bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on the Key Problems of UHVAC/DC Power Grids with New Generation Large Synchronous Condenser
Authors: Fan Xiao , Kunpeng Zhou , Tao Wang , Kan Cao , Yuze Rao 
Published: October 2018

In order to cope with the great pressure caused by the gradually exhaustion of fossil energy and environmental protection and climate warming, the development and application of the renewable energy has become an important foundation and development direction in the field of energy. However, due to the impact of energy and resource endowment, China’s load center and renewable energy base into the characteristics of long-range reverse distribution, the use of long-distance large-capacity transmission potential is necessary. With the “strong DC system and weak AC system” problem of the company power grid is increasingly prominent, the higher demand of dynamic reactive power support is put forward in the UHV DC power transmission project. Then, the large-capacity dynamic reactive power of new generation synchronous condenser is large-scale built up in the UHV DC/AC power system.
Due to the high requirement of response speed and capacity in the UHV DC power transmission, the structure, dynamic characteristics, excitation control and relay protection and other aspects of the large synchronous condenser are different from generators and traditional synchronous condenser. Based on this, the dynamic reactive power demand of UHV DC power system is analyzed in this paper. Then, the main situation of large synchronous condenser is considered. In addition, the key points of the excitation control system and protection system are also discussed in this paper. There are important theoretical and practical significance for the safe and reliable operation of the UHV DC/AC power system.
Erwartungen und Informationsbedarf von Rehabilitanden bezüglich stationärer psychosomatischer Rehabilitation
Authors: Schury Katharina , Beutel Manfred E. , Gerzymisch Katharina , Schattenburg Lothar , Siepmann Martin , Schmädeke Stefan , Zwerenz Rüdiger 
Published: October 2018

Zusammenfassung
Ziel der Studie Um ein Online-Portal zur Vorbereitung auf die stationäre psychosomatische Rehabilitation zu entwickeln, wurden Informationsbedarf und Online-Nutzungsverhalten von Rehabilitanden untersucht.
Methodik Vier Fokusgruppen mit Rehabilitanden (N=31) sowie zwei mit Behandlern (N=18) wurden durchgeführt und qualitativ-inhaltsanalytisch ausgewertet.
Ergebnisse Insgesamt wurden 419 Aussagen von Rehabilitanden und 333 Aussagen von Behandlern kodiert und kategorisiert. Aktuelle Informationsmaterialien zur Rehabilitation wurden von Rehabilitanden als zu ausführlich und schwer verständlich eingeschätzt. Unsicherheit bestand vor allem hinsichtlich der Wirksamkeit und Nachhaltigkeit der Behandlung. Rehabilitanden und Behandler unterschieden sich dahingehend, dass die Behandler von Kurerwartungen ihrer Rehabilitanden ausgingen, während diese eher von einer aktiven Bewältigungsorientierung berichteten.
Schlussfolgerung Online-Portale zur Vorbereitung sollten durch anschauliche Fallbeispiele insbesondere auf die Wirksamkeit und Nachhaltigkeit der psychosomatischen Rehabilitation eingehen.
Sicherheit erfahren, ohne den Halt zu verlieren
Authors: Eppler Sonja , Brutscher Petra 
Published: October 2018

ZusammenfassungDer Transfer aus dem Inkubator stellt Pflegende wie auch das Frühgeborene vor eine große Aufgabe. Das Kind verlässt die haltgebende Unterstützungsfläche und wird
durch den Raum getragen, es muss sich im ungewohnten Feld der Schwerkraft mit seinem ganzen Körper organisieren. Die gewohnte Schwerelosigkeit des Fruchtwassers
ist nicht mehr da. Der sichere, den ganzen Körper umfassende Halt, den es durch die Gebärmutterwände erfahren hat, existiert nicht mehr. Die Pflegende verfolgt
das Ziel, dem Kind Sicherheit und Geborgenheit zu vermitteln, um Stress und Schmerzen zu vermeiden.
Was möglich ist, ist nicht immer das Beste – und nun?
Authors: Lohmann Heike 
Published: October 2018

