bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis de la aceptacion del e-commerce en Ecuador: un estudio para la ciudad de Machala
Authors: Castillo-Castro Alex , Jaramillo-Valarezo Jorge , Bonisoli Lorenzo
Published: September 2021

El e-commerce es un método de compra que ha crecido en todo el mundo. El objetivo de esta investigación es evaluar las razones por las cuales el e-commerce no ha tenido una aceptación completa en la ciudad de Machala. El modelo investigativo aplicado es el modelo de aceptación tecnológica (TAM). El TAM contiene dos variables: la facilidad de uso y la utilidad de uso; adicional a eso se agrega los constructos de la seguridad y la confianza percibidas para proponer un instrumento de investigación adaptado al caso de la ciudad de Machala. Los resultados muestran que las cuatro variables siguen una secuencia en la que la facilidad de uso es el punto de inicio, y la confianza percibida es el termino final. Los resultados llenan vacíos existentes y también brindan sugerencias para futuras investigaciones acerca de la aceptación del e-commerce.
estancamiento de la actividad emprendedora en la informalidad y sus factores de decisión
Authors: Armijos-Arias Jilson , Santiago-Bartolo Paul , Mora-Sánchez Norman , Pacheco-Molina Andres
Published: September 2021

El emprendimiento en Ecuador es considerado como una actividad fundamental para su desarrollo; porque genera empleo, distribuye la riqueza y dinamiza la economía. Sin embargo, pese al crecimiento progresivo emprendedor, aún existen barreras que frenan su inserción dentro de un marco legal, convirtiéndolo en uno de los países con los más altos índices de actividad emprendedora informal de la región. En ese sentido el presente trabajo tiene como objetivo determinar los factores que se asocian a la decisión de formalizar los emprendimientos situados en la informalidad. A fin de ello, se desarrolló la investigación con un diseño transaccional no experimental, con alcance descriptivo y correlacional, para el análisis de las características más relevantes y la evaluación de relación de dependencia entre variables; también se utilizó una muestra aleatoria simple de trescientos y uno emprendedores informales ubicados en el casco central de la ciudad de Machala. Los resultados dan cuenta que, existe un alto porcentaje de adultos de mediana edad y adultos mayores que llevan con sus emprendimientos por décadas en la informalidad, motivados principalmente por la necesidad; la mayoría tienen estudios secundarios o bachilleratos culminados, remuneraciones por debajo del salario básico y no se percibe la flexibilidad ni la independencia económica deseada. Por lo tanto, aunque los emprendedores cuenten con la experiencia y habilidad para el comercio; la decisión de formalizarse y estancarse en la informalidad, están asociados a niveles de ingresos bajos y medios, así como a la ausencia del financiamiento externo
Keseimbangan Kerja dan Kehidupan (Work Life Balanced) Pada Wanita Bekerja
Authors: Rahmayati T.Elfira
Published: September 2021

Peran wanita sebagai pekerja telah memberikan kontribusi yang nyata dalam perkembangan ekonomi  dan sosial. Wanita  memiliki peluang yang sama untuk hadir dalam dunia kerja setara dengan laki-laki. Akan tetapi bagi para wanita khususnya yang telah menikah  hal ini menjadi sebuah tantangan  karena mereka harus melakukan banyak tugas di rumah dan juga kantor. Tekanan kerja yang terus meningkat berdampak pada pekerjaan wanita, dimana wanita meninggalkan lebih sedikit waktu untuk diri mereka sendiri. Dengan demikian, mencapai keseimbangan kehidupan kerja adalah kebutuhan bagi wanita bekerja untuk memiliki kualitas hidup yang baik. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi kasus instrumental tunggal. Karakteristik subjek penelitian ini adalah satu orang wanita karir, yaitu subjek N yang berusia kurang lebih 26  tahun yang berprofesi sebagai Pegawai Negeri Sipil di kota Medan yang bekerja kurang lebih 3 Tahun dan baru memiliki seorang anak dengan usia kurang dari 6 bulan dengan suami yang tinggal di kota berbeda. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah wawancara dan observasi. Berdasarkan hasil penelitian, subjek N  meskipun ada beberapa kesulitan, namun sudah mulai dapat menyeimbangkan antara kehidupan dan pekerjaan yang dilakukan dengan adanya bantuan keluarga. Keberhasilaan subjek N melewati hari-harinya mencapai Work Life Balanced terlihat dari pemenuhan aspek time balance, involvement balance, dan satisfaction balance yang pelan-pelan dapat diatasi. Dalam menuju pencapaian tersebut ada beberapa strategi yang digunakan oleh subjek N terutama strategi Outsourcing dan Techflexing.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI AUDIT DELAY PADA PERUSAHAAN MANUFAKTUR SUBSEKTOR MINYAK DAN GAS BUMI YANG TERDAFTAR DI BURSA EFEK INDONESIA PERIODE 2016-2020
Authors: Hartini Sri
Published: September 2021

Perusahaan yang menerima unqualified opinion dianggap sebagai goodnews (kabar baik) sehingga penyampaian laporan keuangannya lebih cepat.Sebaliknya yang menerima selain unqualified opinion dianggap sebagai bad news (berita buruk), maka perusahaan akan menyampaikan laporan keuangannya ke publik lebih lama karena banyak yang perlu diteliti supaya laporan keuangannya tidak salah saji sehingga. Jika perusahaan menerima unqualified opinion maka audit delay akan semakin pendek dibandingkan perusahaan menerima selain unqualified opinion.Laba menunjukkan good news sehingga perusahaan ingin lebih cepat mengumumkan good news tersebut dan sebaliknya jika perusahaan mengalami kerugian maka pihak manajemen ingin menunda bad news tersebut. Perusahaan yang melaporkan kerugian mungkin akan meminta auditor untuk mengatur waktu auditnya lebih lama dibandingkan biasanya karena hal ini merupakan bad news. Sebaliknya jika perusahaan melaporkan laba yang tinggi maka perusahaan berusaha laporan keuangan auditan di publikasikan secepatnya sehingga goodnews tersebut cepat diketahui oleh para investor dan pihak yang berkepentingan lainnya. Jika perusahaan mengalami laba maka audit delay akan semakin pendek dibandingkan perusahaan yang mengalami kerugian.
Implementasi Metode TOPSIS untuk Sistem Pendukung dalam Menentukan Roster Pemain pada UKM Basket UISU
Authors: Hadianto Yogi , Sulaiman Oris Krianto
Published: September 2021

