bluuebunny/crossref_metadata_2025 huggingface dataset:
МОДЕЛИРОВАНИЕ И МАТЕМАТИЧЕСКАЯ ОБРАБОТКА РЕЗУЛЬТАТОВ ОПЫТОВ ПО СУШКЕ СЕМЯН РАПСА
Authors: Щетинин Михаил Павлович Щетинин Михаил Павлович , Урманов  Артур Ильдарович Урманов  Артур Ильдарович
Published: July 2023

Статья описывает проведенные исследования по определению оптимальных режимов сушки семян рапса. В рамках данных исследований был проведен анализ современного состояния и проблем, связанных с уборкой и последующим размещением на хранение семян рапса. Изучено современное состояние зерносушильной техники, применяемой для сушки семян рапса, а также перспективные технологии сушки семян рапса и других масличных культур. В статье представлены результаты лабораторных исследований и производственных испытаний по моделированию процесса сушки семян рапса при квазиизотермических режимах. Изучено влияние данных режимов на качественные показатели высушиваемых семян. Результаты исследования показали, что температура сушки семян рапса не должна превышать 60 ºC, при этом скорость потока воздуха оказывает меньшее влияние на процесс сушки. По результатам математической обработки данных, полученных в ходе экспериментов, сформирована модель, применение которой позволит спрогнозировать протекание процессов сушки семян рапса при заданных параметрах, а также подобрать оптимальные параметры процесса сушки для получения ожидаемого результата. Статья может быть полезна специалистам в области сельского хозяйства и пищевой промышленности, а также научно-исследовательским институтам, занимающимся исследованием процессов сушки растительного сырья.
БИОЛОГИЧЕСКИ АКТИВНЫЕ ВЕЩЕСТВА СЕМЯН ЧИА (SALVIA HISPANICA L.)
Authors: Хабтемайкл  Гебремескал Йемане Хабтемайкл  Гебремескал Йемане , Надточий  Людмила Анатольевна Надточий  Людмила Анатольевна , Черных Татьяна Федоровна Черных Татьяна Федоровна , Сиддик  Хифзур Рахман Сиддик  Хифзур Рахман
Published: July 2023

Чиа (SalviahispanicaL.) является однолетним травянистым растением. Растение вновь становится чрезвычайно популярным в современном питании в нескольких странах мира. В последние годы использование семян чиа значительно возросло из-за их высокой пищевой и биологической ценности. Текущие результаты исследований показывают высокую питательную ценность семян чиа и подтверждают обширные полезные для здоровья свойства. Семена чиа содержат огромное количество биологически активных веществ с высокой концентрацией полезных ненасыщенных жирных кислот, безглютенового белка, витаминов и минеральных веществ. Высокая доля α-линоленовой кислоты делает чиа превосходным источником жирных кислот омега-3, которая связана с большим количеством физиологических функций в организме человека. Кроме того, семена чиа являются отличным источником фенольных соединений и антиоксидантов, таких как хлорогеновая кислота, кофейная кислота, мирицетин, кверцетин и кемпферол, которые, как считается, обладают защитным действием по отношению к болезням сердца и печени, а также антивозрастными и антиканцерогенными свойствами. Помимо этого, это источник пищевых волокон, полезных для контроля сахарного диабета и пищеварительной системы. В настоящем исследовании проводится обзор семян чиа, их химического состава, питательных свойств, антиоксидантной активности, пищевой безопасности, а также потенциального применения семян чиа в производстве продуктов питания и их положительное влияние при их потреблении на здоровье человека.
WASTEWATER TREATMENT OF PIGMENT PRODUCTION PLANTS IN TWO STAGES: PREPARED ACTIVATED CARBON AND ELECTRODIALYSIS PROCESS
Authors: Джубари  Мохаммед К. Джубари  Мохаммед К. , Таха  Билал С. Таха  Билал С.
Published: July 2023

One of the most important factors limiting the development of industrial processes is the consumption of large amounts of clean water and the generation of large amounts of wastewater. Pigments are available in a wide range of colors, consisting of small molecules practically insoluble in the medium and known to be unique compounds for many industries. They are widely used in dyestuff, cosmetics, food products, pharmaceuticals, manufacturing processes, etc. This study focuses on the removal of pigments and other components from wastewater discharged from pigment plants. The separation process was carried out in two stages: the first was to use prepared activated carbon as an adsorbent to separate the pigment, and then the separation process by electrodialysis to remove other components such as salts, acids, and others. This study considers prepared activated carbon (AC) as an effective separating adsorbent. The preparation process mainly included two-stage pyrolysis and activation using potassium hydroxide (KOH) and sodium hydroxide (NaOH).
ПОЛУЧЕНИЕ ЦЕЛЛЮЛОЗНОГО ПРОДУКТА ИЗ КОНОПЛЯНОЙ ЛУЗГИ
Authors: Зайцева Любовь Анатольевна , Волкова Анастасия Валерьевна , Миневич Ирина Эдуардовна
Published: July 2023

