Digital Commons Network^™

Identity, Language And Collaboration In Indigenous Music, Clint Bracknell

Research outputs 2014 to 2021

I begin this chapter by arguing against any sort of prescriptive definitions for Indigenous Australian music. I will then illustrate change in public discourse on Indigenous music by examining the Australian Recording Industry Association (ARIA) awards for Best Indigenous Release (1987-1998) and for Best World Music Album (1999-2016). The chapter then proceeds to highlight two increasingly common features of the work of Indigenous musical artists: reference to one's specific Indigenous cultural identity (e.g. Noongar, Bundjalung, Yorta Yorta) in popular music performance, and writing and performing popular music in Indigenous languages. The chapter concludes by illustrating how frequently Indigenous artists collaborate …

Transition To Grandparenthood And Subjective Well-Being In Older Europeans: A Within-Person Investigation Using Longitudinal Data, Antti O. Tanskanen, Mirkka Danielsbacka, David A. Coall, Markus Jokela

Research outputs 2014 to 2021

The transition to grandparenthood, that is the birth of the first grandchild, is often assumed to increase the subjective well-being of older adults; however, prior studies are scarce and have provided mixed results. Investigation of the associations between grandparenthood and subjective well-being, measured by self-rated life satisfaction, quality of life scores, and depressive symptoms, used the longitudinal Survey of Health, Ageing and Retirement in Europe from 13 countries, including follow-up waves between 2006 and 2015 (n = 64,940 person-observations from 38,456 unique persons of whom 18,207 had two or more measurement times). Both between-person and within-person (or fixed-effect) regression …

Australian Vegetated Coastal Ecosystems As Global Hotspots For Climate Change Mitigation, Oscar Serrano, Catherine E. Lovelock, Trisha B. Atwood, Peter I. Macreadie, Robert Canto, Stuart Phinn, Ariane Arias-Ortiz, Le Bai, Jeff Baldock, Camila Bedulli, Paul Carnell, Rod M. Connolly, Paul Donaldson, Alba Esteban, Carolyn J. Ewers Lewis, Bradley D. Eyre, Matthew A. Hayes, Pierre Horwitz, Lindsay B. Hutley, Christopher R. J. Kavazos, Jeffrey J. Kelleway, Gary A. Kendrick, Kieryn Kilminster, Anna Lafratta, Shing Lee, Paul S. Lavery, Damien T. Maher, Núria Marbà, Pere Masque, Miguel A. Mateo, Richard Mount, Peter J. Ralph, Chris Roelfsema, Mohammad Rozaimi, Radhiyah Ruhon, Cristian Salinas, Jimena Samper-Villarreal, Jonathan Sanderman, Christian J. Sanders, Isaac Santos, Chris Sharples, Andrew D. L. Steven, Toni Cannard, Stacey M. Trevathan-Tackett, Carlos M. Duarte

Research outputs 2014 to 2021

Policies aiming to preserve vegetated coastal ecosystems (VCE; tidal marshes, mangroves and seagrasses) to mitigate greenhouse gas emissions require national assessments of blue carbon resources. Here, we present organic carbon (C) storage in VCE across Australian climate regions and estimate potential annual CO₂ emission benefits of VCE conservation and restoration. Australia contributes 5–11% of the C stored in VCE globally (70–185 Tg C in aboveground biomass, and 1,055–1,540 Tg C in the upper 1 m of soils). Potential CO₂ emissions from current VCE losses are estimated at 2.1–3.1 Tg CO₂-e yr^-1, increasing annual CO …

The Owner-Manager’S Role As A Facilitator Of Informal Learning In Small Businesses, Alan Coetzer, Andreas Wallo, Henrik Kock

Research outputs 2014 to 2021

Few studies have examined the owner-manager as a facilitator of learning in small businesses. Furthermore, these studies are typically not framed by distinctive characteristics of small businesses. These limitations of the literature stimulated us to ask: How do the situational opportunities and constraints that emanate from the distinctive characteristics of small businesses affect the small business owner-manager’s role as a facilitator of learning? To address this question, we first conducted a narrative review of existing research on the owner-manager as facilitator of learning in small businesses (10–49 employees). Four themes emerged from our analysis of research findings, including a theme …

