bluuebunny/crossref_metadata_2025 huggingface dataset:
Sistem Informasi Sewa Jasa Porter Dan Peralatan Untuk Pendakian Gunung Berbasis Web
Authors: Sutrisno Sutrisno , Nouvel Ahmad , Saputra Fendi Hidayat
Published: November 2024

AbstrakMendaki gunung adalah salah satu hobi yang banyak disukai orang, baik para pecinta alam maupun para pemula yang ingin mendekatkan diri dengan alam. Karena pendakian membutuhkan bayak kesiapan baik fisik, peralatan dan logistic yang di butuhkan untuk mendaki maka banyak pendaki yang membutuhkan jasa porter. Porter sangat mempunyai peran penting dalam pendakian untuk membawakan caril bawaan sekaligus sebagi teman dan pemandu gunung. Dengan adanya porter dapat memberikan rasa aman saat mendaki. Namun kurangnya informasi jasa porter dan tidak semua orang mempunyai peralatan pendakian membuat banyak orang kesulitan utuk memulai mendaki khususnya pendaki pemula. Oleh sebab itu dengan dibuatnya sistem informasi sewa jasa porter dan peralatan, mendaki gunung dapat memberikan kemudahan kepada para pendaki yang mencari sewa jasa porter dan peralatan pendakian. Dalam penelitian ini penulis menggunakan metode penelitian air terjun (waterfall) dengan menyediakan pendekatan alur hidup perangkat lunak secara sekuensial atau terurut dimulai dari, analis, desain, pengkodean, pengujian dan tahap pendukung (support). Dengan dibuatnya sewa jasa porter dan peralatan pendakian maka akan menciptakan ruang lingkup antara admin dan user (penyewa) yang dimana terdapat aktor yaitu porter Kata kunci: sistem informasi, mendaki gunung, sewa jasa porter, peralatan pendakian, waterfall AbstractMountain climbing is one of the hobbies that many people like, both nature lovers and beginners who want to get closer to nature. Because climbing requires a lot of physical readiness, equipment and logistics needed to climb, many climbers need porter services. Porters have a very important role in climbing to bring caril luggage as well as friends and mountain guides. With the porter can provide a sense of security when climbing. However, the lack of information on porter services and not everyone has climbing equipment makes it difficult for many people to start climbing, especially beginner climbers. Therefore, with the creation of an information system for renting porter services and equipment, mountain climbing can provide convenience to climbers who are looking for rental of porter services and climbing equipment. In this study, the authors use the waterfall research method by providing a sequential or sequential software lifeflow approach starting from the analysis, design, coding, testing and support stages. With the rental of porter services and climbing equipment, it will create a scope between the admin and the user (tenant) where there are actors, namely porters.Keywords: information system, mountain climbing, porter rental, climbing equipment, waterfall
Sistem Informasi Inventory Bahan Bangunan (SIABANG) Studi Kasus CV.Sinar Jaya Tangerang Menggunakan Metode Agile Extreme Programming
Authors: Rudiansyah Iis , Purnia Dini Silvi
Published: November 2024

CV.Sinar Jaya merupakan suatu badan usaha berupa toko bahan yang menjual alat dan bahan bangunan di Kedaung Wetan, di kota Tangerang. Dimana dalam menjalankan usaha masih menggunakan cara konvensional dan cara manual, antara lain pencatatan buku transaksi dengan Microsoft Excel dan pengelolaan data persediaan yang kurang baik, serta pencatatan informasi transaksi yang tidak lengkap sehingga mengakibatkan sering nya hilang data inventaris penting. Sehingga pemilik toko jelas tidak tahu kapan harus memesan barang yang mengakibatkan toko sering kali kehabisan stok dan tidak mampu memenuhi kebutuhan dan permintaan pelanggan. Berkaitan dengan hal - hal tersebut, prespektif penulis memiliki harapan dalam mengembangkan sebuah aplikasi inventory berbasis desktop dengan menggunakan metode Agile Extreme Programming agar dapat digunakan oleh CV.Sinar Jaya pada waktu mendatang, dalam rangka efisiensi pada proses pendataan barang masuk dan keluar serta membantu mempermudah dalam pembuatan laporan. Penulis memiliki harapan pada program yang ditawarkan merupakan solusi terbaik untuk menyelesaikan permasalahan di bidang ini.
Kesiapan Pengguna Learning Management System Pendidikan Anak Usia Dini Dengan Technology Readiness
Authors: Afiana Fiby Nur , Hariguna Taqwa , Oktaviana Lusi Dwi , Pribadi Prayoga , Fortuna Dewi , Saputri Seli , Aziz Muhammad Abdul
Published: November 2024

Learning Management System (LMS) telah banyak dijumpai di segala sektor pendidikan, namun konsep LMS pada pendidikan anak usia dini masih jarang ditemukan. Pendidikan anak usia dini merupakan ruang ekspresi yang dapat membantu proses perkembangan anak lebih optimal dengan tujuan membentuk anak yang berkualitas sebelum memasuki pendidikan formal. Pinggu adalah salah satu LMS yang berfokus pada pendidikan anak usia dini melalui berbagai macam assesment untuk menentukan minat dan bakat anak. Dengan melihat LMS untuk anak usia dini yang jarang ditemukan, maka sebelum LMS Pinggu dikembangkan untuk target pasar yang lebih luas perlu dilakukan suatu analisa untuk mengukur sejauh mana kesiapan pengguna dalam hal ini orang tua dan pendidik anak usia dini menggunakan LMS. TR (Technology Readiness) adalah Salah satu metode pengukuran tingkat kesiapan pengguna dengan empat variabel yaitu Optimism (Kepercayaan Umum), Innovativeness (Kecendrungan bereksperimen), Discomfokart (Kurangnya kontrol terhadap teknologi) dan Insecutity (Keyakinan). Hasil pengolahan data dengan menggunakan metode TR dan diolah menggunakan SmartPLS menunjukkan bahwa Optimism (Kepercayaan Umum), Innovativeness (Kecendrungan bereksperimen), Discomfokart (Kurangnya kontrol terhadap teknologi) dan Insecutity (Keyakinan) berpengaruh secara positif terhadap kesiapan pengguna. Hasil menunjukkan bahwa Discomfokart dan Insecutity tidak mempengeruhi niat pengguna secara negatif dalam menggunakan teknologi.               Kata kunci: Learning Management System, pendidikan, anak usia dini, Technology Readiness
Perancangan User Interface (UI) dan User Experince (UX) Aplikasi pendistribution alat-alat kesehatan pada perusahaan PT. Rekamileniumindo Selaras Jakarta Barat
Authors: Normah Normah , Sihaloho Friska
Published: November 2024

