1,720,970 research outputs found
Development of Simple Control System for a Negative Pressure Wound Therapy Device
Full text linkDiabetic ulcers are wounds found on the legs of diabetic patients. Improper treatment opens the risk of complications like sepsis and osteomyelitis. A notable method of treatment is through a Negative Pressure Wound Therapy (NPWT) device. This device helps ulcer recovery by removing exudate, increasing blood flow, and promoting cellular proliferation via negative pressure. The objective of this study is to increase the local content of an affordable and effective method of diabetic ulcer therapy by developing a simple, low-cost NPWT prototype. This was achieved by using an Arduino UNO microcontroller, which included PID controls, an MPXV4115VC6U sensor reading function, an in-built timer, two modes, and an alarm system. The resulting prototype was calibrated before testing to reduce error rates. Testing was conducted using a Gas Flow Analyzer and an ulcer wound phantom. Negative pressure settings of 75, 85, and 125 mmHg were used for testing and were conducted on both modes for 30 minutes each. From these tests, it was found that the prototype could reach the negative pressure thresholds with minimal average error of at most -1.81%. With a wound phantom, the average error was -0.56% and -0.20% for the continuous and intermittent modes respectively. This small variance is negligible because NPWT therapy has a wide range of acceptable negative pressure, namely 60-80 mmHg and 80-125 mmHg, depending on wound type. In conclusion, a simple Arduino UNO-based system can function as an NPWT therapy device to aid diabetic ulcer recovery with minimal error
Desain Arsitektur Sistem Pemantauan Tanda Vital dan Postur Bayi Berbasis Wearable dalam Pencegahan Kejadian Bayi Mati Mendadak
Full text linkSudden infant death syndrome atau SIDS adalah kematian mendadak pada bayi sehat berusia di bawah 1 tahun yang terjadi secara tidak terduga dimana faktor risiko SIDS yang diidentifikasi dalam studi epidemiologi adalah posisi tengkurap dan miring untuk tidur bayi, paparan asap, alas tidur dan permukaan tidur yang empuk dan suhu ruangan terlalu dingin atau terlalu panas. Salah satu cara paling utama untuk menimalisir faktor resiko kematian bayi mendadak melalui pemantauan secara real-time terhadap kondisi kesehatan bayi. Pada makalah ini dibahas desain arsitektur untuk sebuah rancangan pengembangan sistem pemantauan tanda vital dan postur bayi berbasis teknologi wearable untuk mendeteksi kejadian dini SIDS yang membantu mendukung pengasuh untuk mengambil keputusan preventif SIDS. Desain arsitektur meliputi pembahasan dari lapisan-lapisan sistem maupun alur komunikasi antar lapisan. Kemudian dibahas juga teknik deteksi untuk postur berdasarkan akselerometer dan citra dan teknik deteksi perburukan kondisi bayi menggunakan pediatrik rothman indeks yang dirancang khusus untuk subjek bayi. Desain ini diharapkan dapat meningkatkan efektifitas solusi sistem pemantauan tanda vital bayi, dimana desain sistem ini dapat meminimalisir resiko faktor SIDS
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Peluang Kompetensi Clinical Engineering untuk Meningkatkan Prospek Kerja Lulusan Program Studi Teknik Biomedik di Indonesia
Full text linkIn Indonesia, the clinical engineering sector is crucial for advancing healthcare services, yet the integration of university curricula with industry demands remains suboptimal. This mismatch between educational offerings and market needs has significant implications for graduate employability and the quality of healthcare services. This study aims to critically evaluate how well academic programs in clinical engineering align with the evolving needs of Indonesia’s healthcare industry and to enhance employment opportunities for graduates. Employing thematic analysis based on Clarke & Braun's model and drawing on purposive sampling, interviews were conducted with stakeholders across the biomedical field, including educators, industry professionals, and healthcare providers. This approach allowed for a deep dive into the existing gaps between educational content and industry expectations. The research highlights a substantial lack of practical training and insufficient collaboration between academic institutions and the healthcare industry. These factors contribute to the skill mismatch among graduates and underscore the need for curriculum adjustments. Key findings suggest that integrating practical skills training and enhancing industry-academic partnerships are critical steps towards improving graduate employability. The study suggests that strategic curriculum adjustments are needed to better prepare graduates for the workforce
Development of Proximity-Based COVID-19 Contact Tracing System Devices for Locally Virus Spread Prevention
