bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Ekologi: Hubungan Faktor Risiko dengan Prevalensi Stroke di Indonesia 2018
Authors: Sari Indah
Published: September 2022

Based on the results of the 2018 Riskesdas, it shows an increasing number of people with stroke in Indonesia. Compared with the results of the 2013 Riskesdas study, the prevalence of stroke patients increased from 7% per mil to 10.9% per mil. One of the factors that cause stroke is the behavior of not controlling blood pressure, lack of physical activity, consumption of salty foods, and smoking behavior. Objective: This study aims to determine the risk factors associated with the incidence of stroke in Indonesia. Methods: This research design uses an ecological analysis approach. The secondary data source used in this study comes from the data from the 2018 Riskesdas report at the provincial level (Ministry of Health, 2018). All districts were sampled in this study. In addition to the prevalence of stroke, there are 4 other variables analyzed as independent variables, namely variables not controlling blood pressure, lack of physical activity, consumption of salty foods, and smoking behavior. Data were analyzed using cross tabulation. Results: The results showed that the consumption of salty foods was not associated with the prevalence of stroke. While the risk factors that influence are the habit of not controlling blood pressure, lack of physical activity, and smoking behavior with the prevalence of stroke in East Java. Conclusion: Several risk factors that influence is the increased prevalence of stroke is closely related to the habit of not controlling blood pressure, lack of physical activity, and smoking behavior. However, there is no relationship between food consumption and the prevalence of diabetes mellitus in East Java.
Hubungan Volume Oksigen Maksimal dengan Denyut Nadi Istirahat Fase Pertumbuhan Dewasa Muda
Authors: Ramadhan Ilham , Nurfitriani Rizki Amalia , Jusup Sinu andhi , Aryoseto Lukman
Published: September 2022

Maximal oxygen uptake is a measure of cardiorespiratory capacity that shows human body fitness. Resting heart rate shows the ability of the heart to pump blood throughout the body thus resting heart rate related to the maximum oxygen volume. The young adult is an important phase of human in determining the productivity of the level of life. Maximum oxygen volume can be related to resting heart rate, but this has not been studied in detail regarding the relationship between maximal oxygen volume and resting heart rate in young adults. The purpose of this study was to determine the relationship between maximal oxygen volume and resting heart rate of young adults. This research uses cross sectional method. The number of research samples was 38 students from the Faculty of Medical Education, Sebelas Maret University (UNS). The dependent variable tested in this study was resting pulse rate and the independent variable was maximal oxygen volume. The research was conducted at the Physiology Laboratory of Sebelas Maret University, Surakarta. Resting heart rate was calculated by sleeping position in the supine position for 15 minutes then measured by pulse oximetry and maximal oxygen volume was calculated by Astrand-Rhyming Step Test. The results showed that the data were normally distributed so that the Pearson correlation test could be performed. The results of the correlation test showed that the value of p = 0.000 (p < 0.05) which indicated there was a significant correlation between the two variables tested and the Pearson correlation value of - 0.612 which indicated a negative correlation with a strong correlation strength. This study concludes that there is a significant correlation between maximal oxygen volume and heart rate of young adults with a negative correlation.
Unraveling the mystique of left main stenting: A bugaboo of coronary intervention
Authors: Mody Rohit
Published: September 2022

For many years, CABG has been the gold standard treatment for unprotected Left Main (LM) coronary artery lesions. Because of its high artery size and anatomical accessibility, the LM lesion makes a good PCI candidate. Subset PCI has been broadened by the development of Drug-Eluting Stent (DES) as well as fast advances in procedures, devices, and adjunct pharmacotherapies. PCI and CABG had equivalent results in patients with low or moderate coronary complexity for up to fi ve years, according to current research. Most LM bifurcation lesions may be treated successfully with a single provisional stent rather than the more complex two-stent treatment. The unusual instance of a bifurcation lesion, which requires the use of not one, but two stents from the start, is an exception to the norm. Controlling this unusual species and improving treatment outcomes need an integrated strategy involving specialized procedures, additional physiological and morphologic assessment, and hemodynamic devices.
The stress-strain state analysis of the vessel’s bottom with the external structural protection from ground
Authors: Кулеш В.А. , Фам Ч.Х.
Published: September 2022

При взаимодействии с грунтом корпуса могут получать серьезные повреждения, которые снижают их долговечность и могут потребовать вывода судов из эксплуатации. Усиления корпусов судов могут включать как внутренние конструктивные решения, так и внешнюю конструктивную защиту. Российский морской регистр судоходства в своих Правилах предусматривает возможность применения внешней конструктивной защиты корпуса. Однако, вопросы регламентации внешней конструктивной защиты, размеров ее элементов и влияния на корпус практически не рассмотрены. Существующих решений для защиты судов от грунта мало и опыт эксплуатации пока не накоплен. В данной работе выполнен анализ напряженно-деформированного состояния конструкций в упругой стадии и исследования несущей способности в области больших пластических деформаций. Показано влияние условий загрузки отсека и конструктивных элементов на уровень напряжений. Результаты работы направлены на развитие методики проектирования внешней конструктивной защиты корпусов от грунта для новых и находящихся в эксплуатации судов.

