We investigated the forces that connect genetic program of development to morphogenesis in Drosophila . focused on dorsal closure, a powerful model system for and wound healing. found bulk progress toward closure is driven by contractility supracellular “purse strings” amnioserosa, whereas adhesion-mediated zipping coordinates produced purse strings essential only end stages. applied quantitative modeling show these forces, generated distinct cells, are coordinated space synchronized time....

We measure spin mixing of $F=1$ and $F=2$ spinor condensates $^{87}\mathrm{Rb}$ atoms confined in an optical trap. determine the time to be typically less than 600 ms observe population oscillations. The equilibrium configuration manifold is measured for different magnetic fields found show ferromagnetic behavior low field gradients. An condensate created by microwave excitation from manifold, this spin-2 observed decay exponentially with constant 250 ms. Despite short lifetime within 50

BACKGROUND Mechanisms and electropharmacological characteristics in adult patients with atrial tachycardia (AT) are not well described. We proposed that a combination of characteristics, recording monophasic action potential, effects radiofrequency ablation could further determine the mechanisms achieve new classification adults various types AT because they were important regard to correlation between pathophysiology, clinical syndrome, responses specific pharmacological or...

We demonstrate tunable spin-spin couplings between trapped atomic ions, mediated by laser forces on multiple transverse collective modes of motion. A $\sigma_x \sigma_x$-type Ising interaction is realized quantum bits stored in the ground hyperfine clock states Yb ions. entangling gates and tailor with two three The use closely-spaced provides a new class interactions relevant to computing simulation large collections ions single crystal.

Ultracold $^{87}\mathrm{Rb}\phantom{\rule{0.3em}{0ex}}\text{atoms}$ are delivered into a high-finesse optical microcavity using translating lattice trap and detected via the cavity field. The atoms loaded an from magneto-optic transported $1.5\phantom{\rule{0.3em}{0ex}}\mathrm{cm}$ cavity. Our satisfies strong-coupling requirements for single intracavity atom, thus permitting real-time observation of This transport scheme enables us to vary number...

Abstract 1D poly(3,4‐ethylenedioxythiophene) (PEDOT) nanomaterials, including ellipsoidal nanoparticles, nanorods, and nanotubes, are fabricated via chemical oxidation polymerization in reverse (water‐in‐oil) microemulsions. The cylindrical micelles prepared with sodium bis(2‐ethylhexyl) sulfosuccinate (AOT) aqueous FeCl 3 solution hexane. morphology of the final products is determined by carefully tuning degree potential at micelle surface. Notably, fabrication gram‐scale amounts possible...

We study the coherent off-equilibrium spin mixing inside an atomic condensate. Using mean-field theory and adopting single-spatial-mode approximation, condensate dynamics is found to be well described by that of a nonrigid pendulum displays variety periodic oscillations in external magnetic field. Our results illuminate several recent experimental observations provide critical insights into observation interaction-driven spin-1

We propose a large-scale quantum computer architecture by more easily stabilizing single large linear ion chain in very simple trap geometry. By confining ions an anharmonic with nearly uniform spacing between ions, we show that high-fidelity gates can be realized crystals under the Doppler temperature based on coupling to near-continuum of transverse motional modes shaped laser pulses.

Measuring temperature in nanoscale spatial resolution either at or far from equilibrium is of importance many scientific and technological applications. Although negatively charged nitrogen-vacancy (NV–) centers diamond have recently emerged as a promising nanometric sensor, the technique has been applied only under steady state conditions so far. Here, we present three-point sampling method that allows real-time monitoring changes over ±100 K pump–probe-type experiment enables study heat...

We perform a quantum simulation of the Ising model with transverse field using collection three trapped atomic ion spins. By adiabatically manipulating Hamiltonian, we directly probe ground state for wide range fields and form couplings, leading to phase diagram magnetic order in this microscopic system. The technique is scalable much larger numbers spins, where transitions approaching thermodynamic limit can be studied cases theory becomes intractable.

We interpret the recently observed spatial domain formation in spin-1 atomic condensates as a result of dynamical instability. Within mean field theory, homogeneous condensate is dynamically unstable (stable) for ferromagnetic (antiferromagnetic) interactions. find that this instability naturally leads to spontaneous several recent experiments with rather small numbers atoms. For trapped condensates, our numerical simulations compare quantitatively experimental results, thus largely...

