bluuebunny/crossref_metadata_2025 huggingface dataset:
Uji Banding Laboratorium Kalibrasi : Kalibrasi Sound Level Meter dengan Artefak Rion NL-10A
Authors: Budi Purwaka Pramana , Taufik Muhammad , Lahtiani Susy , Jamaludin Jamaludin
Published: May 2022

Uji Banding Laboratorium Kalibrasi: Kalibrasi Sound Level Meter dengan Artefak Rion NL-10A. Seluruh instrumen yang berkaitan dengan mutu pengujian harus tertelusur pada standar nasional, sehingga dibutuhkan kegiatan kalibrasi. Istilah uji profisiensi dalam lingkup laboratorium kalibrasi dikenal dengan Uji Banding Laboratorium Kalibrasi (UBLK). Kegiatan yang dilakukan adalah membandingkan hasil pengukuran suatu laboratorium terhadap alat ukur kalibrasi standar yang telah ditentukan (artefak) dengan hasil pengukuran laboratorium peserta lainnya. Artefak diukur bergantian oleh tiap laboratorium sesuai dengan jadwal yang disepakati. Kegiatan ini bertujuan untuk memenuhi kewajiban laboratorium untuk mengikuti uji banding kalibrasi dalam lingkup akreditasinya. Pengambilan data UBLK dilakukan oleh 6 (enam) laboratorium peserta untuk artefak Sound Level Meter (SLM) berlangsung pada tanggal 2 Mei - 10 Agustus 2018. Satu alat SLM terintegrasi dan presisi merek Rion NL-10A tipe 1 digunakan sebagai artefak. Parameter yang diukur dan dilaporkan dalam UBLK ini adalah pembobotan frekuensi A dan C pada tekanan bunyi normal 94 dB dalam rentang frekuensi 63 Hz – 8000 Hz dengan pita pemfilteran 1/1 oktaf, ditambah frekuensi 12500 Hz response time “F”. Hasil dari laboratorium peserta dibandingkan dengan nilai acuan sehingga didapatkan En-score, dan kriteria penilaian kinerja laboratorium acuan sesuai SNI ISO 13528:2016 dan ISO GUM, Hasil perhitungan En-score menunjukkan kategori memuaskan di hampir semua titik ukur. Ada 3 (tiga) laboratorium mendapatkan kategori tidak memuaskan yaitu pada bobot frekuensi A dengan titik ukur 12500 Hz yang dilakukan oleh Lab D, pada bobot frekuensi C dengan titik ukur 4000 Hz yang dilakukan oleh Lab E, serta titik ukur 12500 Hz yang dilakukan oleh Lab B dan Lab D. Diperlukan investigasi dan tindakan perbaikan oleh laboratorium yang memperoleh kategori tidak memuaskan.
Efektifitas Berbagai Jenis Bahan Peredam Terhadap Penurunan Tingkat Kebisingan
Authors:   Universitas malahayati Indonesia, Natalia Desti
Published: May 2022

Efektifitas Berbagai Jenis Bahan Peredam Terhadap Penurunan Tingkat Kebisingan. Kebisingan adalah bunyi yang tidak diinginkan dari usaha atau kegiatan dalam tingkat dan waktu tertentu yang dapat menimbulkan gangguan kesehatan dan kenyamanan lingkungan. Kebisingan dapat dikendalikan atau direduksi, salah satunya dengan penggunaan bahan peredam seperti kain perca, serabut kelapa, busa, dan lain-lainnya Di samping dapat mereduksi kebisingan, penggunaan bahan limbah tersebut sebagai bahan peredam, dapat menaikkan nilai tambah. Penelitian ini dilakukan untuk mengetahui pengaruh berbagai jenis bahan peredam (busa, kain perca, dan serabut kelapa) terhadap kebisingan. Penelitian dilakukan dengan pemasangan media peredam kebisingan pada kotak berukuran 70 cm x 70 cm x 40 cm yang terbuat dari bahan plywood jenis sengon meranti. Alat yang digunakan untuk mengukur kebisingan adalah Sound Level Meter (SLM). Pengambilan data tingkat kebisingan dilakukan 2 (dua) kali ulangan dengan interval pengambilan 5 (lima) detik selama +10 menit. Pengukuran dilakukan secara langsung dari sumber suara berupa speaker. Hasil penelitian menunjukkan bahwa tanpa penggunaan bahan peredam, tingkat kebisingan sebesar 89,7 dB(A) Penggunaan kain perca dapat menurunkan tingkat kebisingan menjadi 84,5 dB(A) dengan efisiensi penurunan sebesar 5,79%, sementara serabut kelapa dan busa dapat menurunkan tingkat kebisingan masing-masing menjadi 87,4 dan 87,6 dB(A) dengan efisiensi penurunan 2,56% dan 2,34 %. Kesimpulan dari penelitian ini adalah ketiga jenis bahan yang digunakan dapat mereduksi tingkat kebisingan. Kain perca memberikan hasil paling baik sebagai bahan peredam dibandingkan dengan dua bahan lainnya yang digunakan.
Novel Recurrence Relations for Volumes and Surfaces of N-Balls, Regular N-Simplices, and N-Orthoplices in Real Dimensions
Authors: Łukaszyk Szymon
Published: May 2022

