bluuebunny/crossref_metadata_2025 huggingface dataset:
Changes in risk factors trends in coronary surgery over the past decade - a single center validation
Authors: Mihajlovic Bojan , Redzek Aleksandar , Velicki Lazar , Jarakovic Milana , Bankovic Dragic , Mihajlovic Bogoljub
Published: September 2022

Introduction/Objective. The risk factors in coronary patients indicated for surgery change during the years. The aim of this study was to analyze the trends of risk factors which enter into the composition of the European System for Cardiac Operative Risk Evaluation (EuroSCORE II). Methods. The research included 3996 patients who underwent coronary surgery from January 2012 to December 2020 at our clinic. For estimation of the risk factors and evaluation of the operative risk, the EuroSCORE II model was used. Kruskal?Wallis H test was used for testing differences of values of numerical variables between years. The calibration and the discriminative power of the EuroSCORE II were assessed by comparing the observed to the expected mortality ratio and by using area under the receiver operating characteristic curve (AUC). Results. Old age has shown a significant increasing trend (p < 0.0005), as well as diabetes mellitus on insulin therapy, before surgery (p = 0.004). The significant declining trend have shown: extracardiac arteriopathy (p = 0.003), critical preoperative condition (p = 0.013), preoperative NYHA Classes III or IV (p < 0.0005) and preoperative angina pectoris CCS Class IV (p < 0.0005). The mean value of the EuroSCORE II decreased from 1.73 to 1.53 (p < 0.0005). The observed mortality was 1.70% and the mean, predicted by the EuroSCORE II, was 1.75%. The O/E mortality ratio was 0.98; 95% confidence interval 0.95?1.03. The AUC was 0.825. Conclusion. Over the past decade the risk profile of patients for coronary surgery has changed. The mean value of the EuroSCORE II has a declining trend with a good predictive and discriminative power.
Observation of Spatial and Temporal Distribution of Dissolved Oxygen and Detection of Oxygen Minimum Zones in the Bay of Bengal
Authors: Chowdhury Mohammad Zahedur Rahman
Published: September 2022

The decrease in oxygen content (deoxygenation) of coastal and oceanic waters worldwide has found to be worsened in recent decades. Recent findings indicate that the Peru-Chile margins, West African coast, the northern Indian Ocean and Bay of Bengal are increasingly vulnerable to deoxygenation events. This study observed the distribution of dissolved oxygen (DO) and found the Oxygen Minimum Zones (OMZ) in the Bay of Bengal spatially and temporally. DO data was collected from the World Ocean Database for all the years the inventory has available. A permanent hypoxic condition at the mid-layer depths (200m -900m) was observed in the shallower area. During monsoon season, due to meteorological turmoil of cyclone genesis and heavy rainfall, the area get enough oxygen. The vertical distribution is found to be as decreasing at first few hundred depths and then increasing from 1,000m to the bed. The sections show OMZs more in summer and winter; less in monsoon. The OMZs lie mostly at 200-500m depth along the continental slope or at mid-regions of the basin.
For an Effective and Sustainable Management of Non-Tydal Lagoon Environments to Counteract the Eutrophication Effects
Authors: M Lenzi
Published: September 2022

Coastal lagoon environmental picture with the tendency to accumulate organic detritus, structural eutrophication, risks of dystrophy, with loss of biodiversity and fish products, is briefly described. Mitigation solutions are analyzed, focusing on the removal of macroalgal masses, artificial water renewal, sediment oxidation and more, highlighting the limits and benefits of each solution. With regard to the sediment oxidation, on which more emphasis is placed here, a review of the results obtained on two Tyrrhenian lagoons is made, through field experiences conducted between 2005 and 2021. These results showed an overall mitigation of the eutrophication effects, with reduction of nutrient load and sediment labile organic matter, reduction of macroalgal development, phanerogam return and increase in zoobenthonic biodiversity. Some possible effects of sediment resuspension on contaminants are reported.
Method for Estimating Ecological Carrying Capacity of DataPoor Coastal Finfish Cage Aquaculture Sites in Southeast Asia at System-Scale
Authors: Mayerle Roberto
Published: September 2022

This study presents the development of a simple and generally applicable method for estimating ecological carrying capacity (ECC) of coastal finfish cage aquaculture at the system-scale in Southeast Asia and potentially other data-poor island nations. The ECC method relies primarily on results of dynamic models for simulation of organic loading due to multiple fish farms. In this study, the ECC method was successfully integrated within a methodology under development at Kiel University to holistically evaluate site suitability, ecological carrying capacities at farm-level and system-scale, as well as siting. Results of the application of the methodology for a target aquaculture site in northwest Bali, Indonesia, are presented in this study. Analysis of these results identified traditional fish farms located outside suitable areas and large-scale commercial farm clusters operating beyond ecological carrying capacity. Nonetheless, it was found that production output of the site in Bali is far below ECC and that it could be increased considerably without harming the environment. Recommendations have been made for reallocating the mispositioned farms as well as for reducing fish production of the farm clusters while expanding overall fish production to the east. The ongoing operational early warning monitoring at the site in Bali is being supplemented with regular monitoring of sediment quality in the seafloor and water quality in the aquaculture area to promote sustainable development. The proposed methodology has wide applicability and can be easily adapted to other regions for investigating present conditions and planning new aquaculture sites in pristine regions. The methodology is currently being up scaled to several target sites selected by the Indonesian Government to expand the activity.
Phytoplankton Species in Linkage to Water Quality and Landsat Data Indices at the Southern Part of Burullus Lake, Egypt
Authors: A El-Alfy Muhammad
Published: September 2022

