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Graphic Organizers Pedagogy And Retention Skills Of Students With Intellectual Disability: A Sequential Explanatory Mixed Methods Inquiry, Jerrianne Mae Bacarro, Andrea Ellaine Galorport, Rabi Faith Hope Quimco, Melrose Rollon, Althea Joy Sua, Angelito Cabanilla, Venus Cortes Mar 2024

Graphic Organizers Pedagogy And Retention Skills Of Students With Intellectual Disability: A Sequential Explanatory Mixed Methods Inquiry, Jerrianne Mae Bacarro, Andrea Ellaine Galorport, Rabi Faith Hope Quimco, Melrose Rollon, Althea Joy Sua, Angelito Cabanilla, Venus Cortes

CNU Journal of Higher Education

Retention is the capacity to hold information in the mind. It is crucial for learning, especially in transferring knowledge to long-term memory. This study examines the impact of Graphic Organizers (G.Os) on information retention among students with intellectual disabilities (I.D.) at Guadalupe SPED Center in Cebu City, Philippines. Using purposive sampling, ten (10) students with I.D. enrolled in the upper-level SPED center were selected and divided equally into control and experimental groups. A pretest-posttest design, validated lesson plan with G.Os, assessment questionnaires, and semi-structured interviews were employed. Results show significant benefits of graphic organizers, including improved comprehension, enhanced memory retention, …


Modeling The Economic Growth Of The Philippines With Structural Change: A Case Of The Covid-19 Pandemic, Jacque Bon Isaac Aboy, Nelia Ereno, Ian Jay Serra Mar 2024

Modeling The Economic Growth Of The Philippines With Structural Change: A Case Of The Covid-19 Pandemic, Jacque Bon Isaac Aboy, Nelia Ereno, Ian Jay Serra

CNU Journal of Higher Education

The structural change brought about by the COVID-19 pandemic in the behavior of economic growth in the Philippines is not yet fully analyzed and understood. This paper answers whether the pandemic caused a regime switch in the gross domestic product (GDP) of the Philippines, and if it is cointegrated with the Peso-Dollar exchange rate, import, and the Philippine stock market, in the presence of a structural break. The period used is from the 1st quarter of 2012 until the 1st quarter of 2022. An ARDL model is then proposed that describes a linear relationship between the variables. Results from the …


Exploring The Factors That Influence K-12 Teachers’ Use Of Open Educational Resources, Yu-Chun Kuo, Yu-Tung Kuo, Hungwei Tseng Mar 2024

Exploring The Factors That Influence K-12 Teachers’ Use Of Open Educational Resources, Yu-Chun Kuo, Yu-Tung Kuo, Hungwei Tseng

College of Education Departmental Research

The features of open educational resources (OERs) have the potential of enhancing teaching effectiveness and student learning experiences in K-12 education. Encouraging K-12 teachers to use OERs requires an understanding of the factors that have an influence on teachers’ decisions to adopt or use OERs in their teaching. In this regard, this study explored the factors related to how teachers perceived their use of OERs, including the perceived ease of use of OERs, perceived usefulness of OERs, intention to adopt OERs, attitudes, OER self-efficacy, and so on. The relationships of several proposed factors were explored. The participants were teachers from …


Hybrid Deloading Control Strategy In Mmc-Based Wind Energy Conversion Systems For Enhanced Frequency Regulation, Jimiao Zhang, Jie Li Mar 2024

Hybrid Deloading Control Strategy In Mmc-Based Wind Energy Conversion Systems For Enhanced Frequency Regulation, Jimiao Zhang, Jie Li

Henry M. Rowan College of Engineering Departmental Research

The growing integration of renewable energy sources, especially offshore wind (OSW), is introducing frequency stability challenges to electric power grids. This paper presents a novel hybrid deloading control strategy that enables modular multilevel converter (MMC)-based wind energy conversion systems (WECSs) to actively contribute to grid frequency regulation. This research investigates a permanent-magnet synchronous generator (PMSG)-based direct-drive configuration, sourced from the International Energy Agency’s (IEA’s) 15 MW reference turbine model. Specifically, phase-locked loop (PLL)-free grid-forming (GFM) control is employed via the grid-side converter (GSC), and DC-link voltage control is realized through the machine-side converter (MSC), both of which boost the energy …


Research Update - March 2024, Office Of Research Mar 2024

Research Update - March 2024, Office Of Research

Research Update

No abstract provided.


