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Rock glaciers are one of the most representative elements of mountain permafrost. Their study can contribute to modelling climate change and its effect on natural and anthropogenic environments. Therefore, it is crucial to understand the evolution and quantify the changes in these periglacial landforms at a global level. This study aims to present the monitoring work carried out on the Pyrenean rock glacier of La Paúl (42°39′40″N, 0°26′34″E) from 2013 to 2020, employing in situ geomatics techniques to determine the landform surface kinematics accurately. For this purpose, global navigation satellite systems (GNSS), terrestrial laser scanners (TLS), and unmanned aerial vehicles (UAV) photogrammetry techniques were used simultaneously to evaluate their compatibility in quantifying displacements. Based on 2D and 3D analyses, the results demonstrate the high surface activity of the rock glacier, with mean variations reaching 36 cm/year (GNSS) and a distribution of deformations that, although intensified on its western side, are present on the entire surface of La Paúl. This study uses state-of-the-art geomatics techniques to present dependable and updated quantitative data on a periglacial landform's recent development in under-researched areas, such as the Pyrenean temperate high mountain. [ABSTRACT FROM AUTHOR]

A culturally appropriate program with a functional approach was developed to train related services assistants (RSAs) in U.S. Pacific jurisdictions. RSAs support students with severe disabilities to achieve individualized-education-program objectives. Evaluation revealed positive impacts for disabled students served by 19 trainees, but newly trained RSAs were underutilized by schools. Implications for similar rural U.S. programs are discussed. (TD)

During the Little Ice Age (LIA), Corral del Veleta (Sierra Nevada) housed a small glacier of which relict glacial ice and permafrost still remain under packets of ice blocks. Currently, it is considered the southernmost rock glacier in Europe. The analysis and results of monitoring carried out on this rock glacier reveal it to be in an accelerated process of immobilization and that the relict glacial ice blocks and permafrost on which it lies are in a continual process of degradation. The rock glacier was monitored from 2001 to 2019 using diverse geomatic techniques, to which geophysical and thermal techniques were added. The results obtained during the observation period shed light on the dynamic of the rock glacier (morpho-topographic movements and deformations) as well as the physical state of the underlying frozen bodies (volumetric reduction and spatial distribution). The changes observed are related to variations in the dominant high-mountain climate of Sierra Nevada, particularly since the end of the 20th century, the general tendencies of which are increasing temperatures, decreasing annual snowfall, and a shorter duration of snow on the ground. [ABSTRACT FROM AUTHOR]

Cementitious materials have traditionally not been economically viable for most landfill containment systems. Conventional liners have been made with clay and high-density polyethylene membranes, supporting packed aggregate layers. This paper describes an alternative technology in which low-cost concrete liners may be constructed, making use of materials, which are considered to be wastes by their primary producers. Many materials that have the potential for use either as binder or as aggregate materials for concrete currently form part of the United Kingdom landfill inventory. Although unattractive for use as structural concrete, they offer considerable utility for landfill liner applications. Recent increases in disposal costs including the introduction of the landfill tax have, however, made low cost low strength mixes a financially attractive option as a barrier for landfill leachate containment. In this paper the required properties of cementitious mixes for this purpose are discussed. The results of an extensive investigation into potential mixes using various mineral wastes are presented and the measured properties are compared with those, which are required. All of the mixes, which have been investigated, contain large amounts of secondary materials. If these materials were treated as wastes their disposal costs would be high, so the mixes may be designated 'negative cost mixes.' The results indicate that some of these mixes are well suited to this application. DOI: 10.1061/(ASCE)0899-1561(2004)16:5(477) CE Database subject headings: Cements; Barrier design; Industrial wastes; Ashes; Slag; Permeability; Landfills; Leachates.

An experiment was conducted show that moderate exercise at energy balance does not affect 24-hr leucine oxidation or nitrogen retention in healthy men. A continuous 24-h intravenous [I-13C]leucine/[15N] lurea tracer study in eight healthy adult men was carried out. Their diet supplied 1 g protein-kg-1.day-1 and exercise was for 90 min during the 12-hr fast and 12-hr fed periods of the day. The diet and exercise regimen were adapted for six days and tests were carried out on the seventh day. Results show that moderate exercise does not affect whole body leucine kinetics.

Relatively little is known about the influence of age on energy regulation during energy imbalance. We compared the effects of overfeeding on changes in energy expenditure, substrate oxidation, and energy deposition between young men (age 23.7 [+ or -] 1.1 [SEM] years) and older men(age70.0 [+ or -] 7.0) of normal body weight who were leading unrestricted lives. Changes in total energy expenditure, resting energy expenditure (REE), the thermic effect of feeding (TEF), respiratory quotient(RQ), and body energy content were determined in response to overeating by 4.09 [+ or -] 0.07 Megajoule (MJ)/day for 21 days in 16 healthy subjects consuming a typical diet. After excluding data from one young subject with unusual results and adjusting for individual differences in excess energy intake, there was a tendency towards a smaller increase in REE in older men compared to the young men (p = .07) which was accounted for by their lower fat-free mass (p = .016). There was also a significantly smaller increase in resting energy expenditure averaged over fasting and fed states (i.e, REE [+ or -] TEF) with overfeeding in order men than in young men (p < .01). Combined, these smaller increases in energy expenditure with overfeeding in the older subjects averaged an estimated 365 kilojoule (kj)/day (8.9% of the excess energy intake) (p