bluuebunny/crossref_metadata_2025 huggingface dataset:
IRLR: an Improved Reinforcement Learning-Based Routing Algorithm for Wireless Mesh Networks
Authors: Binh Le Huu , T. Vo Tu , Huy Le Duc
Published: August 2024

Reinforcement learning-based routing (RLR) in wireless mesh networks has recently attracted the attention of several research groups. Several recent studies have demonstrated that RLR provides higher network -greedy policy toperforms better than traditional routing protocols. In most RLR protocols, nodes use an select data transmission routes and update their Q-value tables. With this policy, the best route is chosen with a high probability, corresponding to the exploitation phase. The remaining routes are chosen with low -greedy policy in RLR protocolsprobability, corresponding to the exploration phase. A challenge with the is that data packets transmitted in the exploration phase have a high dropped probability or a large end-toend delay because they traverse long routes. In this paper, we propose an improved RLR for wireless mesh -greedy policy in RLR bynetworks to further improve its performance. Our approach is to improve the generating additional control packets for transmission in the exploration phase. All data packets are transmitted during the exploitation phase. Simulation results using OMNeT++ showed that he posed algorithm increases packet delivery ratio by an average value from 0.2 to 0.6%, and uces latency with an average value from 0.20 to 0.23 ms compared to the basic reinforcement learning-based routing algorithm.
Enhancing Everyday Interactions: The Future of Ambient Intelligence
Authors: Samal Partha Sarathi
Published: August 2024

Ambient Intelligence (AmI) signifies a significant advancement in integrating technology into everyday environments, resulting in spaces that are both aware of and responsive to their occupants. This paper delves into the transformative possibilities of AmI, brought to life through the synergy of ubiquitous computing, artificial intelligence, and the Internet of Things (IoT). It examines the foundational technologies that support AmI, including sensing and data collection, data processing and analysis, and communication networks. The discussion extends to practical applications in smart homes, healthcare, and smart cities, emphasizing AmI's potential to improve daily life and operational efficiency. The paper also addresses critical challenges such as privacy, security, interoperability, and user acceptance, which are essential for realizing the full benefits of AmI. This comprehensive overview aims to deepen understanding and encourage further innovation in developing intelligent environments that anticipate and fulfill human needs.
Trial of a Family Resilience Instrument with the Rasch Model for Families in the Special Region of Yogyakarta
Authors: Ani Ani , Dwiningrum Siti Irene Astuti , Astuti Budi
Published: August 2024

This study aims to develop an instrument/scale to measure family resilience. A sample of 265 families in the Special Region of Yogyakarta was established using the random sampling technique, with the criteria of families in the Yogyakarta area served by the Office of Religious Affair (KUA), and those who have the Pusaka Sakinah program (Sakinah Family Service Center). The data analysis used Aiken's V content validity coefficient and construct validity used Rasch model analysis. The results of Aiken's V coefficients by three experts show a value range of 0.802. This means that the items in the instrument have a high coefficient for measuring family resilience. In addition, the results of the Rasch model analysis show that the item person has a reliability of 0.97 and the item separation has a reliability of  6.03, which means that the measuring instrument has a good function because it has a range of varying degrees of difficulty. Meanwhile, the subject has a reliability of 0.91 and a person separation has a reliability of 3.17. This shows that the character of the subject varies according to the profile of the respondents who come from various educational backgrounds. All items are valid and reliable for measuring the right construct.
FINANCIAL INCLUSION REVOLUTION IN INDIA: A DECADE OF PROGRESS WITH PMJDY EMPOWERING MILLIONS
Authors: Kurussiveettil Reshma , Karuppanagounder Kanniammal
Published: August 2024

The Pradhan Mantri Jan Dhan Yojana is a noteworthy initiative aimed at improving financial inclusion in India (PMJDY). "Rural India," in particular, is empowering the long-marginalized economically disadvantaged element of society. The PMJDY's ability to swiftly expand financial inclusion by providing basic banking services to millions of previously unbanked individuals is essential to its success as it fosters inclusive growth and economic empowerment in India. This research attempts to explore the many government initiatives and RBI regulations that have allowed India's Financial Inclusion Revolution, in addition to showcasing PMJDY's ten-year success story. This studyprovides a thorough evaluation of the program's successes and shortcomings. The study offers several noteworthy contributions, such as a detailed analysis of the program's impact on empowering rural, a critical look at the integration of digital financial services, and a nuanced understanding of regional differences in account usage. Although PMJDY has greatly expanded banking access, the findings indicate that specific policy measures are required to close ongoing gaps and guarantee long-term financial inclusion.
The role of joining words and hashtags techniques in advancing ideological constructs and identity formation in women's magazines: a critical analysis
Authors: Maoncha Job , Mahero Evelyn , Mwithi Florence
Published: August 2024

This journal article explores hashtags and joining words as linguistic tools in women's magazines to advance ideologies and identities. Drawing upon findings from the study on the discourse of ideology and identity among women, the study identifies a gap in the analysis of linguistic strategies in women's magazines and addresses this gap using data from The Parents Magazine in Kenya. This magazine focuses on issues of Kenyan women's lives, and its content includes stories on relationships, inspiration, family, health education, real-life experiences, spiritual guidance, social heroes and models, and financial management. Data from the study revealed that this magazine employed various linguistic strategies in their textual content. Therefore, this paper explored hashtags and joining words and their impact. Through a qualitative research design and utilising Critical Discourse Analysis and Multi-modal Discourse Analysis theories, the research focused on articles highlighting movements addressing femicide in Kenya and environmental activism. It analysed the use of movement names, hashtags, and joining words. Findings highlight the strategic use of joining words and hashtags in constructing ideologies within the context of activism, environmentalism, and mental health, making complex narratives accessible, engaging to broader audiences, forming collective identities, and framing issues. The research underscores the transformative potential of joining words and hashtags in advancing ideological agendas and fostering collective action. It recommends further interdisciplinary exploration of linguistic features in media, emphasising their sociocultural implications and potential for driving social change.
Centroamérica
Authors: Torres R. Edelberto
Published: August 2024

No abstract available.

