bluuebunny/crossref_metadata_2025 huggingface dataset:
iPhoneography in the Secondary Classroom
Authors: Oliver Kristi
Published: May 2015

In this chapter the author describes a qualitative study aimed to explore how secondary students used smartphone technology to capture and share images via social media. The findings of the study include: digital identity construction, image sharing and social media, the perception of public vs. private, image sharing as critique, and iPhoneography as visual communication. Pedagogical implications of incorporating iPhoneography into existing visual art curricula are explored, and include suggestions for utlilzing iPhoneography to enhance skills in thematic development, as well as an effective tool for formative assessment. Finally, ways to challenge students creatively by using prompts inspired by contemporary photographers are proposed.
Expanding Opportunities in Teacher Education
Authors: Mitchell Donna Mathewson
Published: May 2015

Initial teacher education has a critical role in preparing future teachers. In an era of increasing distance education, an additional challenge is to effectively prepare pre-service teachers who connect with higher education in an online environment. The diversity of the higher education student cohort studying by distance is significant and can easily be rendered invisible through the ‘facelessness' of digital technology. In addressing this challenge, this chapter outlines an innovative program undertaken in two secondary visual arts curriculum subjects delivered in distance mode in a graduate-entry teaching course. The innovation models a practice-based partnership involving higher education and community and culminates in a professional student exhibition. Outcomes include: positive student experience; high levels of achievement; increased civic consciousness and involvement; meaningful integration of cross-curriculum perspectives; and sustained focus on teaching practice. The program provides an example of an integrated use of technology to enhance university teaching and learning with the aim of informing future K-12 educational possibilities.
Teaching the Twenty-First Century Competencies through Museum Interactives on Ancient Art and Archaeology
Authors: Ng-He Carol
Published: May 2015

This chapter includes perspectives of the museum educators on the importance of the integration of scholarly research and museum education for the online K-12 audience. The chapter is written primarily for museum educators, classroom teachers, and individuals who are interested in the museum-school partnerships, and ancient art and archaeology education through digital technology. The chapter includes some students' work to reflect their progress on making the connection between ancient art and archaeology to our society today.
Environmental Management Ecosystem vs. Engineering System Theory Approach Modeling and Analysis
Authors: Zlateva Ivelina Yordanova , Raykov Violin Stoyanov , Nikolov Nikola , Alexandrova Mariela Ivanova
Published: May 2015

There are clear indications that the potential for improvement of the fisheries management in the Black Sea is more connected to innovative ecosystem preservation approach and systematic managerial measures than to innovative technology implications. The fisheries management in terms of sustainability has been identified as a complex task and any measure or management decision has a huge impact in any related matters – bio-ecological, socioeconomic and relevant authorities' enforcement costs. In order to define a simplified approach and unify the procedure of decision making the authors of the entire chapter will analyze possible future implications and simplification of the Ecosystem approach through the System Theory modeling, aiming to adapt this complex structure to open discrete system model with identified input and output, which gives an option for adaptive observation, based on the system's feedback and respectively new approach in analysis of the resource management process.
Fish Stock Indicators as Measure for Sustainability
Authors: Raykov Violin S. , Zlateva Ivelina
Published: May 2015

Particular species may be good indicators of specific environmental factors in their local environment. It was found that one of the main objectives for effective and sustainable management of the fish stocks is to make regular annual assessment of the parental stock biomass, length and weight growth, age determination, mortality estimation and reproductive potential estimation. The Black Sea sprat (Sprattus sprattus L.) is a key species in the Black Sea ecosystem. Small pelagic forage fish and especially local one with shared stocks are very important from ecological (key trophic level) and commercial (intensively exploited) point of view. Fishery management strategies must ensure that fishing mortality will not exceed that which corresponds to MSY, and that the biomass will not fall below a predefined threshold. The goal of the chapter is to define the main objectives and measures for sustainable sprat exploitation in order to be in favour of decision makers and fishery managers.
Stock Assessment of Anchovy (Engraulis encrasicolus L) in Northern Black Sea and Sea of Azov
Authors: Chashchin Alexander , Shlyakhov Vladyslav Alekseevich , Dubovik Vladimir E. , Negoda Sergey
Published: May 2015

European anchovy is most abundant in the Azov and Black Sea Basin ichthyocenosis and plays leading role in the marine fisheries. There are two subspecies of the European anchovy in the Black Sea: the Black Sea anchovy Engraulis encrasicolus ponticus Aleksandrov and the Azov anchovy Engraulis encrasicolus maeoticus Pusanov. Wintering areas of both subspecies (stocks) are located in the Black Sea. Basing on the more than 30-years research of anchovy, this chapter summarizes data on catches, catch per unit effort, population parameters, spatial distribution patterns, abundance, and scientific survey results separately for two stocks. Direct methods of stock assessment, based on trawl, lampara and hydroacoustic surveys data, have been applied. Authors recommend to the Black Sea countries authorities to build their anchovy fishery-regulating decisions mainly on the hydroacoustic surveys' results. A major impact of invasive Atlantic ctenophores Mnemiopsis leidyi and Beroe ovata on anchovy populations is revealed.
The Role of the Black Sea Commission in the Sustainable Management of the Marine Living Resources
Authors: Makarenko Iryna
Published: May 2015

