bluuebunny/crossref_metadata_2025_split huggingface dataset:
MEMBANGUN SOCIAL MEDIA ENGAGEMENT MELALUI COURSE EXPERIENCE DAN STUDENT SATISFACTION
Authors: Wicaksono Ryan Arif , Widjajanti Kesi , Kuswardani DC 
Published: July 2024

<p>Tujuan dari penelitian ini adalah untuk menganalisis perilaku keterlibatan media sosial dari peserta pelatihan BBPLK Semarang melalui pengalaman kursus dan kepuasan siswa. Populasi dalam penelitian ini adalah seluruh peserta yang mengikuti pelatihan kejuruan Bisnis dan Manajemen di BBPLK Semarang pada tahun 2021. Teknik pengambilan sampel yang digunakan adalah <em>purposive sampling </em>dengan jumlah responden 100 orang. Teknik analisis yang digunakan menggunakan program Smart PLS 3. Hasil penelitian menyimpulkan bahwa pengalaman kursus berpengaruh signifikan terhadap kepuasan siswa dan kepuasan siswa berpengaruh signifikan terhadap perilaku keterlibatan di media sosial dalam bentuk <em>follow</em>, <em>like</em>, <em>share</em>, dan <em>comment</em>.</p><p> </p><p><em>The purpose of this study was to analyze the social media engagement behavior of BBPLK Semarang training participants through course experience and student satisfaction. The population in this study were all participants who took part in the Business and Management vocational training at BBPLK Semarang in 2021. The sampling technique used was purposive sampling with 100 respondents. The analytical technique used is the Smart PLS 3 program. The results of the study conclude that course experience has a significant effect on student satisfaction and student satisfaction has a significant effect on engagement behavior on social media in the form of follow, like, share, and comment.</em></p>
PENGARUH MOTIVASI EKSTRINSIK DAN SELF EFFICACY TERHADAP KINERJA PEGAWAI MELALUI DISIPLIN KERJA
Authors: Indarwati Sri , Indarto Indarto , Santoso Djoko 
Published: July 2024

<p>Penelitian ini bertujuan <em>untuk</em> menganalisis pengaruh Motivasi ekstrinsik dan <em>Self efficacy</em> terhadap Kinerja pegawai baik secara langsung maupun melalui Disiplin kerja pada pegawai Kecamatan Semarang Timur Kota Semarang. Jenis penelitian ini adalah kuantitatif dengan sumber data yang digunakan adalah data primer. Populasi yang digunakan dalam penelitian ini adalah seluruh Aparatur Sipil Negara di Kecamatan Semarang Timur dengan jumlah 65 orang, dengan teknik samping yang digunakan adalah metode sensus sejumlah 65 responden. Metode pengumpulan data menggunakan kuesioner, dengan teknik analisis data yang digunakan adalah analisis jalur dan uji sobel. Hasil penelitian diperoleh bahwa Motivasi ekstrinsik berpengaruh positf dan signifikan terhadap disiplin kerja, dan s<em>elf efficacy</em> berpengaruh positf dan signifikan terhadap disiplin kerja. Motivasi ekstrinsik berpengaruh positf dan signifikan terhadap kinerja pegawai, <em>self efficacy</em> berpengaruh positf dan signifikan terhadap kinerja pegawai, dan disiplin kerja berpengaruh positf dan signifikan terhadap Kinerja pegawai. Dari hasil uji mediasi diperoleh bahwa Disiplin kerja dapat memediasi pengaruh Motivasi kerja terhadap Kinerja pegawai, dan Disiplin kerja dapat memediasi pengaruh <em>Self efficacy</em> terhadap Kinerja pegawai</p><p> </p><p><em>This study aims to analyze the effect of extrinsic motivation and self-efficacy on employee performance either directly or through work discipline in the employees of the East Semarang District, Semarang City. This type of research is quantitative with the data source used is primary data. Population used in this study were all State Civil Apparatuses in the District of East Semarang with a total of 65 people, with sampling technique used was the census method so that the number of samples in this study was 65 respondents. The data collection method used a questionnaire, with data analysis techniques used were path analysis and Sobel test. The results showed that extrinsic motivation has a positive and significant effect on work discipline, and self-efficacy has a positive and significant effect on work discipline. Extrinsic motivation has a positive and significant effect on employee performance, self-efficacy has a positive and significant effect on employee performance, and work discipline has a positive and significant effect on employee performance. From the results of the mediation test, it was found that work discipline can mediate the effect of work motivation on employee performance, and self efficacy on employee performance</em></p>
PENGARUH KUALITAS LAYANAN, FASILITAS DAN METODE PEMBELAJARAN TERHADAP KEPUASAN SISWA
Authors: Bagyo Bagyo , Utaminingsih Adijati , Utaminingsih Adijati , Wardoyo Paulus , Wardoyo Paulus 
Published: July 2024

