97 research outputs found
Examination of Ife Bronze Casting Culture and Its Decline in Maintenance Practice in Contemporary Society
Ile-Ife, the Yoruba ancient city is known for its vibrant cultural environment. This city of ancient civilization and one of the home for bronze casting in the Western region of Nigeria have made significant contributions to the world of culture through its great artistic traditions in terracotta, bead making, bronze and brass casting that predates Pre-Colonial era. This culture of occupational practice has experienced decline as a result of its discontinuity in modern day Ile-Ife. This study therefore investigates the causes of its decline in practice and also examines the maintenance and sustainability of bronze casting in Ile-Ife. In so doing, this study adopts the interview method to enable the researcher investigates the factors responsible for the decline in bronze casting from the families that were once associated with this art. The findings of this study reveals that, the decline is as a result of many factors including the influence of war, western civilization and culture, education, science and technology. Sequel to this influences, those craftsmen who practiced bronze casting also passed on without replacement. This study concludes that in order to resuscitate bronze casting in Ile-Ife, there is the need to set up bronze casting industry to promote the commercial culture in the history of Ife. Furthermore, the spell on the trade should be revoked and the practice of bronze casting should be sustained
White Matter Integrity and Processing Speed in Sickle Cell Anemia
Objective
The purpose of this retrospective cross-sectional study was to investigate whether changes in
white matter integrity are related to slower processing speed in sickle cell anemia.
Methods
Thirty-seven patients with silent cerebral infarction, 46 patients with normal MRI, and 32
sibling controls (age range 8–37 years) underwent cognitive assessment using the Wechsler
scales and 3-tesla MRI. Tract-based spatial statistics analyses of diffusion tensor imaging (DTI)
and neurite orientation dispersion and density imaging (NODDI) parameters were performed.
Results
Processing speed index (PSI) was lower in patients than controls by 9.34 points (95% confi-
dence interval: 4.635–14.855, p = 0.0003). Full Scale IQ was lower by 4.14 scaled points (95%
confidence interval: −1.066 to 9.551, p = 0.1), but this difference was abolished when PSI was
included as a covariate (p = 0.18). There were no differences in cognition between patients with
and without silent cerebral infarction, and both groups had lower PSI than controls (both
p < 0.001). In patients, arterial oxygen content, socioeconomic status, age, and male sex were
identified as predictors of PSI, and correlations were found between PSI and DTI scalars
(fractional anisotropy r = 0.614, p < 0.00001; r = −0.457, p < 0.00001; mean diffusivity
r = −0.341, p = 0.0016; radial diffusivity r = −0.457, p < 0.00001) and NODDI parameters
(intracellular volume fraction r = 0.364, p = 0.0007) in widespread regions.
Conclusion
Our results extend previous reports of impairment that is independent of presence of infarction
and may worsen with age. We identify processing speed as a vulnerable domain, with deficits
potentially mediating difficulties across other domains, and provide evidence that reduced
processing speed is related to the integrity of normal-appearing white matter using microstructure
parameters from DTI and NODDI
Participatory Epidemiology of Endemic Diseases in West African Cattle – Ethnoveterinary and Bioveterinary Knowledge in Fulani Disease Control
Fulani pastoralists in Nigeria lack adequate access to good quality veterinary services and often resort to treating their animals themselves. There are several negative aspects to this, including poor treatment outcomes, misuse of veterinary drugs and subsequent resistance, and further barriers to good relations between pastoralists and veterinary services. A participatory epidemiology survey was undertaken in Fulani communities, to examine their ability to diagnose and treat bovine diseases. Qualitative participatory epidemiology techniques including semi-structured interviews, ranking and participant and non-participant observations were used for data collection. Quantitative analysis to match Fulani disease descriptions to veterinary diseases was done by hierarchical clustering and multi-dimensional scaling. A concurrent parasitological survey for soil-transmitted parasites, trypanosomiasis and tick-borne diseases was undertaken to validate results.Fulani