bluuebunny/crossref_metadata_2025 huggingface dataset:
Los métodos problémicos en la Disciplina Enfermería en Salud Mental
Authors: Pedroso Monterrey Marleni , Rodríguez Delgado Maylin , Olivera Manzano Lázaro Urbano
Published: November 2021

Se realizó una clase metodológica instructiva sobre los métodos problémicos en el proceso de enseñanza-aprendizaje de la asignatura Enfermería en Salud Mental desde la Conferencia a estudiantes de Cuarto año de la carrera de Enfermería. Se logra demostrar sobre la base de contenidos específicos de las ciencias de la profesión, “cómo” puede ser trasmitido a los alumnos de la mejor forma con su justificación pertinente. El espacio de debate ayuda al colectivo de profesores a generalizar en la forma del “cómo” y “dónde” aplicar los métodos problémicos en el proceso enseñanza- aprendizaje, para dar respuesta al problema conceptual metodológico planteado.
Ngola Mbandi e a possibilidade de um quadro depressivo em Angola antiga
Authors: da Silva Sílvio Geraldo Ferreira , Ferreira Ana Clara Prado
Published: November 2021

Ngola Mbandi foi um dos soberanos do Reino do Ndongo durante o período inicial da dominação portuguesa em Angola. O monarca teve um papel importante para a manutenção da soberania do seu reino, embora não tenha protagonizado um governo longevo. No contexto sócio-histórico em que foi regente, Mbandi acumulou algumas derrotas, fato que permitiu, em certa medida, o avanço das tropas invasoras. O presente trabalho busca, através de uma perspectiva comparada entre literatura e história, analisar a possibilidade de Ngola Mbandi ter sido acometido por uma doença que ainda não era conhecida nos século XVII; a depressão. Tendo em vista o governo de perdas, este pode ter sido um gatilho para a desestabilização psicológica de Mbandi. A história e a literatura apresentam muitas versões sobre a causa da morte do soberano, como envenenamento, suicídio e tristeza. Sabe-se que a versão mais difundida é a morte por envenenamento, porém, neste trabalho, manteremos o foco na possibilidade de morte em decorrência de um quadro depressivo, uma vez que a literatura e a história também dão margem para esta versão. A possibilidade de Mbandi ter cometido suicídio também pode ser compreendida como um traço depressivo, assim como o possível isolamento dele na Ilha Kindonga após repetidas derrotas nas batalhas contra os portugueses. Esta investigação justifica-se por buscar compreender o governo e a morte de Ngola Mbandi e, com isso, objetiva contribuir para a disseminação do conhecimento sobre Angola Antiga através das possibilidades proporcionadas pela literatura e pela história.
Deep feature learning for FoG episodes prediction In patients with PD
Authors:   Future University in Egypt, Elziaat Hadeer , El-Bendary Nashwa ,   Arab Academy for Science, Technology and Maritime Transport (AASTMT), Egypt, Mowad Ramdan ,   Future University in Egypt
Published: November 2021

A common symptom of Parkinson's Disease is Freezing of Gait (FoG) that causes an interrupt of the forward progression of the patient’s feet while walking. Therefore, Freezing of Gait episodes is always engaged to the patient's falls. This paper proposes a model for Freezing of Gait episodes detection and prediction in patients with Parkinson's disease. Predicting Freezing of Gait in this paper considers as a multi-class classification problem with 3 classes namely, FoG, pre-FoG, and walking episodes. In this paper, the extracted feature scheme applied for the detection and the prediction of FoG is Convolutional Neural Network (CNN) spectrogram time-frequency features. The dataset is collected from three tri-axial accelerometer sensors for PD patients with FoG. The performance of the suggested approach has been distinguished by different machine learning classifiers and accelerometer axes.
A CONFIGURABLE MINING APPROACH FOR LEARNING SERVICES CUSTOMIZATION
Authors:   Business Information Systems, Faculty of Commerce and Business Administration, Helwan University, Egypt, Mostafa Aya M. , Helmy Yehia M. ,   Business Information Systems, Faculty of Commerce and Business Administration, Helwan University, Egypt, Idrees Amira M. ,   Faculty of Computers and Information Technology, Future University in Egypt, Egypt
Published: November 2021

There is no doubt that this age is the age of data and technology. Moreover, there is tremendous development in all fields. The personalized material is a good approach in the different fields. It provides a fit material that matches the styles of readers. It supports readers in various reading domains. This research paper aims to support students in the educational system. Additionally, the research paper designs to increase education values for students. Furthermore, the research paper builds the smart appropriate materials through Egyptian Knowledge Banking (EKB) based on the learner question. The Egyptian Knowledge Bank (EKB) is a rich platform for data. The research paper is implemented in the faculty of Commerce and Business Administration, Business Information System program (BIS) at Helwan University, Egypt.
A DEEP LEARNING APPROACH FOR FORECASTING GLOBAL COMMODITIES PRICES
Authors:   Arab Academy for Science & Technology, Egypt, Elberawi Ahmed Saied , Belal Mohamed ,   Helwan University, Egypt
Published: November 2021

