bluuebunny/crossref_metadata_2025 huggingface dataset:
Access Control for IoT: A Survey of Existing Research, Dynamic Policies and Future Directions
Authors: Ragothaman Kaushik , Wang Yong , Rimal Bhaskar , Lawrence Mark
Published: February 2023

Internet of Things (IoT) provides a wide range of services in domestic and industrial environments. Access control plays a crucial role in granting access rights to users and devices when an IoT device is connected to a network. However, many challenges exist in designing and implementing an ideal access control solution for the IoT due to the characteristics of the IoT including but not limited to the variety of the IoT devices, the resource constraints on the IoT devices, and the heterogeneous nature of the IoT. This paper conducts a comprehensive survey on access control in the IoT, including access control requirements, authorization architecture, access control models, access control policies, access control research challenges, and future directions. It identifies and summarizes key access control requirements in the IoT. The paper further evaluates the existing access control models to fulfill the access control requirements. Access control decisions are governed by access control policies. The existing approaches on dynamic policies’ specification are reviewed. The challenges faced by the existing solutions for policies’ specification are highlighted. Finally, the paper presents the research challenges and future directions of access control in the IoT. Due to the variety of IoT applications, there is no one-size-fits-all solution for access control in the IoT. Despite the challenges encountered in designing and implementing the access control in the IoT, it is desired to have an access control solution to meet all the identified requirements to secure the IoT.
Mobility Classification of LoRaWAN Nodes Using Machine Learning at Network Level
Authors: Vangelista Lorenzo , Calabrese Ivano , Cattapan Alessandro
Published: February 2023

LoRaWAN networks rely heavily on the adaptive data rate algorithm to achieve good link reliability and to support the required density of end devices. However, to be effective the adaptive data rate algorithm needs to be tuned according to the level of mobility of each end device. For that purpose, different adaptive data rate algorithms have been developed for the different levels of mobility of end devices, e.g., for static or mobile end devices. In this paper, we describe and evaluate a new and effective method for determining the level of mobility of end devices based on machine learning techniques and specifically on the support vector machine supervised learning method. The proposed method does not rely on the location capability of LoRaWAN networks; instead, it relies only on data always available at the LoRaWAN network server. Moreover, the performance of this method in a real LoRaWAN network is assessed; the results give clear evidence of the effectiveness and reliability of the proposed machine learning approach.
Temperature Drift Compensation of a MEMS Accelerometer Based on DLSTM and ISSA
Authors: Guo Gangqiang , Chai Bo , Cheng Ruichu , Wang Yunshuang
Published: February 2023

In order to improve the performance of a micro-electro-mechanical system (MEMS) accelerometer, three algorithms for compensating its temperature drift are proposed in this paper, including deep long short-term memory recurrent neural network (DLSTM-RNN, short DLSTM), DLSTM based on sparrow search algorithm (SSA), and DLSTM based on improved SSA (ISSA). Moreover, the piecewise linear approximation (PLA) method is employed in this paper as a comparison to evaluate the impact of the proposed algorithm. First, a temperature experiment is performed to obtain the MEMS accelerometer’s temperature drift output (TDO). Then, we propose a real-time compensation model and a linear approximation model for neural network methods compensation and PLA method compensation, respectively. The real-time compensation model is a recursive method based on the TDO at the last moment. The linear approximation model considers the MEMS accelerometer’s temperature and TDO as input and output, respectively. Next, the TDO is analyzed and optimized by the real-time compensation model and the three algorithms mentioned before. Moreover, the TDO is also compensated by the linear approximation model and PLA method as a comparison. The compensation results show that the three neural network methods and the PLA method effectively compensate for the temperature drift of the MEMS accelerometer, and the DLSTM + ISSA method achieves the best compensation effect. After compensation by DLSTM + ISSA, the three Allen variance coefficients of the MEMS accelerometer that bias instability, rate random walk, and rate ramp are improved from 5.43×10−4mg, 4.33×10−5mg/s12, 1.18×10−6mg/s to 2.77×10−5mg, 1.14×10−6mg/s12, 2.63×10−8mg/s, respectively, with an increase of 96.68% on average.
Hybrid Particle Swarm Optimization Algorithm Based on the Theory of Reinforcement Learning in Psychology
Authors: Huang Wenya , Liu Youjin , Zhang Xizheng
Published: February 2023

To more effectively solve the complex optimization problems that exist in nonlinear, high-dimensional, large-sample and complex systems, many intelligent optimization methods have been proposed. Among these algorithms, the particle swarm optimization (PSO) algorithm has attracted scholars’ attention. However, the traditional PSO can easily become an individual optimal solution, leading to the transition of the optimization process from global exploration to local development. To solve this problem, in this paper, we propose a Hybrid Reinforcement Learning Particle Swarm Algorithm (HRLPSO) based on the theory of reinforcement learning in psychology. First, we used the reinforcement learning strategy to optimize the initial population in the population initialization stage; then, chaotic adaptive weights and adaptive learning factors were used to balance the global exploration and local development process, and the individual optimal solution and the global optimal solution were obtained using dimension learning. Finally, the improved reinforcement learning strategy and mutation strategy were applied to the traditional PSO to improve the quality of the individual optimal solution and the global optimal solution. The HRLPSO algorithm was tested by optimizing the solution of 12 benchmarks as well as the CEC2013 test suite, and the results show it can balance the individual learning ability and social learning ability, verifying its effectiveness.
The Adaptive Seismic Resilience of Infrastructure Systems: A Bayesian Networks Analysis
Authors: Tang Hui , Zhong Qingping , Chen Chuan , Martek Igor
Published: February 2023

