bluuebunny/crossref_metadata_2025 huggingface dataset:
Room-temperature single photon emitters in cubic boron nitride nanocrystals
Authors: López-Morales Gabriel I. , Almanakly Aziza , Satapathy Sitakanta , Proscia Nicholas V. , Jayakumar Harishankar , Khabashesku Valery N. , Ajayan Pulickel M. , Meriles Carlos A. , Menon Vinod M.
Published: January 2020

Color centers in wide bandgap semiconductors are attracting broad attention for use as platforms for quantum technologies relying on room-temperature single-photon emission (SPE), and for nanoscale metrology applications building on the centers’ response to electric and magnetic fields. Here, we demonstrate room-temperature SPE from defects in cubic boron nitride (cBN) nanocrystals, which we unambiguously assign to the cubic phase using spectrally resolved Raman imaging. These isolated spots show photoluminescence (PL) spectra with zero-phonon lines (ZPLs) within the visible region (496–700 nm) when subject to sub-bandgap laser excitation. Second-order autocorrelation of the emitted photons reveals antibunching with g2(0) ∼ 0.2, and a decay constant of 2.75 ns that is further confirmed through fluorescence lifetime measurements. The results presented herein prove the existence of optically addressable isolated quantum emitters originating from defects in cBN, making this material an interesting platform for opto-electronic devices and quantum applications.
Laser fabrication of graphene-based supercapacitors
Authors: Fu Xiu-Yan , Chen Zhao-Di , Han Dong-Dong , Zhang Yong-Lai , Xia Hong , Sun Hong-Bo
Published: January 2020

Supercapacitors (SCs) have broad applications in wearable electronics (e.g., e-skin, robots). Recently, graphene-based supercapacitors (G-SCs) have attracted extensive attention for their excellent flexibility and electrochemical performance. Laser fabrication of G-SCs exhibits obvious superiority because of the simple procedures and integration compatibility with future electronics. Here, we comprehensively summarize the state-of-the-art advancements in laser-assisted preparation of G-SCs, including working mechanisms, fabrication procedures, and unique characteristics. In the working mechanism section, electric double-layer capacitors and pseudo-capacitors are introduced. The latest advancements in this field are comprehensively summarized, including laser reduction of graphene oxides, laser treatment of graphene prepared from chemical vapor deposition, and laser-induced graphene. In addition, the unique characteristics of laser-enabled G-SCs, such as structured graphene, graphene hybrids, and heteroatom doping graphene-related electrodes, are presented. Subsequently, laser-enabled miniaturized, stretchable, and integrated G-SCs are also discussed. It is anticipated that laser fabrication of G-SCs holds great promise for developing future energy storage devices.
Therapeutic evaluation of homeopathic treatment for canine oral papillomatosis
Authors: Raj P. Albert Arockia , Pavulraj Selvaraj , Kumar M. Asok , Sangeetha S. , Shanmugapriya R. , Sabithabanu S.
Published: January 2020

Aim: A study was conducted to evaluate the ameliorative potential of homeopathic drugs in combination (Sulfur 30C, Thuja 30C, Graphites 30C, and Psorinum 30C) in 16 dogs affected with oral papillomatosis which was not undergone any previous treatment. Materials and Methods: Dogs affected with oral papillomatosis, which have not undergone any initial treatment and fed with a regular diet. Dogs (total=16) were randomly divided into two groups, namely, homeopathic treatment group (n=8) and placebo control group (n=8). Random number table was used for allocation. Homeopathic combination of drugs and placebo drug (distilled water) was administered orally twice daily for 15 days. Clinical evaluation in both groups of dogs was performed by the same investigator throughout the period of study (12 months). Dogs were clinically scored for oral lesions on days 0, 5, 7, 10, 15, 20, 25, 30, 45, 60, 90, 120, and 150 after initiation of treatment. Results: The homeopathic treatment group showed early recovery with a significant reduction in oral lesions reflected by clinical score (p<0.001) in comparison to placebo-treated group. Oral papillomatous lesions regressed in the homeopathic group between 7 and 15 days, whereas regression of papilloma in the placebo group occurred between 90 and 150 days. The homeopathic treated group was observed for 12 months post-treatment period and no recurrence of oral papilloma was observed. Conclusion: The current study proves that the combination of homeopathy drugs aids in fastening the regression of canine oral papilloma and proved to be safe and cost-effective.
A lexikai-szemantikai transzformációkról a magyar nyelvről udmurt nyelvre történő fordításban
Authors: Jefremov Dmitrij A.
Published: January 2020

Számos magyar nyelvű irodalmi műnek született már udmurt fordítása is. A fordító mindig arra törekszik, hogy a mű egészét át tudja adni az olvasónak, beleértve annak művi felépítését is, és ennek érdekében számos változtatást kell eszközölnie lexikai, nyelvi, stb. szinteken. Ez a cikk egy elemzést kíván adni a fordításoknál használatos lexikai átalakításokról (transzkripció, transzliteráció, tükörfordítás) és az olyan lexiko–szemantikai átalakításokról, mint az általánosítás, konkretizáció, moduláció, antonimikus fordítás, körülírás és kulturális áthelyezés.
Synthesis of Capsule Film from Water-Soluble Chitosan by Adding Sodium Lauryl Sulfate
Authors: Ni'mah Yatim Lailun , Devega Wemma , Ulfin Ita , Harmami Harmami
Published: January 2020

