bluuebunny/crossref_metadata_2025 huggingface dataset:
Solar energy forecasting using intelligent techniques: A step towards sustainable power generating system
Authors: Alsaidan Ibrahim , Rizwan Mohammad , Alaraj Muhannad
Published: March 2021

The rapid advancements in the technology, increase in comfort levels, movement of population to urban areas, depletion of fossil fuels and increasing greenhouse gas emissions have invigorated the use of renewable energy resources for power generation in the last few years. The major renewable energy resources which have potential to fulfill the requirements includes solar energy, wind energy, small hydro and biomass etc. Among these major resources, solar energy-based technology is considered as one of the fastest growing technology because of its various advantages and ubiquitous availability of the resources. However, there are certain challenges in the utilization of solar energy for power generation because of various uncertainties in the atmosphere. As a result, the power generated from solar based power plants is fluctuating in nature which is not desirable. Therefore, the utilities are adopting the smart grid approach which has ability to integrate the solar power plants efficiently and the solar energy forecasting is one of the essential tools for this new model. In this paper, AI based techniques are utilized to forecast solar energy using high quality measured solar irradiance data. The forecasting accuracy of the developed models is evaluated based on statistical indices such as absolute relative error and mean absolute percentage error. The results obtained from the developed models are compared to observe the forecasting ability and performance with the high-quality measured data and found accurate.
Internet of things for power inspection system
Authors: DongLi Li , Sheng Wen , Yu Zou , Chong Peng , Yan Jun Jiao , Cao Shipeng , Selim Mahmoud M.
Published: March 2021

According to the actual needs, this paper designs and implements a power inspection system based on the Internet of things GIS, including server and mobile terminal. It mainly includes basic information management, patrol task management, statistical query management, and other functions, and describes its design method in detail. Finally, this paper summarizes the key technologies of the power inspection system based on the Internet of things GIS and describes the realization of each functional module of the power inspection system, and through a more detailed description of the implementation process of each functional module of the system, and an example of operation to show the system.
Pattern recognition of breast tumor based on image dynamic enhancement technique
Authors: Shan Qinxing , Li Zhiwei , Liu Rong
Published: March 2021

At present, the diagnosis of breast tumors is affected by many factors, which leads to certain errors in the diagnosis results. Therefore, it is necessary to improve the diagnosis in combination with the actual situation. This study used the whole tumor ADC histogram to identify the heterogeneous features of benign and malignant breast lesions and used the diffusion characteristics of the whole tumor to construct a diagnostic model suitable for breast tumor image feature recognition. Simultaneously, this study combined the actual situation to construct a system framework of image enhancement algorithm based on Retinex theory, and combined image processing algorithms to improve the model. In addition, this study converted the pixel data type of the grayscale image of each color channel into a double type and converted each color channel image into a logarithmic domain. Finally, in order to study the performance of the algorithm, this study designed a comparative test for performance analysis. The research shows that the algorithm has certain clinical effects and can provide theoretical reference for subsequent related research.
Analysis of inflation influencing factor system based on M-F model and fuzzy statistical test
Authors: Jun He
Published: March 2021

When the new model is used to comprehensively study the dynamic influencing factors of inflation, the conclusions drawn can reflect economic conditions more truly, and can provide more practical policy recommendations for macroeconomic management. According to the machine learning algorithm and the current situation of inflation, this paper constructs an analysis model of the factors affecting inflation based on the M-F model. Moreover, by analyzing the linkage relationship between exchange rate and interest rate under the current economic background, based on the M-F-D model of machine learning, this paper conducts an empirical test on the linkage effect of interest rate and exchange rate since my country’s exchange rate reform. In addition, this paper selects 10 macroeconomic indicators related to inflation from the macroeconomic data and uses the time-varying parameter state space model to conduct a comprehensive analysis. The research results show that the model constructed in this paper has a certain effect in the research of inflationary factors.
Simulation of English intelligent system based on CA-IAFSA algorithm and artificial intelligence
Authors: Wei Xinyu
Published: March 2021

The traditional English teaching mode mostly relies on rote memorization of textbooks, but it lacks the training of oral expression skills and lacks intelligent guidance for students. Taking machine learning algorithm as the system algorithm, this paper combines the CA-IAFSA algorithm to construct an English intelligent system based on artificial intelligence. The system uses image recognition technology, introduces population pheromone and tribal pheromone, and adopts multiple ant colony planning and dual pheromone feedback strategies. Moreover, this paper improves the heuristic information search strategy, pheromone update strategy, and state transition probability of the basic ant colony algorithm. In addition, this paper proposes the MACDPA path planning algorithm to realize the intelligent analysis of English textbook images. Finally, after constructing the model, this paper conducts research and analysis on the performance of the model and uses controlled experimental methods and mathematical statistics to analyze the data. The research results show that the model constructed in this paper performs well in assisted teaching and intelligent translation and meets the expected requirements.
Research on the tension control method of lithium battery electrode mill based on GA optimized Fuzzy PID
Authors: Xiao Yanjun , Yu Anqi , Qi Hao , Jiang Yunfeng , Zhou Wei , Gao Nan , Liu Weiling
Published: March 2021

