bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of COVID-19 pandemic on mental health: An international study
Authors: Gloster Andrew T. , Lamnisos Demetris , Lubenko Jelena , Presti Giovambattista , Squatrito Valeria , Constantinou Marios , Nicolaou Christiana , Papacostas Savvas , Aydın Gökçen , Chong Yuen Yu , Chien Wai Tong , Cheng Ho Yu , Ruiz Francisco J. , Garcia-Martin Maria B. , Obando-Posada Diana P. , Segura-Vargas Miguel A. , Vasiliou Vasilis S. , McHugh Louise , Höfer Stefan , Baban Adriana , Dias Neto David , Nunes da Silva Ana , Monestès Jean-Louis , Alvarez-Galvez Javier , Paez-Blarrina Marisa , Montesinos Francisco , Valdivia-Salas Sonsoles , Ori Dorottya , Kleszcz Bartosz , Lappalainen Raimo , Ivanović Iva , Gosar David , Dionne Frederick , Merwin Rhonda M. , Kassianos Angelos P. , Karekla Maria
Published: December 2020

Background

The COVID-19 pandemic triggered vast governmental lockdowns. The impact of these lockdowns on mental health is inadequately understood. On the one hand such drastic changes in daily routines could be detrimental to mental health. On the other hand, it might not be experienced negatively, especially because the entire population was affected.

Methods

The aim of this study was to determine mental health outcomes during pandemic induced lockdowns and to examine known predictors of mental health outcomes. We therefore surveyed n = 9,565 people from 78 countries and 18 languages. Outcomes assessed were stress, depression, affect, and wellbeing. Predictors included country, sociodemographic factors, lockdown characteristics, social factors, and psychological factors.

Results

Results indicated that on average about 10% of the sample was languishing from low levels of mental health and about 50% had only moderate mental health. Importantly, three consistent predictors of mental health emerged: social support, education level, and psychologically flexible (vs. rigid) responding. Poorer outcomes were most strongly predicted by a worsening of finances and not having access to basic supplies.

Conclusions

These results suggest that on whole, respondents were moderately mentally healthy at the time of a population-wide lockdown. The highest level of mental health difficulties were found in approximately 10% of the population. Findings suggest that public health initiatives should target people without social support and those whose finances worsen as a result of the lockdown. Interventions that promote psychological flexibility may mitigate the impact of the pandemic.
Economic impact of the first wave of the COVID-19 pandemic on acute care hospitals in Japan
Authors: Shin Jung-ho , Takada Daisuke , Morishita Tetsuji , Lin Hueiru , Bun Seiko , Teraoka Emi , Okuno Takuya , Itoshima Hisashi , Nagano Hiroyuki , Kishimoto Kenji , Segawa Hiromi , Asami Yuka , Higuchi Takuya , Minato Kenta , Kunisawa Susumu , Imanaka Yuichi
Published: December 2020

Background

In response to the coronavirus diseases 2019 (COVID-19) pandemic, the Japanese government declared a state of emergency on April 7, 2020. Six days earlier, the Japan Surgical Society had recommended postponing elective surgical procedures. Along with the growing public fear of COVID-19, hospital visits in Japan decreased.

Methods

Using claims data from the Quality Indicator/Improvement Project (QIP) database, this study aimed to clarify the impact of the first wave of the pandemic, considered to be from March to May 2020, on case volume and claimed hospital charges in acute care hospitals during this period. To make year-over-year comparisons, we considered cases from July 2018 to June 2020.

Results

A total of 2,739,878 inpatient and 53,479,658 outpatient cases from 195 hospitals were included. In the year-over-year comparisons, total claimed hospital charges decreased in April, May, June 2020 by 7%, 14%, and 5%, respectively, compared to the same months in 2019. Our results also showed that per-case hospital charges increased during this period, possibly to compensate for the reduced case volumes. Regression results indicated that the hospital charges in April and May 2020 decreased by 6.3% for hospitals without COVID-19 patients. For hospitals with COVID-19 patients, there was an additional decrease in proportion with the length of hospital stay of COVID-19 patients including suspected cases. The mean additional decrease per COVID-19 patient was estimated to 5.5 million JPY.

Conclusion

It is suggested that the hospitals treating COVID-19 patients were negatively incentivized.
Exploring the determinants of synergetic development of social organizations participating in home-based elderly care service: An SEM method
Authors: Shao Qiuhu , Yuan Jingfeng , Ma Junwei , Ding Hongxing , Huang Wei
Published: December 2020

The current aging service industry has problems in meeting the ever-increasing demand for the home-based elderly care service (HECS). Social organizations participating in HECS seems to be a promising way to address these problems but also raises new challenges, like uncoordinated cooperation among stakeholders, which could lead to low management efficiency and low service quality. However, Synergetic development can be promising to enhance the participation of social organizations and to improve social welfare. This study introduces a conceptual model to explore relationships between five determinants and synergetic development of social organizations participating in HECS. A structural equation model (SEM) based on questionnaire survey is used as a test methodology. The results indicated that stakeholder engagement plays a critical role in synergetic development in HECS, resource allocation can only be improved by institutional climate, and supervision capacity cannot facilitate information sharing. This study provides effective strategies and directions for the improvement of home-based elderly care services.
Comparison of methods for texture analysis of QUS parametric images in the characterization of breast lesions
Authors: Osapoetra Laurentius O. , Chan William , Tran William , Kolios Michael C. , Czarnota Gregory J.
Published: December 2020

Purpose

Accurate and timely diagnosis of breast carcinoma is very crucial because of its high incidence and high morbidity. Screening can improve overall prognosis by detecting the disease early. Biopsy remains as the gold standard for pathological confirmation of malignancy and tumour grading. The development of diagnostic imaging techniques as an alternative for the rapid and accurate characterization of breast masses is necessitated. Quantitative ultrasound (QUS) spectroscopy is a modality well suited for this purpose. This study was carried out to evaluate different texture analysis methods applied on QUS spectral parametric images for the characterization of breast lesions.

