bluuebunny/crossref_metadata_2025 huggingface dataset:
Using Plant Proteins to Develop Composite Scaffolds for Cell Culture Applications
Authors: Jing Linzhi , Sun Jie , Liu Hang , Wang Xiang , Huang Dejian
Published: October 2020

Electrohydrodynamic printing (EHDP) is capable of fabricating scaffolds that consist of micro/nano scale orientated fibers for three-dimensional (3D) cell culture models and drug screening applications. One of the major hurdles that limit the widespread application of EHDP is the lack of diverse biomaterial inks with appropriate printability and desired mechanical and biological properties. In this work, we blended plant proteins with synthetic biopolymer poly(ε-caprolactone) (PCL) to develop composite biomaterial inks, such as PCL/gliadin and PCL/zein for scaffold fabrication through EHDP. The tensile test results showed that the composite materials with a relatively small amount of plant protein portions, such as PCL/ gliadin-10 and PCL/zein-10, can significantly improve tensile properties of the fabricated scaffolds such as Young’s modulus and yield stress. These scaffolds were further evaluated by culturing mouse embryonic fibroblasts (NIH/3T3) cells and proven to enhance cell adhesion and proliferation, apart from temporary inhibition effects for PCL/gliadin-20 scaffold at the initial growth stage. After these plant protein nanoparticles were gradually released into culture medium, the generated nanoporous structures on the scaffold fiber surfaces became favorable for cellular attachment, migration, and proliferation. As competent candidates that regulate cell behaviors in 3D microenvironment, such composite scaffolds manifest a great potential in drug screening and 3D in vitro model development. 
Using Online Wikis for Assessment Transforms Student Articulation of Learning
Authors: Bonham Elizabeth
Published: October 2020

Learning objectives guide an academic course with measurable behaviors a strategic result. The process of course mapping may explicate gaps in curriculum content that when offered to the student may appear more manageable when course content is partitioned into modules. Learning objectives for each module can further differentiate deeper understanding of the curriculum. However, students seldom articulate how their learning satisfies the objectives. Teaching online courses presen Learning objectives guide an academic course with measurable behaviors a strategic result. The process of course mapping may explicate gaps in curriculum content that when offered to the student may appear more manageable when course content is partitioned into modules. Learning objectives for each module can further differentiate deeper understanding of the curriculum. However, students seldom articulate how their learning satisfies the objectives. Teaching online courses presents technologies useful for both faculty and student assessment. The use of the wiki technology mechanism as a student assessment tool is useful to demonstrate how students, through self - reflection, identify the intersection between individual learning, module objectives, and clinical practice application. In this paper, the author describes how online education and assessment with a technology such as wiki illuminate how course objectives are met and student learning occurs.
Physiological and Biochemical Consequences of Exposure of Neonatal Rats to Chronic Hypoxia
Authors: Ibe Basil , Abdallah May , Raj J.
Published: October 2020

We studied effect of chronic hypoxia (CH) on expression of platelet activating factor receptor (PAFR) by neonatal rats (pups). We hypothesized that PAFR antagonist will prevent pulmonary hypertension (PH) in pups exposed to CH. Pups were placed in an air-tight chamber ventilated with 13% oxygen, hypoxia (Hpx) or room air normoxia (Nmx) from 1d to 22d of age. Three groups of pups were studied (each group, n=10-14 pups): Group1, pups in Nmx; Group2, pups in Hpx given 5mg/kg PAFR receptor antagonist, WEB 2170, IP, every other day for 22d, (Hpx+WEB); Group3, pups in Hpx control. Hemotocrit, RV/LV+S, PAF binding, PAF synthesis, and PAFR expression were determined. Hyx control group had 2-fold higher RV/LV+S than Nmx group and PAFR antagonist decreased RV/LV+S to the Nmx control value. Lungs of pups in Hpx expressed more PAFR protein than Hpx+WEB and Nmx groups. Additionally, Hpx increased PAF synthesis and PAFR binding whereas WEB treatment decreased PAFR binding, but produced no difference in PAF synthesis compared to Nmx group. Hpx increased NF-kB p65 and TLR4 expression. WEB treatment abrogated expression or NF-kB p65 and TLR4 proteins. Our findings show that chronic hypoxia induces expression of PAFR, NF-kB p65 and TLR4 by pups’ lungs and suggest that increased PAFR expression may be responsible for the right ventricular hypertrophy and PH. Thus a PAFR antagonist may offer a therapeutic intervention for CH-induced PH in human neonates.
Oxidative Stress, Antioxidant Defenses, COVID-19 and Pollution
Authors: Rivas-Arancibia Selva , Balderas-Miranda Jennifer , Belmont-Zúñiga Lizbeth , Martínez-Jáquez Martín , Hernández-Orozco Eduardo , Cornejo-Trejo Vanessa , Reséndiz-Ramos Citlali , Cruz-García Iván , Espinosa-Caleti Isaac , Valdés-Fuentes Marlen , Martínez Erika
Published: October 2020

