bluuebunny/crossref_metadata_2025 huggingface dataset:
Differentiation of Rubber Cup Coagulum Through Machine Learning
Authors: Nepacina M.R.J. , Foronda J.R.F. , Haygood K.J.F. , Tan R.S. , Janairo G.C. , Co F.F. , Bagaforo R.O. , Narvaez T.A. , Janairo J.I.B.
Published: April 2019

A support vector machine classification algorithm was formulated to differentiate rubber cup coagulum according to the type of acid coagulant used. Two classification models were established, a binary classification algorithm and a model that can identify if formic, acetic, sulfuric acid, or no acid was used to induce coagulation. The models were based on the properties of the rubber cup coagulum that are easy to measure, such as tensile strength, water contact angle, and density. The binary classification model, which differentiates the industry-accepted formic acid-coagulated rubber cup coagulum from those which are not, exhibited satisfactory reliability, as evidenced by a 92% overall prediction accuracy and 71.4% cross-validation accuracy. Moreover, it was also determined that the rubber properties density, and water contact angle were important contributors for the classification. Acid-induced rubber coagulation is an important post-harvest process that influences the resulting rubber quality. Thus, the accurate differentiation of the rubber samples is useful for quality assurance purposes, as well as in policy enforcement.
Does Foreign Direct Investment (FDI) Contribute to Poverty Reduction? Empirical Evidence from Central European and Western Balkan Countries
Authors: Ganić Mehmed
Published: April 2019

This paper seeks to empirically examine the validity of nexus between Foreign Direct Investment (FDI) and poverty reduction in the context of twelve European transition and post-transition countries divided in two regions, between 2000 and 2015. The empirical analysis investigates whether some variations in poverty reduction are influenced by countries’ FDI performance and lead by progress in the EU integration process. The study finds that the nexus between FDI and poverty reduction varies between two regions (the Western Balkan region and the Central Europe region). While the relationship between FDI and poverty reduction has a positive effect in the Western Balkan region, it is insignificant and negative in the Central European region. In addition, the findings confirm some earlier assumptions that FDI impacts poverty reduction more strongly in poorer countries (the Western Balkan region) than in wealthier countries (the Central European region).
An Investigation into the Level of Financial Inclusion in Sub-Saharan Africa
Authors: Abdulmumin Biliqees Ayoola , Etudaiye-Muhtar Oyebola Fatima , Jimoh Abdulrasaq Taiye , Sakariyahu Ola Ridwan
Published: April 2019

Financial inclusion is crucial for redistribution of economic resources between the deficit and surplus units in an economy. Despite the importance of financial inclusion, especially for economic growth of developing regions such as Sub-Saharan Africa, the prevailing level financial inclusion remain an open question. Against this background, this study investigates the level of financial inclusion in Sub-Saharan Africa between 2005 and 2015. This study employs secondary data obtained from the International Monetary Fund (IMF). The data obtained was subjected to Principal Component Analysis to determine the level of financial inclusion in Sub-Saharan Africa. The findings show that Sub-Saharan Africa has a medium level of financial inclusion during the observed period with Index of Financial Inclusion (IFI) value of 0.095023. The study concludes that Sub-Saharan Africa has high propensity to achieve a high level of financial inclusion in the region if more outlets of financial institutions are established.
Discretion of the Monetary Policy: An Exemplification with Bolivia
Authors: Rivero Roger Alejandro Banegas , Ramírez Marco Alberto Núñez , Ríoe Sacnicté Valdez del
Published: April 2019

In this paper, we evaluate and quantify the role of the discretion of the monetary policy in an open small and open economy (the case of Bolivia). The results suggest that conventional instruments of the Central Bank respond in different ways: interest rates present a sensitive/elastic response to output gap (actual economic cycle) [1.8]; an inelastic mechanism to inflation [0.5]. On the other hand, open market operations in the Central Bank responds elastically to inflation [1.2] and insensible to the output gap. These results are robust to alternative specification utilizing the Generalized Method of moments (GMM), for the quarterly period from 2000(T1)-2015(T4).
Coupling Tank Model and Lars-Weather Generator in Assessments of the Impacts of Climate Change on Water Resources
Authors: Mohammadzadeh Naser , Amiri Bahman Jabbarian , Endergoli Leila Eslami , Karimi Shirin
Published: April 2019

With the aim of assessing the impact of climate change on surface water resources, a conceptual rainfall-runoff model (the tank model) was coupled with LARS-WG as a weather generator model. The downscaled daily rainfall, temperature, and evaporation from LARS-WG under various IPCC climate change scenarios were used to simulate the runoff through the calibrated Tank model. A catchment (4648 ha) located in the southern basin of the Caspian Sea was chosen for this research study. The results showed that this model has a reasonable predictive capability in simulating minimum and maximum temperatures at a level of 99%, rainfall at a level of 93%, and radiation at a level of 97% under various scenarios in agreement with the observed data. Moreover, the results of the rainfall-runoff model indicated an increase in the flow rate of about 108% under the A1B scenario, 101% under the A2 scenario, and 93% under the B1 scenario over the 30-year time period of the discharge prediction.
Characterization of Bitumen Binders on the Basis of Their Thermo-Viscous Properties
Authors: Holý Michal , Remišová Eva
Published: April 2019

