bluuebunny/crossref_metadata_2025 huggingface dataset:
Design and determination of double emulsions (W1/O/W2) for the trapping of antioxidant compounds sensitive to thermal processes
Authors: MONTER-JUÁREZ Francisco , ROMERO-LÓPEZ María del Rosario , MENDOZA-MENDOZA Bethsua , ESTRADA-FERNÁNDEZ Ana Guadalupe
Published: November 2022

Currently, there are several advances in the development of functional foods, since consumers are increasingly aware of the close relationship between food and the health of the body. Thus, this research proposes the encapsulation of bioactive compounds, extracted from the xoconostle fruit using micro emulsions for its protection at high temperatures in the jam making process. For the extraction, three treatments were proposed, with different means of extraction (EX); EX1: water, EX2: ethanol and EX3: ethanol-water mixture (1:1). Statistical analysis revealed that the extraction medium did not have an effect on antioxidant capacity. The emulsion was made with the EX1 extract, forming a multiple water-in-oil-in-water emulsion (W1/O/W2), using three biopolymers whey protein concentrate (WPC), whey protein isolate (WPI) and gum arabic (GA) in concentrations of 6.0%, 7.5%, and 9.0%, in which physical stability and stability to creaming were determined. The 7.5% WPI emulsion presented greater stability. The antioxidant capacity tests in the jam showed that the emulsion is efficient to preserve the antioxidant capacity, observing an increase in this in EXC/EM, compared to the EX and EXS/EM treatment.
Methodology for detection of suicidal ideation in texts from the analysis of suicide notes
Authors: Padilla-Navarro Christian , Aguilar-Durón Rebeca , Aguilera-González Gabriel , Yañez-Vargas Juan Israel
Published: November 2022

Suicide is today one of the leading causes of death in the world. People at risk of suicide commonly leave messages around them, and that often includes social media. Therefore, early detection of suicidal risk is a fundamental prevention factor. At present, the search for suicide risk based on text analysis does not consider fundamental factors such as the analysis based on suicide notes. This research proposes a new text analysis for the detection of suicidal risk based on the study of suicide notes.
A RESCISÃO CONTRATUAL TRABALHISTA CONSUBSTANCIADA À VACINAÇÃO CONTRA O COVID-19: UMA ANÁLISE DO ART. 1º DA PORTARIA 620/21
Authors: Álefe Lucas Gonzaga Camilo
Published: November 2022

À medida que o Covid-19 foi se alastrando pelo país uma profusão de indeterminações e angústias passaram a fazer parte do dia a dia da população. É inegável que o vírus modificou os hábitos de muitos brasileiros, tanto na vida privada quanto na profissional. Ao mesmo tempo que as empresas tentam se adaptar aos impactos econômicos que o país vem sofrendo elas também tentam se adaptar as novas medidas de segurança que surgiram com o intuito de diminuir a contaminação. Dessa forma, este artigo busca analisar a legalidade da demissão por justa causa quando as empresas buscam impor a vacinação aos funcionários na hipótese de o trabalhador não desejar ser imunizado.
Improvements to the VSM current controller for better grid performance
Authors: Kustanovich Zeev , YIN HANG , Weiss George
Published: November 2022

Abstract—Output current control is widely used as the inner?most control loop of inverters, in particular virtual synchronous machines (VSM). The realization of this controller is commonly based on a PI controller working in a synchronous reference frame. The controller should mitigate the grid currents distortion and the unsteady amplitudes caused by A/D converter imperfec?tions, measurement errors and processing delays. The elimination of any DC component in the output currents is another relevant demand. The literature indicates that the current controller parameters are usually chosen by experimental tuning. In this paper, we propose a fast current controller design procedure that provides compensation for the processing delays and eliminates the DC components of the grid-side currents. We propose to control also the zero component of the output currents (which helps in an unbalanced grid). We present the performance of the novel features of our current controller through a series of simulations, comparing it to the performance of the same con?troller without the proposed additional features. In addition, we compare our new current controller’s design with one proposed in the literature. The results show that the new current controller leads to a better performance of the VSM in terms of output active power oscillations and stability.
Design and implementation of coherent multi-h CPM receiver with low-complexity decision-directed synchronization algorithm
Authors: Wang Le
Published: November 2022

 In this paper, an efficient all-digital demodulator for multi-h CPM is proposed based on a low-complexity decision-directed synchronization algorithm. We derive the maximum-likelihood estimation of the carrier phase and timing errors and propose a reduced-complexity timing error discriminator with the linear phase approximation (LPA). Compared to the traditional synchronization method, it reduces about 2/3 of matched filter banks since only on-time matched filter banks are required. To demonstrate the stability of the proposed algorithm, the S-curve is derived theoretically and plotted with numerical simulation. The numerical results show that the LPA-based synchronization algorithm has no loss of bit error rate (BER) performance compared to the commonly used methods. Then, the LPA-based synchronization and the maximum-likelihood sequence detection for the three kinds of promising multi-h CPM demodulation are implemented on a Xilinx Kirtex-7 FPGA platform achieving the global clock rate of 200MHz. The BER of the overall receiver is tested on board, and the results show that its performance has an ignorable loss to the numerical simulation. The implementation overhead on FPGA is reduced by about 30% compared to the conventional method. 
Online DVFS using Deep Learning: Sequence to Sequence LSTM Networks with Attention
Authors: Thethi Sukhmani Kaur , Kumar Ravi
Published: November 2022

