bluuebunny/crossref_metadata_2025 huggingface dataset:
Phase Formation and Morphological Features of Calcium Copper Titanate by Modified Solid State Process
Authors: SAH ASHNARAYAN , MUKHERJEE SOUMYA , SHAHNAWAZ MOHAMMED , BANERJEE SATH
Published: April 2019

Perovskite calcium copper titanate posses giant dielectric constant making it a suitable candidate for possible applications in microelectronic components, advanced transistors, energy storage capacitors. Generally, this grade of material is synthesized by the chemical route to improving homogeneity, controlled size growth for enhanced properties. In the present research, a simple synthesis process was adopted using precursors of high purity oxides like Calcium carbonate, titania, Copper oxide without any use of complicated synthesis routes and costly chemical precursors. The molar ratio of oxides used was about 1:3:4 with mechano-chemical activation in an agate mortar for 20, 25 and 30 hours respectively in dry condition. After milling, powders obtained were made to undergo annealing at a fixed temperature of 900°C for 26 hours soaking period. Phase analysis was carried to determine the phase along with crystallite size calculation. Bonding information of the synthesized sample was analyzed to obtain the M-O coordination and vibration-stretching analysis of the bonds. Morphological features were also noted using FESEM (Field Emission Scanning Electron Microscopy) for understanding grains and granular boundaries. Both FTIR (Fourier Transform Infra-Red Spectroscopy) and XRD (X-Ray Diffractogram) analyses confirm the compound formation in terms of molecular structure responsible to obtain the proper phase.
Synthesis of New Pyrimidinone Derivatives and Their Respective Biological Activity Assessment
Authors: M. Elsharif Asma
Published: April 2019

Barbituric acid is converted into a pyrimidinone-incorporated pyrazolyl moiety (1), which is a key starting material. 1 can be converted into pyrimidine dione, isoxazole, pyrimidopyrimidine, and pyranopyrimidine by reacting with hydrazine hydrate and/or phenyl hydrazine, hydroxyl amine, urea, thiourea, guanidine, ethyl acetoacetate and ethyl cyanoacetate. Acylation of 1 gave an important key intermediate (7), which was condensed to form chalcone, which then underwent cycloaddition into cyclohexenes (8-13). Some newly synthesized compounds were screened as anti-diabetic agents and exhibited significant activity. These freshly manufactured compounds were characterized using different methods. These compounds showed significant activity as anti-diabetic agents, especially compound 4b, with IC50= 13.54 μg/ml, which is very close to that of the standard acarbose (IC50= 12.87 µg/ml). Additionally, these compounds showed cytotoxic inhibition activity against the colon carcinoma (HCT116), hepatocellular carcinoma (HEPG2), and breast carcinoma (MCF7) cells; compounds 11, 4b, and 10 showed the best activity, with IC50 = 19.3, 2.6, and 5 μg/ml, respectively.
The Investigation of the Depressor Additives Application Efficiency for Asphaltene-Resin-Paraffin Deposits Inhibition and Stripping in Petroleum Storage Tanks
Authors: Abilmagzhanov Arlan Zainutallaevich , Ivanov Nikolay Sergeevich , Kozhabekov Serik Samsalievich , Abdikalykov Erlan Nurzhanuly , Kydyrbayeva Uldana Ormankyzy , Nurtazina Aizhan Erkinbekkyzy
Published: April 2019

Possibility of heated petroleum application with various additives addition as solvents for asphaltene-resin-paraffin deposits was analyzed. An object of this investigation was chosen petroleum selected from tank farm of the Kazakhstan oil refinery and samples of bottom sediments (ARPD) formed during storage in tanks. Deposits type in line with ARPD classification was identified. Additives impact on petroleum capacity in relation to ARPD was investigated. The most effective additives to inhibiting and removing bottom settlings formed in petroleum storage tanks were determined.
Synthesis of Nanocurcumin - Alginate Conjugate and its Characterization by XRD, IR, UV-VIS Andraman Spectroscopy
Authors: Joly A , Latha M. S
Published: April 2019

The compounds which extracted from spices and herbs exhibit antiviral, anti-fungal and anti-cancerous effects having potential pharmacological uses. Curcumin, a component of turmeric, which has been used as a food additive and a coloring material in India and other Asian countries due to its potential medicinal properties. Earlier reports suggest that application of curcumin in foods is limited because of its low bioavailability and its high degradation in acid and alkaline medium. In this study the effect of stabilization of both free curcumin and nano curcumin – alginate conjugate in honey was studied by UV–vis absorption, IR, vibrational spectroscopy (Raman)and XRD. Curcumin is degraded in acid and alkaline medium is highly stable with the nano formulation. From this work it was deduced that in presence of surfactant honey curcumin- alginate inhibits the formation of small sub-products. This work reveals the complexation of curcumin with alginate in presence of surfactant honey was demonstrated to protect this molecule from the degradation. UV–vis, FTIR XRD and Raman spectroscopy were important to determine the nature of the structural modifications.
Antioxidant Potential of Zingiber officinale Rhizome and Fagara zanthoxyloides Root Extracts and their Application in Soybean oil During Accelerated Storage
Authors: Peter Abimbola Oluyori , Abosede Adejumoke Inyinbor , Adewumi Oluwasogo Dada , Grace Olapeju Oyedepo , Temitope Olabisi Abodunrin , Oluwafemi Awolesi
Published: April 2019

