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K-Band Rotational Spectroscopy of Succinimide and N-Chlorosuccinimide.
J Phys Chem A
November 2024
Department of Chemistry, University of California, Davis, Davis, California 95616, United States.
Succinimide and its derivatives are cyclic five-membered rings that appear in a variety of natural products and are widely used in organic synthesis. From a structural standpoint, succinimide contains an NH group in the ring which interacts with two adjacent carbonyl groups, pushing the ring structure toward planarity at the expense of increasing ring strain and eclipsing interactions among the out-of-plane hydrogen atoms in the two CH groups. Previous quantum chemical calculations at different levels of theory have predicted both a nonplanar structure and a planar structure, the latter of which is the most consistent with gas-phase electron diffraction measurements.
View Article and Find Full Text PDFXylitol production from passion fruit peel hydrolysate: Optimization of hydrolysis and fermentation processes.
Bioresour Technol
December 2024
Federal University of Ceará, Department of Food Engineering, Center for Agricultural Sciences, Fortaleza, CE 60020-181, Brazil. Electronic address:
The passion fruit peel (PFP) has a high cellulose and hemicellulose content, which can be used to produce fermentable sugars. In this context, this study aims to optimize the release of xylose and the production of xylitol from PFP. The optimized conditions were 0.
View Article and Find Full Text PDFAutomated driving experiences, attention, and intentions following extensive on-road usage of a level 2 automation vehicle.
J Safety Res
September 2024
The Center for the Prevention of Distracted Driving, University of Utah, United States.
Introduction: An on-road study was conducted to examine the effects of level 2 automation on the stressfulness and enjoyment of driving and driving attention following prolonged usage. The study also examined the changes in the automated driving experience and attention over time as well as important predictors such as pre-driving trust in technology and attitudes toward automated systems.
Method: Motorists who had never used automated systems drove a level 2 automation vehicle for a 6-8 week period.
Overview of Unilateral and Bilateral Pediatric Facial Paralysis: Workup, Treatment, and Frontiers.
Facial Plast Surg
August 2024
Division of Plastic Surgery, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, Indiana.
Pediatric facial nerve paralysis can present significant challenges based on its various etiologies, unique approach to treatment options, and overall outcomes. It can impact both the child and parent when regarding function, appearance, and psychosocial implications. The etiology of facial nerve palsy can include congenital, traumatic, iatrogenic, and idiopathic causes.
View Article and Find Full Text PDFQuantitative assessment of morphological changes in lipid droplets and lipid-mito interactions with aging in brown adipose.
J Cell Physiol
September 2024
Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA.
The physical characteristics of brown adipose tissue (BAT) are defined by the presence of multilocular lipid droplets (LDs) within the brown adipocytes and a high abundance of iron-containing mitochondria, which give it its characteristic color. Normal mitochondrial function is, in part, regulated by organelle-to-organelle contacts. For example, the contact sites that mediate mitochondria-LD interactions are thought to have various physiological roles, such as the synthesis and metabolism of lipids.
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