bluuebunny/crossref_metadata_2025 huggingface dataset:
AN APPROACH TO ESTIMATING THE RATE OF ORGANIC DEPOSIT FORMATION IN A HOLLOW ROD STRING AND SELECTION OF METHODS FOR DEPOSIT PREVENTION
Authors: KRIVOSHCHEKOV Sergey Nikolaevich , VYATKIN Kirill Andreevich , KOCHNEV Aleksandr Aleksandrovich , KOZLOV Anton Vadimovich
Published: August 2021

Background. There is currently a lack of a methodology that can enable highly-precise determinations of rates of asphaltene deposit (AD) formations in case of dual operation of two oil reservoirs via a single multi-zone oil-producing well using small-bore hollow rods as part of downhole pumping equipment. This methodology aims to minimize the costs of oil and gas companies for servicing such oil wells and preventing their failure. Aims. Creating a methodology aimed at accurate quantitative estimations of the organic deposit formation rates at the inner part of the hollow rod strings. Methods. Calculations of temperature distributions along the hollow rod string inner surface; graphic presentations of the calculated data; laboratory tests using a Cold Finger unit for the selected sections of the hollow rod strings and the graphic presentations of the results. Results and Discussion. The suggested algorithm was field-tested at a target multi-zone oil-producing well of Pavlovka oil field in Perm Krai of the Russian Federation. Using the suggested algorithm, a variation in organic deposit formation rates along the hollow rod string length was evaluated, and the depth of the maximum deposit formation rate was determined. To prevent the deposits in question along the hollow rod string at a target oil-producing well of Pavlovka oil field, laboratory tests were conducted to determine the efficiency of employing the chemical technology, i.e., the use of AD inhibitors, as well as a technology for the removal of the formed deposits using AD solvents. Conclusions. The proposed algorithm is more accurate and requires less time and money compared to existing algorithms. It enables the most effective evaluation of the formation depth of the organic deposits and the intensity at these marks. When evaluating the laboratory studies results, it can be noted that the use of the considered technologies to eliminate organic deposits is highly effective and can be used for this purpose.
STUDY OF ENERGY-SAVING LIQUID THERMAL INSULATING COATINGS BASED ON LOCAL FINELY DISPERSED SYSTEMS
Authors: ZHUMADILOVA Zhanar O. , SELYAEV Vladimir P. , NURLYBAEV Ruslan E. , ORYNBEKOV Yelzhan S. , SANGULOVA Indira B.
Published: August 2021

Introduction: In recent years, in building materials science, there has been a tendency for the active introduction of hollow microspheres of various types for modifying the properties of building materials. Hollow microspheres are most widely used in the production of liquid thermal insulating coatings, which reduce heat loss, protect structures from corrosion and overheating, prevent condensation formation, reduce operating costs and increase the time between repairs. Aim: Assessment of the influence of the structural characteristics of granular systems on the properties of thermal insulating materials. Methods: It is proposed to determine and evaluate the structural characteristics of filler powders by the method of small-angle X-ray scattering. The most important feature of this method is analyzing the internal structure of disordered systems - particles, pore space, interfaces between heterogeneities of heterogeneous substances. When assessing thermal conductivity and thermal resistance, the stationary heat flux method was used following GOST 30290–94. The essence of the method is to create a stationary heat flux passing through a flat sample of a certain thickness and directed perpendicular to the front (largest) faces of the sample, measuring the density of this heat flux, the temperature of the opposite front faces and the thickness of the sample. Results and Discussion: The paper discusses the results of experimental studies that make it possible to create liquid thermal insulation coatings (LTIC) based on polymer binders, fine mineral powders, and a complex of modifying additives. Experimental studies of the structure and properties of heat-insulating coatings based on filled polymer binders confirm their superiority over foreign analogs. Conclusions: It has been established that during the production of LTIC, their heat-shielding properties can be regulated by changing: pressure, the viscosity of the molecular weight of the gas; porosity of macrostructure and clusters; the thermal conductivity of the solid and gas phase of the system; the coefficient of accommodation; coordination number; primary particle size; fractal dimension characterizing the topological features of the structure of particles, aggregates, globules, clusters and their tendency to dissipate the energy of gas molecules.
EVALUATION OF STRENGTH CHARACTERISTICS OF ENDOCROWNS FROM HYBRID CERAMICS
Authors: DOROFEEV Aleksei , KUZNETSOV Ivan
Published: August 2021

Background: Restoration of teeth after endodontic treatment is an urgent problem. There is a large selection of materials and structures for dental restoration after endodontic treatment. Aim: This work aimed to determine the strength characteristics of endocrowns made of hybrid ceramics, depending on various conditions. Methods: The study involved 40 samples of removed teeth (mandibular molars). Mechanical and medical treatment of root canals was previously carried out in the teeth, after which the root canals were sealed with a sealer and gutta-percha. The defect in the crown part of the tooth was repaired with a hybrid ceramic endocrown. Endocrowns were made by milling. The endorocrowns were cemented according to the standard cementation protocol for ceramic restorations. All tooth samples were divided into 2 groups of 20 teeth each group. Group 1 was placed in the thermostat for 24 hours at a temperature of +37±1°C, and group 2 was subjected to thermal cycling. After that, the samples of the studied groups were subjected to uniaxial compression until the moment of destruction. The measurements of the maximum load (kN), maximum stress (MPa), and % of deformation at the moment of failure were carried out. All the results obtained were statistically processed. Results and Discussion: According to the results of the study, the samples of group 1 showed higher values of strength and elasticity than samples of group 2. Conclusions: Thus thermocycling, which simulates the natural oral environment negatively affects the durability of the hybrid ceramic. However, the obtained values make it possible to use it for the restoration of teeth after endodontic treatment
STUDY OF OVERBURDEN TUFF ROCKS AND DEVELOPMENT ON ITS BASIS OF LIGHTWEIGHT STRUCTURAL CONCRETE
Authors: ZHUMADILOVA Zhanar O. , ZHUGINISSOV Maratbek T. , KHAMZA Yerlan Y.
Published: August 2021

