bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Efektivitas Markerless Mid Air Vuforia dalam Pembelajaran AR Tata Surya
Authors: Noor Indra Febryan , Astuti Ika Asti 
Published: November 2024

Penelitian ini bertujuan untuk mengembangkan dan menguji aplikasi Augmented Reality (AR) berbasis metode markerless dengan pendekatan mid air untuk meningkatkan efektivitas pembelajaran tata surya. Aplikasi ini dirancang untuk mengatasi keterbatasan pada aplikasi AR konvensional, yang sering kali bergantung pada deteksi permukaan datar, serta untuk meningkatkan realisme dan fleksibilitas interaksi antara objek virtual dan lingkungan fisik. Metodologi pengujian mencakup empat skenario berbeda yang mengevaluasi akurasi deteksi ruang 3D di bawah berbagai kondisi pencahayaan. Hasil pengujian menunjukkan bahwa sistem mampu mendeteksi ruang 3D dengan baik pada intensitas cahaya tinggi di luar ruangan (1007 LUX) dan rendah di dalam ruangan (20 LUX). Namun, ketika kamera diarahkan ke tembok polos dengan intensitas cahaya 100 LUX, deteksi ruang 3D gagal. Sebaliknya, pada kondisi malam hari dengan cahaya sangat rendah (di bawah 15 LUX), aplikasi tetap berhasil menempatkan objek 3D secara akurat. Penilaian usability dari 24 responden memberikan skor SUS rata-rata 92,4, menempatkan aplikasi dalam kategori "Acceptable" dengan Grade Scale "A" dan Adjective Rating "Excellent". Temuan ini menegaskan bahwa aplikasi AR yang dikembangkan memiliki potensi signifikan sebagai media pembelajaran interaktif, memberikan visualisasi yang mendalam dan mendukung pemahaman konsep tata surya secara efektif.

Kata kunci: Mid Air, Markerless, Augmented Reality, Tata surya, Usability
Penerapan Naive Bayes Terhadap Sentimen Analisis Media Sosial Twitter Pengguna Commuter Line
Authors: Sunarti Sunarti , Handayanna Frisma , Wulandari Dewi Ayu Nur 
Published: November 2024

Commuter Line ialah salah satu sektor pelayanan publik dibidang transportasi banyak dipergunakan oleh masyarakat saat ini. Sesuai perkembangan teknologi banyak opini masyarakat terhadap pelayanan Commuter Line beredar secara online, untuk menyampaikan opininya masyarakat menggunakan media sosial seperti Twitter. Media Twitter dapat dijadikan sebagai bahan evaluasi peningkatan kualitas layanan. Twitter memudahkan pelanggan untuk menyampaikan keluhan serta pendapat terkait layanan seperti PT KAI Commuter. Untuk memahami komentar pelanggan, persepsi layanan publik, dan mendapatkan opini baru maka perlu dilakukan analisis sentimen terhadap pelayanan Commuter Line. Analisis sentimen ini bertujuan untuk mengklasifikasikan tweets masyarakat terhadap layanan Commuter Line ke dalam sentimen complain dan not complain dengan menggunakan metode Naive Bayes. Metode ini mempunyai tingkat akurasi paling tinggi dalam pengklasifikasian analisis sentimen. Data yang diunduh dari Twitter menggunakan aplikasi RapidMiner sebanyak 1.010 tweet dan data validasi sebanyak 1.003 tweets. Pada akhir tahap penelitian diperoleh accuracy 78,11%, precision 81,76%, recall 72,51%, dan AUC yang didapat sebesar 0,814.

