bluuebunny/crossref_metadata_2025 huggingface dataset:
3D sensors in critical infrastructure
Authors: Miroslav Marcanik , Michal Sustek , Roman Jasek
Published: October 2018

The danger of terrorism is a result of the increased risk of critical infrastructure. We will focus on enumerating each area then listing of possible real uses in security and protection and finally we will focus in the list of used 3D sensors (in practice focused mainly on the use of laser scanning of space, camera sensing and subsequent transfer to cyberspace or scanning with infrared sensors).
Computer Application for Simulation of Temperature Distribution Inside the Room
Authors: Charvátová Hana , Zálešák Martin
Published: October 2018

The paper deals with computer testing of the temperature distribution in buildings by using COMSOL Multiphysics software. It is devoted to a description of a computer application created in the Application Builder user interface for simulation of the temperature distribution in a room heated by two heat sources. The application allows you to change geometric dimensions of all elements of the studied model and their spatial distribution, as well as a choice of physical properties needed to access the distribution of temperature in the room depending on the ambient temperature and the heat input of the considered sources. Main functions of the application are presented by simulation of cyclic heating and cooling of the tested room.
Evaluation of cooling ceilings with application of PCMs at specialized laboratory
Authors: Sehnalek Stanislav , Kolacek Martin
Published: October 2018

In this article is covered measurements of radiant cooling ceilings (RCC) in Laboratory of Environmental Engineering at Faculty of applied informatics under Tomas Bata University in Zlin. This laboratory performing standardized tests of special HVAC equipments. Article validate measurements on newly made customization of laboratory for measurements of such RCC. Measurement was performed on RCC with application of PCMs material. This RCC was specially developed for purposes of validation and made in two dimensions. Specific application of PCMs allows achieving recovery of accumulation media in multiple cycles during one day. Outline of newly made RCC is described followed up by detail of set-up of experiment. In article is estimate cooling capacity of used RCC with applied PCMs. Discontinuous cooling cycles is covered as well with description of measured data.
Customization of laboratory for radiant cooling ceiling measurements
Authors: Sehnalek Stanislav , Kolacek Martin
Published: October 2018

In this article is examine Laboratory of Environmental Engineering at Faculty of applied informatics under Tomas Bata University in Zlin. This laboratory is performing standardized test of special HVAC equipments. This article describes newly made customization for measuring radiant cooling ceilings. Firstly is described previous situation which is concluded by necessary changes. It is mentioned energy supplies and newly made connection for cooling ceilings. Whole article is sum up by description of samples on which would be done verification of measurement space and methodology.
Modeling of distributed file System in big data storage by event- B
Authors: Ali Ammar Alhaj , Varacha Pavel , Krayem Said , Jasek Roman , Zacek Petr , Chramcov Bronislav
Published: October 2018

Nowadays, a wide set of systems and application, especially in high performance computing, depends on distributed environments to process and analyses huge amounts of data. As we know, the amount of data increases enormously, and the goal to provide and develop efficient, scalable and reliable storage solutions has become one of the major issue for scientific computing. The storage solution used by big data systems is Distributed File Systems (DFSs), where DFS is used to build a hierarchical and unified view of multiple file servers and shares on the network. In this paper we will offer Hadoop Distributed File System (HDFS) as DFS in big data systems and we will present an Event-B as formal method that can be used in modeling, where Event-B is a mature formal method which has been widely used in a number of industry projects in a number of domains, such as automotive, transportation, space, business information, medical device and so on, And will propose using the Rodin as modeling tool for Event-B, which integrates modeling and proving as well as the Rodin platform is open source, so it supports a large number of plug-in tools.
Integration of yield factor expression into Haldane’s model for substrate inhibition.
Authors: Beltrán-Prieto Juan Carlos , Nguyen Long Huynh Bach Son
Published: October 2018

Haldane equation is a mathematical expression that has been widely used in growth kinetics to give a proper fit to experimental data in case of substrate inhibition during enzymatic processes. It determines the specific growth rate of a microorganism based on the substrate concentration, the half saturation constant, the inhibitory constant and the maximum growth rate achievable. However, for practical and experimental design purposes it is important to describe Haldane equation in terms of the initial concentration of substrate, since this information is required to know the proper amount of initial substrate to be used. For this reason, in the present paper we proposed to integrate the expression of yield factor and the definition of specific growth rate in a batch system into Haldane’s equation and to solve analytically the mathematical equations in order to obtain a final expression that correlates the maximum growth rate, the limiting nutrient concentration at which the specific growth is half its maximum value, the inhibitory constant, the initial concentration of substrate and the initial amount of biomass required in time. Accordingly, simulation and numerical studies are presented to analyze and discuss the importance of the obtained model.
Application of Crowdsourcing to Generate Datasets of Public Procurement Processes
Authors: Rey Andrés , Gomez Luis , Lozada Angel
Published: October 2018

In order to fight against Corruption, there are currently laws of free access to public information that favor transparency in many countries. In this opening scenario, information and communication technologies play an important role in facilitating the delivery of information that is made available to citizens seeking to enable greater control over the actions of government and civil servants. Nevertheless, in many cases, the information provided is aimed at human reading and interpretation and it is not published in machine-processable formats, a condition that hinders automatic processing using state-of-the-art computational techniques. This article presents a new method of data collection based on Crowdsourcing that allows generating data sets of public procurement processes from the unstructured information published on the Web. The results obtained show that our method allows the generation of reliable public procurement data sets in a scalable way whose scope is limited by the availability of data and the transparency of the country.
Analysis, Mathematical Model and Selected Simulation Research of the GNSS Navigation Receiver Correlator
Authors: Setlak Lucjan , Kowalik Rafał
Published: October 2018