Mixtures comprising water-soluble chitosan (WSC), agar and different concentrations of sodium lauryl sulphate (SLS) were used to synthesize capsule films. The concentration of agar was fixed at 0.02 %, whereas the concentration (v/v) of SLS varied (0, 0.02, 0.04, 0.06 and 0.08 %). Shrimp shell waste was subjected to demineralization, deproteination and deacetylation to obtain chitosan. The chitosan thus obtained was depolymerized to produce water-soluble chitosan (WSC). Fourier-Transform infrared (FTIR) baseline method was used for calculating the degree of deacetylation of chitosan. FTIR spectra
of the obtained capsule film exhibited vibrations of its constituent molecules, namely agar, chitosan and SLS. The elasticity of the film matrix increased with SLS concentrations. In swelling tests conducted using water and 0.1 N HCl, the highest swelling values, 123.74 and 235.87 %, respectively were observed in the capsule film containing 0.08 % SLS in the 10th min. The capsule film containing 0.08 % SLS was degraded (broken) in water and 0.1 N HCl in the 10th and 30th min, respectively. The
results indicated that a capsule film containing 0.08% SLS was the most eligible film for commercial use.
Porphyrins with Five-Membered Ring Substituents on meso-Position and their Derivatives
Authors: Santosh G.
Published: January 2020

Tetrapyrrolic porphyrins are the molecules of choice for nature where light absorption and metal based chemistry plays an important role in biological systems. Constant efforts are directed at modifying the porphyrin skeletal structure to result in porphyrins with fine-tuned physical properties. This review focusses on the chemistry of porphyrins with five-membered aromatic rings such as furan, pyrrole and thiophene as substituents at the meso position of porphyrins. Substitution with these five-membered rings at the meso-position of porphyrins brings about significant modulation of HOMO-LUMO gap, which reflects in shifts in the absorption and fluorescence spectra and in their electrochemical properties compared to the conventional porphyrins with six-membered aryl substituents. The synthetic modification of these five-membered rings by introdcution of various functional groups were also discussed.
Properties of Carboxymethylated-Cassava and Sago
Starches Prepared by using Sodium Monochloroacetate
Authors: Ruriani E. , Salim N. , Mangunwidjaja D. , Richana N. , Sunarti T.C.
Published: January 2020

In the present study, carboxymethyl starch (CMC) were produced from different sources of starch and their physico-chemical properties were evaluated. Carboxymethylation was performed using different concentrations of sodium monochloroacetate (1.1, 1.3 and 1.5 mol/mol of anhydrous glucose units) in a three-necked round-bottom flask (250 mL) for approximately 3 h (250 rpm and 40°C) in a two-stage reaction comprising alkalization and etherification. The introduction of carboxymethyl groups was confirmed in the results by the appearance of a new peak in the FTIR spectrum in 1650.10-1649.76 cm-1 region. In addition, degree of substitution (DS) of produced CMS was ranged from 0.53-0.60. An increase in the concentration of sodium monochloroacetate (1.1, 1.3 and 1.5 mol/mol of anhydrous glucose unit) resulted in greater paste clarity, higher solubility and greater swelling than native starch. Furthermore, cassava starch (tapioca) produced a CMS exhibited greater swelling than sago starch, however by contrast, CMS-sago was more soluble and clearer than CMS-cassava.
Study of Green and Chemical Methods for Synthesis of Nano Spinel MgFe2O4 and its Study on Degradation of Rose Bengal Dye
Authors: Shetty Krushitha , Prathibha B.S. , Rangappa Dinesh , Anantharaju K.S. , Nagaswarupa H.P. , Gangaraju Vinay
Published: January 2020

MgFe2O4 nanoferrites were synthesized by sol-gel and solution combustion synthesis (SCS) methods through green and chemical methods. Green and chemical methods for sol-gel were processed with use of lemon extract and citric acid, respectively. A green and chemical method for solution combustion synthesis was followed by using Phyllanthus acidus leaf extract and urea, respectively. The influence of synthesis approach on the behaviour of prepared nanoferrites were studied using powder X-ray
diffraction (PXRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and UV visible spectroscopy, vast variation in particle size, crystallinity, electrochemical and photocatalytic activity of the nanoferrites synthesized by various methods were witnessed. Powder X-ray diffraction (PXRD) result of prepared nanoferrites acquired by green and chemical approaches clarified phase structure as spinel and the crystalline size found to be around 11-24 nm. The spinel surface morphology was witnessed for the synthesized nanoferrites. The tetrahedral and octahedral sites of the prepared nanoferrites were confirmed by FTIR spectra. MgFe2O4 nanoferrites synthesized by green sol-gel approach exposed superior electrochemical activity by possessing very less charge transfer resistance. The results of EIS were correlated with the photocatalytic degradation of Rose Bengal dye. Photocatalytic property of the prepared nanoferrites was examined for photodegradation of Rose Bengal dye under UV-light.
Adsorptive Removal of Pb(II), Cu(II) and Cd(II) Ions onto Rubus ellipticus as Low-Cost Biosorbent
Authors: Kumar Rajesh , Sharma Harish , Vishwakarma M.C. , Joshi S.K. , Bhandari N.S. , Kandpal N.D.
Published: January 2020

