bluuebunny/crossref_metadata_2025 huggingface dataset:
MİLLETLERARASI USÛL HUKUKU ÇERÇEVESİNDE ACENTENİN YABANCI MÜVEKKİLİNİ DAVADA TEMSİL YETKİSİ
Authors: ÖZGENÇ Zeynep
Published: March 2022

Acente, müvekkili nam ve hesabına sürekli olarak sözleşmeler akdeden ya da bu sözleşmelere aracılık hizmeti sunan bağımsız tacir yardımcısıdır. Süreklilik ve meslek edinme gayesi sebebiyle acente ile temsil ettiği müvekkil arasında özel bir ticarî ilişki doğmaktadır. TTK madde 105/II’de düzenlenen davada temsil yetkisi bu özel ilişkinin bir sonucudur. İlgili hüküm uyarınca, aracılıkta bulunduğu veya yaptığı sözleşmelerden doğacak uyuşmazlıklardan dolayı acente, müvekkili adına dava açabileceği gibi, kendisine karşı da aynı sıfatla dava açılabilir. Ayrıca yabancı tacirler adına acentelik yapanlar hakkındaki sözleşmelerde yer alan bu kurala aykırı şartların geçersiz olacağı hükme bağlanmaktadır. TTK madde 105/III ile de acentelerin ad ve hesabına hareket ettikleri kişilere karşı Türkiye’de açılacak olan davalar sonucunda alınan kararların acentelere karşı uygulanamayacağı düzenlenmektedir. Müvekkilin yabancı olması hâlinde acentenin davada temsil yetkisi ile ilgili bazı hususların değerlendirilmesi çalışmamızın konusunu oluşturmaktadır.
Sınıf İçi Öğretimin Planlanması, Uygulanması ve Yönetimine İlişkin Metabilişsel Farkındalıklar Ölçeğinin (PUY-MFÖ) Geliştirilmesi: Geçerlik ve Güvenirlik Çalışması
Authors: SOYSAL Yilmaz , RADMARD Somayyeh , KUTLUCA Ali Yiğit
Published: March 2022

Bu çalışmanın amacı sınıf içi öğretimsel faaliyetlerin boyutları (planlama, uygulama ve yönetim) ile metabilişsel (üstbilişsel) aktivite olgusunun boyutlarını (bilgi, tecrübe ve beceriler) ölçümleyebilen bir aracın geliştirilmesidir. Geliştirilen ölçüm aracıyla öğretmenlerin gözünden kendi sınıf içi öğretim faaliyetlerine yansıtma yapabilmelerinin belirlenebilmesi amaçlanmıştır. Ölçeğin psikometrik özelliklerinin belirlenebilmesi için farklı sınıf düzeyi ve branşlarda görev yapan 356 öğretmene ölçek uygulanmıştır. Geçerlik çalışmaları için açıklayıcı ve doğrulayıcı faktör analizleri gerçekleştirilmiştir. Analizler sonucunda ölçeğin nihai formunda yer alan 34 maddenin kurulan teorik modelle uyumlu olduğu görülmüştür. Ölçeğin iki faktörlü/boyutlu olduğu ortaya çıkmıştır: “öğretimi planlama, izleme, değerlendirme” ve “epistemik ve organizasyonel otoritenin izlenmesi”. Her iki faktörün metabilişsel bilgi ve metabilişsel beceri boyutları ile uyumlu olduğu tespit edilmiştir. Ölçeğin olası kullanım alanları özellikle öğretmen farkındalığı ve mesleki gelişim olguları çerçevesinde tartışılmıştır.
Klasifikasi Jenis Jamur Menggunakan SVM dengan Fitur HSV dan HOG
Authors: Yohannes Yohannes , Udjulawa Daniel , Ivan Sariyo Timoteus
Published: March 2022

Mushrooms are one of the plants that have so many varieties. Every variety has a different shape and color. But most people still feel difficult to know and classify every mushroom. Therefore, classification for mushroom is needed. Method for this research are Hue Saturation Value (HSV) as color segmentation, then Histogram of Oriented Gradient (HOG) as feature extraction, and Support Vector Machine (SVM) as a classification method. Mushrooms that being use are Agaricus, Amanita, Boletus, Cortinarius, Entoloma, Hygrocybe, Lactarius, Russula, Suillus. Total of mushrooms for this research are 900, with 100 each genus. This research using the k-fold Cross Validation method for 4-fold. From 900 images there are 675 for the training phase and 225 for the testing phase. Overall for this research got precision, recall, accuracy respectively 23.80%, 22.94%, and 82.69%. The best mushroom was Boletus with precision, recall, accuracy respectively 55.37%, 46.84%, and 89.69%.
Sistem Pendukung Keputusan Untuk Pemilihan Vendor Berdasarkan Evaluasi Kinerja Menggunakan Metode Naïve Bayes (Studi Kasus: PT. PLN (Persero) Unit Pelaksana Pembangkitan Bukittinggi)
Authors: Ummah Kuntum Khaira , Kusuma Dine Tiara , Yosrita Efy
Published: March 2022

