Constrained public benefits from global catch share fisheries

2021 ◽  
Vol 118 (39) ◽  
pp. e2021580118
Author(s):  
Abdulrahman Ben-Hasan ◽  
Santiago De La Puente ◽  
Diana Flores ◽  
Michael C. Melnychuk ◽  
Emily Tivoli ◽  
...  
Keyword(s):  
Wealth Distribution ◽  
Extractive Industries ◽  
Fishing Industry ◽  
Resource Rent ◽  
Catch Shares ◽  
Public Benefits ◽  
A Value ◽  
General Welfare ◽  
Starting Point ◽  
Recovery Mechanisms

Across publicly owned natural resources, the practice of recovering financial compensation, commonly known as resource rent, from extractive industries influences wealth distribution and general welfare of society. Catch shares are the primary approach adopted to diminish the economically wasteful race to fish by allocating shares of fish quotas—public assets—to selected fishing firms. It is perceived that resource rent is concentrated within catch share fisheries, but there has been no systematic comparison of rent-charging practices with other extractive industries. Here, we estimate the global prevalence of catch share fisheries and compare rent recovery mechanisms (RRM) in the fishing industry with other extractive industries. We show that while catch share fisheries harvest 17.4 million tons (19% of global fisheries landings), with a value of 17.7 billion USD (17% of global fisheries landed value), rent charges occurred in only 5 of 18 countries with shares of fish quotas primarily allocated free of charge. When compared with other extractive industries, fishing is the only industry that consistently lacks RRM. While recovering resource rent for harvesting well-governed fishery resources represents a source of revenue to coastal states, which could be sustained indefinitely, overcharging the industry might impact fish supply. Different RRM occurred in extractive industries, though generally, rent-based charges can help avoid affecting deployment of capital and labor to harvest fish since they depend on the profitability of the operations. Our study could be a starting point for coastal states to consider adapting policies to the enhanced economic condition of the fishing industry under catch shares.

Implementasi Algoritma Dijkstra Pada Game Pacman

CCIT Journal ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 170-176
Author(s):  
Anggit Dwi Hartanto ◽  
Aji Surya Mandala ◽  
Dimas Rio P.L. ◽  
Sidiq Aminudin ◽  
Andika Yudirianto
Keyword(s):  
Artificial Intelligence ◽  
Greedy Algorithm ◽  
Dijkstra Algorithm ◽  
Testing Phase ◽  
A Value ◽  
Route Problem ◽  
Starting Point ◽  
The Greedy Algorithm

Pacman is one of the labyrinth-shaped games where this game has used artificial intelligence, artificial intelligence is composed of several algorithms that are inserted in the program and Implementation of the dijkstra algorithm as a method of solving problems that is a minimum route problem on ghost pacman, where ghost plays a role chase player. The dijkstra algorithm uses a principle similar to the greedy algorithm where it starts from the first point and the next point is connected to get to the destination, how to compare numbers starting from the starting point and then see the next node if connected then matches one path with the path). From the results of the testing phase, it was found that the dijkstra algorithm is quite good at solving the minimum route solution to pursue the player, namely by getting a value of 13 according to manual calculations

Section 5.d Introduction

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Calin GURAU ◽  
Ashok RANCHHOD
Keyword(s):  
Best Practices ◽  
Brand Strategy ◽  
Brand Experience ◽  
Creation Process ◽  
A Value ◽  
Starting Point

 The classic brand design literature presents and illustrates best practices in developing the physical, graphical and semiotic aspects of a brand. However, both practitioners and academics outline that brand design is only the starting point of the brand strategy, which has to be completed and complemented by designing and effectively managing meaningful brand experiences. The success of the brand depends on a value co-creation process in which the intentions and offerings of producers and vendors encounter, and interact with, the customer experiences of the brand and of the associated product. A brand experience designed for the customer can therefore be multi-dimensional and not just product led.

scholarly journals Bands in the secondary spectrum of hydrogen

1927 ◽  
Vol 114 (767) ◽  
pp. 293-313 ◽  
Keyword(s):  
Quantum Theory ◽  
Static Model ◽  
Moment Of Inertia ◽  
Initial Moment ◽  
A Value ◽  
Starting Point ◽  
Band Spectra ◽  
The University ◽  
Low Pressures ◽  
Complete Account