Roster pemain adalah pemain yang akan dibawa dan dipakai saat pertandingan basket berlangsung, biasanya terdiri dari 5 orang dan 8 orang pemain cadangan. Setiap pemain harus memiliki bakat, keterampilan, maupun motivasi yang sangat dibutuhkan dalam kerjasama tim.Dalam menentukan roster pemain pada UKM Basket UISU, perlu dilakukan analisis mengenai kriteria-kriteria yang dipertimbangkan dalam pemilihan roster pemain. Kriteria- kriteria tersebut harus diolah dengan cara modern yaitu dengan menggunakan sistem yang terkomputerisasi yaitu Sistem Pendukung Keputusan. Metode yang dipilih untuk mendukung pemecahan masalah adalah TOPSIS yaitu dengancara memecah permasalahan kedalam kriteria-kriteria yang telah ditentukan kemudian dikalikan dengan bobot preferensi kriteria, sehingga menghasilkan nilai akhir pada setiap alternatif. Hasil dari system pendukung keputusan ini menunjukkan bahwa dengan penerapan system pendukung keputusan dapat membantu UKM Basket UISU dalam menentukan keputusan yang tepat sesuai dengan pertimbangan dan perhitungan yang benar. Sistem pendukung keputusan ini diharapkan juga dapat memberikan solusi atau penyelesaian terhadap permasalahan yang ada pada UKM yang lain.
Perancangan Aplikasi Layanan Praktikum Online Menggunakan Sistem Indexing Algolia Driver
Authors: Ruchiat Anton , Nasution Khairuddin , Sulaiman Oris Krianto
Published: September 2021

Praktikum adalah subsistem dari perkuliahan yang merupakan kegiatan terstruktur, terjadwal, serta merupakan salah satu kegiatan pendukung dalam proses perkuliahan. Dalam melakukan pengelolaan kegiatan praktikum belum menerapkan sistem komputerisasi sehingga menimbulkan permasalahan seperti keterlambatan pelaksanaan praktikum, seperti jumlah mahasiswa yang mendaftar sebagai peserta praktikum untuk suatu kelas bisa melebihi kapasitas ruang serta administrasi praktikum seperti dokumen presensi peserta praktikum sering terjadi kesalahan pada daftar peserta praktikum yang tertera di dokumen presensi tersebut. Dari permasalahan yang telah disebutkan maka pada penelitian ini akan dilakukan perancangan aplikasi pelayanan praktikum untuk menangani proses layanan praktikum yang diharapkan dapat menyelesaikan permasalahan – permasalahan yang timbul. Perancangan Aplikasi Praktikum ini menggunakan Sistem Indexing Algolia Driver sebagai pencarian Full Text Search dengan memanfaatkan package laravel Scout dalam membantu membuat fitur pencarian dengan mudah tanpa harus menggunakan query pada database, seperti query where, query like dan lainnya.

Setelah perancangan aplikasi layanan praktikum selesai, maka kegiatan layanan praktikum dapat dilaksanakan secara komputerisasi sehingga proses pendaftaran peserta praktikum, jadwal praktikum, daftar presensi praktikum, serta pengelolaan nilai praktikum dapat dikelola dengan baik.

Kata Kunci: Algolia Driver; Laravel Scout; Full Text Search.
Pengembangan SIA Terintegrasi: Pengaturan Pembelian Kredit di PT Toyonaga Indonesia
Authors: Leonika Dealin Mahaputri
Published: September 2021

Abstract-- PT Toyonaga Indonesia is a manufacturing company engaged in the automotive field, the importance of purchasing activities as the main support in the process production and as revenue company , it is very necessary for  system that is mutually integrated computerized between one part and another. PT Toyonaga Indonesia has no system that can integrate between parts to facilitate internal control of the company. This study using method a qualitative research with a descriptive approach, which developing system design using a system development, system structured cycle due to SDLC is a recognized method and is used a lot of system development, steps structured and practical, tools from SDLC using more diagrams so easy to understand, the stages are related to each other. The results show that the system has been running well in PT Toyonaga Indonesia, but the system has not run effectively and efficiently so it is designed with an application system called Entrepreneurial Purchasing System to facilitate the company's business processes, especially in the field of credit purchases.

 

Keywords-- System Information Accounting In Purchase Credit

 

Abstrak--PT Toyonaga Indonesia adalah perusahaan manufaktur yang bergerak dibidang otomotif, karena begitu pentingnya kegiatan pembelian sebagai penunjang utama dalam proses produksi dan perolehan profit perusahaan maka sangat dibutuhkannya sistem yang saling terintegrasi secara komputerisasi antara satu bagian dengan bagian lain. PT Toyonaga Indonesia belum terdapat sistem yang dapat berintegrasi antar bagian untuk memudahkan pengendalian internal perusahaan. Penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan deskriptif yaitu dengan mengembangkan perancangan sistem dengan menggunakan sistem tersturktur System Development Life Cycle karena SDLC merupakan metode yang diakui dan digunakan banyak pengembangan sistem, alur tahapannya terstruktur dan praktis, tools alat-alat dari SDLC menggunakan diagram yang lebih mudah dimengerti, tahapannnya terkait satu sama lainnya. Hasil penelitian menunjukan bahwa sistem yang berjalan pada PT Toyonaga Indonesia sudah berjalan dengan baik, namun sistem belum berjalan secara efektif dan efisien maka dirancang dengan sistem aplikasi dengan nama Purchasing Entris System agar memudahkan proses bisnis perusahaan khususnya dalam bidang pembelian kredit.

