bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cardiovascular Responses, Perceived Exertion and Technical Actions During Small-Sided Recreational Soccer: Effects of Pitch Size and Number of Players
Authors: Aslan Alper 
Published: October 2013

Abstract
The aim of this study was to determine the cardiovascular, perceived exertion and technical effects of altering pitch size and number of players in recreational soccer match-play. The further aim was to evaluate to what extent exercise intensity during various game formats corresponds to the recommended intensity level for cardiovascular fitness improvement. Ten male recreational players aged 31.7±7.6 years (mean ± SD) completed four variations of smallsided games (except for goalkeepers, 5-a-side and 7-a-side on small and large pitches) during which heart rate, perceived exertion and technical actions were evaluated. Two-way analysis of variance on repeated measures was applied to collected data. The results indicated that an average workload expressed as heart rate and percentage of heart rate reserve during 5-a-side games was higher than for 7-a-side games. The rate of perceived exertion values were moderate and similar for all formats of games. The players performed more dribbling and successful passes, but fewer unsuccessful passes during 5-a-side games. Furthermore, the number of ball possessions and unsuccessful passes was higher on a small pitch than on a large one. Consequently, the current findings suggest that, independent of pitch size, the cardiovascular demands imposed on participants increase when the game is played with fewer players. However, all formats of recreational soccer can be used as an effective activity to promote cardiovascular fitness. Finally, participants may have more chance to perform basic technical actions during 5-a-side games on small and large pitches.
Competitive Performance, Training Load and Physiological Responses During Tapering in Young Swimmers
Authors: Toubekis Argyris G. , Drosou Evgenia , Gourgoulis Vassilios , Thomaidis Savvas , Douda Helen , Tokmakidis Savvas P. 
Published: October 2013

Abstract
The study examined the changes of training load and physiological parameters in relation to competitive performance during a period leading to a national championship. The training content of twelve swimmers (age: 14.2±1.3 yrs) was recorded four weeks before the national championship (two weeks of normal training and two weeks of the taper). The training load was calculated: i) by the swimmer’s session-RPE score (RPE-Load), ii) by the training intensity levels adjusted after a 7x200-m progressively increasing intensity test (LA-Load). Swimmers completed a 400- m submaximal intensity test, a 15 s tethered swimming and hand-grip strength measurements 34-35 (baseline: Test 1), 20-21 (before taper: Test 2) and 6-7 (Test 3) days before the national championship. Performance during the national championship was not significantly changed compared to season best (0.1±1.6%; 95% confidence limits: -0.9, 1.1%; Effect Size: 0.02, p=0.72) and compared to performance before the start of the two-week taper period (0.9±1.7%; 95% confidence limits: 0.3, 2.1%; Effect size: 0.12, p=0.09). No significant changes were observed in all measured physiological and performance related variables between Test 1, Test 2, and Test 3. Changes in RPE-Load (week-4 vs. week-1) were correlated with changes in performance (r=0.63, p=0.03) and the RPE-Load was correlated with the LALoad (r=0.80, p=0.01). The estimation of the session-RPE training load may be helpful for taper planning of young swimmers. Increasing the difference between the normal and last week of taper training load may facilitate performance improvements.
Activity Profiles of Soccer Players During the 2010 World Cup
Authors: Clemente Filipe Manuel , Couceiro Micael Santos , Lourenço Martins Fernando Manuel , Ivanova Monika Ognyanova , Mendes Rui 
Published: October 2013