Introduction. The work presents the research results on the development of technology for lightweight structural concrete based on overburden tuff rocks. To develop the technology of lightweight structural concrete, overburden tuff rock (Almaty region of the Republic of Kazakhstan) is used, which is formed during the extraction of volcanic tuff for the manufacture of facing tiles. Aim. Study of the basic physical, mechanical and chemical properties of tuff, development of lightweight structural concrete compositions. Methods. The overburden tuff rock is crushed in a jaw crusher and screened through a set of standard screens. As a result, aggregates from tuff of fractions were obtained: 0.16-5 mm, 5-10 mm, and 10-20 mm. The composition of tuff concrete was selected by calculation according to the standard procedure. After calculating the composition of tuff concrete, all raw materials: cement, aggregates, additives, and water are dosed and mixed. The concrete mixture is placed in a mold and compacted by vibro-compression on a vibrating table. Hardening of concrete samples is carried out in humid conditions for 7, 14, and 28 days and steaming in a steaming chamber for 12-16 hours. Results and Discussion. After hardening, the properties were determined: compressive strength, average density, and heat transfer coefficient of concrete samples according to standard methods. The tuff concrete grade is in the range of 15.0-20.0 MPa. The average density of tuff concrete is 1822-1910 kg/m3. The thermal conductivity coefficient (λ) is in the range of 0.66-0.75 W/m∙K. The possibility of manufacturing finishing tiles from tuff concrete by grinding and polishing its surface has been established. Based on tuff sand, with a grain size of 3-5 mm, concrete stones with dimensions of 390x190x188 mm with 2 technological voids were made by vibration pressing. The hollowness of the stone is 51% of its total volume, and the compressive strength grade is 2.5-3.5 MPa. Conclusions. As a research result, the main physical, mechanical and chemical properties of overburden tuff rocks as a filler for lightweight structural concrete were studied. The possibilities of manufacturing wall blocks and facing slabs have been established.
ANALYSIS OF COGNITIVE ABILITIES FOR STEM LEARNING: TWO VIEWPOINTS, TWO OPINION
Authors: NIKULOVA Galina , BOBROVA Lubov
Published: August 2021

Background: Cognition-focused approach to education is one of the foundational factors for preparing the younger generation to further mastering the educational and informational space. Aim: The purpose is to determine the types of cognitive difficulties in students of STEM disciplines (science, technology, engineering, and mathematics) in school, to determine a connection between cognitive abilities and skills, and to determine their significance for both sides of the educational process – the teachers, and the students. Methods: The basic method of the study is polling the respondents, using the questionnaire created by the study’s author, then analyzing and statistically processing the results. The study included three stages: identifying significant difficulties of students in performing educational activities within a specific discipline, identifying the most demanded cognitive abilities and skills, searching for connections, and determining the correspondence of cognitive abilities and skills. Results and Discussion: Types of studies that presented the most difficulties to students were identified and the interconnection between the cognitive competencies. Differences were revealed when comparing the answers of both groups of respondents about the complexity and importance of educational actions in the study of physics and mathematics and the attitude type of schoolchildren to the reproductive level of education or the clearest and memorable algorithms of actions. Competencies most significant to the success of the educational process were extrapolated. Correlation analysis in pairs of cognitive ability/cognitive skill made it possible to correct the initial ideas about their relationship. Conclusions: The data collected allowed establishing the complexity of the educational activities and significant cognitive subject-applied abilities and skills. Systematizing the results of studying the subjective opinions of students and teachers about the importance of cognitive competencies for STEM makes it possible to purposefully transform the educational process, taking into account the needs of its participants and society.
DETERMINING MIGRAINE WITH AURA TRIGGER FACTORS TOWARD IMPROVING THE PRACTICE: A CROSS-SECTIONAL STUDY FROM SAUDI ARABIA
Authors: ALSHAMRANI Foziah Jabbar , ALMOHISH Noor Mohammad , ALMUAIGEL Mohammed Faisal , ALRAMADHAN Narjes Ali , ALJUMAH Maryam Mohammad
Published: August 2021