Patients with degenerative diseases present a chronic oxidative stress state, which puts them at a disadvantage when facing viral infections such as COVID-19. This is because there is a close relationship between redox signaling and this inflammatory response. Therefore, chronic changes in the redox balance cause alterations in the regulation of the immune system. An inflammatory response that must be reparative and self-limited loses its function and remains over time. In a chronic state of oxidative stress, there is a deficiency of antioxidants. This results in low levels of hormones, vitamins and trace elements, which are essential for the regulation of these systems. Furthermore, low levels of antioxidants imply a diminished capacity for a regulated inflammatory responses are much more vulnerable to a cytokine storm that mainly attacks the lungs, since they present a vicious circle between the null or diminished response of the antioxidant systems and the loss of regulation of the inflammatory process. Therefore, these patients are at a disadvantage in counteracting the response of defense systems to infection from SAR-COV19. A plausible option may be to restore the levels of Vitamins A, B, C, D, E and of essential trace elements such as manganese, selenium, zinc, in the body, which are key to either preventing or reducing the severity of the response of the immune system to the disease caused by SAR-CoV2. For the present review, we searched the specific sites of the Cochrane library database, PubMed and Medscape. The inclusion criteria were documents written in English or Spanish, published during the last 10 years.
Early Life Stress, Growth and Neurodevelopment in Childhood
Authors: Buchhorn Reiner
Published: October 2020

Follow up studies of children with congenital heart disease, premature birth, small for gestational age syndrome and attention deficit hyperactivity disorder show significantly reduced 24-hours heart rate variability (HRV) that indicate autonomic dysfunction. The underlying pathophysiological process is of high clinical importance if autonomic dysfunction in these children is related to neurocognitive impairment, an enhanced cardiovascular risk, and a higher risk of short stature. Elevated norepinephrine levels, reduced HRV and MRI imaging indicate brain injury very early in life. We introduce the term autonomic imprinting to explain how early life stress have a lifelong imprinting effect on the autonomic nervous system. Many efforts are done for a careful management of infants in pediatric intensive care units. However, early life stress cannot be prevented if sympathetic activation is part of the underlying disease most of all due to congestive heart failure. We could demonstrate that beside a careful management, pharmacotherapy has a high impact on autonomic dysfunction in children with heart failure, attention deficit disorder and short stature. Moreover, online HRV monitoring is a complete noninvasive tool to monitor early life stress if it uses the data from routine heart rate monitoring. HRV online monitoring on the pediatric intensive care unit and Holter ECG monitoring in a daily life setting are clinical routine in our department for each pharmacotherapy affecting the autonomic nervous system. In the same time as monitoring of early life stress becomes clinically routine, the situation of children will improve if we realize which interventions increase early life stress or improve its detrimental damages in longtime follow up.
Hydroxychloroquine Prophylaxis for COVID-19
Authors: Busath David
Published: October 2020

It is common in medicine that simple, inexpensive remedies are held hostage to medical prejudice, financial or political interest, and legal precedent. The purpose of this review is to take the point of view of the victims of COVID-19 and address whether scientific information, including randomized-control trials, can answer whether the hydroxychloroquine should be dispensed for those testing positive and their immediate recent contacts at the point of testing. Although the FDA in the United States is yet to be convinced, the demonstration of positive effects in clinical trials cannot be ignored and there is a large amount of information in the pipeline (published pre-prints and registered clinical trials) that could tip the scales towards making the drug readily available for early disease and contact-prophylactic usage to reduce peak symptoms, symptom duration, contagiousness, hospitalizations and mortality.
PHASE TRANSITION OF THE REISSNER-NORDSTROM BLACK HOLE
Authors: Le Viet Hoa , Nguyen Tuan Anh , Dang Thi Minh Hue
Published: October 2020

The phase transition of matter outside the four-dimensional Reissner-Nordstr¨om charged black hole have been investigated. Based on the metric we have found analytic expressions for thermodynamic quantities as temperature, pressure and isobaric specific heat. The numerical results have shown that for temperatures T less than the critical value Tc there exits a ”liquid-gas” phase transition similar to the Van der Waals fluid. In addition, also pointed out that both temperature and spatial curvature affect phase transitions, but phase transitions are always the first oder.
INFLUENCE OF PRESSURE AND ATOMIC CONCENTRATION ON STRUCTURE AND MECHANICAL PROPERTIES OF CuNi ALLOY BY MOLECULAR DYNAMICS SIMULATION
Authors: Nguyen Thi Thao , Trinh Thi Thu Hang
Published: October 2020

The structure and mechanical properties of Cu80Ni20 and Cu50Ni50 alloys with the size of 4000 atoms have been investigated using molecular dynamic (MD) simulation. The interactions between atoms of the system were calculated by the Sutton-Chen type of embedded atom method. Using a cooling rate of 0.01 K\ps, we find that both Ni and Cu atoms are crystallized into face centered cubic (fcc) and the hexagonal close packed (hcp) phases when the sample was cooled down to 300 K. The atomic concentration of CuNi alloy samples have a different effect on this crystallization. The transformation to the crystalline phase is analyzed through the Common Neighbor Analysis (CNA) methods. Furthermore, we focus on the dependence of the mechanical properties of CuNi alloy on pressure and atomic concentration
ORIBATID MITES (ACARI: ORIBATIDA) OF VIETNAM - SPECIES DIVERSITY AND DISTRIBUTION CHARACTERISTICS
Authors: Vu Quang Manh
Published: October 2020

