bluuebunny/crossref_metadata_2025 huggingface dataset:
VALORISASI CANGKANG KIJING AIR TAWAR (Pilsbryoconcha sp.) SEBAGAI SUMBER HIDROKSIAPATIT
Authors: Sidauruk Santhy Wisuda , Iriani Dian , Diharmi Andarini , Anggraini Anggi
Published: March 2024

he mussel shell is a solid waste resulting from the processing of the mussel with a proportion of 51.93%, even though the shell has a high calcium content of 61.39% so there is a need for a innovation  in the utilization of mussel shells into value-added products through the valorisation of freshwater mussel shells as hydroxyapatite source. This research aimed to determine the characterisation of hydroxyapatite from freshwater mussel shells. The synthesis of hydroxyapatite was carried out using the hydrothermal method at 8000C. The hydroxyapatite characteristic of freshwater mussel shell has a white color with a whiteness value of 56.89%; identified functional groups PO43-, OH-, CO32-, and CaO groups as constituents of hydroxyapatite; a high degree of crystallinity of 82.8%; 48.255% calcium; 1.474% Phosphor; and 0.009% kalium.
IDENTIFIKASI KOLAGEN DARI CANGKANG BULU BABI (Diadema setosum) ASAL PERAIRAN PULAU LEMUKUTAN
Authors: Idiawati Nora , Novita Intan , Nurdiansyah Sy. Irwan , Minsas Sukal , Siregar Sepridawati
Published: March 2024

The purpose of this study was to determine the results of the identification of sea urchin collagen on the quality of the yield produced and the absorption function group of FTIR (Fourier Transform Infra Red). The results of the analysis of the yield value of collagen extract using hydrochloric acid solvent concentration of 1 % was 0.49 %, 3 % was 0.76 %, 5 % was 0.62 %. Then additional collagen extraction was carried out at the concentration with the best results to identify the quality of the collagen. The identification results in the water content value of 21.31 %, ash content of 42.8 %, and the results of the FTIR (Fourier Transform Infra Red) wave number for Amide A of 3448.72 cm-1,Amide B of 2924.09 cm-1, Amide I of 1641.42 cm-1, Amide II of 1539.20 cm-1, Amide III of 1228.66 cm
KARAKTERISTIK PROSES PENGOLAHAN BANDENG (Chanos chanos) PRESTO SKALA UMKM DI KECAMATAN JUWANA, KABUPATEN PATI
Authors: Handoko Yudi Prasetyo , Apriani Dita Ambar Kartika , Amrizal Sri Novalina
Published: March 2024

Milkfish has a complex nutritional content, ranging from protein, calcium, fat to vitamins and

omega 3. Pati Regency is one of the largest milkfish producers in Central Java Province with one well

known product is pressurized milkfish. The purpose of this research was to determine the process

flow, to determine the quality of raw materials and products, to calculate the yield, to know the

temperature used at each stage of the process, to find out the application of sanitation and hygiene,

and to analyze financial aspects. The research method used is descriptive, the data obtained in a

clear and detailed anner, and comparatively by comparing the data obtained with references.

Pressurizedd milkfish processing consisted of 9 stages from receiving raw materials to packaging. The

organoleptic value of raw materials and products was 8. The yield of the removing head and guts

process was 92.60% and the cooking process was 43.51%. The application of cold temperatures

during the production process has not been carried out properly and correctly. Sanitation and hygiene

have not been implemented properly. Simple analizing of the financial aspect for one month of

production gained profit of Rp. 43,744,000 with profit margin of 9.35%.
A comprehensive review on the development of sporadic cerebral arteriovenous malformations: from Padget to next-generation sequencing
Authors: Coffman Stephanie A. , Peterson Keyan , Contillo Nicholas , Fargen Kyle M. , Wolfe Stacey Q.
Published: March 2024

Cerebral arteriovenous malformations (AVMs) are a leading cause of intracerebral hemorrhage in both children and young adults. With the continued advancement of science and technology, the understanding of the pathophysiology behind the development of these lesions has evolved. From early theory published by Harvey Cushing and Percival Bailey in 1928, Tumors Arising from the Blood-vessels of the Brain: Angiomatous Malformations and Hemangioblastoma, which regarded AVMs as tumors arising from blood vessels, to the meticulous artistry of Dorcas Padget’s embryological cataloguing of the cerebral vasculature in 1948, to the proliferative capillaropathy theory of Yaşargil in 1987, to Ramey’s 2014 hierarchical model of vascular development, there have been multiple hypotheses of congenital, developmental, and genetic two-hit theories in the pathogenesis of AVMs. Most recent evidence implicates somatic KRAS mutations in the cerebral endothelium, producing an important understanding of the pathogenesis of this disease, which is critical to the development of targeted therapeutics. The authors present the historical progression of their understanding of AVM pathogenesis. They focus on the foundation laid by early pioneers, discussing embryological anatomy and vasculogenesis, the prominent theories of AVM development that have emerged over time, and culminate in an overview of the most current understanding of the pathogenesis of these complex vascular lesions and the clinical implications of our scientific progress.
Variations in the genomic profiles and clinical behavior of meningioma by racial and ethnic group
Authors: Tabor Joanna K. , Dincer Alper , O’Brien Joseph , Lei Haoyi , Vetsa Shaurey , Vasandani Sagar , Jalal Muhammad I. , Yalcin Kanat , Morales-Valero Saul F. , Marianayagam Neelan , Alanya Hasan , Elsamadicy Aladine A. , Millares Chavez Miguel A. , Aguilera Stephanie M. , Mishra-Gorur Ketu , McGuone Declan , Fulbright Robert K. , Jin Lan , Erson-Omay E. Zeynep , Günel Murat , Moliterno Jennifer
Published: March 2024

OBJECTIVE

The influence of socioeconomic factors on racial disparities among patients with sporadic meningiomas is well established, yet other potential causative factors warrant further exploration. The authors of this study aimed to determine whether there is significant variation in the genomic profile of meningiomas among patients of different races and ethnicities and its correlation with clinical outcomes.

