bluuebunny/crossref_metadata_2025 huggingface dataset:
KEWENANGAN DIREKTORAT KEPOLISIAN PERAIRAN DAN UDARA POLDA LAMPUNG DALAM PENYIDIKAN TINDAK PIDANA NARKOTIKA
Authors: Winata Rangga Yoga , Rachman Fathur , Yusnandi Yudi
Published: October 2023

Authority is the right to do something or order other people to do or not do something in order to achieve certain goals, one of which is the authority exercised by the Directorate of Water and Air Police of the Lampung Regional Police in the context of eradicating narcotics crimes that violate Law Number 35 of 2009 concerning Narcotics with the formulation of the problem: a) What is the Authority of the Directorate of Water and Air Police of the Lampung Regional Police in Investigating Criminal Acts of methamphetamine-type Narcotics in the Coastal Area of Teladas Tulang Bawang Village?; b) Does BPOM Lampung have the authority to test laboratories in investigating criminal acts of methamphetamine-type narcotics in the coastal area of Teladas Tulang Bawang village?The research method used is through a normative approach and an empirical approach. Sources of data are primary data in the form of information obtained directly and secondary data. Data collection procedures through library research, review of laws, and field studies through interviews. the data used is descriptive qualitative.The results of research conducted on the basis of the authority of the Directorate of Water and Air Police of the Lampung Regional Police regarding narcotics in Teladas Village were carried out through a) 1. Investigation; 2. Title of Case and Delivery of Warrant for Commencement of Investigation (SPDP); 4. Forced Efforts; 5. Examination; 6. Settlement of Case Files; 7. Submission of Case Files to the Public Prosecutor; 8. Submission of Suspects and Evidence. b) The Lampung Food and Drug Supervisory Agency has the authority to carry out narcotics laboratory tests in accordance with the Drug and Food Control Agency Regulation Number 9 of 2020 concerning the Strategic Plan of the Food and Drug Supervisory Agency by cooperating with law enforcement, namely laboratory testing in accordance with the noble values of teamwork for the sake of To improve the quality of enforcement, BPOM must cooperate with law enforcement.
Kekuatan Hukum Legalisasi Notaris Terhadap Perjanjian Hutang Piutang Jika Terjadi Wanprestasi
Authors: Kholik Syahpri , Mirwansyah Mirwansyah , Purwanti Yuli
Published: October 2023

In life in society, accounts payable has become one of the common occurrences. In its development, accounts payable are now carried out to meet urgent needs and also to support economic activities, one of which is in the world of business or business. However, we often find conditions where debtors fail to fulfill their obligations to pay their debts. This situation can be considered a default or a situation where the debtor does not carry out his obligations in a timely manner and is not in accordance with what was agreed. Default is regulated in Article 1238 of the Civil Code. Based on the background above, the issues to be discussed are: 1. What is the legal power of notary legalization of debt agreements in the event of default?.2. What are the legal consequences of the debt agreement if there is default by the parties?This research is a normative-empirical legal research with a descriptive research type that uses an empirical juridical approach. The data used are primary data in the form of interviews and also secondary data consisting of primary, secondary and tertiary legal materials. Data collection was carried out by means of literature study, interviews which were then analyzed qualitatively.The results of the study show that the Notary's legalization of debt and credit agreements does not have perfect evidentiary power because the truth lies in the signatures of the parties which, if acknowledged, are perfect evidence like authentic deeds, this is because the legalization function of privately made deeds is only to guarantee certainty. date and signatures of the parties. The legal consequences of the debt agreement if there is a default by the parties is that the debtor is required to pay compensation for the debtor's non-fulfillment of performance.Based on the results of the research and discussion, the researchers provide suggestions that the creditor should be able to assess whether the person who borrowed the money (the debtor) will be able to return all of his debts in full and on time.
Perbuatan Melawan Hukum (Onrechmatige Daad) Tidak Diberikannya Buku Pemilik Kendaraan Bermotor Setelah Pelunasan Perjanjian Kredit
Authors: Mulisa Nadya , Lutfi Mohammad , Yusnandi Yudi
Published: October 2023

Based on Decision No. 210/Pdt.G/2020/PN-Tjk showed that the Plaintiff's claim was partially granted, stating that Defendant I and Defendant II had committed an Unlawful Act (Onrechmatig Daad) which harmed the Plaintiff. The problem in this research is the factor that causes the unlawful act (onrechmatige daad) of not being given the Motorized Vehicle Ownership Book (BPKB) of a motorized vehicle in the case of Decision No. 210/Pdt.G/2020/PN-Tjk and the Judge's considerations in deciding cases against unlawful acts (onrechmatige daad) not being given a Motorized Vehicle Ownership Book (BPKB) for motorized vehicles based on Decision No. 210/Pdt.G/2020/PN-Tjk.The research method uses a normative and empirical juridical approach, a normative juridical approach is carried out by studying legal norms or rules, legal principles, while the empirical approach is carried out by direct interviews with informants who will be related to research problems, the data analysis used is qualitative analysis.The results of the study showed that the factors that led to the unlawful act were not given the motor vehicle owner's book (BPKB) in the case of Decision No. 210/Pdt.G/2020/PN-Tjk, namely a legal factor due to the absence of internal provisions requiring that fiduciary guarantees be notarized. The judge's considerations in deciding cases against unlawful acts are not giving a motorized vehicle owner's book (BPKB) based on that the creditor does not write off the Fiduciary Guarantee record after the debt from the debtor is paid off.
Akibat Hukum Pengalihan Hak Atas Kendaraan Bermotor Kepada Pihak Ketiga Dalam Kredit Dengan Jaminan Fidusia
Authors: Kusuma Pramana Adi , Maulidiana Lina , Robianti Masayu
Published: October 2023

