bluuebunny/crossref_metadata_2025 huggingface dataset:
Towards Linguistically-Responsive Literacy Assessments in Bilingual Children: Establishing an Urdu Phonological Tele-Assessment Tool (U-PASS)
Authors: Bhalloo Insiya , Molnar Monika
Published: July 2023

Childhood literacy contributes to future academic and socio-economic success; it is therefore important to provide early reading intervention. Successful intervention hinges on early assessment. Speech-language pathologists and educators use early literacy precursor assessment tools to identify children at risk for future reading difficulties. Phonological processing is one of these precursors commonly assessed with monolingual and bilingual children. However, there is a clear English-language assessment bias when it comes to these tools, which impacts clinical and research practices. To address this bias, we developed an age- and linguistically-appropriate Urdu Phonological Tele-Assessment tool (U-PASS) across three phases: (1) Item & Subtest Structure Development, (2) Item Revisions, and (3) Tool Evaluation, including subtest and item-level analyses based on average accuracy rates and discrimination power. We also examined the U-PASS tool’s criterion-based concurrent validity in relation to the Urdu word/non-word reading accuracy skills of 115 typically-developing Urdu-English simultaneous bilinguals in Grades 1-2 across Canada and Pakistan. Linear regression analyses indicate significant phonological processing-reading correlations after accounting for expressive vocabulary, language background and demographic factors, thereby demonstrating tool concurrent validity. This open-access tool will facilitate literacy assessment in under-investigated heritage languages commonly spoken by bilinguals, and promote literacy accessibility globally.
HIERARCHY AND THE CASE OF INDIAN ACADEMIA
Authors: Chaube Pragya , Koley Moumita
Published: July 2023

Universities and research institutions perpetuate rigid academic hierarchies for a variety of reasons, including tradition, the need for clear lines of authority, and the belief that it is necessary for efficient functioning. However, organizational structure and culture are known to have a huge impact on productivity. Traditional academic hierarchical structures in academic institutions can have negative effects, such as hindering the free flow of ideas, limiting opportunities for junior faculty, and creating a culture of competition rather than collaboration. Here, we delve into the consequences of the rigid hierarchical system on academic research and put it in the Indian context.
Addressing Health Information Inequities by Connecting Future Health Professionals to Sources of Accurate Consumer Health Information
Authors: Greenberg Charles J , McIntyre Micki
Published: July 2023

Just as there are healthcare inequities that perpetuate illness and premature mortality, health information inequities can lead to inaccurate beliefs, wasted income, and behavioral choices with negative health consequences. Medically underserved areas around the globe also have limited ways that health consumers receive accurate and timely health information, and the distribution of misinformation about health has become prevalent and expected. The New Jersey Area Health Education Center (NJ AHEC) Scholars Program at the Rowan-Virtua School of Osteopathic Medicine is a longitudinal, interdisciplinary program for students of the health professions that prepares them for their health profession in underserved community health settings. As future health professionals, AHEC Scholars are a potential source for and distributor of accurate consumer health information. Health sciences librarians created a project to demonstrate this potential in the Spring of 2021, supported by extramural funding by the National Network of Libraries of Medicine Region 1 Medical Library at the University of Pittsburgh. Two AHEC Scholar student cohorts received virtual workshops and curated packet of consumer health pocket cards and handouts. The health information literacy training provided by Library staff has become part of the AHEC Scholars program.
Evaluation of Project Implementation Road and Bridge Improvement Pen (National Economic Recovery) Program in Central Lombok District
Authors: Barokah Johan Zamroni , Murtiadi Suryawan , Ngudiyono .
Published: July 2023

The Road and Bridge Improvement Project through the National Economic Recovery Program (PEN) in Central Lombok Regency experienced delays in the completion of the work, which resulted in an extension of the implementation time. To find out the cause of the delay, a more detailed and in-depth evaluation is needed. Evaluation is carried out on discrepancies that occur in project implementation by assessing and comparing the results of implementation with the initial objectives of the project. Identification and examination of basic events that cause non-conformities analyze using the Fault Tree Analysis (FTA) method. The results of the evaluation concluded that the results of the project implementation were not in accordance with the stated objectives. Discrepancies occur in indicators of implementation time, for indicators of cost and quality in accordance with project objectives. Based on the FTA analysis, there are three factors that are specifically the cause, namely the condition of the work location, delays in the supply of materials, and social factors. There are 18 basic events that result in the appearance of the three non-conformance factors.
Metode Index Card Match Terhadap Peningkatan Hasil Belajar Peserta Didik Pada Mata Pelajaran Al-Qur’an Hadits Di Madrasah Ibtidaiyah
Authors: Yani Waode
Published: July 2023

This study aims to improve learning outcomes of Al-Qur'an Hadith for students at MI Wandoka through the application of the Index Card Match learning model. This research employs classroom action research (CAR), which is carried out in 2 cycles, for fourth grade students in the even semester of the 2019/2020 school year. The instruments used are documentation, learning outcomes tests, teacher and student observation sheets. The research procedure consists of planning, implementing actions, observing, evaluating and reflecting. The results showed that the application of the Index Card Match learning model could improve student learning outcomes at MI Wandoka. The average score of students in the pre-cycle reached 59.14 with a learning completeness of 23.80%. After the first cycle of action, learning completeness reached 52.38% with an average value of 63.80. Then in the second cycle, learning completeness reached 80.95% with an average value of 71.90.Keywords: Index card match learning model, learning outcomes of Al-Qur'an Hadith, elementary school
Meningkatkan Kemampuan Geometri dengan Media Alam Sekitar Pada Anak Kelompok B Di PAUD Sultan Qaimuddin Kendari
Authors: Fauzana Akhmad Amar , Shaleh Muh.
Published: July 2023