The study examines n-balls, regular n-simplices, and n-orthoplices in real dimensions using novel recurrence relations that removed indefiniteness present in known formulas. They show that in the negative, integer dimensions volumes of n-balls are zero if n is even, positive if n = -4k - 1, and negative if n = -4k - 3, for natural k. Volumes and surfaces of n-cubes inscribed in n-balls in negative dimensions are complex, wherein for negative, integer dimensions they are associated with integral powers of the imaginary unit. The relations are continuous for n Î ℝ and show that the constant of π is absent for 0 ≤ n < 2. For n < -1 self-dual n-simplices are undefined in the negative, integer dimensions, and their volumes and surfaces are imaginary in the negative, fractional ones, and divergent with decreasing n. In negative, integer dimensions n-orthoplices reduce to the empty set, and their real volumes and imaginary surfaces are divergent in negative, fractional ones with decreasing n. Out of three regular, convex polytopes present in all natural dimensions, only n-orthoplices, n-cubes (and n-balls) are defined in the negative, integer dimensions.
Analyzing Optimal Battery Sizing in Microgrids Based on the Feature Selection and Machine Learning Approaches
Authors: Khan Hajra , Nizami Imran Fareed , Mian Qaisar Saeed , Waqar Asad , Krichen Moez
Published: May 2022

Microgrids are becoming popular nowadays because they provide clean, efficient, and low-cost energy. To use the stored energy in times of emergency or peak loads, microgrids require bulk storage capacity. Since microgrids are the future of renewable energy, the energy storage technology employed should be optimized to generate electricity. Batteries play a variety of essential roles in daily life and are used at peak hours and during a time of emergency. There are different types of batteries i.e., lion batteries, lead-acid batteries, etc. Optimal battery sizing of microgrids is a challenging problem, that limits modern technologies such as electric vehicles, etc. It is important to know different battery features such as battery life, battery throughput, and battery autonomy to get optimal battery sizing for microgrids. Mixed-integer linear programming (MILP) is an established technique for the integration and optimization of different energy sources and parameters for optimal battery sizing. A new MILP based dataset is introduced in this work. Support vector machine (SVM) is the machine learning application used to estimate the optimum battery size. The impact of feature selection algorithms on the proposed machine learning-based model is evaluated. The performance of the six best-performing feature selection algorithms is analyzed. The experimental results show that the feature selection algorithms improve the performance of the proposed methodology. Ranker search shows the best performance with a Spearman’s rank-ordered correlation constant of 0.9756, linear correlation constant of 0.9452, Kendall correlation constant of 0.8488 and root mean squared error of 0.0525.
Quantitative Methods for the Use of Icg in Colorectal Surgery - An Updated Literature Review
Authors: Ionescu Sinziana
Published: May 2022

This review looks at the use of indocyanine green (ICG) in colorectal surgery, from a quantitative point of view. The main benefits of the ICG technique in colorectal surgery, can be summarized as follows: a)in the realization of the intraoperative fluorescence angiography as an adjuvant in the process of anastomosis, b)in the fluorescence-guided detection of lymph node metastases in colorectal cancer and, also, the sentinel lymph node technique, which was proven better than formal methods in some studies, c) marking with positive fluorescence a liver nodule as small as "just" 200 tumor cells, d) offering assistance in the diagnosis of a fistula, e)in the possibility to be used for tumor tattooing also, f)providing help in maintaining a clean surgical field and preventing wound infection in abdominoperineal resection. Apart from the qualitative intraoperative use of ICG, the method can be employed in association with quantitative methods, such as maximum intensity, relative maximum intensity, and various parameters of the inflow (time-to-peak, slope, and t1/2max), this latter category being more significantly associated with anastomotic leakage.
Prussian Blue Nanoparticle-Mediated Scalable Thermal Stimulation for Neuronal Differentiation
Authors: Blasa Stefania , Borzenkov Mykola , Pastori Valentina , Doveri Lavinia , Pallavicini Piersandro , Chirico Giuseppe , Lecchi Marzia , Collini Maddalena
Published: May 2022

Heating has been recently used as an alternative application to electrical stimulation to modulate excitability and to induce neuritogenesis and the expression of neuronal markers, but a long-term functional differentiation has not been described so far. Here we present the results obtained by a new approach for scalable thermal stimulation on the behavior of a model of dorsal root ganglion neurons, the F-11 cell line. Initially, we performed experiments of bulk stimulation in incubator for different time intervals and temperatures, and significant differences in neurite elongation and in electrophysiological properties were observed in cultures exposed at 41,5°C for 30 minutes. Thus, we exposed the cultures to the same temperature increase by irradiating, with a near infrared laser, a disc of Prussian Blue nanoparticles and poly-vinyl alcohol, that we stuck on the outer surface of the petri dish. In irradiated cells neurites were significantly longer and the electrophysiological properties (action potential firing frequency and spontaneous activity) were significantly increased compared to the control. These results suggest that a targeted thermal stimulation could be a promising technique to induce differentiation and support the future application of this method as a strategy to modify neuronal behavior in vivo.
Urinary Sodium Excretion Enhances the Effect of Alcohol on Blood Pressure
Authors: Jiang Xiyun , Anasanti Mila , Drenos Fotios , Blakemore Alex , Pazoki Raha
Published: May 2022

