Effects of different warm-up modalities on power output during the high pull

This study compared the effects of six warm-up modalities on peak power output (PPO) during the high-pull exercise. Nine resistance-trained males completed six trials using different warm-ups: high-pull specific (HPS), cycle, whole body vibration (WBV), cycle+HPS, WBV+HPS and a control. Intramuscular temperature (T_m) was increased by 2°C using WBV or cycling. PPO, T_m and electromyography (EMG) were recorded during each trial. Two high-pulls were performed prior to and 3 min after participants completed the warm-up. The greatest increase in PPO occurred with HPS (232.8 ± 89.7 W, P < 0.001); however, this was not different to combined warm-ups (cycle+HPS 158.6 ± 121.1 W; WBV+HPS 177.3 ± 93.3 W, P = 1.00). These modalities increased PPO to a greater extent than those that did not involve HPS (all P < 0.05). HPS took the shortest time to complete, compared to the other conditions (P < 0.05). EMG did not differ from pre to post warm-up or between modalities in any of the muscles investigated. No change in T_m occurred in warm-ups that did not include cycling or WBV. These results suggest that a movement-specific warm-up improves performance more than temperature-related warm-ups. Therefore, mechanisms other than increased muscle temperature and activation may be important for improving short-term PPO.     

Lifelong learning and the new educational order

Many adult educators are familiar with the term dialogue ‐akey concept in education guided by a sense of social justice. In this paper I want to reclaim some of the political agendas which are lost when the term is incorporated into education paradigms which present justice as a product to be distributed to the ‘disadvantaged’. This approach seems to ignore the role ‘advantaged’ groups play in maintaining ‘disadvantage’ (Lankshear, 1991). It also evades the issue of relations of power; relations which remain unchanged through the simple redistribution of resources. In recent times an orientation to competency based teaching has encouraged educators to focus their energy on identifying the learning outcomes one might expect from a course of study and to gear teaching behaviour to meet these outcomes. While learning outcomes are important I believe it is unrealistic to create simplistic links between teaching acts and learning outcomes. My concern is that complex and highly political processes like dialogue are being reduced, at least in some training discourses, to a series of orderly steps. This has two consequences. First, it falsely presents classroom life as a relatively predictable event. Second, these orderly steps imply that educational success lies in efficient and effective delivery techniques which may or may not take account of the political and social context of learning settings. If the techniques do not “work” educators may be left wondering what they did wrong rather than considering the viability of the steps in the first place.     

Are intellectual property rights compatible with Rawlsian principles of justice?

This paper argues that intellectual property rights are incompatible with Rawls’s principles of justice. This conclusion is based upon an analysis of the social stratification that emerges as a result of the patent mechanism which defines a marginalized group and ensure that its members remain alienated from the rights, benefits, and freedoms afforded by the patent product. This stratification is further complicated, so I argue, by the copyright mechanism that restricts and redistributes those rights already distributed by means of the patent mechanism. I argue that the positions of privilege established through both the patent and the copyright mechanisms are positions that do not “allow the most extensive liberty compatible with a like liberty for all.” They do not “benefit the least advantaged.” Nor are they “open to all under conditions of fair equality of opportunity.” In making this argument I critically assess the utilitarian defense of intellectual property rights and find it insufficient to respond to the injustices manifest in our current arrangement for the protection of intellectual property rights.     

Theory of mind and relational complexity

Cognitive complexity and control theory and relational complexity theory attribute developmental changes in theory of mind (TOM) to complexity. In 3 studies, 3-, 4-, and 5-year-olds performed TOM tasks (false belief, appearance-reality), less complex connections (Level 1 perspective-taking) tasks, and transformations tasks (understanding the effects of location changes and colored filters) with content similar to TOM. There were also predictor tasks at binary-relational and ternary-relational complexity levels, with different content. Consistent with complexity theories: (a) connections and transformations were easier and mastered earlier than TOM; (b) predictor tasks accounted for more than 80% of age-related variance in TOM; and (c) ternary-relational items accounted for TOM variance, before and after controlling for age and binary-relational items. Prediction did not require hierarchically structured predictor tasks.     

Factors influencing students' decisions to participate in a short “dissection experience” within a systemic anatomy course

Changes in medical education have affected both curriculum design and delivery. Many medical schools now use integrated curricula and a systemic approach, with reduced hours of anatomy teaching. While learning anatomy via dissection is invaluable in educational, professional, and personal development, it is time intensive and supports a regional approach to learning anatomy; the use of prosections has replaced dissection as the main teaching method in many medical schools. In our graduate‐entry medical degree, we use an integrated curriculum, with prosections to teach anatomy systemically. However, to not exclude dissection completely, and to expose students to its additional and unique benefits, we implemented a short “Dissection Experience” at the beginning of Year 2. Students attended three two‐hour anatomy sessions and participated in dissection of the clinically relevant areas of the cubital fossa, femoral triangle, and infraclavicular region. This activity was voluntary and we retrospectively surveyed all students to ascertain factors influencing their decision of whether to participate in this activity, and to obtain feedback from those students who did participate. The main reasons students did not participate were previous dissection experience and time constraints. The reasons most strongly affecting students' decisions to participate related to experience (lack of previous or new) and new skill. Students' responses as to the most beneficial component of the dissection experience were based around practical skills, anatomical education, the learning process, and the body donors. We report here on the benefits and practicalities of including a short dissection experience in a systemic, prosection‐based anatomy course. Anat Sci Educ 6: 225–231. © 2013 American Association of Anatomists.     

The Economic Impact of Community College Capacity Development in Developing Countries: A Longitudinal Analysis

ABSTRACT

Developing countries have significantly expanded efforts to import more flexible short-cycle institutions based on the United States community college model. The U.S. community college model addresses human capital needs of the labor market in developing countries by increasing access to an affordable education. However, there is limited research on the effects of importing the U.S. community college model on economic growth. This study addressed this gap by examining the effects of importing the U.S. community college model on macroeconomic growth in developing countries that have engaged in partnerships via the Community College for International Development (CCID). A longitudinal analysis of macroeconomic growth of 176 countries from 1995–2014 was conducted. The results provide evidence for the positive economic impact of community college capacity development in developing countries, as well as a comparative advantage of labor for developing countries that have engaged in partnerships. Implications for policy and research are discussed.