Flow induced by an oscillating sphere in probing complex viscosity of polymer solutions

A theoretical investigation is presented for a linear viscoelastic flow induced by an oscillatory colloidal particle in nonadsorbing polymer solutions. At small-amplitude oscillations, the polymer distribution is assumed to be at equilibrium and forms a depletion zone around the particle based on the mean-field approximation. The goal of the theoretical approach is to predict the apparent complex viscosity sensed by the particle and compare this with the actual viscosity of the bulk fluid. Due to the local inhomogeneity, substantial deviation between the apparent and true viscosity in the bulk needs to be corrected quantitatively. The resulting apparent complex viscosity or friction coefficient in the Fourier domain will help to interpret active and passive microrheological measurements of colloid-polymer mixtures that take polymer depletion into account

Adverse obstetrical outcomes for women with endometriosis and adenomyosis: A large cohort of the Japan Environment and Children's Study.

BackgroundBecause of the increased number of diagnosed cases of endometriosis or adenomyosis resulting in infertility, many women require assisted reproductive technology (ART) to become pregnant. However, incidences of obstetric complications are increased for women who conceive using ART. There has been no prospective cohort study examining the influence of endometriosis and adenomyosis on obstetric outcomes after adjusting for the confounding influence of ART therapy.ObjectiveThis study evaluated the impact of endometriosis and adenomyosis on the incidence of adverse pregnancy outcomes.Study designData were obtained from a prospective cohort study, known as the Japan Environment and Children's Study (JECS), of the incidence of obstetric complications for women with endometriosis and adenomyosis. The data of 103,099 pregnancies that resulted in live birth or stillbirth or that were terminated through abortion between February 2011 and July 2014 in Japan were included.ResultsWomen with endometriosis or adenomyosis were at increased risk for complications during pregnancy compared to those without a medical history of endometriosis (odds ratio [OR], 1.32; 95% confidence interval [CI], 1.23 to 1.41) or adenomyosis (OR, 1.72; 95% CI, 1.37 to 2.16). Our analysis showed that the adjusted ORs for obstetric complications of pregnant women who conceived naturally or after infertility treatment that did not involve ART therapy were 1.26 (CI, 1.17 to 1.35) for pregnant women with a history of endometriosis and 1.52 (CI, 1.19 to 1.94) for those with a history of adenomyosis.ConclusionsThe presence of endometriosis and adenomyosis significantly increased the prevalence of obstetric complications after adjusting for the influence of ART outcomes

Dataset supporting The interplay of field-tunable strongly correlated states in a multi-orbital moiré system

Source data for line plots in "The interplay of field-tunable strongly correlated states in a multi-orbital moire syste

Dataset supporting Highly Tunable Ground and Excited State Excitonic Dipoles in Multilayer 2H-MoSe2

Dataset for Figures 2-5 for 'Highly Tunable Ground and Excited State Excitonic Dipoles in Multilayer 2H-MoSe2': FIG. 2: Layer hybridised excitons in 2L 2H-MoSe2. a, VE dependence of the first derivative of the reflectance contrast spectra with respect to photon energy (d(ΔR/R0)/dE) in our 2L 2H-MoSe2 in the spectral range 1.68 - 1.78 eV. b, Calculated energies of the different hybrid IX2L-XA2s exciton states as a function of VE, which we label as hX1, hX2, hX3, and hX4 from low to high energy at VE > 0 V, respectively. The colour of the solid lines denotes the contribution of the different bare exciton states to each hybrid exciton. c, Schematics of the spin, valley, and layer configuration of the exciton states responsible for the exciton hybridisation shown in panel a for negative and positive applied VE (left and right panels, respectively). The exciton hybridisation is attributed to a second-order effective coupling between IX2L and the intralayer A exciton facilitated via the A and B exciton admixture (depicted by the glowing double arrows). d, The energy position of IX2L and XA2s as a function of applied electric field, as obtained from GW+BSE calculations. The labels identify the simplified bare exciton states. e Normalized theoretical oscillator strengths (red vertical line) and absorption spectra (black line) at 0 eV/Å and 0.03 eV/Å focusing on the energy range of IX2L and XA2s. The numerical precision of our calculations is estimated to be of the order of ±5 meV, see computational details in Supplementary Note S4. FIG. 3: Layer hybridised excitons in 3L MoSe2. a, VE dependence of d(ΔR/R0)/dE in the 3L MoSe2 region of our sample. b, Energies of the different hybrid IX3L-XA1s exciton states as a function of VE, where the colour of the solid lines denotes the contribution of the different bare exciton states to each hybrid exciton. c, Schematics of the spin, valley, and layer configuration of the exciton states responsible for the exciton hybridisation shown in panel a for negative and positive applied VE (left and right panels, respectively). The exciton hybridisation is attributed to direct spin-conserving interlayer hole tunnelling between L1 and L3. FIG. 4: Magneto-optical properties of layer-hybridised excitons in 2L MoSe2 and 3L MoSe2. a, Zeeman splitting of hX4 at three different applied VE. The blue dots represent the experimental values, while the blue solid lines show linear fits of the experimental data, from which we are able to estimate the effective g-factor of this hybrid exciton at each applied VE. b, VE-driven evolution of the g-factor of the hybrid excitons hX3 (-5 to 0 V, red shaded area) and hX4 (0 to 5 V, blue shaded area) in bilayer MoSe2 (bottom panel). The top panel shows the VE-dependent contributions of each bare exciton state|CIX(X)3,4|2 to the corresponding hybrid excitons. c, Zeeman splitting of IX3L at measured at VE = 0 V. FIG. 5: Observation of excited states of IX2L and IX3L. a, VE dependence of d2(ΔR/R0)/dE2 in a second location of the 2L 2H-MoSe2 sample in the spectral range 1.67 - 1.83 eV. b, d2(ΔR/R0)/dE2 in another location of the 3L 2H-MoSe2 sample in the spectral range 1.58 - 1.8 eV. c Calculated energies of the different exciton states of 2L 2H-MoSe2 including IX2s,2L with same spin and layer configuration as IX2L. d Calculated energies of the different exciton states in 3L 2H-MoSe2 including IX2s,3L with the same spin and layer configuration as IX3L