bluuebunny/crossref_metadata_2025_split huggingface dataset:
Utilization of Limestone to Effect on Physical - Mechanical Properties of Fired Clay Brick
Authors: Al-Khazraji Hayder , Zemam Sajid Kamil , Mohsin Rasool Dakhil , Majeed Tiba Hameed , Abbood Al-zahraa Hayder 
Published: November 2022

Abstract
Limestone wastes have accumulated in large quantities in countries all over the world. To reduce this materials this work is presented. The goal of this paper is to study the influence of limestone powder on the physical and mechanical of fired clay bricks. It is as replacement of clay, varying the limestone content 5, 10, 15 and 20 wt %. The water / soil ratio is constant 0.3. Three stages of firing are presented to achieve the maximum temperature. The first one is 300 °C and the second one is 600 °C and the last one is 900 °C. Results for the physical properties are showed an increasing of water absorption of clay brick specimens with the limestone content increased, in addition the efflorescence is increased. However, the density and firing shrinkage are decreased with limestone quantity. For the mechanical properties, the results indicate that the clay brick specimens with higher limestone 20 %, showed a decrease in compressive strength and flexural bending strength.
Content of sterols in in vitro propagated Chamerion angustifolium (L.) Holub plants
Authors: Dreger Mariola , Gryszczyńska Agnieszka , Szalata Milena , Wielgus Karolina 
Published: November 2022

Summary

Introduction:
Chamerion angustifolium (L.) Holub (syn. Epilobium angustifolium L.) plants have been used in the treatment and alleviating symptoms of mild Benign Prostatic Hyperplasia (BPH). Plants are abundant in polyphenols, particularly ellagitannins, phenolic acids and flavonoids. Apart from polyphenols, herb of this species also contains steroids, triterpenes and fatty acids.

Objective: The aim of this study was to determine the content of campesterol, β-sitosterol and stigmasterol in C. angustifolium genotypes cultivated in vitro.

Methods: Plants grown in vitro and the plants harvested from field were subjected to the HPLC-DAD analysis.

Results: The investigated genotypes differed in sterol content. Stigmasterol (375.64–577.77 mg/100 g of dry weight – DW) was a predominant compound among the tested sterols. In contrast to in vitro cultures, plants harvested from field synthesized mainly β-sitosterol (103.05 mg/100 g DW), whereas campesterol and stigmasterol were less abundant.

Conclusions:
C. angustifolium in vitro cultures are rich source of phytosterols, particularly stigmasterol. Genotype had a significant effect on phytosterol accumulation under in vitro conditions.
Role of natural fatty acids in prophylaxis and treatment of cardiovascular diseases
Authors: Niezgoda Joanna Teresa , Przerwa Filip , Kukowka Arnold , Aleksandrzak Justyna , Kotrych Katarzyna , Uzar Izabela 
Published: November 2022

Summary
Multiple randomized controlled trials (RCTs) have assessed the effects of supplementation with eicosapentaenoic acid (EPA) plus docosahexaenoic acid (DHA) known as omega-3 polyunsaturated fatty acids (FAs), commonly called fish oils, on the occurrence of cardiovascular diseases. In a living organism, omega-3 FA (EPA and DHA) and omega-6 FA (arachidonic acid [AA]) are also involved in the formation of key regulators of platelet aggregation, vasodilation and inflammation. It is important to know that EPA and DHA act in different ways on membrane structure and lipid metabolism. For this reason, combining DHA with EPA may modify the clinical effects of only EPA treatment. The effects of omega-3 FAs on cardiovascular system remain uncertain. Two recent negative trials of EPA + DHA, STRENGTH and OMEMI, have put the utility of omega-3 FAs in preventing atherosclerotic cardiovascular events under debate. This paper presents the actual knowledge on the role of polyunsaturated acids in cardiovascular diseases.
Effect of ethanolic extract of rosella (Hibiscus sabdariffa L.) on vital signs, kidney, and liver safety
Authors: Nurani Laela Hayu , Darmawan Endang , Akrom  , Guntarti Any , Warsi  , Edityaningrum Citra Ariani , Harun Nurhidayati , Mardhiyani Dini , Syahrana Nur Azizah , Azizah Nur , Setianingsih Siti , Rohman Abdul 
Published: November 2022

Summary

Introduction: Rosella (Hibiscus sabdariffa L) extract is often used as immune-stimulant because it contains flavonoids, especially anthocyanin and quercetin with antioxidant activities.

