bluuebunny/crossref_metadata_2025 huggingface dataset:
Dynamic Scaling of a Wing Structure Model Using Topology Optimization
Authors: Oliveira Éder , Sohouli Abdolrasoul , Afonso Frederico , da Silva Roberto Gil Annes , Suleman Afzal
Published: May 2022

In this paper, a dynamic scaling methodology is introduced to devise reduced scaled models of aircraft with the objectives of minimizing the development cost and exploring the design space. A promising way to accomplish this is using Topology Optimization (TO) for Additive Manufacturing (AM). Here, TO is employed to design a reduce scale model by matching its natural frequencies and mode shapes to those of a full scale model. Different TO strategies based on density approach are tested with the goal of achieving a dynamically scaled structure that can be manufactured. To achieve this goal, the TO solution should be free from intermediate densities, which is observed for some TO strategies but not all. When no penalization factor is applied: (i) the relative difference between natural frequencies is less than 1% and (ii) the estimated Modal Assurance Criteria (MAC) metric to evaluate the correlation between mode shapes is close to the ideal identity matrix. These results demonstrate the effectiveness of the dynamic scaling methodology. However, when using a penalization factor to avoid intermediate densities, the dynamic behavior correlation between full and scaled models degrades. This trend is more visible in the MAC metric, where off-diagonal terms above 20% and diagonal terms below 90% appear.
Bearing Faulty Prediction Method Based on Federated Transfer Learning and Knowledge Distillation
Authors: Zhou Yiqing , Wang Jian , Wang Zeru
Published: May 2022

In this paper, a novel bearing faulty prediction method based on federated transfer learning and knowledge distillation is proposed with three stages: (1) a “signal to image” conversion method based on the continuous wavelet transform is used as the data pre-processing method to satisfy the input characteristic of the proposed faulty prediction model; (2) a novel multi-source based federated transfer learning method is introduced to acquire knowledge from multiple different but related areas, enhancing the generalization ability of the proposed model; and (3) a novel multi-teacher-based knowledge distillation is introduced as the knowledge transference way to transfer multi-source knowledge with dynamic importance weighting, releasing the target data requirement and the target model parameter size, which makes it possible for the edge-computing based deployment. The effectiveness of the proposed bearing faulty prediction approach is evaluated on two case studies of two public datasets offered by the Case Western Reserve University and the Paderborn University, respectively. The evaluation result shows that the proposed approach outperforms other state-of-the-art faulty prediction approaches in terms of higher accuracy and lower parameter size with limited labeled target data.
Running Experimental Research of a Cable-Driven Astronaut on-Orbit Physical Exercise Equipment
Authors: Li Lailu , Zhang Lixun , Wang Bing , Xue Feng , Zou Yupeng , Song Da
Published: May 2022

Manned spaceflight has already become an important approach to space science exploration, while long-term exposure to the microgravity environment will lead to severe health problems for astronauts, including bone loss, muscle atrophy, and cardiovascular function decline. In order to mitigate or eliminate those negative influences, this paper presents a cable-driven exercise equipment that can be applied in a microgravity environment to render multi-functional on-orbit physical exercise modes for astronauts. First, the structure of cable module and the configuration of the equipment were proposed. Second, a two-level controller was provided, including the cable tension distribution algorithm and tension controller of the cable module. A safety protection strategy was proposed to ensure the safety of the astronaut. Furthermore, simulation and running experiment studies of the equipment were conducted, the results demonstrate that the load force of the equipment could achieve a high-level accuracy, and the exercise status of the astronaut could be monitored and protected in the meantime. Therefore, physical exercises could be carried out by the assistance of the equipment to keep astronauts in good shape on-orbit.
Object Tracking for an Autonomous Unmanned Surface Vehicle
Authors: Lee Min-Fan Ricky , Lin Chin-Yi
Published: May 2022

The conventional algorithm used for target recognition and tracking suffers from the uncertainties of the environment, robot/sensors and object, such as variations in illumination and viewpoint, occlusion and seasonal change, etc. This paper proposes a deep-learning based surveillance and reconnaissance system for unmanned surface vehicles by adopting the Siamese network as the main neural network architecture to achieve target tracking. It aims to detect and track suspicious targets. The proposed system perceives the surrounding environment and avoids obstacles while tracking. The proposed system is evaluated with accuracy, precision, recall, P-R curve, and F1 score. The empirical results showed a robust target tracking for the unmanned surface vehicles. The proposed approach contributes to the intelligent management and control required by today’s ships, and also provides a new tracking network architecture for the unmanned surface vehicles.
Cascading Failure Analysis of Hierarchical Industrial Wireless Sensor Networks under the Impact of Data Overload
Authors: Lv Hongchi , Wu Zhengtian , Zhang Xin , Jiang Baoping , Gao Qing
Published: May 2022

As industrialization accelerates, the industrial sensor network environment becomes more complex. Hierarchical multi-cluster wireless sensing network topology is generally used due to large-scale industrial environments, harsh environments, and data overload impact. In industrial wireless sensor networks, the overload of some nodes may lead to the failure of the whole network, which is called cascading failure. This phenomenon has incalculable impact on industrial production. However, cascading failure models have mainly been studied for planar structures, and there is no cascading failure model for hierarchical topologies in industrial environments. Therefore, this paper built a cascading failure model for hierarchical industrial wireless sensor networks (IWSNs) for realistic industrial network topologies. By establishing an evaluation mechanism considering the efficiency of the network and the viability of nodes, the network communication efficiency that is not considered in the traditional evaluation mechanism is solved. In addition, aiming at the problem of network topology changes caused by node failure, dynamic load distribution methods (ADD, SLD) are used to improve network invulnerability. Theoretical analysis and experimental results show that the traditional allocation method (SMLD) does not apply in hierarchical topologies; when the general cluster head node capacity is moderate, increasing the capacity of single-hop cluster head nodes can prevent cascading failures more effectively.
High Quality-Factor and Spectrum-Clean AlN Lamb-Wave Resonators with Optimized Lateral Reflection Boundary Conditions and Transducer Design
Authors: Sun Haiyan , Lv Shitao , Zhang Aoyu , Song Chenguang , Sun Xinyi , Tan Fazeng , Liang Liuhong , Zhu Yinfang , Zhao Jicong
Published: May 2022