 Real Time embedded systems are highly complex due to interactions and interdependencies between various hardware/software units and policies of the processors with applications running on it. To deal with fluctuating workloads and subsequent tasks, smart adaptability of supply clock and voltage is required in order to optimize power without compromising on the performance. This is done using Dynamic Voltage and Frequency Scaling (DVFS) technique. An improved version of DVFS is proposed in this paper which treats it as a recurrent problem with an aim to capture the intricate dependencies amongst various factors influencing the operation. The authors have employed application independent- Radial Basis Neural Network to generate series of predicted frequencies for current workload of the processor, followed by seq2seq-LSTM based encoder decoder model using Attention to decide if the frequency generated by the Artificial Neural Network (ANN) model is optimum from power conservation point of view. The proposed model predicts the workload and then compares the predicted frequency to the critical value or deadline of the current task. The experiments were conducted on a single core processor on which a benchmark application was run, and promising prediction accuracy rates were obtained without incurring degradation of critical performance parameters. 
Near-Field Far-Field Transformations with Unknown Probe Antennas
Authors: Paulus Alexander , Eibert Thomas F.
Published: November 2022

The characterization of unknown antennas under test (AUTs) from measurements of the radiated near field (NF) is commonly performed with known probe antennas. By accounting for the behavior of a given probe in the processing of the NF data, the obtained quantities of interest, e.g., the far-field (FF) behavior of the radiator, are free of biases and distortions caused by the probe sensor. We discuss an NF FF transformation (NFFFT) which can fully compensate the effect of the probe, while only requiring knowledge about its electrical size, position, and orientation. An iterative nonconvex technique based on alternating projections is discussed, as well as a convex approach utilizing bilinear forms is provided. Connections to the related problem of phase retrieval are highlighted. Simulation results showcase the validity of NFFFTs with full probe correction of unknown probes and shed some light on potential limitations.
Modeling and Control of a Zero-Inertia AC-MTDC Grid Benchmark Model: An Outlook for the Future
Authors: Ancha Satish Kumar
Published: November 2022

In the AC surrounded Multi-terminal HVDC (AC-MTDC) grids, the substantial growth in Renewables-based Power Generation (RPG) out-turn high inertia into low or Zero-Inertia systems and are the near future of the transiting power systems. In this context, it necessitates the development of a Zero-Inertia AC-MTDC grid test system and appropriate control strategies for the satisfactory operation of the system. Thus, this paper develops the Zero-Inertia AC-MTDC grid while replacing the synchronous generators with the Inverter-Based Resources (IBRs). Besides, it utilizes the Grid Forming (GFM), Grid Supporting (GST), and Grid Following (GFL) control strategies for the Zero-Inertia AC-MTDC grids. The GFM and GST control modes are utilized to start up the system and improve the system's frequency and dc voltage profiles in a decentralized manner during any imbalances in the grid. Moreover, the GST mode is achieved in this paper through a conventional fixed droop and proposed Modified-Operating Point-based droop (MOPD) control strategies for Voltage Source Converters (VSCs) connected to grid and wind farms in the AC-MTDC grids. The significance and validation of these control modes are perceived through the various case studies with a developed Zero-Inertia AC-MTDC test system and inertia AC-MTDC grid in the PSCAD/EMTDC simulation.
A method for quantification of stretch reflex excitability during ballistic reaching
Authors: Plaisier Thomas , Dewald Julius P. A. , Acosta Ana Maria
Published: November 2022

Stretch reflexes are crucial for performing accurate movements and correcting for unpredictable environments at low energy costs. Stretch reflexes are modulated by supraspinal structures via corticofugal pathways. Neural activity in these structures is difficult to observe directly, but characterization of reflex excitability during volitional movement can be used to study how these structures modulate reflexes and how neurological injuries impact this control. We have developed a novel protocol to quantify stretch reflex excitability during ballistic reaching. This novel method relies on a custom haptic device (NACT-3D) capable of applying high-velocity (> 270 °/s) joint perturbations in the plane of the arm while participants perform 3D reaching tasks in a large workspace. We assessed its performance on two control participants and four participants with chronic hemiparetic stroke. Participants reached ballistically from a near to a far target, with elbow extension perturbations applied in random catch trials. Perturbations were applied before movement, at movement onset, or at peak movement velocity. Stretch reflexes were elicited in the biceps muscle in the stroke cohort as measured by electromyographic (EMG) activity both before (pre phase) movement and near movement onset (early phase). Significant reflexive EMG was also seen in the pectoralis major in the pre motion phase. In the control cohort, no significant reflexive EMG was seen. This novel protocol can capture increased stretch reflex excitability in post-stroke individuals when compared to controls and quantify the modulation of stretch reflexes during movement.
The Analysis and Development of an XAI Process on Feature Contribution Explanation
Authors: Huang Jun , Wang Zerui , LI DING , Liu Yan
Published: November 2022

Explainable Artificial Intelligence (XAI) research focuses on effective explanation techniques to understand and build AI models with trust, reliability, safety, and fairness. Feature importance explanation summarizes feature contributions for end-users to make model decisions. However, XAI methods may produce varied summaries that lead to further analysis to evaluate the consistency across multiple XAI methods on the same model and data set. This paper defines metrics to measure the consistency of feature contribution explanation summaries under feature importance order and saliency map. Driven by these consistency metrics, we develop an XAI process oriented on the XAI criterion of feature importance, which performs a systematical selection of XAI techniques and evaluation of explanation consistency. We demonstrate the process development involving twelve XAI methods on three topics, including a search ranking system, code vulnerability detection and image classification. Our contribution is a practical and systematic process with defined consistency metrics to produce rigorous feature contribution explanations.
Specification and Performance Analysis of Wi-SUN FAN
Authors: Hirakawa Rei , Mizutani Keiichi , Harada Hiroshi
Published: November 2022