In this chapter, the role of the Black Sea Commission in the preservation of marine environment will be considered. Particular emphasis will be placed on the activities related to management of the marine living resources, the legal gaps in the documents and institutional structure, as well the current trends and challenges on the regional and global level. An overview of relevant Black Sea Commission's observers and partners will be provided; existing and possible future arrangements with them will be further described and analyzed. Some concrete recommendations on the improvements in the management of marine living resources in the Black Sea basin will be proposed.
Time Series Database Analysis on Fishery in Greece
Authors: Tegos George , Onkov Kolyo Zlatanov
Published: May 2015

Statistical institutions collect and store multi-aspect fishery data in databases, but do not provide any on-line processing. Extraction and processing of datasets through known statistical software are not sufficient in case an in-depth data analysis is needed. The developed Information Platform consists of a multidimensional database storing spatial fishery time series in Greece and software modules comprising known statistical and original data mining procedures. The platform provides the capability to find out temporal and spatial features of fishery processes and analyzes sustainability, fish species at biological risk, biodiversity, seasonality and relations among them. This solution supports researchers in the fields of marine biology and ecology to study changes in fish communities and marine ecosystems and facilitates experts and managers to take decisions concerning fish resources exploitation and preservation. The presented approach can be also applied on fishery time series of other fish regions, for example in Black Sea.
Transformative Learning
Authors: Halupa Colleen M.
Published: May 2015

The purpose of this chapter is to provide a theoretical as well as practical overview of transformative learning and how this theory applies to both faculty and students. Transformative learning (TL) is the stage where the educational process becomes more than just a transfer of knowledge; it becomes authentic, true learning. TL is reflective, experiential, student-centered and requires self-directive learners and faculty who are willing to provide meaningful, relevant, problem-based assessment and use a variety of teaching methods. The major tenets of transformational learning and how it applies to learning and curriculum are also discussed in this chapter.
Hybrid, Online, and Flipped Classrooms in Health Science
Authors: Konecny Lynda Tierney
Published: May 2015

With the changing face of education and increased need for unique and technology-enhanced learning environments, educators must have current and relevant information to assist in making informed choices about how to create the most effective learning experiences. In this chapter, hybrid, online, and flipped classrooms are defined based on information found in relevant peer-reviewed and professional literature. Examples in practice within health sciences education are provided of each classroom type, as well as uses in environments where students take control of their own learning. Positive and negative aspects of each learning environment are discussed. Recommendations and best practices are suggested to facilitate the practical application of each.
Transformative Learning in Osteopathic Medical Education
Authors: Sexton Patricia S. , Chamberlain Neal R.
Published: May 2015

Osteopathic medical education has undergone a transformation in the past century. From the work of Abraham Flexner to present, many lessons have been learned. Today the education of physicians relies on best practices from adult learning theory to allow learners to master the ever expanding biomedical knowledge and skill base needed for competency. Learners are expected to maintain active knowledge of a vast array of facts, be proficient at clinical skills and adapt this knowledge seamlessly to the varied situations they confront with patients. This chapter reviews the past, examines the present and envisions the future, noting how transformative learning is essential to medical training.
A Longitudinal Study of Facilitating Medical Students' Stepwise Transformation to Distance Learners
Authors: Pettersson Fanny , Olofsson Anders D.
Published: May 2015

This chapter focuses on medical students' experiences in transforming from face-to-face to distance learners in a Swedish regionalized medical program (RMP). One group of students (n=100) were followed during six semesters through surveys, log data, observations, and in-depth interviews. A research model built on the Cultural-Historical Activity Theory (CHAT), including the notion of dominant and non-dominant activities, was used in order to identify factors that influence students' stepwise transformation from face-to-face to distance learners. The analysis contains the investigation of pedagogical, institutional, and historically grounded conflicts that seem to inhibit medical students from making a complete transformation to distance learners. By going deeper into the analysis of transitional actions, which seems to help in solving conflicts, the chapter discusses implications to facilitating medical students' future transformation from face-to-face to distance learners. These implications are examples of curriculum redesigns, such as new educational designs and integration of technology and pedagogy in the curriculum.
A User Friendly Guide to Successful Implementation of Care Mapping
Authors: Arena-Marshall Carrie Ann
Published: May 2015

The goal of care mapping in the clinical setting in undergraduate nursing education is to determine the student's ability to collect, present, and connect relevant data points in order to evaluate and understand the medical plan of care and to develop a priority based nursing plan of care. This same process can be utilized across all health science education programs. The purpose of this chapter is to share how the author has modified the traditional concept map tool to a more user friendly format and to present a process of implementation that may be used in the clinical setting as part of any undergraduate health science program. The benefits of such an implementation are that of more enriched learning to include the development of critical thinking skills, the use of a common sense approach, and the recognition of the patient as a holistic being.
Understanding the SNN Input Parameters and How They Affect the Clustering Results
Authors: Moreira Guilherme , Santos Maribel Yasmina , Pires João Moura , Galvão João
Published: May 2015

