bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hybrid improved empirical mode decomposition and BP neural network model for the prediction of sea surface temperature
Authors: Wu Zhiyuan , Jiang Changbo , Conde Mack , Deng Bin , Chen Jie 
Published: April 2019

Abstract. Sea surface temperature (SST) is the major factor that affects the
ocean–atmosphere interaction, and in turn the accurate prediction of SST is
the key to ocean dynamic prediction. In this paper, an SST-predicting method
based on empirical mode decomposition (EMD) algorithms and back-propagation
neural network (BPNN) is proposed. Two different EMD algorithms have been
applied extensively for analyzing time-series SST data and some nonlinear
stochastic signals. The ensemble empirical mode decomposition (EEMD) algorithm
and complementary ensemble empirical mode decomposition (CEEMD) algorithm
are two improved algorithms of EMD, which can effectively handle the
mode-mixing problem and decompose the original data into more stationary
signals with different frequencies. Each intrinsic mode function (IMF) has
been taken as input data to the back-propagation neural network model. The
final predicted SST data are obtained by aggregating the predicted data of
individual series of IMFs (IMFi). A case study of the monthly mean SST anomaly (SSTA) in the
northeastern region of the North Pacific shows that the proposed hybrid
CEEMD-BPNN model is much more accurate than the hybrid EEMD-BPNN model, and
the prediction accuracy based on a BP neural network is improved by the CEEMD
method. Statistical analysis of the case study demonstrates that applying
the proposed hybrid CEEMD-BPNN model is effective for the SST prediction.
Highlights include the following: Highlights.
An SST-predicting method based on the hybrid EMD algorithms and BP neural
network method is proposed in this paper. SST prediction results based on the hybrid EEMD-BPNN and CEEMD-BPNN models
are compared and discussed. A case study of SST in the North Pacific shows that the proposed hybrid
CEEMD-BPNN model can effectively predict the time-series SST.
Cálculo del ingreso nacional bruto en dólares utilizando el factor de conversión Atlas del Banco Mundial
Authors: Canales Ricardo José 
Published: April 2019

El artículo tiene como objetivo mostrar el cálculo del Ingreso Nacional Bruto en dólares mediante el Método Atlas del Banco Mundial. Es un estudio cuantitativo, se utiliza una serie de tiempo del 2013 al 2017. Las estimaciones muestran un crecimiento del PNB per cápita del 4.3% promedio anual. En este mismo periodo el consumo per cápita de los hogares creció 3.5% anual. El tipo de cambio estimado con el método Atlas tiene una evolución más estable que el tipo de cambio nominal. La técnica estima un tipo de cambio promedio de los últimos tres periodos ajustados por la diferencia entre la tasa de inflación del país y la de Estados Unidos.
La práctica de actividad física y su relación con la satisfacción laboral en una consultora informática
Authors: Gómez-Chacón R. , Morales-Sánchez V. , Hernández-Mendo A. , Muñoz-Llerena A. 
Published: April 2019

Las organizaciones actuales y modernas están iniciándose en implementar acciones de gestión y promoción de la salud con el objeto de mejorar su calidad de vida y la productividad de la empresa. Una de las variables que impacta en la productividad es la satisfacción laboral, por lo que el propósito de este estudio fue conocer qué tipo de relación existe entre la práctica de actividad física y la satisfacción laboral en Emergya, una consultoría informática. La muestra fueron 152 empleados que contestaron al cuestionario IPAQ para valorar su práctica de actividad física y una pregunta subjetiva sobre la satisfacción laboral. Los resultados mostraron que existen diferencias significativas, siendo los practicantes de actividad física vigorosa (M = 4,19), los practicantes de actividad física moderada (M = 4,15) y los practicantes de actividad física baja (M = 3,38). Por lo tanto los hallazgos concluyen que la práctica de actividad física, de manera vigorosa y moderada influye positivamente en la satisfacción laboral de los empleados.
Current and modern organizations are beginning to implement health management and promotion actions in order to improve their quality of life and the productivity of the company. One of the variables that impacts productivity is job satisfaction, so the purpose of this study was to know what kind of relationship exists between the practice of physical activity and job satisfaction in Emergya, a computer consultancy. The sample consisted of 152 employees who answered the IPAQ questionnaire to assess their physical activity practice and a subjective question about job satisfaction. The results showed that there are significant differences, being the practitioners of vigorous physical activity (M = 4,19), the practitioners of moderate physical activity (M = 4,15) and the practitioners of low physical activity (M = 3,38). Therefore, the findings conclude that the practice of physical activity, in a vigorous and moderate way, positively influences the job satisfaction of employees.
Una investigación sobre el efecto de mediación del estilo de afrontamiento sobre la relación entre la resiliencia psicológica y el estrés percibido en atletas con lesiones deportivas
Authors: Mohammadi F. 
Published: April 2019

