542,665 research outputs found
Personal Papers (MS 80-0002)
No full textLetter from I. H. Kempner to Lu-Tex Products, Inc. discussing the lack of reply to his previous inquiry and asking about turkeys to be shipped to him
Hyphocapnodia Z. H. Lu & Maharachch. 2022, gen. nov.
No full textHyphocapnodia Z. H. Lu & Maharachch., gen. nov. MycoBank number: MB 845348 Etymology: The name reflects the hyphomycetous morph phylogenetically related to Capnodium Saprobic on living and decaying branches. Sexual morph: not observed. Asexual morph: on the natural substrate, colonies effuse, hairy, black. Mycelium immersed and superficial, forming dark brown conidiomata. Conidiomata synnematous, erect, subcylindrical, dark brown to black, with conidiogenous cells distributed mostly laterally, mainly towards the upper half of the synnemata. Conidiophores macronematous, simple, dark brown. Conidiogenous cells monoblastic, cylindrical, integrated, determinate, and smooth. Conidia subcylindrical to fusiform, brown, transversely septate, conidial secession schizolytic. Type species: Hyphocapnodia sichuanensis Z. H. Lu, Wanas., Madrid & Maharachch., sp. nov.Published as part of Lu, Zheng-Hua, Wanasinghe, Dhanushka N., Madrid, Hugo & Maharachchikumbura, Sajeewa S. N., 2022, Hyphocapnodia sichuanensis gen. et sp. nov. (Capnodiaceae), a novel hyphomycete from Sichuan Province, China, pp. 84-94 in Phytotaxa 564 (1) on page 90, DOI: 10.11646/phytotaxa.564.1.6, http://zenodo.org/record/707786
Personal Papers (MS 80-0002)
No full textLetter from I. H. Kempner to Lu-Tex Products, Inc. discussing turkeys to be shipped to Kempner. Kempner also mentions that the previous turkeys sent were not of usual quality
ACA inhibited cell viability of A549 and SK-LU-1 cell lines.
No full text(A) Chemical structure of 1’S-1’-acetoxychavicol acetate (ACA). (B) The cell viability of MCF 10A, A549 and SK-LU-1 cells lines after exposure to ACA (0–30 μM) for 24 h was assessed using MTT assay. Data represented as mean percentage of cell viability ± SD for three independent experiments. (C) The cell viability of A549 and SK-LU-1 cells lines after exposure to IC50 of ACA (25 μM for SK-LU-1 and 30 μM for A549 cells) on respective cell lines for 0–24 h was assessed using MTT assay. Data represented as mean percentage of cell viability ± SD for three independent experiments. * p p < 0.01 statistically different in comparison to 0 h (D) Representative photomicrograph (200 × magnification) of A549 and SK-LU-1 cell lines upon ACA treatment. Arrow indicates the cytoplasmic vacuole.</p
Lu-H-N phase diagram from first-principles calculations
Get PDFUsing a comprehensive structure search and high-throughput first-principles
calculations of 1483 compounds, this study presents the phase diagram of
Lu-H-N. The formation energy landscape of Lu-H-N was derived and utilized to
assess the thermodynamic stability of compounds. Results indicate that there
are no stable Lu-H-N ternary structures in this system, but metastable ternary
structures, such as Lu20H2N17 (C2/m), Lu2H2N (P3-m1), were observed with small
Ehull (< 100 meV/atom). Moreover, applying hydrostatic pressure up to 10 GPa
causes the energy convex hull of the Lu-H-N to shift its shape and stabilizes
binary phases such as LuN9 and Lu10H21. Additionally, interstitial empty sites
in LuH2 were noted, which may explain the formation of Lu10H21 and LuH3-xNy. To
provide a basis for comparison, X-ray diffraction patterns and electronic
structures of some compounds are also presented
Flaviata Lu & Qin 2014
No full textFlaviata Lu & Qin, 2014 Type species: Flaviata variata Lu & Qin in Qin et al. 2014: 1506, by original designation. For detailed generic diagnosis see Xu et al., 2015. Distribution. Southern China (Sichuan, Zhejiang, Yunnan, Guizhou).Published as part of Xu, Ye, Lu, Sihan, Dietrich, Christopher H. & Qin, Daozheng, 2018, Descriptions of two new leafhopper species of the genus Flaviata Lu & Qin (Hemiptera, Cicadellidae, Typhlocybinae) from Southern China, with a key to known species, pp. 577-582 in Zootaxa 4457 (4) on page 578, DOI: 10.11646/zootaxa.4457.4.7, http://zenodo.org/record/145807