In recent years, extensive research has been conducted on Internet of Things (IoT). Wireless Smart Ubiquitous Network (Wi-SUN) has gained considerable attention as a wireless communication standard for IoT. Wi-SUN Field Area Network (Wi-SUN FAN) is a technical specification of Wi-SUN that can be implemented in both indoor and outdoor IoT communication infrastructure with multi-hop routing. Although Wi-SUN FAN version 1.0 (Wi-SUN FAN 1.0) has been standardized by IEEE 2857-2021, there have been no studies or reviews conducted on the transmission performance of Wi-SUN FAN 1.0 regarding transmission success rate and delay time using computer simulations and experimental evaluation environments involving actual devices. In this study, the specifications of the Wi-SUN FAN are reviewed, and the fundamental transmission performance, such as average transmission success rate and average delay time, is measured using computer simulation as reference data. An experimental evaluation environment involving actual devices is developed to validate the characteristics evaluated by computer simulation. The characteristics determined by the computer simulation and experimental evaluation environment are in good agreement. Using the validated simulator, we evaluate the transmission performance in the wireless IoT environment with one border router and 100 routers randomly arranged in a flat square field with 4,000 m on a side. The average transmission success rate is approximately 1 at 1.00 × 10–1 s–1 or less. Consequently, Wi-SUN FAN 1.0 can communicate with a higher transmission success rate even when transmitting frequent IoT-data, which is once every ten seconds.

This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible.
A promoção de formação continuada sobre inclusão na percepção de educadores do sistema público no Distrito Federal/Brasil
Authors: OLIVEIRA Aline , Carvalho Leme Moura VÉRAS Sonia
Published: November 2022

The article presents the result of a research to analyze the impact of the promotion of continuing education, aimed at specialized teachers of the Resource Rooms (Sala de Recursos) of the Public-School Network of the Federal District, identifying how this can help in the challenges of specialized educational care. The ontological basis of the present investigation was Phenomenology, which values meaningful perceptions of the lived. The research from databases of CAPES was carried out contemplating the themes that generate continued training, disability, and inclusion, with theoretical contributions from Mantoan, Husserl, Giorgi, Sonza and Garcia. A semi-structured online questionnaire was used as an instrument for data collection and data generation, with questions that addressed the detailing of continuing education in terms of workload, thematic distribution and experience in inclusive activities, the degree of satisfaction with training, recommendations and doubts that persist, so that care is considered appropriate to the type of need of each student deficiency. The results showed that half of the 14 surveyed teachers consider that the continuing education received is only of average quality, that there is a lack of assistive technological resources, a lack of appreciation for the work of the teachers of the Resource Rooms, as well as, that there is no support of teachers who hold classroom, creating a distance that does not contribute to a parallel and complementary effort, which would bring positive results for students with disabilities. For research participants, the inclusion process is still under development.
Dampak Pemerolehan Bahasa Anak Dalam Berbicara Terhadap Peran Lingkungan
Authors: Astuti Eny
Published: November 2022

Lingkungan sangat berdampak terhadap bahasa anak dalam berbicara. Lingkungan merupakan salah satu faktor yang mempengaruhi dalam pemerolehan bahasa anak. Karena dengan lingkungan runinitas anak dapat berjalan dengan baik tanpa kesulitan dalam berinteraksi di lingkungan sosial dan proses pemerolehan bahasa juga di mulai dari lingkungan baik lingkungan keluarga maupun lingkungan masyarakat. Rangsangan yang diperoleh anak melalui lingkungan berpengaruh terhadap perkembangan bahasa anak. Rangsangan yang diterima secara perlahan akan mempengaruhi perkembangan bahasa anak. Rangsangan orang tua terdekatnya akan diproses oleh anak sehingga menjadikan anak seperti itu matang dalam pola pikir, pola, dan pola tutur. Peran orang tua yang begitu penting menuntut orang tua untuk berhati-hati dan cermat dalam mendidik anaknya. Orang tua perlu memahami langkah-langkah perkembangan bahasa pada anak untuk dapat memberikan stimulus pada tahap perkembangan yang sesuai dengan usianya.  Perkembangan bahasa merupakan salah satu indikator perkembangan kognitif seorang anak, hal ini berkaitan dengan keberhasilan atau keterlambatan dalam berpikir dan berkomunikasi di daerah tersebut. Seorang anak yang dikatakan lambat dalam berbicara dapat mempengaruhi kemampuan koneksi dalam sehari-hari secara pribadi atau lingkungan sosial, yaitu untuk mendapatkan kesulitan belajar, bersosialisasi dan aktivitas kerja lainnya ketika dewasa nanti.  Faktor-faktor yang dapat mempengaruhi perkembangan bahasa anak antara lain: perkembangan otak dan kecerdasan, jenis kelamin,kondisi fisik, lingkungan keluarga, kondisi ekonomi, lingkungan sosial/budaya, kedwibahasaan (2 bahasa).
Upaya Meningkatkan Preatasi Belajar IPA Melalui Pembelajaran Problem Based Learning (PBL) Berbantuan Media Gambar Kelas IV Sekolah Dasar
Authors: Fitrianingtyas Tantri , Hudayati Yulia Maftuhah , Untari Rini
Published: November 2022

