bluuebunny/crossref_metadata_2025 huggingface dataset:
EpCAM is critical for tumor proliferation and oxaliplatin chemoresistance in EpCAMhigh/CD44+ colorectal cancer stem cells
Authors: Qi Yanmei , Zhou Fengqiang , Geng Zhen , Ding Baozhong , Liu Lei
Published: July 2022

Objectives

A small subpopulation of colorectal cancer stem cells (CSCs) possess the ability to self-renew and the capacity to initiate the original tumor. EpCAMhigh/CD44+ cells are regarded as CSCs in colorectal cancer. The present study was undertaken to investigate the significance of EpCAM in the in vitro proliferation ability and oxaliplatin chemoresistance of EpCAMhigh/CD44+ colorectal CSCs.

Methods

We applied fluorescence-activated cell sorting (FACS) to separate the EpCAMhigh/CD44+ subset from human colorectal cancer cell line HCT116. We also used siRNA targeting EpCAM to create EpCAM−/CD44+ subpopulation. Then we compared EpCAMhigh/CD44+ cells and EpCAM−/CD44+ cells for proliferation ability and the chemoresistance to oxaliplatin by CCK8 assay.

Results

The EpCAMhigh/CD44+ subset comprises almost 6.25 ± 0.09% in cell line HCT116, and the EpCAM−/CD44+ cells displayed a significantly lower proliferation ability and weaker oxaliplatin chemoresistance than the EpCAMhigh/CD44+ cells.

Conclusions

EpCAM is critical for tumor proliferation and oxaliplatin chemoresistance in EpCAMhigh/CD44+ colorectal CSCs.
The Role of Strength on Punch Impact Force in Boxing
Authors: Beattie Kris , Ruddock Alan D.
Published: July 2022

Beattie, K and Ruddock, AD. The role of strength on punch impact force in boxing. J Strength Cond Res 36(10): 2957–2969, 2022—The ability to punch with a high impact force is beneficial to boxers as there is an increased likelihood of success. Punch impact force differentiates between performance level, weight class, gender, and punch type in competitive boxers. Although technique is likely to play a major role in punch impact force, the capabilities of the neuromuscular system may also be a limiting factor. This review examines the role of strength on punch impact force in amateur and professional boxers. The maximal strength qualities of the lower body, as well as explosive strength qualities of both the upper and lower body, are largely associated with punch impact force in elite amateur boxers. Specifically, elite amateur boxers who punch with “high” impact forces have greater levels of lower-body maximal strength and explosive strength when compared with elite amateurs who punch with “low” impact forces. However, the maximal strength capabilities of the upper body are not associated with punch impact force and does not differentiate between elite boxers who punch with “high” and “low” impact forces. Therefore, based off the present evidence, this review recommends that for boxers who aim to develop their punch impact force, it may be advantageous to emphasize both maximal and explosive strength development of the legs, with only an explosive strength focus in the upper body. However, it is important to highlight that, to date, there are a lack of experimental studies in both elite amateur and professional boxing. Furthermore, there is a dearth of research in female boxing. Future experimental studies are needed to infer causality regarding the role that strength training has on punch impact force in both elite amateur and professional boxers.
Influence of the Menstrual Cycle on Muscle Glycogen Repletion After Exhaustive Exercise in Eumenorrheic Women
Authors: Matsuda Tomoka , Takahashi Hideyuki , Nakamura Mariko , Ogata Hazuki , Kanno Moe , Ishikawa Akira , Sakamaki-Sunaga Mikako
Published: July 2022

Matsuda, T, Takahashi, H, Nakamura, M, Ogata, H, Kanno, M, Ishikawa, A, and Sakamaki-Sunaga, M. Influence of the menstrual cycle on muscle glycogen repletion after exhaustive exercise in eumenorrheic women. J Strength Cond Res 37(4): e273–e279, 2023—The purpose of this study was to investigate the effect of the menstrual cycle on muscle glycogen repletion postexercise. Eleven women with regular menstrual cycles (age: 20.2 ± 1.3 years, height: 161.1 ± 4.8 cm, and body mass: 55.5 ± 5.7 kg) were assessed in 3 phases of the cycle: the early follicular phase (E-FP), late follicular phase (L-FP), and luteal phase (LP). Each test day began with glycogen-depleting exercise, followed by 5 hours of recovery. Muscle glycogen concentrations, using 13C-magnetic resonance spectroscopy, and estradiol, progesterone, blood glucose, blood lactate, free fatty acid (FFA), and insulin concentrations were measured at t = 0, 120, and 300 minutes postexercise. During the 5-hour recovery period, subjects consumed 1.2g·(kg body mass)−1·h−1 of carbohydrates every 30 minutes. The muscle glycogen concentrations increased at t = 120 and t = 300 minutes postexercise (p < 0.01) but were not significantly different between the menstrual cycle phases (p = 0.30). Blood lactate concentrations were significantly higher in the L-FP and LP than in the E-FP (p < 0.05). Nonetheless, the blood glucose, FFA, insulin concentrations, and the exercise time until exhaustion in the E-FP, L-FP, and LP were similar (blood glucose, p = 0.17; FFA, p = 0.50; insulin, p = 0.31; exercise time, p = 0.67). In conclusion, the menstrual cycle did not influence muscle glycogen repletion after exercise.
Gender- and Sport-specific Normative Anthropometric and Physical Values in Talent-Identified High School Athletes
Authors: Larkin Paul , Sortino Benjamin , Carlon Todd , Saunders Trent , Pane Calvin
Published: July 2022

