bluuebunny/crossref_metadata_2025 huggingface dataset:
A utilização das metodologias ativas no ensino da matemática
Authors: Silva Joel Figueiredo da , Colares Fernando , Dias Gustavo Nogueira , Reis Cássio Pinho dos , Souza Junior José Carlos Barros de , Gonçalves Rosiane Ferreira , Rocha Herson Oliveira da , Silva Junior Ademir Ferreira , Vogado Gilberto Emanoel Reis , Silva Junior Washington Luiz Pedrosa da , Reis Nazaré Doriene de Melo , Barreto Wagner Davy Lucas , Beirão Antonio Thiago Madeira , Silva Katiane Pereira da
Published: May 2023

Este trabalho reflete a utilização de práticas pedagógicas que utilizem metodologias ativas, com uma inovação, que faz com que o aluno aprenda como protagonista do seu próprio aprendizado. Nesse processo de aprendizagem, permite que os alunos desenvolvam autoconfiança, autoestima e autonomia para aprender, escrevendo uma jornada escolar significativa e cada vez melhor. Para atingir esse objetivo, o professor precisa buscar transformar seu estudante em protagonista do processo, priorizando a qualidade do ensino. Este trabalho tem como objetivo investigar e analisar a potencialidade da metodologia da sala de aula invertida na aprendizagem matemática mediada por tecnologias digitais, com estudante do sétimo ano, 8º ano e 9º ano do ensino fundamental II, além da utilização da modalidade de ensino da sala de aula invertida aplicados em uma escola da rede municipal da cidade de Ananindeua-PA. Como resultado da pesquisa observamos que a aprendizagem em matemática, mediada por tecnologias digitais, torna o ritmo de desenvolvimento dos conteúdos mais acelerados com percepção mais ágil pelos discentes.
ОЦІНКА БРЕНДУ ПІДПРИЄМСТВА НА ОСНОВІ КОНКУРЕНТНОГО АНАЛІЗУ
Authors: Пустовгар Світлана , Муханова Тетяна
Published: May 2023

Оцінка бренду на основі конкурентного аналізу є надзвичайно важливою для сучасних організацій. Вона допомагає підтримувати актуальність і релевантність бренду в швидкозмінному бізнес-середовищі. Метою статті є удосконалення інструментарію оцінки бренду підприємства на основі конкурентного аналізу та його апробація на прикладі салону краси «PIED-DE-POUL». Дослідження передбачало використання методів бальної оцінки, аналізу для оцінки бренду підприємства. За результатами дослідження удосконалено інструментарій оцінювання бренду підприємства на основі бальної оцінки. Удосконалений інструментарій передбачав визначення груп факторів та показників для оцінки бренду підприємства з використанням моделі ідентичності бренду Д. Аакера та моделі М. Шеррінгтона; оцінювання відносної важливості показників та міри їх прояву на підприємствах; розрахунок зваженої оцінки, яка є показником конкурентоспроможності бренду. З використанням удосконаленого інструментарію визначено сильні та слабкі сторони в діяльності салону краси «PIED-DE-POUL» порівняно з конкурентами.
EIB Global: La nueva sucursal para canalizar la financiación del desarrollo del Banco Europeo de Inversiones
Authors: Garayo Orbe Isabel , Valle Muñoz Sonsoles , Suanzes Fernández de Salamanca Víctor
Published: May 2023

En 2022, el BEI creó una nueva sucursal del desarrollo, EIB Global. Si bien la sucursal no cuenta con personalidad jurídica propia ni ha supuesto de momento un cambio radical en la estrategia del banco, facilita una evolución progresiva hacia una organización más eficiente y con más visibilidad de la actividad exterior de la Unión Europea. Este artículo repasa brevemente los orígenes históricos de la actividad del BEI fuera de la UE, el debate sobre la Arquitectura Financiera Europea de Ayuda al Desarrollo, que llevó a la creación de EIB Global, la actividad que realiza esta sucursal, los medios con los que cuenta, el papel que juega en la acción exterior de la UE y las perspectivas.

EIB Global puede contribuir de forma relevante en los próximos años en el diseño y ejecución de una política de ayuda al desarrollo de la UE verdaderamente común, más eficiente, coherente, con visibilidad y alineada con los valores e intereses estratégicos de la UE.
Peningkatan Kualitas Pakan Ternak dengan Teknik Fermentasi pada Kelompok Usaha Ternak Kambing di Desa Patumbak I Deli Serdang
Authors: Fitrawaty Fitrawaty , Sipahutar Herbert , Siregar Alkhafi Maas , Harahap Mukti Hamjah , Panggabean Deo Demonta , Syah Dedy Husrizal
Published: May 2023

Kegiatan pengabdian kepada masyarakat dilakukan di desa Patumbak 1, kecamatan Patumbak, Kabupaten Deli Serdang. Kegiatan ini didasari oleh kendala yang dialami oleh kelompok peternak kambing dalam mengolah pakan ternak melalui fermentasi dengan memanfaatkan libah daun kelapa sawit dimana ternak tersebut kurang dapat mencerna pakan akibat tidak dapat mencerna lidi yang terikut dibuat sebagai pakan ternak permentasi. Kelompok yang beranggotakan 7 orang mempunyai ternak sebanyak 37 ekor kambing. Dengan pemberian pakan yang kurang baik, kelompok ini kurang baik dalam mengembangkan ternaknya baik secara kualitas maupun kuantitas. Tujuan dari kegiatan pengabdian ini untuk mengatasi kendala yang dihadapi oleh mitra dan meningkatkan manajemen usahanya melalui penerapan sistem pembukuan usaha. Metode yang dilakukan pendampingan,pembinaan dan penerapan teknologi tepat guna mesin pemisah lidi kelapa sawit dari daunnya sehingga daun yang diolah dapat dicerna oleh hewan lebih optimal dan tidak menyebabkan penyakit. Kegiatan pengabdian yang dilaksanakan kurun waktu bulan ini menghasilkan peningkatan kualitas pakan ternak mitra dengan diberikannya alat teknologi tepat guna mesin peraut lidi, serta menambah wawasan dan pengetahuan mitra dalam proses pengolahan pakan ternak fermentasi yang baik dengan berdampak pada peningkatan kuantitas dan kulitas ternak yang dikembangkan. Penerapan sistem pembukuan keuangan berdampak pada peningkatan manajemen usaha sehingga dapat meningkatkan nilai ekonomis usaha peternakannya.
Edukasi mengenalkan abjad menggunakan flashcard pada anak PAUD Mandiri desa Suka Negeri Kecamatan Banding Agung
Authors: Mawardah Mutia , Oktaviana Rina , Restika Restika
Published: May 2023