In the present study, removal efficiency (%) of Rubus ellipticus leaves (REL) as an adsorbent for the removal of Pb(II), Cu(II) and Cd(II) ions was investigated. Different parameters i.e., pH, contact time, temperature, adsorbent dose and initial metal ion concentration were investigated to obtain the optimum adsorption efficiency. At pH 4, a maximum adsorption was 84.6, 80.2 and 74.5 % for Pb(II), Cu(II) and Cd(II) ions, respectively. The maximum adsorption of all the three metal ions obtained at contact
time (75 min), initial metal ion concentration (10 mg/L), temperature (25 ºC) and adsorbent dose (5.0 g). The equilibrium adsorption of Pb(II), Cu(II) and Cd(II) ions at different temperature was described by Langmuir, Freundlich and Temkin isotherms. The equilibrium data fitted well the Langmuir adsorption isotherm. Thermodynamic parameters like Gibb′s free energy (ΔGº), enthalpy (ΔHº) and entropy (ΔSº) were also calculated. The calculated parameters indicated that adsorption of Pb(II), Cu(II) and Cd(II) ions onto Rubus ellipticus leaves (REL) was spontaneous (ΔGº < 0), endothermic (ΔGº > 0). The feasibility of the process was evident from the positive value of ΔSº.
Synthesis and Characterization of Niobium Oxide Nanoparticles,
Polyindole and Nb2O5/Polyindole Nanocomposite
Authors: Anandhi S. , Keerthika D. , Edward M. Leo , Jaisankar V.
Published: January 2020

In present work, polyindole-Nb2O5 nanocomposite was synthesized and characterized by various analytical methods. Niobium oxide nanoparticles were prepared by sol gel method. Polyindole and Nb2O5 nanocomposites was prepared by chemical polymerization method and the morphology of Nb2O5 nanoparticles, polyindole and the nanocomposite was studied by SEM. The chemical structure of Nb2O5 nanoparticle, polyindole and the nanocomposite was characterized by UV-visible, FTIR and NMR spectroscopic techniques. Elemental composition and chemical character was analyzed by the use of EDAX technique. The X-ray powder diffraction technique was used to determine the degree of
crystallinity and crystallite sizes. Thermal analysis such as TGA and DSC showed that the conducting polymers in the nanocomposites were stable even at high temperatures.
Enhanced Antimicrobial and Cytotoxicity on Cancer Cell using Bio-Originated Selenium Nanoparticles
Authors: Dhivya A. , Yadav Rakhi , Pandian K.
Published: January 2020

Present work describes the bio-originated synthesis of selenium nanoparticles using seed extract of Cassia angustifolia. The biological macromolecules in seed extract react with metal ions to generate selenium nanoparticles. The seed extract acts as reducing, capping and stabilizing agents. The selenium nanoparticles produced by the plant extract are amorphous, nearly spherical in shape and held together by protein coating in a range of about 80-100 nm in size, under ambient conditions. The structural
properties of selenium nanoparticles were characterized by UV-visible spectroscopy, FTIR, XRD, FESEM with EDAX, HRTEM and AFM. Antibacterial and antifungal activity of selenium nanoparticles were tested against four bacterial and two fungal strains using standard agar-well diffusion method. The zone of inhibition was observed in the selenium nanoparticles against different microbes and suggested that the bio-originated selenium nanoparticles act as an effective antibacterial and antifungal
agent, so it has a great latent in the preparation of drugs used against pathogenic diseases. The cytotoxicity of bio-originated selenium nanoparticles was tested under in vitro conditions on Vero cell line and had compared with MDA-MB231 cancer cell line at different concentrations and the results had proved that bio-originated synthesis selenium nanoparticles can inhibit the growth of human breast-cancer cells by concentration-dependent manner.
Design, Synthesis and Biological Evaluation of Novel Benzothiazole
Based [1,2,4]Triazolo[4,3-c]quinazoline Derivatives
Authors: Gadhave Ranjit V. , Kuchekar Bhanudas S.
Published: January 2020

A new series of N-(benzo[d]thiazol-2-yl)-[1,2,4]triazolo[4,3-c]quinazoline-5-carboxamide derivatives were synthesized by condensation of [1,2,4]triazolo[4,3-c]quinazoline-5-carboxylate derivatives with substituted benzothiazoles. The chemical structures of the synthesized compounds were confirmed by FT-IR, MS and 1H NMR spectra. Designed triazoloquinazoline derivatives were docked with oxido-reductase enzyme (PDB Code 4h1j) and DNA gyrase enzyme (PDB Code 3g75). Based on high binding affinity score, the
best compound were selected for synthesis and subjected to in vitro antioxidant and antibacterial activity. Compounds 7a and 7d were found to be most active compounds as antioxidant agent among this series when compared with ascorbic acid. Compounds 7a, 7d and 7f were found to be most active compounds as an antibacterial agents among this series when compared with ciprofloxacin against bacterial strains such
as S. aureus (ATCC 25923), E. coli (ATCC 25922) and P. aeruginosa (ATCC 27853). Study revealed that the most active compounds after structural modifications can be exploited as lead molecules for other pharmacological activities such as anti-inflammatory, anticancer and antidepressant activities.
Preparation of Spherical Gold Nanoparticles Capped by Fragaria ananassa (Strawberry)
Fruit Extract and their Catalytic Activity for Degradation of Industrial Dyes
Authors: Shah Ami Ansul , Xavier Belina , Jayalakshmi D.
Published: January 2020

The prospect of developing new approaches in the assembly of noble metal nanoparticles and its functions has been garnering intense interest among researchers in various fields. The green synthesis method is an evolving trend as it is environment benign and aids in large-scale formation of nanoparticles. The versatile properties of green synthesized gold nanoparticles (AuNPs) like surface plasmon resonance, stability and morphology are examined by UV-visible spectroscopy (UV-Vis), dynamic light scattering (DLS), zeta potential (ZP) and high resolution transmission electron microscopy (HRTEM) studies at pH 7. Fourier transform-infrared (FT-IR) analysis confirms the pivotal role of anthocyanins and polyphenols in Fragaria ananassa (strawberry) fruit extract for the capping of AuNPs. The size of gold nanoparticles is in the range of 10 to 40 nm and they exhibit greater negative value of zeta potential. The catalytically active AuNPs follow the pseudo-first order kinetic model and takes 10 min for rapid degradation and adsorption of methylene blue dye from aqueous solution. These results
confirm that Fragaria ananassa has a remarkable function in the plant-mediated synthesis of AuNPs and thus can emerge as a positive platform to convert water pollutants into harmless molecules.
Interaction of CT-DNA with Ruthenium(II) Metallosurfactant Complexes:
Synthesis, CMC Determination, Antitumour and Antimicrobial Activities
Authors: Devi R. Suganthi , Kumaraguru N.
Published: January 2020