In aquatic ecosystems, phytoplankton assemblages are mostly affected by different water quality parameters. In March 2020, water and phytoplankton samples were collected from seven geo-referenced stations distributed along the southern part of Lake Burullus, in front of drains. Physio-chemical parameters (temperature T°C, pH, dissolved oxygen DO, Salinity, nitrite NO2 , phosphate PO4 , ammonia NH4 , and silicates SiO4 ) were analyzed in water samples. Phytoplankton samples were collected using a net mesh of a size of 20 µm. The most abundant classes are Chlorophyceae, Cyanophyceae, and Euglenophyceae in stations 7, 2, and 6, respectively. The difference between classes and species is based on the different discharge of wastes, the high load of organic matter, and salinity. Results of the average water quality index AWQI showed low water quality in front of drainage waters. The vegetative cover increases on the eastern side. Landsat images were acquired, treated, and processed for concluding three important indices along with the three sectors of the lake. These indices are normalized difference vegetation index (NDVI), normalized difference water index (NDWI), and phytoplankton turbidity index (PTI). The NDVI showed that the vegetation-covered areas of about 11.3, 2.6, and 1.36 km2 , and NDWI showed water areas of about 105.09, 153.25, and 43.57 km2 for eastern, middle, and western parts, respectively. PTI indicated that nearly 55.3% of phytoplankton turbidities concentrated towards the western side of the lake, followed by 44.21% at the middle part and 25.14 % on the eastern side. It is concluded that water quality nearby drains are bad, where the phytoplankton turbidities as observed from Landsat images were increased towards the southwestern parts.
The Process of Heat Transfer to the Sea Caused by Wastewater from the Central Cooling System of Vinh Tan Thermal Power, Binh Thuan - Vietnam
Authors: Duong Pham Xuan
Published: September 2022

Every day Vinh Tan thermal power center needs millions of gallons of seawater to cool the machinery system and that volume of seawater will eventually return to the sea. This volume of seawater with a temperature ranging from 32-35 degree celsius pouring into the sea will spread heat to the surrounding environment in a large area, down to the deep layer of the sea. Quantifying the affected space and water temperature, I’m using the ROMS (Regional Ocean Modeling System) model to solve this process. The source of boundary condition data for ROMS is obtained from the databases of NOMADS, COADS, QuikSCAT, TPXO7.1 through OPenDAP data access protocol. Topographic data sources, factory discharge water, river water flow, sea water temperature, discharge water temperature were collected from field measurements. The study area is the coastal sea waters from Hon Dinh headland to Ne headland covered by a network of 80x110 points in the horizontal direction and 5 sigma layers in the vertical direction. The results show that a strip of water with high temperature appears from the outlet of the factory towards the south and parallel to the shoreline. Heat transfer in layers has a similar thing which is very limited to the north because the flow effect from north to south is dominant. A strip of high-temperature water spread to the sea, after 10 days hot water had spread near Ne headland and after 30 days in all three layers, there was a coastal strip of water with a high temperature of over 28°C appearing to spread and stretch. long to the south, in the large surface this strip of water is larger than the middle layer, while the bottom layer is prolonged, but in some places it is interrupted and the hot water area is significantly smaller than the upper layers.
Breast Cancer Awareness in India
Authors: S Prasad
Published: September 2022

Breast cancer is the most common cancer worldwide representing nearly a quarter (23%) of all cancer in women. The incidence of breast cancer is on a rising trend in India and disproportionately higher mortality due to detection of breast cancer at advanced stage due to lack of awareness and early diagnosis and treatment. The vast majority of breast cancer patients undergo inadequate and inappropriate treatment due to lack of high quality infrastructure and sometimes skills and above all financial resources. In India health care facility pattern is heterogeneous, with various regions of it where the knowledge of breast cancer, benefits of awareness, early diagnosis ,and multidisciplinary treatment programs have not rea ched. Awareness for breast cancer is more in educated women so education is instrumental in changing the attitude towards breast cancer.
Evaluation of Sleep M Biocrystal Pilow/Topper/Mattress in Clinical Trials using 20 Subjects to Test for Pain Reduction, Sleep Improvement, Stress Reduction and Improvement in Circulation for Clients with Diabetes over 3 Months
Authors: G George
Published: September 2022

Biofeedback testing (4 hours fasting) using Quantum Biofeedback Analyzer has been done before and after 3 months of use of the Sleep M Biocrystals to test for improvement using the Sleep M Sleep M Biocrystals Pillow/Topper/Mattress from Sleep M in Markham, ON. Canada. These tests were complimentary for participants.This Biofeedback Testing method has been correlated with CBC Blood tests in previously published research papers by Prof. Dr. George Grant, Ph.D. Participants who were not using any medications given preference to avoid data accuracy. However if necessary, we selected participants who use up to 5 medications (including OTC and Rx)
Prevalence of Hepatitis Delta Virus in Hemodialysis Patients with Hepatitis B Virus in Benghazi, Libya as Starting Point
Authors: IH Attitalla
Published: September 2022