The vessel hulls can receive serious damages, which reduce their durability and may require decommissioning of vessel when the interaction with the ground happened. Reinforcement of vessel hulls can include both internal structural solutions and external structural protection. The Russian Maritime Register of Shipping provides for the possibility of applying external structural protection for vessel hull in its Rules. However, the issues of regulating the external structural protection, the size of its elements, and the effect on the case are practically not considered. There are few existing solutions for protecting vessels from ground, and the operating experience has not yet been accumulated. The stress-strain state analysis of structures in the elastic stage and studies of the bearing capacity in large plastic deformations are carried out in the papers. The influence of loading conditions of the compartment and structural elements on the stress level is shown. The work results are aimed at developing a methodology for designing external structural protection from the ground for hulls of vessels, which are new or in service.
Research of rudder system parameters influence to wave glider maneuverability
Authors: Овчинников К.Д. , Синишин А.А. , Белая А.Б. , Рыжов В.А.
Published: September 2022

В работе представлены некоторые результаты экспериментальных исследований характеристик управляемости волнового глайдера. Для исследований была построена модель волнового глайдера. На подводном модуле модели установлено четыре пары крыльев. Подводный модуль соединен с надводным модулем посредством двух кабель-тросов, расположенных в носовой и кормовой оконечностях аппарата. Модель оборудована системой радиоуправления. Было исследовано три принципиальных варианта исполнения рулевой системы: 1. Рулевая система включает в себя по одному рулю на надводном и подводном модулях (суммарно два руля управления); 2. Рулевая система включает в себя только руль на надводном модуле; 3. Рулевая система включает в себя только руль на подводном модуле. Испытания проводились в опытовом бассейне ФГБОУ ВО СПбГМТУ. Для испытаний было изготовлено три варианта рулей, отличающихся по размерам. Наилучшие показатели управляемости показал первый вариант исполнения рулевой системы (с двумя рулями управления). Диаметр установившейся циркуляции не превышал 4,5 длин корпуса. При управлении одним из рулей параметры циркуляции были в лучшем случае в два раза хуже, чем при управлении двумя рулями. При управлении одним рулем предпочтительной является схема с расположением руля на надводном модуле, так как в этом случае обеспечиваются более стабильные и хорошие показатели управляемости.

The paper presents some results of experimental studies of the wave glider maneuverability. Wave glider model uses for research. Four pairs of foils install on the underwater module of the model. The underwater module connects with the surface module by two cables located in the bow and stern ends of the wave glider. The model is equipped with a radio control system. Three principal version of the rudder system investigate: 1. The rudder system includes by one rudder each on the surface and underwater modules (summary two active rudder); 2. The rudder system includes only the active rudder on the surface module; 3. The rudder system includes only the active rudder on the underwater module. The tests carry out in the St. Petersburg State Marine University towing tank. Three differ by size rudders are made. The best maneuver performance shows by the first version of the rudder system (with two active rudders). The steady turning diameter does not exceed 4.5 hull lengths. For one rudder system the tactical diameters are at best two times worse than two rudders system. It is preferable to place the rudder on the surface module for one rudder system, because this version is more stable and good maneuver.
Determination of the additional resistance that occurs during the ship’s motions in various confined waterways
Authors: Семенова В.Ю. , Павлючук Н.А.
Published: September 2022

В статье проводится определение дополнительного сопротивления, возникающего в случае качки судна на мелководье, качки судна параллельно вертикальной стенке на мелководье и при качке в канале. Определение дополнительного сопротивления осуществляется на основании определения продольной составляющей силы волнового дрейфа по методам, разработанным в предшествующих работах. Данные методы основаны на применении метода интегральных уравнений и зеркальных отображений для случаев качки судна параллельно вертикальной стенке и в канале. Проведенное исследование в отечественной практике является новым. В статье приводятся результаты расчетов дополнительного сопротивления при качке различных типов судов на встречном регулярном волнении. Проводится исследование влияния различных факторов на их величины, а именно: изменения относительной глубины фарватера, изменения расстояния между судном и вертикальной стенкой, изменения относительной ширины канала. Показано значительное увеличение значений дополнительного сопротивления при уменьшении относительной глубины, уменьшении относительной ширины канала и расстояния между судном и стенкой. Приведено сравнение значений дополнительного сопротивления с результатами расчетов, выполненных по приближенным методам Иозена и Герритсмы. Показана невозможность применения приближенных методов при определении дополнительного сопротивления в канале.

