Results 31 to 40 of about 165,154 (301)

Accuracy of Intraocular Lens Calculation Formulas [PDF]

open access: yesOphthalmology, 2018
To compare the accuracy of intraocular lens (IOL) calculation formulas (Barrett Universal II, Haigis, Hoffer Q, Holladay 1, Holladay 2, Olsen, and SRK/T) in the prediction of postoperative refraction using a single optical biometry device.Retrospective consecutive case series.A total of 13 301 cataract operations with an AcrySof SN60WF implant and 5200
Ronald B, Melles   +2 more
openaire   +2 more sources

Alternate formula for calculating the Darcy Coefficient in turbulent flow in pipes [PDF]

open access: yes, 2020
The purpose of this research was to determine an alternative formula for calculating the Darcy coefficient in turbulent flow in pipes. The proposed alternate formula is an explicit formula that should be used to replace the Colebrook-White formula for ...
Rodriguez Rodriguez, Ciro   +2 more
core  

Precise recursive formula for calculating spot size in optical waveguides and accurate evaluation of splice loss [PDF]

open access: yes
The spot size of a single-mode waveguide was defined from the viewpoint of a least-squares fit of the field profile to a Gaussian profile. The field profile was expanded in terms of Hermite-Gaussian functions, and a new precise recursive formula for ...
Kokubun, Yasuo   +3 more
core   +3 more sources

Calculating the Greeks by cubature formulae

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2005
We provide cubature formulae for the calculation of derivatives of expected values in the spirit of Terry Lyons and Nicolas Victoir. In financial mathematics derivatives of option prices with respect to initial values, so called Greeks, are of particular importance as hedging parameters.
openaire   +2 more sources

Statistical Divergences between Densities of Truncated Exponential Families with Nested Supports: Duo Bregman and Duo Jensen Divergences

open access: yesEntropy, 2022
By calculating the Kullback–Leibler divergence between two probability measures belonging to different exponential families dominated by the same measure, we obtain a formula that generalizes the ordinary Fenchel–Young divergence.
Frank Nielsen
doaj   +1 more source

Update on Intraocular Lens Formulas and Calculations

open access: yesAsia-Pacific Journal of Ophthalmology, 2020
Investigators, scientists, and physicians continue to develop new methods of intraocular lens (IOL) calculation to improve the refractive accuracy after cataract surgery. To gain more accurate prediction of IOL power, vergence lens formulas have incorporated additional biometric variables, such as anterior chamber depth, lens thickness, white-to-white ...
Xia, Tina   +2 more
openaire   +2 more sources

Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel   +15 more
wiley   +1 more source

One special kind of Kloosterman sum and its fourth-power mean

open access: yesOpen Mathematics
This article aims to investigate the calculation problem of the fourth-power mean of the specific Kloosterman sums by utilizing analytic methods and the properties of classical Gauss sums.
Zhang Wenpeng, Wang Li, Liu Xiaoge
doaj   +1 more source

Phase Angle as an Early Functional Biomarker of Cancer‐Related Fatigue in Pediatric Oncology: A Prospective Longitudinal Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior   +11 more
wiley   +1 more source

The hybrid power mean involving the Kloosterman sums and Dedekind sums

open access: yesOpen Mathematics
Kloosterman sums and Dedekind sums are two important sums in analytic number theory, the study of their various properties is a very interesting subject.
Li Ruiyang, Chen Long
doaj   +1 more source

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