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According to the book: Using TIMSS to investigate the translation of policy into practice through the world of textbooks

mathematics education

Schmidt WH, Valverde GA.
GSID: aQ7Egg-5rB0J
GA Valverde, LJ Bianchi, RG Wolfe, WH Schmidt… - 2002 - books.google.com

How are curriculum policies translated into opportunities to learn in the classroom? According to the Book presents findings from the largest cross-national study of textbooks …

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Valverde, G. A., Bianchi, L. J., Wolfe, R. G., Schmidt, W. H., & Houang, R. T. (2002). According to the book: Using TIMSS to investigate the translation of policy into practice through the world of textbooks. Springer Science & Business Media.
Valverde, Gilbert A., et al. According to the book: Using TIMSS to investigate the translation of policy into practice through the world of textbooks. Springer Science & Business Media, 2002.
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Refocusing US math and science education

Science education

Schmidt WH, Valverde GA.
GSID: V5sGBztbQJ4J
GA Valverde, WH Schmidt - Issues in Science and Technology, 1997 - JSTOR

TIMSS is far more than the" aca-demic Olympics" that so many in-ternational comparative assess-ments have been in the past. It included a multiyear research and development …

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Valverde, G. A., & Schmidt, W. H. (1997). Refocusing US math and science education. Issues in Science and Technology, 14(2), 60-66.
Valverde, Gilbert A., and William H. Schmidt. "Refocusing US math and science education." Issues in Science and Technology 14.2 (1997): 60-66.
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Thermal decomposition of dolomite under CO2: insights from TGA and in situ XRD analysis.

Physical chemistry chemical physics : PCCP

Valverde JM, Perejon A, Medina S, Perez-Maqueda LA.
PMID: 26506285
Phys Chem Chem Phys. 2015 Nov 28;17(44):30162-76. doi: 10.1039/c5cp05596b. Epub 2015 Oct 27.

Thermal decomposition of dolomite in the presence of CO2 in a calcination environment is investigated by means of in situ X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The in situ XRD results suggest that dolomite decomposes directly at a...

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Valverde JM, Perejon A, Medina S, et al. Thermal decomposition of dolomite under CO2: insights from TGA and in situ XRD analysis. Phys Chem Chem Phys. 2015;17(44):30162-76doi: 10.1039/c5cp05596b.
Valverde, J. M., Perejon, A., Medina, S., & Perez-Maqueda, L. A. (2015). Thermal decomposition of dolomite under CO2: insights from TGA and in situ XRD analysis. Physical chemistry chemical physics : PCCP, 17(44), 30162-76. https://doi.org/10.1039/c5cp05596b
Valverde, Jose Manuel, et al. "Thermal decomposition of dolomite under CO2: insights from TGA and in situ XRD analysis." Physical chemistry chemical physics : PCCP vol. 17,44 (2015): 30162-76. doi: https://doi.org/10.1039/c5cp05596b
Valverde JM, Perejon A, Medina S, Perez-Maqueda LA. Thermal decomposition of dolomite under CO2: insights from TGA and in situ XRD analysis. Phys Chem Chem Phys. 2015 Nov 28;17(44):30162-76. doi: 10.1039/c5cp05596b. Epub 2015 Oct 27. PMID: 26506285.
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Effect of vibration on the stability of a gas-fluidized bed of fine powder.

Physical review. E, Statistical, nonlinear, and soft matter physics

Valverde JM, Castellanos A, Quintanilla MA.
PMID: 11497573
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Aug;64(2):021302. doi: 10.1103/PhysRevE.64.021302. Epub 2001 Jul 18.

We have investigated the effect of vibrations on the stability of gas-fluidized beds of fine powders (particle size approximately 10 microm). The powder is uniformly fluidized by an adjustable gas flow that enables us to control the average solid...

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Valverde JM, Castellanos A, Quintanilla MA. Effect of vibration on the stability of a gas-fluidized bed of fine powder. Phys Rev E Stat Nonlin Soft Matter Phys. 2001;64(2):021302doi: 10.1103/PhysRevE.64.021302.
Valverde, J. M., Castellanos, A., & Quintanilla, M. A. (2001). Effect of vibration on the stability of a gas-fluidized bed of fine powder. Physical review. E, Statistical, nonlinear, and soft matter physics, 64(2), 021302. https://doi.org/10.1103/PhysRevE.64.021302
Valverde, J M, et al. "Effect of vibration on the stability of a gas-fluidized bed of fine powder." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 64,2 (2001): 021302. doi: https://doi.org/10.1103/PhysRevE.64.021302
Valverde JM, Castellanos A, Quintanilla MA. Effect of vibration on the stability of a gas-fluidized bed of fine powder. Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Aug;64(2):021302. doi: 10.1103/PhysRevE.64.021302. Epub 2001 Jul 18. PMID: 11497573.
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Biological and Molecular Properties of a Begomovirus from Dicliptera sexangularis.

