bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of the use of various types of 3D printers in mechanical engineering
Authors: Kostiakov Aleksandr Evgenevich
Published: November 2023

Relevance. The article discusses the main types of 3D-printers that can be used in mechanical engineering. The analysis of the basic principles of operation, as well as the advantages, disadvantages and features of the use of these types of devices. In the end, the author will consider the possibilities of future research in the field of additive technologies.
The purpose of the research. To conduct an in-depth analysis of the use of 3D-printing in mechanical engineering. The purpose of the article is to study the application, advantages and limitations of various types of 3D-printers used in mechanical engineering. It also evaluates factors that influence the choice of printer, such as material compatibility, resolution, print volume and print speed. The study highlights the problems faced when integrating 3D-printing into mechanical engineering. The article concludes with a summary of the main conclusions, a discussion of the implications for management and decision-making, as well as the definition of future research opportunities.
The objectives of the study are to identify existing problems in the use of additive technologies in mechanical engineering and to consider possible applications in the future.
The results of the study. The study provides an overview of 3D-printing in mechanical engineering, its importance and application. It discusses various types of 3D-printers, their features and capabilities. The article analyzes the use of 3D-printers in mechanical engineering, assesses the advantages, limitations and impact on product quality, production time and economic efficiency. Factors influencing the choice of printer are investigated, such as compatibility of materials and requirements, resolution, print volume, print speed, post-processing and scalability requirements. The study also identifies challenges and future directions of 3D-printing integration, including potential advances in printing technology. In conclusion, the main conclusions are presented, their importance for decision-making in mechanical engineering and recommendations for improving the printer selection process. Future research opportunities are also highlighted.
Parental Acceptance of Behavior Management Techniques for Pediatric Dental Visits in Qassim, Saudi Arabia: A Cross-sectional Study
Authors: Aldhelai Thiyezen Abdullah , Shaman Almodhaibri Nimran , Alsughier Zeyad , Alharbi Saleh Abdullah
Published: November 2023

Background:

Behaviour management techniques have been commonly used to promote a child’s positive behaviour during oral health treatment. Parents play an important role in their child’s dental care and its delivery.

Objective:

This study aimed to determine the most accepted behaviour management techniques used in paediatric dental clinics and assess the parents’ acceptance level for each technique using a visual analogue scale.

Methods:

This cross-sectional study based in Qassim, Saudi Arabia, used videotaped scenes of seven behaviour management techniques recorded in Arabic. After watching the videos, parents filled out a questionnaire on acceptance of each technique and rated their acceptance of it by using a visual analogue scale.

Results:

The study consisted of 130 parents, of which 86 (66.2%) were males and 44 (33.8%) were females. 96.9% of parents approved positive reinforcement, which was followed by tell-show-do (TSD) with 93.1% acceptance. General anesthesia (47.7%) was the least accepted behavioral management technique.

Conclusion:

It is crucial for parents to systematically understand the procedures to be used in a pediatric dental setting. Dentist-parent communication is necessary to address any concerns, thereby creating a safe environment to deliver quality oral care.
The Diagnostic Significance of Serum Sclerostin in Early Detection of Rheumatoid Arthritis in Syrian Patients
Authors: Hussein Rama , Aboukhamis Imad
Published: November 2023

Background:

Rheumatoid arthritis (RA) is associated with joint deformities and local bone erosions. Sclerostin is an inhibitor of the Wnt pathway and drives to reduce bone formation.

Aims:

Our study aimed to compare the diagnostic significance of sclerostin with anti-CCP (anti-cyclic citrullinated peptide; normal level<20 IU/ml, and rheumatoid factor (RF; normal level<16 IU/ml) for the early diagnosis of rheumatoid arthritis in Syrian patients.

Methods:

This study contained fifty-eight RA patients and thirty healthy individuals who were equally age- and sex-matched. Serum sclerostin and serum anti-CCP (IgG) levels were evaluated by using the enzyme-linked immunosorbent assay (ELISA). RA activity was assessed based on disease activity scores (DAS28).

Results:

Our results indicated that serum levels of sclerostin levels were higher in the RA group than in the healthy group (p<0.001). There was a positive correlation between serum sclerostin and DAS28-ESR (r=0.413, p=0.001). By ROC curve, the most optimal cut-off value of sclerostin was 249.69 pg/ml (AUC was 0.910 with 95% confidence interval (CI) values (0.852-0.969), sensitivity of 87.9%, and specificity of 93.3%) [Odds Ratio (OR) and P-value: 102, P< 0.0001]. In RA patients, the sensitivity and specificity of anti-CCP were 74.1% and 90%, and 70.6% and 86.6% of RF, respectively.

Conclusion:

Increased serum sclerostin may aid as a new prognostic biomarker for evaluating the activity of RA. Sclerostin showed higher sensitivity and specificity than anti-CCP and RF-IgM antibodies. Therefore, sclerostin is a sensitive and specific biomarker for early diagnosis of rheumatoid arthritis.
Decision-making Support System for Predicting and Eliminating Malnutrition and Anemia
Authors: Maasthi Manasvi Jagadeesh , Gururaj Harinahalli Lokesh , Ravi Vinayakumar , D Basavesha , Almeshari Meshari , Alzamil Yasser
Published: November 2023

Aims:

This study investigates predicting and eliminating malnutrition and anemia using ML Algorithms and comparing all the methods with various malnutrition-based parameters.

