bluuebunny/crossref_metadata_2025_split huggingface dataset:
STATUS PEMANFAATAN SUMBERDAYA IKAN DEMERSAL DI DUMAI, RIAU
Authors: Arkham Muhammad Nur , Kelana Perdana Putra , Pramesthy Tyas Dita , Djunaidi  , Roza Sri Yenica , Ikhsan Suci Asrina 
Published: December 2021

Kota Dumai memiliki nelayan perikanan tangkap skala kecil yang menjadikan ikan demersal sebagai target utama. Daerah penangkapan ikan demersal yang relatif mudah dan dekat untuk diakses serta memiliki milai ekonomis yang cukup tinggi menjadi daya tarik bagi nelayan untuk melakukan kegiatan penangkapan ikan. Tujuan penelitian ini adalah untuk menghitung tingkat pemanfaatan, nilai MSY dan JTB di perairan Dumai. Penelitian ini menggunakan data sekunder yaitu jumlah trip dan jumlah hasil tangkapan jaring insang, sondong dan pengerih sejak tahun 2014 hingga 2018. Nilai MSY dan upaya optimum dianalisis menggunakan model produksi surplus oleh Schaefer. Persamaan regresi antara upaya standar (f) dengan CPUE adalah dengan nilai R2 = 0,9273. Jumlah upaya optimum (Fopt) adalah 4.604 trip/tahun dan nilai MSY sebesar 918,47 ton/tahun. Rata-rata tingkat pemanfaatan sumberdaya ikan mencapai 83% termasuk dalam kategori optimum. Nilai JTB ikan demersal sebesar 734,78 ton. Status pemanfaatan ikan demersal di perairan Dumai masuk kedalam kategori tangkap berlebih. Perlu ada pengaturan ulang mengenai upaya penangkapan (f) guna menjaga keberlanjutan sumber daya ikan dan kegiatan perikanan tangkap ikan demersal di Kota Dumai.
Kata kunci: CPUE, Dumai, ikan demersal, MSY
Perfusion Strategy for Minimally Invasive Cardiac Surgery
Authors: Babliak Oleksandr D. , Demianenko Volodymyr M. , Marchenko Anton I. , Pidgaina Lilia V. , Babliak Dmytro Ye. , Stohov Oleksii S. 
Published: December 2021

Minimally invasive cardiac surgery (MICS) has a number of proven advantages compared to median sternotomy. Safe cannulation and perfusion are some of the main components of the success of MICS.
The aim. To present our perfusion strategy and describe the methods of cannulation, technical features, contraindications and potential complications.
Materials and methods. We examined the results of 1088 adult patients who underwent primary cardiac surgery in our hospital (coronary artery bypass grafting, valve surgery, aortic surgery, left ventricle repair, congenital cardiac surgery and combined procedures) from July 2017 to May 2021. Of these, 851 patients were qualified for MICS. To select a safe cannulation strategy, we performed contrast enhanced computed tomography (CT) of the aorta and main branches for all the patients, also we calculated the body surface area according to the DuBois and DuBois formula.
Results. We performed 838 minimally invasive on-pump procedures, which is 98.5% of all patients qualified for MICS. According to the results of the preoperative CT scan, 13 (1.5%) patients were not operated with the minimally invasive approach due to the hazards related to the provision of cardiopulmonary bypass. Peripheral cannulation was performed in 754 (90%) patients and an alternative cannulation site was selected in 62 (8.2%) patients based on preoperative CT data. There were 10 (1.32%) patients who developed major complications (stroke, acute aortic dissection, acute renal failure requiring hemodialysis) after peripheral cannulation.
Conclusions. Preoperative CT scan is mandatory for planning a perfusion strategy in minimally invasive cardiac surgery. The required surgical techniques should include cannulation of the right and left femoral and right axillary arteries.
Aortic Root Enlargement during Aortic Valve Replacement in Adults
Authors: Furman Miroslav M. , Varbanets Sergey V. , Dovgan Oleksandr M. 
Published: December 2021