Abstract
The main objective of this study was to analyse the distance covered and the activity profile that players presented at the FIFA World Cup in 2010. Complementarily, the distance covered by each team within the same competition was analysed. For the purposes of this study 443 players were analysed, of which 35 were goalkeepers, 84 were external defenders, 77 were central defenders, 182 were midfielders, and 65 were forwards. Afterwards, a thorough analysis was performed on 16 teams that reached the group stage, 8 teams that achieved the round of 16, 4 teams that reached the quarter-finals, and 4 teams that qualified for the semi-finals and finals. A comparison of the mean distance covered per minute among the playing positions showed statistically significant differences (F(4,438) = 559.283; p < 0.001; 2 = 0.836; Power = 1.00). A comparison of the activity time among tactical positions also resulted in statistically significant differences, specifically, low activity (F(4,183.371) = 1476.844; p < 0.001; 2 = 0.742; Power = 1.00), medium activity (F(4,183.370) = 1408.106; p < 0.001; 2 = 0.731; Power = 1.00), and high activity (F(4,182.861) = 1152.508; p < 0.001; 2 = 0.703; Power = 1.00). Comparing the mean distance covered by teams, differences that are not statistically significant were observed (F(3,9.651) = 4.337; p < 0.035; 2 = 0.206; Power = 0.541). In conclusion, the tactical positions of the players and their specific tasks influence the activity profile and physical demands during a match.
Performance Consistency of International Soccer Teams in Euro 2012: a Time Series Analysis
Authors: Shafizadeh Mohsen , Taylor Marc , Peñas Carlos Lago 
Published: October 2013

Abstract
The purpose of this study was to examine the consistency of performance in successive matches for international soccer teams from Europe which qualified for the quarter final stage of EURO 2012 in Poland and Ukraine. The eight teams that reached the quarter final stage and beyond were the sample teams for this time series analysis. The autocorrelation and cross-correlation functions were used to analyze the consistency of play and its association with the result of match in sixteen performance indicators of each team. The results of autocorrelation function showed that based on the number of consistent performance indicators, Spain and Italy demonstrated more consistency in successive matches in relation to other teams. This appears intuitive given that Spain played Italy in the final. However, it is arguable that other teams played at a higher performance levels at various parts of the competition, as opposed to performing consistently throughout the tournament. The results of the cross-correlation analysis showed that in relation to goal-related indicators, these had higher associations with the match results of Spain and France. In relation to the offensive-related indicators, France, England, Portugal, Greece, Czech Republic and Spain showed a positive correlation with the match result. In relation to the defensive-related indicators, France, England, Greece and Portugal showed a positive correlation with match results. In conclusion, in an international soccer tournament, the successful teams displayed a greater degree of performance consistency across all indicators in comparison to their competitors who occasionally would show higher levels of performance in individual games, yet not consistently across the overall tournament. The authors therefore conclude that performance consistency is more significant in international tournament soccer, versus occasionally excelling in some metrics and indicators in particular games.
An Ant Colony Algorithm for efficient ship routing
Authors: Tsou Ming-Cheng , Cheng Hung-Chih 
Published: October 2013

Abstract
With the substantial rising of international oil price and global warming on the rise, how to reduce operational fuel consumption and decrease air pollution has become one of the pursued goals of green ship. Ship route planning is an indispensible part of the ship navigation process, especially in transoceanic crossing ship routing. The soundness of ship routing not only affects the safety of ship navigation but also the operation economy and environmental protection. This research is based on the platform of Electronic Chart Display and Information System (ECDIS), and founded on Ant Colony Algorithm (ACA) combined with the concept of Genetic Algorithm (GA), to model living organisms optimization behaviour to perform efficient ship route planning in transoceanic crossing. Besides the realization of route planning automation, ship routing will achieve the goal of optimum carbon dioxide reduction and energy conservation, and provide reference for route planning decision.
Trade Flows between Czech Republic and East Asia
Authors: Tseng Shoiw-Mei 
Published: October 2013

Abstract
Since 2005, Czech Republic has succeeded in transforming its economy through international trade surplus. However, Czech Republic’s trade deficits with East Asia are burgeoning, not only in China but also in other East Asian countries. This study provides an insight into Czech Republic’s import/export performance in East Asia during 1999-2011. In this study, the geographic concentration of trade, on a macro view, is adapted to highlight Czech Republic’s new regional market of East Asia in contrast with its trade expansion in the world. In consideration of the general development of world trade, the probability model of trade flows, on a micro view, is employed to investigate Czech Republic’s trade flows of East Asian countries. The result suggests that Czech Republic is bound to encounter continuing trade imbalance with East Asia. Nevertheless, Czech Republic’s trade geographic concentration in East Asia has the potential to relax.
The variable, fractional-order discrete-time PD controller in the IISv1.3 robot arm control
Authors: Ostalczyk Piotr , Brzezinski Dariusz , Duch Piotr , Łaski Maciej , Sankowski Dominik 
Published: October 2013

