Results 31 to 40 of about 32,673 (194)

Bosonization of World-Sheet Fermions in Minkowski Space-Time [PDF]

open access: yes, 1995
We propose a way of bosonizing free world-sheet fermions for $4$-dimensional heterotic string theory formulated in Minkowski space-time. We discuss the differences as compared to the standard bosonization performed in Euclidean space-time.Comment: 1+9 ...
Andrea Pasquinucci   +8 more
core   +2 more sources

Is the Labour Force Participation Rate Non-Stationary in Romania?

open access: yesReview of Economic Perspectives, 2015
The purpose of this paper is to test hysteresis of the Romanian labour force participation rate, by using time series data, with quarterly frequency, covering the period 1999Q1-2013Q4.
Tiwari Aviral Kumar, Mutascu Mihai
doaj   +1 more source

Market microstructure, bank's behaviour and interbank spreads [PDF]

open access: yes, 2012
We present an empirical analysis of the European electronic interbank market of overnight lending (e-MID) during the years 1999–2009. The main goal of the paper is to explain the observed changes of the cross-sectional dispersion of lending/borrowing ...
Gabbi, G.   +4 more
core  

Exposure to Systemic Antimicrobials During Pregnancy and Risk of Miscarriage: A Population‐Based Registry Study

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Objective To estimate miscarriage risk following gestational antimicrobial exposure while addressing biases that have affected previous studies. Design Population‐based cohort study. Setting Linkage of four nationwide registries: Medical Birth Registry of Norway (MBRN), Norwegian Prescribed Drug Registry (NorPD), Norwegian Patient Registry ...
Thomas Boissiere‐O'Neill   +3 more
wiley   +1 more source

An Archaeometallurgical Investigation on Some Archaeological Metal Finds From the Sasanian Site of Jahāngir, Western Iran

open access: yesArchaeometry, EarlyView.
ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi   +2 more
wiley   +1 more source

On the uniqueness of paths for spin-0 and spin-1 quantum mechanics

open access: yes, 2003
The uniqueness of the Bohmian particle interpretation of the Kemmer equation, which describes massive spin-0 and spin-1 particles, is discussed. Recently the same problem for spin-1/2 was dealt with by Holland.
Bohm   +23 more
core   +1 more source

Euler-Heisenberg lagrangian through Krein regularization [PDF]

open access: yes, 2013
The Euler-Heisenberg effective action at the one-loop for a constant electromagnetic field is derived in Krein space quantization with Ford's idea of uctuated light-cone.
Refaei, A.
core   +1 more source

Changes in the Dispensing of Antibiotics to Australian Children Between 2013 and 2023: Are We Heading in the Right Direction?

open access: yesPaediatric and Perinatal Epidemiology, EarlyView.
ABSTRACT Background Antimicrobial resistance (AMR) poses a critical public health issue, exacerbated by the overuse and misuse of antibiotics. Children are particularly susceptible to bacterial infections and are frequently prescribed antibiotics. Objective This study examined trends in antibiotic dispensing to children aged under 13 years in Australia
Erin Kelty   +8 more
wiley   +1 more source

Rayleigh Equation Anomaloscope from Commercially Available LEDs

open access: yesMedžiagotyra, 2012
Most precise classification of CVD (color vision deficits) can be provided by using anomaloscope. Today anomaloscopes are available, which can evaluate red-green (Rayleigh) and blue-green (Moreland) color defects.DOI: http://dx.doi.org/10.5755/j01.ms.18 ...
Renārs TRUKŠA   +2 more
doaj   +1 more source

Joint Effects of Prenatal Antibiotics, Mode of Birth and Breastfeeding Duration on Childhood Infections: The Norwegian MoBa Cohort Study

open access: yesPaediatric and Perinatal Epidemiology, EarlyView.
ABSTRACT Background Prenatal antibiotic exposure and caesarean births are associated with an increased risk of hospitalised infection in children, but few studies have evaluated their impact on less severe infections and possible joint effects. Conversely, longer breastfeeding duration is protective against infections, but whether this effect varies ...
Isobel M. F. Todd   +4 more
wiley   +1 more source

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