This paper presents a high quality-factor (Q) and spectrum-clean AlN Lamb-wave resonator (LWR). The width of its lateral reflection boundary was optimized to weaken the transverse modes’ coupling and wave guiding, and then to improve the LWR’s Q value and spectral purity, which was verified by finite element analysis and experimental characterization. In addition, the series resonance quality factor (Qs) value of the interdigitated (IDT)-Ground LWR is similar to that of the IDT-Floating LWR, but its parallel resonance quality factor (Qp) is nearly doubled, due to the reduction of the electrical loss induced by its static capacitance (C0). The measured results show that the designed LWR with optimized boundary reflection conditions and IDT-Ground structure exhibit Qs and Qp values as high as 4019.8 and 839.5 at 401.2 MHz and 402.9 MHz, respectively, meanwhile, it has good spectral purity. Moreover, the influence of the metal ratio and material of the LWR’s IDT electrodes on the device’s performance was also studied by theoretical analysis and experimental verification.
Resveratrol and Curcumin for Chagas Disease Treatment—A Systematic Review
Authors: Imperador Carlos Henrique Lima , Scarim Cauê Benito , Bosquesi Priscila Longhin , Lopes Juliana Romano , Cardinalli Neto Augusto , Giarolla Jeanine , Ferreira Elizabeth Igne , dos Santos Jean Leandro , Chin Chung Man
Published: May 2022

Chagas disease (CD) is a neglected protozoan infection caused by Trypanosoma cruzi, which affects about 7 million people worldwide. There are two available drugs in therapeutics, however, they lack effectiveness for the chronic stage—characterized mainly by cardiac (i.e., cardiomyopathy) and digestive manifestations (i.e., megaesophagus, megacolon). Due to the involvement of the immuno-inflammatory pathways in the disease’s progress, compounds exhibiting antioxidant and anti-inflammatory activity seem to be effective for controlling some clinical manifestations, mainly in the chronic phase. Resveratrol (RVT) and curcumin (CUR) are natural compounds with potent antioxidant and anti-inflammatory properties and their cardioprotective effect have been proposed to have benefits to treat CD. Such effects could decrease or block the progression of the disease’s severity. The purpose of this systematic review is to analyze the effectiveness of RVT and CUR in animal and clinical research for the treatment of CD. The study was performed according to PRISMA guidelines and it was registered on PROSPERO (CDR42021293495). The results did not find any clinical study, and the animal research was analyzed according to the SYRCLES risk of bias tools and ARRIVE 2.0 guidelines. We found 9 eligible reports in this study. We also discuss the potential RVT and CUR derivatives for the treatment of CD as well.
Validation of low anterior resection syndrome score in Brazil with Portuguese
Authors: Buzatti Kelly C.L.R. , Petroianu Andy , Laurberg Søren , Silva Rodrigo G. , Rodrigues Beatriz D.S. , Christensen Peter , Lacerda-Filho Antonio , Juul Therese
Published: May 2022

Purpose: This study was performed to investigate the convergent validity, discriminative validity, and reliability of the Brazilian version of the low anterior resection syndrome (LARS) score in a population with low educational and socioeconomic levels.Methods: The LARS score was translated into the Portuguese language by forward- and back-translation procedures. In total, 127 patients from a public hospital in Brazil completed the questionnaires. The convergent validity was tested by comparing the LARS score with the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core Module 30 (QLQ-C30) and with patients’ self-reported quality of life. For the discriminative validity, we tested the ability of the score to differentiate among subgroups of patients regarding neoadjuvant radiotherapy, type of surgery, and tumor distance from the anal verge. The test-retest reliability was investigated in a subgroup of 36 patients who responded to the survey twice in 2 weeks.Results: The LARS score demonstrated a strong correlation with 5 of 6 items from the EORTC QLQ-C30 (P<0.05) and good concordance with patients’ self-reported quality of life (95.3%), confirming the convergent validity. The score was able to discriminate between subgroups of patients with different clinical characteristics related to LARS (P<0.001). The agreement between the test and retest showed that 86.1% of the patients remained in the same LARS category, and there was no significant difference between the LARS score numerical values (P=0.80), indicating good reliability overall.Conclusion: The Brazilian version of the LARS score is a valid and reliable instrument to assess postoperative bowel function in a population with low educational and socioeconomic levels.
Lehrbezogenes Wissensmanagement in der Hochschullehre: Entwicklung, Beschreibung und Einsatzmöglichkeiten des Reflexionsinstruments LeWiMa
Authors: Siegel Stefan T. , Krummenauer-Grasser Astrid , Stahl Christine
Published: May 2022

Einer ihrer Kerntätigkeiten nachkommend, erarbeiten Hochschuldozierende jedesSemester unter Einsatz personeller, zeitlicher und finanzieller Ressourcen eineVielzahl an Lehrkonzepten und Lehr-/Lernmaterialien. Lehrbezogenem Wissensmanagement, d. h. der systematischen, effizienten und nachhaltigen Nutzung von Wissen im Kontext Lehre, wird bis dato häufig wenig Bedeutung beigemessen. Das übergreifende Ziel bestand deshalb darin, ein theoriebasiertes und praktikables Reflexionsinstrument zu entwickeln, das es Dozierenden ermöglicht, ihr pädagogisches Arbeitshandeln respektive ihren Umgang mit lehrbezogenem Wissen aus einer wissensmanagementtheoretischen Perspektive in den Blick zu nehmen. In diesem Beitrag beschreiben wir die theoretische Fundierung, die Entwicklung, den Aufbau und wesentliche Einsatzmöglichkeiten des Instruments (LeWiMa). Es soll Dozierenden dabei helfen, ihr lehrbezogenes Wissensmanagement systematisch zu reflektieren, etwaige Verbesserungspotenziale, Kompetenz- und Fortbildungsbedarfe zu erkennen und bedarfsorientierte Maßnahmen zu ergreifen, durch die sie ihre Lehre mittel- und langfristig effizienter, systematischer, offener und nachhaltiger gestalten können.
Use of a supercritical fluid treatment to improve switching region in resistive random access memory
Authors: Lin Shih-Kai , Chen Min-Chen , Chang Ting-Chang , Lien Chen-Hsin , Wu Cheng-Hsien , Lin Yu-Shuo , Wu Pei-Yu , Tan Yung-Fang , Huang Wei-Chen , Zhang Yong-Ci , Chou Sheng-Yao , Wu Chung-Wei , Sze Simon M.
Published: May 2022

