bluuebunny/crossref_metadata_2025 huggingface dataset:
Preclinical evaluation of analgesic activities of Barringtonia Racemosa
Authors: Srujana A , Lavanya Pasula , Padma Sri D , Bhavani Koukuntla , Nikhitha Chouti , Shireesha Derangula
Published: February 2023

Background: Pain is the major devastating health problems. Barringtonia racemosa Roxb. (Lecythidaceae) is the one which is frequently used to treat pain by traditional healers in Ethiopian folk medicine. However, the plant has not been scientifically evaluated for its traditionally claimed use. The present study aimed at the investigation of analgesic activities of ethanol root extract of Barringtonia racemosa Roxb in Albino rats (Wistar) model. Methods: Successive maceration was used as a method of extraction using solvents ethanol. After extraction of the roots, the crude extract was evaluated for its analgesic activities using tail flick and hot plate method. The extract was evaluated at 100, 200 and 400 mg/kg doses. The positive control groups were treated with Aspirin 20 mg/ kg i.p, distilled water (10 mL/kg) treated rat were assigned as negative controls. Results: Barringtonia racemosa Roxb root extract at all test doses showed statistically significant antinociceptive activity in both model in a dose dependent manner (p < 0.01 and p < 0.001). The greater analgesic activity was observed by the maximum dose of the extract (400 mg/kg) in both tail flick and hot plate method method. Conclusion: In general, the data obtained from the present study elucidated that the extract possessed a significant analgesic activities and recommended for further studies.
Design and evaluation of liposomal formulation of zidovudine
Authors: P Spandhana , Supraja Govindu , Shirisha Dongiri , Usha Rani Sabavat , Firdouse Juveria , Sree Veena Beemani
Published: February 2023

The drug release from Liposomes depends on many factors including the composition of Liposomes, the type of drug encapsulated and nature of the cell. Once it is released a drug that normally crosses the membrane of a cell will enter the cell, other drugs will not enter. Zidovudineis a drug with narrow therapeutic index and short biological half-life. This study aimed at developing and optimizing liposomal formulation of Zidovudinein order to improve its bioavailability. In evaluation study the effect of the varying composition of lipids on the properties such as encapsulation efficiency, particle size and drug release were studied. Phase transition study was carried out to confirm the complete interaction of Zidovudine with bilayer structure of liposome. Moreover, the release of the drug was also modified and extended over a period of 8 h in all formulations.F3emerged as the most satisfactory formulation in so far as its properties were concerned. Further, release of the drug from the most satisfactory formulation (F3) was evaluated through dialysis membrane to get the idea of drug release.
Navicula sp Cell growth at different salinities
Authors: . Wardi , Pagi Sektiana Sinar , Suprakto Bambang
Published: February 2023

Navicula sp is one of the microalgae which plays an important role in fish and shrimp hatchery activities. Navicula sp. which can detect the surrounding environment and is able to adapt to various salinities. The purpose of this study was to determine the optimal salinity level for the growth of Navicula sp. The research was carried out on March 9 - 22 2022. The research location was carried out at the Natural Feed Laboratory of the Brackish Water Aquaculture Fishery Center (BPBAP) Ujung Batee Province of Aceh. This study used an experimental method with a completely randomized design (CRD), with 4 treatments and 3 replications. The treatment in this study is the difference in salinity: A (10 g/l), B (20 g/l), C (30 g/l), D (40 g/l). The results showed that treatment B with a salinity of 20 g/l had a significant effect (P <.0.05) on the other treatments. The results of the Duncan Significant Difference Test showed that the maintenance medium with a salinity of 20 g/l had the highest cell density (5.63x106 cells/ml), followed by the maintenance medium with a salinity of 30 g/l with a cell density (5.20x106 cells/ml)
EVASÃO ESCOLAR NO CURSO DE PEDAGOGIA
Authors: Coelho Diego Gomes de Mattos , Reis Neli Silva do Carmo , De Lima Simone Aparecida Barra Magalhães , Chrysóstomo Carla Sarlo Carneiro
Published: February 2023

O objetivo desse trabalho intitulado “Evasão Escolar no Curso de Pedagogia” é investigar o processo de formação inicial e continuada dos docentes do curso de licenciatura em pedagogia no ISEPAM, para melhores práticas docentes; através de questionário virtual. Tem como objeto de estudo as práticas pedagógicas. O problema envolve o questionamento: por que existe no ISEPAM um alto índice de alunos no curso de Licenciatura em Pedagogia, que tem acesso à universidade e quando conseguem dela fazer parte, em sua grande maioria abandonam o curso ou quando conseguem concluir não apresentam o Projeto Monográfico? Tem como público alvo docentes do Curso de Licenciatura em Pedagogia do ISEPAM. Antunes (2011) salienta a relevância da formação contínua e a constante atualização do professor para que se alcance o sucesso do processo educativo. A metodologia está caracterizada como bibliográfica por utilizar fontes teóricas; qualitativa por se apropriar da subjetividade dos autores utilizados; quantitativa, por gerar dados numéricos após a aplicação e análise de questionário destinado ao corpo docente do curso de Licenciatura em Pedagogia do ISEPAM, no município de Campos dos Goytacazes/RJ/Brasil. Também se caracteriza por exploratória, por investigar o fenômeno “Evasão Escolar no Curso de Pedagogia”, aproximando-o da comunidade científica. Os autores utilizados foram: Gadotti (2003), Freire (1996), Libâneo (2017), Sacristán (2013), dentre outros.
Ảnh hưởng của phụ gia trợ tương hợp đến tính chất của vật liệu composite nhựa gỗ trên cơ sở nhựa polyethylene tái chế
Authors: An Nguyễn Quý , Hùng Đào Quốc , Long Lê Văn
Published: February 2023

