bluuebunny/crossref_metadata_2025 huggingface dataset:
Discordance of Mutation Statuses of Epidermal Growth Factor Receptor and K-ras between Primary Adenocarcinoma of Lung and Brain Metastasis
Authors: Rau Kun-Ming , Chen Han-Ku , Shiu Li-Yen , Chao Tsai-Ling , Lo Yi-Ping , Wang Chin-Chou , Lin Meng-Chih , Huang Chao-Cheng
Published: April 2016

Mutations on epidermal growth factor receptor (EGFR) of adenocarcinomas of lung have been found to be associated with increased sensitivity to EGFR tyrosine kinase inhibitors and K-ras mutations may correlate with primary resistance. We aimed to explore the discordant mutation statuses of EGFR and K-ras between primary tumors and matched brain metastases in adenocarcinomas of lung. We used a sensitive Scorpion ARMS method to analyze EGFR mutation, and Sanger sequencing followed by allele-specific real-time polymerase chain reaction to analyze K-ras mutation. Forty-nine paired tissues with both primary adenocarcinoma of lung and matched brain metastasis were collected. Thirteen patients (26.5%) were discordant for the status of EGFR between primary and metastatic sites. K-ras gene could be checked in paired specimens from 33 patients, thirteen patients (39.6%) were discordant for the status of K-ras. In primary lung adenocarcinoma, there were 14 patients of mutant EGFR had mutant K-ras synchronously. This study revealed that the status of EGFR mutation in lung adenocarcinomas is relatively consistent between primary and metastatic sites compared to K-ras mutation. However, there are still a few cases of adenocarcinoma of lung showing discordance for the status of EGFR mutation. Repeated analysis of EGFR mutation is highly recommended if tissue from metastatic or recurrent site is available for the evaluation of target therapy.
Mapping of the Indoor Conditions by Infrared Thermography
Authors: Djupkep Dizeu Frank , Maldague Xavier , Bendada Abdelhakim
Published: April 2016

We present an instrumentation devoted to the mapping of indoor ambient conditions by an infrared camera. In addition to a measurement grid composed of several spherical sensors, an infrared camera is used to visualize and quantify the spatial distribution of the air temperature, the air speed, and the mean radiant temperature. A suitable procedure is developed so that from its temperature history recorded by the infrared camera, each sensor can measure, after solving an inverse heat transfer problem, all the three cited parameters. As the sensors are all imaged at the same time by the camera, an interpolation is done with the values they provide; the 2D distribution of each parameter is then obtained. By using a pair of stereoscopic cameras, it is possible to determine the 3D coordinates of each sensor of the measurement grid; consequently, the 3D mapping of the indoor ambient conditions is possible. Two steps are followed and allow us to achieve our goal: the validation of the performance of the sensor in terms of accuracy and reliability, and the validation of the complete experimental procedure which relies on digital image processing and on inverse heat transfer.
Label Free Poly(2,5-dimethoxyaniline)–Multi-Walled Carbon Nanotubes Impedimetric Immunosensor for Fumonisin B1 Detection
Authors: Masikini Milua , Williams Avril , Sunday Christopher , Waryo Tesfaye , Nxusani Ezo , Wilson Lindsay , Qakala Sinazo , Bilibana Mawethu , Douman Samantha , Jonnas Anovuyo , Baker Priscilla , Iwuoha Emmanuel
Published: April 2016

An impedimetric immunosensor for fumonisin B1 (FB1) was developed from a poly(2,5-dimethoxyaniline)-multi-walled carbon nanotube (PDMA-MWCNT) composite on the surface of glassy carbon electrode (GCE). The composite was prepared electrochemically and characterized using cyclic voltammetry. The preparation of the FB1 immunosensor involved the drop-coating of a bovine serum albumin mixture of the anti-fumonisin antibody (anti-Fms) onto the composite polymer-modified GCE. The electrochemical impedance spectroscopy (EIS) responses of the FB1 immunosensor (GCE/PDMA-MWCNT/anti-Fms) have a linear range of 7 to 49 ng·L−1, and the corresponding sensitivity and detection limits are 0.272 kΩ L·ng−1 and 3.8 pg·L−1, respectively. The limit of detection of the immunosensor for certified corn sample (i.e., certified reference material) is 0.014 ppm FB1, which is in excellent agreement with the value published by the vendors and significantly more accurate than that obtained with enzyme-linked immunosorbent assay (ELISA).
Detecting Milling Deformation in 7075 Aluminum Alloy Aeronautical Monolithic Components Using the Quasi-Symmetric Machining Method
Authors: Wu Qiong , Li Da-Peng , Zhang Yi-Du
Published: April 2016

The deformation of aeronautical monolithic components due to CNC machining is a bottle-neck issue in the aviation industry. The residual stress releases and redistributes in the process of material removal, and the distortion of the monolithic component is generated. The traditional one-side machining method will produce oversize deformation. Based on the three-stage CNC machining method, the quasi-symmetric machining method is developed in this study to reduce deformation by symmetry material removal using the M-symmetry distribution law of residual stress. The mechanism of milling deformation due to residual stress is investigated. A deformation experiment was conducted using traditional one-side machining method and quasi-symmetric machining method to compare with finite element method (FEM). The deformation parameters are validated by comparative results. Most of the errors are within 10%. The reason for these errors is determined to improve the reliability of the method. Moreover, the maximum deformation value of using quasi-symmetric machining method is within 20% of that of using the traditional one-side machining method. This result shows the quasi-symmetric machining method is effective in reducing deformation caused by residual stress. Thus, this research introduces an effective method for reducing the deformation of monolithic thin-walled components in the CNC milling process.
Design of a Computerised Flight Mill Device to Measure the Flight Potential of Different Insects
Authors: Martí-Campoy Antonio , Ávalos Juan , Soto Antonia , Rodríguez-Ballester Francisco , Martínez-Blay Victoria , Malumbres Manuel
Published: April 2016

