نتایج جستجو برای: 456 first

تعداد نتایج: 1442501  

2016
Andrew Rylance Anna Spenceley

Inclusive business is described as private sector-led business initiatives that aim to profi tably engage low-income populations across productive value chains. Th is paper aims to quantify the impact of businesses implementing inclusive business strategies to determine the value to local communities as well as the tourism business. Th e research reviews the direct impact of the business on com...

Journal: :Astronomische Nachrichten 1900

Journal: :The Journal of biological chemistry 2000
P M Palenchar C J Buck H Cheng T J Larson E G Mueller

ThiI is an enzyme common to the biosynthetic pathways leading to both thiamin and 4-thiouridine in tRNA. Comparison of the ThiI sequence with protein sequences in the data bases revealed that the Escherichia coli enzyme contains a C-terminal extension displaying sequence similarity to the sulfurtransferase rhodanese. Cys-456 of ThiI aligns with the active site cysteine residue of rhodanese that...

1999
PETER J. CHANDLER

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451 Study area . . . . . . . . . . . . . . ....

Journal: :Annual review of biophysics and biophysical chemistry 1987
W Bialek

FOUNDATIONS ................................................................................................................ 456 Signals and Noise, Detectability and Discriminability ............................................... 456 Noise from Classical Statistical Mechanics ............................................................... 459 Noise from Quantum Mechanics .........................

Journal: :Cancer research 1995
S N Kurpad H S Friedman G E Archer R E McLendon W M Petros H E Fuchs A Guaspari D D Bigner

Malignant gliomas will affect 15,000-17,000 Americans each year and carry a dismal prognosis. Adjuvant chemotherapy is hampered by inadequate drug delivery, systemic toxicity, and a markedly variable biological sensitivity. Intraarterial (i.a.) therapy may enhance selectivity by improving tumor drug delivery and reducing systemic toxicity. Using melphalan given i.a., we studied the therapy of i...

1999
Torben M. Andersen

International Integration, Risk and the Welfare State How does international integration affect the welfare state? Does it call for a leaner or an expanded welfare state? International integration may affect the distortions caused by welfare state activities but also the risks motivating social insurance mechanisms. This paper addresses these potentially counteracting effects in a fully specifi...

Journal: :Beiträge zur Geschichte der deutschen Sprache und Literatur (PBB) 1906

2003
J. N. Reeves P. T. O’Brien M. J. Ward

We report on XMM-Newton spectroscopic observations of the luminous radio-quiet quasar PDS 456. The hard X-ray spectrum of PDS 456 shows a deep absorption trough (constituting 50% of the continuum) at energies above 7 keV in the quasar rest frame, which can be attributed to a series of blueshifted K-shell absorption edges due to highly ionized iron. The higher resolution soft X-ray Reflection Gr...

Journal: :The Journal of biological chemistry 2007
Elizabeth M Kass Jinwoo Ahn Tomoaki Tanaka William A Freed-Pastor Susan Keezer Carol Prives

Checkpoint kinase 2 (Chk2), a DNA damage-activated protein kinase, is phosphorylated at Thr-68 by ataxia telangiectasia mutated leading to its activation by phosphorylation at several additional sites. Using mass spectrometry we identified a new Chk2 phosphorylation site at Ser-456. We show that phosphorylation of Ser-456 plays a role in the regulation of Chk2 stability particularly after DNA d...

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