ECA Estudios Centroamericanos, Vol. 41, No. 456, 1986: 879-897.
Carta abierta a la Comisión Nacional de Reconciliación de El Salvador
Authors: ECA: Estudios Centroamericanos
Published: August 2024

No abstract available.
 
ECA Estudios Centroamericanos, Vol. 42, No. 466-467, 1987: 539-545.
Costa Rica
Authors: Solís Rivera Luis Guillermo
Published: August 2024

No abstract available.
 
ECA Estudios Centroamericanos, Vol. 42, No. 466-467, 1987: 547-555.
Análisis jurídico político del documento de Esquipulas II
Authors: Departamento de Ciencias Jurídicas
Published: August 2024

No abstract available.

ECA Estudios Centroamericanos, Vol. 42, No. 466-467, 1987: 563-570
The Role of Leadership in Shaping Librarians' Job Performance in Academic Settings
Authors: Faith Mesagan Olanike
Published: August 2024

The role of librarians within academic institutions has garnered increasing attention due to their important position in facilitating information access and knowledge dissemination. Therefore, the study focused on librarians’ leadership style as correlate of job performance among academic librarians in southwest Nigeria. Correlation design was used with population of 84 librarians. A stratified random sampling technique was used to select the respondents. Mean score ( ), standard deviation (SD), and regression was used for data analysis. The findings indicate a high prevalence of laissez-faire leadership style, a weak positive correlation between laissez-faire leadership and job performance, a moderate relationship between instructional leadership and job performance, and a weak positive relationship between servant leadership style and job performance. Suggestions include create a supportive work environment that encourages creativity, recognizes employees' achievements, prioritizing styles that promote accountability, increase productivity, and improve communication channels. Implementing motivating methods to encourage personnel and enhance their output, providing regular training, and prioritizing their well-being will lead to increased job satisfaction and organizational productivity in the long term.
PENGALAMAN RELAWAN PERAWAT KREKI DALAM INOVASI SISTEM PENANGGULANGAN GAWAT DARURAT TERPADU (SPGDT) DI KOTA MEDAN TAHUN 2024
Authors: Hutajulu Johansen , Octavia Yunida Turisna , Ompusunggu Tanti Y.
Published: August 2024

Komunitas Relawan Emergensi Kesehatan Indonesia (KREKI) merupakan komunitas relawan tanggap darurat kesehatan berbasis teknologi informasi. Tujuan KREKI adalah membantu program Sistem Tanggap Darurat Terpadu (SPGDT) dalam meningkatkan kualitas dan kecepatan pertolongan pertama bagi masyarakat dan orang terdekat dalam keadaan darurat dengan menggunakan aplikasi IT. Anggota KREKI meliputi tenaga kesehatan dan masyarakat umum (individu dan komunitas) yang peduli terhadap keadaan darurat kesehatan. KREKI didirikan di Jakarta, Indonesia, pada tanggal 5 Desember 2018, bertepatan dengan Hari Relawan Sedunia. KREKI dirancang untuk bekerja dengan program Sistem Tanggap Darurat Terpadu (SPGDT) untuk mempercepat dan meningkatkan pertolongan pertama darurat. Dalam situasi darurat, faktor yang paling penting adalah waktu. Kecelakaan, penyakit akibat gaya hidup tidak sehat, dan bencana alam merupakan contoh situasi darurat yang dapat ditangani oleh KREKI. Keadaan tersebut dapat terjadi pada siapa saja, kapan saja, dan di mana saja. Penelitian ini merupakan penelitian kualitatif eksploratif dengan pendekatan studi kasus. Populasi dalam penelitian ini adalah seluruh perawat relawan yang termasuk kedalam komunitas KREKI di Kota Medan yaitu sebanyak 22 orang dan jumlah Perawat sebanyak 6 orang. Berdasarkan hasil uji Nvivo 12 Plus di dapatkan 4 tema yaitu penggunaan aplikasi kreki, pelaksanaan kreki, program dan pengembangan kreki dan sistem spgdt. Tema pertama memiliki 3 subtema, tema kedua memiliki 3 subtema, tema ketiga memiliki 3 subtema dan tema ke empat memiliki 2 subtema. Saran dapat mengembangkan riset keperawatan dimana data yang di temukan dalam penelitian ini dapat di gunakan sebagai masukan untuk penelitian selanjutnya.
PENGEMBANGAN SISTEM INFORMASI RESTORAN
Authors: Salim Rinrin Meilani
Published: August 2024

Pengelolaan data yang baik pada sebuah restoran sangat diperlukan untuk dapat bersaing dan bertahan di dunia bisnis. Salah satu yang dapat membantu pengelolaan tersebut adalah sistem informasi restoran. Sistem informasi restoran dibutuhkan untuk mempercepat pencatatan pesanan pelanggan, tagihan ke pelanggan, bahkan mencatat data bahan baku, pengeluaran sampai menghasilkan laporan laba rugi pada sebuah restoran. Dengan memanfaatkan sistem informasi restoran, sebuah restoran dapat meningkatkan pelayanan kepada pelanggan dan mempermudah pengambilan keputusan oleh pihak manajemen. Kata kunci : Sistem informasi restoran, Restoran, Peningkatan pelayanan restoran
Tanpa Tatap Muka Pengajuan Proposal Judul Skripsi Mahasiswa Tetap Lancar melalui website
Authors: Hutagalung Dini M
Published: August 2024