In the industrial field, the lithium battery industry has a long history and a large market scale. Lithium battery electrode strip rolling mill belongs to the high-end production equipment in the lithium battery industry. However, due to its complex structure, the tension of lithium battery electrode mill is prone to large fluctuation. This will lead to the phenomenon of wrinkle and looseness, which will affect the quality of the electrode strip. At present, the tension control method of lithium battery electrode mill mostly adopts traditional Proportional-Integral-Differential(PID) control. Under this control mode, the production speed and precision of lithium battery electrode mill need to be improved. In this paper, the fuzzy PID tension control method of lithium battery electrode mill based on genetic optimization is studied. Based on fuzzy theory and PID control method, a tension fuzzy PID model is established for experimental verification, and the initial parameters and fuzzy rules of fuzzy PID are optimized by Genetic Algorithm(GA). This method has better stability, can improve the precision of strip tension control, make the tension more stable when the rolling mill is running, and help to improve the quality of electrode strip production.
McStas (ii): An overview of components, their use, and advice for user contributions
Authors: Willendrup Peter Kjær , Lefmann Kim
Published: March 2021

A key element of the success of McStas is the component layer where users and developers alike are contributing to the description of new physical models and features. In McStas, components realise all physical elements of the simulated instrument from source via optics and samples to detector. In this second review paper of the McStas package, we present an overview of the component classes in McStas: sources, monitors, optics, samples, misc, and contrib. Within each component class we give thorough examples of high-quality components, including their algorithms and example use. We present two example instruments, one for a continuous source and one for a time-of-flight source, that together demonstrate the use of the main component classes. Finally, we give tips and instructions that will allow the reader to write good components and elucidate the pathway of contributing new components to McStas.
До питання визначення дефініції адміністративно-правового механізму запобігання булінгу в Україні.
Authors:   Alfred Nobel University, Корнійченко А.О.
Published: March 2021

Статтю присвячено визначенню дефініції адміністративно-правового механізму запобігання бу- лінгу в Україні. Визначено, що за своїм змістом категорії «механізм адміністративно-правового регу- лювання» та «адміністративно-правовий механізм» є тотожними, однак, з огляду на специфіку сфе- ри, у межах якої здійснюється це дослідження, звернено увагу на те, що найбільш доцільним і опти- мальним є використання терміна «адміністративно-правовий механізм». Зазначено, що на сьогод- нішній день відсутнє єдине уніфіковане бачення цієї категорії; кожен із дослідників індивідуалізує згадане поняття, наповнюючи його власним специфічним змістом. Вказано, що адміністративно-пра- вовий механізм можна розглядати у широкому та вузькому розумінні. У свою чергу, в широкому зна- ченні під адміністративно-правовим механізмом варто розуміти явище, за допомогою якого здій- снюється регулювання суспільних відносин нормами адміністративного права. Вузьке значення роз- криває, окрім зазначеного, ще сутність та мету такого регулювання. На основі проведеного дослі- дження зроблено висновок про те, що під адміністративно-правовим механізмом запобігання булін- гу в Україні варто розуміти комплексне явище, яке одночасно є певним процесом та сукупністю пра- вових способів і засобів, що регламентовані адміністративно-правовими нормами, за допомогою яких компетентні суб’єкти уповноважені здійснювати адміністративно-правове регулювання відно- син, пов’язаних із вчиненням дій, що спрямовані на профілактику, запобігання та протидію булінгу в Україні.
Composted Materials on Florida Roadsides
Authors: Miller Grady L. , Harrell Michael S. , Kidder Gerald , Black Robert
Published: March 2021

This fact sheet gives a brief overview of a two-year project conducted by researchers of the University of Florida's Institute of Food and Agricultural Sciences (UF/IFAS) as part of contract WO#7 with the Florida Department of Transportation (FDOT). This document is ENH 872, one of a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date October 1, 2002.

https://edis.ifas.ufl.edu/ep133
Florida Solid and Hazardous Waste Regulation Handbook: Table of Contents
Authors: Olexa Michael T. , Leviten Aaron , Samek Kelly
Published: March 2021

This is EDIS document FE440, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, UF/IFAS, University of Florida, Gainesville, FL. Published December 2003.

https://edis.ifas.ufl.edu/fe440
Florida Solid and Hazardous Waste Regulation Handbook: State Regulation
Authors: Olexa Michael T. , Leviten Aaron , Samek Kelly
Published: March 2021

This document contains a brief overview of the structure of state and local government, followed by a discussion of the major state laws regulating the management of solid and hazardous waste. In addition, it gives a breakdown of both applicable and other laws into major topic areas of interest. This is EDIS document FE454, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, UF/IFAS,University of Florida, Gainesville, FL. Published December 2003.

https://edis.ifas.ufl.edu/fe454
Florida Solid and Hazardous Waste Regulation Handbook: Solid and Hazardous Waste Disposal
Authors: Olexa Michael T. , Leviten Aaron , Samek Kelly
Published: March 2021

This is EDIS document FE457, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, UF/IFAS, University of Florida, Gainesville, FL. Published December 2003.

https://edis.ifas.ufl.edu/fe457
Florida Solid and Hazardous Waste Regulation Handbook: Underground Storage Tanks (UST)
Authors: Olexa Michael T. , Leviten Aaron , Samek Kelly
Published: March 2021

