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We present a dense and metric 3D mapping pipeline designed for embedded operation on-board UAVs, by loosely coupling deep neural networks trained to infer dense depth single images with a SLAM system that restores metric scale from sparse depth. In contrast to computationally restrictive approaches that leverage multiple views, we propose a highly efficient, single-view approach without sacrificing 3D mapping performance. This enables real-time construction of a global 3D voxel map by iterative fusion of the rescaled dense depth maps obtained via raycasting from the estimated camera poses. Quantitative and qualitative experimentations of our framework in challenging environmental conditions show comparable or superior performance with respect to state-of-the-art approaches via a better effectiveness-efficiency trade-off. [ABSTRACT FROM AUTHOR]

This article employs a wavelet-based methodology to analyze and characterize the relationships between cryptocurrencies and country-specific economic policy uncertainty (EPU). The authors analyze these relationships over the different stages of the COVID pandemic (pre-COVID, COVID, and post-COVID), and across various investment frequencies. Their results show that the cryptomarket does not function as a hedge or safe haven against economic policy uncertainty at the country level. Moreover, they find these relationships to be dynamic, evolving across specific time periods. Notably, during the COVID-19 pandemic, there was an increase in relationships, indicating the pandemic's impact on market dynamics. Their analysis highlights the prevalence of these relationships at short-term investment horizons, noting the significant participation of retail investors actively involved in high-frequency trading. Lastly, the findings strongly align with the adaptive market hypothesis (AMH), emphasizing that investor behavior is subject to behavioral biases, and rationality is not always evident. [ABSTRACT FROM AUTHOR]

Aim/purpose – In this paper, we explore the contribution of Human Resource Management Systems (HRMS) to innovation in SMEs. We consider two HRMS with different orientations: Commitment HRMS (focusing on long-term career development to increase employees’ creativity) and Collaboration HRMS (focusing on the use of external human capital to achieve innovation). We believe that SMEs’ radical and incremental innovation follow different paths from a configurational perspective. We want to understand how the two HRMS influence radical and incremental innovation, consequently, we explore the contributions of Commitment HRMS and Collaboration HRMS.

Background Pan-intestinal capsule endoscopy (PCE) evaluates the small bowel and colon noninvasively. This study evaluated diagnostic accuracy and safety of PCE vs. colonoscopy as first-line examination in suspected mid–lower gastrointestinal bleeding (MLGIB). Methods In this prospective, single-center, single-blinded cohort study, consecutive patients with suspected MLGIB underwent PCE followed by same-day colonoscopy. Diagnostic accuracy for potentially hemorrhagic lesions (PHLs; combined diagnosis by PCE + colonoscopy) and incidence of adverse events were assessed. Results 100 patients were included (median age 70 [range 18–92] years; 65% female). PHLs were diagnosed in 46 patients, including small-bowel and/or colon angioectasias in 32. PCE correctly identified 54 individuals without PHLs, and 95.7% (44/46) of those with PHLs vs. 50.0% (23/46) for colonoscopy (P<0.01). PHLs were detected by PCE alone in 65.2% (30/46), both examinations in 28.3% (13/46), and colonoscopy alone in 6.5% (3/46). PHLs were diagnosed at the ileocolonic region in 28% of patients, with PCE diagnosing 25/28 cases (89.3%) and colonoscopy diagnosing 23/28 (82.1%; P=0.13). Interventional procedures were performed at colonoscopy in 13/81 patients with iron-deficiency anemia (16.0%) vs. 6/19 patients with overt bleeding (31.6%; P<0.01). No significant adverse events occurred with PCE vs. 2% with colonoscopy. Conclusions In patients with MLGIB, PCE avoided further invasive procedures in >50% of patients. PCE was safe and more effective than colonoscopy in identifying PHL both in the small bowel and colon. These results support the potential use of PCE as first-line examination in patients with suspected MLGIB. [ABSTRACT FROM AUTHOR]

Wine tourism is essentially tourism in rural areas linked to wine and vineyards. However, the dissemination of viticultural heritage and wine culture with the aim of contributing to a greater connection between tourists and wine sector, even in urban environments, is an option that has been increasing in some countries. In fact, wine tourism involves a wide ecosystem of actors, which can include the hotels located in the center of the cities. In addition, inside of some cities, it could be possible for some hotels to implement small-scales vineyards. These places could represent an agricultural, historical, and cultural heritage with enormous value which could also be used for tourist purposes. Thus, the main goal of this work is to present the experience and the technical challenges during the implementation of an urban vineyard in a Portuguese Historic Hotel located in the center of the city of Viseu. In addition, the activities related with wine tourism centered on the urban vineyard are shown. The strategy for the recovery of green spaces and the hotel's communication policy are also presented and discussed.