ZusammenfassungEthische Fragestellungen nehmen in der pflegeberuflichen Praxis einen großen Raum ein. Durch zunehmende medizinische und technische Möglichkeiten kommt es zum
Beispiel auch zu mehr Konflikten im Kontext der lebensverlängernden Maßnahmen. Damit einher geht die Frage nach Verantwortung zum Umgang mit ethischen
Konfliktsituationen bzw. beim Aufkommen ethischer Fragen. Werden diese nicht gelöst, führen sie zu massiven Belastungen – sowohl in der pflegeberuflichen Praxis
als auch im multiprofessionellen Team. Eine Möglichkeit des strukturierten Umgangs mit ethischen Konfliktsituationen bzw. Fragen und damit eine Unterstützung
für alle Beteiligten ist die Inanspruchnahme einer Ethikberatung, die beispielsweise mittels einer ethischen Fallbesprechung durchgeführt werden kann.
Tuberculosis miliar y orquiepididimitis tuberculosa en un paciente inmunocompetente: reporte de caso
Authors: Pardo Lizeth , Guitierrez Carolina , Bayona Jorge , Nieto Fernando 
Published: October 2018

ResumenLa tuberculosis genitourinaria es la segunda forma de presentación más común de tuberculosis extrapulmonar luego del compromiso ganglionar, la epididimitis tuberculosa afecta preferentemente a pacientes con edades comprendidas entre los 30 y 50 años, y al menos un 70% tienen historia previa de tuberculosis pulmonar, la infección tuberculosa del escroto es rara y ocurre en aproximadamente el 7% de los pacientes con tuberculosis por extensión directa desde el epidídimo, planteando problemas de diagnóstico diferencial con procesos más agresivos como las neoplasias testiculares. Reportamos el caso de un hombre de 23 años con masa testicular que emulaba ser de origen neoplásico, llevado a orquidectomía unilateral. La patología describe necrosis y granulomas de caseificación conclusivo para orquiepididimitis tuberculosa, paciente inmunocompetente sin antecedente previo de tuberculosis.
A Confocal Laser Scanning Microscopic Study Evaluating the Sealing Ability of Mineral Trioxide Aggregate, Biodentine and Anew Pulp Capping Agent-Theracal
Authors: Makkar Sameer , Kaur Harpreet , Aggarwal Anurag , Vashisht Ruchi 
Published: October 2018

Abstract
Aims and Objectives: Viability and health of the pulpal tissue after an exposure can be stimulated with biocompatible pulp capping materials. Mineral trioxide aggregate(MTA), though biocompatible with excellent sealing ability, has clinical disadvantages like poor handling properties and long setting time. New pulp capping agents- Biodentine and Theracal have proven to overcome MTA’s shortcomings. This study aimed to comparatively evaluate the sealing ability of Mineral Trioxide Aggregate(Angelus), Biodentine (Septodont) and Theracal(Bisco) when used as pulp capping agents. Materials and Methods: Occlusal cavities were prepared in extracted human third molars. The cavities were divided into 3 groups containing 12 samples each. Pulp capping in samples of group I, II and III was done with MTA, Biodentine and Theracal respectively. All samples were kept in a damp environment for 24 hrs. In each tooth, the root was cut just below the cementum-enamel junction. An aqueous 0.25% solution of Rhodamine-B was put in the open pulp chambers of all the samples and placed upside-down in a damp environment. The dye was left for 3 hrs to permeate toward the interface. After being stained, all samples were rinsed with distilled water and sectioned vertically. A Confocal Laser Scanning Microscope was used to image the samples. Results: No significant difference was found in interfacial microleakage between MTA and Biodentine. Theracal exhibited less interfacial microleakage than the two. Conclusion: Biodentine and MTA exhibit an efficient and durable protection of pulp. Theracal exhibits better sealing ability as a pulp capping agent than MTA and Biodentine.
In–Vivo Clinical Evaluation of Regenerative Endodontics in Immature Necrotic Permanent Teeth With Open Apex
Authors: Lata Prem , Chhabra Ajay , Jindal Varun , Thakur Arun ,   Damanpreet
Published: October 2018