An underground storage tank is any storage tank that has more than 10 percent of its volume below the surface of the ground. This 10 percent includes piping. USTs are very special and DEP has paid close attention to them, giving them their very own series of regulations. Title 62-761 was passed in 1990 and refers solely to USTs. This regulation also provides that certain types of tanks would be exempt from these regulations. This is EDIS document FE459, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, UF/IFAS, University of Florida, Gainesville, FL. Published December 2003.

https://edis.ifas.ufl.edu/fe459
Florida Solid and Hazardous Waste Regulation Handbook: State Agencies
Authors: Olexa Michael T. , Leviten Aaron , Samek Kelly
Published: March 2021

Four state agencies are primarily involved in solid and hazardous waste management and pollution control: Department of Environmental Protection (DEP), Department of Agriculture and Consumer Services (DACS), Department of Health (DOH), and Department of Community Affairs (DCA). This is EDIS document FE464, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, UF/IFAS,University of Florida, Gainesville, FL. Published December 2003.

https://edis.ifas.ufl.edu/fe464
Purchasing Car Insurance: What College Students Should Know
Authors: Horvath Nicholas , Ruiz-Menjivar Jorge , Ellis Sarah M.
Published: March 2021

Florida law requires drivers to have car insurance that provides financial protection in the event of a mishap. This 4-page publication provides an overview of auto insurance requirements in Florida as well as a glossary of car insurance terms for college students. Written by Nicholas Horvath, Jorge Ruiz-Menjivar, and Sarah M. Ellis, and published by the UF/IFAS Department of Family, Youth and Community Sciences, January 2021.
Elder Companion Lesson 2 Aging
Authors: Bolton Elizabeth B.
Published: March 2021

This document is FCS5248/FY588, one of a series of the Department of Family, Youth and Community Sciences, Florida Cooperative Extension Service, University of Florida, UF/IFAS, Gainesville 32611. First published: September 1999. Revised: January 2004.
Adapting the Home
Authors: Dasler Pat J.
Published: March 2021

This document is FCS2215/FY630, one of a series of publications from the distance education in-service "Aging in the 21st Century." First published: September 2003.

FCS2215/FY630: Adapting the Home (ufl.edu)
Children in Self-Care
Authors: Ferrer Millie , Fugate Anne M.
Published: March 2021

Self-care can be a positive and rewarding experience for children who are ready for it and are properly prepared. It can help them develop independence and learn responsibility. And, it can give them confidence in their own abilities. However, if a child is not mature enough, selfcare can be an anxiety-producing and dangerous situation. This document is FCS2223, one of a series of the Department of Family, Youth and Community Sciences, Florida Cooperative Extension Service, University of Florida, UF/IFAS Gainesville FL 32611. First published: October, 2003.
University of Florida Potato Variety Trials Spotlight: ‘Adirondack Blue’
Authors: Andrade Mario H. M. L. , Mwatuwa Rodrick Z. , Christensen Christian T. , Solano Pam , Zotarelli Lincoln
Published: March 2021

‘Adirondack Blue’ is a potato variety commonly grown for the specialty potato market. It was selected from progeny of a cross between N40-1 and NY96 and tested under the pedigree S45-5 by Cornell University and released in 2003. Tuber production and quality results provided in this spotlight are summarized from variety trials conducted at the UF/IFAS Hastings Agricultural and Extension Center from 2011 to 2019.
This is a minor revision with an added author. Original version published 5/2017.https://edis.ifas.ufl.edu/hs1293
Reduction of the Impact of Fertilization and Irrigation On Processes in the Nitrogen Cycle in Vegetable Fields with BMPs
Authors: Cockx Eve-Marie , Simonne Eric H.
Published: March 2021

The goals of this article are to (1) present the N cycle as it relates to crop production, (2) describe how fertilization and irrigation affect the processes within N cycle, and (3) explain how the proposed BMPs may help reduce the negative environmental impact of these cultural practices. This document is HS948, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: September 2003.

HS948/HS201: Reduction of the Impact of Fertilization and Irrigation On Processes in the Nitrogen Cycle in Vegetable Fields with BMPs (ufl.edu)
Pantropical Jumping Spiders in Florida
Authors: Edwards, Jr. Glavis B.
Published: March 2021

Jumping spiders, or salticids, are so named because they have a highly coordinated jumping ability with which they capture prey and traverse from plant to plant. Their sense of sight is extraordinary for invertebrates; they can see in color (DeVoe 1975), and the large front eyes focus on objects (Land 1972). Many are marked withcontrasting colors or bands, especially the males who display this ornamentation while dancing before females to win acceptance for mating. Jumping spiders as adults may be as small as 1 mm in length or as large as 23 mm, but most are 5 to 10 mm. All jumping spiders are harmless to humans, although the larger species can give a locally painful bite if roughly handled. This document is EENY-158 (originally published as DPI Entomology Circular 199), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: October 2000. Revised: September 2002.

