[1] Steep, rough channels occupy a large fraction of the total channel length in mountainous regions. Most sediment mobilized on hillslopes must pass through these streams before reaching lower-gradient channels. Steep channels have wide grain size distributions that are composed of finer, more mobile sediment and large, rarely mobile grains. The large grains can bear a significant portion of t...

RNF8 links nucleosomal and cytoskeletal ubiquitylation of higher order protein structures Comment on: Chahwan R, et al. Cell Cycle 2013; 12:1000–8; PMID:23442799; http://dx.doi.org/10.4161/cc.23947 Richard Chahwan,* Serge Gravel, Takahiro Matsusaka and Stephen P. Jackson*; The Gurdon Institute; University of Cambridge; Cambridge, UK; Department of Zoology; University of Cambridge; Cambridge, UK...

Municipal solid waste incineration bottom ash was treated with specially designed dry and wet treatment processes, obtaining high quality bottom ash granulate fractions (BGF) suitable for up to 100% replacement of natural gravel in concrete. The wet treatment (using only water for separating and washing) significantly lowers the leaching of e.g. chloride and sulfate, heavy metals (antimony, mol...

Artificial neural networks, ANNs were developed to model the biological oxygen demand (BOD), biochemical oxygen demand (COD), and total suspended solids (TSS) treatment in 3 horizontal subsurface flow (HSSF) constructed wetlands (CWs) located in Samaha village, Nile Delta, Egypt. Gravel, hollow plastic bits and shredded tires pieces were used as different wetland treatment media. Three hundred ...

PURPOSE This article examines whether changes in hearing screening practices are warranted based on the results of the recent series of studies by J. L. Johnson, K. R. White, J. E. Widen, J. S. Gravel, B. R. Vohr, M. James, T. Kennalley, A. B. Maxon, L. Spivak, M. Sullivan-Mahoney, Y. Weirather, and S. Meyer (Johnson, White, Widen, Gravel, James, et al., 2005; Johnson, White, Widen, Gravel, Voh...

The dynamics of river bed evolution are known to be notoriously complex affected by near-bed turbulence, the collective motion of clusters of particles of different sizes, and the formation of bedforms and other large-scale features. In this paper, we present the results of a study aiming to quantify the inherent nonlinearity and complexity in gravel bed dynamics. The data analyzed are bed elev...

Geomorphic and hydraulic processes, which form gravel bars in large lowland rivers, have distinctive characteristics that control the magnitude and spatial patterns of infiltration and exfiltration between rivers and their immediate subsurface environments. We present a bedform-infiltration relation together with a set of field measurements along two reaches of the San Joaquin River, CA to illu...

Reclaimed water from wastewater has become a prominent source option to manage scarcity. This study explores the potential of coconut husk biomass, common waste material in Ghana, as valuable low-cost resource for greywater treatment. Engineered column treatment was applied investigate influence pyrolysis and biochar properties biomass on Coconut pyrolyzed at 600°C characterized using SEM, FTIR...