Abstract
Introduction: This study was conducted to evaluate clinical and radiographic findings induced by revascularization with and without platelet-rich plasma (PRP). Methods: Twenty patients with nonvital, immature anterior teeth were randomly categorized into 2 groups. Subsequent to minimal instrumentation of the root canal, disinfection was achieved with ledermix paste and followed by revascularization with and without PRP in groups 1 and 2, respectively. The cases were followed up clinically and radiographically at 6- and 12-month intervals. Results: Clinically, all cases were asymptomatic with complete resolution of signs and symptoms (except four cases which were considered as dropout). Radiographically, there was no significant difference in periapical healing, apical closure, and dentinal wall thickening in group I in comparison with group II. However, root lengthening was comparable for both of the procedures. Conclusions: Revascularization is a conservative and an effective method for inducing maturogenesis in nonvital, immature teeth. Supplementations with PRP can potentially improve the desired biological outcome of this regenerative procedure.
The Impact of Stem Cells on Dentistry – A Review
Authors: Singla Marry , Dua Vinay , Reddy A ,   Ashutosh
Published: October 2018

AbstractRecent studies suggest that Stem Cells being used for a number of regenerative diseases. Stem cells can self-renew and produce different cell types, thus providing new strategies to regenerate missing tissues and treat diseases. In the field of dentistry, adult mesenchymal stem/stromal cells (MSCs) have been identified in several oral tissues, which suggests that the oral tissues are a rich source of stem cells, and oral stem and mucosal cells are expected to provide an ideal source for genetically reprogrammed cells such as induced pluripotent stem (IPS) cells. Furthermore, oral tissues are expected to be not only a source but also a therapeutic target for stem cells, as stem cell and tissue engineering therapies in dentistry continue to attract increasing clinical interest. With appropriate biochemical signals stem cells can be transformed into desirable cells. The idea behind this article is to shortly review the obtained literature on stem cell with respect to their properties, types and advantages of dental stem cells. Emphasis has been given to the possibilities of stem cell therapy including regeneration of tooth and craniofacial defects.
Musculoskeletal Disorders In Dentistry
Authors: Singla Ruby , Gupta Hemant , Kaur Inderpreet , Singla Kapil , Singh Jatinder , Aggarwal Sangeeta 
Published: October 2018

AbstractMusculoskeletal disorders (MSD) represent an important occupational health issue in dentistry. Prolonged static postures, repetitive movements, excessive contraction of short muscles could cause musculoskeletal disorders. Even when the sitting posture is the one recommended by ISO, there is a high risk of developing musculoskeletal disorders. Each member of the dental team is predisposed to pain or injury in different areas of the body, depending on their tasks and position in relation to the patient. MSD is prevalent world over and is one of the commonest causes of long-term pain and disability affecting hundreds of millions of people. This article shows the causes and the mechanisms that lead to musculoskeletal disorders and some methods for prevention.
Root Canal Morphology of Mandibular Premolars in North Indian Population Using Tooth Clearing Technique – An In Vitro Study
Authors: Grewal Gurkirat , Chhabra Ajay , Jindal Varun , Bindra Simran , Chhabra Vandana ,   Damanpreet
Published: October 2018

Abstract
Aim: The aim of this study was to investigate the root canal morphology of mandibular premolars in Northern region of India using adecalcification and clearing technique. Method: Three hundred extracted human mandibular premolars, collected from dental clinics within North India were selected for this study. Following pulp tissue removal, India ink was injected into the root canals and the teeth were decalcified with 5% nitric acid, dehydrated with ascending concentrations of alcohol and rendered clear by immersion in methyl salicylate. Cleared teeth were examined under 5X magnification and the following features were evaluated: (i) number and type of root canals; (ii) presence and location of lateral canals and; (iii) location of apical foramina. Results: 84.2% of the specimens exhibited Type I canal pattern. Type VIII was not observed in any of the specimens. The lateral canals were in the apical third in 78.7% of the specimens followed by middle third in 16.5% and the cervical third in 4.7%. 82.7%of the specimens showed lateral position of the apical foramen. Conclusion: Mandibular premolar teeth present a wide variety of radicular features, with one root and one canal being found in majority of the cases. An accurate knowlegde of the morphology of the root canal is essential for proper diagnosis and successful treatment of endodontic cases.
Effectiveness of Three Rotary Niti Instruments and Hand Instrumentation in Removing Gutta Percha from Root Canals: an in vitro Study
Authors: Jindal Varun , Chhabra Ajay ,   Neelkamal,   Damanpreet
Published: October 2018