Methods

Parametric images of mid-band-fit (MBF), spectral-slope (SS), spectral-intercept (SI), average scatterer diameter (ASD), and average acoustic concentration (AAC) were determined using QUS spectroscopy from 193 patients with breast lesions. Texture methods were used to quantify heterogeneities of the parametric images. Three statistical-based approaches for texture analysis that include Gray Level Co-occurrence Matrix (GLCM), Gray Level Run-length Matrix (GRLM), and Gray Level Size Zone Matrix (GLSZM) methods were evaluated. QUS and texture-parameters were determined from both tumour core and a 5-mm tumour margin and were used in comparison to histopathological analysis in order to classify breast lesions as either benign or malignant. We developed a diagnostic model using different classification algorithms including linear discriminant analysis (LDA), k-nearest neighbours (KNN), support vector machine with radial basis function kernel (SVM-RBF), and an artificial neural network (ANN). Model performance was evaluated using leave-one-out cross-validation (LOOCV) and hold-out validation.

Results

Classifier performances ranged from 73% to 91% in terms of accuracy dependent on tumour margin inclusion and classifier methodology. Utilizing information from tumour core alone, the ANN achieved the best classification performance of 93% sensitivity, 88% specificity, 91% accuracy, 0.95 AUC using QUS parameters and their GLSZM texture features.

Conclusions

A QUS-based framework and texture analysis methods enabled classification of breast lesions with >90% accuracy. The results suggest that optimizing method for extracting discriminative textural features from QUS spectral parametric images can improve classification performance. Evaluation of the proposed technique on a larger cohort of patients with proper validation technique demonstrated the robustness and generalization of the approach.
Modeling intra-mosquito dynamics of Zika virus and its dose-dependence confirms the low epidemic potential of Aedes albopictus
Authors: Lequime Sebastian , Dehecq Jean-Sébastien , Matheus Séverine , de Laval Franck , Almeras Lionel , Briolant Sébastien , Fontaine Albin
Published: December 2020

Originating from African forests, Zika virus (ZIKV) has now emerged worldwide in urbanized areas, mainly transmitted by Aedes aegypti mosquitoes. Although Aedes albopictus can transmit ZIKV experimentally and was suspected to be a ZIKV vector in Central Africa, the potential of this species to sustain virus transmission was yet to be uncovered until the end of 2019, when several autochthonous transmissions of the virus vectored by Ae. albopictus occurred in France. Aside from these few locally acquired ZIKV infections, most territories colonized by Ae. albopictus have been spared so far. The risk level of ZIKV emergence in these areas remains however an open question. To assess Ae. albopictus’ vector potential for ZIKV and identify key virus outbreak predictors, we built a complete framework using the complementary combination of (i) dose-dependent experimental Ae. albopictus exposure to ZIKV followed by time-dependent assessment of infection and systemic infection rates, (ii) modeling of intra-human ZIKV viremia dynamics, and (iii) in silico epidemiological simulations using an Agent-Based Model. The highest risk of transmission occurred during the pre-symptomatic stage of the disease, at the peak of viremia. At this dose, mosquito infection probability was estimated to be 20%, and 21 days were required to reach the median systemic infection rates. Mosquito population origin, either temperate or tropical, had no impact on infection rates or intra-host virus dynamic. Despite these unfavorable characteristics for transmission, Ae. albopictus was still able to trigger and yield large outbreaks in a simulated environment in the presence of sufficiently high mosquito biting rates. Our results reveal a low but existing epidemic potential of Ae. albopictus for ZIKV, that might explain the absence of large scale ZIKV epidemics so far in territories occupied only by Ae. albopictus. They nevertheless support active surveillance and eradication programs in these territories to maintain the risk of emergence to a low level.
A geometria que Almada leu
Authors: Freitas Pedro , Palmeirim Simão
Published: December 2020

O presente artigo revela novos dados atinentes à pesquisa de Almada Negreiros sobre arte e  geometria. A partir de vários livros da biblioteca pessoal do autor, um manuscrito e um desenho, até hoje inéditos, reúnem-se uma série de novas conclusões a propósito dos referentes de Almada. Os autores que o marcaram, as imagens que cita explicitamente e até relações pessoais com outros autores, servem de base para uma melhor compreensão do percurso da sua investigação geométrica. Este novo conhecimento contribuirá ainda para datações precisas de múltiplas obras do autor.
Colonización y emigración en Pax Iulia
Authors: Ortiz Córdoba José
Published: December 2020

En este trabajo estudiamos las dinámicas de movilidad existentes en la colonia Pax Iulia (Beja, Portugal) tomando como base la documentación epigráfica de la ciudad. Partiendo de la fundación de la colonia, abordaremos aspectos relacionados con los tipos de movilidad existentes, la procedencia de sus protagonistas y las causas que motivaron sus desplazamientos.
Los puertos asturianos en el siglo Ilustrado
Authors: García Hurtado Manuel Reyes
Published: December 2020

