bluuebunny/crossref_metadata_2025 huggingface dataset:
Cross-Regional Analysis of Terrorism Reporting and Dynamics of Ethnic Relations in Nigeria
Authors: Morah Doris Ngozi , Oladokun Omojola
Published: September 2020

The news sociology and news determinism perspectives do project both the integrationist and disintegrative capabilities of the media. This projection is premised on their agenda-setting tradition, meaning that the social responsibility performance credential of the reporter can help build a nation or be a factor of the collapse of social control. This work explores this oxymoron by examining terrorism reporting and how it impacts on ethnic relations among the three dominant regions in Nigeria. A total of 400 respondents from Southeast and Southwest Nigeria respond to seven items on their relationship with the Northern Region that has been affected by the activities of the terror group Boko Haram. The findings portray a violent nature of the Northern Region. However, they do not support six of the media-framed and widely-held assumptions by the southerners about the conflict, including the statement that the insurgents represent northerners' interest. The media can scale down ethnic tension by publishing and framing stories that promote de-escalation.
An Intelligent Stock Trading Decision Support System Using the Genetic Algorithm
Authors: Aloud Monira Essa
Published: September 2020

The authors present a simple data-driven decision support system for stock market trading using multiple technical indicators, decision trees, and genetic algorithms (GAs). It assembles technical indicators set into a decision tree based on stock trading rules and generates buy, hold, and sell classes that represent trading decisions. The main contribution of this study is the use of GAs based on a two-step classification method. This allows for selecting the relevant inputs and adapting them to the market dynamic. The GAs are used at the data input selection step and the weight selection step. Classifiers of different technical indicators are trained in the first step and combined into the trading rules in the second step. Random sampling and data input selection techniques were used to ensure the required variety of technical indicators in the first step. An evaluation shows that the proposed algorithm improved forecasting accuracy from 73.6% to 81.78%.
A Distributed Fuzzy Multi-Agent-Based System in Collaborative Technology Strategy Making
Authors: Ebrahimi Maryam
Published: September 2020

This study aims to design and implement a new collaborative and integrated multi-agent system (MAS) to support chief executive officers (CEOs) of small-medium enterprises (SMEs) in formulating and implementing the right technology strategy (TS) in the renewable energy (RE) sector. In this regard, the TS requirements and methods are examined, and TSs are presented in two types of general TSs and specific TSs, including research strategies, investment strategies, and technology sourcing strategies, and also, system architecture is explained. Developing a novel comprehensive TS model for SMEs in the RE industry to provide a clear explanation of the systematic TS planning process and designing and implementing a distributed support system for facilitating collaboration between decision makers and TS negotiation are the most important contributions of this paper. In addition to developing existing knowledge about the importance of MAS for TS planning, the present study makes CEOs able to improve the process.
The Pathos and Logos Affecting Online Purchasing Behavior
Authors: Verma Vishal , Anand Swati , Mishra Kushendra
Published: September 2020

The objective of this research paper was to exfoliate the pathos (sad appeal to emotions) and logos (appeal to logic) affecting online purchasing behaviour among smart phone users in India via the mediating role of logos. To achieve the above objective, the authors use the exploratory research design. They propose a model comprising the pathos, logos, and online good purchasing (OGP). They have applied the structural equation modelling, the practical implication of which will be beneficial not only for the online customers, but also for the e-commerce companies. The findings concluded that there was a positive relationship between pathos and online goods purchasing, hence accepting the H1. They found a significant relation between Pathos and OGP. MedH2 is also accepted as we found there exists partial mediation by the mediating variable. Hence, the independent variables (pathos) exerts partial influence on the dependent variables online goods purchasing through the mediating variable (logos).
Food Purchase Using Food Delivery App and Gender Influence
Authors: Natesan Vanitha , Venkatesalu Sripriya
Published: September 2020

Evolution of various apps on smartphones attracts tech-savvy customers to explore the online market. Developments and social changes are one of the factors contributing to food delivery apps. The sample population consists of undergraduate and postgraduate college students from Coimbatore city. The study aims to explore the gender influence in online food purchase using food delivery apps. Non-probability convenience sampling technique is adapted to select the sample and structured questionnaire was administered to collect the data. The study identifies that there is a difference in gender and frequency in placing orders, choosing food delivery app and issues faced, preferring different food delivery apps, factors influencing the selection of service providers. The respondents are having more than one app to place orders. There is equality among both the gender regarding reasons to prefer the same app and expecting service quality of the food delivery apps. The change in the culture has taken place slowly by e-retailing in the city where family values and tradition is respected more.
The Role of Absorptive Capacity and Firm Openness Strategies on Innovation Performance
Authors: Kashosi Gad David , Wu Yang , Getele Gutama Kusse , Bianca Epede Mesumbe , Irakoze Eric
Published: September 2020

Openness and absorptive capacity are both based on the notion that organizations can use external knowledge to increase their innovation outcome. The objective of this paper is to investigate the joint effect of openness strategies, firms' absorptive knowledge capacity, and the innovation performance of SMEs in a developing country. By using structural equation modeling (SEM) through PLS, the results show that internal practices and means for attracting external knowledge improve innovation performance and indicate that absorptive capacity mediates open search breadth and partially open search depth to affect innovation performance. These results highlight the additional nature of absorptive capacity and reinforce the knowledge of scholars in particularly developing countries.
Co-Diffusion Effects in Software Sourcing Arrangements
Authors: Dayyala Niharika , Arslan Faruk , Walstrom Kent A. , Bagchi Kallol K.
Published: September 2020