Assessing The Utility Of Multiplexed Liquid Chromatography-Mass Spectrometry For Gluten Detection In Australian Breakfast Food Products, Haili Li, Utpal Bose, Sally Stockwell, Crispin A. Howitt, Michelle Colgrave

Research outputs 2014 to 2021

Coeliac disease (CD) is an autoimmune disorder triggered by the ingestion of gluten that is associated with gastrointestinal issues, including diarrhea, abdominal pain, and malabsorption. Gluten is a general name for a class of cereal storage proteins of wheat, barley, and rye that are notably resistant to gastrointestinal digestion. After ingestion, immunogenic peptides are subsequently recognized by T cells in the gastrointestinal tract. The only treatment for CD is a life-long gluten-free diet. As such, it is critical to detect gluten in diverse food types, including those where one would not expect to find gluten. The utility of liquid chromatography-mass …

Plasma Neurofilament Light Chain And Amyloid-Β Are Associated With The Kynurenine Pathway Metabolites In Preclinical Alzheimer's Disease, Pratishtha Chatterjee, Henrik Zetterberg, Kathryn Goozee, Chai K. Lim, Kelly R. Jacobs, Nicholas J. Ashton, Abdul Hye, Steve Pedrini, Hamid R. Sohrabi, Tejal Shah, Prita R. Asih, Preeti Dave, Kaikai Shen, Kevin Taddei, David B. Lovejoy, Gilles J. Guillemin, Kaj Blennow, Ralph N. Martins

Research outputs 2014 to 2021

BACKGROUND: Blood markers indicative of neurodegeneration (neurofilament light chain; NFL), Alzheimer's disease amyloid pathology (amyloid-β; Aβ), and neuroinflammation (kynurenine pathway; KP metabolites) have been investigated independently in neurodegenerative diseases. However, the association of these markers of neurodegeneration and AD pathology with neuroinflammation has not been investigated previously. Therefore, the current study examined whether NFL and Aβ correlate with KP metabolites in elderly individuals to provide insight on the association between blood indicators of neurodegeneration and neuroinflammation.

METHODS: Correlations between KP metabolites, measured using liquid chromatography and gas chromatography coupled with mass spectrometry, and plasma NFL and Aβ concentrations, measured using …

Fake News And Propaganda: Trump’S Democratic America And Hitler’S National Socialist (Nazi) Germany, David E. Allen, Michael Mcaleer

Research outputs 2014 to 2021

This paper features an analysis of President Trump’s two State of the Union addresses, which are analysed by means of various data mining techniques, including sentiment analysis. The intention is to explore the contents and sentiments of the messages contained, the degree to which they differ, and their potential implications for the national mood and state of the economy. We also apply Zipf and Mandelbrot’s power law to assess the degree to which they differ from common language patterns. To provide a contrast and some parallel context, analyses are also undertaken of President Obama’s last State of the Union address …

Protocol For The Electroencephalography Guidance Of Anesthesia To Alleviate Geriatric Syndromes (Engages-Canada) Study: A Pragmatic, Randomized Clinical Trial, Alain Deschamps, Jordan Oberhaus, Angela Mickle, Arbi Ben Abdallah, Michael S Avidan, Et Al.

2020-Current year OA Pubs

No abstract provided.

Population Data Centre Profile - The Western Australian Data Linkage Branch, Steve Hodges, Tom Eitelhuber, Alexandra Merchant, Janine Alan

Research outputs 2014 to 2021

Established in 1995, the Western Australian Data Linkage Branch (DLB) is Australia’s longest running data linkage agency. The Western Australian Data Linkage System (WADLS) employs an enduring linkage model spanning over 60 data collections supported by internally developed and supported software and IT infrastructure. DLB has delivered, and continues to deliver, a range of significant data linkage innovations, many of which have been adopted elsewhere. A current restructure within the Western Australian Department of Health (which we will refer to as the Department of Health) will provide an improved funding model geared toward addressing issues with staff retention, capacity and …

Applications Of The Reflective Practice Questionnaire In Medical Education, Shane L. Rogers, Lynn E. Priddis, Nicole Michels, Michael Tieman, Lon J. Van Winkle