This study aims to determine whether there is an increase in geometric ability through natural media in group B students at the Sultan Qaimuddin Early Childhood Education School (PAUD) Kendari. This research is in the form of classroom action research (CAR). Each cycle consists of four stages: the planning stage, the implementation stage, the observation stage, and the reflection stage. The subjects of this study were 15 children of group B at the early childhood education school of Sultan Qaimuddin Kendari for the 2018/2019 academic year, which consisted of 6 boys and 9 girls. The data were collected using observation sheets, documentation and tests. The results determined that the acquisition of geometrical ability completeness values increased at each stage where the acquisition of pre-action was 26.67%, increased to 60% in cycle I activities and achieved 80% in cycle II. In other words, the implementation of activities in improving geometric abilities by using natural media around can be carried out adequately and optimally for group B students of PAUD Sultan Qaimuddin Kendari.Keywords: Geometry, early childhood, nature media
Inflación global y cambios en las tasas de interés de política monetaria de los bancos centrales de las economías de EE. UU., Unión Europea y Perú
Authors: Morales Romero Juan Roberto , Esteban Espinoza David , Castro Montenegro Victor , Manchego Guerra Jose Renatto
Published: July 2023

Objetivo: Analizar y describir la evolución de la inflación y tasas de interés de política monetaria de los bancos centrales de las economías de EE. UU., Unión Europea y Perú en el contexto de inflación global. Métodos: El enfoque de investigación es cuantitativo de tipo longitudinal, documental, comparando con información del IPC y tasas de interés de política monetaria de la actividad económica de EE. UU., Unión Europea y Perú desde enero 2021 a diciembre de 2022 de fuentes secundarias oficiales y privadas. Resultados: En cuanto a las economías de EE. UU., Unión Europea y Perú se encontró una relación directa y positiva entre la tasa de inflación interanual y las tasas de interés de política monetaria en contexto de altas tasa de inflación global con un significativo coeficiente de asimetría positiva en las tasas de interés de política monetaria de la FED, del BCE y del BCRP con las tasas de inflación anualizadas de las economías de estudio. Conclusiones: La política monetaria restrictiva de los bancos centrales FED, BCE y BCRP consistente en subidas agresivas y graduales de sus tasas de interés de política monetaria tienen como finalidad la reducción de la tasa de inflación interanual a la meta de estabilidad de precios frente a un desanclaje de las expectativas de inflación en un escenario de inflación global por factores de oferta o de demanda.
Experimental investigation of the effectiveness of local application of a combination of antiseptic and anesthetic on the model of contaminated wound
Authors: Babina Yuliana
Published: July 2023

Annotation. A high risk of infections in surgery is associated with microbial contamination with opportunistic microorganisms Staphylococcus aureus. Objective: to study the antimicrobial and analgesic effect of decamethoxine combined with lidocaine applied locally to the model of a postoperative infectious wound. Fifty-two male rats weighing 250-300 grams were randomly divided into four groups. We modeled surgical wounds in the interscapular area, and then injected a suspension culture of S. aureus 47 (dose 108 CFU/ml) into the wounds. On the 2nd, 3rd, 7th and 10th day of the experiment, the wounds contaminated with staphylococcal culture were treated with 3 ml doses of the tested drugs: 0,9% saline in the control group (group A, n=13), 0,02% decamethoxine antiseptic (DCM) (group B, n=13), 10% lidocaine (group C, n=13) and their combination in the 1:1 ratio (group D, n=13). On days 3, 7 and 10, the wound area in each group was determined using contour planimetry by the L.N. Popova method and the average area (M±m) and the percentage of reduction in wound area from the initial size were calculated. The antimicrobial efficacy of the antiseptic and anesthetic was evaluated on days 3, 5, 7 and 10 using a standard microbiological study of the number of microorganisms in the wounds, the numerical values of which were expressed as the decimal logarithm of colony-forming units per ml (lg CFU / ml). To study the analgesic activity of DCM and 10% lidocaine in animals, the minimum threshold of pain sensitivity in the wound was determined using calibrated Von Frey monofilaments (VFMs). Statistical processing was performed using standard biometric methods. Differences at p<0.05 were considered significant. Results: As a result of microbiological examination of the wound surface, it was found that the number of S. aureus on the wound surface significantly decreased on the 5th day when using decamethoxine alone and in combination with lidocaine 10%. The use of antiseptic and its combination with lidocaine on the 10th day revealed almost complete eradication of S. aureus on the wound surface compared to the control group (p<0.01). When applying the combined antiseptic with lidocaine, it was found that the threshold of pain sensitivity increased by 12.2 times, which was practically no different from that of lidocaine monotherapy (11.9%). It was found that the healing and wound epithelization rate was the highest in group D (71.12% of the baseline). So, the combination of antiseptic with lidocaine 10% in the treatment of wounds has a high antimicrobial efficacy with a pronounced anesthetic effect. Thus, it opens the prospect of combined local use of antiseptic and anesthetic in the treatment of wounds.
Morphology of the heart during the period of progressive growth in conditions of prolonged exposure to low temperatures
Authors: Logvinenko V. , Tykholaz V. , Bashynska E. , Franchuk S. , Bulko I.
Published: July 2023