Hepatitis delta virus (HDV) is a subviral satellite RNA virus. It is consisting of approximately 1700 nucleotides long genomic circular RNA with one open reading frame encoding for two proteins (small delta antigens (HDAg-S) and large delta antigens (HDAg-L) coated with Hepatitis B virus (HBV) surface antigen (HBsAg). HDV was discovered in 1977 in an Italian patient who had chronic HBV infection. HDV infection is of particular concern in hemodialysis (HD) units due to HD patient’s segregation into groups, lack of HDV diagnosis, irreversible complications of the infection, and controversial treatments. Several different studies were conducted in different parts of the world to explore the prevalence HDV in HD patients. The prevalence was ranging from zero to 58%. In France HDV infection in chronic HD and kidney transplant patients was zero. HDV antibody was detected in 1.7% of HD and renal transplantation patients in Brazil. In Khartoum State, Sudan prevalence of HDV among hepatitis B patients on HD was 13.3%. The prevalence of HDV in HD patients in Iran was 44.5%. HDV antibody was positive in 58% of the HD patients in Menoufiya, Egypt there is no study so far conducted on the prevalence of HDV in HD patients in Libya. The aim of this study was to call for medical personal managing HD units to apply new restriction rolls in managing their work environments for the wellbeing of their patients.
Immunity in Medically Important Parasitic Infections
Authors: RMV Rao
Published: September 2022

Immunity is the rule. It is often incomplete and takes many years to develop and fade away quickly. Human life is a battlefield in which we are like soldiers attacked from all sides by bacteria, viruses, fungi and parasites. Our body is bestowed with a defense mechanism in the form of an immune system It has long been recognized that infections with parasites, such as intestinal worms, are often accompanied by blood eosinophilia, and this is due to an immunological process. Conditions in which blood eosinophilia is common include intestinal infections with Ancylostoma duodenale, Ascaris lumbricoides, Trichuristrichiura, various forms of Wuchereria bancroft, Brugiamalayi, loaloa, Dracunculus medinensis, mite infection of the lungs (including at least some cases of tropical eosinophilia);and hydrated disease is due to Echinococcus granulosus. Eosinophilia, in large numbers invades tissues in which antigen-antibody reaction has taken place. They appear to be attracted by some product of the antigen-antibody reaction and it has been shown that if tissues from sensitized guinea -pigs mixed with antigen in vitro, or tissues from guinea-pigs which have died from anaphylaxis, are transferred to the peritoneal cavity of normal guinea-pigs, the recipient develops very marked eosinophilia within 24 hours. The active agent has not been infected, but it is probably not histamine. The eosinophils of rodents are very actively phagocytic, and ingest cellular debris, mast cell granules, etc, but it is not certain whether this is true of eosinophils from other species, nor it is known what functions the eosinophils serve in these reactions. A multitude of defensive mechanisms are involved in parasitic infection. A humoral response develops when parasites invade blood stream (Malaria, Trypanosoma), whereas cell-mediated immunity is elicited by parasites that grow within the tissues (Eg: Cutaneous leishmaniasis). In protozoal infections, IgG, and IgM are produced. In Addition, IgA also produced in intestinal infection. With helminthic infections, IgG, IgM and IgE antibodies are produced.
Coronavirus Disease (COVID-19) Infection and Innate ImmunoResponse: Pathway to Eradicating the Pandemic
Authors: Edem Ekom Ndifreke
Published: September 2022

Covid-19 infection is highly transmissible with high degree of hospitalization and few level of lethality which has raised great concerns globally. Covid-19 is acquired through exposure to microdroplets present in exhalates of individuals already infected or by surface contact with contaminated formites with the viral particle and once the viral particle reaches the bronchioles and alveolar spaces; it binds to cells of the bronchial epithelium and Angiotensin 2 Converting Enzyme (ACE2) of the alveolar. An immense understanding of the interaction between Covid-19 infection and the host immune system could be the breakpoint needed to provide better management, treatment and support for the disease sufferers. Therefore, review of current knowledge between Covid-19 infection and the host innate immune system is important in order to sufficiently understand its pathogenesis and further give clues for the clinical management and development of preventive therapeutic strategies in treating this infection.
The Effect of Ezetimibe in the Treatment of Ebola
Authors: A Khanifar
Published: September 2022

Background: In this article, we are looking for treatment for Ebola virus. We will do it using a cholesterol-lowering drug called Ezetimibe. Methods: Marburg and Ebola hemorrhagic fevers are severe, systemic viral diseases affecting humans and non-human primates. They are characterized by multiple symptoms such as hemorrhages, fever, headache, muscle and abdominal pain, chills, sore throat, nausea, vomiting and diarrhea. Elevated liver-associated enzyme levels and coagulopathy are also associated with these diseases. Marburg and Ebola hemorrhagic fevers are caused by (Lake Victoria) Marburg virus and different species of Ebola viruses, respectively. They are enveloped, single-stranded RNA viruses and belong to the family of filoviridae. Case fatality rates of filovirus disease outbreaks are among the highest reported for any human pathogen, ranging from 25 to 90% or more. But when Ezetimibe is given to patients with the Ebola virus, we see that the drug blocks the transmission of the virus to the body by delivering the virus to the immune system. Results: In this article are paid to effect of drug Ezetimibe in the treatment of disease Ebola.NPC1L1 carry Ebola virus that by Ezetimibe, NPC1L1 disabled and cannot carry the virus with you. In fact, this drug (Ezetimibe) is a supplier of antigen to antibodies. We will also look at the function of the NPC1L1 and NPC1 receptors and the drug Ezetimibe. Conclusions: Ezetimibe has a higher affinity for NPC1L1 receptor than cholesterol, and cholesterol has a higher affinity for NPC1L1 receptor than Ebola virus. In fact, if we want to show the percentage of desire for NPC1L1 receptor, it is as follows: Ezetimibe> Cholesterol> Ebola virus
Analisa Quantity Take Off Dan Rencana Anggaran Biaya Dengan Metode Building Information Modeling (BIM) Menggunakan Software Autodeks Revit 2019 (Studi Kasus: Gedung LP3 Universitas Negeri Semarang)
Authors: Novita Rizki Dwi , Pangestuti Endah Kanti
Published: September 2022