В связи с возрождением производства технической конопли в России увеличиваются объемы вторичного сырья, в том числе и лузги, остающейся после обрушивания семян. Цель настоящего исследования – получение целлюлозных продуктов из конопляной лузги, а также исследование физико-химических свойств полученных образцов. Исследуемая лузга содержит 40,8% целлюлозы. Целлюлозные продукты получали в лабораторных условиях пероксидным и кислотно-щелочными способами.  При пероксидной обработке в качестве катализатора была использована серная кислота.  В результате определения физико-химических, а также функционально-технологических свойств образцов установлено, что целлюлозные продукты характеризуются высоким качеством: в продукте, полученном пероксидным методом, содержание целлюлозы от 68,4% до 79,8%, лигнина от 3,6% до 9,5%, средняя степень полимеризации от 131 до 203, водоудерживающая способность 4,5-7,0 г/г продукта, жироудерживающая способность 3,0-4,0 г/г продукта; в продукте, полученном кислотно-щелочным методом, содержание целлюлозы 84,8%, лигнина 4,3%, средняя степень полимеризации 291, водоудерживающая способность 4,5-5,0 г/г продукта, жироудерживающая способность 3,0-3,5 г/г продукта.  Перспективно использование целлюлозных продуктов, полученных описанными методами, в пищевой промышленности в качестве функциональных добавок.
ХИМИЧЕСКИЙ РЕЦИКЛИНГ СТЕКЛОПЛАСТИКОВ С ТЕРМОРЕАКТИВНОЙ МАТРИЦЕЙ В СРЕДЕ СВЕРХКРИТИЧЕСКОГО ЭТАНОЛА
Authors: Проценко Александр Евгеньевич , Петров Виктор Викторович , Проценко Александра Николаевна , Люхо Илья Андреевич
Published: July 2023

Вопросы рециклинга термореактивных полимерных материалов являются актуальными во всем мире. Данные материалы стабильны длительное время при воздействии внешних факторов, что приводит к образования устойчивых техногенных отходов. В данной работе рассматривается сольволиз полимерных композиционных материалов в среде этанола, в частности, рассматриваются стеклопластики на основе эпоксидного и эпоксивинилэфирного связующих. Установлено, что эпоксивинилэфирную матрицу не удается разрушить полностью при 280 °C. Сольволиз в сверхкритическом этаноле эпоксидного пластика при 280 °C способствовал деструкции полимерной матрицы и освобождению стеклянных волокон. При более низких температурах происходит набухание матрицы с последующей частичной деструкцией. По данным SEM установлено что на поверхности регенерированных волокон имеется остаточное полимерное покрытие, толщина которого зависит от режима сольволиза. Диметр волокна, извлеченного из эпоксивинилэфирного пластика, на 1-1,5 мкм больше исходного. При этом волокна из эпоксидного пластика при температуре обработки 280 °C всего лишь на 100-300 нм больше в диаметре первичных волокон. Поверхность волокон гладкая без следов коррозии. Исследование сольволизной жидкости, полученной в результате алкоголиза эпоксидного стеклопластика, методом ГХМС показало, что большая часть представлена соединениями фенола и олигомеров на их основе. При этом полученные продукты можно использовать повторно в органическом синтезе.
ВЛИЯНИЕ УГЛЕРОДНЫХ НАНОТРУБОК НА УПРУГО-ПРОЧНОСТНЫЕ СВОЙСТВА ЭПОКСИДНОГО СВЯЗУЮЩЕГО
Authors: Кычкин Айсен Анатольевич Кычкин Айсен Анатольевич , Кычкин  Анатолий Константинович Кычкин  Анатолий Константинович , Туисов  Алексей Геннадьевич Туисов  Алексей Геннадьевич , Лебедев Михаил Петрович , Ананьева  Елена Сергеевна Ананьева  Елена Сергеевна
Published: July 2023

Исследовано влияние углеродных нанотрубок (УНТ) на свойства эпоксидного связующего. При помощи электронномикроскопических исследований показано изменение надмолекулярной структуры с образованием упорядоченных структур при введении углеродных наночастиц в эпоксидное связующее на основе эпоксидной смолы ЭД-20 и отвердителя изо-метила-тетрагидрофталевого ангидрида (Изо-МТГФА). Проанализирована возможность и эффективность применения ультразвукового диспергирования УНТ в объеме связующего. Проведены исследования влияния содержанием УНТ от 0 до 0,5 масс. % в составе эпоксидного связующего на предел прочности и модуль упругости при растяжении и сжатии, ударную вязкость по Шарпи. Установлено, что при введении УНТ в состав эпоксидного связующего наблюдается изменение вязко-упруго-прочностных свойств. Экспериментально определено, что модификация концентратом на основе УНТ ведет к увеличению модуля упругости при растяжении и сжатии и ударной вязкости. При содержании УНТ в составе эпоксидного связующего в интервале 0,25 масс. % ‒ 0,5 масс. %, наблюдается увеличение модуля упругости при растяжении на 32 % и модуля упругости при сжатии на 10 %.
DFT Studies of Solvent Effect on the Strongly Coupled Vibrations of 4-Azidoacetanilide
Authors: Perera Sathya , Wang Lichang
Published: July 2023

