bluuebunny/crossref_metadata_2025 huggingface dataset:
Mixed-dimensional 2D/3D heterojunctions between MoS2 and Si(100)
Authors: Choi Hyunsoo , Min Kyung-Ah , Cha Janghwan , Hong Suklyun
Published: October 2018

For utilization of two-dimensional (2D) materials as electronic devices, their mixed-dimensional heterostructures with three-dimensional (3D) materials are receiving much attention.
A facile organosilane-based strategy for direct synthesis of thin MWW-type titanosilicate with high catalytic oxidation performance
Authors: Jin Shaoqing , Tao Guiju , Zhang Shilin , Luo Yi , Fu Wenhua , Wang Zhendong , Gao Huanxin , Sun Hongmin , Yang Weimin
Published: October 2018

A facile organosilane-based synthetic strategy was successfully developed to prepare thin Ti-MWW zeolite with high catalytic oxidation performance.
Incorporation of transuranium elements: coordination of Cm(iii) to human serum transferrin
Authors: Adam Nicole , Trumm Michael , Smith Val C. , MacGillivray Ross T. A. , Panak Petra J.
Published: October 2018

Structure determination of Cm(iii)-transferrin by a combined spectroscopic and theoretical approach gives insight into the biochemical behaviour of incorporated actinides.
Preparation of CdS and Bi2S3 quantum dots co-decorated perovskite-type KNbO3 ternary heterostructure with improved visible light photocatalytic activity and stability for phenol degradation
Authors: Bajorowicz Beata , Kowalska Ewa , Nadolna Joanna , Wei Zhishun , Endo Maya , Ohtani Bunsho , Zaleska-Medynska Adriana
Published: October 2018

A combination of the hydrothermal route with a linker assisted attachment method was used to obtain efficient CdS/Bi2S3 quantum dot-decorated perovskite type KNbO3.
Development of a H3PW12O40/CeO2catalyst for bulk ring-opening polymerization of a cyclic carbonate
Authors: Honda Masayoshi , Abe Hideki
Published: October 2018

Various biomass-derived poly(aliphatic carbonate)s were synthesized by bulk ring-opening polymerization over a heterogeneous H3PW12O40/CeO2catalyst, and thermal properties were investigated.
A triplet biradical with double bidentate sites based ontert-butyl pyridyl nitroxide as a candidate for strong ferromagnetic couplers
Authors: Okazawa Atsushi , Terakado Yutaro , Ishida Takayuki , Kojima Norimichi
Published: October 2018

A new triplet biradical having two chelatable nitroxide sites and a strong intramolecular ferromagnetic coupling through a “meta–para” bipyridyl linker.
In situ impedance matching in Nb/Nb2O5/PtIr memristive nanojunctions for ultra-fast neuromorphic operation
Authors: Molnár Dániel , Török Tímea Nóra , Sánta Botond , Gubicza Agnes , Magyarkuti András , Hauert Roland , Kiss Gábor , Halbritter András , Csontos Miklós
Published: October 2018

We demonstrate Nb2O5 memristive devices with tuneable low-bias resistances and optimized high-bias impedance for high speed neuromorphic operation.
Heterogeneous gap-mode nanostructure for surface-enhanced Raman spectroscopic evaluation of charge transfer between noble metal nanoparticles and formaldehyde vapor
Authors: Shin Dongha
Published: October 2018

The NC stretching bands in heterogeneous gap-mode nanostructures present the change of surface potential of noble metal nanoparticles interacting with organic vapor.
A MOF-derived coral-like NiSe@NC nanohybrid: an efficient electrocatalyst for the hydrogen evolution reaction at all pH values
Authors: Huang Zhaodi , Liu Jianhua , Xiao Zhenyu , Fu Hui , Fan Weidong , Xu Ben , Dong Bin , Liu Di , Dai Fangna , Sun Daofeng
Published: October 2018

A coral-like NiSe@NC nanohybrid derived from Ni-MOFs has been synthesized. The performance of the complex in the hydrogen evolution reaction at all pH values was studied.
Biomimetic self-slippery and transferable transparent lubricant-infused functional surfaces
Authors: Wang Zelinlan , Guo Zhiguang
Published: October 2018

A facile strategy has been proposed for constructing silica SLIPSs. Three common lubricants (perfluoropolyethers, liquid paraffin and ethyl oleate) were employed in this work. After infusion of the lubricants, the transformation from superhydrophobicity to self-slippage properties can be achieved.
Regioselective synthesis of isoxazole and 1,2,4-oxadiazole-derived phosphonates via [3 + 2] cycloaddition
Authors: Chalyk Bohdan A. , Sosedko Alona S. , Volochnyuk Dmitriy M. , Tolmachev Andrey A. , Gavrilenko Konstantin S. , Liashuk Oleksandr S. , Grygorenko Oleksandr O.
Published: October 2018

The regioselective synthesis of 3,4- and 3,5-disubstituted izoxazole- and 1,2,4-oxadiazole-derived phosphonates is described, including analogues of phosphohistidine.
Synthesis of highly rigid phosphine–oxazoline ligands for palladium-catalyzed asymmetric allylic alkylation
Authors: Qiu Zhongxuan , Sun Rui , Teng Dawei
Published: October 2018

Rigid phosphine–oxazoline ligands with a spirocarbon stereogenic center were developed, which exhibited excellent catalytic performance for Pd-catalyzed allylic alkylation reactions.
Synthesis of the core structure of phalarine
Authors: Douki Kazuya , Shimokawa Jun , Kitamura Masato
Published: October 2018

Two new palladium-catalyzed reactions enabled the synthesis of the core structure of phalarine.
A self-calibrating bimetallic lanthanide metal–organic luminescent sensor integrated with logic gate operation for detecting N-methylformamide
Authors: Qin Si-Jia , Qu Xiang-Long , Yan Bing
Published: October 2018