Dalam proses pengadaan barang dan jasa, pemilihan vendor yang tepat akan membantu kelancaran pelaksanaan proyek. Pemilihan vendor yang dilakukan tanpa pertimbangan tertentu, seringkali menimbulkan kerugian bagi PT. PLN (Persero) Unit Pembangkitan Pelaksana Bukittinggi dari segi kualitas, biaya, dan waktu diakibatkan tidak profesionalnya vendor tersebut. Untuk memecahkan masalah tersebut maka dibutuhkan metode Naive Bayes sebagai sistem pendukung keputusan untuk pemilihan vendor proyek. Naive Bayes merupakan metode pengklasifikasian ada ciri tertentu dari sebuah kelas. Enam atribut pemilihan vendor proyek yaitu waktu, komunikasi, kelengkapan data, lingkungan & K3, harga dan mutu. Dari hasil perangkingan menggunakan metode Naive Bayes peringkat pertama diduduki oleh PT. Valvindo Mandiri dengan nilai 0.096799. Dengan menggunakan data sebanyak 150 yang terdiri dari variabel A, B, C, D, dan E. Hasil dari klasifikasi menggunakan metode Naive Bayes menghasilkan akurasi 86.67%, presisi 88.89% dan recall 88.89%.
Optimasi Sumber Daya Pada Usaha Berskala Kecil Di Tengah Masa Pandemi Menggunakan Metode Simpleks
Authors: Rumetna Matheus Supriyanto , Lina Tirsa Ninia , Burdam Paulus , Yulanda Jeance , Saputro Danu , Bahari Wahyu Putra , Sianturi Aprinando , Riupassa Richard , Dautot Nomensen , Leky Yuan , Sahetapy Greito , Indri Indri , Tobelo Brian Ackly
Published: March 2022

As developments in the industrial sector move forward, there is more and more competition, but now there is one major barrier, namely the Covid-19 pandemic. This pandemic has forced the government to implement Large-Scale Social Restrictions and the Enforcement of Restrictions on Community Activities. This has a negative impact on one of the small-scale businesses, namely Ibu Olan's home-based business because there is a decline in people's purchasing power which has an impact on the profit of Ibu Olan's business which is also reduced. This problem experienced by Ibu Olan has become a dynamic that is also felt by other small-scale businesses. In order for this business to continue to survive in the midst of the Covid-19 pandemic storm, it can use one of the methods contained in the Linear Program, namely the Simplex method. The main objective of this research is to help small-scale businesses in terms of resource optimization. As a result, Ibu Olan's home-based business earns a profit of IDR 90,000,- per day from the sales of Sampoerna and Surya cigarettes. These results are used as a reference or benchmark for small businesses in terms of making decisions for business development and the main guarantee is that this method provides the best solution for problem solving.
Model Analisis Kasus Covid-19 Di Indonesia Menggunakan Algoritma Regresi Linier Dan Random Forest
Authors: Hidayanti Alma , Siregar Amril Mutoi , Lestari Santi Arum Puspita , Cahyana Yana Cahyana
Published: March 2022

Kenaikan kasus covid-19 di Indonesia tidak bisa diperkirakan perkembangannya, sehingga menyebabkan buruknya berbagai aspek kehidupan di Indonesia. Analisis data sangat penting untuk dilakukan, dengan menganalisis maka akan dihasilkan informasi baru yang bisa digunakan untuk menunjang penelitian lebih dalam terhadap permasalahan yang sama. Penelitian ini bertujuan untuk menganalisis data covid-19 di Indonesia dengan cara  mengetahui nilai akurasi yang diperoleh dalam data. Dalam penelitian ini metode yang digunakan yaitu metode regresi linier dan random forest. Hasil penelitian dapat diketahui bahwa dalam penelitian ini cara analisis yang dilakukan yaitu menggunakan perhitungan manual dengan tools microsoft excel, pemrograman bahasa python menggunakan tools google colaboratory dan perangkat lunak pengolahan data menggunakan tools rapidminer. Nilai akurasi dalam setiap metode dapat berbeda sesuai dengan tools yang digunakan. Pada metode regresi linier nilai akurasi tertinggi adalah 99,7% dengan nilai RMSE (root mean squared error) yaitu 26,19, data tersebut dianalisis menggunakan perhitungan manual dengan tools microsoft excel. Sedangkan untuk metode random forest nilai akurasi tertinggi adalah 98,4% dan dianalisis menggunakan tools rapidminer
Sistem Pengenalan Karakter Dokumen Secara Otomatis Menggunakan Metode Optical Character Recognition
Authors: Nurhaliza Susan Siti , ETP Lussiana
Published: March 2022

Merebaknya pandemi covid-19 memberikan dampak ke segala bidang kehidupan, termasuk kegiatan ekspor impor, khususnya impor barang yang berkaitan dengan alat kesehatan. Peningkatan impor yang signifikan menyebabkan aktifitas pemeriksaan dokumen terkait dengan customs clearance semakin meningkat tajam. Kondisi ini mempengaruhi kinerja petugas dalam hal ketelitian dan kekuatan jasmani, yang saat ini masih dilakukan secara manual yaitu pembacaan naskah secara langsung. Dengan demikian sangat rentan terhadap terjadinya kesalahan baca dan entry data saat pemeriksaan. Akibatnya harus dilakukan pemeriksaan ulang dan banyaknya complain dari penerima barang. Penelitian ini bertujuan menerapkan metode Optical Character Recognition (OCR) untuk mengenali karakter dokumen ijin distribusi alat kesehatan. Berbagai tahap penelitian yang digunakan antara lain: preprocessing yang terdiri dari proses grayscaling, binerisasi, cropping kemudian dilanjutkan dengan proses  segmentasi, ekstraksi fitur dan untuk proses terakhir adalah proses  metode template matching yang merupakan suatu metode yang banyak digunakan untuk mengenali  suatu karakter. Hasil uji coba 5 citra dokumen menunjukkan tingkat akurasi pengenalan karakter sebesar 98.78% dan waktu proses rata-rata 1.29 detik Dengan demikian dapat disimpulkan bahwa metode OCR dapat di terapkan untuk mengenali suatu karakater pada dokumen izin distribusi alat kesehatan.
DIGITALISASI PELAYANAN ADMINISTRASI SURAT PADA DESA BANDARSARI
Authors: Nurkholis Andi , Jupriyadi Jupriyadi , Budiman Arief , Pasha Donaya , Ahdan Syaiful , Andika Rio , Amalia Zahrina
Published: March 2022