To enhance the application of metalosurfactants in the field of drug delivery, it is essential to acquire the role of surfactants in terms of micellization, hydrophobicity, interaction with nucleic acids, reactive changes with abnormal cells and pathogenic organisms. A new class of two ruthenium(II) metallosurfactant complexes [Ru(DMP)2(CA)Cl](ClO4) (1) and [Ru(DMP)2(CA)2](ClO4)2 (2), where DMP = 2,9-dimethyl[1,10]phenanthroline) and CA = cetyl amine were synthesized and characterized.
The critical micelle concentration (CMC) and the thermodynamic parameters of micellization were determined and the variations suggest the expression of hydrophobic interaction in these complexes. The binding affinity of ruthenium(II) metallosurfactant complexes with CT-DNA has been investigated by spectroscopic and viscosity magnitudes. The outcomes expose that the complexes associate with CT-DNA through intercalation mode. Subsequently the complexes were taken for in vitro anticancer
and antimicrobial inhibition study against human cervical cancer cell lines (HeLa) and pathogenic microorganisms and found that the complexes exhibited remarkable inhibitory action. The cytotoxic nature of the complexes towards, HeLa cells, was adopted by MTT assay and apoptosis were examined by AO/EB (acridine orange/ethidium bromide) and tryphanblue staining methods showing that complexes affected the viability of the cells significantly.
Computational Study of Novel 2,3-Bis[(1-methyl-1H-imidazole-2-yl)sulfanyl]quinoxaline:
Structural Aspects, Spectroscopic Investigation, HOMO-LUMO, MESP, NLO, ADMET
Predictions and Molecular Docking Studies as Potential Biotin Carboxylase and Antibiotics Resistant Aminoglycoside Phosphotransferase APH(2")IVA Enzyme Inhibitor
Authors: Kumar Ashutosh , Pandey Anjali , Mishra Anil
Published: January 2020

In this paper, a complete quantum chemical calculation has been done to describe the relevant structural aspects of novel 2,3-bis[(1-methyl-1H-imidazole-2-yl)sulfanyl]quinoxaline with combination of DFT/B3LYP method 6-311++G(d,p) basis set in gas phase and in solvent phase. The molecular structure was examined by using IR, 1H & 13C NMR and UV-visible techniques and solvent effect on spectroscopic properties are also discussed. The vibrational assignments are analyzed by PED using Gauss View 5.0 and VEDA 4.0 program. The 1H NMR and 13C NMR chemical shifts are calculated using the gauge-independent atomic orbital method (GIAO method) in gas phase and in solvents (water, DMSO and chloroform). The UV spectrum is calculated by using TD-DFT/6-311++G(d,p) method in gas phase and in solvent (water, DMSO and chloroform) using IEF-PCM model. With the help of theoretical calculations chemical activities, electrophilic/nucleophilic nature and sites in the molecule, molecular and chemical properties that cannot be obtained by experimental way are obtained. Accordingly,
molecular electrostatic potential (MESP), hardness (η)/softness (S) parameters, net charges analyses are investigated to gain electrophilic and nucleophilic nature. Also the sites in molecule and Fukui function analysis are discussed. The dipole moment (μ), polarizability (αtot), anisotropic polarizability (Δα) and first-order hyperpolarizability (βtot) of the title compound are reported and results shows that the material is capable to generate non-linear effect (NLO). The in silico study of all th e biological and ADMET properties of title molecule are also discussed and compared with reference drug ciprofloxacin antibiotics. The title molecule and reference drug ciprofloxacin docked with biotin carboxylase enzyme (PDB ID: 2V59) of E. coli and aminoglycoside phosphotransferase APH(2")IVA (PDB ID: 4DFU) of Enterococcus casseliflavus receptor with the help of Molegro molecular viewer 2.5 program and binding affinity (ΔG) were determined by ParDock server.
TOCOPHEROLS OF FRUIT PULP OF FOUR SEABUCKTHORN (HIPPOPHAE RHAMNOIDES L.) SUBSPECIES IN FOREST-STEPPE CONDITIONS OF ALTAI TERRITORY
Authors: Земцова (Zemtsova) Анна (Anna) Яковлевна (Yakovlevna) , Зубарев (Zubarev) Юрий (Yuriy) Анатольевич (Anatol'evich) , Гунин (Gunin) Алексей (Aleksey) Васильевич (Vasil'evich)
Published: January 2020

The aim of the study was to study tocopherols in the fruits of various sea buckthorn ecotypes ssp. mongolica in comparison with other subspecies. The composition of tocopherols in fruit pulp of four subspecies of sea buckthorn – H. rhamnoides ssp. mongolica, ssp. turkestanica, ssp. fluviatilis and ssp. carpatica, growing at Lisavenko Research Institute of Horticulture for Siberia in forest-steppe conditions of Altai territory has been studied. The research has been focused on the most promising subspecies from the point of view of industrial utilization – H. rhamnoides ssp. mongolica, in order to identify possible variation in accumulation of different tocopherols in fruit pulp depending on ecotype, period of collection of fruits as well as conditions of the year.

