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Formal Definitions of Unbounded Evolution and Innovation Reveal Universal Mechanisms for Open-Ended Evolution in Dynamical Systems.

Scientific reports

Adams A, Zenil H, Davies PCW, Walker SI.
PMID: 28428620
Sci Rep. 2017 Apr 20;7(1):997. doi: 10.1038/s41598-017-00810-8.

Open-ended evolution (OEE) is relevant to a variety of biological, artificial and technological systems, but has been challenging to reproduce in silico. Most theoretical efforts focus on key aspects of open-ended evolution as it appears in biology. We recast...

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Adams A, Zenil H, Davies PCW, et al. Formal Definitions of Unbounded Evolution and Innovation Reveal Universal Mechanisms for Open-Ended Evolution in Dynamical Systems. Sci Rep. 2017;7(1):997doi: 10.1038/s41598-017-00810-8.
Adams, A., Zenil, H., Davies, P. C. W., & Walker, S. I. (2017). Formal Definitions of Unbounded Evolution and Innovation Reveal Universal Mechanisms for Open-Ended Evolution in Dynamical Systems. Scientific reports, 7(1), 997. https://doi.org/10.1038/s41598-017-00810-8
Adams, Alyssa, et al. "Formal Definitions of Unbounded Evolution and Innovation Reveal Universal Mechanisms for Open-Ended Evolution in Dynamical Systems." Scientific reports vol. 7,1 (2017): 997. doi: https://doi.org/10.1038/s41598-017-00810-8
Adams A, Zenil H, Davies PCW, Walker SI. Formal Definitions of Unbounded Evolution and Innovation Reveal Universal Mechanisms for Open-Ended Evolution in Dynamical Systems. Sci Rep. 2017 Apr 20;7(1):997. doi: 10.1038/s41598-017-00810-8. PMID: 28428620; PMCID: PMC5430523.
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Postpartum sacral fracture in a 30-year-old female.

Radiology case reports

Roller RL, Walker EA, Michelitch SW.
PMID: 27307816
Radiol Case Rep. 2015 Dec 07;4(3):264. doi: 10.2484/rcr.v4i3.264. eCollection 2009.

Possible causes of sacral and low back pain in the postpartum patient include sacroiliac joint dysfunction, sacroiliitis, lower lumbar diskitis, and irritation of the sciatic nerve. Postpartum stress fracture is a recognized cause of pain that should be considered...

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Roller RL, Walker EA, Michelitch SW. Postpartum sacral fracture in a 30-year-old female. Radiol Case Rep. 2015;4(3):264doi: 10.2484/rcr.v4i3.264.
Roller, R. L., Walker, E. A., & Michelitch, S. W. (2009). Postpartum sacral fracture in a 30-year-old female. Radiology case reports, 4(3), 264. https://doi.org/10.2484/rcr.v4i3.264
Roller, Rebecca L, et al. "Postpartum sacral fracture in a 30-year-old female." Radiology case reports vol. 4,3 (2009): 264. doi: https://doi.org/10.2484/rcr.v4i3.264
Roller RL, Walker EA, Michelitch SW. Postpartum sacral fracture in a 30-year-old female. Radiol Case Rep. 2015 Dec 07;4(3):264. doi: 10.2484/rcr.v4i3.264. eCollection 2009. PMID: 27307816; PMCID: PMC4898075.
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Plant tyrosine decarboxylase can be strongly inhibited by L-α-aminooxy-β-phenylpropionate.

Planta

Chapple CC, Walker MA, Ellis BE.
PMID: 24241738
Planta. 1986 Jan;167(1):101-5. doi: 10.1007/BF00446375.

Tyrosine decarboxylase (EC 4.1.1.25) from Syringa vulgaris L. cell cultures and from Hordeum vulgare L. seedlings is strongly inhibited by the phenylalanine analogue, L-α-aminooxy-β-phenylpropionate. L-α-Aminooxy-β-phenylpropionate is therefore not specific in its inhibitory action against phenylalanine ammonia-lyase (EC 4.3.1.5). Hordeum...

