bluuebunny/crossref_metadata_2025 huggingface dataset:
‘Where no man has gone before!’ – Exploring new knowledge in design-based research projects: A treatise on phenomenology in design studies
Authors: Sloane Peter F. E.
Published: July 2020

Design-based research (DBR) is a programme where researchers co-operate with practitioners to work out new solutions. In DBR researchers interfere in daily life and participate in practitioners’ working processes. One open question is: What kind of knowledge can be generated in these projects? My starting point here is a DBR project in vocational education and training in Germany which is used for an investigation of the epistemological background of this kind of research enterprise. The characteristics of DBR are reflected on the basis of phenomenological and hermeneutical approaches. The basic assumptions of these concepts are introduced and applied to the DBR approach to show how DBR generally works and how, specially, features of DBR like participation in daily life, co-operation with practitioners, gathering knowledge in the field a. s. o. can be handled.

The line of argumentation in this contribution is a radical switch between practical questions in daily work in DBR on one hand and theoretical re-assurance on the other hand. For researchers, DBR is an enterprise in a new world. The analytical paradigm does not prepare the voyagers for this journey. Therefore the non-analytic continental tradition of philosophy has to be re-discovered.
Playing with rusty nails: ‘Conceptual tinkering’ for ‘next’ practice
Authors: Leonard Simon N. , Belling Sarah , Morris Alexandra , Reynolds Eva
Published: July 2020

An important issue for the Educational Design Research (EDeR) community to continue to deal with is the scalable and sustainable implementation of its methods, findings and designs beyond the bounds of specific projects. Those engaged in EDeR specifically seek out concurrent problems of theory and problems of practice, but this should not be seen as sufficient for ensuring their work has impact beyond their current project. Just as with other forms of research, EDeR practitioners must still reach out to and connect with educational institutions and teachers who are dealing with many competing demands.

This position paper offers a largely theoretical contribution to the discussion of the problem of implementation. It will introduce the concept of conceptual tinkering as an approach to engaging teachers in the skillsets and, more importantly, the mindsets of EDeR as an approach to educational improvement. Sketches and prototypes of tools to enable conceptual tinkering will be discussed.
Design-based research in the context of transitioning to VET: Developing interventions through research-practice collaboration
Authors: Brahm Taiga
Published: July 2020

The transition from school to vocational education and training (VET) is becoming more difficult for an increasing number of adolescents. Despite the growing significance of this phase, the- re is hardly any research regarding interventions targeting stu- dents’ resilience, especially with regard to their capacity to join the labour market. This paper aims at describing the research process of developing three different interventions in coopera- tion with a number of practitioners who teach in so-called in- terim solutions. The goal of the paper is, thus, to illustrate how design-based research (DBR) can be conducted in the context of vocational education. The comprehensive three-cycle develop- ment of three interventions with the aim of fostering students’ conflict management competence, attribution and self-efficacy will be used as a single case study to illustrate a complex DBR project. Each step in the design-research process will be reflec- ted, resulting in a discussion of the possibilities and obstacles of combining formative and summative evaluation in the DBR process.
Video analysis in Design-Based Research – Findings of a project on self-organised learning at a vocational school
Authors: Gössling Bernd , Daniel Desirée
Published: July 2020

The use of video analysis in Design-Based Research (DBR) seems to be promising, because the quality of video data matches the reality of educational fields. Educational fields are multidimensional and complex. And more than other types of data, video may capture, for example, the simultaneity of verbal and non-verbal interactions. This seems to be valuable in the quest for new insights and better designs of educational interventions. However, to date there has been limited use of video data in researching their design. This paper aims at reflecting how the benefits of video-based analysis may be utilised in DBR. Experiences with the collection and analysis of video data in a project to design self-organised learning (SOL) at a vocational school in Germany will be used as a case study to illustrate the type of findings that may feed into the DBR process. In this case, the project school had already introduced a sophisticated SOL model but was experiencing various implementation difficulties. Resolving issues like this requires insights into how exactly a concept is realised and what happens in the field. Therefore, video data on classroom interactions was gathered and sub-sequently analysed using the documentary method. This led to the reconstruction of two different types of orientation that were guiding the students when they dealt with their self-organised learning environment. In a subversive orientation, students playfully infiltrate the formal learning space with peer activities. In a confirming orientation, students stick to both, the (informal) rules of the (formal) learning arrangement and of the peer environment, thus expressing respect for the boundary between these two worlds. These findings have been used to redesign the SOL intervention.
Trust in Civil Services as an Institution
Authors: Bigley Joel , Weniger Marc
Published: July 2020

This paper contemplates the state of drift in the public’s feeling and trust in the civil services that have authority over them using the World Values Survey data from 1981 to 2013. This study will show that the trust in the civil service as an institution has changed over time and over geographic region. Citizens trust civil servants when the feel they get a good return on the payment that they invest in government through the tax structure and compliance. While contributions per person vary, the outcomes can still be measured and experienced. News of corruption and hypocrisy creates a perception of inferior performance. The purpose of the civil service is to preserve the quality of life of citizens. This is carried out through processes that achieve outcomes from administrative agencies that help citizens to follow rules, cooperate in the provision of the collective good, and respond appropriately in emergencies. By leveraging the World Values Survey data, the study shows trends in trust in civil services across generations and geographies.
Redeeming the Emancipatory Potential of Novelty Caught in Cunning Complexifications
Authors: Jaros Milan
Published: July 2020