BACKGROUND Information about electrophysiological characteristics and radiofrequency ablation of intra-atrial reentrant tachycardia has not been reported before. We proposed that induction termination by atrial extrastimuli or rapid pacing resetting the response pattern during could ensure mechanism reentry earliest site endocardial activation concealed entrainment pace mapping with shortest stimulus-P wave interval localize a critical area responsible for ablation. METHODS AND RESULTS Seven...

Objectives. RA is the most common form of inflammatory arthritis. IL-19 acts as a pro-inflammatory cytokine involved in pathogenesis RA. We investigated whether anti-IL-19 antibody treatment would modulate severity disease CIA rat model.

Recent advances in quantum technology have demonstrated the potential use of negatively charged nitrogen-vacancy (NV−) centers diamond for temperature and magnetic sensing at sub-cellular levels. Fluorescent nanodiamonds (FNDs) containing high-density ensembles NV− are appealing such applications because they inherently biocompatible non-toxic. Here, we show that FNDs conjugated with gold nanorods (GNRs) useful as a combined nanoheater nanothermometer highly localized hyperthermia treatment...

We propose a set of subradiant states which can be prepared and detected in one-dimensional optical lattice. find that the decay rates are highly dependent on spatial phases imprinted atomic chain, gives systematic investigations subradiance fluorescence experiments. The time evolution these have long where up to hundred milliseconds lifetime is predicted for one atoms. They also show decayed Rabi-like oscillations with beating frequency determined by difference cooperative Lamb shift...

We demonstrate synthetic azimuthal gauge potentials for Bose-Einstein condensates from engineering atom-light couplings. The potential is created by adiabatically loading the condensate into lowest energy Raman-dressed state, achieving a coreless vortex state. act as effective rotations and are tunable Raman coupling detuning. characterize spin textures of dressed states, in agreements with theory. state stable 4.5-s half-atom-number-fraction lifetime. In addition, we exploit to...

Time-resolved pump–probe spectra of 1,1′,3,3,3′,3′-hexamethyl-4,4′,5,5′-dibenzo-2,2′indotricarbocyanine (HDITC), a cyanine dye, in ethylene glycol are obtained using 11 fs and 90 duration pulses analyzed order to study its potential energy surfaces vibrational dynamics. Ten oscillatory frequencies ranging from 30 cm−1 1400 observed the wavelength-resolved measurements. They assigned as fundamental HDITC. The relative displacements equilibrium position between electronic excited ground states...

We report the laser cooling and confinement of Cd atoms in a magneto-optical trap characterize loading process from background vapor. The trapping drives $^{1}S_{0}\ensuremath{\rightarrow}^{1}P_{1}$ transition at $229\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ this two-electron atom also photoionizes directly $^{1}P_{1}$ state. This photoionization overwhelms other loss mechanisms allows direct measurement cross section, which we measure to be...

We show that the five possible ordered states in a two-dimensional quantum spin-1/2 system with long-range exchange interactions (N\'eel, ladder, Peierls, longitudinal-domain, and transversal-domain states) can be realized binary Rydberg-dressed BEC supersolid phase. In such system, blockade phenomenon is shown to also occur for pairs of different excited-state atoms, which results similar intraspecies interspecies between ground-state atoms. It suggests pseudospin possibly formed ground...

Recent studies have found the tryptophan allele of a glycine to polymorphism at position 460 (G460W) α-adducin protein be associated with essential hypertension in European populations. We examined whether is different population, comprised subjects Chinese origin from Taiwan, and Japanese San Francisco Bay area Hawaii. adapted 5′ allelic discrimination assay or TaqMan type individuals for G460W polymorphism, using this method we typed more than 1000 individuals. The frequency W was slightly...

This theoretical work initiates contact between two frontier disciplines of physics, namely, atomic superfluid rotation and cavity optomechanics. It considers an annular Bose-Einstein condensate, which exhibits dissipationless flow is a paradigm rotational quantum inside excited by optical fields carrying orbital angular momentum. provides the first platform that can sense ring condensate with minimal destruction, in situ real time, unlike demonstrated techniques, all involve fully...

Abstract Three restriction fragment length polymorphisms (RFLPs), EcoRI (R), Xbal (X), and Mspl (M) of the apolipoprotein (apo)B gene, were studied to determine their distribution frequencies influence on lipid profiles in 148 Chinese patients with documented coronary heart disease (CHD) 153 healthy subjects. The plasma concentrations cholesterol apoB showed no difference between CHD controls. However, had significantly higher low-density lipoprotein triglyceride lower high-density than...