Bitumen is one of the basic building materials that is mainly used in road construction. Nowadays, we can observe increased requirements for the quality of bituminous binders, which are due to increased traffic loads, changing climate conditions, and decreasing crude oil stocks. Besides “traditional” (empirical) tests (softening point, penetration), new types of tests have been developed that can better describe the quality and behavior of bitumen binders. Their composition can also be a significant part of the properties themselves. Therefore, the elemental and group composition of bitumen must also be observed. The use of the viscosity temperature susceptibility (VTS) test appears to be well suited to evaluate the properties of bitumen binders. The VTS parameter is directly dependent on the viscosity of bitumen, but it is necessary to say that VTS can be significantly affected by the composition of the bitumen. The paper is focused on determining the dependencies between the VTS and the bitumen’s composition, respectively, to find out how the composition influences the VTS.
The Binder Index – A Parameter That Influences the Strength of Geopolymer Concrete
Authors: Rama Seshu D. , Shankaraiah R. , Sesha Srinivas B.
Published: April 2019

Geopolymer concrete (GPC) is an environmentally friendly material in the sense that it uses industrial by-products such as ground granulated blast furnace slag (GGBS) and fly ash (FA), which are activated by an alkaline solution. This paper presents an experimental investigation concerning the strength of the GPC and its relation to a new parameter called the ‘Binder Index (BI)’. The parameters considered in the investigation include GGBS to fly ash ratios (0.25 0.43, 0.67, 1.0, 1.5, and 2.3) and the molarity of the alkaline activator (6, 8, 10, and 12). The binder index combines the effect of the GGBS to the fly ash ratio and the molarity of the alkaline activator. The results have shown that the strength of the GPC is significantly influenced by varying the binder index. The results indicate that a nonlinear relation exists between the binder index and the compressive strength of the GPC and the binder index and the modulus of rupture.
Quantification of Changes in the Shape and Dimensions of Parcels in Land Consolidation
Authors: Geisse Robert , Hudecová Ľubica
Published: April 2019

The paper describes the shapes and dimensions of parcels fordifferent types of land management. Firstly, various types ofland management are defined with a theoretical expression of side ratios, which should be used as a basis for drafting new parcels.In later parts of the paper, we discuss a compactness index,which is used to define the compactness of parcels and methods of calculating a compactness index by several authors. Based on the theoretical values of side ratios, we determined compactness index ranges for different types of land management. Our theoretical findings have been verified at the area of interest, i.e., part of the municipality of Stupava. Based on a comparison of the compactness index for parcels of respective owners before and after consolidation, we can evaluate any improvement of the compactness of parcels for their respective owners and, through improving the parcels’ compactness, we can improve land cultivation. Based on these calculations, we can also determine the percentage of parcels in the municipality based on side ratios before and after the consolidation process.
The Prevalence of Depression and Anxiety and Their Lifestyle Determinants in a Large Sample of Iranian Adults: Results from a Population Based Cross-Sectional Study
Authors: Alizadeh Zeinab , Feizi Awat , Rejali Mehri , Afshar Hamid , Keshteli Ammar Hassanzadeh , Abdollahi Mahbubeh , Adibi Peyman
Published: April 2019

Association of lifestyle-related factors and mental health has been less studied in Middle Eastern countries. This study aimed to examine the prevalence of two common mental health problems, i.e., depression and anxiety, and their lifestyle determinants in a large sample of Iranian population.

This study was conducted within the framework of SEPAHAN population based cross-sectional study (N=4763(. The General Practice Physical Activity Questionnaire (GPPAQ) was used to assess physical activity and the Iranian-validated version of Hospital Anxiety and Depression Scale (HADS) was applied to screen for anxiety and depression. Logistic regression was used as the main statistical method for data analysis by SPSS version 16.0. A P-value <0.05 was considered to be statistically significant.

The risk of anxiety and depression was 2.5 (OR=2.56,95% CI: 1.97-3.33) and 2.21(1.83-2.67) times higher in women than men, respectively. With every one-year increase in the age, the risk of anxiety decreased by 2% (OR=0.98,95% CI:0.97-0.99). Individuals with higher education had 56% lower risk of anxiety (OR=0.44,95% CI: 0.36-0.55) and 46% depression (OR=0.54,95% CI: 0.46-0.64) than the undergraduate group, and the risk of depression in the inactive (less than one hour of activity per week) group was 27% higher than the active group (OR=1.27,95% CI: 1.06-1.51). The risk of anxiety in the non-smoker group was 65% (OR=0.35,95% CI: 0.20-0.59) and depression was 64% lower than among smokers (OR=0.34,95% CI:0.22-0.53). In the ex-smoker group, the risk of anxiety was 60% (OR=0.40,95% CI:0.19-0.85) and depression was 59% lower than for the smoker group (OR=0.41,95% CI: 0.24-0.73).

This current study’s results demonstrated significant associations between unhealthy lifestyle factors and increased risk of anxiety and depression. Hence, special attention must be paid to preventive intervention programmes aiming to enhance healthy lifestyle among at-risk populations.
Influence of cognitive and motor abilities on the level of current functioning in people with multiple sclerosis
Authors: Slavkovic Sanela , Golubovic Spela , Vojnovic Matilda , Nadj Congor
Published: April 2019

Introduction

Multiple sclerosis (MS) results in a wide range of disabilities. The effects of cognitive and motor dysfunctions are significant and affect level of functioning in people with MS.

Objective

The aim of the research was to determine the common contribution of neurological, motor and cognitive status to the overall functioning of MS patients.