METHODS

The demographic, genomic, and clinical data of patients aged 18 years and older who had undergone surgery for sporadic meningioma between September 2008 and November 2021 were analyzed. Statistical analyses were performed to detect differences across all racial/ethnic groups, as were direct comparisons between Black and non-Black groups plus Hispanic and non-Hispanic groups.

RESULTS

This study included 460 patients with intracranial meningioma. Hispanic patients were significantly younger at surgery (53.9 vs 60.2 years, p = 0.0006) and more likely to show symptoms. Black patients had a higher incidence of anterior skull base tumors (OR 3.2, 95% CI 1.7–6.3, p = 0.0008) and somatic hedgehog mutations (OR 5.3, 95% CI 1.6–16.6, p = 0.003). Hispanics were less likely to exhibit the aggressive genomic characteristic of chromosome 1p deletion (OR 0.28, 95% CI 0.07–1.2, p = 0.06) and displayed higher rates of TRAF7 somatic driver mutations (OR 2.96 95% CI 1.1–7.8, p = 0.036). Black patients had higher rates of recurrence (OR 2.6, 95% CI 1.3–5.2, p = 0.009) and shorter progression-free survival (PFS; HR 2.9, 95% CI 1.6–5.4, p = 0.002) despite extents of resection (EORs) similar to those of non-Black patients (p = 0.745). No significant differences in overall survival were observed among groups.

CONCLUSIONS

Despite similar EORs, Black patients had worse clinical outcomes following meningioma resection, characterized by a higher prevalence of somatic hedgehog mutations, increased recurrence rates, and shorter PFS. Meanwhile, Hispanic patients had less aggressive meningiomas, a predisposition for TRAF7 mutations, and no difference in PFS. These findings could inform the care and treatment strategies for meningiomas, and they establish the foundation for future studies focusing on the genomic origins of these observed differences.
Language-discordant care in pediatric neurosurgery: parent and provider perspectives on challenges and multilevel solutions to reduce disparities
Authors: Ruiz Colón Gabriela D. , Bereknyei Merrell Sylvia , Poon Diana C. , Mahaney Kelly B. , Maher Cormac O. , Prolo Laura M.
Published: March 2024

OBJECTIVE

In the United States, Spanish is the second most spoken language, with nearly 42 million individuals speaking Spanish at home. Spanish speakers have been noted to have higher rates of unfavorable neurosurgical outcomes; however, to the authors’ knowledge, no study has explored the experiences of patients, caregivers, and providers receiving or delivering neurosurgical care in language-discordant settings. In this study, the authors sought to identify challenges faced by pediatric neurosurgery providers and Spanish-speaking parents communicating with a language barrier and propose solutions to address those challenges.

METHODS

Spanish-speaking parents and pediatric neurosurgery providers were invited to participate in semistructured interviews. Purposeful sampling was used to recruit Spanish-speaking parents whose child had recently undergone neurological surgery at the authors’ institution and to identify pediatric neurosurgery clinical team members to interview, including physicians, advanced practice providers, and interpreters. Codes were inductively developed and applied to transcripts by two researchers. Thematic analysis was conducted to identify challenges faced by parents and providers.

RESULTS

Twenty individuals were interviewed, including parents (n = 8), advanced practice providers (n = 5), physicians (n = 3), interpreters (n = 2), a social worker (n = 1), and a nurse (n = 1). Three challenges were identified. 1) Compared with English-speaking parents, providers noted that Spanish-speaking parents were less likely to ask questions or raise new concerns. Concurrently, Spanish-speaking parents expressed a desire to better understand their child’s future medical needs, care, and development. 2) There is a dearth of high-quality resources available in the Spanish language to supplement patient and parent neurosurgical education. 3) Both parents and providers invariably prefer in-person interpreters; however, their availability is limited.

CONCLUSIONS

Three challenges were identified by Spanish-speaking parents of pediatric neurosurgery patients and providers when receiving or delivering care through a language barrier. The authors discuss multilevel solutions that, if deployed, could directly address these shared challenges. Furthermore, optimizing communication may help mitigate the disparities experienced by non–English-speaking Hispanic/Latino individuals when receiving neurosurgical care.
Exploring tribology and material contact science in spine surgery: implications for implant design
Authors: Scariano Gabrielle , Meade Seth , Sultan Assem , Shost Michael , Benzel Edward C. , Krishnaney Ajit , Mroz Thomas , Steinmetz Michael P. , Habboub Ghaith
Published: March 2024

Tribology, an interdisciplinary field concerned with the science of interactions between surfaces in contact and their relative motion, plays a well-established role in the design of orthopedic implants, such as knee and hip replacements. However, its applications in spine surgery have received comparatively less attention in the literature. Understanding tribology is pivotal in elucidating the intricate interactions between metal, polymer, and ceramic components, as well as their interplay with the native human bone. Numerous studies have demonstrated that optimizing tribological factors is key to enhancing the longevity of joints and implants while simultaneously reducing complications and the need for revision surgeries in both arthroplasty and spinal fusion procedures. With an ever-growing and diverse array of spinal implant devices hitting the market for static and dynamic stabilization of the spine, it is important to consider how each of these devices optimizes these parameters and what factors may be inadequately addressed by currently available technology and methods. In this comprehensive review, the authors’ objectives were twofold: 1) delineate the unique challenges encountered in spine surgery that could be addressed through optimization of tribological parameters; and 2) summarize current innovations and products within spine surgery that look to optimize tribological parameters and highlight new avenues for implant design and research.
Sintomatología sentida y riesgo disergonómico en trabajadores de molinos de panela en Sandoná, Nariño
Authors: Eraso-Angulo Rosa Helena , Botina Gómez Angely Milena , Coronel Castro Lisseth Yomaira , Arteaga Burbano Karen Tatiana
Published: March 2024