pastoralists displayed high levels of ethnoveterinary knowledge and good clinical diagnostic abilities. Diseases considered important by pastoralists included: hanta (CBPP); sammore (trypanosomiasis); boro (foot and mouth disease), gortowel (liver fluke), dauda (parasitic gastro-enteritis with bloody diarrhoea) and susa (parasitic gastro-enteritis). The parasitology survey supported the participatory epidemiology results but also showed a high prevalence of tick-borne diseases that were not mentioned by pastoralists in this study. The use of “hanta” to describe CBPP is important as the accepted translation is liver-fluke (hanta is the Hausa word for liver). Gortowel and dauda, two previously undescribed Fulfulde disease names have now been matched to liver fluke and PGE with bloody diarrhoea. Fulani showed low levels of bovine veterinary knowledge with mostly incorrect veterinary drugs chosen for treatment. Levels of ethno- and bio-veterinary knowledge and their application within pastoralist livestock healthcare practices are discussed. Keywords: Fulani, Pastoralist, Cattle, Participatory epidemiology, Participatory diagnosis, Ethnoveterinary knowledg
Participatory Epidemiology of Endemic Diseases in West African Cattle – Ethnoveterinary and Bioveterinary Knowledge in Fulani Disease Control
Fulani pastoralists in Nigeria lack adequate access to good quality veterinary services and often resort to treating their animals themselves. There are several negative aspects to this, including poor treatment outcomes, misuse of veterinary drugs and subsequent resistance, and further barriers to good relations between pastoralists and veterinary services. A participatory epidemiology survey was undertaken in Fulani communities, to examine their ability to diagnose and treat bovine diseases. Qualitative participatory epidemiology techniques including semi-structured interviews, ranking and participant and non-participant observations were used for data collection. Quantitative analysis to match Fulani disease descriptions to veterinary diseases was done by hierarchical clustering and multi-dimensional scaling. A concurrent parasitological survey for soil-transmitted parasites, trypanosomiasis and tick-borne diseases was undertaken to validate results.Fulani pastoralists displayed high levels of ethnoveterinary knowledge and good clinical diagnostic abilities. Diseases considered important by pastoralists included: hanta (CBPP); sammore (trypanosomiasis); boro (foot and mouth disease), gortowel (liver fluke), dauda (parasitic gastro-enteritis with bloody diarrhoea) and susa (parasitic gastro-enteritis). The parasitology survey supported the participatory epidemiology results but also showed a high prevalence of tick-borne diseases that were not mentioned by pastoralists in this study. The use of “hanta” to describe CBPP is important as the accepted translation is liver-fluke (hanta is the Hausa word for liver). Gortowel and dauda, two previously undescribed Fulfulde disease names have now been matched to liver fluke and PGE with bloody diarrhoea. Fulani showed low levels of bovine veterinary knowledge with mostly incorrect veterinary drugs chosen for treatment. Levels of ethno- and bio-veterinary knowledge and their application within pastoralist livestock healthcare practices are discussed. Keywords: Fulani, Pastoralist, Cattle, Participatory epidemiology, Participatory diagnosis, Ethnoveterinary knowledg
Design and Implementation of An Improved Digital Video Surveillance System
Video surveillance systems also known as Close Circuit Television (CCTV) is the systematic investigation or monitoring of the actions or communications of one or more persons in a place. Video surveillance has been a key component in ensuring security at various institutions due to the increase in crime rate ranging from armed robbery, kidnapping and recently bomb blasts around the globe which has necessitated its installation in most establishments.This study therefore described the steps involved in designing an improved video surveillance system. The study discussed the theory of improved video surveillance types, components involved, selection of the best equipment and the details of its virtual design. The system was designed to monitor the footages of a particular surrounding with acamera resolution of 1680 by 1050 and the monitor displayed the desired output from a simulated implementation of the system with the router which served as an internet connection that transmitted the signal over the internet to any device with internet access.An improved video surveillance system has therefore become a foremost global strategic tool for fighting the war against terrorism, preventing crime, protecting cooperate assets and enhancing public safety which has made forensic investigations very easier for the police force. Keywords: Improved Video surveillance system, Communications, Security, Footages, Virtual Design, Close Circuit Television, Internet Access. DOI: 10.7176/CEIS/11-2-07 Publication date: April 30th 202
