Results 31 to 40 of about 2,327,588 (337)

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

Approaching high-performance potassium-ion batteries via advanced design strategies and engineering

open access: yesScience Advances, 2019
A general review proposes research strategies for overcoming essential issues in the research of potassium-ion batteries. Potassium-ion batteries (PIBs) have attracted tremendous attention due to their low cost, fast ionic conductivity in electrolyte ...
Wenchao Zhang, Yajie Liu, Zaiping Guo
semanticscholar   +1 more source

Retrospective study of the correlation of serum potassium concentrations and the findings of heart auscultation in calves with neonatal diarrhea [PDF]

open access: yes, 1980
A retrospective study was conducted of clinical records of calves with neonatal diarrhea up to the age of 14 days concerning certain aspects of blood potassium concentration and heart rate and rhythm.
Acres, Stephen D., Klee, Wolfgang
core   +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

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

Lack of direct evidence for a functional role of voltage-operated calcium channels in juxtaglomerular cells [PDF]

open access: yes, 1990
In this study we have examined the role of voltage-gated calcium channels in the regulation of calcium in juxtaglomerular cells. Using a combination of patch-clamp and single-cell calcium measurement we obtained evidence neither for voltage-operated ...
Chegini, S.   +3 more
core   +1 more source

Highly nitrogen doped carbon nanofibers with superior rate capability and cyclability for potassium ion batteries

open access: yesNature Communications, 2018
Potassium-ion batteries are a promising alternative to lithium-ion batteries. However, it is challenging to achieve fast charging/discharging and long cycle life with the current electrode materials because of the sluggish potassiation kinetics.
Yang Xu   +6 more
semanticscholar   +1 more source

The conduction pathway of potassium channels is water free under physiological conditions. [PDF]

open access: yes, 2019
Ion conduction through potassium channels is a fundamental process of life. On the basis of crystallographic data, it was originally proposed that potassium ions and water molecules are transported through the selectivity filter in an alternating ...
Chevelkov, V.   +9 more
core   +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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