Los trastornos musculoesqueléticos relacionados con el trabajo son cada vez más frecuentes e impactan en la salud y por ende en el desempeño del trabajador, aún más cuando se trata de sectores productivos informales y rudimentarios que, por sus características, como los molinos paneleros, implican movimientos repetitivos, posturas prolongadas y manipulación de cargas, los cuales son factores que predisponen al riesgo disergonómico y a una sintomatología dolorosa en estos trabajadores, ocasionando enfermedades laborales a largo plazo y alteración de la funcionalidad. Objetivo: determinar la sintomatología sentida y riesgo disergonómico en trabajadores de un molino de panela. Metodología: el diseño del estudio fue de tipo descriptivo, transversal. Se evaluó a 29 trabajadores de un molino panelero en el municipio de Sandoná, se aplicó el instrumento nórdico para la sintomatología sentida y la batería OWAS para el riesgo disergonómico. Resultados: el 82,8 % de los participantes presentó molestias músculo esqueléticas y, de este porcentaje, la zona corporal de mayor molestia fue la región dorsal o lumbar con un 37,5 %; además, la población correspondiente al 86,2 % presenta riesgo disergonómico. Conclusión: los resultados indican que la población sí evidencia sintomatología músculo esquelética y que la manipulación de cargas junto con posturas forzadas representa efectos dañinos en los trabajadores de molinos de panela, dadas las características del trabajo.
PENGARUH METODE PENERAPAN PEMBELAJARAN DAN KINERJA GURU TERHADAP PRESTASI BELAJAR SISWA DI SD NEGERI LOH BENER KECAMATAN JATIBARANG KABUPATEN INDRAMAYU
Authors: Watini Watini , Kristianty W Dinny
Published: March 2024

This research is motivated by the low results of the teacher competency test which is a reflection of the low teaching performance of teachers in Indonesia, which of course is related to the low HDI and the Education Development Index or the Indonesian Education Development Index in UNDP and Unesco research monitoring. The low performance of teachers in Indonesia is caused by many factor. This study uses a descriptive correlational method. This method describes the relationship between research variables. This study uses a descriptive correlational method. This method describes the relationship between research variables. The results showed that the learning method applied at SD Negeri Lohbener Lor in Jatibarang District, Indramayu Regency was based on the results of the research and the discussion was perceived as good. The teacher's performance at SD Negeri Lohbener Lor in Jatibarang District, Indramayu Regency is based on the results of research and discussions that are perceived as good. Student achievement at SD Negeri Lohbener Lor in Jatibarang District, Indramayu Regency is based on the results of research and discussion that are perceived as good. There is an influence of learning methods on learning achievement of SD Negeri Lohbener Lor in Jatibarang District, Indramayu Regency. There is an influence of teacher performance on learning achievement at SD Negeri Lohbener Lor in Jatibarang District, Indramayu Regency. There is an influence of learning achievement and teacher performance on learning achievement at SD Negeri Lohbener Lor in Jatibarang District, Indramayu Regency
IMPLEMENTASI DUKUNGAN SOSIAL GURU TERHADAP PENGAMBILAN KEPUTUSAN KARIR SISWA SMK YABUJAH
Authors: Alvian Iyan
Published: March 2024

Tujuan penelitian ini adalah untuk mengetahui implementasi dukungan sosial guru terhadap pengambilan keputuan karir siswa SMK Yabujah Segeran. Metode penelitian ini adalah deskriptif kualitatif. informan penelitian ini adalah salah satu guru BK dan wali kelas. Teknik pengumpulan data yaitu menggunakan wawancara, observasi, dan studi pustaka. Hasil penelitian menunjukkan bahwa implementasi dukungan sosial guru terhadap pengambilan keputusan karir siswa di Sekolah Menengah Kejuruan Yabujah sudah dilakukan disekolah dengan Guru BK memberikan bimbingan karir yakni memberikan bantuan kepada siswa agar dapat memiliki dan memahami gambaran tentang dunia kerja, kelebihan dan kekurangan yang dimiliki, serta jenis pekerjaan yang sesuai dengan kepribadian, bakat dan kemampuan siswa tersebut. Disamping itu juga peranan guru selain memberikan bimbingan karir guru juga memberikan motifasi kepada siswa agar dapat mendapatkan karir sesuai dengan keinginan dan bakat minatnya. Ada dua faktor yang mempengaruhi perkembangan karir yaitu faktor internal dan faktor ksternal membentuk keunikan kepribadian individu dan faktor eksternal yang berpengaruhi langsung maupun tidak langsung dengan diri seseorang.
PENERAPAN ALAT PERMAINAN EDUKATIF TERHADAP PERKEMBANGAN KEMAMPUAN KOGNITIF ANAK DI TK PANJIWANGI KECAMATAN CIKIJING
Authors: Lindiawati Lina
Published: March 2024

Penelitian ini bertujuan untuk meningkatkan  kemampuan kognitif anak khususnya mengenal lambang bilangan. Pemanfaatan media pohon angka pada anak usia dini adalah suatu kegiatan yang pemanfaatan media pohon angka yang dimainkan anak untuk mengenal konsep bilangan pada anak sejak dini. Pemanfaatan media pohon angka ini bertujuan untuk mengenalkan konsep bilangan berdasarkan pemahaman anak pada indikator 1-10 dengan cara anak menunjukan angka-angka pada pohon angka. Media pohon angka ini dapat menolong anak dalam mengenal konsep bilangan 1-10 dengan tampilan yang menarik. Penelitian ini menggunakan metode penelitian kualitatif dengan jenis penelitian lapangan. Hasil Penelitian ini menunjukkan bahwa pemanfaatan media pohon angka dapat membantu anak dalam mengenal konsep bilangan khususnya angka 1-10. Hal tersebut bisa dilihat dari hasil survey penenerapan alat media edukatif (APE) terhadap peningkatan kemampuan kognitif anak  dari seluruh penilaian  adalah 71.5% dari skor maksimal 4 yang berarti termasuk kategori sangat setuju dan 28,5% dari skor maksimal setuju.
ANALISIS PROBLEMATIKA DI SEKOLAH
Authors: Caswanda Caswanda , Kamaludin Kamaludin , Araniri Nuruddin
Published: March 2024