Earthquakes pose a significant threat to infrastructure systems. However, improving the seismic resilience of infrastructure systems in earthquake-prone regions is fraught with obstacles. First, this article reviews the current status of earthquake resilience research, points out the gaps of existing research, and then focuses on the adaptability in resilience. Secondly, five groups of influencing factors of infrastructure system adaptability are identified and clustered through literature review and expert knowledge. Thirdly, the structure and conditional probability table of the Bayesian network model are given in detail, and the evaluation model of Bayesian network adaptability is created. A Chinese earthquake-prone county was used to verify the applicability of the model. The research uses forward propagation analysis to calculate the adaptability of the case and obtains the probability of the case’s adaptability. The backward propagation to obtain the ranking of the influence degree of the critical influencing factors on the adaptability and the top three factors are respectively earthquake history, relevant information and contingency mechanisms. Finally, the research suggests measures to improve adaptability.
Toxicological Assessment of Particulate and Metal Hazards Associated with Vaping Frequency and Device Age
Authors: Jeon Jennifer , Zhang Qian , Chepaitis Patrick S. , Greenwald Roby , Black Marilyn , Wright Christa
Published: February 2023

Electronic nicotine delivery systems (ENDS) aerosols are complex mixtures of chemicals, metals, and particles that may present inhalation hazards and adverse respiratory health risks. Despite being considered a safer alternative to tobacco cigarettes, metal exposure levels and respiratory effects associated with device aging and vaping frequency have not been fully characterized. In this study, we utilize an automated multi-channel ENDS aerosol generation system (EAGS) to generate aerosols from JUUL pod-type ENDS using tobacco-flavored e-liquid. Aerosol puff fractions (1–50) and (101–150) are monitored and sampled using various collection media. Extracted aerosols are prepared for metal and toxicological analysis using human primary small airway epithelial cells (SAEC). ENDS aerosol-mediated cellular responses, including reactive oxygen species (ROS), oxidative stress, cell viability, and DNA damage, are evaluated after 24 h and 7-day exposures. Our results show higher particle concentrations in later puff fractions (0.135 mg/m3) than in initial puff fractions (0.00212 mg/m3). Later puff fraction aerosols contain higher toxic metal concentrations, including chromium, copper, and lead, which elicit increased levels of ROS followed by significant declines in total glutathione and cell viability. Notably, a 30% increase in DNA damage was observed after 7 days because of later puff fraction exposures. This work is consistent with ENDS aerosols becoming more hazardous across the use of pre-filled pod devices, which may threaten respiratory health.
Features of open respiratory tract care in patients undergoing prolonged artificial lung ventilation
Authors:   Cardiovascular surgery federal center named after S. G. Sukhanov» Ministry of health of the Russian Federation (Perm), Kudryavtseva L.G. , Sergevnin V.I. ,   Perm State Medical University named after academician E. A. Wagner, Krasotkin A.V. ,   Cardiovascular surgery federal center named after S. G. Sukhanov» Ministry of health of the Russian Federation (Perm)
Published: February 2023

A visual assessment of compliance with the requirements of epidemiological safety of 52 open-air respiratory tract care procedures in 8 operated adult patients undergoing long-term artificial lung ventilation in the department of anesthesiology and resuscitation of a cardiac hospital showed a high frequency of violations of the technology of these procedures. To optimize the care of the respiratory tract in such patients and improve epidemiological safety, an improved manipulation algorithm is proposed. The issue of the priority of rehabilitation of the tracheobronchial tree and upper respiratory tract requires further epidemiological and microbiological assessmen.
Electrochemical Desalination of a 50% w/w Sodium Hydroxide Solution, a Pharmaceutical Sterilization Agent
Authors: Lee Jaehong , Yang Ji-hyun , Huh Eugene , Park Sewon , Koo Bonmoo , Ahn Ik-Sung
Published: February 2023

Sodium hydroxide solutions are often employed as sterilization agents in the pharmaceutical industry. Here, the chloride content is considered as a critical impurity. In this study, an electrochemical method was developed to remove chloride ions (Cl−) through the oxidative deposition of AgCl on a Ag anode. The Cl− content in the commercially available 50% w/w NaOH solution employed was approximately 100 mg Cl−/kg NaOH. As the OH− content is approximately 18,000 times higher than the Cl− content, the formation of AgCl may be expected to be thermodynamically less favorable than the formation of Ag2O. However, activation energies for AgCl and Ag2O formation have been reported to be approximately 3.8 and 31.2 kJ/mol, respectively, and indicate that AgCl formation is favored. AgCl can be selectively produced by controlling the anode potential. Here, the Cl− concentration was reduced to less than 50 mg Cl−/kg NaOH when an anode potential of 0.18 or 0.19 V vs. Hg/HgO (reference electrode) was applied for one hour at 50°C. XRD analysis and visual monitoring of the Ag anode confirmed the oxidative deposition of AgCl on the anode surface as well as the electrochemical desalination of the concentrated NaOH solution.
PREDIKSI SISWA-SISWI SMK AZ-ZAHRA MLONGGO MASUK PASAR KERJA MENGGUNAKAN ALGORITMA NAIVE BAYES
Authors: Zyen Akhmad Khanif , Widiastuti Nur Aeni
Published: February 2023

Siswa-siswi SMK Azzahra setiap tahunnya sebagian besar diharapkan langsung bekerja sesuai bidangnya, tapi dalam pengolahan tingkat nilai prestasi siswa yang menetukan kriteria masuk pasar kerja masih menggunakan cara manual yang terdapat banyak kelemahan dan berpotensi mengakibatkan kesalahan. Perlu adanya Algoritma Klasifikasi untuk memecahkan permasalahan ini, ada salah satu Algoritma Klasifikasi yang sudah terbukti akurasi dan kecepatan yang baik untuk memecahkan permasalahan tersebut yaitu Algoritma Naive Bayes. Oleh karena itu penulis menganalisis prediksi siswa-siswi masuk pasar kerja dengan metode Naïve Bayes untuk menentukan lulus tidaknya masuk kriteria pasar kerja. Penulis membuat perhitungan metode Naïve Bayes secara manual menggunakan Excel dan menggunakan aplikasi pendukung Rapidminer 5.3, dimana dalam penelitian ini data yang digunakan tahun 2018-2020 denga total 247, dataset tersebut dibagi menadi 2 bagian, yakni 152 data training dan 75 data testing, dimana memprediksi siswa yang lulus kriteria masuk pasar kerja sebanyak 57 orang dan yang tidak lulus kriteria masuk pasar kerja sebanyak 18 orang. Hal ini bereda dengan data testing siswa dimana yang lulus kriteria masuk pasar kerja sebanyak 46 orang dan yang tidak lulus kriteria masuk pasar kerja sebanyak 29 orang dan akurasi yang diperoleh mendapatkan nilai sebesar 77,33%.  Jadi, dapat disimpulkan bahwa pengujian menggunakan metode Naïve Bayes dapat mendukung untuk memprediksi lulus tidaknya siswa-siswi dalam masuk pasar kerja.
Prime osservazioni sulle glosse Virgili tramandate nel Liber glossarum
Authors: Gorla Silvia
Published: February 2023

