bluuebunny/crossref_metadata_2025 huggingface dataset:
Perancangan Aplikasi Pengenalan Pariwisata Danau Toba Berbasis Android Menggunakan Layanan Location Based Service (LBS)
Authors: Gladian Dzaky Dirga Ananda
Published: March 2024

Sumatera Utara merupakan salah satu provinsi di Indonesia yang  memiliki beragam sektor pariwisata. Menurut badan pusat statistic provinsi sumatera utara pada bulan Maret terdapat 16.299 kunjungan wisatawan mancanegara pada bulan Maret tahun 2023. Pariwisata yang cukup terkenal yang berada di provinsi Sumatera Utara yaitu Danau Toba. Hal itu dikarenakan di Danau Toba selain terkenal dengan keindahan alamnya, di Danau Toba juga kaya akan kebudayaan dan tradisi-tradisi setempat. Namun selama ini rekomendasi tujuan wisata biasanya dari mulut ke mulut, media massa, media sosial, dan browsing. Hal ini membuat tidak semua objek wisata diketahui oleh banyak orang, dikarenakan kurangnya informasi maupun letak objek wisata yang terpencil. Pada penelitian ini, peneliti akan merancang dan membangun sebuah aplikasi yang mana di dalam aplikasi tersebut terdapat informasi seputar objek wisata yang terdiri dari titik lokasi objek, jarak tempuh dari suatu tempat, fasilitas yang tersedia, jam operasional objek wisata, dan lain sebagainya. Aplikasi yang dirancang berbasis android, sehingga memudahkan para wisatawan untuk menggunakan atau memanfaatkan aplikasi tersebut. Metode yang digunakan dalam pengembangan sistem berupa waterfall, sedangkan aplikasi yang dibangun menggunakan layanan Location Based Service (LBS), dengan memanfaatkan Global Positioning system (GPS). Aplikasi ini diharapkan dapat menjadi solusi untuk wisatawan yang ingin mengunjungi wisata – wisata yang berada di Danau Toba, serta aplikasi ini dapat menjadi media promosi dan media pengenalan objek wisata lainnya yang belum dikenali banyak orang dengan berbasis teknologi.
Media Pembelajaran Interaktif “Batik Pedia” Berbasis Aplikasi Android Pada Ensiklopedia Batik Nusantara
Authors: Alief Fathul Habibie  , Fachira Nur Sahfitri  , Welia Desera Mandalika
Published: March 2024

Batik is a traditional textile art form originating from Java, Indonesia. This involves using wax to design patterns on cloth, which are then dyed to create the effect of many colors. The batik process involves several steps including waxing, dipping and boiling the cloth to remove the wax. Batik has a long history in Indonesia and is an important part of the country's cultural heritage. It is often used to make decorative fabrics such as clothing and tablecloths. Batik has grown in popularity around the world in recent years, with many designers incorporating this technique into their collections. Batik is a comprehensive resource on the history and techniques of Batik, Indonesia's traditional textile art. This encyclopedia provides structured information about the origins and cultural significance of batik, and how batik has developed over time. Some of the topics discussed in this Batik Encyclopedia include the history of batik, batik patterns and designs, the manufacturing process, and the tools used to make batik, as well as fun and certainly interesting quizzes. In this study, the authors used a qualitative descriptive approach and an IMSDD development method which would later be implemented into an Android-based application using Microsoft PowerPoint, Ispring Suite, and the APK 2 website builder. With the interactive application "Batik Pedia", the authors hope that later it can provide educational tools to its users about the diversity of batik motifs in Indonesia. So that batik will continue to grow and be recognized as one of Indonesia's wealthy heritage.
Penerapan QR Code Dengan Foto Diri dan Lokasi Pada Absensi Karyawan Berbasis Android
Authors: Wilda Syahfitri
Published: March 2024

Penelitian ini bertujuan untuk membahas Absensi Karyawan menggunakan Android yang dirancang dengan Google Spreadsheet dan Glideapps yang akan memudahkan karyawan untuk Absen. Hasil penelitian ini berupa Aplikasi QR Code yang memudahkan karyawan untuk dapat mengenali identitas dan lokasi pada saat absen berjalan. Metode penelitian yang digunakan adalah metode Waterfall dan menggunakan black-box testing untuk menguji user interface agar lebih mudah digunakan oleh pengguna  yang dapat membantu kegiatan karyawan menjadi lebih efektif dan efisien. Perangkat lunak yang digunakan menggunakan UML(Unified Modelling Language). Disebut dengan Waterfall karena tahap demi tahap yang dilalui harus menunggu selesainya tahap sebelumnya dan berjalan berurutan. Hasil dari penelitian ini yaitu memudahkan karyawan dalam proses absensi serta admin dapat membuat laporan absensi dengan mudah dan efisien agar lebih tepat dan akurat.
Sosialisasi Penggunaan Akun Belajar.Id Dalam Mendukung Penerapan Merdeka Belajar Kurikulum Merdeka SMKN 9 Medan
Authors: Hendry  , Barany Fachri  , Harahap Ricky Ramadhan
Published: March 2024

