bluuebunny/crossref_metadata_2025 huggingface dataset:
Nghiên cứu khả năng ức chế nảy mầm và tăng trưởng của các cao chiết từ cây trâm ổi (Lantana camara L.)
Authors: Võ Ngọc Nguyên , Trần Ngọc Quý , Trần Thanh Mến
Published: October 2022

Trâm ổi (Lantana camara L.) là loài thực vật hoang dại được cho là có khả năng ức chế các loài thực vật lân cận trong cùng hệ sinh thái bằng cơ chế allelopathy. Nghiên cứu này được thực hiện nhằm đánh giá khả năng ức chế nảy mầm và tăng trưởng của cao chiết từ các bộ phận của cây trâm ổi trên đối tượng là hạt cải củ (Raphanus sativus L). Kết quả khảo sát cho thấy, các cao chiết từ cây trâm ổi có chứa các hợp chất alkaloid, flavonoid, phenolic, saponin và coumarin. Hàm lượng phenolic và flavonoid được xác định có trong cao chiết từ hoa cao hơn các bộ phận khác, lần lượt là 239,13 mg GAE/g và 114,84 mg QE/g cao chiết. Khả năng ức chế nảy mầm và sự tăng trưởng của các cao chiết trâm ổi đối với hạt cải củ tăng dần theo nồng độ khảo sát và bộ phận hoa cho kết quả ức chế cao nhất. Bên cạnh đó, kết quả nghiên cứu cho thấy cao chiết trâm ổi có tác động đến sự phân chia tế bào trong quá trình nguyên phân, tăng độ dày vách tế bào...
Thử nghiệm hoạt tính sinh học của hai hợp chất flavonol glucoside phân lập được từ nhị hoa mai vàng
Authors: Huỳnh Phương Vinh , Quách Kim Huỳnh Hoa , Tôn Nữ Liên Hương
Published: October 2022

Từ cao chiết dichloromethane của nhị hoa mai vàng, Ochna integerrima (Lour.) Merr. đã phân lập được hai hợp chất là 6˗γ,γ˗dimethylallylkaempferol 7˗O˗β˗ᴅ˗glucopyranoside (1) và (2S,3S) 4’-methoxy-6˗γ,γ˗dimethylallyldihydro kaempferol 7˗O˗β˗ᴅ˗glucopyranoside (2). Cấu trúc của hai hợp chất này được xác định bằng các phương pháp phổ nghiệm hiện đại như 1H-NMR, 13C-NMR, DEPT, HMBC, HSQC và so sánh với tài liệu đã được công bố trước đó. Hợp chất (2) thể hiện hoạt tính ức chế trên cả hai dòng tế bào ung thư vú MCF7 và ung thư phổi A549 với giá trị IC50 lần lượt là 152,00±8,5 μg/mL và 245,13±12,6 μg/mL. Hơn nữa, cả hai hợp chất đều thể hiện hoạt tính kháng khuẩn Gram (+), Staphylococus aureus với giá trị IC50 của hợp chất (1) là 61,47 0,67 µg/mL và của hợp chất (2) là 194,6±5,38 μg/mL.
Phân lập và tuyển chọn các dòng vi khuẩn có khả năng phân giải tinh bột
Authors: Trần Thị Giang , Trịnh Hữu Nghĩa , Nguyễn Thị Huỳnh Nghi , Võ Dương Lan Anh , Đỗ Tấn Khang
Published: October 2022

Nghiên cứu được thực hiện nhằm tuyển chọn các dòng vi khuẩn có năng phân giải tinh bột. Các mẫu tinh bột nấu chín từ gạo ST25 được đặt ở nhiều vị trí khác nhau ở thành phố Cần Thơ để thu hút vi khuẩn. Sau 3 ngày, mẫu được phân lập bằng môi trường Amylolytic Bacteria. Các dòng vi khuẩn được định tính khả năng phân giải tinh bột bằng phương pháp khuếch tán đĩa thạch và được định lượng bằng phương pháp dinitrosalicylic acid. Kết quả phân lập được 20 dòng có khả năng phân giải tinh bột gồm 10 dòng có tế bào hình que, 10 dòng có tế bào bình cầu và tất cả đều Gram dương. Kết quả ghi nhận dòng vi khuẩn KTXA1, VB-34 và VB-42 có khả năng phân giải tinh bột cao, với đường kính phân giải từ 14,33 mm – 18,33 mm. Dòng KTXA1 có khả năng phân giải cao nhất với hàm lượng đường khử từ 2,9 đến 3,07 mg/mL tại thời điểm 24 đến 96 giờ. Kết quả định danh dòng KTXA1 có độ tương đồng với vi khuẩn Bacillus sp. dựa vào trình tự gene 16S rRNA.
Phát triển năng lực giải quyết vấn đề của học sinh phổ thông định hướng giáo dục stem thông qua chủ đề lập trình với robot Vex IQ
Authors: Dương Bích Thảo , Phạm Minh Khánh , Lê Thị Yến Nhi , Trần Thiên Kim
Published: October 2022

Bài viết đề cập nghiên cứu dạy học theo định hướng giáo dục STEM với mô hình dạy học 6E nhằm phát triển năng lực giải quyết vấn đề trong tình huống thực tiễn cho học sinh lớp 11 bằng cách đưa robot vào việc dạy học lập trình ngôn ngữ Python. Trong bài báo, quá trình giáo viên vận dụng quy trình dạy học 6E được theo dõi và quy trình này được thực nghiệm 6 giai đoạn trong 7 tuần đối với 24 em học sinh của 4 lớp khối 11 của trường Trung học phổ thông Thực hành Sư phạm, Đại học Cần Thơ. Trong đó, 12 học sinh chỉ được học lý thuyết như thực tế triển khai thông thường tại các trường phổ thông (nhóm đối chứng) và 12 học sinh được dạy học cả lý thuyết và thực hành robot theo quy trình thiết kế mô hình, lắp ráp robot ảo, lập trình ngôn ngữ Python và trình diễn robot Vex Iq ngoài thực tế (nhóm thực nghiệm). Kết quả cho thấy nhóm thực nghiệm có năng lực giải quyết vấn đề của học sinh, năng lực này phát triển đáng kể...
Xây dựng môi trường học tập tương tác trong dạy đọc hiểu văn bản văn học cho học sinh thông qua mạng xã hội học tập Edmodo
Authors: Trịnh Thị Hương , Nguyễn Thị Hồng Nam , Phạm Thị Thanh Lan
Published: October 2022

