scholarly journals Similarity analysis of the patterns of the monthly electric energy demand time series

2019 ◽  
Vol 84 ◽  
pp. 01008
Author(s):  
Paweł Pełka
Keyword(s):  
Time Series ◽  
Energy Demand ◽  
Electric Energy ◽  
Strong Relationship ◽  
Similarity Analysis ◽  
Chi Square ◽  
Input And Output ◽  
Sequence Patterns ◽  
Chi Square Test ◽  
Correlation Tables

The similarity analysis of the monthly electric energy demand time series sequence patterns are shown. The similarity-based forecasting models are allowed to be created because a strong relationship between input and output patterns exists. The chi-square test and the correlation tables were calculated for a few definitions of patterns.

scholarly journals Relationship of Personal Hygiene and Environmental Conditions with Complaints of Skin Disease

2021 ◽  
Vol 4 (1) ◽  
pp. 90-101
Author(s):  
Sumantri Alikhan Sains
Keyword(s):  
Environmental Conditions ◽  
Skin Diseases ◽  
Strong Relationship ◽  
Simple Random Sampling ◽  
Personal Hygiene ◽  
Chi Square ◽  
Natural Lighting ◽  
Chi Square Test ◽  
Relationship Of ◽  
The Village

Based on data from the Tikep Health Center, for the last three years Waturempe Village has become the village with the highest incidence of skin diseases and accounts for almost 50% of skin diseases. The aim of this study was to determine the relationship between personal hygiene and environmental conditions in Waturempe Village. The population in this study were all heads who live in Waturempe Village as many as 120 heads of families (KK). The sample size was 92 respondents, taken by simple random sampling. The data were obtained using a questionnaire then analyzed descriptively and inferentially using the chi square test. The results showed that there was a strong relationship between personal hygiene (X²hit=39,21 2> X²tab = 3,841), moisture (X²hit=36,655 > X²tab=3,841), temperature (X²hit=45,126 > X²tab=3,841), natural lighting (X²hit=29,362> X²tab=3,841), and occupancy density (X²hit=27,273 > X²tab=3,841) with complaints of skin diseases. There was a moderate relationship between water quality and complaints of skin diseases (X²hit=19,354 > X²tab=3,841). It is expected that the community always maintains personal hygiene and improves condition of the home environment and is always aware of the transmission of skin diseases.

scholarly journals The Knowledge, Attitude, and Behavior of Hospitalized Patients' Families in the Effort to Prevent COVID-19

2021 ◽  
Author(s):  
Anies Dewi Wirati Indraswari ◽  
Abdul Aziz ◽  
Meircurius Dwi Condro Surboyo
Keyword(s):  
Strong Relationship ◽  
Cross Sectional Study ◽  
Hospitalized Patients ◽  
Chi Square ◽  
Cross Sectional ◽  
Chi Square Test ◽  
Knowledge And Attitude ◽  
The Right ◽  
And Behavior ◽  
The Relationship

Abstract Introduction The coronavirus disease-2019 (COVID-19) pandemic has also hit Indonesia. Until September 2020, cases continued to increase with the highest number in Jakarta. The right behavior needs to be followed to prevent COVID-19; this aspect has a strong relationship with knowledge and attitude. This study aimed to analyze the relationship between the knowledge, attitudes, and behavior of hospitalized patients' families in Fatmawati Hospital, Jakarta, in an effort to prevent COVID-19. Materials and Methods A cross-sectional study was conducted on 300 respondents using a self-administered questionnaire to assess their knowledge, attitude, and behavior about COVID-19. The relationship between knowledge, attitude, and behavior was analyzed using the chi-square test with p < 0.05. Results Most of the participants responded to the questionnaire showing a good knowledge, attitude, and behavior related to the efforts to prevent COVID-19. No relationship was present between knowledge, attitude, and behavior in an effort to prevent COVID-19 (p = 0.414 and p = 0.165). Conclusion The hospitalized patients' families exhibited an adequate level of knowledge, attitude, and preventive behaviors toward COVID-19.

Measuring electric energy efficiency in Portuguese households

2015 ◽  
Vol 26 (3) ◽  
pp. 407-422 ◽  
Author(s):  
Thomas Weyman-Jones ◽  
Júlia Mendonça Boucinha ◽  
Catarina Feteira Inácio
Keyword(s):  
Time Series ◽  
Energy Efficiency ◽  
Energy Demand ◽  
Energy Use ◽  
Time Series Data ◽  
Electric Energy ◽  
Electrical Energy ◽  
Series Data ◽  
Data Set ◽  
Content Type

