267 research outputs found

    The Impact of Face-to-Face Orientation on Online Retention: A Pilot Study

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    Student retention in online education is a concern for students, faculty and administration. Retention rates are 20% lower in online courses than in traditional face-to-face courses. As part of an integration and engagement strategy, a face-to-face orientation was added to an online undergraduate business information systems course to examine its impact on retention. The study methodology consisted of an early email contact, distribution of course documents, a follow-up phone call, and a pre-course face-to-face orientation. The retention rate of students who attended the orientation was over 91% with a p-value of 0.9143. The retention rate of students not attending the orientation was just under 18%. Findings suggest that face-to-face orientations impact retention positively

    Course Revitalization As A Change Driver Throughout Undergraduate Business Curriculum

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    This paper describes the revitalization of Business Information Systems and Communication, a high enrollment, prerequisite course for all undergraduate business students in the Coles College of Business.  An overview of the course components is presented and original structure described. The rationale for change, technologies leveraged and measures of success are presented. The change drivers are identified and their impact on undergraduate curriculum delineated. Lessons learned and future implications are discussed

    Lactatemia during treatment of status asthmaticus in children

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    Background: Transient increase of lactate levels with or without metabolic acidosis has been seldom reported as a complication of β2-adrenergic therapy administered during asthma attacks in children. Objective: The study is aimed to investigate the frequency of lactatemia in children with acute asthma treated with nebulized β2-agonists, and to delineate its causes and effects on prognosis. Methods: We studied 32 asthmatic children; 68.8% had intermittent asthma, and 31.2% had mild persistent asthma. Their ages ranged from 6 to 8 years with a mean of 6.48±0.68 years. Patients were enrolled during acute asthma exacerbation (62.5% had severe and 37.5% had moderate attacks)from the Cairo University Children's Hospital. Patients underwent clinical evaluation, and routine investigations (CBC, PEFR, and total serum IgE) then received nebulized salbutamol at 0.1 mg/kg/dose (minimum 2.5 mg) every 20 min for three doses together with O2. Plasma lactate was determined before, 1 h after, and 24 h following the inhalation therapy. Blood gases were also evaluated before and after the β2-agonist treatment. Results: At 1 h post-treatment, all patients had appreciable lactatemia (4.44±0.78 mmol/L, p < 0.001) compared to the pre-treatment level with a rise of 257±121.5%. Patients with severe attacks demonstrated a higher mean value compared to those with moderate attacks (4.69±0.8 mmol/L versus 4.02±0.6 mmol/L, p < 0.05). At 24 h post-treatment, lactate levels returned to the normal values in most patients (1.91±0.59 mmol/L, p < 0.001) as compared to the 1 h post-treatment level. None of our patients developed metabolic acidosis and all of them showed significant clinical improvement. Our results strongly accuse nebulized salbutamol as the possible pathogenetic factor for lactatemia during therapy of acute asthma attacks, while overworked respiratory muscles and hypoxemia have been excluded as contributing factors. Conclusion: Transient lactatemia is not uncommon during β2-agonist therapy in asthmatic children with acute exacerbation, and is harmless in most cases. Prediction of lactic acidosis prevents inappropriate intensification of therapy especially in patients with more severe attacks or impending respiratory failure.Keywords: Asthma, exacerbation, lactate, lactatemia, β2-agonist, salbutamolEgypt J Pediatr Allergy Immunol 2004; 2(2): 83-8

    Functions of fuzzy logic based controllers used in smart building

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    The main aim of this study is to support design and development processes of advanced fuzzy-logic-based controller for smart buildings e.g., heating, ventilation and air conditioning, heating, ventilation and air conditioning (HVAC) and indoor lighting control systems. Moreover, the proposed methodology can be used to assess systems energy and environmental performances, also compare energy usages of fuzzy control systems with the performances of conventional on/off and proportional integral derivative controller (PID). The main objective and purpose of using fuzzy-logic-based model and control is to precisely control indoor thermal comfort e.g., temperature, humidity, air quality, air velocity, thermal comfort, and energy balance. Moreover, this article present and highlight mathematical models of indoor temperature and humidity transfer matrix, uncertainties of users’ comfort preference set-points and a fuzzy algorithm

