bluuebunny/crossref_metadata_2025 huggingface dataset:
Эффективный объединенный блок умножения/накопления с использованием мультиоперандного параллельного префиксного сумматора
Authors: Абиная A. , Махешвари M.
Published: December 2022

В статье разработаны и реализованы различные мультиоперандные параллельные префиксные сумматоры в объединенном блоке умножения/накопления MAC (multiply-accumulate). Мультиоперандное суммирование — улучшенный метод по сравнению с методом с использованием набора 2-операндных сумматоров во многих арифметических приложениях. Также, параллельный префиксный сумматор является одним из наиболее быстродействующих сумматоров. Таким образом, мультиоперандные сумматоры разрабатываются с использованием различных параллельных префиксных графов, которые используются для реализации объединенного MAC блока. Вначале в работе рассмотрены и проанализированы параллельные префиксные сумматоры. Далее структура данных разработанных сумматоров изменена для выполнения мультиоперандных операций, и разработан MAC блок с использованием различных мультиоперандных сумматоров на базе Xilinx Kintex 7 FPGA. Мультиоперандный сумматор Ладнера–Фишера обеспечивает оптимальные результаты относительно энергопотребления, площади и задержки, по сравнению с существующими аналогами. В соответствии с результатами, полученными в Kintex 7 FPGA, он имеет сниженное на 38,06% энергопотребление, на 17,54% — задержку распространения, и на 26,55% — количество LUT, по сравнению с существующим мультиоперандным сумматором. Соответственно, объединенный MAC блок на основе такого сумматора Ладнера–Фишера обеспечивает снижение энергопотребления на 39,95%, задержку распространения на 16,83%, и количество LUT — на 13,73%, по сравнению с классическим МАС блоком.
Розмиті релаксаційні спектри у діелектричних матеріалах
Authors: Поплавко Юрій Михайлович , Татарчук Д. Д. , Діденко Ю. В. , Чипегін Дмитро
Published: December 2022

Дано обґрунтування релаксаторної моделі діелектричних спектрів, яке ґрунтується на припущенні Дебая про дисперсію діелектричної проникності. Згідно з цим припущенням електрична поляризація полярних комплексів запізнюється на високих частотах електричного поля, внаслідок чого діелектрична проникність зменшується, а коефіцієнт діелектричних втрат сягає максимуму. Далі буде запропоновано новий (не емпіричний, а модельний) підхід до опису розширених діелектричних спектрів релаксації, тому доцільно розпочати викладення матеріалу з обговорення суті елементарної моделі діелектричної релаксації. Для інтерпретації складних діелектричних спектрів, які часто мають місце при експериментальних дослідженнях, необхідний найпростіший опис фізичних явищ, які відбуваються в досліджуваних об'єктах.
Обнаружение шагов человека с использованием алгоритмов расчета порога CME и FCME
Authors: Вистизенко Е. В. , Мовчанюк Андрей Валерьевич
Published: December 2022

В работе решена задача охраны периметра объекта путем обнаружения шагов человека при помощи автономных детекторов сейсмической активности. Представлены результаты применения алгоритмов последовательного среднего иссечения CME (consecutive mean excision) и прямого последовательного среднего иссечения FCME (forward consecutive mean excision) для расчета порогового уровня указанных датчиков. Алгоритмы тестировались на реальных экспериментальных данных. При работе с огибающей сейсмического сигнала алгоритм CME показал количество ложных срабатываний 23%, а FCME 10%. Исследованы возможности снижения количества ложных срабатываний алгоритмов. Нейтрализация тренда сигнала позволила снизить вероятность ложных срабатываний до 16% для алгоритма CME и до 7% для FCME. Нормализация амплитуды сигнала в кадре на интервале анализа позволила снизить количество ложных срабатываний до ничтожно малой величины. Полученные результаты позволяют выбрать алгоритм в зависимости от специфики входных данных. В задаче обнаружения шагов человека автономным датчиком наиболее целесообразно использовать алгоритм CME с предварительной нормировкой амплитуды сигнала из-за меньшей вычислительной сложности.
Combined control of multirate impulse processes in a cognitive map of COVID-19 morbidity
Authors: Romanenko Victor , Miliavskyi Yurii
Published: December 2022

In this article, a cognitive map (CM) of COVID-19 morbidity in a given region was built. A general linear impulse process (IP) model in the CM was developed and measured, and unmeasured CM node coordinates were defined. The general IP model was decomposed into interrelated subsystems with measurable and unmeasurable node coordinates. For the subsystem with measurable node coordinates, multirate sampling of coordinates was conducted, resulting in the development of discrete dynamics models for quickly and slowly measured node coordinates. External controls were selected in IP models based on the possible variation of resources of node coordinates and CM weighting coefficients. IP control laws based on the variation of CM nodes and weight were designed. As a result, recurrent procedures for control generation in closed-loop control subsystems with multirate sampling were formulated. Experimental research on the control subsystems was carried out. It confirmed high efficiency for decreasing COVID-19 morbidity.
Data protection management process during remote biometric authentication
Authors: Astrakhantsev Andrii , Liashenko Galyna
Published: December 2022

Remote biometric authentication systems have recently become widespread due to the need to use common devices and make payments over the Internet. Because biometric methods are more user-friendly and now quickly replace passwords, the task of transmitting biometric information over an open network without compromising it is becoming urgent. This work aims to upgrade the remote authentication system to increase the secrecy and security of user biometric data. In order to achieve this goal, it is proposed to use the best security methods for forming biometric templates, network steganography to increase secrecy, and the introduction of an intelligent decision-making system. These improvements will increase the security and privacy of data during the remote authentication process.
Nonintegrability of the Problem of the Motion of an Ellipsoidal Body with a Fixed Point in a Flow of Particles
Authors:   Department of Mechanics and Mathematics, Lomonosov Moscow State University, Main building of MSU, Gadzhiev M. M. ,   Department of Mechanics and Mathematics, Lomonosov Moscow State University, Main building of MSU, Kuleshov A. S.
Published: December 2022

