bluuebunny/crossref_metadata_2025 huggingface dataset:
CATALYTIC TECHNOLOGIES FOR INCREASING QUALITY OF MOTOR FUELS
Authors:   JSC «Institute of Fuel, Catalysis and Electrochemistry named after D.V. Sokolski», MASSENOVA A.T. , KALYKBERDIYEV M.K. ,   JSC «Institute of Fuel, Catalysis and Electrochemistry named after D.V. Sokolski», KASSENOVA D.Sh. ,   JSC «Institute of Fuel, Catalysis and Electrochemistry named after D.V. Sokolski», MАKANOV Kh. ,   Aturau University of Oil and Gas
Published: March 2021

The aim of the work was to study the process of hydrodearomatization and alkylation of gasoline fractions under increased hydrogen pressure. It has been used Rh-Pt (9:1)/Al2 O3 catalyst in the work. It has been studied the hydrogenation of three gasoline fractions of «Atyrau Oil Refinery» LLP and Pavlodar Petrochemical Plant LLP. Technological parameters of the process of hydrodearomatization for the production of environmentally friendly fuels, containing no benzene and low in aromatic hydrocarbons have been worked out (pressure, temperature). Data on group composition of organic substances in gasolines demonstrate that after catalytic hydrogenation benzene in final samples of two fractions is absent. For hydrogenizate, the aromatic content decreased from 11.12 weight % to 2.20 weight %. For stable catalysate, the amount of aromatics decreased from 51.5 weight % to 10.96 weight %. Catalytic systems based on zeolites ZSM5 and Y modified with Mg, La, and Ce were tested during the alkylation of 2 gasoline fractions of Atyrau Oil Refinery LLP. It was established that benzene fractions was removed by 30–37% from gasoline and the content of aromatic hydrocarbons, toluene and cumene decreased by 6–10%.The catalysts were studied by BET, porometry and EM methods, which established a uniform formation of nanoscale particles on the catalyst surface.
SWEM – GREEN TECHNOLOGY FOR GENERATING FRESH WATER AND ELECTRIC POWER FROM THE ATMOSPHERIC AIR
Authors:   Galex Energy Corporation, 3033 Chimney Rock Road, Suite 605, Houston, TX, 77056, USA, BAZHAL A.I. , BARAK A.M. ,   Galex Energy Corporation, 3033 Chimney Rock Road, Suite 605, Houston, TX, 77056, USA
Published: March 2021

Providing fresh water and clean energy to inhabitants of remote villages of Kazakhstan, Ethiopia, Eastern China, other countries and areas where people are living in scarcity of water and energy and often are literally dying from lack of water and food is not a matter of business. It’s a matter of humanity. Making it more economic than any other sources of energy and water is the matter of business. World is spending billions of dollars trying to find water on Mars. Galex invented the most efficient and economical method providing water, power and chance of growing food on lands that was unsuitable for farming due to lack of water. Megapolises like Almaty, Beijing, Mexico City, many others, where people suffer from respiratory diseases, having to inhale air polluted with exhausts from vehicles and power plants, states like Central Kazakhstan, California, Middle East where periodic droughts kill harvests shall no longer be subjects of those problems. Galex has a viable and economic solution to it. SWEM – efficient, cost effective and universal technology for green energy and fresh water production.
Как сделать Казахстан самой конкурентоспособной и передовой нефтяной страной мира
Authors:   первый вице-президент Национальной инженерной академии РК, Надиров Н.К.
Published: March 2021

Нефтяную отрасль, как и мировую экономику в целом, потряс ранее невиданный кризис, связанный с пандемией COVID-19, который требует принять экстренные меры для его преодоления.
ROAD BITUMEN WITH A MAN-MADE MODIFIER
Authors:   Doctor of Technical Sciences, Chief Researcher, https://orcid.org/0000–0001–8764–6979, ISHMUHAMEDOVA, N.K.
Published: March 2021

In this work, for the development of oil bitumens, the high-tar oil of the Karazhanbas field, which is economically unprofitable for processing, is used as an additive to the tar of a mixture of oils of Martyshi + Mangystau. As a modifying and plasticizing agent, a technogenic modifier – elemental sulfur (waste from the Tengiz oil and gas processing complex) was used, and various induction moments were introduced, which are an additional source of structure formation of the oxidized feedstock. The Karazhanbas oil field, although economically unprofitable for processing, is unique in its component composition. It contains a large number of high-molecular and resinous-asphaltene components (resins 24,18% and asphaltenes 4,85%) prone toassociative interactions and structure formation. Asphaltenes, in turn, are stabilizers of molecular weight growth, and, in general, make a significant contribution to improving the technological parameters of the target product-bitumen. The mechanism of action of elemental sulfur is that when dispersed with a reaction mixture, there is an increase in the release of acid gases, such as: H2S, CO, SO2, which is explained by an increase in the rates of polycondensation and compaction reactions. This increases the rate of reaction of bitumen sulphurization in the reaction system. Over time, the intensity of gas release decreases due to a gradual decrease in the rates and further cessation of compaction and polycondensation reactions. The structure of the bitumen stabilizes. Induction moments were used as an additional object of the structure builder. The creation of the induction factors increased the amount of reactive monocularity and bicyclogermacrene hydrocarbons (as confirmed by the indicators of instrumental analysis) that accelerate the formation of high molecular compounds, which leads to increased molecular weight of oxidizable starting material, thereby improving the technological parameters of the resulting bitumen. Technogenic sulfur and induction moments in tandem have a combined effect on the physical and mechanical characteristics of the developed bitumen. Summarizing the above results of experimental work, it should be noted that by choosing the calculated amount of raw materials, additives and varying various induction moments, you can get bitumen of the BN 80/120 brand, and this makes it possible to dispose of man-made waste, which is economically and environmentally appropriate.
NEW TECHNOLOGY FOR LIQUEFIED NATURAL GAS PRODUCTION FOR MOTOR TRANSPORT AND PROVISION OF REGIONS WITH GAS SUPPLY
Authors:   Director, https://orcid.org/0000–0003–1934–7971, MERPEYISSOV Kh.S. , FINKO V.V. ,   General Director, Engineer, FINKO V.E. ,   CandidateofTechnicalSciences, CorrespondingMember oftheInternationalAcademy of Refrigeration,Chief Structural Engineer
Published: March 2021

