bluuebunny/crossref_metadata_2025 huggingface dataset:
Tourism advertising and cyberspaces of travelling
Authors: Crăciunescu Ana
Published: March 2017

In the context of cyber-globalization, notions such as ‘space’ and ‘place’ are reconsidered from anthropologic and consumerist studies points of view. We aim at describing space and place in the light of tourism advertising as we include all the three notions in the category of nowadays important social phenomena. At the same time, the media appears in our debate as a second layer of space that positions potential hosts and potentials tourists in a different type of relation and perception of space and place. Yet, we are mainly preoccupied by the discursive aspect of space-place couple within virtual touristic experience, considered as prospective reading that may generate real exchange in the destination. This will inevitably lead us to an interdisciplinary research as we aim at balancing our study between cultural anthropology and socio-semiotics.
Literatura – un interstițiu discursiv
Authors: Tucan Dumitru
Published: March 2017

Pornind de la un caz celebru de geneză literară, mai precis rescrierea piesei Englezește fără profesor în varianta La Cantatrice chauve, lucrarea de față analizează relația complexă dintre obiectele cu pretenție literară și spațiul literar. Perspectiva asumată este derivată din pragmatica discursului literar (cf. Maingueneau, 2007), fiind interesată în a observa caracterul procesual al fenomenului literar, caracter care nu poate fi gîndit în afara relației cu metamorfozele imaginarului socio-cultural. Observînd caracterul relațional al noțiunii de literatură de-a lungul istoriei și capacitatea sa continuă de a se metamorfoza în relație cu obiectele care îi contesta stabilitatea, observînd calitatea literaturii de „interstițiu discursiv” sau pe aceea de „discurs constituent”, analiza își propune să arate faptul că obiectele textuale care tentează intrarea în „cîmpul literaturii” sînt semnalele presiunilor pe care istoria și metamorfozele culturale generate de aceasta le exercită asupra fenomenului literar, imprimîndu-i acestuia o importantă dimensiune transgresivă.
THE TASKS OF DOMESTIC ECONOMIC SOCIOLOGY: T. ZASLAVSKAYA'S HERITAGE AND PROBLEMS OF UKRAINIAN SOCIETY
Authors: Petrushyna T.
Published: March 2017

The formation of economic sociology at the post-Soviet area, its subject and research approaches in the context of T. Zaslavskaya's heritage have been considered. A brief overview of the recent studies of the Economic Sociology Department, Institute of Sociology, National Academy of Sciences of Ukraine has been done. In accordance with the basic principles of T. Zaslavskaya's scientific ethics the topical problems of the modern domestic economic sociology have been formulated.
Clinical study and management of bladder outlet obstruction
Authors: Katakwar Pradeep , Thakur Rahul
Published: March 2017

Background: The incidence of bladder outlet obstruction is different and varied in both age and gender. Hence this study was conducted to assess the incidence, etiology and management of bladder outlet obstruction in patients above 18 years of age in both sexes.Methods: This was a tertiary care hospital based longitudinal study. A total of 100 cases were recruited during the period between 01st June 2014 to 31st May 2016 with objective evidence of bladder outlet obstruction. The subject's demographic data, incidence, etiological factors and clinical presentations of bladder outlet obstruction were recorded on data sheet and analyzed.Results: Male preponderance was observed in the study. Maximum incidence of bladder outlet obstruction was observed in the age group of 60-69 years. The most common cause for bladder outlet obstruction in males was benign prostate hyperplasia (BPH), where as in females the major etiological factor was bladder neck stenosis. Out of 94 cases causing bladder outlet obstruction in males, 37 underwent TURP, 11 cases were treated with alpha blockers like Tamsulosin (medical management), 9 underwent cystolithotripsy, 8 underwent b/l orchidectomy, 7 underwent radical cystectomy and ileal conduit, 7 underwent VIU, 7 underwent urethroplasty, 5 underwent open prostatectomy, 3 underwent cystolithotomy whereas in female’s bladder neck stenosis treated by bladder neck incision.Conclusions: Men were the most affected with BPH, being the leading cause. Among women, bladder neck stenosis was the main cause. Initial and definitive management were varied between causes, gender and age.
Совершенствование инфраструктуры управления региональным рынком бизнес-образования
Authors: Анисимова Софья Викторовна
Published: March 2017

В статье представлены результаты проведенного анализа состояния региональных российских школ бизнеса, выявлены их положительные и отрицательные характеристики и сформулированы предложения по совершенствованию инфраструктуры управления региональным рынком бизнес-образования через создание межрегионального информационно-аналитического центра развития бизнес-образования.
Growth of bacterial phytopathogens in animal manures
Authors: Sledz Wojciech , Zoledowska Sabina , Motyka Agata , Kadzinski Leszek , Banecki Bogdan
Published: March 2017