DFT calculations were performed to study the solvent effect on the vibrations of 4-azidoacetanilde in the range including the azido asymmetric stretch, i.e. 2000-2300 cm-1, using N, N-dimethylacetamide (NNDMA) and tetrahydrofuran (THF) as solvents. B3LYP functional was employed in the DFT calculations with 7 basis sets, 6-31G(d,p), 6-31+G(d,p), 6-31++G(d,p), 6-311G(d,p), 6-311+G(d,p), 6-311++G(d,p), and 6-311++G(df,pd). The results show that there are 7 combination bands coupling with the azide asymmetric stretch mode. As a result, the absorption profile of 4-azidoacetanilde is very solvent dependent. Specifically, stronger couplings of vibrations of 4-azidoacetanilde are predicted in NNDMA and the intensity of the azide asymmetric stretch is substantially reduced. Interestingly, the frequency of the azide asymmetric stretch of 4-azidoacetanilde in NNDMA is essentially the same as that of 4-azidotoulene. The intensity of the azide asymmetric stretch of 4-azidoacetanilde in THF is slightly increased with respect to that of 4-azidotoulene. Furthermore, the azide asymmetric stretch of 4-azidoacetanilde in THF remains nearly the same as in NNDMA but is blue shifted with respect to that of 4-azidotoulene. This indicates that a more complex and sensitive absorption profile will be expected when 4-azidoacetanilde is used as IR probe.
تأثير المحاسبة القضائية في الكشف عن عمليات الإحتيال المالي
Authors: محمد كسر
Published: July 2023

الغرض من هذا البحث هو اظهار تأثير المحاسبة القضائية في الكشف عن عمليات الإحتيال المالي ، ومن اجل الوصول الى ذلك تم استخدام المنهج الوصفي لحالة حدثت في احدى المستشفيات الأهلية في مدينة زاخو، وذلك بعد تقديم طلب رسمي من الجامعة الى محكمة الجنح في زاخو بغرض الإطلاع على ملف القضية أو الجزء المتعلق بالقوائم المالية  (كشف الدخل) والمخططات التوضيحية الموجودة في القضية والتي قدمها محامي الدعوة للمحكمة كدليل اثبات للشكوى،ظهر في القوائم المالية كيفية تلاعب المتهمان بأرباح المستشفى العامة وقسم العمليات الخاصة خلال فترة عملهما ومقارنتها بالفترة التي تلت تغيرهما لبيان التغيرات،وقد توصل الباحثة الى أن المحاسبة القضائية لها تأثير فعال في تحديد عمليات الإحتيال المالي والبنود المنحرفة في القوائم المالية وتصحيحها، وأن الإهتمام بمهنة المحاسبة القضائية أمر ضروري حيث تعتبر أداة تستخدم لمكافحة عمليات التحايل المالي والإختلاس وكشفها. وتقترح الباحثة قيام نقابات المحاسبين والمؤسسات المتخصصة بتأهيل وتدريب كوادر محاسبية كفوء يمتلكون القدرة في القيام بأعمالهم بشكل الذي يلائم التقنيات والأساليب الحديثة في مجال مهنة المحاسبية ومهنة التدقيق.
Academic Identity, Scholarly identity, and the Hero’s Journey
Authors: Norris Trevor
Published: July 2023

The notion of academic identity often refers to several different but related phenomena (Flowerdew & Wang, 2015; Gee, 2000), the first among which are the characteristics of being employed as a professor at a university and all the challenges that come with it as a professional workplace. For example, Smith et al. (2022) note that “academic identity has been a topic of interest for many years, often dealing with the complexity of the academic role within organisations where significant ‘professionalism’ (migration to key performance indicators and managerialism) has taken place following a period of significant expansion in student numbers and a move towards neoliberalism” (p. 1294). In this case the term academic identity is perhaps akin to the notion of professional identity as it shares much in common with other workplace identities and the relationships and power struggles that come with it (Billot, 2010; Clegg, 2008; see also Drennan et al., 2017; Henkel, 2005). Yang et al. (2022) discuss the role of emotional resilience in navigating this process.
Early childhood educators reflect on their conversations with parents about children’s diverse gender expression
Authors: Reddington Sarah
Published: July 2023

This research captures early childhood educators (ECEs) perspectives when communicating with parents about their children’s diverse gender expression. Since families and ECEs play a pivotal role in shaping young children’s understandings of gender, there is requirement to learn more about ECEs communications with parents. The research that informs this paper is derived from semi-structured focus groups with 15 ECEs who work with young children, ages 3-5 years, at regulated early childhood centers in Halifax, Nova Scotia, Canada. It explores the reflections from ECEs after having conversations with parents whose children identify outside the traditional constructs of masculine boy/ feminine girl. One central finding the ECEs observe is the displeasure fathers have when their sons engage in feminine interests, including the affective actions the fathers then take to regulate and remove stereotypical girl activities from their sons’ lives. This research highlights the need for more early childhood education training on gender diversity to better support non-binary, transgender children, and children from LGBTQ families and future collaboration with families.
SMART HOME INTELLIGENT SYSTEM FOR ELDER PEOPLE USING RASPBERRY PI
Authors:   Associate Professor, Department of CSE, Sri Sairam College of Engineering, Anekal, Bengaluru, C Vinola , K Radhika ,   Assistant Professor, Department of CSE, Sri Sairam College of Engineering, Anekal, Bengaluru
Published: July 2023

In order to provide home intelligent control function for the elderly more efficiently and conveniently, this paper designed a smart home system controller based on raspberry PI with simple hardware structure and low development cost. The design is implemented by raspberry PI development board and python language, and the fatigue detection algorithm is implemented by OpenCV visual library, Dlib library and EAR algorithm. Through temperature and humidity sensor, infrared extended version, LCD display screen and other hardware intelligent control indoor environment. The test results show that the fatigue state can be accurately detected and the electrical control function can be realized. This design enhanced the intelligence of household control, and met the life demand of energy-saving convenience.
LAKE CLEANING ROBOT
Authors:   Assistant Professor, Dept of CSE  Sri Sairam College of Engineering, Anekal, Bangalore, A Jenifer , C Saranya ,   Assistant Professor, Dept of CSE  Sri Sairam College of Engineering, Anekal, Bangalore, A Suguna ,   Assistant Professor, Dept of CSE  Sri Sairam College of Engineering, Anekal, Bangalore
Published: July 2023