Masalah penelitian ini adalah Belum optimalnya penerimaan siswa baru pada tahun ajaran 2022/2023 SDN Panongan II  Kecamatan Jatitujuh Kabupaten Majalengka. Tujuan dari penilitian ini yaitu untuk mengetahui faktor-faktor yang menjadi penyebab siswa baru yang mendaftar di kelas I SDN Panongan II sedikit pada tahun ajaran 2022/2023 apabila dibandingkan dengan tahun-tahun ajaran sebelumnya.   Penelitian ini merupakan penelitian kualitatif. Metode pengumpulan data yang digunakan dalam penelitian ini adalah wawancara dan dokumentasi. Analisis data melalui beberapa tahapan yaitu reduksi data, penyajian, dan penarikan kesimpulan. Validasi data menggunakan Triangulasi. Hasilnya, Kami menemukan bahwa jumlah siswa baru di SD Negeri  Panongan II  dipengaruhi  oleh  beberapa  faktor diantaranya suksesnya program keluarga berencana, kurangnya promosi yang dilakukan sekolah, faktor kurangnya PTK, dan faktor sarana dan prasarana yang dimiliki sekolah. Berdasarkan penelitian ini, maka sekolah mengadakan perbaikan dengan melakukan promosi pada saat sebelum penerimaan murid baru baik ke TK, maupun ke RA, memperbaiki fasiltas sarana dan prasarana kelas, menambah jumlah PTK untuk memperbaiki layanan pembelajaran, dan membuat program-program sekolah yang jelas untuk membuat kegiatan belajar mengajar yang efektif dan efisien untuk mengatasi masalah ini.
MODEL KEPEMIMPINAN DEMOKRATIS
Authors: Sutisna Entis , Kamaludin Kamaludin , Hidayat Yayat , Saroni M.
Published: March 2024

Penelitian ini mengkaji tentang Gaya Kepemimpinan Ketua Kelompok Kerja Kepala Sekolah (K3S) di Kecamatan Jatitujuh Kabupaten Majalengka. Tujuan penelitian ini adalah untuk mengetahui Gaya Kepemimpinan Demokratis Ketua Kelompok Kerja Kepala Sekolah Kecamatan Jatitujuh Kabupaten Majalengka. Penelitian ini menggunakan pendekatan kualitatif dengan Teknik pengumpulan data berupa observasi, wawancara dan dokumentasi. Selanjutnya penyajian data menggunakan pendekatan deskriptif. Proses pengumpulan data dilakukan di Kantor Ketua K3S, dengan melakukan wawancara kepada empat Kepala Sekolah SD di Kecamatan Jatitujuh. Hasil penelitian menunjukkan bahwa gaya kepemimpinan yang dilakukan oleh Ketua Kelompok Kerja Kepala Sekolah (K3S) di Kecamatan Jatitujuh Kabupaten Majalengka dengan indikator keputusan dibuat bersama, menghargai potensi bawahan, mendengarkan kritik, saran dan pendapat dari pegawai, dan melakukan kerjasama dengan bawahannya. Dapat dikategorikan bahwa Ketua Kelompok Kerja Kepala Sekolah (K3S) di Kecamatan Jatitujuh Kabupaten Majalengka menggunakana gaya kepemimpinan Demokratis.
PENGELOLAAN WEBSITE DI PESANTREN PERSIS 297 CINGAMBUL
Authors: Uceng Uceng
Published: March 2024

Pengelolaan website sangat dibutuhkan di era digital sekarang ini, terlebih masyarakat ingin selalu dimudahkan dalam mengakses informasi. Website sangat membantu di dunia pendidikan dalam penyimpanan dokumen pembelajaran dan penyampaian informasi kepada warga pesantren. Penelitian ini bertujuan untuk mengetahui bagaimana pengelolaan website di Pesantren Persis 297 Cingambul. Penelitian ini menggunakan metode kualitatif deksriptif, pengumpulan data melalui dokumentasi, observasi dan wawancara. Analisis data yang digunakan adalah analisis interaktif. Hasil penelitian ini menunjukan bahwa website yang digunakan Pesantren Persis 297 Cingambul dikelola cukup baik. Pemanfaatan website ini digunakan untuk penyampaian informasi, sebagai tempat untuk mengarsipkan dokumen pesantren, pusat administrasi guru dan untuk menciptakan citra positif pesantren untuk menarik minat calon santri baru. Penelitian ini memberikan rekomendasi supaya pengelolaan website pesantren maksimal dalam mengelola data yang tersimpan dan penyampaian informasi, maka akan lebih baik jika dibuatkan jadwal postingan harian sehingga website dapat terkesan aktif. Oleh karena itu, diperlukan pembentukan tim manajemen atau pengelola media sosial untuk mengatur jadwal postingan, menentukan tema yang akan diposting, dan melakukan pengelolaan lainnya.
Üniversite ve Siyaset; Çarlık Rusyası ve Osmanlı Devletinde Meşrutiyet Hareketinde Yüksekokullar - 1905 / 1908
Authors: Kahraman Kemal
Published: March 2024

19. yüzyılda Avrupa’da yaşanan ekonomik, kültürel ve siyasi gelişmeler belli bir süreçte ve oranda Osmanlı Devleti ve Çarlık Rusya’sını etkisi altına almıştır. İhtilalden sonra büyük sosyal patlamalar yaşayan Fransa, koalisyon ve Napolyon savaşlarıyla Avrupa’yı sarsarken Batı’da yaşanan modernleşme akımlarını gittiği ülkelere taşımıştır. Aydınlar modern düşünceyle temas kurarken klasik monarşik yapılar gelişmelere ayak uydurmak için reform hareketlerine girişmiştir. Avrupa’da anayasal monarşi talebiyle birbiri ardınca devrimler yaşanırken Osmanlı Devleti ve Rusya’nın bundan etkilenmemesi düşünülemezdi. Batı kültürüyle yakından temas halinde olan yükseköğretim kurumları, aydınlarla, siyasi partilerle beraber değişimin en önemli aktörleri olmuştur. Sanayileşme sürecini yakalayamayan ve farklı bir sosyal yapıya sahip olan Osmanlı devletinde işçi sınıfı ve halkın katılımı sınırlı düzeyde kalırken aydınlar, askerler ve öğrenciler anayasal monarşiye (1908) giden yolun öncüsü olmuştur. Dış müdahalelerle Balkanlarda yaşanan isyanlar da önemli faktörler arasındadır. Benzer bir süreci yaşamakla beraber farklı bir sosyal dokuya sahip olan, yabancı yatırımlarla sanayileşmede daha büyük yol kat eden Rusya’da işçi sınıfı, aydınlar ve öğrencilerin şiddetli eylemlerine Japon savaşı yenilgisi eklenince 1905 - 6’da Çar, anayasal monarşiye geçmeyi kabul etmek zorunda kalmıştır.
Visualisation of Mahalanobis Distances for Trivariate JOINT Distributions
Authors: Groenewald Emily , Vuuren Gary Van
Published: March 2024

