bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Pemahaman Konsep Budaya Melalui Media Monopoli Budaya Lokal (MOBUKAl) pada Mata Pelajaran IPAS
Authors: Kurniawati Afrina Indah , Fardani Much Arsyad , Riswari Lovika Ardana
Published: October 2024

Penelitian ini berdasarkan pada kurangnya pengetahuan budaya lokal pada peserta didik. Penelitian ini bertujuan untuk mengetahui pengaruh penerapan media monopoli budaya lokal (MOBUKAL) Kota Kudus terhadap pemahaman konsep budaya lokal bagi peserta didik kelas IV di SDN 1 Kedungdowo. Penelitian kuantitatif dengan desain Pre Experimental Design bentuk one group pretest-posttest ini akan dilakukan di kelas IV SDN 1 Kedungdowo dengan subjek penelitian 29 peserta didik. Teknik pengumpulan data yang digunakan meliputi teknik observasi, wawancara, dan tes. Analisis data dilakukan dengan analisis data statistik deskriptif yang berupa uji normalitas data dan uji paired sample t-test. Hasil penelitian menunjukkan adanya peningkatan terhadap pemahaman konsep budaya pada peserta didik. Hasil  uji paired sample t-test diperoleh nilai Sig. (2-tailed) = 0,000 < 0,05. Maka, peneliti menyimpulkan bahwa penggunaan media monopoli budaya lokal (MOBUKAL) kota kudus dapat berpengaruh terhadap peningkatan pemahaman konsep budaya bagi peserta didik kelas IV SDN 1 Kedungdowo.
(Peran Guru TPA Siti Aisyah dalam Mengatasi Buta Aksara Al-Qur’an Terhadap WanitaLanjut Usia Dusun Mangir Sendangsari Pajangan Bantul)
Authors: Kamelia Septiani Khoirunnisa , , Hairiyah , Susilowati Ika Tri
Published: October 2024

Al-Qur’an merupakan kitab suci umat Islam yang menjadi pedoman bagi kehidupan umat islam dan setiap umat islam memiliki  tanggung  jawab untuk mempelajari  Al-Qur’an. Dalam pelaksanaan  pembelajaran  tentunya  tidak lepas  dari peran  seorang  guru. Guru berperan sangat penting yaitu sebagai pelaku utama dalam mencapai tujuan pendidikan. Didalam pendidikan islam guru disebut sebagai ustadz, mu’alim, murabbiy yang artinya adalah orang yang memberikan ilmu pengetahun bertujuan untuk mencerdaskan peserta didik.   Penelitian   ini   bertujuan   untuk   mengetahui   bagaimana   peran   guru   Taman Pendidikan  Al-Qur’an  Siti  Aisyah  dalam  mengatasi  buta  aksara  Al-Qur’an  terhadap wanita  lanjut  usia.  Penelitian  ini  dilaksanakan  di  Taman  Pendidikan  Al-Qur’an  Siti Aisyah  Dusun  Mangir  dengan  menggunakan  metode  penelitian  kualitatif  deskriptif, subjek dalam penelitian ini adalah pengelola TPA, ustadzah TPA, dan lima jama’ah ibu- ibu TPA. Pengumpulan  data dilakukan dengan tiga teknik yaitu observasi, wawancara, dan juga dokumentasi  untuk melengkapi  data yang diperoleh  melalui  wawancara  dan observasi.   Teknik   keabsahan   data   peneliti   menggunakan   triangulasi   sumber   dan triangulasi Teknik. Kemudian  untuk analisis data dilakukan  dengan  cara reduksi data, penyajian data, dan penarikan kesimpulan. Melalui analisi data maka di dapatkan hasil penelitian mengenai Peran taman pendidikan Al-Qur’an Siti Aisyah dalam mengatasi buta aksara Al-Qur’an terhadap wanita lansia adalah: 1) Guru berperan sebagai pendidik. 2) berperan sebagai pengajar. 3) berperan sebagai pelatih. 4) berperan sebagai inovator. 5) berperan sebagai motivator.6) berperan sebagai fasilitator. 7) berperan sebagai evaluator. Penelitian serupa pernah dilakukan oleh Fikri Azra’I, Khaerul Yahya, Lia, Novi Hapsari, dkk yang membedakan adalah judul penelitian, objek penelitian dan fokus penelitian. Kata Kunci: Peran Guru, Buta Aksara Al-Qur’an, Wanita Lansia
Tailoring HIV Care for Black Populations: A Pilot Feasibility Prospective Cohort Study (Preprint)
Authors: Young BreAnne , Carrasquillo Olveen , Jones Deborah L , Pan Yue , Kenya Sonjia
Published: October 2024

BACKGROUND

Research has shown that integrating community health workers (CHWs) into the formal health care system can improve outcomes for people living with HIV, yet there is limited literature exploring this framework among marginalized minority populations.

OBJECTIVE

Herein, we discuss the feasibility of a clinic-embedded CHW strategy to improve antiretroviral therapy adherence among Black people living with HIV in Miami-Dade County, Florida, a designated priority region for the US Department of Health and Human Services’ Ending the HIV Epidemic Initiative.

METHODS

From December 2022 to September 2023, three CHWs were trained and integrated into the hospital workflow to provide support as members of the clinical team. Ten Black adults with an HIV viral load over 200 copies/mL were enrolled to received 3 months of CHW support focused on navigating the health system and addressing poor social determinants of health. Intervention feasibility was based on 4 criteria: recruitment rate, demographic composition, study fidelity, and qualitative feedback on CHW perceptions.

RESULTS

Participants were recruited at a rate of 5.7 participants per month, with the sample evenly distributed between men and women. Retention was moderately strong, with 7 (70%) of the 10 participants attending more than 75% of CHW sessions. Qualitative feedback reflected CHW perceptions on clinical interactions and intervention length.