AbstractIn this paper, the discrete differentiation order functions of the variable, fractional-order PD controller (VFOPD) are considered. In the proposed VFOPD controller, a variable, fractional-order backward difference is applied to perform closed-loop, system error, discrete-time differentiation. The controller orders functions which may be related to the controller input or output signal or an input and output signal. An example of the VFOPD controller is applied to the robot arm closed-loop control due to system changes in moment of inertia. The close-loop system step responses are presented.
Giant vulvar pendulated lypoma in patients with endometrial adenocarcinoma and inoperated giant ventral hernia
Authors: Habek Dubravko , Gverić Tugomir , Barić Marko , Smiljanić Miroslav , Prka Matija , Tomica Darko 
Published: October 2013

Abstract
A case is presented of a operated giant pedunculated vulvar lipoma weighing 14 kg in a patient with concomitant inoperable giant ventral postoperative hernia, complete diastasis of the anterior abdominal wall musculature and endometrial adenocarcinoma.
A triad of endocarditis, endophthalmitis, and meningitis
Authors: Kavoliūnienė Aušra , Jonkaitienė Regina , Urbonaitė Laura 
Published: October 2013

Abstract
Streptococcus pneumoniae is an uncommon cause of infective endocarditis; it often requires prolonged antibacterial treatment and involves a high mortality rate. We report a rare case of pneumococcal endocarditis manifesting with unusual complications — meningitis and endophthalmitis. Streptococcus pneumoniae species grew from the cerebrospinal fluid. The diagnosis of native aortic valve infective endocarditis was confirmed after some delay by transesophageal echocardiography. The patient’s eye was lost because of infective complications, but his life was saved following an aggressive antibacterial therapy in combination with an immediate aortic valve replacement.
Predictors of increased cumulative serum levels of the N-terminal prohormone of brain natriuretic peptide 4 days after acute spontaneous subarachnoid hemorrhage
Authors: Nyberg Christoffer , Karlsson Torbjörn , Ronne-Engström Elisabeth 
Published: October 2013

Object
The rupture of an intracranial aneurysm is followed by increased intracranial pressure and decreased cerebral blood flow. A major systemic stress reaction follows, presumably to restore cerebral blood flow. However, this reaction can also cause adverse effects, including myocardial abnormalities, which are common and can be serious, and increased levels of natriuretic peptides, especially brain natriuretic peptide (BNP). The association of BNP with fluid and salt balance, vasospasm, brain ischemia, and cardiac injury has been studied but almost exclusively regarding events after admission. Brain natriuretic peptide has also been measured at various time points and analyzed in different ways statistically. The authors approached BNP measurement in a new way; they used the calculated area under the curve (AUC) for the first 4 days to quantitatively measure the BNP load during the first critical part of the disease state. Their rationale was a suspicion that early BNP load is a marker of the severity of the ictus and will influence the subsequent course of the disease by disturbing the fluid and salt balance.

Methods
The study included 156 patients with acute spontaneous subarachnoid hemorrhage (SAH). Mean patient age was 59.8 ± 11.2 years, and 105 (67%) of the patients were female. An aneurysm was found in 138 patients. A total of 82 aneurysms were treated by endovascular coiling, 50 were treated by surgery, and 6 were untreated. At the time of admission, serum samples were collected for troponin-I analysis and for the N-terminal prohormone of BNP (NT-proBNP); daily thereafter, samples were collected for the NT-proBNP analysis. The cumulative BNP load was calculated as the AUC for NT-proBNP during the first 4 days. The following variables were studied in terms of their influence on the AUC for NT-proBNP: sex, age, World Federation of Neurosurgical Societies grade of SAH, Fisher grade, angiographic result, treatment of aneurysm, clinical neurological deterioration, verified infections, vasospasm treatment, and 6-month outcome.

Results
The AUC for NT-proBNP was larger when variables indicated a more severe SAH. These variables were higher Fisher and World Federation of Neurosurgical Societies grades, high levels of troponin-I at admission, an aneurysm, neurological deficits, and infections. The AUC for NT-proBNP was also larger among women, older patients, and patients with poor outcomes. Linear regression showed that the best predicting model for large AUC for NT-proBNP was the combination of the following: female sex, high levels of troponin-I, an aneurysm, neurological deficits, and advanced age.