The Mahalanobis distance is a statistical measure used to quantify the distance between elliptic distributions with distinct locations and shared shapes, while accounting for the variables' covariance structure. It is applicable to both estimative and predictive estimation approaches, where variations are limited to location, and it assesses the similarity or dissimilarity between data and the mean (centroid) of a multivariate distribution, within the family of multivariate elliptic distributions. It is thus useful for outlier identification. The aim of the study is to provide, for the first time, a three-dimensional visualisation of the Mahalanobis distance when the underlying framework comprises three jointly connected variables (rather than the standard two variables presented in textbooks). Data with Mahalanobis distances exceeding a predefined threshold, determined using a  distribution, are considered outliers. This approach is analogous to identifying outliers for univariate distributions based on critical values derived from confidence levels. While the literature mainly discusses the Mahalanobis distance formulation for bivariate distributions, we extend the discussion to include one additional variable and provide a visualisation of the resulting Mahalanobis distance for a trivariate distribution. An empirical example is presented to illustrate a practical application of a trivariate Mahalanobis distance. Visualising outliers alongside other historical events within three-factor systems can offer valuable insights into the risk profile of the current environment and assess the probability of future extreme events.
Pengaruh Pelatihan Kerja dan Disiplin Kerja terhadap Kinerja Karyawan pada PT Krisbow Indonesia
Authors: Maulida Hira , Pratama Angga
Published: March 2024

Tujuan. Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan kerja dan disiplin kerja terhadap kinerja karyawan pada PT. Krisbow Indonesia . Selain itu, penelitian ini juga meneliti peran pelatihan kerja dan disiplin kerja apakah ada keterikatan atau hubungannya dengan kinerja karyawan.Metode. Metode yang digunakan dalam penelitian ini bersifat asosiatif kuantitatif. Populasi berjumlah 65 karyawan. Sampel yang digunakan adalah sampel jenuh sejumlah 65 responden.Hasil. Hasil uji hipotesis secara parsial uji t  diperoleh nilai thitung > ttabel atau (6,904 > 1,999) hal tersebut juga diperkuat dengan nilai signifikansi 0,000 < 0,05. Dengan demikian H0 ditolak H1 diterima maka terdapat pengaruh positif dan signifikansi secara parsial antara pelatihan kerja (X1) dan kinerja karyawan (Y) dapat diterima. Kemudian diperoleh nilai thitung > ttabel atau (9,011 > 1,999) hal ini diperkuat dengan nilai probabiliti signifikansi 0,000 < 0,05. Dengan demikian H0 ditolak H2 diterima maka terdapat pengaruh positif signifikan secara parsial antara disiplin kerja (X2) dan kinerja karyawan (Y). Setelah itu diperoleh nilai Fhitung > Ftabel atau (48,040 > 3,14) hal ini juga diperkuat dengan nilai signifikansi sebesar 0,000 < 0,05. Dengan demikian maka H0 ditolak dan H3 diterima maka terdapat pengaruh yang positif dan signifikan secara simultan antara pelatihan kerja (X1) dan disiplin kerja (X2) terhadap kinerja karyawan (Y).Implikasi. Sebaiknya perusahaan memberikan pelatihan kerja untuk karyawan baru di awal dan karyawan lama secara berkala agar karyawan lebih kompeten di bidang masing-masing dan memperhatikan kedisipinan karyawan agar kinerja lebih optimal
Pengaruh Motivasi dan Disiplin Kerja terhadap Kinerja Karyawan Pada Pt Wahana Express Area Jakarta Selatan
Authors: Nugroho Eko Nurcahyo
Published: March 2024

Tujuan. Penelitian ini bertujuan untuk mengetahui pengaruh motivasi dan disiplin kerja terhadap kinerja karyawan di PT Wahana Express area Jakarta Selatan.Metode. Metode penelitian yang dilakukan adalah metode penelitian kuantitatif asosiatif, dimana metode pengumpulan data dilakukan dengan menyebarkan kuesioner. Populasi penelitian ini adalah karyawan yang bekerja di perusahaan tersebut yang berjumlah 105 karyawan. Penarikan sampel dilakukan dengan metode sampling jenuh. Pengolahan data menggunakan perangkat lunak SPSS versi 26, dengan analisis deskriptif dan pengujian hipotesis analisis regresi linier berganda.Hasil. Hasil penelitian menunjukkan bahwa: (1) secara parsial motivasi berpengaruh signifikan terhadap kinerja karyawan, (2) Disiplin kerja berpengaruh signifikan terhadap kinerja karyawan, dan (3) Motivasi dan disiplin kerja berpengaruh signifikan terhadap kinerja karyawan.Implikasi. Temuan ini dapat menjadi masukan bagi kebijakan dan praktik yang bertujuan untuk meningkatkan kinerja karyawan pada PT Wahana Express Area Jakarta Selatan.
Analisis Penerapan Sistem Informasi Akuntansi Terhadap Kinerja Individu Karyawan Studi Kasus Pada Cafe dan Restoran di Semarang
Authors: Anugrahayu Nabila Isna , Meiriyani Rita
Published: March 2024