A luminescent [Eu0.1Tb1.9(FDA)3(DMF)2]·2DMF sensor has been constructed integrated with a logic gate capable of detecting NMF by intelligent discrimination.
Efficient and divergent synthesis of polyfunctionalized 2-pyridones from β-keto amides
Authors: Gao Baochang , Sun Yufeng , Wang Jun , Yuan Zhigang , Zu Liwu , Zhang Xu , Liu Wenbin
Published: October 2018

Divergent synthesis of 2-pyridones.
Three-dimensional imaging and analysis of the internal structure of SAPO-34 zeolite crystals
Authors: Bai Xue , Chen Bo , Yang Fei , Liu Xianping , Silva-Nunes Daniel , Robinson Ian
Published: October 2018

This work studies the inter-structure of a SAPO-34 particle by Bragg coherent X-ray diffraction imaging and serial-block-face scanning electron microscopy.
Degradation of dichloroacetonitrile by a UV/peroxymonosulfate process: modeling and optimization based on response surface methodology (RSM)
Authors: Zhang Xing , Yao Jilun , Peng Wei , Xu Wensi , Li Zhongguo , Zhou Chong , Fang Zhendong
Published: October 2018

Response surface methodology (RSM) was utilized to model and optimize the dichloroacetonitrile (DCAN) degradation process by UV/PMS.
Palladium nanoparticles loaded on nitrogen and boron dual-doped single-wall carbon nanohorns with high electrocatalytic activity in the oxygen reduction reaction
Authors: Tan Xueyou , Zhang Jinxuan , Wu Xiaohui , Wang Yuanyuan , Li Meixian , Shi Zujin
Published: October 2018

Palladium nanoparticles with a diameter of 2–4 nm loaded on nitrogen and boron dual-doped single-wall carbon nanohorns (Pd-NBCNHs) are prepared via one-step method and their electrocatalytic activities are studied for the oxygen reduction reaction.
Electricity generation of a laminar-flow microbial fuel cell without any additional power supply
Authors: Ye Dingding , Zhang Pengqing , Zhu Xun , Yang Yang , Li Jun , Fu Qian , Chen Rong , Liao Qiang , Zhang Biao
Published: October 2018

A novel laminar-flow microbial fuel cell without any additional power supply is proposed.
Mechanistic investigation into the C(sp3)–H acetoxylation of morpholinones
Authors: Buettner Cornelia S. , Willcox Darren , Chappell Ben. G. N. , Gaunt Matthew J.
Published: October 2018

The study of a selective palladium(ii)-catalyzed C(sp3)–H acetoxylation reaction on a class of cyclic alkyl amines is reported.
The thermoelectrochemistry of the aqueous iron(ii)/iron(iii) redox couple: significance of the anion and pH in thermogalvanic thermal-to-electrical energy conversion
Authors: Buckingham Mark A. , Marken Frank , Aldous Leigh
Published: October 2018

The multi-faceted significance of the anion upon the thermoelectrochemistry of the iron(ii/iii) redox couple has been extensively explored.
Controlling deformations of gel-based composites by electromagnetic signals within the GHz frequency range
Authors: Savchak Oksana , Morrison Tyler , Kornev Konstantin G. , Kuksenok Olga
Published: October 2018

Using theoretical and computational modeling, we focus on dynamics of gels filled with uniformly dispersed ferromagnetic nanoparticles subjected to electromagnetic (EM) irradiation within the GHz frequency range.
Molecular simulation of structures and mechanical properties of nanocomposite networks consisting of disk-shaped particles and polymers
Authors: Furuya Tsutomu , Koga Tsuyoshi
Published: October 2018

The structural change and the mechanical properties of nanocomposite networks under the uniaxial elongation are studied by a computer simulation.
Strengthening and drying rate of a drying emulsion layer
Authors: Goavec M. , Rodts S. , Gaudefroy V. , Coquil M. , Keita E. , Goyon J. , Chateau X. , Coussot P.
Published: October 2018

Silicone in water emulsion at different stages of drying (decreasing water concentration) viewed from the side (top) and from above (bottom) in a Petri dish, showing the formation of oil and surfactant layers below and around the free surface.
Highly efficient fog harvesting on superhydrophobic microfibers through droplet oscillation and sweeping
Authors: Zhang Qiuting , Lin Gaojian , Yin Jie
Published: October 2018

Oscillating mobile droplets facilitate high-efficient fog harvesting on superhydrophobic microfibers.
Regulating polymer adsorption on colloid by surface morphology
Authors: Wang Chao , Yan Feng , Meng Xiaohui , Qiao Yan , Qiu Dong
Published: October 2018

“Holes” on particle surface may reduce polymer adsorption.
Large-area perovskite solar cells with CsxFA1−xPbI3−yBry thin films deposited by a vapor–solid reaction method
Authors: Luo Long , Zhang Yulong , Chai Nianyao , Deng Xi , Zhong Jie , Huang Fuzhi , Peng Yong , Ku Zhiliang , Cheng Yi-Bing
Published: October 2018

Large-area, highly uniform CsxFA1−xPbI3−yBry mixed cation perovskite films were prepared by a facile vapor–solid reaction method.
Cation exchange reaction derived amorphous bimetal hydroxides as advanced battery materials for hybrid supercapacitors
Authors: Huang Chenghao , Song Xinxin , Qin Yanliang , Xu Binghui , Chen Hai Chao
Published: October 2018