PT. Rekamileniumindo Selaras merupakan sebuah perusahaan yang bergerak pada bidang distributor alat-alat kesehatan Rumah Sakit, sudah sepantasnya memanfaatkan fasilitas sistem komputerisasi dan teknologi internet dalam mengolah informasi dan transaksi untuk kelancaran bisnis usahanya. Salah satu usaha peningkatan efektifitas kerja dalam hal ini dibutuhkan sebuah sistem aplikasi yang berbasis jaringan online dengan efisiensi penggunaan berbagai sumber daya dalam bentuk website. Saat ini PT. Rekamileniumindo Selaras memiliki masalah mengenai masih banyaknya pengguna atau rumah sakit yang mengalami kesulitan dalam menggunakan website untuk memesan alat kesehatan, ini dikarenakan kurangnya kemampuan dalam menggunakan teknologi dan masalah lainnya dari segi visual atau tampilan dari website pemesanan yang tidak menarik. Solusi untuk menyelesaikan  permasalahan yang sudah di sebutkan, adalah PT. Rekamileniumindo Selaras memerlukan pengembangan desain antar muka (user interface) yang baik untuk meningkatkan pengalaman pengguna (user experience). Dalam merancang website UI/UX distribusi alat kesehatan menggunakan metode User Centered   Design (UCD) yang merupakan konsep perancangan berpusat pada pengguna. Menjadikan perancangan desain user interface tak hanya berfokus hal estetika desain, namun juga memperhatikan pengalaman pengguna. Rancangan aplikasi pendistribusian alat-alat kesehatan ini memiliki dua buah tampilan pengguna yaitu Admin selaku pengelola data pada rancangan aplikasi distribusi dan pengguna selaku orang yang dapat mengakses website pendistribusian alat-alat kesehatan tersebut dimana Admin dapat kelola data pengiriman alat kesehatan, permintaan alat kesehatan, kelola alat kesehatan, pengelolaan kiriman dan konfirmasi pengiriman. Kata Kunci : User Interface (Ui), User Experience (Ux) Aplikasi Pendistribusian Alat-Alat Kesehatan
Studi Kasus Pengembangan dan Penggunaan Artificial Intelligence (AI) Sebagai Penunjang Kegiatan Masyarakat Indonesia
Authors: Wahyudi Tri
Published: November 2024

Artificial Intelligence (AI) adalah bidang multidisiplin yang bertujuan untuk mengotomatisasi aktivitas yang saat ini membutuhkan kecerdasan manusia. Manusia dan kecerdasan buatan dapat bekerja sama untuk membuat keputusan yang tidak terlalu dipengaruhi oleh nilai-nilai pribadi. Keberhasilan terbaru AI yaitu sistem yang secara otomatis menyesuaikan perangkat keras dengan kebutuhan pengguna tertentu.  Metodologi dalam penelitian ini adalah observasional. Selain itu, metodologi studi observasional digunakan. Penelitian kualitatif deskriptif berkonsentrasi pada identifikasi fitur atau karakteristik dari kejadian tertentu yang diperiksa selama proses pengumpulan data. Penelitian ini menggunakan pencarian literatur metodis pada database jurnal. . Jurnal dievaluasi ulang berdasarkan tanggal penerbitan, negara atau wilayah tempat objek penelitian dilakukan, dan strategi desain data berdasarkan penerapan kecerdasan buatan eksperimental.. Subbidang ilmu komputer yang disebut Artificial Intelligence difokuskan untuk menciptakan kecerdasan buatan yang memiliki pola pikir dan perilaku seperti manusia. AI dapat digunakan dalam pendidikan untuk memengaruhi moral dan karakter siswa, meningkatkan ketajaman mental mereka, dan memberi mereka wawasan baru. AI juga dapat digunakan dalam beberapa bidang seperti Kesehatan, ekonomi dan bidang pertanian (smart garden).               Kata kunci: Artificial Intellgence, AI Pendidikan, AI Kesehatan, AI Pertanian, AI Ekonomi
Pengembangan Sistem Informasi Posyandu (SIPANDU) Desa Slarang Lor Menggunakan Model Waterfall
Authors: Warjiyono Warjiyono , Ismail Alfaata Wafiq , Setyawan M. Dandi Nur , Firdaus Arifin Nurul , Al Ari Musa , Fandhilah Fandhilah
Published: November 2024

