostructures on renewable energy.
A Novel Classification Technique of Arteriovenous Fistula Stenosis Evaluation Using Bilateral PPG Analysis
Authors: Du Yi-Chun , Stephanus Alphin
Published: August 2016

The most common treatment for end-stage renal disease (ESRD) patients is the hemodialysis (HD). For this kind of treatment, the functional vascular access that called arteriovenous fistula (AVF) is done by surgery to connect the vein and artery. Stenosis is considered the major cause of dysfunction of AVF. In this study, a noninvasive approach based on asynchronous analysis of bilateral photoplethysmography (PPG) with error correcting output coding support vector machine one versus rest (ESVM-OVR) for the degree of stenosis (DOS) evaluation is proposed. An artificial neural network (ANN) classifier is also applied to compare the performance with the proposed system. The testing data has been collected from 22 patients at the right and left thumb of the hand. The experimental results indicated that the proposed system could provide positive predictive value (PPV) reaching 91.67% and had higher noise tolerance. The system has the potential for providing diagnostic assistance in a wearable device for evaluation of AVF stenosis.
Insights on the Horizontal Gene Transfer of Carbapenemase Determinants in the Opportunistic Pathogen Acinetobacter baumannii
Authors: Da Silva Gabriela , Domingues Sara
Published: August 2016

Horizontal gene transfer (HGT) is a driving force to the evolution of bacteria. The fast emergence of antimicrobial resistance reflects the ability of genetic adaptation of pathogens. Acinetobacter baumannii has emerged in the last few decades as an important opportunistic nosocomial pathogen, in part due to its high capacity of acquiring resistance to diverse antibiotic families, including to the so-called last line drugs such as carbapenems. The rampant selective pressure and genetic exchange of resistance genes hinder the effective treatment of resistant infections. A. baumannii uses all the resistance mechanisms to survive against carbapenems but production of carbapenemases are the major mechanism, which may act in synergy with others. A. baumannii appears to use all the mechanisms of gene dissemination. Beyond conjugation, the mostly reported recent studies point to natural transformation, transduction and outer membrane vesicles-mediated transfer as mechanisms that may play a role in carbapenemase determinants spread. Understanding the genetic mobilization of carbapenemase genes is paramount in preventing their dissemination. Here we review the carbapenemases found in A. baumannii and present an overview of the current knowledge of contributions of the various HGT mechanisms to the molecular epidemiology of carbapenem resistance in this relevant opportunistic pathogen.
Plant Cell Cancer: May Natural Phenolic Compounds Prevent Onset and Development of Plant Cell Malignancy? A Literature Review
Authors: Rasouli Hassan , Farzaei Mohammad , Mansouri Kamran , Mohammadzadeh Sara , Khodarahmi Reza
Published: August 2016

Phenolic compounds (PCs) are known as a chemically diverse category of secondary and reactive metabolites which are produced in plants via the shikimate-phenylpropanoid pathways. These compounds—ubiquitous in plants—are an essential part of the human diet, and are of considerable interest due to their antioxidant properties. Phenolic compounds are essential for plant functions, because they are involved in oxidative stress reactions, defensive systems, growth, and development. A large body of cellular and animal evidence carried out in recent decades has confirmed the anticancer role of PCs. Phytohormones—especially auxins and cytokinins—are key contributors to uncontrolled growth and tumor formation. Phenolic compounds can prevent plant growth by the endogenous regulation of auxin transport and enzymatic performance, resulting in the prevention of tumorigenesis. To conclude, polyphenols can reduce plant over-growth rate and the development of tumors in plant cells by regulating phytohormones. Future mechanistic studies are necessary to reveal intracellular transcription and transduction agents associated with the preventive role of phenolics versus plant pathological malignancy cascades.
Elucidation of Differential Accumulation of 1-Phenylethanol in Flowers and Leaves of Tea (Camellia sinensis) Plants
Authors: Dong Fang , Zhou Ying , Zeng Lanting , Peng Qiyuan , Chen Yiyong , Zhang Ling , Su Xinguo , Watanabe Naoharu , Yang Ziyin
Published: August 2016

1-Phenylethanol (1PE) is a major aromatic volatile in tea (Camellia sinensis) flowers, whereas it occurs in a much smaller amounts in leaves. Enzymes involved in the formation of 1PE in plants and the reason why 1PE differentially accumulates in plants is unknown. In the present study, enzymes in the last step leading from acetophenone to 1PE were isolated from tea flowers by traditional biochemical chromatography. The two types of partially purified enzymes were proposed to be responsible for formations of (R)-1PE and (S)-1PE, respectively. Tea leaves also contained such enzymes having equivalent activities with flowers. Stable isotope labeling experiments indicated that weak transformation from l-phenylalanine to acetophenone in leaves mainly resulted in little occurrence of 1PE in leaves. This study provided an example that differential distribution of some metabolites in plant tissues was not only determined by enzyme(s) in the last step of metabolite formation, but also can be due to substrate availability.
Graphene-Enabled Electrodes for Electrocardiogram Monitoring
Authors: Celik Numan , Manivannan Nadarajah , Strudwick Andrew , Balachandran Wamadeva
Published: August 2016

