bluuebunny/crossref_metadata_2025_split huggingface dataset:
О научно-практическом наследии профессора Геннадия Вячеславовича Егорова
Authors: Egorov A. 
Published: December 2021

Показан путь становления профессора, доктора технических наук, лауреата Государственной премии, члена экспертного совета ВАК Г.В. Егорова как видного ученого и практика в области проектирования судов, судостроения, судоремонта и судоходства. Описаны основные научно-практические результаты деятельности профессора Г.В. Егорова.
Отдельно отмечены основные шаги, предпринятые Г.В. Егоро-вым для развития отрасли, включая историю создания Морского Инженерного Бюро, главные научные работы, направленные на повышение эффективности работы существующего флота, безопасность мореплавания и создание концептов судов различного назначения нового поколения.
За 26 лет существования по проектам руководимого профессором Г.В. Егоровым Морского Инженерного Бюро было построено более 420 судов, огромное количество судов было модернизировано и переоборудовано. Написано более 1000 актуальных научных работ.
Представлены итоги деятельности профессора Г.В. Егорова на международной арене.
An overview of the application of machine learning in predictive maintenance
Authors: Trần Ngọc Trung , Triệu Hùng Trường , Trần Vũ Tùng , Ngô Hữu Hải , Đào Quang Khoa 
Published: December 2021

With the rise of industrial artificial intelligence (AI), smart sensing, and the Internet of Things (IoT), companies are learning how to use their data not only for analysing the past but also for predicting the future. Maintenance is a crucial area that can drive significant cost savings and production value around the world.
Predictive maintenance (PdM) is a technique that collects, cleans, analyses, and utilises data from various manufacturing and sensing sources like machines usage, operating conditions, and equipment feedback. It applies advanced algorithms to the data, automatically compares the fed data and the information from previous cases to anticipate or predict equipment failure before it happens, thus helping optimise equipment utilisation and maintenance strategies, improve performance and productivity, and extend equipment life. Robust PdM tools enable organisations to leverage and maximise the value of their existing data to stay ahead of potential breakdowns or disruptions in services, and address them proactively instead of reacting to issues as they arise. Therefore, it has attracted more and more attention of specialists in recent years.
This paper provides a comprehensive review of the recent advancements of machine learning (ML) techniques widely applied to PdM by classifying the research according to the ML algorithms, machinery and equipment used in data acquisition. Important contributions of the researchers are highlighted, leading to some guidelines and foundation for further studies. Currently, BIENDONG POC is running some pilot PdM projects for critical equipment in Hai Thach - Moc Tinh gas processing plant.
Energy integration: Green future for late-life offshore oil and gas assets
Authors: Nguyễn Thu Hương , Nguyễn Thị Thanh Lê 
Published: December 2021

In recent years, the oil and gas industry has been facing objections from a public greatly concerned with the severe environmental impact caused by fossil fuels and their infrastructures, and strong demands from policy makers seeking to meet decarbonisation goals. Amidst a global energy transition, the future demand, finance, and social responsibilities of oil and gas companies are increasingly in question. One of the biggest problems of the industry is what are the “green” solutions for the late-life offshore oil and gas assets. Energy integration with reusing or repurposing oil and gas assets for new technologies could be a worthwhile investment strategy helping reduce carbon emission from oil and gas production as well as accelerating carbon capture and storage (CCS) and green hydrogen development to support the global decarbonisation. According to research, the late-life offshore oil and gas assets play an important role in energy integration while helping to have more opportunities to develop the new technologies that are in the early stages of development with high capex, necessary to make them more economically attractive and facilitate maximum energy integration. Reusing or repurposing oil and gas infrastructure can lead to 30% capex saving and million tons of CO2 pa emission reductions.
In this paper, potential concepts of energy integration for offshore oil and gas assets are introduced, and some lessons learned and implications for reusing or repurposing late-life offshore assets for Vietnam are also presented.
O Enem como política de avaliação e as contradições ao processo de democratização educacional
Authors: Garcia Fabiane Maia , Caldas Rafaela Silva Marinho , Torres Gracimeire Castro 
Published: December 2021