Este estudio tuvo como objetivo evaluar el efecto de los estilos de afrontamiento en la relación entre la resistencia psicológica y el estrés percibido en atletas lesionados. La población estadística incluyó a 800 jugadores de equipos deportivos de las ligas deportivas nacionales iraníes, entre los que se seleccionaron 300 atletas como muestra del studio, basándose en la tabla de Morgan por un método de muestreo de conveniencia intencional. Los instrumentos de estudio fueron 3 cuestionarios estándar. La prueba del coeficiente de Pearson y la regresión lineal se usaron para probar las hipótesis. Los resultados mostraron que las dimensiones del estilo de afrontamiento del estrés tenían un efecto significativo sobre el estrés percibido y la resiliencia psicológica. A pesar de los problemas mentales y físicos que el estrés provoca para las personas, parece que no están inactivos hacia el estrés. Para lidiar con el estrés y sus consecuencias desfavorables, los individuos a menudo adoptan algunos comportamientos que se originan a partir de sus estilos de afrontamiento. A partir de las características de la personalidad, los estilos de afrontamiento de aproximación y evitación pueden ayudar a los pacientes lesionados a tener una capacidad de recuperación psicológica.
This study was aimed at evaluating the effect of coping styles on the relationship between psychological resilience and perceived stress among injured athletes. The statistical population included 800 players of sports teams of the Iranian national sports leagues, among whom 300 athletes were chosen as the study sample based on Morgan’s table by a purposive convenience sampling method. The study instruments were 3 standard questionnaires. Pearson Coefficient test and linear regression were used to test the hypotheses. The results showed that the dimensions of stress coping style had a significant effect on perceived stress and psychological resilience. Despite the mental and physical problems stress brings about for individuals, it seems they are not inactive toward stress. To cope with stress and its unfavorable consequences, individuals often adopt some behaviors which originate from their coping styles. As personality characteristics, approach and avoidance coping styles can help injured patients have psychological resilience.
Perfil del usuario de centros deportivos privados, según género, edad y nivel de antigüedad
Authors: Molina García N. , Mundina Gómez J. J. , Gómez Tafalla A. 
Published: April 2019

En los últimos años ha surgido una extrema necesidad de perfilar a los usuarios de instalaciones deportivas debido al crecimiento en el sector tratando de ser cada vez más competitivos adecuando la oferta a la demanda (Nuviala et al., 2014). El objetivo del presente estudio fue definir el perfil del usuario, en función de la calidad, satisfacción, valor percibido e intenciones futuras, analizando si éstas varían según el género, la edad y el nivel de antigüedad, en 481 socios de tres centros deportivos privados. Para ello, se les administró un cuestionario y se realizó una prueba t- para muestras independientes y un estudio de contraste grupo a grupo con la prueba t- del test de Scheffé y Tamhane. Los resultados indicaron que las variables estudiadas fueron más positivas para el participante de género femenino, de más de 40 años y con una antigüedad en el centro menor a un año.
In recent years, there has been an extreme need to profile the users of sports facilities due to the growth in the sector, trying to be more and more competitive by adapting supply to demand (Nuviala et al., 2014). The aim of this study was to define the user's profile, based on quality, satisfaction, perceived value and future intentions, analyzing whether these vary according to gender, age and seniority level, in 481 members of three private sports centers. For this purpose, a questionnaire was administered and a t-test was carried out for independent samples and a group-to-group contrast study with the t-test of Scheffé and Tamhane's test. The results indicated that the variables studied were more positive for the female participant, who was over 40 years old and had been in the center for less than a year.
Le gaspillage perçu des objets : une analyse par les théories de la distance psychologique et des niveaux de représentation
Authors: Guillard Valérie 
Published: April 2019