Forecasting future values of time-series data is a critical task in many disciplines including financial planning and decision-making. Researchers and practitioners in statistics apply traditional statistical methods (such as ARMA, ARIMA, ES, and GARCH) for a long time with varying. accuracies. Deep learning provides more sophisticated and non-linear approximation that supersede traditional statistical methods in most cases. Deep learning methods require minimal features engineering compared to other methods; it adopts an end-to-end learning methodology. In addition, it can handle a huge amount of data and variables. Financial time series forecasting poses a challenge due to its high volatility and non-stationarity nature. This work presents a hybrid deep learning model based on recurrent neural network and Autoencoders techniques to forecast commodity materials' global prices. Results showbetter accuracy compared to traditional regression methods for short-term forecast horizons (1,2,3 and 7days).
An algorithm for evaluating the linear redundancy and the factor of inertial groups of S-box
Authors: Nguyen Nghi Van
Published: November 2021

Abstract— This paper presents an algorithm for evaluating the linear redundancy and the factor of inertial groups with small computational complexity. Specifically, the article introduces the concept of the factor of inertial groups, the relationship between the factor of inertial groups and the linear redundancy of S-box. Thus, it is recommended to use S-boxes that do not possess linear redundancy and have the factor of inertial groups equal to 1 to have better cryptographic properties, and also provide an algorithm for searching such large size S-boxes.Tóm tắt— Bài viết này đưa ra thuật toán đánh giá độ dư thừa tuyến tính và hệ số quán tính của S-hộp với độ phức tạp tính toán nhỏ. Khái niệm hệ số quán tính, mối liên quan giữa hệ số nhóm quán tính và độ dư thừa tuyến tính của S-hộp được phân tích cụ thể. Qua đó, đưa ra khuyến nghị nên sử dụng các S-hộp không sở hữu độ dư thừa tuyến tính và có hệ số quán tính bằng 1 để có tính chất mật mã tốt hơn, đồng thời cũng đưa ra thuật toán để tìm các S-hộp kích thước lớn như vậy.
Unzufriedenheit mit der Kunst
Authors:   ", Angelov Valentin ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: November 2021

Es handelt sich nicht um einen Mißerfolg bei Mimesis und die entsprechende kritische Bemerkungen, sondern um eine negative Einstellung zu der autonomen, musealen Kunst. Bei dem Nonkonventionalismus erscheinen neue Auffassungen für die Rolle der Kunst – nicht im Museum ein Objekt des ästhetischen Genußes zu sein, im Gegenteil eine revolutionäre Kraft in der Lebensveränderung der menschlichen Umwelt zu werden. Kunst für das Leben! Was machen die russischen Konstruktivisten, die Hollender von der Gruppe “De Stijl”? – Gemälde, die uns nicht ästhetische Lust geben, weil sie als Projekte für eine totale Umweltstrukturierung und Rekonstrukturierung geschaffen sind. “Leben ist Kunst – Kunst ist Leben!“ (W. Vostell). Das ist die Devise, die die heutigen Avantgardisten begeistert und entsprechend neue schöpferische Formen aufsuchen und verteidigen.
The Experimental Project “Worn Dresses”. Exposition of an Artistic Conception
Authors:   ", Tsvetkova Galina ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: November 2021

“Worn Dresses” is realized as a creative experiment in 2017 at “Radikalno” hall of department “Sculpture” at The University of Veliko Tarnovo. Technically speaking the project is a continuation and development of an author’s method, which has been set and elaborated since 2007 till now. Inspired by elements of collage art, this technique offers unlimited abilities for an interpretation of shaping and spatial models. The conception “Worn Dresses” is a combination of two basic creational ideas. The first one is a synthesis of the subject matter content and the architectonics of visual objects viewed by a precise combination of practical and real social dimensions. The second one aims to create a united literary image of the exhibition, which itself without any negative context, translates the item “absence” as a condition of the dualistic character of Nature. In ability to realize the sensible insight which generates “absence” and “presence” as aims to affirm not just the physical essence of a human, but the humanity in the artistic fact. The experiment is an original shaping solution, an aspect of spatial relationships and author’s intrusion in between the intersection of a piece of art and audience.
Icons of the Painter Alexander Popgeorgiev in the “St. Demetrius” Church in the Village of Zimnitsa, Yambol Region
Authors:   ", Prashkova Miglena ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: November 2021

The icons of the painter Alexander Popgeorgiev in the “St. Demetrius” church in the village of Zimnitsa, Yambol region, dates from 1857–1858. The “St. George on horse” despotic icon of the iconostasis is restored in 2019. During the restoration the painting was freed from late picturesque layer. This is a reason to analyze the colorful, style and technical characteristics of church icons. Part of the creative work of the Yambol icon-painter, who holds a worthy place among the masters of Bulgarian Revival painting, is presented.
Morphology of the Contemporary Sacral Space (Skyspace Lech, Writ in Water)
Authors:   BAS, Bulgaria, Sarbova Adriana
Published: November 2021

