593 research outputs found
Higher Order mz-elements in Coherent Quantales
No full textThe mz-elements of a coherent quantale have recently been defined by the author as an abstraction of the mz-ideals of a unital commutative ring.
Having as its starting point the Dube and Ighedo recent paper on higher order ideals in ring theory, this paper deals with the higher order mz-elements of a coherent quantale A. For each natural number n we define the mz^n-elements of A, so we obtain an ascending sequence that covers the set of all higher order mz-elements. We obtain a lot of properties of this sequence. In particular, the stationarity of the sequence is studied. Another category of results investigates how the coherent quantale morphisms preserve such properties
Comment on “Stress boundary conditions for plate bending” by F.Y.M. Wan [Int. J. Solids Struct. 40 (2003) 4107–4123]
No full textAbstractBy using the reciprocal theorem of elasticity, the author obtained the appropriate stress boundary conditions for the Levy solution for plate bending accurate to all order for plates of general edge geometry and loading. Two special cases of k=0 (axisymmetric deformation of a circular plate) and k⩾2 (unsymmetric deformation of a circular plate) were discussed in detail in the paper
α1-antitrypsin protease inhibitor MZ heterozygosity is associated with airflow obstruction in two large cohorts
No full textBackground: Severe α1 -antitrypsin deficiency is a known genetic risk factor for COPD. Heterozygous (protease inhibitor [PI] MZ) individuals have moderately reduced serum levels of α1- antitrypsin, but whether they have an increased risk of COPD is uncertain. Methods: We compared PI MZ and PI MM individuals in two large populations: a case-control study from Norway (n = 1,669) and a multicenter family-based study from Europe and North America (n = 2,707). We sought to determine whether PI MZ was associated with the specific COPD-related phenotypes of lung function and quantitative CT scan measurements of emphysema and airway disease. Results: PI MZ was associated with a 3.5% lower FEV1/FVC ratio in the case-control study (P =.035) and 3.9% lower FEV1/vital capacity (VC) ratio in the family study(P =.009). In the case-control study, PI MZ also was associated with 3.7% more emphysema on quantitative analysis of chest CT scans(P =.003). The emphysema result was not replicated in the family study. PI MZ was not associated with airway wall thickness or COPD status in either population. Among subjects with low smoking exposure (<20 pack-years), PI MZ individuals had more severe emphysema on chest CT scan than PI MM individuals in both studies. Conclusions: Compared with PI MM individuals, PI MZ heterozygotes had lower FEV1/(F)VC ratio in two independent studies. Our results suggest that PI MZ individuals may be slightly more susceptible to the development of airflow obstruction than PI MM individuals. © 2010 American College of Chest Physicians
A spectroscopic study of the bipolar planetary nebula Mz 3
No full textWe have obtained a medium-resolution, deep optical long-slit spectrum of the bipolar planetary nebula Mz 3. The spectrum covers the wavelength range 3420-7400 Å. Over 200 emission lines have been detected, many of them permitted and forbidden transitions from Fe +, Fe 2+ and Fe 3+ and other iron-group elements. The spectra have been used to determine nebular thermal and density structures and elemental abundances. The very rich and prominent [Fe III] emission lines observed in the optical spectrum of Mz 3 are found to originate exclusively from an unresolved emission region centred on the central star. The relative intensities of [Fe III] lines arising from the same upper level are in good agreement with the theoretical predictions. The [Fe III] lines detected in Mz 3, arising from levels of different excitation energies and critical densities, provide powerful diagnostic tools to probe the physical conditions in the central emitting region. We find that all the observed [Fe III] diagnostic line ratios consistently yield an electron temperature of T e = 11 000 K and a density of log N e(cm -3) = 6.5. The latter value is close to the densities where the ratios of these [Fe III] diagnostic lines are most sensitive to density variations, suggesting that the density in the central emission core could be even higher. In contrast, all the other standard nebular density- and temperature-diagnostic line ratios, all of lower critical densities than the [Fe III] lines and therefore