Objective: This study aimed to determine the safety of the rosella extract consumed in the form of capsules on the vital signs, haematologic parameters as well as kidney and liver function.

Methods: This research was conducted using clinical trial pre- and post-test design in healthy participants. There were 21 healthy participants (52% male, age ranged 8–45) consuming rosella capsules for thirty days, in a dose of 500 mg extract daily. Leukocytes, lymphocytes, blood urea nitrogen (BUN), serum glutamic oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT) and vital signs were consecutively evaluated on days 0, 31, and 45, respectively. The Wilcoxon and paired sample t-test were used to compare the parameters among the evaluated times.

Results: The result showed that no significant difference for all parameters among the three time points (p>0.05).

Conclusion: These findings suggested that the administration of ethanolic extract of rosella is potential safe and does not negatively affect the vital signs, haemoglobin, leukocytes, lymphocytes, BUN, SGOT, and SGPT.
Ramsey actions and Gelfand duality
Authors: Fouché Willem L. 
Published: November 2022

Abstract
In this paper we discuss structural Ramsey theory and how it relates to the understanding of extremely amenable groups with an emphasis on the measure theoretic nature of this problem. We discuss the problem within Blass-Ramsey actions on discrete spaces and and more general group actions on compact spaces and explore how we can look at these problems by looking at Gelfand duals of commutative C
*-algebras.
On the Generation of an Intense Temperature Gradient Through a Modified Shock Tube Hydrodynamics for a Possible Continuous Sterilization Process
Authors: Hachoum Houcine , Ksibi Hatem 
Published: November 2022

Abstract
Data on hydrodynamics of carbon dioxide in shock tube can be presented as a main opportunity to apprehend and establish sterilization treatment process. Here, a modified and axi-symmetric shock-tube model has been developed to simulate shockwave propagation and reflection after rapid bursting of two diaphragms separated initially with a relaxed fluid. It has been demonstrated that the given model is capable of accurately simulating, locating, and measuring shock and expansion wave propagation and reflections as well as estimating the thermodynamic preconditions that can lead to prompt sterilization.
Evaluation of Wear Behaviour Based on Mechanical Properties and Particle Size in LM26 MMC
Authors: Konda Lakshmi Chaitanya , Srinivas K. 
Published: November 2022

Abstract
Based on its superior casting and mechanical properties, LM26 is a well-known material in the automobile sector for the manufacturing of pistons for both diesel and gasoline engines. However, cast alloys diminishing the strength at higher temperatures leads to metal matrix composites. The present work deals with fabrication and characterisation of aluminium cast alloy LM26 reinforced with ceramic particles of Almandine Garnet with varying percentages fabricated by dual step stir casting technique The micro hardness and ultimate tensile strength (UTS) were determined and the sliding wear behaviour was estimated using a pin-on-disc apparatus. The effect of particle size and weight fraction of reinforcement on physical and mechanical properties were investigated and collated with unreinforced metal. Wear behaviour of the composite had a reasonably good correlation with composite mechanical properties were also observed. Validation of Experimental results with theoretical values were also discussed.
Application of a Novel Methodology for the Detection of Harmonic Vibration in the Acceleration-Time Functions of Vehicle Platforms
Authors: Pidl Renáta 
Published: November 2022

