Yields variability as a determinant of production risk in agriculture

2021 ◽  
Vol 66 (11) ◽  
pp. 48-63
Author(s):  
Adam Smolik
Keyword(s):  
Coefficient Of Variation ◽  
Agricultural Activity ◽  
Individual Data ◽  
Sources Of Information ◽  
Statistical Parameters ◽  
Production Risk ◽  
Farm Accountancy Data Network ◽  
Commercial Farms ◽  
Statistical Yearbook ◽  
Different Sources

Agricultural activity is exposed to a number of adverse external factors known as production risks, which affect the quantity and value of production. One of the measures of production risk assessment in crops production is yields variability. The aim of the study is to determine the scope of the variability of the yields of selected agricultural crops on the basis of various sources of data covering the years 2015–2019. The study uses aggregated official statistics data compiled by Statistics Poland, published in the Statistical Yearbook of Agriculture, and individual data from the Polish Farm Accountancy Data Network (FADN), which takes into account commercial farms. The analysis of the differences in crops variability determined on the basis of different sources of information was carried out using basic statistical parameters: the arithmetic mean, standard deviation and the coefficient of variation. The research shows that the variability of yields in Poland depends not only on the type of crops, but also on the location of the production. Moreover, it indicates a greater stability of crops production among commercial farms when compared with farms in general. The comparison of the values of the coefficient of variation calculated from individual data with the values calculated on the basis of the average yields indicates fundamental differences which should be taken into account when applying the variation coefficient to assess production risk and, consequently, to optimise insurance tools.

Determinants Considered by Consumers for Brand Selection - with Reference to Laptops in Albania

2014 ◽  
Vol 4 (2) ◽  
Author(s):  
Margret Plloçi ◽  
Macit Koc
Keyword(s):  
Primary Data ◽  
Battery Life ◽  
Decision Making Process ◽  
Light Weight ◽  
Sources Of Information ◽  
Technical Features ◽  
The Relationship ◽  
The City ◽  
Different Sources ◽  
Core Features

Abstract Purpose of the article There is relatively a big number of brands in the market of laptops nowadays in Albania. It appears that the number of brands offered in this market could easily be compared to the number of brands in Europe and even broader. The purpose of this study is to help Albanian vendors understand the criteria that consumers take into consideration when they make the decision to purchase a laptop. Methodology/methods The research is based on the collection and the analyses of the primary data collected through interviews to people like managers or employees who work in the sector of trading laptops or in businesses like education where laptops are broadly used recently; then a survey is done through a questionnaire delivered to customers who already own and use a laptop and customers who are potential buyers of laptops. Scientific aim The aim of the research is to identify if there are any relationships between the demographics of the consumers and the criteria of buying a laptop; on the other hand, to find out how is the relationship between the demographics and the features of different brands. Findings The study found out that Albanian consumers have good knowledge of laptops and their brands, and they use different sources of information for making their decisions in buying a laptop; it is found that there are relationships between some demographics like age or gender and the appraisal for some attributes of the laptops like price, design and high graphics card; it is also found that some technical features and other attributes of using laptops are some of the determinants that influence the laptops’ purchases. Conclusions It is realized that one of the most important demographics of the consumers is their age. Some core features like RAM, ROM, battery life, processor quality, light weight or attributes that are connected to the purposes of using the laptop computers like practicality and mobility in using them, work and studying processes, quick access to the internet are determinant factors which influence the decision making process of purchasing a laptop. I would recommend that future researches be focused also on the relationship between the customers’ income and their preferred brand or ranking brands according to the customers’ preferences. Such studies should also extend outside the city of Tirana.