Larkin, P, Sortino, B, Carlon, T, Saunders, T, and Pane, C. Gender- and sport-specific normative anthropometric and physical values in talent-identified high school athletes. J Strength Cond Res 37(3): 606–615, 2023—Youth sport is associated with the identification and promotion of athletes within talent development pathways, with anthropometric and physical performance measures being key assessment and monitoring tools. To adequately evaluate performance within a population, normative reference data are needed; however, currently, there is limited normative values of talent-identified youth athletes. The aim of the current study is to present normative values of talent-identified youth sport academy athletes in relation to gender, age, and sport. Over a 5-year period, a total of 794 talent-identified youth athletes who attended a specialized school sports academy were assessed using anthropometric (i.e., heigh,; body mass) and physical performance (i.e., vertical jump, 20-m sprint, Yo-Yo intermittent recovery test 1) measures. In total, 451 male and 343 female athletes (grade 7: 12–13 years; grade 8: 13–14 years; grade 9: 14–15 years; grade 10: 15–16 years) were tested annually. The result demonstrates that for each gender, as age increases, there is a general increase in anthropometric measures (i.e., height and body mass). Furthermore, with increasing age, athletes generally have a higher vertical jump, faster sprint performance, and improved physical endurance. The results highlight sport-specific differences for each measure. Overall, the results of the study provides age-, gender-, and sport-specific normative data of talent-identified youth athletes. These findings provide representative performance profiles of talent-identified high school athletes, with the values potentially being used by coaching staff (i.e., head coaches, strength and conditioning coaches, rehabilitation staff) for comparison purposes.
Research on Mix Design and Construction Application of Roller Compacted Concrete in Base
Authors: Zhong Yixiong , Yao Jialiang , Lin Jun , Yao Ding
Published: July 2022

To address the problems of segregation, cracking, and poor flatness of the roller compacted concrete (RCC) used in the base of the construction, this research takes the Qinglian highway rehabilitation project as the research object. Based on the filling and wrapping method, the surplus parameters of cement slurry and the surplus parameters of mortar are introduced, and the method is used to design the mix ratio of RCC. The mixing ratios of the mixture were designed by the orthogonal test method. In this research, Vebe time, compactness, 28 days flexural strength, and compressive strength were used as the evaluation indicators for each mix ratio specimen. The test results show that the optimum Vebe consistency (VC) value is 33 s, which provides good compactivity; the degree of compaction is 98.5 %, which provides good workability; the appropriate amount of cement is 190 kg/m3, which not only meets the strength requirements but also reduces the occurrence of road distresses. This research combines the practical project with mixture ratio design and uses the indicators recommended in the design process to propose methods to reduce road quality problems and to provide a scientific basis for RCC construction control.
A Rare Cause of Right Heart Failure in An Adult: Congenital Gerbode Defect
Authors: Al-Sarraf Nael , Hasan Mohammed , Ahmad Noof B. , Alhumaidan Ali
Published: July 2022

Gerbode defect is a rare defect describing a left ventricle to right atrium shunt with symptoms dependent on the size and degree of the shunt. It is either a congenital defect detected in infancy, or an acquired case reported in older age. Diagnosis by means of echocardiography and cardiac magnetic resonance imaging is of paramount importance before surgical correction is contemplated to achieve a good prognosis.
Implementation of a Pediatric Emergency Department Cardiopulmonary Resuscitation Quality Bundle
Authors: Runkle Anne P. , Gray James , Cabrera-Thurman Mary K. , Frey Mary , Hoehn Erin F. , Kerrey Benjamin T. , Vukovic Adam A.
Published: July 2022

BACKGROUND AND OBJECTIVES

We have previously demonstrated that standardized handoff from prehospital to hospital clinicians can improve cardiopulmonary resuscitation performance for out-of-hospital cardiac arrest (OHCA) patients in a pediatric emergency department (ED). We leveraged our previous quality improvement initiative to standardize performance of a bundle of 5 discrete aspects of resuscitation for OHCA patients: intravenous or intraosseous catheter (IV/IO) access, epinephrine administration, advanced airway placement, end-tidal capnography (ETCO2) application, and cardiac rhythm verbalization. We aimed to reduce time to completion of the bundle from 302 seconds at baseline to less than 120 seconds within 1 year.

METHODS

A multidisciplinary team performed video-based review of actual OHCA resuscitations in our pediatric ED. We designed interventions aimed at key drivers of bundle performance. Interventions included specific roles and responsibilities and a standardized choreography for each bundle element. To assess the effect of the interventions, time to performance of each bundle element was measured by standardized review of video recordings from our resuscitation bay. Balancing measures were time off the chest and time to defibrillator pad placement.

RESULTS

We analyzed 56 cases of OHCA from May 2019 through May 2021. Time to bundle completion improved from a baseline of 302 seconds to 147 seconds. Four of 5 individual bundle elements also demonstrated significant improvement. These improvements were sustained without any negative impact on balancing measures.