This work investigates the influence of a supercritical fluid (SCF) treatment on the characteristics of resistive random access memory. A comparison between the experimental results for the device at initial, after the overset process, and after the SCF treatment, shows that the treatment dopes oxygen ions and generates defects in the switching region (SR). Moreover, the changes in the ratio of the components of the SR after the SCF treatment improve memory characteristics, including a lower set/reset voltage (V
SET/V
RESET), and higher resistances at low resistance state and high resistance state.
IGZO synaptic thin-film transistors with embedded AlO
x
charge-trapping layers
Authors: Lee Yeojin , Jo Hyerin , Kim Kooktae , Yoo Hyobin , Baek Hyeonjun , Lee Dong Ryeol , Oh Hongseok
Published: May 2022

We report the fabrication and characterization of indium gallium zinc oxide (IGZO)-based synaptic thin-film transistors. Radio-frequency magnetron-sputtered AlO
x
thin films are embedded in the IGZO channel as charge-trapping layers to provide synaptic behavior. The voltage pulse introduced at the gate electrodes traps or de-traps charges in the embedded AlO
x
layer thus modulates the channel current, which in turn leads to the ability to mimic biological synaptic behaviors such as excitonic postsynaptic current, paired-pulse facilitation, and potentiation and depression. Simulation results suggest that the device can perform properly as a synaptic unit in an artificial neural network.
A COVID-19 járvány időbeli alakulásának vizsgálata szigmoid görbékkel II. : Több hullám összehasonlítása
Authors: Szabó Ferenc János
Published: May 2022

Jelen cikk első része a COVID-19 nevű, új típusú koronavírus időbeli alakulásának vizsgálatáról szólt, szigmoid görbék alkalmazásával. A cikk első részében Kína (Wuhan), Olaszország és Magyarország görbéit vizsgáltuk, a jelen cikkben már csak Magyarország görbéi szerepelnek. Az első rész befejezésekor a járvány első hullámának végén voltunk, de már biztosnak látszott, hogy meg fog jelenni Magyarországon is a második hullám. A vizsgált logisztikai görbéket tekintve ez azt jelenti, hogy a jelenség több hullámos, tehát a további hullámok vizsgálatához a bilogisztikus, sőt trilogisztikus, akár multilogisztikus (többhullámos logisztikai) görbékre is szükség lesz. A görbék egyenletét felírva, a függvények lefutását, deriváltját, integrálját vizsgálva részletesen összehasonlítható a hullámok időbeli alakulása, következtetések vonhatók le a várható esetszámokra nézve és az előrejelezhetőségre vonatkozóan is. Az így elérhető eredmények hasznosak lehetnek más jelenségek vizsgálatánál és előrejelzésénél is, mivel a szigmoid görbék kiterjedt multidiszciplinaritással rendelkeznek, sok területen alkalmazhatók fontos jelenségek leírására.
إتجاهات الطلبة في فنون الرسم وعلاقتها بانجازهم الفني في الكلية التربوية المفتوحة - دراسة تحليلية
Authors: Assistant Professor Dr.Hazem Aboudi Al-Saeedi
Published: May 2022

يعنى البحث بدراسة " اتجاهات الطلبة في فنون الرسم وعلاقتها بانجازهم الفني في الكلية التربوية المفتوحة " مركز كربلاء تحديدا بدراسة تحليلية تهدف الى الوقوف على المنجز المنفذ بالرسم بالزيت من حيث بنيته الفنية وبحسب ماتم انجازه من اعمال زيتية للعام الدراسي (2015\2019) لطلبة قسم التربية الفنية في مركز كربلاء تحديدا وذلك لاجل الوصول الى بيانات استغلت في التحليل كمنهج وصفي نوعي.تضمن الفصل الاول عرضا لمشكلة البحث وتلخيصها في امكانية الاجابة عن التساؤل "كيف تمثلت اتجاهات الطلبة في فن الرسم وما القيمة الجمالية المتحققة من ذلك ؟" فضلا عن  اهمية دورية لحصر المنتج الفني المتميز للطلبة والسعي الى تفعيل الطروحات الفكرية والفلسفية والجمالية ،اما الفصل الثاني فذهب الى الاطار النظري ومؤشراته التي من شأنها ان تحقق اليات التحليل في الدراسة الحالية ضمن مباحث اولها \المدارس الفنية واتجاهاتها في الرسم وثانيها \ دلالات الرسم  وعلاقته بخطاب فلسفة الجمال المبحث الثالث \ بنية المنجز الفني في الرسم والتربية الفنية،  في حين جاء الفصل الثالث في اجراءات البحث ومجتمعه المكون من (14) نموذجا وفقا لمنهج تحليل العينة المتكون من (3) فقط  اختيرت قصديا واعتماد المنهج الوصفي في تحليل محتوى الاعمال .كما جاء الفصل الرابع شاملا على اهم النتائج والاستنتاجات والتوصيات والمقترحات. ومن النتائج :

يعتبر الرسم تعبيرا عن تلاقح الافكار والثقافات وانه وسيلة اتصال ولغة .

       2.هدفت الرسوم الى تسجيل الواقع بأدق تفاصيله العينية

ارتبطت الرسوم بصناعة اللوحة التجارية .

       4.هنالك تقارب بيني فيما رسمه الطلبة في التعبير عن خواص اللوحة الفنية .

