Results 21 to 30 of about 1,895,310 (337)

Correlation of Vitamin 25(OH)D, Liver Enzymes, Potassium, and Oxidative Stress Markers with Lipid Profile and Atheromatic Index: A Pilot Study

open access: yesJournal of Xenobiotics, 2023
According to recent literature, there is a limited amount of data about the correlation of vitamin 25(OH)D, potassium (K), oxidative stress parameters, and other biomarkers with dyslipidemia, which is an established risk factor for cardiovascular ...
Stavroula Ioannidou   +5 more
doaj   +1 more source

Accumulation of Nutrients and the Relation between Fruit, Grain, and Husk of Coffee Robusta Cultivated in Brazilian Amazon

open access: yesPlants, 2023
Coffee genotypes cultivated in the Amazonian region have been gaining increasing prominence in Brazilian plantations. This study aimed to quantify nutrient accumulation in the fruits, grains, and husks of Robusta coffee genotypes cultivated in the ...
Raquel Schmidt   +7 more
doaj   +1 more source

The amazonian capim-açú is less nitrogen dependente than antelope grass to produce leaf dry matter [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2021
The Maranhão floodplain is dominated by native grasses like capim-açú (Paspalum plicatulum, Mich.). Due to scarce information on nutrient demands of native species, farmers are replacing native pastures by exotic and potentially invasive species such as ...
Ivo G. R. de Araújo   +5 more
doaj   +1 more source

Chemical doping of individual semiconducting carbon-nanotube ropes [PDF]

open access: yes, 2000
We report the effects of potassium doping on the conductance of individual semiconducting single-walled carbon nanotube ropes. We are able to control the level of doping by reversibly intercalating and de-intercalating potassium. Potassium doping changes
Bockrath, Marc   +5 more
core   +1 more source

Preparation of β-Cyclodextrin Functionalized Platform for Monitoring Changes in Potassium Content in Perspiration

open access: yesMolecules, 2023
The monitoring of potassium ion (K+) levels in human sweat can provide valuable insights into electrolyte balance and muscle fatigue non-invasively.
Ruixiang Liu, Xiaofeng Shi
doaj   +1 more source

How Does Compost Amendment Affect Stevia Yield and Soil Fertility?

open access: yesEnvironmental Sciences Proceedings, 2022
Stevia (Stevia rebaudiana) is a plant species belonging to the family Asteraceae. It contains natural intense sweeteners while presenting low carbohydrate content.
El Hocine Hirich   +4 more
doaj   +1 more source

Estimation and study effect of some trace elements and some electrolytes in hyperlipidemia patients

open access: yesMedical Journal of Babylon, 2023
Background: Measuring electrolytes in the blood is considered one of the most common diagnostic techniques. Objectives: To assess sodium, potassium, zinc, and copper levels and examine the correlation between parameters and study their probable relation ...
Huda Ahmed Duhaib   +2 more
doaj   +1 more source

Potassium pentaborate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The title compound, K[B(5)O(7)(OH)(2)], was obtained from a hydro-thermal reaction. The structure is composed of one K(+) cation and a polyborate (1) (∞)[B(5)O(7)(OH)(2)](-) anion, which consists of two six-membered rings linked by a common BO(4) tetra-hedron.
openaire   +3 more sources

Fertilizer Application Levels in Potato Crops and the Diagnosis and Recommendation Integrated System (DRIS)

open access: yesAgronomy, 2020
The rates of nitrogen, phosphorus, and potassium fertilizers used in the cultivation of potatoes are often considered excessive, as they can cause imbalance among the essential elements present in the soil.
Roberta Camargos Oliveira   +6 more
doaj   +1 more source

Release Pattern of Nitrogen and Potassium from Controlled Release Fertilizer (CRF) in the Soil

open access: yesJournal of Tropical Soils, 2023
Nitrogen (N) and potassium (K) are macronutrients that plants need for better growth and yield. However, they are readily lost from the soil through volatilization, denitrification, and leaching, aside from being absorbed by plant roots.
Suwardi Suwardi   +5 more
doaj   +1 more source

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