Huge amounts of data are available for analysis in nowadays organizations, which are facing several challenges when trying to analyze the generated data with the aim of extracting useful information. This analytical capability needs to be enhanced with tools capable of dealing with big data sets without making the analytical process an arduous task. Clustering is usually used in the data analysis process, as this technique does not require any prior knowledge about the data. However, clustering algorithms usually require one or more input parameters that influence the clustering process and the results that can be obtained. This work analyses the relation between the three input parameters of the SNN (Shared Nearest Neighbor) clustering algorithm, providing a comprehensive understanding of the relationships that were identified between k, Eps and MinPts, the algorithm's input parameters. Moreover, this work also proposes specific guidelines for the definition of the appropriate input parameters, optimizing the processing time, as the number of trials needed to achieve appropriate results can be substantial reduced.
Identifying and Analyzing Popular Phrases Multi-Dimensionally in Social Media Data
Authors: Zhao Zhongying , Li Chao , Zhang Yong , Huang Joshua Zhexue , Luo Jun , Feng Shengzhong , Fan Jianping
Published: May 2015

With the success of social media, social network analysis has become a very hot research topic and attracted much attention in the last decade. Most studies focus on analyzing the whole network from the perspective of topology or contents. However, there is still no systematic model proposed for multi-dimensional analysis on big social media data. Furthermore, little work has been done on identifying emerging new popular phrases and analyzing them multi-dimensionally. In this paper, the authors first propose an interactive systematic framework. In order to detect the emerging new popular phrases effectively and efficiently, they present an N-Pat Tree model and give some filtering mechanisms. They also propose an algorithm to find and analyze new popular phrases multi-dimensionally. The experiments on one-year Tencent-Microblogs data have demonstrated the effectiveness of their work and shown many meaningful results.
An Exploration of Pre-Service Teachers' Intention to Use Mobile Devices for Teaching
Authors: Hur Jung Won , Shen Ying W. , Kale Ugur , Cullen Theresa A.
Published: May 2015

Teachers in the US have been increasingly adopting mobile devices for teaching, but little research has examined how pre-service teachers perceive mobile device integration in classrooms. To address this issue, the study developed a research model that explained factors affecting pre-service teachers' intention to use mobile devices and the relationship among the factors. A total of 386 pre-service teachers participated in an online survey, and the model was tested using structural equation modeling. The results showed that 72.5% of variances in pre-service teachers' intention to use mobile devices were explained by perceived usefulness and self-efficacy for technology integration jointly, where perceived usefulness was the strongest predictor. The findings also demonstrated that constructivist beliefs and perceived ease of use indirectly influenced pre-service teachers' intention to use mobile devices for teaching.
Laminated Composite Stiffened Cylindrical Shell Panels with Cutouts under Free Vibration
Authors: Sahoo Sarmila
Published: May 2015

The free vibration of laminated composite stiffened cylindrical shell panels in the presence of cutout is investigated. A finite element code is developed using eight-noded curved quadratic isoparametric element for shell with a three noded beam element for stiffener and the formulation is validated through solution of benchmark problems which were earlier solved by other researchers. Parametric study is carried out varying the size of the cutouts and their positions with respect to the shell centre for different edge constraints. The results are presented in the form of figures and tables. The results are further analyzed to suggest guidelines to select optimum size and position of the cutout with respect to shell centre considering the different practical constraints.
Study on Slurry Paste Boronizing of 410 Martensitic Stainless Steel Using Taguchi Based Desirability Analysis (TDA)
Authors: Atul S.C. , Adalarasan R. , Santhanakumar M.
Published: May 2015

The application of martensitic stainless steel in gas turbine blades, bushings, valves and mine ladder rungs requires wear and corrosion resistant surfaces. The process of boronizing can produce extremely hard and wear resistant surfaces for such components. The study depicts the application of Taguchi based desirability analysis for parameter design in the process of boronizing martensitic stainless steel. The surface hardness, diffusion depth and wear loss were observed on samples subjected to slurry paste boronizing (SPB). During experimentation, the parameters varied include the boronizing temperature, boronizing time and paste thickness. The optimal setting of the boronizing parameters identified by Taguchi based desirability analysis (TDA) was observed to improve the quality characteristics studied in the process significantly. The duration of boronizing process was found to play a major role in controlling the diffusion depth and the formation of a mono phasic (FeB) layer on the surface was found to be the reason for improved hardness and wear resistance.
Localized Radon Polar Harmonic Transform (LRPHT) Based Rotation Invariant Analysis of Textured Images
Authors: Singh Satya P , Urooj Shabana
Published: May 2015

