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The F-GAMMA program is a coordinated effort to investigate the physics of Active Galactic Nuclei (AGNs) via multi-frequency monitoring of Fermi blazars. In the current study we show and discuss the evolution of broad-band radio spectra,…

The biological behavior and treatment response of meningiomas depend on their grade, making an accurate diagnosis essential for treatment planning and prognosis assessment. We observed that the weighted fusion of spatial-frequency domain…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Jiamiao Lu , Wei Wu , Ke Gao , Ping Mao , Weichuan Zhang , Tuo Wang , Lingkun Ma , Jiapan Guo , Zanyi Wu , Yuqing Hu , Changming Sun

Inhibiting a signalling pathway concerns controlling the cellular processes of a cancer cell's viability, cell division, and death. Assay protocols created to see if the molecular structures of the drugs being tested have the desired…

Quantitative Methods · Quantitative Biology 2022-07-19 Roumen Anguelov , G Manjunath , Avulundiah E Phiri , Trevor T Nyakudya , Priyesh Bipath , June C Serem , Yvette N Hlophe

The small cross section of Raman scattering poses a great challenge for its direct study at the single-molecule level. By exploiting the high Franck-Condon factor of a common-mode resonance, choosing a large vibrational frequency difference…

High-gain resonant nonlinear Raman scattering on trapped cold atoms within a high-fineness ring optical cavity is simply explained under a nonlinear opto-mechanical mechanism, and a proposal using it to detect frequency of micro-trap on…

Atomic Physics · Physics 2014-03-24 Lin Zhang

An early detection of different tumor subtypes is crucial for an effective guidance to personalized therapy. While much efforts focus on decoding the sequence of DNA basis to detect the genetic mutations related to cancer, it is becoming…

Calculations of frequency spectra for organic molecular crystals taking various defects in their structure into account are carried out. It is shown how the presence of the vacancies, orientation disorder, and surface presence affects…

Soft Condensed Matter · Physics 2007-09-19 M. A. Korshunov

We compare the main feature of the measured Raman scattering spectra from single layer graphene with a bilayer in which the two layers are arbitrarily misoriented. The profiles of the 2D bands are very similar having only one component,…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Philippe Poncharal , Anthony Ayari , Thierry Michel , Jean-Louis Sauvajol

Segmentation is crucial for brain gliomas as it delineates the glioma s extent and location, aiding in precise treatment planning and monitoring, thus improving patient outcomes. Accurate segmentation ensures proper identification of the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Kiranmayee Janardhan , Vinay Martin DSa Prabhu , T. Christy Bobby

We investigated Raman spectra of single-layer and multi-layer graphene under ultraviolet laser excitation at the wavelength of 325 nm. It was found that while the G peak of graphene remains pronounced in UV Raman spectra, the 2D band…

Materials Science · Physics 2015-05-13 Irene Calizo , Igor Bejenari , Muhammad Rahman , Guanxiong Liu , Alexander A. Balandin

Pediatric brain tumors, particularly gliomas, represent a significant cause of cancer related mortality in children with complex infiltrative growth patterns that complicate treatment. Early, accurate segmentation of these tumors in…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Harish Thangaraj , Diya Katariya , Eshaan Joshi , Sangeetha N

Surgery for brain cancer is a major problem in neurosurgery. The diffuse infiltration into the surrounding normal brain by these tumors makes their accurate identification by the naked eye difficult. Since surgery is the common treatment…

Through the probing of light-matter interactions, Raman spectroscopy provides invaluable insights into the composition, structure, and dynamics of materials, and obtaining such data from portable and cheap instruments is of immense…

Chemical Physics · Physics 2024-07-03 Vikas Yadav , Abhay Kumar Tiwari , Soumik Siddhanta

Gliomas are the most frequent primary brain tumors in adults. Glioma change detection aims at finding the relevant parts of the image that change over time. Although Deep Learning (DL) shows promising performances in similar change…

Computer Vision and Pattern Recognition · Computer Science 2023-01-27 Tommaso Di Noto , Meritxell Bach Cuadra , Chirine Atat , Eduardo Gamito Teiga , Monika Hegi , Andreas Hottinger , Patric Hagmann , Jonas Richiardi

We present a new experimental-computational technology of inferring network models that predict the response of cells to perturbations and that may be useful in the design of combinatorial therapy against cancer. The experiments are…

In this study, Brillouin spectroscopy was employed to investigate the viscoelastic properties of melanoma cells in vitro. Using a custom-built confocal Brillouin microspectrometer, we obtained Brillouin shifts and full width at half maximum…

A meningioma is a type of brain tumor that requires tumor volume size follow ups in order to reach appropriate clinical decisions. A fully automated tool for meningioma detection is necessary for reliable and consistent tumor surveillance.…

Computer Vision and Pattern Recognition · Computer Science 2018-05-30 Sungmin Lee , Jangho Lee , Jungbeom Lee , Chul-Kee Park , Sungroh Yoon

The average Raman signal power obtained in a modulated optical trap is dependent on the Brownian motion - therefore hydrodynamic properties of the trapped particle. Hence, in addition to the molecular properties obtained from the Raman…

Optics · Physics 2023-11-27 Rohin Sharma , Anusa Thapa , Rijan Maharjan , Ashim Dhakal

This paper proposes a novel approach for uncertainty quantification in dense Conditional Random Fields (CRFs). The presented approach, called Perturb-and-MPM, enables efficient, approximate sampling from dense multi-label CRFs via random…

Computer Vision and Pattern Recognition · Computer Science 2017-03-03 Raphael Meier , Urspeter Knecht , Alain Jungo , Roland Wiest , Mauricio Reyes

Surface enhanced Raman spectroscopy, is a technique of fundamental importance to analytical science and technology where the amplified Raman spectrum of analytes is used for chemical fingerprinting. Here, we showcase an engineered…

Applied Physics · Physics 2021-06-08 K N Prajapati , Anoop A Nair , S Ravi P Silva , J Mitra