bluuebunny/crossref_metadata_2025_split huggingface dataset:
Corrosion Resistance of indigenously Fabricated Dental Magnets for Application in Prosthodontics
Authors: Nadiger Ramesh K , Guttal Satyabodh S 
Published: July 2017

ABSTRACT

Aim
The aim of the study is to evaluate the corrosion resistance of the indigenously fabricated dental magnet.

Materials and methods
The Teflon-encased Neodymium-Iron-Boron (Nd–Fe–B) magnet was put to test to comply with the standardized conditions. The corrosion behavior was examined using the statistical immersion analysis according to the International Organization for Standardization (ISO) 10271:2001: “Dental metallic materials corrosion test methods.” In this method, the maximum ion release after 7 days was evaluated. The test specimen (magnet) was dipped in corrosive solution for 7 days in polypropylene test tube. Both the control and test magnets were dipped in artificial saliva. The pH of artificial saliva was adjusted to 6.75. After 7 days, the eluate solution was subjected to inductively coupled plasma spectroscopy evaluation to trace the amount of metal ions leached out from the magnets.

Results
The mean values for Nd, Fe, and B were 329, 532, and 316 µg/cm2 respectively. According to the ISO standards, the tested product values of ions leached out should be within the value of 200 µg/cm2. The release of corrosion products stayed significantly under the limit as specified by the ISO standard 22674:2006 for all the specimens in the test groups.

Conclusion
Within the limitations of the study, the indigenously fabricated dental magnet had negligible corrosion in comparison with the control group.

Clinical significance
Magnetic attachments have most commonly been used for the retention of mandibular overdentures. Patients with magnet-retained overdentures have reported a high degree of satisfaction with their dentures. Due to the lack of indigenous fabrication and high costs of imported magnet has led to restricted use of magnets in developing countries. Indigenously developed dental magnets can reduce the cost and make them affordable to our native population. The abutment-friendly benefits of magnetic attachment will help retain the removable prostheses effectively.

How to cite this article
Guttal SS, Nadiger RK. Corrosion Resistance of indigenously Fabricated Dental Magnets for Application in Prosthodontics. Int J Prosthodont Restor Dent 2017;7(2):48-52.
Evaluation of Destaining Property of Denture Cleansers on Heat-cured Denture Base Resins using Common Indian Food Stains
Authors: Gopalakrishnan Sandhya , Kashinath KR , Mathew Philip 
Published: July 2017

ABSTRACT

Aim
To compare the efficacy of two different denture cleansers in removing tea and paan stains from conventional and high-impact heat-cured denture base resins and also to find out the duration of contact required by the dentures with cleansers, for best results.

Materials and methods
A total of 80 specimens (40 conventional and 40 high impact) were fabricated. The samples were stained with tea and paan solutions. Stained samples were subjected to immersion in denture cleansers, namely Dentural (sodium hypochlorite) and Fitty Dent (sodium perborate). Optical density values were measured using spectrophotometer at prestain, poststain, postcleansing 15 minutes, postcleansing 8 hours, and post cleansing brushing. The data were analyzed statistically.

Results
High-impact denture base resins stained more than the conventional denture base resin. Staining potential of paan solution was higher than that of tea solution. Dentural (sodium hypochlorite) is superior to Fitty Dent (sodium perborate) in the removal of stains at postcleaning 15 minutes and 8 hours immersion time in both the denture bases and 8 hours immersion time is better.

Conclusion
Both cleansers were effective in removing stains from denture surface, and Dentural is a better cleanser than Fitty Dent for all the postcleansing stages.

Clinical significance
Adequate removal of extrinsic stains from denture surface is essential for the health of the supportive area. The clinician must suggest an acceptable cleansing regime to the patient.