CONCLUSIONS

Standardized choreography for the initial minutes of ED cardiac arrest resuscitation shows promise to decrease time to crucial interventions in children presenting to the pediatric ED with OHCA.
STUDY OF THE INFLUENCE OF THE Si/Mn CONTENT RATIO ON THE DENDRITIC STRUCTURE OF STEELS FOR RAILWAY AXLES
Authors: Babachenko О. , Balakhanova Т. , Safronova O. , Kononenko G.
Published: July 2022

Purpose. Investigation of the effect of different total concentration and ratio of Si and Mn content on the dendritic structure and segregation inhomogeneity of cast carbon steel and its transformation after hot plastic deformation.

Methods of research. To determine the effect of the content of Si and Mn, experimental ingots with a variable chemical composition within the grade were made for three steel grades used for the manufacture of railway axles – grade OS according to DSTU 31334, F according to AAR M 101 and EA1N according to EN 13261. To determine the dendritic structure microstructural analysis was used after etching in sodium picrate.

Results. A comparative analysis of the microstructure of the experimental heats of steels with a variable chemical composition has been carried out. The ratio of content in steel Si and Mn in the cast state and after deformation is established. A significant effect of the total deoxidation in steel on the formation of microhardness inhomogeneity over the cross section of a carbon steel ingot and microinhomogeneity of the structure of individual sections is shown. It was found that after deformation, the central zones turned out to be the most worked out (especially for steel with a chemical composition within the EA1N grade, characterized by an increased content of Mn).

Scientific novelty. The study of the influence of fluctuations in the content of the basic elements of carbon steel leads to the development of ideas about the formation of a dendritic structure and segregation heterogeneity in railway axle steels.

Рractical value. Knowledge of the principles of segregation formation is necessary to determine further modes of deformation and heat treatment not only for continuously cast billets or ingots, but also for final products.
REGULARITIES OF INFLUENCE OF CHEMICAL COMPOSITION ON MORPHOLOGYAND TYPE OF CARBIDES IN NICKEL-BASED SUPERALLOY
Authors: Glotka O. , Greshta V. , Ol’shanetskii V.
Published: July 2022

Purpose. It consists in optimizing the chemical composition and morphology of carbides of the welded nickel-based superalloy by changing the chemical composition, which allows to increase the performance properties of body parts by improving the shape and size of the carbide component.

Methods of  research Process modeling was performed by CALPHAD method. The initial data were the chemical compositions of model alloys with different concentrations of carbide-forming elements. The result of the calculation was the chemical compositions of carbides released in the respective systems. The experimental values were processed by the method of least squares to obtain correlation dependences of the "parameter-property" type and to establish mathematical equations of regression models that optimally describe these dependences.

Results. Regularities of influence of chemical composition of metal on morphology and type of carbides are established. It is shown that depending on the introduced chemical elements in the system, the types of carbides and their chemical composition can change, which leads to a reduction of crack formation processes in the material. It is shown that the change in the composition of the material affects the shape, size and composition of the primary carbides.

Scientific novelty. The established dependences of the multicomponent system Ni-22,5Cr-19Co-1,9Al-3,7Ti-2W-1,4Ta-1Nb-0,15C allow to determine the chemical composition of carbides by the chemical composition of the alloy. This makes it possible to change the types of carbides, their composition and morphology, thereby improving the mechanical properties of the material, first of all the fatigue and heat-resistant characteristics.

Practical value. An effective solution for establishing the structural-phase state of nickel-based superalloys by optimizing their chemical composition, which allowed to improve the performance properties of the material. The established dependences can be used in optimizing the composition of industrial nickel-based superalloys and in the development of new compositions.
INCREASING THE MECHANICAL PROPERTIES OF LOW-CARBON LOW-ALLOY STEELS BY NORMALIZING AND QUENCHING WITH A STANDBY IN THE INTERCRITICAL INTERVAL OF TEMPERATURES
Authors: Malinov L. , Malinov V. , Burova D.
Published: July 2022

Purpose. The possibility of increasing the mechanical properties of the investigated structural steels by using technologies including holding in ICIT, as well as heating to a typical temperature of austenitization before or after holding in ICIT is shown.

Methods of research. Durometric, metallographic and X-ray research methods were used. The tensile properties and impact strength were determined. These properties were compared with those obtained for the studied steels after a typical heat treatment.

Results. It is shown that the technologies of normalization and quenching with holding in ICIT, as well as heating before or after it to a typical austenitizing temperature increasing of the mechanical properties of the studied steels in comparison with theirs level after a typical heat treatment.

Scientific novelty. Innovative technologies of normalization and quenching, which includs holding in ICIT, as well as heating before or after it to a typical austenitizing temperature, were used and showed their effectiveness.

Practical value. The technologies of normalization and quenching, which includs holding in ICIT, as well as heating before or after it to the typical temperature of austenitization are proposed for practical application
Analytical Review of Methods for Solving Data Scarcity Issues Regarding Elaboration of Automatic Speech Recognition Systems for Low-Resource Languages
Authors: Kipyatkova Irina , Kagirov Ildar
Published: July 2022

