bluuebunny/crossref_metadata_2025 huggingface dataset:
Sexbots : nos prochains partenaires
Authors: Mackenzie Robin
Published: May 2015

Le statut éthico-juridique des robots dotés de sensibilité est encore incertain, mais exige d’être pensé sans tarder. Si les économies d’échelle et les avantages sanitaires conduisent à une convergence des industries du soin et du sexe, les « sexbots » sont susceptibles d’attirer une stigmatisation qui accroîtra leur risque de maltraitance. Cet article soutient qu’il est éthiquement problématique pour les humains de créer des êtres sensibles, fabriqués à des fins utilitaires pour opérer des tâches que nous préférerions ne pas avoir à accomplir, comme prendre soin des personnes âgées et des infirmes, ou comme fournir des services sexuels. Il convient de mettre en place des régimes de protection juridique appropriés à ces nouveaux problèmes.
Le robot qui vous veut du bien
Authors: Cassou-Noguès Pierre
Published: May 2015

Cet article étudie deux robots en particulier NAO, développé par Aldebaran, et ASIMO, développé par Honda. Il vise à mettre en évidence la fonction et le statut singuliers de ces robots-compagnons. Il insiste pour cela sur « la bienveillance » exigée du robot et l’image d’un échange émotionnel entre le robot et l’utilisateur, comme sur la connectivité du robot, qui oblige à le voir non pas comme un être à part mais plutôt comme l’avatar, ou l’organe, d’un être dispersé dans l’espace.
Leg Hammock for Closed Reduction of Tibial Shaft Fractures
Authors: Watkins Colyn , Todd Dane , Jamieson Sarah , Mansour Ashton
Published: May 2015

Tibial shaft fractures are common injuries in emergency departments (EDs). Although many of these fractures require surgery, nearly all are stabilized in the ED with a long leg splint or bivalved cast. Long leg splinting is often challenging for a single health care provider. Further, even with assistance or previously described techniques for fracture reduction and stabilization, fracture angulation may occur, potentially leading to pain for the patient, fracture displacement, or further soft tissue injury. The authors propose a method for splinting tibial fractures that avoids fracture angulation, is cost-effective and quick, and can be easily performed by a single health care provider. [
Orthopedics
. 2015; 38(2):113–116.]
Inferior Glenosphere Placement Reduces Scapular Notching in Reverse Total Shoulder Arthroplasty
Authors: Li Xinning , Dines Joshua S. , Warren Russell F. , Craig Edward V. , Dines David M.
Published: May 2015

Scapular notching is a common complication after reverse shoulder arthroplasty and has been associated with poor clinical outcomes. Factors associated with notching include neck shaft angle and glenosphere position. The goal of this study was to evaluate the incidence of notching with an eccentric glenosphere that allows for inferior offset as well as its effect on clinical outcome. The charts of 82 patients who underwent reverse shoulder arthroplasty with this eccentric glenosphere were retrospectively reviewed. Scapular notching was assessed with standard anteroposterior radiographs of the glenohumeral joint according to the Nerot-Sirveaux classification system. Two experienced observers evaluated all radiographs. The presence of radiolucent lines was also evaluated. Both range of motion (ROM) and Constant-Murley scores were obtained. Average age was 74 years (range, 61–91 years), and follow-up was 26.3 months (range, 19–39 months). According to the Nerot-Sirveaux classification, 73 (89%) had no notching, 5 (6%) had grade I notching, 2 (2.5%) had grade II notching, and 2 (2.5%) had grade III notching. The overall presence of notching was 11% and correlated to the amount of inferior offset. No radiolucent lines were seen around the prosthesis. Both ROM and Constant-Murley scores (from 31.3 to 74.2) improved significantly in all patients from preoperative evaluation to final follow-up (
P
<.05). No significant differences in ROM and functional outcome were seen between the groups with and without notching. The inferior offset glenosphere created with this glenosphere base plate design reduced the incidence of scapular notching in reverse shoulder arthroplasty. This was particularly true when the glenosphere was maximally offset inferiorly. In the short term, notching does not affect ROM or functional outcome. [
Orthopedics.
2015; 38(2):e88–e93.]
Outcomes After Hip Arthroscopy in Patients With Workers’ Compensation Claims
Authors: Salvo John P. , Hammoud Sommer , Flato Russell , Sgromolo Nicole , Mendelsohn Elliot S.
Published: May 2015

Patients with a workers’ compensation claim have been shown to have inferior outcomes after various orthopedic procedures. In hip arthroscopy, good to excellent results have been shown in the athletic and prearthritic population in short-term and long-term follow-up. In the current study, the authors’ hypothesis was that patients with a workers’ compensation claim would have inferior outcomes after hip arthroscopy compared with patients without a workers’ compensation claim. All patients with a workers’ compensation claim who underwent hip arthroscopy over a 2-year period were studied. Postoperative functional outcomes were assessed with the Hip Outcome Score and modified Harris Hip Score. A cohort of 30 patients who did not have a workers’ compensation claim was selected for comparison. Twenty-six patients were identified who had a workers’ compensation claim and underwent hip arthroscopy performed by a single surgeon at the authors’ institution with at least 6 months of follow-up. These patients were compared with 30 patients who did not have a workers’ compensation claim. The workers’ compensation group had a Hip Outcome Score of 66.5±28.8 and the non-workers’ compensation group had a Hip Outcome Score of 89.4±12.0. This difference was statistically significant with Wilcoxon test (
P
=.003). The workers’ compensation group had an average modified Harris Hip Score of 72.5±20.7 (mean±SD), and the non-workers’ compensation group had a modified Harris Hip Score of 75.6±15.3. This difference was not significantly significant with Wilcoxon test (
P
=.9). At latest follow-up, 15 patients in the workers’ compensation group (58%) were working. Patients returned to work an average of 6.8 months after surgery. The current study showed that postoperative functional outcomes in the workers’ compensation group, as measured by Hip Outcome Score, were significantly inferior to those in the non-workers’ compensation group. No statistical difference in postoperative modified Harris Hip Score was seen. [
Orthopedics.
2015; 38(2):e94–e98.]
Preoperative Embolization for Bone Metastasis From Hepatocellular Carcinoma
Authors: Kim Wanlim , Han Ilkyu , Jae Hwan Jun , Kang Seungcheol , Lee Sang A. , Kim Jong Seop , Kim Han-Soo
Published: May 2015

