Intercomparison of cloud properties in DYAMOND simulations over the Atlantic Ocean

We intercompared the cloud properties of the DYnamics of the Atmospheric general circulation Modeled On Non-hydrostatic Domains (DYAMOND) simulation output over the Atlantic Ocean. The domain averaged outgoing longwave radiation (OLR) is relatively similar across the models, but the net shortwave radiation at the top of the atmosphere (NSR) shows large differences among the models. The models capture the triple modes of cloud systems corresponding to shallow, congestus, and high clouds, although their partition in these three categories is strongly model dependent. The simulated height of the shallow and congestus peaks is more robust than the peak of high clouds, whereas cloud water content exhibits larger intermodel differences than does cloud ice content. Furthermore, we investigated the resolution dependency of the vertical profiles of clouds for NICAM (Nonhydrostatic ICosahedral Atmospheric Model), ICON (Icosahedral Nonhydrostatic), and IFS (Integrated Forecasting System). We found that the averaged mixing ratio of ice clouds consistently increased with finer grid spacing. Such a consistent signal is not apparent for the mixing ratio of liquid clouds for shallow and congestus clouds. The impact of the grid spacing on OLR is smaller than on NSR and also much smaller than the intermodel differences

Librarian Engagement and Social Justice in Publishing

Countless studies and personal narratives have demonstrated that cultural, racial, and gender bias influence important aspects of academia, including in traditional book and journal publishing. Scholarly communications and LIS publishing can challenge the traditional modes of publishing both in format and content. Presenters will discuss their work in this area, addressing topics like race, culture, sexuality, and gender in formats like print books, online journals, and institutional repositories. Presenters will also talk about how to talk to faculty and graduate students about the entire scholarly communication lifecycle, and how they can intervene to circumvent cultural bias and injustice

Minimizing the diagnosis of “follicular lesion of undetermined significance” and identifying predictive features for neoplasia

We used proposed standard morphologic criteria as a guideline to conduct a 10‐year retrospective review of thyroid fine‐needle aspiration specimens that were originally interpreted as “follicular lesion of undetermined significance” and followed by surgical intervention. We sought to investigate whether the indeterminate diagnosis could be minimized by assessing various cytomorphologic features and identifying the features predictive of neoplasia. Using the standard morphologic criteria, we semi‐quantitatively assessed a total of 24 cytomorphologic features in 123 aspirates and recorded an overall interpretation on completion of the review. Cyto‐histologic correlation was evaluated and logistic regression model was performed to identify cytomorphologic features predictive of neoplasia. Although 32 of 123 aspirates remained in the indeterminate category, the retrospective review reclassified 64 aspirates as non‐neoplasia and 27 aspirates as neoplasia. Histologic confirmation was achieved in 47 (73.4%) non‐neoplastic and 15 (55.6%) neoplastic aspirates with a diagnostic accuracy of 68.1%. Furthermore, our analysis demonstrated that neoplasia is positively associated with the presence of syncytial tissue fragments, isolated microfollicles, follicles with scalloped borders, scant cytoplasm, irregular nuclear membranes, nuclear overlapping, coarse chromatin, and increased cellularity. On the contrary, the presence of honeycombing tissue fragments, background colloid, and histiocytes inversely correlated with neoplasia. Overall, using proposed standard morphological criteria can minimize the diagnosis of “follicular lesion of undetermined significance,” and allow for more accurate cyto‐histologic correlation, and thereby playing a substantial role in reducing unnecessary surgical intervention. Diagn. Cytopathol. 2010. © 2010 Wiley‐Liss, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87071/1/21459_ftp.pd

The Hamiltonian boundary term and quasi-local energy flux

The Hamiltonian for a gravitating region includes a boundary term which determines not only the quasi-local values but also, via the boundary variation principle, the boundary conditions. Using our covariant Hamiltonian formalism, we found four particular quasi-local energy-momentum boundary term expressions; each corresponds to a physically distinct and geometrically clear boundary condition. Here, from a consideration of the asymptotics, we show how a fundamental Hamiltonian identity naturally leads to the associated quasi-local energy flux expressions. For electromagnetism one of the four is distinguished: the only one which is gauge invariant; it gives the familiar energy density and Poynting flux. For Einstein's general relativity two different boundary condition choices correspond to quasi-local expressions which asymptotically give the ADM energy, the Trautman-Bondi energy and, moreover, an associated energy flux (both outgoing and incoming). Again there is a distinguished expression: the one which is covariant.Comment: 12 pages, no figures, revtex

Pemodelan Lahan Basah Potensial Berdasarkan Indeks Topografi di Bretagne, Prancis

Wetlands represent an important natural resource which supports natural biodiversity. In France, in mentioned wetlands, it called potential wetlands, which have potential in its use.Topography and geomorphology play a major role for the development of wetlands and are decisive factors for modeling wetlands extension.The importance of identifying wetlands, can be used as a basis for determining the development priorities that will be based on technical and socioeconomic aspects The objective of this research was to predict the spatial extent of potential wetlands in Brittany, France from a topographic index calibrated on a set of 10 detailed soil maps. In identifying potential wetlands, it based on soil hydromorphwhich conducted by method 4 criteria. The following four stages of analysis were respectively categorized: (a) identification hidromorphy, (b) calculation topographic index, (c) calculation of threshold, (d) validation.A threshold method was conducted between soil maps and topographic index to indicate the similarity condition. We use for threshold and validation a new way using 120 combination of soil maps. The result oftopographic index was 4.7 and it was applied for all Brittany