 

Kata Kunci--Sistem Informasi Akuntansi Pembelian Kredit
Analisa Algoritma Apriori Untuk Peminjaman Buku Pada Perpustakaan SMA 1 Silima Pungga-Pungga Parongil
Authors: Manurung Oktaviani , Hasugian Penda Sudarto
Published: September 2021

ABSTRACT

The library has the role of helping students to love reading books. The availability of books in various fields motivates students to come to visit the library, students can read or borrow library books. For this reason, library officers apply the rules for visiting the library. The Apriori algorithm is a part of data mining, namely the search for high frequency patterns such as activities that often appear simultaneously. The pattern that will be analyzed is the pattern of borrowing any books that are often borrowed so that librarians know the information of books that are often borrowed. With the application of a priori algorithms, book data is processed to produce a book borrowing pattern. After all the high frequency patterns were found, then association rules were found that met the minimum requirements for associative confidence A → B minimum confidence = 25%. Rules for sequential final association based on minimum support and minimum confidence, if borrowing an IPA, then borrowing MTK Support = 15%, Confidence = 42.8%.

Keywords:Patterns of borrow of books, Library, Apriori Algorithms
Perancangan Sistem Informasi Manajemen Pemberkasan Skripsi Pada Sekolah Tinggi Ekonomi Syariah Islamic Village
Authors: Atmaja Pungky Hari Wira
Published: September 2021

Masalah pada sistem berjalan di STES Islamic Village adalah cara mem-filter pengajuan judul yang masih konvensional, kartu catatan bimbingan skripsi merupakan kontrol tunggal untuk memonitor perkembangan penulisan skripsi mahasiswa, dan peran BAK dalam mengelola berkas hard copy dan soft copy skripsi yang belum maksimal. Untuk memecahkan masalah tersebut, penulis melakukan penelitian yang bertujuan untuk membuat aplikasi yang mampu mempercepat proses duplikasi tema atau judul skripsi, mengelola berkas hard copy dan soft copy skripsi dan monitoring perkembangan skripsi mahasiswa. Hasil perancangan dan pembuatan sistem informasi pemberkasan skripsi pada STES Islamic Village dengan basis web dan menggunakan bahasa PHP serta database MySQL,  aplikasi ini menghadirkan kemudahan user untuk mempercepat proses duplikasi tema atau judul skripsi melalui katalog skripsi mahasiswa. Selain itu, aplikasi yang dikembangkan menjadi satu interface ini juga memberikan manfaat dalam rangka mengelola berkas hard copy dan soft copy skripsi yang dilakukan BAK serta aplikasi ini menggantikan fungsi hard copy kartu bimbingan skripsi yang menjadi kontrol tunggal BAK dalam monitoring perkembangan skripsi mahasiswa.
Analisis Pengaruh Kualitas Website Admin PMB BSI-Group Terhadap Kepuasan Pengguna Menggunakan Metode Webqual 4.0
Authors: Ramadan Rino
Published: September 2021

Kepuasan pengguna merupakan hal terpenting yang menjadi tolak ukurbagi perusahaan. Universitas Bina Sarana Informatika khususnya unit sistem informasidivisi informasi publik ingin meningkatkan kualitas pengelola website PMB-BSIGroup yang sudah ada agar pengguna lebih puas dan banyak melakukan kegiatanpengelolaan data melalui website pmb.bsi.ac.id / pmb-adm, namun selama ini merekabelum mengetahui kekurangan dari website pmb.bsi.ac.id/pmb-adm, sehingga perludilakukan evaluasi untuk mengetahui kualitas website dan tingkat kepuasan pengguna.Penelitian ini dilakukan untuk mengevaluasi hubungan kepuasan pengguna dengandimensi Webqual 4.0. Kualitas website secara keseluruhan pmb.bsi.ac.id/pmb-admberdasarkan nilai R2 (Adjusted R Square) memberikan kontribusi 47,4% terhadapkepuasan pengguna. Kualitas interaksi dan kualitas informasi memberikan kontribusiyang signifikan terhadap kepuasan pengguna sebesar 0,250 dan 0,126 berdasarkantabel koefisien regresi keluaran. Kualitas kegunaan memberikan pengaruh tetapi tidaksignifikan terhadap kepuasan pengguna sebesar 0,041 berdasarkan tabel koefisienregresi keluaran.
Implementasi Metode SAW Terhadap Sistem Pendukung Keputusan Memilih Dosen Terbaik Pada Politeknik Ganesha
Authors: Romindo Romindo
Published: September 2021

The selection of the best lecturers gives recognition to lecturers who carry out tridharma higher education activities, whose results can be proud of and are useful for advancing academic and institutional quality. Educational institutions, especially the Ganesha Medan Polytechnic, annually select the best lecturers by conducting assessments by distributing questionnaires to their students. However, the assessment process is still done manually, so it takes a long time to process the data. In addition, the assessment is still not relevant to the actual situation because it only uses one assessment criterion, namely a student assessment questionnaire. Based on this, in this study, a decision support system design was used to select the best lecturers at the Ganesha Medan Polytechnic. Decision support systems built on a web basis using the PHP programming language and MySQL database. The decision making method used is the Simple Additive Weighting (SAW) method. This method is used to perform the best alternative ranking process from a number of alternatives.
Sistem Pendukung Keputusan Pemilihan Media Pembelajaran Online Menggunakan Metode TOPSIS
Authors: Sari Retno
Published: September 2021