The social and political changes in the world dictate new approach and interpretation of the essence of architecture and its unbreakable unity with nature. In my dissertation “Ancient cult buildings and their contemporary architectural analogues” I discuss the necessity of a reconsideration of the term “contemporary sacral space” and propose a definition that is in correspondence with the changed social environment. In my research I have noticed and described a pattern in the design of the sacral spaces that applies architectural models from the ancient cult buildings and creates atmosphere that inspires the connection with Nature. My arguments are based on architectural examples built in the last two decades, as well as on the recent works of scholars, that make obvious the inevitability of considering the contemporary sacral space outside the dogmas of the religions, but rather in conformity with the modern man. This article is a part of series of studies, entitled “Morphology of the contemporary sacral space”. The purpose of the research is to organize and analyze a group of contemporary spaces, selected by their objective characteristics (situation; purpose; composition; materials; facades; interior) to prove the above mentioned tendency in the contemporary sacral architecture, and to define a wider frame for the term “contemporary sacral space”. In this article I analyze the architecture of two buildings – SKYSPACE Lech and WRIT IN WATER, to recognize them as contemporary sacral spaces.
The Project Academy of Applied Sciences and its Two Initiators
Authors:   ", Georgieva Miroslava ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: November 2021

National crafts are symbols of diligence and promotors of aesthetic ideals in Bulgaria through the centuries. For this reason they have to be known, studied and preserved in their original mode. Initiative to found a high school for studying crafts with technics and technologies from modern applied arts was long process in Veliko Tdrnovo. Initiators of this idea are two artists – Peter Kantchev and Nediyalko Karaneshev. They organized preparatory courses for future students in the Academy some years before its foundation. In 1926 the foundation stone was officially laid. There was discussion about programmes and crafts that would be studied in temporary and permanent courses. But for the lack of money the project finished at this stage.
Durability and Permanence in the Quality – Contemporary Parameters, Defining the Papers and Cardboards for Printing Art
Authors:   ", Ivanova-Alexandrova Denitsa ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: November 2021

The long lifecycle, also known as durability and the permanence / invariability in the quality of papers and cardbords for graphic art, are today the basic requirements, imposed by printed art in terms of high quality parameters. These two factors are a manifestation, depending on different internal chemical-composition properties of the paper consistency and external influences of the ambience. Longevity and permanence are perceived as a function of aging and are actually observed at a later point in time. It is important to clarify that they are terms with different contents where „durability” is perceived as the ability of the paper or cardboard to resist the impact of wear during use, and the „permanence” is the possibility of product to remain chemically and physically stable for a long period of time.
The Fulfilled Anti-utopias of the XX Century
Authors:   University of Warsaw, Poland, Spasova Pravda
Published: November 2021

This paper is about the insecurity of the individual in a world, meant to be most secure by definition and intention. The suggestion that prognosis, enclosed in black utopian literature are more likely to be fulfilled, than socio-philosophical predictions from substantial theories like Marxism, could be read out from this paper. It is about the futile effort of post-socialist Bulgarian society to exit the labyrinth of anti-utopia. Thus, it is about intellectual desperation.
The Monster from the Hotel Room
Authors:   Sout-West University of Blagoevgrad, Bulgaria, Anastasova Maria
Published: November 2021

Horror fiction typically aims at generating the emotional effect of fear, terror and suspense, which is usually achieved by the introduction of scary elements such as vampires, witches, and ghosts. Although monsters can be considered an essential part of the genre, the ways of creating them might be different. The object of the article is the monster from the hotel room in Stephen King’s The Shining and its cinematic adaptation directed by Stanley Kubrick. The paper aims at analyzing the various narrative and media-specific means of introducing the ghost in both works of art and exploring some possible interpretations.
Code Painting in the Digital Age
Authors:   ", Ilev Stoyan ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: November 2021

Our encompassing digital world imposes a new digital aesthetics. Applied visual software, printers, etc. offer a new imagery of plastic arts. Digital possibilities lead to the delusion that they can dethrone the classical arts. Painting has brought its adaptability to the new media over time, but the modern digital era puts it under a new set of problems. Extremely material (painting) against non-material (virtual), war in territory.
To Watch, to Love, to Be an Animal – The Golden Linden Film Festival, 2018
Authors:   ", Hristakiev Krasimir ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: November 2021

Nearly 50 new titles were presented at the Golden Linden International Film Festival in Stara Zagora in the first days of June 2018, and some of which deserve special attention: Andrzej Wajda’s „Afterimage“ (2016), „Thorn“ (2017) by Gabriel Tzafka and Nicolette Krebitz‘s „Wild“ (2016). We refer to them in the present text in a descriptive-analytical way, highlighting their main aesthetic accents.
Reference Significance of Foreign Offshore Oil and Gas Cooperation Model Experience to China
Authors: Zhang Ying , Guo Jiaofeng , Yu Menghong
Published: November 2021

For a long time, the oil exploration and development business of Chinese oil enterprises is mostly limited to China, and the international cooperation of transnational oil and gas started late. Therefore, compared with foreign companies, there is still a big gap in understanding the business model of overseas oil and gas industry. Therefore, it is necessary to summarize and learn from the past business model. This paper summarizes the main modes of offshore oil and gas cooperation among global oil companies, compares various modes, and studies the cooperative development mode of offshore oil and gas resources. The research shows that under the lease contract mode, foreign oil companies have greater management rights, but with the continuous development of international oil industry, the government of resource countries has gradually increased its control over foreign oil companies.
Research on Guilin Smart Cultural Tourism Service Scenario based on Digital Twin Technology
Authors: Yang Jingran , Peng Yuyuan , Liang Hongjin
Published: November 2021

