bluuebunny/crossref_metadata_2025 huggingface dataset:
The implementation of the reporting radiographer role in Saudi Arabia to facilitate the reporting service: a plan for change
Authors: Alsahli Fahad
Published: May 2023

The reporting radiographer role was initially developed to support the more timely provision of imaging reports to optimize the diagnosis and management of diseases and conditions and to protect patient safety by minimizing the risk of adverse events associated with delays in treatment. There have been reported deficiencies in timely image interpretation in Saudi Arabia, primarily due to insufficient numbers of trained radiologists and other image interpretation specialists, which may negatively affect patient care. The present review aimed at providing the background rationale for an area of practice change in Saudi Arabia, which is the implementation of a reporting radiographer role. An electronic literature search was conducted from 2005 to 2021 on the MEDLINE database for relevant research discovered using keywords such as Implementation, Reporting, Radiographer, Role, reporting service, and Saudi Arabia. On Google Scholar, similar keywords were used to search for and discover comparable papers. The articles were picked using specific inclusion criteria. The studies in this review were published between 2002 and 2022. This work has provided an overview of the evidence base about the utility of reporting radiographers as a rationale for the discussed change process - to implement a reporting radiographer role in Saudi Arabian hospitals. Several change management considerations have been discussed to affect this process, including the internal and external drivers of change, stakeholder and force field analysis, and Strengths, Weaknesses, Opportunities, and Threats, supported by Lewin's change model and the National Health Service Sustainability model. Finally, the reflective component identified the key learning points for planning and implementing change, which will be used in the authors' future practice to support other change initiatives.
A Comparison Study the Effect of Doping by Ga2O3 and CeO2 On the Structural and Optical Properties of SnO2 Thin Films
Authors: Abood Maab A. , Hasan Bushra A.
Published: May 2023

This research deals with the effect of gallium oxide and cerium oxide as dopants on the structural and optical characteristics of tin oxide. Gallium and cerium oxide doped tin oxide was prepared with different doping concentrations (0, 0.03, 0.05 and 0.07) wt. pure and doped tin oxide thin films were prepared by the pulsed laser deposition technique. X-ray diffraction and UV-Visible spectrophotometer were employed to investigate both oxides doping effects. Results showed that all prepared samples have poly-crystalline structure with a preferred plane of crystal growth along (110), where the crystal size grew from 40.3 nm to 64.5 nm and to 43.5 nm for Ga2O3 and CeO2 doped tin oxide thin films, respectively. Transmittance decreased drastically by increasing the doping ratio of gallium oxide. In contrast, it increased by increasing the doping ratio of cerium oxide. The optical energy gap was found to change in nonsystematic sequence with the increase of Ga2O3 doping concentration, while it decreased monotonically by increasing the CeO2 doping concentration.
Role of Extracted Nano-metal Oxides From Factory Wastes In Medical Applications
Authors: Ghdeeb Nadia Jasim , AbdulMajeed Aseel Mustafa , Mohammed Asma Hadi
Published: May 2023

Nanometal oxides were extracted from cement factories wastes and were employed to proliferate skin cancer cells using MTT (Methyl Thiazolyl Tetraolium) assay. MTT assay results for skin cancer cell line A375,for CaO NPs the best concentration was 200 μg/mL,The viability was reduced to 57.28% while the IC50 was (69.66) g/mL for A375 and normal cell WRL68 was significantly higher (231.2 g/mL). The cytotoxicity results of CaO: MgO: Fe2O3 NPs, at higher concentrations (200 and 400) μg/mL showed a significant difference. The IC50 was (106.4) μg/mL for A375and normal cell WRL68 was significantly higher (173.3) μg/ml CaO:MgO:Fe2O3 NPs. The nanometal oxides, calcium oxide (CaO) and the mixture (CaO:MgO: Fe2O3) were extracted from wastes of cement factory, and then they were oxidized at a temperature of 400C° for (5) hours. The structural and surface properties of the prepared oxides were characterized by X-ray diffraction patterns,FE-SEM and FTIR. The X-ray data reflected that all the oxides have a polycrystalline cubic structure, with a preferred orientation along (111) for calcium oxide, with a preferred orientation along (002) for calcium oxide: magnesium oxide: iron oxide.
Antifertility Effect of Polyaniline with Iron α-Fe2O3 on Epididymal Sperm of Mice
Authors: Mohamed Nather Ibraheem , Hassan Salma M. , Khalil Khaleed J.
Published: May 2023

Chemical polymerization produces polyaniline in two concentrations (0.02,0.05g) at room temperature. The reaction of polymerization was exothermal in nature. The characterization peak was observed in the FTIR range between 1470 and 1560cm-1which defined benzenoid and quinoid ring. To find out the effects Fe2O3, this investigation was carried out with two weights of Fe2O3 (0.05 and 0.02 g). In the experiment part, 32 mice were separated into eight groups, as indicated. The experiment lasted for 35 days. The results showed a significant (P < 0.05) decrease in sperm motility, concentration, percentage of live sperm and testosterone concentration with a significant (P < 0.05) increase in the percentage of abnormal sperm in group treated with PANI-Fe2O3-Cys without magnetic field in comparison with control group. The results also showed a significant (P < 0.05) increase in sperm motility, Relative sperm count of live sperm and testosterone concentration, with a significant (P < 0.05) decrease in the percentage of abnormal sperm in group treated with PANI-Cys and PANI-Fe2O3-Cys exposed to magnetic field in comparison with the samples without magnetic field. The group treated with PANI alone showed an improvement in all parameters studied except the percentage of abnormal sperms which showed a significant (P < 0.05) decrease. Using the alternating magnetic field, it was found that it has a obvious effect on the work of the material PANI- Fe2O3-Cys and PAN-Cys. Thus, it affects sperm motility
Synthesis and Investigation of the Structural Characteristics of Zinc Oxide Nanoparticles Produced by an Atmospheric Plasma Jet
Authors: Aadim Kadhim A. , Abbas Ibrahim K.
Published: May 2023