Competence in knowing and being is about making sense of change, of novelty’s place in the social, its functionality as well as one’s relation to it. The challenge is in acquiring, implementing, and resourcing methods of selecting and connecting things fit for the human condition of today. The main source of development has always been the urge to seek new forms of natural and spiritual order, and creative recasting of the inherited order into a new one. Until recently, such deeds were believed to be acts of Divine revelation. Advances of modernity turned the human action space into contingent networks of man-made quasi-objects grounded in disparate systems of thought and measurement that pattern the social. What will legitimate capacity for recognition and directional taxonomy of innovations? How will the resulting norms affect narratability of life? It is an outstanding intellectual and leadership challenge to develop practices leading to directional thought and fostering an elbow room for playful initiatives. Recent initiatives designed to bring knowing and being up to the demands of the digital age show that no amount of top down instruction, good will or revolutionary fervour, are a substitute for bottom up acquisition and ownership of knowledge and work in which the ultimate measure of value is the degree of personal independence and social emancipation. With it comes competent citizenship and social responsibility any socio-economic system with democratic ambitions cannot do without.
Computed Tomography for the Assessment of the Potential Risk After Implant Placement in Fresh Extraction Sites in the Posterior Mandible
Authors: Haj Yahya Bahaa , Chaushu Gavriel , Hamzani Yafit
Published: July 2020

Immediate implant placement (IIP) is considered a reliable procedure, with survival rates of 94.9%–98.4%. Nevertheless, in the posterior mandible, it poses a high risk of damage to anatomic structures. The aim of this study was to determine the risk of anatomic structures injury associated with IIP in the posterior mandible based on apical primary stability, respecting a safe distance from the inferior alveolar nerve and lingual plate, and to evaluate the influence of different factors on those risks. Pre-extraction cone beam computed tomography scans of 100 patients were retrospectively analyzed. Measurements were taken from tooth apices to lingual plate and to mandibular canal. Values of <4 mm of the former and <6 mm of the latter were categorized as considerable risk. Values of <2 mm at both measurements were considered high risk. Two-sided P < .05 was considered statistically significant. Mean root-to-alveolar canal distance was 7.6 ± 2.7 mm in the first molar, 6.5 ± 3mm in the second premolar, and 5.4 ± 3 mm in the second molar (P < .005). The mean distance to the outer lingual cortex was 3.9 ± 2.1 mm in the first molar and 3.2 ± 0.1 mm in the second molar. Thus, second molars were at higher risk of inferior alveolar nerve injury and lingual plate perforation during IIP. Background factors associated with higher IIP risk were female sex and age < 40 years. In the mandible, the anatomic risk posed by IIP is greatest for second molars and lowest for first molars. Several background factors affect the distances between root apices and the mandibular canal.
Natural Bone Healing In Compromised Sockets After Tooth Extraction: Digital Measurement Methods With Cone-Beam Computed Tomography
Authors: An Xueyin , Oh Ji-Hyeon , Jeong Seung-Mi , Choi Byung-Ho
Published: July 2020

This study aimed to evaluate bone regeneration within infected extraction sockets with bone defects using cone-beam computed tomography (CBCT) at a 1-year follow-up after implant placement in a prosthetically driven implant position. Forty-eight patients requiring premolar or molar tooth extraction due to bone defects caused by periodontal diseases were included. Vertical and horizontal bone volumes were assessed by overlapping the CBCT scan images with the full digital process. At 1-year post-extraction, a prosthetically-driven implant was planned using virtual implant planning software. At 1 year after extraction, CBCT revealed significant horizontal and vertical bone gains; an overall mean buccolingual bone width gain of 5.46 ± 2.87 mm, and an overall mean vertical bone gain of 0.27 ± 1.28 mm for the lingual bone plate level and 3.50 ± 1.81 mm for the buccal bone plate level were observed. Except for 4 (out of 48) sites, implants were virtually positioned in the center of the edentulous spaces. In summary, despite the dimensional changes after tooth extraction in compromised posterior sockets, there was sufficient bone for placing an implant using the prosthetically driven approach.
Full Digital Workflow for Anterior Immediate Implants Using Custom Abutments
Authors: Pinhata-Baptista Otavio Henrique , Kim Jun Ho , Choi Isabela Goulart Gil , Tateno Ricardo Yudi , Costa Claudio , Cortes Arthur Rodriguez Gonzalez
Published: July 2020

The full digital workflow involves the combination of intraoral and cone beam computerized tomography scans. In the present case report, a second intraoral scan is performed after soft tissue management facilitated by the use of a 3-dimensional-printed interim implant restoration. The new STL file resulting from the second intraoral scan can be associated with the previous STL from the initial intraoral scan. The custom abutment was also digitally designed as an STL file, and no implant scan bodies were required for intraoral scanning.
The Relationship Between Serum Level of Vitamin D3 and Osseointegration Around the Dental Implant
Authors: Pourshahidi Sara , Yousefian Marzieh
Published: July 2020

At present, dental implants are used more than before, and their high success rate is attributed to sufficient osseointegration, which depends on prosthetic-, implant-, and patient-related factors. The quality and quantity of bone and the host response are the main patient-related factors. Vitamin D3 affects bone metabolism by stimulating both osteoclasts and osteoblasts. This study aimed to review the human studies on the efficacy of vitamin D3 for dental implant osseointegration. Search of the literature yielded only 4 studies on human models, of which 2 showed the optimal efficacy of vitamin D3 for dental implant osseointegration, whereas the remaining 2 did not report any positive effect. However, this finding may be related to the small sample size of the vitamin D3–deficient group, which can compromise statistical analyses. In conclusion, vitamin D3 seems to be effective for dental implant osseointegration, although further research is required on human models.
A Participatory Action Research on the Parent Self-Help Group for Transition and Preparation to Adulthood of Students with Developmental Disabilities
Authors:   The Korean Society of Special Education, Choi Minsik , Shin Hyunki
Published: July 2020