Gnsi Decision Brief: Creating Sun Tsu: Instituting A Master’S Degree In Irregular Warfare, Robert Burrell, John Collision Mar 2024

Gnsi Decision Brief: Creating Sun Tsu: Instituting A Master’S Degree In Irregular Warfare, Robert Burrell, John Collision

GNSI Decision Briefs

In the words of Sun Tsu, arguably the father of irregular warfare, war is like water, and water has no constant form, and there are no constant conditions in war.i Nowhere in the history of U.S. military doctrine has conflict been described in this theoretical and inclusive way. Therefore, it should come as no surprise that the U.S.’s preference for technological solutions, increased firepower, and lethality on the battlefield neglects to account for leveraging irregular and asymmetric forms of conflict to advance its interests and counter its adversaries. The Consortium to Study Irregular Warfare Act of 2021 addressed the gap …


Microclimate, An Important Part Of Ecology And Biogeography, Julia Kemppinen, Jonas J. Lembrechts Mar 2024

Microclimate, An Important Part Of Ecology And Biogeography, Julia Kemppinen, Jonas J. Lembrechts

School of Biological Sciences: Faculty Publications

Brief introduction: What are microclimates and why are they important? Microclimate science has developed into a global discipline. Microclimate science is increasingly used to understand and mitigate climate and biodiversity shifts. Here, we provide an overview of the current status of microclimate ecology and biogeography in terrestrial ecosystems, and where this field is heading next.

Microclimate investigations in ecology and biogeography: We highlight the latest research on interactions between microclimates and organisms, including how microclimates influence individuals, and through them populations, communities and entire ecosystems and their processes. We also briefly discuss recent research on how organisms shape microclimates from …


Extremely Red Galaxies At Z = 5-9 With Miri And Nirspec: Dusty Galaxies Or Obscured Active Galactic Nuclei?, Guillermo Barro, Pablo G. Pérez-González, Dale D. Kocevski, Elizabeth J. Mcgrath, Jonathan R. Trump, Raymond C. Simons, Rachel S. Somerville, L. Y. Aaron Yung, Pablo Arrabal Haro, Hollis B. Akins, Michaela B. Bagley, Nikko J. Cleri, Luca Costantin, Kelcey Davis, Mark Dickinson, Steve L. Finkelstein, Mauro Giavalisco, Carlos Gómez-Guijarro, Nimish P. Hathi, Michaela Hirschmann, Benne W. Holwerda Mar 2024

Extremely Red Galaxies At Z = 5-9 With Miri And Nirspec: Dusty Galaxies Or Obscured Active Galactic Nuclei?, Guillermo Barro, Pablo G. Pérez-González, Dale D. Kocevski, Elizabeth J. Mcgrath, Jonathan R. Trump, Raymond C. Simons, Rachel S. Somerville, L. Y. Aaron Yung, Pablo Arrabal Haro, Hollis B. Akins, Michaela B. Bagley, Nikko J. Cleri, Luca Costantin, Kelcey Davis, Mark Dickinson, Steve L. Finkelstein, Mauro Giavalisco, Carlos Gómez-Guijarro, Nimish P. Hathi, Michaela Hirschmann, Benne W. Holwerda