In this paper, ZnO NPs were prepared using D.C high-voltage and high frequency with an output of 6 kHz at two different preparation times preparation (10,12) minutes. Transmission electron microscopy (TEM) with (FE-SEM) was used to examine the homogenous, compact, and dense surface of the zinc oxide nanoparticles created with apparent grain size determined by (XRD), XRD results explain that the increase of the preparation time from 10 minutes to 12-minute caused an increase in crystallite size. In addition, FE-SEM showed that the increase in the ZnO NPs cluster distribution with particle size increases with increasing the preparation time. AFM was also utilized to determine the degree of cooperation between the surfaces of the zinc oxide nanoparticles, with having a high degree of stability by zeta potential -13.3±1.8mV at 12 minutes.
Natural radioactivity Measurements of Dur-Kurigalzu's Ziggurat, Baghdad Governorate-Iraq using HPGe detector
Authors: Hassan Saja Faez , Alaway Iman Tarik
Published: May 2023

Measurement of 238U, 233Th and 40K concentrations in soil samples collected from Ziggurat of Dur-Kurigalzu west region of Baghdad, have been evaluated, using high purity germanium detector. The activity concentrations of 238U, 233Th and 40K varied from 16.040  to 26.620 , 14.510  to 31.480 , and 153.820  to 266.320  with average values of 20.604±2.9 , 24.534±3.3 , 212.22±25.1 , respectively. The importance of these measurements lies in the estimation of radiation risk, radium equivalent, absorbed dose, annual effective dose, risk indices, gamma index, and cancer risk. The average value of the absorbed dose ranged from 33.187  outdoors to 63.111  indoors. The mean annual effective dose value was estimated to be 0.043  outdoors and 0.310  indoors from the study area. The total calculated lifetime risk of cancer ranged from 0.991×10-3 to 1.485×10-3, while the indoor lifetime cancer risk exceeded the recommended limit in samples 6, 8, 9, and 10.  The areas examined in this study showed radioactive contamination less than the internationally permissible limits for the sites inhabited by the population.
Assessment of the Body Radioactivity of I-131 Using Two Techniques
Authors: Al-Musawi Thaer Laftah
Published: May 2023

Iodine-131 has become an essential radionuclide used in nuclear medicine for clinical and research purposes. The increase use of this radionuclide in medicine for diagnostic and treatment of thyroid diseases creates a demand to obtain a feasible methodology for occupational or accidental monitoring of internal contamination. In this study, two techniques were employed to find an appropriate one of in vivo bioassay for evaluating Iodine-131 body content. A scanning Whole Body Counter (WBC) equipped with 6NaI (Tl) scintillation detector, an anthropomorphic phantom and point source were used. The results showed that the counter sensitivity, as a first approach (conventional method), had a logarithmic and significant correlation with neck weight. On the other hand, the counting rate in the Compton band was considered, which is a measure of gamma ray attenuation, and found to have a direct relationship with body weight. The new technique, which is considered the variation of the counter sensitivity with the Compton to photopeak counting rate ratio, had the same regression but less uncertainty than the conventional approach. Finally, the theoretical MDA with neck weight was calculated for all the phantom configurations.
Green Synthesis of Iron Oxide Nanoparticles and Their Modification with CTAB for the Decolorization of Dye Reactive Blue 238
Authors: Al- Rubai Hasan Fadhil , Al-dahan Atyaf Khalid Hameed , Jasim Ban A.
Published: May 2023

Magnetized iron oxide nanoparticles (NPs) were prepared using Eucalyptus leaf extract and then coated with CTAB (Cetrimonium bromide) to increase efficiency. The prepared and modified (NPs) were characterized using AFM, FTIR, and X-ray techniques. The adsorption of the dye reactive blue RB 238 on coated (NPs) was investigated. The effect of various experimental factors, such as the initial concentration of the dye, the amount of adsorbent, pH and temperature on the removal of RB238 was studied. The best conditions for dye removal were found to be 298 K in an acidic medium of pH = 3 and an appropriate dose of the adsorbent of 0.15 g per 25 mg/L to achieve the best color removal of 90% within 60 minutes. The pseudo-second-order reaction model gave results more suitable for experimental facts than the pseudo-first-order reaction model.
Calculating Groundwater Recharge Using Water Balance in Mandaly City, Diyala Governorate, Eastern Iraq
Authors: Al-Mashhadani Reham Basim , Al-Kubaisi Qusai Y.
Published: May 2023

