Using Digital Technologies to Automate Instructional Design

Abstract

Recent advances in computer‐based interactive digital technologies have presented a broad range of possibilities to create powerful presentations and instructional messages. However, incorporating these new technologies effectively is not a simple task because the design of effective computer‐based instructional material is a complex process. Successful design involves interactions between individual learner characteristics, instructional delivery media, the type of specific knowledge and skills being taught, and the strategies and methods used to teach the material.

This paper discusses:

• — The need for an Automated Instructional Design

• — The integration of learning theory, instructional design and technology

• — Some approaches for automating instructional design

• — An exploration of ID Expert, ? an intelligent computer‐based multimedia instructional development system (beta version 1.0).

     

Gahvora cradling in Tajikistan: Cultural practices and associations with motor development

In Tajikistan, infants are bound supine in a “gahvora” cradle that severely restricts movement. Does cradling affect motor development and body growth? In three studies (2013–2018), we investigated associations between time in the gahvora (within days and across age) and motor skills and flattened head dimensions in 8–24-month-old Tajik infants (N = 269, 133 girls, 136 boys)) and 4.3–5.1-year-old children (N = 91, 53 girls, 38 boys). Infants had later motor onset ages relative to World Health Organization standards and pronounced brachycephaly; cradling predicted walk onset age and the proficiency of sitting, crawling, and walking. By 4–5 years, children's motor skills were comparable with US norms. Cultural differences in early experiences offer a unique lens onto developmental processes and equifinality in development.     

SCAR分子标记监测菌群中的哈茨木霉

研究目的：开发具有种属特异性序列特征性扩增区域（SCAR）标记物来监测哈茨木霉在其入侵的试验菌群中的定殖和生长,为哈茨木霉应用于生物防治等生态和生物技术中提供支撑。 创新要点：多种木霉属真菌能与各种微观和宏观的生物有机体建立相互作用。利用这些相互作用,木霉可做为原生种群的入侵物种而用于生物防治。本文通过使用试验菌群为研究模型,利用随机扩增多态性DNA（RAPD）技术和序列特征性扩增区域（SCAR）标记物来监测菌群中哈茨木霉的生长状态。 研究方法：利用随机扩增多态性DNA（RAPD）技术,从16个10聚体引物进行多态性筛选,其中1个引物扩增出对应哈茨木霉的条带。对该条带进行克隆测序,并设计5个20-23聚体引物。成功利用引物对2F2／2R2和2F2／2R3278分别特异性地扩增出哈茨木霉BpTloa菌株278bp和448bp的DNA片段。同时,用这两个引物对14个哈茨木霉菌株和几种不同的真菌菌株进行特异性对照试验,也只成功扩增出哈茨木霉菌株。此外,使用真菌DNA混合物和试验真菌群的DNA为模板,采用实时聚合酶链式反应（PCR）对引物对2F2／2R2进行评估。当仅使用100份SCAR标记物或哈茨木霉仅占整个菌群的0．1％时,仍能检测出哈茨木霉。 重要结论：本研究所建立的SCAR分子标记能有效监测菌群中的哈茨木霉的定殖和生长,具有较高特异性、灵敏度和准确度。     

Effects of concurrent training on interleukin-6, tumour necrosis factor-alpha and C-reactive protein in middle-aged men

The purpose of this study was to evaluate the effects of moderate- to high-intensity resistance and concurrent training on inflammatory biomarkers and functional capacity in sedentary middle-aged healthy men. Participants were selected on a random basis for resistance training (n = 12), concurrent training (n = 11) and a control group (n = 13). They performed three weekly sessions for 16 weeks (resistance training: 10 exercises with 3 × 8-10 repetition maximum; concurrent training: 6 exercises with 3 × 8-10 repetition maximum, followed by 30 minutes of walking or running at 55-85% [Vdot]O(2peak)). Maximal strength was tested in bench press and leg press. The peak oxygen uptake ([Vdot]O(2peak)) was measured by an incremental exercise test. Tumour necrosis factor-α, interleukin-6 and C-reactive protein were determined. The upper- and lower-body maximal strength increase for both resistance (+42.52%; +20.9%, respectively) and concurrent training (+28.35%; +21.5%, respectively) groups (P = 0.0001).[Vdot]O(2peak) increased in concurrent training when comparing pre- and post-training (P = 0.0001; +15.6%). No differences were found in tumour necrosis factor-α and interleukin-6 for both groups after the exercise. C-reactive protein increased in resistance training (P = 0.004). These findings demonstrated that 16 weeks of moderate- to high-intensity training could improve functional capacity, but did not decrease inflammatory biomarkers in middle-aged men.     

