Oil prices and emerging market exchange rates

This paper investigates the role of oil prices in explaining the dynamics of selected emerging countries exchange rates. Using daily data series, the study concludes that a rise in oil price is leading to a significant appreciation in emerging economies currencies against the US dollar. In our study, we divide daily returns from 03/01/2003 to 02/06/2010 into 3 subsamples and test the role of oil price changes on exchange rate movements. We employ generalized impulse response functions to trace out the dynamic response of each exchange rate in three different time periods. Our findings suggest that oil price dynamics are changing significantly in the sample period and the relation between oil prices and exchange rates becomes more relevant after the 2008 financial crisis.oil prices; emerging market exchange rates; international financial markets; financial crisis

Oil prices and emerging market exchange rates

This paper investigates the role of oil prices in explaining the dynamics of selected emerging countries exchange rates. Using daily data series, the study concludes that a rise in oil price is leading to a significant appreciation in emerging economies currencies against the US dollar. In our study, we divide daily returns from 03/01/2003 to 02/06/2010 into 3 subsamples and test the role of oil price changes on exchange rate movements. We employ generalized impulse response functions to trace out the dynamic response of each exchange rate in three different time periods. Our findings suggest that oil price dynamics are changing significantly in the sample period and the relation between oil prices and exchange rates becomes more relevant after the 2008 financial crisis

Oil prices and emerging market exchange rates

This paper investigates the role of oil prices in explaining the dynamics of selected emerging countries exchange rates. Using daily data series, the study concludes that a rise in oil price is leading to a significant appreciation in emerging economies currencies against the US dollar. In our study, we divide daily returns from 03/01/2003 to 02/06/2010 into 3 subsamples and test the role of oil price changes on exchange rate movements. We employ generalized impulse response functions to trace out the dynamic response of each exchange rate in three different time periods. Our findings suggest that oil price dynamics are changing significantly in the sample period and the relation between oil prices and exchange rates becomes more relevant after the 2008 financial crisis

Drugst.One -- A plug-and-play solution for online systems medicine and network-based drug repurposing

In recent decades, the development of new drugs has become increasingly expensive and inefficient, and the molecular mechanisms of most pharmaceuticals remain poorly understood. In response, computational systems and network medicine tools have emerged to identify potential drug repurposing candidates. However, these tools often require complex installation and lack intuitive visual network mining capabilities. To tackle these challenges, we introduce Drugst.One, a platform that assists specialized computational medicine tools in becoming user-friendly, web-based utilities for drug repurposing. With just three lines of code, Drugst.One turns any systems biology software into an interactive web tool for modeling and analyzing complex protein-drug-disease networks. Demonstrating its broad adaptability, Drugst.One has been successfully integrated with 21 computational systems medicine tools. Available at https://drugst.one, Drugst.One has significant potential for streamlining the drug discovery process, allowing researchers to focus on essential aspects of pharmaceutical treatment research.Comment: 45 pages, 6 figures, 7 table

Intraperitoneal drain placement and outcomes after elective colorectal surgery: international matched, prospective, cohort study

Despite current guidelines, intraperitoneal drain placement after elective colorectal surgery remains widespread. Drains were not associated with earlier detection of intraperitoneal collections, but were associated with prolonged hospital stay and increased risk of surgical-site infections.Background Many surgeons routinely place intraperitoneal drains after elective colorectal surgery. However, enhanced recovery after surgery guidelines recommend against their routine use owing to a lack of clear clinical benefit. This study aimed to describe international variation in intraperitoneal drain placement and the safety of this practice. Methods COMPASS (COMPlicAted intra-abdominal collectionS after colorectal Surgery) was a prospective, international, cohort study which enrolled consecutive adults undergoing elective colorectal surgery (February to March 2020). The primary outcome was the rate of intraperitoneal drain placement. Secondary outcomes included: rate and time to diagnosis of postoperative intraperitoneal collections; rate of surgical site infections (SSIs); time to discharge; and 30-day major postoperative complications (Clavien-Dindo grade at least III). After propensity score matching, multivariable logistic regression and Cox proportional hazards regression were used to estimate the independent association of the secondary outcomes with drain placement. Results Overall, 1805 patients from 22 countries were included (798 women, 44.2 per cent; median age 67.0 years). The drain insertion rate was 51.9 per cent (937 patients). After matching, drains were not associated with reduced rates (odds ratio (OR) 1.33, 95 per cent c.i. 0.79 to 2.23; P = 0.287) or earlier detection (hazard ratio (HR) 0.87, 0.33 to 2.31; P = 0.780) of collections. Although not associated with worse major postoperative complications (OR 1.09, 0.68 to 1.75; P = 0.709), drains were associated with delayed hospital discharge (HR 0.58, 0.52 to 0.66; P < 0.001) and an increased risk of SSIs (OR 2.47, 1.50 to 4.05; P < 0.001). Conclusion Intraperitoneal drain placement after elective colorectal surgery is not associated with earlier detection of postoperative collections, but prolongs hospital stay and increases SSI risk