Water balance approaches are strategies for resolving key theoretical and practical hydrological issues. The major goals of this study are to examine climatic elements and conditions to calculate groundwater recharge using the water balance approach. The study area is located in Mandaly city, Diyala Governorate, eastern Iraq. The metrological data was gathered between 1994 and 2020 to evaluate the study area's climate. The annual rainfall rate has been 248.61 mm, with a relative humidity of 43.89%, a temperature of 24.41 oC, a wind speed of 1.99 m/sec, sunshine of 8.32 hours per day, and evaporation of (268.09 mm). The total amount of corrected evapotranspiration was 1010.09 mm, with a peak value of 225.29 mm in July and the lowest value of 3.91 mm in January. the climate was classified into arid and sub-arid. The water surplus (WS) has been calculated to be 149.52 mm and 60.14 % annual rainfall. The surface runoff is 24.86mm, and the groundwater recharge value is 124.66 mm with a rate of 50.14 %. This shows the percentage of groundwater recharge from total rainfall.
Petrophysical Properties and Reservoir Assessment of Mishrif Formation in Eridu oil field, Southern Iraq
Authors: Al-Mashhdani Mohammed A. Jawad , Al-Zaidy Aiad Ali Hussien
Published: May 2023

This study is achieved in the local area of the Eridu oil field, where the Mishrif Formation is considered the main productive reservoir. The Mishrif Formation was deposited during the Cretaceous period in the secondary sedimentary cycle (Cenomanian-Early Turonian as a part of the Wasia Group, a carbonate succession widespread throughout the Arabian Plate.
     The Mishrif Formation already have been evaluated in terms of depositional environments and their diagenetic processes. Here, it will test the previous conclusions with petrophysical properties delineated by using well logging. The results show there is a fully matching with two reservoir units (MA and MB). Dissolution and primary porosity are responsible for forming a variety of large porosity types. These porosity types have preserved the hydrocarbons in commercial quantities. MA and MB reservoir units show low gamma ray and high to moderate total and effective porosities values. The water saturation Sw in the upper unit (MA) is very high in generally to become water-bearing zone. This appears in all studied wells except in the E-NE part, characterized by patches area of moderate water saturation. In contrast, the lower unit (MB) is characterized by high values of hydrocarbon saturation (Sh) except for some areas in the middle of the studied field.
      Cap rocks (CR1 and CR2) represents rock unit with low porosity and permeability due to the main components of these units. It contains lime mudstone with log response of this cap rocks indicates high gamma-ray peak value. Compaction and dolomitization are responsible for low porosity and permeability in this type of rock unit.
Semi-Essentially Compressible Modules and Semi-Essentially Retractable Modules
Authors: Al Hakeem Mohammed Baqer Hashim , Al-Mothafar Nuhad Salim
Published: May 2023

Let  be a commutative ring with 1 and  be a left unitary . In this paper, the generalizations for the notions of compressible module and  retractable module are given.
An   is termed to be  semi-essentially compressible if   can be embedded in every of a non-zero semi-essential submodules. An  is termed a semi-essentially retractable module, if   for every non-zero semi-essentially submodule of an . Some of their advantages characterizations and examples are given.  We also study the relation between these classes and some other classes of modules.
The Impact of Fear and Prey Refuge on the Dynamics of the Food Web Involving Scavenger
Authors: Abdulsatar Huda
Published: May 2023

In this paper, the effects of prey’s fear on the dynamics of the prey, predator, and scavenger system incorporating a prey refuge with the linear type of functional response were studied theoretically as well as numerically approach. The local and global stabilities of all possible equilibrium points are investigated. The persistence conditions of the model are established. the local bifurcation analysis around the equilibrium points, as well as the Hopf bifurcation near the positive equilibrium point, are discussed and analyzed. Finally, numerical simulations are carried out, and the obtained trajectories are drowned using the application of Matlab version (6) to explain our found analytical result.
Detection of COVID-19 in X-Rays by Convolutional Neural Networks
Authors: Kadhim Ola N. , Najjar Fallah H. , Khudhair Kifah T.
Published: May 2023

Coronavirus is considered the first virus to sweep the world in the twenty-first century, it appeared by the end of 2019. It started in the Chinese city of Wuhan and began to spread in different regions around the world too quickly and uncontrollable due to the lack of medical examinations and their inefficiency. So, the process of detecting the disease needs an accurate and quickly detection techniques and tools. The X-Ray images are good and quick in diagnosing the disease, but an automatic and accurate diagnosis is needed. Therefore, this paper presents an automated methodology based on deep learning in diagnosing COVID-19. In this paper, the proposed system is using a convolutional neural network, which is considered one of the mostly prominent techniques used today for its reliability and ability to generate rapid results. The system was trained on a set of X-Ray images taken of the chest area of infected and uninfected people. The CNN structure gave accuracy, Precision, Recall and F-Measure 98%. This model is characterized by its ability to distinguish efficiently and adapt to different cases.
An Evolutionary Algorithm with Gene Ontology-Aware Crossover Operator for Protein Complex Detection
Authors: Abdulateef Isra H. , Alzubaydi Dhia A. , Attea Bara'a Ali
Published: May 2023

