215 research outputs found
Assessment of the resettlement compensation satisfaction of wood workers at Sokoban, Kumasi
Resettlement has been one of the strategies used to pave way for development and redevelopment of infrastructure in major cities of Ghana in the past few decades. Resettlement is usually characterized by displacement of people and their livelihoods. In Kumasi, resettlement has physicallydisplaced over 10,000 people mostly traders, in and around the Central Business District. Kumasi has undergone significant development in the past two decades in the areas of road and housing construction, resulting in the resettlement of some commercial neighborhoods including the wood merchants from Anloga to allow for the construction of the south-eastern section of the ring road from Oforikrom (Anloga) to Nhyiaeso. This study assessed the outcome of involuntary resettlement of wood merchants from Anloga to Sokoban Wood Village in terms of compensation, improvement in working space and the impact on the timber trade. The study used mixedmethods: it relied on the administration of questionnaires and interviews to gather data from respondents for analysis as well as the use of dependent sample T-test for hypothesis testing to evaluate the change in livelihood that resulted from the resettlement programme. The study revealeda significant improvement in the livelihood of the displaced workers after the resettlement.Keywords: Resettlement, Infrastructure, Compensation, Satisfaction, Livelihood
Secondary School Studentsâ Conceptual Understanding of Physical and Chemical Changes
In recent years, researchers have shown an interest in understanding studentsâ own ideas about basic chemical principles and guiding them through innovative ways to gain conceptual understanding where necessary. This research was a case study designed to assess 50 first year high school studentsâ conceptual understanding about changes in matter, with interpretive underpinnings. A diagnostic probe was administered to find out if discrete particles could be used to differentiate chemical changes from physical changes and to unravel the different conceptual interpretations that students had. Submissions obtained from the students were classified on levels of conceptions, and analysed using frequency counts and percentages, after which an interview was conducted to gain a deeper insight into their unscientific submissions. Findings from the study indicated that only a few students had difficulties in distinguishing between physical and chemical changes. These few did not associate the changes in states with associated physical and chemical properties, as was expected at their level. Neither did they base their explanation on the breaking nor formation of bonds, nor with changes in the constitutions of entities. They overwhelmingly intimated that physical changes were reversible whilst chemical changes were not. About 38% of participants who provided correct definitions for physical and chemical changes in two of the probes could not assign reasons for them. However, almost 79% of the participants showed an appreciable knowledge of types of changes that occur in chemistry. The adopted diagnostic probe and interview were useful in identifying studentsâ alternative conceptions about changes in chemistry. Diagnostic probes are recommended as a pre-requisite for conceptual change strategies
Walking works wonders: a tailored workplace intervention evaluated over 24 months
This article presents longitudinal data from 1120 participants across 10 worksites enrolled in Walking Works Wonders, a tailored intervention designed to increase physical activity and reduce sedentary behaviour. The intervention was evaluated over 2 years, using a quasi-experimental design comprising 3 conditions: tailored information; standard information and control. This study explored the impact of the intervention on objective measures (BMI, Ășt, waist circumference, blood pressure and heart rate) and self-reported measures of physical activity, sedentary behaviour, physical and psychological health. Interventions tailored to employees' stage of change significantly reduced BMI and waist circumference compared to standard and control conditions. Employees who received either a standard or tailored intervention demonstrated significantly higher work ability, organizational commitment, job motivation, job satisfaction, and a reduction in intention to quit the organization. The results suggest that adopting a tailored approach to interventions
Sedentary behaviour and health at work: an investigation of industrial sector, job role, gender and geographical differences
This article presents baseline data from 1120 employees across 10 worksites enrolled in a workplace physical activity intervention. The study provides new data on physical activity, sedentary behaviour and health and highlights gender, geographical, job type and industrial sector differences. Sitting at work accounted for more than 60% of participants' total daily sitting time on work days. Weekly and monthly hours worked, body mass index (BMI) and waist circumference were significantly higher for workers in the private sector compared to the public sector. Employees in sales and customer services had significantly higher BMI scores and significantly lower scores for workability index (WAI), job satisfaction, organisational commitment and job motivation, compared to other groups. This study provides further evidence that work is a major contributor to sedentary behaviour and supports the pressing need for interventions particularly targeting private sector industries and sales and customer service sectors
Proactive occupational safety and health management: promoting good health and good business
This research assessed the impact of organisational approaches to occupational safety and health (OSH) management on organisational performance, safety climate, employee attitudes, health and well-being.
