Globalisation and the rise of india and china: challenges and opportunities for the East Midlands

Review of literature around the recent (late 20th Century) phase of globalisation, with particular focus on the developing economies of India and China. Includes an economic and policy review of the East Midlands - identifying business and strategic challenges/opportunities for the region

Preprint arXiv: 2211.16439 Submitted on 29 Nov 2022

We experimentally assess the suitability of transmon qubits with fixedfrequencies and fixed interactions for the realization of analogue quantumsimulations of spin systems. We test a set of necessary criteria for this goalon a commercial quantum processor using full quantum process tomography andmore efficient Hamiltonian tomography. Significant single qubit errors at lowamplitudes are identified as a limiting factor preventing the realization ofanalogue simulations on currently available devices. We additionally findspurious dynamics in the absence of drive pulses, which we identify withcoherent coupling between the qubit and a low dimensional environment. Withmoderate improvements, analogue simulation of a rich family of time-dependentmany-body spin Hamiltonians may be possible

Use of high resolution bathymetry and backscatter for mapping depositional environments on the New Hampshire continental shelf

The New Hampshire continental shelf is extremely heterogeneous and includes extensive bedrock outcrops, sand and gravel deposits and muddy basins. Many of the depositional features are glacial in origin and have been significantly modified by marine processes as sea level fluctuated since the end of the last major glaciation. Recent high resolution multibeam echosounder (MBES) bathymetric and backscatter surveys by the National Ocean Survey and University of New Hampshire Center for Coastal and Ocean Mapping/Joint Hydrographic Center has revealed features of the seafloor in exceptional detail that had not been previously described. Synthesis of the MBES bathymetry and backscatter, coupled with an extensive archived database consisting of subbottom seismics, bottom sediment grain size data and vibracores, is being used to develop new surficial geology maps and significantly improve our knowledge of the character and origin of the major depositional features of the New Hampshire shelf and vicinity (with support from the Bureau of Ocean Energy Management). Included are a number of large glacial features (e.g., drumlins) covering the bedrock that have been modified by marine processes (waves and currents). Some of the larger features were previously mapped (Birch, F.S. 1984. A geophysical survey of sedimentary deposits on the inner continental shelf of New Hampshire. Northeastern Geology 6:207-221), but the lack of high resolution bathymetry limited their characterization and interpretation. The new high resolution bathymetry and backscatter has resolved this limitation. Some of these deposits may represent significant sand and gravel deposits on the New Hampshire continental shelf that have the potential for future use for beach nourishment and other efforts to build coastal resiliency

Using acoustic waves to induce high-frequency current oscillations in superlattices

We show that GHz acoustic waves in semiconductor superlattices can induce THz electron dynamics that depend critically on the wave amplitude. Below a threshold amplitude, the acoustic wave drags electrons through the superlattice with a peak drift velocity overshooting that produced by a static electric field. In this regime, single electrons perform drifting orbits with THz frequency components. When the wave amplitude exceeds the critical threshold, an abrupt onset of Bloch-like oscillations causes negative differential velocity. The acoustic wave also affects the collective behavior of the electrons by causing the formation of localised electron accumulation and depletion regions, which propagate through the superlattice, thereby producing self-sustained current oscillations even for very small wave amplitudes. We show that the underlying single-electron dynamics, in particular the transition between the acoustic wave dragging and Bloch oscillation regimes, strongly influence the spatial distribution of the electrons and the form of the current oscillations. In particular, the amplitude of the current oscillations depends non-monotonically on the strength of the acoustic wave, reflecting the variation of the single-electron drift velocity.Comment: 10 pages, 8 figure

Infrared probe of the anomalous magnetotransport of highly oriented pyrolytic graphite in the extreme quantum limit

We present a systematic investigation of the magnetoreflectance of highly oriented pyrolytic graphite in magnetic field B up to 18 T . From these measurements, we report the determination of lifetimes tau associated with the lowest Landau levels in the quantum limit. We find a linear field dependence for inverse lifetime 1/tau(B) of the lowest Landau levels, which is consistent with the hypothesis of a three-dimensional (3D) to 1D crossover in an anisotropic 3D metal in the quantum limit. This enigmatic result uncovers the origin of the anomalous linear in-plane magnetoresistance observed both in bulk graphite and recently in mesoscopic graphite samples

The Role of Dysregulated Glucose Metabolism in Epithelial Ovarian Cancer

Epithelial ovarian cancer (EOC) is the most lethal gynecologic cancer and also one of the most poorly understood. Other health issues that are affecting women with increasing frequency are obesity and diabetes, which are associated with dysglycemia and increased blood glucose. The Warburg Effect describes the ability of fast-growing cancer cells to preferentially metabolize glucose via anaerobic glycolysis rather than oxidative phosphorylation. Recent epidemiological studies have suggested a role for hyperglycemia in the pathogenesis of a number of cancers. If hyperglycemia contributes to tumour growth and progression, then it is intuitive that antihyperglycemic drugs may also have an important antitumour role. Preliminary reports suggest that these drugs not only reduce available plasma glucose, but also have direct effects on cancer cell viability through modification of molecular energy-sensing pathways. This review investigates the effect that hyperglycemia may have on EOC and the potential of antihyperglycemic drugs as therapeutic adjuncts

Reactions of Dimethylether in Single Crystals of the Silicoaluminophosphate STA-7 Studied via Operando Synchrotron Infrared Microspectroscopy

Open access via the Springer Compact Agreement. We thank the Diamond Light Source for provision of beam time and support facilities at the MIRIAM beamline B22 (Experiments SM11766-1 and SM13725-1). Financial support from the EPSRC Catalysis Hub (Suwardiyanto) and an Industrial CASE Award (EPSRC/BP Chemicals) (Price) are also acknowledged.Peer reviewedPublisher PD