HYPOGLYCAEMIA AS A CONSEQUENCE OF PRE-OPERATIVE FASTING: MYTH OR REALITY?

Background: The fatal risk of pulmonary aspiration of gastric contents during anaesthesia had since been recognized and consequently preoperative fasting guideline is usually prescribed to prevent this. Concern about development of hypoglycaemia during prolonged fasting has often been expressed, especially in children. AIM: This study is intended to determine the fasting blood glucose in preoperative patients of different age groups who were fasted for varying duration of time, and determine whether indeed hypoglycaemia occurs during inadvertently prolonged fasting which we often encounter in our practice setting. Methodology: A prospective cohort study of fasting blood glucose (FBG) of patients presenting for elective surgery in the principal investigator\u27s operating rooms at the National Orthopaedic Hospital, Enugu, Nigeria was carried out. Blood glucose meter was used for estimation of glucose in capillary whole blood of the patients and the obtained data were analysed using SPSS version 16.0 statistical software. Comparison of mean values was done using the Chi-square test with statistical significance put at P < 0.05.  Results: Out of one hundred and thirty three patients studied with mean age of 30.2 ± 19.60 years (range: 1-72 years), and mean duration of fasting 12.73 ± 2.01 hours, (range: 8-16 hours), the mean fasting blood glucose was found to be 91.49 ± 13.36mg/dl (range: 58 - 124mg/dl). No relationship was found between age and FBG (Pearson\u27s correlation coefficient, r = 0.025). Likewise duration of fasting did not relate with FBG (Pearson\u27s correlation coefficient, r = 0.088). One patient (0.8%) had hypoglycaemia, with blood glucose of 58mg/dl. Conclusion: Hypoglycaemia as a consequence of pre-operative fasting is rare, even in non-infants fasted for considerably long hours. Neither patient\u27s age, gender, nor duration of fasting had any significant influence on the fasting blood glucose of the patients. Keywords: Hypoglycaemia; Pre-operative fasting; Whole blood; Plasma

HYPOGLYCAEMIA AS A CONSEQUENCE OF PRE-OPERATIVE FASTING: MYTH OR REALITY?

Background: The fatal risk of pulmonary aspiration of gastric contents during anaesthesia had since been recognized and consequently preoperative fasting guideline is usually prescribed to prevent this. Concern about development of hypoglycaemia during prolonged fasting has often been expressed, especially in children. AIM: This study is intended to determine the fasting blood glucose in preoperative patients of different age groups who were fasted for varying duration of time, and determine whether indeed hypoglycaemia occurs during inadvertently prolonged fasting which we often encounter in our practice setting. Methodology: A prospective cohort study of fasting blood glucose (FBG) of patients presenting for elective surgery in the principal investigator's operating rooms at the National Orthopaedic Hospital, Enugu, Nigeria was carried out. Blood glucose meter was used for estimation of glucose in capillary whole blood of the patients and the obtained data were analysed using SPSS version 16.0 statistical software. Comparison of mean values was done using the Chi-square test with statistical significance put at P < 0.05.  Results: Out of one hundred and thirty three patients studied with mean age of 30.2 ± 19.60 years (range: 1-72 years), and mean duration of fasting 12.73 ± 2.01 hours, (range: 8-16 hours), the mean fasting blood glucose was found to be 91.49 ± 13.36mg/dl (range: 58 - 124mg/dl). No relationship was found between age and FBG (Pearson's correlation coefficient, r = 0.025). Likewise duration of fasting did not relate with FBG (Pearson's correlation coefficient, r = 0.088). One patient (0.8%) had hypoglycaemia, with blood glucose of 58mg/dl. Conclusion: Hypoglycaemia as a consequence of pre-operative fasting is rare, even in non-infants fasted for considerably long hours. Neither patient's age, gender, nor duration of fasting had any significant influence on the fasting blood glucose of the patients. Keywords: Hypoglycaemia; Pre-operative fasting; Whole blood; Plasma

