Buscar recursos académicos

Abstract The purpose of this study was to evaluate how universal adhesives affected the proliferation of gingival fibroblasts and human dental pulp stem cells by measuring cell viability at different time points: 1 min,...

ABSTRACT White-sand vegetation (campinarana) is a type of vegetation restricted to oligotrophic and highly leached white sand soils in the Amazon phytogeographic domain that includes grassland to forest phytophysiognomie...

Antimicrobial finishings protect users from pathogenic and odor-generating microorganisms, which are of medical and hygiene concerns. Controlled release is a useful approach to obtain antimicrobial finishings in several ...

Biostimulation and bioaugmentation are promising for remediating acid in-situ leaching (AISL) U mine groundwater, yet their efficiencies, mechanisms, and acid stress regulation remain unclear. This study collected ground...

Abstract Background Nanodelivery represents a promising strategy to enhance pesticide efficacy while reducing associated environmental risks. Mesoporous silica nanospheres (MSNs) can serve as effective nanocarriers but i...

Di-(2-ethylhexyl) phthalate (DEHP) is a ubiquitous environmental endocrine disruptor that leaches from polyvinyl chloride products and metabolizes to mono-(2-ethylhexyl) phthalate (MEHP), causing spermatogenic dysfunctio...

Há enigmas e soluções manifestos e latentes no livro de Roberto Cardoso de Oliveira.* E entre eles o supremo enigma da Antropologia, que se pode formular, de maneira muito simples (e até meio simplista), na pergunta ...

Cured-in-place pipe (CIPP) technology is widely used for pipeline rehabilitation, but curing emissions and leachates may introduce complex chemical mixtures into air and drinking water, raising environmental health conce...

Exotic type deposits include several species of minerals, such as atacamite, chrysocolla, copper pitch, and copper wad. Among these, copper pitch and copper wad have considerable concentrations of manganese. However, the...

Mineral-associated organic matter, the dominant form of relatively stable carbon (C) in soil, often co-occurs with reactive iron (Fe) and aluminum (Al) phases across soils. Yet, how organo-metallic associations at the mo...

The materials for medical application are normally consisted of metal, ceramic, and polymer. Each material has its own limitations such as corrosion in metal, the brittleness of ceramic, and the high temperature problem ...

We evaluated the effects of grazing on C and N belowground pools by comparing 15 grazing-exclosure pairs across the Río de la Plata grasslands of Uruguay and Argentina. We measured C and N pools of belowground biomass, ...

The growing global demand for meat and particularly in countries such as Brazil is expected to increase intensive animal production. Consequently the main pollutants of interest are nitrogen (N), phosphorus (P) and green...

The multielement composition and nutritional value of "dumosa" (Ilex dumosa) (ID),"yerba mate" (I. paraguariensis) (IP) and their commercial 70:30 mixture (ID:IP, w/w) in crude drug, brewed mate and tea-bag-like infusion...

Ahipa roots chemical composition and physiological parameters were characterised; ahipa flour preparation procedures were selected and the chemical composition and functional properties of these products were studied. Ah...

Contamination with anthropogenic debris, such as plastic and paint particles, has been widely investigated in the global marine environment. However, there is a lack of information regarding their presence in marine prot...

La población, en condiciones más o menos normales, está en estrecha relación con las líneas de desarrollo de muchas actividades, tanto de servicios como productivas, existentes en las distintas regiones que se consi...

Abstract Residues of pharmaceuticals are gradually accumulating in surface water resources because of the disposal of wastewater effluent. For the present study, four surface water resources (rivers and streams) that rec...

This special issue of Student Success celebrates the work of Professor Ella Kahu and her substantial contribution to the advancement of our collective understanding of student engagement. In June 2024 Professors Karen Ne...

SUMMARY The slash and burn method was studied with respect to changes on the chemical composition in the top-soil layer (upper 20 cm) of yellow latosols (about 85% of the total area) and hydromorphic soils (about 1% of t...

The parabens, alkylic esters of p-hydroxybenzoic acid, were synthesized using trifluoromethanesulfonic acid immobilized on zirconium oxide (zirconia) as catalyst. The oxide was obtained by the sol–gel method, using ure...

Introduction Sarcoidosis is a heterogeneous granulomatous disease with highly variable clinical trajectories, yet no validated biomarkers exist to distinguish progressive sarcoidosis (P-sarcoidosis) from non-progressive ...

Abstract Background Nonhemorrhagic ascites (NHA) can be caused by cardiac diseases (cNHA) and noncardiac diseases (ncNHA). N‐terminal brain natriuretic peptide (NT‐proBNP), cardiac troponin‐I (cTnI), and point‐of...