Tujuan penelitian ini adalah untuk mendeskripsikan penerapan model pembelajaran Problem Based Learning dalam meningkatkan prestasi belajar peserta didik. Penelitian ini dilaksanakan di SD Gonilan 1 Kecamatan Kartasura Kabupaten Sukoharjo dan dilatar belakangi rendahnya prestasi belajar peserta didik yang kurang dari KKM. Hal ini dilatarbelakangi karena adanya kesulitan yang dialami peserta didik kelas 4 SD Gonilan 1 dalam pembelajaran tematik mata pelajaran IPA. Jenis penelitian ini adalah Penelitian Tindakan Kelas yang dilakukan melalui dua siklus. Subjek penelitian ini adalah peserta didik kelas 4 SD Gonilan 1 Kecamatan Kartasura Tahun Pelajaran 2022/2023 dengan jumlah 10 peserta didik. Teknik pengumpulan data menggunakan wawancara, observasi, dokumentasi, dan penilaian tes tertulis. Dibuktikan dengan prosentase belajar peserta didik di kelas sebelumnya sebesar 60%. Penyebabnya adalah mereka merasa bosan dengan proses belajar yang monoton dan tidak menggunakan model pembelajaran yang bervariasi. Solusi dari permasalahan ini adalah peneliti menawarkan menggunakan model pembelajaran Problem Based Learning untuk diterapkan kepada peserta didik. Presentase prestasi belajar siswa pada siklus 1 yaitu sebesar 70% kemudian meningkat pada siklus II yaitu sebesar 80%. Hal ini berarti terjadi peningkatan sebesar 10%. Dengan demikian penggunaan model pembelajaran Problem Based Learnig dalam mata pelajaran IPA dapat meningkatkan prestasi belajar siswa kelas IV SD 1 Gonilan Kartasura.
Upaya Meningkatkan Hasil Belajar Siswa Menggunakan Media Ular Tangga Materi Jenis Sudut Kelas 3 SDN 3 Temboro
Authors: Lestari Dina , Sayekti Ika Candra , Khanifah Siti
Published: November 2022

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar materi jenis sudut dengan menggunakan media pembelajaran ular tangga peserta didik kelas III di SD Negeri 3 Temboro Tahun Ajaran 2021/2022. Teknik pengumpulan data yang digunakan observasi, wawancara, tes dan dokumentasi. Berdasarkan hasil dari penelitian ini dapat disimpulkan bahwa peningkatan hasil belajar peserta didik menggunakan media pembelajaran ular tangga mengalami peningkatan. Peningkatan tersebut dibuktikan dengan adanya peningkatan nilai rata-rata kelas setiap siklusnya. Nilai rata-rata kelas sebelum tindakan sebesar 63%. Dari 10 peserta didik sebanyak 4 anak mencapai kriteria ketuntasan minimal (KKM) dan sebanyak 6 anak belum mencapai kriteria ketuntasan minimal (KKM). Pada siklus I nilai rata-rata kelas sebesar 71% dan meningkat pada siklus II yaitu 86%. Pada siklus I sebanyak 8 siswa memenuhi kriteria ketuntasan minimal (KKM) dan 2 siswa belum memenuhi kriteria ketuntasan minimal (KKM). Sedangkan pada siklus 2 terjadi peningkatan ketuntasan belajar, sebanyak 10 siswa memenuhi kriteria ketuntasan minimal (KKM).
Upaya Meningkatkan Keterampilan Menulis Karangan Narasi Menggunakan Metode Guided Writing Pada Peserta Didik Kelas V SD Negeri 6 Jimbung
Authors: Fakhrurrozi Ahmad
Published: November 2022

Penelitian ini bertujuan untuk meningkatkan keterampilan berbicara dan proses pembelajarannya menggunakan metode sosiodrama pada siswa kelas III SD Negeri Demakijo 1 Yogyakarta Tahun Ajaran 2017/2018. Jenis penelitian ini adalah Penelitian Tindakan Kelas (PTK) model Kemmis dan Mc Taggart. Subjek penelitian ini berjumlah 31 siswa.Teknik pengumpulan data yang digunakan adalah tes, catatan lapangan, dan dokumentasi.Teknik analisis data yang digunakan adalah analisis data kuantitatif dan kualitatif. Hasil dari penelitian menunjukkan bahwa penggunaan metode sosiodrama dapat meningkatan hasil dan proses pembelajaran  keterampilan berbicara siswa. Nilai rata-rata berbicara pada pra tindakan sebesar 63,26 menjadi 71,1 pada siklus I, dan meningkat menjadi 80,76 pada siklus II. Tingkat pencapaian ketuntasan siswa juga meningkat dari pra tindakan  sebesar 3,22%,menjadi 51,6% pada siklus I, dan 87% pada siklus II. Peningkatan proses pembelajaran yaitu siswa menjadi aktif dan fokus dalam mengikuti pembelajaran.
MENINGKATKAN KEMAMPUAN MEMBACA CEPAT DENGAN MENGGUNAKAN MEDIA TEKS TERJEMAHAN DALAM FILM BAHASA INGGRIS
Authors: Apriyanto Apriyanto , Sayekti Ika Candra , Khanifah Siti
Published: November 2022

Penelitian ini merupakan penelitian tindakan kelas. Peneltian ini berupaya untuk menunjukan hasil peningkatan kemampuan dalam membaca cepat siswa dengan menggunakan media teks terjemahan dalam film bahasa Inggris. Terlihat dari hasil kecepatan membaca siswa pada tahap pra siklus, rata-rata membaca cepat siswa adalah 70,45 kata permenit. Pada siklus I mengalami peningkatan, rata-rata membaca cepat siswa yaitu 87,74 kata permenit. Sedangkan pada siklus II peningkatan rata-rata membaca cepat siswa meningkat menjadi 107,50 kata permenit. Kesimpulan dalam penelitian ini adalah penerapan media teks terjemahan dalam film bahasa Inggris dapat meningkatkan kemampuan membaca cepat siswa kelas IV SD Muhammadiyah 16 Karangasem tahun pelajaran 2021/2022.
Peningkatan Keaktifan Belajar Melalui Model Problem Based Learning Pada Pembelajara IPS Bagi Siswa Sekolah Dasar
Authors: Nuraini Myshell , Muhroji Muhroji , Ratnawati Wahyu
Published: November 2022