The unique parameters of graphene (GN)—notably its considerable electron mobility, high surface area, and electrical conductivity—are bringing extensive attention into the wearable technologies. This work presents a novel graphene-based electrode for acquisition of electrocardiogram (ECG). The proposed electrode was fabricated by coating GN on top of a metallic layer of a Ag/AgCl electrode using a chemical vapour deposition (CVD) technique. To investigate the performance of the fabricated GN-based electrode, two types of electrodes were fabricated with different sizes to conduct the signal qualities and the skin-electrode contact impedance measurements. Performances of the GN-enabled electrodes were compared to the conventional Ag/AgCl electrodes in terms of ECG signal quality, skin–electrode contact impedance, signal-to-noise ratio (SNR), and response time. Experimental results showed the proposed GN-based electrodes produced better ECG signals, higher SNR (improved by 8%), and lower contact impedance (improved by 78%) values than conventional ECG electrodes.
TRPV1: A Target for Rational Drug Design
Authors: Carnevale Vincenzo , Rohacs Tibor
Published: August 2016

Transient Receptor Potential Vanilloid 1 (TRPV1) is a non-selective, Ca2+ permeable cation channel activated by noxious heat, and chemical ligands, such as capsaicin and resiniferatoxin (RTX). Many compounds have been developed that either activate or inhibit TRPV1, but none of them are in routine clinical practice. This review will discuss the rationale for antagonists and agonists of TRPV1 for pain relief and other conditions, and strategies to develop new, better drugs to target this ion channel, using the newly available high-resolution structures.
Feasibility of Acoustic Remote Sensing of Large Herring Shoals and Seafloor by Baleen Whales
Authors: Yi Dong , Makris Nicholas
Published: August 2016

Recent research has found a high spatial and temporal correlation between certain baleen whale vocalizations and peak herring spawning processes in the Gulf of Maine. These vocalizations are apparently related to feeding activities with suggested functions that include communication, prey manipulation, and echolocation. Here, the feasibility of the echolocation function is investigated. Physical limitations on the ability to detect large herring shoals and the seafloor by acoustic remote sensing are determined with ocean acoustic propagation, scattering, and statistical theories given baleen whale auditory parameters. Detection is found to be highly dependent on ambient noise conditions, herring shoal distributions, baleen whale time-frequency vocalization spectra, and geophysical parameters of the ocean waveguide. Detections of large herring shoals are found to be physically feasible in common Gulf of Maine herring spawning scenarios at up to 10 ± 6 km in range for humpback parameters and 1 ± 1 km for minke parameters but not for blue and fin parameters even at zero horizontal range. Detections of the seafloor are found to be feasible up to 2 ± 1 km for blue and humpback parameters and roughly 1 km for fin and minke parameters, suggesting that the whales share a common acoustic sensation of rudimentary features of the geophysical environment.
Practical Performance Analysis for Multiple Information Fusion Based Scalable Localization System Using Wireless Sensor Networks
Authors: Zhao Yubin , Li Xiaofan , Zhang Sha , Meng Tianhui , Zhang Yiwen
Published: August 2016

In practical localization system design, researchers need to consider several aspects to make the positioning efficiently and effectively, e.g., the available auxiliary information, sensing devices, equipment deployment and the environment. Then, these practical concerns turn out to be the technical problems, e.g., the sequential position state propagation, the target-anchor geometry effect, the Non-line-of-sight (NLOS) identification and the related prior information. It is necessary to construct an efficient framework that can exploit multiple available information and guide the system design. In this paper, we propose a scalable method to analyze system performance based on the Cramér–Rao lower bound (CRLB), which can fuse all of the information adaptively. Firstly, we use an abstract function to represent all of the wireless localization system model. Then, the unknown vector of the CRLB consists of two parts: the first part is the estimated vector, and the second part is the auxiliary vector, which helps improve the estimation accuracy. Accordingly, the Fisher information matrix is divided into two parts: the state matrix and the auxiliary matrix. Unlike the theoretical analysis, our CRLB can be a practical fundamental limit to denote the system that fuses multiple information in the complicated environment, e.g., recursive Bayesian estimation based on the hidden Markov model, the map matching method and the NLOS identification and mitigation methods. Thus, the theoretical results are approaching the real case more. In addition, our method is more adaptable than other CRLBs when considering more unknown important factors. We use the proposed method to analyze the wireless sensor network-based indoor localization system. The influence of the hybrid LOS/NLOS channels, the building layout information and the relative height differences between the target and anchors are analyzed. It is demonstrated that our method exploits all of the available information for the indoor localization systems and serves as an indicator for practical system evaluation.
The Significance of Consumer’s Awareness about Organic Food Products in the United Arab Emirates
Authors: Muhammad Safdar , Fathelrahman Eihab , Tasbih Ullah Rafi
Published: August 2016

