Results 21 to 30 of about 6,790 (156)

Discovery of the Isotopes with 11 <= Z <= 19

open access: yes, 2011
A total of 194 isotopes with 11 $\le$ Z $\le$ 19 have been identified to date. The discovery of these isotopes which includes the observation of unbound nuclei, is discussed.
Ajzenberg-Selove   +139 more
core   +1 more source

Managing the nutrition of plants and people [PDF]

open access: yes, 2012
One definition of food security is having sufficient, safe, and nutritious food to meet dietary needs. This paper highlights the role of plant mineral nutrition in food production, delivering of essential mineral elements to the human diet, and ...
Broadley, M. R.   +2 more
core   +2 more sources

Seasonal and Geologic Controls on Submarine Groundwater Discharge‐Derived Nutrient Fluxes to Two Coastal Embayments

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract Submarine groundwater discharge and porewater exchange are critical but often overlooked sources of nutrients to coastal systems. This study investigates how sediment permeability and summer‐winter seasonal dynamics influence the magnitude and biogeochemistry of nutrient fluxes from submarine groundwater discharge and porewater exchange ...
Moira Taylor   +3 more
wiley   +1 more source

Evaluation of Effects of Phosphorus Concentration on Microbial Population and Material Flux in Aquatic Microcosm Using Radioisotope Tracer

open access: yesJapanese Journal of Water Treatment Biology, 2003
In this study, effects of phosphorus concentration on aquatic microcosms were evaluated in terms of microbial population dynamics and the photosynthetic activity that is the starting point of the material flux. Microcosms that consist of algae Chlorella vulgaris, bacteria Pseudomonas putida and ciliate Cyclidium glaucoma were incubated using media that
TAKASHI KONDO   +4 more
openaire   +2 more sources

Differences in Recycled Amendment Phosphorus Solubility and Transport When Interfaced to Soils of Dissimilar Characteristics

open access: yesSoil Use and Management, Volume 42, Issue 2, April‐June 2026.
ABSTRACT Increasing phosphorus (P) fertilizer use efficiency from bio‐based waste products (i.e., recycled amendments) requires promoting a larger proportion of bioavailable P in soil for plant uptake. Therefore, this study aimed to elucidate how recycled amendment P solubility and movement vary when interfaced with soils of contrasting characteristics.
Aimée Schryer   +6 more
wiley   +1 more source

Barnes Hospital Bulletin [PDF]

open access: yes, 1967
https://digitalcommons.wustl.edu/bjc_barnes_bulletin/1017/thumbnail ...

core   +1 more source

A Temporally Consistent Spatial Gradient in Methane Ebullition From a Eutrophic Lake

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 3, March 2026.
Abstract Gas bubble emission (ebullition) from lake sediment is a prominent source of the greenhouse gas methane (CH4) to the atmosphere, but the stochastic nature of bubble release and thus high variability in space and time makes the estimation of lake CH4 ebullition challenging.
S. Moras   +3 more
wiley   +1 more source

Stable BF2 Boracycles as Versatile Reagents for Selective Ortho C–H Functionalization

open access: yesAngewandte Chemie, Volume 138, Issue 8, 16 February 2026.
We report a robust, metal‐free and scalable synthesis of stable BF2 boracycles via directed ortho CH borylation, delivering isolable, shelf‐stable reagents without chromatographic purification. These BF2 boracycles exhibit unique and tunable reactivity, enabling highly selective ipso‐functionalization across a broad range of transformations.
Ganesh H. Shinde   +11 more
wiley   +1 more source

Cell Calcification Models and Their Implications for Medicine and Biomaterial Research

open access: yesAdvanced Healthcare Materials, Volume 15, Issue 6, 9 February 2026.
Calcification, is the process by which the tissues containing minerals are formed, occurring during normal physiological processes, or in pathological conditions. Here, it is aimed to give a comprehensive overview of the range of cell models available, and the approaches taken by these models, highlighting when and how methodological divergences arise,
Luke Hunter   +5 more
wiley   +1 more source

Genetic variation and phenotypic plasticity of nutrient re-allocation and increased fine root production as putative tolerance mechanisms inducible by methyl jasmonate in pine trees [PDF]

open access: yes, 2014
1. Plant plastic responses to herbivore damage may include rapid, active reallocation of plant resources to reduce the impact of herbivory on future plant fitness. However, whether these inducible tolerance responses can be extended to pine trees and how
Moreira Tomé, Xoaquín   +2 more
core   +2 more sources

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