Results 61 to 70 of about 44,348 (282)

Coherence Between Climate and Land Use Polices of the European Union, Brazil, and Indonesia: A Primer to Analyze Potential GHG Leakage

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Incoherence between national land use policies may weaken climate mitigation efforts by creating conditions under which agricultural and forestry production and GHG emissions are displaced across borders (leakage). Coherence depends on constellations and prioritization of national policy aims in land use (production) and climate (conservation).
Heiner von Lüpke   +8 more
wiley   +1 more source

Biodiversity, threats and conservation challenges in the Cerrado of Amapá, an Amazonian savanna

open access: yesNature Conservation, 2017
An Amazonian savanna in northern Brazil known as the Cerrado of Amapá is under imminent threat from poor land-use planning, the expansion of large-scale agriculture and other anthropogenic pressures. These savannas house a rich and unique flora and fauna,
Karen Mustin   +14 more
doaj   +3 more sources

Diazotrophs Show Signs of Restoration in Amazon Rain Forest Soils with Ecosystem Rehabilitation. [PDF]

open access: yes, 2020
Biological nitrogen fixation can be an important source of nitrogen in tropical forests that serve as a major CO2 sink. Extensive deforestation of the Amazon is known to influence microbial communities and the biogeochemical cycles they mediate. However,
Bohannan, Brendan JM   +5 more
core   +3 more sources

Antioxidant and Cytotoxic Properties of Piper spp. Volatile Oils That Inhibit Pathogenic Microorganisms

open access: yesFlavour and Fragrance Journal, EarlyView.
The samples were fungicidal against Candida, with MICs ranging from 62.5 to 250 μg/mL, and fungistatic against Penicillium adametzii, Aspergillus flavus and A. niger, with MICs of 1000 μg/mL. The volatile oils of Piper aduncum and Piper marginatum reduced the viability of MDA‐MB231 cells.
Midiã R. Oliveira   +11 more
wiley   +1 more source

Pre-Columbian floristic legacies in modern homegardens of Central Amazonia. [PDF]

open access: yesPLoS ONE, 2015
Historical ecologists have demonstrated legacy effects in apparently wild landscapes in Europe, North America, Mesoamerica, Amazonia, Africa and Oceania. People live and farm in archaeological sites today in many parts of the world, but nobody has looked
Juliana Lins   +5 more
doaj   +1 more source

Seasonal drivers of plant–soil–microbial community structure and functions in Western Himalayan grasslands, Pakistan

open access: yesGrassland Research, EarlyView.
Plant species richness was greater in summer in both alpine and subalpine grassland ecosystems. Soil moisture demonstrates significant positive correlations with soil organic carbon and total nitrogen across seasonal periods. Microbial α‐diversity peaks during summer but maintains functional stability across seasons.
Huma Ali   +4 more
wiley   +1 more source

Mushroom tyrosinase inhibitory activity and major fatty acid constituents of Amazonian native flora oils

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2012
In order to treat hyperpigmentation-related problems, there has been a global trend in developing cosmetics claiming to have skin-whitening properties, which act by inhibiting melanin biosynthesis.
Raquel da Silva Teixeira   +5 more
doaj   +1 more source

Dynamic Profiling of Circulating Tumor Cells and MYC/PTEN Alterations in Prostate Cancer Patients Undergoing Radical Prostatectomy in Amazon Population

open access: yesMolecular Carcinogenesis, EarlyView.
ABSTRACT Prostate cancer (PCa) is the second most frequently diagnosed malignancy among men and the sixth leading cause of cancer‐related mortality worldwide. Radical prostatectomy remains the standard treatment for localized disease; however, approximately one‐third of patients develop biochemical recurrence within 10 years. Although prostate‐specific
Juliana Ramos Chaves   +7 more
wiley   +1 more source

Seed dispersal by macaws shapes the landscape of an Amazonian ecosystem

open access: yesScientific Reports, 2017
Seed dispersal is one of the most studied plant–animal mutualisms. It has been proposed that the dispersal of many large-seeded plants from Neotropical forests was primarily conducted by extinct megafauna, and currently by livestock.
Adrián Baños-Villalba   +5 more
doaj   +1 more source

Amazonian Plant Natural Products: Perspectives for Discovery of New Antimalarial Drug Leads

open access: yesMolecules, 2013
Plasmodium falciparum and P. vivax malaria parasites are now resistant, or showing signs of resistance, to most drugs used in therapy. Novel chemical entities that exhibit new mechanisms of antiplasmodial action are needed.
Lucio H. Freitas-Junior   +10 more
doaj   +1 more source

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