Method

The sample consisted of 108 subjects with RRMS. The instruments used in the research included: The General Questionnaire, the World Health Organization Disability Assessment Schedule, the Audio Recorded Cognitive Screen, Paced Auditory Serial Addition Test, the Nine Hole Peg Test, the 25 Foot Walk Test, and the Expanded Disability Status Scale.

Results

Subjects with a mild neurological deficit had a higher level of current functioning in all domains (a lower WHODAS 2.0 score) than subjects with a moderate neurological deficit (r=0.43, p<0.001). We found a positive correlation between the level of cognitive impairment and motor deficits of both upper and lower extremities and the level of neurological deficit (p<0.001). Subjects with lower neurological deficits had significantly lower WHODAS 2.0. scores, i.e. better motor abilities of both upper and lower extremities than subjects with moderate neurological deficits (p<0.001). The greatest contribution to explaining the overall level of current functioning of people with MS had subjects’ age, cognitive abilities and motor abilities of the upper extremities.

Conclusion

Inverse relationship of neurological, motor and cognitive status affects the overall daily functioning of people with MS, requiring planning of comprehensive programs in the rehabilitation of people with MS.
Prevalence of and factors associated with healthcare-associated infections in Slovenian acute care hospitals: Results of the third national survey
Authors: Klavs Irena , Serdt Mojca , Korošec Aleš , Lejko Zupanc Tatjana , Pečavar Blaž
Published: April 2019

Introduction

In the third Slovenian national healthcare-associated infections (HAIs) prevalence survey, conducted within the European point prevalence survey of HAIs and antimicrobial use in acute care hospitals, we estimated the prevalence of all types of HAIs and identified factors associated with them.

Methods

Patients were enrolled into a one-day cross-sectional study in November 2017. Descriptive analyses were performed to describe the characteristics of patients, their exposure to invasive procedures and the prevalence of different types of HAIs. Univariate and multivariate analyses of association of having at least one HAI with possible risk factors were performed to identify risk factors.

Results

Among 5,743 patients, 4.4% had at least one HAI and an additional 2.2% were still treated for HAIs on the day of the survey, with a prevalence of HAIs of 6.6%. The prevalence of pneumoniae was the highest (1.8%), followed by surgical site infections (1.5%) and urinary tract infections (1.2%). Prevalence of blood stream infections was 0.3%. In intensive care units (ICUs), the prevalence of patients with at least one HAI was 30.6%. Factors associated with HAIs included central vascular catheter (adjusted odds ratio [aOR] 4.1; 95% confidence intervals [CI]: 3.1–5.4), peripheral vascular catheter (aOR 3.0; 95% CI: 2.3–3.9), urinary catheter (aOR 1.8; 95% CI: 1.4–2.3).

Conclusions

The prevalence of HAIs in Slovenian acute care hospitals in 2017 was substantial, especially in ICUs. HAIs prevention and control is an important public health priority. National surveillance of HAIs in ICUs should be developed to support evidence-based prevention and control.
Health behaviour changes of cutaneous melanoma survivors in Slovenia – a qualitative study
Authors: Butina Mirjam Rogl , Švab Igor , Perić Barbara , Bartenjev Igor
Published: April 2019

Introduction

Most data related to cutaneous melanoma survivors’ health behaviour comes from epidemiological studies and is predominantly concerned with safe-sun behaviour and self-examination. Data regarding other changes of health behaviour are scarce and so are qualitative studies in this realm. The aim of our research is to acquire insight into the experiences of patients with cutaneous melanoma in Slovenia. How did they react to the diagnosis, which changes did they introduce in their health behaviour and how do they assess the role of family doctors?

Methods

Using the qualitative approach of collective case reports, a demographically diverse group of patients with different forms and stages of cutaneous melanoma was selected. Semi-structured interviews conducted by a psychologist were recorded and transcribed verbatim. For data processing, the approach of Qualitative Content Analysis was applied.

Results

We integrated interviewees’ experiences after the diagnosis of cutaneous melanoma in several subcategories: either they did not introduce any changes or they mentioned changing their habits when exposed to the sun and performing skin self-examination; they also emphasized their ways of dealing with stress and raising awareness about melanoma among family members and friends. The role of family doctors in the prevention and care appears unclear; even contradictory.

Conclusion

We obtained insight into the experiences of Slovenian patients with cutaneous melanoma. The interviewees prioritised safe behaviour in the sun, strengthening of psychological stability and raising awareness about melanoma. Findings will be used in the creation of a structured questionnaire for national epidemiological survey.
Frailty assessment scales for the elderly and their application in primary care: A systematic literature review
Authors: Dolenc Eva , Rotar-Pavlič Danica
Published: April 2019

Background

The increase in the elderly population is causing changes and challenges that demand a comprehensive public health response. A specific characteristic of the elderly is their frailty. Today’s problems with identifying levels of frailty are being resolved by numerous tools in the form of frailty assessment scales. This systematic review establishes which frailty assessment scales for the elderly are being used and what their applicability in primary care is like in Slovenia and around the world.

Methods

Documents published after 2010 were searched for in the PubMed database using keywords and other specific criteria.