Kata kunci: Analisis sentimen; Commuter Line; Twitter; Naive Bayes
Pengembangan E-Commerce Hasil Peternakan Menggunakan Metode Location Based Service Dengan Algoritma Haversine berbasis Android
Authors: Gobel Citra Yustitya , Sennung Bahtiar , Nua Salma  P 
Published: November 2024

Peran E-Commerce dalam mendukung Program Digital Economi sangat dibutuhkan daerah kabupaten Gorontalo untuk membantu memperkuat ekonomi lokal dengan memfasilitasi akses ke pasar yang lebih luas, Urgensi Penelitian berdasarkan study literatur dan hasil observasi mengangakat permasalahan bahwa belum ada terdapat penelitian pengembangan aplikasi e-commerce khusunya hasil peternakan menggunakan Location Based serviced dengan metode havesine sehingga Penelitian ini bertujuan untuk membangun aplikasi E-Commerce Menggunakan integrasi Metode Location Based Service dengan Algoritma Haversisne berbasis Android pada pemasaran hasil Peternakan daerah kabupaten gorontalo sehingga dapat menawarkan solusi inovatif untuk menghubungkan peternak dengan konsumen melalui platform digital. Metode ini memanfaatkan layanan berbasis lokasi untuk menentukan jarak antara penjual dan pembeli secara akurat, memungkinkan optimalisasi distribusi hasil ternak dan pengiriman yang lebih efisien. Hasil pengembangan menunjukkan bahwa LBS dan algoritma Haversine mampu memberikan efisiensi dalam pengelolaan distribusi dan pemetaan pasar lokal dengan hasil perhitungan jarak tempuh mengunakan google Maps sejauh 23,3 km, sedangkan hasil menggunakan algoritma haversine lebih cepat yaitu 12,1 km, terdapat perbedaan jaarak tempuh sekitar 11 km. Platform ini juga meningkatkan akses pasar bagi peternak lokal, memberikan peluang pemasaran yang lebih baik, serta memperkuat ekosistem perdagangan hasil ternak berbasis digital.
Kata kunci: E-Commerce; Peternakan; Location base Service; Haversine; Android
Implementasi Model Algoritma C4.5 Untuk Klasifikasi Status Stunting Di Kabupaten Sikka
Authors: Darkel Yohanes Brekmans M , Ermilinda Lindiana , Yulianto Gabriel Kurniawan Al , Pacolinus Claudia Fransiska 
Published: November 2024

Kekurangan gizi menjadi masalah dalam tumbuh kembang anak yang dapat menyebabkan stunting, wasting, mudah terkena penyakit serta penurunan kecerdasan otak dan mental. Stunting di Kabupaten Sikka pada tahun 2022 sebesar 13,8% dari hasil e-PPGBM periode Bulan Agustus 2022. Untuk mengatasi masalah ini diperlukan klasifikasi status stunting yang sangat berpengaruh terhadap tumbuh kembang anak sehingga dapat memberikan perhatian lebih dari faktor stunting yang paling tinggi di suatu daerah. Dengan bertambahnya jumlah balita dan peningkatan kasus stunting, proses penyelesaian tidak bisa dilakukan dengan cepat. Selain itu, tidak semua petugas posyandu bisa menghitung status gizi balita secara manual. Oleh karena itu, agar orang tua dan kader posyandu dapat mengetahui kondisi anak lebih cepat, diperlukan sistem yang menggunakan model algoritma C4.5. Sistem ini mampu mengolah data numerik (kontinu) dan diskrit. Penelitian ini menggunakan 5 atribut, yaitu usia, inisiasi menyusui dini (Imd), tinggi badan, jenis kelamin, dan berat badan. Keistimewaan penelitian ini adalah penggunaan atribut Inisiasi Menyusui Dini (IMD) yang belum pernah digunakan dalam penelitian sebelumnya dengan data numerik. Penggunaan algoritma C4.5 untuk menganalisis hasil stunting dan menyajikannya dalam bentuk website menghasilkan tingkat akurasi yang tidak jauh berbeda dengan pembagian data latih dan data uji sebesar 92.68 dan 90.98% dengan Max Dept 10.