Through the analysis of some Liber Glossarum glosses with the label Virgili , it is possible to develop insight into their content and form, namely their relation with the Virgilian exegesis, their vocabulary (sometimes Christian or Late Latin), their level of corruption. The Virgilian lemmas examined are, in order : Adrasti pallentis imago ; Galatea reliquit ; adsuetumque malo Ligurem ; origine ; armiger ; macte (mactate) ; aerea limina (aeratae fores) ; aurea fibula and hibernam ; addas.
Impact of Standardisation and Vehicularization: The case of Tɔŋúgbe in South-Eastern Ghana and Fula (Adamawa) in Northern Cameroon
Authors: Boutché Jean-Pierre , Dodzi Kpoglu Promise
Published: February 2023

This paper investigates the impacts of standardisation and vehicularizationon linguistic diversity. We demonstrate in the light of Tɔŋúgbe in south-eastern Ghana and vehicular Fula in Northern Cameroon that natural languages are social objects in motion, which can be institutionally and/ or socially subjected to promotion or demotion. In the first part, we show that Tɔŋúgbe, one of the dialects of the Ewe language, brings to the fore data that is not captured by standard Ewe even though such data is critical to the understanding and study of not just the Ewe language, but also, the whole Gbelanguage cluster. We concentrate on the definite article in the dialect and demonstrate that, contrary to what pertains in standard Ewe, NP determination with the definite article in Tɔŋúgbe is an intersection between syntax and phonology. In the second part we argue that vehicularizationas in the case of Fula Adamawa, appears to be a double-egged sword which on one hand promotes a language or a variety among others and, on the other hand, causes the demotion of minority languages or varieties.
Jabuti Project: Maze Solver Micromouse Robot
Authors: Ana Luiza Cantharino Maciel  , Maria Eduarda Benfica Gonçalves  , Vítor YanMiranda Basañez  , João Vitor Silva Mendes
Published: February 2023

The present article discusses the development of the Jabuti Project, which consists of a micromouse, a maze solver robot. The project mainly aims to build a low-cost robot and to assist university students in the practical study of robotics. To solve the maze, a wall-follower algorithm was implemented for anarduino, and stepper motors constituted a PCB of the project to provide more stability to the robot, infrared sensors for area recognition, and a caster wheel to direct it. In conclusion, the circuit parts will be estimated to be assembled and integrated to implement the developed logic with tests in the physical prototype.
Kemampuan Gerak Dasar Atletik Lari Jarak Pendek pada Siswa Kelas VIII B SMP PGRI 7 Denpasar
Authors: Putra Dalem Anak Agung Gde Bagus Maheswara , Putra Laksana Anak Agung Ngurah , Adnyana I Wayan
Published: February 2023

ABSTRAK

Penelitian ini bertujuan untuk mengetahui kemampuan gerak dasar atletik lari jarak pendek pada siswa kelas VIII B SMP PGRI 7 Denpasar. Jenis penelitian ini adalah kualitatif deskriptif. Adapun informan dalam penelitian ini adalah 6 informan yang terdiri dari 5 siswa kelas VIII B dan 1 informan guru penjaskes kelas VIII B SMP PGRI 7 Denpasar. Jenis data kualitatif dengan kata-kata tertulis dan sumber data yang digunakan dalam penelitian ini adalah sumber data primer dan sekunder. Sumber data primer yang digunakan dalam penelitian ini pengamatan dan perhitungan langsung, data skunder yang digunakan yaitu data wawancara dan kuesioner. Teknik pengumpulan data menggunakan triangulasi yaitu observasi, wawancara, dan kuesioner. Adapun analisis data yang digunakan yaitu analisis Miles dan Huberman yaitu analisis data model interaktif yang melalui langkah-langkah pengumpulan data, reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian ini menunjukkan bahwa belum maksimalnya kemampuan siswa dalam gerak dasar atletik lari jarak pendek yaitu kategori cukup. Dengan persentase hasil nilai observasi sebanyak 16 siswa (50%) berada di kategori baik dan sebanyak 16 siswa (50%) berada dalam kategori cukup. Hasil data wawancara menunjukkan belum maksimalnya proses pembelajaran karena factor penghambat. Hasil data kuesioner menunjukkan sebanyak 12 siswa (37,5%) dalam kategori baik dan sebanyak 20 siswa (62,5%) berada dalam kategori cukup.dari ketiga data tersebut mendapatkan hasil data yang belum maksimal dengan kategori cukup dalam kemampuan gerak dasar atletik lari jarak pendek pada siswa kelas VIII B SMP PGRI 7 Denpasar.