CONCLUSIONS

Outcomes indicate that a clinic-integrated CHW approach is a feasible and acceptable methodology to address adverse social determinants and improve HIV treatment adherence. By offering targeted social and clinical support, CHWs may be a promising solution to achieve sustained viral suppression and care engagement for Black people living with HIV.
Exploring Empowerment in Online Support Communities for People Living with Tic Disorders and Tourette Syndrome: Qualitative Online Survey of User Experiences (Preprint)
Authors: Ford Ella Caroline , Coulson Neil S , Davies E Bethan
Published: October 2024

BACKGROUND

Although tic disorders (TDs) such as Tourette syndrome are relatively rare, they can have a significant impact on those living with TDs, who report lower quality of life compared to the general population and experience considerable difficulties including societal stigmatization, and barriers to accessing healthcare and pharmacological or behavioral interventions. Peer support can help improve psychological outcomes for this group, and online support communities (OSCs) have been suggested as a novel way to access this support. Empowerment involves improving an individual’s cognitive processes to increase their ability to be in control of their lives and condition. OSCs have been suggested to facilitate empowerment but this has not yet been investigated in a TD population.

OBJECTIVE

The objective of this study was to explore the presence and types of empowerment processes and outcomes perceived and reported by users of OSCs for TDs who are living with a TD.

METHODS

Current users of OSCs for TDs responded to an online survey, which included free text questions about the impact of using OSCs for TDs in relation to empowerment. Survey responses were analyzed using deductive and inductive reflexive thematic analysis.

RESULTS

Thirty-nine participants completed the online survey. A range of empowering processes were identified including exchanging information, encountering emotional support, finding recognition, helping others, sharing experiences, and changing stereotypes and stigma. Multiple empowerment outcomes including being better informed, feeling more/less confident in the relationship with healthcare professionals, enhanced acceptance, self-esteem and mental well-being, feeling more confident about treatment decisions, increased control over the future, enhanced social well-being, raising awareness and ‘one size does not fit all’ were identified. A small number of disempowering processes and outcomes were also identified from participant responses.

CONCLUSIONS

These findings contribute to evidence for empowerment experienced by users of OSCs and consider processes and outcomes unique to people with TDs and how these affect their experience living with a TD.
Benefits of Active Noise Canceling to Prevent Excessive Noise Exposure via Personal Listening Devices (PLDs): Prospective Study (Preprint)
Authors: Yun Hee Jung , Kim Jeong-Seo , Jo Mini , Kim Doyun , Lee Sujin , Moon Il Joon
Published: October 2024

BACKGROUND

The use of personal listening devices (PLDs) has increased greatly, among which wireless earbuds are the most popular. However, as this usage increases, concerns about noise-induced hearing loss have also increased. One of the topics of concern is that, as background noise increases, earbud volume also frequently increases as well. To address this issue, many of the latest earbuds models are equipped with an active noise canceling (ANC) function.

OBJECTIVE

This study aims to measure the ANC function of four of the latest wireless earbuds, both subjectively and objectively, to determine if they effectively reduce excessive noise exposure.

METHODS

A total of 47 participants with normal hearing was enrolled in this study. Before the experiment, all participants underwent pure-tone audiometry to verify their hearing ability. Participants performed preferred listening levels (PLLs) and real ear measurement (REM) tests in noisy environments using the four most popular wireless earbuds, with and without the ANC function activated.

RESULTS

The results showed that all four earbuds reduced volume levels in the PLL and REM tests when ANC was activated compared to when it was deactivated (P<.001). Among the four earbuds, C showed the most significant difference with use ANC in both the PLL and REM tests.

CONCLUSIONS

Although the effectiveness of ANC varies slightly among the four latest earbuds, it is generally considered beneficial for protecting hearing in excessively noisy environments. These earbuds significantly reduced the volume in the low-frequency range.
Dimensiones sociales de la tecnología de producción del arte rupestre del Valle de Lluta, Norte de Chile
Authors: Valenzuela Daniela
Published: October 2024

Estudio que se orienta a caracterizar la tecnología de producción de los grabados rupestres en el valla de Lluta, Arica, Chile.
La educación a distancia en la enseñanza de la medicina familiar después de la pandemia
Authors: Vega-Rodríguez Magali , Rivero-López Carlos A.
Published: October 2024

Editorial
Motivos de retiro temprano del implante subdérmico con etonogestrel
Authors: Vargas-Arellano Alejandra , Barrios-Yáñez Fanny , Pérez-Flores Laura M. , Díaz-Herrera Gabriela A.
Published: October 2024

Objetivo: identificar los principales motivos del retiro temprano del implante subdérmico con etonogestrel menor de tres años de uso. Métodos: estudio transversal analítico de enero a diciembre de 2021, mediante muestreo aleatorio estratificado de 153 pacientes usuarias de implante subdérmico de la Unidad de Medicina Familiar No. 80 en Morelia, Michoacán. Se utilizó χ2 para comparación de frecuencias; se reportaron asociaciones con los datos sociodemográficos y los principales motivos de retiro temprano, considerando p<0.05 estadísticamente significativa. Resultados: el grupo de edad prevalente fue de 20-24 años con 75.8% (n= 116), las principales causas del retiro temprano del implante subdérmico fueron por efectos secundarios  35.9 % (n =55), deseo de embarazo 19.6% (n= 30), recomendación médica 15.6% (n= 24), otros motivos 15% (n= 23), la realización de un método definitivo como oclusión tubárica bilateral y vasectomía por parte de la pareja 13.7% (n= 21).  El retiro del implante subdérmico por efectos secundarios, el tiempo de uso, el estado civil, así como el retiro por deseo de embarazo fueron variables con asociaciones estadísticamente significativas. Conclusiones: la repercusión de los efectos secundarios fue el principal motivo de retiro temprano del implante subdérmico con etonogestrel.
Quiste hepático simple
Authors: Magaña-Reyes Jorge Ignacio , Domínguez-Carrillo Luis Gerardo
Published: October 2024