How to cite this article
Gopalakrishnan S, Kashinath KR, Mathew P. Evaluation of Destaining Property of Denture Cleansers on Heat-cured Denture Base Resins using Common Indian Food Stains. Int J Prosthodont Restor Dent 2017;7(2):53-59.
PEDAGOGIA DO ESPORTE E TÊNIS DE MESA: NOVAS PERSPECTIVAS NO ENSINO-TREINO DO EFEITO NA INICIAÇÃO ESPORTIVA TARDIA
Authors: Belli Taisa , Ginciene Guy , Bernardes de Castro Lívia , Calheirana Soati Kelly , Shoiti Misuta Milton , Rafaela Galatti Larissa 
Published: July 2017

RESUMOO ensino do tênis de mesa permanece sustentado pelo método tradicional de ensino, que se baseia nas teorias empiristas e inatistas, também denominada metodologia analítica/tecnicista. Nos últimos anos, algumas propostas tem buscado superar esse tipo de abordagem, no entanto, nenhuma delas trata do ensino dos efeitos na perspectiva das tendências atuais da Pedagogia do Esporte. O efeito é um dos principais fatores que tem um papel significativo para vencer uma partida de tênis de mesa. Este ensaio bibliográfico de caráter descritivo-propositivo, portanto, tem por objetivo discutir o ensino do tênis de mesa pautado nessas tendências atuais, contextualizando-o com os demais esportes de rede divisória, em especial os de raquete, focando no ensino-treino do efeito e exemplificando alguns tipos de jogos.Palavras-chave: Pedagogia do Esporte; Tênis de mesa; Efeitos. ABSTRACTThe teaching of table tennis remains supported by traditional method of teaching, which is based on empiricists and innatists theories, also called analytic/technicist methodology. In recent years, some proposals have been seeking to overcome this approach, however, none addressess the learning of spin based on the current trends of Sport Pedagogy. Spin is one of the main factors that play a significant role in winning table tennis matches. Therefore, this bibliographic, descriptive and propositional study aims to discuss the table tennis teaching based on these current trends, put it into context with other net sports, mainly racket sports, focusing on the teaching-training of spin and giving examples of some types of games.Key words: Sport Pedagogy; Table Tennis; Spin RESUMENLa enseñanza de tenis de mesa sigue siendo apoyado por el método tradicional de enseñanza, que se basa en las teorías empiristas y inatism, también llamados metodología analítica / tecnicista. En los últimos años, algunas propuestas han tratado de superar este tipo de enfoque, sin embargo, ninguno de ellos se refiere a la enseñanza de los efectos de la perspectiva de las tendencias actuales de la Pedagogía del Deporte. El efecto es uno de los principales factores que tienen un papel importante en ganar un partido de tenis de mesa. Este ensayo bibliográfico de carácter descriptivo-proposicional, por lo tanto, tiene como objetivo discutir la enseñanza de tenis de mesa en base a estas tendencias actuales, la contextualización con los otros deportes de red, en particular la raqueta, se centra en la enseñanza y la formación efectuar y ejemplificar algunos tipos de juegos.Palabras clave: Pedagogía del Deporte; Tenis de mesa; Efectos
Trastornos del Lenguaje en el Adulto
Authors: Donoso Archibaldo , González Victoriano Rafael 
Published: July 2017

El presente trabajo tiene por objetivo principal describir los trastornos del lenguaje en el adulto a consecuencia de un daño cerebral. Las alteraciones del lenguaje oral se abordarán considerando los siguientes tópicos: Algunos conceptos lingüísticos básicos para describir con exactitud las alteraciones del lenguaje; el sistema funcional del lenguaje en el que participan áreas persilvianas, hemisferio derecho y zonas prefrontales; las afasias que son un trastorno parcial o total del lenguaje; los pacientes afásicos considerando sus antecedentes clínicos, la actitud frente al defecto, el deterioro intelectual y otros defectos asociados; el tratamiento de las afasias que tiene por objetivo que el paciente logre una comunicación funcional y una adaptación psicosocial en relación a la alteración de lenguaje y por último, los trastornos del discurso que comprometen especialmente su contenido y su uso. En relación a las alteraciones del lenguaje lectoescrito se describirán los diferentes tipos de agrafias y alexias. Finalmente, cabe señalar dos aspectos, el primero, es que además de las afasias existen otros trastornos del lenguaje y el segundo, es que la evaluación del lenguaje es fundamental para el manejo y la rehabilitación del paciente.
El uso del artículo en niños hispanohablantes con trastorno específico del lenguaje
Authors: Auza B. Alejandra , Morgan P. Gareth 
Published: July 2017