This study analyzes the temporal diffusion of software sourcing arrangements by applying innovation diffusion theories. The study tests the co-diffusion effects 1) between onshoring and offshoring and 2) between insourcing and outsourcing. The results from the analysis indicate the existence of one-way complementary co-diffusion effects between on-shoring and offshoring and between outsourcing and in-housing. Positive, significant effects of innovation were found for in-housed, on-shored, and offshored software projects. Furthermore, a negative, significant effect of imitation was found for outsourced software projects. Indications were co-diffusion effects are stronger than diffusion effects.
A Survey of Recommendation Systems
Authors: Malik Sushma , Rana Anamika , Bansal Mamta
Published: September 2020

Today's internet is able to discover almost any product or piece of information. The large amounts of unfiltered information returned by an internet query calls for filters able to validate and rank the available options. Recommender systems (RSs) are a software tool designed to qualify the options available and make suggestions that align with the user's requirements and expectations. This paper reviews some significant applications of RSS in various areas like videos, music, eCommerce sites, news, and many more. It also reviews various filtering techniques like collaborative, content based, and hybrid.
A Methodological Approach for Mining the User Requirements Using Apriori Algorithm
Authors: Soni Anuja , Saxena Anand , Bajaj Parul
Published: September 2020

Users of enterprise software are multiple, and their requirements are diverse. Often their specifications are masked by mundane details and at times are vague too. Acknowledging these complexities in requirements engineering, the paper proposes a multistage methodological approach based on Apriori algorithm, a data mining technique. It extracts useful information from the given data on the criteria of mutual association and sufficient frequency. The user requirements captured through interviews and brainstorming are pre-processed for eliminating unnecessary stop words and developing a uniform structure of small stories. Mutual association and occurrence of the requirements are represented through association rules and rule metrics, for example, ‘Lift', ‘Support', and ‘Confidence'. The requirements having strong and moderate association are placed in ‘Top Priority List'; those with nominal, weak, or nil association are placed in ‘Low Priority List'. Gap analysis is employed to validate the defined requirements with respect to stakeholders' expectations. The complete and correct lists of requirements significantly influence the client satisfaction, software development process, and its eventual success.
The Intricacies of Trust in Technology
Authors: Mishra Aditya
Published: September 2020

The aim of this paper is to demonstrate the intricacies of trust in an institutional setting with the help of a case entailing a clash between Apple and the FBI in a situation that was both politically and emotionally complex. The review of literature covers an extensive amount of academic papers to encapsulate each and every aspect of trust ranging from simple characterization of the concept to the deep-seated complexities of the matter like the effect of ethnicity on trust or the neurological effects during a breach of trust. Finally, it identifies serious gaps in research that are needed to be worked upon by other researchers to further our understanding of the matter.
Decision Framework for Engaging Cloud-Based Big Data Analytics Vendors
Authors: Ayaburi Emmanuel Wusuhon Yanibo , Maasberg Michele , Lee Jaeung
Published: September 2020

Organizations face both opportunities and risks with big data analytics vendors, and the risks are now profound, as data has been likened to the oil of the digital era. The growing body of research at the nexus of big data analytics and cloud computing is examined from the economic perspective, based on agency theory (AT). A conceptual framework is developed for analyzing these opportunities and challenges regarding the use of big data analytics and cloud computing in e-business environments. This framework allows organizations to engage in contracts that target competitive parity with their service-oriented decision support system (SODSS) to achieve a competitive advantage related to their core business model. A unique contribution of this paper is its perspective on how to engage a vendor contractually to achieve this competitive advantage. The framework provides insights for a manager in selecting a vendor for cloud-based big data services.
Critical Factors Influencing the Intention to Adopt m-Government Services by the Elderly
Authors: Talukder Md. Shamim , Chiong Raymond , Corbitt Brian , Bao Yukun
Published: September 2020

While the elderly population is growing rapidly, acceptance and use of m-government services by them are far below expectation. Previous studies on acceptance and use of m-government services have predominantly focused on younger citizens with skills and experience of information technologies. Drawing upon the dual factor model, this study investigates the enablers and inhibitors of the elderly's m-government service adoption behavior. Four constructs from the unified theory of acceptance and use of technology (UTAUT), namely, performance expectancy, effort expectancy, facilitating conditions, social influence; and self-actualization are treated as enablers, while user resistance to change, technology anxiety, and declining physiological conditions are regarded as inhibitors. Results show that adoption of m-government by the elderly is significantly influenced by all tested enablers and inhibitors, except for social influence. This study contributes by providing an integrative model of technology acceptance for the elderly along with practical implications for policy makers.
Career Anchors of IT/IS Personnel
Authors: Chang Christina Ling-hsing , Shen Kathy Ning , Wu Sheng
Published: September 2020