EENY-158/IN315: Jumping Spiders, Gray Wall Jumper, and Pantropical Jumper Menemerus bivittatus (Dufour) and Plexippus paykulli (Audouin) (Arachnida: Araneae: Salticidae) (ufl.edu)
Protecting Water Resources from Agricultural Pesticides
Authors: Nesheim O. Norman , Fishel Frederick M.
Published: March 2021

Revised! PI-1, a 5-page illustrated fact sheet by O. Norman Nesheim and Frederick M. Fishel, describes practices that help protect groundwater and surface water from pesticide contamination. Includes references. Published by the UF Department of Agronomy, April 2009.

 

Original version published June 1993. This revision was updated in February 2018 and retired from active collection February 2021.
Specifically Regulated Pesticides in Florida -- Bromacil
Authors: Fishel Frederick M.
Published: March 2021

Revised version:

Fishel, Frederick. 2018. “Specifically Regulated Pesticides in Florida: Bromacil”. EDIS 2018 (3). https://doi.org/10.32473/edis-pi112-2018.

Removed from active collection February 11, 2021.
Managing Pythium Blight in Overseeded Turf
Authors: Datnoff Lawrence , Stiles Carol , Cisar John
Published: March 2021

Pythium blight is a fast moving disease that can destroy an established grass stand within 24 hours after the first symptoms become visible, especially in a warm, humid environment. Typical initial symptoms include irregularly purplish to dark shaped areas, with a dark water-soaked appearance on the leaf blades. These leaves will become soft and slimy, mat together and eventually turn necrotic (brown), and die. Early in the morning or when the humidity is high, the leaves may be covered with white, cobwebby mycelium of the pathogen, Pythium aphanidermatum. This document is PP-66, one of a series of the Plant Pathology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: July, 2003.

https://edis.ifas.ufl.edu/pp115
Impact of Agricultural Land Use on Nitrate Levels in Lake Manatee, Florida
Authors: Stanely Craig D. , Clarke R. A. , McNeal Brian L. , Macleod B. W.
Published: March 2021

Nutrient enrichment of surface water bodies is often attributed to nonpoint source pollution from agricultural production areas where applied fertilizer has been leached from the point of application. Where this enrichment results in eutrophication of the water body, environmental and/or economic burdens are placed on society to live with or rectify the situation. This is document SL 209, a publication of the Soil and Water Science Department, Florida Cooperative Extension Service, IFAS, University of Florida. Published September 2003.
Birdfeeders: What to Consider When Selecting
Authors: Hostetler Mark E. , Main Martin B. , Voigt Maena
Published: March 2021

The history of birdfeeding in America dates back to 1845, when Henry David Thoreau fed birds at Walden Pond. In 1926, the first commercially made birdfeeder, designed for hummingbirds, went on the market. Today, more than 50 million Americans put out a billion pounds of birdfeed each year. Before placing a feeder in your backyard, you should think about a few key points. This document contains suggestions that are useful guidelines. The BEST way to determine how to attract birds to your feeders is to experiment. This document is WEC 162, one of a series of the Department of Wildlife Ecology and Conservation, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First published September 2003. 

WEC 162/UW192: Attracting Backyard Birds: Bird Feeder Selection (ufl.edu)
A Systematic Approach to Solving Hatchability and Chick Quality Problems
Authors: Butcher Gary D. , Nilipour Amir H.
Published: March 2021

A program involving routine analyses of incubating eggs and hatch residue provides a powerful monitoring and diagnostic tool to breeder, broiler, and hatchery managers. This program would allow managers to stay abreast of many problems with breeder performance, egg management, and broiler grow-out. An organized, scheduled program would verify that the processes of egg production and incubation are being done correctly. Data generated by egg breakout analyses provide information of the flock history, details of breeder and hatcherymanagement, and anticipated early broiler performance. This document is VM136, one of a series of the Veterinary Medicine-Large Animal Clinical Sciences Department, Florida Cooperative Extension Service,Institute of Food and Agricultural Sciences, University of Florida. Original publication date June 12, 2002.

VM136/VM101: A Systematic Approach to Solving Hatchability and Chick Quality Problems (ufl.edu)
The Master Hoof (Claw) Care Program: Summary Statistics From Three Years
Authors: Shearer Jan K. , Van Amstel S. R. , Gonzalez-Sagues A. , Shearer L. C.
Published: March 2021

In 1996, through a grant from the Florida dairy farmers, the Master Hoof Care Program was developed at the University of Florida. The objective of this program was (and is) to train dairy health care technicians and others in proper methods of foot care and claw trimming. The program is offered three times per year at the University of Florida and once annually at the University of Tennessee. This document is VM145, one of a series of the College of Veterinary Medicine-Large Animal Clinical Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date August 7, 2002.

https://edis.ifas.ufl.edu/vm109
Using "Ag in the Classroom" curricula: Teachers' awareness, attitudes and perceptions of agricultural literacy
Authors: Malecki Cynthia L. , Israel Glenn D. , Toro Elena
Published: March 2021

Florida's residents are more dependent than ever on agriculture, but for many the relationship is invisible. This is because it is masked by the proliferation of widely available food products on store shelves and numerous intermediaries in the food processing, distribution and marketing system. The mission of agricultural education today is to create an awareness of this progression as well as the need for the agricultural industry. Additionally, agricultural education should create awareness about how newly developed technologies have become an integral part of the world's production of food and fiber. This document is AEC 370, a publication of the Agricultural Education and Communication Department, Florida Cooperative Extension Service, Instituteof Agricultural and Food Sciences, University of Florida. Publication date January, 2004.
Weed Control in Parsley
Authors: Stall William M.
Published: March 2021

Parsley is placed in the "leafy greens" EPA group due to its closeness to lettuce and spinach for residues. Bensulide may be applied to parsley preplant incorporated or preemergence on mineral soils. This document is HS952, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: August 2003.