The article defines the additional resistance that occurs in the case of ship’s motions in shallow water, ship’s motions parallel to the vertical wall in shallow water and during the motions in the channel. The additional resistance is determined based on the determination of the longitudinal component of the wave drift force according to the methods developed in previous works. These methods are based on the application of the method of integral equations and mirror images for cases of ship’s motions parallel to the vertical wall and in the channel. The study carried out in domestic practice is new. The article presents the results of calculations of additional resistance arising during the motions of various types of ships in regular heading waves. A study is being made of the influence of various factors on their values, namely: changes in the relative depth of the fairway, changes in the distance between the ship and the vertical wall, changes in the relative width of the channel. A significant increase in the values of additional resistance with a decrease in the relative depth, a decrease in the relative width of the channel and the distance between the ship and the wall is shown. The values of the additional resistance are compared with the results of calculations performed using the approximate methods of Joosen and Gerritsma. The impossibility of using approximate methods in determining the additional resistance in the channel is shown.
Development of a new technology for monitoring and elimination of emergency oil spills on the sea surface using unmanned aerial vehicles (UAVs)
Authors: Букин О.А. , Коровецкий Д.А. , Чехленок А.А. , Прощенко Д.Ю. , Юрчик В.Ф. , Кривотулов А.М. , Пяк Е.А.
Published: September 2022

В статье приводятся результаты разработки метода мониторинга и ликвидации аварийных разливов нефтепродуктов (ЛАРН) на морской поверхности с использованием БВС. В основе предлагаемого метода мониторинга используются аппаратно-программные комплексы (АПК), основанные на элементах искусственного интеллекта (ИИ) детектирования, сегментации плёнки нефтепродуктов и лазерно-индуцированной флуоресценции для определения их типов. В качестве носителей АПК разрабатывался БВС с возможностью посадки на поверхность воды и движущееся объекты, для надежной эксплуатации в условиях базирования на судах и дрейфующих платформах. Для ликвидации разливов нефтепродуктов предлагается использование распыления диспергентов с борта автономного БВС, при этом наличие элементов ИИ позволяет точно дозировать диспергент в зависимости от толщины слоя нефтепродукта. Отдельные элементы разрабатываемых средств и методов были апробированы как в ходе лабораторных испытаний, так и в ходе системного мониторинга акваторий портов, и показали высокую эффективность.

The article presents the results of the development of a method for monitoring and elimination of emergency oil spills on the sea surface by UAV. The proposed monitoring method is based on hardware and software frameworks (HSFW) including elements of artificial intelligence (AI) for detection, segmentation oil films and laser-induced fluorescence to identify their types. The UAV was developed as carriers of the HSFW with the application of landing on water and onboard of the moving vessel. It is proposed to use dispersant spraying from an autonomous UAV to eliminate oil spills. It possible to accurately dose the dispersant depending on the thickness of the oil product layer using AI elements. Single elements of the developed tools and methods were tested at the laboratory and during actual system monitoring of the port sea waters, and showed high efficiency.
Application of a neural network for the additional views synthesis in the challenge of constructing a virtual marine onboard simulator
Authors: Татаренков Д.А. , Рогозинский Г.Г. , Малыгин И.Г. , Кутлыярова А.А.
Published: September 2022

В данной статье представлена усовершенствованная технология обучения корабельного состава. Одной из особенностей технологии является использование виртуальной реальности для имитации рабочего пространства экипажа и нештатных ситуаций. Рассматриваемая технология может быть использована для создания тренажеров морских судов с использованием киберфизических систем. Практика морской безопасности в безопасной среде возможна путем сочетания методов рендеринга виртуального рабочего пространства и частичного воспроизведения органов управления кораблем в виде интерактивных интерфейсов между обучаемым и средой виртуальной реальности тренажера. Симуляция непредвиденных обстоятельств — это простой и эффективный метод обучения, когда у члена экипажа есть определенное количество свободного времени. Основная цель данной статьи — представить технологию-прототип, способную синтезировать виртуальные ракурсы в иммерсивной среде на основе реальных изображений и соответствующих карт глубины пространства, что значительно сокращает время на разработку модели корабля для создания его симулятора. Основное внимание в статье уделено методам формирования ракурса в условиях шести степеней свободы устройств виртуальной реальности. Рассмотрен метод заполнения возникающих пустот на ракурсах с применением генеративно-состязательной свёрточной нейронной сети.

This article presents an improved technology for training ship crews. One of the features of the technology is the use of virtual reality to simulate the workspace of personnel and emergency situations. The technology under consideration can be used to create simulators for sea vessels using cyber-physical systems. The practice of maritime safety in a safe environment is possible by combining the methods of rendering a virtual workspace and partial reproduction of the ship's controls in the form of interactive interfaces between the trainee and the virtual reality environment of the simulator. Contingency simulation is a simple and effective training method when a crew member has a certain amount of free time. The main goal of this article is to present a prototype technology capable of synthesizing virtual views in an immersive environment based on real images and corresponding depth maps, which significantly reduces the time for developing a ship model for creating its simulator. The main attention in the article is paid to the methods of angle formation in the conditions of six degrees of freedom of virtual reality devices. A method for filling gaps and cracks on views using a generative-adversarial convolutional neural network is considered.
A new algorithm for detecting and separating marine objects from the background in surveillance systems
Authors: Фахми Ш.С. , Королев О.А. , Бородина О.В.
Published: September 2022

Основными проблемами при построении систем искусственного зрения в области морского транспорта являются разработка и внедрение эффективных алгоритмов семантического анализа разворачивающихся на месте происшествия событий, позволяющих учитывать влияние внешних и внутренних факторов при процессе распознавания силуэта объекта исследования. При этом к внешним факторам можно отнести внешнее освещение, перемещение морского объекта, его различные признаки и свойства, а к внутренним ‑ скорость обработки сигнала изображения и вычислительную сложность системы наблюдения. Главная задача в области обнаружения и распознавания образов морских объектов состоит в выявлении и отделении на изображениях объекта интереса от фона в условиях шума и помех. В работе предложен новый метод обнаружения и отделения объектов морского транспорта от фона на основе структурированного представления пирамиды изображения, полученной в результате полигонально-рекурсивного разбиения на полигоны различной формы и размера. В статье приведены результаты моделирования предложенного метода, протестированного с использованием различных видеопотоков, и выполнена оценка скорости обнаружения объектов морского транспорта с его помощью, а также представлены результаты его работы в сравнении с уже известными подходами.

