bluuebunny/crossref_metadata_2025 huggingface dataset:
Adsorption of Phenol in Wastewater Using Nano Grapheme Oxide-Chitosan-Bentonite Absorbent
Authors: Jadid Alireza , Shahsavari Shadab , Seifkordi Aliakbar , Vaziri Yazdi Ali
Published: May 2021

Background and Objectives: Contamination of surface and groundwater sources with aromatic compounds such as phenolic compounds is one of the newest environmental problems that humans encountered it today. One of the ways to remove these pollutants is the use of polymeric adsorbents. In this study, chitosan-bentonite-nano-graphene oxide nanosorbent was synthesized to investigate the phenol adsorption. Material and Methods: In this research, experimental design was performed using Design-Expert 7.0 software to investigate the effect of independent variables including nano graphene oxide, chitosan and bentonite on the dependent variable (phenol removal rate). Moreover, phenol absorption isotherm, kinetics and thermodynamics, were also examined. Results: Eventually, the optimum formulation of nano-adsorbent with specifications of 0.1 g of chitosan, 0.18 g of bentonite and 0.07 g of nano-graphene oxide was investigated. Optimal adsorption conditions were also obtained at a concentration of 100 ppm, pH=5 and 45 minutes of absorption time. Conclusion: Finally, it was found that the synthesized nanosorbent follows the Langmuir isotherm, which represents physical adsorption, and also the kinetics of the adsorption process is the diffusion between particles. As a result, it was found that the optimal application of this nano-adsrbent is in wastewaters with a temperature of less than 400 °C.
Epidemiology, clinical presentations and radiologic findings of nasopharyngeal cancers
Authors: Shahidi Nikzad , Maleki Henghameh
Published: May 2021

Background: The incidence and prevalence of malignant nasopharyngeal cancers (NPC) are different in each part of the world. The prevalence of this malignancy is about 0.5 in every 1000 people in the USA, while it is about 20 in every 100 people in China. this difference is due to nutritional, environmental, and genetic factors, especially for endemic regions. This malignancy is more common in men and is often seen in the sixth decade of life. We decided to do this study from the point of epidemiologic, clinical, and radiologic findings in patients with nasopharyngeal cancers. Methods: This is a cross-sectional descriptive study of patients who were admitted to the ENT ward with the diagnosis of nasopharyngeal carcinoma from 2004 to 2014. Thirty-two patients were studied from the point of age, gender, risk factors, clinical and radiologic findings. Results: Of 32 patients, 26 patients (%81) were male, and six patients (%19) were female. The mean age of the patients was 50.28 years old. Nineteen patients were self-employed, 4 were farmers, 3 were staffers, and 6 were house worker women. %84 of the patients had a negative family history of nasopharyngeal carcinoma. %66 of the patients had neck mass, and the second most common clinical finding was nasal obstruction. The most common site of tumor origin was the right lateral wall (%37), and the second was the left lateral wall (%28). Eight patients had erosion of the skull base, and 14 patients had tumor expansion to the paranasal sinuses and orbital cavity. Conclusion: In patients complaining of a neck mass, nasal obstruction, and headache, nasopharyngeal cancer should be highly suspected. Nasal endoscopy and biopsy of the suspected lesion are needed for correct diagnosis and treatment.
The effects of eight weeks high intensity interval training on the levels of endothelial nitric oxide synthase (eNOS) gene expression in left ventricle of type 2 diabetic rats
Authors: Noraie Fatemeh , Peeri Maghsoud , Azarbayjani Mohammad Ali , Delfan Maryam
Published: May 2021

Background: According to previous research’s, the function of endothelial nitric oxide synthase (eNOS) impairs in diabetes. Therefore, the present study conducted aimed to investigate the effects of eight weeks high intensity interval training (HIIT) on the levels of eNOS gene expression in left ventricle tissue of type 2 diabetic rats. Methods: in experimental research, the 14 male Wistar rats with eight weeks old and the average weight of 160±10 g feeding of high fat and sweet diets (30% fat and 25% fructose) for seven months. The rats after confirming the type 2 diabetes, randomly assigned into two groups of six rats consist of control and HIIT groups. The rats in the HIIT group trained for eight weeks and five sessions per week. The 24 hours after last training sessions, blood samples collected and the left ventricle removed and the levels of eNOS gene expression measured by Real Time PCR assay in heart tissue. Results: There was a significant increase in eNOS gene expression in HIIT group compared to the control group (p=0.011). Moreover, the levels of glucose, insulin and insulin resistance (HOMA-IR) was significantly lower in the HIIT group compared to the control group (p<0.05). Conclusion: It seems that HIIT play an important role in improving heart tissue endothelial function and improve the insulin sensitivity in diabetic rats by high fat and sweet diets.
Investigation of microalgal treatment for poultry slaughterhouse wastewater after the dissolved air flotation unit
Authors: Aksu Meryem , Tanattı Pınar Nazire , Erden Büşra , Şengil İsmail Ayhan
Published: May 2021

