Cognitive Skills Acquisition and Computer Based Intelligent Tutoring Tools

Cognitive skills are concerned with analysis, interpretation and decision making required for performing procedural tasks. Since much of this process runs inside a human mind, the development of cognitive skill may largely rely on self-explanation as a mechanism for forming better procedures by clustering elementary operations and pushing them to the subconscious level. The paper describes possible categorisation of learning resources to match the different phases of skill acquisition. It discusses an implementation of a cognitive apprenticeship-based learning environment ‘Byzantium’ and an independent feedback on its use in real classroom. Its generic design philosophy is described, together with a commentary that places Byzantium in the tradition of Gordon Pask's adaptive teaching machines and conversational tutorial systems.     

数控课程教学模式研究

为培养数控技术的应用型人才,适应机床数控技术日新月异发展的需要,对机床数控技术课程的教学模式进行改革.结合多种现代化的教学手段和多媒体数控实验室,理论教学采用课堂授课、现场教学和双语教学相结合的全方位的教学模式,实验教学采用模拟验证性实验、设计性实验和综合性实验等不同的实验方法,取得较为理想的教学效果.     

最新发现的张羲年纂四库提要稿

文童首次从张羲年的《瞰蔗全集》一书中发掘出了三篇四库提要稿,并与《四库全书总目》中的同名提要进行了比较。     

The Impact of a Course on Nature of Science Pedagogical Views and Rationales

This study explored changes in preservice teachers’ (PSTs) nature of science pedagogical (NOSP) views and nature of science (NOS) rationales using pre- and post-course written responses as well as interview data. Through systematic analysis, themes were generated and compared to the NOS literature. Comparisons between pre- and post-course data demonstrate improved and deepened NOS views, NOSP views that are more aligned with NOS literature, and a greater number of rationales for including NOS. All participants were enrolled in the “Inquiry and Natures of Science, Technology, and Engineering” (INSTE) course. However, six participants were enrolled in INSTE as their first course in which NOS and NOSP were addressed. The other six participants were enrolled in INSTE as their second course in which NOS and NOSP were addressed, with science methods as their first course in which NOS and NOSP were addressed. By comparing participants enrolled in INSTE as their first course to those enrolled in INSTE as their second course, we observed that NOS understanding seemed to develop in a first experience alongside some NOS rationales, but NOSP views lagged for participants in INSTE as their first course. Participants enrolled in INSTE as their second course developed more robust and literature-aligned NOSP views and more multifaceted NOS rationales. Therefore, this study bolsters arguments that teachers need to receive extended NOS and NOSP instruction.     

Ultrasound imaging in medical student education: Impact on learning anatomy and physical diagnosis

Ultrasound use has expanded dramatically among the medical specialties for diagnostic and interventional purposes, due to its affordability, portability, and practicality. This imaging modality, which permits real‐time visualization of anatomic structures and relationships in vivo, holds potential for pre‐clinical instruction of students in anatomy and physical diagnosis, as well as providing a bridge to the eventual use of bedside ultrasound by clinicians to assess patients and guide invasive procedures. In many studies, but not all, improved understanding of anatomy has been demonstrated, and in others, improved accuracy in selected aspects of physical diagnosis is evident. Most students have expressed a highly favorable impression of this technology for anatomy education when surveyed. Logistic issues or obstacles to the integration of ultrasound imaging into anatomy teaching appear to be readily overcome. The enthusiasm of students and anatomists for teaching with ultrasound has led to widespread implementation of ultrasound‐based teaching initiatives in medical schools the world over, including some with integration throughout the entire curriculum; a trend that likely will continue to grow. Anat Sci Educ 10: 176–189. © 2016 American Association of Anatomists.     

Calling Iranian learners of L2 English: effect of gloss type on lexical retention and reading performance under different learning conditions

This study sought to compare how three different gloss types (text–picture, text–audio and text–picture–audio) affected English as a foreign language (EFL) learners' reading comprehension and vocabulary acquisition. The study also compared how results on comprehension and vocabulary acquisition differed across three learning conditions (i.e., incidental, intentional and explicit instruction). A between‐groups design was employed with four groups (N = 135) of Iranian university learners of L2 English. The participants (with upper‐intermediate proficiency level) read English texts. Written recall and multiple‐choice questions were used to measure reading comprehension; vocabulary knowledge scale (VKS) and contextualized vocabulary knowledge test (CVKT) were used to assess vocabulary acquisition. Results of statistical analyses revealed that while the text–picture–audio gloss type consistently resulted in better vocabulary learning and reading comprehension, the learning conditions varied in terms of their immediate and delayed effect on vocabulary and reading scores. This study suggests that learner performances across gloss types are condition specific and provides both pedagogical and theoretical implications. What is already known about this topic

• Electronic glosses foster reading comprehension and vocabulary acquisition.
• There are different positions about the effectiveness of form focused instruction in grammar, with the focus on forms approach having a higher acceptable rate in SLA. But, this issue has been rarely researched in vocabulary acquisition.

What this paper adds

• This study supports the complementary nature of dual annotations in vocabulary learning and reading comprehension.
• This study extends the issue of form focused instruction to vocabulary learning by comparing the incidental, intentional and incidental–intentional learning orientations.
• This study evaluates the interaction between the multiple gloss types and the learning orientations.

Implications for theory, policy or practice

• This study provides both pedagogical and theoretical implications.

     

A nomogram of the neonatal peak of urinary follicle stimulating hormone,luteinizing hormone and testosterone in normal male infants

Daily urinary follicle stimulating hormone (FSH), luteinizing hormone (LH) and testosterone (T) levels were estimated in a group of 10 normal one month old male infants. Four-hourly urine samples were collected from each infant over a three months period i.e., from one month to four months of infants age. The hormonal levels were expressed as mIU of FSH, LH and ng of T per mg creatinine. The normal hormonal pattern thus obtained could be used to compare patterns obtained from pathological cases or when monitoring the effects of drugs on infants.     

Insulin or sulfonylurea treatments of the diabetics differentially affect erythrocyte membrane and serum enzymes and extent of protein glycosylation

Erythrocyte membrane protein glycosylation increase by 3.4 fold in diabetes. Insulin or sulfonylurea treatment did not reduce the extent of glycosylation. The serum protein glycosylation was comparable in all the groups including control. Erythrocyte membrane Na⁺,K⁺-ATPase activity decreased in the diabetics; only insulin treatment partly restored the activity. Erythrocyte membrane acetylcholinesterase activity decreased only in the sulfonylurea treated group. Serum butyrylcholinesterase activity was relatively low in the diabetic and insulin treated diabetic groups. The Km and Vmax of the two components of Na⁺,K⁺-ATPase from erythrocyte membranes were differently affected in the diabetic and the two treatment groups. The Vmax of acetylcholinesterase decreased only in the sulfonylurea treated group. Diabetic states resulted in decreased Vmax of components I and II of serum butyrylcholinesterase. In insulin-treated diabetics, component II was absent. Sulfonylurea group resembled diabetics.In vitro incubation with insulin differentially affected the Na⁺,K⁺-ATPase and serum butyrylcholinesterase activities.