Several insect species pose a serious threat to different plant species, sometimes becoming a pest that produces significant damage to the landscape, biodiversity, and/or the economy. This is the case of Rhynchophorus ferrugineus Olivier (Coleoptera: Dryophthoridae), Semanotus laurasii Lucas (Coleoptera: Cerambycidae), and Monochamus galloprovincialis Olivier (Coleoptera: Cerambycidae), which have become serious threats to ornamental and productive trees all over the world such as palm trees, cypresses, and pines. Knowledge about their flight potential is very important for designing and applying measures targeted to reduce the negative effects from these pests. Studying the flight capability and behaviour of some insects is difficult due to their small size and the large area wherein they can fly, so we wondered how we could obtain information about their flight capabilities in a controlled environment. The answer came with the design of flight mills. Relevant data about the flight potential of these insects may be recorded and analysed by means of a flight mill. Once an insect is attached to the flight mill, it is able to fly in a circular direction without hitting walls or objects. By adding sensors to the flight mill, it is possible to record the number of revolutions and flight time. This paper presents a full description of a computer monitored flight mill. The description covers both the mechanical and the electronic parts in detail. The mill was designed to easily adapt to the anatomy of different insects and was successfully tested with individuals from three species R. ferrugineus, S. laurasii, and M. galloprovincialis.
An Enhanced Energy Balanced Data Transmission Protocol for Underwater Acoustic Sensor Networks
Authors: Javaid Nadeem , Shah Mehreen , Ahmad Ashfaq , Imran Muhammad , Khan Majid , Vasilakos Athanasios
Published: April 2016

This paper presents two new energy balanced routing protocols for Underwater Acoustic Sensor Networks (UASNs); Efficient and Balanced Energy consumption Technique (EBET) and Enhanced EBET (EEBET). The first proposed protocol avoids direct transmission over long distance to save sufficient amount of energy consumed in the routing process. The second protocol overcomes the deficiencies in both Balanced Transmission Mechanism (BTM) and EBET techniques. EBET selects relay node on the basis of optimal distance threshold which leads to network lifetime prolongation. The initial energy of each sensor node is divided into energy levels for balanced energy consumption. Selection of high energy level node within transmission range avoids long distance direct data transmission. The EEBET incorporates depth threshold to minimize the number of hops between source node and sink while eradicating backward data transmissions. The EBET technique balances energy consumption within successive ring sectors, while, EEBET balances energy consumption of the entire network. In EEBET, optimum number of energy levels are also calculated to further enhance the network lifetime. Effectiveness of the proposed schemes is validated through simulations where these are compared with two existing routing protocols in terms of network lifetime, transmission loss, and throughput. The simulations are conducted under different network radii and varied number of nodes.
Visual EKF-SLAM from Heterogeneous Landmarks
Authors: Esparza-Jiménez Jorge , Devy Michel , Gordillo José
Published: April 2016

Many applications require the localization of a moving object, e.g., a robot, using sensory data acquired from embedded devices. Simultaneous localization and mapping from vision performs both the spatial and temporal fusion of these data on a map when a camera moves in an unknown environment. Such a SLAM process executes two interleaved functions: the front-end detects and tracks features from images, while the back-end interprets features as landmark observations and estimates both the landmarks and the robot positions with respect to a selected reference frame. This paper describes a complete visual SLAM solution, combining both point and line landmarks on a single map. The proposed method has an impact on both the back-end and the front-end. The contributions comprehend the use of heterogeneous landmark-based EKF-SLAM (the management of a map composed of both point and line landmarks); from this perspective, the comparison between landmark parametrizations and the evaluation of how the heterogeneity improves the accuracy on the camera localization, the development of a front-end active-search process for linear landmarks integrated into SLAM and the experimentation methodology.
Frequency Management for Electromagnetic Continuous Wave Conductivity Meters
Authors: Mazurek Przemyslaw , Putynkowski Grzegorz
Published: April 2016

Ground conductivity meters use electromagnetic fields for the mapping of geological variations, like the determination of water amount, depending on ground layers, which is important for the state analysis of embankments. The VLF band is contaminated by numerous natural and artificial electromagnetic interference signals. Prior to the determination of ground conductivity, the meter’s working frequency is not possible, due to the variable frequency of the interferences. Frequency management based on the analysis of the selected band using track-before-detect (TBD) algorithms, which allows dynamical frequency changes of the conductivity of the meter transmitting part, is proposed in the paper. Naive maximum value search, spatio-temporal TBD (ST-TBD), Viterbi TBD and a new algorithm that uses combined ST-TBD and Viterbi TBD are compared. Monte Carlo tests are provided for the numerical analysis of the properties for a single interference signal in the considered band, and a new approach based on combined ST-TBD and Viterbi algorithms shows the best performance. The considered algorithms process spectrogram data for the selected band, so DFT (Discrete Fourier Transform) could be applied for the computation of the spectrogram. Real–time properties, related to the latency, are discussed also, and it is shown that TBD algorithms are feasible for real applications.
Building an Enhanced Vocabulary of the Robot Environment with a Ceiling Pointing Camera
Authors: Rituerto Alejandro , Andreasson Henrik , Murillo Ana , Lilienthal Achim , Guerrero José
Published: April 2016