The main problems in the construction of artificial vision systems in the field of maritime transport are the development and implementation of effective algorithms for the semantic analysis of events unfolding at the scene of events, which allow taking into account the influence of external and internal factors in the process of recognizing the silhouette of an object of study. In this case, the external factors include external illumination, the movement of a marine object, its various external features and properties, and the internal factors include the speed of image signal processing and the computational complexity of the observation system. The main task in the field of detection and recognition of images of marine objects is to identify and separate the object of interest from the background in images under conditions of noise and interference. The paper proposes a new method for detecting and separating objects of maritime transport from the background based on a structured representation of the image pyramid obtained as a result of polygonal-recursive partitioning into polygons of various shapes and sizes. The article presents the results of modeling the proposed method, tested using various video streams, and the estimation of the speed of detection of objects of maritime transport with its help, as well as the results of its work in comparison with already known approaches.
Study of Local Combined Heat Impact on Permanent Joints
Authors: Абашкин Е.Е. , Ткачева А.В.
Published: September 2022

Работа посвящена построению математической модели процесса электородуговой наплавки на поверхность стальной пластины. Материал пластины принимается упруго-пластическим, деформации малыми и состоящими из упругих и пластических. Обратимые (упругие) деформации связаны с напряжениями законом Дюамеля-Неймана, необратимые (пластические) зарождаются и растут благодаря пластическому течению в рамках ассоциированного закона пластического течения. Упругие модули и предел текучести полагаются зависящими от температуры. В качестве условия пластического течения выбрано условие Мизиса, в котором учтена способность металла сопротивляться необратимой деформации (вязкость). Исследуется влияние предварительного равномерного подогрева стальной пластины на величину остаточных напряжений в ней. Приводиться зависимость остаточных напряжений, расположенных в материале пластины, от величины предварительного температурного подогрева. В результате делается вывод о том, что достаточно равномерно прогреть пластину до 200 °C – 250 °C, чтобы снизить значения максимальных напряжений до благоприятного уровня.

The work is devoted to the construction of a mathematical model of the process of electric arc surfacing on the surface of a steel plate. The plate material is assumed to be elastic-plastic, deformations are small and consist of elastic and plastic. Reversible (elastic) deformations are related to stresses by the Duhamel-Neumann law, irreversible (plastic) deformations arise and grow due to plastic flow within the framework of the associated plastic flow law. The elastic moduli and yield strength are assumed to be temperature dependent. The Miesis condition was chosen as the plastic flow condition, which takes into account the ability of the metal to resist irreversible deformation (viscosity). The influence of preliminary uniform heating of a steel plate on the value of residual stresses in it is investigated. The dependence of residual stresses located in the plate material on the value of preliminary temperature heating is given. As a result, it is concluded that it is sufficient to heat the plate evenly up to 200 °C - 250 °C in order to reduce the values of maximum stresses to a favorable level.
Attitudes and Sexual Behaviours Associated With Adolescent Online Pornography Consumption: A Critical Commentary During COVID-19
Authors: Guggisberg Marika , Holt Annie
Published: September 2022

Adolescents commonly seek out pornography, which affects their attitudes and behaviours. Furthermore, the current COVID-19 pandemic saw an unprecedented increase in pornography consumption worldwide. However, adults appear generally reluctant to engage children and youth in discussions about online pornography consumption. This article provides a critical commentary on issues related to pornography use, with a focus on attitudes, beliefs, and behaviours as part of the sexual development of adolescents. It aims to raise awareness and recommend implementing prevention and intervention education about adolescent online pornography consumption and associated harms. To this end, a narrative review of the academic literature was conducted. The paper discusses the intentional use of pornography by adolescents, potential benefits, gender differences, theoretical considerations, and effects associated with sexual attitudes, beliefs, and behaviours. It suggests that online pornography use is an important contemporary social issue that requires attention. Recommendations include the need for education about the negative social, behavioural, and legal impacts of pornography use. Openly discussing sexual consent is critically important and a way to engage adolescents in prevention efforts. Additional research is needed to better understand the nature, extent, and impact of online pornography consumption on adolescents with regard to age, gender, and specific cultural backgrounds.
Facile Characterization of Titanium Dioxide Nano- particles Prepared via Hydrothermal Method with in-situ Surface Modification
Authors: Srivastava Soamyaa , Manjhi Jayanand
Published: September 2022

Aim: The present study is focused on the synthesis and characterization of titanium dioxide nanoparticles prepared via the hydrothermal method prepared via in-situ surface modification. 