While career anchors have mainly studied in the US society; this study demonstrates the difference in the career anchors of the information technology/information system (IT/IS) personnel rooted in different cultures. The survey was conducted in the PRC (202), Taiwan (145), India (223), the UAE (167), and the US (122) totaling 859 respondents. This study examines the relationship between the guanxi culture, career anchor, job satisfaction, and turnover intention among these five cultural societies' IT/IS personnel. The result shows that the guanxi culture has a different effect on each career anchor, and each one also has a different effect on job satisfaction in the five different cultural societies as well; thus, they have different results in the research model. Also discussed are the implications of the study and its contribution to the research and management practice.
Of onions and men: Report of cavitary community acquired pneumonia due to Burkholderia cepacia complex in an immunocompetent patient and review of the literature
Authors: Manglani Ravi , Sherman Ester , Shengelia Anna , Epelbaum Oleg
Published: September 2020

Burkholderia cepacia complex consists of highly antibiotic resistant gram negative bacilli that are plant symbionts and also potential agents of human infection.  This bacterial family’s claim to fame in clinical medicine is as the scourge of cystic fibrosis patients, in whom it is a notorious respiratory pathogen.  Outside of cystic fibrosis, it rarely comes to mind as an etiology of community acquired pneumonia with or without lung cavitation in immunocompetent hosts.  We describe a case of an otherwise healthy, community-dwelling man who presented with subacute cavitary lung disease, the causative organism of which turned out to be Burkholderia cepacia complex.  Our report is accompanied by a review of the literature, which identified an additional eleven cases in the same category.  We analyze all of the available cases for the emergence of any identifiable patterns or peculiarities.
Telemedicine during COVID-19: a survey of Health Care Professionals’ perceptions
Authors: Elawady Abdula , Khalil Ahmed , Assaf Omar , Toure Samirah , Cassidy Christopher
Published: September 2020

The National Health Service (NHS) has rapidly adopted telemedicine solutions as an alternative to face-to-face consultations during the COVID-19 pandemic. The majority of HCPs (Healthcare Professionals) were unfamiliar with Telemedicine prior to the current pandemic. Remote consultation is expected to continue for the foreseeable future, thus we designed this survey. A survey designed to evaluate the use of telephone consultation by HCPs, assessing its implementation, challenges and drawbacks. A web link survey conducted through SurveyMonkey was sent to HCPs across six UK Trusts the period of May 2020. The survey received 114 responses (84%) being doctors. 95% of respondents had not received training prior to engaging in telemedicine consultations. 64% were unaware of the updated General Medical Council guidance concerning remote consultations. The most common barrier in remote consultation was the inability to access patient records raised by 37% of respondents. However, 73% of respondents felt that patients understood their medical condition and the instructions given to them over the phone, and 70% agreed that videoconference consultations would add to patients care. Telemedicine can be used for selected groups of patients in the post COVID-19 era, and the HCPs carrying that should have the sufficient experience and knowledge expected to operate these clinics.
The pharmacological management of depression – Update 2017
Authors: Osuch Elzbieta , Marais Andre
Published: September 2020

Depression affects nearly 350 million people worldwide. Local data indicates that approximately 17% of all South Africans will experience at least one episode of depression in their lifetime. Depressive disorders contribute significantly towards overall morbidity and increased risk for suicide. Antidepressant therapy remains one of the cornerstones in the management of depressive disorders. Although the efficacy of antidepressive drugs is continuously subjected to criticism, thousands of controlled clinical trials have shown, and will continue to show, their benefit in the effective treatment of depressive disorders. Since the introduction of antidepressants in the early 1950s, researchers have been searching for an ideal antidepressant able to adequately reduce, preserve and prevent features of depression with the absence of side effects. This article summarizes the currently available antidepressant drugs in South Africa. Discontinued products have been omitted and newly registered agents have been added. This review does not contain reference to any experimental drug, or substances not yet available for local use.
Nutritional status and metabolic risk in HIV-infected university students: challenges in their monitoring and management
Authors: Steenkamp L , Truter I , Williams M , Goosen A , Oxley I , Van Tonder E , Kock S , Venter D J L
Published: September 2020

Objective: This study aims to describe challenges in the management of HIV-infected university students focusing on their nutritional status and metabolic risk.

Methods: A cross-sectional, descriptive study design was used to assess the anthropometry, food intake and clinical status of a cohort of known HIV-infected registered students at a South African university.

Results: Participants n = 63) had a mean CD4 cell count of 411 (SD = 219.9) cells/mm3, a mean body mass index (BMI) of 28.05 (SD = 7.9) kg/m2 and only half of the participants (n = 31) were on antiretroviral therapy (ART). A higher BMI (> 25 kg/m2) was significantly (p < 0.05; V = 0.32) associated with higher CD4 cell counts of > 350 cells/mm3. Some 40% (n = 25) of students were at risk for metabolic complications based on their waist circumference and 11% (n = 7) had clinical signs of lipodystrophy. The ‘obese’ group consumed a mean energy intake of 24 kcal/kg bodyweight which was lower than the ‘overweight’ and normal weight groups.

Conclusions: In total 51% of HIV-positive students in the sample presented with signs of metabolic complications. Side effects of ART can be prevented and/or treated by regular physical activity, adequate nutritional intake, monitoring of side effects and BMI, combined with optimal care and support.