Results

A total of 177 search hits were obtained based on various search strings. The final analysis included 28 articles, of which three were systematic literature reviews. These three covered quantitative studies, mainly consisting of observational cross-sectional surveys or cohort studies. Three other studies featured non-systematic literature reviews. Quantitative studies (mainly cross-sectional surveys or cohort studies) prevailed among the remaining 22 articles. One study had a qualitative design (Delphi method). The main outcome measures observed by all studies were frailty assessment scales for the elderly, the majority of which were evaluated on a sample of the elderly.

Conclusions

None of the assessment scales examined are used as the gold standard for primary care. A variety of tools are being used in clinical practice to assess frailty in elderly patients, highlighting the need for standardization and guidelines. This requires evaluating the current assessment scales in terms of validity and reliability, and suitably improving them.
Access to Finance – Experiences of SMEs in Croatia
Authors: Kolaković Marko , Turuk Mladen , Turčić Ivan
Published: April 2019

Access to finance for small and medium enterprises still represents one of the biggest problems that entrepreneurs face when launching their business or when they want to enhance their production capacities in other stages of the enterprise life cycle. Entrepreneurs generally use informal sources of financing when starting their business (3F: family, friends and fools) if they do not have other available sources of financing. There is a common classification in the literature that divides the sources of financing to: informal investors, debt financing, equity financing, government support programs and the entrepreneurs’ own sources. The purpose of the survey conducted for this paper is to determine the sources of used finance of Croatian SMEs and the main problems that SMEs encountered while accessing finance. The second main goal of this article is to identify future needs for financing with potential financing problems that may occur. We gathered data from Croatian SMEs about the sources of funding used over the past three years and about the funding sources that they intend to use in the next three years. In last part of the paper we analyze the results from the survey and from that draw the implications for policy makers and market participants.
Advanced System of SME Financing in Market Economy
Authors: Różański Jerzy
Published: April 2019

Increasing competitiveness of small and medium enterprises, especially in the situation of growing economic globalization in the member countries of European Union and internationalization of activity of such enterprises, requires overcoming numerous obstacles the enterprises have to face. One of the most substantial of them is deficiency of means for the enterprises’ growth, particularly the means earmarked for innovative activity. This is mainly the consequence of lack of knowledge about how the enterprises could gain financial means from the alternative financing sources. This hinders establishing the optimal configuration of financing for an enterprise. Consequently, the purpose of the paper to improve enterprises’ access to external capital so as to be able to carry out the investments oriented towards strengthening of the enterprises and launching innovative products and services. The main result of research (sample of Polish SME) is preparing of advanced system of financing including alternative forms of financing of SME on each stages of their life cycle, connected with multicriteria forms of their assessment.
Effects of the Establishment of Entrepreneurial Orientation on the Performances of Small and Medium Enterprises in Transition Countries: Empirical Evidences from Bosnia and Herzegovina
Authors: Petković Saša , Sorak Snežana
Published: April 2019

Bosnia and Herzegovina (BiH) has a relatively low level of entrepreneurial activity as evidenced by GEM reports but also has an economic structure in which SMEs account for about 99% of the total number of enterprises. The goal of this paper was to examine the level of entrepreneurial orientation (EO) and influence of EO on business performances of SMEs in the Republic of Srpska (RS), one of the two BiH entities, in which the empirical research was done. We have used adapted Covin & Slevin (1989) version of the questionnaire. We found out that only 12.28% of sampled SMEs have all three dimensions of EO pronounced. The least pronounced dimension is risk-taking and the most pronounced dimension is proactiveness. Our research did not confirm the impact of EO on selected indicators of business performances.
Quality of Government and Well-being: Assessing the Gap in European Countries
Authors: Lobont Oana Ramona , Vatavu Sorana , Glont Oana Ramona , Mihit Lavinia Daniela
Published: April 2019

This paper analyses the influential factors which determine the differences between social and economic dimensions in the European Union. The main objective was to construct a composite indicator of the quality of government and citizens’ well-being, and rank the EU countries based on it. The dataset refers to variables specific to economic and social wellness (latest year available is 2015), focusing on both, the objective and subjective dimension of the governance and well-being. The results obtained indicate that the countries with the highest performance in terms of the quality of government and citizens’ well-being are Denmark, Sweden, Finland, followed by Austria and the Netherlands. Differences to the rest of the EU member states are based on economic and social policies, as these countries have the highest employment rates and social protection expenditures, focusing on the risks related to unemployment, social exclusion, invalidity or aging to increase citizens’ overall life satisfaction.
Examining Financial Management Practices in the Context of Smart ICT Use: Recent Evidence from Croatian Entrepreneurs
Authors: Karanović Bisera , Nikolić Gordana , Karanović Goran
Published: April 2019

Recent research demonstrates that entrepreneurs who learn contribute to lower failure rates of their startups. Nowhere is this more evident than in the area of financial management, where the entrepreneurs’ lack of skills and competencies – and their willingness to acquire them - can be a critical factor to the success of the business venture. The purpose of this paper is to examine the financial management practices among Croatian entrepreneurs in relation to budgeting, raising capital, cash flow management, and the use of ICT tools for enhanced efficiency of their businesses. The survey was conducted on a sample of 58 entrepreneurs whose answers provide valuable insight into their grasp of financial concepts in the context of smart ICT use. The ensuing analysis of the level of proficiency in combining smart tools with financial management reveals increased adoption of ICT practices for budgeting and purchasing among Croatian entrepreneurs. Additionally, the findings indicate that the entrepreneurs’ acquisition of skills and competencies for smart financial management presents a sound basis for increased overall financial sustainability of the startups.
PROSES PERCEPATAN DIFUSI INOVASI PRODUK SUSU STERILISASI NONTHERMAL
Authors: Makkulawu Andi Ridwan
Published: April 2019