For implementation of Government Decree on conversion of transport to gas fuel and provision of regions with gas supply the new field-proven technologies for liquefied natural gas production are proposed ensuring the lowest possible production cost of the product. Cost recovery for installations up to one year. Operational life of non-rotating installations is commensurate with the service life of the main gas lines. There are no analogues of such installations in world practice
PROBLEMS OF OPERATION OF OIL AND GAS COMPLEX IN THE CONDITIONS OF FORCE MAJEURE
Authors:   Doctor of Economics, Professor, https://orcid.org/0000–0001–9508–1912, EGOROV, O.I.
Published: March 2021

The widespread spread of the new disease, which has covered almost all countries of the world, has led to a decrease in their economic activity and, as a consequence, to a reduction in the consumption of hydrocarbon resources. This has significantly affected the economy of Kazakhstan and, in particular, the oil industry. Such an unfavorable development of the country’s economy is aggravated by the instability of world prices for hydrocarbon resources. This process is influenced by both political factors and the steady increase in supply over demand that has developed in recent times on world markets. Under the influence of such unfavorable factors on the efficiency of the oil and gas industry, the main directions for increasing it are the reduction of production costs and the increase in the output of marketable products in hydrocarbon processing.
OBTAINING EFFECTIVE SORBENTS FROM SECONDARY PLANT RAW MATERIALS FOR WATER PURIFICATION FROM OIL PRODUCTS
Authors:   doctor of chemical Sciences, Professor Head of the Department for training of scientific personnel national center for complex processing of mineral raw materials of the Republic of Kazakhstan, https://orcid.org/0000–0003–2997–0716, MIRZALIEVA S.K. , BAGASHAROVA Zh.T. ,   candidate of Technical Sciences, RSE «National center for complex processing of mineral raw materials of the Republic of Kazakhstan», The senior researcher Department of «Technology of metals and minerals» KazNU al-Farabi at RSE «NC KPMS RK», https://orcid.org/0000–0001–8996–8656
Published: March 2021

As world practice shows, the most promising and economical way to purify water from organic pollutants is the sorption method. The degree of purification by this method reaches 80–95% and depends on the chemical nature of the adsorbent, the area of the adsorption surface and its availability, as well as on the chemical structure of the substance and its state in water. Therefore, the creation of cheap effective sorbing materials of a wide spectrum of action using available raw materials of natural and plant origin is one of the most promising ways to solve this problem.It has been established that sorbents – corn cobs, grain waste, buckwheat husks from 7.2 to 14.1 g/g, the lowest oil absorption – birch and activated charcoal – have the greatest oil absorption capacity. The walnut shells with birch and activated charcoal values ranging from 1.3 to 2.1 g/g had the lowest water absorption capacity.
ПОЛУЧЕНИЕ КАЧЕСТВЕННОГО СОРБЕНТА ИЗ ОТХОДОВ РИСА И НЕФТЕШЛАМА
Authors:   кандидат химических наук, профессор, директор Института химических исследований и технологий, http://orcid.org/0000–0001–8765–3386, Аппазов Н.О. , Базарбаев Б.М. ,   инженер лаборатории инженерного профиля «Физикохимические методы анализа», http://orcid.org/0000–0003–1574–8145, Акылбеков Н.И. ,   PhD, руководитель лаборатории инженерного профиля «Физикохимические методы анализа», заместитель директора института химических исследований и технологий, http://orcid.org/0000–0002–7584–9741, Жаппарбергенов Р.У. ,   магистр сельскохозяйственных наук, научный сотрудник лаборатории инженерного профиля «Физикохимические методы анализа», http://orcid.org/0000–0002–0567–3226, Канжар С.А. ,   студент по специальности «Химическая технология органических веществ», https://orcid.org/0000–0003–4553–3049, Диярова Б.М. ,   PhD-докторант по специальности «Химия», https://orcid.org/0000–0002–1086–369X ¹Кызылординский государственный университет им. Коркыт Ата, Республика Казахстан, 120014, г. Кызылорда, ул. Айтеке би, 29А ²Казахский национальный женский педагогический университет, Республика Казахстан, 050000, г. Алматы, ул. Айтеке би, 99
Published: March 2021

Проведен со-термолиз рисовой шелухи и соломы с нефтешламом с целью получения широко применяемого адсорбента – активированного угля. Карбонизацию проводили в трубчатой печи, изготовленной из нержавеющей стали при температуре 500ºС и активацию карбонизата осуществляли водяным паром при температуре 800ºС. Изучено влияние соотношения исходных компонентов сырья (шелуха / солома:- нефтешлам) на свойства продукта. Оптимальным соотношением для со-термолиза шелуха: нефтешлам является 9:1 (по массе), соответственно. Оптимальным условиемполученияактивированногоуглясо-термолизомрисовойсоломыинефтешлама является температура карбонизации 500ºС с продолжительностью 100 мин., активации карбонизата при температуре 850ºС и при соотношении вода: карбонизат = 2:1. Изучены такие показатели, как адсорбционная активность по йоду, суммарный объем пор по воде, массовая доля влаги и насыпная плотность. Микроструктуры полученных активированных углей изучали на сканирующем растровом электронном микроскопе. Активированный уголь, полученный совместной переработкой рисовой шелухи и нефтешлама в соотношениях 9:1, соответствует активированному углю марки ДАК. Полученный продукт на основе рисовой соломы и нефтешлама соответствует активированным углям марки БАУ-МФ, БАУ-А и БАУ-Ац.
TYPE DESIGNS OF THE PALEOZOIC COMPLEX SECTIONS OF THE EAST EDGE OF THE PERI-CASPIAN DEPRESSION
Authors:   Doctor of Geology and Mineralogy Sciences, Academician of the Academy of Mineral Resources of the Republic of Kazakhstan, https://orcid.org/0000-0002-4518-0055, ABILKHASIMOV Kh.B.
Published: March 2021