HS952/WG212: Weed Management in Parsley and Cilantro (ufl.edu)
ФІНАНСОВА БЕЗПЕКА ЯК УМОВА ФІНАНСОВОЇ СТІЙКОСТІ ПІДПРИЄМСТВА
Authors: Клочко Тетяна
Published: March 2021

Актуальність дослідження викликана необхідністю всебічного вивчення стану фінансової стійкості і безпеки підприємства, виявлення факторів (загроз і небезпек), що призводять до втрати фінансової стійкості і безпеки з метою вибору і обґрунтування рішень, протидіючих цієї тенденції. Підтверджена пряма залежність між рівнем фінансової безпеки, методами фінансування підприємства і економічною безпекою в цілому в умовах динамічних змін кон'юнктури ринку. Підтверджено взаємозв’язок між фінансовою стійкістю підприємства та іншими фінансовими категоріями: фінансовою безпекою, гнучкістю, стабільністю, рівновагою. Встановлено, що забезпечення відповідного рівня фінансової безпеки підприємства залежить від сформованої концепції управління фінансовою безпекою, яка має містити таку послідовність етапів: аналіз фінансового стану та розробка методологічного інструментарію оцінки рівня фінансової безпеки підприємства.
ІНФОРМАЦІЙНЕ ЗАБЕЗПЕЧЕННЯ ПЕРСПЕКТИВНОГО РОЗВИТКУ АГРАРНОГО ПІДПРИЄМНИЦТВА
Authors: Харченко Володимир , Харченко Ганна
Published: March 2021

Стаття присвячена дослідженню питань щодо визначення ефективності виробничо-господарської діяльності організаційно-правових форм господарювання на регіональному рівні та наданні пропозицій щодо формування дієвої системи їх інформаційного забезпечення. Здійснена інтегральна рейтингова оцінка ефективності виробничо-господарської діяльності організаційно-правових форм власності Чернігівської області. Визначено, що ключовими проблемами ефективної діяльності сільськогосподарських підприємств є їх низький рівень інформаційного забезпечення. Запропоновано модель інформаційного забезпечення аграрного підприємництва, що забезпечить поширення і актуалізацію даних для всіх зацікавлених відділів підприємства; створення аналітичної системи для прийняття управлінських рішень; підвищення достовірності інформації та забезпечення її доступності на всіх рівнях управління.
Pengaruh Rasio Profitabilitas, Leverage dan Kebijakan Dividen Terhadap Nilai Perusahaan Studi Pada Sektor Perbankan Di Bursa Efek Indonesia
Authors: Maharani Ida Ayu Dinda Priyanka
Published: March 2021

This study discusses the relationship between profitability ratios, leverage and dividend policy on firm value in the banking sector on the Indonesia Stock Exchange. The banking sector was chosen because the banking sector is one of the fastest growing sectors and has promising long-term business prospects. The high value of the company will affect the level of prosperity of shareholders. Several factors affect firm value, namely profitability, leverage, and dividend policy, which are factors that can be controlled by the company. This study uses Dividend Irrelevance Theory and Bird in The Hand Theory as the main theory in explaining the importance of profitability ratios, leverage ratios and dividend policies in increasing firm value. The analysis technique uses the Path Analysis estimation technique. The results of the study found that leverage has a negative and significant effect on firm value and leverage has a negative effect on dividend policy.
VIDAS PRETAS IMPORTAM... COVID-19, PRECONCEITO, TRABALHO E CAPITALOCENO
Authors: Coltro Fábio Luiz Zanardi
Published: March 2021

Vidas pretas importam, esse é o grito que ecoa nas ruas das cidades no mundo todo! O fato do ex-segurança negro George Floyd ter sido assassinado por policiais brancos nesse momento de pandemia, mostra muito mais sobre o sistema em que vivemos do que podemos imaginar. A partir deste fato, o presente artigo busca articular os impactos da pandemia de covid-19 no trabalho e o pensamento de ecologia-mundo capitalista de Jason W. Moore, para apontar uma nova época geológica, o capitaloceno. Assim, partindo da discussão do trabalho e dos 4 baratos necessários para o avanço do capital, apontamos a crise sistêmica do capitalismo e as possíveis consequências dessa crise.Palavras-chave: Covid-19, Capitaloceno, Trabalho-barato, Ecologia-mundo capitalista;
AGRICULTURA CAMPONESA E AGROECOLÓGICA, ALIMENTANDO A R-EXISTÊNCIA PARA ALÉM DA PANDEMIA
Authors: Ikuta Fernanda Keiko , Candido Mariana Nunes , Meneghini Giovana , Costa Cesar Renato Ferreira da , Barreto Marcelo , Favaro Jorge Luiz , Da Silva Antônio João Hocayen , Auceli Paola Karoline Swenar
Published: March 2021