In recent years, with the emergence of new technologies such as cloud computing, the Internet of Things, big data, and artificial intelligence, the country has deeply promoted the application of science and technology in the cultural and tourism industries, targeting smart cultural tourism, digital cultural industries, online and offline integrated development, and scenic spots. Multiple service scenarios such as smart supervision put forward new requirements. The purpose is to use digital twin technology to build a digital, online, and intelligent cultural tourism industry chain, optimize Guilin tourism service processes, improve service efficiency, and make full use of the city's smart cultural tourism development to promote the improvement of the city's image and promote Guilin The new form of global tourism forms the city's endogenous development capabilities, and provides theoretical and practical guidance for the construction of smart cultural tourism in other cities. By analyzing the current status of smart cultural tourism and application requirements, it discusses the design and construction of Guilin smart cultural tourism service scenarios based on digital twin technology, and how to strengthen the realization of future-oriented smart interactive scenarios in the innovation of service models.
The Eﬀect of the New Rural Social Pension Insurance Program on the Choice of Medical Institutions for Rural Elderly
Authors: Zeng Keya
Published: November 2021

To explore the eﬀect of the New Rural Social Pension Insurance (NRSPI) program on the choice of medical institutions for rural elderly is not only an effective entry point to test the influence of the NRSPI program, but also plays an significant role in maintaining people's health, improving our nation’s retirement pension system and the construction of the new countryside. To this end, based on the five periods of Chinese Family Panel Studies (CFPS) data from 2010 to 2018, this paper used Logit model and DID model to empirically investigate the impact of the NRSPI program on the choice of medical institutions for rural elderly. The empirical results show that: first, the NRSPI program can significantly promote the rural elderly to choose higher level of medical institutions for medical treatment. Specifically, receiving the NRSPI pension will increase the probability of rural elderly choosing hospitals at the county level and above by 8.6%, the hospitals at the township level by 2.5%, and will decrease the likelihood of choosing hospitals at the village level by 5.5%.Second, the effects of the NRSPI program are heterogeneous. Compared with the rural elderly in high income families, the program has a greater impact on the choice of medical institutions for those in low income families. Compared with the rural elderly in the eastern region, the program has a greater impact on the selection of county level hospitals and above by those in the central and western regions, but has less impact on the selection of village level hospitals.
Financing Constraints, Risk of Stock Price Crash and Impact of New Crown Pneumonia
Authors: Xu Jianing , Ouyang Rongxing , Chen Nanjie , Wan Xinyan
Published: November 2021

Taking Shanghai and Shenzhen A stock listed companies as a sample, this paper uses the event research method to test the effect of financing constraints and stock price crash risk on the cumulative excess return (CAR) of enterprises under the impact of the epidemic situation. The results show that the risk of stock price collapse plays a negative role in the transmission channel of the impact of the new crown epidemic on the enterprise's cumulative excess return, and the financing constraint intensifies the negative effect. Further, the heterogeneity analysis based on firm size and ownership found that in SMEs and non-state-owned enterprises, the effect of increased financing constraints is more significant Is significant. Finally, this paper puts forward some suggestions from the perspective of relevant regulatory departments and enterprises themselves.
Research on Prediction of Different Categories of Video based on YOUTUBE Using Text Mining and Sentiment Analysis
Authors: Gan Lin
Published: November 2021

With the development of online commentary research, scholars have tried to tap into the deeper value of online commentary from the analysis of sentiment analysis, quality evaluation, false comment recognition to the usefulness of comments. Previous studies have focused on online product reviews while news reviews. Social media research has been relatively rare. social media and news commentary contain readers' opinions and evaluations on current events, and reflect the trend of public opinion. The purpose of this paper is to investigate and analyze the intrinsic link between social media content of different type and the number of commentaries, and sentiment analysis.
Research on Adidas International Development Strategy under COVID-19
Authors: Zhang Xiaoyu
Published: November 2021

Affected by COVID-19, Adidas' global net sales in 2020 decreased by 3.756 billion euros compared to 2019. Adidas's net sales worldwide decreased by 3756 million euros in 2020 compared to 2019. This article will analyze the changes in Adidas's operation situation and competitiveness under the impact of COVID-19. At the same time, combined with the 2016-2020 financial statement data publicly disclosed by Adidas, this article will analyze the specific impact of COVID-19 on Adidas' financial status and provide a more in-depth interpretation of the financial statements. The goal of this article is to analyze Adidas' future development strategy and make recommendations by analysing the impact of COVID-19 so that it can better meet the needs of external interests and internal management. Many scholars' relevant research is mostly on the development strategy research at the macro level. However, there is a lack of strategic research on the micro-enterprise level after being affected by COVID-19. This article first reviews the literature and expands new research directions based on existing research. Then, this article will use the PEST method to analyze the changes in Adidas's external macro environment under the influence of COVID-19 and apply the theory and methods of financial statement analysis to specific applications. Then this article will combine Potter's five forces model analysis method to further analyze Adidas' external environment and industry environment under the influence of COVID-19. Finally, this article will conclude and put forward development strategy recommendations.
Research on the Impact of "Competitive Neutrality" Rules on Chinese State-owned Enterprises
Authors: Lin Xiaobin , Ruan Wenjing , Gao Guowei , Xiao Hanxiong
Published: November 2021

