bluuebunny/crossref_metadata_2025 huggingface dataset:
Ekman’s Paradox and a Naturalistic Strategy to Escape From It
Authors: Vallverdú Jordi
Published: December 2013

The purposes of this paper are two: first of all, to show that blind-following of a oversimplistic model of emotions like happens with Ekman’s one is a bad situation for contemporary researchers from different disciplines. The author has called this situation, the Ekman’s paradox; at the same time, the complexity and divergence of ideas, concepts, methodologies and evidences among emotion researchers makes difficult to obtain the necessary agreement to facilitate future researches. Consequently, and this is the second purpose of this text is to define an unique and very specific emotion, pain, as a fulcrum from which to start to define a clear map of emotions. Pain has been chosen due to its specific and unique hardwired body mechanisms as well as a universal agreement among experts about its primordiality. Changing a word to make this explicit, one can have a new start point for the understanding of emotions: dolet, ergo sum.
Robot Pain
Authors: van Rysewyk Simon
Published: December 2013

Functionalism of robot pain claims that what is definitive of robot pain is functional role, defined as the causal relations pain has to noxious stimuli, behavior and other subjective states. Here, the author proposes that the only way to theorize role-functionalism of robot pain is in terms of type-identity theory. The author argues that what makes a state pain for a neuro-robot at a time is the functional role it has in the robot at the time, and this state is type identical to a specific circuit state. Support from an experimental study shows that if the neural network that controls a robot includes a specific 'emotion circuit', physical damage to the robot will cause the disposition to avoid movement, thereby enhancing fitness, compared to robots without the circuit. Thus, pain for a robot at a time is type identical to a specific circuit state.
The Compilation and Validation of a Collection of Emotional Expression Images Communicated by Synthetic and Human Faces
Authors: Lawrence Louise , Abdel Nabi Deborah
Published: December 2013

The BARTA (Bolton Affect Recognition Tri-Stimulus Approach) is a unique database comprising over 400 colour images of the universally recognised basic emotional expressions and is the first compilation to include three different classes of validated face stimuli; emoticon, computer-generated cartoon and photographs of human faces. The validated tri-stimulus collection (all images received =70% inter-rater (child and adult) consensus) has been developed to promote pioneering research into the differential effects of synthetic emotion representation on atypical emotion perception, processing and recognition in autism spectrum disorders (ASD) and, given the recent evidence for an ASD synthetic-face processing advantage (Rosset et al., 2008), provides a means of investigating the benefits associated with the recruitment of synthetic face images in ASD emotion recognition training contexts.
Professional Online Profiles
Authors: Bayerl P. Saskia , Janneck Monique
Published: December 2013

Online profiles are becoming increasingly important in work contexts from recruiting to termination decisions. The authors conducted two experiments to investigate the effect of profile layout on professional impression formation. Presence or absence of photos had no impact on overall rating or likability, but interacted with profile gender. Male profiles were rated best with photo, female profiles without photo (Study 1, n=264). Placeholders providing only gender cues led to similarly low ratings for male and female profiles (Study 2, n=202). The authors’ findings indicate that visual gender cues have a considerable biasing effect for online impression formation, particularly for women. This study extends our understanding of the gendered nature of professional online settings with implications for HR professionals and organizations as well as users managing their attractiveness on the job markets.
Does the Playing Field Determine the Game?
Authors: Staar Henning , Janneck Monique , Metzger Frederik , Berwing Stefan , Armbrüster Thomas
Published: December 2013

Virtual networks are often characterized as having less formal and hierarchical structures compared to traditional intra-organizational contexts. Instead, informal actions and so-called political behaviour of individual members play an important role regarding power and decision-making. In the present paper the authors investigate the relation between structural characteristics of virtual networks and informal influence tactics of network members. Results show that there are indeed numerous relations between the ‘playing field’ provided by the network structure and the behaviour of individual network players. Surprisingly, an increase of formalization, e.g. through the use of agreements, fixed principles and rules or even contracts, did not constrain informal political behavior. On the contrary, higher formalization was comprehensively associated with higher use of micro-political tactics. In addition, the use of all tested influence tactics showed to be positively related to network outcomes in terms of product, process and service innovation on a moderate level. Overall, these first insights into the interplay between network structures and informal influence behavior suggest that the approach to restrict micro-politics through stronger structuring might not only be ineffective but possibly misconceives the potential of micro-politics for collective goals in virtual collaborations. Despite the fact that this was an exploratory study, the results strongly argue for a deeper investigation on how virtual networks could benefit from micro-political actions.
Social Media Business Intelligence
Authors: Bell David , Shirzad Sara Robaty
Published: December 2013

Social media tools are increasingly used for relationships management among marketplace actors (e.g. organisations, suppliers and individuals). As markets become ever more global and dynamic, new entrants find themselves struggling to fully understand the marketplace, companies operating with it and changes that occur. The authors discuss Social Media Network (SMN) tools and outline a methodology and procedure that supports the identification of domain specific networks within particular global business-to-business environments. Research is carried out using SMN data about firms in the pharmaceutical industry. The authors use their own methodology to uncover market participants, linkages and prominent issues that may help new firms to position themselves effectively within a new marketplace. SMNs provide a sizable source of information and new approaches are required to fully leverage their considerable value. This paper explores how SMNs can be used as an effective source of business intelligence by utilising two popular SMN platforms.
Semantic Characterization of Tweets Using Topic Models
Authors: García-Silva Andrés , Rodríguez-Doncel Víctor , Corch Oscar
Published: December 2013