Keahlian memahami huruf hendaknya diterapkan kepada anak secepatnya disaat umur 0- 6 tahun karna pada masa ini anak sedang berada pada masa keemasan (golden age).  Salah satu nya pada siswa di PAUD Mandiri desa Suka Negeri yang mana memang baru masuk sekolah dan belum bisa mengenal huruf abjad A-Z. Pada kegiatan Kuliah Kerja Nyata Tematik ( KKN-T) ini penulis bertujuan untuk memberikan edukasi pengenalan abjad  menggunakan metode bermain sambil belajar dengan bantuan media flashcard  pada anak PAUD Mandiri Desa Suka Negeri. Kegiatan edukasi ini dilakukan di PAUD Mandiri yang di ikuti oleh 14 Orang siswa, yang dilakukan dalam 4 pertemuan sekaligus menyampaikan materi sehingga dari hasil program ini anak-anak PAUD Mandiri sudah bisa minimal mengenal huruf  vokal dengan baik. Luaran dari kegiatan ini diharapkan dapat membantu semangat belajar anak agar tidak bosan dengan metode pembelajaran yang lama, sehingga proses belajar dapat berjalan dengan baik.
Resistencias abiertas y encubiertas en el periodismo de Tijuana
Authors: Merchant Ley Diana Denisse , Reyna García Víctor Hugo
Published: May 2023

El objetivo de este artículo es analizar las resistencias abiertas y encubiertas de las y los periodistas. A partir de la tipología de la resistencia de Hollander y Einwohner, así como trabajo de campo en una de las capitales del periodismo mexicano, Tijuana, se examinan cuatro tipos de resistencias: 1) a las relaciones de deferencia, 2) al bloqueo de información, 3) a las cargas de trabajo, y 4) a la censura editorial. Estas estrategias se intercalan y permiten lo que las estructuras organizacionales con frecuencia impiden: un periodismo de investigación e impacto social.
Developing Human Potential
Authors: Matkin Gina , Headrick Jason , Sunderman Hannah
Published: May 2023

This Online Educational Resource textbook is intended to provide an overview and introduction of leadership through the lens of how students can develop and maximize their own interpersonal skills. Interpersonal skills are crucial to navigating the professional world and can help us to better understand ourselves. This textbook approaches interpersonal skills from a personal level and allows the reader to immerse themselves into activities and scholarship across topical areas. Through the text, learners can create their own Personal Leadership Philosophy and expand this into a Civic Leadership Philosophy to help them understand the impact leaders can have on their communities and workplaces. This text is freely available per the terms of the Creative Commons copyright. Links to digital PDF and ePUB file formats are provided but may not maintain intended page breaks or formatting.
About the Editors
Contributors
Foreword: History
Foreword: About the Title
I. Main Body
Introduction
1. How I See Myself
2. Defining My Personal Values
3. Defining my Vision & Setting Personal Goals
4. Communicating with Leadership Congruence
5. Nonverbal Communication & Active Listening in Small Groups
6. Developing Trust & Being Trustworthy
7. Perceptions are Only From My Point of View
8. Diversity & Inclusion
9. Meeting the Challenge of Effective Groups & Teams Membership
10. Engaging with Empathy
11. Managing Conflict Expectations
12. Leadership & Civic Engagement: Becoming the Change Maker

This book was originally conceptualized as a textbook for a class at the University of Nebraska – Lincoln called “Interpersonal Skills for Leadership.” A book by the same name was originally written in 1996, with a second edition published in 2005 by Dr. Susan Fritz and colleagues (Fritz et al., 1996, 2005). Since the text was up for a new edition, we met with Dr. Fritz, who is a strong supporter of Online Educational Resources (as well as all free or low-cost texts for students). Dr. Fritz graciously offered to write a part of the Foreward for this text and offered great feedback and advice (aka, wisdom). Two of the three authors of this chapter have worked with Dr. Fritz for many years as graduate students, as staff, and, eventually, as faculty. We are grateful for her support and mentoring over the years, including with this current project.
CHARACTERISTICS OF THE EDUCATIONAL COMPONENTS OF THE IMPLEMENTATION OF THE PhD PROGRAM IN THE SPECIALTY OF GEODESY AND LAND SURVEYING
Authors: Chang Liu , Mamonov K. , Kovalenko L.
Published: May 2023

