3,762 research outputs found
Susceptibility and Triggers for Debris Flows: Emergence, Loading, Release and Entrainment
No full textCultural humility: from power imbalance to mutuality and intentional respect; promoting culturally relevant occupation-focused client-centred practice
No full textCultural humility is a stance towards understanding culture. It requires a commitment to lifelong learning. It is a conscious self-reflection on one’s own assumptions and practices. As a practitioner you can take comfort with not knowing, and recognition of the power and privilege imbalance that exists between clients and health professionals (Hammell, 2013). Presented by Michelle Perryman, MSc, HCPC, University of Cumbria, Carlise, United Kingdom. Additional speaker: Virginia Stoffel, PhD, OT, FAOTA, University of Wisconsin-Milwaukee, Milwaukee, WI. Contributing Author: Karen Morris, PhD, MSc, PgD, PgCLT (HE) BScOT, SFHEA, HCPC registered
Lake sediments as archives of recurrence rates and intensities of past flood events
No full textPalaeoflood hydrology is an expanding field as the damage potential of flood and flood-related processes are increasing with the population density and the value of the infrastructure. Assessing the risk of these hazards in mountainous terrain requires knowledge about the frequency and severness of such events in the past. A wide range of methods is employed using diverse biologic, geomorphic or geologic evidences to track past flood events. Impact of floods are studied and dated on alluvial fans and cones using for example the growth disturbance of trees (Stoffel and Bollschweiler 2008; Schneuwly-Bollschweiler and Stoffel 2012: this volume) or stratigraphic layers deposited by debris flows, allowing to reconstruct past flood frequencies (Bardou et~al. 2003). Further downstream, the classical approach of palaeoflood hydrology (Kochel and Baker 1982) utilizes geomorphic indicators such as overbank sediments, silt lines and erosion features of floods along a river (e.g. Benito and Thorndycraft 2005). Fine-grained sediment settles out of the river suspension in eddies or backwater areas, where the flow velocity of the river is reduced. Records of these deposits at different elevations across a river’s profile can be used to assess the discharge of the past floods. This approach of palaeoflood hydrology studies was successfully applied in several river catchments (e.g. Ely et al. 1993; Macklin and Lewin 2003; O’Connor et al. 1994; Sheffer et al. 2003; Thorndycraft et al. 2005; Thorndycraft and Benito 2006). All these different reconstruction methods have their own advantages and disadvantages, but often these studies have a limited time coverage and the records are potentially incomplete due to lateral limits of depositional areas and due to the erosional power of fluvial processes that remove previously deposited flood witnesses. Here, we present a method that follows the sediment particle transported by a flood event to its final sink: the lacustrine basin
Geomorphic coupling between hillslopes and channels in the Swiss Alps
No full textThe coupling relationships between hillslope and channel network are fundamental for the understanding of mountainous landscapes' evolution. Here, we applied dendrogeomorphic methods to identify the hillslope–channel relationship and the sediment transfer dynamics within an alpine catchment, at the highest possible resolution. The Schimbrig catchment is located in the central Swiss Alps and can be divided into two distinct geomorphic sectors. To the east, the Schimbrig earth flow is the largest sediment source of the basin, while to the west, the Rossloch channel network is affected by numerous shallow landslides responsible for the supply of sediment from hillslopes to channels. To understand the connectivity between hillslopes and channels and between sources and sink, trees were sampled along the main Rossloch stream, on the Schimbrig earth flow and on the Rossloch depositional area. Geomorphic observations and dendrogeomophic results indicate different mechanisms of sediment production, transfer and deposition between upper and lower segments of the channel network. In the source areas (upper part of the Rossloch channel system), sediment is delivered to the channel network through slow movements of the ground, typical of earth flow, shallow landslides and soil creep. Contrariwise, in the depositional area (lower part of the channel network), the mechanisms of sediment transfer are mainly due to torrential activity, floods and debris flows. Tree analysis allowed the reconstruction of periods of high activity during the last century for the entire catchment. The collected dataset presents a very high temporal resolution but we encountered some limitations in establishing the source-to-sink connectivity at the catchment-wide scale. Despite these uncertainties, for decennial timescales the results suggest a direct coupling between hillslopes and neighbouring channels in the Rossloch channel network, and a de-coupling between sediment sources and sink farther downstream, with connections possible only during extraordinary events
Black Fashion Designers Symposium: June Ambrose in conversation with Carly Cushnie and Michelle Ochs
No full textJune Ambrose in conversation with Carly Cushnie and Michelle Ochs at The Museum at FIT's annual fashion symposium, Black Fashion Designers, held on Monday, February 6, 2017. The one-day symposium featured talks by designers, models, journalists, and scholars on African diasporic culture and fashion.June Ambrose is a celebrity stylist and designer whose clients include Sean Combs, Jay Z, Alicia Keys, and Gabrielle Union. She is author of the book Effortless Style.Carly Cushnie and Michelle Ochs founded their brand Cushnie et Ochs in 2008, creating collections that juxtapose bold sensuality with minimalist sophistication
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