only useful at densities ≤ 10 6 cm -3, yield consistently lower electron densities, with the resultant values correlating with their critical densities. This indicates that the central dense emission core has a highly stratified density structure such that forbidden lines of relatively low critical densities are collisionally suppressed in high-density regions. Given the highly stratified thermal and density structures of the core emission region, no reliable elemental abundances can be determined for this region, except possibly for iron, for which we find an abundance of approximately half the solar value. In contrast to the dense central core, emission from the extended bipolar lobes of Mz 3 are well represented by a mean electron temperature of 6800 K and density of 5200 cm -3. The elemental abundances derived for this region, on a logarithmic scale where H = 12, are He = 10.93, C = 8.41, N = 8.37, O = 8.50, Ne = 7.64, S = 7.15, Cl = 5.28 and Ar = 7.14. In all cases, the abundances are close to the average values deduced for Galactic planetary nebulae. In particular, there is no evidence of He enrichment, as claimed in previous studies. The newly derived heavy-element abundances are significantly higher than those published in the literature. In those earlier studies, as a result of the contamination of emission from the dense central core, the average electron temperature in Mz 3 was significantly overestimated, resulting in grossly underestimated heavy-element abundances. However, Mz 3 does seem to have a relatively high N/O abundance ratio, in line with the result derived from the ISO observations of the far-infrared fine-structure lines.link_to_OA_fulltex
Zuckerberg Facebook post and photo about Vanity Fair Summit: The Future of VR, AI, Connectivity
No full textRecapping conversation regarding AI, VR, and connectivity held between MZ, Michael Abrash (chief scientist @ Oculus) and Steven Levy at the Vanity Fair Summit
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Functional Analysis of Human and Mouse Splenic B cells
No full textT-cell independent (TI) antibodies may be critical in closing the gap between early innate and late adaptive immune responses against bacterial pathogens. In the mouse, innate marginal zone (MZ) B cells rapidly produce these antibodies. In humans, the characterization of a MZ B cell equivalent to that of mice is controversial because of phenotypic differences between the two species. Studies suggest that TLR activation upregulate BAFF receptors, TACI and BR3 in mouse splenic B. Upregulation of BAFF receptors is important because the ligands for these receptors, BAFF and APRIL, are critical in the regulation of humoral immune responses and immunoglobulin (Ig) isotype class switching in the context of TI antigens. By comparison of human splenic MZ B cells (MZ) with their well characterized mouse counterparts we investigated a role for innate TLRs and BAFF receptors (BR3 and TACI) in TI antibody responses. I show in this dissertation that among splenic B cells, the bulk of TI antibodies are produced by MZ B cells relative to follicular I and II B cells (FOBI and FOBII) both in human and mouse. Although MZ B cells were most responsive to TLR stimulation in both species, they differed qualitatively in the regulation of BAFF receptors. Human MZ B cells increased TACI, but not BR3. Once the TACI was increased, human MZ B cells produced more IgM and switched to IgA and to a lesser extent to IgG1 in the presence of BAFF or APRIL. Bruton’s tyrosine kinase (Btk) was found to be required to mediate TLR signaling that enhanced expression of antibody regulators, TACI and an atypical IκB, NF-κBid. Together these results suggest that like mouse, human splenic MZ B cells are the major responders to TLR ligand containing TI antigens and require Btk signaling for these TLR driven TI antibody responses.</p
The arithmetic mean theorem of eshelby tensor for a rotational symmetrical inclusion