The problem of the motion, in the free molecular flow of particles, of a rigid body with a fixed point bounded by the surface of an ellipsoid of revolution is considered. This problem is similar in many aspects to the classical problem of the motion of a heavy rigid body about a fixed point. In particular, this problem possesses the integrable cases corresponding to the classical Euler – Poinsot, Lagrange and Hess cases of integrability of the equations of motion of a heavy rigid body with a fixed point. A natural question arises about the existence of analogues of other integrable cases that exist in the problem of motion of a heavy rigid body with a fixed point (Kovalevskaya case, Goryachev – Chaplygin case, etc) for the system considered. Using the standard Euler angles as generalized coordinates, the Hamiltonian function of the system is derived. Equations of motion of the body in the flow of particles are presented in Hamiltonian form. Using the theorem on the Liouville-type nonintegrability of Hamiltonian systems near elliptic equilibrium positions, which has been proved by V. V. Kozlov, necessary conditions for the existence in the problem under consideration of an additional analytic first integral independent of the energy integral are presented. We have proved that the necessary conditions obtained are not fulfilled for a rigid body with a mass distribution corresponding to the classical Kovalevskaya integrable case in the problem of the motion of a heavy rigid body with a fixed point. Thus, we can conclude that this system does not possess an integrable case similar to the Kovalevskaya integrable case in the problem of the motion of a heavy rigid body with a fixed point.
Formal Asymptotics of Parametric Subresonance
Authors:   Ufa State Petroleum Technological University, Astafyeva P. ,   Ufa State Petroleum Technological University, Kiselev O.
Published: December 2022

The article is devoted to a comprehensive study of linear equations of the second order with an almost periodic coefficient. Using an asymptotic approach, the system of equations for parametric subresonant growth of the amplitude of oscillations is obtained. Moreover, the time of a turning point from the growth of the amplitude to the bounded oscillations in the slow variable is found. Also, a comparison between the asymptotic approximation for the turning time and the numerical one is shown.
Accompagner le monde agricole dans la préservation des messicoles : bilan de trois années d’inventaire et de sensibilisation en Poitou-Charentes
Authors: PAGOT Céline , SUAREZ David , BRUGEL Éric , BÉGOIN Sarah , DUCRY Jasmin , BARBIER Stéphane , BIMONT Sylvain
Published: December 2022

Les messicoles, plantes sauvages des espaces cultivés, sont souvent considérées comme des adventices indésirables par le monde agricole. Ce constat, ainsi que l’intensification des modes de production, ont conduit à une régression généralisée de ces espèces. En Poitou-Charentes, des actions d’inventaire et de conservation des messicoles ont été menées pendant trois ans, accompagnées par une sensibilisation des acteurs du monde agricole à l’importance de leur préservation. Financé par la DREAL Nouvelle-Aquitaine, la région Nouvelle-Aquitaine et une partie en autofinancement, le programme associatif Messicoles en Poitou-Charentes, successeur d’un premier programme similaire réalisé entre 2005 et 2009, se décline en trois volets : inventaire des messicoles à l’échelle de l’ex-région, communication avec outils pédagogiques et actions de conservation en partenariat avec le monde agricole et les gestionnaires d’espaces naturels. Les associations Charente Nature, Deux-Sèvres Nature Environnement, Nature Environnement 17, Vienne Nature et la Ligue pour la protection des oiseaux ont ainsi travaillé conjointement dans la préservation des messicoles en sensibilisant les exploitants et les propriétaires de parcelles hébergeant des espèces à fort enjeu.
Kajian Penggunaan Metode Mean Annual Flood (MAF), Rasional, Der Weduwen Dan Haspers Untuk Menentukan Debit Banjir Pada Sub Das Cikeruh
Authors: Carolina Yessi , Suryadi Edy , Kendarto Dwi Rustam
Published: December 2022

Air sangat penting bagi setiap makhluk hidup, tetapi dapat menyebabkan beberapa masalah yaitu banjir, kekeringan dan polusi air. Kawasan Sub DAS Cikeruh sering mengalami banjir terutama daerah kecamatan Rancaekek dan Bojongsoang sehingga merusak sarana dan prasarana umum serta menimbulkan kerugian harta. Dengan demikian, dilakukan analisis debit banjir untuk menentukan besarnya debit banjir rencana di Sub DAS Cikeruh. Tujuan dari penelitian ini adalah memperoleh simpangan nilai debit banjir rencana menggunakan metode Mean Annual Flood, metode Rasional, metode Der Weduwen, dan metode Haspers dengan debit banjir rencana data terukur. Penelitian ini menggunakan studi literatur dan menganalisis frekuensi curah hujan maksimum untuk mendapatkan debit banjir rencana pada Sub DAS Cikeruh. Hasil perhitungan data curah hujan menggunakan metode Mean Annual Flood, Rasional, Der Weduwen, dan Haspers pada analisis frekuensi data debit terukur didapatkan penyimpangan terkecil terjadi terhadap metode Mean Annual Flood yaitu sebesar 20,98% untuk periode ulang 2 tahun, 17,47% untuk periode ulang 5 tahun, 27,22% untuk periode ulang 10 tahun, 42,68% untuk kala ulang 20 tahun, 62,68% untuk periode ulang 50 tahun, dan 83,87% untuk periode ulang 100 tahun. Hasil penelitian ini berguna untuk mengetahui metode yang dapat digunakan sebagai referensi dalam menghitung debit banjir rencana serta menjadi pertimbangan dalam perencanaan pembangunan bangunan air.
RANCANG BANGUN DAN PENGUJIAN ALAT TANAM MURBEI
Authors: Sabaniah Syahrial , Agus Setiawan Radite Praeko , Hermawan Wawan , Saulia Lenny
Published: December 2022

