14 research outputs found
Religious socialization among Malaysian Muslim adolescents: a family structure comparison
Despite the plethora of research on correlates of adolescent religiosity, few studies have examined the contribution of socialization factors to adolescent religiosity in the context of non-Western Muslim samples from different family contexts. To address this gap, the current study explored the contribution of parenting (direct socialization) and community engagement (indirect socialization) factors on religiosity among 895 Malaysian Muslim high school students from single-/non-parent and two-parent families. T-test results showed that religiosity was higher for students from two-parent families than single-/non-parent parent homes. After controlling for (a) social desirability, (b) gender and (c) school type, the hypothesized factors of: parental attachment, parental religious socialization, parental supervision, youth organization involvement, school attachment, and mosque involvement significantly predicted religiosity for the full sample of students from both types of families. Hierarchical regression results further revealed that while both indirect and direct parental socialization factors were stronger predictors of religiosity for two-parent families than single-/non-parent families, direct parental socialization effects were more robust. Implications of the findings are discussed
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Molecular and Dual-Isotopic Profiling of the Microbial Controls on Nitrogen Leaching in Agricultural Soils under Managed Aquifer Recharge
Nitrate (NO3-) leaching is a serious health and ecological concern in global agroecosystems, particularly those under the application of agricultural-managed aquifer recharge (Ag-MAR); however, there is an absence of information on microbial controls affecting NO3- leaching outcomes. We combine natural dual isotopes of NO3- (15N/14N and 18O/16O) with metagenomics, quantitative polymerase chain reaction (PCR), and a threshold indicator taxa analysis (TITAN) to investigate the activities, taxon profiles, and environmental controls of soil microbiome associated with NO3- leaching at different depths from Californian vineyards under Ag-MAR application. The isotopic signatures demonstrated a significant priming effect (P < 0.01) of Ag-MAR on denitrification activities in the topsoil (0-10 cm), with a 12-25-fold increase of 15N-NO3- and 18O-NO3- after the first 24 h of flooding, followed by a sharp decrease in the enrichment of both isotopes with ∼80% decline in denitrification activities thereafter. In contrast, deeper soils (60-100 cm) showed minimal or no denitrification activities over the course of Ag-MAR application, thus resulting in 10-20-fold of residual NO3- being leached. Metagenomic profiling and laboratory microcosm demonstrated that both nitrifying and denitrifying groups, responsible for controlling NO3- leaching, decreased in abundance and potential activity rates with soil depth. TITAN suggested that Nitrosocosmicus and Bradyrhizobium, as the major nitrifier and denitrifier, had the highest and lowest tipping points with regard to the NO3- changes (P < 0.05), respectively. Overall, our study provides new insight into specific depth limitations of microbial controls on soil NO3- leaching in agroecosystems
Molecular and Dual-Isotopic Profiling of the Microbial Controls on Nitrogen Leaching in Agricultural Soils under Managed Aquifer Recharge
Nitrate (NO3–) leaching is a serious
health and ecological concern in global agroecosystems, particularly
those under the application of agricultural-managed aquifer recharge
(Ag-MAR); however, there is an absence of information on microbial
controls affecting NO3– leaching outcomes.
We combine natural dual isotopes of NO3– (15N/14N and 18O/16O)
with metagenomics, quantitative polymerase chain reaction (PCR), and
a threshold indicator taxa analysis (TITAN) to investigate the activities,
taxon profiles, and environmental controls of soil microbiome associated
with NO3– leaching at different depths
from Californian vineyards under Ag-MAR application. The isotopic
signatures demonstrated a significant priming effect (P < 0.01) of Ag-MAR on denitrification activities in the topsoil
(0–10 cm), with a 12–25-fold increase of 15N–NO3– and 18O–NO3– after the first 24 h of flooding, followed
by a sharp decrease in the enrichment of both isotopes with ∼80%
decline in denitrification activities thereafter. In contrast, deeper
soils (60–100 cm) showed minimal or no denitrification activities
over the course of Ag-MAR application, thus resulting in 10–20-fold
of residual NO3– being leached. Metagenomic
profiling and laboratory microcosm demonstrated that both nitrifying
and denitrifying groups, responsible for controlling NO3– leaching, decreased in abundance and potential
activity rates with soil depth. TITAN suggested that Nitrosocosmicus and Bradyrhizobium, as the major nitrifier and
denitrifier, had the highest and lowest tipping points with regard
to the NO3– changes (P < 0.05), respectively. Overall, our study provides new insight
into specific depth limitations of microbial controls on soil NO3– leaching in agroecosystems
Localisation et mondialisation. Musique et société
À partir d'études portant sur la «diaspora noire» dans le Nouveau Monde, sur les formes récentes de l'afrocentrisme aux États-Unis ou sur les modes de relecture et de transformation de systèmes anciens lors de conflits locaux, le dossier «Localisation et mondialisation» est consacré à l'examen du concept de réseau appliqué à des situations sociales débordant de toutes parts l'approche classique de l'anthropologie. Dans un second dossier, c'est la question des relations entre musique et sociét..