Program Sekolah Penggerak merupakan penyempurnaan program transformasi sekolah sebelumnya sebagai upaya untuk mewujudkan visi Pendidikan Indonesia yang maju, berdaulat, mandiri, dan berkepribadian melalui terciptanya Profil Pelajar Pancasila. Ada lima intervensi yang akan dilakukan di sekolah penggerak, yaitu :1)  Pendampingan konsultatif dan asimetris; 2) Penguatan sumber daya manusia di sekolah; 3) Pembelajaran dengan paradigrma baru; 4) Perencanaan Berbasis Data, dan 5) Digitalisasi sekolah. Salah satu intervensi yang dilakukan untuk Sekolah Penggerak adalah Digitalisasi Sekolah. Berdasarkan hasil monitoring dan evaluasi pelaksanaan Program Sekolah Penggerak terdapat kendala dalam melakukan intervensi tersebut, yaitu penggunaan akun belajar yang belum optimal. Tujuan dari kegiatan ini agar semakin banyak warga sekolah yang memanfaatkan akun belajar sebagai pendukung proses pembelajaran sehingga Program Merdeka Belajar untuk pendidikan tuntas berkualitas dapat terwujud.
PELATIHAN APLIKASI PENGOLAH VIDEO BAGI PROMOSI PRODUKSI BARANG JADI PADA UNIT DAGANG ROSNANI CHAN
Authors: Budiman Arief , Yuyun Dwi Lestari  , Irwan Dedy , Yessi Fitri Annisah Lubis
Published: March 2024

Pesatnya perkembangan teknologi saat ini sangat dirasakan oleh semua kalangan, baik kalangan pengusaha terutama unit usaha kecil ataupun unit kegiatan mikro. Banyaknya ilmu pengetahuan saat ini bisa didapatkan dari banyak sumber, baik dari buku, internet bahkan mengikuti kursus pelatihan. Adapun tujuan dari mempelajari ilmu pengetahuan tersebut adalah sebagai bekal dalam mendapatkan dan mengembangkan unit usaha tersebut. Dimana salah satu ilmu pengetahuan tersebut adalah editing video. Banyaknya aplikasi editing video yang dapat digunakan sebagai media promosi namun masih banyak yang belum paham dalam penggunaannya. Unit Dagang Rosnani Chan merupakan unit usaha yang memproduksi pembuatan sepatu. Biasanya hasil produksi tersebut akan dipajang pada toko dan didistribusikan kepada rekanan. Kurangnya Pemasaran kepada khalayak luas membuat barang yang di produksi tidak banyak dikenal oleh pembeli. Untuk itu Unit Dagang Rosnani Chan ingin membuat bagaimana pembeli dapat melihat produk mereka dalam bentuk visualisasi seperti pembuatan video promosi terhadap produk tersebut. Untuk itu Tim Pengabdian Kepada Masyarakat membuat pelatihan kepada karyawan dan pemilik Unit Dagang Rosnani Chan dalam pembuatan video promosi terhadap pengenalan produk sepatu menggunakan aplikasi VlogNow (VN). Aplikasi VlogNow (VN) merupakan aplikasi editing video yang bisa di jalankan pada smartphone, sehingga pengguna bisa lebih mudah dalam melakukan proses editing video. Hasil dari kegiatan pengabdian kepada masyarakat ini menghasilkan video promosi dari produk sepatu Unit Dagang Rosnani Chan yang kemudian di upload ke dalam Sosial Media Instagram agar produk tersebut dapat dikenal oleh masyarakat luas.
Pelatihan E-Marketing Kelopok Eks Pekerja Migran Mekar Harum Lestari Di Desa Bogangin Kecmatan Sumpiuh
Authors: Sri Purwati Atiek , Bambang  , Khotimah Sofiatul
Published: March 2024

Pelatihan E-Marketing ini mempunyai tujuan agar Eks pekerja Migran serta masyarakat di Desa Bogangin adalah dapat menerapkan metode pemasaran melalui E-Marketing sebagai upaya meningkatkan pangsa pasar produk olahan yang ada di Desa Bogangin Kecamatan Sumpiuh Kabupaten Banyumas khususnya anggota kelompok usaha Kripik Lokdes “Desmigratif”. Pelatihan E-Marketing diharapkan mampu meningkatkan keahlian masyarakat dalam menggunakan pemasaran berbasis E-Marketing melalui berbagai media sosial seperti Facebook, Instagram, Shopee, dan aplikasi lainnya yang dapat membantu dalam pelaksanaan E-Marketing. Metode pendekatan yang dilakukan untuk menyelesaikan permasalahan mitra melalui program yang telah disepakati bersama yaitu dengan metode pelatihan, dan metode pendampingan. Indikator dalam melihat pencapaian tujuan dilakukan melalui rancangan evaluasi dengan membandingkan tingkat pengetahuan dan kemampuan serta kinerja produksi dan pemasaran mitra sebelum dan sesudah program penerapan IPTEKS. Hasil pengabdian menunjukan bahwa terdapat kenaikan yang positif antara rata-rata nilai pre-test dan post-test yaitu sebelum mitra mendapatkan pelatihan dan setelah mitra mendapatkan pelatihan, kenaikan tersebut yaitu sebesar 4.6 point. Selain Itu, terdapat perkembangan penggunaan E-Marketing mitra yang tadinya hanya sebatas menggunakan Whatsapp dan Facebook, menjadi bertambah dengan menggunakan Whatsapp Bussines, Facebook, Instagram, Tiktok, dan Shopee. Hal tersebut tentunya berdampak pada hasil penjualan mitra yang mengalami kenaikan yaitu sebesar 3,23 kg
Sosialisasi Dan Pelatihan Sistem Informasi Pengelompokan Data Warga Desa Klambir Lima Kebun Dengan Design User Interface
Authors: Sri Handayani  , Randi Rian Putra
Published: March 2024