Abstract Background: Alcohol consumption is linked to urinary sodium excretion and both of these traits are linked to hypertension and cardiovascular diseases (CVDs). The interplay between alcohol consumption and sodium on hypertension, and cardiovascular diseases (CVDs) is not well-described. Here, we used genetically predicted alcohol consumption and explored relationships between alcohol consumption, urinary sodium, hypertension, and CVDs. Methods: We performed a comparative analysis among 295,189 participants from the prospective cohort of the UK Biobank (baseline data collected between 2006 and 2010). We created a genetic risk score (GRS) using 105 published genetic variants in Europeans that were associated with alcohol consumption. We explored relationships between GRS, alcohol consumption, urinary sodium, blood pressure traits, and incident CVD. We used linear, logistic regression and Cox proportional hazards (PH) models in our analysis. Results: Our analyses supported an interaction effect between alcohol GRS and urinary sodium on hypertension (P interaction =0.03) and CVD (P interaction =0.03). In presence of high urinary sodium excretion, alcohol GRS increases blood pressure in a more enhanced fashion. Conclusions: Our results show that decrease in urinary sodium excretion offsets the risk posed by genetic risk of alcohol consumption.
Spatiotemporal Assessment of Remotely Sensed LST Variability in Afghanistan during 2000-2021
Authors: Nabizada Ahmad Farid , Rousta Iman , Dalvi Marjan , Olafsson Haraldur , Siedliska Anna , Baranowski Piotr , Krzyszczak Jaromir
Published: May 2022

To investigate the dynamics of land surface temperature (LST) in Afghanistan in the period 2000-2021 and to assess the impact of such factors as soil moisture, precipitation, and vegetation coverage on it, remotely sensed soil moisture data from Land Data Assimilation System (FLDAS), precipitation data from Climate Hazards Group Infra-Red Precipitation with Station (CHIRPS), and NDVI and LST from Moderate Resolution Imaging Spectroradiometer (MODIS) were downloaded and correlations between them were analyzed using the regression method. The result shows that the LST in Afghanistan has a slightly decreasing, but insignificant trend during the study period (R=0.2, p-value=0.25), while vegetation coverage, precipitation, and soil moisture had an increasing trend. It was revealed that soil moisture has the highest impact on LST (R=0.7, p-value=0.0007), and the soil moisture, precipitation, and vegetation coverage explain almost 80% of spring (R2=0.73) and summer (R2=0.76) LST variability in Afghanistan. The LST variability analysis done separately for Afghanistan’s rivers subbasins shows that the LST of the Amu Darya subbasin had an upward trend in the study period, while for the Kabul subbasin the trend was downward.
Crocodilepox Virus Protein 157 is an Independently Evolved Inhibitor of Protein Kinase R
Authors: Rahman M. Julhasur , Tazi Loubna , Haller Sherry L. , Rothenburg Stefan
Published: May 2022

Crocodilepox virus (CRV) belongs to the Poxviridae family and mainly infects hatchling and juvenile Nile crocodiles. Most poxviruses encode inhibitors of the host antiviral protein kinase R (PKR), which is activated by viral double-stranded (ds) RNA formed during virus replication, resulting in the phosphorylation of eIF2 and subsequent shutdown of general mRNA translation. Because CRV lacks orthologs of known poxviral PKR inhibitors, we experimentally characterized one candidate (CRV157), which contains a predicted dsRNA-binding domain. Bioinformatic analyses indicated that CRV157 evolved independently from other poxvirus PKR inhibitors. CRV157 bound to dsRNA, co-localized with PKR in the cytosol, and inhibited PKR from various species. To analyze whether CRV157 could inhibit PKR in the context of a poxvirus infection, we constructed recombinant vaccinia virus strains that contain either CRV157 or a mutant CRV157 deficient in dsRNA binding in a strain that lacks PKR inhibitors. The presence of wild type CRV157 rescued vaccinia virus replication, while the CRV157 mutant did not. The ability of CRV157 to inhibit PKR correlated with virus replication and eIF2alpha phosphorylation. The independent evolution of CRV157 demonstrates that poxvirus PKR inhibitors evolved from a diverse set of ancestral genes in an example of convergent evolution.
Record of Tawny Nurse Shark (Nebrius ferrugineus) in Southern Morotai, North Maluku, Indonesia
Authors: Ichsan Muhammad , Bimantara Harimurti , Pridina Niomi , Wardhanie Adinda
Published: May 2022

Tawny nurse shark (Nebrius ferrugineus) is a species of carpet shark distributed across the tropical Indo-Pacific region. Tawny nurse shark is listed as “Vulnerable” on IUCN Redlist and rarely seen, recorded and studied in Indonesia. We recorded this species during SCUBA diving activity in Morotai waters in April 2022. Scientific record of the species is highly important for conservation and habitat management, particularly in Morotai, a region in North Maluku famous for shark-based marine tourism.
Non-Linear Reconstruction of Images from Patterns Generated by Deterministic or Random Optical Masks – Concepts and Review of Research
Authors: Smith Daniel , Gopinath Shivasubramanian , Arockiaraj Francis Gracy , Reddy Andra Naresh Kumar , Balasubramani Vinoth , Kumar Ravi , Dubey Nitin , Ng Soon Hock , Katkus Tomas , Selva Shakina Jothi , Renganathan Dhanalakshmi , Manueldoss Beaula Ruby Kamalam , John Francis Rajeswary Aravind Simon , Navaneethakrishnan Srinivasan , Inbanathan Stephen Rajkumar , Valdma Sandhra-Mirella , Periyasamy Angamuthu Praveen , Jayavel Amudhavel , Kumar Manoj , Ganeev Rashid A , Magistretti Pierre J , Depeursinge Christian , Juodkazis Saulius , Rosen Joseph , Anand Vijayakumar
Published: May 2022

