Results 51 to 60 of about 425,737 (311)

Formation of the Reproductive Behavior of Healthcare Students Depending on Their Mothers' Realized Plans [PDF]

open access: yesFolia Medica, 2020
Introduction: A socio-demographic analysis of marriage and family requires conducting deep studies penetrating the essence of the processes among the population.
Daniela Taneva, Angelina Kirkova
doaj   +3 more sources

Finite bias visibility of the electronic Mach-Zehnder interferometer [PDF]

open access: yes, 2007
We present an original statistical method to measure the visibility of interferences in an electronic Mach-Zehnder interferometer in the presence of low frequency fluctuations.
Cavanna, A.   +7 more
core   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

Forecasting future realized variance paths with depth-weighted ridge and conformal diagnostics

open access: yesAIMS Mathematics
We studied the problem of forecasting full future realized–variance (FRV) paths $ y_{t, 1:H} $ over $ H = 30 $ trading days. We proposed a depth–weighted ridge (DW–ridge) estimator that (ⅰ) enforces the natural monotonicity of cumulative variance via a ...
Çağlar Sözen, Fikriye Kabakcı
doaj   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

On the Gains of Using High Frequency Data in Portfolio Selection

open access: yesScientific Annals of Economics and Business, 2018
This paper analyzes empirically the performance gains of using high frequency data in portfolio selection. Assuming Constant Relative Risk Aversion (CRRA) preferences, with different relative risk aversion levels, we compare low and high frequency ...
Brito Rui Pedro   +2 more
doaj   +1 more source

Volatility forecasting when the noise variance Is time-varying [PDF]

open access: yes, 2013
This paper explores the volatility forecasting implications of a model in which the friction in high-frequency prices is related to the true underlying volatility. The contribution of this paper is to propose a framework under which the realized variance
Chaker, Selma, Meddahi, Nour
core   +1 more source

Bias-corrected realized variance under dependent microstructure noise [PDF]

open access: yesMathematics and Computers in Simulation, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

Sample and realized minimum variance portfolios [PDF]

open access: yes, 2021
The global minimum variance portfolio (GMVP) is the starting point of the Markowitz mean-variance efficient frontier. The estimation of the GMVP weights is therefore of much importance for financial investors. The GMVP weights depend only on the inverse covariance matrix of returns on financial risky assets, for this reason the estimated GMVP weights ...
Golosnoy, Vasyl (Prof. Dr.)   +2 more
openaire  

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