It has been proven that the development and implementation of educational programs that shape the educational space and the possibilities of ensuring territorial development at various levels are of particular importance for training a qualified specialist. In this context, the characterization of the educational components of the implementation of PhD programs in geodesy and land management is a relevant and timely issue. The implementation of the PhD educational program is aimed at training a highly qualified, competitive specialist in the field of geodesy and land management by deepening and improving theoretical knowledge and practical skills, professional skills in the field of architecture and construction in the field of geodesy and land management, improving language and philosophical competences, forming the ability to conduct research and creation of modern systems of geospatial support and land use for the development of cities and regions. As a result of the study, the educational components of the implementation of the PhD program in geodesy and land management were characterized. Within the framework of the educational and scientific program, it is proposed to additionally characterize the components of the territorial development of land use in the regions. In particular, geospatial components are defined, where cartographic support, directions and possibilities of application of geoinformation systems and technologies are characterized, territorial, functional, socio-economic factors are distinguished. Urban planning, investment and ecological factors of territorial development of land use in the region are characterized. The educational components of the implementation of the PhD program in geodesy and land management are characterized. Competences are defined, which allows for the formation of a systematic approach to the training of specialists. It should be noted that the implementation of the educational program is formed through a range of issues related to the training of highly qualified specialists who are able to formulate and solve complex scientific and practical tasks in the field of geodesy and land management and implement the results of scientific research. Features of the application of the program include the possibility of taking into account the directions and features of territorial development and the efficiency of land use at the regional level. Mastering the presented program allows you to form an educational environment that takes into account the possibilities of using modern geodetic and geospatial tools, the provisions of the theoretical and methodological platform, and is aimed at ensuring the territorial development of the region and increasing the efficiency of land use.
Keywords: educational components, PhD, educational programs, geodesy and land management, territorial development of the region, land use, geodetic and geospatial support.
AVOIDANCE OF OCCUPATIONAL RISKS OF WORKERS AND MAN-MADE EMERGENCY SITUATIONS DURING CLEANING OF METALLURGICAL EMISSIONS
Authors: Petryshchev A. , Semiriahyn S. , Smirnov Yu.
Published: May 2023

The article highlights the problem of increasing the level of flue gas filtration at industrial enterprises using the example of the metallurgical industry with the determination of technologically possible ways to increase the level of sulfur removal from gaseous emissions into the atmosphere. This can prevent occupational risks for employees of enterprises due to the reduction of the harmful effects of the components of industrial emissions on occupational health. Increasing the level of understanding of the impact of technological parameters on the target result opens up opportunities for organizing a more balanced and stable flue gas cleaning process. This, in turn, increases the ability of factories to comply with sanitary standards and prevent emergencies of a man-made nature when the maximum permissible concentrations of harmful components in gaseous emissions are exceeded. Solving this problem is possible when using mathematical modeling based on determining the relationship between the level of sulfur removal and the technological indicators of the desulfurization process. Regression analysis was used as a method for building a mathematical model. At the same time, the construction of a multifactorial mathematical model was carried out, based on the industrial parameters of the production of the metallurgical enterprise. The visualization of the obtained results is carried out by presenting the constructed mathematical model as three-dimensional graphs in the form of surfaces with the involvement of some of the technological indicators. The obtained results make it possible to optimize the production indicators to increase the efficiency of the desulfurization of gaseous emissions of the industrial enterprise. At the same time, additional aspects of the relationship between filtration indicators and the degree of purification from harmful components in flue gases are revealed, which allows to establish the most favorable process conditions and can be used not only in the metallurgical industry, but also in the thermal power industry.
Keywords: industrial gases, desulfurization, labor hygiene, risks, occupational diseases, environmental safety.
Effects of thermotherapy and meristem culture techniques on macro and micronutrients content in elephant grass cultivars
Authors: Karasawa Marines Marli Gniech , Tavares Valdir Botega , Pinto José Cardoso , Lédo Francisco José Silva , Pereira Antônio Vander , Pinto José Eduardo Brasil Pereira
Published: May 2023

Elephant grass is a tropical forage crop highly used in dairy cattle production, in Brazil. It has been getting special attention, because of its bioenergy potential, medicinal properties, and bioremediation profile. The aim of the present study is to investigate the effects of thermotherapy based on clonal cleaning methods and meristem culture on the mineral content of elephant grass (Cenchrus purpureus (Schumach.) Morrone). Cultivars “Mineiro”, “Taiwan A-147” and “Pioneiro” were subjected to the following methods: thermotherapy (T) combined to meristem culture (MC), meristem culture and mature stems (control). The experiment assessed the mineral contents of phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and sulfur (S) at three cuttings, which were performed every 60 days, for 180 days. There was lack of effects from these methods on the mineral content of approximately 66% of the carried out assessments, standing out unanimity for all cultivars, methods, and most of the cuts. T+MC was the only method showing positive effect on P and Ca content, in all cuts, in the cultivars Taiwan A-147 and Pioneiro, respectively. There was clear negative effect of cleaning methods on P and Ca content, in all cuts, for cultivar Mineiro, and on Mg, for cultivar Taiwan A-147. These results, along with the positive effects observed in vegetative and nutritional parameters shown in other articles published in this Journal, show that the clonal cleaning methods are strongly recommended for cultivars with more than 15 years of ripe stem propagation.
External Auditors' Impact on Corporate Governance of Unlisted Firms: A Developing Country Perspective
Authors: Anaman Prince Dacosta , Ahmed Ibrahim Anyass , Appiah-Oware Frank , Somiah-Quaw Frank
Published: May 2023