Interviews with health and safety personnel, company directors and worker representatives were used to categorise the organisations according to their approaches to OSH management, using the Continuous Improvement Cycle model (Budworth and Khan, 2003). A cross-sectional survey of 2067 employees from these organisations examined the impact of company size, industrial sector and
approach to OSH management on indicators of organisational performance and employee outcomes. A structured questionnaire assessed demographic characteristics, organisation and job tenure, job satisfaction, organisational commitment, intention to quit and job motivation, safety climate, self-reported absence, performance and work-related ill-health. Organisations were also asked to provide data on profit, performance, accidents and absence indices. Organisations adopting a proactive approach to OSH management reported higher profit margins and lower accident rates, however these differences were not statistically significant. Organisations classified as âvery goodâ were found to show significantly
more positive safety climate perceptions across eight out of the nine safety climate dimensions. Employees in proactive organisations were significantly more committed to their organisations and
showed greater job satisfaction than employees in organisations categorised as âyet to be fully engaged/-complierâ. Positive safety climate perceptions and organisational attitudes were associated with better self-reported physical and mental health. The findings add to the validation of the CIC model as an assessment
and learning tool which may support the transition of organisations from reactive to proactive safety culture
Agronomic potential of âDodziâ, an extra early-maturing maize cultivar
Production of short-cycle crop varieties reduces the risk of crop loss due to terminal droughts and ensures early harvest to fill the hunger gap. Two experiments were used to determine the yield potentials of elite extra-early (75- 80 days) maturing maize (Zea mays L.) varieties to recommend the best extra-early variety for commercial productionand use in Ghana. In the first experiment, two extra-early and eight early (90-95 days) maize varieties were evaluated in replicated field trials at 10 research stations in 1995 and 1996. In the second experiment, thetwo extra-early varieties, one recommended early variety, and the farmersâ check variety were evaluated at 38 and 28 farm sites in 1995 and 1996, respectively. Mean grain yields across the 10 on-station sites in 2 years were 3.5, 4.1, 4.6, and 3.4 t ha-1 for NAES EE W-SR (extraearly), NAES Pool 16 DT (extra-early), Dorke SR (early), and the farmersâ check variety, respectively. Mean yields of the four varieties across 66 farm sites in both years were 3.2, 3.4, 3.4, and 3.6 t ha-1, respectively. NAES EE W-SR was the earliest of all the varieties tested and the farmersâ variety was latest. Food preference tests showed that NAES EE W-SR was comparable to the farmersâ check variety in suitability for local dish preparations. The National Variety Release Committee subsequently approved and released NAES EE W-SR under the local name âDodziâ. âDodziâ is recommended for early planting and harvesting throughout Ghana
Glioblastoma and Increased Survival with Longer Chemotherapy Duration
Introduction
The five-year survival rate for patients with glioblastoma (GBM) is low at approximately 4.7%. Radiotherapy plus concomitant and adjuvant temozolomide (TMZ) remains the standard of care. The optimal duration of therapy with TMZ is unknown. This study sought to evaluate the survival benefit of two years of treatment.
Methods
This was a retrospective chart review of all patients diagnosed with GBM and treated with TMZ for up to two years between January 1, 2002 and December 31, 2011. The Kaplan-Meier method with log-rank test was used to estimate the progression-free survival (PFS) and the overall survival (OS). The results were compared to historical controls and data from previous clinical trials of patients treated up to one year.
