123 research outputs found
Managing Dietary Energy Intake by Broiler Chickens to Reduce Production Costs and Improve Product Quality
Feeding constitutes the highest variable cost in poultry production, accounting for at least 60% of such costs, especially in an intensive rearing system. Energy intake is an essential factor in broiler production because of its involvement in growth rate, carcass quality as well as its role in the development of certain metabolic diseases. Dietary energy is supplied in broiler nutrition through different feed resources. Dietary energy content strongly regulates feed consumption, and energy is the most expensive item in poultry diets. At the same time, excess energy intake may result in an increased fat deposition, which affects meat quality and consumer health. This chapter explores the implication of imbalance in energy intake, possible nutritional strategies to restrict energy intake without reducing performance and hence improving meat quality
Neuro-GPT: Developing A Foundation Model for EEG
To handle the scarcity and heterogeneity of electroencephalography (EEG) data
for Brain-Computer Interface (BCI) tasks, and to harness the power of large
publicly available data sets, we propose Neuro-GPT, a foundation model
consisting of an EEG encoder and a GPT model. The foundation model is
pre-trained on a large-scale data set using a self-supervised task that learns
how to reconstruct masked EEG segments. We then fine-tune the model on a Motor
Imagery Classification task to validate its performance in a low-data regime (9
subjects). Our experiments demonstrate that applying a foundation model can
significantly improve classification performance compared to a model trained
from scratch, which provides evidence for the generalizability of the
foundation model and its ability to address challenges of data scarcity and
heterogeneity in EEG
Primary nocturnal enuresis in children presenting to the outpatient Department of Khartoum ENT Teaching Hospital with adenotonsillar hypertrophy
ABSTRACT Background: Primary Nocturnal Enuresis (PNE) is a common health problem seen in childhood. It has many risk factors that can play a role in its etiology including an untreated adenotonsillar hypertrophy (ATH) which is the most common etiology of obstructed sleep apnea (OSA). Objective: This study was undertaken to determine the prevalence of PNE in children with adenotonsillar hypertrophy (ATH) and to reveal the relation of PNE with severity of ATH in Sudanese children. Material and Methods: A total of two hundreds and ninety patients diagnosed with ATH were recruited in this prospective study with age ranging from 5 to 15 years. The study was conducted in Khartoum ENT teaching hospital from Jan. to May 2012. Results: From 290 patients with adenotonsillar hypertrophy, 114 (39.3%) were proved to have primary nocturnal enuresis. From these 114 children, 86 (75.4%) were wetting their beds at least once a week. Almost half of the study population had grade 3 adenotonsillar hypertrophy. However, no statistically significant relationship was found between frequency of primary nocturnal enuresis and grading of adenotonsillar hypertrophy. Conclusion: Prevalence of primary nocturnal enuresis in children with adenotonsillar hypertrophy was high (40%). Children presenting with nocturnal enuresis should be evaluated for adenotonsillar hypertrophy. There is no association between primary nocturnal enuresis and severity of upper airway obstruction caused by adenotonsillar hypertrophy
Correlation of ultrasonographic estimated fetal weight with actual birth weight at a rural setting
Background: Ultrasound estimation of fetal weight in term pregnancies is used to determine fetal growth. The objective of this study was to assess the precision of sonographic estimation of fetal weight in normal vaginal deliveries at a rural setting.Methods: The study was cross-sectional. A group of 74 pregnant women delivered normally in Muglad hospital in West Kordofan, Sudan, were considered in the study. Fetal weight was estimated by Hadlock and shephards formulae within one week prior to delivery and then newborn weight was taken within 24 hours after delivery. Data were collected by a questionnaire and medical examination as well as sonographic examination. Data analysis was done by SPSS version 23 and Kruskal Wallis Test (post-hoc analysis) Pearson’s correlation coefficient within 95% confidence interval. p value <0.05 was considered as statistically significant.Results: The correlation, by Paired sample, to assess fetal weight was as follows: between Hadlock and shephards was 0.901 (p < 0.001), between Hadlock and AFW was 0.908 (p < 0.001) and between Shephards and AFW was 0.781 (p < 0.001).Conclusions: Estimation of fetal weight by Hadlock has been more correlated with actual fetal weight (AFW) than that done with shephards. The study recommends using Hadlock formula which is more accurate in estimation of fetal weight by sonography
May Measurement Month 2017: an analysis of blood pressure screening in Sudan-Northern Africa and Middle East
Elevated blood pressure (BP) is a growing burden worldwide, leading to over 10 million deaths each year. Sudan has the second highest prevalence of hypertension in North Africa. One in four people with a non-communicable disease has hypertension. May Measurement Month (MMM) is a global initiative, aimed at raising awareness of high BP to act as a temporary solution to the lack of screening programs worldwide. The MMM screening survey provided an opportunity to correlate between unique risk factors and BP levels among Sudanese population. Such an approach allows for directing efforts towards setting the appropriate preventive measures as opposed to disease treatment. An opportunistic cross-sectional survey of volunteers aged ≥18 was carried out in May 2017. Blood pressure measurement, the definition of hypertension and statistical analysis followed the standard MMM protocol. The study was conducted at 100 sites distributed in four states: Khartoum, Gezira, Blue Nile, and Kassala. Overall, a total of 44 413 participants were enrolled in the survey. After imputation, 7332 out of 44 118 participants with an available mean of the second and third readings had hypertension (16.6%). A total of 6956 (15.9%) participants were found to have hypertension of the 43 742 who were not receiving treatment. Among participants who were on treatment, 155 out of 374 (41.3%) had uncontrolled BP. After adjusting for age and sex, systolic and diastolic BP's were significantly higher in those receiving antihypertensive treatment, with a previous history of stroke and with elevated body mass index. Systolic BP was significantly higher in people with diabetes and with previous myocardial infarction. Smoking was associated with increased diastolic BP and decreased systolic BP. Alcohol intake as well as BP measurement on left vs. right arm had no association with BP reading. The MMM17 was the largest BP screening campaign ever held in the country. A considerable percentage of detected hypertensives were not on treatment with a significant proportion of uncontrolled hypertension among those on treatment. These results suggest that opportunistic screening can identify significant numbers with raised BP