       5. هنالك تأكيد على فهم الاخلاقيات العرفية والسنن في المجتمع العراق
اثر استراتيجية لاحظ - اعكس - اشرح في اكتساب المفاهيم التاريخية لدى طلاب الصف الخامس الادبي في مادة التاريخ
Authors: M. Raad Jaber Shani Al-Zalmi
Published: May 2022

هدف البحث التعرف (أثر        استراتيجية لاحظ - اعكس - اشرح في اكتسـاب المــــــــفاهيم التاريخية لدى طلاب الصف الخامس الادبي في مادة التــــــــاريخ )       ولتحقيق ذلك اختار الباحث تصميما تجريبيا ذا الضبط الجزئي للمجــــــموعتين التجريبية والضابطة ذوات الاختبار البعدي واختار الباحث عــشوائيا طلاب الصف الخامس الادبي في مدرسة ثانوية الفارابي للبنين حــيث تكونت العينة من (60 ) طالبا بواقع (30) طالبا في المجموعة التجريبية التي يدرس طـــــلابها على وفق استراتيجية  لاحظ - اعكس - اشرح ، و(30) طالبا في المجموعة الضابطة التي يدرس طلابها على وفق الطريقة الاعتيادية ؛ وكافا الباحث بين مجموعتي البحث في ( العمر الزمني للـــــــطلاب محسوبا بالأشهر , ودرجات التحصيل السابق في مادة التاريخ , ومتغير الذكاء ) بعدها تم تحديد المادة العلمية والتي شملت الفصول الاربعة الاخيرة من كتاب التاريخ الحــــــــديث والمعاصر للصف الخامس الادبي , وصاغ اهدافا سلوكية اعتمدت على تصنيف بــــلوم للمستويات الست ( معرفة , فهم , التطبيق , التحليل , التركيب , التقويم ) عــــــــددها (126) هدفا , واعد مجموعة من الخطط التدريسية للموضوعات في مادة التاريخ , وتماشيا مع هــــــــدف البحث اعد الباحث اختبار اكتساب المفاهيم التاريخية من نوع الاختيار من متعدد تكون بصورته النهائية من (45) فقرة تم التحقق من صدقها الظاهري بعرضها على مجموعة من المحكــــــمين والمتخصصين في طرائق التدريس وتم استخراج معامل الصعوبة والقوة التميزية لفقراتـــــه فضلا عن بيان مدى فعالية البدائل واستخرج ثبات الاختبار بطريقة التجزئة النصفية وصــــحح بمعادلة بيرسون ومن ثم معادلة سبيرمان براون , وفي نهاية التجربة طبق الاختبار على طلاب مجموعتي البحث واعتمد الاختبار التائي لعينيتين مستقلتين لمعالجة البيــــانات احصائيا اذ اظهرت النتائج تفوق المجموعة التجريبية التي درست باستراتيجية  لاحظ - اعكس - اشرح عـــــلى المجموعة الضابطة التي درست بالطريقة الاعتيادية في اختبار اكتساب المفاهيم التاريخية , وفي ضوء ذلك اوصى الباحث باستعمال استراتيجية لاحظ - اعكس - اشرح في تدريس مادة التاريـــــخ
OUTCOME OF THE MANAGEMENT OF AGGRESSIVE RETINOPATHY OF PREMATURITY (A-ROP)
Authors: Islam Tanzina , Mehbub Ul Kadir Syeed
Published: May 2022

Objective: To compare the efcacy and safety between laser therapy and anti-vascular endothelial growth factor (VEGF) agents for aggressive
retinopathy of prematurity (A-ROP). Acomparative study for laser, anti VEGF with laser and anti-VEGF mono therapy forPatients and methods:
A-ROP treatment. Study period was 2016 to 2020 at BIRDEM General Hospital. We included fteen A-ROP babies with thirty eyes. Ten eyes
treated with laser, ten eyes treated with anti-VEGF with laser and ten eyes treated with anti-VEGF. We used Bevacizumab as anti-VEGF. We
compared efcacy, safety, complication, retreatment between these three groups. Complication incidences were signicantly higher inResult:
laser therapy group. 20% of infants' needs retreatments with laser therapy more than two sessions. In anti-VEGF and laser therapy group, 6.7% of
infants need retreatment and in anti-VEGF group-1 3.3% infants need retreatment. P-value was 0.005 which is signicant. Development of myopia
is signicantly higher in laser therapy group (Group-3). About 100% infants' developed myopia. In Group-2 30% infants' developed myopia. In
Group-1 no infants developed myopia. P-value was highly signicant 0.01. This analysis outcome indicates anti-VEGF agents are asConclusion:
effective as laser treatment and safer than laser. The degree of myopia in A-ROP in laser group is higher than anti-VEGF mono therapy group. The
decreased incidence of early unfavorable refractive and functional outcomes in the IVB group compared with the laser group showed a potential
benet for patients treated with Intravitreal Bevacizumab (IVB).
Decentralized Aggregation for Energy-Efficient Federated Learning via Overlapped Clustering and D2D Communications
Authors: S. Al-Abiad Mohammed , Obeed Mohanad , Hossain Md. Jahangir , Chaaban Anas
Published: May 2022

Federated learning (FL) has emerged as a distributed machine learning (ML) technique to train models without sharing users' private data. In this paper, we propose a decentralized FL scheme that is called \underline{f}ederated \underline{l}earning \underline{e}mpowered  \underline{o}verlapped \underline{c}lustering for \underline{d}ecentralized aggregation (FL-EOCD). The introduced FL-EOCD leverages device-to-device (D2D) communications and overlapped clustering to enable decentralized aggregation, where a cluster is defined as a coverage zone of a typical device. The devices located on the overlapped clusters are called bridge devices (BDs). In the proposed FL-EOCD scheme, a clustering topology is envisioned where clusters are connected through BDs, so as the aggregated models of each cluster is disseminated to the other clusters in a decentralized manner without the need for a global aggregator or an additional hop of transmission. Unlike the star-based FL, the proposed FL-EOCD scheme involves a large number of local devices by reusing the RRBs in different non-adjacent clusters. To evaluate our proposed FL-EOCD scheme as opposed to baseline FL schemes, we consider minimizing the overall energy-consumption of devices while maintaining the convergence rate of FL subject to its time constraint. To this end, a joint optimization problem, considering scheduling the local devices/BDs to the CHs and computation frequency allocation, is formulated, where an iterative solution to this joint problem is devised. Extensive simulations are conducted to verify the effectiveness of the proposed FL-EOCD algorithm over FL conventional schemes in terms of energy consumption, latency, and convergence rate.
Evolution of the Internet from Web 1.0 to Metaverse: The Good, The Bad and The Ugly
Authors: Nath Keshab
Published: May 2022