This study was conducted to explore changes in parents' experiences and empowerment perspectives participating in school-based parent self-help group and to suggest their applicability at special education sites. In order to achieve these research goals, participatory action research methods were used to emphasize practical participation, and 17 parents who have children with developmental disabilities in high school senior and vocational training courses participated in the parents self-help group. The research procedure was conducted for a total of two cycles according to the spiral self-reflection study model (planning→execution→observation→reflection) after diagnosing of the problem and setting the scope of the subject. In the course of the participatory action research, the daily notes, observations, interviews and document data were collected and the data was analyzed through a classification analysis method based on the perspective of interaction theory and the continuous comparison method. The results are as follows: First, those who participated in the parents' self-help group experienced the parents' role, career awareness, practical information collection, detailed career plans and future design for preparing for the transition to adulthood. Second, they experienced personal empowerment in improving self-efficiency and self-reflection, collective empowerment in experiencing psychological treatment, awareness of the protection of the rights of the disabled, and growing community with the school. Third, the perspective of parents and teachers who led the parents' self-help group during the transition period at the special education site is that they should understand the differences in parents' diverse perceptions of self-help meetings, and plan concrete measures for cooperation and practice among school members, including voluntary participation by parents. The research results demonstrate that, parents' self-help groups provide opportunities for parents of children with developmental disabilities to prepare their children's adult careers through self-help values and mutual cooperation, and to grow with other individual parents and parents’ groups.
Strengthening mechanism and microstructure of fibre-reinforced coral mortar and concrete
Authors: Wang Lei , Shen Ni , Yu Dapeng , Fu Feng , Qian Kai
Published: July 2020

The effects of different dosages and lengths of carbon fibre (CF), sisal fibre (SF) and polypropylene fibre (PPF) on the microstructure and mechanical properties of mortar and concrete made with coral sand were studied through mechanical tests and scanning electron microscopy. In total, 37 groups of coral mortar and concrete specimens with the addition of CF, SF and PPF in four different dosages and three different lengths were tested. Based on mechanical tests and microstructure analysis, the strengthening effect and strengthening mechanism of fibre in coral mortar and concrete, and the mechanical properties of coral mortar and concrete were investigated. It was found that – compared with normal mortar and concrete – the workability of the coral mortar and concrete was poor due to its light weight, high porosity and rough surface. The strengthening effect of the fibres was reduced due to difficulty in dispersing the fibres evenly in the mortar and concrete. The addition of fibres significantly enhanced the flexural strength and toughness of the coral mortar and concrete, but an excessively high fibre dosage and the use of extra-long fibres significantly reduced its working performance due to the fibre curling and clustering, especially for CF. The optimal length and content of the different fibres were also investigated. The addition of SF was found to have the best strengthening effect.
Kisgyermekkori neuropedagógia - A kisgyermekkori agyfejlődés támogatása az óvodai nevelésben
Authors: Borbás Mónika Lívia
Published: July 2020

In agreement with the spirit of the era teachers and experts with a vocation need to make an attempt to develop and continually improve their existing expertise in order to increase the efficiency of education and care. It is a well-known fact that preschool years mean the most sensitive period to establish and deepen the competences supporting life-long learning. With regard to the development and maturation of the nervous system the supporting environment, the motivating educational activities create favourable conditions for the learning process of small children. All this helps to build the neural links, to intensify the nervous paths. The main direction of the micro research presented in the study was appointed by important questions to be resolved, that is what level of neuropedagogical expertise kindergarten teachers possess and how and to what extent they use their knowledge in this field to support early childhood brain development.
A meserajz személyiség megismerési módszer alkalmazási lehetősége az óvodapedagógiai gyakorlatban
Authors: Unger Vivien
Published: July 2020

The aim of this study is to determine the application of the fairy tale drawing method to kindergarten pedagogical practice. First, the research emphasizes the special role of fairy tales, listening to stories in early childhood and their important part in personal development. The analysis from the point of view of pedagogical psychology, on the one hand, summarises basic theoretical knowledge and, on the other hand, presents an independent empirical research. Based on the systematic results, it is possible to determine the methodological recommendations that can ensure the efficiency of the implementation of the fairy tale personality cognition process in the field of raising children.
Empathische Erfassung, Reflexion und interner Dialog in der Sozialen Arbeit
Authors: Haász Sándor
Published: July 2020

Soziale Arbeit als Beruf und Praxis ist ein wesentlicher und bestimmender Bereich der menschlichen Problemlösung. In Bezug auf ihre Methoden und ihr allgemeines Wissen ist sie ein hochkomplexer, humanspezifischer Hilfsberuf im dreifachen Kontext der Problem-Ressourcen-Autonomie Problematik, dessen Legitimität sich aus den interpersonalen Interaktionen ergibt Die gesammelte Übung und Erfahrung sind unverzichtbare Partien des Wissensorganums, die den Anwendern Reife und ständige Entwicklungsfähigkeit verleiht. Die berufliche Persönlichkeit, ihre inhaltliche Kohärenz steht im Mittelpunkt der Entwicklung, die auch das wichtigste Instrument zur Unterstützung ist. Reflexion, sowie Selbst- und Fremdreflexion ist aber eine konkrete Annäherung im Kontext der Sozialen Arbeit. Dies hilft dem Anwender, ein selbstbewusstes und reiches Persönlichkeitserlebnis zu erreichen.
Evaluation of Ground-Motion Models for USGS Seismic Hazard Models Using Near-Source Instrumental Ground-Motion Recordings of the Ridgecrest, California, Earthquake Sequence
Authors: McNamara Daniel E. , G. Wolin Emily L. , Moschetti Morgan P. , Thompson Eric M. , Powers Peter M. , Shumway Alison M. , Petersen Mark D. , Wilson David C. , Benz Harley M.
Published: July 2020