Purpose of the study: The proposed research is based on the requirement of alternate antimicrobial therapies. The global misuse and overuse of antibiotics have given rise to the antibiotic resistance crisis. The emergence of multi-drug resistant bacteria has failed the conventional treatment methods involving antibiotics. To meet the need for efficient alternate strategies, metal oxide nanoparticles such as titanium dioxide are explored since it's known for their preventing and treating infections.

Method: Titanium dioxide nanoparticles were successfully synthesized via hydrothermal and Surface modification of nanoparticles in dehydrated ethanol at room temperature. The obtained nanoparticles are characterized by utilizing Scanning Electron Microscope, Transmission Electron Microscope, Energy Dispersive X-ray Spectroscopy, Zeta Potential Analysis, Thermogravimetric analysis, and Fourier transform Infrared spectroscopy. 

Results: According to scanning electron microscopy and transmission electron microscopy, the morphological analysis of the synthesized titanium dioxide was spherical shaped and had an average size of 5-20nm and a size distribution of 14-20nm. The Energy Dispersive X-ray spectroscopy analysis depicted the percentage of elements in TiO2 as Ti (47.10%) and O2 (52.90%). The zeta potential for titanium dioxide was reported as -13.39, and the negative value indicated superior physical stability of nanoparticles in a suspension. The Fourier Transform Infrared spectroscopy peak at 1417.68 indicated the O-Ti-O bond in anatase morphology. While Thermogravimetric analysis showed three main stages of mass loss, there was no mass loss after 503°C, which started oxide formation.

Conclusion: It was concluded from the present study that the synthesis of titanium dioxide is an economical process and yields excellent nanoparticles via the hydrothermal method. Characterization of the nanomaterial allowed us to determine the thermal stability, morphology, and purity of titanium dioxide nanoparticles.
Review Article A Comprehensive Review: Development on Phyto-pharmacological Studies of Pedalium murex Linn
Authors: Verma Anju , Srivastava Rajani , Sonar Pankaj Kumar , Yadav Ramprakash
Published: September 2022

In the present review, the research progress of the plant Pedalium murex Linn. has been rationalized in the diverse aspects of studies like its cytomorphology, traditional uses, pharmacognostic studies, and phytochemical studies, biological studies, etc. In the modern era, the consumption of herbal medicines has amplified greatly due to their effective results. Therefore, it is essential to develop herbal medicine like more effective drugs with fewer side effects and determine their efficacy. Pedalium murex is one of the traditional medicinal plants that belong to the family, Pedaliaceae, a magical source of many bioactive compounds like terpenoids, lipids, phenolic acids, steroids, flavonoids, tannins, saponins, vitamins, carbohydrates, reducing sugars, proteins, etc. with a variety of biological activities viz. antioxidant, antihyperlipidemic, neuroprotective, nephroprotective, anti-nephrolithiasis, aphrodisiac, anti-inflammatory, antipyretic, antimicrobial antiproliferative, insecticidal, hepatoprotective, antidiabetic, etc. It is widely distributed in tropical Africa, Sri Lanka, India, Pakistan, and Mexico. In this review, all the scientific findings of Pedalium murex are explored from Google Scholar, Google web, Science Direct, Pubmed, Medicinal and Aromatic Plants Abstracts (MAPA), etc. This review will be very fruitful for those scientists who are doing or planning to do research work on this plant.
Perilaku Konsumtif Sebagai Sebuah Gaya Hidup: Studi Komunitas Lari LibuRUN di Kota Pekanbaru
Authors: Hafizh Abdul , Asriwandari Hesti , Hidir Achmad
Published: September 2022

The LibuRUN group is a running community that is highly famous in Riau, notably in the city of Pekanbaru. The objective of founding the LibuRUN running community is to push for the residents of Pekanbaru city to live a healthy life. This research intends to examine the consumptive and hedonic behavior of members of the LibuRUN running community. The research approach utilized in this study is descriptive qualitative, the source of the data comprises of primary and secondary data. The findings indicated that consumer behavior among LibuRUN members was impacted by their surroundings and their personal wishes, and LibuRUN hedonic lifestyle was conduct that was regarded normal and hedonic behavior was also typical. Behavior arises because of behaviors that exist among the community and people themselves.
Efektivitas Greenpeace Sebagai INGO Lingkungan Dalam Menangani Deforestasi Hutan Amazon di Brazil Tahun 2018-2021
Authors: Firdaus Muhammad Alif , Prinanda Devita
Published: September 2022

Deforestation of the Amazon that has occurred for decades continues to increase every year and presents a real threat. Greenpeace as an environmental INGO also participates in dealing with the deforestation case by making various efforts. The purpose of this study is to explain the effectiveness of Greenpeace in dealing with cases of deforestation in the Amazon Forest in Brazil in 2018-2021. In this study, the author uses the theory of INGO effectiveness and the concept of environmentalism. The analysis in this study uses a qualitative descriptive method with document research data collection techniques. The results of this study indicate that the efforts that have been made by Greenpeace have an impact on the condition of deforestation in the Amazon forest. The effort to monitor the Amazon forest with indigenous peoples is part of the All Eyes on the Amazon project which involves several parties and various advanced technologies. This supervision narrows the space for illegal activities so that by 2020 there will be a reduction in the rate of deforestation by 62 percent on the customary lands of the Karipuna people. However, this decrease has only a small impact considering that the customary land area is only 3.83 percent of the total area of ​​the Amazon forest and there will be an increase in deforestation again in 2021. Based on this, it can be concluded that Greenpeace has not been effective in dealing with the deforestation of the Amazon Forest.
Efecto de una intervención con tecnología sobre las percepciones de su uso y el aprendizaje del álgebra temprana
Authors: Ibarra Cruz Stephanie , Rodríguez Gómez Jaime
Published: September 2022