Fulcher’s discovery of bands in the secondary spectrum of hydrogen at low pressures proved the starting point of a number of investigations, including those, based on the valuable tables of Merton and Barratt, which have been carried out in the University of St. Andrews. The application of the quantum theory to these bands has been discussed by one of us (H. S. A.), by Curtis, and in particular by Richardson who, partly in association with Tanaka, has added greatly to the number of known regularities and done much to bring them into line with the theory of band spectra. Nevertheless, apart from the Fulcher system, of which Richardson has recently given a very complete account, there remains a very large number of lines which have not yet been classified. One of the present writers (I. S.) has been engaged in a study of the secondary spectrum at higher pressures, and among the regularities which have been selected by this method is a band with head at 4582·58 A. U. and shading towards the violet, which has been described in a recent communication. This band yielded an initial moment of inertia agreeing closely with a value deduced from a static model of triatomic hydrogen, H 3 . This band has since been found to be one of a large number of similar bands which it will be the purpose of this paper to describe. We shall refer to it for convenience as “Band II A , a .”

scholarly journals Numerical Modeling for Simulation of Compaction of Refractory Materials for Secondary Steelmaking

Materials ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 224 ◽  
Author(s):  
Cristina Ramírez-Aragón ◽  
Joaquín Ordieres-Meré ◽  
Fernando Alba-Elías ◽  
Ana González-Marcos
Keyword(s):  
Influential Factors ◽  
Maximum Force ◽  
Refractory Materials ◽  
Cohesion Energy ◽  
Final Shape ◽  
A Value ◽  
Starting Point ◽  
Two Factors ◽  
Contact Models

The purpose of this work is to simulate the powder compaction of refractory materials, using the discrete element method (DEM). The capability of two cohesive contact models, implemented in different DEM packages, to simulate the compaction of a mixture of two refractory materials (dead burnt magnesia (MgO) and calcined alumina (Al2O3)) was analyzed, and the simulation results were compared with experimental data. The maximum force applied by the punch and the porosity and final shape quality of the compact were examined. As a starting point, the influence of Young’s modulus (E), the cohesion energy density (CED), and the diameter of the Al2O3 particles (D) on the results was analyzed. This analysis allowed to distinguish that E and CED were the most influential factors. Therefore, a more extensive examination of these two factors was performed afterward, using a fixed value of D. The analysis of the combined effect of these factors made it possible to calibrate the DEM models, and consequently, after this calibration, the compacts had an adequate final shape quality and the maximum force applied in the simulations matched with the experimental one. However, the porosity of the simulated compacts was higher than that of the real ones. To reduce the porosity of the compacts, lower values of D were also modeled. Consequently, the relative deviation of the porosity was reduced from 40–50% to 20%, using a value of D equal to 0.15 mm.

scholarly journals Comparison of Visual and Instrumental Assessment of Colour Differences on Finished Wooden Surfaces

2020 ◽  
Vol 71 (2) ◽  
pp. 201-207
Author(s):  
Matjaž Pavlič ◽  
Marko Petrič
Keyword(s):  
Colour Change ◽  
Visual Assessment ◽  
Surface Finishing ◽  
Colour Difference ◽  
Naked Eye ◽  
Instrumental Assessment ◽  
A Value ◽  
Starting Point ◽  
Measurement Results ◽  
Transparent Coating

Staining of wood with various substances and processes is an important part of surface finishing of wood. Colour differences as a result of staining and of exposure of coloured wood during its utilisation are usually evaluated by instrumental measurements. However, the measurement results can show something else compared to what our naked eye can see. Due to inhomogeneity of wood, this discrepancy can be even greater in the case of finished surfaces. The aim of our research was to evaluate distinctions between visual perception and numerically determined colour differences on differently finished wooden surfaces, to get information at which starting point the colour difference becomes visible, and to establish whether it is related to the nature of the surface. We established that the visual assessment is influenced by many factors and that there is a correlation between visual and instrumental assessments. The colour difference ΔE* of 0.5 should be considered as a value when it starts to become visible, and at the value of 2.0, observers already considered the colour difference as a different colour. It was stated that we have some tolerance in perceiving the colour change. This tolerance is more expressed in the case of transparent coating systems.