We evaluated the performance of 12 ground-motion models (GMMs) for earthquakes in the tectonically active shallow crustal region of southern California using instrumental ground-motion observations from the 2019 Ridgecrest, California, earthquake sequence (Mw 4.0–7.1). The sequence was well recorded by the Southern California Seismic Network and rapid response portable aftershock monitoring stations. Ground-motion recordings of this size and proximity are rare, valuable, and independent of GMM development, allowing us to evaluate the predictive powers of GMMs. We first compute total residuals and compare the probability density functions, means, and standard deviations of the observed and predicted ground motions. Next we use the total residuals as inputs to the probabilistic scoring method (log-likelihood [LLH]). The LLH method provides a single score that can be used to weight GMMs in the U.S. Geological Survey (USGS) National Seismic Hazard Model (NSHM) logic trees. We also explore GMM performance for a range of earthquake magnitudes, wave propagation distances, and site characteristics. We find that the Next Generation Attenuation West-2 (NGAW2) active crust GMMs perform well for the 2019 Ridgecrest, California, earthquake sequence and thus validate their use in the 2018 USGS NSHM. However, significant ground-motion residual scatter remains unmodeled by NGAW2 GMMs due to complexities such as local site amplification and source directivity. Results from this study will inform logic-tree weights for updates to the USGS National NSHM. Results from this study support the use of nonergodic GMMs that can account for regional attenuation and site variations to minimize epistemic uncertainty in USGS NSHMs.
Generation and Validation of Broadband Synthetic P Waves in Semistochastic Models of Large Earthquakes
Authors: Goldberg Dara E. , Melgar Diego
Published: July 2020

We present an approach for generating stochastic scenario rupture models and semistochastic broadband seismic waveforms that include validated P waves, an important feature for application to early warning systems testing. There are few observations of large magnitude earthquakes available for development and refinement of early warning procedures; thus, simulated data are a valuable supplement. We demonstrate the advantage of using the Karhunen–Loève expansion method for generating stochastic scenario rupture models, as it allows the user to build in desired spatial qualities, such as a slip inversion, as a mean background slip model. For waveform computation, we employ a deterministic approach at low frequencies (<1  Hz) and a semistochastic approach at high frequencies (>1  Hz). Our approach follows Graves and Pitarka (2010) and extends to model P waves. We present the first validation of semistochastic broadband P waves, comparing our waveforms against observations of the 2014 Mw 8.1 Iquique, Chile, earthquake in the time domain and across frequencies of interest. We then consider the P waves in greater detail, using a set of synthetic waveforms generated for scenario ruptures in the Cascadia subduction zone. We confirm that the time-dependent synthetic P-wave amplitude growth is consistent with previous analyses and demonstrate how the data could be used to simulate earthquake early warning procedures.
Joint Focal Mechanism Inversion Using Downhole and Surface Monitoring at the Decatur, Illinois, CO2 Injection Site
Authors: Langet Nadège , Goertz-Allmann Bettina , Oye Volker , Bauer Robert A. , Williams-Stroud Sherilyn , Dichiarante Anna Maria , Greenberg Sallie E.
Published: July 2020

The three-year CO2 injection period at the Illinois Basin - Decatur Project site (Decatur, Illinois, United States) produced a number of microseismic events distributed in very distinct spatiotemporal clusters with different orientations. Further characterization of the microseismicity encompasses the determination of the event source mechanisms. Initially, the microseismic monitoring network consisted solely of borehole sensors, but has been extended with surface sensors, thereby significantly improving the data coverage over the focal sphere. This article focuses on 23 events from the northernmost microseismic cluster (about 2 km from the injection point) and takes advantage of both, surface and downhole, recordings. The resulting strike-slip east–west-oriented focal planes are all consistent with the east–west orientation of the cluster in map view. The injection-related increase of pore pressure is far below the formation fracture pressure; however, small stress-field changes associated with the pore-pressure increase may reach as far as to the investigated cluster location. Monte Carlo modeling of the slip reactivation potential within this cluster showed that the observed maximum stress-field orientation of N068° is the optimum orientation for fault reactivation of the east–west-oriented cluster. Our results suggest that the east–west orientation of the investigated cluster is the main reason for its activation, even though the cluster is about 2 km away from the low-pressure injection point.
Studi Perbandingan Perilaku Dalam Reaktor Kolom Gelembung Secara Non-Katalitik Dengan Simulasi CFD Terhadap Kadar ME Biodiesel
Authors: Defrian Angga , Zulfakri Zulfakri
Published: July 2020

