bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGEMBANGAN VIDEO PEMBELAJARAN TEKNIK DASAR BOLA BASKET DENGAN METODE RESEARCH AND DEVELOPMENT PADA KELAS X DI SMKN 40 JAKARTA
Authors: Abi Dzar Rabbani  , Hamidillah Ajie  , M. Ficky Duskarnaen
Published: September 2023

Mata Pelajaran Pendidikan Jasmani Olahraga dan Kesehatan adalah salah satu mata pelajaran yang ada pada kelas X di SMK Negeri 40 Jakarta. Pada mata pelajaran ini, siswa diharapkan dapat memahami semua materi yang diajarkan dan salah satunya adalah materi bola basket. Namun dengan waktu pelajaran olahraga yang hanya 2 jam dalam seminggu menyebabkan siswa kelas X tidak maksimal dalam mempelajari teknik dasar bola basket. Oleh karena itu, dikembangkan media pembelajaran berupa video pembelajaran dengan materi teknik dasar bola basket dengan menggunakan Metode Penelitian Research and Development (R&D). Tujuan penelitian ini adalah membuat media pembelajaran berbasis video untuk kelas X agar dapat memberikan kemudahan dalam penyampaian materi pada mata pelajaran Pendidikan Jasmani Olahraga dan Kesehatan pada kelas X di SMK Negeri 40 Jakarta. Pengembangan Video Pembelajaran ini dilakukan melalui beberapa tahap pengujian, yaitu pengujian terhadap Ahli Materi, pengujian terhadap Ahli Media, dan pengujian terhadap Responden Siswa. Berdasarkan Hasil Uji Ahli Materi mendapatkan presentase 100% yang dimana dikategorikan sangat baik dan Hasil Uji Ahli Media mendapatkan presentase 87,69% yang dimana dikategorikan sangat baik. Berdasarkan hasil uji coba menurut 42 siswa, tingkat pemahaman siswa terhadap video pembelajaran mendapatkan presentase 94,54% yang dimana dikategorikan sangat baik. Video Pembelajaran yang telah dikembangkan dapat dikatakan sangat baik atau layak digunakan dari segi pemahaman siswa maupun kelayakan produk video pembelajaran dalam Mata Pelajaran Pendidikan Jasmani Olahraga dan Kesehatan.
PERANCANGAN ANTARMUKA SISTEM KOLABORASI GURU MATA PELAJARAN TKI JAKARTA TIMUR BERBASIS USER EXPERIENCE DENGAN METODE LEAN UX
Authors: Fiatuzzahro  , Hamidillah Ajie  , Irma Permata Sari
Published: September 2023

Dalam menunjang pembelajaran, guru-guru sesama mata pelajaran saling berkolaborasi untuk dapat meringankan pekerjaannya tak terkecuali guru-guru mata pelajaran pada program keahlian Teknik Komputer dan Informatika (TKI) SMK Negeri di Jakarta Timur. Untuk memudahkan mereka dalam berkolaborasi secara online, dibutuhkan sebuah sistem yang dapat memudahkan mereka dalam bertukar perangkat ajar, bahan ajar, maupun soal. Sistem tersebut tentu harus memenuhi kebutuhan dan sesuai dengan karakteristik pengguna agar dapat digunakan dengan mudah. Penelitian ini menggunakan metode Lean UX untuk merancang tampilan sistem kolaborasi guru mata pelajaran TKI SMK Negeri di lingkungan Jakarta Timur. Setelah merancang tampilan sistem menggunakan metode Lean UX, selanjutnya sistem diuji dengan metode Thinking-Aloud testing. Dari pengujian didapatkan hasil bahwa rata-rata penyelesaian 56 tugas (task) dari 5 penguji adalah 98,8%. 3 penguji berhasil menyelesaikan 100% task, 1 penguji menyelesaikan sebesar 98,2% dan 1 penguji menyelesaikan sebesar 96,4%. Dari hasil pengujian didapatkan pula bahwa respon penguji didominasi oleh respon positif. Dapat disimpulkan bahwa hipotetsis yang dirancang pada tahap awal Lean UX dapat memenuhi kebutuhan pengguna dengan baik.
PENGEMBANGAN VIDEO TUTORIAL PENGGUNAAN GOOGLE CLASSROOM DALAM PELAKSANAAN PEMBELAJARAN JARAK JAUH DALAM MASA PANDEMI COVID-19 BAGI DOSEN UNIVERSITAS NEGERI JAKARTA
Authors: Wahyu Makuta R. E. P.  , M. Ficky Duskarnaen  , Hamidillah Ajie
Published: September 2023

COVID-19 merupakan wabah yang melanda dunia pada awal tahun 2020. Pemerintah mengeluarkan peraturan yang membatasi berbagai aktivitas sosial, termasuk aktivitas di institusi pendidikan. Berdasarkan surat edaran Menteri Pendidikan dan Kebudayaan Republik Indonesia Nomor 36962/MPK.A/HK/2020 mengenai Pembelajaran secara Daring dan Bekerja dari Rumah dalam Rangka Pencegahan Penyebaran Corona Virus Disease (COVID-19) mengimbau agar wilayah yang terdampak COVID-19 untuk memberlakukan pembelajaran secara daring dari rumah melalui berbagai sarana daring. Sejak pandemi COVID-19, perkuliahan di Universitas Negeri Jakarta terpaksa beralih menjadi Pembelajaran Jarak Jauh (PJJ) secara daring. Namun, masih terdapat dosen di Universitas Negeri Jakarta yang belum terbiasa dalam melaksanakan Pembelajaran Jarak Jauh, serta belum familier dengan teknologi yang digunakan dalam pelaksanaannya. Selain itu, belum tersedia media tutorial penggunaan teknologi PJJ yang dikembangkan khusus bagi dosen Universitas Negeri Jakarta. Tujuan dari penelitian ini yakni mengembangkan media video tutorial penggunaan Google Classroom sebagai salah satu platform PJJ yang dikhususkan bagi dosen Universitas Negeri Jakarta. Metode pengembangan yang digunakan dalam penelitian ini yakni Metode Luther – Sutopo (Authoring) dengan mengacu pada prinsip desain multimedia yakni prinsip coherence, segmentation, dan modality. Produk yang dihasilkan berupa video tutorial yang layak dari segi materi dan media serta sangat baik untuk digunakan oleh dosen Universitas Negeri Jakarta.
SISTEM PENDUKUNG KEPUTUSAN UNTUK MENENTUKAN PENERIMAAN ANGGOTA BARU BPRS ERAFM-UNJ DENGAN MODEL FUZZY MULTI ATTRIBUTE DECISION MAKING (FMADM) MENGGUNAKAN METODE SIMPLE ADDICTIVE WEIGHTING (SAW)
Authors: Nurul Azizah  , Bambang Prasetya Adhi  , Widodo
Published: September 2023