Kata kunci :Kemampuan Gerak Dasar, Atletik, Lari Jarak Pendek.
ANALISIS TRANSPARANSI DAN AKUNTABILITAS PEMERINTAH DALAM PENGELOLAAN ALOKASI DANA DESA DI DESA X
Authors: Saputra Dian , Fitriwati Lara
Published: February 2023

Penelitian ini bertujuan untuk menggali dan mendeskripsikan penerapan prinsip transparansi dan akuntabilitas dalam pengelolaan alokasi dana desa di X. Penelitian ini merupakan jenis penelitian kualitatif. Penggunaan indikator transparansi, perencanaan akuntabilitas, pelaksanaan akuntabilitas, akuntabilitas penyelenggaraan pelaporan pertanggungjawaban dan akuntabilitas pertanggungjawaban sebagai dasar yang digunakan untuk mengetahui efektivitas penerapan prinsip transparansi dan akuntabilitas di Desa X. Sumber data diperoleh melalui wawancara dan dokumentasi dengan mengumpulkan dokumen-dokumen yang disediakan oleh Desa X Teknik analisis data adalah metode deskriptif. Hasil penelitian ini menemukan bahwa penerapan prinsip transparansi dalam pengelolaan alokasi dana Desa di Desa X belum berjalan efektif karena tidak adanya papan pengumuman dan tidak adanya alamat pengaduan. Selain itu, ditemukan pula penerapan asas akuntabilitas yang belum efektif karena belum ada buku tertulis untuk uang muka bantuan, laporan realisasi kegiatan tidak dilaporkan, program sektoral, program daerah dan lain-lain. program yang masuk ke desa tidak tepat sasaran.
PENGARUH KODE ETIK PROFESI AKUNTAN PUBLIK TERHADAP OPINI AUDIT YANG DIHASILKAN AUDITOR PADA KAP YANG TERDAFTAR DI JAWA TIMUR
Authors: Dwijendra Ida Gusti Bagus Ngurah , Asyik Nur Fadjrih
Published: February 2023

Penelitian ini merupakan penelitian kuantitatif yang bertujuan untuk mengetahui pengaruh kode etik profesi akuntan publik terhadap kualitas audit yang dihasilkan oleh auditor pada Kantor Akuntan Publik di Jawa Timur. Penelitian ini menggunakan auditor yang bekerja khususnya di Jawa Timur sebagai sampel. Data penelitian diperoleh dari data kuesioner dengan jumlah responden sebanyak 35 orang. Teknik analisis data yang digunakan adalah dengan menggunakan uji validitas. reliabilitas, dan regresi linier dengan bantuan SPSS for windows. Hasil penelitian menunjukkan bahwa prinsip integritas. objektivitas dan profesionalisme tidak berpengaruh signifikan terhadap kualitas audit, sedangkan prinsip kompetensi berpengaruh signifikan terhadap kualitas audit. Dari hasil tersebut. auditor independen harus memperhatikan kompetensi untuk menciptakan kualitas audit yang baik.
FAKTOR-FAKTOR YANG MEMPENGARUHI KEPATUHAN WAJIB PAJAK BADAN SUATU STUDI DI KPP PRATAMA TAMPAN PEKANBARU
Authors: Liviawati Liviawati , Syofyan Azhari
Published: February 2023

Pajak merupakan sumber penerimaan utama negara yang digunakan untuk membiayai pengeluaran pemerintah dan pembangunan,yang setiap tahunnya akan semakin meningkat. Oleh sebab itu pemerintah berusaha meningkatkan penerimaan negara dari sektor pajak. Berdasarkan sensus penduduk tahun 2021, jumlah penduduk Indonesia mencapai 68 juta rumah tangga akan tetapi yang memiliki NPWP hanya 19,9 juta saja. Begitu juga dengan wajib pajak badan, jumlah badan yang memiliki NPWP hanya 54% dari jumlah yang seharusnya ( jumlah badan usaha yang ada di Indonesia 1,6 juta, yang memiliki NPWP 872.995 perusahaan).       Melihat data diatas dapat kita katakan bahwa kepatuhan wajib pajak di Indonesia masih rendah, dan ini diperlukan kerja keras dan langkah cerdas agar potensi penerimaan pajak ini dapat ditingkatkan oleh pemerintah. Oleh Sebab itu penelitian ini melakukan analisa mengenai faktor apa yang mempengaruhi kepatuhan wajib pajak. Adapun faktor yang diteliti pada penelitian ini adalah kesadaran wajib pajak, sangsi pajak, transparansi dan medernisasi. Hasil dari penganalisaan terhadap faktor yang mempengaruhi kepatuhan wajib pajak secara parsial, kesadaran wajib pajak, sangsi pajak, transparansi dan modernisasi berpengaruh secara signifikan terhadap kepatuhan wajib pajak.Hal ini perlu diketahui oleh pemerintah agar pemerintah dapat merancang strategi yang tepat untuk meningkatkan penerimaan dari pajak. Studi ini dilakukan pada Kantor Pelayanan Pajak Pratama Tampan kota Pekanbaru.
FAKTOR PENENTU MINAT MAHASISWA AKUNTANSI BERKARIR DI LEMBAGA KEUANGAN SYARIAH
Authors: Challen Auliffi Ermian , Vidaryanti Retno , Karimulloh Karimulloh , Simon Zainal Zawir
Published: February 2023

Penelitian ini bertujuan untuk mengetahui pengaruh pengetahuan akuntansi syariah, lingkungan kerja, dan pertimbangan pasar kerja terhadap minat mahasiswa akuntansi karir di lembaga keuangan syariah. Sampel penelitian adalah mahasiswa program studi akuntansi Universitas Yarsi. Teknik pengambilan sampel dalam penelitian ini adalah convenience sampling. Metode analisis yang digunakan adalah regresi linier berganda. Hasil penelitian menunjukkan bahwa pengetahuan akuntansi syariah dan pertimbangan pasar tenaga kerja berpengaruh positif terhadap minat mahasiswa akuntansi untuk berkarir di lembaga keuangan syariah. Sedangkan lingkungan kerja tidak mempengaruhi minat mahasiswa akuntansi untuk berkarir di lembaga keuangan syariah.
WANITA DI DEWAN PERUSAHAAN: REVIU DAN AGENDA PENELITIAN
Authors: Anita Rizqa , Salmiah Neneng , Adino Intan , Abdillah Muhammad Rasyid
Published: February 2023

