bluuebunny/crossref_metadata_2025 huggingface dataset:
Relaxation of ArH+by collision with He: Isotopic effects
Authors: García-Vázquez Ricardo M. , Márquez-Mijares Maykel , Rubayo-Soneira Jesús , Denis-Alpizar Otoniel
Published: September 2019

Context.The study of noble gas compounds has gained renewed interest thanks to the recent detection of ArH+in the interstellar medium (ISM). The analysis of physical-chemical conditions in the regions of the ISM where ArH+is observed requires accurate collisional data of ArH+with He, H2, electrons, and H.

Aims.The main goals of this work are to compute the first three-dimensional potential energy surface (PES) to study the interaction of ArH+with He, analyze the influence of the isotopic effects in the rate coefficients, and evaluate the rovibrational relaxation rates.

Methods.Two ab initio grids of energy were computed at the coupled cluster with single, double, and perturbative triple excitations (CCSD(T)) level of theory using the augmented correlation consistent polarized quadruple, and quintuple zeta basis sets (aug-cc-pVQZ, and aug-cc-pV5Z) and a grid at the complete basis set limit was determined. The analytical representation of the PES was performed using the reproducing kernel Hilbert space (RKHS). The dynamics of the system was studied using the close coupling method.

Results.The differences in the rate coefficients for the isotopes36ArH+,38ArH+, and40ArH+in collision with He are negligible. However, the rotational rates for the collision of ArD+with He cannot be estimated from those for ArH++He. Comparison with previous rates for the36ArH++He collision showed discrepancies for ∣ Δj ∣ > 2, and in the case of high initial rotational states of36ArH+differences were found even for ∣ Δj ∣ = 1. The rates for transitions between different vibrational states were also examined. Finally, new sets of rotational rates for36ArH++He and36ArD++He are reported.
Erratum to: A variational approach to a stationary free boundary problem modeling MEMS
Authors: Laurençot Philippe , Walker Christoph
Published: September 2019

An incomplete argument in the proof of Theorem 3.4 from Ph. Laurençot and Ch. Walker [ESAIM: COCV 22 (2016) 417–438] is corrected.
Global balance and the environment - Development feedback loop
Authors: Mastrojen Grammenos
Published: September 2019

Since developers have become more aware of the environment, policy-makers have noted a link between environmental and societal instability hinting at a human-nature planetary balance that hosts both stabilising retroactions and disruptive feedback loops: within the ecosystem, within society, and alsoconnecting both dimensions. The commonly feared scenario is a “business as usual” neglect of natural balance, but the severe impairment ofthe ecosystem favours conditions worse than “business as usual”. It would trigger human fragility, instability, and conflict which can paralyze society’s ability to manage the ecosystem itself. This, in turn, could worsen environmental degradation, creating even greater instability and conflict in a dangerous self-feeding cycle. If verified, this understanding has deep operational implications and would ultimately require a revision ofour economies. Policies are already being launched based on this perception, although it has not been investigated in rigorous quantitative terms: a call is out for science to fill the gap.
A contribution from psychoanalysis and neuroscience to a non-reductionist approach in economics
Authors: Fornero Saura
Published: September 2019

What connections can be identified between economics, psychoanalysis and neuroscience and why make them? These are different disciplines and it is unusual to approach them together. The scientific paradigm of complexity includes and broadens the positivist paradigm and invites us to learn to think in terms of relationships and processes, and therefore in interdisciplinary terms. Specifically, it has been noted that the study of economics tends to be independent of a precise knowledge of human operations, of what actually determines effective choices and behaviours. In this sense, both psychoanalysis – understood as a discipline that leads the human sciences to the need to equip themselves in order to also consider the socalled unconscious aspects – and neurosciences – for the study of the neurophysiological correlates of the mind – can help build knowledge based on a complex systemic view of economic processes and their peculiarities. From this perspective, the group analysis – as also applying the unconscious conceptualisation to the study of the groups and to the groups clinic –can constitute a theoretical-experiential laboratory for the analysis and verification of hypotheses consistent with complex objectives, in the setting of survey, research and practice in the scientific, political and social fields.
Human settlements and sustainability: a crucial and open issue
Authors: Mele Caterina
Published: September 2019

The human habitation of the surface of the planet has led, especially since the mid-twentieth century, to an enormous increase in the built up area. This phenomenon concerns both the oldest industrialised countries, such as European Union and the United States, and the so-called emerging countries in Asia, Africa and Latin America.The urbanised built area has increased in different ways, but has led everywhere to the destruction of large portions of virgin soil, the loss of biodiversity in the number and type of species in fauna and flora, and often the total or partial impairment of ecosystem functions of enormous environmental value (such as the evapotransportive mechanisms of soil and vegetation). Although the curve of global population growth is slowing, the growth of urban areas continues to expand, even in countries which have long been industrialised, where the spread of building has given rise to cities dispersed over a territory so that there is no longer a recognisable clear division between the city and the countryside. In fact, contemporary cities are the main consumers of all environmental resources, from water to food, including energy and environmental stressors, and are responsible for 80% of CO2 emissions into the atmosphere. The ecosystem surface required to sustain a large city on the planet today canbe about 200 times larger than its physical size. The urban civilisation of the 21st century, which at a superficial glance may appear as a symbol of the human capacity to radically adapt and transform the natural habitat toits own needs, is also a witness to the unsustainability of the human footprint on earth. Radically rethinking cities and human settlements entails an equally radical rethinking of our economic and development model, but it is a necessary and strategic task if we really want to face the challenge of sustainability with appropriate
instruments.
Nature as an answer
Authors: Vedoya Daniel Edgardo
Published: September 2019