Purpose: The purpose of this study is to examine the impact of external auditors on the corporate governance of unlisted firms in Ghana.Design/Methodology: The study adopts a quantitative research survey design approach. Closed-ended questionnaires were distributed to 485 respondents using the purposive and convenience sampling method. Inferential statistics were conducted on the data collected using IBM SPSS Statistic v23.Findings: The study found that the presence of boards, familiarity with corporate governance codes, and adherence to the code of conduct are prevalent in unlisted firms in Ghana. Also, the study found that the role external auditors play in unlisted firms in Ghana has a positive and significant impact on corporate governance.Practical Implications to Business or key stakeholders: The findings of the study highlight the importance of establishing effective boards, adhering to corporate governance codes, and actively engaging external auditors to strengthen governance practices. Stakeholder engagement, training, risk management, and policy enhancements are also crucial in fostering transparency, accountability, and sustainable business growth. Implementing these implications can enhance corporate governance, build stakeholder trust, and promote long-term organizational success.
Clinical Review of Commercially-Available Anti-Snoring Devices
Authors: Lee Ki-Il , Choi Ji Ho
Published: May 2023

Snoring is a common issue that negatively affects sleep quality. Generally, simple snorers without sleep apnea may be managed with various therapeutic options such as behavioral treatments, mandibular advancement devices or surgeries, while more complicated snorers with moderate to severe sleep apnea may be managed with positive airway pressure. Recently, commercially-available devices have been widely implemented to improve snoring by widening the nasal airway or preventing mouth breathing. Nasal dilator strips are typically used as external nasal dilators, while internal nasal dilators include nasal stents, nasal clips, and nasal stimulators. Chin straps and mouth tape can be used to improve adherence to positive airway pressure, as well as to manage simple snorers with mouth breathing. However, there is a scarcity of information in literature with regard to the clinical role of these devices. Therefore, physicians should carefully consider whether these commercially-available devices can be a viable alternative management option for snoring patients. Herein, we provide literature reviews of clinically-available devices for snorers with their indication, effectiveness, and safety.
Common Drainage Pathway From Bilateral Frontal Sinuses: Lessons From 2 Cases
Authors: Cho Ki Ju , Lee Sang Yun , Jeon Yung Jin , Kim Sang-Wook
Published: May 2023

Primary pneumatization of the frontal bone occurs in the first year of life, but further pneumatization continues until 18 years of age. Elongation of the ethmoidal infundibulum and frontal recess, or upwards migration of the anterior ethmoidal cells has been proposed as a mechanism of frontal sinus development. The frontal sinus drainage pathway is displaced in the anterior or posterior direction depending on the pneumatization pattern of the frontoethmoidal cells. Also, frontal sinuses can be connected to the infundibulum or directly to the middle meatus depending on the superior attachment pattern of the uncinate process. Bilateral frontal sinuses are separated by their bony septum, and thus have their own drainage pathways. Contrary to this general rule, we experienced two cases of frontal sinuses that were connected to each other, showing a single drainage pathway from both frontal sinuses. We report these two cases along with a literature review.
A bibliometric study of carbon neutrality: 2001-2022
Authors: Chung Andy W L , To Wai Ming
Published: May 2023

Carbon neutrality refers to a state of net-zero carbon emissions that can be achieved by balancing the discharge and removal of carbon compounds into and from the atmosphere. It is a crucial step to avoid the catastrophic consequences of climate change. This study aims to reveal the development of carbon neutrality research using a bibliometric approach. Using a keyword search of carbon neutrality (or carbon neutral), 8,071 publications including journal articles, review articles, conference papers, book chapters, and books were identified from 2001 to 2022 (up to 8 October) from Scopus. Data were analysed using Scopus bibliometric tools and VOSviewer. The results show that the number of carbon neutrality publications has increased exponentially in the past two years and Chinese researchers have produced most of the publications, followed by U.S. researchers. Co-occurrence of keywords analysis showed that four clusters of carbon neutrality research have emerged, namely carbon neutrals using biofuels and hydrogen; carbon neutralities focusing on energy efficiency, energy utilisation and renewable energies; carbon neutrality aiming to achieve sustainable development, and greenhouse gas emissions from coal. The findings of the study suggest that future research should focus on biomass and biofuels as they are key reservoirs of carbon.
Assistência farmacêutica em mulheres grávidas com Diabetes mellitus gestacional
Authors: Fernandes Wenesnaira Gomes de Sousa , Reis Joseane Pereira , Oliveira Marcos Jonnes Silva , Fonseca Maria Eduarda , Maciel Fernanda Duarte , Carvalho Dalma Soares de , Silva Regiane Ferreira da , Oliveira Valéria Maciel Cordeiro de
Published: May 2023

Introdução: De acordo com a Organização Mundial da Saúde o Diabetes Mellitus Gestacional é disfunção metabólica pelo qual há uma intolerância a carboidratos de gravidade variável. Diversos estudos têm apontado que essa disfunção é muito comum no período gestacional, atingindo cerca de 3 a 25% das gestantes. Objetivo: Analisar os principais aspectos envolvendo a mellitus gestacional e identificar o papel do profissional de farmácia nesse caso. Metodologia: Este trabalho trata-se de um estudo descritivo e exploratório embasado em revisão de literatura, realizando pesquisa e recolhimento de dados científicos organizados por meio de apuração de artigos associados com o objeto do estudo. Resultados Esperados: O DMG apresenta riscos para a mãe, feto e o recém-nascido, geralmente, é diagnosticado no 2º ou 3º trimestres. Pode ser transitória ou persistir após o parto, caracterizando-se como importante fator de risco para o desenvolvimento de Diabetes Mellitus tipo 2. A prevalência varia de 1% a 14%, dependendo da população estudada e dos critérios diagnósticos utilizados. Considerações finais: A metformina que é um remédio hipoglicemiante oral indicado principalmente para o tratamento da diabetes mellitus gestacional, age reduzindo os níveis de açúcar no sangue, para níveis mais próximos do normal. O cuidado farmacêutico promove a recuperação da saúde integralizada com o uso racional de medicamentos a fim de melhorar a qualidade de vida do paciente, em relação a medidas não farmacológicas, o farmacêutico durante a Atenção Primária (AT) à gestante pode orientar sobre ações em saúde que visem melhorar a qualidade de vida da paciente.
Lophomonas blattarum-like organism in bronchoalveolar lavage from a pneumonia patient: current diagnostic scheme and polymerase chain reaction can lead to false-positive results
Authors: Lee Moses , Hwang Sang Mee , Park Jong Sun , Park Jae Hyeon , Park Jeong Su
Published: May 2023