Salah satu faktor penting dalam sebuah organisasi adalah sumber daya manusia (SDM). Dengan adanya SDM yang berkualitas, produktivitas dalam sebuah organisasi akan tetep stabil dan semakin meningkat. Tetapi dalam pelaksanaannya BPRS ERAFM-UNJ mengalami masalah, permasalahan yang terjadi yaitu mengalami kesulitan dalam menentukan SDM ERAFM yang baru dengan waktu yang singkat. Akibatnya ERAFM memiliki tenaga kerja yang sebenarnya tidak sesuai dengan kriteria yang sudah ditentukan. Hal ini secara tidak langsung dapat menghambat produktivitas ERAFM sendiri. Oleh karena itu, sistem pendukung keputusan dianggap dapat membantu untuk pengambilan keputusan yang tepat, cepat dan mengurangi kesalahan dalam menentukan SDM ERAFM yang baru.  Ada banyak metode untuk membangun sebuah sistem pendukung keputusan. Salah satunya adalah model Fuzzy Multi Attribut Decision Making dengan metode Simple Additive Wieighting (SAW). Model fuzzy ini digunakan untuk mencari alternatif dari sejumlah alternatif dangan kriteria-kriteria yang telah ditentukan. Sedangkan metode SAW digunakan untuk merangking dari alternatif yang ada.  Sistem ini diharapkan dapat digunakan dan informasi yang dihasilkan dapat membantu mempercepat dalam mengambil sebuah keputusan.
PERANCANGAN ENTERPRISE ARCHITECTURE UNTUK STANDAR KOMPETENSI LULUSAN SESUAI STANDAR NASIONAL PENDIDIKAN DENGAN MENGGUNAKAN FEDERAL ENTERPRISE ARCHITECTURE FRAMEWORK (FEAF) DI SMK KARYA GUNA
Authors: Dira Putri Nandini  , Bambang Prasetya Adhi  , Hamidillah Ajie
Published: September 2023

Salah satu bidang yang merasakan dampak dari perkembangan teknologi adalah bidang pendidikan. SMK Karya Guna merupakan instansi pendidikan swasta, bernaung di bawah Yayasan Karya Guna. Perancangan dan pengembangan enterprise architecture (EA) dan teknologi informasi sudah selayaknya direncanakan dengan baik serta disesuaikan dengan kebutuhan dan kemampuan organisasi. SMK Karya Guna terus berupaya untuk membina dan meningkatkan mutu pendidikan yang diselenggarakan sesuai dengan visi dan misi SMK Karya Guna yaitu menciptakan sumber daya manusia yang sesuai dengan tuntutan pasar kerja. Standar Nasional Pendidikan (SNP) merupakan kriteria minimal tentang berbagai aspek yang relevan dalam pelaksanaan sistem pendidikan nasional dan harus dipenuhi oleh satuan pendidikan diseluruh wilayah hukun Negara Kesatuan Republik Indonesia. Penelitian ini bertujuan untuk menghasilkan sebuah blueprint untuk pengembangan sistem informasi implementasi Standar Kompetensi Lulusan sesuai SNP untuk untuk data, aplikasi, bisnis, dan teknologi. Standar Kompetensi Lulusan pada SMK merupakan salah satu syarat dari SNP yang harus dicapai dalam peningkatan mutu pendidikan, untuk penerapan dalam pemenuhan standar tersebut maka dibuat perancangan enterprise architecture menggunakan metode federal enterprise architecture framework (FEAF) yang terdiri atas empat level. Pada level pertama dilakukan analisis kondisi sekolah secara global dengan bantuan teknik analisis SWOT dan PEST. Level kedua merupakan pengidentifikasian proses bisnis. Proses bisnis tersebut dikelompokkan tingkat kepentingannya menggunakan bantuan analisis value chain. Level ketiga berisi pemodelan arsitektur informasi berupa rencana arsitektur bisnis, data dan teknologi yang akan digunakan untuk menampung sistem informasi. Untuk level keempat merupakan pembuatan model arsitektur enterprise menggunakan matriks FEAF. Hasil dari penelitian ini berupa blueprint sebagai buku pedoman organisasi sekolah dalam mencapai tujuan strategisnya.
PENGEMBANGAN ADVERGAME BERBASIS VISUAL NOVEL SEBAGAI MEDIA PROMOSI DIGITAL PRODI PTIK UNIVERSITAS NEGERI JAKARTA
Authors: Ika Dashipa Muslihah  , Hamidillah Ajie  , Irma Permata Sari
Published: September 2023

