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Systematic Comparison of Indicator and Pathogenic Viruses Using High-Throughput qPCR Identifies Pepper Mild Mottle Virus as a Robust Indicator of Virus Removal in Wastewater Treatment
The selection of appropriate viral indicators for evaluating wastewater treatment performance remains challenging because candidate markers have rarely been compared systematically within a unified analytical framework. Here, we collected influent and effluent samples monthly for one year from two wastewater treatment plants in Japan and conducted, to our knowledge, the first comprehensive comparison of 19 viral targets and one protozoan target using high-throughput quantitative PCR. Pepper...
Model-Based Learning of Whittle indices
Announce Type: replace Abstract: We present BLINQ, a new model-based algorithm that learns the Whittle indices of an indexable, communicating and unichain Markov Decision Process (MDP). Our approach relies on building an empirical estimate of the MDP and then computing its Whittle indices using an extended version of a state-of-the-art existing algorithm. We provide a proof of convergence to the Whittle indices we want to learn as well as a bound on the time needed to learn them with...
Economic activity and social change in the UK, real-time indicators: 29 May 2026
Economic activity and social change in the UK, real-time indicators: 29 May 2026 Early experimental data and analysis on economic activity and social change in the UK. These real-time indicators are created using rapid response surveys, novel data sources and experimental methods. Documents Details Official statistics are produced impartially and free from political influence.
Behavioral and Performance Indicators of Depression and Anxiety in Electronic Learning Systems
Announce Type: new Abstract: This study investigates whether behavioral and performance indicators derived from a Moodle-based learning management system are associated with university students' depression and anxiety in two undergraduate Computer Engineering courses. Using a quantitative observational design, LMS event logs, academic records, and self-reported Beck Depression Inventory-II and Beck Anxiety Inventory scores from 97 students were integrated. A broad set of behavioral and...
A Comparative Study of Exponential Sum-Connectivity and Product-Connectivity Gourava Indices for Benzenoid Hydrocarbons
arXiv:2606.05989v1 Announce Type: new Abstract: In this work, the exponential sum-connectivity Gourava index ($e^{SGO(G)}$) and the exponential product-connectivity Gourava index ($e^{PGO(G)}$) are computed and comparatively analyzed for benzenoid hydrocarbons. Our results demonstrate that these descriptors exhibit a strong mutual correlation and provide enhanced sensitivity in modeling the structural characteristics of molecular graphs. Regression analysis reveals that both indices are...
A Comparative Study of Exponential Sum-Connectivity and Product-Connectivity Gourava Indices for Benzenoid Hydrocarbons
Announce Type: replace Abstract: In this work, the exponential sum-connectivity Gourava index ($e^{SGO(G)}$) and the exponential product-connectivity Gourava index ($e^{PGO(G)}$) are computed and comparatively analyzed for benzenoid hydrocarbons. Our results demonstrate that these descriptors exhibit a strong mutual correlation and provide enhanced sensitivity in modeling the structural characteristics of molecular graphs. Regression analysis reveals that both indices are exceptionally...
Costa Rica paid landowners to restore forests and biodiversity—bioacoustics indicate that it worked
June 4, 2026 report Costa Rica paid landowners to restore forests and biodiversity—bioacoustics indicate that it worked Krystal Kasal Author Gaby Clark Scientific Editor Robert Egan Associate Editor Forest restoration can help fight climate change and restore lost biodiversity, but the satellite-based techniques used to measure successful forest restoration have been less-than-helpful for measuring changes in biodiversity. Instead, a team of researchers listened to the sounds of life in the...
A red-emitting, genetically encoded indicator for two-photon voltage recording in vivo
Genetically encoded voltage indicators (GEVIs) enable minimally invasive, cell-type-specific optical measurements of neuronal membrane potential with millisecond temporal resolution. Red-shifted GEVIs are especially advantageous because they permit spectral multiplexing with complementary sensors and enable all-optical circuit interrogation in combination with blue-light-activated opsins. Despite these advantages, existing red GEVIs remain poorly suited for in vivo use due to limited...
Magnetic field helps binary star systems form, new simulations indicate
Magnetic field helps binary star systems form, new simulations indicate Sadie Harley Scientific Editor Alexander Pol Deputy Editor New simulations show that interactions with a magnetic field can work to decrease the distance between still forming binary protostars. These results can help explain the characteristics of the binary star systems observed in the Milky Way. The results can also be extrapolated to binary black holes, giving insights into how supermassive black holes evolve.
What nine different indicators say about market exuberance, according to Goldman Sachs
Goldman Sachs’ research illustrates that while the stock market is closer to a dangerous bubble than it was a few months ago, an overall assessment of risk indicators is not that alarming.