Evolutionary algorithms (EAs), as global search methods, are proved to be more robust than their counterpart local heuristics for detecting protein complexes in protein-protein interaction (PPI) networks. Typically, the source of robustness of these EAs comes from their components and parameters. These components are solution representation, selection, crossover, and mutation. Unfortunately, almost all EA based complex detection methods suggested in the literature were designed with only canonical or traditional components. Further, topological structure of the protein network is the main information that is used in the design of almost all such components. The main contribution of this paper is to formulate a more robust EA with more biological consistency. For this purpose, a new crossover operator is suggested where biological information in terms of both gene semantic similarity and protein functional similarity is fed into its design. To reflect the heuristic roles of both semantic and functional similarities, this paper introduces two gene ontology (GO) aware crossover operators. These are direct annotation-aware and inherited annotation-aware crossover operators. The first strategy is handled with the direct gene ontology annotation of the proteins, while the second strategy is handled with the directed acyclic graph (DAG) of each gene ontology term in the gene product. To conduct our experiments, the proposed EAs with GO-aware crossover operators are compared against the state-of-the-art heuristic, canonical EAs with the traditional crossover operator, and GO-based EAs. Simulation results are evaluated in terms of recall, precision, and F measure at both complex level and protein level. The results prove that the new EA design encourages a more reliable treatment of exploration and exploitation and, thus, improves the detection ability for more accurate protein complex structures.
Automatic Numeral Recognition System Using Local Statistical and Geometrical Features
Authors: Kafi Shaymaa H. , Mirza Nabeel M. , Karam Ali J. , Al-Saleh Anwar , Al-Zuky Ali
Published: May 2023

Optical Character Recognition (OCR) research includes computer vision, artificial intelligence, and pattern recognition. Character recognition has garnered a lot of attention in the last decade due to its broad variety of uses and applications, including multiple-choice test data, business documents (e.g., ID cards, bank notes, passports, etc.), and automatic number plate recognition. This paper introduces an automatic recognition system for printed numerals. The automatic reading system is based on extracting local statistical and geometrical features from the text image. Those features are represented by eight vectors extracted from each digit. Two of these features are local statistical (A, A th), and six are local geometrical (P1, P2, P3, P4, P5, and P6). Thus, the database created consists of 1120 statistical and geometrical features. For the purpose of recognition, the features of the test image are compared with the features of all the images saved in the database depending on the value of the Minimum Distance (MD). All digits (0–9) were identified with 100% accuracy. The average computational time required to recognize a numeral at any font size is 0.06879 seconds.
Review Study of E-Voting System Based on Smart Contracts Using Blockchain Technology
Authors: Jumaa Maral Hassan , Shakir Ahmed Chalak
Published: May 2023

Voting is an important procedure in democratic societies in different countries, including Iraq. Electronic voting (E-voting) is becoming more prevalent due to reducing administrative costs and burdens. E-voting systems have many restrictions that affect the electoral process. For example, fraud, tampering with ballot boxes, taking many hours to announce results, and the difficulty of reaching polling stations. Over the last decade, blockchain and smart contract technologies have gained widespread adoption in various sectors, such as cryptocurrencies, finance, banking, and most notably in e-voting systems. If utilized properly, the developer demonstrates properties that are promising for their properties, such as security, privacy, transparency, and decentralization. Moreover, these technologies allow citizens to vote wherever they are via digital technology (computers, smartphones). This paper explains the nature of blockchain and smart contracts and systematically reviews several important e-voting studies. Comparative analysis is conducted on recent related papers in the last five years (published in highly ranked journals and international conferences) regarding blockchain types, frameworks, security requirements, and the implemented algorithms.
Comparison of the Structure of Spiral and Lenticular Galaxies, NGC 4305 and NGC 4203 as a Sample
Authors: Ahmed Abdullah K
Published: May 2023

Photometric techniques are one of the fundamentals and of great importance in the study of astronomical phenomena, including galaxies, and has witnessed a wide development during the last 100 years in equipment, sensitivity and accuracy in data analysis, especially after the direction toward space telescopes and the widespread use of a CCD camera. Therefore, in this research, an analytical study will be made to compare two types of galaxies, which are spiral and lenticular galaxies, using photometric techniques and compare the photometric parameters of each type with tables and illustrations. An analysis of the morphological of the two galaxies was done by using the Least Square Fitting Method, and it was fully explained in the research. The results showed the clear difference between the structure of spiral and lenticular galaxies.
The Use of Remote Sensing and GIS in Studying the Dynamics of Irrigated Space in Guercif Plain (Morocco)
Authors: El hani Lamfaddal , Bouberria Abdelouahed
Published: May 2023

The use of remote sensing and Geographic Information System (GIS) are among the most efficient modern tools to study the varied natural resources in terms of localization, identification of characteristics, and the study of its dynamics. Thus, the aim of this study is to show the importance of remote sensing and Geographical Information System in studying the Guercif irrigated plain.  We will first process and analyze satellite images using the program (Erdas IMAGINE 15. 00) and then create thematic maps illustrating the irrigated area's evolution (ArcGIS 10.8). The results revealed that since the late 20th century, the area of Guercif Plain has expanded significantly, with the total irrigated space that has been doubled many times by 2021. Significant landscape transformations accompanied this evolution, for Guercif Plain has turned from a barren and dry to a green agricultural space.
A novel Link of Serum IL-39 Levels in Patients with Rheumatoid Arthritis
Authors: Al Ghuraibawi Zahraa Adnan Ghadhban , Sharquie Inas K. , Gorial Faiq I.
Published: May 2023