Ngày nay, việc sử dụng các ứng dụng trên nền tảng trực tuyến vào dạy học diễn ra khá phổ biến trên thế giới cũng như ở Việt Nam. Trong đó, mạng xã hội học tập Edmodo được nghiên cứu trong dạy đọc, viết, nghe, nói như là ngôn ngữ thứ 2. Trong nghiên cứu này, việc xây dựng môi trường học tập tương tác trong dạy kĩ năng đọc hiểu văn bản văn học cho học sinh được trình bày trên nền tảng mạng xã hội học tập Edmodo. Các tính năng của Edmodo được khai thác để tổ chức cho học sinh (HS) tương tác bao gồm Post (đăng tin), Assigment (giao bài tập), Group (chia nhóm) và Folder (lưu trữ tài nguyên). Bốn mươi lăm học sinh lớp 10 tại trường trung học phổ thông Nguyễn Trãi, huyện Giồng Trôm, tỉnh Bến Tre đã tham gia tương tác trên lớp học Edmodo trong quá trình học đọc hiểu văn bản văn học. Kết quả thu được từ giao diện lớp học cho thấy, việc tổ chức cho HS tương tác trao đổi, chia sẻ trên Edmodo đã tạo môi trường học tập chia sẻ...
Đánh giá của các bên liên quan về chương trình đào tạo ngành sư phạm sinh học (K40-K44) ở Trường Đại học Cần Thơ
Authors: Võ Thị Thanh Phương , Nguyễn Trọng Hồng Phúc , Đinh Minh Quang , Đặng Minh Quân
Published: October 2022

Nghiên cứu này cung cấp kết quả khảo sát ý kiến đánh giá của các bên liên quan về chương trình đào tạo (CTĐT) ngành Sư phạm Sinh học (SPSH) giai đoạn 2014-2018 (K40-K44) ở Trường Đại học Cần Thơ. Các bên liên quan bao gồm sinh viên, cựu sinh viên, giảng viên, nhân viên và nhà tuyển dụng (n = 162). Phiếu điều tra được thiết kế tương ứng với từng đối tượng dựa trên 11 tiêu chuẩn đánh giá chất lượng của CTĐT trình độ đại học do Bộ Giáo dục và Đào tạo ban hành. Hình thức phỏng vấn nửa cấu trúc được triển khai để thu thập ý kiến phân tích và đánh giá về CTĐT. Kết quả nghiên cứu cho thấy các bên liên quan đã đánh giá mức độ phù hợp/ đáp ứng/ hài lòng về CTĐT của ngành SPSH ở mức tốt (3,41 ≤ M < 4,21) về mục tiêu và chuẩn đầu ra; cấu trúc nội dung của chương trình đào tạo; phương pháp tiếp cận trong dạy và học; hoạt động đánh giá kết quả học tập của sinh viên; chất lượng đội ngũ giảng viên và nhân viên;...
Tác động của số hóa doanh nghiệp lên khả năng tham gia vào chuỗi cung ứng toàn cầu: Bằng chứng từ các doanh nghiệp sản xuất tại Việt Nam
Authors: Nguyễn Thu Giang , Lê Đức Đàm
Published: October 2022

Mục đích nghiên cứu của bài viết là phân tích ảnh hưởng của số hóa lên tới khả năng tham gia chuỗi giá trị toàn cầu của doanh nghiệp ngành sản xuất tại Việt Nam. Số liệu trong nghiên cứu được chiết ra từ bảng Điều tra doanh nghiệp (AES) do Tổng cục Thống kê thu nhập hàng năm từ năm 2012 đến 2018 kết hợp với dữ liệu Điều tra năng lực công nghệ của doanh nghiệp ngành sản xuất (TCS). Kết quả cho thấy số hóa làm tăng khả năng doanh nghiệp ngành này tham gia vào chuỗi giá trị toàn cầu. Hơn nữa, các doanh nghiệp thuộc nhóm ngành công nghệ thấp lại có khả năng chuyển hóa lợi ích công nghệ số làm động lực tham gia vào chuỗi tốt hơn hẳn so với doanh nghiệp ở ngành công nghệ cao.
Stories of HIV activists during COVID-19 in the UK
Authors: Ledin Chase , Fakoya Olujoke , Garcia-Iglesias Jaime
Published: October 2022

Stories of HIV Activists during COVID-19 in the UK examines and interprets the experiences of HIV activists during the COVID-19 pandemic. It relies on qualitative data obtained through a UK-ICN BBSRC funded grant. We draw from these stories to start a conversation about how activism translates from one health crisis (HIV/AIDS) to another (COVID-19). These activist stories tell us about how activist individuals and organisations responded to COVID-19, but they also provide insight for future pandemic contexts. The UK and many other countries across the world face a variety of new pandemic threats, including monkeypox and Ebola, which demand new forms of health intervention and strategies to mobilise individuals and communities. We use these stories to illuminate the resilience of some activists in the face of crisis and to articulate ways in which health activism can be adapted and remobilised to respond to new health crises.
Prácticas de ecología de campo
Authors: Casas Andreu Gustavo ,   Instituto de Bilogía-UNAM
Published: October 2022