Medical students' perceptions of complementary and alternative medicine therapies: A pre- and post-exposure survey in Majmaah University, Saudi Arabia
Background: Evidently, Complementary and Alternative Medicine (CAM) is increasingly a recognized medical practice that efficiently uses multiple treatment therapies and techniques in promoting the health and wellbeing of people as well as preventing and managing a variety of human disorders. Research in CAM, which courses exposure to diverse healthcare professionals, is important from many perspectives including improvement in teaching skills of faculty, enhancing capacity building, and innovative curriculum development. This pre- and post-design crosssectional study aimed to assess perceptions, training needs, personal usage, use in office practice, and knowledge of two batches of medical students toward CAM therapies in Majmaah University, Saudi Arabia.Materials and Methods: The second year medical students of the first (year 2012-13) and second (year 2013-2014) batch [n=26 & 39, respectively] were selected for this study. A reliable 16-item self-administered questionnaire was distributed among all students for answering before and after the 48-hour specific 19 CAM therapies course, in terms of CAM therapies are clearly conventional or alternative, training needs, effectiveness, personal use, use in practice, management of two clinical cases by CAM or conventional therapies, and views about which evidence based approach strongly support individual CAM modalities.Results: Medical students' knowledge and perceptions of CAM therapies significantly improved across some sub-items of CAM questionnaire with a positive trend in the rest of its items including their views about CAM therapies, need for further training, personal use of therapies and advising patients regarding CAM practices strongly supported by randomized clinical controlled trials and published case studies.Conclusion: CAM course tends to have positive impact on the knowledge and perceptions of medical students, in addition to need for further training, and personal use and use of CAM therapies in practice in line with strong evidence-based data regarding therapeutic efficacy. The preliminary results of this study call for further research in specific CAM modalities with a larger sample in academic settings across the nation. Key words: Medical students; Complementary and Alternative Medicine; CAM course; CAM therapies; pre-post design study; Saudi Arabia
REPAIRS Delphi: A UK and Ireland Consensus Statement on the Management of Infected Arterial Pseudoaneurysms Secondary to Groin Injecting Drug Use
\ua9 2024 The Author(s)Objective: Consensus guidelines on the optimal management of infected arterial pseudoaneurysms secondary to groin injecting drug use are lacking. This pathology is a problem in the UK and globally, yet operative management options remain contentious. This study was designed to establish consensus to promote better management of these patients, drawing on the expert experience of those in a location with a high prevalence of illicit drug use. Methods: A three round modified Delphi was undertaken, systematically surveying consultant vascular surgeons in the UK and Ireland using an online platform. Seventy five vascular surgery units were invited to participate, with one consultant providing the unit consensus practice. Round one responses were thematically analysed to generate statements for round two. These statements were evaluated by participants using a five point Likert scale. Consensus was achieved at a threshold of 70% or more agreement or disagreement. Those statements not reaching consensus were assessed and modified for round three. The results of the Delphi process constituted the consensus statement. Results: Round one received 64 (86%) responses, round two 59 (79%) responses, and round three 62 (83%) responses; 73 (97%) of 75 units contributed. Round two comprised 150 statements and round three 24 statements. Ninety one statements achieved consensus agreement and 15 consensus disagreement. The Delphi statements covered sequential management of these patients from diagnosis and imaging, antibiotics and microbiology, surgical approach, wound management, follow up, and additional considerations. Pre-operative imaging achieved consensus agreement (97%), with computerised tomography angiography being the modality of choice (97%). Ligation and debridement without arterial reconstruction was the preferred approach at initial surgical intervention (89%). Multidisciplinary management, ensuring holistic care and access to substance use services, also gained consensus agreement. Conclusion: This comprehensive consensus statement provides a strong insight into the standard of care for these patients
Use of the analysis of the volatile faecal metabolome in screening for colorectal cancer
Diagnosis of colorectal cancer is an invasive and expensive colonoscopy, which is usually carried out after a positive screening test. Unfortunately, existing screening tests lack specificity and sensitivity, hence many unnecessary colonoscopies are performed. Here we report on a potential new screening test for colorectal cancer based on the analysis of volatile organic compounds (VOCs) in the headspace of faecal samples. Faecal samples were obtained from subjects who had a positive faecal occult blood sample (FOBT). Subjects subsequently had colonoscopies performed to classify them into low risk (non-cancer) and high risk (colorectal cancer) groups. Volatile organic compounds were analysed by selected ion flow tube mass spectrometry (SIFT-MS) and then data were analysed using both univariate and multivariate statistical methods. Ions most likely from hydrogen sulphide, dimethyl sulphide and dimethyl disulphide are statistically significantly higher in samples from high risk rather than low risk subjects. Results using multivariate methods show that the test gives a correct classification of 75% with 78% specificity and 72% sensitivity on FOBT positive samples, offering a potentially effective alternative to FOBT
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