bluuebunny/crossref_metadata_2025 huggingface dataset:
Infecção odontogênica grave após exodontia de terceiros molares - relato de caso
Authors: Rocha Emyly Natanny Reis , Mendonça José Carlos Garcia de , Pelissaro Gustavo Silva , Gaetti-Jardim Ellen Cristina
Published: December 2021

As infecções odontogênicas são complicações comumente enfrentadas pelos dentistas pós-exodontia de terceiros molares, dessarte, é de suma importância que os cirurgiões maxilofaciais saibam diagnosticar e tratar corretamente esses casos. Assim, o objetivo é relatar um caso clínico de paciente mulher de 20 anos de idade com infecção odontogênica grave. Paciente leucoderma, com aumento volumétrico extenso em face a direita, histórico de exodontia prévia em elemento dental com quadro de pericoronarite prévia a extração, admitida pelo Serviço de Cirurgia e Traumatologia Bucomaxilofacial do Hospital Universitário Maria Aparecida Pedrossian. Edema extenso em região submandibular a direita, dispneia, disfagia e trismo acentuado. Aos exames de imagem, ausência dos dentes 18 e 48 e lojas de coleção purulenta. O tratamento foi cirúrgico com drenagem do exsudato, curetagem das regiões de exodontia e antibioticoterapia. Associado ao procedimento cirúrgico foram solicitadas avaliação de especialidades médicas para controle sistêmico da paciente. Após 7 dias de internação a paciente recebeu alta, mas manteve retornos pós-operatórios. O quadro severo apresentado pela paciente mostra a magnitude que pode atingir a infecção odontogênica. O tratamento cirúrgico pós-operatório corroborado com antibioticoterapia e controle sistêmico da paciente foram decisivos. O tratamento da pericoronarite antes da exodontia é o fator decisivo para se evitar processos infecciosos da magnitude apresentada pela paciente.
Aplicação de recursos fisioterapêuticos no tratamento de estrias
Authors: Nascimento Júnior Jorge Carlos Menezes , Camargo Alessandra Couto de , Silva Alessandra Regina Lima da , Nascimento Carolina Gomes do , Braga Dandara Lie Santos
Published: December 2021

Objetivo: Analisar a utilização de recursos fisioterapêuticos, tais como Vacuoterapia e Microgalvanopuntura no tratamento direto de estrias atróficas. Métodos: Trata-se de uma revisão sistemática descritiva do tipo transversal. Embasada em levantamento feito nas plataformas digitais Scielo, Google acadêmico e Capes periódica. Os artigos encontrados foram no idioma da língua portuguesa. O critério de inclusão utilizado foram os artigos que apresentassem estudos de casos com a temática da aplicação dos recursos terapêuticos no tratamento de estrias atróficas. Resultados: De maneira geral os estudos apresentaram resultados promissores quanto ao uso dos recursos terapêuticos em indivíduos que relataram ter estrias atróficas em alguma área corporal.
Gravidez na adolescência: perfil sociodemográfico e comportamental de uma população de um bairro periférico do Acre
Authors: Costa Vanessa Holanda de Souza Ribeiro da , Nascimento Anderson Araujo do , Pessoa Charles Braz , Nascimento Elissandro Araujo do , Américo Priscila Santos , Costa Victor Matheus de Souza , Faustino Welington Pompeu , Lameira Yara Costa , Costa Ruth Silva Lima da
Published: December 2021

A gravidez na adolescência é um fenômeno amplamente discutido no Brasil, e esse debate é movido pelas consequências de gestar neste ciclo da vida. O presente estudo objetiva identificar o perfil sociodemográfico e comportamental de adolescentes gravidas de um baixo periférico do Acre.  Trata-se de um estudo transversal, de abordagem quantitativa, realizado junto a 30 adolescentes grávidas. A maioria encontrava-se com 17 anos (40%), eram casadas (47%), a cor da pele parda (50%), não sabiam informar a renda familiar (53%), ensino médio incompleto (47%), não exerciam trabalho remunerado (97%), evangélicas (53%) e moravam com o companheiro (53%). A maior parte iniciou a atividade sexual com 15 anos, (30%), e engravidaram pela primeira vez aos 17 anos (23%). Para a maioria a gravidez não foi planejada (73%) e realizaram de 5 a 7 consultas de pré-natal (30%). Todas afirmaram têm o apoio do pai do bebê (100%) e a maior parte recebia o apoio da família (94%). Todas continuaram os estudos após a gravidez (100%), pois esse era o principal projeto de vida que tinham antes de engravidar (73%). A principal mudança que ocorreu após a gravidez foi o fato de terem que passar a dar prioridade ao bebê (47%). A gravidez na adolescência, está associada a fatores sócio econômicos, culturais e comportamentais, evidenciando a necessidade, cada vez mais frequente, de se implementarem medidas eficazes de prevenção e redução do comportamento de risco.
Development of antimicrobial resistance due to the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)
Authors: Goulart Débora Brito
Published: December 2021