Research outputs 2014 to 2021

Background: We sought to determine whether the Reflective Practice Questionnaire (RPQ) is a reliable measure of reflective capacity and related characteristics in medical students. We also planned to learn how the RPQ could be used in medical education. Methods: The RPQ is a 40 item self-report questionnaire that includes a multi-faceted approach to measuring reflective capacity. It also includes sub-scales on several other theoretically relevant constructs such as desire for improvement, confidence, stress, and job satisfaction. The reliabilities of reflective capacity and other sub-scales were determined by calculating their Cronbach alpha reliability values. In the present study, the RPQ was …

Toward A Model Of Destination Resident–Environment Relationship: The Case Of Gulangyu, China, Lujun Su, Songshan (Sam) Huang, Joanna Pearce

Research outputs 2014 to 2021

This study tested an integrative model to better understand residents’ environmentally responsible behaviour (RERB) and willingness to sacrifice for the environment (WTS) using a sample of 430 residents on Gulangyu Island in China. Results show that destination environmental quality and eco-friendly reputation directly affected resident environmental identification and environmental commitment. Destination eco-friendly reputation directly influenced RERB and WTS. Both resident environmental identification and commitment directly affected RERB and WTS. Furthermore, environmental identification and environmental commitment fully mediate the effects of environmental quality on RERB and WTS, and partially mediate the effects of destination eco-friendly reputation on RERB and WTS. © …

Green-Tinted Glasses: How Do Pro-Environmental Citizens Conceptualize Environmental Sustainability?, Hannah V. Uren, Peta L. Dzidic, Lynne D. Roberts, Zoe Leviston, Brian J. Bishop

Research outputs 2014 to 2021

Recent research has shown that many Australians see pro-environmental behaviour as desirable and identify as being green. However when compared to other countries, Australians score poorly on pro-environmental behaviour measures, engaging mostly in tokenistic pro-environmental actions, and demonstrate low levels of concern for the environment. In this article, we examine this tension through exploring the meaning of the term sustainability to Australian participants who self-identify as pro-environmental. Twenty-six interviews were conducted and analysed using a causal layered analysis. Through the examination of participants’ environmental discourse and practices, some of the deeper socio-psychological processes influencing pro-environmental behaviour are revealed. While participants …

Food-Insecure Household’S Self-Reported Perceptions Of Food Labels, Product Attributes And Consumption Behaviours, Lucy M. Butcher, Maria M. Ryan

Research outputs 2014 to 2021

Dietary compromises related to food insecurity profoundly undermine health and constitute a serious public health issue, even in developed nations. The aim of this study was to explore the impact of food labelling and product attributes on the purchasing choices of food-insecure households in Australia. An online survey containing 19 food choice and 28 purchasing behaviours questions was completed by 1056 adults responsible for household grocery shopping. The short form of the US Household Food Security Survey Module was used as the food security indicator. Multinomial logistic regression modelling was employed to analyse the survey data. Respondents were classified as …

Ladies, Gentlemen And Guys: The Gender Politics Of Politeness, Sonam Pelden, Elizabeth Reid Boyd, Madelena Grobbelaar, Kwadwo Adusei-Asante, Lucy Hopkins

Research outputs 2014 to 2021

Are there ladies and gentlemen in the 21st century? Do we need them? In the 20th century, lady became particularly unpopular with second wave feminists, who preferred ‘woman’. Gentleman was seen as similarly politically incorrect: class, race and culture bound. Following previous research on the word lady, we explore here some current evocations and debates around these words. We consider how the more casual, etymologically gendered term ‘guy’ has been utilized for men and women, and how it functions to reflect and obscure gender. While the return of the lady might be considered a consumer fad, a neo-conservative post-feminist backlash, …

Fingerprinting Blue Carbon: Rationale And Tools To Determine The Source Of Organic Carbon In Marine Depositional Environments, Nathan R. Geraldi, Alejandra Ortega, Oscar Serrano, Peter I. Macreadie, Catherine E. Lovelock, Dorte Krause-Jensen, Hilary Kennedy, Paul S. Lavery, Michael L. Pace, Joeri Kaal, Carlos M. Duarte

Research outputs 2014 to 2021

Blue carbon is the organic carbon in oceanic and coastal ecosystems that is captured on centennial to millennial timescales. Maintaining and increasing blue carbon is an integral component of strategies to mitigate global warming. Marine vegetated ecosystems (especially seagrass meadows, mangrove forests, and tidal marshes) are blue carbon hotspots and their degradation and loss worldwide have reduced organic carbon stocks and increased CO₂ emissions. Carbon markets, and conservation and restoration schemes aimed at enhancing blue carbon sequestration and avoiding greenhouse gas emissions, will be aided by knowing the provenance and fate of blue carbon. We review and critique current …