The oxidative instability of vegetable oils which contain polyunsaturated fatty acids and the health implication of synthetic antioxidants is the reason for the current intensive search for safer natural antioxidants. Hence, the total phenolic content and 2,2-diphenyl-1-picryhydrazyl (DPPH) radical scavenging activity of Fagara zanthoxyloides root and Zingiber officinale rhizome have been comparatively evaluated. Zingiber officinale cold extract (GC) exhibited highest DPPH scavenging activity as well as the highest TPC while the hot extract from Fagara zanthoxyloides root (FH) had more phenolic content than its cold counterpart. Consequently, the anti-oxidative potential of refined soybean oil fortified with GC and FH was investigated at 65°C (accelerated storage temperature) for a lenght of 24 days. Established indicators such as peroxide, p-anisidine and total oxidation value (TOTOX) were used to monitor the extent of lipid deterioration with butylated hydroxyanisole (BHA) as the positive control. Generally, GC was more effective in stabilizing the soybean oil. After 24 days of storage, soybean oil fortified with GC, FH and BHA achieved 68.58%, 57.50% and 67.56% retardation in the formation of primary oxidation products respectively. The lowest TOTOX (146.38) value was also observed in GC supplemented oil, suggesting that GC could be effectively employed as a replacement for BHA in soybean oil preservation. Hence, extracts from Zingiber officinale rhizome and Fagara zanthoxyloides roots can be explored as sources of natural antioxidants for application in the food industry.
Mechanisms of failure and survival of total femoral endoprosthetic replacements
Authors: Medellin M. R. , Fujiwara T. , Clark R. , Stevenson J. D. , Parry M. , Jeys L.
Published: April 2019

Aims

The aim of this study was to evaluate the prosthesis characteristics and associated conditions that may modify the survival of total femoral endoprosthetic replacements (TFEPR).

Patients and Methods

In all, 81 patients treated with TFEPR from 1976 to 2017 were retrospectively evaluated and failures were categorized according to the Henderson classification. There were 38 female patients (47%) and 43 male patients (53%) with a mean age at diagnosis of 43 years (12 to 86). The mean follow-up time was 10.3 years (0 to 31.7). A survival analysis was performed followed by univariate and multivariate Cox regression to identify independent implant survival factors.

Results

The revision-free survival of the implant was 71% at five years and 63.3% at ten years. Three prostheses reached 15 years without revision. The mean Musculoskeletal Tumor Society score in the group was 26 (23 to 28). The mechanisms of failure were infection in 18%, structural failures in 6%, tumour progression in 5%, aseptic loosening in 2%, and soft-tissue failures in 1%. Prostheses used for primary reconstruction after oncological resections had lower infection rates than revision implants (8% vs 25%; p = 0.001). The rates of infection in silver-coated and non-silver-coated prosthesis were similar (17.4% vs 19.%; p = 0.869). The incidence of hip dislocation was 10%. Rotating hinge prosthesis had a lower failure rate than fixed hinge prosthesis (5.3% vs 11%). After Cox regression, the independent factors associated with failures were the history of previous operations (hazard ratio (HR) 3.7; p = 0.041), and the associated arthroplasty of the proximal tibia (HR 3.8; p = 0.034). At last follow-up, 11 patients (13%) required amputation.

Conclusion

TFEPR offers a reliable reconstruction option for massive bone loss of the femur, with a good survival when the prosthesis is used as a primary implant. The use of a rotating hinge at the knee and dual mobility bearing at the hip may be adequate to reduce the risk of mechanical and soft-tissue failures. Infection remains the main concern and there is insufficient evidence to support the routine use of silver-coated endoprosthesis. Cite this article: Bone Joint J 2019;101-B:522–528.
A randomized controlled trial investigating the value of patient-specific instrumentation for total knee arthroplasty in the Canadian healthcare system
Authors: Teeter M. G. , Marsh J. D. , Howard J. L. , Yuan X. , Vasarhelyi E. M. , McCalden R. W. , Naudie D. D. R.
Published: April 2019

Aims

The purpose of the present study was to compare patient-specific instrumentation (PSI) and conventional surgical instrumentation (CSI) for total knee arthroplasty (TKA) in terms of early implant migration, alignment, surgical resources, patient outcomes, and costs.

Patients and Methods

The study was a prospective, randomized controlled trial of 50 patients undergoing TKA. There were 25 patients in each of the PSI and CSI groups. There were 12 male patients in the PSI group and seven male patients in the CSI group. The patients had a mean age of 69.0 years (sd 8.4) in the PSI group and 69.4 years (sd 8.4) in the CSI group. All patients received the same TKA implant. Intraoperative surgical resources and any surgical waste generated were recorded. Patients underwent radiostereometric analysis (RSA) studies to measure femoral and tibial component migration over two years. Outcome measures were recorded pre- and postoperatively. Overall costs were calculated for each group.

Results

There were no differences (p > 0.05) in any measurement of migration at two years for either the tibial or femoral components. Movement between one and two years was < 0.2 mm, indicating stable fixation. There were no differences in coronal or sagittal alignment between the two groups. The PSI group took a mean 6.1 minutes longer (p = 0.04) and used a mean 3.4 less trays (p < 0.0001). Total waste generated was similar (10 kg) between the two groups. The PSI group cost a mean CAD$1787 more per case (p < 0.01).