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a new coronavirus identified in 2019. This disease, which may cause a serious respiratory infection, has been designated an international public health emergency and is being treated with several types of antivirals, antibiotics, and antifungals. While society works hard to combat the coronavirus disease 2019 (COVID-19) pandemic, it is equally vital to be prepared for the outbreak’s notorious effects on the development of antimicrobial resistance (AMR). Antibiotic misuse and overuse are predicted to have serious ramifications for antibiotic stewardship programs and AMR management worldwide. Importantly, the global influence on the creation of novel antimicrobial resistance is uncertain due to a paucity of data on antimicrobial usage during the COVID-19 pandemic. The current pandemic might be a useful tool for depicting the spread of antimicrobial resistance and underlining the difficulties in managing the issue once it has emerged. This review aims to assess available data on bacterial infections in coronavirus-infected patients and to offer insight into the development of AMR in the face of the current public health issue.
Use of serious games in medicine: a literature revision
Authors: Silva Francisco Anderson Mariano da , Silva Tiago Silva da , Zorzal Ezequiel Roberto
Published: December 2021

It is noticeable that more and more medical professionals have been searching for strategies to keep people engaged both in the recovery processes (cognitive or physical) and in the teaching part. It is possible to observe that the insertion of Serious Games has been offering this innovative possibility, which allows the development of new possibilities for several areas of knowledge. This study aims to carry out a review on the use of Serious Games in Medicine, exploring how the method has been used. The methodology used was a systematic review. Articles published from 2015 to 2020 in indexed in three databases such as IEEE, Scopus, Scielo, among others, were searched. If used correctly, the Serious Games can help in the rehabilitation process of patients affected by some sequelae caused by stroke (CVA - Cerebral Vascular Accident), and also in the rehabilitation process of people with degenerative problems. It was also possible to observe that SG can be used as motivating and engaging tools for medical students.
Análise fenomenológica das representações mentais de alunos do ensino básico em uma perspectiva de resgate à História e Filosofia da Ciência
Authors: Furtado Skarllat Mayana Kettle , Souza Renato Henriques de
Published: December 2021

Neste trabalho discutimos a respeito das representações mentais que os alunos têm sobre a Teoria Atômica. Partimos da premissa de que a realização de estudos voltados ao entendimento dos modelos mentais possibilita a compreensão da percepção humana, pois se trata de como vemos o mundo. Consequentemente, isso permite-nos abrir para possibilidades de compreensão dos conceitos científicos. Por conseguinte, utilizando a estratégia de investigação denominada fenomenologia, buscamos compreender as representações mentais de alunos da Educação Básica por meio de experiências e de concepções que eles possuem acerca dos modelos atômicos e da ciência. Para isso, analisamos as representações de dezesseis participantes da pesquisa, alunos do segundo ano do Ensino Médio Técnico Integrado em Informática do Instituto Federal do Amazonas (IFAM - Campus Itacoatiara/AM). O corpus de análise é composto por desenhos e outras formas de linguagem apresentadas pelos estudantes principalmente por meio de entrevistas semiestruturadas gravadas e questionários aplicados de forma individual em diferentes fases da pesquisa. Nossos resultados sugerem que uma abordagem de ensino pautada na História e Filosofia da Ciência (HFC) pode ser uma possível alternativa para a mudança de visões fragmentadas e incipientes que comumente perpassam a compreensão dos modelos dos átomos. Em outras palavras, consideramos que a HFC possibilita processos de ressignificação e, com base nisso, concluímos que esse tipo de abordagem se caracteriza como necessária no âmbito do Ensino de Ciências.
Atenção farmacêutica a saúde da pessoa idosa
Authors: Faria Juliana Santos Rocha , Paiva Maykon Jhuly Martins de
Published: December 2021

Este artigo tem como objetivo mostrar o papel fundamental do farmacêutico na saúde da pessoa idosa, uma classe tão essencial que muitas vezes fica desassistida, os idosos é a faixa etária que mais faz uso medicamentos no mundo, por isso há muito risco de se ter uma interação medicamentosa, já que a maioria deles tomam mais de 2 medicamentos por dia, o acompanhamento de um profissional habilitado é essencial para diminuirmos os riscos existentes, passar mais confiança para o tratamento que o idoso está fazendo, ensinar que as medicações devem ser tomadas no horário correto, e que não se pode parar um tratamento pela metade. Os idosos requerem muita atenção e zelo, pois em algumas situações eles nem sabem qual a finalidade dos inúmeros medicamentos que eles tomam, fazendo com que não terminem o tratamento corretamente, assim como os medicamentos de uso continuo, que não devem ser esquecidos de ser tomado. O farmacêutico é o profissional mais habilitado para esse suporte, devemos dar uma atenção maior para nossos idosos, já que muitas vezes o poder de entendimento deles é baixo, se deve ter um pouco mais de paciência e cautela, para fazer do tratamento medicamentoso algo que entre na rotina deles a ponto de não ser esquecido ou deixado de lado.
Aplicabilidade do Ensino de Ciências Baseado em Investigação em uma escola pública de ensino fundamental de Guaraí-TO
Authors: Vasconcelos Larissa Leonilda Pereira Melo , Neres Julio Cesar Ibiapina
Published: December 2021