El estudio del aprendizaje del álgebra temprana y el uso de la tecnolo- gía en la educación están cobrando más relevancia en la actualidad. Por eso, el propósito de esta investigación consistió en medir el efecto de una intervención con tecnología sobre las percepciones de su uso y el apren- dizaje de álgebra temprana en estudiantes de licenciatura y de educación primaria. El diseño fue cuantitativo, exploratorio, explicativo de corte pre- experimental con un solo grupo. La muestra se conformó por estudiantes de la Licenciatura en Educación Primaria y niños de educación prima- ria. Para medir las variables de estudio, se utilizaron dos instrumentos: el Mathematics with Technology Perceptions Survey y el Cuestionario para Evaluar Conocimientos Didáctico-matemáticos sobre Razonamiento Alge- braico Elemental. Como resultados generales, se observó una diferencia significativa en las percepciones del uso de la tecnología de estudiantes de licenciatura y en su nivel de conocimiento didáctico del álgebra temprana, al igual que en el nivel de conocimiento del álgebra temprana de los estu- diantes de educación primaria.
Percepciones de las tutorías de escritura en un centro novel
Authors: Granados Ayala Génesis Caridad
Published: September 2022

Esta investigación buscó conocer las percepciones, estrategias y retos de las tutorías implementadas en un centro de escritura de reciente creación en una universidad privada mexicana. El enfoque fue cualitativo, con diseño de estudio de caso y se realizó una triangulación de los instrumentos utilizados (observación, entrevistas, documentos, literatura, investigador). Según los resultados, se perciben mejorías en la escritura y un ambiente de confianza en las tutorías. Las estrategias utilizadas incluyen la lectura en voz alta y las preguntas, y los principales retos son la falta de tiempo, la brecha generacional y la difusión.
Structural Change and Employee Satisfaction of Privately-Owned Hotels in Nigeria
Authors: Precious Roberts , Ibrahim Umar Abbas , Maitala Faiza , Daniel Cross Ogohi
Published: September 2022

The hospitality industry in Nigeria is going through a process of transition due to the pandemic effect of the coronavirus (Covid-19). A new policy has been given by the government as a result of coronavirus, which required certain structural changes that demand employees to be more proactive and flexible to maintain efficiency in operations. Thus, hotel organizations in Nigeria must be flexible to quickly react and adapt to internal and external changes influencing their operation. Due to the close interaction between employees and customers, there can be direct effects of the change process on customers' patronage when certain structural changes occur. Therefore, this study examines structural change and its influence on employee satisfaction in selected privately owned hotels in Abuja, Nigeria. A closed-ended questionnaire was administered to a sample of 397 employees online. A 5-point Likert scale was designed to capture and measure employees’ perceptions on variables relating to structural change and employee satisfaction. Regression analysis was used to analyze the data and test the hypothesis. Findings indicated that structural change significantly and positively influences employee satisfaction. The study concludes that effective and efficient management of every change is very crucial for organizational success and for enhanced positive employee attitude and behavior that translate into improved operational efficiency.
Ventilatoren stellen sich der Herausforderung
Authors: Rössler Marcel , Stern Patrick
Published: September 2022

Der Klimaschutz ist die globale Herausforderung unserer Zeit, der es mit Klimaschutzvereinbarungen, Gesetzen und Vorschriften zur Dekarbonisierung zu begegnen gilt. Dazu gehört auch die sogenannte F-Gas-Verordnung, die seit dem 1. Januar 2015 gilt. Bis zum Jahr 2030 sollen die Emissionen fluorierter Treibhausgase (F-Gase) in der EU stufenweise um 70 Millionen Tonnen auf 35 Millionen Tonnen CO2-Äquivalent gesenkt werden. Der Umstieg auf natürliche Kältemittel mit einem geringen Global Warming Potential (GWP) ist daher zwingend notwendig. Allerdings sind diese oft brennbar. Daraus folgt, alle beispielsweise in Wärmepumpen verbauten Komponenten, müssen die Normen für brennbare Kältemittel erfüllen. Das trifft auch auf die eingesetzten Ventilatoren zu.
Trinkwassergüte trotz Nutzungsschwankung erhalten
Authors: Wurm Guido
Published: September 2022