Phytopathology

Lotrakul P, Valverde RA, Landry AD.
PMID: 18944491
Phytopathology. 2000 Jul;90(7):723-9. doi: 10.1094/PHYTO.2000.90.7.723.

ABSTRACT Sixangle foldwing, Dicliptera sexangularis (Acanthaceae), showing severe yellow mottle and leaf distortion symptoms was collected from the shoreline of Calusa Island (Lee County, FL). The putative virus was transmitted from infected D. sexangularis to healthy seedlings by mechanical,...

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Lotrakul P, Valverde RA, Landry AD. Biological and Molecular Properties of a Begomovirus from Dicliptera sexangularis. Phytopathology. 2000;90(7):723-9doi: 10.1094/PHYTO.2000.90.7.723.
Lotrakul, P., Valverde, R. A., & Landry, A. D. (2000). Biological and Molecular Properties of a Begomovirus from Dicliptera sexangularis. Phytopathology, 90(7), 723-9. https://doi.org/10.1094/PHYTO.2000.90.7.723
Lotrakul, P, et al. "Biological and Molecular Properties of a Begomovirus from Dicliptera sexangularis." Phytopathology vol. 90,7 (2000): 723-9. doi: https://doi.org/10.1094/PHYTO.2000.90.7.723
Lotrakul P, Valverde RA, Landry AD. Biological and Molecular Properties of a Begomovirus from Dicliptera sexangularis. Phytopathology. 2000 Jul;90(7):723-9. doi: 10.1094/PHYTO.2000.90.7.723. PMID: 18944491.
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Highly collinear three-way photoinduced spectrofluorimetric data arrays modelled with bilinear least-squares: Determination of tetracyclines in surface water samples.

Talanta

Valverde RS, García MD, Galera MM, Goicoechea HC.
PMID: 18970839
Talanta. 2006 Nov 15;70(4):774-83. doi: 10.1016/j.talanta.2006.01.037. Epub 2006 Mar 03.

A new sensitive method for the determination of three tetracyclines in surface water samples (tetracycline, chlortetracycline and oxytetracycline) using highly collinear data corresponding to photochemical-induced fluorescence excitation emission matrices, modelled with three-way data arrays chemometric tools has been developed....

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Valverde RS, García MD, Galera MM, et al. Highly collinear three-way photoinduced spectrofluorimetric data arrays modelled with bilinear least-squares: Determination of tetracyclines in surface water samples. Talanta. 2006;70(4):774-83doi: 10.1016/j.talanta.2006.01.037.
Valverde, R. S., García, M. D., Galera, M. M., & Goicoechea, H. C. (2006). Highly collinear three-way photoinduced spectrofluorimetric data arrays modelled with bilinear least-squares: Determination of tetracyclines in surface water samples. Talanta, 70(4), 774-83. https://doi.org/10.1016/j.talanta.2006.01.037
Valverde, Rosario Santiago, et al. "Highly collinear three-way photoinduced spectrofluorimetric data arrays modelled with bilinear least-squares: Determination of tetracyclines in surface water samples." Talanta vol. 70,4 (2006): 774-83. doi: https://doi.org/10.1016/j.talanta.2006.01.037
Valverde RS, García MD, Galera MM, Goicoechea HC. Highly collinear three-way photoinduced spectrofluorimetric data arrays modelled with bilinear least-squares: Determination of tetracyclines in surface water samples. Talanta. 2006 Nov 15;70(4):774-83. doi: 10.1016/j.talanta.2006.01.037. Epub 2006 Mar 03. PMID: 18970839.
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Robustness of the European power grids under intentional attack.

Physical review. E, Statistical, nonlinear, and soft matter physics

Solé RV, Rosas-Casals M, Corominas-Murtra B, Valverde S.
PMID: 18352085
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Feb;77(2):026102. doi: 10.1103/PhysRevE.77.026102. Epub 2008 Feb 07.