Identifique el caso
Leveraging AI for Enhanced IT Infrastructure: An Examination of Automated Processes and Their Impacts
Authors: Kumaravelu Anandkumar
Published: October 2024

Abstract: This article examines the transformative impact of Artificial Intelligence (AI) on IT infrastructure automation, focusing on its applications in server and network monitoring, capacity planning, security management, resource allocation, software patching, and server provisioning. Through a comprehensive analysis of current industry trends, case studies, and future projections, we demonstrate how AI-driven automation significantly reduces manual labor, minimizes human errors, and allows IT personnel to focus on strategic initiatives. The article highlights the substantial benefits of this technological shift, including improved operational efficiency, enhanced security posture, and cost savings. However, it also addresses the challenges associated with AI implementation, such as initial costs, workforce adaptation, and ethical considerations. By exploring the evolving landscape of IT roles and the emergence of human-AI collaborative teams, this article provides valuable insights into the future of IT infrastructure management and its broader implications for organizational strategy in the digital age.
Interoperability Governance: An Analysis of the Impact of Digitization of Public Services on Local Government
Authors: Mutiarin Dyah , Lawelai Herman , Sadat Anwar , Nastia  , Wijaya Andi Arya Maulana , Sa'ban L.M. Azhar
Published: October 2024

The study highlights the significance of understanding the impact of digitalization on public services in local government organizations, particularly about coordination strategy and digitalization policy. The rapid advancements in information technology have transformed the delivery and acquisition of public services, necessitating a comprehensive understanding of the factors influencing the efficiency of digital services.  A quantitative approach was used, with Smart-PLS 3.0 analysis involving respondents from South Buton Regency local government organizations. Data collection was conducted through a direct survey in the field. The results showed a strong relationship between coordination, strategy, and digitalization policy, with a significant relationship between these factors and the effectiveness of digital services. However, no significant relationship between digitalization policy and digital service effectiveness was found. The results of this study provide valuable insights into the dynamics of interoperability governance and the nuanced relationships between coordination, strategy, digitization policy, and digital service effectiveness in local government organizations. Despite the significant influence of coordination and strategy, the role of digitalization policy on digital service effectiveness suggests the need for further evaluation or a change in policy approach. Limitations of this study include the small sample size and focus on one geographical area, so caution is needed in generalizing the findings. Nevertheless, this study contributes significantly to understanding the implementation of digitization in public services, with practical implications for policy development and management practices.
Bureaucratic Reform in Indonesia: From “Public Administration" to "Public Management"
Authors: Rahmat Basuki , Hartanto Beni , Hilman Acep
Published: October 2024

Indonesia has continued to experience increasingly complex, global developments and requires change. However, there has been no reform in the government sector that is needed to anticipate these developments, especially regarding public administration. The aim of this research is to analyze the public administration reform in Indonesia. The research method used is a qualitative research method, and literatures study for gathering the data. The research results show that government institutions no longer monopolize the roles that have previously been the authority of the government. Therefore, the public administration paradigm needs to be reformed starting from government to the governance process. The government needs to increase management capacity and change the culture towards a new public management direction. In the systems paradigm, the government is encouraged not to focus on systems and procedures, but to be more performance oriented and work by emphasizing an entrepreneurial spirit.
The Two Metamorphosesin Horace’s Second Roman Ode
Authors: Ferenczi Attila
Published: October 2024

It has always been a much-debated question how the two final stanzas of Horace’s Second Roman Ode fit to what came before in this poem. This paper will venture to place the apparent anomaly of these two verses within a new context emphasizing the strong and traditional connection between the constitution of the Roman State and the pax deorum. The second section of the poem (verses 5-6) portrays the workings of virtus as something incompatible with the usual ways and protocols of the late Republican political procedure in Rome. The all-changing power can be regarded as an inevitable consequence of the nature of the virtus, but at the same time, it can cause religious anxiety from somebody seeing and understanding this transformation. The last two verses about a religious panic do not contrast with the poem's previous passages but represent a new voice in the political discourse.
From the Isles of the Blessed to Taprobane
Authors: Székely Melinda
Published: October 2024

By analysing Pliny's Naturalis Historia and placing it in the broader context of ancient knowledge, I describe the knowledge and myths about the islands of the western and eastern edges of the known world in antiquity, with particular reference to Pliny's subjective ideas.
A Curse Against the Greens
Authors: Németh György , Barta Andrea
Published: October 2024

The curse tablet presented in this study is part of the collection of Musée Bargoin in Clermont-Ferrand. After its discovery in 1906, it was forwarded to Auguste Audollent for examination. However, no scholarly investigation has been conducted on the tablet since then, and it has not been published, save for a short reference. The tablet, as indicated by its inscription, may have been made with the intent of influencing the outcome of a North African chariot race involving the Green team.
Capital intelectual como generador de productividad y competitividad en la educación superior: una revisión sistemática
Authors: Valbuena Antolínez Sandra , Pico Bonilla Claudia Milena
Published: October 2024

