This study examines the dynamic relationship between the gold price and the exchange rate in pre- and during Covid-19 pandemic in India. We consider the periods of about equal length for both the pre- and during Covid-19 by considering the data from January 1, 2019 till February 28, 2021. The descriptive analysis shows a significant increase in the dynamics of gold price and exchange rate after mid-March 2020. The results derived from the ARDL approach show a positive and significant relationship between the gold price and exchange rate both in the long and short run. We have selected the best fitted bivariate copula to study the joint distribution of the gold price and the exchange rate. Using the copula model, we examine the relationship between the gold price and exchange rate in a bivariate framework. We have studied the dependence between them including the tail dependencies using the fitted copula. Our findings reveal that the gold price and exchange rate are significantly correlated for the entire study period, and it also reveals that there is no tail dependence. However, the mutual association between the variables is not confirmed in the considered Covid-19 period.
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http://dx.doi.org/10.1016/j.resourpol.2022.103126 | DOI Listing |
Sci Rep
January 2025
Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
The current gold standard for the study of human movement is the marker-based motion capture system that offers high precision but constrained by costs and controlled environments. Markerless pose estimation systems emerge as ecological alternatives, allowing unobtrusive data acquisition in natural settings. This study compares the performance of two popular markerless systems, OpenPose (OP) and DeepLabCut (DLC), in assessing locomotion.
View Article and Find Full Text PDFMicrobiol Spectr
January 2025
Sunshine Coast Health Institute, Birtinya, Queensland, Australia.
Pleural infections are common and associated with substantial healthcare costs, morbidity, and mortality. Accurate diagnosis remains challenging due to low culture positivity rates, frequent polymicrobial involvement, and non-specific diagnostic biomarkers. Here, we undertook a prospective study examining the feasibility and performance of molecular methods for diagnosing suspected pleural infection.
View Article and Find Full Text PDFOpen Heart
January 2025
Department of Cardiology, University Hospital Basel, Basel, Switzerland.
Background: The majority of functional ischemia tests in patients with suspected chronic coronary syndromes (CCS) yield normal results. Implementing gatekeepers for patient preselection, such as pretest probability (PTP) and/or coronary artery calcium score (CACS), could reduce the number of normal scan results, radiation exposure and costs. However, the efficacy and safety of these approaches remain unclear.
View Article and Find Full Text PDFANZ J Surg
January 2025
Otolaryngology Head and Neck Surgery, Darling Downs Hospital and Health Service, Toowoomba, Queensland, Australia.
Background: Australia has the highest global incidence of keratinocyte cancer. Surgically managing keratinocyte cancers in regional Australia presents geographic and economic challenges, which necessitate cost-effective resource allocation. Previous work has outlined the cost benefit for outpatient day surgical excision of head and neck skin lesions that can be closed primarily.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China.
Background: Localized surface plasmon resonance (LSPR) sensor has drawn continuous attention to application of the detection of antibody, protein, virus, and bacteria. However, natural recognition molecules, such as antibody, which possess some properties, including low thermal stability, complicated operation and high price, uncontrollability of length and size and a tendency to accumulate easily on the surface of chip to reduce the sensitive of method. Furthermore, common blocking agents are not suitable for development of novel biosensors.
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