Results 81 to 90 of about 2,891,099 (365)

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Application value of contrast‐enhanced ultrasound in preoperative localization of microwave ablation for primary hyperparathyroidism

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Background Ultrasonography (US) and 99mTechnetium‐sestamibi scintigraphy (99mTc‐MIBI) are currently first‐line imaging modalities to localize parathyroid adenomas with sensitivities of 80% and 84%, respectively. Therefore, finding other modalities to further improve the diagnostic accuracy for preoperative localization is critically needed ...
Fangyi Liu, Li Zang, Yunlin Li, Zhiwei Guan, Yang Liu, Xiaoling Yu, Zhiyu Han, Ping Liang   +7 more
wiley   +1 more source

Youth smoking and anti-smoking policies in North Dakota: a system dynamics simulation study

Substance Abuse Treatment, Prevention, and Policy, 2019
Background The current study utilizes system dynamics to model the determinants of youth smoking and simulate effects of anti-smoking policies in the context of North Dakota, a state with one of the lowest cigarette tax rates in the USA.
Arielle S. Selya, Oleksandr Ivanov, Abigail Bachman, David Wheat   +3 more
doaj   +1 more source

Entropy production of cyclic population dynamics

, 2010
Entropy serves as a central observable in equilibrium thermodynamics. However, many biological and ecological systems operate far from thermal equilibrium. Here we show that entropy production can characterize the behavior of such nonequilibrium systems.
Benjamin Andrae, D.-Q. Jiang, Erwin Frey, Jonas Cremer, P. Glansdorff, Tobias Reichenbach   +5 more
core   +1 more source

Competitive Lotka-Volterra Population Dynamics with Jumps [PDF]

, 2011
This paper considers competitive Lotka-Volterra population dynamics with jumps. The contributions of this paper are as follows. (a) We show stochastic differential equation (SDE) with jumps associated with the model has a unique global positive solution;
Applebaum, Chenggui Yuan, Gard, Gard, Geroge Yin, Gopalsamy, Jiang, Jianhai Bao, Kuang, Kunita, Li, Lipster, Liu, Mao, Mao, Mao, Peng, Prato, Roubik, Roughgarden, Takeuchi, Takeuchi, Xiao, Xuerong Mao, Zhu, Zhu, Øksendal   +26 more
core   +2 more sources

Unlocking the potential of tumor‐derived DNA in urine for cancer detection: methodological challenges and opportunities

Molecular Oncology, EarlyView.
Urine is a rich source of biomarkers for cancer detection. Tumor‐derived material is released into the bloodstream and transported to the urine. Urine can easily be collected from individuals, allowing non‐invasive cancer detection. This review discusses the rationale behind urine‐based cancer detection and its potential for cancer diagnostics ...
Birgit M. M. Wever, Renske D. M. Steenbergen   +1 more
wiley   +1 more source

Diversification in causes of death in low-mortality countries: emerging patterns and implications

BMJ Global Health, 2020
Introduction An important role of public health organisations is to monitor indicators of variation, so as to disclose underlying inequality in health improvement.
José Manuel Aburto, Marie-Pier Bergeron-Boucher, Alyson van Raalte   +2 more
doaj   +1 more source

Demographic perspectives in research on global environmental change [PDF]

arXiv, 2021
Human population is at the centre of research on global environmental change. On the one hand, population dynamics influence the environment and the global climate system through consumption-based carbon emissions. On the other hand, health and wellbeing of the population is already being affected by climate change. The knowledge on population dynamics
arxiv  

Population Dynamics in the Penna Model

, 2004
We build upon the recent steady-state Penna model solution, Phys.Rev.Lett. 89, 288103 (2002), to study the population dynamics within the Penna model. We show, that any perturbation to the population can be broken into a collection of modes each of which
A.F.R. de Toledo Piza, J. B. Coe, J.B. Coe, J.B. Coe, P. F. Verhulst, P.H. Leslie, S.M. Jazwinski, T.J.P. Penna, T.J.P. Penna, Y. Mao   +9 more
core   +1 more source

Spatial memory shapes density dependence in population dynamics [PDF]

, 2017
Most population dynamics studies assume that individuals use space uniformly, and thus mix well spatially. In numerous species, however, individuals do not move randomly, but use spatial memory to visit renewable resource patches repeatedly.
Benhamou, Simon, Bonenfant, Christophe, Chamaillé-Jammes, Simon, Riotte-Lambert, Louise   +3 more
core   +3 more sources