Purpose – There is a great interest from the European Union in measuring the efficiency of energy use in households, and this is an area where EDP has done research in both data collection and methodology. This paper reports on a survey of electric energy use in Portuguese households, and reviews and extends the analysis of how efficiently households use electrical energy. The purpose of this paper is to evaluate household electrical energy efficiency in different regions using econometric analysis of the survey data. In addition, the same methodology was applied to a time-series data set, to evaluate recent developments in energy efficiency. Design/methodology/approach – The paper describes the application to Portuguese households of a new approach to evaluate energy efficiency, developed by Filippini and Hunt (2011, 2012) in which an econometric energy demand model was estimated to control for exogenous variables determining energy demand. The variation in energy efficiency over time and space could then be estimated by applying econometric efficiency analysis to determine the variation in energy efficiency. Findings – The results obtained allowed the identification of priority regions and consumer bands to reduce inefficiency in electricity consumption. The time-series data set shows that the expected electricity savings from the efficiency measures recently introduced by official authorities were fully realized. Research limitations/implications – This approach gives some guidance on how to introduce electricity saving measures in a more cost effective way. Originality/value – This paper outlines a new procedure for developing useful tools for modelling energy efficiency.

scholarly journals HUBUNGAN ASPEK SOSIAL DENGAN KEPUTUSAN NELAYAN DALAM PEMASARAN HASIL PERIKANAN TANGKAP DI KABUPATEN TANJUNG JABUNG BARAT

2017 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Asmaida Asmaida
Keyword(s):  
Strong Relationship ◽  
Survey Method ◽  
Knowledge Level ◽  
Chi Square ◽  
Relationship Closeness ◽  
Marketing Decision ◽  
Chi Square Test ◽  
Product Marketing ◽  
The Relationship

Abstract This study aims to find out fishermen descrition involving :1) relationship between knowledge and product marketing decision. 2) The relation between trust and their decision in product marketing. Survey method was used in this research  on two districts selected purposively. Chi Square test was used to know the relation between knowledge and trust with . produk marketing decision, hence the relationship closeness was calculated by its contingency degree. The results of this reserch  showed: 1) there was a significantlty correlation between knowledge and product marketing decision, (χ2 (32,143)> χ2table (3,481) at α =5%), with strong relationship (0.43). 2) there was a significanttly relationship between the trush level with the . product marketing decision (χ2 (9,964) > χ2tabel (3,481) at α= 5%,, but had  less strong relationship closeness (0,255).Keywords: Knowledge Level, trush Level, Decision of Fisherman AbstrakPenelitian ini bertujuan untuk melihat : 1) Hubungan pengetahuan dengan keputusan dalam pemasaran hasil perikanan tangkap. 2) Hubungan kepercayaan dengan keputusan dalam pemasaran hasil perikanan tangkap. Metode yang digunakan dalam penelitian ini adalah metode survei terhadap dua kecamatan di Kabupaten Tanjung Jabung Barat yang dipilih secara purposif. Dalam penelitian ini uji Chi Square, digunakan untuk melihat hubungan antara pengetahuan dan kepercayaan dengan keputusan dalam pemasaran hasil produk yang selanjutnya keeratan hubungan  dapat terlihat dengan menghitung derajat kontingensinya. Hasil penelitian menunjukan : 1) terdapat hubungan yang nyata antara pengetahuan dengan keputusan dalam pemasaran hasil perikanan tangkap, dimana nilai χ2hit (32,143) > χ2tabel (3,481) pada derajat kesempurnaan 95%, dengan memiliki derajat keeratan hubungan yang kuat (0,43).  2) terdapat hubungan yang signifikan antara tingkat kepercayaan dengan keputusan pemasaran produk dalam pemasaran hasil produk (χ2 (9,964) ≥ χ2tabel (3,481)) pada α= 5%, dengan  keeratan hubungan yang kurang kuat (0,255).Kata Kunci : Tingkat Pengetahuan, Tingkat Kepercayaan, Keputusan Nelayan Tangkap

scholarly journals Países mais Transparentes são mais Democráticos?

2021 ◽  
Vol 24 (1) ◽  
pp. 130
Author(s):  
Rodrigo Silva Diniz Leroy ◽  
Antônio Carlos Brunozi Júnior ◽  
Lucimar Antônio Cabral de Ávila
Keyword(s):  
Negative Relationship ◽  
Strong Relationship ◽  
Fundamental Principle ◽  
Chi Square ◽  
Fiscal Transparency ◽  
Democratic State ◽  
Chi Square Test ◽  
Exploratory Data ◽  
The Relationship ◽  
Local Levels

Objective: to evaluate the relationship between fiscal transparency and the degree of democracy of countries.Method: to measure the proxies, the Open Budget Index and Democracy Index indicators were used, with data from 2006 to 2019, which were evaluated through Exploratory Data Analysis, Correlation test and Chi-square test of independence.Results: in general, there is a significant, positive and strong relationship between fiscal transparency and the degree of democracy of countries, especially when countries with distinct performances are grouped together. However, this relationship can exhibit very distinct behavior, depending on the region in which the country is located.Originality/Relevance: there is a higher incidence of transparency studies at regional and local levels, to the detriment of transnational investigations. In addition, understanding transparency as a fundamental principle for the consolidation of a Democratic State, it is expected that there will be a direct relationship between the measured variables. However, we highlight the recent contradictory findings of Arapis and Reitano (2018), who found a negative relationship between these two indicators, contrary to the theory and previous literature on the subject.Theoretical/methodological contributions: as established by the literature, the findings shown here are sufficient to disagree with the conclusions of Arapis and Reitano (2018), and confirm that more democratic countries tend to have greater transparency regarding their budget information.Social contributions/for management: tax transparency is an important instrument of social control in a democratic society, however, from a certain degree of democracy, there are no significant differences in tax transparency rates between countries.