The present article highlights the features of the geological structure, sedimentation conditions and the influence tectonic evolution factors on the petroleum potential within the eastern edge of the Precaspian basin. According to the features of the geological structure and lithological characteristics of the sedimentary formations of the eastern edge of the Precaspian basin, different facies zones can be distinguished, corresponding to the distinguished structural-formational zones with several types of Paleozoic sections. НЕФТЬ И ГАЗ 2021 1 (121) 7 ГЕОЛОГИЯ Based on the comparison of the Paleozoic sections for the eastern edge of the Precaspian basin it is concluded that collision tectonics was the major factor for sedimentation. Vertical facies succession influenced by tectonics and sea level fluctuations. Carbonate platforms played an important role in the distribution of sedimentary material and controlled the depth of the sea, which influenced on the composition and texture of the rocks. The presence of carbonate platforms was also reflected in the reduced thickness of the Lower Permian sediments, which are less presented within the carbonate platforms stratigraphic section comparing to the adjacent relatively deep-water areas located to the west outside the carbonate platforms. The structure of carbonate platforms was to the largest extent defined by the thrust tectonics and that controlled the distribution of oil and gas fields and potential traps.
IDENTIFICATION OF INHOMOGENEOUS LAYERS AND RESERVOIR LENSES IN TERRIGENOUS DEPOSITS
Authors:   researcher, http://orcid.org/0000-0001-6687-6425, NOVIKOVA S.P. , SIDOROV S.V. ,   researcher, https://orcid.org/0000-0002-6582-8365, RIZVANOVA Z.M. ,   engineer, https://orcid.org/0000-0003-1930-2597, FARXUTDINIV I.Z. ,   head of the department of oil and gas exploration and development, https://orcid.org/0000-0002-9085-3271
Published: March 2021

The possibilities of localizing residual oil reserves in depleted deposits of Tatarstan oilfield analyze in the article. The object of the study is the Pashian deposits of the Frasnian stage, Upper Devonian of the Almetyevskaya area, Romashkino oilfield. Possibilities of bypassed oil searching are considered. Sedimentation and heterogeneity of strata in the terrigenous Devonian sediments within the study area are analyzed in the paper. The analysis was carried out on the basis of well logging data. A detailed correlation of strata has been carried out, and members have been identified according to the rhythm of the layers’ occurrence in the Pashian horizon. The distribution of reservoirs and seals was studied based on the results of the detailed correlation. The analysis is based on a systematic analysis of the research object, which made it possible to consider the problem from different sides. The analysis of structural surfaces, maps of total and oil-saturated thicknesses, porosity, oil saturation, net-to-gross content and dissection along the upper and lower Pashian deposits was carried out. The influence of the structural factor on the reservoir properties of the formations is analyzed. The analysis made it possible to assess the heterogeneity of reservoirs in area and section and to predict the bypassed oil reserves localization.
APPLICATION OF GAS SEPARATORS TO IMPROVE CENTRIFUGAL PUMPS
Authors:   Cand.Sci., Professor, Head of the Department of Oil and Gas engineering, ORCID ID:0000-0002-6490-9972, TANZHARIKOV P.A. , DONESSOV A.T. ,   Magistrant in Oil and Gas engineering of the Department, ORCID ID:0000-0002-3410-5041
Published: March 2021

In this article, the problem of monitoring the energy consumption of electric centrifugal pumps and the method of application in the fields with the use of gas separators on the basis of reducing the harmful gas impact on electric centrifugal pumps is developed. Methods of optimization of power consumption by borehole pumps are considered. Conducting comparative bench tests of new stages of a centrifugal pump designed for pumping gas-liquid mixtures (GLM), and determining the degree of influence of free gas on the operating parameters in the entire possible working area of the stage when pumping model GLM. It is concluded that the technology of electric centrifugal pumps is used.
APPLICATION OF THE SCADA SYSTEM TO IMPROVE THE EFFICIENCY OF MANAGEMENT OF OIL STORAGE AND TRANSPORATION PROCESSES
Authors:   Candidate of Technical Sciences, Head of the Department «Oil and Gas Engineering», https://orcid.org/0000-0002-0289-7064, ABILDAEV N. A. , ABDRAIMOVA N. O. ,   Senior Lecturer of the Department of «Oil and Gas Engineering», https:// orcid.org/0000-0002-2684-7571, DEMEUOVA A. B. ,   Master of Engineering and Technology, Senior Lecturer of the Department of «Oil and Gas Engineering», https://orcid.org/0000-0002-3356-9717
Published: March 2021