Tính chất của vật liệu composite nhựa gỗ chịu ảnh hưởng của nhiều yếu tố, trong đó, yếu tố mang tính quyết định đến tính chất của sản phẩm là khả năng tương tác tại bề mặt tiếp xúc giữa hai pha gỗ-nhựa. Để cải thiện khả năng tương tác giữa hai pha này, qua đó làm tăng cường tính chất cơ học, việc sử dụng các phụ gia trợ tương hợp là rất cần thiết. Trong bài báo này, ảnh hưởng của phụ gia trợ tương hợp MAPE đến các tính chất của vật liệu composite nhựa gỗ trên cơ sở nhựa polyethylene tái chế đã được nghiên cứu. Kết quả nghiên cứu cho thấy rằng: việc bổ sung thêm MAPE đã cải thiện khả năng gia công của vật liệu ở trạng thái nóng chảy, làm tăng cường các tính chất cơ học và giảm đáng kể độ hấp thụ nước. Quan sát ảnh hiển vi điện tử quét (SEM) cấu trúc của vật liệu cho thấy rằng: khi sử dụng phụ gia tương hợp, bột gỗ phân tán đồng đều hơn trong nền nhựa, không còn sự phân tách pha rõ rệt so với mẫu đối chứng. Khi bổ sung phụ gia tương hợp MAPE với hàm lượng 4 pkl: vật liệu có độ bền kéo tăng khoảng 62 % (từ 6,67 MPa lên 10,84 MPa), độ bền uốn tăng khoảng 73 % (từ 12,26 MPa lên 21,12 MPa).
Nghiên cứu áp dụng hệ thống ô ngăn hình mạng Neoweb trong gia cố ổn định trượt sâu mái dốc
Authors: Vinh Đặng Thế , Tới Nguyễn Quốc
Published: February 2023

Đất gia cố Neoweb có thể được sử dụng trong nhiều lĩnh vực địa kỹ thuật, tuy nhiên, có rất ít thông tin về phân tích hoạt động của mái dốc gia cố Neoweb. Do chiều cao của Neoweb, tấm đệm được gia cố Neoweb có nhiều khả năng cung cấp hiệu ứng dầm hoặc tấm hơn là hiệu ứng màng phẳng. Mục đích của bài báo này là sử dụng mô hình dầm để mô phỏng hành vi của Neoweb như một tấm nền móng có thể chịu được cả ứng suất uốn và ứng suất màng để phân tích độ ổn định của các mái dốc được gia cố Neoweb. Ngoài ra, sức kháng bề mặt giữa Neoweb-đất đã được xem xét. Mô-đun Young của đất bọc Neoweb thu được từ mô-đun đàn hồi của đất không gia cố và mô-đun kéo của gia cố Neoweb bằng cách sử dụng một phương trình thực nghiệm.
Xây dựng quy trình thực hiện dự án Scan to BIM và ứng dụng vào case study
Authors: Thư Nguyễn Anh , Học Trần Đức , Lâm Vũ Xuân
Published: February 2023

Bên cạnh ứng dụng BIM thì Scan to BIM cũng mang lại nhiều lợi ích trong lĩnh vực xây dựng. Các quy trình thực hiện Scan to BIM mà các nghiên cứu hiện nay đang hướng tới hiện đang còn ở mức tổng quan hoặc đi sâu vào quy trình sử dụng thiết bị, phần mềm mà chưa đề cập tới khái niệm LOA (level of accuracy – mức độ chính xác), chưa có một quy trình tổng quát cho quá trình thực hiện dự án Scan to BIM. Dự án ở đây đi từ các công tác chuẩn bị, lên kế hoạch, thực hiện tại hiện trường và xử lý dữ liệu, bàn giao cho khách hàng, chủ đầu tư. Qua đó, giúp người đọc hình dung được những khái niệm cơ bản cần phải nắm khi thực hiện một dự án Scan to BIM, cũng như làm tài liệu giúp các tổ chức, doanh nghiệp có thể tham khảo nếu muốn phát triển hay áp dụng Scan to BIM. Từ đó, nghiên cứu ứng dụng thực tiễn quy trình đề xuất cho một dự án nhằm đánh giá tính khả thi và hiệu quả của quy trình.
Một số vấn đề về quy hoạch không gian ngầm cho phát triển đô thị tại thành phố Hồ Chí Minh
Authors: Phú Trần Quang , Cường Trần Minh
Published: February 2023

Với sự phát triển của đô thị cùng với tiến bộ của khoa học công nghệ, không gian dưới lòng đất có thể sử dụng với nhiều chức năng và mục đích khác nhau (như thương mại, dịch vụ, công cộng, hạ tầng kỹ thuật…), và các công trình này được liên kết chặt chẽ với nhau và với công trình, cơ sở vật chất bên trên bề mặt đất. Quy hoạch không gian ngầm là tổ chức không gian xây dựng dưới mặt đất để xây dựng các công trình bao gồm: Công trình công cộng ngầm, công trình giao thông ngầm, các công trình đầu mối kỹ thuật ngầm và phần ngầm của các công trình xây dựng trên mặt đất, công trình đường dây, cáp, đường ống kỹ thuật ngầm, hào và tuy nen kỹ thuật. Bài báo trình bày một số vấn đề về quy hoạch không gian ngầm cho phát triển đô thị tại thành phố Hồ Chí Minh.
Hệ thống nén dọc trục đa tầng và thực nghiệm nén cây tre
Authors: Phong Lê Trung , Phong Đặng Tuấn
Published: February 2023