One of these problems is the legal consequence of the transfer of legal issues over the transfer of rights over motorized vehicles to third parties in credit with a fiduciary guarantee in Decision Number: 210/Pdt.G/2020/Pn.Tjk in the decision stating that the Plaintiff's claim was granted to state 1. Defendant I (PT Toyota Astra Financial Services), and 2. Defendant II (Woto) has committed an unlawful act which harmed the Plaintiff, namely not being given a Motorized Vehicle Ownership Book (BPKB) for a Toyota Avanza F 52 V M/T 10 Years car 2014. This study aims to determine the legal problems of transferring rights to motorized vehicles to third parties in credit with a fiduciary guarantee in Decision Number: 210/Pdt.G/2020/Pn.Tjk are 1. The legal consequences of transferring rights to motorized vehicles to third parties in credit with fiduciary guarantees, 2 . What is the legal process for taking vehicle certificates for motorized vehicles that have been transferred to third parties in credit with fiduciary guarantees.The research method uses qualitative methods using normative and empirical approaches, data collection procedures using literature studies and field observation studies.The results of the study conclude the findings in the results of the legal consequences of the law on the transfer of rights over motorized vehicles to third parties in credit with a fiduciary guarantee in Decision Number: 210/Pdt.G/2020/Pn.Tjk, namely 1. In the Position Case (Punda Mentum Peten' di) transfer of rights to motorized vehicles to third parties in credit with fiduciary guarantees registered on 23 November 2020 at the Registrar's Office of the Tanjungkarang District Court in an e-court manner on 24 November 2020, 2. Basis of Decision (Posita) stated that Defendant I and Defendant II had committed an unlawful act (Onrechmatig Daad) which harmed the plaintiff,
EFFECTS OF SMOKING ON CIRCADIAN ARTERIAL BLOOD PRESSURE PROFILE IN PATIENTS WITH NON-ST-SEGMENT ELEVATION ACUTE CORONARY SYNDROME AND CHRONIC KIDNEY DISEASE
Authors: Yadzhyn Oksana , Solomenchuk Tetiana
Published: October 2023

The paper presents the results of a study of the effects of smoking on circadian arterial blood pressure (ABP) profile in patients with Non-ST-Segment Elevation Acute Coronary Syndrome (NSTE-ACS) and Chronic Kidney Disease (CKD).

Aim. The research aims at studying the features of circadian blood pressure monitoring (CBPM) in patients with NSTE-ACS and CKD, smoking-dependent.

Materials and Methods. The study includes 70 patients with NSTE-ACS and CKD aged 35 to 75 years. The patients were divided into 2 groups: Group I - 35 smokers (mean age - 60.09±1.66 years), Group II - 35 individuals who have never smoked (mean age - 62.31±1.04 years). The circadian blood pressure monitoring was carried out on the second day of hospital admission after stabilization of the patient's condition. The following indicators have been determined: systolic blood pressure (SBP) - daytime, nighttime, and average daily (24 hours) (SBPd, SBPn, and SBPav); diastolic blood pressure (DBPd, DBPn, and DBPav); pulse pressure (PBPd, PBPn, and PBPav); time index (TI) for SBPd and SBPn (SBPd TI and SBPn TI) and DBP (DBPd TI and DBPn TI); heart rate (HR). To study the renal functional status in the examined patients, the urine albumin-creatinine ratio (ACR) was determined using the semi-quantitative method. The glomerular filtration rate (GFR) was calculated using the CKD-EPI Creatinine Equation.

Results. Mean SBP, DBP, and PBP levels were significantly higher in Group I patients compared to Group II patients: SBPd - by 5.10% (p<0.05), SBPn - by 6.60% (p<0.05); DBPd - by 9.60% (p=0.01), DBPn - by 14.10% (p<0.05); PBPd - by 7% (p=0.05), PBPn - by 8.50% (p<0.05). The mean TI value also turned out to be significantly higher in the group of smokers (I) versus non-smokers (II): SBPd TI - by 55.50% (p<0.01), SBPn TI - by 58.90% (p<0.01), DBPd TI - by 57.50% (p<0.01), DBPn TI - by 46.30% (p<0.01). The HR was higher by 10.80% in Group I patients compared to Group II patients (p<0.01). The mean GFR level in smokers is 13.00% lower than in non-smokers (p<0.05). A 57% significantly higher ACR level was found in the group of smokers (Group I) compared to non-smokers (Group II) (p<0.01).

Conclusions. Mean SBP, DBP, PBP, TI, and HR levels were significantly higher in the group of smokers with NSTE-ACS and CKD. In the same Group, more distinct signs of kidney injury were found, namely, lower GFR values and higher ACR values, which indicates the probable adverse effect of smoking on ABP regulation and renal microvasculature.
IMPACT OF VITAMIN E AND SELENIUM INTAKE ON ANTIOXIDANT PROTECTION INDICATORS DURING PHYSICAL EXERTION IN INDIVIDUALS WITH HYPERTENSION
Authors: Dronyk Iryna , Dutka Roman , Chmyr Nathalia , Pshyk Roman , Didenko Oksana
Published: October 2023

Hypertension remains one of the main problems in modern medicine since it is a pathogenetic factor leading to a large number of cardiovascular diseases and premature death.

The aim of the study is to measure and compare the levels of sulfhydryl groups in plasma and blood as well as reduced glutathione of erythrocytes in patients with stage II hypertension before and after engaging in a controlled physical exercise taking into account the intake of vitamin E and selenium.