The article presents a mathematical model describing the physical phenomena occurring in the GNSS radio receiver. The main subunit which focused attention was the system of GNSS receiver correlator. The process of tracking and acquiring navigation signals processed in a navigational radio receiver was analyzed in a special way. Bearing in mind that all kinds of noise and interference get through to the signals processed in the receiver, the article attempts to develop a mathematical model of the signal reaching the receiver with noise and an inappropriate signal. On the basis of the mathematical model developed, the courses of acquisition and tracking processes of SIS signals in the presence of noise and interference signal in the form of a narrow and broadband signal are presented. The final part the paper presents the results of computer simulations. Although the results presented in the paper refer to a specific GNSS receiver, they may differ depending on the types of radio navigation devices.
Nonlinear analysis of gravitational wave signals based on recurrence quantification analysis
Authors: Fan Zhenyan , Chen Qianqian , Sun Guiqi , Mastorakis Nikos , Zhuang Xiaodong
Published: October 2018

Recurrence plot and recurrence quantification analysis are used to analyze different features of gravitational wave signals. Firstly, the appropriate delay time and embedding dimension are respectively estimated by methods of the C_C method. One dimension time series of gravitational wave is extended to high dimension phase space by employing phase space reconstruction for studying the movement characteristic of neighboring points in time series. Then the recurrence plots of different gravitational wave signals are implemented intuitively and qualitatively analyzing different features of gravitational wave signals. Different nonlinear characteristic parameters are calculated by recurrence quantification analysis (RQA) methods, such as recurrence rate, recurrence entropy, determinism rate and stratification, based on which the features of different gravitational wave signals can be well analyzed quantitatively.
Intelligent and communicating real-time diagnostics for the fight against the Fire Compartments.
Authors: Patte-Rouland B. , Betting B. , Lebey M. , Varea E.
Published: October 2018

This results aims to improve the effectiveness of security systems by optimizing the interaction between technological components and organizational and human intervention. Objectives are to determine the specific laws governing indoor fire phenomena by means of experimental full-scale and numerical approaches, to get real-time information about the fire during operations. A second phase consists in a transformation of the usual passive-safety systems into intelligent and communicating systems, thereby optimizing and securing the human and organizational emergency response. The dual competence numerical /experimental data is essential in this type of study since the experimental data suffer from a lack of resolution (spatial, temporal) but nevertheless represent information necessary for validating the codes.
Évaluation quadriennale des programmes d’ETP en Île-de-France : un moyen de pilotage régional
Authors: Margat Aurore , Giacopelli Maud , Hemon Yann , Lombrail Pierre , Gagnayre Rémi
Published: October 2018

Introduction :Dans le cadre de la première évaluation quadriennale des programmes d’Éducation Thérapeutique du Patient (ETP) en Île-de-France, l’agence régionale de santé d’Île-de-France a marqué sa volonté de décrire et d’analyser l’offre des programmes d’ETP initialement autorisés entre 2010 et début 2011.Méthode :L’étude s’est déroulé en deux temps à partir d’une démarche méthodologique mixte selon un design explicatif afin d’approfondir et expliquer les premiers résultats quantitatifs (obtenus par un traitement statistique des résultats au moyen de pourcentages) par des données qualitatives (à partir de focus groups).Résultats : Sur les 600 programmes franciliens autorisés entre 2010 et début 2011, 515 programmes ont été reconduits avec seulement 10 % d’arrêts après 4 ans. On constate une augmentation régulière du nombre de patients inclus dans les programmes d’ETP. L’offre est centrée sur Paris et la petite couronne par le simple fait que l’AP-HP est le principal promoteur de programmes. Trois quarts des programmes sont portés par des centres hospitaliers et seulement 18 % d’entre eux sont proposés en dehors. L’étude a confirmé le caractère multi professionnel et interdisciplinaire des programmes. Le soutien et la formation des équipes à l’évaluation des programmes d’ETP apparaissent comme une nécessité pour ces dernières.Discussion :L’investissement des acteurs de l’ETP est incontestable, tant par le nombre et la variété des programmes, les files actives de patients éduqués, que par la quantité de personnels mobilisés. Néanmoins, d’ETP est encore loin d’être homogène et équitablement répartie entre pathologies, les publics bénéficiaires, les territoires et les structures de soins. Ainsi, une telle étude questionne plus largement l’intégration de l’ETP dans une stratégie d’amélioration de la qualité de la prise en charge des maladies chroniques.
Associations of the Force-velocity Profile with Isometric Strength and Neuromuscular Factors
Authors: Morales-Artacho Antonio , Ramos Amador , Pérez-Castilla Alejandro , Padial Paulino , Argüelles-Cienfuegos Javier , de la Fuente Blanca , Feriche Belen
Published: October 2018

