251 research outputs found
The edge of the sea: complexity, layering and gesture as analogy and meaning
The output is a creative project, āThe edge of the sea: complexity, layering and gesture as analogy and meaningā, comprising a body of work responding to rockpool formations and the translation of field drawings into print and sequential imagery. Research process: The project began with the Rachel Carson book The Edge of the Sea (1955), dealing with the complexities and balance of a transient ecosystem. The research processes focussed on Johann Wolfgang von Goetheās singular, romantic idea of āAll is Leafā; that within the details of a phenomena we can bear witness to the whole. Mills uses drawing to explore whether an isolated shape, line, texture, open up the reading of an image to broader interpretation that the initial observation and how we can communicate something other, or something more, than what we are representing on the page. Research insights: The project found ways and means that image-making can be used to communicate the complex, transient, self-organising system of a rockpool and how the isolation of visual devices can help communicate those findings on a more analogous level. The research revealed that our perception of an element, a fraction of the whole, can help us understand wider context. The work led to insights into the communicative nature of mark-making, the process of translation of experience and the meaning of this particular ornamentation. Dissemination: The research was disseminated at Decriminalising Ornament: The Pleasures of Pattern, The Illustration Research Symposium, 17 ā 18 November 2018 at Anglia Ruskin University
Print stuff ā independent print & publishing fair
Print Stuff is an independent print & publishing fair held, for the past three years at the De Grey Rooms, York. Crossing between illustration, textiles, graphic design, photography, poetry and comics, the curated event champions the interdisciplinary space that printmaking and self-publishing provides. The fair functions as an affordable space for artists and publishers to exhibit and sell their work, start conversations and promote an authorial approach to contemporary print. The event was started in 2017, with over 50 exhibitors showing work and free monoprint workshops on-site run by Leeds Print Workshop with approximately 900 visitors throughout the day. The 2018 event also included a series of exhibitions held across York in the lead-up to the fair itself (at Fossgate Social, Kiosk Project Space and Random Encounter) and welcomed around 1200 visitors on the day. The 2019 event was held over 2 days, with talks and workshops across the weekend from exhibitors and academics in the field of print and self-publishing, as well as featuring over 50 exhibitors and an exhibition of artists' work held at York College. The Print Stuff project has sought to provide a platform for contemporary, self-authored work in order to seek connections between disciplines and explore the potential of printed matter as a unifying factor of creative practice. Over the past three years, we have been able to situate photobooks alongside comic artists and more traditional printmakers in order to establish a dialogue about the value, role and future of the printed form. http://www.print-stuff.co.u
The 8p11-P12 Amplicon Oncogenes ASH2L and NSD3 Regulate Cell Cycle Progression via Epigenetic Alterations and Result in Overexpression and Estrogen-Independent Activation of ERĪ± in Breast Cancer
Breast cancer is a highly heterogeneous disease classified clinically by expression of estrogen receptor alpha ERĪ±, progesterone receptor, and human epidermal growth factor receptor. Molecular expression profiling identified a luminal breast cancer sub-type that can be sub-divided into luminal A and B. Compared to luminal A, luminal B tumors have increased proliferation, poor prognosis, endocrine therapy resistance, and complex genomes, including amplification of the 8p11-p12 genomic region. This amplicon occurs in 15% of primary breast tumors, correlates with poor prognosis and tamoxifen resistance, and harbors several oncogenes. Two of these oncogenes, ASH2L and NSD3 (WHSC1L1), promote transcription via epigenetic modification of histone proteins. NSD3 has a long isoform that is associated with di-methylation of lysine 36 on histone 3 (H3K36me2) and a short isoform that lacks a catalytic SET domain but retains the ability to interact with chromatin. ASH2L also lacks a catalytic SET domain yet is tightly and specifically linked to tri-methylation of lysine 4 on histone 3 (H3K4me3) in gene promoters. In this study, we tested the hypothesis that ASH2L and NSD3 cooperate to regulate expression of a suite of genes important in breast cancer, including ESR1, which encodes ERĪ±. We discovered that NSD3-short is the major oncogenic isoform of NSD3 and its amplification and overexpression leads to overexpression and estrogen-independent activation of ERĪ±. We also demonstrated that knockdown of ASH2L reduces H3K4me3 specifically in promoters of genes important to cell cycle progression. ASH2L also regulates promoter H3K4me3 at NSD3 and expression of both NSD3 and ERĪ±. Knockdown of ASH2L reduced sensitivity to the cell cycle inhibitor palbociclib in the 8p11-p12 amplicon-bearing SUM-44 cell line. Together, the data presented here identify a role for ASH2L and NSD3 in cooperative regulation of genes important to cell cycle regulation, including ESR1, and demonstrate that ERĪ± is active in an estrogen-independent manner in the context of overexpression of these oncogenes. We have discovered a novel mechanism of endocrine resistance in luminal B breast cancers and provided evidence for the 8p11-p12 amplicon as a biomarker of patients who will respond to cell cycle inhibitors and epigenetic therapies against histone methyltransferase enzymes