L’objectif de cet article est de comprendre dans quelle mesure les individus perçoivent qu’ils gaspillent des objets en empruntant les théories de la distance psychologique et des niveaux de représentation. L’analyse de 21 entretiens réalisés à domicile montre que les distances spatiale, temporelle, hypothétique et sociale aux objets influencent la façon dont les individus se représentent leur utilité (abstraite/concrète) et perçoivent ou non leur gaspillage. Plus précisément, les résultats montrent que : 1) les distances spatiale, temporelle et hypothétique aux objets génèrent une représentation abstraite de leur utilité ce qui conduit à un faible gaspillage perçu ; 2) la distance sociale au futur bénéficiaire des objets conduit à une représentation abstraite de leur usage et à un fort gaspillage perçu. Les implications théoriques, managériales et sociétales de ces résultats sont discutées.
L’intérêt des techniques mobile-in-store : le rôle spécifique de l’orientation d’achat
Authors: Stroz Joanna , Benavent Christophe , de Pechpeyrou Pauline 
Published: April 2019

L’enrichissement de l’expérience client est au cœur de la digitalisation des points de vente. Les techniques mobile-in-store , si elles délivrent des bénéfices utilitaires, hédoniques et symboliques, peuvent également être considérées comme intrusives, ce qui conduit à s’interroger sur l’intérêt que les consommateurs leur portent. Un questionnaire administré en ligne met en évidence, au-delà des effets constants des variables psychographiques, le rôle modérateur des orientations d’achat : une technique cohérente ( vs. incohérente) avec l’orientation du client augmente ( vs. réduit) l’intérêt qu’il lui porte. Ce résultat conduit à proposer des « bouquets » de techniques s’adaptant à chaque profil de client.
Quand « l’instruction à imaginer » fait évoluer la communication sur les vins
Authors: Bréhonnet Rémi , Lagier Joëlle 
Published: April 2019

Cet article étudie l’impact des instructions à imaginer les attributs du terroir vinicole sur l’attitude envers la publicité et les marques sur les vins dans le cadre du nouvel amendement de la Loi Evin. L’accent est mis sur le rôle joué par la quantité, la vivacité ainsi que l’élaboration des images mentales dans ce type de communication. Une recherche quantitative est menée sur les vins de Bordeaux. Les résultats soulignent le fait que la présence « d’instructions à imaginer » induit une attitude envers la publicité et la marque plus favorable, comparé à une publicité ne contenant pas d’instructions. Cette approche nous permet d’ouvrir de nouvelles voies de recherche dans ce domaine non encore investigué, notamment en termes de savoir mieux-consommer.
A new record of the Dwarf Sea Krait (Laticauda frontalis) from the Loyalty Islands, New Caledonia
Authors: Shine Richard , Shine Terri , Goiran Claire 
Published: April 2019

ABSTRACT
Common in Vanuatu, the Dwarf Sea Krait Laticauda frontalis also is known from five old records (in the 1880s and 1890s) from the Loyalty Islands, between Vanuatu and the main island of New Caledonia. Those records have been interpreted by some authorities as errors, or as reflecting occasional waifs rather than breeding populations. We now report an additional specimen of L. frontalis from the Loyalty Islands island of Maré, and we review distributional data for this species and for the closely allied L. saintgironsi. Sympatry on the western coast of Maré confirms that these two taxa warrant separate species status despite their minimal genetic divergence.
High-velocity, low-amplitude spinal manipulation training of prescribed forces and thrust duration: A pilot study
Authors: Shannon Zacariah K. , Vining Robert D. , Gudavalli Maruti Ram , Boesch Ron J. 
Published: April 2019

Objective
High-velocity, low-amplitude spinal manipulation (HVLA-SM) may generate different therapeutic effects depending on force and duration characteristics. Variability among clinicians suggests training to target specific thrust duration and force levels is necessary to standardize dosing. This pilot study assessed an HVLA-SM training program using prescribed force and thrust characteristics.

Methods
Over 4 weeks, chiropractors and students at a chiropractic college delivered thoracic region HVLA-SM to a prone mannequin in six training sessions, each 30 minutes in duration. Force plates embedded in a treatment table were used to measure force over time. Training goals were 350 and 550 Newtons (N) for peak force and ≤150 ms for thrust duration. Verbal and visual feedback was provided after each training thrust. Assessments included 10 consecutive thrusts for each force target without feedback. Mixed-model regression was used to analyze assessments measured before, immediately following, and 1, 4, and 8 weeks after training.