The World Wide Web as the largest global information media through which user can share, read, and writes data through computers connected with internet. In last few years, internet has had much progress from web1.0 to web 3.0. The first iteration of the web or web 1.0, also known as the Classic Web, arrived in 1991. Web1.0 was all about connecting and getting information on the net. Then came web 2.0, enabling users to read as well as create and deliver content. Due to the read and write functionalities of web 2.0, there was an immense growth in the on the internet, specially in social media alongside Ecommerce. Web3.0 is generally regarded as the emergence of the semantic web, where computer will generating and thinking new information rather than humans. Using artificial intelligence and machine learning technologies, users will be able to interact with data. The Metaverse is the future iteration of the internet. It will combines multiple different virtual spaces that provides access to a diverse variety of entertainment and projects utilizing the full range of augmented reality.
BER Reduction Using Partial-Elements Selection in IRS-UAV Communications with Imperfect Phase Compensation
Authors: Jangsher Sobia , Al-Jarrah MOHAMMAD AHMAD , Al-Dweik Arafat , Alsusa Emad , Alouini Mohamed-Slim
Published: May 2022

This work considers optimizing the IRS elements’ selection process to reduce the average BER. In addition to BER reduction, reducing the number of elements reduces the overhead associated with phase information feedback to the IRS panel, and allows serving other users in the network. Moreover, the phase error distribution is derived for the case of LoS communications in closed-form.
Energy Constrained Sum-Rate Maximization in IRS-Assisted UAV Networks with Imperfect Channel Information
Authors: Jangsher Sobia , Al-Jarrah MOHAMMAD AHMAD , Al-Dweik Arafat , Alsusa Emad , kong peng-yong
Published: May 2022

This work considers the problem of joint IRS elements and power allocation for UAV networks in the presence of imperfect phase compensation and energy constraints. The allocation problem is formulated to maximize the network sum-rate with minimum individual rate and energy constraints.
Safety and immunogenicity of live intranasal pertussis vaccine GamLVP in the experimental infant hamadryas baboon model
Authors: Djidaryan A. A. , Matua A. Z. , Medkova A. Yu. , Semin E. G. , Sinyashina L. N. , Dyakov I. N. , Chernyshova I. N. , Kubrava D. T. , Amichba A. A. , Kondzariya I. G. , Mikvabiya Z. Ya. , Karataev G. I.
Published: May 2022

Introduction. The Gamaleya National Center of Epidemiology and Microbiology has developed a live intranasal pertussis vaccine, GamLVP, for protection against whooping cough. It is indicated for vaccination of infants and revaccination of adults of all age groups. Preclinical studies on suckling mice or rats and adult monkeys as well as clinical trials involving adult volunteers demonstrated safety and efficacy of the GamLVP vaccine. The expansion of the GamLVP vaccine to be used for vaccination of infants requires additional preclinical studies to assess its safety and immunogenicity in the most suitable experimental model of infant hamadryas baboons (Papio hamadryas).The aim of the study was to assess safety and immunogenicity of the GamLVP vaccine administered intranasally for a single dose, two-dose, and three-dose immunization of P. hamadryas infants.Materials and methods. The study was performed in three 1–2-month-old P. hamadryas infants kept, together with their mothers, in a separate cage. The results of the complete blood count and biochemical profile tests were measured before and after the immunization and experimental infection. The enzyme immunoassay (EIA) was used to detect any changes in the levels of specific IgG antibodies in sera from the mothers and infants; the agglutination test (AT) was used to measure titers of total anti-pertussis antibodies.Results. The intranasal immunization of P. hamadryas infants with the GamLVP vaccine triggered development of a specific humoral immune response mediated by IgG antibodies (pertussis toxin + filamentous hemagglutinin), increased titers of total agglutinating anti-pertussis antibodies, caused no local and systemic reactions, caused no changes in the complete blood count and biochemical profile. The experimental infection of the GamLVPimmunized P. hamadryas infants did not cause any changes in the laboratory blood test values and any clinical manifestations typical of the pertussis infection.
Activity of peripheral blood factors against Candida albicans
Authors: Godovalov A. P. , Boev I. A.
Published: May 2022

Introduction. Currently, the colonization of various human biotopes by yeast-like fungi of the genus Candida is considered a relatively frequent phenomenon. At the same time, the clinical manifestations of the inflammatory process do not develop in every case, which implies the formation of a unique symbiosis between microscopic fungi and cells of the human body, the maintenance of which largely depends on the activity of the immune system. The main part of researches on the antifungal activity of the human immune system is concentrated around pathological conditions, and practically no attention is paid to such in healthy individuals. It has been shown that human immunity factors can, on the one hand, for example, contribute to the formation of C. albicans biofilms, and, on the other hand, take an active part in their destruction.The aim of the investigation was to evaluate the candidacid, antibiofilm, phagocytic and radical-producing activities of peripheral blood of healthy donors using C. albicans cells as an object.Materials and methods. Peripheral blood samples were obtained from 32 healthy donors, mycidal activity, absorption and radical-producing abilities of leukocytes, as well as the effect of blood serum on film biomass were assessed. For opsonization of C. albicans cells, immunoglobulins G were used according to the previously approved method.Results. A weak mycocidal activity of the peripheral blood of healthy donors was shown. Opsonization of C. albicans with immunoglobulin G significantly increases this blood function. In the early phase of contact with C. albicans, yeast-like cells mainly absorb by neutrophilic leukocytes, and mononuclear cells practically do not participate in the process of phagocytosis, probably their activity manifests itself in a later period. Opsonization of C. albicans stimulates the absorption activity of leukocytes, which is reflected in an increase in the average number of absorbed objects per leukocyte. It has been shown that opsonins can participate in enhancing the radical-producing activity of leukocytes. Thus, inactivation of proteins of the complement system levels the stimulating effect of C. albicans opsonization.Conclusion. Immunoglobulins G and proteins of the complement system make a significant contribution to the suppression of the pathogenic activity of C. albicans.
The role of cyanotoxins in human and animal pathology (а review)
Authors: Polyak Yu. M. , Polyak M. S.
Published: May 2022

