Zobrazeno 1 - 10
of 257
pro vyhledávání: '"Jan De Leeuw"'
Publikováno v:
Journal of Statistical Software, Vol 102, Pp 1-47 (2022)
The smacof package offers a comprehensive implementation of multidimensional scaling (MDS) techniques in R. Since its first publication (De Leeuw and Mair 2009b) the functionality of the package has been enhanced, and several additional methods, feat
Externí odkaz:
https://doaj.org/article/b2a1338628cb4a4ab32388c4d9d7fe0d
Autor:
Caroline K. Bosire, Nadhem Mtimet, Dolapo Enahoro, Joseph O. Ogutu, Maarten S. Krol, Jan de Leeuw, Nicholas Ndiwa, Arjen Y. Hoekstra
Publikováno v:
Heliyon, Vol 8, Iss 8, Pp e10069- (2022)
Externí odkaz:
https://doaj.org/article/36c3379a5caa423da0ceb83ae6a58937
Autor:
David K. Nkedianye, Joseph O. Ogutu, Mohammed Y. Said, Shem C. Kifugo, Jan de Leeuw, Paul Van Gardingen, Robin S. Reid
Publikováno v:
Pastoralism, Vol 10, Iss 1, Pp 1-25 (2020)
Abstract We analyse social demography, livelihood diversification and land tenure among the Maasai people inhabiting Kenya (three sites) and Tanzania (one site) with contrasting land tenure policies. In Kenya, land was communally owned in the rural A
Externí odkaz:
https://doaj.org/article/ed474f871dc14f1788c1fe49937a3bed
Autor:
Caroline K. Bosire, Nadhem Mtimet, Dolapo Enahoro, Joseph O. Ogutu, Maarten S. Krol, Jan de Leeuw, Nicholas Ndiwa, Arjen Y. Hoekstra
Publikováno v:
Heliyon, Vol 8, Iss 3, Pp e09006- (2022)
Population growth and rising affluence increase the demand for agricultural commodities. Associated growth in production increases dependency on natural resources in countries that attempt to meet part or all of the new demand locally. This study ass
Externí odkaz:
https://doaj.org/article/e2ec5c8da58b466795b147c357a95127
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Suspended sediment currents travel through channels on the ocean floor to deliver enormous volumes of sediment to the deep ocean. Here, using a new approach for scaled laboratory experiments, the authors show how feedback between these currents and t
Externí odkaz:
https://doaj.org/article/bde4f6b4f0094c8db458a7e859de939f
Autor:
Joshua Wafula, Yusuf Karimjee, Yvonne Tamba, Geoffrey Malava, Caroline Muchiri, Grace Koech, Jan De Leeuw, Josephat Nyongesa, Keith Shepherd, Eike Luedeling
Publikováno v:
Frontiers in Applied Mathematics and Statistics, Vol 4 (2018)
Designing and implementing biodiversity-based value chains can be a complex undertaking, especially in places where outcomes are uncertain and risks of project failure and cost overruns are high. We used the Stochastic Impact Evaluation (SIE) approac
Externí odkaz:
https://doaj.org/article/588dca4e31c24864b05b0876696b6ed4
Publikováno v:
Journal of World-Systems Research, Vol 15, Iss 1, Pp 48-85 (2015)
We review three decades of research linking social network methods with world systems theory. We identify four themes nested within two versions of a general social network methodologythe identification of network Roles and Position. The themes vary
Externí odkaz:
https://doaj.org/article/d52e471ab3254366a73a114a9ca8e5de
Publikováno v:
Remote Sensing, Vol 7, Iss 4, Pp 4048-4067 (2015)
The assessment of land degradation and the quantification of its effects on land productivity have been both a scientific and political challenge. After four decades of Earth Observation (EO) applications, little agreement has been gained on the magn
Externí odkaz:
https://doaj.org/article/c38905bf7db14732bfc4ae48ed184d38
Autor:
Jan de Leeuw, Anton Vrieling, Apurba Shee, Clement Atzberger, Kiros M. Hadgu, Chandrashekhar M. Biradar, Humphrey Keah, Calum Turvey
Publikováno v:
Remote Sensing, Vol 6, Iss 11, Pp 10888-10912 (2014)
Global insurance markets are vast and diverse, and may offer many opportunities for remote sensing. To date, however, few operational applications of remote sensing for insurance exist. Papers claiming potential application of remote sensing typicall
Externí odkaz:
https://doaj.org/article/970c92ac47a048dfae70d4b11c0cfe31
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 2, Iss 4, Pp 955-958 (2013)
The nature of map production and the dissemination of spatially referenced information have changed radically over the last decade. This change has been marked by an explosion of user generated spatial content via Web 2.0, access to a rising tide of
Externí odkaz:
https://doaj.org/article/fe41abc880714bf98c4d7de5009c6ab6