A cation exchange reaction is developed to prepare amorphous bimetal hydroxides for high-performance hybrid supercapacitor applications for the first time.
Exceptional TcO4− sorption capacity and highly efficient ReO4− luminescence sensing by Zr4+ MOFs
Authors: Rapti Sofia , Diamantis Stavros A. , Dafnomili Argyro , Pournara Anastasia , Skliri Euaggelia , Armatas Gerasimos S. , Tsipis Athanassios C. , Spanopoulos Ioannis , Malliakas Christos D. , Kanatzidis Mercouri G. , Plakatouras John C. , Noli Fotini , Lazarides Theodore , Manos Manolis J.
Published: October 2018

A Zr4+ MOF shows an exceptional capability to capture TcO4− and selective luminescence sensing for ReO4−, demonstrated for the first time for MOF materials.
Excellent degradation performance of 3D hierarchical nanoporous structures of copper towards organic pollutants
Authors: Yang Chong , Zhang Cheng , Liu Lin
Published: October 2018

3D printing and chemical dealloying provide a good promising approach to fabricate highly efficient fenton-like catalysts.
Mussel-inspired dopamine oligomer intercalated tough and resilient gelatin methacryloyl (GelMA) hydrogels for cartilage regeneration
Authors: Gan Donglin , Xu Tong , Xing Wensi , Wang Menghao , Fang Ju , Wang Kefeng , Ge Xiang , Chan Chun Wai , Ren Fuzeng , Tan Hui , Lu Xiong
Published: October 2018

Gelatin methacryloyl (GelMA) hydrogels are widely used for tissue regeneration.
Porous nanofibrous scaffold incorporated with S1P loaded mesoporous silica nanoparticles and BMP-2 encapsulated PLGA microspheres for enhancing angiogenesis and osteogenesis
Authors: Zhang Qianqian , Qin Ming , Zhou Xiaojun , Nie Wei , Wang Weizhong , Li Lei , He Chuanglong
Published: October 2018

Dual release of S1P/BMP-2 from porous nanofibrous scaffold promotes angiogenesis and ectopic bone formation.
Novel Al2Mo3O12-based temperature-stable microwave dielectric ceramics for LTCC applications
Authors: Ren Junqing , Bi Ke , Fu Xiuli , Peng Zhijian
Published: October 2018

Novel Al2Mo3O12-based temperature-stable microwave dielectric ceramics for LTCC applications were designed and prepared.
1.2 μm persistent luminescence of Ho3+ in LaAlO3 and LaGaO3 perovskites
Authors: Xu Jian , Murata Daisuke , So Byoungjin , Asami Kazuki , Ueda Jumpei , Heo Jong , Tanabe Setsuhisa
Published: October 2018

Combination between electron traps and host phonon energy for Ho3+ persistent luminescence in perovskites.
523676 (2013 UL10): the first active red centaur
Authors: Mazzotta Epifani E. , Dotto E. , Ieva S. , Perna D. , Palumbo P. , Micheli M. , Perozzi E.
Published: October 2018

Aims. We present observations of 523676 (2013 UL10), a centaur orbiting between Jupiter and Uranus that is dynamically similar to the few tens of active centaurs that are currently known.

Methods. We analysed visible BVR images of the centaur obtained at the Telescopio Nazionale Galileo (La Palma, Canary Islands, Spain) to investigate the weak comet-like activity and to derive information on the nucleus surface colours and size.

Results. Centaur 523676 (2013 UL10) is the only centaur known so far that has both comet-like activity and red surface colours: its nucleus has a colour index [B – R] = 1.88 ± 0.11. The nucleus R magnitude (R = 20.93 ± 0.09) allowed us to derive an upper limit for its nucleus size of D ≤ 10 km. We estimated its dust production rate to be Qd ~ 10 kg s−1 at 6.2 au (just after its perihelion passage), resulting in a timescale for the surface blanketing process τB of approximately tens of years, which is very short with respect to typical dynamical lifetime inside the group. Future monitoring of 523676 (2013 UL10) is needed to further constrain the blanketing model for active centaurs and its timescale.
High-contrast study of the candidate planets and protoplanetary disk around HD 100546
Authors: Sissa E. , Gratton R. , Garufi A. , Rigliaco E. , Zurlo A. , Mesa D. , Langlois M. , de Boer J. , Desidera S. , Ginski C. , Lagrange A.-M. , Maire A.-L. , Vigan A. , Dima M. , Antichi J. , Baruffolo A. , Bazzon A. , Benisty M. , Beuzit J.-L. , Biller B. , Boccaletti A. , Bonavita M. , Bonnefoy M. , Brandner W. , Bruno P. , Buenzli E. , Cascone E. , Chauvin G. , Cheetham A. , Claudi R. U. , Cudel M. , De Caprio V. , Dominik C. , Fantinel D. , Farisato G. , Feldt M. , Fontanive C. , Galicher R. , Giro E. , Hagelberg J. , Incorvaia S. , Janson M. , Kasper M. , Keppler M. , Kopytova T. , Lagadec E. , Lannier J. , Lazzoni C. , LeCoroller H. , Lessio L. , Ligi R. , Marzari F. , Menard F. , Meyer M. R. , Mouillet D. , Peretti S. , Perrot C. , Potiron P. J. , Rouan D. , Salasnich B. , Salter G. , Samland M. , Schmidt T. , Scuderi S. , Wildi F.
Published: October 2018