In this paper, the authors propose a method to analyze and capture the information from texture regardless their geometric deformation. Input image is transformed to radon space and multiresolution is achieved within the radon space using Gaussian derivative wavelet. The transformed image is applied to the polar harmonic transform (PHT). The proposed method is tested against additive Gaussian noise and impulse noise with different rotations. A k- nearest neighbor classifier is employed to classify the texture. To test and evaluate correct classification percentage of the method, several sets of texture are evaluated with different rotation angle under different noisy condition. Experimental results show superiority of method in comparison to recent invariant texture analysis method.
An Efficient Block Mode Detection Algorithm for Scalable Video Coding using Probability Model
Authors: Balaji L. , Thyagharajan K.K. , Dhanalakshmi A.
Published: May 2015

H.264 / AVC expansion is H.264 / SVC which is applicable in environments that demand video streaming. This paper delivers an algorithm to shorten computational complexity and extend coding efficiency by determining the mode speedily. In this writing, the authors talk a fast mode resolution algorithm with less complexity unlikely the traditional joint scalable video model (JSVM). Their algorithm end mode hunt by a probability model defined. This model is address for both intra-mode and inter-mode predictions of base layer and enhancement layers in a macro block (MB). The estimated rate distortion cost (RDC) for modes among layers is custom to determine the best mode of each MB. The experimental results show that the authors' algorithm realizes 26.9% of encoding time when compared with the JSVM reference software with smallest reduction in peak signal to noise ratio (PSNR).
Editorial Vol.13(2)
Authors: De Silva D.A.M.
Published: May 2015

This is both an exciting and a challenging point in history for taking up editorship of the multidisciplinary Journal, recognized as Sabaragamuwa University Journal. We are living through a new era of accountability in the research, and the journal serves to publish wide variety of research publications of both local as well as foreign researchers.First article brings the reader towards to the classical literature, the paper based on Ru Freeman’s A Disobedient Girl. Current issue provides the platform to publish research work on Chronic Kidney Disease (CKD) in Sri Lanka. The article strengthen with current research evidence and will cater the demands of researchers engaged in CKD. Further, Journal provides the space to publish the research on biotechnology, and the article address the issue of seed treatments to increase germinability of Cardamom (Elettaria cardamomum). Final paper focuses on policy issues and the paper addresses the government SME programmes.Sabaragamuwa University Journal with its multidisciplinary nature cater the demands of wider audience as well as the forum to publish the research work of diverse group of researchers. I would like to express my deepest appreciation to all those who provided me the possibility to complete this issue. Special thanks goes to Mr. Prasad C. Iddamalgoda for his generous support on preparation of final layout of the journal and the facilitation of Center for the Research and Knowledge Dissemination (CRKD).Sabaragamuwa University Journal Vol.13(2) December 2014
Being black in a white skin: Beliefs and stereotypes around albinism at a South African university
Authors: Phatoli Relebohile , Bila Nontembeko , Ross Eleanor
Published: May 2015

Background: Partly because of the legacy of apartheid, and despite being a constitutional democracy, South Africa continues to be a deeply divided society, particularly along racial lines. In this context many people with albinism do not fit neatly into black and white categories and are likely to experience social discrimination and marginalisation.Objectives: The study endeavoured to explore the beliefs and practices regarding albinism within a South African university, and the availability of support services. Method: The research was located within an interpretive qualitative paradigm and was framed within the theories of stigma, discrimination and ‘othering’. Interviews were conducted with five students with albinism and 10 students without albinism. Results: Findings confirmed the existence of myths and stereotypes regarding albinism. Students with albinism tended to exclude themselves from the rest of the student community to avoid discrimination and stereotypes around their condition. Conclusion: People with albinism can teach us about social constructions of race, colour and relations between minority groups and the majority culture. Results have implications for schools, disability units at universities, and albinism societies in terms of opening up channels of communication between people with albinism and the general public and fostering knowledge and awareness thereof.
Men battering as the new form of domestic violence? A pastoral care perspective from the Kenyan context
Authors: Gathogo Julius
Published: May 2015

The article sets out to show that gender-based violence is no longer restricted to ‘women by men’. Rather society must appreciate that gender battering is a reality across the gender divide, particularly in the 21st century Africa. In its methodology, the article has engaged a theo-philosophical approach that involves a social, religious, and a cultural analytical approach. The materials are gathered primarily after interviewing the staff and students from Kenyatta University, Mombasa Campus, and some selected people from the campus surroundings who were consulted orally. To this end, a questionnaire was released in June and July 2012 where about 200 respondents from across the various counties of Kenya were called upon to shed light on men battering in Kenya. In particular, some of the questions that were posed included: Has battering of men by women been part of our African societies from ancient times or is it a new phenomenon? Statistically, who are battered more men or women? How does domestic violence against men manifest itself? What causes it? Why does it sound new to our society? What can we do about it? The article rests on the premise that even though battering of women is more explicit, men battering by women, which takes many forms, has been there for quite some time, albeit unreported. By taking a holistic approach hence ‘collective responsibility’ across the gender divide, the society can be healed from all forms of gender-based violence.
Outobiografie as hermeneutiek van die self: Van Rousseau tot Le Clézio
Authors: Snyman Elisabeth
Published: May 2015