Aortic valve replacement is a gold standard in the treatment of patients with severe aortic stenosis or combined aortic pathology. However, aortic valve pathology is often associated with a narrow aortic orifice, particularly in patients with severe aortic stenosis. In 1978, Rahimtoola first described the term of prosthesis-patient mismatch. He noted that effective orifice area of the prosthesis is smaller than that of the native valve. To minimize this complication, there are several surgical strategies: aortic root enlargement (ARE), implantation of a frameless biological prosthesis in the native position, neocuspidalization procedure, Ross procedure, aortic root replacement with xenograft or homograft. ARE is an excellent option, however, some authors outline additional perioperative risks.
The aim. To analyze immediate results of ARE during isolated aortic valve replacement and in cases when it is combined with other heart pathologies.
Materials and methods. Our study included 63 patients who underwent ARE. Isolated aortic valve replacement was performed in the majority of cases, but often aortic root replacement procedure was combined with coronary artery bypass grafting.
Results and discussion. One of 63 patients died (hospital mortality 1.6%) at an early hospital stage (30 postoperative days). Measurement of the aortic valve ring was performed by two methods, through preoperative echocardiography and perioperative measurement using a valve sizer. However, perioperative dimension was chosen as the basis for the calculations. In 62 patients, the perioperative diameter of the aortic valve ring ranged from 19 to 23 mm, only one patient had a diameter of 24 mm. According to our findings, ARE enabled to achieve an average aortic ring size increase of 2.68 cm2 (from 1.5 to 3.4 cm2) and to prevent prosthesis-patient mismatch in 42 (66.7%) cases.
Conclusions. Prosthesis-patient mismatch is considered a serious complication in the postoperative period. Narrow aortic root is a common pathology that should be considered during surgery. ARE is a safe procedure and is not associated with an increased risk of mortality and complications.
Correlation of the Myocardial Viability Score with Left Ventricular Ejection Fraction in Patients after Revascularization
Authors: Kundina Viktoriia V. , Babkina Tetiana M. 
Published: December 2021

Background. Coronary artery disease (CAD) is one of the main causes of cardiovascular death. The severity of CAD is determined by the left ventricular (LV) dysfunction which is caused by coronary atherosclerosis. The possibility of restoring functional capacity of the heart (ejection fraction (EF)) depends on hibernating volume of the myocardium which is a pitfall in revascularization.
The aim. To assess the correlation between the score of the viable myocardium (VM) and EF with systolic dysfunction and preserved LVEF in patients after coronary artery bypass grafting (CABG).
Material and methods. To implement the set clinical tasks, 62 patients with CAD with preserved systolic function and systolic dysfunction were examined, 35 (56%) patients had heart failure with an EF of 49% (group 2) and less. Twenty-seven (44%) patients had preserved ventricular function of 50% or more (group 1). The mean age of the subjects was 59.6 ± 8.2 years. Five (8.0%) patients denied myocardial infarction. Myocardial scintigraphy was performed on Infinia Hawkeye all purpose imaging system (GE, USA) with integrated CT. The studies were performed in SPECT and SPECT/CT with ECG synchronization (gated SPECT) modes. 99mTc-MIBI with an activity of 555–740 MBq was used. Myocardial scintigraphy was performed in the course of treatment (before CABG and after CABG) according to the One Day Rest protocol. A total of 124 scintigraphic studies were performed.
Results and discussion. Samples of the studied patients “before” and “after” treatment were compared using Wilcoxon matched-pairs test. In group 1 in patients with EF ≥ 50% the score of VM increased after CABG with values from 81.7 CI 95% [78.5; 84.9] to 86.9 CI 95% [84.4; 89.3]. However, the EF itself before and after treatment remained the same or slightly decreased amounting to 54.9 CI 95% [50.8; 59.1] and 52.5 CI 95% [48.6; 56.3]. In group 2 in patients with EF ≤ 49% the amount of VM increased after CABG with values from 59.9 CI 95% [54.9; 64.8] to 65.9 CI 95% [60.2; 71.6] (p = 0.00005). However, the EF itself before and after treatment remained the same, amounting to 28.9 CI 95% [24.8; 32.9] and 31.1 CI 95% [26.8; 35.5] (p = 0.19).
Conclusions. Myocardial viability in both study groups significantly improved, given the high statistical reliability of the results, although LVEF either remained unchanged or changed slightly. Improvement of static parameters (wall perfusion) also confirms positive effect of revascularization with constant dynamic parameters (EF, end-diastolic volume) or statistically insignificant changes thereof. There is no direct correlation between VM and EF.
NT-proBNP as an Additional Marker of Significant Coronary Atherosclerotic Lesions
Authors: Marchenko Oksana Yu. , Rudenko Nadiya M. , Dzhun Yana Yu. 
Published: December 2021

