Results 71 to 80 of about 1,345,257 (199)

Convergent and Divergent Connectivity Patterns of the Arcuate Fasciculus in Macaques and Humans

Advanced Science, Volume 13, Issue 13, 3 March 2026.
This study employs viral‐based single‐neuron tracing and dMRI‐based whole‐brain tractography to investigate arcuate fasciculus (AF) trajectories in macaque monkeys, and compares with the human AF connectome using spectral embedding. Results demonstrate conserved AF topography spanning temporoparietal‐auditory‐frontal pathways across primates, with ...
Jiahao Huang, Ruifeng Li, Wenwen Yu, Anan Li, Xiangning Li, Mingchao Yan, Lei Xie, Qingrun Zeng, Xueyan Jia, Shuxin Wang, Ronghui Ju, Feng Chen, Qingming Luo, Hui Gong, Andrew Zalesky, Xiaoquan Yang, Yuanjing Feng, Zheng Wang   +17 more
wiley   +1 more source

Technical Note: Determination of formaldehyde mixing ratios in air with PTR-MS: laboratory experiments and field measurements [PDF]

Atmospheric Chemistry and Physics, 2008
Formaldehyde (HCHO), the most abundant carbonyl compound in the atmosphere, is generated as an intermediate product in the oxidation of nonmethane hydrocarbons.
S. Inomata, H. Tanimoto, S. Kameyama, U. Tsunogai, H. Irie, Y. Kanaya, Z. Wang   +6 more
doaj  

Microwave‐Assisted Recycling of Lithium‐Ion Batteries: Linking Process Optimization to Volatile Organic Compounds and Fluorinated Gases Emission Mitigation

Battery Energy, Volume 5, Issue 2, March 2026.
Microwave‐assisted recycling of black mass from spent lithium‐ion batteries was optimized through a Design of Experiments approach, linking heating parameters to lithium recovery efficiency and volatile emissions. Combining GC–MS and multinuclear NMR analyses, the study identifies key conditions minimizing hazardous fluorinated and organic gas ...
Alberto Mannu, Giacomo Luigi Petretto, Erica Pietrobelli, Alessandro Bonometti, Maria Enrica Di Pietro, Andrea Mele, Laura Eleonora Depero, Elza Bontempi   +7 more
wiley   +1 more source

Interpretation of mass spectra by a Vocus proton-transfer-reaction mass spectrometer (PTR-MS) at an urban site: insights from gas chromatographic pre-separation [PDF]

Atmospheric Measurement Techniques
Volatile organic compounds (VOCs) are important atmospheric components that contribute to air pollution, but their accurate quantification by proton-transfer-reaction mass spectrometry (PTR-MS) remains challenging.
Y. Zhang, Y. Wang, Y. Wang, C. Li, Y. Li, S. Yin, M. S. Claflin, B. M. Lerner, D. Worsnop, L. Wang, L. Wang, L. Wang, L. Wang, L. Wang   +13 more
doaj   +1 more source

Volatile Organic Compound Release During Litter Decomposition in the Arctic

Global Change Biology Communications, Volume 1, Issue 1, March 2026.
Volatile organic compound (VOC) emissions from Arctic litter decomposition decline over time and differ strongly between Cassiope tetragona and Salix arctica. The inter‐species differences and changes over time are greater than the effects of climate change treatments on litter VOC emissions.
Riikka Rinnan, Mira Skardhamar, Magnus Kramshøj, Tao Li, Sarah H. Svendsen, Toke Bang‐Andreasen, Lars H. Hansen, Thomas Holst   +7 more
wiley   +1 more source

Rapid Profiling of Volatile Organic Compounds Associated with Plant-Based Milks Versus Bovine Milk Using an Integrated PTR-ToF-MS and GC-MS Approach

Molecules
The growing demand for plant-based beverages has underscored the importance of investigating their volatile profiles, which play a crucial role in sensory perception and consumer acceptance.
Antonia Corvino, Iuliia Khomenko, Emanuela Betta, Federico Ivan Brigante, Luana Bontempo, Franco Biasioli, Vittorio Capozzi   +6 more
doaj   +1 more source

Evidence of White Matter Neuroinflammation in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Diffusion‐Based Neuroinflammation Imaging Study

Human Brain Mapping, Volume 47, Issue 4, March 2026.
Diffusion‐based neuroinflammation imaging (NII) reveals widespread white matter abnormalities in ME/CFS patients, undetected by conventional DTI. NII metrics associate with mental health, disability and disease severity, providing novel evidence of neuroinflammation and highlighting NII's potential as a biomarker in ME/CFS.
Qiang Yu, Kiana Kothe, Richard A. Kwiatek, Peter Del Fante, Anya Bonner, Vince D. Calhoun, Zack Y. Shan   +6 more
wiley   +1 more source

MS/MS studies for the selective detection of isomeric biogenic VOCs using a Townsend Discharge Triple Quadrupole Tandem MS and a PTR-Linear Ion Trap MS [PDF]

Atmospheric Measurement Techniques, 2009
We performed MS/MS investigations of biogenic volatile organic compounds (BVOC) using a triple quadrupole tandem mass spectrometer (QqQ-MS) equipped with a Townsend Discharge ion source and a Proton Transfer Reaction Linear Ion Trap (PTR-LIT) mass ...
M. Müller, L. H. Mielke, M. Breitenlechner, S. A. McLuckey, P. B. Shepson, A. Wisthaler, A. Hansel   +6 more
doaj  

Online breath gas analysis in unrestrained mice by hs-PTR-MS

Mammalian Genome, 2013
The phenotyping of genetic mouse models for human disorders may greatly benefit from breath gas analysis as a noninvasive tool to identify metabolic alterations in mice. Phenotyping screens such as the German Mouse Clinic demand investigations in unrestrained mice. Therefore, we adapted a breath screen in which exhaled volatile organic compounds (VOCs)
Wilfried, Szymczak, Jan, Rozman, Vera, Höllriegl, Martin, Kistler, Stefan, Keller, Dominika, Peters, Moritz, Kneipp, Holger, Schulz, Christoph, Hoeschen, Martin, Klingenspor, Martin Hrabě, de Angelis   +10 more
openaire   +3 more sources

Ion Chemistry in Dielectric Barrier Discharge Ionization: Recent Advances in Direct Gas Phase Analyses

Mass Spectrometry Reviews, Volume 45, Issue 2, Page 193-217, March/April 2026.
ABSTRACT Dielectric barrier discharge ionization (DBDI) sources, employing low‐temperature plasma, have emerged as sensitive and efficient ionization tools with various atmospheric pressure ionization processes. In this review, we summarize a historical overview of the development of DBDI, highlighting key principles of gas‐phase ion chemistry and the ...
Kseniya Dryahina, Miroslav Polášek, Juraj Jašík, Kristýna Sovová, Patrik Španěl   +4 more
wiley   +1 more source