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Verification of Low-Dimensional Neural Network Control

We verify safety of a nonlinear continuous-time system controlled by a neural network controller. The system is decomposed into low-dimensional subsystems connected in a feedback loop. Our application is a rocket landing, and open-loop properties of the two-dimensional altitude subsystem are verified using worst-case simulations. Closed-loop safety properties (crash-avoidance) of the full system a

Quantifying soil carbon sequestration from regenerative agricultural practices in crops and vineyards

Introduction: Regenerative agriculture commonly aims to increase soil carbon sequestration, with potential benefits for human and ecosystem health, climate mitigation, and biodiversity. However, the effectiveness of various regenerative practices at increasing carbon sequestration is unclear. Methods: This study identified and quantified the yearly soil carbon sequestration rate of regenerative pr

Unusual sources of fossil micrometeorites deduced from relict chromite in the small size fraction in ~467 Ma old limestone

Extraterrestrial chrome spinel and chromite extracted from the sedimentary rock record are relicts from coarse micrometeorites and rarely meteorites. They are studied to reconstruct the paleoflux of meteorites to the Earth and the collisional history of the asteroid belt. Minor element concentrations of Ti and V, and oxygen isotopic compositions of these relict minerals were used to classify the m

Genetic deletion of hormone-sensitive lipase in mice reduces cerebral blood flow but does not aggravate the impact of diet-induced obesity on memory

Hormone-sensitive lipase (HSL) is active throughout the brain and its genetic ablation impacts brain function. Its activity in the brain was proposed to regulate bioactive lipid availability, namely eicosanoids that are inflammatory mediators and regulate cerebral blood flow (CBF). We aimed at testing whether HSL deletion increases susceptibility to neuroinflammation and impaired brain perfusion u

Dual-binary phase gratings for x-ray interferometry

X-ray phase-contrast imaging by grating interferometry has in the past decades been established both at synchrotron radiation sources and at conventional x-ray tubes. Due to the sensitivity to x-ray phase shifting, contrast in soft tissue has been improved significantly and the possibilities to do virtual histology of tissue biopsies are being pioneered. Constraints in the design of a grating inte

Apparently Isolated Ventricular Septal Defect, Prenatal Diagnosis, Association with Chromosomal Aberrations, Spontaneous Closure Rate in Utero and during the First Year of Life : A Systematic Review

Aim: To evaluate the incidence of chromosomal aberrations in apparently isolated ventricular septal defects (VSD), quantify the timing of diagnosis of prenatally diagnosed VSDs, and define the spontaneous closure rate prenatally both in utero and during the first year of life. Materials and methods: Medline, PubMed, and the Cochrane Database Library were searched to identify studies published betw

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Jorge Ibargüengoitia is one of the most prominent writers in 20th-century Mexican literature. This study provides an analysis of his narrative in the work Dos Crímenes. The primary objective is to elucidate how the author constructs his narrative threads through the use of irony, which becomes a recurrent tool in his style. To accomplish this, it is proposed that Ibargüengoitia employs different t

Are Pairs More Attentive Towards Feedback Than Individuals? A Glance into Feedback Neglect for Middle-School Students Using an Educational Game in History

Critical constructive feedback (CCF), is said to be a key ingredient in learning. However, if and how learners engage in CCF is rarely studied in collaborative learning situations. This study aims to filling this research gap by analyzing data logs from dyads of middle school students using an educational game in history, evaluating their inclination to dismiss or attend to feedback when making er

Association of Somatic TET2 Mutations With Giant Cell Arteritis

Objective: Giant cell arteritis (GCA) is an age-related vasculitis. Prior studies have identified an association between GCA and hematologic malignancies (HMs). How the presence of somatic mutations that drive the development of HMs, or clonal hematopoiesis (CH), may influence clinical outcomes in GCA is not well understood. Methods: To examine an association between CH and GCA, we analyzed sequen

Patient acceptable symptom state and treatment failure threshold values for work productivity and activity Impairment and EQ-5D-5L in osteoarthritis

OBJECTIVE: To estimate patient acceptable symptom state (PASS) and treatment failure (TF) threshold values for Work Productivity and Activity Impairment (WPAI) measure and EQ-5D-5L among people with hip or knee osteoarthritis (OA) 3 and 12 months following participation in a digital self-management intervention (Joint Academy®).METHODS: Among the participants, we computed work and activity impairm

Using Portable Virtual Reality to Assess Mobility of Blind and Low-Vision Individuals With the Audomni Sensory Supplementation Feedback

Numerous electronic travel aids (ETAs) to increase the mobility of blind or low-vision (BLV) individuals have been proposed. However, the lack of established and well-motivated methods, and of recruiting enough BLV test participants, keeps a successful aid illusory. To combat this, a new aid-agnostic questionnaire focused on mobility, the Desire of Use Questionnaire for Mobility of BLV individuals

vNOTES retroperitoneal transient uterine artery occlusion : a new approach to control bleeding during a high-risk evacuation of products of conception

Objective: To describe a retroperitoneal transient occlusion of the uterine or internal iliac artery in conjunction with a high-risk evacuation of products of conception. The procedure was performed vaginally, minimally invasively, via vaginal natural orifice transluminal endoscopic surgery. Design: Description of the surgical technique using original video footage. This study was exempted from re

Defined shapes of carotid artery calcifications on panoramic radiographs correlate with specific signs of cardiovascular disease on ultrasound examination

Objective: The aim was to optimize diagnostics for carotid artery calcifications (CACs) on panoramic radiographs (PRs) to identify cardiovascular disease (CVD) by investigating how 4 defined CAC shapes are associated with ultrasound (US) findings indicating CVD. Study Design: The study included 414 participants (802 neck sides) from the Malmö Offspring Dental Study, examined with PRs. The PRs were

Quantification of the in vivo brain ultrashort-T2* component in healthy volunteers

Purpose: Recent work has shown MRI is able to measure and quantify signals of phospholipid membrane-bound protons associated with myelin in the human brain. This work seeks to develop an improved technique for characterizing this brain ultrashort- (Formula presented.) component in vivo accounting for (Formula presented.) weighting. Methods: Data from ultrashort echo time scans from 16 healthy volu

Immune evasion by proteolytic shedding of natural killer group 2, member D ligands in Helicobacter pylori infection

Background: Helicobacter pylori (H. pylori) uses various strategies that attenuate mucosal immunity to ensure its persistence in the stomach. We recently found evidence that H. pylori might modulate the natural killer group 2, member 2 (NKG2D) system. The NKG2D receptor and its ligands are a major activation system of natural killer and cytotoxic T cells, which are important for mucosal immunity a

How Agricultural Commercialization Impacts Migrants' Land Tenure : Unpacking Displacement and Tenurial Adaptations in Ghana's Agricultural Landscape

Following green revolution ideologies, smallholder commercialization is promoted as a pathway to African economic transformation. Nonetheless, polices that incentivize commercial production in Ghana affect migrant groups negatively with respect to land tenure. While some migrants are displaced from rented lands, others offer their labour services in exchange for the right to "freely” intercrop on

European Society for Organ Transplantation (ESOT) Consensus Statement on Outcome Measures in Liver Transplantation According to Value-Based Health Care

Liver transplantation is a highly complex, life-saving, treatment for many patients with advanced liver disease. Liver transplantation requires multidisciplinary teams, system-wide adaptations and significant investment, as well as being an expensive treatment. Several metrics have been proposed to monitor processes and outcomes, however these lack patient focus and do not capture all aspects of t