170 research outputs found

    Unsettling SpongeBob and the Legacies of Violence on Bikini Bottom

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    Billions of people around the globe are well-acquainted with SpongeBob Squarepants and the antics of the title character and his friends on Bikini Bottom. By the same token, there is an absence of public discourse about the whitewashing of violent American military activities through SpongeBob’s occupation and reclaiming of the bottom of Bikini Atoll’s lagoon. SpongeBob Squarepants and his friends play a role in normalizing the settler colonial takings of Indigenous lands while erasing the ancestral Bikinian people from their nonfictional homeland. This article exposes the complicity of popular culture in maintaining American military hegemonies in Oceania while amplifying the enduring indigeneity (Kauanui 2016) of the Marshallese people, who maintain deeply spiritual and historical connections to land—even land they cannot occupy due to residual radiation contamination from US nuclear weapons testing—through a range of cultural practices, including language, song, and weaving. This article also considers the gendered violence of nuclear colonialism and the resilience of Marshallese women

    Global-Service Learning and Student-Athletes: A Model for Enhanced Academic Inclusion at the University of Washington

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    BackgroundThe University of Washington (UW) continues to create opportunities to engage all students in transformational undergraduate educational opportunities, such as study abroad.ObjectiveThis article describes specific efforts to increase inclusion for student-athletes in study abroad, particularly for first-generation students, including low-income students of color. Given the overrepresentation of students of color in sports vis-à-vis the larger student body at predominantly white institutions (PWIs), like UW, service-learning in communities beyond campus boundaries provides opportunities to apply international learning to a local context and to create a continuum of learning.MethodsBy coupling educational theories from the classroom—particularly theories related to power and privilege—with community-based leadership in local communities, students are better prepared to actively engage in improving their own institutions. During the summers of 2013, 2014, and 2015, the author was the instructor for study abroad courses to French Polynesia with student-athletes. The courses were for 12 days (10 days on the ground and 2 days of flying), the maximum time that football players could be away from required summer workouts. This paper examines student evaluations from the French Polynesia trip in 2015.FindingsStudent-athlete evaluations of a study abroad experience underscored: the transformative impact of study abroad to their academic, social, and athletic lives; the benefit of creating family-like relationships outside the confines of their sport; an appreciation for the many forms where indigenous knowledge resides, such as in navigation, dance, fishing, weaving, and cooking; intense feelings of culture shock upon return to the US, even when the trip is short in duration; a desire to engage with the diverse communities in Seattle beyond the scope of the program's structure, and; frustration, particularly for the male student-athletes, about the ways coaches, family, and friends wanted to frame the study abroad experience as a tourist experience in the South Pacific. In this regard, the student-athletes encountered stereotypes from their own communities that framed Oceania as a place for tourism, and student-athletes as uninterested in deep engagement with research and theory–stereotypes that the student-athletes resist.ConclusionsThis paper explains how the findings, coupled with Hartman and Kiely’s theories for global service learning (GSL), lead to recommendations for strengthening the future connections between global and local learning for students

    Effects of Temperature on Emergence and Seasonality of West Nile Virus in California

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    Temperature has played a critical role in the spatiotemporal dynamics of West Nile virus transmission throughout California from its introduction in 2003 through establishment by 2009. We compared two novel mechanistic measures of transmission risk, the temperature-dependent ratio of virus extrinsic incubation period to the mosquito gonotrophic period (BT), and the fundamental reproductive ratio (R0) based on a mathematical model, to analyze spatiotemporal patterns of receptivity to viral amplification. Maps of BT and R0 were created at 20-km scale and compared throughout California to seroconversions in sentinel chicken flocks at half-month intervals. Overall, estimates of BT and R0 agreed with intensity of transmission measured by the frequency of sentinel chicken seroconversions. Mechanistic measures such as these are important for understanding how temperature affects the spatiotemporal dynamics of West Nile virus transmission and for delineating risk estimates useful to inform vector control agency intervention decisions and communicate outbreak potential

    Secondary somatic mutations restoring RAD51C and RAD51D associated with acquired resistance to the PARP inhibitor rucaparib in high-grade ovarian carcinoma

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    High-grade epithelial ovarian carcinomas (OC) containing mutated BRCA1 or BRCA2 (BRCA1/2) homologous recombination (HR) genes are sensitive to platinum-based chemotherapy and poly(ADP-ribose) polymerase inhibitors (PARPi), while restoration of HR function due to secondary mutations in BRCA1/2 has been recognized as an important resistance mechanism. We sequenced core HR pathway genes in 12 pairs of pre-treatment and post-progression tumor biopsy samples collected from patients in ARIEL2 Part 1, a phase 2 study of the PARPi rucaparib as treatment for platinum-sensitive, relapsed OC. In six of 12 pre-treatment biopsies, a truncation mutation in BRCA1, RAD51C or RAD51D was identified. In five of six paired post-progression biopsies, one or more secondary mutations restored the open reading frame. Four distinct secondary mutations and spatial heterogeneity were observed for RAD51C. In vitro complementation assays and a patient-derived xenograft (PDX), as well as predictive molecular modeling, confirmed that resistance to rucaparib was associated with secondary mutations

    Volcanic glass from the 1.8 ka Taupƍ eruption (New Zealand) detected in Antarctic ice at ~ 230 CE.