Annotation. The aim of the research is to study the cardiac morphology during the period of growth under prolonged exposure to low temperatures. The main group consisted of outbred white rats (260 males and 190 females) undergoing active development, aged 4 weeks at the beginning of the experiment, and was kept in a room with an air temperature of +4±1 °C. The control group of animals was kept in a room with an air temperature of +20±10 °C. The experiment lasted for sixteen weeks. Research methods: macromorphometric study of the heart, histological study of paraffin sections, and ultrastructural study. Micromorphometric study was performed on semi-thin sections stained with 0.1% solution of toluidine blue at an ocular magnification of 10 and objective of 90, using a multi-purpose test system of short segments (Weibel grid) and an automatic analyzer of microscopic images “Integral-2MT”. PAS stain by A.L.Shabadash was used to detect glycogen, and the number of glycogen granules per unit area was counted on electronograms at a magnification of 20000 using a 1 cm2 area square. The stereological study of the electronograms was carried out at a magnification of 8000 using a Weibel grid. The statistical processing of the obtained results was carried out using the SPSS statistical program package, STATISTICA v. 10.0. It was found that the adaptation of the myocardium to the cold occurs according to the universal mechanism of adaptation to various extreme conditions associated with a deficit of energy metabolism. Therefore, the effect of cold can be regarded as non-specific. Based on the conducted research, the following stages of the adaptation process are defined: 1) short-term stress reaction (first 5 days); 2) myocardial hypertrophy (from 2nd to 6th weeks); 3) long-term, stable adaptation (more than 6 weeks). Morphological criteria for myocardial adaptation to long-term cold exposure have been identified: 1) physiological hypertrophy of the myocardium, mainly of the right ventricle; 2) the energy reserve of cardiomyocytes in the form of mitochondrial hyperplasia and glycogen accumulation. We plan to study the microcirculatory bed of the myocardium during the adaptation of the body to prolonged action of low temperature in the future.
Modeling of individual teleroentgenometric indicators using the COGS method in Ukrainian young men with a wide face type
Authors: Nesterenko Ye. A. , Shinkaruk-Dykovytska М. М. , Shevchuk Yu. G. , Lysenko S. A. , Cherkasova L. А.
Published: July 2023

Annotation. Cephalometric techniques for the analysis of lateral teleroentgenograms, for successful use in orthodontist practice, require a preliminary clinical study, which should include as many healthy individuals as possible from the local population for which this technique will be applied. The purpose of the study is to build and analyze regression models of radio-radiographic parameters used in COGS-methodology in Ukrainian young men with an orthognathic bite with a wide face type. 22 Ukrainian young men with an orthognathic bite and a wide face type underwent a cephalometric study using the COGS method. For the correct modeling of cephalometric characteristics, the division of teleroentgenometric indicators into three groups proposed by M. O. Dmitriev (2016, 2017) was used: the first group is the metric characteristics of the skull, which usually do not change during surgical and orthodontic treatment; the second group – indicators of the maxillofacial system, which can be used to change the width, length, angles and position of the upper and lower jaws with the help of orthognathic surgery; the third group – indicators that actually characterize the position of each individual tooth relative to each other, cranial structures and the profile of the soft tissues of the face. Construction of regression models of cephalometric indicators according to the COGS method was carried out in the “Statistica 6.0” license package. It was established that only 4 reliable regression models of teleroentgenometric indicators with a coefficient of determination greater than 0.6 were built using the COGS method for Ukrainian young men with a wide face, which were included in the second and third groups depending on the indicators of the first group (R²= from 0.626 to 0.780 ), as well as 11 reliable models of indicators were built out of 19 possible, which were included in the third group depending on the indicators of the first and second groups (R²= from 0.626 to 0.970). The analysis of the constructed regression equations showed that most often the models of indicators that were included in the second and third groups, depending on the indicators of the first group, include the value of the distances P-PTV (17.64 %) and N-Se (11.76 %) and the value of the angles H (17.64 %) and N-S-Ba (11.76 %); and to the indicator models that were included in the third group depending on the indicators of the first and second groups – the value of the distances ANS-Me (15.00 %), A-B and N-Pog (7.50 % each) and the value of the angles Ar-Go-Gn, H and N-A -Pog (7.50 % each). Further research will make it possible to develop a computer program that will enable dentists to automatically calculate individual normative teleroentgenometric indicators.
Lipolytic activity of Malassezia spp. on inflamed seborrheic areas increases after exposure to beta-endorphin
Authors: Vysochanska V. V. , Koval G. M.
Published: July 2023

Annotation. The opiate system of the skin modulates inflammation and regeneration, while metabolic products of some bacteria and fungi disrupt the skin barrier and cause inflammation. Therefore, the study aimed to evaluate the effect of beta-endorphin (BE) on the lipolytic activity (LA) of Malassezia spp. isolated from both seborrheic areas and healthy skin of patients with seborrheic dermatitis. The study included 42 patients with moderate and severe forms of SD, with positive growth of Malassezia spp., and 17 medical workers without any skin diseases constituting the control group. Two smears were taken from the SD patients: from the face, specifically inflamed areas affected by SD, and intact skin of the sternum. Samples were transferred to MLNA (37°C; 72 h), colonies were suspended in Dixon broth, and 500 nmol/L human BE was added (3 days; 32 °C). 1 ml of the suspension was then applied to yolk agar (7 days; 35 °C). The precipitation zone was considered a sign of the presence of LA. The following statistical research methods were used: chi-square test, Mann-Whitney t-test, and Student’s test. Half of the Malassezia spp. isolated from healthy individuals did not show any LA before and after BE exposure. 69% of samples obtained from healthy areas and 95% of samples from inflamed skin areas from SD patients had LA. After BE stimulation, all samples from healthy areas of SD patients had LA. In healthy individuals, the average value of the LA did not show a significant difference after BE exposure (0.99 (0.99-1.00) vs 0.95 (0.92-0.97) p=0.358). In patients with SD, the intensity of lipolysis significantly increased. In samples obtained from healthy areas, the difference in LA was smaller than in samples from inflamed skin areas (0.06 p≤0.031; 0.22 p≤0.001). However, when comparing the intensity of LA in samples from healthy areas of SD patients and healthy individuals, no significant difference was found either before or after BE stimulation (0.91 (0.86-0.95) vs 0.95 (0.92-0.97) p=0.173). It was established that BE increases the LA of Malassezia spp., which colonizes the inflamed skin areas of patients with SD. Further research using opioid receptor blockers for the treatment of seborrheic dermatitis would be a logical next step.
Treatment tactics for patients with combined kidney tumor and urolithiasis (clinical cases)
Authors: Slobodyanyuk V. A. , Sosnin M. D.
Published: July 2023