Rheumatoid arthritis (RA) is an inflammatory condition causing joint pain and stiffness, with often debilitating and life-limiting consequences. Recently, a new B-cell secreted cytokine, IL-39, was identified in mice. The most up-to-date research indicates that although IL-39 is expressed in murine models of lupus and has a role in mediating the inflammatory response in this context, there is no solid, replicated evidence of the existence of IL-39 in humans. This study aimed to clarify the existence and role of IL-39 in the human body and to elucidate whether it plays a role in rheumatoid arthritis. Accordingly, serum samples were collected from 66 patients with rheumatoid arthritis who were under therapy and from 66 healthy controls attending the Baghdad Teaching Hospital Rheumatology Unit. Enzyme-linked immunosorbent assay (ELISA) was used to detect serum levels of IL-39. Our results showed that mean ages of RA patients were 46.48 ± 10.17 years, and for healthy controls 44.97 ± 11.658 years. The results revealed that serum IL-39 levels were significantly lower in RA patients (p = 0.016) (4.95 ± 1.1001) compared to healthy controls (5.55 ± 1.762). Corresponding sensitivity of IL-39 was 56.1%and specificity was 60.6% at cutoff values of ≤ 4.99 ng/ml. In Conclusion, IL-39 is found in humans but is downregulated in rheumatoid arthritis patients. This suggests either that IL-39 can have both pro- or anti-inflammatory functions based on the underlying disease or that the role of IL-39 is masked by the effects of treatment.
Representasi Teman Tuli dalam Iklan Pond’s Bright Beauty Serum "Wajahmukekuatanmu"
Authors: Putri Rahmawati , Turistiati Ade Tuti , Setyanugraha R. Satria
Published: May 2023

Perkembangan sektor periklanan membuat penayangan iklan semakin kreatif dan beragam. Iklan dikemas dengan baik sehingga iklan dapat menghasilkan brand awareness.  Produk iklan pun berada pada top of mind masyarakat. Pemeran iklan pada produk kecantikan umumnya adalah artis atau orang-orang terkenal yang memiliki kecantikan atau rupawan sehingga menarik perhatian. Namun, produk iklan kecantikan salah satunya iklan Pond’s Bright Beauty Serum menggunakan Teman Tuli sebagai model. Penelitian ini bertujuan untuk mengetahui, menganalisis dan menjelaskan representasi Teman Tuli sebagai model iklan dengan menggunakan analisis semiotika makna pesan verbal dan non-verbal pada iklan Pond’s Bright Beauty Serum “Wajahmu Kekuatanmu”. Penelitian ini menggunakan metode kualitatif dengan analisis semiotika Charles Sanders Peirce. Hasil penelitian menunjukkan bahwa representasi Teman Tuli dalam iklan produk kecantikan, merupakan sebuah ideologi baru mengenai kecantikan. Kecantikan sesungguhnya terletak pada kemampuan untuk menguasai diri dan mengontrol emosi. Perempuan cantik juga adalah ia yang dapat menemukan makna cantiknya, menjadi diri sendiri,  memiliki kepercayaan diri, mencintai keaslian dalam diri, serta teguh dalam pendirian.
Daya Tarik Akun Instagram @Poliklitik dalam Meningkatkan Literasi Politik Mahasiswa di Bandung
Authors: Iqbal Muhammad Khairul , Purwaningwulan Melly Maulin
Published: May 2023

Tujuan penelitian ini untuk mendeskripsikan bagaimana daya tarik Akun Instagram @Poliklitik dalam meningkatkan literasi politik mahasiswa di Bandung. Peneliti memunculkan pengelolaan konten (Akun Instagram @Poliklitik), isi konten, dan hambatan. Penelitian ini menggunakan metode penelitian kualitatif dengan studi deskriptif. Teknik pengumpulan data dilakukan melalui wawancara mendalam dan observasi nonpartisipan. Teknik purposive sampling digunakan untuk memperoleh delapan informan, terdiri dari satu informan kunci dan tujuh informan pendukung. Uji keabsahan data menggunakan triangulasi sumber. Analisis data menggunakan reduksi data, sajian data, dan penarikan kesimpulan. Hasil penelitian, pengelolaan konten Akun Instagram @Poliklitik meliputi tiga tahap proses, yaitu produksi konten, pendistribusian konten, dan evaluasi konten. Isi konten akun Instagram @Poliklitik dalam meningkatkan literasi politik Mahasiswa Bandung memiliki dua aspek daya tarik, yakni pengemasan konten secara kreatif dan humor, serta pemilihan isu politik yang sedang ramai dibicarakan masyarakat. Hambatan psikologis terjadi ketika mengintrepetasikan konten akun instagram @Poliklitik; Hambatan mekanis yaitu pada saat Instagram mengalami “down” sehingga proses pengiriman dan penerimaan pesan melalui Instagram terhambat. Kesimpulan penelitian: akun Instagram @Poliklitik memiliki daya tarik bagi mahasiswa Bandung dan mampu mendorong keinginan menelusuri informasi lebih lanjut terkait konten yang diunggah serta membagi isu yang ada pada konten Akun Instagram @Poliklitik.
Evaluation of Future Battery Electric Vehicles as an Environmentally Friendly Transportation Means: A Review
Authors: Matalata Hendi , Syafii Syafii , Hamid Muhammad Imran
Published: May 2023

