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19 results on '"Grooten, M."'

1. Quartic double solids with ordinary singularities

Author

Grooten, M. I. and Steenbrink, J. H. M.

Subjects
Mathematics - Algebraic Geometry, 14J30, 14C30
Abstract

We study the mixed Hodge structure on the third homology group of a threefold which is the double cover of projective three-space ramified over a quartic surface with a double conic. We deal with the Torelli problem for such threefolds., Comment: 14 pages, presented at the Conference Arnol'd 70

Published
2008

3. Bending the curve of terrestrial biodiversity needs an integrated strategy

Author

Leclère, D., Obersteiner, M., Barrett, M., Butchart, S.H.M., Chaudhary, A., De Palma, Adriana, DeClerck, F.A.J., Di Marco, M., Doelman, J.C., Dürauer, M., Freeman, R., Harfoot, M., Hasegawa, T., Hellweg, S., Hilbers, J.P., Hill, S.L.L., Humpenöder, F., Jennings, N., Krisztin, T., Mace, G.M., Ohashi, H., Popp, Alexander, Purvis, A., Schipper, A.M., Tabeau, A., Valin, H., Meijl, H. van, Zeist, W.J. van, Visconti, P., Alkemade, R., Almond, R., Bunting, G., Burgess, N.D., Cornell, S.E., Di Fulvio, F., Ferrier, S., Fritz, S., Fujimori, S., Grooten, M., Harwood, T., Havlík, P., Herrero, M., Hoskins, A.J., Jung, M., Kram, T., Lotze-Campen, H., Matsui, T., Meyer, C., Nel, D., Newbold, T., Schmidt-Traub, G., Stehfest, E., Strassburg, B.B.N., Vuuren, D.P. van, Ware, C., Watson, J.E.M., Wu, W., Young, L., Leclère, D., Obersteiner, M., Barrett, M., Butchart, S.H.M., Chaudhary, A., De Palma, Adriana, DeClerck, F.A.J., Di Marco, M., Doelman, J.C., Dürauer, M., Freeman, R., Harfoot, M., Hasegawa, T., Hellweg, S., Hilbers, J.P., Hill, S.L.L., Humpenöder, F., Jennings, N., Krisztin, T., Mace, G.M., Ohashi, H., Popp, Alexander, Purvis, A., Schipper, A.M., Tabeau, A., Valin, H., Meijl, H. van, Zeist, W.J. van, Visconti, P., Alkemade, R., Almond, R., Bunting, G., Burgess, N.D., Cornell, S.E., Di Fulvio, F., Ferrier, S., Fritz, S., Fujimori, S., Grooten, M., Harwood, T., Havlík, P., Herrero, M., Hoskins, A.J., Jung, M., Kram, T., Lotze-Campen, H., Matsui, T., Meyer, C., Nel, D., Newbold, T., Schmidt-Traub, G., Stehfest, E., Strassburg, B.B.N., Vuuren, D.P. van, Ware, C., Watson, J.E.M., Wu, W., and Young, L.

Abstract

Contains fulltext : 228862.pdf (Publisher’s version ) (Open Access)

Published
2020

5. Reversing terrestrial biodiversity declines due to habitat loss: a multi-model assessment

Author

Leclere, D., Obersteiner, M., Alkemade, R., Almond, R., Barrett, M., Bunting, G., Burgess, N., Butchart, S., Chaudhary, A., Cornell, S., De Palma, A., DeClerck, F., Di Fulvio, F., Di Marco, M., Doelman, J., Dürauer, M., Ferrier, S., Freeman, R., Fritz, S., Fujimori, S., Grooten, M., Harfoot, M., Harwood, T., Hasegawa, T., Havlik, P., Hellweg, S., Herrero, M., Hilbers, J., Hill, S., Hoskins, A., Humpenöder, F., Kram, T., Krisztin, T., Lotze-Campen, H., Mace, G., Matsui, T., Meyer, C., Nel, D., Newbold, T., Ohashi, H., Popp, A., Purvis, A., Schipper, A., Schmidt-Traub, G., Stehfest, E., Strassburg, B., Tabeau, A., Valin, H., van Meijl, H., van Vuuren, D., van Zeist, W., Visconti, P., Ware, C., Watson, J., Wu, W., and Young, L.

Published
2019

7. Distributed Generation Law: A Guide to Regulations, Policies, and Programs

Author

Almond, R.E.A., Grooten, M., and Petersen, T.