Indirect imaging methods involve at least two steps, namely optical recording, and computational reconstruction. The optical recording process uses an optical modulator that transforms the light from the object into a typical intensity distribution. This distribution is numerically processed to reconstruct the object’s image corresponding to different spatial and spectral dimensions. There have been numerous optical modulation functions and reconstruction methods developed in the past years for different applications. In most cases, a compatible pair of optical modulation function and reconstruction method gives optimal performance. A new reconstruction method termed non-linear reconstruction (NLR) was developed in 2017 to reconstruct the object image in the case of optical scattering modulators. During the years, it was revealed that the NLR could reconstruct an object’s image modulated by an axicons, bifocal lenses and even exotic spiral diffractive elements, which generate deterministic optical fields. Apparently, NLR seems to be a universal reconstruction method for indirect imaging. In this review, the performance of NLR has been investigated for many deterministic and stochastic optical fields. Simulation and experimental results for different cases are presented and discussed.
Effects of Pulsatile Flow Rate and Shunt Ratio in Bifurcated Distal Arteries on Hemodynamic Characteristics Involved in Two Patient-Specific Internal Carotid Artery Sidewall Aneurysms: A Numerical Study
Authors: Yi Hang , Johnson Mark , Bramlage Luke C. , Bryan Ludwig , Yang Zifeng
Published: May 2022

The pulsatile flow rate (PFR) in the cerebral artery system and shunt ratios in bifurcated arteries are two patient-specific parameters which may affect the hemodynamic characteristics on the pathobiology of cerebral aneurysms (CAs). Accordingly, a systematic study was employed to investigate the effects of the two parameters on hemodynamic characteristics in two internal carotid artery sidewall aneurysms (i.e., ICASA-1 and ICASA-2) models. Numerical results indicate larger PFRs can cause higher WSS in some local regions of the aneurysmal dome that may increase the probability of small/secondary aneurysms generation than under smaller PFRs. The low WSS and relatively high oscillatory shear index (OSI) could appear under a smaller PFR, which has the potential to cause aneurysmal sac growth and rupture. However, the variances in PFRs and bifurcated shunt ratios have rare impacts on the time-average pressure distributions on the aneurysmal sac, although a higher PFR can contribute more to the pressure increase in ICASA-1 dome due to the relatively stronger impingement by the redirected blood stream than in ICASA-2. Simulation results also present the variances of shunt ratios have rare impacts on the hemodynamic characteristics in sacs, mainly because the bifurcated location is not close enough to the sac in present models. Furthermore, it has been found that the vortex location plays a major role in the temporal and spatial distribution of the WSS on the luminal wall, varying significantly with the cardiac period.
Optimization and Hydration Mechanism of Ecological Ternary Cements Containing Phosphogypsum
Authors: Hou Jiaojiao , Ni Xiaoyang , Ma Baosong
Published: May 2022

Ecological ternary cements (ECP) were perpared with powders of phosphogypsum (PG), fly ash (FA) and portland cement (PC). The evolution mechanism of the hydration product structure was characterized through macro and micro experiments.The thermodynamic characteristics of solid phase, solid solution phase and aqueous solution in process of hydration about phosphogypsum-fly ash-cement ternary cementitious system were studied based on the Gibbs-free-energy C-S-H thermodynamic model and GEM-Selektor software, and compared with experimental results. The results show that in the hydration reaction the thermodynamic interaction between mineral single-phase and hydration products plays an important role in the spatio-temporal distribution of ions in the cementitious system. The values of CaO、SiO2Hand H2Ohyd gradually increased with the increase of Ca/Si ratio, while the values of CaOext and H2OOH showed a positive proportional relationship, and the values of SiO2H and SiO2 showed an inverse proportional relationship. GEM-Selektor is accurate in the simulation calculation of the total amount of AFt and AFm mineral phases which quantitatively analysis the correlation between C-S-H gels formation and C3S with complex decomposition ion groups.
Incorporation of Torsion Springs in a Knee Exoskeleton for Stance Phase Correction of Crouch Gait
Authors: Bumbard Katy , Herrington Harold , Goh Chung-Hyun , Ibrahim Alwathiqbellah
Published: May 2022

Crouch gait is a motor complication commonly associated with cerebral palsy, spastic diplegia, stroke, and motor-neurological pathologies, broadly defined as knee flexion in excess of 20° in the gait cycle. Uncorrected crouch gait results in fatigue, joint degradation, and loss of ambulation. Torsion springs have been used in cycling to store energy in knee flexion to reduce fatigue in the quadriceps during knee extension. SolidWorks was used to design a passive exoskeleton for the knee, incorporating torsion springs of stiffnesses 20,000 N/mm and 30,000 N/mm at the knee joint to correct four different crouch gaits. OpenSim was used to gather data from moments produced and knee angles from each crouch gait and the normal gait. Motion analysis of the exoskeleton was simulated using knee angles for each crouch gait and compared with moments produced with the normal gait moments in the stance phase of the gait cycle. All crouch gait moments were significantly reduced, and the correction of peak crouch moments was achieved corresponding to the normal gait cycle during the stance phase. These results offer significant potential for nonsurgical and less invasive options for wearable exoskeletons in crouch gait correction.
Исследование вихревых структур при сверхзвуковом обтекании тандема крыльев
Authors: Борисов Виталий Евгеньевич , Borisov Vitaly Evgenyevich , Константиновская Татьяна Витальевна , Konstantinovskaya Tat'yana Vital'evna , Луцкий Александр Евгеньевич , Lutsky Alexander Evgenjevich
Published: May 2022

