bluuebunny/crossref_metadata_2025_split huggingface dataset:
Network Structure and Community Evolution Online: Behavioral and Emotional Changes in Response to COVID-19
Authors: Fang Fan , Wang Tong , Tan Suoyi , Chen Saran , Zhou Tao , Zhang Wei , Guo Qiang , Liu Jianguo , Holme Petter , Lu Xin 
Published: January 2022

Background: The measurement and identification of changes in the social structure in response to an exceptional event like COVID-19 can facilitate a more informed public response to the pandemic and provide fundamental insights on how collective social processes respond to extreme events.Objective: In this study, we built a generalized framework for applying social media data to understand public behavioral and emotional changes in response to COVID-19.Methods: Utilizing a complete dataset of Sina Weibo posts published by users in Wuhan from December 2019 to March 2020, we constructed a time-varying social network of 3.5 million users. In combination with community detection, text analysis, and sentiment analysis, we comprehensively analyzed the evolution of the social network structure, as well as the behavioral and emotional changes across four main stages of Wuhan's experience with the epidemic.Results: The empirical results indicate that almost all network indicators related to the network's size and the frequency of social interactions increased during the outbreak. The number of unique recipients, average degree, and transitivity increased by 24, 23, and 19% during the severe stage than before the outbreak, respectively. Additionally, the similarity of topics discussed on Weibo increased during the local peak of the epidemic. Most people began discussing the epidemic instead of the more varied cultural topics that dominated early conversations. The number of communities focused on COVID-19 increased by nearly 40 percent of the total number of communities. Finally, we find a statistically significant “rebound effect” by exploring the emotional content of the users' posts through paired sample t-test (P = 0.003).Conclusions: Following the evolution of the network and community structure can explain how collective social processes changed during the pandemic. These results can provide data-driven insights into the development of public attention during extreme events.
Ticks and Tick-Borne Pathogens in Domestic Animals, Wild Pigs, and Off-Host Environmental Sampling in Guam, USA
Authors: Weaver Genevieve V. , Anderson Neil , Garrett Kayla , Thompson Alec T. , Yabsley Michael J. 
Published: January 2022

Background: Guam, a United States of America (USA) island territory in the Pacific Ocean, is known to have large populations of ticks; however, it is unclear what the risk is to wildlife and humans living on the island. Dog (Canis familiaris), cat (Felis catus), and wild pig (Sus scrofa) sentinels were examined for ticks, and environmental sampling was conducted to determine the ticks present in Guam and the prevalence of tick-borne pathogens in hosts.Methods and Results: From March 2019-November 2020, ticks were collected from environmental sampling, dogs, cats, and wild pigs. Blood samples were also taken from a subset of animals. A total of 99 ticks were collected from 27 environmental samples and all were Rhipicephalus sanguineus, the brown dog tick. Most ticks were collected during the dry season with an overall sampling success rate of 63% (95% CI: 42.4–80.6). 6,614 dogs were examined, and 12.6% (95% CI: 11.8–13.4) were infested with at least one tick. One thousand one hundred twelve cats were examined, and six (0.54%; 95% CI: 0.20–1.1) were found with ticks. Sixty-four wild pigs were examined and 17.2% (95% CI: 9.5–27.8) had ticks. In total, 1,956 ticks were collected and 97.4% of ticks were R. sanguineus. A subset of R. sanguineus were determined to be the tropical lineage. The other tick species found were Rhipicephalus microplus (0.77%), Amblyomma breviscutatum (0.77 %), and a Haemaphysalis sp. (0.51%). Blood samples from 136 dogs, four cats, and 64 wild pigs were tested using polymerase chain reaction (PCR) and DNA sequencing methods. Five different tick-borne pathogens with the following prevalences were found in dogs: Anaplasma phagocytophilum 5.9% (95% CI: 2.6–11.3); Anaplasma platys 19.1% (95% CI: 12.9–26.7); Babesia canis vogeli 8.8% (95% CI: 4.6–14.9); Ehrlichia canis 12.5% (95% CI: 7.5–19.3); Hepatozoon canis 14.7% (95% CI: 9.2–28.8). E. canis was detected in one cat, and no tick-borne pathogens were detected in wild pigs. Overall, 43.4% (95% CI: 34.9–52.1) of dogs had at least one tick-borne pathogen. Serological testing for antibodies against Ehrlichia spp. and Anaplasma spp. showed prevalences of 14.7% (95% CI: 9.2–28.8) and 31.6% (95% CI: 23.9–40), respectively.Conclusion: Four different tick species were found in Guam to include a Haemaphysalis sp., which is a previously unreported genus for Guam. Dogs with ticks have a high prevalence of tick-borne pathogens which makes them useful sentinels.
ReRec: A Divide-and-Conquer Approach to Recommendation Based on Repeat Purchase Behaviors of Users in Community E-Commerce
Authors: Wu Jun , Li Yuanyuan , Shi Li , Yang Liping , Niu Xiaxia , Zhang Wen 
Published: January 2022