Pacific Faculty Work

We study a new population of extremely red objects (EROs) recently discovered by the James Webb Space Telescope (JWST) based on their NIRCam colors F277W − F444W > 1.5 mag. We find 37 EROs in the Cosmic Evolution Early Release Science Survey (CEERS) field with F444W < 28 mag and photometric redshifts between 5 < z < 7, with median z = 6.9 − 1.6 + 1.0 . Surprisingly, despite their red long-wavelength colors, these EROs have blue short-wavelength colors (F150W − F200W ∼ 0 mag) indicative of bimodal spectral energy distributions (SEDs) with a red, steep slope in the rest-frame optical, and a blue, flat slope in the rest-frame UV. Moreover, all these EROs are unresolved, point-like sources in all NIRCam bands. We analyze the SEDs of eight of them with MIRI and NIRSpec observations using stellar population models and active galactic nucleus (AGN) templates. We find that dusty galaxies or obscured AGNs provide similarly good SED fits but different stellar properties: massive and dusty, log M ⋆ / M ⊙ ∼ 10 and A V ≳ 3 mag, or low mass and obscured, log M ⋆ / M ⊙ ∼ 7.5 and A V ∼ 0 mag, hosting an obscured quasi-stellar object (QSO). SED modeling does not favor either scenario, but their unresolved sizes are more suggestive of AGNs. If any EROs are confirmed to have log M ⋆ / M ⊙ ≳ 10.5, it would increase the pre-JWST number density at z > 7 by up to a factor ∼60. Similarly, if they are QSOs with luminosities in the L bol > 1045-46 erg s−1 range, their number would exceed that of bright blue QSOs by more than three orders of magnitude. Additional photometry at mid-infrared wavelengths will reveal the true nature of the red continuum emission …


Culinary Medicine: A Nourishing Introduction, Connor Perlin, Jeffrey Y. Wang Mar 2024

Culinary Medicine: A Nourishing Introduction, Connor Perlin, Jeffrey Y. Wang

URGENT Matters

No abstract provided.


Evaluating The Management Trends For Priapism And Assessing The Risk Of Priapism After In-Office Intracavernosal Injections: A Cross-Sectional Analysis, Joon Yau Leong, Zachary J. Prebay, David Ebbott, Michael Li, Paul H. Chung Mar 2024

Evaluating The Management Trends For Priapism And Assessing The Risk Of Priapism After In-Office Intracavernosal Injections: A Cross-Sectional Analysis, Joon Yau Leong, Zachary J. Prebay, David Ebbott, Michael Li, Paul H. Chung

Department of Urology Faculty Papers

We describe the management trends of patients suffering from any priapism and evaluate the risks of developing priapism after intracavernosal injections (ICI) performed in office. We queried TriNetX for two separate male adult cohorts - those presenting with any priapism based on International Classification of Disease code, N48.3 (priapism) and those who underwent ICI in office based on Current Procedural Terminology code, 54235 (injection of corpora cavernosa with pharmacologic agent[s]). We evaluated treatment options for these patients after any priapism and described demographic risks for developing priapism after ICI performed in office. There were 17,545 priapism encounters and 26,104 usages …


Description Of A New Species (Eucypris Dorlionensis N. Sp.) (Ostracoda, Crustacea)From Türkiye And A Cladistic Analysis Of The Genus Eucypris, Fi̇li̇z Batmaz, Mehmet Yavuzatmaca, Okan Külköylüoğlu Mar 2024

Description Of A New Species (Eucypris Dorlionensis N. Sp.) (Ostracoda, Crustacea)From Türkiye And A Cladistic Analysis Of The Genus Eucypris, Fi̇li̇z Batmaz, Mehmet Yavuzatmaca, Okan Külköylüoğlu

Turkish Journal of Zoology

This is the first clustering analysis of the 53 species of the genus Eucypris where we used 28 plesiomorphic and apomorphic character states in the Winclada/NONA program. Accordingly, Eucypris dorlionensis n. sp. was clustered within Group 2, in which the new species was clearly separated from the other species of the genus based on the shape of the carapace, presence of fine hair-like setae on the carapace surface, the position of the maximum height of the carapace, and length ratio of terminal claws of the second antenna. Eucypris dorlionensis n. sp. was collected from a trough in Eskişehir province in …