La España del siglo XVIII asiste al renacimiento de su política naval con la creación de importantes infraestructuras militares (arsenales) e inversión tecnológica (navíos de línea). Sin embargo, por lo que respecta al ámbito costero desde la óptica civil, el análisis de la situación de los puertos que no tenían un estricto interés estratégico y militar, es decir, los comerciales y pesqueros, se aprecia una situación en la que se alternan la destrucción y el deterioro con las reiteradas peticiones de los gremios de marineros para mejorar los muelles, diques y construcciones anexas. Podemos afirmar que la práctica totalidad de las demandas de auxilio serán atendidas administrativamente (elaboración de proyectos, planificación de impuestos para sufragar las obras, frecuentes visitas de los ingenieros militares), lo que no equivale a que se ejecutaran de manera completa, perfecta o siquiera que garantizaran una perdurabilidad en el tiempo que fuera más allá de varios lustros.
Censura e Cinema em Portugal
Authors: Seabra Jorge , Lopes Cristina
Published: December 2020

Este artigo dá a conhecer o funcionamento, organização e constituição da primeira Comissão de Censura (1945-1952), órgão criado pelo Estado Novo para fiscalizar os espetáculos em Portugal. O texto é elaborado a partir da análise das atas da sessões desta Comissão, resultando desta perquisa o conhecimento sobre o funcionamento interno, a regularidade com que reunia, constituição, critérios de censura, filmes censurados e deliberações. O estudo permite também identificar os censores, referenciá-los biograficamente, assim como os tíulos aprovados e reprovados ao longo da vigência do orgão.
Royal Court Theatre – A Casa do New Writing
Authors: Correia Ricardo
Published: December 2020

Neste artigo, iremos deter-nos na produção de peças de teatro, denominadas de new writing, com base no trabalho levado a cabo no Royal Court Theatre. Pretendemos explorar o modo como as peças de teatro de cariz político evoluíram nos conteúdos e formas, em correlação com as mudanças sociais e políticas, e como isso permitiu transitar as perceções do “político” no “teatro”. O escopo será delimitado ao período de cada direção artística, analisando a sua linhas programáticas, inserindo-as no contexto social e político que determinou a escrita e produção das peças. Essa relação permitir-nos-á selecionar as peças mais relevantes e procedimentos técnicos dominantes em cada direção artística, de modo a analisar as possibilidades da prática do new writing na criação de Teatro Político. Deste modo podemos colocar algumas questões adicionais: Como evoluíram os processos e metodologias da escrita, denominada new writing, até hoje? Analisando os seus conteúdos e formas, como refletiu e absorveu o new writing novos mecanismos, processos de pensamento e estruturas da sociedade? Existe ou não, e quais são as consequências desta dramaturgia na transformação da sociedade?
O Plano de Ações Articuladas (PAR) em Escolas do Campo na Bahia – Brasil
Authors: Santos Arlete Ramos dos
Published: December 2020

Este artigo apresenta o resultado parcial de um projeto de pesquisa em andamento que tem como objetivo analisar o impacto das políticas públicas educacionais que compõe o Plano de Ações Articuladas – PAR em três municípios baianos, a saber: Vitória da Conquista, Itabuna e Ilhéus. A metodologia utilizada foi qualitativa, cujos instrumentos de coleta de dados foram análise documental, entrevistas semiestruturadas e aplicação de questionários. Após as leituras e análises realizadas, constatamos que a política de Educação do Campo em Vitória da Conquista retrata a realidade nacional, com prédios escolares mal iluminados e pouco ventilados, com mobiliários velhos e estragados ou mesmo inadequados, além da dificuldade de acesso em muitas escolas da zona rural.
PERKEMBANGAN EMBRIO DAN PERFORMA AWAL LARVA TIGA SPESIES IKAN TOR INDONESIA
Authors: Cahyanti Wahyulia , Radona Deni , Kristanto Anang Hari
Published: December 2020

Tor fish is a potential local fish. It has social, economic and religious value and contains albumin which is equivalent to snake head fish. As a local fish cultivation potential, an accurate description of the early development stages of this species, will have value for ichthyologists and can facilitate cultivation efforts to increase production. This study aims to understand the embryology of three tor fish species and to determine the condition of larval performance at the beginning of hatching. The division process begins when the cell nucleus is divided into 2 blastomers, then continues to reach 32 cells in the first 10 hours after fertilization. At 10–20 hours after fertilization the eggs enter the morula, blastula and gastrula phases. After 20 hours, the organogenesis stage occurs. Tor douronensis hatched the fastest, more than 100 hours after fertilization (0.70–0.80 cm length, 0.0073 g weight and 8.40±1.83% abnormality). Tor soro over 120 hours (length 0.80–0.90 cm, weight 0.0125 g and abnormality 2.47±0.12%) and Tor tambroides above 140 hours after fertilization (length 1,00–1,09 cm, weight 0,0146 g and abnormality 2.93±0.31%). It can be concluded that there is no difference in the process of embryogenesis of the three species until the gastrula stage. The difference arises in the organogenesis phase, where the Tor douronensis organ develops most rapidly, followed by Tor soro and Tor tambroides.
KERAGAMAN DAN KEKERABATAN GENETIK GARCINIA BERDASARKAN KANDUNGAN SENYAWA BIOAKTIF DAN AKTIVITAS BIOLOGISNYA: KAJIAN IN SILICO
Authors: Mursyidin Dindin Hidayatul , Maulana Fajar Nurrahman
Published: December 2020