Pelayanan administrasi surat di Desa Bandarsari, Kabupaten Lampung Tengah masih menggunakan cara konvensional atau manual sehingga masih kurang efektif dan efisien. Masyarakat sering mengalami kesulitan ketika melakukan pengajuan surat yang terbatas oleh ruang dan waktu, seperti halnya masyarakat diperlukan untuk ke balai desa serta hanya dapat diajukan ketika jam kerja. Selain itu, arsip administrasi surat yang banyak memerlukan kapasitas penyimpanan yang juga besar, serta rawan terhadap kerusakan berkas secara fisik. Pengabdian ini bertujuan menerapkan digitalisasi pelayanan administrasi surat berbasis web untuk memudahkan masyarakat dalam pengajuan surat di Desa Bandarsari. Selain itu, dilakukan juga pendampingan penggunaan sistem kepada staf desa dengan kegiatan pelatihan yang mencakup pemaparan dan praktik fungsionalitas sistem. Pengembangan sistem dilakukan menggunakan framework Laravel yang berbasis bahasa pemrograman PHP yang dikombinasikan dengan HTML sebagai antarmuka, serta MySQL sebagai database. Sebagai penilaian kelayakan, sistem diuji menggunakan ISO 25010 yang mencakup 5 karakteristik utama dari ISO 25010, yaitu Functional Suitability, Reliability, Performance Efficiency, Usability, dan Portability. Berdasarkan perhitugan yang dilakukan menggunakan Skala Likert memperoleh hasil 84.91%, sehingga dapat disimpulkan bahwa sistem dinyatakan baik untuk digunakan dan layak untuk diterapkan.
PENINGKATAN PRODUKTIVITAS UMKM MELALUI PELATIHAN MERK PRODUK DAN PENYUSUNAN LAPORAN KEUANGAN DI PEKON PANGGUNGREJO, KABUPATEN PRINGSEWU
Authors: Ahluwalia Larasati , Nani Dhiona Ayu , Sari Tri Darma Rosmala
Published: March 2022

Perubahan teknologi dan ilmu pengetahuan yang cepat telah berdampak besar bagi daya saing perusahaan lokal (Nani & Safitri, 2021), tanpa terkecuali bagi Usaha Mikro Kecil Menengah (UMKM). UMKM menjadi salah satu penopang perekomian nasional pada masa krisis harus mampu mengikuti perkembangan teknologi dan ilmu pengetahuan. Pengetahuan terkait pelatihan merek produk dan penyusunan laporan keuangan diperlukan UMKM agar memudahkan dalam pemasaran dan pendanaan yang lebih luas. Program pengabdian kepada masyarakat ini dilaksanakan untuk memberikan pengetahuan dan pemahaman terkait penyusunan laporan keuangan dan pembangunan merek produk (product branding) pada UMKM Desa Panggungrejo, Kabupaten Pringsewu. Melalui pelatihan ini UMKM dapat menerapkan penyusunan laporan keuangan sesuai dengan standar UMKM dan membangun merek produk, sehingga memudahkan pengajuan pendanaan melalui kredit perbankan, maupun meningkatkan loyalitas konsumennya.
OEMAH MATEMATIKA: PENDAMPINGAN PEMBELAJARAN MATEMATIKA BERBASIS ETNOMATEMATIKA UNTUK ANAK-ANAK DI KELURAHAN YOSOREJO
Authors: Mustika Juitaning
Published: March 2022

Matematika masih menjadi momok yang menakutkan bagi siswa. Pembelajaran matematika seolah terpisah dari kehidupan sehari-hari siswa. Di masa pandemi covid-19, pembelajaran matematika melalui kelas online atau hanya menggunakan platform pembelajaran tertentu, sehingga banyak siswa yang mengeluhkan sulitnya pembelajaran matematika. Siswa semakin kesulitan untuk memahami konsep matematika apalagi mengintegrasikan pemaknaan matematika yang dekat dengan lingkungan sekitarnya. Untuk itu, pendampingan ini dilakukan tim pengabdian beserta oemah belajar matematika untuk membantu anak-anak dalam  pembelajaran matematika berbasis etnomatematika. Siswa mengenal dan belajar matematika dari permasalahan kontekstual dan realistis budaya Lampung seperti kain tapis, dan tarian tradisional. Metode pengabdian menggunakan penelitian participatory action research (PAR). Berdasarkan hasil kegiatan pendampingan anak-anak di Rt 021 Rt 023 dan Rt 023a di kelurahan yosorejo dapat diketahui bahwa siswa memiliki respon positif dalam pembelajaran  matematika berbasis budaya
PELATIHAN SISWA/I UNTUK MENINGKATKAN KEMAMPUAN TATA BAHASA INGGRIS DASAR MELALUI WEBSITE GRAMMAR
Authors: Ayu Mutiara , Sari Fatimah Mulya
Published: March 2022