Oribatid mites (Acari: Oribatida) are one of the most numerous and dominant groups of soil inhabitants that play an important role during soil formation and its biological processes. The paper presents a full list of oribatid mites known of Vietnam (excluding Acari: Astigmata) based on the collected and identified species as well as on literature records from 1967 to 2019. Totally, 726 plus one oribatid species belonging to 245 genera, 90 families, and 41 superfamilies, together with the specimen’s data have been recorded in Vietnam. These oribatid mites species are identified and analyzed along with their distributions known according to the eight natural and man-made factors, including (1) natural region, (2) soil type, (3) climate zone caused by elevation above sea level, (4) habitat type, (5) distance to the sea, (6) climate season, (7) soil vertical distribution, and (8) oribatid body size. This will be an important scientific basis for further analysis on the relationship of the formation of oribalid mite complexes under the influence of natural & man-made factors, contributing to sustainable management of soil ecosystem in Vietnam.
INACTIVATION OF Vibrio parahaemolyticus ISOLATED FROM SEAWATER TO DEVELOP FISH VACCINE
Authors: Pham Hai Dang , Pham Minh Hieu , Le Thi Tuyet Mai , Le Thi Tuoi , Vu Thi Bich Huyen
Published: October 2020

Vibrio parahaemolyticus is a gram-negative bacterium which has been widely reported as the cause for hepatic and kidney necrosis in fishes, especially species of high economic value, in many regions across the world. Five pathogenic strains of V. parahaemolyticus were isolated from seawater samples collected in Thanh Hoa and Nghe An regions, Vietnam. All those strains were characterized by well-known morphological and biochemical characteristics of V. parahaemolyticus. Furthermore, we identified the presence of two common found virulent genes in V. parahaemolyticus (i.e. toxR và tlh) from all isolated strains while the other two genes (i.e. tdh and trh) were missing. Experimental results indicated LD50 values of isolated strains diverged from 105.73 to 107.28 on tilapia (Oreochromis niloticus) and 104.15 to 105.15 on zebrafish (Danio rerio). Then, the strain with the lowest LD50 value, named DH64.1, was selected for producing an inactivated vaccine by using formaldehyde. Consequently, the inactivated vaccine was injected on tilapia with survival rate 100% and the lack of any pathogenic symptom. Finally, vaccinated fish that were challenged with DH64.1 strain at three different challenge doses (i.e. 106, 107, 108 CFU\mL). After a 15 days post-vaccination, the relative percentage survival (RPS) of the vaccine was around 88.66-100%.
DROUGHT RISK ASSESSMENT DURING THE DRY SEASON IN TIEN RIVER ESTUARY
Authors: Dao Ngoc Hung , Nguyen Thanh Luan
Published: October 2020

Drought simply is a period of moisture deficiency. It depends on temperature, evaporation capacity, vegetation cover, topography, etc., in addition, it often happens on a large scale making it difficult to use traditional research methods. With the development and widespread application of remote sensing technology and geographic information systems (GIS), the use of satellite images as well as GIS software is becoming more and more effective in monitoring, monitoring and assessing drought. In this study, the author assessed the risk of drought at Tien river estuary through two indices: Normalize Difference Vegetation Index (NDVI) and Standardized Precipitation Index (SPI) during the dry season months of 1991, 2001, 2010 and 2018. SPI values are interpolated to construct spatial modeling of meteorological drought levels. Through the LANDSAT satellite image, NDVI is calculated and built on a map of drought levels. Weighted overlay SPI and NDVI map layers for a drought risk map. Research results have shown that the Tien river estuary area is divided into 2 zones: light drought and moderate drought occurs in the dry season. Drought occurred with strong intensity in the eastern coastal area of Ben Tre and Tra Vinh provinces, the deeper the inland the level of drought decreased.
Conducting seminars at grade 10 Theatricalized literature works (Based on General Literature Curriculum 2018)
Authors: Le HAI Anh
Published: October 2020

This research has been written to conduct seminars at Grade 10 following General literature curriculum 2018 by theatricalizing literature works to improve students’ ability to perceive aesthetics and arts. Theatricalizing literature works is a teaching method intriguing inspiration for students. This writing discusses about the direction to implement this method in general, utilizing “Chi Pheo” by Nam Cao as an example to analyse.
Mooting court – an experiential activity in teaching short story The boat far out by Nguyen Minh Chau
Authors: Truong Thanh Tong
Published: October 2020

The objectives of Language Arts and Literature in General Education Curriculum aim to develop students’ competency and attribute. Thus, organising experiential activities in Language Arts and Literature to strengthen students’ competency and attribute is both topical and meaningful for a long path. The writer clarifies more about the understanding of experiential activities in Language Arts and Theoretical Literature. Regarding a practical basis, the writer organises a mooting court, an experience-based teaching activity responding to students’ competency and attribute in teaching The boat far out by Nguyen Minh Chau. The teaching had been carried out in the academic year of 2018 – 2019: class observation, data collection, students and teachers’ perspectives collected from survey questionaires and semi-structured interview questions, and data analysis. The findings show that organising a mooting court - an experience-based teaching activity is one of the most effective renewals of teaching methodology
The real situation about the conformation to quality and professional competency standards of Civic education teachers in Hanoi
Authors: Nguyen Thi Toan , Nguyen Ngoc Dung , Nguyen Thi Xiem
Published: October 2020

Based on the survey of current qualities and competencies of Civic education teachers in Hanoi, this article affirms that, the staff has met the basic standards according to the Competency Framework for Civic education teachers. However, to get effective results in implementing the new general education program, teachers of Civic education still need a number of competencies, especially professional competency. The research result is the basis for identifying training content and methods to develop the competencies of this staff.
The impact of living value and life skills in educational program On teachers in Tien Lang- Hai Phong
Authors: Tran Thi Le Thu , Nguyen Thi Nhan Ai , Pham Thi Dieu Thuy , Giang Thi Ngoc Han , Nguyen Duc Giang
Published: October 2020