Garcinia, belongs to the genus Guttiferae, is a very prospective plant for development. Because of apomixis, however, this plant has a narrow genetic diversity. This study aims to determine the genetic diversity and relationships of Garcinia based on the content of bioactive compounds and its biological activities, using in silico approach. A total of 64 Garcinia species were analyzed by a multivariate method using the MVSP ver. 3.1 software. The results showed that based on these characters, Garcinia had a low (narrow) genetic diversity, with a Shannon index of 0.28. However, the xanthone, antifungal activity, and leaf organ are the three of Garcinia characters with a high (wide) genetic diversity. The PCA revealed that these characters are contributed positively to this genetic diversity. The UPGMA analysis also revealed that this germplasm is divide into six main clusters, where the fifth is the largest (53 species). The farthest relationship is shown by G. hanburyi and G. cylindrocarpa, as well as G. bancana and G. excavata, at a coefficient of 0.54. In this case, G. mangostana, the most popular species of Garcinia, has the closest relationship with G. wightii at a coefficient of 0.87, and fartest to G. cylindrocarpa. This information might be valuable in supporting the preservation and breeding programs of Garcinia in Indonesia, particularly for parental selection in the development of superior cultivars.
ANTIFUNGAL EXTRACT ACTIVITYOF ISOLATE Nocardia sp. ATS-4.1 AGAINST Candida albicans InaCC-Y116
Authors: Abdullah Abdullah , Rahmawati Rahmawati , Kurniatuhadi Rikhsan
Published: December 2020

Candida albicans is a microorganism that knows as caused of candidiasis. Nocardia is known to have the ability to produce antifungal bioactive compounds to overcome cases of fungal infections. This research aims to determine the presence of antifungal activity and the good concentration from crude extract of Nocardia sp. ATS-4.1 to inhibit C. albicans InaCC-Y116 and. Antifungal activity test of isolate Nocardia sp. ATS-4.1 was performed using a well diffusion method on Mueller Hinton Agar (MHA) media with a concentration of 92%, 94%, 96%, 98%, 100% and nystatin (positive control) 0,0125% and DMSO 10% (negative control) incubated at 37 ᵒC for 24-48 hours. The results showed that the extract of Nocardia sp. ATS-4.1 can inhibit the growth of C. albicans. Nocardia sp. ATS-4.1 isolate extract concentration of 96% with a resistance diameter of 13.63 ± 0.53 mm with a strong category against the growth of  C. albicans InaCC-Y116.
HUBUNGAN PANJANG-BOBOT, FAKTOR KONDISI DAN KARAKTERISTIK BIOMETRIK IKAN LELE AFRIKA (Clarias gariepinus) ALBINO ASAL THAILAND
Authors: Iswanto Bambang , Suprapto Rommy , Suwargono Pudji
Published: December 2020

The African catfish (Clarias gariepinus) has been introduced several times to Indonesia, including from Thailand (Paiton strain). The breeding of Paiton strain resulted in albino individuals. The present study aimed to investigate the length-weight relationship, condition factor and biometric characteristic of those albinos. Five pairs of each albino and normal coloured Paiton African catfish were artificially bred. Larvae and juveniles from each pair were reared one month of larval rearing phase, one month of nursery phase and two months of grow-out phase, then the total length and body weight were measured for length-weight relationship and condition factor analysis, finally the biometric was characterized. The present study revealed that the relationship between total length (L) and body weight (W) of the Paiton African catfish was positive allometric (W = 0.0038L3.23 in the albino and W = 0.0027L3.27 in the normal coloured one). The albino Paiton African catfish was more rotund (condition factor of 0.79±0.07) than the normal colored one (condition factor of 0.68±0.06). Biometrically, the albino Paiton African catfish has a bigger head portion and fewer dorsal and anal fin rays than those of the normal coloured one. Despite the colour difference, the albino and normal coloured Paiton African catfish were morphologically different.
SELECTIVE ISOLATION OF Dactylosporangium AND Micromonospora FROM THE SOIL OF KARST CAVE OF SIMEULUE ISLAND AND THEIR ANTIBACTERIAL POTENCY
Authors: Putri Ade Lia , Sumerta I Nyoman
Published: December 2020

Karst is a unique ecosystem that consists of a thin soil layer on the carbonate rocks. It has a diverse microorganism, especially actinomycetes group, which might potentially produce beneficial secondary metabolites that remain unknown. In this study, we were interested in isolating Dactylosporangium and Micromonospora that have been potentially reported as antibiotic sources. We used two methods using the chemical germicide (pretreatment 1.5% phenol) compared with the SDS-YE (0.05% SDS pretreatment). Thirty-nine isolates actinomycetes were successfully isolated from two samples of the karst cave soils. Thirteen isolates were obtained by using the germicide chemical method and closely related to the genera of Dactylosporangium and Micromonospora. On the other hand, the SDS-YE grew twenty-six isolates which closely related to 11 genera of actinomycetes (Catenulispora, Nocardia, Rhodococcus, Ornithinimicrobium, Catellatospora, Dactylosporangium, Micromonospora, Streptacidiphilus, Streptomyces, Nonomuraea, and Streptosporangium). These results suggest that 1.5% of phenol pretreatment could preserve the genera of Dactylosporangium and Micromonospora, while the Streptomyces and other rare actinomycetes were killed. Among all isolates, only 7 showed the antibacterial activity on tested bacteria. Even though the antibacterial activity of those isolates was not high, the isolation of actinomycetes from a specific substrate is necessary to be conducted on exploring the richness of our natural resources.
UJI TOKSISITAS ORAL REPEATED DOSE FILTRAT BUAH LUWINGAN (Ficus hispida L.f.) MENGGUNAKAN MODEL TIKUS (Rattus norvegicus Berkenhout, 1769) GALUR WISTAR
Authors: Fitria Laksmindra , Suranto Rosita Dwi Putri , Utami Indira Diah , Puspitasari Septy Azizah
Published: December 2020