Diffusion of innovation theory essentially describes the process of how an innovation isdelivered (communicated) through certain channels over time to a group of members of thesocial system. In this paper will be presented a study of the diffusion of innovations that resultedfrom the innovative work that milk sterilizer with electric shock (electric milk) to help dairyfarmers in maintaining the quality of milk yield. Analytical methods to accelerate the innovationdiffusion theory of Rogers conducted the assessment associated with knowledge management tomeasure innovation performance. From the results of the study, electric sterilizer milk is aninnovation because they have been commercialized to the public, especially in the MilkProcessing Cooperative (PPP) milk and dairy farmer groups. In functional electrical appliancemilk can be accepted by the public because the operating system can be run automaticallymaking it easier for users of the technology in terms of the operation of the appliance. Toaccelerate the diffusion of innovation will require accelerating the dissemination of tools withtool usage in group level, as did the level rancher PPP.
Evidências científicas acerca da assistência do enfermeiro ao idoso vítima de queda
Authors: Costa Maria dos Milagres Santos da , Júnior José Newton Fernandes da Silva , Ribeiro Ellen Eduarda Santos , Morais Kerolayne Laiz Barbosa de , Almeida Francinalva de , Santos Danielle Christina de Oliveira , Saraiva Kamilla Pinheiro , Rezende Ana Claudia de Andrade
Published: April 2019

Objetivo: Descrever, por meio de evidências científicas, acerca da assistência do enfermeiro diante de pacientes idosos vítimas de quedas. Métodos: Trata-se de uma revisão integrativa da literatura, realizada nos meses de abril a outubro de 2017, desenvolvida em seis etapas segundo Mendes, Silveira e Galvão, com artigos nacionais disponíveis na integra indexados nas bases de dados LILACS, SCIELO e MEDLINE. Ao realizar o cruzamento dos três termos (“Idoso”, “Trauma” e “Enfermagem”), foram encontradas 1068 publicações, entretanto apenas 50 estavam dentro dos critérios de inclusão e apenas cinco foram selecionados para compor a análise e a categorização propostas neste trabalho. Resultados: A análise da distribuição dos artigos possibilitou o agrupamento dos dados em duas categorias: Características e aspectos assistenciais do atendimento de enfermagem ao idoso traumatizado e Reabilitação e reintegração do idoso vítima de trauma. Conclusão: Observou-se que o enfermeiro, a partir da educação em saúde, pode melhorar os cuidados e as orientações com os pacientes idosos vítimas de queda.
O uso das redes sociais para o fortalecimento dos movimentos culturais
Authors: Borges Gleycivânia Pacheon , Guisso Luana Frigulha
Published: April 2019

Objetivo: Este trabalho tem como objetivo contribuir para o fortalecimento dos movimentos culturais mediante ao uso das redes sociais e suas potencialidades. Métodos: Por se tratar de uma revisão de literatura, para este trabalho se fez necessário um levantamento de obras bibliográficas que tratam da cultura e da comunicação digital, a fim de compreender os mesmos. Revisão Bibliográfica: A cultura apresenta-se como um dos principais segmentos de uma cidade ou região, sendo importante a sua valorização e disseminação para toda a comunidade. No cenário atual, emerge a necessidade de se utilizar espaços que contribuam para o fortalecimento desse setor, para isto as redes sociais podem ser um forte aliado na promoção da cultura, contribuindo para o compartilhamento e interação dos indivíduos. Conclusão: Conclui-se que as redes sociais são espaços pertinentes para a interação e o fortalecimento dos movimentos culturais, apresentando-se como uma forma barata e rápida de proliferação das informações.
Chemical Shift Tensors – Why Should We Care?
Authors: Gordon Christopher P. , Copéret Christophe
Published: April 2019

Chemical shift tensors give valuable insights into the nature and the relative energy of frontier orbitals and their analysis allows for rationalizing the reactivities of molecules. In this article, we point out the principles that allow for the analysis of chemical shift. Through selected, illustrative examples we show how one can relate chemical shift to molecular electronic structure and thus to reactivity.
Time Spent in St. Catharines
Authors: Michel David
Published: April 2019

Three small oil paintings on paper, approximately 20 by 13” in size, were created while experimenting with new media and techniques. All three pieces are representations of human figures, which is a study that I often turn to. The intent was to create works which portray different human characteristics.

One painting is a portrait of a person I look up to the most, which is my grandfather. My intention was to capture him being consumed by his genius mind. In order to do so, I created the impression of a blurred image. 

The next piece contains different aspects I've encountered consistently throughout my time spent in St. Catharines. When creating the piece, I used these few aspects, which are street art, snow and isolation, combined with a homeless man I encountered.

My last piece is converting deeper into abstraction, while experimenting with different ways of representing reality.
Manifestos in a Room / Manifestes dans une pièce
Authors: Artists and Authors Multiple
Published: April 2019

In Fall 2018, artist Heather Hart installs a rooftop in the largest room of the Rodman Hall Art Centre for her exhibition Northern Oracle. She asks the question: “What do you want to say? Shout it from the rooftop!”

Throughout history, thinkers, authors and artists have eloquently expressed their views on cultural and social phenomena in manifestoes. The function of a manifesto is to convince a public and encourage creative thinking.