Penelitian ini bertujuan untuk mengembangkan advergame berbasis visual novel sebagai media promosi Program Studi Pendidikan Teknik Informatika dan Komputer Universitas Negeri Jakarta. Pengembangan media promosi ini menggunakan metode MDLC (Multimedia Development Life Cycle) versi Luther dengan enam tahap, yaitu concept, design, material collecting, assembly, testing, dan distribution. Penelitian ini melalui dua tahap pengujian, yaitu pengujian alpha dan pengujian beta. Pengujian alpha dilakukan oleh pengembang dengan menggunakan metode black box test, yaitu pengujian yang hanya dilakukan untuk mengamati hasil dari eksekusi fungsional pada game yang dikembangkan. Selanjutnya, pengujian beta dilakukan oleh pemain game visual novel yang dikembangkan dari kalangan pelajar SMA/SMK sederajat. Tahap pengujian ini dilakukan untuk mengetahui apakah game visual novel yang dikembangkan dapat diterima oleh masyarakat khususnya pelajar SMA/SMK sederajat. Untuk mengevaluasi penggunaan game visual novel sebagai media promosi Prodi PTIK UNJ dilakukan pengujian efektivitas media menggunakan EPIC model dengan empat dimensi, yaitu dimensi empati, dimensi persuasi, dimensi dampak, dan dimensi komunikasi. Hasil pengujian alpha dan pengujian beta menunjukan bahwa keseluruhan fungsi dari game yang dikembangkan dapat berjalan dengan baik dan sesuai. Hasil dari evaluasi media promosi menggunakan EPIC model menunjukan bahwa media promosi ini dapat bekerja secara efektif sebagai media promosi Prodi PTIK Universitas Negeri Jakarta.
PENGEMBANGAN VIDEO TUTORIAL GOOGLE DOCUMENT UNTUK PARA GURU DI SEKOLAH MENENGAH ATAS FUTURE GATE BEKASI
Authors: Ajri Mauludi  , Hamidillah Ajie  , Murien Nugraheni
Published: September 2023

Covid-19 adalah sebuah wabah yang dapat menyebabkan penyakit menular berupa gangguan ringan pada sistem pernafasan, infeksi paru-paru yang berat dan hingga kematian oleh virus tersebut. Berdasarkan surat edaran Menteri Pendidikan dan Kebudayaan Republik Indonesia Nomor 36962/MPK.A/HK/2020 mengenai pembelajaran secara daring dan bekerja dari rumah dalam rangka pencegahan penyebaran Covid-19 (Corona Virus Disease) mengimbau agar wilayah yang sudah terdampak Covid-19 untuk memberlakukan pembelajaran secara dalam jaringan (daring) dari rumah bagi siswa dan mahasiswa serta pegawai, guru, dan civitas academica melakukan aktivitas bekerja, mengajar, atau memberi kuliah dari rumah melalui video conference, digital documents, dan sarana daring lainnya. Sejak pandemi Covid-19 Sekolah Menengah Atas Future Gate (SMA FG) pembelajaran dengan tatap muka secara langsung tidak dapat dilaksanakan. Proses pembelajaran harus tetap berjalan atau dilaksanakan walaupun adanya pandemi Covid-19 digantikan dengan proses pembelajaran jarak jauh. Untuk meningkatkan pembelajaran jarak jauh penulis mengembangkan video tutorial Google Document untuk para guru Sekolah Menengah Atas Future Gate. Tujuan penulis adalah untuk membuat video tutorial penggunaan Google Document berupa fitur-fitur dan kegunaan untuk pendistribusian materi, memberiakan tugas dan dalam mengerjakan tugas sebagai proses pembelajaran jauh secara optimal. Video tutorial Google Document dikembangkan dengan menerapkan prinsip desain multimedia yaitu prinsip koherensi, prinsip segmentasi, dan prinsip modalitas. Pengembang produk ini dilakaukan dengan metode pengembangan Multimedia Development Life Cycle (MDLC). Pada metode ini terdapat pengkonsepan, pendesainan, pengumpulan materi, pembuatan, testing, dan pendistribusian. Produk yang dihasilkan berupa video tutorial yang berfungsi sangat baik sesuai dengan tingkat kelayakan.
PENGARUH PEMBELAJARAN JARAK JAUH TERHADAP HASIL BELAJAR MAHASISWA UNIVERSITAS NEGERI JAKARTA
Authors: Fauzan Fattah Hermawan  , Yuliatri Sastrawijaya  , Erda Kamaruddin
Published: September 2023

Pembelajaran Jarak Jauh secara populer diterapkan di berbagai institusi pendidikan sememjak meluasnya pandemi COVID-19, menggantikan pembelajaran konvensional dengan konteks pembelajaran secara langsung di dalam kelas. Hal tersebut yang menjadi latar belakang penulis dalam menyusun penelitian ini. Penelitian ini bertujuan untuk menguji dan mendapatkan jawaban secara empiris mengenai pengaruh antara Pembelajaran Jarak Jauh terhadap hasil belajar. Penelitian ini menggunakan variabel independen berupa Pembelajaran Jarak Jauh yang di dalamnya mengandung prinsip-prinsip: kebebasan, kemandirian, keluwesan, kesesuaian, mobilitas, dan efisiensi. Variabel dependen dalam penelitian ini adalah hasil belajar. Sampel penelitian ini adalah mahasiswa Rumpun Teknik Elektro Fakultas Teknik Universitas Negeri Jakarta Angkatan Tahun 2020 pada Semester Ganjil Tahun Akademik 2020/2021. Pemilihan sampel dilakukan dengan metode cluster random sampling. Pengumpulan data dilakukan dengan menggunakan angket/kuesioner yang disebarkan kepada 149 responden, dengan masing-masing angket memiliki 33 butir pernyataan dalam bentuk skala Likert. Analisis data penelitian ini menggunakan regresi linier berganda. Hasil penelitian menyimpulkan bahwa variabel kesesuaian dan efisiensi secara individu berpengaruh positif signifikan dalam memengaruhi hasil belajar mahasiswa. Sebaliknya, variabel kemandirian memiliki pengaruh negatif terhadap hasil belajar mahasiswa. Walaupun demikian, keenam prinsip Pembelajaran Jarak Jauh tersebut secara bersama-sama/simultan memengaruhi hasil belajar mahasiswa Rumpun Teknik Elektro Fakultas Teknik Universitas Negeri Jakarta Angkatan Tahun 2020 dengan signifikan.
DESAIN DAN IMPLEMENTASI MEDIA TUTORIAL BERBASIS VIDEO UNTUK PENGGUNAAN MICROSOFT OFFICE 365 BAGI CIVITAS AKADEMIKA DI UNIVERSITAS NEGERI JAKARTA
Authors: Floryberthus A.P.H  , Hamidillah Ajie  , M. Ficky Duskarnaen
Published: September 2023

