Results 51 to 60 of about 6,296 (170)

Continuous-time Mean-Variance Portfolio Selection with Stochastic Parameters [PDF]

open access: yes, 2013
This paper studies a continuous-time market {under stochastic environment} where an agent, having specified an investment horizon and a target terminal mean return, seeks to minimize the variance of the return with multiple stocks and a bond.
Li, Xun   +3 more
core  

Dentoskeletal changes of long‐term oral appliance treatment in patients with obstructive sleep apnea: A systematic review and meta‐analysis

open access: yesJournal of Prosthodontics, Volume 34, Issue S1, Page 62-79, April 2025.
Abstract Purpose This systematic review and meta‐analysis aimed to evaluate the dental and skeletal effects of the long‐term oral appliance (OA) treatment in patients with obstructive sleep apnea (OSA) and provide insights for clinicians in treatment planning and decision‐making for OSA patients undergoing OA treatment.
Yanlong Chen   +2 more
wiley   +1 more source

Ножче със сребърен обков от Плиска

open access: yesБългарско е-Списание за Археология, 2017
This report presents a luxury knife with silver. It was found in 2014 during the archaeological campaign in ‘Palace centre – east’ in the inner town of Pliska. The casing has been decorated with various motifs. A major component of this decoration is the
Valeri Grigorov
doaj  

Martingales and arbitrage: a new look [PDF]

open access: yes, 2003
This paper addresses the equivalence between the absence of arbitrage and the existence of equivalent martingale measures. The equivalence will be established under quite weak assumptions since there are no conditions on the set of trading dates (it may ...
Balbás, Alejandro
core   +1 more source

New Data about Pottery Production in the 9th–10th centuries in Pliska (Capital of the First Bulgarian Kingdom)

open access: yesБългарско е-Списание за Археология, 2013
In the first part of this report, we will present two large ceramic complexes – one from the beginning of the ninth century and the second from the mid-ninth century.
Valeri Grigorov, Yanko Dimitrov
doaj  

Craniofacial features of adult obese obstructive sleep apnoea patients in relation to the obesity onset – A pilot study

open access: yesOrthodontics &Craniofacial Research, Volume 27, Issue 3, Page 364-375, June 2024.
Abstract Introduction Obesity and craniofacial structures are aetiologies of obstructive sleep apnoea (OSA). The effect of obesity onset on the craniofacial development and growth of obese OSA subjects has been suggested, but supporting data were lacking.
Samah Alfuriji   +5 more
wiley   +1 more source

Riemann-Hilbert Problems with canonical normalization and families of commuting operators [PDF]

open access: yes, 2012
We start with a Riemann-Hilbert Problems (RHP) with canonical normalization whose sewing functions depends on several additional variables. Using Zakharov-Shabat theorem we are able to construct a family of ordinary differential operators for which the ...
Gerdjikov, Vladimir S.
core   +1 more source

Roles of Social Networking in Complex Multi-agency Implementation Efforts

open access: yesSAGE Open, 2022
Some state health departments in the United States are in the process of increasing access to immediate postpartum long-acting reversible contraception (LARC), an evidence based approach to preventing unintended pregnancy.
Cameron Estrich   +7 more
doaj   +1 more source

The Seals of Theodorocanos, patrikio and katepano of Edessa (middle of the 11th c.)

open access: yesАнтичная древность и средние века, 2019
There are two specimens, strike by one bulotirion. The first specimen is keeping in the Ashmoleon Museum in Oxford. It`s origin is probably from Gaziantep, Turkey. The other one is found during the archaeological excavations in Pliska.
Ivan Jordanov
doaj  

Comparative Characteristics of Surgical Treatment and Balloon Aortic Valvuloplasty in Infants with Critical Aortic Stenosis

open access: yesУкраїнський журнал серцево-судинної хірургії, 2019
Critical aortic stenosis (AS) in infants is a complex pathology requiring emergency care. Treatment for such patients is a challenging problem. The methods of treatment include balloon valvuloplasty and open surgical valvuloplasty.
E. Imanov   +4 more
doaj   +1 more source

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