"Competitive neutrality" rules are becoming the focus of attention of the new generation of international economic and trade rules. "Competitive neutrality" rules hinder state-owned enterprises from opening up international markets. It also will weaken the domestic competitive advantage of state-owned enterprises, and the public service capabilities of state-owned enterprises. Therefore, China needs to implement state-owned enterprise reforms to better respond to this trend.
How The Livestream Marketing Model Influence the Consumer Decision-Making Process Amid the COVID-19?
Authors: Luo Bingzhu
Published: November 2021

The emerging of new media platforms and technology advancements is changing the landscape of online retailing and "touchpoints" in the consumer journey. How does the livestream marketing model influence the consumer decision-making process, and why it achieves exponential market growth within years are significant to answer? This article utilized the Five-Stage Model of the Consumer Buying Process, content, and data analysis method to conduct an in-depth case study of Alibaba's Taobao T-mall "Double 11" livestream marketing campaign amid COVID-19. The result shows that livestream marketing plays as an amplifier and filter that stimulates consumers to make the most cost-efficient purchase choices and largely shortens decision-making time. It undertakes the responsibilities of simultaneously entertaining the audience with intriguing digital content and providing consumers with seamless purchase experiences. The high integration degree between supply chain and livestreamers, showrooms and online e-commerce stores, brands and consumers empowers livestream marketing to convert public traffic pools into precisely segmented private traffic communities. Supported by a mature ecosystem, livestreaming will help create a multi-win situation for brands, consumers, online retailers, livestreamers, and e-commerce platforms with a lower barrier to entry and higher conversion rate across niche markets. This article is applicable to further studies in the academic fields of digital marketing, online retailing, psychology, economics, business, and sociology. It will also provide marketers and brands with strategic tools to better understand consumers' decision-making process, adapt to new alternations of "moment that matters", precisely target segmented audience groups, and enhance overall business performance.
DİJİTAL EKONOMİ VE İŞGÜCÜ PİYASASI ARASINDAKİ İLİŞKİNİN KANONİK KORELASYON ANALİZİ İLE İNCELENMESİ
Authors: ŞENGÜL Zeynep
Published: November 2021

Özet

Bu çalışmada Eurostat 2019 Avrupa ülkelerinin dijital ekonomi değişken kümesi ile işgücü piyasası kümesi arasındaki ilişki analiz edilmektedir. İki değişken kümesinde yer alan her birinde en az iki değişken olması gereken değişken gruplarının birbirleri arasındaki ilişki çok değişkenli istatistik yöntemi olan kanonik korelasyon analizi ile incelenmektedir.

Kanonik korelasyon uygulanmadan önce tüm varsayımlar sağlanarak, basit korelasyon uygulanmaktadır. Basit korelasyon matrisi incelendiğinde tüm değişkelerin birbirleri arasındaki ilişkinin olumlu olduğu görülmektedir. Uygulanan analiz sonucunda üç tane kanonik korelasyon katsayısı hesaplanmakta sadece birinci kanonik korelasyon katsayısı anlamlı çıkmaktadır. Birinci kanonik katsayısı 0.668 olarak hesaplanmakta ve dijital ekonomi ile işgücü piyasası kümeleri arasında olumlu ve güçlü denilecek kadar bir ilişkinin var olduğu söylenmektedir.
Introducing a New Approach in Stand Tending Planning and Thinning Block Designation by Using Mixed Integer Goal Programming
Authors: Demirci Mehmet , Yesil Ahmet , Bettinger Pete
Published: November 2021

Long-term management plans have been developed for nearly all of the forests in Turkey. These plans are applied at a sub-district management unit level and may contain guidance for both intermediate yield and final yield harvests. To implement an intermediate yield plan, which involves the scheduling of forest thinnings (stand tending), consideration in Turkey is given to the advantages of working in the same terrain and the same general area each year. Therefore, compartments are often clumped together to create thinning blocks, taking into consideration the thinning priority of the stands, road conditions, site index, age, and proximity of the compartments. Further, when preparing annual budgets and planning to meet the market’s needs, forest enterprises require an even flow of intermediate wood volume each year. In this paper, we introduce a new approach in stand tending planning designed to schedule an equal amount of intermediate wood volume each year and to create thinning blocks by minimizing the distance to pre-defined ramps (landings). We developed both linear and nonlinear goal programming models to minimize both the deviations from a harvest volume (annual intermediate yield allowable cut) target and the deviations from a target value determined for the distances (total and average) of the centroid of each compartment to the hypothetical forest ramps. By using the extended version of Lingo 16, we solved the problem with different weights for the deviations in volume and distance that ranged from 0.0 to 1.0, in 10% intervals, which created 11 scenarios. We carefully analyzed the results of each scenario by taking into consideration the wood volume and distance of compartments to the ramps. The best scenario using the linear model produced a deviation in volume scheduled for the entire decade of 6 m3, while the deviation in total distance between harvest areas and ramps was 59.7 km. Scenario 5, with weights of 0.6 for volume and 0.4 for distance, produced these results, where compartments were closest to one another. The best scenario using the nonlinear model also produced a deviation in volume of 0 m3 and the total average deviation in distance between harvest areas and ramps was 8.7 km. Scenario 3, with weights of 0.8 for volume and 0.2 for distance, produced these results. The approach and models described through this study may be appropriate for further integration into forest management planning processes developed for the planning of Mediterranean forests.
Forest Fire Risk Zone Mapping of Eravikulam National Park in India
Authors: Pradeep G.S. , Patel Nilanchal , Kuriakose Sekhar L. , Ajin R.S. , Oniga Valeria-Ersilia , Rajaneesh A. , Mammen Pratheesh C. , Prasad Megha K. , Nikhil S. , Danumah Jean Homian
Published: November 2021