It was established that the major tocopherol in the pulp of the fruit of sea buckthorn is α-tocopherol. β -, γ-and δ-tocopherols were characterized by low content. Within subspecies H. rhamnoides ssp. mongolica most fractions of tocopherols (except δ-tocopherol) have relatively high coefficient of variation, which exceeds of that for the whole group of evaluated varieties. That result does not allow us to use this criteria as a reliable background for preliminary systematic identification of evaluated varieties.
Evaluation of marginal fit and microleakage of monolithic zirconia crowns cemented by bio-active and glass ionomer cements: In vitro study
Authors: Aboelenen Radwa Hamdy , Mokhtar Ashraf , Zaghloul Hanaa
Published: January 2020

Objective: To evaluate the marginal fit and microleakage of monolithic zirconia crowns cemented with bioactive cement (Ceramir) compared to that cemented with glass ionomer cement and to evaluate the effect of thermocycling on marginal fit. Materials and methods: Twenty sound human molar teeth were prepared to receive a monolithic zirconia crowns. Teeth were divided randomly into two equal groups according to the type of luting cement. Group I: glass ionomer cement and group II: Ceramir cement. After cementation, the vertical marginal gap was assessed by using stereomicroscope before and after thermocycling. Twenty equidistant measurement points were taken for each crown. Leakage assessment was carried out using Fuchsin dye penetration followed by digital photography under a stereomicroscope. Data were analyzed by Mann-Whitney U test to compare between the two luting cements. Wilcoxon signed-rank test was used to evaluate the effect of thermocycling on the marginal fit (P ? 0.05)?Results: Whether before or after thermocycling, the results showed no significant difference between the marginal gap values of the two tested groups. For both groups, there was a significant increase in marginal gap values after thermocycling. Also, there was no significant difference between leakage scores of the two tested groups. Conclusions: Similarity in the physical properties and chemical composition of the two cements result in a non- significant effect on the vertical marginal fit and the extent of microleakage of translucent zirconia crowns.  Thermocycling had a negative impact on the vertical marginal gap of the two tested luting agents.
Micro-shear bond strength of bioactive cement to translucent zirconia after thermocycyling: a comparative in-vitro study
Authors: ElGendy Menna Ahmed , Mosleh Ihab , Zaghloul Hanaa
Published: January 2020

Objective: the purpose of the study was to evaluate the micro-shear bond strength of different cements to translucent zirconia before and after thermocycling aging. Material and methods: Twelve translucent zirconia ceramic discs were used in the study. Specimens were sandblasted using 50 ??m aluminum oxide (Al2O3) particles. The specimens were divided into three groups (n = 4) according to the cement type: Panavia resin cement (control group), resin modified glass ionomer (RMGI), and Activa bioactive cement. Each group was further sub-divided into two equal subgroups (n = 2) according to whether the specimens were subjected to thermocycling or not. Thermocycling was performed in distilled water at 5000 cycles between 5 oC - 55 oC. The micro-shear bond strength test (?SBS) was measured using universal testing machine. Kruskal-Wallis test was used to compare between the three cements. Dunn’s test was used for pair-wise comparisons when Kruskal-Wallis test is significant. Mann-Whitney U test was used to compare between micro-shear bond strength before and after thermocycling P ? 0.05. Results: In non-aged subgroups, there was no significant difference between Panavia and Activa; both showed significantly the highest mean ?SBS values (22.9 MPa, 31.3 MPa respectively). While, RMGI showed the lowest ?SBS values (4.7 MPa).  In thermocycled subgroups, Panavia showed significantly the highest mean ?SBS values (32.2 MPa). There was no significant difference between RMGI and Activa; both showed the lowest significant mean ?SBS values (3.2 MPa and 8.7 MPa respectively). Conclusions: RMGI and Activa couldn’t be considered long-term reliable materials for cementing zirconia. However, Panavia provided the most durable bond to zirconia.KEYWORDSBioactive cement; Micro-shear bond strength; Resin cement; Translucent zirconia.
Preventive and therapeutic effects of relaxin on bisphosphonaterelated osteonecrosis of the jaw: an experimental study in rats
Authors: Develi Tuba , Uckan Sina , Bayram Burak , Deniz Kagan , Erdem Remzi Saban , Ozdemir Hannan Binnaz , Tutuncu Neslihan Bascil , Bacanli Didem
Published: January 2020

Objective: Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a challenging complication of chronic bisphosphonate (BP) use. The hormone relaxin is able to induce the multistep differentiation process of human osteoclastogenesis, exhibits anti-fibrotic and anti-inflammatory actions, and promotes vasodilatation, wound healing, and angiogenesis. The present study aimed to evaluate the effects of relaxin in the prevention and management of BRONJ. Material and Methods: Thirty-six male Sprague Dawley rats were randomly divided into four groups. Rats in group 1 (n = 10) received relaxin and BP simultaneously for 12 weeks. Rats in group 2 (n = 10) received injections of BP for 12 weeks, followed by relaxin for another 12 weeks. Rats in group 3 (n = 10) received only BP injections, and those in group 4 (control, n = 6) received only saline. Necrosis and inflammation in the rats’ mandibles were evaluated as indicators of BRONJ. Results: Necrosis and inflammation were not detected in group 1 (BP + relaxin). In group 3 (BP only), incidence rates of necrosis and inflammation were 90% and 60%, respectively. Conclusions: Our findings suggest that relaxin may be potently effective in preventing BRONJ and have some benefit in the treatment of existing BRONJ.KEYWORDSAnimal model; BRONJ; Relaxin.
Esthetic perception regarding periodontal changes: a crosssectional study
Authors: Sassi Maira Soares , Almeida Aislan Pereira de , Coqueiro Raildo Silva , De Brito Júnior Rui Barbosa , Pithon Matheus Melo
Published: January 2020

