Results 81 to 90 of about 26,851 (247)

17‐epi‐Melianodiol, a new protolimonoid from Melia azedarach fruits, exhibits larvicidal activity and is associated with oxidative imbalance and midgut epithelial damage in Aedes aegypti larvae

open access: yesPest Management Science, EarlyView.
The bio‐guided phytochemical study resulted in the new compound 17‐epi‐melianodiol. The compound eliminated 100% of Aedes aegypti larvae at 100 ppm, causing pronounced morphological changes, cuticular damage, and extensive vacuolization. Abstract BACKGROUND In Brazil, Aedes aegypti is the primary vector of arboviruses such as dengue, chikungunya ...
Kethleen Duarte Crespo Soares   +8 more
wiley   +1 more source

CARLOS DE OLIVEIRA E OS CONTOS TRADICIONAIS PORTUGUESES

open access: yesRevista Crioula, 2007
THE AIM OF THIS WORK IS TO COMPARE THE CHAPTER XIX OF THE NOVEL CASA NA DUNA, BY CARLOS DE OLIVEIRA, WITH ITS MAIN POPULAR ORIGINS (TWO TRADITIONAL PORTUGUESE SHORT STORIES: "O CEGO E O MEALHEIRO" AND "AS BARRAS DE OURO"), TOGETHER WITH ANOTHER REFINED INTERPRETATION (THE SHORT STORY "O TESOURO", BY ECA DE QUEIROS). THE ASPECT ANALYZED FOCALIZES ON THE
openaire   +2 more sources

Essential oils as bioherbicides: effects of orange and citronella oils on weed germination and early growth

open access: yesPest Management Science, EarlyView.
Essential oils from orange and citronella showed dose‐dependent inhibition of weed germination and early growth, highlighting their potential as bioherbicides and sustainable tools for integrated weed management. Abstract BACKGROUND Increasing selection of herbicide‐resistant weed biotypes has intensified the search for alternatives to the intensive ...
Geovana Rocha Marzochi   +9 more
wiley   +1 more source

Assessing the Effects of Biodiesel Production on Sustainability: A Bayesian Two‐Stage Data Envelopment Analysis Approach

open access: yesSustainable Development, EarlyView.
ABSTRACT Sustainable development transforms production systems, requiring integrated environmental, social, and economic strategies. Energy systems are key agro‐industrial supply chains in developing countries. Brazil's soybean supply chain impacts Gross Domestic Product, mainly through exports.
Aline Veronese da Silva   +3 more
wiley   +1 more source

How Aligned Are Citizen Preferences With the 15‐Minute Cities Paradigm? An International Survey and K‐Means Clustering Study

open access: yesSustainable Development, EarlyView.
ABSTRACT This study investigates how citizens' mobility preferences align with the principles of the 15‐Minute City (15mC), addressing three research questions: what access times and transport modes citizens consider acceptable, whether mobility preference can be clustered, and which services are perceived incompatible with the 15mC.
Maria Perales‐Eguiluz   +3 more
wiley   +1 more source

The Employment of Hydrogen Peroxide in Water Disinfection Poses a Threat to Aquatic Ecosystems Because of Its Toxicity to Nontarget Organisms

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Hydrogen peroxide is widely used in water and wastewater treatment, particularly in advanced oxidation processes that aid in the degradation of compounds and microbial disinfection. Despite concerns about potential environmental contamination, its impact on freshwater ecosystems remains inadequately studied.
Letícia Queiroz Almeida   +7 more
wiley   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

The Trabalho Poético by Carlos de Oliveira

open access: yes, 2011
The present work aims at to analyze the Carlos de Oliveira’s poetry, neo-realist portuguese writer, standing out, over all, the presence of the reality and its conscience of the poetical accomplishment as artsian work. As neo-realist poet, first a reflection on the historical period, its characteristics and implications is presented.
openaire   +1 more source

The drawing that survives in the air: Carlos de Oliveira’s Peasant House in Guernica

open access: yes, 2021
Na primeira seção de Entre duas memórias (1971), no poema “Descrição da guerra em Guernica”, Carlos de Oliveira realiza uma ekphrasis do quadro Guernica (1937) de Pablo Picasso. Pretendemos abordar a leitura que Oliveira faz da casa camponesa na tela de Picasso, inscrevendo a gândara portuguesa em Guernica através de elementos recorrentes em sua obra ...
Candal, Thalles, Salles, Luciana
openaire   +1 more source

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