Background: Primary headache is one of the most common disorders treated in neurology clinics. Globally, it has been estimated that the current prevalence of headache disorder in adults symptomatic, at least once within the last year, is about 50%. According to the Global Burden of Disease Study 2015, migraine was ranked as the third most common cause of disability worldwide. One of the significant migraines is migraine with aura, a frequent headache that occurs after or with sensory disturbances. Aim: This study aimed to identify and compare triggers in previously diagnosed patients with migraine with aura (MwA) to those who have not been identified with migraine with aura before but diagnosed according to a questionnaire survey distributed in the Kingdom of Saudi Arabia (KSA). Methods: Adults aged 18–50 years were randomly selected in the Kingdom of Saudi Arabia to participate in this non-interventional, multicentre, cross-sectional study. The study data was collected via an online questionnaire using the diagnostic criteria of the International Classification of Headache Disorders 2018 and the Cleveland Clinic Canada headache questionnaire. Results and Discussion: Of the 4.140 potentially eligible individuals, 302 were not previously diagnosed with migraine with aura but were diagnosed with a questionnaire (Group A), while 71 participants were already diagnosed (MwA) (Group B). A significant relationship was found among MwA and stress and anxiety, sleep disturbance, noisy places, exposure to lots of lights, prolonged computer work, hunger, fasting, studying for exams, and menstruation in Group A. Group B experienced all of the previous triggers in addition to weather changes, certain odors, and the consumption of cheese, bananas, and hotdogs. Conclusions: The trigger factors are common in individuals with MwA. Awareness of these triggers is essential for preventing the severe complications of MwA, hence, enhance the quality of life of patients.
The Effect of Hair Beauty Online Shopping Experience Marketing on Purchase Intention
Authors: Park Kye-Hee , Kim Hyoung-eun
Published: August 2021

The purpose of this study is to investigate the relationship of the effect of experiential marketing for hair beauty online shopping on purchase intention, and to present basic data that can prepare a plan to increase the experiential marketing and purchase intention of online hair beauty shopping. Online shopping experience marketing was found to be three sub-factors, and two sub-factors of purchase intention. As a result of examining the effect of experience marketing for hair beauty online shopping on purchase intention, statistically significant results were found in relational behavior, emotional sensation, and intellectual perception. Hair beauty online shopping experience marketing can be said to be an important variable in purchase intention. Therefore, if an online shopping mall is built in a strategic direction to increase the sub-elements of the online shopping experience marketing for hair beauty, the purchase intention of consumers will increase and the hair beauty industry will be able to gain an edge in the infinite competition. This study was conducted with limited research subjects and variables, but I hope that a comprehensive and practical study considering various variables will continue in subsequent studies.
A Study on the Learning Satisfaction and Learning Immersion of Blended Learning (face-to-face) Classes between Korean and foreign college students after covid-19 -To H University in Seoul, Department of Beauty Design Management-
Authors: Kwon Oh Hyeok
Published: August 2021

This study aims to compare and analyze learning satisfaction and learning immersion among Koreans and foreign students in the Corona 19 era and to prepare the need and alternatives for blended learning classes (face-to-face + non-face) among various class methods. In this study, 208 questionnaires were distributed to every students in the Department of Beauty Design Management at H University in Seoul, and 206 questionnaires were used for the final analysis. The statistical processing was analyzed using SPSS 21.0 as follows: First, a frequency analysis was conducted to identify the general characteristics of the subjects surveyed; second, an exploratory factor analysis was conducted for the verification of the subjects surveyed; and third, a reliability test was conducted to verify the validity of the measurement tool. Fourth, we conducted t-test, ANOVA to find differences in learning satisfaction and immersion according to demographic characteristics, and conducted a Scheme-test as a post-test of ANOVA. Female students showed higher proportion than male students, and the proportion of Korean and foreign students was about the same. The Blended Learning course found that 39.8% of students take more than five courses, meaning that online classes alone are not enough to satisfy students' needs. Foreign students showed higher satisfaction in learning according to nationality than Korean students, and foreign students also showed higher immersion in learning than Korean students.
A Study on Acne Improvement Effect of Fermented Rhus verniciflua Stokes and Orostachys japonicus A. Berger Complex Extract Cosmetics
Authors: Park Seo-Young , So Young-Jin
Published: August 2021

In this study, a clinical trial was conducted to confirm the effectiveness of cosmetics containing Fermented Rhus verniciflua Stokes · Orostachys japonicus A. Berger Complex Extract (FRO) on acne skin improvement. The result is as follows: After 6 weeks of using FRO cosmetics, it was confirmed that acne comedones, papules, and pustules were significantly reduced. In addition, as a result of analyzing the change in acne status with the KAGS grade, the experimental group improved from M = 2.07 before the experiment to M = 1 after 6 weeks. In addition, the results of acne improvement satisfaction were statistically significant at the 2nd week (p<.01), 4th week (p<.04), and 6th week (p<.01) between the experimental group and the control group. In addition, as a result of analyzing the acne improvement effect of experts, it was statistically significant at the 2nd week (p<.001), 4th week (p<.001), and 6th week (p<.001) between the experimental group and the control group. Therefore, It was confirmed that Fermented Rhus verniciflua Stokes · Orostachys japonicus A. Berger complex extract (FRO) can be useful as a functional cosmetic because it has the effect of improving acne skin.
The Effect of Basic Occupational Competence Perceived by College Students Majoring in Beauty Major on Career Desision-Making Self-Efficacy and Major Continue Intention
Authors: Oh Su-Jeong , Mo Jeong-Hee
Published: August 2021