Penelitian ini ditujukan untuk membuat atau membangun suatu system pengajuan proposal skripsi melalui website dan disimpan dalam bentuk database agar pengajuan proposal skripsi yang selama ini diproses secara manual dengan mengisi form pengajuan proposal juduk skripsi memakan waktu yang cukup lama dan tidak efisien. Maka penulis melakukan penelitian dengan menggunakan kondisi di lingkungan institusi sendiri untuk menganalisa system seperti apa yang akan dibangun. Berdasarkan analisa, maka penulis membuat suatu website yang terhubung dengan database. Aplikasi tersebut dibangun dengan menggunakan PHP dan MySQL. Aplikasi yang dibangun sebatas menyimpan judul proposal, kekurangan aplikasi yang dibangun adalah belum adanya database judul skripsi. Ke depannya system dapat dikembangkan sehingga dapat dijadikan database untuk memeriksa apakah suatu proposal judul sudah pernah diajukan atau belum.
Kata Kunci : MySQL, PHP, proposal, Skripsi
Aplikasi Pengolahan Data Akademik Fakultas Ilmu Kesehatan di Sumatera Utara
Authors: Lubis Juanda Hakim
Published: August 2024

Di dalam sebuah institusi pendidikan penting adanya pengolahan data akademik yang transparan. Transparan ini dalam arti mahasiswa berhak mengetahui hasil akademik mereka selama proses pembelajaran di suatu institusi pendidikan tertentu. Pengolahan data akademik disini tidak hanya mencakup pengolahan nilai, tetapi juga pengolahan data kehadiran mahasiswa, jadwal kuliah, dan lain-lain. Pengolahan data akademik di Fakultas Ilmu Kesehatan di Sumatera Utara sampai saat ini masih dilakukan secara manual dengan penyimpanan data masih dalam excel, sehingga data yang ada tidak terorganisir dengan baik.
Dibutuhkan suatu cara dimana masalah seperti pengolahan data nilai, data kehadiran yang disebutkan di atas dapat ditangani dengan baik dan mahasiswa dapat dengan mudah melihat hasil akademik mereka. Oleh karena itu, aplikasi ini dibangun untuk membantu kegiatan pengolahan data akademik di Fakultas Ilmu Kesehatan di Sumatera Utara. Walaupun terdapat komputer sebagai penyimpan data, pada kenyataannya pengolahan data akademik masih memiliki hambatan. Untuk itu, diperlukan aplikasi yang dapat menangani pengolahan data akademik. Hasil dari aplikasi ini merupakan sebuah aplikasi yang dapat mendukung kegiatan pengolahan data akademik di Fakultas Ilmu Kesehatan di Sumatera Utara. Aplikasi ini dibangun menggunakan model Waterfall. Dimplementasikan menggunakan bahasa pemrograman Java dengan menggunakan Database PostgreSQL dan software pendukung lainnya.
 
Kata kunci: nilai, kehadiran, waterfall, java, postgreSQL
SISTEM INFORMASI PENGGAJIAN DOSEN HONORER BERBASIS DEKSTOP DI UNIVERSITAS SARI MUTIARA INDONESIA
Authors: Damanik Burhanuddin
Published: August 2024

Universitas Sari Mutiara Indonesia adalah perguruan tinggi swasta yang terletak di medan. Aktivitas penggajian di Universitas Sari Mutiara Indonesia mengunakan pekerjaan yang perlu ketelitian tinggi. Jika aktivitas ini dilakukan dengan menggunakan Microsoft Excel memerlukan waktu lama, karena Microsoft Excel penggunaannya kurang efisien dan tidak menyimpan data dalam basis data. Penggajian dosen honorer merupakan salah satu proses dalam organisasi yang rentan terhadap masalah. Pengolahan data yang lambat dapat mengakibatkan lambatnya penyajian informasi sehingga dimungkin keterlambatan pembayaran gaji. Ditambah lagi jika terjadi kesalahan perhitungan dapat menjadikan informasi menjadi tidak akurat. Pada penelitian ini penulis menggunakan pemograman visual basic studio dan sql server. Dengan menggunakan sistem ini maka dapat mempermudah pengolahan data honorer di Universitas Sari Mutiara Indonesia.
KOMPRESI DAN PENGAMANAN CITRA MENGGUNAKAN LOSSLESS CHAOS-BASED CRYPTO COMPRESSION SCHEME
Authors: Megawan Sunario , Pardosi Irpan Adiputra , Chaiyanda William , Rivandy Louis Adam , Joshua Joshua
Published: August 2024

Pada era digital sekarang ini, citra digital mudah disimpan atauditransmisikan melalui saluran publik sepertiinternet.Pengiriman citra melalui saluran publikrawan akses ilegal dan dapat merugikan pemilik citra digital. Selain masalah keamanan, masalah lain yang muncul adalah ukuran citra yang besar dapat memboros penggunaan kapasitas penyimpanan.Metode yang dapat digunakan untuk melakukan kompresi dan sekaligus pengamanan terhadap citra adalah metode Lossless Chaos-Based Crypto Compression Scheme. Metode ini melakukan kompresi terhadap citra dengan menggunakan metode Arithmetic Coding (AC) yang telah dimodifikasi dengan adanya tambahan penggunaan kunci untuk mengacak hasil AC, sehingga hanya orang-orang tertentu yang dapat mendekripsi dan mendekompresi citra kembali ke awal. Pengacakan dilakukan dengan menggunakan Logistic Map (LM) pseudo random bit generator untuk membangkitkan bit acak yang akan mengacak hasil kompresi dari metode AC.Hasil penelitian berupa aplikasi yang dapat digunakan untuk mencegah akses ilegal terhadap citra digital yang bersifat rahasia dengan cara melakukan proses enkripsi terhadap citra dan menghemat kapasitas ruang penyimpanan harddisk dengan cara melakukan proses kompresi terhadap citra.
SISTEM INFORMASI PENDAFTARAN BUJANG GADIS KAMPUS DENGAN METODE WATERFALL
Authors: Puspita Desi , Rahmadayanti Fitria
Published: August 2024