O presente texto tem como objetivo refletir sobre os desafios impostos pela pandemia do covonavírus para a experiência do projeto de extensão “Feira Agroecológica” da UNICENTRO. Neste sentido, busca compreender o papel dos sujeitos agroecologistas, da extensão universitária e de outras formas de r-existência na construção de um projeto de sociedade que possa transpor a crise civilizatória fomentada pelo capitalismo neoliberal. A pandemia se sobrepõe às desigualdades históricas e estruturais fazendo remontar sobre os mais vulneráveis, múltiplas ameaças, todavia, a reinvenção das práticas camponesas agroecológicas, somada à solidariedade entre campo e cidade, anunciam os limites desta sociedade pautada na destruição e, portanto, a necessidade de olhar e projetar para além desta pandemia.
APRESENTAÇÃO
Authors: Heck Fernando Mendonça
Published: March 2021

APRESENTAÇÃO
Development of resource-saving and environmentally safe beryllium bronze soldering technology
Authors: Berezhnyy Stanislav , Kapustian Oleksii , Kulykovskyi Ruslan , Avdeev Ihor , Uriekin Danylo
Published: March 2021

The composition of the solder, which provides the necessary technological properties of the product, namely, electrical conductivity and mechanical strength of the junction was selected. The possibility of brazing beryllium bronze with a silver contact plate by furnace brazing using fluxes based on NaCl: CaCl2: CaF2 salts, respectively (24: 61: 15% mass) in the atmosphere was established. The possibility of brazing BrB2 beryllium bronze in the atmosphere using a research flux based on the eutectic of the NaCl – CaCl2 system (28…72% wt.) adding 15% CaF2 over a copper layer is shown. The technology for brazing beryllium bronze BrB2 with silver contact plates with silver solder PSr68 has been developed. The brazing process is combined with the hardening operation, which allows avoiding additional thermal operations; flux residues are removed during hardening and do not actually need additional cleaning operations; applied solder, flux components and technologies for applying a layer of copper are not scarce and relatively cheap, which can significantly reduce the cost of the product, subject to the requirements of the technical specifications. A technological process that makes it possible to refuse of using vacuum systems and toxic fluxes has been developed.
Evaluation of methods for determining abnormalities in cardiovascular system by pulse signal under psycho-emotional stress in dental practice
Authors: Yavorska Yevhenia , Strembitska Oksana , Strembitskyi Mykhailo , Hvostivska Lilia
Published: March 2021

The purpose of this paper is to compare the existing methods of pulse signal analysis in order to select the best methods for detecting psycho-emotional stress in dental practice. The carried out analysis showed that analytical methods are the most promising for the creation of new and improvement of existing diagnostic equipment, as they contain clear algorithms and have high reproducibility of calculation results.
Oil Flax for Long Fiber Production
Authors:   Federal Scientific Center for Bast Crops, Soboleva E.V. , Novikov E.V. ,   Federal Scientific Center for Bast Crops, Bezbabchenko A.V. ,   Federal Scientific Center for Bast Crops
Published: March 2021

The paper presents the results of studies on the possibility of producing long flax fiber in scutching-and-breaking machines from flax straw obtained from modern varieties of oil flax in the form of whole stems of autumn and spring harvesting. The inexpediency of obtaining scutched flax from this type of raw material has been determined.
PELUANG TERJADINYA PENGANGGURAN DI PROVINSI BENGKULU : SEBERAPA BESAR?
Authors: Marini Lisa , Putri Novi Tri
Published: March 2021

The aim of this research is to analyze how are opportunity occured unemployment based on characteristics of populations in Bengkulu province. Characteristics of populations that used are education, training/course certificate, age, gender, work experience, marital status, status in the family, and area of residence. The analytical method used to achieve this goal is the logistic regression analysis. Type of key data use row data derived from the National Labor Force Survey (Sakernas) February 2018. The result of the calculation using the program SPSS 20.0 was found that not all the variables of population characteristics significantly affect the chances of unemployment with a confidence level of 95 percent. Education and age are significantly affect of unemployment in Bengkulu Province, while training/course certificate, gender, work experience, marital status, status in the family and area residence are not significantly affect of unemployment in Bengkulu Province. Keywords: Logistic Regression Analysis, National Labor Force Survey  (Sakernas), Unemployment.
O comportamento do consumidor de infoproduto
Authors: Costa Ana Cássia , Silva Monique de Almeida
Published: March 2021

O comportamento do consumidor moderno se modifica de forma acelerada desde o boom da internet nos anos 2000. Se naquela época já se anunciava a mudança de toda uma cultura da humanidade com o advento da web, com as redes sociais esse consumidor ficou cada vez mais ativo no processo e consciente de seu poder. O objetivo desse trabalho é analisar o comportamento desse consumidor de produtos digitais e para isso, utilizou-se de pesquisa bibliográfica e documental sobre o assunto. Esse é um tema em constante transformação e consequentemente, ainda há muito que se observar, pois a tecnologia também está em constante evolução. O que se pode observar a partir da literatura sobre o assunto, bem como a pesquisa documental, é que o consumidor tradicional mudou seu comportamento e tenta se adaptar ao consumo digital dada a gama de ofertas que esse novo formato oferece. Do outro lado, o mercado evolui para atender as necessidades cada vez mais exigentes do consumidor.
PROBLEM MENDASAR PENERAPAN BEA PEROLEHAN HAK ATAS TANAH DAN/ATAU BANGUNAN
Authors: Faishal Achmad
Published: March 2021