The nearby Herbig Be star HD 100546 is known to be a laboratory for the study of protoplanets and their relation with the circumstellar disk, which is carved by at least two gaps. We observed the HD 100546 environment with high-contrast imaging exploiting several different observing modes of SPHERE, including data sets with and without coronagraphs, dual band imaging, integral field spectroscopy and polarimetry. The picture emerging from these different data sets is complex. Flux-conservative algorithm images clearly show the disk up to 200 au. More aggressive algorithms reveal several rings and warped arms that are seen overlapping the main disk. Some of these structures are found to lie at considerable height over the disk mid-plane at about 30 au. Our images demonstrate that the brightest wings close to the star in the near side of the disk are a unique structure, corresponding to the outer edge of the intermediate disk at ~ 40 au. Modeling of the scattered light from the disk with a geometrical algorithm reveals that a moderately thin structure (H∕r = 0.18 at 40 au) can well reproduce the light distribution in the flux-conservative images. We suggest that the gap between 44 and 113 au spans between the 1:2 and 3:2 resonance orbits of a massive body located at ~ 70 au, which mightcoincide with the candidate planet HD 100546b detected with previous thermal infrared (IR) observations. In this picture, the two wings can be the near side of a ring formed by disk material brought out of the disk at the 1:2 resonance with the same massive object. While we find no clear evidence confirming detection of the planet candidate HD 100546c in our data, we find a diffuse emission close to the expected position of HD 100546b. This source can be described as an extremely reddened substellar object surrounded by a dust cloud or its circumplanetary disk. Its astrometry is broadly consistent with a circular orbital motion on the disk plane, a result that could be confirmed with new observations. Further observations at various wavelengths are required to fully understand the complex phenomenology of HD 100546.
The 3PAs: An Update on the Association of Pheochromocytomas, Paragangliomas, and Pituitary Tumors
Authors: Xekouki Paraskevi , Brennand Ana , Whitelaw Ben , Pacak Karel , Stratakis Constantine A.
Published: October 2018

Pituitary adenomas (PA) and pheochromocytomas/paragangliomas (PHEO/PGL) are rare tumors. Although they may co-exist by coincidence, there is mounting evidence that genes predisposing in PHEO/PGL development, may play a role in pituitary tumorigenesis. In 2012, we described a GH-secreting PA caused by an SDHD mutation in a patient with familial PGLs and found loss of heterozygosity at the SDHD locus in the pituitary tumor, along with increased hypoxia-inducible factor 1α (HIF-1α) levels. Additional patients with PAs and SDHx defects have since been reported. Overall, prevalence of SDHx mutations in PA is very rare (0.3–1.8% in unselected cases) but we and others have identified several cases of PAs with PHEOs/PGLs, like our original report, a condition which we termed the 3 P association (3PAs). Interestingly, when 3PAs is found in the sporadic setting, no SDHx defects were identified, whereas in familial PGLs, SDHx mutations were identified in 62.5–75% of the reported cases. Hence, pituitary surveillance is recommended among patients with SDHx defects. It is possible that the SDHx germline mutation-negative 3PAs cases may be due to another gene, epigenetic changes, mutations in modifier genes, mosaicism, somatic mutations, pituitary hyperplasia due to ectopic hypothalamic hormone secretion or a coincidence. PA in 3PAs are mainly macroadenomas, more aggressive, more resistant to somatostatin analogues, and often require surgery. Using the Sdhb

+/−
mouse model, we showed that hyperplasia may be the first abnormality in tumorigenesis as initial response to pseudohypoxia. We also propose surveillance and follow-up approach of patients presenting with this association.
Noninvasive Liver Fibrosis Tests in Patients with Nonalcoholic Fatty Liver Disease: An External Validation Cohort
Authors: Polyzos Stergios , Slavakis Aristidis , Koumerkeridis Georgios , Katsinelos Panagiotis , Kountouras Jannis
Published: October 2018

The main aim of this study was the comparative evaluation of nonalcoholic fatty liver disease (NAFLD) fibrosis score (NFS), fibrosis 4 index (FIB-4), AST-to-Platelet Ratio Index (APRI), and enhanced liver fibrosis (ELF) test in distinguishing none/early (F0/F1) from significant/advanced (F2/F3) fibrosis in NAFLD patients, thereby providing an external validation cohort. Thirty-one patients with biopsy-proven NAFLD and 10 matched controls without NAFLD were prospectively enrolled. Serum hyaluronic acid (HA), aminoterminal propeptide of type III procollagen (PIIINP), tissue inhibitor of metallo-proteinases (TIMP)-1, and biochemical tests were measured. NFS, FIB-4, APRI, and ELF were calculated. ELF, FIB-4, and APRI, but not NFS, were higher in F2/F3 than F0/F1 group. Specifically, ELF [area under the ROC curve (AUROC): 0.86±0.10; p=0.004) and APRI (AUROC: 0.86±0.07; p=0.005], but not NFS (AUROC: 0.68±0.12; p=0.16), and FIB-4 (AUROC: 0.71±0.11; p=0.10), could similarly discriminate F0/F1 from F2/F3 stage. The sensitivity, specificity, positive predicted value (PPV), and negative predicted value (NPV) were: a) for cut-off of APRI=0.5, 85.7%, 70.8%, 46.2%, and 94.4%, respectively, and b) for cut-off of ELF=9.0, 85.7%, 83.3%, 60.0%, and 95.2%, respectively. When ln(PIIINP) or TIMP-1 were combined with APRI, the combined AUROCs could distinguish F2/F3 from F0/F1, but without significantly higher accuracy compared with APRI alone. APRI could also distinguish patients with simple steatosis from nonalcoholic steatohepatitis, and those with from those without lobular inflammation and ballooning, findings warranting further research. In conclusions: The application of ELF test and APRI can distinguish F0/F1 from F2/F3 fibrosis stages in NAFLD patients.
A γ-Fluoro β-Acetoxypropyl Sulfonium Salt as an Equivalent of a (Fluoromethyl)vinyl Sulfonium Salt: Reagent for the Facile Synthesis of Monofluoromethylated Cyclopropanes or Aziridines
Authors: Hanamoto Takeshi , Fujiwara Yuuri , Muta Ryuhei , Sato Keiichi , Haramura Hiroaki , Yamada Yasunori
Published: October 2018