Membimbing siswa untuk menguasai tata bahasa Inggris sesuai dengan yang mereka butuhkan merupakan tantangan untuk para guru. Terlebih lagi dalam situasi pandemi saat ini pembelajaran dilaksanakan secara daring. Banyak siswa/i masih mengalami kesulitan untuk memahami tata bahasa Inggris dasar. Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah memberikan solusi media pembelajaran dan pelatihan kepada siswa/i untuk meningkatkan kemampuan tata bahasa Inggris dasar melalui website grammar. Kegiatan diawali dengan pengumpulan data, pengembangan website grammar dan pelatihan kepada para siswa/i. Teknik yang digunakan dalam mengumpulkan data yang dibutuhkan adalah dengan observasi dan survei analisa kebutuhan siswa/i dalam pembelajaran tata bahasa dasar dipadukan dengan diskusi dan tanya jawab. Kemudian, tim pelaksana mengembangkan website grammar yang dibuat khusus untuk para siswa/i SMA Muhammadiyah Gading Rejo. Lalu, dilanjutkan dengan pelatihan penggunaan website grammar kepada para siswa/i dalam bentuk ceramah, diskusi, dan tanya jawab. Berdasarkan hasil pengabdian masyarakat dapat disimpulkan para siswa/i lebih bersemangat, termotivasi, dan lebih menyukai pelajaran tata bahasa Inggris dasar dengan memanfaatkan website grammar karena mereka dapat mengakses materi menggunakan website grammar dimanapun dan kapanpun karena dapat diakses setiap saat dengan mudah Sehingga, proses pembelajaran dapat dilaksanakan lebih efektif dan efisien.
Pelatihan Pembuatan Kerajinan Tangan Kalung Masker di Kelurahan Batuceper
Authors: Herdiansah Arief , Septarini Ri Sabti , Heriyani Nofitri , Firdaus Ali , Arizky Jefry , Ramadhanty Nur Suci
Published: March 2022

Kegiatan pengabdian masyarakat ini dilaksanakan dalam rangka membantu warga masyarakat kelurahan Batuceper untuk dapat memiliki kemampuan membuat kerajinan tangan sebagai salah satu solusi untuk menciptakan ide memperoleh pendapatan tambahan. Saat ini banyak warga masyarakat mengalami penurunan pendapat khususnya warga masyarakat yang memiliki pekerjaan informal yang diakibatkan karena aktifitas mencari rezeki yang terbatas karena diberlakukannya PPKM (Pemberlakuan Pembatasan Kegiatan Masyarakat) selama masa pandemic covid-19. Sasaran aktifitas pelatihan pembuatan kerajinan tangan kalung masker adalah ibu-ibu rumah tangga warga kelurahan Batuceper Kota Tangerang, yang ingin menumbuhkan kemampuan dan jiwa kewirausahaan serta keterampilan diri dalam membuat kerajinan tangan yang memiliki nilai jual. Proses pelatihan dilakukan selama 3 hari dan peneliti telah melakukan survey berkaitan dengan hasil pelatihan yang telah dilakukan dan didapatkan hasil yang sesuai dengan harapan dimana peserta pelatihan memiliki kemampuan dalam membuat kerajinan tangan kalung masker dan memahami bahwa hasil karyanya dapat dijual untuk menjadi salah satu sumber pendapatan tambahan keluarga.Kata Kunci: pelatihan, kerajinan tangan, kewirausahaan, kalung masker
BASIC ENGLISH FOR TOURISM BAGI SISWA/I SMK PGRI I LIMAU TANGGAMUS LAMPUNG
Authors: Dina Amelia
Published: March 2022

Industri pariwisata Indonesia telah memberikan dampak ke berbagai sektor, termasuk sektor industri perhotelan dan pendidikan. Menghadapi globalisasi dan era revolusi industri 4.0, jumlah wisatawan mancanegara semakin memengaruhi jumlah pertumbuhan hotel. Oleh karena itu, dibutuhkan sumber daya manusia yang mumpuni dalam bidang perhotelan. Hal ini mendorong dibukanya jurusan khusus kepariwisataan dan perhotelan di level universitas dan Sekolah Menengah Kejuruan (SMK). Salah satu SMK yang memiliki jurusan perhotelan adalah SMK PGRI I Limau. Siswa di SMK tersebut menghadapi berbagai tantangan dalam belajar bahasa Inggris.Tim PkM UTI memberikan solusi dengan menyelenggarakan kegiatan pelatihan untuk melatih skill berbahasa Inggris para siswa. Tim PkM UTI menggunakan games dan movies untuk menambah minat dan motivasi belajar siswa dalam belajar mengenai English for Tourism.Berdasarkan hasil dari observasi, pre-test, dan post-test kegiatan tersebut, siswa SMK PGRI I Limau mengalami peningkatan yang memuaskan. Mereka yang sebelumnya memiliki motivasi rendah dalam belajar bahasa Inggris menjadi lebih antusias. Nilai yang diperoleh siswa ketika pre-test juga mengalami peningkatan pada saat post-test sehingga menegaskan bahwa metode yang digunakan dalam kegiatan PkM sekolah binaan ini efektif dan tepat guna. Kata Kunci: English for Tourism, games, movies, pariwisata, perhotelan
Potatoes on my Head: A Stem based Learning Model for 2nd Grade Elementary Students
Authors: Sasriyanti Rika , Munawir Munawir , Aosi Ghenny
Published: March 2022

Education in the age of the industrial revolution 4.0 requires teachers to become innovative; teachers need to be able to adapt science and technology innovations to learning trends in the classroom. Science, Technology, Engineering, and Mathematics (STEM) approach is an alternative learning approach that allows students to have the complete skills desired by 21st century learning. Utilizing the STEM approach in a learning environment allows several topics to be effectively learned in a grade II elementary classroom. One STEM approach used ‘Potatoes in My Head’, has learners learn about food ingredients, using measuring instruments, as well as basic techniques of engineering. This paper is the result of best practices carried out by the teacher in the second semester of the 2018/2019 academic year and involved 29 second grade students at a public elementary school in Bukittinggi, Indonesia. The aim is to see the improvement of students’ learning outcomes and critical thinking skills. The knowledge was gathered through observation strategies and assessments of learning outcomes. The findings showed that the STEM approach in the Potatoes in My Head operation helped enhance learning outcomes and the students’ critical thinking skills.
The Relationship among Supervision, Integrity, and Performance of Primary School Teachers
Authors: Rahmah Siti , Gimin Gimin , Afrianto Afrianto
Published: March 2022