We aimed to explore relationships between the force-velocity (FV) profile and the isometric muscle torque performance during a knee extension task. The FV profile (force-intercept [F0], velocity-intercept [V0], maximum power [Pmax], and FV slope) during the countermovement jump (CMJ) exercise and isometric maximum voluntary torque (MVIC) and explosive voluntary torque production were assessed in 43 participants. Electromyography (EMG) was recorded during the isometric assessments and resting muscle architecture measurements were also performed (quadriceps thickness, vastus lateralis pennation angle and fascicle length). Pearson’s correlation coefficients were computed to assess bivariate relationships between the FV profile, isometric torque, EMG activation and muscle architecture. F0 predictions from neuromuscular measurements were assessed through multiple linear regression. Associations of F0 and Pmax with isometric torque increased from explosive to MVIC torque (r≥0.47; P<0.05). Significant associations were found between muscle architecture and F0 and Pmax (r≥0.69; P<0.05), while V0 and FV slope were unrelated (r≤0.27; P>0.05). Quadriceps thickness and VL pennation angle explained ~62% of F0 variance. In conclusion, the knee extensors maximal isometric strength and their morphological architecture are strongly related to F0 estimated from a CMJ FV profile test.
Assessment of the OPS Code 8918 Multimodal Pain Therapy
Authors: Schwarze Martin , Hollo Dierk , Schiltenwolf Marcus
Published: October 2018

Interdisziplinäre multimodale Schmerztherapie ist der Goldstandard in der Therapie chronischer Schmerzen. Aufgrund insgesamt steigender Fallzahlen steigt auch die Zahl an MDK-Prüfungen, die zu der Beurteilung primärer Fehlbelegung kommen. Hieraus resultieren eine Vielzahl sozialgerichtlicher Auseinandersetzungen, in denen medizinische Sachverständigengutachten angefordert werden. Unter Kenntnis der juristischen Normen und relevanten Leitlinien bzw. sonstigen Empfehlungen kann der Gutachter sich Schritt für Schritt dieser Thematik stellen. Beginnend steht hierbei die Auswertung der Patientenakte, gefolgt von der Prüfung der ärztlichen Indikationsstellung, der Therapiedurchführung und abschließend der Beantwortung der Beweisfragen. Ein an das Konzept von Schröter angelehntes Prüfschema kann diesen Vorgang weiter vereinfachen.
Men’s Participation and Performance in the Boston Marathon from 1897 to 2017
Authors: Knechtle Beat , Di Gangi Stefania , Rüst Christoph , Rosemann Thomas , Nikolaidis Pantelis
Published: October 2018

This study examined men’s participation and performance in the Boston Marathon. Data from all 368,940 official male finishers in the Boston Marathon from 1897 through 2017 were analyzed using different analyses and regression models for all runners, annual top hundred finishers, annual top ten finishers and annual winners. Effect of calendar year on race time was examined alone, in a uni-variable model, and together with country of origin and weather conditions (average air temperature and precipitation) in a multi-variable model. The mean race time of all finishers increased across calendar years, in line with the participation, but it decreased when we considered the annual winners, 10 and 100 fastest. Kenyans and Ethiopians were the fastest nationalities (p<0.001) when we considered all finishers and the annual top 100 fastest but not when the annual 10 fastest were considered. Air temperature≤8 °C improved (p<0.001) race times compared to air temperature>8°C. Precipitation (>0 mm) improved performance for the annual 100 fastest and annual 10 fastest (p=0.013–0.031) but not for all finishers. Our findings improved the knowledge about the evolution of male marathoners across calendar years, considering as main effects country of origin and particular weather conditions.
The Directed ortho Metalation (DoM)–Cross-Coupling Connection: Synthesis of Polyfunctional Biaryls
Authors: Snieckus Victor , Quesnelle Claude
Published: October 2018

A comparative evaluation of the combined directed ortho metalation (DoM)–Suzuki–Miyaura and DoM–Negishi cross-coupling reactions with aryl triflates for the synthesis of substituted biaryls is described. Both ortho-zinc and ortho-boron aryl directed metalation group (DMG = CON(i-Pr)2, OCONEt2, OMOM, NHBoc) substrates were evaluated. The superiority of the DoM–Negishi over the DoM–Suzuki–Miyaura reaction in operational convenience and mild reaction conditions is noted. Orthogonal Negishi and Suzuki–Miyaura with Corriu–Kumada reactions for the synthesis of a teraryl derivative is also reported.
Directed ortho Metalation (DoM)-Linked Corriu–Kumada, Negishi, and Suzuki–Miyaura Cross-Coupling Protocols: A Comparative Study
Authors: Snieckus Victor , Quesnelle Claude
Published: October 2018

A systematic study of the widely used, titled name reaction transition-metal-catalyzed cross-coupling reactions with attention to context with the directed ortho metalation (DoM) is reported. In general, the Suzuki–Miyaura and Negishi protocols show greater scope and better yields than the Corriu–Kumada variant, although the latter qualitatively proceeds at fastest rate but has low functional group tolerance. The Negishi process is shown to be useful for substrates with nucleophile and base-sensitive functionality and it is comparable to the Suzuki–Miyaura reaction in efficiency. The link of these cross-coupling reactions to the DoM strategy lends itself to the regioselective construction of diversely substituted aromatics and heteroaromatics.
Biological Actions, Electrical Conductance and Silicon-Containing Microparticles of Arsenicum Album Prepared in Plastic and Glass Vials
Authors: Dalboni Luciane , Coelho Cideli , Palombo Pedro Renata , Correia Michelle , de Santana Fabiana , Cardoso Thayná , Pinto Sandra , Alvares-Saraiva Anuska , Dutra-Correa Maristela , Peres Giovani , Holandino Carla , Rossi André , César Amarilys , Waisse Silvia , Bonamin Leoni
Published: October 2018