Abstract
In this paper, an attempt is made to determine whether Cepstrum analysis can be applied to detect pure harmonic sine waveform acceleration-time signals in a frequency sub-band from the acceleration-time function of vehicle load platforms. Based on Cepstrum evaluation of specific measurement results at different speeds and under different road conditions, the analysis reveals that no frequency band exhibits full-period pure sinusoidal excitation, which casts doubt regarding usuage of sinusoidal sliding frequency tests for package shaking tests.
The Principle of Hybridization in the Structural Organization and Evolution of Electromechanics Objects
Authors: Shynkarenko Vasyl , Kuznetzov Yuriy , Soos Lubomir , Shymanska Anna , Kotliarova Viktoriia , Krasovskyi Pavlo 
Published: November 2022

Abstract
The systemicity of hybridization phenomenon is analyzed. This study summarizes the mechanisms of manifestation and forms of submission of the hybridization law, which determines the principles and boundaries of structure formation, taxonomy, methodology of synthesis and analysis of hybrid electromechanical objects at the intraspecies and intergenic levels of their structural organization. The results of the study are important for the further development of the theory of genetic evolution of technical systems.
Accuracy of fat fraction estimation using Dixon: experimental phantom study
Authors: Panina O. Yu. , Gromov A. I. , Akhmad E. S. , Petraikin A. V. , Bogachev D. A. , Semenov D. S. , Vladzymyrskyy A. V. , Vasilev Yu. A. 
Published: November 2022

Objective. Quantitative assessment of Dixon two-point and three-point technologies operation using phantom modeling in the range from 0 to 70%.Materials and methods. To simulate substances with different concentrations of the fat phase we chose direct oil-in-water emulsions. Tubes with ready-made emulsions were placed in a phantom. Emulsions based on vegetable oils were presented in the range from 0–70%. The phantom was scanned on an Optima MR450w MRI tomograph (GE, USA) in two Dixon modes: the accelerated two-point method “Lava-Flex” and the three-point method “IDEAL IQ”. A scan was performed on a GEM Flex LG Full RF coil. We calculated fat fraction (FF) using two formulas.Results. There is a linear relationship of the determined values when calculating the fat concentration in “IDEAL IQ” mode and using the formula based on Water and Fat. The accuracy of body fat percentage measurement in “IDEAL IQ” mode is higher than in “Lava-Flex” mode. According to the MR-sequence “Lava-Flex” draws attention to the overestimation of the measured values of the concentration of fat in relation to the specified values by an average of 57.6% over the entire range, with an average absolute difference of 17.2%.Conclusion. Using the “IDEAL IQ” sequence, the results of the quantitative determination of fractions by formulas were demonstrated, which are more consistent with the specified values in the phantom. In order to correctly quantify the fat fraction, it is preferable to calculate from the Water and Fat images using Equation 2. Calculations from the In-phase and Out-phase images provide ambiguous results. Phantom modeling with direct emulsions allowed us to detect the shift of the measured fat fraction.
Quantitative characteristics of radiation-induced lung damage in oncological patients during radiotherapy based on RCT data
Authors: Ledenev V. V. , Solodkiy V. A. , Nudnov N. V. , Sotnikov V. M. 
Published: November 2022