Currently, the task of modernizing the automated control of the technological process of accounting, storage and transportation of petroleum products is becoming urgent at oil pumping facilities. Modern automatic process control systems require constant updating of equipment, software and technical support. As production and supply cycles become shorter and require greater flexibility, real-time data exchange on operational capacity and conditions for planning and forecasting production and operational operations becomes an important factor in the company's bottom line. The modern open platform of the SCADA system allows you to create links between the operational and information areas of engineering. In this regard, the use of SCADA technologies is the most promising method of automated control of production processes in terms of process visualization, safety and reliability
HYDROTREATMENT OF DIESEL FRACTIONS ON A MODIFIED ALUMINUM-NICKEL-MOLYBDENUM CATALYST KGO-12
Authors:   Doctor of Chemical Sciences, Head of the Laboratory of Motor Fuels, https://orcid.org/0000-0003-3670-4010, TUKTIN B. T. , TENIZBAEVA A. S. ,   Leading Engineer of the Laboratory of Motor Fuels, https://orcid.org/0000-0001-9801-0757, SEIDILDA G. T. ,   PhD doctoral student Al-Farabi Kazakh National University, https://orcid.org/0000-0001-7468-7421, SHOGANBEK D. E. ,   Leading Engineer of the Laboratory of Motor Fuels, https://orcid.org/0000-0002-3683-7473
Published: March 2021

The paper presents the results of the study of hydrotreatment of hexane, decane and diesel oil fractions on a new aluminum oxide zeolite-containing catalyst KGO – 12, modified with metals with variable valence, phosphorus and lanthanum additives. The hydrotreatment process was studied in a high-pressure flow unit with a stationary catalyst bed at temperatures of 320 – 400° C, a pressure of 4.0 MPa, and a volumetric feed rate of 2 h-1. After hydrotreating the diesel fraction of oil on the KGO – 12 catalyst at 400° C, the sulfur content in the catalysate decreases from 0.141 to 0.0092%, and the solidification temperature decreases from minus 27 to minus 57° C. The study of the process of hydrotreatment of the n-alcanes diesel fraction on the KGO – 12 catalyst showed that hydrotreatment, hydroisomerization and hydrocracking reactions occur simultaneously. It is established that the developed KGO – 12 catalyst has a high activity in the process of hydrotreating the diesel fraction of oil and makes it possible to obtain low-setting low-sulfur diesel fuel.
RISK ASSESSMENT IN OIL AND GAS PRODUCTION
Authors:   candidate of technical sciences, professor, https://orcid.org/0000-0002-6490-9972, TANZHARYKOV P.A. , SARABEKOVA U.ZH. ,   Senior Lecturer, PhD, PhD, https://orcid.org/0000-0001-9548-8333, TULEGEN A.E. ,   master student, https://orcid.org/0000-0003-1610-7104
Published: March 2021

It is necessary to carry out work to analyze the harmful factors of accidents during the production, operation and transportation of raw materials in oil and gas fields and assess their compliance with the requirements of the standards of the Republic of Kazakhstan. The main goal of labor protection is to create safe working conditions for employees, as well as to prevent personnel from illnesses. In this regard, it is necessary to have a system of accounting, analysis and assessment of the state of labor protection, as well as management of labor protection. This article proposes ways to quickly assess the state of health and safety at work by calculating a number of occupational risk indicators based on information available in the modules for assessing occupational safety by industrial risk indicators. The efficiency of using the OSH management systems software proposed by the authors is based on a specific task from four main modules "Employees", "Events", "Equipment", "Ecology" and a number of submodules. In addition, this work uses matrix methods for assessing risks in the "Probability or Consequences of an Event" coordinate system, "Elmeri" system, "Fine Kinney" method, "Risks". Modern expert methods are compared and presented under the title "Five stages of assessment"
КҮРІШ САБАНЫ МЕН МҰНАЙ ШЛАМЫН ҚОСЫП ӨҢДЕУ АРҚЫЛЫ ТҮЙІРШІКТЕЛГЕН КӨМІР АДСОРБЕНТІН АЛУ
Authors:   химия ғылымдарының кандидаты, профессор, Ыбырай Жақаев атындағы Қазақ күріш шаруашылығы ғылыми-зерттеу институты Басқарма Төрағасының м.а., https://orcid.org/0000-0001-8765-3386, Аппазов Н.О. ,   ҚОРҚЫТ АТА АТЫНДАҒЫ ҚЫЗЫЛОРДА МЕМЛЕКЕТТІК УНИВЕРСИТЕТІ, Қазақстан Республикасы, 120014, Қызылорда қ., Әйтеке би көшесі, 29А,   ЫБЫРАЙ ЖАҚАЕВ АТЫНДАҒЫ ҚАЗАҚ КҮРІШ ҒЫЛЫМИ-ЗЕРТТЕУ ИНСТИТУТЫ, Қазақстан Республикасы, 120014, Қызылорда қ., Абай даңғылы 25Б., Диярова Б.М. ,   «Химия» мамандығы бойынша PhD – докторант, https://orcid.org/0000-0002-1086- 369X;  ҚАЗАҚ ҰЛТТЫҚ ҚЫЗДАР ПЕДАГОГИКАЛЫҚ УНИВЕРСИТЕТІ, Қазақстан Республикасы, 050000, Алматы қ., Айтеке би көшесі, 99., Базарбаев Б.М. ,   «Физика-химиялық талдау әдістері» инженерлік бейіндегі зертхана инженері, http://orcid.org/0000-0003-1574-8145; ҚОРҚЫТ АТА АТЫНДАҒЫ ҚЫЗЫЛОРДА МЕМЛЕКЕТТІК УНИВЕРСИТЕТІ, Қазақстан Республикасы, 120014, Қызылорда қ., Әйтеке би көшесі, 29А, Асылбеккызы Т. ,   «Бейорганикалық заттардың химиялық технологиясы» мамандығының магистранты, https://orcid.org/0000-0001-5337-2164; ҚОРҚЫТ АТА АТЫНДАҒЫ ҚЫЗЫЛОРДА МЕМЛЕКЕТТІК УНИВЕРСИТЕТІ, Қазақстан Республикасы, 120014, Қызылорда қ., Әйтеке би көшесі, 29А, Канжар С.А. ,   «Органикалық заттардың химиялық технологиясы» мамандығының студенті, https://orcid.org/0000-0003-4553-3049; ҚОРҚЫТ АТА АТЫНДАҒЫ ҚЫЗЫЛОРДА МЕМЛЕКЕТТІК УНИВЕРСИТЕТІ, Қазақстан Республикасы, 120014, Қызылорда қ., Әйтеке би көшесі, 29А
Published: March 2021