The paper analyzes the impact of living value and life skills in educational program throughout the aspects of awareness, attitudes, behaviors and self-confidence of 471 primary teachers in Tien Lang, Hai Phong in applying living values and life skills for themselves, their family and students. The surveys were applied on teachers' opinions of implementation of life skill education for elementary school students in Tien Lang, Hai Phong. Then this paper helps to analyze the difficulties, advantages and suggest recommendations for the teacher to improve their education. This paper also discusses some factors that need to be supplemented, adjusted to improve the quality and effectiveness of training for elementary teachers in Tien Lang, Hai Phong in the context of educational renovation in Vietnam.
Measuares to integrate soft skills education in teaching Ho Chi Minh Ideology for undergraduates at university in Hai Duong province
Authors: Nguyen Hai Trung
Published: October 2020

On the basis of generalizing some achievements and remaining limitations in the process of integrating soft skills education in teaching the subject: Ho Chi Minh Ideology for undergraduates at universities in Hai Duong province; the author proposes three measures to contribute to improving the efficiency in this teaching: planning to teach Ho Chi Minh Ideology combining with soft skills education; organizing this combination in teaching practice; testing and evaluating its results of formation and development of undergraduates’ soft skills through teaching this subject at universities. Each measure is analyzed specifically according to the unified structure, including the objectives, contents and methods of implementing the measures; as well as its conditions to implement.
Methods for teaching activities of Literature at High school levelbased on the new general educational programme
Authors: Duong Tuyet Hanh , Nguyen Quy Nam , Duong Thi Thu Thuy
Published: October 2020

Managing Literature teaching activities particularly and teaching activities generally by following the requirements of the upper secondary curriculum is an issue which education managers are concerned with. To meet the requirements and objectives of the new upper secondary curriculum, the article starts with the practice of research and Literature teaching activities management at high schools nowadays so as to suggest some measures in managing Literature teaching activities, such as determining objectives suitable for the new curriculum, choosing the appropriate teaching contents, training teachers for teaching method innovation and Literature teaching activities implementation; with the view to improving the efficiency in managing educational activities as well as meet the objectives of the new upper secondary curriculum.
A Comparative Analysis of Machine Learning Algorithms Modeled from Machine Vision-Based Lettuce Growth Stage Classification in Smart Aquaponics
Authors:   Gokongwei College of Engineering, De La Salle University, Manila, Philippines, Lauguico Sandy C. , Concepcion II Ronnie S. , Alejandrino Jonnel D. , Tobias Rogelio Ruzcko , Macasaet Dailyne D. , Dadios Elmer P.
Published: October 2020

The arising problem on food scarcity drives the innovation of urban farming. One of the methods in urban farming is the smart aquaponics. However, for a smart aquaponics to yield crops successfully, it needs intensive monitoring, control, and automation. An efficient way of implementing this is the utilization of vision systems and machine learning algorithms to optimize the capabilities of the farming technique. To realize this, a comparative analysis of three machine learning estimators: Logistic Regression (LR), K-Nearest Neighbor (KNN), and Linear Support Vector Machine (L-SVM) was conducted. This was done by modeling each algorithm from the machine vision-feature extracted images of lettuce which were raised in a smart aquaponics setup. Each of the model was optimized to increase cross and hold-out validations. The results showed that KNN having the tuned hyperparameters of n_neighbors=24, weights='distance', algorithm='auto', leaf_size = 10 was the most effective model for the given dataset, yielding a cross-validation mean accuracy of 87.06% and a classification accuracy of 91.67%.
Significance of HbA1c test is a stable indicator of triglycerides in diagnosis and prognosis of diabetic patients
Authors: Rani J. Sudha
Published: October 2020

Background: The main purpose of the study was to highlight the relationship between glycosylated hemoglobin (HbA1c) and triglyceride levels in type 2 DM. Insulin resistance is associated with the elevated triglycerides (TG), and persons with type-2 diabetes are insulin resistant However, it is unknown what level of glycemia that causes an increase in TGL. Hence Therefore I am interested to determine the quantitative relationship between the hemoglobin A1C (HbA1c) and TGL.Methods: This descriptive study was conducted at GVPIHC&MT Marikavalasa, Visakhapatnam-4. The study population included 100 patients (not discriminate Male/ Female) of type 2 DM not on lipid lowering medication and 100 subjects without DM as controls from the department of General Medicine. For statistical analysis, Chi-square and Pearson’s correlation coefficient was used to find the association between triglyceride and HbA1c.Results: The association of high triglyceride was evaluated in type 2 DM group of HbA1c, with a cut-off value 7% patients had high triglycerides and showed a significant association with high HbA1c levels at p<0.0001.Conclusions: It has been shown from this study Triacylglycerol level are high with HbA1c (with a cut-off value 7%) level was found higher in diabetic patients when compared with the controls. Therefore, proper glycemic control should be maintained by maintaining HbA1c level less than 6.0% to prevent multifactorial disorder of diabetic complications.
A Facial Expression Recognition Model Based on Texture and Shape Features
Authors: Li Aihua , An Lei , Che Zihui
Published: October 2020