<p><em><span lang="IN">While there is a large number of research work performed on presenting different factors influencing students' satisfaction with Higher Education institutions, there is a need to combine all these efforts and provide a comprehensive framework of factors influencing the students' satisfaction. This study aims to analyse the influence of service quality, facility, learning method on student satisfaction and image as a moderating variable. The respondents of this research are Semarang Sedes Sapentiae High School amounting to 96.</span></em><em><span lang="IN"> The data were processed by using Smart Partial Least Square (PLS) program. The results of this study indicate that the service quality, learning methode influence student satisfaction, while the facility have no significant effect on student satisfaction. The result of the hypothetical test on moderation effect showed that image moderate the correlation between service quality and learning method with the student satisfaction, but image could not moderate the correlation between the facility with student satisfaction</span>.</em></p><p><em><br /></em></p><p>Meskipun ada sejumlah besar penelitian yang dilakukan untuk menyajikan faktor-faktor berbeda yang mempengaruhi kepuasan mahasiswa/siswa terhadap institusi sekolah, tetap ada kebutuhan untuk menggabungkan semua upaya ini dan menyediakan kerangka kerja yang komprehensif mengenai faktor yang mempengaruhi kepuasan mahasiswa/siswa. Penelitian ini bertujuan untuk menganalisis pengaruh kualitas layanan , fasilitas, metode pembelajaran terhadap kepuasan siswa dengan citra sekolah sebagai variabel moderating.Responden dalam penelitian ini adalah siswa SMA Sedes Sapentiae Semarang yang berjumlah 96 orang. Data diolah dengan menggunakan program Smart Partial Least Square (PLS). Hasil penelitian ini menunjukkan bahwa kualitas layanan, motode pembelajaran dan citra berpengaruh signifikan terhadap kepuasan siswa, sedangkan fasilitas tidak berpengaruh terhadap kepuasan siswa. Hasil penelitian uji hipotesis efek moderasi menunjukkan bahwa citra dapat memoderasi hubungan antara kualitas layanan dan metode pembelajaran dengan kepuasan siswa, tetapi citra tidak memoderasi hubungan antara fasilitas dengan kepuasan siswa</p><p><em><br /></em></p>
The American factor influence on the British position during the Iranian oil crisis 1951-1953
Authors: Hadi Mihi Zulaikha , Raouf Abdullah Qahtan 
Published: July 2024

The issue of nationalizing oil in Iran has already been addressed by researchers in previous studies that were characterized by comprehensiveness، However، this study attempts to shed light on the ongoing controversy in some aspects related to the British position، which were not resolved in previous studies، in light of the data which we obtained from unpublished documents and the recently published British and American documents and memoirs of decision makers in the countries concerned. There are still those who believe that the oil interests of Western companies were the most important factor in formulating the British and American decision، but there is another school that believes that the security factor and the exigencies of the Cold War were the most important factor in resolving matter the way it was done. This study is an attempt to shed further light on this controversy.
The study will give special importance to the American factor and its influence on the British position during the Iranian oil crisis. The importance of the research is evident in the fact that it specializes in studying the first real attempt by a country that seeks to nationalize one of its most important resources in the Middle East in the atmosphere of the Cold War. Therefore، the study is an attempt to explain and analyze how and why the government of Muhammad Mosaddeq was seeking to nationalize Iranian oil ، and we discuss the challenges it faced in order to achieve that goal.
As for the methodology of the paper، we study the debate on the subject by following the historical methodology in addressing the issues in a chronological way and critically analyzing the discourse.
While doing the analyses، we compare the British archival material with that of American and the Iranian. The collected data from the archival material will be used to evaluate the previous studies in the field. As for the structure of the research، it consists of an introduction، two sections، and the conclusion. In the preface، light is shed on a historical renunciation of the Anglo-Iranian company. As for the first section، it is devoted to studying the development of British oil interests in Iran (1902-1951)، in which the conflicting British and Russian interests towards Iranian oil addressed. Besides، the differences between the views of the Iranian government and the Anglo-Iranian Oil Company during 1947-1951 on the oil crisis are explained in detail. The second topic deals with the stand of the United States of America on the oil crises and its impact on formulating British position during the Iranian oil crisis 1951-1953.While explaining the US stand on the crisis ، we will point the two distinct stages in this regard .Finally ، we explain and discuss how the US and British government had eventually reached the conclusion that a joint efforts were needed to overthrow the government of Muhammad Mossadegh on August 19، 1953. In the end study will present its most important findings.
Implantation of a self-expanding transcatheter valve in vitro into a 3D heart model of a patient with right ventricular outflow tract dysfunction
Authors: Voitov A. V. , Manukian S. N. , Vladimirov S. V. , Borodin V. P. , Kobelev E. , Zhuravleva I. Yu. , Arkhipov A. N. , Gorbatykh A. V. , Rzaeva K. A. , Nichay N. R. , Bogachev-Prokophiev A. V. , Soynov I. A. 
Published: July 2024

