bluuebunny/crossref_metadata_2025 huggingface dataset:
Trends of development of agricultural enterprises specializing in plant production in Ukraine
Authors: POLENKOVA Maryna
Published: January 2021

The paper defines the structural distribution of sown area of crops. The dynamics of production of cereals and legumes, sugar beets, sunflowers, potatoes, vegetables, fruits and berries. The clustering of regions of Ukraine under similar conditions of development of the enterprises of the agricultural sector specializing in crop production is carried out. According to the results of the analysis, 3 clusters were identified, which gave rise to the possibility of forming (developing) joint effective organizational and economic mechanisms to enhance the development of crop enterprises, favorable for implementation within the cluster.
In the course of this study, we focus on the development trends of enterprises specializing in crop products. The lion's share (54.7 %) of sown areas falls on cereals and legumes. Technical crops occupy, which is 32.6 %, and potatoes, vegetables and melons – 6.5 %. It is important to note the long-term positive dynamics of production of cereals and legumes and the growth of production can be traced to all categories of farms – in farms and households. The production of sunflower and vegetable crops was also marked by positive dynamics. The decrease was observed in the production of sugar beets, potatoes, fruit and berry crops.
In the context of the study, it is important to identify similar conditions (environment, resources, etc.) for the development of agricultural enterprises between the regions of Ukraine. For this purpose, multifactor statistical analysis (cluster analysis) of key factors of their development was used on the basis of a matrix of 25 selected indicators of development of enterprises specializing in crop production in all regions (600 indicators). To enhance the objectivity of the results, the analysis was conducted in 2010, 2015 and 2019. According to the results of the analysis, taxonomic groups (clusters) were singled out, which made it possible to single out similar regional conditions within each group. Since 2010, there have been significant changes in the regional distribution of Ukraine's agricultural potential. However, during 2015–2019 there is a relative stability in terms of resource provision and use within specific clusters.
According to the results of the analysis, three clusters are distinguished:
I. Volyn, Zakarpattia, Ivano-Frankivsk, Lviv, Rivne, Chernivtsi, as well as Donetsk and Luhansk regions.
II. Dnipropetrovsk, Zhytomyr, Zaporizhia, Kyiv, Mykolaiv, Odesa, Ternopil, Kharkiv, Kherson, Khmelnytsky regions.
III. Vinnytsia, Kirovohrad, Poltava, Sumy, Cherkasy and Chernihiv regions.
Development of river ports of Ukraine
Authors: ROMANCHUK Svitlana
Published: January 2021

Ukraine has a high navigable potential of rivers. At the same time, in Ukraine only about 0.5 % of goods are transported by river transport. The current situation of research in the scientific field in most cases is based on the study of the statistical basis for the use of ports in transportation, transshipment volumes, but scientists do not pay attention to the place of ports as a center of river transport infrastructure and transport development in general. An important step for Ukraine for the development of river ports should be the entry into force of the Law of Ukraine "On Inland Water Transport". This law will address a significant number of issues that have accumulated in the field of river transport and encourages the industry to actively develop soon. In our opinion, the state's efforts to obtain direct revenues from water transport operations, rather than indirect revenues through savings from reducing the load on road infrastructure, accelerating the flow of funds from businesses, payment of wages to river workers, indicates an underestimation of economic industry potential. In the context of decentralization, the transfer of the method of generating revenues to the indirect ones allowed to significantly support the united territorial communities in their search for opportunities to attract investors in their territory and the development of existing ports. International experience in port management shows that among the many sources of financing, modernization and renovation of port infrastructure, the concession is the most attractive tool for raising funds. There is another negative point of distorted statistics: the lack of accurate data contributes to the development of the shadow business on the river. The most striking example here is illegal sand mining, which significantly reduces tax payments, and not only state but also local budgets suffer from this. Shadow "developers", in particular, do not pay rent, VAT, income tax, single social contribution. They also "manage" without paying land rent and the cost of environmental measures, including not compensating for losses to fisheries. If in Ukraine the accounting and control of cargo handling in river terminals was carried out, it would always be possible to stop such activity. However, the adopted law is a lesson for our Ukrainian realities. Only equal relations between business and the state will stimulate both the growth of transshipment in ports, the development of new areas of logistics, and, in general, the development of the country's economy.
Providing the aviation industry with highly qualified personnel
Authors: ZARUBINSKA Iryna
Published: January 2021

The paper is devoted to the development of an integrated structural system model to ensure the training of highly qualified personnel for air transport. The main strategic directions of development and successful activity of National Aviation University at the present stage are determined. It is proved that the formation of the strategy involves obtaining a complete picture of the future state of the aviation industry and ways to solve existing problems. It is scientifically substantiated that the solution of this issue is possible through a detailed analysis of the components of the integrated system and the application of modern management methods.
Research work at the university is the main component of the educational process. Scientific and pedagogical workers, post-graduate students, doctoral students and a significant part of higher education students take part in conducting scientific research in these areas. Scientists of the university carry out complex research work in the most relevant areas of science and technology. The university has 17 specialized councils for the defense of doctoral and candidate dissertations in 29 specialties
The economic performance of any higher education institution directly depends on competitiveness and financial condition. In 2020 NAU took the sixth place in the ranking of the most popular institutions of higher education in Ukraine in the total number of applications. According to the number of entrants enrolled in the budget, it ranks fifth in Ukraine and third in the capital
For the professional development of the aviation industry, due to modern economic and social conditions, it is necessary to increase the demand for technical specialties. Training specialists for professional activities in the context of European integration requires the search for extraordinary ways to organize the educational process. Already today we have a big problem of lack of future engineers for aviation.
The use of simplicial analysis to adjust cognitive structure
Authors:   Sobolev Institute of Mathematics Siberian Branch of the Russian Academy of Sciences, Marenko Valentina A. , Lozhnikov Vyacheslav E. ,   Omsk State University
Published: January 2021