Penelitian ini bertujuan untuk membuat Rancang Bangun Website Pendaftaran Bujang Gadis Kampus (BGK) Kota Pagar Alam hal tersebut bertujuan untuk mempermudah para mahasiswa untuk mendaftar menjadi Bujang Gadis Kampus (BGK) Kota Pagar Alam. Penelitian ini di latar belakangi dengan proses pendaftaran yang masih menggunakan cara yang konvensional, pendaftaran calon Bujang Gadis Kampus (BGK) Kota Pagar Alam dengan cara mendaftar langsung pada saat panitia pemilihan Bujang Gadis Kampus Kota Pagar Alam (BGK) promosi ke kampus-kampus, atau pun langsung datang ke sekretariat Bujang Gadis Kampus Kota Pagar Alam (BGK) untuk mengisi formulir pendaftaran. Dalam penelitian ini diharapkan akan mempermudah para mahasiswa untuk mendaftar menjadi Bujang Gadis Kampus Kota Pagar Alam (BGK) sehingga dibuatlah Rancang Bangun Website Pendaftaran Bujang Gadis Kampus (BGK) Kota Pagar Alam. Metode pengembangan sistem yang di gunakan dalam penelitian ini adalah Waterfall yaitu analisis, desain, pengkodean dan pengujian menggunakan blackbox testing. Hasil dari penelitian berupa sistem informasi pendaftaran bujang gadis kampus dengan metode waterfall.
Optimalisasi Peran Konselor Sekolah Dengan Implementasi Aplikasi Layanan Bimbingan & Konseling (e-Konseling) Pada Sekolah Menengah Atas
Authors: M.Kom Sudirman S.Kom.,
Published: August 2024

Berbagai kegiatan dalam masa pandemic covid-19 saat ini semuanya diarahkan kedigital, otomatis dan bergerak dari manual ke online. Dunia Pendidikan dalam kegiatan pembelajaran dan aktifitas Pendidikan lainnya harus dapat dilakukan secara daring, oleh karena itu butuh sarana penunjang dalam mengoptimalkan kegiatan tersebut termasuk kegiatan konseling di sekolah. Dunia online juga bisa dijadikan sarana bagi para konselor untuk meningkatkan pengetahuan dan membantu dalam mencari referensi, diskusi, pelajaran dan lain sebagainya. Seiring dengan itu perkembangan penyelenggaraan konseling yang tadinya dilakukan secara tatap muka (face to face) dalam ruang tertutup, bisa dilakukan secara jarak jauh dengan dukungan teknologi informasi yang selanjutnya dikenal dengan istilah daring dengan memanfaatkan aplikasi e-konseling. Pelayanan e-konseling diperluas menjadi pelayanan penyelenggaraan Bimbingan Konseling (BK) secara keseluruhan dengan bantuan teknologi. Tujuan dari penelitian ini adalah bagaimana merancang, mendesain dan merealasasikan model dan arsitektur aplikasi e-Konseling untuk menunjang kegiatan konsultasi siswa secara online yang tidak terbatas oleh waktu.
Perancangan Sistem Informasi Aplikasi Wine Library Pada O’ Flaherty’s Café & Bar
Authors: Nainggolan Indra Oloan
Published: August 2024

O’Flaherty’s Café & Bar merupakan salah satu yang menyajikan minuman wine untuk para pelanggannya. Untuk informasi mengenai suatu merek wine tertentu sangat perlu ditelusuri karena saat ini O’Flaherty’s Café & Bar  hanya mengandalkan pendataan secara manual saja. Masalah yang biasa dialami seorang kolektor wine adalah sulit mengingat dan mendata setiap koleksi wine-nya padahal informasi mengenai wine penting karena dengan adanya informasi ini suatu wine akan dinilai harganya. Untuk mengatasi permasalahan tersebut, maka diusulkan suatu sistem informasi penelusuran wine library serta laporannya. Hasil yang diperoleh dengan menerapkan sistem informasi yang diusulkan tersebut adalah dokumen seperti laporan daftar supplier, laporan pembelian wine, laporan stock wine, laporan stok keluar, dan katalog wine dapat disajikan dengan cepat dan tepat.
Penentuan Pengangkatan Karyawan Tetap Menggunakan Metode Analytical Hierarchy Process (AHP) Studi Kasus : PT. BPR NBP 18
Authors: Tiarni Ade Riyen , Simangunsong Agustina
Published: August 2024

PT BPR NBP 18 adalah perusahaan yang bergerak dalam bidang perbankan yang saat ini memiliki 52 pegawai diantaranya 26 karyawan tetap dan 26 karyawan kontrak. Dalam menentukan karyawan kontrak menjadi karyawan tetap pada perusahaan saat ini masih mengunakan teknik manual berupa pengisian angket penilaian namun sering terjadi kehilangan berkas atau human error yang menyebabkan pengangkatan keryawan tetap menjadi terkendala, oleh karna itu dibangunlah sistem pendukung keputusan dalam menentukan karyawan tetap dengan menggunakan metode AHP (Anallytical Hierarchy Process) sehingga dapat membantu pihak perusahaan dalam mengangkat karyawan kontrak menjadi karyawan tetap dengan menggunakan 5 kriteria yaitu absensi, wawasan, pelayanan, loyalitas, dan penampilan sebagai bahan penilaian sehingga hasil terdata secara sistem dan dengan nilai akurasi 90% tepat dalam menentukan keputusan untuk mengangkat karyawan tetap.
IMPLEMENTASI METODE CUSTOMER SATISFACTION INDEX (CSI) UNTUK MENGANALISA KEPUASAN PELANGGAN PADA FAMILY SWALAYAN
Authors: Nugraha Nur Budi , Sellyana Ari , Karpen Karpen
Published: August 2024

