Works (44)

Updated: July 5th, 2023 16:04

2008 journal article

Titanium Interlayer Mediated Epitaxy of CoSi2 on Si1-xGex

THIN SOLID FILMS, 516(8), 1809–1817.

By: J. Burnette*, S. Kiesel*, D. Sayers* & R. Nemanich*

author keywords: CoSi2; Si1-xGex; epitaxy; Ti interlayer; TIME process; XANES; XRD; pinhole formation
Source: Web Of Science
Added: August 6, 2018

2006 review

Combining solid state physics concepts and X-ray absorption Spectroscopy to understand DeNO(x) catalysis

[Review of ]. Oil & Gas Science and Technology, 61(5), 677–689.

By: D. Bazin, D. Sayers, J. Lynch, L. Guczi, G. Treglia & C. Mottet

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Diffraction enhanced imaging of controlled defects within bone, including bone-metal gaps

Physics in Medicine & Biology, 51(12), 3283–3300.

By: D. Connor, D. Sayers, D. Sumner & Z. Zhong

Source: NC State University Libraries
Added: August 6, 2018

2005 journal article

Formation of stable titanium germanosilicide thin films on Si1-xGex

JOURNAL OF APPLIED PHYSICS, 97(11).

By: J. Burnette n, R. Nemanich n & D. Sayers n

Source: Web Of Science
Added: August 6, 2018

2005 article

Identification of fatigue damage in cortical bone by diffraction enhanced imaging

Connor, D. M., Sayers, D., Sumner, D. R., & Zhong, Z. (2005, August 11). NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol. 548, pp. 234–239.

By: D. Connor*, D. Sayers*, D. Sumner & Z. Zhong

author keywords: Diffraction Enhanced Imaging; Darwin width; fatigue damage; microfracture; rocking curve
UN Sustainable Development Goal Categories
5. Gender Equality (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Improved image contrast of calcifications in breast tissue specimens using diffraction enhanced imaging

Physics in Medicine & Biology, 49(15), 3427–3439.

By: M. Kiss, D. Sayers, Z. Zhong, C. Parham & E. Pisano

Source: NC State University Libraries
Added: August 6, 2018

2003 patent

Diffraction enhanced x-ray imaging of articular cartilage

Washington, DC: U.S. Patent and Trademark Office.

By: L. Chapman, M. Hasnah, O. Oltulu, Z. Zhong, J. Mollenhauer, K. C., A. K., P. M. ...

Source: NC State University Libraries
Added: August 6, 2018

2003 journal article

Measurement of image contrast using diffraction enhanced imaging

Physics in Medicine & Biology, 48(3), 325–340.

By: M. Kiss, D. Sayers & Z. Zhong

Source: NC State University Libraries
Added: August 6, 2018

2003 journal article

Speciation of phosphorus in phosphorus-enriched agricultural soils using X-ray absorption near-edge structure spectroscopy and chemical fractionation

JOURNAL OF ENVIRONMENTAL QUALITY, 32(5), 1809–1819.

By: S. Beauchemin*, D. Hesterberg n, J. Chou*, M. Beauchemin*, R. Simard* & D. Sayers n

MeSH headings : Adsorption; Agriculture; Chemistry Techniques, Analytical / methods; Environmental Monitoring / methods; Phosphates / analysis; Phosphates / chemistry; Phosphorus / analysis; Phosphorus / chemistry; Soil; Spectrometry, X-Ray Emission
TL;DR: X-ray absorption near-edge structure spectroscopy directly identified certain forms of soil P, while chemical fractionation provided indirect supporting data and gave insights on additional forms of P such as organic pools that were not accounted for by the XANES analyses. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2002 journal article

Comparison of X-ray detectors for a diffraction enhanced imaging system

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 491(1-2), 280–290.

By: M. Kiss*, D. Sayers* & Z. Zhong

author keywords: digital detector; image plate; CCD; point spread function; synchrotron; modulation transfer function; diffraction enhanced imaging
TL;DR: While all three systems had comparable image quality, the CCDs had faster readout time than the image plate system and the Fuji system had the largest dynamic range and the largest active area. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Diffraction enhanced imaging contrast mechanisms in breast cancer specimens

MEDICAL PHYSICS, 29(10), 2216–2221.

