Thermoneutral immersion exercise accelerates heart rate recovery: A potential novel training modality

This study compared heart rate recovery (HRR) after incremental maximal exercise performed at the same external power output (P_ext) on dry land ergocycle (DE) vs. immersible ergocycle (IE). Fifteen young healthy participants (30?±?7 years, 13 men and 2 women) performed incremental maximal exercise tests on DE and on IE. The initial P_ext on DE was 25?W and was increased by 25?W/min at a pedalling cadence between 60 and 80?rpm, while during IE immersion at chest level in thermoneutral water (30°C), the initial P_ext deployment was at a cadence of 40?rpm which was increased by 10?rpm until 70?rpm and thereafter by 5?rpm until exhaustion. Gas exchange and heart rate (HR) were measured continuously during exercise and recovery for 5?min. Maximal HR (DE: 176?±?15 vs. IE 169?±?12?bpm) reached by the subjects in the two conditions did not differ (P?>?.05). Parasympathetic reactivation parameters (ΔHR from 10 to 300?s) were compared during the DE and IE HR recovery recordings. During the IE recovery, parasympathetic reactivation in the early phase was more predominant (HRR at Δ10–Δ60?s, P?<?.05), but similar in the late phase (HRR at Δ120–Δ300?s, P?>?.05) when compared to the DE condition. In conclusion, incremental maximal IE exercise at chest level immersion in thermoneutral water accelerates the early phase parasympathetic reactivation compared to DE in healthy young participants.     

Exploring Interactive Writing as an Effective Practice for Increasing Head Start Students’ Alphabet Knowledge Skills

The current study used a pretest–posttest randomized control group design with 73 Head Start students, ages 3–5 years. The researcher served as the interactive writing teacher for the treatment group, rotating to five different classrooms in one Head Start center 3–4 days a week for 13 weeks. Children in the treatment group received a 10–15 min interactive writing lesson each day in small groups within their own classroom settings. Children in the control group received standard literacy instruction in small groups with their own classroom teachers. Child outcome data on upper case, lower case, and letter sound identification were collected before and after the intervention for both groups. Based on the large frequency of zeros on outcomes, zero-inflated Poisson regression analyses were performed. The results of the study showed that children receiving interactive writing identified more lower case and upper case letters at the end of the study relative to children in the control, but no differences were observed on letter sounds. While continued evaluation of the interactive writing strategy is needed in the preschool setting, the evidence from the current study shows encouraging trends in alphabet knowledge skill development as a result of this strategy.     

Expert Teams in the Academic Library: Going Beyond Subject Expertise to Create Scaffolded Instruction

This article explores the way librarians define, leverage, and amplify expertise in a twenty-first century academic library. An expert team comprised of a nursing librarian, online learning librarian, information-literacy librarian, and assessment librarian sorted the learning outcomes from the Information-Literacy Competency Standards for Nursing created by the Health Sciences Interest Group taskforce of the Association of College and Research Libraries (ACRL) by grade-levels. Results found distinguishing experts within a library supports the customization of scaffolded instruction. Additionally, using expert teams in academic libraries supports the larger mission of universities to integrate libraries into teaching and research.     

Between Two Worlds: Australian Publishing on the Horns of an Import Dilemma

This article looks at the consequences of the 1991 amendment to the Australian Copyright Act, which meant that, for the copyright owner or authorised distributor to attain the right to control imports, it had to make the book available in Australia within 30 days of first publication overseas; and, to retain that right, it had to notify the retailer within 7 days of receiving an order whether it could be fulfilled within 90 days, and then in fact do so (. Accessed 28 June 2008). The article discusses the background to that change, what has happened since and what arguments are marshalled by those in favour of the status quo (restrictions that must be qualified for), and those in favour of a completely open market. The arguments used say much about the current preoccupations of those in Australian publishing. The debate around whether booksellers should be free to import copies of a new book from any supplier willing to sell them boils down to four issues: the availability in Australia of books published overseas; the price of books in Australia; the preservation of Australian publishing; and the protection of the rights of copyright holders. Those in favour of the open market believe that it would improve the first two without diminishing the latter two; those who support the status quo, that changing would bring no substantial benefits, and hurt both publishing and the rights of copyright holders. In summary, the reasons for maintaining the status quo are that things work fine as they are; that Australian literature (authors, bookshops, publishers) would suffer if things changed; and that the publisher is entitled to protect its investment through territorial control of copyright. The reasons for going to a completely open market are that only an open market can determine market price; that booksellers are unfairly disadvantaged competing against online sellers, on whom parallel importing restrictions are effectively not imposed; that copyright holders lose their rights when they sell something, and shouldn’t get a secondary chance to protect their investment; there is already a de facto open market, which unfairly restricts those who obey the law; there is a narrow window of opportunity for selling a book, which the current restrictions don’t serve; and the current situation is a poor compromise that doesn’t achieve the benefits of the open market.     

Some Misconceptions about Attribute Sampling Plans

This article explores some common potential misconceptions about attribute sampling plans. Use of the operating characteristic curve easily enables the misconceptions to be overcome.