Introduction. Transcatheter pulmonary valve implantation is one of the most relevant issues in endovascular surgery for congenital heart defects. However, at present, there is no “ideal” valve for transcatheter implantation. Balloon-expandable pulmonary valves for transcatheter implantation have a rigid frame, which requires pre-stenting of the native right ventricular outflow tract or the valve-containing conduit to avoid perioperative complications. This tactic increases the procedure time, complicates the valve implantation technique, and raises the cost of the operation. Self-expanding valves, which are primarily aimed at addressing pulmonary regurgitation, present an alternative. Determining an adequate implantation zone for the valve is crucial for the successful treatment of a dilated native right ventricular outflow tract. This is why preoperative CT imaging protocol, with 3D reconstruction providing detailed anatomical structures at every level, plays a significant role.Aims. To assess the properties of the transcatheter self-expanding frame of the pulmonary artery valve and to perform its in vitro implantation in a 3D model of a patient with right ventricular outflow tract dysfunction.Material and Methods. We developed a model of a self-expanding nitinol frame for a transcatheter valve for implantation in the position of the pulmonary artery, based on the most commonly encountered anatomy of right ventricular outflow tract dysfunction. We conducted tests for radial forces of the frame and valve loading trials in the delivery system. Results. A 3D reconstruction of the right heart chambers with the inferior vena cava was performed, with detailed anatomical structure delineation at each level. A 3D model was printed on an SLA 3D printer, Formlabs Form 3B+, using Elastic 50A photopolymer (Formlabs Inc., USA). Under fluoroscopic guidance, a test implantation of the pulmonary artery valve frame was carried out.Conclusion. By optimizing the design of the supporting frame, we were able to improve the transcatheter valve frame model based on the analysis of the most common right ventricular outflow tract dysfunctions. 3D-printed constructs enable the safe testing of developing transcatheter valve models and help identify and timely address any existing deficiencies.
Russian Conduit II: rationale for the use of a new aortic root prosthesis and first case-report
Authors: Komarov R. N. , Tsaregorodtsev A. V. , Tkachev M. I. 
Published: July 2024