Meat and meat products are some of the primary consumption products required for the continuation of life. The world population accessed over 7.5 billion that means the demand for food is increasing every day. Slaughterhouses and integrated meat facilities are being rapidly developed and established to meet meat and meat product requirements. In slaughterhouse poultry plants, high amounts of water are utilized for the meatpacking process. The poultry slaughterhouse wastewaters contain high levels of organic solids such as fat, blood, suspended matter, and dissolved protein, which can be treated using physical, chemical, and biological treatment methods. In this study, the treatment of poultry slaughterhouse wastewater preliminarily treated by dissolved air flotation, with microalgae culture (Chlorella Vulgaris) development, unlike traditional treatments, was investigated. Chemical oxygen demand and total suspended solids parameters for wastewater treatment have been monitored for 15 days of incubation. 0.8, 4, 8, 12, and 20% by volume algae were applied for slaughterhouse wastewater, and the optimum amount of algal inoculation was determined after 15 days. When the removal efficiencies were examined, the most appropriate amount of inoculation rate with 76 % chemical oxygen demand removal and 87% algal growth (as total suspended solids) was selected as 12%.
¿El estado de la violencia o la violencia de Estado? Analítica del discurso gubernamental sobre los “barrios críticos” en Chile
Authors: Durán Andrés , Abarca Fariel , Álvarez Francisco , Castro Felipe , Hidalgo Rodolfo
Published: May 2021

El presente trabajo realiza una lectura de la acción del Estado sobre los denominados barrios “críticos”, problematizando la perspectiva que se ha construido sobre “violencia” acontecida en los sectores. Se argumenta que la focalización en una violencia “directa”, vale decir, interpersonal, y siempre localizada en emplazamientos políticamente delimitados, es una de las formas que ha adquirido la gubernamentalidad contemporánea para la administración de la vida en los sectores populares. Se concluye que un examen socio histórico debe considerar al Estado, sus discursos y escritura como parte del problema a analizar, puesto que participa íntegramente de su producción en tanto racionalidad de gobierno.
Migracje międzynarodowe i teoria Bourdieu
Authors: Grabowska Izabela
Published: May 2021

The author considers Pierre Bourdieu’s conceptual formula where [(habitus) (capital)] + field = practice and brings it to the field of international migration. She proves that a complete, cohesive application of Bourdieu’s theory in migration studies has much greater heuristic potential than the use of isolated individual concepts—it enables a new view of the social world where international migration constitutes an inherent part. It aims at explaining such phenomena as transnational habitus, forms of capital in migration process, migratory field, and transnational practices.
Aktywność fizyczna, (niepełno)sprawność i zdrowie w reklamach największych imprez sportowych świata
Authors: Sahaj Tomasz
Published: May 2021

The aim of this article is to examine the commercials broadcast during prestigious sports events, such as the Super Bowl in the United States, the Olympic Games and Paralympic Games, and the World Cup and European Championship in football. The author uses the qualitative method and analyzes the content of the commercials as texts of contemporary culture. Mass media is the universal communication platform of the ‘global village.’ There is a certain expectation that it will be socially responsible, which is reflected in commercials involving disabled persons, or in those encouraging the audience to adopt an active, healthy lifestyle and to engage in sport as an antidote to civilizational diseases.
Rozmowa z Profesorem Szackim — 29 września 2015 w kawiarni przy ulicy Dobrej
Authors: Schmidt Filip
Published: May 2021

This is a transcript of a conversation with Jerzy Szacki which was conducted for the research project ‘The Archive of Research into Daily Life’ of the UAM Institute of Sociology in Poznań. The aim of the project is to obtain information about past sociological research in Poland and, in the future, to make it available in an organized form. The professor spoke about the history of sociology in Poland a few months before his death.
O potrzebie dialogu. Koncepcja zwrotu edukacyjnego w sztuce
Authors: Nieroba Elżbieta
Published: May 2021

This article is about the educational turn in contemporary art. At present, many artists are interested in educational projects—the planning of events in which education is not reduced to an auxiliary role (as is traditional with an exhibition). Simultaneously, however, the artists distance themselves from the school system and are attempting to experiment with education, treating it as an autonomous, alternative cultural practice. The author describes the traits and circumstances of this artistic phenomenon (above all, transformations in the field of socially engaged art, and criticism of the idea of a knowledge-based economy). She analyses the role of pedagogical methods and ideas in artistic and curating practices, while focusing primarily on methods of using dialogue in artistic projects.
Nie tylko art and science: czyli jak myśleć o praktykach łączących sztukę i naukę? Propozycja nowej typologii
Authors: Małkowicz Zofia
Published: May 2021

Artists and scholars have long been interested in the relations between art and science. However, on account of the diverse and transgressive nature of these relations, they may escape attempts to classify them in accord with the traditional divisions of academic disciplines, which are so characteristic of contemporary times. These divisions also prove inadequate for consideration of the rapid technological and socio-cultural changes destabilizing the mutually autonomous territories of art and science. The author thus attempts to respond to the need for new conceptual frames that will allow the existing forms of collaboration between artists and scholars to be revealed and systematized in a more cross-sectional and reflective manner. For this purpose she proposes a new typology—a model organizing phenomena in which art combines with science.
Aktywni Polacy: dwie dekady uczestnictwa w sporcie i rekreacji ruchowej. Próba wyjaśnienia zmian
Authors: Lenartowicz Michał , Dziubiński Zbigniew , Jankowski Krzysztof W.
Published: May 2021

This paper presents an overview of research on the participation of Poles in sports and physical recreation over the past twenty years. This form of longitudinal analysis of trends in one area of cultural participation reveals significant changes in the rate of participation in sports. From having very low rates of participation in the 1990s, Polish society has progressed to be in the upper-middle group of sports-participating societies in the EU. Specific elements of this progress are described and explained. The authors argue that the significant growth in Poles’ participation in sports is largely due to changes that are not directly related to sports, including a rise in the number of graduates from higher education, improving quality of life, better sport facilities, and a more positive perception of sports across society. Finally, questions concerning further developments and threats to increased participation in sports are considered.
Pamięć religijna społeczności lokalnych — przykład Jedwabnego
Authors: Bogumił Zuzanna
Published: May 2021