Background:

The health of the nation is more important than the wealth of the nation. Malnutrition and anemia are serious health issues but the least importance is given to eradicate them.

Objective:

Proper nutrition is an essential component for the survival, growth, and development of infants, children, and women who in turn give birth to infants.

Methods:

In the proposed system, machine learning approaches are utilized to predict the malnutrition status of children under five years of age and anemia in men and women using old datasets and further providing a suitable diet recommendation to overcome the disease. Classification techniques are being used for malnutrition as well as anemia prediction.

Results:

Algorithms such as Naïve Bayes classifier (NBC), Decision Tree (DT) algorithm, Random Forest (RF) algorithm, and K-Nearest Neighbor (k-NN) algorithm are utilized for prediction. The results obtained by these algorithms are 94.47%, 85%, 95.49%, and 63.15%. When compared, Naïve Bayes and random forest algorithm provided efficient results for malnutrition and anemia, respectively.

Conclusion:

By testing and validating, preventive actions can be taken with the help of medical experts and dieticians to reduce malnutrition and anemia conditions among children and elders, respectively.
Policies and Models for Efficient and Eco-sustainable Ports
Authors: Gattuso Domenico , Pellicanò Domenica Savia , Cassone Gian Carla
Published: November 2023

Introduction

The port system is one of the main sources of national and international trade; it is essential for the transfer of freight and people, but at the same time it is a critical site in relation to energy consumption and greenhouse gas emissions. For this reason, some management strategies are developed to optimize the freight terminal activities using innovative technologies to limit the negative environmental impacts.

Objective

This study focuses specifically on vehicle management on the landside of a container port and aims to evaluate the impacts and performance of the system, in which the traditional handling units are replaced by green and automated ones. The study is part of a framework of actions to be undertaken to pursue the target “to make a port more competitive and sustainable”.

Methods

This study deals with the assessment of the handling time, energy consumption, and gas emission deriving from the innovative vehicular technologies capable of making the port more competitive and sustainable. A modeling approach is used to understand the possible impacts generated by new technologies on port performance. The models have been calibrated on the basis of a large database carried out by a specific survey of port operators and specialized companies.

Results

A case study is proposed about the container port of Gioia Tauro (Italy), an important port in the center of the Mediterranean area in terms of transshipment. Some specific indicators are analyzed by quantitative models, such as energy consumption for efficiency and harmful gases for ecology, considering the current port configuration and some project scenarios in which green and automated handling units are used. The analysis has been performed using a spreadsheet, with automatic calculation. The input data related to the actual port configuration have been provided by the port management company; those related to the scenarios have been taken from specialized companies. Data included refer to the last 5 years.

Conclusion

The study highlights the advantages of green and automated handling means; the use of these solutions represents a fundamental step to making a port more competitive and sustainable. This research could stimulate policymakers and port managers towards innovative technological solutions to make a port more competitive and sustainable. The proposed approach can be applied and extended to other contexts.
Gum-based Nanoparticles Targeting for Colon Rectal Cancer: Latest
Research and Patents
Authors: Shakya Shilpi , Tiwari Ritesh Kumar , Gupta Arti
Published: November 2023

Colorectal disease is the third most prevelant cancer in both men and women, with an
expected 106,180 new cases of colon cancer and 44,850 new cases of rectal cancer as per American
Cancer Society. Targeted medicine delivery is vital in the treatment of colon disorders because it
delivers long-term therapeutic results with little side effects. Natural polymer is biocompatible and
biodegradable, which enables safety, improves storage, and physiological stability, it is utilized as
drug delivery vehicles and has made great strides in recent years. Chitosan, alginate, pectin, guar
gum, dextran, hyaluronic acid, and arabinoxylan are examples of natural polysaccharides that are
utilized to create nanoparticles. Natural gums serve two purposes: first, they shield the medicine
from stomach and intestinal conditions, allowing it to only be released in the colon. In this review,
we introduce the different gum particularly used in nanoparticles formulation, and then discuss recent
research and the latest patent in the development of gum-based nanoparticles for the treatment
of colon rectal cancer.
Zirconium Dioxide Nanoparticles Effect on the Color Stability of Maxillofacial Silicone after Outdoor Weathering
Authors: Abdalqadir Mohammed , Azhdar Bruska
Published: November 2023

Background:

Maxillofacial prostheses made of silicone elastomers tend to lose color. Despite advances in materials and processes, color change over time remains a challenge.

Objective:

This in vitro study aimed to observe how zirconium dioxide (ZrO2) nanoparticles impact the color stability of M511 heat temperature vulcanizing (HTV) silicone elastomer following outdoor weathering.

