An Assessment of Global Research Activities on Children and Adolescent Online Security

The use of the Internet among children and adolescents is now a norm in many parts of the world. As the Internet offers a wide range of benefits to these ones, so does it expose them to possible various risks and harm. Researchers in different countries across the world have engaged in the production of relevant research-based knowledge in order to make the virtual world a safe place for the younger ones. However, while studies have been carried out on the subject of Internet risk among children and adolescents, there is a dearth of information on the assessment of research activities across different parts of the world. The present study employed Bibliometric techniques to determine research productivity patterns across the different regions and countries of the world. All relevant publications indexed in Google Scholar were collected between November and December, 2018. The findings of the study reveal that while countries in the American and European regions of the world have been very productive in researching on the subject, the same is not the case with their African counterparts

BIBLIOMETIRC ANALYSIS OF SICKLE CELL ANAEMIA LITERATURE ON NIGERIA LISTED IN PUBMED BETWEEN 2006 AND 2016

This paper analysed Sickle cell anaemia literature on Nigeria listed in PubMed to understand the research performance of medical researchers on sickle cell anaemia literature on Nigeria. Data covering the period of 2006-2016 were collected from the PubMed, a citation database developed by the National Centre for Biotechnology Information (NCBI).The search strategy used was ((sickle cell anaemia) OR (sickle cell anemia)) AND Nigeria AND (( 2006/01/01 [PDat] : 2016/12/31 [PDat])), bearing in mind variance in spelling (anaemia and anemia), which retrieved 326 sickle cell literature on Nigeria between 2006 and 2016. Article productivity increased between 2006 and 2010. However, there was a drastic drop in article publication between 2010 and 2011 as well as between 2013 and 2015. The degree of collaboration ranged between 0.85 and 1. University of Nigeria Teaching Hospital, Enugu, Nigeria, had the highest number of contributing authors. Authors published more in journals located in Nigeria, with Nigeria Journal of Clinical Practice being the most prolific publication outlet for authors publishing sickle cell anaemia literature on Nigeria

INFLUENCE OF GENDER, WORK ENVIRONMENT, LENGTH OF SERVICE AND AGE OF ACADEMIC STAFF ON ATTITUDE TO WORK

Workers attitude to work is a thing of concern to all management of organization. The present study investigated the influence of four socio-demographic variables (gender, work environment, length of service and age) on attitude to work of academic staff in two universities. The study employed an ex-post facto research design using accidental sample to select 100 participants for the study. Questionnaire on the attitude to work self report was used as an instrument to collect data and response from the participants. Four hypotheses were tested in this study and data collected were analyzed using independent t-test and one-way Analysis of Variance (ANOVA). Results showed that socio-demographic variables have no significant influence on attitude to work. Findings were discussed in line with the existing literatures. Based on findings, it is concluded that socio-demographic variables are important in attitude to work of academic workers

Career Considerations in Journalism among Female Mass Communication Students of Redeemers University

From the inception of Journalism as an area of specialization in Mass Communication studies among Nigerian universities in the 1960s, enrolments have been largely populated by female students. Studies have found that only few of these female students opt for a career in journalism upon graduation. This study sought find out the perception of female students of Mass Communication on the career opportunities for the female journalist in Nigeria, if these students would consider a career in journalism, the specific career options they would consider, and the factor(s) that inform their decision. It is an important area study, as the findings provide significant information of relevance to the development of journalism in Nigeria. Adopting the survey research methodology, a sample size of 100 female students was randomly selected from a population of 163 female students across the four levels (100 – 400) from Redeemers University (RUN). The findings reveal that the students are not oblivious of the fact that career development for female journalists in Nigeria is challenged by the fact that they do not enjoy the same career opportunities as their male counterpart, and the family responsibility of a woman also makes it difficult to adequately fulfil the career expectations required in journalism. However, majority (63%) of them perceive Journalism to be a good profession for women, and 58% would positively consider a career in journalism, especially in the area of photojournalism. Majority (52%) of these students are interested in journalism because it would afford them the opportunity to gain diversified knowledge. Keywords: Journalism, Mass Communication, Career Opportunities and Options, Photojournalis