Feature-based multi-criteria recommendation system using a weighted approach with ranking correlation

2021 ◽  
Vol 25 (4) ◽  
pp. 1013-1029
Author(s):  
Zeeshan Zeeshan ◽  
Qurat ul Ain ◽  
Uzair Aslam Bhatti ◽  
Waqar Hussain Memon ◽  
Sajid Ali ◽  
...  
Keyword(s):  
Recommendation System ◽  
Sources Of Information ◽  
Multiple Features ◽  
Recommendation Algorithms ◽  
Label Correlations ◽  
Feature Based ◽  
Multicriteria Model ◽  
Implicit And Explicit ◽  
Hybrid Recommendation ◽  
Different Sources

With the increase of online businesses, recommendation algorithms are being researched a lot to facilitate the process of using the existing information. Such multi-criteria recommendation (MCRS) helps a lot the end-users to attain the required results of interest having different selective criteria – such as combinations of implicit and explicit interest indicators in the form of ranking or rankings on different matched dimensions. Current approaches typically use label correlation, by assuming that the label correlations are shared by all objects. In real-world tasks, however, different sources of information have different features. Recommendation systems are more effective if being used for making a recommendation using multiple criteria of decisions by using the correlation between the features and items content (content-based approach) or finding a similar user rating to get targeted results (Collaborative filtering). To combine these two filterings in the multicriteria model, we proposed a features-based fb-knn multi-criteria hybrid recommendation algorithm approach for getting the recommendation of the items by using multicriteria features of items and integrating those with the correlated items found in similar datasets. Ranks were assigned to each decision and then weights were computed for each decision by using the standard deviation of items to get the nearest result. For evaluation, we tested the proposed algorithm on different datasets having multiple features of information. The results demonstrate that proposed fb-knn is efficient in different types of datasets.

High-Frequency Yarn Tension Variations in Spinning

1980 ◽  
Vol 102 (1) ◽  
pp. 45-50
Author(s):  
E. Dyson ◽  
G. Afshari
Keyword(s):  
Experimental Investigation ◽  
Periodic Structure ◽  
Coefficient Of Variation ◽  
Rotational Speed ◽  
High Frequency ◽  
Ring Spinning ◽  
Statistical Parameters ◽  
Yarn Tension ◽  
Rotor Spinning

A description of an experimental investigation of the variations in yarn tension during both ring and rotor open-end spinning which have frequencies equal to, or greater than, the rotational speed of the system is given. Typical results are illustrated and discussed both in terms of statistical parameters such as the coefficient of variation and in terms of their spectra. Tension variations during rotor spinning are shown to have, in general, a much less pronounced periodic structure then the corresponding variations during ring spinning.

scholarly journals Analysis of corporate political activity strategies of the food industry: evidence from France

2018 ◽  
Vol 21 (18) ◽  
pp. 3407-3421 ◽  
Author(s):  
Melissa Mialon ◽  
Jonathan Mialon
Keyword(s):  
Public Health ◽  
Food Industry ◽  
Evidence Base ◽  
Political Activity ◽  
Health Issues ◽  
Sources Of Information ◽  
Corporate Political Activity ◽  
The Public ◽  
Health Related ◽  
Different Sources

AbstractObjectiveTo identify the corporate political activity (CPA) of major food industry actors in France.DesignWe followed an approach based on information available in the public domain. Different sources of information, freely accessible to the public, were monitored.Setting/SubjectsData were collected and analysed between March and August 2015. Five actors were selected: ANIA (Association Nationale des Industries Agroalimentaires/National Association of Agribusiness Industries); Coca-Cola; McDonald’s; Nestlé; and Carrefour.ResultsOur analysis shows that the main practices used by Coca-Cola and McDonald’s were the framing of diet and public health issues in ways favourable to the company, and their involvement in the community. ANIA primarily used the ‘information and messaging’ strategy (e.g. by promoting deregulation and shaping the evidence base on diet- and public health-related issues), as well as the ‘policy substitution’ strategy. Nestlé framed diet and public health issues, and shaped the evidence base on diet- and public health-related issues. Carrefour particularly sought involvement in the community.ConclusionsWe found that, in 2015, the food industry in France was using CPA practices that were also used by other industries in the past, such as the tobacco and alcohol industries. Because most, if not all, of these practices proved detrimental to public health when used by the tobacco industry, we propose that the precautionary principle should guide decisions when engaging or interacting with the food industry.