Reflecting on Heather Hart’s exhibition, students in Visual Arts, Studies in Arts and Culture, and French Studies at Brock University transform the Studio Gallery into a “manifesto room” in which they create their own statements, be they poetic, absurd or political, in English or in French. In a space that is both radical and respectful, visitors are invited to experience the pleasurable effects of surprise.   

A l’automne 2018, l’artiste Heather Hart installe le toit d’une maison dans la plus grande salle du Centre d’art de Rodman Hall pour son exposition Northern Oracle. Elle pose ainsi la question suivante : « Que veux-tu dire ? Crie-le sur le toit ! »

Au cours du temps, penseurs, auteurs et artistes ont éloquemment exprimé dans des manifestes leurs vues sur des phénomènes culturels et sociaux. Un manifeste a pour fonction de convaincre un public et d’encourager une pensée créative.

En réponse à l’artiste, des étudiant.e.s d’Arts visuels, Etudes en arts et cultures et Etudes en français transforment la galerie Studio en « pièce manifeste » dans laquelle elles/ils créent  leurs propres déclarations, que celles-ci soient poétiques, absurdes ou politiques, en anglais ou en français. Dans un espace à la fois radical et respectueux, les visiteuses et visiteurs sont invité.e.s à faire l’expérience d’agréables effets de surprise.

Curators / Commissaires – Catherine Parayre and / et Donna Akrey
The Museum in the Hallway 2018-2019
Authors: Artists Multiple
Published: April 2019

The Museum in the Hallway is located in the Department of Modern Languages, Literatures and Cultures, Brock University, Canada. This catalogue reviews the academic year 2018-2018 (Curator Catherine Parayre).
Zakarpatskiy perlit as component of mineral woven fabric material
Authors: Titova O.O. , Chernyak L.P. , Nudchenko L.A.
Published: April 2019

Thanks to the peculiarities of the chemical composition and structure, perlite has received application for manufacturing building materials - thermal insulation and ceramic
Results over of research of the silicate systems with transcarpathian perlite as raw material for making of mineral astringent material are driven. The features of the chemical-mineralogical composition, phase transformations during burning and astringent properties of material at the use of perlite from Beregovsky deposit in composition initial raw material mixtures are shown.
To determine and optimize raw material stock at the production of mineral binder material of low-temperature roasting type of natural or romanticum, a computer program "RomanCem" was used.
After burning with a maximum temperature of 1100°C, the test of the binder material from the investigated 3-component mixtures with Transcarpathian perlite is characterized by differences in phase composition and properties.
When using for the manufacture of mineral binder material of low-temperature firing of a gypsum natural or romantic cement 3-component mixtures based on the limestone system - perlit - clay, the content of Transcarpathian perlite is possible from 4 to 22 mass. %.
Issues in Informing Science and Information Technology - Table of Contents Volume 16, 2019
Authors: Cohen Eli
Published: April 2019

Table of Contents for IISIT Volume 16, 2019
Primer registro de nidificación del zopilote aura (Cathartes aura) en El Salvador
Authors: Arévalo-Ayala Diego , Funes Guillermo
Published: April 2019

El zopilote aura (Cathartes aura) es una de las aves carroñeras más abundantes del continente americano, sin embargo, algunos detalles de su biología reproductiva son totalmente desconocidos en varios países. En febrero de 2018 encontramos un nido con dos huevos en una cavidad rocosa natural en el departamento de Usulután, El Salvador. A partir de esa fecha monitoreamos y documentamos el desarrollo y algunos aspectos conductuales de los polluelos. Los huevos eclosionaron en marzo, y en abril ya había crecimiento de plumas secundarias. Con aproximadamente 36 días de edad, uno de los polluelos desapareció por posible depredación. En mayo, el polluelo restante presentó inicio de crecimiento de plumas en las alas, en la parte dorsal y frontal del cuerpo. Para finales de mayo, el plumaje juvenil era casi completo, y finalmente en junio, el juvenil fue visto fuera de la cavidad alimentándose con otros individuos de C. aura. Esta especie está catalogada como residente en el país, sin embargo hasta la fecha no se habían encontrado nidos ni se conocían detalles del desarrollo de los polluelos.
Coordinated railway traffic rescheduling with the Resource Conflict Graph model
Authors: Toletti Ambra , Laumanns Marco , Weidmann Ulrich
Published: April 2019

The train rescheduling problem is quite a popular topic in the railway research community. Many approaches are available to reschedule traffic in a network partition but very few works address the coordination of these partitions. In railway systems with very dense traffic, e.g. the Swiss one, it is not always possible to partition the network such that the rescheduling algorithms can work on completely independent regions. This paper proposes a coordination approach for adjacent local rescheduling algorithms. These algorithms are based on the Resource Conflict Graph model, which enables the representation of the interlocking system at a very fine granularity. Simulations on data from the Swiss Federal Railways show the validity of this approach in improving the consistency of decisions at the common boundaries of adjacent local rescheduling algorithms.
Undergraduates’ Understanding of Sampling Distribution and Confidence Interval in Statistical Inference
Authors:   The Korea Society Of Educational Studies In Mathematics, Jee Young Myong , Yoo Yun Joo
Published: April 2019

