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21.
Under-representation of women in engineering has received a great deal of attention, but remained limited largely to a Western context. Thus, this article aims to unveil the barriers to progress, tracking the performance and the emerging trend of success at the undergraduate level of women in engineering in a different cultural dimension. Secondary research, particularly statistical data of female undergraduate engineering students at Qatar University (QU), is used in this study. Findings show that the booming economic development and access to modern education are the key drivers that change the position of women in Qatari society. A shift away from a masculine-dominated society to a more balance masculine/feminine society was identified as the impetus for better enrolment and achievement of female engineering students in Qatar. Similar to the trend in the USA, recruitment and not retention was the reason behind the under-representation of female undergraduate engineering students at QU.  相似文献   
22.
This paper presents our work towards developing a new speech corpus for Modern Standard Arabic (MSA), which can be used for implementing and evaluating Arabic speaker-independent, large vocabulary, automatic, and continuous speech recognition systems. The speech corpus was recorded by 40 (20 male and 20 female) Arabic native speakers from 11 countries representing three major regions (Levant, Gulf, and Africa). Three development phases were conducted based on the size of training data, Gaussian mixture distributions, and tied states (senones). Based on our third development phase using 11 hours of training speech data, the acoustic model is composed of 16 Gaussian mixture distributions and the state distributions tied to 300 senones. Using three different data sets, the third development phase obtained 94.32% and 8.10% average word recognition correctness rate and average Word Error Rate (WER), respectively, for same speakers with different sentences (testing sentences). For different speakers with same sentences (training sentences), this work obtained 98.10% and 2.67% average word recognition correctness rate and average WER, respectively, whereas for different speakers with different sentences (testing sentences) this work obtained 93.73% and 8.75% average word recognition correctness rate and average WER, respectively.  相似文献   
23.

Objectives

The Convention on the Rights of the Child (CRC) was ratified by Saudi Arabia 15 years ago; yet addressing the issue of child maltreatment only began in more recent years. School professionals play a significant role in children's lives, as they spend a great deal of time with them and are hence essential to protecting and identifying those in danger or at risk. The objective of this study is to identify school professional's awareness of child maltreatment and the existing national policies and procedures to examine the extent of efforts made in Saudi Arabia and to activate the roles of schools and school professionals in protecting children from violence and implementation of Article 19 of the CRC.

Methods

This was a cross-sectional study, where school professionals from randomly selected schools throughout the country were invited to participate in a self-administered questionnaire.

Results

A total of 3,777 school professionals participated in the study. Fifty-five percent of professionals had at least 10 years of work experience. A low-level of awareness of child maltreatment was found in about 1/3 of school professionals. Only 1.9% of school professionals had ever attended any sort of specific training on child maltreatment, though 69.3% of those who had not, were willing to attend future training. With regards to awareness of CRC Article 19 or policies and procedures addressing child maltreatment, only 22% reported being aware of it.

