oalib

OALib Journal期刊

ISSN: 2333-9721

费用：99美元

投稿

时间不限

( 2024 )

( 2023 )

( 2022 )

( 2021 )

自定义范围…

匹配条件： “ Theophilus Adjei-Kumi” ，找到相关结果约471条。
列表显示的所有文章，均可免费获取
第1页/共471条
每页显示 条
Development of Tender Price Indices for the Ghanaian Building Industry  [PDF]
Ernest Kissi, Theophilus Adjei-Kumi, Jerry Gyimah Jnr
Journal of Building Construction and Planning Research (JBCPR) , 2021, DOI: 10.4236/jbcpr.2021.93013
Abstract: Tender price indices (TPI) remain an optimum process for predicting tender prices. There have been several indices’ developments in the Ghanaian Building Industry (GBI) to help in cost management practices, for instance, building cost indices, and material indices among others. Notwithstanding, there are no indices for forecasting tender price at the design stage of building projects in the Ghanaian Building Industry. The motivation of this study is to develop tender price indices that would facilitate easy prediction of the initial cost of building projects. Through a thorough literature review and secondary data collection, the index was formulated using Laspeyres with Excel spreadsheet for the actual index. The variables considered include preliminaries and measured work sections which include the substructure, concrete work, reinforcement, masonry, lining/sheathing, window/door/stairs, metalwork, surface finishes, sanitary appliances/fitting and electrical supply/power light system of the Bills of Quantities. The finding of the study shows that on average there is a change in price of about 4.42 per cent within the eight-year period from 2008 to 2016. The study has developed tender price indices for the Ghanaian Building industry for the facilitation of the easy prediction of the tender prices at the initial design stage, however, the indices have an error margin of ±3. The development of these indices will serve as the basis for further development of other indices in GBI such as locational indices and value-based indices for effective cost management practices.
An Exploratory Study into Social Cost Considerations in Ghanaian Construction Industry  [PDF]
James Cofie Danku, Theophilus Adjei-Kumi, Bernard Kofi Baiden, Kofi Agyekum
Journal of Building Construction and Planning Research (JBCPR) , 2020, DOI: 10.4236/jbcpr.2020.81002
Abstract: Construction causative nuisances, inconveniences, interferences and disruptions to the routine economic and social life patterns of adjacent or neighboring communities are referred to as social cost. This study explores the understanding and level of consideration of social cost by construction professionals in Ghana. Relevant literature sources are reviewed to define, rationalize and classify social cost. The study used the survey approach with a set of questionnaires addressed to construction contractors and professionals to gather the data. It was realized that not much consideration is given to social cost at the tender stage of the construction process. The five factors hindering social cost inclusion in tendering are “difficulty in allocating social costs”, “governmental interferences”, “lack of historical data”, “lack of appreciation of social costs” and “low stakeholder agitation”. The paper advocated for integration of social cost into the tendering process. The study will serve as a foundation to design a social cost assessment system at the pre-contract stage.
Assessing Drivers of Infrastructure Delivery at the Metropolitan, Municipal and District Assemblies (MMDAs) in Ghana  [PDF]
Joe Kingsley Hackman, Joshua Ayarkwa, Dickson Osei-Asibey, Theophilus Adjei-Kumi, Alex Acheampong, Godslove Ampratwum
Open Journal of Social Sciences (JSS) , 2021, DOI: 10.4236/jss.2021.96008
Abstract: This paper aimed at assessing drivers of infrastructure delivery at the Metropolitan, Municipal and District Assemblies (MMDAs) in Ghana. The study followed the quantitative research approach. One hundred and twenty-one professionals (121) from thirty-six (36) MMDAs in the Greater Accra and Ashanti Regions of Ghana participated in a questionnaire survey. Mean Scores and One Sample t-test were used for the analysis of the data. The findings suggest that 10 factors listed as “effective managerial skills and proper supervision”, “political commitment of central government”, “effective communication”, “attention to developing appropriate local authority procurement system”, “proper cost budgeting”, “checking corruption”, “adequate resources for development”, “adequate technical capacity”, “elimination of political control in staff recruitment”, and “adequate funding for infrastructure delivery” are the significant drivers of infrastructure delivery at the MMDAs. This study therefore recommends the establishment of efficient legal and institutional frameworks by the government to support and enhance the required capacities of the MMDAs for effective infrastructure delivery. The findings would help to address the infrastructural needs of local communities by presenting solutions to the challenges associated with infrastructure delivery which plague the MMDAs. Knowledge gained from this study could be applied to other similar developing countries pursuing decentralization as means to ensuring infrastructure delivery at the local government level.
