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Search Results: 1 - 10 of 5071 matches for " Susan Nchimbi "
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Genotypic Variation for Tolerance to Low Soil Phosphorous in Common Bean under Controlled Screen House Conditions  [PDF]
Annet Namayanja, Johnson Semoka, Robin Buruchara, Susan Nchimbi, Moses Waswa
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.54030
Abstract:

Production of common bean (Phaseolus vulgaris) is often limited by the low availability of soil phosphorus (P). Identification of common bean genotypes adapted to low phosphorus (P) availability may be a feasible strategy to overcome the poor plant growth and production in P-deficient soils. Genetic variation for P response of thirteen common bean genotypes was studied under screen house controlled conditions using triple super phosphate as P source. The common bean genotypes varied in leaf area, shoot mass, root mass, total root length, basal and lateral roots production, shoot P concentration and P uptake under phosphorous deficiency and high phosphorous. All the measured variables were significantly correlated with each other, which in turn were correlated to P uptake. Generally the large-seeded genotypes RWR 1946 and RWR 2075 appeared to have the best growth, hence superior P efficiency under low P availability, while at the same time they were more responsive to added P. These results complement the earlier field based observed tolerance to low soil phosphorous of the selected genotypes under the BILFA strategy.

The Effects of the Environment on Iron and Zinc Concentrations and Performance of Common Bean (Phaseolus vulgaris L.) Genotypes
Susan Nchimbi-Msolla,George Muhamba Tryphone
Asian Journal of Plant Sciences , 2010,
Abstract: The common bean (Phaseolus vulgaris L.) is an important source of protein and minerals. It supplies all of the iron that humans require for metabolism and provides 25% of the daily requirements of magnesium and copper as well as 15% of potassium and zinc. The objective of this study was to determine the influence of the environment on iron and zinc concentrations and the performance of common bean genotypes. The experiments were conducted in the horticulture units at the Sokoine University of Agriculture (Morogoro) and Madiira-Arusha. A randomized, complete block design with three replications was used for 20 common bean genotypes. The leaves and seeds were collected at early flowering and at maturity and analyzed for iron and zinc concentrations, respectively. Several yield characteristics were measured, including the time required to reach 50% flowering and 85% maturity, the number of seeds to pod ratio, the number of pods to plant ratio, the 100 seed weight and the seed yield. Data analysis was performed using ANOVA and the mean was separated by Duncan’s multiple range test and correlation techniques. The tested genotypes exhibited significant (p<0.05) differences in iron and zinc concentrations in the leaves and seeds of plants from both locations, with plants from Madiira-Arusha having the largest differences. The leaves showed higher levels of iron and zinc than the seeds. We observed a correlation between the concentration of Fe and Zn in both leaves and seeds (r = 0.507*** and r = 0.495*, respectively). In addition, there were significant differences (p<0.05) in the yield characteristics between genotypes of plants from both locations. These results suggest that environmental effects play a role in genotype levels of Fe and Zn in both leaves and seeds.
The Trade Unions Performance in Tanzania: The Perceptions of School Teachers Union in Singida Municipality  [PDF]
Ausi Nchimbi
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.64021
Abstract:
This study explored the perception of teachers as members of trade unions on the effectiveness of their trade union; using Tanzania Teacher’s Union, as a case study. The study adopted a case study strategy where ten schools were involved in the study. Both qualitative and quantitative methods and approaches were used in data collection and analysis. A total sample of 209 respondents was involved in the study. Documentary review was also adopted, where various documents related to the study were critically reviewed. The results demonstrated that members of TTU have positive perception on the effectiveness of TTU as a workers’ representation and do represents its members. However respondents were skeptical on the issue of communication and keeping the members up to date on what is real going on within the union.
Is Distance Education the Answer to the Nursing Shortage?  [PDF]
Susan Mee
Open Journal of Nursing (OJN) , 2014, DOI: 10.4236/ojn.2014.43020
Abstract:

This study examined the effectiveness of distance education compared with campus based learning among nursing students. Distance education in nursing curricula is increasing. Academic nurse leaders must demonstrate the effectiveness of distance learning. This study is unique in that two cohorts, distance learners and campus learners, were taught synchronously by the same faculty member. Quantitative measures of student learning outcomes were compared using SPSS. There were no significant differences in learning outcomes between distance learners and campus learners. This study provides empiric support for distance education as a means to address the nursing shortage.

Fostering Competencies in Future Teachers: A Competency-Based Approach to Teacher Education  [PDF]
Susan Cydis
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.513130
Abstract:

The study investigated the characteristics of instruction and assessment used by instructors in teacher education courses that foster student competencies as perceived by students. The sampling method used to collect the sample of instructors and their courses was purposive, non-probability sampling. Student participants included those that were currently registered in classes of the respective instructors. A qualitative analysis of the data collected revealed that instructors used a variety of competency-based educational practices in their instructional and assessment tasks and that students perceived themselves as competent in the areas identified by the Teacher Education Accreditation Council (2009) as standards for student competencies in teacher education courses.