Preoperative transcatheter arterial embolization for hypervascular bone tumors is now widely accepted as a safe and effective procedure for reducing intraoperative blood loss and surgical morbidity. However, few studies have reported the use of preoperative transcatheter arterial embolization for nonspine bone metastases from hepatocellular carcinoma. The goal of this study was to assess the effect of preoperative embolization on blood loss and clinical outcomes in surgery for nonspine bone metastasis from hepatocellular carcinoma. Seventy-five patients with metastases from hepatocellular carcinoma to the pelvis and extremities were reviewed retrospectively. The study population consisted of 62 men and 13 women, with a mean age of 64.6 years (range, 40.0–80.1). The average follow-up period was 8.2 months (range, 0.3–66.1). Twenty-two patients underwent transcatheter arterial embolization for preoperative devascularization (group A), and 53 patients underwent operative treatment only (group B). The proportion of pelvis metastases was significantly higher (
P
<.001) and operative time was longer (
P
=.006) in group A than in group B. However, a significantly smaller decrease in hemoglobin level before and after surgery was seen in group A (
P
=.017). No significant differences were seen in intraoperative estimated blood loss, perioperative hemoglobin level, number of allogeneic transfusions, or length of hospitalization between the 2 groups. Preoperative transcatheter arterial embolization is an effective means to reduce bleeding during surgery for nonspine metastases from hepatocellular carcinoma. In general, surgical procedures that included transcatheter arterial embolization took longer and were more extensive. [
Orthopedics.
2015; 38(2):e99–e105.]
Frailes y campesinos en la guerra de separación de Cataluña (1640-1660)
Authors: Torres Sans Xavier
Published: May 2015

En este trabajo se analiza la participación del estamento eclesiástico en la guerra de separación de Cataluña de mediados del siglo XVII; en especial, la de muchos clérigos anónimos que se implicaron abiertamente en el conflicto. Para ello se han compilado una serie de testimonios extraídos de fuentes de diversa naturaleza: opúsculos y tratados coetáneos; documentos de ciertas órdenes religiosas; procesos incoados contra algunos predicadores. El argumento que se maneja es que dicha participación no sólo fue mucho más importante de lo que se supone, sino que tuvo que ver, a su vez, con el sesgo providencialista e incluso algo apocalíptico que tomó la contienda desde el comienzo. La colusión subsiguiente entre frailes y campesinos se ha explicado a menudo por la cercanía sociológica entre unos y otros. Sin embargo, en este artículo se subraya más bien el papel de la clerecía para otorgar un determinado sentido a los acontecimientos.
La muerte del poeta. Funeral de estado y ritual social en el fallecimiento de José Zorrilla (1893)
Authors: Sánchez García Raquel
Published: May 2015

Durante el siglo XIX, el Estado intentó crear unos rituales civiles capaces de sustituir o complementar a las ceremonias militares y religiosas. Los funerales de estado formaron parte de estos rituales. En ellos se mezclaron distintos componentes que trataban de proyectar sobre la sociedad los valores de la nación y del liberalismo. Este artículo analiza dicho proceso siguiendo como eje los funerales del poeta José Zorrilla (enero de 1893). En los funerales de Zorrilla se observa el intento del Estado por protagonizar la ceremonia, la presencia de la Iglesia en todo el proceso y la voluntad del finado, que no fue respetada en absoluto. Para llevar a cabo el trabajo, se utiliza la información procedente de diversas fuentes y se aplica una metodología de análisis basada en el estudio de los rituales cívicos como ceremonias sociales.
Digital Narration and Didactics of History in High School
Authors: Ganino Giovanni
Published: May 2015

The main focus of this work is on didactic planning (in high schools) with a special emphasis on the following topics: the use of problem-solving and social media in a course centered on scientific knowledge, participatory and collaborative activities, on and off line, the paradigms of collective intelligence (), and connective intelligence (, ) and technical skills. The work methodology includes the creation of an integrated educational environment functional to the promotion of process-based learning for the presence of learning practices in the formal didactic setting taken from non-formal or informal contexts, as suggested by Luciano . The leading hypothesis of the work is concerned with the participatory practices (production-sharing-socialization) which are used in a structured learning context and on their effects: a) to increase the degree of interest and involvement of the students and, b) to have a positive effect on subject knowledge (learning history), and cross-curricular knowledge (responsible use of technologies).
Video Game, Author and Lemming
Authors: Annarumma Maria , Fragnito Riccardo , Tedesco Ines , Vitale Luigi
Published: May 2015