Animal manures are routinely applied to agricultural lands to improve crop yield, but the possibility to spread bacterial phytopathogens during field fertilizing has not been considered yet. We monitored 49 cattle, horse, swine, sheep or chicken manure samples collected in 14 Polish voivodeships for the most important plant pathogenic bacteria - Ralstonia solanacearum (Rsol), Xanthomonas campestris pv. campestris (Xcc), Pectobacterium carotovorum subsp. carotovorum (Pcc), Pectobacterium atrosepticum (Pba), Erwinia amylovora, Clavibacter michiganensis subsp. sepedonicus and Dickeya sp. All tested animal fertilizers were free of these pathogens. Subsequently, the growth dynamics of Pba, Pcc, Rsol, and Xcc in cattle, horse, swine, sheep and chicken manures sterilized either by autoclaving or filtration was evaluated. Investigated phytopathogens did not exhibit any growth in the poultry manure. However, the manure filtrates originating from other animals were suitable for microbial growth, resulting in the optical density change ranging 0.03 - 0.22, depending on bacterial species and the manure source. Pcc and Pba multiplied most efficiently in the cattle manure filtrate. These bacteria grew faster than Rsol and Xcc in all tested manure samples, both filtrates and the autoclaved semi-solid ones. Though, the growth dynamics of investigated strains in different animal fertilizers was unequal, all tested bacterial plant pathogens were proven to use cattle, horse, swine and sheep manures as the sources of nutrients. These findings may contribute to further research on the alternative routes of spread of bacterial phytopathogens, especially because of the fact that the control of pectionolytic bacteria is based only on prevention methods.
Are Novel Allergen or Hydrolysed Diets an Effective Means of Reducing the Gastro-intestinal Signs in Dogs With Inflammatory Bowel Disease When Compared to Oral Prednisolone?
Authors: Swallow Adam
Published: March 2017

Clinical bottom line

Novel allergen or hydrolysed diets are a valid modality for the management of gastro-intestinal symptoms in dogs with chronic enteropathy, however bias in case selection in the literature means a direct comparison of dietary modification versus prednisolone was not able to be achieved. Further prospective trials would be needed to better answer this PICO.
PENGARUH PEMBERIAN EKSTRAK DAUN CARICA PUBESCENS Lenne & K. koch TERHADAP KETEBALAN EPITEL GINGIVA MENCIT BETINA YANG DIPAPAR ASAP ROKOK
Authors: Aprinda Kristanti Risma
Published: March 2017

The exposure from cigarette smoke in long term can destroy oral mucous, thickening of the epithel gingival tissue, and keratotic white spot that sign leukoplakia and oral cancer. Several components in the C.pubescens leaf for example atsiri oil, polifenol, and flavonoid are kown has antioxidant acivity. The major component in C.pubescens leaf that have antioxidant activity is vitamin C. The aim of this study is to examine the effect of C. pubescens leaf extract to the thickness of gingival tissue from female mices that got cigarette smoke exposure. Twenty five adult female mices were devided into five group and they exposed by cigarette smoke for twenty one day. K1 group as negative control were given by cmc, K2 group as positive control were given by 0,2 mg vitamin C, K3 group were given by 0,5 g/KgBW C. pubescens extract, K4 group were given by 1 g/KgBW C. pubescens extract, and K5 group were given by 2 g/KgBW C. pubescens extract. At the end of 22nd day, the mices were sacrificed and the gingival mucosa were collected for histologist preparations.The result of this study shows that K2 group has the thickest gingival epithel layers while there is significant different among five group for the thikness gingival epithel layers.
The NICU Environment: Infusing Single-Family Room Benefits into the Open-Bay Setting
Authors: Meredith Jenna L. , Jnah Amy , Newberry Desi
Published: March 2017

Abstract

Two distinct architectural designs are found in today’s NICUs—the open-bay (OPBY) and the single-family room (SFR) designs. When neonatology was recognized as a medical subspecialty in the 1970s, the OPBY design was the only platform offered to neonates and families. The OPBY design facilitated communication between staff, collegiality, and interprofessional collaboration among members of the neonatal team. Over time, pitfalls to the design were recognized, including increased transmission of sound and light. As a result, the SFR design emerged offering a family-centered, customizable environment. Through recognition and adoption of best practices, the neurodevelopmental benefits to SFRs can be infused within the OPBY unit. This article aims to identify best practices to infuse the benefits of SFR design (such as low light, low sound, and less overstimulation) into the OPBY NICU to reduce negative stimulation and optimize developmental outcomes for vulnerable neonates.
Effect of cpp-acp on the bond strength of silorane and methacrylate based restorative systems
Authors: Barreto Bruno de Castro Ferreira , Catelan Anderson , Aleixo Marina Baptista , Silva Gisele Rodrigues , Xavier Tathy Aparecida , Aguiar Flávio Henrique Baggio , Soares Carlos José
Published: March 2017

This study evaluated the influence of the previous application of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) on the bond strength of two restorative systems to dentin. Self-etching adhesive systems Clearfil SE Bond (Kuraray) and FiltekTM LS System Adhesive (3M ESPE) were used in combination with two micro-hybrid composites FiltekTM Z250 (3M ESPE) and FiltekTM LS (3M ESPE), respectively. Twenty-eight sound human third molars had the occlusal surface worn until the total exposure of dentin and were randomly divided into 4 groups (n = 7): G1 (Clearfil + Z250), G2 (CPP-ACP + Clearfil + Z250), G3 (LS system) and G4 (CPP-ACP + LS system). The application of the paste containing CPP-ACP was held in the dentin of G2 and G4 prior to adhesive protocol, which followed the manufacturer's recommendations. Two cylinders of a single increment of resin composite were built on each dentin surface using tygon`s matrix with 1.26 mm of diameter x 1 mm high and light-cured with LED Bluephase 16i (Vivadent) apparatus. Microshear bond strength test was conducted in a universal testing machine (EZ Test, Shimadzu) with a speed of 0.5 mm/min. The data were subjected to two-way ANOVA test with a significance of 5%. There was no significant difference on bond strength between restorative systems with or without the previous use of a CPP-ACP paste. It was concluded that the application of CPP-ACP in the dentin prior to adhesive protocol did not influence the bond strength of the restorative systems tested.
Composite resin susceptibility to red wine staining after water sorption
Authors: Catelan Anderson , Barbosa Gabriella Lopes de Rezende , Suzukic Thaís Yumi Umeda , Barreto Bruno de Castro Ferreira , Giorgi Maria Cecília Caldas , Goiato Marcelo Coelho , Santos Paulo Henrique dos , Aguiar Flávio Henrique Baggio
Published: March 2017