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Chapple CC, Walker MA, Ellis BE. Plant tyrosine decarboxylase can be strongly inhibited by L-α-aminooxy-β-phenylpropionate. Planta. 1986;167(1):101-5doi: 10.1007/BF00446375.
Chapple, C. C., Walker, M. A., & Ellis, B. E. (1986). Plant tyrosine decarboxylase can be strongly inhibited by L-α-aminooxy-β-phenylpropionate. Planta, 167(1), 101-5. https://doi.org/10.1007/BF00446375
Chapple, C C, et al. "Plant tyrosine decarboxylase can be strongly inhibited by L-α-aminooxy-β-phenylpropionate." Planta vol. 167,1 (1986): 101-5. doi: https://doi.org/10.1007/BF00446375
Chapple CC, Walker MA, Ellis BE. Plant tyrosine decarboxylase can be strongly inhibited by L-α-aminooxy-β-phenylpropionate. Planta. 1986 Jan;167(1):101-5. doi: 10.1007/BF00446375. PMID: 24241738.
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Erratum: STAT3 regulated ARF expression suppresses prostate cancer metastasis.

Nature communications

Pencik J, Schlederer M, Gruber W, Unger C, Walker SM, Chalaris A, Marié IJ, Hassler MR, Javaheri T, Aksoy O, Blayney JK, Prutsch N, Skucha A, Herac M, Krämer OH, Mazal P, Grebien F, Egger G, Poli V, Mikulits W, Eferl R, Esterbauer H, Kennedy R, Fend F, Scharpf M, Braun M, Perner S, Levy DE, Malcolm T, Turner SD, Haitel A, Susani M, Moazzami A, Rose-John S, Aberger F, Merkel O, Moriggl R, Culig Z, Dolznig H, Kenner L.
PMID: 26499136
Nat Commun. 2015 Oct 26;6:8802. doi: 10.1038/ncomms9802.

No abstract available.

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Pencik J, Schlederer M, Gruber W, et al. Erratum: STAT3 regulated ARF expression suppresses prostate cancer metastasis. Nat Commun. 2015;6:8802doi: 10.1038/ncomms9802.
Pencik, J., Schlederer, M., Gruber, W., Unger, C., Walker, S. M., Chalaris, A., Marié, I. J., Hassler, M. R., Javaheri, T., Aksoy, O., Blayney, J. K., Prutsch, N., Skucha, A., Herac, M., Krämer, O. H., Mazal, P., Grebien, F., Egger, G., Poli, V., Mikulits, W., Eferl, R., Esterbauer, H., Kennedy, R., Fend, F., Scharpf, M., Braun, M., Perner, S., Levy, D. E., Malcolm, T., Turner, S. D., Haitel, A., Susani, M., Moazzami, A., Rose-John, S., Aberger, F., Merkel, O., Moriggl, R., Culig, Z., Dolznig, H., & Kenner, L. (2015). Erratum: STAT3 regulated ARF expression suppresses prostate cancer metastasis. Nature communications, 68802. https://doi.org/10.1038/ncomms9802
Pencik, Jan, et al. "Erratum: STAT3 regulated ARF expression suppresses prostate cancer metastasis." Nature communications vol. 6 (2015): 8802. doi: https://doi.org/10.1038/ncomms9802
Pencik J, Schlederer M, Gruber W, Unger C, Walker SM, Chalaris A, Marié IJ, Hassler MR, Javaheri T, Aksoy O, Blayney JK, Prutsch N, Skucha A, Herac M, Krämer OH, Mazal P, Grebien F, Egger G, Poli V, Mikulits W, Eferl R, Esterbauer H, Kennedy R, Fend F, Scharpf M, Braun M, Perner S, Levy DE, Malcolm T, Turner SD, Haitel A, Susani M, Moazzami A, Rose-John S, Aberger F, Merkel O, Moriggl R, Culig Z, Dolznig H, Kenner L. Erratum: STAT3 regulated ARF expression suppresses prostate cancer metastasis. Nat Commun. 2015 Oct 26;6:8802. doi: 10.1038/ncomms9802. PMID: 26499136; PMCID: PMC7188464.
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Light-dependent reduction of dehydroascorbate and uptake of exogenous ascorbate by spinach chloroplasts.

Planta

Anderson JW, Foyer CH, Walker DA.
PMID: 24264854
Planta. 1983 Aug;158(5):442-50. doi: 10.1007/BF00397738.

A reconstituted spinach chloroplast system containing thylakoids, stroma and 0.1 mM NADPH supported O2 evolution in the presence of oxidised glutathione (GSSG). The properties of the reaction were consistent with light-coupled GSSG-reductase activity involving H2O as eventual electron donor....