Enhancing Teachersā Knowledge of Core Academic Standards through a Digital Content Development Workshop
There is an immediate need to help classroom teachers understand the common core standards so they can more effectively teach the content to students of the digital generation. This study summarized the activities in a digital content development workshop for empowering teachers to develop standards-based digital content for K-8 students in need of accelerated learning. Using a pretest-posttest design, the study also examined the impact of the digital content development workshop on participating teachersā knowledge of core academic standards. A self-developed Knowledge of Core Academic Standards (KCAS) survey was used to measure teachersā recall of core academic standards, teachersā awareness of possible changes expected from the implementation of core academic standards, and teachersā understanding of the differences between the previous standards and the new core academic standards. Paired-samples t-tests were used to evaluate the mean differences before and after the KCAS survey in teachersā recall scores, teachersā awareness ratings, and the ratings of teachersā understanding of the differences. Findings indicated that participating teachers in the digital content development workshop gained significantly in the recall of core academic standards scores on the KCAS survey. Moreover, participating teachers also gained significantly in ratings of the awareness of possible changes and understanding of differences. The digital content development workshop offered a content-embedded pathway for enhancing teachersā knowledge of core academic standards. Limitations to the study are also discussed
Screening of the COL8A2 gene in an Australian family with early-onset Fuchsā endothelial corneal dystrophy
This item is under embargo for a period of 12 months from the date of publication, in accordance with the publisher's policy
Review of the prevalence of diabetic retinopathy in Indigenous Australians
Author version made available in accordance with Publisher copyright policy.The purpose of this review is to compare the prevalence of diabetic retinopathy (DR) between Indigenous and non-Indigenous Australians with Diabetes Mellitus (DM). Australian DR prevalence data from 6 Indigenous studies (nā=ā2865) and 5 non-Indigenous studies (nā=ā9801) conducted between 1985 and 2013 were included for analysis. Estimated prevalence of any DR among Indigenous Australians with DM was 23.4% compared with 28.9% for non-Indigenous Australians (Ļ2ā=ā26.9, Pā<ā0.001). In studies performed after 1990, a significantly higher rate of diabetic macular edema was found in Indigenous compared with non-Indigenous Australians with DM (7.6% versus 4.9%, Ļ2ā=ā6.67, Pā=ā0.01). Although there are limitations in comparing these studies, one explanation for the observed data could be a model in which Indigenous Australians are relatively resistant to early stage DR, but with a subset progressing to sight threatening DR due to individual genetic and environmental susceptibility factors coupled with poor glycemic control
Differentiation of a contractile, ureter-like tissue, from Embryonic Stem cell-derived ureteric bud and <i>Ex-Fetu</i> mesenchyme
BACKGROUND: There is intense interest in replacing kidneys from stem cells. It is now possible to produce, from embryonic or induced pluripotent stem cells, kidney organoids that represent immature kidneys and display some physiologic functions. However, current techniques have not yet resulted in renal tissue with a ureter, which would be needed for engineered kidneys to be clinically useful. METHODS: We used a published sequence of growth factors and drugs to induce mouse embryonic stem cells to differentiate into ureteric bud tissue. We characterized isolated engineered ureteric buds differentiated from embryonic stem cells in three-dimensional culture and grafted them into ex fetu mouse kidney rudiments. RESULTS: Engineered ureteric buds branched in three-dimensional culture and expressed Hoxb7, a transcription factor that is part of a developmental regulatory system and a ureteric bud marker. When grafted into the cortex of ex fetu kidney rudiments, engineered ureteric buds branched and induced nephron formation; when grafted into peri-Wolffian mesenchyme, still attached to a kidney rudiment or in isolation, they did not branch but instead differentiated into multilayer ureter-like epithelia displaying robust expression of the urothelial marker uroplakin. This engineered ureteric bud tissue also organized the mesenchyme into smooth muscle that spontaneously contracted, with a period a little slower than that of natural ureteric peristalsis. CONCLUSIONS: Mouse embryonic stem cells can be differentiated into ureteric bud cells. Grafting those UB-like structures into peri-Wolffian mesenchyme of cultured kidney rudiments can induce production of urothelium and organize the mesenchyme to produce rhythmically contracting smooth muscle layers. This development may represent a significant step toward the goal of renal regeneration
Trends and level of control of hypertension among adults attending an ambulatory HIV clinic in Kampala, Uganda: a retrospective study.