Perkembangan dunia konstruksi berkembang semakin pesat. Semua pihak yang terlibat dalam proyek konstruksi, baik itu kontraktor, konsultan, owner maupun pihak-pihak yang berkenpentingan dintutut supaya mampu mencari sebuah solusi untuk menyelesaikan proyek-proyek konstruksi dalam kurun waktu yang cepat. Di dalam sebuah proyek konstruksi perhitungan volume merupakan hal yang sangat penting. Apabila terjadi kesalahan dalam perhitungan volume pekerjaan maka dapat mengakibatkan kerugian yang sangat besar. Sehingga metode perhitungan volume secara konvesional yaitu dengan metode perhitungan berdasarkan pada gambar Autocad dengan dibantu Microsoft Excel yang berpedoman pada SMM (Standard Method of Measurement) yang saat ini masih dilakukan oleh beberapa pihak yang memungkinkan terjadi human error dan membutuhkan waktu yang cukup lama perlu diganti dengan metode Building Information Modeling (BIM) dengan menggunakan software Autodeks Revit yang dapat menghitung volume dan Rencana Anggaran Biaya (RAB) secara efektif dan efisien.  Pada penelitian ini menggunakan cara atau metode perencanaan menggunakan Revit untuk mendesain bagian struktur (tanpa tangga) bangunan berupa pembetonan pondasi bore pile, pile cap, tie beam, kolom dan balok serta plat. Kemudian akan diperoleh volume dan Rencana Anggaran Biaya (RAB). Berdasarkan hasil penelitian yang telah dilakukan diperoleh hasil perhitungan dari Revit berupa volume total pembetonan sebesar 1647,99 m3 dan Rencana Anggaran Biaya (RAB) sebesar Rp 1.604.376.387,67
Pengendalian Ruang pada Kawasan Situ Cipondoh di Kota Tangerang, Provinsi Banten: Kajian Kebijakan
Authors: Tranggono Moch.
Published: September 2022

Situ Cipondoh merupakan salah satu reservoir yang memiliki peranan penting di Kota TangerangProvinsi Banten. Perubahan kondisi sempadan dari waktu ke waktu sebagai akibatnya terjadinya peningkatan kebutuhan masyarakat terhadap lahan di kawasan perkotaan. Kajian ini bertujuan untuk: 1) melakukan telaah rangkaian model pengendalian instrument tata ruang terhadap kawasan Sempadan Situ Cipondoh; 2) Menyusun rangkaian rencana aksi dan sinkronisasi terhadap penegakan dan penertiban penggunaan lahan yang tidak sesuai dengan penetapan RTRW Provinsi Banten.  Metode kajian yang digunakan dalam studi ini dilakukan melalui telaah regulasi sebagai dasar awal identifikasi kondisi RTRW Provinsi Banten, kemudian dilakukan survei sebagai tindak lanjut dengan terlebih dahulu melakukan penarikan garis sempadan sebagai dasar keruangan terhadap kondisi sempadan Situ Cipondoh. Kajian ini digunakan sebagai dasar pengambil keputusan dan rekomendasi untuk pengendalian tata ruang kawasan Situ Cipondoh.
Analisis Karakteristik dan Kebutuhan Parkir Kendaraan Pada Rumah Sakit Karima Utama Surakarta
Authors: Mulyono Gotot Slamet , Saputra Dwi Eko , Setiyaningsih Ika
Published: September 2022

Rumah Sakit Karima Utama Surakarta adalah Rumah Sakit Khusus Bedah yang termasuk dalam Rumah Sakit dengan Tipe C untuk melayani kebutuhan medis masyarakat setempat. Fasilitas tersebut harus  memiliki fasilitas parkir yang cukup luas. Karena rumah sakit umumnya memiliki tempat parkir yang terbatas, sebagian bahu jalan diubah menjadi tempat parkir. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik parkir dan perlu diperhatikan dalam pengelolaan ruang parkir. Data yang digunakan adalah data sekunder berupa waktu masuk/keluar masing-masing kendaraan, diperoleh dalam format tabel dari server parkir rumah sakit mulai pukul 07.00 sd 19 18 dan  20 Januari 2020, 12 jam sehari. 00 WIB. Analisis didasarkan pada pedoman Direktur Perhubungan Darat 1998, termasuk akumulasi tempat parkir, pengindeksan tempat parkir, jam parkir, volume tempat parkir, roaming tempat parkir, dan permintaan tempat parkir. Menurut analisis hari Senin, kumulatif harian tertinggi adalah 132/15 menit dengan mobil dan 253/15 menit dengan sepeda motor. Rata-rata jumlah mobil per hari adalah 239/12 jam dengan mobil dan 540,5/12 jam dengan sepeda motor.. Indeks parkir tertinggi mobil penumpang sebesar 110.00% dan sepeda motor 110,48% dengan rata rata durasi  parkir harian untuk mobil penumpang adalah 197,86 menit dan untuk sepeda motor 156,84 menit. Tingkat turnover parkir mobil penumpang dan sepeda motor  tertinggi terjadi sebesar 2,45 dan sepeda motor sebesar 3,14.
(RE)CONSTITUTION OF THE MATHEMATICS TEACHER’S PROFESSIONAL PRACTICE
Authors: Oliveira Rossa Eduardo Pereira de , Goldoni Estevam Everton José
Published: September 2022