Introduction According to the “silica hypothesis” formulated to explain homeopathy, the information of starting materials would be transferred to cells by silica nanoparticles detached from the glassware walls by serial dilution and agitation through epitaxy. We compared the biological activity, electrical current and silicon microparticle content (by means of scanning electron microscopy/energy-dispersive X-ray spectroscopy) of high dilutions (HDs) of arsenic prepared in plastic and glass vials to investigate the role of silica in their biological effects in vitro.

Materials and Methods Co-cultures of macrophages and yeast (Saccharomyces cerevisiae) were treated with different HDs of arsenic prepared in plastic and glass vials. Macrophage morphology, phagocytosis index, nitric oxide (NO), and cytokine production were evaluated.

Results Measurable amounts of silicon microparticles were detected only in the HDs prepared in glass vials, but ultra-centrifugation eliminated them. Specific and non-specific results were observed. Non-specific pro-inflammatory effects were seen in all dilutions prepared in plastic vials, including elevation of pro-inflammatory cytokines, NO and macrophage phagocytic index. Only the 200th centesimal dilution of arsenic produced specific decrease in interleukin-6 production in macrophages, and it was independent of the vial type or the presence of microparticles of silica in the medicine samples. The nature of the vials had an impact on the electric flow in the respective fluids.

Conclusion The non-specific, pro-inflammatory effects might be attributed to organic residuals detached from the vials' plastic walls during manipulation. Instead, specific silica-independent effects of the homeopathic medicine can be attributed to the decrease of interleukin-6 after treatment with the 200th centesimal dilution of arsenic.
Pleomorphic Adenoma of Minor Salivary Gland in Buccal Mucosa: an Uncommon Finding
Authors: Ahuja Gourav , Marya Jaideep , Sood Poonam
Published: October 2018

Salivary gland tumors account for less than 3% of the head and neck tumors. Among various salivary gland tumors, pleomorphic adenoma is most common and accounts for 60- 70% of the benign tumors of salivary glands. However, the involvement of minor salivary glands of buccal mucosa is extremely uncommon and reported to be 4% only. Salivary glands may present with a diverse range of lesions presenting a challenge to even the most experienced clinician. We report two rare cases of pleomorphic adenoma of minor salivary glands of buccal mucosa in a 45 year old female and 70 years old male respectively. It includes clinical features, diagnosis and treatment of the tumor.
Management Of Mandibular Fracture in 5 Year Old Child : A Case Report
Authors: Dhawan Priyanka , Kaur Taranjot , Chachra Sanjay , Kaur Kamaljeet
Published: October 2018

Trauma induced maxillofacial injuries may affect function as well as estheticsin children. In hospitalized paediatric trauma patients, mandibular fractures are the most common. Boys are affected twice than girls. In children, management of mandibular fractures differ somewhat from that in adults. The objective of treatment is to restore the underlying bony architecture in a stable and non invasive fashion to pre injury position. Closed reduction method is preferred in most paediatric cases. This case report demonstrates the use of fabricated acrylic splint in the stabilization and fixation of a mandibular body fracture in a 5 yr old patient.
Periodontal Purview in the Management of Impacted Anterior Teeth: A Case Series
Authors: Arora Sachit , Kalra Shradha , Mavi Sunny , Gakhar Abhishek , Chhina Shivjot , Ahuja Annapurna
Published: October 2018

Impacted teeth present numerous problems to the patient. The management of such cases require a multidisciplinary approach. This case series describes the surgical and orthodontic management of 3 cases with impacted permanent anterior teeth. The paper briefly summarizes the etiology, complications etc, associated with the impacted teeth. It also discusses the different surgical treatment options for the exposure of impacted teeth i.e open and the closed technique. The cases were followed up for varied time period.
Efficacy Of Two NI-TI Retreatment Systems and Hand Files in Removing Gutta-Percha and Sealer From Root Canals Filled With Three Different Types of Sealers
Authors: Singh Rajender , Gupta Ashu , Sharma Vishal
Published: October 2018

Objectives: This study was undertaken to evaluate the efficiency of two rotary nickel titanium instruments and hand instrumentation in removing gutta-percha and sealer from root canals. Study design: – 63 extracted human single rooted premolars were instrumented with K-files and filled using lateral compaction of gutta-percha (GP) and three different sealers. The teeth were randomly divided into three experimental groups of 21 specimens each. Removal of gutta-percha was performed with R-Endo retreatment files, Mtwo retreatment files and Hedstrom files. Time to reach working length and to eliminate filling material was also recorded. The specimens were sectioned for evaluation of the area of the remaining gutta-percha/sealer under stereomicroscope at 6X magnification. Photographs were taken for further analysis using computer image analysis program. The results were statistically analyzed using Analysis of variance (ANOVA) and Tukey’s honestly significant difference test. Results: The R-Endo retreatment system resulted in a smaller percentage of canal area covered by residual GP/sealer than in other groups, a significant difference was found between R-Endo and Mtwo group and between Hedstrom groups (P < 0.001). The Mean operating time was minimum with R-Endo group while it was found to be maximum with hand files. Conclusion: It was concluded that all test techniques left gutta-percha/sealer remnants within the root canal. The R-Endo retreatment files and Mtwo retreatment files system proved to be an efficient method for removing gutta-percha and sealer from single rooted premolars.
A Comparative Study of Condylar Guidance Setting Obtained From Interocclusal Records and Panoramic Radiographs in Both Dentulous and Edentulous Subjects
Authors: Acharya Sharad , Pandey Avni , Sethi Sumit , Meena Manoj
Published: October 2018