(Full text of the research articles are available online at www.medpharm.tandfonline.com/ojfp)

S Afr Fam Pract 2017; DOI: 10.1080/20786190.2016.1248143
Travel vaccines: information for health care workers
Authors: Schellack Natalie , Van der Sandt N , Modau T , Poplar T , Meyer J C
Published: September 2020

Travel and volume of passengers and goods carried continue to expand in reach as more sophisticated air, sea and land transport networks develop. People are travelling for business and leisure, taking with them pathogens and their vectors bringing about diseases such as the global influenza pandemics. This review briefly examines some of the important vaccine preventable diseases related to travel. We then outline diseases known to Africa and other similar parts of the world, and potential approaches for preventing these conditions. The paper provides practical advice for health care workers when consulting with the international traveler and hence may strengthen the battle against vaccine preventable diseases.
Gastro-oesophageal reflux: an overview of the pharmacotherapeutic treatment options
Authors: Malan L , Labuschagne Q , Schellack N , Schellack G , Meyer J C
Published: September 2020

Gastro-oesophageal reflux disease (GORD) produces symptoms that cause great irritation to the patient. Pharmacotherapeutic management is directed at minimising these symptoms and reducing the causative factors, e.g. acid production, thereby providing relief. Currently available agents include simple antacids and acid suppression therapy, including histamine 2-receptor antagonists, proton pump inhibitors, mucosal or cytoprotective agents and pro-motility agents. Deciding on appropriate therapy will depend on the diagnosis, side-effects and cost-effectiveness of the treatment.
Bipolar disorder: an update
Authors: Outhoff Kim
Published: September 2020

Bipolar disorder, characterised by alternating discrete episodes of (hypo)mania and depression, provides unique diagnostic and treatment challenges. Updated diagnostic (DSM-5) and current pharmacological treatment recommendations are briefly reviewed here.
Social determinants of health: time for action
Authors: Ogunbanjo Gboyega A
Published: September 2020

By the time, you receive this issue of the journal, the joint 5th WONCA Africa and 20th South African Academy of Family Physicians conference would have ended in Pretoria South Africa on 20 August 2017. The theme of the joint conference forms the basis of this editorial. So what is “Social Determinants of Health (SDH)”? The World Health Organization (WHO) defines it as the conditions in which people are born, grow, live, work and age. These circumstances are shaped by the distribution of money, power and resources at global, national and local levels. The SDH are mostly responsible for health inequities – the unfair and avoidable differences in health status seen within and between countries. It is acknowledged that “health equity and social determinants” are critical components of the post-2015 sustainable development goals (SDG) global agenda and of the push towards progressive achievement of universal health coverage (UHC). If we have to reduce health inequities, the approach will be to address both SDH and UHC in an integrated and systematic manner.1
О топологии некомпактных односвязных однородных многообразий
Authors: Gorbatsevich Vladimir Vitalyevich
Published: September 2020

Изучаются ковариантные расслоения (расслоения Мостова) для односвязных однородных многообразий. Установлена их связь с однородными расслоениями. Рассмотрены различные классы однородных многообразий, для которых расслоение Мостова тривиально или же нетривиально. Приведена классификация некомпактных односвязных однородных многообразий, размерность которых не больше семи.
Библиография: 24 наименования.
Progress towards eliminating tuberculosis in Ga West Municipality, Ghana: analysis of tuberculosis surveillance data, 2017
Authors: Tender Emmanuel , Atasige Stephen , Bandoh Delia , Ameme Donne , Afari Edwin , Nortey Priscillia , Kenu Ernest
Published: September 2020

Objective: To assess the progress made towards the actualization of the 80% reduction in incident cases, monitor trends and to assess the quality of GWM TB surveillance data from 2012 to 2016.Design: The study was descriptive secondary data analysisData Source: Tuberculosis cases recorded in the District Health Information Management Systems (DHIMS) and municipal TB registers. The Municipal TB Coordinator was interviewed for clarification on the data. A TB patient was defined as one who coughed persistently for two weeks or more.Main outcome measure: Trend of TB cases in Ga West MunicipalityResults: A total of 441 TB cases were registered of which 68.9% were smear positive. Males were (67%). Age group 35-44 years were the most affected (28.6%). The incidence rose from 21.5 (2012) to 41.6 (2015). The 2016 incidence was 40.7 (± 5.63) per 100,000 population. This is significantly different from the current national incidence of 156 (p < 0.05). Data was 95% complete. Discrepancies existed between data in registers compared to the DHIMS but were not statistically significant.Conclusion: The 80% reduction in incident cases target may not be attained by the GWM due to the rising number of incident cases. However, data quality is good.Keywords: Tuberculosis, data analysis, DHIMS 2, tuberculosis, incident casesFunding: The study was funded by the authors
Geospatial clustering of meningitis: an early warning system (hotspot) for potential meningitis outbreak in upper east region of Ghana
Authors: Akyereko Ernest , Ameme Donne , Nyarko Kofi , Asiedu-Bekoe Franklin , Sackey Samuel , Issah Kofi , Wuni Baba , Kenu Ernest
Published: September 2020

Objective: We mapped and generated hot spots for potential meningitis outbreak from existing data in Upper East region, Ghana.Design: This was a cross-sectional study conducted in 2017Data Source: Meningitis data in the Upper East Region from January 2007, to December 2016.Main outcome measure: We used spatial tools in Quantum Geographic Information System (QGIS) and Geoda to draw choropleth map of meningitis incidence, case fatality and hotspot for potential meningitis outbreak