Annotation. Global medical literature shows an ever-increasing number of patients suffering from urolithiasis and malignant kidney tumors. The number of patients suffering from both conditions also seems to be on the rise. Correlation and interdependence, as well as the preferable course of treatment for these diseases, remain uncertain. The present study aims to map out treatment strategies for patients presenting with both urolithiasis and kidney tumor. In 2013- 2021 21 patients with urolithiasis and kidney tumor were examined and treated in the SI “Acad. O.F. Vozianov Institute of Urology NAMS of Ukraine”. In 61.9% of cases a tumor and calculi were located unilaterally, in 14.3% contralaterally, and in other 14.3% tumor was comorbid with bilateral urolithiasis. 4.75% of patients had a tumor combined with a stone in the upper third of the ureter on the same side, and 4.75% – in the lower third of the ureter on the opposite side. Depending on the localization of a tumor and a stone, the stage of the oncological process, the presence of metastases, clinical manifestations, etc, different treatment tactics have been employed. Simultaneous removal of a kidney tumor and a stone in case of their ipsilateral location was performed in 52.4% of patients. We prioritized organ-sparing surgery in all cases. 9.52% of patients underwent PNLT before the tumor removal. In 9.52% of patients ureterolith removal was followed by kidney tumor removal. 71.4% of patients underwent successful laparoscopic resection of a tumorous kidney, but in 28.6% of patients, attempts to save the organ failed. So, types of combinations of urolithiasis and kidney tumor can be different, hence, it is necessary to apply individual treatment tactics in each case. If the functional state of a tumorous kidney and technical capacity allow it, organ-sparing surgery is highly advisable.
The effect of statin therapy on the elastic properties of blood vessels in patients with arterial hypertension
Authors: Zolotaryova N. A. , Gunenko I. I.
Published: July 2023

Annotation. It is common knowledge that the elastic properties of blood vessels change with age. Many domestic and foreign authors acknowledge the impact of the increase in stiffness and decrease in elasticity of large arteries on the pathogenesis of most cardiovascular diseases, particularly in the development of arterial hypertension. The aim is to evaluate the comparative effectiveness of atorvastatin and rosuvastatin on vascular stiffness in patients with arterial hypertension. 75 patients with arterial hypertension aged 44.4±0.99 years were examined. 15 apparently healthy individuals were selected for the control group. All patients were divided into 3 groups depending on the therapy. Pulse wave velocity (PWV) measurements were performed twice using the generally accepted carotid-femoral technique. The inclusion criteria for participation in the study were: patient age up to 59 years; arterial hypertension of the I and II degrees. Statistical data processing was carried out using the Statistica 10.0 program. The significance of the differences between the groups in quantitative terms was assessed using the Student's t-test. In all the studied groups, the initial index of PWV exceeded its norm. Against the background of treatment, a significant decrease in this indicator was observed in all 3 groups. The most positive effect was obtained in patients who additionally received statins. Rosuvastatin showed the best results. Thus, the modern strategy of treating patients with arterial hypertension should also be aimed at achieving regression of vascular remodeling. The use of statins improves the elastic properties of blood vessels.
Conducting practical classes in medical chemistry during distance learning
Authors: Smirnova O. V. , Sulim O. G.
Published: July 2023

Annotation. The purpose of this work was to share the experience of working with students in the conditions of distance learning. Practical classes in medical chemistry consist of theoretical and practical parts. Theoretical concepts reveal the essence of physical and chemical phenomena, which must be confirmed by practical works. Practical (laboratory) classes are one of the most important forms of the educational and pedagogical process, during which students acquire the skills of experimental work, the ability to work with devices, independently draw conclusions from the obtained data, which determines the in-depth assimilation of the theoretical material of the discipline. Experiments should be clear and convincing, and confirm theoretical concepts. But modern conditions (quarantine, military actions, blackouts, air raids) call for adjustments to the educational process. It is necessary to organize the educational process in such a way as to give students exhaustive knowledge within the scope of the program. Lectures should carry the maximum amount of information necessary for the assimilation of theoretical material and the possibility of using it to explain processes in a living organism. Practical works should form students' creative approach to certain phenomena, abilities and skills of independent search, analysis and evaluation of information.
Quantitative determination of potassium ions by flame photometry in the drug “Panangin”
Authors: Yushchenko T. I. , Morozova L. P.
Published: July 2023