In the entertainment domain users tweet about their expectations and opinions regarding upcoming, current and past experiences, while companies advertise and promote the shows. This characterization, important for customers and companies, goes beyond traditional sentiment analysis where the polarity of the sentiments expressed in opinions is usually identified as positive, negative or neutral. The authors investigate different tweet representation models, including bags of words and probabilistic topic models, to shed light on the semantics of the messages. Their experiments show that topic-based models generated with Latent Dirichlet Allocation (LDA) yield, most of the times, better categorizations when compared to TF-IDF based features, particularly when these models are enriched with natural language features and specific Twitter slang.
Crowdsourced Knowledge Acquisition
Authors: Sabou Marta , Scharl Arno , Föls Michael
Published: December 2013

Novel social media collaboration platforms, such as games with a purpose and mechanised labour marketplaces, are increasingly used for enlisting large populations of non-experts in crowdsourced knowledge acquisition processes. Climate Quiz uses this paradigm for acquiring environmental domain knowledge from non-experts. The game’s usage statistics and the quality of the produced data show that Climate Quiz has managed to attract a large number of players but noisy input data and task complexity led to low player engagement and suboptimal task throughput and data quality. To address these limitations, the authors propose embedding the game into a hybrid-genre workflow, which supplements the game with a set of tasks outsourced to micro-workers, thus leveraging the complementary nature of games with a purpose and mechanised labour platforms. Experimental evaluations suggest that such workflows are feasible and have positive effects on the game’s enjoyment level and the quality of its output.
“Katie’s Swiss Trip”
Authors: Andrews Pierre , Paniagua Javier , Torsi Silvia
Published: December 2013

There is currently a trend in media management and the semantic web to develop new media processing methods and knowledge representation techniques to organize and structure media collections around events. While this increased interest for events as the central aggregator of media is supported by strong research in the fields of knowledge representation and computer vision; it is not yet clear how the digital era users use events when sharing their personal media collections. In this article, the authors first analyze and discuss a survey on photo-taking behavior and then explore a dataset of publicly available online albums to find out how users share photos. Based on the results of these studies, the authors show that, while media sharing services do not support events as yet, users still share their media around personal events, either by providing explicit spatio-temporal metadata in free text form, or by using an event-centric vocabulary when titling their collections of photos.
Discovering and Characterizing Places of Interest Using Flickr and Twitter
Authors: Van Canneyt Steven , Schockaert Steven , Dhoedt Bart
Published: December 2013

Databases of places have become increasingly popular to identify places of a given type that are close to a user-specified location. As it is important for these systems to use an up-to-date database with a broad coverage, there is a need for techniques that are capable of expanding place databases in an automated way. In this paper the authors discuss how geographically annotated information obtained from social media can be used to discover new places. In particular, the authors first determine potential places of interest by clustering the locations where Flickr photos have been taken. The tags from the Flickr photos and the terms of the Twitter messages posted in the vicinity of the obtained candidate places of interest are then used to rank them based on the likelihood that they belong to a given type. For several place types, their methodology finds places that are not yet contained in the databases used by Foursquare, Google, LinkedGeoData and Geonames. Furthermore, the authors’ experimental results show that the proposed method can successfully identify errors in existing place databases such as Foursquare.
Improving Wiki Article Quality Through Crowd Coordination
Authors: Lykourentzou Ioanna , Vergados Dimitrios J. , Naudet Yannick
Published: December 2013

In this paper the authors propose a crowd coordination mechanism to increase the quality of articles produced in wiki systems. Wikis constitute promising social digital ecosystems for collaborative knowledge creation on the Web. However, as a result of the purely self-coordinated manner that they function, they cannot ensure the quality of the produced articles - an issue that affects their reliability and acceptance. The authors show that wiki article quality optimization can be formulated as a resource allocation problem. Contributors are selected from the wiki community crowd according to their skills, and matched to the articles they can improve the most. A model of the English Wikipedia is given, parameterized and validated from recent field studies results. Experimental results were obtained with simulation systems implementing this model and on a series of scenarios, which include an analysis of the impact of using semantic relations between wiki domains. The obtained results indicate that the proposed mechanism can lead to the production of wiki articles of higher quality, compared to the respective results achieved by the fully self-coordinated wiki.
Computer Physician Order Entry (CPOE)
Authors: Coustasse Alberto , Shaffer Joseph , Conley David , Coliflower Julia , Deslich Stacie , Sikula Andrew
Published: December 2013

In an effort to reduce Adverse Drug Events (ADEs) and to improve patient safety, funding has been earmarked to improve the rate of adoption of Computerized Physician Order Entry (CPOE) among healthcare providers. It has been shown that the ordering stage of medications is where most medication errors and preventable ADEs occur. The purpose of this study was to examine the implementation CPOE systems in hospitals to determine benefits and concerns of this technology in the United States healthcare system. A review of the literature published in the last 13 years (since 2000) in the English language was performed to complete this investigation. CPOE has emerged as a valuable tool to improve medical efficiency and to decrease medication errors and ADEs. Efficiencies were found to reduce the overall workload of nurses, clerical workers and pharmacists. CPOE has proven to be a secure way of transferring physician orders electronically thus helping hospitals and physicians practice a more effective and better quality of care with less medical errors which has led to decreased operating expenses. While barriers such as lack of professional buy in, and cost of implementation have hindered the widespread use and growth of CPOE systems, these barriers are being overcome with the financial incentives from the HITECH Act, and with the increased savings of CPOE implementation, which may motivate more healthcare systems to adopt CPOE.
Study and Modeling of an Underwater Cleaning Robot
Authors: Junior Lafaete Creomar Lima , Filho Armando Carlos de Pina , Carlos de Pina Aloísio
Published: December 2013

