Results 141 to 150 of about 658,835 (343)

Disentangling conservation asymmetries through socio‐economic transboundary factors across the Alto Paraná Atlantic Forest of South America

open access: yesPeople and Nature, EarlyView.
Abstract Ecoregions are often defined based on homogeneous biophysical and ecological conditions and are optimal spatial units for designing conservation strategies. However, transboundary ecoregions such as the Alto Paraná Atlantic Forest (APAF) experience asymmetrical conservation outcomes, understood here as cross‐border differences, resulting from ...
Lía Montti   +16 more
wiley   +1 more source

Pergamum - Sistema informatizado da biblioteca da PUC/PR

open access: yesCiência da Informação, 1999
O objetivo deste trabalho é apresentar e enfatizar a importância da informática nos serviços inerentes à Biblioteca da Pontifícia Universidade Católica do Paraná/PUC-PR, agilizando nos processos técnicos (catalogação, classificação, indexação, seleção ...
Tania Mara Dias
doaj  

Post legal positivism: new paradigm of legal science (jurisprudence) and practice in Brazil [PDF]

open access: yes, 2012
The relation between law, moral, society and science is shifting in Brazil as it is changing in democratic contemporary societies. This paper proposes to reflect about this change in the Brazilian legal and social context.
Malheiros da Cunha Frota, Pablo   +1 more
core  

Mechanical, Thermal, and Microstructural Evaluation of Bio‐Based Polyurethane Composites Reinforced With Woven Jute and Flax

open access: yesPolymer Composites, EarlyView.
Graphical overview of the manufacturing and characterization of bio‐based polyurethane composites reinforced with woven jute and flax fibers produced by the VARTM process. Mechanical, thermal, and microstructural analyses reveal differences in stiffness, thermal stability, and interfacial behavior between the natural fiber composites.
Vanessa A. Santos   +3 more
wiley   +1 more source

Open‐land‐derived agroforestry and effects of abandonment of management of the main crop on ecosystem services and woody plant diversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Tropical forests are rapidly declining. One promising strategy to reverse the loss of tropical forest is the establishment of agroforestry on open land. We combined interviews with biodiversity surveys to learn general lessons from success and nonsuccess stories of the establishment of open‐land‐derived coffee agroforests in one of the world's ...
Lucas M. Fonzaghi   +3 more
wiley   +1 more source

Toxicity of aqueous extracts of Ilex paraguariensis A.St.‐Hil. about Euphorbia heterophylla L.

open access: yesPest Management Science, EarlyView.
Aqueous extracts of Ilex paraguariensis A.St.‐Hil. strongly inhibit Euphorbia heterophylla L. germination and early seedling growth, but show mild phytotoxicity on mature plants, paradoxically promoting biomass via antioxidants. Abstract BACKGROUND The escalating challenge of herbicide‐resistant weeds, exemplified by Euphorbia heterophylla L.
Tamara Alberton da Silva   +8 more
wiley   +1 more source

Chronic hepatitis C and fibrosis: evidences for possible estrogen benefits

open access: yesBrazilian Journal of Infectious Diseases
The main injury caused by hepatitis C virus is the hepatic fibrosis, as a result of a chronic inflammatory process in the liver characterized by the deposit of components from the extracellular matrix.
Liana Codes   +2 more
doaj   +1 more source

Nidificación del Chinchero Escamado (Lepidocolaptes falcinellus) [PDF]

open access: yes, 2011
We provide the first description of the nest of the Scalloped Woodcreeper (Lepidocolaptes falcinellus), its clutch size, nestlings, and nesting behavior from prospecting to fledging, based on 102 h of observation at a nest in the subtropical Atlantic ...
Bodrati, Alejandro   +1 more
core  

Thirty years of glyphosate‐resistant crops and weeds: Current situation and future prospects

open access: yesPest Management Science, EarlyView.
Since 1996, when the first glyphosate‐resistant crop was commercialized and the first resistant weed was reported, resistance has expanded globally. This review analyzes emergence patterns across weed species, crops, regions, resistance mechanisms, and herbicides.
Ricardo Alcántara‐de la Cruz   +7 more
wiley   +1 more source

Current aspects of antibiotic prophylaxis for upper gastrointestinal bleeding in cirrhosis patients

open access: yesBrazilian Journal of Infectious Diseases, 2002
Bacterial infection is a common complication in cirrhotic patients. The portal hypertension as well as the immune depression observed in these patients can explain this high incidence of bacterial infection.
Almeida Delvone, Paraná Raymundo
doaj  

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