A public domain model for 1D temperature and rheology construction in basement-sedimentary geothermal exploration: an application to the Spanish Central System and adjacent basins

Brittle basement and sedimentary rocks, in particular if these are underlain by radiogenic crust, are considered a prime target for enhanced geothermal systems (EGS). They are marked by high geothermal gradients, caused by radiogenic heat production, and are well suited to be used for geothermal doublets after hydraulic stimulation. Critical...

Physical activity and quality of life in long-term hospitalized patients with severe mental illness: a cross-sectional study

Background. Increasing physical activity in patients with severe mental illness is believed to have positive effects on physical health, psychiatric symptoms and as well quality of life. Till now, little is known about the relationship between physical activity and quality of life in long-term hospitalized patients with severe mental illness and...

EFFORT-D study process evaluation: Challenges in conducting a trial into the effects of running therapy in patients with major depressive disorder

Background: Exercise is currently seen as an effective treatment for major depressive disorder (MDD). However, existing studies have focused mainly on mild-to-moderate depression. The moderate positive effect of exercise found in meta-analyses concerning these studies differs, however, from the harsh daily clinical practice, when trying to...

Geothermal energy in deep aquifers: A global assessment of the resource base for direct heat utilization

In this paper we present results of a global resource assessment for geothermal energy within deep aquifers for direct heat utilization. Greenhouse heating, spatial heating, and spatial cooling are considered in this assessment. We derive subsurface temperatures from geophysical data and apply a volumetric heat-in-place method to improve current...

Experimental error mitigation via symmetry verification in a variational quantum eigensolver

EFFORT-D: results of a randomised controlled trial testing the EFFect of running therapy on depression

Results of a randomised controlled trial testing the EFFect Of Running Therapy on Depression. Background. This randomised controlled trial explored the anti-depressive and health effects of add-on exercise (running therapy or Nordic walking) in patients with Major Depressive Disorder (MDD). Methods. Patients were recruited at three specialised...

Personality traits as predictors of exercise treatment adherence in major depressive disorder: lessons from a randomised clinical trial

Objective: The objective of this study was to explore the determinants of adherence in the EFFORT-D (EFFect Of Running Therapy) study in a specialised mental health care hospital setting. Methods: Patients with major depressive disorder (MDD) were given treatment as usual and half were randomised to an exercise intervention. Adherence was...

Harbours: the heart of the energy transition: the role of Northern harbours in the provision of clean energy

Harbours will play a significant role in transmission of energy (both electricity and hydrogen) towards 2050. The extension of North Sea offshore wind capacity up to 2050 (38 to72 GW on the Netherlands’ continental shelve; and some 200 to 300 GW on the total North sea area will partly be unlocked via harbours (1), (2). The aim of this study is...

Protecting quantum entanglement from leakage and qubit errors via repetitive parity measurements

Protecting quantum information from errors is essential for large-scale quantum computation. Quantum error correction (QEC) encodes information in entangled states of many qubits and performs parity measurements to identify errors without destroying the encoded information. However, traditional QEC cannot handle leakage from the qubit...

Variational preparation of finite-temperature states on a quantum computer

The preparation of thermal equilibrium states is important for the simulation of condensed matter and cosmology systems using a quantum computer. We present a method to prepare such mixed states with unitary operators and demonstrate this technique experimentally using a gate-based quantum processor. Our method targets the generation of...

High-Fidelity Controlled- Z Gate with Maximal Intermediate Leakage Operating at the Speed Limit in a Superconducting Quantum Processor

We introduce the sudden variant (SNZ) of the Net Zero scheme realizing controlled-Z (CZ) gates by baseband flux control of transmon frequency. SNZ CZ gates operate at the speed limit of trans verse coupling between computational and non-computational states by maximizing intermediate leakage. The key advantage of SNZ is tuneup simplicity, owing...

Logical-qubit operations in an error-detecting surface code