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    Chemical anomalies in polar ice core records are frequently linked to volcanism; however, without the presence of (crypto)tephra particles, links to specific eruptions remain speculative. Correlating tephras yields estimates of eruption timing and potential source volcano, offers refinement of ice core chronologies, and provides insights into volcanic impacts. Here, we report on sparse rhyolitic glass shards detected in the Roosevelt Island Climate Evolution (RICE) ice core (West Antarctica), attributed to the 1.8 ka Taupƍ eruption (New Zealand)-one of the largest and most energetic Holocene eruptions globally. Six shards of a distinctive geochemical composition, identical within analytical uncertainties to proximal Taupƍ glass, are accompanied by a single shard indistinguishable from glass of the ~25.5 ka ƌruanui supereruption, also from Taupƍ volcano. This double fingerprint uniquely identifies the source volcano and helps link the shards to the climactic phase of the Taupƍ eruption. The englacial Taupƍ-derived glass shards coincide with a particle spike and conductivity anomaly at 278.84 m core depth, along with trachytic glass from a local Antarctic eruption of Mt. Melbourne. The assessed age of the sampled ice is 230 ± 19 CE (95% confidence), confirming that the published radiocarbon wiggle-match date of 232 ± 10 CE (2 SD) for the Taupƍ eruption is robust

    Birthweight, Maternal Weight Trajectories and Global DNA Methylation of LINE-1 Repetitive Elements

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    Low birthweight, premature birth, intrauterine growth retardation, and maternal malnutrition have been related to an increased risk of cardiovascular disease, type 2 diabetes mellitus, obesity, and neuropsychiatric disorders later in life. Conversely, high birthweight has been linked to future risk of cancer. Global DNA methylation estimated by the methylation of repetitive sequences in the genome is an indicator of susceptibility to chronic diseases. We used data and biospecimens from an epigenetic birth cohort to explore the association between trajectories of fetal and maternal weight and LINE-1 methylation in 319 mother-child dyads. Newborns with low or high birthweight had significantly lower LINE-1 methylation levels in their cord blood compared to normal weight infants after adjusting for gestational age, sex of the child, maternal age at delivery, and maternal smoking during pregnancy (p = 0.007 and p = 0.036, respectively), but the magnitude of the difference was small. Infants born prematurely also had lower LINE-1 methylation levels in cord blood compared to term infants, and this difference, though small, was statistically significant (p = 0.004). We did not find important associations between maternal prepregnancy BMI or gestational weight gain and global methylation of the cord blood or fetal placental tissue. In conclusion, we found significant differences in cord blood LINE-1 methylation among newborns with low and high birthweight as well as among prematurely born infants. Future studies may elucidate whether chromosomal instabilities or other functional consequences of these changes contribute to the increased risk of chronic diseases among individuals with these characteristics

    Alteration of metabolic conditions impacts the regulation of IGF-II/H19 imprinting status in prostate cancer

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    Prostate cancer is the second major cause of male cancer deaths. Obesity, type 2 diabetes, and cancer risk are linked. Insulin-like growth factor II (IGF-II) is involved in numerous cellular events, including proliferation and survival. The IGF-II gene shares its locus with the lncRNA, H19. IGF-II/H19 was the first gene to be identified as being “imprinted”—where the paternal copy is not transcribed—a silencing phenomenon lost in many cancer types. We disrupted imprinting behaviour in vitro by altering metabolic conditions and quantified it using RFLP, qPCR and pyrosequencing; changes to peptide were measured using RIA. Prostate tissue samples were analysed using ddPCR, pyrosequencing and IHC. We compared with in silico data, provided by TGCA on the cBIO Portal. We observed disruption of imprinting behaviour, in vitro, with a significant increase in IGF-II and a reciprocal decrease in H19 mRNA; the increased mRNA was not translated into peptides. In vivo, most specimens retained imprinting status apart from a small subset which showed reduced imprinting. A positive correlation was seen between IGF-II and H19 mRNA expression, which concurred with findings of larger Cancer Genome Atlas (TGCA) cohorts. This positive correlation did not affect IGF-II peptide. Our findings show that type 2 diabetes and/or obesity, can directly affect regulation growth factors involved in carcinogenesis, indirectly suggesting a modification of lifestyle habits may reduce cancer risk
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