Penelitian ini bertujuan untuk meningkatkan keaktifan belajar siswa kelas IV menggunakan model Problem Based learning pada pembelajaran IPS. Penelitian ini menggunakan metode penelitian tindakan kelas yang dilaksanakan sebanyak dua siklus. Setiap siklus dilaksanakan dalam satu kali pertemuan dengan empat tahap kegiatan yaitu, perencanaan, tindakan, observasi, dan refleksi.Subjek penelitian adalah siswa kelas IV SD Negeri 4 Sawahan dengan jumlah 27 orang. Teknik pengumpulan data yang digunakan adalah observasi, dokumentasi, dan tes. Hasil penelitian pra siklus menunjukkan bahwa hasil rata-rata persentase ketuntasan keaktifan belajar siswa khususnya pada mata pelajaran IPS sebesar 50,26% dengan predikat rendah, sedangkan pada siklus I memperoleh persentase ketuntasan sebesar 68,78% dengan predikat sedang, kemudian meningkat sebesar 80,68% pada siklus II dengan predikat tinggi. Dengan demikian dapat disimpulkan bahwa penggunaan model Problem Based learning dapat meningkatkan keaktifan belajar pada pembelajaran IPS bagi siswa sekolah dasar.
Peningkatan Hasil Belajar Peserta Didik Melalui Model Pembelajaran Problem Based Learning Tema 1 Subtema 1 Mata Pelajaran Matematika Pada Peserta Didik Kelas III SD Negeri Tegowanu 2 Tahun Pelajaran 2022/2023
Authors: Maulana Irfan
Published: November 2022

Latar belakang masalah penelitian ini bahwa dalam pembelajaran Tema terutama pada konsep Matematika banyak mengalami kesulitan. Maka dari itu perlu diadakan penelitian untuk memperbaiki serta memperoleh metode yang tepat untuk mengatasi masalah ini. Adapun solusi yang digunakan untuk mengatasi masalah dalam penelitian ini adalah dengan menggunakan model pembelajaran. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) yang bertujuan untuk mendekatkan penggunaan model pembelajaran PBL. Pengumpulan data dilakukan dengan mengadakan observasi, dan tes hasil belajar untuk melengkapi data yang ingin diungkap. Dalam penelitian ini, menggunakan data statistik sederhana yaitu : observasi. Adapun urutan kegiatan penelitian mencakup : (1) perencanaan, (2) pelaksanaan, (3) observasi, dan (4) refleksi. Hasil penelitian ini adalah adanya peningkatan yang signifikan terhadap hasil belajar peserta didik yaitu pada siklus I pembelajran 1 rata-rata anak adalah Dari hasil belajar siswa pada tahap siklus III diperoleh 17,24% atau 5 siswa masih belum tuntas dan 82,76% atau 24 siswa telah tuntas dalam pembelajaran Matematika sehingga hasil belajar siswa pada siklus III dalam kualifikasi sangat tinggi.
Estrés académico en estudiantes de enfermería durante la pandemia de COVID-19
Authors: Carreón-Gutiérrez Carlos Alberto , De los Reyes-Nieto Laura Roxana , Vázquez-Treviño María Guadalupe Esmeralda
Published: November 2022

ResumenIntroducción: Los estudiantes de enfermería se encuentran expuestos a diversos factores que propician estrés académico, por lo tanto, se deben identificar los factores, los síntomas que se llegan a manifestar y las estrategias que los estudiantes emplean para afrontarlo.Objetivo: Evaluar el estrés académico en estudiantes de enfermería durante la contingencia por COVID-19, considerando las características académicas y sociodemográficas.Metodología: Estudio transversal, descriptivo y correlacional. La muestra fue 690 estudiantes de enfermería inscritos durante el periodo agosto-diciembre 2020. Se utilizó el cuestionario SISCO-21 para evaluar el nivel de estrés académico, un formulario de datos académicos, sociodemográficos y de salud referente a COVID-19.Resultados: El 23.3% de estudiantes mostraron un nivel de estrés académico severo, donde la prevalencia es mayor en mujeres. Los principales estresores fueron la sobrecarga de tareas y el tiempo limitado para realizar trabajos. También se identifican asociaciones significativas entre el nivel de estrés académico con familiar enfermo de COVID-19 y tener contacto con personas con sospecha de la enfermedad.Discusión: El estrés académico en estudiantes de enfermería durante la pandemia ha sido poco estudiado, aunque existen aproximaciones de ello. Los resultados reflejan parte de la situación de estrés en estudiantes durante la pandemia de COVID-19 y la transición a la virtualidad de las clases.Conclusión: Considerar estas situaciones nos ayudará a comprender las posibles repercusiones que a observar en relación con los fenómenos de reprobación y/o deserción académica de estudiantes de enfermería durante los siguientes periodos.
Revisión documental de las características y tipos de cubrebocas como barreras protectoras contra virus
Authors: Cruz-Bello Patrícia , Flores-Estrada Jaime , Flores-Merino Miriam Verónica
Published: November 2022