Existing studies have made a great endeavor in predicting users’ potential interests in items by modeling user preferences and item characteristics. As an important indicator of users’ satisfaction and loyalty, repeat purchase behavior is a promising perspective to extract insightful information for community e-commerce. However, the repeated purchase behaviors of users have not yet been thoroughly studied. To fill in this research gap from the perspective of repeated purchase behavior and improve the process of generation of candidate recommended items this research proposed a novel approach called ReRec (Repeat purchase Recommender) for real-life applications. Specifically, the proposed ReRec approach comprises two components: the first is to model the repeat purchase behaviors of different types of users and the second is to recommend items to users based on their repeat purchase behaviors of different types. The extensive experiments are conducted on a real dataset collected from a community e-commerce platform, and the performance of our model has improved at least about 13.6% compared with the state-of-the-art techniques in recommending online items (measured by F-measure). Specifically, for active users, with w=1 and NUA∈5,25, the results of ReRec show a significant improvement (at least 50%) in recommendation. With α and σ as 0.75 and 0.2284, respectively, the proposed ReRec for unactive users is also superior to (at least 13.6%) the evaluation indicators of traditional Item CF when NUB∈6, 25. To the best of our knowledge, this paper is the first to study recommendations in community e-commerce.
Estrategias de mejora según el análisis FODA de un sistema provincial de extensión agrícola
Authors: Hinojosa Benavides Rene Antonio , De la Cruz Marcos Ruggerths Neil , Yzarra Aguilar Adelfa , Quispe Rodríguez Juan 
Published: January 2022

El sistema provincial de extensión agrícola (SIPEA) se caracteriza por elevar la productividad agropecuaria en aras de mejorar la calidad de vida del productor agropecuario, y al no reflejarse esos resultados esperados en las comunidades de la provincia de Acobamba, región Huancavelica, Perú, se abordó la problemática de extensión en el campo agrícola con el objetivo de analizar el SIPEA de dicha provincia, a fin de formular una propuesta que enlace sus componentes en aras de una mejora de la calidad del servicio. Se realizó un análisis situacional de los factores externos e internos, mediante el planeamiento estratégico, así como también se recolectó la información primaria desde agricultores y profesionales, involucrados en los quehaceres agropecuarios; encontrándose como principales fortalezas, debilidades, oportunidades y amenazas, la alta disponibilidad de recursos naturales, el creciente consumo de productos introducidos, el incremento de centros de ventas de productos orgánicos y la importación de productos agrícolas foráneos, respectivamente, concluyendo que, los actores responsables de liderar el SIPEA en Acobamba, realizan actividades de extensión en función a objetivos institucionales, con una débil presencia y pobres resultados, por lo que la magnitud del impacto del SIPEA es insuficiente para la mejora de los niveles productivos de dicha provincia.
Densidad estomática de arveja (Pisum sativum) por microscopía electrónica de barrido en relación al rendimiento
Authors: Cherrepano Manrique Reynado Francisco , Cruz Nieto Dante Daniel , Vélez Chang Yasmin Jesús , Legua Cárdenas José Antonio 
Published: January 2022