The development of new technologies in urban automation has increasingly intensified in recent decades. Among the research initiatives, there is the study and design of service robots for home tasks, such as: cleaning floors, windows, and pools. The technology used in these robots depends on specific resources and great investments, and consequently, the price is expensive, restricting the use for people with high purchasing power. Thus, it is important to study means to manufacture robots with better cost-benefit, looking for to develop mechanisms that can reduce the production costs, and then a greater number of people can use such technology. Therefore, the objective of this work is to develop an underwater cleaning robot, which can be used for cleaning pools. Several aspects of the project, a model created by means of computational methods, and some analyses of the robot structure will be presented.
Distributed Cooperative Localization
Authors: Panzieri Stefano , Pascucci Federica , Sciavicco Lorenzo , Setola Roberto
Published: December 2013

Localization for mobile platforms, in indoor scenarios, represents a cornerstone achievement to effective develop service and field robots able to safely cooperate. This paper proposes a methodology to achieve such a result by applying a completely decentralized and distributed algorithm. The key idea of the solution developed is to enable a dynamic correction of the position estimate, computed by robots, through information, shared during random rendezvous. This objective is reached using a specific extension of the Extended Kalman Filter, called Interlaced Extended Kalman Filter, which allows exchanging the estimation performed by any single robot together with the corresponding uncertainties. The proposed unsupervised method provides a large flexibility: it facilitates the handling of heterogeneous proprioceptive and exteroceptive sensors, that can be merged taking into account both their accuracy and the system model one. The solution is particularly interesting for rescue scenario, since it is able to cope with irregular communication signals and loss of connectivity among robots team without requiring any synchronization.
Experiences and Attitudes of Collegiate Athletic Trainers Regarding Alcohol-Related Unintentional Injury in Athletes
Authors: Brenner James W. , Metz Stacie M. , Entriken Jack , Brenner Christina J.
Published: December 2013

Context:

Alcohol-related unintentional injury (ARUI) has been an unexamined consequence of alcohol consumption by collegiate athletes. It has a potentially devastating effect on their athletic performances and careers. Awareness of this problem in athletes could have a huge effect on what athletic trainers (ATs) do to recognize, treat, and prevent it in a collegiate athlete population.

Objective:

To examine the experiences and attitudes among collegiate and university ATs about ARUI in the athletes in their care.

Design:

Cross-sectional study.

Setting:

Web-based survey.

Patients or Other Participants:

A total of 1767 e-mail addresses for collegiate and university ATs within National Athletic Trainers' Association Districts 1, 2, 3, and 9.

Main Outcome Measure(s):

We calculated frequencies, percentages, and attitudes of ATs regarding ARUI in collegiate athletes during the 2010–2011 academic year.

Results:

The resulting sample size for the analysis was 459 (26.0%) participants of the initial total sample. More than 56% (n = 260) of the ATs reported that they had evaluated, treated, or referred if needed at least 1 ARUI in a collegiate athlete. On average, these ATs had evaluated, treated, or referred if needed 3 alcohol-related unintentional injuries within the 2010–2011academic year. About 73% (n = 331) of ATs agreed that ARUI is a serious problem. Nearly 80% (n = 358) indicated they believe ATs should receive more training to identify student–athletes with alcohol-related problems.

Conclusions:

Alcohol-related unintentional injury is a common and serious consequence of alcohol use among collegiate athletes. Many ATs also view it as a serious problem yet would like more training in how to address it. Alcohol-related unintentional injury may have important negative effects on the careers and athletic performances of athletes. Researchers need to determine how prevalent ARUI is in the collegiate athlete population and what ATs can do to address it.
Postural-Stability Tests That Identify Individuals With Chronic Ankle Instability
Authors: Linens Shelley W. , Ross Scott E. , Arnold Brent L. , Gayle Richard , Pidcoe Peter
Published: December 2013

Context:

Chronic ankle instability (CAI) is characterized by repeated ankle sprains, which have been linked to postural instability. Therefore, it is important for clinicians to identify individuals with CAI who can benefit from rehabilitation.

Objective:

To assess the likelihood that CAI participants will exhibit impaired postural stability and that healthy control participants will exhibit better test performance values.

Design:

Case-control study.

Setting:

Laboratory.

Patients or Other Participants:

People with CAI (n = 17, age = 23 ± 4 years, height = 168 ± 9 cm, weight = 68 ± 12 kg) who reported ankle “giving-way” sensations and healthy volunteers (n = 17, age = 23 ± 3 years, height = 168 ± 8 cm, weight = 66 ± 12 kg).

Intervention(s):

Participants performed 7 balance tests: Balance Error Scoring System (BESS), time in balance, foot lift, single-legged stance on a force plate, Star Excursion Balance Test, side hop, and figure-of-8 hop.

Main Outcome Measure(s):

Balance was quantified with errors (score) for the BESS, length of time balancing (seconds) for time-in-balance test, frequency of foot lifts (score) for foot-lift test, velocity (cm/s) for all center-of-pressure velocity measures, excursion (cm) for center-of-pressure excursion measures, area (cm2) for 95% confidence ellipse center-of-pressure area and center-of-pressure rectangular area, time (seconds) for anterior-posterior and medial-lateral time-to-boundary (TTB) measures, distance reached (cm) for Star Excursion Balance Test, and time (seconds) to complete side-hop and figure-of-8 hop tests. We calculated area-under-the-curve values and cutoff scores and used the odds ratio to determine if those with and without CAI could be distinguished using cutoff scores.

