bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategic Options for the Expansion of South African Retail Businesses within Africa: Consequences on Operational Management
Authors: Dakora Edward A.N. , . AndrÃ© Slabbert
Published: January 2020

The expansion of retail companies across national borders is a global phenomenon that is becoming a reality in Africa. This phenomenon is led largely by South African retailers as they seek new markets in Africa. The continent presents both market opportunities as well as challenges. Yet there has been limited academic research on the management of the complexities faced by these retail companies. This paper examines the strategic options available to senior retail management regarding entry mode choices and the possible factors that influence management decisions as they expand their business activities into Africa. The paper also attempts to echo the consequences of such strategic decisions on operational management when it comes to managing operations abroad. It does so by employing mixed method approaches which include analysis of in-depth interviews with senior managers of five major South African retailers, and results of an online survey of retail workers in Cape Town, using the Principal Component (factor) Analysis technique in SPSS. This resulted in six broad factors which appear to provide unique insight on issues that affect the entry mode choices of South African retailers seeking new markets in Africa. The paper concludes that retail managements making this move are often caught up between management self-confidence and their ability to manage risk.
The Effects of BRICS and MATIK Counties on world Economy and Cointegration Analysis the Long Term relation With G-7 Growth Rates (1962-2012)
Authors: KARGI Bilal
Published: January 2020

In this article, long term data is analyzed for the total growth of the world economy and the growth of developed (G7) and of the rapid developing economies. BRICS countries are known countries with their meetings since 2008. Rapidly developing countries such as Mexico, Argentina, Turkey, Indonesia and Korea are defined as MATIKin thisanalysisexceptthecountriesfor BRICS meeting. Especially, the basic hypotheses of this study is that BRICS+MATIK countries whose economic shares slowly increase were compared with G-7 and the global economy, i) Help of BRICS+MATIK economies rapidly increase for the growth rate of world economy: ii)Theyâ€™re the hypotheses that BRICS+MATIK economies are cointegrated with the growth of world economy in long term. In this way, it may be possible that the help of G-7 is compared with the help of BRICS+MATIK economies for the growth of world economy. The study uses the annual data of the 1962-2012 periods. Time series analysis is used to test the hypotheses. The most important finding is that BRICS+MATIK economies affect the growth rate of world economy, and it constantly increases as statistic according to the help of G-7.The result has been acquired that World, G-7, and BRICS+MATIK economies cointegrated in the long term.
An Empirical Study of Bank Efficiency in South Africa Using the Standard and Alternative Approaches to Data Envelopment Analysis (DEA)
Authors: Erasmus Coert
Published: January 2020

The paper investigates the efficiency of the major banks of South Africa using the standard and alternative approaches to Data Envelopment Analysis (DEA). The standard DEA approach measures efficiency utilising linear averages of outputs and inputs while the alternative DEA approach utilises nonlinear averages. Individual bank efficiency scores are estimated over the period 2006 to 2012, a period that allows analysis of the efficiency of the banks during the global financial crisis of 2008 to 2009. Under both approaches the majority of the major South African banks were observed to be DEA efficient, with the alternative approach improving the efficiency scores of those banks that were DEA inefficient under the standard approach. The global financial crisis did not affect the efficiency of the majority of the banks. Since the banks were DEA efficient prior the crisis, it could be argued that their efficiency was one of the contributory factors for their resilience during the global financial crisis.
Retail Business and the Freight Industry in Shanxi Province of China: an Empirical study of Interactive Relationship
Authors: Ding Huiqiong
Published: January 2020

The fate of the retailing industry is related to the freight industry of a country. In order to enhance the pulling power that the retailing has to the freight industry, this research investigated the interactive relationship of retailing and freight industry in Shanxi Province of China. Using the software Eviews 5.0Â®, a Co-integration Model was proposed. Evaluation of the validity of the model, using the Stationary Test, Granger Causality Test and Error Correction, proved that the model proposed had the ability to repair itself. Using the model to explain the relationship between retailing and freight results further revealed that there is a long-term equilibrium relationship between the two variables. Furthermore, this study proved that in order to enhance the pulling power that retailing has to freight industry, there is a need to pay attention to the final consumption, to support retailing and to speed up the urbanization construction.
Implementation of Cooperativesâ€™ Principles on Ranked-Cooperatives, East Java 2012
Authors: Harwiki Wiwiek
Published: January 2020