Tanaman murbei (Morus Sp.) banyak digunakan dalam serikultur sebagai pakan ulat sutera. Selain sebagai pakan ulat sutera, tanaman murbei juga dapat dimanfaatkan sebagai tanaman pangan, pakan ternak dan obat-obatan. Pengembangbiakan tanaman murbei dapat dilakukan dengan dua cara, yaitu cara generatif (melalui biji) dan cara vegetatif (bagian dari tanaman itu sendiri). Metode pembibitan vegetatif telah banyak dilakukan oleh petani sutra. Teknik vegetatif relatif lebih mudah dilakukan serta lebih cepat untuk berproduksi. Teknik vegetatif yang banyak digunakan adalah stek. Dalam budidaya tanaman murbei, salah satu proses yang memakan banyak energi adalah pada proses penanaman. Penanaman stek murbei masih dilakukan secara manual. Pada penelitian ini akan dirancang alat tanam yang diharapkan mampu meningkatkan kapasitas dan efisiensi pada proses penanaman. Proses desain meliputi studi pendahuluan berupa studi karakteristik material untuk menentukan kriteria desain. Setelah itu dilakukan pemilihan komponen dan mekanisme, dilanjutkan dengan pembuatan gambar dan prototipe. Prototipe alat tanam diuji dengan uji statis untuk mengevaluasi fungsi penjatah. Dari hasil pengujian didapatkan persentase kegagalan kerja penjatah adalah 0,5% dimana terjadi pengambilan lebih dari satu stek dan tidak ditemukan kasus dimana stek tidak terambil oleh penjatah . Rata-rata stek yang rusak adalah 2% dan paling banyak terjadi pada penjatah kiri dengan tingkat kerusakan 4%. Angka tersebut menunjukkan bahwa perlu untuk dilakukan modifikasi.
Performance of Planting Tools (Seed Planter) on Rice Land, Palu City, Central Sulawesi
Authors: FITRI AMALIA ANUGERAH , Syafruddin
Published: December 2022

The application of innovation and technology in agricultural machinery in the world is one of the factors in increasing production and productivity of agricultural products. One of them is the application of agricultural machinery, namely the process of planting on agricultural land. The use of agricultural machinery at the farm level, especially planting, is still rarely carried out, as long as the availability of agricultural labor is decreasing. Most agricultural workers have entered non-productive age, while the interest of the younger generation to enter the world of agriculture is getting lower, especially conventional agriculture. Agricultural mechanization can solve this problem. The purpose of this research is to produce the performance of the seed planter in lowland rice fields. The research method uses an agrotechnical study that measures the theoretical capacity (Kt), actual working capacity (Ka), the efficiency of the seed planter's performance, and wheel slip on the seed planter. Based on the test results the average field capacity performance is 1.301 ha/hour, the test results are the actual average field capacity 0.650 ha/hour, the test results are the average efficiency of the tool performance is 50.0%, and the average slip test results wheel that is 13.75%. Factors that affect the performance test of planting tools, among others: operator skills, soil conditions, wheel slip, shape and size of planting tools, as well as the topography of a land.
 Keywords: Actual Work Capacity (Ka), Theoretical Work Capacity (Kt), Efficiency, Wheel Slip, Seed Planter
Studi Pengembangan Buah Jamblang (Syzygium Cumini L.) Menjadi Minuman Fungsional Kaya Antioksidan
Authors: Julyaningsih A. Hermina , M Rais , Irmayani Irmayani
Published: December 2022

Coppeng adalah istilah yang diberikan oleh masyarakat Bugis/Makassar untuk mendefinisikan buah Jamblang. Buah ini termasuk jenis buah musiman yang kaya akan antioksidan karena memiliki kandungan vitamin C dan antosianin yang cukup tinggi. Akibat tingginya kandungan antioksidan yang dimiliki buah jamblang, buah ini memiliki banyak manfaat yang baik untuk kesehatan, namun ternyata buah ini kurang disukai oleh masyarakat karena rasa asam dan sepatnya serta sifatnya yang tidak dapat ditemukan sepanjang tahun di pasaran. Salah satu upaya peningkatan pemanfaatan buah jamblang dapat dilakukan dengan mengolah buah ini menjadi produk olahan lainnya seperti minuman fungsional, namun perlu dilakukan penelitian lebih dahulu menganai penentuan formulasi antara perbandingan penggunaan sari buah jamblang, air dan pemanis (fruktosa/sukrosa). Pembuatan sari buah jamblang dilakukan dengan mencampur sari buah murni dan air dengan perbandingan 40:60, 50:50, dan 60:40, kemudian menambahkan pemanis sesuai perlakuan (fruktosa/sukrosa) sebanyak 15%. Minuman sari buah jamblang yang telah jadi diuji secara kimia meliputi uji total asam, kandungan vitamin C, pH, kandungan antosianin serta antioksidan dan juga melalui pengujian organoleptik meliputi rasa, aroma dan warna dari sari buah jamblang. Hasil analisis kimia tersebut menunjukkan bahwa minuman sari buah dengan perbandingan sari buah murni dan air 60:40 dan menggunakan sukrosa memiliki total antosianin yang paling tinggi dibandingkan perlakuan lainnya. Sari buah dengan perbandingan sari buah murni dan air 60:40 dengan penambahan fruktosa memiliki kandungan vitamin C dan total asam tertinggi dibanding perlakuan lainnya sehingga hal ini juga menyebabkan peralkuan ini memiliki nilai pH terkecil. Hasil analisis organoleptik menunjukkan perbandingan sari buah murni dan air 50:50 dengan penambahan sukrosa paling disukai oleh panelis dari segi rasa sedangkan perbandingan 60:40 dengan penambahan fruktosa lebih disukai oleh panelis dari segi warna dan aroma.
Drone-Based Vegetation Index Analysis to Estimated Nitrogen Content on The Rice Plantations
Authors: Adzima Ahmad Fauzan , Neswati Risma , Laban Sartika , Jayadi Muh , Anshori Muhammad Fuad , Mubarak Husnul , Noviyanti Eva , Zaesar Muharram Nur Qalbi , Mallarangen Andi Dharmawan
Published: December 2022