Conclusions
The cumulative BNP load during the first days after SAH can be predicted by variables describing the severity of the disease already known at the time of admission. This information can be used to identify patients at risk for an adverse course of the disease.
Pallidal deep brain stimulation for dystonia: a case series
Authors: Petrossian Melita T. , Paul Lisa R. , Multhaupt-Buell Trisha J. , Eckhardt Christine , Hayes Michael T. , Duhaime Ann-Christine , Eskandar Emad N. , Sharma Nutan 
Published: October 2013

Object
Pallidal deep brain stimulation (DBS) is a treatment option for those with early-onset dystonia. However, there are limited data on long-term outcome and treatment complications. The authors report on the short- and long-term effects of pallidal DBS in a cohort of patients with early-onset dystonia.

Methods
Fourteen consecutive pediatric patients with early-onset dystonia were systematically evaluated and treated. The duration of follow-up ranged from 16 to 84 months.

Results
There were no immediate postoperative complications. At last follow-up, 12 of the 14 patients displayed a significant decline in the Burke-Fahn-Marsden Dystonia Rating Scale motor subscale score, with an average decrease of 62% ± 8.4%. The most common hardware complication was lead fracture (14.3%).

Conclusions
These data provide further evidence that DBS is a safe and effective treatment for those with earlyonset dystonia.
Exogenous OX40 Stimulation during Lymphocytic Choriomeningitis Virus Infection Impairs Follicular Th Cell Differentiation and Diverts CD4 T Cells into the Effector Lineage by Upregulating Blimp-1
Authors: Boettler Tobias , Choi Youn Soo , Salek-Ardakani Shahram , Cheng Yang , Moeckel Friedrich , Croft Michael , Crotty Shane , von Herrath Matthias 
Published: October 2013

Abstract
T cell costimulation is a key component of adaptive immunity to viral infection but has also been associated with pathology because of excessive or altered T cell activity. We recently demonstrated that the TNFR family costimulatory molecule OX40 (CD134) is critically required to sustain antiviral T cell and Ab responses that enable control of viral replication in the context of chronic lymphocytic choriomeningitis virus (LCMV) infection. In this study, we investigated whether reinforcing OX40 stimulation through an agonist Ab had the potential to prevent LCMV persistence. We observed that anti-OX40 injection early after LCMV clone 13 infection increased CD8 T cell–mediated immunopathology. More strikingly, OX40 stimulation of virus-specific CD4 T cells promoted expression of the transcriptional repressor Blimp-1 and diverted the majority of cells away from follicular Th cell differentiation. This occurred in both acute and chronic infections, and resulted in dramatic reductions in germinal center and Ab responses to the viral infection. The effect of the OX40 agonist was dependent on IL-2 signaling and the timing of OX40 stimulation. Collectively, our data demonstrate that excessive OX40 signaling can result in deleterious consequences in the setting of LCMV infection.
Marcas de destino y evaluación de sitios web: una metodología de investigación
Authors: Fernández-Cavia José , Díaz-Luque Pablo , Huertas Assumpció , Rovira Cristòfol , Pedraza-Jimenez Rafael , Sicilia María , Gómez Puertas Lorena , Míguez González María Isabel 
Published: October 2013

La Web se ha convertido en el principal instrumento de búsqueda de información por parte de los turistas. Por este motivo, los portales turísticos de los destinos deben resultar atractivos y comunicar de una manera adecuada y eficaz su imagen de marca. No existe, sin embargo, una metodología de evaluación de la calidad y eficacia comunicativa de los sitios web de destino que sea científicamente sólida y universalmente aceptada. El desarrollo de esa metodología es una de las tareas que nos hemos propuesto en el marco del proyecto de investigación “Nuevas estrategias de publicidad y promoción de las marcas turísticas españolas en la web” (CSO2008-02627), financiado por el Ministerio de Ciencia e Innovación del Gobierno de España. Metodología: El equipo del proyecto ha elaborado una plantilla de análisis interdisciplinaria y omnicomprensiva que combina algunos análisis automatizados con otros de tipo cualitativo y cuantitativo. La plantilla contempla un total de doce temáticas y 154 indicadores, que se han elaborado a partir de la aportación de destacados expertos en cada una de las áreas de trabajo. En este artículo se expone la metodología de análisis elaborada y se explican las aplicaciones posibles. Resultados: El proyecto ha elaborado una metodología de evaluación que permite optimizar los sitios web de las marcas de destino, apoyando, así, el trabajo de los gestores públicos de los destinos turísticos.
Topographic and Tomographic Indices for Detecting Keratoconus and Subclinical Keratoconus: A Systematic Review
Authors: Smadja David 
Published: October 2013