Peraturan Menteri Dalam Negeri Nomor 19 Tahun 2011 Tentang Pedoman Pengintegrasian Layanan Sosial Dasar di Pos Pelayanan Terpadu mengatakan bahwa Pos Pelayanan Terpadu (Posyandu) adalah layanan kesehatan yang dikelola dan diselenggarakan bersama masyarakat untuk memberikan pelayanan kesehatan dasar untuk mempercepat penurunan angka kematian ibu dan bayi. Posyandu ibu hamil dan balita diselenggarakan setiap bulan oleh kader posyandu seperti penimbangan, monitoring perkembangan gizi dan pemberian imunisasi. Posyandu Desa Slarang Lor saat ini masih menggunakan cara manual, pencatatan menggunakan buku besar. Masalah yang terjadi kesulitan saat mencari data, monitoring gizi apalagi jika ibu balita tidak membawa Kartu Menuju Sehat. Untuk itu perlunya dibangun posyandu Desa Slarang Lor untuk membantu kader posyandu dalam dan bidan desa dalam proses pencatatan dan pelaporan posyandu balita. Sistem ini dibuat menggunakan pendekatan System Development Life Cycle (SDLC) yaitu model waterfall. Pengumpulan data menggunakan wawancara, obseravasi dan studi pustaka. Sistem informasi posyandu Desa Slarang Lor dibuat menggunakan bahasa pemrograman PHP dan database menggunakan MySQL. Beberapa fitur yang disediakan diantaranya pendaftaran dan pembaruan data, pelaporan kesehatan, monitoring dan evaluasi, pengelolaan data peserta posyandu. Tujuan dari pengembangan sistem informasi posyandu Desa Slarang Lor adalah untuk meningkatkan pelayanan yang efisiensi dan efektivitas serta memudahkan dalam pengelolaan data, pelaporan, serta pemantauan kegiatan di Posyandu. Kata kunci: Sistem Informasi Posyandu, Desa Slarang Lor, Ibu hamil, Balita.
Perancangan Sistem Informasi Manajemen Distribusi Barang Pada CV Welas Asih Tasikmalaya Menggunakan Metode Prototype
Authors: Nugraha Wini Fadhilah , Adiwisastra Miftah Farid , Bahri Saeful
Published: November 2024

Perkembangan teknologi saat ini berkembang sangat pesat dengan melalui berbagai perangkat dan teknologi yang baru, dengan itu dalam penggunaan teknologi informasi yang sudah terkomputerisasi dapat membantu perusahaan dalam memberikan layanan informasi yang lebih baik serta dapat memberikan kualitas informasi yang lebih akurat. CV Welas Asih merupakan perusahaan yang bergerak di bidang produksi pakaian sports. Dalam pengolahan data barang distribusi masih menggunakan sistem yang manual, sehingga dalam proses pengelolaan data distribusi sering menimbulkan kesalahan dalam pencatatan data, tidak akuratnya jumlah stok barang dan sering terlambatnya pembuatan laporan dikarenakan data-data belum terorganisir dengan baik. Tujuan dari penelitian ini adalah merancang Sistem Informasi Manajemen Distribusi Barang agar dapat memberikan kemudahan bagi perusahaan dalam mendapatkan atau memberikan informasi yang cepat dan akurat. Metode pengembangan perangkat lunak pada penelitian ini menggunakan metode Prototype. Hasil akhir penelitian ini yaitu dapat membantu perusahaan dalam mengelola data distribusi, pencatatan data, pencarian jumlah stok barang serta pembuatan laporan yang secara otomatis tercetak pada sistem. Selain itu sistem dapat mempermudah mitra dalam melakukan permintaan barang dan mengetahui status permintaan.               Kata kunci: Distribusi Barang, Permintaan Barang, Metode Prototype
Penerapan Metode Pieces Framework Sebagai Evaluasi Tingkat Kepuasan Pengguna Aplikasi Tokopedia
Authors: Ilham Ilham , Suparni Suparni , Kaafi Ahmad Al , Rachmi Hilda
Published: November 2024

Sejak munculnya pandemi Covid-19, persaingan platform e-commerce semakin sengit, dan akibatnya banyak bisnis e-commerce saat ini menghadapi peluang dan bahaya internal dan eksternal. Aplikasi Tokopedia sudah menerima banyak keluhan dari pelanggannya menunjukkan bahwa masih banyak yang harus diperbaiki pihak Tokopedia untuk terus memberikan pelayanan yang maksimal kepada konsumennya. Apabila hal ini tidak diperbaiki akan banyak konsumen yang beralih ke aplikasi e-commerce lainnya. Penelitian ini bertujuan untuk mengukur hubungan Evaluasi Kinerja Sistem dengan menggunakan metode PIECES framework yang meliputi 6 variabel yaitu : (Performance, information, Economics, Control & Security, Efficiency, dan Service) terhadap Aplikasi E- commerce Tokopedia, yang bertujuan untuk mengetahui tingkat Kinerja Sistem Aplikasi dari sisi kelemahan, kekuatan dan menganalisis komponen apa saja yang perlu ditingkatkan Kinerjanya. Penelitian ini menggunakan metode PIECES framework dalam menganalisis data, penggunaan metode PIECES framework sangat cocok dalam menganalisis setiap variabel sistem yang diteliti karena bisa memberikan hasil nyata terhadap efektivitas sistem yang digunakan perusahaan. Kepuasan Pengguna terhadap layanan berbasis aplikasi mobile diukur dengan kerangka kerja PIECES framework untuk mengetahui tingkat kepuasan pengguna terhadap layanan. Hasil dari penelitian yang menggunakan kerangka kerja PIECES framework menghasilkan skor rata-rata 3,96 dengan skala likert. Maka pengguna layanan dikategorikan PUAS terhadap layanan sistem informasi aplikasi Tokopedia di wilayah Tomang Jakarta Barat RT002 RW015.Kata kunci: Tokopedia, PIECES framework, Kepuasan pengguna, Skala likert, Sistem informasi
Penggunaan Metode MECUE 2.0 Dalam Mengukur User Experience Pada Aplikasi MAXIM
Authors: Joosten Joosten , Halim Fandi , Pasaribu Debora Marturia Br , Panjaitan Nurapni Aprianti Br
Published: November 2024