Hairy fig is a tropical medium-sized tree that produces abundant fruits throughout the year. In some Asian countries, the fruits are consumed as traditional medicine and food ingredient. Meanwhile in Indonesia there has not been much use. A series of oral toxicity tests must be conducted to study the possibility of toxic effects and the safety before further exploration. Oral single dose toxicity study of young and ripe hairy fig fruit filtrate has been carried out. Results demonstrated no observed adverse effect level (NOAEL) at a concentration of 100%. This study was aimed to continue the oral toxicity test with repeated dose following standard toxicity procedure by OECD Test Guideline No. 407 with some modifications. Parameters observed were mortality, sublethal effects consisted of physical conditions and behavior, body weight, core temperature, complete blood count, as well as liver, heart, and renal functions by measuring ALT, AST, and creatinine, respectively. Sampling points on day 0, 7, 14, 21, and 28. Results showed no observed adverse effect level (NOAEL) in both young and ripe fruits filtrate at a concentration of 100% however with a tendency to cause anemia and associate with renal dysfunction. Therefore, it is necessary to perform similar method of toxicity test but with lower concentration, also continue with further toxicity tests (subchronic and chronic periods).
ANALISIS GAMBAR DIGITAL UNTUK SERANGAN PENYAKIT LAYU FUSARIUM DI PISANG MENGGUNAKAN IMAGEJ
Authors: Zaelani Ahmad , Kurniajati Wulan S. , Herlina Herlina , Martanti Diyah , Ahmad Fajarudin
Published: December 2020

Fusarium wilt disease caused by Fusarium oxysporum f. sp. cubense is the most dangerous disease in banana. Recently, development of new banana varieties has been the most effective ways to prevent this disease. To develop the resistant banana, Fusarium severity analysis is the important part in the process of Fusarium disease assessment to quantify the disease severity.. The objective of this study was to develop digital image analysis method for Fusarium severity analysis by using software ImageJ. Pisang Ambon and Pisang Cavendish were used as plant material due to its susceptibility of the disease. Fusarium severity analysis performed as follows (i) Photographing of Fusarium-infected rhizom (ii) Digital image analysis by using ImageJ of the taken image. The analysis result was percentage area of Fusarium-infected rhizom, represented by necrosis and discoloration. The percentage of rhizome infected by Fusarium- of Pisang Ambon#1 was 50.10%, while Pisang Ambon#2 was 22.23%. In addition, the percentage of Pisang Cavendish#1 and Pisang Cavendish#2 was 28.52% and 39.5%, respectively. Digital image analysis of the sample showed consistent result and more objective. Development of the digital image analysis is not only useful for Fusarium severity analysis in Banana, but also for other crops.
MEKANISME RESPON TANAMAN TERHADAP CEKAMAN KEKERINGAN
Authors: Rini Dwi Setyo , Budiarjo Budiarjo , Gunawan Indra , Agung Radi Hidayat , Munazar Rina
Published: December 2020

Drought stress is the major abiotic stress affecting plant growth and productivity. This review emphasizes the discussion of plant response mechanisms when experiencing drought stress. The plant develops the strategies under water deficit conditions in the form of drought escape, drought avoidance, drought tolerance, or a combination of those strategies. Drought stimulates a wide variety of plant adaptation by changes in morphological, physiological, biochemical, and molecular levels. This mechanism is organized by a complex signaling network system comprising of signal perception, signal transduction pathway, and the regulation of drought-responsive genes expression.
Face Counting and Mask Detection using Deep Learning
Authors: Prabu Janani , Saranesh Sai , Ajitha Dr.S.
Published: December 2020

Face is one among the foremost important human's biometrics which is used frequently in every day human communication and due to some of its unique characteristics plays a major role in conveying identity and emotion. So far numerous methods have been proposed for face recognition, but it's still remained very challenging in real world applications and up to date; there is no technique which equals human ability to recognize faces despite many variations in appearance that the face can have in a scene and provides a strong solution to all situations.
Modelo Linear de Mistura Espectral: Conceitos Teóricos, Algoritmos e Aplicações em Estudos na Amazônia Legal
Authors: Shimabukuro Yosio Edemir , Dutra Andeise Cerqueira , Arai Egídio
Published: December 2020