Abstract— Media pembelajaran merupakan sarana komunikasi antara guru dan murid berupa audio visual yang dapat berinteraksi secara langsung tanpa harus bertemu. Media pembelajaran merupakan alat bantu untuk memudahkan proses pembelajaran, terlebih dengan situasi Indonesia yang saat ini sedang melawan virus pandemic covid-19..  Terdapat banyak platform media pembelajaran yang tersedia yang dapat diakses dengan gratis dan mudah untuk mendukung peroses belajar mengajar. Banyaknya media pembelajaran ini memberikan banyak pilihan untuk guru dalam menentukan media pembelajaran apa yang sesuai. Proses pengambilan keputusan yang tepat diperlukan untuk membuat kegiatan belajar mengajar lebih efektif. TOPSIS merupakan metode yang mampu memilih alternative terbaik dari sejumlah alternatif dan dinilai realistis dibandingkan dengan metode lain. Pada penelitian ini terdapat 5 media pembelajara online yang digunakan yaitu, : zoom free , whatsapp group , google classroom , edmodo , google meeting free.  Terdapat 5 kriteria yang masuk proses penilaian yaitu penggunaan data internet, kemudahan akses, kapasistas pengguna, batas waktu akses dan interaksi visual.Dari hasil penelitian diketahui bahwa media pembelajaran yang efektif digunakan yaitu Edmodo dengan hasil 0,838692629.
Pengembangan Aplikasi Desa Pintar Kelurahan Karang Timur Berbasis Android
Authors: Yulianto Agus
Published: September 2021

Abstrak— Kemajuan sebuah kota dapat dilihat dari tersusunnya data kependudukan wilayah tersebut dan meratanya akses terhadap fasilitas dan daya guna yang didapatkan oleh penduduk setempat. Dilandasi pada kenyataan bahwa desa juga menjadi tumpuan pembangunan nasional, dan keberhasilan desa secara akumulatif akan mendorong kelangsungan ekonomi nasional maka posisi desa sungguh sangat penting. Desa perlu dikembangkan secara inovatif menuju Desa Pintar atau SMART VILLAGE. Konsep Smart City yang sedang  populer diterapkan di berbagai daerah di Indonesia tidak bisa serta merta dimodelkan untuk desa dalam bingkai smart village, sebab kondisi dan karakteristik antara desa dan kota relatif berbeda. Mengingat akan hal tersebut dalam memperbaiki kinerja masing-masing Desa agar lebih terkondisikan , solusi melalui pengembangan perangkat digital dapat mempermudah mengakses setiap perkembangan penduduk pada area wilayah setempat. Sistem Informasi Desa Pintar (SEDAPIN) merupakan aplikasi digital yang dapat mengsinkronkan data dan hak akses suatu wilayah berdasarkan data input yang telah diakses oleh penduduknya. SEDAPIN dilengkapi dengan kode unik wilayah yang dapat dijadikan hak akses oleh setiap desa yang berbeda. Aplikasi ini dilengkapi dengan mapping serta keakuratan data terupdate setiap penduduk untuk mengsinkronkan keadaan wilayah sesuai dengan keperluannya
Sistem Informasi Inventory Menggunakan Qr Code Dengan Metode Prototype
Authors: Kusuma Yudha
Published: September 2021

PT RMK Energy terdapat suatu devisi yang menangani monitoring stok yang berpusat pada bagian Inventory akan tetapi dalam melaksanakan suatu sistem masih terdapat kesulitan dalam menjalankan pekerjaan seperti pengeluaran barang yang masih dicatat pada kartu stok sebelum diinput ke dalam sistem dan stok opname yang masih menghitung satu persatu barang dan hasilnya baru diinput kedalam sistem sehingga kurang efisien dalam melakukan pekerjaan yang harus diselesaikan dalam waktu cepat, maka pada aplikasi Sistem Informasi Inventory Menggunakan QR Code meliputi proses input data inventory yang kemudian data tersebut akan digunakan sebagai identitas barang untuk proses pengeluaran dan penerimaan barang serta data tersebut dijadikan sebuah laporan inventory yang akan diberikan kepada pihak manajemen.
Penerapan Metode Prototype Sistem Informasi Peminjaman Ruang Meeting
Authors: Sudradjat Budi
Published: September 2021

Peminjaman ruang meeting yang masih dilakukan secara konvensional mempunyai tingkat akurasi yang sangat minim dan penanganan yang memakan waktu dalam pencarian informasi. Dengan adanya kebutuhan informasi yang tidak terbatas serta didukung oleh teknologi komputer yang semakin canggih maka terciptalah sebuah situs/website. Perkembangan website telah memberikan banyak bantuan kepada perusahaan-perusahaan untuk menunjang kegiatan bisnisnya,  salah satunya dalam kegiatan peminjaman ruangan. Menggunakan sebuah sistem informasi dalam melakukan kegiatan peminjaman ruang, berdampak positif bagi penggunanya. Metode Prototype merupakan suatu metode dalam pengembangan sistem yang menggunakan pendekatan untuk membuat suatu program dengan cepat dan bertahap sehingga segera dapat dievaluasi oleh pemakai.
Pengaruh Penilaian Prestasi Kerja dan Budaya Organisasi Terhadap Kinerja Dosen AMIK Medicom
Authors: Ginting Bena
Published: September 2021

