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  • Threshold of tolerance model : strategy for international travel
  • Australie ; Compagnie aérienne ; Gestion ; Modèle ; Organisation ; Seuil de tolérance ; Stratégie d'entreprise ; Transport ; Transport aérien ; Voyage d'affaires
  • Air transport ; Airline company ; Australia ; Business travel ; Firm strategy ; Management ; Model ; Organization ; Tolerance threshold ; Transport
  • successful international ventures or operating effectively in international markets. From the findings a strategic model was developed called the Threshold of Tolerance Model—which illustrates the potential point where both organisational goals are most
  • L'émergence du sentiment d'insécurité en quartiers défavorisés. Dépassement du seuil de tolérance... aux étrangers ou à la misère ?
  • Chômage ; France ; Insécurité ; Pauvreté ; Quartier dégradé ; Sentiment de peur ; Seuil de tolérance ; Travailleur étranger
  • Danger ; Decayed neighbourhood ; Fear ; Foreign worker ; France ; Poverty ; Tolerance threshold ; Unemployment
  • L'A. essaie de déterminer la provenance du sentiment d'insécurité en dissociant deux causes possibles : un seuil de tolérance aux étrangers qui serait franchi ou une trop forte concentration de la misère. Les quartiers modestes étant socialement
  • Du seuil de tolérance à la mixité sociale : répartition et mise à l'écart des immigrés dans l'agglomération lyonnaise (1970-2000)
  • Catégorisation ; Concentration spatiale ; Discrimination ; Espace urbain ; France ; Immigrés ; Lyon ; Mixité sociale ; Peuplement ; Politique urbaine ; Quartier ; Rhône-Alpes ; Seuil de tolérance ; Travailleur étranger
  • Discrimination ; Foreign worker ; France ; Immigrants ; Lyon ; Neighbourhood ; Rhône-Alpes ; Settlement ; Social mix ; Spatial concentration ; Tolerance threshold ; Urban area ; Urban policy
  • Chômage ; Discrimination sociale ; Espace urbain ; France ; Géographie sociale ; Insécurité ; Minorité ethnique ; Pauvreté ; Perception ; Politique sociale ; Quartier ; Seuil de tolérance
  • Danger ; Ethnic minority ; France ; Neighbourhood ; Perception ; Poverty ; Social discrimination ; Social geography ; Social policy ; Tolerance threshold ; Unemployment ; Urban area
  • Sandstone weathering thresholds in Petra, Jordan
  • Arid area ; Insolation ; Jordan ; Lithology ; Sandstone ; Statistics ; Threshold ; Weathering
  • of thresholds warranted further analysis since this was the first case in which thresholds were recognized in a weathering-related study.
  • A rainfall intensity-duration threshold for landslides in a humid-tropical environment, Puerto Rico
  • The leading cause of landslides in Puerto Rico is intense and/or prolonged rainfall. A rainfall threshold for rainfall-triggered landsliding is delimited by 256 storms that occurred between 1959 and 1991 in the central mountains. A comparison
  • of the Puerto Rico threshold with rainfall data from other humid-tropical regions suggests that the threshold developed for Puerto Rico may be applicable to other similar environments throughout the world.
  • A new statistical model for threshold friction velocity of sand particle motion
  • Aeolian features ; Aeolian transport ; Forecast ; Friction velocity ; Model ; Random process ; Sand ; Threshold ; Wind erosion
  • A theoretical formulation of threshold friction velocity of sand particles is established by considering the equilibrium of moment forces acting on an irregular particle following Bagnold's scheme. Owing to the statistical nature
  • of the microstructure of soil surface, of the particle shape and of positions in the bed, the threshold friction velocity is random. Based on the probability theory of multi-dimension random variable, the probability of the threshold friction velocity, its mean value
  • and standard deviation are calculated. The mean value and standard deviation are fitted as functions of sand particle's diameter. A formula of wet threshold friction velocity is also given.
  • The disruption of Grassy Creek : implications concerning catastrophic events and thresholds
  • Catastrophe ; Channel geometry ; Concept ; Dam ; Fitting ; Illinois ; Longitudinal section ; Mass movement ; Stream ; Threshold ; United States of America
  • Two catastrophic events, occurring simultaneously in the valley of Little Grassy Creek, allow for an examination of the threshold concept in geomorphology. Movement of debris associated with failure and sliding of valley-side material, caused
  • damming and avulsion of Little Cassy Creek. Slope and river disruptions were linked because the effect of one event (slope failure) was the cause of the second event (fluvial avulsion). Criteria needed to employ thresholds to explain geomorphic events
  • are suggested, and a definition of thresholds as time-dependent phenomena is presented as a means of reducing confusion over the use of the threshold concept.