Material and Methods. There were 60 patients with stage II hypertension and 30 relatively healthy individuals. The individuals under observation performed a two-stage physical exercise on a stationary bicycle ergometer with the intensity, corresponding to 50 and 75% of the maximum oxygen consumption by the body. The overall duration of each stage of the physical exercise accounted for 5 minutes with a three-minute break to rest in between. Blood was taken from the ulnar vein before the cardiac stress test and 5 minutes after it. The content of sulfhydryl groups in plasma and erythrocytes, as well as reduced glutathione of erythrocytes was measured in patients before and after the physical exercise. The examination was conducted twice - before and after the intake of vitamin E and selenium.

Results and Discussion. Since the immediate response to a cardiac stress test performed on a stationary bicycle is shown by changes in the level of non-protein-bound sulfhydryl groups of erythrocytes (the level decreases), it can be assumed that they are involved in the formation of the primary compensatory reaction in response to physical exercise in individuals suffering from arterial hypertension.

Conclusion. Thus, the decrease in the level of non-protein-bound sulfhydryl groups of erythrocytes enables to assess the degree of stress that affects the human body, as well as the antioxidant protection enhancement in patients with hypertension after taking vitamin E and selenium both before and after engaging in physical exercise.
LEVELS OF NICOTINE ADDICTION IN CONSUMERS OF THE LATEST TOBACCO PRODUCTS
Authors: Kozii-Bredelieva Svitlana , Kovalska Iryna
Published: October 2023

Aim. Determining the level of nicotine addiction in consumers of the latest tobacco products.

Materials and Methods. We have surveyed 817 young people (from 18 to 45 years of age) living in Lviv region. Among them, two focus groups were distinguished: 96 respondents who indicated that they use electronic cigarettes with nicotine (ECN) for smoking and 93 respondents who indicated that they use tobacco products for electric heating (TPEHs). The Fagerstr?m test for determining nicotine addiction was used for the survey. The study uses the methods of structural-logical analysis, system approach and analysis, calculation of average and relative values, correlation analysis.

Results and Discussion. The average score of nicotine addiction for TPEH smokers (4.00 (2.00; 6.00) points) is higher (p>0.05) than for classic cigarette smokers (3.00 (1.00; 6.00) points) and ECN smokers (3.00 (1.00; 5.00) points). Regarding classic cigarette smokers and ECN smokers, the median nicotine addiction score is higher in men, whereas in TPEH smokers it is the same for both men and women. About a quarter of the surveyed TPEH smokers (23.66± 4.41%) have a high level of nicotine addiction. Regarding male smokers, the largest share of individuals with a high level of nicotine addiction is observed in the group of TPEH smokers - more than a third (36.36±7.25%) of men in this group. The greatest number of women with a high level of nicotine dependence is observed among smokers of ECN, namely a quarter of the surveyed respondents of this group (25.93±5.96%).

Conclusions. The findings of the study will be used in the development of a model for preventing the spread of the latest methods of tobacco consumption among the young population.
RESULTS OF CLINICAL AUDITS APPLIED IN UROLOGY PRACTICE: SYSTEMATIC REVIEW FROM 2008 TO 2023
Authors: Gutor Taras , Zimenkovsky Andriy
Published: October 2023

Aim. Identifying and evaluating the possibilities of clinical audit as exemplified by its use in urology.

Materials and Methods. The study was performed by analyzing clinical audit reports in urology. Information on clinical audit data was obtained from the electronic databases of clinical audits, such as NHS Digital, HQIP, the online library PubMed and the journal "The Online Journal of Clinical Audits". The methods of the system approach, bibliosemantic, content analysis and structural-logical analysis were used in the study.

Results and Discussion. The reports on the results of the clinical audit concerned various aspects of urology: health care management in urology departments; provision of medical care under inpatient conditions; prostate cancer, etc. Clinical audit was conducted in both public and private health care institutions. Based on the results of clinical audits, existing and potential problems and shortcomings were identified, on the basis of which specific recommendations were formulated. During the analyzed period, repeated clinical audits took place, the purpose of which was to monitor the effectiveness of implementations. A key feature that unites the analyzed clinical audit reports is the identification of needs and potential opportunities for improvement.

Conclusions. Based on the conducted systematic review, it was established that clinical audit is an effective tool for improving the quality of medical care, in particular, for urological patients. Therefore, it is likely to be applied in other areas of health care for effective management of clinical practice. Its use in private health care institutions will contribute to the improvement of patient care services, and its implementation in the public sector and at the national level of health care will ensure qualitative changes in the medical field.
IMPACT OF THE COVID-19 PANDEMIC AND MARTIAL LAW ON THE SATISFACTION OF THE LVIV REGION RESIDENTS WITH THE DIAGNOSTIC RADIOLOGY SERVICE (BASED ON THE RESULTS OF A SOCIOLOGICAL SURVEY)
Authors: Shcherbata Galyna , Kovalska Oksana
Published: October 2023

The aim of the study is to assess the satisfaction of the population of the Lviv region with the work of the diagnostic radiology service, to identify problems and ways to solve them.

Materials and Methods. A sociological survey involved 409 individuals who underwent diagnostic X-ray examinations at medical institutions in Lviv and the Lviv region.

