Results 31 to 40 of about 6,076,628 (278)

A noninvasive method for preoperative localization of breast microcalcifications

open access: yesFormosan Journal of Surgery, 2018
Wire localization of breast microcalcifications before surgical biopsy has been used for a long time. However, it causes patient's psychical trauma before operation with more cost of money and time as well.
Wei-Hsin Chen, Dah-Cherng Yeh
doaj   +1 more source

Convenience yield and inventory accessibility: Impact of regional market conditions [PDF]

open access: yes, 2015
The theory of storage predicts that convenience yield and inventory level of the same commodity are in an inverse relationship. Conceptually, inventories which are readily accessible by market participants at a given location drive the perceived benefits
A. Omura, N. Todorova, Bin Li, R. Chung
semanticscholar   +2 more sources

Contagion and Default Risks in Derivative Pricing: A Hawkes-Based Model

open access: yesRisks
Modern financial systems do not exist in isolation but form part of a complex global network of interconnected financial systems. This globalization of financial systems significantly increases the risk of contagion in financial markets, impacting asset ...
Francis Agana, Eben Maré
doaj   +1 more source

The convenience yield under commodity financialization

open access: yesJournal of futures markets
A number of papers have dealt with commodity financialization finding strong evidence for its existence and its effect on commodity prices and volatility.
Nikolaos T. Milonas   +1 more
semanticscholar   +1 more source

The Convenience Yield Determinants of Corn Futures [PDF]

open access: yes, 2021
This paper presents an in-depth analysis of the convenience yield determinants of corn futures. The estimated spot price and convenience yield are derived from Gibson and Schwartz’s (1990) two-factor model, and a deterministic seasonal component is added
DeLong, Christopher R.
core  

Dynamic speculation and hedging in commodity futures markets with a stochastic convenience yield

open access: yesEuropean Journal of Operational Research, 2016
The main objective of this paper is to address, in an a continuous-time framework, the issue of using storable commodity futures as vehicles for hedging purposes when, in particular, the convenience yield as well as the market prices of risk evolve ...
Constantin Mellios, Pierre Six, A. Lai
semanticscholar   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

open access: yesFEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee   +3 more
wiley   +1 more source

Assessment of technical-productive aspects in Italian dairy farms equipped with automatic milking systems: A multivariate statistical analysis approach

open access: yesJournal of Dairy Science, 2022
: The aim of this study was to assess technical-productive aspects of dairy farms equipped with automatic milking system (AMS) in Northern and Central Italy.
F.M. Tangorra   +4 more
doaj   +1 more source

Tariff War Shock and the Convenience Yield of US Treasuries — A Hedging Perspective

open access: yesSocial Science Research Network
. This note explains how the “tariff war” shock of early April 2025 affected the convenience yield of US Treasuries. Its erosion at the long end is consistent with a reduction in the safe-asset hedging property of long bonds, reflected in a rising stock ...
V. Acharya, Toomas Laarits
semanticscholar   +1 more source

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