By: M. Hasnah*, Z. Zhong*, O. Oltulu*, E. Pisano*, R. Johnston*, D. Sayers n, W. Thomlinson*, D. Chapman*

author keywords: radiography; diffraction enhanced imaging; breast cancer; x-ray; contrast mechanisms
MeSH headings : Absorption; Algorithms; Biophysical Phenomena; Biophysics; Breast Neoplasms / diagnostic imaging; Breast Neoplasms / pathology; Carcinoma, Lobular / diagnostic imaging; Carcinoma, Lobular / pathology; Contrast Media / pharmacology; Female; Humans; Models, Statistical; Radiography / methods; Scattering, Radiation; Synchrotrons
TL;DR: The density difference of fibrils in breast cancer as measured by absorption images correlate well with the density difference derived from refraction angle images of DEI, and theDEI apparent absorption image and the image obtained with the DEI system at the top of the reflectivity curve have much greater contrast than that of the normal radiograph. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2002 journal article

TiC nanoisland formation on 6H-SiC(0001)(Si)

JOURNAL OF APPLIED PHYSICS, 91(9), 6081–6084.

By: W. Platow n, J. Oh n, R. Nemanich n, D. Sayers n, J. Hartman n & R. Davis n

UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Bonding of Hg(II) to reduced organic, sulfur in humic acid as affected by S/Hg ratio

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 35(13), 2741–2745.

By: D. Hesterberg n, J. Chou n, K. Hutchison n & D. Sayers n

Contributors: D. Hesterberg n, J. Chou n, K. Hutchison n & D. Sayers n

MeSH headings : Absorption; Chemical Phenomena; Chemistry, Physical; Humic Substances / chemistry; Ligands; Mercury / chemistry; Organic Chemicals; Soil Pollutants / analysis; Sulfur / chemistry; Water Pollutants, Chemical / analysis
TL;DR: Results demonstrated preferential bonding of Hg(II) to reduced organic S sites and indicated that multiple sulfur ligands were coordinated with Hg2+ ions at high S/Hg ratios, which corresponded to low levels of complexed Hg (II). (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2001 journal article

Electronic structure of noncrystalline transition metal silicate and aluminate alloys

APPLIED PHYSICS LETTERS, 79(12), 1775–1777.

By: G. Lucovsky n, G. Rayner n, D. Kang n, G. Appel n, R. Johnson n, Y. Zhang n, D. Sayers n, H. Ade n, J. Whitten n

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 journal article

Formation of chloropyromorphite in a lead-contaminated soil amended with hydroxyapatite

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 35(18), 3798–3803.

By: J. Ryan*, P. Zhang*, D. Hesterberg n, J. Chou n & D. Sayers n

Contributors: J. Ryan*, P. Zhang*, D. Hesterberg n, J. Chou n & D. Sayers n

MeSH headings : Absorptiometry, Photon; Chlorine Compounds / chemistry; Durapatite / chemistry; Lead / chemistry; Refuse Disposal; Soil Pollutants / analysis; X-Ray Diffraction
TL;DR: Extended X-ray absorption fine structure (EXAFS) spectroscopy indicated that after the 240-d incubation the hydroxyapatite treatment caused a change in the average, local molecular bonding environment of soil Pb, providing additional evidence that the change of land Pb to pyromorphite is possible by simple amendments of hydroxyAPatite to soil. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2001 journal article

Formation of cobalt disilicide films on (root 3 x root 3)6H-SiC(0001)

PHYSICAL REVIEW B, 63(11).

By: W. Platow n, D. Wood n, K. Tracy n, J. Burnette n, R. Nemanich n & D. Sayers n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Growth of epitaxial CoSi2 on 6H-SiC(0001)(Si)

JOURNAL OF APPLIED PHYSICS, 90(12), 5924–5927.

By: W. Platow n, R. Nemanich n, D. Sayers n, J. Hartman n & R. Davis n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Molecular scale characteristics of Cu(II) bonding in goethite-humate complexes

GEOCHIMICA ET COSMOCHIMICA ACTA, 65(9), 1355–1366.