Forest fire is one of the most common natural hazards occurring in the Western Ghats region of Kerala and is one of the reasons for forest degradation. This natural disaster causes considerable damage to the biodiversity of this region during the dry fire season. The area selected for the present study, Eravikulam National Park, which is predominantly of grassland vegetation, is also prone to forest fires. This study aims to delineate the forest fire risk zones in Eravikulam National Park using remote sensing (RS) data and geographic information system (GIS) techniques. In the present study, methods such as Analytic Hierarchy Process (AHP) and Frequency Ratio (FR) were used to derive the weights, and the results were compared. We have used seven factors, i.e. land cover types, normalized difference vegetation index, normalized difference water index, slope angle, slope aspect, distance from the settlement, and distance from the road to prepare the fire risk zone map. The area of the prepared risk zone maps is divided into three zones, namely low, moderate, and high. From the study, it was found that the fire occurring in this area is due to natural as well as anthropogenic factors. The prepared forest fire risk zone maps are validated using the fire incidence data for the period from January 2003 to June 2019 collected from the records of the Forest Survey of India. The investigation revealed that 72% and 24% of the fire incidences occurred in the high risk zone of the maps prepared using the AHP and FR methods, respectively, which ascertained the superiority of the AHP method over the FR method for forest fire risk zone mapping. The receiver operating characteristic (ROC) curve analysis gives an area under the ROC curve (AUC) value of 0.767 and 0.567 for the AHP and FR methods, respectively. The risk zone maps will be useful for staff of the forest department, planners, and officials of the disaster management department to take effective preventive and mitigation measures.
Assessment of Chainsaw Operators Training in Andalusia (Spain)
Authors: Ferreira María del Carmen Pardo , Caparrós Francisco Salguero , Castrillo Jesús Antonio Carrillo , Romero Juan Carlos Rubio
Published: November 2021

The chainsaw, as a work equipment, is considered one of the most dangerous in the field of occupational health and safety. The chainsaw is especially used in the forestry sector, although it is also used in other different sectors such as agriculture, construction or gardening. This study was carried out using an ad-hoc questionnaire as a research tool in order to assess the weaknesses in the training received by workers who use chainsaws in Andalusia, Spain, since it has never been addressed before. To achieve the objective set, the questionnaire was completed by 378 operators working with chainsaw and their responses were analysed. The results of this study show that there are obvious shortcomings related to work with chainsaws in very significant aspects for the occupational health and safety. Of special importance is the lack of training detected on rescue techniques and work at height, since these are aspects of special risk for workers’ health that could cause accidents with severe injuries. Also, a common denominator in all aspects studied was the lack of safety inspections and the state of the equipment to be used. These results evidence that there is a need to regulate chainsaw operator training.
Influence of Intelligent Boom Control in Forwarders on Performance of Operators
Authors: Zemánek Tomáš , Fiľo Petr
Published: November 2021

This paper deals with the influence of an Intelligent Boom Control (IBC) in forwarders on the work of operators. The work with the IBC and standard system of crane control was measured by the use of a John Deere harvester and forwarder simulator. Two individuals without any practical training and two individuals with experience in the control of the crane took the measurements. The monitoring included eight different performance indicators. The use of the IBC system allowed the untrained operators to increase their work output by 27. With the use of the IBC system, these individuals also showed 53% fewer direct damages to the machine. However, our findings show that the length of experience influenced the performance of the operators out of all the monitored indicators. Notwithstanding that fact, the use of the IBC system has a direct positive influence on the economy of the machine operation.
Hoe weet je wat werkt? Over de zoektocht naar bruikbare kennis voor beleidseffectiviteit
Authors: van Eersel Gerdien
Published: November 2021

Hoe weet je wat werkt? Over de zoektocht naar bruikbare kennis voor beleidseffectiviteit

Welke kennis is nodig om zicht te krijgen op de te verwachten effecten van beleid? Hiervoor moet worden ingeschat of een beleidsinterventie effectief zal zijn en binnen een bepaalde context zal uitwerken zoals beoogd. Twee typen kennisclaims zijn hierbij van belang, namelijk die over de verklarende mechanismes tussen interventie en uitkomst, en die over de ondersteunende factoren die voorwaardelijk zijn voor de uitkomst. Dit standpunt wordt geïllustreerd aan de hand van twee voorbeelden van beleidsinterventies in de praktijk: de inzet van kleinere schoolklassen en de publieke registratie van zedendelinquenten.
Synchronization of Transmission Systems with ANS-DM Codecs
Authors: Golański Ryszard , Godek Juliusz
Published: November 2021