Pentingnya artikel ini adalah untuk menunjukkan bahwa penerapan Pajak Bea Perolehan Hak Atas Tanah dan/atau Bangunan (BPHTB) terdapat problem mendasar, Pertama, ditengah masyakarakat terdapat suatu keadaan ketidaktahuan bahwa perolehan hak atas tanah dan/atau bangunan terkena kewajiban pajak, hal itu terjadi akibat ketiadaan informasi publik yang menjadi hak dari publik untuk mengetahuinya. Kedua, dalam eksistensi pemungutannya saat ini, ternyata besaran pungutannya berdasarkan pada regresi dasar nilai perolehan objek pajak yang oleh aturan bisa menggunakan harga transaksi jual beli atau Nilai Jual Objek Pajak pada Pajak Bumi dan Bangunan (NJOP PBB) tahun perolehannya. Hal demikian menimbulkan adanya ketidakpastian hukum. Ketiga, peralihan hak atas tanah dan/atau bangunan kekuatannya dipengaruhi aturan keharusan dihadapan Pejabat Pembuat Akta Tanah/Notaris (PPAT/Notaris)   dan akta peralihan hak hanya akan ditandatangani oleh Notaris apabila Bea Perolehan Hak Atas Tanah dan/atau Bangunan telah dibayar. Karena adanya regresi dasar nilai perolehan objek Pajak dapat menimbulkan perbedaan besaran nilai Pajak, maka PPAT/Notaris cenderung melibatkan diri untuk mengarahkan pada bentuk transaksi dengan menurunkan harga jual beli agar nilai Pajak tidak sebesar yang semestinya. Kondisi-kondisi tersebut dikemukakan dalam artikel ini secara dialektis sebagai respon terhadap kondisi aturan hukum.
Towards a future without stocking: harvest and river regulation determine long-term population viability of migratory salmonids
Authors: Nater CR , Stubberud MW , Langangen Ø , Rustadbakken A , Moe SJ , Ergon T , Vøllestad LA , Vindenes Y
Published: March 2021

Freshwater species are particularly vulnerable to emerging threats linked to climate change because they are often already heavily impacted by habitat destruction, pollution, and exploitation. For many harvested populations of freshwater fish, these combined impacts have been mitigated for decades through stocking with captive-bred individuals. However, stocking may lead to loss of genetic variation, which may be crucial for adaptation under climate change. Exploration of sustainable alternatives is therefore paramount. We used a female-based integral projection model (IPM) to assess the consequences of terminating a long-term stocking programme for a population of landlocked, migratory brown trout Salmo trutta, and to evaluate relative effectiveness of alternative management strategies involving harvest regulations and river habitat improvement. The IPM classified individuals by body size, life history stage, and location relative to a hydropower dam, and was parameterised with 50 yr of individual-based data, supplemented with literature values. Model simulations indicated a strong population decline of 22-29% per year without stocking, much of which was attributed to high harvest mortality. Consequently, drastic reductions in fishing pressure were predicted to be necessary to ensure population viability without stocking. Mitigation measures reducing mortality associated with the hydropower dam or restoring spawning areas could further contribute to population viability when combined with changes in harvest regulations. Our results thus emphasise that large changes in management strategies, such as termination of long-term stocking programmes, require a thorough assessment of potential consequences and alternative mitigation strategies using data and models, or, at the very least, a precautionary approach under consideration of on-going climate change.
Reorientasi Maqasid Terhadap Pemikiran Islam Reformis (Studi Pemikiran Maqasid Ibn ‘Ashur)
Authors: Anang Firdaus Mohamad
Published: March 2021

Ibn ‘Ashur is considered as one of the founders of modern Maqasid science which plays a role as a link between the thinking of salaf ulama and contemporary-reformist Islamic thought. This article tries to find the intersection between the maqasid theory and the reformist Islamic movement in the development of the thinking of maqasid Ibn ‘Ashur. This article is written as library research in which the author uses a thematic study of Maqasid as an approach to Islamic studies in three books written by Ibn ‘Ashur, for Searching the correlation of the concept to answer the problems in this study, among others; al-Tahrir wa al-Tanwir; Alaysaå al-Subh bi Qarib and Usul al-Nizam al-Ijtima'iy fi al-Islam. And supported by secondary references taken from books and journals related to the research theme. This article finds that Ibn ‘Ashur’s efforts in reorienting Maqasid theory to reformist Islamic thought are seen in the concept of Maqasid al-Qur’an al-’Ammah (objectives general al-Qur'an), which contains the mission of al-Qur'an in efforts to maintain the social system and order of human life. Ibn ‘Ashur's idea regarding the reorientation of the Maqasid theory has succeeded in changing the paradigm of the conservative group so that educational reforms at Zaytunah University can be realized. The main factor that shaped the idea of reorienting maqasid towards reformist thinking was the influence of the Muslim reformist movement and the movement against French colonialism.
The Surfactin-Like Lipopeptides From Bacillus spp.: Natural Biodiversity and Synthetic Biology for a Broader Application Range
Authors: Théatre Ariane , Cano-Prieto Carolina , Bartolini Marco , Laurin Yoann , Deleu Magali , Niehren Joachim , Fida Tarik , Gerbinet Saïcha , Alanjary Mohammad , Medema Marnix H. , Léonard Angélique , Lins Laurence , Arabolaza Ana , Gramajo Hugo , Gross Harald , Jacques Philippe
Published: March 2021