Objetivo: sistematizar los abordajes metodológicos y los resultados relacionados con la competitividad y la productividad, dentro de la gestión del conocimiento y la medición del capital intelectual.
Diseño/metodología/enfoque: se realizó la revisión de la literatura, utilizando las directrices PRISMA y el integrated design en Scopus para analizar cómo se complementan los enfoques cuantitativo, cualitativo y mixto.
Resultados: se encontraron cuatro estudios con énfasis en la productividad medida por la vinculación con las tecnologías de la información, y en los procesos de la gestión estratégica y del conocimiento; seis estudios centrados en la competitividad con la observación de variables como valor social, sostenibilidad, tercera misión, transferencia tecnológica, renovación económica; y, otros diez estudios que se aproximan de forma integrada a los conceptos de productividad y competitividad para explicar el impacto que tiene el conocimiento en el entorno y en los grupos de interés a través de variables como imagen, reputación, impacto sectorial, liderazgo, innovación y relacionamiento con la empresa. Por otra parte, se encuentra un consenso sobre el desagregado del capital intelectual en humano, relacional y estructural.
Conclusiones: la investigación en gestión del conocimiento y capital intangible se encuentra en una etapa temprana con avances y consensos desde un enfoque mixto, en su mayoría desde un abordaje transversal sobre los tipos de capital y los elementos que favorecen la gestión y la medición. Los modelos de capital intelectual contextualizados para el sector garantizan el uso de la capacidad institucional para el cumplimiento de metas (productividad) y el impacto a los grupos de interés (competitividad), desde la sostenibilidad, la transferencia de conocimiento, la innovación y el compromiso con las comunidades, el relevo generacional y el liderazgo institucional.
Originalidad: las revisiones sistemáticas previas estudian los conceptos y modelos de capital intelectual, pero ninguna se enfoca en crear valor a partir de los conceptos de productividad y competitividad en el contexto de la educación.
Entrepreneurial Ecosystems and Societal Impact: Opportunities at the Intersection of Place, Sustainable Development, and Technology Management
Authors: Roundy Philip T.
Published: October 2024

Entrepreneurial ecosystems encompass the actors and factors within geographic areas that collectively foster entrepreneurship. Research on these ecosystems emphasizes the importance of “place” in both innovation and technology management. In particular, the elements and attributes of local communities significantly influence the development of new technologies, business models, and products. Increasingly, organizations are harnessing technological innovations to attain both financial sustainability and societal impact. Entrepreneurs who establish and manage these organizations, commonly referred to as “social entrepreneurs,” strive to create thriving businesses while addressing critical societal issues such as poverty, homelessness, human trafficking, environmental degradation, and animal cruelty. Although successfully pursuing sustainable development opportunities is challenging, social entrepreneurs can utilize local resources and their entrepreneurial ecosystems to bolster their initiatives. Despite substantial progress in understanding the interplay between entrepreneurs’ agency and the dynamics of their local environments, there remain important opportunities to explore how entrepreneurs interact with their ecosystems while creating technological innovations, managing their ventures, and striving for societal impact.
ANALISIS KARAKTERISTIK LAPISAN TANAH DI DAERAH PATAHAN LOKAL BERDASARKAN DATA MIKROTREMOR DI KABUPATEN PESAWARAN
Authors: Hesti Hesti , Mulyasari Rahmi , Hidayatika Akroma , Haerudin Nandi , Nurlaili Jesica
Published: October 2024

Kabupaten Pesawaran merupakan wilayah yang rawan terhadap gempabumi karena dekat dengan Patahan Semangko Segmen Lampung dan keberadaan Patahan lokal yaitu Patahan Menanga yang melewati Gunung Pesawaran di Kabupaten Pesawaran. Keberadaan Patahan di suatu wilayah harus diwaspadai karena pergerakannya dapat menyebabkan gempabumi, ditambah dengan kondisi lapisan tanah yang tebal dan lunak dapat menyebabkan efek guncangan dipermukaan bumi yang lebih kuat. Oleh karena itu sangat penting dilakukan penelitian mengenai karakteristik tanah pada wilayah ini sebagai bagian dari upaya mitigasi bencana gempabumi. Tujuan dari penelitian ini adalah untuk menganalisis karakteristik lapisan tanah di daerah sekitar Patahan Menanga. Adapun metode yang digunakan pada penelitian ini adalah metode geofisika mikrotremor dan analisis pendekatan geologi.  Hasil penelitian ini menunjukkan bahwa daerah penelitian memiliki nilai frekuensi dominan tanah yang bervariasi yaitu 1 – 11,8 Hz yang menunjukkan kondisi geologi permukaan yang bervariasi  yaitu terdiri dari batuan tersier yang cenderung tipis dan  batuan alluvial yang cenderung tebal. Daerah penelitian memiliki nilai amplifikasi tanah yang bervariasi yaitu antara 1 – 3,6 kali yang menunjukkan daerah penelitian memiliki resiko rendah hingga sedang terhadap guncangan gempabumi.
IDENTIFIKASI STRUKTUR PATAHAN DI KABUPATEN PANGANDARAN DAN SEKITARNYA BERDASARKAN DATA ANOMALI MAGNETIK
Authors: Adiltha Fatina , Muhardi Muhardi , Perdhana Radhitya
Published: October 2024