Shape memory polymer review for flexible artificial intelligence materials of biomedical

The self-healing and biocompatibility of polymer composites for biomedicine have made them a preferred approach for small-scale tissue engineering elements. By moving from static to dynamic pressure, 4D printing simulates the natural physical-mechanical changes of living tissue over time. A promising new platform with excellent controllability actuation is required to enhance the significance of 4D printing for biological applications. This study systematically analyses current 4D printing technologies for the flexible fabrication of artificial intelligence (AIM) materials. In addition, many potential applications of flexible 4D printing in composite biological engineering are thoroughly investigated. We found that knowledge about this new category of flexible AIM composites is relatively limited, and the potential for practical applications has not yet been demonstrated. Finally, we discuss the problems and limitations of flexible 4D printing technology, AIM, and future approaches and applications.</p

Influence of Job Demand and Employment Status on Marital Conflict and Marital Satisfaction among Women in Ekiti State, Nigeria

Abstract The study examine

Entropy Generation of Graphene Nanoplatelets in Micro and Mini Channels: Nanofluid Flow in Automotive Cooling Applications

The present study examines the entropy generation of graphene nanoplatelet (GnP) suspended in different basefluids, theoretically. GnP in water (W), ethylene glycol (EG) and ethylene glycol- water (EGW, 1:1) was examined under laminar flow state in a unit length mini and micro-channel of 3mm and 0.05mm diameter. The coefficient of conductivity (Ck) and viscosity (Cμ) of the nanofluid were determined from experimental analysis and their order of magnitude were established for analysis of entropy generation in mini and micro-channels. Entropy generation by fluid friction (Sgen, ff) in the channels containing EG was higher than with W and EGW by 75.6% and 79.9%, respectively. Thermal irreversibility (Sgen, th) of W was lower by132.9% and 58.2% compared to EG and EGW. Sgen,th in all the fluids decreased with increased solid volume fraction in minichannels, while, Sgen,ff increased with increase in volume fraction for micro-channels. Total entropy generation (Sgen, tot) of water was lower by 75.6% and higher by 64.8% compared to EG and EGW, respectively in a micro-channel, whereas Sgen, tot of water was lower by 123.7% and 38.4% compared to EG and EGW, respectively. As GnP volume fraction was increased in the basefluids, entropy generation ratio decreased, highlighting the positive influence of thermal properties of the nanofluid. A lower Bejan number for water (Bew), 36.8% and 358.9% were observed compared to EG and EGW in microchannel, whereas Bew was lower by 3.8% and 13.8% when compared to EG and EGW nanofluids in the mini channel

Experimental and Mathematical Modeling for Prediction of Tool Wear on the Machining of Aluminium 6061 Alloy by High Speed Steel Tools

In recent machining operation, tool life is one of the most demanding tasks in production process, especially in the automotive industry. The aim of this paper is to study tool wear on HSS in end milling of aluminium 6061 alloy. The experiments were carried out to investigate tool wear with the machined parameters and todevelopedmathematicalmodelusingresponsesurface methodology.Thevariousmachiningparametersselected fortheexperimentarespindlespeed(N),feedrate(f),axialdepthofcut(a)andradialdepthofcut(r).Theexperimentwasdesignedusingcentralcompositedesign(CCD) inwhich31sampleswererunonSIEG3/10/0010CNCend milling machine. After each experiment the cutting tool wasmeasuredusingscanningelectronmicroscope(SEM). Theobtainedoptimummachiningparametercombination arespindlespeedof2500rpm,feedrateof200mm/min, axialdepthofcutof20mm,andradialdepthofcut1.0mm wasfoundouttoachievedtheminimumtoolwearas0.213 mm. The mathematical model developed predicted the toolwearwith99.7%whichiswithintheacceptableaccuracyrangefortoolwearpredictio