Awareness about negative externalities generated by conventional farming is gaining momentum with consumers around the world, opting for alternatively, namely organically, produced food products. Information about consumers’ awareness is an essential element for farmers and marketing agencies to successfully plan production that can capture a greater market share. This study discusses effective factors influencing consumers’ awareness about the benefits of organic food in the United Arab Emirates. Sample data and ordinary least square (OLS) regression techniques are applied to delineate factors influencing consumers’ awareness about organic food. The results from this regression analysis highlight the importance of specific socioeconomic determinants that change awareness about organic food products in United Arab Emirates (UAE) households. This study finds that awareness about organic food is influenced more effective factors such as gender, nationality, and education as well as income, occupation and age. These research findings apply to other economies and societies that have an increasing per capita spending on organic food, but also where people are highly sensitive to information provided about organic food. Therefore, these results are important to these research beneficiaries including food marketing planners, researchers, and agricultural and food policy makers.
Building a Sustainable Healthcare Model: A Cross-Country Analysis
Authors: Momete Daniela
Published: August 2016

This paper aims to advocate for a sustainable healthcare system and the need for pursuing a new set of goals in designing it, given the current challenges in European Union (EU28). The EU28 member states are in different phases of economic integration, and yet far from an authentic integrated market. Despite the real gains in other domains, such as commercial and competition, public health is very different across the EU28 space and lacks a common integrated and sustainable approach. Herein a sustainable healthcare model is introduced and is based on four components, two for the inputs and two for the outputs of the healthcare system, each component being further categorized into two factors. The method consists of the assessment of a new and suggestive common index of sustainable healthcare (ISH). The methodology consists of five steps: data gathering, data validation, normalization of data by applying the utilities theory, aggregation of data, and construction of the ISH index. The methodology allows the assessment of a composite ISH which captures the complexity of the national healthcare systems. The ISH is then applied to specific circumstances from different countries and is used in a cross-country analysis to determine the progress towards a sustainable healthcare.
Transcriptome sequencing and simple sequence repeat marker development for three Macaronesian endemic plant species
Authors: White Oliver W. , Doo Bethany , Carine Mark A. , Chapman Mark A.
Published: August 2016

Premise of the study:

Oceanic islands offer unparalleled opportunities to investigate evolutionary processes such as adaptation and speciation. However, few genomic resources are available for oceanic island endemics. In this study, we publish transcriptome sequences from three Macaronesian endemic plant species (Argyranthemum broussonetii [Asteraceae], Descurainia bourgaeana [Brassicaceae], and Echium wildpretii [Boraginaceae]) that are representative of lineages that have radiated in the region. In addition, the utility of transcriptome data for marker development is demonstrated.

Methods and Results:

Transcriptomes from the three plant species were sequenced, assembled, and annotated. Between 1972 and 2282 simple sequence repeats (SSRs) were identified for each taxon. Primers were designed and tested for 30 of the candidate SSRs identified in Argyranthemum, of which 12 amplified well across three species and eight were polymorphic.

Conclusions:

We demonstrate here that a single transcriptome sequence is sufficient to identify hundreds of polymorphic SSR markers. The SSRs are applicable to a wide range of questions relating to the evolution of island lineages.
CHARGED DUST GRAIN DYNAMICS SUBJECT TO SOLAR WIND, POYNTING–ROBERTSON DRAG, AND THE INTERPLANETARY MAGNETIC FIELD
Authors: Lhotka Christoph , Bourdin Philippe , Narita Yasuhito
Published: August 2016

We investigate the combined effect of solar wind, Poynting–Robertson drag, and the frozen-in interplanetary magnetic field on the motion of charged dust grains in our solar system. For this reason, we derive a secular theory of motion by the means of an averaging method and validate it with numerical simulations of the unaveraged equations of motions. The theory predicts that the secular motion of charged particles is mainly affected by the z-component of the solar magnetic axis, or the normal component of the interplanetary magnetic field. The normal component of the interplanetary magnetic field leads to an increase or decrease of semimajor axis depending on its functional form and sign of charge of the dust grain. It is generally accepted that the combined effects of solar wind and photon absorption and re-emmision (Poynting–Robertson drag) lead to a decrease in semimajor axis on secular timescales. On the contrary, we demonstrate that the interplanetary magnetic field may counteract these drag forces under certain circumstances. We derive a simple relation between the parameters of the magnetic field, the physical properties of the dust grain, as well as the shape and orientation of the orbital ellipse of the particle, which is a necessary conditions for the stabilization in semimajor axis.
COMPARISON OF MAGNETIC PROPERTIES IN A MAGNETIC CLOUD AND ITS SOLAR SOURCE ON 2013 APRIL 11–14
Authors: Vemareddy P. , Möstl C. , Amerstorfer T. , Mishra W. , Farrugia C. , Leitner M.
Published: August 2016