This study examined differences in basic occupational competence, career decision making self-efficacy and major continuity intention according to specific majors between college students majoring in beauty art, and the effects career decision making self-efficacy had on major continuity intention. The results are presented as follows: First. as results of analysing the differences in, basic occupational competence, career decision making self-efficacy and major continuity intention according to specific majors, there were statistically significant differences in sub-variables including communication ability, personal relationship ability, problem solving ability, technological capability, major satisfaction, career decision making self-efficacy. Second, as a result of examining the effects basic occupational competence had on Career Decision Making Self-Efficacy, it was discovered that technological capability and personal relationship ability had a significant effect on career decision making self-efficacy. Third, as a result of examining the effects basic occupational competence had on major continuity intention, it was discovered that personal relationship ability had a significant effect on major continuity intention. Fourth, as a result of examining the effects career decision making self-efficacy had on major continuity intention, it was discovered that the former had a significant effect on the latter.
Evaluation of Changes and Characteristics of Hair According to the Application of the Hair Dryer Plasma Functional Module
Authors: Hyun Ji-Won , Hwang Seoung-Tack
Published: August 2021

Hairdryers are commonly known to cause hair damage such as “roughness”, “dryness”, and “hair color loss”. while using it. So, numerous studies have tried to find ways to dry hair with no damage or minimized level. In this study, we examined hair damage levels by varying drying applications during the process and analyzed hair changes either in essential characteristics such as “oil and moisture balance” or “microstructure”. As a result, hair was severely damaged when treated with a general hot air dryer for 90 minutes, causing cuticle crack or layer separation. In contrast, the plasma hairdryer caused just a little or even no damage to hair for the same exposure time. It may be because ions and moisture molecules generated when using a plasma hairdryer can protect hair structure from the harsh hot air condition.
Adaptogenic Agents - Proper Channel for Health
Authors: A. P Shaha , Deshmukh Meer , Tilak Pranati , Hora Rhythm
Published: August 2021

Stress causes aging of majority of people in India which has impact on overall personal development, economic status, social and clinical aspect of an individual. Stress and aging causes less life period that should be considered as a threat with respect to family. It causes unsatisfaction during life period of individual. It is a necessity and challenging to treat this disorder using herbal adaptogenic agents. This article presents causes of stress, the medicinal herbs as adaptogens, the marketed formulation of adaptogens and successive findings through it.
Rachunek kosztów dla innowacji w zautomatyzowanych systemach księgowych
Authors: Resler Maryna , Horbovyy Artur , Resler Dmytro
Published: August 2021

Rozwój przedsiębiorstwa w dzisiejszych, szybko zmieniających się warunkach gospodarczych nie jest możliwy bez wdrożenia innowacji. Mogą się one odnosić do obszarów działalności związanych z rozwiązaniami technicznymi, technologicznymi, organizacyjnymi, produkcyjnymi czy też w zakresie ekologii. Przy czym należy podkreślić, iż o ile sfery techniczno-technologiczne i organizacyjno-produkcyjne zawsze były dla przedsiębiorstwa w centrum uwagi w zakresie wdrażania innowacji, to pozostałe obszary są zwykle mniej eksponowane. Wpływ innowacji na działalność i rozwój przedsiębiorstw jest dzisiaj bardzo duży i upatrują one w tym procesie możliwość zdobycia przewagi konkurencyjnej. Realizacja nowych pomysłów we wszystkich wymienionych obszarach może przybierać rożne formy. Dlatego ważna jest identyfikacja procesów związanych z wdrożeniem innowacji i analiza nakładów niezbędnych do ich finansowania. Optymalnym narzędziem w tym zakresie jest wykorzystanie zautomatyzowanych systemów informatycznych, pozwalających na bieżące śledzenie i analizę kosztów w ramach działalności operacyjnej przedsiębiorstwa. W artykule zaprezentowano możliwości wykorzystania takich systemów w obszarze analizy i zarządzania kosztami wdrożenia innowacji z wykorzystaniem zautomatyzowanych systemów księgowych.
Wpływ efektywności informacyjnej rynku kapitałowego na działalność funduszy inwestycyjnych w Polsce
Authors: Ważna Elżbieta
Published: August 2021

W artykule podjęto tematykę efektywności rynku kapitałowego. Podkreślono znaczenie szybkości przekazu i dostępności informacji rynkowej wpływającej na stopień dokładności, z jaką rynek, będący wypadkową działań inwestorów, wycenia poszczególne instrumenty finansowe. Dokonano prezentacji czynników efektywności przypisywanych zarządzającym portfelami funduszy. Szczególną uwagę zwrócono na zachowanie uczestników i zarządzających funduszami inwestycyjnymi, które w dużym stopniu decyduje o konieczności rozpatrywania efektywności funduszy nie tylko pod względem technicznym, ale i fundamentalnym.
Art. 108 ustawy o podatku od towarów i usług – pusta faktura w obrocie gospodarczym
Authors: Wilczyńska Małgorzata , Olejarz Piotr
Published: August 2021