The climate challenge is an energy challenge. thus, policymakers around the world are trying to accelerate the adoption of clean energy technologies. The Global Energy Review said that global CO2 emissions from energy combustion in 2021 reached the highest annual level with an increase of 6% from 2020, The automotive sector is very important to achieve net zero global emissions by 2050 based on the agreement with the world in the Scenario Net Zero Emissions by 2050. in which in 2035 sales of internal combustion engine cars (ICE) will be stopped. In this case, of course, electric vehicles are an alternative to the field of future land transportation that uses batteries as fuel that utilizes renewable energy as a charger for electric vehicles. Electric vehicle charging infrastructure (EVCI) is a key driver of increased electrification mobility shifting away from internal combustion engines given that the specific geographical distribution of a region and its demographics are factors influencing the adoption of electric vehicles. This paper was written to review the state-of-the-art of Battery Electric Vehicle (BEV), a PV energy source in terms of renewable energy utilization, energy generation, batteries, and charging stations. PV generation is extensively reviewed, and although this research is quite extensive, some gaps need to be investigated for further research on commercial and residential aspects as a means of operating batteries for electric vehicle charging stations based on PV and BESS (Battery Energy Storage System). Regulations on the use of battery electric vehicles as an environmentally friendly means of transportation will grow based on government policies from each country
Data Acquisition System of Temperature Measurement Using LabVIEW Application
Authors: Mohapatra Badri Narayan , Barwade Neilsinh , Walse Ayush , Patil Dhairyashil
Published: May 2023

Data Acquisition (DAQ) is widely used in Research and Development, Quality Control, Testing. Data acquisition (DAQ) is a process in which raw transducer signals are converted to computer readable data so that computers can store and manipulate that data. Temperature control system mainly the measuring and even to achieve stable or desired value have big challenge and importance in all sector of industry.  This article tries to summarize the recent advancements in data acquisition technology and also explains the utility of LabVIEW software in DAQ applications related to temperature measurement.
Application of the Average Based Fuzzy Time Series Model in Predictions Seeing the Use of Travo Substations
Authors: Ula Mutammimul , Satriawan Ivan , Fhonna Rizky Putra , Hasibuan Arnawan
Published: May 2023

PT PLN expects the delivery of information quickly in predicting the capacity of transformer substations in each region in view of population growth in industrial areas. Unbalanced and overloaded electricity that is not suitable for the capacity of the transformer substation so that the results of this study are more optimal in predicting the usage load at the transformer substation using the methodaverage based fuzzy time series. The application of this method can provide fast and accurate information in accordance with consumer expectations in predicting each need in each area and the number of managed substations. The capacity of the substation can be seen in 1 phase and 3 phase with the percentage of loading quickly and precisely with the current transformer card system. The purpose of the transformer distribution in this study is to look at reducing high voltage to low voltage, so that the voltage used is in accordance with the customer's electrical equipment rating or the load rating used by all consumers in each region. The research methodology is to determine the placement of distribution transformer locations that are not suitable which can affect the end voltage drop on consumers or the drop/drop in consumer line end voltage and view complete data from the specifications of the distribution transformers along with the locations of distribution transformers that can be managed through Development of a mobile device-based Distribution Transformer Recording System at PT PLN. The results of this study in transformer power 100 consumption 99.43, unbalanced 28%, fuzzification A8, FLRG G8, forecasting results 10.69 with a Mape forecast value of 0.57%. Furthermore, power consumption of transformer 50 is 36.70, unbalanced 78%, fuzzification A6, FLRG G6, forecasting results 23.91 with Mape 1.11%. Results with the smallest mape with each travo travo 50 in each usage area 28.43, unbalanced 26%, fuzzification A5, FLRG G5, forecasting results 23.91 with Mape 0.28%. The results of this study can determine the location of the transformer along with unbalance, overload and the estimated amount of power consumption load for the use of transformer substations in an area, especially the ULP PT.PLN area for each region in PT.PLN (Persero) Krueng Geukuh. Then the results of this study can be used as a reference for monitoring population growth with excessive transformer power loads (overload) so that later you can install new transformer substations with a capacity according to the number of customers
Synthesis of Fluorescent Carbon Dots (CDs) Using Laser Ablation Method for Bioimaging Application
Authors: Jumardin Jumardin , Maddu Akhiruddin , Santoso Kokoeh , Isnaeni Isnaeni
Published: May 2023

Carbon Dots (CDs) were synthesized using laser ablation by focusing the laser beam on carbon (Tea) material in colloid (CH3) for 3 hours. UV-Vis spectroscopic and fluorometric characterization showed absorption of the wavelength peaks caused by the control treatment and after laser ablation and coating using Poly Ethylene Glycol (PEG400). The excitation and emission energies are formulations of CDs absorbance wavelength and fluorescence intensity. The absorbance coefficient is obtained based on the absorbance value of the cuvette thickness. The transmittance value (T) is obtained based on the absorption coefficient multiplied by 100%. CD fluorescence wavelength based on control parameters was 489 nm. After laser ablation was 496 nm, and after coating was 511 nm. CDs morphology and size characteristics are 4 nm to 10 nm based on TEM measurements. Fluorescence analysis for bioimaging applications on the luminescence intensity value of internalized blue CDs in zebrafish eye organs. The average intensity of CDs in the eye organs, gill, intestinal, dorsal, and tail injection points was 88.15 %, 91.58 %, 92.76 %, and 0.00 %.
Property-Based Brittleness Analysis of Temporal Networks
Authors: Vaquero Tiago , Chien Steve , Agrawal Jagriti , Saint-Guillain Michael , Parmentier Maxime
Published: May 2023