Maxim merupakan layanan order transportasi online yang digunakan untuk memenuhi kebutuhan para pelanggan dengan menggunakan aplikasi Playstore dan Appstore. Di era modern ini transportasi berbasis aplikasi dengan menggunakan media internet yang menawarkan berbagai hal baru yang berbeda dengan jasa transportasi pada umumnya. Kemudahan kepada masyarakat dalam melakukan perjalanan. Berdasarkan hasil observasi penelitian terhadap penilaian aplikasi Maxim pada playstore, masih ada tanggapan Sebagian pengguna yang belum puas terhadap penggunaan aplikasi tersebut. Penelitian ini bertujuan untuk melakukan pengukuran user experience dengan menggunakan metode meCUE 2.0 yang memiliki 5 module dengan 10 Instrument penilaian, yaitu Module I (Perception of Instrumental Product Qualities), Module II (Perception of non-instrumental product qualities), Module III (Emotions), Module IV (Consequences), Module V (Overall evaluation). Pengumpulan data dilakukan  dengan cara menyebarkan kuesioner online dengan alat bantu google form menggunakan metode meCUE kepada 108 responden dengan Instrument penilaian yaitu Kegunaan ( Usefulness) dengan nilai rata rata 5,33, Kegunaan (Usability) dengan nilai rata-rata 5,00. Estetika  visual (Visual Aesthetics) nilai rata- rata ada 4,33, Status (Status) nilai rata-rata adalah 4,00, Komitmen (Commitment) nilai rata-rata adalah 2,67, Emosi Positif (Positive emotions) nilai rata-rata adalah 5,00, Negative (Negative emotions) nilai rata-rata adalah 2,67, Niat untuk mengguankan (Intention to use) nilai rata-rata adalah 3,67, Loyalitas produk (Product Loyality) nilai rata-rata adalah 3,67, Evaluasi Keseluruhan (Overall Evaluation) nilai rata-rata adalah 3,00. Dengan disimpulkan bahwa aplikasi mobile layanan transportasi Maxim dengan menggunakan metode meCUE 2.0 penilaiannya menunjukkan hasil yang postif untuk Sepuluh instrument penilainnya dinyatakan “cukup baik”
Perancangan Knowledge Management System Untuk Mendukung Pengetahuan Antar Dosen Institut Daarul Qur'an Jakarta
Authors: Adityarini Esthi
Published: November 2024

Dalam perkembangannya, ilmu pengetahuan dan juga teknologi merupakan suatu proses yang berkembang begitu pesat dan dinamis, yang telah mengubah banyak aspek kehidupan manusia. Perkembangan tersebut juga relevan bagi institusi Pendidikan. Dosen merupakan salah satu unsur penting yang menjadi sumber daya manusia di perguruan tinggi. Knowledge yang dimiliki setiap dosen adalah aset bagi sebuah perguruan tinggi. Penelitian ini bertujuan untuk membuat rancangan knowledge management system yang berfungsi untuk berbagi pengetahuan yang dimiliki antar dosen. Kendala yang dihadapi saat ini adalah tacit knowledge dan expicit knowledge yang dimiliki dosen hanya tersimpan secara individu saja dari berbagai kegiatan seperti seminar, workshop maupun studi banding. Dan belum ada wadah untuk berbagi pengetahuan yang dimiliki satu dosen untuk disebarluaskan dengan dosen lain. Metode penelitian ini menggunakan kerangka kerja Tiwana dengan teknik pengujian User Acceptance Test (UAT). Hasil penelitian ini adalah akan diperoleh rancangan Knowledge Management System dengan hasil pengujian 90% dengan hasil Sangat Baik, untuk mendukung berbagi pengetahuan antar dosen di Institut Daarul Qur'an Jakarta.   Kata kunci: Knowledge Management System, Model Tiwana, UAT
Transport of particles in a model of 2D Rayleigh-Benard convection that conserves energy and vorticity
Authors: Becerril Bárcenas Ricardo , Maya M.
Published: November 2024

In contrast with the Lorenz model for 2-dimensional Rayleigh - Bénard system, the model proposed by Howard - Krishnamurti (HK) allows the possibility of a large scale horizontally shear flow making feasible the study of particles transport. However, this model lacks conservation of energy and vorticity in the absence of forcing and dissipation. A model that incorporates conservation of energy and vorticity was proposed by A. Gluhovsky et al (GTA). We perform the linear stability analysis of this later model and study the transport process on this velocity field background and make a comparison with the features of the former model. We found that the basic bifurcation structure is retained by the GTA model and discuss the differences that they indeed have. In regard to the transport processes, the basic features found using the HK velocity field background are also kept by the GTA model. We determine the size of the rather small gap in the Rayleigh number where the transport process shift from being shear flow dominated to a Brownian diffusion process.
Numerical Investigation of G–V Measurements of metal – A Nitride GaAs junction
Authors: Ziane A. , Rabehi Abdelaziz , Rouabhia A. , Amrani M. , Douara A. , Dabou R. , Necaibia A. , Mostefaoui M. , Sahouane N.
Published: November 2024

In this study, a Schottky diode consisting of Au/GaN/GaAs was fabricated using a radiofrequency nitrogen plasma source. The voltage-conductance characteristics (G/ω-V) of this diode structure were investigated at room temperature.
To interpret the changes in the electrical properties of the nitrided GaAs-based Schottky structure, we developed a simulation program. This program employs a numerical model to calculate the G-V characteristics, allowing us to validate the experimental measurements conducted on the Schottky diodes.
The geometric model used in our simulation considers not only the GaN layer formed between the metal and GaAs substrate but also the density and distribution of trapped states within the band gap. The program utilizes the numerical resolution of the Poisson and continuity equations to calculate the electrostatic potential and the concentrations of both n and p mobile carriers. These parameters are then used to determine the electric charge, current, capacitance, and conductance. The simulation results were subsequently compared to the experimental measurements to ensure their accuracy.
MYTHOPOETICS OF THE POSTMODERNIST NOVEL: AT THE LEVEL OF STRUCTURAL-COMPOSITIONAL PROPERTIES
Authors: Abdullayeva Yegana Atamoglan
Published: November 2024