The purposes of this research to identify of values and cooperativesâ€™ principles on the field, to identify roles and member participation to improving cooperatives, to identify cooperativesâ€™ performance based on cooperativesâ€™ principles, and to identify problems in order to implementing the cooperativesâ€™ principles. Samples were collected amount 52 cooperatives have been assessed as the accredited cooperatives by Small Medium Enterprise and Cooperatives Office East Java. Methodology supported this research were inventory, field survey, and data analysis. Data have been analyzed and evaluated on 2 steps: grading the defined instrument and checking the supported documents given by respondents. The research findings: Cooperativesâ€™ Principles is an abstract vision which has to spell out how these Principles are to be practiced. The Success programmes as a way to implementing Cooperativesâ€™ Principles that guiding the operation of organization. The product of all cooperatives surveyed was not specific products and need innovation products. Better service for members to survive among other cooperatives. To implement Cooperativesâ€™ Principles, there were correlations between: Management Control and Membersâ€™ Satisfaction, Boardsâ€™ Performance and Membersâ€™ Satisfaction, Well-controlled Administration and Membersâ€™ Satisfaction, Capital Structure and Membersâ€™ Satisfaction, Unit Business and Membersâ€™ Satisfaction, Training & Education and Membersâ€™ Satisfaction, Cohesiveness and Membersâ€™ Satisfaction.
The rationality of retirement preservation decisions: A conceptual model
Authors: Reyers Michelle , . DaniÃ«l Gerhardus Gouws
Published: January 2020

Low retirement savings rates, coupled with a lack of preservation of retirement funds when individuals move jobs, could have adverse repercussions on a personâ€™s ability to retire with sufficient funds. The traditional response to low preservation levels has been to impose taxes on cash withdrawals and in some cases to mandate preservation. However, without a complete understanding of the factors that drive low levels of preservation, these policy interventions might do more harm than good. This study carries out a critical, interdisciplinary literature review to construct a conceptual model of the factors which potentially lead to low preservation levels and outlines proposed interventions. The resultant model highlights the distinct differences in the drivers of rational and irrational behaviour and therefore, the distinctly different interventions required. Little is known about the rationality or otherwise of the decision making process of individuals in the retirement preservation context, however current interventions only assist if individuals display bounded willpower. It is essential that a better understanding of the decision making process is obtained to determine whether existing solutions address the problem adequately.
Household Debts-and Macroeconomic factors Nexus in the United States: A Cointegration and Vector Error Correction Approach
Authors: Moroke Ntebogang Dinah
Published: January 2020

This study applies cointegration and error correction approaches to determine the effect of macroeconomic determinants on household debt in the United States of America. Cointegration analysis provides an effective framework used for estimating and modelling relationships from time series data. Short-run and long-run cointegration models explaining the relationships between the US household debt and related macroeconomic factors are estimated. The data used covers a period of 1990 Q1 to 2013 Q1 and is sourced from the electronic data delivery system of the OECD, USA Federal Housing Finance Agency and the USA Department of the Treasury among others. SAS 9.3 version was used to obtain the results. The sample and variables were meritorious according to KMO and Cronbachâ€™s alpha. Unit root test results provided enough evidence to conclude that the series were stationary after first differencing. Further data analysis was carried out with the first lag chosen by the AIC and SBC. Three cointegrating vectors were identified and were later standardised to correctly provide parameter estimates of the vector error correction model of household debts. The model revealed some short and long-run relationships. Revealed by the model is that 1.5 % of long-run equilibrium was corrected per quarter. The results of the current study are crucial to households and policy makers. Researchers may also refer to these results.
Comparison of Researcherâ€™s Reference Management Software: Refworks, Mendeley, and EndNote
Authors: Basak Sujit Kumar
Published: January 2020

This paper aimed to present a comparison of researcherâ€™s reference management software such as RefWorks, Mendeley, and EndNote. This aim was achieved by comparing three software. The main results of this paper were concluded by comparing three software based on the experiment. The novelty of this paper is the comparison of researcherâ€™s reference management software and it has showed that Mendeley reference management software can import more data from the Google Scholar for researchers. This finding could help to know researchers to use the reference management software.
Arbeidsplassbasert barnehagelærerutdanning: studenters erfaringer med veiledning under studiet
Authors: Børve Elin , Søraunet Gunn Anita , Selmer-Olsen Maria
Published: January 2020

Artikkelens hensikt er å bidra til økt innsikt i hvordan veiledning på egen arbeidsplass erfares av studenter på arbeidsplassbasert barnehagelærerutdanning. Barnehagen er en viktig læringsarena i studietiden, og veiledning i egen barnehage skal støtte studentenes læringsprosess. Resultatene er basert på kvalitative data fra fokusgruppeintervju, og viser at studentene opplever veiledning som et betydningsfullt bidrag til egen læring. Imidlertid finner vi store variasjoner i organisering, og at rolleavklaring mellom studenter og veiledere har vært et lite artikulert tema. Spesielt synes fraværet av rolleavklaring i overgangen til studentrollen å skape utfordringer for studenten.
English abstract
English title: Work-based early childhood teacher education: How students experience mentoring during their studiesThe purpose of this article is to increase insight into how mentoring in the workplace is experienced by students in work-based early childhood teacher education. Kindergarten plays a key role as a learning environment in the course of the students, and the goal of the mentoring given here is to support the students’ learning process. The results are based on qualitative data from focus group interviews, and show that students perceive mentoring as a meaningful contribution to their learning process. However, we find large variations in the way things are organized, and the clarification of roles is a topic rarely articulated between students and mentors. In particular, the absence of such clarification in the transition to the student role seems to create challenges for the students.
Kritisk matematisk literacy i ein inquiry-basert kontekst på småskulesteget
Authors: Sikko Svein Arne , Grimeland Benedikte
Published: January 2020

