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Tracking Rats in Operant Conditioning Chambers Using a Versatile Homemade Video Camera and DeepLabCut

Operant conditioning chambers are used to perform a wide range of behavioral tests in the field of neuroscience. The recorded data is typically based on the triggering of lever and nose-poke sensors present inside the chambers. While this provides a detailed view of when and how animals perform certain responses, it cannot be used to evaluate behaviors that do not trigger any sensors. As such, ass

Advancing Tin Halide Perovskites : Strategies toward the ASnX3Paradigm for Efficient and Durable Optoelectronics

Various less-toxic substitutes for the Pb2+-based perovskites have been proposed, of which Sn2+-based metal halide perovskites (namely, Sn-PVSKs) hold the best prospects because of their optoelectronic properties comparable to those of the Pb analogues. Nevertheless, the intrinsic instability and unfavorable crystallization of Sn-PVSKs place restrictions on both the device performance/durability a

Cubic Rashba Effect in the Surface Spin Structure of Rare-Earth Ternary Materials

Spin-orbit interaction and structure inversion asymmetry in combination with magnetic ordering is a promising route to novel materials with highly mobile spin-polarized carriers at the surface. Spin-resolved measurements of the photoemission current from the Si-terminated surface of the antiferromagnet TbRh2Si2 and their analysis within an ab initio one-step theory unveil an unusual triple winding

Convergence analysis of iterative learning control using pseudospectra

Iterative learning control (ILC) is an approach to improve the performance of a system that repeats the sameoperation. In this paper, we apply the theory of pseudospectra to transient analysis of ILC. The focus of thispaper is on frequency-domain analysis of filter-based ILC. Moreover, the effect of finite trial length on thetransient growth is discussed.

Longitudinal In Vivo Imaging and Quantification of Human Pancreatic Islet Grafting and Contributing Host Cells in the Anterior Eye Chamber

Imaging beta cells is a key step towards understanding islet transplantation. Although different imaging platforms for the recording of beta cell biology have been developed and utilized in vivo, they are limited in terms of allowing single cell resolution and continuous longitudinal recordings. Because of the transparency of the cornea, the anterior chamber of the eye (ACE) in mice is well suited

Five-Full-Block Structured Singular Values of Real Matrices Equal Their Upper Bounds

We show that the structured singular value of a real matrix with respect to five full complex uncertainty blocks equals its convex upper bound. This is done by formulating the equality conditions as a feasibility SDP and invoking a result on the existence of a low-rank solution. A counterexample is given for the case of six uncertainty blocks. Known results are also revisited using the proposed ap

Acute reduction of cerebrospinal fluid volume prior to spinal anesthesia : implications for sensory block extent

BACKGROUND: Multiple patient and clinical characteristics contribute to the variable outcome of spinal anesthesia (SPA). Acute reduction of cerebrospinal fluid (CSF) volume may alter the effect of SPA. The objective of the present study was to test if aspiration of 10 mL CSF immediately prior to SPA is associated with higher extent of sensory block. METHODS: Interventional cohort study. One hundre

Per-and polyfluoroalkyl substances in early pregnancy and risk for preeclampsia : A case-control study in southern Sweden

Preeclampsia is one of the most common causes of perinatal and maternal morbidity/ mortality. One suggested environmental risk factor is exposure to endocrine-disrupting pollutants such as per-and polyfluoroalkyl substances (PFAS). The present case-control study in southern Sweden aims to investigate the hypothesized association between serum concentrations of PFAS in early pregnancy and the risk

Biomarkers in Cardiovascular Dysautonomia: an Emerging Field

Background: Cardiovascular autonomic dysfunction is a multifactorial disorder manifested as orthostatic hypotension (OH) and postural orthostatic tachycardia syndrome (POTS). OH has been associated with an increased risk of cardiovascular disease (CVD), and the underlying mechanisms are not fully understood and explored.Aims and methods: Project I: We aimed to discover protein biomarkers related t