Sistem Informasi Pengelompokan Data Warga (SIPDW) Desa Klambir Lima Kebun telah dikembangkan dengantujuan meningkatkan efisiensi pengelolaan data penduduk dan mempermudah akses informasi bagi pemerintah desadan stakeholder terkait. Penelitian ini berfokus pada sosialisasi dan pelatihan SIPDW dengan pendekatan Design UserInterface (DUI) yang user-friendly. Pelatihan dilaksanakan untuk memperkenalkan fitur-fitur sistem serta memastikanbahwa pengguna dapat berinteraksi dengan sistem dengan mudah dan efisien. Melalui metode hands-on dan simulasilangsung, peserta diajarkan bagaimana cara input, pengelolaan, dan akses data warga. Hasil dari sosialisasi danpelatihan menunjukkan bahwa mayoritas pengguna merasa lebih percaya diri dalam menggunakan SIPDW danmengapresiasi desain antarmuka yang intuitif. Hal ini menegaskan pentingnya kombinasi antara sistem informasi yangkuat dengan desain antarmuka pengguna yang baik untuk meningkatkan adopsi teknologi di tingkat komunitas desa.
Toko Online Berbasis Web Dalam Mengenalkan Produk UMKM Pada Desa Suka Damai Kecamatan Kuala Kabupataen Langkat
Authors: Hendry  , Wasito Muhammad , Supiyandi
Published: March 2024

Pengabdian ini bertujuan untuk memberikan pelatihan pembuatan toko online berbasis website kepada masyarakat Desa Suka Damai sebagai bagian dari upaya meningkatkan promosi produk UMKM desa. Pelatihan ini dilaksanakan dengan metode praktis dan partisipatif, memungkinkan peserta untuk belajar dan mengimplementasikan toko online dalam konten produk UMKM desa secara langsung. Hasil dari pengabdian ini menunjukkan keberhasilan dalam meningkatkan pengetahuan dan keterampilan peserta terkait pembuatan website. Dengan penerapan teknik SEO yang tepat, produk desa menjadi lebih mudah ditemukan di hasil pencarian, meningkatkan eksposur produk desa secara digital. Dampak positif dari pelatihan ini dapat diamati dari peningkatan trafik web ke situs web desa, peringkat halaman yang lebih baik di mesin pencari, dan peningkatan interaksi pengguna dengan konten produk desa. Selain itu, pelatihan ini juga membuka peluang baru bagi masyarakat desa untuk memanfaatkan platform digital sebagai alat promosi yang efektif dan mendukung perkembangan ekonomi desa secara berkelanjutan.
Penerapan Model Pembelajaran Numbered Heads Together Dalam Meningkatkan Hasil Belajar Siswa SMP Cinta Budaya/Chong Wen
Authors: Ovani Purba Friska , Irwanoviana Nurul
Published: March 2024

Jurnal pengabdian ini mendokumentasikan implementasi Model Pembelajaran Numbered Heads Together (NHT) di SMP Cinta Budaya dengan tujuan meningkatkan hasil belajar siswa. Pendekatan pengabdian ini dilakukan melalui serangkaian kegiatan yang melibatkan guru dan siswa dalam pengenalan, pelatihan, dan implementasi Model NHT dalam proses pembelajaran. Penelitian dilakukan selama satu semester akademik dengan partisipasi siswa kelas VIII sebagai kelompok eksperimen.Pendekatan NHT diimplementasikan dengan membagi siswa ke dalam kelompok kecil, di mana setiap anggota kelompok memiliki nomor tertentu. Guru menyusun pertanyaan atau tugas yang mendorong kolaborasi dan pemikiran kritis. Selanjutnya, setiap kelompok menyepakati satu anggota yang akan menjawab pertanyaan tersebut. Pengumpulan data dilakukan melalui observasi kelas, wawancara, dan evaluasi hasil belajar siswa.Hasil pengabdian menunjukkan bahwa Model Pembelajaran NHT efektif dalam meningkatkan hasil belajar siswa di SMP Cinta Budaya. Terjadi peningkatan partisipasi siswa, motivasi belajar, dan pemahaman konsep. Implementasi model ini juga memberikan dampak positif pada interaksi sosial antar siswa. Temuan ini memberikan kontribusi pada pengembangan strategi pembelajaran berbasis kolaborasi di tingkat sekolah menengah pertama. Implikasi dari pengabdian ini adalah potensi peningkatan kualitas pembelajaran dan pencapaian akademis siswa melalui pendekatan yang melibatkan mereka secara aktif dalam proses belajar.
Ethnicize and Historicize: Thoughts on Anti-Racist Pedagogy and Post-Secondary Music History
Authors: Walker Margaret E.
Published: March 2024

The “unmarked whiteness” at the core of most Canadian and US university music programs is an example of racist policy. Anti-racist actions that identify, describe, and dismantle racism can be productively applied to music history courses by adopting strategies outlined in the work of Kyoko Kishimoto. By exploring knowledge production through the historiography of canonic music, challenging Eurocentrism by teaching Western music as “ethnic,” and dismantling the division of white and non-white musics into different disciplines, this article offers an approach to musicultural anti-racism.
Entrepreneurial orientation and SME export performance: Unveiling the mediating roles of innovation capability and international networking accessibility in the brass industry
Authors:   Master of Management Department. Universitas Muhammadiyah Yogyakarta. Brawijaya Road. Bantul. Yogyakarta City, 55183, Indonesia, e-mail: nuryakin@umy.ac.id, - Nuryakin
Published: March 2024

