scholarly journals Selectivity of a fishing gear used in the catch of Anomalocardia flexuosa in the Northeast of Brazil

2020 ◽  
Vol 50 (8) ◽  
Author(s):  
Severino Adriano de Oliveira Lima ◽  
Humber Agrelli Andrade ◽  
Alfredo Olivera Gálvez
Keyword(s):  
Logistic Regression ◽  
Bayesian Approach ◽  
Reference Value ◽  
The State ◽  
Fishing Gear ◽  
Selectivity Estimation ◽  
The World ◽  
The Bayesian Approach

ABSTRACT: A type of dredge was introduced as fishing gear along the extractive bank of Mangue Seco - PE from which the largest annual catch of Anomalocardia flexuosa in the world is extracted. This study was carried out with the objective of estimating the selectivity of the new fishing gear and quantitatively evaluating the length classes most compromised by the catches, especially considering 20 mm as the reference value. Specimens larger than this size are most likely to be mature. For the selectivity estimation, the methodology using codends (16 or 20 mm) and small meshed cover (2 mm) was used. To estimate the selectivity parameters, a logistic regression and the Bayesian approach were used. The transition between the state in which the specimen is invulnerable to the fishing gear and vulnerable occurs between 10 and 18 mm, using a 16 mm mesh, and using a 20 mm mesh, this transition is between 14 and 20 mm. Dredgers with 16 mm and 20 mm mesh compromise a large proportion of specimens smaller than 20 mm. If the intention is to protect this part of the population, measures such as total restriction of the 16 mm mesh and use of the 20 mm mesh should be necessary only in the months of less catching incidences, or increasing the mesh to 25 mm.

A Predictive Bayesian Approach to Multistate Reliability Analysis

2003 ◽  
Vol 10 (03) ◽  
pp. 221-234 ◽  
Author(s):  
T. Aven ◽  
A. Hjorteland
Keyword(s):  
Reliability Analysis ◽  
Bayesian Approach ◽  
Probability Models ◽  
Bayesian Paradigm ◽  
Bayesian Procedures ◽  
Starting Point ◽  
The World ◽  
The Bayesian Approach

In this paper we discuss how to implement a Bayesian thinking for multistate reliability analysis. The Bayesian paradigm comprises a unified and consistent framework for analysing and expressing reliability, but in our view the standard Bayesian procedures gives too much emphasis on probability models and inference on fictional parameters. We believe that there is a need for a rethinking on how to implement the Bayesian approach, and in this paper we present and discuss such a rethinking for multistate reliability analysis. The starting point of the analysis should be observable quantities, expressing states of the world, not fictional parameters.

Evaluation of the financial condition of companies after the announcement of arrangement bankruptcy: application of the classical and Bayesian logistic regression

2020 ◽  
Vol 67 (1) ◽  
pp. 5-32
Author(s):  
Barbara Pawełek ◽  
Jadwiga Kostrzewska ◽  
Maciej Kostrzewski ◽  
Krzysztof Gałuszka
Keyword(s):  
Logistic Regression ◽  
Regression Model ◽  
Construction Industry ◽  
Bayesian Approach ◽  
Logistic Regression Model ◽  
Likelihood Method ◽  
Logistic Regression Models ◽  
Financial Condition ◽  
Bayesian Logistic Regression ◽  
The Bayesian Approach

The aim of this paper is to present the results of an assessment of the financial condition of companies from the construction industry after the announcement of arrangement bankruptcy, in comparison to the condition of healthy companies. The logistic regression model estimated by means of the maximum likelihood method and the Bayesian approach were used. The first achievement of our study is the assessment of the financial condition of companies from the construction industry after the announcement of bankruptcy. The second achievement is the application of an approach combining the classical and Bayesian logistic regression models to assess the financial condition of companies in the years following the declaration of bankruptcy, and the presentation of the benefits of such a combination. The analysis described in the paper, carried out in most part by means of the ML logistic regression model, was supplemented with information yielded by the application of the Bayesian approach. In particular, the analysis of the shape of the posterior distribution of the repeat bankruptcy probability makes it possible, in some cases, to observe that the financial condition of a company is not clear, despite clear assessments made on the basis of the point estimations.