Results: A total of 2312 meningitis cases (suspected and confirmed) were recorded from 2016-2017 with median incidence of 15.0cases/100,000 population (min 6.3, max 47.8). Median age of cases was 15 years (IQR: 6-31 years). Most (44.2%) of those affected were 10 years and below. Females (51.2%) constituted the highest proportion. Median incidence from 2007-2011 was 20cases/100,000 population (Min 11.3, Max 39.9) whilst from 2012-2016 was 11.1cases/100,000 populations (Min 6.3, Max 47.8). A total of 28 significant hotspot sub-districts clusters (p=0.024) were identified with 7 High-high risk areas as potential meningitis outbreak spots.Conclusion: The occurrence of meningitis is not random, spatial cluster with high –high-risk exist in some sub-districts. Overall meningitis incidence and fatality rate have declined in the region with district variations. Districts with high meningitis incidence and fatality rates should be targeted for intervention.Keywords: meningitis outbreak, geospatial clustering, Upper East Region, meningitis incidence, GhanaFunding: Author EA was supported by the West Africa Health Organization (Ref.: Prog/A17IEpidemSurveillN°57212014/mcrt).
Bir Kültün Özellikleri: Türklerde Su Kültü
Authors: UÇAR Hüseyin
Published: September 2020

Dünyadaki muhtelif kültürlerin, doğal yaşamın vazgeçilmezi olan su öğesine yükledikleri anlamlar, suyun zaman içerisinde ilahi bir özellik kazanmasına ve “kült” olarak anılmasına sebep olmuştur. Türk kültüründeki uygulamalara baktığımızda da bu durum geçerliliğini korumaktadır. Su Kültü, özellikle İslamiyet öncesi Türk topluluklarının kutsallık atfettikleri nesneler arasında önemli bir yere sahiptir. Türkler nehir, göl, deniz, akarsu, bataklık, ırmak, çay gibi su kaynaklarının özel güçleri olduğuna ve içlerinde bir ruh barındırdıklarına inanmış, çeşitli şekillerde bunları kutsamışlardır. Bu inanç Türklerin, Eski Türk dininden sonra benimsedikleri İslam, Hristiyanlık, Musevilik, Budizm, Maniheizm gibi diğer dinler bünyesinde de varlığını sürdürmüştür. Türk tarihi, mitoloji ve destanlarına baktığımızda su kültünün muhtelif şekillerde Türk devlet anlayışı ve toplum hayatında çeşitli görevler üstlendiğini görürüz. Türk toplulukları suyu kutsal kabul etmekle beraber onu kendi hayatlarını düzenleyen, yardım eden, düşmanlarına karşı galip gelmesini sağlayan, hayat veren, zorluklardan kurtaran ve cezalandıran bir unsur olarak görüp adeta kendi sosyal yaşantılarının bir parçası haline getirmişlerdir. Bu makalede öncelikle evrensel olarak su kültünün sahip olduğu simgesel anlamlar ortaya konmuş, ardından bu anlamların Türk kültüründe nasıl algılandığı konusunda örnekler verilmeye çalışılmıştır.
Military museums in Poland – between the past and the future
Authors: Chylińska Dagmara , Musiaka Łukasz
Published: September 2020

Museums are a constantly developing segment of cultural tourism. Poland is in line with current trends in museums, expanding its offer and adapting it to the requirements of the world of contemporary image culture and multisensory experiences, which is increasingly dominated by technology. The authors of the paper undertook to recognise the specificity of military museums, by conducting a survey of approximately a third of all such institutions in Poland. Due to the subject-matter of their exhibitions, military museums create a broad field of research both in terms of aesthetics and museum practice, as well as the issues of shaping and maintaining collective memory and the identity of the nation. They form a special mirror in which the country’s ideas and aspirations are reflected more often than any real characteristics. In reference to contemporary trends in museums, the article aims to place Polish military museums between locality and universality, education and entertainment, stability and dynamism, knowledge and experience. The results obtained allowed the authors to distinguish three groups of military museums in Poland, as well as indicate conditions conducive to the further development of such attractions in the country.
Modern and Contemporary Art in the Russian Museum Context
Authors: Biryukova Marina V.
Published: September 2020

The article considers contemporary and modern art in Russia as reflected in museum curatorial projects. The concepts of large-scale museum exhibitions are based on certain categories that correspond to following qualities: the connection with the centuries-old tradition, myth-making, ludic aspects and internationality – openness to the perception of other cultures. The article analyses exhibition projects in the beginning of the twentieth century, in which contemporary art is demonstrated in the space of tradition, the media context, the everyday context and the context of cultural myths and symbols. The problem of determination of the aesthetic value of contemporary art is stressed in the space of the museum, and represented artworks receive a bigger expressiveness in the neighborhood of works of traditional art. Exhibition curators effectively use aesthetic and formal contrasts; sometimes classical artworks themselves suggest new ways of understanding meanings, hypothetically included in contemporary art – as seen in the projects at the Hermitage, the State Russian Museum and the State Tretyakov Gallery, where curators can unite or contrast tradition and modernity.
Protection of the Polish written and printed heritage – National Library Resource
Authors: Fluda-Krokos Agnieszka
Published: September 2020

