bluuebunny/crossref_metadata_2025_split huggingface dataset:
COMPARATIVE CHARACTERISTICS OF SORPTION ACTIVITY OF SAMPLES OF NATIVE HUMIC ACID AND SOME ENTEROSORBENTS
Authors: Корельская Татьяна Александровна , Журавлева Екатерина Александровна , Зубова Наталья Александровна , Айвазова Елена Анатольевна 
Published: January 2021

В работе приведен сравнительный анализ сорбционных свойств гуминовых кислот, выделенных из верхового торфа Архангельской области и некоторых энтеросорбентов (активированный уголь, полисорб и фильтрум-СТИ) по отношению к ионам Pb. Для количественной оценки сорбционной активности препаратов использовались математические модели Лэнгмюра и Фрейндлиха. Показано, что модель Лэнгмюра с наибольшей достоверностью описывает сорбционные процессы ионов свинца на поверхности прежде всего активированного угля. Сорбционные характеристики гуминовых кислот, полисорба и фильтрум-СТИ наиболее адекватно представляются с использованием математической модели Фрейндлиха, что подтверждает гетерогенность поверхностей соответствующих образцов. Структурно-функциональные особенности гуминовых кислот определяют их высокую свинецсвязывающую активность и прочность связывания иона свинца, на что указывают максимальные значения вычисленных констант Г и K. Продемонстрировано, что степень сродства препарата Фильтрум - СТИ к ионам свинца выше по сравнению с таковой для гуминовых кислот и других сорбентов. Наибольшая скорость поглощения ионов свинца выявлена для активированного угля и гуминовых кислот. На основании полученных результатов, делается вывод о перспективности разработки и применения препаратов на основе гуминовых кислот в качестве энтеросорбентов, используемых при острых отравлениях соединениями свинца.
The paper presents a comparative analysis of the sorption properties of humic acids isolated from the top peat of the Arkhangelsk region and some enterosorbents (activated carbon, polysorb, and filtrum) with respect to Pbions. To quantify the sorption activity of drugs, Langmuir and Freundlich mathematical models were used. It is shown that the Langmuir model describes the sorption processes of lead ions on the surface of activated carbon with the greatest confidence. The sorption characteristics of humic acids, polysorb, and filtrum are most adequately represented using the Freundlich mathematical model, which confirms the heterogeneity of the surfaces of the corresponding samples. The structural and functional features of humic acids determine their high lead-binding activity and the binding strength of the lead ion, which is indicated by the maximum values of the calculated constants Г and K. It is shown that the degree of affinity of the Filtrum preparation to lead ions is higher than that for humic acids and other sorbents. The highest rate of absorption of lead ions was found for activated carbon and humic acids. Based on the results obtained, it is concluded that the development and use of humic acid-based drugs as enterosorbents used in acute lead poisoning is promising.
ELECTRONIC STRUCTURE OF METHYLIDINESULFOXIDALCANES
Authors: Русакова Наталья Петровна , Чернова Елена Михайловна , Туровцев Владимир Владимирович , Орлов Юрий Димитриевич 
Published: January 2021

В рамках «квантовой теории атомов в молекулах» (QTAIM) определено электронное строение молекул ряда метилидинсульфоксидалканов n-C H-S(О)СН, где 1 ≤ n ≤ 10. Составлена качественная шкала электроотрицательностей функциональных групп.
Within the framework of the «quantum theory of atoms in molecules» (QTAIM), the electronic structure of the molecules of a series of methylidinesulfoxidealkanes n-CH-S(О)СН, where 1 ≤ n ≤ 10, was determined. A qualitative scale of electronegativities of functional groups was compiled.
COMPARISON OF THEORETICAL FOUNDATIONS AND EXPERIMENTAL DATA OF THE REACTION FOR OBTAINING N-METHYL-D-GLUCOSIMINE
Authors: Михайлов Степан Петрович , Сульман Михаил Геннадьевич , Долуда Валентин Юрьевич , Матвеева Валентина Геннадьевна 
Published: January 2021

