The Bulletin, School of Nursing Alumnae Association, 1977

A Letter from the President Progress - The New Jefferson Hospital/Clinical Teaching Facility 1977 School of Nursing A Comprehensive Approach to Hand Rehabilitation Parking Garage Your Sesquicentennial Campaign Social Report Scholarship Report Sick and Welfare Committee Program Committee Resource Committee of the Board of Trustees Bulletin Administration Ways and Means Committee Report Resume of Minutes of Alumnae Association Meetings Duke University Distinguished Alumna Award to Col. Catherine T. Betz (Ret.) Patient Representatives The Joys and Sorrows of a Director of Geriatric Nursing Highlights 1976 P.N.A Convention Class News Marriages Births In Memoriam A Letter from the Former President Help Us - Help Yo

Protection from annual flooding is correlated with increased cholera prevalence in Bangladesh: a zero-inflated regression analysis

<p>Abstract</p> <p>Background</p> <p>Alteration of natural or historical aquatic flows can have unintended consequences for regions where waterborne diseases are endemic and where the epidemiologic implications of such change are poorly understood. The implementation of flood protection measures for a portion of an intensely monitored population in Matlab, Bangladesh, allows us to examine whether cholera outcomes respond positively or negatively to measures designed to control river flooding.</p> <p>Methods</p> <p>Using a zero inflated negative binomial model, we examine how selected covariates can simultaneously account for household clusters reporting no cholera from those with positive counts as well as distinguishing residential areas with low counts from areas with high cholera counts. Our goal is to examine how residence within or outside a flood protected area interacts with the probability of cholera presence and the effect of flood protection on the magnitude of cholera prevalence.</p> <p>Results</p> <p>In Matlab, living in a household that is protected from annual monsoon flooding appears to have no significant effect on whether the household experiences cholera, net of other covariates. However, counter-intuitively, among households where cholera is reported, living within the flood protected region significantly increases the number of cholera cases.</p> <p>Conclusions</p> <p>The construction of dams or other water impoundment strategies for economic or social motives can have profound and unanticipated consequences for waterborne disease. Our results indicate that the construction of a flood control structure in rural Bangladesh is correlated with an increase in cholera cases for residents protected from annual monsoon flooding. Such a finding requires attention from both the health community and from governments and non-governmental organizations involved in ongoing water management schemes.</p

Introduction: Toward an Engaged Feminist Heritage Praxis

We advocate a feminist approach to archaeological heritage work in order to transform heritage practice and the production of archaeological knowledge. We use an engaged feminist standpoint and situate intersubjectivity and intersectionality as critical components of this practice. An engaged feminist approach to heritage work allows the discipline to consider women’s, men’s, and gender non-conforming persons’ positions in the field, to reveal their contributions, to develop critical pedagogical approaches, and to rethink forms of representation. Throughout, we emphasize the intellectual labor of women of color, queer and gender non-conforming persons, and early white feminists in archaeology

Comparative Transcriptional and Genomic Analysis of Plasmodium falciparum Field Isolates

Mechanisms for differential regulation of gene expression may underlie much of the phenotypic variation and adaptability of malaria parasites. Here we describe transcriptional variation among culture-adapted field isolates of Plasmodium falciparum, the species responsible for most malarial disease. It was found that genes coding for parasite protein export into the red cell cytosol and onto its surface, and genes coding for sexual stage proteins involved in parasite transmission are up-regulated in field isolates compared with long-term laboratory isolates. Much of this variability was associated with the loss of small or large chromosomal segments, or other forms of gene copy number variation that are prevalent in the P. falciparum genome (copy number variants, CNVs). Expression levels of genes inside these segments were correlated to that of genes outside and adjacent to the segment boundaries, and this association declined with distance from the CNV boundary. This observation could not be explained by copy number variation in these adjacent genes. This suggests a local-acting regulatory role for CNVs in transcription of neighboring genes and helps explain the chromosomal clustering that we observed here. Transcriptional co-regulation of physical clusters of adaptive genes may provide a way for the parasite to readily adapt to its highly heterogeneous and strongly selective environment