Бұл мақалада белсендірілген көмір алу үшін күріш қалдығымен мұнай қалдығына байланыстырушы карбоксиметилцеллюлозаның әсері зерттелді. Күріш қалдығы (қауызы және сабаны) мен мұнай шламын бірге өңдеу арқылы брикеттелген белсендірілген көмір алу үшін қоспаға карбоксиметилцеллюлоза қосылды. Брикетті карбонизациялау және белсендіру кварцты шыныдан жасалған түтікте ұзындығы 300 мм және диаметрі 60 мм, қыздыру бөлімінің ұзындығы 200 мм болатын BR-12 NFT сериялы жоғары температуралы вакуумдық түтікті пеште жүргізілді. Пешке күріш қалдығы (қауызы мен сабаны), мұнай шламы және карбоксиметилцеллюлоза қосу арқылы алынған брикет орналастырылды. Карбонизация 500ºС температурада, белсендіру 850ºС температурада 2:1 қатынаста су буымен жүргізілді. Күріш қалдығы мен мұнай шламына карбоксиметилцеллюлоза байланыстырғышын қосу қатынастарының өнім қасиетіне әсері зерттелді. Қоспаны бірге өңдеудің оңтайлы қатынасы күріш қауызы:мұнай шламы: карбоксиметилцеллюлоза = 9:1:2 (массалары бойынша) қатынастары табылды. Алынған өнімнің йод бойынша адсорбциялық белсенділігі, су бойынша жалпы кеуектер көлемі, ылғалдың массалық үлесі, метилен көгі бойынша адсорбциялық белсенділігі және үйінділік тығыздығы тәрізді көрсеткіштер зерттелді. Жүргізілген зерттеулер нәтижесі бойынша белсендірілген көмірдің құрамындағы карбоксиметилцеллюлоза мөлшері артқан сайын оның собрциялық қасиетінің артатындығы байқалды. Күріш қауызынан алынған белсендірілген көмір жоғары сорбциялық қасиетке ие.Тәжірибелік зерттеулер нәтижесі бойынша 9:1:2 қатынастағы күріш қауызы мен мұнай шламы және карбоксиметилцеллюлозаны қосу арқылы алынған белсендірілген көмір БАУ-А маркасына сәйкес келеді.
A magyar rendészettudomány etablációja
Authors: Sallai János
Published: March 2021

The author provides a comprehensive overview of the development and most important actors in law enforcement sciences in Hungary.
Fungi carried over in jute bags – a smoking gun for aflatoxin contamination in the food supply chain
Authors: Wang C. , Xu F. , Baker R.C. , Pinjari A. , Bruckers L. , Zhao Y. , Stevenson A. , Zhang G.
Published: March 2021

India is the largest jute and fifth largest maize producing country in the world. In India maize is commonly stored and transported in jute bags which are used multiple times. Aflatoxin contamination of maize is a major issue in India. This study evaluated the potential impact of re-using jute bags on the risk of aflatoxin contamination of maize in the food supply chain. A total of 121 jute bags were collected in India; 95 had been used for maize and 26 bags were new. Significantly higher numbers of viable aflatoxigenic fungi were counted from re-used bags (27.8 times) (P<0.05), than the number from new bags. There was no significant difference between aflatoxin concentration found in the re-used jute bags and the new jute bags (P>0.05). Further analysis revealed that the aflatoxigenic fungal population (3.0 times) and aflatoxin concentration (1.2 times) were significantly higher in jute bags that had been used for maize with higher aflatoxin contamination (14-188.4 μg/kg total aflatoxins) than in those that had been used for maize with lower contamination (0.8-5.4 μg/kg total aflatoxins) (P<0.05). The significant positive correlation (P<0.05) between the aflatoxigenic fungal population of used jute bags and aflatoxin contamination of their packed maize indicated there is a risk of cross-contamination in the supply chain introduced by re-using jute bags. This is the first study to systematically reveal the potential impact of re-using jute bags on the fungal population and aflatoxin contamination risk. The application of readily applied treatments to re-used jute bags would help to minimise the aflatoxin contamination.
Green supply chain management and firm performance: The mediating effect of green innovation
Authors: Novitasari Maya , Agustia Dian
Published: March 2021

Purpose: The purpose of this study was to assess green innovation as a mediating variable in the relationship between green supply chain management and firm performance.Design/methodology/approach: This study used the companies listed on the PROPER program for the 2010-2018 period on the Indonesia Stock Exchange. The sample collected by using purposive sampling method obtained 488 companies. The data were tested using STATA 16.Findings: The results of the analysis showed that green supply chain management had a positive effect on green innovation, green innovation had a positive effect on firm performance, and green supply chain management had no effect on firm performance. Green innovation mediated the relationship between green supply chain management and firm performance.Research limitations/implications: The limitation of this study was using companies listed on the PROPER program, so it needed to be studied by applying other companies. Besides, it only implemented green innovation, green supply chain management, and firm performance. Future studies can apply other green-related aspects and performances.Practical implications: Regarding the problem of environmental impact, companies in Indonesia can apply green innovation and green supply chain management to improve their firm performance. Companies in Indonesia are increasingly faced with pressure from stakeholders to implement green supply chain management.Social implications: It is useful for the Indonesian government in overcoming environmental impact issues by implementing green supply chain management by companies. Companies that implement green supply chain management will have an impact on increasing green innovation and firm performance.Originality/value: This study assessed the mediation of green innovation in the relationship between green supply chain management and firm performance. This indicated that here there was pressure from stakeholders to pay full attention to the environment, so that companies in Indonesia can apply green innovation and green supply chain management to improve firm performance.
Axis of Success
Authors: Sharma Nitin , Nagpal Archana , Kundal Anisha , Singla Ayushi , Jindal Vidushi
Published: March 2021