Mobile robots are of great help for automatic monitoring tasks in different environments. One of the first tasks that needs to be addressed when creating these kinds of robotic systems is modeling the robot environment. This work proposes a pipeline to build an enhanced visual model of a robot environment indoors. Vision based recognition approaches frequently use quantized feature spaces, commonly known as Bag of Words (BoW) or vocabulary representations. A drawback using standard BoW approaches is that semantic information is not considered as a criteria to create the visual words. To solve this challenging task, this paper studies how to leverage the standard vocabulary construction process to obtain a more meaningful visual vocabulary of the robot work environment using image sequences. We take advantage of spatio-temporal constraints and prior knowledge about the position of the camera. The key contribution of our work is the definition of a new pipeline to create a model of the environment. This pipeline incorporates (1) tracking information to the process of vocabulary construction and (2) geometric cues to the appearance descriptors. Motivated by long term robotic applications, such as the aforementioned monitoring tasks, we focus on a configuration where the robot camera points to the ceiling, which captures more stable regions of the environment. The experimental validation shows how our vocabulary models the environment in more detail than standard vocabulary approaches, without loss of recognition performance. We show different robotic tasks that could benefit of the use of our visual vocabulary approach, such as place recognition or object discovery. For this validation, we use our publicly available data-set.
EXAMINING SPATIAL IDENTITY OF KAMPUNGS THROUGH YOUNG ADULTS’ PERCEPTION IN SURABAYA – INDONESIA
Authors: Damayanti Rully , Kossak Florian
Published: April 2016

Spatial identity is a result of a connection between people, physical elements of places, and activities associated with them. The development of identity occurs through the psychological process place attachment. This article is based on a research project that observed the spatial identity of young adults living in kampungs (urban villages), in Surabaya city. The young adults are faced with the contrast of a two-sided modernity between the kampungs and the city, which affects their attachment. The study of place attachment has been undertaken through an observation of social life of the participants and spatial perception. Through this study of spatial identity not only physical characteristics were identified, but also social characteristics. This is due to physical conditions of space and social interactions in these spaces are intertwined. The study found that the identity with the strongest attachment is related to social behaviour of the young adults but which is not recognised by current planning strategies. This study of spatial identity is suggesting that policy changes are needed to improve spatial environment of the kampungs.
DO UTOPIAN CITY DESIGNS FROM THE SOCIAL REFORM LITERATURE OF THE SEVENTEENTH AND NINETEENTH CENTURIES RESONATE WITH A MODERN AUDIENCE?
Authors: Morrison Tessa , Rubin Mark
Published: April 2016

Utopian cities from social reform literature from the seventeenth and nineteenth centuries were a serious attempt to improve living and working conditions of their time. Some of this literature included a design for a city that would be complimentary to and enhance the political philosophy of the respective authors. Four of the most famous works which include a plan of a city are, Tommaso Campanella’s Civitas Solis (City of the Sun) (1602), Johann Valentin Andreae’s Christianopolis (1619), Robert Owen’s Villages of Co-operation (1817 & 1830) and James Silk Buckingham’s Victoria (1849). These works are frequently featured in literature on utopian cities. However, no consideration is given to whether these ‘utopian’ cities have any value as urban plans or whether they incorporate any desirable urban features. These urban designs of the city are significant to political philosophies because the cities are presented as being integral to such philosophies. This paper considers the following questions: ‘Do the main principles behind the initial political philosophies and their coinciding plan endure within the design of these cities?’ ‘Does a modern audience perceive in these cities the features that made them utopian in the centuries in which they were planned?’
Triadic Substructures in Complex Networks
Authors: Winkler Marco
Published: April 2016

An important topological characteristic which has been studied on networks of diverse origin is the abundance of motifs – subgraph patterns which occur significantly more often than expected at random. We investigate whether motifs occur homogeneously or heterogeneously distributed over a graph. Analyzing real-world datasets, it is found that there are networks in which motifs are distributed highly heterogeneously, bound to the proximity of only very few nodes. Moreover, we study whole graphs with respect to the homogeneity and homophily of their node-specific triadic structure. The former describes the similarity of subgraphs in the neighborhoods of individual vertices. The latter quantifies whether connected vertices are structurally more similar than non-connected ones. These features are discovered to be characteristic for the networks' origins. Beyond, information on a graph's node-specific triadic structure can be used to detect groups of structurally similar vertices.
A Hybrid Complex Network Model for Wireless Sensor Networks and Performance Evaluation
Authors: Fazio Peppino , Tropea Mauro , Marano Salvatore , Curia Vincenzo
Published: April 2016