The power grid defines one of the most important technological networks of our times and sustains our complex society. It has evolved for more than a century into an extremely huge and seemingly robust and well understood system. But...

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Solé RV, Rosas-Casals M, Corominas-Murtra B, et al. Robustness of the European power grids under intentional attack. Phys Rev E Stat Nonlin Soft Matter Phys. 2008;77(2):026102doi: 10.1103/PhysRevE.77.026102.
Solé, R. V., Rosas-Casals, M., Corominas-Murtra, B., & Valverde, S. (2008). Robustness of the European power grids under intentional attack. Physical review. E, Statistical, nonlinear, and soft matter physics, 77(2), 026102. https://doi.org/10.1103/PhysRevE.77.026102
Solé, Ricard V, et al. "Robustness of the European power grids under intentional attack." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 77,2 (2008): 026102. doi: https://doi.org/10.1103/PhysRevE.77.026102
Solé RV, Rosas-Casals M, Corominas-Murtra B, Valverde S. Robustness of the European power grids under intentional attack. Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Feb;77(2):026102. doi: 10.1103/PhysRevE.77.026102. Epub 2008 Feb 07. PMID: 18352085.
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Pull-off force of coated fine powders under small consolidation.

Physical review. E, Statistical, nonlinear, and soft matter physics

Chen Y, Quintanilla MA, Yang J, Valverde JM, Dave RN.
PMID: 19518222
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Apr;79(4):041305. doi: 10.1103/PhysRevE.79.041305. Epub 2009 Apr 14.

In this paper, a three-dimensional model taking into account the contact deformation and surface area coverage (SAC) of nanoadditives is proposed to predict the force required to separate two contacting particles (the pull-off force) under consolidation stress up to...

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Chen Y, Quintanilla MA, Yang J, et al. Pull-off force of coated fine powders under small consolidation. Phys Rev E Stat Nonlin Soft Matter Phys. 2009;79(4):041305doi: 10.1103/PhysRevE.79.041305.
Chen, Y., Quintanilla, M. A., Yang, J., Valverde, J. M., & Dave, R. N. (2009). Pull-off force of coated fine powders under small consolidation. Physical review. E, Statistical, nonlinear, and soft matter physics, 79(4), 041305. https://doi.org/10.1103/PhysRevE.79.041305
Chen, Yuhua, et al. "Pull-off force of coated fine powders under small consolidation." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 79,4 (2009): 041305. doi: https://doi.org/10.1103/PhysRevE.79.041305
Chen Y, Quintanilla MA, Yang J, Valverde JM, Dave RN. Pull-off force of coated fine powders under small consolidation. Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Apr;79(4):041305. doi: 10.1103/PhysRevE.79.041305. Epub 2009 Apr 14. PMID: 19518222.
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From the donor's arm to blood product: a study on bacterial contamination of apheresis platelet concentrates.

Blood transfusion = Trasfusione del sangue

Leo AM, Salvadego MM, Piva MG, Ruffato G, Valverde S, Trabuio E, Antico F, Gessoni G.
PMID: 19204765
Blood Transfus. 2007 Jul;5(3):130-3. doi: 10.2450/2007.0003-07.

BACKGROUND: Transfusion-associated bacterial infections are a quite frequent collateral effect of administration of platelet concentrates (PC). We carried out a microbiological surveillance of bacterial contamination of apheresis platelet concentrates by studying microbial flora on donors' arms before and after...

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Leo AM, Salvadego MM, Piva MG, et al. From the donor's arm to blood product: a study on bacterial contamination of apheresis platelet concentrates. Blood Transfus. 2007;5(3):130-3doi: 10.2450/2007.0003-07.
Leo, A. M., Salvadego, M. M., Piva, M. G., Ruffato, G., Valverde, S., Trabuio, E., Antico, F., & Gessoni, G. (2007). From the donor's arm to blood product: a study on bacterial contamination of apheresis platelet concentrates. Blood transfusion = Trasfusione del sangue, 5(3), 130-3. https://doi.org/10.2450/2007.0003-07
Leo, Anna Maria, et al. "From the donor's arm to blood product: a study on bacterial contamination of apheresis platelet concentrates." Blood transfusion = Trasfusione del sangue vol. 5,3 (2007): 130-3. doi: https://doi.org/10.2450/2007.0003-07
Leo AM, Salvadego MM, Piva MG, Ruffato G, Valverde S, Trabuio E, Antico F, Gessoni G. From the donor's arm to blood product: a study on bacterial contamination of apheresis platelet concentrates. Blood Transfus. 2007 Jul;5(3):130-3. doi: 10.2450/2007.0003-07. PMID: 19204765; PMCID: PMC2535893.
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Topology and evolution of technology innovation networks.