Lophomonas blattarum is an anaerobic protozoan living in the intestine of cockroaches and house dust mites, with ultramicroscopic characteristics such as the presence of a parabasal body, axial filament, and absence of mitochondria. More than 200 cases of Lophomonas infection of the respiratory tract have been reported worldwide. However, the current diagnosis of such infection depends only on light microscopic morphological findings from respiratory secretions. In this study, we attempted to provide more robust evidence of protozoal infection in an immunocompromised patient with atypical pneumonia, positive for Lophomonas-like protozoal cell forms. A direct search of bronchoalveolar lavage fluid via polymerase chain reaction (PCR), transmission electron microscopy (TEM), and metagenomic next-generation sequencing did not prove the presence of protozoal infection. PCR results were not validated with sufficient rigor, while de novo assembly and taxonomic classification results did not confirm the presence of an unidentified pathogen. The TEM results implied that such protozoal forms in light microscopy are actually non-detached ciliated epithelial cells. After ruling out infectious causes, the patient’s final diagnosis was drug-induced pneumonitis. These findings underscore the lack of validation in the previously utilized diagnostic methods, and more evidence in the presence of L. blattarum is required to further prove its pathogenicity.
Photovoltaic Maksimum Power Point Tracking (MPPT) Berbasis Fuzzy Logic Kontroler Pada Konverter Buck
Authors: Sherinadhifa Faradilla , Radianto Donny , Herwandi Herwandi
Published: May 2023

Dengan bertambahnya kebutuhan fosil sebagai energi utama menjadi pendorong digunakannya energi terbarukan sebagai solusi agar penggunaan bahan bakar fosil dapat berkurang. Salah satu sumber energi terbarukan yang memiliki potensi terbesar di Indonesia yaitu energi surya. Energi surya akan dikonversi menjadi energi listrik secara langsung dengan memanfaatkan modul photovoltaic. Modul photovoltaic memiliki kelemahan dalam memperoleh daya keluaran maksimum karena iradiasi maupun suhu yang diterimanya berubah-ubah. Maka dari itu, photovoltaic membutuhkan sistem kontrol untuk menghasilkan daya maksimal yaitu dengan Maksimum Power Point Tracking (MPPT). Jurnal ini diimplementasikan menggunakan metode fuzzy logic kontroler sebagai sistem MPPT melalui mikrokontroler Arduino Uno R3 yang digunakan untuk membangkitkan sinyal PWM. Sistem MPPT akan terhubung ke DC-DC konverter buck untuk mendapatkan daya keluaran maksimal pada modul photovoltaic untuk proses pengisian aki. Dari hasil pengujian yang telah dilakukan, konverter buck mampu menurunkan tegangan keluaran setpoint sebesar 14V yang merupakan tegangan stabil untuk beban aki 12V 7Ah dengan metode fuzzy logic kontroler Mamdani yang menunjukkan kinerja baik. Proses pengecasan aki dilakukan selama 1 jam 10 menit dengan kondisi awal 11,7V hingga penuh sebesar 13,8V.
Implementasi Incremental Conductance Photovoltaic MPPT Pada Konverter Buck
Authors: Zeke Manurung Blasius Zuriel , Radianto Donny , Herwandi Herwandi
Published: May 2023

Photovoltaic menghasilkan daya yang didasarkan dengan kondisi cuaca dan juga intensitas cahaya yang diterimanya. Untuk menaikkan daya yang dikeluarkan oleh photovoltaic agar menyamai dengan kondisi optimalnya digunakanlah Maximum Power Point Tracker (MPPT) yang terdiri dari beberapa algoritma berbeda. Jurnal ini menggunakan metode Incremental Conductance yang terprogram pada sistem dengan menggunakan Arduino Uno R3. Mikrokontroler menyesuaikan DC-DC buck converter untuk mengekstraksi daya keluaran photovoltaic serta menyesuaikannya untuk pengisian aki. Penggunaan sensor arus dan sensor tegangan pada sistem ini diperlukan metode incremental conductance untuk mencari MPPT. Pembacaan sensor arus dan sensor tegangan dikirimkan ke mikrokontroler Arduino Uno R3 sebagai input yang nantinya akan diproses oleh mikrokontroler menjadi sinyal PWM yang digunakan untuk mengaktifkan konverter dc - dc berbasis pada konverter buck. Dari pengujian alat konverter buck dengan metode incremental conductance menunjukkan kinerja yang baik, dimana alat mampu menghasilkan tegangan output yang stabil pada kisaran setpoint 14V. Pengujian pengecasan aki berlangsung selama 2 jam 15 menit dari kondisi awal 10,7V hingga penuh 13,7V.
Penerapan Protokol Komunikasi ESP-Now pada Portable Traffic Light
Authors: Fajar Arofah Mohammad , Mandayatma Eka , Nurcahyo Sidik
Published: May 2023