Description of a new method of researching objects in the form of a set of information tasks is the goal of the work. A simplicial analysis of the cognitive structure of the object of study is included in the method. Several stages have a method. The set of basic factors is revealed at the first stage. Pairwise comparison of factors is carried out. The formation of the cognitive model in the form of an adjacency matrix of the 1st level of the hierarchy is done. Factors for the formation of the 2nd level of the hierarchy are grouped. The combination of components in the cognitive structure of the 3rd level of the hierarchy is carried out. Detailing the components of the 3rd level of the hierarchy is presented at the 4th level. A series of simulation experiments is conducted to test the stability of the detailed structure of the cognitive model. The implicit relationship between the underlying factors are studied. The method was tested on the example of the cognitive model "lifestyle" of students. The components "living conditions", "cognitive dissonance", and "performance" are grouped at the second level of the hierarchy. A simulation experiment was conducted. The presence of pulse resonance in the detailed structure of the 4th level of the hierarchy is established. Simplicial analysis is done. The ordering of the elements its purpose is. The simulation experiment was made after simplicial analysis. The result now corresponds to the theory. The influence of cognitive dissonance of the individual on the "activity" was revealed. The "activity" factor affects cognitive dissonance, among other things. To identify significant factors, detection of hidden trends and the implementation of measures of social control, this method need.
Application of big data in the design of expert systems
Authors:   Synergy University, Kultygin Oleg P.
Published: January 2021

The relevance of the topic considered in the article lies in solving the problems of designing expert systems for industrial enterprises based on big data technology. The purpose of the study is to analyze the applied methodologies at the design stage of an enterprise information system, to develop algorithms for the operation of an expert system with big data. A brief statement of the problem consists in analyzing the technologies available on the market for working with big data and the possibility of using them for expert systems, identifying the main stages of working with big data for industrial enterprises. In the modern world, the problem of using Big Data has become extremely urgent. Companies, firms and corporations that are leaders in the field of information technology and business conduct are busy looking for optimal solutions for managing a huge amount of constantly incoming information and its in-depth analysis. They are looking for ways to profit from the data at their disposal, trying to get new data from the existing ones. Developing your own expert system is more cost effective. Methods used - methods of analysis and design IDEF0, DFD, IDEF1, IDEF3, methods of functional (structural) design, methods of object-oriented design. The results obtained - a method of using big data to create an expert system for an industrial enterprise has been developed. Implementation of such an expert system on your own is much cheaper than purchasing ready- made software systems.
Solving the problem of calendar data preprocessing during the implementation of Data Mining technology
Authors:   The Branch of National Research University MPEI in Smolensk, Okunev Boris V. , Shurykin Alexander S. ,   The Branch of National Research University MPEI in Smolensk
Published: January 2021

At the moment, dirty data, that is, low-quality data, is becoming one of the main problems of effectively solving Data Mining tasks. Since the source data is accumulated from a variety of sources, the probability of getting dirty data is very high. In this regard, one of the most important tasks that have to be solved during the implementation of the Data Mining process is the initial processing (clearing) of data, i.e. preprocessing. It should be noted that preprocessing calendar data is a rather time-consuming procedure that can take up to half of the entire time of implementing the Data Mining technology. Reducing the time spent on the data cleaning procedure can be achieved by automating this process using specially designed tools (algorithms and programs). At the same time, of course, it should be remembered that the use of the above elements does not guarantee one hundred percent cleaning of "dirty" data, and in some cases may even lead to additional errors in the source data. The authors developed a model for automated preprocessing of calendar data based on parsing and regular expressions. The proposed algorithm is characterized by flexible configuration of preprocessing parameters, fairly simple implementability and high interpretability of results, which in turn provides additional opportunities for analyzing unsuccessful results of Data Mining technology application. Despite the fact that the proposed algorithm is not a tool for cleaning absolutely all types of dirty calendar data, nevertheless, it successfully functions in a significant part of real practical situations.
PERANCANGAN MULTIMEDIA INTERAKTIF BIOLOGI SMA BERBASIS LITERASI SAINS DENGAN KONTEKS PADI
Authors: Siti Auliaddina
Published: January 2021

Learning media have an important role in the teaching and learning process, because it makes the delivery of material in the learning process easier. One example of learning media is interactive multimedia based on scientific literacy. The main focus in the study of scientific literacy is the understanding of science which includes an understanding of nature through the mastery of basic science such as chemistry, biology and physics. So that interactive multimedia based on scientific literacy is very suitable in science learning. In this journal it was revealed about interactive learning media in the form of interactive videos of high school biology material based on the context of rice. In this journal the content of biology material from high schools is stated in the context of rice. The research methodology used is the waterfall method. Where after the authors analyze the content of High School Biology Material in accordance with the context of rice, then it is applied to the interactive multimedia created, and conduct interactive multimedia testing of high school students. After the usability test was conducted, the results were obtained that the interactive multimedia made could be well received and attracted the interest of most high school students who were correspondents.
PENGEMBANGAN SISTEM PENDUKUNG KEPUTUSAN UNTUK DIAGNOSIS BANDING GANGGUAN SOMATOFORM BERBASIS PPDGJ III
Authors: Rafik Putra Dzikra , Kusumadewi Sri
Published: January 2021