Envisioning Transition From Open Landscapes To Forested Landscapes In The Routt National Forest, Colorado, United States, Brice B. Hanberry, Jacob M. Seidel Mar 2024

Envisioning Transition From Open Landscapes To Forested Landscapes In The Routt National Forest, Colorado, United States, Brice B. Hanberry, Jacob M. Seidel

Aspen Bibliography

Globally, in remaining wildlands, tree densities and forested cover have increased in grasslands and open forests since European settlement. In the southern Rocky Mountains of Colorado, United States, we determined tree composition and tree cover from historical (years 1875 to 1896) surveys and compared them to current (2002 to 2011) tree composition and current (year 2016) forested land cover for 500,000 ha of the Routt National Forest. Additionally, we examined whether changes in precipitation occurred. Regarding composition, pine (primarily lodgepole pine; Pinus contorta) decreased from 65% to 32% of all trees, with increased subalpine fir (Abies lasiocarpa) …


The Lumberjack, March 06, 2024 Mar 2024

The Lumberjack, March 06, 2024

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.


Modifying Aha Stress Management And Physical Activity Modules For Senior Communities, Madai Molina Apolinar, Kristina Luu, Sarah Allen, Samantha Isabel Pio Argueta, Annalise P. Sanders, Emil Visaya Mar 2024

Modifying Aha Stress Management And Physical Activity Modules For Senior Communities, Madai Molina Apolinar, Kristina Luu, Sarah Allen, Samantha Isabel Pio Argueta, Annalise P. Sanders, Emil Visaya

Nursing Leadership in Community Engagement Projects

Modifying AHA Stress Management and Physical Activity Modules for Senior Communities

This quarter our group was given the opportunity to partner with two organizations to conduct work surrounding blood pressure and heart health education. One of our partners was a senior living organization whose mission is to transform beliefs about affordable housing through supporting communities where seniors and families can thrive. We also collaborated with the American Heart Association (AHA), which seeks to combat cardiovascular disease and stroke for the improvement and overall health of the population.

For this project, we were tasked with simplifying the AHA “Check. Change. Control.” …


Healthy Coping Mechanisms Within The Recovery Setting, Ingrid Erickson, Izzi Hill, Ylliam Umipig, Hallie Hicks, Hanin Ghazal, Hannah Haynes Mar 2024

Healthy Coping Mechanisms Within The Recovery Setting, Ingrid Erickson, Izzi Hill, Ylliam Umipig, Hallie Hicks, Hanin Ghazal, Hannah Haynes

Nursing Leadership in Community Engagement Projects

Healthy Coping Mechanisms Within the Recovery Setting

Introduction

Nineteen percent of the Seattle-Tacoma Metropolitan Statistical Area (MSA) population ages 12 and older are using illicit drugs (Brief, 2012). And twenty-two percent have an excessive alcohol use disorder (Brief, 2012). Six Seattle Pacific University nursing students (the team) were assigned a leadership project at a recovery center in downtown Seattle. The recovery center is a non-profit organization that aims to provide hope, healing, and community to those within the recovery community. Members have experienced anything from homelessness to addiction, trauma, and mental health struggles and the center provides a way to …


Project Study Secondary Teachers’ Perspectives In Supporting English Language Learners, Yushica T. Walker Mar 2024

Project Study Secondary Teachers’ Perspectives In Supporting English Language Learners, Yushica T. Walker