Conclusion

The majority of school professionals in Saudi Arabia have a low-intermediate level of awareness of child maltreatment, ratification of CRC, and related national policies and procedures, yet most are willing to attend training programs on this subject matter. Efforts need to be made in the country to fill this gap.  相似文献   
24.
Seeds of a Chinese traditional medicine plant, Cochinchina momordica were used in the present study for the improvement of influenza vaccine (HSN 1) in chicken. Crude extraction from Cochinchina momordica seed (ECMS) was obtained by ethanol extraction method. In experiment No. 1, two weeks old chickens were immunized with influenza vaccine (HSN1) alone or combined with ECMS (5, 10, 20, 40 and 80 μg/dose). Serum IgG antibody levels (by ELISA) as well as effects on dally weight gain were measured on 0, 7, 14 and 28th day after immunization. Results revealed that all ECMS groups numerically increased the antibody levels while 10 and 20 μg/dose groups significantly (P〈0.05) enhanced total IgG antibody on day 28, when compared with control. Average daily weight gain was also significantly higher in 20 μg/dose ECMS group. Adjuvant effect was also confirmed in experiment No. 2 when chickens were immunized with 20 μg/dose ECMS and antibody titer was measured through hemagglutination inhibition (HI). It is concluded that ECMS has potential to improve the immune responses and deserve further study as an adjuvant.  相似文献   
25.
To ensure the success of the e-learning initiatives, OUM has developed its own e-learning management system, known as myLMS. Since its introduction, many modifications and improvements have been introduced to increase its effectiveness. It is now timely that OUM take stock of its students' attitudes towards e-learning. Thus, a survey was conducted on about 1,000 students at one of OUM's own learning centres, that is, the Kelantan Regional Centrel. The study indicated that generally the teacher cohort had a somewhat neutral attitude towards e-learning. The use of e-learning was more specifically aimed at achieving short term goals of obtaining good coursework and examination grades by capitalizing on the use of the Discassion Board and Courseware. A closer examination reveals that the females prefer the Discussion Board while the males prefer the Courseware. Learners in the Engineering and English programmes had more positive attitudes towards e-learning compared to learners in the Mathematics and Science programmes. Learners with CGPA 〉 3.0 who are categorized as high achievers are more positive towards e-learning as compared to the low achievers ( CGPA 〈 3.0). Age difference, learners' income per month, learners' Internet and e-learning habits were also found to be predictors of attitude towards e-learning.  相似文献   
26.
This article aims to explore the symptoms and characteristics of dyscalculia. This is a qualitative study. Five experts in the field of special education took part in a focus group interview. Each expert had more than ten years of experience in their area of expertise. To determine the content validity of the protocol, three experts in special education, language and qualitative research evaluated each of the eight items. Cohen's kappa analysis was used to assess inter-rater reliability. The findings of this study indicate that 59 items have been developed, based on six constructs in the dyscalculia checklist. The six constructs were subitising, estimating, Arabic numerals, verbal numbers, arithmetic facts and calculating processes. Following the focus group interview, a new construct emerged: math anxiety. The study implies that teachers might utilise this checklist to carry out early detection of students with dyscalculia in primary schools. This will enable appropriate intervention, resulting in significant benefits for the Ministry of Education, for educators and teachers, and for the students themselves. Although this study was based in Malaysia, the results have wider implications because dyscalculia is present everywhere.  相似文献   
27.
Although naming speed (NS) has been shown to predict reading into adulthood and differentiate between adult dyslexics and controls, the question remains why NS is related to reading. To address this question, eye movement methodology was combined with three letter NS tasks (the original letter NS task by Denckla & Rudel, Cortex 10:186–202, 1974, and two more developed by Compton, The Journal of Special Education 37:81–94, 2003, with increased phonological or visual similarity of the letters). Twenty undergraduate students with reading difficulties (RD) and 27 without (NRD) were tested on letter NS tasks (eye movements were recorded during the NS tasks), phonological processing, and reading fluency. The results indicated first that the RD group was slower than the NRD group on all NS tasks with no differences between the NS tasks. In addition, the NRD group had shorter fixation durations, longer saccades, and fewer saccades and fixations than the RD group. Fixation duration and fixation count were significant predictors of reading fluency even after controlling for phonological processing measures. Taken together, these findings suggest that the NS–reading relationship is due to two factors: less able readers require more time to acquire stimulus information during fixation and they make more saccades.  相似文献   
28.
There has been increased awareness of child maltreatment in Saudi Arabia recently. This study assessed the readiness for implementing large-scale evidence-based child maltreatment prevention programs in Saudi Arabia. Key informants, who were key decision makers and senior managers in the field of child maltreatment, were invited to participate in the study. A multidimensional tool, developed by WHO and collaborators from several middle and low income countries, was used to assess 10 dimensions of readiness. A group of experts also gave an objective assessment of the 10 dimensions and key informants’ and experts’ scores were compared. On a scale of 100, the key informants gave a readiness score of 43% for Saudi Arabia to implement large-scale, evidence-based CM prevention programs, and experts gave an overall readiness score of 40%. Both the key informants and experts agreed that 4 of the dimensions (attitudes toward child maltreatment prevention, institutional links and resources, material resources, and human and technical resources) had low readiness scores (<5) each and three dimensions (knowledge of child maltreatment prevention, scientific data on child maltreatment prevention, and will to address child maltreatment problem) had high readiness scores (≥5) each. There was significant disagreement between key informants and experts on the remaining 3 dimensions. Overall, Saudi Arabia has a moderate/fair readiness to implement large-scale child maltreatment prevention programs. Capacity building; strengthening of material resources; and improving institutional links, collaborations, and attitudes toward the child maltreatment problem are required to improve the country's readiness to implement such programs.  相似文献   
29.
This paper addresses the output regulation problem for a class of preview control systems, and derives a state feedback law which suppresses the steady-state error caused by the excitation from polynomial or sinusoidal exogenous inputs. Recently, the output regulation condition for the broader class of distributed parameter systems is characterized via the operator regulator equation. We show that a solution of the operator regulator equation specialized to the preview control system is obtained by solving the matrix regulator equation, and provide the state feedback law which attenuates the transient error optimally with respect to an LQ (Linear Quadratic) performance index.  相似文献   
30.
To probe the glutathione peroxidase (GPx) activity coupled to ROS and TNF-α levels in younger versus elderly primigravidas. Monocytes were isolated from blood of young and elderly primigravidas after 12 hrs, 24 hrs and 14 days postpartum. Age-matched healthy female donors served as controls. Thereafter, the above monocytes were subjected to evaluation of GPx activity, levels of pro-inflammatory cytokine TNF-α and reactivity/specificity towards anti-TNF-α antibody. Suppression in GPx activity with simultaneous enhancement of TNF-α levels in monocytes was observed after 12 hrs and 24 hrs of spontaneous labor pain-induced maternal delivery through normal vaginal route. Conversely, an enhancement of GPx activity and decrease in TNF-α levels were observed on day 14 of postpartum, thereby indicating reversal of the impaired neutralizing mechanisms. The antioxidant network combating ROS was stronger in younger primigravidas. Capability of TNF-α and ROS suppression was somewhat lesser in elderly primigravidas even 14 days of postpartum via normal vaginal route. The capability of GPx activity enhancement with simultaneous suppression in ROS and TNF-α, decreases in elderly primigravidas. This may act as one of the important parameters leading to a variety of complications encountered by elderly primigravidas.  相似文献   
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