BACKGROUND: With an ageing HIV-positive population, sub-Saharan Africa is now facing a dual epidemic of communicable and non-communicable diseases (NCDs). This study aimed to assess trends in the prevalence of hypertension and factors associated with hypertension, among adults attending an ambulatory HIV clinic in Kampala, Uganda. METHODS: We conducted a retrospective chart review to identify patients with hypertension. We used a random number generator to select 400 patient charts from each year from 2009 to 2014. Blood pressure, age, body mass index (BMI), WHO disease stage and Karnofsky scores were extracted. Logistic regression was used to estimate the strength of the association between each of these factors and the presence of hypertension. RESULTS: In total, 1996 charts were included in this analysis. The mean age of participants was 31ā
years and 1311/1996 (65.7%) were female. The overall prevalence of hypertension was 418/1996 (20.9%). This rose from 16.9% in 2009 to 32.3% in 2013. Of the patients with hypertension, 96/418 (23.0%) were receiving adequate treatment. Patients >50ā
years of age had 3.12 times the odds of hypertension compared with patients aged 20-29ā
years (95% CI 2.00 to 4.85). Men had 1.65 times the odds of hypertension compared with women (95% CI 1.34 to 2.03) and patients with a BMI of 35-39ā
kg/m2 had 3.93 times the odds of hypertension compared with patients with a BMI <25ā
kg/m2. CONCLUSIONS: The prevalence of hypertension is rising in the Ugandan HIV-positive population. There remains inadequate management and control of hypertension in this group highlighting the need to better integrate NCD care within the HIV clinical settings
Life expectancy among HIV-positive patients in Rwanda: a retrospective observational cohort study
Background Rwanda has achieved substantial progress in scaling up of antiretroviral therapy. We aimed to assess the
eff ect of increased access to antiretroviral therapy on life expectancy among HIV-positive patients in two distinct
periods of lower and higher antiretroviral therapy coverage (1997ā2007 and 2008ā11).
Methods In a retrospective observational cohort study, we collected clinical and demographic data for all HIV-positive
patients enrolled in care at 110 health facilities across all fi ve provinces of Rwanda. We included patients aged 15 years
or older with a known enrolment date between 1997 and 2014. We constructed abridged life tables from age-specifi c
mortality rates and life expectancy stratifi ed by sex, CD4 cell count, and WHO disease stage at enrolment in care and
initiation of antiretroviral therapy.
Findings We included 72 061 patients in this study, contributing 213 983 person-years of follow-up. The crude mortality
rate was 33Ā·4 deaths per 1000 person-years (95% CI 32Ā·7ā34Ā·2). Life expectancy for the overall cohort was
25Ā·6 additional years (95% CI 25Ā·1ā26Ā·1) at 20 years of age and 23Ā·3 additional years (95% CI 22Ā·9ā23Ā·7) at 35 years
of age. Life expectancy at 20 years of age in the period of 1997ā2007 was 20Ā·4 additional years (95% CI 19Ā·5ā21Ā·3); for
the period of 2008ā11, life expectancy had increased to 25Ā·6 additional years (95% CI 24Ā·8ā26Ā·4). Individuals
enrolling in care with CD4 cell counts of 500 cells per Ī¼L or more, and with WHO disease stage I, had the highest life
expectancies.
Interpretation This study adds to the growing body of evidence showing the benefi t to HIV-positive patients of early enrolment in care and initiation of antiretroviral therapy
- ā¦