This study aims to analyze the relationship between supervision, integrity and performance of primary school teachers. The participantes of the study were 150 teachers of public elementary schools in Dumai Barat subdistrict, Dumai city, and the sample was determined using the proposite stratifield random sampling technique. The method of data collection was done by distributing questionnaires for the supervision and integrity variables, while for the teacher performance variable it was with documentation. The results of the study show that there is a positive correlation between supervision on teacher performance, a positive correlation between integrity and teacher performance, and a positive correlation between supervision, integrity and teacher performance.This study concludes that there is a positive and significant correlation among supervision, integrity, and performance of primary school teachers in Dumai Barat Subdistrict, Dumai City.
Development of Diorama Learning Media for Fourth Grade Elementary School
Authors: Sidyawati Lisa , Masruroh Riris , Siregar Intanta Erlianungka
Published: March 2022

Learning media is a tool or intermediary that facilitates teaching and learning process and communication between teachers and students. This research is development research that aims to produce a diorama learning media about the rice field ecosystem food chain that is effective, practical and fun. The subjects of this study were 47 fourth graders from a public elementary school in Donowarih, East Java. This study concludes that the use of media in the learning process have impacts on teachers, students and the learning process in the classroom. In designing learning media, several steps must be considered, namely; media must be designed as simple as possible so that students are clear and easy to understand, media must be designed according to the subjects taught, media design is not too complicated and confuse children, the design of the media should use simple and easily available materials, but should not reduce the meaning and function of the media itself, and media can be designed in the form of models, pictures, structured charts, etc, but the materials are cheap and easy to get, so the teacher will have no trouble designing problematic media. Further researchers can use and develop this research and examine more sources and references.
Development of Playing Card Learning Media Using Team Games Tournament Model on Volleyball Passing Materials in Grade 5 of Elementary School
Authors: Iswahyudi Suhud , Leksono Ibut Priono , Rusmawati Retno Danu
Published: March 2022

The This research aims to develop a learning media with the teams games tournament (TGT) model using playing cards as a medium in the learning of Sports and Health Physical Education (SHPE) with volleyball game passing materials in elementary school. This research is research and development (R&D) by adopting the 4D development model (Define, Design, Development, and Dissemination) proposed by Thiagarajan in 1974. This study was conducted in the 5th grade of public elementary school, Lamongan, East Java. The data collection technique in this study is in the form of validity questionnaires and practicality of teacher response and student response given to media experts, material experts, teachers and students. The data analysis technique used in this study is to calculate the average percentage score that can be seen from the results of media and material validation and the practical results of teacher and student responses. Results obtained from the media validity test showed that playing card learning using the TGT model on 5th grade volleyball passing material got a very valid category with a percentage score of 90.28%. Practicality got a very practical category with a percentage score of 94.89%. Playing card learning using the TGT model on 5th grade of volleyball passing material is said to be valid and practical because it has met the assessment criteria seen from the media presentation, aspects of media content, aspects of image illustration, material aspects as well as the response of teachers and students. This shows that playing card learning using the TGT model on 5th grade elementary school volleyball passing material is feasible for the use by teachers and students in the SHPE learning process. This research is expected to help educators in using learning media in elementary schools, especially SHPE subjects of volleyball passing materials and can be a reference for researchers who will carry out research with the same study in elementary school.
Development of Mathematics Digital Creative (Magic) Book for Elementary School
Authors: Faizah Hanim , Sugandi Eko , Susiloningsih Wahyu
Published: March 2022

The digitalization of education is a logical consequence of changing times. No one could have predicted that technology would be adopted so quickly by industry and society. The Covid-19 pandemic has cause students, teachers and schools to carry out teaching and learning activities by relying on digital technology. The use of e-book is becoming a trend because it is more environmentally friendly and more economical. The purpose of this research is to develop a 4C-oriented Mathematics Digital Creative (Magic) Book for elementary school students to determine the development process, feasibility, and effectiveness of its use. The results of the research show that the users gave a positive rating for the MAGIC Book. The use of digital modules provides benefits in learning, especially in online learning.
Development of Matryoshka Animal Media of Thematic Learning for Sixth Grade of Elementary School
Authors: Anggraeni Journalita Rose , Restian Arina , Regina Belinda Dewi
Published: March 2022

The research of matryoshka animal media development is established based on the problem that exists which is the students' characteristic of inability to focus on and the teacher who got difficulty in giving understanding upon the teaching material toward the students. Therefore, the researchers create a concrete tool for the learning targets. The aims of this research are: (1) to know and describe the development of the matryoshka animal media in thematic learning in grade IV theme 6 sub-theme 2 in SDN Ketawanggede Malang; (2) to know and describe the application of matryoshka animal media in thematic learning in grade VI theme 6 sub-theme 2 in SDN Ketawanggede Malang. This research used ADDIE developmental model. This developmental ADDIE model has 5 stages which are analysis, design, development, implementation, and evaluation. The data analysis technique used in this research is quantitative and qualitative to know the applicable product that has been developed. This research was done in grade IV of SDN Ketawanggede. The result from this developmental research of matryoshka animal media on thematic learning in grade IV theme 6 sub-theme 2 based on the scoring percentage which is (1) the percentage of material validation is 85% within a valid category, and master of media is 88% within a valid category, and right to be used. While the percentage of teachers' responses is 100% and students' response from 25 students shows 96% and pass the criterion. Based on the percentage matryoshka animal media is passed and right to be implemented.
Long-Life Pavement for Users of an International Roadway in New Mexico
Authors: Tyson Samuel , Tayabji Shiraz
Published: March 2022