Este trabalho apresenta uma revisão sobre o Modelo Linear de Mistura Espectral e suas aplicações na Amazônia Legal. Os estudos sobre mistura espectral iniciaram na década de 1970, motivada pelo problema na estimativa de áreas obtida por interpretação automática. O pixel era classificado ou não baseado na máxima probabilidade desse pixel pertencer a determinada classe, superestimando ou subestimando esta classe de acordo com a decisão tomada. Surgiu então o interesse no estudo da mistura espectral dentro do pixel. A resposta de cada pixel pode ser considerada como uma combinação linear das respostas espectrais de cada componente que está na mistura desse pixel. Dessa forma, conhecendo-se as respostas espectrais dos componentes, podemos obter as proporções desses componentes (imagens fração). Neste trabalho são apresentados os conceitos teóricos que motivaram o desenvolvimento desse modelo, e são descritos os algoritmos (Mínimos Quadrados com Restrição, Mínimos Quadrados Ponderados, Principais Componentes) desenvolvidos na década de 1980. Com a disponibilidade desses algoritmos em softwares de processamento de imagens digitais na década de 1990, aumentou o número de trabalhos que fazem uso dessa técnica no Brasil e no mundo. As imagens fração foram utilizadas para automatizar o Projeto PRODES (Monitoramento do Desmatamento da Floresta Amazônica Brasileira por Satélite) que foi o primeiro projeto operacional sistemático de Sensoriamento Remoto orbital. A seguir é apresentada a utilização das imagens fração em estudos realizados na Amazônia brasileira. Além disso, é apresentada uma perspectiva de uso das imagens fração em estudos globais. Em conclusão, o Modelo Linear de Mistura Espectral tem contribuído para o desenvolvimento de várias pesquisas e aplicações de Sensoriamento Remoto devido as suas características de redução de dados e por realçar os alvos de interesse nas imagens.
Projeto "Aves do Campus"
Authors: Silva Alysson Rodrigo Fonseca e , Ribeiro Letícia Santos , Gomides Clécio Eustáquio , Lobato Debora Nogueira Campos
Published: December 2020

Devido à diversidade de espécies de aves existentes nas cidades, suas funções ecossistêmicas e a necessidade de sua conservação, torna-se importante que a sociedade conheça melhor esse grupo e contribua para a sua preservação. Este trabalho constou de um relato de experiência e teve como objetivo elaborar um catálogo contendo o registro fotográfico e a identificação da avifauna do campus da Universidade do Estado de Minas Gerais (UEMG) – Unidade de Divinópolis; realizar palestras e exposições fotográficas das aves registradas na própria unidade e em escolas públicas e, ainda, oferecer minicurso sobre fotografia de aves. Os registros fotográficos possibilitaram a identificação de 90 espécies. A exposição fotográfica e palestras realizadas nas escolas possibilitaram a participação de 313 estudantes do ensino fundamental e médio. Na universidade, a palestra e a exposição fotográfica contaram com 60 e 445 participantes, respectivamente, entre discentes, docentes e funcionários. Foi também realizado o minicurso “Introdução à observação e fotografia de aves”, que contou com a presença de 17 participantes. Aliando conhecimento com uso de tecnologia, o projeto atingiu um público de diversas faixas etárias, propiciando novos conhecimentos e despertando interesse científico, especialmente no que se refere à biodiversidade da avifauna local.
Práticas colaborativas na extensão universitária
Authors: Heleno Claudia Diniz de Moraes , Azevedo Ana Paula Zaikievicz , Dias André da Silva
Published: December 2020

O presente relato tem como objetivo apresentar reflexões acerca das práticas colaborativas interdisciplinares que ocorrem em um projeto de extensão da Universidade Católica Dom Bosco (UCDB) em Campo Grande-MS. Para tanto, ao longo do texto, tecemos algumas discussões sobre conceitos de práticas colaborativas e contextualizamos as ações desenvolvidas no projeto entre os cursos de graduação em Educação Física, Pedagogia, Agronomia e Medicina Veterinária. O projeto “Criança Ativa” é desenvolvido há 19 anos nas dependências da instituição, no contraturno escolar, nos períodos matutino e vespertino, três vezes por semana, e atualmente atende cerca de 70 crianças e adolescentes com idade entre seis e catorze anos. São oportunizadas vivências de atividades lúdicas, culturais, esportivas, artísticas, literárias, de cuidados com o meio ambiente e com os animais. Acreditamos que, por meio de práticas pedagógicas colaborativas e interdisciplinares, o aprendizado pode ocorrer de forma mais prazerosa e significativa tanto para acadêmicos extensionistas quanto para crianças e adolescentes participantes do projeto. Assim, entendemos que as práticas colaborativas interdisciplinares, quando desenvolvidas na prática, possibilitam um trabalho mais dinâmico, envolvente e com eficácia.
Temas aristotélicos en La determinación autoperceptiva de la Nada (1932), de Nishida Kitarô
Authors: Jacinto Zavala Agustin
Published: December 2020

Temas aristotélicos en La determinación autoperceptiva de la Nada (1932), de Nishida Kitarô

Resumen: El texto que ahora presento es un examen del diálogo continuado de Nishida con Aristóteles según lo podemos ver en el volumen VI de las Obras completas de Nishida Kitarô. El resultado nos permite ver la especial atención que en 1932 Nishida presta a cinco temas básicos que se desarrollan en 16 puntos de la siguiente manera: la expresión (1-3), la autopercepción (4-7), la base del conocimiento (8-11), los universales (12-14) y dos importantes aspectos de la intuición (15-16). En este sentido, los contenidos del diálogo nishidiano con Aristóteles en el volumen VI de las Obras completas de Nishida Kitarô, nos remiten al tema del conocimiento.

Palabras clave: Aristóteles. Nishida. Diálogo. Autopercepción. Conocimiento. Universal.

Some aspects of Nishida’s dialogue with Aristotle

Abstract: My present text is a study of the continuous dialogue of Nishida with Aristotle as can be seen in volume VI of his Complete Works. As a result, we can see the special attention that in 1932 Nishida gave to five basic themes. I have presented their content under sixteen headings as follows, expression (1-3), self-perception (4-7), the basis of knowledge (8-11), universals (12-14), and two important aspects of intuition (15-16).As a result, we can see that the contents of Nishida’s dialogue with Aristotle in volume VI of his Complete Works, primarily touches on the theme of knowledge.