Gangguan somatoform merupakan kelainan psikologis atau biasa disebut gangguan jiwa yang dicirikan dengan gabungan gejala fisik yang tidak jelas dan tidak tampak pada pemeriksaan fisik. Gangguan somatoform ini selain tinggi prevalensinya dan susah difenisikan dengan pemeriksaan medis, gejala somatoform juga dapat membahayakan bagi individu yang terkena gejala somatoform. Penelitian ini bertujuan untuk membangun aplikasi diagnosis banding sesuai algoritma yang telah ditetapkan pada buku saku PPDGJ edisi ketiga khusus untuk gangguan somatoform. Sistem pendukung keputusan berbasis web dengan metode pohon keputusan merupakan sistem yang dipilih untuk menyelesaikan masalah diatas. Hasil dari pengujian yang dilakukan kepada 3 psikolog yaitu 96% merasa puas dengan keseluruhan sistem yang dibangun. Hasil dari penelitian ini dapat membantu klien dan psikolog dalam menentukan diagnosis banding gangguan somatoform yang dialami oleh klien.
POPULATION DYNAMICS AND IT’S RELEVANT IN MATHEMATICAL MODELLING
Authors: Rutu Marthak
Published: January 2021

The study of Population dynamics and its relevancy in mathematical modelling to calculate
the motion of earth around the sun given the inverse square law of gravitational attraction
between them while the geometrical to analyzing dynamical behaviour proved to be a
powerful method. Today the study of dynamics reaches far beyond application in celestial
mechanics and it has achieved a truly interdisciplinary status.
કિવ કાગની રચનાઓમાં સમાજ ̆િપ્રતિબિંબ
Authors: Jani Rajendra
Published: January 2021

સાહƗયએ સમાજની આરસી છે. સાહƗયના ̆કાર એવા ગČ અને પČમાં પાગં ર°લી Ȣૃિતઓ એ
સમાજનો એë-ર° રȩૂકરȱું માƚયમ છે. સામતં વાદ સમાજƥયવƨથા હોય ક° Ȣૃષક સમાજ હોય ક° પછ
Ӕ˴ેજ શાસનનો સમય હોય Ȑ તેસમયની સામાજક ƨથિતનો તાગ મેળવવા માટ° સાહƗય એ ઉપયોગી
માહતી ̒ોત બને છે. ̆ƨȱતુ સશં ોધન અƟયાસ લખે માં ƨવત ં́તા ̆ાƜત અગાઉ સૌરાƧ˼ – Ȥજુ રાતȵું
સમાજĥવન ક°વી ભાતȵું હȱુએ બાબતની Ĥણકાર કિવ ̒ી ȳુલા ભાયા કાગની ‘કાગવાણી ભાગ ૧ થી
૪’ માં સમાિવƧટ થયેલી િવિવધ રચનાઓના સહાર° સમĤવવાનો ̆યાસ કરાયો છે. એક સમયે રામસીતા અનેȢૃƧણના ભƈત પદોના રચિયતા કિવ કાગ ૧૯૩૦ પછ ગાધં ી િવચાર સાથેરંગાયા બાદ એક
સȒક તરક° ક°વી સામાજક િવષમતાઓને તેમની રચનાઓӕ ઉĤગર કર° છે તે સƛદભ±̆ƨȱતુ
અƟયાસમાં ચચા½ કરવામાં આવી છે. મહાƗમા ગાધં ીની સȺળૂ ગી આઝાદની િવચારસરણી ક°વી રતે
સȒકો Ʌધુ ી િવƨતરને સાહƗય સȒનમાં િવકસી હતી એની પણ સમજ મળે છે. સમાજશાĘ એ સમાજને
સમĤવȱુ અને સમાજને સમજȱુ શાĘ તરક° ઓળખાય છે Ɨયાર° ̆ƨȱતુ અƟયાસમાં સાહƗયના
સામાજક સદં ભ½ સાથે કિવ ȳુલા ભાયા કાગની રચનાઓનેઆધાર° ‘િશર પડ° ને ધડ લડ°Ȑના વધામણાં
વૈȢુંઠમાં Ĥય’ સાથે વણાયેલાસૌરાƧ˼ ના કિવની િવિવધ રચનાઓમાં સામાજક સમાનતાનો િવચારો ક°વા
ƥયƈત થાય છે એની સશં ોધનાƗમક િવગતો લેખમાં સમાવવામાં આવી છે. સમાજના હડȴતૂ થયેલા
વગҴને સમાનતાનો અિધકારઅપાવȱું ƨવરાજ અપાવે એવી આદ½તા કિવ કાગની રચનાઓમાં ઝલાય છે
Ȑ બાબત સાહƗયના સમાજશાĘની શાખાના સદં ભ± સમĤવવાનો ̆યાસ લખે માં કરાયો છે. ગાધં ીની
સામાજક અસમાનતા, ઉƍચ િનƠન ભેદભાવો ȳૂર કરવાના ̆યાસો ક° અƨȶƦૃયતા નાȸદૂ અભયાનને
ક°વી કારગર અસર એકસમયે Ȑ રાĤ રજવાડાઓની સાથે જોડાયેલી અન રાજકિવ તરક° ઓળખ
પામેલી ìાિતનો કિવ લોકશાહ િવચાર Ⱥƣૂયોને ક°વા વધાવે છે એ પણ જોવા મળે છે.
Processing in Image Interpolation and Motion Detection
Authors: Ndidi Samuel , Iwobi Victor
Published: January 2021

This article discusses processing in Image Interpolation and Motion Detection. Image or image has become a common thing and has become part of everyday people's life. In a particular interest, image is used as a tool to express various kinds of feelings which for some people are difficult to express through words. Such as explaining a reason, interpretation, illustration, communication, memory, education, evaluation, entertainment, and others. Then the concept of image and its processing is associated with changing and improving the image. Image is a representation, similarity, or imitation of an object or object, for example your photo represents the entity of yourself on camera. X-ray photographs of the chest represent the inside of a person's body, the data in a BMP file represents what it represents.
Basics Telecommunication System Covers Working Principles and Emerging Problems
Authors: Chinh Que Duc , Nguyen Bui Thuan
Published: January 2021

