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Search Results: 1 - 10 of 393 matches for " Marieme Josephine Lette "
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Evaluation of Sawdust and Rice Husks as Fillers for Phenolic Resin Based Wood-Polymer Composites  [PDF]
Marieme Josephine Lette, Elhadji Babacar Ly, Diene Ndiaye, Akito Takasaki, Toshihiro Okabe
Open Journal of Composite Materials (OJCM) , 2018, DOI: 10.4236/ojcm.2018.83010
Abstract: We produced Wood-Polymer Composites (WPCs) with phenolic resin (PR) filled with saw dust (SD) and rice husks (RH) in a PR:fillerratio of 60:40 wt.%. RH and SD were grinded and sieved into particles <160 μm. The aim of this research work was to evaluate sawdust and rice husks as fillers for sustainable phenolic resin based WPCs. Therefore, we investigated the thermal stability of PR/RH and PR/SD WPCs then we studied and compared the tensile, flexural properties of PR/SD and PR/RH WPCs samples, as well as their dimensional stability after water absorption test. Furthermore, through ultraviolet light exposure, we evaluated the effects of photo-oxidation on the water stability and mechanical properties of PR/RH and PR/SD WPCs samples compared to unexposed ones. PR filled with SD presented better mechanical properties compared to PR/RH WPCs samples. However, PR/RH WPCs showed good mechanical properties, and better thermal resistance and better water repulsion capabilities compared to PR/SD WPCs samples. Although, long time UV exposure ended up lowering considerably the mechanical properties and water resistance of PR/SD and PR/RH WPCs, both RH and SD offer great added value as fillers for PR based WPCs; SD having better interactions with PR matrix compared to RH.
The Dynamics of Vector-Host Feeding Contact Rate with Saturation: A Case of Malaria in Western Kenya  [PDF]
Josephine Wairimu, Ogana Wandera
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.410187
Abstract:

In this study, we develop an expression for a saturated mosquito feeding rate in an SIS malaria model to determine its effect on infection and transmission dynamics of malaria in the highlands of Western Kenya. The basic reproduction number \"\" is established as a sharp threshold that determines whether the disease dies out or persists in the population. Precisely, if \"\" , the disease-free equilibrium is globally asymptotically stable and the disease always dies out and if \"\" , there exists a unique endemic equilibrium which is globally stable and the disease persists. The contribution of the saturated contact rate to the basic reproduction number and the level of the endemic equilibrium are also analyzed.


Modeling Insecticide Resistance in Endemic Regions of Kenya  [PDF]
Josephine Wairimu, Marilyn Ronoh
Applied Mathematics (AM) , 2016, DOI: 10.4236/am.2016.76050
Abstract: In this study, we develop an SIS model for two types of mosquitoes, a traditional one and one that is resistant to IRS and ITNs. The resistant mosquito develops behavioral adaptation to control measures put in place to reduce their biting rate. They also bite early before dusk and later after dark when people are outside the houses and nets. We determine the effect of the two types of mosquitoes on malaria transmission in Kenya. The basic reproduction number R 0 is established as a sharp threshold that determines whether the disease dies out or persists in the population. Precisely, if R 0 ≤ 1, the disease-free equilibrium is globally asymptotically stable and the disease always dies out and if R 0 > 1, there exists a unique endemic equilibrium which is globally stable and the disease persists. The contribution of the two types of mosquitoes to the basic reproduction number and to the level of the endemic equilibrium is analyzed.
The Flipped Classroom for Teaching Millennials: A Competency-Based Pedagogical Approach  [PDF]
Josephine Chinying Lang
Creative Education (CE) , 2017, DOI: 10.4236/ce.2017.810108
Abstract:
This paper describes a competency-based pedagogical framework as the basis for designing a flipped classroom for millennials taking an undergraduate course on sustainable business. Its theoretical underpinnings are culled from the literatures on learner empowerment, epistemological belief systems, and the social construction of knowledge. The desired learning outcomes of this pedagogical framework include the development of cognitive competencies, collaborative knowledge acquisition skills, and motivational skills. In a flipped classroom of an undergraduate sustainability course, students acquired these competencies and skills to use intelligently information about sustainability which they found on the Internet. The paper describes in some detail how the course was taught in an actual class to impart such competencies and skills. The flipped-classroom pedagogy allows for better student learning outcomes by incorporating student collaboration, and by fostering critical thinking and ethical reasoning. The paper demonstrates how teacher and student benefit from the competency-based pedagogical approach within a flipped-classroom format. This approach moves beyond the traditional giver and receiver format to a more fellow-explorer format.
Teaching Leadership Better: A Framework or Developing Contextually-Intelligent Leadership  [PDF]
Josephine Chinying Lang
Creative Education (CE) , 2019, DOI: 10.4236/ce.2019.102032
Abstract: This paper discusses the importance of context, which is that which makes content relevant and meaningful. It highlights what context ought to mean for organizational leaders, given today’s business environment of crunching change. Based on published research about context, this paper develops a model of contextual intelligence, upon which better ways of teaching leadership may be cultivated. This model encompasses four concerns, namely: contextual sense-making; situation awareness and situation judgment; contextual adaptation; and, response judgment. Next, the paper focuses on the requisite complexity that leaders should acquire if they are to operationalize such a model. That requisite complexity comprises four components, namely: general cognitive complexity; social complexity; affective complexity; and, self-complexity. The paper finally delineates a pedagogical framework to develop leadership training programs that can better foster the requisite complexity in individuals to become contextually-intelligent leaders.
