bluuebunny/crossref_metadata_2025 huggingface dataset:
Pensamiento crítico en la escuela: una revisión de la literatura
Authors: Ozaeta Barrera María Juliana , Arias María Paula , Ortíz Laura Biviana , Duque-Romero Claudia Alejandra , Sánchez Yenny Marcela , Henao-Morales Laura Yamile
Published: December 2021

Este artículo se deriva del proyecto titulado “Implementación de una estrategia de apropiación social de la CTeI (Ciencia, Tecnología e Innovación) que promueve el pensamiento crítico y creativo en niños, niñas y jóvenes de las instituciones educativas del Tolima”. Se planteó como propósito analizar la evidencia empírica y teórica disponible sobre el desarrollo del pensamiento crítico, a partir de estrategias metodológicas utilizadas en el aula con estudiantes de básica primaria y secundaria. Lo anterior, tras considerar que el pensamiento crítico aumenta la participación de la comunidad educativa para el reconocimiento y solución de problemas relacionados con el territorio que se habita. Por lo tanto, es tarea de la escuela promoverlo desde los primeros años; sin embargo, hay estudios que muestran avances en el desarrollo del pensamiento crítico y creativo, pero se concentran en la educación superior, mientras hay rezagos en primaria y secundaria. Finalmente, las investigaciones revisadas posicionan el papel de la escuela como escenario clave para el desarrollo del pensamiento crítico.
Empoderamiento de la mujer campesina en el Sur del Tolima
Authors: Salamanca María del Pilar
Published: December 2021

Las mujeres rurales son agentes clave para conseguir los cambios sociales, culturales, ambientales y económicos necesarios para el desarrollo de un territorio; enfrentando retos de acceso limitado a créditos, salud y educación. Esto se ve agravado además por las crisis actuales a nivel sanitario y el cambio climático. Su empoderamiento no solo es fundamental para el bienestar de las personas, familias y comunidades rurales, sino también para la productividad económica de la región.
Experiencias en la transferencia tecnológica del proyecto de Cafés Especiales
Authors: Acosta-Andrade María Paula , Ávila-Navarro Julián
Published: December 2021

El proyecto de Cafés Especiales de la Universidad de Ibagué, la Universidad del Tolima y la Gobernación del Tolima es un proyecto que ha beneficiado a un grupo de familias cafeteras de la región del Tolima con tecnologías ecológicas para el mejoramiento de sus procesos de poscosecha de café mediante el uso de biodigestores. El propósito de este artículo es mostrar y analizar las experiencias de transferencia tecnológica de los integrantes del proyecto, desde una perspectiva técnica y social, encontrando que las comunidades cafeteras estaban dispuestas a cambiar y a aprender nuevas tecnologías que pudieran aumentar su calidad de vida y el valor agregado de su café.
Un latido más de avance para la salud en el Tolima
Authors: Cárdenas Cadena Valentina
Published: December 2021

El Ministerio de Ciencia, Tecnología e Información (Minciencias), en el marco de su Convocatoria 896, otorgó el financiamiento para el desarrollo del proyecto “Biodiseño: una oportunidad para mejorar el manejo de la enfermedad cardiovascular en el Tolima”, liderado por dos grupos de investigación de la Universidad de Ibagué (2021): D+TEC y GMAE, con el apoyo del grupo de ingeniería biomédica de la Universidad de los Andes. Este proyecto que se destaca por su innovación tiene un sentido más trascendental, pues pretende ser una alternativa para darle manejo a una de las enfermedades que más ha arrebatado vidas en los últimos años.
V Conferencia Colombiana de Control Automático de IEEE: Un punto de encuentro entre la industria, la academia y la investigación
Authors: Cárdenas Cadena Valentina
Published: December 2021

En el marco de las distintas actividades que desarrolla el Instituto de Ingenieros Eléctricos y Electrónicos (IEEE), en octubre se celebró la V Conferencia Colombiana de Control Automático, organizada por la Universidad de Ibagué y cinco universidades más. Esta conferencia llena de retos para los organizadores, tras de ser la primera en realizarse de manera virtual, también fue la oportunidad perfecta para que todos los interesados en el control y la automatización industrial conocieran y estuvieran al tanto de las últimas novedades en esta área temática.
PERFORMANCE OF UREA/NaOH AS A GREEN SOLVENT IN DISSOLVING RECYCLED CELLULOSIC FIBER FINES RESIDUES
Authors:   Wood and Paper Science and Technology Department, Faculty of Natural Resources,  Tarbiat Modares University, Noor, Iran Wood and Paper Science and Technology Department, Faculty of Natural Resources,  Tarbiat Modares University, Noor, Iran Wood and Paper Science and Technology Department, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran, BAGHERI SHAKIBA , RAHMANINIA MEHDI ,   Wood and Paper Science and Technology Department, Faculty of Natural Resources,  Tarbiat Modares University, Noor, Iran Wood and Paper Science and Technology Department, Faculty of Natural Resources,  Tarbiat Modares University, Noor, Iran Wood and Paper Science and Technology Department, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran, BEHROOZ RABI ,   Wood and Paper Science and Technology Department, Faculty of Natural Resources,  Tarbiat Modares University, Noor, Iran Wood and Paper Science and Technology Department, Faculty of Natural Resources,  Tarbiat Modares University, Noor, Iran Wood and Paper Science and Technology Department, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
Published: December 2021

