Results 81 to 90 of about 51,964 (204)

Farm‐scale Natural Capital Accounting: Unlocking the potential of natural capital to support sustainable agriculture

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 5, Page 1434-1461, May 2026.
Abstract The demand for information about property‐scale natural capital is growing rapidly as producers and supply chains respond to opportunities and pressures to report environmental performance information. Natural Capital Accounting offers promise but agreed methods for farm‐scale accounts are currently lacking.
James Q. Radford   +7 more
wiley   +1 more source

Background and Recent Advances in the Locata Terrestrial Positioning and Timing Technology

open access: yesSensors, 2019
Global Navigation Satellite System (GNSS) is the most widely used Positioning, Navigation, and Timing (PNT) technology in the world today, but it suffers some major constraints.
Chris Rizos, Ling Yang
doaj   +1 more source

Use of Prenasal Thickness, Nasal Bone Length and Their Ratio in Diagnosing Down Syndrome at 16‐25 weeks' of gestation in India: A Retrospective, Observational, Case Control Study

open access: yesiRADIOLOGY
Background It is found to have association of facial parameters with trisomy 21 fetuses (T 21). We have compared prenasal thickness (PNT), nasal bone length (NBL), and the PNT:NBL ratio of normal fetuses with fetuses with trisomy 21 (T 21) between 16 and
Mhaske Nilesh Madhukar   +4 more
doaj   +1 more source

TB Data Improvement in Nkembo Health Treatment Center in Libreville, Gabon

open access: yesTropical Medicine and Infectious Disease
Although the estimated tuberculosis (TB) incidence in Gabon is declining, there have been challenges with treatment coverage, HIV status and treatment outcome documentation.
Casimir Manzengo   +5 more
doaj   +1 more source

Resilient PNT: From PNT-Unit concept to first realization

open access: yes, 2013
Resilient determination of position, navigation and time (PNT) data of the vessel has been recognized as one core element of IMO’s e-Navigation strategy. As an associated member of the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA), the German Aerospace Center (DLR) is proposing the introduction of a shipside ...
Ziebold, Ralf   +6 more
openaire   +1 more source

Costly defense traits in structured populations

open access: yes, 2020
We propose a model for the dynamics of frequencies of a costly defense trait. More precisely, we consider Lotka-Volterra-type models involving a prey (or host) population consisting of two types and a predator (or parasite) population, where one type of ...
Hutzenthaler, Martin   +2 more
core  

Emerging Technologies: the digital revolution around and above us

open access: yesGEOmedia, 2017
Ubiquitous Localization and Timing, Ubiquitous Sensing, Ubiquitous Connectivity, 3D Digital Modeling: these four main technological trends are triggering an epochal transition in the history of mankind, characterized by an increasing predominance of ...
Marco Lisi
doaj  

Da Regulamentação à Promoção - o rural nos planos nacionais de turismo (1985-2011)

open access: yesRevista de Economia e Sociologia Rural, 2015
Os Planos Nacionais de Turismo (PNT) constituem documentos importantes para uma melhor compreensão das representações e dos significados sociais do rural e do turismo rural em Portugal. O presente artigo, procurando debater estas questões, tem por base a
Maria João Carneiro   +3 more
doaj   +1 more source

Demand and key technology for a LEO constellation as augmentation of satellite navigation systems

open access: yesSatellite Navigation
A Low Earth Orbit (LEO) constellation augmenting satellite navigation is important in the future development of Global Navigation Satellite System (GNSS).
Yuanxi Yang   +4 more
doaj   +1 more source

Discrete Quantum Gravity

open access: yes, 2011
We discuss the causal set approach to discrete quantum gravity. We begin by describing a classical sequential growth process in which the universe grows one element at a time in discrete steps.
Gudder, Stan
core  

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