Kabupaten Pangandaran dan sekitarnya berada di Provinsi Jawa Barat bagian selatan, dan merupakan daerah rawan gempa bumi. Hal ini disebabkan karena daerah tersebut terdapat banyak patahan (sesar) dan berada di atas formasi geologi yang relatif muda. Penelitian ini bertujuan untuk mengidentifikasi struktur patahan di Kabupaten Pangandaran dan sekitarnya berdasarkan data anomali magnetik. Data yang digunakan dalam penelitian diperoleh dari hasil digitasi lembar anomali magnetik yang berasal dari Pusat Survei Geologi, Bandung. Keberadaan sesar diidentifikasi menggunakan dua filter analisis derivatif, yaitu First Horizontal Derivative (FHD) dan Second Vertical Derivative (SVD). Hasil penelitian menunjukkan bahwa anomali magnetik reduksi ke kutub sebesar -646,3 nT hingga 780,1 nT dan anomali magnetik residual sebesar -723,3 nT hingga 542,4 nT. Hasil interpretasi menunjukkan struktur geologi bawah permukaan pada sayatan A-A’ terdapat dua sesar normal dan struktur lipatan antiklin, pada sayatan B-B’ terdapat empat sesar normal dan satu sesar naik, pada sayatan C-C’ terdapat tiga sesar normal dan satu sesar naik, dan pada sayatan D-D’ terdapat dua sesar normal, tiga sesar naik, serta struktur lipatan berupa antiklin dan sinklin.
ANALISIS SEBARAN ANOMALI GRAVITASI UNTUK OBSERVASI STRUKTUR GEOLOGI ZONA MINERALISASI DI DAERAH CIARINEM DAN SEKITARNYA
Authors: Harsita Sri , Muhardi Muhardi , Perdhana Radhitya
Published: October 2024

Daerah Ciarinem dan sekitarnya merupakan daerah yang memiliki potensi kandungan endapan emas yang cukup tinggi. Penelitian ini bertujuan untuk melakukan observasi struktur geologi zona mineralisasi di daerah Ciarinem dan sekitarnya berdasarkan sebaran anomali gravitasi. Peta anomali Bougeur yang digunakan dalam penelitian ini diperoleh dari Pusat Survei Geologi, Bandung. Proses digitasi dilakukan untuk mengubah peta analog menjadi peta digital. Anomali regional diperoleh dari anomali Bouguer lengkap dengan transformasi kontinuasi ke atas, sedangkan anomali residual diperoleh dari pengurangan anomali Bougeur lengkap dengan anomali regional. Hasil pengolahan data menunjukkan bahwa nilai anomali regional sebesar 513,7 mGal hingga 1235,7 mGal, sedangkan anomali residual sebesar -51,3 mGal hingga 47,1 mGal. Hasil pemodelan 2D menunjukkan lapisan bawah permukaan terdapat batuan intrusi dan didominasi batuan gunungapi dan batuan sedimen. Struktur geologi pada sayatan A-A’ terdapat empat sesar normal, sayatan B-B’ terdapat dua sesar normal, dan sayatan C-C’ terdapat enam sesar normal dan membentuk graben. Keberadaan struktur geologi bawah permukaan berupa sesar dan graben dapat diasumsikan sebagai struktur yang membentuk zona mineralisasi di daerah Ciarinem dan sekitarnya, dengan tipe mineralisasi epitermal.
SINTESIS DAN KARAKTERISASI LAPISAN TIPIS ZNO/ASAM STEARAT SEBAGAI MATERIAL SELF CLEANING
Authors: Sahurni Adona , Deswardani Frastica , Afrianto M. Ficky , Nurhidayah Nurhidayah
Published: October 2024

Telah dilaksanakan penelitian tentang lapisan tipis ZnO/asam stearat sebagai material self cleaning. Penelitian diawali dengan proses pembuatan sol ZnO dengan metode sol gel menggunakan bahan zink asetat, etanol dan dietanolamin yang kemudian di lakukan penumbuhan lapisan tipis diatas substrat kaca menggunakan teknik dip coating, diikuti dengan modifikasi permukaan oleh asam stearate dengan berbagai konsentrasi yaitu 0%, 1%, 1,5%, 2%, 2,5% dalam etanol. Sampel yang telah dibuat dilakukan pengujian sudut kontak dan self cleaning, serta dikarakterisasi menggunakan SEM-EDX. Berdasarkan penelitian hasil uji sudut kontak sampel ZS-0% dan ZS-1% menghasilkan sudut kontak < 90O yang berarti memiliki sifat hidrofilik, sedangkan pada sampel ZS-1,5%, ZS-2%, dan ZS-2,5% menghasilkan sudut kontak > 90O yang berarti memiliki sifat hidrofobik. Dimana Pada penelitian ini asam stearat dengan konsentrasi 2% merupakan konsentrasi optimum dengan sudut kontak sebesar 128,969o, ini menunjukkan bahwa ZS-2% memiliki sifat self-cleaning yang baik dibandingkan kaca murni. Berdasarkan hasil SEM-EDX didapatkan morfologi permukaan substrat pada sampel ZS-2% lebih kasar dibandingkan dengan substrat pada sampel ZS-0%. Hasil EDX pada sampel ZS-0% menunjukkan adanya unsur Zinc(Zn), dan oksigen(O), sedangkan pada sampel ZS-2% menunjukkan adanya unsur Zinc(Zn), karbon(C), dan oksigen(O).
APLIKASI SISTEM INFORMASI GEOGRAFIS UNTUK PEMETAAN DAERAH BERPOTENSI TSUNAMI DI DESA BATU BALAK, KECAMATAN RAJABASA, KABUPATEN LAMPUNG SELATAN
Authors: Mulyasari Rahmi , Solihin Hafiz Ibnu , Ghiffary Aviv Irfan Wildan , Kuncoro Kirana Helga Aimee , Haerudin Nandi , Yulianti Titin , Mulyatno Bagus Sapto
Published: October 2024

