28 research outputs found
Information Literacy Reimagined. Deep Learning Practice
UNESCO 2030 (UNESCO, 2015) sustainable development goal 4 highlights the need for inclusive educational practices in order to dismantle the present exclusionary practices in education. These goals are designed to ensure that by 2030, benchmarks are met requiring all children with diverse socio- economic, race and gender backgrounds receive an equitable and quality education. To meet the needs for inclusive educational practices two areas in education are under consideration: teacher training and curriculum development and implementation. This presentation will highlight the work by two professors working with their students to promote an inclusive social justice education and curricula framework.
Specifically, the presenters will share their experience of empowering their pre-service and in-service teachers to develop their abilities to conceptualize the principles of culturally relevant/responsive/sustaining curriculum and pedagogy and critically evaluate, develop, and implement such principles in teaching, learning, assessment and evaluation practices in school
Ultralight vector dark matter search using data from the KAGRA O3GK run
Among the various candidates for dark matter (DM), ultralight vector DM can be probed by laser interferometric gravitational wave detectors through the measurement of oscillating length changes in the arm cavities. In this context, KAGRA has a unique feature due to differing compositions of its mirrors, enhancing the signal of vector DM in the length change in the auxiliary channels. Here we present the result of a search for U(1)B−L gauge boson DM using the KAGRA data from auxiliary length channels during the first joint observation run together with GEO600. By applying our search pipeline, which takes into account the stochastic nature of ultralight DM, upper bounds on the coupling strength between the U(1)B−L gauge boson and ordinary matter are obtained for a range of DM masses. While our constraints are less stringent than those derived from previous experiments, this study demonstrates the applicability of our method to the lower-mass vector DM search, which is made difficult in this measurement by the short observation time compared to the auto-correlation time scale of DM
Promoting Social Justice through Teacher Education and Curriculum Development and Implementation
UNESCO 2030 (UNESCO, 2015) sustainable development goal 4 highlights the need for inclusive educational practices in order to dismantle the present exclusionary practices in education. These goals are designed to ensure that by 2030, benchmarks are met requiring all children with diverse socio- economic, race and gender backgrounds receive an equitable and quality education. To meet the needs for inclusive educational practices two areas in education are under consideration: teacher training and curriculum development and implementation. This presentation will highlight the work by two professors working with their students to promote an inclusive social justice education and curricula framework.
Specifically, the presenters will share their experience of empowering their pre-service and in-service teachers to develop their abilities to conceptualize the principles of culturally relevant/responsive/sustaining curriculum and pedagogy and critically evaluate, develop, and implement such principles in teaching, learning, assessment and evaluation practices in school
Dipole Effects in the Photoelectron Angular Distributions of the Sulfur Monoxide Anion
Photoelectron angular distributions (PADs) in SO- photodetachment using linearly polarized 355 nm (3.49 eV), 532 nm (2.33 eV), and 611 nm (2.03 eV) light were investigated via photoelectron imaging spectroscopy. The measurements at 532 and 611 nm access the X-^3-Σ^- and a-^1-Delta electronic states of SO, whereas the measurements at 355 nm also access the b-^1Σ^+ state. In aggregate, the photoelectron anisotropy parameter values follow the general trend with respect to electron kinetic energy (eKE) expected for π* orbital photodetachment. The trend is similar to O2-, but the minimum of the SO- curve is shifted to smaller eKE. This shift is attributed mainly to the exit-channel interactions of the departing electron with the dipole moment of the neutral SO core, rather than the differing shapes of the SO- and O2- molecular orbitals. Of the several ab initio models considered, two approaches yield good agreement with the experiment: one representing the departing electron as a superposition of eigenfunctions of a point dipole-field Hamiltonian, and another describing the outgoing electron in terms of Coulomb waves originating from two separated charge centers, with a partial positive charge on the sulfur and an equal negative charge on the oxygen. These fundamentally related approaches support the conclusion that electron-dipole interactions in the exit channel of SO- photodetachment play an important role in shaping the PADs. While a similar conclusion was previously reached for photodetachment from sigma orbitals of CN- (Hart, Lyle, Spellberg, Krylov, Mabbs, J. Phys. Chem. Lett., 2021, 12, 10086-10092), the present work includes the first extension of the dipole-field model to detachment from π* orbitals
Cancel culture and its underlying motivations in Singapore
This study seeks to explore Singaporeans’ understanding of cancel culture and their motivations behind participating in it. Using a mixed-methods approach, this study builds on a series of in-depth interviews with 20 participants who have participated in cancel culture with regards to the recent saga involving local influencer, Xiaxue, and a national survey involving 800 respondents. As a result of the interviews, the study defines cancel culture as the public shaming on a social media platform, carried out or supported by a group of people, which aims to hold people accountable for socially incorrect or unacceptable behaviour. Using the framework of the Theory of Planned Behaviour, this study found attitude, subjective norms, perceived behavioural control, outcome expectancy, and general Belief in a Just World as significant predictors of cancelling behaviour through intention. This study contextualises cancel culture in the local context while providing insight on its predictors and the effects of individual morals on such behaviour.Bachelor of Communication Studie
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Dipole effects in the photoelectron angular distributions of the sulfur monoxide anion