Kata kunci: Algoritma C4.5, Stunting, Balita, Klasifikasi, Website
History of the Early Establishment of the Abbasiyah Dynasty
Authors: Firma Hafmi  , Fatmawati  , Muhammad Hanafi  
Published: November 2024

This research aims to explore in-depth the formation process of the Abbasid Dynasty in the history of Islamic civilization. This qualitative study employs a historical approach to understand two key methods in this process. Data collection techniques involve literature reviews and historical document analysis, while data analysis is conducted through content analysis. Data validation is carried out by cross-referencing various historical sources to ensure the accuracy of the information. The research findings indicate that the Abbasid Dynasty used propaganda through secret networks to gain public support and garner sympathy from various segments of society, as well as to build military strength to challenge and overthrow the Umayyad power. This study reveals the crucial role of political communication and military strategy in the formation and stability of the government, as well as its impact on the political and social dynamics of the society at that time. Thus, this research provides a comprehensive insight into the formation process of the Abbasid Dynasty and its impact on Islamic civilization.
Effect of cigarette smoking on the optical properties of contemporary dental ceramics: an in-vitro analysis
Authors: Alqahtani Abdulaziz , AlHelal Abdulaziz A. , Albani Ragad , Ali Mohsin , Badghshar Omar Ali Omar , Khan Aleshba Saba , Habib Syed Rashid 
Published: November 2024

Background
Cigarette smoking is the most common form of tobacco use worldwide. With the frequent introduction of new dental materials, the effect of smoking on their optical properties such as long term color stability, should to be thoroughly investigated.

Objective
This in-vitro study aims to investigate the effect of smoking on the optical properties of contemporary dental ceramics used currently for restoration of teeth.

Methods
Five different materials in two shades (B1 and C1) were used with 15 samples from each pressable lithium disilicate (Emax), layered lithium disilicate (Lmax), porcelain fused to metal (PFM), monolithic zirconia (MZr) and layered zirconia (LZr) were used (n = 75). The samples were exposed to conventional cigarette smoke and color stability was assessed at four different time intervals i.e., baseline, 1 week, 1 month and 6 months. CIELAB color space (CIE L*a*b*) values were used to evaluate the color difference (ΔE). A one-way analysis of variance (Anova) was used for statistical analysis of ΔE. Significant P-value was kept as <0.05, followed by Tukey post-hoc test.

Results
All test materials demonstrated significant color differences (ΔE) after exposure to cigarette smoke (p < 0.05). For shade B1, the highest change in shade ΔE 17.02 was exhibited by Lmax, whereas the least change in shade was exhibited by Emax followed by PFM at values of ΔE 10.11 and 11.2 respectively. For shade C1, the highest change (11.47) in shade at 6 months was demonstrated by MZr, whereas lowest values of ΔE were exhibited by Emax (7.52).

Conclusions
Traditional smoking causes significant change in shade of dental ceramics which can affect the esthetics of the patients. All material samples tested showed the values of ΔE > 3.3 which is higher than the acceptable range. Lowest color change was observed in Emax and PFM.
The effects of plasma from patients with active thyroid-associated orbitopathy on the survival and inflammation of melanoma-associated fibroblasts
Authors: Chen Huifang , Chen Shiyuan , Liu Zhenfeng 
Published: November 2024

Background
Plasma from patients with active thyroid-associated orbitopathy (TAO-A) could cause inflammation to fibroblasts, and such a mechanism was explored in the context of melanoma.

Methods
Plasma samples collected from TAO-A patients and healthy control (HC) were primarily co-cultured with the melanoma-associated fibroblasts (MAFs) derived from melanoma patients. The survival and inflammation of the co-cultured MAFs were measured after confirming the levels of pro-inflammatory cytokines. Ki67 and Vimentin (VIM) markers were analyzed by immunofluorescence, and cell survival and migration were assessed using cell counting kit-8 (CCK-8) and Transwell. The THP-1 cells were induced to differentiate into macrophages, which were subsequently co-cultured to assess M1/M2 polarization status. Meanwhile, the levels of inflammatory factor were detected by enzyme-linked immunosorbent assay (ELISA). The gene expression was measured by reverse transcription quantitative PCR (RT-qPCR), and the activation of PI3K/AKT, STAT1, p65, and ERK signaling pathways was detected by Western Blot.