Los niños hispanohablantes con desarrollo típico del lenguaje (DTL) y los menores con Trastorno Específico/Primario del Lenguaje (TEL/TPL) en edades escolares continúan cometiendo errores semánticos y pragmáticos que generan omisiones y sustituciones del artículo. Los artículos definidos parecen ser vulnerables a pesar de la variabilidad metodológica y de las diferencias socioculturales y lingüísticas de las investigaciones previas respecto del tema. El objetivo de esta investigación es analizar el uso de los artículos en individuos con TEL. Participaron 45 niños monolingües, hablantes de español, habitantes de México entre 4;0 y 8;0: 1) 15 niños con TEL; 2) 15 niños juntados por edad con DTL; 3) 15 niños juntados por lenguaje con DTL. La tarea experimental consistió en la presentación de juguetes organizados por clases semánticas, las que fueron acompañadas por preguntas que provocaran el uso de artículos definidos, indefinidos y sustantivos escuetos. Los niños con TEL usaron significativamente menos artículos definidos y menos funciones semánticas (roles y sustantivos genéricos) que los grupos con DTL. No se encontraron diferencias significativas en otras funciones (parte - todo o comunes). Los artículos indefinidos y sustantivos escuetos fueron usados en la misma proporción. En la discusión se explica la dificultad de ciertas funciones semánticas abstractas, en contraste con aquellas funciones ligadas a entidades concretas. Este estudio contribuye a comprender los patrones de uso de los artículos, para su inclusión en futuras pruebas de identificación del TEL en español.
Clinical pearls: Laboratory assessments of direct oral anticoagulants (DOACS)
Authors: Douxfils Jonathan , Adcock Dorothy , Gosselin Robert 
Published: July 2017

SummaryDirect oral anticoagulants (DOACS) are being used for stroke prevention in patients with atrial fibrillation as well as for prophylaxis and treatment of venous thromboembolism. Clinicians who treat, or may encounter, patients with DOAC exposure, should be aware of the limitations of coagulation testing in this setting, and seek counsel from their laboratory to understand the effects of DOACS on coagulation results. Generally, assays that employ clot based principles, or methods that require thrombin or Factor Xa activation or substrates may be affected by the presence of DOACS. The clinical laboratory should have an algorithmic testing plan for adequately assessing the presence of all DOACS and readily provide this information to clinicians. We describe Clinical Pearls for DOAC assessment using common and esoteric coagulation testing.
Conjugate observation of auroral finger‐like structures by ground‐based all‐sky cameras and THEMIS satellites
Authors: Nishi Katsuki , Shiokawa Kazuo , Frühauff Dennis 
Published: July 2017

AbstractIn this study, we analyze the first conjugate observation of auroral finger‐like structures using ground‐based all‐sky cameras and the Time History of Events and Macroscale Interactions during Substorms (THEMIS) satellites and investigated associated physical processes that are a cause of auroral fragmentation into patches. Two events are reported: one is a conjugate event, and the other is a nearly conjugate event. The conjugate event was observed at Narsarsuaq (magnetic latitude: 65.3°N), Greenland, at 0720–0820 UT (0506–0606 LT) on 17 February 2012. Analysis of the event revealed the following observational facts: (1) variation of parallel electron energy fluxes observed by THEMIS‐E shows a correspondence to the auroral intensity variation, (2) plasma pressure and magnetic pressure fluctuate in antiphase with time scales of 5–20 min, and (3) perpendicular ion velocity is very small (less than 50 km/s). In the latter event, observed at Gakona, Alaska, on 2 February 2008, the THEMIS‐D satellite passed across higher latitudes of finger‐like structures. The data from THEMIS‐D also showed the antiphase fluctuation between plasma pressure and magnetic pressure and the small perpendicular ion velocity. From these observations, we suggest that the finger‐like structures are caused by a pressure‐driven instability in the balance of plasma and magnetic pressures in the magnetosphere.
How are warm and cool years in the California Current related to ENSO?
Authors: Fiedler Paul C. , Mantua Nathan J. 
Published: July 2017

