Results 31 to 40 of about 247,347 (299)

Polynomials Involving the Floor Function.

open access: yesMATHEMATICA SCANDINAVICA, 1995
Some identities are presented that generalize the formula x^3 = 3x floor(x floor(x)) - 3 floor(x) floor(x floor(x)) + floor(x)^3 + 3 frac(x) frac(x floor(x)) + frac(x)^3 to a representation of the product x_0x_1 ... x_{n-1}.
Haland, Inger J., Knuth, Donald E.
openaire   +3 more sources

On some floor function sets

open access: yes, 2023
Let $X$ be a positive integer and $t$ a real number great than 1. The family of sets $\left\{\big\lfloor\frac{X}{n^t}\big\rfloor ~:~ 1\leq n\leq X\right\}$ have an interesting prime distribution property. We give an exact formula for the cardinality of these sets.
Heyman, Randell, Miraj, MD Rahil
openaire   +2 more sources

Learning with the Amerindians: the evaluation of pelvic floor disorders among indigenous women who live in the Xingu Indian Park,Brazil [PDF]

open access: yes, 2008
Objective: to evaluate the pelvic floor muscles and the incidence of pelvic organ prolapse among indigenous women who live in Xingu Indian Park, Mato Grosso, Brazil. Methods: observational study with 377 indigenous women, mean age 31+/-15 years,
Marair Gracio Ferreira Sartori   +3 more
core   +2 more sources

Floor and ceiling functions for Pell numbers [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
The analytical study of the Pell number and the role of floor and ceiling functions into their computation is examined. Closed expressions of Pell numbers were initially derived using Binet's formula, followed by an asymptotic behavior study of the ...
İsmail Sulan, Mustafa Aşçı
doaj   +1 more source

On the Partial Finite Alternating Sums of Reciprocals of Balancing and Lucas-Balancing Numbers

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2020
In this note, the finite alternating sums of reciprocals of balancing and Lucas-balancing numbers are considered and several identities involving these sums are deduced.
Dutta Utkal Keshari, Ray Prasanta Kumar
doaj   +1 more source

Sexual function, delivery mode history, pelvic floor muscle exercises and incontinence : a cross-sectional study six years postpartum [PDF]

open access: yes, 2008
Background: There is controversy over the effect of mode of delivery, pelvic floor muscle exercises (PFME), incontinence and sexual function. Aim: To investigate the relationship of sexual function with delivery mode history, PFMEs and incontinence ...
MacArthur, Christine   +10 more
core   +1 more source

Australian pelvic floor questionnaire: a validated interviewer-administered pelvic floor questionnaire for routine clinic and research [PDF]

open access: yes, 2009
The aim of this study was to design and validate an interviewer-administered pelvic floor questionnaire that integrates bladder, bowel and sexual function, pelvic organ prolapse, severity, bothersomeness and condition-specific quality of life. Validation
Baessler, Kaven   +7 more
core   +1 more source

Concurrent micro- to macro-cardiac electrophysiology in myocyte cultures and human heart slices

open access: yesScientific Reports, 2018
The contact cardiac electrogram is derived from the extracellular manifestation of cellular action potentials and cell-to-cell communication. It is used to guide catheter based clinical procedures.
Rasheda A. Chowdhury   +9 more
doaj   +1 more source

Function and dysfunction of the pelvic floor [PDF]

open access: yes, 2015
Withagen MIJ. Function and dysfunction of the pelvic floor. Huisarts Wet 2015;58(11):600-3. Pelvic floor disorders are common. The muscles and ligaments of the pelvic floor support the pelvic organs and span the bottom of the pelvis.
Withagen, Mariëlla
core   +1 more source

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