Este estudo bibliográfico tem como objetivo investigar aspectos influenciadores na constituição e modificação da prática do professor que ensina matemática. Com a realização de duas buscas no Portal de Periódicos da Capes, uma com os termos futuro professor e matemática e outra com prática professor e matemática, foram selecionados 24 artigos cuja análise de palavras-chaves e os objetivos originaram indutivamente três temáticas: i) Formação inicial e continuada de professores; ii) Ambientes colaborativos; e iii) Recursos didáticos e tecnológicos. Os resultados sugerem que ambientes colaborativos, nos quais professores e futuros professores podem interagir e compartilhar conhecimentos, crenças e experiências, compõem a essência dos processos de constituição e mudança da prática do professor. Conclui-se, assim, que ações colaborativas devem ser promovidas na formação inicial e continuada de professores que ensinam matemática, porque permitem repensar aspectos da prática docente e o próprio sentido da matemática, em uma perspectiva social de aprendizagem profissional docente.
O IMPACTO DO USO DO SMARTPHONE NA EDUCAÇÃO ESCOLAR: UMA REVISÃO SISTEMÁTICA
Authors: Rodrigues de Jesus Janile Silva , Souza de Jesus Bruno
Published: September 2022

Por permitir a interação com diversas pessoas, aplicativos, mensagens e informações ao mesmo tempo, o uso do smartphone cresceu muito nas últimas décadas e, apesar de o seu maior uso ser para troca de mensagens, mais recentemente, tem sido utilizado para cunho educacional. Assim, o objetivo desta revisão sistemática foi compreender como se dá a utilização dos smartphones em ambientes formativos formais. Foram analisados quatro bancos de dados, entre o ano de 2015 até o mês Junho de 2021, artigos experimentais e pesquisas que contêm as palavras ‘educação’ e ‘smartphone’ no título e que abordam sua aplicação em ambiente escolar/universitário. Os resultados demonstram que este dispositivo móvel tem sido bem aceito pelos estudantes e que ele tem sido uma ferramenta motivacional para estimular os alunos a participarem das aulas, contudo, seu uso precisa ser feito com bastante cuidado e estratégia para não ser ele mesmo o algoz do aprendizado.
OFICINAS PEDAGÓGICAS COMO ESTRATÉGIA DE ENSINO PARA FORMAÇÃO INICIAL DE ESTUDANTES BOLSISTAS/PIBID DO CURSO DE PEDAGOGIA
Authors: Vasconcelos de Almeida Laura Isabel Marques , Sampaio Figueiredo Helenara Regina , Soares Ferreira Josélia Souza , Carvalho Mendes Vanilda
Published: September 2022

O artigo destaca a pesquisa desenvolvida no estágio de Pós-Doutoramento que objetivou contribuir com a formação inicial dos estudantes de Pedagogia, bolsistas do Programa Institucional de Bolsas de Iniciação Científica (PIBID), com ênfase nas estratégias para o ensino dos conteúdos de Matemática nos Anos Iniciais. Com abordagem qualitativa, o estudo foi desenvolvido por meio de oficinas pedagógicas realizadas em parceria com profissionais licenciados em Matemática e Pedagogia, visando subsidiá-los no processo de ensino e aprendizagem, atuando diretamente na formação de futuros profissionais e com a intenção de auxiliá-los em sala de aula. Os resultados apontam deficiências em relação aos conteúdos matemáticos que envolvem noções básicas de operações e ausência da compreensão de conceitos para realizar as atividades propostas. Outro destaque refere-se às tecnologias digitais que neste contexto foram destaque na formação inicial como uma ferramenta necessária e articulada ao fazer pedagógico que tem exigido dos profissionais da educação novos métodos e estratégias de ensino a fim de alcançar os alunos e consolidar a prática pedagógica no ensino híbrido de forma dinâmica e eficaz.
Student learning style in vocational higher education
Authors: Nasution Auliana , Ambiyar Ambiyar , Simatupang Wakhinuddin
Published: September 2022

When student learning styles are known, teaching can be designed according to student interests through teaching strategies, teaching methods and techniques, and selecting and applying the necessary teaching tools. This research aims to describe vocational students' learning styles using Forster learning styles and investigate the relationship between these learning styles and mathematics learning achievement. Researchers analyzed vocational students' mathematics learning styles using the "How Do I Learn?" developed by Forster. By using a screening model and quantitative research methods, data collected. The collected data from the instrument containing questions related to the student's mathematics learning style are then processed using SPSS, analyzed using descriptive statistics and one-way analysis of variance (ANOVA). Descriptive statistics were applied to view participant demographics and an overview of each learning style score, while one-way analysis of variance (ANOVA) was conducted to assess differences in mathematics learning styles among students based on mathematics scores. The results showed no relationship found between reflective, curious, diligent, and user learning styles using the questionnaire developed by Foster and the students' mathematics scores.
Performance measurement using balance scorecard leading to strategy formulation: A case study in water company
Authors: Milana Milana , Wirdianto Eri , Bronto Adi Alexie Herryandie
Published: September 2022

Organization goals could be achieved by translating vision and mission into strategy. The strategy should be carefully formulated to direct the operation plans to work in harmony to achieve the goal. This research aims to show how the strategy is formulated based on the performance measurement result. The performance indicators are generated using the Balanced Scorecard approach with its four perspectives; financial, customer, internal business process, and learning and growth. Once these indicators and their benchmarks are defined, performance measurement is carried out. The performance measurement result is then input into a Strength-Weakness-Opportunity-Threat (SWOT) matrix. This approach proved that it could help the company review its existing strategy achievements and competitive position. Furthermore, the SWOT analysis proposes some potential actions taken by the company, which fall on Offensive, Defensive, Adjust, and Survive strategies.
Tensile strength of welded joints in low carbon steel using metal inert gas (MIG) welding
Authors: Nurdin Hendri , Purwantono Purwantono , Umurani Khairul
Published: September 2022