Meningkatnya volume kendaraan dari tahun ke tahun menyebabkan lalu lintas ramai bahkan di areal perkampungan. Untuk membantu memberikan pengaturan lalu lintas maka dibuat sistem traffic light portable dengan modul tunggal LED P10 menggunakan komunikasi nirkabel antar traffic light satu dengan yang lain. Adapaun protocol komunikasi nirkabel yang digunakan adalah protocol komunikasi espnow. Komunikasi pada alat ini menggunakan prinsip komunikasi master-slave dimana salah satu traffic light berperan sebagai master dan traffic light lain berperan sebagai slave. Master mengirimkan sinyal kepada slave untuk menentukan urutan-urutan warna pada slave. Pengujian protocol komunikasi espnow menunjukkan jarak optimal hingga 25 m dengan halangan berupa case dari modul P10. Urutan dan durasi nyala lampu menunjukkan error rata rata 3% dari waktu setpoint fasa.
Navigasi Pergerakan Robot Berdasarkan Rekam Data Sensor Odometry
Authors: Maulana Wildan Arif , Winarno Totok , Siradjuddin Indrazno
Published: May 2023

Berkembangnya teknologi robotika yang sangat cepat dan pesat mengakibatkan peran robotika sangat berpengaruh dalam kehidupan manusia. Pada bidang industri, robot difungsikan salah satunya untuk memindahkan barang ke tempat yang sudah ditentukan. Pada penelitian mobile robot beroda ini menggunakan perekaman data menggunakan sensor odometry. Sensor odometry digunakan untuk memperkirakan perubahan posisi robot dari pergerakan aktuator yang digunakan. Menggunakan sensor rotary encoder yang digunakan untuk menghitung pergerakan mobile robot pada koordinat X dan Y pada proses perhitungan odometry. Untuk dapat bergerak ke titik yang sudah ditentukan menggunakan metode kontrol kinematik, dengan mengetahui posisi awal, memungkinkan robot bergerak menuju titik tujuan dan arah hadap robot dengan koordinat pergerakan yang diajarkan sebelumnya. Pada penelitian ini menggunakan pengujian secara realtime untuk parameter pengujiannya meliputi ketepatan titik tujuan, arah hadap akhir dan kecepatan mencapai tujuan. Dengan menggunakan metode kontrol Forward dan Invers Kinematics, robot dapat bergerak dari posisi awal menuju ke titik tujuan dengan tepat menggunakan tracking trajectory yang telah dibuat berdasarkan rekam data sensor odometry dengan rata-rata error posisi sebesar 0,083 meter dan error arah hadap sebesar 4,6°
Sistem Penyimpanan Energi Menggunakan Baterai Sel Sekunder Pada Photovoltaic
Authors: Utomo Mugi Satriyo , Nugrahanto Indrawan , Sungkono Sungkono
Published: May 2023

Pemanfaatan Pembangkit Listrik Tenaga Surya (PLTS) Off-Grid memerlukan baterai sebagai media penyimpanan energi yang dihasilkan dari modul photovoltaic (PV). Baterai perlu mendapat perhatian khusus karena kerusakannya disebabkan penggunaan yang tidak ideal dan baterai tidak dilengkapi sistem proteksi dan monitoring, yang dapat mengurangi performa dari baterai. Pada Skripsi ini dilakukan monitoring 2 jenis baterai sel sekunder yaitu Lead Acid 12 V dan Lithium 12 V untuk sistem PLTS off grid 100 Wp menggunakan metode kuantitatif, yaitu pengukuran SOC (State Of Charge) dengan metode modified Coulomb Counting. Sensor tegangan, sensor arus ACS712 digunakan untuk mengirimkan informasi mengenai kondisi baterai ke mikrokontroler Arduino uno R3 sebagai pengolah data. Pengukuran SOC dengan metode ini dilakukan dengan menjumlahkan muatan yang masuk atau muatan yang keluar dari baterai dalam kurun waktu tertentu. Perhitungan coulomb inilah yang nantinya didapatkan nilai SOC baterai. Dari pengujian yang telah dilakukan, alat mampu membaca nilai tegangan, arus, SOC dengan baik. Hasil pembacaan parameter ditampilkan pada LCD. Sistem proteksi akan aktif ketika baterai dalam kondisi tidak ideal, yaitu ketika SOC baterai bernilai 100% pada saat proses charging dan 20 persen saat proses discharging, sehingga baterai tidak mudah rusak.
Pemanfaatan Algoritma Faster R-CNN ResNet-101 Untuk Deteksi Potongan Tubuh Manusia
Authors: Hanun Nabilah , Sarosa Mochammad , Andrie Asmara Rosa
Published: May 2023

Deteksi potongan tubuh manusia adalah tugas yang sangat menantang. Deteksi potongan tubuh manusia dapat diterapkan dalam berbagai situasi seperti pencarian korban bencana alam, pencarian potongan tubuh yang tertutup dengan objek lain, korban kecelakaan, dan lain – lain sehingga dapat memudahkan para pengguna untuk mendeteksi potongan tubuh manusia. Potongan tubuh dalam penelitian ini dibedakan dalam dua kategori yaitu berdasarkan kelengkapan potongan tubuh manusia dan kelas yang dideteksi. Tujuan pada penelitian ini adalah untuk mengetahui kinerja Faster R-CNN dengan ResNet-101 dalam mendeteksi potongan tubuh manusia. Jumlah dataset yang digunakan sebanyak 100 citra gambar. Berdasarkan hasil penelitian, Faster R-CNN dengan ResNet-101 pada step 1000, 2000, dan 3000 menunjukkan bahwa hasil terbaik pada deteksi step 3000 dengan Precision 79,50%, Recall  68,80%, dan F1 score 73,76%. Pada penelitian ini, pemanfaatan algoritma Faster R-CNN dengan ResNet-101 mampu mendeteksi potongan tubuh Manusia namun kualitas piksel dan ketajaman pada citra gambar juga mempengaruhi hasil deteksi.
Perancangan Sistem Dual Tracker Untuk Mencari Kondisi Optimal Modul Photovoltaic
Authors: Fatimatus Zahroh Siti , Radianto Donny , Khairuddin Muhammad
Published: May 2023