Introduction. Aortic root surgery continues to improve. Both linear valve-containing and anatomic (so-called Valsalva grafts) conduits are used for aortic root replacement. However, there is no clear opinion about the importance of using anatomical valve-containing conduits. The answer to this question can be obtained by comparing the transvalvular hemodynamics of a linear conduit with the transvalvular hemodynamics of the native aortic root. Research in this area will help to find the characteristics that a new valve-containing conduit should possess to provide optimal hemodynamics.Objective. To demonstrate the method of aortic root structures prosthetics with imitation of its natural geometry, to report on the advantages of such intervention from the position of transvalvular hemodynamics.Material and Methods. An experimental study of transvalvular hemodynamics in the prosthesis “Russian Conduit I” of linear design with autopericardial flaps sewn into it was performed. The results were compared with the reference hemodynamics in the native aortic root with sewn-in flaps of the same shape as in the studied conduit. The results of the study showed that the natural geometry of the aortic root significantly affects transvalvular hemodynamics, which is expressed in smaller transvalvular gradients, lower energy losses at the opening and closing of the flaps, and larger opening area.Results. We extrapolated the experimental data to the clinical results of similar operations in comparable groups. We studied the results of the operation with the use of the Russian Conduit prosthesis. The operation with the aortic root preservation was symmetrical neocuspidization. According to the results of the study it was demonstrated that preservation of native aortic root gives better transvalvular hemodynamics, which significantly affects the reverse remodeling of the left ventricle in the mid-term period. With this in mind, it is concluded that it is necessary to preserve the geometry of the aortic root during interventions for its prosthesis with a valve-containing conduit. This paper presents a clinical case of a new aortic root prosthesis “Russian Conduit II”. It was used for aortic root reconstruction with restoration of the locking function of the native aortic valve. The description of the surgical technique, immediate results, and the possibilities of similar surgical intervention are described in detail.Conclusion. There are reasons to believe that the use of the developed prosthesis in aortic root surgeries can give hemodynamic results comparable with native valve, and the operation itself has a potential for high reproducibility and standardization of surgical technique, which will expand its application.
Assessment of free circulating DNA level and nucleotide profile at arterial hypertension
Authors: Myachina O. V. , Pashkov A. N. , Kolesnikova E. V. , Korobova Y. R. 
Published: July 2024

Arterial hypertension (AH) refers to socially significant diseases which cause a high level of primary disability and mortality. Identification of this pathology predictors, such as free circulating DNA (fc-DNA) level in blood, can provide early disease diagnostics, effective treatment, and, finally, a relatively favorable prognosis.Aim: To study fc-DNA level and nucleotide profile in blood plasm in patients with hypertension.Material and Methods. Study included 60 persons: 20 patients with stage II hypertension (group Hypertension II), 20 patients with stage III hypertension (group Hypertension III) and 20 healthy people (Control group). For fc-DNA isolation diaGene kit had been used. Obtained DNA samples were analyzed by liquid chromatography using FPLS® System (Sweden). Results. All samples (groups II, III and Control) involved not only fc-DNA, but also acid-soluble nucleotides. In patients with hypertension II and hypertension III fc-DNA content significantly increased compared to practically healthy individuals, regardless of disease stage (p < 0.05). The study also revealed a decrease in the level of adenosine and guanosine diphosphate (GDP) in the blood plasma in patients with hypertension, which was statistically significant in group III.Conclusion. The obtained data show new possibilities for cf-DNA and acid-soluble nucleotides using in blood plasma in patients with hypertension and determine further research of these indicators correlation with clinical features and prognosis of hypertension.
Cryopreserved homografts in valve surgery – the experience of one clinic
Authors: Komarov R. N. , Tsaregorodtsev A. V. , Tkachev M. I. , Vasalatii I. M. , Oleinik I. V. , Panchenko M. O. , Kluzina A. G. , Nuridzhanyan A. V. , Kalinina Y. A. , Laipanov M. A. , Tebieva D. K. 
Published: July 2024

Introduction. Surgical treatment of infective and prosthetic endocarditis using homografts shows good results. Aortic homograft implantation is a common technique, whereas tricuspid and mitral valve replacement with mitral homograft is rare. Multiple valve malformations in infective endocarditis pose a surgical challenge because these patients are usually critically ill and surgical outcomes are often unsatisfactory. In this article, we describe our experience with successful surgical treatment of patients who underwent implantation of cryopreserved homograftsAim: To study the long-term results of cryopreserved homograft implantation, freedom from reoperation, long-term survival, and to demonstrate new technical aspects of homograft implantation.Material and Methods. This is a retrospective analysis of 24 patients operated in our clinic (UKB No. 1 of Sechenov University) between 2015 and 2021. Aortic homograft (AH) in orthotopic position was implanted in 6 patients with active IE. Pulmonary homograft (PH) was implanted in 13 patients: in orthotopic position (n = 10) and in heterotopic position (in the aortic root) (n = 3). Mitral homograft was implanted in 4 patients, with only 1 of them in the orthotopic position, whereas 3 were implanted in the TC position (Table 1). In 1 patient with AK and MC IE extended to the mitral-aortic contact, the use of an aorto-mitral monobloc was requested.Results. In the midterm period, we had available data from all surviving patients. The mean gradient on AC after implantation of aortic homograft and pulmonary homograft in the position of the aortic root was 4.6 ± 1.96 mm Hg, significant regurgitation was absent in all patients, and no cases of reoperation were noted. After orthotopic implantation of pulmonary homografts, the mean gradient was 3.2 ± 1.4 mm Hg, significant regurgitation was absent in all cases. After MG implantation in TC position according to ECHO data all patients have 0–1 degree of regurgitation on the prosthesis, mean pressure gradient was 2,5 ± 0,6 mm Hg. MG was implanted in orthopic position in one case – a 52 years old woman with Bechterew’s disease, mean gradient on IC was 4 mm Hg, regurgitation 0–1 degree.Conclusion. Valve homografts may have more advanced indications than IE. Techniques such as implantation of MG in tricuspidal or orthotopic position and the use of combined homografts show promising results, but require further clinical recruitment and evaluation of the distant period.
Study of the blending of petrol with 10% anhydrous ethanol. Evaluation of physicochemical properties
Authors: Torres Jaime , Molina Daniel , Pinto Carlos , Rueda Fernando 
Published: July 2024