Adaptive Delta Modulation with Non-uniform Sampling (ANS-DM) is one of the waveform coding techniques, where a sampling instant and a quantization step size are adapted to the signal. The ANS-DM modulator produces an output binary stream, that carries information about the signal and includes necessary data of coder parameters (sampling instant and quantization step). In the demodulator, these values are recovered for proper signal reconstruction.
The paper reports the problem of synchronizing clocks (transmitting and receiving) in the (ANS-DM) delta codecs systems. The original synchronization method, valuable in systems dedicated to the transmission of the bits with variable time duration was projected and experimentally verified. Performed measurements and observations have shown the elimination of the synchronization loss phenomenon.
APEKS - a method of making decisions
Authors: Szybka Jan , Pabian Sylwester
Published: November 2021

The APEKS method was developed in the 1970s. It has a wide range of applications for making a decision. The article describes the APEKS method, which is a multi-criteria method and consists of 10 steps. The application of this method was presented in the example of car selection. The problem of choosing a passenger car was analyzed taking into account 6 evaluation criteria: fuel consumption, power, price, annual operating costs, aesthetic values, and utility values. Following the APEKS method, the analysis was completed with the selection of the best variant, using the forced decision method, consisting of an individual comparison of all criteria with one another. The APEKS variant is used for this, which has all the best features of the variants to choose from. This indicates that APEKS is an idealized and fictional variant.
Mathematical forecasting composition of secondary carbides in the single-crystal superalloys
Authors: Glotka O.A. , Olshanetskii V.I.
Published: November 2021

Purpose: Predicting the specifics of the distribution of alloying elements between secondary carbides, their topology, and morphology, as well as the composition for a single-crystal multicomponent system of the type Ni-11.5Cr-5Co-3.6Al-4.5Ti-7W-0.8Mo-0.06C using the calculated CALPHAD (passive experiment) versus scanning electron microscopy (active experiment).
Design/methodology/approach: This work presents the results of studies of the distribution of chemical elements in the composition of carbides, depending on their content in the system. The studies were carried out using an electron microscope with computer analysis of images and chemical composition.
Findings: It was found that the influence of alloying elements on the composition of carbides is complex and is described by complex dependencies that correlate well with the obtained experimental results.
Research limitations/implications: An essential problem is the prediction of the structure and properties of superalloys without or with a minimum number of experiments.
Practical implications: The obtained dependencies can be used both for designing new superalloys and for improving the compositions of industrial alloys.
Originality/value: The value of this work is that the obtained dependences of the influence of alloying elements on the dissolution (precipitation) temperatures and the distribution of elements in secondary carbides in the superalloy of the Ni-11.5Cr-5Co-3.6Al-4.5Ti-7W-0.8Mo-0.06C system. It was found that changes in the course of the curves of temperature dependence on the element content closely correlate with thermodynamic processes occurring in the system, that is, the curves exhibit extrema accompanying the change in the stoichiometry of carbides or the precipitation of new phases.
Dual Energy Computed Tomography for Diagnosis and Monitoring Attempted Medical Management of a Large Urate Urolith in a Desert Tortoise (Gopherus agassizii)
Authors: Eisenbarth Jessica , Gauntt David M. , Rivas Anne E.
Published: November 2021

An estimated 29-year-old male, desert tortoise ( Gopherus agassizii ) under professional care presented for endoscopic liver biopsies as part of a diagnostic work-up for recurrent, profound anemia and hypoalbuminemia. Suspected cystoliths were identified during endoscopy but were not visible on contemporary radiographs. Dual-energy computed tomography (DECT) imaging confirmed the presence of a large urate urolith filling the majority of the bladder. Due to the recent clinical illness, the tortoise was considered a poor surgical candidate. Medical management consisting of urinary alkalinization with potassium citrate, vibration therapy, and daily warm water soaks was elected. Following institution of medical therapies, the tortoise began passing pieces of urate stone that were 0.25-2.0cm in diameter during daily soaks. A recheck DECT scan at two months indicated the urolith was approximately 1/3 the initial size, suggesting medical therapy was effectively treating the urolith. Unfortunately, after five months of medical therapy, the stone had increased in size again on the follow-up DECT scan. This case report suggests that medical management may be a potential option for large urate cystoliths in desert tortoises, though more research is needed to further refine effective therapeutics for such cases. The use of dual-energy CT imaging was essential in this case as it enabled confirmation of stone presence, identification of urolith composition, and monitoring of response to therapy.
A cultura da videira: viticultura de altitude
Authors: Canossa Adrielen Tamiris , Kretzschmar Aike Anneliese , Alonço Airton dos Santos , Brighenti Alberto Fontanella , Bogo Amauri , Costa André da , Souza André Luiz Külkamp de , Fagherazzi Antonio Felippe , Silva Aparecido Lima da , Bem Betina Pereira de , Campos Claudia Guimarães Camargo , Rota Cristiane A. , Arioli Cristiano João , Pandolfo Cristina , Brilinger Dahise , Würz Douglas André , Porro Duilio , Souza Edson Luiz de , Brighenti Emilio , Pit Fábio Antônio , Costa Flávia Regina da , Vanderlinde Gabriella , Melo George Wellington , Nava Gilberto , Brunetto Gustavo , Vieira Hamilton Justino , Albuquerque Jackson Adriano , Muniz Jaqueline Nogueira , Bettoni Jean Carlos , Felippeto João , Rosa Joatan Machado da , Ferrareze Jocleita Peruzzo , Marcon Filho José Luiz , Zalamena Jovani , Villar Larissa , Rufato Leo , Carvalho Leonardo Bianco de , Silva Leonardo Cury da , Malinovski Luciane Isabel , Borghezan Marcelo , Botton Marcos , Lima Marilene de , Ciotta Marlise Nara , Canton Monica , Feldberg Nelson Pires , Machado Otávio Dias da Costa , Pértile Patricia , Cassol Paulo Cezar , Luciano Rodrigo Vieira , Simon Suzeli , Silva Tatiane Carine da , Macedo Tiago Afonso de , Caliari Vinícius
Published: November 2021