Penelitian ini bertujuan untuk memahami konsep mengenai keberadaan dewan wanita di perusahaan dalam mengidentifikasi berbagai isu, seperti manfaat memiliki direktur wanita, strategi dalam mendorong partisipasi wanita, serta arah penelitian di masa yang akan datang. Penelitian ini juga menjelaskan bahwa proporsi wanita di dewan perusahaan seluruh dunia masih sangat rendah. Representasi wanita dalam posisi manajemen, sifat industri, ukuran organisasi menentukan partisipasi wanita di dewan perusahaan. Memotivasi karyawan wanita, kesadaran mengenai filantropi sosial, dan meningkatkan kinerja perusahaan merupakan manfaat yang sangat berbeda dalam mendorong organisasi ketika perusahaan memiliki lebih banyak wanita di dewan.
Du rôle de la nature dans le design moderniste
Authors: Elalouf Jérémie
Published: February 2023

Bruno Latour a avancé qu’il était possible de comprendre les arts et les sciences « modernes » comme relevant d’un même type de rapport au monde, le naturalisme. Nous proposons de discuter cette thèse en nous intéressant plus spécifiquement à l’histoire du design, à travers une analyse de textes de László Moholy-Nagy. Notre argument est que le design moderne a proposé une critique du naturalisme, bien que cette critique ne soit pas dénuée d’ambivalence et d’ambiguïtés.
La fermentation comme récit contemporain de la nature
Authors: Plédran Gwénaëlle
Published: February 2023

La fermentation met en avant une biodiversité complexe et invisible. À la frontière de l’art, du design et des sciences, elle appelle à la reconnaissance d’une culture non humaine, à une décolonisation de nos regards et à une reconfiguration du rapport entre nature et culture. Je tente ici d’exposer une recherche-création interrogeant nos représentations du vivant, d’établir des liens entre goût et sol à partir du concept de bactério-terroir, de penser la fermentation comme récit contemporain de la nature.
Turnitin no determina plagio
Authors: Ybaseta-Medina Jorge
Published: February 2023

La integridad científica es la principal preocupación de la comunidad investigadora mundial (1). Ante la posibilidad de prácticas o actitudes antiéticas en el proceso de la elaboración de la tesis, las universidades están en la necesidad de usar un software que se encargue de comparar las similitudes del texto presentado con obras que se encuentren publicadas en otros portales que están registrados en su servidor, si encuentra similitudes las muestra indicando también la fuente original (2).

El software Turnitin proporciona un "índice de similitud”, lo cual no significa plagio, ya que el plagio se comete cuando no se cita la fuente original de donde se copió o interpretó un contenido de la obra evaluada, y el turnitin no indica si existe o no dentro del texto un llamado o cita hacia una referencia bibliográfica que está dentro del texto de la obra o en la sección referencias bibliográficas, esta herramienta podría tener una contribución mayor si el informe resultante de la evaluación con el Turnitin es usado tanto por docentes como por alumnos para revisar, corregir y/o agregar las fuentes de información consultadas durante el desarrollo de una investigación científica y la preparación del manuscrito final, lo que ayudaría a garantizar calidad académica y científica de las obras publicadas ya sea como informes de investigación, tesis o artículos científicos (1,2).
Principales manifestaciones renales en el paciente con síndrome post-COVID-19: Aspectos clínicos.
Authors: Serna-Trejos Juan Santiago , Bermudez-Moyano Stefanya Geraldine , Diaz- Giraldo Valentina
Published: February 2023

La infección generada por SARS-CoV-2 generó un despliegue amplio en la generación de literatura en relación a las complicaciones generadas en los diferentes tejidos y por consiguiente sistemas , esto se traduce en complicaciones propias a estados agudos de la infección por SARS-CoV-2 como las secuelas temporales o permanentes en el paciente que cursó con la infección, dichas complicaciones suelen aparecer en los primeros 3 meses posterior a la exposición e infección del virus, dicho periodo ha generado una amplia aparición de signos y síntomas que se enmarcan dentro del síndrome POST-COVID (SPC) (1). El tejido renal tiene gran expresión de receptores de enzima convertidora de angiotensina - 2 ( ACE-2) específicamente localizados a nivel de túbulos proximales y podocitos parietales (figura 1), siendo blanco de interacción directa con el virus , puesto que se ha demostrado su gran afinidad por estos receptores, generando grandes cambios inflamatorios a este nivel traducidos en trastornos de coagulación e isquemia, los cuales confluyen en manifestaciones relacionadas a lesión renal aguda.
COMPARATIVE ANALYSIS OF THE IDLE MOVE LENGTH WHEN MAKING T-TURNS BY A MOUNTED MACHINE TRACTOR UNIT IN A FIELD OF IRREGULAR SHAPE
Authors: TRENDAFILOV Krasimir , TIHANOV Galin
Published: February 2023

The productivity of machine-tractor units depends on the length of the idle move performed in the headland. Analytical dependences for determining the length of the idle move when making T-turns by a machine-tractor unit with a mounted machine in a field of irregular shape have been specified in the article. Five types of T-turns have been considered in two variants – open turn and closed turn. Each of them is carried out in two directions of motion. A total of 20 variants of turns have been described. The methodology for determining the idle move length for a specific machine-tractor unit consisting of a tractor and a mounted row seeder has been demonstrated. It has been established that the idle move of the machine-tractor unit had the smallest length when the direction of making the turn is from right to left. For three of the studied turns, the idle move length in open and closed turns is the same when travelling from right to left. Right-to-left open and closed T-turns have been shown to provide the same idle move length of the unit in the headland, which is the smallest compared to the other turns.
Parameters for ferroelectric phase stabilization of sputtered undoped hafnium oxide thin films
Authors: Berg Fenja , Lübben Jan , Böttger Ulrich
Published: February 2023