Annotation. Determination of the quantitative content of potassium ions by flame photometry in the drug “Panangin”® produced by “Gedeon Richter” Plc (Hungary) and study the accuracy of this method by calculating the measurement error. The drug “Panangin”® was used in the form of film-coated tablets. The filtrate was quantified with potassium ions on a BWB-XP flame photometer using a propane-butane mixture. Calibration of the device was performed using solutions of potassium chloride of the following concentrations: 1,00, 10,00, 25,00 and 50,00 mg / l, the reference solution was deionized water. The quantitative content of potassium ions was measured using flame photometry. The proposed method of quantitative determination of K+ ions in the drug “Panangin”® belongs to the analytical and pharmaceutical chemistry and is intended for quality control of drugs containing potassium. According to the results of the study, we can see that the method of flame photometry gives reproducible results.
Comparative analysis of the medical guarantees program packages in the field of “Oncology”
Authors: Husak N. B. , Zub V. O. , Kotuza A. S.
Published: July 2023

Annotation. The approaches implemented in the National Health Service of Ukraine (NHSU) for entering interactions or treated cases into packages in the field of “Oncology”, as well as the system of their financing, need constant improvement. The aim of the study is to assess the main inconsistencies and inaccuracies in the existing grouping rules regarding treated cases/interactions in packages in the field of “Oncology” and to formulate proposals for improving the Medical Guarantees Program in the field of “Oncology” based on the findings. A descriptive-analytical study was conducted for 8 months of the year 2022 comparing clinical approaches and compliance with the rate for medical services provided to patients with oncological and oncohematological diseases within the oncology packages of the Medical Guarantees Program with a comparison to Australian coding standards. As a result of the analysis, certain problems were revealed in the existing grouping rules regarding treated cases/interactions in the packages in the field of “Oncology”: unclear criteria for the inclusion of a case in the package, particularly the inclusion of diagnoses that are not related to malignant neoplasms; duplication of diagnoses in packages, which contributes to double/triple funding of the case; lack of medical and automatic monitoring for the correct coding of the main diagnosis and interventions; lack of ongoing analysis of services provided in outpatient settings from the point of view of their compliance with the rate, as well as failure to apply timely preventive measures. The proposed ways of improving the Medical Guarantees Program in the field of “Oncology” will allow to improve the equipment of diagnostic and treatment units for providing medical service to cancer patients due to the use of released/saved funds, which will lead to an increase in the survival rate of patients, timely diagnosis of cancer in the early stages and prevention of new cases of oncological diseases.
Considering Local Government Policies Related to Madrasah Diniyah Takmiliyah in Indonesia
Authors: Ashari Muhammad Khakim , Faizin Moh , Yudi Usman , Aziz Yahya , Irhamni Hadi , Athoillah Sukijan
Published: July 2023

The implementation of madrasah diniyah takmiliyah (MDT) is very dynamic in its history, established before this country was not born until now it still exists in the midst of community life and has contributed a lot to the nation as an institution that concentrates on Islamic studies. Although it has been established for a long time, madrasah diniyah has only recently received recognition from the government through the issuance of Law No. 20 of 2003 concerning the national education system and also the issuance of Government Regulation No. 55 of 2007 concerning religious education and religious education. This study examines local government policies related to the implementation of madrasah diniyah takmiliyah as part of the implementation of these two government policies. This study uses a systematic literature review (SLR) approach, which is a method used to identify, verify and classify relevant data findings into discussion themes. The result of this study is that the policies that have been established by the government have not fully guaranteed the vital role of the government (central and local) towards the implementation of education in madrasah diniyah, the lack of government attention is one of the reasons for the lack of development of MDT until now. In some regions, there is a policy to integrate MDT into formal schools, this aims to increase the role and existence of MDT and affirm its role as an Islamic educational institution that produces religious and characterized graduates.
PENGARUH PEMERAMAN DAN PERSENTASE ABU SEKAM PADI PADA STABILISASI LEMPUNG EKSPANSIF TERHADAP INDEKS PLASTISITAS DAN NILAI CBR
Authors: Utami Gati Sri , Alvin Sufaryo , Wardani Mila Kusuma , Choiriyah Siti , MCA Theresia
Published: July 2023

Perbaikan tanah dengan metode stabilisasi pada tanah lempung ekspansif merupakan suatu hal penting yang harus dilakukan sebelum mendirikan suatu bangunan.  Tanah lempung ekspansif adalah tanah yang dapat mengalami kembang susut  ketika perubahan cuaca. Salah satu metode stabilisasi adalah dengan mencampur dengan bahan tambah yang mampu merubah sifat-sifat tanah secara kimiawi. Abu sekam padi mengandung silika dan material pozzolan yang merupakan hasil dari pembakaran kulit padi yang umumnya hanya dibuang dan tidak dimanfaatkan. Tujuan dari pada penelitian ini adalah mengurangi sifat kembang susut dan menaikan daya dukung tanah. Perbaikan yang dilakukan dalam penelitian ini adalah mencampur stabilisasi dengan abu sekam padi 15%, 20% dan 25% dan lama pemeraman 3,7, dan14 hari. Penelitian dilakukan di laboratorium Mekanika Tanah ITATS,  meliputi analisa saringan, volumetri gravimetri, Atterberg limits, Standart Proctor Test dan California Bearing Ratio. Hasil penelitian  menunjukkan bahwa penambahan abu sekam padi dan waktu pemeraman dapat menurunkan sifat kembang susut  serta menaikan daya dukung tanah berdasarkan nilai liquit limit, indeks plastisitan dan CBR. Setelah campuran 20% pemeraman 14 hari abu sekam padi dapat digunakan sebagai campuran stabilisasi tanah ekspansive, untuk   25%  dengan pemeraman 14 hari, nilai LL = 49,58%, IP = 16,52%  dan CBR =7,65%
ANALISIS VARIASI ABRASI AGREGAT KASAR UNTUK PENENTUAN NILAI KUAT TEKAN BETON NORMAL
Authors: Suriawan Oktafianus Aldo , Hermansyah Hermansyah
Published: July 2023