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Anderson JW, Foyer CH, Walker DA. Light-dependent reduction of dehydroascorbate and uptake of exogenous ascorbate by spinach chloroplasts. Planta. 1983;158(5):442-50doi: 10.1007/BF00397738.
Anderson, J. W., Foyer, C. H., & Walker, D. A. (1983). Light-dependent reduction of dehydroascorbate and uptake of exogenous ascorbate by spinach chloroplasts. Planta, 158(5), 442-50. https://doi.org/10.1007/BF00397738
Anderson, J W, et al. "Light-dependent reduction of dehydroascorbate and uptake of exogenous ascorbate by spinach chloroplasts." Planta vol. 158,5 (1983): 442-50. doi: https://doi.org/10.1007/BF00397738
Anderson JW, Foyer CH, Walker DA. Light-dependent reduction of dehydroascorbate and uptake of exogenous ascorbate by spinach chloroplasts. Planta. 1983 Aug;158(5):442-50. doi: 10.1007/BF00397738. PMID: 24264854.
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Bidirectional reflection effects in practical integrating spheres.

Applied optics

Mahan JR, Walker JA, Stancil MM.
PMID: 26560384
Appl Opt. 2015 Oct 20;54(30):8951-6. doi: 10.1364/AO.54.008951.

Integrating spheres play a central role in radiometric instrument calibration, surface optical property measurement, and radiant source characterization. Our work involves a simulation, based on the Monte Carlo ray-trace (MCRT) of bidirectional reflections within a practical integrating sphere pierced...

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Mahan JR, Walker JA, Stancil MM. Bidirectional reflection effects in practical integrating spheres. Appl Opt. 2015;54(30):8951-6doi: 10.1364/AO.54.008951.
Mahan, J. R., Walker, J. A., & Stancil, M. M. (2015). Bidirectional reflection effects in practical integrating spheres. Applied optics, 54(30), 8951-6. https://doi.org/10.1364/AO.54.008951
Mahan, J R, et al. "Bidirectional reflection effects in practical integrating spheres." Applied optics vol. 54,30 (2015): 8951-6. doi: https://doi.org/10.1364/AO.54.008951
Mahan JR, Walker JA, Stancil MM. Bidirectional reflection effects in practical integrating spheres. Appl Opt. 2015 Oct 20;54(30):8951-6. doi: 10.1364/AO.54.008951. PMID: 26560384.
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Internet-Based Approaches to Building Stakeholder Networks for Conservation and Natural Resource Management.

Environmental management

Kreakie BJ, Hychka KC, Belaire JA, Minor E, Walker HA.
PMID: 26503113
Environ Manage. 2016 Feb;57(2):345-54. doi: 10.1007/s00267-015-0624-8. Epub 2015 Oct 27.

Social network analysis (SNA) is based on a conceptual network representation of social interactions and is an invaluable tool for conservation professionals to increase collaboration, improve information flow, and increase efficiency. We present two approaches to constructing internet-based social...

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Kreakie BJ, Hychka KC, Belaire JA, et al. Internet-Based Approaches to Building Stakeholder Networks for Conservation and Natural Resource Management. Environ Manage. 2015;57(2):345-54doi: 10.1007/s00267-015-0624-8.
Kreakie, B. J., Hychka, K. C., Belaire, J. A., Minor, E., & Walker, H. A. (2016). Internet-Based Approaches to Building Stakeholder Networks for Conservation and Natural Resource Management. Environmental management, 57(2), 345-54. https://doi.org/10.1007/s00267-015-0624-8
Kreakie, B J, et al. "Internet-Based Approaches to Building Stakeholder Networks for Conservation and Natural Resource Management." Environmental management vol. 57,2 (2016): 345-54. doi: https://doi.org/10.1007/s00267-015-0624-8
Kreakie BJ, Hychka KC, Belaire JA, Minor E, Walker HA. Internet-Based Approaches to Building Stakeholder Networks for Conservation and Natural Resource Management. Environ Manage. 2016 Feb;57(2):345-54. doi: 10.1007/s00267-015-0624-8. Epub 2015 Oct 27. PMID: 26503113; PMCID: PMC4712246.
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Granulin, a novel STAT3-interacting protein, enhances STAT3 transcriptional function and correlates with poorer prognosis in breast cancer.

Genes & cancer

Yeh JE, Kreimer S, Walker SR, Emori MM, Krystal H, Richardson A, Ivanov AR, Frank DA.
PMID: 26000098
Genes Cancer. 2015 Mar;6(3):153-68. doi: 10.18632/genesandcancer.58.