I present here a brief summary of the actions that we have initiated in the ITDAHu (Institute of Technological Research for the Environmental Design of Human Habitat), which I direct in the Faculty of Architecture and Urbanism of the National University of the Northeast (in the Argentina Republic), in the search for sustainable design patterns. We see it as appropriate to focus our attention on nature, which has continued through centuries of history and evolution to solve its own problems effectively and efficiently.
The use of drones in the maintenance of photovoltaic fields
Authors: Bizzarri Fabrizio , Nitti Silvia , Malgaroli Gabriele
Published: September 2019

Enel Green Power is an Italian company which realises and manages large photovoltaic (PV) plants around the world. The company is involved in a huge number of research projects and one of them involves the use of drones for PV inspection in order to guarantee the correct operation of the plants. In this paper, the use of drones the maintenance of PV plants is analysed from a technical and economic point of view, as function of plant size. First, the use of drones for thermography and visual inspection is briefly described, then, on the basis of on-field activities, the technical specifications of drones and the procedure for the inspection are defined. The results of a thermal infrared analysis performed on six PV plants are analysed. In particular, the failure rates of PV modules are estimated, describing each failure. Finally, an economic analysis is performed in order to evaluate the competitiveness of drones for PV inspection compared to manual maintenance.
Su-Eatable Life Project: reducing carbon emissions and water use pressure through sustainable diet
Authors: Castaldi Simona , Antonelli Marta , Dembska Katarzyna , Magnani Andrea , Varotto Alessandra , Petersson Tashina , Valentini Riccardo
Published: September 2019

The EU food chain is at present highly carbon and water intensive. A significant contribution to reducing carbon emissions and pressure on water resources resulting from overuse might come from the adoption of a more sustainable and healthier diet. While people are generally aware that the food they eat is an important factor affecting their health, however, the impact that food production and consumption has on the world's resources is less known. There is therefore a need to build methods and tools that create awareness among the population about the potential savings of the resources that sustainable and healthy diets can bring, and stimulate the population to adopt such diets. The EU project SU-EATABLE LIFE aims at i) developing guidelines that define a sustainable and healthy diet, ii) carrying out a wide range of initiatives aimed at increasing awareness and education on food-related issues by citizens/customers and iii) implementing an easy-to-use information system that enables citizens to adopt such a diet. The long-term objective is to contribute to reducing GHG emissions and achieving water savings in the EU via citizen education and active engagement.
What is Green Manufacturing? A Quantitative Literature Review
Authors: Setyaningsih Ira , Slamet Ciptono Wakhid , Indarti Nurul , Iman Vidya Kemal Nofie
Published: September 2019

This paper is a decade This paper is a decade of literature review (2009–2019), about green manufacturing (GM) topic. Quantitative methods with the Publish or Perish (PoP) and VOSviewer software are used to filter the appropriate papers. The database used in PoP is Google Scholar and Scopus. During this time 403 articles were included in PoP screening, 212 articles on the Google Scholar database and 191 articles on the Scopus database. Paper not Q1 and Q2, duplicate paper in both databases, paper not in English, book review, were excluded from the analysis. The results obtained 78 papers that can be analyzed. This paper elaborate network analysis of research in green manufacturing topic and describe in detail the publications in the GM field, including journals and the year of publication. We find that there are three journals dominated the publication in this topic, Journal of Cleaner Production, International Journal of Precision Engineering and Manufacturing, and International Journal of Production Research. In this decade, GM was discussed extensively in 2018. From VosViewer software, we get four main research clusters, that is, model, green manufacturing, industry and practice. There are many topics dealing with GM can be developed in future research from maps shown by VosViewers, such as adoption, GSCM, and environmental regulation.
The effect of loading rate to biogas production rate of the 500 liter anaerobic digester operated with continuous system
Authors: Atmika I Ketut Adi , Atmika I Ketut Adi , Sebayuana Kadek , Nindhia Tjokorda Gde Tirta , Surata I Wayan , Astawa I Putu Ari , Komaladewi Anak Agung Istri Agung Sri
Published: September 2019

Conventional anaerobic digester such as fixed dome and floating drum are found having drawback in application in developing country. It was difficult in maintenance and operation. It was also difficult to relocate to the new site of waste processing. The portable anaerobic digester is prepared in this work as a solution. The capacity is about 500 liter so that suitable for home scale organic waste treatment. The material that is used for the digester was 304 stainless steel. The digester is completed wit agitator to optimize the biogas production. A slurry of cow dung (50% cow dung+ 50% water) is use to feed the digester. There are 2 variations of slurry loading rate that were investigated in this work, namely 5 liter slurry/day and 10 liter slurry/day. The biogas production rate is found about 51.7 liter biogas/day if loading with 5 liter slurry/ day. The biogas production rate is found increase significantly to become 82 liter biogas/day if loading with 10 liter slurry/day. The quality of biogas is found better with loading rate 5 liter slurry/day which has average CH4 content about 58.75% vol. comparing the one with loading rate 10liter slurry/day that have average CH4 content about 56.40% vol.
Cu adsorption in fixed bed column with three different influent concentration
Authors: Lo Huang-Mu , Lin Kae-Long , Liu Min-Hsin , Chiu Hsung-Ying , Lo Fang-Cheng
Published: September 2019