Saat ini Indonesia merupakan salah satu Negara berkembang pesat di Asia dalam pembangunan infrastruktur, Infrastruktur merupakan sarana penunjang dalam peningkatan kemajuan ekonomi. Semua infrastruktur tersebut membutuhkan material utama, salah satunya beton.Mutu kualitas beton dipengaruhi oleh kualitas agregat sebab apabila agregatnya tidak memenuhi persyaratan,maka sering terjadi kerusakan sebelum umur rencana. Penelitian ini bermaksud untuk mengkaji pengaruh kualitas material pembentuk beton dengan kuat tekannya, material pembentuk disini adalah agregat kasar yang ditinjau pengaruh dari variasi abrasi agregat kasar terhadap nilai kuat tekan beton. Perancangan campuran beton yang digunakan adalah metode SNI 2000. Dari hasil penelitian yang telah dilakukan diperoleh hasil hubungan kuat tekan dengan variasi abrasi 20%, 22% dan 24% sebesar 24,79 Mpa, 28 Mpa dan 17,72 Mpa pada umur 38 hari. Nilai kuat tekan tertinggi terdapat pada variasi abrasi 22% sebesar 28 Mpa. Naik turun nilai kuat tekan beton disebakan karena beberapa faktor ,namun pada penelitian ini disebabkan oleh permukaan benda uji yang tidak rata dan juga karena tempat pengambilan agregat kasar yang berbeda-beda yang dimana ukuran agregat kasar pada setiap tempat pengambilan berbeda.
PENGARUH PENAMBAHAN ABU TERBANG (FLY ASH) SEBAGAI SUBTITUSI SEMEN TERHADAP KUAT TEKAN BETON MUTU NORMAL 30 MPa
Authors: Anggarini Elia , Hardiani Dyah Pradhitya
Published: July 2023

Banyaknya penggunaan beton dalam bidang konstruksi membuat upaya penciptaan mutu beton yang baik dan ekonomis. Salah satu upaya tersebut dengan memanfaatkan abu terbang (fly ash) sebagai pengganti sebagian semen pada beton. Berdasarkan itu dilakukan penelitian tentang Pengaruh Penambahan Abu Terbang (fly ash) Sebagai Subtitusi Semen Terhadap Kuat Tekan Beton Mutu Normal 30 MPa. Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimen. Variabel bebas dalam penelitian ini yaitu persentase abu terbang (fly ash) dalam semen yaitu, 0%, 4% (V4), 8% (V8) dan 12% (V12). Sementara variable terikat dalam penelitian ini yaitu agregat lainnya seperti semen, agregat halus, agregat kasar, dan air. Berdasarkan penelitian yang telah dilakukan, Kuat tekan beton umur 28 hari pada campuran beton normal didapat sebesar 30,36 MPa, pada campuran V4 didapat sebesar 13,20 MPa, pada campuran V8 didapat sebesar 12,54 MPa, pada campuran V12 didapat sebesar 11,31 MPa, dapat disimpulkan bahwa pemanfaatan abu terbang (fly ash) kelas F sebagai pengganti sebagian semen tidak berhasil dilakukan untuk pencampuran beton normal mutu 30 MPa, dikarenakan fly ash kelas F yang digunakan pada penelitian ini kurang baik, hanya dapat digunakan untuk campuran beton mutu rendah saja dan sifatnya pun tidak seperti semen yang mengikat, hanya bersifat pozzolan, sehingga mempengaruhi terhadap kuat tekan beton.
ANALISIS HUBUNGAN VOLUME, KECEPATAN DAN KEPADATAN ARUS LALU LINTAS DENGAN MEMBANDINGKAN METODE GREENSHIELD DAN METODE GREENBERG (Studi Empiris Ruas Jalan Ahmad Yani Km 37 Kota Banjarbaru)
Authors: Perdana Muhammad Gunawan
Published: July 2023

Jalan Ahmad Yani adalah jalan utama yang menjadi akses penghubung antar kota di Provinsi Kalimantan Selatan. Dalam hal ini perlu dilakukan analisis hubungan antara volume, kecepatan, dan kepadatan. Penelitian ini bertujuan untuk mengetahui model yang tepat dengan ruas jalan Ahmad Yani Km. 37 berdasarkan Model Greenshields dan Model Greenberg. Hasil analisis arah Banjarbaru menuju Martapura menggunakan Metode Greenshield diperoleh Qmaks = 1811,03smp/jam, Vm = 27,86 km/jam, dan D = 65,00 smp/km. Sedangkan menggunakan Metode Greensberg diperoleh Qmaks = 2686,34 smp/jam, Vm = 15,00 km/jam, dan D = 200 smp/km. Arah Martapura menuju Banjarbaru menggunakan Metode Greenshield diperoleh Qmaks=1817,05 smp/jam, Vm = 30 km/jam, dan D = 65,00 smp/km. sedangkan menggunakan Metode Greensberg diperoleh Qmaks = 2326,65 smp/jam, Vm = 18,61 km/jam, dan D sebesar 125smp/km. Metode yang tepat adalah Metode Greenshields dengan nilai koefisien determinasi R =0,892. Tingkat pelayanan yang didapat pada ruas jalan tersebut berada pada level C
ANALISIS HUBUNGAN DATA HUJAN SATELIT PERSIANN-CDR & TRMM 3B42 DENGAN DATA HUJAN BMKG PADA STASIUN HUJAN DI WILAYAH SUMBA BARAT
Authors: Pattiraja Agustinus Haryanto
Published: July 2023