Objective. Comparison of the magnitude of the change in the density of lung tissue and the volume of these changes after radiation therapy over time based on the data obtained using the new method of quantitative analysis developed by us and with the usual visual assessment of the CT data.Materials and methods. We used the data of dynamic observation of 90 patients who underwent RT for the tumors of thoracic localization during the period from 2014 to 2021 at the Federal Institution “Russian Scientific Center of Roentgenoradiology”. These patients had CT examinations performed before and after RT. Control CT studies were performed 1–237 days after RT (mean control interval 96 ± 64.3 days). A total of 238 CT studies of these patients were analyzed, with an average number of RCT studies per patient of 2.6. Among the selected patients, there were 36 (40%) men and 54 (60%) women aged 23 to 86 years (the average age was 51.9 ± 15.6 years).Results. Radiation damage in the lungs using the method of quantitative analysis of CT data is detected starting from the value of ΔHU = 20 and volume from 3.2% for the early period (15–35 days) after the end of treatment. Starting from 15–25 to 50 days after the end of RT, quantitative analysis reveals primary changes in the lung tissue, incl. and undetectable visually (from 20 to 80 HU), and to suggest further dynamics of these changes depending on the characteristics of the performed RT. From 50 to 80 days – reveals the real volume of radiation pulmonitis by taking into account the changes invisible during visual analysis in the lung tissue irradiated at a dose of 20 Gy to 30 Gy. From 80 to 120 days – allows you to assess the presence and dynamics of changes in the lung tissue with the threshold radiation dose in the lung tissue 30–35 Gy. From 120 onwards, quantitative analysis of CT data, as well as visual assessment, reveals damage in areas of the lungs with the dose of more than 30–35 Gy, which is caused by post-radiation pneumofibrosis. On the basis of the obtained quantitative data on radiation lung damage, the mathematical regularities of the development of this process were calculated, taking into account the time and dose factors.Conclusions. Quantitative assessment of changes in lung density according to CT data in dynamics, carried out using the technique developed by us, is a radiomic indicator of their radiation damage during therapeutic irradiation in cancer patients, which, in combination with the presented mathematical model, can be used for diagnostic purposes to quantify the severity and predicting the dynamics of radiation damage to the lungs in general, as well as identifying individual radiosensitivity.The results obtained can be presented not only in the form of graphs, but also in the form of color maps with preservation of anatomical landmarks, which is convenient for use in clinical practice to support medical decision-making on patient management.
Technetium-99m labelled somatostatin analogue myocardial uptake in subacute and “old” myocardial infarction: initial experience
Authors: Ilyushenkova J. N. , Syrkina A. G. , Trusov A. A. , Mishkina A. I. , Mochula O. V. , Sazonova S. I. , Ryabov V. V. 
Published: November 2022

Background. It has been shown that prognosis following acute myocardial infarction (MI) strongly correlates with intensity of inflammatory reactions in response to myocardial injury. Thereby diagnostic methods for myocardial post-infarction inflammation (PII) monitoring are needed. Scintigraphy with somatostatin receptor targeted radiotracers has prospects for PII imaging, but its clinical value is poorly studied.Methods. Six patients with ST-segment elevation anterior myocardial infarction (STEMI) were examined by chest SPECT/СT with 99mTc-Tektrotyd and rest myocardial perfusion scintigraphy (MPS) at subacute and remote (8 th month) period of the disease. Parameters of both scintigraphic methods were estimated.Results. In subacute stage of MI myocardial perfusion defects were revealed in all 6 patients (mean SRS 11.83 ± 8.89), 99mTc-Tektrotyd uptake in myocardium was revealed in 3 of 6 patients. At remote period intense uptake of 99mTc-Tektrotyd was found only in 1 patient. This uptake was more spread and clears, comparing with accumulation in subacute stage of AMI.Conclusion. Myocardium scintigraphy with 99mTc-Tektrotyd allows identifying overexpression of somatostatin receptors in areas of recent and old myocardium infarction. In some patients the radiopharmaceutical uptake may expands to a remote period of the disease. Further larger studies and histological validation of scintigraphic results are needed.
PENGARUH BEBAN OPERASIONAL TERHADAP LABA BERSIH PADA PT. TELEKOMUNIKASI INDONESIA. Tbk
Authors: Solihudin Ade , Ruhyanto Ahyo , Aryansyah Firman 
Published: November 2022