This study includes the assessment results for blends of premium and regular gasoline produced in Barrancabermeja's Refinery with 10vol% anhydrous ethanol and concentrations within this range (from 5vol% to 15vol%). The results may allow for a more precise definition of the characteristics for the desired blend. The survey basically focused on the Reid Vapor Pressure (RVP) and the antiknock index (RON+MON/2) properties, in order to determine the variations within these properties when 5vol%, 10vol%, and 15vol% anhydrous ethanol is added to the base fuels. Based on these results, the RVP and antiknock index were determined for the base fuels, blended with 10vol% ethanol, to comply with the quality standards required for Colombian fuels in year 2005. For the adjustment of the base fuel's RVP, a light-vapors, nitrogen-dragging stripper was designed and built. As for the adjustment of the base fuel's antiknock index, blends with straight naphta were made for lower index values, while blends with cracked naphta and high octane alkylate were made for higher index values. Having determined the specifications for base fuels, as required to blend them with 10vol% ethanol and meet the quality standards for Colombian gasoline in year 2005, water tolerance for the blends was estimated at temperature ranges of 273 K to 313 K.
Rekonstruksi kepemimpinan pendidikan progresif dalam meningkatkan kualitas pembelajaran: teori dan praktik
Authors: Faridli Efi Miftah , Sumardjoko Bambang , Prayitno Harun Joko , Narimo Sabar 
Published: July 2024

Pendidikan yang berkualitas sangat dipengaruhi oleh berbagai aspek penunjang, salah satunya pola kepemimpinan yang progresif, karena memiliki dampak yang signifikan terhadap perkembangan siswa, kemajuan institusi pendidikan, dan masyarakat secara keseluruhan. Penelitian ini bertujuan untuk menyelidiki peran kepemimpinan progresif dalam meningkatkan kualitas pendidikan dengan fokus pada pengaruhnya terhadap perkembangan siswa, kemajuan institusi pendidikan, dan masyarakat secara keseluruhan. Metode penelitian adalah studi literatur, survei, wawancara, dan studi kasus. Hasil penelitian menunjukkan bahwan kepemimpinan progresif dalam pendidikan tidak hanya sekedar mengikuti tren baru, tetapi merupakan sikap dan tindakan yang berorientasi pada masa depan dengan tujuan menciptakan lingkungan pendidikan yang kompetitif. Lembaga pendidikan dapat menjadi pusat pengembangan potensi siswa dan tempat pemberdayaan mereka untuk mencapai kesuksesan pribadi dan sosial. Kepemimpinan pendidikan progresif menekankan pada pembaharuan, pengembangan, dan penerapan strategi yang inovatif untuk memajukan kualitas pendidikan. Implikasi dari penelitian ini menunjukkan bahwa lembaga pendidikan memiliki potensi besar untuk menjadi pusat pengembangan potensi siswa dan tempat pemberdayaan mereka untuk mencapai kesuksesan pribadi dan sosial. penelitian ini memberikan landasan penting bagi pengembangan kebijakan dan praktik kepemimpinan yang progresif dalam konteks pendidikan, dengan harapan dapat meningkatkan mutu dan relevansi pendidikan dalam menghadapi tantangan masa depan.