Written and printed works are one of the most important cultural achievements of every country and nation. This often priceless heritage is protected, among other things, by libraries which are responsible for collecting, preparing, storing, protecting and sharing their collections. The article focuses on one form of protection of these resources – the Polish National Library Resource (NLR), which has a legal basis and gives examples of good practice. The analysis presented in this paper covers the normative Acts that cover only those collections which are unique and exceptionally valuable for Polish culture. It was found that perception of these special collections has changed and that nowadays there are only a small number of libraries that take part in the NLR programme.
Between East and West: Karel Chytil as Museologist, Educator, and Art Historian
Authors: Šopák Pavel
Published: September 2020

Adapted version of the text presented at the colloquium organised in Prague on 12 November 2019 by the Institute of Art History of the Czech Academy of Sciences (CAS) on the 85th anniversary of PhDr. Karel Chytil’s death. The text deals with the institutional and cultural political aspects of Chytil’s career as an art historian, museologist, and lecturer.
Prilog novinarskom pitanju
Authors: Zebić Enis
Published: September 2020

Temeljem tridesetogodišnjeg novinarskog iskustva u dnevnom novinarstvu autor analizira neke segmente hrvatskog medijskog prostora, a posebnu pozornost posvećuje nužnosti većeg profesionalizma i odgovornijem odnosu prema činjenicama. Nedostatna razina profesionalizma našla je plodno tlo na nasljeđu žutog, neprofesionalnog i mrzilačkog novinarstva u nekim mainstream medijima početkom devedesetih.
Utjecaj društvenih mreža na samopoštovanje i mentalno zdravlje mladih
Authors: Jerončić Tomić Iris , Mulić Rosanda , Milišić Jadrić Antonija
Published: September 2020

Samopoštovanje je procjena vlastitog samopouzdanja u tri dimenzije: fizički izgled, romantična atraktivnost te sposobnost formiranja i održavanja bliskih prijateljstava. To je način na koji ljudi percipiraju vlastitu vrijednost i misle da su vrijedni drugima. Društvene mreže su medij na kojem imamo priliku oblikovati sliku o sebi stvaranjem jedinstvenih profila kako bismo prikazali željenu sliku o sebi. Pojedinci komuniciraju i angažiraju se u živote drugih ljudi pomoću slika koje su stvorili o njima, otkrivanjem osobnih detalja i stvaranja uvida u živote drugih. Upotreba društvenih mreža ima negativne i pozitivne učinke. Osobnost i razina samopoštovanja su utjecajni čimbenici komunikacije pojedinca s drugim ljudima.
Performance Evaluation of Genetic Algorithm and Simulated Annealing in Solving Kirkman Schoolgirl Problem.
Authors: Oyeleye Christopher A , Dayo-Ajayi Victoria O , Abiodun Emmanuel , Bello Alabi O
Published: September 2020

This paper provides performance evaluation of Genetic Algorithm and Simulated Annealing in view of their software complexity and Simulation runtime. Kirkman Schoolgirl is about arranging fifteen schoolgirls into five triplets in a week with a distinct constraint of no two schoolgirl must walk together in a week. The developed model was simulated using Matlab version R2015a. The performance evaluation of both Genetic algorithm and Simulated Annealing was carried out in terms of program size, program volume, program effort and the intelligent content of the program. The results obtained show that the runtime for GA and SA are 11.23sec and 6.20sec respectively. The program size for GA and SA are 2.01kb and 2.21kb, respectively. The lines of code for GA and SA are 324 and 404, respectively. The program volume for GA and SA are 1121.58 and 3127.92, respectively. The program effort for GA and SA are 135021.70 and 30633.26 respectively, while the intelligent content of the program for GA and SA are 72.461 and 41.06, respectively. Both Algorithms are good solvers, however it can be concluded that Genetic Algorithm outperformed simulated Annealing in most of the evaluated parameters. Keywords:   Genetic Algorithm, Simulated Annealing, Kirkman Schoolgirl, software complexity and simulation runtime
Performance Evaluation of the Effect of Sodium Hydroxide on Geotechnical Properties of Lateritic Soil for Rural Road Construction
Authors: Abdulkarim Ibrahim I , Umar Sa’eed Y
Published: September 2020

This study explored the potentials of sodium hydroxide (NaOH) for the improvement of the properties of lateritic soil (LS) intended for use as construction material for rural roads in the North-eastern part of Nigeria. The soil was classified as A-6(13) and CL according to the American Association of State Highway and Transport Officials (AASHTO M 145-2012) and the Unified Soil Classification System (ASTM D 2487-2011). The soil is treated to evaluate the effectiveness of NaOH in treating lateritic soil with 1, 3 and 7 molar concentration of NaOH and compacted using two methods of compaction, the British Standard Light (BSL) and British Standard Heavy (BSH). Unconfined compressive strength (UCS) and Californian bearing ratio (CBR) tests were conducted on the compacted specimens. The results obtained show a general improvement in the engineering properties of the soil with increase in molar concentration of NaOH, particularly, when compacted at the BSH energy level. The maximum 7 days UCS values of 909 kN/m2 and 1106 kN/m2 were obtained at 7 molar concentration for the BSL and BSH energy levels. These values are within the range of 750 – 1500 kN/m2 UCS value specified by the Nigerian General Specification (2013) for sub-base materials. In the case of the CBR, at 3 and 7 molar concentrations for BSH effort, CBR values of 33% and 38% were recorded while 34% CBR value was recorded at 7 molar concentration for BSL effort, these values also met the minimum requirement of 30% CBR specified by the Nigerian General Specification for sub-base construction.Keywords— Lateritic, Sodium hydroxide, Soil, Rural roads.
Effect of Some Thermodynamic Properties of Cutting Fluids on Machinability of Carbon Steel
Authors: Abdulkareem Sulaiman , Babatunde Moshood A , Ogedengbe Temitayo S , Adegun Isaac K
Published: September 2020