This article discusses the basics of the telecommunications system covering developments, working principles and emerging problems in telecommunications. The telecommunications system is all elements of both telecommunications infrastructure, equipment, facilities and infrastructure, as well as telecommunications operators, so that long-distance communication can be carried out. During the journey the information will pass through various media with different characteristics. So that it allows the occurrence of high delays and large packet loss, all of which will reduce the quality of the information received. The quality of the transmission medium determines the quality of the information received. Because as long as it is in the media, it is certain that the information will experience damping which will reduce the quality of the information. In order to communicate properly, the channel provided is not only physical media but also logical lines (frequency channels), considering that these frequency channels are expensive and limited.
The problem of the interaction of a conical indenter with an elastic cylinder
Authors: Астапов Юрий Владимирович , Соколова Марина Юрьевна , Христич Дмитрий Викторович
Published: January 2021

В данной работе исследуется поведение эластомера при взаимодействии с жестким штампом, вершина которого имеет форму конуса. В качестве определяющих соотношений используются модель материала Генки и ее обобщение для описания физически-нелинейного отклика. Проведено сравнение результатов численного решения с кривыми, полученными из рассмотрения поставленной задачи в рамках линейной модели с использованием теории Герца. В работах [10, 11] показана принципиальная возможность определения параметров модели гиперупругости на основе определяющих соотношений Генки-Мурнагана из экспериментов по индентированию сферическим штампом. Результаты, полученные в данной работе, могут быть использованы для построения методики определения параметров нелинейно-упругой модели из экспериментов по индентированию коническим штампом.

In this paper, we investigate the behavior of an elastomer when interacting with a rigid punch, the top of which is cone-shaped. Hencky’s material model and its generalization to describe the physically nonlinear response are used as the constitutive relations. The results of the numerical solution are compared with the curves obtained from considering the problem in the framework of a linear model using the Hertz theory. The works [10, 11] show the fundamental possibility of determining the parameters of the hyperelasticity model based on the Hencky- Murnaghan constitutive relations from experiments on indentation with a spherical stamp. The results obtained in this work can be used to construct a method for determining the parameters of a nonlinear elastic model from experiments on indentation with a conical stamp.
Non-stationary dynamics of anisotropic Kirchhoff-Love type shel
Authors: Локтева Наталья Александровна , Сердюк Дмитрий Олегович , Скопинцев Павел Дмитриевич
Published: January 2021

Строится нестационарная функция прогиба для тонкой бесконечной цилиндрической оболочки постоянной толщины при воздействии на ее боковую поверхность вынужденной нестационарной движущейся нагрузки, распределенной по прямоугольной области. Материал рассматриваемой цилиндрической оболочки принят упругим и анизотропным, обладающим симметрией относительно ее срединной плоскости. Теория тонких упругих оболочек строится на гипотезах Кирхгофа-Лява. Для математического описания мгновенно приложенной нагрузки используются дельта-функции Дирака.

A non-stationary deflection function is determined for a thin infinite cylindrical shell of constant thickness under the influence of non-stationary moving pressure. The pressure is distributed over a rectangular region, which belongs to the side surface of the shell. The shell material is elastic, anisotropic, and has symmetry to the median surface. The theory of thin elastic shells is based on the Kirchhoff-Love’s hypotheses. The Dirac delta-functions are used to describe an instantaneously applied pressure.
Euler-Bernoulli cantilever beam bending considering the inner diffusion flows finite propagation speed
Authors: Земсков Андрей Владимирович , Файкин Георгий Михайлович
Published: January 2021

Исследуются нестационарные колебания балки Эйлера-Бернулли с учетом массопереноса. Используется модель упругой диффузии для многокомпонентных сред. Для получения решения задачи используются вариационный принцип Даламбера и метод эквивалентный граничных условий.

Unsteady vibrations of the Euler-Bernoulli beam are studied taking into account mass transfer. The model of elastic diffusion for multicomponent media is used. To obtain a solution to the problem, the d’Alembert variational principle and the equivalent boundary conditions method are used.
Formulation of the problem of finite deformations of a semi-toroidal shell under the internal pressure
Authors: Козлов Виктор Вячеславович , Маркин Алексей Александрович , Петрова Вера Евгеньевна
Published: January 2021

Рассматривается нелинейно-упругая осесимметричная модель полутороидальной оболочки, закрепленной по основаниям, под действием внутреннего давления. Предложен подход к формулировке мер, определяющих напряженно-деформированное состояния оболочки. Для несжимаемого материала получена замкнутая система нелинейных обыкновенных дифференциальных уравнений относительно неизвестных функций. С помощью метода конечных элементов дана оценка напряженно-деформированного состояния оболочки в случае малых деформаций.