Family Swalayan merupakan salah satu tempat berbelanja yang cukup diminati oleh konsumen dan  mempunyai lokasi yang strategis di Kota Dumai. Adanya persaingan yang terjadi antara para penjual produk atau ritel, menimbulkan sebuah kompetisi strategi yang tepat untuk meraih pangsa pasar terbesar. Pihak manajemen family swalayanharus memperhatikan hal-hal yang dapat mempengaruhi minat beli konsumen. Hal ini patut diperhatikan karena konsumen tidak hanya berpedoman pada harga  yang  murah  saja,  tetapi  juga  pada kualitas pelayanan, lokasi usaha, kualitas produk yang ditawarkan, serta kerapian tata letak produk yang. Faktor-faktor inilah yang dapat menyebabkan konsumen dapat beralih ke tempat-tempat perbelanjaan lain yang mempunyai daya tarik lebih dibandingkan. Tujuan penelitian untuk mengetahui kepuasan pelanggan family swalayan menggunakan metode customer satisfaction index (CSI) berdasarkan kualitas pelayanan, fasilitas, dan harga produk. Metode CSI digunakan untuk mengetahui tingkat kepuasan konsumen secara menyeluruh dengan melihat tingkat kepentingan atribut – atribut produk / jasa. Berdasarkan penelitian yang dilakukan, diperoleh hasil pencarian CSI untuk kepuasan pelanggan berada pada tingkat Puas sebesar 0.77
Rancang Bangun Aplikasi Sistem Informasi Organisasi Mahasiswa (SIOMAH)
Authors: Sibagariang Swono , Dzikri Afdhol , Resda Dodi Prima , Purba Jhon Hericson
Published: August 2024

Organisasi Mahasiswa merupakan wadah dan sarana untuk menyalurkan kreatifitas dan potensi di bidang penalaran dan keilmuan, minat dan bakat, upaya perbaikan kesejahteraan mahasiswa, dan pengabdian pada masyarakat. Keaktifan mahasiswa dalam berorganisasi mempunyai manfaat untuk memperluas jaringan, melatih jiwa kepemimpinan (leadership), melatih mental berbicara di depan publik (public speaking), mudah memecahkan masalah (problem solving) dan juga meningkatkan wawasan dan pengetahuan Mahasiswa. Politeknik Negeri Batam merupakan salah satu perguruan tinggi vokasi di Kepulauan Riau yang cukup aktif dalam kegiatan organisasi mahasiswa namun sampai saat ini, dalam menjalankan proses administrasi masing-masing ormawa masih menggunakan cetakan kertas dan dikelompokkan menjadi arsip dokumen, sehingga membutuhkan waktu yang banyak dan rentan kehilangan dokumen. Oleh karena itu, dibutuhkan sistem informasi yang dapat membantu kendala tersebut. Pada penelitian ini akan dibangun sistem informasi organisasi mahasiswa (SIOMAH) berbasis website yang dapat mempermudah mahasiswa, organisasi mahasiswa, pembina dan bagian kemahasiswaan untuk mengetahui kegiatan kemahasiswaan dan juga memudahkan dalam proses administrasi organisasi mahasiswa. Metode pengembangan menggunakan waterfall, bahasa pemrogaraman menggunakan PHP dan MySQL sebagai basis data. Hasil dari penelitian ini adalah sebuah website yang dapat digunakan sebagai transaksi dan informasi data administrasi organisasi mahasiswa.
Penerapan Kriptografi Dalam Pengamanan Pesan Text Berbasis Android Dengan Menggunakan Metode Rijndael
Authors: Alhamdi Ahmad Teguh Fikri , Siahaan R. Fanry
Published: August 2024

Kriptografi merupakan teknik penyandian untuk menjaga kerahasian pesan agar tidak mudah di baca/di ketahui oleh orang yang tidak berhak. Dalam kriptografi ada dua buah bagian utama yaitu enkripsi dan dekripsi. Enkripsi adalah proses penyembunyian data pesan, mengubah plaintext menjadi chipertext, sedangkan dekripsi merupakan kebalikan dari enkripsi, bertujuan untuk memahami pesan yang ada. Algoritma Rijndael adalah salah satu algoritma pada kunci simetris yang dapat digunakan untuk melakukan enkripsi data sehingga data asli hanya dapat dibaca oleh seseorang yang memiliki kunci enkripsi tersebut. Penyandian Rijndael menggunakan proses yang berulang yang disebut dengan ronde. Jumlah ronde yang digunakan oleh Rijndael tergantung dengan panjang kunci yang digunakan. Setiap ronde membutuhkan kunci ronde dan masukan dari ronde berikutnya. Sistem operasi untuk perangkat mobile yang menyertakan middleware (virtual machine) dan sejumlah aplikasi utama disebut sebagai. Android sebuah modifikasi dari kernel Linux. Tujuan pembuatan sistem operasi ini sebagai penyedia platform yang terbuka, misalnya dalam penggunaan chating, namun didalam penggunaanya masih terdapat kelemahan sistem. Android juga dirancang untuk memudahkan pengembang membuat aplikasi dengan batasan yang minim sehingga kreativitas pengembang menjadi lebih berkembang. Oleh karena itu di perlukan sebuah keamanan yang dapat mengamankan pesan atau chating agar dapat membantu privasi seseorang dalam melakukan kegiatan sehari-hari.
TRANSFORMASYONEL LİDERLİK: EĞİTİM KURUMLARI BAĞLAMINDA BİR DEĞERLENDİRME
Authors: Babrak Ethem , Korkutan Mümtaz , Çelebi Seyit Ali
Published: August 2024