With the development of computer vision, facial expression recognition has become a research hotspot. To further improve the accuracy of facial expression recognition, this paper probes deep into image segmentation, feature extraction, and facial expression classification. Firstly, the convolution neural network (CNN) was adopted to accurately separate the salient regions from the face image. Next, the Gaussian Markov random field (GMRF) model was improved to enhance the ability of texture features to represent image information, and a novel feature extraction algorithm called specific angle abundance entropy (SAAE) was designed to improve the representation ability of shape features. After that, the texture features were combined with shape features, and trained and classified by the support vector machine (SVM) classifier. Finally, the proposed method was compared with common methods of facial expression recognition on a standard facial expression database. The results show that our method can greatly improve the accuracy of facial expression recognition.
Dynamic Increased Capacity Approach Steganography in Spatial Domain
Authors: Rashid Aqsa , Salamat Nadeem , Surya Prasath V.B.
Published: October 2020

Information security using image steganography is the process of concealing secret information within an image. The conventional methods are static approaches having fixed capacity in term of embedding rate. To solve the problem of static behavior and fixed capacity, we proposed a method that is dynamic approach and increased capacity for embedding rate. Novel algorithm can be used by the data storage industry to design new data storage devices. Other possible applications of this research work will be its usage in other areas such as Watermarking, Document Tracking Tool, Document Authentication Tool, and General Communication etc. Experimental results demonstrate that our proposed steganography algorithm produces the best performance among state-of-the-art algorithms in evaluation of subjective visual assessment as well as objective error metrics.
An Image Recognition Algorithm of Bolt Loss in Underground Pipelines Based on Local Binary Pattern Operator
Authors: Yan Xiaodong , Song Xiaogang
Published: October 2020

This paper mainly designs an image recognition algorithm of bolt loss in underground pipelines. Firstly, the local binary pattern (LBP) operator was improved to optimize the information content of eigenvectors and enhance the discriminability. Next, the patterns were selected through weighting and ranking, thereby optimizing the original features in each channel of the image. Meanwhile, the main patterns of each channel were classified and identified with the support vector machine (SVM) classifier. The radial basis function (RBF) was taken as the kernel function for the SVM, and the teaching-learning-based optimization (TLBO) algorithm was improved to optimize the SVM parameters. Finally, the improved SVM classifier assigns suitable weights to the predicted class tags of different channels, facilitating the recognition of bolt loss. The research results shed new light on the application of swarm intelligence in image recognition.
As novas causas de impedimento do Juiz (Artigo 144 do NCPC)
Authors: Almeida Marcelo Pereira de , Baptista Bárbara Gomes Lupetti
Published: October 2020

O presente artigo fez uso do método dedutivo com apoio na metodologia de pesquisa bibliográfica e os resultados pretendidos perpassam sobre a imparcialidade do magistrado ao proferir as suas Sentenças, levando em consideração que tal imparcialidade é uma garantia processual. Ainda, foi realizada uma análise comparativa entre o Código de Processo Civil revogado (1973) e o Código de Processo Civil vigente (2015), ressaltando as principais alterações nos vícios que comprometem a imparcialidade, ou seja, as causas que ensejam a caracterização do Impedimento e da Suspeição do Juiz no processo judicial. Ainda neste contexto, salientaram-se os prazos, o procedimento de julgamento, os seus recursos, bem como, os possíveis efeitos resultantes da Arguição do Impedimento (considerado mais grave por ensejar na nulidade da sentença) e da Suspeição, entre eles, o efeito suspensivo, aquele que suspende o processo até o julgamento final do incidente.
Optimization Study of Syngas Production from Catalytic Air Gasification of Rice Husk
Authors: Chun Minh Loy Adrian , Yusup Suzana , Shen How Bing , Herng Chan Yi , Lai Fui Chin Bridgid , Borhan Azry , Yeong Lim Huei
Published: October 2020

Catalytic air gasification of rice husk was investigated in this study to optimize the hydrogen and syngas composition using a thermogravimetric analyzer coupled with a mass spectrometer. Then, a fixed bed reactor is used as a pilot plant to evaluate the practicality of the optimum parameters obtained from thermogravimetric analyzer test for upscaling. The catalyst used is coal bottom ash selected based on a previous study and obtained from a local power plant. The results from thermogravimetric analyzer test had shown that the optimum input parameters for syngas composition were at a reaction temperature of 900 ËšC, rice husk particle size of 250 µm, amounts of catalyst of 10 wt%, and air to biomass ratio of 1.25 to obtain product gas with 73.8 vol% of syngas composition. From a fixed bed reactor, 76.2 vol% of syngas composition is obtained, 3.25% higher than the previous test. Furthermore, 84.1 wt% of gaseous product yield, included syngas and CH4, was obtained in the catalytic air gasification using a coal bottom ash catalyst. This showed the potential of coal bottom ash as the substitute for commercial catalysts in catalytic gasification. Lastly, principle component analysis was applied to evaluate the effect of temperature, particle size, air to biomass ratio, and coal bottom ash loading on H2 and syngas production. H2 production appears to be highly sensitive to the reaction temperature. Meanwhile, particle size, air to biomass ratio and catalyst loading were having a positive correlation with CO2 and CH4 but negative correlation with H2.
Construção de uma câmara de cura piloto com alimentação a vapor para produção de placas de baterias de chumbo-ácido.
Authors: Dalvi Beatriz Gueler , Santos Kaike Costa , Carvalho Santana Lucas , Carvalho Cynthia Mayara de , Brito Gilberto Augusto de Oliveira
Published: October 2020