Using lignocellulosic materials for producing more value-added bioproducts is an attractive mission. Fiber fines, which represent an important part of the wastes generated by paper recycling mills, have been considered in the current research. Dissolving these lignocellulosic residues in environmentally friendly and inexpensive solvents can be a great achievement. For this purpose, the performance of urea/sodium hydroxide in dissolving printing and writing pulp (RPW) fines was investigated. Although using sodium hydroxide alone had a positive effect on the dissolution of recycled printing and writing pulp (RPWP) fines, the addition of urea increased the dissolution of fines from 23% to 56%. Different levels of urea consumption had no significant effect on the dissolving process. The performance of the urea/sodium hydroxide system in dissolving fines suspensions with different concentration (1, 3 and 5%) showed that reducing the concentration leads to an increase in fines dissolution (56, 36 and 7%, respectively). The results of FTIR confirmed the presence of cellulose without any hemicelluloses and lignin in the dissolving part. The results of X-ray diffraction analysis of soluble cellulose showed that the type-I cellulose structure probably changed to type-II cellulose. No reduction in the DP of dissolved cellulose and the integrated structure of the final cellulosic film confirmed by the FE-SEM images affirmed the successful dissolution of the RPWP fines in this system.
SEPARATION OF HEMICELLULOSES FROM AN INDUSTRIAL STREAM BY NANOFILTRATION AND ULTRAFILTRATION PROCESSES
Authors:   Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat – 395007, India, SINGH SAURABH C. , KHARE RUPESH A. ,   Pulp and Fibre Innovation Centre, Grasim Industries Ltd., Taloja, Raigad – 410208, India, MURTHY Z. V. P. ,   Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat – 395007, India
Published: December 2021

The performance of nanofiltration (NF) and ultrafiltration (UF) membranes was studied for separating hemicelluloses from a highly alkaline industrial stream, containing 17-18 wt% sodium hydroxide, resulting from the viscose process. Initially, screening experiments were performed to select suitable membranes, which were then investigated on a pilot scale spiral module. Screening experiments showed that the UF membrane, with a nominal molecular weight cut-off (MWCO) value of 3 kDa, and the NF one, with a nominal MWCO value of 0.5 kDa, showed a similar range of filtration performance and a flux of 4.2 L/m2.h. Further, a retention efficiency of 50% was observed for the 5 kDa and the 10 kDa membranes, indicating absence of any significant proportion of hemicelluloses in this range of molecular weights. The effects of process conditions were studied to understand their correlation with membrane performance with respect to hemicelluloses retention and permeate flux. UF membranes were found to be more prone to performance deterioration over time and with the number of cycles of usage during the pilot scale study, whereas the NF membrane showed consistent performance. It was seen that feed dilution can improve the membrane performance with respect to sodium hydroxide recovery. Significant reduction in feed viscosity with dilution resulted in a 50% increase in flux after normalizing for concentration.
EFFECT OF CHITOSAN ADDITION DURING PAPER-MAKING ON AGEING STABILITY OF DOCUMENT PAPER
Authors:   Department of Pulp, Paper and Printing Art, University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Blvd., 1756 Sofia, Bulgaria, TODOROVA DIMITRINA , LASHEVA VESKA ,   Department of Pulp, Paper and Printing Art, University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Blvd., 1756 Sofia, Bulgaria
Published: December 2021

The aim of the present work has been to study the influence of chitosan addition into the composition of paper intended for documents on its ageing stability, with a view of enhancing the resistance of paper strength and optical properties over time. The chitosan solution was added during the formation of the paper sheets in various amounts: 0.2%, 1% and 2% o.d.f. Paper samples of different fibrous compositions were prepared from bleached sulphate softwood pulp (BSWP) and bleached sulphate hardwood pulp (BHWP) in the following ratios: 50% BSWP:50% BHWP, 80% BSWP:20% BHWP, 100% BSWP and 100% BHWP. Then, paper samples were subjected to accelerated thermal ageing for 24 hours at 105 °C. It was found that the use of chitosan as additive in the composition of bleached cellulose paper samples led to improved strength and hygroscopic properties. The study showed that chitosan could be used in the production of kraft document papers comprising aluminium sulphate, as the presence of aluminium sulphate had no negative effect on the action of the biopolymer. Regarding the complex evaluation of the properties of the obtained papers, it could be summarized that, for the studied fibrous compositions, the optimum amount of the additive was 1% chitosan for a fibrous composition of 50% bleached softwood pulp and 50% bleached hardwood cellulose. Therefore, preparing document paper with the addition of chitosan is a convenient procedure to enhance a number of paper properties, even after the ageing process.
REACTIVE DYE PRINTING ON COTTON FABRIC USING MODIFIED STARCH OF WILD TARO CORMS AS A NEW THICKENING AGENT
Authors:   Faculty of Industrial Textiles and Fashion Design, Rajamangala University of Technology Phra Nakhon, Bangkok 10300, Thailand, MONGKHOLRATTANASIT RATTANAPHOL , KLAICHOI CHAROON ,   Faculty of Industrial Textiles and Fashion Design, Rajamangala University of Technology Phra Nakhon, Bangkok 10300, Thailand, RUNGRUANGKITKRAI NATTADON ,   Department of Textile Science, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand
Published: December 2021

This study investigated the use of a thickening agent derived from modified starch of wild taro corms in the screen printing of cotton fabric using reactive dye. The best conditions for developing the print paste and steaming time in order to obtain maximum color yield were established. The results revealed impressive color fastness properties in the printed samples; although, the printed fabric possessed slightly lesser tensile and tear strength, in comparison with the unprinted fabric. The printed fabric also exhibited increased bending stiffness properties. Largely, this study reveals that the printing paste containing the thickening agent derived from carboxymethyl starch within wild taro corms can be utilized in the printing of cotton fabric using reactive dye.
Financial Frictions in Mexico: Evidence from the Credit Spread and its Components
Authors: Carabarín Aguirre Mauricio , Peláez Gómez Carlos D.
Published: December 2021