Plagiarism: Whose Responsibility Is It Anyway? An Administrator’s Choice to Teach Not Punish  [PDF]
Susan Polirstok
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.58066
Abstract:


This paper examines how plagiarism is viewed on college campuses and the resultant punitive consequences that follow. In this case, a college administrator must determine whether two graduate education students should be expelled as a consequence of having certain passages appearing from websites and journal articles without attribution in first two theses drafts. In assessing what contributed to this infraction, the college administrator determined that the students had never received direct instruction in plagiarism and how to avoid it. Working collaboratively with the referring faculty member, a 3-session instructional program was designed to teach how to paraphrase and use citations in tandem with an overcorrection procedure of positive practice coupled with restitution. The culminating session required each student to design a 5-lesson module on plagiarism and how to avoid it for their program peers. They also met with their faculty instructor to review the changes they had made in their drafts resulting in reinstatement in their research course. The entire process helped the academic program faculty recognize that the topic of plagiarism and skills necessary to avoid plagiarism required direct instruction at various points throughout the overall program to prevent students from encountering severe penalties.


Suggested Strategies in Water Treatment by Using Situ Pressure in Reverse Osmosis  [PDF]
Susan Norouzi
Open Journal of Geology (OJG) , 2015, DOI: 10.4236/ojg.2015.55033
Abstract: Nowadays desalination is one of the main resources to obtain water in many areas. The most advanced method for water filtration is reverse osmosis. In this system, water is injected into semi-membranes by using power pumping, and its salt water is taken away from the solution. This paper has tried to offer guidelines to use the pressure createdin situof harvesting water, instead of utilizing power pump, which produces the necessary pressure for the reverse osmosis. These guidelines have been divided into 2 main groups: Using the created natural pressure, and the other way is using the pressures that are caused by the constructions built for harvesting water.
Classroom Management Strategies for Inclusive Classrooms  [PDF]
Susan Polirstok
Creative Education (CE) , 2015, DOI: 10.4236/ce.2015.610094
Abstract: Classrooms in the 21st century have by law become inclusive, typically comprised of general education and special needs students. Included students are those who present with mild to moderate learning and behavioral challenges. They add another layer of complexity to classroom management, requiring teachers to be highly structured, consistent and reinforcing. Teacher fidelity to behavioral expectations that have been established for the classroom is essential. Classroom management strategies discussed include changing the teacher approval to disapproval ratio, using selective ignoring, focusing on structure and routine, increasing student locus of control, de-escalating student aggression and hostility, and limiting the use of punishment. Hands-on strategies are highlighted.
Aircraft Clean Air Requirements Using Bleed Air Systems  [PDF]
Susan Michaelis
Engineering (ENG) , 2018, DOI: 10.4236/eng.2018.104011
Abstract: There are certification and airworthiness requirements relevant to the provision of clean breathing air in the crew and passenger compartments. There have been continuing reports and studies over the years regarding oil fumes in aircraft, including impaired crew performance. Oil fumes are viewed in varying ways ranging from rare seal bearing failures, to low level leakage in normal flight. A Masters of Science (MSc) research degree was undertaken to assess whether there is any gap between the certification requirements for the provision of clean air in crew and passenger compartments, and the theoretical and practical implementation of the requirements using the bleed air system. A comprehensive literature search reviewed applicable certification standards, documented and theoretical understanding of oil leakage. Two types of interviews were conducted to address the research questions. Key aviation regulators were questioned about the process by which they certify and ensure compliance with the clean air requirements. Aerospace engineers and sealing professionals were interviewed about their understanding of how oil may leak past compressor oil bearing seals, and into the air supply under various flight conditions. The outcome of the research showed that there is a gap between the clean air certification requirements, and the theoretical and practical implementation of the requirements using the bleed air system. Low level oil leakage into the aircraft cabin in normal flight operations is a function of the design of the engine lubricating system and bleed air systems, both utilising pressurised air. The use of the bleed air system to supply the regulatory required air quality standards is not being met or being enforced as required.
Socio-Cultural Identities, Perceptions of Sexuality/Sexual Behavior and Cultural Contexts as Determinants of HIV and AIDS Prevalence in Southern Africa  [PDF]
Chijioke Uwah, Susan Wright
World Journal of AIDS (WJA) , 2012, DOI: 10.4236/wja.2012.21003
Abstract: This paper attempts to examine the connection between one’s socio cultural setting and the prevalence of HIV/AIDS. Often, local communities form the contexts within which people negotiate their social and sexual lives and identities. These communities also play a key role in enabling or restraining people from taking control over their health. The paper will try to demonstrate through specific examples that in African societies, sexual behavior is a product of one’s socio-cultural environment and structural contexts and not the cognitive properties of the individual. The article draws from the qualitative study (Focus group sessions, individual interviews) conducted in three high schools in the Boland area of the Western Cape with about 18 learners, 3 Life skills teachers, 3 Performer-Educators on the efficacy of the HIV/AIDS intervention by The Centre for HIV/AIDS Management theatre group based at the University of Stellenbosch. The aim of the study was to ascertain the cultural content of their campaign model as well as their knowledge of the determinants of sex and sexuality of their target areas. Based on the findings of this study, I argue that theatre will achieve greater success in its campaign against HIV/AIDS in South Africa if the designers of the campaign models adopt a more participatory approach, make indigenous culture central to the design of their intervention model and pay closer attention to what Campbell refers to as “community level of analysis” which simply put implies a greater understanding of the target audiences local communities and its determinants of sex and sexuality.
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