The postmodernist novel is an original genre modification of the late 20th-21st century postmodernist trend in world literature, which differs in its unique content, form and functional characteristics in the metatext space. The typological specificity of the postmodernist novel, which combines universal and specific features, is characterized by a dialogue with the historical past. Postmodernist novel revives mythopoetic thought and context, archetype-plot and archetype-images become relevant in such novels, mythologems manifest themselves in the form of plot, motif or image. In the article, the interaction and unity of the archetype-plot and archetype-image division is revealed and analyzed as the poetics of the postmodernist novel. The author of the article studies the postmodernist novel as a unique type of incitement in terms of structure-composition and content, and draws the myths and mythologems involved in the text into the object of investigation.
Experimental studies of thermo-mechanical characteristics of nitinol alloy springs
Authors: Kozyrskyi V. , Bunko V.
Published: November 2024

The article deals with the research of heat-sensitive elements based on Nitinol material - a wire with a diameter of 1.0 mm, which in the form of springs can potentially be used with the appropriate geometric parameters in the design of a heat engine of an electric power generation system. Research allows to determine the thermomechanical characteristics of springs from this alloy, namely the study of the influence of the magnitude of the preliminary deformation of such elements on the generated force. Heat hardening of the nitinol wire was carried out at a temperature of 400 to 500 °C for 4.5 hours. The study of thermomechanical characteristics was carried out when heating a thermosensitive element (spring) in water from a temperature of 20 °C to 100 °C, force measurements were performed with a spring dynamometer. Thermosensitive elements - two springs made of Nitinol alloy - were chosen for research in this work. The paper shows the model and general view of the experimental setup for the knowledge of thermomechanical characteristics of springs.

The thermomechanical characteristics of the springs at different amounts of their deformation have been constructed. Graphs are presented that show that the functional dependence of the maximum generated force on the amount of spring deformation is close to linear. The interpolation method was used in the work, the corresponding coefficients were calculated and the functional dependence was constructed. The resulting dependence allows you to increase the limits of determining the maximum generated force from the amount of spring deformation and will be necessary when modeling the characteristics of a heat engine.

Experimental studies have established that a significant influence on the amount of force generated by a spring made of Nitinol alloy is determined by the amount of spring deformation. At a spring deformation of 160 mm and a temperature of 100 oC, the generated force was 4...4.05 N, and at a deformation of 100 mm - 1.75...1.85 N.
Vision Disturbance (not vision loss) following Epinephrine Injection
Authors: Frietsch T
Published: November 2024

Patients with severe acute respiratory distress syndrome require supportive treatment with mechanical ventilation with or without extracorporeal membrane oxygenation to maintain optimal oxygenation. Persistent inefficient blood oxygenation can be related to severity of clinical presentation, technical issues, or concomitant diseases. In this case report, man previously suffering from chronic myeloid leukemia received extracorporeal membrane oxygenation for influenza A virus subtype H1N1. Despite invasive oxygenation therapy, it was not possible to achieve amelioration of arterial blood oxygenation. After a differential diagnosis, pathological hyperleukocytosis was identified as a potential reason of oxygenation impairment, which improved after introduction of concomitant chemotherapy that lowered leukocytes count.
Surgical Management and Prophylactic Antibiotic Treatment of Pneumatic Nailer Penetrating Brain Injury: a Case Report and Literature Review
Authors: Jang Yu Chien-Min Lin and
Published: November 2024

Penetrating traumatic brain injury (pTBI) can lead to high mortality and life-threatening complications. The thorough examination and proper treatment are required. A 30-year-old man suffered from the pTBI during work, and the non-contrast computed tomography (CT) scan was revealed the metallic rod penetrated the right temporal skull and extended into the right inferior temporal gyrus, accompanied by subarachnoid hemorrhage. After diagnosis, a right frontotemporal craniotomy with intracranial nail extraction was performed, and prophylactic antibiotics were prescribed. The patient's symptoms resolved, and he was discharged without focal neurological deficits.
Overview of Uterine Fibroid Treatment Procedures; Review Article
Authors: Pietras Joanna
Published: November 2024

Myomas are benign uterine tumours found in 40-70% of women of reproductive age. About 30% of them cause various ailments (bleeding, pain, infertility) that reduce the quality of women’s life. Uterine fibromas are the cause of 40-60% of hysterectomies. Different treatment methods are used depending on the size, number, location of myomas and the patient's preferences. Conservative treatment includes nonsteroidal anti-inflammatory drugs, hormonal therapies as contraceptives, GnRH agonists or antagonists, selective progesterone receptor modulators and levonorgestrel. Radiologic intervention types include are UAE (uterine artery embolization), high-intensity focused ultrasound (HIFU), magnetic resonance (MRgFUS), and radiofrequency ablation (RFA). There are also more radical methods, namely surgical treatments, such as myomectomy (hysteroscopic, laparoscopic, robotic or abdominal) and hysterectomy. The oldest of methods is abdominal hysterectomy, while in some women, vaginal hysterectomy can be applied. Recently, laparoscopic or robotic hysterectomy (using the da Vinci robot) has been used. The latter procedures are associated with a better quality of life following treatment.
Resolution of Non-Diabetic Intractable Wounds with Severe Comorbidities Using Autologous Micrografts
Authors: Paolin Elisa
Published: November 2024

The wound healing process is a complex mechanism related to many factors, such as the patient’s comorbidity, blood flow, and nutritional status. This study aimed to retrospectively evaluate patients affected by various disease states and treated with Rigenera® technology, a standardized micrograft preparation system. A total of 8 patients were treated with a suspension of autologous micrografts obtained from mechanical disaggregation of small pieces of skin tissue. The micrografts suspension was applied alone to the wound or in combination with porcine collagen scaffolds directly onto the wound as described in the text. Across all cases, there was marked improvement in wound healing, with a mean healing time of 103 days and a reduction of the diameter of the wounds by 54%. Notably, the use of micrografts resulted in an overall higher quality of life for the patients. This simple and low-cost micrografting procedure that can promote wound healing of different kinds of chronic non-healing wounds and does not require postoperative rest.
Angiotensin Receptors and Neprilysin Inhibitors on Myocardial Remodeling in Patients with Acute Myocardial Infarction after Percutaneous Coronary Intervention
Authors: Xu Yan Min
Published: November 2024