In this paper, principal methods for solving training data issues for the so-called low-resource languages are discussed, regarding elaboration of automatic speech recognition systems. The notion of low-resource languages is studied and a working definition is coined on the basis of a number of papers on this topic. The main difficulties associated with the application of classical approaches to automatic speech recognition to the material of low-resource languages are determined, and the principal methods used to solve these problems are outlined. The paper discusses the methods for data augmentation, transfer learning and collection of new language data in detail. Depending on specific tasks, methods for audio material and text data augmentation, transfer learning and multi-task learning are distinguished. In Section 4 of the paper the current information support methods, databases and the basic principles of their architecture are discussed with regard to low-resource languages. Conclusions are drawn about the justification of augmentation and knowledge transfer methods for languages with low information support. In the case of unavailability of language data or structurally similar parent models, the preferred option is to collect a new database, including the crowdsourcing technique. Multilanguage learning models are effective for small datasets. If big language data are available, the most efficient method is transfer learning within a language pair. The conclusions made in the course of this this review will be applied to the data of the low-resource Karelian language, for which an automatic speech recognition system has been being created by the authors of this paper since the beginning of the year 2022.
Attracting private investments for infrastructure in Brazil
Authors: Yamahaki Camila , Breviglieri Gustavo Velloso
Published: July 2022

Abstract This study sought to identify the main drivers of and barriers to attracting capital market investments to the infrastructure sector in Brazil. The research findings indicate that the incentives vary according to the type of investor. Individual investors are strongly attracted by the tax exemption provided for in Statute 1,2431/2011 to purchase incentivized debentures, and, today, they represent one of the main investors in infrastructure in the country. On the other hand, domestic pension funds have no incentives based on this piece of legislation (their investments are exempt from income tax). For these pension funds, the spread paid by the issuers of incentivized debentures is low. Foreign investors consider the investment environment in the country to be unfavorable due to factors such as high exchange rate volatility and political instability. Therefore, broader institutional reforms are needed to fill the gap in infrastructure investments and attract long-term investors. Green certification of infrastructure projects represents another interesting strategy for attracting investments, especially foreign investors.
Time trend and spatial distribution of the cases of lethal violence against women in Brazil
Authors: Moroskoski Márcia , Brito Franciele Aline Machado de , Oliveira Rosana Rosseto de
Published: July 2022

Abstract Objective: to analyze the time trend and the spatial distribution of the cases of lethal violence against women in Brazil, according to age group and to race/skin color. Method: an ecological study of time series, with spatial distribution of the deaths of women victims of aggression, registered in the Mortality Information System, resident in Brazil, Brazilian geographic regions and states. Due to underreporting of deaths in some states, correction factors of the mortality rates were employed. For the trend analysis, we adopted the polynomial regression model. In addition to that, the mean rates and annual upward/downward trends were distributed considering the Brazilian federative units as analysis units. Results: the mean rate was 6.24 cases of lethal violence per 100,000 women, with a significant variation across the Brazilian regions and states. The main victims of violent death in Brazil are young, black-/brown-skinned and indigenous women, with a growing trend in these population segments. The North and Northeast regions stood out with the most significant mean annual increases (0.33; r2= 0.96 and 0.26; r2= 0.92, respectively). Conclusion: there was a stable trend regarding lethal violence against women, with significant regional differences. Young, black-/brown-skinned and indigenous women are more vulnerable to violent death in Brazil.
COVID-19 in Brazil: Are there any differences in Mental Health Literacy between young and aged men?
Authors: Moreira Wanderson Carneiro , Sousa Anderson Reis de , Cardoso Rachel da Silva Serejo , Queiroz Aline Macêdo de , Oliveira Marcia Aparecida Ferreira de , Sequeira Carlos Alberto da Cruz
Published: July 2022

Abstract Objective: to analyze the Mental Health Literacy of young and aged men living in Brazil in the COVID-19 pandemic context. Method: a qualitative study conducted with 87 men by means of an asynchronous online survey. The data were processed in the NVIVO12® software, structured with the Collective Subject Discourse method and analyzed through Anthony Jorm’s theoretical concept of Mental Health Literacy. Results: six central ideas emerged from the analysis of a synthesis discourse on the components of the Mental Health Literacy, namely: Ability to recognize specific disorders or different types of psychological distress; Knowledge and beliefs about risk factors and causes; Knowledge and beliefs about self-help interventions; Knowledge and beliefs about available professional help; Attitudes that facilitate recognition and the search for adequate help; and Knowledge on how to seek information on mental health. Conclusion: there are differences in the mental health literacy of young and aged men living in Brazil during the COVID-19 pandemic. Aged men were more competent for mental health care management and protection than young men, in relation to the Mental Health Literacy levels.
COVID-19 en Brasil: ¿Hay diferencias entre la alfabetización en salud mental de los hombres jóvenes y la de los mayores?
Authors: Moreira Wanderson Carneiro , Sousa Anderson Reis de , Cardoso Rachel da Silva Serejo , Queiroz Aline Macêdo de , Oliveira Marcia Aparecida Ferreira de , Sequeira Carlos Alberto da Cruz
Published: July 2022

Resumen Objetivo: analizar la Alfabetización en Salud Mental de hombres jóvenes y mayores residentes en Brasil en el contexto de la pandemia de COVID-19. Método: estudio cualitativo, realizado con 87 hombres, mediante survey online asincrónica. Los datos fueron procesados usando el software NVIVO12®, estructurados usando el método del Discurso del Sujeto Colectivo y analizados usando el concepto teórico de Alfabetización en Salud Mental de Anthony Jorm. Resultados: del análisis de un discurso síntesis sobre los componentes de la Alfabetización en Salud Mental, surgieron seis ideas centrales: capacidad para reconocer trastornos específicos o diferentes tipos de sufrimiento psíquico; conocimiento y creencias sobre factores y causas de riesgo; conocimiento y creencias sobre las intervenciones de autoayuda; conocimiento y creencias sobre la ayuda profesional disponible; actitudes que facilitan el reconocimiento y la búsqueda de ayuda adecuada; y conocimiento sobre cómo buscar información sobre salud mental. Conclusión: hay diferencias entre la Alfabetización en Salud Mental de los hombres jóvenes y la de los mayores que vivían en Brasil durante la pandemia de COVID-19. Los hombres mayores fueron más competentes para gestionar el cuidado y proteger su salud mental que los hombres jóvenes, según los niveles de Alfabetización en Salud Mental.
Authentic Leadership Questionnaire aplicado a enfermeros brasileños: evidencias de validez
Authors: Maziero Vanessa Gomes , Rocha Fernanda Ludmilla Rossi , Campos Juliana Alvares Duarte Bonini , Dias Bruna Moreno , Balsanelli Alexandre Pazetto , Gabriel Carmen Silvia , Bernardes Andrea
Published: July 2022

