Rice University Research Repository


The Rice Research Repository (R-3) provides access to research produced at Rice University, including theses and dissertations, journal articles, research center publications, datasets, and academic journals. Managed by Fondren Library, R-3 is indexed by Google and Google Scholar, follows best practices for preservation, and provides DOIs to facilitate citation. Woodson Research Center collections, including Rice Images and Documents and the Task Force on Slavery, Segregation, and Racial Injustice, have moved here.



 

Recent Submissions

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Direct gas fluorination of boron nitrides and compositions including fluorinated boron nitrides
(2024-02-13) Khabashesku, Valery N.; Meiyazhagan, Ashok Kumar; Ajayan, Pulickel M.; Rice University; Baker Hughes Oilfield Operations LLC; United States Patent and Trademark Office
A method for producing fluorinated boron nitride involves heating a reactor chamber, providing boron nitride in the reactor chamber, flowing fluorine and an inert gas through the reactor chamber, and exposing the boron nitride to the flowing gases and the heat. The method may include boron nitride that is exfoliated or non-exfoliated. The fluorinated boron nitride that is produced from this method may have a hexagonal crystal structure or a cubic crystal structure. The method may additionally comprise removing the fluorinated boron nitride from the reactor chamber and mixing it with a surfactant. A suspension may comprise particles of fluorinated boron nitride suspended in a fluid, which may be polar or non-polar, and may additionally include a surfactant. The fluorinated boron nitride may have a hexagonal or a cubic crystal structure. Furthermore, the boron nitride may be exfoliated or non-exfoliated.
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Visible light-activated dyes and methods of use thereof
(2024-02-27) Xiao, Han; Tang, Juan; Rice University; United States Patent and Trademark Office
Disclosed herein are photoactivable fluorophores comprising one or more thiocarbonyl groups as well as conjugates and compositions thereof. The present disclosure also provides methods of preparing photoactivatable fluorophores as well as methods of imaging using the photoactivatable fluorophores, conjugates, and compositions of the present disclosure.
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Emotional modulation of memorability in mnemonic discrimination
(Elsevier, 2024) Morales-Calva, Fernanda; Leal, Stephanie L.
Although elements such as emotion may serve to enhance or impair memory for images, some images are consistently remembered or forgotten by most people, an intrinsic characteristic of images known as memorability. Memorability explains some of the variability in memory performance, however, the underlying mechanisms of memorability remain unclear. It is known that emotional valence can increase the memorability of an experience, but how these two elements interact is still unknown. Hippocampal pattern separation, a computation that orthogonalizes overlapping experiences as distinct from one another, may be a candidate mechanism underlying memorability. However, these two literatures have remained largely separate. To explore the interaction between image memorability and emotion on pattern separation, we examined performance on an emotional mnemonic discrimination task, a putative behavioral correlate of hippocampal pattern separation, by splitting stimuli into memorable and forgettable categories as determined by a convolutional neural network as well as by emotion, lure similarity, and time of testing (immediately and 24-hour delay). We measured target recognition, which is typically used to determine memorability scores, as well as lure discrimination, which taxes hippocampal pattern separation and has not yet been examined within a memorability framework. Here, we show that more memorable images were better remembered across both target recognition and lure discrimination measures. However, for target recognition, this was only true upon immediate testing, not after a 24-hour delay. For lure discrimination, we found that memorability interacts with lure similarity, but depends on the time of testing, where memorability primarily impacts high similarity lure discrimination when tested immediately but impacts low similarity lure discrimination after a 24-hour delay. Furthermore, only lure discrimination showed an interaction between emotion and memorability, in which forgettable neutral images showed better lure discrimination compared to more memorable images. These results suggest that careful consideration is required of what makes an image memorable and may depend on what aspects of the image are more memorable (e.g., gist vs. detail, emotional vs. neutral).
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Structural geology and evolution of the Sierra Madre Oriental during and after the Laramide orogeny at the latitude of Linares, NL., Mexico
(Rice University, 2024) Gray, Gary G.; Farrell, Bill; Blank, David; Earth, Environmental and Planetary Sciences
The folder contains fission track data and an associated model file for 100 samples distributed across eastern Mexico, from the US border to Chiapas. There are also plots of the model output for several times from latest Cretaceous through the Cenozoic.There is one additional spreadsheet that contains fluid inclusion homogenization temperatures from across Mexico.
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Deathlife: Hip Hop and Thanatological Narrations of Blackness
(Duke University Press, 2023) Pinn, Anthony B.
Anthony Pinn examines how hip hop artists challenge white supremacist definitions of Blackness by challenging white distinctions between life and death.