Results and Discussion. Patients rated the quality of examinations in private medical institutions higher than in public ones. In general, 64.79% [60.1-69.34] of the respondents were completely satisfied with the provided medical diagnostic services, and 25.67% [21.56-30.01] were partially satisfied. Patients had comments regarding the quality of medical equipment, privacy during inspection and examination, as well as cleanliness and comfort in the office/department. There is a need to improve communication between the doctor and the patient: about a quarter of the respondents (23.72% - 28.61%) emphasized that they did not have the opportunity to communicate with the doctor and freely ask questions, and the doctor's explanation of the examination and the algorithm of the procedure were not fully understood and accessible. It was determined that after the introduction of martial law (since February 24, 2022), patients began to complain more often about the inconvenient appointment schedule (10.02% [7.31-13.12]), the impossibility or difficulty of making an appointment (11.25% [ 8.37-14.49]), difficulty in getting a referral for an examination (12.71% [9.67-16.11]), psychological problems (fear, anxiety about the examination result) - 15.16% [11.85-18.79], the distance of the required diagnostic facility from the place of residence (15.40% [12.07-19.06]). Instead, long queues (12.96% [9.88-16.38]), the need to have personal arrangements and contacts with radiologists (4.16% [2.44-6.30]), the inconvenience of the waiting room (3.42% [1.88-5.40]), as well as the duration of the examination itself (2.69% [1.35-4.48]) became less of a concern for patients.

Conclusions. The results of the conducted sociological survey proved the appropriate level of availability, promptness, and compliance with standards in the provision of medical diagnostic services. At the same time, several issues were identified in the work of the diagnostic radiology service. It is necessary to focus the attention of heads of medical institutions on the specified blocks of issues since most of them require an organizational solution and do not require additional funding.
Design and Implementation of an Online Electronic Platform to Manage Education Activities in the Computer Science Department at Mosul University
Authors: Modhar Yahiya Ali , Thaher Yaseen Ammar
Published: October 2023

In this work, data for electronic activities of lecturers in Computer Science Department was organized using a relational database management system to exploit relations between entities for facilitating access, view, and manipulation of data developed using Microsoft Visual C# programming language to obtain an easy-to-use graphical user interface (GUI). In addition, the Sap Crystal Report program was used to prepare reports for the electronic activities of the lecturers under study. The electronic system would reduce mistakes caused in the manual use of lecturers’ data. Additionally, it would speed up data access in case of viewing, updating or deleting the data without any errors. This project consisted of four phases, namely, system analysis, design, implementation and evaluation. Experiments explained that the suggested database system is more appropriate for lecturers’ information management, as more than 80% of the lecturers studied were satisfied with this project. This type of on-line platform system and its applications can be applied for stakeholders in various ways.
Isolation and identification of some predominant bacteria and assessment of TNF-α level in serum of patients with gingivitis
Authors: Jaseem Rahma M. , Yasin Lina Q.
Published: October 2023

This study was conducted to diagnose the aerobic bacterial species causing gingivitis, reveal the antibiotic susceptibility pattern and assess the level of tumor necrosis factor-alpha (TNF-α) in serum of patients with gingivitis. In total, 110 samples (including patient group and control group) were collected during the period from November 2021 until March 2022. Of which, 80 samples were collected by using oral swabs from patients attending the College of Dentistry at Tikrit University and outpatient clinics of both gender with different age groups. While the remaining 30 samples were collected from healthy individuals representing the control group. Identification of bacterial isolates was performed depending on micro and macroscopic cultural characteristics and biochemical tests. In addition to assessing the biochemical characteristics of the isolates, a VITKE2 compact system was used to ensure the identification of species level. The TNF-α concentrations in the serum were determined using an enzyme-linked immunosorbent assay known as a sandwich ELISA. Out of 80 samples, 60 (75%) samples showed positive bacterial growth cultures, while 20 (25%) samples showed no bacterial growth. The most common isolated bacteria species was Streptococcus mutans (18%), followed by Streptococcus mitis (13%), Staphylococcus aureus (12%) Streptococcus salivarius, Streptococcus pyogenes (8%) Staphylococcus  epidermidis, Enterococcus feacalis, Escherichia coli, Klebsilla pneumoniae (6%), Rothia dentocariosa, Pseudomonas aeruginosa (4%), and Streptococcus pneumonia, Kocuria kristinae, Granulicatella adiacens (3%). The sensitivity of the bacterial isolates under study was tested to 11 antibiotics. Different species of bacteria showed various sensitivity patterns to several kinds of antibiotics. The study recorded a high significant difference (P=0.0007) between the patients (56.54 + 9.32 pg/ml) and the control group (31.88 + 7.44 pg/ml) concerning the level of TNF-α. In conclusion, the predominant bacteria identified from gingivitis patients were S. mutans and S. mitis. In addition, the levels of TNF-α in gingivitis patients were significantly higher than in the control group.
Study the effect of adding buffer layer and back reflection on the performance of Chalcogenide compounds
Authors: Ghanem Hardan T.
Published: October 2023

Solar energy is one of the most important methods used worldwide to provide some of the global energy requirements. It is easily available and free from negative effects on the environment. In this research, the possibility of increasing the efficiency of solar cells is investigated. The SCAPS-D simulation is used to investigate the ZnO/ZnS/CNTS solar cell. The practical research is compared with the program, showing that the program simulates the reality due to the high convergence between the practical and theoretical results of the program. By changing the doping ratios of the theoretical cell layers, the cell efficiency shifts from )3.19%( to )9.41%(. The theoretical cell is improved by adding various back reflection layers (BSL), increasing the conversion efficiency from )9.41%( to )11.59%(. After adding more matching layers, the cell's structure becomes ZnO/ZnS/V2O5/CNTS, increasing the conversion efficiency to (14.25%). The ratio of conversion efficiency of ZnS/V2O5/CNTS/CFTS is (17.22%), the filling factor (67.74%), the short circuit current (23.247mA/cm2), and the open circuit voltage (1.0937 V).
Computational docking assisted designing of novel phosphate ester carrier for sulphamethoxazole drug as promising anti-bacterial compounds
Authors: Ali Omeed Akbar , Hameed Ayad Saadi , Algburi Firas Shawqi , TAYSI Seyithan , GULCIN Ilhami
Published: October 2023