A 36-lane-mile (60 lane-km) international roadway was rehabilitated in the United States of America (USA) during 2018 by the New Mexico Department of Transportation (NMDOT) to provide uninterrupted long-life pavement performance for commercial users of the roadway. The southern border of the USA with the country of Mexico marks the starting point of New Mexico State Road 136 (NM 136), a four-lane divided roadway that carries heavily-loaded trucks associated with the United States–Mexico–Canada Agreement (USMCA), formerly the North American Free Trade Agreement (NAFTA). Truck traffic in the dual north- and south- bound lanes of this roadway is especially high on the 9-mile (15-km) section of NM 136 between the international border and an intermodal railway facility located in the USA state of New Mexico. Prior to this rehabilitation project, the structural cross-section of NM 136 consisted of 4.5 to 6.0 inches (110 to 150 mm) of asphalt on 5.0 to 6.0 inches (130 to 150 mm) of coarse-grained soils. Prior to this project on NM 136, NMDOT had very little experience with concrete pavements and none with continuously reinforced concrete pavements (CRCPs). The structural design for this rehabilitation project utilized the existing asphalt pavement as a satisfactory base for the CRCP by milling 1.5 inches (40 mm) of the existing asphalt concrete (AC) pavement and applying a 1.5-inch (40-mm) AC levelling course followed by the CRCP. This paper presents the design and construction related details of the NM 136 CRCP project.
Degradation of urban environment: when residents’ expectations and policy
implementations do not coincide
Authors: Bhattacharjee Sujayita
Published: March 2022

The study endeavours to explore the degradation of
the urban environment in Mulund, a suburb of Mumbai, in the context of the
existing gap between residents’ expectations and policy implementation. The
results of the study indicate the presence of several urban environmental
problems in Mulund. A vast majority of the residents are of the view that the
policymakers are ignoring these issues. It is also found that there are not
many policies that target the environmental issues of Mulund specifically.
Based on these findings the study forwards certain suggestions towards
effectively tackling the environmental problems of the area. The application of
the suggested measures is expected to be greatly beneficial in bridging the
existing gap between residents’ expectations and policy implementation to
address the urban environmental issues of Mulund.
Computational Literature-based Discovery for Natural Products Research: Current State and Future Prospects
Authors: Lardos Andreas , Aghaebrahimian Ahmad , Koroleva Anna , Sidorova Julia , Wolfram Evelyn , Anisimova Maria , Gil Manuel
Published: March 2022

Literature-based discovery (LBD) mines existing literature in order to generate new hypotheses by finding links between previously disconnected pieces of knowledge. Although automated LBD systems are becoming widespread and indispensable in a wide variety of knowledge domains, little has been done to introduce LBD to the field of natural products research. Despite growing knowledge in the natural product domain, most of the accumulated information is found in detached data pools. LBD can facilitate better contextualization and exploitation of this wealth of data, for example by formulating new hypotheses for natural product research, especially in the context of drug discovery and development. Moreover, automated LBD systems promise to accelerate the currently tedious and expensive process of lead identification, optimization, and development. Focusing on natural product research, we briefly reflect the development of automated LBD and summarize its methods and principal data sources. In a thorough review of published use cases of LBD in the biomedical domain, we highlight the immense potential of this data mining approach for natural product research, especially in context with drug discovery or repurposing, mode of action, as well as drug or substance interactions. Most of the 91 natural product-related discoveries in our sample of reported use cases of LBD were addressed at a computer science audience. Therefore, it is the wider goal of this review to introduce automated LBD to researchers who work with natural products and to facilitate the dialogue between this community and the developers of automated LBD systems.
Interaction of Metallic Nanoparticles With Biomimetic Lipid Liquid Crystalline Cubic Interfaces
Authors: Cardellini Jacopo , Montis Costanza , Barbero Francesco , De Santis Ilaria , Caselli Lucrezia , Berti Debora
Published: March 2022

In the past decades, events occurring at the nano-bio interface (i.e., where engineered nanoparticles (NPs) meet biological interfaces such as biomembranes) have been intensively investigated, to address the cytotoxicity of nanomaterials and boost their clinical translation. In this field, lamellar synthetic model membranes have been instrumental to disentangle non-specific interactions between NPs and planar biological interfaces. Much less is known on nano-biointeractions occurring at highly curved biological interfaces, such as cubic membranes. These non-lamellar architectures play a crucial -but far from understood-role in several biological processes and occur in cells as a defence mechanism against bacterial and viral pathologies, including coronaviruses infections. Despite its relevance, the interaction of cubic membranes with nano-sized objects (such as viral pathogens, biological macromolecules and synthetic NPs) remains largely unexplored to date. Here, we address the interaction of model lipid cubic phase membranes with two prototypical classes of NPs for Nanomedicine, i.e., gold (AuNPs) and silver NPs (AgNPs). To this purpose, we challenged lipid cubic phase membranes, either in the form of dispersed nanoparticles (i.e., cubosomes) or solid-supported layers of nanometric thickness, with citrate-stabilized AuNPs and AgNPs and monitored the interaction combining bulk techniques (UV-visible spectroscopy, Light and Synchrotron Small-Angle X-ray Scattering) with surface methods (Quartz Crystal Microbalance and Confocal Laser Scanning Microscopy). We show that the composition of the metal core of NPs (i.e., Au vs Ag) modulates their adsorption and self-assembly at cubic interfaces, leading to an extensive membrane-induced clustering of AuNPs, while only to a mild adsorption of isolated AgNPs. Such differences mirror opposite effects at the membrane level, where AuNPs induce lipid extraction followed by a fast disruption of the cubic assembly, while AgNPs do not affect the membrane morphology. Finally, we propose an interaction mechanism accounting for the different behaviour of AuNPs and AgNPs at the cubic interface, highlighting a prominent role of NPs’ composition and surface chemistry in the overall interaction mechanism.
Evaluation of Ankle Fractures in 228 Patients From a Single Center Using Three-Dimensional Computed Tomography Mapping
Authors: Zeng Jianshuang , Xu Cheng , Xu Gaoxiang , Zhang Wupeng , Wang Daofeng , Li Hua , Gan Xuewen , Xiong Ying , Li Jiantao , Zhang Licheng , Tang Peifu
Published: March 2022

Purpose: The ankle joint has a complex anatomy structure with many causative factors and various injury mechanisms, and the clinical presentation of ankle fractures is diverse. This study aimed to analyze the characteristics of ankle fractures by applicating three-dimensional fracture line mapping technique.