Este trabalho é produto de um estudo sobre a viabilidade da aplicação da metodologia de ensino de ciências baseado em investigação em uma turma do nono ano do Ensino Fundamental na disciplina de química, em uma escola pública do município de Guaraí. Os alunos da escola em questão tiverem contato com tal metodologia de ensino pela primeira vez, pois estavam habituados à metodologias mais tradicionais, baseadas em aulas expositivas centradas no professor na construção do conhecimento. Este estudo permitiu evidenciar as dificuldades e limitações possíveis na implementação de atividades investigativas no contexto em questão, como a falta de autonomia dos alunos em resolverem problemas, elaborarem hipóteses, expor e divulgar ideias, enfim, de atuar na construção do conhecimento por si mesmos. Em contrapartida, alguns envolveram-se na proposta de ensino e participaram com curiosidade e entusiasmo na elaboração de explicações e nas discussões. Portanto, vale destacar a viabilidade da aplicação do ensino de ciências por investigação como sendo possível mediante capacitação do professor e colaboração dos alunos, dada a importância de tais atividades no desenvolvimento de habilidades, capacidade de argumentação e desenvolvimento do pensamento crítico que moldam a formação do ser humano como cidadão.
Caracterizar epidemiologicamente e referir os diagnósticos de enfermagem ao paciente acometido por leishmaniose visceral em Santarém-PA
Authors: Santos Claudia Maria Pereira dos , Souza Claudineia Alves de , Barbosa Renilson Venancio , Farias Maria Conceiçao Cavalcante
Published: December 2021

Introdução: A leishmaniose visceral é uma doença zooantroponose endêmica, causada por um protozoário climorfico trypapanossomatidae e sua transmissão para humanos ocorre através de vetores artropoles dos gêneros lutzonia  phebotomia. Metodologia: Trata-se de um estudo qualitativo, transversal, retrospectivo documental e descritivo realizado através de coleta de dados no sistema de informação de notificação de doenças de notificação compulsória TABNET - Datasus e para elaboração dos diagnósticos de enfermagem foi usado NANDA-I 2018-2020. Resultado e Discussão: Os resultados mostram que no período de 2010 a 2019 foram notificados e confirmados 75 casos de leishmaniose visceral no município de Santarém Pará com maior incidência entre os anos de 2010 a 2013 com 44% dos casos, o sexo masculino apresentou taxa de 68% dos casos, a faixa etária entre 0-9 anos apresentaram 49% dos casos e a zona urbana estão pessoas entre os mais infectados com 60% dos casos, os diagnósticos de enfermagem que mais comuns são nutrição desequilibrada: menor do que as necessidades corporais, conhecimento deficiente, risco de desequilíbrio na temperatura corporal. Conclusão: O estudo em questão identificou que a população do município de Santarém-PA apresentou maior número dos casos no sexo masculino e os casos com maior incidência ocorreu na zona urbana devido à infraestrutura inadequada que acaba contribuindo para infecção da leishmaniose visceral humana.
Análise do escoamento da soja no estado de Mato Grosso do Sul: Perspectiva do corredor bioceânico
Authors: Matos Fransérgio Sampatti Santos , Reis João Gilberto Mendes dos , Carducci Carla Eloize , Formigoni Alexandre
Published: December 2021

Os produtores de soja do estado de Mato Grosso do Sul (MS) enfrentam de forma direta ou indireta o alto custo de transporte para o escoamento do grão através da utilização do modal rodoviário. Desse modo, é preciso encontrar alternativas para aumentar a eficiência desse escoamento aumentando assim a lucratividade dos produtores. Este estudo avalia a utilização do corredor bioceânico Mercosul-Chile em comparação as principais rotas de escoamento da soja do MS para o mercado asiático – principal mercado importador. Para isso adotou-se a metodologia de multicritério Analytic Hierarchy Process (AHP) que visa avaliar alternativas baseadas em critérios e subcritérios. Os dados primários foram coletados via aplicação de questionários aos profissionais da área: comercialização, logística e consultores agrícolas. Por meio deste determinou-se os seguintes critérios: infraestrutura, custo, impacto ambiental e tempo; já  os dados secundários foram adquiridos em  diversas bases de dados científica: Scopus, Science Direct para assim mensurar os pesos dos critérios e subcritérios: rodovias, portos, frete marítimo, frete rodoviário, pedágios, tarifa portuária, emissão de CO2, consumo de combustível, tempo de viagem, distância rodoviária e distância marítima. Os resultados indicaram que a melhor rota de escoamento da produção de soja no Mato Grosso do Sul para o mercado asiático continua sendo pelo porto de Santos sugerindo assim, a necessidade de novos estudos estratégicos para a utilização do corredor bioceânico no Estado.
Microplastics in the ocean: an overview and an outlook
Authors: Suvorova Anastasia A.
Published: December 2021

The article provides an overview of scientific publications on the composition, genesis and distribution of microplastics in the ocean, as well as its effects on organisms and marine ecosystems. The most relevant areas of study of microplastics in the oceans are proposed.
Computer tomography in diagnostics and treatment of inflammatory complications of diverticular disease of the colon
Authors: Karpukhin O. Yu. , Yusupova A. F. , Pankratova Yu. S. , Cherkashina M. I. , Akhmadullina A. A.
Published: December 2021

AIM: to evaluate the role of computed tomography (CT) in the treatment and diagnostic algorithm in patients with complicated diverticular disease (CDD).

PATIENTS AND METHODS: during the period from 2014 to 2020, 165 hospitalized patients with complications of CDD included in the study. Fifteen (9.1%) patients were hospitalized for elective indications and 150 (90.9%) as emergencies. The indications for hospitalization were inflammatory complications of CDD. Computed tomography with intravenous contrast was performed in 89 (53.9%) patients. The study was performed on a 64-slice CT “Philips Brilliance 64” with intravenous bolus injection of a low-osmolar iodine-containing contrast agent. The absence of the CT in the remaining patients is due to the presence of classical symptoms of acute diverticulitis with a previously verified diagnosis of CDD, the presence of an informative transabdominal ultrasound, as well as the refusal of patients from CT.