scholarly journals PROMOTING SUSTAINABLE TRAVEL BEHAVIOR THROUGH TRANSPORT POLICY MEASURES

2017 ◽  
Vol 15 ◽  
Author(s):  
Na'asah Nasrudin ◽  
Yusfida Ayu Abdullah ◽  
Oliver Ling Hoon Leh
Keyword(s):  
Public Transport ◽  
Travel Behavior ◽  
Strong Relationship ◽  
Travel Behaviour ◽  
Sustainable Transportation ◽  
Transport Policy ◽  
Chi Square ◽  
Chi Square Test ◽  
Policy Measures ◽  
Willingness To Use

This paper examines how transport policy measures have influenced travel behaviour to promote sustainable transportation. Data were collected through a survey on 384 vehicle users to represent the 36 sections of Shah Alam, Selangor. This paper also studied the readiness of an urban population to reduce car usage. Maj ority of the respondents stated that the increase in petrol and toll prices would be the key factors to reduce car use, and more provision of public transport would encourage them to use public transport. However, Chi-square test showed that the willingness of the respondents to use public transport has a strong relationship with the frequency of driving a vehicle. The level of willingness to use public transport is lower when a car is used more frequently. Results also suggested that the majority of the respondents were not ready to consider cycling and walking as alternatives.

scholarly journals Genetic characterization and molecular mapping of novel chlorophyll deficiency gene in air-cured tobacco (Nicotiana tabacum L.)

Genetika ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 77-86
Author(s):  
Zeinalabedin Shahadati-Moghaddam ◽  
Danial Kahrizi ◽  
Elham Kazemi
Keyword(s):  
Chlorophyll Content ◽  
Molecular Mapping ◽  
Strong Relationship ◽  
Chi Square ◽  
Chlorophyll Deficiency ◽  
Chlorophyll Contents ◽  
Chi Square Test ◽  
Deficiency Gene ◽  
F2 Generation ◽  
High Chlorophyll Content

This study was performed to genetical and morphological investigation of a novel chlorophyll deficiency gene in tobacco leaf. One low chlorophyll content (LCC) variety (Urumieh 2) and high chlorophyll content (HCC) variety (Burley Ree 103) from the Burley type was crossed and the F2 generation was grown on the field. One hundred plants were selected, contained low and high chlorophyll content. These plants were sampled and DNA was extracted. Sixty RAPD primers were tested on parents, LCC and HCC Bulks based on Bulk Segregant Analysis (BSA). Chi-square test confirmed the monogenic segregation. Regresion analysis showed that there was strong relationship between greenness degree and chlorophyll contents. Four primers (OPE17, OPC09, OPB08 and OPR02) showed polymorphism and after the test on 97 samples from the F2 generation two markers were selected (OPB08-1050 and OPC09-1900). That showed 15.9 and 10.8 CM distance from chlorophyll locus respectively.

scholarly journals PROMOTING SUSTAINABLE TRAVEL BEHAVIOR THROUGH TRANSPORT POLICY MEASURES

2017 ◽  
Vol 16 (6) ◽  
Author(s):  
Na'sah Nasrudin ◽  
Yusfida Ayu Abdullah ◽  
Oliver Ling Hoon Leh
Keyword(s):  
Public Transport ◽  
Travel Behavior ◽  
Strong Relationship ◽  
Travel Behaviour ◽  
Sustainable Transportation ◽  
Transport Policy ◽  
Chi Square ◽  
Chi Square Test ◽  
Policy Measures ◽  
Willingness To Use

This paper examines how transport policy measures have influenced travel behaviour to promote sustainable transportation. Data were collected through a survey on 384 vehicle users to represent the 36 sections of Shah Alam, Selangor. This paper also studied the readiness of an urban population to reduce car usage. Maj ority of the respondents stated that the increase in petrol and toll prices would be the key factors to reduce car use, and more provision of public transport would encourage them to use public transport. However, Chi-square test showed that the willingness of the respondents to use public transport has a strong relationship with the frequency of driving a vehicle. The level of willingness to use public transport is lower when a car is used more frequently. Results also suggested that the majority of the respondents were not ready to consider cycling and walking as alternatives.

scholarly journals Time-Series Prediction: Application to the Short-Term Electric Energy Demand

2004 ◽  
pp. 577-586 ◽  
Author(s):  
Alicia Troncoso Lora ◽  
Jesús Manuel Riquelme Santos ◽  
José Cristóbal Riquelme ◽  
Antonio Gómez Expósito ◽  
José Luís Martínez Ramos
Keyword(s):  
Time Series ◽  
Energy Demand ◽  
Time Series Prediction ◽  
Electric Energy ◽  
Short Term
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