Cyanobacteria are the oldest and most widespread form of life on Earth. Many of them produce toxins that are dangerous to humans and animals. The review presents data on the distribution of toxin-producing cyanobacteria, the pathogenesis of the action of toxins on human and animal cells and tissues. A significant consideration is given to the neurotoxic effect of cyanotoxins, which is most common cause of animal death. Cyanotoxins can cause severe damage to the central and peripheral nervous systems, as well as the liver, kidneys, reproductive system and digestive tract. Data on hepatotoxic, nephrotoxic, cardiotoxic, immunotoxic effects of cyanotoxins are presented. Their role in the human brain degenerative diseases is considered. The possible influence of cyanotoxins on carcinogenesis, especially in the liver, large intestine and rectum, is evaluated. The limitations of the existing data on the pathogenicity of cyanobacteria and medical care necessary for cyanotoxin-induced diseases are noted. The necessity for further studies of clinical manifestations of pathological processes caused by cyanotoxins, the development of diagnostic methods and specific therapy of poisoning is discussed.
Korelasi antara Habits of Mind terhadap Hasil Belajar Peserta Didik Kelas XI IPA SMA Negeri 1 Sendana selama Periode Belajar dari Rumah
Authors: Firman Firman
Published: May 2022

Penelitian ini adalah penelitian korelasional dengan pendekatan kuantitaif yang bertujuan untuk mengetahui hubungan antara Habits Of Mind dengan hasil belajar peserta didik kelas XI IPA SMA Negeri 1 Sendana selama periode belajar dari rumah. Populasi penelitian ini adalah seluruh peserta didik kelas XI IPA SMA Negeri 1 Sendana. Pengambilan sampel dilakukan dengan menggunakan teknik sampling jenuh sehingga terpilih  seluruh peserta didik kelas XI IPA SMA Negeri 1 Sendana sebanyak 70 orang.  Data Habits of mind dikumpulkan melalui angket yang dibuat menggunakan Google form yang kemudian disebarkan secara online melalui aplikasi WhatsApp.  Data hasil belajar peserta didik kelas XI IPA SMA Negeri 1 Sendana diperoleh melalui dokumentasi hasil belajar peserta didik. Data hasil penelitian dianalisis menggunakan SPSS 23. Analisis data menunjukkan koefisien korelasi Pearson sebesar 0,22 dengan nilai sig. sebesar 0,04 sehingga disimpulkan bahwa terdapat korelasi antara habits of mind dengan hasil belajar peserta didik kelas XI IPA SMAN 1 Sendana.
An Analysis of Students’ Speaking Ability of The Second Grade MAN 1 POLMAN; An Overview of Covid-19 Adapted Learning
Authors: Sari Ratna , Danial Muhammad , Yasim Sukmawati
Published: May 2022

The purpose of this study was to analyze the speaking ability of class XI EXACT MAN 1 POLMAN students in the 2020 academic year. This research is a descriptive qualitative research. Data collection techniques used speaking tests and questionnaires. Researchers took 10 students as research subjects. The results showed that the students were able to speak English well in terms of fluency and pronunciation. As for the results of the student perception questionnaire, the researcher found that vocabulary is one of the problems experienced by students when they want to speak English and have difficulty pronouncing words correctly so they are afraid of being wrong. And sometimes it's difficult to make sentences correctly.
Perbandingan Hasil Belajar Peserta Didik Melalui Penggunaan Media Pembelajaran Edmodo dan Google Classroom
Authors: Fitriani Fitriani , Hidayah Nurul , Sainab Sainab
Published: May 2022

Proses pembelajaran di SMA Negeri 1 Sendana masih menggunakan metode ceramah dan media gambar. Nilai hasil belajar peserta didiknya tergolong rendah. Penelitian ini merupakan penelitian eksperimen semu yang bertujuan untuk mengetahui perbandingan hasil belajar peserta didik kelas XI IPA SMA Negeri 1 Sendana melalui penggunaan media pembelajaran Edmodo dan Google Classroom. Teknik pengambilan sampel ditentukan dengan teknik purposive sampling, XI IPA 1 sebagai kelompok eksperimen I, sedangkan Kelas XI IPA 2 sebagai kelompok eksperimen II. Pengumpulan data menggunakan soal pilihan ganda yang diberikan pretest dan posttest. Analisis data menggunakan uji prasyarat dan uji hipotesis dengan bantuan SPSS 23. Hasil belajar pretest kelas eksperimen I didapatkan nilai rata-rata sebesar 33,30 dan posttest sebesar 86,93. Sedangkan kelas eksperimen II memiliki rata-rata hasil belajar pretest sebesar 34,73 dan posttest sebesar 81,85. Analisis data hasil belajar posttest kelas eksperimen I dan II menunjukkan nilai signifikansi sebesar 0,048 lebih kecil dari α=0.0, dengan demikian, dapat disimpulkan bahwa terdapat perbedaan hasil belajar peserta didik yang diajar menggunakan aplikasi Edmodo dan Google Classroom. Hasil belajar peserta didik menggunakan media pembelajaran berbasis Edmodo lebih tinggi dibandingkan Google Classroom.
Kelengkapan Pengisian Formulir Persetujuan Tindakan Operasi (Informed Consent) Pada Pasien Bedah Rawat Inap Di Rumah Sakit X Bandung
Authors: Amelia Diah Indah , Herfiyanti Leni
Published: May 2022

Latar Belakang: Informed consent adalah penyampaian informasi dari dokter atau perawat kepada pasien sebelum suatu tindakan medis dilakukan. Hal ini penting dilakukan karena setiap pasien berhak mengetahui risiko dan manfaat dari tindakan medis yang akan dijalankan.
Tujuan: Tujuan dari penelitian ini adalah untuk mengetahui kelengkapan pengisian formulir persetujuan tindakan operasi (informed consent) pada pasien bedah rawat inap di Rumah Sakit X Bandung.
Metode: Metode penelitian yang digunakan adalah metode penelitian kuantitatif dengan pendekatan deskriptif. Adapun metode pengumpulan data yaitu dengan observasi dan wawancara. Sampel diambil dengan menggunakan teknik sampel random sederhana dengan total 80 berkas rekam medis.
Hasil: Hasil penelitian menunjukan bahwa kelengkapan pengisian formulir persetujuan tindakan operasi (informed consent) berjumlah 11 berkas dan yang tidak lengkap berjumlah 69 berkas. Ketidaklengkapan pengisian formulir persetujuan tindakan operasi (informed consent) disebabkan oleh kurangnya pemahaman dari dokter, perawat maupun pasien mengenai informed consent dan kurangnya implementasi dari dokter, perawat maupun pasien mengenai informed consent.
Kesimpulan: Dari hasil penelitian yang telah dilakukan berdasarkan data yang telah diperoleh selama peneliti menemukan beberapa ketidaklengkapan pengisian informed consent dari bulan Oktober, November dan Desember tahun 2020 dari operasi 409 populasi dan 80 sampel berkas informed consent tindakan operasi yang digunakan. Terdapat informed consent dengan pengisian data yang terisi lengkap sebesar 17% dan pengisian informed consent tidak terisi lengkap sebanyak 83%.
Pengaruh Kelengkapan Resume Medis Rawat Inap Terhadap Mutu Rekam Medis di Rumah Sakit X Kabupaten Bandung
Authors: Fadhilah Saeful , Nur Ropina Hardian , Setiatin Sali
Published: May 2022