Coronary artery disease (CAD) is the leading cause for morbidity and mortality both in Ukraine and in the world, so the relevance of this problem for the society is undeniable. The priority is still to study the factors that affect both more severe CAD in patients with chronic coronary syndrome and after myocardial revascularization.
The aim. To investigate the patterns of correlation between blood level of N-terminal pro-B-type natriuretic peptide (NT-proBNP) and CAD severity, especially in patients with multivessel lesion, to confirm its status of a useful additional marker for assessing the condition of cardiovascular system and one of the instruments to affect the tactics of treatment.
Materials and methods. The study is based on data obtained from a prospective analysis of 40 patients at the age of 51 to 82 years old from January to December 2019, whose complaints could indicate the CAD. All the patients underwent a comprehensive clinical and laboratory examination (complete blood count, biochemical blood test). The main instrumental examination method was coronary angiography; the patients were divided into 2 groups on the basis of the examination results. The quantitative degree of lesion was assessed using the SYNTAX Score for each patient.
Results. The groups were comparable in terms of age, sex, and comorbidities. The groups differed significantly in terms of body mass index. Moreover, the groups differed in the level of the following biochemical markers: NT-proBNP (p=0.0001), cholesterol (p=0.02), low-density lipoproteins (p=0.009), creatinine (p=0.02), glomerular filtration rate (p=0.08). A significant correlation was found between the NT-proBNP level and the degree of CAD ρ=0.718 (p=0.0001).
Conclusion. NT-proBNP significantly correlates with the SYNTAX Score and is the highest in the group of patients with multivessel coronary disease. This indicator requires further study as an additional marker for assessing the state of the cardiovascular system and can influence the choice of treatment.
INDONESIAN LEARNING: TOWARDS THE ACADEMIC ACHIEVEMENT OF COMMUNICATIVE COMPETENCE
Authors: Sya Mega Febriani , Adri Helmia Tasti , Kholik Abdul , Sudjani Deski Halim , Latifah Zahra Khusnul , Uslan  
Published: December 2021

Academic achievement becomes very important in the language learning process. Student performance, student progress and student potential are essential to measuring academic achievement or learning outcomes. This study aims to identify the relationship of final learning achievement with the student learning experience to improve students’ language skills. Research focuses on what skills are the final achievements of learning and observe whether the learning experience can support the plan of acquisition of learning achievements. Research design is qualitative content analysis. The population used is the semester learning plan document of the Indonesian language and literature learning model SD. Sample selection uses the method of sampling units by selectively distinguishing the units to be analyzed based on the scope of the research problem. Data analysis using interpretive approaches: Reducing data to manageable representations: summarizing or simplifying data; inferring contextual phenomena: relying on analytical constructs or models of the chosen context as warrants; Narrating the answers to content analysts’ questions amount to make the result comprehensible to others. Based on the study results, the learning experience is determined based on the end goal of learning. Discuss in-depth the concept of learning the Indonesian language and literature in elementary schools based on multiliterate, integrative, and differentiated learning concepts.
Riesgo de Síndrome de Burnout en profesionales médicos de la ciudad de Córdoba, Argentina
Authors: Polacov Silvina , Barrionuevo Battistini Ivo , Barroso Gimena , Cravero Brenda , D'Alessandro Tania , Allende Guillermo Einer , Boni Sergio Ricardo , Maldini ´Carla Sol , Pepe Gustavo Alberto , Gobbi Carla Andrea 
Published: December 2021

Introducción: El Síndrome de Burnout es un trastorno adaptativo, crónico, asociado con inadecuado afrontamiento de las demandas psicológicas del trabajo, es el origen de daño laboral de causa psicosocial más importante. Objetivo: Conocer el riesgo de Burnout en médicos de la ciudad de Córdoba, su relación con factores sociodemográficos y con especialidades clínicas o quirúrgicas. Métodos: Se realizó un estudio observacional de corte transversal en 10 centros asistenciales públicos y privados de la Ciudad de Córdoba. Se entrevistaron 483 médicos, recogiendo variables sociodemográficas y cuestionario Maslach Burnout Inventory evaluando el riesgo de Burnout. La edad fue estratificada desde los 20 años, de 10 en 10 hasta 60. p < 0,05 fue significativa. Resultados: Se entrevistaron 483 médicos, 62,1% mujeres, el 70% entre los 20 y los 40 años; 54,2% solteros, 42.9% ejerció < de 5 años la profesión; el 66 del total (16,5%) tuvo alto riesgo de Burnout, las variables asociadas fueron: trabajar en un establecimiento público (p < 0,00001), ser soltero (p < 0,009), trabajar más de 60 hs (p < 0,001), dormir menos de 42 hs semanales (p< 0,005), tener entre 20 y 29 años (p <0.0005) y tener menos de cinco años de profesión p < 0,0002; se identificó como factor protector tener hijos (p < 0,006). No hubo diferencias entre especialidades clínicas y quirúrgicas. Conclusiones: Los profesionales jóvenes, con menor contención familiar y mayor demanda laboral son los que presentan mayor riesgo de Burnout. Se deberían identificar y desarrollar mecanismos para proteger y tratar los afectados.
Linfoma primario de las efusiones con afectación extracavitaria multisistémica en HIV negativo diagnosticado mediante autopsia
Authors: Milanesio Martín , Sánchez Ana Victoria , Guanchiale Luciana , Kaplan Ruth Lía 
Published: December 2021

