Results 41 to 50 of about 580,839 (314)

Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes   +2 more
wiley   +1 more source

Felipponea (Leucodontaceae, Musci) : a new genus for Africa ; to include ‘Leucodon maritimus’ and L. assimilis [PDF]

open access: yes, 2001
Felipponea assimilis (Müll.Hal.) O’Shea is the correct name to be used for all African collections of Felipponea, a species found in Uruguay, Brazil, Bolivia, southern and eastern Africa and the East African islands. Hypnum maritimum Müll.Hal.
O’Shea, Brian J.
core  

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

Retrospective study of 668 cultures for mycobacteria in a reference hospital for AIDS in Southern Brazil

open access: yesBrazilian Journal of Infectious Diseases
Although AIDS patients in other countries are frequently diagnosed as having atypical mycobacterial infection, in Southern Brazil there is a clinical impression that Mycobacterium tuberculosis is the rule rather than the exception.
Alessandro Comarú Pasqualotto   +4 more
doaj   +1 more source

Age and growth of Zapteryx brevirostris (Elasmobranchii: Rhinobatidae) in southern Brazil [PDF]

open access: yes, 2018
Age and growth studies are fundamental to successful fisheries management. Zapteryx brevirostris (Muller & Henle, 1841) is distributed off the Brazilian continental shelf and this species is assessed as "Vulnerable" in the Red List of the International ...
Carmo, Wanessa P. D.   +2 more
core   +4 more sources

Temperature Sensitivity and Adaptation of Cereal Yields: Empirical Evidence From Italy

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper investigates the evolving temperature sensitivity and climate adaptation of cereal yields in Italy from 1952 to 2023, using province‐level data for maize, common wheat, and durum wheat. Employing panel data econometric methods, we estimate yield responses to heat exposure, changes in sensitivity over time, and adaptation to climate ...
Paolo Nota   +2 more
wiley   +1 more source

Depressive Symptoms and Associated Factors among People Living with HIV/AIDS

open access: yesJournal of the International Association of Providers of AIDS Care, 2015
The purpose of this study was to evaluate the prevalence of depressive symptoms and associated variables among people living with HIV/AIDS (PLWHA) in a specialized treatment center in a city located in southern Brazil.
Márcio José Dal-Bó MD   +7 more
doaj   +1 more source

Indicators of violence and asthma: An ecological study

open access: yesAllergology International, 2015
Background: Global studies on asthma point to socioeconomic status as one of the main variables in terms of prevalence and disease severity in various parts of the world.
Fábio de Oliveira Tabalipa   +4 more
doaj   +1 more source

Larra bicolor Fabricius (Hymenoptera: Crabronidae): its distribution throughout Florida [PDF]

open access: yes, 2009
We document the presence of Larra bicolor Fabricius (Hymenoptera: Crabronidae) in 46 of Florida's 67 counties. The species is represented by two stocks.
Blount, Ann C.   +4 more
core  

Traceability of Agri‐Food Products: The Key to Conscious Trade

open access: yesAgribusiness, EarlyView.
ABSTRACT Globalization and growing concerns about sustainability have led to improvements in product traceability, quality, and sustainability. Traceability contributes to environmental protection and supports sustainable development by fostering transparency in agricultural practices and encouraging the responsible use of resources.
Scarlett Queen Almeida Bispo   +5 more
wiley   +1 more source

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