RESULTS: the CT allowed to verify the presence of diverticula in the patients, to reveal the distinctive CT signs and pathognomonic symptoms of inflammatory complications of CDD, as well as to establish the severity of the complications that occurred. The specific signs of the destruction of the diverticulum and the complications developed were abdominal mass, abscess, peritonitis, and fistula. Besides the diagnostic value, CT scan permitted to choose the treatment approach and to clarify indications for surgery. Besides that, some CDD complications revealed by CT were considered as a predictor of ineffectiveness of conservative treatment, which requires surgery.

CONCLUSION: CT is a valuable diagnostic method for CDD which allows to determine timely the clinical form of inflammatory complication, to find out indications for surgery and to predict high risk of recurrence.
Laparoscopic right colectomy with intracorporeal ileotransverse anastomosis (results of the pilot study)
Authors: Romanova E. M. , Sushkov O. I. , Surovegin E. S. , Shakhmatov D. G.
Published: December 2021

AIM: to evaluate the safety of intra- and extracorporeal ileotransverse anastomosis in laparoscopic right hemicolectomy.

PATIENTS AND METHODS: a pilot «case-control» study included two groups of patients, who underwent laparoscopic right colectomy according to a standardized technique. An intracorporeal anastomosis (IA) was formed in the main group (n = 20), in the control group — extracorporeal anastomosis (EA) (n = 18).

RESULTS: in main group the postoperative complications rate was 20%, in the control group — 28% (p = 0.71). The postoperative hospital stay in the main group was significantly less than in control (5.0 vs 7.3 days) (p < 0.001).

CONCLUSION: the postoperative complications rate in both groups was not significant, but postoperative hospital stay was shorter in IA group. A randomized controlled trial is required.
Rectal gastric heteroptopia in a child. Case-report of casuistic pathology
Authors: Sherbakova O. V , Khabibullina L. R.
Published: December 2021

Heterotopy of gastric mucosa in the rectum in children is a rare malformation to keep in mind when examining a child with a rectal bleeding. About 5 such clinical cases in children were described in the literature over the past 10 years. This condition is congenital, due to impaired tissue differentiation during embriogenesis. This case-report demonstrates the diagnostics and treatment of a child with rectal gastric heteroptopia.
The use of a laser in treatment of hemorrhoids (review)
Authors: Vyshegorodtsev D. V. , Korolik V. Yu. , Bogormistrov I. S. , Battalova A. M. , Mukhin I. A.
Published: December 2021

The literature review compares laser and traditional surgery for hemorrhoids. The efficiency and possibility of minimally invasive treatment using laser of different wavelengths were analyzed. The review described the innovative technologies of laser treatment of hemorrhoids which make this method promising.
Electromyographic activity of the masseter muscle in individuals with group function and canine guidance
Authors: Domingos Nathália de Oliveira , Bernardino Júnior Roberto , Gaspar Patrícia Teixeira de Carvalho , Lizardo Frederico Balbino , Amorim César Ferreira , Silva Daniela Cristina de Oliveira
Published: December 2021

Background. There is no general consensus in restorative dentistry about which lateral guidance should be established. Some studies have shown that canine guidance decreases the tension of masticatory muscles. Others have reported that group function might achieve a better physiologic distribution of occlusal forces. Also, some reports have shown that both guidances are equally acceptable. Despite all discussions, clinical evidence of one guidance being superior to another is limited. Thus, this study aimed to analyze the electromyographic (EMG) activity of masseter muscles in individuals with group function and canine guidance. Methods. Twenty volunteers of both genders, aged 20-25, were divided into two groups: GF (group function guidance, n=10) and CA (canine guidance, n=10). EMG activity of masseters was captured using surface electrodes during habitual maximum intercuspation (HMI) and right and left lateral jaw movements and recorded using EMG amplitude values (RMS – root means square). Student’s t-test was used to compare mean RMS values between the groups and lateral movements in each group. Results. During HMI, there was no difference in masseter EMG activity between the groups. Both masseters showed higher activity in group GF only on the right side during lateral movements, while the left masseter exhibited higher activity on the nonworking side in both groups. The activity of both masseters distributed by tooth was higher in group CA. Conclusion. During tooth restorative procedures, any guidance is acceptable considering HMI. However, group function guidance is more favorable during lateral movements due to greater dissipation of occlusal pressures.
Denture base adaptation, retention, and mechanical properties of BioHPP versus nano-alumina-modified polyamide resins
Authors: Emera Radwa Mohsen Kamal , Abdallah Reham Mohammed
Published: December 2021