This article looks on Jedwabne and the debate on Polish involvement in the Holocaust from the perspective of the Jedwabians. The author shows that until the erection of the national monument to the murdered Jews in Jedwabne in 2001, the Jedwabians’ memory of their Jewish neighbors was a part of local memory. Jedwabians commemorated the Jews in accordance with their frames of memory. The point is that the people in Jedwabne are first of all a members of parish community, so their memory is religious in nature. This has a profound effect on their relationship to the past and their perception of the role of monuments and memorials. By reconstructing the history of the erection of selected monuments in Jedwabne, the author shows which events of the past Jedwabians want to commemorate and what social function is played by memory of the commemorated events. She also considers to what degree memory of the group’s past lies at the base of the Jedwabians’ contemporary identity.
Człowiek w teorii — teoria w człowieku. Przykład biografii naukowej Czesława Robotyckiego (przyczynek do problemu upodmiotawiania dyskursów naukowych)
Authors: Kafar Marcin
Published: May 2021

This article considers the dichotomy between theory and life, treating it as a reflection of the process of subjectivization of discourse of the anthropological variety. In accord with the accepted premise, scientific theories do not emerge on their own but as result of complicated conditions at the meeting point of subjective-individual experience and the language of theory, leading to a close connection between the maker of given theory and the theory itself. In such a cognitive context, legitimacy is achieved by analytical-interpretative tasks, which consist in seeking meanings and discovering the sense of manifold signs of the presence of the human being in theory (thus someone real, who situates himself openly or covertly in the constructed descriptions of the world) and the theory in the human being, that is, the conceptual or otherwise indicated manifestations of self-understanding. An instructive exemplification of such analytical and interpretative work is the scientific autobiography of an outstanding Polish anthropologist, Czesław Robotycki, a scholar developing the contemporary theory of culture while taking into account cultural paradoxes and the attitude of anthropological distancing which were personally important to him.
O „Defamiliaryzatorach”. Uwagi na temat książki Waldemara Kuligowskiego
Authors: Mucha Janusz
Published: May 2021

This text contains the author’s thoughts on contemporary cultural anthropology in connection with a reading of Waldemar Kuligowski’s book Defamiliaryzatorzy. Źródła i zróżnicowanie antropologii współczesności [Defamiliarizers: Sources and Varieties of Contemporary Anthropology]. The author’s remarks concern the historical conditioners of the discipline’s current shape and its reflexivity, or how one’s own cultural context is understood and presented.
Rozum czy emocje? O odmianach autoetnografii oraz epistemologicznych przepaściach i pomostach między nimi
Authors: Kacperczyk Anna
Published: May 2021

In this article, the author discusses the limits of analytical and evocative autoethnography as described by the creators of these concepts and by scholars who embark autoethnographic projects. The author attempts to answer the question of whether it is possible to move freely between the fields of analytic autoethnography and evocative autoethnography. Can rechercher freely combine analytical and evocative motifs within the framework of the autoethnographies he create? What are the fundamental differences between these approaches? What indicates the analyticality or the suggestiveness of the autoethnographic text? For whom and what are such divisions necessary? These considerations correspond to the practical problems appearing in the application of the autoethnographic approach in contemporary social research.
Namiętności, uczucia czy emocje? Trzy tradycje myślenia o afektach i trzy doktryny afektów w polityce
Authors: Wigura Karolina
Published: May 2021

The author proposes tools for the analysis of affects in politics. First she distinguishes three historical ways of thinking about affective phenomena: the tradition of passion, deriving from ancient Greece; the tradition of feelings, begun by the Greek and Roman stoics; and finally the tradition of emotions, which was fully shaped in the nineteenth century and which most closely corresponds to the contemporary understanding of affective phenomena. The author concentrates on the meeting of two fields—the history of emotions and the philosophy of politics. Each of the three traditions of thinking has its own specific doctrine for dealing with affects, that is, it indicates ways of managing the unusually difficult challenges presented by our emotions. The author describes and critiques these approaches. She believes that although they are often burdened with presentism and anachronism, taking them into account in analyses of the social world—especially in the sphere of contemporary politics—could help understand the nuances of political thought and actions.
Nacjonalizm czy polityka tożsamości? Przykład kaszubski
Authors: Warmińska Katarzyna
Published: May 2021

The author focuses on the national emancipation strivings of part of the Kashubian elite in Poland. She proposes two interpretive views that could be helpful in understanding the ethnic processes presently occurring in the Kashubian community. The first derives from the category of nationalism, while the second refers to the concept of identity politics. The use of each makes it possible to perceive various aspects of the Kashubian national idea, although, as the author argues, the perspective of identity politics appears to be of more research interest and was the view primarily employed in analyzing the empirical material.
Dzielenie przestrzeni, praktyki graniczenia. Parkowanie, własność i przynależność na polskich osiedlach mieszkaniowych
Authors: Kurnicki Karol
Published: May 2021