PURPOSE: This paper answered the research gap on entrepreneurial orientation with a sample of small and medium-sized enterprises’ (SMEs) export performance and the mediating role of innovation capability and international networking accessibility that has not been tested in previous research. This study also tested the effect of entrepreneurial orientation on SMEs’ export performance in the global market. The mediating role of international networking accessibility and innovation capability on SMEs’ export performance also became another focus of this study. METHODOLOGY: This paper implemented a quantitative approach with 282 owners or managers of the SMEs brass industry cluster in Boyolali, Indonesia, who were examined using purposive sampling. FINDINGS: The findings of this study revealed that entrepreneurial orientation did not significantly affect SMEs’ export performance but did significantly affect innovation capability and international networking accessibility. Another empirical test found that innovation capability had significantly affected SMEs’ export performance and the international networking accessibility. International networking accessibility also significantly affected the performance of export SMEs. This study also found an important mediating role of international network accessibility and innovation capability in the relationship between entrepreneurial orientation and SMEs’ export performance. IMPLICATIONS: This study contributes to research investigating the effect of entrepreneurial orientation on performance by conducting in-depth studies on innovation capabilities and international networking accessibility. Many studies have tested the mediating role of innovation capability and international networking accessibility. The practical implication of this study is that it can help managers or owners of SMEs better understand and find optimal solutions through enhancing innovation capability and international networking accessibility, which can be instilled in the characteristics of SME owners or managers to improve performance. ORIGINALITY AND VALUE: The results of this study indicate the mediating role of innovation capability and accessibility of international networking on SMEs’ export performance. Therefore, the main contribution of the study is to determine the mediating role of innovation capability and international network accessibility in the relationship between entrepreneurial orientation and performance by integrating the theoretical perspective of the resource-based view (RBV).
THE HIPPOPOTAMUS OF POXY. 9.1220 (THIRD CENTURY AD)
Authors: Roumpekas Dimitris
Published: March 2024

This article discusses the content of the private letter POxy. 9.1220, which provides information about the behaviour of hippopotamuses in the Nile region. The existence of the wild mammal in Oxyrhynchus is probably related to Thoeris’ cult in that city, while its occurrence in the text relates to its habit of raiding farm crops. This interpretation is supported by literary sources, but also by the sense of the verb ἀφανίζω, used to describe the animal’s behaviour, in current lexica of ancient Greek. Additionally, an examination of textual variants of the fragment dealing with the hippopotamus’ behaviour supports this interpretation and provides insights into animal-human interrelationship in Roman Egypt.
NO ‘GREAT’ FLAVIAN WOMEN? PROCESSES OF SILENCING IN ANCIENT SOURCES AND (EARLY) MODERN SCHOLARSHIP
Authors: Foubert Lien
Published: March 2024

Researchers routinely stress that, compared to the Julian-Claudian period, the Flavian period had no ‘great women’. But what do these researchers mean by ‘greatness’? This contribution examines processes of inclusion and exclusion of women in ancient, early modern and modern historical narratives about the Flavian period. Drawing on the conceptual frameworks advanced by Linda Nochlin and Michel-Rolph Trouillot, the article argues for more complex and more diverse grand narratives about Flavian women: instead of continuing the practice of making these women ‘invisible’, we would gain more by focusing on the subtleties of the act of silencing in both past and present.
BLURRING THE BOUNDARIES: EXPLORING THE INTERPLAY OF POETRY AND ART IN MOSCHUS’ EUROPA
Authors: Mistro Alessia Del
Published: March 2024

Moschus’ Europa demonstrates a sophisticated use of descriptive language that blurs the boundaries between ekphrasis and narrative. In the ekphrasis of Europa’s basket, Moschus brings movement to the static artwork, giving it a more significant role in the overall frame narrative. On the other hand, he freezes scenes in the frame narrative (I focus on the meadow and Zeus as a bull) and, through vivid description, affords the reader the sensation of viewing works of art. By using these techniques, Moschus acknowledges poetry’s artifice and profoundly enriches engagement with the text on aesthetic and interpretive levels.
Inteligentna dystrybucja
Authors: Mróz Maciej , Rodziewicz Tomasz
Published: March 2024

Aby transformacja energetyczna (TE) była możliwa, oprócz wykorzystania źródeł odnawialnych konieczne jest zastosowanie m.in. nowych technologii pomiarowych, komunikacyjnych i analitycznych. Efektywna transformacja nie zaistnieje bez inteligentnej sieci elektroenergetycznej. Prognozuje się, że do 2030 r. w Unii Europejskiej pojawi się kilkadziesiąt milionów pojazdów elektrycznych i pomp ciepła, nastąpi znacząca elektryfikacja transportu, przemysłu oraz sfery komunalnej. TAURON Dystrybucja S.A. od co najmniej kilku lat prowadzi wiele działań inwestycyjnych oraz badawczo-rozwojowych w tym obszarze. Jednym z przykładów jest projekt mikrosieci. Firma realizuje szereg inicjatyw wspierających rozwój inteligentnej infrastruktury sieciowej, zgodnie z założeniami Strategicznej Agendy Badawczej TAURON Dystrybucja S.A. Kluczowym zadaniem Spółki jest zapewnienie i utrzymanie wysokich standardów jakości energii elektrycznej w zmiennym otoczeniu dynamicznego rozwoju OZE. W tym celu konieczne będzie wytworzenie nowych narzędzi, które pomogą OSD w pełnieniu funkcji moderatora sieci. Komisja Europejska ogłosiła, że zamierza wspierać unijnych operatorów systemu przesyłowego (OSP) i operatorów systemu dystrybucyjnego (OSD) w procesie tworzenia cyfrowego bliźniaka (digital twin) europejskiej sieci elektroenergetycznej.
CrO2 monolayer: a two-dimensional ferromagnet with high Curie temperature and half-metallicity
Authors: Liu Bing-Xin , Li Zong-Liang ,   School of Physics and Electronics, Shandong Normal University, Jinan 250358, China
Published: March 2024

