bluuebunny/crossref_metadata_2025 huggingface dataset:
Intelligent Analysis of the Ecological State of Environment with Application of Distributed Expertise (on the Example of Bryansk Region)
Authors: Geger Emilia , Podvesovskii Aleksandr , Mikhaleva Oksana , Korsakov Anton
Published: December 2020

The paper considers the problem of assessing the ecological state of the environment in the region. An approach to the intelligent analysis and estimation of anthropo-technogenic pollution of a territory with the application of integral indicators which take into account environmental pollution is proposed. To estimate the integral indicator parameters, distributed group expertise technology is used, supporting a mechanism for control of expert estimates consistency, taking into account experts’ competency in the relevant subject areas. Using the proposed approach, the problem of risk assessment of environmental impact of chemical air pollutants has been solved. Methods for control of expert estimates consistency based on the procedure of feedback with experts made it possible to increase the reliability of evaluation results and also to decrease the influence of a random expert error on the final assessment. The obtained aggregated risk estimates were used to construct, calculate and visualize the integral indicator of radioactive and chemical contamination of the districts of Bryansk region.
Design Features of the User Interface of the Pipeline Pressure Control Monitoring System
Authors: Afonina Elena , Levaya Marina , Levyy Igor
Published: December 2020

For control and regulation of hydraulic systems, especially, oil pumping stations, automatic pressure control systems (APCS) are used. Using it, the monitoring, controlling, and adjusting the operation of technological equipment, optimization of modes, and other tasks that require direct human participation become possible. The operator (or dispatcher) interacts with the system via a human-machine interface. The monitoring system includes programs for collecting, processing, displaying, and archiving information about the object of observation and control. Well-suited and being put to the right user interface design promotes not only the effective interaction of the operator with the system in normal conditions but also prevents errors and helps to find a solution in a dangerous or emergency swiftly. This paper presents a software package designed for real-time monitoring and regulation of pipeline operation. A system simulation model is provided for the teaching and training of site personnel.
Simulation of Quadcopter's Complex Spatial Motion in Virtual Environment Systems
Authors: Strashnov Evgeny , Mikhaylyuk Mikhail
Published: December 2020

The paper considers the task of simulation quadcopter motion control in vir-tual environment systems. The proposed solution of this task is based on the application of a mathematical model of quadcopter dynamics, in which quaternion and axis-angle representation of the attitude are used. In this work, a feedback linearization method for the equations of quadcopter and its elec-tric motors dynamics is proposed to control the quadcopter. With the application of this approach, quadcopter motion is achieved by the obtained expressions for linear acceleration and the desired quaternion. The proposed methods and approaches for quadcopter simulation were implemented in the software package of virtual environment and tested using examples of the motion of a quadcopter model along a given path.
Assessment of the early results of rectal cancer treatment by laparoscopic total mesorectal excision associated with preoperative short-course radiation
Authors: Nguyễn Anh Tuấn ,   Nguyễn Tô Hoài, Bùi Quang Biểu
Published: December 2020

Tóm tắt
Đặt vấn đề: Đánh giá kết quả phẫu thuật nội soi điều trị ung thư trực tràng 1/3 giữa, dưới giai đoạn II, III có xạ trị ngắn ngày trước mổ.
Phương pháp nghiên cứu: 59 người bệnh ung thư trực tràng 1/3 giữa, dưới, giai đoạn II, III được phẫu thuật nội soi cắt bỏ toàn bộ mạc treo trực tràng có xạ trị ngắn ngày trước mổ tại Bệnh viện TƯQĐ 108 từ 08/2015 đến 08/2017. Ghi nhận các số liệu về đặc điểm người bệnh, đặc điểm tổn thương, độc tính sớm, độc tính muộn, đáp ứng sau xạ và kết quả phẫu thuật.
Kết quả: Tuổi trung bình 58,4 +9,93 (34-81 tuổi). 49,2% u ở 1/3 dưới và 50,8% u 1/3 giữa trực tràng. Đánh giá giai đoạn bệnh trước mổ trên MRI 3.0 tesla: giai đoạn II: 10,2 %, giai đoạn III: 89,8%. Có sự thay đổi khi đánh giá giải phẫu bệnh sau mổ giai đoạn I: 20,3%, giai đoạn II: 54,2% và giai đoạn III: 25,5%. 11,9% người bệnh biểu hiện tác dụng phụ sớm sớm độ 1. 8,5% người bệnh biểu | hiện tác dụng phụ muộn độ 2, 3. Thời gian phẫu thuật trung bình 142 +35 phút. Chuyển mổ mở 5,1%. Tai biến 5,1%. Biến chứng 28,9%. Thời gian nằm viện trung bình sau mổ 10,7 +4,6 ngày. 77,9% đáp ứng sau xạ từ độ 0 đến độ 4.
Kết luận: Phẫu thuật nội soi cắt bỏ toàn bộ mạc treo trực tràng có thể thực hiện | thuận lợi trên nhóm người bệnh ung thư trực tràng 1/3 giữa, dưới, giai đoạn II, III được xạ trị ngắn ngày trước mổ.
Abstract
Introduction: To assess the results of laparoscopic surgery treatment for middle and low rectal cancer, of stage II or III with preoperative short-course radiation.
Material and Methods: 59 patients with resectable middle and low rectal cancer were treated with short-course radiation combined with laparoscopic total mesorectal excision in 108 Military Central Hospital, from 08/2015 to 08/2017. The patients' data was recorded: patients' and tumors' characteristics, acute and late toxicity of the preoperative radiotherapy, response after preoperative radiotherapy and result of the operation.
Results: Mean age was 58.4 + 9.93 (34-81 years). Low rectal cancer was 49.2% and middle rectal cancer was 50.8%. Diagnosis was based on MRI 3.0 Tesla with stage II: 10.2% and stage III: 89.8%. Pathology staging with stage I: 20.3%, stage II: 54.2%, stage III: 25.5. 11.9 % patients have acute toxicity of the preoperative radiotherapy with grade 1 and 85% have late toxicity of the preoperative radiotherapy grade 2, 3. Mean operative time was 142 + 35 minutes. Conversion rate to open surgery was 5.1%, intraoperative complication was 5.1%. Early complication kate was 28.9%. Mean postoperative time was 10.7 + 4.6 days. 77.9% patients have response from grade 1 to grade 4 after preoperative radiotherapy.
Conclusion: Laparoscopic total mesorectal excision is favorable for middle, low rectal cancer stage II, III with preoperative short-course radiation. Keyword: Laparoscpic surgery, rectal cancer, short-course radiation.
Initial results of laparoscopic partial nephrectomy in the treatment of renal tumors in Thanh Hoa General Hospital
Authors:   Trương Thanh Tùng, Nguyễn Anh Lương
Published: December 2020