Abstract
Objectives: The study aimed to assess variation in the remaining filling material by radiographic analysis and the time taken for retreatment system, with H-files; the ProTaper Universal Retreatment System; Mtwo retreatment system and the SybronEndo K3. Methods: 120 human mandibular premolars with single straight root canals were prepared with rotary twisted files (up to size 40/0.04) using the crown down technique and filled by cold lateral condensation and the radiographs were taken. After one week, teeth were divided into four groups (n = 30). Gutta-percha was removed using H-files, the ProTaper Universal Retreatment System, Mtwo system and the K3 System. After retreatment radiographs were taken for each sample and the remaining material was calculated for each canal third. Results: Rotary NiTi instruments were significantly faster than the hand instrumentation technique in performing the retreatment. In radiographic analysis there was significant difference in between the groups for coronal third in ProTaper group and for apical third in H-file group. Conclusions: In the radiographic analysis the ProTaper Universal System left less filling material in the coronal third and the H-files left less filling material in apical third as compared to other groups. Rotary instruments worked faster than H files.
Knowledge of Dental Practitioners Towards Emergency Management of Avulsed Tooth in Punjab
Authors: Bindra Simran , Sharma Sunila , Chhabra Ajay , Jindal Varun , Nabhi Kamal ,   Damanpreet
Published: October 2018

AbstractDental avulsion is characterized by the complete displacement of the tooth from its socket, with damage to the periodontal ligament, cementum, alveolar bone, gingival and pulp tissues. The ideal treatment for an avulsed permanent tooth is its immediate replantation into the socket. However, in spite of itsrecognized therapeutic value, clinical experience has shown that immediatereplantation rarely occurs due to factors associated to the accident itself, complex damage to the recipient site, or simply lack of knowledgeor confidence of the general population and even professionals about Replantation procedures. The present study was carried out with an aim to assess the level of knowledge of emergency management of avulsed teeth among 209 Dental practitioners in the state of Punjab. The received questionnaires were analysed for the responses. The data showed that the knowledge of dental practitioners in the state was not up to date and efforts should be made to carry out various education programs for the same.
Comparative Evaluation of protective Potential of Toothmin and Novamin Containing Toothpastes on Enamel Surface Under Confocal Microscope: An In Vitro Study
Authors: Aggarwal Anurag , Gupta Shalu , Singh Kanwarpreet , Bindra Simran 
Published: October 2018

Abstract
Aim: To evaluate the protective potential of calcium sucrose phosphate and novamin containing toothpaste on enamel surface. Settings and Design: In vitro-study. Materials and Methods: This study consisted of 30 samples embedded in orthodontic resin with either buccal or lingual surface exposed. The samples were assigned to either calcium sucrose phosphate containing paste; novamine toothpaste; or control group. The groups were then subjected to cycling in a demineralizing solution and a remineralizing solution. Groups II and III received prior application of calcium sucrose phosphate paste and novamine toothpaste respectively followed by cycling in a demineralizing solution and a remineralizing solution. Following 14 days of cycling, the samples were sectioned and examined using confocal microscopy. The depths of lesions were evaluated. Statistical Analysis: Image Proplus software was used to analyze the images. The values were statistically evaluated using one – way ANOVA and Scheffe's Test. Results and Conclusion: Within the limitations of study it was concluded that enamel surfaces treated with calcium sucrose phosphate paste exhibited the least lesion depths followed by enamel surfaces treated with the novamin tooth paste and control group respectively.
Assessment of the Prevalence of Oral Habits in 3-6 Year Old School Going Children in Chandigarh Area
Authors: Verma Leena , Gupta Jyoti , Passi Sidhi 
Published: October 2018

Abstract
Aim: This study was designed to assessthe prevalence of various oral habits among 3-6 years old school childrenin Chandigarh Method: Fifteen different public schools were randomly selected among 45 public schools in Chandigarh area from where 938 children (3-6 yr) were randomly selected (511 boys and 427 girls) with the objectives of recording the prevalence of oral habits. Statistical analysis was carried out using SPSS 10.0 software and the statistical significance of oral habits as related to age groups and sex were calculated by using ANOVA test. Results: The overall prevalence of oral habits in children was 11.7%. Nail biting was the commonest habit (5.5%) followed by thumb sucking (4.05%), tongue thrusting (1.8%), mouth breathing(0.3%) and lip biting(0%). Also, there were no significant differences between boys and girls with respect to prevalence of oral habits. However, a significant difference was observed between different age groups with respect to the prevalence of oral habits. Conclusions: The data revealed that a significant percentage of the children had deleterious oral habits which can contribute towards the development of malocclusion. This helps in identifying children who are in need to intercept the oral habits at earliest to avoid future occurrence of malocclusion.
NSAIDS (Non- Steroidal Anti- Inflammatory Drugs)- Their Effects and Side Effects in Orthodontic Therapy- A Review
Authors: Gargya Isha , Singh Baljeet , Talnia Sanjay 
Published: October 2018