W ostatnim czasie wprowadzono szereg zmian przepisów mających na celu uszczelnienie systemu VAT. Narzędziem służącym realizacji tych celów jest m.in. cały system sankcji oraz kar za nieprawidłowości w rozliczaniu podatku. W szczególności uwagę zwracają uregulowania dotyczące posługiwania się tzw. pustymi fakturami. Pojęcie „pusta faktura” występuje na gruncie podatku od towarów i usług, i znajduje odzwierciedlenie w ustawie regulującej opodatkowanie tym podatkiem, tj. Ustawa z dnia 11 marca 2004 roku (Dz. U z 2018 r., poz. 2174). W artykule poruszono problematykę występowania pustych (fikcyjnych) faktur w obrocie gospodarczym. Przedstawiono ich definicję i istotę. Wskazano na konsekwencje podatkowe i karne skarbowe wynikające z posługiwania się fikcyjnymi fakturami przez wystawcę, jak i odbiorcę. Metodologia badawcza: metoda studiów literaturowych (wykorzystano literaturę krajową z tego zakresu, w tym artykuły naukowe oraz akty prawne). Wykorzystano metodę analizy źródeł. Przybliżenie istoty pustej (fikcyjnej) faktury, konsekwencji podatkowych (ujęcie w rejestrze VAT, rozliczenie) zarówno po stronie odbiorcy, jak i wystawcy oraz przybliżenie konsekwencji karnoskarbowych są przydatne dla praktyki.
On the Mathematical Narration by Trans-Spectrum University Students
Authors: Cassiday Cody J.
Published: August 2021

More than 80 years of literature support the idea that math attitudes and experiences differ by gender. However, such research treats gender as a simple and dichotomous variable, which it is not. As such, our understandings of math affective variables are completely dominated by a cisgender narrative and a false gender binary. In particular, I argue that it is important to research the lived experiences in the math classroom and the sense of belonging felt by trans-spectrum students. This qualitative study has employed a narrative methodology to analyze the semi-structured interviews of 6 participants who identify as trans-spectrum university students in order to explore the tactile lived experiences in the math classroom as it relates to gender, when gender is considered holistically. Overall, the participants indicated that while mathematics as a discipline is not gender-specific, the participants face discrimination and microaggressions around mathematics that help create a chilly atmosphere. The participants, then, narrate their sense of belonging in regard to a separation between mathematics as a discipline and mathematical activities. Collectively, all participants presented stories that highlight conflicts within various social binaries, such as male/female or private/public school.
Impact of Practicing Mindful Breathing in Class
Authors: Rajkumar Lakshmi , Dubowy Christine , Khatib Ahmad
Published: August 2021

Many community college students experience high levels of stress due to the demands of coursework and stressors outside of the classroom. Contemplative practices such as deep breathing can reduce stress and increase focus, but students may not be familiar with or feel that they have time to engage in these practices. We hypothesized that introducing students to mindful breathing in our accounting and biology classes would help students manage stress during the semester, reduce test anxiety, and improve student performance.  

To test this hypothesis, we introduced some sections of our courses to mindful breathing techniques such as square breathing, alternate nostril breathing, and victorious breathing and set aside time at the start of each class to allow students to engage in these practices. At the end of the semester, we surveyed students to assess their past and present experiences with contemplative practices and their perceptions of the benefits of mindful breathing. We also asked students to rate their levels of exam stress and to rate the general feelings of stress they experienced during the semester, comparing their responses with responses from students in control sections that were not introduced to mindful breathing. The survey results indicated that mindful breathing was a new practice to some students and a familiar practice to others. Most students felt that the practice of deep breathing at the start of each class helped them reduce stress, develop a sense of connectedness, and improve focus. However, there was no consistent difference in self-reported exam stress or general stress between students in sections with and without in-class contemplative breathing. There was also no difference in course performance, as reflected by overall course grade, between sections with and without in-class contemplative breathing. Although it was not the focus of this study, we observed that in-class contemplative breathing practice seemed to improve the learning environment and helped build trusting relationships with students.
Fish consumption and consumer awareness aspects of possible mycotoxin contamination in fish in Curitiba-PR, Southern Brazil
Authors: Anater Amanda , Thon Bruno Machuca , Pizzolato Montanha Francisco , Weber Saulo Henrique , Ribeiro Deivid Roni , Pimpão Cláudia Turra
Published: August 2021

The global per capita consumption of fish reached a record of 20.5 kg in 2018, thus demonstrating the sector’s importance. A potential risk to consider when consuming fish is the indirect intake of mycotoxins by humans when consuming fish from intensive fish farming fed with potentially contaminated mycotoxins. The aim of this study was to evaluate fish consumption and consumer awareness of possible mycotoxin contamination in Curitiba, Paraná, Brazil. The information was obtained through a questionnaire applied at supermarkets in 5 different city regions, obtaining 358 respondents. Descriptive analysis was performed on the data, followed by Spearman’s correlation analysis between the responses. It was observed that demographic data (e.g., age, gender, and social class) significantly influenced fish consumption frequency. Thus, 64.80% of respondents preferred tilapia meat over other fish species, 89.91% of people are unaware of mycotoxins, and 93.95% of people do not know what damage mycotoxins cause in human and animal health, and 86.17% of people did not know about any disease related to fish consumption. Schooling had a significant correlation with the aforementioned issues, demonstrating that lower educational levels negatively influence the perception of illnesses caused by food. The most consumed fish is farm-raised tilapia and the consequent possibility of mycotoxin exposure. Respondents are unaware of the possible mycotoxin presence infish and their impact on human health.
Use of HAND terrain descriptor for estimating flood-prone areas in river basins
Authors: Dantas Ana Alice Rodrigues , Paz Adriano Rolim
Published: August 2021