Autobiography as hermeneutics of the self, from Rousseau to Le Clézio. This article investigates the hypothesis that autobiography can be regarded as a type of hermeneutics of the self. In order to achieve this, a selection of French autobiographical texts was analysed. As this study is a reworked version of an inaugural lecture, it presents an overview rather than a detailed analysis of the theories or the texts it refers to. Jean-Jacques Rousseau’s Confessions, generally regarded as a cornerstone of modern autobiography, was used as a point of departure for the interpretation of operations of understanding at work in autobiographical texts. The article demonstrates how the writers of the rest of the corpus of texts question Rousseau’s historical model in different ways according to more recent concepts of the self. Thus it is argued that George Perec replaces the historical model of understanding with an approach based on deciphering signs from the past; that Nathalie Sarraute combines the New Novel’s concept of the divided subject with that of tropismes in order to give a truthful representation of her childhood; and that Roland Barthes problematises the notion of language as a medium of expression of subjectivity in his ‘anti-outobiography’. This study furthermore demonstrates how Marguerite Yourcenar breaks with the anthropomorphism associated with humanism to pave the way for the realisation that the presence of the Other profoundly determines the understanding of the self. Finally, the ethics of dealing with the Other in intercultural encounters, as recorded in Ken Bugul and Jean-Marie Le Clézio’s autobiographies, is examined. The article shows how, from the 18th century onwards, literary and philosophical trends influenced the act of understanding and interpreting the individual existence and hence the nature of autobiography.
Painful snapping hip owing to bifid iliopsoas tendon and concurrent labral tear
Authors: Thompson Graeme
Published: May 2015

A case of internal snapping hip owing to a bifid iliopsoas tendon is described with a concurrent labral tear in a young active female. The labral tear was identified on magnetic resonance imaging, and the snapping bifid tendon on dynamic ultrasound. The patient was administered bupivicaine and steroid around the tendon and symptoms resolved. A snapping bifid tendon must be identified pre-operatively to avoid incomplete release. Labral repair may be accompanied by psoas release when psoas impingement is suspected owing to a labral tear at the 3 o’clock position in an otherwise normal hip.
The SL(2, C) Casson Invariant for Knots and the Â-polynomial
Authors: Boden Hans U. , Curtis Cynthia L.
Published: May 2015

In this paper, we extend the definition of the SL(2,ℂ) Casson invariant to arbitrary knots K in integral homology 3-spheres and relate it to the m-degree of the Â-polynomial of K. We prove a product formula for the Â-polynomial of the connected sum K1#K2 of two knots in S3 and deduce additivity of the SL(2,ℂ) Casson knot invariant under connected sums for a large class of knots in S3. We also present an example of a nontrivial knot K in S3 with trivial Â-polynomial and trivial SL(2,ℂ) Casson knot invariant, showing that neither of these invariants detect the unknot.
Use of Intralesional Bleomycin for Oral Hemangioma of Sturge-Weber Syndrome
Authors: Shinde Devayani , Dabholkar Yogesh G , Saberwal Akanksha A , Velankar Haritosh Kamalakar , Shetty Adip K
Published: May 2015

Sturge-Weber syndrome (SWS) or encephalotrigeminal angiomatosis is a rare neurocutaneous disorder characterized with vascular malformations and capillary venous angiomas involving the face, choroid of the eye and leptomeninges with port wine stain, seizures activity and mental retardation. In this paper we report a case of a patient affected by Sturge-Weber syndrome presenting with tongue hemangioma and emphasize the importance of an accurate diagnosis and management in the clinical practice.

How to cite this article

Shinde D, Dabholkar YG, Saberwal AA, Velankar HK, Shetty AK. Use of Intralesional Bleomycin for Oral Hemangioma of Sturge-Weber Syndrome. Int J Head Neck Surg 2015;6(1):17-19.
Castleman's Disease: An Orphan Lymphoproliferative Disorder
Authors: Shah Pratik Dipak , Mukherji Srijon , Chauhan Yogendra
Published: May 2015

Castleman's disease (CD) is a rare, benign disease of unknown cause that induces reactive lymph node hyperplasia. The disease was first defined by Dr Benjamin Castleman. It is an unusual cause of a neck mass. The goal of this paper is to report a rare case of Castleman's disease at unusual site (level IB) and discuss its management.

How to cite this article

Shah PD, Chauhan Y, Mukherji s. Castleman's Disease: An Orphan Lymphoproliferative Disorder. Int J Head Neck Surg 2015;6(1):20-22.
A Giant Pleomorphic Adenoma of the Palatine Arch in a 75-Year-Old Man: A Case Report with Review of Literature
Authors: Swain Santosh Kumar , Sahu Mahesh Chandra , Tripathy Rajashree
Published: May 2015

Pleomorphic adenoma (PA) is the most common benign tumor of the salivary glands and has both epithelial and mesenchymal tissues. It most commonly arises from the parotid or submandibular glands. Rarely, it arises from the minor salivary glands. We report here a case of pleomorphic adenoma arising from the soft palate and both sides of anterior tonsillar pillars in a 75-year-old man. This patient was presenting painless slow growing large swelling in the soft palate over 20 years causing mechanical obstruction of airway and food. The entire tumor mass was excised along with overlying mucosa.