Generally, conventional methods are manual based and it is used for collection of water debris, trash, plastic and all other types of impurities, which are floating on water bodies or by collecting this impurity by means of boat, thrash skimmer etc. And removed this impurity near the river shore and disposed of it. But this conventional method requires more manpower; hence this is risky, costly and time- consuming. By considering this all remote operated floating river cleaning machines are more efficient than conventional methods and also this is effective and eco- friendly.This machine is remote operated so manpower is not required at all. So this machine is really advantageous for reducing the water pollution on Ganga river which is caused by ‘Kumbhmela’ And also Government of India has taken charge to clean river and pond due to increasing water pollution , and so that they invest huge capital for many river cleaning project like ‘Namami Ganga’, ‘Narmada bachao’. And also developed many projects in various cities like Ahmedabad, Varanasi etc. By taking this into consideration, this Remote operated river cleaning machine is designed to clean river floating surface. This machine also includes Ultrasonic sensor and Wifi Camera. This sensor will collect data and send it to the server for real time analysis and AI will control the boat functionality. User is able to access the data using his android phone or web application.
LIDAR BASED ACTIVE SUSPENSION
Authors:   Professor & Head, Department of CSE Sri Sairam college of Engineering, Anekal, Bangalore, J.A Smitha
Published: July 2023

A car's suspension system is the device that physically separates the vehicle's body from its wheels. Traditional suspension systems have a limited ability to protect the car's chassis from the outside elements. Recent developments in this area go by the label of "active suspensions". As vehicle capabilities have risen, the suspension system's performance has significantly improved. Active suspensions are effective but by no means flawless. There are several things that can be done to make them better. Herein is the significance of this research paper. Using sensors like global navigation satellite systems (GNSSs), light detection and ranging (LiDAR), and inertial measurement units, autonomous cars are able to localize accurately and perceive real-time route information (IMUs). Using route information, cars may automatically go to a certain location without causing any traffic incidents. The majority of research on autonomous cars, although being an important reference for vehicles travelling on uneven terrain, has given little attention to information on road profiles. The precision and stability of data collected by LiDAR and IMUs are decreased by the strong vibrations that the majority of vehicles encounter when travelling over uneven terrain. On the other side, active suspension systems enable vehicles to retain stability on inclines, further ensuring sensor accuracy. In this article, we present a brand-new approach to estimating road profiles that makes use of active suspension systems on automobiles and LiDAR. In the former, an elevation map was supplemented with real-time cloud data points that were collected using 3D laser scanners, IMU, and GPS. In the latter, a Kalman filter method was used to further analyze the elevation map and fuse several cloud data points at a single map cell. The active suspension system is intended to be controlled using the model predictive control (MPC) approach in order to maintain vehicle stability and further lessen drifts of LiDAR and IMU data. The trial findings showed that the proposed approach was accurate and efficient when used in outdoor settings.
UTILIZATION OF UGV IN MINING SECTORS
Authors:   Assistant Professor, Dept of CSE, Sri Sairam College of Engineering, Anekal, Bangalore, C Valarmathi , A Suguna ,   Assistant Professor, Dept of CSE, Sri Sairam College of Engineering, Anekal, Bangalore
Published: July 2023

Many existing UGV applications in defense and mining areas have specific constraints, for example, unfit to accomplish wide range control and incapable to work in dark place, etc. Presently days the reason for Unmanned Ground Vehicle in different fields become important to stay away from the human loses. Particularly in defense and mining area to lessen the human interaction in dispatching bombs numerous recommendations are made. Here we propose a model/framework which sense the environment conditions utilizing gas sensor and temperature sensor In this structure we began designing an UGV application in a more effective with covering wide range Wi-Fi empowered controlling gadgets with night mode camera operability. This guarantees the fast detection of objects even in higher range and emphasis on mobile application where UGV is controlled from remotely. These outcomes in programmed dispatching of bombs where the human dangers is decreased.
EDUVISTA 2.0 “THE FUTURE WAY OF LEARNING”
Authors:   Assistant Professor, Dept of CSE Sri Sairam College of Engineering, Anekal, Bangalore, C Saranya , A Jenifer ,   Assistant Professor, Dept of CSE Sri Sairam College of Engineering, Anekal, Bangalore
Published: July 2023

A direct or indirect real-world representation of an environment whose components are augmented by computer produced information, ideally across many sensory modalities, is what virtual and augmented reality (AR) is all about. Augmented reality is a type of reality that is augmented digitally by the presence of virtual items in our range of vision. The basic goal of augmented reality is to incorporate elements of the digital world into a person's imagination of the actual world. This is accomplished by the integration of immersive sensations that are viewed as natural features of an environment, rather than simply displaying data. The application will mostly benefit pupils who are learning. Students can learn through interacting with virtual objects and learning materials, and by assisting students in actively interacting in the lab while completing various experiments in order to boost their understanding and learning rather than reading. Augmented Reality is a breakthrough technology that could considerably ease execution of complex operations. Augmented Reality mixes virtual and actual reality, making available to the user new tools to ensure efficiency in the transfer of knowledge for several processes and in several environments. Various solutions based on Augmented Reality have been proposed by the research community: particularly in maintenance operations Augmented Reality tools have offered new perspectives and have promised dramatic improvements. On the other side Augmented Reality is an extremely demanding technology and, at the present day, it is still affected by serious flaws that undermine its implementations in the industrial context.
MANHOLE DETECTION AND MONITORING SYSTEM
Authors:   Assistant Professor, Dept of CSE Sri sairam College of Engineering, Bangalore, V.A Guruprasath , H.D Sowmya ,   Assistant Professor, Dept of CSE Sri sairam College of Engineering, Bangalore
Published: July 2023