The flood hazard mapping in a river basin is crucial for flooding risk management, mitigation strategies, and flood forecasting and warning systems, among other benefits. One approach for this mapping is based on the HAND (Height Above Nearest Drainage) terrain descriptor, directly derived from the Digital Elevation Model (DEM), in which each pixel represents the elevation difference of this point in relation to the river drainage network to which it is connected. Considering the Mamanguape river basin (3,522.7 km²; state of Paraíba, Brazil) as the study location, the present research applied this method and verified it as for five aspects: consideration of a spatially variable minimum drainage area for denoting the river drainage initiation; the impact of considering a depressionless DEM; evaluation of hydrostatic condition; effect of incorporating an existing river vector network; and comparative analysis of basin morphology regarding longitudinal river profiles. According to the results, adopting a uniform minimum drainage area for the river network initiation is a simplification that should be avoided, using a spatially variable approach, which influences the amount and spatial distribution of flooded areas. Additionally, considering the depressionless DEM leads to higher values of HAND and to a smaller flooded area (difference ranging between 3% and 99%), when compared with the use of DEM with depression, despite 3.1% of the pixels representing depressions. The use of the depressionless DEM is recommended, whereas the DEM pre-processing by incorporating a vector network (stream burning) generates dubious results regarding the relation between HAND and the morphological pattern presented in the DEM. Moreover, the estimation of flooded areas based on HAND does not guarantee the hydrostatic condition, but this disagreement comprises a negligible area for practical purposes.
Alguns aspectos historiográficos sobre os negros e negras africanos e afro-brasileiros na diáspora e na formação do Brasil
Authors: Dos Santos José Francisco
Published: August 2021

No dia doze de setembro de  2019, no período vespertino teve o painel sobre as Relações Étnico-raciais, no Fórum Sociedade Crítica (FSC) evento promovido pela Pós-graduação em Ciências Humanas e Sociais – PPCHS. Nesse painel teve a fala do Prof. Pedro Leiva, da Universidade da Integração Internacional da Lusofonia Afro-brasileira – UNILAB e do Prof. José Francisco dos Santos da Universidade Federal do Oeste da Bahia -UFOB, docente do PPCHS-UFOB. Esse texto vai se debruçar na apresentação, que discorreu sobre a história das negras e negros na diáspora africana e afro-brasileira e no processo de exclusão dos mesmos na contemporaneidade.
Identidades e deslocamentos:
Authors: Dias Renato Duro , Grischke Lucas Lopes
Published: August 2021

O presente escrito problematiza as identidades de gênero e sexuais a partir de seus múltiplos deslocamentos, tendo como referência as constantes lutas por reconhecimento nos modelos de sociedades em que a heteronormatividade é hegemônica. A abordagem metodológica empregada no estudo é de análise bibliográfica, sustentada por autores e autores que explanam conceitos como identidades (BAUMAN, 2005; HALL, 2015), identidades sexuais (FOUCAULT, 2004; RUBIN, 2017)  identidade de gênero (JANUÁRIO, 2016; LOURO, 2018), rompimento da epistemologia binária  (BUTLER, 2017; PRECIADO, 2017; SALIH, 2017; DIAS, 2015). A pesquisa se propõe levantar discussões e reflexões, sobretudo com foco no campo identitário, palco de conflitos, tensões e normatizações, procurando desvelar os possíveis espaços de resistência abertos nas disputas nas intricadas relações de poder.
Apresentação do Dossiê
Authors: De Lucas Carlos Henrique , Oliveira Santos Terezinha
Published: August 2021

Texto de apresentação do Volume 01 Número 01 da Revista Sul-Sul de Ciências Humanas e Sociais.
Closer to Dust
Authors: Rich Sara A.
Published: August 2021

No one thinks straight. At least no one remembers straight. But ten years ago, things were different, weren’t they?

Roland Barthes once wrote that color in a photograph is like make-up on a corpse. No one is fooled. In anarchic denial of convenient truths, a young international couple meet and marry on a small Mediterranean island. Ten years later, the couple separate in part due to complications with immigration laws. Following this transcontinental rupture, fragmented histories emerge in response to the woman’s encounters with a series of color snapshots. There is death here, familiar to the mourner, as the photographs issue their special powers to magically and auspiciously predict the future and simultaneously to permit the return of the dead. The woman recognizes pieces of herself as past objects indexed within photographic stills, but paradoxically, she is present, outside in this chaos trying not to fall apart. The images and their objects yawn to remind us of the reluctant destiny of all our beloved memories, bodies, and things: that is, to disintegrate.

Borrowing its title from a passage in The Emigrants by W.G. Sebald, Closer to Dust is a séance, a gathering of invitees: inherently biased elegies, the images that conjured them, and the reader- viewer in attendance who is warmly invited to order these intimate fragments into cohesion.
Antecedentes da lei do divórcio
Authors: Quissini Lauren Cavichioli
Published: August 2021

O presente artigo tem como objetivo analisar de que forma a revista Manchete (1952-2000) apresentou os debates que antecederam a lei do divórcio (1977) no Brasil. Considerando a popularidade e a intensidade de circulação da mesma, elegeu-se para este trabalho 12 edições que compreendem o período que vai de 4 de janeiro de 1975 (edição 1185) a 24 de maio de 1975 (edição1205). Deste modo, para a análise, utilizar-se-á da metodologia da Análise de Conteúdo, proposta por Laurence Bardin (1977), concomitante as recomendações feitas por Moraes (1999) e Zicman (1985). Os resultados indicam, portanto, que os conteúdos veiculados nas reportagens estiveram relacionados direta (através de debates políticos antidivorcistas e divorcistas) e indiretamente (por meio dos questionamentos levantados pelo mundo acerca dos direitos femininos).
Casa de Ferreiro, Pau de Arara
Authors: Silva Bruno Almeida
Published: August 2021