Tóm tắt
Đặt vấn đề: Đánh giá kết quả bước đầu của phẫu thuật nội soi cắt bán phần thận điều trị u thận tại bệnh viện Đa khoa tỉnh Thanh Hóa.Phương pháp nghiên cứu: Bao gồm 7 người bệnh (4 nữ, 3 nam) được chẩn đoán u thận trên chụp CLVT và được PTNS cắt bán phần thận tại Bệnh viện Đa khoa tỉnh Thanh Hóa từ tháng 11 năm 2016 đến tháng 07 năm 2017. Kết quả: Tuổi trung bình: 55,43 tuổi (38 - 67 tuổi). Kích thước u trung bình: 3,43 cm (3 - 5cm). U ở Giai đoạn pT1a có 5 người bệnh, giai đoạn pT1b có 2 người bệnh. Điểm độ phức tạp của khối u tính theo hệ thống R.E.N.A.L.: 4a có 2 người bệnh; 4p có 2 người bệnh; 5a, 6p, 8x đều có 1 người bệnh. Thời gian mổ trung bình: 135 phút. Thời gian thiếu máu nóng trung bình: 30,57 phút. Lượng máu mất trung bình: 87,14 ml. Tai biến chảy máu trong mổ có 1 người bệnh được chuyển sang phẫu thuật nội soi cắt thận triệt căn. Theo dõi sau 1 đến 3 tháng, chức năng thận phục hồi tốt không có biến chứng, di căn hay tái phát tại chỗ. Kết luận: PTNS cắt bán phần thận trong điều trị u thận có thể thực hiện được tại các bệnh viện tuyến tỉnh, với lựa chọn phù hợp ban đầu cho những khối u thận kích thước ≤ 4 cm. Tuy nhiên, để thực hiện tốt được kỹ thuật này thì cơ sở điều trị cần phải có trang thiết bị đầy đủ, phẫu thuật viên có kinh nghiệm phẫu thuật nội soi và được đào tạo chuyên sâu.
Abstract
Introduction: To evaluate initial results of laparoscopic partial nephrectomy in the treatment of renal tumors in Thanh Hoa General Hospital.
Material and Methods: 7 patients (4 females, 3 males) were diagnosed with renal tumors on CT scans and underwent laparoscopic partial nephrectomy at Thanh Hoa General Hospital from November 2016 to July 2017.

Results: The mean age is 55.43 years old. Average tumor size is 3.43 cm. There are 5 patients in the pT1a stage, 2 patients in the pT1b stage. The R.E.N.A.L. nephrometry scoring: 2 patients in 4a; 2 patients in 4p; 1 patient in 5a; 1 patient in 6p; 1 patient in 8x. Average operative time is 135 minutes. Average warm-ischaemic time is 30.57 minutes. Blood loss average 87,14 ml. Haemorrhagic complication in 1 patient required convert conversionto laparoscopic radical nephrectomy. After 1 - 3 months of follow-up, renal function recovered well without complication, metastasis, or local recurrence.

Conclusion: Laparoscopic partial nephrectomy in the treatment of renal tumors is a surgical procedure that can be performed at provincial hospitals, with initial indications for renal tumors size ≤ 4 cm. However, in order to perform well in this technique, the facility must have adequate equipments, laparoscopically - experienced surgeons and intensive training.

Keyword: Partial nephrectomy; renal tumor; laparoscopic surgery.
The Effective School Strategic Plan Implementation: A Best Practice of School Improvement
Authors: Nugraha Dera , Reftyawati Dian , Sari Yeasy Agustina
Published: December 2020

Schools face the social changes quickly that was caused by the global village phenomenon. It makes schools’ strategic plans and their implementation strategies becoming important topics to be discussed. This study aimed to know how the implementation of State of Junior High School (SMP) Islam Cendekia Cianjur strategic plan during academic year 2018/2019. A school in West Java addresses religious and globally competed graduation. The research used qualitative-descriptive. Collecting data used observation, interview, and document analysis instruments. The finding showed that SMP Islam Cendekia Cianjur achieved maximum result in implementing annual work plan. Almost all program objectives were realized, some even exceeded the annual targets set due to their well-organized of strategic plan and the accuracy of its implementation strategy. The collaboration of principal’s managerial and social competencies and participative leadership approach have proven effectively in embodying school annual work plan. The principal succeed in improving educators’ competencies and their working performances, as well as in collaboration with various potential parties. The challenges were related to school human resources.