Abstrak. Biodiesel dihasilkan melalui reaksi transesterifikasi atau reaksi esterifikasi asam lemak bebas dan tergantung dari kualitas minyak nabati yang digunakan sebagai bahan baku. Teknologi produksi biodiesel memiliki 2 metode yaitu metode katalis dan non katalis. Salah satu metoda produksi biodiesel tanpa katalis adalah metoda superheated methanol vapor (SMV). Namun metode inimenghasilkan kadar biodiesel yang rendah dari SNI. Salah satu cara untuk meningkatkan kadar biodiesel dengan meningkatkan luas kontak permukaan antara gelembung metanol dengan minyak. Hal ini dilakukan dengan memberikan perforated plate (obstacle) di dalam kolom reaktor. Perancangan desain obstacle sangat mempengaruhi luas kontak permukaan antara metanol uap dan minyak. Beberapa jenis obstacle yang dirancang di simulasikan dengan metode Computational Fluid Dynamics (CFD), karena CFD dapat menggambarkan distribusi gelembung di dalam kolom reaktor, sehingga pembuatan obstacle dapat lebih tepat dan memudahkan menganalisa perilaku gelembung di dalam kolom reaktor. Hasil simulasi di-dapatkan luas kontak permukaan yang tertinggi menunjukkan desain obstacle A-4 dengan nilai sebesar 0.013635 m2/det. Namun kadar metil ester pada obstacle tersebut masih rendah dibandingkan dengan SNI yaitu sebesar 67.73% (w/w). Untuk kadar metil ester yang mendekati SNI adalah obstacle D-4 yaitu 94.55 % (w/w).Comparative Study Of Behavior In Non-Catalytic Bullet Column Reactors With CFD Simulation on Content me biodieselAbstract. Biodiesel is produced through transesterification reaction triglycerides or esterification of free fatty acids depending on the FFA content of the feedstock. The reaction normally requires a catalyst, even though the non-catalytic reaction has attracted significant attention recently. One of the non-catalytic method by using superheated methanol vapor (SMV). However, this method still has a low reaction rate and thereby needs to be improved by increasing the surface contact area between methanol vapor and oil. In this study, the utilization of a perforated plate (obstacle) in the reactor column was studied using computational fluid dynamics (CFD).  Several types of obstacles were designed and their influence on the reaction rate was evaluated through CFD simulation. The result shows that obstacle design A4 gave the highest contact surface (0.013635 m2/s), even though methyl ester concentration in the reaction product is still low (67.73 %w/w). For methyl esters which are close to SNI is design obstacle D-4, which is 94.55 %(w/w).
Social factors associated with practice of self-monitoring of blood glucose among type-2 diabetic patients
Authors: B. M. Sindhu , B. M. Rashmi , G. Prashanth , Kumbar Abhinandan S.
Published: July 2020

Background: Self-monitoring of blood glucose (SMBG) is an effective self-management tool to achieve desirable haemoglobin A1c (HbA1c) targets and minimizing glucose variability, when the data is timely reviewed and acted upon by healthcare providers and diabetic patients to actively modify behaviour and/or adjust treatment. SMBG improves patient’s disease awareness and participation in disease management.Methods: This cross-sectional study was conducted at Basaveshwara Hospital, Chitradurga, to estimate percentage of type-2 diabetics practicing SMBG and to assess social factors associated with SMBG practice. Diabetic patients in age-group of 18-75 years were included in the study. Information was collected by interview technique, clinical examination and review of laboratory reports.Results: A 21.5% patients were practicing SMBG. SMBG practice was significantly higher among patients who were urban-area residents (25.0%), with higher educational qualifications (42.2% of patients who studied up-to 12th standard and/or above), with better awareness of diabetes self-management (28.9%) and with better socio-economic status (35.3%). Majority of patients with longer duration of diabetes (4.9±1.5 years), relatively older age group (57.3±2.5 years), with associated co-morbid conditions (26.8%) were found to be practicing SMBG. HbA1c levels were significantly lower among SMBG practicing group (6.6±0.7%).Conclusions: Better health literacy, higher educational qualifications, financial stability, easier access to specialized anti-diabetic health-care are favourable factors for SMBG practice. Study also highlighted favourable effect of SMBG practice on effective achievement of target HbA1c levels.
Força de preensão palmar e habilidade manual em funcionários de escritório
Authors: Scherer Drumond Isabella , Cunha Michel De Paulo , Leite Reis Camila De Fátima , Rodrigues Adriano , Almeida Galdino Alves Debora
Published: July 2020

Introdução: As patologias dos membros superiores (MMSS) constituem as doenças ocupacionais mais frequentes, contribuindo para o crescente número de trabalhadores com força e habilidade diminuídas. Em pesquisas das capacidades manipulativas, a força de preensão (FPP) e destreza manual (DM) são elementos básicos a serem analisados, pois fornecem um índice objetivo da integridade funcional dos MMSS e constituem um indicador relevante na análise do estado geral do indivíduo. Objetivo:  verificar a FPP e DM em trabalhadores de escritório correlacionando com a presença de dores osteomusculares nos MMSS. Métodos: Foram avaliados 83 trabalhadores de escritório de uma instituição de ensino superior de ambos os gêneros. A  FPP foi avaliada através de um  dinamômetro hidráulico de mão, a DM avaliada através do Teste de Caixa de Blocos e os sintomas de DORT foram avaliados através  do questionário Nórdico de Sintomas Osteomusculares. Resultados: Os voluntários apresentaram valores de FPP e de DM dentro dos valores esperados para a faixa etária na mão dominante. Em relação aos sintomas osteomusculares 77,9% apresentaram dor ou desconforto em alguma região do MMSS nos últimos doze meses. As áreas mais acometidas pelos sintomas foram: coluna torácica, pescoço, ombros e punhos respectivamente.  Não foram encontradas correlações significativas entre a FPP, a DM e os  sintomas de DORT. Conclusão: Observou-se que não existe correlação significativa entre a FPP e a DM com a presença da sintomatologia dolorosa da DORT na população estudada, no entanto a prevalência de dores osteomusculares em trabalhadores de escritório foi alta.