Since the neoplastic phenotype of a cell is largely driven by aberrant gene expression patterns, increasing attention has been focused on transcription factors that regulate critical mediators of tumorigenesis such as signal transducer and activator of transcription 3 (STAT3)....

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Yeh JE, Kreimer S, Walker SR, et al. Granulin, a novel STAT3-interacting protein, enhances STAT3 transcriptional function and correlates with poorer prognosis in breast cancer. Genes Cancer. 2015;6(3):153-68doi: 10.18632/genesandcancer.58.
Yeh, J. E., Kreimer, S., Walker, S. R., Emori, M. M., Krystal, H., Richardson, A., Ivanov, A. R., & Frank, D. A. (2015). Granulin, a novel STAT3-interacting protein, enhances STAT3 transcriptional function and correlates with poorer prognosis in breast cancer. Genes & cancer, 6(3), 153-68. https://doi.org/10.18632/genesandcancer.58
Yeh, Jennifer E, et al. "Granulin, a novel STAT3-interacting protein, enhances STAT3 transcriptional function and correlates with poorer prognosis in breast cancer." Genes & cancer vol. 6,3 (2015): 153-68. doi: https://doi.org/10.18632/genesandcancer.58
Yeh JE, Kreimer S, Walker SR, Emori MM, Krystal H, Richardson A, Ivanov AR, Frank DA. Granulin, a novel STAT3-interacting protein, enhances STAT3 transcriptional function and correlates with poorer prognosis in breast cancer. Genes Cancer. 2015 Mar;6(3):153-68. doi: 10.18632/genesandcancer.58. PMID: 26000098; PMCID: PMC4426952.
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Vascular surgical society of great britain and ireland: changes in proximal aortic neck dimensions following endovascular repair of abdominal aortic aneurysm .

The British journal of surgery

Walker SR, MacIerewicz J, Whitaker SC, Gregson RH, Hopkinson BR.
PMID: 10361203
Br J Surg. 1999 May;86(5):697. doi: 10.1046/j.1365-2168.1999.0697a.x.

BACKGROUND: Dilatation of the proximal neck following conventional open repair of abdominal aortic aneurysm (AAA) has been reported. Such continued dilatation following endovascular repair (EVR) could potentially be a disaster resulting in graft slippage, endoleak and aneurysm rupture. The...

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Walker SR, MacIerewicz J, Whitaker SC, et al. Vascular surgical society of great britain and ireland: changes in proximal aortic neck dimensions following endovascular repair of abdominal aortic aneurysm . Br J Surg. 1999;86(5):697doi: 10.1046/j.1365-2168.1999.0697a.x.
Walker, S. R., MacIerewicz, J., Whitaker, S. C., Gregson, R. H., & Hopkinson, B. R. (1999). Vascular surgical society of great britain and ireland: changes in proximal aortic neck dimensions following endovascular repair of abdominal aortic aneurysm . The British journal of surgery, 86(5), 697. https://doi.org/10.1046/j.1365-2168.1999.0697a.x
Walker, et al. "Vascular surgical society of great britain and ireland: changes in proximal aortic neck dimensions following endovascular repair of abdominal aortic aneurysm ." The British journal of surgery vol. 86,5 (1999): 697. doi: https://doi.org/10.1046/j.1365-2168.1999.0697a.x
Walker SR, MacIerewicz J, Whitaker SC, Gregson RH, Hopkinson BR. Vascular surgical society of great britain and ireland: changes in proximal aortic neck dimensions following endovascular repair of abdominal aortic aneurysm . Br J Surg. 1999 May;86(5):697. doi: 10.1046/j.1365-2168.1999.0697a.x. PMID: 10361203.
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Behavioral science research in the prevention of diabetes : status and opportunities.

Diabetes care

Fisher EB, Walker EA, Bostrom A, Fischhoff B, Haire-Joshu D, Johnson SB.
PMID: 11874954
Diabetes Care. 2002 Mar;25(3):599-606. doi: 10.2337/diacare.25.3.599.

Recent studies show diabetes can be prevented. Growing knowledge of its biological bases opens further prevention opportunities. This article focuses on behavioral science research that may advance these opportunities. An ecological model guides attention to how prevention research may...