By: T. Alcacio n, D. Hesterberg n, J. Chou n, J. Martin n, S. Beauchemin* & D. Sayers n

Contributors: T. Alcacio n, D. Hesterberg n, J. Chou n, J. Martin n, S. Beauchemin* & D. Sayers n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2001 article

XAFS studies of the formation of cobalt silicide on (root 3 x root 3) SiC(0001)

Platow, W., Wood, D. E., Burnette, J. E., Nemanich, R. J., & Sayers, D. E. (2001, March). JOURNAL OF SYNCHROTRON RADIATION, Vol. 8, pp. 475–477.

By: W. Platow n, D. Wood n, J. Burnette n, R. Nemanich n & D. Sayers n

author keywords: cobalt silicide; silicon carbide; metal-semiconductor contacts; molecular beam epitaxy
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Human breast cancer specimens: Diffraction-enhance imaging with histologic correlation - Improved conspicuity of lesion detail compared with digital radiography

RADIOLOGY, 214(3), 895–901.

By: E. Pisano, R. Johnston*, D. Chapman, J. Geradts, M. Iacocca, C. Livasy, D. Washburn, D. Sayers* ...

author keywords: breast radiography, technology; synchrotron
MeSH headings : Biopsy, Needle; Breast / pathology; Breast Neoplasms / diagnostic imaging; Breast Neoplasms / pathology; Carcinoma, Intraductal, Noninfiltrating / diagnostic imaging; Carcinoma, Intraductal, Noninfiltrating / pathology; Carcinoma, Lobular / diagnostic imaging; Carcinoma, Lobular / pathology; Female; Fibrocystic Breast Disease / diagnostic imaging; Fibrocystic Breast Disease / pathology; Humans; Image Processing, Computer-Assisted / instrumentation; Mammography / instrumentation; Radiographic Image Enhancement / instrumentation; Synchrotrons; X-Ray Diffraction / instrumentation
TL;DR: Six of the seven breast cancer specimens examined with diffraction-enhanced imaging at 18 keV with a silicon crystal with use of the silicon 333 reflection in Bragg mode showed enhanced visibility of surface spiculation that correlated with histopathologic information, including extension of tumor into surrounding tissue. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Implementation of diffraction-enhanced imaging experiments: at the NSLS and APS

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 450(2-3), 556–567.

By: Z. Zhong*, W. Thomlinson*, D. Chapman* & D. Sayers n

author keywords: radiography; diffraction-enhanced imaging; rocking curve
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1999 article

Cobalt suicide formation on 6H silicon carbide

Porto, A. O., Boyanov, B. I., Sayers, D. E., & Nemanich, R. J. (1999, May 1). JOURNAL OF SYNCHROTRON RADIATION, Vol. 6, pp. 188–189.

By: A. Porto n, B. Boyanov n, D. Sayers n & R. Nemanich n

author keywords: Silicon Carbide; metal-semiconductor contacts; molecular beam epitaxy
TL;DR: The results show that Co-Si bonds were preferentially formed in the 1 A Co films, while in the 25 and 100 A Co movies only Co-Co bonds were identified. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

1999 article

Estimation of uncertainties in XAFS data

Newville, M., Boyanov, B. I., & Sayers, D. E. (1999, May 1). JOURNAL OF SYNCHROTRON RADIATION, Vol. 6, pp. 264–265.

By: M. Newville n, B. Boyanov n & D. Sayers n

author keywords: XAFS analysis; error analysis; Fourier transform
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Germanium segregation in the Co/SiGe/Si(001) thin film system

JOURNAL OF MATERIALS RESEARCH, 14(11), 4372–4384.

By: P. Goeller n, B. Boyanov n, D. Sayers n, R. Nemanich n, A. Myers* & E. Steel*

Source: Web Of Science
Added: August 6, 2018

1999 journal article

Growth of epitaxial CoSi2 on SiGe(001)

JOURNAL OF APPLIED PHYSICS, 86(3), 1355–1362.