Many studies show that video games require attentive and interpretive capacity to generate complex cognitive skills in the gamer and they can be transferred to other contexts, such as school. In this paper, the authors do not aim to investigate the contents of the player's thinking, but rather his/her way of thinking. In this scenario the teacher becomes a worlds' maker, who provides his/her students with the tools allowing them to partake in the co-building of multi-tiered worlds, which requires not only the ability to get access to intangible information but also a skillful management of media interfaces. In this way, the click of the mouse becomes the action par excellence that allows each individual to contribute synergistically to the realization of the digital habitats. The ultimate goal is to search, in the learning processes activated by the video games in both the authors and the lemming, those features that make the learner a self-knowledge builder. Such “socio-cultural grammar” influences the writing and interpretation of messages, turning every individual into an author, who's often unaware of the “scriptwriting culture” that inhabits all the possible media worlds.
ANN based Expert System to Predict Disease in Cardiac Patients at Initial Stages
Authors: Rashid Umer
Published: May 2015

Objective of this research is to develop an expert system for the preliminary investigation of cardiac abnormality in human beings. Artificial Neural Network (ANN) is judged best for the prediction of heart abnormalities in cardiac patients at initial stages. Our research is intended to employ an Artificial Intelligence (AI) technique in an automated solution, having minimum error bounds. An ANN based expert system is designed and developed, which identifies presence or absence of cardiac disease in patients by considering best practiced disease symptoms. The proposed expert system may help the clinicians in the preliminary investigation of cardiac abnormality in human beings.
‘Well-Done, Mr. Mayor!'
Authors: Steinfeld Nili , Lev-On Azi
Published: May 2015

The increasing use of online social networks has given rise to a new kind of relations between residents and authorities at the municipal level, where residents can more easily than ever engage with administrators and representatives, participate in open discussions, and may have more direct involvement and influence on local affairs. The more direct democracy facilitated by social media tools fascinates communication and political science researchers. But while most of their attention is drawn to national politics, the municipal arena can be even more affected by these new means of direct communication. This paper focuses on municipal administration on Facebook, and analyzes the discourse that has developed between citizens and local administrators on municipal Facebook pages, using automatic digital tools. The contents of all formal municipal Facebook pages in Israel were extracted using digital tools, and all posts and comments published on these pages in a period of six months were analyzed using automatic linguistic analysis tools. The paper presents the prominent words and expressions, and terms networks and clusters in the formal municipal Facebook pages. The study discusses the findings, their implications, and the advantages and limitations of using digital tools to analyze texts in a digital research field.
Limits and Potential for eGov and Smart City in Local Government
Authors: Przeybilovicz Erico , Vieira da Silva Wesley , Cunha Maria Alexandra
Published: May 2015

This study explore ICT infrastructure in the towns of Paraná State, reflecting on the potential and limits of ICT in the local government and the possibilities of these cities developing into smart cities. A quantitative study was conducted using multivariate data analysis techniques. The data are secondary and were obtained through a Municipal Basic Information Study in Brazil in 2012. The main result was the identification of five distinct municipal clusters in terms of ICT use and infrastructure. The size of a town is not a determining factor for towns to use and make web based services available to its citizens. Many towns remain lacking in basic infrastructure, with every profile showing different needs. There are a few strong patterns of eGov development and local conditions that could be treated as the foundation for some different policy packages that would be appropriate in these five situations. There are aspects that characterize the challenges and potential of towns than the emphasis placed on eGov. These aspects should be considered in studies of eGov and smart city.
Mobile Games Individualise and Motivate Rehabilitation in Different User Groups
Authors: Koivisto Antti , Merilampi Sari , Sirkka Andrew
Published: May 2015

Trials on Mobile Games are presenting a huge potential in cognitive, physical and mental rehabilitation. This paper is to discuss user viewpoints of trials with mobile games combining cognitive stimulation and physical exercise in rehabilitation: Game#1 controlled by tilting the mobile phone embedded in a balance board; Game#2 controlled by tilting the tablet pc; and Game#3 a modified game version of Trail Making A -memory test played by tapping figures on the tablet pc touch screen. The total amount of participants was 89 of which 74% were older adults (women=24; men=33; average age 85.9 years) and 26% people with learning disabilities (n=23; a 38.9 years). The gameplay setting was similar for all target groups, although the game graphics (Game#1) were slightly modified based on each user group. Mobile devices were used as the game platform to create easily approachable games of low costs and suitable for the majority of people.
Toward a Proof of Concept Implementation of a Cloud Infrastructure on the Blue Gene/Q
Authors: Dreher Patrick , Scullin William , Vouk Mladen
Published: May 2015

Conventional cloud computing architectures may seriously constrain computational throughput for HPC applications and data analysis. The traditional approach to circumvent such problems has been to map such applications onto specialized hardware and co-processor architectures. These shortcomings have given rise to calls for software that can provide richer environments for implementing clouds on these HPC architectures. It was recently reported that a proof of concept cloud computing system was successfully embedded in a standard Blue Gene/P HPC supercomputer. This software defined system re-arranged user access to nodes and dynamically customized features of the BG/P architecture to map clouds systems and applications onto the BG/P. This paper reports on efforts to extend the results achieved on the BG/P to the newer BG/Q architecture. This work demonstrates a potential for a cloud to capitalize on the BG/Q infrastructure and provides a platform for developing better hybrid workflows and for experimentation with new schedulers and operating systems within a working HPC environment.
Factors Influencing Electronic Government Social Sustainability
Authors: Abu-Shanab Emad , Al-Quraan Heba
Published: May 2015