Full text linkCOVID-19 contact tracing is a preventive solution to slow the spread of the virus. Several countries have implemented manual contact tracing as well as digital tracking using smartphone applications. A proximity-based COVID-19 contact tracing system device using BLE (Bluetooth Low Energy) technology focuses on tracking and controlling the spread of the virus in local communities. The devices consist of a signal sending device (tag) and a signal receiving device (scanner). Suppose a system device is implemented in a factory. The tag will be used by employees by placing it in the front pocket of the factory employee's clothes or hooked on the shirt. The tag will continuously send a signal that will be read by the scanner. This received signal with the received signal strength indicator (RSSI) format will be used to calculate the distance between the scanner and the tag. Then the distance will be used to determine the coordinate point of the tag, with calculations using the trilateration algorithm. Therefore, the distance between tags can be obtained, while with signal fluctuation, the actual coordinate point cannot be obtained, yet proximity information can still be obtained by filtering distance data at a specified time interval that is less than the threshold value of the distance, 2 meters, then comparing the data with the overall data, resulting in a percentage value. A high percentage, above 80%, indicates the closeness between tags
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Visualisasi Bioimaging dengan Menggunakan Machine Learning
No full textTeknologi terkini sudah sangat memajukan kehidupan manusia, yaitu untuk membantu pekerjaan manusia agar lebih mudah, salah satunya yaitu teknologi untuk mengidentifikasi sel pada Bioimaging. Bioimaging sendiri digunakan untuk para dokter sel atau patologi. Dalam hal ini teknologi software yang digunakan yaitu Visualisasi Bioimaging, hal ini akan membantu para dokter sel untuk melihat sel pada Bioimaging secara 3D. Untuk memvisualisasi Bioimaging, dibutuhkan pula tools lain untuk dapat mengklasifikasi sel pada Bioimaging tersebut, seperti penggunaan machine learning agar dapat mengetahui sel-sel apa saja yang ada di Bioimaging tersebut. Bioimaging ini juga dapat diketahui jumlah sel yang ada pada Bioimaging tersebut, bergantung pada dataset yang diberikan, hasilnya pun akan berbeda-beda
Uji Kinerja Ventilator pada Mode Synchronized Intermittent Mandatory Ventilation (SIMV)
Full text linkABSTRAK
Gagal napas terjadi ketika sistem pernapasan tidak mampu mempertahankan kadar oksigen yang memadai dalam darah, baik dengan atau tanpa akumulasi karbon dioksida. Ventilator adalah alat yang mendukung pernapasan seseorang yang mengalami gagal napas. Pengaturan ritme pernapasan oleh mesin sering kali dirasakan tidak nyaman oleh pasien yang sadar, sehingga diperlukan sinkronisasi antara ritme pernapasan pasien dan mesin. Kami telah mengembangkan sebuah ventilator bernama COVENT untuk mengatasi masalah ini. Dalam artikel ini, kami melaporkan hasil uji kinerja ventilator dalam mode Synchronized Intermittent Mandatory Ventilation (SIMV). Hasil penelitian diuji dengan menggunakan VT gas flow analyzer, diperoleh akurasi pembacaan Positive End Expiratory Pressure (PEEP) sebesar 98,72%, akurasi volume yang dihasilkan sebesar 97,8-99,97% dari set volume yang ditetapkan dengan akurasi volume terbaca terhadap hasil uji VT gas flow analyzer sebesar 97,72-99,84%, akurasi pembacaan Peak Inspiratory Pressure (PIP) sebesar 97,77% dan akurasi deteksi usaha napas pasien 99,89%.
Kata kunci: Mode SIMV, PEEP, PIP, Ventilator
ABSTRACT
Respiratory failure occurs when the respiratory system is unable to maintain adequate oxygen levels in the blood, either with or without carbon dioxide accumulation. A ventilator is a device that supports the breathing of someone who is experiencing respiratory failure. Regulating the breathing rhythm by a machine is often felt uncomfortable by conscious patients, so synchronization is needed between the patient's breathing rhythm and the machine. We have developed a ventilator called COVENT to overcome this problem. In this article, we report the results of ventilator performance tests in Synchronized Intermittent Mandatory Ventilation (SIMV) mode. The results of the research were tested using a VT gas flow analyzer, the accuracy of the Positive End Expiratory Pressure (PEEP) reading was 98.72%, the resulting volume accuracy was 97.8-99.97% of the set volume determined with the accuracy of the volume read against the VT test results analyzer was 97.72-99.84%, the accuracy of the Peak Inspiratory Pressure (PIP) reading was 97.77% and the accuracy of detecting the patient's respiratory effort was 99.89%.
Keywords: PEEP, PIP, SIMV Mode, Ventilato
- …