Keywords: Effective School. Strategic Plan Implementation
Peningkatan Prestasi Belajar Matematika dengan Menggunakan Metode Pembelajaran Kooperatif Tipe TGT (Team Games Tournament) Pada Siswa Kelas VII Negeri 4 Siborongborong
Authors: Hutagalung S Lumumba
Published: December 2020

The purpose of this article was to determine the effect of cooperative learning TGT (Team Games Tournament) in learning outcomes of Mathematics material numbers for the seventh grade students of State of Junior High School (SMPN) 4 Siborongborong, to find out how the high students’ learning achievement by applying  TGT type cooperative learning method. This research used classroom action research as much as three cycles. Each round consists of four stages, namely design, activity and observation, reflection, and refinement. The targets of this research were students of class VII SMPN 4 Siborongborong, Siborongborong District. The data obtained in the form of formative test results, observation sheets of teaching and learning activities. The result found that the student achievement increased from cycle I up to cycle III namely, cycle I (66.67%), cycle II (79.17%), cycle III (91.67%). The conclusion of this study was the cooperative method of the TGT model have a positive effect on student achievement in class VII SMPN 4 Siborongborong and it’s learning model can be used as an alternative to mathematics learning.

Keywords: Cooperative Method, TGT (Team Games Tournament), Students’ Learning Achievement
Supervisi Kepala Sekolah Dalam Penggunaan Media Pembelajaran di Sekolah Dasar
Authors: Irianisyah Srie , Harapan Edi , Houtman Houtman
Published: December 2020

This study illustrated the implementation of supervision by school principals, particularly in the use of instructional media during the teaching and learning process in 90 Seberang Ulu II Palembang Primary Schools. This research method uses qualitative research methods and data collection is done by direct observation techniques in the field, documentation and interviews with teachers and school officials. The results showed that the implementation of academic supervision of the use of instructional media in Palembang 90 Primary School uses different techniques. To find out the use of instructional media objectively during the teaching and learning process, the Principal of State Elementary School 90 conducted a class visit supervision technique and also an individual meeting technique with a direct approach in accordance with a predetermined plan. There are factors that inhibit the implementation of academic supervision. The two factors influence the implementation of media use supervision learning in Palembang 90 Primary School. Nevertheless, all problems can be overcome until the supervision of the use of instructional media is carried out properly.

Keywords: Supervision of the Pprincipals, Learning Media
Pengaruh Komunikasi Interpersonal dan Disiplin Kerja Terhadap Kinerja Guru
Authors: Nilasari Suyeti , Fitria Happy , Rohana Rohana
Published: December 2020

This study determined the effect of interpersonal communication and work discipline on teacher performance. This study used quantitative methods. The sample of this research was 50 teachers of SMA Negeri 21 Palembang. Data were collected through questionnaires, documentation study, and observation. Data were analyzed using classical assumption test, multiple linear tests, coefficient of determination test and f-test. The results of this study indicate that there is partially and simultaneously significant effect of interpersonal communication and work discipline on the performance of teachers in SMA Negeri 21 Palembang.

Keywords: Teacher’s Performance, Interpersonal Communication, Work Discipline
Efektivitas Penggunaan Pembelajaran Daring Edmodo Berbantuan Quizstar untuk Meningkatkan Hasil Belajar Mahasiswa
Authors: Wajong Aaltje D.C , Ridwan Ridwan , Sangi Nontje
Published: December 2020

This article aims to determine the effectiveness of using Edmodo-based online learning with the help of Quizstar to improve student learning outcomes for electric lighting installations. The research method used quasi-experimental design. Observation sheets and documentary studies were analyzed in this study. The subject were 43 students that consist of experimental class 21 and the control class 22 students. The research was conducted in six meetings, each class, namely three times meetings. The results showed the value of t count <t table (3.501 <1.997). This means that Ho is rejected so that Ha is accepted or it can be said that online learning using quizstar assisted edmodo is more effective than learning blogs for students majoring in electrical engineering education for semester 3 in the electrical power installation course..

Key words: Edmodo, Quizstar, Edmodo-based Online Learning
Diversitate identitară în romanul românesc (1844-1932)
Authors: Pojoga Vlad , Gârdan Daiana , Baghiu Ștefan , Borza Cosmin , Minculete Iunis , Frătean Denisa
Published: December 2020

This study explores, using intersectionality and quantitative analysis, several axes that help shape the identity of the characters in the fictional worlds from a corpus of approximately 500 Romanian novels published between 1844 and 1932. They are gender, ethnicity/nationality, and class/work. It also briefly analyzes the gender gap in the production of the novel and examines the dynamics between the gender of the authors and the gender of the main character(s) and the person of the narration, by using metadata compiled by our research team and complex searches in the digital corpus.
Budget Education and Management as a Necessity for Well-Being and Financial Stability: Cluster & MDS Analysis
Authors: Lulaj Enkeleda
Published: December 2020