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Fisher EB, Walker EA, Bostrom A, et al. Behavioral science research in the prevention of diabetes : status and opportunities. Diabetes Care. 2002;25(3):599-606doi: 10.2337/diacare.25.3.599.
Fisher, E. B., Walker, E. A., Bostrom, A., Fischhoff, B., Haire-Joshu, D., & Johnson, S. B. (2002). Behavioral science research in the prevention of diabetes : status and opportunities. Diabetes care, 25(3), 599-606. https://doi.org/10.2337/diacare.25.3.599
Fisher, Edwin B, et al. "Behavioral science research in the prevention of diabetes : status and opportunities." Diabetes care vol. 25,3 (2002): 599-606. doi: https://doi.org/10.2337/diacare.25.3.599
Fisher EB, Walker EA, Bostrom A, Fischhoff B, Haire-Joshu D, Johnson SB. Behavioral science research in the prevention of diabetes : status and opportunities. Diabetes Care. 2002 Mar;25(3):599-606. doi: 10.2337/diacare.25.3.599. PMID: 11874954.
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Millimeter-Wave Spectroscopy of Kr-CO and Xe-CO Using a Coaxial Jet Spectrometer.

Journal of molecular spectroscopy

Walker KA, McKellar AR.
PMID: 11162221
J Mol Spectrosc. 2001 Feb;205(2):331-337. doi: 10.1006/jmsp.2000.8272.

A new pulsed supersonic jet millimeter-wave spectrometer with coaxial propagation of the molecular jet and millimeter-waves has been constructed. The coaxial configuration provides greater sensitivity which has been demonstrated by observing b-type transitions of five isotopomers of Kr-(12)C(16)O and...

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Walker KA, McKellar AR. Millimeter-Wave Spectroscopy of Kr-CO and Xe-CO Using a Coaxial Jet Spectrometer. J Mol Spectrosc. 2001;205(2):331-337doi: 10.1006/jmsp.2000.8272.
Walker, K. A., & McKellar, A. R. (2001). Millimeter-Wave Spectroscopy of Kr-CO and Xe-CO Using a Coaxial Jet Spectrometer. Journal of molecular spectroscopy, 205(2), 331-337. https://doi.org/10.1006/jmsp.2000.8272
Walker, Kaley A., and McKellar, A. R. W.. "Millimeter-Wave Spectroscopy of Kr-CO and Xe-CO Using a Coaxial Jet Spectrometer." Journal of molecular spectroscopy vol. 205,2 (2001): 331-337. doi: https://doi.org/10.1006/jmsp.2000.8272
Walker KA, McKellar AR. Millimeter-Wave Spectroscopy of Kr-CO and Xe-CO Using a Coaxial Jet Spectrometer. J Mol Spectrosc. 2001 Feb;205(2):331-337. doi: 10.1006/jmsp.2000.8272. PMID: 11162221.
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Developing consumer-led maternity services: a survey of women's views in a local healthcare setting.

Health expectations : an international journal of public participation in health care and health policy

Emslie MJ, Campbell MK, Walker KA, Robertson S, Campbell A.
PMID: 11281896
Health Expect. 1999 Sep;2(3):195-207. doi: 10.1046/j.1369-6513.1999.00059.x.

OBJECTIVE: This paper describes a prospective study of women's views and experiences of maternity services. The aim was to examine the way women make choices and decisions about maternity care and the factors which influence decision making, with a...

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Emslie MJ, Campbell MK, Walker KA, et al. Developing consumer-led maternity services: a survey of women's views in a local healthcare setting. Health Expect. 1999;2(3):195-207doi: 10.1046/j.1369-6513.1999.00059.x.
Emslie, M. J., Campbell, M. K., Walker, K. A., Robertson, S., & Campbell, A. (1999). Developing consumer-led maternity services: a survey of women's views in a local healthcare setting. Health expectations : an international journal of public participation in health care and health policy, 2(3), 195-207. https://doi.org/10.1046/j.1369-6513.1999.00059.x
Emslie, Margaret J., et al. "Developing consumer-led maternity services: a survey of women's views in a local healthcare setting." Health expectations : an international journal of public participation in health care and health policy vol. 2,3 (1999): 195-207. doi: https://doi.org/10.1046/j.1369-6513.1999.00059.x
Emslie MJ, Campbell MK, Walker KA, Robertson S, Campbell A. Developing consumer-led maternity services: a survey of women's views in a local healthcare setting. Health Expect. 1999 Sep;2(3):195-207. doi: 10.1046/j.1369-6513.1999.00059.x. PMID: 11281896; PMCID: PMC5060106.
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Showing 25 to 36 of 1168 entries