Association Of Phlebotomus Guggisbergi With Leishmania Major And Leishmania Tropica In A Complex Transmission Setting For Cutaneous Leishmaniasis In Gilgil, Nakuru County, Kenya, Barrack O. Owino, Damaris Matoke-Muhia, Yasser Alraey, Jackline Milkah Mwangi, Johnstone M. Ingonga, Philip M. Ngumbi, Aitor Casas-Sanchez, Alvaro Acosta-Serrano, Daniel K. Masiga

All Peer-Reviewed Publications

Background Phlebotomus (Larroussius) guggisbergi is among the confirmed vectors for cutaneous leishmaniasis (CL) transmission in Kenya. This scarring and stigmatizing form of leishmaniasis accounts for over one million annual cases worldwide. Most recent CL epidemics in Kenya have been reported in Gilgil, Nakuru County, where the disease has become a public health issue. However, little is known about the factors that drive its transmission. Here, we sought to determine the occurrence, distribution and host blood feeding preference of the vectors, and to identify Leishmania species and infection rates in sandflies using molecular techniques. This information could lead to a better …

Hematologic, Biochemical, Genetic, And Histological Biomarkers For The Evaluation Of The Toxic Effects Of Fipronil For Rhamdia Quelen, Ana Carolina Fredianelli, Victor Hugo Pierin, Samara Caroline Uhlig, Luciana Do Amaral Gurgel Galeb, Daniel Carlos Coatti Rocha, Deivid Roni Ribeiro, Amanda Anater, Claudia Turra Pimpão

Turkish Journal of Veterinary & Animal Sciences

This study aimed to determine the lethal concentration 50% (LC$_{50}$) and behavioral, hematological, biochemical, histopathological, and genetic disorders of fipronil for Rhamdia quelen in acute toxicity tests for 96 h. To determine the LC$_{50}$, 42 juveniles were distributed in groups of 0, 0.1, 0.2, 0.3, 0.4, 0.5, and 0.8 mg L$^{-1}$ of fipronil. For other evaluations 36 silver catfish were divided into control, 0.3 mg L$^{-1}$, and 0.4 mg L$^{-1}$ groups. Blood, kidneys, livers, and gills were collected for evaluation. The LC$_{50}$ calculated with probit-type regression was 0.811 mg L$^{-1}$ at 48 h of study. There was total mortality of …

Biodiversity And Characterization Of Gram-Positive, Catalase-Positive Cocci Isolated From Pastırma Produced Under Different Curing Processes, Kübra Fettahoğlu, Kübra Çi̇nar, Mükerrem Kaya, Güzi̇n Kaban

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the effects of different curing temperatures (4 °C or 10 °C) and agents (KNO$_{3}$ or NaNO$_{2}$) on microbiological and physicochemical properties of pastırma and diversity of gram-positive, catalase-positive cocci (GCC$^{+}$) and also to investigate some technological properties of the strains. Four different groups of pastırma were produced applying different curing temperatures and agents. After production, $GCC^{+}$ isolated from pastırma were subjected to phenotypic and genotypic (16S rRNA sequencing) identification. Genotypically characterized strains were evaluated for their technological properties. In all groups, a$_{w}$ and pH were observed to be under 0.90 and over …

Accumulation And Histological Transformation In The Gills, Liver, Muscles, And Skin In Oreochromis Niloticus Induced By Mercury, Khalid Abdullah Al-Ghanim, Zubair Ahmad, Hmoud Fares Alkahem Al-Balawi, Fahad Al-Misned, Shahid Mahboob, El Amin Mohammad Suliman

Turkish Journal of Veterinary & Animal Sciences

Specimens of Oreochromis niloticus (One control and 3 experimental groups) were fed diets mixed with different doses of mercury (control group = free of mercury; group 1 = 500 mg/kg; group 2 = 750 mg/kg, and group 3 = 1000 mg/kg) for 60 days in order to study its accumulation and histopathological alterations in the liver, gills, skeletal muscles, and skin. The results obtained revealed that mercury accumulation was significantly (P < 0.05) high in the liver and gills compared to the muscles and skin. The order of accumulation in these organs revealed to be liver > gills > muscles > skin. The fish fed various doses of mercury also showed histological alterations in these organs. Epithelial lifting and epithelial hypertrophy were seen in the gills of the …