Tujuan. Tujuan dari penelitian ini  untuk menganalisis penerapan sistem informasi akuntansi terhadap kinerja individu karyawan Cafe dan Restoran di Semarang.Metode. Metode analisis data dilakukan dengan metode kuantitatif dengan menggunakan Teknik sampling jenuh dengan responden 130 karyawan. Pengumpulan data dalam penelitian ini adalah metode angket atau  kuesioner. Analisis yang digunakan yaitu analisis regresi linier berganda dengan bantuan program SPSS Versi 26.Hasil. Hasil penelitian ini menunjukkan bahwa (1) Pemanfaatan SIA berpengaruh positif dan signifikan terhadap kinerja karyawan; (2) Kualitas SIA berpengaruh negatife dan tidak signifikan terhadap kinerja; (3) Keamanan SIA berpengaruh positif dan signifikan terhadap kinerja; (4) Sarana pendukung berpengaruh negatife dan tidak signifikan terhadap kinerja; (5) kepuasan pengguna berpengaruh positif dan signifikan terhadap kinerja.Implikasi. Untuk menunjang kinerja karyawan dalam suatu perusahaan diperlukan Sistem Informasi Akuntasi (SIA) yang baik karena untuk menciptakan sesuatu informasi keuangan yang akan digunakan oleh pengguna sebagai proses mengambilan keputusan serta mengurangi resiko saat mengambil keputusan.
Analisis Kinerja Karyawan dengan Motivasi Kerja Sebagai Variabel Intervening (Studi Kasus pada Pt. Hwa Seung Indonesia)
Authors: Nafisah Ainun , Sumastuti Efriyani , Indriasari Ika
Published: March 2024

Tujuan. Untuk menganalisis pengaruh gaya kepemimpinan terhadap motivasi karyawan, untuk menganalisis pengaruh gaya kepemimpinan terhadap kinerja karyawan, untuk menganalisis pengaruh budaya kerja terhadap motivasi kerja karyawan, Untuk menganalisis pengaruh budaya kerja terhadap kinerja karyawan, untuk menganalisis pengaruh motivasi kerja terhadap kinerja karyawan, untuk menganalisis pengaruh gaya kepemimpinan terhadap kinerja karyawan yang dimediasi motivasi kerja, untuk menganalisis terdapat pengaruh budaya kerja terhadap kinerja karyawan yang dimediasi motivasi kerja di PT. Hwa Seung Indonesia.Metode. Penelitian ini menggunakan pendekatan kuantitatif. Pada penelitian ini populasi adalah seluruh karyawan di PT. Hwa Seung Indonesia sejumlah 3418 orang, sampel dalam penelitian ini adalah 100 responden. Teknik pengumpulan data menggunakan kuesioner. Teknik analisa data penelitian ini menggunakan model pengukuran (outer model, iner model, dan pengujian hipotesis).Hasil. 1) Gaya kepemimpinan berpengaruh positif dan signifikan terhadap motivasi Kerja (2,333) dan nilai sig 0,003 < 0,05, 2) Gaya kepemimpinan berpengaruh positif dan signifikan terhadap kinerja karyawan (2,195) dan nilai sig 0,002 < 0,05, 3) Budaya kerja berpengaruh positif dan signifikan terhadap terhadap motivasi kerja (2,075) dan nilai sig 0,002< 0,05, 4) Budaya kerja berpengaruh positif dan signifikan terhadap kinerja karyawan (Y). (2,104) dan nilai sig 0,008 < 0,05, 5) Motivasi kerja berpengaruh positif dan signifikan terhadap kinerja karyawan (2,328) dan nilai sig 0,000 < 0,05, 6) Gaya kepemimpinan berpengaruh positif dan signifikan terhadap kinerja karyawan yang dimediasi oleh motivasi kerja (2,680) dan nilai p value sebesar 0,003 < 0,05, 7) Budaya kerja berpengaruh positif dan signifikan terhadap kinerja karyawan yang dimediasi oleh motivasi kerja (2,648) dan nilai p value sebesar 0,004 < 0,05.Implikasi. Pimpinan hendaknya melakukan evaluasi dan menempatkan karyawan sesuai dengan kemampuan, dan karyawan perlu meningkatkan motivasi diri sendiri serta meningkatkan mutu dan kualitas produk dari perusahaan.
Studi Pengaruh Variasi Konsentrasi Garam Dapur (NaCl) sebagai Larutan Elektrolit dan pH Bahan Baku dalam Pembuatan Biobaterai Kering Berbasis Limbah Kulit Pisang Kepok
Authors: Sarah Maya , Zelfi Elfina Rahmania , Kuswara Marisa Pancar , Hasibuan Isti Madinah
Published: March 2024

Batteries are single-use energy. Battery waste disposed on the ground will produce waste that is difficult to decompose naturally. Batteries contain chemicals that are toxic to soil fertility, such as potassium and sodium. One way to utilize battery waste is to turn it into bio-batteries. This research aims to minimize the waste of batteries and kepok banana peels that are underutilized by making environmentally friendly bio-batteries. This study also determines the voltage, current, and power of kepok banana skin-based bio-batteries. The method used is to conduct biobattery trials using paste from kepok banana peels. The results showed that kepok banana peels could conduct electricity to be used as a paste for bio-battery. The most significant voltage generated is 1.38 volts, while the largest current generated is 0.95 A. This bio-battery can last an average of 3 days 8 hours or 92.5 hours.
Pengaruh Perlakuan Awal terhadap Karakteristik Bioetanol dari Limbah Kulit Singkong Karet (Manihot glaziovii)
Authors: Yuniarti Reni , Satria Arysca Wisnu , Wiandini Wandha , Zaezarini Nabhila , Achmad Feerzet , Yusupandi Fauzi
Published: March 2024

Rubber cassava peel waste (Manihot glaziovii) has a high carbohydrate content, so it is feasible to convert it into bioethanol. In general, bioethanol production consists of four steps, pretreatment, hydrolysis, fermentation, and purification. The purpose of this study was to determine the suitable treatment for obtaining bioethanol with the finest characteristics from rubber cassava peel using three treatment variations, the pretreatment process with variations in the dissolving ratio of sodium hydroxide (NaOH) 0.5 M of 1:10; 1:12.5; and 1:15 (w/v), the hydrolysis process with various concentrations of sulfuric acid (H2SO4) of 0.15 N; 0.30 N; and 0.45 N, and the fermentation process with variations in the fermentation time for 3 days, 7 days, and 9 days. Based on the research results, the highest glucose content was 0.91%, with variations in dissolving NaOH 0.5 M 1:15 (w/v) in the pretreatment process and variations in the concentration of 0.30 N H2SO4 in the hydrolysis process, while the highest ethanol content was 68.05% at a fermentation time of 7 days.
Karakterisasi Biofilm Selulosa Bakteri dengan Modifikasi Gliserol secara Ex Situ
Authors: Panjaitan Vera Diana , Iriany  , Sukeksi Lilis
Published: March 2024