This chapter proposes a new approach, based on Complex Networks modeling, to alleviate the limitations of wireless communications. In fact, many recent studies have demonstrated that telecommunication networks can be well modeled as complex ones, instead of using the classic approach based on graph theory. The study of Complex Networks is a young and active area of scientific research, inspired largely by the empirical study of real-world networks, such as computers and social networks. The chapter contributes to the improvement of distributed communication, quantifying it in terms of clustering coefficient and average diameter of the entire network. The main idea consists in the introduction of Hybrid Data Mules (HDMs) that are able to enhance the whole connectivity of the entire network. The considered HDMs are equipped by “special” wireless devices, using two different transmission standards. The introduction of special nodes contributes to the improvement of network scalability, without substantial changes to the structure of the network.
GPU-Based Level Set Method for MRI Brain Tumor Segmentation using Modified Probabilistic Clustering
Authors: Kumar Ram , Rani Sweta , Sarkar Abahan , Talukdar Fazal Ahmed
Published: April 2016

The level set method (LSM) has been widely used in image segmentation due to its intrinsic nature which allows handling complex shapes and topological changes easily. We propose a new level set algorithm, which is based on probabilistic c mean objective function which incorporates intensity inhomogeneity in image and robust to noise. The computational complexity of the proposed LSM is greatly reduced by using highly parallelizable lattice Boltzmann method (LBM). So the proposed algorithm is effective and highly parallelizable. The proposed LSM is implemented using Experimental results demonstrate the performance of the proposed method.
Whole-Virion Influenza Vaccine Recalls an Early Burst of High-Affinity Memory B Cell Response through TLR Signaling
Authors: Onodera Taishi , Hosono Akira , Odagiri Takato , Tashiro Masato , Kaminogawa Shuichi , Okuno Yoshinobu , Kurosaki Tomohiro , Ato Manabu , Kobayashi Kazuo , Takahashi Yoshimasa
Published: April 2016

Inactivated influenza vaccines have two formulations, whole- and split-virion types; however, how differential formulations impact their booster effects remain unknown. In this study, we demonstrate that whole-virion vaccines recall two waves of Ab responses, early T cell–independent (TI) and late T cell–dependent responses, whereas split-virion vaccines elicit the late T cell–dependent response only. Notably, higher-affinity Abs with improved neutralizing activity are provided from the early TI response, which emphasizes the important contribution of the formulation-dependent response in the protective immunity. Moreover, we show that the early TI response completely requires B cell–intrinsic TLR7 signaling, which can be delivered through viral RNAs within whole-virion vaccine. Thus, our results indicate that TLR agonists in whole-virion type improve recall Ab responses by directly targeting memory B cells, a finding with important implications for vaccine strategies aimed at the prompt recall of high-affinity neutralizing Abs.
Type I and III IFNs Produced by Plasmacytoid Dendritic Cells in Response to a Member of theFlaviviridaeSuppress Cellular Immune Responses
Authors: Reid Elizabeth , Juleff Nicholas , Windsor Miriam , Gubbins Simon , Roberts Lisa , Morgan Sophie , Meyers Gregor , Perez-Martin Eva , Tchilian Elma , Charleston Bryan , Seago Julian
Published: April 2016

The pestivirus noncytopathic bovine viral diarrhea virus (BVDV) can suppress IFN production in the majority of cell types in vitro. However, IFN is detectable in serum during acute infection in vivo for ∼5–7 d, which correlates with a period of leucopoenia and immunosuppression. In this study, we demonstrate that a highly enriched population of bovine plasmacytoid dendritic cells (DCs) produced IFN in response to BVDV in vitro. We further show that the majority of the IFN produced in response to infection both in vitro and in vivo is type III IFN and acid labile. Further, we show IL-28B (IFN-λ3) mRNA is induced in this cell population in vitro. Supernatant from plasmacytoid DCs harvested postinfection with BVDV or recombinant bovine IFN-α or human IL-28B significantly reduced CD4+ T cell proliferation induced by tubercle bacillus Ag 85–stimulated monocyte-derived DCs. Furthermore, these IFNs induced IFN-stimulated gene expression predominantly in monocyte-derived DCs. IFN-treated immature DCs derived from murine bone marrow also had a reduced capacity to stimulate T cell proliferative responses to tubercle bacillus Ag 85. Immature DCs derived from either source had a reduced capacity for Ag uptake following IFN treatment that is dose dependent. Immunosuppression is a feature of a number of pestivirus infections; our studies suggest type III IFN production plays a key role in the pathogenesis of this family of viruses. Overall, in a natural host, we have demonstrated a link between the induction of type I and III IFN after acute viral infection and transient immunosuppression.
Resistance to Acute Macrophage Killing Promotes Airway Fitness of Prevalent Community-Acquired Staphylococcus aureus Strains
Authors: Yajjala Vijaya Kumar , Thomas Vinai Chittezham , Bauer Christopher , Scherr Tyler D. , Fischer Karl J. , Fey Paul D. , Bayles Kenneth W. , Kielian Tammy , Sun Keer
Published: April 2016

The incidence of methicillin-resistant Staphylococcus aureus (MRSA) pneumonia in otherwise healthy individuals is increasing. To investigate the mechanism underlying the epidemiological success of predominant community-associated (CA)-MRSA strains, we examined their fitness traits during the initial interaction between bacteria and the host occurring in the lower airway. Using a mouse respiratory infection model, we show that clinical isolates often responsible for CA infections are highly resistant to clearance from healthy airways, whereas S. aureus strains not as prevalent or traditionally associated with hospital-associated infections are relatively susceptible. Mechanistically, the competitive fitness of S. aureus is a result of both agr-dependent and -independent resistance to innate bacterial killing. Furthermore, we show that rather than evasion from neutrophil-dependent bactericidal process, the observed S. aureus fitness in the lower airways is due to its intrinsic resistance to resident alveolar macrophage–mediated intracellular killing. Importantly, we demonstrate that the virulence determinants responsible for bacterial persistence in immune-competent mice are dispensable in mice with predisposing conditions such as influenza infection. Taken together, these novel findings of the improved competence of predominant CA-MRSA strains to survive innate killing in healthy hosts, particularly at the very beginning stage of infection, provide a unique insight into their epidemiological success.
Internal Duplications of DH, JH, and C Region Genes Create an Unusual IgH Gene Locus in Cattle
Authors: Ma Li , Qin Tong , Chu Dan , Cheng Xueqian , Wang Jing , Wang Xifeng , Wang Peng , Han Haitang , Ren Liming , Aitken Robert , Hammarström Lennart , Li Ning , Zhao Yaofeng
Published: April 2016