Resumen Objetivo: estimar las propiedades psicométricas del Authentic Leadership Questionnaire (ALQ) aplicado a enfermeros brasileños. Método: estudio observacional transversal con muestreo no probabilístico. Las propiedades psicométricas de las versiones RATER y SELF del ALQ se estimaron mediante análisis factorial confirmatorio con el método de estimación robusta WLSMV. Como índices de calidad de ajuste de los modelos se utilizó: razón de chi-cuadrado por grados de libertad (χ2/gl), Tucker-Lewis Index (TLI), Comparative Fit Index (CFI), Root Mean Square Error of Approximation (RMSEA) y Standardized Root Mean Squared Residual (SRMR). La confiabilidad de los datos se analizó mediante el coeficiente alfa ordinal y la confiabilidad compuesta. Resultados: participaron 181 enfermeros (sexo femenino: 80,1%; edad media de 34,6 años; tiempo de trabajo inferior a cinco años: 76,3%). Los modelos completos ALQ RATER y ALQ SELF no mostraron un ajuste adecuado. Por lo tanto, el modelo refinado presentó un mejor ajuste para la muestra (ALQ RATER: χ2/gl=2,77; CFI=0,97; TLI=0,97; RMSEA=0,10; SRMR=0,05; ALQ SELF: χ2/gl=2,74; CFI=0,94, TLI=0,92, RMSEA=0,10, SRMR=0,08). En el modelo ALQ RATER se eliminaron los ítems 1, 7 y 13. Debido a la alta correlación entre los factores Transparencia Relacional y Perspectiva Moral, se propuso un modelo de tres factores basado en la unión de los factores mencionados anteriormente. En el modelo ALQ SELF se eliminaron los ítems 2, 5, 9 y 10. Asimismo, se propuso un modelo trifactorial basado en la unión de dos factores, ahora denominado Equilibrio de Autoconciencia. Conclusión: los datos obtenidos con el Authentic Leadership Questionnaire con enfermeros brasileños fueron válidos y confiables.
Antibacterial effect of Asphodelus fistulosus aqueous and ethanolic crude extracts on gram positive and gram negative bacteria
Authors: Al-Qudah M. M. A.
Published: July 2022

Abstract Asphodelus fistulosus (A. fistulosus) is a wild plant grows in Jordan. Traditionally, it is used to treat different medical conditions and diseases such as respiratory ailments, against burns and dermatomucosal infections.This study aims to find out the effects of A. fistulosus aqueous and ethanolic crude extracts on Staphylococcus aureus(S. aureus) as gram positive bacteria and Escherichia coli (E. coli) as gram negative bacteria and to investigate which one will be affected either by aqueous and/or ethanolic crude extracts of A. fistulosus shooting parts that were collected from Jerash in the north of Jordan. Agar well diffusion method was used to evaluate the antibacterial activity of the crude extracts. In addition, MIC (minimum inhibitory concentration) as well as MBC (minimum bactericidal concentration) were determined against both types of bacteria. The results showed that flower aqueous extract of A. fistulosus was very effective against E. coli (20.0 ± 0.50) mm and caused a (14.0 ± 0.50) mm inhibition to S. aureus. The ethanolic extract of stem was very effective cauesed a (19.0 ± 0.50) mm inhibition in both bacterial species. Respectively, both S. aureus and E. coli were inhibited by ethanolic and aqueous extracts (mixture1 and mixture2) (15.0 ± 0.00 mm and 10.5 ± 0.50 mm). The highest antimbacterial activity was observed for the leaves aqueous extract against E.coli (0.06120 mg/mL). The obtained MIC values from A. fistulosus parts extracts demonstrated antibacterial activity ranged between 7.606 and 0.06120 mg/mL. The highest antimicrobial activity was recorded in the leaves aqueous extract against E. coli.The MBC value of stem aqueous extract was 5.00 mg/mL against both S. aureus and E. coli. On the other hand, ethanolic and aqueous extracts of the leaves gave MBC values 5.00 mg/mL, and 0.156 mg/mL, respectively, against E. coli.Based on the results of this study, it can be concluded that there is good inhibitory effect of aqueous and ethanolic of A. fistulosus shooting parts extracts on growth of E. coli and S. aureus. Adding to that, stem ethanolic extract has the most effective against S. aureus while aqueous extract of flower has the most effective against E. coli.So, it is recommended to have further future studies on the A. fistulosus shooting parts crude extract bioactive components and the mechanism of how these constituents affect these types of bacteria.
Physicochemical, microbiological and parasitological analysis of water for human consumption in a quilombola community in Alagoas
Authors: Correia M. S. , Santos E. N. A. , Magalhães P. K. A. , Santos A. M. , Messias M. I. C. S. de , Santos Júnior J. C. , Carvalho Neto A. P. M. , Souza M. A. , Fonseca S. A. , Ferreira Júnior G. C. , Cavalcanti M. G. S. , Costa J. G. , Miranda P. R. B. , Rocha T. J. M.
Published: July 2022