El Manual de prácticas de ecología de campo es una herramienta fundamental en la formación de los futuros ecólogos ya que, además de retomar aspectos relevantes de los distintos niveles de la ecología, ayuda a desarrollar habilidades para tomar datos en campo y dar respuesta a preguntas de investigación. Sólo saliendo al campo y practicando las técnicas básicas los alumnos desarrollarán los hábitos y las habilidades necesarias para la colecta de datos y el diseño de experimentos naturales. No hay mejor forma de enseñar la ecología de campo que acudir al propio campo y poner a prueba hipótesis, obtener datos, hacer notas, llenar el diario de campo, recopilar información y repetir el proceso las veces que sea necesario. Ello permite generar la experiencia suficiente dentro de una de las actividades fundamentales del método científico: la generación de datos.
Microbioma oral: variabilidad entre regiones y poblaciones
Authors: Gómez García Ana Pamela , López Vidal Yolanda , Aguirre García María Magdalena
Published: October 2022

Abstract According to the World Health Organization (WHO), 3.58 billion people were affected by oral disorders, where caries, followed by periodontal disease are the most frequent and the main causes of damage to pulp tissue and loss of dental organs. In Mexico, the Epidemiological Surveillance System for Oral Pathologies (SIVEPAB) reported that 53% of the population is affected by some degree of periodontal disease, while on average caries affects 93.3% of the population between 20 and 85 years old and older, as well as about 50.0% of children and adolescents, so both conditions are considered an important public health problem in this country. Additionally, the human oral microbiome is known to be associated with oral health and disease. An imbalance in the oral microbiome (dysbiosis) can result in the proliferation of Streptococcus mutans and Porphyromonas gingivalis, linked to caries and periodontal disease. The latter two conditions, the most prevalent oral diseases worldwide, are the main causes of damage to pulp tissue and loss of dental organs. In the presence of these pathologies, constant exposure to the corresponding inflammatory chronic infection could lead to the translocation of oral bacteria to other parts of the body, where they may contribute to the development and/or exacerbation of systemic inflammation and trigger disease. Since age, diet, genetics, and geographical location are known to influence the variability of the human microbiome, it is important to analyze differences in the oral microbiome between distinct populations. Up to now, little attention has been given to this task. The current review carried out for articles published between 2010 and 2020 and describes the human oral microbiome in populations of Asia, Africa, America and Europa, to explore whether geographical differences have an impact on the variability of the human oral microbiome. Keywords: Human oral microbiome; oral microbiota; geography; health and sickness.
Introduction to the Tafsir of Tabari. Translation from Arabic and Commentary. Part Three: the Names of the Qur’ān and the Concepts of Surah and Ayah
Authors: Frolov D. V. , Zaripov I. A.
Published: October 2022

This publication is the fi nal part of the commented translation into Russian of the Introduction (muqaddimаh) to the tafsir “Jami’ al-bayan fi  ta’wil al- Qur’ān” (The Comprehensive Exposition of the interpretation of the Qur’ān) by Muhammad ibn Jarir al-Tabari (839–923). This part contains sections devoted to the names of the Qur’ān, the concepts of surah and ayah. The fi rst of them contains the four main names of the holy scripture of Islam —  qur’ān, furqān, kitāb and dhikr, their etymology is defi ned on the basis of pre-Islamic poetry and statements of early Muslim authorities. The following section describes the classifi cation of suras into groups — s even long (sab‘ ṭiwāl), of hundred ayahs (mi’ūn), repeated (mathānī) and divided into parts (mufaṣṣal). The last section talks about the origin of the concepts of surah and ayah.
«PROFESSORS» – KATUKOV’S MEN IN THE BATTLES OF OREL, MTSENSK AND ON THE OUTSKIRTS OF MOSCOW
Authors:   Central Russian Institute of Management, Branch of RANEPA, NIKITIN E.V.
Published: October 2022

The purpose of the article is to determine the role of Katukov’s men in the battles of Orel, Mtsensk and on the outskirts of Moscow. Consistency, historicism and objectivity are the main principles of the research. In addition, methods of analysis, synthesis, retrospective and comparative historical, content analysis are used; the activity of Katukov’s 4th tank brigade is analyzed on the base of archival materials, military historical works, the war and post-war years press, veteran guards’ personal memories. Much attention is given to personal characters of the Katukov’s men. The author emphasizes such characters as bossy maturity, tactical skill and per-sonal bravery. They showed courage and heroism on the battlefields. They used such tactics as to deliver deterrent strikes against the enemy with small forces, to act from ambushes, to create false positions, often changing the lines of defense, to inflict flank attacks on the enemy, etc. Their military prowess brought novelty to tank strategies and contributed to the task achievement in conditions of superiority of enemy forces.
THE STATE OF PRIMARY SCHOOLS OF THE SPIRITUAL DEPARTMENT OF THE RUSSIAN PROVINCE IN THE SECOND HALF OF THE 19TH CENTURY (BASED ON THE MATERIALS OF THE YAROSLAVL DIOCESE)
Authors:   P.G. Demidov Yaroslavl State University, IERUSALIMSKAYA S.Y. , IERUSALIMSKIY Y.Y. ,   P.G. Demidov Yaroslavl State University
Published: October 2022

The article analyzes the socio-cultural activities of the Yaroslavl Diocese of the Russian Orthodox Church on the basis of the analysis of legislative, clerical and statistical materials, periodicals, as well as journalism on the example of the functioning of the primary school system subordinate to this diocese. The chronological scope of the article is limited to 1861-1900, i.e. the time defined by a number of researchers as post–reform. Constant comparisons of local data with general imperial data are given, which makes it possible to identify all-Russian patterns and local specifics. The role of primary schools of the spiritual department in the development of primary education of the Yaroslavl province is determined. The article gives a classification of the types of primary schools: parochial schools and literacy schools. The analysis of changes in the dynamics of the number of parochial schools from the 60s - 90s of the XIX century, from a decrease to a significant increase at the end of the century, is given. The problems in the development of the primary school of the spiritual department (insufficient methodological training of teachers, weak material base, etc.) and positive aspects (increase in the number of literates, expansion of the school network, etc.) are shown. The role of the Russian Orthodox Church in the development of primary schools is revealed by the example of the activities of the Yaroslavl diocese. The work of special bodies of the diocese, such as the Yaroslavl Diocesan School Council and its county branches, to monitor the formation of primary education and assistance in the development of primary schools in the province was noted. (The study was supported by a grant from the Russian Science Foundation №22-28-01231, https://rscf.ru/project/22-28-01231/).
Divergent synthesis and antitumour activity of novel conformationally constrained (−)-muricatacin analogues
Authors: Stanisavljevic Sladjana , Sreco-Zelenovic Bojana , Popsavin Mirjana , Rodic Marko , Popsavin Velimir , Kojic Vesna
Published: October 2022