It has been suspected for many years that cattle possess two functional IgH gene loci, located on Bos taurus autosome (BTA) 21 and BTA11, respectively. In this study, based on fluorescence in situ hybridization and additional experiments, we showed that all functional bovine IgH genes were located on BTA21, and only a truncated μCH2 exon was present on BTA11. By sequencing of seven bacterial artificial chromosome clones screened from a Hostein cow bacterial artificial chromosome library, we generated a 678-kb continuous genomic sequence covering the bovine IGHV, IGHD, IGHJ, and IGHC genes, which are organized as IGHVn-IGHDn-IGHJn-IGHM1-(IGHDP-IGHV3-IGHDn)3-IGHJn-IGHM2-IGHD-IGHG3-IGHG1-IGHG2-IGHE-IGHA. Although both of two functional IGHM genes, IGHM1 and IGHM2, can be expressed via independent VDJ recombinations, the IGHM2 can also be expressed through class switch recombination. Likely because more IGHD segments can be involved in the expression of IGHM2, the IGHM2 gene was shown to be dominantly expressed in most tissues throughout different developmental stages. Based on the length and identity of the coding sequence, the 23 IGHD segments identified in the locus could be divided into nine subgroups (termed IGHD1 to IGHD9). Except two members of IGHD9 (14 nt in size), all other functional IGHD segments are longer than 30 nt, with the IGHD8 gene (149 bp) to be the longest. These remarkably long germline IGHD segments play a pivotal role in generating the exceptionally great H chain CDR 3 length variability in cattle.
Life-threatening autoimmune hemolytic anemia and idiopathic thrombocytopenic purpura: successful seletive splenic artery embolization
Authors: Molica Matteo , Massaro Fulvio , Annechini Giorgia , Baldacci Erminia , D'elia Gianna maria , Rosati Riccardo , Trisolini Silvia maria , Volpicelli Paola , Foà Robin , Capria Saveria
Published: April 2016

Selective splenic artery embolization (SSAE) is a nonsurgical intervention characterized by the transcatheter occlusion of the splenic artery and/or its branch vessels using metallic coils or other embolic devices. It has been applied for the management of splenic trauma, hypersplenism with portal hypertension, hereditary spherocytosis, thalassemia and splenic hemangioma. We hereby describe a case of a patient affected by idiopathic thrombocytopenic purpura (ITP) and warm auto-immune hemolytic anemia (AIHA) both resistant to immunosuppressive and biological therapies, not eligible for a surgical intervention because of her critical conditions. She underwent SSAE and achieved a hematologic complete response within a few days without complications. SSAE is a minimally invasive procedure to date not considered a standard option in the management of AIHA and ITP. However, following the progressive improvement of the techniques, its indications have been extended, with a reduction in morbidity and mortality compared to splenectomy in patients with critical clinical conditions. SSAE was a lifesaving therapeutic approach for our patient and it may represent a real alternative for the treatment of resistant AIHA and ITP patients not eligible for splenectomy.
Approximate zero modes for the Pauli operator on a region
Authors: Elton Daniel M.
Published: April 2016

Let

\mathcal{P}_{\Omega,tB}

denoted the the Pauli operator on a bounded open region 

\Omega\subset\mathbb{R}^2

with Dirichlet boundary conditions and magnetic potential A scaled by some

t > 0

. Assume that the corresponding magnetic field

B = \mathrm {curl} A

satisfies

B \in L \mathrm {log} L (\Omega) \cap C^\alpha (\Omega_0)

where

\alpha>0

and

\Omega_0

is an open subset of

\Omega

of full measure (note that, the Orlicz space

L\log L(\Omega)

contains

L^p(\Omega)

for any

p>1

). Let

\mathsf{N}_{\Omega,tB}(\lambda)

denote the corresponding eigenvalue counting function. We establish the strong field asymptotic formula

\mathsf{N}_{\Omega,tA}(\lambda(t))=\frac{t}{2\pi}\int_{\Omega} \lvert B(x) \rvert\, dx\;+o(t)

as

t \to +\infty

, whenever

\lambda (t) = Ce^{-ct^\sigma}

for some

\sigma \in (0,1)

and

c,C > 0

. The corresponding eigenfunctions can be viewed as a localised version of the Aharonov–Casher zero modes for the Pauli operator on

\mathbb{R}^2

.
El videoclip postelevisivo actual. Propuesta metodológica y análisis estético
Authors: Sedeño Valdellós Ana , Rodríguez López Jennifer , Roger Acuña Santiago
Published: April 2016