Nitrogen (N) merupakan salah satu unsur hara esensial yang dibutuhkan untuk pertumbuhan tanaman padi. Oleh karena itu, pemupukan N harus diterapkan secara efisien untuk mencapai hasil yang optimal. Berbagai metode telah digunakan untuk menghitung kandungan N pada tanaman padi seperti analisis jaringan dan penggunaan teknologi soil plant analysis development (SPAD). Teknologi ini masih memiliki kekurangan, salah satunya adalah efisiensi waktu. Dibutuhkan teknologi pendukung lainnya untuk mendukung analisis pertanian secara presisi dengan cepat, seperti penggunaan Unmaned Aerial Vehicles (UAV). Tujuan penelitian ini yaitu menganalisis kandungan N pada tanaman padi menggunakan indeks vegetasi berbasis UAV dan menganalisis perbandingan akurasi pengukuran N antara klorofil SPAD dengan indeks vegetasi tanaman padi. Penelitian ini menggunakan metode survei dan uji laboratorium yang didasari atas beberapa pendekatan, yaitu analisis fisiologi fotosintesis, analisis jaringan daun, dan analisis indeks vegetasi menggunakan UAV. Berdasarkan hasil penelitian, ditemukan nilai indeks vegetasi NDVI yang berkolerasi kuat dengan nilai jaringan N daun dan hasil pengukuran klorofil SPAD. Sedangkan hasil pengujian akurasi, hasil pengukuran klorofil dengan SPAD (CI A) memiliki akurasi yang lebih baik dibandingkan dengan indeks vegetasi NDVI. Nilai r antara CI A – N daun dengan NDVI – N daun tidak menunjukkan perbedaan yang singnifikan. Selain itu, hasil korelasi menunjukkan variabel jaringan N Daun (r=0.83), CI A (r=0.88), CI B (r=81), dan CI TOT (r=0.87) memiliki hubungan korelasi yang sangat tinggi terhadap NDVI. Hal ini menunjukkan hubungan yang searah antara variabel sehingga variabel NDVI dapat dijadikan sebagai pertimbangan untuk mengetahui klorofil pada tanaman yang diteliti.
Design of a Greenhouse Room Temperature and Humidity Control System Using a DHT 22 Sensor
Authors: Mubarak Husnul , Rizal Muhammad , Iqbal Iqbal , Waris Abdul , Tahir Sapsal Muhammad , Suelfikhar Imam
Published: December 2022

Kondisi suhu dan kelembapan pada pertumbuhan tanaman menjadi salah satu faktor yang penting. Ketidakstabilan suhu dan kelembapan sering menjadi permasalahan yang menjadikan tanaman tumbuh tidak maksimal. Penggunaan green house menjadi salah satu cara untuk menjaga suhu dan kelembapan secara buatan, namun masih mengalami beberapa kendala karena kondisi cuaca yang tidak stabil dan memengaruhi kondisi dalam ruang green house. Sistem kontrol menggunakan sensor suhu dan kelembapan (DHT 22) untuk mengukur kondisi dalam ruang green house dapat dimanfaatkan untuk menjaga kestabilan suhu dan kelembapan pada green house. Sistem kontrol ini akan dihubungkan dengan pompa air yang dihubungkan dengan alat misting di mana uap air yang dihasilkan oleh misting diharapkan bisa menjaga kelembapan ruang green house, serta alat kontrol akan dihubungkan dengan kipas yang dmana diharapkan bisa menjaga kondisi suhu pada ruang green house. Data hasil pengukuran alat sistem kontrol menggunakan sensor DHT 22 akan dibandingkan dengan data pengukuran hygrometer untuk proses kalibrasi. Pengujian fungsi alat kontrol dilakukan dengan melihat respons kipas dan pompa terhadap setting point pada pembacaan sensor DHT 22. Sistem kontrol ini sangat penting diaplikasikan karena bisa mejadi dasar dalam pengembangan green house kedepannya, dan sebagai dasar dalam pengembangan beberapa sistem kontrol yang terkait pada pertumbuhan tanaman. Hasil kalibrasi pembacaan sensor DHT 22 dan hygrometer diperoleh nilai error sebesar 0.27 °C untuk sensor suhu dan 1.23% untuk sensor kelembapan. Nilai ini menunjukkan bahwa kesalahan pembacaan sensor masih dalam standar toleransi sensor suhu, yaitu ±0.5 °C dan toleransi sensor kelembapan sebesar ±5%. Untuk hasil pengujian respons pompa dan kipas terhadap setting point menunjukkan kedua alat tersebut bekerja dengan bekerja dengan baik. Sehingga dapat disimpulkan rancangan alat dapat difungsikan dengan baik dalam pengontrolan ruang green house untuk menjaga kestabilan suhu dan kelembapan.
Shifting of Agriculture to Horticulture in Anantnag District: A Geographical Analysis
Authors: Sheikh Tajamul Hussain , Ahmed Rayees , Purohit Archana
Published: December 2022