Abstract

Purpose
To provide an overview of the topographic and tomographic indices developed for detecting keratoconus (KC) and subclinical keratoconus.

Methods
Literature review of studies describing and testing KC indices as well as indices developed for improving the sensitivity of subclinical KC detection.

Results
Several indices, based on anterior and posterior curvature measurements, corneal spatial distribution or posterior corneal elevation have been developed for improving the detection of KC and subclinical KC. However, to date, none of them could reach, alone, sufficient discriminating power for differentiating the mildest forms of the disease from normal corneas. New detection programs, based on a combination of corneal indices, and generated using artificial intelligence emerged recently and helped to significantly improve the subclinical KC detection.

Conclusion
The combination of topographic and tomographic corneal indices has helped to significantly improve the sensitivity of subclinical KC detection. However, combining these morphological indices to wavefront and biomechanical analyses of the cornea will certainly further improve the sensitivity of the future screening tests.

How to cite this article
Smadja D. Topographic and Tomographic Indices for Detecting Keratoconus and Subclinical Keratoconus: A Systematic Review. Int J Kerat Ect Cor Dis 2013;2(2):60-64.
Breath Figure Arrays: Unconventional Fabrications, Functionalizations, and Applications
Authors: Bai Hua , Du Can , Zhang Aijuan , Li Lei 
Published: October 2013

AbstractA breath figure (BF) is the water droplet array that forms when moisture comes in contact with a cold substrate. This water droplet array has been widely utilized in the past two decades as a versatile soft template for the fabrication of polymeric porous films. Accordingly, the ordered pores on the polymer films formed with such a method are named a breath figure array (BFA).The BF templating technique is undergoing rapid development. Several unconventional BF processes have been established to prepare porous films with unique morphologies or primary materials, and various newly developed functionalization techniques have significantly improved the performance of polymeric films with BFA, leading to novel applications, including templates, biosensors, and separation membranes. These recent achievements will be described in this Minireview.
Promotion of Förster Resonance Energy Transfer in a Saponite Clay Containing Luminescent Polyhedral Oligomeric Silsesquioxane and Rhodamine Dye
Authors: Olivero Francesco , Carniato Fabio , Bisio Chiara , Marchese Leonardo 
Published: October 2013

AbstractA new hybrid photostable saponite clay with embedded donor–acceptor dyes was prepared and characterized in this work. The saponite is intercalated with a luminescent polyhedral oligomeric silsesquioxane, which transfers the photoexcitation energy directly to an acceptor dye (rhodamine B). The obtained composite material was characterized by means of XRD, TEM microscopy, and UV/Vis and photoluminescence spectroscopy. A physicochemical study showed that the system behaved as an efficient Förster resonance energy transfer pair, owing to the very good spectral overlap of donor emission (λem=510–540 nm) and acceptor absorption in the λ=530–570 nm range. The hybrid material represents the first example of a photonic antenna based on a synthetic saponite clay and can be considered a step forward in the search for new, efficient, and stable materials suitable for light‐harvesting applications.
Palladium‐Catalyzed Cross‐Dehydrogenative Functionalization of C(sp2)H Bonds
Authors: Wu Yinuo , Wang Jun , Mao Fei , Kwong Fuk Yee 
Published: October 2013

AbstractThe catalytic cross‐dehydrogenative coupling (CDC) reaction has received intense attention in recent years. The attractive feature of this coupling process is the formation of a CC bond from two CH moieties under oxidative conditions. In this Focus Review, recent advances in the palladium‐catalyzed CDC reactions of C(sp2)H bond are summarized, with a focus on the period from 2011 to early 2013.