Outcomes following kidney transplantation in patients with sickle cell disease: The impact of automated exchange blood transfusion
There are over 12,000 people with sickle cell disease (SCD) in the UK, and 4–12% of
patients who develop Sickle Cell Nephropathy (SCN) progress to End Stage Renal Disease
(ESRD). Renal transplantation offers the best outcomes for these patients with but their
access to transplantation is often limited. Regular automated exchange blood transfusions
(EBT) reduce the complications of SCD and may improve outcomes. However, concerns
over alloimmunisation limit its widespread implementation. In this retrospective multicenter
study, data were collected on 34 SCD patients who received a kidney transplant across 6
London Hospitals between 1997 and 2017. 20/34 patients were on an EBT program, pre or
post renal transplantation. Overall patient and graft survival were inferior to contemporaneous UK data in the ESRD population as a whole, a finding which is well-recognised. However, patient survival (CI 95%, p = 0.0032), graft survival and graft function were superior at
all time-points in those who received EBT versus those who did not. 4/20 patients (20%) on
EBT developed de novo donor specific antibodies (DSAs). 3/14 patients (21%) not on EBT
developed de novo DSAs. The incidence of rejection in those on EBT was 5/18 (28%), as
compared with 7/13 (54%) not on EBT. In conclusion, our data, while limited by an inevitably
small sample size and differences in the date of transplantation, do suggest that long-term
automated EBT post renal transplant is effective and safe, with improvement in graft and
patient outcomes and no increase in antibody formation or graft rejection
Biopsychosocial Predictors of Quality of Life in Paediatric Patients With Sickle Cell Disease
Sickle cell disease (SCD) refers to a group of inherited blood disorders with considerable morbidity that causes severe pain, reduces life expectancy, and requires significant self-management. Acute painful episodes are the hallmark of SCD, but persistent daily pain is also highly prevalent in this population. Characterising the impact and experience of SCD-related morbidity (i.e., sleep disruption, frequent emergency department visits, cognitive dysfunction) on health-related quality of life (HRQOL) requires multiple assessment methods to best capture the underlying mechanisms. To gain a greater understanding of the effect of common symptom categories on HRQOL and to determine potential pain coping targets, the present study investigated whether demographic, socioeconomic, sleepiness, pain burden, frequency of emergency department (ED) visits, and cognition predicted HRQOL in a paediatric sample of patients with SCD. Our study was a secondary analysis of baseline assessment data of children with SCD aged 8-15 years (n = 30) in the Prevention of Morbidity in Sickle Cell Anaemia Phase 2b (POMSb2) randomised controlled clinical trial of auto-adjusting continuous positive airways pressure. Patients completed cognitive testing (IQ, Processing Speed Index, Delis-Kaplan Executive Function Scale (DKEFS) Tower, Conner's Continuous Performance Test), sleepiness (Epworth Sleepiness Scale), and HRQOL (PedsQL Sickle Cell Module) at baseline. Patients reported pain burden (Sickle Cell Pain Burden Inventory-Youth) each month over 8 visits. Caregivers provided demographic information and reported their child's executive function (Behavioural Rating Inventory of Executive Function) at baseline. Data from our analysis demonstrated that demographic factors (i.e., age, gender, level of neighbourhood deprivation) and treatment variables (i.e., hydroxyurea use) did not independently predict HRQOL, and laboratory values (i.e., haemoglobin, haematocrit, mean oxygen saturation) were not significantly correlated with HRQOL (ps > 0.05). However, sleepiness, pain burden, ED visits, and executive dysfunction independently predicted HRQOL (R 2 = 0.66) with large effects (η2 = 0.16 to 0.32). These findings identify specific, measurable symptom categories that may serve as targets to improve HRQOL that are responsive to change. This knowledge will be useful for multimodal interventions for paediatric patients with SCD that include sleep management, pain coping strategies, and executive function training