Представленная статья посвящена сравнительному анализу теоретических основ синтеза N-метилглюкамина (основание Шиффа) и экспериментальных данных. N-метил-D-глюкозимин, это промежуточный продукт получения N-метил-D-глюкозамина, широко используемого в фармацевтике, в качестве балластного вещества или противоиона, улучшающего биодоступность основного лекарственного средства. Проведена оценка кинетических параметров синтеза, рассчитан максимальный достигаемый выход. Применение термодинамических расчетов позволяет оценить влияния условий проведения химических процессов на выход целевых продуктов, а это способствует более глубокому пониманию механизмов протекания химических реакций. В представленной статье приводятся результаты термодинамических расчётов реакции синтеза N-метил-D-глюкозимина методом Ван-Кравлена - Черемнова. Рассчитаны энергия Гиббса, константы равновесия и конверсия глюкозы при единичной активности реагирующих веществ. Показано, что увеличение температуры реакционной массы с 20 до 160°С способствует увеличению конверсии глюкозы с 3 до 32%, в связи с чем можно рекомендовать проведение этой реакции при повышенных температурах.
The presented article is devoted to a comparative analysis of the theoretical foundations of the synthesis of N-methylglucamine (Schiff's base) and experimental data. N-methyl-D-glucosimine is an intermediate in the preparation of N-methyl-D-glucosamine, which is widely used in pharmaceuticals, as a ballast or counter-ion to improve the bioavailability of the main drug. The kinetic parameters of the synthesis were estimated, and the maximum attainable yield was calculated. The use of thermodynamic calculations makes it possible to evaluate the influence of the conditions of chemical processes on the yield of target products, and this contributes to a deeper understanding of the mechanisms of chemical reactions. This article presents the results of thermodynamic calculations of the reaction for the synthesis of N-methyl-D-glucosimine by the Van Cravlen - Cheremnov method. The Gibbs energy, equilibrium constants, and glucose conversion were calculated for a single activity of the reacting substances. It was shown that an increase in the temperature of the reaction mixture from 20 to 160 ° C promotes an increase in the conversion of glucose from 3 to 32%, and therefore it is possible to recommend carrying out this reaction at elevated temperatures.
MODELING OF PYROLYSIS OF OIL RESIDUES IN THE PRESENCE OF ALUMINOSILICATES
Authors: Чалов Кирилл Вячеславович , Луговой Юрий Владимирович , Косивцов Юрий Юрьевич 
Published: January 2021

Данная работа посвящена изучению кинетики процесса каталитического пиролиза кубовых остатков нефти. Исследование проводилось методом термогравиметрии с различной скоростью нагрева образца (2,5; 5 и 10 К/мин). В качестве катализаторы была использована синтезированная каталитическая система: ZSM-5/бентонитовая глина с импрегнированным металлом (Со - 2 % масс.). При моделировании были определены формальные кинетические параметры Аррениуса процесса деструкции. Рассчитанная модель представляет собой двухстадийный параллельный процесс. Значения энергий активации деструкции для первой стадии составило 58 кДж/моль и 188 кДж/моль для второй.
This work is devoted to the study of the kinetics of the process of catalytic pyrolysis of oil residues. The study was performed by thermogravimetry with different sample heating rates (2.5, 5, and 10 K / min). A synthesized catalytic system was used as a catalyst: ZSM-5 / bentonite clay with impregnated metal (Co-2% wt.). Formal kinetic parameters of the Arrhenius of the destruction process were determined During modeling. The calculated model is a two-stage parallel process. The destruction activation energies for the first stage were 58 kJ/mol and 188 kJ/mol for the second stage.
THE PROCESS OF SELF-ORGANIZATION IN LOW-CONCENTRATED AQUEOUS SYSTEMS BASED ON N-ACETYL-L-CYSTEINE, L-CYSTEINE AND SILVER ACETATE
Authors: Аверкин Дмитрий Вадимович , Вишневецкий Дмитрий Викторович , Петров Владимир Романович , Хижняк Светлана Дмитриевна , Пахомов Павел Михайлович 
Published: January 2021