Surfactin is a lipoheptapeptide produced by severalBacillusspecies and identified for the first time in 1969. At first, the biosynthesis of this remarkable biosurfactant was described in this review. The peptide moiety of the surfactin is synthesized using huge multienzymatic proteins called NonRibosomal Peptide Synthetases. This mechanism is responsible for the peptide biodiversity of the members of the surfactin family. In addition, on the fatty acid side, fifteen different isoforms (from C12 to C17) can be incorporated so increasing the number of the surfactin-like biomolecules. The review also highlights the last development in metabolic modeling and engineering and in synthetic biology to direct surfactin biosynthesis but also to generate novel derivatives. This large set of different biomolecules leads to a broad spectrum of physico-chemical properties and biological activities. The last parts of the review summarized the numerous studies related to the production processes optimization as well as the approaches developed to increase the surfactin productivity ofBacilluscells taking into account the different steps of its biosynthesis from gene transcription to surfactin degradation in the culture medium.
Tissue Engineering for the Insertions of Tendons and Ligaments: An Overview of Electrospun Biomaterials and Structures
Authors: Sensini Alberto , Massafra Gabriele , Gotti Carlo , Zucchelli Andrea , Cristofolini Luca
Published: March 2021

The musculoskeletal system is composed by hard and soft tissue. These tissues are characterized by a wide range of mechanical properties that cause a progressive transition from one to the other. These material gradients are mandatory to reduce stress concentrations at the junction site. Nature has answered to this topic developing optimized interfaces, which enable a physiological transmission of load in a wide area over the junction. The interfaces connecting tendons and ligaments to bones are called entheses, while the ones between tendons and muscles are named myotendinous junctions. Several injuries can affect muscles, bones, tendons, or ligaments, and they often occur at the junction sites. For this reason, the main aim of the innovative field of the interfacial tissue engineering is to produce scaffolds with biomaterial gradients and mechanical properties to guide the cell growth and differentiation. Among the several strategies explored to mimic these tissues, the electrospinning technique is one of the most promising, allowing to generate polymeric nanofibers similar to the musculoskeletal extracellular matrix. Thanks to its extreme versatility, electrospinning has allowed the production of sophisticated scaffolds suitable for the regeneration of both the entheses and the myotendinous junctions. The aim of this review is to analyze the most relevant studies that applied electrospinning to produce scaffolds for the regeneration of the enthesis and the myotendinous junction, giving a comprehensive overview on the progress made in the field, in particular focusing on the electrospinning strategies to produce these scaffolds and their mechanical, in vitro, and in vivo outcomes.
Platelet-Derived Extracellular Vesicles Increase Col8a1 Secretion and Vascular Stiffness in Intimal Injury
Authors: Bao Han , Li Zi-Tong , Xu Lei-Han , Su Tong-Yue , Han Yue , Bao Min , Liu Ze , Fan Yang-Jing , Lou Yue , Chen Yi , Jiang Zong-Lai , Gong Xiao-Bo , Qi Ying-Xin
Published: March 2021

The arterial mechanical microenvironment, including stiffness, is a crucial pathophysiological feature of vascular remodeling, such as neointimal hyperplasia after carotid endarterectomy and balloon dilatation surgeries. In this study, we examined changes in neointimal stiffness in a Sprague-Dawley rat carotid artery intimal injury model and revealed that extracellular matrix (ECM) secretion and vascular stiffness were increased. Once the endothelial layer is damaged in vivo, activated platelets adhere to the intima and may secrete platelet-derived extracellular vesicles (pEVs) and communicate with vascular smooth muscle cells (VSMCs). In vitro, pEVs stimulated VSMCs to promote collagen secretion and cell adhesion. MRNA sequencing analysis of a carotid artery intimal injury model showed that ECM factors, including col8a1, col8a2, col12a1, and elastin, were upregulated. Subsequently, ingenuity pathway analysis (IPA) was used to examine the possible signaling pathways involved in the formation of ECM, of which the Akt pathway played a central role. In vitro, pEVs activated Akt signaling through the PIP3 pathway and induced the production of Col8a1. MicroRNA (miR) sequencing of pEVs released from activated platelets revealed that 14 of the top 30 miRs in pEVs targeted PTEN, which could promote the activation of the Akt pathway. Further research showed that the most abundant miR targeting PTEN was miR-92a-3p, which promoted Col8a1 expression. Interestingly, knockdown of Col8a1 expression in vivo abrogated the increase in carotid artery stiffness and simultaneously increased the degree of neointimal hyperplasia. Our results revealed that pEVs may deliver miR-92a-3p to VSMCs to induce the production and secretion of Col8a1 via the PTEN/PIP3/Akt pathway, subsequently increasing vascular stiffness. Therefore, pEVs and key molecules may be potential therapeutic targets for treating neointimal hyperplasia.