Objective: Facial appearance has become an important factor of social interaction. The perception of patients regarding the changes promoted by treatment has become a focus of study today. Thus, the proposal of the present study was to evaluate the esthetic perception of lay people regarding esthetic periodontal changes.  Method: The total sample comprised 180 individuals divided into three different age groups (15-19, 35-44, and 65-74 years). Nine images with digital alterations in the gingival contour were used. One of the images served as an esthetic standard for the research (ideal image). The images were presented to the evaluators using slide show software (Microsoft PowerPoint 2013, Microsoft, California). Was used the Wilcoxon, Kruskal-Wallis and Mann-Whitney test. The level of significance was 5% (? = 0.05). Results: Statistical differences were found between the esthetic perception of different age groups. The sample was composed only of lay people of three different age groups, and it was evident that the younger age group has a more accurate perception regarding changes in the gingival contour.  Conclusion: The changes in the gingival contour perceived as less attractive were the changes between the central incisors. The younger age group had a more accurate esthetic perception in this study. KEYWORDSPeriodontics; Gingival esthetics; Perception; Esthetics.
Low temperature atmospheric pressure plasma: a promising therapy for the future dentistry
Authors: Koga-Ito Cristiane Yumi
Published: January 2020

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Feeding plans with the use of glycerin for broilers
Authors: Santos Edna Teles dos , Dourado Leilane Rocha Barros , Silva Flávio Ferreira da , De Sousa Regina Fialho , Lima Stélio Pinheiro Bezerra de , Siqueira Jefferson Costa de
Published: January 2020

This study aimed to evaluate the effects of feeding plans with or without addition of glycerin, in different ages, on performance, carcass yield, litter moisture and footpad lesions of broiler chickens. 540 male Cobb broilers were utilized, distributed in a completely randomized design with six treatments (treatments consisted of the inclusion or not of glycerin in diets at all periods or only at different stages: 1 to 7, 8 to 21, 22 to 33 and 34 to 42 days), in six replicates of 15 birds each. Diets were provided ad libitum. At 42 days, the average weight, weight gain, feed intake, feed conversion, carcass yield, litter moisture and footpad lesions were evaluated. There was no effect (p> 0.05) of dietary plans on the performance variables. The feeding plans did not influence (p>0,05) the carcass and cuts parameters at 42 days. However, there was significant effect (p <0.05) of the dietary plans on litter moisture and plantar lesions. Effects were observed (p>0,001) for the feeding plans, were the highest and the lowest incidence of lesions were present in the birds that consume diets with and without addition of glycerin, in the period from 1 to 42 days of age, respectively.
Feeding behavior of goats, castrated and uncastrated, supplemented with Vitamin E
Authors: Silva Igor Cassiano Saraiva , Cutrim Junior José Antônio Alves , Da Silva Edneide Marques , Pereira Anderson Lopes , Mesquita Saulo Antônio Araújo , Gomes Ravana Sousa
Published: January 2020

The objective of this study was to evaluate the ethological and feeding behavior of male goats under the influence of climatic conditions, castration and supplementation with Vitamin E. The responses were analyzed by a behavior test factorial design with 2 x 2 (not spayed or neutered animal, the presence or absence of supplementation with Vitamin E), with 6 replicates. The time of feed intake, rumination, other activities, entertainment, salt intake frequency, water, urination and defecation were evaluated. The factors did not have any effect on the animal’s condition, or the vitamin supplementation (P>0.05) on rumination, other activities, defecation frequency and water consumption. Vitamin E intake had no effect on food and entertainment (P>0.05). There was a significant condition of the animal (P<0.05) on the salt intake and urination, for uncastrated animals without Vitamin E. Periods of the day (P<0.05) affected feed intake in all treatments. There was a significant difference (P<0.05) for rumination time. Vitamin E had little influence on ethological behavior, and castration is directly linked to the behavioral parameters of goats.
Performance and carcass traits of heifers Rubia Gallega x Nellore supplemented with chromium picolinate
Authors: Moreira Paulo Sergio Andrade , El Farra Aymann , Guimarães Leonardo Virgilio Gregorio , Lorenço Fabio José , Polizel Neto Angelo , Palhari Celina , Berber Rodolfo Cassimiro Araujo
Published: January 2020

The objective was to evaluate the productive performance and the carcass traits of Nellore (NEL) and Rubia Gallega x Nellore F1 (NRG) heifers, subjected to energy-protein supplementation with chromium picolinate (CrP). Sixty heifers (30 NEL and 30 NRG) with a mean initial adjusted body weight (BW) of 214.50 kg and mean age of 201 days were distributed into a completely randomized design, in a 2 x 2 factorial (2 genetic groups x 2 supplementation groups). The experimental period lasted 320 days. There was no interaction (p>0.05) between the genetic groups and the supplements. The addition of CrP to the supplement did not alter the performance and carcass characteristics evaluated (p>0.05). However, the NRG genetic group was better than the NEL in the performance characteristics as final live weight, mean daily gain and carcass yield as carcass yield, Muscularity (p≤0.05).The use of the Rubia Gallega genotype in crossbreeding provides an increase in production of heavier carcasses with lower fat percentages and higher yields when compared to the use of Nellore heifers.
Does the irrigated mango cultivation in the semiarid change the Physical and chemical attributes of the soil?
Authors: Santos Leane Rodrigues dos , Lima Augusto Miguel Nascimento , Rodrigues Marcos Sales , Cunha Jailson Cavalcante , Santos Laura Paula Araújo dos , Soares Emanuelle Mercês Barros , Silva Adriano Victor Lopes da , Souza Isadora Mororó de
Published: January 2020

