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Memory is incorporated into the brain as physicochemical changes to engram cells. These are neuronal populations that form complex neuroanatomical circuits, are modified by experiences to store information, and allow for memory recall. At the molecular level, learning modifies synaptic communication to rewire engram circuits, a mechanism known as synaptic plasticity.
View Article and Find Full Text PDFInfluence of Different Environmental Factors on the Aging of Corn Straw/Polycarbonate (PPC)/Polylactic Acid (PLA) Composite Materials.
ACS Omega
January 2025
School of Materials Science and Engineering, Beihua University, Jilin 132000, China.
This study aims to gain a deeper understanding of the effects of different environmental factors on the mechanical properties, surface morphology, and microstructure of corn straw/polycarbonate/poly(lactic acid) composite materials. Three different aging methods, namely wet heat aging, natural aging, and oxidative thermal aging, were used to investigate the effects of high temperature, humidity, and light on the mechanical properties, surface morphology, and microstructure of the composite materials. The surface morphology, chemical, thermal properties, and crystallization behavior of aged samples were analyzed using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis, and multifunctional X-ray diffraction, respectively.
View Article and Find Full Text PDFTuning Printability and Adhesion of a Silver-Based Ink for High-Performance Strain Gauges Manufactured via Direct Ink Writing.
ACS Omega
January 2025
Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida 32310, United States.
Structural health monitoring (SHM) systems are critical in ensuring the safety of space exploration, as spacecraft and structures can experience detrimental stresses and strains. By deploying conventional strain gauges, SHM systems can promptly detect and assess localized strain behaviors in structures; however, these strain gauges are limited by low sensitivity (gauge factor, GF ∼ 2). This study introduces an approach to printing strain gauges with high sensitivity, while also considering stretchability and long-term durability.
View Article and Find Full Text PDFInduction of DNA damage and growth arrest by citalopram in breast cancer cells mediated via activation of Gadd45a and apoptotic genes.
Ultrastruct Pathol
January 2025
Department of Histochemistry and Cell Biology, Medical Research Institute, Alexandria University, Alexandria, Egypt.
Breast cancer patients experience more severe emotional distress and depression compared to those with other cancers. Selective serotonin reuptake inhibitors (SSRIs), like citalopram, are commonly used to treat depression. However, the link between SSRI use and breast cancer progression is debated.
View Article and Find Full Text PDFUse of 3D Printing Technology to Improve Lead Shield Fabrication for Electron Therapy of the Face.
Pract Radiat Oncol
January 2025
Department of Radiation Oncology, Christiana Care, Helen F. Graham Cancer Center & Research Institute, Newark, Delaware.
Superficial lesions of the face are often treated with an electron beam and surface collimation utilizing a conformal lead shield with an opening around the region of treatment (ROT). To fabricate the lead shield, an imprint of the patient face is needed. Historically, this was achieved using a laborious and time-consuming process that involved a gypsum imprinted model (GIM) of the patient topography.
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