Thí nghiệm nén dọc trục là một trong những thí nghiệm cơ bản để đánh giá khả năng chịu tải của vật liệu hoặc cấu kiện kết cấu. Trong nghiên cứu này, một hệ thống nén dọc trục đa tầng cơ động cho phép nén được với nhiều mẫu với nhiều khoảng độ dài khác nhau. Cùng với đó, một hệ thống gia tải, đọc lưu dữ liệu tự động, hiển thị dữ liệu đo theo thời gian thực cũng được thiết kế cho hệ thống thí nghiệm. Ba thí nghiệm thử trên các mẫu tre để đánh giá nhanh hệ thí nghiệm đã được thực hiện cho thấy khả năng ứng dụng của hệ thí nghiệm. Việc thiết kế và vận hành hệ thí nghiệm giúp các nhà nghiên cứu làm chủ được công nghệ, tránh những hạn chế khi sử dụng một hệ thống đồng bộ từ các nhà sản xuất.
Các giải pháp nâng cao chất lượng của tường xây gạch không nung bê tông
Authors: Cảnh Trần Bá
Published: February 2023

Gạch không nung bê tông đã và đang được nghiên cứu rất nhiều ở Việt Nam để thay thế gạch đất sét nung, điều đó đem lại hiệu quả cả về kinh tế và môi trường. Tuy nhiên, thực tế cho thấy việc sử dụng gạch không nung trong các công trình xây dựng cũng còn những hạn chế nhất định mà phổ biến nhất là hiện tượng tường xây bị nứt và thấm. Trong bài báo này, đã chỉ ra được thực trạng, nguyên nhân nứt và thấm tường xây gạch không nung bê tông trong công trình xây dựng, từ đó đề xuất các giải pháp khắc phục nhằm nâng cao chất lượng của tường xây bằng gạch không nung bê tông. Các nguyên nhân nứt tường và hiệu quả của các giải pháp nâng cao chất lượng tường xây gạch không nung được kiểm chứng bằng mô phỏng số trong phần
Översättning och världslitteratur
Authors: Melberg Arne
Published: February 2023

Translation and World Literature

In this text I discuss the relation between translations and »world literature«. I base my argument on some experiences of my own as a teacher and researcher, on two Norwegian dissertations on the problematics of translation, and on a sketch of the development of »world literature« including some speculation on the situation of »world literature« today and, perhaps, tomorrow.

I base this part on an essay by Susan Sontag: »The World as India«. Sontag is inspired by Walter Benjamin when she imagines translation to be like a  »ferry« between separate shores of language and literature. A similar metaphor, used by Hans Georg  Gadamer, equates translation to a »bridge«.

My argument is that these metaphors are already slightly antiquated: the world wide web means new conditions for translation and linguistic identity.
Världen slutar med dig
Authors: Mehrstam Christian
Published: February 2023

The World Ends With You: Reading as Participation

The last decades of research in the education field have shifted focus from the cognitive activities of autonomous individuals to participants’ activities in situated learning practices. Yet, emphasis in the Bologna Process and in the on-going reforms of swedish education is on the learning subject as a free, rational consumer of neatly defined competencies that the labour market requires. The article argues that a stronger participants’ perspective could help resist a neoliberal trend in education. Instead of thinking of participation as something that individuals do, the notion could be built upon radical constructivist systems theory. Learning and participation should be put in terms of construction and reconstruction of identity within evolving social systems. With the example of a piece of recent ergodic literature, the Nintendo DS game The World Ends With You, it is demonstrated how the common educational activity of reading can be described as a process of simultaneous construction of reader identity and meaning within a specific practice. The article argues that such a perspective counters the core notions in the neoliberal understanding of education, notably the autonomous individual and learning as an active acquisition of neatly defined knowledge that is »out there«. A new participants’ perspective could also have immediate consequences for the choice of method and theme in every day practice in education.
Varför läsa litteratur – i Ryssland?
Authors: Sarsenov Karin
Published: February 2023

Why Read Literature – in Russia? Justifications in Russian Steering Documents

In Swedish educational debates, the question »Why study literature in school?« has been raised in connection with the theoretical development, often summarized as »the cultural turn.« The article strives to contribute to this discussion by comparing the development of educational discourse in Sweden, as analyzed by Magnus Persson, with the parallel development in Russia. Here, literature is a compulsory and separate school subject from the fifth to the eleventh grade. Since 1991, the educational system has undergone a radical reform, but the number of hours devoted to literature has not changed significantly. This would suggest that literature still is perceived as an important means of incorporating children into the national and political community. The target of this study is to identify authorities’ specific aims with devoting so much time to literature in school, as well as to elucidate in what way literature is to achieve these aims. Russian guidelines for the development of literature curricula published in the years 1991-2010 are examined to see just how literature is legitimated as a secondary school subject. Based on this material, the article draws conclusions about the rhetorical practices and ideological development of curricular discourse, its relationship to Soviet educational thought and the extent to which the cultural turn has influenced this sphere. The findings of Örjan Torell, a pioneering scholar in Russian-Swedish comparative educational studies, are also scrutinized and questioned on the basis of methodology.
Verkets förvandlingar
Authors: Viklund Jon , Rossholm Anna Sofia
Published: February 2023

Transformations of the Work: Ekelöf, Bergman, and Genetic criticism

This article discusses genetic criticism as an interdisciplinary field of study, focusing on its application in the analysis of film and literature. Genetic criticism analyses works of art as textual histories, placing particular emphasis on the creative process, rather than the “final” state of the work. The object of study is the “avant-texte”; traditionally understood as the critical reconstruction and examination of author’s drafts, manuscripts, proofs, and other kinds of annotations. Over the past few years, the application of genetic criticism has expanded to include a variety of media and art forms; this article dicusses the implications of these new interdisciplinary perspectives. The article presents a general theoretical introduction to genetic criticism, followed by two case studies involving the works of Gunnar Ekelöf and Ingmar Bergman. In both cases, the key concept of the “avant-texte” is discussed; however, in the study of film, the diachronic relation between “text” and “avant-texte” is reevaluated. Here, the intermedial dimension of the filmic text is reinforced, and issues pertaining to media materiality and technological media in film aesthetics alter the conception of “original”, “copy” and “version”.