The replacement of native vegetation by crops may result in changes in the chemical and physical attributes of the soil, preventing the sustainability of the agricultural production. Therefore, the aim of this study was to evaluate, in two consecutive years (2014 and 2015), the effect of irrigated mango cultivation in some physical and chemical attributes of the soil in relation to Caatinga in Petrolina-PE, Brazil. In areas under irrigated mango (under the canopy region and the row spacing) and Caatinga (taken as reference), soil samples were collected at the 0-10 and 10-20 cm depths. The chemical and physical analyzes were performed, and were calculated bases sum (BS), cations exchangeable capacity (CEC) and base saturation (V, %). The irrigate mango cultivation (canopy region) increased the macronutrients content (P, K, Ca and Mg), BS and V (%) for both evaluated years at the 0-10 and 10-20 cm depths. In soil under irrigated mango cultivation (under the canopy region and in the row spacing), the macronutrient contents presented a stochastic pattern in the years of 2014 and 2015. The change of land use, from Caatinga to irrigated mango cultivation, does not induce a negative impact in the soil chemical attributes under the adopted management conditions.
Nodal segments and zygotic embryos in culture media for the in vitro propagation of tamarind
Authors: Ferreira Antonio Flávio Arruda , Cordeiro da Silva Marcela Sant'anna , Monteiro Laís Naiara Honorato , Faria Glaucia Amorim , Boliani Aparecida Conceição , Rodrigues Maria Gabriela Fontanetti , Pereira Flávia Dionísio
Published: January 2020

There has been a lack of research on the propagation methods of tamarind, hindering the availability and supply of its products. Considering the nutraceutical potential of tamarind and the long-time required to initiate production, this study aimed to evaluate the establishment of nodal segments and the germination of in vitro zygotic embryos of tamarind plants in culture media, salt concentrations, and activated charcoal, aiming at the establishment of an in vitro propagation protocol. For this purpose, MS and WPM media with 25, 50, 75 and 100% salt concentrations were used both with and without activated charcoal (2 g L-1) for the inoculation of nodal segments and zygotic embryos of tamarind. The experiment was conducted in a completely randomized experimental design, in a 2 x 4 x 2 factorial scheme (culture media x salt concentrations x activated charcoal) with 20 replications. It was observed that the in vitro establishment of tamarind nodal segments is viable when using the MS medium with 75% of salts plus 2 g L-1 of activated charcoal and that for the germination of zygotic embryos there was no influence of the treatments. It was also observed that in order to increase the length of the formed plantlets, the MS and WPM media can be employed with 75% of salts.
Anthropometric profile, body composition and somatotype in elite traditional rowers: A cross-sectional study
Authors: León Guereño Patxi , Urdampilleta Aritz , Zourdos Michael C. , Mielgo-Ayuso Juan
Published: January 2020

Introduction: Given the importance of body composition in sports performance, it is vital to have references of elite athletes which serve as a guide when it comes to overseeing diet and training.The aim of this study was to describe the anthropometric values of an elite team of traditional rowers in order to build an anthropometric profile in this sport. Material and methods: A cross-sectional design with twenty elite, male traditional rowers aged at 29.3 (3.6) years reported to the laboratory on a single day at the start of the competitive season. Height, wingspan, body mass, 8 skinfolds, 2 bone diameters and 6 perimeters were measured by the same internationally certified anthropometrist. Anthropometric measurements were taken following the International Society of Advancement of Kinanthropometry (ISAK) protocol. Fat mass was calculated using different equations for athletes and muscle mass using the Lee equation. For the somatotype components, the Carter and Heath equation was applied.Results: elite traditional rowers had a wingspan of 189 (5.8) cm, body fat percentage of 8.0 (1.2)% (Carter), 8.0 (1.8) (Withers), 7.0 (1.2)% (Yuhasz), and 10.9 (1.1)% (Faulkner). Muscle mass was 43.3 (2.4)% (Lee). The somatotype was endo-mesomorphic with endomorphy values of 3.5 (0.4), mesomorphy 4.7 (0.6) and ectomorphy 2.4 (3.5).Conclusion: These results suggest that wingspan seems to be of great importance for elite traditional rowers; while average height may not be as important for performance as wingspan. Meanwhile, reducing body fat percentage is likely to be beneficial in order to achieve elite rowing status.
In search of a social pedagogical profession in schools. Missions and roles under reconsideration
Authors: Anderberg Mats
Published: January 2020

School is one of the areas where social pedagogy has taken on an increasingly important function. Supported by available literature, the aim of this literature review is to describe and analyse how the work of social pedagogues in schools can be manifested. The literature review shows that social pedagogical work in schools is common in many countries and emerging in others. The study shows a wide variation both between and within countries with regard to the mission and goals, status, role and function, tasks and activities of social pedagogues. The primary mission is inclusion of pupil groups or individuals with various types of psychosocial problems or school-related difficulties, followed by preventive work aimed at all pupils to counteract social exclusion in school, disciplining groups of pupils who are in various ways disrupting or breaking school norms, a consciousness-raising and mobilising mission and a more general teaching mission aimed at citizenship and democratic upbringing. The literature review shows that social pedagogy as a profession enjoys high currency and relevance in schools with a view to preventing the segregation and exclusion of pupils.
Imagining social pedagogy in/for New Zealand
Authors: Schoone Adrian
Published: January 2020