Conclusion

RSA criteria suggest that both groups will have revision rates of approximately 3% at five years. The advantages of PSI were minimal or absent for surgical resources used and waste eliminated, and for meeting target alignment, yet had significantly greater costs. Therefore, we conclude that PSI may not offer any advantage over CSI for routine primary TKA cases. Cite this article: Bone Joint J 2019;101-B:565–572.
Combined total hip and knee arthroplasty during the same hospital admission
Authors: Almaguer A. M. , Cichos K. H. , McGwin Jr G. , Pearson J. M. , Wilson B. , Ghanem E. S.
Published: April 2019

Aims

The purpose of this study was to compare outcomes of combined total joint arthroplasty (TJA) (total hip arthroplasty (THA) and total knee arthroplasty (TKA) performed during the same admission) versus bilateral THA, bilateral TKA, single THA, and single TKA. Combined TJAs performed on the same day were compared with those staged within the same admission episode.

Patients and Methods

Data from the National (Nationwide) Inpatient Sample recorded between 2005 and 2014 were used for this retrospective cohort study. Postoperative in-hospital complications, total costs, and discharge destination were reviewed. Logistic and linear regression were used to perform the statistical analyses. p-values less than 0.05 were considered statistically significant.

Results

Combined TJA was associated with increased risk of deep vein thrombosis, prosthetic joint infection, irrigation and debridement procedures, revision arthroplasty, length of stay (LOS), and in-hospital costs compared with bilateral THA, bilateral TKA, single THA, and single TKA. Combined TJA performed on separate days of the same admission showed no statistically significant differences when compared with same-day combined TJA, but trended towards decreased total costs and total complications despite increased LOS.

Conclusion

Combined TJA is associated with increased in-hospital complications, LOS, and costs. We do not recommend performing combined TJA during the same hospital stay. Cite this article: Bone Joint J 2019;101-B:573–581.
Is end-organ surveillance necessary in patients with well-functioning metal-on-metal hip resurfacings?
Authors: Juneau D. , Grammatopoulos G. , Alzahrani A. , Thornhill R. , Inacio J. R. , Dick A. , Vogel K. I. , Dobransky J. , Beaulé P. E. , Dwivedi G.
Published: April 2019

Aims

Cardiac magnetic resonance (CMR) was used to assess whether cardiac function or tissue composition was affected in patients with well-functioning metal-on-metal hip resurfacing arthroplasties (MoMHRA) when compared with a group of controls, and to assess if metal ion levels correlated with any of the functional or structural parameters studied.

Patients and Methods

In all, 30 participants with no significant cardiac history were enrolled: 20 patients with well-functioning MoMHRA at mean follow-up of 8.3 years post-procedure (ten unilateral, ten bilateral; 17 men, three women) and a case-matched control group of ten non-MoM total hip arthroplasty patients (six men, four women). The mean age of the whole cohort (study group and controls) at the time of surgery was 50.6 years (41.0 to 64.0). Serum levels of cobalt and chromium were measured, and all patients underwent CMR imaging, including cine, T2* measurements, T1 and T2 mapping, late gadolinium enhancement, and strain measurements.

Results

None of the MoMHRA patients showed clinically significant cardiac functional abnormality. The MoMHRA patients had larger indexed right and left end diastolic volumes (left ventricular (LV): 74 ml/m2 vs 67 ml/m2, p = 0.045; right ventricular: 80 ml/m2 vs 71 ml/m2, p = 0.02). There was a small decrease in T2 time in the MoMHRA patients (median 49 ms vs 54 ms; p = 0.0003). Higher metal ion levels were associated with larger LV volumes and with shorter T2 time.

Conclusion

Although cardiac function is not clinically adversely affected in patients with well-functioning MoMHRA, modern imaging is able to demonstrate subtle changes in structure and function of the heart. As these changes correlate with systemic ion measurements, they may be consequences of wear debris deposition. Longer, longitudinal studies are necessary to determine whether cardiac function will become affected. Cite this article: Bone Joint J 2019;101-B:540–546.
AAPLICAÇÃO DE EFLUENTE DE ESTAÇÃO DE TRATAMENTO DE ESGOTO EM SOLO CULTIVADO COM GRAMA ESMERALDA (Zoysia japonica)
Authors: Silva Jaíza Ribeiro Mota e , Oliveira Luiz Fernando Coutinho de , Fia Ronaldo
Published: April 2019

Este estudo teve como objetivo avaliar o efeito da aplicação de diferentes taxas de efluente proveniente da Estação de Tratamento de Esgoto da Universidade Federal de Lavras nas características químicas do solo, na produtividade e na composição química da grama Esmeralda (Zoysia japonica). Avaliou-se o pH, condutividade elétrica (CE), matéria orgânica (MO), nitrogênio (N), fósforo (P), potássio (K), sódio (Na), cálcio (Ca) e magnésio (Mg) do solo e a produtividade de matéria seca e os teores foliares de N, P, K, Na, Ca e Mg da grama Esmeralda. O esquema experimental adotado foi o delineamento em blocos casualizados, com cinco tratamentos e quatro repetições. Os resultados obtidos foram submetidos à análise de variância, empregando-se o teste F, e as médias foram comparadas pelo teste de Tukey, ambos a 5% de probabilidade. Após análise, verificou-se que a aplicação do efluente nas diferentes taxas proporcionou aumento significativo nos valores de pH, K, Ca, Mg, e Na do solo e na produtividade de matéria seca e nos teores foliares de N, P, K e Na da grama Esmeralda. No entanto, recomenda-se que a aplicação do efluente seja avaliada por períodos de monitoramento superiores aos deste trabalho, visto que é importante observar as variações climáticas, as condições do solo e o efeito da aplicação do efluente em longo prazo.
OPERAÇÕES EM AGROINDÚSTRIA DE ARROZ A PARTIR DO SOFTWARE ARENA
Authors: Pereira Bernardo Rodrigues , Hornke Nander Ferraz , Gadotti Gizele Ingrid , Bernardy Ruan , Vergara Rafael De Oliveira
Published: April 2019