    Prenatal diagnosis of a rare case of iniencephaly apertus

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    Iniencephaly is a rare neural tube defect that was firstly reported by Saint-Hilaire in 1836. Its incidence ranges from 0.1 to 10 in 10,000 deliveries with higher incidence in females. The most common features present iniencephaly are bifida at the cervical region, defect in the occipital bone and retroflexion of the head on the cervical spine. Here we report a case of a 24 years old second gravida with a history of consanguinity. She presented with a malformed fetus at 22 weeks gestation diagnosed by detailed ultrasonographic anatomy scan as iniencephaly apparatus. Termination of pregnancy was performed vaginally through medical induction by prostaglandins

    Evaluation of near-surface groundwater aquifers through integrated geophysical and geodetic measurements

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    Abstract Extensive geophysical and geodetic measurements were carried out to evaluate the groundwater aquifer, trace the basement relief, as well as detect the igneous intrusions and structural elements (mainly faults) that affect the occurrence of groundwater in the study area. The fieldwork included resistivity sounding, a geomagnetic survey, and Global Positioning System measurements. The magnetic results showed the presence of a group of main faults in East-west trend at the western part of the area and major fault at the northern part of the area of NW-SW trend. The findings also showed the presence of two igneous rock intrusions located in the middle of the eastern part of the valley. Pronounced differences in the depths of basement rocks have been identified, ranging between 0 and 900 m from the surface. Both high horizontal movements and high shear strain rates have been found to be concentrated at the southeast of the study area and it was noted that high stress was accumulated along the main observed faults and at the main groundwater aquifers. The geoelectrical results confirmed the presence of two aquifers; a shallow aquifer (Quaternary aquifer) that narrows northwards and a Nubian sandstone aquifer, which considered the main aquifer. The Nubian sandstone aquifer carries groundwater in the region, which overlies the last geoelectric unit represented by the basement complex layer and geological structures affecting the potential availability of groundwater in the study area, as proved by the geomagnetic survey and stress accumulation

    Forecasting future prevalence of type 2 diabetes mellitus in Syria

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    Background Type 2 diabetes mellitus (T2DM) is increasingly becoming a major public health problem worldwide. Estimating the future burden of diabetes is instrumental to guide the public health response to the epidemic. This study aims to project the prevalence of T2DM among adults in Syria over the period 2003?2022 by applying a modelling approach to the country?s own data. Methods Future prevalence of T2DM in Syria was estimated among adults aged 25æyears and older for the period 2003?2022 using the IMPACT Diabetes Model (a discrete-state Markov model). Results According to our model, the prevalence of T2DM in Syria is projected to double in the period between 2003 and 2022 (from 10% to 21%). The projected increase in T2DM prevalence is higher in men (148%) than in women (93%). The increase in prevalence of T2DM is expected to be most marked in people younger than 55æyears especially the 25?34æyears age group. Conclusions The future projections of T2DM in Syria put it amongst countries with the highest levels of T2DM worldwide. It is estimated that by 2022 approximately a fifth of the Syrian population aged 25æyears and older will have T2DM

    A rare case of lethal campomelic dysplasia

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    Campomelic dysplasia is a rare and mostly lethal congenital malformation. It is known as an autosomal dominant disorder due to mutations in SOX9, a member of the SOX (SRY-related HMG box) gene family. Here we report a case of a 26 years old primigravida married for 3 years with a history of consanguinity. She was impregnated by intracytoplasmic sperm injection (ICSI) due to male factor infertility. This mostly lethal skeletal anomaly was diagnosed by detailed ultrasonography in the late second trimester. She underwent an induction of labor termination due to intrauterine fetal demise
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