A smart city is the future goal to have cleaner and better amenities for the society. Smart underground infrastructure is an important feature to be considered while implementing a smart city. Drainage system monitoring plays a vital role in keeping the city clean and healthy. Since manual monitoring is incompetent, this leads to slow handling of problems in drainage and consumes more time to solve. To mitigate all these issues, the system using a wireless sensor network, consisting of sensor nodes is designed. The proposed system is low cost, low maintenance, IoT based real time which alerts the managing station through message when any manhole crosses its threshold values. This system reduces the death risk of manual scavengers who clean the underground drainage and also benefits the public.
Mediating Role of Trust Between Transformational Leadership, Knowledge Management, and Employee Innovation Among the Employees of Customs Department Dubai
Authors: Salem Rashed Ismail Bilal , Ismail Hamidi , Mohammed Fathey
Published: July 2023

Purpose:  The purpose of the study was to identify the mediating role of trust between transformational leadership, knowledge management and employee innovation among the employees of customs department Dubai United Arab Emirates. For meeting the objectives of the study and to test the framework of the study, the current study collected data from the employees of custom department of Dubai.  

 

Theoretical framework: Employee innovation is considered as a key participant in organizational success. Leadership plays a significant role in developing employee innovation; however, it becomes successful only when the leader succeeds in developing trust among the employees.

 

Design/methodology/approach: The data has been collected from 371 employees and structural equation modelling has been applied to test the relationships and mediation analysis.

 

Findings: The findings revealed that both leadership and knowledge management have a significant impact over employee innovation. Likewise, trust significantly mediate the relationship between transformational leadership, knowledge management and employee innovation.

 

Research, Practical & Social implications:  The research opens the horizons for several other studies to explore other influencing variables for promoting employee innovation

 

Originality/value: Provide a more nuanced and integrated perspective on how leadership and knowledge management affect trust and, eventually, employee innovation by evaluating them together, even though our examination of existing studies reveals that they were evaluated independently so far.
Restoration as reconnection: a relational approach to urban stream repair in Te Whanganui-a-Tara Wellington, Aotearoa New Zealand
Authors:   , Samuelson Logan
Published: July 2023

Urban stream environments have been significantly altered through processes of colonisation and urbanisation in pursuit of land for development and control over natural resources. The science and practice of river restoration has struggled to deconstruct the human-nature duality embedded in Western ontologies and draw in environmental social sciences and humanities to advance understandings of ‘restoration’ and its objectives. In Te Whanganui-a-Tara Wellington, Aotearoa New Zealand, there is growing interest in how to peel back layers of the city to restore what was there before or conceive what kind of nature might grow. More- than-human geographies can play a critical role in contributing to these efforts, guiding understandings of what it means to restore streams and live alongside them in urban centres. This research draws out the interdisciplinary potential of more-than-human theory to explore how community-based restorationists articulate and practice ethics for and with Waimapihi Stream in Te Whanganui-a- Tara Wellington. A more-than-human approach allows for a focus on the relational framings, ethics, and practices through which relational agency is achieved, and the ways this agency shapes practices and processes in the restoration of Waimapihi stream.
Islam vivido: búsqueda espiritual y expresión corporal
Authors: Medina Arely
Published: July 2023

Este artículo presenta reflexiones en torno a la búsqueda espiritual de tres mujeres mexicanas conversas al islam. Desde un enfoque cualitativo se analiza el contexto del islam en México respecto a los procesos de diversificación religiosa para comprender a través del método narrativo las dinámicas de estas tres mujeres conversas al islam. Desde la perspectiva de la religión vivida se hizo etnografía sobre cómo se piensa el islam, se externa y se corporiza. Poner atención a los itinerarios de las conversas nos permite metodológicamente salir de la mezquita para seguir la ruta de los espacios vividos y habitados.
Serum levels of GM-CSF, CCL11, CCL22 and TRAIL in patients with primary ST-segment elevation myocardial infarction and post-infarction heart remodeling
Authors: Nikolaeva A. M. , Kologrivova I. V. , Ryabova T. R. , Ryabov V. V. , Suslova T. E.
Published: July 2023