Undersøkande og utforskande arbeidsmåtar (Inquiry-based learning, IBL) blir trekt fram som mogelege inngangar til læring der ein utviklar ei spørjande haldning og auka motivasjon. Matematisk literacy er ikkje eit veldefinert omgrep, men har i ulike avskuggingar og diverse kontekstar blitt halde fram og brukt knytte til kva matematikk kan bety i samfunnet. Mykje av litteraturen om IBL og matematisk literacy er sentrert om høgare klassesteg. Vi undersøkjer kva det kan tyde for elevane å vere kritiske i matematikk på dei lågaste klassestega. Data er henta frå IBL-inspirerte økter på byrjinga av andre steget der elevane jobba med addisjon med bruk av norske myntar. Vi identifiserte fleire kjenneteikn ved IBL knytte til lærar- og elevroller, læringsmiljø og klasseromskultur; og fann døme på at elevane kunne vere kritiske på måtar som er viktige for å utvikle matematisk kunnskap.
English abstract
English title: Critical mathematical literacy in an inquiry-based context in early primary schoolInquiry-based learning (IBL) has been promoted as a way of working where students develop a questioning attitude and increased motivation. Mathematical literacy is not a well-defined concept but has in different guises and several contexts been connected to the role of mathematics in society. Most literature about IBL and mathematical literacy is concerned with higher grades. We investigate what it can mean to be critical in mathematics in the lower grades. Data are from IBL-inspired sessions at the beginning of 2nd grade where students worked with addition using Norwegian coins. We identified several aspects of IBL concerning the role of the teacher and the students, learning environment and classroom culture; and found examples of students being critical in ways that are important in developing mathematical knowledge.
Gutter (menn) som slutter – om frafall i barnehagelærerutdanningen
Authors: Emilsen Kari , Lysklett Olav Bjarne , Nordli Arnt
Published: January 2020

Det er få menn som jobber med omsorg for de minste barna, både internasjonalt og nasjonalt. Et uttalt mål er å få flere menn til å velge utdanning som barnehagelærer. Nasjonalt er det høyt frafall fra barnehagelærerutdanningen, særlig blant menn. Hovedfokus i denne artikkelen er frafall fra barnehagelærerutdanningen ved DMMH satt i et kjønnsperspektiv. Tre kull studenter på hovedmodellen har svart på spørreskjema om frafall, etter første praksisperiode i første studieår. Noen av studentene som har sluttet har sendt inn et web-basert skjema om oppsigelse av studieplass, et lite utvalg av disse studentene er intervjuet. Mange studenter oppgir positive tilbakemeldinger på valg av studie, flere menn enn kvinner. Kjennskap til barnehagelæreryrket før studiestart ser ut til å være en viktig faktor for rekruttering til studiet. Dette påvirker også motivasjonen for barnehagelærerstudiet, både ved studiestart og senere i studiet. Frafallet fra studiet er størst etter første semester, men øker utover i studieforløpet. Menn slutter i noen grad oftere enn kvinner og den viktigste grunnen som oppgis er feil studievalg.
English abstract
English title: Boys (men) who leave – dropout among ECEC – teacher bachelor educationFew men are working with care for the youngest children, both internationally and nationally. The Norwegian government desires to increase the number of men who choose a career as early childhood education and care (ECEC) teachers. Nationally, there is a high dropout rate from ECEC bachelor teacher education, especially among men. The focus of this article is a gendered perspective on dropout from DMMH’s ECEC bachelor teacher education. Three cohorts of students responded to a questionnaire about dropout, after their first practical period in their first academic year. Students who dropped out were asked to answer a web-based form to report on why, and a small number of those students were interviewed. Many students received positive feedback on their choice of study, men to a slightly igher degree than women. Knowledge of the ECEC teacher profession before starting the study seems to be an important factor in recruiting for the ECEC bachelor programs. This also affects student’s motivation, both at the start of and later in their study. The main reason given for dropping out is having chosen the wrong study. Men drop out at a somewhat higher rate than women.
DESAIN HUKUM INDUSTRI INDONESIA: Membangun Sumber Daya Industri Bernilai Transendensi Pancasila
Authors: Ahmad Ahmad , Nasir Gamal Abdul
Published: January 2020