The yellow-legged gull as a predator of lizards in Balearic Islands

2014 ◽  
Vol 35 (2) ◽  
pp. 207-213 ◽  
Author(s):  
Valentín Pérez-Mellado ◽  
Mario Garrido ◽  
Zaida Ortega ◽  
Ana Pérez-Cembranos ◽  
Abraham Mencía
Keyword(s):  
Balearic Islands ◽  
Predation Pressure ◽  
Vertebrate Species ◽  
Sources Of Information ◽  
Mediterranean Islands ◽  
Lizard Species ◽  
Podarcis Lilfordi ◽  
Larus Michahellis ◽  
Plasticine Models ◽  
Different Sources

Lizards and gulls cohabit in several Mediterranean islands. The yellow-legged gull, Larus michahellis, was found to prey several vertebrate species. However, precise information about the interaction between gulls and other vertebrates, particularly with lizards is still scarce. The Balearic lizard, Podarcis lilfordi, shares several coastal islets with the yellow-legged gull. Using two different sources of information, we studied the interaction of both species in Colom Island (Menorca, Balearic Islands, Spain). We studied the diet of the yellow-legged gull and learnt that the Balearic lizard is not a common prey of the yellow-legged gull. On the other hand, we studied the potential predation pressure of gulls on lizards, using plasticine models of lizards. We did two different experiments from which we can conclude that yellow-legged gulls rarely attack lizards and, consequently, cannot be considered a major threat for this endemic lizard species, at least in the population under study. Finally, we obtained evidence that plasticine models can only be employed with caution to assess predation pressure of opportunistic scavengers, much as gulls are. The majority of marks on models were not the consequence of true attacks by gulls, but the result of ground exploratory behaviour of gulls in search of any edible matter. Therefore, contrary to popular belief, in the case of the yellow-legged gull, the proportion of marked models would be an indication of ground-based wandering activity, rather than a result of its predation pressure on lizards.

scholarly journals ASSESSMENT OF ATTITUDES TOWARDS IMMUNIZATION IN DIFFERENT GROUPS OF POPULATION OF THE RUSSIAN FEDERATION

2017 ◽  
pp. 98-103 ◽  
Author(s):  
N. I. Briko ◽  
A. Ya. Mindlina ◽  
R. V. Polibin ◽  
N. P. Galina ◽  
A. S. Gorokhova ◽  
...  
Keyword(s):  
Medical Students ◽  
Mass Media ◽  
Russian Federation ◽  
Positive Attitude ◽  
The Internet ◽  
Sources Of Information ◽  
Low Level ◽  
Technical Students ◽  
The Russian Federation ◽  
Different Sources

Aim. The study the attitude of population towards the necessity of vaccination. Materials and methods. The survey about the attitude towards vaccination among different groups of population was held. In total there were 1209 respondents: 1031 students of medical, humanitarian and technical universities and 178 parents of children under 2. Results. The most positive attitude towards vaccination was shown by medical students (77%) and parents (71%) and only 33% and 37% of humanitarian and technical students correspondency realize the significance of vaccination. It is worth noting that large number of people could not define their attitude to vaccination. The majority of respondents notices the lack of knowledge about vaccination wherein less than 50% of respondents get the information from doctors. The rest gets it from different sources mostly from the Internet. About 80% of respondents would prefer to get answers to their questions about vaccination in the Internet. Conclusion. The adherence of population of Russia to vaccination has a rather low level. The main reason for it is the lack ofknowledge and availability of true information about vaccination. It is necessary to use diverse sources of information to provide the population with true facts about vaccination, its significance and safety via mass media and the Internet as well.

scholarly journals THE USE OF COMMUNICATIVE APPROACH IN TEACHING READING DESCRIPTIVE TEXT

2020 ◽  
Vol 3 (1) ◽  
pp. 127
Author(s):  
Anna Robiana
Keyword(s):  
Performance Assessment ◽  
Experimental Research ◽  
Learning Process ◽  
Random Sampling ◽  
Reading Skills ◽  
Teaching Reading ◽  
Sources Of Information ◽  
Communicative Approach ◽  
Academic Year ◽  
Different Sources