En la actualidad los vídeos musicales son difundidos a través de plataformas en Internet, medio que permite mayor interactividad, accesibilidad y elección activa por parte del usuario. Como consecuencia, parece necesario retomar el análisis del videoclip actual, que podría denominarse postelevisivo, como textos audiovisuales, en lo relacionado con la letra, los visuales, la presencia del cantante en cuadro, variables clásicas en otros estudios del videoclip. Metodología: Se analizan cuarenta vídeos musicales en torno a dos categorías con una propuesta metodológica basada en la segmentación y medida del ASL (Average Shot Length), las relaciones entre la banda sonora y su representación audiovisual, así como entre la música y la letra, el tipo de videoclip desarrollado y el porcentaje de apariciones y primeros planos del cantante. Resultados y conclusiones: Tras el estudio de la muestra se destacan algunos rasgos básicos como el predominio de la tipología performativa en un grupo de videoclips analizados, y los de la categoría conceptual en el otro, a lo que vienen asociadas ciertos registros de ASL, así como formas de relacionar visuales y música según un tipo de correspondencia kinética o de contenido y letras y visuales mediante una amplificación de lo expuesto en las primeras
El Teatro Romano de Sagunto: avatares de una década
Authors: Lara Ortega Salvador
Published: April 2016

La polémica intervención de los arquitectos Giorgio Grassi y Manuel Portaceli en el Teatro Romano de Sagunto ha recobrado actualidad ante la reciente sentencia de los tribunales de justicia que conmina a la demolición de las obras ejecutadas. El profesor Lara Ortega, buen conocedor del monumento, describe la trayectoria del mismo en la última década de la mano de las críticas vertidas durante este tiempo y aporta su interpretación y su visión personal al delicado problema de la de-restauración del conjunto.
La restauración de las Torres de Serranos de Valencia
Authors: Mileto Camilla , Cervera Arias Francisco
Published: April 2016

La reciente restauración de las emblemáticas Torres de Serranos, emprendida por equipo interdisciplinar, ha servido como excusa para la profundización en el conocimiento de su historia, fábricas y avatares, desde su propia formación y su posterior empleo como cárcel, hasta su restauración decimonónica y posteriores reparaciones. Las labores de limpieza de los paramentos han permitido el estudio directo de sus fábricas, que ha aportado gran cantidad de información complementaria a la rigurosa investigación histórica. El plan de mantenimiento previsto para el futuro constituye una interesante propuesta donde prevalece el buen sentido sobre la habitual improvisación que rige la restauración monumental en nuestros días.
Consolidación y restauración de revocos esgrafiados en la iglesia parroquial de Nuestra Señora de la Asunción de Traiguera
Authors: Gavenda Milos , Hosek Jiri , Hopeck Jan
Published: April 2016

La intervención del artículo anterior se realizó juntamente con la consolidación y restauración del magnífico manto de esgrafiados que decora las bóvedas del templo que se presenta a continuación. Esta actuación constituye un caso ejemplar de estudio y análisis material de revocos esgrafiados previo a su rescate incluso en aquellos casos donde parecía imposible su recuperación, dado el estado de deterioro y las dificultades presentes. Representa además una aportación al conocimiento de la tradición de los revocos esgrafiados en el Levante español, tanto en su materialidad como en su iconografía.
La reconstrucción de Varsovia tras la Segunda Guerra Mundial
Authors: Salas Ballestín Juan Carlos
Published: April 2016

La destrucción completa de Varsovia no fue por bombardeo, sino tuvo lugar de una manera fría y sistemática, manzana por manzana, por orden de Hitler, como represalia tras la sublevación espontánea de los habitantes de la ciudad en el denominado Levantamiento de Varsovia. Su reconstrucción se llevó a cabo en diversos grados de fidelidad e interpretación y con opciones críticas respecto a la estratificación de los monumentos y de la ciudad a través de la historia, llegando incluso a elegir hasta dónde se querían retroceder las agujas del reloj en la intervención. Más allá de cualquier consideración, la reconstrucción de Varsovia constituye un ejemplo de la tenacidad de un pueblo por aferrarse a la identidad construida que encarna su ciudad.
El comportamiento a largo plazo de torres y estructuras de fábrica. El Campanario de la Catedral de Monza
Authors: Binda Luigia , Saisi Antonella , Tiraboschi Claudia
Published: April 2016

Tras el colapso de varios edificios de fábrica y torres en algunos países como Italia, los autores han formulado la hipótesis de un posible deterioro continuo de dichas estructuras debido tanto a las solicitaciones derivadas del peso propio como de las cargas cíclicas (viento, variaciones de temperatura, etc). El comportamiento a largo plazo de la mampostería histórica ha sido también objeto de estudio mediante un seguimiento continuo de ensayos en laboratorio y la aplicación de pruebas cíclicas. Los resultados indican que una investigación, tanto en laboratorio e in situ, sumada a una modelización analítica puede resultar fundamental en casos de campanarios de cierta altura. A continuación, se propone la aplicación de dichos procedimientos en el Campanario de la Catedral de Monza.
Evaluation of NO+ reagent ion chemistry for on-line measurements of atmospheric volatile organic compounds
Authors: Koss Abigail R. , Warneke Carsten , Yuan Bin , Coggon Matthew M. , Veres Patrick R. , de Gouw Joost A.
Published: April 2016