There are a number of similarities and differences between Ekelöf and Bergman as writers and creators. Both use older drafts and notebooks extensively and, in both cases, the process of invention seems to emerge in the very material process of writing. Yet, Bergman’s notebooks are clearly focused, and may be regarded as an open genre suggesting new forms of mediation. By contrast, Ekelöf ’s continuous drafting of the same poem may be regarded both as a method of writing and a special trait in the author’s poetics. Ekelöf and Bergman both exemplify mediaspecific processes of creation, the various aspects of the “avant-texte”, and the ways in which the “avant-texte” suggests different aesthetic approaches to the work of art and artistic creation.

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Litteratur för integration av arbetarbarn
Authors: Vulovic Jimmy
Published: February 2023

Tales for the Integration of Working-Class Children: Idealism, Individualism and Nationalism in the Social Democratic “The Sunbeam” 1906–1909.

In the early twentieth century, the Swedish Social Democratic Youth Movement was possessed of a strong faith in the ability of literature to transform individuals and society as a whole. This article explores such idealistic faith in cultural education as it pertains to an organization for children called the “Story Time” movement. The purpose of the movement was both cultural and political. By allowing working class children to enjoy literature in the form of stories and poems, the organization aimed to integrate underprivileged children into bourgeois culture and society. The organization’s magazine “The Sunbeam” (Solstrålen) was an important tool in this endeavor. This article analyzes the magazine’s publication of children’s literature between 1906 and 1909. The analysis reveals how reformist Social Democratic ideology pervades the literature that the children were served: individualism, grass-roots nationalism, and the vision of the Social Democratic consensus society were recurrent themes in the stories and poems. This ideology is revealed when the stories and poems are related to both the Marxist ideological basis with which Social Democracy was reconsidered in the late 1800’s, and to the communist movement in Sweden that followed in the tracks of the 1917 Russian revolution and the 1919 Third International (Comintern).
Att skapa fogningar der inga finnes
Authors: Sjödin Alfred
Published: February 2023

Creating Intersections Where None Exist: Lidner, Oxenstierna and the Unity of the Long Poem

The article addresses the problem of literary unity as it is posed by two late eighteenth century long poems, “Året MDCCCXVIII” by Bengt Lidner and Skördarne by Johan Gabriel Oxenstierna. By investigating the relations between poetry, poetics and practical criticism, it seeks to document a situation in which new poems fail to achieve the kind of unity found in the epic poem. Instead, the poems are valued on behalf of their ability to seamlessly weave together disparate material, “creating intersections where none exist”, as one critic put it. The article then describes the reception of these poems during the romantic period, when literary unity was primarily understood in terms of “lyric” unity. What was at stake in the fragmentary unity of these poems, wedged as it were between two dominant paradigms of poetics?
Epileptik Nöbet ile Prezente Olan Nadir Bir Serebral Venöz Anomali Olgusu
Authors: DURMUŞ Burçin , ÖZKAYA Sefer
Published: February 2023

Amaç: ‘Venöz anjiom’, ‘serebral venöz malformasyon’ olarak isimlendirmeler olsa da günümüzde gelişimsel venöz anomaliler olarak adlandırılmaktadır. Venöz anomalilerin en sık görülen şekli serebral vasküler malformasyonlardır. Genellikle bilgisayarlı tomografi (BT) veya manyetik rezonans görüntüleme (MRG) taramalarında insidental saptanırlar. Bunun yanısıra hemoraji, iskemik inme, epileptik nöbet veya baş ağrısı ile klinik pratikte karşımıza çıkabilir. Bu çalışmada serabral venöz anomalilerin nadir bir epileptik nöbet nedeni olabileceğinin vurgulanması amaçlanmıştır.

Olgu: Daha önce epilepsi ve başka hastalık öyküsü olmayan 24 yaşında erkek hasta jeneralize tonik klonik nöbete benzer şekilde dört ekstermitede birden olan kasılma ve bilinç kaybı ile acil servise getirildi. İki dakika süren tüm vücutta kasılma, idrar inkontinansı, ağızda köpürme ve çenede kitlenme olduğu ve 1 saat boyunca bilincinin kapalı kaldığı öğrenildi. Özgeçmiş ve soygeçmişinde özellik yoktu. Bilinç açık koopere oryante idi. Vital bulgularında; kan basıncı: 125/80 mmHg, nabız: 88 atım/dk, solunum sayısı: 13/dk, ateş: 36°C olarak ölçüldü. Nörolojik sistem dahil diğer tüm sistem muayeneleri olağandı. Yapılan tam kan sayımı, elektrolit değerleri, karaciğer ve böbrek fonksiyon testleri normaldi. Beyin BT normal saptandı. Takipte dirençli kusması ve baş ağrısının olması üzerine kontrastlı beyin MRG yapıldı. Kontrastlı beyin MRG’nde sağ oksipitalde cilt altı bölgeden parankime uzanan T1 ve T2 sekansta hiperintens, kontrastlı sekansta heterojen kontrast geçişi şeklinde görünüm izlendi. Beyin MR venografide oksipitalde cilt altından serebral venöz sisteme uzanıp drene olan venöz malformasyon saptandı. Hastanın nöroradyolojik açıdan patolojik bir risk faktörü olması sebebiyle, ilk epileptik nöbeti olmasına rağmen hastaya antiepileptik tedavi olarak 1000 mg/gün levetirasetam başlandı.