Color stability of restorative materials is essential for longevity of esthetic composite restoration over time. The aim of this investigation was assess the effect of prior water immersion on the color stability of a composite resin to red wine staining. Seventy disc-shaped specimens (6 mm x 1.5 mm) were carried out and randomized in 7 groups (n = 10), according to distilled water immersion time at 0 (control), 24, 48, 72,120,192, and 240 h. Baseline color was measured according to the CIE L*a*b* system using a reflection spectrophotometer (UV-2450, Shimadzu). After that, the specimens were storage in red wine for 7 days. Color difference (∆E) after aging was calculated based on the color coordinates before (baseline) and after storage period. Data were subjected to one-way ANOVA (alpha = 0.05). The different times of immersion in .water before to the red wine storage showed similar behavior on the color stability, without statistical difference compared to control group, immersed directly in the wine (p = 0.7057). The previous water uptake of composite resin evaluated did not decrease the susceptibility to red wine staining.
Demonstration of protocol for computer-aided forensic facial reconstruction with free software and photogrammetry
Authors: Moraes Cícero André da Costa , Dias Paulo Eduardo Miamoto , Melani Rodolfo Francisco Haltenhoff
Published: March 2017

Purpose: Forensic facial reconstruction (FFR) is an auxiliary technique that approximates a face in order to generate identifications. Technological development allows access to open software that can be applied to FFR. The demonstrated protocol has features from creating 3D replicas of the skull to finishing and displaying the reconstruction. PPT GUI is used for 3D scanning, and the resulting point cloud is converted into a 3D mesh in MeshLab. The sculpture is made in Blender, according to the user’s preferred technique. The adaptation of the skin layer and finishing of the reconstruction is optimized with the use of templates. In this phase, details can also be hand-carved. Allied to basic training in the software featured in this protocol, the open access to these tools and its independence of imaging hardware other than digital cameras is an advantage to its application in forensic and research contexts.
PREVALENCE OF MANDIBULAR ASYMMETRY IN SKELETAL CLASS I ADULT PATIENTS
Authors: Gribel Bruno Frazão , Thiesen Guilherme , Borges Tássia Silvana , Freitas Maria Perpétua Mota
Published: March 2017

AIM: The objective of this study was evaluating the prevalence of mandibular asymmetry in skeletal Class I adult patients. MATERIALS AND METHODS: The sample was composed by cone-beam computed tomography images of 250 skeletal Class I patients with age from 18 to 70 years old. The side deviation of mandibular asymmetry was evaluated (right and left), as well as the intensity of this asymmetry. People with gnathic deviation until 2mm were considered as patients with slight asymmetry; deviation between 2 and 5mm was considered moderate asymmetry and those higher than 5mm as severe asymmetries. The error calculation method was performed and there was not significant error in the measurements. To verify the association between the prevalence of mandibular asymmetry and the gender of individuals, the Χ2 was carried out and the significant level adopted was 5% (p<0.05). RESULTS: The results showed that mandibular deviation occurred more frequently to the left side in both genders (male 56.5% e female 58.2%), without statistically significant difference between them (p=0.792). Besides, the prevalence of slight, moderate and severe asymmetries were, respectively 61%, 27% and 12% for males and 54%, 28% and 18% for female; and there was not statistically significant difference (p=0.366) between the gender of the sample evaluated. CONCLUSION: In this study, both deviation and intensity of mandibular asymmetry did not present preference regarding to the gender.
Prevalence of mesiodens among 6-14 year school children
Authors: Peediayil Faizal , Kottayi Soni , Jose Deepak , Sreenivasan Prathima , Babu Arun , Hashim Aysha , Khader Deema Abdul
Published: March 2017

Mesiodens are considered as one of the most common supernumerary teeth. The main objective of the study was to determine the prevalence rate of mesiodens  in the school going children between the age group of 6-14 years The study shows a prevalence rate of 0.7% with sex ratio of 2:1 favouring males.
Low-level laser therapy for temporomandibular disorders (tmd) treatment: a systematic review of randomized trials
Authors: Leite Priscila , Melo Nicole , Silva Pâmela , Montenegro Robinsom , Bonan Paulo , Batista André
Published: March 2017