AbstractOrthodontic tooth movement(OTM) is a complex process involving physiologic processes resulting in remodelling changes in the paradental tissues which are essential in orthodontic correction of tooth position. Medications have an influence on tooth movement and information on their consumption is essential to discuss treatment planning with patients. Various drugs either prescribed by the clinician or consumed by the patients enter the circulation and may be inhibitory, additive or synergise with the movement of teeth. Tooth movement through the remeodelling of bone is regulated by prostaglandins(PG) which play a direct role in bone resorption and is adversely affected by the use of NSAIDs(Non- Steroidal anti-inflammatory drugs) with research and clinical experience suggesting that their use slows down tooth movement due to a reduction in the number of osteoclastic cells. Since tooth movement is the key principle behind orthodontic treatment, any factor affecting the biologic response towards applied mechanical force is deemed to affect orthodontic treatment duration as well as efficacy. The purpose of this review article is to update the clinician on the roleof most commonly used pharmaceutical drugs capable of affecting bone metabolism and rate of orthodontic tooth movement so that best therapeutic strategy can be formulated for an individual.
Triticum Aestivum(Wheat Grass); A Power House Plant - A Review
Authors: Hattarki Sanjeevini , Bogar Chetna. 
Published: October 2018

AbstractWheat Grass refers to the young grass of the common wheat plant, Triticum aestivum that is freshly juiced or dried into powder for animal and human consumption. Both provide chlorophyll, amino acids, minerals, vitamins, and enzymes. Wheat grass is a humble weed known as the powerhouse of nutrients and vitamins for the human body. In the form of fresh juice, it has high concentrations of chlorophyll, active enzymes, vitamins and other nutrients. The present review article focuses onto the use of wheatgrass in various disease conditions. It has shown potential anti inflammatory, anti oxidant and anti ageing property Since very few clinical studies have been done on this very promising herbal drug, efforts are needed to conduct extensive studies on the wheat grass both in experimental models and human subjects to develop wheat grass therapy with no side effects in prevention, cure and management of chronic diseases for which our modern systems have lost their hopes.
Increasing Age Is Not Independently Associated with Increased 30-Day Morbidity after Hip Arthroscopy
Authors: Boddapati Venkat , Confino Jamie , Fu Michael , Duchman Kyle , Westermann Robert , Lynch T. 
Published: October 2018

AbstractThe purpose of this study is to examine the 30-day postoperative complications after hip arthroscopy as a function of patient age. The American College of Surgeons National Surgical Quality Improvement Program database from 2005 to 2016 was used to identify all patients undergoing hip arthroscopy using Current Procedural Terminology and International Classification of Disease codes. Patient characteristics and postoperative complications were compared in a retrospective cohort study with a level of evidence 3 across patient age cohorts using bivariate and multivariate analysis that corrected for differences in baseline patient characteristics. In total, 2,427 patients undergoing hip arthroscopy were identified. Of all identified patients, 667 (27.5%) were under 30 years of age, 596 (24.5%) were between 31 and 40, 599 (24.6%) were between 41 and 50, and 566 (23.3%) were older than 50. Chondroplasty, abrasion arthroplasty, and/or resection of the labrum were the most commonly performed procedures in all age groups. As age increased, patients were more likely to be female and have a higher body mass index, more medical comorbidities, a shorter operative duration, and a higher American Society of Anesthesiologists class. The rate of any 30-day postoperative complication was 1.35% in patients under 30 years of age, 1.68% in patients between 31 and 40, 2.67% in patients between 41 and 50, and 5.12% in patients older than 50 (p < 0.001). Older patients also had a higher rate of deep surgical site infections and blood transfusions (p ≤ 0.001). However, no differences were identified with multivariate analysis. While older patients had higher short-term complications following hip arthroscopy, age alone was not an independent predictor of adverse outcomes. Further investigation is necessary to determine the risk factors associated with significant postoperative morbidity in older patients undergoing hip arthroscopy.