A nonlinear elastic axisymmetric model of a semi-toroidal shell fixed at the bases under the internal pressure is considered. An approach to the formulation of measures that determine the stress-strain state of the shell is proposed. For an incompressible material, a closed system of nonlinear ordinary differential equations for unknown functions is obtained. The finite element method is used to estimate the stress-strain state of the shell in the case of small deformations.
Revisión de sepsis obstétrica
Authors: Yard Foster Yamilka Yoanie , Nuñez Ortega Jania Melissa , Correoso Guevara José Daniel
Published: January 2021

La sepsis es una de las principales causas de mortalidad y morbilidad materna a nivel mundial, con una incidencia de 240-300 casos por cada 100 000 habitantes. La clave en el manejo de esta patología está en la identificación temprana de los signos y síntomas sugestivos de sepsis. Este concepto ha variado de manera significativa durante la última década con la creación de nuevas herramientas, que han permitido la captación oportuna de una mayor proporción de pacientes, además de estrategias terapéuticas con lo que se ha logrado mejorar el resultado de los pacientes; sin embargo, hasta el momento no hay una prueba diagnóstica específica. A pesar de todos los avances ocurridos en el diagnóstico y tratamiento de la sepsis en el paciente adulto, no existe un concepto definido para “Sepsis obstétrica” o Sepsis en el embarazo, dado que las pacientes en estado de gravidez representan un grupo poblacional con consideraciones específicas propias del embarazo, que se deben tomar en cuenta para realizar un diagnóstico y tratamiento oportuno.
Primer reporte de envenenamiento accidental por Ananteris platnicki Lourenco, 1993 (Scorpiones: Buthidae) en Panamá.
Authors: Murgas Ingrid , Bermudez Sergio , Miranda Roberto
Published: January 2021

El género Ananteris Thorell, 1891 contiene gran variedad de especies de escorpiones Neotropicales de la familia Buthidae. En Panamá, este género está representado por dos especies. Se describe un reporte de caso de picadura de Uno de los estudios observacionales más grandes Lourenço, 1993 en Panamá. Este constituye el primer reporte de envenenamiento por el género Ananteris para la región. Panamá presenta una alta incidencia de escorpionismo ubicándose como una de las más altas en América Latina.
A State of Art: Survey for Concurrent Computation and Clustering of Parallel Computing for Distributed Systems
Authors: Shukur Hanan , Zeebaree Subhi R. M. , Jamil Ahmed Abdulraheem , R. Zebari Rizgar , Ahmed Omar , Shams Aldeen Tahir Bareen , A. M.Sadeeq Mohammed
Published: January 2021

In this paper, several works have been presented related to clustering parallel computing for distributed systems. The trend of the paper is to focus on the strengths of previous works in this field towards enhancing the performance of distributed systems. This concentration was conducted by presenting several techniques, each of which has weak and strong features. The most challenging points for all techniques vary from increasing the performance of the system to time-responding to overcome overhead running of the system. For a more specific approach to addressing concurrent computation besides parallel computing classifications for distributed systems, this paper relies on a comprehensive feature study and comparison between SYNC and ASYNC modes.
Nhu cầu chăm sóc giảm nhẹ tại nhà và ứng dụng công nghệ thông tin vào quá trình chăm sóc cho bệnh nhân ung thư tại Khoa Ung bướu-Chăm sóc giảm nhẹ, Bệnh viện Trung ương Huế cơ sở II
Authors: Phan Canh Duy
Published: January 2021

Objectives: To investigate the needs of patients in palliative care at home and apply information technology to the care process to bring convenience and savings to the patients.

Subjects and methods: Crosssectional descriptive design was conducted with a sample size of 80 people with stage IV cancers being treated in the Oncology Department - Palliative care at Hue Central General Hospital Second Branch from November 2019 to November 2020.

Results: The proportion of the sample in high needs of palliative care was 81%. Patients needing to provide treatment information was more than 80%, 60% of whom actually knew the disease situation. The needs for specialized nursing were 77.5%, the needs for care to control symptoms and nutrition counseling accounted for two-thirds of the patients. 80% of patients needed family support, whereas 78.8% of people needed support to reduce boredom. Materialistic needs group: Accounting for the highest proportion was the needs to provide information on financial problems (82.5%), the needs for financial support was 65%.

Conclusion: The role of palliative care at home is essential and needs to be developed at the beginning of treatment to reduce the burden on patients and families
Áp dụng hóa bảng phân loại của ST GALLEN 2013 trong phân nhóm phân tử ung thư vú biểu mô tuyến vú
Authors: Nguyen Van Chu
Published: January 2021

Molecular classification of breast cancer is target to category patient groups who need to treat by the appropriate adjuvant therapy and provide more exact prognostic information.

Purpose: Determining the proportion of molecular types and commenting on some association with clinicpathological characteristics of breast cancer.

Methods: 521 operated breast cancer patients were stained by immunohistochemistry with markes such as: ER, PR, HER2, and Ki67 for classifying into 5 molecular categories and follow up assessment.

Results: Type LUMBH- accounted for the highest proportion of 26.5%, followed by luminal A (22.5%). Typically, LUMA was the highest rate in good NPI (35.0%), whereas in poor NPI group, HER2 type was the highest rate (36.4%) (p<0.001). The LUMBH - group has the OS rate during the 5-year follow-up of 94.6% and LUMA is 93.5%; In contrast, the HER2 group showed the lowest OS ratio (72.6%) (p<0.05).

Conclusion: Molecular classification of breast cancer according to St Gallen 2013 classification can provide the important information for treatment and prognosis.
Đánh giá tác dụng phụ và chất lượng sống của bệnh nhân ung thư vú đang hóa trị bổ trợ tại Trung tâm Ung bướu-Bệnh viện Trung Ương Huế
Authors: Phan Thi Do Quyen
Published: January 2021

Objective: The survey aims to explore the side effects and quality of life and its determinants among breast cancer patients who have been receiveing adjuvant chemotherapy at Oncology Center - Hue Central Hospital.

Sample and Methods: This cross - sectional study deployed questionnaire - based interviews with 65 patients when they came to the hospital for adjuvant chemotherapy at Oncology Center - Hue Central Hospital from January to June 2020. Collected data was analyzed using SPSS software 21 for Windows.