AIM: Conducting a systematic review of randomized clinical trials focusing on the efficacy of LLLT on pain control in patients with TMD, diagnosed by the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). MATERIAL AND METHODS: Search was performed at PubMed/MEDLINE database with the terms: (1) “Laser AND temporomandibular disorders”; (2) “Laser AND temporomandibular disorders AND RDC/TMD”; (3) “Low-level laser therapy AND temporomandibular disorders”; (4) “Low-level laser therapy AND temporomandibular disorders AND RDC/TMD”; (5) “Low-level laser therapy AND temporomandibular joint dysfuntion syndrome”; (6) “Low-level laser therapy AND temporomandibular joint dysfuntion syndrome AND RDC/TMD”; (7) “Laser AND temporomandibular joint dysfuntion syndrome” (8) “Laser AND RDC/TMD”; (9) “Low-level laser therapy AND RDC/TMD”. Inclusion criteria: articles need to be randomized clinical trial performed in humans; evaluate the effect of LLLT in the treatment of TMD diagnosed by the use of RDC/TMD; published in English or Portuguese in the last 10 years. Protocol studies and pilot studies were excluded. RESULTS: Ten studies were included. The type of laser used was Gallium Aluminum Arsenide (GaAlAs) diode, with exception of 1 paper, which used super pulsed Gallium Arsenide laser. Eight studies reported decreased in pain levels, in two articles there was no statistically significant difference between test and placebo groups. CONCLUSION: In most studies, LLLT was effective in pain remission, but there is no standardization in parameters like wavelength, output power and frequency. Studies with more complex experimental designs, standardized diagnostic criteria for TMD and defined protocols for the use of LLLT are needed to determine its efficacy in the treatment of TMD.
Color stability of esthetic restorative material after topical fluoride application
Authors: Chhabra Chaya , Tavargeri Anand , Anegundi Rajesh , Patil Shruti , Chhabra Kumar Gauray
Published: March 2017

AIM: Present study was conducted to compare the effect of topical fluoride agents on color change of three aesthetic restorative materials. MATERIAL AND METHODS: Restorative material used were Ketac Fill type II (GIC), Filtek Z350(Composite) and Beuttifull II (Giomer). Topical Fluorides used were Pascal (1.23% APF gel) and Fluoride Varnish (Bifluoride). 24 samples of each restorative material were prepared, which were divided into 8 each, among three groups. Treatment of Group A with APF gel, Group B with Varnish was done and Group C with distilled water which was used as a control, followed by immersing of samples in artificial saliva for 48 hr. Samples were then subjected to colorimetric analysis. Data collected was statistically analysed using one way ANOVA and Tukys Post Hoc Test. RESULTS: GIC showed statistically significant change in color in both APF and Varnish group compared to composite and Giomer after 48 hr. CONCLUSION: Present study concludes that Topical fluoride agents have detrimental effect on color of aesthetic restorative materials. Giomer was least effected out of the three restorative materials and this can be used as alternative to other restorative material.
Periodontal status among tibetan refugees residing in jodhpur city
Authors: Deora Savita , Saini Aditya , Bhatia Priyamvada , Abraham Dennis V , Masoom Syeda Nazia , Yadav Komal
Published: March 2017

AIM: The present study is an attempt to evaluate the periodontal characteristics of this Tibetan refugee population and discuss possible oral health promotion activities. MATERIAL AND METHODS: 124 Tibetan were examined for the periodontal status using CPI and LOA index in Tibetan refugee camps in Jodhpur city, Rajasthan. RESULTS: Overall prevalence of periodontal disease among Tibetan refugees was 69%. Majority of the study participants {253(34%)} had CPI score 2. Periodontal status in Tibetan refugees is significantly (p≤0.05) associated with age group. Majority of study participants 232(32%) had LOA score 0. CONCLUSION: As age increases the periodontal diseases increases among study participants. There is significant association between age groups and periodontal status of Tibetan refugees.
Herbal medicines in dentistry: history, obtainment methods, and properties of Copaifera multijuga hayne and Baccharis dracunculifolia dc
Authors: De los Santos Bruna Pinto , Kanis Luiz Alberto , Pereira Jefferson Ricardo
Published: March 2017

The aim of this study was to do a literature review on herbal medicines used in dentistry. For that purpose, an electronic search of papers in Portuguese, Spanish, and English was performed in the following databases: PubMed, MEDLINE, SciELO, Science Direct, LILACS, and BBO, supplemented by hand search in books, theses, and journals. For the search, the following keywords were used: phytotherapy, Copaifera, and Baccharis dracunculifolia. Medicinal plants have been used since ancient times and some of them such as the Copaifera multijuga Hayne and Baccharis dracunculifolia DC have shown medicinal properties. Different ways to obtain extracts from those plants have been described, as well as their many important properties, such as antimicrobial, anti-inflammatory, and antiseptic effects. However, studies on their medicinal properties are still scarce, which indicates the need for further studies to unravel their effects and possible side effects, as well as implications of improper use of these plants.
Salivary reservoir designs for patients with xerostomia: a review
Authors: Bhushan Prem , Aras Menas A , Chitre Vidya , Coutinho Ivy , Nagarsekhar Aradhana , Mysore Ashwin
Published: March 2017

Aim: The present paper aims to review the literature available on various approaches to salivary reservoir designs, the functional aspects, cleansibility, type of attachments used, and different techniques used for the fabrication of salivary reservoirs in patients suffering from xerostomia.Material and Methods: A search in the National Library of Medicine’s Pub Med database, Google search and Science Direct was performed to include all case reports and reviews on prosthodontic rehabilitation of dentulous/partially edentulous/edentulous patient with xerostomia.Results: Out of the 35 articles found in the database search, 18 articles were included based on the designs they adopted for fabrication of salivary reservoirs.Conclusions: The various designs available in literature enable an operator to choose the most suitable reservoir design based on specific patient requirements. Innovations in reservoir design promise a more customized prosthesis for every patient. Further research and innovation will enable increasingly efficient salivary substitute delivery systems for the xerostomic patient.
Evaluation of effects of porcelain firing on the marginal fit changes of porcelain–fused-to -metal crown fabricated utilizing two different margin designs and two commercially available base metal alloys
Authors: Handal Guruprasad P. , Pathare Priyanka , Sonawane Yogesh , Marathe Ashlesha , Shinde Gaurav
Published: March 2017