The development of technology that has penetrated the industrial sector is very rapid. Many industrial fields apply the use of MIG (Metal Inert Gas) welding for various jobs in steel construction, especially mild carbon steel. MIG welding has good welding results and fast welding time efficiency. The purpose of this study is to analyze the tensile strength of welded joints on low carbon steel using MIG welding. The experimental method used in this study is to perform MIG welding on low-carbon steel plate profiles. The welded carbon steel is used as a test specimen and is formed according to the ASTM E8-M standard. Tensile testing is performed using a Shimadzu UH-300 kN type tensile testing machine. From this study, the tensile strength value of the test specimen welded by MIG (Metal Inert Gas) welding is higher than the tensile strength of the parent metal (low carbon steel), so this shows the strength of the weld joint. The average value of tensile strength on the test specimen is (σ) 507.40 N/mm2 and average strain (ɛ) 3.63%. The MIG welding process, between the base metal and filler metal with different chemical compositions, can cause mixing and a dilution effect of two compositions.
The Development of automatic melinjo puncher machine using pneumatics pressure
Authors: Hendriko Hendriko , Lafebri Alfiandis , Rahmawaty Made , Tianur Tianur
Published: September 2022

Melinjo chip is one of Indonesia’s facourite food. Melinjo chip is not only marketed in Indonesia, but they have been exported to various countries including Netherlands, United State of America, and Middle East. Mostly melinjo chips are produced in the traditional way by home industry and MSMEs.  The existing machines to produce melinjo chips are not operated fully automatically; hence they still require significant operator involvement. The machine developed in this study uses a pneumatics pressure as power driver. Pneumatics cylinders are used to push the melinjo seeds onto the flattening base, and to move the puncher rod during flattening process. The developed automatic melinjo punching machine has been tested. The tests were carried out to determine the parameters used for programming the machine, sucah as punching time and pneumatic presure, and for checking the capacity of the machine. The test results show that the most effective punching time is 5 seconds at pressure between 5-7 bar. In 5 seconds, the machine can change melinjo seed into chips shape with thickness in between 1,20-1,45 mm. The capacity of the machine in processing melinjo has also been tested. The results showed that this machine can process 528 melinjo into chips shape melinjo per hour.
Analysis of riser variations in recycled aluminum sand casting on hardness values
Authors: Abadi Zainal , Kurniawan Andre , Arafat Andril , Abdillah Nur Ichsan , Senthot Daffa Raihan
Published: September 2022

Abstract  In this study, we will discuss the process of casting used aluminum metal. Used aluminum is one of the industrial wastes that can be converted into products using the casting method. This study aims to obtain a good casting material with good hardness values ​​and minimal defects. The research will focus on the results of castings by analyzing the visuals and hardness values ​​of the specimens. The research design is a pre-experimental type of One-Shot Case Study by conducting treatments whose results will be directly observed and analyzed descriptively. The treatment given is to increase the number of risers in recycled aluminum castings. Variations in the number of risers are 1 riser, 2 riser, and 3 riser. Each variation has 3 specimens, so there are 9 specimens in the study. The data from the test results contained a fairly large porosity value for each riser variation. The hardness value that has been tested using the Rockwell hardness tester obtained the highest hardness value occurs in the 2 riser variation, namely 27.69 HRA and the lowest hardness value occurs in the 3 riser variation, namely 21.56 HRA. Thus, for casting used aluminum with a casting pattern as in this study, it is best to use 2 risers.
Foreshock and aftershock earthquakes characteristic for subduction (Case study: Aceh earthquake in 2004 and Tohoku earthquake, Japan 2011)
Authors: Putra Rusnardi Rahmat , Atmojo Asri
Published: September 2022

Gempa yang terjadi di Aceh 2004  dengan kekuatan M 8,8 - 9,3 terletak pada latitude 3,295 dan longitude 95,982  dan Tohoku, Jepang dengan kekuatan M 9,0 terletak pada episentrum latitude 38,29 dan longitude 142,373. Secara mekanisme kedua gempa tersebut memiliki kesamaan yaitu pusat gempa sama-sama berada di subduction dengan arah pergerakan plat yang sama. Penelitian ini bertujuan untuk mengetahui distribusi kejadian gempa sebelum dan sesudah main shock atau gempa utama. Pengumpulan data kejadian gempa dikelompokan berdasarkan waktu kejadian,  radius, dan magnitudo, data gempa diperoleh dari database USGS dan BMKG.  Jumlah gempa sebelum dalam waktu kurang dari dua tahun pada radius 150 km dengan kekuatan M > 4 di Aceh terjadi sebanyak 12 gempa, hasil tersebut lebih rendah dibandingkan dengan gempa di Tohoku yang terjadi sebanyak 129 gempa. Jumlah gempa susulan di Aceh dalam kurun waktu dua tahun pada radius 150 km dengan kekuatan M > 4 terjadi sebanyak 119, hasil tersebut lebih rendah dibandingkan dengan gempa di Tohoku yang terjadi sebanyak 1576 gempa.
Evaluasi Displacement Horizontal Pasar Raya Padang Blok IV Berdasarkan Gaya Gempa Pada SNI-03-1732-2019
Authors: Maulana Majid , Juliafad Eka
Published: September 2022