A β-monofluoromethylated vinyl sulfonium salt, prepared in situ from a precursor γ-fluoro β-acetoxypropyl sulfonium salt under mild basic conditions, reacted with a lvariety of active methylene compounds or a primary sulfone amide under basic conditions to provide the corresponding monofluoromethylated three-membered rings in good-to-excellent yields. This new sulfonium reagent should permit easy access to a variety of important monofluoromethylated organic compounds.
New Era in Denture Base Resins: A Review
Authors: Nandal Shikha , Ghalaut Pankaj , Shekhawat Himanshu , Gulati Manmeet
Published: October 2018

In past, the materials used for denture bases were vulcanite, celluloid & phenol formaldehyde. Acrylic resins were introduced to dentistry in 1930's. There are certain limitations of acrylics like residual monomer allergy, poor mechanical strength, low fatigue strength, brittle on impact, poor conductors of heat, low hardness, high coefficient of thermal expansion, thermal shrinkage, poor color stability of self-cured resins, porosity, crazing, warpage, poor adhesion to metal and porcelain and requirement of mechanical retention. But still they are the most widely used denture base materials till date. But recently there has been much advancement in the field of denture base resins to overcome their drawbacks and to obtain an ideal denture base material. This article reviews the various advancements in the field of denture base resins.
How to Manage Xerostomia in Prosthodontics???
Authors: Singh Opinder , Mittal Neeraj , Saini Rishi ,   Rubina,   Nikita
Published: October 2018

Saliva is known as the mirror of the body. It is not only essential for retention of removable prosthesis but also protects the oral mucosa from injury by its lubricating effect. Xerostomia or hyposalivation is a commonly encountered condition especially among the elderly that needs to be treated to improve quality of life in denture wearers. This article reviews the various etiologic factors and treatment modalities in patients with xerostomia.
Mineral Trioxide Aggregate in the Treatment of External Invasive Resorption: A Case Report
Authors: Ahir Bhavesh , Parekh Vaishali , Vats Anjali , Vats Ankur
Published: October 2018

External invasive root resorption may occur as a consequence of trauma, orthodontic treatment, intracoronal bleaching and surgical procedures and may lead to the progressive and destructive loss of tooth structure. Depending on the extent of the resorptive process, different treatment regimens have been proposed. A 20-year-old female patient presented with tooth showing signs and symptoms of pain in 21 with extensive invasive resorption in middle third of root canal. After root canal treatment, The resorption area was chemomechanically debrided using ultrasonic tips and irrigant solution. MTA was used to fill the resorptive defect and the coronal access was temporarily sealed. Radiographs at 3 and 12 months showed adequate repair of the resorption and endodontic success. Clinically, the tooth was asymptomatic and found to be functioning well.
Hemisection for the Treatment of Advanced Endodontic Periodontal Lesion
Authors: Gupta Ashu , Thakur Saroj , Thakur Rambhika
Published: October 2018

The removal of a root and the overlaying anatomic crown is referred to as a hemisection. A case with a complain of pain and bone loss till the apex of distal root of 36 presented in the department of Endodontics, Government dental college, Shimla. The patient had increased desire to maintain the natural dentition. The decision was taken to hemi-sect the distal root, as mesial bone and furcation bone was relatively unaffected. After phase I therapy, periodontal flap was reflected, area debrided and distal root was resected. This article describes a procedure of hemisection in mandibular molar and its subsequent restoration. The key to long term success appear to be thorough diagnosis, selection of patients with good oral hygiene and careful surgical and restorative management.
Esthetic Rehabilitation of Coronal Fractures of Maxillary Anterior Teeth after Pulpotomy: Report of Cases.
Authors: Gupta Alpa , Saini Hans , Duhan Jigyasa , Bala Shashi
Published: October 2018

The present case report describes management of two cases with complicated coronal fracture where fractured fragments were reattached, before reattachment of fractured fragments pulpotomy was performed in both cases using different pulpotomy agents, calcium hydroxide in patient with immature apex and mineral trioxide aggregate (MTA) in patient where root development was complete. Both the patients were evaluated for sign and symptoms for a period of 18 months with successful outcome.
Case Series of Intracanal Rehabilitation with Light Transmitting Posts
Authors: Vats Anjali , Vats Ankur , Kothari Paras
Published: October 2018

Intra-radicular rehabilitation is a procedure in which the root canals with very little remaining dentin thickness are strengthened by the use of such material that bonds and reinforces the root structure. In this case report, intra radicular rehabilitation with the use of seventh generation bonding agent and flowable composite is described and discussed as a treatment approach for the restoration of a thin fragile root. The procedure provides for an extended clinical application of the all-in-one bonding agent resulting in conservative, reliable treatment approach for the treatment of compromised root canals due to variety of reasons
Alloderm for Root Coverage: A Case Report
Authors: Goyal Sachin , Gupta Garima , Nayyar Nandini , Garg Avnika
Published: October 2018

The main indication for root coverage procedures is esthetic or cosmetic demand by the patient. Root coverage procedures mainly include use of pedicle soft tissue grafts or free autogenous grafts. Recently acellular dermal matrix allograft has been introduced as a substitute for donor tissue in gingival augmentation procedures.
Nonsyndromic Oligodontia: A Rare Case Report with Review of Literature
Authors: Bajaj Puneet , Sabharwal Robin , Joshi Sonia
Published: October 2018

Dental agenesis is the most common developmental anomaly in humans and is frequently associated with several other oral abnormalities. In the literature, some terms are used to describe missing teeth like Oligodontia, Anodontia and Hypodontia. Oligodontia is defined as the developmental absence of six teeth or more, excluding third molars. It can be isolated or as a part of a syndrome such as in ectodermal dysplasia. The present case describes agenesis of permanent teeth which are non-familial and with no apparent systemic abnormalities
Oral Health Related Quality Of Life: Perspectives
Authors: Sood Poonam , Ahuja Gourav , Makkar Diljot , Gaba Rohini , Sidana Jasmohan
Published: October 2018