Aim: To find the marginal fit of the porcelain fused to metal crowns by two different margin designs (shoulder and chamfer) and two commercially available base metal alloys.Material and Methods: Tooth preparation of first central incisor for porcelain-fused-to-metal crown with shoulder margin and second incisor for porcelain-fused-to-metal crown with chamfer margin was done. Wax pattern of the same was prepared. Impression of both prepared ivorine incisors was made by light body impression material and poured with pattern resin. Both the patterns were invested and casted with cobalt chromium alloy for making master dies. Two wax patterns of unprepared central incisors were fabricated, one with shoulder margin and another with chamfer margin. These patterns were then cut back to the size of the coping. Four rings were invested. In each ring ten patterns, five with shoulder margin and five with deep chamfer margin were sprued together to ensure that each group would pass through the same investing and casting procedure, followed by ceramic firing and measurement.Results: Marginal fit change or marginal discrepancy (before and after firing) between the groups was highly significant.Conclusions: Veneered crowns exhibited highly significant marginal distortion than non- veneered copings after porcelain firing. Shoulder margin is better in minimizing marginal discrepancy compared to deep chamfer margin. Marginal discrepancy is less when cerabond base metal alloy is used with shoulder margin as compared to commend base metal alloy used for shoulder margin.
Microbiological analysis of absorbent paper points employed by undergraduate students from a dental school in south of Brazil
Authors: Da Silva Paula Barcellos , Só Gabriel Barcelos , Só Bruna Barcelos , Lang Pauline Mastella , Montagner Francisco , Pereira Jefferson Ricardo , De Figueiredo José Antônio Poli , Só Marcus Vinícius Reis
Published: March 2017

Aim: The aim of this study was identify contamination on absorbent paper points used by students of Dental Clinic III of the Faculty of Dentistry of Federal University of Rio Grande do Sul in the semester 2015/1, in order to warn students and professionals of the area on the importance to sterilize these materials.Material and Methods: In a clinical environment, 180 absorbent paper points we collected (80 of them from the first series and 80 from the second one), from 40 students. After the collection, each one was singly immersed in a microtube containing 1.5 ml of the BHI (Brain Heart Infusion) culture. Positive control was composed by one paper point contaminated by saliva, and negative control was composed by a closed microtube, only with BHI. The microtubes were incubated at 37ºC in bacteriological incubator during 14 days. The microtubes that presented turbidity were considered positive, and those which did not present turbidity were considered negative.Results: The results were analyzed by the Fisher Exact Test, which demonstrated that paper points from the second series presented higher agreement contamination between the paper points collected from each box, when compared to the analyzed boxes from the first series (p=0.03). All the samples observed presented growth of Bacillus spp in the microorganism identification. Conclusions: It is possible conclude that absorbing paper points, when exposed to clinical environment suffer contamination, and the autoclave sterilization is necessary before the use, regardless the commercial brand, in order to ensure the aseptic chain maintenance.
Editorial
Authors: Santos Gildenir Carolino , Passos Rosemary
Published: March 2017

Estamos novamente em cena. Trazendo à vocês leitores, novos artigos, novas experiências que compõe o número 2 do volume 2 da nossa Revista On-line da Biblioteca Prof. Joel Martins. Notoriamente, estamos crescendo em direção a pesquisa na área educacional, com um pouco de ousadia na intenção de disponibilizar nosso conhecimento e dar contribuições que irão auxiliar pesquisas futuras. A Internet tem sido um grande instrumento de comunicação e transmissão de informações, e isso tem possibilitado o contato dos grupos de pesquisa da Faculdade de Educação, que participam de nossa Revista, com os seus pares...
O ambiente escolar cooperativo e a construção do juízo moral infantil: sete anos de estudo longitudinal
Authors: Araújo Ulisses F.
Published: March 2017

Neste artigo discutirei as relações entre o ambiente escolar democrático e sua influência no desenvolvimento da cooperação e do juízo moral infantil. Para isso apresentarei os resultados de experiências educacionais e de investigações que venho conduzindo nos últimos 7 anos apontando que crianças que desenvolvem a capacidade de cooperação com seus pares e vivenciam ambientes escolares democráticos tendem a desenvolver um juízo moral mais autônomo.
O Mercosul e a Universidade: referenciais para a pesquisa
Authors: Demange Nilson Joseph
Published: March 2017

Os acordos diplomáticos e negociações dos governos latino-americanos com instituições e corporações internacionais (UNESCO, BIRD) têm apresentado algumas tendências importantes em relação à educação e pesquisa universitária. Este artigo examina três tendências características dessas relações com alguns dos principais paradigmas do conhecimento e ação universitária no contexto histórico latino-americano e do Mercosul. Focaliza principalmente os problemas decorrentes da inserção histórico-cultural da Universidade no sistema de mercado e nas políticas educacionais, nacionais e internacionais que a envolvem.
Avaliação da aprendizagem no curso de física da Unicamp
Authors: Augusto Cacilda Encarnação
Published: March 2017