Four novel conformationally restricted (?)-muricatacin analogues, bearing a methoxy group at the C-5 position and with an alkoxymethyl group ?s the C-7 side chain, have been synthesised and their in vitro antiproliferative activity was evaluated against a panel of seven human tumour cell lines, as well as a single normal cell line. All analogues (9?12) showed diverse antiproliferative effects against all tested human malignant cell lines, but were devoid of any significant cytotoxicity towards the normal foetal lung fibroblasts (MRC-5). A structure?activity relationship study reveals that the introduction of tetrahydrofuran ring, the replacement of C-8 methylene group in the side chain of muricatacin analogues with the O-8 ether functionality, as well as the length of side chain may be beneficial for the antiproliferative effects of these lactones. All novel analogues were more potent than lead compound, (?)-muricatacin, against HL-60 cell line.
Is Sophistication Always Better? Can Perceived Data Analytic Tool Sophistication Lead to Biased Judgments?
Authors: Koreff Jared , Perreault Stephen
Published: October 2022

The rise of technology-enabled data analytic tools creates opportunities for firms to improve audit quality related to complex estimates. To combat auditors’ resistance to using technology-enabled tools, firms may promote the sophistication of such tools to their audit staff. However, there is a paucity of research that has examined how auditors’ perceived sophistication of an analytic tool impacts judgments about audit evidence. We conduct an experiment and find that, holding all other information constant, the preferences of an audit supervisor interact with the perceived sophistication of an analytic tool to jointly impact auditors’ anticipated evaluation from a supervisor and, in turn, their evidence assessment decisions when auditing a complex estimate. As such, the promotion of tool sophistication by audit firms can significantly affect the audit of complex estimates to a greater degree than what would be expected. Implications for audit theory and practice are discussed.

JEL Classifications: M41; M42.
Research progress on heteromorphic structure parts fabricated by additive manufacturing based on inside-laser coaxial powder feeding
Authors: Zhao Yuwei , Li Jiaqiang , Zhu Gangxian , Shi Shihong , Fu Geyan
Published: October 2022

Inside-laser material feeding laser cladding deposition (IMF-LCD) is a directed energy deposition technology featuring “hollow beam, annular spot, centered powder, and coaxial powder feeding.” IMF-LCD offers distinct advantages over traditional outside laser material feeding laser cladding deposition (OMF-LCD), such as a good laser-powder coupling effect, high powder utilization, high forming flexibility, uniform thermal field distribution in molten pools, and excellent forming surface quality. IMF-LCD would significantly improve forming efficiency and surface quality while it was applied to rapid direct manufacturing and repair of complex metallic parts compared to OMF-LCD. In this manuscript, the working principle of IMF-LCD technology is briefly introduced. Mostly, the research progress on heteromorphic structure parts fabricated by IMF-LCD was summarized, focusing on layered design, posture change, forming strategy optimization, and process parameter adjustment. The heteromorphic structure included a twisted thin-walled structure, variant height/width structure, overhanging structure, and closed structure. Based on the excellent characteristics of this technology, the exploration of high forming quality heteromorphic structural parts is carried out by changing the process parameters and forming processes such as the variable attitude stacking method, the conformal discrete layering method and the normal layering method, and the surface roughness is as low as 1.323 μm, the dimensional accuracy is as high as 1.6%. Simultaneously, the powder utilization rate of IMF-LCD reached 60%–80% on average, in accordance with the advantages of the laser-powder coupling effect. Finally, the remarkable research and application of IMF-LCD technology in high flexibility, high precision, high surface quality, and high material utilization would further promote the development of additive manufacturing with higher performance, higher quality, and lower cost in the future.
Laser specific energy consumption: How do laser systems compare to other manufacturing processes?
Authors: Jones Lewis C. R. , Goffin Nicholas , Ouyang Jinglei , Mirhossein Nazanin , Xiong Jiaji , Li Yufeng , Li Lin , Tyrer John , Liu Zhu , Woolley Elliot , He Yan , Mi Gaoyang , Mativenga Paul
Published: October 2022

Laser material interactions are routinely praised for their selective processing and high processing rates. However, this does not guarantee that the total manufacturing system has a low energy intensity compared to conventional manufacturing processes. This paper presents the results of a collaborative UK and China research project to improve the comprehension of the total energy consumption and carbon emissions for laser-based manufacturing. A range of individual laser cutting, welding, and cleaning processes were studied to assess their energy efficiency, including the laser and its ancillary subsystems (e.g., cooling and extraction). The project developed a systematic analysis method, adapted from BS ISO 14955-1:2017, which incorporated time and subsystem level studies to quantify all energy consumption components of a laser system. Previous research has identified that the laser system's most significant contributor to the total energy consumption are the auxiliary or supporting subsystems, not the laser emission. This identified that using only the absorbed radiation to evaluate manufacturing efficiency is misleading. All the processes evaluated followed a negative correlation between processing rate (kg/h) and specific energy consumption (J/kg). The new data conclude that laser processes have a relatively high energy intensity compared to conventional manufacturing alternatives. The results can be used to identify where the most significant improvements to individual laser systems can be made. The comprehensive comparison of processes allows manufacturers to select processes to improve environmental impact.
courts of Marianna Lubomirska née Bielińska and Joanna von Stein Lubomirska, the wives of the Grand Standard Bearer of the Crown, as an example of a women’s court in Old Poland
Authors: Popiołek Bożena
Published: October 2022