Kurangnya sosialisasi dan sumber informasi yang memadai menyebabkan banyaknya civitas akademika Universitas Negeri Jakarta (UNJ) belum mengetahui mengenai Microsoft Office 365. Berkat kerja sama antara UNJ dengan Microsoft, civitas akademika mendapatkan akses penuh untuk menggunakan Microsoft Office 365. Tetapi dikarenakan kurangnya sosialisasi dan tutorial dalam menggunakan Microsoft Office 365, banyak civitas akademika yang belum menggunakan Microsoft Office 365 dengan maksimal. Karenanya dibutuhkan nya video tutorial untuk mensosialisasikan dan memberikan pengenalan kepada civitas akademika mengenai Microsoft Office 365. Tujuan penelitian ini adalah untuk mendesain dan mengimplementasi media tutorial berbasis video untuk penggunaan Microsoft Office 365 bagi civitas akademika di UNJ agar layanan Microsoft Office 365 di UNJ dapat dimanfaatkan secara optimal oleh civitas akademika. Pengembangan video tutorial ini menggunakan model pengembangan Multimedia Development Life Cycle (MDLC) versi Luther – Sutopo dan prinsip multimedia yang menghasilkan video tutorial berdurasi 13 menit. Pengujian kelayakan untuk produk dilakukan oleh tim ahli dan responden memberikan hasil tingkat kelayakan 86.4% yang dikategorikan “Sangat Layak”. Sehingga video dapat dinyatakan sebagai media informasi dan tutorial yang layak digunakan.
PENGEMBANGAN WEB SERVICE APLIKASI MANAJEMEN ASET UPT TIK UNIVERSITAS NEGERI JAKARTA
Authors: Tri Baswara Ari Aji  , Hamidillah Ajie  , Murien Nugraheni
Published: September 2023

UPT TIK bertanggung jawab dalam mengelola aset-aset IT yang ada di UNJ. Dalam pelaksanaanya UPT TIK belum memiliki sistem manajemen aset yang baik sehingga masih banyak aset IT yang terlantar keberadaannya. Tujuan dari penelitian ini adalah menghasilkan web service yang dapat digunakan untuk membuat aplikasi manajemen aset yang bersifat adaptif terhadap penambahan jenis aset baru kedepannya.

Dalam pengembangan web service aplikasi manajemen aset UPT TIK UNJ ini menggunakan metode spiral dengan melakukan wawancara dan studi literatur. Wawancara menghasilkan daftar kebutuhan fungsional dan selanjutnya dibuat rancangan Entity Relationship Diagram (ERD), database, endpoint. Kemudian implementasi dilakukan dengan menggunakan perangkat lunak Node.JS dengan framework Express.JS dan menghasilkan 41 endpoint. Pengujian dilakukan dengan menggunakan metode unit testing dengan aplikasi Postman yang dilakukan terhadap 41 endpoint dan didapat hasil pengujian semua endpoint berjalan sukses sehingga memenuhi kriteria dan layak digunakan.
UGV SLAM payload for low-visibility environments
Authors: Ennasr Osama , Paquette Michael , Glaspell Garry
Published: September 2023

Herein, we explore using a low size, weight, power, and cost unmanned ground vehicle payload designed specifically for low-visibility environments. The proposed payload simultaneously localizes and maps in GPS-denied environments via waypoint navigation. This solution utilizes a diverse sensor payload that includes wheel encoders, inertial measurement unit, 3D lidar, 3D ultrasonic sensors, and thermal cameras. Furthermore, the resulting 3D point cloud was compared against a survey-grade lidar.
Successful Execution of Hydraulic Fracturing via a Multi-Stage Ball Drop Completion to Extend Platform Life and Access Previously Untouched Reserves in a Challenging Operational Environment – A Central North Sea Case Study
Authors: Channa Shari , Bocaneala Bogdan , Wood Peter , Tolson Karl , Heidenreich Ben
Published: September 2023

In 2019 the Armada hub was evaluated for drillable targets to exploit previously untouched reserves and extend the life of the platform. Seymour Horst oilfield, the most eastern of fields served by Armada, was discovered in 1983, and appraised the same year. These wells were drill stem tested in multiple zones, but all had low production rates. Reservoir simulation work estimated that drilling and completing a long horizontal well in Seymour Horst's upper and middle Skagerrak sands followed by multi-stage hydraulic fracturing treatments to overcome reservoir compartmentalization and low vertical permeability would bring the well to economic rates. Well 22/5b-A14 was sanctioned and drilled in 2019/2020.

Execution of hydraulic fracturing campaigns in long horizontal wells in the challenging North Sea environment is complex, with great emphasis on operations efficiency. Considerable time was put towards each element of the well construction and job design, including the modelling of reservoir characteristics critical for fracturing, multi-stage fracturing completion design, fracturing materials, management of resources onsite during execution, and the design of the CT string to be used as contingency. This paper describes the detailed planning process and utilization of a combination of new North Sea technologies and operational techniques to successfully execute the campaign with large proppant volumes in the high temperature reservoir, in a challenging offshore environment, in an efficient and cost effective manner.