Tujuan: Artikel ini bertujuan untuk merumuskan konsep pembangunan sumber daya industri bernilai transendensi Pancasila Metodologi: Penelitian ini merupakan penelitian hukum doctrinal dengan pendekatan perundang-undangan. Temuan: membangun industri (sumber daya) membutuhkan adanya sumber daya manusia, memanfaatkan sumber daya alam, mengembangkan dan memanfaatkan teknologi, mengembangkan dan memanfaatkan kreatifitas dan inovasi juga tersedianya biaya serta penyediaan sumber pembiayaan dengan memperhatikan nilai Ketuhanan, Kemanusian, Persatuan, Kerakyatan dan Keadilan sehingga dapat membawa kemaslahatan bagi manusia dan lingkungan berdasarkan nilai-nilai Ketuhanan. Kegunaan: Industrialisasi ekonomi harus sejalan dengan nilai-nilai Ketuhanan, kemanusian, persatuan, kerakyatan dan keadilan bagi masyarakat Indonesia agar tidak terjadi kesenjangan/ketimpangan dalam memenuhi kesejahteraan dan kemakmuran masyarakat melalui industrialisasi maka peran negara harus kuat dan berpihak kepada kepentingan umum. Kebaruan/Orisinalitas: Pembangunan sumber daya industri merupakan usaha bersama untuk kemajuan dan kesejahteraan bersama maka peran negara harus hadir untuk memastikan seluruh rangkaian kegiatan dapat mencapai tujuan bersama dan seluruh rangkaian proses industrialisasi harus sejalan dengan nilai Pancasila
STUDENTS AWARENESS ON THE REGULATION OF INTELECTUAL PATENT RIGHTS ON THEIR WRITTING PRODUCTS (a case study on the students of State Polytechnic of Madiun)
Authors: Indrasari Febrina , Setiyawan Agustinus Doedyk
Published: January 2020

Students as an intellectual group should be able to be pattern for the younger generation, for example to behave honestly and responsibly. In the making of writing products, students must have an honest attitude in making writing products. To create student's honest behavior cannot be separated from the role of the institution to form a culture of honest behavior by not doing plagiarism against the work of others. This is the reason of the author to make a study with the title Students Awareness on the Regulation of Intelectual Patent Rights on Their Writting Products (A Case Study on the Students of State Polytechnic of Madiun)Based on the principal issues stated above, the purpose of this legal research are:To know whether or not the students of State Polytechnic of Madiun have an awareness on the regulation of Intelectual Patent Rights On Scientific WritingTo determine what factors influence the level of regulation awareness of students State Polytechnic of Madiun to Copyright on Scientific WritingResearch method used in this research is empirical sociological approach method that have intention to observe how is the reaction and interaction happened when system norm (law) work in the society that is to know whether the students of State Polytechnic of Madiun already have an awareness of law to  the Intellectual Patent Right of Scientific Writing and to know what factors may give influence to their level of law awareness of copyright on Scientific WritingBased on the above discussion about students 'legal awareness of intellectual property rights of copyrights on paper case study of Polytechnic State student of Madiun, it can be concluded that the students' legal awareness of copyright rights of writing is still low, indicated by the number of students who know about knowledge IPR / Copyright is still small. The copyright infringement is still committed, i.e., taking photocopies of ordinary and reasonable regardless of the sanctions or rules, then in the case of quoting other people's scientific papers or books, the awareness to include the source of the quotation is still low.Regarding the factors behind the level of law awareness of the students of State Polytechnic of Madiun on the copyright of the paper, the first factor of knowledge and understanding of law, as a whole the students have a low level of knowledge and legal understanding, can be seen from the two aspects contained in it that is about knowledge rules or laws governing and their aims and objectives. Many respondents who only know one of them, know the rules governing, but do not know the purpose of the rule, vice versa. The second concerning legal attitude and legal behavior, most of the students' legal attitude is good, but still many are not good, due to cultural habit factor in the environment and influenced by friends around.
A Novelty of Impact of Social Media from the Legal Perspective
Authors: Andriati Syarifah Lisa
Published: January 2020

Along with the development of science and technology, human life is growing dynamically, especially in the field of information and communication. The Cyber Era has produced internet technology and brought a new phenomenon in the area of mass media which also creates new media that is commonly called social media or social networking. Social media is like a two-edged knife. If used wisely, selectively and responsibly, various social networking sites can be useful, but if used irresponsibly, social media can have unfavorable consequences, and even cause legal problems.
The Effect of Dormancy Breakdown through Water Immersion with Temperature Stratification on the Germination of Sugar Palm Seeds (Arenga pinnata)
Authors: Rumahorbo Astry Sri Rezeki , . Duryat , Bintoro Afif
Published: January 2020

Sugar palm (Arenga pinnata) has a hard and impermeable pericarp, which make an obstacle for it’s germination. Scarification of seed is needed to breakdown the physical dormancy of seeds. One of the methods to break the physical dormancy is stratification by soaking seed in to the water in some different temperature level.  The aims of the study were to determine the effectiveness of stratification and to figure out the best water temperature in breaking the dormancy. A Completely Randomized Design (CRD) in four treatments (control, water immersion at 25°C, 50°C, and 75°C) with four replications was employed as research design.  Statistical analysis was conducted using homogenity of variance, variance analysis, and least significant difference tests. The result showed that the water immersion of arenga seed at 25°C and 50°C resulted in the germination percentage, germination rate and test germination that was comparable to control. Water immersion at 75°C reduced the percentage of germination and germination rate, however the treatment could increase the germination test. Water immersion of arenga seed at 25°C, 50°C, and 75°C were not effective to break the dormancy of sugar palm seed.Keywords: aren seeds, dormancy, water immersion
Stability and Sensitivity Analysis of Yellow Fever Dynamics
Authors: Otoo Henry , Appiah S. Takyi , Arhinful D.
Published: January 2020