Results
Error from peak force target, expressed as adjusted mean constant error (standard deviation), went from 107 N (127) at baseline, to 0.2 N (41) immediately after training, and 32 N (53) 8 weeks after training for the 350 N target, and 63 N (148), −6 N (58), and 9 N (87) for the 550 N target. Student median values met thrust duration target, but doctors' were &gt;150 ms immediately after training.

Conclusion
After participation in an HVLA-SM training program, participants more accurately delivered two prescribed peak forces, but accuracy decreased 1 week afterwards. Future HVLA-SM training research should include follow-up of 1 week or more to assess skill retention.
Chemical Speciation and Fractionation Study of Heavy Metals in Top Sediment Deposit of Owena River, Nigeria
Authors: Rasheed Kolawole , Solomon Akinnawo , Aiyesanmi Ademola 
Published: April 2019

This study investigates the chemical speciation and fractionation of heavy metals (Cd, Cr, Cu, Ni and Pb) in relation to their levels of pollution from six different locations along the course of Owena River during the dry and wet season of 2015. The top sediment deposit was subjected to sequential extraction and the heavy metals were identified and quantified using atomic absorption spectrophotometer. The concentration of the analyzed heavy metals in the top sediment deposit were found to occur below the maximum permissible limit of the Dutch reference standard for soil/sediment, thereby the sediment collected from Owena river is not contaminated with the analyzed heavy metals. The overall results of this research suggest that the mobility and bioavailability of heavy metals in sediment collected from Owena River decreases in the following order: Cu > Pb > Cr > Cd > Ni.
Vertebral artery dissection associated with familial Mediterranean fever and Behçet's disease
Authors: Ishikawa Hidehiro , Shindo Akihiro , Ii Yuichiro , Sakano Shoko , Asahi Masaru , Matsuura Keita , Kishida Dai , Umino Maki , Maeda Masayuki , Tomimoto Hidekazu 
Published: April 2019

AbstractVertebral artery dissection and recurrent meningitis are rare complications in Behçet's disease. Behçet's disease may be associated with familial Mediterranean fever. Here, we describe a 52‐year‐old woman with severe headache who exhibited recurrent meningitis and vertebral artery dissection. Cerebrospinal fluid showed high levels of interleukin‐6. Magnetic resonance imaging revealed right vertebral artery dissection. The patient had three heterozygous mutations in the familial Mediterranean fever gene (MEFV) gene. She fulfilled criteria for diagnosis of Behçet's disease and familial Mediterranean fever. In conclusion, mutations of the MEFV gene may cause neuro‐inflammatory disorders and cerebrovascular disorders by reducing anti‐inflammatory activity of pyrin.
Chemoenzymatic Synthesis of Sialic Acid Derivatives Using Immobilized N‐Acetylneuraminate Lyase in a Continuous Flow Reactor
Authors: Bloemendal Victor R. L. J. , Moons Sam J. , Heming Jurriaan J. A. , Chayoua Mohamed , Niesink Olaf , van Hest Jan C. M. , Boltje Thomas J. , Rutjes Floris P. J. T. 
Published: April 2019

AbstractThe synthesis of N‐acetylneuraminic acid (Neu5Ac) derivatives is drawing more and more attention in glycobiology research because of the important role of sialic acids in e. g. cancer, bacterial, and healthy cells. Chemical preparation of these carbohydrates typically relies on multistep synthetic procedures leading to low overall yields. Herein we report a continuous flow process involving N‐acetylneuraminate lyase (NAL) immobilized on Immobead 150P (Immobead‐NAL) to prepare Neu5Ac derivatives. Batch experiments with Immobead‐NAL showed equal activity as the native enzyme. Moreover, by using a fivefold excess of either N‐acetyl‐D‐mannosamine (ManNAc) or pyruvate the conversion and isolated yield of Neu5Ac were significantly improved. To further increase the efficiency of the process, a flow setup was designed providing a chemoenzymatic entry into a series of N‐functionalized Neu5Ac derivatives in conversions of 48–82%, and showing excellent stability over 1 week of continuous use.magnified image
Enantioselective Isoprenylboration Reaction of Aldehydes Catalyzed by a Chiral Phosphoric Acid
Authors: Zhang Yu‐Long , He Bo‐Jun , Xie Yi‐Wen , Wang Yu‐Hao , Wang Yi‐Long , Shen Yong‐Cun , Huang Yi‐Yong 
Published: April 2019