Reading is central to learning process, by reading people can gain important information in this millennial era. Study reading aims to develop the reading skills that you need to find information quickly, to identify what is important in a text, to compare different sources of information and to read critically. The aim of this experimental research is to investigate the effect of communicative approach on reading competencies of 10th grade students of SMK SEHATI in the academic year of 2018/2019. It is about 60 pupilss were assigned as sample through random sampling. Data of student’s reading competencies were collected by using multiple choice of descriptive text test. The result shows there is significant effect at student’s reading comprehension. Keywords:  Communicative Approach, Performance Assessment, Reading Competency  

Injected drugs consumption in Mexico: notes for the last two decades / El consumo de drogas inyectadas en México: apuntes de las últimas dos décadas

2003 ◽  
Vol 3 (2) ◽  
Author(s):  
Nivaldo Linares Pérez
Keyword(s):  
Sources Of Information ◽  
The North ◽  
Northern Border ◽  
The Family ◽  
Careful Revision ◽  
Bibliographic Search ◽  
The Subject ◽  
The Individual ◽  
Windows 2000 ◽  
Different Sources

Objetivo: Revisar los aspectos epidemiológicos relevantes de investigaciones nacionales sobre consumo de heroína y cocaína en las dos últimas décadas, haciendo énfasis en la frontera norte de México. Material y Método: Se realizó una consulta automatizada, previo diseño teórico de búsqueda bibliográfica de trabajos sobre el tema. Se encontraron 72 materiales y tras una cuidadosa selección, quedaron 59, recuperando 83% de ellos. Para su análisis se diseñó una matriz de variables cualitativas y cuantitativas y se procesó en Excel para Windows 2000. Resultados: Sin ser un fenómeno reciente, el consumo de heroína esta alcanzando en últimas fechas proporciones considerables y diversas fuentes de información marcan esta tendencia, sobre todo en el norte del país. Asimismo el consumo de cocaína es cada vez mayor y se extiende por todo el territorio nacional en proporciones cada vez mayores según lo muestran diferentes indicadores. Comentarios: El panorama epidemiológico del consumo de heroína y cocaína es alarmante por sus repercusiones en lo individual, familiar y social y representa un reto principalmente para la planificación y funcionamiento de los servicios de salud en México. AbstractObjective: To review the relevant epidemiological aspects of national research regarding consumption of heroin and cocaine over the last two decades, with emphasis on the northern border of Mexico. Materials and Method: An automated consultation was carried out after the theoretical design of a bibliographic search for works related to the subject. 72 papers were found of which 59 were chosen after a careful revision representing 83%. For the analysis a matrix of qualitative and quantitative variables was designed and processed with Excel, Windows 2000. Results: Although the consumption of heroin is not a recent phenomenon, over the last few years it has reached such high proportions, especially in the north of the country, as many different sources of information indicate. Likewise, the consumption of cocaine is ever-growing and spreading throughout the country the same proportions, as show by several indicators. Observations: The consumption prevalence of both heroin and cocaine is alarming because its tremendous impact on the individual, the family and the society and it represents a challenge for the Mexican Health Services, particularly in planning and management. 

How Do Adolescents Obtain Health Information

2021 ◽  
pp. 190-206
Author(s):  
Inese Stars ◽  
Zanda Rubene
Keyword(s):  
Education Research ◽  
Data Analysis ◽  
Health Education ◽  
Health Information ◽  
Qualitative Interviews ◽  
Research Approach ◽  
Sources Of Information ◽  
Multimodal Texts ◽  
Active Method ◽  
Different Sources

Adolescent health literacy is a promising innovation in health education. This article reports the findings of research in the experience of adolescents in the methods they used in obtaining health information. A phenomenographic research approach was used to understand how adolescents conceptualized health information obtaining. The study examined data provided by 24 adolescents aged 13 to 16 living in Latvia. The data was collected through qualitative interviews. Phenomenographic data analysis uncovered five categories of description by adolescents in the way they perceived health information obtaining: 1. An opportunity to find out “things” regarding health; 2. The use of different sources of information to obtain health information; 3. The use of multimodal texts to obtain health information; 4. A passive method of obtaining information; and 5. An active method of obtaining information. It is important to integrate the experience of adolescents into health education research to develop a deeper understanding of the pedagogical phenomenon and to enhance health education programmes.

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