In the context of the Sun–Earth connection of coronal mass ejections and magnetic flux ropes (MFRs), we studied the solar active region (AR) and the magnetic properties of magnetic cloud (MC) event during 2013 April 14–15. We use in situ observations from the Advanced Composition Explorer and source AR measurements from the Solar Dynamics Observatory. The MCs magnetic structure is reconstructed from the Grad–Shafranov method, which reveals a northern component of the axial field with left handed helicity. The MC invariant axis is highly inclined to the ecliptic plane pointing northward and is rotated by 117° with respect to the source region PIL. The net axial flux and current in the MC are comparatively higher than from the source region. Linear force-free alpha distribution (10−7–10−6 m−1) at the sigmoid leg matches the range of twist number in the MC of 1–2 au MFR. The MFR is nonlinear force-free with decreasing twist from the axis (9 turns/au) toward the edge. Therefore, a Gold–Hoyle (GH) configuration, assuming a constant twist, is more consistent with the MC structure than the Lundquist configuration of increasing twist from the axis to boundary. As an indication of that, the GH configuration yields a better fitting to the global trend of in situ magnetic field components, in terms of rms, than the Lundquist model. These cylindrical configurations improved the MC fitting results when the effect of self-similar expansion of MFR was considered. For such twisting behavior, this study suggests an alternative fitting procedure to better characterize the MC magnetic structure and its source region links.
BARYON LOADING EFFICIENCY AND PARTICLE ACCELERATION EFFICIENCY OF RELATIVISTIC JETS: CASES FOR LOW LUMINOSITY BL LACS
Authors: Inoue Yoshiyuki , Tanaka Yasuyuki T.
Published: August 2016

Relativistic jets launched by supermassive black holes, so-called active galactic nuclei (AGNs), are known as the most energetic particle accelerators in the universe. However, the baryon loading efficiency onto the jets from the accretion flows and their particle acceleration efficiencies have been veiled in mystery. With the latest data sets, we perform multi-wavelength spectral analysis of quiescent spectra of 13 TeV gamma-ray detected high-frequency-peaked BL Lacs (HBLs) following one-zone static synchrotron self-Compton (SSC) model. We determine the minimum, cooling break, and maximum electron Lorentz factors following the diffusive shock acceleration (DSA) theory. We find that HBLs have

and the radiative efficiency

, where P

B
and P

e
is the Poynting and electron power, respectively. By assuming 10 leptons per one proton, the jet power relates to the black hole mass as

, where

and

is the jet power and the Eddington luminosity, respectively. Under our model assumptions, we further find that HBLs have a jet production efficiency of

and a mass loading efficiency of

. We also investigate the particle acceleration efficiency in the blazar zone by including the most recent Swift/BAT data. Our samples ubiquitously have particle acceleration efficiencies of

, which is inefficient to accelerate particles up to the ultra-high-energy-cosmic-ray (UHECR) regime. This implies that the UHECR acceleration sites should not be the blazar zones of quiescent low power AGN jets, if one assumes the one-zone SSC model based on the DSA theory.
ASSESSMENT OF MODELS OF GALACTIC THERMAL DUST EMISSION USING COBE/FIRAS AND COBE/DIRBE OBSERVATIONS
Authors: Odegard N. , Kogut A. , Chuss D. T. , Miller N. J.
Published: August 2016

Accurate modeling of the spectrum of thermal dust emission at millimeter wavelengths is important for improving the accuracy of foreground subtraction for cosmic microwave background (CMB) measurements, for improving the accuracy with which the contributions of different foreground emission components can be determined, and for improving our understanding of dust composition and dust physics. We fit four models of dust emission to high Galactic latitude COBE/FIRAS and COBE/DIRBE observations from 3 mm to 100 μm and compare the quality of the fits. We consider the two-level systems (TLS) model because it provides a physically motivated explanation for the observed long wavelength flattening of the dust spectrum and the anti-correlation between emissivity index and dust temperature. We consider the model of Finkbeiner et al. because it has been widely used for CMB studies, and the generalized version of this model that was recently applied to Planck data by Meisner and Finkbeiner. For comparison we have also fit a phenomenological model consisting of the sum of two graybody components. We find that the two-graybody model gives the best fit and the FDS model gives a significantly poorer fit than the other models. The Meisner and Finkbeiner model and the TLS model remain viable for use in Galactic foreground subtraction, but the FIRAS data do not have a sufficient signal-to-noise ratio to provide a strong test of the predicted spectrum at millimeter wavelengths.
RELATIVISTIC ELECTRONS PRODUCED BY RECONNECTING ELECTRIC FIELDS IN A LASER-DRIVEN BENCH-TOP SOLAR FLARE
Authors: Zhong J. Y. , Lin J. , Li Y. T. , Wang X. , Li Y. , Zhang K. , Yuan D. W. , Ping Y. L. , Wei H. G. , Wang J. Q. , Su L. N. , Li F. , Han B. , Liao G. Q. , Yin C. L. , Fang Y. , Yuan X. , Wang C. , Sun J. R. , Liang G. Y. , Wang F. L. , Ding Y. K. , He X. T. , Zhu J. Q. , Sheng Z. M. , Li G. , Zhao G. , Zhang J.
Published: August 2016