Bayesianism: Objections and Rebuttals

2021 ◽  
pp. 267-286
Author(s):  
Norman Fenton ◽  
David Lagnado
Keyword(s):  
Bayesian Networks ◽  
Bayesian Network ◽  
Bayesian Approach ◽  
Legal Reasoning ◽  
Statistical Evidence ◽  
Subjective Measure ◽  
Probability Judgments ◽  
Legal Case ◽  
The World ◽  
The Bayesian Approach

While the laws of probability are rarely disputed, the question of how we should interpret probability judgments is less straightforward. Broadly, there are two ways to conceive of probability—either as an objective feature of the world, or as a subjective measure of our uncertainty. Both notions have their place in science, but it is the latter subjective notion (the Bayesian approach) that is crucial in legal reasoning. This chapter explains the advantages of using Bayesian networks in adjudicative factfinding. It addresses a number of common objections to the Bayesian approach, such as “There is no such thing as a probability of a single specified event”; “The Bayesian approach only works with statistical evidence”; “The Bayesian approach is too difficult for legal factfinders to comprehend”; and “A Bayesian network can never capture the full complexity of a legal case.” Fenton and Lagnado offer rebuttals to each of these objections.

scholarly journals Analysis of a dose-response assay in Scaptotrigona bipunctata bees, Lepeletier, 1836 (Hymenoptera: Apidae) using the logistic regression model under the Bayesian approach

2021 ◽  
Vol 43 ◽  
pp. e57781
Author(s):  
Breno Gabriel da Silva ◽  
Paula Ribeiro Santos ◽  
Cristian Marcelo Villegas Lobos ◽  
Tamiris de Oliveira Diniz ◽  
Naiara Climas Pereira ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Regression Model ◽  
Bayesian Approach ◽  
Dose Response ◽  
Lead Time ◽  
Logistic Regression Model ◽  
Prior Information ◽  
Alternative Approach ◽  
Dose Response Study ◽  
The Bayesian Approach

This paper shows the results of a dose-response study in Scaptotrigona bipunctata bees, Lepeletier, 1836 (Hymenoptera: Apidae) exposed to the insecticide Fastac Duo. The aim was to evaluate the lethal concentration that causes the death of 50% of bees (LC50) and investigate the odd of mortality after exposure to different concentrations, using the logistic regression model under the Bayesian approach. In this approach, it is possible to incorporate a prior information and gives more accurate inferential results. Three independent dose-response experiments were analyzed, dissimilar in their lead time according to guidelines from the Organisation for Economic Co-operation and Development (OECD), in which each assay contained four replicates at the concentration levels investigated, including control. Observing exposure to the agrochemical, it was identified that the higher the concentration, the greater the odd of mortality. Regarding the estimated lethal concentrations for each experiment, the following values were found, 0.03 g a.i. L-1, for 24 hours, 0.04 g a.i. L-1, for 48 hours and 0.06 g a.i. L-1 for 72 hours, showing that in experiments with longer exposure times there was an increase in LC50. Concluding, the study showed an alternative approach to classical methods for dose-response studies in Scaptotrigona bipunctata bees exposed to the insecticide Fastac Duo.

TOURIST BUSINESS DEVELOPMENT IN UKRAINE

2019 ◽  
pp. 39-46
Author(s):  
Stefania Mosiuk ◽  
Igor Mosiuk ◽  
Vladimir Mosiuk
Keyword(s):  
National Economy ◽  
Methodological Approach ◽  
Business Development ◽  
Tourism Industry ◽  
The State ◽  
Complete Analysis ◽  
Resource Potential ◽  
The World ◽  
Potential Resource ◽  
Favorable Conditions

The purpose of the article is to analyze and substantiate the development of tourism business in Ukraine as a priority component of the national economy. The methodology of this study is to use analytical, spatial, geographical, cultural and other methods. This methodological approach provided an opportunity to carry out a complete analysis of the state of the tourism industry of the state and to draw some conclusions.The scientific novelty lies in the coverage of the real and potential resource potential for the development of the recreational and tourism sphere in Ukraine, detailing the measures for the country ‘s entry into the world tourist market. Conclusions. Analyzing the state and prospects of tourism business development in Ukraine, it should be noted that this industry is one of the priority areas for improving the economy of the country. Historical, cultural – ethnographic, gastronomic, sanatorium and resort potentials of the country will lead the country into world leaders of the tourism industry when creating favorable conditions for investment and proper marketing.