Abstract Water is the indispensable natural resource for all living beings. For human consumption, it must be potable, so as not to pose a risk to health, and can be used for ingestion, food preparation and personal hygiene. Knowing this importance, this study aimed to carry out physical-chemical, microbiological and parasitological analyzes of water for human consumption in a quilombola community of Santa Luzia do Norte in Alagoas. A cross-sectional, experimental and quantitative study was carried out between January and December 2019. The physical-chemical parameters of residual chlorine, turbidity, fluoride, fluoridation, color and pH were analyzed, microbiological analyses were based on the research of total and thermotolerant coliforms (E. coli) and parasitological analyses were performed based on the research of protozoa and intestinal helminths. Some physical-chemical parameters (turbidity and pH) were observed outside the limits required by the Ministry of Health, and the presence of total coliforms in some of the analyzed samples (17.85%), characterizing this community at risk related to waterborne diseases. The samples analyzed did not present infecting forms of parasitic species. Regarding the variables evaluated, the results found showed that the lack of adequate basic sanitation affects the quality of water used for human consumption by the quilombola population of Santa Luzia do Norte-AL.
Connection with Nature in children’s reference adults
Authors: Paz Damaris Teixeira , Zacarias Elisa Ferrari Justulin , Higuchi Maria Inês Gasparetto
Published: July 2022

Abstract Positive experiences with nature during childhood are a strong predictor of Connection with Nature (CWN) throughout life, which has a strong explanatory factor of integral well-being and pro-environmental behavior. The objective of this study was to verify the CWN level of adults and the frequency with which they promote contact with nature to the children in their care. The research protocol included two CWN scales, questions about contact with nature, and sociodemographic data. Thus, 58 parents and 150 teachers of basic education from public schools in Manaus-AM participated in the study. Results showed these adults’ education area, age group, and frequency of contact with green areas are significant to differentiate their CN levels. Area of education is also an important factor in determining how often parents and teachers take children to green areas.
Exposição à poluição durante a gestação e ocorrência de abortamento espontâneo
Authors: Silva Vanalda Costa , Pires Rômulo Cesar Rezzo , Silva Hevellyn Esther Pereira , Lopes Élida Maria dos Santos , Lira Álvaro Henrique Andrade , Pestana Adauto Luis Moraes , Nunes Jorge Luiz Silva
Published: July 2022

Resumo Realizou-se um estudo transversal para estimar a prevalência de abortamento espontâneo em 360 mulheres distribuídas em área de maior e menor exposição à poluição atmosférica proveniente do tráfego de veículos na Ilha de São Luís-MA e identificação de variáveis associadas. As participantes foram entrevistadas e os dados coletados foram submetidos à regressão logística bivariada e multivariada. A prevalência geral de aborto espontâneo foi 15,83%, correspondendo a 25,56% (n=180) na área de maior exposição e 6,11% (n=180) na área de menor exposição. Associaram-se ao aborto espontâneo o etilismo materno (OR=3,11), a presença de IST na gestação (OR=2,74), viver na área de alta exposição (OR=8,32), ter sofrido violência física ou psicológica na gestação (OR=4,25) e a ocorrência de abortamento de repetição (OR=39,11). Os resultados apontam para uma possível contribuição da poluição do ar proveniente do tráfego de veículos como fator de risco na etiologia do aborto espontâneo.
Socio-environmental comparison in indigenous agricultural productive systems: Tontotuna, Totoró-Colombia and Tsotsil, Chamula-Mexico
Authors: Serna Martha Lucía Ordóñez , Diago Olga Lucía Sanabria
Published: July 2022

Abstract A comparison of the conservation practices associated with the management of the family agricultural production system called the Trau Misak garden and the Patchocona garden is presented. in the indigenous peoples of the Tontotuna Reservation, Municipality of Totoró-Cauca-Colombia and the Tsotsil people, Municipality of Chamula-Chiapas-México, respectively. The methodology was framed in hermeneutics and was based on ethnobotany, interrelating the axes of time, space and culture. Given the holistic and complex nature of this research, ethnography and participatory action research were used with descriptive techniques for the dynamics of use and management of plant resources in Trau Misak and Patchocona’. The results present the comparative transformation strategies that are generated and used in Trau Misak and Patchocona ‘, strengthening the identity of each indigenous people, facing the problems of survival and contributing to the reduction of hunger, by laying the foundations for food security.
How Nature Affects The Behavior of ADHD Children: A Case Study in Northeastern Brazil
Authors: Damasceno Mônica Maria Siqueira , Mazzarino Jane Marcia , Figueiredo Aida
Published: July 2022