Walden Dissertations and Doctoral Studies

The problem for this study was that an average of 60% of eighth-grade English Language Learners (ELL) in one Virginia county were not meeting reading proficiency based on Virginia Standards of Learning. A basic qualitative design was used to explore teachers' perspectives on their successes, challenges, and the resources they need to teach eighth-grade ELLs in reading. The resulting project was a three-day culturally responsive professional development training for English language (EL) teachers. Krashen's language acquisition theory was the conceptual framework used to explore teachers' perspectives on their successes, challenges, and the resources necessary to teach eighth-grade ELLs. Learning should …


Curriculum And Instructional Strategies To Strengthen A Smoking Cessation Intervention Program, Therese Lynetta Burrell Prehay Mar 2024

Curriculum And Instructional Strategies To Strengthen A Smoking Cessation Intervention Program, Therese Lynetta Burrell Prehay

Walden Dissertations and Doctoral Studies

In a British Overseas territory, a smoking cessation program was implemented in 2014 and had not been evaluated since inception. The problem that was addressed in this study was that despite the implementation of the “I Can Quit” program, it was unknown which curriculum and instructional strategy interventions participants thought were useful in supporting smoking cessation. The purpose of this basic qualitative study was to explore the “I Can Quit” participants’ perspectives on the curriculum and instructional strategies used to support the smoking cessation intervention. With Knowles’s adult learning theory as the conceptual framework, participants’ perspectives on the curriculum and …


Increased Hif-2Α Activity In The Nucleus Pulposus Causes Intervertebral Disc Degeneration In The Aging Mouse Spine, Shira N Johnston, Maria Tsingas, Rahatul Ain, Ruteja A Barve, Makarand Risbud Mar 2024

Increased Hif-2Α Activity In The Nucleus Pulposus Causes Intervertebral Disc Degeneration In The Aging Mouse Spine, Shira N Johnston, Maria Tsingas, Rahatul Ain, Ruteja A Barve, Makarand Risbud

Department of Orthopaedic Surgery Faculty Papers

Hypoxia-inducible factors (HIFs) are essential to the homeostasis of hypoxic tissues. Although HIF-2α, is expressed in nucleus pulposus (NP) cells, consequences of elevated HIF-2 activity on disc health remains unknown. We expressed HIF-2α with proline to alanine substitutions (P405A; P531A) in the Oxygen-dependent degradation domain (HIF-2αdPA) in the NP tissue using an inducible, nucleus pulposus-specific K19CreERT allele to study HIF-2α function in the adult intervertebral disc. Expression of HIF-2α in NP impacted disc morphology, as evident from small but significantly higher scores of degeneration in NP of 24-month-old K19CreERT; HIF-2αdPA (K19-dPA) mice. Noteworthy, comparisons of grades …


The Complexities Of Using Digital Game-Based Learning For Writing Instruction: An Exploratory Multiple-Case Study Of Two Teachers, Sean D. Bowden Mar 2024

The Complexities Of Using Digital Game-Based Learning For Writing Instruction: An Exploratory Multiple-Case Study Of Two Teachers, Sean D. Bowden

Dissertations

Digital game-based learning (DGBL) is an innovative learning approach for engaging and teaching students across various content areas. There is a shortfall in the extant literature on DGBL for writing instruction specifically. The purpose of this exploratory multiple-case study was to gain a greater understanding of (a) how teachers plan and deliver writing instruction using a DGBL approach, (b) how they evaluate the impact DGBL has on students’ writing, and (c) the shared experiences two teachers have with using DGBL for writing in two different contexts. Flow theory, activity theory, and TPACK comprised this study's theoretical foundation.

Two teachers with …


The Parthenon, March 6, 2024, Evan Green, Matthew Schaffer, Sarah Davis, Joseph Dicristofaro, Victoria Ware, Abigail Cutlip, Rafael Alfonso, Scott Price, Baylee Parsons, Emma Gallus, Luke Jeffrey Mar 2024

The Parthenon, March 6, 2024, Evan Green, Matthew Schaffer, Sarah Davis, Joseph Dicristofaro, Victoria Ware, Abigail Cutlip, Rafael Alfonso, Scott Price, Baylee Parsons, Emma Gallus, Luke Jeffrey

The Parthenon

No abstract provided.