How to cite this article

Swain SK, Sahu MC, Tripathy R. A Giant Pleomorphic Adenoma of the Palatine Arch in a 75-Year-Old Man: A Case Report with Review of Literature. Int J Head Neck Surg 2015;6(1):23-25.
Oral Commissure Defect Reconstruction with Modified Biflanged Submental Artery Island Flap
Authors: Mathai Anju , Balasubramanian Satheesan
Published: May 2015

Reconstruction of defects in the commissure region with buccal and lip defects is difficult to reconstruct with regional flap. A case report of a case reconstructed with a new design of the submental flap is described with its advantages.

How to cite this article

Mathai A, Balasubramanian S, Babu S. Oral Commissure Defect Reconstruction with Modified Biflanged Submental Artery Island Flap. Int J Head Neck Surg 2015;6(1):38-40.
Lingual Hematoma: A Rare Cause of Upper Airway Obstruction
Authors: Costa Eurico , Estibeiro Hugo , Magalhães Miguel
Published: May 2015

Introduction

The authors present a case report of a patient with a lingual hematoma treated in the otolaryngology department of portuguese institute of oncology, lisbon, followed by a brief literature review.

Case report

A case of a 43 years old female with a diagnosis of acute lymphoblastic leukemia since 2007, submitted to allograft bone marrow transplantation in 2008 at the Portuguese Oncology Institute, Lisbon. With diagnosis of recurrence since May 2011, she was hospitalized in october 2011, due to a lower gastrointestinal bleeding in the context of a cytomegalovirus colitis associated with pancytopenia. During hospitalization, the patient experienced a tonicclonic seizure. less than 12 hours after this episode, the patient developed a massive lingual hematoma. Despite exuberant macroglossia and tongue proptosis, the patient showed no signs of active bleeding or severe dyspnea and was submitted to conservative medical treatment.

Discussion

Lingual hematoma has many causes, being trauma and hemorrhagic dyscrasias among the most frequent. The first therapeutic objective should be evaluated and gua ranted upper airway patency. once the airway is secured, hemorrhage and hematoma should be treated according to its etiology. This can be achieved with conservative medical therapy, intervention radiology or surgery.

Conclusion

Lingual hematoma is as rare as potentially fatal. prompt recognition and management is critical for a favorable outcome.

How to cite this article

Costa E, Estibeiro H, Magalhães M. Lingual Hematoma: A Rare Cause of Upper Airway Obstruction. Int J Head Neck Surg 2015;6(1):41-44.
Odontogenic Infections: A 1-year Retrospective Study
Authors: Mahmoodi Benjamin , Weusmann Jens , Azaripour Adriano , Braun Benedikt , Walter Christian , Willershausen Brita
Published: May 2015

Objectives

The purpose of this study was to analyze the prevalence, demographic patterns and management of odontogenic infections in patients undergoing treatment in an outpatient dental emergency service of a university hospital.

Materials and methods

In a retrospective study of the year 2012, all patients suffering from odontogenic infections were included. Demographic data, diagnosis and the conducted treatment were analyzed. Odontogenic infections were defined as pulpitis, apical and marginal periodontitis, abscesses and pericoronitis.

Results

A total of 2,058 out of 4,209 emergency patients suffered from odontogenic infections. The majority (45.0%) had an apical periodontitis, 20.8% abscesses, 17.3% a marginal periodontitis, 16.3% a pulpitis and 5.8% a pericoronitis. Mean age was 37.5 ± 17.0 years standard deviation (SD) (1.2-96.4). Most patients were 20 to 29 years (24.6%), followed by the age group of 30 to 39 year old patients (21.0%). Males were affected more frequently (55.5%) than females (45.5%). Most of the patients (64.5%) of the patients received a dental or surgical treatment. Antibiotics were prescribed in 31.7% of cases. Amoxicillin was the most common prescribed antibiotic (54.5%).

Conclusion

Odontogenic infections represent one of the main reasons for consulting the emergency service. Due to the high number of cases and the severe complications, dentists have to be familiar with the surgical management of odontogenic infections as well as the appropriate use of antibiotics.

Clinical significance

Nearly half of all patients who sought, treatment in the emergency service had an odontogenic infectious disease. This should be considered for the organization and planning of the service.

How to cite this article

Mahmoodi B, Weusmann J, Azaripour A, Braun B, Walter C, Willershausen B. Odontogenic Infections: A 1-year Retrospective Study. J Contemp Dent Pract 2015;16(4):253-258.
Semidirect Restorations in Multidisciplinary Treatment: Viable Option for Children and Teenagers
Authors: Tonetto Mateus Rodrigues , Kuga Milton Carlos , Frizzera Fausto , Bandeca Matheus Coelho , Bhandi Shilpa H , Pinzan-Vercelino Célia Regina Maio , da Silva Monica Barros , Pereira Kamila Figueiredo
Published: May 2015

Due to the esthetic necessity required nowadays, the multidisciplinar treatment became a fundamental step in the restoration success. When the patient exhibits dental agenesis of one or more elements, he can show difficulty in social interactions. The age of the patient is a limiting factor to esthetic procedures, however, it should be evaluated as a real indicative with each case. The utilization of semi-direct restorations is a viable option due the cost, esthetic and improvement of physical and mechanical properties. The purpose of this paper is to present a case detailing the confection and cementation of anterior semi-direct restorations aimed at an anatomic reestablishment associated with integrated treatment with periodontics and orthodontics.