Good oral health is essential for the overall wellbeing of an individual. Oral diseases like dental caries, periodontal diseases and oral cancer are highly prevalent and can lead to pain, discomfort, anxiety, poor facial appearance, low self esteem and impaired function. With patient centric measures gaining importance, it is essential to incorporate patient centric measures while restoring the oral health. OHRQoL aims to add this wider view to the clinical assessment of an individual's oral health. It challenges biomedical model of health and provides complete view of the health and disease status of an individual. It is an individual's assessment of how functional, psychological, social and other factors affect personal wellbeing. Various generic and oral health specific quality of life instruments have been developed to assess oral health related quality of life. It has implications in routine clinical practice, research, patient education, surveys and policy formulations. The overall result is a satisfied individual, clinician, researcher and community.
Sealing Ability of Novel Hydrophilic Single-Cone Obturation Systems in an Oval Canal: an In-Vitro Glucose Leakage Study
Authors: Hegde Vibha , Arora Shashank
Published: October 2018

Objective: To compare the sealing ability of three single-cone obturation systems using a glucose leakage model. Materials and Methods: A total of 90 freshly extracted human mandibular incisors with oval canals were selected and their crowns were cut. The root canal of each sample was instrumented using a rotary crown down technique and then divided into four experimental (n = 20 each) and two control groups (n = 5 each). Samples in the experimental groups were filled as follows: Group 1, cold lateral condensation using Gutta-percha/AH Plus; Group 2, single-cone C-Points/Smart-Paste Bio Sealer; Group 3, single cone Bio-Ceramic Impregnated Gutta-Percha/Endo-Sequence Bio-Ceramic Sealer; Group 4, single-cone Resilon/RealSeal SE. After 7 days, the sealing ability of root canal fillings was tested at different time intervals using glucose leakage model. Glucose leakage values were measured using a spectrophotometer and statistically analyzed. Results: The four experimental groups presented significantly different glucose leakage values at all test periods (P < 0.05). At the end of the observation period, the cumulative glucose leakage values of Groups 2 and 3 were significantly lower than those of Groups 1 and 4 (P < 0.05). Conclusion: C-Points/Smart-Paste Bio and Bio-Ceramic Impregnated Gutta-Percha/Endo-Sequence Bio-Ceramic Sealer combinations provided the superior sealing ability over the lateral condensation technique.
Comparison of Anti-Bacterial and Anti-Inflammatory Properties of Neem, Curcumin and Aloe Vera in Conjunction with Chlorhexidine as an Intracanal Medicament – an In-Vivo Study.
Authors: Khetarpal Samta , Bansal Abhishek , Kukreja Navneet
Published: October 2018

Aim & Objective: The main aim of this study was to evaluate the potential of Neem, Curcumin and Aloe vera as an effective intracanal medicament in root canal therapy of infected teeth and to determine the antimicrobial and anti-inflammatory properties of these three herbal substances used in the study. Material and Method: In this study, thirty three patients(33) within the age group of 25-40 years with two single rooted anterior teeth, presenting with periapical radiolucency requiring endodontic therapy were selected. These 33 patients were divided into two groups, in which one was the test and another was control in one single patient. The control samples were taken from all the 33 patients i.e (33 samples) in which chlorhexidine is used as intracanal medicament, whereas the test groups were divided into another three respective groups with 11 samples in each group on the basis of three herbal intracanal medicaments used in this study. The antimicrobial and anti-inflammatory property was assessed in our study using the microbial colony count method and the Visual analogue pain scale method respectively. Results: Test Group A(Neem) showed the highest antibacterial activity with maximum reduction in microbial colony count scores. and the test Group B(Curcumin) showed the highest anti-inflammatory activity with maximum reduction in the VAS pain score. On comparing test groups with control group and antimicrobial property was analyzed. The results were statistically non-significant when Group A(Neem) was compared with Control group(Chlorhexidine) and statistically significant when Group B(Curcumin) and Group C(Aloe vera) was compared with Chlorhexidine.
Comparative Evaluation of Salivary Interleukin-8 Levels in Diabetics, Hypertensives and Smokers with Chronic Periodontitis
Authors: Jain Sanjeev , Kaur Harjit , Aggarwal Nisha , Gupta Milli , Saxena Divya , Pandav Gaurav
Published: October 2018

Background: Cytokines are pivotal to the pathogenesis of periodontal disease and may be used as markers in diagnosis. Systemic diseases and smoking are considered risk factors that have been associated with periodontal disease progression. Cytokine production may also be influenced by smoking and systemic diseases leading to an imbalance that disturbs the host–parasite relationship. Aim: The aim of the present study was to determine and compare the levels of salivary IL-8 in diabetics, smokers and hypertensive patients with chronic periodontitis. Materials and method: A total of 80 patients with chronic periodontitis were included in the study. They were divided into four groups: 20 controls, 20 diabetics, 20 hypertensives and 20 smokers. Unstimulated saliva samples were collected at first visit and IL-8 levels were measured by enzyme linked immunosorbent assay (ELISA). Results: It was found that as compared to control group, diabetic group presented with higher levels of IL-8 whereas hypertensive and smoker groups presented with lower levels of IL-8. After statistical analysis it was found that this alteration was significant in smokers group only. Conclusion It can be concluded from the study that the levels of inflammatory biomarkers in chronic periodontitis patients are altered with systemic factors.
Overdenture Utilizing Access Post System - A Case Report
Authors: Aggarwal Sumit , Jain Shalu , Raghav Pradeep
Published: October 2018