By: B. Boyanov n, P. Goeller n, D. Sayers n & R. Nemanich n

UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 article

Stability of copper sulfide in a contaminated soil

Zhou, W. Q., Hesterberg, D., Hansen, P. D., Hutchison, K. J., & Sayers, D. E. (1999, May 1). JOURNAL OF SYNCHROTRON RADIATION, Vol. 6, pp. 630–632.

By: W. Zhou, D. Hesterberg*, P. Hansen, K. Hutchison & D. Sayers*

Contributors: W. Zhou, D. Hesterberg*, P. Hansen, K. Hutchison & D. Sayers*

author keywords: X-ray absorption; XAFS; environmental
TL;DR: Using EXAFS spectroscopy, the proportion of copper sulfide in soil samples before and after exposure to more oxidizing conditions for 35 days at pH 6.6 or 7.6 was determined, indicating that the soil samples were not oxidized to Cu-O bonding during the treatment. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

1999 article

The effect of germanium on the Co-SiGe thin-film reaction

Boyanov, B. I., Goeller, P. T., Sayers, D. E., & Nemanich, R. J. (1999, May 1). JOURNAL OF SYNCHROTRON RADIATION, Vol. 6, pp. 521–523.

By: B. Boyanov n, P. Goeller n, D. Sayers n & R. Nemanich n

author keywords: cobalt silicide; silicon-germanium; thickness effects; interfacial bonding; molecular beam epitaxy
TL;DR: Ge Co Germanium was found to have a strong influence on the path and products of the Co-SiGe reaction, and on the interfacial stability and crystallographic orientation of the silicide film, and the thickness effect was modelled in terms of the energy cost of Ge segregation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 article

XAFS study of adsorbed and mineral forms of phosphate

Hesterberg, D., Zhou, W. Q., Hutchison, K. J., Beauchemin, S., & Sayers, D. E. (1999, May 1). JOURNAL OF SYNCHROTRON RADIATION, Vol. 6, pp. 636–638.

Contributors: D. Hesterberg n, W. Zhou n, K. Hutchison n, S. Beauchemin n & D. Sayers n

author keywords: XANES; phosphorus; speciation; soil
TL;DR: Phosphorus KXANES spectra for Fe-phosphates were characterized by a unique pre-edge feature near -3 eV (relative energy) that increased in intensity with increasing mineral crystallinity and was very weak for phosphate adsorbed on goethite. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

1998 journal article

Co-deposition of cobalt disilicide on silicon-germanium thin films

THIN SOLID FILMS, 320(2), 206–210.

By: P. Goeller n, B. Boyanov n, D. Sayers n & R. Nemanich n

author keywords: cobalt disilicide; silicon-germanium alloys; EXAFS
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Film thickness effects in the Co-Si1-xGex solid phase reaction

JOURNAL OF APPLIED PHYSICS, 84(8), 4285–4291.

By: B. Boyanov n, P. Goeller n, D. Sayers n & R. Nemanich n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1998 article

In situ studies of metal-semiconductor interactions with synchrotron radiation

Sayers, D. E., Goeller, P. T., Boyanov, B. I., & Nemanich, R. J. (1998, May 1). JOURNAL OF SYNCHROTRON RADIATION, Vol. 5, pp. 1050–1051.

By: D. Sayers n, P. Goeller n, B. Boyanov n & R. Nemanich n

author keywords: EXAFS; metal-semiconductor contacts; silicon-germanium alloys; molecular-beam epitaxy
TL;DR: The capabilities and performance of a UHV system for in situ studies of metal-semiconductor interactions are described and the signal-to-noise ratio obtained indicates that the apparatus is capable of supporting in situ EXAFS studies of approximately 0.1-monolayer-thick films. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

1997 article

An integrated growth and analysis system for in-situ XAS studies of metal-semiconductor interactions

Wang, Z., Goeller, P. T., Boyanov, B. I., Sayers, D. E., & Nemanich, R. J. (1997, April). JOURNAL DE PHYSIQUE IV, Vol. 7, pp. 561–564.