The vast area of paddy crop in Anantnag district (Jammu and Kashmir) has been converted for the construction of houses, roads and especially for horticultural purposes. The cultivation of paddy has been an old cultural heritage of Anantnag district as well as for the Kashmir valley as a whole, while the farmers are increasingly finding it less profitable in recent times. The present study used both primary (Survey) and secondary data from different sources with an aim to highlight the issue of diversifying of food crops (Paddy) towards cash crops (Apple) in district Anantnag. The findings from the study reveal that 6908 hectares of agricultural cropped area is shifted towards the horticultural cropped area, as agricultural crops (paddy) have low comparative advantage over horticultural (Apple). Paddy land under surveyed farmers has registered a significant decrease from 330 canals (83.75%) in 2000-01 to 158 canals (40.11%) in 2014-15, therefore showing an absolute change of -172 canals. The primary survey further reveals that 09 (30%) of the respondents says less profit is the main reason behind the shift, followed by irrigation (drought) problems 07 (23.34%) and 14 (46.66%) respondents says both reasons are responsible behind shift of Paddy to Apple cultivation in the region.
Influence of Soil Layers on the Infiltration Rates and Cumulative Infiltration Using Modified Green Ampt Model in the HYDROL-INF Simulation Environment
Authors: Khanaum Mosammat Mustari , Borhan Md. Saidul
Published: December 2022

Soil profiles are generally heterogeneous and consist of various horizontal layers due to geological processes, the formation of crusts, or other artificial or man-made activities. To quantify infiltration into these heterogeneous soil profiles, the Modified Green-Ampt Model (MGAM) is a physically-based hydrologic model that can efficiently perform under both steady and unsteady rainfall events. Based on the secondary data, this study sought to determine the effect of changing soil layers (soil textures) on infiltration rates and cumulative infiltrations in in both laboratory and field settings. Different scenarios were analyzed by rearranging soil layers and evaluating their impacts on corresponding infiltration rates and cumulative infiltrations. Simulations were run with HYDROL-INF software environment using MGAM. Three scenarios were considered for a laboratory experiment with two different types of soil texture coupled with five different soil profiles. Similarly, four scenarios were considered for the field experiments with five different types of soil texture couple with eight different soil profiles. The simulated infiltration rates and cumulative infiltrations were found to vary with soil layer change scenarios. The simulated cumulative infiltrations, ponding times, infiltrating rates at ponding, and total depth of wetting front at ponding of a five-layered laboratory soil column were identical for the three scenarios. Simulated cumulative infiltrations were 33.16, 23.65, 21.29, and 42.77 cm, respectively, for scenarios (combinations) 1, 2, 3, and 4 in the eight-layered soil profile in the field scenarios. Infiltration rates among scenarios at ponding were identical (0.46 to 0.53 cm/h) with field scenario data.
A New Prediction Data Model of High-Risk COVID-19 Patient with Smart Notification (HRCP-SN) Using Machine Learning Algorithm
Authors: Yenurkar Ganesh , Mal Sandip
Published: December 2022

A web application designed to predict high-risk patients affected by COVID-19 runs a machine learning (ML) model at the backend to generate results. The random forest classification technique (a type of supervised ML approach) is used to predict the high-risk status of patients who are COVID-19 positive and are at the initial stage of infection. To predict high-risk patients, the model uses the patients’ current underlying health conditions, such as age, sex, diabetes, asthma, hypertension, smoking, and other factors. After data preprocessing and training, the model could predict the severity of the patient with an accuracy of approximately in 65–70%. According to some studies, random forest ML models outperform other ML models for solving the challenge of predicting unusual events such as pneumonia, hypertension, diabetes, obesity, and chronic renal disease were the most contributory variables for model implementation. This project will help patients and hospital staff make necessary decisions and actions in advance. This will help healthcare workers arrange resources and hospital areas for high-risk COVID-19 patients. Thus, this study provides an effective and optimized treatment. Using this application and suitable patient data, hospitals can predict whether a patient will require urgent care.
A new technique in posterior thoraco-lumbar implant removal surgery: Follow-up results for at least 10 years
Authors: YILMAZ Murat , ERTEM Onder , IKIZOGLU Ersin , ARSLAN Mert , ERBAYRAKTAR Serhat Resat , YUCESOY Kemal
Published: December 2022

Inroduction: Pedicle screw removing is not uncommon and require reoperations which is an immense burden on the patient and on the healthcare system.We aimed to describe with a novel surgical approach for the removal of posterior thoracolumbar implant in patients with symptomatic failure of the implant and present our preliminary results with this method.
Materials and Methods: This retrospective, single-center study was performed in the neurosurgery department of a university hospital. Data were gathered from the medical files of 314 patients (243 women, 77.39%; 71 men, 22.61%) with symptomatic thoracolumbar implant failure that underwent implant removal operation using our novel technique between 2010 and 2020. Symptoms, radiological findings, intraoperative findings as well as clinical outcomes were evaluated.
Results: In our series, the average age was 46.5 years (range: 21 to 84) with a mean follow-up duration of 7 years (range: 3 months to 10 years). Preoperatively, the most common symptoms were leg pain and numbness of the lower extremity. Postoperatively, no major complications were noted. Clinical progression of symptoms was avoided by surgery in all patients, while we came across removal difficulties due to screw-screwdriver mismatch in 15 of 314 surgeries (4.78%). Our novel approach allowed successful screw removal including these challenging cases.
Conclusion: We suggest our novel approach is a practical and effective for the removal of posterior thoracolumbar implant in cases with symptomatic failure attributed to screw-screwdriver mismatch. Further trials are warranted to assess the efficacy of this technique to overcome surgical problems associated with screw removal.
Comparative Study of Design of Cantilever Retaining Wall as Per ACI 318 & IS 456
Authors: Kumar Puneet , Yadav Baljeet
Published: December 2022