Results
Data from 56 patients with confirmed GBM were evaluated. The OS probability was 54% (SE = 0.068) at one year, 28.3% (SE = 0.064) at two years, 17.8% (SE = 0.059) at three years, and 4% (SE = 0.041) at five years. Seven patients (12.5%) were treated with TMZ for two years. Their median time-to-progression was 28 months (95% CI = 5.0 - 28.0), and they had an increased survival probability at three years compared to other patients (log-rank test Ï2 (1, N = 56) = 19.2, p < 0.0001).
Conclusions
There may be an advantage for a longer duration of TMZ therapy among patients with GBM, but the sample size was too small for generalization. A multicenter prospective study is needed to dentify optimal duration of TMZ therapy
A STUDY ON THE SHORELINE CHANGES AND LAND USE/LAND COVER ALONG THE KETA COASTAL ZONE
The Keta Municipality has undergone a rapid increase in population due to economic and commercial activities. This led to the municipalâs coastal and shoreline zone being faced with severe environmental challenges throughout the years. The goal of the study was to evaluate Ketaâs shoreline changes and the coastal Land Use Land Cover (LULC) using multi-temporal remote sensing datasets. These datasets were subjected to the following image processing techniques such as image enhancement, image classification and, shoreline extraction. The Digital Shoreline Analysis System (DSAS), a plugin tool in ArcGIS was utilized to assess the rate of shoreline changes (i.e., erosion or accretion) from 2000 to 2020. These were achieved based on the following statistical methods used; Linear Regression Rate (LRR), Net Shoreline Movement (NSM), and End Point Rate (EPR). The LULC analysis indicated that built-up areas and water bodies have increased rapidly from 14.71â18.43%, and 47.68â50.46% respectively from 2000 to 2021. In terms of the shoreline changes, LRR showed a mean of −0.95m/year with 68.22% faced with erosion and accretion of 31.78%. The EPR and NSM revealed a mean shoreline change of −1.19m/year and −26.3/period respectively from 2000 to 2021. The EPR and NSM results both revealed that 69.24% experienced erosion and 30.76% accretion, indicating the prevalence of erosion at the shoreline. This research is to contribute to both the development of Ketaâs shoreline protection and management measures as well as sustainable land use planning. Also, aids in achieving most of the Sustainable Development Goals in the municipal
Agronomic potentials of quality protein maize hybrids developed in Ghana
A quality protein maize (QPM) hybrid programme was started in 1991 to develop and promote high and stableyielding QPM hybrids to increase production of
nutritionally superior maize varieties in Ghana. Six 3- way QPM hybrids developed from inbred lines originating from germplasm of the International Centre for Maize
and Wheat Improvement (CIMMYT) were evaluated on research stations and in farmers\' fields in Ghana from 1995 to 1996. In the on-station evaluations, grain yields across 10 sites in both years averaged 6.0 ton ha-1 for the three hybrids (GH132-28, GH110-5 and
GH2328-88), 5.22 ton ha-1 for Obatanpa, and 3.60 ton ha-1 for the local maize variety. In farmers\' fields, data from over 50 farm sites in 1995 and 1996 showed mean yields of 4.95 ton ha-1 for the three hybrids, and 4.28 ton ha-1 for Obatanpa compared to 3.59 ton ha-1 for farmers\' varieties. On the average, the hybrids were similar to Obatanpa in days to 50 per cent silking, but were shorter in plant height and ear placement. Consumer
preference tests showed that the three hybrids were rated similar to the local variety in popular traditional food preparations such as âkenkey\' and âtuo zafi\'. In 1997,
the National Variety Release Committee approved the release of GH132-28, GH110-5, and GH2328-88 under the local names Dadaba, Mamaba, and CIDA-ba, respectively. These hybrids are recommended for planting in all the major agro-ecologies to boost maize production in Ghana.Les variétés de maïs hybride (Zea mays L.) dont
les plus sésirées que les variétés de pollinisation libre à cause de leur uniformté et leurs potentiels de rendement plus élevés. Pour augmenter la production de variétés de
maïs nutritionnellement supérieures au Ghana, I\'Institut de Recherche de Cultures a mis en place un programme hybrid de maïs protéique de qualité (MPQ) en 1991 pour
dĂ©velopper et promouvoir des hybrides de MPQ de rendement Ă©levĂ©s et stable. Six hybrids en trois de MPQ dĂ©veloppĂ©s d\'issu de la mĂȘme souch provenant de germeplasmes de CIMMYT (Centre International pour I\'amĂ©lioration de maĂŻs et de blĂ©) Ă©taient Ă©valuĂ©s aux
stations de recherches et aux champs d\'agriculteurs au Ghana de 1995 à 1996. Dans les évaluations sur place, les rendements de grain à travers 10 sites dans les deux années
ont atteint la moyenne de 6.0 ton ha-1 pour les trois hybrids (GH132-28, GH110-5 et GH2328-88), 5.22 ton ha-1 pour \'Obatanpa\' et 3.60 ton ha-1 pour la variétés de maïs local.