Results
Plasmas derived from TAO-A patients were characterized by elevated levels of pro-inflammatory cytokines, which enhanced the inflammation status and survival of MAFs, promoted the levels of PI3K and AKT, and downregulated expression of Bax. The co-culture of the plasma with MAFs evidently promoted M1 polarization and the phosphorylation of STAT1, P65 and ERK1/2.

Conclusion
These findings proved the effects of the plasmas of TAO-A patients on the survival and inflammation of MAFs, providing evidence for future studies to delve into the relevant mechanisms.
Effects of Ancylostoma ceylanicum Infection on Lactate Dehydrogenase Activity in Tissues of Mesocricetus auratus
Authors: P.S. Rajani, 
Published: November 2024

Aim: The present research aims to study the effects of Ancylostoma ceylanicum infection on lactate dehydrogenase activity in the tissues of Mesocricetus auratus.
Methodology: In the current investigation, Ancylostoma ceylanicum, a hookworm was infected in the host, a hamster Mesocricetus auratus experimentally in laboratory conditions in Hyderabad from 1992 to 1996. The infected host was then studied using the parameters of Lactate dehydrogenase activity in various tissues. The Lactate Dehydrogenase content in M. auratus was investigated biochemically in both the infected and control samples.
Results: The results revealed increased levels of Lactate dehydrogenase in the intestinal and muscle tissue of the infected host. Decreased LDH content in the liver, kidney, spleen, lungs, brain and serum was found in the infected host of Lactate Dehydrogenase as the anaerobic conditions prevail in the intestinal region of the host infected with hookworm infection.
Conclusion: The present paper reveals the Lactate dehydrogenase content in Mesocricetus auratus infected with Ancylostoma ceylanicum as compared to control and its significance.
Effect of Biofertilizers on Soil Quality Parameters in Gerbera (Gerbera jamesonii bolus) Cultivation
Authors: Borah Nilasree , Mahanta Pradip , Borah Nilay 
Published: November 2024

A field experiment was carried out at the Experimental Farm, Department of Horticulture, Assam Agricultural University, Jorhat, during the periods of 2015-2016 and 2016-2017. The experiment was set in Randomized Block Design (RBD) consisting of three replications and eight treatments. The Treatments comprised of T0 (Control), T1 {Bacillus subtilis (4% solution)}, T2 {Microbacterium laevaniformans (4% solution)}, T3 NPK (@15:10:20 g m-2), T4 Vermicompost (5 kg per plot), T5 (½ NPK + ½ Vermicompost + Bacillus subtilis), T6 (½ NPK + ½ Vermicompost + Microbacterium laevaniformans), T7 (½ NPK + ½ Vermicompost + Consortium) and T8 (Consortium). The results revealed that the soil parameters were significantly influenced by the treatments. Studies revealed that soil pH (5.26), Organic Carbon (0.86%), N (276.9 kg ha-1), K (135.1kg ha-1), Microbial Biomass Carbon (379.23µg g-1soil 24 hour-1) were found highest in T4. For P (44.6 kg ha-1) and Electrical Conductivity (0.19 dS/m) was recorded highest in treatment T7.
Cranial and endocranial diversity in extant and fossil atelids (Platyrrhini: Atelidae): A geometric morphometric study
Authors: Aristide Leandro , Strauss André , Halenar‐Price Lauren B. , Gilissen Emmanuel , Cruz Francisco W. , Cartelle Castor , Rosenberger Alfred L. , Lopes Ricardo T. , dos Reis Sergio F. , Perez S. Ivan 
Published: April 2019

