Results 121 to 130 of about 274,985 (284)
Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment
ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley +1 more source
Bio-nanocrystal Stabilized Biosurfactant Foams for Groundwater and Soil Remediation
Surfactants are crucial for reducing surface tension at liquid interfaces and have diverse applications in various fields. Solutions of surfactants can help remediate contaminated soil and groundwater.
Alirza Orujov +3 more
doaj +1 more source
ABSTRACT Diisononyl phthalate (DINP) is a high molecular weight phthalate and high production volume chemical. DINP's carcinogenic potential has been investigated in four rodent bioassays, with liver tumors observed in three of the studies. Authoritative assessments have hypothesized that DINP acts through the peroxisome proliferator‐activated receptor
Amanda N. Buerger +3 more
wiley +1 more source
Abstract Background Unaccompanied migrant youths are at elevated risk for exposure to trauma and related mental health challenges, but there is minimal evidence guiding best practices. We conducted a systematic review of quantitative studies that examined mental health evaluation and treatment services for unaccompanied migrant youths resettled in the ...
Natan J. Vega Potler +3 more
wiley +1 more source
Conifers growing in high‐elevation alpine environments in the mountains of Southern California, USA, are highly responsive to atmospheric river (AR) events, which typically produce heavy precipitation over 1–3 days. However, it is the frequency of the AR events, not their magnitude nor annual precipitation totals, that most affects the radial growth of
Paul A. Knapp +2 more
wiley +1 more source
Political Signaling via Equity Ownership: Impacts on Supplier Financial Performance
ABSTRACT This study offers a new application of signaling theory to better understand the role of equity linkages and political influence on buyer–supplier relationships (BSRs). We examine the signaling effects of a politician's personal equity investment in a buyer firm on the financial performance of the supplier firms located in the politician's ...
Wenming Wang +3 more
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TPSS with general location, date, and listed references. “More info needed”
openaire +1 more source
Nutritional and reproductive dynamics of moose near their southern range limit
Though southern moose (Alces alces) had relatively low seasonal fluctuations in body fat, their condition was positively associated with pregnancy and adult survival but did not influence recruitment of young. We demonstrated clear signs of nutritional limitation and unexpected patterns of reproductive performance that may be unique to moose living at ...
Alexander B. May +5 more
wiley +1 more source
Management of bison in Yellowstone National Park under the available strategies that maintained ≥3,500 individuals (1:1 sex ratio), removed <40% of the population at a time and prioritized relatives for removal were predicted to maintain genetic variation at levels consistent with long‐term conservation (>95% of existing variation).
Shawna J. Zimmerman +2 more
wiley +1 more source