Introducción: El cubrebocas, también conocido como mascarilla, se ha vuelto una de las medidas sanitarias más discutidas entre la población debido a la pandemia. La gran diversidad de opciones hace que la elección de un cubrebocas resulte una tarea difícil, más cuando la seguridad es la principal preocupación.Objetivo: Realizar una revisión de artículos científicos y de normatividades disponibles sobre las características de los cubrebocas.Métodogía: Se realizó una revisión de la literatura. Para este objetivo se utilizó la base de datos de Google Scholar en inglés con restricción de años de publicación en un intervalo entre 2006 a 2021, se incluyeron solamente artículos científicos de investigación o de revisión.Resultados: A pesar de la importancia actual que tiene este tema, son pocos los estudios que abordan y prueban la eficacia real de los cubrebocas, esto aunado a la gran diversidad de opciones que puede hacer que la elección de un cubrebocas resulte en una tarea complicada. En este trabajo se analizaron ocho artículos que cumplieron con los criterios de inclusión.Conclusión: Los materiales usados y el número de capas son factores importantes para la efectividad del cubrebocas. Entre otros factores también se encuentran el ajuste y uso adecuado, así como la carga viral en el medio ambiente.
Ethics, a humanitarian act in Nursing and Gerontological research
Authors: Bello Patricia Cruz , Garrido Ana Laura Mandujano
Published: November 2022

Speaking of ethics in the field of nursing research entails the guided search for solutions to problems which are susceptible to intervention from human health sciences. In the disciplines of nursing and obstetrics, there is direct interaction between the professional and the patient at different stages of the process. There are numerous rules and criteria that every professional must learn and put into practice. A model of beliefs, personal family values, and the new normal are reflected in the professional performance of each individual.
El cuidado paliativo en la práctica de Enfermería: una revisión narrativa
Authors: De La Cruz-Martínez Alejandra , Gallegos-Torres Ruth Magdalena
Published: November 2022

Introducción: Ante las necesidades sentidas y expresadas de pacientes que requieren cuidados paliativos, se establece un proceso de atención que contempla una intervención terapéutica del profesional de enfermería.
Objetivo: Identificar a través de una revisión de literatura, implicaciones de cuidados paliativos dirigidos a pacientes con enfermedad crónica y terminal.
Metodología: Esta revisión narrativa descriptivo-analítica presenta el estado actual de la inclusión teórica-metodológica del cuidado paliativo en la práctica de Enfermería. La búsqueda bibliográfica fue: inglés, español y portugués, durante febrero-mayo 2020 en bases de datos: PUBMED, MEDLINE, LILACS Y BVS SECPAL.
Resultados: En la búsqueda se obtuvieron un total de 408 artículos. Posteriormente con los estudios que cumplieron los criterios de inclusión se implementó la revisión PRISMA en donde 31 artículos filtrados cumplieron los ítems a evaluar por la guía. Lo que justifica la implementación de marcos normativos, modelos organizativos asistenciales, criterios de admisión al tratamiento paliativo, alcances de intervención terapéutica, perspectivas del cuidado y competencias del profesional de enfermería.
Discusión: Estudios sobre cuidados paliativos indican la necesidad de establecer el modelo de intervención terapéutica en México que resuelve necesidades específicas de pacientes.
Conclusiones: Los cuidados paliativos deben ser prioridad en políticas de salud pública, considerando planificación eficiente, garantiza atención especializada y oportuna de la enfermedad que amenaza al paciente.
Salud Mental en Universitarios Durante el COVID-19
Authors: Beltrán-Rosas Juana
Published: November 2022

Con el desarrollo global de la enfermedad por coronavirus (COVID-19), los problemas psicológicos de la población se han agravado1.
Para los estudiantes universitarios, los niveles elevados de angustia psicológica y las consecuencias académicas negativas posteriores son frecuentes en circunstancias normales2.
La pandemia de COVID-19 ha colocado una carga de salud mental sin precedentes en los estudiantes, que requieren urgentemente más exámenes e intervención inmediata. Se han incrementado los factores estresantes académicos en una población con niveles elevados de estrés preexistente, frente a una capacidad potencialmente reducida para confiar en las estrategias típicas de afrontamiento, como la familia, que puede estar experimentando una mayor angustia3.
Perfil del profesional de enfermería en urgencias
Authors: Valdez-Salinas Xochitl , Arana-Gómez Beatriz , García-Hernández Ma. de Lourdes , Salgado-Guadarrama Jannet Delfina
Published: November 2022

Introducción. Tras el paso del tiempo los avances tecnológicos, farmacológicos y técnicas han generado la necesidad de contar con un profesional de enfermería especializado, cuyo perfil cumpla con las competencias necesarias que le permita ejercer con un amplio criterio en cada una de las funciones desempeñadas.
Objetivo. Describir el perfil del profesional de enfermería en el servicio de urgencias desde la perspectiva filosófica de Patricia Benner que facilite visualizar la necesidad de contar con personal de enfermería experto.
Método. Es una investigación con enfoque cualitativo, prospectivo, descriptivo y exploratorio; participaron 9 profesionales de enfermería del servicio de urgencias, se aplicó una entrevista estructurada a profundidad.
Resultados. Se obtuvieron características del perfil que requiere el profesional de enfermería para atender a pacientes en el servicio de urgencias.
Conclusiones. Trabajar con la vida y salud de cada individuo implica no solo responsabilidades, conocimientos, dominio del de procedimientos y técnicas, sino compromisos y personal altamente calificado y con valores, son algunas de las características del perfil profesional de enfermería que deben tener para ejercer en el servicio de urgencias.
THE TOURIST MARKET IN UKRAINE: TRENDS AND HIDDEN OPPORTUNITIES
Authors: HAPONENKO Hanna , SHAMARA Irina , YEVTUSHENKO Olena
Published: November 2022