Tugas pokok dosen adalah melaksanakan tri dharma perguruan tinggi, yaitu melaksanakan pendidikan dan pengajaran, penelitian serta pengabdian kepada masyarakat. Kinerja dosen yang berkualitas sangat dibutuhkan oleh organisasi perguruan tinggi khususnya Amik Medicom. Penelitian  ini bertujuan untuk menganalisis besarnya pengaruh  antara penilaian prestasi kerja, budaya organisasi terhadap kinerja dosen. Penelitian ini dilakukan   terhadap dosen tetap dan tidak tetap Yayasan Pendidikan Nasional Medicom. Jenis penelitian kuantiatif. Populasi dalam penelitian     sebanyak 63 orang dan semua dijadikan menjadi sampel. Teknik pengambilan data melalui studi pustaka, kuesioner dan angket. Teknik analisis data menggunakan uji hipotesis  dan koefisien determinasi. Perhitungan menggunakan SPSS for windows versi 17. Hasil uji hipotesis menunjukkan penilaian prestasi kerja dan budaya organisasi secara simultan berpengaruh positif dan signifikan terhadap kinerja dosen dengan nilai uji F adalah 132,970 dengan koefisien determinasi sebesar 80,1%. Disimpulkan bahwa penilaian prestasi kerja  dan budaya organisasi berpengaruh positif dan signifikan terhadap kinerja dosen AMIK Medicom.
Aspiration-Retriever Technique for Stroke with Large Bore Intermediate Catheter : A Single Center Experience
Authors: Nam Ji Won , Jung Na Young , Park Eun Suk , Kwon Soon Chan
Published: September 2021

Objective : Early successful reperfusion is associated with favorable outcomes in acute ischemic stroke (AIS). The purpose of this study was to achieve successful recanalization by a combined mechanical thrombectomy technique, the Aspiration-Retriever Technique for Stroke (ARTS), which is composed of a flexible large lumen distal access catheter and a retrievable stent as the first-line strategy of mechanical thrombectomy.Methods : We retrospectively reviewed 62 patients with AIS who underwent mechanical thrombectomy from 2018 to 2019 at our institute by a senior neurointerventionalist. Among them, patients who were treated using the ARTS technique with the soft torqueable catheter optimized for intracranial access (SOFIA®; MicroVention-Terumo, Tustin, CA, USA) as the first-line treatment were included. Patients who had tandem occlusions or underlying intracranial artery stenosis were excluded. The angiographic and clinical outcomes were evaluated. The angiographic outcome was analyzed by the rate of successful recanalization, defined as a Thrombolysis in Cerebral Infarction score of 2b or 3 at the end of all procedures and the rate of successfully achieving the first pass effect (FPE), defined as complete recanalization with a single pass of the device. The clinical outcomes included the National Institutes of Health Stroke Scale (NIHSS) score, modified Rankin Scale (mRS), and mortality.Results : A total of 27 patients (mean age, 59.3 years) fulfilled the inclusion criteria. The successful recanalization rate was 96% (n=26) while the FPE rate was 41% (n=11). The mean post-procedural NIHSS change was -3.0. Thirteen patients (48%) showed good clinical outcomes after thrombectomy with the ARTS technique (mRS at 90 days ≤2). Postoperative complications occurred in seven of 25 patients : hemorrhagic transformation in six patients (22%) and distal embolization in one patient (4%). Mortality was 15% (n=4).Conclusion : Although the clinical outcomes using the ARTS technique with a flexible large lumen distal access catheter performed as the frontline thrombectomy in patients with AIS were not significantly superior than those of other studies, this study showed a high rate of successful endovascular recanalization which was comparable to that of other studies. Therefore, ARTS using the SOFIA® catheter can be considered as the first choice of treatment for AIS due to large vessel occlusion.
Physiologic Cervical Alignment Change between Cervical Spine X-ray and Computed Tomography
Authors: Lee Ho Jin , Kim Il Sup , Hong Jae Taek
Published: September 2021

Objective : The purpose of this study was to investigate the correlations among various radiological parameters used to determine cervical alignment from cervical spine radiographs (X-CS) and cervical spine computed tomography (CT-CS), both within and between modalities.Methods : This study included 168 patients (≤60 years old) without a definite whole spine deformity who underwent CT-CS and X-CS. We measured occipital slope (O-s), C1 slope, C2 slope, C7 slope, sella turcica - C7 sagittal vertical axis (StC7-SVA), spinocranial angle, T1 slope, and C27-SVA. We calculated the O-C2 angle, O-C7 angle, and C2-7 angle from the measured parameters and conducted correlation analyses among multiple parameters.Results : The intrinsic correlation features among multiple cervical parameters were very similar for both X-CS and CT-CS. The two SVA parameters (C27-SVA and StC7-SVA) were mainly influenced by the upper cervical slope parameters (r=|0.13–0.74|) rather than the lower slope cervical parameters (r=|0.08–0.13|). The correlation between X-CS and CT-CS for each radiological parameter was statistically significant (r=0.26–0.44) except for O-s (r=0.10) and StC7-SVA (r=0.11).Conclusion : The correlation patterns within X-CS and CT-CS were very similar in this study. The correlation between X-ray and CT was statistically significant for most radiological parameters, and the correlation score increased when the horizontal gaze was consistently maintained. The lower cervical parameters were not statistically associated with translation-related parameters (C2-7 SVA and StC7-SVA). Therefore, the upper cervical segment may be a better predictor for determining head and neck translation.
Lay Explanation of Poverty During the Pandemic in Hungary
Authors: Nandori Eszter Siposne
Published: September 2021

The paper analyzes perceived causes of poverty in Borsod-Abaúj-Zemplén County, Hungary, one of the most disadvantaged areas of the country. Data collection was carried out in the second half of 2020 using consensus theory and the methods of systematic data collection. The aim of the research is to discover whether support for explanations which blame structural conditions is dominant in the public perception of poverty during the pandemic. From the research discussed it is clear that structural conditions are not dominant and that the poor are often seen as being themselves responsible for their unfavourable situation. The COVID-19 pandemic is not associated with a high support for the social type of lay explanations.
Resistin levels in perivascular adipose tissue and mid-term mortality in patients undergoing coronary artery bypass granting
Authors: Rachwalik Maciej , Obremska Marta , Zyśko Dorota , Matusiewicz Małgorzata , Protasiewicz Marcin , Jasiński Marek
Published: September 2021