From antiquity to modernization, the budget is portrayed as one of the main factors in economic and social life. This paper analyzes the relationship between education and budget management as a necessity for well-being and financial stability. This shows that the use of knowledge during the budget cycle management depends on the education and combination of many factors coming from the environment where the individual or family operates. Here it is explained how Cluster and MDS analysis in interaction with other statistical tests explain the similarities or the differences between the observation groups from Kosovo, Western Balkan countries and European Countries (KO & EU & WBC), related to emergency funds, saving, registration of transactions of revenues or expenditures, financial decision-making, control and budgetary practices. The research is argued from empirical findings giving a new approach through detailed recommendations for variables of observation groups on the personal budget.
Study of the Nutritional Increase in Organic Composts Obtained by Aerobic Biostabilization in the Management of Food Wastes
Authors: Fagundes Pedro , Castro Fernanda , Santos Lucilaine , Castro Samuel , Lange Liséte
Published: December 2020

Composting is a sustainable alternative regarding an environmentally appropriate management of the organic fraction contained in the municipal solid wastes. To minimize nitrogen losses during the biostabilization process, due to ammonia volatilization, the present study aimed to evaluate the composting technique combined with the possible precipitation of struvite (MgNH4PO4.6H2O). A mixture containing food wastes was subjected to different experimental composting conditions with synthetic chemicals of magnesium and phosphorus—0.020 mol kg-1 (EXPI) and 1.8 mol kg-1 (EXPII), in addition to the control treatment (CONT). Experiments were carried out in closed systems, under forced aeration, over a period time of 56 days. In general, the addition of synthetic chemicals provided a nutritional increase in the organic composts obtained at the end of the experimental period in both conditions (EXPI and EXPII) compared to the treatment CONT. It was observed a total nitrogen conservation of about 21% and 122% in samples of composts obtained under the conditions EXPI and EXPII, respectively. Germination tests of lettuce seeds (Lactuca sativa) were also carried out to evaluate the agricultural applicability of the composts obtained in comparison with a commercial substrate (COM). A germination index with an average value of 87% was reached with the use of 100% of the compost obtained under the condition of greater conservation of total nitrogen (EXPII). Finally, the strategy considered for the conservation of nutrients in organic composts showed technical feasibility, indicating the formation of struvite and/or its analogues in the products obtained.
Leveranciers van elektriciteit en warmte in financiële moeilijkheden: een verkenning van de wettelijke regelingen
Authors: van Asperen P. , Koster H.
Published: December 2020

Leveranciers van elektriciteit en warmte in financiële moeilijkheden: een verkenning van de wettelijke regelingen

In dit artikel onderzoeken de auteurs de regelingen uit de Elektriciteitswet 1998 en de Warmtewet die gericht zijn op het voorkomen van financiële problemen dan wel de toezichthouder de mogelijkheid geven in te grijpen als dat nodig is. Deze regelingen zijn bedoeld ter bescherming van afnemers tegen die situaties waarbij een leverancier van elektriciteit of warmte in de financiële problemen komt. Zij vergelijken deze regelingen met de regelingen uit de Wet op het financieel toezicht of Europese regelgeving gericht op het voorkomen van financiële problemen bij banken. De auteurs kiezen voor deze vergelijking met banken omdat deze ondernemingen, net als bij elektriciteit en warmte, een maatschappelijke functie kunnen vervullen. De vraag die zij stellen, is of de regelingen voor banken een inspiratiebron kunnen zijn voor het waarborgen van de belangen van de afnemers van elektriciteit en warmte.
Foundations of the aspect of health care and two hundred years since the birth of Florence Nightingale 1820-1910
Authors: Peličić Damir
Published: December 2020

Nursery has existed throughout history and it dates back to the very beginning of humankind. It was mentioned in church books and other written texts but not as a skill or science, but as an occupation reserved for the members of monastic orders, and also for women, that is, mothers, and nuns. First, nursing was an occupation, then a skill, but at the end of the 20th century, it became a scientific discipline. Florence Nightingale is certainly one of the most significant women in the history of nursing, medicine, and society in general because she is the pioneer of the nursing profession that has continuity up to nowadays. She was born on May 12, 1820, in Florence, Italy and died on August 13, 1910, in London. Florence Nightingale worked as a nurse, organizer, researcher, statistician, reformer, writer and a teacher. She reformed nursery and public health. In 1860, she established the school for nurses within St. Thomas' Hospital and she took care of every protégé. In spite of all obstacles, which she was faced with, and the unenviable position of women in the 19th century, she made a huge move that changed the context of this profession forever. She had a huge influence on the Swiss philanthropist Henry Dunant (1828-1910), who was the founder of the Red Cross. In 1867, the International Council of Nurses proclaimed that her birthday would be the International Nurses Day. She was the first woman who was awarded the Medal of virtues. In 1908, she was conferred the Order of Merit by King Edward. She wrote more than 200 books and the Pledge.
Research progress of two-dimensional transition metal dichalcogenide phase transition methods
Authors: Zhang Hao-Zhe , Xu Chun-Yan , Nan Hai-Yan , Xiao Shao-Qing , Gu Xiao-Feng ,   Engineering Research Center of IOT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
Published: December 2020