AbstractObjectivesPlatyrrhines constitute a diverse clade, with the modern Atelidae exhibiting the most variation in cranial and endocast morphology. The processes responsible for this diversification are not well understood. Here, we present a geometric morphometric study describing variation in cranial and endocranial shape of 14 species of Alouatta, Ateles, Brachyteles, and Lagothrix and two extinct taxa, Cartelles and Caipora.MethodsWe examined cranial and endocranial shape variation among species using images reconstructed from CT scans and geometric morphometric techniques based on three‐dimensional landmarks and semilandmarks. Principal components analyses were used to explore variation, including the Procrustes shape coordinates, summing the logarithm of the Centroid Size, the common allometric component, and residual shape components.ResultsDifferences in endocranial shape are related to a relative increase or decrease in the volume of the neocortex region with respect to brainstem and cerebellum regions. The relative position of the brainstem varies from a posterior position in Alouatta to a more ventral position in Ateles. The shape of both the cranium and endocast of Caipora is within the observed variation of Brachyteles. Cartelles occupies the most differentiated position relative to the extant taxa, especially in regards to its endocranial shape.ConclusionsThe pattern of variation in the extant species in endocranial shape is similar to the variation observed in previous cranial studies, with Alouatta as an outlier. The similarities between Caipora and Brachyteles were unexpected and intriguing given the frugivorous adaptations inferred from the fossil's dentition. Our study shows the importance of considering both extant and fossil species when studying diversification of complex traits.
High efficiency of Mn–Ce‐modified TiO2 catalysts for the low‐temperature oxidation of Hg0 under a reducing atmosphere
Authors: Zhang Yingjie , Ning Ping , Wang Xueqian , Wang Langlang , Ma Yixing , Ma Qiang , Xie Yibing 
Published: April 2019

Manganese‐ and cerium oxide‐modified titania catalysts were prepared by the deposition precipitation for the removal of elemental mercury (Hg0) from simulated yellow phosphorus off‐gas at low temperature. In addition, these catalysts were characterized by X‐ray diffraction, Brunauer–Emmett–Teller measurements, X‐ray photoelectron spectroscopy and field‐emission scanning electron microscope to determine the surface morphology of the obtained compounds and explore their formation mechanism. The results revealed that a Mn–Ce loading and reaction temperature of 10% and 150 °C, respectively, as well as a Mn/Ce molar ratio of 2:1, led to an optimal efficiency for the oxidation of elemental mercury. Furthermore, the effects of flue gas components were investigated. The presence of O2 clearly promoted the oxidation of Hg0. A CO atmosphere did not affect the Hg0 oxidation, when compared with N2, whereas the presence of H2S and water vapor inhibited the oxidation process. Furthermore, the X‐ray photoelectron spectroscopy spectra of Hg 4f revealed that the elemental mercury adsorbed by the catalyst is present as HgO. Finally, the Hg0 catalytic oxidation mechanism was discussed on the basis of the experimental results and characterization analysis.
Ultra‐deep desulfurization of a model fuel using novel VOHPO4 0.5H2O/boehmite catalysts
Authors: Najafi Chermahini Alireza , Moslemi Ali , Mohammadnezhad Gholamhossein 
Published: April 2019

A high‐surface‐area boehmite was used as the support for a series of vanadium phosphate catalysts. The catalysts were prepared by heating of V2O5 in an isobutyl alcohol and benzyl alcohol mixture at 140°C for 5 h to reduce V5+ to more active V4+ in the presence of phosphoric acid. Then a series of catalysts with various VPO loadings on boehmite were synthesized. The catalysts were characterized using various techniques. The catalysts were utilized for extraction combined with catalytic oxidation of dibenzothiophene. The important factors influencing the desulfurization process, including reaction time, temperature, H2O2, catalyst loading, catalyst amount and solvents, were systematically investigated. Under the optimized reaction conditions, i.e. 30 mg of catalyst loading at 50°C and in 60 min, sulfur removal reached 94%. The catalyst was recycled and reused five times.
Asynchronous H∞ filtering for time delayed APF with MDADT based on T‐S fuzzy model
Authors: Zhang Liangliang , Zhang Hongbin , Li Yang 
Published: April 2019