Heavy metals from the electroplating wastewater might cause environmental pollution if not well treated. Generally, carbon adsorption might be used for the final step for further trace metals removal. This study investigated the heavy metal Cu adsorption in the fixed bed column with 1, 10 and 100 mg/L influent concentration. Results showed that KAB decreased as influent Cu concentration increased from 1 to 100 mg/L while N0 increased as influent concentration increased from 1 to 100 mg/L as can be found in Adams-Bohart model. R2 was found between 0.8579 and 0.9182. In Thomas model. KTH and q0 showed the similar trend as KAB and N0 in the Adams-Bohart model. KTH decreased as influent Cu concentration increased from 1 to 100 mg/L. q0 increased as influent Cu concentration increased from 1 to 100 mg/L. R2 of regression model was found between 0.9065 and 0.9836. In Yoon-Nelson model. KYN increased as influent Cu concentration increased from 1 to 100 mg/L while τ decreased as influent Cu concentration increased from 1 to 100 mg/L. Results showed that the three models of Adams-Bohart model, Thmoas model and The Yoon-Nelson model were suitable for the description of Cu adsorption by activated carbon.
Vibration and sensitivity analysis of piezoelectric microcantilever as a self-sensing sensor
Authors: Shahraki Zahra Nadimi , Ghaderi Reza
Published: September 2019

Piezoelectric microcantilevers (MCs) have extensive applications in microelectromechanical systems. One of the applications of piezoelectric MCs is in self-sensing sensors. These sensors are highly popular due to their high accuracy, quick response, and environmental compatibility. Since the output current of piezoelectric layer is used as the sensing parameter in piezoelectric MCs, sensor optimization requires the maximum output current for each specific vibration. This paper uses dynamic piezoelectric MC analysis in different operating environments (air and liquid) to determine the factors influencing the output current of a piezoelectric layer. To obtain the differential equation of vibration, the hydrodynamic force applied to the piezoelectric MC by using the sphere string model. The equation was obtained via the Euler-Bernoulli beam theory and the Lagrange equation. The differential equation of the movement would yield both the MC deformation and the piezoelectric layer current. Using the Sobol statistical method for sensitivity analysis, the effect of each geometric parameter of the piezoelectric MC on the output current was studied to find the optimal geometry for the maximum output current. Results show that the output power of the piezoelectric layer is reduced in a liquid environment. Moreover, increasing the density of the liquid further exacerbates the drop in the output power. Therefore, in cases where the MC is to be used in a liquid environment (such as in biosensors), it is best to use a low-density liquid. The results also show that the electric current produced in the piezoelectric layer increases by reducing the length of the MC.
Construire et assurer l’héritage des Jeux olympiques et paralympiques. Pour une inclusion sportive durable des personnes vivant des situations de handicap
Authors: Richard Rémi , Marcellini Anne , Pappous Athanasios Sakis , Joncheray Hélène , Ferez Sylvain
Published: September 2019

Mobiliser les Jeux olympiques et paralympiques pour construire une société plus inclusive et solidaire est au cœur du projet « Paris 2024 ». À ce titre, améliorer la visibilité et la participation sportive des personnes handicapées est une ambition forte de l’héritage de Jeux paralympiques. Cet article a pour objectif de faire un bilan des travaux de recherche portant sur les héritages des Jeux paralympiques passés afin de pouvoir penser la construction de l’héritage de Paris 2024 en matière d’inclusion des personnes handicapées. Nous nous centrerons plus spécifiquement sur trois dimensions de cet héritage : la mise en image et la visibilité des sportifs paralympiques, l’effet « levier » des Jeux paralympiques sur la participation sportive de masse et sa coordination, et enfin l’accès à la pratique sportive de haut niveau des personnes handicapées.
Ernährung bei Gewichtsverlust – Vitalität stärken mit Genuss
Authors: Weis Nicole , Bihlmaier Susanne
Published: September 2019

Es gibt zunehmend Evidenz, dass bei Krebspatient*innen während und nach der Krebstherapie einem zu starken Gewichtsverlust vorzubeugen ist. Welche Maßnahmen im Sinne der Sekundärprävention zu empfehlen sind, hängt stark vom Einzelfall und der vorliegenden Tumorerkrankung ab. Bei hormonabhängigen Tumoren, wie zum Beispiel Brustkrebs, ist bei adipösen Patientinnen nach erfolgter Primärtherapie eine Gewichtsreduktion sinnvoll. Unter stark belastenden Therapien und bei fortgeschrittener Tumorerkrankung hingegen sind die wichtigsten Ziele das Halten des Gewichts bzw. der Gewichtsaufbau. Gesundheitliche Beschwerden, die die Nahrungsaufnahme zusätzlich beeinträchtigen, sollten so früh wie möglich gelindert werden. Komplementärmedizinische Möglichkeiten werden anhand der Mukositis erläutert.
Troponin-Test im Alltag – Unterschiede der Gütekriterien in der Diagnose des akuten Myokardinfarkts unter Berücksichtigung klinischer Leitsymptome: eine Querschnittsstudie
Authors: Al Mawed Mohammad , Mendrok Harm-Christian , John Fiete , Högel Rainer , Tebbe Ulrich
Published: September 2019

