Results 61 to 70 of about 4,051 (172)

Robust Bernoulli Mixture Models for Credit Portfolio Risk

open access: yesMathematical Finance, Volume 36, Issue 3, Page 528-543, July 2026.
ABSTRACT This paper presents comparison results and establishes risk bounds for credit portfolios within classes of Bernoulli mixture models, assuming conditionally independent defaults that are stochastically increasing in a common risk factor. We provide simple and interpretable conditions on conditional default probabilities that imply a comparison ...
Jonathan Ansari, Eva Lütkebohmert
wiley   +1 more source

Amphibia, Hylidae, Osteocephalus exophthalmus Smith and Noonan, 2001: New country record and geographic distribution map, Venezuela

open access: yesCheck List, 2010
Osteocephalus exophthalmus Smith and Noonan is reported from Sierra de Lema in Venezuela, 190 km NW of thetype locality in Guyana. This is the first record of the species in Venezuela.
Barrio-Amoros, C. L.   +3 more
doaj  

Environmental Policy Without Implementation? A Review of Factors Contributing to Implementation Gaps in Low‐ and Middle‐Income Countries

open access: yesEnvironmental Policy and Governance, Volume 36, Issue 3, Page 611-635, June 2026.
ABSTRACT The sound formation of robust environmental policies is increasingly important for low‐ and middle‐income countries (LMICs) to achieve their national objectives and international commitments. However, policy implementation can be complex, and environmental policies may not be prioritised given other critical socio‐economic development issues ...
Rebecca K. M. Clube, Julia Tomei
wiley   +1 more source

A redescription of Anomaloglossus praderioi (La Marca, 1998) (Anura: Aromobatidae: Anomaloglossinae), with description of its tadpole and call

open access: yesPapéis Avulsos de Zoologia, 2010
Anomaloglossus praderioi was originally described as Colostethus praderioi by E. La Marca in 1998 on the basis of two male specimens. The present paper provides a redescription of the species on the basis of new material from Maringma Tepui in Guyana and
Philippe J.R. Kok
doaj   +1 more source

Rickettsiales in South America: A Systematic Review of Their Molecular Detection and Distribution in Arthropods and Vertebrates

open access: yesPublic Health Challenges, Volume 5, Issue 2, June 2026.
ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez   +3 more
wiley   +1 more source

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

open access: yesRemote Sensing in Ecology and Conservation, Volume 12, Issue 3, Page 323-348, June 2026.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner   +21 more
wiley   +1 more source

On an Aggregation Theory for Indicators Expressing Behaviors of Complex Systems With an Application to Sustainability

open access: yesSustainable Development, Volume 34, Issue 3, Page 3304-3321, June 2026.
ABSTRACT Certain attributes of large‐scale complex systems are often expressed through sets of indicators. For example, the sustainability of an entity, be it a nation, a city, an energy system, a corporation etc., can be effectively represented by indicators and corresponding data series.
Vassilis S. Kouikoglou   +1 more
wiley   +1 more source

Tropical Forests and Sustainability: The Role of Multilateral Financing in Latin America

open access: yesSustainable Development, Volume 34, Issue 3, Page 3249-3258, June 2026.
ABSTRACT The challenge of slowing deforestation and degradation in the tropical regions of Latin America requires financing mechanisms (public and private) that can enable actions to preserve and sustainably manage forest integrity. This paper begins by examining the strategy implemented by the World Bank to protect forest cover in tropical countries ...
Ángela Andrea Caviedes Conde   +2 more
wiley   +1 more source

Global overview of progress in respecting the contributions of traditional knowledge in biodiversity governance

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Recognition and engagement of Indigenous Peoples and local communities (IP&LCs) and other traditional knowledge (TK) holders in formal biodiversity governance remain limited, despite their significant contribution to the conservation and sustainable use of biodiversity through their knowledge, innovations, practices, and land stewardship.
Kinga Öllerer   +8 more
wiley   +1 more source

Psittacanthus corderoi, a new species of Loranthaceae from the colombia Amazonia

open access: yesCaldasia, 2016
Psittacanthus corderoi F. González, F. J. Roldán & Pabón-Mora, a species from the department of Amazonas, Colombia, is here described and illustrated for the first time. The new species is similar to P. lasianthus Sandwith, from Guyana and Venezuela, but
Favio González   +2 more
doaj   +1 more source

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