Space gains significance through processes of social differentiation and bordering, and in consequence is connected with the creation and maintenance of social divisions. The author seeks confirmation of this fact at the level of everyday practices in housing settlements, tracking the mechanisms used by people in situations of contact and confrontation with others in the social space. He sets himself several aims: (1) he attempts to analyze selected spatial practices (parking within the settlement, the creation of belonging), reflecting the internal structuring strategies of housing settlements; (2) he points to the causes of that structuring, that is, the main contexts in which these practices occur and are strengthened; (3) he highlights the important role of space in processes of bordering and differentiation. Practices connected with parking and the creation of belonging, although apparently disparate and deriving from contrary spheres of social life make it possible to hypothesize that the striving for separation and the increased importance of space determine the organization of borders, divisions, and social relations in housing settlements.
Outline of the Concept of Order-generating Dimensions: A Case of Hypermodernity in Polish Society of Late Capitalism
Authors: Haratyk Karol , Biały Kamila
Published: May 2021

Reality of the late capitalism is not so much postmodern or modern, but it is simultaneously premodern, modern and postmodern. However, it is not a simple manifestation of these orders, but rather a result of the dynamic relationship between their manifestations, generating tensions. The orders boil down to the relationship between the three dimensions of social life — the dimension of bonds/relationships, work/activity, and identity. The first part of the text presents an outline of the concepts, the second one — its application on the example of the phenomena of hypermodernity in late-capitalist Poland, analyzed both at the level of public discourse and individual biography.
Transnational Contract Work and the Remaking of Class among Polish Workers in Construction and Shipyards: Between Collective Subjugation and Stratified Empowerment
Authors: Matyska Anna
Published: May 2021

In late capitalism, class is increasingly made on the move, not in static locations, as different forms of mobility resonate with the making of class in different ways. Poles are the leading European nation who move abroad. However, what the transnationalization of class means for the Polish workforce in the context of diversified employment and mobility regimes has remained underexplored to date. In this article transnational mobility is seen as enacted under the employment umbrella of transnational subcontractors and staffing agencies for short-term contracts abroad. The author focuses on Poles who work in the construction industry and shipyards and explores how transnational contract work conditions workers’class relations and experiences, with the aim of grasping the collective and individual experience of working and living “on a contract” and how this affects their situation in Poland. The article shows that what in most research appears as a working-class mobility populated by low-skilled and vulnerable Polish migrants emerges on the ground as far more heterogeneous and dynamic, marked by a common transnational subjugation as well as inner class hierarchies and antagonism. The argumentation draws on a multi-sited fieldwork conducted in Finland, Denmark, Norway and Poland in 2014–2017.
Między kanonem a archiwum — o systematyzacji i klasyfikacji miejsc pamięci
Authors: Malicki Krzysztof
Published: May 2021

The final element in a commemoration process is often considered to be a memorial plaque, monument, or museum. However, what precedes the creation of these material forms, or what happens to their message after they disappear or are transferred to the periphery of public interest, is often the most interesting for a researcher. The purpose of this article is to systematize and classify different forms of memorial sites by treating them as material and imaginary historical phenomena. By referring to the concept of functional and storage memory, as well as to Aleida Assman’s concepts of the canon and the archive, the article presents the stages in the production of memorial sites: from the first idea, through creation, to the moment when they cease to exist or are obliterated from the collective consciousness.
Tecnología, sociedad y educación: desafíos de las Tic en el desarrollo social y sus implicaciones en la práctica educativa
Authors:   Universidad Santiago de Cali, Villota Enríquez Jakeline Amparo
Published: May 2021

Los procesos de cambio científico y tecnológico han generado grandes transformaciones sociales y culturales, al tiempo que le han planteado a la educación la necesidad de producir alternativas sustantivas en su organización y funcionamiento. Esto significa que las tecnologías cumplen hoy un rol fundamental en la vida social, pero también en la educación, en la cual se han posicionado como estrategias fundamentales, no solo para favorecer el acceso a una mayor población estudiantil sino, también, para posibilitar una diversidad de formas de acceso al conocimiento.
Participación En El Ava Como Factor Asociado Al Sied: Enped :2016
Authors:   Universidad Pedagógica Nacional de Colombia, Holguín Villamil Oscar , Silva Mil Daniel Ribeiro ,   Universidade Federal de São Carlos
Published: May 2021

Na cidade de São Carlos, Estado de São Paulo no Brasil se desenvolve desde o ano 2012 o encontro bianual de investigadores, pesquisadores de educação a distância: SIED:EnPED. Com caráter internacional e alcance de simpósio, em suas primeiras versões, constituiu um cenário de encontro e concentração acadêmica que há conseguido convocar em cifras estatísticas, mais de oitocentos assistentes, em parte graças a modalidade mista do evento, que coerente com o espírito da educação a distância, tem logrado tanto na etapa virtual, quanto na presencial, em cada uma das versões onde se promove a cercania da educação através do uso das tecnologias e da cultura digital.
Estrategias Que Utilizan Los Estudiantes Para Desarrollar El Pensamiento Tecnológico: Una Mirada Desde Los Artefactos Tecnológicos
Authors:   Universidad Santiago de Cali, Villota Enríquez Jakeline Amparo , Agudelo Zapata Ana Melisa ,   Universidad Santiago de Cali, González Valencia Heriberto ,   Universidad Santiago de Cali, Riascos Forero Yilton Ovirne ,   Universidad del Cauca
Published: May 2021