Heart failure (HF) is a leading cause of late morbidity and mortality after acute myocardial infarction worldwide. Myocardial remodeling is an important mechanism in the development of chronic heart failure. Development of the HF phenotype in these patients arise from a complex, progressive, molecular and cellular transformation called “ventricular remodeling”. In this paper, the research progress of myocardial remodeling is summarized. Left ventricular remodeling is characterized by a progressive increase in both end-diastolic (LVEDV) and end-systolic volumes (LVESV). Cardium remodeling is due to an increased activity of cardiac fibroblasts in response to different soluble fibrogenic mediators. ARNI can inhibit the biological activity of brain natriuretic peptide enzyme, prevent the deactivation of natriuretic peptide and increase its concentration. The inhibition of brain natriuretic peptidase and the increase of natriuretic peptide level by ARNI is an important means to treat heart failure and fight against ventricular remodeling, and the inhibition of RAAS system over activation is also of great significance to delay myocardial remodeling. much of the observed clinical benefit of sacubitril/valsartan therapy in patients with HFrEF, HFpEF and in the post-myocardial infarction setting is likely related to significant reverse cardiac remodeling.
Krukenberg tumor: a systematic overview of its origin
Authors: Bakry Malik Abrar
Published: November 2024

The incidence of krukenburg tumor is increasing among other secondary ovarian cancers, yet many aspects are still not well understood. In this review, we present a group of secondary ovarian malignant cell sources after we have labeled each subset under the system to which they belong. Also, we talked about the statistics that have been documented for different origins, and how invasive cells reach the ovaries. However, knowledge of these concepts may be involved in developing innovative treatments or even dedicating existing methods to obtain best possible results.
Biosilk bilayered scaffold Application in Wound bed Preparation of Thermal Burns Wound
Authors: Chittoria Ravi Kumar
Published: November 2024

Haemostasis, inflammation, proliferation, and remodelling are the steps that comprise the complex biological process of wound healing. Chronic wounds often remain static in the inflammatory stage of wound healing beyond the expected duration and resist healing. Biosilk or biomodified silk dressing is believed to aid in accelerating the wound healing process. The combination bio functionalised silk matrix with silver oxide and Centella asiatica, a medicinal plant with wound healing properties, has been found to be effective in managing chronic non-healing wounds.
Knowledge, Attitude and Practice of Food Handlers Toward Food-Borne Infections; A Survey During War
Authors: Malik Abrar Bakry
Published: November 2024

Background: food safety knowledge attitude and practice among food handlers during war catastrophe are important measures in the prevention of food borne diseases outbreaks. Aim: to assess knowledge attitude and practice of food handlers toward food borne infections. Method: a cross-sectional descriptive observational study was conducted within one months. It involved 36 food handlers in different positions. Total sampling was done. Data were collected by interview-based questionnaire and analyzed by SPSS version 27.0. Results: the total score of the employee’s level of knowledge was (414 / 63.8%) points which indicate moderate level. The score of attitudes was (253 / 63.8%) points that reported moderate level of attitude also. (497 / 23%) points were scored for the practice, and poor level was showed. Conclusion: Ministry of health should consider these factors for enhancing food handlers’ knowledge and increase training and supervision on food safety practices to reduce foodborne diseases and outbreaks.
Innovative Management of Congenital Hereditary Spherocytosis: Combined Laparoscopic Cholecystectomy and Splenectomy in A Paediatric Patient
Authors: Karavdić K.
Published: November 2024

Congenital Hereditary Spherocytosis (CHS) is an inherited dysfunction or a deficiency in one of the erythrocyte membrane proteins. It is an inherited form of haemolytic anaemia which is noted by the presence of spherical erythrocytes. This leads to increased fragility and haemolysis. This case report is based on an 8-year old girl with CHS. She presented with acute abdominal symptoms and was subsequently managed with a combined cholecystectomy and splenectomy. This strategy seeks to address both the frequent haemolytic crises and the presence of gallstones, ultimately providing an extensive management strategy for paediatric patients with CHS.
Relationship Between Distributive Justice and Employees' Affective Commitment: The Moderating Effects of LMX
Authors: Sadaf Sobia , Jahangir Shahida
Published: November 2024

The current study explores the effect of LMX and DJ on employees' affective commitment. Significant research has been conducted on the relationship between distributive justice and workplace outcomes. However, limited research has delved into potential moderators of this relationship, specifically in the context of the telecom sector of Pakistan. This study fills this gap by investigating how LMX might influence the relationship between distributive justice and affective commitment as a moderator. Two hundred fifty employed individuals from the telecom sector of Sahiwal, Pakistan, participated in this survey. Data was analyzed using SPSS-24. The results from the analysis supported the study's hypotheses. The results regarding the direct relationship between DJ and AC are in line with existing literature. Additionally, LMX significantly moderated the relationship between the independent and dependent variables. Based on these findings, theoretical and practical implications are proposed. Limitations and future research directions are also discussed.
Surgical anatomy of the carotid sympathetic plexus in endoscopic endonasal approaches: strategies for preventing Horner syndrome
Authors: Xu Yuanzhi , Arifianto Muhammad Reza , Lee Christine K. , Cohen-Gadol Aaron A. , Fernandez-Miranda Juan C.
Published: November 2024

OBJECTIVE

Endoscopic endonasal approaches (EEAs) specifically for procedures involving manipulation of the internal carotid artery (ICA), such as the transcavernous and translacerum approaches, confer a potential risk of carotid sympathetic plexus injury, potentially leading to postganglionic Horner syndrome. The primary aim of this study was to delineate the surgical anatomy of the carotid sympathetic plexus from an endoscopic endonasal perspective, offering insights to facilitate intraoperative anatomical identification and injury prevention.

