a new image of the hematopoietic stem cell vascular niche

... extracellular matrix, it seems more likely that the SEA domain functions by orienting the active site cleft of DESC1 toward plasma and ⁄ or extracellular spaces and away from the cell surface and ⁄ or the ... ADAMs, membrane-type matrix metalloproteinases and the urokinase-type plasminogen activator (uPA) ⁄ uPA-receptor system. Gene expression analysis between squamous cell carcinoma of the head and ... 473–483. 17 Kataoka H, Uchino H, Asada Y, Hatakeyama K, Nabeshima K, Sumiyoshi A & Koono M (1997) Analy- sis of tissue factor and tissue factor pathway inhibitor expression in human colorectal carcinoma...

Ngày tải lên: 19/02/2014, 00:20

... techniques to transform framed VOAs into other framed VOAs. An advantage of our ways is that we can construct many framed VOAs from smaller pieces. As basic pieces, we will use a rational Virasoro VOA L( 1 2 , ... (W (α+β,α+β) ) 1 as a Cartan subalgebra and embedding it in a lattice VOA V A ⊕8 1 of the root lattice A ⊕8 1 , we are able to denote the positive roots by ι(y 1 ), ··· ,ι(y 8 ) and the negative roots ... Virasoro element ω. Such a VOA V is called a framed VOA” in [DGH] and we will call the set {e 1 , ,e n } of conformal vectors a coordinate set.” We note that a VOA V of rank n 2 is a framed...

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Ngày tải lên: 13/08/2014, 16:20

... level of trust, extent of role specialization, level of coordination or manage- ment, and level of feedback and information avail- able. When certain levels are reached among these variables, new ... Frame Mechanisms for Management and Coordination If structure frames the range of relationships among actors and processes in a system, then rules frame the scope of how they interact with each ... reflect transition points in the status of resources, organizational systems, and in the behav- iors of actors within systems. Thresholds can act as triggers and valves that set cooperative behavior...

Ngày tải lên: 18/02/2014, 00:20

... alpha- sarcin: a study of relationships. Meth Enzymol 341, 335–351. 3 Lacadena J, A ´ lvarez-Garcı ´ a E, Carreras-Sangra N, Herrero-Gala ´ n E, Alegre-Cebollada J, Garcı ´ a- Ortega L, On ˜ aderra ... in HtA replaces a tyrosine of a- sarcin, and the aromatic ring of F126, close to the catalytic H113, replaces a leucine side chain in a- sarcin in a similar arrangement to that found in RNase T1. ... were analyzed in a semi-automated iterative manner by cyana 2.1 [38]. The NOE coordinates and intensities used as input for automated analysis were generated auto- matically by Sparky based on the...

Ngày tải lên: 18/02/2014, 08:20

... Distortion of the Na + pump At the cellular level, a broad range of studies have indicated that the Na + pump or Na + ⁄ K + -ATPase is the higher-affinity cellular receptor for palytoxin [9,10]. This ... cells because of the intracellular Na + influx and membrane depolarization; and (c) an as yet unidentified pathway that is independent of changes in membrane potential or changes in pH [9]. The actin ... For a long time, it was believed that the role of this system was mainly structural, providing the sup- port needed to maintain the shape and organization of the cell and the scaffolding for the...

Ngày tải lên: 18/02/2014, 14:20

... which precipitated after demineralization of the nacreous layer with hydrochloric acid [61]. The characterization of the proteins associated to this complex by amino acid analysis of the precipitate after ... organic matrix in the nacreous layer of the bivalve Pinctada maxima A new insight in the biomineralization field Lucilia Pereira-Mourie ` s 1 , Maria-Jose ´ Almeida 1,3 , Cristina Ribeiro 3 , Jean ... matrix, the EDTA-soluble matrix and the EDTA- insoluble matrix of Pinctada maxima nacre. Results are expressed as a mole percent and represent the mean of at least three independent determinations....

Ngày tải lên: 21/02/2014, 01:21

... OFFUTT, Program Officer SUSANNA CLARENDON, Financial Associate PANOLA GOLSON, Project Assistant ANA-MARIA IGNAT, Project Assistant SHANNA LIBERMAN, Project Assistant 1 NAE = National Academy of Engineering ... The Pacific Northwest National Laboratory, Lawrence Livermore National Laboratory, Lawrence Berkeley National Laboratory, Sandia National Laboratories, Los Alamos National Laboratory, National ... analysis of the particulates indicated that the plasma was also effective in reducing the polycyclic aromatic content of the particulate matter. Such charac- teristics of the particulate matter are...

Ngày tải lên: 06/03/2014, 15:20

... Most of it is directed to Canada, Aus- tralia, Britain and Mexico, with Canada receiving 81% of the total. The Monitor Company (1999) estimates that the total dollar loss to the US as a result of economic ... the majors to divest themselves of their extensive 4. The proliferation of new markets based on the theatre (cinema) chains 2 (see CASSADY, 1958), and packaging and repackaging of intellectual ... been the arena of many and The basic argument set forth by these two authors perplexing transformations over the last few decades. revolves around the transformation of the classical In addition...

Ngày tải lên: 07/03/2014, 15:20

... However, the centralized character of management and the lack of external accountability do not require systematic use and in-depth analysis of such data. The transformation of HSE into a research-intensive ... universities. In the 1990s, the average age of lecturers was 33 years, and the average age of HSE managers was 36 years. Today, the average age of HSE lecturers is 43 years, which makes HSE the “youngest” ... salary of a professor at an average Russian university was US$50, and the monthly salary of a pro- fessor at the major universities was US$100–120. This salary was much lower than a starting salary...

Ngày tải lên: 08/03/2014, 06:20

... independent of each other and independent of the true variable, the correlation between responses gives an estimate of the "reliability ratio" (the ratio of the variance of the signal to the ... National Affairs. Daily Labor Re- port. Washington, DC: Bureau of Na- tional Affairs, 5 May 1990. . Labor Relations Reporter Wages and Hours Manual. Washington, DC: Bureau of National Affairs, ... store i, and NJ, is a dummy variable that equals 1 for stores in New Jersey. GAP, is an alternative measure of the impact of the minimum wage at store i based on the initial wage at that store...

Ngày tải lên: 08/03/2014, 06:20

... give an illustration of the behavior of the morphological and syntactic parsers on a more complicated example: Ngarrka-ngku.ka marlu marna-kurra luwa.rnu ngarni.nja-kurra (man-ergative-aux kangaroo ... namely prosody and the non- isomorphism of syntactic and phonological structure. We maintain that these are are central to the task of a morphological analyzer and, hence, have incorporated ... phonologically an affix is syntactically a separate word n this is the case with cliticization. Also exemplary of the division of duty between the morphophonological parser and the syntactic parser...

Ngày tải lên: 08/03/2014, 18:20

... projects. A partial implementation of the grammat- ical stratum of organisation found in Systemic Func- tional Grammar (SFG) provides the core of Penman's linguistic capabilities (Mann and Matthiessen, ... are taxonomic. These relate particular instances of what is to be expressed to the categories of semantic organisation that the grammar's seman- tics requires. These categories, and the ... for an acceptable trans- lation. Because the prepositional phrase is a modifier of the main process (indicated by the role feature and the fact that the main process and the modifier are siblings...

Ngày tải lên: 09/03/2014, 01:20