Eğitim kurumları, toplumların geleceğini şekillendiren ve bireylerin potansiyellerini en üst düzeye çıkarmalarına yardımcı olan hayati öneme sahip kurumlardır. Bu bağlamda, eğitimde liderlik konusu, bu kurumların etkin bir şekilde yönetilmesi ve öğrenci başarısının artırılması açısından kritik bir rol oynamaktadır. Geleneksel liderlik yaklaşımlarının ötesinde, dönüşümcü liderlik, eğitim yöneticileri için daha etkili ve yenilikçi bir yaklaşım sunmaktadır. Bu çalışmanın amacı, dönüşümcü liderlik kavramını ayrıntılı bir şekilde incelemek ve bu kavramı eğitim kurumları bağlamında değerlendirmektir. Ayrıca, çalışmada diğer liderlik özellikleri de ele alınmıştır.
Bu kapsamda, nitel araştırma yöntemlerinden biri olan doküman incelemesi yöntemiyle veriler toplanmış ve analiz edilmiştir. Araştırma sonucunda, değişen durum ve koşullara göre her kurum için tek bir liderlik türünün faydalı olabileceğini söylemek pek mümkün görünmemektedir. Eğitim kurumlarının bulunduğu sosyal çevrenin sosyokültürel ve ekonomik yapısı, değişim ve dönüşüme verdikleri tepki ve eğitime bakış açıları, uygulanacak liderlik türünün değişkenlik göstermesine neden olmaktadır. Bu bulgular, eğitimde liderlik yaklaşımının esnek ve duruma özel olmasının gerekliliğini ortaya koymaktadır.
Sonuç olarak, eğitim kurumlarında liderlik, statik bir yapıdan ziyade, dinamik ve adaptif bir süreç olarak ele alınmalıdır. Dönüşümcü liderlik, bu süreçte önemli bir rol oynasa da, liderlik stratejilerinin kurumların özgün ihtiyaçlarına ve çevresel faktörlere göre uyarlanması gerekmektedir. Bu şekilde, eğitim kurumları, değişen koşullara hızlı bir şekilde adapte olabilir ve öğrenci başarısını en üst düzeye çıkarabilir.
Influence of colour and age on the thickness and medullation characteristics of wool Huacaya alpacas maintained in Poland
Authors: Kuźnicka Ewa , Stempke Katarzyna , Radzik-Rant Aurelia , Rant Witold
Published: August 2024

Abstract. The aim of this study was to analyse the thickness and medullation of Huacaya alpaca fibre depending on the colour of the wool and the age of the animal. The analyses were conducted on 30 females with ages of under 1 year (12), from 1 to 4 years (6), and over 4 years (12). There were individuals with white (12) and brown (18) wool in all age groups. The animals were maintained in the same conditions; they were fed hay and concentrate feed throughout the whole year, with permanent access to water, and in the spring and summer periods, they were also fed grass. The fibre diameter and medullation were measured using a projection microscope according to the IWTO-8-2011 standard. The analysis showed no significant effect of the wool colour variety on the average fibre diameter and the degree of medullation, in contrast to the age. The average fibre diameter and fibre medullation percentage were lower in alpacas up to 1 year old (P<0.05) than in alpacas aged 1 to 4 years and over 4 years old. All types of fibres (non-medullated, with continuous and discontinuous medullas) were present in the wool of the examined alpacas, regardless of the thickness and/or colour of the wool and the age of the animals.
A new high-resolution groundwater isoscape for South-East Germany: insights from differences to precipitation
Authors: Gaillard Aixala , van Geldern Robert , Barth Johannes Arthur Christopher , Stumpp Christine
Published: August 2024

Abstract. Stable water isotopes are important tracers to understand interactions between all compartments of the hydrological cycle. Particularly in groundwater studies they have been used to assess recharge and origin of groundwater. Based on high- density groundwater measurements, we produced a new, interpolated map of the δ18O distribution (i.e. an isoscape) in groundwater of south-east Germany. A comparison of this groundwater isoscape to the regional long-term precipitation isoscape showed differences of up to ±2 ‰ between both compartments. Groundwater was enriched in the light isotope 16O compared to precipitation in the alpine area where recharge occurs mainly during winter and at recharge areas at higher altitudes. However, groundwater was enriched in the heavy isotope 18O with respect to precipitation in drier lowland regions where summer recharge, irrigation practices and aquifer types as well as evaporation processes may play a role. Further comparative studies between precipitation and groundwater stable water isotopes by using time series are needed to improve the understanding of spatial and seasonal recharge patterns of groundwater.
Validation of the version 4.5 MAESTRO ozone and NO2 measurements
Authors: Jeffery Paul S. , Drummond James R. , McElroy C. Thomas , Walker Kaley A. , Zou Jiansheng
Published: August 2024

Abstract. Launched aboard the Canadian satellite SCISAT in August 2003, the Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation (MAESTRO) instrument has been measuring solar absorption spectra in the ultraviolet (UV) and visible part of the spectrum for more than 20 years. The UV channel measurements from MAESTRO are used to retrieve profiles of ozone from the short-wavelength end of the Chappuis band (UV-ozone) and NO2, while measurements made in the visible part of the spectrum are used to retrieve a separate ozone (Vis.-ozone) product. The latest ozone and NO2 profile products, version 4.5, have been released, which nominally cover the period from February 2004 to December 2023. Due to the buildup of an unknown contaminant, the UV-ozone and NO2 products are only viable up to June 2009 for NO2 and December 2009 for UV-ozone. This study presents comparisons of the version 4.5 MAESTRO ozone and NO2 measurements with coincident, both spatially and temporally, measurements from an ensemble of 11 other satellite limb-viewing instruments. In the stratosphere, the Vis.-ozone product was found to possess a small high bias, with stratosphere averaged relative differences between 2.3 % and 8.2 %, but overall good agreement with the comparison datasets is found. A similar bias, albeit with slightly poorer agreement, is found with the UV-ozone product in the stratosphere, with the average stratospheric agreement between MAESTRO and the other datasets ranging from 2.9 % to 11.9 %. For NO2, general agreement with the comparison datasets is only found in the range from 20 to 40 km. Within this range, MAESTRO is found to have a low bias for NO2, and most of the datasets agree to within 27.5 %, although the average agreement ranges from 8.5 % to 43.4 %.
Minimal influence of future Arctic sea ice loss on North Atlantic jet stream morphology
Authors: Anderson Yvonne , Perez Jacob , Maycock Amanda C.
Published: August 2024