Este artículo investiga la relación entre las fricciones en los mercados financieros y la actividad económica en México, para lo cual se construye y descompone un diferencial de tasas para los bonos emitidos por empresas privadas no financieras en el mercado interno, basado en Gilchrist y Zakrajsek (2012). Se muestra que el diferencial contiene información significativa sobre la evolución de la actividad económica y de los agregados crediticios. Además, se encuentra que la prima excedente de los bonos (PEB), cuya dinámica describe la relación entre la probabilidad de impago de las empresas y su diferencial de tasas, es el componente con mayor poder predictivo. Se muestra que choques negativos en las condiciones financieras, identificados como innovaciones en PEB, generan una desaceleración en la actividad económica y en el financiamiento. Finalmente, se encuentra evidencia de efectos no lineales en la respuesta de la actividad económica ante este choque.
EFFECT OF BIOSTIMULANTS ON SOME BIOACTIVE COMPOUNDS AND NITRATE LEVEL IN LETTUCE (Lactuca sativa L.) GROWN UNDER UNHEATED PLASTIC TUNNEL
Authors: Yaseen A. A. , Hajos M. T.
Published: December 2021

Based on the regulation (EU) No 2015/1107 in 8 July 2015, Willow (Salix alba) bark extract is a recent approved basic substance in Europe as a safe and effective environmentally friendly fungicide to be used in plant protection. Because of having indole butyric acid content, it is also used as a growth hormone to promote rooting in cutting propagation of wooden part in horticultural plants. This research aimed to evaluate the effect of willow extract and Ferbanat L (Bistep) on lettuce leaves. Bistep is an organic solution of nano fertilizer which is produced in Hungary and allowed as „Bistep plant conditioner”. Furthermore, the experiment evaluated their interaction on some bioactive compounds in different lettuce varieties, too. Three different lettuce varieties (King of May, Kobak and Great Lakes) were evaluated for total polyphenols, vitamin C and nitrate content in fresh leaves. The results indicate that the contents were significantly affected by the used biostimulants rather than varieties. Significantly difference of the total polyphenols was recorded in the plants treated with Willow + Bistep (80.64 mg GAE / 100g) in comparison to the control (55.85 mg GAE / 100g) in the mean of varieties. Similar result was recorded for the vitamin C. However, plants treated with Willow extract resulted in the highest level of nitrate content (692.00 mg/100g), while the lowest amount was measured in the control (488.00 mg/100g). According to our results, Willow bark extract can be a beneficial source of natural growth regulator or fungicide; however, when it is used alone for vegetables, the nutrient content (mainly nitrate level) must be checked before consuming and delivering to the market.
DEGRADATION OF REACTIVE DYES USING IMMOBILIZED PEROXIDASE PURIFIED FROM NIGELLA SATIVA
Authors: Aziz G. M. , Hussein S. I. , Abbass S. D. , Ibrahim A. L. , Abbas D. K.
Published: December 2021

The present study was aimed to exploit the free and immobilized peroxidase from Nigella sativa seeds to degradation of textile dyes polluting the environment and water. The optimum conditions for extracting the enzyme from the Nigella seeds were determined and the highest specific activity of the enzyme was obtained 1750 units / mg protein when extracting the enzyme from the ground seeds at a ratio of 1:20 (w: v) with sodium acetate buffer at 0.2 M and pH 5.0 for 15 minutes. The enzyme was purified using two steps including the concentration by sucrose and gel filtration by using Sephadex G-150. The results shown an increase in final purification folds 2.8 time with an enzyme yield of 35%. The immobilization of peroxidase were done by entrapment method using Ca- alginate and the immobilization ratio was reached to 49%. The removal efficiency of dyes by crude enzyme (free, immobilized) and partial purified peroxidase were studied with textile dyes such as yellow, red, black and blue dyes at optimum conditions pH 5, temperature 37oC after 3 hr. Maximum removal efficiency of dyes observed with crude peroxidase and reached (76.9, 88.7, 91 and 88) % respectively. These results were close to the efficiency of the purified enzyme in removing the four dyes, while the efficiency of the crude immobilized enzyme in removing the dyes was about (70, 81, 72 and 56.4)%, respectively.
EFFECTS OF SLAUGHTER’ AGE ON GROWTH PERFORMANCE, CARCASS AND NON-CARCASS COMPONENTS TRAITS OF BERBER BREED LAMBS
Authors: Atroun S. , Aissaoui C. , Smeti S. , Atti N.
Published: December 2021

The objective of this work was to study the lamb’s growth, the carcass yield and composition and the importance of main organs of Berber lambs slaughtered at 4 or 6 months. The study concerned 40 lambs reared under motherhood. Lambs of the first group were slaughtered at the age of 4 months (4M) and the second at 6 months (6M). Slaughter body weights (BW), hot and cold carcass weights and organs were recorded. The carcass was cut out and dissected. The average BW at birth was 4.14 + 0.506 kg while the BW at slaughter was 22.86 kg + 3.40 and 31.51 + 3.50 kg for 4M and 6M groups, respectively. The average daily gain were 172 and 164g for 4M and 6M groups, respectively. Therefore, during 2months the lambs of 6M group gained 8.67 kg in BW. The carcasses were heavier for 6M than 4M. The carcass commercial yields were 42% and 45% for 4M and 6M groups, respectively, resulting in 4.1 kg gain of meat during 2 months. The tissular (muscle, fat and bone) and the regional (leg, shoulder …) carcass composition did not differ among groups. All organs were heavier for 6M than 4M; however, their proportion in the empty body weight were variables. The BWand carcass gain at six months are encouraging to prolong the lamb’s slaughter age without carcass composition difference given the similar fat proportion in the carcass of both groups.
ASSOCIATION OF NOVEL POLYMORPHISM OF ESR2 GENE (G40100A) WITH PRODUCTION TRAITS OF BROWN LOCAL IRAQI CHICKEN
Authors: Abu-Rekaiba R.. I. A. , Razuki W. M. , AL-Anbari E. H.
Published: December 2021