Results: The sample has an average age of 48,84. Among the total respondents, 50,8% had hormone receptor-positive breast cancer, 61,5% had Her2neu - positive, 7,7% was triple negative breast cancer patients. Most respondents reported having symptoms that decreased their quality of life, such as dry mouth, appetite changes, fatigue, arm pain, and limited mobility in ipsilateral arm. The majority felt insecure because of their asymmetric and less good-looking body image post mastectomy. Most were no longer interested in sexual activities. The rate of stage 3 was 35,4% but there was only 7,7% of patients who had received neo-adjuvant chemotherapy.

Conclusion: This survey contributes to understanding of patients’ suffering of symptoms, their concerns and anxiety, and distress during their outpatient care. It also provides information on their thoughts and preferences for options of therapy. Altogether the study carries important implications for clinicians to plan more effective treatment and care for breast cancer patients.
Báo cáo một trường hợp hiếm bệnh tăng globulin đại phân tử Waldenstrom có tổn thương xương và Cd20 âm tính
Authors: Tran Thi Phuong Tuy
Published: January 2021

Background: Waldenström’s macroglobulinemia is a rare malignant monoclonal gammopathy characterized by the production of excess IgM monoclonal protein. It presents with symptoms related to the infiltration of the hematopoietic tissues or the effects of monoclonal IgM in the blood. We present a case report to have much more experience of diagnosis of rare entity of maglinant lymphoid proliferation. Case report: A 70-year-old male hospitalized with weakness, bruising, splenomegaly, no hepatomegaly, no lymphadenopathy. Red blood count: 1.1 x1012/l, Hb 45g/l, white blood count: 9.9 x109/l (74% lymphocytes, 11% plasmacytoid lymphocytes, 1% plasmocyte, 11% neutrophils (1.08 x109/l), 3% monocytes), and platelet count: 15 x109/l. LDH, liver and renal function tests were normal. Serology for HIV, hepatitis B and hepatitis C were normal. Karyotype had no metaphase cells. MYD88 L265P mutation was negative. The bone marrow aspiration and biopsy showed a massive proliferation of small lymphocytes (61% lymphocytes mixed with plasmacytoid lymphocytes (17%) and plasma cells (3%). Immunophenotype: Positive for CD19, CD22, CD79a. Negative for CD20, CD34, CD10, CD5. Elevated erythrocyte sedimentation rate: 49mm/1st. Rouleaux formation. Protein 90g/l; Albumin 27.5g/l; A/G: 0.44; Monoclonal Gamma: 51.1g/l; IgM: 5.47g/dl. The bone SPECT image showed an abnormal concentration of radiation at the front arc of the rib 5 and the left side of the ribs 6 and 7. High-risk prognosis with 4 prognosis points according to the International Prognostic Scoring System. Conclusion: Diagnosis: A Waldenstrom’s Macroglobulinemia Case with Bone Lesions and CD20 negative.
Kiến thức, thái độ và thực hành tự khám vú của nữ sinh một số trường trung học phổ thông tại tỉnh Thừa Thiên Huế
Authors: Nguyen Vo Tra Mi
Published: January 2021

Background: Breast cancer is the leading cause of all cancer deaths in women. Breast self-examination is a simple screening method to detect signs of abnormalities in the breast. It is important for students - the future generation of the country, to be aware of breast self-examination. This paper describes knowledge, attitude and practice about breast self-examination and research factors related to knowledge, attitude and practice about breast self-examination in high school female students. Materials and method: A cross-sectional study was carried out with 415 female students in high schools by multi-stage sampling method, using pre-designed questionnaires. Results: 16.6% of female students meet the requirements of knowledge about breast self-examination, 46.3% of female students meet the requirements of attitude about breast self-examination, and 11.3% of female students have ever done breast self-examination including 59.6% of female students practiced accurately. Factors related to knowledge are living environments, grades, personal or family anamnesis of breast disease; factors related to attitude are grades, personal or family anamnesis of breast disease, knowledge about breast self-examination; factors related to practices are grades, personal or family anamnesis of breast disease, knowledge and attitude about breast self-examination. Conclusion: Given the fact that knowledge, attitude and practice about breast self-examination are low, so it is necessary to improve those for female students on breast self-examination.
Cộng hưởng từ chẩn đoán ung thư vòm mũi họng di căn hạch hầu sau
Authors: Pham Nguyen Tuong
Published: January 2021

Purpose: Survey the rate and distribution of retropharyngeal lymph node metastasis, the suitability between Magnetic Resonance and computed tomography in the evaluation of nasopharyngeal tumor and the ability to detect retropharyngeal lymph node.

Methods and Materials: Cross-sectional descriptive study conducted on 35 patients with nasopharyngeal carcinoma diagnosed and treated at Hue Central Hospital from April 2018 to July 2019. The patient underwent Magnetic Resonance Imaging and Computed Tomography. Data processed with SPSS 20.0 for Windows. Investigate the level of correlation between the two techniques based on the Kappa coefficient. Results: 14 patients had retropharyngeal lymph node metastasis with a total of 25 lymph nodes, all of which in the lateral position, none in the middle. 76% the lymph nodes are at the level of C1 vertebra. 48% of lymph nodes have heterogeneous enhancement. There is a close match between Magnetic Resonance Imaging and Computed Tomography in assessing the invasion at anatomical positions: Rosenmuller fossa, Eustachian tubes, nasal cavity, pharynx, and paranasal sinuses; There is a moderate match between the two methods in assessing the invasion of the cranial base and the sphenomaxillary suture. In 14/35 cases where the retropharyngeal lymph node was detected on Magnetic Resonance Imaging (accounting for 40%), Computed Tomography identified only 6 cases (17.1%).