Aiming to obtain new anti-bacterial agents, nine novel compounds(8-16) having the same essential moieties (phosphate ester, Schiff base and sulfonamide) were subjected to virtual molecular docking screening to investigate the interaction between these compounds and amino acids existing in the active site of dihydropteroate synthase. compounds (5-7) were synthesized, and on the basis of that, proposals for subsequent compounds were built. Virtual compounds were built based on previously prepared compounds (1-6). Docking score, root mean square deviation (RMSD), hydrogen bond type, Pi-Pi bond, salt bridg, and Pi-Cation, and their distance, bonding site of the target and ligand are calculated. The docking score of all compounds was more than standard drug (sulfamethoxazole), and according to these results, our designing compounds may thus serve as potential anti-bacterial drugs.
Practical study for comparing edge detection filters in digital image processing
Authors: Ibrahim Yahya Ismail , Alhamdani Israa Mohammed
Published: October 2023

Edge detection is a fundamental and important tool in image processing and computer vision. The research topic discusses edge extraction of a digital image using various digital image processing techniques. Digital image edge identification using variety of digital image processing methods. The most popular technique for identifying discontinuities in intensity levels is edge detection. The actual image contains noise that could affect the digital image's quality. Some edge detection filters were used such as Canny, Sobel, and Prewitt. Laplace of Gaussian (LOG) edge recognition, Robert boundary detection, zero edge recognition and analysis. In light of the results of the comparison of edge filters the best edge filter had been obtained. Also, a hybrid method that merges between Canny filter and morphology operations were produced for edge detection. The research aims to reach an appropriate image purification by using different types of filters and to reduce distortions at the edges of the image and to determine which type of filter is the best. As well as, a comparison operation is applied between the traditional method and the hybrid method. Following the results explained by the filters used and displaying the resulting images. The results evaluated from hybrid filter show that this method is optimal than the traditional filters based on the Blind/Reference less Image Spatial Quality Evaluator (BRISQUE) with a value equals 43.43. A smaller score indicates better perceptual quality. Also, the edged images quality consequences from the traditional filters were measured by this metric. The results produced from the traditional filters prove that the best filter for edge image detection is Canny filter based on Blind/Reference less Image Spatial Quality Evaluator (BRISQUE) that reaches 46.01. In addition, the correlation coefficient was estimated to find which of the resulting images are better and closer to the original image. While for correlation coefficient the better filter was Prewitt filter with 0.3133 value. This study program was applied under the MATLAB R2020b system.
Regular divisor graph of finite commutative ring
Authors: Rashid Payman Abbas , Rashid Hataw Saleem
Published: October 2023

Let R be a finite commutative ring with identity 1. We introduce a new graph called regular divisor graph and denoted by . We classify the finite commutative ring to get a special graph and we are going to study some properties of this graph, clique number, chromatic number, number of cycles, connectivity and blocks.
Bifurcation Analysis in a Discrete-Time Prey-Predator System With Crowly- Martin Functional Response
Authors: Muhammed Jaza Omer , Kawa Ahmed Hassan  
Published: October 2023

In this paper, a discrete time prey-predator system with Crowly- Martin functional response was studied. The fixed points of the model are obtained, and their stability is analyzed. Further existence of bifurcation analysis at each fixed points and Hopf bifurcation are demonstrated. Numerical simulation show that the model perhaps have more complex dynamical behaviors, such as the period-5,10,20 and 35 orbits, including the periodic doubling bifurcation in period-2,4,8 and 16 orbits and chaotic set.
Independent Dominating Set on Chain of Fuzzy Graphs
Authors: Russel H. Majeed  , Nabeel E. Arif
Published: October 2023

In this paper, we applied some properties on chain fuzzy graphs, which comprise vertex identification. These properties are independent sets and independent dominant sets.
DETERMINATION OF HEAVY METALS AND TOTAL PETROLEUM HYDROCARBONS IN SOIL SAMPLES AND PLANT LEAVES AROUND OIL REFINERIES LOCATED ON ERBIL-GWER ROAD
Authors: Hama Kareem Karwan K. , Abdulla Siraj S.
Published: October 2023

Several refinery complexes exist in the Kurdistan Region of Iraq that produce various kinds of petroleum products. During the refining process, different types of gases, metals, hydrocarbons, and liquids are discharged into the environment. This study aimed to determine the concentration of eight heavy metals in soil and plant leaves collected around the refineries along Erbil-Gwer Road on two occasions throughout the study period. Additionally, we aimed to evaluate the levels of Total Petroleum Hydrocarbons (TPH) in the soil samples from the area. The results of the analysis revealed significant differences (P<0.05) in the concentrations of Pb, Ni, Cd, Cr, As, and Mn between the dry and wet seasons in the soil samples. However, no significant differences were observed for Cu and Zn between the two seasons. The levels of metals for both periods were as follows: Mn> Cr> Zn> Ni> Cu> Pb> As> Cd in successive forms. Regarding the plant leaves, significant differences (P<0.05) were found between the study periods for Pb, Cu, Zn, and Cd, whereas no significant differences were observed for the other metals. Furthermore, the concentration of TPH in the soil samples located alongside the refinery effluent stream was higher compared to the other areas.
Rancang Bangun Fuzzy-PID Controller pada Ball Balancing Table dengan Universal Joint berbasis NI MyRIO dan LabVIEW
Authors: KHOIRUNNISA HILDA , SURYATINI FITRIA , SUNARYA ADHITYA SUMARDI , RIFAI AFAF FADHIL , MULYADEWI ANGGRAENI , PRASENDA SENDI DIKA
Published: October 2023