Every country has its standard for the design and construction of structures. The codes have been evolved with the consent of several structure engineers having knowledge gained from several years of experience. These codes are revised periodically and amendments are made based on current research and current requirement.
The function of the design codes is to ensure safety and reliability and also specify certain essentials like minimum percentage of reinforcement, dimension of certain structures, etc. They render the task of the designer relatively easy and simple; results are often formulated in formulas and charts. The codes also ensure no conflict among the designer about dimension and design criteria of structure. Finally, they also provide some legal liability due to structural failure that can be caused by inadequate supervision and faulty material and construction.
This research paper aims to compare the design of a cantilever retaining wall using two different codes IS 456:2000 and ACI 318-05. The broad safety checks like check for overturning and check for sliding has been done using both code and also their comparison has been done. Comparison of design criteria for designing of retaining wall has also been accomplished.
Transcriptomics, metabolomics, and in silico drug predictions to prevent or treat liver damage in young and aged burn victims
Authors: Malachowska Beata , Yang Weng-Lang , Qualman Andrea , Muro Isreal , Boe Devin , Kovacs Elizabeth , Idrovo Juan-Pablo
Published: December 2022

Burns are a leading cause of morbidity and mortality worldwide, affecting individuals of all ages. Burns induce a systemic response affecting multiple organs where the liver is frequently damaged. Since the liver plays a critical role in metabolic, inflammatory, and immune events, a patient with impaired liver often exhibits poor outcomes. The mortality rate after burns in the elderly population is higher than in any other age group, and studies show that the liver of aged animals is more susceptible to injury after burns. Thus, understanding the liver response to burns in young and aged burn victims is fundamental to improving overall health care. Moreover, no liver-specific therapy exists to treat burn-induced liver damage highlighting a critical gap in burn injury therapeutics. In this project, we analyzed transcriptomics and metabolomics data from the liver of young and aged mice to identify mechanistic pathways and in-silico predict therapeutic targets to prevent or reverse burn-induced liver damage. Our study highlights pathway interactions and master regulators that underlie the liver response to burn injury in young and aged animals. The results reveal genes that may represent prospective hallmark signatures for liver damage, especially in the livers of aged burn victims.
Toward a Biomarker Panel measured in CNS-originating Extracellular Vesicles for Improved Differential Diagnosis of Parkinson’s Disease and Multiple System Atrophy
Authors: Taha Hash Brown , Hornung Simon , Dutta Suman , Fenwick Leony , Lahgui Otmane , Howe Kathryn , Elabed Nour , Rosario Irish del , Wong Darice Y. , Folle Aline Duarte , Markovic Daniela , Palma Jose-Alberto , Kang Un Jung , Alcalay Roy N. , Sklerov Miriam , Kaufmann Horacio , Fogel Brent L. , Bronstein Jeff M. , Ritz Beate , Bitan Gal
Published: December 2022

Synucleinopathies are neurodegenerative diseases characterized by accumulation of misfolded α-synuclein (α-syn) inclusions in neuronal and/or glial cells. Different synucleinopathies may affect different brain regions and cell types. In Parkinson’s disease (PD) and dementia with Lewy bodies (DLB), α-syn deposits predominantly in neuronal Lewy bodies (LBs) and Lewy neurites (LNs), whereas in multiple system atrophy (MSA), α-syn-rich glial cytoplasmic inclusions (GCIs) are found in oligodendrocytes (1). Despite differences in the underlying pathophysiology, synucleinopathies often are misdiagnosed, especially by non-experts in the early-stages, due to the overlapping clinical symptoms (2, 3).
Several studies have demonstrated the utility of measuring α-syn in neuronal EVs (nEVs) as a diagnostic biomarker for PD and atypical parkinsonian disorders (4). Recently, our group has shown that α-syn measured in both nEVs and oligodendroglial EVs (oEVs) in the same samples, and in particular the oEV:nEV α-syn concentration ratio, yielded a discriminative model distinguishing between PD and MSA with 89.8% sensitivity and 86.0% specificity and between healthy controls (HC) and MSA with 96.0% sensitivity and 84.3% specificity. In contrast, the model offered moderate separation between PD and HC – 71.4% sensitivity and 62.7% specificity (5).
Is MRI-Linac helpful in SABR treatments for liver metastases?
Authors: Tallet Agnès , Boher Jean-Marie , Tyran Marguerite , Mailleux Hugues , Piana Gilles , Benkreira Mohamed , Fau Pierre , Salem Naji , Gonzague Laurence , Petit Claire , Darréon Julien
Published: December 2022