scholarly journals BUSINESS MODEL AS A VALUE MANAGEMENT TOOL

2021 ◽  
Vol 7 (2) ◽  
pp. 110-117
Author(s):  
Viktoriia Kyfyak ◽  
Andrii Antokhov ◽  
Serhii Todoriuk
Keyword(s):  
Business Model ◽  
Business Models ◽  
Business Processes ◽  
Business Development ◽  
Market Potential ◽  
Practical Significance ◽  
Management Tool ◽  
Business Modelling ◽  
A Value ◽  
Starting Point

Urgency of the research. In the crisis conditions of quarantine, business modelling has become the subject of scientific debate and demand from businesses. Applying conservative approaches to business models has caused significant financial losses and depreciation of business value. Thus, value models that reflect the assessment of various business processes in monetary terms are becoming especially relevant. Therefore, managers understand the synergetic effect of the procedural approach to business processes construction and the component contribution of business processes in achieving the goals of the enterprise. The research purpose is the improving of the scientific principles and development of a methodical approach to improvement of scientific bases and the formation of a business model from a value point of view, which has practical significance for the formation of a vision of business development. Uninvestigated parts of general matters defining. In the conditions of social crisis and fluctuations, many tools of business development and its business modelling have lost their relevance. Businesses need to find the latest approaches to business structuring and development. Research methodology. The basis of the study is a systematic analysis and a comprehensive approach to the formation of methods for building a cost-effective business model of the enterprise. Analysis and synthesis were used to characterize approaches to business modelling and determine their features, and the dialectical method was used to formulate the essence of the category “business model”. Using statistical methods allowed to get trends in the business and its modelling analysed. For a complex representation of the model, a graphical method was used (for visualization of the model) and economic mathematical modelling for the representation of the model, which has practical significance in the trends of digitalization of business processes. Results. The article substantiates that the formation of a value business model is a prerequisite for a radical rethinking of business approaches, creating the potential for its development and a starting point for innovation and change. After analysing different approaches to business modelling and to estimating the value of business on the basis of a systematic approach, a value business model is proposed, which consists of a value rhombus and a square of potential. This model includes all business processes of the enterprise and assesses the potential of business development. The mathematical expression of the components of the model that corresponds to the process approach and cost evaluation and can serve as a tool for forming a software product is proposed. The advantages of applying such a model in practice are substantiated. Practical implications. The business model and clear well-defined mechanisms of its formation are a necessary requisition for business development. Scientists are often inclined to think that a business model is a complex mathematical or econometric expression. However, in practice, it is the graphic visualization of the business structure that is important in terms of forming a deep understanding of business as a system and areas for improving its components. Value/originality. The proposed approach to business modelling can be used in the following areas: evaluation of business efficiency as an individual enterprise, and in comparison as well; assessment of investment attractiveness of the business; assessment of business potential and directions of its development; analysis of the market potential of the enterprise; strategic analysis of business development and determination of its competitive advantage; a basis for the software or systems of the Workflow class development.

scholarly journals Feedstock-Dependent Phosphate Recovery in a Pilot-Scale Hydrothermal Liquefaction Bio-Crude Production

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 379 ◽  
Author(s):  
Ekaterina Ovsyannikova ◽  
Andrea Kruse ◽  
Gero C. Becker
Keyword(s):  
Value Added ◽  
Theoretical Data ◽  
Pilot Scale ◽  
Hydrothermal Liquefaction ◽  
Liquid Fuels ◽  
Small Scale ◽  
Catalytic Upgrading ◽  
A Value ◽  
Starting Point ◽  
Full Analysis