Laba dihasilkan dari selisih antara sumber daya masuk berupa pendapatan dan keuntungan dengan sumber daya keluar berupa beban dan kerugian selama periode waktu tertentu. Pendapatan adalah hasil dari kegiatan operasional perusahaan sedangkan beban adalah biaya yang dikeluarkan perusahaan untuk membiayai kegiatan operasional dengan tujuan untuk memperoleh pendapatan yang diharapkan perusahaan. Metode penelitian yang digunakan deskriptif dengan pendekatan kuantitatif. Analisis data statistik yang digunakan adalah analisis koefisien korelasi sederhana, koefisien determinasi dan uji hipotesis uji t. Berdasarkan hasil perhitungan koefisien determinasi diperoleh hasil bahwa pengaruh beban operasional terhadap laba bersih perusahaan sebesar 0,00064 % sedangkan sisanya sebesar 99,99% dipengaruhi oleh faktor lain di luar laba bersih yang tidak diteliti penulis dalam penelitian ini. Berdasarkan hasil perhitungan uji hipotesis uji t diperoleh hasil uji sebesar -0,0044 pada dk = (n-2) = (5-2) = 3 dan ɑ = 0,05 diperoleh sebesar 5,84091 dengan demikian maka jika t hitung < t table, maka Ha ditolak dan Ho diterima, maka Hipotesis ditolak artinya beban operasional berpengaruh negatif terhadap laba bersih.
PENGARUH BIAYA PEMELIHARAAN AKTIVA TETAP TERHADAP PENDAPATAN OPERASIONAL PADA CV. WIDURI JAYA SNACK CIAMIS
Authors: Megasanti Risa , Sukomo Sukomo , Mulyadi Endang 
Published: November 2022

Permasalahan dalam penelitian ini adalah: 1) Seberapa besar perkembangan biaya pemeliharaan aktiva tetap pada CV. Widuri Jaya Snack?; 2) Seberapa besar perkembangan pendapatan operasional pada CV. Widuri Jaya Snack?; 3) Seberapa besar pengaruh biaya pemeliharaan aktiva tetap terhadap pendapatan operasional pada CV. Widuri Jaya Snack?. Adapun tujuan dalam penelitian ini untuk: 1) Mengetahui besarnya perkembangan biaya pemeliharaan aktiva tetap pada CV. Widuri Jaya Snack, 2) Mengetahui besarnya perkembangan pendapatan operasional pada CV. Widuri Jaya Snack, 3) Mengetahui seberapa besar pengaruh biaya pemeliharaan aktiva tetap terhadap pendapatan operasional pada CV. Widuri Jaya Snack. Metode yang digunakan penelitian ini menggunakan metode penelitian deskriptif. Penelitian ini menghasilkan beberapa simpulan sebagai berikut: 1) Biaya pemeliharaan Aktiva Tetap Pada CV. Widuri Jaya Snack mulai tahun 2016 sampai tahun 2020 besarnya biaya pemeliharaan aktiva tetap dengan rata rata sebesar Rp.22.852.600,- pertahun atau mengalami kenaikan sebesar 8,78% pertahun. 2) Pendapatan Operasional Pada CV. Widuri Jaya Snack mulai tahun 2016 sampai tahun 2020 besarnya pendapatan operasional dengan rata rata sebesar Rp. 5.216.347.657,66,- pertahun atau mengalami kenaikan sebesar 3,25% pertahun. 3) Biaya pemeliharaan aktiva tetap berpengaruh positif dan signifikan terhadap pendapatan operasional pada CV. Widuri Jaya Snack, besarnya pengaruh sebesar 81,54%.
SUPERVISI AKADEMIK KEPALA SEKOLAH SEBAGAI UPAYA DALAM MENINGKATKAN KOMPETENSI PROFESIONAL GURU PADA PEMBELAJARAN DARING
Authors: Hilman Hilman 
Published: November 2022

