Results 41 to 50 of about 24,698 (225)

Standard survey methods for estimating colony losses and explanatory risk factors in Apis mellifera [PDF]

open access: yes, 2013
This chapter addresses survey methodology and questionnaire design for the collection of data pertaining to estimation of honey bee colony loss rates and identification of risk factors for colony loss.
AAPOR   +35 more
core   +2 more sources

Successional and native forests predict the occurrence and infection status of Chagas disease vectors in Panama

open access: yesJournal of Applied Ecology, Volume 63, Issue 1, January 2026.
Findings here show that successional forest predicts greater kissing bug infestation risk in palm trees, whereas native forest predicts lower kissing bug occurrence but greater infection with T. cruzi. These insights can guide land use planning towards vegetation management practices that help minimize T. cruzi transmission risks for rural communities.
Juliana Hoyos   +10 more
wiley   +1 more source

Aggregation of Explanatory Factor Levels in a Binomial Logit Model: Generalization to the Multifactorial Unsaturated Case La agregación de niveles en un factor explicativo del modelo logit binomial: generalización al caso multifactorial no saturado

open access: yesRevista Colombiana de Estadística, 2012
We discuss a situation in which, once a logit model is fitted to the data in a contingency table, some factor levels are grouped. Generally, researchers reapply a logit model on the pooled data, however, this approach leads to the violation of the ...
SURENDRA SINHA   +2 more
doaj  

The Propensity of Rural Youth to Take Rain‐Fed Smallholder Farming as Their Livelihood Strategy in KwaZulu‐Natal (South Africa): A Multinomial Logit Analysis

open access: yesPoverty &Public Policy, Volume 17, Issue 4, December 2025.
ABSTRACT With most unemployed youth residing in rural areas of South Africa, incentivising youth participation in smallholder farming can help address the increasing youth unemployment crisis. The study integrated the theory of planned behavior and the sustainable livelihood framework to investigate the factors influencing rural youth participation in ...
Humbulani Portia Rambuda   +2 more
wiley   +1 more source

River Barriers and Spatial Constraints: Unveiling the Factors Shaping Species Distribution in the Amazonian Rainforest

open access: yesJournal of Biogeography, Volume 52, Issue 12, December 2025.
ABSTRACT Aim We aimed to quantify the relative contributions of geographic distance, environmental variation, and riverine barriers to shaping species distributions across the Amazon forest. Location Amazon forest, Brazil. Time Period Present. Major Taxa Studied Class Arachnida; Order: Opiliones (harvestmen).
Cristian de Sales Dambros   +3 more
wiley   +1 more source

Estimando valor de tempo de viagem com diferentes fontes de dados utilizando modelos logit [PDF]

open access: yesJournal of Transport Literature, 2013
A estimação de parâmetros de valor de tempo de viagem - VTV - pode ser feita utilizando metodologias diversas divididas em duas vertentes de especificação funcional a de equações estruturadas com base na teoria econômica e a essencialmente estatística com múltiplas equações.
Silva, Francisco Gildemir Ferreira da   +1 more
openaire   +3 more sources

Modelos de predição da natimortalidade em suínos

open access: yesRevista Brasileira de Zootecnia, 2003
Analisaram-se 335 dados de partos e leitegadas, pertencentes a 102 fêmeas Large White, nascidos entre 1985 e 1996, nas estações de setembro a fevereiro e março a agosto, na cidade do Recife, Estado de Pernambuco.
Kleber Régis Santoro   +2 more
doaj  

The probability of default in internal ratings based (IRB) models in Basel II: an application of the rough sets methodology [PDF]

open access: yes, 2009
El nuevo Acuerdo de Capital de junio de 2004 (Basilea II) da cabida e incentiva la implantación de modelos propios para la medición de los riesgos financieros en las entidades de crédito.
Cossío Silva, Francisco José (Coordinador)   +2 more
core  

Using accelerometer‐based behavioural classification to enhance scavenger conservation

open access: yesJournal of Applied Ecology, Volume 62, Issue 11, Page 2987-3004, November 2025.
We provide a tool to help identify vulture feeding hotspots, supporting carcass management efforts to prevent poisoning. Integrated with near real‐time tracking, our model can support global efforts to combat scavenger poisoning. The training dataset, model and codes are provided in a user‐friendly platform, along with a conceptual framework, to ...
Gideon Vaadia   +13 more
wiley   +1 more source

Condiciones y determinantes de la internacionalización de las empresas industriales colombianas: una aproximación cuantitativa en el ámbito de la firma

open access: yesApuntes del CENES, 2014
En los últimos diez años se ha visto un impulso por parte de las empresas colombianas en el ofrecimiento de sus productos en los mercados internacionales en coordinación con los demás países de América Latina. En este sentido, el objetivo de este trabajo
Héctor Alberto Botello Peñaloza   +1 more
doaj   +1 more source

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