In this work, various stabilization factors for the ferroelectric phase of undoped hafnium oxide prepared by physical vapour deposition were investigated. The capping of the thin films with platinum top electrodes before annealing, as well as the amount of oxygen during sputter deposition and subsequent annealing was shown to have a significant influence on the resulting ferroelectric properties and phase of the HfO
x
layer. When the prepared films were not capped, only one specific set of process parameters was found to lead to the formation of the ferroelectric phase. We conclude that capping is a crucial condition for stabilizing the ferroelectric phase. Furthermore, it is shown that the amount of oxygen supply during all fabrication processes determines the resulting ferroelectric phase fraction for capped samples. Increasing the oxygen flow during sputtering and annealing results in a larger monoclinic phase fraction and thus a decrease of the remanent polarization.
Tumor-immune microenvironment lab chip integrating liquid-dielectrophoresis operation
Authors: Chen Y.-C. , Lee K.-Y. , Sun W.-L. , Huang W.-C. , Wang Y.-S. , Chang W.-C. , Liu C.-H.
Published: February 2023

Immunotherapy drugs have effects on the activity and efficacy of T cells in cancer therapy. However, the selection of personalized medicines in the clinic is difficult. Therefore, how to simplify the process is an important issue. This study presented a three-dimensional culture in a microfluidic device. Cancer cells were cultured in the center with GelMA (Gelatin methacryloyl) to mimic the tumor tissue, while microchannels were used to mimic immune cells in peripheral blood in this chip. The T-cell infiltration into the simulated tumor environment in the chip was observed by an imaging system. In addition, a reduction in the viability of cancer cells following T-cell infiltration was also observed. Moreover, the mortality rate of cancer cells increased after cancer cells were treated with atezolizumab or pembrolizumab. In conclusion, these results demonstrate the potential of our chip for cancer research and clinical drug efficacy.
Atomistic simulations of thermal conductivity in novel GeC channel materials from first-principles molecular dynamics calculations
Authors: Lee Shao-Chen , Chen Yu-Ting , Liu Cheng-Rui , Wang Sheng-Min , Tang Ying-Tsan
Published: February 2023

Silicon carbide (SiC) has emerged as a candidate material for next-generation power devices to replace traditional silicon power devices. They feature smaller size, faster switching speed, simpler cooling, and greater reliability than Si-MOSFETs. To date, however, the thermal conductance of GeC-based power MOSFETs is unclear. This work explains the heat transfer of GeC by simulating the thermal conductivity through molecular dynamics (MD) and proposes a potential 4H-GeC power MOSFET with wide bandgap and high thermal conductivity to replace Si-MOSFETs.
Compact aerial ultrasonic source integrating the transverse vibration part with the bolt-clamped Langevin transducer
Authors: Ohfuchi Ryota , Kasashima Takashi , Itoh Shinsuke , Asami Takuya , Miura Hikaru
Published: February 2023

We have previously developed a compact circular vibrating plate aerial ultrasonic source with a grooved uniform rod that can produce a large vibration displacement by using piston vibration and emit intense sound waves perpendicular to the vibration surface. In this paper, to create a compact ultrasonic source that can radiate intense aerial ultrasonic waves, we produced a compact aerial ultrasonic source integrating the transverse vibration part with a bolt-clamped Langevin transducer and we investigated the sound source characteristics. These results demonstrated that compared with a conventional source, the length of our source was shorter, the sound pressure was higher, and its structure was simpler.
Characterization of magnesium channeled implantation layers in GaN(0001)
Authors: Suyama Atsushi , Kawanowa Hitoshi , Minagawa Hideaki , Maekawa Junko , Nagamachi Shinji , Aoki Masahiko , Ohta Akio , Makihara Katsunori , Miyazaki Seiichi
Published: February 2023

The effect of Mg channeled implantation into epitaxially grown gallium nitride (GaN) was studied using Hall-effect measurements, photoluminescence (PL), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM) and Rutherford backscattering spectroscopy (RBS). In the channeled implantation, deeper profiles were obtained with lower implantation energy and less damage compared to random implantation. The donor–acceptor pair signal at ∼3.28 eV, suggesting that Mg is activated, was confirmed by PL measurement when the ion dose and implantation energy are 1 × 1014 cm−2 and 20 keV, respectively. However, even with channeled implantation, several types of defects including point defects and oblong defects as seen in the random implantation were observed by TEM/STEM analysis. RBS analysis showed slightly worse crystal qualities in channeled implantation compared to non-implanted samples. Mg channeled implantation is useful to achieve deeper profiles (>1 μm), but further condition tuning of process will be necessary for practical application.
Enhanced tunneling current and low contact resistivity at Mg contacts on heavily phosphorus-ion-implanted SiC
Authors: Hara Masahiro , Kaneko Mitsuaki , Kimoto Tsunenobu
Published: February 2023

Mg contacts are formed on P+-implanted SiC (1 × 1017–8 × 1019 cm−3) and their current–voltage characteristics and contact resistivity (ρ
c) are analyzed. The current density through the contacts on the ion-implanted SiC is several orders of magnitude larger than that on SiC epitaxial layers with the same doping density. For the Mg contacts formed on ion-implanted SiC with 8 × 1019 cm−3, a very low ρ
c of 2 × 10−6 Ωcm2, which is comparable to that of typical Ni-based contacts sintered at high temperature, is achieved without any thermal treatment after electrode deposition.
Analisis Performa Terbang Meluncur (Glide Flight) Pada Pesawat Glider F1H Dengan Variasi Parameter Ketinggian Terbang
Authors: Tajuddin Aswan , Franciscus Freddy , Saprudin Budi
Published: February 2023