ABSTRAKMenyeimbangkan objek dinamis yang tidak stabil adalah salah satu masalah yang paling relevan dalam pembangunan sistem kendali otomatis. Metode ini dapat menghasilkan penelitian tentang efek dari suatu sistem kendali otomatis, atau melakukan pengaturan kendali pada suatu plant. Pada penelitian ini, akan dijelaskan bagaimana merancang sebuah ball balancing table (BBT) dan mengimplementasikan sistem kontrol otomasi ke dalamnya dengan menggunakan metode Fuzzy Logic dan PID Controller. Pada penelitian ini didapatkan kesimpulan bahwa pemasangan kendali Fuzzy Logic dan PID Controller memiliki efektifitas paling bagus dibandingkan dengan kendali close-loop ataupun kendali Fuzzy Logic dan PID Controller yang tidak dipasangkan bersamaan. Penggunaan metode Fuzzy Logic dan PID Controller yang menggunakan parameter trial and error dimana memasukkan nilai tuning manual yang dipasangkan pada ball balancing table dan NI MyRIO yang dirancang menghasilkan lama waktu menuju steady state paling singkat yaitu selama 8,7 detik, overshoot paling rendah, dan error yang hanya sebesar 0,4 terhadap nilai koordinat sumbu X dan sumbu Y.Kata kunci: Ball Balancing Table, Fuzzy Logic, Kontrol PID, NI myRIO ABSTRACTBalancing unstable dynamic objects is one of the most relevant problems in the construction of automated control systems. This methode can provide research on the effects of an automatic control system, or carry out a control arrangement on a plant. In this study, will be explained how to design a ball balancing table (BBT) and implement an automation control system into it using Fuzzy Logic and PID Controls methods. And from this research it is concluded that the installation of Fuzzy Logic and PID Controller control has the best effectiveness compared to close-loop control or Fuzzy Logic and PID Controller that are not installed together. The application of the Fuzzy Logic Controller and PID method paired on the ball balancing table and NI MyRio that was designed resulted in the shortest steady state time of 8.7 seconds, the lowest overshoot, and an error of only 0.4 on the X-axis and Y-axis coordinate values.Keywords: Ball Balancing Table, Fuzzy Logic, PID Controller, NI myRIO
Rancang Bangun Mesin Rotary Dryer Gabah
Authors: IMADUDDIN ILMI RIZKI , BASRI MUHAMMAD HASAN , JANNAH RAUDHATUL
Published: October 2023

ABSTRAKKonsumsi beras di Indonesia meningkat dan petani menghadapi kendala dalam mengeringkan gabah akibat kondisi iklim dan cuaca, sehingga dibuatlah alat pengering gabah. Penelitian ini dilakukan untuk mengetahui rancang bangun pada alat pengering gabah dalam proses pengeringan gabah padi. Metode penelitian yang digunakan adalah metode perancangan mesin pengering gabah tipe Rotary Dryer berbasis photovoltaic. Data yang diperoleh dari uji coba akan dianalisis secara kuantitatif menggunakan metode statistik untuk mengevaluasi kinerja alat pengering gabah. Hasil dari perancangan ini adalah sensor DHT22 pada mesin pengering gabah dapat dikatakan bekerja dengan baik dan normal berdasarkan hasil uji coba penurunan kadar air melalui variasi 1kg, 2kg, 3kg, 4kg, dan 5kg dengan ketentuan waktu dan setpoint suhu yang bervariasi pula.Kata kunci: kadar air, pengering gabah, Photovoltaic, Rotary Dryer, sensor DHT22ABSTRACTRice consumption in Indonesia is increasing, and farmers are facing challenges in drying paddy due to climate and weather conditions. Therefore, a grain drying machine has been created. This research was conducted to determine the design of the grain dryer in the process of drying rice grain. The research method used is the method of designing a photovoltaic-based Rotary Dryer type grain drying machine. The data obtained from the experiment will be quantitatively analyzed using statistical methods to evaluate the performance of the grain drying tool. The result of this design is that the DHT22 sensor on the grain drying machine can be said to be working properly and normally based on the results of trials for reducing the water content through variations of 1kg, 2kg, 3kg, 4kg and 5kg with varying time and temperature setpoints.Keywords: moisture content, grain dryer, Photovoltaic, Rotary Dryer, DHT22 sensor
Analisis Dampak Kebijakan Implementasi PLTS Atap pada Gedung Pemerintah menggunakan Skenario Proyeksi
Authors: ILHAM RICHI , BATIH HAKIMUL
Published: October 2023