EFFECTS OF DESIGN STUDIO CULTURE ON PERFORMANCE OF ARCHITECTURE STUDENTS

Architectural education will not be complete without due reference to its studio culture. This culture consists of patterns, habits and experiences expressed by students in their design studio. The design studio culture has been observed to affect students’ performance over the years. This paper examined the effect of design studio culture on the performance of architecture students. The survey method was adopted to obtain quantitative data from students in selected schools in south-west Nigeria through the use of structured questionnaires. The data gotten was subjected to factor and regression analysis using the Statistical Package for Social Sciences (SPSS). Results gotten showed that the students perceived some other factors to be the core components of design studio culture, in addition to those already identified in the review of literature. The findings also indicated that only four of these components of design studio culture affects students’ performance and they are encouragement, Environment of the design studio, constraint and sacrifice. The paper thus recommends that awareness of design studio culture should be promoted through departmental policies as a way of improving students’ performance

EFFECTS OF DESIGN STUDIO CULTURE ON PERFORMANCE OF ARCHITECTURE STUDENTS

Architectural education will not be complete without due reference to its studio culture. This culture consists of patterns, habits and experiences expressed by students in their design studio. The design studio culture has been observed to affect students’ performance over the years. This paper examined the effect of design studio culture on the performance of architecture students. The survey method was adopted to obtain quantitative data from students in selected schools in south-west Nigeria through the use of structured questionnaires. The data gotten was subjected to factor and regression analysis using the Statistical Package for Social Sciences (SPSS). Results gotten showed that the students perceived some other factors to be the core components of design studio culture, in addition to those already identified in the review of literature. The findings also indicated that only four of these components of design studio culture affects students’ performance and they are encouragement, Environment of the design studio, constraint and sacrifice. The paper thus recommends that awareness of design studio culture should be promoted through departmental policies as a way of improving students’ performance

Kinetics and Equilibrium of Crude Oil Sorption from Aqueous Solution Using Borassus Aeothopum Coir

In this study, Borassus aethopum coir (BAC) which is an abundant, cheap, readily available and biodegradable agricultural waste was modified by acetylation using acetic anhydride and NBS catalyst at room temperature. This was to increase their hydrophobic properties and improve their sorption capacity in aqueous environment. The crude oil sorption kinetic data were fitted by intra-particle diffusion and pseudo-first order for raw BAC but the pseudo-second order kinetic model best fits crude oil sorption data for acetylated BAC.  The Langmuir and Freundlich models were used to elucidate the sorption behaviour of crude oil with raw and acetylated BAC. Freundlich isotherm gave the best fit for the equilibrium crude oil sorption data for acetylated BAC and raw BAC. Fourier transform infrared and scanning electron microscope analyses showed clear evidence of successful acetylation. The results presented and discussed in the study suggests that acetylated BAC (ABAC) is more suitable for crude oil sorption than raw BAC, therefore, possesses more potential for application and further development in treatment of oil spillage. Keywords: acetylated borassus aethopum coir, kinetics, crude oil sorption, sorbents, sorption capacity. DOI: 10.7176/CMR/11-2-02

Evaluation of MgO-ZnO-Crab Shell Biofillers as Reinforcement for Biodegradable Polylactic Acid (PLA) Composite

Biodegradable polyester obtained from renewable, eco-friendly materials, and natural additives made from debris of production of seafood to create biocomposites is nowadays a possibility. This paper evaluates the physical, morphological, and chemical properties and the degradation stability of polylactic acid/biofillers (magnesium oxide/zinc oxide/crab shell particles) composite as a viable biocomposite material in bone engineering applications. The biofiller showed hygroscopic characteristics. Surface morphology of the composite showed fractured surfaces with interconnected pores suitable for bone cells’ implantation enhancement and propagation. Biofillers effect accelerates the precipitation of calcium apatite formation after 28 days of immersion. The XRD spectra confirmed high composite crystallinity structure of 93.4% due to the nucleation effects of the biofillers. The beneficial role of reinforcing polylactic acid polymer with biofiller showed average pH value of 7.36 and apparent porosity of 40%. Findings from this paper have revealed that the use of crab shell debris such as crab shell can become a resource in biocomposite fabrication. The addition of biofillers provided an effective reinforcement in polylactic acid polymer matrix and hence contributed towards sustainable developments of natural resource materials and biodegradable and bioresorbable material without polluting the environment