Subjects
Distributed Generation Law: A Guide to Regulations, Policies, and Programs (Nonfiction work) -- Fitts, Sarah A.W. -- Davis, Florence K.S., Books -- Book reviews, Environmental issues, Law
Abstract

Distributed Generation Law: A Guide to Regulations, Policies, and Programs, edited by Sarah A. W. Fitts and Florence K. S. Davis, documents an ambitious project of the Renewable, Alternative, and [...]

Published
2021

8. Bending the curve on terrestrial biodiversity loss: a multi model assessment

Author

Leclere, D., Obersteiner, M., Alkemade, R., Almond, R., Barrett, M., Bunting, G., Burgess, N., Butchart, S., Chaudhary, A., Cornell, S., De Palma, A., DeClerck, F., Di Fulvio, F., Di Marco, M., Doelman, J., Dürauer, M., Ferrier, S., Freeman, R., Fritz, S., Fujimori, S., Grooten, M., Harfoot, M., Harwood, T., Hasegawa, T., Havlik, P., Hellweg, S., Herrero, M., Hilbers, J., Hill, S., Hoskins, A., Humpenöder, F., Kram, T., Krisztin, T., Lotze-Campen, H., Mace, G., Matsui, T., Meyer, C., Nel, D., Newbold, T., Ohashi, H., Popp, A., Purvis, A., Schipper, A., Schmidt-Traub, G., Stehfest, E., Strassburg, B., Tabeau, A., Valin, H., van Meijl, H., van Vuuren, D., van Zeist, W., Visconti, P., Ware, C., Watson, J., Wu, W., and Young, L.

Published
2018

9. Supporting material for the article entitled “Bending the curve of terrestrial biodiversity needs an integrated strategy”

Author

Leclere, D., Obersteiner, M., Butchart, S.H.M., Chaudhary, A., De Palma, A., DeClerk, F.A., Di Marco, M., Dürauer, M., Doelman, J.C., Freeman, R., Harfoot, M., Hasegawa, T., Hellweg, S., Hilbers, J., Hill, S., Humpenöder, F., Jennings, N., Krisztin, T., Mace, G., Ohashi, H., Popp, A., Purvis, A., Schipper, A., Tabeau, A., Valin, H., van Meijl, H., van Zeist, W.J., Visconti, P., Alkemade, R., Almond, R., Bunting, G., Burgess, N.D., Cornell, S.E., Di Fulvio, F., Ferrier, S., Fritz, S., Fujimori, S., Grooten, M., Harwood, T., Havlik, P., Herrero, M., Hoskins, A., Jung, M., Kram, T., Lotze-Campen, H., Matsui, T., Meyer, C., Nel, D., Newbold, T., Schmidt-Traub, G., Stehfest, E., Strassburg, B., van Duuren, D., Ware, C., Watson, J., Wu, W., Young, L., Leclere, D., Obersteiner, M., Butchart, S.H.M., Chaudhary, A., De Palma, A., DeClerk, F.A., Di Marco, M., Dürauer, M., Doelman, J.C., Freeman, R., Harfoot, M., Hasegawa, T., Hellweg, S., Hilbers, J., Hill, S., Humpenöder, F., Jennings, N., Krisztin, T., Mace, G., Ohashi, H., Popp, A., Purvis, A., Schipper, A., Tabeau, A., Valin, H., van Meijl, H., van Zeist, W.J., Visconti, P., Alkemade, R., Almond, R., Bunting, G., Burgess, N.D., Cornell, S.E., Di Fulvio, F., Ferrier, S., Fritz, S., Fujimori, S., Grooten, M., Harwood, T., Havlik, P., Herrero, M., Hoskins, A., Jung, M., Kram, T., Lotze-Campen, H., Matsui, T., Meyer, C., Nel, D., Newbold, T., Schmidt-Traub, G., Stehfest, E., Strassburg, B., van Duuren, D., Ware, C., Watson, J., Wu, W., and Young, L.

Abstract

The archive provides supporting material for the article entitled “Bending the curve of terrestrial biodiversity needs an integrated strategy”, published in the Nature journal (https://doi.org/10.1038/s41586-020-2705-y). It contains: i) the final version of the methodological report (updating the initial version [DOI:10.22022/ESM/04-2018.15241] for this article), ii) geospatial land-use projections generated by land-use models for the various scenarios described in the article, iii) aggregated land-use model projections for other variables used in the article, iv) the code, input data and output data of the various biodiversity models applied to the land use projections, v) the code and side data to produce numbers and figures presented in the article.”