A new framework is proposed to analyze the brittleness of task networks with respect to an arbitrary set of user-specified properties, such as dynamic controllability or minimum battery state of charge of a rover. The proposed algorithms allow the detection and enumeration of activities that, with modest task execution duration variation, make the success of execution no longer guaranteed in terms of the given set of properties. A metric for measuring an activity’s brittleness, defined as the degree of acceptable deviation from its nominal duration that preserves the desired user-specified properties, is introduced and how that measurement is mapped to task network structure is described. Complementary to existing work on temporal robustness analysis, which informs how likely a task network is to succeed or not under temporal controllability constraints, the new analysis and metric not only generalize robustness analysis to a set of user-defined properties (as opposed to strong or dynamic controllability, for instance), but they also go deeper to pinpoint the sources of potential brittleness. An analyzer is developed, which helps human designers and/or automated task network generators focus on and address sources of undesirable brittleness. The approach is applied in Mars rover and biomanufacturing operations scenarios.
Experiments and Modeling of the Ceiling Effect with Drone-Scale Propellers
Authors: Tang Ellande , Chung Soon-Jo
Published: May 2023

Aircraft designs involving aerodynamic interactions between rotors and other aerodynamic surfaces are becoming increasingly popular. Studying these interactions is key to developing good models for design and aspects of the system such as control. This paper seeks to understand the effect of obstructing the upstream of a propeller at varying distances, also called the ceiling effect, by examining in depth the canonical case of a theoretically infinite obstruction and its interaction with a propeller or actuator disk. Experimental studies of force and pressure are compared to results from computational fluid dynamics (CFD), and good agreement is shown. The CFD results are then compared against the Morillo flowfield model, and a correction is found to match the results. The data indicate that some propellers experienced a nearly twofold increase in thrust. However, a matching force on the surface develops, and the net force drops to nearly zero. The force interaction between the two nearly disappears once the separation exceeds half a propeller diameter. These results are independent of propeller size and pitch. The implemented theoretical model also has low computational cost, and it could be used to improve low-order models such as panel methods or provide a foundation for future rotor–body interaction modeling.
Model for Combustion Instability in Hybrid Rocket Engines Burning Liquefying Fuels
Authors: Gallo Giuseppe , Carmicino Carmine
Published: May 2023

Starting from the data measured in several static firings of two laboratory-scale hybrid rocket engines of different sizes burning gaseous oxygen with either a liquefying fuel or a pyrolyzing polymer, a mechanism for the combustion instability observed only with liquefying fuel is suggested. With the latter type of fuels, regression rate is increased for the formation of an unstable liquid layer on the grain surface, for which liquid fuel structures are entrained into the gas stream and burn, upon vaporization and mixing, far from the surface. Based on this circumstance, the hypothesis of a time delay to burn, with the resulting effect of triggering longitudinal acoustic modes of the system, is formulated. A simplified analytical acoustic model of a series of interconnected ducts with different cross sections and gas properties is preliminarily addressed, which allowed demonstrating the acoustic nature of the main pressure oscillation peaks measured in three firing tests along with the influence of the oxygen-feeding line on the system acoustics. Finally, by leveraging an existing acoustic model of the hybrid rocket combustion chamber including the effects of cross-sectional discontinuities and distributed fuel mass addition and combustion, the linear stability of the system is analyzed, whose results are apt to reproduce the experimental findings.
Tradisi Salai Jin Sebagai Modal Sosial Masyarakat Tidore Kepulauan
Authors: Boko Yusri A , Safi Jamin
Published: May 2023

The Tidore people are people who still adhere to the traditions passed down by their ancestors. One of the traditions in question is the Salai Jin ritual. Viewed from the aspect of social relations, this tradition characterizes social interaction between people. The Salai Jin ritual is basically a ritual which, according to local people's beliefs, allows communication between humans and supernatural beings with various purposes. Among the purposes of this ritual is to establish cooperation to ensure safety and health. The researcher is interested in examining (1) the values of the Salai Jin ritual as one of the social assets of the Tidore archipelago community, and (2) the meaning and internalization of the values of the Salai Jin ritual in the social life of the Tidore archipelago community. Designed as a descriptive qualitative research, data were collected through interviews, observation, and documentation. Meanwhile, triangulation is used to validate research data. After the data has been analyzed using data reduction techniques, data presentation, and drawing conclusions, this study captures several social phenomena related to the Salai Jin ritual in the Tidore Islands community, including, (1) the Salai Jin ritual contains values of togetherness, bari (mutual cooperation), empathy, and social care, and (2) the meaning of these values is to build good communication and cooperation based on the values and norms prevailing in society. The actualization of the Salai Jin ritual as social capital can be found in various mutual cooperation activities such as building houses, wedding celebrations, dina (the tradition of commemorating those who have died), and other community social activities.
Skin and soft tissue modeling and its impact on apparel modeling
Authors: McDonald Carol , Rannow Randy K , Ballester Alfredo , Schildmeyer Katy , Scott Emma , Gill Simeon
Published: May 2023