The diffusion of the Internet and other ICT tools has participated successfully to increasing the interaction between citizens, businesses, and governments. Citizens became active participants in both political as well as social reform process. Efforts should be exerted towards sustaining e-government projects to gain the benefits from such initiatives in facilitating work, improving quality of services, enhancing the process of service provision, saving cost, reducing errors, and encourage the communication with political bodies in country. This study tried to explore the factors that influence the sustainability of e-government projects through an empirical study that utilized 248 surveys collected randomly within the educational sector. Results indicated that participation, awareness, and availability were significant predictors of such construct, while trust was not a significant predictor.
Designing Visual Analytic Tools for Emergency Operation Centers
Authors: Arias-Hernandez Richard , Fisher Brian
Published: May 2015

The Emergency Management Information System (EMIS) field has an established tradition of user-centered methodological approaches for design and evaluation research. However, visual analytics, a new field that is starting to intersect with EMIS, is barely using such approaches. Thus an opportunity has emerged to expand these user-centered approaches from EMIS towards visual analytics via the design of visual analytics tools for emergency management. In this article, the authors present a qualitative methodology for design research that takes on this opportunity. This specific methodology is characterized by using non-participant observation and interviews as methods and by being theoretically informed by the multidisciplinary framework of visual analytics. The authors also include a detailed application of the methodology to the design of visual analytic tools for Emergency Operation Centers in Vancouver, Canada as well as the corresponding results: contextual knowledge for design, informed requirements for four design projects and evaluation criteria for these designs.
Out of Work, Out of Mind?
Authors: Collins Emily I.M. , Cox Anna L. , Wootton Ruby
Published: May 2015

Smartphones are now ubiquitous and valuable in many professions and yet have also been blamed for creating an ‘always on' culture, blurring boundaries between work and home. Research has shown that checking e-mails out-of-hours via computer makes workers feel more overloaded with work but also increases their sense of coping. A total of 94 participants completed a survey exploring whether the same pattern would emerge for accessing e-mail on smartphones, showing that those who use smartphones for work e-mail experienced lower levels of overload, but not coping, and push notifications were associated with greater use of smartphones for e-mail. However, there were no significant correlations between coping or overload and e-mail use or quantity, suggesting that lower overload is not due to the ability to processes or read more e-mails outside of work.
Participatory Design
Authors: Hakobyan Lilit , Lumsden Jo , O'Sullivan Dympna
Published: May 2015

Ongoing advances in mobile technologies have the potential to improve independence and quality of life of older adults by supporting the delivery of personalised and ubiquitous healthcare solutions. The authors are actively engaged in participatory, user-focused research to create a mobile assistive healthcare-related intervention for persons with age-related macular degeneration (AMD): the authors report here on our participatory research in which participatory design (PD) has been positively adopted and adapted for the design of our mobile assistive technology. The authors discuss their work as a case study in order to outline the practicalities and highlight the benefits of participatory research for the design of technology for (and importantly with) older adults. The authors argue it is largely impossible to achieve informed and effective design and development of healthcare-related technologies without employing participatory approaches, and outline recommendations for engaging in participatory design with older adults (with impairments) based on practical experience.
Management of vertigo: from evidence to clinical practice
Authors: Gnerre Paola , Casati Carlotta , Frualdo Mariella , Cavalleri Maurizio , Guizzetti Sara
Published: May 2015

Vertigo is a symptom, not a diagnosis and effective diagnosis and management begin with understanding what this symptom may represent. Thus the presence of postural insility includes a differential diagnosis for otologic, neurologic and other medical causes. The objective of this paper is to provide evidence-based recommendations for the proper management of vertigo by multi-parametric analysis of the guidelines available to date.
A Brief Note Concerning Hard Lefschetz for Chow Groups
Authors: Laterveer Robert
Published: May 2015

We formulate a conjectural hard Lefschetz property for Chow groups and prove it in some special cases, roughly speaking, for varieties with ûnite-dimensional motive, and for varieties whose self-product has vanishing middle-dimensional Griõths group. An appendix includes related statements that follow from results of Vial.
Плоский водородоподобный атом в неоднородных магнитных полях: точно или квазиточно решаемые модели
Authors: Liu Liyan , Hao Qinghai
Published: May 2015

Для решения задачи о движении двумерного водородоподобного атома в неоднородных магнитных полях вида $\mathbf B=(k/r)\mathbf z$ и $\mathbf B=(k/r^3)\mathbf z$ применяется простой математический метод. Построен гамильтониан, имеющий тот же вид, что и гамильтониан водородоподобного атома в однородных магнитных полях, и с помощью сравнения гамильтонианов получен энергетический спектр. Результаты показали, что можно получить весь спектр атома в магнитном поле $\mathbf B=(k/r)\mathbf z$, таким образом, в этом случае задача является точно решаемой. Найдены аналитические решения уравнения Шредингера для атома в магнитном поле $\mathbf B=(k/r^3)\mathbf z$ при определенных значениях магнитной напряженности $k$, тем самым представлена квазиточно решаемая модель.
Структуры Намбу на четырехмерных действительных группах Ли и связанные с ними суперинтегрируемые системы
Authors: Farhang-Sardroodi S , Rezaei-Aghdam Adel , Sedghi-Ghadim L
Published: May 2015