Primary and secondary stability mainly proceed along with mechanical phenomenon of implant engagement within the surrounding bone. Primary stability is an important element in attainment of secondary implant stability. Measuring stability of an implant helps dentist/operator about decision and timing of loading an implant. Primary and secondary implant stability is defined and discussed thoroughly. The factors affecting implant stability are classified and detailed in the simple manner in this review article. Till present time, no particular method has been established to evaluate the implant stability. Although resonance frequency analysis method evaluates stability of implants with the results outcome dependent on the sound theory, it surely cannot assure the success and failure or even long-term results of the dental implants.
Knowledge and Practices of Oral Hygiene among Undergraduate Students of Dayalbagh Educational Institute, Agra
Authors: Madan Suman , Verma Richa , Mathur Gul
Published: March 2021

Background:

Healthy and well-functioning teeth in all phases of life is a necessity. Teeth help in proper mastication of food as well as in word pronunciation. It gives fullness to the face, thereby helping in the social appearance of a person. Oral health and systemic health are interconnected. Past studies indicate that oral diseases cause or increase the severity of noncommunicable diseases. The general public is unaware of this connection. Thus, the present research work was planned to assess the oral hygiene practices of students and their awareness for maintenance of oral health.

Research Methodology:

The present survey was conducted among 510 students (135 boys and 335 girls) in the age group of 17–30 years studying in Dayalbagh Educational Institute. Data were collected through a questionnaire adapted from the standard tool of oral health questionnaire by the WHO.

Results and Discussion:

The result of the present study showed that 93% of the students were using toothpaste and toothbrush for cleaning teeth, but only 31% and 2% of the students were using other measures such as mouthwash and floss. Data also showed that only 44% of the students brush twice a day and only 27% visit dentist for routine checkup.

Conclusion:

Majority of the students were aware of the linkage between oral health and systemic health. Thus, it is essential to organize oral health education program at mass level to create awareness in public so that not only their oral health but also their general health can be improved.
Zinc Oxide Eugenol Paste as a Dressing Material on Surgical Raw Wounds after Wide Excision of Oral Potentially Malignant Disorders
Authors: Vishal  , Khaitan Tanya , Prajapati V.K.
Published: March 2021

Introduction:

Oral potentially malignant disorders (PMDs) have a high risk to develop oral squamous cell carcinomas which are responsible for approximately 270,000 patients annually worldwide. When surgical excision of PMD is done, a raw denuded area is formed, which is required to be addressed. The present study was done to determine the effectiveness of zinc oxide (ZnO) eugenol paste as a dressing material of such surgical raw wounds and to assess its usefulness.

Materials and Methods:

A total of thirty patients with oral PMDs underwent wide surgical excision under local anesthesia. ZnO eugenol paste with preformed sterile gauge piece was applied in denuded area as dressing and sutured. Intraoperative evaluation was done on the following criteria: handling of ZnO eugenol paste and hemostasis achieved; postoperative evaluation included pain, adherence, granulation, epithelialization, reactivity to the ZnO eugenol. and overall usefulness as an intraoral dressing material.

Results:

Good hemostasis was obtained in 24 cases (80%). The mean score of pain was recorded as 3.5. Twenty-three cases (76%) showed granulation and epithelialization was rated as good. ZnO eugenol paste with the help of sutures showed good adherence in 29 cases (96.6%). No allergic reaction was noted. ZnO eugenol dressing was proved to be very effective in 28 cases (93.3%), effective in 2 cases (6.7%), and ineffective in 0 cases (0%).

Conclusion:

The chemical, physiological, and biological properties of ZnO eugenol have proved to be useful as a dressing material in cases of raw wound formed after excision of oral PMDs It is not a replacement for skin graft or collagen biodegradable membrane, but it can be one of the armamentaria for the oral surgeon in such cases.
Effect of Low-Level Laser Therapy on Wound Healing After Gingivectomy
Authors: Sharma Vikrant , Kalsi D.S. , Goyal Arushi , Chaudhry Swantika , Oberoi Naveen , Baweja Parvinder Singh
Published: March 2021

Low-level laser therapy (LLLT) is based on the principle of biostimulation or biomodulation effect. LLLT after gingivectomy has resulted in better wound healing because of its action on collagen synthesis, angiogenesis, and growth factor release. The authors here present a case report on the effect of LLLT, using a diode laser (InGaAsP), on wound healing and patient's response after scalpel gingivectomy.
Expression of CD3 and CD20 in Antistreptolysin-O Titer Seropositive and Seronegative Children with Chronic Tonsillitis
Authors: Mohamed Abeer A. K. , Alharbi Fahd A. , Khalil Sahar
Published: March 2021

Background:

Chronic tonsillitis (CT) is a common inflammatory illness in children, and serum antistreptolysin O titer (ASOT) is a common investigation performed for these cases and considered a perfect sign for tonsillectomy.

Objective:

To evaluate the expression of tonsillar T-and B-lymphocytes markers in relation to seropositive or seronegative ASOT in cases of CT.

Materials and Methods:

Thirty children (15 males and 15 females) aged 6–10 years were divided equally into two groups: Group A seropositive ASOT (≥400 IU) and Group B seronegative ASOT (<400 IU). Both performed bilateral tonsillectomy. Specimens from the removed tonsils were taken and prepared for light microscopic examination and immunohistochemical evaluation of CD20 and CD3 expression.