On the face of it, social pedagogy has no recognised presence in New Zealand. The education workforce, and society, are generally unfamiliar with the term ‘pedagogue’ and what that role entails. Despite this, a range of vocations in New Zealand reflect social pedagogical practices. In this article I explore one of those vocations: tutors who work in alternative education centres. Charged with caring for and educating students who become disenfranchised from conventional secondary schools, these tutors draw from their life experiences, cultural knowledges, sporting and arts skills and vocational skills to provide a holistic education. Based on the findings of a poetic inquiry in which I re/presented the experiences of tutors through creating found poetry, I present 21 attributes of tutors’ identity. In describing tutor character, tutor pedagogy and tutor achievement, I imagine these tutors as social pedagogues in New Zealand. I conclude by suggesting that these tutors play a vital role in helping students to navigate through education and life. In addition, tutors in New Zealand contribute to our global understanding of social pedagogical practice.
Aprendizagem significativa do conceito de polígono e as tomadas de decisão de uma professora de matemática
Authors: Viana Odalea Aparecida , Barbosa Ana Carolina Igawa
Published: January 2020

O trabalho apresentado tem por objetivo analisar as decisões de uma professora de matemática no processo de elaboração e aplicação de uma sequência didática que visava à aprendizagem do conceito de polígono no ensino da Matemática. O trabalho foi desenvolvido junto ao Mestrado Profissional em Ensino de Ciências e Matemática (PPGECM) da Universidade Federal de Uberlândia (UFU) e direcionado a alunos do sexto ano do ensino fundamental. As aulas foram gravadas em áudio e vídeo e utilizaram-se folhas com registros dos alunos. Foram elencadas quatro tomadas de decisão relativas a: (a) elaboração do material de aprendizagem (livro didático ou material próprio); (b) estratégia de ensino (recepção verbal ou descobrimento); (c) promoção dos diálogos (definições formais ou informais) e (d) condução da postura de aprendizagem (significativa ou mecânica), tendo como base a teoria da aprendizagem significativa de David Ausubel. A análise qualitativa e explicativa, dentro do escopo da chamada pesquisa do professor, evidenciou que a professora decidiu por construir um material potencialmente significativo; por encaminhar a aprendizagem por recepção verbal; por promover diálogos que resgatavam as palavras dos próprios estudantes, mas com incentivo às definições formais, e por conduzir a aula de modo a incentivar a postura de responsabilidade para aprendizagem significativa.
O sermão, o hino e a ordem do dia: memórias de uma escola isolada rural
Authors: Souza Grasielly dos Santos de , Andrade Mirian Maria
Published: January 2020

Neste artigo olhamos para as memórias de sujeitos vinculados a uma escola isolada rural, localizada no município de Bandeirantes, Norte do Estado do Paraná. A modalidade de escola aqui estudada, a Escola Isolada Rural, é uma experiência educacional pública do Estado do Paraná implantada por volta de 1930 e extinta na década de 1970, representa um número restrito no conjunto de escolas primárias rurais do Norte do Estado do Paraná. A fonte principal do estudo é constituída por entrevistas realizadas com uma professora e três ex-alunas da Casa Escolar Lourenço Ormenezze, mobilizando a História Oral como aporte teórico-metodológico. Os procedimentos metodológicos possibilitaram criar quatro narrativas por meio das entrevistas realizadas. A análise das fontes orais evidenciou como principais critérios norteadores, tais aspectos: são consideradas as exigências dos inspetores de ensino e os modos como essas exigências eram (ou não) encaminhadas pelas professoras e pela comunidade campesina, com o que se esboça um cenário sócio-histórico sobre o ensino das primeiras letras na zona rural do interior paranaense e, ainda, um caminhar sobre as estruturas físicas da escola até adentrar às concepções de sala de aula. Disso resulta uma percepção da necessidade de promover a igualdade de condições para que a comunidade rural pudesse experienciar as oportunidades que lhes eram prometidas, ou seja, o direito à educação.
Teknik Ceklis sebagai Asesmen Perkembangan Sosial Emosional di RA Insan Mulia Bambanglipuro
Authors: Hasanah Fitria Fauziah , Latif Muhammad Abdul
Published: January 2020

This study aims to analyze the use of checklist techniques as an assessment to determine the emotional social development of early childhood. The method used in this research is descriptive qualitative by describing checklist techniques as an assessment used to determine emotional social development. This research uses data collection techniques including observation, interviews and documentation conducted at RA Insan Mulia Bambanglipuro, Bantul, Yogyakarta. Based on the results of research that has been carried out shows that RA Insan Mulia Bambanglipuro implement assessment techniques to assess the development of their students using three techniques namely checklist techniques, anecdotal notes and the work. including for assessing social emotional development using all three techniques, but one of the most prominent techniques to use is the checklist technique. This checklist technique is used by RA Insan Mulia in accordance with the 2015 Early Childhood Education Learning Assessment Guidelines, Ministry of Education and Culture Directorate General of Early Childhood Education and Community Education in 2015.
El sentimiento de fundamentalidad en Zubiri
Authors: Vargas Esteban , Colomer Eugenia
Published: January 2020

El escrito intenta desarrollar el papel que jugaría el sentimiento en la fundamentalidad en Zubiri, lo que se expresa en diversas actitudes ante el problema de Dios (teísmo, ateísmo, etc.). Proponemos que el sentimiento permite, por una parte, dirigir la creación de diversas posibilidades de realización a través de juicios de valor. Dirige, en cierto modo, la búsqueda de estas diversas actitudes. Por otra parte, permite la «probación» o experiencia de los esbozos de esas actitudes. Por ejemplo, la experiencia negativa de una determinada concepción de Dios es condicionada no sólo por aspectos intelectivos sino de sentimiento. Damos algunos ejemplos de ello sacados de la vida de algunos filósofos.