Определены все тензоры Намбу (структуры Намбу) третьего и четвертого порядков на четырехмерных действительных группах Ли. Кроме того, с помощью структур Намбу четвертого порядка получены суперинтегрируемые системы на некоторых из этих групп Ли, взятых в качестве фазовых пространств, с группами симметрий $\mathbf A_{4,8}$ и $\mathbf A_{4,10}$.
Построение точно решаемых потенциалов в $D$-мерном уравнении Шредингера с массой, зависящей от координат, при помощи метода преобразований
Authors: Rajbongshi Hangshadhar , Singh N Nimai
Published: May 2015

Метод обобщенных преобразований применяется к радиальному уравнению Шредингера с постоянной массой, которому удовлетворяет сферически-симметричный центральный потенциал, с целью получения точно решаемых квантовых систем с массой, зависящей от координат, в пространстве произвольной размерности в нерелятивистском пределе. Метод включает в себя координатное преобразование с последующим функциональным преобразованием и набор подстановок для функции массы, который приводит к появлению точно решаемых квантовых систем с массами, зависящими от координат. Также показано, что упорядочение Жу-Кремера для значений нефиксированных параметров оказывается естественным для систем с радиально-симметричными функциями масс и центральным потенциалом. В качестве примера метод применяется к потенциалу Меннинга-Розена и потенциалу Морса при различных выборах функций массы. Указано также на применение метода к потенциалу Халтена.
О лагранжевой структуре модели золотой рыбки Калоджеро
Authors: Jairuk Umpon Pon , Yoo-Kong Sikarin , Tanasittikosol Monsit
Published: May 2015

Из анзаца пары Лакса получена рациональная система золотой рыбки Калоджеро с дискретным временем. Лагранжианы с дискретным временем для этой системы имеют структуру $1$-формы с дискретным временем подобно лагранжианам систем Калоджеро-Мозера и Руджинарса-Шнайдера с дискретным временем. Иерархия лагранжианов для этой системы получается в результате двухшагового перехода к непрерывному пределу. Как и ожидалось, лагранжиан с непрерывным временем сохраняет структуру $1$-формы. Установлена связь с решеточными системами Кадомцева-Петвиашвили.
Sinonasal Rosai-Dorfman Disease
Authors: Murali Sathiya , Kameswaran Mohan , Natarajan Kiran , Devarasetty Amarnath , Senthilvadivu A , LNU Sudhamaheswari
Published: May 2015

Aim

Rosai-dorfman disease (RDD) is a rare histiocytic proliferative disorder characterized by painless massive lymphadenopathy. Extranodal manifestations may occur in the head and neck area. This is a case report of a patient with sinonasal RDD and its management.

Materials and methods

This is a case report of a 36-year-old patient with sinonasal RDD. The clinical features, imaging and histological features are described. The patient underwent endoscopic surgery. Recurrence (8 months later) was managed by laserization of the nasal mass with KTP/532 laser followed by oral corticosteroid therapy.

Results

A 36-year-old lady presented with complaints of left sided nasal obstruction, nasal discharge and left facial discomfort of 6 months duration. There was history of occasional blood stained nasal discharge. Diagnostic nasal endoscopy revealed a polypoidal mass in the left nasal cavity. CT scans revealed soft tissue opacity in the left maxillary antrum, left ostiomeatal complex and extending into the left orbit. There was erosion of the posterolateral wall of the left maxilla. The patient underwent endoscopic surgery and had an uneventful postoperative recovery. Biopsy was reported as Rosai-Dorfman disease. Subsequently, 8 months later, the patient reported with a complaint of nasal obstruction and discharge. A recurrent lesion was noted in the left nasal cavity and maxillary antrum. The mass was managed by laserization followed by oral corticosteroid therapy. One year later, the patient is free from disease and has been advised regarding the necessity of periodic follow-ups.

Conclusion

RDD is a rare disease encountered by the otolaryngologist. The manifestation of extranodal Rosai-Dorfman disease is most commonly seen in the nasal cavity and paranasal sinuses. The clinical findings and imaging characteristics are variable and the diagnosis can be easily missed. Otolaryngologists and pathologists must be aware of the clinical presentation, imaging characteristics and histologic features of Rosai-Dorfman disease.

How to cite this article

Natarajan K, Devarasetty A, Murali S, Senthilvadivu A, Sudhamaheswari, Kameswaran M. Sinonasal Rosai-Dorfman Disease. Clin Rhinol An Int J 2014;7(3):142-146.
The Effects of Epithelium-off Corneal Collagen Cross-linking on Peripheral Corneal Keratometry, Pachymetry as well as Scheimpflug Imaging Calculated Corneal Indices in Keratoconus
Authors: Muzychuk Adam , Penner Victor , Rocha Guillermo , Al-Ghoul Ahmed
Published: May 2015

Purpose

To utilize Scheimpflug imaging to describe corneal changes in keratoconic patients undergoing collagen cross- linking.

Study type

Case series.

Study design

Retrospective chart review at two sites: Calgary, Alberta and Brandon, Manitoba, Canada. All patients were diagnosed with keratoconus and had undergone corneal collagen crosslinking. All patients had pre- and post-procedure imaging done with Oculus Pentacam.