AbstractThe tropical El Niño‐Southern Oscillation (ENSO) is a dominant mode of interannual variability that impacts climate throughout the Pacific. The California Current System (CCS) in the northeast Pacific warms and cools from year to year, with or without a corresponding tropical El Niño or La Niña event. We update the record of warm and cool events in the CCS for 1950–2016 and use composite sea level pressure (SLP) and surface wind anomalies to explore the atmospheric forcing mechanisms associated with tropical and CCS warm and cold events. CCS warm events are associated with negative SLP anomalies in the NE Pacific—a strong and southeastward displacement of the wintertime Aleutian Low, a weak North Pacific High, and a regional pattern of cyclonic wind anomalies that are poleward over the CCS. We use a first‐order autoregressive model to show that regional North Pacific forcing is predominant in SST variations throughout most of the CCS, while remote tropical forcing is more important in the far southern portion of the CCS. In our analysis, cool events in the CCS tend to be more closely associated with tropical La Niña than are warm events in the CCS with tropical El Niño; the forcing of co‐occurring cool events is analogous, but nearly opposite, to that of warm events.
Fatal and non‐fatal animal‐related injuries and illnesses to workers, United States, 2011‐2014
Authors: Barros Nirmalla , Langley Ricky 
Published: July 2017

BackgroundStudy provides update of national estimates for work‐related fatal injuries and non‐fatal injuries and illnesses by animals in US.MethodsBetween 2011 and 2014, injuries and illnesses were retrieved from US Department of Labor and were translated to economic losses using National Safety Council estimates.ResultsTotal of 222 fatalities (36% by cattle and other bovines) and 71 460 non‐fatal injuries and illnesses (38% by insects, arachnids, mites) were identified from animal sources. For non‐fatal injuries and illnesses from primary animal sources, annual incidence rates were 1.5‐1.6/10 000 full‐time workers and annual median days lost from work were 3‐4 days. Work‐related costs were $222M for fatalities and $2.8B for non‐fatal injuries and illnesses that resulted in at least 1 day lost from work.ConclusionsStudy provides evidence of specific animals contributing to more severe injuries and potential for more severe injuries when there is more than one source of injury.
Crystalline Diuranium Phosphinidiide and μ‐Phosphido Complexes with Symmetric and Asymmetric UPU Cores
Authors: Rookes Thomas M. , Gardner Benedict M. , Balázs Gábor , Gregson Matthew , Tuna Floriana , Wooles Ashley J. , Scheer Manfred , Liddle Stephen T. 
Published: July 2017

AbstractReaction of [U(TrenTIPS)(PH2)] (1, TrenTIPS=N(CH2CH2NSiPri3)3) with C6H5CH2K and [U(TrenTIPS)(THF)][BPh4] (2) afforded a rare diuranium parent phosphinidiide complex [{U(TrenTIPS)}2(μ‐PH)] (3). Treatment of 3 with C6H5CH2K and two equivalents of benzo‐15‐crown‐5 ether (B15C5) gave the diuranium μ‐phosphido complex [{U(TrenTIPS)}2(μ‐P)][K(B15C5)2] (4). Alternatively, reaction of [U(TrenTIPS)(PH)][Na(12C4)2] (5, 12C4=12‐crown‐4 ether) with [U{N(CH2CH2NSiMe2But)2CH2CH2NSi(Me)(CH2)(But)}] (6) produced the diuranium μ‐phosphido complex [{U(TrenTIPS)}(μ‐P){U(TrenDMBS)}][Na(12C4)2] [7, TrenDMBS=N(CH2CH2NSiMe2But)3]. Compounds 4 and 7 are unprecedented examples of uranium phosphido complexes outside of matrix isolation studies, and they rapidly decompose in solution underscoring the paucity of uranium phosphido complexes. Interestingly, 4 and 7 feature symmetric and asymmetric UPU cores, respectively, reflecting their differing steric profiles.
A capable cobalt nano‐catalyst for the N‐formylation of various amines and its biological activity studies
Authors: Habibi Davood , Heydari Somayyeh , Afsharfarnia Mina 
Published: July 2017

The Fe3O4 magnetic nanoparticles (Fe3O4 MNPs) were modified with 1,10‐phenanthroline‐5,6‐diol and the relevant Co complex (Fe3O4@Phendiol@Co) synthesized as a nano‐magnetic heterogeneous catalyst to be used for the N‐formylation of various amines at room temperature under solvent‐free conditions. Also, in order to find the better concept of the catalyst role, the N‐formylation reaction was carried out by the use of ultrasound irradiation in the absence of the Co nano‐catalyst and the results were compared. The catalyst characterized by different methods such as the elemental analysis (CHN), ICP, FT‐IR, XRD, EDX, SEM, TEM, TG‐DTA, VSM and XPS. In addition, the antioxidant and the antibacterial activities of the Fe3O4@Phendiol@Co nano‐catalyst and its Phendiol ligand were in vitro screened by 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) free radical scavenging and disc diffusion methods. Results showed that they possess strong antioxidant activity (IC50; 0.182 ± 0.006 mg/ml) and good antibacterial potential in comparison to standards.
Structural designing, spectral and computational studies of bioactive Schiff's base ligand and its transition metal complexes
Authors: Gautam Seema , Chandra Sulekh , Rajor Hament , Agrawal Swati , Tomar Praveen Kumar 
Published: July 2017