Abstract The present study involves children diagnosed with Attention Deficit Hyperactivity Disorder (ADHD) from public schools of the municipality of Crato - CE, northeastern region of Brazil. The overall objective was to analyze the profiles of six children, before and after interventions with nature, in order to identify potential changes in behavior resulting from experiencing direct contact with nature. The method used is exploratory and descriptive, and it is a multiple case study with an action-research character. The results showed changes in behavior with mitigated ADHD symptoms regarding cognitive and socio-affective aspects. Among other behavioral aspects, higher motivation for studying, better understanding and adaptation to rules, extended states of tranquility, higher receptivity to social contact, decreased aggressiveness, hyperactivity, impulsivity, and higher tolerance to oneself and others were noticeable.
Mudanças climáticas e a contribuição da tecnologia de CCS para os desafios da mitigação do clima
Authors: Araujo Israel Lacerda de , Costa Hirdan Katarina de Medeiros , Makuch Zen
Published: July 2022

Resumo O principal desafio recente tem sido o problema das emissões de e gases de efeito estufa (GEE) pós-industrialização, e que se tornou objeto de esforços internacionais no intuito de mitigar os efeitos de mudança climática. Esse trabalho visa discutir o tema principal sob ótica das mudanças geológicas de longo prazo, e como a tecnologia de captura e armazenamento de carbono (CCS) pode contribuir para a resolução do desafio climático global. A metodologia baseia-se em revisão literária do CCS e de dados geológicos. O resultado mostra que a atividade humana quanto à GEE tem sido o vetor da definição do Antropoceno como era geológica, e acarretou preocupações políticas e acordos internacionais do clima, que encorajam aperfeiçoamentos legal, institucional e normativo para lidar com desafios da implementação do CCS. Conclui-se pela responsabilidade do poder público como agente que arbitra regras e estabelece recursos disponíveis, interesses envolvidos e ajustes de custo.
Climate change review and the CCS technology contribution to the climate mitigation challenges
Authors: Araujo Israel Lacerda de , Costa Hirdan Katarina de Medeiros , Makuch Zen
Published: July 2022

Abstract The main issue in this century were the increasing greenhouse gases (GHG) emissions after the industrial cycle, and it became international concerns related to climate mitigation challenges. Thus, our focus is to discuss a historical view between climate change diagnosis and how carbon capture and storage (CCS) technology may contribute to mitigate climate change challenges. Our methodology is a literature review of technical and economic questions of CCS and the analysis based on geological data. Results show anthropogenic GHG sources’ geological view from chronologic era highlighted how human interaction with the environment climate conditions, and international climate agreements may encourage changes in new legal, institutional, and normative frameworks under jurisdictions and deal with the challenges for implementing CCS technology via soft power. Therefore, we conclude that governments are responsible for arbitrating and establishing the available resources, the interests between the groups, adjusting costs over time to those they will fund.
System for the Evaluation of Environmental Education Projects focused on Water Resources Management (SAPEA-Água)
Authors: Chacon-Pereira Alessandra , Neffa Elza , Silva Luciene Pimentel da
Published: July 2022

Abstract Given the increased risks of water crises faced by several countries, environmental education emerges as an instrument to help finding solutions to water-related issues, along with local communities and different sectors of society. However, studies have indicated the methodological vulnerability of environmental education programs/projects focused on water resources management. Thus, the current study developed the System for the Evaluation of Environmental Education Programs and Projects focused on Water Resources Management (SAPEA-Água). It adopted a qualitative-quantitative approach, based on the combination of bibliographic research and content analysis of documents substantiating environmental education, in order to evaluate the contextualization, interdisciplinarity, participation, sustainability, communication and self-assessment level of environmental education programs/projects. SAPEA-Água can substantiate the evaluation process, as well as increase the number, quality and effectiveness of environmental education programs/projects implemented in the water resources management context.
Impactos da Covid-19 sobre catadores de materiais recicláveis organizados no Estado de São Paulo
Authors: Azevedo Adalberto Mantovani Martiniano de , Gutberlet Jutta , Araújo Solange Dias de , Duarte Fabiano Harada
Published: July 2022

Resumo Este estudo, realizado com organizações de catadores em 32 municípios do Estado de São Paulo, busca analisar os impactos da Pandemia de Covid-19 sobre as atividades dessas organizações e seus integrantes, incluindo as medidas tomadas pelo governo e outros atores visando aliviar os impactos decorrentes da crise.O referencial teórico discute a relação entre movimentos sociais e políticas públicas, uma vez que catadores organizados interagem com diversos níveis de governo em situações de colaboração e conflito, prestam serviços de gerenciamento de resíduos municipais, sendo frequentes ações coletivas buscando melhorias nessa relação. Pesquisa documental e aplicação de questionários informam sobre as interações dos catadores, evidenciando problemas estruturais e sistêmicos que ganharam relevo com a crise, destacando suas dificuldades, conquistas e reivindicações como movimento social.
Óleo essencial de Melaleuca armillaris redutor de odor em bolsas de estomia intestinal: estudo quase experimental
Authors: Marques Elisângela Cássia , Souza Diba Maria Sebba Tosta de , Vilela Flávio Fraga , Teixeira Manoel Araújo
Published: July 2022