Higher serum resistin levels were reported to be associated with increased mortality risk. We aimed to assess the predictive value of resistin levels in perivascular adipose tissue (PVAT) around the left main coronary artery (LMCA) for mid-term survival of patients with advanced coronary artery disease (CAD). This was a prospective study including patients referred for elective coronary artery grafting in 2016 and 2017, performed using a standard approach. A sample of PVAT was harvested and resistin levels were measured using an enzyme-linked immunosorbent assay. Patients were followed from the day of the procedure until March 2021. In each patient, the SYNTAX score and EuroSCORE II were calculated. The study included 108 patients aged 68.1 ±7.9 years, including 83 men (76.9 %). The duration of follow-up was 731 (range, 275-1020) for nonsurvivors and 1418 median (range, 1174-1559) for survivors (p <0.001). Patients who died had a higher SYNTAX score, higher EuroSCORE II, and lower resistin levels in PVAT than survivors (p <0.001, p=0.004, and p=0.041, respectively). A stepwise regression analysis revealed that survival was related to resistin concentrations above the median value (hazard ratio [HR], 4.67, 95 % CI, 1.02-21.4, p=0.048) and EuroSCORE II (used as continuous variable, HR, 1.55, 95 % CI, 1.16-2.07, p=0.003). The mid-term mortality in patients with advanced CAD is associated with low resistin concentrations in PVAT surrounding the LMCA.
Alternations in the cardiovascular autonomic regulation and growth factors in autism
Authors: Tonhajzerova Ingrid , Ondrejka Igor , Ferencova Nikola , Bujnakova Iveta , Grendar Marian , Bona Olexova Lucia , Hrtanek Igor , Visnovcova Zuzana
Published: September 2021

Autism spectrum disorder (ASD) represents a serious neurodevelopmental disorder associated with autonomic nervous system dysregulation. The aim was to study complex cardiovascular autonomic regulation using heart rate variability (HRV) and systolic blood pressure variability (SBPV) linear/non-linear analysis at rest and during orthostasis, and to assess plasma levels of epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF) in autistic children. Twenty-five ASD boys and 25 age and gender-matched children at the age 7 15 years were examined. After venous blood taking, continuous ECG and blood pressure biosignals were recorded at rest and during orthostasis. Evaluated parameters: RR intervals, high- and low-frequency band of HRV spectral analysis (HF-HRV, LF-HRV), symbolic dynamics parameters 0V %, 1V %, 2LV %, 2UV %, low- and high-frequency band of SBPV (LF-SBPV, HF-SBPV), systolic, diastolic, mean blood pressure, EGF, VEGF plasma levels. RR intervals were significantly shortened and the HF-HRV, LF-SBPV, HF-SBPV parameters were significantly lower at rest, the HF-HRV and LF-SBPV remained lower during orthostasis in autistic children compared to controls (p0.05). EGF plasma levels were significantly lower in ASD compared to controls (p=0.046). No significant differences were found in remaining parameters. Our study revealed tachycardia, cardiovagal underactivity, and blunted sympathetic vasomotor regulation at rest and during orthostasis in autistic children. Additionally, complex heart rate dynamics are similar in autistic children than controls. Furthermore, EGF was reduced in autistic children without significant correlations with any autonomic parameters. We suggest that the abnormal complex cardiovascular reflex control could contribute to understanding the pathway linking autonomic features and autism.
Researching Digital Sociality: Using WhatsApp to Study Educational Change
Authors: Zayed Hany
Published: September 2021

Digital technologies have become deeply implicated in and constitutive of contemporary social life. They are reshaping who we are and how we associate with one another, and are profoundly reconfiguring social relations, processes, and practices in a host of social spheres, particularly education. With Covid-19 further entrenching this implication and accelerating those changes, we are forced to rethink what research is and how it is done. This article presents a step towards researching a changing sociality using social media. Drawing on fieldwork on the digital transformation of Egyptian education, it argues that and showcases how WhatsApp can be systematically used as a qualitative data collection instrument to examine educational change. This article also situates WhatsApp research within digital ethnographic traditions, unpacks emergent methodological challenges and ethical quandaries, and presents potential ways to manage them. In so doing, it problematizes extant methodological categories (such as participation), entrenched dichotomies (such as private/public space), and epistemological questions (such as research temporality). Using a unique case from the Global South at an exceptional time of (educational) change, this article can help researchers as they think about their questions, design their research, conduct their fieldwork, and maneuver an elusive digital landscape. It informs broader methodological discussions within digital sociology and anthropology (of education), digital ethnography, and social media research. It also informs research in other domains like healthcare, geographies beyond the Global South, and platforms with similar affordances like Telegram.
Cognitive Impairment After Intracerebral Hemorrhage: A Systematic Review of Current Evidence and Knowledge Gaps
Authors: Potter Thomas , Lioutas Vasileios-Arsenios , Tano Mauricio , Pan Alan , Meeks Jennifer , Woo Daniel , Seshadri Sudha , Selim Magdy , Vahidy Farhaan
Published: September 2021

Background: Cognitive impairment (CI) is commonly observed after intracerebral hemorrhage (ICH). While a growing number of studies have explored this association, several evidence gaps persist. This review seeks to investigate the relationship between CI and ICH.