Results

Sixty-one eyes of 48 patients with 6 months follow- up and 36 eyes of 27 patients with one year follow-up were included. Average age was 27 ± 12 years (15-48 years). Fifty- one males and 10 females were studied. At 1 year follow-up, all Pentacam indices were found to improve: ISV −4.44 ± 18.6 (p = 0.16), IVA −0.07 ± 0.27 (p = 0.12), KI −0.009 ± 0.082 (p = 0.49), CKI −0.012 ± 0.027 (p = 0.01), IHA −3.87 ± 23.3 (p = 0.33) and IDH −0.062 ± 0.308 (p = 0.24). Keratometry measurements were flatter at the pupil centre by 0.87 ± 2.53 D (p = 0.05). Kmax and Kmin were flatter by 0.58 ± 1.37 D (p = 0.02) and 0.33 ± 1.70 D (p = 0.25) respectively. Pupil center pachymetry was thinner by 12.9 ± 21.1 µm (p = 0.0006) at 6 months, as were the corneal apex and thinnest local by 12.9 ± 22.3 µm (p = 0.001) and 21.8 ± 54.6 µm (p = 0.05) respectively. However, all central pachymetry readings were not statistically different from baseline at the one year measurements. Peripheral corneal measurements at 6 mm diameter were no different from baseline at 6 months, however, were significantly thicker at the 1 year follow-up.

Conclusion

The data, in this study, points to a more uniform cornea post corneal collagen crosslinking. The inferior cornea becomes flatter and superior cornea steeper with less variation when comparing the corneal curvatures. The peripheral cornea becomes thicker at 1 year post-procedure. Collagen cross- linking stabilizes the cornea.

How to cite this article

Penner V, Muzychuk A, Al-Ghoul A, Rocha G. The Effects of Epithelium-off Corneal Collagen Crosslinking on Peripheral Corneal Keratometry, Pachymetry as well as Scheimpflug Imaging Calculated Corneal Indices in Keratoconus. Int J Kerat Ect Cor Dis 2014;3(3):113-117.
Transient Keratoconus following Acute Conjunctivitis
Authors: Rocha Guilherme , Rocha Arthur
Published: May 2015

A 34-year-old female patient presented low visual acuity and vision fluctuation in left eye after a referred acute conjunctivitis. Two previous ophthalmological evaluations diagnosed keratoconus, but the patient disagreed with this diagnosis. Following the patient with an anterior segment tomography and clinical evaluation showed that she had a keratoconus- like topographic and clinical pattern that resolved after a few months of follow-up.

How to cite this article

Rocha G, Torquetti L, Rocha A. Transient Keratoconus following Acute Conjunctivitis. Int J Kerat Ect Cor Dis 2014;3(3):136-140.
Two-dimensional numerical simulations of shoaling internal solitary waves at the ASIAEX site in the South China Sea
Authors: Lamb K. G. , Warn-Varnas A.
Published: May 2015

Abstract. The interaction of barotropic tides with Luzon Strait topography generates some of the world's largest internal solitary waves which eventually shoal and dissipate on the western side of the northern South China Sea. Two-dimensional numerical simulations of the shoaling of a single internal solitary wave at the site of the Asian Seas International Acoustic Experiment (ASIAEX) have been undertaken in order to investigate the sensitivity of the shoaling process to the stratification and the underlying bathymetry and to explore the influence of rotation. The bulk of the simulations are inviscid; however, exploratory simulations using a vertical eddy-viscosity confined to a near bottom layer, along with a no-slip boundary condition, suggest that viscous effects may become important in water shallower than about 200 m. A shoaling solitary wave fissions into several waves. At depths of 200–300 m the front of the leading waves become nearly parallel to the bottom and develop a very steep back as has been observed. The leading waves are followed by waves of elevation (pedestals) that are conjugate to the waves of depression ahead and behind them. Horizontal resolutions of at least 50 m are required to simulate these well. Wave breaking was found to occur behind the second or third of the leading solitary waves, never at the back of the leading wave. Comparisons of the shoaling of waves started at depths of 1000 and 3000 m show significant differences and the shoaling waves can be significantly non-adiabatic even at depths greater than 2000 m. When waves reach a depth of 200 m, their amplitudes can be more than 50% larger than the largest possible solitary wave at that depth. The shoaling behaviour is sensitive to the presence of small-scale features in the bathymetry: a 200 m high bump at 700 m depth can result in the generation of many mode-two waves and of higher mode waves. Sensitivity to the stratification is considered by using three stratifications based on summer observations. They primarily differ in the depth of the thermocline. The generation of mode-two waves and the behaviour of the waves in shallow water is sensitive to this depth. Rotation affects the shoaling waves by reducing the amplitude of the leading waves via the radiation of long trailing inertia-gravity waves. The nonlinear-dispersive evolution of these inertia-gravity waves results in the formation of secondary mode-one wave packets.
Simulation of tsunami generation, propagation and coastal inundation in the Eastern Mediterranean
Authors: Samaras A. G. , Karambas T. V. , Archetti R.
Published: May 2015