Проведено комплексное исследование процесса самоорганизации при сливании низкоконцентрированных водных растворов N-ацетил-L-цистеина и ацетата серебра. Все стадии самоорганизации изучены c помощью измерения величины рН, методов вискозиметрии, УФ спектроскопии и динамического светорассеяния (ДСР). Установлено, что началом самосборки является замена водорода в меркаптогруппе аминокислоты на катион серебра с образованием молекулы меркаптида серебра (МС). Далее происходит образование цепочек вида (-Ag-S(NCys)-Ag-S(NCys)-), при этом происходит протонирование аминокислотных остатков N-ацетил-L-цистеина. Предложен механизм самоорганизации в водном растворе N-ацетил-L-цистеина и ацетата серебра (N-ацетилцистеин-серебряный раствор - НАЦ), заключающийся в образовании агрегатов типа «ядро-оболочка». «Ядро» агрегатов состоит из цепочек вида (-Ag-S(NCys)-Ag-S(NCys)-), «оболочка» агрегатов состоит из протонированных аминокислотных остатков. Связывание таких агрегатов происходит посредством образования связей с ацетат-анионами.
A comprehensive study of the self-organization process during the draining of low-concentration aqueous solutions of N-acetyl-L-cysteine and silver acetate was carried out. All stages of self-organization have been studied using pH measurements, viscometry, UV spectroscopy, and dynamic light scattering (DLS). It was found that the first stage of self-assembly is the replacement of hydrogen in the mercapto group of an amino acid with a silver cation with the formation of a silver mercaptide (MS) molecule. Further, the formation of chains of the form (-Ag-S(NCys)-Ag-S(NCys)-) occurs, while excess electron density is retained in amino acid residues, leading to the interaction of chains with both silver cations and undissociated silver acetate molecules , with the formation of clusters. The mechanism of self-organization of the system as the formation of the aggregates of the «core-shell» type is proposed. The «core» consists of chains of the form (-Ag-S(NCys)-Ag-S(NCys)-), the «shell» consists of protonated N-acetyl-L-cysteine resides. Further bonding of aggregates into clusters occurs through free acetic acid anions.
Mixed FBM-traffic hypothesis
Authors: Сидорова Оксана Игоревна , Бурдина Елизавета Михайловна , Сергеева Евгения Вадимовна , Тихомирова Александра Юрьевна 
Published: January 2021

В данной статье предлагается алгоритм проверки гипотезы о наличии в трафике двух независимых компонент, описываемых фрактальными броуновскими движениями с разными параметрами Хёрста H. Тестовая статистика основана на сумме по частоте и масштабу логарифмов модулей вейвлет-коэффициентов и имеет в пределе нормальное распределение при нулевой (монофрактальный трафик) и альтернативной (мультифрактальный процесс) гипотезах.
In this article we consider some test for presence in traffic two different independent FBM-components with different Hurst parameters H. Test statistics are based on the sum of frequency and scale logarithms of wavelet coefficients absolute values and asymptotically converge to a normal distribution under null (monofractal traffic) and alternative (multifractal process) hypotheses.
On equivalence of two PFP-operator semantics
Authors: Секорин Всеслав Станиславович 
Published: January 2021

В работе рассмотрены два различных определения для оператора частичной фиксированной точки и показано, что для алгебраических систем, содержащих как минимум два элемента, их выразительная сила эквивалентна. Для этого мы выражаем каждый тип PFP-оператора при помощи другого.
We consider two different semantics of partial fixed point (PFP) operator. We establish that they are equivalent for structures those contain more than one element. For this purpose we show how to translate each type of PFP-operator to other one.
On definability of one-symbol languages in the monoid of finite languages with concatenation
Authors: Дудаков Сергей Михайлович 
Published: January 2021

Мы рассматриваем алгебру всех конечных языков над многосимвольным алфавитом с операцией конкатенации. Ранее было показано, что если взять подобную алгебру, но состоящую из всех регулярных многосимвольных языков, то в ней можно интерпретировать алгебру регулярных односимвольных языков, откуда следует, что теория обеих этих алгебр эквивалентна элементарной арифметике. В настоящей работе мы доказываем аналогичный результат для алгебры конечных языков: в ней определима подалгебра односимвольных языков, а сама она имеет теорию алгоритмически эквивалентную элементарной арифметике.
We consider an algebra of all finite languages with the concatenation operation. For one-symbol languages it is known that its theory is equivalent to the first-order arithmetic. Earlier it was proved that for regular languages a one-symbol algebra can be interpreted in multi-symbol algebras. Here we show how to define a one-symbol subalgebra in multi-symbol algebras for finite languages.
Turizm Rehberliği Alanındaki Lisansüstü Tezlerin Bibliyometrik Çerçevesi
Authors: ZENGİN Burhanettin , ATASOY Burak 
Published: January 2021