Customisation and Desirable Characteristics of a Standard Method of Measurement for Building Works in Ghana
Gabriel Nani,Peter Edwards,Theophilus Adjei-Kumi,Edward Badu
Australasian Journal of Construction Economics and Building , 2012,
Abstract: This paper reports a study that identified andcategorised the modifications to the 5thEdition of the British Standard Method ofMeasurement (SMM5) of building works inGhana. Typical modifications involved ‘costinsignificant items’, ‘minor labour items’,‘custom units of measurement’, ‘methodrelated items’, ‘combinable items’,‘subordinate items’, and ‘items of minorinformative impact’. It was also observed thatthe desirable characteristics/ qualities ofstandard methods of measurement (SMM) ofbuilding work were noteworthy, since theyprovide insight into the nature of a SMMrequired for the construction industry inGhana.The research reviewed available literature,various SMMs and bills of quantities (BQs).The relevance of the modifications andSMM characteristics identified wasconfirmed by a survey of the opinions ofprofessional quantity surveyors conductedthrough a carefully designed questionnaire.Inferences from the opinion survey formedthe basis for grouping both SMMmodifications found and the desired qualitiesof a SMM for Ghana.Survey respondents confirmed all theidentified modifications to the British SMM,except for the elimination of items of minorinformative impact. It was held that allinformation was relevant in measurement.Desirable characteristics of a SMM were ratedin decreasing order of relevance as: easylocation of items; cost significance; simplicity;thoroughness; ease of cost analysis; goodpractice; conciseness; adoptability; precision;industry practice; stakeholders’ opinion;custom classification; regional relevance; andinclusion of jargon. It was noted that therelevance of these characteristics may varyform one region to the other as a result oftechnological, cultural and legal differences.However, the desired SMM characteristicswere recommended as fundamental indeveloping an appropriate SMM for Ghana.
Hepatitis E virus infection is highly prevalent among pregnant women in Accra, Ghana
Andrew A Adjei, Yao Tettey, John T Aviyase, Clement Adu-Gyamfi, Samuel Obed, Julius AA Mingle, Patrick F Ayeh-Kumi, Theophilus K Adiku
Virology Journal , 2009, DOI: 10.1186/1743-422x-6-108
Abstract: One hundred and fifty-seven women provided blood samples for unlinked anonymous testing for the presence of antibodies to HEV. The median age of participants was 28.89 ± 5.76 years (range 13–42 years). Of the 157 women tested, HEV seroprevelance was 28.66% (45/157). Among the seropositive women, 64.40% (29/45) tested positive for anti-HEV IgM while 35.60% (16/45) tested positive to HEV IgG antibodies. HEV seroprevalence was highest (46.15%) among women 21–25 years of age, followed by 42.82% in = 20 year group, then 36.84% in = 36 year group. Of the 157 women, 75.79% and 22.92% were in their third and second trimesters of pregnancy, respectively. Anti-HEV antibodies detected in women in their third trimester of pregnancy (30.25%) was significantly higher, P < 0.05, than in women in their second trimester of pregnancy (25.0%).Consistent with similar studies worldwide, the results of our studies revealed a high prevalence of HEV infection in pregnant women.Hepatitis E virus (HEV) infection is a major cause of human viral disease with clinical and pathological features of acute hepatitis. The infection represents an important public health concern in many developing countries, where it is primarily transmitted through the faecal oral route due to contaminated water and food [1] and is often responsible for epidemic outbreaks [2]. The infection affects primarily young adults and is generally mild [3]; however, the mortality rate is higher among women, especially during the second or third trimesters of pregnancy [4-6]. In Sudan, a case:fatality ratio of 17.8% was found in an outbreak in Darfur, with a ratio of 31.1% among pregnant women [7]. In related studies, Stoszek et al. and Patra et al. reported prevalence rates of 84.3% and 60%, among pregnant women in Egypt and India, respectively [8,9].In Ghana, studies of HEV seroprevalence in pregnant women have not been done previously. However, recently we observed HEV seroprevalence rate of 38.1% among persons who work with
Prevalence of human immunodefiency virus infection among tuberculosis suspect patients in Accra, Ghana
AA Adjei, TK Adiku, PF Ayeh-Kumi, IFA Hesse
West African Journal of Medicine , 2006,
Abstract:
Human Immunodeficiency Virus, Syphilis Prevalence and Risk Factors among Migrant Workers in Konongo, Ghana  [PDF]
Andrew A. Adjei, James Brandful, Mark Lurie, Margaret Lartey, Francis Krampa, Awewura Kwara, Theophilus K. Adiku, Yao Tettey, Richard K. Gyasi, Aaron L. Lawson, Timothy Flanigan
Advances in Infectious Diseases (AID) , 2014, DOI: 10.4236/aid.2014.43020