Published
2019

10. Towards pathways bending the curve terrestrial biodiversity trends within the 21st century

Author

Leclere, D., Obersteiner, M., Alkemade, R., Almond, R., Barrett, M., Bunting, G., Burgess, N., Butchart, S., Chaudhary, A., Cornell, S., De Palma, A., Declerck, F., Di Fulvio, F., Di Marco, M., Doelman, J., Durauer, M., Ferrier, S., Freeman, R., Fritz, S., Fujimori, S., Grooten, M., Harfoot, M., Harwood, T., Hasegawa, T., Havlik, P., Hellweg, S., Herrero, M., Hilbers, J., Hill, S., Hoskins, A., Humpenöder, F., Kram, T., Krisztin, T., Lotze-Campen, H., Mace, G., Matsui, T., Meyer, C., Nel, D., Newbold, T., Ohashi, H., Popp, A., Purvis, A., Schipper, A., Schmidt-Traub, G., Stehfest, E., Strassburg, B., Tabeau, A., Valin, H., Van Meijl, H., Van Vuuren, D., Van Zeist, W., Visconti, P., Ware, C., Watson, J., Wu, W., and Young, L.

Subjects
land-use change, scenarios, biodiversity
Published
2018

11. Living Planet Report 2018: Aiming Higher

Author

Barrett, M., Belward, A., Bladen, S, Breeze, T., Burgess, N., Butchart, S., Clewclow, H., Cornell, S., Cottam, A., Croft, S., de Carlo, G., de Felice, L., de Palma, A., Deinet, S., Downie, R., Drijver, C., Fischler, B., Freeman, R., Gaffney, O., Galli, A, Gamblin, P., Garratt, M., Gorelick, N., Green, J., Grooten, M., Hanscom, L., Hill, S., Hilton-Taylor, C., Jones, A., Juniper, T., Khan, H., Kroodsma, D., Leclere, D., Llewellyn, G., Mace, G., McRae, L., Mo, K., Opperman, J., Orgiazzi, A., Orr, S., Pacheco, P., Palomares, D., Pauly, D., Pekel, J.-F., Pendleton, L., Purvis, A., Radcliffe, N., Roxburgh, T., Scholes, B, Senapathi, D., Tanzer, D., Thieme, M., Tickner, D., Tittonell, P., Trathan, P., Visconti, P., Wackernagel, M., West, C., Zwaal, N., Barrett, M., Belward, A., Bladen, S, Breeze, T., Burgess, N., Butchart, S., Clewclow, H., Cornell, S., Cottam, A., Croft, S., de Carlo, G., de Felice, L., de Palma, A., Deinet, S., Downie, R., Drijver, C., Fischler, B., Freeman, R., Gaffney, O., Galli, A, Gamblin, P., Garratt, M., Gorelick, N., Green, J., Grooten, M., Hanscom, L., Hill, S., Hilton-Taylor, C., Jones, A., Juniper, T., Khan, H., Kroodsma, D., Leclere, D., Llewellyn, G., Mace, G., McRae, L., Mo, K., Opperman, J., Orgiazzi, A., Orr, S., Pacheco, P., Palomares, D., Pauly, D., Pekel, J.-F., Pendleton, L., Purvis, A., Radcliffe, N., Roxburgh, T., Scholes, B, Senapathi, D., Tanzer, D., Thieme, M., Tickner, D., Tittonell, P., Trathan, P., Visconti, P., Wackernagel, M., West, C., and Zwaal, N.

Published
2018

17. Past, present, and future of the Living Planet Index.

Author

Ledger SEH, Loh J, Almond R, Böhm M, Clements CF, Currie J, Deinet S, Galewski T, Grooten M, Jenkins M, Marconi V, Painter B, Scott-Gatty K, Young L, Hoffmann M, Freeman R, and McRae L

Abstract

As we enter the next phase of international policy commitments to halt biodiversity loss (e.g., Kunming-Montreal Global Biodiversity Framework), biodiversity indicators will play an important role in forming the robust basis upon which targeted, and time sensitive conservation actions are developed. Population trend indicators are one of the most powerful tools in biodiversity monitoring due to their responsiveness to changes over short timescales and their ability to aggregate species trends from global down to sub-national or even local scale. We consider how the project behind one of the foremost population level indicators - the Living Planet Index - has evolved over the last 25 years, its value to the field of biodiversity monitoring, and how its components have portrayed a compelling account of the changing status of global biodiversity through its application at policy, research and practice levels. We explore ways the project can develop to enhance our understanding of the state of biodiversity and share lessons learned to inform indicator development and mobilise action., (© 2023. The Author(s).)