ABSTRAKPemerintah masih tetap akan melakukan implementasi PLTS Atap pada 30% dari luas atap bangunan/gedung pemerintah sedangkan implementasi peraturan Menteri ESDM tentang PLTS Atap yang masih tertunda atau tidak maksimal dikarenakan ketidakpastian yang tinggi dari dampak implementasinya atas demand PLN. Terkait itu perlu dilakukan analisis skenario proyeksi pertumbuhan PLTS Atap pada Gedung pemerintah menggunakan pendekatan pertumbuhan PLTS Atap di Asia menjadi empat skenario proyeksi dengan kombinasi tahun awal implementasi (laju pertumbuhan) yaitu : 2026 (8,88%), 2031 (26,91%), 2032 (13,11%) dan 2022 (mengikuti pertumbuhan pelanggan). Dari hasil perhitungan potensi untuk pelanggan PLN P1 mulai dari 2.567,32 MWh hingga 757.816,08 MWh dan Pelanggan PLN P2 sebesar 884,82 MWh hingga 20.331,10 MWh. Dampak terhadap demand PLN khususnya pelanggan P1 dan P2, dari seluruh skenario mengakibatkan pelanggan dapat memenuhi kebutuhan listriknya secara mandiri pada beberapa tahun setelah implementasi sebelum tahun 2050 kecuali pelanggan P1 untuk skenario 3.Kata kunci: Demand, Gedung Pemerintah, PLTS Atap, Skenario Proyeksi ABSTRACTThe government plans to install Rooftop Solar PV on 30% of government buildings' roof areas, but the implementation of regulations by the Minister of Energy and Mineral Resources is delayed, leading to uncertainty about its impact on PLN's electricity demand. Therefore, an analysis of Rooftop Solar PV growth scenarios is necessary. Four projection scenarios are considered: 2026 (8.88% growth rate), 2031 (26.91% growth rate), 2032 (13.11% growth rate), and 2022 (following customer growth). Calculations indicate the potential Rooftop Solar PV capacity in government buildings for PLN P1 customers ranges from 2,567.32 MWh to 757,816.08 MWh, and for PLN P2 customers, it ranges from 884.82 MWh to 20,331.10 MWh. The impact on PLN's demand, particularly for P1 and P2 customers, suggests that they will be able to meet their electricity needs independently for several years after implementation, except for P1 customers in scenario 3, until 2050.Keywords: Demand, Government Building, PV Rooftop, Projection Scenario
Pemodelan Klasifikasi Lama Waktu Pencapaian Jabatan Fungsional Lektor Kepala menggunakan Optimizer Parameter Support Vector Machine
Authors: SUPRIYADI ANDY , SAFI'IE MUHAMMAD ASRI
Published: October 2023

ABSTRAKPemenuhan dosen dengan jabatan fungsional lektor kepala dan guru besar menjadi sangat penting dalam memperoleh akreditasi unggul bagi perguruan tinggi. Salah satu upaya pemenuhan dengan melakukan klasifikasi dosen dari sisi lama waktu pencapaian jabatan fungsional lektor kepala dari lektor pada Universitas Sebelas Maret dibagi menjadi tiga, yaitu cepat, sedang, dan lambat. Variabel yang digunakan dalam klasifikasi antara lain usia, tempat studi, lama studi, international research, sertifikasi dosen, jabatan structural dan bidang ilmu dari staf pengajar. Penelitian ini melakukan klasifikasi menggunakan algoritma Support Vector Machine dengan dataset sejumlah 520 data. K-fold Cross Validation digunakan untuk membagi dataset menjadi data latih dan data uji, dengan k=5. Hasil pengujian model diperoleh rata-rata akurasi terbaik menggunakan Support Vector Machine sebesar 86.39% dengan Optimizer Parameter sedangkan rata-rata akurasi Support Vector Machine tanpa parameter sebesar 80.92%.Kata kunci: klasifikasi, jabatan fungsional, Support Vector Machine, K-fold Cross Validation ABSTRACTThe fulfillment of lectures on achieving associate professor and professor position holds tremendous significance for gaining excellent institution Accreditation Predicate. Sebelas Maret Univesity took measures to achieve this objective by carrying out thorough the classification on the length of achieving associate professor from instructor position and split into 3 grades namely fast, medium and slow. The features used for conducting the classification are age, place of study, the length of the study, the amount of international publication, lecturer certification, lecturer’s structural position and field of study. In this study, the Support Vector Machine algorithm was utilized to classify a dataset consisting of 520 data. To ensure reliable results, K-fold Cross Validation was applied to divide the dataset into training and test data, with k=5. The evaluation of the model's performance revealed that the Support Vector Machine achieved an impressive average accuracy of 86.39%. In contrast, the average accuracy of the Support Vector Machine to 80.92% without parameters.Keywords: classification, associate lectures position, support vector machine, K-fold Cross Validation
Antena Mikrostrip Multilayer Parasitik pada Frekuensi C Band Radar Cuaca
Authors: MADIAWATI HANNY , RAHMANSYAH RIDWAN , SIMANJUNTAK ASEP BARNAS
Published: October 2023

ABSTRAKRadio Detection and Ranging (RADAR) merupakan teknologi yang berfungsi untuk mendeteksi, mengukur jarak dan memetakan objek. Salah satu jenis sistem radar adalah sistem radar cuaca yang mempunyai frekuensi C band dengan rentang 5.250 – 5.725 GHz. Komponen utama dalam sistem radar adalah antena. Antena mikrostrip memiliki ukuran kecil, tipis dan mudah diintegrasikan. Namun memiliki masalah bandwidth yang rendah yaitu sebesar 3-5%. Untuk meningkatkan bandwidth antena mikrostrip ini digunakan metode multilayer parasitik. Pada penelitian ini berhasil diperoleh peningkatan bandwidth pada hasil simulasi sebesar 7.1%. Sedangkan setelah realisasi diperoleh peningkatan bandwidth sebesar 39.6%. Pada hasil realisasi antena mikrostrip multilayer parasitik pada frekuensi C band radar cuaca diperoleh hasil pengukuran band frekuensi 5.187 – 5.912 GHz, bandwidth 725.8 MHz, gain 6.99 dB dan pola radiasi unidireksional.Kata kunci: Antena Mikrostrip, C Band, Multilayer, Parasitik, Radar Cuaca ABSTRACTRadio Detection and Ranging (RADAR) is a technology that functions to detect, measure distance and map objects. One type of radar system is a weather radar system that has a C band frequency with a range of 5,250 - 5,725 GHz. The main component in a radar system is the antenna. Microstrip antennas are small, thin and easy to integrate. However, it has a low bandwidth problem of 3-5%. To increase the bandwidth of this microstrip antenna, the parasitic multilayer method is used. In this study, an increase in bandwidth was successfully obtained in simulation results of 7.1%. Meanwhile, after realization, an increase in bandwidth of 39.6% was obtained. In the realization of the parasitic multilayer microstrip antenna at the C band frequency of the weather radar, the measurement results of the frequency band 5.187 - 5.912 GHz, bandwidth 725.8 MHz, gain 6.99 dB and unidirectional radiation pattern were obtained.Keywords: Microstrip Antenna, C Band, Multilayer, Parasitic, Weather Radar
Pemantauan dan Pengendalian Nutrisi pada Tanaman Hidroponik Sistem Wick berbasis IoT
Authors: ANDRIANTO HERI , SURYANINGSIH SURYANINGSIH
Published: October 2023