Indonesia memiliki potensi energi surya sangat besar yaitu sekitar 4.8KWh/m2 atau sebanding dengan 112.000 GWp, akan tetapi yang sudah dimanfaatkan baru sekitar 10MWp. Maka dari itu energi surya merupakan energi alternatif yang banyak dikembangkan, karena jumlahnya yang tidak terbatas dan penggunaannya yang ramah lingkungan. Cahaya matahari dapat diubah menjadi energi listrik menggunakan sel surya atau photovoltaic. Pada umumnya sel surya atau photovoltaic yang terpasang hanya berorientasi ke satu arah saja, sehingga kurang optimal untuk menyerap cahaya matahari. Salah satu cara untuk mengoptimalkan penyerapan energi matahari pada photovoltaic adalah dengan selalu menempatkan bidang modul photovoltaic selalu tegak lurus dengan arah datangnya sinar matahari sehingga menyerap lebih banyak cahaya. Tujuan dari penelitian ini adalah membuat sistem dual tracker agar photovoltaic otomatis mengikuti arah datangnya cahaya matahari. Sistem dual tracker ini menggunakan sensor cahaya photodioda agar mampu bergerak mengikuti arah cahaya matahari dan dapat mencari kondisi optimal, sehingga daya output yang dihasilkan dapat maksimal. Dari pengujian sistem dual tracker ini menghasilkan sistem tracker yang mampu bergerak mengikuti cahaya matahari, dan mendeteksi kondisi optimal sesuai karakteristik photovoltaic. Selisih energi yang didapatkan dari pengujian sistem statis dan tracker sebesar 142Wh yang artinya dapat meningkatkan efisiensi energi sebesar 97% dari penggunaan statis terhadap tracker.
Desain kontrol adaptif L1 dengan band pass filter orde dua untuk pengendali vibrasi pada rotor helikopter
Authors: Gamar Farida , Kadir Rusdhianto Effendie Abdul , Jazidie Achmad
Published: May 2023

Vibrasi pada helikopter menjadi konsentrasi tersendiri untuk terus ditingkatkan penanganannya. Hal ini dikarenakan selain dapat menyebabkan kerusakan struktur badan helikopter jika vibrasi yang dihasilkan terlalu besar juga berpengaruh pada kenyamanan pilot dan penumpang. Sistem vibrasi pada helicopter terdiri dari baling-baling, rotor mount, dan suspensi dimana terdapat damper sebagai peredam. Pada penelitian ini, digunakan damper semi aktif yang variabelnya dikontrol dengan menggunakan kontrol adaptif L1 berbasis analisis Fourier dari vibrasi yang dihasilkan oleh rotor. Analisis Fourier digunakan untuk mencari frekuensi cutoff vibrasi yang digunakan untuk penalaan pada kontrol adaptif L1. Hasil rancangan band pass filter orde 2 pada sistem dapat memperbaiki respon percepatan hingga 72.52% pada rotor mount dan 65.94% badan helicopter dalam waktu 2 detik. Hasil rancangan juga dapat menangani kesalahan perpindahan sebesar 55.6% pada rotor mount dan 55.56% pada badan helikopter dalam waktu 2 detik. Perbaikan respon percepatan pada badan helicopter yang mencapai 0 m/s2 telah memenuhi rekomendasi NASA untuk minimal percepatan pada sistem vibrasi helikopter.

ABSTRACT

Vibration in helicopters is a separate concentration to continue to improve its handling. This is because, in addition to causing damage to the helicopter body structure if the vibration generated are too large, it also affects the comfort of pilot and passengers. The vibration system on the helicopter consists of propeller, rotor mount, and suspension where there are dampers as dampers. In this research, a semi-active damper is used whose variables are controlled using Fourier analysis-based L1 adaptive control of the vibrations generated by the rotor. Fourier analysis is used to find the cutoff frequency of vibration used for tuning the L1 adaptive control. The results of the second-order band pass filter design in the system can improve the acceleration response up to 72.52% on the rotor mount and 65.94% of the helicopter body within 2 seconds. The design results can also handle displacement errors of 55.6% on the rotor mount and 55.56% on the helicopter body within 2 seconds. The improvement of the acceleration response on the helicopter body which reaches 0 m/s2 has required NASA's recommendations for minimum acceleration in helicopter vibration systems.
Bioremediation of environmental wastes: the role of microorganisms
Authors: Ayilara Modupe S. , Babalola Olubukola O.
Published: May 2023

The growing rate of urbanization and industrialization has led to an increase in several types of pollution caused by the release of toxic chemicals to the environment. This is usually perpetuated by the manufacturing industry (e.g. detergent and dye), agricultural sectors (e.g. fertilizers and pesticides), mining industry (e.g. cyanide and sulphuric acid) and construction companies (e.g. cement and metals). These pollutants have adverse effects on the health of plants, animals, and humans. They also lead to the destruction of the microbial population in both aquatic and the terrestrial regions, and hence, have necessitated the need for remediation. Although different remediation methods, such as the physical and chemical methods, have been adopted for years, however, the drawbacks and challenges associated with them have promoted the use of an alternative which is bioremediation. Bioremediation involves using biological agents such as plants and microbes to remove or lessen the effects of environmental pollutants. Of the two, microbes are more utilized primarily because of their rapid growth and ability to be easily manipulated, thus enhancing their function as agents of bioremediation. Different groups of bacteria, fungi and algae have been employed to clean up various environmental pollutants. This review discusses the types, mechanisms, and factors affecting microbial bioremediation. It also recommends possible steps that could be taken to promote the use of microbes as bioremediation agents.
Transcriptomics reveals a distinct metabolic profile in T cells from severe allergic asthmatic patients
Authors: Pablo-Torres Carmela , Garcia-Escribano Carlota , Romeo Martina , Gomez-Casado Cristina , Arroyo Solera Ricardo , Bueno-Cabrera José Luis , del Mar Reaño Martos M. , Iglesias-Cadarso Alfredo , Tarín Carlos , Agache Ioana , Chivato Tomás , Barber Domingo , Escribese María M. , Izquierdo Elena
Published: May 2023