Objective
To determine the MRI-Linac added value over conventional image-guided radiation therapy (IGRT) in liver tumors Stereotactic ablative radiation therapy (SABR).
Materials and methods
We retrospectively compared the Planning Target Volumes (PTVs), the spared healthy liver parenchyma volumes, the Treatment Planning System (TPS) and machine performances, and the patients' outcomes when using either a conventional accelerator (Versa HD®, Elekta, Utrecht, NL) with Cone Beam CT as the IGRT tool or an MR-Linac system (MRIdian®, ViewRay, CA).
Results
From November 2014 to February 2020, 59 patients received a SABR treatment (41 and 18 patients in the Linac and MR-Linac group, respectively) for 64 primary or secondary liver tumors. The mean tumor size was superior in the MR-Linac group (37,91cc vs. 20.86cc). PTV margins led to a median 74%- and 60% increase in target volume in Linac-based and MRI-Linac-based treatments, respectively. Liver tumor boundaries were visible in 0% and 72% of the cases when using CBCT and MRI as IGRT tools, respectively. The mean prescribed dose was similar in the two patient groups. Local tumor control was 76.6%, whereas 23.4% of patients experienced local progression (24.4% and 21.1% of patients treated on the conventional Linac and the MRIdian system, respectively). SABR was well-tolerated in both groups, and the use of MR-guided radiation therapy prevented ulcerous disease occurrence.
Conclusion
The use of MRI as IGRT allows for the reduction of the amount of healthy liver parenchyma irradiated without any decrease of the tumor control rate, which would be helpful for dose escalation or subsequent liver tumor irradiation if needed. On-line adaptive treatments seem to reduce gastrointestinal toxicity.
Innovative ecosystem: the role of lean management auditing
Authors: Dobrowolski Zbyslaw , Sulkowski Lukasz , Adamisin Peter
Published: December 2022

The auditing of organizations’ activities plays a crucial role in ensuring the direction chosen by top management and identifying early signs of upcoming changes and threats. The audit assesses the efficient use of resources and processes and promotes corporate credibility, which is essential from investors’ perspectives, particularly in ecosystems of innovations. Meanwhile, little is known about lean auditing, which is crucial in achieving effective processes. This paper summarises the arguments and counterarguments within the scientific discussion on the issue of auditing. The research’s primary purpose is to identify types of waste in auditing and formulate the principles of lean auditing. The systematic literature review and approaches for solving the problem based on grounded theory and triangulation of methods enabled the resolving of research problems. This article analyses the internal auditing standards and guidelines and uses in-depth interviews with 19 internal auditors from different Polish public organizations from 2017 to 2020. The choice of a qualitative approach resulted from the research phenomenon’s open nature, with very few studies. It created a need for a reflective approach with respondents simultaneously being key informants and experts. The results of an empirical analysis showed that internal auditors little knew about the lean concept in audit processes. However, they noticed the benefits of using the lean concept in the audit. The research enabled the development of the model of lean auditing. It could help improve the audit process, which is particularly important from the innovation ecosystem perspective. Besides, one determined the waste of auditing and formulated the principles of lean auditing. The research results develop the audit theory and are helpful for practitioners. Improved internal audit better meets stakeholders’ expectations regarding the spending of funds and implementation of tasks.
Molecular Detection of Class 1 Integron Gene and Antibiotics Susceptibility Patterns of Pseudomonas Species Isolated from Clinical Specimens
Authors: Win Kyaw Khine , Su Khine Khine , Wunna Kyaw , Aung Nay Myo , Oo Aung Phyo , Min Win Ko Ko , Thant Aye Min
Published: December 2022

Pseudomonas species is a common cause of health care acquired infection and also stand in second place in WHO critical list for antimicrobial resistance. Acquisition of antibiotic resistance gene in pathogenic bacteria has been a growing problem worldwide. The presence of resistance gene in class 1 integrons is associated with multi- drug resistance among Pseudomonas species. This study aimed to detect the class 1 integron and antibiotic susceptibility patterns of Pseudomonas species isolated from clinical specimens at No. (1) Defence Services General Hospital (1000-bedded) during the period of January to September 2020. The hospital and laboratory based descriptive study was conducted among the clinical samples received at Microbiology laboratory. Isolation, identification and antimicrobial susceptibility testing were performed by Vitek 2 automated systems. All Pseudomonas species were tested for the presence of class 1 integron by PCR. In this study, 77 Pseudomonas species isolated from various clinical specimens. According to the finding, the most common resistance was observed towards cefotaxime (97.4%), while resistance to amikacin was less observed among isolates (22%). Out of 77 Pseudomonas species isolates, 54 (70%) were multidrug resistant (MDR) according to CLSI 2020 guidelines. Among the multidrug resistance, 38 (95%) isolates were class 1 integron positive (p<0.001) and 16 (43.24%) were class 1 integron negative (p<0.001). Therefore, this finding indicates the strong association between the presence of class 1 integron and multidrug resistance. Therefore, integrons play an important role in acquisition and dissemination of antibiotics resistance genes among Pseudomonas species.
Detection of Class 1 Integron Among Klebsiella Species Isolated from Clinical Samples at No (1) Defence Services General Hospital (1000 Bedded)
Authors: Thu Kaung Myat , Win Kyaw Khine , Su Khine Khine , Wunna Kyaw , Aung Nay Myo , Oo Aung Phyo , Min Win Ko Ko , Thant Aye Min
Published: December 2022

Klebsiella species is commonly associated with serious nosocomial infections. Multi-drug resistant Klebsiella species isolates are becoming increasingly prevalent in the clinical and nosocomial environments. The high prevalence of Klebsiella infections is related to the ability of Klebsiella species to acquire and disseminate exogenous genes associated with mobile elements, such as plasmids, transposons and integrons. This study was conducted to find out the presence of class 1 integron and antibiotic susceptibility patterns of Klebsiella species from clinical specimens at No (1) Defence Services General Hospital (1000-Bedded). A laboratory based cross-sectional descriptive study was carried out from January to september, 2020. Identification and antimicrobial susceptibility testing of Klebsiella species was performed by VITEK 2 Compact Analyzer. Class 1 integrons were detected by conventional PCR. In this study, 110 Klebsiella species were isolated from various clinical specimens and most of the isolates were from medical ward (52.3%, 63 isolates). The highest rate of resistance was observed for ampicillin (100%) and Cefotaxime (97.3 %) whereas the lowest antibiotic resistance was to Amikacin (15.5%). Out of 110 Klebsiella isolates, 107 (97.3%) were multidrug resistant (MDR). Forty-four (40%) out of 110 Klebsiella isolates carried int1 gene and all these isolates were MDR. However, there was no association between multidrug resistance and integron positivity (p value = 0.273). The presence of class I integron genes among Klebsiella species highlights the continued monitoring is necessary for prevention of wide dissemination of integrons and infections by MDR pathogens.
Predicting consumers’ apartment purchase intention in Vietnam using an extended theory of planned behavior
Authors: Pham Dinh Han , Vo Thanh Hai , Phan Thanh Hai
Published: December 2022