Results:

We found significant area-under-the-curve values for 4 static noninstrumented measures, 3 force-plate measures, and 3 functional measures. Significant cutoff scores were noted for the time-in-balance test (≤25.89 seconds), foot-lift test (≥5), single-legged stance on the firm surface (≥3 errors) and total (≥14 errors) on the BESS, center-of-pressure resultant velocity (≥1.56 cm/s), standard deviations for medial-lateral (≤1.56 seconds) time-to-boundary and anterior-posterior (≤3.78 seconds) time-to-boundary test, posteromedial direction on the Star Excursion Balance Test (≤0.91), side-hop test (≥12.88 seconds), and figure-of-8 hop test (≥17.36 seconds).

Conclusions:

Clinicians can use any of the 10 significant measures with their associated cutoff scores to identify those who could benefit from rehabilitation that reestablishes postural stability.
Cervical Spine Motion During Football Equipment-Removal Protocols: A Challenge to the All-or-Nothing Endeavor
Authors: Jacobson Bradley , Cendoma Michael , Gdovin Jacob , Cooney Kevin , Bruening Dustin
Published: December 2013

Context

The National Athletic Trainers' Association position statement on acute management of the cervical spine-injured athlete recommended the all-or-nothing endeavor, which involves removing or not removing both helmet and shoulder pads, from equipment-laden American football and ice hockey athletes. However, in supporting research, investigators have not considered alternative protocols.

Objective

To measure cervical spine movement (head relative to sternum) produced when certified athletic trainers (ATs) use the all-or-nothing endeavor and to compare these findings with the movement produced using an alternative pack-and-fill protocol, which involves packing the area under and around the cervical neck and head with rolled towels.

Design

Crossover study.

Setting

Movement analysis laboratory.

Patients or Other Participants

Eight male collegiate football players (age = 21.4 ± 1.4 years; height = 1.87 ± 0.02 m; mass = 103.6 ± 12.5 kg).

Intervention(s)

Four ATs removed equipment under 4 conditions: removal of helmet only followed by placing the head on the ground (H), removal of the helmet only followed by pack-and-fill (HP), removal of the helmet and shoulder pads followed by placing the head on the ground (HS), and removal of the helmet and shoulder pads followed by pack-and-fill (HSP). Motion capture was used to track the movement of the head with respect to the sternum during equipment removal.

Main Outcome Measure(s)

We measured head movement relative to sternum movement (translations and rotations). We used 4 × 4 analyses of variance with repeated measures to compare discrete motion variables (changes in position and total excursions) among protocols and ATs.

Results

Protocol HP resulted in a 0.1 ± 0.6 cm rise in head position compared with a 1.4 ± 0.3 cm drop with protocol HS (P < .001). Protocol HP produced 4.9° less total angular excursion (P < .001) and 2.1 cm less total vertical excursion (P < .001) than protocol HS.

Conclusions

The pack-and-fill protocol was more effective than shoulder pad removal in minimizing cervical spine movement throughout the equipment-removal process. This study provides evidence for including the pack-and-fill protocol in future treatment recommendations when helmet removal is necessary for on-field care.
The Persistent Influence of Concussive Injuries on Cognitive Control and Neuroelectric Function
Authors: Moore Robert D. , Hillman Charles H. , Broglio Steven P.
Published: December 2013

Context:

Increasing attention is being paid to the deleterious effects of sport-related concussion on cognitive and brain health.

Objective:

To evaluate the influence of concussion incurred during early life on the cognitive control and neuroelectric function of young adults.

Design:

Cross-sectional study.

Setting:

Research laboratory.

Patients or Other Participants:

Forty young adults were separated into groups according to concussive history (0 or 1+). Participants incurred all injuries during sport and recreation before the age of 18 years and were an average of 7.1 ± 4.0 years from injury at the time of the study.

Intervention(s):

All participants completed a 3-stimulus oddball task, a numeric switch task, and a modified flanker task during which event-related potentials and behavioral measures were collected.

Main Outcome Measure(s):

Reaction time, response accuracy, and electroencephalographic activity.

Results:

Compared with control participants, the concussion group exhibited decreased P3 amplitude during target detection within the oddball task and during the heterogeneous condition of the switch task. The concussion group also displayed increased N2 amplitude during the heterogeneous version of the switch task. Concussion history was associated with response accuracy during the flanker task.

Conclusions:

People with a history of concussion may demonstrate persistent decrements in neurocognitive function, as evidenced by decreased response accuracy, deficits in the allocation of attentional resources, and increased stimulus-response conflict during tasks requiring variable amounts of cognitive control. Neuroelectric measures of cognitive control may be uniquely sensitive to the persistent and selective decrements of concussion.
Sport-Related Concussion and Sensory Function in Young Adults
Authors: Moore Robert D. , Broglio Steven P. , Hillman Charles H.
Published: December 2013

Context:

The long-term implications of concussive injuries for brain and cognitive health represent a growing concern in the public consciousness. As such, identifying measures sensitive to the subtle yet persistent effects of concussive injuries is warranted.

Objective:

To investigate how concussion sustained early in life influences visual processing in young adults. We predicted that young adults with a history of concussion would show decreased sensory processing, as noted by a reduction in P1 event-related potential component amplitude.

Design:

Cross-sectional study.

Setting:

Research laboratory.

Patients or Other Participants:

Thirty-six adults (18 with a history of concussion, 18 controls) between the ages of 20 and 28 years completed a pattern-reversal visual evoked potential task while event-related potentials were recorded.

Main Outcome Measure(s):

The groups did not differ in any demographic variables (all P values > .05), yet those with a concussive history exhibited reduced P1 amplitude compared with the control participants (P = .05).