A identificação de gargalos e eficiência no processo produtivo agroindustrial é de suma importância, visando competitividade do produto frente ao mercado globalizado. Objetivou-se no presente trabalho identificar e verificar o comportamento do fluxo de operações industriais de uma unidade beneficiadora de grãos de arroz. Identificou-se o fluxograma de atividades da unidade de beneficiamento onde o tempo demandado para realização de cada operação foi coletado. Os dados coletados foram submetidos à análise de estatística descritiva com medidas de posição e dispersão, em que foi possível identificar que, em períodos de alto fluxo de recebimento de grãos, a operação de Romaneio é um gargalo do processo devido à grande quantidade de veículos relacionados com as operações subsequentes. Apesar de as 1ª e 2ª pesagens demandarem um curto espaço de tempo, a descarga da matéria-prima é a operação que impossibilita um fluxo uniforme na UBG, visto que a capacidade das moegas graneleiras e os sistemas de descarga da unidade são fatores que limitam o fluxo das operações. Conclui-se que o software Arena foi eficiente na simulação de operações para controle e decisões estratégicas em Unidades Armazenadoras de Grãos, tais como a identificação de operações que retardam o fluxo de matéria-prima dentro da agroindústria.
An Experimental Study on Competitive Coevolution of MLP Classifiers
Authors: Castellani Marco , Lalchandani Rahul
Published: April 2019

This paper investigates the effectiveness and efficiency of two competitive (predator-prey) evolutionaryprocedures for training multi-layer perceptron classifiers: Co-Adaptive Neural Network Training, and a modifiedversion of Co-Evolutionary Neural Network Training. The study focused on how the performance of the two procedures varies as the size of the training set increases, and their ability to redress class imbalance problems of increasing severity. Compared to the customary backpropagation algorithm and a standard evolutionary algorithm, the two competitive procedures excelled in terms of quality of the solutions and execution speed. Co-Adaptive Neural Network Training excelled on class imbalance problems, and on classification problems of moderately large training sets. Co-Evolutionary Neural Network Training performed best on the largest data sets. The size of the training set was the most problematic issue for the backpropagation algorithm and the standard evolutionary algorithm, respectively in terms of accuracy of the solutions and execution speed. Backpropagation and the evolutionary algorithm were also not competitive on the class imbalance problems, where data oversampling could only partially remedy their shortcomings.
Heuristic Approaches to Stochastic Quadratic Assignment Problem: VaR and CVar Cases
Authors: Matousek Radomil , Popela Pavel , Kudela Jakub
Published: April 2019

The goal of this paper is to continue our investigation of the heuristic approaches of solving thestochastic quadratic assignment problem (StoQAP) and provide additional insight into the behavior of di erentformulations that arise through the stochastic nature of the problem. The deterministic Quadratic AssignmentProblem (QAP) belongs to a class of well-known hard combinatorial optimization problems. Working with severalreal-world applications we have found that their QAP parameters can (and should) be considered as stochasticones. Thus, we review the StoQAP as a stochastic program and discuss its suitable deterministic reformulations.The two formulations we are going to investigate include two of the most used risk measures - Value at Risk(VaR) and Conditional Value at Risk (CVaR). The focus is on VaR and CVaR formulations and results of testcomputations for various instances of StoQAP solved by a genetic algorithm, which are presented and discussed.
Finding Multiple Solutions of Multimodal Optimization Using Spiral Optimization Algorithm with Clustering
Authors: Sidarto Kuntjoro Adji , Kania Adhe , Sumarti Novriana
Published: April 2019

Multimodal optimization is one of the interesting problems in optimization which arises frequently in a widerange of engineering and practical applications. The goal of this problem is to find all of optimum solutions in a single run. Some algorithms fail to find all solutions that have been proven their existence analytically. In our paper [1], a method is proposed to find the roots of a system of non-linear equations using a clustering technique that combine with Spiral Optimization algorithm and Sobol sequence of points. An interesting benefit using this method is that the same inputs will give the same results. Most of the time this does not happen in meta-heuristic algorithms using random factors. Now the method is modified to find solutions of multimodal optimization problems. Generally in an optimization problem, the differential form of the objective function is needed. In this paper, the proposed method is to find optimum points of general multimodal functions that its differential form is not required. Several problems with benchmark functions have been examined using our method and they give good result.
Heuristic Methodology for Forecasting of Production in Waste Management
Authors: Smejkalova Veronika , Somplak Radovan , Nevrly Vlastimir
Published: April 2019