METHODS

A comprehensive dissection was conducted on 20 silicone-injected, lightly embalmed postmortem human heads. The segments, patterns, and surgical landmarks of the carotid sympathetic plexus were investigated in a stepwise manner. In addition, 3 illustrative cases highlighting the involvement of the carotid sympathetic plexus in EEAs are included to contextualize the anatomical findings.

RESULTS

The carotid sympathetic plexus can be categorized into 3 segments: 1) the cavernous sinus (CS) segment, beginning at the upper surface of the petrolingual ligament and ascending anterosuperiorly along the inferior compartment of the CS (mean ± SD length 5 ± 0.5 mm); 2) the lacerum segment, starting at the exit of the petrous carotid canal and ascending laterally and vertically to the upper surface of the petrolingual ligament (mean ± SD length 10 ± 1 mm); and 3) the petrous segment, originating at the external opening of the carotid canal and terminating at the foramen lacerum (mean ± SD length 18 ± 1 mm). Two primary morphological patterns of the sympathetic plexus at the CS and lacerum segments were identified: a plexus-like pattern in 12 (30%) hemispheres, and a nerve-like pattern that was subcategorized as double (18 [45%] hemispheres) or single (10 [25%] hemispheres) trunks. Surgical strategies emphasize the importance of recognizing key landmarks when approaching the carotid sympathetic plexus, including the pterygosphenoidal triangle, lingual process, petrolingual ligament, lateral parasellar ligament, and abducens nerve.

CONCLUSIONS

This article provides a comprehensive anatomical description of the carotid sympathetic plexus in EEAs, highlighting key anatomical segments and patterns for intraoperative identification. A better understanding of anatomical landmarks for the carotid sympathetic plexus could help reduce the incidence of postganglionic Horner syndrome, augmenting the safety and efficacy of endoscopic endonasal transcavernous surgery.
Effect of early tethered cord release on urodynamic findings and lower urinary tract function in myelomeningocele patients
Authors: Ozaki Dan , Kimiwada Tomomi , Hayashi Toshiaki , Honta Takeyoshi , Eriguchi Tomohiro , Takeda Shinako , Sakai Kiyohide , Shirane Reizo , Endo Hidenori
Published: November 2024

OBJECTIVE

Detecting neurological deterioration and diagnosing tethered cord syndrome (TCS) in patients with myelomeningocele (MMC) can be challenging due to the presence of symptoms at birth and the lack of objective indicators. This retrospective analysis focused on urological manifestations and evaluated whether tethered cord release (TCR) for TCS at an early stage could improve or stabilize video urodynamic study (VUDS) findings and lower urinary tract function.

METHODS

This study analyzed 55 of 64 children who underwent MMC repair at Miyagi Children’s Hospital, Sendai, Japan, between 2003 and 2016. The follow-up duration for these children exceeded 6 years. Clinical records were reviewed, and surgical indicators and outcomes of TCR and preoperative and postoperative results of VUDS were evaluated.

RESULTS

The duration of follow-up was mean ± SD (range) 12.6 ± 3.5 (6.0–19.0) years. TCR was performed on 27 (49.1%) of 55 patients with MMC, totaling 33 procedures. Five patients underwent 2 TCR procedures, whereas 1 received 3 TCR procedures. The mean ± SD (range) age was 7.5 ± 2.9 (2.2–12.7) years at the first TCR procedure (n = 27) and the mean (range) was 10.9 (10.1–11.7) years at the second TCR (n = 5); in addition, 1 patient underwent a third TCR procedure at age 15.9 years. There were no identified risk factors associated with the TCS. The first TCR procedure was performed due to worsened lower-extremity (LE) motor symptoms in 1 patient, worsened LE sensory symptoms in 3 patients, and worsened VUDS findings in 26 patients. After the procedure, LE motor symptoms improved in 1 patient (100%), LE sensory symptoms improved in 2 patients (66.7%), and VUDS findings improved in 18 patients (66.7%). Preoperative VUDS revealed urological deterioration characterized by a high-pressure bladder, reduced bladder capacity, increased detrusor overactivity (DO), and vesicoureteral reflux. Postoperative VUDS showed improvements in bladder function, including decreased bladder pressure and DO, increased bladder capacity, and compliance. None of the patients underwent augmentation cystoplasty or had renal dysfunction.

CONCLUSIONS

Routine VUDS can detect urological deterioration, which can be a significant indicator for early diagnosis of TCS. Performing TCR at an early stage is beneficial, not only to protect renal function but also to improve VUDS findings and lower urinary tract function in patients with MMC. It is important to explore a standardized approach for the diagnosis and treatment of TCS.
Caregiver-reported satisfaction with pediatric movement disorder surgery
Authors: Dalmage Mahalia , Lai Celeste , Misasi Jennifer , Lehmann Isabel , Raskin Jeffrey S.
Published: November 2024

OBJECTIVE

Patient- and surrogate-reported outcomes are increasingly recognized as important and historically limited dimensions of satisfaction with medical care. Evaluating caregiver satisfaction for cerebral palsy (CP) patients with pediatric movement disorders (PMDs) remains undefined, limited by a lack of appropriate tools and the heterogeneity of the patient population. The authors identified caregiver satisfaction with the neurosurgical management of PMDs as a key quality metric and report their results across an institutional experience.