The World Opened to Everyone. The Main Library of Krasnoyarsk Region has Celebrated 75-year Anniversary

2010 ◽  
pp. 99-100
Author(s):  
Julia N. Shubnikova
Keyword(s):  
Russian Federation ◽  
The State ◽  
Krasnoyarsk Region ◽  
The World ◽  
The Russian Federation ◽  
Krasnodar Region

On the State Universal Scientific Library of the Krasnodar region, which is one of the largest regional libraries in the Russian Federation.

Digital Economy: New Opportunities and Threats for the Development of the World Economy

2018 ◽  
Vol 11 (2) ◽  
pp. 18-26 ◽  
Author(s):  
I. A. Strelkova
Keyword(s):  
World Economy ◽  
Practical Experience ◽  
Business Environment ◽  
Digital Economy ◽  
The State ◽  
Market Exchange ◽  
Country Level ◽  
The World ◽  
Business Structures ◽  
Definition Of

The paper examines various approaches to the definition of the term «digital economy» in the scientific and business environment along with factors and forms of its development in different countries taking into account the specifics of the current stage of the Russian economy, which is a matter of particular importance in seeking new sources of the world economy growth. The subject of the research is opportunities and threats inherent in the process of digitalization of economies and their impact on the operation of international and national markets as well as the development of the world economy as a whole. The purpose of the paper was to analyze the practical experience in the formation and development of the digital economy in foreign countries and Russia and identify the changes it brings to the activities of state institutions and business structures, established rules of market exchange, the process of promotion and use of innovations. All the above made it possible to determine the country-level specifics of the digital economy evolution reveal the contradictory nature of its manifestations and justify the necessity for active participation of the state in stimulation and support of potentially promising digital innovations in various sectors of the economy. It is concluded that the level of the digital economy development depends on the real-sector performance, the maturity of markets, the state of the national economy. It is highlighted that the criteria for a comprehensive assessment of the results of the economy digitalization must be developed.

KEY ASPECTS OF TRANSFORMATION OF THE STATE AUTHORITIES IN THE WORLD AND TO THE MODERN SOVERUM UKRAINE: A JOINT AND PERSONALITY

2018 ◽  
Vol 1 (11) ◽  
pp. 164-174
Author(s):  
Оlena Fedorіvna Caracasidi
Keyword(s):  
Separation Of Powers ◽  
Human Life ◽  
State Power ◽  
The State ◽  
Public Power ◽  
The People ◽  
Large Numbers ◽  
The World ◽  
Distribution Of Power ◽  
Key Aspects

The article deals with the fundamental, inherent in most of the countries of the world transformation of state power, its formation, functioning and division between the main branches as a result of the decentralization of such power, its subsidiarity. Attention is drawn to the specifics of state power, its func- tional features in the conditions of sovereignty of the states, their interconnec- tion. It is emphasized that the nature of the state power is connected with the nature of the political system of the state, with the form of government and many other aspects of a fundamental nature.It is analyzed that in the middle of national states the questions of legitima- cy, sovereignty of transparency of state power, its formation are acutely raised. Concerning the practical functioning of state power, a deeper study now needs a problem of separation of powers and the distribution of power. The use of this principle, which ensures the real subsidiarity of the authorities, the formation of more effective, responsible democratic relations between state power and civil society, is the first priority of the transformation of state power in the conditions of modern transformations of countries and societies. It is substantiated that the research of these problems will open up much wider opportunities for the provi- sion of state power not as a center authority, but also as a leading political structure but as a power of the people and the community. In the context of global democratization processes, such processes are crucial for a more humanistic and civilized arrangement of human life. It is noted that local self-government, as a specific form of public power, is also characterized by an expressive feature of a special subject of power (territorial community) as a set of large numbers of people; joint communal property; tax system, etc.

Review of the state of the world market of drons and their application for agriculture

2019 ◽  
Vol 7 (3) ◽  
pp. 183-195 ◽  
Author(s):  
Anna Shevchenko ◽  
Andrey Migachev
Keyword(s):  
World Market ◽  
The State ◽  
The World
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