Fertilization exceeding crop requirements causes an accumulation of phosphorus (P) in soils, which might increase concentrations of dissolved and colloidal P in drainage. We sampled soils classified as Typic Haplorthods from four fertilization experiments to test (i) whether increasing degrees of phosphorus saturation (DPS) increase concentrations of dissolved and colloidal P, and (ii) if criti...

Thyroxine, if not truly the active thyroid hormone ( 1, 2) is clearly the principal iodine-containing compound released by the thyroid gland, and ordinarily comprises the largest fraction of the plasma's protein-bound iodine (3-6). Many investigators have, therefore, attempted to assess thyroidal function by measuring the concentration of protein-bound I'll (PB1181) in the plasma following the ...

The aim of this study was to compile a detailed phytochemical profile and assess the antioxidant properties bee-collected pollen (PBP) obtained from corn poppy (Papaver rhoeas L.) plants. To achieve this, lipid fraction prepared for quantifying fatty acids using GC-FID. Extractable alkaline-hydrolysable PBP fractions (obtained defatted sample) were used determine qualitative quantitative profil...

Chick embryos were sacrificed at intervals after simultaneous injection of BAPN and proline-C(14), the collagen separated into neutral salt-extractable and residue fractions, and total hydroxyproline and hydroxyproline specific radioactivity determined in each fraction. Extractable collagen, measured as hydroxyproline, increased markedly and had a higher specific activity in BAPN-treated embryo...

Fertilization of crops with livestock manure (LM) is a common waste disposal option, but repeated application of LM containing high concentrations of heavy metals such as Cu could lead to crop toxicity and environmental risk. To examine the Cu availability and uptake by wheat in a Mollisol affected by Cu-enriched LM, pot experiments were conducted. LM (376 mg kg⁻¹ Cu originally) was spiked with...

Porcine heart was observed to express annexins V (CaBP33) and VI in large amounts, and annexins III and IV in much smaller amounts. Annexin V (CaBP33) in porcine heart was examined in detail by immunochemistry. Homogenization and further processing of heart in the presence of EGTA resulted in the recovery of annexin V (CaBP33) in the cytosolic fraction and in an EGTA-resistant, Triton X-100-sol...

The non-extractable fraction of many fruit and vegetables contains putatively bioactive polyphenolic compounds that, in most cases, have not been well characterised structurally. Non-extractable proanthocyanidins (NEPA) of a polymeric nature are part of the dietary fibre fraction of food. Using liquid chromatography coupled to a mass spectrometer equipped with an electrospray ionisation chamber...

Alzheimer's disease (AD) is the leading cause of dementia and represents a significant burden on the global economy and society. The role of transition metals, in particular copper (Cu), in AD has become of significant interest due to the dyshomeostasis of these essential elements, which can impart profound effects on cell viability and neuronal function. We tested the hypothesis that there is ...

The rate of synthesis of the endoplasmic reticulum in barley aleurone cells after treatment with gibberellic acid was determined by measurement of [(14)C]-choline incorporation into acid-insoluble material in a semipurified fraction containing the endoplasmic reticulum. 94% of the (14)C incorporated into this fraction is extractable by lipid solvents and only 9% is removed by procedures for nuc...

We study energy-transfer processes from a given quantum system, termed charger, to another one, i.e., the proper battery both in closed and an open setting. quantify fraction EB(τ) of energy stored that can be extracted order perform thermodynamic work. show there substantial gap between average extractable work due correlations created by charger–battery interactions.