El área de tecnología e informática permea gran parte de los contextos educativos, lo cual exige una práctica pedagógica reflexiva, de tal forma que el pensamiento tecnológico requiere de unas estrategias que permitan la apropiación de dicho pensamiento en el aprendizaje del estudiante. En el proceso de aprendizaje particularmente del área de tecnología e informática, “se evidencian pocos estudios donde el estudiante utiliza, elementos como: el trabajo autónomo, crítico y la utilización de estrategias que faciliten la apropiación del pensamiento tecnológico.
THE CHANGES OF RENAL FUNCTION STATUS BASED ON PROTEINURIA AND GLOMERULUS FILTRATION RATE IN PATIENTS WITH HISTORY OF PREECLAMPSIA WITH SEVERE FEATURES
Authors: Adilla Ardy Chairul , Panusunan Lubis Muara , Adeya Adella Cut , Partogi Pasaribu Hotma , Rusda Muhammad , Rizki Yaznil Muhammad
Published: May 2021

Background: Preeclampsia with severe features is an endothelial disease that causes renal system
disorders during pregnancy. Preeclampsia is an important cause of acute kidney injury and risk for
chronic kidney disease.
Methods: This study was a case series conducted at the Department of Obstetrics and Gynecology, H. Adam Malik General
Hospital Medan, Indonesia starting from December 2019 until January 2020. Total sampling technique was employed
obtaining 31 subjects with a history of preeclampsia with severe features for at least 3 months to 2 years postpartum, without a
history of chronic disease, diabetes mellitus, and congenital kidney disorders. Proteinuria, serum creatinine, and GFR
calculations were performed.
Results: There were 31 patients who met the inclusion and exclusion criteria. At a time interval of 4 - ≤13 months postpartum,
2
levels of proteinuria +1 (0-2), serum creatinine 0.81 ± 0.21 mg/dl, and levels of GFR 109.57 ± 25.13 (ml/min/1.73 m ). Whereas at
the time interval of >13 - 24 months postpartum, levels of proteinuria +1 (0-3), serum creatinine 0.85 ± 0.23 mg/dl, and GFR
2
levels of 104. 41 ± 28.45 (ml/min/1.73 m ). The mean of serum creatinine before delivery was 0.69 ± 0.15 mg/dl and after delivery
was 0.83 ± 0.22 mg/dl. The mean of GFR postpartum at group of history of early onset preeclampsia was 103.07 ± 25.23
2 2
(ml/min/1.73 m ) and group of history of late onset preeclampsia was 113.40 ± 28.24 (ml/min/1.73 m ).
Conclusion: There was a tendency for a decrease in renal function among women with a history of preeclampsia with severe
features with ndings of persistent proteinuria from more than 3 to 24 months postpartum, an increase in mean of serum
creatinine levels from before and after delivery and a decrease in GFR, but it was not signicant. This was related to the slow
course of chronic kidney disease, so it had to be followed up periodically.
COMPARISON OF THE EFFICACY OF ENDOSCOPIC TYMPANOPLASTY WITH MICROSCOPIC TYMPANOPLASTY
Authors: Tigga Anjana , Dhingra Shruti
Published: May 2021

Introduction: Otological surgery has progressed rapidly over the past century. With the recent
introduction of the 3-chip camera system and high denition video systems, endoscopes now
provide ultra high resolution images of the middle ear that were never seen previously. We conducted this study to
compare the efcacy of endoscopictympanoplasty over microscopic tympanoplasty in terms of preoperative ease of
surgery including visualisation of ossicles and eustanchian tube and intraoperative bleeding, graft uptake, hearing
improvement, post-operative pain score, post-auricular hypoesthesia, duration of hospital stay etc.
Methods: The present study is prospective observational study, conducted in a Tertiary Health Care Centre.
Results: Endoscopic tympanoplasty has many advantages over microscopic tympanoplasty and can be a better
alternative or adjuct to microscopic tympanoplasty.
Conclusion: Endoscopic ear surgery provides a better magnication, wide eld view, and the ability to look around
corners. Further more transcanal endoscopic ear surgery (TESS) approaches transform external auditory canal into a
minimally invasive surgical portal to access middle ear disease. The ease of surgery improves with time and has a
gradual learning curve. The graft uptake rate is comparable with both approaches. The overall satisfaction score in
terms of reduced pain and hypoesthesia with decreased hospital stay is higher in endoscopic approach.
The Use of Bagasse Ash as a Source of Silica for Production of Container Glass
Authors: Muhammed J.O. , Alemaka E.M
Published: May 2021

The study focused on the feasibility of recycling sugarcane bagasse ash (SCBA) to produce container glass. The bagasse was calcined through a Gallenkamp muffle furnace at 6000C and then held at 7000C for 1 ½ hrs and large amount of bagasse ash was obtained. 30 and 18 mesh sieves were used simultaneously to produce a fine powdered of the materials. 5g of SCBA sieved, calcium carbonate and sodium carbonate were passed through atomic absorption spectrophotometer. The result reveals SiO2 76.34wt%, Al2O3 8.55wt%, Fe2O3 2.93wt%, Na2O 0.12wt%, TiO2 0.80wt%, K2O 1.50wt%, CaO 0.07wt%, SO3 2.25wt%, Cr2O3 0.05wt%, Mn2O3 0.06wt% and LOI 6.42wt%. Interestingly, the ash contained high amount of silica of 76.34wt% which could supply all SiO2 needed to produce soda lime silica glass. A container glass batch composition was formulated from 95.899g of SCBA, 19.220g of CaCO3 and 25.556g of Na2CO3 and fired in muffle furnace at temperature between 11000C-12000C for 3 hours. The resulting glass was amber in colour which signifies the presence of iron oxide (Fe2O3) and sulphur trioxide (SO3) in bagasse ash. This implies that the ash can be used to produce amber glass for beverages and storing pharmaceutical drugs especially those which are sensitive to light.
Comparative Analysis of the Adsorption of Methylene Blue Using Magnetised and Non-Magnetised Coconut Shell Biochar
Authors: Musa A
Published: May 2021