Introducción: El Linfoma primario de las efusiones es un Linfoma no Hodgkin de alto grado y escasa frecuencia producido por el virus Herpes Humano 8. Afecta principalmente a individuos infectados por el virus de la inmunodeficiencia humana (HIV), aunque también se ha descripto en HIV negativos. Se caracteriza por la presencia de derrame linfomatoso maligno en las distintas cavidades serosas siendo la cavidad pleural la más afectada. La afectación fuera de las serosas es muy poco frecuente. El diagnóstico se realiza por análisis del líquido acumulado en las serosas o mediante biopsia de las mismas demostrando la presencia de linfocitos neoplásicos característicos. El tratamiento consiste en distintos regímenes de quimioterapia asociados a terapia antirretroviral en pacientes HIV positivos. El pronóstico de esta enfermedad es pobre, con una supervivencia de escasos meses posteriores al diagnóstico.
Metodología: Presentamos el caso de un varón de 83 años, HIV negativo, con derrame pleural izquierdo y ascitis, observándose un líquido con predominio de mononucleares sin presencia de células malignas al examen citológico.
Resultados: El paciente falleció y mediante la autopsia se llegó al diagnóstico de Linfoma primario de las efusiones, observándose además afectación extracavitaria multisistémica.
Conclusión: Si bien el Linfoma primario de las efusiones afecta preferentemente a individuos HIV positivos, la ausencia de infección por HIV no debe descartar la enfermedad. El compromiso extracavitario debe ser buscado aún en pacientes asintomáticos.
Growth Evaluation of Native Chicken on Different Type of Hen Body Weight
Authors: Sutopo Sutopo , Kurnianto E. , Sutiyono Sutiyono , Setiatin E. T. , Ondho Y. S. , Lestari D. A. , Setiaji A. , Suryawijaya A. , Samsudewa D. 
Published: December 2021

The aim of this research is to measure effect of hen body weight to the growth rate of native chicken. Ten native hens divided by two classifications (heavy and light body weight), 2 native roosters, 58 (from hen with heavy body weight) and 62 (from hen with light body weight) female day old chicks (DoC) use in this research. Hatching machine, communal cage, feeder tray, drinking jar, balance body weight and vernier calliper, were use in this research. Body weight and morphometric of female native chicken from DoC up to 10 week was measured. T-test analysis was used with help of SPSS 25. The results showed that the hen with heavy body weight resulted to the higher morphometric and body weight of female native chicken (P<0.05) on 7 and 8 week, respectively. The growth rate gain of female native chicken hatched by the hen with heavy body weight is significantly difference (P<0.05) on body weight. The conclusion is the hen with heavy body weight will result to the higher body weight and morphometric of female native chicken.
Study on the Physical Quality of Complete Rabbit Feed Pellets Using Different Forage Protein Sources
Authors: Foenay T. A. Y. , Koni T. N. I. 
Published: December 2021

This study evaluated the physical quality of complete rabbit feed containing different legumes. The study design was an experimental method using a Completely Randomized Design with four treatments and five replications. The treatments were as follows: P1 =complete feed without legume;P2 = complete feed with 10% moringa leaves meal; P3 = complete feed with 10% Leucaena leaves meal; P4 = complete feed with 10% turi leaves meal. Parameters measured were hardness, durability, density and specific gravity of rabbit pellet complete feed. Data analysis uses analysis of variance and if there is a treatment with a significant effect, then it is continued with Duncan's multiple distance test. The results showed that legumes had no significant effect on impact resistance, friction resistance, pile density, and specific gravity of the rabbit pellets produced. It was concluded that the use of legumes, namely Moringa, lamtoro and turi did not reduce the physical quality of the pellets.
How the mind comes to life: The physics and metaphysics of dissipative structures
Authors: Harisch Klaus 
Published: December 2021