Over 40,000 Bbl. of clean fluid and 2,500,000 lbs of 16/20 resin coated ceramic proppant with ~7.5% of that volume being infused with scale inhibitor, was pumped into the well from the dedicated stimulation vessel. The campaign was executed over the winter months in 2020, and therefore was subjected to waiting on weather delays. As a result, the vessel operating efficiency was 11% vs the estimated 22%. However, the use of the ball actuated multi-stage system eliminated five of the seven intervention operations that would have been required in a conventional completion system between each stage, saving valuable rig time, and allowing the stimulation vessel to maximise the use of the operable weather windows. Further time savings were made through use of water bunkering operations, reducing the number of sailings required by the stimulation vessel to place such a large volume of fluid and proppant. Production rates, while initially lower than expected, remain sustained. There have been no issues with scale to this date.
Self-Degrading Particulates Improving Proppant Placement in High Temperature-High Permeable Sandstone Formation
Authors: Alabdulmuhsin Ali , Almulhim Abdulrahman , Lopez Alfredo , Araujo Oscar , Zeghouani Mohamed
Published: September 2023

In proppant stimulation treatments, when high fluid leak-off and low fluid efficiency is encountered, typically the first measure taken in job redesign is to increase the PAD volume and pumping rate to mitigate fracture width reduction. These measures will adversely affect the job treatment cost and increase the water load on the formation. High fluid leak-off and low fluid efficiencies could be due to high permeability formation and/or presence of Natural Fractures (NF).

In an effort to prevent permanent formation or proppant pack damage, this paper discusses the use of self-degrading multiple particle sizes while pumping. When these particles were used, it allowed to successfully seal off the width near the fracture's tip, controlling excessive leak-off and improving proppant placement volume.

Permeability and NF could be identified during pre-frac injection tests; however, in some formations when diagnostic injection is conducted at lower rate, NF might not be easily identified and could be opened-up unexpectedly during main fracture treatment as long as the net pressure increases, leading into an uncontrolled leak-off, early flush or screen-out. A comprehensive well data analysis performed during design stage along with an effective diagnostic injection test before main treatment can identify low fluid efficiency. This paper presents results from extensive testing and application of self-degradable particulates as a leak-off material for the first time in the middle east.

The Novel approach of this method allowed for controlled stimulation operations with the opportunity of limiting the high leak-off. This would ultimately increase the chance of proppant placement and avoid screen-out scenarios.
Solving the Puzzle: Eliminating Screenouts from Tight Gas Reservoir Operation
Authors: Al Shueili A. , Al Salmi H. , Jaboob M. , Al Qassabi M. , Kayumov R. , Kurniadi S. D.
Published: September 2023

Development of the tight gas Khazzan Field in Sultanate of Oman has progressed through many years of extensive learning. Massive hydraulic fracturing operations became a key part of the completions in the Barik reservoir. Fracturing design was optimized with time, eventually achieving a fit-for-purpose fracturing design. However, when activities moved towards the south, increase in reservoir gross thickness was encountered, and implementation of the standard fracturing design led to increased number of screenouts.

Many parameters were examined to discover the root cause of the increased screenout rate, such as changes in pumping schedules, changed reservoir properties, fracture execution data, completion details, and many others. After the thorough analysis, it was found that lack of hydraulic width played the major role in most of the screenouts. Multiple solutions to resolve the lack of hydraulic width were considered: increase in gel loading, increase in pumping rate, optimizing pad volume, changing completion strategy, reducing job size, reducing proppant concentration, etc.

After thorough consideration, it was found that removing the larger proppant might be an optimum solution for this challenge. The standard fracturing design typically included 70% of smaller ceramic 20/40 and 30% of larger 16/30 ceramic proppant. Performed production analysis has shown that some reduction in fracture conductivity by removing 16/30 proppant will have minimum negative effect on well productivity in conditions of the tight gas Barik reservoir. The results of this change have exceeded expectations: screenout rate has declined from 38% to 0% while post-fracturing production has shown the same gas rates as those with larger proppant.

This paper shows how a simple but properly evaluated solution has regained the success of proppant fracturing operations in Sultanate of Oman.
Multi-Layer Vertical DFIT and Mini-Fracture Assessment in an Unconventional Tight Shale Vertical Well
Authors: Wahbo Naief , Alowaid Abdulrahman , Mechkak Karim , Rueda Jose
Published: September 2023

The main objective of this study is to present the findings of an assessment conducted on an unconventional vertical well, which aimed to acquire closure pressure estimates at multiple depth points, evaluate fracture height propagation at specific sections, identify fracture barriers, and relevant reservoir properties at different intervened sections. The subjected well passed through seven different sections, some of which were considered potential prolific targets while others were considered fracturing barriers. The first objective of the well was to acquire multiple closure pressure values at multiple depths that can later be used to calibrate stress models. To meet that objective, a diagnostic fracture injection test (DFIT) was conducted at the seven different sections with variable monitoring durations. Downhole memory gauges were installed to minimize uncertainties related to pressure fluctuations in surface gauges which could be attributed to day to night temperature variations. Out of the seven DFITs, closure pressure was estimated in two out of the seven sections. The second objective was to assess vertical fracture height growth in two of the most prolific sections, with a design objective of mimicking a single cluster in a horizontal lateral. To achieve that, a mini fracture at pre-determined pumping rates and volumes was pumped followed by three high resolution temperature (HRT) logs acquired at 2-hour gap intervals, yielding cool down and warm up profiles that reflect height growth. For both mini fractures pumped at the two sections, estimation of maximum fracture height was obtained. Overlapping results from both mini fracture tests indicated that the two sections did not interfere with each other. The novelty of this study lies in its implementation rarity in unconventional fields due to the uncommonness of vertical unconventional wells. The information gathered from this study provides key parameters for understanding fracture behavior in multiple vertical sections, which are essential in the design of stimulation operations and future decision-making processes.
Frac Pack Journey Through Learnings and Improvement Optimizes Field Production Performance
Authors: Roh Cheol Hwan , Abd Hamid Mohd Hisham , Salleh Nurfarah Izwana , Salleh Suman , Rozlan Muhammad Rizwan , Bela Sunanda Magna , Zeidan Amr , B M Zin Zulkifli , Zulkifli Anwar Husen
Published: September 2023