Latar Belakang: Resume medis atau ringkasan riwayat pulang (discharge summary) merupakan ringkasan dari seluruh masa perawatan dan pengobatan pasien sebagaimana yang telah diupayakan oleh para tenaga kesehatan dan pihak terkait. Lembar ini harus ditandatangani oleh dokter yang merawat pasien. Lazimnya informasi yang terdapat di dalamanya adalah jenis pengobatan, kondisi saat pulang, serta tindak lanjut.
Tujuan: Penelitian ini bertujuan untuk mengetahui pengaruh kelengkapan resume medis rawat inap terhadap mutu rekam medis di Rumah Sakit X Kabupaten Bandung.
Metode: Metode penelitian yang digunakan adalah metode kuantitatif dengan pendekatan deskriptif. Teknik pengumpulan data yang digunakan adalah dengan cara observasi, kuisioner, dan study pustaka. Teknik pengumpulan sampel dengan teknik sampling jenuh dengan sampel sebanyak 17 petugas.
Hasil: Hasil dalam penelitian ini berdasarkan uji statistik dengan signifikasi ? = 5% (0,05) atau tingkat kepercayaan 95% diperoleh pengaruh kelengkapan resume medis rawat inap terhadap mutu rekam medis sebesar 71,9%, dengan permasalah yang timbul diantaranya : (1) Masih ada komponen resume medis rawat inap yang belum lengkap/tidak di isi. (2) Ketidaktepatan waktu pengambilan, menghambat proses pengkodingan, pengklaiman dan informasi yang disampaikan kepada pimpinan rumah sakit. (3) belum optimalnya pengawasan dan kesadaran petugas medis.
Kesimpulan: Berdasarkan hasil penelitian yang di lakukan, penulis dapat menarik kesimpulan bahwa kelengkapan resume medis di Rumah Sakit X Kabupaten Bandung belum dapat dikatakan optimal, karena masih ada keterangan-keterangan dalam resume medis yang tidak terisi atau tidak di lengkapi oleh dokter maupun petugas yang berwenang mengisi berkas resume medis.
Analisis Data Kunjungan Pasien Rawat Jalan di Puskesmas Haurngombong Periode Bulan Januari – Juli 2021
Authors: Maulidayanti Rini , Sari Irda
Published: May 2022

Latar Belakang: Data pasien adalah data yang diperoleh dari klien atau pasien yang dapat dijadikan dasar oleh tenaga kesehatan untuk melakukan tindakan atau pelayanan kesehatan. Rekam medis adalah berkas yang berisikan catatan dan dokumen tentang identitas pasien, pemeriksaan, pengobatan, tindakan dan pelayanan lain yang telah diberikan kepada pasien. Pelayanan kesehatan adalah upaya yang dilakukan oleh suatu organisasi baik secara sendiri atau bersama-sama untuk memelihara dan meningkatkan kesehatan, mencegah dan menyembuhkan penyakit serta memulihkan perseorangan, kelompok dan ataupun masyarakat.

Tujuan: Penelitian ini dilakukan untuk mengetahui faktor apa  yang mempengaruhi kunjungan pasien terhadap Puskesmas Hurngombong.

Metode: Metode yang dilakukan Analisa Kuantitatif Deskriptif dengan menjelaskan data kunjungan pasien di Puskesmas Haurngombong

Hasil: Menemukan beberapa faktor yang mempengaruhi peningkatan dan penurunan kunjungan pasien di Puskesmas Haurngombong.

Kesimpulan: Terdapat beberapa faktor yang mempengaruhi peningkatan dan penurunan kunjungan pasien di Puskesmas Haurngombong itu sendiri terdiri dari virus COVID-19, kurangnya ketersediaan obat dan kecepatan pelayanan.
Tinjauan Ketepatan Penggunaan Simbol dan Singkatan pada Ringkasan Pulang di Rumah Sakit Pusri Palembang
Authors: Budiantono Budiantono , Miliana Elta , Sonia Dina
Published: May 2022

Latar Belakang: Simbol dan singkatan yang termasuk dalam standar SNARS Edition 1.1 terdapat di kelompok standar manajemen rumah sakit yaitu Manajemen Informasi Rekam Medis (MIRM 12).
Tujuan: Tujuan penelitian yaitu mengidentifikasi ketepatan penggunaan simbol dan singkatan pada ringkasan pulang.
Metode: Metode penelitian yaitu deskriptif restrospektif. Populasi dalam penelitian yaitu dokumen rekam medis rawat inap pada ringkasan pulang di Rumah Sakit Pusri Palembang  pada bulan Juni 2021. Besar sampel yaitu 153 berkas rekam medis pada ringkasan pulang dengan menggunakan rumus slovin. Instrumen penelitian menggunakan checklist dengan metode observasi dan dokumentasi.
Hasil: Rumah Sakit Pusri Palembang sudah memiliki pedoman penulisan simbol dan singkatan namun dalam pelaksanaannya masih terdapat penggunaan simbol dan singkatan yang tidak tepat dan tidak ada didalam buku pedoman dan SPO simbol singkatan.
Kesimpulan: Berdasarkan hasil observasi dan dokumentasi bahwa singkatan yang tidak tepat 11 %, tidak ada di buku pedoman 13 %, presentasi singkatan yang tepat 76%. Sedangkan simbol yang tidak ada didalam buku pedoman 58 %, presentasi simbol yang tepat 42%.
Perancangan Sistem Informasi Morbiditas Rawat Jalan di Rsia Limijati Bandung
Authors: Althof Dzaki , Sari Irda
Published: May 2022