O artigo discute o Exame Nacional do Ensino Médio – ENEM enquanto política de avaliação no contexto da reforma do Estado, ocorrida a partir da década de 1990 e as contradições ao processo de democratização educacional. Parte dos fundamentos que originara a política de avaliação do Ensino Médio no Brasil, abordando sobre o termo exame que se apresenta controverso ao conceito de avaliação compreendida como meio para o alcance dos objetivos do processo educacional (ESTEBAN, 2009), ainda discute o caráter de seletividade, mesmo apresentando-se como uma política democrática. O aporte teórico incluiu autores que abordam a temática, privilegiando a produção da área da educação, destacando-se, Barriga (1994), Behring e Boschetti (2009), Canan (2016), Krawczyk (2011,2018), Saviani (2001, 2018), Peroni (2003), Silva e Melo (2018). É uma pesquisa de natureza qualitativa e fonte bibliográfica com base na LDBEN 9394/96 (BRASIL, 1996) e portarias que instituíram o ENEM. Os resultados apontam o Enem como uma política de avaliação instituída no contexto do Estado capitalista por ser um instrumento para o alcance de interesses neoliberais, pois entendida como parte do processo de descentralização e privatização em que o Estado deixa de ser responsável direto pela execução das demandas sociais e os sujeitos envolvidos no processo educacional acabam sendo responsabilizados pelo fracasso ou sucesso dos resultados, promovendo a competição entre instituições, além de intensificar o dualismo histórico existente no ensino médio, ou seja, o caráter de terminalidade para o mundo do trabalho e a educação preparatória para o prosseguimento dos estudos no nível superior.
Effect of anthropogenic activities on aquaculture in north India and consequences for fish health resulting from bioaccumulation of heavy metals and histological alterations
Authors: Swaleh Sadiya Binte , Banday Umarah Zahoor , Usmani Nazura 
Published: December 2021

Investigations were carried out to assess the quality of fish Clarias gariepinus cultured at the pond in Northern India, Aligarh. The fishes are transported to fish market for multiple uses. It is indeed a matter of concern to detect Cu, Zn, Ni, Pb, Cr, Fe, Cd and Mg in both water and fish (C.gariepinus) tissues/organs (Gastrointestinal tract, Stomach, liver, Blood, Stomach content and Testes) cultured in the pond. Water and fish samples were collected from four different zones of the pond and analyzed for heavy metal accumulation. Thereafter alteration in fish tissue histology was also studied. Results obtained for water samples followed the order Ni (0.581Â±0.004MgL-1)>Pb (0.570Â±0.006 MgL-1)>Cd (0.110Â±0.001 MgL-1)>Cr (0.077Â±0.009 MgL-1)>Zn (0.075Â±0.003 MgL-1)>Mn (0.065Â±0.004 MgL-1)>Cu (0.054Â±0.007 MgL-1)>Fe (0.052Â±0.005 MgL-1). Maximum accumulation among tissues was observed in blood and lowest was observed in Integuments. Fe (1257.90 Mgkg-1.dw) concentration was recorded highest and Cd (6.68 Mgkg-1.dw) concentration was the lowest in all the tissues. Values for Bio-indices were as follows: Hepatosomatic Index (1.01), Gastro somatic Index (0.24) and Gonadosomatic Index (0.42). Bioconcentration factor (BAF) was highest in Blood followed by stomach content, liver, testes, G.I.T., stomach and integument. Water and Fish tissues showed accumulation beyond the permissible limits given by WHO and the United States (US) guidelines. Histopathology was also noted in the form of Necrosis, Pyknosis and Vacuolization in the liver, Macrophage Infestation in the stomach, disappearing spermatocytes and tissue breakage in testes.
Estimation of Partial Pressure of CO2 (pCO2) Around Mount Krakatau waters, Sunda Straits, Indonesia
Authors: Nurdjaman Susanna 
Published: December 2021