Several West African countries have recently reported of Yellow Fever outbreaks. Ghana recently recorded an outbreak which lead to the death of three (3) people in the West Gonja District of the Northern Region. These indicate the re-emergence of the deadly disease. This research proposes a deterministic mathematical model through non-linear ordinary differential equations in order to gain an accurate insight into the dynamics of yellow fever between human beings and the vector Aedes mosquito in an unvaccinated area for the purpose of controlling the disease. The disease threshold parameter was obtained using the next generation matrix. The Gerschgorin theorem proved the disease-Free equilibrium and the Endemic equilibrium to be locally asymptotically stable for  and  respectively. The Lyapunov function proved the disease-Free Equilibrium to be globally asymptotically stable for . In order to study the effect of the model parameters to , the sensitivity analysis of the basic reproduction number with respect to epidemiological parameters was performed.
Subsea Crude Oil Spill Detection Using Robotic Systems
Authors: Ejofodomi O'tega , Ofualagba Godswill
Published: January 2020

Underwater Robotic Oil Spill Surveillance (UROSS) system provides constant and autonomous spill surveillance for subsea pipelines. M900 embedded Radio Frequency Identification tags and readers are used to identify pipeline section for surveillance. GY-521 gyrometer and XL-MaxSonar-WR1 ultrasound sensor are used for autonomous navigation. Spills are detected using a METS methane sensor. After spill detection, images of spill site are captured with a L3C-400 Micro Ultras-Miniature Color Camera and spill location is obtained using GPS. Spill Images and location are transmitted to a remote PC on the nearest off shore platform using an Xbee Pro 900HP wireless connection. An Ocean Signal rescueME Personal Beacon Locator transmits a 406 MHz distress signal via satellite to emergency services communicating the identification of a spill. Power analysis showed the system’s ability to remain submerged and to provide surveillance for 100 m sections of a subsea pipeline once every 24 hrs for a month, and can be increased to every hour for 51 months.
Non-Destructive Characterization of Subsurface Plastic Deformation in Case Carburized Steel Using Magnetic Barkhausen Noise Technique
Authors: Blaow Mohamed M. , Ballem Mohamed Ali , Shaw Brian Andrew
Published: January 2020

The effect of extreme loading in bending was investigated by magnetic Barkhausen Noise (MBN) and X-ray diffraction (XRD) in two types of inhomogeneous steels that widely used in gear industry. EN 36 and H8620 steels in the carburized, tempered and ground condition were investigated after unloading from high stress levels. The inhomogeneity arising from the variation in carbon content showed up clearly by double peaks MBN profiles before loading. The first MBN peak at low field revealed the soft subsurface region and the second peak at higher field revealed the hard surface layer. Residual stresses profiles were produced by XRD before and after loading to probe plasticity in the cross sections of both specimens. Barkhausen noise measurements showed a considerable change in the first peak height in both steels as a response to plastic deformation in tension and compression in the subsurface material. The height of the second peak remained unchanged in EN 36 specimen but increased slightly in the H8620 specimen.  The residual stress measurements after unloading indicated that the subsurface materials after a depth of 0.4 mm in both specimens were yielded. The surface layer of the H8620 steel was also affected slightly by bending as revealed by an increase in the second MBN peak height and confirmed by XRD as indication of yielding. The experiment confirmed that the magnetic Barkhausen noise can be used to characterize yielding in inhomogeneous steels non-destructively.
Use of Non-Hazardous Solid Waste as Alternative Fuels in Cement Manufacturing Process
Authors: Bouabid Ghizlane , Byoud Fouzia , Benzbiria Nisrine , Nahya Driss , Azzi Mohammed
Published: January 2020

The incineration of non-hazardous solid waste and its use as alternative fuel in cement manufacturing process was studied and simulated under the effect of air flow acceleration in a laboratory scale reactor. Firstly, analysis of the different waste materials (textile, wood and paper) was performed separately, showing that textile samples presented the highest levels of heavy metals (H.M). In the course of a test run using solid recovered fuel (SRF), the mass balance of heavy metals revealed that lead and chromium probably volatilized during firing while arsenic, cadmium and zinc were trapped in clinker. As to gaseous emissions, heavy metals concentration in the stack remained relatively low and below the standard limits. Secondly, the temperature and concentration of gases flue was monitored. It was shown that the combustion regime is characterized by low reaction temperatures and an oxygen-deficient environment. Air injection rate affected significantly the formation and degradation mechanisms of the emitted gases concentrations, particularly CO, CO2, NO, NOx, SO2. Textile waste exhibited the lowest concentration of emitted gases compared to the other types of waste.
Optimal Simulation and Mathematical Correlation of Mud Weight for Effective Wellbore Stability Management
Authors: Oriji Boniface A. , Okeke Raphael Odikpo
Published: January 2020