Methods: A two-stage systematic review of research articles, clinical trials, and case series was performed. Initial search used the keywords [“Intracerebral hemorrhage” OR “ICH”] AND [“Cognitive Impairment” OR “Dementia OR “Cognitive Decline”] within the PubMed (last accessed November 3rd, 2020) and ScienceDirect (last accessed October 27th, 2020) databases, without publication date limits. Articles that addressed CI and spontaneous ICH were accepted if CI was assessed after ICH. Articles were rejected if they did not independently address an adult human population or spontaneous ICH, didn't link CI to ICH, were an unrelated document type, or were not written in English. A secondary snowball literature search was performed using reviews identified by the initial search. The Agency for Healthcare research and Quality's assessment tool was used to evaluate bias within studies. Rates of CI and contributory factors were investigated.

Results: Search yielded 32 articles that collectively included 22,631 patients. Present evidence indicates a high rate of post-ICH CI (65–84%) in the acute phase (<4 weeks) which is relatively lower at 3 (17.3–40.2%) and 6 months (19–63.3%). Longer term follow-up (≥1 year) demonstrates a gradual increase in CI. Advanced age, female sex, and prior stroke were associated with higher rates of CI. Associations between post-ICH CI and cerebral microbleeds, superficial siderosis, and ICH volume also exist. Pre-ICH cognitive assessment was missing in 28% of included studies. The Mini Mental State Evaluation (44%) and Montreal Cognitive Assessment (16%) were the most common cognitive assessments, albeit with variable thresholds and definitions. Studies rarely (<10%) addressed racial and ethnic disparities.

Discussion: Current findings suggest a dynamic course of post-ICH cognitive impairment that may depend on genetic, sociodemographic and clinical factors. Methodological heterogeneity prevented meta-analysis, limiting results. There is a need for the methodologies and time points of post-ICH cognitive assessments to be harmonized across diverse clinical and demographic populations.
Autophagy Is Required for Strawberry Fruit Ripening
Authors: Sánchez-Sevilla José F. , Botella Miguel A. , Valpuesta Victoriano , Sanchez-Vera Victoria
Published: September 2021

Autophagy is a catabolic and recycling pathway that maintains cellular homeostasis under normal growth and stress conditions. Two major types of autophagy, microautophagy and macroautophagy, have been described in plants. During macroautophagy, cellular content is engulfed by a double-membrane vesicle called autophagosome. This vesicle fuses its outer membrane with the tonoplast and releases the content into the vacuole for degradation. During certain developmental processes, autophagy is enhanced by induction of several autophagy-related genes (ATG genes). Autophagy in crop development has been studied in relation to leaf senescence, seed and reproductive development, and vascular formation. However, its role in fruit ripening has only been partially addressed. Strawberry is an important berry crop, representative of non-climacteric fruit. We have analyzed the occurrence of autophagy in developing and ripening fruits of the cultivated strawberry. Our data show that most ATG genes are conserved in the genome of the cultivated strawberry Fragaria x ananassa and they are differentially expressed along the ripening of the fruit receptacle. ATG8-lipidation analysis proves the presence of two autophagic waves during ripening. In addition, we have confirmed the presence of autophagy at the cellular level by the identification of autophagy-related structures at different stages of the strawberry ripening. Finally, we show that blocking autophagy either biochemically or genetically dramatically affects strawberry growth and ripening. Our data support that autophagy is an active and essential process with different implications during strawberry fruit ripening.
Evaluation of Computational Models for Electron Transpiration Cooling
Authors: Campbell Nicholas S. , Hanquist Kyle , Morin Andrew , Meyers Jason , Boyd Iain
Published: September 2021

Recent developments in the world of hypersonic flight have brought increased attention to the thermal response of materials exposed to high-enthalpy gases. One promising concept is electron transpiration cooling (ETC) that provides the prospect of a passive heat removal mechanism, rivaling and possibly outperforming that of radiative cooling. In this work, non-equilibrium CFD simulations are performed to evaluate the possible roles of this cooling mode under high-enthalpy conditions obtainable in plasma torch ground-test facilities capable of long flow times. The work focuses on the test case of argon gas being heated to achieve enthalpies equivalent to post-shock conditions experienced by a vehicle flying through the atmosphere at hypersonic speed. Simulations are performed at a range of conditions and are used to calibrate direct comparisons between torch operating conditions and resulting flow properties. These comparisons highlight important modeling considerations for simulating long-duration, hot chamber tests. Simulation results correspond well with the experimental measurements of gas temperature, material surface temperature as well as measured current generated in the test article. Theoretical methods taking into consideration space charge limitations are presented and applied to provide design suggestions to boost the ETC effect in future experiments.
Training Systems and Sustainable Orchard Management for European Pear (Pyrus communis L.) in the Mediterranean Area: A Review
Authors: Musacchi Stefano , Iglesias Ignasi , Neri Davide
Published: September 2021

In 2018, 23.2 Mt of pears were produced in the world across 1.3 million hectares (ha) of cultivated land. This review analyzes different training systems and management styles that have been adopted worldwide, emphasizing the European pear’s economic and environmental sustainability for the Mediterranean area of cultivation. Despite a reduced number of cultivars utilized around the world, pear presents a plethora of innovative training systems. In Europe, dwarfing rootstocks have led to reduced planting distances and a subsequent increase in planting density. Still, the economic sustainability of these systems is now questionable. Many of the quince rootstocks have made it possible to considerably reduce the size of the tree and introduce the concept of continuous row planting, with the management of orchards from the ground (i.e., pedestrian orchard). The planting distance must be chosen according to the soil fertility, the vigor of the grafting combination, and the training system. The planting distance dramatically affects the pruning and the management of soil, fertilization, and irrigation. The reduction of tree size also lowers the volume of spray necessary when applying pesticides. The variability in yield worldwide results from the interaction amongst cultivar/rootstock/training system/climate/management.
High-Throughput Phenotyping of Leaf Discs Infected with Grapevine Downy Mildew Using Shallow Convolutional Neural Networks
Authors: Zendler Daniel , Malagol Nagarjun , Schwandner Anna , Töpfer Reinhard , Hausmann Ludger , Zyprian Eva
Published: September 2021