Latar Belakang: 1Pengembangan sistem informasi dilakukan akan mendukung ketersediaan informasi kepada lembaga atau  instansi  yang saat ini semakin berkembang, tanpa kecuali di dunia kesehatan.
Tujuan: Penelitian ini bertujuan untuk membuat rancangan sistem  informasi morbiditas rawat jalan (RL-4b).
Metode: Metode pengumpulan data yang dilakukan pada penelitian  ini adalah metode penelitian kualitatif dengan pendekatan deskriptif. Teknik pengambilan data yang dilakukan adalah dengan cara observasi, wawancara. subjek  penelitian adalah petugas pelaporan sedangkan objek penelitian yaitu data morbiditas pasien rawat jalan (RL-4b). Penelitian ini dilakukan pada bulan April sampai dengan Juni 2021 di Rumah Sakit Limijati Bandung
Hasil: Berdasarkan hasil penelitian di rumah sakit ibu dan anak limijati bandung, menunjukan bahwa proses pengolahan data morbiditas  masih manual menggunakan microsoft excel sehingga pekerjaan  menjadi lama dan sering terjadinya keterlambatan pelaporan.
Kesimpulan: Guna membantu agar pelaporan/informasi selalu siap jika dibutuhkan maka rancangan sistem informasi morbiditas rawat jalan (RL-4b) menggunakan bahasa pemrograman Microsoft Visual Studio 2010. Berdasarkan hasil penelitian yang sudah di lakukan pada rumah sakit ibu dan anak limijati, sistem informasi morbiditas yang dibuat memudahkan petugas untuk membuat laporan dengan informasi yang lebih lengkap, konsisten, efektif dan efisien.
Pengaruh Lama Waktu Tunggu Pendaftaran Terhadap Kepuasan Pasien di Puskesmas Waringinkurung
Authors: Milaenia Fitri Havivah , Hidayati Meira
Published: May 2022

Latar Belakang: Waktu tunggu merupakan komponen penting dalam pelayanan dan merupakan pintu gerbang pertama yang berperan penting dalam memberikan kesan pertama yang baik bagi pasien. Antrian di loket pendaftaran yang panjang dan lama menyebabkan tidak efektifnya pelayanan pasien secara keseluruhan dan membuat pasien tidak nyaman, pada akhirnya kepuasan pasien akan rendah.
Tujuan: Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor yang menyebabkan lamanya waktu tunggu pelayanan pendaftaran di Puskesmas waringinkurung.
Metode: Penelitian dilakukan mulai 12 april 2021 sampai dengan 12 juni 2021. Data dikumpulkan dengan study literature, jenis penelitian yang digunakan adalah desain observasional analitik dengan pendekatan cross sectional. Tempat pengambilan sampel pada penelitian ini adalah tempat pendaftaran pasien pengamatan dengan lembar observasi dan wawancara dengan bagian pendaftaran.
Hasil: Data waktu tunggu pelayanan pendaftaran Puskesmas Waringinkurung tergolong lama. Hal yang mempengaruhi waktu tunggu antara lain belum adanya standar prosedur operasional; pasien harus mengambil nomor antrian secara manual di loket pendaftaran, job desk petugas pendaftaran masih rangkap, keterbatasan luas ruangan; berkas pasien tidak lengkap; jumlah tenaga terbatas; tidak ada mesin antrian; rekam medis yang masih manual.
Kesimpulan: Faktor metode: belum mempunyai SPO; petugas pendaftaran harus mengisi formulir yang membutuhkan waktu banyak; job desk masih tercampur. Pada faktor material: keterbatasan ruangan; berkas pasien kurang lengkap;data formulir rekam medis yang masih manual dan rumit. Pada faktor SDM; petugas pendaftaran merangkap informasi,dan menangani komplain. Pada faktor mesin: jaringan internet kadang bermasalah untuk membuat surat rujukan atau mengecek BPJS dan tidak ada mesin antrian.
Analisis Kompetensi Perekam Medis Terhadap Kepuasan Pasien di Puskesmas Cicalengka DTP
Authors: Wulandari Rani , Sonia Dina
Published: May 2022

Latar belakang: Rekam medis menjadi salah satu bagian yang perlu diperhatikan di sebuah Puskesmas dalam hal pelayanan kepada pasien. Pendidikan merupakan salah satu aspek yang mempengaruhi pengetahuan dan pemahaman perekam medis dalam melaksanakan tugasnya. Pengetahuan tentang rekam medis akan berdampak besar pada kinerja sebagai perekam medis. Pelayanan yang diberikan dengan baik akan  mempengaruhi tingkat kepuasan pasien.
Tujuan: Penelitian ini dilakukan dengan tujuan untuk mengetahui Kompetensi Perekam Medis terhadap Kepuasan Pasien di Puskesmas Cicalengka DTP.  
Metode: Metode penelitian yang digunakan adalah metode kualitatif dengan pendekatan deskriptif. Teknik pengumpulan data yang digunakan adalah dengan cara Observasi dan Studi Pustaka melalui data dari Puskesmas Cicalengka DTP. Responden dalam penelitian ini adalah petugas perekam medis dan pasien di Puskesmas Cicalengka DTP.
Hasil: Perekam medis di Puskesmas Cicalengka DTP memiliki latar belakang pendidikan yang berbeda. Tingkat kepuasan pasien di Puskesmas Cicalengka DTP menunjukkan hasil yang sudah baik dilihat dari 80% jumlah perekam medis yang sudah memahami tugas dan kinerjanya..
Kesimpulan: Berdasarkan hasil penelitian bahwa petugas rekam medis di Puskesmas Cicalengka DTP sudah kompeten. Kompetensi yang dimiliki perekam medis di Puskesmas Cicalengka DTP menunjukan hasil yang baik. Hal ini dilihat dari kemampuan perekam medis dalam melaksanakan tugas dan kewajibannya sesuai SOP yang berlaku. Kompetensi yang dimiliki oleh perekam medis sangat mempengaruhi kualitas pelayanan kesehatan. Dilihat dari IKM (indeks kepuasan masyarakat) bahwa layanan pendaftaran memiliki IKM sebesar (88,48%) dari 270 orang, kemudian pada poli umum sebesar (88,52%) dari 212 orang dan pada poli gigi  menunjukan hasil (87,26%) dari 191 orang pasien.