Noel A. Clark
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View article: Power source, data retrieval method, and attachment type affect success of dorsally mounted tracking tag deployments in 37 species of shorebirds
Power source, data retrieval method, and attachment type affect success of dorsally mounted tracking tag deployments in 37 species of shorebirds Open
Animal‐borne trackers are commonly used to study bird movements, including in long‐distance migrants such as shorebirds. Selecting a tracker and attachment method can be daunting, and methodological advancements often have been made by tri…
View article: Breeding and foraging habitat are important in determining foraging ranges of sympatric generalist species
Breeding and foraging habitat are important in determining foraging ranges of sympatric generalist species Open
How far animals travel to gather food for offspring or themselves is a central component of ecology. Among birds, the ‘foraging range’ (straight‐line distance between a central place and a destination) is used to assess potential interacti…
View article: Cover Feature: Efficient Charge Transport and Electronic Conduction in Organic Liquid Crystalline Semiconductor‐Reduced Graphene Oxide Hybrid Assembly with Controlled Microscale Morphologies (ChemPhysChem 17/2025)
Cover Feature: Efficient Charge Transport and Electronic Conduction in Organic Liquid Crystalline Semiconductor‐Reduced Graphene Oxide Hybrid Assembly with Controlled Microscale Morphologies (ChemPhysChem 17/2025) Open
View article: Fully-chromophoric ferroelectric nematics for electronic electro-optics
Fully-chromophoric ferroelectric nematics for electronic electro-optics Open
Electronic electro-optic (EEO) phase modulation is a key emerging technology for the chip-scale inter-conversion of signals between the electronic and photonic domains. The recent discovery of the ferroelectric nematic ($N_F$) liquid cryst…
View article: Optical Poling of Ferroelectric Liquids
Optical Poling of Ferroelectric Liquids Open
Ferroelectric nematic liquid crystals combine fluidity, spontaneous polarity, optical birefringence, and strong nonlinear response, unlocking a rich landscape of phenomena and control strategies yet to be fully explored. Here, all‐optical …
View article: Thermocapillary Flow in Fluid Smectic Bubbles in Microgravity
Thermocapillary Flow in Fluid Smectic Bubbles in Microgravity Open
Interfaces between two fluids exhibit an excess free-energy cost per unit area that is manifested as surface tension. This equilibrium property generally depends on temperature, which enables the phenomenon of thermocapillary flow, wherein…
View article: A twist grain boundary phase in aqueous solutions of the nucleic acid tetramer GTAC
A twist grain boundary phase in aqueous solutions of the nucleic acid tetramer GTAC Open
At high concentration, long Watson/Crick (WC) double-helixed DNA forms columnar crystal or liquid crystal phases of linear, parallel duplex chains packed on periodic lattices. This can also be a structural motif of short NA oligomers such …
View article: Thermotropic reentrant isotropic symmetry and induced smectic antiferroelectricity in the ferroelectric nematic material RM734
Thermotropic reentrant isotropic symmetry and induced smectic antiferroelectricity in the ferroelectric nematic material RM734 Open
We report a transition from the ferroelectric nematic liquid crystal (N F ) phase to a lower-temperature, apolar fluid phase having reentrant isotropic symmetry (I R ), in the liquid crystal compound RM734 doped with small concentrations o…
View article: The proportion of common pheasants shot using lead shotgun ammunition in Britain has barely changed over five years of voluntary efforts to switch from lead to non-lead ammunition
The proportion of common pheasants shot using lead shotgun ammunition in Britain has barely changed over five years of voluntary efforts to switch from lead to non-lead ammunition Open
Since 2020, the SHOT-SWITCH research project has monitored the proportion of wild-shot common pheasants Phasianus colchicus in Great Britain that were killed using lead and non-lead shot. This was set up in response to UK shooting and rura…
View article: Thermotropic reentrant isotropy and induced smectic antiferroelectricity in the ferroelectric nematic realm: comparing RM734 and DIO
Thermotropic reentrant isotropy and induced smectic antiferroelectricity in the ferroelectric nematic realm: comparing RM734 and DIO Open
We report the appearance of a liquid crystal phase having isotropic symmetry obtained by cooling a ferroelectric nematic with saturated polar order, a surprising new phenomen of the ferroelectric nematic realm.