The estrogen receptor 2 (ESR2) plays a crucial role in the growth and development of follicles and ovulation in chickens. The aim of this study was detect the association of estrogen receptor 2(ESR2) gene polymorphisms with the production performance of brown local Iraqi chicken. A total of 104 hens from the F4th generation of local chicken selected for high egg yield were used. The novel SNP(G40100A) transition within third prime untranslated region (3 prime UTR) of ESR2 gene. Three genotypes were found: Wild(GG), Heterozygous(GA), and Homozygous(AA) through (PCR-DAN sequencing). Chi-square analysis showed no significant  in genotypic and allelic frequencies for SNP which were agreement with Hardy-Weinberg equilibrium. The genotypes GG and GA were significantly superior  with age at sexual maturity compared to AA genotype. The genotype GA was significantly associated with hen day egg production (HDEP) at 30 weeks compared to genotype AA, as well as the genotype GA  highest significant variance was reported comparing with the GG genotype in HDEP at 45 and 60 weeks, thus, the study recommends to exploit this ESR2 gene polymorphism (G40100A) as promising marker in breeding program via, the selection of individuals carrying the genotype GA, characterized by the high egg production.
ALLELIC VARIATIONS OF SOS, HVNHX AND SDO GENES IN SOME BARLEY (Hordeum Vulgare L.) GENOTYPES
Authors: Taher D. , AL-Aouda A. , Lawand S.
Published: December 2021

This study has been carried out at the Biotechnology Lab., Department of Field Crops, Faculty of Agriculture, Damascus University during the growing season 2019 - 2020, in order to detect the variations of SOS, HVNHX and SDO genes in different barley genotypes.  Clear variations in the SOS, HVNHX and SDO genes, which are responsible for salinity tolerance were found among the investigated genotypes. It has been found that the variation in the amplicon size between loci per gene was very high in some cases, while there was a high degree of symmetry in other cases, and could be easily distinguished on 2% Agarose gel. The PCR results for the SOS genes (SOS1, SOS2, SOS3), HVNHX genes (HVNHX1, HVNHX2, HVNHX3) and SDO genes (Cu/Zn SODII, Cu/Zn SODI, CAT, GRI , APXIII) have shown only one morphological pattern in most of the studied genotypes, while revealed two patterns for the SOS3 gene, but the rest of genes (HVNHX1, HVNHX2, HVNHX3  Cu/Zn SODI, CAT) exhibited only one morphological pattern. The SOS3 was superior in the number of polymorphic patterns, as the number of total patterns was 14 in all the studied genotypes, but the Cu/Zn SODI showed the least number of polymorphic patterns with only 1 pattern, while the largest number (7 patterns) was detected in the genotype (H9), but the two genotypes Fourat9 and Fourat7 showed only one polymorphic pattern.
PREVENTATIVE EFFECTS OF PROBIOTIC (MIACLOST) ON EXPERIMENTALLY INDUCED HYPOCALCEMIC RICKETS IN BROILER CHICKS.
Authors: Ameen N. A. , Abdul Rahman N. R. , Hassan A H
Published: December 2021

A trial was conducted to study the effects of probiotic (Miaclost) supplement on experimentally induced hypocalcemic rickets in broiler chicks, a total of 180 one-day-old broiler chicks (Ross 308) were randomly divided into three equal groups 60 chicks per group with 3 replicates (20 birds /replicate) the dietary treatments consisted of a normal ration for G1, calcium-deficient ration 5% for G2 and calcium-deficient ration with addition of probiotics in drinking water for G3.Initial signs of rickets have been observed at 35-day of age in G2.while, in G1 and G3 no clinical signs observed, the gross lesions appeared enlargement of parathyroid gland, costochondral junction and increase in the width of growth plate of tibial bone of G2 whereas no gross lesions recorded in G1 and G3, the histopathological examination of parathyroid gland in G2 there were a focal parathyroid hyperplasia and increasing in numbers of syncytial cells and normal in G1 and G3, no intestinal histopathological changes in G1 and G2 and increase in height and width of the intestinal villi  in probiotic group G3. Marked increase in the thickness of proliferation zone within growth plate of tibia bone in G2 and normal thickness in G1 and G3. the serum biochemical analysis of calcium of G2 recorded significantly low level in G2 and high level in G3  comparatively with G1, finally the serum alkaline phosphatase values were high significantly in G2 and normal in G3, it is concluded that probiotic (MiaClost) can be used as prophylaxis to prevent hypocalcemic rickets in broiler chicks
PERFORMANCE OF LINEAR MODELS IN PREDICTING CATION EXCHANGE CAPACITY OF CALCAREOUS SOILS
Authors: Fattah M. A. , Karim K. H.
Published: December 2021