Einleitung Die kardialen Troponine sind die bevorzugten kardialen Biomarker in der Diagnostik eines akuten Myokardinfarkts. Sie sind jedoch bei jeglichen Myokardzellschäden, egal welcher Pathophysiologie, nachweisbar. Das Ziel dieser Studie ist, zu beurteilen, wie die Gütekriterien des Troponin-Tests in der Diagnose des akuten Myokardinfarkts im Alltag sind und ob klinische Leitsymptome einen Einfluss darauf haben.

Methode Es handelt sich um eine retrospektive Querschnittsstudie, in welche alle Patienten, die sich in der Notaufnahme des Klinikums Lippe-Detmold zwischen dem 01.01.2014 und dem 31.05.2014 vorstellten und einen Troponin-Test hatten, eingeschlossen wurden. Die Diagnose akuter Myokardinfarkt bezog sich auf den Myokardinfarkt Typ I und wurde durch den diensthabenden Kardiologen gestellt. Die Patienten wurden in 4 Subgruppen entsprechend der Leitsymptome unterteilt. Die Gütekriterien des Troponin-Tests wurden berechnet.

Ergebnisse 1046 Patienten wurden eingeschlossen. Bei 15 % lag ein akuter Myokardinfarkt vor, 97 % von diesen hatten thorakale Schmerzen. Die Sensitivitäten und die negativen prädiktiven Werte lagen über 90 %. Die Spezifitäten lagen zwischen 56 % und 81 %. Die positiven prädiktiven Werte waren bescheiden und am besten bei den thorakalen Schmerzen mit 58 %.

Schlussfolgerung Bei allen klinischen Leitsymptomen hatte der Troponin-Test einen guten negativen prädiktiven Wert. Ein akuter Myokardinfarkt konnte somit mit hoher Präzision ausgeschlossen werden. Der positive prädiktive Wert war hingegen niedrig. Lediglich bei dem Leitsymptom Thoraxschmerz konnten akzeptable Werte erreicht werden.
Nutroterapia na porfiria aguda intermitente: Da UTI ao ambulatório
Authors: Silva Filho Paulo Venancio da
Published: September 2019

A porfiria aguda intermitente é uma doença genética rara, autossômica dominante, com penetrância variável, que ocasiona erro no metabolismo hepático da via do heme, com acúmulo de intermediários tóxicos ao organismo. Manifesta-se por crises de sintomatologia multissistêmica com diagnóstico muitas vezes difícil. Os achados principais são dor abdominal intensa, polineuropatia motora, disautonomia, e distúrbios neuropsiquiátricos. Varia de quadros leves a muito graves, com arritmia maligna e paralisia bulbar, e às vezes com insuficiência ventilatória, que causa necessidade de ventilação mecânica e internação em unidade de terapia intensiva. A confirmação diagnóstica é bioquímica e genética. O tratamento da crise é feito afastando-se fatores precipitantes e especificamente com dieta rica em carbohidratos e hematina, com efeito positivo na via de biossíntese do heme. Dentro da equipe multidisciplinar, sobressai o papel do médico nutrólogo, que avalia e orienta a terapia nutrológica, tanto nas crises como no acompanhamento ambulatorial desses pacientes.
Acute Maxillary Sinusitis Associated with Internal Sinus Lifting: Report of a Case
Authors: Alkan Alper , Çelebi Nükhet , Baş Burcu
Published: September 2019

Sinus floor augmentation (SFA) is one of the techniques that has been proposed for improving the long-term retention of dental implants. The procedure involves the creation of a submucoperiosteal pocket in the floor of the maxillary sinus for placement of a graft consisting of autogenous, allogenic, or alloplastic material. Complications of the SFA predominantly consist of disturbed wound healing, hematoma, sequestration of bone, and transient maxillary sinusitis. In this report, we presented an acute maxillary sinusitis complication following internal sinus lifting in a patient with chronic maxillary sinusitis. (Eur J Dent 2008;2:69-72)
Usage of Fiber-Reinforced Resin Instruments in Interproximal Surfaces
Authors: Can-Karabulut Deniz C. , Ozyurt Perihan , Gurbuz Ayhan , Gullu Abdulkadir
Published: September 2019

Objectives: The aim of this study was to investigate the effects of fiber-reinforced resin burs on
the surface roughness of a nanofilled composite.

Methods: Average surface roughness values (Ra, �m) were measured using a surface profilometer and surface textures after finishing procedures were evaluated using a scanning electron microscope (SEM). Thirty cylindrical specimens were prepared using sectional teflon molds. A nanofilled composite was chosen. After the preparation specimens were divided into three subgroups randomly. After profilometric measurements, representative samples of the mentioned finishing procedures were selected and SEM analyses were carried out.