The separate production of H(2)S from the thermal reaction of hydrocarbons with magnesium sulfate and sulfur: Implications for thermal sulfate reduction
No full textThe yields and stable C and H isotopic composition of gaseous products from the reactions of pure n-C 24 with (1) MgSO 4; and (2) elemental S in sealed Au-tubes at a series of temperatures over the range 220-600°C were monitored to better resolve the reaction mechanisms. Hydrogen sulfide formation from thermochemical sulfate reduction (TSR) of n-C 24 with MgSO 4 was initiated at 431°C, coincident with the evolution of C 2-C 5 hydrocarbons. Whereas the yields of H 2S increased progressively with pyrolysis temperature, the hydrocarbon yields decreased sharply above 490°C due to subsequent S consumption. Ethane and propane were initially very 13C depleted, but became progressively heavier with pyrolysis temperature and were more 13C enriched than the values of a control treatment conducted on just n-C 24 above 475°C. TSR of MgSO 4 also led to progressively higher concentrations of CO 2 showing relatively low d 13C values, possibly due to input of isotopically light CO 2 derived from gaseous hydrocarbon oxidation (e.g., more depleted CH 4).Sulfur reacted with n-C 24 to produce H 2S at the relatively low temperature of 250°C, the H 2S profile of the S treatment showed a consistent increase from 280°C after a sharp increase at 250°C, implicating S-hydrocarbon reactions as a potentially important source of subsurface H 2S accumulations. Sulfur produced only low amounts of CO 2 to 430°C, indicating that abstraction of the H source for H 2S occurred in the absence of C-C bond cleavages of the n-C 24 reactant. Higher yields of 13C depleted CO 2-S also showing a reactive preference for 12C bonds-and low MW hydrocarbons were evident from 431°C, although a moderate reduction (i.e., not as rapid as MgSO 4-TSR) of hydrocarbon levels and increase in d 13C values above 490°C was attributed to their direct S reaction. This demonstrates that S, as has previously been established for MgSO 4-TSR, has a reactive preference for hydrocarbons of high MW. The reaction of low MW hydrocarbons with the S reactant (i.e., S) or the S produced by SO 4 oxidation (i.e., MgSO 4), may also account for the elemental S (S 8, S 7, S 6 and S 4) and organic S products detected in the solvent extracted residue of both treatments. Field translation and validation of the molecular and stable isotopic trends identified in this laboratory study should help to resolve the relative contributions of different sources and competing processes to subsurface accumulations of H 2S. © 2011 Elsevier Ltd
Domain decomposition based H-LU preconditioning
No full textHierarchical matrices provide a data-sparse way to approximate fully populated matrices. The two basic steps in the construction of an H-matrix are (a) the hierarchical construction of a matrix block partition, and (b) the blockwise approximation of matrix data by low rank matrices. In this paper, we develop a new approach to construct the necessary partition based on domain decomposition. Compared to standard geometric bisection based H-matrices, this new approach yields H-LU factorizations of finite element stiffness matrices with significantly improved storage and computational complexity requirements. These rigorously proven and numerically verified improvements result from an H-matrix block structure which is naturally suited for parallelization and in which large subblocks of the stiffness matrix remain zero in an LU factorization. We provide numerical results in which a domain decomposition based H-LU factorization is used as a preconditioner in the iterative solution of the discrete (three-dimensional) convection-diffusion equation
Personal Papers (MS 80-0002)
No full textLetter from I. H. Kempner to Lu-Tex Products, Inc. informing the company that he bought turkeys elsewhere due to the delayed response
Personal Papers (MS 80-0002)
No full textLetter from I. H. Kempner to Lu-Tex Products, Inc. requesting a few turkeys because the ones sold in Galveston are too small for a large family
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