基于遗传算法的火电单元机组多目标优化协调控制

作者提出了一种基于遗传算法的火电单元机组多目标优化协调控制策略。该策略通过改进的遗传算法进行多目标优化求解机组最优稳态控制量以得到最优设定值，从而完成多目标优化协调控制任务。改进的遗传算法采用十进制编码，规范化几何秩选择，混合交叉及均匀变异。仿真结果表明，在不同的运行目标下控制量的最优适应度函数都能快速收敛，遗传算法为多目标优化协调控制提供了有效的途径。     

Effects of an Ancient Chinese Mathematics Enrichment Programme on Secondary School Students’ Achievement in Mathematics

Ancient Chinese mathematics has been the focus of many research studies and scholarly works from a historical perspective. However, no move has been made to investigate its role in the teaching and learning of mathematics. This pilot study examined the effects of an Ancient Chinese Mathematics Enrichment Programme (ACMEP) on the academic achievement of second-year students from a secondary school in Singapore – a strand of a principle study with the intent of investigating the possible roles of ancient Chinese mathematics in the Singapore secondary school mathematics curriculum. Analysis of covariance was used to examine the difference in mean scores on a variety of formal assessments in mathematics between students who participated in the ACMEP and those who did not. In addition, the scores on formal assessments of other relevant subjects were analyzed to further investigate the ACMEP’s scope of influence.     

The effect of superfluous information on children's solution of story arithmetic problems

Forty 6- to 7-year-old children were tested with single-step, addition/subtraction story problems with and without superfluous numerical information. Half of the children were allowed to find out the solution using objects and half were given pen and paper. Fewer problems with superfluous information than those without such information were solved accurately. Less than half of the problems were attempted with spontaneous modelling with objects and rarely were pen and paper used. In many cases, the use of objects could not facilitate solution of problems with superfluous information thus suggesting that in these cases children's failure to solve the problems could not be explained just by an increase in the cognitive demand for selective attention to, and memory of, the relevant information.     

Towards precision medicine: from quantitative imaging to radiomics

Radiology (imaging) and imaging-guided interventions, which provide multi-parametric morphologic and functional information, are playing an increasingly significant role in precision medicine. Radiologists are trained to understand the imaging phenotypes, transcribe those observations (phenotypes) to correlate with underlying diseases and to characterize the images. However, in order to understand and characterize the molecular phenotype (to obtain genomic information) of solid heterogeneous tumours, the advanced sequencing of those tissues using biopsy is required. Thus, radiologists image the tissues from various views and angles in order to have the complete image phenotypes, thereby acquiring a huge amount of data. Deriving meaningful details from all these radiological data becomes challenging and raises the big data issues. Therefore, interest in the application of radiomics has been growing in recent years as it has the potential to provide significant interpretive and predictive information for decision support. Radiomics is a combination of conventional computer-aided diagnosis, deep learning methods, and human skills, and thus can be used for quantitative characterization of tumour phenotypes. This paper discusses the overview of radiomics workflow, the results of various radiomics-based studies conducted using various radiological images such as computed tomography (CT), magnetic resonance imaging (MRI), and positron-emission tomography (PET), the challenges we are facing, and the potential contribution of radiomics towards precision medicine.     

What is a ‘good’ principal? Perspectives of aspiring principals in Singapore

This paper presents the findings of an exploratory research project that examines what aspiring principals in Singapore think a good principal is, based on a framework of personal, interpersonal, and organizational dimensions of school leadership. According to the findings, a good principal has a moral purpose centered on personal values, a humble disposition, and exudes wisdom. He or she exhibits excellent relational skills, engages in people development, and develops trust among staff. He or she also develops a positive school culture for teaching and learning, builds fruitful relationships with stakeholders, and manages complex issues competently. The findings also suggest that the idea of a good principal is more about who the person is and what he or she stands for, rather than what he or she is capable of. Moreover, while Singapore principals are capable of making hard-nosed decisions and delivering results, they are actually motivated by the ideals of education. This study offers some empirical evidence of the attributes of a ‘good’ principal in the Singapore context.     

Global Consultation Processes: Lessons Learned from Refugee Teacher Consultation Research in Malaysia

ABSTRACT

The process of global consultation has received little attention despite its potential for promoting international mutual understanding with marginalized communities. This article details theory, entry, implementation, and evaluation processes for global consultation research, including lessons learned from our refugee teacher intervention. The first half of the article addresses the entry process, culture-specific strengths, and challenges that can be faced in global consultation, including our experience with a lack of formal regulatory oversight of refugee education. The second half of the article details feedback collected from consultants, peer trainers, and peer trainees indicating which training content was most valuable; how some Burmese refugee teachers strive for a more student-centered, “free” classroom for their refugee students; and, finally, the toll that intense refugee teacher consultation took on the consultants.     

Refugee-Teacher-Train-Refugee-Teacher Intervention Research in Malaysia: Promoting Classroom Management and Teacher Self-Care

ABSTRACT

Given the current refugee crisis, the development of sustainable postconflict refugee education systems and supports is essential. The present study reports Resilient Refugee Education (RRE) intervention effects on refugee teacher confidence and knowledge of classroom management, in addition to refugee teacher self-care in Malaysia. We compared effects on (a) peer trainers, who were refugee teachers trained by consultants (n = 38), and (b) peer trainees, who were refugee teachers trained by peer trainers (n = 78). The sample included teachers who were refugees (n = 97; mean age = 30; 78% Burmese) and nonrefugees (n = 19; mean age = 48; 44% Chinese-Malaysian). Significant effects on teacher knowledge, confidence, and self-care were found for both trainers and trainees, including interactions with gender and education. Implications for sustainable promotion of the emotional context in refugee education are discussed.     

制药企业跨洋合作的前景

全球研发正呈现向亚洲转移的趋势，驱动这一现象的主要原因是研发费用的最优化和创新成果的最大化。身处亚洲的中国和印度在研发模式上具有多样性，制药企业同生物科技公司可分早、中、晚三个阶段进行合作。早期开发合作即利用化学、ADME—TOX筛选技术、药物活性研究和生化信息学缩短药物的研发周期；中期药物开发合作，将先导化合物设计能力同GMP条件进行优势结合，共同开发新剂量和非专利药物的市场：晚期开发合作，如新药的临床Ⅱ、Ⅲ或Ⅳ期转让，通过商业化权利进行风险共享。