EFFECTS OF DESIGN STUDIO CULTURE ON PERFORMANCE OF ARCHITECTURE STUDENTS

Architectural education will not be complete without due reference to its studio culture. The said culture consists of a set of reoccurrences such patterns, habits and experiences expressed by students in their design studio. The design studio culture has been observed to affect students’ performance over the years. This paper examined the components of design studio culture already existing from the review of literature. The survey method was adopted to obtain quantitative data from students in selected schools in south-west Nigeria through the use of structured questionnaires. The data gotten was subjected to factor and regression analysis using the Statistical Package for Social Sciences (SPSS). Results gotten showed that the students perceived some other factors to be the core components of design studio culture, in addition to those already identified in the review of literature. The findings also indicated that only four of these components of design studio culture affects students’ performance and they are encouragement, Environment of the design studio, constraint and sacrifice. The paper thus recommends that awareness of design studio culture should be promoted through departmental policies as a way of improving students’ performance. Findings of this study are expected to provide universities empirical grounds that will aid policies and reforms directed at improving academic performance of architecture students

Selecting and Ranking Time Series Models Using the NOEMON Approach

Abstract. In this work, we proposed to use the NOEMON approach to rank and select time series models. Given a time series, the NOEMON approach provides a ranking of the candidate models to forecast that series, by combining the outputs of different learners. The best ranked models are then returned as the selected ones. In order to evaluate the proposed solution, we implemented a prototype that used MLP neural networks as the learners. Our experiments using this prototype revealed encouraging results.

Effects of Design Studio Culture on Creativity of Architecture Students

Architectural education will not be complete without due reference to its studio culture. This Culture consists of habits, patterns and experiences expressed by students in their design studio. The design studio culture has been observed to have affect creativity of students over the years. This paper examines the effect of design studio culture already existing from the review of literature. The study survey method was adopted to obtain quantitative data from the students through the use of structured questionnaires which were administered in the selected schools in southwest Nigeria. The data gotten were subjected to factor and regression analysis using the statistical package for social sciences (SPSS). Results gotten showed that the students perceived the other factors to be the core components of design studio culture in addition to those already identified in the review of literature. The findings also indicated that only five(5) of these components affects architecture students’ creativity. This paper recommends that the awareness of studio culture should be promoted through the departmental policies as a way of improving students creativity. Findings for this study are expected to provide the universities with empirical grounds that will aid policies and reforms directed at improving academic performance of architecture students

Contextual factors predicting compliance behavior during the COVID-19 pandemic: A machine learning analysis on survey data from 16 countries

Voluntary isolation is one of the most effective methods for individuals to help prevent the transmission of diseases such as COVID-19. Understanding why people leave their homes when advised not to do so and identifying what contextual factors predict this non-compliant behavior is essential for policymakers and public health officials. To provide insight on these factors, we collected data from 42,169 individuals across 16 countries. Participants responded to items inquiring about their socio-cultural environment, such as the adherence of fellow citizens, as well as their mental states, such as their level of loneliness and boredom. We trained random forest models to predict whether someone had left their home during a one-week period during which they were asked to voluntarily isolate themselves. The analyses indicated that overall, an increase in the feeling of being caged leads to an increased probability of leaving home. In addition, an increased feeling of responsibility and an increased fear of getting infected decreased the probability of leaving home. The models predicted compliance behavior with between 54% and 91% accuracy within each country’s sample. In addition, we modeled factors leading to risky behavior in the pandemic context. We observed an increased probability of visiting risky places as both the anticipated number of people and the importance of the activity increased. Conversely, the probability of visiting risky places increased as the perceived putative effectiveness of social distancing decreased. The variance explained in our models predicting risk ranged from < .01 to .54 by country. Together, our findings can inform behavioral interventions to increase adherence to lockdown recommendations in pandemic conditions.info:eu-repo/semantics/publishedVersio