This monograph tries to illuminate the process of live and mind by focusing on a thermodynamic perspective. In doing so a fundamental link is offered between psychology and neuroscience on the one hand and physics on the other hand. Non-equilibrium thermodynamics applied on human structures leads to explanations for highly complex processes like self-healing, the forecast of the structuring of stable neuronal connections or the importance of feedback loops for the formation of metastable neuronal structures. Besides energy there is evidence for the necessity of a second concept: information. To integrate this into a resilient ontology a new definition for „biological information” is required and will be provided. Transferring in analogy the thermodynamic framework of energy to biological information leads to what I shall call Dual Dissipation Theory (DDT). Its essentials will be presented and a short introduction, why dualism can be supported if introduced correctly. Finally, DDT suggests the following insight:The common concept for life is „energy flow“ and „information flow“, grounded in dissipative structures. It could offer a plausible heuristic for the explanation of mind and consciousness closing the gap from physics, i.e. non-ecquilibrium thermodynamics, to neuroscience and psychology.
Factors Influencing College Choice of Nepalese Undergraduate Students
Authors: Silwal Prem Prasad , Baral Raj Kumar 
Published: December 2021

Background: College choice decision remains one of the major issues for the students and parents especially during the time of admission.
Objective: Understanding this problem, this research, taking colleges of Tribhuvan University and Kathmandu University as the samples, assesses which of the characteristics― institutional, marketing, and social are more dominant in this decision.
Method: The study, based on the primary survey; uses the questionnaire to collect data among the management students of bachelor’s level in Lalitpur and Kathmandu district, shows that academic program, quality of education, and social factors are the key factors that impact college choice decision. The study employs convenient sampling techniques. The tendency of students to make college choice decisions depends on the colleges’ academic programs that they have concentrated.
Result: The results suggest that college should focus their eyes to apply different types of academic programs, adopt quality education in terms of appointing highly qualified faculties and even contribute certain margin to social support, employability of the students over the market and position of enrolment of the students in higher education. These characteristics enable the colleges to run and sustain in the long run.
Conclusion: To mitigate the moderating impact on college choice, the variable gender is used, however, its impact on the relationship of college fees and college choice is not supported by the study.
Eksplorasi Etnomatematika Pada Benteng Belgica Di Neira Maluku Tengah
Authors: Fajarwati Agustri Amelia , Faidah Alifiya Nur , Joelian Elma , Hakiki Hafidzah Diina , Purwoko Riawan Yudi 
Published: December 2021

Ethnomathematics is the study of mathematics learning. One of the cultural assets in Indonesia is Belgica Fort which is located on Neira Island, Central Maluku, which has a pentagon shape on the outside. The purpose of this research is to know the history of Belgica Fort and to know the construction of Belgica Fort building which is associated with mathematics in geometric shapes. The research methodÂ is a document analysis by analyzing and reducing data from several articles that become references, with the conclusion that the Belgica Fort building is composed of various forms of flat and spatial shapes. The results of his research that learning mathematics on geometry material associated with Belgica Fort can be used as teaching materials and encourage students to be active in exploring their knowledge through observations made in this ethnomathematics-based learning.Â Keywords: Fort Belgica, Ethnomathematics, Geometry
Bauran Komunikasi Pemasaran dalam Memasarkan Destinasi Wisata Alam Saat Pandemi COVID-19
Authors: Anggoro Gilang D. , Dunan Amri , Karman Karman 
Published: December 2021

Setiap industri pariwisata harus mempraktikkan komunikasi pariwisata, termasuk saat pandemi. Komunikasi pariwisata yang baik membantu industri dalam memasarkan produk atau jasanya. Oleh karena itu, diperlukan strategi untuk meningkatkan potensi keberhasilan dan meminimalkan risiko. Penelitian ini bertujuan untuk mendeskripsikan strategi komunikasi pariwisata pada masa pandemi Covid-19 dengan mengadopsi konsep Marketing Mix of Communication. Metode penelitian ini adalah kualitatif dengan pendekatan studi kasus. Pengumpulan data dilakukan dengan wawancara mendalam, observasi, dan dokumentasi. Hasil penelitian menunjukkan bahwa strategi Marketing Mix of Communication pariwisata mereka yaitu dengan iklan, personal selling, sales promotion, direct marketing, public relations, dan WOM. Manajemen juga mengutamakan peran vital dalam penyampaian informasi tentang Covid-19 untuk menjaga pariwisata, dan konten yang diberikan dapat bermanfaat bagi wisatawan.