Sur les champs d\'agriculteurs des données de plus que 50 sites de champs en 1995 et 1996 montraient les rendements moyens de 4.95 ton ha-1 pour les trois hybrids
et 4.28 ton ha-1 pour les \'Obatanpa\' comparĂ©es Ă 3.59 ton ha-1 pour les variĂ©tĂ©s d\'agriculteurs. En moyenne, les hybrides Ă©taient semblables Ă \'Obatanpa\' en jours jusqu Ă
50% d\'apparition de soie maïs étaient plus courtes en taille de plante et en placement d\'épi. Les essais de préférence de consommateur montraient que les trios
hybrides étaient évalués semblables à la variété locale dans les préparations de nouriture traditionnelle populaire telle que \'kenkey\' et \'tuo zafi\'. En 1997, le comité pour la
mise en vente de Variété Nationale a approuvé la mise en vente de GH132-28, GH110-5 et GH2328-88 sous les noms locaux respectifs de Dadaba, Mamaba, et CIDA-ba.
Ce hybrides sont recommandés pour la popultion dans toutes les agroéclogies majeures pour stimuler la production de maïs au Ghana. Ghana Journal of Agricultural Science Vol. 40 (1) 2007: pp. 81-8
Morphological diversity and relationships among the IPGRI maize (Zea mays L) landraces held in IITA
Genetic variability estimates in maize (Zea mays L) landraces is an important information for trait improvement for food and nutrition security. Genetic diversity information in the Sub-Sahara African maize landraces is lack- ing. Agromorphological trait evaluation is a practical approach for genetic diversity estimation. Our objective was to assess genetic diversity among 60 IPGRI maize landraces held in IITA, Ibadan, against a check, «Obatanpa GH». Twenty-one quantitative traits and five qualitative traits were field-evaluated in Ghana in 2011 and 2012 wet seasons in a three-replicated randomized complete block design experiment. Large phenotypic variation was identified in all traits except cob colour, principal grain colour, and number of ears per plant. A moderate within population variation based on pooled Shannon Diversity Index was 0.68 ± 0.28. Between population variation was largest in earliness, anthesis-silking interval, and grain yield. Genetic similarity of 0.11 ± 0.00 based on squared correlation coefficient confirmed a large variability among accessions. Two major clusters, I and II, were separated on the basis of maturity characteristics, anthesis-silking interval, plant and ear heights, and grain yield. The first two principal components explained 67.89 % of the total variance. Four genotypes, TZm-1125 and TZm-1117 (5.0 Mg ha-1), TZm-1119 (5.4 Mg ha-1), and TZm-1139 (6.2 Mg ha-1) competed with the check (5.8 Mg ha-1) in grain yield. The IPGRI genotypes represent a large genetic reserve awaiting exploitation for trait improvement
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