  • Threshold conditions for incipient rilling in Rill erosion. Processes and significance.
  • This paper aims to add more information about critical threshold conditions for incipient rilling with special attention to clay-rich soils. Four types of soil are tested, under simulated rain, with their textures ranging from sandy loam to clay.
  • Developing scenarios of temperature thresholds
  • of maximum temperatures above a selected threshold. The relationships are extrapolated and used to estimate the frequency in the new climatic conditions projected by general circulation models.
  • A threshold-satisfying competitive location model
  • Gravity model ; Location ; Market area ; Multiregional model ; Optimization ; Retail trade ; Store ; Threshold
  • Thresholds of particle entrainment in a poorly sorted sandy gravel-bed river
  • Barcelona ; Carrying capacity ; Fluvial hydrology ; Grain size distribution ; Methodology ; Sediment load ; Sediment transport ; Spain ; Stream ; Threshold
  • This paper presents an analysis of a new data set on threshold conditions for bed material entrainment in the poorly sorted sandy gravel-bed of the Arbúcies River (NE Spain), an interesting example of a perennial to ephemeral transitional
  • Geomorphic thresholds: the concept and its applications
  • Geomorphic thresholds were defined initially as the condition at which there is a significant landform change without a change of external controls such as base level, climate and land use. Landforms evolve to a condition of incipient instability
  • and extrinsic geomorphic thresholds. The threshold concept has practical significance. If the threshold conditions can be recognized, not only will different explanations for some landforms emerge but also the ability to identify incipiently unstable landforms
  • and to predict their change will be of value to land managers and engineers. For example, the development of gullies and fan-head trenches can be explained by the depositional steepening of valley floors and fan-heads to threshold slope. As a consequence, as yet
  • ungullied but potentially unstable areas can be recognized. In addition, channel pattern variations and the conversion of meandering channels to braided ones, and of braided channels to single-thalweg sinuous ones can occur naturally at pattern thresholds
  • . Such changes can also be accomplished artificially, when it is recognized that a channel is near a pattern threshold. Sediment yield variations will be related to these periods of instability. Recognition of this will aid in the explanation of some hydrologic
  • China ; Loess ; Plateau ; Precipitation ; Quantitative analysis ; Soil erosion ; Threshold ; Vegetation
  • Based on data from the Loess Plateau of China, some non-linear relationships between forest cover, mean annual rainfall erosivity and annual precipitation have been found. A threshold has been identified. Furthermore, 2 thresholds are identified
  • in the relationship between rainall erosivity and annual precipitation. Based on these relationships, the non-linear relationship between erosion intensity and annual precipitation is explained. The implication of these thresholds for erosion control on the Loess
  • Stream channel pattern : a threshold model
  • Thresholds of gully erosion in a laterite terrain, Guyana
  • Differentiation of the environment and the thresholds of ecological degradation in the irrigated areas of the dry zone
  • A discriminant analysis approach to regional threshold problems: a progress report
  • Thresholds for channel initiation at road drain outlets
  • Australia ; Forest ; Gully erosion ; New South Wales ; Precipitation ; Regression analysis ; Road ; Slope gradient ; Soil erosion ; Threshold ; Watershed
  • In this study the validity and usefulness of channel initiation thresholds for road runoff management has been evaluated using field data from 3 catchments in south-east Australia. Logistic regression using road area and slope gradient shows
  • that both variables contribute significantly to channel initiation in the Albert and Tyers River catchments, while for the Sandy Creek catchment only slope gradient is significant at the 0.05 level. The slope-area thresholds are still considered useful
  • Thresholds for morphological changes on an exposed sandy beach as a function of wave height
  • Algarve ; Beach ; Beach profile ; Coastal dynamics ; Coastal environment ; Faro ; Portugal ; Sand ; Threshold ; Wave
  • and vertical profile variations and to define wave thresholds for important morphological changes. Results show that the active zone of the profile lies between 5 m above and 10.4 m below mean sea level. Based on the pattern of vertical variability, the AA
  • . divided the profile into 4 cross-shore sectors and calculated thresholds for significant wave height generating important morphological changes in each sector.