Background. Continuous development of denture base materials has led to the introduction of innovative alternatives to polymethyl methacrylate. The present study aimed to evaluate the mechanical properties, adaptation, and retention of alumina nanoparticles (Al2 O3 NPs) modified polyamide resin versus BioHPP (high-performance polymer) denture base materials. Methods. Four groups of specimens, one control (group I) (unmodified polyamide) and two groups (groups II and III) (2.5 and 5 wt% Al2 O3 NP-modified polyamide, respectively) versus BioHPP specimen group (group IV), were tested for surface microhardness and flexural strength. Complete dentures fabricated from 5 wt% Al2 O3 NP-modified polyamide resin and BioHPP were used to evaluate denture base adaptation and retention. Results. The higher concentration in the alumina NP-modified polyamide group (5 wt%) demonstrated significantly higher flexural strength values and insignificantly higher hardness values than the lower concentration (2.5 wt%). There was a significant increase in the BioHPP group in both flexural strength and surface hardness compared to all polyamide groups. A statistically insignificant difference was observed between the two denture base materials regarding mean misfit values of the calculated total tissue surface area and four of the total seven evaluated areas. Satisfactory and comparable retention values were observed for both denture base materials. Conclusion. BioHPP and Al2 O3 NP-modified polyamide resin could be used as a promising alternative denture base material with good adaptation, retention, and mechanical properties.
Correlation between mandibular third molar and mandibular incisor crowding: A retrospective CBCT-based study
Authors: Husain Seerab , Rengalakshmi Sri
Published: December 2021

Background. Late mandibular incisor crowding is a fairly common phenomenon experienced by growing adults. The etiology of late mandibular incisor crowding, however, is controversial and inconclusive. Hence, this study aimed to investigate the correlation between mandibular third molar and mandibular incisor crowding using Cone-beam computed tomography (CBCT) data. Methods. The study consisted of 40 samples of CBCT images divided into two groups (n=20). Group A comprised CBCT images without third molars, and group B included CBCT images with third molars. The images were observed in the axial view and manually marked to calculate the amount of crowding using Little’s irregularity index. The obtained values were statistically analyzed using Pearson’s correlation test. SPSS 23 was used for statistical analysis. Results. The results showed a positive correlation between the mandibular third molars and mandibular incisor crowding, which was significant (P=0.033). The mean Little’s irregularity index score for groups A and B were 4.26 and 6.799, respectively (P=0.033). Conclusion. The positive correlation between the two groups suggests an association between the mandibular third molars and mandibular incisor crowding.
Effect of RaCe, ProTaper, and V-Taper rotary systems on dentinal crack formation during endodontic treatment: An in vitro study
Authors: Shahi Shahriar , Bahari Mahmoud , Samiei Mohammad , Yavari Hamidreza , Mohammadzadeh Shabnam
Published: December 2021

Background. Prevention of dentinal crack formation is of utmost importance in endodontic treatment. This study aimed to evaluate the effect of RaCe, ProTaper, and V-Taper rotary systems on dentinal crack formation in three root regions during endodontic treatment. Methods. Seventy human mandibular first molars were selected randomly, and their distal roots were used. Ten samples were assigned to the control group, and sixty samples were assigned to three groups (n=20). Each group was prepared with RaCe, ProTaper, or V-Taper rotary files according to the manufacturers’ instructions. A stereomicroscope was used to view cracks at ×40 magnification. Friedman’s, chi-squared, and Kruskal-Wallis tests were used for statistical analysis of data (P<0.05). Results. A comparison of the three rotary systems did not reveal any significant differences in the number of cracks between the three root thirds evaluated (P>0.05). A comparison of the number of cracks in the coronal, middle, and apical thirds in each rotary system showed that the number of cracks in the middle third was fewer than that in the two other thirds only in the V-Taper group (P<0.05), with no significant differences in the ProTaper and RaCe groups between the different root regions (P>0.05). Conclusion. The application of RaCe, ProTaper, and V-Taper rotary files resulted in a similar rate of crack formation in endodontic treatment. V-Taper files created the minimum number of cracks in the middle third.
Microhardness evaluation of root dentin after using resin sealer solvents
Authors: Nalci Gamze , Alaçam Tayfun , Altukaynak Bülent
Published: December 2021

Background. This study aimed to assess the effects of methyl ethyl ketone (MEK) and ethyl acetate (EA) on dentin microhardness, used as resin sealer solvents. Methods. Eighty halves of single-rooted teeth were randomly divided into four groups to apply MEK, EA, chloroform, or saline solution. Vickers hardness values were measured for three root levels before and after the direct application of solvents for 5 and 15 minutes or a 1-minute application with ultrasonic agitation. The results were analyzed using repeated-measures ANOVA, and adjustments were made for comparisons with Bonferroni tests. Results. The dentin microhardness decreased in all the solvent groups (P<0.05). The changes in microhardness increased with prolonged exposure times, except for the saline solution group. Chloroform exhibited the most significant decrease in value. Furthermore, ultrasonic agitation elicited a more substantial decline in values. Conclusion. MEK and EA might be preferred over chloroform as a solvent for resin sealers because they offer an attenuated decrease in dentin microhardness and do not have gutta-percha-dissolving properties.
A 3-dimensional finite element analysis to evaluate the impact of force direction, insertion angle, and cortical bone thickness on mini-screw and its surrounding bone
Authors: Auwer Omar Nazal , Shamaa Marwa Sameh , Hammad Shaza Mohammad
Published: December 2021