It is envisaged that magnetisation might alter the sorption behaviours of magnetised biochars due to some variation in the physicochemical properties from their precursor. This study evaluated the adsorption behaviours of a coconut shell biochar produced at 600 °C, CSB600, and its magnetised pair, MCSB600, in the adsorption of methylene blue (MB) from aqueous solutions. Langmuir, Freundlich and Redlich-Peterson isotherm models were used to describe the experimental isotherm using linear and nonlinear regression methods to determine the best fit for MB adsorption from the batch experiments conducted. The Langmuir model proved to be the best fit to explain the experimental data as it had the highest R2 (0.9684 and 0.9855) from linear regression and the lowest hybrid fractional error function, HYBRID (4.58, 1.145) and marquardt’s percent standard deviation, MPSD (10.61, 5.04) error function values from the nonlinear regression methods with maximum monolayer adsorption capacities of 5.590 and 5.229 mg/g for CSB600 and MCSB600 respectively. The magnetised biochar exhibited similar adsorption characteristics to what was observed for the non-magnetised biochar and only about 6.46% lower MB adsorption capacity was recorded. A p-value of 0.088 obtained suggested the isotherms were similar and therefore, magnetisation did not affect the adsorption of MB.
Implementation of Hygiene and Environmental Sanitation in Under Five Years Old Diarrhea Patients at Surabaya Primary Health Center
Authors: Rehana Anindita , Setiabudi Rebekah Juniati , Sulistiawati Sulistiawati , Wahyunitisari Manik Retno
Published: May 2021

Surabaya has the most cases of diarrhea in East Java, with the highest detection targets in Gading Health Center (2346 cases) and Mojo Health Center, with diarrhea cases handled by 1322 cases. This study aimed to describe hygiene and environmental sanitation in under-five diarrhea patients in the working area of Surabaya Health Center. This study used a survey method, descriptive approach, interviews, and questionnaires in October 2019-March 2020. The results showed 62,2% of under-fives ‘drinking water sources were ineligible, 86,5% of mothers’ handwashing behavior were ineligible, 67,6% of the use of serving hoods were ineligible, 100% of food ripeness level were eligible, 59,5% of the distance between well and septic tank were eligible, 100% of latrines were eligible, 89,2% of sewerages were ineligible, and 83,8% of waste disposal facilities were ineligible. This research concluded that drinking water sources, handwashing behavior, serving hoods, sewerages, and waste disposal facilities were ineligible. The problems can be solved by consuming branded gallons of water / well water or refillable water that is boiled before consumption, improving how to wash hands with soap and running water, covering food using a serving hood, use the cover to close the sewerage, and throwing the trash into the temporary shelter (TPS) as much as two times a week or less than 3x24 hours.
Influence of energy supply of diet of cows on dairy productivity and biochemical blood status
Authors:   Doctor of Biological Sciences, Professor, Chief Researcher of the Department of Farm Animal Feeding, Federal Research Center of Animal Husbandry – VIZ named after Academician L. K. Ernst, Podolsk, Russian Federation, Golovin A. V. , Rykov R. A. ,   Senior Researcher of the Department of Physiology and Biochemistry of Farm Animals, Federal Research Center for Animal Husbandry – VIZ named after Academician L. K. Ernst, Podolsk, Russian Federation
Published: May 2021

In a research and production experiment carried out in the milk farm of «Klenovo-Chegodaevo» (Moscow) on two groups of holsteinized black-and-white cows with a milk yield of 7000 kg of milk per lactation, 20 heads each, it was found that an increase in the concentration of metabolic energy (CME) in the dry matter of the cows ration from 10,7 to 11,0 MJ/kg in the period from 21 to 120 days of lactation, due to the inclusion of protected fat in the diet of cows in the experimental group, in the amount of 300 g/head/day, produced on the basis of vegetable raw materials, contributed to an increase in milk yield of 4% fat and milk fat yield by 9,5% (p<0,05) for 120 days of lactation, while reducing feed costs for its production, expressed in CME by 5,4%. More intensive milking of cows in the experimental group in the new calving period had a positive effect on the tendency to increase milk yield of standard (4%) fat content and the yield of milk fat in general for 305 days of lactation by 7,4% (p>0,05), compared with control. Calculations of economic efficiency have shown that the use of fractionated fat in the amount of 300 g in the ration of high-yielding cows during the milking period from 10,7 to 11,0 MJ/kg can reduce the cost of 1 quintal of milk of base fat content (3,4%) produced by cows from the experimental group for the first 120 days of lactation by 43,6 rubles. or by 1.9% while receiving additional profit from its sale in comparison with the control in the amount of 3502,5 rubles. for 1 head. Biochemical studies of the blood of cows in the experimental groups, carried out on the 120th day of lactation, revealed a tendency for a more intense course of protein and lipid metabolism in the body of cows was revealed, who received a diet with an increased to 11,0 MJ/kg level of CME in dry matter of the diet, due to the use of protected vegetable fat in an amount of 300 g.
DNA diagnostics of populations of the Blackand- White breed by the Beta-Casein Locus
Authors:   Doctor of Biological Sciences, Professor, Chief Scientific Officer Cattle Genetics and Genomics Laboratory, Ernst Federal Research for Animal Husbandry Podolsk-Dubrovitsy, Russian Federation, Marzanov N. S. , Devrishov D. A. ,   Doctor of Biological Sciences, Corresponding Member of the Russian Academy of Sciences, Professor of the Department of Immunology and Biotechnology, Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin, Moscow, Russian Federation, Marzanova S. N. ,   Candidate of Biological Sciences, Associate Professor of the Department of Immunology and Biotechnology, Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin, Moscow, Russian Federation, Getokov О. О. ,   Doctor of Biological Sciences, Professor of the Department of Animal Science and Veterinary and Sanitary Expertise, Kabardino-Balkarian State Agrarian University named after V.M. Kokov, Nalchik, Russian Federation, Abylkasymov D. A. ,   Doctor of Agricultural Sciences, Professor, Professor of Department of Animal Biology and Zootechny, Tver State Agricultural Academy, Tver-Sakharovo, Russian Federation, Libet I. S. ,   Postgraduate of Department of Animal Biology and Zootechny, Tver State Agricultural Academy, Tver-Sakharovo, Russian Federation
Published: May 2021