Sonuç: Gelişimsel venöz anomaliler hemoraji, iskemik inme, epileptik nöbet, fokal nörolojik defisitlerle veya baş ağrısı ile klinik pratikte karşımıza çıkabilir. Nöroloji kliniklerinde genç yaş ilk epileptik nöbet olguları sıklıkla primer epileptik nöbetler olarak karşımıza çıkmaktadır. Ancak bu vakada olduğu gibi nadir görülen klinik tabloların da genç yaş hastalarda epileptik nöbet ile karşımıza çıkabileceği unutulmamalı ve yapılacak etiyolojik tetkikler buna göre planlanmalıdır.
Retrospective Analysis of the Oldest-Old Patients Who Applied to the Emergency Department and Their Differences from the Young-Old And Middle-Old
Authors: TOKER İbrahim , KILINÇ TOKER Ayşin , GÖKÇEK İrfan , BULBUL Emre , YILMAZ Gökhan , SİLCAN Mustafa , IRMAK Şaban , ALTUNTAŞ Mükerrem
Published: February 2023

Aim: Our study examined young, middle, and oldest-old patients who visited the emergency department (ED) and their differences.

Material and Methods: The research was executed retrospectively, utilizing the medical data of patients aged 65 and over who applied to the ED of a research hospital in Kayseri for the two years between January 1, 2020, and December 31, 2021. The patients were young-old, between 65 and 74 years old; aged 75 to 84 were middle-old, and those aged 85 and over were classified as oldest-old.

Results: 84415 (13.7%) older patients visited the ED during the study period. The patients’ median age was 74 years, IQRs (69- 80) and 53.9% (n=45466) were female. 53.4% of the patients were young-old, 33.4% middle-old, and 13.2% were oldest-old. 7.2% (n=6060) of the hospitalized patients were admitted to the intensive care unit, and 7.8% (n=1719) died. Among the first three reasons for admitting the patients to the ED, 20% (n=16874) had COVID-19, 14.4% (n=12131) had gastrointestinal symptoms, and 13.9% (n=11718) had circulatory system symptoms. Oldest-old patients were brought to the ED by ambulance more (38.4% vs. 50.9% vs. 63.2% p< 0.001), stayed longer in the ED (81 vs. 103 vs. 116 minutes, p
CUSTOMER CHURN PREDICTION ANALYSIS
Authors: Priya E Padma , S S Janashree , P Sivaganga
Published: February 2023

The Customers are the base of many successful businesses; thus, all the sectors are starting to understand how important it is to gain client satisfaction. The technical infrastructure has expanded quickly, changing how businesses operate. Due to growing business competition, the importance of marketing techniques, and customers' increasingly aware behaviour in recent years, leaving the organization is a crucial issue and it is one of the most crucial worries for most of the sectors. Different approaches must be developed by organizations to address the churn problems affecting the services they provide. To gain a deeper understanding of customer churn, this projectsummarizes churn prediction techniques. It also demonstrates that hybrid models, as opposed to single algorithms, provide the most accurate churn predictions, allowing telecom industries to better understand the needs of high- risk customers. Reduced client turnover is turning into a demand for service suppliers as a result of the potential impact that client neglect may wear business profitability. Prediction helps to search out users' World Health Organization area units doubtlessly to change from one organization to a different. The ever-rising churn rate in the medium could be a drawback. In lightweight of this, the present work makes use of a big-data platform and machine learning methodology. These medium firms are safeguarded with effective strategies for reducing the speed of churn because of machine learning algorithmic program techniques. Keywords: Churn, Machine Learning, Random Forest,telecommunication,
4G Wireless Networks
Authors:   Electronics & Communication department IIMT University Meerut, Mittal Vipin , Yadav Ajay Kumar
Published: February 2023

One such development is fourth generation networks. Also called future generation or Next Generation Networks. The introduction of 4G has widened the scope of mobile communication. Now mobile is not only a device used for talking but its more or less a portable computer that can serve different purposes. 4G offers higher data rates with seamless roaming. The mobile user can communicate without any disturbance while switching his coverage network. 4G is still passing through research and therefore there are some problems that need to be fixed in order to benefit the users from it fully. In this report we discuss various challenges 4G is facing and solutions to those problems are discussed. We propose our own way of improving QoS in 4G by using combination of mobility protocol SMIP and SIP Keywords: 4G Wireless Networks,
The impact of macroeconomic variables on foreign direct investment in Nigeria
Authors: Nwagu Kingsley
Published: February 2023

This study's main goal is to determine the effect that specific macroeconomic factors have on the amount of foreign direct investment (FDI) flowing into Nigeria. The ex post facto research design was adopted, and it used exchange rate, inflation rate, monetary policy rate (MPR), and gross domestic product growth (GDP) rate as the macroeconomic variables. The quantity of inflow between 1986 and 2020 was made up of FDI (dependent variable). Because the model variables were integrated in a mixed order of both level and first difference, the autoregressive distributed lag (ARDL) technique was used. The selected macroeconomic variables and FDI were bound by a long-run connection, according to the results of the ARDL bounds test for cointegration. The calculated short-run coefficients showed that GDP growth rate and monetary policy rate were the primary macroeconomic variables that considerably increased FDI inflow in Nigeria, whereas inflation and exchange rate were the major macroeconomic variables that significantly decreased FDI inflow. In the long term, the GDP growth rate and the exchange rate had a beneficial influence on FDI influx, whereas the monetary policy rate had a large negative effect. According to these empirical findings, it is advised that Nigeria's monetary authorities should support strong GDP growth, exchange rate stability, and efficient monetary policy rates in order to draw FDI into the country and create efficient foreign exchange policies that will attract foreign investors.
The Impact of Deregulation Trends on the Chinese Banks' Interest Margins
Authors: Qi Ming , Jiang Ying , Liu Xuan
Published: February 2023