AbstractThe BINOL‐derived chiral phosphoric acid (R)‐TRIP is utilized as an organocatalyst in the asymmetric isoprenylboration reaction of aldehydes, wherein hydrogen‐bond interactions play a key role in the control of enantioselectivity. A wide arrays of enantioenriched dienyl homoallyl alcohols, including two natural products (−)‐Ipsdienol and (−)‐Ipsenol, have been successfully constituted. The synthetic application to chiral isoprenylated isobenzofuranone, vinyloxirane and cyclohexene derivatives has also been disclosed.magnified image
Asymmetric Synthesis of Spirooxindoles with Seven Stereocenters via Organocatalyzed One‐pot Three‐component Sequential Cascade Reactions
Authors: Zhao Bo‐Liang , Du Da‐Ming 
Published: April 2019

AbstractA bifunctional squaramide‐catalyzed one‐pot three‐component Michael/Mannich‐Michael/cyclization sequential cascade reaction for the construction of bispirooxindole‐spirooxindoles was developed in good yields with excellent stereoselectivities (up to >20:1 dr, 99% ee). A series of original cinnamoyl‐3‐ylideneoxindoles have been applied to this sequential cascade strategy for the first time. This new strategy provides a process for the enantioselective construction of bispirooxindole‐spirooxindoles with seven stereocenters, of which three are quaternary spiro‐stereocenters.magnified image
Effect of individual food preferences on oscillatory brain activity
Authors: Tashiro Nachie , Sugata Hisato , Ikeda Takashi , Matsushita Kojiro , Hara Masayuki , Kawakami Kenji , Kawakami Keisuke , Fujiki Minoru 
Published: April 2019

AbstractObjectivesDuring the anticipatory stage of swallowing, sensory stimuli related to food play an important role in the behavioral and neurophysiological aspects of swallowing. However, few studies have focused on the relationship between food preferences and oscillatory brain activity during the anticipatory stage of swallowing. Therefore, to clarify the effect of individual food preferences on oscillatory brain activity, we investigated the relationship between food preferences and oscillatory brain activity during the observation of food images.MethodsHere we examined this relationship using visual food stimuli and electroencephalography (EEG). Nineteen healthy participants were presented 150 images of food in a random order and asked to rate their subjective preference for that food on a 4‐point scale ranging from 1 (don't want to eat) to 4 (want to eat). Oscillation analysis was performed using a Hilbert transformation for bandpass‐filtered EEG signals.ResultsThe results showed that the oscillatory beta band power on C3 significantly decreased in response to favorite foods compared to disliked food.ConclusionThis result suggests that food preferences may impact oscillatory brain activity related to swallowing during the anticipatory stage of swallowing. This finding may lead to the development of new swallowing rehabilitation techniques for patients with dysphagia by applying food preferences to modulate oscillatory brain activity.
Focus on Epithelialized Palatal Grafts. Part 2: Implant Site Development
Authors: Berridge Joshua P. , Johnson Thomas M. , Erley Kenneth J. , Hill Richard B. , Lane Jonathan D. , Schlam Kimberly K. , Dunham Daniel D. , Miller Preston D. 
Published: April 2019

IntroductionThe epithelialized palatal graft (EPG), introduced in 1963, has persisted as the gold standard for gingival augmentation, and in the present era, mucosal augmentation around dental implants has become an important concern. A limited body of evidence suggests peri‐implant mucosal augmentation may favorably impact bone and mucosal stability and peri‐implant health under some circumstances. Although more contemporary procedures for peri‐implant mucosal augmentation are often preferred based on convenience and esthetic considerations, EPG augmentation at dental implant sites is distinguishable from methods which do not deepen the vestibule and eliminate unfavorable superficial soft tissue. Implant sites augmented with EPG are qualitatively distinct from sites augmented using other methods.Case SeriesSeven generally healthy patients received EPG augmentation before dental implant placement, at implant placement, before implant uncovering, or after implant uncovering. In each case, the patient exhibited a favorable zone of attached peri‐implant mucosa following treatment.ConclusionsReliable mucosal augmentation with EPG is achievable at multiple phases in the course of dental implant therapy. EPG augmentation offers distinct clinical advantages and may be preferable to other mucosal augmentation strategies at some dental implant sites.