Methods:

ZrO2 nanoparticles were added in concentrations of 1%, 2%, and 3% by weight to the M511 HTV silicone elastomer. Brilliant red- and mocha-pigmented silicone pigments were utilized, along with colorless silicone as a base control. A total of 90 disk-shaped specimens were fabricated and divided into nine experimental groups, each containing ten samples (n = 10). All specimens were subjected to 6 months of outdoor weathering. A colorimeter was used to measure the values of L*a*b* according to the CIELab system. The 50:50% perceptibility threshold (∆E* = 1.1) and acceptability threshold (∆E* = 3.0) were used to interpret recorded color differences. At the 0.05 level of significance, the 1-way ANOVA and the Tukey post hoc test were used in the statistical analysis.

Results:

All evaluated specimen groups experienced a chromatic alteration (∆E* > 0). The ∆E* values exceeded the perceptible threshold in all groups (1.1 units). The ∆E* value of the colorless group and the red pigment with and without ZrO2 nanoparticles were both above the acceptable threshold (p < 0.001). Mocha control was also above the acceptable level but was not statistically significant (p > 0.99). ZrO2 nanoparticles showed a reduction in color change.

Conclusion:

According to this in vitro study, all specimens underwent color changes. Even colorless silicone exhibited a significant color change. The red pigment showed a highly significant chromatic alteration. ZrO2 nanoparticles showed important protection and a reduction in color change. Its protecting action increased with an increase in the concentration of ZrO2 nanoparticles (3% ZrO2 > 2% ZrO2 > 1% ZrO2).
Australia's Middle Power Approach Towards Climate Change in Pacific Island
Authors:   UIN Syarif Hidayatullah Jakarta, Narisya Siti Dinda
Published: November 2023

This article tends to examine the ways Australia approaching climate change in the region associated with its middle power status. Pacific Islands or Southwest Pacific Region is a regional territory that almost of all its surface covered by water. The region is prominent for having numbers of island countries or island states which are very dependent on natural conditions. They are vulnerable to the change of nature thus it hits their top national security. The issue of climate change in recent years has gotten more serious attention from all over the world and so does the pacific island region with no exception. Australia with its unique feature of being known as a middle power state and as the most secure nation in the region has served a distinctive approach on addressing the issue of climate change. The behavior and identity approach are adequately in line to establish certain strategies associated with middle power status in the role of guiding Australiaâ€™s foreign policy. Keywords: climate change, Island states, middle power, Australia, foreign policy.
Diplomasi Panda dan Hubungan Bilateral China-Jerman Tahun 2016-2019
Authors:   Universitas Pembangunan Nasional 'Veteran' Jawa Timur, Sasmita Anggraini Ika , Utomo Ario Bimo ,   Universitas Pembangunan Nasional 'Veteran' Jawa Timur
Published: November 2023

Since the 7th century, China has been giving their endemic animal, Giant Panda, as one of public diplomacy practice also known as Panda Diplomacy. Chinaâ€™s Panda Diplomacy only applies to countries that have profitable historical trade with China. This Research will discuss on how Chinaâ€™s government effort to implement panda diplomacy to Germany, which has been the high-technology main importer country for China since 1999. However the relations ever been on a tense stage, since Germany considered China as a competitor. To keep rhe good relation market with Germany, Xi Jinping commanded Chinaâ€™s Wildlife Conservation and Association to lend a giant panda as a friendship symbol for both countries. This paper employs a qualitative method using Eytan Gilboa framework to analyze public diplomacy application with timw, purpose, public opinion, government and instrument as the research variable. From those variables will shown how panda diplomacy as a public diplomacy practice with long term relations as a result. Keywords : Public Diplomacy, Panda Diplomacy, China, Germany
Home / Archives / Vol. 8 No. 2 (2021): Jurnal Tranformasi Global (JTG) / Articles Pandemi dan Pemenuhan Hak Anak: Studi Kasus Peran Unicef di Yaman pada Masa Covid-19
Authors:   UPN Veteran Jawa Timur, Kusuma Erzalina Widya , Djatmiko Djatmiko ,   UPN Veteran Jawa Timur, Rasyidah Resa ,   UPN Veteran Jawa Timur
Published: November 2023

Covid-19 has become a pandemic that has rapidly spread throughout the world. Less than 3 months since it was discovered in China in December 2019, the Covid-19 pandemic has crippled the world economy and caused the delivery of humanitarian aid to Yemen to be hampered due to the Covid-19 outbreak. In addition, there are still wars that cause damage to health facilities. The war, the Covid-19 epidemic and Cholera disease are adding to the devastating effects on growing children in Yemen. UNICEF, as an IGO that focuses on children, reports that in 2020 there were around 34 incidents that made these children victims of child abuse and attacks on educational facilities. This research describes the role of UNICEF in Yemen from 2019 to 2020 in fulfilling childrenâ€™s rights due to 3 disasters, namely Covid-19, conflict and cholera that occurred in Yemen. This research uses the theory of the role of international organizations as aid providers which is manifested in the form of Humanitarian Assistance. This type of research is a descriptive study that uses data collection techniques in the form of literature studies from 2019 to 2020 sourced from reports from The UNICEF, the WHO website, the UN website, and various verified mass media. UNICEF's role in the form of Humanitarian Assistance is manifested in 5 programs: education, child protection, nutrition, health and sanitation. Keywords: UNICEF, Yemen, Humanitarian Assistance, Covid-19 Pandemic, Children's Rights.
Dampak Kemenangan Taliban atas Afghanistan terhadap Kegiatan Terorisme di Indonesia
Authors:   Universitas Singaperbangsa Karawang, Muttamimah Dewi Kamal
Published: November 2023