Determination of soil cation exchange capacity (CEC) in lab is cumbersome, time consuming, and costly. Accordingly, this article attempted to formulate pedotransfer functions for predicting it using some soil physical and chemical properties e.g., sand (SA), silt (SI), clay (CL), organic matter (OM) and calcium carbonate (CC). This research included four steps: preparing soil database; selecting independent variables which are related to CEC value; formulating models using NCSS 12.0.2 software, and the last step is to achieve specific objective of the research which is the comparsion among models by a series of efficiency criteria: root mean square error (RMSE), Nash-Sutcliffe model efficiency coefficient (EF), average absolute percent error (AAPE), and percentage of improving model efficiency (PIME). The statistical results of the research indicated that CEC of calcareous soils could be predicted from models that have one variable (CL), two variables (CL and OM), and three variables (CL, OM, and CC) with slight decrease in the RMSE (2.95402, 2.81180, and 2.79268) respectively, and slight increase in the EF (0.887360, 0.898448, and 0.90023) respectively. While the reliable models to predict soil CEC are formulated from the fewer number of independent variables with having the lowest points of the standardized residual of CEC that greater than +2 cmolc kg-1).
FUNCTIONAL PROPERTIES OF CATFISH SKIN COLLAGEN HYDROLYSATES
Authors: Ayat A. A. , Shakir K. A.
Published: December 2021

Collagen hydrolysates were obtained from catfish skin collagen hydrolysis using catfish collagenase, pepsin and trypsin individually and mixed for 15-300min. The degree of hydrolysis , antioxidant activity based on, DPPH radical-scavenging activity (RSA), and reducing power (RP) for all obtained hydro lysates were studied , then the collagenase hydrolysate was (CH)  was selected to be evaluated for  antibacterial activity , functional properties including solubility, emulsification and foaming  properties besides the toxicity  . The highest values for RSA (72.5%) has been noticed when DH reached (24.30%) after 30 min. of hydrolysis by collagenase (CH). The water and oil holding capacities for this hydro lysate was compared to that for ASC (acid soluble collagen and PSC (pepsin soluble collagen), the results showed that the values recorded by CH were significantly higher than ASC & PSC. The molecular weight of CH peptides ranged from 180 to 11 Da. as analyzed by SDS- PAGE.  The toxicity assay result revealed that CH is safe for human consumption. There was no antibacterial function for CH toward E.coli and S. aureus. At concentration of 2mg/ml. This study suggests that catfish collagen hydro lysate could be a good natural alternative for synthetic antioxidants in food industries.
MEDIDAS EMERGENCIAIS DE ENFRENTAMENTO DA PANDEMIA DE CORONAVÍRUS (COVID-19) E RESTRIÇÕES A DIREITOS FUNDAMENTAIS
Authors: ROCHA FERNANDO GOULART
Published: December 2021

O trabalho trata do conflito aparente entre normas constitucionais e infraconstitucionais a partir de comentários a dispositivos da lei n. 13.979/20, que dispõe sobre as medidas para enfrentamento da emergência de saúde pública de importância internacional decorrente da pandemia de coronavírus. A análise concentra-se em discutir o tema por meio da restrição a direitos fundamentais sob a perspectiva das teorias interna e externa. Os resultados apontam para o fato de que as medidas previstas na lei restringem o direito à liberdade de locomoção e de reunião, bem como limitam a proteção à vida privada e à intimidade. Entretanto, conclui-se que restrições a direitos fundamentais são próprias do Estado Democrático de Direito e não constituem ofensa à ordem jurídico-constitucional.
COVID19, FONTES DO DIREITO E ESTADO DE EXCEÇÃO: ANÁLISE TRANSNACIONAL
Authors: GOMES GABRIEL DE MORAES , MONTORO RAFAEL SIQUEIRA
Published: December 2021

O presente trabalho avalia, por um percurso de análise transnacional, o processo normativo relacionado ao fenômeno COVID19. Traz comparações críticas entre normas oriundas de diversos países ocidentais quanto à adesão ou não ao modelo constitucional preexistente de estado de exceção. São estabelecidas correlações, no panorama internacional, entre anomalias identificadas nos processos normativos restritivos das liberdades empregados em ordenamentos jurídicos diversos, apontando-se a fonte normativa real dessas restrições, tanto no tocante à proeminência de atos legislativos, executivos ou judiciais, quanto no tocante às interações entre o poder nacional (centralização) e o poder local (descentralização).
A VULNERABILIDADE PROCESSUAL CIVIL SOB UM ENFOQUE INTERSECCIONAL
Authors: MACHADO GISELE FERNANDES , MAPA AMANDA FARIA , GUZZO FABIANO REBUZZI
Published: December 2021

As normativas processualistas, na tentativa de viabilizar o acesso ao judiciário, criou mecanismos de atenuação das vulnerabilidades processuais, tais como: a inversão do ônus da prova, a possibilidade de ingresso do pleito em juízo sem advogado, concessão de gratuidade judiciária e atendimento jurídico especializado via Defensoria Pública. Desvela-se como o problema central do ensaio, a análise de tais normativas sob um viés crítico, visando detectar se as mesmas são eficientes na promoção de acesso à justiça e de igualdade processual aos litigantes vulneráveis, especialmente na situação pandêmica vivida pelo Brasil, que decorreu no fechamento de diversas instituições em razão do necessário isolamento social como medida preventiva. Adota-se como marco teórico, os conceitos e ponderações acerca da vulnerabilidade processual desenvolvidas por Fernanda Tartuce (2012). Apresenta-se como principal hipótese a insuficiência das normativas processualistas na tratativa das vulnerabilidades processuais. O objetivo principal desse ensaio consiste em contribuir para o fornecimento de uma visão crítica sobre as normativas processualistas direcionadas aos litigantes vulneráveis. A metodologia adotada, segundo Miracy Gustin (2015, p. 25) pertence à vertente jurídico-crítica que pressupõe a construção de uma teoria crítica da realidade, buscando conceder uma perspectiva interseccional da vulnerabilidade processual. O caminho metodológico percorrerá a análise de dispositivos pertencentes ao CPC e a Lei n.º 9.099/95, direcionados a proteção dos litigantes vulneráveis, buscando-se ao final conceder uma visão crítica sobre estas.

