This paper presents a lumped-parameter model that can reproduce blood volume response to fluid infusion. The model represents the fluid shift between the intravascular and interstitial compartments as the output of a hypothetical feedback controller that regulates the ratio between the volume changes in the intravascular and interstitial fluid at a target value (called "target volume ratio"). T...

BACKGROUND Abdominoplasty is one of the most commonly performed cosmetic operative procedures. Few large studies have examined outcomes of cosmetic abdominoplasty in a community setting. The authors explored postoperative outcome and the preoperative and intraoperative factors that may contribute to these complications. METHODS A retrospective review of consecutive patients undergoing abdomin...

Ocular and vision changes known as visual impairment intracranial pressure (VIIP) syndrome have been reported in nearly two thirds of long-duration mission International Space Station (ISS) astronauts. These changes are currently attributed to cephalad vascular fluid shift induced by exposure to microgravity. This study assesses ocular shape and CSF volume changes related to spaceflight to dete...

Fluid shifts are commonplace in chronic hemodialysis patients during the intra- and interdialytic periods. In this study, we evaluated fluid shifts of body compartments using both bioimpedance spectroscopy and blood volume monitoring from the start to the end of hemodialysis. 24 stable hemodialysis patients were included on the study. Relative change of blood volume was progressively reduced fr...

Abstract Introduction Heavy vehicle drivers (HVDs) frequently experience reduced sleep due to travelling long distances under non-standard work hours. Short in HVDs can increase risk of motor crashes and falling asleep while driving. This study sought examine the influence break duration between shifts, onset time, prior shift on HVDs’ total time (TST) consecutive interaction time. Methods Twen...

A pancreatoduodenectomy involves the removal of a tumor from the head of the pancreas. It is a technically difficult procedure requiring experienced anesthesia and surgical teams. The addition of a portal vein reconstruction increases the complexity of the case. A pancreatoduodenectomy is rarely performed on pediatric patients. Although reports of pediatric pancreatoduodenectomies exist in the ...

UNLABELLED Acetated Ringer's solution is a slightly hypotonic infusion fluid (osmolality 270 mosmol/kg) that has inspired the belief that the fluid causes a shift of water volume to the intracellular space. We assessed the role of the kidney in modifying this volume shift by infusing 25 mL/kg of Ringer's acetate solution (mean, 1565 mL) over a time period of 15, 30, 45, and 80 min on different ...

Shifts in property markets are closely tied to changes investment actors’ relations, shaped by wider economic and regulatory processes. However, the existing literature generally neglects role of behaviour agency within market shifts, how shifts affect cities. In response, we establish a framework that systematically unpacks role, characteristics investors urban development. We consider as modi...

Deformations of the structure constants for a class of associative noncommutative algebras generated by Deformation Driving Algebras (DDA’s) are defined and studied. These deformations are governed by the Central System (CS). Such a CS is studied for the case of DDA being the algebra of shifts. Concrete examples of deformations for the three-dimensional algebra governed by discrete and mixed co...

Use of o-phenanthroline as a reagent for determination of sialic acids was proposed by a previous investigator. This method was based on an increase in absorbance at 307 nm that occurred when solutions of o-phenanthroline and various sialic acids were mixed. It was postulated that the increased absorbance was a result of formation of specific complexes. Using N-acetylneuraminic acid, we found n...