Results 91 to 100 of about 40,064 (164)
Rhythms of the nervous system: mathematical themes and variations [PDF]
The nervous system displays a variety of rhythms in both waking and sleep. These rhythms have been closely associated with different behavioral and cognitive states, but it is still unknown how the nervous system makes use of these rhythms to perform ...
Kopell, Nancy
core
The cardiac pacemakers: A paradigm of robustness in evolutionary biology
Abstract figure legend Functional networks in living systems are formed by many thousands of gene products. In association with those networks, several genes (four in this diagram) may be sufficient, each on its own, to ensure that the function occurs. Any one of these may be removed or blocked while leaving the others to continue functioning.
Denis Noble
wiley +1 more source
Structure mirroring function: What's the ‘matter’ with the funny current?
Abstract figure legend The ‘funny’ (If) current of cardiac pacemaker cells has been first identified in the late 1970s as a major mechanism in the generation and control of cardiac pacemaking. Decades of studies have since described the properties of the funny current and of its molecular components, HCN channels, in the heart and brain, providing the ...
Andrea Saponaro, Dario DiFrancesco
wiley +1 more source
Abstract figure legend Intricate cellular electrical coupling networks in the heart. Various cell types couple the central cardiomyocyte through gap junctional contacts, with the exception of neurons. Whether ephaptic coupling (EpC) occurs in homocellular or heterocellular contexts beyond cardiomyocyte–cardiomyocyte interactions remains unclear ...
Xiaobo Wu+2 more
wiley +1 more source
Urbanization without growth : a not-so-uncommon phenomenon [PDF]
To find out why African countries'experience with urbanization and sustained growth appeared to differ from that of other countries, the authors investigated the determinants of urbanization across countries over 40 years.
Fay, Marianne, Opal, Charlotte
core
The mysterious middlemen making your vision pop: understanding the function of amacrine cells
Abstract figure legend This review aims to illustrate the diversity and function of amacrine cells in the retina. The diversity of amacrine cell subtypes is depicted based on morphology, stratification and neurotransmitter expression, along with their synaptic connectivity with bipolar and ganglion cells, emphasizing inhibitory and modulatory roles ...
Victor Calbiague‐Garcia+3 more
wiley +1 more source
Financial constraints and economics behavior: the specificities of small manufacturing firms from 1985 to 1995 [PDF]
The aim of this paper is to give an overwiev of the behavior of manufacturing firms, in particular the small ones and to go deeper into the conclusion of a previous paper ( Equity and rate of return, ew- fin- 9608001).
Bernard Paranque
core
Abstract figure legend Small‐conductance calcium‐activated potassium (SK) channels are important for atrial repolarization and can be targeted for atrial‐specific antiarrhythmic treatments. We developed a computational model with a calcium sensor to study the effects of increased pacing rate (5 Hz), which enhances SK‐channel gating and forward ...
Stefan Meier+3 more
wiley +1 more source
Chin up: A novel functional explanation for the evolution of the chin
Abstract The human chin, also frequently referred to as the mental prominence, is a part of the human anatomy whose evolutionary origin and function have divided scientific opinion to this day. There were suggestions it could have been used in defence, assisted in the mastication process, aided in the formation of words (i.e.
Victor Benno Meyer‐Rochow
wiley +1 more source
Sudden onset chest pain after a CT-scan of the aorta. [PDF]
Vervaat FE, van Brakel T, Bouwmeester S.
europepmc +2 more sources