Ethnoveterinary Medicine In Turkey: A Comprehensive Review, Zeynep Büşra Erarslan, Şükran Kültür

Turkish Journal of Veterinary & Animal Sciences

Today, traditional societies throughout the world possess a wealth of ethnoveterinary knowledge, which they have accumulated during prolonged interaction with nature. Turkey has ample resources of ethnoveterinary medicines as evident from its rich floral diversity and traditional botanical knowledge from the past. This review aims to compile herbal remedies used in ethnoveterinary medicine in Turkey with comprehensive usage information and to compare our findings with pharmacological studies. The botanical, family, and local names; used parts; preparation methods; administration/dosage and duration of the treatment; and ailments treated/therapeutic effects were presented by screening ethnobotanical and ethnoveterinary studies. The most cited plant families, …

Phylogenetic Analyses Of P32, Rpo30, Gpcr, Orf117, And Kelch-Like Genes Of Tunisian Sheeppox Virus Isolates, Jihene Lachheb, Aicha Turki, Houssem Mastour, Jihene Nsiri, Imen El Behi, Imen Labri, Abdeljelil Ghram

Turkish Journal of Veterinary & Animal Sciences

Sheeppox is an economically important disease of small ruminants caused by the sheeppox virus (SPPV). Sheeppox virus (SPPV), goatpox virus, and lumpy skin disease virus are capripoxviruses, antigenically related but genetically distinct. Their differentiation requires analysis at a molecular level. Eleven sheeppox virus isolates from five different regions of Tunisia were collected between 2010 and 2016. SPPV was detected by real-time PCR using SYBR Green technology. Primers amplifying the entire Kelch-like gene were designed. Then the GPCR, RPO30, P32, ORF117, and Kelch-like genes were molecularly analyzed to show the different specific lineage patterns of each species. Phylogenetic analyses revealed three …

Negative Effects Of Occurrence Of Clinical Mastitis From Calving To End Of The Voluntary Waiting Period On Reproduction In Holstein Cows, Seçki̇n Salar, Oğuz Çalişici, Duygu Çalişici, Doğukan Özen, Ayhan Baştan

Turkish Journal of Veterinary & Animal Sciences

The objective was to evaluate the effects of clinical mastitis (CM) on reproductive performance in high-milk?producing cows before the service period. The data of Holstein Friesian cows (n = 550) in a commercial farm was retrospectively evaluated. The diagnosis of CM was made by the presence of visible abnormalities in milk or symptoms of inflammation of one or more of the quarters. Cows were checked to detect CM prior to each milking. Calving to first service interval (CFSI), calving to conception interval (CCI), and services per conception (SC) were evaluated as reproductive parameters. Calving to first service interval (83.68 ± …

No Human Ever Made A Cathedral Such As This: Scoping The Ecology Of The Carols By Candlelight Effect In Australia’S Open-Air Environments, Robin Ryan

Research outputs 2014 to 2021

During Australia’s dry December, traditional and popular forms of caroling shape the sight and sound of the key Christian festival of Christmas. Creative connections between belief, place, and music are characteristically manifest in focused open-air environments of beach, bushland or park. Reasoning from gospel belief that the very first “Christmas carol” emanated from a heavenly host of angels singing to an audience of shepherds in a field, caroling alfresco is an appropriate activity. How, then, do Australian caroling venues become conducive to environmental spheres of sound and influence? While the annual mass Carols by Candlelight concerts televised from Melbourne and …

Welcome To The Peoples Of The Mountains And The Sea: Evaluating An Inaugural Indigenous Cultural Festival, Robin Ryan, Uncle Ossie Cruse

Research outputs 2014 to 2021

No abstract provided.