In this paper, we examine the impact of deregulation trends and foreign bank entry on the net interest margins of China’s banking sector. By comparing the banks’ net interest margins before and after the banking liberalization, we investigate the impact of the financial deregulation and the presence of foreign banks on the profitability of Chinese banks. The results indicate that the entrance of foreign banks has strong negative effects on the profitability of domestic banks. The credit risk is the major factor to enhance the profitability of the Chinese domestic banks.
«Tres modos estéticos». Una conferencia olvidada de Valle-Inclán en Valladolid (1917)
Authors: Serrano Alonso Javier
Published: February 2023

Una de las carencias principales que a día de hoy tiene el estudio de Valle-Inclán es la escasez de textos sobre estética redactados por el autor gallego, que nos permitan conocer profundamente su pensamiento poético-artístico. Por ello, desde hace años, se ha hecho imprescindible la recuperación del corpus mediático o conjunto de escritos, manifestaciones, comentarios y cualquier declaración que nos facilite su reconstrucción. La reintegración al corpus literario del autor de artículos, cartas, entrevistas, discursos y otros materiales olvidados se ha convertido en una actividad fundamental en los estudios valleinclanistas. Este es el caso del rescate de una conferencia de Valle-Inclán totalmente desconocida: «Tres modos estéticos», pronunciada en 1917 en Valladolid, valiosa reflexión sobre algunos de sus principios artísticos más firmes y estables, reflejo de su gran tratado simbolista La lámpara maravillosa.
José Peón del Valle, entre el romanticismo y el modernismo
Authors: Pascual Gay Juan
Published: February 2023

Este artículo quiere dar cuenta de ciertos avatares de la vida de José Peón del Valle, pero limita su interés literario a su primer poemario, publicado en 1886, y sus colaboraciones en la Revista Azul, entre 1894 y 1896; dos momentos que muestran el cambio de estética del autor plenamente asumido en el libro de 1903, Poemas y versos, pero que no se contempla en estas páginas puesto que excedería el espacio ajustado para su publicación.
Recorridos americanos de Don Quijote
Authors: Canavaggio Jean
Published: February 2023

Aparecido en Valladolid en los últimos días del año 1604, el Quijote no tardó en cruzar el Atlántico. Sin embargo, tuvo que esperar casi dos siglos para marcar el Nuevo Mundo con su impronta. Este estudio examina su proyección en las letras hispanoamericanas, especialmente en las obras de Jorge Luis Borges, García Márquez y Carlos Fuentes. Al mismo tiempo, se propone mostrar cómo, en Estados Unidos, Herman Melville y Mark Twain meditaron su ejemplo, seguidos más tarde por William Faulkner y Thomas Pynchon.
Pesantren Between Learning and Moral Agents of Community Character Formation
Authors: Umam M. Zainul
Published: February 2023

This research is motivated by the phenomenon that occurs in society, namely (1) the younger generation who have poor character in terms of ethics, (2) the lack of optimal educational institutions in instilling values, ideals and motivations that will encourage the younger generation to have a good personality, (3) Lack of knowledge of parents on how to shape the character of the child in order to have a good personality in terms of ethics. Pondok Pesantren Raudlatul Muta'allimin Jagalan 62 Langgardalem Kudus has a curriculum that prioritizes character education in the learning process. The research method used is a descriptive method with a qualitative approach to further explore the core of research problems with data collection techniques using interviews with managers, teaching and students as objects of education. The theories referenced in this study include the theory of character education, the theory of management of educational institutions pondok pesantren, and the concept of education outside the school
Application of the LCM Method in Randomizing Colloid and Electrolyte Questions for Basic Chemistry Subjects at SMP N 45 Medan Based on Android
Authors: Rizal Rahmat , Tambunan Frinto , Haryanto Edy Victor , Sipahutar Lahmudin , Sartika Ika
Published: February 2023

The learning process that is only guided by the teacher and textbooks greatly affects the learning outcomes of students because not all students are involved in the learning process. In providing learning materials, there are some students who will feel bored and bored in receiving teacher explanations. The problems that occur include the lack of interest in learning and the attraction of students to learning materials that are considered difficult, difficult to understand, and there are certain terms in the material. the. And from the previous mapping, it was found that some students who were less able to accept learning were still in one direction, namely by learning from teacher to student. With the application of technology that will give a touch to students through an application that is embedded in a system on Android mobile or often called a smart phone. So that the increase in learning can be assessed as effective and efficient through a Smart Phone. Apart from that, this system also provides convenience in addition to learning students are also given a test or hone their skills related to the material they understand from a topic. Where practice questions are randomized systematically using the Linear Congruent Method (LCM)
Prospects of Implementing Green Economy Policies for Sustainable Development in Bekasi Regency
Authors: Rahmadi Heksawan , Widyasari Sri Susanti
Published: February 2023

The issue of sustainable development arises along with various environmental impacts due to irresponsible industrial and economic activities, such as river pollution, global warming and emission gaps. Bekasi Regency Regency is a buffer zone for the capital city of Jakarta and is included in the Greater Jakarta area. Initially, Bekasi Regency was a rural and rice-producing area, but with massive development and industrialization, Bekasi Regency experienced a shift in land use. Another situation is the damage to the quality of groundwater, rivers and air due to factory waste. The objective of this research is to describe and analyze the prospect of implementing a green economy in Bekasi Regency so that environmental-based development recommendations can be produced
ALTITUDINAL CHANGES IN TEMPERATE FORESTS FROM CARPATHIAN MOUNTAINS
Authors: Zaharioiu Anca Maria , Ionete Roxana Elena , Sandru Claudia , Constantinescu Marius , Botoran Oana Romina
Published: February 2023