Abstract. The response of the North Atlantic jet stream to Arctic sea ice loss has been a topic of substantial scientific debate. Some studies link declining Arctic sea ice to a weaker, wavier jet stream, which potentially increases the occurrence of extreme weather events. Other studies suggest no causal link between Arctic sea ice loss and the jet stream, instead attributing jet variations to internal variability. Current methods for characterising the low-level jet typically use zonal wind speeds averaged over the North Atlantic sector, which can result in the loss of important aspects of jet morphology. This study uses a new 2-dimensional feature-based method to investigate the winter low-level jet response to future Arctic sea ice loss using idealised prescribed sea ice experiments from the Polar Amplification Model Intercomparison Project (PAMIP). In contrast to earlier studies that have focused on seasonal average changes, this study also explores how daily jet variability is altered by sea ice loss. The results show a significant equatorward shift in mean jet latitude for three of the six PAMIP models analysed, with a multi-model mean jet shift of -0.8 ± 0.1°. However, there is no change in jet speed and jet tilt across all models and no robust change in jet mass (area-weighted speed). Three of the six models show an increase in the frequency of split jet days, but this does not strongly affect the overall distributions of daily jet latitude, speed and mass. Likewise, the results show no significant change in the daily variability of jet features and changes in interannual variability are inconsistent between the models. The results extend previous studies characterising jet response from a zonally averaged perspective, and suggest it is unlikely that future Arctic sea ice loss will cause significant weakening of the North Atlantic jet stream or an increase in jet variability.
Quantifying the spread in Sudden Stratospheric Warming wave forcing in CMIP6
Authors: Martínez-Andradas Verónica , de la Cámara Alvaro , Zurita-Gotor Pablo , Lott François , Serva Federico
Published: August 2024

Abstract. Sudden stratospheric warmings (SSWs) show large spread across climate models in characteristics such as frequency of occurrence, seasonality and strength. This is reflective of inherent model biases. A well-known source of inter-model variability is the parameterized gravity wave forcing, as the parameterization schemes vary from model to model. This work compares the simulation of boreal SSWs in historical runs for seven high-top Climate Model Intercomparison Project Phase 6 models and in two reanalyses. The analysis is focused on the evolution of the different terms in the Transformed Eulerian Mean zonal-mean zonal momentum equation. A large spread is found through models and reanalyses in the mean magnitude of the resolved and parameterized wave forcing and the responses (wind deceleration and anomalous residual circulation). The results reveal that, in the stratosphere, both the wind deceleration and the strengthening of the residual circulation during SSWs correlate linearly across the models with anomalies in the resolved wave forcing. In the mesosphere, the forcing is a combination of resolved waves and, predominantly, parameterized gravity waves. Models with larger gravity-wave forcing anomalies produce larger changes in the residual circulation, while models with larger resolved wave forcing anomalies produce stronger wind deceleration, which we attribute to differences in the spatial shape of resolved and parametrized wave forcing. However, the forcing-response relation across events in the stratosphere is similar for each model, but not in the mesosphere. Our results are useful for interpreting the spread in projections of the dynamical forcing of SSWs in a changing climate.
A synthesized field survey database of vegetation and active-layer properties for the Alaskan tundra (1972–2020)
Authors: Zhu Xiaoran , Chen Dong , Kogure Maruko , Hoy Elizabeth , Berner Logan T. , Breen Amy L. , Chatterjee Abhishek , Davidson Scott J. , Frost Gerald V. , Hollingsworth Teresa N. , Iwahana Go , Jandt Randi R. , Kade Anja N. , Loboda Tatiana V. , Macander Matt J. , Mack Michelle , Miller Charles E. , Miller Eric A. , Natali Susan M. , Raynolds Martha K. , Rocha Adrian V. , Tsuyuzaki Shiro , Tweedie Craig E. , Walker Donald A. , Williams Mathew , Xu Xin , Zhang Yingtong , French Nancy , Goetz Scott
Published: August 2024

Abstract. Studies in recent decades have shown strong evidence of physical and biological changes in the Arctic tundra, largely in response to rapid rates of warming. Given the important implications of these changes for ecosystem services, hydrology, surface energy balance, carbon budgets, and climate feedbacks, research on the trends and patterns of these changes is becoming increasingly important and can help better constrain estimates of local, regional, and global impacts as well as inform mitigation and adaptation strategies. Despite this great need, scientific understanding of tundra ecology and change remains limited, largely due to the inaccessibility of this region and less intensive studies compared to other terrestrial biomes. A synthesis of existing datasets from past field studies can make field data more accessible and open up possibilities for collaborative research as well as for investigating and informing future studies. Here, we synthesize field datasets of vegetation and active-layer properties from the Alaskan tundra, one of the most well-studied tundra regions. Given the potentially increasing intensive fire regimes in the tundra, fire history and severity attributes have been added to data points where available. The resulting database is a resource that future investigators can employ to analyze spatial and temporal patterns in soil, vegetation, and fire disturbance-related environmental variables across the Alaskan tundra. This database, titled the Synthesized Alaskan Tundra Field Database (SATFiD), can be accessed at the Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC) for Biogeochemical Dynamics (Chen et al., 2023: https://doi.org/10.3334/ORNLDAAC/2177).
A 100 m gridded population dataset of China's seventh census using ensemble learning and big geospatial data
Authors: Chen Yuehong , Xu Congcong , Ge Yong , Zhang Xiaoxiang , Zhou Ya'nan
Published: August 2024

