Counting subgraphs of coloring graphs

Autor: Asgarli, Shamil, Krehbiel, Sara, Levinson, Howard W., Russell, Heather M.

The chromatic polynomial $\pi_{G}(k)$ of a graph $G$ can be viewed as counting the number of vertices in a family of coloring graphs $\mathcal C_k(G)$ associated with (proper) $k$-colorings of $G$ as a function of the number of colors $k$. These colo

Externí odkaz: http://arxiv.org/abs/2401.12883

Utilization frequency and patient-reported effectiveness of symptomatic therapies in post-COVID syndrome

Autor: Miriam Reuner, Johannes Krehbiel, Jürgen Rech, Brigitte Greiner, Isabel Schäfer, Regina Herold, Eva Morawa, Yesim Erim

Publikováno v: BMC Public Health, Vol 24, Iss 1, Pp 1-13 (2024)

Abstract Background To date there is no causal treatment for post-COVID syndrome, leaving symptomatic treatments as the primary recourse. However, the practical implementation and effectiveness of these interventions remain underexplored. This study

Externí odkaz: https://doaj.org/article/8c60e34af05641b99f8fd1db2ba65ef1

Impaired maturation of resting-state connectivity in anorexia nervosa from adolescence to adulthood: differential mechanisms of consummatory vs. anticipatory responses through a symptom provocation paradigm

Autor: Andrea Mendez-Torrijos, Mageshwar Selvakumar, Silke Kreitz, Julie Roesch, Arnd Dörfler, Georgios Paslakis, Johannes Krehbiel, Sabine Steins-Löber, Oliver Kratz, Stefanie Horndasch, Andreas Hess

Publikováno v: Frontiers in Behavioral Neuroscience, Vol 18 (2024)

This functional magnetic resonance imaging (fMRI) study examined resting-state (RS) connectivity in adolescent and adult patients with anorexia nervosa (AN) using symptom provocation paradigms. Differential food reward mechanisms were investigated th

Externí odkaz: https://doaj.org/article/5bb7733d0eee4ff4b5cf352580269129

First High-speed Video Camera Observations of a Lightning Flash Associated with a Downward Terrestrial Gamma-ray Flash

Autor: Abbasi, R. U., Saba, M. M. F., Belz, J. W., Krehbiel, P. R., Rison, W., Kieu, N., da Silva, D. R., Rodeheffer, Dan, Stanley, M. A., Remington, J., Mazich, J., LeVon, R., Smout, K., Petrizze, A., Abu-Zayyad, T., Allen, M., Arai, Y., Arimura, R., Barcikowski, E., Bergman, D. R., Blake, S. A., Buckland, I., Cheon, B. G., Chikawa, M., Fujii, T., Fujisue, K., Fujita, K., Fujiwara, R., Fukushima, M., Furlich, G., Globus, N., Gonzalez, R., Hanlon, W., Hayashida, N., He, H., Hibino, K., Higuchi, R., Honda, K., Ikeda, D., Inoue, N., Ishii, T., Ito, H., Ivanov, D., Iwakura, H., Iwasaki, A., Jeong, H. M., Jeong, S., Jui, C. C. H., Kadota, K., Kakimoto, F., Kalashev, O., Kasahara, K., Kasami, S., Kawakami, S., Kawata, K., Kharuk, I., Kido, E., Kim, H. B., Kim, J. H., Kim, S. W., Kimura, Y., Komae, I., Kubota, Y., Kuzmin, V., Kuznetsov, M., Kwon, Y. J., Lee, K. H., Lubsandorzhiev, B., Lundquist, J. P., Matsumiya, H., Matsuyama, T., Matthews, J. N., Mayta, R., Myers, I., Nagataki, S., Nakai, K., Nakamura, R., Nakamura, T., Nakamura, Y., Nakazawa, A., Nishio, E., Nonaka, T., Oda, H., Ogio, S., Ohnishi, M., Ohoka, H., Oku, Y., Okuda, T., Omura, Y., Ono, M., Oshima, A., Ozawa, S., Park, I. H., Potts, M., Pshirkov, M. S., Rodriguez, D. C., Rott, C., Rubtsov, G. I., Ryu, D., Sagawa, H., Sakaki, N., Sako, T., Sakurai, N., Sato, K., Seki, T., Sekino, K., Shah, P. D., Shibasaki, Y., Shibata, N., Shibata, T., Shikita, J., Shimodaira, H., Shin, B. K., Shin, H. S., Shinto, D., Smith, J. D., Sokolsky, P., Stokes, B. T., Stroman, T. A., Takahashi, K., Takamura, M., Takeda, M., Takeishi, R., Taketa, A., Takita, M., Tameda, Y., Tanaka, K., Tanaka, M., Tanoue, Y., Thomas, S. B., Thomson, G. B., Tinyakov, P., Tkachev, I., Tokuno, H., Tomida, T., Troitsky, S., Tsuda, R., Tsunesada, Y., Udo, S., Uehama, T., Urban, F., Warren, D., Wong, T., Yamamoto, M., Yamazaki, K., Yashiro, K., Yoshida, F., Zhezher, Y., Zundel, Z.

Publikováno v: Geophysical Research Letters, 50, e2023GL102958 (2023)

In this paper, we present the first high-speed video observation of a cloud-to-ground lightning flash and its associated downward-directed Terrestrial Gamma-ray Flash (TGF). The optical emission of the event was observed by a high-speed video camera

Externí odkaz: http://arxiv.org/abs/2205.05115

Channel Development and Electric Parameter Characteristics of Regular Pulse Bursts in Lightning

Autor: X. Fan, Y. Zhang, P. Krehbiel, D. Zheng, W. Yao, L. Xu, H. Liu, W. Lyu

Publikováno v: Geophysical Research Letters, Vol 51, Iss 7, Pp n/a-n/a (2024)

Abstract Observations of a regular pulse burst (RPB) at the end of a K‐event are analyzed utilizing a simple geometric model and particle swarm optimization (PSO) to estimate the currents and propagation speeds of successive pulses of the RPB. The

Externí odkaz: https://doaj.org/article/7a1ba238eeff4a13994bb3032566eb8f