The winters of 2017/18 and 2018/19 saw unprecedented sea ice minima in the Bering Chukchi Seas. Kotzebue Sound, located southeastern corner Sea, remained largely ice-free throughout winter a stark departure from both recorded history Indigenous oral history. only that persisted was landfast most this occupied small Sound near outflow Noatak Kobuk Rivers. We present oceanographic atmospheric tim...

Hydrological information is the basis for conducting water balance studies in any region, and surface runoff one of most important hydrological parameters difficult process estimation prediction. This study aims to verification MIKE 11-NAM Model modeling using artificial neural network (ANN), fuzzy inference system (FIS), autoregressive integrated moving average (ARIMA) methods at Al-Jawadiyah ...

Considering the relevant role played by the hydrological regime on the structure and functioning of floodplains, this study aims at characterizing different types of aquatic environments according to periphyton biomass and evaluating the influence of the fluviometric levels of the Paraná River and other forcing functions upon the periphytic community. Periphyton (chlorophyll a) was analyzed in ...

MORENO, AUGUSTO H., ALBERT R. BURCHELL, RIENTS VAN DER WOUDE, AND JEAN H. BURKE. ResfGatory regulation of splanchnic and systemic venous return. Am. J. Physiol. 2 13(2) : 455-465. ‘967* -This report presents measurements of respiratory changes in instantaneous blood flow and pressure in closed-chest dogs under anesthesia. Sites of measurements included thoracic and abdominal venae cavae, portal...

To evaluate controlled pressure coronary artery perfusion fixation of hearts as a means of obtaining meaningful cardiac measurements at autopsy, left ventricular (LV) autopsy measurements were correlated with in vivo end-diastolic (D) and end-systolic (S) angiographic (angio) values from biplane cineangiograms in the same patients. Mitral (MV) and aortic valve (AV) circumferences, LV equatorial...

We report a patient with profound hypovolemia who developed dynamic left ventricular outflow tract obstruction and severe mitral regurgitation. Both the outflow tract obstruction and mitral regurgitation resolved with volume replacement. Unlike previous reports of dynamic left ventricular outflow obstruction and mitral regurgitation, the degree of mitral regurgitation was severe. Possible mecha...

Accessory mitral valve tissue, a rare cause of left ventricular outflow tract obstruction, can be difficult to diagnose preoperatively and confusing even at surgery. The reported case illustrates how preoperative evaluation can be made using two-dimensional echocardiography combined with Doppler flow analysis. The intraoperative technique for removing the accessory tissue without causing damage...

The problems of land degradation and soil loss are among the major problems of watersheds in Iran. For erosion andsediment estimation one can use statistical and empirical methods. For doing this, land unit map and the map of effectivefactors should be prepared. For erosion and sediment estimation one can use statistical and empirical methods. However,these empirical methods are usually time co...