Following traditional semiconductors such as silicon and GaAs, in recent years the two-dimensional materials have attracted attention in the field of optoelectronic devices, thermoelectric devices and energy storage and conversion due to their many peculiar properties. However, the normal two-dimensional materials such as graphene, cannot be well used in the field of optoelectronics due to the lack of a band gap, and the black phosphorus is also greatly limited in practical applications due to its instability in the air. The two-dimensional transition metal dichalcogenides have attracted more attention due to the different atomic structures, adjustable energy band and excellent photoelectric properties. There are different crystal phases in transition metal dichalcogenides, some of which are stable in the ground state, and others are instable. Different phases exhibit different characteristics, some of which have semiconductor properties and others have like metal in property. These stable and metastable phases of transition metal dichalcogenides can be transformed into each other under some conditions. In order to obtain these metastable phases, thereby modulating their photoelectric performance and improving the mobility of the devices, it is essential to obtain a phase transition method that enables the crystal phase transition of the transition metal dichalcogenides. In this article, first of all, we summarize the different crystal structures of transition metal dichalcogenides and their electrical, mechanical, and optical properties. Next, the eight phase transition methods of transition metal dichalcogenides are listed, these being chemical vapor deposition, doping, ion intercalation, strain, high temperature thermal treatment, laser inducing, plasma treatment, and electric field inducing. After that, the research progress of these phase transition methods and their advantages and disadvantages are introduced. Finally, we sum up all the phase transition methods mentioned in this article and then list some of the problems that have not been solved so far. This review elaborates all of the presently existing different phase transition methods of transition metal dichalcogenides in detail, which provides a good reference for studying the phase transition of transition metal dichalcogenides in the future, the electrical performance regulated by different phases, and the applications of memory devices and electrode manufacturing.
Functional implications of MIR domains in protein O-mannosylation
Authors: Chiapparino Antonella , Grbavac Antonija , Jonker Hendrik RA , Hackmann Yvonne , Mortensen Sofia , Zatorska Ewa , Schott Andrea , Stier Gunter , Saxena Krishna , Wild Klemens , Schwalbe Harald , Strahl Sabine , Sinning Irmgard
Published: December 2020

Protein O-mannosyltransferases (PMTs) represent a conserved family of multispanning endoplasmic reticulum membrane proteins involved in glycosylation of S/T-rich protein substrates and unfolded proteins. PMTs work as dimers and contain a luminal MIR domain with a β-trefoil fold, which is susceptive for missense mutations causing α-dystroglycanopathies in humans. Here, we analyze PMT-MIR domains by an integrated structural biology approach using X-ray crystallography and NMR spectroscopy and evaluate their role in PMT function in vivo. We determine Pmt2- and Pmt3-MIR domain structures and identify two conserved mannose-binding sites, which are consistent with general β-trefoil carbohydrate-binding sites (α, β), and also a unique PMT2-subfamily exposed FKR motif. We show that conserved residues in site α influence enzyme processivity of the Pmt1-Pmt2 heterodimer in vivo. Integration of the data into the context of a Pmt1-Pmt2 structure and comparison with homologous β-trefoil – carbohydrate complexes allows for a functional description of MIR domains in protein O-mannosylation.
Valfrihet inom social- och hälsovården
Authors: Brandt Mats
Published: December 2020

Artikeln bygger på en undersökning om hurdan valfriheten är inom social- och hälsovården. Den handlar också om vilka effekter införandet av valfrihet har på myndigheter ur olika strategiska synvinklar. Undersökningen baserar sig på en webbenkät som riktades till ledande tjänstemän som ansvarar för social- och hälsovården vid olika myndigheter i Finland och Sverige. I fokus är valfrihetssystem enligt pengar följer kunden–modeller. Resultaten visar att de ledande tjänstemännens syn på valfriheten ger stöd för hypoteserna att valfriheten stärker servicebrukarens självbestämmande, höjer på kvaliteten och är neutral vad gäller kostnadsutvecklingen. Resultaten pekar också på att valfriheten leder till långsiktiga konsekvenser som behöver beaktas i myndigheternas strategier, bland annat med avseende på skiften i organisationens perspektiv samt dess förhållande till marknaden och till en ökad variation i tjänsteutbudet.
La apropiación del espacio del otro en la literatura hispanoamericana: ¿sumisión o liberación?
Authors: Pimentel Luz Aurora
Published: December 2020

En un primer momento, habría que pensar que la representación del espacio en el relato se cumple en buena medida por la descripción de los lugares y objetos que lo pueblan conformando así el escenario indispensable para toda acción narrada. Ahora bien, la descripción como práctica textual para dar cuenta del espacio puede darse desde la virtualidad del nombre y del nombre propio hasta la extrema expansión de la serie, el inventario o el catálogo que serían sus rasgos definitorios. Pero la serie no tiene forma, necesita algo que le ponga coto, que le dé sentido; un modelo, un esquema. La interacción entre la serie predicativa y el modelo de organización que le da forma y sentido establece el sistema descriptivo que está en la base de la representación verbal del espacio en los textos narrativos. Con frecuencia el espacio representado se va construyendo a partir del entreverado narración-descripción a cargo de un narrador más o menos impersonal, o bien filtrado por la conciencia reflectora del personaje focal. En todo caso, ese espacio representado tiene una primerísima e ineludible función de basamento, de escenario de la acción humana. No obstante, ni aun como escenario es el espacio representado algo neutro o inocente, debido al modelo mismo de organización que lo pone en contacto con la realidad extratextual.
Capuchita negra
Authors: del Río Alejandra
Published: December 2020

Selección de poemas de Alejandra del Río.
Atrophy and Muscular Fibrosis of Unknown Etiology during the Raising of Xiphophorus maculattus on an Ornamental Fish Farm
Authors: Romano L. A. , Medeiros A. F. F. de , Pedrosa V. F.
Published: December 2020