Conventional gravel pack provided robust sand control but with high skin and poor productivity for the last 3 decades. Recently, frac pack was revived with improvements in perforations, net pressure, tip screen out, and downhole equipment and was implemented in phase 1 development of D field in early 2020 to achieve high productivity and sand control. Initial phase of frac pack application saw challenges in designs and operations. Valuable lessons have been captured and implemented in the next phases in B field in late 2020 and in D field in 2022. Operation optimization resulted in simplification of the procedures, reduction of fluid volume injected, reducing in rig time and cost while maintaining the quality of frac pack. Real time decision which differs from initial plan had to be made during implementation to produce the best outcome.

Optimizations in procedures and chemical selections brought higher productivity while achieving effective sand control. Some frac pack were done without minifrac. Further optimization in the frac pack has been achieved by applying screenless frac pack with resin coated proppant for one well in D field and resulted in increase in well productivity and well completion cost reduction. Highly efficient operations were achieved through procedural improvement. Detrimental chemical additive in frac fluid has been identified and eliminated in the second phase wells. These efforts have contributed to achieve or exceed the production targets while providing robust sand and fine control as an effective downhole sand control completion.

This paper examines the challenges, offers improvement to make frac pack a viable solution to achieve field production objectives, and evaluates production performances across the phases.
Acute Hypoxic Respiratory Failure Due To Lenalidomide-Induced Interstitial Pneumonitis
Authors: O’Meara Kyle , Fansiwala Kush , Kathuria-Prakash Nikhita , El-Masry Monica , Oh Scott
Published: September 2023

Background:
Patients with multiple myeloma are functionally immunosuppressed and when presenting with respiratory failure, pulmonary infections must always be considered. However, while rare, adverse effects of immunomodulating medications used in the treatment of multiple myeloma can also result in potentially life threatening respiratory failure, a distinction which has important treatment implications.
Case Presentation:
An 80-year-old male with recently diagnosed multiple myeloma undergoing treatment with lenalidomide presented with acute, rapidly progressive hypoxic respiratory failure ultimately requiring intubation and mechanical ventilatory support. Imaging revealed bilateral pulmonary opacities, however infectious workup was negative, and he was ultimately diagnosed with lenalidomide-induced interstitial pneumonitis, a rare but serious adverse effect of this medication. He was treated with drug discontinuation and steroids, and quickly recovered.
Conclusion:
Lenalidomide is an immunomodulating medication used in the treatment of multiple myeloma, and is associated with rare but serious cases of drug-induced interstitial pneumonitis. Thus, if a patient receiving lenalidomide develops shortness of breath and/or hypoxia, drug-induced pneumonitis must be on the differential. Permanent drug discontinuation with or without corticosteroids is the mainstay of treatment, and patients are often able to fully recover, underscoring the need for early recognition of this condition.
CuFeNi LDHs/magnetic biochar composite as peroxymonosulfate activator for removal of enrofloxacin
Authors: Gan Xin rui , You Yang , Liu Wei bao , Zhou Sheng wen , Shang Jiang wei , Cheng Xiuwen
Published: September 2023

In this study, cost-effective peroxymonosulfate (PMS) was used as an oxidant, and a Cu-Fe-Ni layered hydroxides/magnetic biochar composite (MBC/CuFeNi LDHs, MC-1 for short) was used as a catalyst to remove enrofloxacin (ENR), a high toxic pollutant identified in water. The layered structure and surface functional groups of the composite contributed to the degradation of ENR. More specific, 91.6% of ENR was degraded by MC-1&PMS system within 20 minutes. The superior performance of MC-1 was confirmed by characterization analysis and catalytic experiments. The catalytic system not only possessed good recycling performance, but also had excellent magnetic properties. In addition, the catalytic mechanism of the MC-1&PMS system was attributed primarily to the generation of hydroxyl (∙OH), but also the sulfate (SO4∙−), singlet oxygen (1O2) and superoxide radicals (∙O2−). Furthermore, a possible degradation pathway of ENR was proposed. This study provided a new insight for the design of heterogeneous carbon catalysts in advanced oxidation field.
Pathophysiological features of disease in a large animal model of COPD
Authors: Derseh Habtamu , Piedrafita David , Davies Andrew , Ibrahim Jibriil , Herrmann Natasha , Papagianis Paris , Preston Sarah , Meeusen Els , Bischof Robert
Published: September 2023

Background
Chronic obstructive pulmonary disease (COPD) is a serious chronic disease of the airways that affects many people worldwide and have limited treatment options. While small animal models provide a platform for therapeutic investigations into COPD, their deficiencies continue to impede clinical translation. Alternatively, as a large animal model, sheep have a respiratory system that is anatomically and physiologically similar to that of humans, which has provided validation for their use in airway disease research. The aim of this study was to better understand disease pathology in a large animal (sheep) experimental model of COPD.
Methods
COPD was induced in sheep following lung exposure to porcine elastase (PE) and repeated weekly lung exposures to lipopolysaccharide (LPS) over a period of 8 weeks. Bronchoalveolar fluid and blood samples were collected for immune analyses. Lung function was assessed and lung tissues were collected for histopathology and RNA sequencing.
Results
Lung neutrophil levels were elevated in response to repeated airway exposure to PE/LPS, accompanied by a significant decline in ventilation over time. Histological evidence of COPD-like disease changes included chronic inflammation with increased airway and tissue inflammation scores, together with significantly larger airway wall area measures, increased connective tissue deposition and dysregulated gene expression.
Conclusions
These studies demonstrate sustained chronic airway inflammation and pathophysiological lung changes in a sheep model of COPD, providing many similarities to that seen in COPD patients. This work opens a pathway for future translational studies using this unique large animal model of COPD, which will serve to bridge the gap between smaller animal models and humans.
Protocol for the Next Generation brain health survey: an international survey of attitudes, understanding and exposure to brain health risk factors in young adults
Authors: Booi Laura , Gregory Sarah , Bridgeman Katie , Willingham Katie , Davies Michaela , Agyapong Nana , Amfo-Antiri Auswell , Caipa Maritza Pintado , Jenkins Natalie , Eyre Harris A , Su Li , Lawlor Brian , Muniz-Terrera Graciela , Farina Francesca R
Published: September 2023