El objetivo fue determinar la densidad estomática, por microscopía electrónica, de hojas de arveja cultivada a diferentes dosis de nitrógeno y distanciamientos entre plantas, para obtener mayor rendimiento. Por lo que se instaló el área experimental empleando el Diseño de Bloques Completamente al Azar, con seis tratamientos que constaron de F1= 00 - 70 - 70, F2= 80 – 70 – 70 y F3 120 – 70 – 70 kg/ ha y D1 =1.5m * 0.25 m y D2 =1.5 m * 0.35m, obteniéndose los tratamientos: T1 = F1 * D1, T2 = F1 * D2, T3 = F2 * D1, T4 = F2 * D2, T5 = F3 * D1 y T6= F3 * D2, estas dosis se aplicaron a los 17 y 62 días después de la siembra. Luego se evaluó desde la siembra hasta la cosecha y los datos se procesaron mediante análisis de varianza y Duncan, también se analizó la concentración de nitrógeno y la densidad estomática por tratamiento. Los resultados determinaron que el T5 sobresalió en longitud de planta con 129.3 cm, rendimiento comercial con 13.25 tn/ha y T4 en peso de vainas por planta con 633.4 g y número de vainas por planta con 51. En análisis foliar el T6 con 6.69 % de nitrógeno y densidad estomática el T5 con 98 estomas/ mm2. Se concluye que, a mayor dosis de nitrógeno y menor distanciamiento, que es T5 con 98 estomas/mm2 y concentración de 5.83 g de nitrógeno/100 g de materia seca influyeron en el rendimiento.
Continuous-flow synthesis of ultrahigh luminescent perovskite nanocrystals using forced thin film reactor and application for light-emitting diodes
Authors: Umemoto Kazuki , Yokoyama Masaaki , Kikuchi Keisuke , Kimura Taisei , Oshita Naoaki , Sato Ryota , Asakura Satoshi , Masuhara Akito 
Published: January 2022

Abstract
Owing to their excellent optical properties, organolead halide perovskite nanocrystals (PeNCs) have gained significant attention. Considering their industrial contribution, exploring practical production of high-quality PeNCs is of major importance. In this work, we demonstrate continuous-flow synthesis of ultrahigh luminescent PeNCs with high color purity using a forced thin film reactor. We successfully demonstrate the effectiveness of this reactor as a crystal growth environment. The photoluminescence quantum yields were improved to 94% as a result of the unique mixing process. After film formation, this reactor enabled the application for perovskite light-emitting diodes.
Brillouin gain spectrum manipulation using multifrequency pump and probe for slope-assisted BOTDA with wider dynamic range
Authors: Hoshino Kazuki , Saito Daiki , Endo Yuma , Hasegawa Takahiro , Tanaka Yosuke 
Published: January 2022

Abstract
We propose slope-assisted Brillouin optical time domain analysis (SA-BOTDA) with virtual Brillouin gain spectrum (BGS) generated by a multifrequency pump and probe. The virtual BGS having a wide linear slope region of 100 MHz is easily generated by employing a time-to-space spectral shaping technique that has been originally developed for generating short optical pulses. We demonstrate the distribution of virtual BGS realized by using five spectral components of pump and probe.
Peran Guru Dalam Menerapkan Kebersihan Diri Pada Anak di TK Negeri Pembina Keliling Danau
Authors: Ogemi Penia Lisa , Eliza Delfi 
Published: January 2022

Cleanliness is a very important thing to pay attention to, especially personal hygiene in early childhood. Because at an early age children experience a process of rapid growth and development, cleanliness is the main thing that must be considered because children are very susceptible to disease. This requires teachers to be able to apply personal hygiene to children. This study aims to describe the teacher's role in implementing personal hygiene in children. The Pembina Keliling Danau State Kindergarten became the research subject, namely one principal and seven teachers. The use of qualitative analysis in this study with observation, interviews and documentation techniques as data collection. The result of the research is that the teacher motivates children in terms of maintaining cleanliness, providing guidance and praise to children. As well as the use of varied and interesting media also involve children in the activities carried out.
RELEVANSI UNDANG-UNDANG CIPTA KERJA (OMNIBUS LAW) TERHADAP PERLINDUNGAN LINGKUNGAN HIDUP DALAM KERANGKA GATT-WTO
Authors: Kurniawan Adi 
Published: January 2022