The study aimed to develop the formula and validation the value of oceanic carbon dioxide partial pressure (pCO2sea) around Krakatau Waters in the Sunda Strait using parameters such as sea surface temperature (SST), sea surface salinity (SSS), and chlorophyll-a (Chl). Using observation data from different seasons (September 2017 and April 2018) The formulation of the empirical equation by using a multivariate polynomial regression method. The results of the study show that the empirical equation for estimating the pCO2 sea is as follows: : pCO2= -472.069+1044.043x log(SST) -435.897xlog(SSS) -5.03xlog (Chl).This formula can be applied for both seasons. The results of the analysis of the T-student test and p-value showed a strong relationship between the SST parameters and pCO2 with a correlation of 0.91 then followed by salinity with a correlation of -0.82. Whereas chlorophyll-a holds a weak proportion with a correlation of 0.32. The increase in SST accelerates the solubility of CO2 from atmosphere to the sea thereby increasing CO2 sea concentration and increasing pCO2 sea. While the increase in salinity and chlorophyll-a only gives a weak effect
TABAGISMO COMO PROBLEMA NA SEGUNDA METADE DO ANO 2021, QUANTO AVANÇAMOS A RESPEITO?
Authors: Santos Cláudio Henrique Facundo dos , Cavalcante Larêssa Pinheiro , Silva Filho Marcos José Firmino da , Silva Roberto de Barros 
Published: December 2021

O tabagismo é uma doença crônica, caracterizado pelo consumo excessivo de produtos à base de tabaco, sendo causada pela dependência a nicotina. Ainda no ano de 2021, o tabaco representa um dos maiores insultos para a saúde pública do mundo pela sua alta prevalência e distribuição. É a segunda droga mais usada pela humanidade, ficando atrás apenas do álcool e na frente da Cocaína, está relacionado a doenças crônicas como câncer de pulmão, câncer de laringe, enfisema pulmonar, entre outras, representado custos de milhões de dólares nos sistemas de saúde.
Intraseasonal variability of ocean surface wind waves in the western South Atlantic: the role of cyclones and the Pacific South American pattern
Authors: Sasaki Dalton K. , Gramcianinov Carolina B. , Castro Belmiro , Dottori Marcelo 
Published: December 2021

Abstract. Extratropical cyclones are known to generate extreme significant wave height (swh) values at the ocean surface in the western South Atlantic (wSA), which are highly influenced by intraseasonal scales. This work aims to investigate the importance of intraseasonal timescales (30–180 d) in the regional climatology of waves and its atmospheric forcing. The variability is explained by analyzing the storm track modulation due to westerly winds. These winds present timescales and spatial patterns compatible with the intraseasonal component of the Pacific South American (PSA) patterns. The analyses are made using ECMWF’s ERA5 from 1979 to 2019 and a database of extratropical cyclones based on the same reanalysis. Empirical orthogonal function (EOF) analyses of the 10 m zonal wind and swh are used to assess the regime of westerlies and waves in the wSA. The EOF1 of the 10 m zonal wind (u10) presented a core centered at 45∘ W and 40∘ S, while the EOF2 is represented by two cores organized into a seesaw pattern with a center between 30–40∘ S and another to the south of 40∘ S. Composites of cyclone genesis and track densities as well as swh fields were calculated based on the phases of both EOFs. In short, EOF phases presenting cores with a positive (negative) u10 anomaly provide a favorable (unfavorable) environment for cyclone genesis and track densities and, therefore, positive (negative) swh anomalies. The modulation of the cyclone tracks is significant for extreme values of the swh. The spatial patterns of the EOFs of u10 are physically and statistically consistent with 200 and 850 hPa geopotential height signals from the Pacific, indicating the importance of the remote influence of the PSA patterns over the wSA.
Tối ưu hóa quy trình chiết xuất và khảo sát hoạt tính kháng khuẩn, kháng oxy hóa của cây Diếp cá (Houttuynia cordata)
Authors: Phan Ngọc Khôi , Phùng Thanh Sơn 
Published: December 2021

