Study area is located in the higher folded belt in the Zagros Mountain in the Iraqi Kurdistan. Analyzed geomorphic indices included sixteen sub basins: the stream gradient index (SL), drainage basin asymmetry (AF), hypsometric integral (Hi), Valley floor width-valley height ratio (VF) and mountain front sinuosity (J) is obtained relative of tectonic activity in the study area. These indices abo...

[1] The power law dependencies between channel morphology and river flows, known as at-station hydraulic geometry (HG), have been recently shown to have exponents that systematically vary with scale (contributing area). To explain these empirical trends, a generalized HG model whose parameters are explicit functions of scale was derived by Dodov and Foufoula-Georgiou [2004], based on a statisti...

We investigate the exploration problem of a short-sighted mobile robot moving in an unknown cellular room. To explore a cell, the robot must enter it. Once inside, the robot knows which of the 4 adjacent cells exist and which are boundary edges. The robot starts from a specified cell adjacent to the room’s outer wall; it visits each cell, and returns to the start. Our interest is in a short exp...

The western sand darter Ammocrypta clara, and eastern sand darter Ammocrypta pellucida, are sand-dwelling fishes of conservation concern. Past research has emphasized the importance of studying individual populations of conservation concern, while recent research has revealed the importance of incorporating landscape scale processes that structure habitat mosaics and local populations. We exami...

The nowadays most used analgesic is paracetamol. Its mode of action is not yet elucidated and its adverse effects have been only partly studied. In the present work, using ants as models, we examined the potential effect of a large dose (4g per day) on 22 physiological and ethological traits. It appeared that paracetamol increased the ants’ sinuosity of movement, decreased their orientation abi...

This study focuses on the morphotectonics of Central High Atlas in Morocco through analysis morphotectonic indices recorded by topography, drainage networks, and longitudinal stream profiles. The methods used this work were length-gradient index (SLI), normalized steepness index, area-altitude relations (hypsometric curves), mountain front sinuosity, basin shape ratio, asymmetry factor. aim is ...

This research analyzed the morphological/morphometric parameters of relief and drainage network Formiga River subbasin, southern Minas Gerais State, Brazil. study identified examined influences control mechanisms in development current configurations. The methodology was based on application indices parameters: (1) slope length (Hack's Sl); (2) normalized index (ksn); (3) river hierarchy; (4) d...

Chiang Khong Basin (CKB) is a northeast-southwest active basin in Rai province, northern Thailand. The bounded to the east by numerous fault segments of Mae Ing Fault Zone (MIFZ), where they have triggered several previous earthquakes and vicinities. Although slip MIFZ has some earthquakes, deformation landscape affected tectonic processes mainly unknown. According uniform lithologic climatic c...

The Ikeda, Parker, and Sawai river meandering model is reexamined using a physical approach employing an explicit equation of motion. For periodic river shapes as seen from above, a cross-stream surface elevation gradient creates a velocity shear that is responsible for the decay of small-wavelength meander bends, whereas secondary currents in the plane perpendicular to the downstream direction...