The allelotypes of the analyzed populations of Black-and-White cows bred in the Tver Region and the Republic of Ingushetia have been reported. The strong effects of breed and trends for its production parameters in the analyzed Black-and-White cows bred in the Tver Region and the Republic of Ingushetia, rather than the ecological impact, are revealed. The frequency of the «bad» A1 allele at a beta-casein locus was higher in the animals in the Tver Region, comprising 0,56, while the “normal” A2 allele was reported at a frequency of 0.44. Quite similar results were obtained for the analyzed cows in the Republic of Ingushetia. Thus, the frequencis of the «bad» A1 allele and the normal allele comprised 0,52 and 0,48, respectively. The findings based on the survey results can indicate that the selective breeding activity in the Tver Region herd requires a shift towards increasing the occurrence of the favourable A2 alleles due to selecting the bull sires with the target genetic traits.
Study the effectiveness of hemostatic drug «Hemoblock» when conducting laser turbinectomy
Authors:   Doctor of Veterinary Sciences, Head of Department of Physiology, Pharmacology and Toxicology, Moscow State Academy of Veterinary Medicine and Biotechnologies – MVA by K. I. Skryabin, Moscow, Russian Federation, Del’tsov A. A. , Averin N. A. ,   Postgraduate Student of the Department of Physiology, Pharmacology and Toxicology, Moscow State Academy of Veterinary Medicine and Biotechnologies – MVA by K. I. Skryabin, Moscow, Russian Federation, Novikov S. I. ,   Veterinarian of the SVC «MedVet», Moscow, Russian Federation
Published: May 2021

Many brachycephalic breeds suffer from an early, lifelong respiratory disorder called brachycephalic obstructive airway syndrome (BOAS). Such animals are indicated for planned surgical correction. Recently, the endoscopic laser turbinectomy (LATE) method has been proposed, in addition to those already in use. Parenchymal bleeding is common during this procedure. We have studied the effectiveness of the drug «Hemoblock» for stopping them.
Monitoring of helminthiasis of the polar bear (Ursus maritimus) in the wild and zoos of Russia
Authors:   Candidate of Veterinary Sciences, of the Department of Parasitology and Veterinary and Sanitary Expertise, Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin, Moscow, Russian Federation, Esaulova N. V. , Naydenko S. V. ,   Doctor of Biological Sciences, Professor, Director A. N. Severtsov Institute of Ecology and Evolution, Moscow, Russian Federation, Rudakova O. G. ,   Student of the Faculty of Veterinary Medicine, Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K.I. Skryabin, Moscow, Russian Federation
Published: May 2021

The article provides information on monitoring studies of polar bear helminthiasis in the wild population of Franz Josef Land and in zoos in Russia. Wild bears were found to be free from invasion. Analysis of fecal samples from polar bears from 17 zoos showed that the total extensiveness of the invasion was 21%, 2 types of helminths were identified: Baylisascaris transfuga and Diphyllobothrium sp. Samples with helminth eggs were found in zoos in Nizhny Novgorod, Rostov-on-Don, Penza, Udmurtia, Khabarovsk, Novosibirsk, Kazan, Krasnoyarsk, Moscow, Volokolamsk, Seversk, Perm.
REVIEW LITERATURE: MENGKAJI PEMBERIAN PIJAT BAYI DENGAN MUROTTAL AL-QUR’AN UNTUK MENINGKATKAN DURASI TIDUR BAYI USIA 3-12 BULAN
Authors: Wahyuningtyas Dian
Published: May 2021

ABSTRACT

 

Introduction: Most babies (44.2%) had sleep disturbances, and 72% of parents thought that this was not a significant problem. Sleep problems in babies are generally due to insufficient sleep in the baby. One of the efforts to improve baby sleep uration is by offering baby massage accompanied by the chanting of the Al-Qur'an murottal. Methods: International literature searched using electronic media by using several databases such as Google Scholar, Link Spinger and PubMed. The article used is 8 articles that discuss the effect of baby massage on baby sleep and the effect of listening to the Murottal Al-Quran on the duration of baby sleep. Results: There was a significant effect between infant massage and murottal Al-Qur'an on the increase in infant sleep duration. Discussion: One way to meet the sleep needs of babies is by increasing the duration of the baby's sleep. Efforts to increase sleep duration in babies can be done by giving baby massage accompanied by Al-Qur'an murottals. Baby massage can increase serotonin neurotansmiter levels, and listening to the murottal Al-Qur'an, the brain can produce neuropeptide substances so that it provides feedback in the form of a sense of comfort, safety, after that the baby's sleep will be more soundly. Conclusion: Baby massage with murottal Al-Qur'an is effective for increasing sleep duration in babies.