Turizm rehberliği toplumlararası kültür aktarımını sağlayan ve mesleği icra edenlerin kültür elçisi olarak ifade edildiği bir alandır. Destinasyonlara yönelik turizm hareketlerinin yaklaşık 1.5 milyar katılımcıya ulaşması, turizm rehberlerine olan ihtiyacı arttırmıştır. Ortaya çıkan profesyonel turist rehberi ihtiyacı ise Türkiye’de kurslar, ön lisans, lisans ve lisansüstü programlar yardımıyla karşılanmaktadır. Bu kapsamda araştırma, turizm rehberliği konulu lisansüstü tezlerim geçmiş ve mevcut durumunun incelenmesi amacıyla gerçekleştirilmiştir. Yüksek Öğretim Kurumu Tez Merkezi (YÖKTEZ), veri tabanında yer alan turizm rehberliği ile ilgili konular üzerinde yapılan lisansüstü tezlerin bibliyometrik analizi gerçekleştirilmiştir. Araştırmada tarama modeli esas alınarak 1989-2019 yılları arasında yapılmış 87 lisansüstü teze ulaşılmıştır. Araştırma kapsamında elde edilen veriler çeşitli parametreler ışığında yorumlama ve değerlendirme süreçlerine tabi tutulmuştur. Sonuçlar turizm rehberliği alanında 2015 yılı sonrası lisansüstü eğitimde bir artış ve ilk kez Turizm Rehberliği Anabilim Dalında yayımlanan lisansüstü çalışmaların olduğunu göstermektedirBu makalenin ilk hali 30-09-2020 tarihinde yayınlandı. https://dergipark.org.tr/tr/pub/alanyaakademik/issue/57002/702194
Sedentary behavior associates with young adult smoking prevalence: Short communication
Authors:   Bellarmine University, Lan-sing  School  of  Nursing  and  Health  Sciences,  Department  of  Respiratory  Therapy,  Lou-isville, KY, USA, Alshammari Nawaf R , Walker Jerome F ,   Bellarmine University, Lan-sing  School  of  Nursing  and  Health  Sciences,  Department  of  Respiratory  Therapy,  Lou-isville, KY, USA
Published: January 2021

Background Sedentary behavior and smoking prevalence in young adults, both prominent population health risks, are high value health promotion targets. Methods Cross sectional design: Public-use data drawn from Wave 3 of the 2001-2002 National Longitudinal Study of Adolescent and Adult Health (Add Health), representing 18-26 year-old young adults, n = 4203. This study examined the association of sedentary behavior and educational attainment with young adult smoking status (smoker versus nonsmoker), using logistic regression analysis. Sedentary behavior was approximated by self-reported hours spent weekly watching television. Follow-up analysis examined the association of nicotine dependence, measured by the Heaviness of Smoking Index (HSI), and sedentary behavior in young adult smokers, using General Linear Modeling. Results Comparing sedentary behavior quartiles (1 and 4, least and most), smoking prevalence was 30% lower in quartile 1 (OR=0.698 [CI=0.566-0.862] (p=0.001), and 19% lower in quartile 2 (OR=0.813 [CI=0.662-0.998] (p=0.048). Young adult smoking prevalence was increased among young adults with high school education or less compared to those having attended at least some college (OR=2.22 [CI=1.876-2.635], p=0.001). Follow-up General Linear Modeling showed no effect of sedentary behavior on the Heaviness of Smoking Index (HSI) among young adult smokers, p=0.065. Conclusion Although sedentary behavior and lower educational attainment associate with greater young adult smoking prevalence, more sedentary young adult smokers are no more nicotine dependent. Potential benefits of incorporating measures to increased daily movement in into smoking cessation programs are discussed.
Pengenalan teknik Pembuatan Kapsul Black Garlic di Desa Sembalun Bumbung
Authors: Alawiyah Sopiati , Dewi Mia Maharani , Sarjan M. 
Published: January 2021

Introducing an appropriate technologyÂ by University of MataramÂ student group of KKN ( Kuliah Kerja Nyata) or Community Service program Â was conducted in Sembalun Bumbung village Sembalun District, East Lombok Regency, West Nusa Tenggara Province. One of the aim of this program is to improve the added values of local existing product suchofÂ as â€œBlack Garlicâ€ that was modified into Â into Black Garlic Capsules. Â The program targeted partners of farmer groups, youths, and PKK (Pendidikan Keseahteraan Keluarga) group Â by providing information on knowledge transfer and fermented garlic skill becomes a food product ( Black Garlic Capsules) as the prospective Â business opportunity to increase the economy of the local community. The methods used inÂ this program includingÂ the steps as follows , Intoducing the research on the development of black garlic, the demonstration and training on product manufacture , packaging and marketing training, assisting and mentoring to partnership and conducting evaluation during training. The result of thisÂ program showed a positive response from village officials and its local people as c indicated byan be seen fromÂ the enthusiasm of the participant during the training and activelyÂ involved in the partnership. In addition, from this program indicated that the rapid knowledge improvement of the partnership on producing Black Garlic, the skill and capability improvement in practicing the processed product by the partnership , as well asÂ it makes them interested to produceÂ black garlic capsules to gainÂ additional income for their family.
Perfil dos produtores e consumidores de carne de frango caipira na região do Alto São Francisco – MG
Authors: Geraldo Adriano , Valentim Jean Kaique , Zanella Joyce , Mendes Janaína Palermo , Silva Ariadne Freitas , Garcia Rodrigo Garófallo , Eberhart Bruna De Souza , Pantoja Jéssica De Carvalho 
Published: January 2021