Keywords: Aristotle. Nishida. Dialogue. Self perception. Knowledge. Universal.

Temas aristotélicos em A determinação autoperceptiva do nada (1932), de Nishida Kitarô

Resumo: O texto que apresento agora é um exame do diálogo contínuo de Nishida com Aristóteles, como podemos ver no Volume VI das Obras Completas de Nishida Kitarô. O resultado nos permite ver a atenção especial que em 1932 Nishida presta a cinco temas básicos que são desenvolvidos em 16 pontos da seguinte forma: expressão (1-3), autopercepção (4-7), base de conhecimento (8). -11), os universais (12-14) e dois aspectos importantes da intuição (15-16). Nesse sentido, o conteúdo do diálogo nishidiano com Aristóteles, no volume VI das obras completas de Nishida Kitarô, remete-nos à questão do conhecimento.

Palavras-chave: Aristótles. Nishida. Diálogo. Autopercepção. Conhecimento.Universal.

Data de registro: 29/07/2020

Data de aceito: 21/10/2020
Apresentação - Dossiê Perspectivas da Filosofia Intercultural
Authors: Florentino Neto Antonio , Machado Lucas Nascimento
Published: December 2020

Não há mais como pensar as questões filosóficas fundamentais, e o modo com que elas afetam a nossa compreensão do nosso mundo, de seus problemas e de seus dilemas, sem pensar a filosofia para além de uma visão eurocêntrica e colonialista da mesma. É com essa perspectiva em mente que esse dossiê foi feito, visando mostrar como uma abordagem intercultural na filosofia é fundamental para se refletir sobre questões fundamentais da atualidade, tais como a relação entre tradição e modernidade na China contemporânea (questão discutida pelos artigos de Florentino, Monteiro e Xiaodong); e o papel da transdisciplinariedade na constituição de uma concepção de conhecimento e de um ensino do mesmo que fujam à hiperespecialização e fragmentação modernas (que é discutido pelo artigo de Gibbs). Além disso, o dossiê também conta com artigos que mostram como fazer filosofia interculturalmente não significa negar o papel, a relevância ou a complexidade da filosofia “ocidental” e de suas ramificações; pelo contrário, significa tanto entender bem onde tradições não-ocidentais de filosofia, como as da Escola de Kyoto, têm uma relação central e indispensável com alguns dos principais pilares da filosofia “ocidental” (tal como mostra o artigo de Zavala), como também compreender o quanto a própria filosofía ocidental deve ser estudada e compreendida em toda a sua complexidade e profundidade, a fim de que se possa de fato não apenas pensar contra ela, onde ela se mostra “monológica”, mas também reconhecer o quanto ela é em si mesma plural, complexa e diversa, contendo tensões e dissidências em si mesma que permitem pensar, com ela, para além dela (algo para que o artigo de Müller é de especial importância, ao expor de maneira detalhada e cuidadosa o modo com que Hegel simultáneamente adere e crítica ao mesmo tempo o projeto político moderno de fundar a sociedade na vontade livre humana). Tendo essa visão geral da proposta deste dossiê em mente, torna-se pertinente agora esmiuçar mais detalhadamente a contribuição individual de cada artigo para esta coletânea.
Seven Student Motivations for Choosing the Department of Early Childhood Teacher Education in Higher Education
Authors: Elkhaira Indana , Audina B.P. Nidya , Engkizar Engkizar , K. Munawir , Arifin Zainal , Asril Zainal , Syafril Syafrimen , Brita Deborah Mathew Ingrid
Published: December 2020

Choosing a career as an Early Childhood Education Teacher is both challenging and joyful.  Not everyone is interested in this profession except for those who have strong motivation. This study aims to identify students’ exact motivation to select the Early Childhood Education Department at Public University. This study uses combined qualitative and quantitative methods (exploratory mixed methods design). Sources of qualitative data were taken from twenty informants through in-depth interviews and analyzed using NVivo 10 analysis software, while sources of quantitative data were taken from a hundred correspondents and analyzed using SPSS 20 software. Both qualitative and quantitative data analyses showed that students have seven motivations to select the Early Childhood Education Department. Those seven motivations are: i) parents encouragement (81%); ii) job opportunities after graduation (83%); iii) loving kids (85%); iv) teaching is a noble profession (100%); self-will (70%); vi) the choice to be a teacher (76%); and vii) Early Childhood Education is not difficult, but joyful (80%). The study has successfully revealed seven students’ motivations for selecting the Early Childhood Education Department at Public University. This study’s results can be used as preliminary data for subsequent researchers to examine this problem in different contexts and issues. This study’s findings need to be continued by the next researcher by examining the correlation between motivational aspects with various other variables. However, this data can also be used as an initial reference for examining the issues and problems in different contexts.
Diagnostic Accuracy and Correlation between Double Inversion Recovery (DIR), FLAIR and T2W Imaging Sequences with EDSS in Detection of Lesions at different Anatomical Regions in MS Patients
Authors: Almutairi Abdullah Dhaifallah , Hassan Hasyma Abu , Suppiah Subapriya , Alomair Othman I , Almotairy Abdulrahim , Muslim Ali M. , Almanaa Abdullah , Mahmud Rozi
Published: December 2020