Bacterial cellulose (BC) is biomaterial from bacterial fermentation that contain high purity of cellulose, but 90% of BC pellicles retained water from the fermentation process. In this study, BC was modified with glycerol immersion in different concentrations (0%; 2,5%; 5%; 7,5%; 10%). For wide application, water content on BC must be removed by drying. Various oven drying condition are temperature 80 °C and 120 °C and time 60 minutes. The physical and mechanical properties of the dried BC biofilm were determined including tensile strength and elasticity. BC biofilm bound was identified by FTIR and EDX. The results showed that glycerol concentration was able to increase biofilm elasticity from 3.46% to 27.743%. However, glycerol immersion above 7.5% caused a decrease in the tensile strength of BC biofilm. The drying variation of 120 °C produces the highest tensile strength of 7.161 MPa when soaked in 7.5% glycerol. The drying variation of 80 °C produced a biofilm with the best elasticity of 27.473%. The results of FTIR and EDX analysis confirmed that there were differences in the contents of the modified BC.
Aplikasi Edible Coating dari Limbah Kulit Udang dengan Aditif Asap Cair untuk Kemasan Sosis Sapi Antibakteri Ramah Lingkungan
Authors: Ardhiansyah Hanif , Radenrara Dewi Artanti Putri  , Catur Rini Widyastuti  , Widi Astuti  , Negoro Gusti Maulana , Situmorang Monatalia Lamtama , Hamid Delvani Putri Faradilla
Published: March 2024

Edible coating is a food preservation technique by coating using antimicrobial substances which can inhibit the growth of bacteria. This research aims to develop an edible coating from shrimp shell waste with liquid smoke additives as antibacterial packaging for processing beef sausages. Chitosan is made in three stages, namely demineralization, deproteination and deacetylation. Beef sausages coated with edible coating were tested using organoleptic and antibacterial tests. The results of this research showed that the highest degree of deacetylation of chitosan was found in the variable concentration of sodium hydroxide (NaOH) 55% with a degree of deacetylation value of 93.59%. The water and protein content in beef sausages coated with edible coating with liquid smoke showed values of 52.45% and 12.65% on the 7th day. This is in accordance with the Indonesian National Standards (SNI). Coating beef sausages using edible coating from 2% chitosan with 8% liquid smoke solvent has antimicrobial properties because in the antibacterial test a clear zone appeared on the beef sausages coated with edible coating.
Karakteristik Sifat Fisik Membran Elektrolit Polimer Berbasis Kitosan Larva Black Soldier Fly/Polivinil Alkohol/Poliakrilonitril dengan Penambahan Ammonium Klorida
Authors: Muhammad Thoriq Al Fath  , Dalimunthe Nisaul Fadilah , Sidabutar Rivaldi , Michael  , Samosir Rosma Natalia , Thiodorus Marvin Tjandra
Published: March 2024

Black soldier fly larvae shells/BSF-based chitosan can be utilized as polymer electrolyte membrane. This research aims to analyze the physical characteristics of BSF chitosan/PVA/PAN/NH4Cl by varying amount of chitosan and ratio of PVA: PAN. Membrane was fabricated using the phase inversion method. Polymer electrolyte with a mixture of 1.20 g of PVA/PAN with ratio variations of 10:90 and 20:80 and chitosan variations of 2.4 g; 2.8 g; and 3.2 g. Chitosan was also FTIR-characterized. Density and wáter absorption of polymer electrolyte with chitosan composition of 2.4 g; 2.8 g; 3.2 g and PVA/PAN ratio of 10:90 were 0.824 g/mL; 1 g/mL and 1.51 g/mL and water absorption 28.571%; 38.333%; and 46.154%, respectively; and at PVA/PAN ratio of 20:80 were 0.734 g/mL; 1.03 g/mL and 1.096 g/mL and water absorption 62.5%; 66.667% dan 100%, respectively. Best physical property was obtained with the incorporation of 2.4 g of chitosan and 10:90 PVA/PAN ratio.
Pengaruh Jenis Cairan, Jenis Batang, dan Panjang Batang pada Penentuan Distribusi Ukuran Partikel Bubuk Kaca Menggunakan Buoyancy Weighing-Bar Method (BWM)
Authors: Panjaitan Ari Fernando , Sirait Anrocki , Tambun Rondang
Published: March 2024

Particle size distribution is one of the important physical parameters in industry. A new method has been developed, the buoyancy weighing-bar method to determine the particle size distribution. This study examines the application of the buoyancy weighing-bar method for the determination of the particle size distribution of glass powder. Measurements were made by varying the type of liquid, the type of rod, and the size of the rod length. From this study, it was obtained that the best condition in determining the particle size distribution of glass powder is using aluminum rods with a length of 210 mm in 96% ethanol. The results of determining the particle size distribution of glass powder by using the buoyancy weighing-bar method at the best conditions are comparable to the results of determining the particle size distribution obtained using the settling balance method.
From Paper to Screen and from Pen to Keyboard: Digital Reading and Word Processing among Moroccan EFL Learners
Authors: Labradhi Jamal , BenMhamed Mohamed , El Ghouati Azize
Published: March 2024

The paper in hand aims at exploring Moroccan EFL learners' attitudes towards digital reading and word processing as well as the benefits and challenges associated with these two recently spread practices. A convenience sampling technique was utilized by the researchers of the present study to select a sample consisting of 64 EFL learners belonging to the School of Languages, Literature, and Arts, Kenitra. This sample involved 34 males and 30 females whose ages ranged between 21 and 52 years old. The participants were asked to fill out a 5-point Likert scale questionnaire divided into two sections, namely digital reading and word processing. The collected data were then analyzed using the 26th version of Statistical Package for Social Sciences software (SPSS). The findings of the survey indicate that the participants hold positive attitudes towards digital reading and word processing. They also reveal that the informants face challenges in digital reading similar to those they encounter in word processing.
The Taxonomy of Denial as a Speech Act
Authors: Khaya Yassine
Published: March 2024