Penelitian ini dilatarbelakangi adanya permasalahan dimana dengan adanya pandemik Covid 19, pembelajaran dilakukan dengan sistem daring, sementara guru belum memiliki pengalaman dalam penyusunan administrasi pembelajaran maupun pelaksanaan pembelajaran dengan sistem daring. Penelitian ini merupakan Penelitian Tindakan Sekolah (PTS) dalam dua siklus yang dilakukan melalui tahapan pelatihan terkait pembelajaran dengan sistem daring kemudian dievaluasi dengan supervisi akademik yang dilakukan oleh Kepala Sekolah guna mengetahui peningkatan kompetensi profesional guru dalam pembelajaran dengan sistem daring. Berdasarkan hasil penelitian yang dilakukan oleh peneliti selaku Kepala SDN 1 Tanjung, peneliti mempunyai penilaian hasil supervisi akademik yang dilakukan guna meningkatkan kinerja guru sudah terbilang efektip. Hal ini dilakukan dengan beberapa tahapan, antara lain melaksanakan pelatihan guru mengenai penyusunan administrasi pembelajaran dan penyusunan bahan ajar pada pelaksanaan pembelajaran dengan sistem daring, dilanjutkan dengan pelaksanaan supervisi akademik berupa observasi pelaksanaan pembelajaran daring, hasil dari supervisi akademik berupa penilaian yang dilakukan oleh guru sudah cukup baik. Kendala yang terjadi adalah dimana sebagian besar peserta didik SDN 1 Tanjung terhambat dikarenakan kurangnya signal.
Legal Issue of Establishing Unified Electronic Information System of Health Status of Citizens
Authors: Булнина Анастасия Сергеевна 
Published: November 2022

Актуальность темы обусловлена отсутствием в данной сфере современных комплексных научных исследований, а также растущей численностью людей с ИППП и другими опасными заболеваниями. В статье обосновывается необходимость разработки правовых норм по обязательному медицинскому обследованию населения и введению единой электронной информационной системы о состоянии здоровья граждан.
The relevance of the research is determined by the lack of modern complex scientific studies as well as the growing number of people having sexually transmitted diseases (STD) and other dangerous illnesses. We substantiate the need to develop legal norms concerning compulsory medical examination of the population and establishing a unified electronic information system of health status of citizens.
Providing Operational Search Support in Investigating Thefts of Virtual Property in Online Gaming Industry Environment
Authors: Шахматов Александр Владимирович , Скоков Игорь Евгеньевич 
Published: November 2022

В статье рассматриваются перспективы оперативно-розыскного обеспечения при раскрытии преступлений, совершенных в Интернете, в свете развития рынка игровой индустрии на территории России. Вносятся предложения по использованию существующей информационной базы данных федерального уровня (ИБД-Ф) «Дистанционное мошенничество» в рамках существующей тенденции увеличения количества подобных преступлений.
The article discusses prospects of operational search support in solving crimes committed on the Internet in the light of the development of the gaming industry market in Russia. Proposals are made to use the existing information database "Remote fraud" in view of the current trend of the ongoing increase in the number of such crimes.
On Monetary Aspects of Modern Financial Policy in Russia
Authors: Кроливецкая Валерия Эдуардовна 
Published: November 2022

В статье дана характеристика основным каналам предложения денег в российской экономике. Особое внимание уделено бюджетному каналу денежного предложения и причинам его ограниченного использования после финансового кризиса 1998 года и по настоящее время. Рассмотрен вопрос о дефицитном финансировании государственных расходов, общепринятом в международной практике, о взаимосвязи государственных финансовой и денежно-кредитной политик по линии денежного предложения. Даны рекомендации по увеличению денежного предложения экономике по бюджетному каналу в сочетании с кредитным, по изменению целевого ориентира денежно-кредитной политики.
We characterize the main channels of money supply in Russian economy. Special attention is paid to the budgetary channel of money supply and the reasons for its limited use after the financial crisis of 1998 and up to now. We consider the issue of deficit financing of public expenditure common in international practice and the interconnection of public financial and monetary policies as far as money supply is concerned. We offer guidelines aimed at increasing money supply using budgetary channel in combination with the credit channel and changing the target of monetary policy .