Methods: A retrospective study was conducted on 228 patients with ankle fractures. Three-dimensional reconstruction was performed by CT images and the fracture reconstruction model was superimposed onto a standard model of the tibiofibula for fracture line drawing. Then the fracture lines were converted into a three-dimensional coordinate point data set. And the fracture line maps as well as the fracture line heat maps were generated in 3-Matic software and Unigraphics NX software, respectively.

Results: The dense area of the fibular fracture lines was located above the tibiofibular joint ligament and wrapped obliquely around the distal fibula from the anterior edge of the fibular neck. The fibular fracture line could be divided into three categories according to the degree of denseness. The dense area of the tibial fracture line is located within the anterior tibial fornix, the anterolateral corner, and the fibular notch. The tibial fracture lines can be classified into four categories according to the density of the fracture lines. The combined medial malleolus + posterior malleolar fracture line situation was found to be not encompassed by the existing AO and Lauge-Hansen (LH) classification systems according to this classification.

Conclusion: The 3D fracture line mapping technique can better reflect the distribution of ankle fracture lines and could help to establish a new ankle fracture typing system in the future.
The Biodegradability and in Vitro Cytological Study on the Composite of PLGA Combined With Magnesium Metal
Authors: Wang Xue , Sun Hui , Song Mang , Yan Guangqi , Wang Qiang
Published: March 2022

The main goal of this study was to develop a novel poly (lactic-co-glycolic acid) (PLGA) composite biodegradable material with magnesium (Mg) metal to overcome the acidic degradation of PLGA and to investigate the cytocompatibility and osteogenesis of the novel material. PLGA composites with 5 and 10 wt% Mg were prepared. The samples were initially cut into 10 mm × 10 mm films, which were used to detect the pH value to evaluate the self-neutralized ability. Murine embryo osteoblast precursor (MC3T3-E1) cells were used for in vitro experiments to evaluate the cytotoxicity, apoptosis, adhesion, and osteogenic differentiation effect of the composite biodegradable material. pH monitoring showed that the average value of PLGA with 10 wt% Mg group was closer to the normal physiological environment than that of other groups. Cell proliferation and adhesion assays indicated no significant difference between the groups, and all the samples showed no toxicity to cells. As for cell apoptosis detection, the rate of early apoptotic cells was proportional to the ratio of Mg. However, the ratios of the experimental groups were lower than those of the control group. Alkaline phosphatase activity staining demonstrated that PLGA with 10 wt% Mg could effectively improve the osteogenic differentiation of MC3T3-E1 cells. In summary, PLGA with 10 wt% Mg possessed effective osteogenic properties and cytocompatibility and therefore could provide a wide range of applications in bone defect repair and scaffold-based tissue engineering in clinical practice.
Site Logistics Factors Impacting Resource Use on Construction Sites: A Delphi Study
Authors: Dixit Manish Kumar , Venkatraj Varusha , Pariafsai Fatemeh , Bullen Jason
Published: March 2022

Over 48% of the world’s energy is consumed by buildings in their construction and operation alone, which add to over 39% of global carbon emissions. In addition, the building sector generates over 569 million tons of waste every year within just the United States. Reducing the environmental impacts and construction waste generated by buildings has, therefore, become a concerning global issue. Very few studies have addressed how site logistics planning may impact construction resource use on a site and how it may affect a project’s embodied energy. Site logistics plans control the sequencing of labor, materials, and equipment. Inefficient plans may lead to rework, material damage, and waste generation, requiring additional materials to complete the same task, which eventually increases the embodied energy of a project. In this study, we investigated, identified, and ranked site logistics-related factors that may affect the amount of resources used in a construction project. The Delphi Method is applied to determine, verify, and rank these factors to help improve existing methods of site logistics planning from an embodied energy perspective. Results show that the installer’s skill, technology/equipment, prefabrication, planning and forecasting, and material movement are among the top influential site logistics-related factors that may help reduce construction waste. Considering these factors while developing the site logistics plan will help lower the energy and carbon footprint of a construction project.
Eliminating Stubborn Insulated Deposition by Coordination Effect to Boost Zn Electrode Reversibility in Aqueous Electrolyte
Authors: Jiang Yuzhuo , Xia Xinyao , Qian Siyi , Zhang Jing , Zhou Pinxin , Gu Xuefang , Tian Shu , Qian Yijun , Ji Haoqing , Liu Jie , Qian Tao
Published: March 2022