This study investigated changes in carbon (C) and nitrogen (N) concentrations in the three components of the forest ecosystem (leaves, bark and soil) along an altitudinal gradient in the temperate forests of Romania. The properties and processes within the forest ecosystem are influenced by altitude. The leaves, litter and soil are important in the good development of the ecosystem and in the cycle of the elements. Plants extract the nutrients necessary for life and growth from the soil in which they carry out their entire activity. With the help of litter, the soil is supplied with nutrients useful for plants. The soil can be influenced by pH, being a physical factor, and in the forests of Romania it decreases with altitude, becoming acidic. In this paper, studies were performed to investigate the chemical components in the soil-water-plant chain, which highlights the importance of stoichiometric variation of nutrients in plant organs and their relationships with other components of the forest ecosystem.
ANTHROPOGENIC WORKS INFLUENCE CONCERNING THE EROSION PROCESS IN THE BULGARIAN BLATO RIVER WATERSHED
Authors: Chilikova-Lubomirova Mila , Belev Georgi , Nikolova Elena
Published: February 2023

The Blato River watershed was determined as especially vulnerable to flood hazards zone regarding the developed Bulgarian Flood Risk Management Plans. With regard to the climate change the number of such hazards increases. To prevent and mitigate the consequences various measures are applied in practice. Some of them are connected to the implementation of already existing engineering solutions. But in case of emergency some untypical temporary solutions are also introduced. In line with the detected severe climate pressure the need of new or additional flood mitigation measures increases. This requires a properly consideration of the state of the Blato River watershed, accounting the existing structures, their current state and potential for further use considering floods and climate change. As a step in this direction this material is briefly presenting the results of a study observing the anthropogenic works influence concerning the water erosion processes of the Blato River watershed. The examination is provided considering the erosion vulnerability concerning the detected flood processes. For the purpose in a geographic information system mapping environment, it is provided an analysis considering the Blato River watershed specifics, accounting the existing flood mitigation anthropogenic works. Obtained results clarify the effect of such implementation in case of floods and can be a good starting point in the process of future additional floods mitigation measures investigation.
APPLICATION OF STABILIZING AGENTS IN CONTAMINATED SOILS OF OLD MINING AREAS
Authors: Farago Tomas , Cermak Patrik
Published: February 2023

Soil pollution by potentially toxic elements (As, Sb, Cu, Zn, Pb) near the mining areas has become a serious environmental problem. These risk elements can be released into the environment, causing a risk to human health. Stabilized pollution in various materials may constitute an additional risk in the long term. Organic acids play an important role in mobilizing contaminants. In the present work, various stabilizing agents (iron nanoparticles � nanoscale zerovalent iron (nZVI), amorphous manganese oxide (AMO), biochar (BC), natural and synthetic zeolites) were investigated in terms of their stabilizing potential under simulated rhizosphere conditions and their consequences in the mineral composition of samples. One of the aims of this work was to understand the reactivity of potential sorbents in contaminated soils of the abandoned Sb-deposit and subsequent mobility of arsenic and antimony by one-step pot experiments using citric and acetic acid. Another goal of this work was to determine the effectiveness of Aspergillus niger and Neosartorya fischeri strains producing organic acids (citric acid, oxalic acid, acetic acid) in bioleaching and bioaccumulation of Cu, Zn and Pb from mining waste from tailings pond.
ASSESSMENT OF NITROGEN POLLUTION OF THE ENVIRONMENT IN BULGARIA AND NUMERICAL SIMULATIONS FOR ITS MITIGATION
Authors: Nitcheva Olga , Vatralova Albena
Published: February 2023

Nitrogen pollution contributes to climate change, acid rain and eutrophication. The present study evaluates the degree of nitrogen contamination of air, surface and ground waters in Bulgaria with reference to the 2021 EU Action Plan 'Towards Zero Pollution for Air, Water and Soil' as well as the relevant international and national regulations in the field. The analysis uses data from the Bulgarian Ministry of Environment and Water, Ministry of Agriculture, the European Emission Database for Global Atmospheric Research � EDGAR, and FAO. The main sources of nitrogen pollution are considered with special attention to the mineral fertilizers applied to soils in agriculture. Numerical experiments implemented with the mathematical model WAVE identified rational fertilization rates, achieving permissible nitrogen pollution of the atmosphere and groundwater at good crop yields. The methodology can be applied for recommendation of good agricultural practices in order to preserve the ecological balance and optimize the economic costs of mineral fertilizers, especially in the current situation of their prices sharp increase.
COMPARATIVE CHARACTERISTIC OF MULTI-ENVIRONMENTAL CARCINOGEIC RISK FOR ADOLESCENT HEALTH
Authors: Valeeva Emiliya , Stepanova Natalya , Ismagilova Gulgena , Sinitsyna Oksana , Skvortsova Galiya
Published: February 2023