Na produção de baterias chumbo-ácido, a etapa principal é o processo de cura de placas empastadas. Embora haja estudos tratando do processo de cura, principalmente com os objetivos de otimizar a etapa e melhorar o desempenho das baterias, existe a necessidade de um estudo sistematizado deste processo. Deste modo o principal objetivo deste trabalho é a construção de um equipamento em escala piloto com controle de umidade e temperatura, mais comumente conhecido no setor como câmara de cura. Com isso, tem-se o intuito de operá-la em diferentes condições a partir das variações de umidade e temperatura, que influencia diretamente nas propriedades do material precursor obtido após a etapa de cura. O piloto construído apresentou resultados satisfatórios, sendo, portanto, de grande valia para o estudo da influência da umidade e temperatura com as características do material precursor.
Reflexões sobre Empresas Multinacionais e a Pandemia de Covid-19
Authors: Amal Mohamed , Blumenschein Markus , De Vasconcellos Sílvio Luís
Published: October 2020

Nesta pensata, o Head of Point of Production da T-Systems do Brasil, subsidiária do Grupo Deutsche Telekom, uma das maiores empresas do mundo em tecnologia da informação e telecomunicação, Dr. Markus Blumenschein e um dos acadêmicos brasileiros mais respeitados na área de negócios internacionais, Dr. Mohamed Amal,  juntamente com o professor do Programa de Pós-Graduação em Administração e coordenador do Observatório de Multinacionais e Negócios Internacionais da ESPM, Dr. Sílvio Luís de Vasconcellos, dizem como imaginam o efeito da Pandemia de COVID-19 afetará o futuro das empresas multinacionais situadas em países emergentes. Os quadros que eles descrevem como prováveis têm implicações profundas e imediatas para gestores e sugere múltiplas oportunidades de pesquisas para acadêmicos. Este ensaio reflete a discussão ocorrida em maio de 2020, por ocasião de um webinar organizado pela ESPM sobre o tema. Está estruturado em três blocos: efeitos sobre a Globalização, respostas imediatas e sugestões para pesquisas sobre os efeitos da pandemia no fluxo de investimentos, nas estratégias das multinacionais e sobre o novo papel do Estado deflagrado pela Pandemia de COVID-19.
Evaluation and characteristic of economically valuable signs of muscular and large-freeded portion size lines
Authors: Yakimova O. V. , Lazko V. E.
Published: October 2020

Relevance. In the consumer market, there is a popular pumpkin in portion sizes weighing 1.0 to 2.5 kg. To meet the needs of the population and producers in pumpkin fruits, F1 varieties and hybrids with high economically valuable traits, portion size and manufacturability in production and processing are needed.

Material and methods. The purpose of the research is to analyze, isolate and select the best breeding samples for creating parental lines of butternut pumpkin and large-fruited portion size.The experiment was carried out at the selection plot of the FSBSI "Federal Scientific Rice Centre" from 2015 to 2019. The objects of research were cultivars, hybrid populations, cultivars and samples obtained from different sources.

Results. Lines with a number of economically valuable traits are highlighted, including portion size, productivity, biochemical parameters and commercial attractiveness of fruits. According to the length of the growing season, all inbred lines were divided into 3 groups: early maturing, mid-maturing, late maturing. In terms of productivity, the following lines stand out: KrChkh, BatS, La. The following lines were distinguished by the content of dry soluble substances (SRV, mg%): KrChkh, LaChkh, BatS, LaN. In muscat lines, the number of marketable fruits per plant varied from 3.3-5.7 pcs / plant. According to keeping quality, the test samples were divided into several groups: the least keeping quality among the studied samples was the line 15-5 (105 days); in fruits of lines 24-3, 16-5, 15-1, the safety of fruits increased to 116-126 days. The 28-2 line (162 days) was the highest keeping quality. The rest of the lines were attributed to medium bikes (133-148 days). All selected lines were characterized by a female type of flowering, multi-fruiting, short-leaved and good keeping quality of fruits. The KrChx line has a pronounced leaf aerenchyme. The organoleptic analysis showed that all the lines identified have a high score of 4.5-5. All commercially valuable traits in the lines are fixed with an inward.
GOVERNANÇA NO COMITÊ DE BACIA HIDROGRÁFICA DO BAIXO PARAÍBA DO SUL E ITABAPOANA: efetividade da lei e importância do tema para a agenda pública
Authors: Totti Maria Eugênia , Thomé Vanda Corrêa
Published: October 2020