During the last two decades, the implementation of histochemical, immunohistochemical, electron microscopy, and recently developed molecular techniques has greatly contributed to our knowledge of skeletal muscle, both normal and sick. This article reports the presence of muscular atrophy and fibrosis in Xiphophorus maculatus from an ornamental fish farm. We do not know the origin of this muscular pathology and the purpose of this work is to summarize some of the findings with optical microscopy and electron microscopy shared by all. Although we cannot establish the etiology of this atrophy, we will try to correlate the ultrastructural alterations with the muscular histopathology. Muscular atrophy is a pathology characterized by loss of normal muscle mass. It is caused by a decrease in the total number of muscle cells or by a substantial reduction in the substance of individual muscle cells. It is likely that the cases reported here represent a pathology involving causes concurrent with nutritional problems and disorders of muscle innervation. Therefore, future studies should investigate further about the potential of neurodegenerative disorders. Several experimental models can use muscular atrophy and are suitable for investigations of the underlying mechanisms of this pathology.
Rental Policy of Military Combat Equipment for National Defense: A Trial
Authors: Sarjito Aris , Thamrin Suyono , Saragih Herlina J. R.
Published: December 2020

Aims: The purpose of this research is to analyze the rental policy of military combat equipment for national defense.

Study Design: This study is descriptive and employed qualitative approaches.

Methodology: This study uses a qualitative analysis approach that aims to analyze the policy of renting combat equipment for the military, using rental theory as an analytical tool supported by policy theory, national defense, threat perception, and national security.

Place and Duration of Study: This research was conducted in Jakarta, Indonesia in September – October 2020.

Results: The results of this study are: (1) Indonesia has a firm stance on China's claims in Indonesia's Exclusive Economic Zone (EEZ) to defend its sovereignty in the Natuna Sea; (2) Indonesia's national security is related to how to maintain Indonesia's territorial sovereignty as a whole as a nation. The responsible institution is the TNI; (3) the basis of national defense is the Indonesian National Army which is developed as a defense asset that is professionally trained and equipped with modern technology; and (4) the policy of renting combat equipment to strengthen the military presence in Natuna is a step that must be seriously considered. There are many advantages to renting rather than buying: renters don't pay for repairs, renters get nice stuff too expensive for owners, renters don't tie up their money, renters have more bargaining power at work, renters have more flexibility in recessions, and renting can be good for the economy and the climate.
Registry Study of Clinical Data and in Hospital Outcome in Patients Admitted with Acute Coronary Syndrome at Tanta University Hospital in 2019
Authors: Helal Doaa Abdelfattah , Taha Fatma Aboalsaoud , Khalel Sameh Samir , Setiha Mohammed Elsayed El
Published: December 2020

Background: A quick but thorough assessment of the patient’s history and findings on physical examination, electrocardiography, and cardiac biomarker tests permit accurate diagnosis and aid in early risk stratification. This work aimed to analyze the diagnostic and prognostic tools, the modalities of management, and the hospital outcome of patients with acute coronary syndrome (ACS) at Tanta University Hospital in one year.

Methods: This ACS registry at Tanta university hospital is a prospective observational registry for 200 consecutive admitted patients with proven ACS from January 2019 to January 2020.

Results: A higher percent of hypertension, family history of ischemic heart disease and SCD, previous history of chronic kidney disease (CKD), and lower percent of a previous history of IHD in STEMI compared to NSTEMI/UA. In-hospital death, in-hospital reinfarction, and reduced ejection fraction are higher in STEMI than in NSTEMI/UA patients. (P value = 0.015, 0.018 and 0.001 respectively) without significant differences regarding in-hospital congestive heart failure (CHF) and ischemic stroke. History of CKD, higher Killip class, and in-hospital stroke were independently affecting in-hospital mortality. Also, the history of higher Killip class was independently affecting in-hospital reinfarction and in-hospital CHF. Old age and occurrence of in-hospital reinfarction were independently affecting in-hospital stroke.

Conclusion: Hypertension, diabetes, dyslipidemia, and smoking are the major risk factors for ACS so, controlling these risk factors will improve in-hospital outcomes. In STEMI, most patients underwent PPCI, which was reflected in the outcome. In NSTEMI/UA patients, both conservative and invasive management was done, taking into consideration the risk stratification of each patient, making management easier and with a good outcome.
Factors Affecting Ex vitro Rooting in Micropropagated Shoots from Nodal Explants of Terminalia arjuna
Authors: Choudhary Meena , Arya Inder Dev , Arya Sarita
Published: December 2020

The present work was done with the aim to study the effect of rooting mixture and incubation temperature on Ex vitro rooting of Terminalia arjuna, an important multipurpose tree. The nodal explant collected from Ummaid garden Jodhpur was subjected for In vitro shoot proliferation on BAP supplemented modified MS medium. These shoots were In vitro multiplied on BAP (half concentration of BAP used in In vitro shoot proliferation) with low concentration of NAA supplemented medium. The individual shoots from In vitro multiplied shoots were pulse treated with IBA for 10 min. and transferred in different rooting mixture and incubation temperature for Ex vitro rooting. Analysis of data revealed that maximum 62.22% rooting was observed when the plantlet pulse treated with 984.25 µM IBA for 10 min were transferred on bottle containing vermiculite as rooting mixture and incubated at the temperature of 26°C.The optimization of Ex vitro rooting mixture and temperature conditions will be helpful in propagation of this important species rapidly in large scale.
Poly(Alkyl‐Terphenyl Piperidinium) Ionomers and Membranes with an Outstanding Alkaline‐Membrane Fuel‐Cell Performance of 2.58 W cm−2
Authors: Chen Nanjun , Hu Chuan , Wang Ho Hyun , Kim Sun Pyo , Kim Hae Min , Lee Won Hee , Bae Joon Yong , Park Jong Hyeong , Lee Young Moo
Published: December 2020