Owing to the complete spin-polarization of electronic states near Fermi energy, half-metallic ferromagnets, especially two-dimensional half-metallic ferromagnets, have garnered significant attention in the field of spintronics. However, the practical applications of these materials are greatly hindered by their low Curie temperatures. Therefore, the exploration of high Curie temperature half-metallic ferromagnets poses a necessary and challenging task. In this study, we predict a two-dimensional transition metal oxide, CrO2 monolayer, and employ first-principles calculations to investigate the crystal structure, electronic properties, magnetic ground state, and ferromagnetic phase transition. The calculations of phonon spectrum, elastic constant, and molecular dynamics simulations indicate that CrO2 monolayer is dynamically, mechanically, and thermally stable. The convex hull diagram of Cr-O systems shows that the hull energy of the predicted CrO2 layer is only 0.18 eV, further confirming the structural stability and large possibility for experimental fabrication. More importantly, the electronic and magnetic properties of CrO2 monolayer demonstrate that it is a two-dimensional ferromagnetic half-metal with wide band gap. Five d suborbitals are divided into Eg and T2g orbitals because of the crystal field of Cr atom in the center of O tetrahedron, and the spin-polarizations of Eg orbitals make a major contribution to the moment around Cr atom. The ferromagnetic coupling along Cr-O-Cr chain is dominated by the superexchange interaction bridged by O 2p orbitals, similar to the typical Mn-O-Mn superexchange model. The magnetic behavior of the Cr spin lattice in a CrO2 monolayer is described by a two-dimensional Heisenberg model, in which the exchange coupling anisotropy is ignored and the single ion anisotropy is the main consideration. By solving the Heisenberg model through using the Monte Carlo simulation method, the Curie temperature is determined to be over 400 K. The high Curie temperature ferromagnetism is rare in two-dimensional ferromagnetic materials and even rarer in semi-metallic materials, which makes it an ideal material for fabricating spintronic devices and studying spin quantum effects.
Potassium-mediated bacterial chemotactic response
Authors: Zhang Chi , Zhang Rongjing , Yuan Junhua
Published: March 2024

Bacteria in biofilms secrete potassium ions to attract free swimming cells. However, the basis of chemotaxis to potassium remains poorly understood. Here, using a microfluidic device, we found that
Escherichia coli
can rapidly accumulate in regions of high potassium concentration on the order of millimoles. Using a bead assay, we measured the dynamic response of individual flagellar motors to stepwise changes in potassium concentration, finding that the response resulted from the chemotaxis signaling pathway instead of the motor response to changes in the proton motive force (PMF). To characterize the chemotactic response to potassium, we exposed the bacteria to a range of potassium concentrations and measured the dose-response curve and adaptation kinetics via a FRET assay, finding that the chemotaxis pathway exhibited a sensitive response and fast adaptation to potassium. We further found that the two major chemoreceptors Tar and Tsr respond differently to potassium. Tar receptors exhibit a biphasic response, whereas Tsr receptors respond to potassium as an attractant. These different responses were consistent with the responses of the two receptors to intracellular pH changes. Therefore, bacteria may sense the change in potassium concentration by sensing the change in intracellular pH. The sensitive response and fast adaptation allow bacteria to sense and localize small changes in potassium concentration. As the ratio of the two major chemoreceptors changes with bacterial growth stages, the differential responses of Tar and Tsr receptors to potassium suggest that cells at different growth stages respond differently to potassium and may have different requirements for potassium.
Tgfbr1 regulates lateral plate mesoderm and endoderm reorganization during the trunk to tail transition
Authors: Lozovska Anastasiia , Casaca Ana , Novoa Ana , Kuo Ying-Yi , Jurberg Arnon D , Martins Gabriel G , Hadjantonakis Anna-Katerina , Mallo Moises
Published: March 2024

During the trunk to tail transition the mammalian embryo builds the outlets for the intestinal and urogenital tracts, lays down the primordia for the hindlimb and external genitalia, and switches from the epiblast/primitive streak (PS) to the tail bud as the driver of axial extension. Genetic and molecular data indicate that Tgfbr1 is a key regulator of the trunk to tail transition. Tgfbr1 has been shown to control the switch of the neuromesodermal competent cells from the epiblast to the chordoneural hinge to generate the tail bud. We now show that in mouse embryos Tgfbr1 signaling also controls the remodeling of the lateral plate mesoderm (LPM) and of the embryonic endoderm associated with the trunk to tail transition. In the absence of Tgfbr1, the two LPM layers do not converge at the end of the trunk, extending instead as separate layers until the caudal embryonic extremity, and failing to activate markers of primordia for the hindlimb and external genitalia. The vascular remodeling involving the dorsal aorta and the umbilical artery leading to the connection between embryonic and extraembryonic circulation was also affected in the Tgfbr1 mutant embryos. Similar alterations in the LPM and vascular system were also observed in Isl1 null mutants, indicating that this factor acts in the regulatory cascade downstream of Tgfbr1 in LPM-derived tissues. In addition, in the absence of Tgfbr1 the embryonic endoderm fails to expand to form the endodermal cloaca and to extend posteriorly to generate the tail gut. We present evidence suggesting that the remodeling activity of Tgfbr1 in the LPM and endoderm results from the control of the posterior PS fate after its regression during the trunk to tail transition. Our data, together with previously reported observations, place Tgfbr1 at the top of the regulatory processes controlling the trunk to tail transition.
Laboratory evaluation of a bio-insecticide candidate from tangerine peel extracts against Trialeurodes vaporariorum (Homoptera: Aleyrodidae)
Authors: Flores Nancy , Prado Julia , Espin Rosario , Rodríguez Hortensia , Pais-Chanfrau José-Manuel
Published: March 2024