The Taliban won their victory back on August 15, 2021, after its reign in the American invasion after 9/11. Where at the time, the Taliban moved Osama bin Laden from Sudan to Afghanistan and refused to turn him over to US. It is certainly of concern to the world, especially Indonesia, which is predominantly Muslim, as the Taliban aim to establish an Islamic state. Indonesia, with its long history of terrorism, should be more concerned about what the Taliban's victory will do to terrorism in Indonesia. In this article, I am trying to examine the history of the Taliban and its connections to terrorist networks in Indonesia. The Taliban's victory is concerned that it will affect the long term with humanitarian intervention following an ideological shift and trying to change state systems. As for the short term, there is the recruitment of many members of terrorist networks by giving public opinion that a Taliban victory is an Islamic victory. Keywords: terrorism, Taliban, Afghanistan, Indonesia, Islam
Study of some genetic and molecular markers for some rheumatoid
arthritis patients in Iraq.
Authors: Talib Al-Safi Mushtaq , T. Qasim Maytham
Published: November 2023

Rheumatoid arthritis is an autoimmune disorder, and genetic factors strongly contribute to a genetic predisposition to developing the disease. This study evaluated
the genetic and molecular indicators of some Iraqi patients with rheumatoid arthritis. The study included (100) patients with rheumatoid arthritis with (100) healthy
individuals who attended Al-Hussain General Teaching Hospital, Department of
Arthritis and Joints Centre, al Blood Bank in Baghdad for the period from the beginning of January 2022 until the end of March 2022. The patients were diagnosed
under the supervision of medical committees specialized in joint diseases. The human leukocyte antigen is one of the essential genetic factors in regulating the immune response, as these antigens contribute to the susceptibility to disease. Human
leukocyte antigen (HLA) class II (Class-II- HLA-DR, -DQ) was genotyped using
lymphocytotoxicity assay and PCR-SSP method. The results showed that there was
a significant increase in the recurrence of human leukocyte antigens (DR4 R53) in
rheumatoid arthritis patients compared to the healthy ones, as well as an increase
in the recurrence of human leukocyte antigens (HLA-DQ3) with a significant difference in rheumatoid arthritis patients compared to the healthy ones. Regarding
HLA-DRB1 and -DQB1 alleles, it was found that there was a significant increase
in the frequency of HLA-DRB1*04 (01-22, not 0415) compared to healthy controls, while the percentage of HLA-DRB1*0701 alleles was less frequent in patients compared to healthy controls. Moreover, the frequency of HLADQB1*03(02,07) alleles was high in the patients compared to the healthy ones,
while HLA-DQB1*0303 showed a highly significant difference in the healthy
group compared to the patients.
Keywords: Rheumatoid arthritis, genetic factors, HLA-DRB1, -DQB1 alleles,
PCR.
Evaluation of the anti-arthritic activity of Capparis spinosa L. roots extracts incomplete Freund’s adjuvant-induced arthritis in mice.
Authors: Jalebawi Rand J.A. , Hakeem Chyad Amer
Published: November 2023

This study aimed to estimate the ant-arthritic activity of Capparis spinosa L. roots extract in complete Freund’s adjuvant (CFA)-induced arthritis mice by assessment of paw thickness, serological detection of inflammatory markers [rheumatoid factor (RF) and tumor necrosis factor-alpha (TNF-)] using ELISA, and histopathology. In total, 30 male mice were selected, prepared, and divided equally into five groups, including 2 control (NC and PC)and 3 experimental: EG1 (arthritis mice treated total effective dose of extract), EG2(arthritis mice treated total effective dose of Diclofenac Sodium), and EG3 (arthritis mice treated a half effective dose of each the extract and Diclofenac). Clinically, the extract administration lowered the paw thickness from day 7th onwards, the 21st day of study, while the extract administration lowered the paw thickness in EG1 from day 7th onwards compared to EG2 and EG3. For hematology, significant decreases were reported in RBCs, HCT, Hb, WBCs and neutrophils due to arthritis, and significant amelioration was seen obviously in mice of EG1 as a result of therapy. Significant increases in platelets, lymphocytes and monocytes were observed in PC and experimentally groups, significantly improving the values of treated groups due to therapy, in particular, EG1. All study groups ' values of MCV, MCH, MCHC, basophils and eosinophils have differed insignificantly. Concerning RF, the highest significant value was reported in PC while the lowest in NC, but without significant differences between EG1, EG2 and EG3 values. For TNF-, elevation had been recorded in PC mice, whereas reduction in NC, EG1 and EG3. Also, the value of EG2 was significantly higher than recorded in mice of EG1 and EG3. Concerning histology, the findings of EG1 revealed a significant amelioration compared to other groups. In conclusion, C. spinosa L. root extract demonstrated anti-inflammatory and anti-arthritic activity. Furthermore, studies to detect the therapeutic effects of the root extract on other systemic or local diseases are needed. Keywords: Paw thickness; Rheumatoid factor; Inflammatory markers; Diclofenac Sodium; Iraq
In Vitro, Pathogenicity of Pseudomonas savasana Isolated from Olive Trees in Iraq on Fruits of Various Plant Species and its Detection
by Polymerase Chain Reaction (BCR)
Authors: A. Al-obaidy Ghaith A. , IlBas Ali I. , AL-kawthary Safae A. H.
Published: November 2023

