Results 1 to 10 of about 739,329 (309)

Airborne soil and dust are potential sources of antimony to residents across Delhi: Exposure likely to occur via dermal route

open access: yesHygiene and Environmental Health Advances, 2023
Background: There is an urgent need to assess sources of toxic metals in highly urbanized environments, to identify high risk areas for testing to enable planning to minimize exposure to residents.
Manoj P. Singh   +4 more
doaj   +1 more source

Preformulation Studies of Ezetimibe-Simvastatin Solid Dispersions in the Development of Fixed-Dose Combinations

open access: yesPharmaceutics, 2022
Two active pharmaceutical ingredients (APIs) with limited solubility, simvastatin and ezetimibe, prepared as a drug-drug solid dispersion (SD) was evaluated for physicochemical, microstructural, and aqueous dissolution properties.
Agata Górniak   +4 more
doaj   +1 more source

Direct Calibration Method for LA-HR-ICP-MS Apatite U-Pb Dating

open access: yesYankuang ceshi, 2022
BACKGROUND Apatite is a common U-bearing accessory mineral with a U-Pb closure temperature of ~500℃, making U-Pb dating of apatite a potentially valuable thermochronometer.
ZHAO Linghao   +5 more
doaj   +1 more source

Screening of Fenofibrate-Simvastatin Solid Dispersions in the Development of Fixed-Dose Formulations for the Treatment of Lipid Disorders

open access: yesPharmaceutics, 2023
The combination of statins and fibrates in the treatment of lipid abnormalities effectively regulates individual lipid fraction levels. In this study, the screening and assessment of the physicochemical properties of simvastatin-fenofibrate solid ...
Agata Górniak   +4 more
doaj   +1 more source

Vertical and spatial evaluation of the groundwater chemistry in the Central Nile Delta Quaternary aquifer to assess the effects of human activities and seawater intrusion

open access: yesFrontiers in Environmental Science, 2022
Contaminants can be found in the groundwater through natural processes, such as seawater intrusion, or due to human activities that can adversely affect the quantity, quality, and distribution of the groundwater. In order to assess the influence of human
Zenhom E. Salem   +3 more
doaj   +1 more source

Evaluation of the Influence of a Hydrogel Containing AMPD on the Stability of Tetracycline Hydrochloride

open access: yesPharmaceutics, 2021
Tetracyclines, as beneficial antimicrobial factors in both local and systemic therapy, are characterized by high instability. The aim of the study was the development of the influence of hydrogel formulation on the tetracycline hydrochloride (TC) level ...
Agnieszka Kostrzębska   +2 more
doaj   +1 more source

High resolution elemental abundance analysis of the Hyades Supercluster [PDF]

open access: yes, 2011
The existence of a kinematically defined moving group of stars centred at U = -40, V = -17 km/s referred to as the Hyades Supercluster, has been suggested as the debris of an originally large star forming event, with its core being the present day Hyades
Allende Prieto   +62 more
core   +2 more sources

Mineral composition through soil-wine system of portuguese vineyards and its potential for wine traceability [PDF]

open access: yes, 2018
The control of geographic origin is one of a highest priority issue regarding traceability and wine authenticity. The current study aimed to examine whether elemental composition can be used for the discrimination of wines according to geographical ...
Brady   +13 more
core   +1 more source

Elemental composition and oxidation of chamber organic aerosol [PDF]

open access: yes, 2011
Recently, graphical representations of aerosol mass spectrometer (AMS) spectra and elemental composition have been developed to explain the oxidative and aging processes of secondary organic aerosol (SOA).
Canagaratna, M. R.   +7 more
core   +2 more sources

Diet and life history reduce interspecific and intraspecific competition among three sympatric Arctic cephalopods

open access: yesScientific Reports, 2020
Trophic niche and diet comparisons among closely sympatric marine species are important to understand complex food webs, particularly in regions most affected by climate change.
Alexey V. Golikov   +10 more
doaj   +1 more source

Home - About - Disclaimer - Privacy