Results: Mylar strip group was statistically different from the other two groups (P<.05). The smoothest surfaces occurred when composite resin samples were light cured against the strips. On the other hand there was no statistical difference between fiber-reinforced resin burs and Sof-Lex discs (P>.05). For fiber-reinforced resin burs scratches and pitting which may be due to plucking of
the filler particles during finishing were observed on the surface topography of the composite resin material. On the other hand, for the Sof-Lex discs although scratches were noticed on the surface topography, no pitting was observed.

Conclusions: Fiber-reinforced resin burs can be preferred for the grinding of composite surplus
in interproximal surfaces, where the use of Sof-Lex discs can be harmful to soft tissues. (Eur J Dent
2008;2:96-101)
Articulation Performance of Patients Wearing Obturators with Different Buccal Extension Designs
Authors: Turkaslana Suha , Baykul Timucin , Aydin M. Asim , Ozarslan M. Mustafa
Published: September 2019

Objectives: The primary goal of prosthetic obturation is closure of the maxillectomy defect and separation of the oral cavity from the sino-nasal cavities by use of different bulb designs. The aim of this study was to evaluate the articulation performance of obturator patients with three different buccal extension designs.

Methods: Five patients with palatal defects of comparable sizes at ages ranging from 42 to 74 were evaluated. Starting at postoperative 4 months, speech intelligibility (SI) was assessed without a prosthetic obturator and with an obturator of buccal extensions 15 mm (high), 10 mm (medium) and 5 mm (low), respectively. Assessments were performed at four week intervals for adaptation. The articulation performance of patients with different buccal extension designs were evaluated on speech intelligibility. The data tested using Friedman test.

Results: The mean SI score without an obturator was 45.04%±5.86%. SI was found to be significantly increased with obturators of any buccal extensions with the mean values 90.50, %94.24% and 91.20% for high, medium, and low buccal extensions respectively. When the SI score was compared between three buccal extension types medium was found to be significantly higher compared to others (P<.05).

Conclusions: Obturators improve speech intelligibility irrespective of their buccal extension levels. Nevertheless, medium size buccal extension enables the optimum sealing for better articulation. (Eur J Dent 2009;3:185-190)
Vital Bleaching of Tetracycline-Stained Teeth by Using KTP Laser: A Case Report
Authors: Kinoshita Jun-Ichiro , Jafarzadehb Hamid , Forghanib Maryam
Published: September 2019

Bleaching of discolored teeth is one of the most important topics in aesthetic dentistry. A great challenge in this area is obtaining good results in tetracycline-stained teeth. The wavelength and features of KTP laser, which is a type of Nd:YAG laser, seem to be appropriate for bleaching of these teeth. This case report underlines the importance of knowledge about the photochemical bleaching by using the KTP laser and its side effects on soft tissues. (Eur J Dent 2009;3:229-232)
The Use of Double- Needle Canula Method for Temporomandibular Joint Arthrocentesis: Clinical Report
Authors: Alkan Alper , Baş Burcu
Published: September 2019

Objective: The purpose of this study is to demonstrate a temporomandibular lavage instrument with double needles in a single canula that make the procedure easier for surgeons.

Materials and methods: 38 year old woman was referred to our department with pain on the right temporomandibular joint (TMJ) region and restricted mouth opening. Magnetic resonance imaging reveals anterior disc displacement without reduction of the right TMJ. TMJ lysis and lavage was performed with double needle canula method.

Results: The upper joint space was successfully lavaged with 50 mL of 0.9% saline solution. Maximal mouth opening and lateral jaw movement increased and jaw functions improved immediately after the procedure.

Conclusion: It is recommended as a simple alternative to classical arthrocentesis with two needles that it is easy to use and enables to perform lysis and lavage with a single puncture. (Eur J Dent 2007;1:179-182)
Esthetic Rehabilitation of Bilateral Geminated Teeth: A Case Report
Authors: Türkaslan Süha , Gökçe Hasan Suat , Dalkız Mehmet
Published: September 2019

Geminated teeth are the consequences of developmental anomalies leading to the eruption of joined elements. According to current definitions, gemination occurs when one tooth bud tries to divide, while fusion occurs if two buds unite. Clinical experience shows, however that diagnosis can be complicated due to superimposed anomalies. This report describes a unique case of bilateral gemination of permanent maxillary central incisors. The esthetic rehabilitation of the geminated incisors accomplished utilizing all ceramic crowns. It is important that in these types of cases, reaching to the available esthetics and avoiding the complication of caries and periodontal problems with prosthetic application is satisfactory. (Eur J Dent 2007;1:188-191)
Value of Computed Tomography (CT) in Imaging the Morbidity of Submerged Molars: A Case Report
Authors: Kırzıoğlu Zuhal , Karayılmaz Hüseyin , Baykal Bahattin
Published: September 2019

Submerged primary molars can be difficult to manage due to the developing dentition. Rarely in some severe cases, may the surgical interventions be required while ensuring the vital structures are protected. Therefore these cases require sophisticated imaging techniques in order to locate the vital structures

In this case report, a 17 year old girl who had a retained and submerged deciduous molar which caused impaction of the second premolar and tipping of the first molar was presented. In addition, value of computed tomography (CT) for locating the vital anatomic structures was discussed