No full textIn 1997, H. Nozaki and M. Taya found numerically that for any regular polygonal inclusion except for a square, both the Eshelby tensor at the center and the average Eshelby tensor over the inclusion domain are equal to the Eshelby tensor for a circular inclusion and independent of the orientation of the inclusion. Then in 2001, these remarkable properties were mathematically justified by Kawashita and Nozaki. In this paper, a more radical property is presented for a rotational symmetrical inclusion: For any N-fold (N is an integer greater than 2 and unequal to 4) rotational symmetrical inclusion, the arithmetic mean of the Eshelby tensors at N rotational symmetrical points in the inclusion is the same as the Eshelby tensor for a circular inclusion and independent of the orientation of the inclusion. It follows that the Eshelby tensor at the center and the average Eshelby tensor over the rotational symmetrical inclusion domain are identical to the Eshelby tensor for a circular inclusion and independent of the orientation of the inclusion as well. This paper shows that although the Eshelby property does not hold for non-ellipsoidal inclusions, the Eshelby tensor for a rotational symmetrical inclusion satisfies the arithmetic mean property.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000229972600002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, MultidisciplinaryMaterials Science, MultidisciplinaryMechanicsSCI(E)EI22ARTICLE113-237
A GENERALIZATION OF ALMANSI THEOREM AND ITS APPLICATION
No full textEngineering, MultidisciplinaryMathematics, Interdisciplinary ApplicationsMechanicsSCI(E)9ARTICLE5275-2791
John Wesley and Methodist music in the eighteenth century : principles and practice
No full textEThOS - Electronic Theses Online ServiceGBUnited Kingdo
Exegetical and theological analysis of Leviticus 26:3-13
No full textV diplomskem seminarskem delu z naslovom Eksegetska in teološka analiza blagoslovov v 3 Mz 26,3-13 avtor predstavlja blagoslove v 3 Mz 26,3-13. Avtor delo deli v štiri poglavja. V prvem poglavju skuša razložiti nekatere bistvene značilnosti odlomka, pri čemer ugotovi, da je odlomek del Božjega govora po svetostni postavi, odlomek pa časovno umesti v obdobje po izgnanstvu. V drugem poglavju odlomek eksegetsko razloži in pri tem ugotavlja primernost delitve 3 Mz 26,4-12 v štiri dele. V tretjem poglavju s pomočjo predstavitve značilnosti vzporednega odlomka 5 Mz 28,1-14 osvetljuje nekatere bistvene značilnosti 3 Mz 26,3-13. Avtor ob tem poudarja, da se oba odlomka o blagoslovih nahajata po postavi: 3 Mz 26 po svetostni postavi, 5 Mz 28 pa po devteronomični. Izpostavi dvoje: da sta govornika v odlomkih različna ter da je v prvem odlomku izraelsko ljudstvo naslovljeno v drugi osebi množine, v drugem pa v drugi osebi ednine. Avtor ob tem poudari, da je za 5 Mz značilna uporaba merizma, s katero se želi poudariti blagoslovljenost Izraela tako v mestu kot na polju, torej povsod. V zadnjem poglavju avtor išče vzporednice 3 Mz 26,3-13 z Novo zavezo in današnjim časom. Ob povezavi z Novo zavezo izpostavi razliko in razmerje med blagoslovi in blagri ter izpostavi odlomka 2 Kor 6,16 in Raz 21,3, kjer je zaslediti citata iz 3 Mz 26. Ob povezavi z današnjim dnem ugotavlja, da je blagoslova deležno vse človeštvo.The aim of the present diploma thesis with the title Exegetical and theological analysis of Leviticus 26:3-13 is to present the blessings in the verse Lev 26:3-13. The author has divided the contents of the thesis into four chapters. The first chapter is an attempt to explain some key features of the verse, where the author concludes that it represents part of God’s speech that is given after the end of the Holiness Code after the Exile Israel. In the second chapter, the author attempts to explain the verse exegetically and discusses the relevance of the division of Lev 26:4-12 into four parts. With the help of the explanation of the features of the parallel verse Deut 28:1-14, the author aims to illuminate some key features of Lev 26:3-13. The author concludes that both chapters about blessings are included at the end of sections about two codes: Lev 26 comes at the end of the Holiness Code and Deut 28 at the end of the Deuteronomic Code. The author also concludes that the speakers in both verses are not the same, and notes that in Lev 26:3-13 the Israel is addressed in the second person plural, whereas in Deut 28:1-14 they are addressed as the second person singular. The author points to the use of merism in Deut 28, which emphasises the blessing of Israel in both the city and in the field, and thus everywhere. In the last chapter, the author searches for parallels between Lev 26:3-13, the New Testament and the present time. In the New Testament the difference and relation between the blessings and beatitudes are highlighted, while the author notes 2 Cor 6:16 and Rev 21:3 as passages where references to Lev 26 can be found. In connection with the present day, the author establishes that the whole of mankind is now blessed
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