Cutting fluids are used to reduce heat generated during machining, however some have been discovered to pose health challenges hence the search for viable alternatives. In this paper, three machining conditions (dry machining, wet machining with soluble oil and wet machining with used-engine oil) were conducted on high carbon steel, with a sole aim of investigating the suitability of engine oil as an alternative to soluble oil. Measurements related to effective use of oil as metal cutting fluids were determined and the machining parameters used were cutting speed (750 – 1750 rpm), feed rate (40 – 120 mm/rev), and depth of cut (0.1 – 0.3 mm). The experimental procedure was formulated using Minitab software version 18 and the machining responses investigated were maximum temperature at the cutting interface, surface roughness, and tool wear rate (TWR). Thermodynamic properties investigated include, flashpoint, specific heat capacity, viscosity and density. The experimental results showed that cutting temperature reduced from an average of 440oK during dry machining to 369.8oK (16% improvement) during machining with used-engine oil and 362.6oK (18% improvement) during machining with soluble oil. The surface roughness produced was generally higher while machining with used-engine oil with an average improvement of 39% in surface integrity. However, when soluble oil was used as cutting fluid, average improvement in surface integrity increased to 70%. Hence, used-engine oil offered impressive lubricating and cooling properties and could replace soluble oil as a cutting fluid during machining.Keywords—Cutting Fluid, Cutting Speed, Machining, Surface Roughness, Tool Wear
Suitability Assessment of Selected Lateritic Soils For Highway Construction In Anambra State, Nigeria
Authors: Nwaiwu Charles M.O. , Chidera Ibeawuchi S , Uzodinma Franklin C
Published: September 2020

Fifteen samples of coarse-grained lateritic soils obtained from different parts of Anambra State were assessed for their suitability as materials for highway construction. The soil samples were subjected to laboratory tests to obtain their index properties, compaction and California bearing ratio (CBR) characteristics. Three compactive efforts namely, British Standard Light (BSL) compaction, West African Standard (WAS) and British Standard Heavy (BSH) compaction were employed in the compaction tests. Samples were soaked for 48hrs prior to CBR testing. The index properties of the soils were used to classify the soils as   silty sand (SM) or silty sand/clayey sand (SM-SC) based on the Unified Soil Classification System (USCS) classification as well as silty soils (A – 4) or silty/clayey gravel and Sand (A – 2 -4) based on American Association of State Highway and Transportation Officials (AASHTO) classification. All the fifteen soils fell under “grading F” based on AASHTO standard specification designations for particle size distribution. The maximum dry unit weight (MDUW) of the soil samples ranged from 16.203 kN/m3 to 19.424 kN/m3,17.385 kN/m3 to 19.996 kN/m3 and from 18.126 kN/m3 to 21.473 kN/m3 with  corresponding optimum moisture content of 11.4% to 21.4%, 12.45% to 12.5%  and 8.5% to 11.75% for BSL, WAS and BSH respectively. The CBR values ranged between 7.92% and 18.87%. Most of the soil (more than 50%) did not meet the lower values of MDUW while only 20% of the soils had CBR values above 10% which is specified for subgrade soils by the AASHTO standard and the Nigerian Highway Design Manual, Federal Ministry of works and Housing.Keywords: coarse-grained, lateritic soils, highway pavement materials, USCS, AASHTO
Determination of Sorptivity, Infiltration Rate and Hydraulic Conductivity of Loamy Sand using Tension Infiltrometer and Double-Ring Infiltrometer
Authors: Yusuf Kamorudeen O , Obalowu Rasheed O , Akinleye Gideon T , Adio-Yusuf Selia I
Published: September 2020

This study was conducted to assess the effectiveness and accuracy of tension infiltrometer (TI) over double ring infiltrometer (DI) for determining infiltration rate (I) of loamy sand. Sorptivity (S), infiltration rate and hydraulic conductivity (K) are soil properties that govern the rate of entry of water into the soil and its movement within the soil. The ease and accurate measurement of these properties depend on the instruments used. DI operates by ponding water and could be affected by preferential water flow during infiltration test which could not be avoided especially on a fertile soil. DI and TI at water potentials of -0.02, -0.04, -0.05 and -0.06 m were used to determine infiltration rate of the soil. The mean values of sorptivity for DI and TI at water potentials of -0.02, -0.04, -0.05 and -0.06 m were 847.02, 63.50, 33.15, 29.90 and 19.46 mm/h1/2, respectively. Mean values of infiltration rates for DI and TI at -0.02, -0.04, -0.05 and -0.06 m water potentials were 471.26, 176.84, 73.73, 71.32 and 37.73 mm/h, respectively. Mean values of hydraulic conductivity for DI and TI at -0.02, -0.04, -0.05 and -0.06 m were 344.45, 22.42, 18.61and 16.83 mm/h, respectively. DI required 100-150 litres for the infiltration test, difficult where water is very scarce and gave higher values of infiltration rate. TI saved water (2-3 litres), controlled preferential water flow and values of S, I and K were within the range obtained by other researchers. TI is more effective for measuring hydraulic properties soil than DI.Keywords:Double ring infiltrometer, tension infiltrometer, sorptivity, infiltration rate, hydraulic conductivity
Geoelectric Investigation of the Groundwater Potential of the Federal Housing Estate, Eastern Part of Ado-Ekiti, Southwestern Nigeria
Authors: Olaseeni Olayiwola G , Oyebamiji Ajibola , Olaoye Oluwaseun , Ojo Bosede , Akinlalu Ayokunle
Published: September 2020