The reasons behind the onset and continuation of chronic inflammation in individuals with severe allergies are still not understood. Earlier findings indicated that there is a connection between severe allergic inflammation, systemic metabolic alterations and impairment of regulatory functions. Here, we aimed to identify transcriptomic alterations in T cells associated with the degree of severity in allergic asthmatic patients. T cells were isolated from severe (n = 7) and mild (n = 9) allergic asthmatic patients, and control (non-allergic, non-asthmatic healthy) subjects (n = 8) to perform RNA analysis by Affymetrix gene expression. Compromised biological pathways in the severe phenotype were identified using significant transcripts. T cells' transcriptome of severe allergic asthmatic patients was distinct from that of mild and control subjects. A higher count of differentially expressed genes (DEGs) was observed in the group of individuals with severe allergic asthma vs. control (4,924 genes) and vs. mild (4,232 genes) groups. Mild group also had 1,102 DEGs vs. controls. Pathway analysis revealed alterations in metabolism and immune response in the severe phenotype. Severe allergic asthmatic patients presented downregulation in genes related to oxidative phosphorylation, fatty acid oxidation and glycolysis together with increased expression of genes coding inflammatory cytokines (e.g. IL-19, IL-23A and IL-31). Moreover, the downregulation of genes involved in TGFβ pathway together with a decreased tendency on the percentage of T regulatory cell (CD4 + CD25+), suggest a compromised regulatory function in severe allergic asthmatic patients. This study demonstrates a transcriptional downregulation of metabolic and cell signalling pathways in T cells of severe allergic asthmatic patients associated with diminished regulatory T cell function. These findings support a link between energy metabolism of T cells and allergic asthmatic inflammation.
Quality evaluation of compounds in leaves of six Taxus species based on UPLC-MS/MS and chemometrics
Authors: Cai Qingzhu , Song Qiang , Jiang Kunxia , Lin Yao , Zhang Ying , Zhang Jirong , Lin Shuqing , Huang Lina , Xue Qihuang , Huang Zehao , Xu Wen , Xu Wei , Yam Mun Fei
Published: May 2023

Introduction:Taxus species are used as medicinal plants all over the world. The leaves of Taxus species are sustainable medicinal resources that are rich in taxoids and flavonoids. However, traditional identification methods cannot effectively identify Taxus species on the basis of leaces used as raw medicinal materials, because their appearance and morphological characteristics are almost the same, and the probability of error identification increases in accordance with the subjective consciousness of the experimenter. Moreover, although the leaves of different Taxus species have been widely used, their chemical components are similar and lack systematic comparative research. Such a situation is challenging for quality assessment.

Materials and methods: In this study, ultra-high-performance liquid chromatography coupled with triple quadrupole mass spectrometry combined with chemometrics was applied for the simultaneous determination of eight taxoids, four flavanols, five flavonols, two dihydroflavones, and five biflavones in the leaves of six Taxus species, namely, T. mairei, T. chinensis, T. yunnanensis, T. wallichiana, T. cuspidata, and T. media. Chemometric methods, including hierarchical cluster analysis, principal component analysis, orthogonal partial least squares-discriminate analysis, random forest iterative modeling, and fisher linear discriminant analysis, were utilized to differentiate and evaluate the six Taxus species.

Results: This proposed method exhibited good linearity (R2 = 0.9999–0.9972) with a lower quantification limits of 0.94–3.05 ng/mL for all analytes. The intra- and inter-day precisions were within 6.83%. Six compounds, namely, 7-xylosyl-10-deacetyltaxol, ginkgetin, rutin, aromadendrin, 10-deacetyl baccatin III, and epigallocatechin, were identified through chemometrics for the first time. These compounds can be used as important chemical markers to distinguish the above six Taxus species rapidly.

Conclusion: This study established a method for determination of the leaves of six Taxus species, and revealing the differences in the chemical components of these six Taxus species.
Low performance of Policimbac® broth microdilution in determining polymyxin B MIC for Klebsiella pneumoniae
Authors: Rocha Natália Conceição , Lopes Jessica Mariana , Russi Karolayne Larissa , Palmeiro Jussara Kasuko , Girardello Raquel
Published: May 2023

Klebsiella pneumoniae is a global threat to healthcare, and despite the availability of new drugs, polymyxins are still an important therapeutic option for this and other resistant gram-negative pathogens. Broth microdilution is the only method that is recommended for polymyxins. In this study, we evaluated the accuracy of a commercial Policimbac® plate in determining the polymyxin B MIC for K. pneumoniae clinical isolates. The results were compared with those of the broth microdilution method according to ISO 16782. The Policimbac® plate had an excellent 98.04% categorical agreement, but unacceptable 31.37% essential agreement rates. Almost 2% of major errors as observed. Additionally, 52.94% of the strains overestimated the MIC at 1 µg/mL. Three isolates were excluded from the analysis due to the drying of the Policimbac® plate. To avoid dryness, we included wet gauze for the test, obtaining a 100% of categorical agreement rate; however, a low essential agreement was maintained (25.49%). In conclusion, the Policimbac® plate was unable to correctly determine the polymyxin B MIC for K. pneumoniae isolates. This low performance may interfere with the clinical use of the drug and, thus, with the result of the patient’s treatment.