In our case, CT has been supplied effective information about localization of the vital structures and amount of bone volume during the diagnosis and treatment planning period in addition to the routine dental radiographies. (Eur J Dent 2007;1:246-250)
Aggressive Periodontitis with
Streptococcal Gingivitis: A Case Report
Authors: Kara Cankat , Demir Turgut , Tezel Adnan , Zihni Meltem
Published: September 2019

Acute streptococcal gingivitis is an acute inflammation of the oral mucosa and also may be seen with the other oral diseases as aggressive periodontitis that is characterized by a considerable attachment loss over a relatively short period of time. Streptococcal infections of gingiva are seen rarely; also the origin of this gingival inflammation is occasionally different from that of routine plaque-associated gingivitis. The clinical features and treatment methods of these diseases are already reported in previous literatures. This case report describes a patient who presented with severe gingival inflammation and attachment loss that was diagnosed as an acute streptococcal infection associated with aggressive periodontitis. In this study a supportive treatment option was demonstrated based on these data and antacid treatment as adjunctive to the recommended treatment modalities was used for streptococcal gingivitis. (Eur J Dent 2007;1:251-255)
Maxillary Tuberosity Fracture Associated with First Molar Extraction: A Case Report
Authors: Polat Hidayet B , Ay Sinan , Kara M Isa
Published: September 2019

Maxillary tuberosity fractures during molar teeth extraction can occur commonly in dental practice; however, very few cases are reported and discussed in the literature. This article presents a case of large fracture of maxillary tuberosity during extraction of first maxillary molar tooth and its conservative treatment outcomes. (Eur J Dent 2007;1:256-259)
Flexible Video-Endsocopic Injection Sclerotherapy for Second and Third Degree Internal Hemorrhoids
Authors: Nijhawan Sandeep , Gupta Gaurav , Sharma Anil , Mathur Amit , Sapra Bharat , Nepalia Subhash ,   Udawat H
Published: September 2019

Background and objectives: Bleeding from hemorrhoids is the commonest cause of rectal bleeding in adults. Injection sclerotherapy of internal hemorrhoids is one of the non-surgical treatments, and is simple, safe and feasible. Conventionally sclerotherapy is performed with rigid proctoscope which has limitations of maneuverability, narrower field of vision and documentation compared to flexible videoendoscope. Therefore, we assessed the efficacy and safety of video-colonoscopic sclerotherapy for bleeding internal hemorrhides.

Methods: Seventy-nine patients of bleeding internal hemorrhoids were subjected to colonoscopic sclerotherapy using 1.5% polidocanol in retroflexed or forward viewing positions. Success of treatment was defined as cessation of bleeding for six weeks. Patients were observed for complications and were followed up regularly for 3 months.

Results: A total of 79 evaluable patients, 61 had grade II and 18 had grade III hemorrhoids. There was no statistically significant differences in achieving excellent or good results for control of bleeding between patients with grade II and grade III hemorrhoids (100% vs 94,5%; p>0.05). The number of sessions of sclerotherapy required were significantly more in grade II than grade III hemorrhoids (1.1 ± 0.3 vs 1.3 ± 0.7; p = 0.04). No significant complications were noted except for bloating in ten patients (12.6 %) and rectal pain in 6 (7.6%) patients. Median time taken for the procedure was 30 minutes.

Conclusions: Video-endoscopic sclerotherapy is safe, well-tolerated and effective treatment for bleeding internal hemorrhoids.(J Dig Endosc 2011;2(1):1-5)
Effects of long-term acid suppressants with ranitidine and omeprazole on gastric mucosa
Authors: C. Alexander P , S. Ramya , T. Rajkumar Soloman , S. Raja , M. Priyadarshini , R. Geetha , Srinivasan Vijaya , V. Jayanthi
Published: September 2019

Background and objectives: Proton pump inhibitors are used widely for gastroesophageal reflux disease and ulcer type dyspepsia. Majority of the patients require long term medication. H2 receptor antagonist are also used for relief of symptoms. Though tachyphylaxis has been reported, symptom response is seen with long term use. The aim of the present study was to study the effects of long-term acid suppressants on gastric antral histology.

Methods: Patients who received long-term acid suppressants such as ranitidine and omeprazole for gastroesophageal reflux disease or dyspepsia were included. All of them had an antral biopsy for histology and H. pylori status at baseline, at 6 months and 12 months. Patients on acid suppressants for less than a year or on long-term non-steroidal anti inflammatory drugs were excluded from the study. The grading of gastritis was classified as chronic active gastritis, atrophic gastritis, intestinal metaplasia and dysplasia.

Results: Thirty patients received ranitidine and 28 omeprazole. In H. pylori positive group, the median duration of ranitidine and omeprazole were 3 years (1.5 to 8 years) and 4 years (1 to 10 years) respectively. Two thirds of patients had chronic active gastritis (ranitidine: 35.5% omeprazole:26.6%); 10 had gastric atrophy (ranitidine: 6.6% omeprazole:15.5%) and 7 had intestinal metaplasia (ranitidine4.4% omeprazole11.1%). Four of the 10 patients on omeprazole showed progression of histology as against only one of the 13 patients on ranitidine at one year of follow up. In omeprazole pylori negative patients, the median duration of ranitidine and omeprazole was 2.5 years (range 1 to 6 years) and 3 years (range 2 to 7 years) respectively. Irrespective of the acid suppressants, the baseline histology was either chronic active gastritis (78.5%) or gastric atrophy (21.5%). None had intestinal metaplasia. Also there was no progression in histology staging during the follow up.