The Consequences Of Nba Commissioner Adam Silver Arbitrating The Dispute Between The New York Knicks And The Toronto Raptors, Jane Perov Mar 2024

The Consequences Of Nba Commissioner Adam Silver Arbitrating The Dispute Between The New York Knicks And The Toronto Raptors, Jane Perov

Cardozo Journal of Conflict Resolution (CJCR) Blog

Back in August 2023, the New York Knicks sent a letter addressed to the owner of the Toronto Raptors Larry Tanenbaum claiming the Raptors are engaging in illegal activity involving a former Knicks employee whom they just hired. They claimed that Ikechukwu Azotam, who at the time of his employment with the Knicks was an assistant video coordinator, “had illegally provided the Raptors with more than 3,000 confidential files.” Several days after the letter was sent the Knicks filed a lawsuit in the U.S. Southern District Court of New York against Maple Leaf Sports & Entertainment (Toronto Raptors), Darko Rajakavic, …


After Nil: Law Professor Says Bigger Issues Face College Athletics, Clara Turnage Mar 2024

After Nil: Law Professor Says Bigger Issues Face College Athletics, Clara Turnage

University of Mississippi News

OXFORD, Miss. – The issue of student-athletes being compensated for their name, image and likeness has been in the spotlight lately, but a larger issue is waiting in the shadows, warns University of Mississippi law professor William Berry in a recent article.


March For Women's History, Diane Osman Mar 2024

March For Women's History, Diane Osman

University Libraries Blog Archive

Each year since 1988, the month of March is dedicated to honor and celebrate women’s contributions to American history, culture and society.


Ecological Drivers Of Plasticity And Parental Care In Poison Frogs, Olivia Brooks Mar 2024

Ecological Drivers Of Plasticity And Parental Care In Poison Frogs, Olivia Brooks

Theses and Dissertations

Parents increase their offspring fitness prospects by providing care, but at the cost of lost current or future reproductive opportunities. Parents often rear multiple offspring simultaneously, and because parents cannot supply unlimited care to their offspring, parents benefit from distributing resources non-randomly within a brood. Having access to information that helps inform allocation decisions can be valuable to parents, and parents may use a variety of information types that are either intrinsic or extrinsic to the offspring to help inform these decisions. Here, I explore the types of information that parents use when allocating resources within broods, and I explore …


Looking North: Classroom Engagements Into The Relevance And Context Of A Rapidly Changing Arctic, Elaine Alvey Mar 2024

Looking North: Classroom Engagements Into The Relevance And Context Of A Rapidly Changing Arctic, Elaine Alvey

Faculty and Staff

We need to save the Arctic not because of the polar bears, and not because it is the most beautiful place in the world, but because our very survival depends upon it.—Lewis Gordon Pugh, as quoted in Mead (Citation2022) The Arctic is emerging as an increasingly relevant and rapidly changing region of the world. A changing climate has brought increased attention to the dynamic and strategic nature of the North, but the Arctic has always been a homeland to a variety of distinct cultures and a unique ecosystem. Arctic imaginaries of an untouched and wild North continue to flourish in …


Lc-Ms/Ms Reveals Hordeins Are Enriched In Brewers’ Spent Grain, Mitchell G. Nye-Wood, Michelle L. Colgrave Mar 2024

Lc-Ms/Ms Reveals Hordeins Are Enriched In Brewers’ Spent Grain, Mitchell G. Nye-Wood, Michelle L. Colgrave