The current article contributes to the research on the functioning and organisation of female magnate courts in the Polish-Lithuanian state in the 18th century. The discussed courts belonged to Marianna née Bielińska and Joanna née von Stein, the wives of the Great Standard-Bearer of the Crown Jerzy Ignacy Lubomirski. Both ladies closely collaborated with the Wettin family, then ruling the Commonwealth of Poland and Lithuania. Special attention has been devoted to Joanna von Stein Lubomirska, whoafter her hers husband’s death still surrounded herself with a large court and continued numerous economic ventures which allowed her to retain high standards of living.
Estratégias de coping e motivação de praticantes de corrida de rua
Authors: Oliveira Daniel Vicentini de , Freire Gabriel Lucas Morais , Souza David Leonardo Oliveira , Aizava Paulo Vitor Suto , Fiorese Lenamar , Nascimento Júnior José Roberto Andrade
Published: October 2022

O objetivo do estufo foi analisar as estratégias de coping e a motivação de praticantes de corrida de rua do município de Maringá – PR. Trata-se de um estudo transversal, cuja mostra foi composta por 55 praticantes de corrida de rua, de ambos os sexos, com idade mínima de 20 anos de idade. Como instrumentos foram utilizados uma ficha de identificação, o Exercise Motivation Inventory (EMI-2) e o Inventário de Estratégias de Coping (IEC). A análise dos dados foi feita através de estatística descritiva e inferencial (p<0,05). Os resultados evidenciaram que os homens apresentaram um perfil mais competidor em relação às mulheres (p=0,019), além de utilizarem as estratégias rendimento máximo sob pressão (p=0,017), concentração (p=0,030) e confiança e motivação (p=0,021). Os indivíduos com maior tempo de prática utilizam mais da estratégia concentração (p=0,020). Os que treinavam até três vezes na semana se motivavam mais pela reabilitação da saúde. A estratégia de formulação de objetivos foi o domínio que mais obteve correlações com a motivação (p<0,05). Conclui-se que existem inúmeros motivos para a prática dos corredores de rua, assim como as estratégias de enfrentamento utilizadas.
Surgical Care under COVID-19 Pandemic Conditions (Literature Review)
Authors: Timerbulatov M. V. , Garaev R. R. , Timerbulatov Sh. V. , Bakirov A. A. , Gafarova A. R.
Published: October 2022

Since March 2020, when COVID-19 pandemic was declared by WHO, the new coronavirus infection has spread widely around the world, claiming many lives and destroying the economies, social structures, and various aspects of people’s lives. The pandemic has had a major impact on health facilities, including the surgical service. The healthcare system had to completely reorganize its methods of work. The need to deploy a significant number of infectious disease beds necessitated the convertion of many medical organizations into Covid hospitals, with a reduction in surgical units and beds. The scheduled surgical operations were therefore cancelled and postponed. Emergency surgical care was provided as needed, albeit in a reduced scope. The number of patients seeking emergency surgical care decreased mainly due to the fear of contracting COVID-19. The data show that there is a significant increase in the number of perioperative complications and mortality, especially in patients with acute surgical pathology and co-occurring COVID-19. The paper presents the data from professional literature on the peculiarities of surgical care in the context of the coronavirus pandemic, changes in a number of obligatory indicators of the quality of surgical care for patients.
Clinical Experience with Organ-Preserving Surgery in Placenta Accreta
Authors: Arutyunyants A. G. , Ovchinnikova M. B.
Published: October 2022

Introduction. A higher number of repeated cesarean sections determine a higher risk of placental ingrowth into the scar area of the uterus. The absence of current clinical guidelines in this field necessitates the need for development of various methods for organ-preserving surgery in placenta accreta, which preserve a woman’s reproductive function, as well as reduce risks for future pregnancies and childbirth.

Materials and methods. The paper presents the successful clinical experience of organ-preserving surgical treatment of placental ingrowth, excluding the stage of fundal cesarean section (Perinatal Center, Noyabrsk, Yamalo-Nenets Autonomous District).

Case description. The paper describes two clinical cases of successful organ-preserving surgical treatment of placental ingrowth with preservation of reproductive function and provision of a more favorable prognosis for subsequent reproductive plans due to excluding formation of two scars on the uterus in different localizations.

Results and discussion. Early dissection of adhesions in order to provide access to the surgical site is crucial and reduces the blood loss after fetal extraction and the risk of intraoperative complications such as bladder, ureteric and intestinal injury. Temporary compression hemostasis via performing endovascular temporary balloon occlusion of the infrarenal aorta, or via temporary turnstile hemostasis using a Foley catheter, allows for organpreserving surgery that excludes the formation of two scars on the uterus in different localizations without increasing the amount of blood loss.

Conclusion. Surgical tactics in organ-preserving treatment of placental ingrowth excludes the stage of fundal cesarean section, and involves the cesarean section at the border of the uterine-placental hernia and the body of the uterus with subsequent metroplasty. The surgery performed demonstrate the optimal result – a relatively low blood loss, a short duration of the operation and, above all, more favorable prognosis for subsequent reproduction.
Clinical Case of Successful Surgical Treatment for Giant Cell Metastatic Lung Sarcoma
Authors: Baksiyan G. A. , Stepanyants N. G. , Astakhov D. N. , Aksenenko A. V. , Zavyalov A. A.
Published: October 2022

Introduction. Sarcomas refer to a group of heterogeneous non-epithelial malignant tumors originating from connective tissue. These tumors are characterized by extremely aggressive local growth, relatively low incidence of lymphogenic metastases, predominant and early hematogenic generalization. These tumors most oft en metastasize to the lungs.

Materials and methods. The paper describes a case of successful surgical treatment for a giant retroperitoneal fibrosarcoma metastasis to the lung.