O artigo busca apurar e discutir os resultados produzidos pelo Comitê de Bacia Hidrográfica do Baixo Paraíba do Sul e Itabapoana (CBH BPSI) relacionados ao ambiente institucional: a efetividade da lei e a importância do tema para a agenda pública. O procedimento metodológico envolveu pesquisa documental em atas, notas técnicas, resoluções, relatórios de gestão, entre outros documentos produzidos pelo CBH e/ou por sua agência de bacia. Os dados primários foram levantados a partir da observação não participante [como técnica preponderante] e entrevista não estruturada [de forma complementar], a fim de demonstrar o aspecto da governança assimilado e o resultado apresentado pelo CBH BPSI nos três biênios estudados - correspondentes ao período de 2011 a 2017. Os dados indicam que o CBH BPSI tem demonstrando ser uma instituição que tende a ser efetiva na governança das águas, ainda que apresente limitações associadas ao desenho do sistema e ao contexto em que essas instituições operam.Palavras-chave: Governança. Águas. Efetividade. Políticas públicas.GOVERNANCE IN HYDROGRAPHIC BASIN COMMITTEE OF THE LOW PARAÍBA DO SUL AND ITABAPOANA: effectiveness of the law and importance of the theme for the public agendaAbstractThis article seeks to investigate and discuss the results produced by the Lower Paraíba do Sul and Itabapoana River Basin Committee (CBH BPSI) in respect to the institutional environment: the effectiveness of the law and the importance of the theme for the public agenda. The methodological procedure involved documentary research, technical notes, resolutions, management reports, among other documents produced by CBH and / or its basin agency. The primary data were collected from non-participant observation [as preponderant technique] and unstructured interview [in a complementary manner] todemonstrate the assimilated governance aspect and the results presented by CBH BPSI in the three biennia studied - corresponding to the period from 2011 to 2017. Data indicate that CBH BPSI has been shown to be an institution that tends to be effective in water governance, even though it has limitations associated with the system design and the context in which these institutions operate.Keywords: Governance. Waters. Effectiveness. Public policies.
POLÍTICA DE PRECIFICAÇÃO DE GEE: impactos econômicos e ambientais na agrologística de grãos no Mato Grosso
Authors: Rocha Fernando Vinícius da , João Abner Matheus , Costa Everton Lima , Caixeta Filho José Vicente
Published: October 2020

Este trabalho busca analisar o quão determinante seriam as políticas precificação de emissões de gases do efeito estufa (GEE) na competividade logística agroindustrial no Brasil. Para isso, considerou dois projetos de infraestrutura logística em fase de pré-concessão, Ferrogrão e Ferrovia Paraense, visando o escoamento da produção de grãos no estado do Mato Grosso. Assim, determinando as áreas de influência não apenas por meio dos custos de transporte, bem como com a incorporação dos custos provenientes das emissões, as soluções logísticas intermodais, considerando os dois projetos, indicam que essas são as que apresentam potencial maior área de influência para captação das menores emissões GEE. Cenário esse corroborado, visto que, consideradas elevações no custo por tonelada de CO2 emitido, o escoamento por meio da Ferrogrão e da Ferrovia Paraense se tornariam maiores.Palavras-chave: Precificação. Emissões. Agronegócio. Logística. Grãos.GHG PRICING POLICY: economic and environmental impacts on grain agrologistics in Mato GrossoAbstractThis paper analyzes how crucial the pricing policies of greenhouse gas (GHG) emissions would be in the agroindustrial logistic competitiveness in Brazil. Two transportation infrastructure projects are analyzed, Ferrogrão and Pará Railway. By determining the areas of influence not only through transportation costs, as well as the incorporation of emissions costs, intermodal logistics solutions, considering the two projects, indicate that these are the ones with the largest potential area of influence to capture the lowest GHG emissions. This is corroborated as, considering increases in the cost per ton of CO2 emitted, the flow through Ferrogrão and Pará Railway would become larger.Keywords: Pricing. Emissions. Agribusiness. Logistics. Grains.
ÁGUA EM ESTADO VIVO: conflito socioambiental e r-existência em torno do rio Dendê, Barcarena, Pará
Authors: Cruz Jaqueline do Nascimento , Hazeu Marcel Theodoor
Published: October 2020

A Amazônia é um hidroterritório e um bioma que comporta milhares de pessoas, espécies da fauna e flora. O Rio Dendê, em Barcarena-Pará, faz parte deste cenário. Este rio é palco de conflitos de interesses entre empresas transnacionais, o estado e comunidades ribeirinhas. O estudo analisa, a partir de estudo documental e observação participante, estes conflitos, situando-os em um panorama histórico-interpretativo, com foco no papel do Estado e na r-existência das comunidades ribeirinhas. O aparato estatal se apresenta através da ação da Companhia de Desenvolvimento Econômico, da Secretaria de Estado de Meio Ambiente e Sustentabilidade e do Ministério Público A voz das comunidades serve como contrapartida. Conclui, ainda, que o apoio do estado é fundamental para o avanço do capital sobre o hidroterritório Dendê, empobrecendo-o e transformando o modo de vida dos ribeirinhos que mesmo assim r-existem.Palavras-chave: Conflito socioambiental. Hidroterritório. Estado. R-existência. Amazônia.WATER IN LIVING STATE: socio-environmental conflict and r-existence around the Dendê River, Barcarena, ParáAbstractThe Amazon is a hydroterritory and a biome that holds thousands of people, species of fauna and flora. The Dendê River in Barcarena-Pará is part of this scenario. This river is the scene of conflicts of interest between transnational corporations, the state and riverside communities. From documentary study and participant observation, we analyze these conflicts, situating them in a historical-interpretative panorama, focusing on the role of the state and the r-existence of riverside communities. The state apparatus is presented through the action of the Company of Economic Development, the State Secretariat ofEnvironment and Sustainability and the Public Prosecutor. The voice of the communities serves as a counterpart. It can be concluded that state support is fundamental for the advancement of capital over the Dendê hydroterritory, impoverishing it and transforming the way of life of the riverside communities.Keywords: Socioenvironmental conflict. Hydroterritory. State. R-existence. Amazon.
FORMAÇÃO DE AGENDA E CORRELAÇÃO DE FORÇAS POLÍTICAS: a aprovação da redução da maioridade penal na Câmara Federal
Authors: Lino Lillian Lages , Vazquez Daniel Arias
Published: October 2020