Desa Batu Balak merupakan salah satu pemukiman yang terdampak oleh tsunami yang melanda Selat Sunda pada tahun 2018. Letaknya yang dilintasi sungai dan berdekatan dengan pesisir pantai meningkatkan kerentanannya terhadap tsunami. Selain itu, tingkat keterpaparan tsunami juga dipengaruhi oleh ketinggian dan kelandaian lereng yang ada. Tujuan dari penelitian ini adalah memetakan tingkat bahaya tsunami sebagai sarana pengurangan risiko bencana di tingkat desa, sesuai dengan Peraturan Kepala BNPB No.1 Tahun 2012 tentang Desa Tangguh Bencana. Penelitian ini memanfaatkan Sistem Informasi Geografis (SIG) untuk menganalisis data dari berbagai sumber, termasuk data SHP, DEM SRTM 30 M Lampung Selatan, dan data tutupan lahan Indonesia dari Badan Informasi Geospasial. Hasil penelitian menunjukkan bahwa kawasan pemukiman di pesisir pantai Desa Batu Balak memiliki kerentanan tinggi terhadap tsunami. Studi ini telah menghasilkan peta zonasi tsunami untuk Desa Batu Balak, yang dapat digunakan dalam pembangunan jalur evakuasi tsunami dan peningkatan infrastruktur desa.
Advancements in biomimetic nanomaterials in the activation of NFκb receptors in cancer
Authors: - Aayush
Published: October 2024

Biomimetic nanomaterials are catching up in the field of oncology with the traditional methods of treating cancer. One of the main causes of cancer is the misregulation of NF-κB receptors in the body. They are essential for the DNA transcription, cytokine synthesis and cell survival. This study includes the roles of different biomimetic particles involved in the activation of NF-kB pathway that leads to cancer. Nuclear factor-kB (NF-kB) transcription factors are involved in a variety of physiological processes, including innate and adaptive immunological responses, cell proliferation, cell death, and inflammation. It has been established that abnormal regulation of NF-kB and the signalling pathways that govern its activity play a role in cancer formation and development, as well as tolerance to chemo- and radiotherapy. Future treatment options in nanotech. for the treatment of cancer includes the conjugation of nanoparticles and antibodies in order to supress the activation of NF-kB receptor and the use of carbon-based nanomaterial like graphene.
Recent Advances in Biological Nanodevices and Biosensors: Insights into Applications and Technological Innovations
Authors: Shivakumar Dr. Neeta
Published: October 2024

This paper explores recent advances in the detection of viruses and metals, focusing on how biosensors are revolutionizing environmental management and healthcare. Biosensors have transformed fields such as medical diagnostics by enabling the detection of biological targets at low concentrations. Specifically, graphene field-effect transistor (FET)-based immunosensors have emerged as powerful tools for swiftly and accurately identifying biological targets, opening new avenues in these areas. Furthermore, improvements in metal detection have enabled the monitoring of electrical activity in non-excitable cells, advancing research into cancer bioelectricity and its therapeutic applications. These advancements demonstrate how nanotechnology can innovate approaches in healthcare, offering more sensitive, adaptable, and efficient methods. Additionally, progress in cellular electrophysiology holds promise for enhancing treatments in neurology, cardiology, and regenerative medicine. These advancements can lead to better patient outcomes and expedite the development of bioengineered tissues and organs with integrated electrical properties. This paper explores these groundbreaking applications of biosensors in environmental and medical sciences, highlighting their transformative potential and future directions.
Determination of Phenolic and Flavonoid Total Levels and Antioxidant Activity of Ethanol, Ethyl Acetate, and n-Hexane Extracts of Citrus reticulata Blanco Fruit Peel by DPPH and ABTS Methods
Authors: Fadhlillah Faizah Min , Miranti Mila , Wibowo Diki Prayugo , Purkon Dicki Bakhtiar
Published: October 2024

Background: The peel of the fruit Citrus reticulata Blanco has long been used in traditional medicine due to its various properties. Traditional medicine from certain parts of medicinal plants is related to the content of bioactive compounds from the fruit's peel, such as phenolic compounds and flavonoids that can help protect the body from damage caused by free radicals. Objectives: This study aimed to evaluate the total levels of phenolics and flavonoids as well as antioxidants from ethanol, ethyl acetate, and n-hexane extracts from the skin of Citrus reticulata Blanco using DPPH (2,2-diphenyl-1-picrylhydrazil) and ABTS (2,2'-azinobis-(3-ethylbenzothiazolin-6-sulphonate))) methods. Material and Methods: The extraction process was carried out using the maceration ion method with ethanol, ethyl acetate, and n-hexane solvents at room temperature for 24 hours. Total phenolic and flavonoid levels in the extract were determined using UV-Vis spectrophotometry, and antioxidant activity testing was determined based on the extract's ability to neutralize free radicals from DPPH and ABTS. Results: The results showed that the ethanol extract of Citrus reticulata Blanco fruit peel had higher total phenolic and flavonoid levels compared to ethyl acetate and n-hexane extracts. The total phenolic levels in ethanol, ethyl acetate, and n-hexane extracts were 142.02, 74.60, and 57.17 mg GAE/g, respectively. The total flavonoid levels in ethanol, ethyl acetate, and n-hexane extracts were 45.96, 40.22, and 38.54 mg QE/g, respectively. In addition, ethanol extract has also shown the strongest antioxidant activity based on the results of testing with DPPH and ABTS methods. The inhibitory concentration (IC50) of ethanol extract against DPPH and ABTS methods was 23,490 μg/mL and 31,971 μg/mL, respectively, with strong category. Conclusions: This study shows that the skin of Citrus reticulata Blanco fruit contains phenolic compounds and flavonoids that have the potential as natural antioxidants, with ethanol extract being the most promising related to total phenolic and flavonoid levels and antioxidant activity. This information can be used as a basis for developing pharmaceutical dosage products and health supplements that can potentially improve antioxidant/health status in the body.
Formulation of Micellar Based Water from Piper crocatum Leaves Extract Using Various Concentrations of Poloxamer 188
Authors: Pratiwi Hani , Okzelia Sari Defi , Afiah Mawar
Published: October 2024