Pasar Raya Padang Market blok IV was built in 2016  as an resisting earthquake building based on  SNI-1726-2012. The building has a building dilatation with a distance of 1 cm. The purpose of this study was to evaluate the dilatation distance of the Raya Padang Blok IV market building based on the seismic forces required in SNI-1726-2019.The evaluation method used in this research is numerical analysis method by using non-linier pushover over analysis. The numerical model used 3D model with the input material and the earthquake loading according to the proposed design and the response spctrum from SNI-1726-2019. This research evaluate overall structural performance of the buildings based on ATC-40. The results of the pushover analysis of the Raya Padang Blok IV Market building are the maximum displacement of the building of 9.936 mm, the allowable displacement is 320 mm, and the shear force to occur is 1409.094 KN, while the design shear force is 1508.3265. The results of this analysis conclude that the existing dilatation distance in the existing building meet the minimum requirement need based on this study. Building performance level reachs Immidiate Occupancy Level which means the building can be functioned immideately as the eartquake ends.
The Reason South Korea Approved The Placement of A High Altitude Area Defense (THAAD) Terminal System in 2016
Authors: Inthaly Anouphone , Risdhianto Agung , Sarjito Aris
Published: September 2022

The United States counts South Korea as one of its most significant allies. Relations between the two countries began when the US and South Korea became military allies in the early 1950s, with the US promising to assist South Korea in defending itself against any North Korean assault. Since 2014, the US has attempted to include South Korea in the East Asia region's anti-missile defense system, but it has always been refused. There are several causes for this, including disagreements among South Koreans, relations with China, and complaints from neighboring countries such as China, North Korea, and Russia. South Korea, on the other hand, stated on July 8, 2016, that the United States would be placed in a special category. However, on July 8, 2016, South Korea stated that the Terminal High Altitude Area Defense (THAAD) anti-missile defense system from the United States would be stationed in the country. This oddity piqued the writer's interest, prompting him to investigate the reasons behind South Korea's approval of THAAD placement in 2016. This research is expected to have an impact on decision-makers in choosing a defense strategy that reduces the risk of security dilemmas as has happened in South Korea.
Effectiveness of the Inquiry-Based Method in English Language Teaching of Ukrainian University Students Through Technology-Enabled Learning
Authors: Stepanechko Oksana , Kozub Liubov
Published: September 2022

The requirements of the time and significant changes in the educational system with emphasis on distant learning due to the Covid-19 pandemic force teachers to reconsider methods, approaches, techniques, and tools in foreign language teaching to ensure the effectiveness of the learning process. This study describes the implementation of the inquiry-based method in the process of English language acquisition by Ukrainian university students specializing in cybernetics and information technology. It aims to determine the effectiveness of inquiry-based learning in developing Ukrainian university students’ comprehension and communication skills in professional English through technology-enabled learning. The main research question is to investigate the benefits and challenges of inquiry-based learning for Ukrainian university students to ensure impactful results. The methodology presupposes activities that encourage the independent and collaborative acquisition of the material, increase learners’ intrinsic motivation, enhance communicative and digital skills, and provoke critical thinking and meaningful learning. The teacher becomes a facilitator and organizer directing students’ learning process, fostering their active thinking and interest. It contributes to their better comprehension and meaningful study. The research findings proved the undeniable benefit of the inquiry-based method for university students as it develops their curiosity, inspires deeper understanding and learning, and motivates them to make discoveries and achievements
DSC Assessment on Curing Degree of Micron-scaled Adhesive Layer in Lamination-pressed Flexible Printed Circuit Panels
Authors: Ern Kok Hoi , Lau Kok-Tee , Rosli Nur Hazirah
Published: September 2022

Continuous monitoring and optimisation of the lamination process are critical in negating flexible printed circuit (FPC) delamination risk during operation. The main QC inspection criterion of the lamination adhesive’s curing degree is adhesive thickness. However, this method is prone to measurement error due to poor microscopy image definition and the inspector’s measurement parallax error. The feasibility of using thermal characterisation to measure the difference in curing degrees of micron-scaled adhesive layer of laminated FPC was investigated. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used according to IPC standards. Polyimide-epoxy adhesive coverlays were laminated onto both sides of FPC at 120 kgf/cm2 pressure and 180 °C temperature for 120 s. Then, the coverlays were subjected to oven curing at 150 °C for 60 min. The DSC detected a small difference in the curing degree of adhesive layers in the two cured FPC laminated in different laminating-press openings (T1 and T2). T2 had a glass transition temperature (Tg) of 106.5 °C, which was higher than that for T1 (105 °C), thereby suggesting that the former had a higher curing degree than the latter. This result was consistent with the adhesive thickness measurement result of the DSC samples. The adhesive thickness of T2 was smaller (30.97 µm) than that of the T1 (31.76 µm). T2 had a higher curing degree than T1 because of the larger shrinkage percentage. In comparison with DSC, TGA was unable to detect the curing degree difference between the samples because of the undetected weight loss resulting from the adhesive curing.
Development and Testing of a Turning Process Monitoring System using Acoustic Emission
Authors: Ninomiya Keiichi , Yoshida Shun , Okita Kenji , Koga Toshihiko , Oshima Shuzo
Published: September 2022

