Results 41 to 50 of about 10,199,905 (275)

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Global air quality and climate

Chemical Society Reviews, 2012
Emissions of air pollutants and their precursors determine regional air quality and can alter climate. Climate change can perturb the long-range transport, chemical processing, and local meteorology that influence air pollution. We review the implications of projected changes in methane (CH4), ozone precursors (O3), and aerosols for climate (expressed ...
Fiore, Arlene, Naik, Vaishali, Spracklen, Dominick, Steiner, Allison, Unger, Nadine, Prather, Michael, Bergmann, Dan, Cameron-Smith, Philip, Cionni, Irene, Collins, William, Dalsøren, Stig, Eyring, Veronika, Folberth, Gerd, Ginoux, Paul, Horowitz, Larry, Josse, Béatrice, Lamarque, Jean-François, Mackenzie, Ian, Nagashima, Tatsuya, O'Connor, Fiona, Righi, Mattia, Rumbold, Steven, Shindell, Drew, Skeie, Ragnhild, Sudo, Kengo, Szopa, Sophie, Takemura, Toshihiko, Zeng, Guang   +27 more
openaire   +8 more sources

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source

Chemical and optical properties of carbonaceous aerosols in Chiang Mai, Thailand, during the 2024 El Niño event

Asian Journal of Atmospheric Environment
This study characterizes the chemical and optical properties of carbonaceous aerosols in urban Chiang Mai, Thailand, during an intensive monitoring period in March 2024.
In Ho Song, Jong Sung Park, Soyoung Jung, Jinju Jeong, Seung-Myung Park, Soyoung Kang, Hae-Jin Jung, Seung-Ha Lee, Dae-Il Kang, Jiwon Seong, Yong-Jae Lim   +10 more
doaj   +1 more source

Temporal variations in health risk indices and combustion-derived components of PM1.0: Focus on terephthalate and levoglucosan

Heliyon
This study evaluated the health risks and chemical composition of PM1.0 and PM2.5 in Incheon, South Korea, emphasizing the critical role of particle size in public health impacts.
Myoungki Song, Seoyeong Choe, Sea-Ho Oh, Minyoung Sung, Ji Yun Jung, Jinsoo Choi, Joonyoung Ahn, Jungmin Park, Myungsoo Yoo, Jinsoo Park, Min-Suk Bae   +10 more
doaj   +1 more source

Turbulent transport, emissions and the role of compensating errors in chemical transport models [PDF]

Geoscientific Model Development, 2014
The balance between turbulent transport and emissions is a key issue in understanding the formation of O3 and particulate matter with diameters less than 2.5 μm (PM2.5).
P. A. Makar, R. Nissen, A. Teakles, J. Zhang, Q. Zheng, M. D. Moran, H. Yau, C. diCenzo   +7 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Ultrafine Particles Monitoring in Paris: From Total Number Concentrations to Size Distributions Measurements

Aerosol and Air Quality Research
Due to their small size and ability to penetrate deeply into the respiratory system, ultrafine particles (UFP) pose a significant health risk. Their concentrations and sources are not consistently monitored and regulated in urban areas, including Paris ...
Grégory Abbou, Véronique Ghersi, François Gaie-Levrel, Anne Kauffmann, Mikael Reynaud, Christophe Debert, Philippe Quénel, Alexia Baudic   +7 more
doaj   +1 more source

Stimulator of interferon genes agonist augmented antitumor immunity of osimertinib in Egfr‐mutated lung cancer

Molecular Oncology, EarlyView.
Combining osimertinib with the STING agonist ADU‐S100 activates innate and adaptive immunity to overcome the non‐inflamed microenvironment of Egfr‐mutant lung cancer. This combination increases NK and CD8+ T‐cell infiltration, associated with activation of the STING‐IRF3 pathway and local immunogenic cell death.
Jun Nishimura, Tadahiro Kuribayashi, Johannes Brägelmann, Sachi Okawa, Masataka Taoka, Shunta Mori, Tomoka Nishimura, Takaaki Tanaka, Go Makimoto, Kiichiro Ninomiya, Kammei Rai, Eiki Ichihara, Ryohei Katayama, Katsuyuki Hotta, Masahiro Tabata, Yosuke Togashi, Yoshinobu Maeda, Martin L. Sos, Katsuyuki Kiura, Kadoaki Ohashi   +19 more
wiley   +1 more source