Portion size affects food selection in an immersive virtual reality buffet and is related to measured intake in laboratory meals varying in portion size.

A crucial step for validating the utility of an immersive virtual reality (iVR) buffet to study eating behavior is to determine whether variations in food characteristics such as portion size (PS) are relevant predictors of food selection in an iVR buffet. We tested whether manipulating PS in an iVR buffet affects the weight of food selected, and whether this response to PS is similar to participants' measured intake when PS varies at laboratory meals. In a randomized crossover design, 91 adults (18-71 y; 64 females; BMI = 25.

Validation of a Virtual Reality Buffet environment to assess food selection processes among emerging adults.

Emerging adulthood is a critical developmental period for examining food- and eating-related behaviors as long-term weight-related behavioral patterns are established. Virtual reality (VR) technology is a promising tool for basic and applied research on eating and food-related processes. Thus, the present study tested the validity and user perceptions of a highly immersive and realistic VR food buffet by: (1) comparing participants' food selections made in the VR buffet and a real-world (RW) food buffet cafeteria one-week apart, and (2) assessing participants' rated perceptions of their VR experience (0-100 scale).

Factors Behind Decline of Venovenous Extracorporeal Membrane Oxygenation to Support Neonatal Respiratory Failure.

Objectives: Neonates with respiratory failure are ideally supported with venovenous rather than venoarterial extracorporeal membrane oxygenation due to the reduced rate of neurologic complications. However, the proportion of neonates supported with venovenous extracorporeal membrane oxygenation is declining. We aimed to explore the factors behind this decline.

Nephrotoxicity and Kidney Transport Assessment on 3D Perfused Proximal Tubules.

Proximal tubules in the kidney play a crucial role in reabsorbing and eliminating substrates from the body into the urine, leading to high local concentrations of xenobiotics. This makes the proximal tubule a major target for drug toxicity that needs to be evaluated during the drug development process. Here, we describe an advanced in vitro model consisting of fully polarized renal proximal tubular epithelial cells cultured in a microfluidic system.

Iron-Sulfur Clusters with SiMe(2)-Bridged Cyclopentadienyl Ligands: [Me(2)Si(eta(5)-C(5)H(4))(2)](2)Fe(5)S(12), [Me(2)Si(eta(5)-C(5)H(4))(2)](2)Fe(4)S(6), and [Me(2)Si(eta(5)-C(5)H(4))(2)](2)Fe(4)S(6)(CO).

The synthesis and characterization of iron-sulfur clusters stabilized by dimethylsilyl-bridged cyclopentadienyl groups are reported. The thermal reaction of Me(2)Si(eta(5)-C(5)H(4))(2)Fe(2)(CO)(4) (1) with S(8) yields the tetranuclear cubane-type cluster compound [Me(2)Si(eta(5)-C(5)H(4))(2)](2)Fe(4)S(6) (4) and the pentanuclear cluster compound [Me(2)Si(eta(5)-C(5)H(4))(2)](2)Fe(5)S(12) (3) in high yields. The photochemical reaction of 1 with S(8) yields the tetranuclear cluster compound [Me(2)Si(eta(5)-C(5)H(4))(2)](2)Fe(4)S(6)(CO) (5), which contains one residual terminal carbonyl.