O presente texto é resultado de um estudo que teve como objetivo identificar, caracterizar e analisar as práticas de avaliação desenvolvidas no Curso de Física da UNICAMP, tendo como óticas privilegiadas a do aluno e do professor. Os dados revelaram que os alunos estão insatisfeitos com o critério de avaliação utilizado, pelos professores, apontando como um dos principais problemas a prova como praticamente a única forma de avaliá-los e a falta de comunicação entre eles e os docentes.A média sete, adotada no curso de Física, que é criticada, pelos alunos é vista como positiva pela maioria dos professores, por acreditarem que ela pressiona os alunos a estudarem. Para os alunos a avaliação, como é feita no Instituto não promove a aprendizagem, porque acaba tendo como objetivo apenas a verificação do que o aluno assimilou do conteúdo e a nota. A concepção de avaliação que marca as falas, de praticamente todos os informantes, é a da avaliação como um instrumento importante para verificar o aprendizado, e não para diagnosticar dificuldades e tentar encontrar formas de superá-las. Percebe-se, portanto, a necessidade de se repensar a avaliação da aprendizagem em seu verdadeiro significado, que é contribuir para que realmente a aprendizagem se concretize.
As práticas de leitura e escrita vivenciadas pelas crianças: a escola, a família e outros personagens
Authors: Silva Leila Cristina Borges da
Published: March 2017

O presente trabalho teve como objetivo conhecer os diferentes personagens que comigo mediavam o acesso das crianças em relação às práticas de leitura e escrita. A pesquisa foi realizada na sala de aula, onde atuei como professora, compartilhando com Vygostky (1984) que, para se entender algo (neste caso, as práticas de leitura e escrita) é necessário estudá-lo nas dinâmicas das relações, mergulhada no processo, ou ainda, no movimento. Tendo como referencial teórico os estudos da história cultural (CHARTIER: 1996; HÉBRARD; 1996; FRAISSE: 1997), debrucei-me sobre os modelos históricos que circunscrevem as práticas de leitura e escrita, reconhecendo os vestígios acerca destas apropriações, pelos sujeitos dentro e fora da escola. Através dos relatos das crianças e da família, fui apurando meu olhar para os mediadores envolvidos neste processo: a oralidade, a materialidade do livro e a imagem. No percurso deste trabalho, observei ainda que as crianças respondem ao modelo escolar, burlando-o, apropriando-se das práticas de leitura e escrita de modo singular e compartilhado ao mesmo tempo.
A construção de um programa de letramento informacional e arte educação
Authors: Zinn Alexandra César , Gasque Kelley Cristine Gonçalves Dias
Published: March 2017

Analisa a interligação dos conteúdos de letramento informacional aos conteúdos de Arte no ensino médio por meio de pesquisa descritiva realizada com arte-educadores da secretaria de educação do Distrito Federal, regional de ensino do Recanto das Emas. Os docentes pesquisados participaram de curso básico de formação em letramento informacional com intuito de subsidiar a etapa posterior que consistiu em responderem rodadas de questionários intercaladas por feedbacks. O estudo utilizou o método Delphi, os instrumentos de pesquisa foram questionários estruturados com perguntas fechadas e abertas. Os resultados revelaram a viabilidade de aplicação da proposta, apesar dos desafios a serem superados, relacionados principalmente à incipiência na formação em letramento informacional dos docentes em geral, à deficitária infraestrutura das escolas e à organização curricular vigente.
Incidence of Breast, Prostate, Testicular and Thyroid Cancer in Italian Contaminated Sites with Presence of Substances with Endocrine Disrupting Properties
Authors: Benedetti Marta , Zona Amerigo , Beccaloni Eleonora , Carere Mario , Comba Pietro
Published: March 2017

The aim of the present study was to investigate the incidence of breast (females), prostate, testicular and thyroid cancer in the Italian National Priority Contaminated Sites (NPCSs), served by cancer registries, where the presence of endocrine disruptors (EDs), reported to be linked to these tumors, was documented. Evidence of carcinogenicity of EDs present in NPCs was assessed based on evaluation by international scientific institutions/committees. Standardized Incidence Ratios (SIRs) were computed for each NPCS and cancer site with reference to the time window 1996-2005. Excess incidence of one or more cancer site at study was found in twelve out of fourteen NPCSs. Significantly increased SIRs were found for breast cancer in eight NPCSs, for prostate cancer in six, for thyroid cancer (both gender) in four and for testicular cancer in two. Non significantly increased SIRs were found in five NPCSs for testicular cancer and in two for thyroid cancer (males). Even if increased incidence of one or more cancer sites at study were found in several NPCSs, the ecological study design and the multifactorial etiology of the considered tumors do not allow reaching conclusions in terms of causal links with environmental contamination. In light of the observation of some excesses in SIRs, continuing epidemiological surveillance is warranted.
Limitations and Constraints of Eddy-Current Loss Models for IPM Motors with Fractional-Slot Concentrated Windings
Authors: Zhang Hui , Wallmark Oskar
Published: March 2017