Aim: To study serum values of GM-GSF, CCL22, CCL11 and TRAIL in patients with primary ST-segment elevation myocardial infarction (STEMI) in early and late post-MI period and their relationship with heart remodeling in 12 months after acute myocardial infarction (MI) diagnosis.Materials and Methods. Eighty four patients with new-onset STEMI were enrolled in the study. Echocardiography was done on day 1 and in 12 months MI. Serum levels of GM-GSF, CCL22, CCL11, TRAIL and C-reactive protein (CRP), NT-pro-NP, troponin I, CK-MV were assessed on days 1 (T1), 7 (T2), in 6 (T3) and 12 months (T4). Patients with adverse left ventricle (LV) remodeling were classified as group 1, and patients with adaptive LV remodeling were classified as group 2 in 12 month of follow-up.Results. 64 patients underwent a 12-month follow-up, of which adverse LV remodeling developed in. Patients from group 1 showed significantly higher levels of markers of myocardial necrosis (CPK MB, troponin I) on the first day of MI and NT-proBNP at all points of the investigation than in patients from 2nd group, p < 0.05. Analysis of the chemokines revealed, that the serum concentration of GM-CSF at the points Т2, Т3, T4 and TRAIL at points T1, T4 were significantly higher, and CCL22 at all of the study and CCL11 at T1, T2, T3 significantly lower than patients from group 2, p < 0,05. According of multiple linear regression predictors of LV dilatation by the 12th month of MI were the serum levels of GM-CSF (p = 0,004), NT-pro-BNP (p = 0,009) on the 7th day of MI and the age of patients (p = 0,005).Conclusions. In patients with adverse LV remodeling have higher levels of circulating GM-GSF, TRAIL and lower levels CCL11, CCL22 in early and late post-MI period. Among the studied inflammatory biomarkers, only the level of GM-CSF on the 7th day of STEMI showed an independent relationship with late adverse LV remodeling.
Pathogenetic significance of polymorphic variants in the TREM-1 gene in the multiple organ failure risk after cardiac surgery
Authors: Khutornaya M. V. , Sinitskaya A. V. , Sinitsky M. Yu. , Ponasenko A. V. , Grigoriev E. V.
Published: July 2023

Introduction. Searching of highly specific, sensitive and easy-to-use markers of multiple organ failure (MOF) that will help to the early prognosis of this unfavorable condition, prevent complications and reduce mortality in the early postoperative period is very urgent for the modern medicine.Aim: To study the pathogenetic significance of the TREM-1 gene polymorphism in MOF in patients with coronary artery disease (CAD) in the early postoperative period.Material and methods. 592 CAD patients (564 patients with uncomplicated postoperative period and 28 MOF patients) were selected for the presented study. Genotyping polymorphic variants rs1817537, rs3804277, rs6910730, rs7768162, rs2234246, rs4711668, rs9471535 and rs2234237 in the TREM-1 gene was carried out by polymerase chain reaction.Results. It was found that the allele T (rs2234246), the allele G (rs1817537) and the allele T (rs3804277) in the TREM-1 gene were associated with an increased MOF risk after elective surgery according to the dominant inheritance model. TREM-1 polymorphic loci rs7768162 and rs4711668 were associated with a decreased MOF risk according to the additive inheritance model. We found no significant associations between polymorphic variants rs2234237, rs6910730, rs9471535, as well as inherited haplotype and MOF risk. Using the MDR analysis, three most significant models of gene-gene interactions of TREM-1 polymorphic loci associated with MOF risk in patients after cardiac surgery were identified.Conclusion. The obtained results demonstrate a significant contribution of polymorphic variants in the TREM-1 gene to the development of MOF in patients undergoing cardiac surgery.
Analysis of new coronavirus infection and post-COVID-19 syndrome in patients with multiple sclerosis: a pilot study
Authors: Malko V. A. , Bisaga G. N. , Topuzova M. P. , Vlasenko A. I. , Shcherbakova O. A. , Mikheeva A. G. , Mikhailova A. A. , Lagutina D. I. , Karonova T. L. , Alekseeva T. M.
Published: July 2023

Actuality. Currently there are no long-term studies about the course of multiple sclerosis (MS) after coronavirus disease 2019 (COVID-19), in comparison with healthy volunteers who recovered from COVID-19 and patients with MS who didn’t have COVID-19.Aim: To study effect of COVID-19 on MS course.Material and Methods. We examined 39 patients with MS who recovered from COVID-19 (40.76 ± 11 years), 21 patients with MS who didn’t have COVID-19 (38.1 ± 12 years) and 33 healthy volunteers who recovered from COVID-19 (39.7 ± 10 years). We performed neurological examination and testing according to clinical and neuropsychological scales.Results. The majority of MS patients had a mild form of COVID-19 (22 people, 68.75%). Among the symptoms of COVID-19 in MS patients, headaches (12 people, 30.8% vs. 18 people, 54.5%) and chest pain (2 people, 5.1% vs. 9 people, 27.3%) were less common than in the control group of healthy volunteers. The duration of the disease, the age of onset, the average frequency of exacerbations, the use of disease modifying therapies, the result on clinical and neuropsychological scales did not show statistically significant differences between the two groups of patients with MS. The incidence of post-COVID syndrome in patients with MS was 79.48% and 88.44% in healthy volunteers. Among MS patients who had COVID-19, there were significantly more persons with a moderate decrease in the quality of life, higher fatigue scores compared to healthy volunteers, but less apathy compared to patients without COVID-19 with MS. The presence of vaccination reduced the risk of COVID-19 infection by 7.4 times in patients with MS.Conclusion. There was no significant effect of COVID-19 on patients with MS during short-term follow-up.
Instrumental features of the differential diagnosis of metabolically associated and non-alcoholic fatty liver diseases
Authors: Venidiktova D. Yu. , Borsukov A. V.
Published: July 2023