 

 
Identificação de perigos e riscos na operação ferroviária com uso da técnica de análise What If
Authors: Diniz Marco Aurélio Bezerra
Published: July 2020

O objetivo deste estudo é realizar a análise dos perigos e riscos relacionados à operação ferroviária identificados por meio do uso da técnica de análise de riscos What If. O principal ponto identificado se refere a distorção entre os índices de acidentes ferroviários registrados dentre as empresas ferroviárias atualmente em operação. Foi registrado um levantamento bibliográfico considerando as peculiaridades da área de conhecimento ferroviária bem como das técnicas de análise de riscos, buscando o alinhamento técnico. Posteriormente, foi feito o mapeamento das atividades rotineiras relacionadas a operação ferroviária para fins de uso na técnica de análise. Finalizou-se com a aplicação da técnica What If bem como da análise dos resultados obtidos. O estudo concluiu que a técnica é adequada para fins de utilização para identificação de riscos na operação ferroviária e deve ser sucedida por outras técnicas para um melhor detalhamento dos riscos identificados, conforme a necessidade identificada.
Early Childhood Pedagogy: Veronica Pacini- Ketchabaw Interviews Peter Moss
Authors: Pacini-Ketchabaw Veronica , Moss Peter
Published: July 2020

This conversation between Peter Moss and Veronica Pacini-Ketchabaw addresses a wide range of subjects, from Moss’s early writings on the ethical and political struggles of early childhood education to the challenging suggestions of pedagogical experimentation.
ОБ ИСТОРИИ ПОЛОЖИТЕЛЬНЫХ ОПЕРАТОРОВ (1900-е - 1960-е гг.) И ВКЛАДЕ М. А. КРАСНОСЕЛЬСКОГО
Authors: Богатов Е. М.
Published: July 2020

Целью работы является изучепие вклада зарубежных и отечественных математиков, в особенности М. А. Красносельского, в развитие теории лилейных и пелипейпых положительных операторов за период с середины 1900-х гг. до конца 1960-х гг.Метод. Исследование основано па анализе оригинальных работ О. Перрона, Ф. Г. Фробепиуса, Р. Ептча, П. С. Урысопа, М. Г. Крейна, М. А. Рутмапа, М. А. Красносельского и др. в контексте общемирового процесса развития функционального анализа.Результат. Вклад отечественных учёных в области положительных операторов оказался больше, чем вклад остальной части мирового математического сообщества в рассматриваемый период. Советские математики М. Г. Крейн и его учепик М. А. Рутмап в 1940-е гг. создали теорию конусов и линейных положительных операторов A в бесконечномерном пространстве и применили её к исследованию разрешимости уравнений вида Ax = Ax. Благодаря усилиям другого ученика М. Г. Крейна - М. А. Красносельского - с середины 1950-х гг. теория положительных операторов приобрела своё зпачепие, как общий метод для решепия широкого класса задач качественного характера, относящихся к анализу нелинейных операторных уравпепий (в том числе, доказательство новых теорем о неподвижной точке и структуре спектра положительного оператора A, исследова^е бифуркационных значений параметра ц в уравнении вида x = A(x, ц), обоснование метода последовательных приближений для уравнения Ax = Ax с iio. niiieinn.iм оператором A в конусе банахова пространства и т.п.). Кроме того, в рамках развитой М. А. Красносельским теории удалось решить ряд задач прикладного характера.Обсуждение. Анализ достижений в области положительных операторов показал, что в отдельно взятой стране (СССР) могут быть сформированы условия для успешного создания и развития целого научного направления. Огромное зпачепие здесь имеет масштаб учёных, стоящих у истоков этого направления - М. Г. Крейна и М. А. Красносельского.
 
1Работа представляет собой расширенный и дополненный вариант доклада па Воронежской зимней математической школе С. Г. Крейна - 2020 [Богатов, 2020], а также выступлений па XXV годичной научной конференции ИИЕТ РАН им. С. И. Вавилова, секция История математики, [Богатов, 2019 а] и па XVI международной конференции «Алгебра, теория чисел и дискретная геометрия: современные проблемы, приложения и проблемы истории [Богатов, 2019 Ь]»
ОБ ОДНОЙ СПЕКТРАЛЬНОЙ ЗАДАЧЕ В ПЛОСКОМ УГЛЕ ДЛЯ СИНГУЛЯРНОГО ЭЛЛИПТИЧЕСКОГО ДИФФЕРЕНЦИАЛЬНОГО ОПЕРАТОРА ВТОРОГО ПОРЯДКА
Authors: Королев Н. В. , Ларин А. А.
Published: July 2020

В работе решена спектральная задача специального вида для сингулярного эллиптического оператора второго порядка в неограниченном угловом секторе па плоскости. Показана перестройка собственных зпачепий и измепепие формы собственных функций при вариации утла раствора сектора. Установлена необходимость измепепия грапичпых условий при трансформации области поиска решепия от углового сектора к полуплоскости.
MICROORGANISMS IN MACAUBA FRUITS (Acrocomia aculeata) AFTER DIFFERENT POST-HARVEST TREATMENTS AND STORAGE
Authors: Queiroz Lorena Aires Lombardi , Nascimento Camila Sales , Silveira Ana Luíza Machado , Santos Vera Lúcia dos , Caño Andrade Maria Helena
Published: July 2020

