Results 141 to 150 of about 63,374 (315)

Search for long-term variability of HESS J1745-290

Astronomy & Astrophysics
At the center of our Galaxy lies the bright γ-ray point-like source HESS J1745-290, which is compatible in position with Sgr A⋆, although an association between the two remains uncertain.
Acharyya A., Aharonian F., Backes M., Batzofin R., Berge D., Bernlöhr K., Böttcher M., Boisson C., Bolmont J., Brun F., Bruno B., Burger-Scheidlin C., Bylund T., Celic J., Cerruti M., Chen A., Chernyakova M., Chibueze J. O., Chibueze O., Cornejo B., Cotter G., Mbarubucyeye J. Damascene, de Assis Scarpin J., de Bony de Lavergne M., de Naurois M., de Oña Wilhelmi E., Giler A. G. Delgado, Devin J., Djannati-Ataï A., Dmytriiev A., Egg K., Ernenwein J.-P., Nieves C. Escañuela, Fauverge P., Feijen K., Filipovic M. D., Fontaine G., Funk S., Gabici S., Glicenstein J. F., Glombitza J., Goswami P., Heckmann L., Hess B., Hinton J. A., Hofmann W., Holch T. L., Holler M., Horns D., Jamrozy M., Jankowsky F., Jaroschewski I., Jung-Richardt I., Kerszberg D., Khélifi B., Komin N., Kosack K., Kostunin D., Lang R. G., Lazarević S., Lemière A., Lemoine-Goumard M., Lenain J.-P., Liniewicz P., Mackey J., Malyshev D., Marandon V., Mayer M. G. F., Mehta A., Mitchell A. M. W., Moderski R., Mohrmann L., Montanari A., Niemiec J., Olivera-Nieto L., Moghadam M. O., Panny S., Parsons R. D., Pensec U., Pichard P., Preis T., Pühlhofer G., Punch M., Quirrenbach A., Reimer A., Reimer O., Reis I., Ren H. X., Reville B., Rieger F., Rowell G., Rudak B., Sabri K., Sahakian V., Santangelo A., Sasaki M., Schüssler F., Said W. Si, Sol H., Stawarz Ł., Tanaka T., Taylor G. L., Terrier R., Tsirou M., Unbehaun T., van Eldik C., Vecchi M., Venter C., Vink J., Voitsekhovskyi V., Wach T., Wagner S. J., Wierzcholska A., Zacharias M., Zech A., Zhong W., Zouari S.   +116 more
doaj   +1 more source

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

Advanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno, Anjana Devi, David Zanders, Miryam Arredondo, Davide Mariotti, Ruairi McGlynn, Sindy Devis, Simón Guerrero, Eglantina Benavente, Matias Alegría, Yusser Olguin, Lorena Lobos‐Gonzalez, Kevin Guzmán, Elizabeth Rivas‐Yañez, Paula Solar, Valentin Cepus, Michael Krause, Luis Velásquez   +17 more
wiley   +1 more source

High natural gamma radiation in two Brazilian areas

, 2013
Primeval radionuclides have survived in detectable amounts since the time of nucleosynthesis and contribute to the natural terrestrial radioactivity.
Bonotto, Daniel Marcos [UNESP]
core  

V.H.E. Gamma Rays From Microquasars [PDF]

, 2006
This thesis is concerned with the detection of very high energy (VHE) 7-rays from microquasars, a recently discovered subclass of x-ray binaries that display jets of relativistic particles.
Latham, Ian James
core  

Prospects for Gamma-Ray Emission from Magnetar Regions in CTAO Observations

The Astrophysical Journal
Recent multiwavelength observations have highlighted magnetars as significant sources of cosmic rays, particularly through their gamma-ray emissions. This study examines three magnetar regions—CXOU J171405.7–31031, Swift J1834−0846, and SGR 1806−20—known
M. F. Sousa, R. Costa Jr., Jaziel G. Coelho, R. C. Dos Anjos   +3 more
doaj   +1 more source

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

Advanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu, Hanyang Zhang, Wenbo Yang, Hao Chen, Jincheng Wang, Fei Chang   +5 more
wiley   +1 more source

Affinity‐Tuned Albumin Hitchhiking Extends the Bioorthogonal Capture Window in Pretargeting Radiotheranostics

Advanced Healthcare Materials, EarlyView.
Pharmacokinetic engineering of clickable radioligands was achieved via albumin hitchhiking approach within a pretargeted radiotheranostics delivery platform. This approach reduced rapid renal elimination, expanded bioorthogonal capture window, boosted tumor uptake by ∼3.5‐fold, and improved the tumor‐to‐liver ratio by ∼6‐fold.
Xie He, Nicholas L. Fletcher, Gayathri R. Ediriweera, Yifei Zhu, James Humphries, Christopher B. Howard, Jiazheng Wang, Craig A. Bell, Kristian Kempe, Kristofer J. Thurecht   +9 more
wiley   +1 more source

Use in plant breeding of acute, chronic or fractionated doses of X-rays or fast neutrons as illustrated with leaves of Saintpaulia

, 1971
The parameters used were survival of irradiated leaves of S. ionantha , production of adventitious plantlets at the base of the petiole and mutation frequency.The differences between unfiltered X-rays from a 250/25 deep therapy apparatus and fast ...
Broertjes, C.
core  

Electrons in the cosmic radiation [PDF]

, 1990
The nature of cosmic ray electrons and their radiation in the Universe has been studied. A convection associated diffusion model is proposed to describe the main characteristics of the large-scale distribution of cosmic ray electrons in the Galaxy: (1) a
Chi, Xinyu, Chi, X
core  

Global dose distributions of neutrons and gamma-rays on the Moon. [PDF]

Sci Rep, 2023
Naito M, Kusano H, Kodaira S.
europepmc   +1 more source