Wellbore instability is a problem that affects drilling activities. It is therefore important to provide an optimal solution that prevents or reduces the occurrence of wellbore collapse and not compromise the integrity of the well. In this study, work was done to assess the impact of several parameters including tubing pressure, tubing fluid temperature, length of tubing, gas density, liquid density, tubing hold-up and total mass flow on mass fraction of tubing muds were considered. Data points for this investigation were obtained using OLGA multiphase simulator. The results of the simulation (including the trend and plot data) were exported to MATLAB to develop a mud weight model (correlation) using the MATLAB regress function. The correlation was also validated using statistical techniques such as the R square and Significance F values. Comparison of the trend plots of the actual data points from OLGA and the predicted data points was also done to further prove the reliability of the correlation. The correlation predictions agreed with the OLGA results excellently with a relative error of less than 0.001 %. This study revealed that the tubing mud weight is significantly impacted on by variables like tubing holdup, tubing gas density, tubing liquid densities and the total mass flow. Whereas the tubing pressure, fluid temperature, and the tubing length have insignificant effects on the tubing mud weight. From the trend plots of the variables, it was deduced that as the tubing pressure increased, the temperature and the mud weight also increased. While, the total mass and volumetric flows reduced with increased tubing pressure. The effect of input data uncertainties on the developed correlation were also tested by using 22 observation points to predict tubing mud weight and calculating the resulting residual values. Over 90% of the residual values were negative and the percentage difference in mud weight between the first and the last observation points was approximately 4%. Hence, the effect of input data uncertainties on the developed correlation is insignificant. This report will serve as a template for drilling engineers, assisting them with a simple, fast and reliable technique for determining optimum drilling parameters with a lesser engineering exertion and drilling experience.
Single Harmonic Black Holes
Authors: Vegt Wim
Published: January 2020

In this New Theory a “Single Harmonic Black Hole” (SHBH) has been considered to be the Gravitational-Electromagnetic Confinement of a Single Harmonic Electromagnetic Field Configuration in which a perfect equilibrium exists between the outward directed electromagnetic radiation pressure and the inward directed Electromagnetic-Gravitational Interaction force densities.    This frequency transformation is possible because of the combined Lorentz / Doppler-Effect transformation during the collapse (contraction) of the radiation when the Gravitational Electromagnetic Confinement has been formed (Implosion of Visible Light).  Within the scope of this article “Single Harmonic Black Hole” (SHBH) is considered to be any kind of 3-dimensional confined Single Harmonic Electromagnetic Energy. The inner structure of a “SHBH” has been based on a 3-dimensional isotropic equilibrium within the electromagnetic field configuration. This new theory will explain how electromagnetic fields (wave packages) demonstrate inertia, mass and momentum and which forces keep the wave packages together in a way that they can be measured like particles with their own specific mass and momentum. To understand what electromagnetic inertia and the corresponding electromagnetic mass, spin and electric charge is and how the anisotropy of electromagnetic mass, spin and electric charge can be explained and how it has to be defined, a New Theory about “Electromagnetic-Gravitational Interaction” has been developed. The “New Theory” has been based on the fundamental principle of “Perfect Equilibrium within the Universe” which has already been expressed by Newton’s three equations published in 1687 in “Philosophiae Naturalis Principia Mathematica. Newton’s Equations in 3 dimensions will be published in this article in an extension into 4 dimensions. Newton’s 4-dimensional law in the 3 spatial dimensions results in an improved version of the classical Maxwell Equations and Newton’s law in the 4th dimension (time) results in the quantum mechanical Schrödinger wave equation (at non-relativistic velocities) and the relativistic Dirac equation.
Socio-Economic and Parental Attention toward Learning Achievement with Mediation of Motivation to Learn
Authors: Hutasuhut Saidun , Wirawan Indah Putri
Published: January 2020

This study investigates the influence of parents' socio-economic conditions and attention to motivation to learn and learning achievement, moreover, also examine the mediation of motivation to learn on the influence of socio-economic conditions and parents' attention toward learning achievement. This study uses the ex-post-facto method. The data collection used in this study was questionnaires. The study population was eighth-grade students of junior high school in Medan, Indonesia, as many as 213 people and the samples taken were 138 people. The data analysis technique uses here as path analysis. The findings in the study are the socio-economic conditions and parents' attention directly, positively and significantly influence students' motivation to learn. Then the parents' socio-economic conditions, parents' attention, and motivation to learn have a positive and significant direct effect on learning achievement. Furthermore, motivation to learn is considered to mediate the influence of socio-economic conditions and parents' attention to social studies learning achievement. Parents' attention also mediates the influence of parents' socio-economic conditions on motivation to learn and learning achievement. Learning achievement is more accessible to achieve for families with adequately socio-economic conditions. Social studies learning achievements can be improved by increasing the attention of parents because it will increase motivation and further improve learning achievement.
Nature Relatedness as a Predictor of Psychological Well-Being: A Study of Indonesian Urban Society
Authors: Adiwena Bartolomeus Yofana , Djuwita Ratna
Published: January 2020