How to cite this article

Tonetto MR, Frizzera F, da Silva MB, Bhandi SH, Kuga MC, Pereira KF, Pinzan-Vercelino CRM, Bandéca MC. Semidirect Restorations in Multidisciplinary Treatment: Viable Option for Children and Teenagers. J Contemp Dent Pract 2015;16(4):280-283.
Finite Element Analysis of the Endodontically-treated Maxillary Premolars restored with Composite Resin along with Glass Fiber Insertion in Various Positions
Authors: Navimipour Elmira Jafari , Mirhashemi Fatemeh Sadat
Published: May 2015

Aim

This study evaluated the effect of three methods of glass fiber insertion on stress distribution pattern and cusp movement of the root-filled maxillary premolars using finite element method (FEM) analysis.

Materials and methods

A three-dimensional (3D) FEM model of a sound upper premolar tooth and four models of root-filled upper premolars with mesiocclusodistal (MOD) cavities were molded and restored with: (1) Composite resin only (NF); (2) Composite resin along with a ribbon of glass fiber placed in the occlusal third (OF); (3) Composite resin along with a ribbon of glass fiber placed circumferentially in the cervical third (CF), and (4) Composite resin along with occlusal and circumferential fibers (OCF). A static vertical load was applied to calculate the stress distributions. Structural analysis program by Solidworks were used for FEM analysis. Von-Mises stress values and cusp movements induced by occlusal loading were evaluated.

Results

Maximum Von-Mises stress of enamel occurred in sound tooth, followed by NF, CF, OF and OCF. Maximum Von- Mises stress of dentin occurred in sound tooth, followed by OF, OCF, CF and NF. Stress distribution patterns of OF and OCF were similar. Maximum overall stress values were concentrated in NF. Although stress distribution patterns of NF and CF were found as similar, CF showed lower stress values. Palatal cusp movement was more than buccal cusp in all of the models.

Conclusion

The results of our study indicated that while the circumferential fiber had little effect on overall stress concentration, it provided a more favorable stress distribution pattern in cervical region. The occlusal fiber reduced the average stress in the entire structure but did not reduce cuspal movement.

Clinical significance

Incorporating glass fiber in composite restorations may alter the stress state within the structure depending on fiber position.

How to cite this article

Navimipour EJ, Firouzmandi M, Mirhashemi FS. Finite Element Analysis of the Endodonticallytreated Maxillary Premolars restored with Composite Resin along with Glass Fiber Insertion in Various Positions. J Contemp Dent Pract 2015;16(4):284-290.
Influence of Different Enamel Shades and Thickness on Chroma and Value of Dentin Vita Shade: An in vitro Comparative Assessment Study
Authors: Meena N , Mehta Deepak , Hajira Noor Saira Wajid Najma , Ashwini P , Usha HL
Published: May 2015

Background

The aim of the present study is to determine the influence of different enamel shades of various thickness on chroma and value of vita shade of dentin.

Materials and methods

Three enamel composite resin shades (Enamel white, grey and neutral) and one dentin shade (A2) from Amelogen Plus (Ultradent) was used. Ninety Enamel disk specimens of 0.5, 0.75 and 1 mm thickness and 10 mm in diameter for each shade and 90 dentin disk specimens of 2 mm in thickness and 10 mm in diameter was used for the study. The spectrophotometric values of the dentin shade with and without enamel specimens were recorded and the values were converted to CIE L*a*b values.

Results

Statistical analysis was done using Pearson correlation coefficients to verify the effect of thickness on Chroma and value, and the significance was evaluated by one-way ANOVA and Tukey post hoc test. Two way ANOVA and Tukey post hoc was done to verify the variation within the groups. Results revealed a significant positive correlation between thickness and chroma and a negative correlation between thickness and value. There was a statistically significant variation in between the groups.

Conclusion

All groups produced a significant increase in chroma with increase in thickness of enamel shade upto a thickness of 0.75 mm after which the behavior of each shade was erratic. Hence, the optimum thickness would be 0.75 mm. All groups produced a significant decrease in value with increase in thickness of enamel shade. Enamel white produced the greatest reduction in value, enamel neutral the least and enamel grey demonstrated an intermediate result.

Clinical significance

There is a need to have a knowledge of the effect on chroma and value when dentin is layered with different enamel shades, it is also important to understand the effect of these enamel shades at different thicknesses to better control the color and reproduce esthetic simulating natural teeth.