This study is a part of the design research project for the development of informal inferential reasoning. With informal inferential reasoning, students can better learn formal statistical inference, which have been shown in recent statistical education researches. The goal of this study is to investigate how the undergraduates who have not completed basic statistics course understand the sampling distribution and the confidence interval, and to find which misconceptions they have. For this purpose, we developed tasks related to sampling distribution and confidence interval, and conducted the surveys and follow-up interviews with 27 participants selected as the sample. The results were analyzed quantitatively and qualitatively. From the analysis, many participants did not understand the concept of sampling distribution and the confidence interval, and had various misconceptions. The participants showed a tendency to choose a shape similar to the population distribution instead of correct sampling distribution and did not recognize the effect of sample size. They also did not understand that the mean of the sample mean is the same as the mean of the population. In addition, the participants showed errors in interpreting the confidence interval such as a fixed interval without variability, or an interval containing a proportion of elements of the population as much as the confidence level, or an interval containing a proportion of the sample as much as the confidence level. With these findings, implications for the teaching of statistical inference were derived.
The Effect of Mathematics Contents Professional Development Programme for Elementary School Teacher
Authors:   The Korea Society Of Educational Studies In Mathematics, Lee Hwayoung
Published: April 2019

In this study, a teacher training program was designed and analyzed for the purpose of improving the mathematics content knowledge expertise of elementary school teachers. Specifically, the basic program was focused on core contents of domains of the 1st~2nd grade of elementary school mathematics and on how to improve. In intermediate program was about discussion and progressive production on issues in teaching and learning where students' misconceptions or abstractions occur. We conducted basic and intermediate training programs for 474 elementary school teachers. As a result of the training, the participants improved their self-awareness about the specialization of mathematics content and produced excellent improvement method of elementary school math classes. In addition, participants' attitudes toward mathematics lessons and evaluations have changed through training, and they have expressed their will to develop professionalism in the future. Some implications were derived from the discussion based on the analysis of the results of the operation of these primary teachers' math content enhancement programs. First, we need to expand and push for training to improve the speciality of elementary teachers' mathematics content knowledge. Second, we can expand and operate this training program into a program that has strengthened cooperation with teachers and experts. Third, it is necessary to provide customized training programs for each teacher.
STRUKTUR KOMUNITAS MAKROZOOBENTHOS (EPIFAUNA) PADA EKOSISTEM TERUMBU KARANG DI PERAIRAN BEDUKANG KECAMATAN RIAU SILIP KABUPATEN BANGKA
Authors: Putra Nursyah , Wahyu Adi  , Muh Yusuf
Published: April 2019

Benthos adalah salah satu organisme dasar yang biasa ditemukan di daerah terumbu karang. Aktivitas nelayan yang mengelilingi terumbu karang akan berdampak pada tutupan karang juga organisme benthos, yang dapat dilihat dari variabel struktur komunitas. Penelitian ini bertujuan untuk mengetahui kepadatan, keanekaragaman, keseragaman, dan dominasi makrozoobentos (Epifauna) di ekosistem terumbu karang, untuk menganalisis persentase bentuk kehidupan karang dan untuk memeriksa kemungkinan pemanfaatannya. Penelitian ini dilakukan pada Maret 2018 di perairan Bedukang, Riau Silip, Kabupaten Bangka. Metode Belt Transect digunakan untuk pengambilan data makrozoobenthos (Epifauna) dan Line Intercept Transect untuk pengambilan data terumbu karang. Hasil penelitian ini adalah kerapatan makrozoobentos (Epifauna) 3,663 ind / ha di perairan Bedukang. Kepadatan makrozoobentos (Epifauna) paling tinggi adalah Drupella sp. (Kelas Mollusca) adalah 1.575. Nilai keanekaragaman tertinggi di stasiun 4 adalah 2.026 ind / ha, nilai keseragaman tertinggi di stasiun 1 adalah 2.466, dan nilai dominansi tertinggi di stasiun 3 adalah 0.406. Persentase terumbu karang di perairan Bedukang baik dan sedang, persentase tertinggi di stasiun 2 adalah 54,23% dan persentase terendah di stasiun 3 adalah 43,01%. Makrozoobenthos (Epifauna) ditemukan paling banyak digunakan untuk makanan dan paling sedikit digunakan untuk kosmetik.
STATUS KEBERLANJUTAN USAHA GARAM INDUSTRI DI WILAYAH PESISIR KABUPATEN PANGKEP
Authors: Mustakim  , M. Kasnir  , Abdul Rauf
Published: April 2019

Kabupaten Pangkep mempunyai potensi untuk kegiatan usaha tambak garam industri. Usaha garam industri di daerah ini sudah lama dilakukan oleh masyarakat, namun untuk usaha garam industri baru saat ini akan dikembangkan. Permasalahan yang dihadap saat ini adalah masih banyak lahan yang belum dimanfaatkan secara optimal, mutu garam yang rendah, harga jual rendah serta daya serap pasar kurang, oleh karena itu perlu kajian untuk melihat status keberlajutan usaha garam industri. Penelitian ini bertujuan untuk mengetahui status keberlanjutan usaha garam industri di wilayah pesisir Kabupaten Pangkep. Metode analisis yang digunakan dalam penelitian ini yaitu analisis status keberlanjutan dengan pendekatan “sustainability index of salt” hasil modifikasi dari program analisis Rapfish. untuk mengetahui status keberlanjutan usaha garam industri. Berdasarkan hasil analisis status keberlanjutan dengan pendekatan indeks keberlanjutan menunjukkan bahwa nilai dimensi ekologi (56,96) dan dimensi ekonomi (62,92) masing-masing cukup berkelajutan serta dimensi kelembagaan (40,72) masuk dalam kategori kurang berkelanjutan, sedangkan nilai dimensi sosial (84,93) masuk kategori berkelanjutan.
KARAKTERISTIK TINGGI GELOMBANG UNTUK PERENCANAAN BREAKWATER DI PELABUHAN JANGKAR SITUBONDO, JAWA TIMUR
Authors: Rizki Lindra Pratama  , Supriyatno Widagdo  , Rahyono
Published: April 2019