Pada masa pemerintahan Jokowi-Ma’ruf, Indonesia digiring ke arah politik investasi. Dari segi domestik, Indonesia berhasil meloloskan Omnibus Law untuk penciptaan lapangan kerja. Dengan berbagai tawaran kesejahteraan melalui lapangan kerja dan peluang investasi, di satu sisi keberadaan dari Undang-undang Cipta Kerja tersebut berpotensi mengancam kepentingan lingkungan, tidak hanya bagi eksistensi masyarakat itu sendiri namun juga pada wilayah yang dimiliki serta sumber-sumber penghidupan di dalamnya. Omnibus Law dikhawatirkan akan memangkas dan mengubah konsep syarat- syarat administrasi, hal ini terkait dengan praktek usaha yang akan menyebabkan kerusakan/mengubah fungsi ruang atau lingkungan antara lain adanya sentralisasi kebijakan, menghilangkan pelibatan masyarakat, fleksibilitas dan penyesuaian tata ruang, penghilangan izin mendirikan bangunan, reduksi atas substansi AMDAL, dan penghapusan sanksi pidana lingkungan. Selain itu Konsep Omnibus Law dimaksudkan untuk memudahkan investor untuk menanamkan modal di Indonesia. Namun Persoalan lingkungan hidup bukanlah persoalan yang berdiri sendiri, tetapi selalu terkait dengan berbagai persoalan kehidupan bahkan kehidupan antar Negara atau persoalan hubungan antar Negara yang notabenenya memiliki irisan dengan persetujuan dalam perundingan di WTO dalam konteks pengelolaan dan perlindungan lingkungan hidup. Hal inlah yang menjadi urgensi perlu adanya komitmen Pemerintah dalam mengelola investasi yang berdasar pada kelangsungan lingkungan hidup yang berkualitas
PERLINDUNGAN HUKUM BAGI PEMEGANG HAK DESAIN INDUSTRI ECO BOTTLE TERHADAP TINDAKAN PEMALSUAN (STUDI PERBANDINGAN DENGAN AMERIKA SERIKAT)
Authors: Nugroho Muyassar 
Published: January 2022

Perkembangan industri botol di Indonesia saat ini memunculkan permasalahan baru dimana kemiripan desain botol antar beberapa merek merupakan permasalahan baru yang muncul. Pemegang hak desain industri botol yang seharusnya sangat dilindungi belum sepenuhnyamendapatkan perlindungan hukum yang kuat dan belum ada regulasi yang membahas secara detail tentang imitasi/pemalsuan desain. Penulisan ini menggunakan metode komparatif yaitu penulis membandingkan dengan Amerika Serikat yang telah melindungi pemegang Hak Desain Industri sejak tahun 1989 dan terbukti berhasil melindungi pemegang Hak Desain Industri, oleh karena itu perbandingan ini penting agar peraturan tentang Hak Desain Industri di Indonesia dapat bermanfaat bagi pemegang hak desain industri.
Perbedaan PERBEDAAN NILAI LEKOSIT ANTARA KOMPONEN DARAH PACKED RED CELLS (PRC) DAN PACKED RED CELLS LEUCODEPLETED (PRC-LD) DI UTD PMI KOTA SURABAYA TAHUN 2019
Authors: Primasari Renata 
Published: January 2022

Abstract
This leukodepleted PRC (PRC-LD) is considered capable of preventing reactions related to blood transfusions because it contains only a small number of leukocytes. The blood component of PRC-LD has also been shown to prevent or reduce transfusion reactions. Leukodepleted is a procedure to reduce the number of leukocytes in the blood or blood components to be transfused to a minimum of <1x106 leukocytes/unit (European standard) or reduce the number of leukocytes >99%. The purpose of this study was to see the difference in leukocyte values ​​in the PRC and PRC-LD components. The method used is analytic, namely research that aims to determine the relationship between variables within the scope of the laboratory. The method used is a comparative study. This study used 30 samples of PRC products and 30 samples of Leucodepleted PRC products at UTD PMI Surabaya City with 450 cc bags. The study was conducted in October - December 2019. The result was that the leukocyte value in the PRC blood component contained blood quality that did not meet the specifications as many as 30 bags (100%) had leukocyte levels >1x106 per bag. Meanwhile, the blood component of PRC-LD contains blood quality that meets the specifications as many as 30 bags (100%), having leukocyte levels <1x106 per bag. Conclusion The quality of PRC Leukodepleted blood component products, the quality of leukocyte levels that meet the specifications, there are 30 blood bags (100%).
Keywords: Packed Red Cells Leukodepleted
INPLEMENTASI BUSINESS INTELLIGENCE DAN MARKET BASKET ANALYSIS UNTUK ANALISA DATA PENJULAN DI PT. ABC
Authors: Handika I Putu Susila , Satyawati I Gusti Agung Ayu Ari 
Published: January 2022