This study aimed at evaluating the potential for groundwater development in the eastern part of Ado-Ekiti, Southwestern Nigeria using Vertical Electrical Sounding (VES). Data were acquired with ABEM SAS 300 and processed through partial curve matching techniques and assisted with 1-D forward modelling. Geoelectric parameters were determined from the VES interpreted result. Seven (7) different VES type curves (H, A, HA, KH, HK, QH and HKH) indicating inhomogeneity of the subsurface layer beneath the study area were observed. Weathered layer resistivity map having values ranging from 3.2 – 272 Ωm, overburden thickness of value vary between 0 and 28m and  bedrock relief values range from 360 – 480 m were delineated. It was estimated from the result that the northwestern and southeastern part which constituted about 15%of the study area possess high groundwater potential while the remaining 85% of the study area exhibit low/moderate potentials for yielding substantial water. Hence, the groundwater potential rating of the area was considered generally low.Keywords- Geoelectric, Groundwater potential, Overburden thickness, Vertical Electrical Sounding
Agricultural Wastes Conversion into Bio-fertilizer using Vermicomposting Method
Authors: Orhevba Bosede A , Adeoye Peter , Ejiofor Ebuka , Gomina Ahmed
Published: September 2020

In this study, agricultural waste materials (fresh and dried plantain peels and fresh and dried potato peels) were placed in four plastic bins labelled A1, A2, B1 and B2 respectively and vermicomposted into bio-fertilizer. The earthworms used for the study, Eudrilus eugeniae, were introduced into the bins at a ratio of 5:1 (waste/worm) in grams. The moisture content, temperature and pH level in the system were monitored for a study period of 15 days. At the end of the study period, the vermicasts produced were collected from each bin and analysed for Nitrogen, Phosphorus and Potassium concentration. Sample A1 (fresh plantain peel) had the maximum concentration of nitrogen, phosphorus and potassium with a value of 0.20%, 0.05% and 0.40% respectively. While sample B1(fresh potato peel) had 0.11% N, 0.04% P and 0.30% K; A2 (dried plantain peel) had 0.09% N, 0.02% P, and 0.30% K; and B2 (dried potato peel) had 0.13% N, 0.02% P, and 0.10% K. The results also revealed that vermicomposting reduced the mass of all the samples with a reduction of 48%, 45%, 53% and 49% for A1, A2, B1 and B2 respectively. The data obtained were statistically analysed using ANOVA to ascertain the significant effect of the types of peels on the NPK contents; Duncan multiple range test was also used to check if the differences in mean values obtained were significant. The concentration (in ratio) of N-P-K for the vermicompost are; A1 4:1:8, A2 5:1:15, B1 3:1:8 and B2 7:1:5, in comparison with the inorganic fertilizer with ratio 1:1:1. This indicated that the concentration (in ratio) of N-P-K is higher in the vermicompost than inorganic fertilizer. Therefore, vermicomposting is a promising alternative technology for the treatment of agricultural wastes into nutrient rich bio-fertilizer, it is eco-friendly, cheaper and more sustainable.Keywords - Earthworm, plantain peel, potato peel, vermicast, vermicomposting,
Development of a Wheelchair Automator
Authors: Badejoko-Okunade Adeniran , Adekunle Adefemi , Arowolo Oluwole , Adejuyigbe Samuel
Published: September 2020

The first wheelchair model could be traced to the 5th, 6th and later in 18th century. However, tremendous development and great achievements in this field started mid of 20th century. Since that time, varieties of models have been designed, leading to wide range of products. This work involves the development of an automator (ergonomically attachment) to convert a manual wheelchair into an electric wheelchair for domestic use by Nigerian physically disabled people who could not pay the high cost of a ready-made motorized or an electric-powered wheelchair. A gear motor and drive system has been integrated in this automator for convenience and easy control for the user. Two units of 12v batteries and breaking system has also been integrated into this work and by this, obtained an automatic wheelchair which can be driven with the possibility of avoiding obstacles by the use of the obstacle detection components. In addition, obstacle detection component is also incorporated to the system to serve as added alert feature in case the wheelchair is been used by a blind user. The automator which is attached to the wheelchair has been developed to enhance easy and long distance movement. It helped the disabled move around without external interference. A manual wheelchair does not give sufficient mobility, it has a limited range and is very difficult to use on rough and harsh terrain. This work is designed as a solution to this problem by combining the comfort and maneuverability of a wheelchair with the capability and efficiency to move about. This work will benefit the physically challenged people.Keywords—Automator, obstacle detection, electric-powered wheelchair, wheel chair, mobility.