Photoelectron angular distributions (PADs) in SO− photodetachment using linearly polarized 355 nm (3.49 eV), 532 nm (2.33 eV), and 611 nm (2.03 eV) light were investigated via photoelectron imaging spectroscopy. The measurements at 532 and 611 nm access the X3Σ− and a1Δ electronic states of SO, whereas the measurements at 355 nm also access the b1Σ+ state. In aggregate, the photoelectron anisotropy parameter values follow the general trend with respect to electron kinetic energy (eKE) expected for π*-orbital photodetachment. The trend is similar to O2−, but the minimum of the SO− curve is shifted to smaller eKE. This shift is mainly attributed to the exit-channel interactions of the departing electron with the dipole moment of the neutral SO core, rather than the differing shapes of the SO− and O2− molecular orbitals. Of the several ab initio models considered, two approaches yield good agreement with the experiment: one representing the departing electron as a superposition of eigenfunctions of a point dipole-field Hamiltonian, and another describing the outgoing electron in terms of Coulomb waves originating from two separated charge centers, with a partial positive charge on the sulfur and an equal negative charge on the oxygen. These fundamentally related approaches support the conclusion that electron-dipole interactions in the exit channel of SO− photodetachment play an important role in shaping the PADs. While a similar conclusion was previously reached for photodetachment from σ orbitals of CN− (Hart, Lyle, Spellberg, Krylov, Mabbs, J. Phys. Chem. Lett., 2021, 12, 10086-10092), the present work includes the first extension of the dipole-field model to detachment from π* orbitals.American Chemical Society Petroleum Research Fund12 month embargo; first published: 06 September 2022This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
Kavalactone Kawain Impedes Urothelial Tumorigenesis in UPII-Mutant Ha-Ras Mice via Inhibition of mTOR Signaling and Alteration of Cancer Metabolism
UPII-mutant Ha-ras transgenic mice develop urothelial hyperplasia and low-grade papillary carcinoma, which mimics human non-muscle invasive bladder cancer (NMIBC). We investigated the effects and mechanisms of kawain, a main kavalactone in the kava plant, on oncogenic Ha-ras-driven urothelial carcinoma in these mice. The mice were fed at six weeks of age with vehicle control or kawain (6 g/kg) formulated food for approximately five months. Seventy-eight percent of the mice or more fed with kawain food survived more than six months of age, whereas only 32% control food-fed male mice survived, (p = 0.0082). The mean wet bladder weights (a surrogate for tumor burden) of UPII-mutant Ha-ras transgenic mice with kawain diet was decreased by approximately 56% compared to those fed with the control diet (p = 0.035). The kawain diet also significantly reduced the occurrence of hydronephrosis and hematuria in UPII-mutant Ha-ras transgenic mice. Histological examination and immunohistochemistry analysis revealed that vehicle control-treated mice displayed more urothelial carcinoma and Ki67-positive cells in the bladder compared to kawain treated mice. Global metabolic profiling of bladder tumor samples from mice fed with kawain food showed significantly more enrichment of serotonin and less abundance of xylulose, prostaglandin A2, D2 and E2 compared to those from control diet-fed mice, suggesting decreased shunting of glucose to the pentose phosphate pathway (PPP) and reduced inflammation. In addition, kawain selectively inhibited the growth of human bladder cancer cell lines with a significant suppression of 4E-BP1 expression and rpS6 phosphorylation. These observations indicate a potential impact of kawain consumption on bladder cancer prevention by rewiring the metabolic programs of the tumor cells
(E)- and (Z)-4-Methyl-5-[5-(2,6,6-trimethylcyclohexen-1-yl)-3-methyl-2-trans, 4-trans-pentadienylidene]-2(5H)-furanone. Synthesis and spectral properties
Language, Culture, Identity, and Power: Intercultural Learning/Teaching in China, Costa Rica, Mexico, and the United States
In this curriculum dialogue session, a group of multiethnic researchers explore their experience of language, culture, identity, and power in intercultural learning and teaching in China, CostaRica, Mexico, and the United States. Such experience helps them to understand teaching contexts embodied in race, gender, class, language, culture, ethnicity, identity, sexual orientation, and ability, and the potential impact of these characteristics on students’ educational experiences, learning, and academic success. Such experience helps them to engage in culturallyrelevant/responsive/sustaining teaching, learning, assessment and evaluation practices based on students’ developmental needs and their cultural and linguistic backgrounds. Such experience helps them to recognize implicit and explicit bias and purposefully overcome such bias to create inclusive and equitable educational opportunities for all students. Such experience enables them to validate the cultural capital of urban students as assets/funds of knowledge to inform their instructional practices and dispositions. Such experience encourages them to make a commitment to the empowerment of culturally and linguistically diverse students within formal and informal educational contexts. Such experience inspires them to develop culturally and linguistically relevant/responsive/sustaining curricular knowledge and pedagogical strategies,and value funds of knowledge and community resources to envision curricular and pedagogical innovations as ways to cultivate culturally and linguistically inspirational learning environments and create equal opportunities to empower racially, culturally, socioeconomically, andlinguistically diverse students to reach their highest potential (Sidle-Walker, 1996). Potentials, challenges, and future directions of intercultural learning and teaching are also discussed
#CancelCulture: examining definitions and motivations
While cancel culture has become a social media buzzword, scholarly understanding of this phenomenon is still at its nascent stage. To contribute to a more nuanced understanding of cancel culture, this study uses a sequential exploratory mixed-methods approach by starting with in-depth interviews with social media users (n = 20) followed by a national online survey (n = 786) in Singapore. Through the interviews, we found that our participants understand cancel culture as more than just a mob engaged in public shaming on social media; it also involves perceptions of power imbalance and social justice. Building on these perspectives from our interviews, we tested the framework of theory of planned behavior in predicting intention to engage in cancel culture and expanded it by examining the effects of people’s belief in a just world using an online national survey in Singapore. The analysis showed that attitude, subjective norms and perceived behavioral control were positively related to intention to engage in cancel culture, while general belief in a just world was a negative predictor.This research is supported by the Singapore Social Science Research Council via the corresponding author’s SSRC Grant (MOE2018-SSRTG-022)