Aeromodelling dapat didefinisikan sebagai kegiatan olah raga dirgantara yang terkait dengan perencanaan, perancangan pembuatan, pengujian serta penerbangan pesawat model itu sendiri. Glider (F1H) adalah jenis pesawat layang model yang menerbangkannya dengan cara ditarik dengan tali yang panjangnya tertentu. Didalam FAI (Federation Aeronautique International) sporting code, perlombaan glider A1 diberi kode internasional F1H yang dimasukkan ke dalam kategori terbang bebas yang tidak dikendalikan. Pesawat model ini masih boleh diperlengkapi degan berbagai perangkat pengendalian otomatis ataupun manual. Dalam tugas akhir ini mencoba menganalisis performa tebang meluncur dengan parameter variasi ketinggian terbang serta untuk mengetahui karakteristik prestasi terbang pesawat dan hasil percobaan guna memberikan alternative baru dalam hal manufacture. performa tebang meluncur dengan mengetahui karakteristik prestasi terbang pesawat dimana menghasilkan Lift 1,75N, Drag 0,093N, serta menghasilkan kecepatan jelajah sebesar 4,6 m/det. Prestasi terbang dan stabilitas terbang pesawat glider A1 (F1H) ini sangat baik karena pesawat glider ini mampu melayang diudara dengan waktu diatas 2 menit.]
IDENTIFIKASI MIKOSIS PARU PADA PASIEN TUBERKULOSIS DENGAN BTA POSITIF DI KOTA JAMBI
Authors: Syarthibi Ahmad , Mustopa Rd , Anggraini Anggraini
Published: February 2023

Latarbelakang: Pasien TB BTA Postif membutuhkan waktu lama makan obat. Antibiotik memiliki efek secara terapeutik yaitu menyerang organisme infeksius juga mengeliminasi bakteri lain yang bukan penyebab penyakit, menyebabkan perubahan ekosistem flora normal sehingga terjadi gangguan alami ekologi mikrobial, ketidak seimbangan flora normal dapat mengakibatkan kolonisasi jamur saluran napas dan akan menginvasi mukosa serta berkembang biak. Penelitian ini bertujuan untuk menganalisis kejadian infeksi jamur pada pasien TB BTA positif, meliputi kejadian infeksi jamur pada pasien,  mengetahui jenis jamur yang menginfeksi pasien serta mengetahui infeksi jamur berdasarkan lama mengkonsusi OAT pada pasien TB BTA positif.

Metode: Desain Penelitian deskriptif cross sectional bertempat di puskesmas Rujukan Mikroskopis kota Jambi. Pemeriksaan TB dilakukan di puskesmas sedangkan  pemeriksaan jamur dilakukan di laboratorium Mikologi Poltekkes Kemenkes Jambi Jurusan TLM.  total sampling dilakukan pada periode pengambilan data Juli - Agustus 2021.

Hasil: Pemeriksaan kultur didapatkan hasil 47,6% ditemukan infeksi jamur pada sputum, lebih banyak ditemukan  pada pasien laki-laki (53,8%) dan pasien TB paru dengan lama pengobatan lebih dari 2 bulan/fase lanjut  (50%), ditemukan Candida Sp sebagai penyebab terbanyak mikosis pada sputum (60%),  Aspergilus Sp (30%) dan ditemukan adanya koloni jamur berbeda (10%) penyebab mikosis.

Kesimpulan: Mikosis ditemukan pada sputum pasien TB Paru dengan pengobatan lebih dari 2 bulan serta Sebagian besar diakibatkan infeksi Candida Sp.
HUBUNGAN KADAR CA, ZN & FE SERUM PADA PASIEN TB DAN PASIEN TB RESIST OAT DI KOTA JAMBI
Authors: Latifah Aminahtun , Kurniasih Dewi , Muslina Muslina
Published: February 2023

Latar Belakang : Angka kesakitan dan kematian tuberkulosis (TB) tertinggi ada di negara berkembang, termasuk di Indonesia. Status gizi penderita TB diperlukan untuk menilai keefektifan konseling di semua sarana kesehatan. Penelitian ini bertujuan mengetahui status gizi khususnya mikroelemen Ca, Zn dan Fe penderita TB dan TB resisten OAT.

Metode: Penelitian dilakukan di 4 Puskesmas di Kota Jambi. Waktu penelitian dilaksanakan pada tahun 2021 dengan menggunakan metode penelitian crosssectional. Data sekunder merupakan status penderita/responden yang diperoleh dari puskesmas tempat responden melakukan pengobatan. Data primer diperoleh melalui wawancara dan pemeriksaan laboratorium pada 25 responden penderita TB non resisten OAT dan 5 responden penderita TB resisten OAT. Pemeriksaan kadar kalsium, zink dan besi dilakukan di laboratorium kesehatan daerah provinsi Jambi..

Hasil: Berdasarkan hasil penelitian diperoleh bahwa terdapat perbedaan bermakna kadar besi antara penderita TB resisten OAT dan non resisten OAT (p-value=0,00). Sementara tidak ada perbedaan bermakna yang ditemukan pada kadar Ca (p-value=0,235) dan kadar Zn (p-value = 0,92).

Kesimpulan: Terdapat perbedaan yang signifikan kadar zat besi antara penderita TB dan TB resisten OAT. Sementara kadar kalsium dan Zinc tidak mengalami perbedaan bermakna.
PENGARUH PENGGUNAAN TLSO (THORACAL LUMBAL SACRAL ORTHOSIS) TERHADAP ALIGMENT VERTEBRAE PADA LANSIA
Authors: Ningsih Cica Tri Mandasari , Fathi Muhammad
Published: February 2023

Latar Belakang:  Perubahan  yang  paling  banyak  terjadi pada vertebra meliputi kepala condong ke depan (kifosis servikalis), peningkatan kurva kifosis torakalis, kurva lumbal mendatar (kifosis lumbalis), penurunan ketebalan diskus  intervertebra  sehingga  tinggi  badan  berkurang. Tujuan dari penelitian ini adalah untuk menganalisis penggunaan  TLSO  terhadap  postur  alignment  vertebrae  pada  lansia  yang mengalami  Kyphosis

Metode: menggunakan metode quasi eksperimental pre and post test design. Pengambilan Sample menggunakan purposive sample dengan jumlah respoden 30 lansia. Setiap responden  akan diberikan intervensi TLSO, kemudian diukur untuk alignment vertebrae sebelum dan setelah perlakuan. Untuk Analisa data menggunakan uji Paired Samples T-test.