How to cite this article

Hajira NSWN, Mehta D, Ashwini P, Meena N, Usha HL. Influence of Different Enamel Shades and Thickness on Chroma and Value of Dentin Vita Shade: An in vitro Comparative Assessment Study. J Contemp Dent Pract 2015;16(4):304-309.
Multiple Second Primary Oral Squamous Cell Carcinomas in a Nonsmoker and Nondrinker Woman: Case Report and Review of the Literature
Authors: de Sousa Lopes Maria Luiza Diniz , de Aquino Ana Rafaela Luz , de Arruda Morais Maria de Lourdes Silva , de Medeiros Lélia Bristo , da Silveira Éricka Janine Dantas
Published: May 2015

Aim

This manuscript aims to describe an unusual case of multiple second primary squamous cell carcinomas (SCCs) in several sites of the oral mucosa in a nonsmoker and nondrinker woman and to discuss the diagnostic criteria, clinicopathological aspects and outcome of second primary tumor (SPT).

Background

Patients treated for SCC of the head and neck are at high risk for developing SPT arising from the same dysplastic mucosal field. Currently, there is no reliable method to predict which of the patients will develop SPT.

Case description

A 64-year-old nonsmoker and nondrinker woman developed several second primary oral SCCs in 7 years of follow-up, most of them being synchronic, treated by surgery without and with chemotherapy and radiotherapy.

Conclusion

Patients treated for SCC require a long-term and careful follow-up as the development of SPT contributes with significantly negative impact on the prognosis.

Clinical significance

This report describes the diagnosis and management of a very unusual case of several SPTs affecting different sites of the oral mucosa in the same patient. Moreover, the patient had no apparent risk factors associated with the development of the oral cancer. Therefore, a brief update concerning SPT and its diagnosis and management is also provided.

How to cite this article

de Sousa Lopes MLD, de Aquino ARL, de Arruda Morais MLS, de Medeiros LB, da Silveira EJD. Multiple Second Primary Oral Squamous Cell Carcinomas in a Nonsmoker and Nondrinker Woman: Case Report and Review of the Literature. J Contemp Dent Pract 2015;16(4):322-328.
Multidisciplinary Treatment of a Fenestration-type Defect
Authors: Bandéca Matheus Coelho , Bhandi Shilpa H , da Silva Monica Barros , Travassos Rafael , Soares Bruno , Mouchrek José Carlos Elias , da Silva Vanessa Camila , Benatti Bruno Braga
Published: May 2015

The case report aimed at treating a fenestration-type defect with multidisciplinary conventional and advanced surgical techniques. Fenestrations are isolated areas in which the exposed root surface is covered only by the periosteum and gingiva, but the remaining cortical bone remains intact. Root coverage is indicated in cases of root hypersensitivity, treatment of shallow caries lesions, cervical abrasions, and esthetic and cosmetic needs. In this case report, after proper hygiene instruction and dental biofilm control, a fenestration-type defect was treated using guided tissue regeneration (anorganic bovine matrix and resorbable membrane) and a connective tissue grafts, associated to an endodontic apicoectomy. After reevaluation, the remaining gingival recession was treated with a second gingival connective tissue graft covered with q double papillae type in order to reconstruct the periodontal tissues of the involved tooth. In this clinical case, the interaction between the different areas of dentistry has made it possible to correct a fenestration-type defect, following procedures based on scientific evidence, restoring periodontal health, esthetics, self-esteem, and meeting the patient's expectations regarding her initial complaint. This case report shows the important role of interdisciplinary approach to treating a patient with a complex periodontal defect that required different types of knowledge and abilities to achieve the best results based on the current status of dentistry possibilities.

How to cite this article

Travassos R, Soares B, Bhandi SH, da Silva MB, Bandéca MC, Mouchrek Jr JCE, da Silva VC, Benatti BB. Multidisciplinary Treatment of a Fenestration-type Defect. J Contemp Dent Pract 2015;16(4):329-334.
Simultaneous monitoring of stable oxygen isotope composition in water vapour and precipitation over the central Tibetan Plateau
Authors: Yu W. , Tian L. , Ma Y. , Xu B. , Qu D.
Published: May 2015

Abstract. This study investigated the daily δ18O variations of water vapour (δ18Ov) and precipitation (δ18Op) simultaneously at Nagqu on the central Tibetan Plateau for the first time. The data show that the δ18O tendencies of water vapour coincide strongly with those of associated precipitation. The δ18O values of water vapour affect those of precipitation not only on the same day, but also for the following several days. In turn, the δ18O values of precipitation also affect those of water vapour. Hence, there exists an interaction between δ18Ov and δ18Op, and the interaction decreases gradually with time. During the entire sampling period, the variations of δ18Ov and δ18Op at Nagqu did not appear dependent on temperature, but did seem significantly dependent on the joint contributions of relative humidity, surface pressure, and precipitation amount. In addition, the δ18O changes in water vapour and precipitation can be used to diagnose different atmospheric trajectories, especially the influences of the Indian monsoon and convection. Moreover, intense activities of the Indian monsoon and convection may cause the enrichment of δ18Op relative to δ18Ov at Nagqu (on the central Tibetan Plateau) to differ from that at other stations on the northern Tibetan Plateau. These results indicate that the effects of different moisture sources, including the Indian monsoon and convection currents, need be considered when attempting to interpret paleoclimatic records on the central Tibetan Plateau.