O livro, com 21 capítulos reunindo inúmeros autores de renomada experiência, traz uma infinidade de informações, fruto de extensas revisões e principalmente obtidas através de densos projetos de pesquisa desenvolvidos pelas principais instituições públicas, capitaneada pela UDESC, em parceria com produtores individuais ou associados, localizados na Região de Altitude mais tradicional na produção de uvas de Santa Catarina. A identificação das melhores cultivares e as possíveis combinações de porta-enxertos, a definição do manejo do dossel, a carga de gemas, o manejo da poda e os sistemas de condução para cada situação, aliados a todas as questões relativas ao manejo o solo, da nutrição e adubação e a delicada e complexa questão da fitossanidade, chegando na colheita e processamento, entre outros, exemplifica a importância de todos capítulos desse grande livro.
Determination of anxiety levels of Turkish University students and affecting factors in COVID-19 pandemic: sample of a private university
Authors: Tisinli Ayla , Saydamlı Şeyda , Ulutin Cüneyt , Ersoy Kübra , Kalın Zeliha
Published: November 2021

Introduction: The Coronavirus disease 2019 (COVID-19) pandemic and its consequences have created anxiety in various segments of society. In particular, the transition to online education brought by this process has made the education process of university students difficult. Therefore, in the COVID-19 pandemic, it is important to examine the anxiety levels of university students and their relationship with somatic symptoms. Objective: To examine the level of generalised anxiety disorder and to reveal the relationship between somatic symptoms and the generalised anxiety disorder level of Turkish university students. Methods: Empirical research. Participants in the research constituted a total of 605 students studying at a private university in İstanbul. The Generalised Anxiety Disorder Scale (GAD-7) was used to collect data. Data were analysed using the chi-square test and Pearson correlation analysis. Results: It was found that, among the participants, 193 (31.90%) of the students had mild anxiety, 149 (24.63%) had moderate anxiety and 121 (20.00%) had severe anxiety. The study revealed that there is a significant positive relationship between the number of somatic symptoms and generalised anxiety disorder scores of university students. Conclusion: Most of the university students are affected by anxiety during the COVID-19 pandemic and this effect is correlated with the frequency of somatic symptoms. In this context, it would be beneficial for universities to plan for acute and long-term psychological services and to cooperate with the government to provide timely crisis-oriented psychological services.
Neutrophil-mediated oxidative stress and albumin structural damage predict COVID-19-associated mortality
Authors: Badawy Mohamed A , Yasseen Basma A , El-Messiery Riem M , Abdel-Rahman Engy A , Elkhodiry Aya A , Kamel Azza G , El-sayed Hajar , Shedra Asmaa M , Hamdy Rehab , Zidan Mona , Al-Raawi Diaa , Hammad Mahmoud , Elsharkawy Nahla , El Ansary Mohamed , Al-Halfawy Ahmed , Elhadad Alaa , Hatem Ashraf , Abouelnaga Sherif , Dugan Laura L , Ali Sameh Saad
Published: November 2021

Human serum albumin (HSA) is the frontline antioxidant protein in blood with established anti-inflammatory and anticoagulation functions. Here, we report that COVID-19-induced oxidative stress inflicts structural damages to HSA and is linked with mortality outcome in critically ill patients. We recruited 39 patients who were followed up for a median of 12.5 days (1–35 days), among them 23 had died. Analyzing blood samples from patients and healthy individuals (n=11), we provide evidence that neutrophils are major sources of oxidative stress in blood and that hydrogen peroxide is highly accumulated in plasmas of non-survivors. We then analyzed electron paramagnetic resonance spectra of spin-labeled fatty acids (SLFAs) bound with HSA in whole blood of control, survivor, and non-survivor subjects (n=10–11). Non-survivors’ HSA showed dramatically reduced protein packing order parameter, faster SLFA correlational rotational time, and smaller S/W ratio (strong-binding/weak-binding sites within HSA), all reflecting remarkably fluid protein microenvironments. Following loading/unloading of 16-DSA, we show that the transport function of HSA may be impaired in severe patients. Stratified at the means, Kaplan–Meier survival analysis indicated that lower values of S/W ratio and accumulated H2O2 in plasma significantly predicted in-hospital mortality (S/W≤0.15, 81.8% (18/22) vs. S/W>0.15, 18.2% (4/22), p=0.023; plasma [H2O2]>8.6 μM, 65.2% (15/23) vs. 34.8% (8/23), p=0.043). When we combined these two parameters as the ratio ((S/W)/[H2O2]) to derive a risk score, the resultant risk score lower than the mean (<0.019) predicted mortality with high fidelity (95.5% (21/22) vs. 4.5% (1/22), log-rank χ2=12.1, p=4.9×10−4). The derived parameters may provide a surrogate marker to assess new candidates for COVID-19 treatments targeting HSA replacements and/or oxidative stress.