Conclusions: There are differences on many levels between Magnetic Resonance Imaging and Computed Tomography in the diagnosis of tumor invasion and retropharyngeal lymph node metastasis in nasopharyngeal carcinoma. In particular, Magnetic Resonance Imaging is better in detecting retropharyngeal lymph node metastasis due to high structural contrast, these lymph nodes are often difficult to detect on Computed Tomography because it is difficult to distinguish from posterior pharyngeal structures or tumors.
Sinh thiết kim dưới hướng dẫn của siêu âm chẩn đoán u sau phúc mạc ở trẻ em: hồi cứu trên 52 bệnh nhân
Authors: Nguyen Thi Thanh Huong
Published: January 2021

Bachground: Ultrasound-guided large core needle biopsy technique has widely been applied in the diagnosis of adult abdominopelvic, mediastinal cavity, breast and neck tumors. There are few reports on ultrasound-guided biopsy using large-core needle in pediatric solid tumor. This study was to evaluate the ultrasound features and the diagnostic value of ultrasound-guided core needle biopsy for pediatric retroperitoneal tumors.

Methods: The pediatric patients with retroperitoneal tumor that determined by ultrasound, CT or MRI examination and underwent ultrasound guided core needle biopsy from October 2018 to January 2020 were reviewed at Vietnam National Children’s Hospital. A minimum of five cores in each case was obtained. 13 patients were operated and had surgical pathology results. The ultrasound features and the diagnostic accuracy of ultrasound-guided core needle biopsy were evaluated.

Results: Fifty - two patients (25 males, 27 females) were enrolled into the study. Conventional ultrasound examination showed irregular hypoechoic or mixed echo masses and calciﬁcation and liqueﬁed necrosis. The ratio of vascular encased tumors was 61.5%. The quality of tissue sample was enough to make diagnosis was 98.1% (51/52). Only one case was misdiagnosed because of inadequate tissue sample. The diagnostic accuracy of ultrasound guided core needle biopsy compared to subsequent surgical histopathology was 76.9 % (10/13). Retroperitoneal tumor pathology varied with neuroblastic tumor was 86.3% (60.8% NB, 11.8% GNB and 13.7% GN), ACC was 5.9%, germ cell tumor was 4.0% (2.0% teratoma, 2.0% yolk sac tumor) and extra renal malignant rhadoid tumor was 2.0%. No serious complication, hemorrhage or infection occurred.

Conclusions: Ultrasound-guided core needle biopsy seems to be an accurate, minimally invasive, and safe diagnostic method of pediatric retroperitoneal tumor.
Những kỹ thuật hạt nhân mới trong y học và các vấn đề pháp quy đặt ra
Authors: Do Duc Chi
Published: January 2021

In recent years, many advanced nuclear technologies has been clinically applied for diagnostics and treatment, making significant changes in disease management and the public attitude about the role of nuclear imaging and radiation therapy. In Vietnam, there have been a number of clinical facilities making use of these achievements for heathcare. However, these complex applications require more reinforcement on current regulations to ensure efficiency of medical equipment as well as minimize potential risk to patient
Nghiên cứu đặc điểm mô bệnh học và hóa mô miễn dịch của ung thư phổi tại Khoa Giải phẫu bệnh - Bệnh viện Trung ương Huế
Authors: Pham Nguyen Cuong
Published: January 2021

The diagnosis and classification of lung cancer histology often face to many difficulties in pathological practice, especially on small core biopsies. Therefore, there is a need the immunohistochemistry for determining the exact types of histopathology, reflecting prognosis and indications for treatment of lung cancer.

Objective: Evaluation characteristics histological of lung cancer. Applying the revealing of immunohistochemistry to classify the lung cancer.

Matherial and Method: Through a study on 124 patients were diagnosed as lung cancer at Hue Central Hospital from June, 2016 to June, 2019. Prospective, descriptive, cross- sectional study.

Results: - Ratio Male: Female: 2,45 / 1. The average age is disease 54,16 ± 12, the lowest age: 17, maximum: 77. The highest group is 50-69 years old (58,07%). The two most common types of histology are adenocarcinoma (46.77%), squamous cell carcinoma (30.65%), Small cell mesothelioma accounts for a very low rate (5.65%). - On the expression of immunohistochemistrical markers in adenocarcinoma: CK7 (+): 98.28%; TTF1 (+): 96.55%; CK5 / 6 (-): 100%, in squamous cell carcinoma: CK5 / 6 (+): 92.11%. P63 (+): 52.63%, TTF1 (-): 100%.

Conclusion: The expression of immunohistochemistrical markers such as CK7, TTF1, CK 5/6, P63 distinguishes between the gland cells and squamous cell, while immunohistochemistrical markers such as TTF1, NSE, Synaptophysin, Chromogranin to identify small cell carcinoma of the lung are very useful in diagnosing, classifying and treating the lung cancer.
Đánh giá ảnh hưởng của hốc khí và trường chiếu nhỏ tới phân bố liều của kế hoạch JO - IMRT trên bệnh nhân ung thư đầu cổ bằng phương pháp MONTE CARLO
Authors: Luong Thi Oanh
Published: January 2021

Purposes: The goal of this study was to use Monte Carlo (MC) simulation to examine the dosimetric effects of the air cavity on JO-IMRT dose distribution at air-tissues interfaces in head-and-neck (H&N) patients.

Methods: The EGSnrc - MC code system was used to calculate the dose reductions in air-tissue interface region for single field irradiations with 1×1, 2×2, 3×3, 4×4, and 5×5 cm2 in solid acrylic phantoms (30×30×20 cm3) and seven fields in a JO-IMRT plan. With phantom, the PDD values in both with and without an air cavity (15×4×4 cm3) which is 2.5 cm away from the anterior surface of phantom were used to evaluate. With the JO-IMRT plan, the dose-volume histograms (DVH), slice by slice isodose, and the gamma index using global methods implemented in PTW-VeriSoft with 3%/3 mm criteria were used to evaluate.