The complexity of urban life can have its own negative impact on the psychological well-being (PWB) of its society. It is thought that the natural environment can reduce that negative impact and have an important role in the health and well-being of urban society. Nature relatedness (NR) is a construct which illustrates an approach to, or a subjective individual relationship with, the natural environment. Previous research indicates that NR has a positive relationship with the PWB of a person; however such research used a sample of society in Western countries. Does a relationship between NR and PWB exist also in the context of urban Indonesian society? The principle aim of this research was to prove a relationship between NR and PWB, using a sample from urban Indonesian society. This research was of a non-experimental nature, with 178 respondents. Analysis using structural equation modeling (SEM) proved that the NR level of an individual is a positive predictor of the PWB they have. For this reason, the higher the level of NR an individual has, the higher also is the level of PWB they will have. The authors recommend that all people managing vested interests pay attention not only to situational factors, such as the existence of open green spaces and the cleanliness of the environment, but also pay attention to dispositional factors, such as NR, which is proven to have an important role for PWB.
“Just Became a Love Slave”: Shedding Light on Relationship Violence Against Males
Authors: Christian Albertus , Suvianita Khanis
Published: January 2020

“Violence”, in general, is a word associated with conduct more often perpetrated by males, whether against females or other males. Indeed, even in the field of ‘dating’, discussions on violence often deal specifically with it being against women, so that the term, “violence against women” has arisen. However, certain data indicates that this discussion should also involve violence against men. This discourse had apparently not yet surfaced, so the authors were interested in examining and seeking out what were male concepts, regarding any violence they may have experienced whilst in relationships. The results emerging indicated the existence of a number of concepts on particular facets of masculinity, those being of masculinity of either a romantic or a hegemonic nature. Overall, the situation puts males in the position of being the subject of high expectations of power, making the behavior of their partners to be considered as being non-violence. The overall organization of the discourse emerged in various forms, however these were of the same type as the discussion which has emerged concerning violence against women, so that it may be concluded that both of these topics are of similar importance, when it comes to their discussion.
Parental Mediation with Adolescent Users of I.T. Devices
Authors: Pandia Weny Savitri S. , Purwanti Margaretha , Pristinella Debri
Published: January 2020

A parental strategy in relation to the influence of media usage (parental mediation), in this case that of the Internet on adolescents, is greatly needed. The ideal strategy is a combination of active mediation (discussion regarding the content), and restrictive mediation (determination of rules for media usage), however what is normally employed is still restrictive mediation and co-using mediation (the joint use of media with the child, but without parent-child interaction to explain media content and impact). In this research, the aim was to look at an illustration of parental mediation towards the child. Quantitative research, with purposive sampling was conducted, on 94 parents and 423 information technology-based junior high school students, using questionnaires based upon the Perceived Parental Media Mediation Scale (the reliability of the parental scale being .84, and that of the student scale being .84). From frequency analysis and correlation testing, it was found that the strategy of restrictive mediation was the dominant one used by parents. This was supported by the perceptions of the students. Types of employment, numbers of children, and education levels did not influence the type of parental mediation; however, the greater the ages of parents, the greater was the imposition of restrictions. From the research, a picture may be gained of the allocation of devices to students. Explanation is required, to parents, of the importance of active mediation, and the positive utilization of I.T. devices (hereinafter called ‘devices’) by students.
Study of The Use of Composite Flour Waste of Bean Sprouts Skin with Ganyong Flour (Canna edulis Kre.) Against The Characteristics of Probiotic Biscuit
Authors: Putri Florentina Dwi , Kayaputri Indira Lanti , Arifin Heni Radiani
Published: January 2020

The skin of bean sprouts is a waste in the process of green beans into sprouts, while ganyong is a typical local tuber of west java which is very rarly used. Waste of bean sprouts has high fiber and protein content, while ganyong has high carb content. Both raw materials have potential to be processed into a probiotics biscuit products. Biscuit probiotics is a biscuit that has a probiotic content that is instrumental in human body digestion. This research aims to set the offset of composite waste skin of bean sprouts and ganyong flour with good characteristic and liked by the panelist. Research method are conduct experimental by using random block design continued with Duncan test. The treatment used is a variety of formula waste skin of bean sprouts flour (TLKT) : ganyong flour (TG : flour (TT); (P1) 20%:60%:20%, (P2) 30%:50%:20%, (P3) 40%:40%:20% against the total weight of biscuit probiotics dough. The source of probiotic is obtained from adding freeze dried culture in mother culture form. Probiotic biscuits’ organoleptic characteristic were testing through hedonic test by 15 semi-trained panelist. Research results shows the difference of those TLKT and TG gives a real different influence against taste, but give not real different against color, aroma, visibility, texture, after taste of probiotic biscuit. Probiotic biscuit formula P2 (30% TLKT:50% TG) selected as the best treatment also liked a bit by the panelist. Keywords: freeze dried, ganyong flour, probiotic biscuit, skin waste of bean sprouts flour
STRATEGI DAN STRUKTUR NAFKAH RUMAHTANGGA PETANI AGROFORESTRI KECAMATAN PARIGI KABUPATEN GOWA PROPINSI SULAWESI SELATAN
Authors: Salatalohy Asiah
Published: January 2020