To compare the condylar guidance values obtained from interocclusal records and the panoramic radiographs in both dentulous and edentulous subjects. Materials & methods: 20 dentulous and 20 edentulous subjects having specific criteria were selected for the cross-sectional descriptive in-vivo study. In the first method, the sagittal condylar guidance values for both the groups were recorded after obtaining protrusive records using HANAU articulator model Wide-Vue, U.S.A. In the second method panoramic radiographs were made of all the edentulous and dentulous subjects in the natural head position and tracings were done of the outline of glenoid fossa and the articular eminence. The angles formed by the lines drawn were measured and the values obtained were compared with those from the inter-occlusal record method. The condylar guidance readings of both dentulous and edentulous subjects obtained from the interocclusal records and those by tracing panoramic radiographic images were compared by Mann Whitney U test and Karl Pearson’s coefficient of correlation test. Results: The condylar guidance values obtained from the interocclusal records were less when compared to the values obtained from tracing the panoramic radiographs. Significant correlation (r=0.9) between the condylar guidance values obtained for left and right sides in interocclusal record group and a moderate correlation (r=0.65) between the condylar guidance values obtained for left and right sides from panoramic radiographs. Conclusion: The results from this study showed that measurement of condylar inclination angles using panoramic radiographs gave higher values, as compared to the inter-occlusal record method. Also, panoramic radiographic method revealed less difference between the condylar guidance values obtained for left and right sides as compared to the articulator method. Although, significant amount of correlation was found between the two methods, variations due to different operators and better radiographic techniques should be further investigated.
Missed Canals can Never be Missed-CT In Endodontics: A Series of Case Reports
Authors: Chaudhary Devendra , Shah Niti , Bansal Abhishek , Kukreja Navneet , Nagarth Hitesh
Published: October 2018

Aberrations in the root canal anatomy are a commonly occurring phenomenon. A thorough knowledge of the basic root canal anatomy and its variations is necessary for successful completion of the endodontic treatment. The maxillary molars has fascinated researchers and clinicians for a variety of reasons. Endodontically, these are the most misunderstood teeth, and presents a variety of considerations for the treating practitioner. This case report presents the endodontic management of a maxillary first molar with five roots and five canals and another case of maxillary third molar with four canals. The clinical detection of the five canals was made using loupes and confirmed using computed tomography (CT) scanning. This report serves to remind clinicians that such anatomical variations should be taken into account during endodontic treatment of the maxillary molars.
Extra Corporeal Shock Wave – A New Wave of Therapy
Authors: Goyal Eva , Singh Guljot , Sharma Vivek , Gill Jaspreet , Gupta Gagandeep
Published: October 2018

Extracorporeal shock wave therapy (ESWT) has been enormously used in medical practice, especially for the management of various orthopedic and musculoskeletal disorders. Extracorporeal shock wave therapy has favorable effects on stimulating callus formation, inducing angiogenesis and bone regeneration and relieving pain. Studies also indicated that extra corporeal shock waves have a significant bactericidal effect on bone- and implant-associated infections. The present article reviews the various applications of extra corporeal shock wave therapy in the field of dentistry and the possibility of inculcating the useful properties of shock waves in improving the treatment outcome.
Evaluation of The Clinical Efficacy of Collagen Membrane In Combination with Bone Grafts in the Treatment of Miller’s Class I /II Marginal Tissue Recession: A Case Report
Authors: Dev Yash , Khuller Nitin , Singh Preetinder , Kaur Prabhjot , Raghav Yashbir , Singh Anahita
Published: October 2018

The aim of this clinical trial was to evaluate the clinical effectiveness of a collagen barrier along with an alloplastic bone graft in the treatment of gingival recession defects. Two patients having Miller’s Class I or Class II recession defects participated in the study. One was treated with a collagen membrane covered by a coronally positioned flap. Second patient also had bone graft placed beneath the membrane. Clinical parameters were recorded. Patients were followed postoperatively and healing was evaluated at 1, 3 and 6 months, with recession depth as the primary criteria for assessment. This case report revealed a favorable tissue response to bone graft and collagen membrane from both clinical and esthetic point of view in the treatment of gingival recession. Root coverage tended to be better with the addition of bone graft.
Comparison of Surface Characteristics of Apical Third of Rotary NiTi Files Manufactured from Different Phases of NiTi before and after Use: an Sem Analysis
Authors: Bakhai Dhwani , Hegde Vibha
Published: October 2018