Oncogenic Properties of Apoptotic Tumor Cells in Aggressive B Cell Lymphoma

BACKGROUND: Cells undergoing apoptosis are known to modulate their tissue microenvironments. By acting on phagocytes, notably macrophages, apoptotic cells inhibit immunological and inflammatory responses and promote trophic signaling pathways. Paradoxically, because of their potential to cause death of tumor cells and thereby militate against malignant disease progression, both apoptosis and tumor-associated macrophages (TAMs) are often associated with poor prognosis in cancer. We hypothesized that, in progression of malignant disease, constitutive loss of a fraction of the tumor cell population through apoptosis could yield tumor-promoting effects. RESULTS: Here, we demonstrate that apoptotic tumor cells promote coordinated tumor growth, angiogenesis, and accumulation of TAMs in aggressive B cell lymphomas. Through unbiased "in situ transcriptomics" analysis-gene expression profiling of laser-captured TAMs to establish their activation signature in situ-we show that these cells are activated to signal via multiple tumor-promoting reparatory, trophic, angiogenic, tissue remodeling, and anti-inflammatory pathways. Our results also suggest that apoptotic lymphoma cells help drive this signature. Furthermore, we demonstrate that, upon induction of apoptosis, lymphoma cells not only activate expression of the tumor-promoting matrix metalloproteinases MMP2 and MMP12 in macrophages but also express and process these MMPs directly. Finally, using a model of malignant melanoma, we show that the oncogenic potential of apoptotic tumor cells extends beyond lymphoma. CONCLUSIONS: In addition to its profound tumor-suppressive role, apoptosis can potentiate cancer progression. These results have important implications for understanding the fundamental biology of cell death, its roles in malignant disease, and the broader consequences of apoptosis-inducing anti-cancer therapy

A Roadmap for HEP Software and Computing R&D for the 2020s

Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facilities and experiments, or to upgrade existing ones. Similarly, it requires commensurate investment in the R&D of software to acquire, manage, process, and analyse the shear amounts of data to be recorded. In planning for the HL-LHC in particular, it is critical that all of the collaborating stakeholders agree on the software goals and priorities, and that the efforts complement each other. In this spirit, this white paper describes the R&D activities required to prepare for this software upgrade.Peer reviewe

Predictions and quantitative tests of optimal time and temperature allocation during intermittent incubation

Tests of optimization models are often criticized when the qualitative predictions of general models cannot be falsified. However, adequate tests of specific models require both quantitative predictions and precise data. Precise modeling techniques for thermal transients permit prediction of the egg temperature ( T Eexit ) at which a bird should leave the nest to maximize percent time foraging ( P ) when constrained by incubation. Within an incubation cycle, [Special characters omitted.] , when t cool , t heat , and t equil are times for egg cooling, heating, and maintenance at a constant temperature, and τ is travel time. T Eexit values for 4 bird species were compared with those predicted by the model. Observed T Eexit values for approximately half of all incubation cycles did not maximize P (N = 243; 4 species combined). Variation in incubation patterns produced slightly different average egg temperatures for each species, possibly producing different embryo development times. However, average predicted T Eexit across entire incubation periods (egg laying to hatching), were the same as observed. Thus, birds may maximize long-term P by combining incubation cycles with variation in time components to compensate for non-optimal behavior. Time required for incubation reduced P from a theoretical maximum of 100% to 19.77% for Black-capped Chickadees, 28.06% for Yellow-eyed Juncos, 34.27% for Tree Swallows, and 39.4% for House Wrens. Additional optimization criteria were also considered. T Eexit to maximize the rate of net energy gain ( RNEG ) differed from observed for individual junco, wren, and swallow incubation cycles and entire incubation periods. T Eexit to maximize RNEG for chickadee incubation cycles differed from observed, but average optimal T Eexit was the same as observed for the entire incubation period. The chickadees\u27 ability to achieve the predicted average optimal T Eexist is linked to superior nest insulation and food caching behavior. T Eexist to maximize foraging efficiency differed from observed for all species. Although tests for all criteria could be falsified for individual cycles, predictions for P for entire incubation periods could not be falsified. Critics of optimization modeling would consider this a panglossian, and thus flawed, result. However, it appears valid and is likely the result of attempts to balance reproductive effort with self-maintenance over long time periods