Dynamic process-response model of river channel development

1979 ◽  
Vol 4 (1) ◽  
pp. 59-72 ◽  
Author(s):  
Richard D. Hey
2011 ◽  
Vol 84 (Special Issue Part 2) ◽  
pp. 39-53 ◽  
Author(s):  
Elżbieta Gorczyca ◽  
Kazimierz Krzemień ◽  
Michał Łyp

2014 ◽  
Vol 33 (3) ◽  
pp. 7-15 ◽  
Author(s):  
Zygmunt Babiński ◽  
Michał Habel ◽  
Sergey Chalov

Abstract The aim of this paper is to present the geological structure of the Vistula river valley floor as the modifying factor of fluvial processes and present the development conditions of the contemporary Vistula river channel, which underwent marked transformation due to bed erosion and lateral erosion below the Włocławek reservoir. The analysis of the geological data and the geological survey conducted at the study reach of the Vistula between Włocławek and Toruń resulted in an image of the geological structure of the channel bed along the longitudinal profile


Geografie ◽  
2016 ◽  
Vol 121 (1) ◽  
pp. 99-120 ◽  
Author(s):  
Václav Škarpich ◽  
Zdeněk Kašpárek ◽  
Tomáš Galia ◽  
Jan Hradecký

This paper presents an analysis of both the contemporary and historic development of the geomorphic regime of the Ostravice River channel in the Czech part of the Outer Western Carpathians. The assessment concentrates on the conditions and causes of the channel development in the last 200 years compared with the state of European channels. The original anabranching river pattern has gradually been replaced by a single narrowed channel. At some sections, the original riverbed has lowered by as much as 2.5 m in the second half of the 20th century. These changes were due to strong anthropogenic impacts in the form of river-channel control and construction of dams. A large influence on the contemporary processes was also exerted by changed hydrological conditions and a predisposition of flysch lithology in a channel bedrock to erosion. Currently, the deficit of transportable sedimentary material along with the changed morphology of channels with concentrated water flows are intensifying erosion processes.


2014 ◽  
Vol 24 (1) ◽  
pp. 11-18
Author(s):  
Andrea Bell ◽  
K. Todd Houston

To ensure optimal auditory development for the acquisition of spoken language, children with hearing loss require early diagnosis, effective ongoing audiological management, well fit and maintained hearing technology, and appropriate family-centered early intervention. When these elements are in place, children with hearing loss can achieve developmental and communicative outcomes that are comparable to their hearing peers. However, for these outcomes to occur, clinicians—early interventionists, speech-language pathologists, and pediatric audiologists—must participate in a dynamic process that requires careful monitoring of countless variables that could impact the child's skill acquisition. This paper addresses some of these variables or “red flags,” which often are indicators of both minor and major issues that clinicians may encounter when delivering services to young children with hearing loss and their families.


VASA ◽  
2020 ◽  
Vol 49 (4) ◽  
pp. 333-337 ◽  
Author(s):  
Francisco Leonardo Galastri ◽  
Leonardo Guedes Moreira Valle ◽  
Breno Boueri Affonso ◽  
Marcela Juliano Silva ◽  
Rodrigo Gobbo Garcia ◽  
...  

Summary: COVID-19 is a recently identified illness that is associated with thromboembolic events. We report a case of pulmonary embolism in a patient with COVID-19, treated by catheter directed thrombectomy. A 57 year old patient presented to the emergency center with severe COVID-19 symptoms and developed massive pulmonary embolism. The patient was treated with catheter directed thrombolysis (CDT) and recovered completely. Coagulopathy associated with COVID-19 is present in all severe cases and is a dynamic process. We describe a case of massive/high risk pulmonary embolism, in a patient with COVID-19 receiving full anticoagulation, who was treated by percutaneous intervention. CDT can be an additional therapeutic option in patients with COVID-19 and pulmonary embolism that present with rapid clinical collapse.


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