The aim of our study is to evaluate the diagnostic accuracy of double inversion recovery (DIR) in detection of multiple sclerosis (MS) lesions as well as the correlation between the expanded disability status scale (EDSS) and lesion load measurement detected by DIR, fluid attenuated inversion recovery (FLAIR) and T2 weighted imaging (T2WI) in order to reveal the essential role of DIR sequence in assessing clinical inability as a practicable experiment. A total of 97 patients were assessed on a 3T Siemens Skyra MRI scanner using DIR, FLAIR, and T2W_TSE sequences. EDSS was used to assess the physical disability in patients with MS. The diagnostic accuracy of DIR, FLAIR and T2WI sequences was also determined in different anatomical regions. Sensitivity and specificity were assessed by relative operating characteristics/ receiver operating characteristics (ROC) curve at different cut off points. Spearman correlation was applied to identify the significant relationships between the number of lesions displayed by DIR, FLAIR and T2WI at different regions and EDSS score. Our results pointed out the highest sensitivity (92.9%) and specificity (73.5%) for the number of lesions in infratentorial region at the cut-off point of 4.5 and the highest correlation between the number of lesions and EDSS was observed in infratentorial region (r= 0.584, p<0.001) for DIR sequence. According to the findings of ROC analysis, the number of lesions detected by DIR technique in the infratentorial region is the best predictor of EDSS as a gold standard. DIR can be used as a complementary technique comparing to conventional T2 and FLAIR sequences and describe physical and cognitive dysfunction as well. Due to the higher potential of the DIR sequence to reveal a greater number of MS lesions and to overcome the technical defect of conventional MRI sequences in the diagnosis of cortical lesions, it is recommended that DIR sequences be routinely added to MRI imaging protocols for patients with MS.
Advanced Loop Thermosiphon With Check Valve (ALT/CV): Thermal Performance and Behavior
Authors: Booddachan Khridsadakhon , Bhuwakietkumjohn Nipon , Parameethanuwat Thanya
Published: December 2020

Nanofluids (NFs) are an attractive alternative to traditional working fluids for thermosiphons, but the solid nanoparticles (NPs) within the NF can agglomerate and reduce the thermal performance. This study focused on clarifying the effect of a NF with surfactants on the heat transfer characteristics of an advanced loop thermosiphon with a check valve (ALT/CV). In an experiment, the ALT/CV was filled with different working fluids at filling ratios of 30%, 50%, and 80% with respect to the evaporator volume. Heat was supplied at 20%, 40%, 60%, 80%, and 100% of the heater output (2000 W). Five working fluids were considered: deionized (DI) water, a DI water-based NF with 0.5 wt% silver NPs, and the same NF containing 0.5, 1, and 1.5 wt% oleic acid (OA) and potassium oleate (OAK+) as surfactants. The results showed that the ALT/CV provided a better heat transfer performance than a normal thermosiphon. The maximum heat transfer rate was achieved with the NF containing 0.5 wt% silver NPs and 1 wt% OAK+. The NF containing OAK+ demonstrated a heat transfer rate approximately 80% higher than that of the DI water
Post-Impact Characteristics of a Diesel-in-Water Emulsion Droplet on a Flat Surface Below the Leidenfrost Temperature
Authors: Faik Ahmad Muneer El-Deen , Theeb Maathe Abdulwahed , Zhang Yang
Published: December 2020

Droplet impingement on solid surfaces takes place in a variety of industrial and environmental applications. However, there are still some areas that are not fully comprehended; emulsion droplet impact on a heated surface is one of these areas that require further comprehension. Hence, the present work represents an experimental exploration for spread characteristics of diesel-in-water (DW) emulsion droplet impacting a heated flat plate. Three different emulsions in which water concentration is set to 10%, 20%, and 30% of the overall emulsion content by volume have been tested in addition to the neat diesel. The temperature of the flat plate is varied over the range 20, 40, 60, and 80ºC respectively. Magnified high speed direct imaging and shadowgraphy have been used simultaneously for tracking droplet spread over the heated surface post impact. Droplet spread rate, maximum diameter, rebound height and velocity represent the main evaluated parameters. The results show that the maximum spread diameter is proportional while spread rate is inversely proportional to the increase in plate temperature for all diesel concentrations including the neat diesel. Whereas, droplet rebound height and velocity are found to be more responsive to the variation in diesel concentration than the variation in plate temperature, so they are both minimum in the case of neat diesel and are increasing by the decrease of diesel concentration in the emulsions.
Mobile-assisted language learning through learning analytics for self-regulated learning (MALLAS): A conceptual framework
Authors: Viberg Olga , Wasson Barbara , Kukulska-Hulme Agnes
Published: December 2020

Many adult second and foreign language learners have insufficient opportunities to engage in language learning. However, their successful acquisition of a target language is critical for various reasons, including their fast integration in a host country and their smooth adaptation to new work or educational settings. This suggests that they need additional support to succeed in their second language acquisition. We argue that such support would benefit from recent advances in the fields of mobile-assisted language learning, self-regulated language learning, and learning analytics. In particular, this paper offers a conceptual framework, mobile-assisted language learning through learning analytics for self-regulated learning (MALLAS), to help learning designers support second language learners through the use of learning analytics to enable self-regulated learning. Although the MALLAS framework is presented here as an analytical tool that can be used to operationalise the support of mobile-assisted language learning in a specific exemplary learning context, it would be of interest to researchers who wish to better understand and support self-regulated language learning in mobile contexts.

Implications for practice and policy:

MALLAS is a conceptual framework that captures the dimensions of self-regulated language learning and learning analytics that are required to support mobile-assisted language learning.

Designers of mobile-assisted language learning solutions using MALLAS will have a solution with sound theoretically underpinned solution.

Learning designers can use MALLAS as a guide to direct their design choices regarding the development of mobile-assisted language learning apps and services.