Palavras-chaves: Acesso ao Judiciário. Interseccionalidade. Vulnerabilidade processual. Pandemia.
O DIREITO FUNDAMENTAL À MORADIA ADEQUADA: UM DIREITO RESISTENTE À PANDEMIA
Authors: RIQUELME VÁZQUEZ PABLO , ALCARAZ SALGADO MARIA HYLMA
Published: December 2021

O Parecer emitido pelo Comitê de Direitos Econômicos, Sociais e Culturais da Organização das Nações Unidas, em decorrência da queixa apresentada por Mohamed Ben Djazia e Naouel Bellini contra Espanha, constitui o segundo pronunciamento deste órgão sobre o direito à moradia adequada enunciado no artículo 11.1 do Pacto Internacional de Direitos Econômicos, Sociais e Culturais. À luz deste Parecer, se analisam, no presente trabalho, alguns problemas jurídicos emergentes, especialmente os relativos à exigibilidade do direito à moradia adequada, à possibilidade de identificar um núcleo inviolável do direito e a íntima vinculação entre direitos sociais e dignidade humana. A aplicação das disposições normativas do Pacto pelo Comitê e os critérios interpretativos fixados constituem uma referência internacional para a construção dogmática do direito à moradia adequada mesmo em tempos de pandemia. Neste sentido, ressalta a atemporalidade da obrigação que incumbe ao Estado de proteger este direito.
ECTS: Enhanced Centralized TSCH Scheduling with Packet Aggregation for Industrial IoT
Authors: Michaelides Costas , Adame Toni , Bellalta Boris
Published: December 2021

The Industrial Internet of Things (IoT) has gained a lot of momentum thanks to the introduction of Time Slotted Channel Hopping (TSCH) in IEEE 802.15.4. At last, we can enjoy collision-free, low-latency wireless communication in challenging environments. Nevertheless, the fixed size of time slots in TSCH provides an opportunity for further enhancements. In this paper, we propose an enhanced centralized TSCH scheduling (ECTS) algorithm with simple packet aggregation while collecting data over a tree topology. Having in mind that the payload of a sensor node is rather short, we attempt to put more than one payload in one packet. Thus, we occupy just one cell to forward them. We investigated the schedule compactness of ECTS in Matlab, and we evaluated its operation, after implementing it in Contiki-NG, using Cooja. Our results show that ECTS with packet aggregation outperforms TASA in terms of slotframe duration and imposes fairness among the nodes in terms of latency. A validation exercise using real motes confirms its successful operation in real deployments.
Soc-IoT: A Proof-of-Concept for Citizen-Centric Environmental Monitoring
Authors: Mahajan Sachit
Published: December 2021

Cities around the world are struggling with environmental pollution. The conventional monitoring approaches are not effective for undertaking large-scale environmental monitoring due to logistical and cost-related issues. The availability of low-cost and low-power Internet of Things (IoT) devices has proved to be an effective alternative to monitor the ambient environment. Such systems have opened up environment monitoring opportunities to researchers and citizens while simultaneously confronting them with challenges like sensor accuracy, accumulation of large data sets, and data analysis, which itself is a formidable task that requires extensive computational resources and technical expertise. To address this challenge, a social, open-source, and citizen-centric IoT (Soc-IoT) framework is proposed that combines tools for real-time environmental sensing with an intuitive data analysis and visualization application. Soc-IoT has two main components: (1) CoSense Unit – a resource-efficient, portable and modular environment monitoring device intended for citizen sensing and complementing official environment monitoring infrastructure, and (2) exploreR – an intuitive cross-platform data analysis and visualization application that offers a comprehensive set of tools for systematic analysis of sensor data without any coding requirement. Developed as a proof-of-concept framework to monitor the environment at scale, Soc-IoT aims to promote environmental resilience and open innovation by reducing technological barriers.
An Expedient, Generalizable and Realistic Data-Driven Indoor Propagation Model
Authors: Bakirtzis Stefanos , Chen Jiming , Qiu Kehai , Zhang Jie , Wassell Ian
Published: December 2021

Efficient and realistic indoor radio propagation modelling tools are inextricably intertwined with the design and operation of next generation wireless networks. Machine learning (ML)-based radio propagation models can be trained with simulated or real-world data to provide accurate estimates of the wireless channel characteristics in a computationally efficient way. However, most of the existing research on ML-based propagation models focuses on outdoor propagation modelling, while indoor data-driven propagation models remain site-specific with limited scalability. In this paper we present an efficient and credible ML-based radio propagation modelling framework for indoor environments. Specifically, we demonstrate how a convolutional encoder-decoder can be trained to replicate the results of a ray-tracer, by encoding physics-based information of an indoor environment, such as the permittivity of the walls, and decode it as the path-loss (PL) heatmap for an environment of interest. Our model is trained over multiple indoor geometries and frequency bands, and it can eventually predict the PL for unknown indoor geometries and frequency bands within a few milliseconds. Additionally, we illustrate how the concept of transfer learning can be leveraged to calibrate our model by adjusting its pre-estimate weights, allowing it to make predictions that are consistent with measurement data.
Imperialismo e Classes Médias
Authors: Savella Fernando
Published: December 2021