Abstract. NO+ chemical ionization mass spectrometry (NO+ CIMS) can achieve fast (sub 1-Hz) on-line measurement of trace atmospheric volatile organic compounds (VOCs) that cannot be ionized with H3O+ ions (e.g. in a PTR-MS or H3O+ CIMS instrument). Here we describe the adaptation of a high-resolution time-of-flight H3O+ CIMS instrument to use NO+ primary ion chemistry. We evaluate the NO+ technique with respect to compound specificity, sensitivity, and VOC species measured compared to H3O+. The evaluation is established by a series of experiments including laboratory investigation using a gas-chromatography (GC) interface, in-situ measurement of urban air using a GC interface, and direct in-situ measurement of urban air. The main findings are that (1) NO+ is useful for isomerically resolved measurements of carbonyl species; (2) NO+ can achieve sensitive detection of small (C4–C8) branched alkanes, but is not unambiguous for most; and (3) compound-specific measurement of some alkanes, especially iso-pentane, methylpentanes, and high mass (C12–C15) n-alkanes, is possible with NO+. We also demonstrate fast in-situ chemically specific measurements of C12 to C15 alkanes in ambient air.
Equivalent currents associated with morning-sector geomagnetic Pc5 pulsations during auroral substorms
Authors: Kauristie K. , Uspensky M. V. , Kleimenova N. G. , Kozyreva O. V. , Van De Kamp M. M. J. L. , Dubyagin S. V. , Massetti S.
Published: April 2016

Abstract. Space and time variations of equivalent currents during morning-sector Pc5 pulsations (T  ∼  2–8 min) on 2 days (18 January and 19 February 2008) are studied in the context of substorm activity with THEMIS and MIRACLE ground-based instruments and THEMIS P3, P5, and P2 probes. These instruments covered the 22:00–07:00 magnetic local time during the analyzed events. In these cases abrupt changes in the Pc5 amplitudes, intensifications and/or weakenings, were recorded some minutes after auroral breakups in the midnight sector. We analyze three examples of Pc5 changes with the goal to resolve whether substorm activity can have an effect on Pc5 amplitude or not. In two cases (on 19 February) the most likely explanation for Pc5 amplitude changes comes from the solar wind (changes in the sign of interplanetary magnetic field Bz). In the third case (on 18 January) equivalent current patterns in the morning sector show an antisunward-propagating vortex which replaced the Pc5-related smaller vortices and consequently the pulsations weakened. We associate the large vortex with a field-aligned current system due to a sudden, although small, drop in solar wind pressure (from 1 to 0.2 nPa). However, the potential impact of midnight substorm activity cannot be totally excluded in this case, because enhanced fluxes of electrons with high enough energies (∼  280 keV) to reach the region of Pc5 within the observed delay were observed by THEMIS P2 at longitudes between the midnight and morning-sector instrumentation.
Drogas e violência: percepção social em uma comunidade
Authors: Reis Lúcia Margarete dos , Oliveira Magda Lúcia Félix de
Published: April 2016

Objetivou-se investigar a percepção social sobre drogas de abuso e violência em uma comunidade do Noroeste do Paraná. Pesquisa transversal, descritiva, utilizando questionário estruturado, aplicado a 358 moradores. Dos 358 entrevistados, 98,6% referiram que percebem a presença de drogas em elevada intensidade (82,4%), situação considerada “preocupante” para 56,1% e motivo de sofrimento para 61,5%. Setenta e oito entrevistados (22,1%) informaram que a presença de drogas causou alteração em sua vida familiar (22,1%) e social (29,5%) e no comportamento familiar (24,9%), e 72,6% apontaram restrições em suas atividades pelo medo de sofrer violências. O principal motivo da circulação e consumo de drogas foi relacionado à ausência de policiamento (31,4%). A maioria (90.2%) percebe a presença de violência e destes 93,8% a relacionaram com o uso de drogas. A presença de violência foi majoritariamente relacionada ao uso de drogas, e ocorre devido à ausência de policiamento e combate ao tráfico na comunidade.
Validação de Diagnósticos de Enfermagem da CIPE® para assistência às mulheres no período pós-parto
Authors: Olegário Walnizia Kessia Batista , Fernandes Leiliane Teixeira Bento , Medeiros Cláudia Maria Ramos
Published: April 2016

A validação de nomenclatura possibilita uma contribuição no cuidado prestado pela Enfermagem, estimulando e direcionando mudanças necessárias para a melhoria da qualidade da atenção à saúde da mulher.  O estudo objetivou validar afirmativas de Diagnósticos de Enfermagem da CIPE® para a assistência de enfermagem às mulheres no período pós-parto. Trata-se de um estudo metodológico, composto por três etapas: seleção das afirmativas, análise semântica e cálculo do Índice de Concordância. A amostra foi composta por 12 experts em Enfermagem Obstétrica e utilizou-se um instrumento contendo itens de interesse da investigação. Foram validados 30 (88,23%) Diagnósticos de Enfermagem da CIPE®, sendo apenas quatro não validados. O estudo evidenciou a necessidade de se investigar e atualizar os termos da CIPE®permanentemente. Além disso, a proposta e tendência de utilização de prontuários eletrônicos nas instituições de saúde apontam para a necessidade de validar, uniformizar e legitimar Diagnósticos de Enfermagem para a prática clínica.
Enviro-Economic Assessment of Energy Conservation Methods in Commercial Greenhouses in Iran
Authors: Vadiee Amir , Yaghoubi Mahmoud
Published: April 2016