In this study, after a field survey of olive trees in some northern areas in the
Kurdistan region of Iraq and the province of Dohuk, samples were collected for
bacteria Pseudomonas Savastonifrom olive trees infected with olive knot—the
period from the beginning of March until the end of May for the diagnosis of
Pseudomonas Savastoni. After activating the bacteria, we started inoculating the
bacteria on the fruits of other plants, such as carrots, lemons, beans, local apples
and hidden apples. These fruits were subjected to the same environmental
conditions of humidity, temperature and incubation period. However, no
symptoms of infection of the fruits with this bacteria appeared. Only the carrots
were found to be infected with this bacteria after 13 days of incubation, but after
20 days, the bacteria had infected all the carrots. We isolated the bacteria again
from the infected carrot. We performed all microscopic, phenotypic and
biochemical tests and subjected the bacterial isolates to a device determined
using the VITEK2 system to identify the type of bacteria. Bacteria we conducted
molecular tests on them, such as the test PCR and the test RT-PCR for the gene
16S r RNA. After the results appeared, the isolates were subjected to genetic
sequencing to ensure the occurrence of genetic mutations of the gene 16S r RNA.
Keywords: Pseudomonas Savastoni, 16S r RNA, RT-PCR, VITEK2, Sequencing
Okra productivity and nutrient concentrations in the vegetative and
fruiting parts as a result of mineral fertilization and fertilizer application sites
Authors: Taha Khudhair Amer , Jamal Abdulrasool Qahtan
Published: November 2023

A field experiment was carried out in one of the farms in the district of
Al-Suwaira-Wasit governorate for the 2021 agricultural season. To find out the
effect of adding levels of NPK and the places of addition on their concentrations in
the vegetative and fruiting part and the productivity of the okra crop. Six treatments were produced from the fertilizers levels, and the addition distances are
C2D2, C2D1, C1D2, C1D1, C0D2, and C0D1. With three replications, experimental units become 18 units. A completely randomized block design (RCBD)
was used to distribute treatments. The dry weight and root diameters of the plant
were taken, and the NPK concentrations were estimated in the vegetative part at
the end of the season, as well as the NPK concentrations in the fruiting part of the
first and last fairies and the cumulative yield was taken. The results showed a
significant effect of NPK levels on nitrogen and phosphorous concentrations in the
vegetative and fruiting parts, while the effect was not significant on potassium
concentration. The position of the fertilizer application did not significantly affect
the concentration of NPK in the plant. The second level of fertilization, C2, had a
significant effect on the dry weight of the plant, while the fertilization levels had no
significant effect on the diameter of the roots. Fertilizer levels had a significant
effect on yield.
Keywords: mineral fertilization, application sites, NPK, okra.
Identify Reviews of Pedulilindungi Applications using Topic Modeling with Latent Dirichlet Allocation Method
Authors: Hardiyanti Layli , Anggraini Dina , Kurniawati Ana
Published: November 2023

The emergence of Covid-19 in December 2019 has disrupted life worldwide, including Indonesia. The government has made various efforts to control the pandemic, one of which is the development of an application called PeduliLindungi. This app aims to be a reliable tool for the government and the entire community during the pandemic. As a new regulation, the use of PeduliLindungi has prompted numerous reviews assessing its quality and performance. With the app's emergence and growth, various topics have emerged and become trending among the public. These topics were identified through user reviews of the PeduliLindungi app, using the Latent Dirichlet Allocation (LDA) algorithm. The data, consisting of 15,522 reviews, was collected from the Google Play Store and underwent pre-processing, including dictionary and corpus creation, determining the number of topics, and modeling with LDA. The resulting topic modeling process generated the ten most prominent topics. The outcomes were visualized using word clouds and topic distribution graphs, representing the most discussed aspects of the PeduliLindungi app among users. These topics are considered diverse since each issue has no relation or similarity to one another.
Implementasi Kontrol Nutrisi Dan pH Pada Hidroponik Cerdas Berbasis Arduino Dan JST
Authors: Zul Hazmi Muhammad Naufal , Sumiharto Raden
Published: November 2023