С использованием математической модели нестационарных осредненных по Рейнольдсу и Фавру уравнений Навье-Стокса (URANS) проведено численное моделирование сверхзвукового (М=3) обтекания тандема крыльев конечного размаха. Исследовано взаимодействие концевого вихря от переднего крыла, установленного
под углом 10 градусов, с поверхностью второго крыла, расположенного вниз по
потоку. Показано, что в процессе этого взаимодействия образуется несколько вторичных вихрей с разными направлениями вращения. Использованы современные
методы идентификации и визуализации вихревых структур на основе Liutex-критерия.
Diversity in education: first approximations about gender, body and sexuality
Authors: Oliveira Anselmo Lima de , Dias Alfrancio Ferreira
Published: May 2022

They say the world is full of diversity. Looking sideways, it is possible to see that he is not one, and that diversity is part of our daily lives. When feeling flood, we exhaust; when we try to move, we get cold; what insults us becomes atonement; even if we come to situate, soon afterwards, we disjoint; when we are perplexed, we are and want to be unhindered; we deny it, but ahead we nod. I invited Michel Foucault, bell hooks, Marlucy Paraíso and other researchers to discuss sexual and gender diversity in the field of education. As part of post-critical research, this work makes theoretical-methodological approaches to sexuality, gender and the body. Not conclusive, we say of the importance of continuing debating the aforementioned themes.
Pelatihan DAI bagi Remaja Masjid pada Forum Remaja Masjid se-Kabupaten Karanganyar
Authors: Syukri Hanifullah , Yustanto Henry , Sawardi F.X. , Nugroho Miftah , Widyastuti Chattri S , Widyastuti Hesti , Ginanjar Bakdal
Published: May 2022

Remaja masjid merupakan salah satu elemen yang turut pula membantu kemakmuran masjid. Salah satu wujud kemakmuran masjid yang dilakukan oleh remaja masjid adalah turut pula mengisi kegiatan keagamaan melalui ceramah atau pidato. Dengan turut berceramah atau berpidato diharapkan remaja masjid siap meneruskan penceramah yang usianya telah lanjut. Agar kemampuan pidato remaja masjid semakin mumpuni, pelatihan pidato bagi mereka perlu dilakukan. Hal ini juga berlaku di remaja masjid yang terdapat di Kabupaten Karanganyar. Supaya remaja masjid lancar dalam berpidato, kegiatan pelatihan berpidato diadakan dengan tujuan agar mereka memiliki pengetahuan dan pemahaman perihal teknik berpidato yang baik di depan umum.
Pendampingan Pembuatan Karya Ilmiah dalam Rangka Peningkatan Profesionalitas Guru di SMK Negeri 1 Gantiwarno Klaten
Authors: Salamah Umi , Wiharto Wiharto , Suryani Esti , Prakisya Nurcahya PT
Published: May 2022

Aturan kenaikan pangkat saat ini yang mensyaratkan adanya publikasi ilmiah banyak menjadi hambatan bagi para guru. Hal ini disebabkan karena guru mengalami kesulitan memulai menulis artikel yang disebabkan, antara lain kesulitan menentukan dan mengembangkan ide, kurangnya pemahaman tentang teknik penulisan, dan gagap teknologi. Akibatnya, guru kesulitan dalam menaikkan jabatan fungsionalnya. Untuk itulah dilakukan Pendampingan Pembuatan Karya Ilmiah bagi Guru SMK dalam Rangka Peningkatan Profesionalitas Guru di SMK Negeri 1 Gantiwarno Klaten. Metode pendampingan terdiri dari 5 tahapan yaitu (1) survey dan studi analisis situasi, (2) introduksi sosialisasi kegiatan dan konsep umum pembuatan artikel ilmiah, (3) edukasi dan pendampingan penggunaan Zotero dan SPSS, (4) konsultasi dan pendampingan, dan (5) evaluasi. Dari pendampingan ini dihasilkan 70% dari peserta menghasilkan draft artikel ilmiah/PTK. Hasil kuisioner yang diberikan pada peserta menunjukkan dampak positif bagi guru untuk bisa membuat karya ilmiah, terbukti dengan peningkatan minat, prioritas, dan target dalam membuat karya ilmiah. Bisa disimpulkan bahwa tujuan dari pendampingan ini yaitu meningkatkan kompetensi guru dalam menulis artikel, publikasi ilmiah, dan pengolahan data hasil penelitian berhasil dilaksanakan dengan baik
Pengaruh Model Pembelajaran Blended Learning Terhadap Keaktifan Belajar Siswa Kelas IV SD Se-Gugus Ahmad Yani Kecamatan Majenang
Authors: Damayanti Shinta , Sari Fita Permata
Published: May 2022

Student learning activity is very important and affects the character of students. This study aims to determine the influence of blended learning models on students' learning activity. This research uses quantitative approach with experimental method. The population in this study was grade IV elementary school students in Ahmad Yani group of 195 with a sample of 61 students. Data collection techniques using questionnaires. The validity test of the instrument used is the validity of the contents and look for different power using the product moment correlation formula. Instrument reliability using the Alpha Cronbach formula. The prerequisite test of the analysis conducted is a test of normality and homogeneity.The results prove that blended learning model has a significant effect on students' learning activity. This can be indicated by a sig value of 0.001 ≤ 0.05.
Tsunami-Induced Drift Motion and Numerical Simulation Using Various Models
Authors: Morita Riko , Nojima Kazuya , Chida Yu , Arikawa Taro ,   Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan,   Research and Development Center, Nippon Koei Co., Ltd., Tsukuba, Japan,   Port and Airport Research Institute, Yokosuka, Japan
Published: May 2022