The  Macauba fruits (Acrocomia aculeata) may be promising source of vegetable oil for food purposes, cosmetics and energy, due to the high productivity and obtainment of  two oil types. However, the main constraint is associated with the rapid deterioration of the fruit, leading to production of oil with high acidity. The acidification process can be caused by microorganisms growing associated with fruits, by high pulp moisture and by the endogenous lipase activity. This study aimed to quantify microorganisms present in the husk and fruit pulp after different post-harvest treatments and after 30 days storage, comparing effectiveness of different conservation treatments by simple and inexpensive techniques. The storage period was determined according to preliminary tests where it was observed that at 30 days of harvest the fruits were already deteriorating. After storage there was a predominance of fungi in pulp and bacteria and yeasts in the husk.
ÍNDICE DE GEOACUMULAÇÃO DE MERCÚRIO NA BACIA DO IGARAPÉ DO EDUCANDOS (MANAUS/AMAZONAS)
Authors: Torrezani Larissa , Sargentini Junior Ézio , De Oliveira Cássio Augusto , Santana Genilson Pereira
Published: July 2020

A Amazônia é uma região conhecida mundialmente por sua biodiversidade, mas também por apresentar altos níveis de Hg em diversos compartimentos do ambiente. Neste trabalho, o Hg foi determinado em sedimento da Bacia do Educandos, uma das regiões mais habitadas de Manaus (AM), a fim de estabelecer a distribuição superficial deste contaminante nas frações grosseiras e fina. Amostras de sedimento superficial foram coletadas em nove locais da bacia; três de nascentes do igarapé principal e o restante em áreas contaminadas pela atividade antrópica. As concentrações de Hg foram determinadas em amostras brutas (fração total) e secas < 63µm (fração fina) por Direct Mercury Analyzer (DMA-80). Os resultados revelaram uma concentração de Hg nas nascentes de 0,24 mg kg-1, superior aos valores de alarme das diretrizes para avaliação da qualidade de sedimentos (do inglês, sediment quality guidelines, SGQs). Os demais pontos amostrados revelaram enriquecimento de Hg, variando o índice de geoacumulação de moderado a fortemente poluído em um ponto inicial do igarapé a pouco a moderadamente poluídos nos demais pontos.
CÓDIGO NUMÉRICO DO OPENFOAM PARA ESTUDO DE MODELOS DE FLUXOS BIFÁSICOS GÁS-LÍQUIDO: VALIDAÇÃO
Authors: De Paula Dayana Mendes Louzada , Mas De Les Valls Elisabet , Siqueira Antonio Marcos de Oliveira , Batet Lluís
Published: July 2020

Este artigo tem como objetivo a validação de um código numérico para o estudo de fluxos bifásicos gás-líquido. Os resultados obtidos mostram que: 1) para a reprodução numérica de regimes turbulentos por meio de modelos laminares, torna-se necessário o emprego de uma malha bastante refinada, o que muitas vezes pode ser inviável tecnicamente; 2) a aplicação de um modelo de turbulência a uma geometria 2D, tampouco é interessante, pois a turbulência pode provocar significativa dispersão numérica, amortizando os vórtices; 3) a reprodução de um modelo de turbulência em 3D produz resultados satisfatórios, mesmo por meio de uma malha mais grosseira. Com base nestas observações, é possível afirmar que o código numérico do OpenFOAM para modelo de fluxos bifásicos gás-líquido, twoPhaseEulerFoam, é viável e adequado para representar quali e quantitativamente casos reais de modelos bifásicos, inclusive o sistema “hélio-metal líquido” dos breeding blankets de HCLL da Tecnologia de Fusão Nuclear, a partir das validações efetuadas por meio de medidas experimentais.
ANÁLISE POR MEIO DO MÉTODO DE ELEMENTOS FINITOS DAS TENSÕES-DEFORMAÇÕES NAS ENGRENAGENS DA CAIXA DE TRANSMISSÃO DO VEÍCULO BAJA
Authors: Alexandre Hygino de Medeiros Arnaldo , Geice Paula Villibor Geice
Published: July 2020

O presente trabalho teve por objetivo realizar uma análise estrutural utilizando o MEF a fim de entender o motivo da falha da engrenagem do segundo estágio de redução do veículo UFVbaja de 2014, para assim projetar uma nova com parâmetros de projetos diferentes que a deixe mais resistente, evitando que esta sofra a mesma falha da antiga.
PROJETO DE UM SISTEMA PNEUMÁTICO DE CORTAR TUBOS DE PVC EM UMA LINHA DE PRODUÇÃO
Authors: De Rezende Coronel Michel Ângelo , Ferreira Martins Thiago
Published: July 2020

Esse trabalho consistiu em usar os conhecimentos teóricos da matéria Sistemas de Controle Hidráulicos e Pneumáticos para o desenvolvimento de um pneumático, de forma a automatizar um processo. Para a realização, foi feita a escolha de um processo específico, modelagem de redutores de tubulação, para ser automatizado. Concluiu-se que um sistema pneumático demonstrou ser a melhor opção para esse problema, pois as pressões demandadas são relativamente baixas. O projeto tem como finalidade a modelagem de redutores de tubulação através de um sistema pneumático automatizado.
ROTA DE FABRICAÇÃO DE UMA CHAVE MODELO YALE
Authors: Benini Lucas , Almeida de Paula Gabriele
Published: July 2020