Este artigo constitui-se a partir de um depoimento coletado pela Comissão Nacional da Verdade (CNV), no ano de 2013, em busca de compreender o discurso elaborado pelos militares torturados, perseguidos e expurgados do Exército Brasileiro durante a ditadura militar (1964-1985). A narrativa de um ex-militar vem ao encontro dos questionamentos sobre a existência ou não de uma ditadura de duas décadas no Brasil e suas consequências. Pouco colocada em debate, a ação dos militares dissidentes, que questionaram o golpe e se opuseram a ele, está presente na narrativa analisada, que servirá de pano de fundo para esse trabalho, o qual tem como fonte principal o depoimento do capitão Darcy Rodrigues.
O patrimônio de braços cruzados
Authors: Borges Pestana Marlon , Pires Braga Celso
Published: August 2021

Este artigo é uma breve contribuição sobre a história da estátua de Napoleão Bonaparte que está na Praça Tamandaré. A obra escultórica é de autoria do italiano Matteo Tonietti e representa uma das mais complexas obras de arte deste artista, não apenas pela sua complexidade, mas pela trajetória histórica e atual posição no cenário rio-grandino. A pesquisa se estendeu para a compreensão do universo simbólico da escultura, do seu escultor e do burguês que encomendou a peça. Ao usar a memória coletiva como base teórica foi possível entender como a trajetória de uma família abastada se desfaz da posse de uma obra única, fruto do período político da época em que viviam as famílias e os patriarcas que as encomendavam. Os resultados da análise dos relatos se referem aos três momentos da estátua e sua trajetória privada e pública.
Comparison of Vitamin D Levels in AMI patients and Healthy Individuals
Authors: Bashir Aisha , Karim Asima , Kanwal Asia , Salam Asma
Published: August 2021

Background: Research reports that serum Vitamin D levels are deficient in AMI patients. Aim: To compare serum Vitamin D levels between AMI patients and healthy controls. Methods: Study design was Cross Sectional Comparative. The study was conducted at Department of Physiology & Cell Biology, University of Health Sciences, Lahore 2018 to 2019. Serum vitamin D levels were measured in 80 study subjects. Among 80 study subjects, 40 had AMI and 40 were healthy controls. Results: The serum Vitamin D levels less than 20ng/ml were considered deficient. Mann Whitney U test was used to compare the groups. The mean serum Vitamin D levels of the AMI patients were significantly lower (7±2.47ng/ml) as compared to healthy controls (17.17±4.8ng/ml) at (p=0.000). Conclusion: AMI patients have significantly lower serum Vit. D levels as compared to healthy individuals. Keywords: Acute myocardial infarction, Serum Vitamin D
Regenerative Endodontics Procedure in Treatment of Permanent Immature Teeth with Necrotic Pulp
Authors: Virda Maryam , Munir Muhammad Bader , Shafi Nighat , Ginai Haroon Asghar , Ali Mamoona , Anwar Mahrukh
Published: August 2021

Aim: To evaluate the radiographical success of Regenerative endodontics procedure in permanent immature teeth with necrotic pulp. Methods: This Descriptive case series was conducted at the Department of Operative Dentistry, de’Montmorency College of Dentistry/ Punjab Dental Hospital, Lahore from November 2015 to November 2016. A total of 30 cases were included using non-probability consecutive sampling. Patients of both genders with age range from 9 to 14 years were considered. Performance of procedure and evaluation of success was done in terms of root development on periapical radiographs. . Data was entered and analysed with IBM SPSS 20. Level of significance was kept at p-value ≤ 0.05 Results: Out of 30 patients, 13 were females and 17 were males. Mean age of patients included in this study was 11.5±1.737. Follow up at 12 months showed 90% success, with 27 cases showed root development on periapical radiograph. There was no significant relation of success with age and gender of patient with p- value greater than 0.05. Conclusion: It is concluded from current study that Regenerative Endodontics procedure in permanent immature teeth is encouraging and can be recommended for the treatment of permanent immature teeth with necrotic pulp. Further research studies are required for evaluation of root development in regenerative endodontics procedure. Key words: Regenerative Endodontics, Permanent Immature teeth, Root development
Orthodontic Treatment Need at Nishter Institute of Dentistry
Authors: Azeem Muhammad , Awaisi Zubair Hassan , Hassan Sohaib , Ahmad Farhan , Ata Saadia , Rasheed Abdul
Published: August 2021