Background

The excessive use of synthetic insecticides in modern agriculture has led to environmental contamination and the development of insect resistance. Also, the prolonged use of chemical insecticides in producing flowers and tomatoes in greenhouses has caused health problems for workers and their offspring. In this study, we analyzed the efficacy of mandarin peel (Citrus reticulata L.) essential oil (EO) as a natural insecticide against greenhouse whitefly (Trieurodes vaporariorum W., Homoptera: Aleyrodidae), a common pest in greenhouse production of different crops.

Methods

Petroleum ether (PET) and n-hexane (HEX) were used as solvents to extract essential oil (EO) from tangerine peels.

Results

The yield of EO was 1.59% and 2.00% (m/m) for PET and HEX, respectively. Additionally, the insect-killing power of EO was tested by checking how many greenhouse whiteflies died at different times. The results showed that PET and HEX extracts of tangerine EO effectively controlled greenhouse whiteflies. Furthermore, with both solvents, a 12.5% (v/v) application was as practical as the commercial insecticide imidacloprid. Further characterization tests with the polarimeter, FTIR, HPLC-RP, and GC-MS showed that the essential oil (EO) contained about 41% (v/v) of d-limonene and that this compound may be responsible for the observed insecticidal properties.

Conclusion

Therefore, tangerine peel essential oil is an excellent botanical insecticide candidate for controlling greenhouse whiteflies.
Exploring the effects of a mixed writing feedback model integrating artificial intelligence on primary learners english graphophonemic awareness
Authors:   , Pearsall Charlotte Rose
Published: March 2024

This mixed-methods action research project aimed to improve graphophonemic awareness through a mixed writing feedback model in second-grade English students within a multilingual classroom at an international school in Santiago, Chile. The reasons for the students' lack of graphophonemic awareness includes the mix of first languages and issues during early literacy acquisition during the pandemic in online classes. Students took pre-tests and post-tests and over two intervention cycles, students composed spontaneous texts, which received writing corrective feedback from their peers, teacher, and artificial intelligence. The study's outcomes demonstrated that a mixed writing feedback model improved students' graphophonemic awareness, increased writing motivation, and improved students’ self-perceptions of spelling competence. Additionally, the study revealed that while spelling errors vary among first language groups, the ə/, /ɪ/, and /eɪ/ phonemes present the most challenging sounds for students when spelling.
Acute Dystonia Associated with Low-Dose Aripiprazole in a Male Child: A Case Report
Authors: Udey Bharat , Singh Jawahar , Bhatia Jagriti
Published: March 2024

Aripiprazole is a newer anti-psychotic agent with low liability for Extrapyramidal Symptoms (EPS). Acute dystonia develops due to a lack of dopamine, resulting in a relative overactivity of cholinergic neurons. In the past, cases of Aripiprazole-induced acute dystonia have been reported more frequently among adults than children. Here, the authors present a case in which acute dystonia developed at a very low dose (2 mg) of Aripiprazole. The case involves a 10-year-old boy diagnosed with Oppositional Defiant Disorder (ODD) who exhibited aggressive behaviour and irritability. Aripiprazole (2 mg) was initiated for treatment, but after five days, the patient developed excessive sleepiness, slurred speech, oculogyric crisis, and torticollis, indicative of acute dystonia. To rule out any organic causes, a detailed assessment and investigations were conducted, including complete blood counts, liver and kidney function tests, serum calcium, electrolytes, ceruloplasmin, blood copper levels, slit-lamp examination for Kayser-Fleischer ring, and electroencephalography, which did not reveal any significant organic conditions. Aripiprazole was discontinued, and Promethazine was administered. The dystonia score on the Unified Dystonia Rating Scale (UDRS) decreased from 10 to 0 in 5 days, indicating complete resolution of dystonia. Naranjo’s causality assessment score was seven, reflecting the probable association of aripiprazole with acute dystonia. This case emphasises the importance of monitoring for adverse reactions to anti-psychotic medications, particularly in paediatric patients, and the need for prompt recognition and management of adverse effects to ensure patient safety and treatment efficacy. To the best of our knowledge, this is the first case report of acute dystonia in a child at such a low dose of Aripiprazole. Clinicians should be vigilant for the emergence of such significant adverse effects of commonly used drugs.
An Economic Analysis of Tuberose Marketing from Akola District, Maharashtra, India
Authors: Gadakh A. S. , Shedge R. V. , Nikam Y. R.
Published: March 2024