Results. Successful treatment for sarcoma depends primarily on a global understanding by oncologists of the complex pathogenesis, histological forms and principles of comprehensive treatment for this complex, polymorphic group of malignant pathologies. The earlier the primary site is diagnosed, the sooner and more definitely the surgical treatment is performed, and the more correctly the drug therapy is carried out, the better the result of the complex treatment approach. Similarly, sarcoma secondary sites should be treated proactively – without waiting until their size and local spread contraindicate surgical treatment. Conclusion. Neglected sarcoma cases indicate the need for combined and extended surgical interventions, one successful example of which is described in this paper.
Asymptomatic Hepatocellular Carcinoma (Clinical Case)
Authors: Shkaraburov A. S. , Rudenko D. N. , Vaiman E. F. , Soboleva O. M. , Zakharova Yu. V.
Published: October 2022

Introduction. Hepatocellular carcinoma is oft en asymptomatic in its early stages and when the tumor is small. Though this type of tumor is oft en accompanied with metastasis to the lungs, the present paper describes a patient whose both pathologies were accidentally detected by a chest X-ray. According to his medical history, the last abdominal ultrasound was carried out three years ago.

The aim of this paper is to present a clinical case which demonstrates the asymptomatic primary cancer with pulmonary metastases and the diagnostic potential of radiological methods.

Materials and methods. During a chest X-ray, pensioner K, aged 65, was found to have a circular shadow of 2.5 cm in diameter in bronchopulmonary segment IV of the right lung. During the outpatient stage, the patient underwent clinical and laboratory diagnosis as well as ultrasound examination of the thyroid gland, abdominal, retroperitoneal and pelvic organs.

Results and discussion. Based on the data of histological and immunohistochemical examination, the diagnosis of «poorly differentiated hepatocellular carcinoma» was made. The paper presents a clinical case of hepatocellular carcinoma as an accidental finding against the background of the absence of complaints, clinical picture and characteristic changes in clinical and laboratory diagnostics. The paper highlights the importance of the primary (outpatient) healthcare activity aimed at working with the senior population for early detection of malignant pathology, including HCC.

Conclusion. The patient is scheduled for surgery and chemotherapy. The case follow-up showed a successful outcome.
Comparative assessment of RMI-IV and RMI-V in preoperative prediction of ovarian tumor type in pregnant women
Authors: Gerasimova AA , Shevchenko YuV , Klimenko PA , Asyrafyan LA
Published: October 2022

Prediction of ovarian tumor type in pregnant women is of great clinical significance, however, it is vastly difficult. In the last 5–10 years gynecologists were suggested to use RMI (Risk of Malignancy Index) in non-pregnant women, however the value of the test for obstetric practice has yet to be established. The study was aimed to determine RMI-IV and RMI-V during preoperative non-invasive prediction of ovarian tumor type in pregnant women. Retrospective and prospective clinical and laboratory data of 114 pregnant women aged 20–38 were collected. Among them 15 patients had malignant ovarian tumors (MOTs), 28 had borderline ovarian tumors (BOTs), and 71 had benign ovarian tumors. Color Doppler and pulsed wave Doppler ultrasound was performed. The levels of СА-125 were defined by enzyme immunoassay. Models IV, V were used to assess the risk of ovarian cancer. A moderate non-significant increase in blood levels of СА-125 compared to patients with benign ovarian tumors and BOTs was found in pregnant women with MOTs. Patients with BOTs and MOTs showed higher RMI-IV and RMI-V values compared to the group of pregnant women with benign ovarian tumors. Extreme values are required to guarantee the differences in the diagnosis of tumors (RMI-IV > 3500 indicate the presence of MOTs, the values below 100 indicate no malignancy). Similar RMI-V values are 1500 and 60. However, in most cases, availability of RMI-IV and RMI-V is insufficient for decision making, and a comprehensive approach has to be used. Thus, it is difficult to define ovarian mass type in pregnant women using RMI only. Comprehensive clinical assessment with the use of imaging methods is required for preoperative prediction of ovarian mass type in pregnant women, along with the use of prognostic models taking into account the majority of descriptive “morphological” tumor characteristics.
Genogeografiya v Rossii i mire SNP-markerov gena LZTFL1, associirovannyh s tyazhelym techeniem COVID-19
Authors: Балановская Е. В. , Горин И. О. , Петрушенко В. С. , Черневский Д. К. , Кошель С. М. , Темирбулатов И. И. , Пылёв В. Ю. , Агджоян А. Т.
Published: October 2022

Ranee byla obnaruzhena korrelyaciya mezhdu riskom smerti ot COVID-19 i etnogeograficheskim proiskhozhdeniem pacienta. Gen LZTFL1 otmechaetsya kak potencial'nyj marker, associirovannyj s dvuhkratnym uvelicheniem riska tyazhelogo techeniya COVID-19. Cel'yu issledovaniya bylo izuchit' prostranstvennuyu izmenchivost' SNP-markerov gena LZTFL1 v korennom naselenii Rossii i mira. Bioinformaticheskimi, statisticheskimi i kartograficheskimi metodami byl proveden analiz prostranstvennoj izmenchivosti polimorfnyh markerov gena LZTFL1 v 28 metapopulyaciyah (97 etnosov) Severnoj Evrazii (n = 1980) i 34 metapopulyaciyah mira (n = 3637). V Severnoj Evrazii osnovnye geograficheskie vektory izmenchivosti «sever–yug» i «zapad–vostok» v celom soglasuyutsya s antropologicheskim vektorom «evropeoidnost'–mongoloidnost'». Global'naya izmenchivost' tozhe sootvetstvuet antropologii: kazhdyj klaster korennogo naseleniya vklyuchaet populyacii tol'ko «svoej» chasti sveta — Afriki, Azii ili Ameriki. «Indoevropejskij» klaster ob"edinyaet evropeoidnye populyacii Evropy i Azii. Vse chetyre klastera korennogo naseleniya mira otdaleny drug ot druga, i tol'ko ogromnoe geneticheskoe raznoobrazie narodov Rossii i sopredel'nyh stran yavlyaetsya mostom, svyazuyushchim tri chasti sveta: Evropu, Aziyu i Ameriku. Sozdan kartograficheskij atlas prostranstvennoj izmenchivosti 11 SNP-markerov LZTFL1 v populyaciyah. Vyyavleny osnovnye zakonomernosti: a) mirovye ekstremumy prihodyatsya na korennoe naselenie Afriki i Ameriki; 2) Severnaya Evraziya yavlyaetsya perekhodnoj zonoj mezhdu mirovymi ekstremumami, no obladaet sobstvennymi zakonomernostyami i ogromnym razmahom izmenchivosti v mirovom masshtabe; 3) geneticheskij landshaft Rossii, kak pravilo, organichno vpisan v Evrazijskij landshaft.
Sravnitel'naya ocenka RMI-IV i RMI-V pri dooperacionnom prognozirovanii haraktera opuholej yaichnikov u beremennyh
Authors: Герасимова А. А. , Шевченко Ю. В. , Клименко П. А. , Ашрафян Л. А.
Published: October 2022