Automatic number plate information extraction and recognition for intelligent transportation system

WOS: 000247867000004In this paper, a new license plate information retrieval system is designed and developed. The system has two main modules: segmentation and recognition. In segmentation, interested information on the image is extracted through the processes of Kaiser resizing, morphological filtering, artificial shifting and bi-directional vertical thresholding. In recognition module, a novel approach for principal component analysis (PCA) and fast backpropagation neural net composition is used as a recognizer. The novel approach is about the construction of Eigen space through the PCA that is used for feature extraction. Our approach is more tolerable to the problems of classical application PCA such as rotation, scaling and character width dependence. The outputs of the new feature extractor used as inputs to the fast-backpropagation neural net recognizer module. This neural network trained with scaled conjugate gradient function. For each module, alternative available methods are mentioned and proper sequence of operations is developed. Finally, overall performance of the system is exported

Oil Prices and Emerging Market Exchange Rates

This paper investigates the role of oil prices in explaining the dynamics of selected emerging countries exchange rates. Using daily data series, the study concludes that a rise in oil price is leading to a significant appreciation in emerging economies currencies against the US dollar. In our study, we divide daily returns from 03/01/2003 to 02/06/2010 into 3 subsamples and test the role of oil price changes on exchange rate movements. We employ generalized impulse response functions to trace out the dynamic response of each exchange rate in three different time periods. Our findings suggest that oil price dynamics are changing significantly in the sample period and the relation between oil prices and exchange rates becomes more relevant after the 2008 financial crisis.oil prices, emerging market exchange rates, financial crisis

Security Economics: an adversarial risk analysis approach to airport security

We analyze the case of protecting an airport, in which there is concern with terrorist threats against the Air Traffic Control Tower. To deter terrorist actions, airport authorities rely on various protective measures, which entail multiple consequences. By deploying them, airport authorities expect to reduce the probabilities and potential impacts of terrorist actions. We aim at giving advice to the airport authorities by devising a security resource allocation plan. We use the framework of adversarial risk analysis to deal with the problem.This project has received funding from the European Union’s Seventh Framework Programme for Research, Technological Development and Demonstration under grant agreement no 285223. Work has been also supported by the Spanish Ministry of Economy and Innovation program MTM2011- 28983-C03-01, the Government of Madrid RIESGOS-CM program S2009/ESP-1685 and the AXA-ICMAT Chair on Adversarial Risk AnalysisPeer Reviewe

The synthesis of a new chitosan based superplasticizer and investigation of its effects on concrete properties

Chitosan-g-POEGMA (Chitosan-g-poly[oligo(ethyleneglycol) methyl ether methacrylate]) graft copolymers are prepared by grafting of oligo (ethylene glycol methyl ether) methacrylate (OEGMA) on chitosan via redox free radical polymerization method using ceric ammonium nitrate (CAN) as the initiator at 40 degrees C. Then the resulting copolymers are sulphated by sulphuric acid, chlorosulfonic acid and fuming sulphuric acid (Oleum). The compounds are characterized by FT-IR, NMR, and Elemental analysis. The chitosan homopolymer is also sulphated to compare the results. Taking all characterization results and water solubility ratios into account, it is decided to conduct tests on concrete specimens containing graft copolymers sulphated with oleum sulfuric

Influence of high-dose methotrexate therapy on the primordial follicles of the mouse ovary

Objective: High-dose methotrexate (MTX) is one of the most prescribed agents in many malignant diseases affecting girls and young women of reproductive ages. This animal study directly measures the primordial follicle loss following exposure to high-dose MTX