The present study was conducted in Akola district of Maharashtra state for the period 2018-19. For the study of marketing data was collected from 10 village traders, 10 wholesalers and 10 retailers, thus overall 30 trader were selected randomly about price spread, labour charges, transportation costs, commission charges, other charges if any and also the price received by them during the year 2018-2019 based on primary data. In tuberose marketing channel, producer, wholesalers and retailer were selected for collecting the information on marketing. Producer – wholesaler – Retailer – Consumer was the important channel through which maximum quantity was sold by the cultivators. In case of tuberose, the producer’s share in consumer’s rupee was highest in channel-I i.e., 96.31 per cent. The channel-I was most profitable than channel II and channel III. The price spread was observed highest in case of channel III i.e., Rs 17.40. The major constraints faced by tuberose cultivators overall level was Low rate of flower in the market, High commission charges, Lack of organized market and transportation.
Effect of Transplanting Date and Harvesting Period on Bulb Production of Winter Onion (Allium cepa L.)
Authors: Islam Md. Riazul , Rahman Md. Atikur , Fahim Abu Hena Faisal , Alam Md. Ashraful , Saif Hasib Bin , Hasan Shahriar , Obaidullah Abu Jafor Mohammad
Published: March 2024

Climate change has brought about unpredictable temperature fluctuations and altered rainfall patterns, which directly impact onion cultivation. Adjustment in planting and harvesting schedules in the context of changing climate and environmental factors is not only academically significant but also holds practical implications for agriculture, resource management, climate adaptation, economic development, and food security in Bangladesh. The present study was carried out to observe the influence of the transplanting and harvesting time on maximizing onion production. The experiment followed a RCB design with three replications, involving the cultivation of BARI Piaz-1 as the test crop with varying transplanting dates on November 1st, November 15th, and December 1st, and harvesting periods at 120, 130, and 140 days after planting (DAP). The study's results indicated that the choice of transplanting date and harvesting period had significantly influenced onion yield and yield attributes. Improved performances, including increase in plant height, number of leaves per plant, neck diameter, bulb diameter, bulb length, bulb weight, and overall yield were observed when onions were transplanted on November 15th and harvested after 130 days from planting. The highest yields, specifically 10.32 t/ha in 2018 and 11.33 /ha in 2019, were achieved under this conditions. Conversely, the lowest yields 6.28 t/ha in 2018 and 6.70 /ha in 2019 were obtained when onions were transplanted on December 1st and harvested after 120 days from planting. Additionaly, early planting (November 1st) exhibited a higher incidence of bolting, while late planting (December 1st) showed a higher disease incidence. Therefore, optimizing transplanting dates to align with November 15th and a 130-day harvesting period proved to be the most effective strategy for maximizing onion yield and other attributes, while late planting and early harvesting adversely affected these key attributes.
Process Optimization in Manufacturing Industries Using Simulation Technologies
Authors: Okuyelu Olanrewaju M. , Doskenov Bakhtiyar , Aribike Remilekun
Published: March 2024

The industrial application and importance of simulation technologies for process optimization in manufacturing industries cannot be underestimated. Adequate monitoring of raw materials processing to finished products and their conveyance to the end users is required together with profits and cost optimization to ensure the company attained the set goals. Thus, it is imperative to adopt the use of simulation-based optimization tools. This paper succinctly discussed the  importance of simulation-based optimization technologies as effective techniques in manufacturing industries. The concept of process optimization, simulation and simulation techniques as related to manufacturing were discussed. Various techniques of simulation-based optimization in manufacturing were presented. These include Monte Carlo simulation, discrete event simulation and system dynamics. Also, typical examples of manufacturing optimization techniques were stated. These include Just-in-Time, statistical process control, total quality management, six sigma, value stream mapping and computer numerical control. Various applicable areas of simulation-based optimization technologies in manufacturing were also addressed.  However,  resistance  to change, lack of expertise, lack of data, unintended consequences, over-reliance on technology and insufficient testing are the associated problems to simulation-based optimization in manufacturing. In conclusion, relevant simulation-based optimization technologies should be adopted by various manufacturing companies to ensure profit maximization while still keeping the chain between production of good and supply to customers intact.
Sugarcane: A Climate Resilient Devine Crop
Authors: Thorat B. S. , Pawar G. R. , Sushir K. V. , Talekar S. D. , Repale J. M. , Kadlag A. D.
Published: March 2024

Worldwide increasing demands of food, fodder, fuel and other bio-chemicals for erratically increasing population, urbanization and industrialization. Only sugarcane (Saccharum spp.) has great potential as a major feedstock for sugar, biofuel and allied related production. Sugarcane is the lead driver for production of sugar and sweeteners globally. It is considered among the best options and replace the fossil fuels for production of biofuels today due to an exceptional biomass production capacity, high carbohydrate (sugar + fiber) content, and a favourable energy input/output ratio. The conversion of sugarcane biomass into fermentable sugars for second-generation ethanol production is a promising alternative to meet future demands of biofuel production in the world. Biofuels have gained much importance due to the depleting fossil fuel resources and the over-accumulation of CO2 and other greenhouse gases in the environment. Biofuel and paper production from sugarcane can be achieve the targets to replace fossil fuels to scavenge carbon dioxide released into the atmosphere and to attain environmental and economic sustainability. Fermentable sugars (40-60%) of molasses which is diluted with distilled water and by fermentation process (Saccharomyces cerevisae) produce rum (wine). Application of sugarcane by-products, such as press mud, vinasse and bagasse, to improves chemical, physical, and biological properties of soil and enhanced the crop quality and yield. For transfer the live micro-organism from agar slant of laboratory to rhizosphere then sugar press mud play key role in formulating microbial inoculant as suitable carrier. Food yeast Torulopsis utilis, is prepared from molasses used as baker’s and brewer’s yeast in bakery industry. Sugarcane improves the economy of rural population by providing lead source of fodder for livestock management as a sugarcane tops and by-products of sugarcane (molasses treated with urea, mineral mixture treated sugarcane top hays etc.). Scientific interventions have not only helped to improve the cane crop but industrial procedures have also been upgraded resulting in improved production of biofuel, paper, wine etc and other sugarcane by-products used to improve the economy of rural and urban population. However, building a bridge between science and industry requires investments in research, development and transfer of new technologies to the industry as well as specialized personnel to deal with new technological challenges.
Evaluation of the Effect of 2022 Flooding on Business Activities in Lokoja Metropolis
Authors: Emmanuel Chinanuife , Reuben Ata-Awaji Anthony , Emmanuel Omula , Faith Agemerien
Published: March 2024