Aqueous rechargeable zinc-ion batteries (ZIBs) have recently shined in energy storage and transmission, which are due to high safety and low cost. However, the extremely stubborn by-products in the Zn anode severely inhibited the Zn2+ adsorption/desorption and exacerbated the dendrite formation. Herein, we report a facile strategy to eliminate inert Zn4(OH)6SO4·xH2O for the improvement of ZIBs according to the coordination effect by employing ethylenediaminetetraacetic acid-diamine (EDTA-2Na) as a coordination additive in traditional electrolyte. Zn2+ is coordinated with the carboxyl group of the four acetyl carboxyl groups and the N in C–N bonds, forming a new chelating structure, and thus stubborn deposition will be dissolved in the electrolyte. As a result, the discharge capacity of 102 mAh g−1 in the ZnSO4/Li2SO4 with EDTA-2Na electrolyte at a current density of 4 C and a stable cycle life with a capacity of 90.3% after 150 cycles are achieved. It has been concluded that the coordination effect strategy provides a valuable idea for solving the defects of ZIBs.
First Report of a Methicillin-Resistant, High-Level Mupirocin-Resistant Staphylococcus argenteus
Authors: Shittu Adebayo Osagie , Layer-Nicolaou Franziska , Strommenger Birgit , Nguyen Minh-Thu , Bletz Stefan , Mellmann Alexander , Schaumburg Frieder
Published: March 2022

We describe the identification of a methicillin-resistant, high-level mupirocin-resistant Staphylococcus argenteus. The isolate (1801221) was characterized as t6675-ST2250-SCCmecIVc, and whole-genome sequencing revealed that the isolate possessed two plasmids. One plasmid (34,870 bp), designated p1_1801221 with rep23, harboured the mupirocin resistance (mupA) gene. The second plasmid (20,644 bp), assigned as p2_1801221 with rep5a and rep16, carried the resistance determinants for penicillin (blaZ) and cadmium (cadD). Phylogenetic analysis revealed that the isolate clustered with the European ST2250 lineage. The overall high similarity of both plasmids in S. argenteus with published DNA sequences of Staphylococcus aureus plasmids strongly suggests an interspecies transfer. The pathogenic potential, community and nosocomial spread, and acquisition of antibiotic resistance gene determinants, including the mupA gene by S. argenteus, highlight its clinical significance and the need for its correct identification.
Pre-Transplant Platelet Refractoriness and Alternative Donors Are Associated With Cytomegalovirus Retinitis in Hematopoietic Stem Cell Transplantation for Severe Aplastic Anemia
Authors: Zhang Yuehong , Liang Yuqin , Zhang Xu , Wang Shunqing , Cao Jinpeng , Gao Zongyin , Li Ling , Mo Wenjian
Published: March 2022

Background

Cytomegalovirus retinitis is a severe, vision-threatening opportunistic infection in an immunodeficient population. Reports on cytomegalovirus retinitis in hematopoietic stem cell transplant recipients due to severe aplastic anemia have been scant. This study assessed the risk of cytomegalovirus retinitis in relation to the pre-transplant status of severe aplastic anemia patients.

Methods

We conducted a retrospective nested case-control study of cytomegalovirus retinitis among severe aplastic anemia patients receiving allogeneic hematopoietic stem cell transplants in a tertiary care institution that attends severe aplastic anemia patients from southern China from January 1, 2013 to December 31, 2018. Each cytomegalovirus retinitis case was matched with four controls without cytomegalovirus retinitis by age and gender. Thirteen pre-transplant parameters were chosen to compare the risk factor levels between the cases and controls. Multivariable logistic regressions were used to estimate the odds ratios (ORs) and 95% confidence intervals (CIs).

Results

A total of 361 severe aplastic anemia patients received hematopoietic stem cell transplants in the study period 2013–2018 in our medical institution, and 31 (8.58%) developed cytomegalovirus retinitis. Cytomegalovirus retinitis was diagnosed in the median of 148 days after transplantation. We confirmed platelet refractoriness more frequently in cases than in controls (p = 0.0005). Compared with human leukocyte antigen-matched sibling donors, alternative donors were significantly more prone to cytomegalovirus retinitis (p = 0.0009). After stepwise selection in multivariate logistic regression, platelet refractoriness (OR 5.41, 95% CI 1.98–15.39), haploidentical donor (OR 7.46, 95% CI 2.19–34.87), and unrelated donor (OR 8.38, 95% CI 2.30–41.34) were associated with an increased risk of cytomegalovirus retinitis.

Conclusions

Pre-transplant platelet refractoriness and alternative donors were significant predictors of cytomegalovirus retinitis in severe aplastic anemia recipients. These results highlight the importance of accounting for existing risks while developing prevention strategies and preemptive treatment for severe aplastic anemia recipients. We recommend that the platelet count be closely monitored and thrombopoietin be properly applied during the period when cytomegalovirus retinitis is prone to occur.
Carotid Artery Stiffness: Imaging Techniques and Impact on Cerebrovascular Disease
Authors: Baradaran Hediyeh , Gupta Ajay
Published: March 2022

Arterial stiffness is an important measure of vascular aging and atherosclerosis. Though it is measured in many well-known epidemiologic cohort studies, arterial stiffness is often overlooked in routine clinical practice for a number of reasons including difficulties in measurement, variations in definition, and uncertainties surrounding treatment. Central arterial stiffness, a surrogate for aortic stiffness, is the most commonly measured marker of arterial stiffness. In addition to central stiffness, there are also a number of ultrasound based techniques to measure local vascular stiffness, including carotid stiffness. There is evidence that both local carotid stiffness and central arterial stiffness measures are associated with multiple cerebrovascular processes, including stroke and cognitive dysfunction. Mechanistic explanations supporting this association include increased flow load experienced by the cerebral microvasculature leading to cerebral parenchymal damage. In this article, we review definitions of carotid artery stiffness measures and pathophysiologic mechanisms underpinning its association with plaque development and downstream cerebral pathology. We will review the evidence surrounding the association of carotid stiffness measures with downstream manifestations including stroke, cerebral small vessel disease detected on brain MR such as white matter hyperintensities and covert brain infarctions, brain atrophy, and cognitive dysfunction. With consistent definitions, measurement methods, and further scientific support, carotid stiffness may have potential as an imaging-based risk factor for stroke and cognitive decline.