Performing ‘Teacher’: Exploring Early Career Teachers’ Becomings, Work Identities And The [Mis-]Use Of The Professional Standards In Competitive Educational Assemblages, Kirsten Lambert, Christina Gray

Research outputs 2014 to 2021

This paper explores the relationship between early career teachers’ (ECTs) work identities, neoliberal education assemblages, and mandated professional standards. The task of supporting and retaining beginning teachers has received considerable attention in recent years in the face of alarming rates of teacher attrition internationally. The study, undertaken in Western Australia, explores how ECTs construct identities in response to competitive educational discourses, high levels of individual stress, insecure employment, excessive work-loads and limited formal support. The Australian Professional Standards are an example of ‘organisational learning’ that aims to support ECTs. However, our research suggests that in practice a managerial ‘tick the …

The Effect Of Volunteers’ Care And Support On The Health Outcomes Of Older Adults In Acute Care: A Systematic Scoping Review, Rosemary Saunders, Karla Seaman, Renée Graham, Angela Christiansen

Research outputs 2014 to 2021

Aim: To examine the available evidence on the effects of care and support provided by volunteers on the health outcomes of older adults in acute care services.

Background: Acute hospital inpatient populations are becoming older, and this presents the potential for poorer health outcomes. Factors such as chronic health conditions, polypharmacy and cognitive and functional decline are associated with increased risk of health care‐related harm, such as falls, delirium and poor nutrition. To minimise the risk of health care‐related harm, volunteer programmes to support patient care have been established in many hospitals worldwide.

Design: A systematic scoping review.

Methods: The …

Is Cannabis Tourism Deviant? A Theoretical Perspective, Tianyu Ying, Jun Wen, Hairong Shan

Research outputs 2014 to 2021

With the growth of cannabis tourism, destinations such as the Netherlands have begun to offer cannabis- related products and services to visitors, including tourists from countries where all drugs are strictly prohibited. Yet limited research has sought to understand cannabis-oriented tourists' efforts to neutralize deviant connotations, namely by justifying or rationalizing misbehavior, when deciding to participate in cannabis tourism. This research note proposes a framework of deviant consumption behavior (DCB) constructed of geographic shifting, self-identity shifting, and moral identity shifting from the perspective of cannabis-oriented tourists to delineate tourists' decision-making process around engaging in deviant behaviors. The proposed framework suggests …

Characterization And Relative Quantitation Of Wheat, Rye, And Barley Gluten Protein Types By Liquid Chromatography–Tandem Mass Spectrometry, Barbara Lexhaller, Michelle L. Colgrave, Katharina A. Scherf

Research outputs 2014 to 2021

The consumption of wheat, rye, and barley may cause adverse reactions to wheat such as celiac disease, non-celiac gluten/wheat sensitivity, or wheat allergy. The storage proteins (gluten) are known as major triggers, but also other functional protein groups such as α-amylase/trypsin-inhibitors or enzymes are possibly harmful for people suffering of adverse reactions to wheat. Gluten is widely used as a collective term for the complex protein mixture of wheat, rye or barley and can be subdivided into the following gluten protein types (GPTs): α-gliadins, γ-gliadins, ω5-gliadins, ω1,2-gliadins, high- and low-molecular-weight glutenin subunits of wheat, ω-secalins, high-molecular-weight secalins, γ-75k-secalins and γ-40k-secalins …

Intergenerational Influences Of Hunger And Community Violence On The Aboriginal People Of Western Australia: A Review, Francesca Robertson, David Coall, Dan Mcaullay, Alison Nannup

Research outputs 2014 to 2021

There is a consensus in the literature that hunger and community violence inaugurates adverse health impacts for survivors and for their descendants. The studied cohorts do not include Western Australian Aboriginal people, although many experienced violence and famine conditions as late as the 1970s. This article describes the pathways and intergenerational impacts of studied cohorts and applies these to the contemporary Western Australian context. The authors found that the intergenerational impacts, compounded by linguistic trauma, may be a contributor to current health issues experienced by Aboriginal people, but these are also contributing to the resurgence in population numbers.

Security And Accuracy Of Fingerprint-Based Biometrics: A Review, Wencheng Yang, Song Wang, Jiankun Hu, Guanglou Zhang, Craig Valli

Research outputs 2014 to 2021

Biometric systems are increasingly replacing traditional password- and token-based authentication systems. Security and recognition accuracy are the two most important aspects to consider in designing a biometric system. In this paper, a comprehensive review is presented to shed light on the latest developments in the study of fingerprint-based biometrics covering these two aspects with a view to improving system security and recognition accuracy. Based on a thorough analysis and discussion, limitations of existing research work are outlined and suggestions for future work are provided. It is shown in the paper that researchers continue to face challenges in tackling the two …