Overdenture treatment precludes the inevitability of “floating plastic” in edentulous mouths. It is an effective and versatile way of restoring teeth and improving facial contours. This case report presents an insight on utilizing a new innovative ‘Access post overdenture’ system which provides more advantages than any other passive overdenture post. It’s patented thick walled hollow tube design, stabilizing flange and undercuts of the shank offer strength, retention and stability with the added insurance policy of retreatability. The access post overdenture fabricated was well retentive and esthetic serving as a conservative approach to root preservation.
Erythema Multiforme- Case Report with Review
Authors: Gupta Neha , Bansal Amol , Bansal Aarti
Published: October 2018

Erythema Multiforme is a rare, acute, inflammatory mucocutaneous condition caused by a hypersensitivity reaction with the appearance of cytotoxic T lymphocytes in the epithelium that induce apoptosis in keratinocytes, which leads to satellite cell necrosis. Reactions to drugs are quite common and are generally mild, hence not reported. However, occasionally life threatening reactions including Erythema multiforme major (Steven Johnson’s syndrome) and Toxic Epidermal Necrolysis may occur. A wide spectrum of drugs can sometimes give rise to Erythema Multiforme. We report a case of Erythema Multiforme following administration of Non Steroidal Anti-Inflammatory Drugs.
Leiomiosarcoma intratesticular primario diagnosticado por biopsia hepática percutánea ecodirigida
Authors: Castellanos González M. , Delgado Martínez C. , Gómez Rubio M. , Butrón Vila M. , Arance Gil J. , Cuenca Morón B.
Published: October 2018

Se presenta el caso clínico de un varón de 80 años diagnosticado de leiomiosarcoma testicular primario, a raíz de alteraciones del perfil hepático en analítica sanguínea y lesiones ocupantes de espacio (LOE) hepatoesplénicas en ecografía abdominal. En primer lugar, se realizó punción de lesión hepática y posteriormente orquiectomía radical, revelando concordancia histológica, compatible con leiomiosarcoma intratesticular. Presentamos el caso clínico debido a la rareza de ese tipo de tumores, sobre todo en estadio III, y su peculiar diagnóstico, tras la detección de alteración hepática tanto analítica como ecográfica.
Estimating correlation dimension of high-dimensional signals - quick algorithm
Authors: Michalak Krzysztof Piotr
Published: October 2018

The paper describes the improvements and corrections to the method of estimation of correlation dimension of d for high-dimensional signals (HDS). The following problems are described: (a) presentation of the quick version of the algorithm that reduces computation time, (b) improvement of the precision of the elementary Takens-Ellner formula estimating d, (c) the problem of strongly non-gaussian signals and its possible normalisation. Appendix discusses the use of author’s Matlab function estimating d which is available for public use.
Bending deformation behavior of Zr65Cu17.5Ni10Al7.5 bulk metallic glass with different solidification cooling rate
Authors: Hu Y. , Yan H. H. , Yan Z. J. , Wang X. G.
Published: October 2018

In order to further clarify the relationship between the free volume and bending plasticity, the bending properties of Zr65Cu17.5Ni10Al7.5 bulk metallic glass (BMG) samples with different thicknesses corresponding to different solidification cooling rates were investigated. The results show that the bending plasticity of Zr65Cu17.5Ni10Al7.5 BMG decreases with the decrease of cooling rate, which is consistent with the evolution of shear bands density revealed by the investigation of microstructure. These phenomena are mainly attributed to the decrease of free volume content with the decrease of cooling rates in spite of the increase of nanocrystallization fraction, which further confirm that free volume plays a crucial role in the deformation process of the BMGs.
Modal analysis for density and anisotropic elasticity identification of adsorbates on microcantilevers
Authors: Belardinelli P. , Hauzer L. M. F. R. , Šiškins M. , Ghatkesar M. K. , Alijani F.
Published: October 2018

Physical characteristics such as mass and stiffness of biological objects are emerging as new markers for severe diseases. Micromechanical resonators can be used to quantify multiple of these characteristics simultaneously. In this paper, we propose a methodology that utilizes higher flexural modes of vibration to perform simultaneous characterization of the density and elastic modulus of adsorbates. To demonstrate this concept, a polymeric block with a known dimension and anisotropy is written directly on the cantilever surface using a two-photon polymerization technique and characterised by modal analysis. Our method captures the effective bending stress exerted by non-isotropic materials which is masked in the atomic force microscopy indentation technique.
Ferroelectric field control of charge density in oxide films with polarization reversal by electric double layer
Authors: Nishino Ryutaro , Kozuka Yusuke , Kagawa Fumitaka , Uchida Masaki , Kawasaki Masashi
Published: October 2018

We demonstrate the ferroelectric field control of transport properties in SrRuO3 and Nb-doped SrTiO3. We utilize ionic liquid for the polarization reversal of PbZr0.2Ti0.8O3. The modulation of the sheet resistance in SrRuO3 is close to the value expected from the polarization-voltage measurement for PbZr0.2Ti0.8O3. In the case of Nb-doped SrTiO3, carrier density for the two polarization states is obtained by the Hall measurement, elucidating modulation of carrier density by 8.0 × 1013 cm−2 at 150 K. These results indicate that polarization reversal via the electric double layer can control the carrier density of materials beneath the ferroelectric layer similarly to conventional switching techniques utilizing a metal top electrode or a metallic tip of a piezoresponse force microscopy.
Resistive switching at the high quality metal/insulator interface in Fe3O4/SiO2/α-FeSi2/Si stacking structure
Authors: Ishibe Takafumi , Kurokawa Tsubasa , Naruse Nobuyasu , Nakamura Yoshiaki
Published: October 2018

