Publications by authors named "V W Greene"
Over the past two decades, electrospinning has emerged as a common technique to produce biomedical scaffolds composed of ultrafine fibers formed from many natural and synthetic polymers. A major advantage of this technique is the ability to produce scaffolds that resemble the native extracellular matrix in physical, chemical, and topological properties. However, scaffolds fabricated via electrospinning are not formed with a controlled architecture and typically do a poor job of directing cell growth into prescribed structures for tissue/organ development.
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- The daffodil plant (Narcissus pseudonarcissus) exhibits a directional tendency to maximize sunlight exposure before flowering, with preferences ranking East, South, West, and North.
- The plant's ability to bend its stem is a phototropic response that is influenced by shadows from nearby objects, ensuring it does not grow towards areas with less light.
- Experiments show that a significant majority of daffodil stems (61.7%) face East, reinforcing their adaptive strategy to seek optimal sunlight in shaded environments.
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- The study explores the challenges of using hydrogels in load-bearing applications due to their toughness limitations, specifically focusing on HEMA-based hydrogels which are cost-effective and FDA approved.
- Different crosslinkers (VM, AM, AHPM) were tested to enhance hydrogel toughness and mechanical properties, with VM leading to improved toughness and Young's modulus suitable for tissue engineering.
- The results indicated that the hydrogels achieved a peak toughness of 519 ± 70 kJ/m3 and demonstrated 80%-100% cell viability, highlighting their potential in biomedical applications, especially in tissue engineering.
A cluster of Salmonella Paratyphi B variant L(+) tartrate(+) infections with indistinguishable pulsed-field gel electrophoresis patterns was detected in October 2015. Interviews initially identified nut butters, kale, kombucha, chia seeds and nutrition bars as common exposures. Epidemiologic, environmental and traceback investigations were conducted.
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- In November 2015, about 40 people from a Thanksgiving lunch in North Carolina reported illness, prompting an investigation by local health officials.
- Researchers quickly created an online survey for attendees to assess symptoms and food consumption, which led to 76% of respondents meeting the illness criteria.
- The study found a significant link between illnesses and the consumption of turkey and stuffing, with those who ate these dishes being more than twice as likely to get sick compared to those who didn't.