This research aims to implement an automated nutrition and pH control system in NFT hydroponic system based on ANN control. NFT hydroponics involves growing plants without soil as a medium. In hydroponics, it is essential to continuously control the nutrient levels and pH of the solution. However, manual control performed by humans continuously is inefficient and time-consuming.The ANN method is used to model and predict the output actuators based on sensor input in the NFT hydroponic system. This ANN architecture consists of several layers with the following number of neurons: input layer 2, first hidden layer 128, second hidden layer 64, and output layer 3, representing multipleoutputs. The ANN training process involves classifying the data samples using various hyperparameters.The research findings demonstrate the ANN classification model successfully applied to control pH and nutrient levels through the predicted output actuators. The pump actuators are activated according to input received from the TDS and pH sensors. Through the variation of hyperparameters, the classification model with a test_size: 0.3, epoch: 400, batch_size: 32, and random_state: 42 provided the best performance in prediction. This ANN classification model achieved the best results in model testing with an accuracy rate:  97.96% from 49 data.
América en la curiosidad otomana: para una perspectiva global de los descubrimientos
Authors: Taboada Hernán G. H.
Published: November 2023

Recapitulación de la información otomana sobre América durante el siglo XVI, se le ubica en una perspectiva global –y ya no eurocéntrica– de los llamados descubrimientos geográficos.
Comparative Characterization of Water Source Flowing in Ultapani Drain and Water Samples of other nearby Sources
Authors: Dewangan Shailesh Kumar , Chaohan Bodh Ram , Shrivastava Dr. S. K. , Shrivastava Dr. A. K.
Published: November 2023

Water quality is a critical aspect of environmental health, impacting both human and ecological well-being. This study aims to compare and characterize the water source flowing in Ultapani drain with water samples collected from other nearby sources. The objective is to assess the variations in physical and chemical parameters, providing insights into the overall water quality in the study area.
Destination Image as Mediation: Factors Affecting Customer Satisfaction in the Natuna Food Industry
Authors: Samara Emil , Ulum Ihyaul , Juliati Ratih
Published: November 2023

Customer satisfaction is an essential factor related to a person's assessment of a product and the main topic of the food industry. This study analyzes the influence of product quality, price, and tourist destination variables on customer satisfaction through destination image as mediation. The sampling technique for this research is a non-probability sampling technique by accidental sampling. The characteristics of the sample respondents in this study were those who had visited and consumed Natuna culinary specialties twice at the Tanjung Beach Tourism Object in Northeast Bunguran District. Data collection was carried out by distributing questionnaires directly to the research object. The sample in the study amounted to 200 respondents. The data analysis method uses Structural Equation Modeling with the AMOS program. The results show that product quality, price, tourist destinations, and destination image affect customer satisfaction. Destination image can mediate tourist destinations on customer satisfaction. Meanwhile, destination image does not judge the impact of price and product quality on customer satisfaction.
Robust Extraction of Thermal Observables from State Sampling and Real-Time Dynamics on Quantum Computers
Authors: Ghanem Khaldoon , Schuckert Alexander , Dreyer Henrik
Published: November 2023

Simulating properties of quantum materials is one of the most promising applications of quantum computation, both near- and long-term. While real-time dynamics can be straightforwardly implemented, the finite temperature ensemble involves non-unitary operators that render an implementation on a near-term quantum computer extremely challenging. Recently, Lu, Bañuls and Cirac \cite{Lu2021} suggested a "time-series quantum Monte Carlo method" which circumvents this problem by extracting finite temperature properties from real-time simulations via Wick's rotation and Monte Carlo sampling of easily preparable states. In this paper, we address the challenges associated with the practical applications of this method, using the two-dimensional transverse field Ising model as a testbed. We demonstrate that estimating Boltzmann weights via Wick's rotation is very sensitive to time-domain truncation and statistical shot noise. To alleviate this problem, we introduce a technique that imposes constraints on the density of states, most notably its non-negativity, and show that this way, we can reliably extract Boltzmann weights from noisy time series. In addition, we show how to reduce the statistical errors of Monte Carlo sampling via a reweighted version of the Wolff cluster algorithm. Our work enables the implementation of the time-series algorithm on present-day quantum computers to study finite temperature properties of many-body quantum systems.
Portraying Indonesian English language teachers’ readiness for teaching online classes
Authors: Tutyandari Caecilia , Purnamaningwulan Rina Astuti
Published: November 2023

Amidst the proliferation of the COVID-19 virus in Indonesia, educators, students, and educational institutions are still adapting to the implementation of online instructional methods. This investigation delves into the preparedness of English as a Foreign Language (EFL) teachers in conducting online classes, as well as the obstacles they encounter while doing so. The purpose of this study is to serve as a foundation for schools to develop effective strategies for administering online classes, and to equip teachers with the necessary skills to facilitate learning in the online realm. This current research employed a mixed-method design in order to gather the essential information required to address the research questions at hand. The data was collected through the utilization of an online Likert-scale questionnaire and focus group interviews. The questionnaire was utilized to evaluate teachers' preparedness across three dimensions: Technological Pedagogical Content Knowledge (TPACK), teachers' presence, and institutional support. A total of 336 EFL teachers from various high schools in Indonesia voluntarily participated in the survey, while nine participants took part in the focus group interviews. The findings of this investigation indicate that, on average, EFL teachers possess a moderate to high level of perceived preparedness across the three aforementioned dimensions. This suggests that the majority of teachers are adequately equipped to engage in distance learning. However, the present findings also shed light on the concerns expressed by teachers during the online teaching and learning process. These challenges encompass the proficiency of teachers in utilizing TPACK, the workload imposed on teachers, the psychological well-being of students, and the support provided by educational institutions. Furthermore, this exploration provides a concise overview of the intricate nature of teachers' preparedness.
Grammatical interference in Islamic school students’ English narrative writings
Authors: Ayu Dian Pawitri , Nurweni Ari
Published: November 2023