In this study, laboratory experiments were conducted to observe drifting of objects transported by a tsunami. Tsunami-induced drift motion was simulated using various numerical models, and the results were compared. Experiments were performed with and without obstacles in the terrain, and the differences were assessed. The spread of debris occurred faster in the presence of an obstacle. In the absence of structures in the flow, the debris did not shift perpendicular to the flow direction in any of the numerical models. The experimental results were generally consistent with the calculated results, although they varied in a normally distributed manner. However, when there was a downstream structure, the uncertainty of the drift motion was not accurately simulated. Furthermore, it was observed that debris moved behind obstacles. A numerical model that calculated the collision force between debris using momentum conservation reproduced this phenomenon. Thus, the numerical model with the drag and inertia coefficients was fairly accurate.
Prediction of Reservoir Sedimentation in the Long Term Period Due to the Impact of Climate Change: A Case Study of Pleikrong Reservoir
Authors: Do Xuan Khanh , Nguyen Thu Hien , Ngo Le An , Felix Micah Lourdes , Jung Kwansue ,   Faculty of Water Resources Engineering, Thuyloi University  175 Tay Son Street, Dong Da District, Hanoi, Vietnam,   Chungnam National University, Daejeon, Korea
Published: May 2022

Reservoirs are essential structures to provide reliable water supply, hydropower, and flood control. Climate change could be a significant factor that increases the sediment yield leading to rapid reduction of the reservoir’s storage capacity and design life. Previous studies of reservoir sedimentation-related impact of climate change often coupled a hydrological model with the raw outputs of general circulation model (GCM)/regional circulation model (RCM), which shows bias when comparing with observations data. This study aims to integrate the soil and water assessment tool (SWAT) model with 14 bias-corrected GCM/RCM models under two emissions scenarios, representative concentration pathway (RCP) 4.5 and 8.5, applied to Pleikrong reservoir to estimate its sedimentation in the long term period. The results show the reduction in reservoir storage capacity due to sedimentation ranges from 25% to 62% by 2050, depending on the defferent climate change models. The reservoir reduced storage volume’s rate in considering the impact of climate change is much faster than in the case of no climate change. The outcomes of this study will be helpful for a sustainable and climate-resilient plan of sediment management for the Pleikrong reservoir.
A novel load shedding methodology to mitigate voltage instability in power system
Authors: Chappa H. , Thakur T.
Published: May 2022

Aim. A novel technique for detecting imminent voltage instability is proposed in this paper, accompanied by a novel load shedding approach to protect the system from voltage instability. Methodology. The proposed methodology utilizes the computation of nodal reactive power loss to voltage sensitivities with load increments in the system. Originality. The nodal reactive power loss to voltage sensitivity is a novel computation and is explored to detect the likelihood of voltage instability in this work. Results. If the system is experiencing an unprecedented load growth and if all the measures reach their limits, then load shedding is the last resort to safeguard the system against instability. The sudden change in nodal reactive power loss to voltage sensitivities is utilized to devise the quantity of load to be cut in the system. Practical value. The time-based simulations performed in New England 39 bus test system (NE-39 bus), the simulated results show that nodal reactive power loss to voltage sensitivities can be used as a trusted indicator for early diagnosing of menacing voltage instability and the timely implementation of load shedding developed from nodal reactive power loss to voltage sensitivities on the system ensures voltage stability.
EVALUATION OF VAT COLLECTION ON TRADING THROUGH ELECTRONIC SYSTEM
Authors:   Universitas Indonesia, Kusumabangsa Gilang
Published: May 2022

This research aims to evaluate the Value-added Tax (VAT) collection on trading through the electronic system (TTES) from the TTES VAT Collector’s perception, based on "The Four Maxims" tax collection principle. This research uses a qualitative research method with a case study approach. Data was collected using interview techniques with eight respondents from TTES VAT Collectors. The results showed that TTES VAT collection in Indonesia has fulfilled the equality, convenience and efficiency principles based on "The Four Maxims". However, the collection of TTES VAT in Indonesia has failed to meet the criterion of certainty, owing to uncertainties in the definition, the legal status of the collector, the method for calculating the tax basis, tax procedures, and the enforcement of fines.
Looking through the Lens of Bourdieu: A Corpus-based Study of English Romance Fiction Translation Concerning the Translation Strategies of CSIs
Authors: Mohammadpour Fahime , Shahnazari Mohammadtaghi , Afrouz Mahmoud
Published: May 2022

Translatorial habitus is a key term incorporated Bourdieusian sociological concept of habitus and Translation Studies’ translation norms. In light of Bourdieu’s theoretical model of sociology, this study sought to address the translatorial behaviour of the Iranian translators of English romance novels in terms of the translation strategies of Culture-Specific Items (CSIs) before and after the Cultural Revolution of 1980 in Iran. 4282 sentences containing CSIs were obtained from Rebecca, Sense and Sensibility, the Great Gatsby, and their two Persian translations. Based on how each CSI was translated, they were grouped under one of Liang's proposed categorization. The frequency and percentages of each procedure were calculated using SPSS software. Moreover, the results were cross-checked with a qualitative analysis of some archived interviews printed in Motarjem [the translator] journal, newspapers, and WebPages. The evidence from this study suggests that there was a clear foreignizing trend among Iranian translators of the English romance novels when translating CSIs not only in the Pre-Cultural Revolution era but also in the Post-Cultural Revolution era. Also, a significant difference between various strategies utilized in the two eras was detected.
Estimation of the Size and Type of Porosity in an Albian Carbonate Reservoir of the Campos Basin, Southeastern Brazil
Authors: Carrasquilla A.G. , de Abreu C.
Published: May 2022