Background: Micellar based water (micellar water) is a preparation used to clean the face or makeup with water-based ingredients. Micellar water has moisturizing additives accompanied by antioxidants. Red betel leaf is one of the plants that contain flavonoid compounds so it has the potential as an antioxidant. Micelles are the main component in micellar water preparations derived from amphiphilic block copolymer-type surfactants such as poloxamer. Objectives: The purpose of this study was to formulate, evaluate, and observe the antioxidant activity of the most optimal formulation of micellar based water preparations of red betel leaves extract with variations in poloxamer 188 concentrations. Material and Methods: The stages of this research were material preparation, extract characteristics evaluation, production of micellar preparations at poloxamer 188 concentrations of 1% (F1); 1.5% (F2); and 2% (F3); preparation characteristics evaluation, stability, particle size, antioxidant activity assay for the optimum formula, and irritation test. Results: The results of the evaluation showed that the pH of the preparation ranged from 4.54 - 4.76; viscosity values ranged from 16.40 - 24.26 cP; particle size ranged from 170.6 – 349.9 nm; and the entire formula did not irritate the skin. Conclusions: Based on the results of this study, it was found that the most optimal concentration of poloxamer 188 was 2% (F3) with IC50 value of 119.63 ppm which categorized as a moderate antioxidant activity.
Comparison of Taxi-in and Taxi-out Times by Airport Hub Classification and Number of Hot Spots
Authors: Wang Jiansen , Gupta Shantanu , Johnson Mary
Published: October 2024

Taxi time has been identified as a significant factor that may affect airport capacity, congestion, fuel burn, and emissions. Reducing taxi time at airports may contribute to increasing airport efficiency and capacity, and reducing fuel consumption and emissions. In this paper, average quarter-hour taxi-time data from a sample of 33 U.S. airports was analyzed to explore the difference between taxi-out time and taxi-in time. Using parametric and non-parametric statistical tests, this research found that the mean and median taxi-out time was significantly different from the mean and median taxi-in time for each of the three airport hub classifications (small, medium, large), each of the six numbers of airport hot spots (0, 1, 2, 3, 4, 5), and for each combination of hub classification and numbers of hot spots. The results of this research may provide a better understanding of taxi time at small, medium, and large hubs airports with hot spots. The results may be useful to airport managers and decision makers to improve airport efficiency when faced with competing airport improvement initiatives or projects.
Pilot Study for Cabin Crew's Willingness to Operate on Single Pilot Operations
Authors: Bell Katherine
Published: October 2024

Single-pilot operations are already in place within military aircraft, small modes of commercial passenger transportation, and cargo operations. NASA, aircraft manufacturers, and airlines are collaborating on projects that birth safe and efficient single-pilot operation suitable technology for commercial airliners. A stipulated number of cabin crew is required per number of passengers on commercial airliners for safety, security, and medical purposes. The purpose of this pilot study was to determine what scales are valid to assess factors that affect a cabin crew’s willingness to operate on single pilot operations. With the selection of appropriate scales, such findings could aid industry regulators, government bodies, and airlines with training programs, educational conferences, and procedural development. The pilot study surveyed members of the cabin crew population using voluntary response sampling. The cabin crew was presented with a survey that collected demographic data, affect ratings, technology acceptance model perceptions, personality traits, and willingness to operate scores. The validity of the scales was tested using Cronbach’s Alpha in SPSS, and the usability of the survey instrument was assessed. The affect scale was shown not to be valid. In a follow-up study, the aim will be to use a survey containing the six remaining valid scales and collect demographic data to determine which predictors will be significant in a regression model.
Time and Cost to Complete Instrument Training Based on Flight Block Times
Authors: Dubena Rafael , Thomas Robert
Published: October 2024

The optimization of flight training operations at higher educational aviation institutions can be helpful in increasing the efficiency at which student pilots attain their certification and help supply more pilots into the industry. Large training institutions usually offer students certain blocks of time to conduct their training. At these schools, the Instrument course is usually administered during daytime or nighttime flight blocks. The purpose of this research study was to analyze if there was a significant difference in the overall cost to complete the Instrument course during the day compared to at night. One independent samplet-test was conducted; the parameters selected were Two-Tail, with a sample size of 128. Archival data records of higher educational aviation institutions were analyzed, and the results show that it costs, on average, around $1,100 less to complete the Instrument course in night flight blocks compared to day flight blocks. This research paper demonstrated how flight block times can significantly impact the cost of completing the Instrument course at aviation universities and highlighted factors that led to these results.
Citrullus colocynthis fruit resin and Cyperus rotundus tuber resin: Assessing their analgesic effects with hot plate and writhing tests
Authors: Ben Ali Anis , Chouikh Atef , Haddad Larbi
Published: October 2024

The hot plate test and writhing test were both employed to investigate the
analgesic effects of Citrullus colocynthis fruit resin and Cyperus rotundus
tuber resin at varying concentrations and time intervals. The hot-plate test
results revealed that Citrullus colocynthis fruit resin demonstrated
significant dose-dependent and time-dependent analgesic effects. In
contrast, Cyperus rotundus Tuber resin did not exhibit substantial analgesic
effects in the hot-plate test. In the writhing test, Citrullus colocynthis
fruit resin exhibited clear dose-dependent analgesic effects at higher
concentrations. Cyperus rotundus Tuber resin demonstrated significant
analgesic effects in reducing writhing responses, although its efficacy was
not as potent as the positive control indomethacin. These results offer
insights into the potential use of these natural resins for pain management
while also highlighting the importance of understanding the underlying
mechanisms of their analgesic effects for further clinical applications.
Prediction of hardness of palm inter-fruitlet membrane reinforced high-density polyethylene-waste (HDPEw) composites
Authors: Ndukwe Agha , Azolibe Nelson , Okon Kooffreh , Christopher Promise , Collins Michael , Ozoh Chibuike , Obasi Paul , Eze Collins , Ezem Augustus , Thomas Chidiebere , Ogbodo Chijioke
Published: October 2024