Background: Evidence suggests that risk factors for Alzheimer’s disease and related dementias (ADRD) are at least partially modifiable, and that lifestyle risk accumulates as we age. However, the prevalence and impact of lifestyle-related risk factors in young adulthood (i.e., 18-39 years) remain poorly understood, with some risk factors that are developed in early adulthood being difficult to remove and reverse at midlife. The Next Generation (NextGen) brain health survey is the first of its kind to be designed specifically for young adults, with the aim of exploring attitudes, understanding and exposure to ADRD risk and protective factors in this life stage.
Methods: The NextGen survey is an international, cross-sectional survey of young adults aged 18-39 years. The survey was developed in three phases with ongoing input from public advisors (i.e., young adults from Europe, North America, and Africa). First, we adapted items from existing literature for the target population. Second, we conducted focus groups with young adults to review the items and explore new themes. Third, we piloted the survey in an international network, including brain health researchers, clinicians, and advocacy groups. Feedback was integrated to create the finalized survey.
Discussion: The NextGen survey will be conducted online and made available to individuals aged 18-39 years internationally. Results will contribute new knowledge about young adults and ADRD risk exposure before mid-life, including much-needed evidence in populations that are traditionally under-represented in research. Findings will also help to identify mediators and modifiers of associations between knowledge, attitudes, and risk exposure, and provide the basis for comparison with middle-aged and older populations.
Corporate Social Responsibility Initiatives: Strategies and Mechanisms for Promoting Public Health in Jordan University College of Morogoro Municipality, Tanzania
Authors: Msambali Irene Matern , Mwonge Lazaro Athanas
Published: September 2023

Background
Our study explored the strategies and mechanisms Jordan University College (JUCo) employed in Morogoro Municipality, Tanzania, to promote public health through corporate social responsibility (CSR) initiatives. With the growing recognition of the role businesses play in societal well-being, CSR has gained prominence as a tool for addressing public health challenges. This study examined JUCo's CSR activities, their impact on public health, and the underlying strategies and mechanisms that contribute to their effectiveness.
Methods
Data collection involved a mixed-methods approach, combining surveys, interviews, and document analysis.
Results
The findings highlight the various CSR initiatives implemented by JUCo, such as health education programs, infrastructure development, and community engagement. Moreover, the study reveals the key strategies and mechanisms utilized, including partnerships with stakeholders, strategic planning, resource allocation, and monitoring and evaluation.
Conclusion
The study concludes with recommendations for enhancing the effectiveness and sustainability of CSR initiatives for promoting public health in educational institutions like JUCo.
Isoflurane anesthesia decreases excitability of inhibitory neurons in the basolateral amygdala leading to anxiety-like behavior in aged mice
Authors: Li Mengyuan , Zhang Ruijiao , Wu Shiyin , Cheng Liqin , Fu Huan , Qu Liangchao.
Published: September 2023

Objective: To explore the role of inhibitory neurons in the basolateral amygdala (BLA) in anxiety-like behaviors in aged mice after isoflurane anesthesia.
Methods: Thirteen-month-old male C57BL/6 mice were divided into a control group and an isoflurane anesthesia group with 15 mice in each group. An aged mouse model receiving isoflurane anesthesia was established, and behavioral tests were performed using the elevated plus maze and the open field test. The states of BLA excitatory neurons and inhibitory neurons were recorded by whole-cell patch-clamp recording, and further inhibition of BLA excitatory neuron excitability was observed by giving 20 ng/mL diazepam to see the state of inhibitory neurons.
Results: Behavioral testing showed that aged mice in the isoflurane anesthesia group showed significant anxiety-like behavior, spending more time in the closed arm, showing more wall climbing behavior, and covering more distance. Whole-cell patch-clamp recording showed that the excitability of BLA excitatory neurons was significantly increased after isoflurane anesthesia (the resting potential and input resistance were significantly higher, the action potential threshold was lower, and the number of action potentials emitted was significantly increased), while the excitability of inhibitory neurons was significantly reduced (the resting potential and input resistance were significantly lower than those in the control group, the action potential threshold was significantly higher, and the number of action potentials emitted was significantly fewer). After giving diazepam, the excitability of BLA inhibitory neurons was significantly increased, while the excitability of excitatory neurons reduced significantly.
Conclusion: Anxiety-like behavior occurs in aged mice after receiving isoflurane anesthesia, and may be caused by a decrease in the excitability of inhibitory neurons in the BLA area of aged mice after isoflurane anesthesia, leading to an increase in excitatory neuronal activity, and ultimately exhibiting anxiety-like behaviors.
Looking at pregnancy terminations from the opposite side: the perspective of healthcare professionals
Authors: Akpınar Arzu , Turgut Yasemin , Yangın Hatice
Published: September 2023