Employing a qualitative approach, this study aims to discover the types of grammatical interference that mostly occur in narrative texts written by Indonesian students at a senior high school level. The grammatical interference covered in this article is categorized into two, namely syntactical interference and morphological interference. Moreover, 20 eleventh-grader students of an Islamic school were chosen randomly to be the sample of this research. The students were asked to compose a narrative text with a topic that has been determined by the teacher. Their writings were then analyzed descriptively to find out the dominant types of grammatical interference made by the students. It was revealed that the students encountered morphological inferences related to tenses, articles, subject-plural forms, and pronouns. Besides, syntactical inferences regarding word order, noun phrase, and passive voice are found in the students’ writings. Thus, it implies that students often used the grammatical rules of their first language in composing their writings in English.
Scrutinizing online instructional approach: What drives faculty to adopt synchronous virtual classroom
Authors: Muluk Safrul , Habiburrahim Habiburrahim , Safrul Muhammad Safwan , Hakim Lukman , Amiruddin Amiruddin
Published: November 2023

The successful implementation of a method appliance can be attributed to the method itself. The matter of synchronous virtual classrooms is influenced by several factors. The adoption of synchronous virtual classrooms by faculty members provides a valuable experience for both students and lecturers. This study aims to identify the triggering factors that motivated faculty members to adopt synchronous virtual classrooms. Additionally, it seeks to examine the challenges faced by students and lecturers in implementing this method. The researchers utilized interviews and literature sources as instruments for data collection. A total of five lecturers were selected as respondents for this research. The criterion for selection was their implementation of this method in their department's courses and their experience with synchronous virtual classrooms. The collected data was thematically analyzed. The results revealed that the main triggering factor for adoption was the Covid-19 pandemic. The challenges faced by students and lecturers were not limited to technological and internet issues but also included a lack of preparation from the faculty. Based on the data analysis and interviews, future research could explore the potential of combining methods to create a more effective approach in different situational conditions.
Peningkatan Hasil Belajar Biologi Siswa dengan Model STAD Pada Konsep Jaringan Tumbuhan
Authors: Fitri Yusri Rahmi , Siti Nurhalijah Siti Nurhalijah , Pricillia Humaira Pricillia Humaira , Putri Fatmaya Putri Fatmaya , Suci Novany Suci Novany , Annisa Purba Annisa Purba
Published: November 2023

In a teaching and learning process, apart from the teacher, there are two very important elements, namely teaching methods and learning media. Learning has several models or learning approaches, one of which is cooperative learning. Cooperative learning is a learning approach that focuses on using small groups of students to work together and maximize learning conditions to achieve learning objectives. Student teams achievement division (STAD) learning is a type of cooperative learning that emphasizes interaction between students to motivate each other and help each other in mastering the material and achieving maximum achievement. This study aims to determine the improvement of students' biology learning outcomes with the stad type cooperative learning model on the concept of plant tissue. This research method is literature review. Literature review is a literature search and research by reading various books, journals, and other publications related to the research topic, to produce an article related to a particular topic. Based on the above discussion, it is concluded that the use of the STAD type cooperative learning model has a significant effect on improving student biology learning outcomes on the concept of plant tissue.
Key words: Education, Learning, Cooperative, and STAD
 
ABSTRAK
Proses belajar mengajar, selain guru ada dua unsur yang amat penting yaitu metode mengajar dan media pembelajaran. Pembelajaran memiliki beberapa model atau pendekatan pembelajaran, salah satunya adalah pembelajaran kooperatif. Pembelajaran kooperatif merupakan suatu pendekatan pembelajaran yang berfokus pada penggunaan kelompok kecil siswa untuk bekerja sama dan memaksimalkan kondisi belajar untuk mencapai tujuan belajar. Pembelajaran student teams achievement division (STAD) merupakan salah satu tipe pembelajaran kooperatif yang menekankan interaksi diantara siswa untuk saling memotivasi dan saling membantu dalam menguasai materi dan mencapai prestasi secara maksimal. Penelitian kali ini bertujuan untuk mengetahui peningkatan hasil belajar biologi siswa dengan model pembelajaran kooperatif tipe stad pada konsep jaringan tumbuhan. Metode penelitian ini adalah literature review. Literature review  adalah suatu penelusuran dan penelitian kepustakaan dengan membaca  berbagai buku, jurnal, dan terbitan-terbitan lain yang berikaitan dengan  topik penelitian, untuk menghasilkan suatu tulisan yang berkenaan  dengan suatu topik tertentu. Berdasarkan pembahasan diatas, disimpulkan bahwa penggunaan model pembelajaran kooperatif tipe STAD berpengaruh signifikan terhadap peningkatan hasil belajar biologi siswa pada konsep jaringan tumbuhan.
Kata kunci: Pendidikan, Pembelajaran, Koopertaif, STAD
Pengembangan Multimedia Interaktif Berbasis Android tentang Materi Animalia untuk Peserta Didik SMA/MA
Authors: Rahayu Dewi Fortuna , Ardi Ardi , Helendra Helendra , Yogica Relsas
Published: November 2023