Ditengah merebaknya kasus pandemi Covid-19 pada tahun 2020 di Indonesia, terjadi perubahan kecenderungan perilaku pelanggan dalam melakukan proses transaksi belanja khususnya pada gerai minimarket. Dengan diberlakukannya pysical distancing, pelanggan dituntut untuk berbelanja seefektif mungkin untuk menghindari penumpukan di dalam gerai. Manajemen perusahaan harus membuat setrategi untuk menyikapi perubahan perilaku dari pelanggan. Pada penelitian ini dikembangkan Business Intelligence dan metode Market Basket Analysis yaitu Apriori untuk menganalisa perilaku pelanggan dengan cara menganalisa riwayat transaksi penjualan. Hasil penelitian menunjukkan dashboard Business Intelligence dapat menampilkan data dalam bentuk grafik dan tabel sehingga memudahkan pengguna dalam proses analisa. Selain itu Association Rule menggunakan metode Apriori menghasilkan nilai support dan confidence sebagai gambaran produk-produk yang saling terkait, sehingga pihak merchendaising dapat dengan mudah membuat keputusan. Hasil pengujian blackbox menunjukkan aplikasi yang dikembangkan dapat diterima oleh pengguna karena semua kebutuhan pengguna dapat diselesaikan oleh aplikasi.
MEDIA PEMBELAJARAN BAHASA IMAI (INDONESIA, MANDARIN, ARAB DAN INGGRIS) BERBASIS MULTIMEDIA
Authors: Samsudin Samsudin , Harahap Aninda Muliani , Hakim Muhammad Rafli 
Published: January 2022

Ilmu pengetahuan teknologi mengalami perkembangan dan kemajuan pesat dalam dunia pendidikan. Salah satunya adalah teknologi dalam media pembelajaran. Pengenalan bahasa pada anak perlu ditingkatkan pada medianya. Tujuan peneliatan ini adalah membangun media pembelajaran interaktif pengenalan bahasa IMAI (Indonesia, Mandarin, Arab, dan Inggris) untuk menambah wawasan siswa dalam mengenal bahasa. Dengan adanya media pembelajaran yang dikemas dengan animasi menggunakan adobe flash juga dapat menarik minat siswa dalam belajar bahasa. Media pembelajaran ini menggunakan model pengembangan MDLC (Multimedia Development Life Cycle) dengan 6 tahapan. Hasil dari penelitian ini adalah media pembelajaran interaktif pengenalan bahasa IMAI (Indonesia, Mandarin, Arab, dan Inggris) tingkat dasar dengan materi yang ditujukan untuk siswa kelas 3 sekolah dasar.
PERENCANAAN ULANG SALURAN DRAINASE JALAN HARAPAN KECAMATAN RUMBAI PESISIR KOTA PEKANBARU
Authors: Jannah Miftahul , Haris Virgo Trisep , Anggraini Muthia 
Published: January 2022