Nghiên cứu này đã tập trung vào việc khảo sát hiệu suất thu hồi dịch chiết cây diếp cá (Houttuynia cordata) với các điều kiện khác nhau, đồng thời khảo sát hoạt tính kháng khuẩn, kháng oxy hóa của dịch chiết cây diếp cá. Kết quả cho thấy nồng độ ethanol chiết 96o; thời gian chiết 2 giờ, nhiệt độ chiết 50oC cho hiệu suất chiết tách dịch chiết cây diếp cá là cao nhất. Dịch chiết cây diếp cá có khả năng kháng được các chủng vi khuẩn Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa ở mức trung bình trong điều kiện thí nghiệm. Ngoài ra, dịch chiết còn có khả năng kháng oxy hóa cũng ở mức trung bình (IC50 = 62,237 mg/ml) so với mẫu đối chứng là vitamin C (IC50 = 23,374 mg/ml) ở các nồng độ thử nghiệm khác nhau.
KUDA JAWA DAN GAJAH SIAM PEREKAT HUBUNGAN JAWA-SIAM
Authors: Supardi Nunus 
Published: December 2021

Negeri Siam atau Thailand sekarang, sangat tertarik pada kebudayaan Nusantara, khususnya Jawa. Tarian, musik, batik, cerita Panji, dan bahasa Jawa sangat dikenal di Siam. Di Siam cerita Panji dari Kediri telah diperlakukan sebagai cerita drama yang disakralkan dengan dengan nama, Inao. Selain tertarik pada mata dagang rempah-rempah, kayu cendana, dan kapur barus, ternyata Siam juga tertarik pada kuda Jawa. Masalahnya, belum banyak orang yang mengetahui bahwa kuda Jawa juga pernah menjadi mata dagang yang penting. Selain itu, belum banyak diketahui bahwa kuda juga dijadikan cenderamata bergengsi untuk diberikan kepada Raja Siam. Sebaliknya, Raja Siam menjadikan hewan gajah yang dimitoskan sebagai hewan suci sebagai cenderamata untuk Raja Jawa. Tujuan kajian ini adalah agar masalah jual-beli dan saling tukar cenderamata kuda dan gajah antara Jawa-Siam dapat membuka wawasan kita bahwa kuda dan gajah menjadi benih dalam membangun persahabatan kedua bangsa. Melalui metode kajian berdasarkan pada sumber pustaka di Siam dan VOC serta sumber lainnya diketahui bahwa selain budaya, sejak beberapa abad yang lalu kuda Jawa telah ikut menjadi daya tarik bagi raja-raja Siam untuk datang ke Jawa. Sebaliknya, Siam menjadikan gajah sebagai cenderamata bagi Jawa. Kedua hewan itu telah ikut menjadi “lem perekat” bagi kedekatan hubungan antara kedua bangsa dari dulu hingga kini.
ANALISIS KEMAMPUAN PEMERINTAH DESA DALAM ALOKASI DANA DESA
Authors: Pakpahan Aston , Lestari Tuti 
Published: December 2021

Penelitian ini dilaksanakan dengan tujuan: 1) Untuk mengetahui bagaimana kemampuan pemerintah desa dalam pengelolaan alokasi dana desa di Kecamatan Parenggean. 2) Untuk mengetahui bagaimana model pengelolaan alokasi dana desa dikantor desa Kecamatan Parenggean. Penelitian ini berlangsung kurang lebih 2-3 bulan dan berlokasi di Desa Bandar Agung Kecamatan Parenggean.
Tipe penelitian yang digunakan adalah tipe deskriptif kualitatif yang bertujuan untuk memberikan gambaran secara mendalam terkait dengan masalah yang diteliti. Penelitian kualitatif adalah penelitian yang menghasilkan prosedur analisayang tidak menggunakan prosedur analaisa statistic atau cara kuantitatifikasi lainnya.
Penelitian kualitatif memiliki karakteristik dengan mendeskripsikan suatu keadaan yang sebenarnya, tetapi laporannya bukan sekedar bentuk laporan suatau kejadian tanpa suatu interprestasi ilmiah serta memahami atau memperoleh pemahaman mengenai fenomena atau gejala yang diangkat untuk diteliti secara mendalam.
Hasil Penelitian: 1) Pengelolaan ADD di Desa Bandar Agung Kecamatan Parenggean untuk saat ini sudah berjalan secara optimal. Hal tersebut dikarenakan. Kemampuan pemerintah desa baik dari aspek administratif maupun dalam penentuan program kerja dalam penggunaan ADD yang sudah baik
Model pengelolaan ADD yang dijalankan di Desa Bandar Agung sudah berjalan dengan baik dengan bukti bahwa untuk keterwakilan musrembang dari kereterwakilan masyarakat disampaikan oleh RT masing-masing ini menunjukan bahwa adanya transparansi dalam penggunaaan dana desa, dan masyarakat mendapatkan manfaatnya meskipun dalam pengelolaan keuangan pemerintah desa juga mengalami kurangnya sumber daya manusia dalam membantu pengelolaan keuangan secara baik.
Nghiên cứu các yếu tố ảnh hưởng đến mức độ khó khăn vướng mắc trong công tác quản lý chi phí đầu tư xây dựng
Authors: Nhẫn Mai Bá , Phong Lê Trung 
Published: December 2021