Laboratory experiments have been carried out to model the magnetic reconnection process in a solar flare with powerful lasers. Relativistic electrons with energy up to megaelectronvolts are detected along the magnetic separatrices bounding the reconnection outflow, which exhibit a kappa-like distribution with an effective temperature of ∼109 K. The acceleration of non-thermal electrons is found to be more efficient in the case with a guide magnetic field (a component of a magnetic field along the reconnection-induced electric field) than in the case without a guide field. Hardening of the spectrum at energies ≥500 keV is observed in both cases, which remarkably resembles the hardening of hard X-ray and γ-ray spectra observed in many solar flares. This supports a recent proposal that the hardening in the hard X-ray and γ-ray emissions of solar flares is due to a hardening of the source-electron spectrum. We also performed numerical simulations that help examine behaviors of electrons in the reconnection process with the electromagnetic field configurations occurring in the experiments. The trajectories of non-thermal electrons observed in the experiments were well duplicated in the simulations. Our numerical simulations generally reproduce the electron energy spectrum as well, except for the hardening of the electron spectrum. This suggests that other mechanisms such as shock or turbulence may play an important role in the production of the observed energetic electrons.
PHOTOMETRIC SUPERNOVA CLASSIFICATION WITH MACHINE LEARNING
Authors: Lochner Michelle , McEwen Jason D. , Peiris Hiranya V. , Lahav Ofer , Winter Max K.
Published: August 2016

Automated photometric supernova classification has become an active area of research in recent years in light of current and upcoming imaging surveys such as the Dark Energy Survey (DES) and the Large Synoptic Survey Telescope, given that spectroscopic confirmation of type for all supernovae discovered will be impossible. Here, we develop a multi-faceted classification pipeline, combining existing and new approaches. Our pipeline consists of two stages: extracting descriptive features from the light curves and classification using a machine learning algorithm. Our feature extraction methods vary from model-dependent techniques, namely SALT2 fits, to more independent techniques that fit parametric models to curves, to a completely model-independent wavelet approach. We cover a range of representative machine learning algorithms, including naive Bayes,k-nearest neighbors, support vector machines, artificial neural networks, and boosted decision trees (BDTs). We test the pipeline on simulated multi-band DES light curves from the Supernova Photometric Classification Challenge. Using the commonly used area under the curve (AUC) of the Receiver Operating Characteristic as a metric, we find that the SALT2 fits and the wavelet approach, with the BDTs algorithm, each achieve an AUC of 0.98, where 1 represents perfect classification. We find that a representative training set is essential for good classification, whatever the feature set or algorithm, with implications for spectroscopic follow-up. Importantly, we find that by using either the SALT2 or the wavelet feature sets with a BDT algorithm, accurate classification is possible purely from light curve data, without the need for any redshift information.
As várias vozes do slogan “Funciona para você”
Authors: De Araújo Alex Sandro
Published: August 2016

Através da análise do slogan de um alimento funcional, este estudo busca compreender as estratégias discursivas que a indústria alimentícia vem utilizando para criar efeitos de sentido. Vê-se, num primeiro olhar, que o discurso sobre esses produtos está atrelado à questão da mudança de hábitos alimentares, em junção com a aliança formada entre saúde e nutrição. Percebe-se também que este discurso geralmente promete ajustar o organismo humano de forma saudável e prática – como é o caso do slogan do Activia da Danone “funciona para você”, em que fica subentendido que, se alguém consome este produto, vai ter seu organismo funcionando corretamente. Para se estudar o corpus pretendido, procurou-se aporte teórico na Análise de Discurso, principalmente sobre slogans, que geralmente são enunciações curtas destinadas à repetição.
Comunicação Interna Estratégica: a aplicação dos quatro campos de intervenção de Duterme na Ometz TV
Authors: Antoniolli Náthalli
Published: August 2016