Research outputs 2022 to 2026

Barley is commonly used in malting and brewing, and spent grain is repurposed for other foods. Barley contains gluten proteins called hordeins that cause intestinal damage and disease symptoms if eaten by people with celiac disease and related conditions. While the mashing process in brewing can partially hydrolyze immunogenic epitopes in hordeins, the immunogenic epitope load between the starting malt and spent grain has not been investigated. Herein, we quantified hordeins in commercially available spent grain and from matching malt. Liquid chromatography-mass spectrometry (LC-MS) and sandwich and competitive R5 ELISAs were used for quantification, revealing a higher abundance of gluten …


A Rare Occurrence Of Digital Fibromyxoma To The Hallux Distal Phalanx, Heather V. Tran, Nikita Gambhir, Craig J. Verdin, Luis Caporusso, Stephanie N. Campbell Mar 2024

A Rare Occurrence Of Digital Fibromyxoma To The Hallux Distal Phalanx, Heather V. Tran, Nikita Gambhir, Craig J. Verdin, Luis Caporusso, Stephanie N. Campbell

School of Podiatric Medicine Publications

A paucity of literature exists for superficial acral fibromyxoma, which typically affects the acral regions of the hands and feet. Because of its indolent nature and clinical mimicry of other ungual and periungual tumors, delays in diagnosis are common. This report aims to augment our understanding of this pathology and improve recognition for prompt diagnosis, as well as provide an addition to the literature.


A Phenomenological Study On Preschool Educator Experience In Re-Imagining Play And Play-Based Learning During The Covid-19 Pandemic, Ronabeth Keh So Mar 2024

A Phenomenological Study On Preschool Educator Experience In Re-Imagining Play And Play-Based Learning During The Covid-19 Pandemic, Ronabeth Keh So

College of Education Theses and Dissertations

This phenomenological study explores how play-based preschool educators experienced and re-imagined play and play-based learning throughout the Covid-19 pandemic. Semistructured interviews were conducted with six teachers and three administrators from three private Midwest play-based institutions. This study uncovers preschool educators’ experiences of engaging in play-based learning throughout the different phases of the pandemic and delves into the issues and challenges of online learning and the subsequent return to the classroom. Results show that despite pedagogical adjustments and limitations brought about by online learning modalities and pandemic related restrictions, the nature of play remains unchanged and continues to be vital to …


A Mechanochemical Approach To Recycle Thermosets Containing Carbonate And Thiourethane Linkages, Rasoul Rahimzadeh, Yazhe Han, Ica Manas-Zloczower Mar 2024

A Mechanochemical Approach To Recycle Thermosets Containing Carbonate And Thiourethane Linkages, Rasoul Rahimzadeh, Yazhe Han, Ica Manas-Zloczower

Faculty Scholarship

Over the past decades, various industries shifted from traditional materials such as glass and metals to thermoset polymers due to their excellent chemical resistance, thermal stability, reduced weight, and affordability. However, at the end of their life cycle, these highly crosslinked polymers end up as environmental pollutants due to their non-recyclability. To tackle this issue, researchers are exploring vitrimer-type polymers with recyclable qualities, supporting a circular economy and sustainable management of thermoset wastes. This study investigates a new promising method of recycling two commonly used thermosets in commercial applications, poly allyl diglycol carbonate (PADC) and poly thiourethane (PTU), via a …


When And Why Ecological Systems Respond To The Rate Rather Than The Magnitude Of Environmental Changes, Karen C. Abbott Mar 2024

When And Why Ecological Systems Respond To The Rate Rather Than The Magnitude Of Environmental Changes, Karen C. Abbott

Faculty Scholarship

Ecologists and conservation biologists have become quite familiar with the concept of tipping points: abrupt changes in an ecosystem's state that occur after a period of relative stasis. Most of the familiar ecological examples of tipping points occur either because a once-stable state has lost stability, or the system has been subjected to a particularly large perturbation and transitions to an alternative stable state, distinct from the pre-perturbed state. A different class of tipping points, known as rate-induced tipping (or r-tipping) points, are likely present in many ecological communities but remain little known in the field. Rate-induced tipping occurs when …