Buscar recursos académicos

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...

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...

This critical reflection asks what contributions a research partnership, active between 1997 and 2014, made to knowledge about student learning in higher education. It focuses on three overarching projects. The first, on...

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...

Background A new approach to estimating gene carrier rates was introduced in 2019, relying on the frequency of pathogenic/likely pathogenic (P/LP) variants from ClinVar in a large, population sequencing database (Genome ...

El género Erythroxylum muestra una gran variedad en cuanto a sus actividades biológicas. Para su estudio se determinó la citotoxicidad preliminar de extractos de E. confusum Britt. evaluando las diferentes épocas de ...

Networking together hundreds or thousands of cheap microsensor nodes allows users to accurately monitor a remote environment by intelligently combining the data from the individual nodes. These networks require robust wi...

Abstract A DTPA soil test was developed to identify near‐neutral and calcareous soils with insufficient available Zn, Fe, Mn, or Cu for maximum yields of crops. The extractant consists of 0.005 M DTPA (diethylenetriami...

Wireless distributed microsensor systems will enable the reliable monitoring of a variety of environments for both civil and military applications. In this paper, we look at communication protocols, which can have signif...