A chave Yale, assim como os demais tipos de chave, passa por diversos processos de fabricação desde o material em bruto até o produto final. Pode-se produzir uma chave utilizando diferentes rotas de fabricação, ou processos de fabricação, até de obter a chave com o segredo. O objetivo deste trabalho é a determinação de uma rota de fabricação para uma chave tipo Yale, considerando as características necessárias deste produto, processos produtivos e o processo de cópia da chave (chave com segredo).
ESTUDO DE UM NOVO PERFIL AERODINÂMICO VOLTADO PARA A COMPETIÇÃO SAE BRASIL AERODESIGN
Authors: Vaz de Souza Barbosa Hygor
Published: July 2020

Este trabalho será focado em um estudo realizado a fim de melhorar o sistema aerodinâmico do projeto da equipe Skywards Aerodesign.Diante dos objetivos da equipe, torna-se necessário uma criteriosa análise aerodinâmica em busca do perfil adequado para a asa, uma vez que a asa é um dos fatores de grande importância na eficiência e no desempenho da aeronave. A proposta é criar um perfil que possua melhor desempenho aerodinâmico, priorizando inicialmente o coeficiente aerodinâmico (cl/cd), utilizando um coeficiente de sustentação (cl) elevado, objetivando pleitear uma diminuição no coeficiente de arrasto (cd), e um considerável coeficiente de momento (cm).
AVALIAÇÃO DOS PARÂMETROS DE RUGOSIDADE DO AÇO ABNT 1020 TORNEADO COM FERRAMENTAS DE MATERIAL DURO
Authors: Benini Lucas , Alberto Castheloge Rossi Mauro
Published: July 2020

Neste trabalho, tratar-se-á especificamente do processo de torneamento, com o objetivo de analisar dados de rugosidade de peças usinadas utilizando os parâmetros de corte indicados pelo fornecedor da ferramenta de corte, assim como apurar a precisão destes parâmetros para o limite de trabalho da ferramenta na usinagem do aço ABNT 1020.
PREPARAÇÃO DE AMOSTRAS DO AÇO USI-CIVIL 350 DE PARA ANÁLISES METALOGRÁFICAS
Authors: Pinto Silveira Túlio
Published: July 2020

O aço USI-CIVIL 350 possui 0,23% em média de carbono e é bastante útil por ser ter alta resistência mecânica e ser de baixa liga, além de se enquadrar na categoria dos aços patináveis, os quais sob certas condições ambientais, podem desenvolver uma camada protetora contra a corrosão, formada por uma película de óxidos aderentes, a pátina. Com tais características ele é eficaz na construção de edifícios, pontes, navios e automóveis. Nesse trabalho, objetivou-se preparar amostras metalográficas desse aço, laminado à quente, para o estudo da relação entre o corte do material com a sua microestrutura.
INFLUÊNCIA DA VELOCIDADE DE CORTE DO PROCESSO DE TORNEAMENTO NOS RESULTADOS DE RUGOSIDADE DO AÇO ABNT 1020
Authors: Rosado de Paula Thiago , Benini Lucas
Published: July 2020

De acordo com Amorim (2002) em quase todos os produtos é necessário o uso de procedimentos de usinagem em algum momento da sua fabricação, sendo difícil citar algum produto que não demande um processo de usinagem de forma direta ou indireta. O alto grau de precisão das dimensões, o bom acabamento superficial e a grande variedade de geometrias possíveis de serem usinadas justificam a grande utilização dos processos de usinagem. Essas características fazem com que os demais processos de fabricação dificilmente consigam substituir a usinagem. Além disto, este processo de fabricação é muitas vezes empregado com a intuito de promover uma melhora do acabamento superficial ou tolerância dimensional do produto manufaturado por outros processos de fabricação. Este trabalho tem o objetivo de verificar a influência dos parâmetros de processo nos resultados de trabalho de torneamento do aço ABNT 1020.
ESTUDO DE VIABILIDADE TÉCNICA, ECONÔMICA E COMERCIAL E DO IMPACTO AMBIENTAL E SOCIAL PARA O DESENVOLVIMENTO DE UM SOFTWARE
Authors: Zandomingo Silvestre Nathalia , Faria Adriana Ferreira de
Published: July 2020

Este trabalho teve por objetivo desenvolver o Estudo de Viabilidade Técnica, Econômica, Comercial e de Avaliação dos Impactos Social e Ambiental de Softwares (EVTECIAS) do Sistema de Gerenciamento de Bares e Restaurantes da Empresa THERIONTEC SISTEMAS INOVADORES, incubada na Incubadora de Empresas de Base Tecnológica do Centro de Desenvolvimento Regional da Universidade Federal de Viçosa (CENTEV/UFV).
ESTUDO DE CASO: O MAPEAMENTO DE PROCESSOS NO SETOR DE FATURAMENTO DE UM HOSPITAL
Authors: Eduardo Gomes Cardoso Francisco , Kasten Viana Luzmarina
Published: July 2020

O presente trabalho objetivou mapear os processos críticos dos setores do hospital, no intuito de possibilitar maior eficiência das atividades de maior valor agregado, melhor treinamento para os funcionários e de garantir maior conhecimento para a administração a respeito do funcionamento dos departamentos do hospital. Dessa forma, o projeto visava promover o redesenho e a melhoria dos processos, proporcionando uma gestão racional, sistemática e integrada do hospital.