O presente trabalho tem o objetivo explorar os quatro grandes campos de intervenção sugeridos por Duterme em sua teoria sobre ações de comunicação interna como aposta de gestão e intervenção da organização. São eles: gerar e gerir a imagem interna, apoiar as campanhas estratégicas da empresa, servir de suporte à informação geral e avaliar os resultados das ações de comunicação. Para abordar com mais profundidade o foco deste estudo, os campos serão explorados individualmente. Assim, a teoria de Duterme será aplicada sobre a Ometz TV (objeto de estudo deste trabalho), um canal corporativo via satélite que pretende alcançar todas as unidades da holding Ometz Group para informar estrategicamente, treinar profissionais e oferecer novos produtos. 
Geração X: adultos infantilizados - uma análise do fenômeno
Authors: Escudero Andreia Perroni
Published: August 2016

Por tratar-se de uma tendência cuja emergência se deu após os anos 90, a adultescência é trazida como uma característica da geração X. O texto aborda situações comuns que ratificam esse puerismo e relaciona-o com os conteúdos midiáticos vivenciados na infância deste grupo. Além disso, reflete sobre a possibilidade de seus hábitos de consumo atuais serem uma “válvula de escape” das tensões impostas pela vida moderna, uma fuga que os leva nostalgicamente para a infância e a seu mundo de personagens, a produtos e a comportamentos formatados e difundidos pelos meios de comunicação.
Projeto de comunicação para o Instituto AMA
Authors: Andriolli Francielli De Fátima
Published: August 2016

O presente trabalho propõe um plano de comunicação ao Instituto AMA, com o objetivo de disseminar a marca da instituição para a comunidade do bairro Capão da Imbuia, em Curitiba, onde a entidade está localizada, e para os demais bairros da cidade, além de envolver a comunidade local com a entidade, para que conheça o trabalho desenvolvido pelo AMA e participe ativamente de suas atividades como voluntário ou doador.
Memória, comunicação e samba: partilhas de um mundo em comum
Authors: Aguiar Maria Lívia de Sá Roriz
Published: August 2016

O texto procura mostrar a correlação entre memória e comunicação através da apresentação de fragmentos narrativos de alguns integrantes da Velha Guarda das Escolas de Samba do Rio de Janeiro, que constroem, a partir de múltiplos trabalhos memoráveis, estratégias que correlacionam o mundo do samba ao mundo de suas vidas. Num primeiro momento aborda teoricamente a questão da memória, para num segundo instante mostrar como os personagens dessa história (os idosos da Velha Guarda) constroem em atos de comunicação um mundo em comum: o universo do samba.
As curvas da dor e do sorriso: comercial de analgésico substitui indicações médicas por valores do consumo e do trabalho para vender mais drágeas
Authors: Da Fraga Júnior Plínio José
Published: August 2016

Análise da propaganda televisiva do medicamento para combate à dor de cabeça Neosaldina, o quarto remédio mais vendido no Brasil. Aborda a construção simbólica da imagem do produto, cuja mensagem comunicacional substitui as indicações médico-terapêuticas por valores de consumo, trabalho, bem-estar social, conforto e afeto.
Diálogos possíveis: história e jornalismo
Authors: Ferreira Aline Sajnaj , Gruner Clóvis
Published: August 2016

Este artigo faz uma reflexão sobre os diálogos que se estabelecem entre as práticas de jornalistas e historiadores. Fundamentado na concepção de que, além das semelhanças e diferenças, há influências de uma prática sobre a outra, o artigo apresenta considerações sobre Jornalismo e História, inclusive como formações discursivas, e discorre a respeito das práticas e abordagens semelhantes. Embasado no jogo de Foucault do verdadeiro e do falso, o artigo também avalia a relação com a verdade. Trata-se de uma abordagem teórica, baseada em bibliografias.
Literatura e cinema: o fluxo de consciência em Estorvo
Authors: De Almeida Indaiana Aparecida
Published: August 2016

A presente pesquisa tem por objetivo analisar a obra literária Estorvo, de Chico Buarque, em comparação com a adaptação cinematográfica homônima Estorvo, do diretor Ruy Guerra. Trata-se de uma investigação sobre o fluxo de consciência do narrador-protagonista na obra literária e em sua versão cinematográfica. A análise partiu das referências sobre o fluxo de consciência, relacionando sua abordagem nas obras com um apanhado histórico do autor Chico Buarque e do cineasta Ruy Guerra. Tal proposta teve como objetivo estabelecer um comparativo entre o personagem e seus pensamentos e a maneira como cada uma das obras, livro e filme, representaram essa consciência. Para o presente artigo, foi analisado somente o primeiro capítulo da obra literária.
Análise da importância da comunicação online para o público interno na divulgação dos resultados obtidos pelo Iape
Authors: Jaime Nathalie Sarah
Published: August 2016

