90 research outputs found

    E-Language Pedagogy the Go-to? Attitude of the College language tutor towards Technology Integration

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    This paper investigates how Ghana, a developing country with her corresponding less technologically oriented education system, in the wake of the coronavirus disease, adapts, adopts and resorts to technology integration through online teaching and learning at the tertiary level, specifically, Colleges of Education. The study is a qualitative research work, which adopts the descriptive case study approach. The major data collection instruments were participant observation and semi-structured interviews. 29 language tutors spread across 4 language backgrounds- English, French, Fante and Twi, were interviewed. The data revealed that though technology is important and inevitable in the 21st century educational system, it cannot replace the traditional face-to-face classroom setting completely. It was clear also that the teacher’s attitude towards technology was very critical in the integration process. The study recommends that teachers be given technical support, training and adequate access to IT resources and infrastructure if integration can be done effectively to achieve the desired results. KEYWORDS: technology integration, education system, classroom, IT resources, infrastructure DOI: 10.7176/JEP/11-30-14 Publication date:October 31st 202

    The association between Institutional Absorptive Capacity, Electronic procurement Assimilation and Procurement Process in Public Sector Organizations

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    Public sector organizations face challenges with their procurement processes. Electronic mode of public procurement enables governments and organizations to achieve efficient and effective tendering information processing, leading to transparency and fairness in the bidding process. However, little is known on the drivers of electronic procurement assimilation in the public sector. The study examines the influence of absorptive capacity on the assimilation of electronic procurement and the subsequent effect on the procurement process in the public sector. In addition, the study explores the mediating role of electronic procurement assimilation on the relationship between institutional absorptive capacity and the procurement process. Structural equation modeling was used to analyze 306 useable data from public sector organizations in Ghana where public procurement laws demand efficient and effective procurement processes. We found support for all the four hypotheses. We offer theoretical and managerial implications

    Identity, creativity and performance spaces in Wales and Southwest England

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    Globally, performative spaces and venues of artistic creativity are governed by sets of conventions which impact the creative process. In this article, we discuss the experiences of four different creatives, operating in four different creative spaces. A poet and football player, a theatre producer and script writer, a gallery curator, and a ballet dancer have all shared their experiences of how traditionally white and heteronormative discourses regulate their respective creative spaces, the ways they conform to or transgress these norms, and the ways their interactions with their chosen creative spaces affect their creativity. These creatives have identities which are somehow β€˜marked’, somehow β€˜different’ from the β€˜norms’ Wales and South-West England. Whether members of the LGBTQ+ community, migrants to Wales from European and Caribbean countries, or being a different race to many around them, the creatives all have complicated interactions with the norms of their creative spaces within Wales and South-West England. These creative’s identities often clash with an entrenched lack of diversity and the broader expectations of British society. Despite, or perhaps, because of, these conflicts and tensions, each of the creatives discussed here found immense joy in the relationship between their identity/ies and their creative spaces and discovered how their own identity/ies are a central driving force for their creativity. Regardless of the differences of their mediums, each creative interviewed sought to centre their identity, to help them create art which can challenge dominant white and heteronormative discourses in wider British society

    Prevalence and characterization of Salmonella among humans in Ghana

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    BACKGROUND: Non-typhoidal Salmonella (NTS) is a public health problem worldwide and particularly in Africa with high disease burden. This study characterized Salmonella isolates from humans in Ghana to determine serovar distribution, phage types, and antimicrobial resistance. Further, the clonal relatedness among isolates was determined. METHODS: One hundred and thirty-seven Salmonella isolates (111 clinical and 26 public toilet) were characterized using standard serotyping, phage typing, and antimicrobial susceptibility testing methods. The molecular epidemiology of common serovars (Salmonella Typhimurium and Salmonella Enteritidis) was established by pulsed field gel electrophoresis (PFGE). RESULTS: Twenty-two serovars were identified with S. Enteritidis, S. Typhimurium, and Salmonella Derby as the most dominant. One hundred and twelve isolates showed resistance to more than one antimicrobial. Fifty-eight (n = 58/112; 54.5%) strains were multi-resistant with low resistance to cephalosporins ceftazidime (8.0%), cefotaxime (4.5%), and cefoxitin (2.7%) with synergy to clavulanic acid indicating possible ESBLs. Isolates showed high resistance to trimethoprim (66.1%), tetracycline (61.6%), ampicillin (57.1%), sulfamethoxazole (46.4%), chloramphenicol (33.9%), and ciprofloxacin (25.0%). The most common resistance pattern of multi-resistant serovars was to ampicillin, chloramphenicol, sulphonamide, and trimethoprim. S. Enteritidis (18/43) strains reacted with typing phages but did not conform to any phage type with PT14B and PT4 as predominant definitive phage types. Six S. Typhimurium strains reacted but did not conform to any recognized phage type while seven were non-typable. The predominant definitive phage types were DT1 and DT22. PFGE patterns of human S. Enteritidis were closely related to patterns of poultry isolates obtained in a previous study in Ghana. CONCLUSIONS: Cephalosporin resistance is uncommon among Salmonella from humans in Ghana. Poultry may be an important source of human salmonellosis. There is an urgent need for the implementation of routine surveillance of antimicrobial use and bacterial resistance among humans in Ghana