View article: An active hydroelastic liquid crystal phase of a fluttering ferroelectric nematic
An active hydroelastic liquid crystal phase of a fluttering ferroelectric nematic Open
Polarization flutter, produced by an applied AC electric field drives an equilibrium ferroelectric nematic ($\mathrm{N_F}$) liquid crystal (LC) through a transition into a dissipative active ferroelectric nematic state exhibiting strong el…
View article: Freely suspended nematic and smectic films and free-standing smectic filaments in the ferroelectric nematic realm
Freely suspended nematic and smectic films and free-standing smectic filaments in the ferroelectric nematic realm Open
Freely suspended ferroelectric smectic A film viewed in reflection. Director bend and splay are both suppressed in this highly polar phase, giving a mosaic of locally uniform, block-like smectic domains separated by sharp grain boundaries.
View article: Liquid Crystal Ordering in Densely Packed Colloidal Suspensions of Highly Anisotropic Monolayer Nanosheets
Liquid Crystal Ordering in Densely Packed Colloidal Suspensions of Highly Anisotropic Monolayer Nanosheets Open
Monolayer nanosheets of zirconium phosphate in aqueous suspension exhibit short-range repulsion and long-range attraction, producing, at overall volume fractions larger than about half a percent, phase separation into higher-concentration …
View article: 1118 Dissection of the neoadjuvant immune checkpoint blockade tumor bed in 3D using non-destructive, open-top light sheet microscopy (OTLS) and quantitative serial H&E reconstruction
1118 Dissection of the neoadjuvant immune checkpoint blockade tumor bed in 3D using non-destructive, open-top light sheet microscopy (OTLS) and quantitative serial H&E reconstruction Open
View article: Nonlinear geometric phase coded ferroelectric nematic fluids for nonlinear soft-matter photonics
Nonlinear geometric phase coded ferroelectric nematic fluids for nonlinear soft-matter photonics Open
Simultaneous manipulation of multiple degrees of freedom of light lies at the heart of photonics. Nonlinear wavefront shaping offers an exceptional way to achieve this goal by converting incident light into beams of new frequencies with sp…
View article: Freely Suspended Nematic and Smectic Films and Free-Standing Smectic Filaments in the Ferroelectric Nematic Realm
Freely Suspended Nematic and Smectic Films and Free-Standing Smectic Filaments in the Ferroelectric Nematic Realm Open
We show that stable, freely suspended liquid crystal films can be made from the ferroelectric nematic ($\mathrm{N_F}$) phase and from the recently discovered polar, lamellar $\mathrm{SmZ_A}$ and $\mathrm{SmA_F}$ phases. The $\mathrm{N_F}$ …
View article: Retraction Note: Synthesis of γ-graphyne using dynamic covalent chemistry
Retraction Note: Synthesis of γ-graphyne using dynamic covalent chemistry Open
View article: Double-Helical Tiled Chain Structure of the Twist-Bend Liquid Crystal Phase in CB7CB
Double-Helical Tiled Chain Structure of the Twist-Bend Liquid Crystal Phase in CB7CB Open
The twist-bend nematic liquid crystal phase is a three-dimensional fluid in which achiral bent molecules spontaneously form an orientationally ordered, macroscopically chiral, heliconical winding of a ten nanometer-scale pitch in the absen…
View article: A twist-grain boundary (TGB) phase in aqueous solutions of the DNA tetramer GTAC
A twist-grain boundary (TGB) phase in aqueous solutions of the DNA tetramer GTAC Open
We report the observation of a Twist Grain Boundary (TGB) phase of DNA, a striking motif of three dimensional (3D) equilibrium self-assembly of the DNA tetramer 5'-GTAC-3', a base sequence that is self-complimentary, pairing to form 4-base…
View article: Calorimetric evidence for the existence of an intermediate phase between the ferroelectric nematic phase and the nematic phase in the liquid crystal RM734
Calorimetric evidence for the existence of an intermediate phase between the ferroelectric nematic phase and the nematic phase in the liquid crystal RM734 Open
The idea that rod-like molecules possessing an electric dipole moment could exhibit a ferroelectric nematic phase was suggested more than a century ago. However, only recently such a phase has been reported for two quite different liquid c…