Clinically, there is a real potential for rotary NiTi instruments to separate in the canal; hence increasing the resistance to fracture has been a focus in the designing of new NiTi rotary systems. NiTi alloys go through various transitional phases and these have been utilized by manufacturers in different file systems. Aim: To evaluate and compare the surface changes of rotary nickel-titanium instruments manufactured from the Austenite phase, M-wire technology and R- phase before and after multiple uses. Materials and Methodology: 60 freshly extracted human mandibular premolars with a single, straight canal were selected. They were divided into 3 groups of 20 teeth each. Cleaning and Shaping was carried out using the crown down technique. All instruments were evaluated for defects under Scanning Electron Microscope (SEM) before and after multiple uses and scored for the defects. Results were statistically analyzed using Kruskal Wallis and Mann Whitney U test. Results: The p-value was <0.0001, indicating a statistically significant difference between the three groups in terms of resistance to surface defects. Conclusion: R-phase technology had superior resistance to surface defects, followed by M-wire and the austenitic phase.
A Comparison of the Efficacy of a Primerless Orthodontic Bonding Adhesive as Compared to Conventional Materials: an Invitro Study
Authors: Chitra Prasad ,   Yashpal
Published: October 2018

Introduction: Light cured composite resins have become the method of choice in orthodontic bonding procedures worldwide. In recent years, a new primerless orthodontic bonding composite, Heloisit with good bond strength, fluoride release and an advantage of not requiring use of a primer has been introduced. Aims: To compare the bonding characteristics of commonly available self and light cured adhesives with primerless system. Materials and Methods: One hundred twenty extracted human premolar teeth were mounted on similar sized aluminium blocks and were divided into four groups of thirty teeth each. All teeth were bonded with four different bonding systems Group i) Light Cured Primerless orthodontic Composite (Heliosit®, Ivoclar Vivadent, Schaan, Liechtenstein), Group ii) Light Cured Composite Resin (Transbond XT®, 3M Unitek), Group iii) Light Cured GIC (GC Fuji Ortho LC®, GC Corp.), Group iv) Self Cured Composite Resin (Rely-A-Bond®, Reliance, Inc., Illinois, USA) using metallic premolar first premolar brackets (0.022” Ortho Organizers). These were evaluated for shear bond strength using an Instron testing machine. Surface characteristics after debonding were studied under scanning electron microscopy (SEM) and evaluated using the adhesive remnant index (AR Index). Results: Shear bond strength (SBS) of primerless orthodontic light cured Heliosit® composite was clinically significant and adequate for clinical use. It lies intermediate to Transbond XT light-cured composite and Light Cured GIC. The least bond strength was shown by Rely-a-Bond® self-cured composite resin. Conclusions: Heliosit® light cured primerless orthodontic composite can be used for everyday clinical use due to its ideal characteristics of sufficient bond strength and reduced chances of enamel damage at debonding. Additionally, it is primerless and saves valuable clinical time.
Agenesis of Bilateral Permanent Mandibular Canine: A Rare Case Report
Authors: Jindal Deepti , Jindal Varun , Singh Himanshu , Gautam Swati , Bhojia Ishita , Chaudhary Arjun
Published: October 2018

Hypodontia is the congenital absence of less than six teeth because of agenesis. Congenital absence of tooth (hypodontia) from the dental arch, may occur with any tooth, most commonly being third molars, however, absence of permanent mandibular canine is rare. The absence of teeth may be unilateral or bilateral. There are reports showing unilateral occurrence of permanent mandibular canines but agenesis of bilateral mandibular canines is not well documented in the literature and comprehensive review of literature shows paucity of data pertaining to this anomaly. Here we report one such rare case of congenitally missing mandibular permanent canines bilaterally.
Prosthetic Management Of Dentigerous Cyst – A Case Report
Authors: Kumar Manjit , Sharma Arvind , Razdan Sonali , Kumar Dinesh
Published: October 2018

Maxillomandibular defects may be the result of congenital malformations, trauma or surgical resection of tumors. The primary objective of rehabilitating these defects is to eliminate the disease by surgical resection and improve the qualityof life for these individuals. Rehabilitating patients with maxillofacial defects is one of the most challenging therapies of the stomatognathicsystem. Prosthetic reconstruction of these defects may be achieved with the help of varied prosthesis, removable and fixed. Thepresent case report describes a case of a large dentigerous cyst managed with a surgicalobturatorwhich allowed closure of the defect by secondary healing through granulation tissue maturation and associated bone fill. The obturator allowed decrease in size of defect and enhanced comfort and overall well-being of the patient till the complete filling of bone and till some permanent prosthesis is provided.
Comparison of Canaltransportation and Centering Ability of Protaper Next, Hyflex Cmandwave One System Using Cone - Beam Computed Tomography-an in-Vitro Study
Authors: Uppin Veerendra , Varghese Vinaya , Pujar Madhu , Kurian Nirmal , Vagarali Hemant
Published: October 2018