O artigo analisa a aprovação da redução da maioridade penal na Câmara dos Deputados em 2015. Proposta pela primeira vez em 1993, a Proposta de Emenda Constitucional (PEC) nº. 171 visa reduzir a idade de imputabilidade penal para 16 anos. Aplicando o modelo teórico dos Múltiplos Fluxos, de John Kingdon, propõe-se a discutir quais os fatores que mobilizam a agenda-settinge a correlação de forças estabelecida na Câmara Federal que explicam a aprovação da matéria, a despeito do posicionamento contrário do Poder Executivo. A análise da votação foi realizada por meio da associação entre variáveis políticas e da construção de um modelo de regressão logística. Os resultados mostram que a fragilidade da base governista e a composição mais conservadora no legislativo teriam possibilitado a aprovação da PEC 171/1993 no primeiro ano da 55ª Legislatura.Palavras-chave: Formação de agenda. Teoria dos múltiplos  fluxos. Redução da maioridade penal. Legislativo.AGENDA-SETTING AND POLITICAL STRENGTH CORRELATION: the approval of the legally punishable age in the Federal ChamberAbstractThis article aims to analyze the approval of the reduction of the legally punishable age case in Chamber of Deputies in 2015. Received for the first time in 1993, the Proposal of Constitutional Amendment nº. 171 aims to reduce the legally punishable age to 16 years old. Applying the Multiple Streams Model, by John Kingdon, this research aspires to discuss which are the factors that mobilizes agenda-setting and the strength correlation established in 55th parliamentary term in Chamber of Deputies that explains it’s approval, despite of Executive’s opposition. The voting analyses was realized through politicalvariables associations and construction of a logistic regression model. The results show that the fragility of executive basis and the strengthened conservative composition in Congress would have enabled this approval in the first year of the 55th parliamentary term.Keywords: Agenda-setting. Multiple streams theory. Legally punishable age. Legislative.
Polski rynek obligacji nieskarbowych – nowe zasady rejestracji obligacji oraz analiza rejestru zobowiązań emitentów
Authors: Martysz Czesław Bartłomiej
Published: October 2020

Po aferze Getback S.A., w celu wzmocnienia nadzoru nad rynkiem obligacji, stworzono specjalny Rejestr Zobowiązań Emitentów (RZE), który ułatwia inwestorom wyszukiwanie informacji na temat papierów dłużnych. Rejestr ten po raz pierwszy ujawnił rzeczywisty rozmiar oraz kilka ważnych cech polskiego rynku obligacji nieskarbowych. Pierwszym celem artykułu jest pokazanie istotnych zmian prawa dotyczących rejestracji obligacji oraz ich potencjalnego wpływu na dalszy rozwój rynku. Drugim celem jest ukazanie nieznanej dotąd skali i głównych cechy rynku obligacji, w tym w szczególności obligacji komunalnych.

Pierwsza hipoteza brzmi: obowiązkowa rejestracja obligacji w KDPW wraz z publicznie dostępnym Rejestrem Zobowiązań Emitentów poprawiły przejrzystość i poziom bezpieczeństwa polskiego rynku obligacji nieskarbowych oraz ułatwiły obrót tymi papierami na rynku wtórnym. Druga hipoteza brzmi: Rejestr Zobowiązań Emitentów jest pierwszym publicznie dostępnym narzędziem do kompleksowej analizy polskiego rynku obligacji nieskarbowych, który ujawnił m.in. duże rozdrobnienie emitentów (w szczególności w obligacjach samorządowych), dominację emitentów kontrolowanych przez Skarb Państwa, przewagę obligacji o zmiennym oprocentowaniu oraz znaczącą liczbę obligacji zarejestrowanych poza KDPW.
The Essence and Significance of Financial Instruments for Enterprises in Poland in 2010-2018
Authors: Paduszyńska Marta
Published: October 2020

The purpose of the article/hypothesis: The aim of the study is an attempt to show the degree of use of financial instruments by non-financial enterprises operating on the Polish market and to determine whether their application translates into the financial results achieved by these enterprises. The hypothesis was adopted that the importance and use of financial instruments by enterprises on the Polish market is not significant, however, as a result of global transformations and the growing importance of financial markets, the activity of entities in this respect will increase.

Methodology: In order to determine the degree of use of financial instruments among enterprises, the data published by the Central Statistical Office (GUS) for the years 2010–2018 were used and the key indicators illustrating the involvement of enterprises in the instruments available on the financial market were calculated. The literature on the subject was also reviewed and analyzed.

Results of the research: The conducted considerations that non-financial enterprises in the polish market showed an increase in involvement in financial activities, as evidenced by the growing share of financial instruments, both on the active and passive side. On the passive side, the use of credits and loans in financing the activities of entities increased. This increase, however, did not translate into the use of the effects of financial leverage in the surveyed enterprises and an increase in the profitability of equity. In the case of assets, in the analyzed period there was an increase in the involvement of free funds in investments, mainly due to an increase in equity financial instruments. However, the analysis of financial revenues in total revenues may suggest that greater involvement in the financial sphere does not translate into profitability of assets and the results of the surveyed entities. It should be emphasized, however, that the development of the financial market and the increasing availability and variety of financial instruments strengthen the interest of enterprises in capital investments.