Aryl‐ether‐free anion‐exchange ionomers (AEIs) and membranes (AEMs) have become an important benchmark to address the insufficient durability and power‐density issues associated with AEM fuel cells (AEMFCs). Here, we present aliphatic chain‐containing poly(diphenyl‐terphenyl piperidinium) (PDTP) copolymers to reduce the phenyl content and adsorption of AEIs and to increase the mechanical properties of AEMs. Specifically, PDTP AEMs possess excellent mechanical properties (storage modulus>1800 MPa, tensile strength>70 MPa), H2fuel‐barrier properties (<10 Barrer), good ion conductivity, and ex‐situ stability. Meanwhile, PDTP AEIs with low phenyl content and high‐water permeability display excellent peak power densities (PPDs). The present AEMFCs reach outstanding PPDs of 2.58 W cm−2(>7.6 A cm−2current density) and 1.38 W cm−2at 80 °C in H2/O2and H2/air, respectively, along with a specific power (PPD/catalyst loading) over 8 W mg−1, which is the highest record for Pt‐based AEMFCs so far.
Interaction with Ribosomal Proteins Accompanies Stress Induction of the Anticancer Metallodrug BOLD‐100/KP1339 in the Endoplasmic Reticulum
Authors: Neuditschko Benjamin , Legin Anton A. , Baier Dina , Schintlmeister Arno , Reipert Siegfried , Wagner Michael , Keppler Bernhard K. , Berger Walter , Meier‐Menches Samuel M. , Gerner Christopher
Published: December 2020

The ruthenium‐based anticancer agent BOLD‐100/KP1339 has shown promising results in several in vitro and in vivo tumour models as well as in early clinical trials. However, its mode of action remains to be fully elucidated. Recent evidence identified stress induction in the endoplasmic reticulum (ER) and concomitant down‐modulation of HSPA5 (GRP78) as key drug effects. By exploiting the naturally formed adduct between BOLD‐100 and human serum albumin as an immobilization strategy, we were able to perform target‐profiling experiments that revealed the ribosomal proteins RPL10, RPL24, and the transcription factor GTF2I as potential interactors of this ruthenium(III) anticancer agent. Integrating these findings with proteomic profiling and transcriptomic experiments supported ribosomal disturbance and concomitant induction of ER stress. The formation of polyribosomes and ER swelling of treated cancer cells revealed by TEM validated this finding. Thus, the direct interaction of BOLD‐100 with ribosomal proteins seems to accompany ER stress‐induction and modulation of GRP78 in cancer cells.
Familiar osteopoikilosis: Case report with differential diagnosis and review of the literature
Authors: Gaudio Agostino , Xourafa Anastasia , Rapisarda Rosario , Gorgone Cristina , Gnoli Maria , Pedrini Elena , Sangiorgi Luca , Catalano Antonino , Zanoli Luca , Mattina Teresa , Castellino Pietro
Published: December 2020

Osteopoikilosis (OP) is a rare autosomal dominant sclerosing bone disease, caused by heterozygous mutations in the LEMD3 gene. It is characterised by numerous focal lamellar bone compact deposits in the spongiosa. In this case report, we describe a famliar case of OP and review the literature.
A case of hypervascular tumors in the liver and pancreas: synchronous hepatocellular carcinoma and pancreatic metastasis from renal cell carcinoma 36 years after nephrectomy
Authors: Nakamura Hajime , Tanaka Shingo , Miyanishi Koji , Kawano Yutaka , Osuga Takahiro , Ishikawa Kazuma , Yoshida Makoto , Ohnuma Hiroyuki , Murase Kazuyuki , Takada Kohichi , Yamaguchi Hiroshi , Nagayama Minoru , Kimura Yasutoshi , Takemasa Ichiro , Kato Junji
Published: December 2020

It is sometimes difficult to distinguish between multiple cancers and metastases using only diagnostic imaging, particularly when multiple hypervascular tumors are found in multiple organs. We present a case in which the preoperative histological evaluation was essential to determine the management of a hypervascular pancreatic tumor and liver tumor.
Bulky Polyfluorinated Terphenyldiphenylboranes: Water Tolerant Lewis Acids
Authors: Stoian Corina , Olaru Marian , Cucuiet Teodor A. , Kegyes Krisztina T. , Sava Alexandru , Timoshkin Alexey Y. , Raţ Ciprian I. , Beckmann Jens
Published: December 2020

Protocols for the synthesis of the bulky polyfluorinated triarylboranes 2,6‐(C6F5)2C6F3B(C6F5)2 (1), 2,6‐(C6F5)2C6F3B[3,5‐(CF3)2C6H3] (2), 2,4,6‐(C6F5)3C6H2B(C6F5)2 (3), 2,4,6‐(C6F5)3C6H2B[3,5‐(CF3)2C6H3] (4) were developed. All boranes are water tolerant and according to the Gutmann‐Beckett method, 1–3 display Lewis acidities larger than that of the prominent B(C6F5)3.
Colonial bentgrass transcript‐expression differences compared with creeping bentgrass in response to water‐deficit stress
Authors: Amundsen Keenan , Warnke Scott E. , Bushman Bradley S. , Robbins Matthew D. , Martin Ruth , Harris‐Shultz Karen
Published: December 2020