Tersedianya data hujan yang lengkap serta akurat menjadi sebuah kebutuhan yang perlu dipenuhi namun pada kenyataan di lapangan, banyak ditemukan kasus ketidak lengkapan pendataan data hujan. Sehingga perlu dilakukan kajian mendalam mengenai keterkaitan data hujan terukur dengan data hujan dari satelirt yang disajikan oleh beberapa satelit. Penelitian ini dilakukan dengan tujuan agar mengetahui korelasi antara data hujan dari BMKG dan data satelit PERSIAN-CDR & TRMM 3B42 baik dalam hujan harian dan hujan bulanan dengan menggunakan metode coeficient correlation (r). Hasil analisa menunjukan Koefisien korelasi (r) data hujan BMKG dan data hujan satelit PERSIANN-CDR & TRMM 3B42 harian pada stasiun Waikabubak adalah 0.182, dikategorikan hubungan dianggap tidak ada dan sebesar 0.241, dikategorikan hubungan ada tapi rendah, lalu untuk koefisien korelasi (r) data hujan BMKG dan data hujan satelit PERSIANN-CDR & TRMM 3B42 harian pada stasiun Kabukarudi sebesar 0.268, dikategorikan hubungan ada tapi rendah dan sebesar 0.277, dikategorikan hubungan ada tapi rendah. Koefisien korelasi (r) data hujan BMKG dan data satelit PERSIANN-CDR & TRMM 3B42 bulanan pada stasiun Waikabubak adalah sebesar 0.822, dikategorikan hubungan tinggi dan sebesar 0.788, dikategorikan hubungan tinggi, lalu untuk koefisien korelasi (r) data hujan BMKG dan data hujan satelit PERSIANN-CDR & TRMM 3B42 bulanan pada stasiun Kabukarudi adalah sebesar 0.874, dikategorikan hubungan tinggi dan sebesar 0.897, dikategorikan hubungan tinggi. Selain itu grafik perbandingan data hujan terukur BMKG dan data hujan satelit PERSIANN-CDR & TRMM 3B42 harian dan bulanan cenderung mirip namun underestimate (nilai data hujan satelit cenderung berada di bawah data hujan terukur BMKG).
Kelayakan Media Herbarium Tumbuhan Obat Di Desa Sumber Jaya Kecamatan Lalembuu Pada Submateri Plantae
Authors: Andriyani Septi , La Fua Jumarddin , Balda Balda
Published: July 2023

Pemanfatan tumbuhan sebagai obat tradisional masih dilakukan hingga saat ini. Salah satu daerah yang masih melestarikan tradisi orang tua zaman dahulu yaitu Desa Sumber Jaya dengan keragaman suku yang ada. Penelitian ini bertujuan untuk mengetahui kelayakan pemanfaatan media pembelajaran herbarium tumbuhan obat dalam pembelajaran biologi yang digunakan dalam materi plantae. Herbarium merupakan spesimen tumbuhan yang telah dimatikan dan diawetkan melalui metode tertentu. Herbarium biasanya dilengkapi dengan data-data mengenai tumbuhan yang diawetkan, baik foto asli tumbuhan, awetan tumbuhan, label klasifikasi tumbuhan dan keterangan manfaat dari tumbuhan. Ada beberapa tahapan dari pembuatan herbarium dimulai dari pengumpulan tanaman (diusahakan spesimen lengkap), membersihkan tanaman dengan kuas dan alkohol 70%, pengeringan tanaman, pengawetan dan penyusunan herbarium. Metode yang digunakan pada penelitian ini adalah metode kualitatif dengan teknik pengumpulan data melalui obervasi, wawancara dan dokumentasi. Data hasil penelitian diolah dan dianalisis secara deskriptif kualitatif. Lokasi yang digunakan sebagai tempat pengumpulan sampel di Desa Sumber Jaya Kecamatan Lalembuu. Hasil penelitian etnobotani tersebut kemudian diimplementasikan dalam bentuk media herbarium. Hasil penelitian yang dilakukan menunjukkan data hasil penilaian kelayakan media herbarium yang dilakukan oleh dua orang validator, dari hasil uji didapatkan kategori media “sangat baik” sehingga layak digunakan sebagai media pembelajaran.
Extraction of Pelletierine from Punica granatum L.by Liquid Membrane Technique and Modelling
Authors: A. Al-Hemiri Adel , M. Abed Khalid , W. Al-Shahwany Ayaad
Published: July 2023

This work was conducted to study the extraction of pelletierine sulphate from Punica granatum L. roots by liquid membrane techniques. Pelletierine sulphate is used widely in medicine. The general behavior of extraction process indicates that pelletierine conversion increased with increasing the number of stages and the discs rotation speed but high rotation speed was not favored because of the increased risk of droplet formation during the operation. The pH of feed and acceptor solution was also important. The results exhibit that the highest pelletierine conversion was obtained when using two stages, (10 rpm) discs speed of stainless steel discs, (pH=9.5) of feed solution and (pH=2) of acceptor solution in n-decane. Assuming the existence of two thin reaction layers in the feed and stripping solutions, mathematical model was developed to describe the pelletierine transport. On the basic of the experimental data obtained under various conditions and the model proposed, it was found that the solute transfer into the liquid membrane is mainly diffusion-controlled.
Prediction and Correlations of Residual Entropy of Superheated Vapor for Pure Compounds
Authors: O. Abdullah Mahmoud , T. Najim Sarmad , Z. Atta Shahad
Published: July 2023