Conclusions: Long-term acid suppressants irrespective of the H. pylori status are not associated with significant histological changes in gastric mucosa. Despite a significant drop out of cases, among the cases followed up no significant progression in histological staging was seen during a one year follow-up. (J Dig Endosc 2013;4(1):1–5)
The prevalence of helicobacter pylori and gastritis in Oman
Authors: Alwahaibi Nasar Y , Almahrooqi Badria M , Alrawahi Samirah A
Published: September 2019

Background and objectives: Helicobacter pylori (H. pylori) are considered to be the most common human infectious agents leading to gastritis, ulcer and probably stomach cancer. The aim of this study was to evaluate the prevalence of H. pylori infection and histologic gastritis in Oman using endoscopy biopsy of the stomach.

Methods: A total of 366 stomach biopsies (171 males and 195 females) were histologically analyzed at Sultan Qaboos University Hospital, Muscat, Sultanate of Oman, between 2007 and 2010, using haematoxylin and eosin, Giemsa and Alcian blue / periodic acid-Schiff stains.

Results: Out of 366 cases, 110 (30.1%) were positive for H. pylori infection. Out of 110, 76 cases were associated with active chronic gastritis, 32 cases with chronic gastritis and one case each with gastric carcinoma and normal histological features. The maximum number of H. pylori organisms was found among young (26 – 44 years) and middle age (45 – 59 years) groups, 34.5% and 30.9%, respectively. H. pylori was present in 36.9% females and in 22.2% of males. 40.9% of H. pylori was found in the gastric antrum site, and the gastric cardia was free of H. pylori.

Conclusion: H. pylori associated active chronic gastritis is the most common form of stomach diseases encountered in this study. In addition, female, young and middle age group and gastric antrum had the highest frequency of H. pylori organisms. J Dig Endosc 2013;4(2):29-32)
Thermal annealing induced structural, optical and electrical properties change in As40Se60-xBix chalcogenide thin films
Authors: Behera Mukta , Mishra N. C. , Naik Ramakanta , Sripan C. , Ganesan R.
Published: September 2019

This work reports the formation of topological Bi2Se3 phase upon annealing higher % of Bi content in amorphous As40Se60-xBix (x = 2, 7, 10 and 15%) chalcogenide thin films prepared by thermal evaporation process. The phase identification was done by X-ray diffraction study and Field emission scanning electron microscopy studies confirm the phase transformation in As40Se45Bi15 thin film. The Raman measurements indicated the formation of crystalline As4Se4 and Bi2Se3 phase with annealing at 473K and the indirect optical band gap were found to decrease with increase in Bi concentration on thermal annealing as probed from the optical measurement. The changes in optical parameters were described on the basis of the density of localized states and the electrical resistance was found to be decreased which has been measured at room temperature by using the two-point probe technique.
Coulomb effects on thermally induced shuttling of spin-polarized electrons
Authors: Ilinskaya O. A. , Shkop A. D. , Radic D. , Park H. C. , Krive I. V. , Shekhter R. I. , Jonson M.
Published: September 2019

A thermally driven single-electron transistor with magnetic leads and a movable central island (a quantum dot) subject to an external magnetic field is considered. The possibility of a mechanical instability caused by magnetic exchange interactions between spin-polarized electrons in this system was studied by the density matrix method. We proved analytically that for noninteracting electrons in the dot there is no such mechanical instability. However, for finite strengths of the Coulomb correlations in the dot we numerically found critical magnetic fields separating regimes of mechanical instability and electron shuttling on the one hand and damped mechanical oscillations on the other. It was shown that thermally induced magnetic shuttling of spin-polarized electrons is a threshold phenomenon, and the dependence of the threshold bias temperature on model parameters was calculated.
Manifestation of Spin Correlations in Monocrystalline ErAl3(BO3)4
Authors: Bedarev V. A. , Merenkov D. N. , Kobets M. I. , Zvyagin A. A. , Poperezhai S. N. , Gnatchenko S. L. , Zajarniuk T. , Vasevych T. , Gutowska M. U. , Szewczyk A. , Gudim I. A.
Published: September 2019

A substantial magnetic contribution into specific heat capacity is found in monocrystalline ErAl3(BO3)4 at temperatures below 5 K. The results of measured ESR spectra at 4,2 K confirm manifestation of short-range magnetic order as well. The obtained data is discussed invoking the model accounting for spin-spin interaction between rare-earth ions in paired clusters.
The accuracy of a popular quantum hydrodynamic plasma model
Authors: Kim Meeri
Published: September 2019

A new article investigates the accuracy of a popular hydrodynamic model based on time-independent density functional theory, finding that it should only be used for the high-frequency regime.
Translating ancient Chinese legal works
Authors: Dai Yongjun , Wei Xiangqing
Published: September 2019