Ob Turnhallen, Schwimmbäder, Fitness-Studios, Eisstadien, Vereinsheime oder andere Sportanlagen – sie alle unterliegen saisonalen Nutzungsschwankungen. Das kann nicht nur negative Auswirkungen auf die Fitness der Sportler haben, sondern auch auf die Qualität des Trinkwassers. Die Gefahr: Wenn die Frequentierung dem bestimmungsgemäßen Betrieb nicht entspricht, kann sich in den Rohrleitungen eine gefährliche Konzentration an Legionellen bilden, die die Gesundheit der Nutzenden erheblich gefährdet. Abhilfe schaffen elektronische Sanitärarmaturen und intelligente Wassermanagement-Systeme.
CONSUMO DE SUSTANCIAS PSICOACTIVAS Y COVID-19. LAS DESIGUALDADES EN LA PANDEMIA
Authors: Ávila Quijas Aquiles Omar , Gasca Moreno Claudia Teresa , Da Silva Rodrigues Charles Ysaac , Carvahlo de Figuereido Paula Alexandra
Published: September 2022

Este trabajo analiza las condiciones de exclusión y desigualdades en las que viven consumidores de sustancias psicoactivas, para tener un acercamiento a sus condiciones de vida durante la pandemia de COVID-19, a partir de entrevistas a profundidad y de observación directa en áreas periurbanas de León, Guanajuato, que se corresponden con los lugares de origen de los entrevistados. Lo que nos permite establecer que sus condiciones estructurales fueron más importantes que la de consumidores en su exposición al contagio. Y abre preguntas para una posible agenda de investigación sobre las desigualdades y el síndrome post-COVID.
Extinguishing efficiency of mixtures of pentafluorobutane with short-lived gas extinguishing agents
Authors: Копылов Павел Сергеевич
Published: September 2022

Показана необходимость снижения эмиссии в атмосферу газовых огнетушащих веществ (ГОТВ), обладающих большим потенциалом глобального потепления. Описан возможный способ сокращения объема применения парниковых газов путем создания смесевых газовых огнетушащих веществ, один компонент которых быстрее распадается в пламени, ускоряя деструкцию второго, более прочного химического соединения, тем самым улучшая ингибирующий эффект. Приведены экспериментальные данные, подтверждающие результативность предложенного способа повышения огнетушащей эффективности смесевых ГОТВ.

The article describes a possible way to increase the efficiency of gas extinguishing agents by creating mixed compositions. It consists of six parts including an introduction, a section dedicated to the acceleration of destruction, a description of experimental equipment, results and discussion, conclusions and references. The paper analyzes the situation in the field of gas fire extinguishing in the Russian Federation in connection with the ratification of the Kigali Amendment to the Montreal Protocol. Possible solutions to reduce the emission of greenhouse extinguishing gases are given. There is described a method for accelerating the destruction of gas extinguishing agents in a flame by creating a mixed composition, one component of which decays faster in the flame, accelerating the decay of another more chemically durable substance, thereby increasing the inhibitory effect. A series of experiments was carried out on an experimental installation designed to determine the minimum extinguishing concentration to identify the positive effect of the decay of pentafluorobutane on the destruction of perfluoroethyl isopropyl ketone and perfluoroisohexene compounds. The positive effect of accelerating the decay of perfluoroethyl isopropyl ketone due to additional heat release during the transformation of СFH into a flame on its extinguishing efficiency has been proved. When pentafluorobutane is added to perfluoro-2-methylpentene-2 or perfluoro-1,2-dimethylcyclobutane their extinguishing efficiency does not improve: the possible positive effect of accelerating the decay of compounds with the general formula CF in the flame in the presence of an additive СFH is offset by heat release during its oxidation.
Preventive measures for citizens to rescue from high-rise buildings in case of fire
Authors: Логинов Владимир Иванович , Вищекин Максим Вадимович , Дымов Сергей Михайлович , Русанов Дмитрий Юрьевич
Published: September 2022

В статье рассмотрен вопрос об упреждающих мероприятиях, доступных гражданам при подготовке к спасанию из высотных зданий при пожаре. Приведены вероятные сценарии развития пожара и оптимальный порядок действий. Материал имеет целью помочь рядовому обывателю наиболее рационально использовать имеющееся у человека время с начала возгорания до наступления первого из опасных факторов пожара. Предлагаемые решения не обременительны ни с организационной, ни с финансовой стороны и могут быть приняты за базовый уровень подготовки к индивидуальному спасанию из высотных зданий при различных чрезвычайных ситуациях.

The article considers the issue of proactive measures for citizens in preliminary preparation for rescue from high-rise buildings during a fire. Recommended means and probable scenarios of fire development with the optimal scheme of actions are given. The fire is always a sudden event, so it is necessary to prepare fire alarm and rescue means preliminarily and to elaborate the order of their application depending on the situation in the case of fire inside an apartment. There are distinguished from the list of normatively established primary and secondary fire hazrds two new hazards not having numerical expression namely “shortage of time” and “unpredictability”. These factors cause most of the accidents in the residential sector which is clearly seen in the materials of the statistical compendium. The material is intended to help the ordinary human to use the time available to a person from the beginning of a fire to the onset of the first of fire hazards in the most rational way. The proposed solutions are not burdensome either in organizational or financial aspects and can be taken as a basic level of preparation for individual rescue from high-rise buildings in various emergencies.
State of the issue of pulse fire extinguishing
Authors: Казаков Алексей Васильевич , Емельянов Роман Александрович , Бухтояров Дмитрий Викторович , Полтавец Денис Владимирович
Published: September 2022

Проведен анализ имеющихся разработок средств пожаротушения, основанных на импульсном способе подачи огнетушащего вещества (ОТВ). Сделаны предположения о механизме прекращения горения при подаче ОТВ в очаг пожара импульсным способом. Отмечена перспективность применения импульсного способа подачи ОТВ в различные очаги возгорания. Принцип построения импульсного пожаротушения позволяет легко составлять конфигурацию под различные требования, а также дает возможность наращивания существующих систем противопожарной защиты.