Results: The study results indicate that the dose reductions in the air-tissue interface region of the phantom are strongly dependent on ﬁeld size. The average percentage dose reductions at 1 mm from the air‑water interface for the field size 1×1, 2×2, 3×3, 4×4, and 5×5 cm2 are 62.04%, 52.34%, 40.71%, 26.72%, and 19.85%, respectively. Additionally, the mean MC dose in the PTV (65.58 Gy) of patients were lower than the TPS predicted dose (71.41 Gy).

Conclusions: From this study, we conclude that the dose reduction in near air-tissue interfaces is a significant effect on JO-IMRT dose distribution in head-and-neck (H&N) patients.
Nghiên cứu đặc điểm lâm sàng, cận lâm sàng và kết quả điều trị ung thư biểu mô tuyến vú ở phụ nữ lớn tuổi
Authors: Nguyen Tran Thuc Huan
Published: January 2021

Background: Increasing age is the most prevalent, primary risk factor for breast cancer. However, the treatment of breast cancer in older women were less active than younger women and there is a relative lack of evidence-based guidelines to inform the treatment of breast cancer in elderly woman. In this study, we evaluated the results of treatment of breast cancer in elderly woman based on the tumor characteristics.

Material and methods: This study was designed with 60 breast cancer patients older than 65 years old. Evaluation of clinical, subclinical characteristics and treatment results initially (disease-free survival and total survival after 2 years) of this group.

Results: We conducted a study of 60 elderly woman with breast cancer. The majority of patients with invasive ductal carcinoma (90%), histological grade I, II (76,3%) and the patients with stage I, II disease were 80,4%. The older patients have been found to have a greater frequency of molecular subtypes: luminal A and B (34% and 22%), however the triple-negative/basal-like was 28%. The rate of modified radical mastectomy was 93,3%, only 46,4% of patients received adjuvant therapy (chemotherapy, radiation therapy, hormonal therapy and antibody therapy). Local recurrence and distant metastasis were 11,7% and 18,3%, mortality was 16,7% with a median follow-up of 28,03 months.

Conclusions: Breast carcer in older patients has better prognosis factors than younger women. However, current adjuvant systemic therapy options for older women with breast cancer was not clear.
Sain noyon xan kolostorvárosa
Authors: Teleki Krisztina
Published: January 2021

This article gives an overview of the three-hundred-year history of one ofthe largest Mongolian monasteries. During the Manchu period (1691–1911)and the sovereignty of the Mongols (1911–1921), it was the residence of theSain Noyon Khans, the rulers of Sain Noyon Khan Aimag. Although writtensources contain inconsistent data about its foundation, development, and thenames of its temples, the reminiscences of three old monks lively illustratethe life in the monastery and its vicinity before the destruction of the monastery. The monastery had various types of temples and schools, moreover,it was the headquarter of the Sain Noyon Khan himself. A local reincarnation and a Tibetan master resided there permanently, and the ThirteenthDalai Lama also visited it in 1906. The monastery was totally destroyed in1937–1938, but after the democratic changes old monks rebuilt a temple in1990, and started to educate the new generations of monks. The area is richin gold, thus the usual task of the monks is to pacify the local spirits. Manyof the statements of the article derive from the results of the ‘Documentationof Mongolian Monasteries Project’, taking place in 2007, which aimed atdocumenting all monasteries that ever existed in Mongolia.
Kincsek a taiwani palotamúzeumból
Authors: Kápolnás Olivér
Published: January 2021

Liu Fang-Ju 劉芳如 & Cheng Shu-Fang 鄭淑方 2015. Guoli GugongBowuyuan cang Menggu wenwu huibian 國立故宮博物院藏蒙古文物彙編 – Cultural Relics of the Mongols in the National PalaceMuseum Collection – Тайваний Үндэсний "Хааны ордон" музей дэхМонголын түүх, соёлын өв дурсгалууд. Taibei: National PalaceMuseum. ISBN 9789575627348.Hu Jinshan 胡進杉 et al. (eds.) 2015. An-mani-bami-hou. Yuan cang Zangchuan fojiao wenwu tezhan. 唵嘛呢叭咪吽. 院藏藏傳佛教文物特展– Oṃ-maṇi-padme-hūṃ. Tibetan Buddhist Art in the National PalaceMuseum. Taibei: National Palace Museum. ISBN 9789575627652.
Szútrák a hosszú élethez Amoghavajra fordításában
Authors: Kiss Mónika
Published: January 2021

In the 20th volume of the Taishō Canon (大正新脩大蔵経), there are fivetexts that were all supposedly translated by Amoghavajra 不空 in the 8thcentury, and share the same subject: longevity. One of them is the FugenEnmei scripture 普賢延命経. In order to better understand its content, I willexamine the other four scriptures. First, I discuss their arrival to China andJapan, then I present their protagonists, key elements, and last I give a shortintroduction of the mantras (or dhāraṇīs) found in the texts.Although they are assembled in the Taishō Canon, their history is fullof questions and ambiguities. First of all, there is the question of their title,since only two of the four texts seem to be originally from the continent. Thetranslator is given in two of the texts; however, the Chinese and JapaneseBuddhist catalogues and canons, from time to time, seem to differ in theirattribution. The subjugation story of Gōzanze 降三世 and Daijizaiten 大自在天 creates another problem, for their scene is not to be found in the 8thcentury translations of the Kongōchō kyō 金剛頂経, only in the 10th centuryversion of Dānapāla. This raises the question why the supposed translator,Amoghavajra, or his master Vajrabodhi, did not include this scene in theirversion of the former scripture, which is one of the chief texts in the esoterictradition.