Cubic strontium manganese oxide is an end-member of the colossal magnetoresistive (CMR) family of manganese-based perovskites, Ln1-xAExMnO3. Because normal synthesis conditions lead to the 4-H hexagonal polymorph, high-pressure conditions are typically used to obtain the cubic perovskite polymorph. In this work, we describe the synthesis and structural/physical characterization of the cubic per...

Primary cultures of rat embryonic motor neurons deprived of brain-derived neurotrophic factor (BDNF) induce neuronal nitric oxide synthase (NOS) within 18 hr. Subsequently, >60% of the neurons undergo apoptosis between 18 and 24 hr after plating. Nitro-L-arginine and nitro-L-arginine methyl ester (L-NAME) prevented motor neuron death induced by trophic factor deprivation. Exogenous generation o...

BACKGROUND Environmental manganese exposure has been associated with adverse neurodevelopmental outcomes among school-aged children; yet, few studies have evaluated prenatal exposure. OBJECTIVES Our study examines associations between prenatal manganese concentrations and placental transfer of manganese with neurodevelopment in 224 2-y-old children residing near the Tar Creek Superfund Site. ...

BACKGROUND Manganese is an essential element, but excessive manganese exposure has neurotoxic effects. OBJECTIVE To examine blood manganese levels in the general population with respect to sex, age, race/ethnicity, pregnancy and menauposal status, as well as levels of trace elements in blood. METHODS We used data from the National Health and Nutrition Examination Survey, a national survey o...

The essential trace elements zinc and manganese have been noted as factors in brain disease since the Twenties. The combined use of zinc and manganese in schizophrenia is based on: 1) Increased urinary excretion of copper when both zinc and manganese are given orally 2) Zinc alone causes a decrease in blood manganese and 3) The double deficiency of zinc and manganese frequently is found in pati...

this experiment was carried out to study the effect of manganese in four levels (30, 60, 90 and 120 mg/kg) and zinc in four levels (50, 100, 150 and 200 mg/kg) on shells with translucent areas, haugh unit, mortality, percentage of ash in eggshell and composition of eggshell in laying hens, in a completely randomized design and in a 4×4 (16 treatment) factorial arrangement, three hundred and twe...

BACKGROUND The first detailed chemical characterisation of Portuguese pine nut (Pinus pinea L.) is reported concerning proximate composition, fatty acid, mineral and vitamin contents. RESULTS Based on the analysis of 27 different populations, pine nuts were characterised by high contents of fat (47.7 g per 100 g dry matter (DM)), protein (33.8 g per 100 g DM) and phosphorus (1130 mg per 100 g...

This work suggests a method for obtaining heat-resistant protective coatings 08Kh17T stainless steel that can be used as interconnect material solid oxide fuel cells. The suggested approach is based on the layer-by-layer precipitation of nickel, cobalt, and manganese, followed by heat treatment in vacuum oxidizing atmosphere. XRD results show consist mixture metal oxides compounds with spinel s...

this study was conducted to evaluate the relative bioavailability value of mn proteinate and mn oxide in broiler chicks. a total of 432 day-old cobb 500 commercial male broiler chicks were randomly distributed into nine treatments with eight replicate pens of six chicks each. in a completely randomized design experiment with a 2×4 factorial arrangement of two manganese sources (proteinate and r...