The forecast of waste production and disposal is an important requirement for a future waste management planning. The problem is very often a short time series of the database. This paper suggests an approach to forecast the production of multiple waste types in micro-regions taking into account this challenge by combining many techniques. The heuristic methodology consisting of few steps is formulated. First, the input data are transformed and the methods from cluster analysis are repetitively applied. The second step is  about a determination of quality for trend functions based on historical data. In the last step is performed the  testing. The di erent type of representatives from cluster analysis is used to calculate indices of determination which are compared. This procedure is repeated until the criteria hit. The proposed approach reduced the  computational time and managed to aggregate micro-regions with a similar trend. The forecast should have contributions in terms of building new facilities or adaptations to the existing ones, where it is necessary to estimate the production of waste for several years in advance. The article includes a case study of production forecast for several waste types in territorial units of the Czech Republic. The forecast is based on data in years 2009{2014 and following year 2015 was used to assess the quality of the nal models. In the future, the database will expand and thus it will be possible to make more precise estimates and to develop statistical methods to measure this prognostic tool.
Regarding the Behavior of Bison Runners Within the Bison Algorithm
Authors: Kazikova Anezka , Pluhacek Michal , Senkerik Roman
Published: April 2019

This paper proposes a modification of the Bison Algorithm’s running technique, which allows the running group to exploit the areas of discovered promising solutions. It also provides a closer examination of the successful running behavior and its impact on the overall optimization process. The new algorithm is then compared to other optimization algorithms on the IEEE CEC 2017 benchmark solving continuous minimization problems.
The Reconstruction of the Object Surface using Confocal Microscope with Hyperchromatic Lens
Authors: Starha Pavel , Prochazkova Jana , Martisek Dalibor
Published: April 2019

The usage of a tandem-scanning reflected-light microscope is not common but this technology offers the wide possibilities in the area of the surface reconstruction. This article presents a method that can reconstruct the 3D relief from a single image with a known calibrated set of images. The method uses the property that the points in the same height are visualized in the same color and we propose the nonlinear optimization to find this dependence. Subsequently, the low brightness parts are added by circular partial convolution.
Two-Degree-of-Freedom Controller Tuning
Authors: Lang Stanislav , Matousek Radomil , Svarc Ivan
Published: April 2019

Two-degree-of-freedom controllers have the ability to affect the dynamics of a system when the reference value changes. The answer to the question of parameter tuning for this additional lter still remains unclear we describe a new method for the design of said controller. We compare the behaviour of the controllers designed using the presented method versus the classic method on several instances.
Expression of Different Isoforms of Versican During the Development of Mouse Mandibular First Molars
Authors: Xu Fangfang , Cai Wenping , Chen Weiting , Li Lefeng , Li Xuyan , Jiang Beizhan
Published: April 2019

Versican is a large chondroitin sulfate proteoglycan enriched in the extracellular matrix, and it has at least four different isoforms, termed V0, V1, V2, and V3. Although several studies have demonstrated that versican is stably expressed in various developing organs, the expression of versican isoforms during tooth development has not been elucidated yet. Therefore, the present study was to investigate the expression of versican isoforms in the developing mouse molars. The mandibular first molars from embryonic day (E) 11.5 to postnatal day (PN) 21 were used to investigate the expression of versican isoforms by immunohistochemistry, and the gene expressions of versican ( Vcan) isoforms from E13.5 to PN7 were analyzed by quantitative real-time PCR. The results exhibited different expressing patterns of versican isoforms—the stellate reticulum (SR) and the dental mesenchymal cells adjacent to Hertwig’s Epithelial Root Sheath (HERS) only expressed V1 and the mature odontoblasts mainly expressed V2, while the dental papilla and the ameloblasts might both express V0/V1/V2. These results suggested that different versican isoforms may act different roles in the tooth development, and we speculated that V0/V1 might be intimately involved in the cell proliferation while V2 was associated in the cytodifferentiation.
Emotional Awareness and Alexithymia in Smokers Seeking Help for Cessation: A Clinical Analysis
Authors: Carton Solange , Bayard Sophie , Jouanne Céline , Lagrue Gilbert
Published: April 2019

The construct of emotional awareness refers to attending to, identifying, differentiating, and labelling emotions in oneself and in others. Forty-two smokers were evaluated before they stopped smoking and also filled out the Levels of Emotional Awareness Scale (LEAS), the Toronto Alexithymia Scale (TAS-20), and the Sensation Seeking Scale (SSS). Subjects had low levels of emotional awareness and their scores on the emotional components of the TAS-20 were high in comparison to the general French population. No relationship was found between TAS-20 and LEAS, which confirms that these scales measure complementary dimensions of emotional processing that are only partially linked. Whereas sensation seeking was lower in self-rated alexithymic subjects, high scores on Boredom Susceptibility and total SSS among women were related to low LEAS scores. The results highlighted impairment of emotion processing in these subjects. Their state versus trait status is discussed, as well as their defensive functions. Treatment targeting emotional abilities enhancement for these subjects, as in other addictions, may help improve treatment of tobacco dependence.
Mononuclear Binary Complex Formation Equilibria of L-Ornithine with Biologically Essential Metals in TBAB Micellar Media
Authors: ATNAFU A.G. , SRINIVASU R. , SHYAMALA P. , RAO G. NAGESWARA
Published: April 2019