Natural stands of creeping bentgrass (Agrostis stolonifera) are often found in wetland areas and exhibit very poor tolerance to dry soils. Colonial bentgrass (A. capillaris) is frequently found in drier habitats and has the ability to go dormant and recover quickly under water‐deficit stress. Hybridization between creeping and colonial bentgrass is possible and a better understanding of gene regulation under water‐deficit conditions of the two species could improve breeding strategies for water deficit–tolerant bentgrasses. A greenhouse dry‐down study was conducted using two creeping bentgrass clones with differing water use profiles and one colonial bentgrass clone. The genotypes were exposed to water‐deficit stress and well‐watered control genotypes were included. Gravimetric evapotranspiration was determined, and control plants watered at 80% ET and deficit irrigation plants watered at 50% ET. Water use rates were similar among all plants with the creeping bentgrass genotypes exhibiting stress earlier and recovering more slowly than the colonial bentgrass. At the conclusion of the experiment, ribonucleic acid sequencing analysis was conducted and there were 975 differentially‐expressed colonial bentgrass transcripts in response to water‐deficit stress compared with an average 98 differentially‐expressed creeping bentgrass transcripts. Among the colonial bentgrass upregulated transcripts in response to water‐deficit stress were eight transcription factors previously shown to be involved in deficit water stress response and several transposon‐related transcripts. This study characterized several transcripts with unique expression changes in colonial bentgrass compared with creeping bentgrass, which may explain why colonial bentgrass is more drought tolerant than creeping bentgrass.
Adult‐like neural representation of species‐specific songs in the auditory forebrain of zebra finch nestlings
Authors: Schroeder Katie M. , Remage‐Healey Luke
Published: December 2020

Encoding of conspecific signals during development can reinforce species barriers as well as set the stage for learning and production of species‐typical vocalizations. In altricial songbirds, the development of the auditory system is not complete at hatching, so it is unknown the degree to which recently hatched young can process auditory signals like birdsong. We measured in vivo extracellular responses to song stimuli in a zebra finch (Taeniopygia guttata) secondary auditory forebrain region, the caudomedial nidopallium (NCM). We recorded from three age groups between 13 days post‐hatch and adult to identify possible shifts in stimulus encoding that occur before the opening of the sensitive period of song motor learning. We did not find differences in putative cell type composition, firing rate, response strength, and selectivity across ages. Across ages narrow‐spiking units had higher firing rates, response strength, accuracy, and trial‐by‐trial reliability along with lower selectivity than broad‐spiking units. In addition, we showed that stimulus‐specific adaptation, a characteristic of adult NCM, was also present in nestlings and fledglings. These results indicate that most features of secondary auditory processing are already adult‐like shortly after hatching. Furthermore, we showed that selectivity for species‐specific stimuli is similar across all ages, with the greatest fidelity in temporal coding in response to conspecific song and domesticated Bengalese finch song, and reduced fidelity in response to owl finch song, a more ecologically relevant heterospecific, and white noise. Our study provides the first evidence that the electrophysiological properties of higher‐order auditory neurons are already mature in nestling songbirds.
Population genetic structure and evolution of Batesian mimicry in Papilio polytes from the Ryukyu Islands, Japan, analyzed by genotyping‐by‐sequencing
Authors: Sato Yukuto , Tsurui‐Sato Kaori , Katoh Mitsuho , Kimura Ryosuke , Tatsuta Haruki , Tsuji Kazuki
Published: December 2020

Batesian mimicry is a striking example of Darwinian evolution, in which a mimetic species resembles toxic or unpalatable model species, thereby receiving protection from predators. In some species exhibiting Batesian mimicry, nonmimetic individuals coexist as polymorphism in the same population despite the benefits of mimicry. In a previous study, we proposed that the abundance of mimics is limited by that of the models, leading to polymorphic Batesian mimicry in the swallowtail butterfly, Papilio polytes, on the Ryukyu Islands in Japan. We found that their mimic ratios (MRs), which varied among the Islands, were explained by the model abundance of each habitat, rather than isolation by distance or phylogenetic constraint based on the mitochondrial DNA (mtDNA) analysis. In the present study, this possibility was reexamined based on hundreds of nuclear single nucleotide polymorphisms (SNPs) of 93 P. polytes individuals from five Islands of the Ryukyus. We found that the population genetic and phylogenetic structures of P. polytes largely corresponded to the geographic arrangement of the habitat Islands, and the genetic distances among island populations show significant correlation with the geographic distances, which was not evident by the mtDNA‐based analysis. A partial Mantel test controlling for the present SNP‐based genetic distances revealed that the MRs of P. polytes were strongly correlated with the model abundance of each island, implying that negative frequency‐dependent selection interacting with model species shaped and maintained the mimetic polymorphism. Taken together, our results support the possibility that predation pressure, not isolation by distance or other neutral factors, is a major driving force of evolution of the Batesian mimicry in P. polytes from the Ryukyus.
Mathematical analysis of multiple spike time series synchronized in phase with collective theta wave using neural cell model
Authors: Noyama Hiroki , Yoshikai Yuto , Kotani Kiyoshi , Jimbo Yasuhiko
Published: December 2020

Information processing in the brain is performed by the interactions of numerous number of neurons. However, much remains unknown about complex behaviors of a network composed of numerous number of neurons. Especially, in what case cross frequency coupling emerges and how it alters timings of individual firing are open questions. Therefore, in order to quantitatively evaluate the dynamics of the nervous group, we reproduced phenomena such as cross frequency coupling observed in the brain on a mathematical model and analyzed. The analyses of Fokker‐Planck equation provide the region of gamma/theta oscillations as well as their cross‐frequency couplings. In addition, we demonstrated that the populational oscillation synchronizes sequences of spike trains, which is supposed to be a possible mechanism of memory coding in hippocampus by theta‐gamma neural code.