One Man's Rubbish … Active Learning Using Old Bottle Tops

This is an activity for younger learners in which the concepts of relative frequency and probability are explored, illustrating how a creative, non‐transmission teaching approach using bottle tops can enable students to develop their understanding in an engaging fashion and at almost no cost.     

The World Bank’s position on early child education in Brazil: a critical assessment of contributions and shortcomings

In 2010, the World Bank published a policy study on early child education (ECE) developments in Brazil, entitled Early Child Education: Making Programs Work for Brazil’s Most Important Generation. Development. This paper analyses the report’s assessment of ECE policy in Brazil as well as the recommendations it provides. A critical analysis of ECE shows that the report’s insistence that financial constraints necessitate a trade-off between coverage and quality privileges the influence and position of the private sector and urges public–private partnerships as a cost-saving strategy. While it commends the Brazilian Government for its commitment to universal access to preschool, it argues for more targeted investment in quality rather than access. This paper argues that the quality-coverage debate should be set aside and overall investment in ECE should be increased. It also argues that issues excluded from the report such as disability, race and rural access to ECE must be considered in the development of sound social policy.     

Eurocentrism and its Effects: A manifesto from Colombia

This manifesto was first made public in Bogotá, Colombia, on 4 January, 2001 with reference to local creativity and self-esteem. It had considerable regional repercussions. The present is a revised and updated version as a contribution to the current debate on Eurocentrism and its effects in the world. We are Colombian exponents of the natural and the social sciences who want to share our concern for certain types of distortions produced when there is not enough attention given to our contacts and scientific exchanges with colleagues from advanced countries. Our points of view are as follows.     

Perceptions of university teachers about teaching and the quality of pedagogy in higher education: a study in Portugal / Percepciones de los profesores universitarios sobre la enseñanza y la calidad de la pedagogía de la educación superior: un estudio realizado en Portugal

This paper draws upon a broader piece of research aiming at investigating the perceptions of university teachers about the quality of pedagogy in higher education and their professional development. Data were collected through questionnaires. In total, 171 faculty members participated in the study. Findings indicate that the participants recognized the importance of quality of pedagogy, and particularly the principles of transparency and intentionality. The most important motives for university teachers to engage in professional development opportunities are emancipatory and pedagogical ones. The participants also stress that in general they feel good as far as their teaching activity is concerned. However, those who revealed greater satisfaction with teaching valued more the quality of pedagogy in general. Also, those who feel good in relation to teaching value more the principles of interaction, democratization and negotiation with the students. Implications of the findings are discussed.     

Recreating blood-brain barrier physiology and structure on chip: A novel neurovascular microfluidic bioreactor

The blood-brain barrier (BBB) is a critical structure that serves as the gatekeeper between the central nervous system and the rest of the body. It is the responsibility of the BBB to facilitate the entry of required nutrients into the brain and to exclude potentially harmful compounds; however, this complex structure has remained difficult to model faithfully in vitro. Accurate in vitro models are necessary for understanding how the BBB forms and functions, as well as for evaluating drug and toxin penetration across the barrier. Many previous models have failed to support all the cell types involved in the BBB formation and/or lacked the flow-created shear forces needed for mature tight junction formation. To address these issues and to help establish a more faithful in vitro model of the BBB, we have designed and fabricated a microfluidic device that is comprised of both a vascular chamber and a brain chamber separated by a porous membrane. This design allows for cell-to-cell communication between endothelial cells, astrocytes, and pericytes and independent perfusion of both compartments separated by the membrane. This NeuroVascular Unit (NVU) represents approximately one-millionth of the human brain, and hence, has sufficient cell mass to support a breadth of analytical measurements. The NVU has been validated with both fluorescein isothiocyanate (FITC)-dextran diffusion and transendothelial electrical resistance. The NVU has enabled in vitro modeling of the BBB using all human cell types and sampling effluent from both sides of the barrier.     

Technology as culture and embodied knowledge

An operational definition for knowledge is presented and, invoking the economic concept of a transformation process, a definition of technology emerges as a static form of knowledge embodied within a functional piece of some material form. The knowledge of a social group, or of the human kind, is then observable, at a certain moment in time, in its technological forms. In this sense, technology is the visible part of its culture. Microeconomic and macroeconomic views, as well as management understanding of what it is and which role technology plays, are also considered and discussed.