Objective: The aim of the study was to compare the canal transportation and centering ability of Rotary ProTaper Next, Hyflex CM and Wave One primary systems using cone beam computed tomography (CBCT) in curved root canals. Materials and Methods: Total 30 freshly extracted maxillary first molars having root canals with curvature between 10°- 20° were divided into three groups of 10 teeth each. All teeth were scanned by CBCT to determine the root canal shape before instrumentation. In Group 1, the canals were prepared with ProTaper Next files, in Group 2 with Hyflex CM files and in Group 3 with Wave One files. After preparation, post-instrumentation scan was performed. Pre-instrumentation and post-instrumentation images were obtained at 3 mm and 6 mm above the apical foramen and were compared using CBCT software. The amount of canal transportation and centering ability were assessed and statistically compared with one way analysis of variance and Tukey honestly significant test. (p<0.05). Results: All instrumentation systems used resulted in some amount of canal transportation. Data obtained suggested that Wave One files caused significantly lesser transportation and remained better centered in the canal than Hyflex CM and Rotary ProTaper Next files. Conclusion: The canal preparation with Wave One files results in lesser transportation and better centering ability than Hyflex CM and ProTaper Next rotary files in curved root canals.
Clinical Effects of the Local Drug Delivery Of 0.5% Azithromycin Gel in Treatment of Chronic Periodontitis Among Smokers Versus Non Smokers
Authors: Kaur Jasmine , Goel Viniti , Malhotra Ranjan , Grover Vishakha
Published: October 2018

Background: Along with conventional periodontal surgical therapy, local delivery of antibiotics may provide more effective treatment in smokers by targeting tissue-invasive bacteria. The aim of this randomized, clinical trial was to evaluate the adjunctive effects of subgingivally delivered 0.5% azithromycin (AZM) as an adjunct to scaling and root planing (SRP) in the treatment of chronic periodontitis in smokers versus non smokers. Methods: 38 sites in patients of chronic periodontitis were randomized and categorized into two treatment groups: Group 1 consisted of 19 sites in patients who were smokers and Group 2 consisted of 19 sites in non smokers, who received Scaling and Root Planing (SRP) plus 0.5% azithromycin gel Local drug delivery. Clinical parameters were recorded at baseline, 1 and 2 months. They included probing depth (PD) and clinical attachment level (CAL) and percentage bone fill. Results: Azithromycin resulted in significant improvements in both the groups. Mean decrease in PD in non smokers by the end of 2 months was 3.903mm and in smokers was 3.917mm. Gain in CAL in non smokers by the end of 2 months was 3.879mm and in smokers it was 3.920mm. Mean bone fill at one month for smokers was 15.86% and was 26.58% at 2 months. In non-smokers the mean bone fill was 17.19% at 1 month and 24.03% at 2 months. Conclusions: When compared to the non smokers, the adjunctive use of 0.5% AZM resulted in similar improvement in clinical outcome in the treatment of chronic periodontitis among smokers. Local drug delivery of Azithromycin gel contributed to decrease in probing pocket depth, gain in clinical attachment level and in alveolar bone. The apparent bone regeneration also raises the intriguing possibility that Azithromycin encourages bone formation once tissue inflammation has subsided.
Comparison of Incisor, Molar & Lower Anterior Facial Divergence in Hypodivergent, Hyperdivergent And Normodivergent Patient: A Study Modeland Cephalometric Study
Authors: Kakadiya Jignesh , Kambalyal Prabhuraj , Singla Mukesh , Jingar Jyoti , Vishnoi Pradeep
Published: October 2018

Background: There is a strong genetic influence in determination of tooth dimensions bearing an influence on the facial dimension. Aims and Objective: To determine a correlation between clinical crown height of upper and lower permanent incisor (11 and 41), molar (16 and 46) and lower facial height clinically and cephalometrically in males and females. Materials & Methods: A sample of 180 patients were (90 males and 90 females) included in our study,(60-hypodivergent, 60-normodivrgent and 60-hyperdivergent) with an age range of 17-25 years. Threeanthropometric measurements were considered. The lower facial height from subnasale(Sn) to menton, and cephalometric lower facial height distance from anterior nasal spine(ANS) to menton and the clinical crown height of maxillary and mandibular incisors and molars were measured. Observations: Significant difference was observed in relation to 16 in normodivergent patient and lower facial height clinically and cephalometrically in hyperdivergent growth patient. No significant difference between clinical&cephalometric lower facial height in normodivergent, hypodivergent and hyperdivergent male and female patient. Significant difference was observed between 41 to lower facial height in hypodivergent & 11,41 &46 to lower facial height in hyperdivergent patient. Conclusion: A strong significant correlation was observed with clinical crown height of lower central incisor and lower facial height in hyperdivergent and hypodivergent patient.
Lymphoepithelioma-Like Carcinoma of The Oral Cavity-A Diagnostic Perplexion
Authors: Kamboj Mala , Chaturvedi Mudita , Shreedhar Balasundari
Published: October 2018

Lymphoepithelioma-like carcinoma (LELC), a rare tumor in oral cavity is characterized by non-keratinizing, undifferentiated squamous cell carcinoma with lymphocytic infiltration bearing microscopic resemblance to lymphoepithelioma (nasopharyngeal carcinoma). A 45 year old female presented clinically with an unusual maxillary swelling and pain in right upper posterior jaw with intermittent serous like discharge from the nose. A diagnosis of rare case of intraoral LELC was made.
Prosthetic Rehabilitation of a Patient with Ocular Defect- A Case Report
Authors: Kaur Jaswinder
Published: October 2018