Background: The Index of Orthodontic Treatment Need (IOTN) is one of the important index to find out orthodontic need of patients. Aim: To find out the need of orthodontic treatment in patients visiting Nishter Institute of Dentistry, Multan (NID). Method: The index was applied using plaster models and intraoral examination. The measurements of various components of IOTN index was taken with the help of digital vernier calliper. Results: The results of various measurements of IOTN index was taken, recorded and analyzed statistically. Result of the present cross-sectional study showed that 65% patients were in grade 4 and 5 of IOTN. The analysis showed that 13% were in grade 4 of IOTN, 52% were in grade 5, 15% were in grade 3, 16% were in grade 2 and 4% patients was in grade 1 of IOTN index. Conclusion: No significant sex differences were shown for the need of orthodontic therapy in any category of IOTN. The need of orthodontic treatment is very high in patients of Southern Punjab, Pakistan. Keywords: Treatment Need; IOTN; Orthodontics.
Assessment of Physical Therapy Students Performance during Clinical Practice
Authors: Sarwar Memoona , Waqas Shoaib , Asim Hafiz Muhammad , Tariq Muhammad , Javaid Asifa
Published: August 2021

Aim: To assess the clinical performance of (DPT) students in Lahore by using assessment of physical therapist practice questionnaire (APP). Methodology: A descriptive cross sectional survey was conducted by using simple random sampling technique. Total 91 students of final year DPT among Lahore were selected for this study. 60% of the students from each college were enrolled. The data was collected by using the standardized questionnaire named assessment of physical therapy questionnaire (APP). Whole information was kept confidential. The data was analyzed by SPSS 23. Results: Results showed that global rating score at APP questionnaire was 62.4% (57 out of 91) reflecting overall good performance during the clinical rotation, 18.68% (17 out of 91) students present satisfactory results ranges, 14.29% (13 out of 91) present acceptable performance and 4.40 % ( 4 out of 91) students showed inappreciable performance. There mean age of 91 students were 21.25 with standard deviation 0.9236. The Pearson chi square test p=0.948, p <0.005. It reveals that there is no significant variation between gender and overall performance of students during clinical rotation Conclusion: This study concluded that maximum final year DPT students showed good performance during clinical practice, indicated that curriculum for DPT students is good enough to make student professionally competent. Key words: Clinical practice, APP questionnaire and DPT students
Experience of Medical Students on Appearing in First Sub Stage of Anatomy
Authors: Saeed Kanwal , Muneer Muhammad Qasim , Ashraf Samar , Ijaz Shamsa , Pal Mujtaba Ashal , Haroon Muhammad , Muneera Mahjabeen
Published: August 2021

Background: Higher level of stress experienced by medical students has been found to have a negative effect on their cognitive learning. The first year MBBS student have to face the challenge of higher standards of course work and examination as compared to his previous school and college coursework. Moreover, student from rural background and living in hostel has to face additional challenges of coping with homesickness, hostel related and many financial problems. Aim: To determine the experience and feelings amongst First year MBBS students to the first sub stage in anatomy in different public and private medical colleges of Punjab. Method: A descriptive cross-sectional study was conducted at Allama Iqbal Medical College, Lahore. A sample of 275 students of First year MBBS class were selected from both public and private sector of medical colleges in various cities of Punjab through convenience sampling technique. A self-administered structured questionnaire was prepared for data collection and distributed amongst First Year MBBS students. Data was entered and analyzed using SPSS 21. Results: The result of the study showed that 53.8% of First Year MBBS students were nervous before the first substage. Results of the study also showed that hostelites and females students were more nervous and these findings were statistically significant. Also our study showed that government medical college students were better prepared for their substage as compared to private college students and there is statistically significant difference between them (p < 0.00). Conclusion: Majority of First year MBBS students (58%) are facing increase level of stress during their first substage. Statistically significant higher stress levels are observed among females, hostellites. Keywords: First Year MBBS, Experience, Stress, First substage
BRINCAR NA EDUCAÇÃO INFANTIL E SUA IMPORTÂNCIA PARA O DESENVOLVIMENTO DAS CRIANÇAS
Authors: Gomes de Mattos Pedroso Daniela , Teles de Lima do Nascimento Mariana , Klayn Lucindo de Lima Natali , Gomes Borges Machado Rosimar
Published: August 2021

O presente estudo se dá em razão da necessidade de observar como o brincar está presente no processo de ensino aprendizagem na Rede Municipal de Ensino de Curitiba (RME) -PR. Tal análise justifica-se por se considerar imprescindível refletir acerca da importância das brincadeiras no cotidiano da educação infantil, enquanto recurso metodológico capaz de articular os conteúdos; além de entender a importância do brincar. Nesse sentido, este trabalho desenvolve-se por meio de pesquisa documental, pois esta permite que sejam utilizados dados e informações, e consiste em um rico complemento à pesquisa bibliográfica, permitindo avaliar determinados assuntos. Desse modo, esse estudo incidiu sobre a análise de três importantes documentos que regem a educação infantil da RME, no intuito de fornecer subsídio para melhor esclarecimento do tema proposto. Além de estabelecer relação entre o brincar, enquanto estratégia de ensino, e o aprimoramento do processo ensino aprendizagem da educação infantil, e identificar os benefícios das atividades desenvolvidas, através das brincadeiras com crianças da educação infantil. Assim, o presente estudo possui o objetivo de analisar como o brincar está presente no processo de ensino aprendizagem da Educação Infantil, na Rede Municipal de Ensino de Curitiba. Para tanto, foram utilizados pressupostos teóricos de Vygotsky, Brougere, Kishimoto, Oliveira, entre outros. Fazer uso de brincar enquanto metodologia de ensino consiste no aproveitamento da motivação natural das crianças, fato este, que finda em uma aprendizagem mais encantadora.