Based on the results of observation made interactive multimedia based on android which is used as a learning medium that can motivate students and improve student learning outcomes is not yet available. This study aims to develop android-based interactive multimedia about valid animalia material for class X. Students. This research is a research and development using a 4D development model. The reserach subjects consisted of two biology lecturers at Padang State University and one biology teacher at SMAN 10 batanghari as validators in interactive multimedia. The instrument used to collect data is in the form of a validation questionnaire, to assess the product that has been made. The data analysis technique used is descriptive qualitative and quantitative descriptive analysis. Based on the results of android-based interactive multimedia about animalia material, an averge value of 92,1% was obtained with very valid criteria. In the validity test on this interactive multimedia, it is assessed that it consists of four components, namely the feasibility of content, language, presentation, and graphics.
Key words: interactive multimedia, android, animalia, validitas
Abstrak
Berdasarkan hasil observasi yang dilakukan multimedia interaktif berbasis android yang dijadikan sebagai media pembelajaran yang dapat memotivasi peserta didik dan meningkatkan hasil belajar peserta didik belum tersedia. Penelitian ini bertujuan untuk untuk mengembangkan multimedia interaktif berbasis android tentang materi animala untuk peserta didik kelas X yang valid. Penelitian ini merupakan penelitian pengembangan (Research and Development) dengan menggunakan model pengembangan 4D. Subjek penelitian terdiri dari dua orang dosen biologi Universitas Negeri Padang dan satu orang guru biologi SMAN 10 Batanghari sebagai validator pada multimedia interaktif. Instrumen yang digunakan untuk mengumpulkan data berupa angket validasi, untuk menilai produk yang telah dibuat. Teknik analisis data yang digunakan adalah analisis deskriptif kualitatif dan deskriptif kuantitatif. Berdasarkan hasil validasi dari multimedia interaktif berbasis android tentang materi animalia didapatkan nilai rata-rata sebesar 92,1% dengan kriteria sangat valid. Dalam uji validitas pada multimedia interaktif ini yang dinilai terdiri dari empat komponen yaitu kelayakan isi, kebahasaan, penyajian, dan kegrafikaan.
Kata kunci: Multimedia interaktif, android, animalia, validitas
Media Pembelajaran Berbantuan Aplikasi Multimedia Interaktif pada Materi Pencemaran Lingkungan
Authors: Ilham Syarif Muhammad , Dahlia Meirisa , Ilhami Aldeva , Safrizal Safrizal
Published: November 2023

As technology and information advances so rapidly, technology has driven developments in the world of education. This can be seen from the use of various learning media and also the tools used in the learning process are increasingly advanced and sophisticated, the world of education is also increasingly advanced along with technological advances. The purpose of this study is to find out the evaluation of the products that have been produced by researchers and the benefits of this research are so that researchers can find out what needs to be improved from the multimedia they have produced. This research is an R&D model multimedia development research at SMP 23 Pekanbaru for the implementation of this multimedia. Data collection was taken from a field survey conducted. From the results of the survey data it is known that interactive multimedia on environmental pollution material is very effective and very good to use. So it can be concluded that this interactive multimedia can be used in the learning process in environmental pollution material for grade 7 junior high school students
Abstrak. Seiring kemajuan teknologi dan informasi yang begitu pesat, teknologi telah mendorong perkembangan dalam dunia pendidikan. Hal tersebut dapat terlihat dari digunakannya beragam   media   pembelajaran dan   juga   alat -alat   yang   digunakan dalam   proses pembelajaran semakin maju dan canggih dunia pendidikan pun semakin maju seiring kemajuan teknologi. Tujuan dari penelitian ini yaitu untuk mengetahui penilaian dari produk yang telah dihasilkan oleh peneliti dan manfaat dari penelitian ini adalah agar peneliti dapat mengetahui apa saja yang perlu diperbaiki dari multimedia yang telah dihasilkannya. Penelitian ini merupakan penelitian pengembangan multimedia model R&D pada SMP 23 Pekanbaru untuk implementasi multimedia ini. Pengambilan data diambil dari survey lapangan yang dilakukan. Dari hasil data survey diketahui bahwa multimedia interaktif pada materi pencemaran lingkungan sangat efektif dan sangat bagus digunakan. Sehingga dapat disimpulkan bahwa multimedia interaktif ini dapat digunakan pada proses pembelajaran dalam materi pencemaran lingkungan untuk siswa SMP kelas 7