Results:

Seropositive ASOT group showed significant histopathologic changes in the form of hyperplasia of the stratified squamous nonkeratinized epithelium, Urgas's abscess, and severe lymphocytic infiltration. Immunohistochemical results of seropositive ASOT group showed marked expression of CD3 and CD20, while seronegative ASOT group showed mild expression of CD3 and CD20.

Conclusion:

Seropositive ASOT CT, in addition to histopathological changes, is associated with significant increase in both B-lymphocytes (CD20 expression) and T-lymphocytes (CD3 expression) markers.
A rare case of huge aneurysmal bone cyst of the pelvis
Authors: Saeed Ayesha , Chong Anahí H. , Rometsch Elke , Awais Syed M.
Published: March 2021

A 21-year-old female presented with a huge painful aneurysmal bone cyst (ABC) involving the left ilium, acetabulum, and ischium, resulting in a limp and activity limitation. After serial selective arterial embolization, intravenous bisphosphonates, and surgical curettage with bone grafting and cementing, she could achieve painless, nearly full range of motion at 2-year and 3-month follow-up with no recurrence. Her quality of life using the RAND 36-item Health Survey (version 1.0), the Musculoskeletal Tumor Society Scoring System (MSTS), and the Toronto Extremity Salvage Score indicated a good outcome. The aim of reporting this case was to show that it is safe to surgically approach a large pelvic ABC after devascularization with scleroembolic procedures augmented with intravenous bisphosphonates.
Detection rate of breast malignancy of needle localization biopsy of breast microcalcification
Authors: Chong Kian-Hwee , Huang Kuo-Feng , Kuo Hsiu-Wen , Tzeng I-Shiang , Chen Jia-Hui
Published: March 2021

Objective:

The current study aimed to retrospectively assess the cancer detection rate of needle localization biopsy of breast microcalcifications undetectable on sonography.

Materials and Methods:

Patients who underwent mammography-guided needle localization biopsy of breast microcalcifications undetectable on sonography from January 2005 to December 2017 were included in the study. Patients with incomplete medical records were excluded from the study. Patient mammograms were categorized using the Breast Imaging-Reporting and Data System (BI-RADS) assessment criteria. The percentages of benign and malignant lesions were determined by pathological examination of surgically recovered specimens. Correlation between preoperative imaging assessment and final diagnosis was investigated, and the complications associated with the procedures were recorded.

Results:

A total of 301 needle-localized biopsies were performed under mammographic guidance. The mean age of the patients was 58.18 ± 7.73 years. The overall ductal carcinoma in situ (DCIS) and cancer detection rate was 23.3%. The proportion of patients with BI-RADS 0 category and undergoing second mammography was higher in the DCIS and cancer group. A total of 227 patients did not undergo second mammography. Of these patients, 70 demonstrated BI-RADS 4 category, 34 were diagnosed with DCIS, and 5 were diagnosed with breast cancer during subsequent follow-up.

Conclusion:

Needle-localized excision of microcalcifications undetectable on sonography has high detection rate for early stage of breast cancer with low risk of associated complications. Regular mammography is a satisfactory follow-up tool for female patients with microcalcifications in the breasts. Additional studies should be performed to compare between needle-localized excision and vacuum-assisted breast biopsy.
Older People and Acute Kidney Injury: A Student Perspective on Medication Changes During Hospital Admission and Transitions of Care Follow-Up
Authors: Zika Alecia B. , Ruby Christine M.
Published: March 2021

Older people are particularly susceptible to acute kidney injury (AKI) for a variety of reasons. Because of this, medication changes during admission and transitions of care follow-up are often necessary to ensure the safety of these patients. The American Geriatrics Society’s Beers Criteria provide guidance for select medications that are potentially inappropriate in the older adult population.1However, other medications, particularly those for cardiovascular disease and diabetes that are not included in the kidney function-specific section of the Beers Criteria (Table 6), can sometimes be overlooked. This manuscript will provide insight to both pharmacists and student pharmacists on the importance of being vigilant for medications that may need dosage adjustment during episodes of AKI. As interns in the outpatient setting, pharmacy students can provide education to patients and their families in order to ensure these medications are being taken correctly and are properly restarted if their discontinuation was intended for only a short time.
Oncological and Functional Outcomes of Larynx-preserving Surgery for Hypopharyngeal Cancer: A Comparison with Definitive Radiation-based Treatment
Authors: Kim Donghyeok , Kim Nalee , Koh Sungmin , Chung Man Ki , Son Young-Ik , Oh Dongryul , Jeong Han-Sin , Ahn Yong Chan
Published: March 2021

Purpose Larynx-preserving surgery (LPS) have recently gained popularity and achieved comparable oncologic outcomes to conventional radical surgery for localized hypopharyngeal cancer (HPC). In the current study, the role of LPS has been assessed thoroughly in comparison with upfront radiation therapy (RT).Materials and Methods We retrospectively reviewed 185 candidates for LPS with cT1-2 disease; 59 patients underwent upfront LPS while 126 patients received upfront RT, respectively. Oncological and functional outcomes were investigated and compared.Results Following LPS, safe margin (≥ 5 mm) was achieved in 37.3% of patients. Overall, better clinical outcomes at 5 years were achieved following upfront LPS than those following upfront RT: overall survival (OS) (72.7% vs. 59.0%, p=0.045), disease-free survival (DFS) (59.8% vs. 45.0%, p=0.039), and functional laryngeal preservation (100% vs. 89.7%, p=0.010). Although similar outcomes were observed in patients with cT1 disease, better 5-year DFS was achieved following upfront LPS in patients with cT2 disease (57.0% vs. 36.4%, p=0.023) by virtue of better local control. Despite frequent cN2-3 disease in upfront LPS group, comparable outcomes were observed between upfront RT and LPS group. However, multivariable analyses revealed that performance status and double primary cancer diagnosed within 6 months of HPC diagnosis affected OS significantly, while treatment modality per se did not.Conclusion Although upfront LPS could provide better local control than upfront RT in patients with cT2 disease, overall outcomes were comparable following either modality. Treatment selection of larynx-preserving approach for HPC should be individualized based on tumor and patient factors.
Convergencia de medios. Plataformas audiovisuales por Internet (Over-The-Top) y su impacto en el mercado audiovisual en España
Authors: Arjona Martín José Borja
Published: March 2021

