Results 81 to 90 of about 208,578 (318)

Timing in trace conditioning of the nictitating membrane response of the rabbit (Oryctolagus cuniculus) : scalar, nonscalar, and adaptive features [PDF]

, 2010
Using interstimulus intervals (ISIs) of 125, 250, and 500 msec in trace conditioning of the rabbit nictitating membrane response, the offset times and durations of conditioned responses (CRs) were collected along with onset and peak latencies.
Richard S. Sutton, Sutton, Richard S., Elliot A. Ludvig, Kehoe, E. James, E. James Kehoe, Ludvig, Elliot Andrew   +5 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

O fragmentado e tortuoso processo de construção dos conceitos de vetor e escalar

Revista Brasileira de Ensino de Física
O presente trabalho é uma tentativa de chamar a atenção para a forma inadequada da construção dos conceitos de vetor e escalar apresentados na maioria dos livros de física no nível universitário.
Osman Rosso Nelson, Ranilson Carneiro Filho   +1 more
doaj   +1 more source

Stability of braneworlds with non-minimally coupled multi-scalar fields

European Physical Journal C: Particles and Fields, 2018
Linear stability of braneworld models constructed with multi-scalar fields is very different from that of single-scalar field models. It is well known that both the tensor and the scalar perturbations of the latter are stable at linear level. However, in
Feng-Wei Chen, Bao-Min Gu, Yu-Xiao Liu
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Instability of de-Sitter black hole with massive scalar field coupled to Gauss–Bonnet invariant and the scalarized black holes

European Physical Journal C: Particles and Fields, 2022
The black hole scalarization in a special Einstein-scalar–Gauss–Bonnet (EsGB) gravity has been widely investigated in recent years. Especially, the spontaneous scalarization of scalar-free black hole in de-Sitter (dS) spacetime possesses interesting ...
Zhen-Hao Yang, Guoyang Fu, Xiao-Mei Kuang, Jian-Pin Wu   +3 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Unifying prospective and retrospective interval-time estimation: a fading-gaussian activation-based model of interval-timing [PDF]

, 2014
Hass and Hermann (2012) have shown that only variance-based processes will lead to the scalar growth of error that is characteristic of human time judgments.
Mareschal, Denis, Addyman, Caspar, Thomas, Elizabeth, French, R.M., Thomas, E., French, Robert M.   +5 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

A passive scalar field convected by turbulence

, 1985
Classical statistical mechanics is applied to the study of a passive scalar field convected by isotropic turbulence. A complete set of independent real parameters and dynamic equations are worked out to describe the dynamic state of the passive scalar ...
Qian J, J. Qian
core   +1 more source