Results 21 to 30 of about 1,871 (258)

Assessing uncertainties in land cover projections [PDF]

open access: yesGlobal Change Biology, 2016
AbstractUnderstanding uncertainties in land cover projections is critical to investigating land‐based climate mitigation policies, assessing the potential of climate adaptation strategies and quantifying the impacts of land cover change on the climate system.
Alexander, Peter   +37 more
openaire   +8 more sources

ORBIFOLD GROUPS, QUASI-PROJECTIVITY AND COVERS [PDF]

open access: yesJournal of Singularities, 2012
20 ...
Bartolo, Enrique Artal   +2 more
openaire   +2 more sources

DYNAMICS OF ILLUMINANCE INCIDENT ON THE LANW SURFACE IN THE SHADE OF VARIOUS WOODY SPECIES

open access: yesЮг России: экология, развитие, 2019
Aim. This paper is aimed at studying the relative light conditions (RLC) for lawns in the crown shade of light‐requiring and shade‐tolerant trees from the landscaping sites of Stavropol.Methods.
L. A. Grechushkina‐Sukhorukova
doaj   +1 more source

Ramified cover of varieties with nef cotangent bundle

open access: yesComptes Rendus. Mathématique, 2022
We construct examples to show that having nef cotangent bundle is not preserved under finite ramified covers. Our examples also show that a projective manifold with Stein universal cover may not have nef cotangent bundle, disproving a conjecture of Liu ...
Wang, Yiyu
doaj   +1 more source

Quasi-projective covers of right $S$-acts [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2014
In this paper $S$ is a monoid with a left zero and $A_S$ (or $A$) is a unitary right $S$-act. It is shown that a monoid $S$ is right perfect (semiperfect) if and only if every (finitely generated) strongly flat right $S$-act is quasi-projective.
Mohammad Roueentan, Majid Ershad
doaj  

Epimorphisms and maximal covers in categories of compact spaces

open access: yesApplied General Topology, 2013
The category C is "projective complete"if each object has a projective cover (which is then a maximal cover). This property inherits from C to an epireflective full subcategory R provided the epimorphisms in R are also epi in C. When this condition fails,
B. Banaschewski, A.W. Hager
doaj   +1 more source

Quasi-Projective Covers and Direct Sums [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
In this paper R R denotes an associative ring with an identity, and all modules are unital left R R -modules. It is shown that the existence of a quasi-projective cover for each module implies that each module has a projective cover. By a similar technique the following statements are shown to be equivalent: 1.
openaire   +2 more sources

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

Impact of weed infestation on projective soil cover changes during the sunflower vegetation period

open access: yesЛюдина і довкілля: Проблеми неоекології
Weed infestation is one of the key factors influencing the formation of plant cover in agroecosystems. In the context of sunflower cultivation, projective soil cover varies depending on the intensity of weed competition, especially during critical ...
M. V. Shevchenko, A. V. Olenchenko
doaj   +1 more source

Projections of random covering sets [PDF]

open access: yesJournal of Fractal Geometry, Mathematics of Fractals and Related Topics, 2015
We show that, almost surely, the Hausdor dimension s0 of a random covering set is preserved under all orthogonal projections to linear subspaces with dimension k > s_0 . The result holds for random covering sets with a generating sequence of ball-
Chen, Changhao   +3 more
openaire   +3 more sources

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