Background. The present study aimed to assess the stress and strain distribution on mini-screws and the surrounding bone in cases of different cortical bone thicknesses (CBTs), mini-screw insertion angles, and force directions using finite element analysis (FEA). Methods. Inventor professional version 8 software was used to construct 24 three-dimensional assemblies of mini-screws inserted with different insertion angles (30º, 60º, and 90º) in alveolar bone blocks with different CBTs (0.5, 1, 1.5, and 2 mm). The models simulated mini-screws inserted in bones with different CBTs and different insertion angles. A 2-N load was applied in two directions to mini-screw heads. The resultant stresses of the applied load were collected from the output of the ANSYS program. Results. The results indicated that force direction affected bone strains as the horizontal force generated more strains on cortical bone than the oblique one. Force applied to 60º inserted mini-screws generated much more strains on cortical bone than 90º and 30º inserted mini-screws. In a 60º inserted mini-screw, the horizontal force generated about 45% more strains on cortical bone than the oblique one. The exerted microstrain on bone decreased as CBT increased. Conclusion. It can be concluded that inserting mini-screws at 60º to the bone surface should be avoided as it generates much more strains on cortical bone than 90º and 30º, especially when a force parallel to the bone surface is applied.
Effectiveness of different rotary file systems in removing the root canal filling material: A micro-computed tomography study
Authors: Özlek Esin , Gündüz Hüseyin
Published: December 2021

Background. This study aimed to examine the retreatment efficiency of four NiTi rotary file systems with micro-computed tomography (micro-CT). Methods. Forty premolar teeth were shaped up to F2 using the ProTaper Universal rotary file system and obturated with MTA Fillapex. The root canals were scanned with micro-CT to evaluate the volume of root canal filling before retreatment. The samples were randomly divided into four groups according to the file system used to remove root canal filling material (n=10): ProTaper Universal Retreatment, ProTaper NEXT, EdgeFile XR, and EdgeFile® X3 NiTi system. All the samples were scanned with a micro-CT device for the second time to evaluate the amount of residual filling material in the root canals. The percentages of filling material removed from root canals were calculated. Additionally, the time spent on the removal of the root canal filling material was recorded. The data were analyzed using the Shapiro-Wilk and Kruskal-Wallis tests. Results. There were no significant differences between the groups in the percentage of root canal filling material removal. However, a statistically significant difference was found between the groups in the time required to reach the apex and remove the entire filling material. The time required to remove the root canal filling material was higher in the EdgeFile® X3 group. Conclusion. NiTi files manufactured for root canal preparation can be used effectively and safely to remove root canal filling materials. EdgeFile XR produced for retreatment can be used as an alternative to ProTaper Universal Retreatment files.
Comparison of radiographic changes in the alveolar crest after extraction of fully and partially erupted premolars during orthodontic treatment: A retrospective analytical study
Authors: Darban Hosseini Sanam , Kachoei Mojgan , Faramarzi Masoumeh , Esmaeilzadeh Mahdiyeh
Published: December 2021

Background. The alveolar process plays an essential role in providing dental support and gradually disappears with tooth loss. Space deficiency can cause one premolar to remain semi-erupted adjacent to a fully-erupted premolar. During orthodontic treatment, each of these premolars can be extracted. This retrospective study aimed to compare radiographic changes of the alveolar crest due to orthodontic movements of fully-erupted and semi-erupted premolars into the extraction sites before and after treatment. Methods. The patients were divided into the fully-erupted premolar extraction (first) group and the semi-erupted premolar extraction (second) group. The distance between the cementoenamel junction (CEJ) and the alveolar crest, from the distal aspect of the canine to the mesial aspect of the first molar, was measured on panoramic radiographs of 78 patients (39 from each group) before and after treatment with a digital caliper. Changes in the alveolar crest were compared between the two groups. Finally, the height differences of the alveolar crest in mesial and distal aspects of the remaining premolars in both groups were calculated at the end of treatment. Descriptive statistical analyses and paired and independent t tests were used in the study. Results. The distance from the CEJ to the alveolar crest at mesial and distal aspects in the first group and the distal aspect of the extraction site in the second group increased significantly. However, changes at the mesial aspect were not significant in the second group. Comparing the alveolar crest height between the two groups and between the mesial and distal aspects of the remaining premolar tooth indicated no significant differences. Conclusion. No significant difference was observed between the extraction of a fully-erupted or semi-erupted premolar to obtain greater alveolar height.
Making Knowledge Management Research more Scientific, Relevant, and Engaged: A Comparative Study of Academic ECKM Papers
Authors: Jevnaker Birgit Helene , Olaisen Johan
Published: December 2021