Introduction. The analysis of the tourist market of Ukraine is carried out and on its basis prospects of development are given in article. According to the World Economic Forum, over the past two years, Ukraine has had the fastest growth rate in the sub-region, having risen by 10 places and ranked 78th in the world in the Travel and Tourism Competitiveness Index. Instead, the World Tourism and Travel Council's growth forecast for the domestic tourism industry over the coming years is rather insignificant and driven primarily by a small amount of investment in the sector.
The purpose of the article is to highlight the current trends and hidden opportunities for the Ukrainian tourist market development in the conditions of unstable socio-economic situation in Ukraine and in the world, as well as to identify perspectives of this phenomenon.
Research methodology. The study uses theoretical, methodological and systematic methods of source base analysis, descriptive and structural analysis to evaluate the state of the tourism market in Ukraine and its development prospects.
Results of this study: It was found that the number of Ukrainian tourists in European resorts has increased since the visa-free regime. With the appearance of low-cost companies in Ukraine, transport infrastructure has improved, regional airports have begun to develop and new routes have been opened, which has significantly affected the number of tourists. The increase in the passenger traffic of the major Ukrainian airports is being observed. The project "Tourist Clusters 300+" was created, which according to the initiators of the project will bring to the country up to 1.5 billion dollars investment.
Conclusions. In general, Ukraine has become more accessible to foreigners and domestic tourists alike. Among the priority areas for tourism development in Ukraine are the domestic tourism development, promotion of the country abroad, infrastructure and education in the tourism sector.
Keywords: tourist market, inbound travel, outbound travel, low cost airlines, tourist clusters.
Información de interrupciones en el calendario de radioterapia con Mosaiq
Authors: Barbés Fernández Benigno , Hernández Solano Lorena del Carmen
Published: November 2022

Se presenta una metodología para obtener automáticamente  de una base de datos de un sistema de información  oncológica la información necesaria para realizar un  seguimiento de interrupciones en los tratamientos de  radioterapia, de una manera rápida y fiable.
Dry needling with electrical stimulation for the treatment of a pediatric patient with spastic cerebral palsy: a case report
Authors: Okonski Temrah , Dommerholt Jan
Published: November 2022

The patient was a 6-year-old child with spastic quadriplegic cerebral palsy (CP) categorized with the gross motor function classification system (GMFCS) as a level IV and a Modified Modified Ashworth Scale (MMAS) of 2 for the bilateral hamstring and hip adductor muscles, and 3 for the bilateral gastrocnemius muscles. This patient’s limited range of motion significntly affected the caregiver’s ability to perform activities of daily living (ADLs). Dry needling (DN) is considered a standard treatment (TX) when treating adults with poor range of motion. This article aims to place intramuscular electrical stimulation (IMES), the delivery of an electrical current through a monofilament needle into targeted trigger points (TrPs) within the context of treating children with spastic CP. Following IMES TXs over 32 months that totaled 12 left hamstring TXs, 13 right hamstring TXs, 13 hip adductor TXs, 21 left gastrocnemius TXs, and 18 right gastrocnemius TXs, the patient demonstrated an increase in passive range of motion (PROM) of the hamstring, hip adductors, and gastrocnemius muscles. These gains equated to ease in ADLs. Both the Pediatric Evaluation of Disability Inventory (PEDI, PEDI-Caregiver Assistance Scale) and the Goal Attainment Scale (GAS) demonstrated decreased caregiver burden. The child’s GMFCS level and the MMAS did not change. Further data collection related to treating children with spasticity using IMES is indicated to validate this type of TX with this patient population.
An accelerated Rauhut-Currier dimerization enabled synthesis of (±)-Incarvilleatone and anticancer studies
Authors: Kotammagari Tharun K , Misra Sweta , Paul Sayantan , Kunte Sunita , Gonnade Rajesh G , Santra Manas K , Bhattacharya Asish K
Published: November 2022

The total synthesis of racemic incarvilleatone has been achieved by utilizing unexplored accelerated Rauhut-Currier (RC) dimerization. The other key steps of the synthesis are oxa-Michael and aldol reactions in a tandem sequence. Racemic incarvilleatone was separated by chiral HPLC and the configuration of each enantiomer was determined by single-crystal X-ray analysis. In addition, one-pot synthesis of (±)-incarviditone has been achieved from rac-rengyolone by using KHMDS as a base. We have also assessed the anti-cancer activity of all the synthesized compounds in breast cancer cells nonetheless, they exhibited very limited growth suppression activity.
Is Honesty the Best Policy? Examining the Effect of Product Safety Communication on Blame Attributions in Causal Chains
Authors: Obenauer William G. , Kalsher Michael J.
Published: November 2022

This paper extends research on attribution theory through three studies examining how the accuracy and explicitness of product safety information communicated to various entities within a causal chain influences blame attributions after an accident. Unlike prior research, we find consistent evidence that entities in the causal chain were able to limit blame attributions by communicating safety information that’s quality met or exceeded the quality of information available to that entity. Entities did not, however, benefit from providing more accurate information than what had been communicated to them by previous members of the causal chain. This insight suggests that the controllability of information communicated played an important role in the relationship between accurate communication and blame attributions. Our findings provide meaningful insight into steps that organizations can take to limit their potential for receiving blame following an accident, helping to bridge the gap between basic and applied research.
Migration, the Quality of Life, and Economic Opportunities in the U.S. Revisited: Impacts of Round-Trip Work Commute Time and Rent or Single-Family Housing Prices
Authors: Cebula Richard J.
Published: November 2022