Fe3O4-based films composed of ubiquitous elements are promising for resistive switching. In general, the disadvantage of this film is the low Off/On resistance ratio. We achieved the highest resistance ratio in a Fe3O4-based stacking structure including a thin SiO2 layer with a high quality interface. For fabrication of the stacking structure, Fe oxide films were epitaxially grown on the intentionally formed α-FeSi2 layers on Si substrates, where the high quality epitaxial interfaces were formed owing to the α-FeSi2 layer role: blocking of Si atom diffusion from the substrate through the interface. The high quality Fe3O4/α-FeSi2 interfaces were oxidized by the low O2 pressure annealing process to succeed in inserting thin SiO2 layers at the interfaces. The resulting stacking structure of the Fe3O4 film/SiO2 layer/α-FeSi2 layer showed the resistive switching behavior with the resistance ratio of ∼140 which is the highest value of Fe3O4 materials. This high value comes from much higher resistance in the high resistive state because the stacking structure has a thin SiO2 insulator layer with high quality interfaces without defects working as leakage sites. This means overcoming the disadvantage of conventional Fe3O4-based films, low resistance ratio, and demonstrates the possibility of realization for rare-metal-free resistance random access memory.
Organic light-emitting diodes based on electromer-mediated heterojunctions
Authors: Wang Jisheng , Zhang Xinping
Published: October 2018

An organic light-emitting diode with multipeak emission was achieved in a single-layer device based on the blend film of poly(9,9'-dioctylfluorene-co-bis-N,N'-(4-butylphenyl)-bis-N,N'-phenyl-1,4-phenylene-diamine) (PFB) and N,N'-bis(1-ethylpropy)-3,4,9,10-perylenebis (dicarboximide) (EPPTC). A heterointerfacial transition was mediated by the electromer state in PFB to the highest occupied orbit in EPPTC, which produced green emission with a center wavelength of about 2.25 eV (550 nm). In combination with the electromer emission in PFB and the intrinsic electroluminescence (EL) in EPPTC, which are both in the red, and the intrinsic EL in PFB in the blue, the heterointerfacial emission filled the gap in the green and enabled true white-light emission from such an organic light-emitting diode.
Structural stability of Pr-related defects in diamond and electronic structure single photon source: A first-principles study
Authors: Tan Xin , Liu Tiebang , Liu Xuejie , Ren Yuan , Sun Shiyang , Jia Huiling , Liu Zhixin , Chen Luhua , Wei Xueyuan
Published: October 2018

On the basis of the first-principles method, this paper discusses a new type of diamond PrV color center by using Vienna Ab-initio Simulation Package software and optimizes the possible configurations of the PrV defect. Theoretically, a stable structure of the diamond PrV color center is one where Pr is located at the center of the double vacancy. The electronic structure of the diamond color center is calculated by using this stable structure, and its energy band and energy level structures are obtained. A zero-phonon line (ZPL) of 1.0185 eV and emission wavelength of 1217.5 nm are predicted for the PrV color center. Calculation of the effects of co-doping of the diamond PrV color center with N or B atoms reveals improvements in energy band and energy level structures and provides a theoretical basis for the experimental preparation of PrV color centers.
Study decouples excitation and ionization steps in photoelectron circular dichroism
Authors: Kim Meeri
Published: October 2018

Results identify the helicity of the ionization laser pulse as having the greatest influence on resulting photoelectron circular dichroism signals, while the helicity of the excitation pulse has a much weaker effect.
Wanted: Non-Chinese rare-earth elements
Authors: Kramer David
Published: October 2018

With few of its own hard-rock resources, the US may be forced to develop nontraditional sources of the essential metals.
Waking up to temperature inversions
Authors: Sadar Anthony J.
Published: October 2018

When cool air near the ground is trapped beneath a layer of warmer air, pollution can reach unhealthful levels.
Genetics and mapping of the novel leaf-colour mutant gene
Authors: Li X. J. , Ding W. H. , Chen X. D. , Li G. , Jiang X. L. , Dong N. , Xiao Y. J. , Ren C. C. , Gao X. H. , Ru Z. G.
Published: October 2018

Leaf colour plays an important role in plant growth and development. In this study, a stably inherited yellow–green leaf mutation, temporarily designated yglw-1, was initially isolated from progenies of wheat (Triticum aestivum L.) cross Bainong58409/Caifumai. The yellow-leaf phenotype could be observed in the yglw-1 mutant during the seedling stage, and then the yellow leaves gradually progressed from the bottom to the top throughout development. Compared with its sister line Cf5019-21 with a normal leaf-colour phenotype, the main agronomic traits of the yglw-1 mutant including spike length, number of kernels per spike and 1000-kernel weight were significantly decreased. Measurement of chlorophyll contents showed that chlorophylls a and b in the third top leaf at the jointing stage and the penultimate leaf and third top leaf at the heading stage were obviously lower in yglw-1 than in Cf5019-21. Genetic analysis indicated that the yellow–green leaf trait was controlled by a single recessive gene. Bulked segregant analysis found that two published simple sequence repeat (SSR) markers and four expressed sequence tag-sequence tagged site (EST-STS) markers were linked to the yglw-1 gene, and BE494262 was the most closely linked marker to yglw-1, at a genetic distance of 2.3 cM. To increase the density of the genetic map, 135 novel SSR markers at a certain distance near the marker BE494262 were developed according to SSR loci detected in the Chinese Spring reference sequence. Of these, nine SSR markers detected polymorphic fragments between the two parents as well as between the contrasting DNA bulks. Finally, the yglw-1 gene was mapped between SSR markers Xhwm1 and Xhwm43 and showed genetic distances 1.9 cM and 23.9 cM on chromosome 2BS. These findings can facilitate candidate-gene prediction and map-based cloning of the yglw-1 gene.