Enhancement of light output in ScxY1-xPO4:Eu3+ solid solutions

The luminescence properties of ScxY1-xPO4:Eu3+ solid solutions have been studied under excitation by synchrotron radiation in the energy range of 4.5-50 eV. The luminescence originating from three different types of emission centers was observed, and the origin of the emission centers was determined. The light output of ScxY1-xPO4:Eu3+ was shown to depend non-linearly on the ratio of Sc and Y cati

Response of eutrophication development to variations in nutrients and hydrological regime : A case study in the Changjiang River (Yangtze) basin

Data and literature related to water quality as well as nutrient loads were used to evaluate the Changjiang River (also Yangtze or Yangzi) Basin with respect to its hydrological regime, sediment transport, and eutrophication status. Waterbodies exhibited different eutrophic degrees following the ranking order of river < reservoir < lake. Most of the eutrophic lakes and reservoirs distributed in th

Trade and nationalism : Market integration in interwar Yugoslavia

This article empirically analyses the relationship between nationalism and regional economic integration in the Kingdom of Yugoslavia between the First and the Second World War. It argues that prevailing nationalism had a negative impact on the economic integration of the regions within the Kingdom and further contributed to the political disintegration of the Kingdom. The analysis implies that th

Precipitation phase uncertainty in cold region conceptual models resulting from meteorological forcing time-step intervals

Precipitation phase determination is a known source of uncertainty in surface-based hydrological, ecological, safety, and climate models. This is primarily due to the surface precipitation phase being a result of cloud and atmospheric properties not measured at surface meteorological or hydrological stations. Adding to the uncertainty, many conceptual hydrological models use a 24-h average air tem

Testing the applicability of physiographic classification methods toward improving precipitation phase determination in conceptual models

Regions with a large percentage of precipitation occurring near freezing experience high percentages (>10%) of misclassified precipitation events (rain versus snow) and necessitate efforts to improve precipitation phase determination schemes through the use of more accurate surface air temperature thresholds (Trs). Meteorological data from 169 sites in Scandinavia were used to test the applicabili

Detection and attribution of flood responses to precipitation change and urbanization : A case study in Qinhuai River Basin, Southeast China

Both flood magnitude and frequency might change under the changing environment. In this study, a procedure combining statistical methods, flood frequency analysis and attribution analysis was proposed to investigate the response of floods to urbanization and precipitation change in the Qinhuai River Basin, an urbanized basin located in Southeast China, over the period from 1986 to 2013. The Mann–K

Robust independent validation of experiment and theory : RIVET version 3

First released in 2010, the RIVET library forms an important repository for analysis code, facilitating comparisons between measurements of the final state in particle collisions and theoretical calculations of those final states. We give an overview of RIVET’s current design and implementation, its uptake for analysis preservation and physics results, and summarise recent developments including p

Self-reported bowel symptoms are associated with differences in overall gut microbiota composition and enrichment of Blautia in a population-based cohort

Background and Aim: Altered gut microbiota have been suggested as part of an etiology of irritable bowel syndrome (IBS), but studies have shown contrasting results. Our aim was to examine gut microbiota composition in a large population-based cohort, with respect to presence and severity of bowel symptoms. Methods: The study cohort consisted of 1988 participants of the Malmö Offspring Study (mean

Tracing KEGR

As a researcher, I have spent countless hours hunting for tags. Recently, I started thinking about ways to represent not just my physical search, but also the thought process taking place alongside the visible bodily activities: remembering – for example – the style, medium, size and placement of previous tags of interest in order to better spot similar tags and their likely locations.This video i

Students’ knowledge of emerging technology and sustainability through a design activity in technology education

The purpose of this study is to explore whether, and if so how, a design activity could encourage students to express and develop knowledge on emerging technology in relation to issues about sustainability. Several researchers have asserted that, in today’s technologically dependent society, it is important to be able to control technology and make informed decisions connected to technology. Desig