The disfigurement associated with the loss of an eye may result in significant physical and emotional problems. The article describes the successful rehabilitation of a patient with missing eye with a custom made ocular prosthesis. This allows the patient to be accepted in society without being a victim of unwanted sympathy.
An Innovative Technique for Hollowing a Prosthesis with Excessive Vertical Height Using Polyvinyl Siloxane Putty
Authors: Gandhi Nitasha , Kurian Nirmal , Wadhwa Supneet , Daniel Angleena , Daniel Smitha , Varghese Vinaya
Published: October 2018

Rehabilitation of hemimaxillectomy patients is a very challenging process. The augmented weight of the prosthesis when closing large defects is often a concern to its retention and lightweight obturators are thus warranted in such clinical situations. Most of the techniques in literature to hollow a prosthesis were designed to make only the defect region of obturator hollow and has limited application when it comes to prosthesis with excessive vertical height. This technique described in this article can be used to hollow vertical height of any prosthesis and successfully replace conventional techniques when they are not feasible.
Hip Pain in the Athlete Part 2: How to Work Up, Diagnosis, and Manage Femoroacetabular Impingement
Authors: Bolia Ioanna , Briggs Karen , Philippon Marc
Published: October 2018

Femoroacetabular impingement (FAI) is frequently recognized as a cause of hip pain in athletes. Sports predisposing to the development of FAI often include repetitive hip flexion combined with rotational movements or extreme joint range of motion. Hip symptoms often arise due to multiple structural abnormalities in and around the joint. Conservative management with physical therapy is recommended at the initial manifestation of FAI in athletes, which is followed by hip arthroscopy if no improvement is observed. Physicians must consider the socioeconomic impact of the hip injury on active individuals, especially in athletes who compete at a professional level.
Therapie frischer und veralteter Quadrizeps- und Patellarsehnenrupturen
Authors: Dettmer Sebastian , Schweigkofler Uwe , Hoffmann Reinhard
Published: October 2018

Die nicht knöchernen Verletzungen des Kniegelenkstreckapparates sind seltene, aber relevante Verletzungen, die zur uneingeschränkten Wiederherstellung einer zeitnahen Diagnosestellung und i. d. R. operativen Therapie bedürfen. Der Artikel gibt einen Überblick über die funktionelle Anatomie des Kniegelenkstreckapparates und die gezielte Diagnostik. Das grundlegende Wissen zur konservativen wie auch operativen Versorgung und Nachbehandlung von frischen und chronischen Totalrupturen und Partialrupturen der Quadrizeps- und Patellarsehne wird in dieser Übersicht vermittelt.
Davydov-type excitonic effects on the absorption spectra of parallel-stacked and herringbone aggregates of pentacene: Time-dependent density-functional theory and time-dependent density-functional tight binding
Authors: Darghouth Ala Aldin M. H. M. , Correa Gabriela Calinao , Juillard Sacha , Casida Mark E. , Humeniuk Alexander , Mitrić Roland
Published: October 2018

Exciton formation leads to J-bands in solid pentacene. Describing these exciton bands represents a challenge for both time-dependent (TD) density-functional theory (DFT) and for its semi-empirical analog, namely, for TD density-functional tight binding (DFTB) for three reasons: (i) solid pentacene and pentacene aggregates are bound only by van der Waals forces which are notoriously difficult to describe with DFT and DFTB, (ii) the proper description of the long-range coupling between molecules, needed to describe Davydov splitting, is not easy to include in TD-DFT with traditional functionals and in TD-DFTB, and (iii) mixing may occur between local and charge transfer excitons, which may, in turn, require special functionals. We assess how far TD-DFTB has progressed toward a correct description of this type of exciton by including both a dispersion correction for the ground state and a range-separated hybrid functional for the excited state and comparing the results against corresponding TD-CAM-B3LYP/CAM-B3LYP+D3 results. Analytic results for parallel-stacked ethylene are derived which go beyond Kasha’s exciton model [M. Kasha, H. R. Rawls, and A. El-Bayoumi, Pure Appl. Chem. 11, 371 (1965)] in that we are able to make a clear distinction between charge transfer and energy transfer excitons. This is further confirmed when it is shown that range-separated hybrids have a markedly greater effect on charge-transfer excitons than on energy-transfer excitons in the case of parallel-stacked pentacenes. TD-DFT calculations with the CAM-B3LYP functional and TD-lc-DFT calculations lead to negligible excitonic corrections for the herringbone crystal structure, possibly because of an overcorrection of charge-transfer effects (CAM refers to Coulomb attenuated method). In this case, TD-DFT calculations with the B3LYP functional or TD-DFTB calculations parameterized to B3LYP give the best results for excitonic corrections for the herringbone crystal structure as judged from comparison with experimental spectra and with Bethe-Salpeter equation calculations from the literature.
The current-induced electroresistance in strain-modulated Pr0.5Sr0.5MnO3 film
Authors: Chen L. P. , Miao L. D. , Gao J.
Published: October 2018

Pr0.5Sr0.5MnO3 films were grown on ferroelectric substrates of 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3 by pulsed-laser deposition method. The film structure and lattice change with electric field applied on the substrate are examined by X-ray diffraction. The electric field dependence of resistivity was compared with electric field dependence of lattice at room temperature, revealing a relation between resistance and strain. Current-induced electroresistance (CER) was studied by using different measuring current. With increasing electric filed a colossal decrease of CER at low temperature was achieved, indicating great strain effect. The piezoelectric strain effect on the magnetoelectric coupling at multiferroic interface was discussed.