This paper analyzes and compares models for predicting average magnet losses in interior permanent-magnet motors with fractional-slot concentrated windings due to harmonics in the armature reaction (assuming sinusoidal phase currents). Particularly, loss models adopting different formulations and solutions to the Helmholtz equation to solve for the eddy currents are compared to a simpler model relying on an assumed eddy-current distribution. Boundaries in terms of magnet dimensions and angular frequency are identified (numerically and using an identified approximate analytical expression) to aid the machine designer whether the more simple loss model is applicable or not. The assumption of a uniform flux-density variation (used in the loss models) is also investigated for the case of V-shaped and straight interior permanent magnets. Finally, predicted volumetric loss densities are exemplified for combinations of slot and pole numbers common in automotive applications.
Analysis of Optimal Sensor Positions for Activity Classification and Application on a Different Data Collection Scenario
Authors: Pannurat Natthapon , Thiemjarus Surapa , Nantajeewarawat Ekawit , Anantavraslip Isara
Published: March 2017

This paper focuses on optimal sensor positioning for monitoring activities of daily living and investigates different combinations of features and models on different sensor positions, i.e., the side of the waist, front of the waist, chest, thigh, head, upper arm, wrist, and ankle. Sixteen features are extracted and the feature importance is measured by using the Relief-F feature selection algorithm. Eight classification algorithms are evaluated on a dataset collected from young subjects and that collected from elderly subjects, with two different experimental settings. To deal with different sampling rates, signals with a high data rate are down-sampled and a transformation matrix is used for aligning signals to the same coordinate system. The thigh, chest, side of the waist, and front of the waist are the best four sensor positions for the first dataset (young subjects), with average accuracy values being greater than 95%. The best model obtained from the first dataset for the side of the waist is validated on the second dataset (elderly subjects). The most appropriate number of features for each sensor position is reported. The results provide a reference for building activity recognition models for different sensor positions, as well as for data acquired from different hardware platforms and subject groups.
Peptidylarginine Deiminases as Mediators of Microvesicular Release - Novel Therapeutic Interventions
Authors: Lange Sigrun , Kholia Sharad , Kosgodage Uchini , Hristova Mariya , Hardy John , Inal Jameel M
Published: March 2017

Extracellular vesicle (EV) release, which occurs in most eukaryotic cells, has recently been associated with peptidylarginine deiminase (PAD)-driven protein deimination. Evidence points to the involvement of deiminated cytoskeletal proteins and changes in histone deimination. Both PADs and EVs are associated with various pathologies including cancers, autoimmune and neurodegenerative diseases. The elevated PAD expression observed in cancers may contribute to increase in EV shedding observed from cancer cells, contributing to cancer progression. Similarly, elevated PAD expression observed in neurodegenerative diseases may cause increased EV shedding and spread of neurodegenerative EV cargo, contributing to disease progression and pathologies. Pharmacological inhibition of PAD-mediated deimination using pan-PAD inhibitor Cl-amidine, reduced cellular EV release in prostate cancer cells, rendering them significantly more susceptible to chemotherapeutic drugs. Studies on models of central nervous system damage have demonstrated critical functional roles for PADs and neuroprotective effects using PAD inhibitors in vivo, while human neurodegenerative iPSC in vitro models showed evidence of increased protein deimination. Besides using refined PAD inhibitors to selectively manipulate EV biogenesis for novel combination therapies in cancer treatment, we also speculate how EV biogenesis could be targeted via the newly identified PAD-pathway to ameliorate neurodegenerative disease progression.
Sunburn Protection by Sunscreen Sprays at Beach
Authors: Ou-Yang Hao , Rzendzian Richard Bradley
Published: March 2017

Background: The efficacy of sunscreen is evaluated by SPF values, which are quantitatively determined in laboratories on the backs of human subjects according to a standardized procedure. However, SPF cannot be directly translated to sunburn protection under real-life situations because actual efficacy depends on various factors related to human behaviors and environmental conditions. This study clinically evaluated the efficacy of two sunscreen sprays (SPF 30 and SPF 70) under natural sunlight exposure on healthy subjects at the beach. Methods: Twenty subjects were divided into two cells for the two sunscreen sprays (SPF 70 and SPF 30) in a single-center, actual usage test. The primary endpoint of the study was sunburn protection on the dorsal arms and the secondary endpoint was protection on the face and neck. Subjects stayed at the beach for 4 h after application of the sunscreens with normal beach activities. Subjects’ behavior at the beach, the amounts of sunscreen applied and reapplied, and environmental conditions were all recorded. Results: There was no significant sunburn for a majority of the subjects in either cell. However, neither sunscreen completely blocked the sunburn, especially for the face/neck area. We found that the SPF 70 sunscreen was more effective than the SPF 30 sunscreen. Conclusion: Modern sunscreen sprays, applied liberally, are effective in providing sunburn protection for the body in a beach setting.
A Combined Entropy/Phase-Field Approach to Gravity
Authors: Schmitz Georg J.
Published: March 2017

Terms related to gradients of scalar fields are introduced as scalar products into the formulation of entropy. A Lagrange density is then formulated by adding constraints based on known conservation laws. Applying the Lagrange formalism to the resulting Lagrange density leads to the Poisson equation of gravitation and also includes terms being related to curvature of space. The formalism further leads to terms possibly explaining nonlinear extensions known from modified Newtonian dynamics approaches. The article concludes with a short discussion of the presented methodology and provides an outlook on other phenomena, which might be tackled using this new approach.
Microwave-Assisted Catalytic Synthesis of Bio-Based Copolymers from Waste Cooking Oil
Authors: Shahi Mahrzadi Noureen , Arshad Muhammad , Ullah Aman
Published: March 2017