Optimizing healthy ageing in disadvantaged communities: insights into older people’s use of health and social care services
Josephine Tetley
Nursing Reports , 2012, DOI: 10.4081/nursrep.2012.e11
Abstract: The European Year of Healthy Ageing recognizes that health care systems need to be improved and reorganized if services are to optimize the opportunities for people to stay healthy and well in their own homes for as long as possible. However, current services tend to be fragmented and insensitive to the needs of older people and their carers resulting in services being underused or refused leading to increased admissions into acute hospital care that could have been prevented. The main aim of the study reported in this paper was to identify the factors that affected older peoples’ decision and choice-making processes, when using or contemplating the use of care services. Using a constructivist methodology, this study used participant observation and 23 interviews in three study settings: an African Caribbean support service, day centers for people with memory and cognition problems and luncheon clubs for older people. An inductive analysis of the data revealed that when older community dwelling people found themselves struggling with certain aspects of their daily care needs; they used adapting, coping and seeking as strategies to manage. Additional issues of how well services were able to meet individual’s aspirations for care and support were identified through themes of match-mismatch, fair-unfair, independence-dependence. The findings reported in this study provide important insights as to how people’s needs are complex yet are negatively affected by rigid state controlled services that ultimately affect individual decisions to use or refuse services.
Robert Burns and the Re-making of National Memory in Contemporary Scotland
Josephine Dougal
Authorship , 2012,
Abstract: Robert Burns, the eighteenth-century Scottish poet and song writer, continues to maintain a substantial cultural ‘afterlife’ in the twenty first century, both within Scotland and beyond. Achieving cult status in the nineteenth century, the power of Burns as a popular cultural icon remains undiminished. Where the appropriation of Burns as national icon in the nineteenth century was made manifest in statuary, commemorative objects, and painted portraits, the twenty-first century has been marked by the proliferation of the image of Burns in new forms and technologies, with Burns as product and brand logo, museum and heritage attraction, and tourism industry selling point. This recent flourishing of interest and engagement raises questions about why and how an eighteenth-century poet continues to be the object of such extensive cultural elaboration at this time. In approaching this question, some fruitful lines of enquiry are being suggested in recent discussions that have looked at the nineteenth-century Burns as a ‘mobilizing agent in collective memory production’ (Rigney 2011, 81). One such appraisal points to how the construction of Burns in the nineteenth century as an iconic figure of Scottish cultural memory has the potential to ‘be resignified as necessary in subsequent chronological and geographical sites’ (Davis 2010, 14). It is this potential for the resignification of Burns as a symbolic site for the nation’s memory that this paper explores. In pointing to Burns’ representation in a variety of popular forms and in public discourse, the paper examines how a writer comes to be invested and reinvested as the voice and persona of the nation.
Domestic Heroes: Saint Nicholas and the Catholic Family Father in the Nineteenth Century
Josephine Hoegaerts
Journal of Men, Masculinities and Spirituality , 2009,
Abstract: This article focuses on Saint Nicholas, a “hero of the hearth”. Retracing the narratives and imagery on Nicholas in the Catholic region of Flanders from the end of the eighteenth until the beginning of the twentieth century, the Saint is brought forward as a romance-related patron, a stern authoritarian figure and a sentimental grandfather. Rather than simply restating researchers’ observations on the “sentimentalization” of Saint Nicholas throughout the last two centuries, the article argues that Nicholas can be seen as an icon of Catholic domestic masculinity and as an ongoing support to paternal authority. The construction of Saint Nicholas by folkorists and artists as well as teachers, priests and parents is analyzed with particular attention to the interaction between the Saint and the nineteenth century pater familias. Saint Nick, it turns out, faithfully followed the path Catholic grandfathers had laid out towards a construction of old age and masculinity that legitimated and supported paternal authority, all while weaving emotion and sentimentality into a “manly” identity.
Benevolent Fathers and Virile Brothers: Metaphors of Kinship and the Construction of Masculinity and Age in the Nineteenth-Century Belgian Army
Josephine Hoegaerts
BMGN : Low Countries Historical Review , 2012,
Abstract: This article traces the evolution of different discourses of masculinity in the nineteenth century Belgian army. It highlights specifically the way in which officers and men used concepts such as fatherliness, brotherhood, youthfulness, filial duty and other kinship metaphors to express their gendered identities and their mutual relationships within an all-male community. Despite their continued reliance on these metaphors, the ways in which the language of age and kinship was deployed in the army changed throughout the century, and most notably around 1880. As the army became 'modern', its soldiers became brothers-in-arms rather than obedient sons and its officers became virile family men rather than wise paternal greybeards. Approaching the twentieth century, when comradeship between young men would play a key-role in the self-representation of the army, youth gained importance in military structures and the muscular and sexual vigour of the young male body became central to definitions of masculinity.
From Rage to Rap and Prison to Print:
Josephine Metcalf
European Journal of American Studies , 2009, DOI: 10.4000/ejas.7651
Abstract: 1. IntroductionBy the late 1980s, while thousands of former gang members were either dead or incarcerated, their legacy and the gang subculture was being celebrated and commodified through gangsta rap music and videos, film and fashion. In the early 1990s this lucrative cultural trend sparked interest from potential authors and publishers. Such literary attention was partially fuelled by a public fascination with life in the ghettos following the 1992 Los Angeles (LA) riots, resulting in a ne...
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