Conclusions:

These results suggest that concussion history has a negative effect on visual processing in young adults. Further, upper-level neurocognitive deficits associated with concussion may, in part, result from less efficient downstream sensory capture.
Incidence of Injury Among Male Brazilian Jiujitsu Fighters at the World Jiu-Jitsu No-Gi Championship 2009
Authors: Kreiswirth Ethan M. , Myer Gregory D. , Rauh Mitchell J.
Published: December 2013

Context:

Brazilian jiujitsu is a modern combat martial art that uses joint locks to submit an opponent and achieve victory. This form of martial art is a relatively young but rapidly growing combat sport worldwide.

Objective:

To determine the cumulative injury incidence and risk of injury by belt rank and body region at an international-level Brazilian jiujitsu tournament.

Design:

Descriptive epidemiology study.

Setting:

World Jiu-Jitsu No-Gi Championship 2009 in Long Beach, California.

Patients or Other Participants:

We monitored 951 athletes (age range, 18–50 years) enrolled to compete in the World Jiu-Jitsu No-Gi Championship 2009.

Intervention(s):

Fighters were categorized by belt level for group comparisons (belt experience). Incidence rates per 1000 athlete-exposures (AEs) and incidence rate ratios were compared by belt rank.

Main Outcome Measure(s):

Incidence rates and incidence rate ratios.

Results:

During the tournament, 1606 AEs and 62 total injuries were reported. Of these injuries, 40 affected the joints, for an overall incidence rate of 24.9 per 1000 AEs. The joint incidence rate by belt rank was 21.5 per 1000 AEs for blue, 21.3 per 1000 AEs for purple, 25.2 per 1000 AEs for brown, and 35.1 per 1000 AEs for black. We found no differences for incidence rate ratios of joint injury among individual belt groups (P > .05). More experienced (brown belt and black belt) competitors had a higher injury risk than the less experienced (blue belt and purple belt) competitors; however, the difference was not significant (incidence rate ratio = 1.65, 95% confidence interval = 0.9, 2.9; P = .06). The incidence of joint injury was highest at the knee (7.5 per 1000 AEs) and elbow (7.5 per 1000 AEs).

Conclusions:

The data from this international Brazilian jiujitsu tournament indicated that the risk of joint injury was similar among belt ranks or experience during this Brazilian jiujitsu competition. The knee and elbow were the joints most susceptible to injury. Future investigation of injury mechanism is warranted to develop strategies to reduce potential risk factors attributed to injury.
Selection Criteria for Patients With Chronic Ankle Instability in Controlled Research: A Position Statement of the International Ankle Consortium
Authors: Gribble Phillip A. , Delahunt Eamonn , Bleakley Christopher M. , Caulfield Brian , Docherty Carrie L. , Fong Daniel Tik-Pui , Fourchet François , Hertel Jay , Hiller Claire E. , Kaminski Thomas W. , McKeon Patrick O. , Refshauge Kathryn M. , van der Wees Philip , Vicenzino William , Wikstrom Erik A.
Published: December 2013

While research on chronic ankle instability (CAI) and awareness of its impact on society and health care systems has grown substantially in the last 2 decades, the inconsistency in participant or patient selection criteria across studies presents a potential obstacle to addressing the problem properly. This major gap within the literature limits the ability to generalize this evidence to the target patient population. Therefore, there is a need to provide standards for patient or participant selection criteria in research focused on CAI with justifications using the best available evidence. The International Ankle Consortium provides this position paper to present and discuss an endorsed set of selection criteria for patients with CAI based on the best available evidence to be used in future research and study designs. These recommendations will enhance the validity of research conducted in this clinical population with the end goal of bringing the research evidence to the clinician and patient.
Regularity for elliptic pairs over $\mathbb C [[\hbar ]]$
Authors: Raimundo David
Published: December 2013

We extend the results of Schapira and Schneiders [12] on relative regularity, finiteness and duality (in the smooth case) of elliptic pairs to the framework of

\mathcal D [[\hbar ]]

-modules and constructible sheaves of

\mathbb C [[\hbar ]]

-modules.
Hopf $\pi$-Crossed Biproduct and Related Coquasitriangular Structures
Authors: Ma Tianshui , Song Yanan
Published: December 2013

Let

{\pi}

be a group and

H=(\{H_{\alpha }\}, \Delta, \varepsilon, S)

a Hopf

{\pi}

-coalgebra (not nec essarily associative),

\alpha \in {\pi}

. Let

A

be an algebra and a coalgebra. We find the necessary and sufficient conditions on the

{\pi}

-crossed product

A\#^{{\pi} }_{\sigma } H

with suitable comultiplication and counit to be a Hopf

{\pi}

-coalgebra. Moreover, the necessary and sufficient conditions for a Hopf

{\pi}

-crossed product

A\natural _{\sigma }^{{\pi} } H

to be a coquasitriangular Hopf

{\pi}

-coalgebra are given. In this case the category

{}^{A\natural _\sigma ^{\pi} H}{\mathcal M}

of the left

{\pi}

-comodules over

A\natural _\sigma ^{\pi} H

is a braided monoidal category.
On the Jump set of Solutions of the Total Variation Flow
Authors: Caselles Vicent , Jalalzai Khalid , Novaga Matteo
Published: December 2013

We show that the jump set of the solution of the minimizing Total Variation flow decreases with time for any initial condition in

BV({\Omega} )\cap L^N({\Omega} )

. We prove that the size of the jump also decreases with time.
Hölder Continuity for Sub-Elliptic Systems Under the Sub-Quadratic Controllable Growth in Carnot Groups
Authors: Wang Jialin , Liao Dongni , Yu Zefeng
Published: December 2013