Abstract. In the present work, an advanced tsunami generation, propagation and coastal inundation 2-DH model (i.e. 2-D Horizontal model) based on the higher-order Boussinesq equations – developed by the authors – is applied to simulate representative earthquake-induced tsunami scenarios in the Eastern Mediterranean. Two areas of interest were selected after evaluating tsunamigenic zones and possible sources in the region: one at the Southwest of the island of Crete in Greece and one at the East of the island of Sicily in Italy. Model results are presented in the form of extreme water elevation maps, sequences of snapshots of water elevation during the propagation of the tsunamis, and inundation maps of the studied low-lying coastal areas. This work marks one of the first successful applications of a fully nonlinear model for the 2-DH simulation of tsunami-induced coastal inundation; acquired results are indicative of the model's capabilities, as well of how areas in the Eastern Mediterranean would be affected by eventual larger events.
Tracing the Footsteps of the Fathers: The History of the Acta Unitatis Fratrum
Authors: Mai Claudia
Published: May 2015

In 1840 the Moravian Church purchased a set of thirteen volumes of historical records relating to the ancient Unity of Brethren. This article discusses the content and origins of these so-called Lissa Folios and describes efforts made to translate them into German and their use in the historiography of the Unity of Brethren. In 1945 the Lissa Folios were brought to Prague and are today preserved under the best archival practices at the Czech State Archives.
On an Eighteenth-Century Trail of Tears: The Travel Diary of Johann Jacob Schmick of the Moravian Indian Congregation's Journey to the Susquehanna, 1765
Authors: Wheeler Rachel , Hahn-Bruckart Thomas
Published: May 2015

This piece is a translation of a travel journal kept by missionary Johann Jacob Schmick as he traveled with the Moravian Indian congregation from Philadelphia to the Susquehanna in 1765. The community of mostly Delaware and Mohican Indians had been living under armed guard at the Philadelphia Barracks following the violence instigated by Pontiac's Revolt and the Paxton Boys uprising. The community's settlement on the Susquehanna marked a new model of Moravian mission and serves as an early example of Indian removal, particularly noteworthy in this instance because the community was composed of Christian Indians.
Green Vehicle Routing for Small Motor Carriers
Authors: Suzuki Yoshinori , Kabir Qazi Shaheen
Published: May 2015

This article proposes a simple vehicle-routing technique that can help motor carriers reduce fuel consumption and pollutant emission. This technique is designed specifically for small motor carriers, which, unlike large carriers, may not benefit from modern vehicle-routing techniques because of the lack of technical capabilities to implement such methods or financial power to buy expensive vehicle-routing software products. Since the majority of motor carriers are small in many places (especially in the United States and Europe), it is important that we help this particular segment of the trucking industry (small carriers) reduce their environmental impacts if we wish to minimize the overall impacts of the industry. Computational testing shows that our method not only cuts fuel consumption and pollutant emission, but also reduces road damage.
Radiographic Distortion Artifact of Circular External Fixators
Authors: Secrest Scott , Nagy Jesse , Kneller Stephen
Published: May 2015

Circular external fixators are commonly used to surgically treat a variety of orthopedic conditions. However, distortion artifact may mislead the radiographic interpreter as to the true anatomic location of the transfixing wires and either negatively impact patient healing or lead to unnecessary procedures. Distortion is due to unequal magnification of different parts of an object. The purpose of this study was to assess distortion of three circular external fixator apparatuses with the transfixing wires at 30, 60, and 90°. Distortion was greatest with all three apparatuses at 10° of rotation from parallel to the central X-ray beam. When comparing distortion between the three apparatuses, distortion was greatest with the transfixing wires at 30°. The study authors concluded that distortion artifact is most severe when the transfixing wires are at smaller angles and when they are farther from the X-ray table. The circular external fixator should be placed in the center of, and parallel to, the primary X-ray beam and as close to the table as possible to reduce/prevent distortion artifact and possible radiographic misinterpretation of transfixing wire location.
Pancreatic Abscess in a Cat with Diabetes Mellitus
Authors: Lee Minji , Kang Ji-Houn , Chang Dongwoo , Na Ki-Jeong , Yang Mhan-Pyo
Published: May 2015

An 11 yr old spayed female Maine coon cat was referred with uncontrolled diabetes mellitus. The cat had a 2 mo history of weight loss and intermittent vomiting. An abdominal ultrasound identified the presence of a large cavity measuring a maximum of 4.6 cm in the pancreas that was filled with a homogeneous echogenic fluid. Cytological analysis and culture of the fluid obtained from the pancreatic mass indicated the presence of a bacterial abscess. The application of nonsurgical drainage and the administration of glargine insulin and antibiotics resolved the clinical signs. The size of the pancreatic abscess was reduced after 5 mo, and the cat achieved diabetic remission and remained healthy at the time this report was prepared. This case report describes the successful treatment of a pancreatic bacterial abscess concurrent with diabetes mellitus in a Maine coon cat.
Chronic Splenic Torsion in Two Dogs
Authors: Reinhart Jennifer M. , Sherwood J. Matthew , KuKanich Katherine S. , Klocke Emily , Biller David S.
Published: May 2015

A 5 yr old spayed female poodle (case 1) was presented with a 4 mo history of lethargy, inappetence, and nonregenerative anemia. A 5 yr old castrated male French bulldog (case 2) was presented with a 2 wk history of mild abdominal pain, dyschezia, and intermittent anorexia. Both dogs were diagnosed with chronic splenic torsion based on changes in splenic position, echogenicity, and/or echotexture identified on B-mode abdominal ultrasonography, as well as either decreased or absent splenic blood flow on color-flow Doppler ultrasonography. Both dogs underwent splenectomy and had full resolution of clinical signs. Presentation of chronic splenic torsion is variable, and clinical signs can be nonspecific. Abdominal ultrasound with Doppler evaluation is an important diagnostic step that can lead to appropriate surgical intervention and good long-term prognosis.
Acquired Tricuspid Valve Stenosis Associated with Two Ventricular Endocardial Pacing Leads in a Dog
Authors: Tompkins Emily , Dulake Michelle I. , Ghaffari Shadie , Nakamura Reid K.
Published: May 2015