Published
2023
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18. Bending the curve of terrestrial biodiversity needs an integrated strategy.

Author

Leclère D, Obersteiner M, Barrett M, Butchart SHM, Chaudhary A, De Palma A, DeClerck FAJ, Di Marco M, Doelman JC, Dürauer M, Freeman R, Harfoot M, Hasegawa T, Hellweg S, Hilbers JP, Hill SLL, Humpenöder F, Jennings N, Krisztin T, Mace GM, Ohashi H, Popp A, Purvis A, Schipper AM, Tabeau A, Valin H, van Meijl H, van Zeist WJ, Visconti P, Alkemade R, Almond R, Bunting G, Burgess ND, Cornell SE, Di Fulvio F, Ferrier S, Fritz S, Fujimori S, Grooten M, Harwood T, Havlík P, Herrero M, Hoskins AJ, Jung M, Kram T, Lotze-Campen H, Matsui T, Meyer C, Nel D, Newbold T, Schmidt-Traub G, Stehfest E, Strassburg BBN, van Vuuren DP, Ware C, Watson JEM, Wu W, and Young L

Subjects
Diet, Diet, Vegetarian trends, Food Supply, Humans, Sustainable Development trends, Biodiversity, Conservation of Natural Resources methods, Conservation of Natural Resources trends, Environmental Policy trends, Human Activities trends
Abstract

Increased efforts are required to prevent further losses to terrestrial biodiversity and the ecosystem services that it  provides 1,2 . Ambitious targets have been proposed, such as reversing the declining trends in biodiversity 3 ; however, just feeding the growing human population will make this a challenge 4 . Here we use an ensemble of land-use and biodiversity models to assess whether-and how-humanity can reverse the declines in terrestrial biodiversity caused by habitat conversion, which is a major threat to biodiversity 5 . We show that immediate efforts, consistent with the broader sustainability agenda but of unprecedented ambition and coordination, could enable the provision of food for the growing human population while reversing the global terrestrial biodiversity trends caused by habitat conversion. If we decide to increase the extent of land under conservation management, restore degraded land and generalize landscape-level conservation planning, biodiversity trends from habitat conversion could become positive by the mid-twenty-first century on average across models (confidence interval, 2042-2061), but this was not the case for all models. Food prices could increase and, on average across models, almost half (confidence interval, 34-50%) of the future biodiversity losses could not be avoided. However, additionally tackling the drivers of land-use change could avoid conflict with affordable food provision and reduces the environmental effects of the food-provision system. Through further sustainable intensification and trade, reduced food waste and more plant-based human diets, more than two thirds of future biodiversity losses are avoided and the biodiversity trends from habitat conversion are reversed by 2050 for almost all of the models. Although limiting further loss will remain challenging in several biodiversity-rich regions, and other threats-such as climate change-must be addressed to truly reverse the declines in biodiversity, our results show that ambitious conservation efforts and food system transformation are central to an effective post-2020 biodiversity strategy.

Published
2020
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19. High accuracy acoustic relative humidity measurement in duct flow with air.

Author

van Schaik W, Grooten M, Wernaart T, and van der Geld C

Subjects
Calibration, Equipment Design, Gases analysis, Reproducibility of Results, Temperature, Acoustics instrumentation, Air, Humidity
Abstract

An acoustic relative humidity sensor for air-steam mixtures in duct flow is designed and tested. Theory, construction, calibration, considerations on dynamic response and results are presented. The measurement device is capable of measuring line averaged values of gas velocity, temperature and relative humidity (RH) instantaneously, by applying two ultrasonic transducers and an array of four temperature sensors. Measurement ranges are: gas velocity of 0-12 m/s with an error of ± 0.13 m/s, temperature 0-100 °C with an error of ± 0.07 °C and relative humidity 0-100% with accuracy better than 2 % RH above 50 °C. Main advantage over conventional humidity sensors is the high sensitivity at high RH at temperatures exceeding 50 °C, with accuracy increasing with increasing temperature. The sensors are non-intrusive and resist highly humid environments.

Published
2010
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