Flooding has become a global issue and its effect varies with the level of flooding at a given period. In the wake of urban floods, public and commercial institutions are currently finding it difficult to develop and assess risk management and adjustment methods that include land use planning and urbanization patterns in addition to systems for flood prevention and early notifications. Flooding is one of the negative effects of global warming and most countries in the world are making effort to reduce its associated effects. This study examined the effect of 2022 flooding on business activities in Lokoja Metropolis. The study used a survey research design and a Taro Yamani sample size selection method to select 400 respondents. Questionnaire was administered to the respondents based on simple random selection and the data was analysed using Analysis of Variance (ANOVA) regression. The findings show that 2022 flooding exerts negative and statistically significant effect on business activities. there was low business patronage and high cost of goods during the flood period.  Also, the findings show that small businesses were mostly affected during the flood period than large businesses. The study therefore recommends dredging of the River Niger and River Benue to increase water holding capacity. Also, there should be enactment of laws against building or citing of businesses along flood route to reduce the level of damages during flooding
Vibration tests and analysis of a model arch dam
Authors: Balsara Jimmy P. , Norman C. Dean
Published: March 2007

Vibration tests were conducted on a 1/24‐scale model of the North Fork Dam, a double‐curvature arch dam, to determine natural frequencies, mode shapes and hydrodynamic pressures. The mode shapes and natural frequencies were determined from tests using two vibrators mounted on the crest of the dam. Hydrodynamic pressures at the dam/reservoir interface were determined from tests in which the vibrator was attached to the downstream foundation of the dam. The hydrodynamic pressures calculated using Westergaard's theory and a theory for arch dams developed by Perumalswami and Kar accurately predicted the measured pressure at frequencies below the first mode frequency of the dam. The differences in the two theories were insignificant.

The Structural Analysis Program (SAP), a linear three‐dimensional (3‐D) finite element code, was used to compute mode shapes and frequencies for the dam with its base fixed and with a foundation. Numerical solution schemes used in the finite element analysis consisted of a Ritz analysis and a subspace iteration method. Calculations were conducted for both full and empty reservoir conditions.

The accuracy of the Ritz analysis improved considerably as more nodes in flexible regions of the dam were loaded. However, the lowest eigenvalues were computed using the subspace iteration method. For the full reservoir, the natural frequencies decreased by 20‐30 per cent when the foundation was included in the finite element model. The difference was less when the reservoir was empty. The calculations using the subspace iteration scheme and including the foundation agreed closely with experimental mode shapes and corresponding natural frequencies.
Torsional response of structures to obliquely incident seismic sh waves
Authors: Luco J. E.
Published: March 2007

A study is made of the torsional response of an elastic structure placed on a rigid circular foundation supported on an elastic half‐space and subjected to the action of obliquely incident plane SH waves. The problem is solved by considering first the steady‐state response of a massless rigid foundation excited externally by a harmonic torque and through the soil by an obliquely incident plane SH wave. In a second stage the coupling between the structure and the soil is considered to obtain the torsional response at the base and top of the superstructure. The results obtained indicate a range of conditions under which the torsional effects will be most pronounced.
Vibrations of a nuclear power station charge hall
Authors: Jeary A. P. , Irwin A. W.
Published: March 2007

In an effort to determine the nature and size of the response of unusually shaped power station buildings, an investigation of one power station building has been made, both theoretically and experimentally. The dynamic response of the structure to wind excitation has been monitored, analysed and compared with theoretical values obtained from an analysis of a simplified structure. The shapes of pure modes of vibration are consistent with the predicted shapes, and correlation between measured and predicted frequency is better than 10 per cent. Damping measurements from the experimental study are included where the signal/noise ratio permitted, and these were found to be in a range that is consistent with values found in other types of steel construction.
THE CHRONOLOGICAL CONTEXT OF THE CENTRAL JALISCO SHAFT TOMBS
Authors: Beekman Christopher S.
Published: March 2007

The shaft tomb mortuary tradition is an archaeological construct that encompasses a diverse array of burial practices, many of which now seem to reflect local variations in specific treatments of the dead. Distinctive characteristics of shaft tombs in the Tequila valleys of central Jalisco include the high degree of labor invested in tomb construction, the wealth of offerings found within the tombs, and the occasional association of the tombs with the circular public architecture known as the Teuchitlan tradition. These characteristics have led some researchers to see the Tequila valleys as the “core” of the shaft tomb tradition, in which mortuary practices were most dramatically employed to demonstrate social distinctions. Weigand's survey beginning at the end of the 1960s was designed to understand the settlement system associated with the burial tradition. Various constraints led to the use of surface materials and materials found in looters' pits to associate ceramics with tombs and public architecture. This article discusses ongoing research on the ceramic chronology of the eastern Tequila valleys and specifically those phases that span the use of shaft tombs as a high-ranking form of burial. We can discern three phases across the period of the Late Formative through the Middle Classic.