Acquired tricuspid valve stenosis (TVS) is a rare complication of endocardial pacing lead implantation in humans that has only been described once previously in the veterinary literature in a dog with excessive lead redundancy. A 12 yr old terrier presented with right-sided congestive heart failure 6 mo after implantation of a second ventricular endocardial pacing lead. The second lead was placed due to malfunction of the first lead, which demonstrated abnormally low impedance. Transthoracic echocardiography identified hyperechoic tissue associated with the pacing leads as they crossed the tricuspid valve annulus as well as a stenotic tricuspid inflow pattern via spectral Doppler interrogation. Medical management was ultimately unsuccessful and the dog was euthanized 6 wk after TVS was diagnosed. The authors report the first canine case of acquired TVS associated with two ventricular endocardial pacing leads.
The Renal Effects of NSAIDs in Dogs
Authors: Lomas Amy L. , Grauer Gregory F.
Published: May 2015

The quality of life for dogs with osteoarthritis can often be improved with nonsteroidal anti-inflammatory drugs (NSAIDs); however, the number of adverse drug events associated with NSAID use reported to the Federal Drug Administration Center for Veterinary Medicine is higher than that for any other companion animal drug. Of those events, adverse renal reactions are the second most reported. NSAIDs produce pharmacologic effects via inhibition of cyclooxygenase (COX), which decreases production of prostanoids. Prostaglandins are synthesized by both the COX-1 and COX-2 enzymes in the healthy kidney and influence renal blood flow, glomerular filtration rate, renin release, and Na excretion. There are important species differences in the renal expression of COX-1 and COX-2. For example, dogs have higher basal levels of COX-2 expression in the kidney compared with humans. In addition, in dogs with chronic kidney disease, an increase in COX-2 expression occurs and synthesis of prostaglandins shifts to the COX-2 pathway. For those reasons, NSAIDs that target COX-2 may be expected to adversely affect renal function in dogs, especially dogs with chronic kidney disease. The purpose of this review was to evaluate the literature to report the renal effects of NSAIDs in dogs.
Research Commentary: Observations on Citation Practices in Mathematics Education Research
Authors: Leatham Keith R.
Published: May 2015

In this research commentary, I argue that the field of mathematics education as a whole can and should improve its citation practices. I begin by discussing 4 forms of citation practice and considering how they vary with respect to transparency of voice. I then discuss several ways our citation practices may misrepresent cited authors' ideas, providing examples to illustrate the errors. I conclude by suggesting ways that we as writers (but also as reviewers and as graduate faculty) might jointly work toward improving our citation practices.
The biological function of an insect antifreeze protein simulated by molecular dynamics
Authors: Kuiper Michael J , Morton Craig J , Abraham Sneha E , Gray-Weale Angus
Published: May 2015

Antifreeze proteins (AFPs) protect certain cold-adapted organisms from freezing to death by selectively adsorbing to internal ice crystals and inhibiting ice propagation. The molecular details of AFP adsorption-inhibition is uncertain but is proposed to involve the Gibbs–Thomson effect. Here we show by using unbiased molecular dynamics simulations a protein structure-function mechanism for the spruce budworm Choristoneura fumiferana AFP, including stereo-specific binding and consequential melting and freezing inhibition. The protein binds indirectly to the prism ice face through a linear array of ordered water molecules that are structurally distinct from the ice. Mutation of the ice binding surface disrupts water-ordering and abolishes activity. The adsorption is virtually irreversible, and we confirm the ice growth inhibition is consistent with the Gibbs–Thomson law.
Coordination of peptidoglycan synthesis and outer membrane constriction during Escherichia coli cell division
Authors: Gray Andrew N , Egan Alexander JF , van't Veer Inge L , Verheul Jolanda , Colavin Alexandre , Koumoutsi Alexandra , Biboy Jacob , Altelaar A F Maarten , Damen Mirjam J , Huang Kerwyn Casey , Simorre Jean-Pierre , Breukink Eefjan , den Blaauwen Tanneke , Typas Athanasios , Gross Carol A , Vollmer Waldemar
Published: May 2015

To maintain cellular structure and integrity during division, Gram-negative bacteria must carefully coordinate constriction of a tripartite cell envelope of inner membrane, peptidoglycan (PG), and outer membrane (OM). It has remained enigmatic how this is accomplished. Here, we show that envelope machines facilitating septal PG synthesis (PBP1B-LpoB complex) and OM constriction (Tol system) are physically and functionally coordinated via YbgF, renamed CpoB (Coordinator of PG synthesis and OM constriction, associated with PBP1B). CpoB localizes to the septum concurrent with PBP1B-LpoB and Tol at the onset of constriction, interacts with both complexes, and regulates PBP1B activity in response to Tol energy state. This coordination links PG synthesis with OM invagination and imparts a unique mode of bifunctional PG synthase regulation by selectively modulating PBP1B cross-linking activity. Coordination of the PBP1B and Tol machines by CpoB contributes to effective PBP1B function in vivo and maintenance of cell envelope integrity during division.