This study concerns the prediction of the hardness of reinforced high-density
polyethylene waste (HDPEw) composites. The locally sourced palm
inter-fruitlet membrane served as the reinforcing (filler) material while
the Yoghurt Can wastes constituted the polymer matrix. The palm
inter-fruitlet membrane, used for the study were pulverized and sieved to
fine particle sizes. All filler particles passed through a mesh of 250 ?m.
Consequently, the filler sample was characterized using DTA, TGA, and FTIR
techniques whereas SEM was used to study the morphology of the produced
composite. Different weight-percentage compositions of the filler were used
to produce the examined samples with the following formulations: 100 %
LDPEw, 6wt.%, 12wt.%, 18wt.%, and 24wt.% filler composites using the
compression moulding method. On the other hand, hardness, flexural, tensile,
and impact strengths were conducted to understand the mechanical behaviour
of the produced composites. Multiple regression and artificial neural
networks were used to predict the experimental hardness values in
consideration of other independent variables like composite formulations,
tensile, flexural, and impact strengths. The result of the TGA analysis
showed the weight loss and degradation of the organic constituents in the
filler while the DTA study revealed a variety of thermal occurrences and
transitions indicating dehydration, phase change, and filler disintegration.
The maximum hardness value of 76.67 HV was recorded for the composite with
24 wt.% filler while the composite formulation with 12 wt.% filler had the
highest flexural and impact strengths of 41.87 MPa and 0.4979 J/mm2
respectively. The composite composition with 18 wt.% filler gave the highest
tensile strength of 39.04 MPa. The unequal distribution of the filler within
the HDPEw matrix was revealed by the SEM micrographs. The more uniformly
dispersed composites with 12 and 18 wt.% fillers were seen to have improved
mechanical properties whereas the reverse was the case for the 24 wt.%
filler composite formulation which was found to exhibit directional
reinforcement zones. The mean squared error assessment of the predicted
hardness values indicated that predictions by multiple regression were more
accurate than those that were obtained by ANN. This outcome could be caused
by the relative linearity of the examined variables.
Total quality index approach applied to Chaga extracts obtained by green extraction techniques
Authors: Lazic Vesna , Doroski Ana , Djekic Ilija , Vunduk Jovana , Kozarski Maja , Klaus Anita
Published: October 2024

This study aimed to develop a single quality index of Serbian (IS) and
Mongolian (IM) Chaga (Inonotus obliquus) extracts obtained by different
types of extraction. Microwave-assisted extraction (MW), ultrasonic-assisted
extraction (VAE), and supercritical water extraction (SWE) were used to
prepare the extracts. Seven quality parameters of a mushroom extract were
considered, including the free radical scavenging capability determined by
the 1,1-diphenyl-2-picrylhydrazyl (DPPH?) and 2,2'-azino-bis (3-
ethylbenzothiazoline-6-sulfonic acid) (ABTS?+) assays, the ability to
chelate ferrous ions (Fe2+), as well as the total amount of phenolic
compounds, proteins, polysaccharides, and glucans. The mentioned parameters
were used to define the total quality index (TQI). Based on TQI scores SWE
can be recommended as the most effective type of extraction (favors the
yield) of total phenolic compounds (TPC), total extracted proteins (TEP),
total polysaccharides (TPS), total glucans (TG), and antioxidant assays.
Finally, TQI results for seven quality parameters, derived from six Chaga
samples using SWE at 200?C, showed the best overall quality for both the IS
and IM extracts.
Evaluation of yam (Dioscorea rotundata) chips pre-treatment conditions (salting, sulphiting, and blanching) combined with dehydrofrozen storage for fries production
Authors: Jimoh Kazeem , Adedokun Simeon , Osunrinade Oludolapo
Published: October 2024

Yam is a highly perishable commodity lacking commercial utilization, like
potato for French fries production. Frozen yam chips could be a panacea for
its increased utilization as fries and export commodity for Nigeria. Hence,
Yam (Dioscorea rotundata) Chips pre-treatment conditions (Salting,
sulphiting, blanching) combined with dehydrofrozen storage for fries
production was studied. Yam chips were pre-treated (Salting, sulphiting, and
blanching), dehydrated (60?C for 10 min), and stored for five months at
frozen temperature. Standard methods were used to determine the proximate
composition, textural and sensory properties of yam fry samples. Yam fries
proximate composition ranged as 5.19-11.33% (moisture), 14-36.92% (Fat),
0.74-2.34% (Protein), 0.67-2.01% (Crude fibre), 0.97-1.06% (ash), and
51.7-75.93% (carbohydrate). The range of the textural properties of the yam
fries were hardness (27.38-442.13 N), energy to peak (0.07-0.87 N?m),
gumminess (8.55-271.98 N), chewiness (3.57-238.48 N), springiness (0.23-0.91
mm), stringiness (0.52-3.67 mm) and cohesion (0.1-0.75). Salted and blanched
fried yam chips showed lesser variation in textural properties throughout
storage. Sensory scores for appearance, aroma, taste, palatability, texture,
and overall acceptability of the yam fries decreased as the storage duration
of the yam chips increased, except for yam fries pre-treated by blanching
and salting. The blanched and salted dehydrofrozen yam chips were acceptable
by panelists until the fourth month of storage. High-quality and acceptable
yam fries could be produced by combining salting and blanching of yam chips
before dehydrofrozen storage. The commercial success of this product will
reduce the huge post-harvest losses of yams and provide income to the
farmers.