Abstract. China has undergone rapid urbanization and internal migration in the past few years, and its up-to-date gridded population datasets are essential for various applications. Existing datasets for China, however, suffer from either outdatedness or failure to incorporate data from the latest Seventh National Population Census of China, conducted in 2020. In this study, we develop a novel population downscaling approach that leverages stacking ensemble learning and big geospatial data to produce up-to-date population grids at a 100 m resolution for China using seventh census data at both county and town levels. The proposed approach employs stacking ensemble learning to integrate the strengths of random forest, XGBoost, and LightGBM through fusing their predictions in a training mechanism, and it delineates the inhabited areas from big geospatial data to enhance the gridded population estimation. Experimental results demonstrate that the proposed approach exhibits the best-fit performance compared to individual base models. Meanwhile, the out-of-sample town-level test set indicates that the estimated gridded population dataset (R2=0.8936) is more accurate than existing WorldPop (R2=0.7427) and LandScan (R2=0.7165) products for China in 2020. Furthermore, with the inhabited area enhancement, the spatial distribution of population grids is intuitively more reasonable than the two existing products. Hence, the proposed population downscaling approach provides a valuable option for producing gridded population datasets. The estimated 100 m gridded population dataset of China holds great significance for future applications, and it is publicly available at https://doi.org/10.6084/m9.figshare.24916140.v1 (Chen et al., 2024b).
CAMELS-DK: Hydrometeorological Time Series and Landscape Attributes for 3330 Catchments in Denmark
Authors: Liu Jun , Koch Julian , Stisen Simon , Troldborg Lars , Højberg Anker Lajer , Thodsen Hans , Hansen Mark F. T. , Schneider Raphael J. M.
Published: August 2024

Abstract. Large samples of hydrometeorological time series and catchment attributes are critical for improving the understanding of complex hydrological processes, hydrological model development and performance benchmarking. CAMELS (Catchment Attributes and Meteorological time series for Large Samples) datasets have been developed in several countries and regions around the world, providing valuable data sources and testbeds for hydrological analysis and new frontiers in data-driven hydrological modelling. Regarding the lack of samples from low-land, groundwater-dominated, small-sized catchments, we develop an extensive repository of a CAMELS-style dataset for Denmark (CAMELS-DK). This CAMELS addition is the first containing both, gauged and ungauged catchments as well as detailed groundwater information. The dataset provides dynamic and static variables for 3330 catchments from various hydrogeological datasets, meteorological observations, and a well-established national-scale hydrological model. The dataset is enhanced with streamflow observations in 304 of those catchments. The spatially dense and full spatial coverage, supplying data for 3330 catchments, instead of only gauged catchments, together with the addition of simulation data from a distributed, process-based model enhance the applicability of such CAMELS data. This is especially relevant for the development of data-driven and hybrid physical informed modelling frameworks. We also provide quantities related to human impact on the hydrological system in Denmark, such as groundwater abstraction and irrigation. The CAMELS-DK dataset is freely available at https://doi.org/10.22008/FK2/AZXSYP (Koch et al., 2024).
Hydrological Controls on Temporal Contributions of Three Nested Forested Subcatchments to DOC Export
Authors: Blaurock Katharina , Beudert Burkhard , Hopp Luisa
Published: August 2024

Abstract. Assessing DOC export from terrestrial systems into inland waters reliably is of paramount importance to understand all processes of the global carbon cycle. Using high-frequency measurements of DOC concentrations via UV-Vis spectrometry, we quantified the DOC export at the outlets of three nested forested subcatchments within a 3.5 km2 headwater catchment in the Bavarian Forest National Park, Germany, during a 12 month period. The subcatchments differ with respect to topography, elevation, vegetation and soils. We observed a high flow-weighted DOC export from the entire headwater catchment during spring and autumn. In contrast, during snowmelt, summer and winter, DOC export was low due to low DOC availability and a limited hydrological connectivity, which is the prerequisite for transport processes from terrestrial systems into inland waters. Flow-weighted DOC export also varied between the three subcatchments. Flow-weighted DOC export was always higher in the lower, flat subcatchment than in the upper steep subcatchments, indicating a large DOC store that can be activated, whenever hydrological connectivity is established. This was particularly evident during autumn, when large precipitation events mobilized DOC which had accumulated during the dry summer period and was delivered from fresh leaf litter of deciduous trees. Our data show the strong hydrological control on seasonal DOC export. However, the runoff-based contribution of subcatchments over time is modulated by the interplay of soils, vegetation, topography and microclimate, which can be seen as secondary controls. As hydrological connectivity varies with topography, the relative contribution of topographically different subcatchments varies seasonally. Since climate change is predicted to influence precipitation patterns, spatial and temporal DOC export patterns are likely to change depending on topography.
Youtube as a Source of Patient Information for Gummy Smile
Authors: Turkmen Emrah , Can Merve , Yılmaz Melis
Published: August 2024

Purpose:To evaluate the content and quality of information on gummy smile offered by YouTube videos for patients.
Materials and Methods:The keyword “gummy smile” was searched on Youtube. Videos were categorized as useful, misleading or personal experience based on their content. Videos were analysed to evaluate the and quality and scientific reliability of the information using Global Quality Scale(GQS) and DISCERN criteria; and the understandability of this information using a tailormade custom comprehensiveness index(CI). The source and user interaction information for each video were recorded.
Results:A total of 98 videos were included for analysis. The videos of 64(65.3%) were considered as useful, 18(18.4%) provided by misleading information, and 16(16.3%) described personal experiences. The source of the videos was 66(67.3%) of dentists/specialist, 8(8.2%) of clinics/hospitals, 8(8.2%) of TV channel/news agencies and 16(16.3%) of were other. The GQS was