This paper is devoted to optimal partial regularity of weak solutions to nonlinear sub-elliptic systems for the case

1<m<2

under the controllable growth condition in Carnot groups. We begin with establishing a Sobolev-Poincaré type inequality for the function

u\in HW^{1,m}(\Omega),\mathbb {R}^{N})

with

m\in (1,2)

, and then partial regularity with optimal local Hölder exponent for horizontal gradients of weak solutions to the systems is established by using

{\mathcal A}

-harmonic approximation technique.
On a Divisibility Problem
Authors: Alzer Horst , Sándor József
Published: December 2013

We prove that there are no integers

n\geq 2

and

k\geq 2

such that

n^k

divides

{\varphi} (n^k)+{\sigma} _k(n)

. For

k=2

this settles a conjecture of Adiga and Ramaswamy.
Agenda setting en medios ecuatorianos. Diarios El Universo, El Mercurio, El Comercio y El Telégrafo
Authors: Rivera Rogel Diana , Punin Larrea María Isabel , Calva Cabrera Daniela
Published: December 2013

Tomando como base fundamental los conceptos de la agenda setting el estudio busca conocer la línea que siguen los cuatro medios de comunicación de Ecuador (El Universo, El Telégrafo, El Comercio y El Mercurio) para el establecimiento cotidiano de sus temarios periodísticos. Metodología. Se trabajó con el análisis de contenido a través de una semana compuesta entre el 16 de abril al 18 de mayo de 2012, usando como instrumento una ficha de investigación que comprende nueve apartados. Resultados. Se destacan las entidades públicas como los principales motores de la información; las rutinas productivas cotidianas de los medios resultan favorecedoras frente al periodismo de investigación; y las noticias breves tienen mayor número de publicaciones en dichos periódicos objeto de estudio. Discusión. La falta de periodismo de investigación es notoria en los casos de estudio. Los periodistas prefieren hacer rutinas cotidianas en especial con organismos o entidades públicas en donde permanentemente encuentran hechos noticiosos. Conclusiones. Los medios de comunicación están constantemente monitoreados para conocer la importancia que le brindan a la labor periodística. Las empresas informativas suelen moverse atendiendo a determinados intereses de grupos específicos.
Recommendations for diagnostic and therapeutic procedures in systemic onset juvenile idiopathic arthritis. The opinion of the Panel of Experts of the National Consultant in the field of rheumatology
Authors: Żuber Zbigniew , Rutkowska-Sak Lidia , Smolewska Elżbieta , Korobowicz-Markiewicz Agnieszka , Kobusińska Katarzyna , Dobrzyniecka Bogna , Klimecka Iwona , Tłustochowicz Witold
Published: December 2013

Układowa postać (o uogólnionym początku) młodzieńczego idiopatycznego zapalenia stawów (MIZS) występuje u 10% ogółu chorych na MIZS, charakteryzuje się hektycznymi gorączkami, typowymi wysypkami (rash), objawami układowymi, zapaleniem stawów oraz wysokimi wskaźnikami stanu zapalnego. Niektórzy chorzy z układową postacią MIZS źle odpowiadają na zastosowane standardowe leczenie, w tym leczenie biologiczne preparatami blokującymi czynnik martwicy nowotworów (tumor necrosis factor – TNF).

Efektywność terapii zależy od szybkiego wdrożenia właściwego postępowania. Leczenie inhibitorami interleukiny 1 i 6 (IL-1 i IL-6) jest skuteczną alternatywą terapeutyczną w przypadkach opornych na standardowe leczenie.
Characteristics of Polish patients with systemic lupus erythematosus obtained from SESAME registry. Activity of the disease, degree of impairment, and availability of social care
Authors: Leszczyński Piotr , Majdan Maria , J. Kucharz Eugeniusz , Sierakowski Stanisław , Wiland Piotr , Kisiel Bartłomiej , Dziurda Dominik , Giemza Tomasz
Published: December 2013

Cel pracy: Charakterystyka grupy polskich chorych na toczeń rumieniowaty układowy (TRU). W opracowaniu skupiono się na charakterystyce społeczno-demograficznej tej grupy, obrazie klinicznym w chwili zakwalifikowania do badania oraz dostępie do pomocy społecznej.

Materiał i metody: Badaniem objęto 269 kolejnych pacjentów z sześciu polskich ośrodków reumatologicznych: w Białymstoku, Katowicach, Lublinie, Poznaniu, Warszawie i Wrocławiu, zakwalifikowanych do międzynarodowego wieloośrodkowego badania SESAME, dotyczącego epidemiologii TRU w trzech krajach Europy Środkowej: w Rumunii, Polsce i na Węgrzech.

Wyniki: Wśród uczestników badania przeważały kobiety (n = 234; 87%). Zaledwie 28,6% chorych na TRU było zatrudnionych w pełnym wymiarze czasu pracy, a ok. 1/3 pobierała rentę zdrowotną. W badanej próbie znalazło się 12% chorych z SELENA SLEDAI score wynoszącym co najmniej 6 pkt, u których stwierdzono zmniejszone stężenie dopełniacza oraz obecność przeciwciał przeciw natywnemu DNA. U pacjentów, u których wartości SELENA SLEDAI score były wyższe niż 10 pkt (42%), istotnie częściej niż w pozostałych grupach stwierdzano aktywne zajęcie wszystkich układów i narządów uwzględnionych w ocenie SLE Activity Index, z wyjątkiem skóry i błon śluzowych. Zajęcie układu mięśniowo-szkieletowego znamiennie częściej dotyczyło chorych o wartościach SELENA SLEDAI score mieszczących się w zakresie od 6 do 10 pkt (30,5%). Zaobserwowano istotny związek pomiędzy wyższą aktywnością choroby a częstością występowania różnego stopnia niepełnosprawności oraz korzystaniem z pomocy pracownika socjalnego.

