The improvement in walking speed induced by resistance training is associated with increased muscular strength but not skeletal muscle mass in older women

Objective: The purpose of the present study was to analyze whether improvements in fast walking speed induced by resistance training (RT) are associated with changes in body composition, muscle quality, and muscular strength in older women. Methods: Twenty-three healthy older women (69.6?±?6.4 years, 64.95?±?12.9?kg, 1.55?±?0.07?m, 27.06?±?4.6?kg/m²) performed a RT program for 8 weeks consisting of 8 exercises for the whole body, 3 sets of 10–15 repetitions maximum, 3 times a week. Anthropometric, body composition (fat-free mass [FFM], skeletal muscle mass [SMM], legs lean soft tissue [LLST], fat mass), knee extension muscular strength (KE1RM), muscle quality index (MQI [KE1RM/LLST]), and 10-meter walking test (10-MWT) were performed before and after the intervention. Results: Significant (P?<?.05) changes were observed from pre- to post-training for FFM (+1.6%), MQI (+7.2%), SMM (+2.4%), LLST (+1.8%), KE1RM (+8.6%), fat mass (?1.4%), and time to perform 10-MWT (?3.7%). The percentage change in 10-MWT was significantly associated with percentage change in MQI (r?=??0.46, P?=?.04) and KE1RM (r?=??0.45, P?=?.04), however not associated percentage of changes in SMM (r?=?0.01, P?=?.97), LLST (r?=??0.22, P?=?.33), and body fat (r?=?0.10, P?=?.66). Conclusion: We conclude that the improvement in the 10-MWT after an 8-week RT program is associated with increases in lower limb muscular strength and muscle quality, but not with muscle mass or body fat changes in older women.     

The educational psychologist: Facing a new era

The once firm divisions between regular and special education are now fading. In many regions, the integration into regular classrooms of formerly extruded atypical students has an accepted and sometimes legally determined future. Much greater responsibility has thus fallen upon the shoulders of the classroom teacher, and when the failure of students to learn is attributed to a failure to teach them effectively, the question of professional accountability becomes poignant indeed. So, too, for the educational psychologist. Assessment, tied to placement, is no longer acceptable as a raison d'etre. His/her primary contribution in an era of integration for special education is towards improving the quality of instruction in regular classrooms and the quality of learning. Activities of educational psychologists, including assessment, research dissemination, programs of evaluation, systems analysis, and work with parents are reconstrued in this paper as contributing to better instruction in better classrooms.     

Stress and teachers of the learning disabled,behavior disordered,and educable mentally retarded

This study investigated which factors related to the professional roles of teachers of the learning disabled (LD), behavior disordered (BD), and educable mentally retarded (EMR) are most stressful, and which activities, both personal and professional, are beneficial in guarding against stress. The Special Teacher Response to Environmental Stressors (STRESS) was used to elicit responses from the 135 teachers who participated in the study. The participants rated as highly stressful legal concerns, lack of administrative and peer support, and lack of support services. In particular, teachers of the BD revealed that they were fearful of verbal and physical attacks from their students. The participants rated highly exercise and outdoor programs, confiding in significant others (i.e., wife or husband), and peer support as helpful in guarding against stress.     

What Use is Anatomy in First Opinion Small Animal Veterinary Practice? A Qualitative Study

Despite the uncontested importance of anatomy as one of the foundational aspects of undergraduate veterinary programs, there is still limited information available as to what anatomy knowledge is most important for the graduate veterinarian in their daily clinical work. The aim of this study was therefore to gain a deeper understanding of the role that anatomy plays in first opinion small animal veterinary practice. Using ethnographic methodologies, the authors aimed to collect rich qualitative data to answer the question “How do first opinion veterinarians use anatomy knowledge in their day-to-day clinical practice?” Detailed observations and semi-structured interviews were conducted with five veterinarians working within a single small animal first opinion practice in the United Kingdom. Thematic analysis was undertaken, identifying five main themes: Importance; Uncertainty; Continuous learning; Comparative and dynamic anatomy; and Communication and language. Anatomy was found to be interwoven within all aspects of clinical practice; however, veterinarians were uncertain in their anatomy knowledge. This impacted their confidence and how they carried out their work. Veterinarians described continually learning and refreshing their anatomy knowledge in order to effectively undertake their role, highlighting the importance of teaching information literacy skills within anatomy curricula. An interrelationship between anatomy use, psychomotor, and professional skills was also highlighted. Based on these findings, recommendations were made for veterinary anatomy curriculum development. This study provides an in-depth view within a single site small animal general practice setting: further work is required to assess the transferability of these findings to other areas of veterinary practice.     

Learning to succeed in a flat world: information and communication technologies for a new generation of business students

This article investigates the relationship of learning and its infrastructure using Web 2.0 technologies to facilitate the acquisition of skills needed to succeed in a global economy. We explore the learning phenomenon as a way to bring forward a process of continuous improvement supported by social software. We use a commonly accepted definition of learning to evaluate different learning theories, since it seems that the definition of learning itself is not a major source of difference between learning theories. Their differences are over issues of interpretation, not over definition. The theories reviewed are used in the design of a framework to assess the infrastructure against expectations of skill proficiency using Web 2.0 tools, i.e., wikis, blogs, social bookmarking, tagging, etc. which must emerge as a result of registering in an introduction to business information and communication technologies (ICT) course in a Canadian university. In this course, we use Friedman’s (The world is flat: a brief history of the twenty-first century release 3.0, Picador, New York, 2007) thesis that the “world is flat” to discuss issues of globalization and the role of ICT. Students registered in the course are usually familiar with some of the tools we introduce and use in the course. The students are members of Facebook or MySpace, regularly check YouTube, and use Wikipedia in their studies. These tools are the tools to socialize. In our course, we broaden the students’ horizons and explore the potential business benefits of such tools and empower the students to use Web 2.0 technologies within a business context.     

Efficiency of neutron tomography in visualizing the internal structure of metal artefacts from Mapungubwe museum collection with the aim of conservation

AimEstimating physical stability as well as revealing signs of fabrication in metal artefacts via two complementary nondestructive methods, neutron- and X-ray tomography were the main goals of this study.AbstractTo aid conservation management of metal artefacts improved knowledge of the internal structure and degree of corrosion therein is highly desired. In this study, neutron- and X-ray tomography were chosen as two complementary noninvasive visualization techniques to study internal structure and corrosion of five representative examples of archaeological metal artefacts from the Mapungubwe museum collection. Tomography was performed at the Neutron Radiography (SANRAD) facility of the South African Nuclear Energy Corporation where thermal neutrons as well as complementary X-rays are conveniently available under one roof. Comparative studies revealed neutron tomography to be generally superior to X-ray tomography due to the enhanced penetration properties of neutrons through the metal objects. In this paper the rich capability of neutron tomography as a nondestructive visualization aid for scientific conservation purposes is introduced and supported by results achieved for the five selected real artefacts.     

Structure vs. content in hierarchical corpora

We propose and describe Parameterized filesystem HITS (PFH), a lightweight rearrangement algorithm that performs a re-ranking of existing content-only search results in tree-like hierarchical corpora, such as a filesystem. PFH does this by combining the content analysis of the results with structural analysis of how they are organized. An α parameter is used to vary the structure-content bias, allowing us to observe changes in performance when we place more emphasis on structure or on content. Using real and simulated data, experiments are provided to show that α = 0.8 (i.e, 20% structure and 80% content) can substantially boost Mean Reciprocal Rank while keeping other IR metrics steady. Such an algorithm may be useful for building retrieval systems over hierarchical content such as Desktop Search, technical documents and books.