O presente artigo tem como objetivo propor melhorias na comunicação institucional do Instituto de Atendimento e Pesquisa em Equoterapia (IAPE), localizado em Curitiba-PR. Para este trabalho, foi realizada uma pesquisa baseada na aplicação de questionários em um grupo de 50 pessoas. Como resultados, foram esperadas a melhora da comunicação e do diálogo entre o IAPE e seu público, a criação de um canal de comunicação de melhor e mais eficaz divulgação da prática da equoterapia. Com isso, espera-se maior abrangência no público atingido e reconhecimento das atividades desenvolvidas pelo IAPE entre seus próprio funcionários.
O papel da assessoria de imprensa na gestão de crise de imagem
Authors: Cavalaro Gaziela Castilho
Published: August 2016

O presente artigo apresenta a contribuição que os profissionais de assessoria de imprensa podem oferecer em situação de gestão de crise de imagem. O estudo utiliza metodologia de pesquisa bibliográfica e traz exemplos práticos, com citação de empresas do exterior e do Brasil que já vivenciaram uma crise de imagem e que foram bem-sucedidas, como Johnson & Johnson, Exxon Valdez, Zara, Rhodia e Telefonica. Os casos foram analisados a partir do embasamento teórico, o que possibilita uma visão mais clara sobre as fases de uma crise de imagem e demonstra como esse fenômeno, com alto potencial destrutivo, pode ser evitado ou revertido. 
Facebook: uma análise sobre a onda de manifestações e protestos em junho de 2013 no Brasil
Authors: Sotsek Nicolle , Ramos Rangel
Published: August 2016

O objetivo deste artigo é estudar o papel do Facebook como instrumento comunicacional efetivo durante a onda de manifestações ocorrida em junho de 2013 em diversas cidades brasileiras. A pesquisa foi organizada em duas etapa: na primeira, é apresentada a fundamentação teórica sobre o interesse humano pela interatividade e também a apreciação de conceitos relacionados a comunicação e recepção na cultura de massa e na cibercultura. Depois são apresentadas as impressões resultantes da análise realizada através da ferramenta quantitativa Survey, visando avaliar a repercussão sobre a onda de protestos no Brasil. O objetivo dos pesquisadores foi investigar o ciberativismo, procurando verificar se o Facebook pode ser considerado uma ferramenta que possibilita de maneira efetiva a participação política e ideológica dos seus usuários na esfera pública brasileira.
Perspectivas transversais: entre comunicação, acessibilidade e informação
Authors: Figueiredo Maria de Lourdes Alves , Rosa Ana Paula da
Published: August 2016

O objetivo deste artigo é entender a educação e a comunicação como importantes ferramentas para a acessibilidade. Utilizamos como base as premissas da Declaração dos Direitos Humanos, que defende a educação como um dos principais instrumentos de manutenção das liberdades e direitos fundamentais, e da Organização das Nações Unidas, que estabelece a igualdade de condições entre as pessoas. O trabalho é estruturado a partir do pensamento de Mario Kaplún, Jesús Martín-Barbero e Ismar Oliveira Soares. 
Rolezinho no Hemepar: a publicidade social em favor da doação de sangue
Authors: Carbornar Víctor Murilo , De Oliveira Eliane Basilio
Published: August 2016

Este texto apresenta um estudo de caso do vídeo “Rolezinho no Hemepar”, lançado com objetivo de aumentar as doações de sangue em Curitiba. Para isso, foi realizado um estudo sobre as técnicas utilizadas pela publicidade na construção do sentido do conteúdo da mensagem do vídeo, levando em conta elementos como imagens, intertextualidade e trilha sonora. Ao final da análise, percebemos a importância do papel da publicidade em campanhas como essa.
Dialogismo e intertextualidade: uma leitura de elementos religiosos no Big Brother Brasil 2009
Authors: Martins Amanda Marciniak , Gobi Gabriela Marçal , Cândido Rafaela Mariane M. , De Lima Marcelo Fernando
Published: August 2016

Este artigo trata da ideia de nacionalidade brasileira presente na literatura oswaldiana, especificamente, o conceito de antropofagia cultural tomado como base no delineamento de novas formas para entender o país que se desejava moderno e futuro Éden da humanidade.
Off - o mal (des)necessário: a produção de reportagens sem locução
Authors: Nodari Sandra
Published: August 2016

Analisar a ausência de um narrador oficial na reportagem é a questão principal desse trabalho. Para tanto é preciso investigar a ingerência da locução sobre as imagens na reportagem de telejornalismo questionando a prisão ao formato pré-determinado baseado em off+passagem+sonora. Discutir a relação entre off e imagem é questionar a forma de comunicação presente nos elementos visuais cotidianos. Dessa forma, é possível verificar a ingerência do repórter na reportagem e buscar uma forma de produção de reportagem em que não haja narração como elemento principal de comunicação. Esta análise é um estudo de caso de reportagens produzidas por alunos do curso de Jornalismo da Universidade Positivo.
A venda da Copa do Mundo: uma análise do boato que se perpetua a cada mundial da Fifa
Authors: Kondlatsch Rafael
Published: August 2016