This paper presents a critical examination of the classification of Denial within Speech Act Theory, advocating for its redefinition from an assertive to a directive speech act. Drawing upon the foundational principles established by J.L. Austin (1962) and further developed by John Searle (1969, 1979), the study applies Searle's twelve dimensions of illocutionary acts to Denial. Through this analytical framework, the paper demonstrates that Denial transcends the mere negation of propositions, actively engaging in modifying the hearer's beliefs or actions, a characteristic inherent to directive acts. The analysis highlights the dual nature of Denial, which not only contests a given proposition but also, and more importantly, endeavours to influence the listener's perspective or behaviour. This re-evaluation challenges traditional views and enriches the discourse on linguistic pragmatics by advocating for a more nuanced and context-sensitive approach to speech act classification. By reclassifying Denial as a directive, this study contributes to a deeper understanding of communicative practices, emphasising the strategic use of language in social interactions and the complex dynamics of speech acts in communication. This reassessment calls for a broader reconsideration of speech act classifications, marking a step towards a more comprehensive representation of language functions within linguistic pragmatics and opening avenues for future research.
Koncepcja zwinności w zarządzaniu organizacjami sportowymi uczestniczącymi w profesjonalnym współzawodnictwie sportowym w odpowiedzi na zmiany w otoczeniu – realia polskie
Authors: Jędrzejczyk Waldemar , Żyła Maciej
Published: March 2024

W dzisiejszych czasach sport staje się ważną gałęzią gospodarki. Organizacje sportowe tworzą najważniejszy produkt rynku sportowego – wydarzenia sportowe. Organizacje sportowe narażone są na szereg zmian, jakie mogą zachodzić w ich otoczeniu. Koncepcją, która może zapobiec negatywnym skutkom zmian zarówno w otoczeniu wewnętrznym, jak i zewnętrznym, jest koncepcja zwinności. Szeroko opisana w literaturze przedmiotu, dzięki swoim komponentom pozwala na identyfikację i adaptację do zmian, dzięki czemu organizacja nie tylko przetrwa zmianę, ale gdy tylko będzie to możliwe, wykorzysta ją jako szansę. W artykule przedstawiono teoretyczne podstawy koncepcji zwinności na podstawie analizy literatury przedmiotu. Część analityczna charakteryzuje organizacje sportowe działające w obszarze profesjonalnej rywalizacji sportowej – realia polskie. W części empirycznej dokonano analizy wiedzy i znaczenia wybranych elementów koncepcji zwinności w zarządzaniu organizacjami sportowymi wśród menedżerów organizacji biorących udział w rozgrywkach sportowych organizowanych przez Polską Ligę Piłki Siatkowej (PLS). Uzyskane wyniki badań potwierdziły, że wykorzystanie mechanizmów działania charakterystycznych dla koncepcji zwinności może przynieść wymierne korzyści organizacjom sportowym działającym w formie spółek akcyjnych zrzeszonych w PLS.
Bariery publicznej regulacji rynku z perspektywy teorii agencji
Authors: Szkudlarek Piotr
Published: March 2024

Celem artykułu jest określenie znaczenia barier ograniczających relację opartą na współpracy pomiędzy organami regulacyjnymi a przedsiębiorstwami w zakresie regulacji. Przyjęto perspektywę urzędników Urzędu Komunikacji Elektronicznej i Urzędu Regulacji Energetyki, wśród których przeprowadzono badania ankietowe. Stwierdzono, że rozbieżność celów i asymetria informacji podkreślane w teorii agencji są także najbardziej istotnymi barierami formalnymi powstania relacji opartej na współpracy. Poza tym wyniki badań wskazują, choć w zdecydowane mniejszym zakresie, na znaczenie barier w postaci biurokracji oraz brak wypracowanych modeli współpracy. Wśród barier nieformalnych wyróżnia się brak zaufania oraz brak partnerskich stosunków współpracy. Nieuczciwość działań dla większości urzędników nie stanowi bariery relacji pomiędzy regulatorem a przedsiębiorstwami. Tym samym istnieje wątpliwość co do możliwości wystąpienia pokusy nadużycia wskazywanej w teorii agencji. Barierą nie jest również brak świadomości konieczności współpracy w zakresie regulacji. Syntetyczne wartości poszczególnych barier wskazują, że znaczenie barier formalnych jest większe od barier nieformalnych. Ponadto w trzech na osiem przypadków bariery formalne i nieformalne mają różne znaczenie dla urzędników „UKE” i „URE”. Zatem, w pewnym zakresie, znaczenie barier jest zależne od rynku, który podlega regulacji. Wyniki badań wskazują na konieczność uzupełnienia tradycyjnego podejścia do regulacji skupiającego się jej motywach i skutkach o podejście bazujące na teorii agencji w zakresie barier współpracy w relacji agent–pryncypał.
Evaluasi Pemahaman Orang Tua Terhadap Hakikat Pendidikan Anak Usia Dini di PAUD TUNAS HARAPAN Kabupaten Seluma
Authors: Janharira Mipa , Bendriyanti Rita Prima , Sari Rika Partika , Haryono Mimpira
Published: March 2024

Tujuan penelitian ini adalah, untuk mendeskripsikan pemahaman orang tua terhadap hakikat pendidikan anak usia dini di PAUD TUNAS HARAPAN Kabupaten Seluma. Penelitian ini merupakan penelitian deskriptif kualitatif yang memiliki makna mendeskripsikan suatu penelitian yang sedang dilaksanakan. Subjek utama dalam penelitian ini adalah orang tua murid pada kelompok B di PAUD TUNAS HARAPAN Kabupaten Seluma berjumlah 15 orang. Teknik pengumpulan data menggunakan metode observasi, wawancara dan dokumentasi. Analisis data dilakukan secara deskriptif kualitatif dengan penekananya pada usaha menjawab pertanyaan-pertanyaan penelitian melalui cara berfikir formal argumentatif. Simpuan penelitian bahwa pemahaman orang tua terhadap pendidikan anak usia dini di PAUD TUNAS HARAPAN Kabupaten Seluma cukup baik terlihat antusias orang tua menyekolahkan anak-anaknya