Investigation of mononuclear complex of L-ornithine in tetrabutylammonium bromide (TBAB, a cationinc surfactant) micelle media has been made pH metrically at constant temperature and ionic strength in different percentage of micellar solutions (0.0-2.5 %). Stability constants and best fit model for metal complexes were obtained by MINIQUAD75 computer program on the basis of the analysis of residues and other statistical parameters. Accordingly, ML, ML2, MLH and ML2H for both Co(II) and Cu(II) and ML2 and ML2H for Ni(II) mononuclear chemical models were obtained. The stabilization/destabilization equilibria of the binary system for the model species with percentage composition of micelles at constant ionic strength and temperature could be attributed to dielectric constant and other intrinsic interaction properties of tetrabutylammonium bromide micelle with ligands and metal ions. The plot of percentage of species against pH values has been generated from SIM refined data using origin85 software.
Massive Left Atrium from Severe Mitral Stenosis due to Rheumatic Heart Disease: Clinical Images Not Usually Seen in Modern Radiology and Ultrasound
Authors: Lane Andrew S , Clancy David J , Seppelt Ian M , Orde Sam R
Published: April 2019

Rheumatic heart disease is becoming far less common in the developed world, and therefore expsoure to its complications are been seen less by clinicians. With the increasing ease of world travel, patients with less commonly seen medical conditions are increasingly presenting to Hospitals requiring management of their complications. We present a case of an elderly lady who was a tourist in Australia, who presented with complications of her rheumatic heart disease, and her subsequent radiological and echocardiographic investigations were a significant surpirse for her treating clinicians.
Francia-España: una relación privilegiada en el contexto del fin de la Guerra Fría (1986-2001)
Authors: Trouvé Matthieu
Published: April 2019

Esta comunicación trata de hacer un enfoque sobre la relación bilateral entre Francia y España durante los años 1986-2001, de la adhesión de España a la CEE hasta el inicio de la primera década del siglo XXI. Nuestra hipótesis de trabajo es el nacimiento durante este periodo de una relación privilegiada entre ambas naciones en el marco de la Comunidad/Unión Europea y en el contexto de la posguerra fría, representada por la pareja François Mitterrand-Felipe González. La contribución analiza también los límites de esta relación, basándose en las fuentes del archivo nacional francés (archivo de la Presidencia), los archivos diplomáticos (Francia/España), los archivos de la Unión Europea y la prensa.
Preservice Teachers’ Comfort Levels with Technology in an Online Standalone Educational Technology Course
Authors: Graziano Kevin J.
Published: April 2019

While some researchers and teacher educators recommend the integration of technology throughout a teacher preparation program, it may not be realistic for all teacher preparation programs to comply with this recommendation. A lack of training, a lack of interest from faculty, limited faculty or facilities, and/or a lack of vision from educational leaders may prevent some teacher preparation programs from successfully integrating technology throughout the curriculum. For various reasons, colleges and schools of education may rely on standalone educational technology courses. The purpose of this study was to examine technology comfort levels of preservice teachers who completed an online standalone educational technology course with pedagogy and content integrated into the course curriculum. Findings reveal there were no statistically significant mean differences between students’ comfort levels using technology for personal communication and to teach academic content. The findings have implications for teacher preparation programs and teacher educators.
Using the Photovoice Method to Elicit Authentic Learning in Online Discussions
Authors: Reyes-Foster Beatriz M , DeNoyelles Aimee
Published: April 2019

While online discussions remain popular in college classrooms, mixed results persist about their effectiveness in eliciting authentic learning. This case study explores how students perceive the influence of the Photovoice method on their authentic learning, critical thinking, engagement, and peer interaction in an asynchronous online discussion. Photovoice is a research method combining photography with social action, in which people express their points of view by photographing scenes that highlight certain themes. Students in an online undergraduate course engaged in an online discussion which asked them to connect personal images to the course content. Students reported that this strategy supported authentic learning, critical thinking, engagement, and interaction; in addition, a correlational analysis found that these factors are highly interrelated. This case study proposes recommendations for practitioners interested in using a similar approach.
The Influence of iPads on Course Performance and Student Perceptions of Learning in Human Anatomy
Authors: Scibora Lesley M , Mead Timothy P , Larson Claire
Published: April 2019

The influence of iPad compared to computer-based active and collaborative learning activities on academic performance, along with student attitudes toward technology, engagement, and perceived learning were examined between two one-semester undergraduate-level Human Anatomy classes. Student attitudes and perceived learning were assessed using pre- and post-semester surveys between two simultaneous classes: iPad-integrated (n = 24) and no-iPad (n = 21). No-iPad users reported higher attainment of course objectives (human anatomy factual knowledge, principles and theories, and application of material) than iPad users. IPad users also reported lower levels of course engagement following fifteen weeks of usage whereas no-iPad users reported higher levels of engagement. Both groups showed similar learning gains based on test scores, and final grades. This article explores potential explanations for discrepancies with some previous research by highlighting the importance of consistent instructional methods, regardless of media, in undergraduate education.
As quatro linhas do Incisivo Central Superior (ICS)
Authors: Câmara Carlos Alexandre
Published: April 2019

