Results 1 to 10 of about 165,674 (237)

Assessment of volemia status using ultrasound examination of the inferior vena cava and spectroscopic bioimpendance in hemodialysis patients [PDF]

open access: yesVojnosanitetski Pregled, 2022
Background/Aim. Hypervolemia is an important risk factor for the development of cardiovascular morbidity and mortality in patients treated with regular hemodialysis. There is still no reliable method for assessing the status of volemia in these patients.
Lazarević Tatjana   +8 more
doaj   +1 more source

Determination of catechins in green tea leaves by HPLC compared to spectrophotometry

open access: yesЖурнал органічної та фармацевтичної хімії, 2021
Aim. To study the qualitative composition, the quantitative content of catechins in green tea leaves and compare the data obtained with those evaluated by spectrophotometry. Materials and methods. Green tea leaves used for the analysis were collected in
Oleksandr Yu. Maslov   +3 more
doaj   +1 more source

Optimization of thorium content determination method in typical associated ore waste residue

open access: yesFushe yanjiu yu fushe gongyi xuebao, 2023
Taking six typical associated ore waste samples as the research object, the thorium content in the samples was determined by spectrophotometry and the factors affecting the test results were analyzed.
BI Mingliang, LIAO Shen, LI Xiaoyan
doaj   +1 more source

Color Stability of Some Aesthetic Composites after Immersion in Different Staining Solutions and UV Accelerated Aging [PDF]

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2023
Background and Objective: One of the most important factors in the success of anterior composite restorations is color stability in different situations in mouth.
N Shadman   +5 more
doaj  

Eradication, Strain Preservation, Strain Change — Outcomes of Helicobacter pylori Therapy

open access: yesАнтибиотики и Химиотерапия, 2021
Relevance. If we reduce the treatment exclusively to the eradication of Helicobacter pylori (Hp), the question of monitoring the results of anti-Hp therapy is controversial, given the widely known data on the detection of Hp, including virulent strains ...
E. V. Golubkina   +4 more
doaj   +1 more source

DEVELOPMENT OF THE TECHNIQUE OF QUANTITATIVE DEFINITION OF TRIAZAVIRIN IN WATER SOLUTIONS WITH USE OF THE SPECTROPHOTOMETRY METHOD

open access: yesБюллетень сибирской медицины, 2014
Authors of article developed techniques of quantitative definition Triazavirin in water solutions with use of a method of a spectrophotometry. Three options of a method of a s spectrophotometry are used: direct spectrophotometry, spectrophotometry ...
M. Yu. Kinev   +3 more
doaj   +1 more source

Determination of Nitrite and Nitrate by Forming Two 8-Hydroxyquinoline Based Azo Dyes [PDF]

open access: yesشیمی کاربردی روز, 2012
Two sensitive and selective spectrophotometric methods are presented for the determination of trace amounts of nitrite and nitrate. It relies on the reaction of nitrite with sulfadimidine (SD) and cisapride (CP) in acidic medium to form diazonium ions ...
Habibollah Eskandari, Simin Isazadeh
doaj   +1 more source

THE SPECTROPHOTOMETRIC OBSERVATIONS OF THE SUNSPOTS

open access: yesСовременная наука и инновации, 2022
Observing sunspots and studying their magnetic fields is one of the daily tasks of modern heliophysics. At the end of the 19th century, Pieter Zeeman conducted a series of experiments to experimentally test whether atoms have magnetic properties.
U. P. Ibragimowa   +3 more
doaj   +1 more source

Spectrophotometric methods for the determination of letrozole in bulk and pharmaceutical dosage forms

open access: yesJournal of Advanced Pharmaceutical Technology & Research, 2010
Ultraviolet (UV), first derivative, second derivative, and AUC-spectrophotometric methods for the determination of letrozole in pharmaceutical formulations have been developed.
Sasmita Kumari Acharjya   +4 more
doaj   +1 more source

An analysis of the shapes of interstellar extinction curves. VII Milky Way spectrophotometric optical-through-ultraviolet extinction and its R-dependence [PDF]

open access: yes, 2019
We produce a set of 72 NIR-through-UV extinction curves by combining new Hubble Space Telescope/STIS optical spectrophotometry with existing International Ultraviolet Explorer spectrophotometry (yielding gapless coverage from 1150 to 10000 ?) and NIR ...
Bohlin, Ralph   +4 more
core   +4 more sources

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