By: Z. Wang n, P. Goeller n, B. Boyanov n, D. Sayers n & R. Nemanich n

Source: Web Of Science
Added: August 6, 2018

1997 article

Characterization of carbon supported Pt/Ru alloy particles using EXAFS spectroscopy

Pandya, K. I., Anderson, E. B., Sayers, D. E., & OGrady, W. E. (1997, April). JOURNAL DE PHYSIQUE IV, Vol. 7, pp. 955–956.

By: K. Pandya n, E. Anderson, D. Sayers n & W. OGrady*

Source: Web Of Science
Added: August 6, 2018

1997 journal article

Comparison between X ray absorption spectroscopy, anomalous wide angle X ray scattering, anomalous small angle X ray scattering, and diffraction anom

Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces & Biophysical, 101(51), 11040–11050.

By: D. Bazin, D. Sayers & J. Rehr

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Diffraction enhanced X-ray imaging

Physics in Medicine & Biology, 42(11), 2015–2025.

By: D. Chapman, W. Thomlinson, R. Johnston, D. Washburn, E. Pisano, N. Gmur, Z. Zhong, R. Menk, F. Arfelli, D. Sayers

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Electrical and structural properties of zirconium germanosilicide formed by a bilayer solid state reaction of Zr with strained Si1-xGex alloys

JOURNAL OF APPLIED PHYSICS, 82(5), 2342–2348.

By: Z. Wang n, D. Aldrich n, R. Nemanich n & D. Sayers n

Source: Web Of Science
Added: August 6, 2018

1997 conference paper

Extended x-ray absorption fine structure study of mercury speciation in a flood plain soil

Paris: INRA Editions.

By: Z. Wang, D. Hesterberg, W. Zhou, D. Sayers & W. Robarge

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Hydrogen chemisorption on silica-supported Pt clusters: In situ X-ray absorption spectroscopy

JOURNAL OF PHYSICAL CHEMISTRY B, 101(25), 4972–4977.

By: S. Reifsnyder n, M. Otten n, D. Sayers n & H. Lamb n

Source: Web Of Science
Added: August 6, 2018

1997 journal article

Numerical simulation of the platinum L (III) edge white line relative to nanometer scale clusters

Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces & Biophysical, 101(27), 5332–5336.

By: D. Bazin, D. Sayers, J. Rehr & C. Mottet

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Preferential Co-SI bonding at the Co/SiGe(100) interface

Applied Physics Letters, 71(21), 3060–3062.

By: B. Boyanov*, P. Goeller*, D. Sayers* & R. Nemanich

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

1997 article

Structure and stability of cobalt-silicon-germanium thin films

Goeller, P. T., Boyanov, B. I., Sayers, D. E., & Nemanich, R. J. (1997, December). NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 133, pp. 84–89.

By: P. Goeller n, B. Boyanov n, D. Sayers n & R. Nemanich n

author keywords: cobalt silicide; silicon-germanium alloys; metal-semiconductor contacts; molecular beam epitaxy
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1997 journal article

X-ray absorption spectroscopy of lead and zinc speciation in a contaminated groundwater aquifer

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 31(10), 2840–2846.

By: D. Hesterberg n, D. Sayers n, W. Zhou n, G. Plummer n & W. Robarge n

Contributors: D. Hesterberg n, D. Sayers n, W. Zhou n, G. Plummer n & W. Robarge n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

1997 journal article

XAFS Characterization of Copper in Model Aqueous Systems of Humic Acid and Illite

Le Journal De Physique IV, 7(C2), C2–833-C2–834.

By: D. Hesterberg n, D. Sayers n, W. Zhou n, W. Robarge n & G. Plummer n

Sources: Crossref, NC State University Libraries
Added: August 6, 2018

1997 article

XAFS characterization of copper contamination in the unsaturated and saturated zones of a soil profile

Sayers, D. E., Hesterberg, D., Zhou, W., Robarge, W. P., & Plummer, G. M. (1997, April). JOURNAL DE PHYSIQUE IV, Vol. 7, pp. 831–832.

By: D. Sayers n, D. Hesterberg n, W. Zhou n, W. Robarge n & G. Plummer

UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

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