Background
It is already known that the woman and the family can be affected in various ways psychologically and physiologically during the termination of pregnancy, but the healthcare professionals who manage the process can also be affected while being effective on the process. We aimed to determine the opinions and experiences of the healthcare professionals regarding pregnancy terminations with this qualitative study.
Methods
A hermeneutic phenomenological design was used in this qualitative study. Data collection were obtained through face-to-face and individual in-depth interviews using a semi-structured interview guide between December 2018 - April 2019. The sample of the study consisted of 26 participants from different professions who have encountered pregnancy termination process.
Results
Data were grouped under two themes with seven three sub-themes. First theme about how health professionals were affected by the process has been defined as ''How are healthcare professionals affected during the termination process?''. Second theme about how they acted in the process has been defined as ''What do healthcare professionals do in the termination process?''.
Conclusions
As a result of our study, it was determined that health professionals working on pregnancy termination were adversely affected and had problems while giving care. In order to prevent adverse effects on healthcare professionals, some facilitator methods are needed to strengthen prevention strategies and facilitate the process for them.
Relationship between fear of childbirth and oral health-related quality of life in pregnant women: the mediating effect of pregnancy anxiety
Authors: Chen Yujia , Zhao Jing , Zheng Jin , Zou Zhijie , Chen Xiaoli
Published: September 2023

Background
Oral health is an important public health issue. Many studies have explored the relationship between mental health and oral health-related quality of life. However, no studies have explored the relationship between fear of childbirth and oral health-related quality of life in pregnant women. However, several studies have shown that pregnancy anxiety is associated with fear of childbirth and oral health-related quality of life. This study aimed to investigate the relationship between fear of childbirth and pregnant women's oral health-related quality of life and explore the mediating role of pregnancy anxiety.
Methods
This study is a cross-sectional design. The cross-sectional data from 478 pregnant women were included. A descriptive analysis was conducted to describe the sample characteristics. Multiple linear regressions were used to evaluate the relationship between fear of childbirth and oral health-related quality of life. PROCESS software was used to analyze the mediating effect of pregnancy anxiety.
Results
A significant direct effect between fear of childbirth and oral health-related quality of life has been indicated (β = 0.107, SE = 0.019, 95% CI (0.002,0.076)), and the direct effect accounted for 60% of the total effect. Pregnancy anxiety partially mediated between fear of childbirth and oral health-related quality of life (β = 0.072, SE = 0.030, 95% CI (0.015, 0.131)), and the indirect effect accounted for 40% of the total effect.
Conclusions
Pregnancy anxiety mediates the relationship between fear of childbirth and oral health-related quality of life in pregnant women. Therefore, attention should be paid to maternal fear of childbirth and pregnancy anxiety to improve pregnant women's oral health-related quality of life.
HBV-miR-3 is closely related to HBV replication and strongly predictive of HBeAg seroconversion in PegIFN-α treated patients
Authors: Xu Zhenyu , Xu Yun , Wu Zhenyu , wang Sujuan , Zhang Min , Jiang Yongfang , Gong Guozhong
Published: September 2023

Background: HBV-miR-3 is encoded by HBV and takes part in pathogenesis of HBV-related liver disease. Whether HBV-miR-3 has relationship with HBV replication and is predictive of PegIFN-α treatment response is still unknown.
Methods: HBV-miR-3 quantification is based on qRT-PCR. The relationship of HBV-miR-3 and HBV replication, and predictive value of HBV-miR-3 are evaluated in a cohort of 650 HBeAg positive patients from a multi-center, randomized phase III clinical trial for the study of PegIFN-a2b.
Results: HBV-miR-3 is significantly positive related to HBVDNA, HBVpgRNA, HBeAg and HBsAg at baseline and all the different time points during PegIFN-α treatment. Both univariate regression analyses and multivariate logistic regression analyses showed HBV-miR-3 is a predictor of HBeAg seroconversion in the patients treated with PegIFN-α at weeks of 0, 12, and 24. 70.0% of patients with HBV-miR-3＜3log at week 12 achieved HBeAg seroconversion, otherwise HBV-miR-3＞6log at week 12, no patient obtained. HBeAg seroconversion. Conbination of HBV-miR-3 and HBeAg is more strongly predictive of HBeAg seroconversion (83.64%) and obtained better AUC (0.784) at week 12
Conclusions: HBV-miR-3 is an indicator of HBV replication and positively related to HBV replication. HBV-miR-3 is a potential, novel and early predictor of HBeAg seroconversion in the patients treated with PegIFN-α.
Health literacy, knowledge of HIV/AIDS, and public stigma among general citizens of Japan: an online cross-sectional survey
Authors: Togari Taisuke , Abe Sakurako , Inoue Yoji
Published: September 2023

Background
This study aimed to clarify the relationship between health literacy, knowledge of human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS), and public stigma toward people living with HIV/AIDS (PLWH) in the general Japanese population.
Methods
We conducted an online cross-sectional survey targeting adults (age range: 20 s to 60 s) from among the 2.2 million registrants in Rakuten Insight from September 20 to 25, 2019. Stratified randomized sampling was performed by region, sex, and age. The study participants were 2,500 heterosexual HIV-negative adults with no acquaintances who were PLWH. Among these participants, 232 who provided incomplete responses were excluded, leaving 2,268 eligible for analysis (effective response rate: 90.7%).
Results
Models were compared using structural equation modeling for the relationship between health literacy (16-item version of the European Health Literacy Survey), basic knowledge about HIV/AIDS, public stigma toward HIV/AIDS, and social distance. The results indicated that health literacy scores mediated public stigma and were associated with social distance (standardized coefficient of indirect effect: –.157, p < .001). Knowledge of HIV/AIDS also affected social distance through public stigma (standardized coefficient of indirect effect: –.082, p < .001). The model fit was as follows: Tucker–Lewis index = 0.90, comparative fit index = 0.91, and root mean square error of approximation = 0.058.
Conclusions
These findings indicate that health literacy not only maintains and promotes individual health but also has the potential to reduce stigma toward HIV/AIDS and is more closely associated with less public stigma toward HIV/AIDS than knowledge of HIV/AIDS.