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121.
This study investigated the spatial analysis of tactile hierarchical patterns in 110 early‐blind children aged 6–8 to 16–18 years, as compared to 90 blindfolded sighted children, in a naming and haptic drawing task. The results revealed that regardless of visual status, young children predominantly produced local responses in both tasks, whereas the production of integrated responses emerged later. Development of local and global processing seems to proceed similarly in the two populations, but local processing continued to occur at high levels over a larger age range in the blind. The possibility of visual mediation is pointed out, as totally blind children tended to process information locally more often than blind children with minimal light perception. 相似文献
122.
Ahmed El-Mowafy 《Assessment & Evaluation in Higher Education》2014,39(2):223-241
Fieldwork training is a key component of several practical disciplines. In this study, students’ peer assessment of fieldwork is explored as a method to improve their practical training. Peer assessment theories are first discussed. A framework for peer assessment of fieldwork is proposed, and the steps taken for preparation of students for this task are discussed. A developed marking, feedback and moderation tool of assessment are presented. Application of peer assessment in the field was investigated over a period of two years in one undergraduate unit in the geospatial discipline as an example. Reliability of peer assessment was estimated by measuring the difference between assessments carried out by groups of peer assessors, and its validity was measured by comparing students’ marks with those given by tutors. Results show that students have gained from the peer assessment process, mainly as a formative form of assessment, by better understanding and endeavouring to achieve the objectives of field tasks. Tutors use differences among assessments made by groups of students compared to tutors’ assessments to identify field components that need better explanation of their content and assessment criteria. 相似文献
123.
This paper deals with the problem of stabilization by state feedback control of Takagi–Sugeno (T–S) fuzzy discrete-time systems with multiple fixed delays while imposing positivity in closed-loop. The obtained results are presented under linear programming (LP) form. In particular, the synthesis of state feedback controllers is first solved in terms of Linear programming for the unbounded controls case. This result is then extended to the stabilization problem by nonnegative controls, and stabilization by bounded controls. The stabilization conditions are derived using the single Lyapunov–Krasovskii functional (LKF). An example of a real plant is studied to show the advantages of the design procedure. A comparison between linear programming and LMI approaches is presented. 相似文献
124.
Needs assessment is the process of identifying the gap between a target population's needs and its services. If a gap exists, a program can be designed to effectively respond to those needs. This aticle explores the needs of elderly African immigrants in Minnesota through the use of qualitative interviews. A convenience sampling was used to collect data from 200 available elderly people in eight cities in Minnesota. Data analyses revealed that 90% of them want appropriate nutrition and better delivery of services. Recommendations include support for informal caregivers like family members becuase these efforts can keep older people at home. 相似文献
125.
Jeremy Miciak Garrett Roberts W. Pat Taylor Michael Solis Yusra Ahmed Sharon Vaughn Jack M. Fletcher 《Learning disabilities research & practice》2018,33(1):24-36
We examined the effectiveness of a researcher‐provided reading intervention with 484 fourth graders with significant reading difficulties. Students were randomly assigned to one year of intervention, two years of intervention, or a business‐as‐usual comparison condition (BAU). Students assigned to two years of intervention demonstrated significantly greater gains in reading fluency compared to students who received one year of intervention and the BAU group. Students in both the one‐ and two‐year groups demonstrated similar and significantly larger gains in word reading in comparison to the BAU group. There were no statistically significant differences between the three groups on standardized measures of reading comprehension. We discuss these results in the context of research with late elementary and secondary students targeting reading comprehension. 相似文献
126.
Mohammad Abd-Alrahman Mahmoud Abushariah Raja Noor Ainon Roziati Zainuddin Assal Ali Mustafa Alqudah Moustafa Elshafei Ahmed Othman Omran Khalifa 《Journal of The Franklin Institute》2012,349(7):2215-2242
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
127.
128.
Gradual refinement for application-specific MPSoC design from Simulink model to RTL implementation 总被引:1,自引:0,他引:1
Kai Huang Xiao-lang Yan Sang-il Han Soo-ik Chae Ahmed A. Jerraya Katalin Popovici Xavier Guerin Lisane Brisolara Luigi Carro 《浙江大学学报(A卷英文版)》2009,10(2):151-164
The application-specific multiprocessor system-on-chip (MPSoC) architecture is becoming an attractive solution to deal with increasingly complex embedded applications, which require both high performance and flexible programmability. As an effective method for MPSoC development, we present a gradual refinement flow starting from a high-level Simulink model to a synthesizable and executable hardware and software specification. The proposed methodology consists of five different abstract levels: Simulink combined algorithm and architecture model (CAAM), virtual architecture (VA), transactional accurate architecture (TA), virtual prototype (VP) and field-programmable gate array (FPGA) emulation. Experimental results of Motion-JPEG and H.264 show that the proposed gradual refinement flow can generate various MPSoC architectures from an original Simulink model, allowing processor, communication and tasks design space exploration. 相似文献
129.
Islam is a monotheistic Abrahamic faith characterised by devotional orthopraxy. The actions expected of followers of Islam are closely prescribed in the Qur'an. Muslims understand Ramadan as a mandatory requirement, excused only in the event of illness, infirmity or extremes of age. Due to the increasing popularity of football among Muslims, more and more Muslim football players of all levels make the decision to follow the Ramadan fast while they need to practise and compete. Sports medicine clinicians and scientists have the responsibility to provide them with the knowledge and evidence on how exactly Ramadan fasting impacts on their performance and how to optimise their eating, drinking and sleeping in order to minimise negative effects of their religious practice, should any have been demonstrated. The first International Federation of Football Associations (FIFA) Medical Assessment and Research Centre (F-MARC) study concluded that biochemical, nutritional, subjective well-being and performance variables were not adversely affected in young male national level players who followed Ramadan fasting in a controlled environment. Match performance was however not measured and the study did not include elite level players, leading to the Ramadan consensus meeting in order to answer the remaining questions. The conclusions and recommendations published in this supplement suggest that the best coping strategies will remain individual - as is the choice to fast. 相似文献
130.
Jiarong Li Haijun Jiang Cheng Hu Ahmed Alsaedi 《Journal of The Franklin Institute》2019,356(16):9928-9952
Finite-time and fixed-time synchronization (FAFS) of coupled memristive neural networks (CMNNs) with discontinuous feedback functions are explored in this paper. Firstly, a more comprehensive stability theory is systematically established. Secondly, by designing adaptive feedback controller and discontinuous feedback controller, both finite-time and fixed-time synchronization can be realized through regulating the main control parameter. Thirdly, 1-norm and quadratic-norm Lyapunov functions are considered simultaneously in this article, while in estimating the settling time, the former one is more accurate than the latter one under the same synchronization criteria. Finally, in numerical simulation, the analysis and comparison of the proposed controllers are given to show the effectiveness of the corresponding results. 相似文献