METHODS

A retrospective single-institution survey study was performed on caregivers of consecutive children who underwent PMD surgery from March 2022 to December 2023. The authors designed a brief 4-question satisfaction survey with dichotomous yes/no answers. The telephone survey solicited answers from primary caregivers, and contact attempts were made 3 times before labeling a nonresponder. Non–English speakers were included. The survey answers were correlated with demographic characteristics, clinical data, and complications. Descriptive statistics were performed using Excel.

RESULTS

Seventy patients were identified in the study period with 50 associated caregivers voluntarily responding to the questionnaire (50/70 [71.4%]). Forty-six male and 24 female patients with a mean (range) age of 13.1 (2–34) years and a follow-up range of 3–20 months were included. All 50 caregivers reported satisfaction with the surgical care their child received: 100% confirmed they would refer others to the program and 94% confirmed that they would have the surgery again in retrospect. Ten caregivers (10/50 [20%]) recalled complications, but only 5 (5/50 [10%]) surgical complications resulted in hospital readmission.

CONCLUSIONS

Caregivers were overwhelmingly satisfied with the neurosurgical care for PMDs and would recommend the functional pediatric neurosurgery program to others. A large percentage would again submit to the surgery. There is a perception disparity between caregiver- and hospital-identified complications; it may be beneficial to emphasize expected adverse effects with caregivers prior to surgery. Caregiver satisfaction remains an important quality dimension and future research may benefit from more objective metrics.
Utility of the turn-back supporting technique using a steerable intermediate catheter: illustrative case
Authors: Hara Takeshi , Ishii Daizo , Kondo Hiroshi , Kuwabara Masashi , Yamamoto Yusuke , Horie Nobutaka
Published: November 2024

BACKGROUND

Selective shunt occlusion (SSO) for intracranial dural arteriovenous fistulas (DAVFs) is a safe and effective method that directly intercepts the shunted pouch from the affected sinus with minimal materials. However, it can be challenging to obliterate the shunted pouch if the microcatheter is not supported adequately.

OBSERVATIONS

A 68-year-old woman presented with tinnitus and was diagnosed with multiple shunted DAVFs in the right transverse-sigmoid sinus (TSS) and the superior sagittal sinus (SSS). Although the entire sinus packing of the right TSS was performed, a follow-up angiography 7 months later revealed significant cerebral venous reflux due to occlusion of the left TSS and an increasing residual shunt flow in the venous pouch at the confluence of the SSS. A guiding catheter was introduced into the isolated sinus transvenously. Then, a steerable intermediate catheter (SIC) was manually steered into a hairpin shape and hooked on near the pouch prior to navigating a microcatheter into the fistula point. Finally, the fistula pouch was completely obliterated using only two coils under the adequate support of the turned-back intermediate catheter.

LESSONS

The turn-back supporting technique using an SIC was useful in achieving SSO for DAVFs, providing both adequate support and guidance for the coaxial microcatheter.

https://thejns.org/doi/10.3171/CASE24467
Alien plant species from the Lamiaceae family new to the flora of Sakhalin Island
Authors: Lozhnikova O. O.
Published: November 2024

The article provides data on two plant species and one hybrid, all from the family Lamiaceae, new to the flora of Sakhalin Island, collected by us in 2023:Melissa officinalisL.,Mentha × piperitaL. andOriganum vulgareL. The revealed species are ergasiophygophytes and colonophytes.Melissa officinalisandO. vulgareare also new genera to the flora of the island.
Rhodopsin Project
Authors: Ostrovsky M. A.
Published: November 2024

The review examines the history of the emergence, development, and achievements of the Rhodopsin project, organized by Yu.A. Ovchinnikov in 1973. The current state of some issues related to the structure and function of retinal-containing proteins – types I and II rhodopsins – is also presented.
On the evolution of the shock waves systems created by the fan blades
Authors: Yudin M. A. , Kopiev V. F. , Chernyshev S. A. , Faranosov G. A. , Demyanov M. A. , Bychkov O. P.
Published: November 2024

Fan is one of the noise sources in a modern engine. The fan noise is especially noticeable during takeoff at high angular rotation speeds. In such operating modes, supersonic flow around the tips of the fan blades is realized, which leads to the formation of shock waves that propagate upstream until they exit of the engine channel. As a result, a specific noise is emitted into the front hemisphere, consisting of harmonics that are multiples of the fan rotation frequency. The paper analyzes the described effect based on a simple model of the propagation of a shock waves system. By using energy analysis, it is shown that the system of shock waves with equal amplitude decays faster than a system of shock waves with a spread in amplitude.
Holographic method of under-water noise source localization in shallow water
Authors: Glushchenko M. Yu. , Kuzkin V. M. , Matvienko Yu. V. , Pereselkov S. A. , Khvorostov Yu. A. , Tkachenko S. A.
Published: November 2024

The results of a high-frequency experiment for the detection and direction estimation of underwater sound noisy source are presented. The experiment was conducted in the shallow waters of the Black Sea coast. The noise emission of the source was received by three vector-scalar receivers located on the bottom. By using holographic processing, the detection and direction estimation of a moving underwater source against the background of intense shipping in the experiment region were carried out. Estimates of the input signal-to-noise ratio are presented.
On the accuracy of distance estimates by propagation time of sound signals on the arctic shelf
Authors: Nazarenko Yu. V. , Sidorov D. D. , Petnikov V. G. , Pisarev S. V. , Lunkov A. A.
Published: November 2024

As part of numerical modeling, estimates are made of the accuracy of determining the distance between underwater sources and sound receivers located at a distance of several kilometers from each other in the Kara Sea in the autumn. It is assumed that the main source of possible errors in determining the distance is the lack of accurate data on the vertical profile of the sound speed along the propagation path of acoustic signals. Data from September and November were analyzed, in the interval between which significant changes in the profile take place, when the vertical gradient of sound speed changes from negative to positive values. Characteristic values of sound speed variations were obtained by statistical processing of hydrological data taken from the World Ocean Database. The results obtained are important for analyzing the capabilities of underwater acoustic navigation.