AbstractThis paper investigates the H∞ asynchronous filtering problem for active power filter (APF) systems with time delayed to monitor the states of these systems. APF system is represented by T‐S fuzzy model. The phenomenon of asynchronous often appears in the practical system. And in this paper, asynchronous means that the switching of the filters we designed has a lag to the switching of the system models. By using the MDADT and the Lyapunov‐Krasovskii function methods, the switching filtering error system is delay‐dependent stability and has the H∞ performance. The filter parameter is solved by linear matrix inequalities (LMIs). A simulation example is given to show the efficiency of the proposed methods.
Synthesis and Characterization of Hydrophilic Trityl Radical TFO for Biomedical and Biophysical Applications
Authors: Qu Yuying , Li Yingchun , Tan Xiaoli , Zhai Weixiang , Han Guifang , Hou Jingli , Liu Guoquan , Song Yuguang , Liu Yangping 
Published: April 2019

AbstractTetrathiatriarylmethyl (TAM, trityl) radicals have found wide applications as spin probes/labels for EPR spectroscopy and imaging, and as polarizing agents for dynamic nuclear polarization. The high hydrophilicity of TAM radicals is essential for their biomedical applications. However, the synthesis of hydrophilic TAM radicals (e.g., OX063) is extremely challenging and has only been reported in the patent literature, to date. Herein, an efficient synthesis of a highly water‐soluble TAM radical bis(8‐carboxyl‐2,2,6,6‐tetramethylbenzo[1,2‐d:4,5‐d′]bis([1,3]dithiol‐4‐yl)‐mono‐(8‐carboxyl‐2,2,6,6‐tetrakis(2‐hydroxyethyl)benzo[1,2‐d:4,5‐d′]bis([1,3]dithiol‐4‐yl)methyl (TFO), which contains four additional hydroxylethyl groups, relative to the Finland trityl radical CT‐03, is reported. Similar to OX063, TFO exhibits excellent properties, including high water solubility in phosphate buffer, low log P, low pKa, long relaxation times, and negligible binding with bovine serum albumin. On the other hand, TFO has a sharper EPR line and higher O2 sensitivity than those of OX063. Therefore, in combination with its facile synthesis, TFO should find wide applications in magnetic resonance related fields and this synthetic approach would shed new light on the synthesis of other hydrophilic TAM radicals.
LifeWatch observatory data: Zooplankton observations in the Belgian part of the North Sea
Authors: Mortelmans Jonas , Goossens Jolien , Amadei Martínez Luz , Deneudt Klaas , Cattrijsse André , Hernandez Francisco 
Published: April 2019

AbstractThrough regular sampling surveys, the Flanders Marine Institute (VLIZ) is generating a long‐term data series for the Belgian coastal water and sandbank system, a designated site in the Long Term Ecological Research (LTER) network. The data series is built from sampling activities initiated in 2012 in the framework of the LifeWatch marine observatory. Nine nearshore stations are sampled monthly, with an additional eight offshore stations sampled seasonally. This paper presents the generated data series for zooplankton densities and size measurements, analysed using a ZooScan plankton imaging device together with the ZooProcess and Plankton Identifier software packages. To date 673.017 biological particles have been collected and identified. The collection and processing of the 2012–2018 dataset is described, along with its data curation and quality control. Yearly versions of the data are published in a standardized format together with environmental parameters, accompanied by an extensive metadata description and labelled with digital identifiers for traceability. The data are published under a CC‐BY 4.0 license, allowing use of the data under the condition of providing the reference to the original source.