Lahan kering berlereng curam dan adanya perubahan cuaca yang tidak menentu sangat berdampak pada penghidupan petani agroforestri di Kecamatan Parigi, terutama melalui pengaruhnya terhadap produktivitas lahan sehingga mereka harus menentukan pilihan strategi nafkah selain pertanian. Penelitian ini bertujuan:      (1) mengidentifikasi modal nafkah yang dimiliki dan dimanfaatkan rumahtangga petani agroforestry (2) Mengetahui struktur nafkah rumah tangga petani agroforestri berdasarkan pemanfaatan modal nafkah (3) Menganalisis strategi nafkah rumah tangga petani agroforestry. Penelitian ini dilaksanakan di desa Majannang dan Manimbahoi dengan sampel sebanyak 33 orang, menggunakan pendekatan kualitatif dan didukung dengan pendekatan kuantitatif. Pendekatan kuantitatif dilakukan melalui survei dan menggunakan kuesioner sebagai alat penggumpul data. Pengumpulan data kualitatif dilakukan dengan menggunakan metode wawancara mendalam terhadap informan. Hasil penelitian menunjukkan modal nafkah yang dimiliki dan dimanfaatkan rumahtangga petani agroforestri terdiri dari (1) modal alam berupa lahan sawah, lahan kering, hewan, mata air dan kawasan hutan (2) modal manusia berupa pendidikan dan keterampilan (3) modal sosial berupa land tenure, tree tenure, jaringan pemasaran dan kelembagaan hubungan kerja (4) modal fisik berupa jalan raya, chekdam, pasar, PLTMH dan peralatan produksi serta (5) modal finansial berupa pendapatan on farm, off farm, non farm, pendapatan kayu, tabungan dan pinjaman. Sumber pendapatan berasal dari sektor on farm (72,20%), off farm (0,61%) dan non farm (27,8%). Strategi yang dilakukan rumahtangga petani agroforestri rumah bervariasi . Dalam satu rumah tangga dapat menerapkan dua atau lebih jenis strategi nafkah.Hasil perhitungan terhadap struktur nafkah menunjukkan bahwa basis nafkah petani agroforestri adalah sektor pertanian (72,20%) dengan menerapkan delapan bentuk stategi penghidupan .
Pengaruh Pakan Buatan Kedelai (Glycine max L) dan Kacang Merah (Phaseolus vulgaris L.) Terhadap Pertumbuhan Larva dan Produksi Kokon Ulat Sutera (Bombyx mori L)
Authors: Zainuddin Rosdiana
Published: January 2020

Sericulture or silk farming is one of forest product non wood which product cocoon and then spun become raw silk. National demand of cocoon is high equivalent 900 ton/year. National cocoon production only 5%, and 95% import from Cina. The quality of mulberry leaf is bad and limited in dry season. One way to replace mulberry’s leaf as natural food is provide artificial feed.The aim of this research is to know the influence in giving artificial feed to larvae and cocoon production as well as to know the best various artificial feed is made from soybean and kidney bean. This research was conducted in silk center of environment and forestry education and training center Makassar from April until July 2019. This research uses Complete Random Design and Data analyzed by using Analysis of Variance (ANOVA)The best variation of artificial feed for growth larvae are kidney bean (Phaseolus vulgaris L.) and soybean (Glycine max L), the results showed that average of weight larvae and increase of weight larvae, growth index, the average of length larvae are more than larvae indicator, although the Tukey Test stated that it is not significantly different from the indicator. Then for cocoon production, kidney beans heaviest for fresh cocoon, heavy fiber, percentage of cocoon skin and length of fiber nearly same indicator. While soybean, is the best in strength of fiber, however it is shortest of its fiber, weight of larvae is lightest, growth index and percentage of skin cocoon are the lowest.
Generalized canonical correlation analysis for functional data
Authors: Górecki Tomasz , Krzyśko Mirosław , Wołyński Waldemar
Published: January 2020

There is a growing need to analyze data sets characterized by several sets of variables observed on the same set of individuals. Such complex data structures are known as multiblock (or multiple-set) data sets. Multi-block data sets are encountered in diverse fields including bioinformatics, chemometrics, food analysis, etc. Generalized Canonical Correlation Analysis (GCCA) is a very powerful method to study this kind of relationships between blocks. It can also be viewed as a method for the integration of information from K > 2 distinct sources (Takane and Oshima-Takane 2002). In this paper, GCCA is considered in the context of multivariate functional data. Such data are treated as realizations of multivariate random processes. GCCA is a technique that allows the joint analysis of several sets of data through dimensionality reduction. The central problem of GCCA is to construct a series of components aiming to maximize the association among the multiple variable sets. This method will be presented for multivariate functional data. Finally, a practical example will be discussed.