Results 101 to 110 of about 45,887 (257)

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela, Raffael Silva Santos Almeida, Ivana Ferreira Simões, Aline Gonçalves Miranda, Magno Oliveira Ramos, Roberto Rodrigues Bandeira Tosta Maciel, Fernanda Warken Rosa, Aníbal de Freitas Santos Júnior   +7 more
wiley   +1 more source

Chronic Low‐Dose Unsymmetrical Dimethylhydrazine Exposure in Rats: Multiorgan Mechanisms and Biomarker Identification

Journal of Applied Toxicology, Volume 46, Issue 6, Page 1987-2002, June 2026.
ABSTRACT Unsymmetrical dimethylhydrazine (UDMH), a highly toxic rocket propellant with known multiorgan effects, requires urgent characterization of its chronic low‐dose toxicity. Using an integrated approach including exploratory transcriptomics (n = 3/group) and metabolomic (n = 4/group) approaches in male Sprague–Dawley rats exposed to high‐dose ...
Fuzhou Liu, Bing Liu, Keli Wang, Xiaoyu Wang, Zhen Sun, Xiaojuan Pan, Zengming Zhao   +6 more
wiley   +1 more source

Efficient Cleavage of pUC19 DNA by Tetraaminonaphthols

ChemistryOpen
In an attempt to create models of phosphodiesterases, we previously investigated bis(guanidinium) naphthols. Such metal‐free anion receptors cleaved aryl phosphates and also plasmid DNA.
Catharina Kost, Ute Scheffer, Elisabeth Kalden, Michael Wilhelm Göbel   +3 more
doaj   +1 more source

A New Phytochemical Screening Programme used for Crops grown with Organic and Conventional Methods [PDF]

, 2002
A broad screening programme, covering the most general phytochemical groups of compounds, was developed on the basis of Thin Layer Chromatography (TLC).
Brandt, Kirsten, Christensen, Trine F., Diedrichsen, Brigitte, Kristensen, Charlotte V., Ravn, Dr. Helle Weber   +4 more
core  

Evolution of Thiosemicarbazones: From First‐ to Second‐Generation Metal Chelators and Their Reactive Oxygen Species‐Mediated Effects in Melanoma

ChemistryOpen, Volume 15, Issue 6, June 2026.
Thiosemicarbazones (TSC) have demonstrated promise as new chemotherapeutic agents against melanoma in both in vitro and In vivo studies. TSC are powerful metal coordinating agents, coordinating transition metal ions such as zinc, copper and iron in multiple oxidation states. It is this metal coordination that imparts the anticancer activity.
Rohina Alim, Scott D. Andrew, Christopher J. Parkinson   +2 more
wiley   +1 more source

New Cyclic Voltammetry of 3-(4-N-Pyridine-2-yl Benzene Sulfonamide Azo)-1-Nitroso Naphthol and the Use of it for Enhancement of Cobalt Oxide Nano Particles

Nano Biomedicine and Engineering, 2017
The electrochemical behavior of the 3-(4-N-pyridine-2-yl benzene sulfonamide azo)-1-nitroso naphthol reagent and its complex with Co (Ⅱ) has been studied at glassy carbon disk electrode in different supporting electrolyte at concentration 1 mol and scan ...
Hussein Jasem Mohammed
doaj   +1 more source

Red era: Dyeing yak hair fibres red with in situ generated silver nanoparticles using silver nitrate and a flavonoid‐containing plant extract

Coloration Technology, Volume 142, Issue 3, Page 439-455, June 2026.
Abstract Plants and their extracts have been used for dyeing fabrics, skin and hair for thousands of years and have been experiencing a revival in the last years due to increasing health risks arising from oxidative hair dye precursors. We developed a novel two‐step method to dye keratin fibres based on in situ formed silver nanoparticles including a ...
Julia K. Hachmann, Jule M. Sauler, Charlotte Ruhmlieb, Volkmar Vill, Fabian Straske   +4 more
wiley   +1 more source

Enzyme Activity in Terrestrial Soil in Relation to Exploration of the Martian Surface Third Semiannual Progress Report, 1 Jul. - 31 Dec. 1965 [PDF]

Qualitative and quantitative test for enzyme activities in terrestrial soil adapted to Mars probe telemetry ...
Mc Laren, A. D., Skujins, J. J.
core   +1 more source

The development of a micro technique for qualitative organic analysis [PDF]

, 1934
Thesis (M.A.)--Boston ...
Rapport, Arthur
core   +1 more source

Simulated Y‐Site Compatibility of Calcium Gluconate and Benzylpenicillin With Maintenance Fluid Used in Neonatal Intensive Care Unit

Clinical and Translational Science, Volume 19, Issue 6, June 2026.
ABSTRACT Maintenance fluids for neonates, which are commonly composed of glucose 10%, sodium chloride (NaCl) 0.225% w/v with potassium chloride (KCl) 20 mmol/L (GSP), are administered as a continuous infusion, and prescribed medications are required to be co‐administered frequently through a Y‐site.
Ayman Allahham, Robert Pulbrook, Billy Lo, Stephen Halliwell, Nhan Le, Janice Wong, Viena Habbabe, Vivek Babu Nooney, Vincent Chan, Victoria Letts, Thilini Thrimawithana   +10 more
wiley   +1 more source