Finding the factors associated with the intention to buy apartments is essential for real estate enterprises. This study applies an extended theory of planned behavior (TPB) to explore Vietnamese consumers’ intentions to purchase flats. Besides the structure of the TPB, other determinants relevant to the research context were identified by reviewing the literature. The convenience sampling technique was used to collect 512 responses using the questionnaire. The covariance-based structural equation modeling was applied to test the measurement and structural models. The results revealed that perceived behavioral control was the most critical determinant of purchase intention, followed by financial factors, attitude toward a behavior, apartment features, and subjective norms. In addition, project facilities, perceived risk, financial factors, and apartment features indirectly affect purchase intention through attitude toward a behavior. Meanwhile, the relationship between project facilities and perceived risk with purchase intention is not statistically significant. Thus, attitude toward a behavior is essential in enhancing the consumers’ apartment purchase intention at this stage. The study implements a suitable model to analyze the intention to purchase apartments in a developing country by extending TPB.
AcknowledgmentThis study was carried out within the framework of the doctoral thesis subject to Decision No. 4287/QD-ĐHDT dated 30/10/2020 of Duy Tan University, Vietnam. The authors would like to thank the reviewers and the editor-in-chief for helping to prepare this study.
The issues of endometriosis hormonal treatment in reproductive age women
Authors: Ivanov I. A.
Published: December 2022

Endometriosis is one of the most common gynecological diseases associated with severe pelvic pain, uterine bleeding, and infertility. Current treatment patterns include endometriosis excision and medical management. Since endometriosis is a  chronic disease with a recurrent clinical course, the crucial role holds a long-term suppressive therapy. It should be characterized by high efficacy, tolerability, a favorable safety profile, as well providing sustained remission and improving the quality of life. The current review summarizes the modern data on conservative management, mechanisms of hormonal therapeutic effects. The national recommendations of Russian and international obstetrics and gynecology societies were analyzed, taking into account the results of systematic reviews, meta-analyses and randomized clinical trials. Combined oral contraceptives and progestogens are considered as first-line hormone therapy. Choosing the proper medication is a controversial issue that requires a comprehensive understanding of its effect on various forms of endometriosis. The review analyzes comparative data on the effectiveness, safety, side effects, impact on the quality of life, the frequency of relapse during various progestogens monotherapy and oral contraceptives, including different dosage regimens. This data allows making an optimal choice of long-term management, with high compliance and efficiency, associated with low recurrence rate.
Early and long-term consequences for newborns with fetus growth retardation. Retrospective study data for 2019–2021
Authors: Gasanbekova A. P. , Lomova N. A. , Dolgopolova E. L. , Titova E. V. , Karapetyan T. Eh. , Ryumina I. I.
Published: December 2022

Introduction. The urgency of the problem of fetal growth retardation is beyond doubt. To date, it has been established that IUGR complicates 15% of all pregnancies in the world, increasing to 25% with a burdened obstetric and gynecological history and complicated pregnancy. According to a number of studies, it is known that FGR leads at a later age to the development of diseases such as metabolic syndrome, obesity, coronary heart disease, hypertension, and type 2 diabetes. Objective. To identify clinical and anamnestic risk factors for the development of IUGR and assess early neonatal health outcomes for newborns with various forms of IUGR (early and late).Materials and methods. The work was based on a retrospective review of maps, including 2000 birth histories of women who gave birth at the Center from 2019 to 2021. We selected 145 birth histories with IUGR, according to the inclusion and exclusion criteria and 66 birth histories with a normal pregnancy. Short-term outcomes of IUGR were analyzed on the basis of data from medical records of newborns, long-term outcomes of IUGR were determined after a subsequent study of 64 cases of children at 12 months old, observed on the territory of the Center’s children’s polyclinic Results. Significant clinical risk factors for the implementation of IGR should include: maternal BMI, pregnancy-induced hypertension/preeclampsia, gestational diabetes mellitus against the background of normal maternal weight and height, and oligohydramnios. Among infants with IGR, an increase in complications such as respiratory failure, myocardial hypertrophy, circulatory failure and disseminated intravascular coagulation is associated with an increased risk of perinatal mortality and an increase in infant mortality. Conclusions. IGR has a significant adverse effect on the health of the fetus and newborn and its long-term prognosis. Newborns with growth retardation have higher morbidity and mortality, require longer hospital stays, and consequently require higher hospital costs
Overview of residual disinfection practice by European water suppliers
Authors: Breach R. A.
Published: December 2022

This paper summarises the current approach to disinfection in different European countries, and describes some of the factors that will drive change. Historically, the wide diversity in water resource availability and supply infrastructure across the Continent, as well as disinfection philosophy, have all influenced disinfection practice. However, in the future new EU regulatory standards for disinfection by¬products and customer pressure for improved water taste, will also have a growing impact. The paper reviews the fundamental principles of disinfection, both at source and in the distribution network, and highlights the critical issue of balancing microbial risk against achievement of low disinfection by-product levels and acceptable tastes for customers, New technology is facilitating moves towards low or even zero disinfectant residuals, However, whilst the goal of zero network residuals and high standards of microbiological safety has already been achieved in some parts of Europe, in many supply systems this will only be possible at significant cost.