Outcomes following kidney transplantation in patients with sickle cell disease: The impact of automated exchange blood transfusion
There are over 12,000 people with sickle cell disease (SCD) in the UK, and 4–12% of
patients who develop Sickle Cell Nephropathy (SCN) progress to End Stage Renal Disease
(ESRD). Renal transplantation offers the best outcomes for these patients with but their
access to transplantation is often limited. Regular automated exchange blood transfusions
(EBT) reduce the complications of SCD and may improve outcomes. However, concerns
over alloimmunisation limit its widespread implementation. In this retrospective multicenter
study, data were collected on 34 SCD patients who received a kidney transplant across 6
London Hospitals between 1997 and 2017. 20/34 patients were on an EBT program, pre or
post renal transplantation. Overall patient and graft survival were inferior to contemporaneous UK data in the ESRD population as a whole, a finding which is well-recognised. However, patient survival (CI 95%, p = 0.0032), graft survival and graft function were superior at
all time-points in those who received EBT versus those who did not. 4/20 patients (20%) on
EBT developed de novo donor specific antibodies (DSAs). 3/14 patients (21%) not on EBT
developed de novo DSAs. The incidence of rejection in those on EBT was 5/18 (28%), as
compared with 7/13 (54%) not on EBT. In conclusion, our data, while limited by an inevitably
small sample size and differences in the date of transplantation, do suggest that long-term
automated EBT post renal transplant is effective and safe, with improvement in graft and
patient outcomes and no increase in antibody formation or graft rejection
Serial prophylactic exchange blood transfusion in pregnant women with sickle cell disease (TAPS-2):study protocol for a randomised controlled feasibility trial
BACKGROUND: Pregnancies in women with sickle cell disease (SCD) are associated with a higher risk of sickle and pregnancy complications. Limited options exist for treating SCD during pregnancy. Serial prophylactic exchange blood transfusion (SPEBT) has been shown to be effective in treating SCD outside pregnancy, but evidence is lacking regarding its use during pregnancy. The aim of this study is to assess the feasibility and acceptability of conducting a future phase 3 randomised controlled trial (RCT) to establish the clinical and cost effectiveness of SPEBT in pregnant women with SCD.METHODS: The study is an individually randomised, two-arm, feasibility trial with embedded qualitative and health economic studies. Fifty women, 18 years of age and older, with SCD and a singleton pregnancy at ≤ 18 weeks' gestation will be recruited from six hospitals in England. Randomisation will be conducted using a secure online database and minimised by centre, SCD genotype and maternal age. Women allocated to the intervention arm will receive SPEBT commencing at ≤ 18 weeks' gestation, performed using automated erythrocytapheresis every 6-10 weeks until the end of pregnancy, aiming to maintain HbS% or combined HbS/HbC% below 30%. Women in the standard care arm will only receive transfusion when clinically indicated. The primary outcome will be the recruitment rate. Additional endpoints include reasons for refusal to participate, attrition rate, protocol adherence, and maternal and neonatal outcomes. Women will be monitored throughout pregnancy to assess maternal, sickle, and foetal complications. Detailed information about adverse events (including hospital admission) and birth outcomes will be extracted from medical records and via interview at 6 weeks postpartum. An embedded qualitative study will consist of interviews with (a) 15-25 trial participants to assess experiences and acceptability, (b) 5-15 women who decline to participate to identify barriers to recruitment and (c) 15-20 clinical staff to explore fidelity and acceptability. A health economic study will inform a future cost effectiveness and cost-utility analysis.DISCUSSION: This feasibility study aims to rigorously evaluate SPEBT as a treatment for SCD in pregnancy and its impact on maternal and infant outcomes.TRIAL REGISTRATION: NIH registry (www.clinicaltrials.gov), registration number NCT03975894 (registered 05/06/19); ISRCTN (www.isrctn.com), registration number ISRCTN52684446 (retrospectively registered 02/08/19).</p
Structural connectivity mediates the relationship between blood oxygenation and cognitive function in sickle cell anemia
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