Taking into account the lack of consensus between different scientific groups on the nature and unity of the pathomorphological substrate of non-alcoholic and metabolically associated fatty liver diseases, there is a need to find new instrumental methods for their differential diagnosis in order to develop the correct treatment and monitoring tactics.Aim: To assess the possibilities of using the complex application of instrumental diagnostic methods for the differential diagnosis of metabolically associated and non-alcoholic fatty liver disease.Methodology and Methods. The study involved 94 patients of a multidisciplinary hospital with a combination of ultrasound signs of liver steatosis according to the B-mode. As part of the two stages of the diagnostic examination, clinical, laboratory and instrumental methods were used, including a block of ultrasound diagnostics (assessment of the thickness of visceral fat, quantitative liver steatometry, two-dimensional elastography of shear waves of the liver), dual-energy X-ray absorptiometry in the “Whole body” mode. The control group included 78 patients without signs of hepatic steatosis according to B-mode ultrasound.Results. All patients were divided into groups according to signs of metabolic syndrome, with subsequent distribution into conditional groups of patients with non-alcoholic and metabolically associated fatty liver disease, highlighting the main signs of both diseases. Metabolic syndrome was detected in 24 women (29.27%), 18 men (21.95%). In 53 patients (64.63%), the presence of hepatic steatosis was quantitatively confirmed, of which 39 patients were found to be overweight or obese (47.56%).Conclusion. Indicators of the instrumental assessment of the metabolic status and a complex diagnostic algorithm were determined, allowing for differential diagnosis between non-alcoholic and metabolically associated fatty liver disease with a quantitative assessment of liver steatosis.
A clinical case of SARS-CoV-2 infection complicated by viral interstitial pneumonia and pulmonary edema in a patient with dilated cardiomyopathy
Authors: Vorobeva O. V. , Gimaldinova N. E.
Published: July 2023

COVID-19 is especially severe in patients with a premorbid background.Aim: To describe a clinical case of SARS-CoV-2 infection complicated by bilateral viral pneumonia, cardiogenic pulmonary edema, and dilated сardiomyopathy.Clinical case. Patient M.V., 76 years old, from 02.11.2022 to 03.11.2022 was hospitalized at the Republican Cardiological Dispensary with a diagnosis of Bilateral viral pneumonia, the percentage of damage was 75%. Acute respiratory distress syndrome, severe. Complaints at admission: lack of air in a horizontal position, fever up to 38,0 °С, dry cough. Computed tomography of the chest was performed; bilateral viral pneumonia was determined (75% of lesions). PCR smear for coronavirus infection was positive. Determination of troponin T from 02.11.2022: 0.022 ng/ml. History: hypertension for many years with maximum blood pressure of 190/100 mm Hg, acute myocardial infarction of the anterior wall of the left ventricle with ST segment elevation (November 20, 2021), percutaneous coronary intervention (November 20, 2021). The above complaints were noted within a week. On the second day of inpatient treatment, a lethal outcome occurred. She was sent for a post-mortem examination. In the lungs, histological examination revealed a violation of microcirculation in the form of erythrocyte sludge, stasis. Widespread atelectasis/dystelectasis. There was intraalveolar edema. On macroscopic examination, the cavities of the heart are enlarged.Histological examination revealed large-focal cardiosclerosis, areas of wave-like deformation of myocardial muscle fibers. Virological examination of sectional material in the lungs and heart revealed SARS-CoV-2 RNA.Conclusion. Viral infection with COVID-19 contributed to the development of decompensation of chronic heart failure in the form of arrhythmia and cardiogenic pulmonary edema in a patient with dilated cardiomyopathy.
Combination of acute myocardial infarction and Takotsubo syndrome
Authors: Vyshlov E. V. , Ussov W. Yu. , Kercheva M. A. , Demyanov S. V.
Published: July 2023

A 79-year-old woman was admitted to the emergency department of cardiology after transient loss of consciousness episode and a recorded ventricular tachycardia. The ST segment elevation in I, aVL, V1-V5 leads up to 6 mm and ST-segment depression up to 1 mm in III, aVF were registered at admission. The emergency coronary angiography showed of slowed coronary blood flow without stenosing atherosclerosis. The diagnosis of acute myocardial infarction was based on: 1. The typical progression of ECG: ST elevation resolved and the T wave become inverted; 2. The transient increasing CK up to 439 U/l, CK-MB up to 52 U/l and troponin I up to 5.8 ng/ml; 3. The inclusion of paramagnetic in the myocardium in the anterior wall and septum of LV by the type of ischemic damage. The diagnosis of Takotsubo syndrome based on rapid and complete recovery of contractility and geometry of the left ventricle (LV). At the 2nd day LV ejection fraction was 21%; the dyskinesis, akinesis of the anterior and antero-lateral walls of the left ventricle were registered. At the 7th day the hypokinesis zones was not detected. The article discusses the literature data on the frequency of combination of these diseases and possible pathogenetic mechanisms of this combination.
Hypercoagulation in patient with ulcerative colitis associated with antiphospholipid syndrome and latent inherited thrombophilia after COVID-19: a clinical case
Authors: Iskhakova D. G. , Subkhangulova D. O. , Safina D. D. , Ibragimova L. M. , Khazova E. V.
Published: July 2023