Wnioski: W populacji polskich chorych na TRU znajduje się grupa osób, które z uwagi na wysoką aktywność choroby potwierdzoną zarówno w badaniu klinicznym, jak i w badaniach laboratoryjnych wymagają intensyfikacji postępowania terapeutycznego. Wydaje się, że grupa ta może być identyfikowana na podstawie aktywności choroby określonej przy użyciu skali SELENA SLEDAI score. Znamiennie wyższą aktywnością choroby charakteryzują się również chorzy o znacznym stopniu niepełnosprawności. Nie można wykluczyć, że optymalna kontrola terapeutyczna aktywności TRU w tej grupie mogłaby przełożyć się na mniejsze zapotrzebowanie na świadczenia opieki społecznej oraz na poprawę jakości życia.
Imaging diagnostics of Sjögren’s syndrome
Authors: Włodkowska-Korytkowska Monika , Maślińska Maria , Saied Fadhil , Kwiatkowska Brygida , Prochorec-Sobieszek Monika , Sudoł-Szopińska Iwona
Published: December 2013

Zespół Sjögrena (ZS) jest przewlekłą chorobą zapalną tkanki łącznej o podłożu autoimmunologicznym. W jej przebiegu dochodzi do upośledzenia funkcji gruczołów wydzielania zewnętrznego, m.in. gruczołów ślinowych i łzowych, co prowadzi do rozwoju tzw. zespołu suchości (kserostomia i kseroftalmia). Obraz kliniczny choroby jest zróżnicowany, wobec czego kryteria klasyfikacyjne rozpoznania tej choroby ulegają modyfikacjom. Od 2002 r. obowiązywały kryteria klasyfikacyjne zaproponowane przez American-European Consensus Group (AECG), uwzględniające subiektywne objawy suchości i badania obiektywne potwierdzające zajęcie gruczołów wydzielania zewnętrznego, takie jak sialografia, sialometria, testy okulistyczne i badanie histopatologiczne gruczołów ślinowych mniejszych oraz obecności typowych dla ZS autoprzeciwciał (Ro/SS-B, La/SS-A). W zaproponowanych w 2012 r. kryteriach klasyfikacyjnych zrezygnowano z części badań obrazowych i testów oceniających wydzielanie gruczołów ślinowych na rzecz badań immunologicznych.

Celem pracy jest przedstawienie możliwości i ograniczeń stosowanych metod diagnostyki ZS ujętych w zaproponowanych i obowiązujących do 2012 r. kryteriach klasyfikacyjnych tego zespołu oraz możliwości zastosowania w praktyce klinicznej wielu badań obrazowych oceniających gruczoły ślinowe.
Juvenile dermatomyositis – analysis of the musculoskeletal system and proposed physiotherapy
Authors: Żuk Beata , Żuk-Drążyk Berenika , Księżopolska-Orłowska Krystyna , Stanicka Katarzyna
Published: December 2013

Młodzieńcze zapalenie skórno-mięśniowe jest rzadką chorobą autoimmunologiczną o nieustalonej etiologii zajmującą skórę, mięśnie i narządy wewnętrzne. Należy do grupy idiopatycznych zapalnych miopatii. W odróżnieniu od postaci występujących u dorosłych charakteryzuje się innym przebiegiem, np. występowaniem wapnicy w układzie szkieletowo-mięśniowym.

Fizjoterapia jest leczeniem uzupełniającym podstawowe leczenie farmakologiczne. Zastosowana już we wczesnym okresie choroby zapobiega hipokinezji. Poprzez profilaktykę przykurczów oraz mobilizację mięśni posturalnych umożliwia przywrócenie utraconych funkcji aparatu ruchu i wpływa na poprawę samopoczucia młodocianych. Ze względu na specyfikę choroby oraz jej rzadkie występowanie u dzieci i młodzieży na podstawie klinicznych obserwacji układu ruchu chorych w pracy podjęto próbę opisania charakterystycznych zaburzeń funkcji oraz przedstawiono propozycję usprawniania.
Heterotopic ossifications after two-stage septic revision knee arthroplasty in a rheumatoid arthritis patient
Authors: Wróblewski Robert , Pokrzywnicka-Gajek Ines , Kowalczewski Jacek
Published: December 2013

Autorzy przedstawili przypadek 68-letniej kobiety, chorej na reumatoidalne zapalenie stawów (RZS), która z powodu infekcji endoprotezy stawu kolanowego była leczona dwuetapowo: spacerem cementowym i realoplastyką stawu kolanowego. Z materiału śródoperacyjnego wyhodowano Staphylococcus aureus. Na radiogramach wykonanych w 3 miesiące po implantacji spacera na przedniej powierzchni kości udowej uwidoczniły się skostnienia okołostawowe. Po wygojeniu infekcji i unormowaniu się wskaźników zapalenia (białka C-reaktywnego, interleukiny 6 i OB) wykonano reimplantację. Skostnienia spowodowały istotne ograniczenie ruchomości stawu. Jest to pierwszy w praktyce klinicznej autorów przypadek chorej na RZS, u której wystąpiły masywne skostnienia okołostawowe po totalnej plastyce kolana (TPK). Realoplastyka TPK, szczególnie poprzedzona bakteryjnym zapaleniem S. aureus, jest obarczona zwiększonym ryzykiem powstania skostnień okołostawowych.
Administrative Council Meeting of the European Federation of Internal Medicine
Helsinki, May 9-11, 2013
Authors: J. Kucharz Eugeniusz
Published: December 2013

Nie dotyczy

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Analysis of selected factors, including vitamin D3 deficiency, affecting the quality of life of patients with rheumatoid arthritis
Authors: Raczkiewicz Anna , Kulig Maciej , Bachta Artur , Tłustochowicz Małgorzata , Tłustochowicz Witold
Published: December 2013

Cel pracy: Zbadanie jakości życia chorych na reumatoidalne zapalenie stawów (RZS) oraz określenie jej związku z wiekiem, czasem trwania, aktywnością i stopniem zaawansowania choroby oraz stężeniem witaminy D3 w surowicy.