Prediction of accurate values of residual entropy (SR) is necessary step for thecalculation of the entropy. In this paper, different equations of state were tested for theavailable 2791 experimental data points of 20 pure superheated vapor compounds (14pure nonpolar compounds + 6 pure polar compounds). The Average AbsoluteDeviation (AAD) for SR of 2791 experimental data points of the all 20 purecompounds (nonpolar and polar) when using equations of Lee-Kesler, Peng-Robinson, Virial truncated to second and to third terms, and Soave-Redlich-Kwongwere 4.0591, 4.5849, 4.9686, 5.0350, and 4.3084 J/mol.K respectively. It was foundfrom these results that the Lee-Kesler equation was the best (more accurate) onecompared with the others, but this equation is sometimes not very preferable. It wasnoted that SRK equation was the closest one in its accuracy to that of the Lee-Keslerequation in calculating the residual entropy SR of superheated vapor, but it wasdeveloped primarily for calculating vapor-liquid equilibrium and to overcome thisproblem, efforts were directed toward the possibility of modifying SRK equation toincrease its accuracy in predicting the residual entropy as much as possible. Themodification was made by redefining the parameter α in SRK equation to be afunction of reduced pressure, acentric factor, and polarity factor for polar compoundsin addition to be originally function of reduced temperature and n parameter –which isalso function of acentric factor– by using statistical methods. This correlation is asfollows:

α =[1+n(γ)]2  , γ=-0.920338Pr-0.34091 +0.064049Tr4 ω +0.370002ω-Pr0.996932 Tr-4xThis new modified correlation decreases the deviations in the results obtained byusing SRK equation in calculating SR when comparing with the experimental data.The AAD for 2791 experimental data points of 20 pure compounds is 4.3084 J/mol.Kwhile it becomes 2.4621 J/mol.K after modification. Thus SRK equation after thismodification gives more accurate results for residual entropy of superheated vapor ofpure 20 compounds than the rest of the equations mentioned above.
Thickening Time and Compressive Strength Correlations for Bentonitic- Class "G" Cement Slurries
Authors: Hazim Fawzi Riyadh
Published: July 2023

Empirical equations for estimating thickening time and compressive strength of bentonitic - class "G" cement slurries were derived as a function of water to cement ratio and apparent viscosity (for any ratios). How the presence of such an equations easily extract the thickening time and compressive strength values of the oil field saves time without reference to the untreated control laboratory tests such as pressurized consistometer for thickening time test and Hydraulic Cement Mortars including water bath ( 24 hours ) for compressive strength test those may have more than one day.
Development of PVT Correlation for Iraqi Crude Oils Using Artificial Neural Network
Authors: S. Ahmedzeki Nada. , M. Ridha Iqdam , M. Ali Yazan , T. AbidAlwahab Zainab
Published: July 2023

Several correlations have been proposed for bubble point pressure, however, the correlations could not predict bubble point pressure accurately over the wide range of operating conditions. This study presents Artificial Neural Network (ANN) model for predicting the bubble point pressure especially for oil fields in Iraq. The most affecting parameters were used as the input layer to the network. Those were reservoir temperature, oil gravity, solution gas-oil ratio and gas relative density. The model was developed using 104 real data points collected from Iraqi reservoirs. The data was divided into two groups: the first was used to train the ANN model, and the second was used to test the model to evaluate their accuracy and trend stability. Trend test was performed to ensure that the developed model would follow the physical laws. Results show that the developed model outperforms the published correlations in term of absolute average percent relative error of 6.5%, and correlation coefficient of 96%.
Prediction of The Chemical Composition and Physical properties of Aged Asphalt Cement
Authors: A-K Mohammed Abdul- Halim , Mershed Eweed Khalid
Published: July 2023

In the present work a modification was made on three equations to represent theexperiment data which results for Iraqi petroleum and natural asphalt. The equationshave been developed for estimating the chemical composition and physical propertiesof asphalt cement at different temperature and aging time. The standard deviations ofall equations were calculated.The modified correlation related to the aging time and temperature with penetrationindex and durability index of aged petroleum and natural asphalts were developed.The first equation represents the relationship between the durability index with agingtime and temperature.

loge(DI)=a1+0.0123(2loge T-a3(1/30.t2+1/2.t))

The second equation represents the relationship between the penetration index withaging time and temperature.

Log(PI)e=b1-0.2013(T-(b3+b4t))2The third equation represents the relationship between the durability index withpenetration index.

Logeloge(PI)=a-0.5627loge(DI)The values of penetration index and durability index for all aged samples werecompared with predicted values. These correlations give a percent of error in therange of 1.2 to 7.4%.
Hydrodynamic Pressure Gradient Correlation of Some Iraqi Oil Wells
Authors: HAZIM FAWZI RIYADH
Published: July 2023

Empirical equation has been presented to predict the optimum hydrodynamicpressure gradient with optimum mud flow rate (one equation) of five Iraqi oil wellsto obtain the optimum carrying capacity of the drilling fluid ( optimum transportcuttings from the hole to the surface through the annulus).This equation is a function of mud flow rate, mud density and penetrationrate without using any charts or graphs.The correlation coefficient accuracy is more than 0.9999.