Results 21 to 30 of about 4,968,402 (139)

Modelling of clumpy photon dominated regions

, 2008
Observations of the interstellar medium (ISM) reveal its fractal structure over a large range of scales. The quantitative description shows that the ISM consists mainly of surfaces, so that the stellar UV-radiation can deeply penetrate into the ISM and ...
C. Kramer, V. Ossenkopf, M. Cubick, J. Stutzki, M. Röllig   +4 more
core   +1 more source

Acetylene Functionalization of Multiple‐Resonant Materials Enabling Strong Two‐Photon Absorption and Delayed Luminescence With Highly Efficient Exciplex‐Sensitized Electroluminescence

Advanced Optical Materials, Volume 14, Issue 34, 11 September 2026.
Multiple‐resonance thermally activated delayed fluorescent (MR‐TADF) material absorbs two near‐infrared 760 nm photons with cross‐section up to 156 GM, emit 26 nm narrowband green light at 491 nm with unity luminescence quantum yield and electroluminescence efficiency up to 25.2% in organic light‐emitting diode.
Ikechukwu D. Nwosu, Debasish Barman, Samuel L. Powley, Tárcius N. Ramos, Nguyen Le Phuoc, Tomi Leinonen, Charles T. Smith, Mireille Blanchard‐Desce, Jonathan Daniel, Mikko Linnolahti, Yoann Olivier, Chihaya Adachi, Alexander S. Romanov   +12 more
wiley   +1 more source

Stage‐Associated Microglial Subpopulations and Dynamics in Vascular Pathogenesis of Oxygen‐Induced Retinopathy

Cell Proliferation, Volume 59, Issue 7, July 2026.
In the oxygen‐induced retinopathy (OIR) mouse model, two distinct microglial subpopulations play opposing roles: highly glycolytic microglia (HGM) promote neovascular formation via Pkm2, while Mrc1/CD206‐positive phagocytosis‐associated microglia (PAM) facilitate its regression.
Yuan Ma, Ziye Chen, Baoyi Liu, Wen Ding, Runping Duan, Kangjie Kong, Zhuojun Xu, Jizhu Li, Jiali Ru, Dianlei Guo, Xiaoyue Wei, Yaping Liu, Zhuangling Lin, Yang Meng, Yuan Liu, Lan Jiang, Zitong Chen, Rebiya Tuxun, Chinling Tsai, Chunqiao Liu, Tao Li   +20 more
wiley   +1 more source

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

Advanced Healthcare Materials, Volume 15, Issue 23, 19 June 2026.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best, Gizem Karabiyik, Gerd Geerling, Sarah Barbara Zwingelberg, Gregor Lang, Martin Humenik   +5 more
wiley   +1 more source

Genome‐wide association study identifies quantitative trait loci associated with resistance to Verticillium dahliae race 3 in tomato

The Plant Genome, Volume 18, Issue 4, December 2025.
Abstract Verticillium wilt (VW) disease, caused by Verticillium dahliae Kleb., is a major threat to tomato (Solanum lycopersicum L.) production. Identifying loci associated with VW resistance can accelerate breeding efforts and support sustainable disease management. Although the Ve1 and Ve2 genes confer resistance to V.
Tika B. Adhikari, Bode A. Olukolu, Anju Pandey, Ashley N. Philbrick, Dilip R. Panthee, Reza Shekasteband, Randolph G. Gardner, Ralph A. Dean, Frank J. Louws   +8 more
wiley   +1 more source

Searching for the elusive CH2+ with the James Webb Space Telescope

Astronomy & Astrophysics
Context. Carbocations are key species in interstellar chemistry, providing entry points for building larger hydrocarbons. CH+, and more recently, CH3+, have been detected.
Zannese M., Coudert L. H., Dartois E., Dell’Ova P., Roncero O., del Mazo-Sevillano P., Jacovella U., Gans B., Goicoechea J. R., Van De Putte D., Boersma C., Habart E., Peeters E., Cami J., Chown R., Schroetter I., Kannavou O.   +16 more
doaj   +1 more source

The excitation of water in the S140 photon dominated region

, 2005
We consider the excitation of water in the Photon Dominated Region (PDR) S140. With the use of a three-dimensional escape probability method we compute the level populations of ortho- and para-H(2)O up to similar to 350 K ( i.
D. R. Poelman, Poelman, DR, M. Spaans, Spaans, M   +3 more
core   +1 more source

Stimuli‐responsive systems: A focus on controlled drug delivery for posterior segment ocular disease

Responsive Materials, Volume 3, Issue 4, November 2025.
This review highlights recent advances in stimuli‐responsive drug delivery for posterior segment diseases, focusing on mechanisms and potential. It also explores mechanically interlocked molecules and bioorthogonal reactions as novel approaches. Challenges and future perspectives are discussed, aiming to bridge the gap between research and clinical ...
Chengzhi Zhang, Jiayi Hou, Yameng Zhao, Yiwen Wang, Kexin Wang, Siyu Li, Yange Wang, Jiehao Zhang, Shenao Ding, Chenxu Zhang, Zongming Song, Ye Tao   +11 more
wiley   +1 more source

Modelling clumpy photon-dominated regions in 3D

, 2017
Context. Models of photon-dominated regions (PDRs) still fail to fully reproduce some of the observed properties. In particular they do not reproduce the combination of the intensities of different PDR cooling lines together with the chemical ...
S. Andree-Labsch, V. Ossenkopf-Okada, M. Röllig   +2 more
core   +1 more source

Photon dominated chemistry in the nucleus of M82: Detection of HOC + in a starburst galaxy [PDF]

, 2005
The nucleus of M82 has been mapped in 3mm and 1mm lines of CN, HCN, C 2H, c-C3H2, CH3C2H, HC3N and HOC+ using the IRAM 30m telescope. These species have been selected for constituting a good diagnostic of photon-dominated chemistry. We have measured [CN]/
Gerin, M., García-Burillo, S., Usero, A., Rizzo Caminos, José Ricardo, Fuente, A., Teyssier, D.   +5 more
core   +1 more source