Drainase berfungsi untuk mengalirkan air agar tidak terjadi genangan di permukaan jalan yang dapat mengakibatkan terganggunya aktifitas masyarakat dan rusaknya kontruksi jalan. Di Jalan Harapan Kecamatan Rumbai Pesisir sudah memiliki saluran drainase di bagian kanan dengan tinggi 1,3 m dan lebar 1,3 m, dan saluran kiri dengan tinggi 1,3 m dan lebar 1,1. Namun masih saja sering terjadi genangan air pada permukaan jalan. Kondisi saluran drainase pada jalan harapan mengalami cekungan sehingga menyebabkan tergenangnya air pada daerah tersebut. Tujuan penelitian ini untuk melakukan perencaan ulang guna memperbaiki kondisi saluran drainase yang ada sehingga dapat mengalirkan air. Metode yang digunakan ialah metode Distribusi Gumbel untuk menghitung frekuensi curah hujan, SNI 03-3424-1994 untuk menghitung intensitas curah hujan, dan metode manning untuk menghitung kecepatan aliran. Dari hasil perencanaan didapat dimensi tinggi 1,75 m dan lebar 1,5 m meter dengan elevasi hulu 99,013 dan elevasi hilir 98,8108 untuk saluran kanan dan saluran kiri tinggi 1,45 m dan lebar 1,2 m dengan elevasi hulu 98,429 dan elevasi hilir 98,227 untuk saluran kiri. Kesimpulannya dimensi saluran kanan adalah tinggi 1,75 m dan lebar 1,5 m, pada saluran kiri tinggi 1,45 m dan lebar 1,2m.
PERANCANGAN STRUKTUR ATAS JEMBATAN SUNGAI MESIM MENGGUNAKAN RANGKA BAJA BERDASARKAN SNI 1725:2016
Authors: Rizki Layla Kumala , Puluhulawa Indriyani 
Published: January 2022

Salah satu sungai yang terdapat di Pulau Rupat adalah Sungai Mesim. Jembatan yang melintasi sungai tersebut merupakan jembatan beton bertulang.. Sesuai dengan peraturan Bina Marga untuk rintangan sepanjang 40 - 200 m maka jenis jembatan rangka baja merupakan jenis yang ekonomis. Oleh karena itu didalam penelitian ini penulis melakukan peranaan ulang struktur atas Jembatan Sungai Mesim menggunakan rangka baja. Perencanaan ini bertujuan untuk mendapatkan dimensi struktur atas yang efektif, tahap pelaksanaan dan Rencana Anggaran Biaya. Perencanaan ini mengacu kepada SNI 1725:2016 tentang pembebanan jembatan, RSNI T-03-2005 tentang perencanaan struktur baja untuk jembatan, dan SNI T-12-2004 tentang perencanaan struktur beton. Jembatan ini direncanakan dengan panjang 52 m. Berdasarkan hasil perencanaan diperoleh tebal slab jembatan 200 mm, gelagar memanjang menggunakan IWF 350.175.7.11, gelagar melintang menggunakan IWF 700.300.13.24, rangka utama menggunakan IWF 400.400.13.21 dan ikatan angin menggunakan IWF 150.150.7.10.
Emprego de ferramentas in silico para avaliação da atividade biológica dos compostos presentes em Curcuma longa
Authors: Borges Matheus Araújo , Sarkis Cristiano Mendonça , Barros Gabriel Elias de Lima , Correia Gabrielly de Souza , Borges Leonardo Luiz 
Published: January 2022

Este estudo objetivou apresentar as propriedades químico-biológicas da espécie vegetal Curcuma longa L. e detectar as moléculas com possível atividade biológica de interesse. Um levantamento bibliográfico foi realizado para buscar informações a respeito dos marcadores químicos já identificados para esta espécie. Após identificação dessas estruturas, a codificação das moléculas para realização das predições foi obtida no servidor Pubchem para as análises posteriores. A etapa de triagem de bioatividade para os marcadores químicos foi realizada com os programas SwissADME, Swiss Prediction e PASS prediction. Os estudos de interação intermolecular para as moléculas bioativas que melhor se encaixam no farmacóforo foram elaborados através de modelos de interação intermolecular com a estrutura macromolecular. Tendo em vista o objetivo do trabalho, a bisdemetoxicurcumina foi a substância em que as atividades preditas apresentaram maiores probabilidades. No repositório Binding Database, foram investigados os 5 ligantes com menores valores de IC50 (5 moléculas mais potentes) capazes de inibir a ação da enzima ácido graxo sintase. Posteriormente, a molécula bisdemetoxicurcumina foi incorporada a este conjunto e, a partir de análises de agrupamento farmacofórico empregando o servidor PharmaGist, as 6 estruturas compartilharam 3 características espaciais. Esse resultado corrobora a hipótese de que a bisdemtoxicurcumina exerce atividade biológica sobre a enzima ácido graxo sintase (FASN). As características dos metabólitos ativos da C. longa permitem inúmeras possibilidades de interações biológicas, podendo implicar em distintas aplicabilidades clínicas. Estudos futuros são necessários para melhor elucidar essas aplicações.