Pada perairan Pelabuhan Jangkar Situbondo, hingga saat ini hanya ada satu bangunan pantai berupa dermaga atau tempat sandar kapal ferry untuk bongkar muat barang, manusia dan lain-lain yang dibangun sejak tahun 1986 dan hanya dilakukan rekonstruksi pada tahun 1998. Oleh karena itu, perlu dilakukan penelitian berupa analisis karakteristik gelombang di perairan tersebut untuk perencanaan bangunan pantai agar keberlangsungan kegiatan bongkar muat di pelabuhan tetap terlindung dari gelombang yang tinggi dan aman. Penelitian ini dilakukan untuk mengidentifikasi karakteristik tinggi gelombang dan pilihan tata letak breakwater yang optimal dalam melindungi perairan Pelabuhan Jangkar. Metode yang digunakan yaitu pemodelan numerik. Data yang digunakan untuk running model yaitu data gelombang hasil peramalan dari data angin. Tinggi gelombang berdasarkan hasil running yaitu, pada kondisi layout eksisting ketinggian gelombang pada daerah alur menuju pelabuhan masih cukup tinggi yaitu 1,41 hingga 1,61 meter. Ketinggian gelombang tersebut dapat direduksi menjadi sebesar 1,21 hingga 1,61 meter untuk daerah alur menuju pelabuhan dan 0,20 hingga 0,47 meter di daerah pelabuhan.
PARAMETER HIDRO-OSEANOGRAFI UNTUK PENENTUAN LETAK PELABUHAN NIAGA DI PERAIRAN MANYAR KABUPATEN GRESIK
Authors: Proto C. R.  , Rahyono  , Supriyatno Widagdo
Published: April 2019

Penelitian ini bertujuan untuk mengkaji parameter hidro-oseanografi dalam menentukan letak pelabuhan niaga di Perairan Manyar Kabupaten Gresik. Penelitian ini menggunakan metode deskriptif analisis. Hasil penelitian menunjukkan bahwa tinggi gelombang maksimum pada musim barat Januari 2013 dan 2014 masing-masing dengan tinggi 2,10 m dan 1,94 m. Pada musim timur, tinggi gelombang maksimum sebesar 1,1 m dan 3,1 m terjadi pada Juli 2013 dan Juli 2014. Kondisi arus dominan menuju timur dengan kecepatan maksimum 286 cm/s. Pasang surut memiliki nilai HHWL, MSL dan LLWL masing – masing 155 cm, 105 cm dan 38 cm dengan nilai formzhal 2,11 menjelaskan pasang surut tunggal dengan pasang harian tunggal pada satu hari, namun hari tertentu terdapat dua kali pasang dan dua kali kembali.
KAITAN FASE IOD DENGAN FAKTOR MET-OCEAN DI PERAIRAN BARAT DAN SELATAN SUMATERA
Authors: Taruna Ananda Rizki , Widagdo Supriyatno , Prasetyo Eko
Published: April 2019

Tujuan kajian ini adalah untuk identifikasi fase Indian Ocean Dipole (IOD), yang dipakai untuk mengetahui keterkaitan interaksi antara faktor meteorologi dan oseanografi. Identifikasi menggunakan korelasi Pearson, sedangkan analisis spasial menggunakan Inverse Distance Weight (IDW). Kajian dilakukan di Perairan Barat dan Selatan Sumatera. Fase IOD tahun 2015 dan 2010 terjadi 2 kali fase. Fase IOD negatif (-) normal tahun 2015 selama 2 periode yakni Februari-Maret, IOD positif (+) selama 10 periode dan IOD positif lemah terjadi selama 6 periode mulai Juni hingga November. Tahun 2010 kejadian IOD positif selama 10 periode, fase normal 8 periode dan fase lemah selama 2 periode (Maret-April). Konfigurasi tahun 2015 saat IOD negatif normal berkorelasi sangat sempurna terhadap seluruh parameter pada Musim Barat, koefisien seluruh parameter yakni direntang 0,8≤r≤1. Interaksi saat IOD fase positif lemah yakni berkorelasi sangat kuat terhadap curah hujan, berkorelasi baik terhadap kecepatan angin yang meningkat dan cukup baik terhadap penurunan SST selama Musim Timur. Periode tahun 2010 kejadian IOD positif lemah terjadi di Musim Peralihan, sifat hubungan terhadap curah hujan Nias-Padang sangat kuat sedangkan hubungan korelasi terhadap lainya sangat buruk. Fase IOD negatif terjadi selama Musim Peralihan 2, hubungan korelasi terhadap seluruh parameter tidak dapat dijadikan acuan karena hanya terdapat 2 variansi data bulanan. Berdasarkan hasil analisis, karakteristik fase IOD tahun 2015 lebih terlihat jelas mengakibatkan perubahan faktor met-ocean.