The notion of narrative is a very productive concept in many disciplines, and it has been introduced and applied effectively in translation studies, where the specific narrative typology and narrative features are drawn and outlined. Based on the understanding of translation and the analysis of narrative features by Baker, this paper examines the issues in translating ancient Chinese legal works. The default narrative features in ancient Chinese legal works are firstly given a detailed explanation, then the challenges to the Western sinologists in re-narrating ancient Chinese legal stories, especially for the purposes of constructing a “moral” world for the Western readers. For the purpose of successful communication, the fundamental elements in Chinese legal tradition should be given more attention. Thus a contextualized narrative strategy is proposed for application in translating ancient Chinese legal works. For successful communication, it requires on the part of the narrator a degree of creative adaptation.
Treaty of Zohab, 1639: Foundational Myth or Foundational Document?
Authors: Ateş Sabri
Published: September 2019

Beginning with their first confrontation in 1514, the Ottomans and the dynasties ruling over Iran fought over the borderlands extending from the Persian Gulf to Mount Ararat. The transformation of this indeterminate borderland into a clearly defined and increasingly monitored border took almost four centuries. It became an internationally recognized border only after seven decades (1843–1914) of intermittent work by mixed international commissions. Despite such a tangled history, a well-entrenched tradition of Middle Eastern history suggests that the Iranian–Ottoman frontier was firmly established by the Qasr-i Shirin/Zohab Treaty of 1639; and it is one of the oldest boundaries of the world. The myth of 1639 is powerfully enshrined in the historiographies and nationalisms of the countries sharing this boundary. Questioning this myth in the light of Ottoman–Iranian relations, this paper analyzes different versions of 1639 Treaty that were brought to boundary negotiations and exist in various chronicles, and suggests an alternative reading of this foundational myth.
Using the telecoupling framework to improve Great Lakes fisheries sustainability
Authors: Carlson Andrew K. , Taylor William W. , Liu Jianguo
Published: September 2019

Fisheries are coupled human and natural systems across space and time, involving movements of fish, money, and information in a globalized world. However, these social-ecological interactions over local to global scales are largely absent from the fisheries literature, as fisheries research to date has often been discipline- and location-specific. We analyzed this knowledge gap by using an emerging coupled human and natural systems research paradigm – the telecoupling framework – to investigate social-ecological interactions over distances (i.e. telecouplings) in the Great Lakes salmonine (i.e. Coho Salmon Oncorhynchus kisutch, Chinook Salmon O. tshawytscha) fishery. Since the 1960s, this fishery has involved telecoupled movements of fish, money, and information over relatively long distances facilitated by numerous individual and organizational agents. These telecouplings have been characterized by diverse social-ecological causes (e.g. decline of commercial fisheries, rising incomes and greater leisure time for recreational fishing) and effects (e.g. salmonine stocking, creation of angling- and tourism-based economies). Telecouplings are critical for fisheries professionals to consider because they promote holistic understanding of fisheries management while occasionally confounding conservation efforts (e.g. salmonine stocking spreads diseases and parasites and changes fish community structure and genetic integrity). Hence, fisheries professionals will benefit from using the telecoupling framework to optimize favorable and reduce unfavorable telecouplings and thereby enhance fisheries management programs. Overall, the telecoupling framework advances fisheries science by enabling fisheries professionals to systematically understand the causes and consequences of complex social-ecological fisheries interactions and develop informed strategies for sustainable fisheries management and governance throughout the Great Lakes and the world.
On beautiful analytic structure of the S-matrix
Authors: Moroz Alexander , Miroshnichenko Andrey E
Published: September 2019

For an exponentially decaying potential, analytic structure of the s-wave S-matrix can be determined up to the slightest detail, including position of all its poles and their residues. Beautiful hidden structures can be revealed by its domain coloring. A fundamental property of the S-matrix is that any bound state corresponds to a pole of the S-matrix on the physical sheet of the complex energy plane. For a repulsive exponentially decaying potential, none of infinite number of poles of the s-wave S-matrix on the physical sheet corresponds to any physical state. On the second sheet of the complex energy plane, the S-matrix has infinite number of poles corresponding to virtual states and a finite number of poles corresponding to complementary pairs of resonances and anti-resonances. The origin of redundant poles and zeros is confirmed to be related to peculiarities of analytic continuation of a parameter of two linearly independent analytic functions. The overall contribution of redundant poles to the asymptotic completeness relation, provided that the residue theorem can be applied, is determined to be an oscillating function.
Paired test of matrix graphs and brain connectivity analysis
Authors: Ye Yuting , Xia Yin , Li Lexin
Published: September 2019

Inferring brain connectivity network and quantifying the significance of interactions between brain regions are of paramount importance in neuroscience. Although there have recently emerged some tests for graph inference based on independent samples, there is no readily available solution to test the change of brain network for paired and correlated samples. In this article, we develop a paired test of matrix graphs to infer brain connectivity network when the groups of samples are correlated. The proposed test statistic is both bias corrected and variance corrected, and achieves a small estimation error rate. The subsequent multiple testing procedure built on this test statistic is guaranteed to asymptotically control the false discovery rate at the pre-specified level. Both the methodology and theory of the new test are considerably different from the two independent samples framework, owing to the strong correlations of measurements on the same subjects before and after the stimulus activity. We illustrate the efficacy of our proposal through simulations and an analysis of an Alzheimer’s Disease Neuroimaging Initiative dataset.