The purpose is to analyse and compare all the academic papers in the proceedings of the European Conference on Knowledge Management (ECKM) in 2017 (Barcelona), 2018 (Padua), 2019 (Lisbon), and the digital conference in 2020 (Coventry). The methodology is to code and classify 440 papers and use five contemporary science frameworks to describe and analyse the papers. The theoretical implication of contemporary KM is a research field without common paradigms, domains, and perspectives without accumulating knowledge. The KM researchers do not understand the nature of knowledge management as a field where the research cannot be replicated, synthesized, or theorized. Knowledge management needs to move along from the empirical research paradigm to a clarified subjectivity and action-basedresearch. The criticism implying acceptable/unacceptable solutions and constructed adequate/inadequate solutions for corporations and societies have strengthened their place, offering new paradigms and perspectives. The way to do this is to let in controversial, greener, and sustainable studies, whatever objectivity or subjectivity the studies have. We need more actual problem focused and less knowledge and instrument focused studies. KM will have a higher responsibility for sustainability and greener corporations and the possibility of accumulating knowledge into replication and synthesizing for general knowledge. The rate of tested and replicated studies is for the four conferences zero. The tested part, but not replicated, is 80%. The rate of untheorized untheorizable concepts is zero, the rate of theorized but not synthesized studies is zero, while the number of synthesized, theorized, and conceptual studies is around 20%. To become a discipline or research domain KM needs to replicate both empirical and conceptual studies. The only way to accumulate knowledge is through replication giving paradigms for verification and falsification. To move ahead for better quality in the research, we must break free from the empirical and materialistic paradigms and move into the clarified subjectivity and action paradigm.  Paradigmatic ecumenism will tend to a fiercer but idea-generating debate. This pluralistic approach will give more engaged practical research representing more sustainable societies and businesses. ECKM is on the road to include more pluralistic perspectives upon sustainability, value creation, gender issues, and the design of future knowledge work. There is a critical openness toward these issues making ECKM 2020 a more relevant conference than the ECKM conferences in 2017, 2018, and 2019. The 2020 conference more open up for reflections, dialogues, and criticism upon existing problems and knowledge asking about what is the adequate actual KM solutions.
Peran Guru Sekolah Dasar Dalam Menerapkan Pembelajaran Di Tengah Pandemi Covid-19 Di Wilayah Tertinggal, Terluar, Dan Terjauh (3T)
Authors: Pulung Firdaus Sattu , Mallisa’ Ricky
Published: December 2021

The remaining, outer and farthest areas is a minimal area of its effectiveness of education, this is due to lack of educational facilities and infrastructure. Covid-19 pandemic is currently a very serious barrier for education conditions in the 3T region. So how is the teacher involved in finding solutions to the current pandemic problem? Teacher creativity will help the children of the nation remain in its education at the Covid-19 pandemic in a new teaching technique. The research methodology in this writing uses qualitative research methods with a descriptive approach. It will analyze and analyze the various conditions and situations of some of the data gathered in the observations. This method will also focus on to describe the circumstances that are transparently specifically and in-depth. As for the findings in writing are describing the importance of education in the 3T stake, discovering the impact of a pandemic against education in the 3T stake, and how teachers and governments continue to run the study in the middle of the Covid-19. The role of elementary school teachers creativity is the solution to the learning process at the Covid-19 pandemic in the outmost and furthest reaches of the county
Wilayah tertinggal, terluar dan terjauh merupakan wilayah yang masih minim tingkat efektifitas pendidikannya, hal ini disebabkan kurangnya sarana dan prasarana pendidikan. Pandemi Covid-19 saat ini menjadi hambatan yang sangat serius bagi kondisi pendidikan di wilayah 3T tersebut. Maka bagaimana peran guru dalam mencari solusi akan masalah di tengah pandemi saat ini? kreatifitas guru akan menolong anak-anak bangsa untuk tetap terlayani pendidikannya di tengah pandemi Covid-19 dalam teknik pengajaran yang baru. Metodologi penelitian dalam tulisan ini menggunakan metode penelitian kualitatif dengan pendekatan deskriptif. Metode ini akan menganalisis, menggambarkan dan menyimpulkan berbagai kondisi serta situasi dari beberapa data yang dikumpulkan dalam pengamatan. Metode ini pun lebih akan memfokuskan untuk mendeskripsikan keadaan yang terjadi secara transparan, spesifik dan mendalam. Adapun temuan-temuan dalam penulisan ialah menguraikan pentingnya pendidikan dalam wilayah 3T, menemukan dampak pandemi terhadap pendidikan di wilayah 3T, dan bagaimana peran guru serta pemerintah tetap menjalankan pembelajaran di tengah pandemi Covid-19. Peran kreatifitas guru sekolah dasar adalah solusi penerapan proses pembelajaran di tengah pandemi Covid-19 di wilayah tertinggal, terluar dan terjauh.
Visual disturbance as primary symptom of pituitary apoplexy in pregnancy
Authors: Ibrahim Norazlida , Raja Omar Raja Norliza Binti , Bastion Mae-Lynn Catherine
Published: December 2021

Pituitary apoplexy in pregnancy is a potentially fatal condition caused by acute ischaemic infarction or haemorrhage of pre-existing pituitary adenoma or within a physiologically enlarged pituitary gland. It has a wide spectrum of clinical presentations ranging from a mild headache to sudden collapsed. Here, we report a life-threatening case of pituitary apoplexy in a non-functioning pituitary macroadenoma occurring during pregnancy that presented with bilateral blurring of vision. Visual field showed bitemporal superior quadrantanopia. Urgent non-contrast brain MRI revealed an acute expansion of a hemorrhagic pituitary lesion complicated with local compression to the optic chiasm. The patient underwent an uneventful right supraorbital craniotomy and excision of the tumour under general anaesthesia with no foetal loss. The repeated visual field at 2 weeks after surgery showed recovering visual field defect. Hence, early neurosurgical intervention is advisable to prevent mortality and morbidity due to permanent visual field loss.
Scedosporium scleritis following pterygium excision with conjunctival autograft
Authors: Li Ye , McKelvie James , Fairley Cliff , McLintock Cameron
Published: December 2021