Objective and standardized recording of disease severity in mapping crosses and breeding lines is a crucial step in characterizing resistance traits utilized in breeding programs and to conduct QTL or GWAS studies. Here we report a system for automated high-throughput scoring of disease severity on inoculated leaf discs. As proof of concept, we used leaf discs inoculated with Plasmopara viticola ((Berk. and Curt.) Berl. and de Toni) causing grapevine downy mildew (DM). This oomycete is one of the major grapevine pathogens and has the potential to reduce grape yield dramatically if environmental conditions are favorable. Breeding of DM resistant grapevine cultivars is an approach for a novel and more sustainable viticulture. This involves the evaluation of several thousand inoculated leaf discs from mapping crosses and breeding lines every year. Therefore, we trained a shallow convolutional neural-network (SCNN) for efficient detection of leaf disc segments showing P. viticola sporangiophores. We could illustrate a high and significant correlation with manually scored disease severity used as ground truth data for evaluation of the SCNN performance. Combined with an automated imaging system, this leaf disc-scoring pipeline has the potential to considerably reduce the amount of time during leaf disc phenotyping. The pipeline with all necessary documentation for adaptation to other pathogens is freely available.
Impact of Urbanization and Sunlight Exposure on Cataract Incidence
Authors: Yu Wan-Syuan , Wang Chia-Hui , Kuo Nai-Wen
Published: September 2021

The impact of urbanization on cataract incidence is still inconclusive. This study aimed to examine the association of urbanization and sunlight exposure with cataract incidence using a nationwide population-based database in Taiwan. The researchers used data retrieved from the Taiwan Longitudinal Health Insurance Database from 2001 to 2010 (LHID2010). The LHID2010 consists of medical claims data for reimbursement for 1 million individuals randomly selected from all enrollees (N = 23.25 million) in the Taiwan National Health Insurance (NHI) program in 2010. For adults aged over 40, we identified a total of 3080 people diagnosed with senile cataracts (ICD-9:360) and 393,241 people without senile cataracts in the LHID2010. In addition, sunlight exposure data between 2001 and 2011 were obtained from 28 meteorological stations of the Taiwan Central Weather Bureau. Logistic regression was performed to test the hypothesis. When controlled for the confounding factors, such as demographic factors, comorbidities, and sunlight exposure, the logistic regression results showed that those living in highly urbanized areas are more likely to suffer from senile cataracts (p < 0.001).
Multiple Optimizations-Based ESRFBN Super-Resolution Network Algorithm for MR Images
Authors: Liu Huanyu , Shao Mingmei , Pan Jeng-Shyang , Li Junbao
Published: September 2021

Magnetic resonance (MR) images can detect small pathological tissue with the size of 3–5 image pixels at an early stage, which is of great significance in the localization of pathological lesions and the diagnosis of disease. High-resolution MR images can provide clearer structural details and help doctors to analyze and diagnose the disease correctly. In this paper, MR super-resolution based on the multiple optimizations-based Enhanced Super Resolution Feed Back Network (ESRFBN) is proposed. The method realizes network optimization from the three perspectives of network structure, data characteristics and heterogeneous network integration. Firstly, a super-resolution network structure based on multi-slice input optimization is proposed to make full use of the structural similarity between samples. Secondly, aiming at the problem that the L1 or L2 loss function is based on a per-pixel comparison of differences, without considering human visual perception, the optimization method of multiple loss function cascade is proposed, which combines the L1 loss function to retain the color and brightness characteristics and the MS-SSIM loss function to retain the contrast characteristics of the high-frequency region better, so that the depth model has better characterization performance; thirdly, in view of the problem that large deep learning networks are difficult to balance model complexity and training difficulty, a heterogeneous network fusion method is proposed. For multiple independent deep super-resolution networks, the output of a single network is integrated through an additional fusion layer, which broadens the width of the network, and can effectively improve the mapping and characterization capabilities of high- and low-resolution features. The experimental results on two super-resolution scales and on MR images datasets of four human body parts show that the proposed large-sample space learning super-resolution method effectively improves the super-resolution performance.
New Training Tasks for Stepwise Loading in Isometric Bodyweight Squat with Active Posture Control
Authors: Kitamura Tetsuro , Ishida Yukako , Tsukamoto Shinji , Akahane Manabu , Mano Tomoo , Kobayashi Yasuyo , Tanaka Yasuhito , Kido Akira
Published: September 2021

Isometric bodyweight squats are fundamental exercises in athletic training and rehabilitation. Previously, we measured muscle activity in a normal squat posture (NSP) and a squat posture with the center of foot pressure (COP) intentionally shifted forward as far as possible (forward-shifted posture: FSP), and the muscle activity patterns varied significantly according to the COP location. This study focused on stepwise loading as a training strategy. Ten healthy male participants performed isometric bodyweight squats in a previous study, adopting the NSP and FSP, with three knee flexion angles (30°, 60°, and 90°). The muscle activities of the vastus medialis (VM), semitendinosus, tibialis anterior (TA), and gastrocnemius muscle lateral head were measured using surface electromyogram. This study further explored the relationship between COP shifting and knee flexion angles on electromyogram changes using three-dimensional diagrams. In one-way repeated measures analysis of variance by ranks, knee flexion angles affected the muscle activities of the VM and TA in the NSP and muscle activities of the VM in the FSP. Combining these findings, stepwise loading tasks were created to train individual target muscles. The ten male participants examined all the tasks, and the feasibility was confirmed accordingly.