Em uma era de urgência, em que as tecnologias da comunicação estão cada vez mais presentes e o cidadão continuamente mais conectado ao universo online é comum passar despercebido no dia a dia um dado ou uma informação imprecisa. Mas e quando a manipulação é intencional, com objetivo de causar algum tipo de reação nas pessoas e no sistema? E quando o assunto é a principal competição esportiva de que a nação participa? Esse artigo se propõe a discutir a notícia da venda da Copa do Mundo de futebol, demonstrando como uma informação claramente falsa acaba sendo multiplicada na rede e gerando dúvida e desconforto às pessoas que a leem. 
Clipping e a gestão em agência de comunicação
Authors: Chiquim Jucélia Do Rocio , Da Silva Emerson De Castro Firmo
Published: August 2016

Esta pesquisa propôs-se a analisar o processo de gestão jornalística de uma agência e assessoria de comunicação de Curitiba, considerando-se as práticas que envolvem o atendimento a assessorados. Especificamente para esta pesquisa escolheu-se a M&C Comunicação que se destaca entre as agências por sua base tecnológica avançada. O método utilizado para a análise foi a combinação de entrevista com a direção da agência e observação do seu espaço físico e gestão dos processos que envolvem seus profissionais. 
Sistemas fechados em vias de midiatização
Authors: Vinhola Bruno Garcia
Published: August 2016

O presente texto tem por objetivo refletir sobre como a nova ambiência da sociedade em vias de midiatização tem afetado até mesmo as instituições consideradas mais fechadas. Elege-se como objeto o Exército Brasileiro, ao analisar como suas práticas de sociabilidade têm respondido à problemática da midiatização. Ao trabalhar a transição da sociedade dos meios para a sociedade em vias de midiatização, examinam-se as mudanças nas interações entre campos e atores sociais, procurando encontrar em nosso objeto sinais dos efeitos que a midiatização pode causar em instituições resistentes por essência.
O PROCESSO PRODUTIVO DO PORTAL COMUNITÁRIO: UMA EXPERIÊNCIA DE APRENDIZADO E ATENDIMENTO À COMUNIDADE
Authors: Xavier Cíntia , Dos Anjos Manoel Moabis Pereira , Eichelbaun Melissa Cristina
Published: August 2016

Este trabalho estuda o processo produtivo do Portal Comunitário, atividade de extensão que funciona de maneira integrada com três disciplinas do terceiro ano do Curso de Jornalismo da Universidade Estadual de Ponta Grossa (Webjornalismo, Comunicação Comunitária e Telejornalismo II). O portal de notícias oferece informações sobre entidades sem fins lucrativos, sindicatos e também de movimentos sociais que atuam na cidade de Ponta Grossa. A iniciativa existe há oito anos e tem se configurado como uma experiência laboratorial muito significativa para o público envolvido.
VISIBILIDADE TENSIONADA: PROSUMIDORES, ATIVISMO VIRTUAL E A PRESSÃO CONTRA POSTURAS ORGANIZACIONAIS NEGATIVAS
Authors: Ferreira Carolina Dos Santos , Lisboa Wellington Teixeira
Published: August 2016

Esta pesquisa apresenta uma análise sobre as práticas de ativismo processadas na internet, com foco particular na ação dos prosumers. Nessa perspectiva, articula reflexões teóricas e contextuais em torno dos campos do ativismo, do consumo e das novas tecnologias da informação e comunicação, também apontando as implicações dessa relação no âmbito organizacional. A metodologia deste estudo baseia-se em duas partes interdependentes: a primeira referente a uma revisão da bibliografia sobre os temas centrais da pesquisa; a segunda concernente a um estudo empírico, de natureza qualitativa, em que se explora a forma como os prosumers ativistas do caso “Ades de maça”, alusivo à adulteração do conteúdo líquido de um lote de suco dessa marca, manifestaram-se frente a esse acontecimento, pela produção de vídeos na plataforma Youtube. Conclui-se que as formas dos ativismos contemporâneos dão-se, também, no ambiente virtual e incluem a esfera do consumo, sendo que a produção de materiais audiovisuais, com enredos os mais diversos, representa uma estratégia de contestação, mobilização, registro e pulverização de ideias e ideais, de forma criativa e aproximativa. 
REPRESENTAÇÃO DA MULHER NA PUBLICIDADE: UM ESTUDO DE CASO DO VÍDEO CÂMERA TÍMIDA, DA MARCA DOVE
Authors: Cugler Jussara , De Oliveira Eliane Basilio
Published: August 2016

O objetivo deste trabalho é analisar a representação da mulher no vídeo “Câmera Tímida” da marca Dove, veiculado no canal Youtube. O trabalho envolve a apresentação do conceito de gênero, sua relação com a publicidade e análise de elementos formais da peça estudada. Por fim, a pesquisa mostra que a marca Dove, de uma maneira sutil, reforça estereótipos relacionados ao universo feminino.