Rigid body avatars do not fully define the complex interaction between human and body-worn product (humanoid-to-coveroid).  Skin and soft tissue modeling to create more realistic 3D humanoid body models are needed. We considered if humanoid split lines relevant to pattern-engineering practice can be related to biodynamic and fold lines of the skin. Changes in skin and tissue are expected, depending on the dermis, the effects of movement, and the effects of coveroid pressure. The physiological functions of the skin may be assigned mechanical parameters for dynamic study utilizing biodynamic excisional skin tension (BEST) lines, main folding lines (MFL) with Langer’s lines. Critical to such study is the connecting of the skin to the rig (humanoid virtual skeleton). The use of stable (skeletal feature points related to both the virtual skeleton and apparel block patterns) and morphological (skin feature points identifying areas of morphological variation and dynamic study) landmarks for connecting the skin to rig was analyzed. We utilized these landmarks to drive lines as BEST, MFL and Langer’s lines for the mapping of skin deformations. Initial findings suggest the use of stable and morphological landmarks could have profoundly positive effects throughout the entire digital product creation (DPC) production pipeline and should be further explored & are important in developing standard topology practice.
Computer algebra application for the develop ed of the sp ectral mo dels of kinematic axisymmetric dynamo
Authors: Водинчар Г.М. , Фещенко Л.К.
Published: May 2023

Описана автоматизированная технология составления одного класса спектральных моделей динамо с помощью систем компьютерной алгебры. Построение таких моделей сводится к расчету мод, являющихся решениями спектральных задач на собственные моды свободного затухания, и коэффициентов Галёркина. Предложенная технология позволяет быстро и безошибочно выявлять цепочки взаимодействующих мод, что очень важно при построении маломодовых моделей. Подробно описан расчет собственных торо- и полоидальных мод свободного затухания магнитного поля с вакуумными граничными условиями и коэффициентов Галёркина для задачи осесимметричного кинематического динамо в сферической оболочке с использованием численно-аналитических возможностей систем компьютерной алгебры.

In sp ectral mo dels of dynamo systems, solutions are represented as linear combinations of a finite numb er of stationary basis fields (mo des). The mo des themselves are the solution to some sp ectral problems. From the physical p oint of view the most natural are the mo des consisting of oscillations, which could b e free or damping. To develop ed a mo del, it is necessary to determine the mo des parameters and eigenvalues and then calculate the Galerkin co efficients. The purp ose of the pap er is to develop a computing technology for automating these calculations. The technology is based on computer algebra metho ds. The Galerkin co efficients are integrals of very complex expressions. Therefore, correct determination of the integrand is a difficult problem. Here, it is convenient to use computer algebra systems (CAS). Co efficients are measures of mo de interaction so whether the co efficient is exactly zero or not, seem to b e imp ortant. The identification of zero co efficients using CAS can b e done analytically. The pap er thoroughly describ es a technology for automated calculation of the basis mo des and Galerkin co efficients using the Maple package. The case of an axisymmetric kinematic dynamo is considered. A description of the calculations for the complete system of magnetohydro dynamic convection would b e very long. However, the general idea is clear for the describ ed case. The prop osed technology allows quick and accurate generating of various sp ectral mo dels by varying the mo de sets. It seems to b e useful for the study of dynamos using sp ectral mo dels.
Method of quasi-invariant in CABARET schemes and its application for numerical calculation of gas dynamics problems
Authors: Колотилов В.А. , Остапенко В.В.
Published: May 2023

Приводится детальное описание метода квазиинвариантов при построении схемы CABARET, аппроксимирующей гиперболическую систему законов сохранения, не допускающую записи в форме инвариантов. В качестве примера рассмотрена система уравнений неизоэнтропической газовой динамики, для которой квазиинварианты получаются из классической характеристической формы записи этой системы. В результате построены три различных семейства квазиинвариантов, каждому из которых соответствует своя модификация схемы CABARET. Проведен сравнительный анализ точности этих модификаций при расчете задачи Сода о распаде разрыва в политропном газе. На основе этого анализа выделен оптимальный вид квазиинвариантов, позволяющий схеме CABARET с высокой точностью локализовать разрывы разной природы.

We consider detailed description of the quasi-invariants method for constructing a CABARET scheme approximating a hyperbolic system of conservation laws that cannot be written in the form of invariants. A classification of quasi-invariants with respect to their non-linear dependence on the desired functions for the corresponding non-divergent notation of the approximated system and describe a method for obtaining quasi-invariants of a given order of nonlinearity is presented. The algorithm of the resulting CABARET scheme is given for the unidirectional case when in the speed of the calculated exact solution the characteristics of one family does not change sign. As a specific example, we have considered the conservation laws system of non-isoentropic gas dynamics that admits three different families of quasi-invariants obtained from the classical nondivergent form of this system for the density, velocity, and entropy functions. Each family of these invariants corresponds to its own modification of the CABARET scheme. A comparative analysis for the accuracy of these modifications applied for calculation of the Sod problem on the initial discontinuity decay in a polytrophic gas is carried out. On the basis of this analysis, the optimal form of quasi-invariants has been identified, which allows localizing strong and weak discontinuities of the exact solution with high accuracy using the CABARET scheme.