Prognozirovanie haraktera opuholej yaichnikov u beremennyh imeet vazhnoe klinicheskoe znachenie, no znachitel'no zatrudneno. V poslednie 5–10 let u neberemennyh v ginekologii predlozheno ispol'zovat' RMI (Risk of malignancy index), odnako v akusherskoj praktike cennost' etogo issledovaniya eshche ne ustanovlena. Cel'yu issledovaniya bylo opredelit' RMI-IV i RMI-V pri dooperacionnom neinvazivnom prognozirovanii haraktera opuholej yaichnikov u beremennyh. Retro i prospektivno otobrany dannye kliniko-laboratornogo obsledovaniya 114 beremennyh 20–38 let, iz kotoryh 15 pacientok imeli zlokachestvennye opuholi yaichnikov (ZOYA), 28 pacientok — pogranichnye opuholi yaichnikov (POYA) i 71 pacientka — dobrokachestvennye opuholi yaichnikov (DOYA). Provodili ul'trazvukovoe issledovanie (UZI) s ispol'zovaniem cvetovoj dopplerografii i impul'snovolnovoj dopplerometrii. Opredelyali koncentraciyu SA-125 s pomoshch'yu immunofermentnogo analiza. Dlya ocenki riska raka yaichnikov ispol'zovali modifikacii IV, V. V krovi beremennyh s ZOYA bylo vyyavleno umerennoe statisticheski ne znachimoe povyshenie SA-125 po sravneniyu s takovymi znacheniyami u pacientok s DOYA i POYA. Po sravneniyu s gruppoj beremennyh s DOYA, pacientki s POYA i ZOYA demonstrirovali povyshennyj uroven' RMI-IV i RMI-V. Dlya garantirovannogo razlichiya v diagnostike opuholej neobhodimy kraevye znacheniya (RMI-IV — vyshe 3500 ukazyvayut na ZOYA, nizhe 100 — na otsutstvie zlokachestvennogo processa). Dlya RMI-V analogichnymi znacheniyami yavlyayutsya 1500 i 60. Odnako dlya prinyatiya resheniya v bol'shinstve nablyudenij nalichiya tol'ko pokazatelej RMI-IV i RMI-V bylo nedostatochno i trebovalos' ispol'zovat' kompleksnyj podhod. Takim obrazom, opredelit' harakter novoobrazovanij yaichnikov u beremennyh trudno, esli ispol'zovat' tol'ko indeksy RMI. Dlya dooperacionnogo prognozirovaniya haraktera opuholej yaichnikov u beremennyh trebuetsya kompleksnoe klinicheskoe obsledovanie s ispol'zovaniem vizualizacionnyh metodov, primenenie modelej prognozirovaniya, uchityvayushchih bol'shoe kolichestvo opisatel'nyh «morfologicheskih» harakteristik opuholej.
Agent-based approach to designing flexible manufacturing systems
Authors: Huseynov Agil Hamid , Salimova Mehriban Rashid
Published: October 2022

The article considers the process of designing modules of a flexible production site using multi-agent technology. For a comprehensive organization of the design, there has been proposed an algorithm of intelligent automated design of the complex technical systems, flexible manufacture systems (FMS) being used as an example. It has been stated that the research at the stages of the conceptual design of the FMS is carried out by collecting prototype variants with using expert knowledge and interaction of agents-designers according to the method of self-realizing computer aided design. Building a distributed system for the intelligent design of a hybrid architecture using the features of agent technology is considered. A flexible manufacture system is chosen as a design object, which is a complex technical object of research, the process of its design is multi-stage and iterative. To design such systems using a common functional model at the initial stage, a set of tasks is defined to facilitate the computing design of the FMS. This approach to the design of FMS requires implementing the solutions of a large number of local problems of different purposes. To solve the local problems of design procedures there has been proposed a multi-agent design technology, where the agent-designer performs a specific local task of the design process. The developed formalisms and algorithms help automate the synthesis of technical objects of the FMS. To build an automated conceptual design system as main decision-making for the multi-agent systems, there has been proposed a technical solution based on the knowledge of intelligent multi-agent systems. Using a multi-agent system makes it possible to build a distributed parallel design system with ability to be transferred to various hardware and software platforms. There has been also proposed the structure of a multi-agent system for the intelligent computer-aided design based on the designer's knowledge base.
Acute thoracic syndrome in a school patient with falciform disease: a case report
Authors: Santos Amanda , Jung Cinthia , Araujo Izabel , João Paulo
Published: October 2022

OBJECTIVE: To describe the case of a male pediatric patient with acute thoracic syndrome (ATS) in sickle cell anemia, linking it to the medical literature. CASE DESCRIPTION: A 9-year-old male patient, developed strong pain associated to headache and priapism, hence admitted to the emergency of a tertiary referral hospital. A priapism relief was noticed after hydration and morphine sedation. He developed severe acute thoracic syndrome, pneumonia and pleural effusion. The use of cefotaxime, clindamycin and clarithromycin was started. Mechanical ventilation was necessary and the patient was sent to the intensive care unit. On the tenth day, patient developed sepsis consequently cefotaxime and clindamycin were interrupted and piperacilin + tazobactam + linezoline were introduced. Kept clarithromycin. On the twelfth day, he had prophylaxis for pulmonary thromboembolism (TEP) with enoxaparin due to the expanded D-dimer. A second TEP was confirmed after some days. Three blood transfusions were needed during the hospitalization. He recovered gradually and was discharged on the thirty-sixth day keeping on thromboembolism prophylaxis until his return for other tests. COMMENTS: Patient had the infection and pulmonary thromboembolism as possible causes to trigger the acute thoracic syndrome. As observed in the medical literature, the pain crises anticipated the ATS. Alterations were observed on the laboratorial tests and imaging exams compatible with cases described by other authors. The good progress was the reflex from the adequate diagnosis and treatment.
Miisa Giizhaabiziyin
Authors: Lee Damien
Published: October 2022

