Results 21 to 30 of about 1,149,747 (305)

To Root or Not to Root? The Economics of Jailbreak [PDF]

open access: yesSSRN Electronic Journal, 2013
Abstract We construct a structural model that allows us to jointly estimate the demand for smartphones and paid apps using a Bayesian approach. Our data comes from more than 500 college students in Hong Kong and Shanghai. We find that the utility cost rather than the upfront monetary cost of jailbreaking smartphones determines its prevalence.
Leung, Tin Cheuk   +3 more
openaire   +1 more source

A root is a root is a root? Water uptake rates of Citrus root orders [PDF]

open access: yesPlant, Cell & Environment, 2010
ABSTRACTKnowledge about the physiological function of root orders is scant. In this study, a system to monitor the water flux among root orders was developed using miniaturized chambers. Different root orders of 4‐year‐old Citrus volkameriana trees were analysed with respect to root morphology and water flux.
Boris, Rewald   +2 more
openaire   +2 more sources

Plant roots sense soil compaction through restricted ethylene diffusion

open access: yesScience, 2021
Ethylene aplenty signals soil compaction It's tough to drive a spade through compacted soil, and plant roots seem to have the same problem when growing in compacted ground. Pandey et al.
Bipin K. Pandey   +15 more
semanticscholar   +1 more source

Root morphological and physiological traits are committed to the phosphorus acquisition of the desert plants in phosphorus-deficient soils

open access: yesBMC Plant Biology, 2023
Background Phosphorus (P) deficiency in desert ecosystems is widespread. Generally, desert species may allocate an enormous proportion of photosynthetic carbon to their root systems to adjust their P-acquisition strategies.
Yanju Gao   +3 more
doaj   +1 more source

Effects of short-term nitrogen and phosphorus addition on leaf stoichiometry of a dominant alpine grass [PDF]

open access: yesPeerJ, 2021
The effects of increasing nitrogen (N) and phosphorus (P) deposition on the nutrient stoichiometry of soil and plant are gaining improving recognition. However, whether and how the responses of N cycle coupled with P of the soil–plant system to external ...
YaLan Liu   +5 more
doaj   +2 more sources

The impact of the Lisbon Treaty on the development of EU immigration legislation

open access: yesCroatian Yearbook of European Law and Policy, 2009
Although the status of the Lisbon Treaty is still pending, the possible impact that it can have on the EU’s immigration legislation is worth analysing and discussing.
Lehte Roots
doaj   +1 more source

The Tree of Knowledge: The Biological Roots of Human Understanding

open access: yes, 2007
A review of The Tree of Knowledge: The Biological Roots of Human Understanding, by Humberto R. Maturana and Francisco J. Varela, 1998 [1987]. Revised Edition. Boston and London: Shambhala Publications, 269 pp. ISBN 0877736421. $29.95 USD.
Yves Laberge
semanticscholar   +1 more source

Non-invasive electrical and magnetic stimulation of the brain, spinal cord, roots and peripheral nerves: Basic principles and procedures for routine clinical and research application. An updated report from an I.F.C.N. Committee

open access: yesClinical Neurophysiology, 2015
These guidelines provide an up-date of previous IFCN report on “Non-invasive electrical and magnetic stimulation of the brain, spinal cord and roots: basic principles and procedures for routine clinical application” (Rossini et al., 1994).
P. Rossini   +23 more
semanticscholar   +1 more source

Roots of Autocracy [PDF]

open access: yesSSRN Electronic Journal, 2017
Exploiting a novel geo-referenced data set of population diversity across ethnic groups, this research advances the hypothesis and empirically establishes that variation in population diversity across human societies, as determined in the course of the exodus of humans from Africa tens of thousands of years ago, contributed to the differential ...
Oded Galor, Marc Klemp
openaire   +4 more sources

The New EURODAC Regulation: Fingerprints as a Source of Informal Discrimination

open access: yesBaltic Journal of European studies, 2015
The EURODAC Regulation establishes the database of the fingerprints of asylum seekers. In 2015, the new EURODAC Regulation came in force and some basic concepts that were not in the previous regulation have been changed.
Roots Lehte
doaj   +1 more source

Home - About - Disclaimer - Privacy