"Quando se fala em estética bucal, ou seja, na beleza do sorriso, há um componente que se destaca. Na verdade, dois: os dois incisivos centrais superiores (ICS). São eles que, sem exagero, são o destaque do conjunto. Em outras palavras, a dominância dos incisivos centrais é fator primordial para se obter um sorriso agradável. É claro que nenhum belo sorriso vai ser dependente apenas dessa dominância, mas a ausência dessa forte influência certamente irá comprometer a beleza de qualquer sorriso. Pode-se, inclusive, extrapolar e inferir que o correto posicionamento dos incisivos centrais superiores é, também, muito importante para o arranjo de toda a arcada — tanto a superior quanto a inferior —, no que diz respeito aos componentes estéticos, oclusais e funcionais..."
A importância da intrusão do molar superior na reabilitação protética dos dentes inferiores
Authors: Rasul Carolina Nazif , Valarelli Fabrício , Castro Leonardo Graboski de , Freitas Karina Maria Salvatore de , Cançado Rodrigo Hermont
Published: April 2019

Introdução: quando ocorre perda de molares inferiores, é comum observar- se extrusão do antagonista, com redução do espaço interoclusal necessário para a reabilitação protética. Nesses casos, a aplicação do mini-implante como ancoragem esquelética absoluta tem se mostrado de extrema valia, por ser versátil e apresentar benefícios tanto para o paciente quanto para o ortodontista, tornando o movimento de intrusão cada vez menos complexos. Métodos: o presente trabalho apresenta o caso de uma paciente com 33 anos de idade, com extrusão do dente #17 no espaço interoclusal dos molares inferiores ausentes no lado direito. A intrusão foi realizada usando-se mini-implante como ancoragem. Resultados: o dente #17 apresentou intrusão real de 1,5mm e, após a remoção do aparelho, foi realizada a reabilitação protética com implantes na arcada inferior. Conclusão: observou-se que a utilização de mini-implantes foi eficaz para a intrusão do molar superior, tornando-se um valioso recurso para tratar a extrusão de dentes posteriores em decorrência de perdas dentárias na arcada antagonista, e recuperar o espaço interoclusal necessário à reabilitação protética do paciente.
STUDI IMPLEMENTASI KEBIJAKAN DESENTRALISASI ADMINISTRATIF DI MUNICIPIO DILI TIMOR-LESTE
Authors: Joniarta I Wayan , Sucitawathi P I.G.A.AG Dewi , Soares Inácio , Suderana Wayan
Published: April 2019

This research aims to empirically elaborate the implementation of administrative decentralization in Municipio Dili Timor-Leste. This research scrutinizes human resource, financial resource, facilities and implementing structure in bureaucracy to identify implementation effectiveness. This research applies qualitative methods using interviews as methods for collecting data, observation and document reviews. This research found that the implementation of administrative decentralization has not yet been effective. There is a need for capacity building to improve government officers' capability to better off the quality of public service.
First spatial distribution of potentially toxic benthic dinoflagellates in the Lesser Antilles (Guadeloupe and Martinique), Caribbean Sea
Authors: Boisnoir Aurélie , Pascal Pierre-Yves , Marro Sophie , Lémée Rodolphe
Published: April 2019

For the first time, distribution and abundances (cells per gram of fresh macrophyte weight) of potentially toxic benthic dinoflagellates were studied around Guadeloupe (20 sites) and Martinique (six sites) islands (Lesser Antilles, Caribbean Sea). Benthic dinoflagellates were identified at the genus level and cell counts were undertaken on different host species of macroalgae and seagrasses. Abundance values of potentially toxic benthic dinoflagellates were one order of magnitude higher in Guadeloupe than in Martinique. The highest abundances of benthic dinoflagellates were found in the northern part of Guadeloupe Island, while their distribution was more homogeneous in Martinique. Ostreopsis was the dominant genus in Guadeloupe and Martinique. Regarding biotic substrate preferences, Phaeophyceae hosted the highest total abundances of benthic dinoflagellates on both islands, while the lowest total abundances were observed on Ulvophyceae in Guadeloupe and Florideophyceae in Martinique. The genus Gambierdiscus, known as the causal agent of the ciguatera fish poisoning (CFP), developed on all macrophyte groups on both islands without showing any preferences towards biotic substrates. The presence of this potentially harmful dinoflagellate genus in both islands could explain the existence of local cases of CFP in Guadeloupe and Martinique islands.
Effects of Azadirachta Indica Leaf Extract, Capping Agents, on the Synthesis of Pure And Cu Doped ZnO-Nanoparticles: A Green Approach and Microbial Activity
Authors: Handago Dawit Tamire , Zereffa Enyew Amare , Gonfa Bedasa Abdisa
Published: April 2019

The current studies presented the green synthesis of zinc oxide and copper doped ZnO nanoparticles (NPs) using different ratios of Neem leaf extract and its antibacterial application on drug-resistant bacteria. The synthesized NPs were characterized using: X-ray diffractions (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscope (SEM), UV–visible spectroscopy and a simultaneous DTA-TGA thermal analyzer. All the synthesized materials were stable above 400°C. The powder diffraction studies indicated the formation of phase pure materials with wurtzite structure for pure ZnO and 0.5%, 1%, 1.5% Cu doped ZnO with the crystallite size in the range of 16.07 – 23.74 nm. SEM analysis revealed the formation of spherical shaped NPs with large grain size for 10% (v/v) ratio of aqueous leave extract. The aqueous extract of neem act as capping agent and prevent the NPs from agglomeration. The spectral studies confirmed the formation of NPs with the absorbance peak that is different from the micro-size ZnO. The antibacterial activities of the synthesized materials ZnO (1:1) against Staphylococcus aureus and uncalcined ZnO (7:3) and (Zn0.985Cu0.015O) against Bacillus subtilis were enhanced when referenced to the standard gentamicin.
Tunable Brillouin and Raman microlasers using hybrid microbottle resonators
Authors: Zhu Song , Xiao Bowen , Jiang Bo , Shi Lei , Zhang Xinliang
Published: April 2019