AbstractTransition metal complexes of Mn(II) and Ni(II) have been synthesized with novel bioactive Schiff's base ligand. Schiff's base ligand i.e. benzoylacetone‐bis(2‐amino‐4‐methylbenzothioazole) has been synthesized via condensation reaction between 2‐amino‐4‐methylbenzothioazole and benzoylacetone in 2:1 ratio, respectively. Synthesized ligand has been characterized using elemental analysis, infra‐red, 1H–NMR and mass spectroscopy techniques. Characterization of complexes was based on magnetic moment, molar conductance, elemental analysis, electronic spectra, infra‐red and EPR spectroscopic techniques. Molar conductance data suggest that metal complexes are non‐electrolytic in nature. Therefore, these complexes are formulated as [M(L)X2], where M = Mn(II), Ni(II), L = Schiff's base ligand, X = Cl−, CH3COO−, NO3−. Data of characterization study suggest octahedral geometry for Mn(II) and Ni(II) complexes. Geometry of metal complexes was also optimized with the help of computational study i.e. molecular modelling. Computational study also suggests octahedral geometry for complexes. Free ligand as well as its all metal complexes have been screened against the growth of pathogenic bacteria (E.coli, S.aureus) and fungi (C.albicans, C.krusei, C.parapsilosis, C.tropicalis) to assess their inhibition potential. The inhibition data revealed that metal complexes exhibit higher inhibition potential against the growth of bacteria and fungi microorganisms than free ligand.
Synthesis of soluble and meltable pre‐ceramic polymers for Zr‐containing ceramic nanocomposites
Authors: Long Xin , Shao Changwei , Wang Jun , Gou Yanzi 
Published: July 2017

Polymer‐derived methods are one of the most important tools for the synthesis of ceramics with a finely dispersed microstructure. In this study, a soluble and meltable ZrC/C pre‐ceramic polymer, P‐DACZ, (which would later exhibit a high ceramic yield of 71 wt%) was synthesized via radical polymerization. By adding low molecular weight polycarbosilane in any proportion during the radical polymerization process of P‐DACZ, a soluble and meltable ZrC/SiC/C pre‐ceramic precursor, PCS‐DACZ (which would later exhibit a high ceramic yield of >80 wt%) was synthesized. After annealing at 1400 °C under an argon flow, the precursors converted into bulk ZrC/C and ZrC/SiC/C ceramic nanocomposites. The ZrC nanoparticles could resist any grain growth when heat‐treated at temperatures above 1800 °C because the C or SiC matrix prevented long‐range atomic diffusion of zirconium. Such ceramic nanocomposites would be suitable for structural and (multi)functional applications at harsh environments with high temperatures.
From morphology of attrited copper/MWCNT hybrid fillers to thermal and mechanical characteristics of their respective polymer‐matrix composites: An analytical and experimental study
Authors: Badakhsh Arash , Park Chan Woo 
Published: July 2017

ABSTRACTSynergistic effect of copper and multiwalled carbon nanotube on thermal and mechanical properties of high‐density polyethylene (HDPE)‐matrix composite was evaluated. Attrition mill was employed to prepare the hybrid powder. Reinforcing the polymer‐matrix was carried out using different contents of simultaneously (Sim) and separately (Sep) milled powders as hybrid fillers. X‐ray diffraction and microscopy results show different trends of particle size for Sep and Sim affected by both milling time and volume fraction ratio. Thermal characterization indicates that conductivity was enhanced by 90% and thermal expansion was reduced to 53% of neat HDPE. Young's modulus and tensile strength were improved by 7.8 and 1.22 times of neat HDPE, respectively. Also, characteristics of Sim‐reinforced composites exhibited better correlated relation with milling time compared with erratic behavior of Sep. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45397.