—The Albian carbonates of the Quissama Formation in the Campos Basin, southeastern Brazil, are important oil reservoirs. They make part of a carbonate platform that formed along the eastern coast of Brazil and the western coast of Africa during the Albian, which resulted in the opening of the South Atlantic Ocean. Subsequently, this reservoir was subjected to different postdepositional diagenetic processes. The present study utilized geophysical well logs to estimate the porosity of this reservoir, based on density, neutron porosity, and sonic logs. The estimates do not show good results when compared with the laboratory measurements. Then, exploring the fact that these logs are obtained with different physical principles, a multiple linear regression and an artificial neural network with Bayesian stochastic approach were applied, which resulted in a better porosity estimate. As porosity is a petrophysical parameter considered significant in the characterization of reservoirs, it was used, hereafter, to estimate permeability and water saturation of the reservoir, applying empirical equations. From there, it was not enough just to estimate the porosity, but was necessary to know what type it is. For this purpose, the concepts of the electrical formation factor, cementation coefficient, tortuosity, and anisotropy were used. With them, the zones with primary intergranular and interparticle porosity as well as secondary porosity, such as fractures, fissures, and vugs, were mapped. It was concluded that, with studies of this type, it is also possible to identify the connected and nonconnected porosities, which permits estimation of the effective porosity along the well.
Guest Editorial: Oilfield Life After the COVID-19 Crash—Part II
Authors: Blue Duncan
Published: May 2022

In May 2020, I wrote an article for JPT that tried to make sense of what was happening to the oil and gas industry. Remember, this was after the discovery of the pandemic that shut down the world’s economy for many months. Factories and businesses went dark. Roads were empty. People were hunkering down, not knowing or understanding how bad this virus was.

All of this meant that demand for hydrocarbons came to a screeching halt. I had just listened to the earnings calls from Halliburton, Schlumberger, and Baker Hughes, and the outlook was doom and gloom—every executive was trying to reduce spending by millions of dollars.

This came to the detriment of scores of employees and especially those within technology departments—many of which were shuttered.

I said at the time that the industry should be satisfied with whatever technology was available because it would be several years before we would see any new technology. So, how did I do in my prediction?

I will let you judge, but I think we have seen examples of spin being put on what amounts to normal work. Any advancements are mostly cosmetic, with no real, new groundbreaking developments. Now that 2 years have passed and we are cautiously looking around the corner at the world opening up, what do we have to look forward to?

Once again, I listened to the first-quarter earnings calls from the “big three” oilfield services (OFS) companies. The outlook was much more optimistic, and we heard some of the new slants on those calls.

When I wrote the original article in 2020, the letters “ESG” were seldom mentioned in conversation, and especially not on earnings calls. Now, the OFS companies are all about what they are doing to seduce those ESG investors.

Why are they worried? Because all the “traditional” big money that once went into the old-fashioned oil and gas sector is now being swayed by this “new” concept of ESG, which is simply the criteria around environmental, social, and governance practices in any company.
Subsurface Characterization, Monitoring Play Role in Development of Gas-Storage Facilities
Authors: Carpenter Chris
Published: May 2022

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 204787, “The Importance of Subsurface Characterization and Monitoring During Development and Operation of Underground Gas-Storage Facilities,” by Romain Guises, Emmanuel Auger, and Sanjeev Bordoloi, SPE, Baker Hughes, et al. The paper has not been peer reviewed.

The complete paper describes an integrated subsurface characterization and monitoring approach not only for the construction of underground gas storage (UGS) but also for safe and efficient operation over many decades. Close integration of subsurface understanding with optimization of surface facilities is a critical factor in ensuring optimal UGS performance and deliverability. Another important task of the final phase of UGS facilities design involves enablement of sustainable operation through an asset-integrity-management plan.

Importance of Integrated Subsurface Characterization and Monitoring

The work flows developed to aid integrated subsurface characterization and monitoring play a critical role. These work flows can be grouped as follows:

- Capacity (the potential of the storage site to ensure optimal working capacity)

- Deliverability (the ability of the wells and associated infrastructure to ensure the delivery of the gas from the surface into the reservoir and vice versa)

- Integrity (including reservoir and well integrity with overall asset safety and surface infrastructures)

The element that connects these work flows and ensures collaboration between different work groups and technical disciplines is the 4D dynamic geomechanical model.
Footing the Bill: Fair finance for loss and damage in an era of escalating climate impacts
Authors: Carty Tracy , Walsh Lyndsay
Published: May 2022

The world has entered a new and dangerous era of climate change impacts, causing huge loss and damage and driving up inequality in the world’s poorest countries and communities that have contributed least to the climate crisis. New research by Oxfam estimates that funding requirements for UN humanitarian appeals linked to extreme weather are eight times higher than they were 20 years ago, and over the past five years nearly half of appeal requirements have gone unmet. Funding for emergency humanitarian response is piecemeal and painfully inadequate, as is broader support to address loss and damage such as rebuilding homes and vital infrastructure. Scaled-up financial support from governments, corporations and individuals most responsible for causing the climate crisis, and most able to pay, is an immediate necessity. A new finance facility must be created to help ensure that finance to address loss and damage is accessible and sustained, is additional to adaptation, mitigation and ODA commitments, and is delivered in accordance with the principles of climate justice.
Potential inhibitors for blocking the interaction of the coronavirus SARS-CoV-2 spike protein and its host cell receptor ACE2
Authors: Li Changzhi , Zhou Hongjuan , Guo Lingling , Xie Dehuan , He Huiping , Zhang Hong , Liu Yixiu , Peng Lixia , Zheng Lisheng , Lu Wenhua , Mei Yan , Liu Zhijie , Huang Jie , Wang Mingdian , Shu Ditian , Ding Liuyan , Lang Yanhong , Luo Feifei , Wang Jing , Huang Bijun , Huang Peng , Gao Song , Chen Jindong , Qian Chao-Nan
Published: May 2022