We realized a tunable Brillouin laser and a tunable Raman laser by using ultrahigh-quality-factor (Q) hybrid microbottle resonators. The whispering-gallery-mode microresonator-based Brillouin and Raman lasers possess unique advantages (e.g. low threshold, narrow line width, and flexible lasing wavelength region) and various potential applications. Efficient tuning of the Brillouin and Raman microresonator lasers is desirable in many cases. However, the corresponding lasing wavelength tunability is rarely reported. In this work, we realized the ultralow-threshold Brillouin and Raman lasers based on the proposed hybrid microbottle resonators with Q factors over 108. Meanwhile, by feeding the control light through the axial direction of the hybrid microbottle resonators, a Brillouin lasing wavelength tuning range of 2.68 nm and a Raman lasing wavelength tuning range of 2.32 nm are realized, which are one order of magnitude and almost once larger than those reported in the previous works, respectively. Such tunable microlasers could find significant applications in light sources, microwave photonics, and optical sensing.
From “Cuines del Món” Gastronomic BiblioLab to “Cuinem Santa Coloma”: Cooking cultures and social cohesion at Fondo Public Library (Santa Coloma de Gramenet, Barcelona)
Authors: Chavarria Domingo Mariona
Published: April 2019

This communication presents a library service carried out at the Library of Fondo, Santa Coloma de Gramenet. Cuines del Món, a gastronomic BiblioLab, is part of the BiblioLab programme of the MLN at Barcelona province (Catalonia). Cuines del Món starts from an analysis of the surrounding area of the library, a highly intercultural one, and with some associated problems like a high poverty index. Cuines del Món is about gastronomy and cooking but, above all, is about community building, interculturality in view. The aim is to offer a space, a completely equipped kitchen, and related cultural activities, which provide a positive interaction working on common interests producing active and collaborative relationships between people and groups which normally would not establish contact, establishing mechanisms or resources to achieve a culturally diverse participation in its activities, by recognising diversity, promoting the knowledge and the visibility of cultural diversity, and implementing measures to ensure equity, egalitarian access to information and culture, rights, opportunities to people issued from diverse cultural and social origins and avoiding discrimination. All this with an active involvement of citizens.
Senior Sway: Using a Mobile Application to Measure Fall Risk
Authors: Pergolotti Mackenzi , Deal Allison M. , Bryant Ashley L. , Bennett Antonia V. , Farley Erica , Covington Kelley , Lucas Katie , Williams Grant R.
Published: April 2019

Background and Purpose:

The Senior Sway mobile application uses the iPhone/iPad gyroscope to assess postural sway and motion reaction time. Impairment in postural sway and motion reaction time have the potential to increase risk for future falls. Senior Sway thereby has the potential to provide a quick, easy to use, objective measure for predicting falls in older adults. The purpose of this study was to evaluate the feasibility of the Senior Sway mobile application and its associations with fall risk in community-dwelling older adults.

Methods:

Adults older than 62 years were recruited from senior centers and community events. Descriptive and bivariate statistics were used to examine feasibility on the basis of enrollment, time required, satisfaction with application, and association with fall risk.

Results and Discussion:

Fifty-seven adults were recruited. Use of the Senior Sway mobile application was feasible. Ninety-one percent said that they liked the application and reported length of time of assessment was “just right.” The average Senior Sway score was 64.0 (range: 47.8-84.0), which was significantly associated with the 30-second sit-to-stand test. In addition, the motor reaction time score was associated with the Timed Up and Go.

Conclusions:

Senior Sway is a promising application to improve identification of adults at risk for falls and need for rehabilitation but warrants further research.
The Effect of Concrete Wording on Truth Judgements: A Preregistered Replication and Extension of Hansen & Wänke ()
Authors: Henderson Emma L. , Vallée-Tourangeau Frédéric , Simons Daniel J.
Published: April 2019

When you lack the facts, how do you decide what is true and what is not? In the absence of knowledge, we sometimes rely on non-probative information. For example, participants judge concretely worded trivia items as more likely to be true than abstractly worded ones (the linguistic truth effect;Hansen & Wänke, 2010). If minor language differences affect truth judgements, ultimately they could influence more consequential political, legal, health, and interpersonal choices. This Registered Report includes two high-powered replication attempts of Experiment 1 from Hansen and Wänke (2010). Experiment 1a was a dual-site, in-person replication of the linguistic concreteness effect in the original paper-and-pencil format (n = 253, n = 246 in analyses). Experiment 1b replicated the study with an online sample (n = 237,n = 220 in analyses). In Experiment 1a, the effect of concreteness on judgements of truth (Cohen’sdz = 0.08; 95% CI: [–0.03, 0.18]) was smaller than that of the original study. Similarly, in Experiment 1b the effect (Cohen’s dz = 0.11; 95% CI [–0.01, 0.22]) was smaller than that of the original study. Collectively, the pattern of results is inconsistent with that of the original study.