690 research outputs found

    Investment Behaviour and Capacity Adjustment in Fisheries: A Survey of the Literature

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    This article provides a survey of the economic literature on investment behaviour and capacity adjustment in fisheries. An overview of the existing theoretical and the empirical work is provided, and areas that require more work are pointed out. The survey shows that while a large body of theoretical work has been developed on the issue of capital adjustment in fisheries, relatively less attention has been granted to the theory of investment, where this becomes a separate decision to the decision about capital levels; i.e., where capital is quasi-malleable. In addition, empirical studies have been fairly limited, and more work is still needed to analyse and further investigate these issues in practical situations. There is particularly a need for more empirical studies of investment behaviour and drivers of investment behaviour at the firm level based on adequate economic data.Investment, capital adjustment, capacity, ITQs, fisheries, Public Economics, Research and Development/Tech Change/Emerging Technologies, Research Methods/ Statistical Methods, Teaching/Communication/Extension/Profession, Q22,

    Ecology of Lactobacilli in the Oral Cavity: A Review of Literature

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    Lactobacilli appear in the oral cavity during the first years of a child’s life. Their presence depends on numerous factors such as the presence of ecological niches e.g. natural anfractuosities of the teeth

    Novel parameter-based flexure bearing design method

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    A parameter study was carried out on the design variables of a flexure bearing to be used in a Stirling engine with a fixed axial displacement and a fixed outer diameter. A design method was developed in order to assist identification of the optimum bearing configuration. This was achieved through a parameter study of the bearing carried out with ANSYS®. The parameters varied were the number and the width of the arms, the thickness of the bearing, the eccentricity, the size of the starting and ending holes, and the turn angle of the spiral. Comparison was made between the different designs in terms of axial and radial stiffness, the natural frequency, and the maximum induced stresses. Moreover, the Finite Element Analysis (FEA) was compared to theoretical results for a given design. The results led to a graphical design method which assists the selection of flexure bearing geometrical parameters based on pre-determined geometric and material constraints

    Applying Text Data Analytics Techniques to Wine Reviews

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    Abstract When purchasing a bottle of wine, we usually rely on the smell and flavor descriptions from experts’ wine reviews. Just like restaurants, critics’ reviews count as a marketing strategy in the wine industry. If your wine consistently impresses the tasters and makes their top picks, there is a good chance customer will follow and buy it. A study by Friberg and Gronqvist (2012) found that the effect of a favorable review peaks in the week after publication with an increase in demand of 6 percent, and the effect remains significant for more than 20 weeks (Friberg & Grönqvist, 2012). This project is part of a student paper for a Text Data Analytics course. The goal of this study is to evaluate the description of wines provided by the tasters. The data was scraped from Wine Enthusiast (https://www.winemag.com/), a world-known American multi-channel marketer during the week of June 15th, 2017. The dataset includes fields such as the type of grapes used to make the wine, the country that the wine is from, the number of points Wine Enthusiast rated the wine on a scale of 1-100, the cost for a bottle of the wine, taster full name, description of the wine by a sommelier, etc. We used R programming to analyze the dataset. We will apply exploratory data analysis methods to find insights and interesting facts about this dataset. Specifically, we will count the number of reviews based on variety and flavors. Then, we will look at the total number of reviews by the taster. Tasters with at least 100,000 reviews can be categorized as master reviewers. We will use this knowledge to categorize reviews based on their expertise and experiences. We will also examine which variety of wine received the best score by reviewers and identify the reviewers’ favorite types of wine. We will also calculate the point distribution based on reviewers. Concerning the description column, the first step will be to pre-process and clean the text to deal with the missing values, remove the special characters, etc. We will apply descriptive text analytics techniques to understand the tasters’ reviews better. We will calculate the most frequently used words in the descriptions, as well as the most important terms based on TF-IDF. We will also apply sentiment analysis and topic modeling techniques to categorize the tasters’ reviews. Sentiment analysis enables us to extract insights from qualitative data, such as wine reviews. These insights can be used by the winemaker to respond to their clients’ needs. By detecting positive, neutral, and negative opinions within the text, we can understand how tasters feel about a particular wine and make data-driven decisions. We will identify the polarity of reviews based on the taster’s name, the varieties of wine, and the country. Polarity in sentiment analysis refers to identifying sentiment orientation (positive, neutral, and negative). Using it for our reviews could potentially yield exciting results. Finally, we will use classification methods to identify the common topics in the tasters’ wine descriptions

    How will veterinarians communicate tomorrow ? Tendencies for practitioners and veterinary profession

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    Les vétérinaires français sont désormais autorisés par le code de déontologie à communiquer plus largement. Cette modification importante pour la profession intervient en même temps qu’une transformation de très grande ampleur de la communication des entreprises et des institutions à l’échelle mondiale sous l’impulsion d’internet. Deux nouveaux concepts majeurs semblent devoir s’appliquer à la communication des vétérinaires, l’expérience client et le human to human. Dorénavant, les propriétaires d’animaux attendent de leur vétérinaire qu’il leur propose non seulement un service efficient, mais aussi une expérience émotionnelle globale positive élargie à l’ensemble des contacts réels ou virtuels en amont et en aval de la consultation. Pour répondre à ce défi, le concept d’une communication personnalisée, centrée sur la relation humaine, d’individu à individu, semble s’imposer. Comme les entreprises, les institutions et associations professionnelles sont confrontées aux mêmes enjeux, qui requièrent les mêmes solutions.French veterinarians are now allowed by the Code of ethics to communicate more. This important change for the profession comes at the same time as a massive transformation of global corporate and institutional communication driven by the internet. Two major new concepts seem to apply to veterinary communication, customer experience and human to human. Now, pet owners expect veterinarians to offer them not only an efficient service, but also a positive overall emotional experience that extends to all real or virtual contacts upstream and downstream of the veterinary consultation. To meet this challenge, the concept of a personalized communication, centered on the human relation, from human to human, seems to impose itself. Like veterinarian companies, professional institutions and associations face the same challenges, which require the same solutions

    À propos du centenaire de la mort de Constantin Pecqueur (1887-1987). Jalons pour une biographie scientifique 

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