Solvent free copolymerization of epoxides derived from fatty acid esters of waste cooking oil with phthalic anhydride using (salen)CrIII Cl as catalyst and n-Bu4NCl/DMAP as co-catalyst was carried out for the first time under microwave irradiation, where reaction time was reduced from number of hours to minutes. The polyesters were obtained with molecular weight (Mw = 3084-6740 g/mol) and dispersity values (D = 1.18-1.92), when (salen)CrIII Cl/n-Bu4NCl was used as catalysts. While in case of DMAP as a co-catalyst, polyesters with improved molecular weight (Mw = 5537-6925 g/mol) and narrow dispersity values (D = 1.07-1.28) were obtained even at reduced concentrations of (salen)CrIII Cl and DMAP. The obtained products were characterized and evaluated by attenuated total reflection-fourier transform infrared spectroscopy (ATR-FTIR), proton nuclear magnetic resonance (1H-NMR) spectroscopy, gel permeation chromatography (GPC) and thermogravimetric analysis (TGA) Techniques.
Applications of Viscosity-Building Friction Reducers as Fracturing Fluids
Authors: Van Domelen Mark , Cutrer Wayne , Collins Steve , Ruegamer Michael
Published: March 2017

The use of viscosity-building friction reducers (VFR) as fracturing fluids is increasing in the industry today (Motiee et al. 2016; Sanders, et al. 2016; Al-Muntasheri, et al. 2014, Holtsclaw, et al. 2010). In addition to providing pipe friction reduction during fracturing treatments, these systems develop elevated viscosity over traditional slickwater fluids to provide several advantages described herein. Additionally, using advances made in polymer chemistry such as fit for purpose monomer structures and effective breakers, VFR fluids exhibit high regain conductivities compared to linear and crosslinked gels and are being used as a direct replacement for these conventional guar-based systems.

The polyacrylamide-based VFR system described in this paper has been used on over 10,000 stages in multiple basins since 2014. Some of the potential advantages VFR fluids offer include lower cost, reduced water requirements compared to conventional slickwater treatments, fewer chemicals and equipment on location, on-the-fly design change flexibility, and high fracture conductivities. This paper will present three case histories from projects performed recently to demonstrate these advantages.
A Rock-on-a-Chip Approach to Study Fluid Invasion and Flowback in Liquids-Rich Shale Formations
Authors: He Kai , Xu Liang , Kenzhekhanov Shaken , Yin Xiaolong , Neeves Keith B.
Published: March 2017

Understanding the dynamic process of fluid invasion and flowback has significant technological implications in developing shale plays. One of the physical models used to study this process is coreflooding, which mimics the process of fracturing fluid invasion, flowback, and hydrocarbon recovery from shale formations. However, coreflooding is time consuming, expensive, and unable to provide insights to the underlying physics at the pore scale level in most instances.

Rock-on-a Chip (ROC), based on microfluidic technology, is an emerging approach that provides a new method to study fracturing fluid invasion and flowback affected by the petrophysical properties using direct visualization and measurement. In this study, the porous matrix, representing shale formations, and single large channel, representing hydraulic fractures or natural fractures, were defined in an oil-wet microfluidic chip; the drainage-imbibition cycles that are analogous to fracturing fluid invasion and subsequent flowback were measured by optical microscopy. Specifically, the effect of interfacial tension and fracture patterns ("half" fracture and "S" fracture) on the fluid invasion factor and flowback efficiency was examined.

The results show that the invasion factor and flowback efficiency correlated well with the capillary pressure of fracturing fluids. In addition, model fractures have a major effect on the flowback. In particular, the invasion factor and flowback efficiency of the water-based fracturing fluids were significantly impaired in the "S" fracture pattern, as compared to homogeneous and half fracture patterns. Notably, by improving fluid mobility between the porous matrix and fractures, the addition of a surfactant to the fracturing fluids significantly enhanced the fluid invasion and flowback in all of the fracture patterns. The results demonstrate that the ROC model proposed in this work can be used to study the flowback process affected by properties such as wettability, permeability, initial water saturation, and reservoir pressure. Consequently, it has potential for guiding water management and chemical treatment in hydraulic fracturing.
Development of a Cement Repository to Improve the Understanding of Well Integrity Behavior with Time
Authors: Ichim Adonis , Teodoriu Catalin
Published: March 2017

Well integrity is becoming a subject of increasing interest with current developments in technical, political and social aspects echoing over the oil and gas industry. Both onshore and offshore activities are strongly constrained by the operator's ability to provide solid facts regarding their well integrity over the life of the well. As a result of new technologies, the life of the well has increased, generating new questions about novel integrity tiers.

This paper presents the new cement repository that is currently under development at OU. The concept is to create a physical storage unit as well as a cement database to hold cement samples for a minimum of 5 years after well spud. All information will be stocked on a custom-made database, whereas the cement samples will be kept in a special "cement bank" - holding the cement samples under constant in-situ pressure. The cement samples can be taken during normal cementation jobs at the well site, transported using a "for purpose" developed mobile autoclave system and stored in the special units that will be built at OU. Additional samples (reference units) will be manufactured at the OU Well Integrity Laboratory.

The paper will demonstrate that in case of any wellbore integrity issues, wellbore owners will have immediate access to accurate cement properties that can be used to perform numerical studies on the wellbore cement situation.