Este artigo aborda o problema geral da relação entre as classes e o poder político nas formações sociais capitalistas na periferia do imperialismo. Tomando como base a teoria leninista acerca do imperialismo, argumentamos que as superestruturas do modo de produção capitalista nessas regiões também se desenvolvem de maneira distinta de suas contrapartes no capitalismo central, criando um espaço social restrito que, ainda que pautado na exclusão radical das massas, se desenvolve sobre a base ativa da classe média. Para isso mobilizamos autores como Agustín Cueva, Florestan Fernandes, Nicos Poulantzas e outros para apontar a anatomia desse espaço e sua função na economia política capitalista.
morte lhe cai bem
Authors: Corrêa Hugo , Sá Barreto Eduardo , Leite Leonardo
Published: December 2021

No artigo apresentamos uma interpretação sobre a relação entre crises, imperialismo e crítica social conectando dois períodos históricos distintos: o da formulação da teoria clássica do imperialismo e o período atual. Nosso objetivo foi entender como o marxismo respondeu à crise que levou à Primeira Guerra e como essa resposta poderia servir para enfrentarmos os impasses atuais. Destacamos que a pandemia de Covid-19, a emergência climática e as tensões imperialistas são dimensões entrelaçadas da crise contemporânea do capital, cujo paralelo com o processo histórico vivenciado pelo marxismo do começo do século passado deve ser encontrado na iminência da barbárie e na necessidade da crítica radical.
capital financeiro na origem do imperialismo
Authors: Sabadini Mauricio de Souza , De Campos Fábio Antonio
Published: December 2021

O objetivo deste artigo é discutir a categoria capital financeiro, tendo como referência sua utilização no debate clássico do imperialismo. Para isso, revisitaremos autores centrais da interpretação fundante do imperialismo, como Hilferding, Hobson, Bukharin, Rosa Luxemburgo, Kautsky e Lenin, procurando apontar as possibilidades e os limites da utilização desta categoria na apreensão de fenômenos específicos do capitalismo. Ao mesmo tempo, procuraremos também indicar a importância da mediação teórica para uma adequada compreensão das relações concretas do capital financeiro, de modo a historicizar a categoria dentro do contexto socioeconômico da época.
atualidade do imperialismo e a contribuição de Johan Galtung, 50 anos depois
Authors: Milan Marcelo
Published: December 2021

Este artigo defende a atualidade do imperialismo enquanto categoria analítica para se pensar o capitalismo contemporâneo e, neste sentido, a necessidade de se retomar uma contribuição indevidamente negligenciada pela literatura: a teoria estrutural do imperialismo de Johan Galtung, elaborada há cinquenta anos. Esta teoria remete ao papel da violência como a diferença entre capacidade potencial e realizada, e aborda as dimensões fundamentais do fenômeno (econômico, militar, comunicação, político e cultural), seus mecanismos e suas fases. Assim, para identificar possíveis lacunas que poderiam ser preenchidas pelo trabalho de Galtung, as abordagens clássicas e os estudos recentes do imperialismo são revisados de forma não exaustiva. Ao mesmo tempo, a teoria estrutural do imperialismo apresenta fragilidades epistemológicas e ontológicas que precisam ser sanadas, de forma que ela possa proporcionar instrumentos interpretativos mas também de ação política para enfrentar o capitalismo imperialista contemporâneo.
Reaching and Supporting Students with Disabilities in Study Abroad
Authors: Bivins Lexus
Published: December 2021

As universities develop strategies to simultaneously boost study abroad participation and diversify participants, they are devoting more attention to understanding the unique needs of underrepresented groups. This study explores the institutional barriers and support services for students with disabilities by the 25 American institutions that offer the most robust study abroad opportunities according to the Institute of International Education (IIE). The paper offers a new way of evaluating the support and resources currently targeted at students with disabilities, points out future research needs, and concludes with recommendations for practitioners.
Understanding Austria from Afar: Treating Regional Variation in the Virtu-al German as a Foreign Language Classroom.
Authors: Wirtz Mason
Published: December 2021

The COVID-19 pandemic has influenced nearly every aspect of the academic world, and study abroad is no exception. Particularly in the foreign language learning sector, the unprecedented switch from in-class lectures to distance learning brought with it many challenges. Not only were language instructors tasked with creating an interactive language learning atmosphere from afar but continuing to spark student motivation while catering to a broad range of learning goals constituted a seemingly insurmountable obstacle. The following case study therefore seeks to provide an easily adaptable and interactive task-based activity for the German as a foreign language classroom that should support learners in gaining a deeper understanding of the social dimensions and usages of Austrian regional varieties. Furthermore, the activity is designed so as to be applicable in both an online as well as face-to-face classroom and accommodate foreign language instructors with less experience in digital course delivery and/or minimal access to learning management systems. 

Abstract in German

Die COVID-19 Pandemie hat nahezu jeden Aspekt der akademischen Welt beeinflusst, und Study Abroad ist keine Ausnahme. Gerade im Bereich des Fremdsprachenerwerbs hat die beispiellose Umstellung von Präsenzunterricht auf Fernlehre viele Herausforderungen mit sich gebracht. Nicht nur wurden Fremdsprachenlehrer:innen mit der Aufgabe konfrontiert, eine interaktive Sprachlernatmosphäre aus der Ferne zu schaffen, sondern auch die Motivation der Schüler:innen trotz der Situation zu wecken, aufrechtzuerhalten und gleichzeitig ein breites Spektrum an Lernzielen zu berücksichtigen. Dies hat eine scheinbar unüberwindbare Hürde dargestellt. In der folgenden Fallstudie handelt es sich daher um die Bereitstellung einer leicht adaptierbaren und interaktiven task-based Aktivität für den Deutsch als Fremdsprachenunterricht, die Lernende dabei unterstützen soll, ein tieferes Verständnis der sozialen Dimensionen und Verwendungen österreichischer Regionalvarietäten zu erlangen. Darüber hinaus ist die Aktivität so konzipiert, dass sie sowohl im Online- wie auch im Präsenzunterricht Einsatz finden und von Fremd-sprachenlehrer:innen mit wenig(er) Erfahrung in der digitalen Abhaltung von Lehrveranstaltungen und/oder minimalem Zugang zu Lernmanagement-systemen umgesetzt werden kann.
U-Curve, Squiggly Lines or Nothing at All?
Authors: Viol Claus-Ulrich , Klasen Simon
Published: December 2021