Introducción. De entre la oferta actual de televisión de pago destaca el impacto de los operadores OTT (servicios audiovisuales en streaming) en la transformación del panorama actual del mercado audiovisual español. Objetivos e Hipótesis. El objetivo general consiste en analizar la situación actual del panorama televisivo en España y compararlo con los datos disponibles acerca de la irrupción de los operadores OTT.  Partimos de la hipótesis que plantea una situación inicial de crecimiento hacia un modelo saturado, pero de gran alcance, lo que permite fragmentar las audiencias aún más pero que pone en discusión el modelo lineal televisivo y plantea serias cuestiones acerca de la viabilidad de su modelo de negocio. Método. Se llevó a cabo una revisión exhaustiva de la información publicada por fuentes secundarias, bien periódicas o no, de ámbito nacional, así como de prensa especializada. Resultados. Se confirma el descenso del consumo de televisión lineal en beneficio de la IPTV y los OTTs. En España los ingresos de la televisión de pago se equiparan a los de la televisión en abierto, confirmando el cambio de modelo hacia un sistema de televisión basado en el vídeo bajo demanda y los dispositivos móviles. El mercado de los OTT es cada vez más diverso, pero se encuentra muy concentrado en sólo dos operadores, Netflix y HBO España. Conclusiones. Se confirma la hipótesis al encontrar un panorama audiovisual saturado que supone un beneficio para los espectadores en tanto al incremento de la calidad de las producciones, especialmente las relacionadas con la ficción, pero que conlleva también un problema de visibilidad de los contenidos y un problema de agotamiento para los espectadores.
Comparing the Effect of Spinal and General Anaesthesia for Pre- Eclamptic Mothers Who Underwent Caesarean Delivery in A Tertiary, Addis Ababa, Ethiopia
Authors: Aregawi Adugna , Terefe Tsehay , Admasu Wossenyeleh , Akalu Leulayehu
Published: March 2021

BACKGROUND: Opinions are controversial regarding the use of general and spinal anesthesia in pre-eclamptic mothers undergoing Caesarean section. Some studies recommended avoiding spinal anesthesia in pre-eclamptic patients because of concern for suddensevere hypotension, while other studies support the use of spinal anesthesia as first choice reasoning less post-operative morbidity and mortality. This study aims to compare maternal outcome among pre-eclamptic women undergone caesarian delivery under general and spinal anesthesia.METHODS AND PATIENTS: A retrospective comparative crosssectional study was conducted to compare maternal outcome. Allpre-eclamptic mothers who underwent Caesarian section in Black Lion Specialized Hospital from October 2014 to October 2016 were included in the study. Data entry and analysis were conducted using SPSS version 20. Student’s T-test was used to compare the outcome in both groups and p value < 0.05 was set as cut off point for statistical significance.RESULTS: A total of 170 client documents were reviewed. The mean age of the study subjects was 28.18 + 4.66 years, with median age 28 years (IQR: 25-30). Our study shows that both general and spinal anesthesia have no difference in terms of maternal survival status, days of hospital stay, post-operative admission to ICU, and post-operative complications. However, this study found a statistically significant higher post-operative blood pressure and pulse rate among general anesthesia groups compared with spinal anesthesia group.CONCLUSION፡ Spinal anesthesia is safer than general anesthesia in terms of stable vital signs among pre-eclamptic women undergoing Cesarean section.KEYWORDS: Spinal, General, Anesthesia, Pre-eclampsia, Maternal outcome
Level and Factors Associated with Professional Commitment of Health Professionals Providing Institutional Delivery Services in Public Health Facilities, Southwest Ethiopia
Authors: Siraneh Yibeltal , Ololo Shimeles , Tsega Gebeyehu , Yitbarek Kiddus , Adamu Ayinengida , Erchafo Belay , Hailu Meaza , Woldie Mirkuzie
Published: March 2021

BACKGROUND: Professional commitment is beyond a commitment for a particular organization and implies the individuals’ perspective towards their profession and the motivation that they have to stay in their job with willingness to strive and uphold the values and goals of the profession. InEthiopia, uptake of institutional delivery services is low. However, the level and factors associated with professional commitment is not known so far. Hence, our objective is to assess the level and factors associated with commitment of health professionals providing institutional delivery services in public health facilities of  Jimma Zone, Southwest Ethiopia.METHODS: A facility-based cross-sectional study design was conducted from March 01-20, 2016. A total of 442 eligible health professionals were included from randomly selected 7 districts and 47 respective health facilities. Health professionals were requested to fill self-administered questionnaire. After checking its completeness, the data was entered into EPI data version 3.1 and exported to SPSS version 20 for statistical analysis. Factor analysis was conducted. Simple and multiple linear regression were done using 95%CI and significance was declared at P<0.05. All assumptions of linear regression and principal component analysis were checked.RESULTS: The percentage mean score of professional commitment was 72.71% (SD21.88). The percentage mean score for perceived maternal health goal scale was 68.37% with the total variance explained being 69.68%. Perceived staff interaction, work-life balance, affective organizational commitment, normative organizational commitment, personal characteristics and perceived maternal health goal were independent predictors of professional commitment.CONCLUSION: The percentages mean score of professional commitment was medium. Hence, Health professionals should foster their level of professional commitment to increase uptake of institutional delivery services.KEYWORDS: Commitment, health professionals, Institutional delivery service uptake