    Inhibition of Nitric Oxide (NO) Production in Lipopolysaccharide (LPS)-Activated Murine Macrophage RAW 264.7 Cells by the Norsesterterpene Peroxide, Epimuqubilin A

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    Seven norsesterterpene peroxides: epimuqubilin A (1), muqubilone B (2), unnamed cyclic peroxide ester (3), epimuqubilin B (4), sigmosceptrellin A methyl ester (5), sigmosceptrellin A (6), and sigmosceptrellin B methyl ester (7), isolated from the marine sponge Latrunculia sp., were examined with regard to their effects on nitric oxide (NO) production in lipopolysaccharide (LPS)-activated murine macrophage RAW 264.7 cells. The results indicated epimuqubilin A (1) possessed potent NO inhibitory activity against lipopolysaccharide (LPS)-induced nitric oxide release with an IC50 value of 7.4 ΞΌM, a level three times greater than the positive control, L-NG-monomethyl arginine citrate, followed by 6 (sigmosceptrellin A, IC50 = 9.9 ΞΌM), whereas other compounds exhibited only modest activity (Table 1). These compounds did not show appreciable cytotoxicity at their IC50 values for NO–inhibitory activity. The structure–activity upon NO inhibition could be summarized as follows: (1) a monocyclic carbon skeleton framework was essential for activity, (2) free acids gave higher activity, (3) the orientation of H3-22 with an equatorial position increased activity, and (4) a bicyclic structure reduced activity. This is the first report of a norsesterterpene peroxide with NO–inhibitory activity. In addition, compounds 1–7 were also evaluated for their inhibitory activities in the yeast glycogen synthase kinase-3Ξ² assay. In summary, several norsesterterpene peroxides showed novel biological activities of inhibition in NO production, suggesting that these might provide leads for anti-inflammatory or cancer chemopreventive agents

    A collaboratively derived international research agenda on legislative science advice

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    The quantity and complexity of scientific and technological information provided to policymakers have been on the rise for decades. Yet little is known about how to provide science advice to legislatures, even though scientific information is widely acknowledged as valuable for decision-making in many policy domains. We asked academics, science advisers, and policymakers from both developed and developing nations to identify, review and refine, and then rank the most pressing research questions on legislative science advice (LSA). Experts generally agree that the state of evidence is poor, especially regarding developing and lower-middle income countries. Many fundamental questions about science advice processes remain unanswered and are of great interest: whether legislative use of scientific evidence improves the implementation and outcome of social programs and policies; under what conditions legislators and staff seek out scientific information or use what is presented to them; and how different communication channels affect informational trust and use. Environment and health are the highest priority policy domains for the field. The context-specific nature of many of the submitted questionsβ€”whether to policy issues, institutions, or locationsβ€”suggests one of the significant challenges is aggregating generalizable evidence on LSA practices. Understanding these research needs represents a first step in advancing a global agenda for LSA research.Fil: Akerlof, Karen. George Mason University; Estados UnidosFil: Tyler, Chris. University College London;Fil: Foxen, Sarah Elizabeth. University College London;Fil: Heath, Erin. American Association for the Advancement of Science; Estados UnidosFil: Gual Soler, Marga. American Association for the Advancement of Science; Estados UnidosFil: Allegra, Alessandro. University College London;Fil: Cloyd, Emily T.. American Association for the Advancement of Science; Estados UnidosFil: Hird, John A.. University of Massachussets; Estados UnidosFil: Nelson, Selena M.. George Mason University; Estados UnidosFil: Nguyen, Christina T.. George Mason University; Estados UnidosFil: Gonnella, Cameryn J.. Herndon; Estados UnidosFil: Berigan, Liam A.. Kansas State University; Estados UnidosFil: Abeledo, Carlos R.. Universidad de Buenos Aires; ArgentinaFil: Al Yakoub, Tamara Adel. Yarmouk University; JordaniaFil: Andoh, Harris Francis. Tshwane University Of Technology; SudΓ‘frica. Tshwane University of Technology; GhanaFil: dos Santos Boeira, Laura. Veredas Institute; BrasilFil: van Boheemen, Pieter. Rathenau Instituut; PaΓ­ses BajosFil: Cairney, Paul. University of Stirling; Reino UnidoFil: Cook Deegan, Robert. Arizona State University; Estados UnidosFil: Costigan, Gavin. Foundation For Science And Technology; Reino UnidoFil: Dhimal, Meghnath. Nepal Health Research Council; NepalFil: Di Marco, MartΓ­n HernΓ‘n. Consejo Nacional de Investigaciones CientΓ­ficas y TΓ©cnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Instituto de Investigaciones "Gino Germani"; ArgentinaFil: Dube, Donatus. National University of Science and Technology; Zimbabu

    Establishing research priorities for investigating male suicide risk and recovery: A modified Delphi study with lived-experience experts.