Population growth, rapid cultural development and urbanization have led to increased food demand. However, in Iran, due to limited water resources, only about 50% of the total arable area can be used for horticultural purposes. Therefore, yield improvement is very dependent on high-efficiency horticultural technologies such as commercial greenhouses. Although better yields can be obtained in commercial greenhouses than in field-scale cultivation, the energy demand is considerably higher. Moreover, the investment and energy costs are correspondingly larger in commercial greenhouses compared with any other horticultural sector. Hence energy conservation in commercial greenhouses has been emphasized in recent years in order to sustain more cost-efficient crop production. A study on energy use in the commercial greenhouse sector can thus help to identify the challenges and options for improving profitability. In this paper, the authors assess the commercial greenhouse industry in Iran, including the number of existing and planned greenhouses, plus the range in yield and energy use in the sector compared with other agricultural sectors. The results are based on a ‘typical’ commercial greenhouse for the region. The results show that the solar blind system can reduce heating and cooling demand by 60% and 90% respectively. The solar blind system can supply 70 kWh/m2 of electricity annually, which can be used for supplementary lighting or cooling systems. The maximum electrical power that can be supplied by a solar blind system is estimated to be about 113 kW per m2 of photovoltaic module. The implications for the horticultural greenhouse industry are discussed.
DETERMINAÇÃO DO ALBEDO DE SUPERFÍCIE EM ÁREAS IRRIGADAS DO PROJETO JAÍBA (MINAS GERAIS), MEDIANTE IMAGENS LANDSAT 5 - TM
Authors: Veloso Gabriel Alves , Ferreira Manuel Eduardo , Rosa Roberto , Da Silva Bernardo Barbosa
Published: April 2016

O presente estudo teve como objetivo determinar o albedo de áreas irrigadas do projeto Jaíba. A área de estudo encontra-se localizada no Norte de Minas Gerais, entre as coordenadas UTM de 595204 e 626309 E e 8308401 e 8341257 N. Na elaboração do trabalho foram utilizadas imagens TM do Satélite Landsat 5, órbita/ponto 219/70, obtidas nos dias 31 de janeiro, dia Juliano 31 (DJ31), 21 de abril (DJ111), 24 de junho (DJ175), 10 de julho (DJ191) e 12 de setembro (DJ255), todas do ano de 2011. A determinação do albedo de superfície foi realizada segundo os procedimentos do algoritmo SEBAL (Surface Energy Balance Algorithm for Land), que se baseia na radiância dos canais refletivos do TM.  A pesquisa obteve valores de albedo de superfície dos dias 31 e 111 para o rio São Francisco na ordem de 9 a 13%, associados ao aumento da carga de sedimentos provocado pela estação chuvosa. Os resultados do albedo de vegetação nativa foram os que demonstraram maior variação, apresentando valores na ordem de 9 a 16%. Este resultado pode estar associado à dinâmica que as estações do ano imprimem na vegetação e na pastagem, sendo que o dia 255 apresentou maior variação no período analisado, período este correspondente ao de estiagem. Os valores observados nas áreas irrigadas foram na ordem de 16 a 23%, enquanto os valores de vegetação degradada, pastagem e solo exposto variaram na ordem de 23 a 32%, sendo estes coerentes com os encontrados na literatura.
A Multi-Perspective Investigation into Learners’ Interaction in Asynchronous Computer-Mediated Communication (CMC)
Authors: Çardak Çigdem Suzan
Published: April 2016

This article focusses on graduate level students’ interactions during asynchronous CMC activities of an online course about the teaching profession in Turkey. The instructor of the course designed and facilitated a semester-long asynchronous CMC on forum discussions, and investigated the interaction of learners in multiple perspectives: learners’ views, participation in terms of quantity, participation in terms of discussed issues and collaborative construction of new knowledge. 14 graduate students were participated in the study and 12 of them were interviewed. Meanwhile, 345 messages sent by the learners and the instructor were analyzed in order to identify discussed issues and social construction of knowledge. The results of the study showed that according to the message numbers and views of the learners, learner-instructor interaction was ahead of learner-learner interaction. Meanwhile, learner-content interaction was sustained by various discussion topics. Though learners’ views related to learner-learner, learner-instructor and learner-content interactions were positive in general, analyzing the contents of the messages didn’t reveal higher levels of co-construction of knowledge according to the Interaction Analysis Model.
The Moderating Effects of Job Satisfaction on the Relationship between Personality Traits and Customer-oriented Behavior in the Malaysian Health Tourism Industry
Authors: Hee Ong Choon , Abidin Azzizat Binti Zainal
Published: April 2016

This paper aims to analyze the relationship between personality traits, customer-oriented behavior and job satisfaction. Focusing on the moderating role of job satisfaction in enhancing customer oriented behavior, the research was set in the context of Malaysian health tourism industry. The respondents consisted of nurses in health tourism hospitals in Malaysia. A quantitative cross sectional survey method was adopted, coupled with factor analysis and hierarchical regression analysis to analyze the collected data. The findings of this study revealed that extraversion and agreeableness were positively and significantly related to customer-oriented behaviour. Further, job satisfaction was found to be a quasi-moderator that interacted with extraversion to predict customer-oriented behavior. The findings of this research facilitate health tourism organizations to identify, recruit and train nurses who possess the right personality traits, structure the values of the organization and nurture a conducive work environment in order to maximize nurses’ job satisfaction that effectively improves their behavior towards customers and ultimately the performance of the firms.