Results 41 to 50 of about 438,956 (247)

A Zona Tectônica Teixeira Terra Nova - ZTTTN - Fundamentos da Geologia Regional e Isotópica [PDF]

open access: yesGeologia USP. Série Científica, 2005
Uma zona tectônica linear, de forma sigmoidal, ocorre de Teixeira (Paraíba, ao norte-nordeste) a Terra Nova (Pernambuco,ao sul-sudoeste), com disposição diagonal ao domínio da Zona Transversal - ZT, que é a porção central da ProvínciaBorborema, de forma ...
Benjamim Bley de Brito Neves   +4 more
doaj  

Chemistry Composition and Bioaccessibility Study of Phenolic Compounds and Carotenoids of New Brazilian Biofortified Sweet Potato “CIP BRS Nuti”

open access: yesFood Chemistry International, EarlyView.
Phenolic compounds of sweet potato CIP BRS Nuti were evaluated for the first time. Catechin, epicatechin, and procyanidin B1 exhibited high bioaccessibility. ABSTRACT Sweet potatoes biofortified in carotenoids have been an alternative to combat malnutrition in vulnerable populations. This work is the first comprehensive study of the bioactive potential
Maria Carla Cândido da Silva   +7 more
wiley   +1 more source

Dinámica de ocupación de suelo y de fragmentación de los ecosistemas naturales en el valle central de México [PDF]

open access: yes, 2014
El valle central de México es un territorio prioritario para la conservación de la biodiversidad debido a su alto grado de endemismo de especies de flora y fauna. En esta misma zona existe una gran cantidad de Áreas Naturales Protegidas (ANP).
Imbernon, Jacques   +1 more
core  

A review of the impact of micro‐ and nanoplastics on female reproduction: What we know and gaps in knowledge

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Micro‐and nanoplastics (MNPs) are breakdown products of plastics, and humans are exposed to these particles through air, water, food, and soil. There is a growing concern that human exposure to MNPs negatively impacts health. In this review we will discuss the potential health impact of MNPs on ovarian function and the hypothalamic–pituitary ...
Sanchayana Raghuvir   +2 more
wiley   +1 more source

Padrões de dominância e raridade da assembléia de peixes ao longo de gradientes espaciais no reservatório de Itaipu, Estado do Paraná, Brasil - DOI: 10.4025/actascibiolsci.v25i1.2085

open access: yesActa Scientiarum: Biological Sciences, 2008
Padrões de dominância e raridade da assembléia de peixes no reservatório de Itaipu foram avaliados e relacionados com os gradientes longitudinal (dividido nas zonas fluvial, intermediária e lacustre) e transversal (dividido em trechos lóticos e lênticos ...
Edson Fontes de Oliveira   +2 more
doaj   +1 more source

Carbon, Nitrogen, and Corresponding Stable Isotope Signatures Reveal Channel Banks as Major Sediment Sources in a Tropical Agricultural Watershed

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Uncertainties about the applicability of δ13C and δ15N as tracers of sediment sources in tropical river basins highlight the need for more in‐depth investigations of these isotopes. This study therefore assessed the effectiveness of δ13C and δ15N signatures in discriminating sediment sources in an agricultural catchment in Northeast Brazil ...
Fábio Farias Amorim   +10 more
wiley   +1 more source

Damage-imperfection indicators for the assessment of multi-leaf masonry walls under different conditions [PDF]

open access: yes, 2018
The complexity of multi-leaf masonry walls suggests further researches on the dy- namic behaviour mainly characterized by incoherent response between the different layers.
Aldreghetti, Ivano   +6 more
core  

Contribuição de uma seção gravimétrica transversal ao estudo da estruturação litosférica na porção setentrional da Província Borborema, NE do Brasil [PDF]

open access: yes, 2011
Este trabalho apresenta um modelo gravimétrico 2,5D gerado a partir de 315 novas estações gravimétricas levantadas ao longo de uma seção transversal NW-SE com 750 km de extensão na porção setentrional da Província Borborema, NE do Brasil.
Castro, David Lopes de   +4 more
core   +2 more sources

Potential distribution and susceptibility of Coffea arabica L. to climate change impacts

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Ecological niche models (ENMs) are vital for understanding the impact of historical factors on ecosystems and predicting future climate change scenarios. These models help assess how environmental shifts affect agricultural species like coffee, which supports millions of people globally.
Yuliana Grisel García‐Martínez   +1 more
wiley   +1 more source

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