Taking an axe to gendered space in a northern Ontario reserve. The basis for the following dibaajimowin was told to me many times by my father throughout my life. He witnessed it as a child. It is a story that has become mine in a shared sense by way of learning it enough to tell it in my own way, to re-interpret it within my own life’s context (Henderson 2006, 131). Thus, this story is true while also taking on certain aspects I have added in order to apply it in a way that I believe supports the resurgence of Anishinabekwewak knowledge and power within the intersection of Indigenous Women’s connection to territory and Indigenous Women’s transcendence over the effects of colonialism. In keeping with Anishinabe intellectual traditions, if/when shared in a different context, I would not/will not tell this dibaajimowin in exactly the same way.
PENGARUH GAYA KEPEMIMPINAN RELATIONSHIP FOCUSED CEO LEADERSHIP DAN INCLUSIVE LEADERSHIP DENGAN SYMMETRICAL INTERNAL COMMUNICATION TERHADAP SCOUTING KARYAWAN MILENIAL DI WILAYAH PERKANTORAN JAKARTA
Authors: RAHMAWATI MERI , PUTRI APRILLIA ZAENUDIN  , NETANIA EMILISA
Published: October 2022

Tujuan dari penelitian ini adalah menganalisis pengaruh gaya kepemimpinan Relationship Focused CEO Leadership dan Inclusive Leadership dengan Symmetrical Internal Communication terhadap Scouting Karyawan Milenial di Wilayah Perkantoran Jakarta. Data dikumpulkan dari seratus lima puluh satu karyawan milenial di Jakarta dengan teknik pengumpulan data yang digunakan adalah sampel. Uji hipotesis yang digunakan dalam penelitian ini adalah menggunakan analisis SEM (Structural Equation Modeling). Hasil pengujian hipotesis dalam penelitian ini menunjukkan terdapat pengaruh positif Relationship Focused CEO Leadership dan Inclusive Leadership, Terhadap Symmetrical Internal Communication, dan terdapat pengaruh positif Symmetrical Internal Communication terhadap Scouting. Impikasi manajerial dalam penelitian ini bagaimana kemampuan gaya kempemimpinan dan berkomunikasi sangat penting dalam kehidupan berkelompok maupun berorganisasi. Pemimpin yang menerapakan gaya berfokus terhadap hubungan dan yang inclusive serta memiliki keterampilan komunikasi yang cukup akan mempengaruhi dan bergerak Orang lain dan pengikut mereka. Kepemimpinan muncul dan berkembang melalui interaksi Otomatis antara pemimpin dan pengikut. Hal ini diharapkan karyawan milenial Jakarta dapat berkontribusi dalam suaranya untuk meningkatkan perilakunya di perusahaan.
FAKTOR-FAKTOR YANG MEMPENGARUHI PERMINTAAN KONSUMEN TERHADAP LISTRIK PADA RUMAH TANGGA
Authors: Nababan Ezra Yunisa , Novester Andhika
Published: October 2022

This research aims to determine the factors that influence the family's electrical energy demand. The research method used is descriptive quantitative, the data used is secondary data in the form of community income, population and economic growth. The results showed that income had a significant positive effect on household electrical energy demand, population had a significant positive effect on household electrical energy demand and economic growth had no effect on household electrical energy demand. Simultaneous test results show that all independent variables have an effect of 95.7% on household electrical energy demand.
THE IMPACT OF ONLINE REVIEWS ON ONLINE PURCHASE INTENTION IN TOKOPEDIA (JAKARTA)
Authors: Ramadhan Muhammad Aditya , Nugroho Ivan , Wisnu Alcado Anggramarizky
Published: October 2022

Abstract

Purpose – The purpose of this research is to examine the type of online reviews; timelines, quantity, valence and its relationship on online purchase intention in e-commerce (Tokopedia) among millennials in Jakarta.

Design/methodology/approach – The quantities approach and simple random sampling methodology were use in this research. Data were gathered through a survey instrument, and the partial least square equation modelling (PLS-SEM) technique was subsequently applied to 98 responses. The model explained variation of the major constructs in relation on online purchase intention of e-commerce (Tokopedia) among millennials in Jakarta.

Findings – Reviews timelines is the most influential online reviews element towards Jakarta millennial’s online purchase intention for e-commerce.

Originality/value – The research project has provided the researcher and marketers with more clarity into the area of online purchase intention for e-commerce products, which is a volatile and dynamic area with continuous uncertainty.

Keywords – Online purchase intention, Reviews timelines, Reviews quantity, Reviews valence.

Paper type – Research paper
PENGARUH FINANCIAL DISTRESS DAN CORPORATE GOVERNANCE TERHADAP TAX AVOIDANCE
Authors: Hermawan Rony , Aryati Titik
Published: October 2022

This research aims to examine the effect of financial distress and corporate governance on tax avoidance. Tax avoidance is measured using cash effective tax rate (CETR), while financial distress is measured using Altman Z-Score, and corporate governance is proxied by independent commissioners, board of directors, and audit committee. Quantitative methods used in this research by using secondary data sources. Researchers took the data on the company from 2018 to 2020 and using the analysis unit manufacturing companies consumer goods sector listed on the Indonesia Stock Exchange. The method of determining the sample in this research used purposive sampling. Analysis of the data used as hypothesis testing is multiple regression analysis. The results of this research indicate that financial distress, independent commissioners, and board of directors have a negative effect on tax avoidance. Meanwhile, audit committee have a positive effect on tax avoidance.