Patients with ulcerative colitis exacerbation associated with COVID-19 infection represent a particular group who require additional attention and follow-up due to an increased risk of thrombosis. The article presents a clinical case of a patient born in 1971 with ulcerative colitis in association with antiphospholipid syndrome. Additionally the patient had a latent inherited thrombophilia, which activation was probably caused by exacerbation of ulcerative colitis. Nevertheless, there may have been additional triggering activity of a COVID-19 infection that the patient suffered before the exacerbation of ulcerative colitis. The patient usually had a fever in the morning during an exacerbation of ulcerative colitis. During current hospitalization, fever was also presented. To clarify the cause of the fever patient’s examination was performed. Infectious and inflammatory processes, neoplasms, connective tissue diseases were excluded. However, genetic testing revealed the presence of an increased risk of thrombosis in the patient (ITGA2 C/T, ITGB3 T/C were presented). At the same time, thrombotic masses in the portal vein, subtotal thrombosis of the right hepatic branch of the portal vein, thrombosis of the upper mesenteric vein up to 30%, lower mesenteric vein up to 70% were detected during ultrasound and computer tomography (CT) examination of the abdominal cavity. It should be noted that the management of patients with exacerbation of ulcerative colitis, especially with association with COVID-19 infection, requires an individual approach considering the risk assessment of thrombotic complications. Comprehensive examination is highly recommended, including genetic testing of patients in the clinical management of such patients.
Features of diagnosis and treatment of coronary heart disease in patients without obstructive atherosclerotic lesions of the coronary arteries
Authors: Utegenov R. B. , Bessonov I. S.
Published: July 2023

In half of cases during coronary angiography (CAG), obstructive coronary artery lesions aren’t detected in patients with chronic coronary artery disease. Such patients mostly have vasospastic angina (VSA) and/or microvascular angina (MVA). These patients can be performed repeated diagnostic tests, including selective coronary angiography, but as a result they are never diagnosed correctly. This review presents modern pathogenetic mechanisms for the development and methods of diagnosing of ischemia with non-obstructive coronary artery disease. It also highlights choice of treatment tactics in accordance with the identified pathophysiological mechanism for the development of chronic coronary artery disease.
Intraoperative monitoring of intraesophageal temperature during radiofrequency ablation of the posterior wall of the left atrium in atrial fibrillation (literature review)
Authors: Yashkov M. V. , Artyukhina E. A. , Taymasova I. A. , Dedukh E. V. , Vaskovskiy V. A. , Kuznetsov N. M. , Revishvili A. Sh. , Popov A. Yu. , Vasin V. A.
Published: July 2023

Currently catheter radiofrequency ablation (RFA) has become the standard treatment for patients with atrial fibrillation (AF). During RFA, additional linear lesions are performed along the posterior wall of the left atrium, which can cause damage to the esophagus. The manuscript considers the methods introduced into practice to prevent damage to the esophagus during RFA, the pros and cons of the techniques.
Secondary organizing pneumonia after coronavirus disease (literature review)
Authors: Gofman L. S. , Shendrikov V. P. , Murlatova E. Y. , Bazdyrev E. D.
Published: July 2023

New coronavirus disease (COVID-19) is a life-threatening infection that can lead to the development of persisting symptoms. Clinical, radiological and histopathological characteristics of post-coronavirus pneumonia are similar to secondary organizing pneumonia (SOP). This type of pneumonia is considered to be a complication of COVID-19, which correlates with the severity of the disease and increases patient mortality rates.It should be noted that radiological signs of pneumonia are can be observed in recovered individuals in 67% of cases. Moreover, fibrosis, complicated by symptoms of respiratory failure, may develop in 5-8% of the cases despite the fact that SOP resolves independently in 25% of individuals, and, in most cases, can be easily treated.Currently there are no methods of treating SOP induced by COVID-19; the first-line therapy involves the use of glucocorticosteroids (GCs). Despite the effectiveness of GCs, the treatment lasts for more than six months, and the disease has a high probability of relapse upon treatment discontinuation. Clinical trials have been registered to determine the optimal treatment duration and dosages of GCs in SOP treatment after COVID-19, however, the lack of consensus remains, keeping this issue open. This review provides data regarding organizing pneumonia, SOP induced by COVID-19, its radiological signs and treatment options within the framework of ongoing clinical trials.
Analysis of the S100B protein level in patients with acute coronary syndrome associated with anxiety and depressive symptoms
Authors: Poponina T. M. , Gunderina K. I. , Poponina Yu. S. , Ryabov V. V.
Published: July 2023

Background. Acute coronary syndromes are often associated with the onset or aggravation of anxiety and depressive disorders, delirium, cerebral ischemia up to the development of a stroke.Aim: To study the level of brain-specific protein S100B in blood plasma in patients with acute coronary syndrome (ACS) associated with anxiety-depressive disorders (ADD).Material and Methods. The study included 81 patients with ACS and the presence of anxiety and depression. Patients were surveyed using the Hospital Anxiety and Depression Scale, the Beck Depression Inventory, and the Sheehan Patient-Rated Anxiety Scale. All patients underwent blood sampling to study the level of S100B protein.Results. Patients included in the study were diagnosed with clinical anxiety and subclinical depression. In 35 patients (43%), the S100B protein level varied from 0 to 90 ng/l, and in 46 patients (57%), its level was above 90 ng/l. According to correlation analysis in patients, positive correlations were found between a high level of S100B protein in the blood serum and clinical indicators (diabetes mellitus, obesity, smoking, arterial hypertension, postinfarction cardiosclerosis, a history of cerebral stroke), levels of anxiety and depression, as well as negative correlations between high level of S100B protein in blood serum and glomerular filtration rate, left ventricular ejection fraction.Conclusions. An increase in the level of S100B protein was observed in comorbid patients with clinically pronounced anxiety and depressive symptoms. It is possible that higher values of glial protein S100B in the blood at admission in patients with ACS may predict a more severe course of cardiovascular disease and a worse neurological prognosis, but it requires further study.