Abstract: Migrant workers, particularly gold mining workers, have been identified as a group at risk for HIV and sexually transmitted infections (STI). A cross-sectional study was undertaken on the correlates of human immunodeficiency virus (HIV) and syphilis infections in a sample of migrants (Ghanaian citizens [156] and non-Ghanaian citizens [8]) working in a gold mining centres in Konongo, Ghana. The study was conducted between the months of January 2013 to December 2013. Of a total of 600 eligible migrant workers, only 164 (27.33%; males 114, females 50) of the eligible migrants took part in the study. Subjects voluntarily completed a risk-factor questionnaire and provided blood specimen for testing for the presence of antibodies to HIV and Treponema pallidum, the causative agent of syphilis. These data were analyzed using both univariate and multivariate techniques. The median age of the participants was 29.0 years (range 18 - 62 years). Of the 164 migrant workers tested, HIV and syphilis seroprevalence were 6.7% and 3.7% respectively. On multivariate analysis, the independent determinants for HIV infection were being female [odds ratio (OR) 2.94; 95% confidence interval (95% CI 0.86 - 10.0); unmarried (OR 10.13; 95% CI 1.2 - 81.09); drug use (OR 3.76; 95% CI 0.38 - 36.3); and blood transfusion (OR 2.45; 95% CI 0.27 - 22.37). Similarly, on multivariate analysis, the independent determinants for syphilis infection were having concurrent sexual partners (OR 2.16; 95% CI 0.38 - 12.12); and blood transfusion (OR 5.07; 95% CI 0.51 - 50.37). Consistent with similar studies worldwide, our results suggest high prevalence of HIV and syphilis infections among migrant workers who work in gold mining centres in Ghana.
Maternal challenges of exclusive breastfeeding and complementary feeding in Ghana
Akwasi Kumi-Kyereme,Anthony Mwinilanaa Tampah-Naah,Joshua Amo-Adjei
- , 2019, DOI: 10.1371/journal.pone.0215285
Abstract:
Aetiology of Acute Lower Respiratory Infections among Children Under Five Years in Accra, Ghana
Theophilus K. Adiku,Richard H. Asmah,Onike Rodrigues,Bamenla Goka,Evangeline Obodai,Andrew A. Adjei,Eric S. Donkor,George Armah
Pathogens , 2015, DOI: 10.3390/pathogens4010022
Abstract: The study aimed to investigate the aetiological agents and clinical presentations associated with acute lower respiratory infections (ALRI) among children under five years old at the Korle-Bu Teaching Hospital in Ghana. This was a cross-sectional study carried from February to December 2001. Nasopharyngeal aspirates and venous blood specimens obtained from 108 children with features suggestive of ALRI, were cultured and the isolated bacterial organisms were identified biochemically. Nasopharyngeal aspirates were also tested for Respiratory Syncitial Virus (RSV) antigen using a commercial kit (Becton Dickinson Directigen RSV test kit). A multiplex reverse transcription-PCR (RT-PCR) was also used to detect and characterize RSV using extracted RNA. Socio-demographic and clinical data were also obtained from the study subjects. Bronchopneumonia (55.5%), bronchiolitis (25%), lobar pneumonia (10.2), non-specific ALRI (4.6%), TB, bronchitis and respiratory distress (0.67%) were diagnosed. The prevalence of septicaemia was 10% and bacteria isolated were Staphylococcus aureus, Streptococcus pneumoniae and enteric bacteria, including Salmonella spp., Enterobacter spp and Klebsiella spp, were isolated. Out of the 108 cases, 18% tested positive for RSV, with two cases having RSV as the only aetiological pathogen detected. The subtyping analysis of RSV strains by a multiplex RT-PCR showed that subgroups A and B circulated in the season of analysis.
Cervical human papillomavirus infection in accra, Ghana
AB Domfeh, EK Wiredu, AA Adjei, PFK Ayeh-Kumi, TK Adiku, Y Tettey, RK Gyasi, HB Armah
Ghana Medical Journal , 2008,
Abstract: Background: This study was aimed at estimating the human papillomavirus (HPV) prevalence and its determinants among a sample of Ghanaian women. Design: Cross-sectional observational study. Setting: Gynaecology outpatient clinic of the Korle-Bu Teaching Hospital, Accra, Ghana; the largest tertiary care gynaecology outpatient clinic in Ghana. Participants: Convenient sample of 75 consenting women visiting the clinic. Methods: Information was obtained through personal interviews using structured questionnaire, Pap smears obtained, and laboratory testing of cervical exfoliated cells was performed. HPV DNA was detected using a GP5+/6+ polymerase chain reaction assay. These data were analyzed using both univariate and bivariate techniques. Results: The mean age of participants was 33.3 years (standard deviation, 9.2) and the percentage of lifetime monogamy was 21.3%. The crude HPV DNA prevalence was 10.7%. Unlike most populations studied so far, HPV prevalence was high not only among young women, but also in middle and old age. Independent HPV determinants were being illiterate (prevalence odds ratio [POR], 13.9; 95% confidence interval [95%CI], 1.9-100) and reporting more than three lifetime sexual partners (POR, 4.6; 95% CI, 1.0-22.2). Conclusions: The study indicates a high crude prevalence of HPV in a largely polygamous Ghanaian population with a high crude prevalence in older age groups, which may be a distinctive feature of polygamous populations where HPV transmission continues into middle age and cervical cancer incidence is very high.
第1页/共471条
每页显示 条


Home
Copyright © 2008-2020 Open Access Library. All rights reserved.