A 67-year-old female presented 6 months following left pterygium surgery with autoconjunctival graft with presumed episcleritis. Following a trial of topical dexamethasone, she returned with pain, reduced vision, and a donor-site scleral nodule. MRI orbits demonstrated scleritis; oral prednisolone was commenced for presumed immune-mediated scleritis. Ten days later, vision reduced to light-perception with significant vitritis overlying a subretinal lesion associated with the donor site. Vitreous tap cultured Scedosporium aurantiacum. Treatment consisted of vitrectomy, scleral debridement with corneal patch graft, with both systemic and intravitreal voriconazole. Further scleral debridement was attempted but unable to be completed due to its posterior extent. As repeat MRI orbits showed persistent active scleritis in proximity to the optic nerve which posed a risk of meningitis, a decision was made for enucleation. This case highlights the difficulties in distinguishing between infectious and autoimmune scleritis, and the importance of excluding infection, particularly in eyes with prior surgery.
Cosmetic contact lenses: beauty can be blinding
Authors: Selvaraja Nanthini , Raja Omar Raja Norliza , Silim Anhar Hafiz bin , Liza-Sharmini Ahmad Tajudin
Published: December 2021

Background: Although cosmetic contact lenses are ideally indicated for patients with corneal and iris abnormalities, they are currently fashionable among the younger generation of emmetropes to enhance their physical appearance. Cosmetic contact lens wearers carry a greater risk of microbial keratitis, even more so with counterfeit ones.Case presentation: Here, we report two cases of counterfeit cosmetic contact lens wearers with Acanthamoeba keratitis (AK) who were misdiagnosed as herpes simplex virus (HSV) keratitis.Conclusion: AK is a sight-threatening complication among contact lens wearers. Since clinically AK may masquerade as HSV, early diagnosis of AK is often delayed. As both microorganisms can mimic each other, determining the co-existence of both infections can be challenging. Delay in initiating proper treatment can lead to blinding complications.
Forecasting of Turkey’s Electrical Energy Consumption using LSTM and GRU Networks
Authors: BİŞKİN Osman Tayfun , ÇİFCİ Ahmet
Published: December 2021

Energy demand management is particularly important for developing and emerging economies. Their energy consumptions increase significantly, depending on their growing economies. As a result of Turkey’s rapid economic and population growth, electricity consumption is increasing. Electricity consumption forecasting plays an essential role for energy suppliers, consumers, and policy makers. Therefore, using models to accurately and reliably forecast future electricity consumption trends is a key issue for the planning and operation of electric power systems. This paper focused on forecasting electrical energy consumption by utilizing deep learning methods, i.e., Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU) models, for time series data. One-hour and three-hour ahead forecasting are accomplished by using a historical dataset of electrical energy consumption in Turkey. The comparison results show that the GRU model is slightly better than that of the LSTM. Our study also reveals that one-hour ahead predictions are more accurate than three-hour ahead predictions.
Analysis of The Influence Of Firm Size, Liquidity, Leverage And Profitability On Firm Value Consumer Goods Industry On Stock Exchange Indoonesia (IDX)
Authors: Perangin-angin Naca , Ginting Ella Silvana
Published: December 2021

This study aims to determine and analyze the effect of firm size, liquidity, leverage and profitability on firm value, either simultaneously or partially in consumer goods industry companies on the Indonesia Stock Exchange (IDX) in the period 2014 to 2017. The population in this study is industrial goods companies. consumption on the Indonesia Stock Exchange (IDX) during the 2014-2017 period, amounting to 45 companies. Sample selection using purposive sampling technique. The number of samples obtained as many as 25 companies. The data analysis method used is panel data regression analysis with the Eviews 8 application. Simultaneously, firm size, liquidity, leverage and profitability have a significant effect on firm value. Partially, firm size, leverage and profitability have a significant effect on firm value, while liquidity has no effect on firm value.
A Smart Socket Equipped With IoT Technologies for Energy Management of Electrical Appliances
Authors: Elorbany Khaled , Bayılmış Cüneyt , Balta Seda
Published: December 2021

Internet of Things is an ecosystem of devices that are capable of detecting, processing and communicating with the Internet. Recently, the Internet of Things applications that make our business and social life easier are spreading rapidly. In this study, a software controlled smart plug equipped with the Internet of Things technologies for energy management of electrical appliances is presented. The usage of the presented smart plug provides many benefits for users such as on-off control over the internet, real-time and past monitoring of energy consumption, awareness of planned electrical outages, overcurrent protection defitinition as software etc.. Generally, the implemented system consists of smart socket including Wemos D1 microcontroller equipped with ESP8266 Wi-Fi module, ACS712 current sensor and role, mobile application and Firebase cloud platform.
Rain Rate and Rain Attenuation Prediction For Satellite Communication in Ku Band Beacon Over TURKSAT Golbası
Authors: Kaya Yasin Burak , Yılmaz Ümit Cezmi
Published: December 2021

Satellite beacon is a signal which does not modulated and sent to ground in constant frequency with a specific designed power. Beacon signals are used by ground station antenna users track the satellite easily. The satellite operators generally choose beacon signal at Ku Band frequency band since this band is more resistant to rain attenuation. Ku band satellite system performance describe by the contribute of rainfall rate and rain attenuation. This paper includes the comparison of rain attenuation in Ku band beacon and taking as a reference ITU – 838 model caused by rain fall rate in TURKSAT premises. It is compared by calculating that how signals affected from rain between 2012, and 2019 observations for a TURKSAT satellite and in this measurement both theoretical formula and data are used.