Bài báo trình bày kết quả tìm ra các yếu tố ảnh hưởng đến mức độ khó khăn vướng mắc trong công tác quản lý chi phí đầu tư xây dựng, từ đó đề xuất các giải pháp phù hợp. Tác giả đã thực hiện nghiên cứu này, bằng phương pháp mô hình thống kê hiện đại – SPSS. Nghiên cứu sử dụng 5 biến độc lập: “Văn bản pháp lý”, “Biến động giá”, “Năng lực người tham gia”, “Thiết bị công nghệ”, “Năng lực quản lý của chủ đầu tư”. Và một biến phụ thuộc “Mức độ khó khăn vướng mắc của công tác quản lý chi phí đầu tư xây dựng”. Kết quả xếp hạng mức độ ảnh hưởng của các yếu tố lần lượt là: “Văn bản pháp lý”, “Năng lực người tham gia”, “Biến động giá”, “Thiết bị công nghệ”, “Năng lực quản lý của chủ đầu tư”.
Phân tích rủi ro trong giai đoạn chuẩn bị dự án nhà cao tầng của chủ đầu tư tại Tp.Hồ Chí Minh
Authors: Dương Hoàng Văn , Long Lương Đức 
Published: December 2021

Vòng đời của tất cả các dự án (Bao gồm dự án đầu tư xây dựng) đều chứa đựng các rủi ro. Trong giai đoạn chuẩn bị dự án, có rất nhiều rủi ro tiềm ẩn, gây hậu quả nghiêm trọng làm ảnh hưởng các giai đoạn sau và toàn dự án, song thực tế các nghiên cứu về rủi ro trong giai đoạn chuẩn bị dự án còn rất hạn chế so với các nghiên cứu liên quan khác. Bài báo này tập trung phân tích các nhân tố rủi ro ảnh hưởng trực tiếp đến tiến độ và chi phí trong giai đoạn chuẩn bị dự án. Thực hiện khảo sát 28 nhân tố rủi ro được chia thành 05 nhóm chính: Tài chính và Kinh tế (1); Chính sách và Pháp luật (2); Kỹ thuật và Công nghệ (3); Tổ chức và Quản lý (4); Môi trường và Xã hội (5). Bảng khảo sát được thu thập và lấy ý kiến từ các chuyên gia, các nhân sự có nhiều kinh nghiệm làm việc cho các công ty xây dựng tại Tp.HCM để tìm ra các nhân tố rủi ro xảy ra thường xuyên và có mức độ tác động lớn, ảnh hưởng trong giai đoạn. Từ đó cung cấp cho các doanh nghiệp, các Chủ đầu tư có kế hoạch điều chỉnh đường lối, chính sách phù hợp nhằm nâng cao hiệu quả trong việc đầu tư và quản lý dự án.
Clinical Trials on COVID-19: What is Being Researched in the United States?
Authors: Camilla Carvalho Laureano Isla , Leite Cavalcanti Alessandro 
Published: December 2021

