MARC Record Services: A Comparative Study of Library Practices and Perceptions

The number of journal titles available in digital format to libraries through aggregators and publisher packages has increased, but library resources to catalog these titles have not kept pace with the increases. More libraries are therefore turning to MARC record service vendors to provide batches of electronic serials bibliographic records, either full or brief. This study presents the results of a survey asking library personnel about their experiences with and attitudes toward MARC record services. Although many survey participants expressed satisfaction with the services, they also responded that they would like a greater number of more accurate full bibliographic records. Also, although a majority of libraries use a separate records approach with the services, a significant minority use a single record approach.     

山鹰之歌

~~山鹰之歌@西蒙 @卡风克尔~~     

Early changes in Achilles tendon behaviour in vivo following downhill backwards walking

Downhill backwards walking causes repeated, cyclical loading of the muscle–tendon unit. The effect this type of repeated loading has on the mechanical behaviour of the Achilles tendon is presently unknown. This study aimed to investigate the biomechanical response of the Achilles tendon aponeurosis complex following a downhill backwards walking protocol. Twenty active males (age: 22.3 ± 3.0 years; mass: 74.7 ± 5.6 kg; height: 1.8 ± 0.7 m) performed 60 min of downhill (8.5°), backwards walking on a treadmill at ?0.67 m · s^?1. Data were collected before, immediately post, and 24-, 48- and 168-h post-downhill backwards walking. Achilles tendon aponeurosis elongation, strain and stiffness were measured using ultrasonography. Muscle force decreased immediately post-downhill backward walking (P = 0.019). There were increases in Achilles tendon aponeurosis stiffness at 24-h post-downhill backward walking (307 ± 179.6 N · mm^?1, P = 0.004), and decreases in Achilles tendon aponeurosis strain during maximum voluntary contraction at 24 (3.8 ± 1.7%, P = 0.008) and 48 h (3.9 ± 1.8%, P = 0.002) post. Repeated cyclical loading of downhill backwards walking affects the behaviour of the muscle–tendon unit, most likely by altering muscle compliance, and these changes result in tendon stiffness increases.     

Validity and repeatability of a depth camera-based surface imaging system for thigh volume measurement

Complex anthropometrics such as area and volume, can identify changes in body size and shape that are not detectable with traditional anthropometrics of lengths, breadths, skinfolds and girths. However, taking these complex with manual techniques (tape measurement and water displacement) is often unsuitable. Three-dimensional (3D) surface imaging systems are quick and accurate alternatives to manual techniques but their use is restricted by cost, complexity and limited access. We have developed a novel low-cost, accessible and portable 3D surface imaging system based on consumer depth cameras. The aim of this study was to determine the validity and repeatability of the system in the measurement of thigh volume. The thigh volumes of 36 participants were measured with the depth camera system and a high precision commercially available 3D surface imaging system (3dMD). The depth camera system used within this study is highly repeatable (technical error of measurement (TEM) of <1.0% intra-calibration and ~2.0% inter-calibration) but systematically overestimates (~6%) thigh volume when compared to the 3dMD system. This suggests poor agreement yet a close relationship, which once corrected can yield a usable thigh volume measurement.     

Do conservators dream of electric sheep? Replicas and replication

The paper crosses the boundaries between different genres, drawing on key material and emphasising the philosophical challenges around decision-making and values in relation to replication and replicas. In 1968, Philip K. Dick wrote the book Do Androids Dream of Electric Sheep? which became the inspiration for the 1982 film Bladerunner. The book is set in Los Angeles in a post-apocalyptic future where mankind has left Earth, resulting in androids being created to develop new ‘off-world’ colonies. The book and film create a novel and interesting framework to discuss the subject of replicas and replication within contemporary conservation practice. Key themes are decay promoting replication, original versus replica, creating empathy in replication. The debate focuses on the case study of Naum Gabo's Construction in Space (Crystal) of 1937–39; which was the sculpture replicated in the most recent replication project at Tate, completed in July 2015.