The main aim of the work is a comparative characteristic of carcinogenic risk for the health of the adolescent and adult population from exposure to chemical contaminants on multi-environmental ingestion of chemical substances (drinking water, soil, atmospheric air, foods). A high level of total carcinogenic individual risk in the city territories under study is identified in adolescents and adults in the 2nd zone (0.00426 and 0.00298). The value of total carcinogenic risk (TCR) in the territories under study on complex multi-environmental ingestion of CSs (chemical substances) in the adolescent and the adult population corresponds to the alarming risk level (1.0 � 10-3 � 1.1 � 10-4). Chloroform and lead make the major contribution to the value of carcinogenic risk in all zones. Calculation of the carcinogenic risk levels for all carcinogenic substances was made with application of standard values and regional exposure factors at the �� and the 95th Perc levels. Assessment of carcinogenic risk was carried out for 3 (three) substances contained in drinking water: cadmium, lead, chloroform. The total carcinogenic risk for adolescents on exposure to carcinogens contained in water REFMe and REF95 Perc was allowable in all zones. Differences in the value of carcinogenic risk levels made 0.107 � 0.227 at EF��/SEF and 2.0 at EF 95 ��rc/SEF. The major contribution to the value of carcinogenic risk was made by chloroform and lead in all zones. We can assume that in majority of cases the main contribution is made by chloroform in the 3rd district and metals- in the 4thone. The highest carcinogenic risk level is registered at the 95th �erc level for the adolescent health in all zones under study. Differences in regional and standard values of EF have impact on the population health risk levels. Analysis of the risk levels with application of local factors and age differences in exposure to chemicals ingested perorally with drinking water showed that the use of standard values in the methodology of risk assessment resulted in underestimation of actual carcinogenic risk for adolescents.
COMPOSTING OF BIOSOLIDS IN ROMANIA � A CASE STUDY
Authors: Cocarta Diana Mariana , Feodorov Cristina (Soricu) , Pasvantu Irina , Gogoncea Anca Cristina
Published: February 2023

Globally, the environment is the result of the interdependence between natural elements - water, air, soil, living things, and elements from human activity. Environmental pollution can be generally defined as the negative result of the domestic or industrial activity of any living thing that generates pollutants in the atmosphere or waste that reaches the ground or water. Numerous causes of pollution have made environmental protection one of the most important and essential problems in the world, pollution, and lack of protection measures affect people's quality of life. In this regard, the National Waste Management Strategy has been developed in Romania in 2019. This proposes a framework of measures to ensure the transition from the current development model based on production and consumption to a model based on the prevention of waste generation and the use of raw materials in industry, recovery, and recycling, thus ensuring the preservation of national natural resources. In this context, the current paper illustrates the achieved results from the experimental activities carried out using a closed composting system, that is a mobile one. The input materials in the composting process were sludge from a municipal wastewater treatment plant (26%), market waste (vegetables and fruits - 18%), and wood chips (56%). The results showed that, for the analyzed heavy metals, the concentrations in compost do not exceed the limit values for the second category of compost according to the Romanian regulation in force (Law 181/2020 - on the management of non-hazardous compostable waste). Consequently, the obtained compost from a mixture of sludge from the wastewater treatment plant, waste from the market (vegetables-fruits), and wood chips can be used on agricultural land.
ECOTOXICOLOGICAL CHARACTERISTICS OF THE GROUND SAMPLES OBTAINED FROM URBAN GREEN ZONES SITUATED IN KAZAN (RUSSIA)
Authors: Kamalova A. , Gordeev A. , Galitskaya P. , Selivanovskaya S.
Published: February 2023

Public gardens and park zones are an important and widely visited component of urban spaces worldwide, however they can be polluted and even dangerous for humans and animals visiting them. The simplest way to screen the level of pollution of those green zones is to assess their ecological toxicity.
In the present study, to assess the ecotoxicity of soil and ground samples obtained in 15 parks and public gardens in the city of Kazan (Russia) with 1 Mio citizens were investigated. Two elutriate assays with Ceriodaphnia affinis and Chlorella vulgaris and one contact assay with Bacillus pumilus were used in order to estimate the ecotoxicity of the samples.
It was revealed that B. pumilus was less sensitive to the components present in ground samples from the green zones. Thus, the lowest toxicity of the undiluted sample was estimated to be 3.33% (sample Gorkiy Central Park of Culture and Leisure) and the highest � 27% (�Dubovyj kordon� public garden).
For C. affinis, we managed to assess the toxicity without dilution step for 7 samples out of 15. For the other 8 samples, the additional dilution series was prepared, and the LID10 index was calculated. Thus, the LID10 index these samples for C.affinis ranged from 34 to 40, for Chl. vulgaris varied from 13 to 50.
It should be noted that samples with the highest toxicity (revealed for at least one test object) were obtained from the parks that visually looked less clean and organized.
EFFECT OF ALCOHOL-BASED PRESERVATIVES ON QUALITY OF BEETLE LARVAL SPECIMENS
Authors: Novak Martin , Jakubec Pavel , Mahlerova Karolina , Montoya-Molina Santiago , Qubaiova Jarin
Published: February 2023

The standard procedure for fluid preservation of insects consists of two steps. First, the specimen is killed and prepared in a fixative fluid and then transferred to a storage fluid. Recommendations for using specific chemicals or mixtures differ depending on the size and anatomy of the animal and vary among the authors. However, controlled comparative studies are often missing. The ideal method should preserve the specimen�s morphology as well as its genetic information. We have investigated the effect of 12 combinations of commonly used methods based on ethanol, using four types of fixatives (Hot Water Kill (HWK) for 5 minutes/6 hours; absolute ethanol cold/boiling) and three types of storage fluids (70 %; 80 %; and absolute ethanol) after eight months of storage. The effects were tested on mature larvae of a forensically relevant beetle species. We have evaluated the effectivity in terms of color preservation, shape of the specimen, and quality of genetic material. The color was best preserved by HWK for 5 min with subsequent storage in absolute ethanol, and the worst results were achieved by cold absolute ethanol with subsequent storage in 70 % ethanol. The fixative type has a major effect on the shape compared to the storage fluid. The effect of treatments on shape appears to be inverse to the effect on color preservation. The genetic material was preserved equally well in all treatments. The advantages and disadvantages of specific treatments and the recommendation of the best method are discussed.