The emergence of Coronavirus Disease 2019 (COVID-19) in late 2019 has brought great challenges to public health worldwide and, to date, there is no specific approved therapeutic protocol. Therefore, this chapter will analyze types of intervention for use in patients with COVID-19 developed by American researchers from records made on the Clinical Trials platform. For the search strategy, keywords “COVID-19” in the “Condition or Disease” section and “United States” in the “Country” section were used. No filters were applied. Data were descriptively analyzed. In total, 1,182 studies were obtained, of which 496 met the eligibility criteria. Sample size ranged from 1 to 10,000 participants. Most studies involved the age group of 18–64 years (48.6%). As for design, randomized type (80.5%), parallel (75.6%), open designs (38.7%) and those with therapeutic purpose (88.3%) were more frequent. Most clinical trials used the two-arm trial (67.3%), researched drugs (64.8%), used placebo (55.2%) and were sponsored by pharmaceutical/biotechnology companies (35.4%). Clinical trials developed by American researchers on COVID-19 involve adult and elderly participants, with predominance of randomized, parallel and open design, for therapeutic purposes and mostly evaluated immunosuppressants or combinations of antivirals/immunosuppressants. The drugs and biological products Remdesivir, Baricitinib in combination with Remdesivir, Bamlanivimab and Etesevimab, REGEN-COV and COVID-19 convalescent plasma were also used, authorized for emergency use.
Structure-Property Relationships in Benzofurazan Derivatives: A Combined Experimental and DFT/TD-DFT Investigation
Authors: Raissi Hanen , Chérif Imen , Ayachi Hajer , Haj Said Ayoub , Hassen Fredj , Ayachi Sahbi , Boubaker Taoufik 
Published: December 2021

In this work we seek to understand and to quantify the reactivity of benzofurazan derivatives toward secondary cyclic amines, like pyrrolidine, piperidine and morpholine, acting as nucleophile groups in SNAr reactions. For this aim, physico-chemical and structural descriptors were determined experimentally and theoretically using the DFT/B3LYP/6-31+ g (d,p) methodology. Thus, different 4-X-7-nitrobenzofurazans (X = OCH3, OC6H5 and Cl) and products corresponding to the electrophilic aromatic substitution by pyrrolidine, piperidine and morpholine, were investigated. Particularly, the HOMO and LUMO energy levels of the studied compounds, determined by Cyclic Voltammetry (CV) and DFT calculations, were used to evaluate the electrophilicity index (ω). The latter was exploited, according to Parr’s approach, to develop a relationship which rationalizes the kinetic data previously reported for the reactions of the 4-X-7-nitrobenzofurazans with nucleophiles cited above. Moreover, the Parr’s electrophilicity index (ω) of these benzofurazans determined in this work were combined with their electrophilicity parameters (E), reported in preceding papers, was found to predict the unknown electrophilicity parameters E of 4-piperidino, 4-morpholino and 4-pyrrolidino-7-nitrobenzofurazan. In addition, the relationship between the Parr’s electrophilicity index (ω) and Hammett constants σ, has been used as a good model to predict the electronic effect of the nucleophile groups. Finally, we will subsequently compare the electrophilicity index (ω) and the electrophilicity parameters (E) of these series of 7-X-4-nitrobenzofurazans with the calculated dipole moment (μ) in order to elucidate general relationships between E, ω and μ.
A 10 Years Old Child Presented with Hemiparesis and Moyamoya Disease – A Case Report
Authors: Seth Nikita H. , Bele Ashish W. , Singh Nivedita Chandrapal , Qureshi Mohd Irshad , Kulkarni Chaitanya A. 
Published: December 2021

Introduction: In Moyamoya disease there is long standing, continuous developing occlusion of the arteries of Circle of Willis which leads to development of typical collateral vessels seen on cerebral angiogram. Moyamoya Disease was diagnosed on performing the MR Angiography. Child with Moyamoya disease presents with recurrent episodes of sudden hemiplegia that might occur at alternative sides. The disease is progressive and dynamic in children. Acute management of this disease is symptomatic. MR Angiography clinches the diagnosis and neurosurgical intervention with physiotherapy which may be required as a part of definitive management. Objectives: Our case brings forth the significance of considering Moyamoya Disease to be classic etiology for acute ischemic strokes in children.
Case Report: We report a rare case of 10 year old female child who was admitted at our medical center for the complaints of transient ischemic attack & left side hemiparesis with left facial palsy. In respect to our case, surgical intervention was not considered due to having satisfactory response on the commencing medical management.
Conclusion: Our case brings forth the importance of considering MMD to be classic etiology for acute ischemic strokes in children .MMD is main diagnosis when we evaluate the children with cerebrovascular events. To asses this non operative MR angiography is investigation of choice. For favourable outcome in children with Moyamoya disease the key is early diagnosis and management.