Physical review. E, Statistical, nonlinear, and soft matter physics

Valverde S, Solé RV, Bedau MA, Packard N.
PMID: 18233729
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Nov;76(5):056118. doi: 10.1103/PhysRevE.76.056118. Epub 2007 Nov 28.

The web of relations linking technological innovation can be fairly described in terms of patent citations. The resulting patent citation network provides a picture of the large-scale organization of innovations and its time evolution. Here we study the patterns...

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Valverde S, Solé RV, Bedau MA, et al. Topology and evolution of technology innovation networks. Phys Rev E Stat Nonlin Soft Matter Phys. 2007;76(5):056118doi: 10.1103/PhysRevE.76.056118.
Valverde, S., Solé, R. V., Bedau, M. A., & Packard, N. (2007). Topology and evolution of technology innovation networks. Physical review. E, Statistical, nonlinear, and soft matter physics, 76(5), 056118. https://doi.org/10.1103/PhysRevE.76.056118
Valverde, Sergi, et al. "Topology and evolution of technology innovation networks." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 76,5 (2007): 056118. doi: https://doi.org/10.1103/PhysRevE.76.056118
Valverde S, Solé RV, Bedau MA, Packard N. Topology and evolution of technology innovation networks. Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Nov;76(5):056118. doi: 10.1103/PhysRevE.76.056118. Epub 2007 Nov 28. PMID: 18233729.
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Self-organization versus hierarchy in open-source social networks.

Physical review. E, Statistical, nonlinear, and soft matter physics

Valverde S, Solé RV.
PMID: 17995071
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Oct;76(4):046118. doi: 10.1103/PhysRevE.76.046118. Epub 2007 Oct 26.

Complex networks emerge under different conditions including design (i.e., top-down decisions) through simple rules of growth and evolution. Such rules are typically local when dealing with biological systems and most social webs. An important deviation from such a scenario...

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Valverde S, Solé RV. Self-organization versus hierarchy in open-source social networks. Phys Rev E Stat Nonlin Soft Matter Phys. 2007;76(4):046118doi: 10.1103/PhysRevE.76.046118.
Valverde, S., & Solé, R. V. (2007). Self-organization versus hierarchy in open-source social networks. Physical review. E, Statistical, nonlinear, and soft matter physics, 76(4), 046118. https://doi.org/10.1103/PhysRevE.76.046118
Valverde, Sergi, and Solé, Ricard V. "Self-organization versus hierarchy in open-source social networks." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 76,4 (2007): 046118. doi: https://doi.org/10.1103/PhysRevE.76.046118
Valverde S, Solé RV. Self-organization versus hierarchy in open-source social networks. Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Oct;76(4):046118. doi: 10.1103/PhysRevE.76.046118. Epub 2007 Oct 26. PMID: 17995071.
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Fluidization of nanopowders: a review.

Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology

van Ommen JR, Valverde JM, Pfeffer R.
PMID: 22593643
J Nanopart Res. 2012 Mar;14(3):737. doi: 10.1007/s11051-012-0737-4. Epub 2012 Feb 10.

Nanoparticles (NPs) are applied in a wide range of processes, and their use continues to increase. Fluidization is one of the best techniques available to disperse and process NPs. NPs cannot be fluidized individually; they fluidize as very porous...

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van Ommen JR, Valverde JM, Pfeffer R. Fluidization of nanopowders: a review. J Nanopart Res. 2012;14(3):737doi: 10.1007/s11051-012-0737-4.
van Ommen, J. R., Valverde, J. M., & Pfeffer, R. (2012). Fluidization of nanopowders: a review. Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 14(3), 737. https://doi.org/10.1007/s11051-012-0737-4
van Ommen, J Ruud, et al. "Fluidization of nanopowders: a review." Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology vol. 14,3 (2012): 737. doi: https://doi.org/10.1007/s11051-012-0737-4
van Ommen JR, Valverde JM, Pfeffer R. Fluidization of nanopowders: a review. J Nanopart Res. 2012 Mar;14(3):737. doi: 10.1007/s11051-012-0737-4. Epub 2012 Feb 10. PMID: 22593643; PMCID: PMC3333789.
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Showing 1 to 12 of 224 entries