Studies on in-process measurement have suggested techniques for sensing tool wear and machine status in a machining center and turning center, for example by measuring cutting resistance. However, there appear to be no reports of effective uses of machine sensing in practical machine tools, perhaps due to problems such as limitations on the number and density of sensors and the possibility that attaching sensors may affect machine rigidity and thus processing quality. The purpose of this research is to develop a system that can monitor the state of the cutting process and maintain it in a normal or optimal state at all times, based on the acoustic emission (AE) method. To realize the development of such a system, it is very important to qualitatively and quantitatively evaluate the tool wear. This report describes a tool wear experiment that collected AE signals, cutting force data, and high-speed camera images during metal turning. The collected basic data are comprehensively evaluated and examined to determine the effectiveness of in-process measurement by the AE method. The results suggest that evaluating various AE parameters obtained from the AE original waveform is an effective parameter for monitoring tool wear and cutting conditions that affect product quality. The findings from the basic data obtained in this study were found to be useful information for the practical application of in-process measurement by the AE method using machine learning methods.
Design of Power Device Sizing and Integration for Solar-Powered Aircraft Application
Authors: Danjuma Safyanu Bashir , Omar Zamri , Abdullah Mohd Noor
Published: September 2022

The power device constitutes the PV cell, rechargeable battery, and maximum power point tracker. Solar aircraft lack proper power device sizing to provide adequate energy to sustain low and high altitude and long endurance flight. This paper conducts the power device sizing and integration for solar-powered aircraft applications (Unmanned Aerial Vehicle). The solar radiation model, the aerodynamic model, the energy and mass balance model, and the adopted aircraft configuration were used to determine the power device sizing, integration, and application. The input variables were aircraft mass 3 kg, wingspan 3.2 m, chord 0.3 m, aspect ratio 11.25, solar radiation 825 W/m2, lift coefficient 0.913, total drag coefficient 0.047, day time 12 hour, night time 12 hours, respectively. The input variables were incorporated into the MS Excel program to determine the output variables. The output variables are; the power required 10.92 W, the total electrical power 19.47 W, the total electrical energy 465.5 Wh, the daily solar energy 578.33 Wh, the solar cell area 0.62 m, the number of PV cell 32, and the number of the Rechargeable battery 74 respectively. The power device was developed with the PV cell Maxeon Gen III for high efficiency, the rechargeable battery sulfur-lithium battery for high energy density, and the Maximum power point tracker neural network algorithm for smart and efficient response. The PD sizing was validated with three existing designs. The validation results show that 20% reduction of the required number of PV cells and RB and a 30% increase in flight durations.
Narrativa fragmentaria y escritura diarística en la literatura española de la democracia
Authors: Luque Amo Álvaro
Published: September 2022

Este artículo tiene como objetivo analizar el carácter fragmentario del discurso que puede encontrarse en ciertos diarios personales del contexto español de la democracia. En estos diarios el fragmento condiciona la construcción de un relato literario y, al mismo tiempo, se vincula con la introducción de determinados formatos genéricos relacionados con la literatura ensayística. Este diálogo entre fragmento y relato hacen del diario literario uno de los textos más innovadores de la literatura española reciente, lo que se desarrollará en este trabajo a partir del análisis de los diarios de Trapiello, Jiménez Lozano, Freixas o Uriarte, entre otros.
«El esperpento durante la Guerra Civil: propaganda y revolución», de Álvaro López Fernández
Authors: Gómez Vegas Míriam
Published: September 2022

Reseña del libro El esperpento durante la Guerra Civil: propaganda y revolución (Madrid, Guillermo Escolar Editor, 2020), de Álvaro López Fernández.
«Narraciones ilustradas, ilustraciones narradas», de Delhy Tejero (ed. de Dolores Romero López)
Authors: Viñarás Carolina
Published: September 2022

Reseña del libro Narraciones ilustradas, ilustraciones narradas (Burgos, Instituto Castellano y Leonés de la Lengua, 2020), de Delhy Tejero (ed. de Dolores Romero López).
«Aquellos maravillosos años. La huella de los 90 en la cooltura contemporánea», de Nacho Escuín
Authors: Bagué Quílez Luis
Published: September 2022

Reseña del libro Aquellos maravillosos años. La huella de los 90 en la cooltura contemporánea (León-Valladolid, Universidad de León-Universidad de Valladolid, 2021), de Nacho Escuín.
Semblanza del jesuita Suárez: el doctor eximio y la ley natural
Authors: Romero García Ricardo
Published: September 2022

Ilustre jesuita nacido a mediados del Siglo de Oro Español en Granada, que enseñó Teología en Segovia, Valladolid, Ávila e incluso Roma, donde contó entre sus oyentes, con el Sumo Pontífice. Tras volver a tierras castellanas, Felipe II logró que aceptara una cátedra en la Universidad de Coimbra. La sabiduría de Suárez fue requerida por la Santa Sede en diversas ocasiones, (la rebelión de la ciudad de Venecia, o la defensa de la Fe Católica frente al anglicanismo representado por Jacobo I de Inglaterra, entre otros). Suárez consideraba que la ley eterna se aplicaba y manifestaba en el ser humano mediante la ley natural, que dicta lo que es bueno o malo, con independencia de cualquier voluntad superior.
¿Hay lugar para lo visual?
Authors: Panfili Marina
Published: September 2022

La historia del arte ha revisado y redefinido su objeto de estudio gracias a las críticas desplegadas desde distintos marcos teóricos y militancias, que fueron señalando las exclusiones del relato canónico. Si bien resulta claro el desafío de las historias del arte críticas a nivel conceptual, no siempre se hace evidente la necesidad de inventar tecnologías narrativas que contemplen nuevas materialidades y modos de funcionamiento de las visualidades. En este artículo se revisan algunas operaciones sobre y con las imágenes en libros que narran historias del arte.