Background
The outbreak of SARS-CoV-2 continues to pose a serious threat to human health and social. The ongoing pandemic of COVID-19 caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has made a serious threat to public health and economic stability worldwide. Given the urgency of the situation, researchers are attempting to repurpose existing drugs for treating COVID-19.
Methods
We first established an anti-coronavirus drug screening platform based on the Homogeneous Time Resolved Fluorescence (HTRF) technology and the interaction between the coronavirus S protein and its host receptor ACE2. Two compound libraries of 2,864 molecules were screened with this platform. Selected candidate compounds were validated by SARS-CoV-2_S pseudotyped lentivirus and ACE2-overexpressing cell system. Molecular docking was used to analyze the interaction between S-protein and compounds.
Results
We identified three potential anti-coronavirus compounds: tannic acid (TA), TS-1276 (anthraquinone), and TS-984 (9-Methoxycanthin-6-one). Our in vitro validation experiments indicated that TS-984 strongly inhibits the interaction of the coronavirus S-protein and the human cell ACE2 receptor. Additionally, tannic acid showed moderate inhibitory effect on the interaction of S-protein and ACE2.
Conclusion
This platform is a rapid, sensitive, specific, and high throughput system, and available for screening large compound libraries. TS-984 is a potent blocker of the interaction between the S-protein and ACE2, which might have the potential to be developed into an effective anti-coronavirus drug.
Protect peanut kernels from Aspergillus spp and their mycotoxins during storage by aqueous extract of carob pulp
Authors: El-Desouky Tarek A.
Published: May 2022

Recently, the trend of many studies to replace synthetic antifungals commonly used during storage with natural antifungals; Plants extracts are one of the promising strategies for this purpose. Therefore, this study aimed to evaluate the aqueous extract of carob pulp (AECP) at 1.5, 2.5, and 5mg/ml on the growth of some toxigenic Aspergillus species, and its effectiveness as antimycotoxigenic (aflatoxins and ochratoxin A) during storage red peanut kernels (RPKs) for 90 days. AECP at 5 mg/ml affected inhibition growth, as Aspergillus ochraceus was the most affected, then A. aflatoxiformans recorded (15.7 ± 0.4) and (13.4 ± 0.5), respectively. Whereas study influence of AECP on the accumulation of total AFs and OTA produced by A. parasiticus and A. ochraceus during the storage of RPKs for 90 days. The results reflected that the active compounds in the AECP can protect RPKs for 45 days without detecting any amounts of total AFs and OTA at 5mg/ml. While after 90 days, the percentages of inhibition for the four types (AFB1, AFG1, AFB2, AFG2) and OTA after storage for 90 days compared with positive control samples (85.1, 76.5, 86.5,84.2, and 87.5%), respectively. Finally, AFB1 recorded the lowest inhibition percentages with all treatments; on the contrary, it was OTA.
Pesticide reduction: Technical preference and influencing factors of rice farmers in China
Authors: Liu Di , Huang Yanzhong , Luo Xiaofeng
Published: May 2022

Based on the successful experience of pesticide reduction in China. This study uses survey data from Hubei Province to measure farmers’ preferences for pesticide reduction technologies considering their needs, and compare the heterogeneous factors influencing farmers’ adoption decisions. The results show that larger-scale farmers prefer drone services and efficient machinery, while smaller-scale farmers prefer scientific standards and biopesticides for pesticide reduction. Second, farmers’ adoption behavior of pesticide reduction technologies is mostly influenced by education, risk attitude, income, agricultural labor, scale, rice price, residue testing, brand, training, subsidy, and demonstration. Among them, education, risk attitude, scale, rice price, cost, and training significantly affect farmers’ adoption level of multiple pesticide reduction technologies. Further, higher rice prices and participation in training could promote the use of pesticide reduction technologies on a larger area by farmers. Therefore, the real needs of farmers should be focused on the promotion of pesticide reduction technologies. And pesticide reduction programs in different regions should carry out precise intervention policies. These findings can provide practical policy guidance for effective pesticide reduction in developing countries.
Analysis of Operations Research Methods for Decision Problems Solution in the Industrial Symbiosis: A Literature Review
Authors: Yazıcı Emre , Alakaş Hacı Mehmet , Eren Tamer
Published: May 2022

Industrial symbiosis (IS) is an approach that aims to use resources efficiently by cooperating between independent enterprises in raw materials, energy, and similar sectors. As a result of cooperation, businesses gain economic, environmental, and social benefits. Especially in recent years, IS applications have become widespread due to the problems experienced in the supply of resources. The presence of more than one enterprise in cooperation creates a complex network structure in IS applications. In this complex system, many decision problems are encountered in the establishment and effective maintenance of the industrial symbiosis network. Operations research techniques are at the forefront of the methods used in the solution of decision problems. In this study, studies using operations research techniques in the industrial symbiosis were examined. Studies were divided into four classes according to the methods they used: mathematical modeling, heuristic methods, multi-criteria decision making, and simulation. In the literature review, the studies in the Web of Science (WOS) database are systematically presented by scanning with the determined keywords. As a result of the study, it was analyzed which method was preferred and where the methods could be applied in industrial symbiosis.