Keywords: Baby massage; Murottal; length of sleep for babies
Development of the Processing Procedure for Palm Fiber with Communities for Industrial Handmade Product Creation
Authors: Egwutvongsa Songwut , Setvisat Somchai , Pirumgran Thanat
Published: May 2021

This research used a mixed-methods approach to focus on the properties and satisfaction assessment of effectiveness for palm fibers in the Khonsan Sub-District community group in Chaiyaphum province with a total of 113 people. In addition, the study used a 5-point rating scale which had a Cronbach’s Alpha Coefficient value at the level of 0.97, in addition to two-way ANOVA. The study presented testing results by ordering from coconuts, palms, betel nuts, and tans with the fiber tensile ratings of 67.45 N, 57.19 N, 56.75 N, 52.49 N, and fiber tensile ratings of 6.80%, 7.30%, 7.12%, and 6.25%, respectively. In this case, the betel nut fibers and tan fibers showed durability to wet washing and the dry period as the most common way. Thus, the satisfaction assessment of tan fibers was at the most satisfactory level, (Mean=4.49, S.D. =0.57), followed by the coconut fibers at the excellent level, (Mean = 4.47, S.D. =0.56) and the betel nut fibers at the moderate level, (Mean=3.35, S.D. =0.71). Levene’s test showed that p was equal to 0.00, indicating that the factors of type and properties of palm fibers were at a varied level with statistical significance. Similarly, the fiber characteristics and properties of palm fibers for each type had an F value equal to 11.45 and Sig. equal to 0.00. In addition, it was found that there was at least one pair different from other pairs, such as coconut fibers and tan fibers. Consequently, the research with community participation showed that it appeared to confirm the balance between the effectiveness of materials, labor skills, human labor, and the stabilization of life. As a result, it affected the satisfaction at the excellent level for people in the development communities (Mean=4.10, S.D. =0.78).

 

Received: 12 January 2021 / Accepted: 24 March 2021 / Published: 10 May 2021
Saving the Curriculum or Saving Life? The Risk of Opening Schools in South Africa at the Peak of the Country’s COVID-19 Pandemic
Authors: Mathebula Rifumuni Nancy , Runhare Tawanda
Published: May 2021

Despite stringent preventative measures, the corona virus disease of 2019 (COVID-19) pandemic had adversely affected the contemporary global community. The pandemic has had an inevitable negative impact on education globally. This paper critiques the South African Department of Basic Education’s opening of schools at the beginning of severe winter in June 2020 based on the claim of having the capacity to implement preventive measures against the spread of COVID-19 in schools.  Using literature, government statements and constitutional frameworks, we argue that it was unrealistic, irrational and contradictory to open schools when the government was decongesting other public sectors and at a time when the country was in severe cold season, which is suitable for the survival of the corona virus. We note that schools opened when the COVID-19 infections and fatalities were heightening in the country, when winter was at its doorsteps and personal protective equipments (PPEs) were inadequately supplied in schools. We also argue that it was a myth that children are safe from COVID-19 and saving the school calendar at the expense of human life was catastrophic and therefore schools should not have opened in the severe winter, without a cure or vaccine for the COVID-19.

 

Received: 26 November 2020 / Accepted: 27 January 2021 / Published: 10 May 2021
Properties of the solutions of those equations for which the Krasnoselskii iteration converges
Authors:   DEPARTMENT OF MATHEMATICS BABES-BOLYAI UNIVERSITY KOGALNICEANU 1, 400084, CLUJ-NAPOCA, ROMANIA E-mail address: iarus@math.ubbcluj.ro, RUS IOAN A.
Published: May 2021

Let (X, +, R, →) be a vectorial L-space, Y ⊂ X a nonempty convex subset of X and f : Y → Y be an operator with Ff := {x ∈ Y | f(x) = x} 6= ∅. Let 0 < λ < 1 and let fλ be the Krasnoselskii operator corresponding to f, i.e., fλ(x) := (1 − λ)x + λf(x), x ∈ Y. We suppose that fλ is a weakly Picard operator (see I. A. Rus, Picard operators and applications, Sc. Math. Japonicae, 58 (2003), No. 1, 191-219). The aim of this paper is to study some properties of the fixed points of the operator f: Gronwall lemmas and comparison lemmas (when (X, +, R, →, ≤) is an ordered L-space) and data dependence (when X is a Banach space). Some applications are also given.
The revision of some results for Bernstein-Stancu type operators
Authors:   DEPARTMENT OF MATHEMATICS AND COMPUTER SCIENCE NORTH UNIVERSITY OF BAIA MARE VICTORIEI 76, 430122 BAIA MARE, ROMANIA E-mail address: danmiclausrz@yahoo.com, MICLAUS DAN
Published: May 2021

In the present paper the author revises some known results, respectively establishes new results for Bernstein-Stancu operators and for a particular case of the same operators, introduced first by L. Lupas¸ and A. Lupas¸.