Given the importance to businesses of having a better understanding of factors that influence migration, this study argues that there are two dimensions of the quality of life and economic opportunities that have largely been ignored in previously published studies of migration patterns in the U.S.: the impacts of (1) the costs of commuting between one’s residence and one’s place of employment and (2) apartment rent-levels and single-family housing price levels. It is hypothesized here that the greater the commute time between one’s prospective place of residence and one’s prospective place of employment, the greater the costs associated with in-migration to that potential residence in terms not only of the value of time expended round-trip in commuting but also the opportunity costs and mental health costs (stress) of that time along with the greater pecuniary costs that accompany longer commutes. Therefore, it is hypothesized that in-migration to an area is a decreasing function of commute time associated with that area. A second hypothesis proffered here is that greater housing-cost levels reduce disposable real income and hence utility. More specifically, we argue that either higher apartment rent levels or higher prices on single family homes reduce disposable real income and thereby reduce household well-being; hence, in-migration to an area is hypothesized to be a decreasing function of those higher rent levels and higher home prices. Based upon panel 2SLS estimates, where net in-migration and gross in-migration over the 2010-2017 period are separately considered, there is strong initial empirical support for both hypotheses.
A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoideae) with pseudopetioliform leaves from Arfak Mountains, Papua, Indonesia
Authors: Keim A.P. , Kartawinata K. , Mustaqim W.A. , Sujarwo W.
Published: November 2022

A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoidea) with obvious pseudopetiolate basal leaf from Mount Tombrok in the vicinity of the Arfak Mountains, West Papua, Indonesian New Guinea, is newly described as Freycinetia pseudopetiolata A.P.Keim,
K. Kartawinata & W. Sujarwo. The possession of the pseudopetiolate basal leaf form places this new species in the section Pseudopetiolosae; thus marking the first presence of the section for mainland New Guinea.
SURVIVAL ANALYSIS OF THAI MICRO AND SMALL ENTERPRISES DURING THE COVID-19 PANDEMIC
Authors: Leurcharusmee Supanika , Maneejuk Paravee , Yamaka Woraphon , Thaiprasert Nalitra , Tuntichiranon Nathapong
Published: November 2022

Micro and small enterprises (MSEs) are important to the local economy and are the most crucial source of employment in Thailand. Using the three-round survey data, we assess the impact of COVID-19 on the survival probability of MSEs in the tourism and manufacturing sectors. Enterprise characteristics such as owner characteristics, employment and business strategies are examined as potential factors to mitigate or stimulate business failures. The Cox proportional hazards model and Kaplan–Meier estimator are employed. Our findings reveal that the survival probability paths from the three rounds of survey show a gradual decrease of survival probability from the first week of interview and approximately 50% of MSEs could not survive longer than 52 weeks during the COVID-19 pandemic. We also find that the survival of MSEs mainly depends on location, number of employees, and business model adjustment, namely operation with social distancing and online marketing. Particularly, retaining employees and not reducing the working hours are one of the key factors increasing the survivability of MSEs. However, the longer length of the crisis reduces the contribution of these key factors. The longer the period of the COVID-19 pandemic, the lower the chance of MSEs survivability.
Active Galactic Nuclei Continuum Reverberation Mapping Based on Zwicky Transient Facility Light Curves
Authors: Guo 郭 Hengxiao 恒潇 , Barth Aaron J. , Wang Shu
Published: November 2022

We perform a systematic survey of active galactic nuclei (AGNs) continuum lags using ∼3 days cadence gri-band light curves from the Zwicky Transient Facility. We select a sample of 94 type 1 AGNs at z < 0.8 with significant and consistent inter-band lags based on the interpolated cross-correlation function method and the Bayesian method JAVELIN. Within the framework of the “lamp-post” reprocessing model, our findings are: (1) The continuum emission (CE) sizes inferred from the data are larger than the disk sizes predicted by the standard thin-disk model. (2) For a subset of the sample, the CE size exceeds the theoretical limit of the self-gravity radius (12 lt-days) for geometrically thin disks. (3) The CE size scales with continuum luminosity as R
CE ∝ L
0.48±0.04 with a scatter of 0.2 dex, analogous to the well-known radius–luminosity relation of broad Hβ. These findings suggest a significant contribution of diffuse continuum emission from the broad-line region (BLR) to AGN continuum lags. We find that the R
CE–L relation can be explained by a photoionization model that assumes ∼23% of the total flux comes from the diffuse BLR emission. In addition, the ratio of the CE size and model-predicted disk size anticorrelates with the continuum luminosity, which is indicative of a potential nondisk BLR lag contribution evolving with the luminosity. Finally, a robust positive correlation between the CE size and black hole mass is detected.
The Instantaneous Redshift Difference of Gravitationally Lensed Images: Theory and Observational Prospects
Authors: Wang Chengyi , Bolejko Krzysztof , Lewis Geraint F.
Published: November 2022

Due to the expansion of our universe, the redshift of distant objects changes with time. Although the amplitude of this redshift drift is small, it will be measurable with decade-long campaigns by the next generation of telescopes. Here we present an alternative view of the redshift drift which captures the expansion of the universe in single-epoch observations of the multiple images of gravitationally lensed sources. Considering a sufficiently massive lens, with an associated time delay of order decades, simultaneous photons arriving at a detector would have been emitted decades earlier in one image compared to another, leading to an instantaneous redshift difference between the images. We also investigated the peculiar velocity which may influence the redshift difference in observation. While still requiring the observational power of the next generation of telescopes and instruments, the advantage of such a single-epoch detection over other redshift drift measurements is that it will be less susceptible to systematic effects that result from requiring instrument stability over decade-long campaigns.