ABSTRAKKebutuhan pangan yang terus meningkat, namun lahan pertanian yang semakin berkurang masih menjadi masalah. Salah satu solusi masalah tersebut yaitu dengan bercocok tanam secara hidroponik. Pada makalah ini telah dikembangkan sistem pemantauan dan pengendalian nutrisi pada tanaman hidroponik sistem wick berbasis IoT menggunakan NodeMCU. Pemantauan dan pengendalian nutrisi dilakukan melalui aplikasi smartphone android yang dibangun menggunakan MIT App Inventor. NodeMCU dan aplikasi smartphone android terhubung dengan realtime database Firebase. Pada makalah ini diamati juga hubungan antara kadar nutrisi dengan indeks klorofil daun tanaman pakcoy untuk mengetahui status nitrogen tanaman pakcoy. Dari hasil pengujian didapatkan hubungan nilai kadar nutrisi dengan indeks klorofil yaitu y = 0.0187x + 22.654 dengan nilai x sebagai nilai kadar nutrisi (ppm) dan y sebagai indeks klorofil (SPAD) dengan koefisien determinasi sebesar 0.9343. Error pembacaan kadar nutrisi menggunakan sensor Total Dissolved Solid (TDS) dibandingkan dengan TDS meter berkisar antara 0% sampai dengan 6%.Kata kunci: Firebase, hidroponik, IoT, klorofil, smartphone android ABSTRACTThe need for food continues to increase, but agricultural land is decreasing, which is still a problem. One solution to this problem is hydroponic farming. In this paper, a system for monitoring and controlling nutrients has been developed for wick system hydroponic plants based on IoT using NodeMCU. Nutrition monitoring and control is carried out through an android smartphone application built using the MIT App Inventor. NodeMCU and the android smartphone application are connected to the Firebase realtime database. This paper also examines the relationship between nutrient levels and the chlorophyll index of the pakcoy plant leaves to determine the nitrogen status of pakcoy plants. From the test results, it was found that the value of the nutrient content was related to the chlorophyll index, namely y = 0.0187x + 22.654, with the x value as the nutrient content value (ppm) and y as the chlorophyll index (SPAD) with a determination coefficient of 0.9343. The error in reading nutrient levels using a TDS sensor compared to a Total Dissolved Solid (TDS) meter ranges from 0% to 6%.Keywords: Firebase, hydroponics, IoT, chlorophyll, android smartphone
Optimasi Kendali Ketinggian Air dengan Kontroler Fuzzy PID dalam Menghadapi Variabel Gangguan
Authors: SURYATINI FITRIA , SUPRIYANTO HADI , ROKHIM ISMAIL , MARTAWIREJA ABDUR ROHMAN HARITS , HUSEN AHMAD
Published: October 2023

ABSTRAKKendali ketinggian air merupakan suatu sistem yang sering ditemukan di sebagian besar fasilitas industri. Kendali ketinggian air seringkali dihadapkan pada gangguan yang disebabkan perubahan aliran masuk serta perubahan laju pengeluaran air. Penelitian ini bertujuan untuk meningkatkan kendali ketinggian air dalam sistem dengan kendali Fuzzy PID dalam menghadapi variasi gangguan berupa perubahan laju pengeluaran air, serta mengimplementasikan pada kontroler PLC. Penelitian ini melibatkan pengujian kendali Fuzzy PID dan kendali PID dengan metode tuning Ziegler-Nichols 1. Variasi gangguan berupa keluaran pompa DC yang bisa diatur kecepatannya dari Output DA PLC resolusi 0-6000 yang dikonversi menjadi 0-100%. Hasil penelitian menunjukkan Fuzzy PID dapat diimplementasikan pada PLC dengan hasil yang minim overshoot, settling time yang lebih pendek rata-rata 17.23 detik sedangkan PID rata-rata 78,4 detik dan terdapat overshoot. Namun, Fuzzy PID cenderung memiliki rise time lebih lambat 1-2 detik daripada kendali PID.Kata kunci: PLC, Fuzzy PID, PID, Water Level, Ziegler-Nichols ABSTRACTWater level control is a system that is often found in most industrial facilities. Water level control is often faced with disturbances caused by changes in the inflow and changes in the rate of discharge of water. This study aims to improve the control of the water level in a system with Fuzzy PID control in dealing with variations in disturbances in the form of changes in the rate of water discharge, and to implement it on the PLC controller. This study involves testing Fuzzy PID control and PID control using the Ziegler-Nichols 1 tuning method. The disturbance variation is in the form of a speed-adjustable DC pump output from the PLC DA Output with a resolution of 0-6000 which is converted to 0-100%. The results showed that Fuzzy PID can be implemented on PLCs with minimal overshoot results, shorter settling time with an average of 17.23 seconds while the average PID is 78.4 seconds and there is overshoot. However, Fuzzy PID tends to have a slower rise time of 1-2 seconds than PID control.Keywords: PLC, Fuzzy PID, PID, Water Level, Ziegler-Nichols