View article: New examples of ferroelectric nematic materials showing evidence for the antiferroelectric smectic-Z phase
New examples of ferroelectric nematic materials showing evidence for the antiferroelectric smectic-Z phase Open
View article: Dielectric spectroscopy of ferroelectric nematic liquid crystals: Measuring the capacitance of insulating interfacial layers
Dielectric spectroscopy of ferroelectric nematic liquid crystals: Measuring the capacitance of insulating interfacial layers Open
Numerous measurements of the dielectric constant ɛ of the recently discovered ferroelectric nematic (NF) liquid crystal (LC) phase report extraordinarily large values of ɛ′ (up to ∼30 000) in the NF phase. We show that what is in fact bein…
View article: Fluid jets and polar domains, on the relationship between electromechanical instability and topology in ferroelectric nematic liquid crystal droplets
Fluid jets and polar domains, on the relationship between electromechanical instability and topology in ferroelectric nematic liquid crystal droplets Open
Ferroelectric nematic droplets confined between two ferroelectric substrates separated by a thin gap provide easy access to the topology and to its relationship with the electromechanical instability generated by substrates charging.
View article: A self-assembled periodic nanoporous framework in aqueous solutions of the DNA tetramer GCCG
A self-assembled periodic nanoporous framework in aqueous solutions of the DNA tetramer GCCG Open
The collective behavior of the shortest DNA oligomers in high concentration aqueous solutions is an unexplored frontier of DNA science and technology. Here we broaden the realm of DNA nanoscience by demonstrating that single-component aque…
View article: Thermotropic reentrant isotropy and antiferroelectricity in the ferroelectric nematic realm: Comparing RM734 and DIO
Thermotropic reentrant isotropy and antiferroelectricity in the ferroelectric nematic realm: Comparing RM734 and DIO Open
The current intense study of ferroelectric nematic liquid crystals was initiated by the observation of the same ferroelectric nematic phase in two independently discovered organic rod-shaped mesogenic compounds, RM734 and DIO. We recently …
View article: Thermotropic reentrant isotropy and antiferroelectricity in the ferroelectric nematic material RM734
Thermotropic reentrant isotropy and antiferroelectricity in the ferroelectric nematic material RM734 Open
We report a transition from the ferroelectric nematic liquid crystal ($N_F$) phase to a lower-temperature, antiferroelectric fluid phase having reentrant isotropic symmetry ($I_A$), in the liquid crystal compound RM734 doped with small con…
View article: Fluid superscreening and polarization following in confined ferroelectric nematics
Fluid superscreening and polarization following in confined ferroelectric nematics Open
View article: Evaluating the Impact of Headstarting on the Critically Endangered Spoon-Billed Sandpiper Calidris pygmaea
Evaluating the Impact of Headstarting on the Critically Endangered Spoon-Billed Sandpiper Calidris pygmaea Open
Headstarting is a conservation approach that suggests offering an advantage to a population by improving egg production, survival of embryos and/or juveniles. In this article, we are providing the quantitative data obtained during 10 years…
View article: The smectic Z <sub>A</sub> phase: Antiferroelectric smectic order as a prelude to the ferroelectric nematic
The smectic Z <sub>A</sub> phase: Antiferroelectric smectic order as a prelude to the ferroelectric nematic Open
We have structurally characterized the liquid crystal (LC) phase that can appear as an intermediate state when a dielectric nematic, having polar disorder of its molecular dipoles, transitions to the almost perfectly polar-ordered ferroele…
View article: Estimating recruitment rate and population dynamics at a migratory stopover site using an integrated population model
Estimating recruitment rate and population dynamics at a migratory stopover site using an integrated population model Open
Consideration of the full annual cycle population dynamics can provide useful insight for conservation efforts, but collecting data needed to estimate demographic parameters is often logistically difficult. For species that breed in remote…