Materiał i metody: Do badania zakwalifikowano kolejnych 119 chorych na RZS (107 kobiet i 12 mężczyzn w wieku 59,7 ±11,7 roku) leczonych w Klinice Chorób Wewnętrznych i Reumatologii WIM CSK MON, u których oznaczono stężenie witaminy D3 w surowicy. Chorzy wypełnili kwestionariusze: SF-36, skalę depresji Becka, HAQ, oraz określili w skali VAS stopień nasilenia bólu i zmęczenia. W badaniach laboratoryjnych oznaczono: morfologię krwi obwodowej, odczyn Biernackiego, stężenie kreatyniny, wapnia, fosforanów i 25-hydroksycholekalcyferolu w surowicy. Aktywność choroby określono według wskaźnika DAS28. W analizie statystycznej zastosowano metodę Statistica wersja 10.

Wyniki: Wskaźnik DAS28 korelował ujemnie z wynikami skali SF-36 i skali Becka. Chorzy z niedawno rozpoznanym RZS wykazywali gorsze wyniki w skali depresji i w podskalach SF-36 dotyczących wpływu emocji i bólu. Wiek chorych, czas trwania choroby, stopień uszkodzenia stawów oraz stężenie witaminy D3 w surowicy nie korelowały istotnie ze wskaźnikami jakości życia.

Wnioski: Reumatoidalne zapalenie stawów wywiera znaczący wpływ na jakość życia poprzez ból i upośledzenie fizyczne. Chorzy z niedawno rozpoznanym RZS częściej cierpią z powodu bólu i obniżonego nastroju niż chorzy przewlekle leczeni. Aktywność choroby wykazuje niewielki negatywny wpływ na jakość życia chorych na RZS. Konieczne są dalsze badania, aby określić znaczenie niedoboru witaminy D3 dla jakości życia tych chorych.
Progress in the treatment for osteoarthritis of the spine
Authors: Styczyński Tadeusz
Published: December 2013

Choroba zwyrodnieniowa kręgosłupa charakteryzuje się postępującym uszkodzeniem krążków międzykręgowych i chrząstki stawów międzywyrostkowych, co naraża na mikrourazy torebki stawowe i układ więzadłowy. Gojenie następuje poprzez miejscowy stan zapalny, a następnie rozwija się naprawczy rozrost tkanki kostnej. W przebiegu procesu zwyrodnieniowego dochodzi często do zaburzeń stabilności kręgosłupa, powstawania przepuklin krążków międzykręgowych lub do stenozy kanału kręgowego, co może spowodować uszkodzenie układu nerwowego. Oprócz bólów stawowych receptorowych pojawiają się wówczas bóle korzeniowe, neuropatyczne lub bóle typu neurogennego chromania przestankowego. Obraz kliniczny oprócz przewlekających się bólów kształtują powikłania neurologiczne w postaci niedowładów kończyn, zaburzeń czucia i zwieraczy pęcherza moczowego lub odbytu. W pracy omówiono postępy w leczeniu bólu, uwzględniając uwarunkowania psychosocjalne chorego, oraz postępy chirurgicznego leczenia powikłań choroby zwyrodnieniowej kręgosłupa. Ponieważ samej choroby zwyrodnieniowej usunąć się nie da, sukcesem będzie sprowadzenie jej do postaci niemej klinicznie.
Osteomalacia in 41-year-old female patient in the course of severe vitamin D deficiency and secondary hyperparathyroidism
Authors: Zwolakiewicz Adela , Sulencka-Kaatz Anna , Orłowicz Maja , Jeka Sławomir
Published: December 2013

Osteomalacja jest metaboliczną chorobą kości, która polega na niedostatecznej mineralizacji organicznej macierzy kostnej u osób dorosłych. Najczęstszą przyczyną osteomalacji jest niedobór witaminy D. Zgłaszanymi objawami choroby są: rozlane bóle kości, męczliwość i osłabienie mięśni. W wynikach badań laboratoryjnych stwierdza się zmniejszenie stężenia wapnia i fosforanów nieorganicznych w surowicy, wzrost aktywności fosfatazy alkalicznej, zmniejszenie wydalania wapnia z moczem, zmniejszenie stężenia witaminy D w surowicy. W niniejszej pracy przedstawiono przypadek osteomalacji u 41-letniej chorej w przebiegu ciężkiego niedoboru witaminy D, z charakterystycznymi objawami klinicznymi i wskaźnikami laboratoryjnymi. Nasilenie dolegliwości i niejednoznaczne opisy badań obrazowych układu kostnego ukierunkowały diagnostykę różnicową uwzględniającą choroby nowotworowe. W artykule wskazano, jak ważne w diagnostyce i wyleczeniu pacjentki okazało się oznaczenie poziomu witaminy D oraz jej suplementacja razem z preparatami wapnia.