1,187 research outputs found
Recommended from our members
Some Personal Observations on My Drawing
The reasons for my involvement in drawing for the past two years are several. In particular, I rediscovered drawing at a time when a new approach to solving problems of form in painting was a major concern for me. I had not built up past vocabulary of form and technique in using drawing as a creative means, thus I did not have to unlearn old habits in order to solve problems, but could approach these problems with a fresh material. Even the pencil which is a major element of my recent drawings has become a new tool with endless possibilities.
It would probably be possible to say that there is a concern for levels of readability in my drawings. In addition, the success of the drawings depends on the tension that exists between forms that are more easily recognized and those that have an ambiguous nature.
</p
Recommended from our members
Bi-Directional Learning: Identifying Contaminants on the Yurok Indian Reservation.
The Yurok Tribe partnered with the University of California Davis (UC Davis) Superfund Research Program to identify and address contaminants in the Klamath watershed that may be impairing human and ecosystem health. We draw on a community-based participatory research approach that begins with community concerns, includes shared duties across the research process, and collaborative interpretation of results. A primary challenge facing University and Tribal researchers on this project is the complexity of the relationship(s) between the identity and concentrations of contaminants and the diversity of illnesses plaguing community members. The framework of bi-directional learning includes Yurok-led river sampling, Yurok traditional ecological knowledge, University lab analysis, and collaborative interpretation of results. Yurok staff and community members share their unique exposure pathways, their knowledge of the landscape, their past scientific studies, and the history of landscape management, and University researchers use both specific and broad scope chemical screening techniques to attempt to identify contaminants and their sources. Both university and tribal knowledge are crucial to understanding the relationship between human and environmental health. This paper examines University and Tribal researchers' shared learning, progress, and challenges at the end of the second year of a five-year Superfund Research Program (SRP) grant to identify and remediate toxins in the lower Klamath River watershed. Our water quality research is framed within a larger question of how to best build university-Tribal collaboration to address contamination and associated human health impacts
Cytomegalovirus Serostatus, Inflammation, and Antibody Response to Influenza Vaccination in Older Adults: The Moderating Effect of Beta Blockade
Cytomegalovirus (CMV) has been implicated as a factor in immunosenescence, including poor antibody response to vaccination and higher immune activation and inflammation. Some people may be more or less vulnerable to the negative effects of CMV. The present investigation tested the effects of beta-blocker use and chronological age on the associations between CMV and immunity in adults aged 60–91 (N=98; 69% CMV seropositive) who were administered the trivalent influenza vaccine for up to 5 years. Peak antibody response, corrected for baseline, and spring (persistent) antibody response, corrected for peak, were assessed, as well as beta-2 microglobulin (β2μ) and interleukin-6 (IL-6). In multi-level models with years at Level 1 and people at Level 2, CMV serostatus did not predict peak antibody response, but there was a 3-way interaction between CMV serostatus, age, and beta-blockers. Age was negatively associated with peak antibody, but only among adults who were CMV seropositive and taking beta-blockers. CMV seronegative adults who were not taking beta-blockers had the highest antibody persistence. CMV serostatus was not associated with β2μ or IL-6. Results suggest that CMV+ serostatus may negatively compromise antibody response to a greater degree than inflammatory markers in older adults. Furthermore, older adults who take beta-blockers may be more vulnerable to negative effects of age and CMV on peak antibody response, perhaps by virtue of their underlying health condition
Fragmentation in Australian Commonwealth and South Australian State policy on mental health and older people: A governmentality analysis
This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page(https://us.sagepub.com/en-us/nam/open-access-at-sage).Mental health care for older people is a significant and growing issue in Australia and
internationally. This article describes how older people’s mental health is governed
through policy discourse by examining Australian Commonwealth and South
Australian State government policy documents, and commentaries from professional
groups, advocacy groups and non-governmental organisations. Documents published
between 2009 and 2014 were analysed using a governmentality approach, informed
by Foucault. Discourses of ‘risk’, ‘ageing as decline/dependence’ and ‘healthy ageing’
were identified. Through these discourses, different neo-liberal governmental
strategies are applied to ‘target’ groups according to varying risk judgements. Three
policy approaches were identified where older people are (1) absent from policy,
(2) governed as responsible, active citizens or (3) governed as passive recipients of
health care. This fragmented policy response to older people’s mental health reflects
fragmentation in the Australian policy environment. It constructs an ambiguous place
for older people within neo-liberal governmental rationality, with significant effects on
the health system, older people and their carers
Mitochondrial Phenotypes in Purified Human Immune Cell Subtypes and Cell Mixtures
Using a high-throughput mitochondrial phenotyping platform to quantify multiple mitochondrial features among molecularly defined immune cell subtypes, we quantify the natural variation in mitochondrial DNA copy number (mtDNAcn), citrate synthase, and respiratory chain enzymatic activities in human neutrophils, monocytes, B cells, and naïve and memory T lymphocyte subtypes. In mixed peripheral blood mononuclear cells (PBMCs) from the same individuals, we show to what extent mitochondrial measures are confounded by both cell type distributions and contaminating platelets. Cell subtype-specific measures among women and men spanning four decades of life indicate potential age- and sex-related differences, including an age-related elevation in mtDNAcn, which are masked or blunted in mixed PBMCs. Finally, a proof-of-concept, repeated-measures study in a single individual validates cell type differences and also reveals week-to-week changes in mitochondrial activities. Larger studies are required to validate and mechanistically extend these findings. These mitochondrial phenotyping data build upon established immunometabolic differences among leukocyte subpopulations, and provide foundational quantitative knowledge to develop interpretable blood-based assays of mitochondrial health
- …