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    This study uses the Delphi expert consensus method to work with lived-experience experts and establish research priorities to advance our understanding of male suicide risk and recovery. Items for the Delphi were generated via findings from two recent quantitative and qualitative systematic reviews on male suicide, a comprehensive gray literature search, responses to a global survey on male suicide, and feedback from a panel of 10 international academic/clinical male suicide experts. A two-round Delphi study was conducted to gain consensus among 242 lived-experience experts representing 34 countries on 135 potential male suicide research questions. Panelists were asked to rate each item on a 5-point Likert scale from should not be included to essential. Consensus was defined as 80% of respondents scoring an item as β€œessential” or β€œimportant.” After two Delphi rounds, consensus was reached on 87 items. The final questions were then grouped by the author team and expert academic/clinical panel into thematic clusters to create a 22-point agenda of research priorities. Like all methodologies, there are weaknesses to the Delphi method, not least that the experts employed in a Delphi study do not represent all experts on a topic. We note that many items that did not make it to the top of the research agenda related to minority experiences. All the questions prioritized in this agenda can be applied to different demographics. However, minority populations may require tailored Delphi’s using expert panels drawn specifically from those groups. A final agenda of 22 research priorities was developed. Questions related to 10 thematic domains: (a) relationships with others, (b) relationship with self, (c) relationship with emotions, (d) mental health, (e) suicidal behaviors, (f) early-life experiences, (g) structural challenges, (h) cultural challenges, (i) at-risk groups, and (j) support and recovery. The three highest endorsed items related to loneliness and isolation (98%), feelings of failure (97%), and sources of stress and emotional pain (96%) for men who are suicidal. (PsycInfo Database Record (c) 2023 APA, all rights reserved

    Identification of CD4+ T Cell Epitopes in C. burnetii Antigens Targeted by Antibody Responses

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    Coxiella burnetii is an obligate intracellular Gram-negative bacterium that causes acute Q fever and chronic infections in humans. A killed, whole cell vaccine is efficacious, but vaccination can result in severe local or systemic adverse reactions. Although T cell responses are considered pivotal for vaccine derived protective immunity, the epitope targets of CD4+ T cell responses in C. burnetii vaccination have not been elucidated. Since mapping CD4+ epitopes in a genome with over 2,000 ORFs is resource intensive, we focused on 7 antigens that were known to be targeted by antibody responses. 117 candidate peptides were selected from these antigens based on bioinformatics predictions of binding to the murine MHC class II molecule H-2 IAb. We screened these peptides for recognition by IFN-Ξ³ producing CD4+ T cell in phase I C. burnetii whole cell vaccine (PI-WCV) vaccinated C57BL/6 mice and identified 8 distinct epitopes from four different proteins. The identified epitope targets account for 8% of the total vaccination induced IFN-Ξ³ producing CD4+ T cells. Given that less than 0.4% of the antigens contained in C. burnetii were screened, this suggests that prioritizing antigens targeted by antibody responses is an efficient strategy to identify at least a subset of CD4+ targets in large pathogens. Finally, we examined the nature of linkage between CD4+ T cell and antibody responses in PI-WCV vaccinated mice. We found a surprisingly non-uniform pattern in the help provided by epitope specific CD4+ T cells for antibody production, which can be specific for the epitope source antigen as well as non-specific. This suggests that a complete map of CD4+ response targets in PI-WCV vaccinated mice will likely include antigens against which no antibody responses are made

    Towards a System Level Understanding of Non-Model Organisms Sampled from the Environment: A Network Biology Approach

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    The acquisition and analysis of datasets including multi-level omics and physiology from non-model species, sampled from field populations, is a formidable challenge, which so far has prevented the application of systems biology approaches. If successful, these could contribute enormously to improving our understanding of how populations of living organisms adapt to environmental stressors relating to, for example, pollution and climate. Here we describe the first application of a network inference approach integrating transcriptional, metabolic and phenotypic information representative of wild populations of the European flounder fish, sampled at seven estuarine locations in northern Europe with different degrees and profiles of chemical contaminants. We identified network modules, whose activity was predictive of environmental exposure and represented a link between molecular and morphometric indices. These sub-networks represented both known and candidate novel adverse outcome pathways representative of several aspects of human liver pathophysiology such as liver hyperplasia, fibrosis, and hepatocellular carcinoma. At the molecular level these pathways were linked to TNF alpha, TGF beta, PDGF, AGT and VEGF signalling. More generally, this pioneering study has important implications as it can be applied to model molecular mechanisms of compensatory adaptation to a wide range of scenarios in wild populations
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