A 64-year-old white woman presented with cholestatic jaundice, weight loss and a solid lesion in the pancreas head. At multislice computed tomography, a superior mesenteric vein (SMV) and one of it tributaries showed signs of tumor infiltration. At surgery, a venous occlusion test applied to the infiltrated tributary of the SMV showed immediate venous congestion in two-thirds of the distal smal...

Arctic tundra wetlands may be an important source of dissolved organic carbon (DOC) in rivers and the Ocean under global warming. We investigated stable water isotopes DOC concentration wetlands, tributaries, mainstream at lower reaches Indigirka River northeastern Siberia during summers 2010–2014 to assess complex hydrology role as sources riverine DOC. The had higher values δ 18 O than tribut...

Water flow forecasts are an essential information for energy production, management and hydropower control. Advanced actions to optimize electricity production can be taken based on predicted information. This work proposes ensemble strategy using recurrent neural networks generate a forecast of water at Jirau Hydroelectric Power Plant (HPP), installed the Madeira River in Brazil. The consists ...

Abstract Purpose Lake Victoria has been increasingly silting over the past decades, impacting water quality and loss of biodiversity. Sediment control strategies require information on relative absolute contributions sediment from different sources. However, to date, there is no continuous monitoring flux or in any tributaries, prohibiting an assessment scale problem. The aim this study was tra...

Chronic vein insufficiency (CVI) is a disease which, when it develops, leads to varicose veins of the lower limbs. As approximately 25% to 50% of people suffer from it, it should be recognised as a public disease. The treatment of chronic vein insufficiency is based on a surgical approach. The aim of the operation is to remove (strip) the insufficient major saphenous vein (MSV), the main cause ...

CT scans in four cases of chronic superior vena cava or left brachiocephalic vein obstruction demonstrate a systemic-to-cardiac collateral venous pathway through anastomoses between the pericardial branches of systemic veins and the presumed adventitial veins of the ascending aorta and pulmonary trunk. These adventitial veins then drain into tributaries of the anterior cardiac veins or ventricu...

Misty MacDuffee sampling chinook and coho fry in a tributary of the Ecstall River. At 85,000 hectares, the Ecstall is the largest unlogged watershed on the North coast. It supports nine species of salmonids which spawn up to 96 km upstream and in more than one dozen of the watershed's tributaries and lakes.

Arsenic released by bottom sediments was determined by experiments in which the sediments were artificially re-suspended using a particle entrainment simulator (PES) to simulate river conditions. Sediment cores were collected from various tributaries to drinking water reservoirs in Connecticut spiked with arsenic, and run in the PES at simulated bed-flow shear stresses from 0.0 to 0.6 N/m(2). U...

The San Joaquin River (SJR) in the Central Valley of California has been designated an impaired waterbody based on its loss of fisheries-related beneficial uses and the river is now subject to regulation under total maximum daily load (TMDL) rules. For impaired waterbodies, numeric standards alone may not be sufficient to establish remediation priorities and priorities must be established by co...