Microalgae (Spirulina) and primary sewage sludge are considerable feedstocks for future fuel-producing biorefinery. These feedstocks have either a high fuel production potential (algae) or a particularly high appearance as waste (sludge). Both feedstocks bring high loads of nutrients (P, N) that must be addressed in sound biorefinery concepts that primarily target specific hydrocarbons, such as liquid fuels. Hydrothermal liquefaction (HTL), which produces bio-crude oil that is ready for catalytic upgrading (e.g., for jet fuel), is a useful starting point for such an approach. As technology advances from small-scale batches to pilot-scale continuous operations, the aspect of nutrient recovery must be reconsidered. This research presents a full analysis of relevant nutrient flows between the product phases of HTL for the two aforementioned feedstocks on the basis of pilot-scale data. From a partial experimentally derived mass balance, initial strategies for recovering the most relevant nutrients (P, N) were developed and proofed in laboratory-scale. The experimental and theoretical data from the pilot and laboratory scales are combined to present the proof of concept and provide the first mass balances of an HTL-based biorefinery modular operation for producing fertilizer (struvite) as a value-added product.

scholarly journals Progress and Directionality in Science, the Humanities, Society and Evolution

2016 ◽  
Vol 10 (1) ◽  
pp. 29-50
Author(s):  
Robin Attfield
Keyword(s):  
Evolutionary Epistemology ◽  
Natural Evolution ◽  
Progressive Development ◽  
A Value ◽  
Organic World ◽  
Starting Point ◽  
The World ◽  
The Creation ◽  
Nature And Society

This essay discusses progress and directionality, both in nature, in science and in society, treating as its starting-point the reflections, parallelisms and comparisons of Ruse’s essay, ‘A Threefold Parallelism for Our Time? Progressive Development in Society, Science and the Organic World’, but reaching substantially different conclusions. The essay thus ranges over progress and directionality in the world of natural evolution, in the sciences and the humanities, and in history and society. It defends non-relative progress in science and the humanities, criticising here both the approach to these disciplines of the strongly evolutionary epistemology of Hull and the more moderate evolutionary epistemology of Ruse. It further defends the possibility of progress and directionality in history and society, and also, following Rolston, in the course of evolution within the world of nature, where the kind of directionality to be found has multiple directions rather than being unilinear. Subsequently it relates conclusions about these fields to theological reflections (characteristic of Judaism, Christianity and Islam) about the creation of nature and society by a value-loving intelligence.

The relationship between intellectual capital and big data: a review

2018 ◽  
Vol 26 (3) ◽  
pp. 361-380 ◽  
Author(s):  
Federica De Santis ◽  
Claudia Presti
Keyword(s):  
Big Data ◽  
Intellectual Capital ◽  
Value Creation ◽  
Design Methodology ◽  
Content Type ◽  
A Value ◽  
Starting Point ◽  
The Relationship ◽  
Practical Implications ◽  
Decision Making Tool

PurposeThis paper aims to give an integrated framework for analysing the main opportunities and threats related to the exploitation of Big Data (BD) technologies within intellectual capital (IC) management.Design/methodology/approachBy means of a structured literature review (SLR) of the extant literature on BD and IC, the study identified distinctive opportunities and challenges of BD technologies and related them to the traditional dimensions of IC.FindingsThe advent of BD has not radically changed the risks and opportunities of IC management already highlighted in previous literature. However, it has significantly amplified their magnitude and the speed with which they manifest themselves. Thus, a revision of the traditional managerial solutions needed to face them is required.Research limitations/implicationsThe developed framework can contribute to academic discourse on BD and IC as a starting point to understanding how BD can be turned into intangible assets from a value creation perspective.Practical implicationsThe framework can also represent a useful decision-making tool for practitioners in identifying and evaluating the main opportunities and threats of an investment in BD technologies for IC management.Originality/valueThe paper responds to the call for more research on the integration of BD discourse in the fourth stage of IC research. It intends to improve this understanding of how BD technologies can be exploited to create value from an IC perspective, focussing not only on the potential of BD for creating value but also on the challenges that it poses to organizations.

scholarly journals Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs

2020 ◽  
Author(s):  
Mustafa Almahfood ◽  
Baojun Bai
Keyword(s):  
Interfacial Tension ◽  
Oil Recovery ◽  
Suspension Polymerization ◽  
Sodium Dodecyl ◽  
Polymerization Process ◽  
Core Flooding ◽  
A Value ◽  
Fixed Concentration ◽  
Oil In Water ◽  
Recovery Mechanisms

Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding.

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