A produção e o consumo de carne de frango tem crescido muito durante os últimos anos. Com isso os consumidores e os produtores de frango passaram a se preocupar mais com cada processo produtivo da cadeia avícola, visando assim um produto final de boa qualidade. Assim, objetivou-se avaliar o perfil dos produtores e consumidores de frangos tipo caipira da Região do Alto São Francisco – MG. A pesquisa foi realizada no município de Bambuí – MG, situado no centro oeste mineiro. Participaram do questionário 60 bambuienses abordados em diferentes supermercados da cidade, feiras-livres, e nas próprias residências, onde foram utilizados questionários já pré-definidos. A análise dos dados foi realizada com o auxílio de planilhas eletrônicas, sendo utilizado o Microsoft Office Excel® 2007. Os consumidores de carne de frango caipira estão interessados em saber a origem do produto, bem como a garantia de um produto saudável, com preço acessível, e de qualidade. O sabor do frango caipira ainda é o fator determinante pra quem procura esse tipo de alimento. Pode-se observar com a pesquisa que a produção de frango caipira é uma atividade com grande potencial de venda, mas ainda carece de ferramentas relacionadas a melhoria do processo produtivo, que impulsionem os criadores a trabalharem com mais qualidade. A produção de qualquer produto de origem animal precisa cada vez se adequar as normas de bem-estar, uma realidade que poucos produtores conhecem.
Identification of Thalassemia Carrier in Anemic Pregnant Women at Puskesmas Kertapati Palembang: Comparison of Five Erythrocyte Indices
Authors: Purwoko Mitayani , Erenkwot Eriko 
Published: January 2021

Anemia is a condition that is almost always found in pregnancy. Although a program of Fe tablets has been introduced during pregnancy, the prevalence of anemia during pregnancy is still high. This situation maybe caused by another risk factor of anemia such as Thalassemia. This study was aimed to investigate the presence of carrier Thalassemia in pregnant women at the Puskesmas Kertapati, Palembang, South Sumatera using erythrocyte indices. This was a cross-sectional study with a sample size of 68 subjects, taken by purposive sampling technique. Hemoglobin level of all subjects was measured by Easy touch GCHb and confirmed by Sysmex K21. Differences of hemoglobin between Easy Touch GCHb and Sysmex K21 were analyzed by impaired t-test used SPSS program. Other data were analyzed using descriptive statistic.The mean hemoglobin levels in subjects were 10.7 g/dl. There were 68 subjects have anemia according to Easy Touch GCHb but only 30 subjects that confirmed positive anemia by Sysmex KX 21. T-test result gavep value <0.05 that isconsidered there was a statistically significant difference between Easy Touch GCHb and Sysmex KX 21 results(p=0.001). Calculations using the England-Fraser index, Mentzer, Sirdah, and Srivastava indicate that none of the research subjects had thalassemia carrier status.
Cardio-vocal Syndrome as a Complication Patient with Severe Mitral Regurgitation and Moderate Aortic Regurgitation with Pulmonary Hypertension
Authors: Basworo Adityo , Subagjo Agus 
Published: January 2021

ABSTRACT Hoarseness due to paralysis of vocal cord, as in Cardio-vocal syndrome, is caused by mechanical affection of left recurrent laryngeal nerve from enlarged cardiovascular structures. Mitral valve prolapse is rarely found to cause this syndrome. Case report presenting a 47 years old male visited the outpatient department with a clinical history of dyspnea and hoarseness since a year ago. Physical examination revealed late systolic murmur in apex and low-grade diastolic murmur in right second intercostal space. Echocardiography confirmed severe mitral regurgitation due to flail anterior mitral valve leaflet with severe left atrium dilatation (9.0 cm) and moderate aortic regurgitation due to mal-coaptation of aortic valves. Laryngoscopy revealed an immobile left vocal cord. He underwent successful double valve replacement after three months follow up the patient showed improvement of hoarseness. The incidence of Cardio-vocal syndrome in mitral valve disease varies from 0.6% to 5%. In cases diagnosed with thoracic disease, paralysis of the left vocal cord was reported 1.75 times more frequent than the right side. The aim of this case report is we have to aware that Cardio-vocal syndrome is a rare cause of vocal cord paralysis and should be considered as a differential diagnosis of hoarseness, particularly if the patient has a cardiac history. Comprehensive evaluation and prompt treatment may allow reversal of the damage to left recurrent laryngeal nerve. Permanent nerve damage can occur due to late diagnosis. Keywords : Cardio-vocal syndrome, Mitral regurgitation, Aortic RegurgitationCorrespondence : adityobasworo@gmail.com