Hasil: Penggunaan TLSO berpengaruh terhadap aligment sebelum dan setelah intervensi yang secara statistik signifikan (t = 35,98,  mean difference = 8,34 dan p value = 0,000)

Kesimpulan: Penggunaan TLSO dapat menggurangi lengkung alignment vertebrae dan dapat mengurangi resiko jatuh pada lansia.
Pixel Optimization via Genetic Algorithm of a Flat Epidermal Antenna for Fat Channel Communication
Authors: Gaffoglio Rossella , Giordanengo Giorgio , Righero Marco , Musacchio Adorisio Giuseppe , Mandal Bappaditya , Perez Mauricio David , Scherberger Hansjörg , Augustine Robin , Vecchi Giuseppe
Published: February 2023

Fat intra-body communication (Fat-IBC) is a novel concept of communication through the low-loss fat tissue layer of the body. This new data transmission approach is promising for the implementation of wireless, in-body, bidirectional Brain-Machine-Body connectivity, which will profoundly impact different fields, such as brain implants with read/write capability and human-like artificial sensors and limbs. In this paper, we apply an evolutionary algorithm combined with a full-wave electromagnetic solver to optimize a flat epidermal antenna, to improve the radiation coupling into the body and favor the signal transmission in the subcutaneous fat layer. The application of this method to a skin-fat communication channel shows satisfactory results when both the antennas of the link are considered and materials with high relative permittivity are used. A good radiation coupling into the body is observed, and transmission losses lower than 5 dB/cm are achieved.
Prayatul Matrix for Evaluating Clustering Algorithms: A Direct Comparison Approach
Authors: Biswas Anupam
Published: February 2023

Performance comparison of clustering algorithms are often done in terms of different confusion matrix based scores obtained on test datasets when ground truth is available. However, a dataset comprises several instances having different difficulty levels. Therefore, it is more logical to compare effectiveness of clustering algorithms on individual instances instead of comparing scores obtained for the entire dataset. In this paper, an alternative approach is proposed for direct comparison of clustering algorithms in terms of individual instances within the dataset. A direct comparison matrix called Prayatul Matrix is prepared, which accounts for comparative outcome of two clustering algorithms on different instances of a dataset. Five different performance measures are designed based on prayatul matrix. Theoretical analysis shows proposed measures satisfy five important properties such as scale invariance, data invariance, permutation invariance,  monotonicity and continuity.  Efficacy of the proposed approach as well as  designed measures is analyzed empirically with four clustering algorithms on widely used standard datasets. Indications of proposed measures are compared with confusion matrix-based measures as well as other three permutation invariant measures. Results are evident that the newly designed measures are capable of giving some important insight about the clustering algorithms, which were impossible with the existing measures.
UAV Coverage Path Planning with Quantum-based Deep Deterministic Policy Gradient
Authors: Silvirianti Silvirianti , Narottama Bhaskara , Shin Soo Young
Published: February 2023

This study proposes quantum-based deep deterministic policy gradient (Q-DDPG) and quantum-based recurrent DDPG (Q-RDDPG) schemes for time-series optimization in UAV communications. Herein, Q-DDPG based actor-critic reinforcement learning is utilized to optimize action selections in a large state and continuous action space. In this scheme, quantum models are exploited to reduce computational complexity and training loss. As a particular case, Q-DDPG and Q-RDDPG are employed for trajectory optimization and dynamic resource allocation in UAV communications. Quantum circuits of the Q-DDPG schemes are described to showcase their implementation in noisy intermediate-scale quantum (NISQ) computers. The results demonstrate that Q-DDPG and Q-RDDPG schemes achieved higher rewards with lower training losses compared to classical DDPG.
Analysis of stochastic mutation in the evolution of bidding behavior for power generation enterprises
Authors: Mo Jun , Yang Hui
Published: February 2023

In the bidding process in the power generation market, enterprises often exhibit speculative behaviors due to the loopholes in bidding rules. To explore the evolution of power generation enterprises from a benign bidding state to a speculative bidding state, an evolutionary game model is established. Based on the replicator dynamics equation, an evolutionary game model of a power generation market containing multiple power generation enterprise groups with different bidding strategies is constructed by introducing the relationship factors of the strategies. Then, to analyze the internal mechanism of the outbreak of speculative behavior, the replicator dynamics equation is transformed into a classical sharp point mutation model. On this basis, Gaussian white noise is introduced to construct the stochastic catastrophe model. The influence of the random disturbance term on the stability of the bidding behavior of enterprises is discussed from the perspective of the trajectory difference between the analytical solution and the numerical solution of the stochastic differential equation. The results show that the final decision state of the group strategy and the convergence time of group evolution to this state depend on the value of the strategy relationship factor. The emergence of random disturbances will lead to heterogeneous decision-making actions within the group. That is, the evolution of the group will fluctuate near the strategic equilibrium point. The difference between the analytical solution and the numerical solution of the stochastic catastrophe model can increase the possibility of a sudden change in the bidding strategy state and thereby decrease the stability of the bidding behavior.
A Differential Delay Cell for Ring Oscillators
Authors: Singh Puneet , SINGH Mayank Kumar , Sakare Mahendra
Published: February 2023

This paper presents a differential delay cell (DDC) for a 3-stage current-starved ring voltage-controlled oscillator (CSRVCO). In the proposed delay cell, pass transistors and a pair of back-to-back transistors are connected in a symmetric structure that helps get less jittery output by providing similar charging and discharging paths from the load capacitor. The current flows from similar paths with the same type and number of transistors in the proposed DDC-based CSRVCO. For verifying the DDC operation, the 3-stage CSRVCO using the proposed DDC is implemented with a standard 65nm CMOS technology with 1V supply. Post-layout simulation results confirm the correct operation of the proposed DDC using the CSRVCO with minimal jitter at the output. The proposed CSRVCO can be tuned from 0.88 GHz to 2.76 GHz. The phase noise of -94.54 dBc Hz was measured at 1MHz offset frequency for the center frequency of 2.76 GHz. The CSRVCO was designed using the proposed DDC occupied area 1198.43 μm2, and dissipated power is 5.19mW.