RESUMO Objetivo: Avaliar o efeito do óleo essencial na redução de odor em bolsas de estomia intestinal. Método: Estudo primário, ensaio clínico quase experimental, prospectivo, com abordagem quantitativa. Preparado com folhas de Melaleuca armillaris, foi testado em bolsas coletoras, sem e com efluentes, quanto à aderência e odor. Instrumento: escala de magnitude rotulada. Resultados: Participantes colostomizados, com média de 73 anos ± 14,94, predomínio do sexo masculino; e cuidadores informais, com média de 44 anos ± 8,98, predomínio do sexo feminino. Na avaliação visual do óleo, 100% dos participantes perceberam a aderência. Em relação à avaliação do odor dos efluentes pelos colostomizados, cinco relataram “odor forte” antes do uso do óleo e, após o uso, seis relataram odor “fraco” (p = 0,005). Cinco cuidadores informais detectaram odor “muito forte” dos efluentes antes do uso do óleo e, após o uso, um “fraco” e nove “moderado” (p = 0,0025). Conclusão: Houve redução do odor dos efluentes nas bolsas coletoras com o óleo essencial de Melaleuca armillaris a 10%. Pedido registro de patente no INPI sob nº. BR 10 2020 026987 9.
Nutritional potential of Vasconcellea quercifolia A. St.-Hil. green fruit flour
Authors: Silva Lilian de Fátima Ferreira da , Rodrigues Kétlin Fernanda , Ethur Eduardo Miranda , Hoehne Lucélia , Souza Claucia Fernanda Volken de , Bonemann Daisa Hakbart , Ribeiro Anderson Schwingel , Freitas Elisete Maria de
Published: July 2022

Abstract Non-conventional food plants have a variety of bioactive compounds with nutritional value. Vasconcellea quercifolia A. St.-Hil., belonging to the Caricaceae family, is a dietary alternative with excellent nutritional composition. This study aimed at characterizing the nutritional composition of mountain papaya (V. quercifolia) green fruit flour, in order to incorporate it in a functional food. For that purpose, the flour was characterized regarding its macro and micronutrients, anti-nutritional factors, pH, water activity, and color. This flour showed contents of carbohydrate of 22.31%; protein of 9.65%; dietary fiber of 32.80%; lipids of 14.95%, 63.56% of which are unsaturated fatty acids, especially oleic acid; and ash of 9.10%, with higher concentrations for potassium, calcium and magnesium. Therefore, V. quercifolia flour had good nutritional characteristics and might be used as supplementary food.
Situational Analysis: Relevant Advances in Grounded Theory for Management Studies
Authors: Ássimos Bruno Medeiros , Pinto Marcelo de Rezende
Published: July 2022

Abstract This paper aims at closing a gap in literature referring to academic publications that approach grounded theory, considering that little advance has been noticed in discussions that encompass the application of situational analysis (SA) proposed by Clarke (2003, 2005) and Clarke, Friese and Washburn (2018) in management studies. Thus, this conceptual paper seeks to address situational analysis considering its ontological and epistemological aspects, to investigate its operationalization forms, and, finally, to indicate relevant situational analysis issues for management studies. Our discussion sheds light on relevant situational analysis aspects, which helps prioritizing research methods that may contribute to create fairer and more effective social policies in several fields and meeting daily demands of the management field. As a conclusion, situational analysis seems to bring new guidance to grounded theory after the interpretive turn: cartographic method, consideration of human and non-human actors, and social commitments; in addition, situational analysis gathers discourse and agency studies, action and structure, image, text and context, history, and the present moment to analyze complex investigations.
Análise Situacional: Avanços Relevantes da Grounded Theory para os Estudos de Gestão
Authors: Ássimos Bruno Medeiros , Pinto Marcelo de Rezende
Published: July 2022

Resumo O presente artigo foi motivado por uma lacuna no campo das publicações baseadas na abordagem da Grounded Theory (GT), uma vez que pouco se avançou nas discussões referentes à aplicação da Análise Situacional (AS), proposta por Adele Clarke (2003, 2005) e Adele Clarke e outros (2018) nos estudos de gestão. Assim, neste artigo conceitual, buscamos situar a AS tanto nos aspectos ontológicos quanto epistemológicos, comentar suas formas de operacionalização e, por fim, apontar questões da AS que parecem relevantes para estudos de gestão. Nossa discussão jogou luz sobre aspectos relevantes da AS, os quais a colocam em uma posição que avança no sentido de priorizar métodos de pesquisa que contribuam para gerar políticas sociais mais justas e equitativas em diversos campos, além de atender demandas cotidianas da área de gestão. Como conclusão, a AS parece ter trazido novos direcionamentos para a GT depois da virada interpretativa, a saber: abordagens da cartografia, consideração de atores humanos e não-humanos e compromissos sociais, além de ter reunido estudos de discurso e agência, de ação e estrutura, de imagem, de texto e contexto, de história e do momento presente para analisar situações complexas de investigação.
Are We Ready for New Technologies? The Relation Between Human Values and Technology Readiness Applied to M-Commerce in Brazil
Authors: Fujihara Ricardo Ken , Montezano Lana , Alfinito Solange
Published: July 2022

Abstract This study describes the relation between human values and technology readiness in Brazilian mobile commerce (m-commerce). This study consisted of an online survey including the Portrait Values Questionnaire-Revised (PVQ-R), the Technology Readiness Index 2.0, and SES items in all Brazilian states (N=2,171). Our structural equation modeling showed that human values predicted technology readiness; and attitude, intention to purchase online via mobiles. Self-enhancement and openness to change positively influenced the technology readiness contributor factor, whereas self-transcendence negatively influenced the technology inhibitor factor, and conservation positively influenced it. Theoretical and managerial contributions developed a conceptual model involving human values, technology readiness, and intention to purchase online via mobiles. This study can help develop public policies related to information security, aiming to increase consumer confidence in using new technologies in m-commerce.