The problem of eliminating fires spreading over large areas in closed and semi-closed spaces (warehouses, cable channels, high-rise buildings, etc.) is important and difficult to solve. Firstly, it is difficult to get close to such fire, therefore it is necessary either to solve the problem of supplying extinguishing agents from a long distance which complicates the fire extinguishing process or to install automatic fire extinguishing systems in close proximity to the source that is very difficult due to potentially destruction by possible explosions. Secondly, in order to suppress a developed fire from a long distance it is necessary to supply extinguishing agent continuously for a long time or to supply a large amount of extinguishing powder directly to the flame source at the same time. It is a very difficult task since it is necessary to get into a small diameter relative to the distance to it. The aforesaid suggests that it is necessary to investigate various ways of supplying a fire extinguishing agent. The paper provides an overview of the development of fire extinguishing means based on a pulse method of supplying the extinguishing agent to the ignition source. Currently special attention is paid both to the development of such technologies and to the creation of such fire extinguishing tools that would allow suppressing fire without coming into direct contact with it. Direct contact with fire means that a person exposes to a number of fire hazards: high temperatures, lack of air and visibility, risks associated with the unpredictability of the situation. In some cases, successful suppression of the source of combustion can be ensured by means and methods of extinguishing that allow remotely supplying of fire extinguishers directly to the combustion zone in a short period of time (1-2 s) in the amount necessary to suppress the fire. The pulse supply method developed and implemented in various kinds of devices meets this requirement in terms of its potential capabilities.
LONG-TERM PROSPECT OF OIL AND GAS PRICES
Authors: Nikica Grubišić
Published: September 2022

Ever since the market was formed, people have been interested in the future prices fluctuations. The one whose cognition was closer to the realization had leverage in comparison to other participants of the market competition. When it comes to oil, it becomes all the more interesting. Oil is a loyal companion of the cyclic development of capitalism, and earnings from changes in oil prices have become greater than the earnings from the production itself. Therefore, this paper endeavours to consider the long-term oil and gas prices prospect through capital market analysis rather than through the usual complex econometric models.
POWER PLANT MODEL WITH ENVIRONMENTAL CONDITIONS INCLUDED IN THE ELECTRIC POWER SYSTEM RELIABILITY AND AVAILABILITY MODEL
Authors: Mićo Klepo  , Vladimir Mikuličić  , Zdenko Šimić
Published: September 2022

This work presents the results of the theoretical-methodological elaboration of the model by virtue of which the generating units are included in the models for calculation of reliability and availability of the electric power system in the operative plans of its operation. The operation, that is, the operative features of these generating units, and therewith also their reliability and availability, are influenced by the state of the environment, mostly by adverse weather conditions. The generating units model with environmental conditions included also introduces into the calculation of indicators of the electric power system reliability and availability, along with the time dependence, the dependence on the environmental conditions which the unit is exposed to during duration of the period of such conditions.
Purpura de henoch scholein relacionada con uso de rivaroxaban un evento adverso infrecuente y de mecanismos aun desconocidos, descripcion de un caso
Authors: Theran león Juan Sebastián , Dulcey Sarmiento Luis Andrés , Rolanlly Robles Jhurgen , Torres Liñan Juan Ariel , Aguas Cantillo Melissa Julieth
Published: September 2022

Introducción: Rivaroxabán es un novedoso anticoagulante oral de acción directa (DOAC) que se utiliza tanto para el tratamiento como para la prevención de enfermedades tromboembólicas. Debido al mecanismo de acción; el efecto secundario más común se puede observar con hemorragia. Aquí informamos que una paciente con trombosis venosa profunda de los miembros inferiores quien presentó una Purpura de Henoch Scholein, mientras tomaba rivaroxabán.

Caso clínico: Paciente femenina de la VII decada de la vida, se le administró rivaroxabán, luego de intolerancia a warfarina. En el día 4 de la primera semana de tratamiento, el paciente ingresó al servicio de urgencias con sangrado de la mucosa oral y manchas petequiales. El paciente fue diagnosticado de Purpura de Henoch Scholein debido al uso de rivaroxabán, luego de descartarse la mayoría de las posibilidades. Después de interrumpir el tratamiento con rivaroxabán, los síntomas hemorrágicos del paciente remitieron, los síntomas se resolvieron por completo y desaparecieron las petequias. La paciente se encuentra controlada tras la omision del tratamiento y resolvio el cuadro clinico totalmente.

Conclusión: Hasta el momento son muy escasos los reportes de este tipo al tomar anticoagulantes orales directos. Además de los conocidos efectos secundarios del tratamiento con rivaroxabán, se debe tener en cuenta que también se puede desarrollar trombocitopenia. La escala de probabilidad de reacción adversa a medicamentos de Naranjo calculada fue de 7 puntos. (causa probable de la Purpura de la paciente).