Despite their controversial status in the current literature on sojourner adjustment, classical U-curve and four-stage models of culture shock continue to enjoy remarkable popularity. This study aims to investigate their validity by starting from (recollected) sojourner experience. Using a qualitative approach, we conducted semi-structured interviews with 50 students who had taken part in the European Erasmus exchange to see if any adaption patterns would emerge that tally with previous conceptions or offer alternatives to them. Our results show that neither moments of crisis or shock, nor any of the four stages or the typical culturally induced adjustment problems were generally reported. Accounts instead focused on success, personal growth, and a three-phase structure that divided the experience mainly in terms of social contacts and eventfulness. Furthermore, emotional ambivalence emerged as a distinctive feature throughout the entire stay. We propose that the specific characteristics of the Erasmus experience account for some of our results. Students’ close relationship with their international peers, which is one of these features, may thus facilitate cultural adaptation. Abstract in Spanish A pesar de su estado controvertido en la literatura actual sobre la adaptación de todos los que pasan tiempo en el extranjero, los modelos clásicos de choque cultural de curva en U y de cuatro etapas continúan tener una gran popularidad. Este estudio tiene como objetivo investigar su validez partiendo de la experiencia (recordada) de un residente temporal. Aplicando un enfoque cualitativo, realizamos entrevistas semiestructuradas con 50 estudiantes que habían participado en el intercambio europeo Erasmus para ver si surgía algún patrón de adaptación que coincidiera con concepciones anteriores u ofreciera alternativas a las mismas. Nuestros resultados muestran que, en general, no se informaron momentos de crisis o choque, ni ninguna de las cuatro etapas o los típicos problemas de adaptación culturalmente inducidos. Las representaciones, en cambio, muestran el éxito de los estudiantes, el crecimiento personal y una estructura de tres fases que dividió la experiencia principalmente en términos de la densidad de eventos y contactos sociales. Además, una ambivalencia emocional emergió como un rasgo distintivo durante toda la estancia. Proponemos que las características específicas de la experiencia Erasmus dan cuenta de algunos de nuestros resultados. Para dar un ejemplo, parece seguro que las relaciones de los estudiantes con sus compañeros internacionales de estudios facilitan la adaptación cultural.
Community Engagement Abroad: Perspectives and Practices on Service, Engagement, and Learning Overseas
Authors: Laird Laurie
Published: December 2021

Community Engagement Abroad: Perspectives and Practices on Service, Engagement, and Learning Overseas, edited by Pat Crawford and Brett Berquist, is a valuable contribution to the literature on global community engagement and study abroad, charting one institution’s history and practice from a variety of perspectives.
Analisis Keberlanjutan Usaha Pertanian Bawang Merah Kabupaten Malaka Dari Aspek Ekonomi, Sosial Dan Lingkungan
Authors: Servinus Leki Melianus , Arnold Nalle Agus , Anthonius Anthonius
Published: December 2021

Latar belakang: Pembangunan merupakan proses gerak maju dalam lingkangaran kehidupan masyarakat. Pada sektor pertanian pembangunan bertujuan untuk kesejahteraan manusia. Proses pembangunan pertanian dengan berbagai metode kontkstual terjadi dalam lingkaran kehidupan manusia yang berhubungan dengan aspek ekonomi, sosial dan lingkungan. Ketiga aspek kehidupan yang melingkari perkembangan manusia tersebut mesti menjadi pertimbangan dalam pembangunan baik, nasional maupun lokal agar pembangunan yang dimaksud masuk dalam kategori berkelanjutan. Kabupaten Malaka sejak terbentuk menjadi DOB yang defenitif memberi perhatian pada pembangunan pertanian dengan program primadona yakni Revolusi Pertanian Malaka (RPM). RPM mengusung metode pembangunan pertanian sebagai sebuah proses menuju perubahan dalam pertanian. Metode: Metode pendampingan tim ahli, pemanfaatan teknologi pertanian, pemilihan bibit unggul dan subsidi lain sebagai input produksi khusus budidaya bawang merah merupakan senjata ampuh dalam menggapai tujuan akhir mencapai kesejahteraan. Hasil: Konteks pembanganunan ini dihadapankan pada asas keberlanjutan yang mesti meliputi aspek ekonomi, sosial dan lingkungan. Oleh karena itu tujuan dari penelitian ini adalah menganalisa keberlanjutan dari usaha pertanain bawang merah Kabupaten Malaka dari aspek sosial, ekonomi dan lingkungan. Untuk dapat menggetahui dan menganalisi status keberlanjutan dari usaha pertanian bawang merah tersebut menggunakan alat analisis MDS. Kesimpulan: Alat analisis ini digunakan untuk mengetahui status keberlanjutan dari ketiga aspek dari usaha pertanian bawang merah yang dimaksud. Hasil analisis keberlanjutan dari usaha pertanian bawang merah Malaka tersebut termasuk dalam kategori atau status kurang berkelanjutan dengan nilai 45.78. Nilai tersebut menjadi acuan dalam menarapkan rencana tindaklanjut dari usaha pertanian bawang merah Kabupaten Malaka.