Results 21 to 30 of about 39,781 (235)

On a New Type Mannheim Curve

open access: yes, 2021
In this paper, we deÖne a new type curve as V-Mannheim curve, V Mannheim partner curve and generating curve of Mannheim curve. We give characterization of these curve. In addition, we study a relation between Mannheim curve and spherical curve. Eventually, with Salkowski method, we give an example of the Mannheim curve.
openaire   +2 more sources

Surgical treatment of patients with abdominal sepsis taking into account the prediction of the implementation of re-operations

open access: yesКлінічна хірургія, 2020
Objective. The investigation objective was improvement of the surgical treatment results in patients, suffering аbdominal sepsis, using individualized tactics of treatment, taking into account a possibility for the postoperative complications occurrence ...
I. A. Kryvoruchko   +3 more
doaj   +1 more source

A New Approach to Mannheim Curve in Euclidean 3-Space

open access: yesTamkang Journal of Mathematics, 2021
In this article, a new approach is given for Mannheim curves in 3-dimensional Euclidean space. Thanks to this approach, the necessary and sufficient conditions including the known results have been obtained for a curve to be Mannheim curve in E³.
Uçum, Ali   +2 more
openaire   +4 more sources

Smarandache Curves of Mannheim Curve Couple According to Frenet Frame

open access: yesMathematical Sciences and Applications E-Notes, 2017
p>In this paper, when the unit Darboux vector of the partner curve of Mannheimnbsp;curve are taken as the position vectors, the curvature and the torsion of Smarandache curvenbsp;are calculated. These values are expressed depending upon the Mannheim curve. Besides,nbsp;we illustrate example of our main results./p>
ŞENYURT, Süleyman   +1 more
openaire   +4 more sources

Bertrand and Mannheim curves of framed curves in the3-dimensional Euclidean space

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shun’ichi HONDA, Masatomo TAKAHASHI
openaire   +2 more sources

On generalized null Mannheim curves in E24

open access: yesMathematical Methods in the Applied Sciences, 2020
In the present paper, we introduce the notion of Cartan‐framed generalized null Mannheim curves in four‐dimensional semi‐Euclidean space with index 2, . We obtain the Cartan (or Frenet) frames and curvature functions of the generalized Mannheim mate curve by the help of curvature functions and Cartan frames of the generalized null Mannheim curve.
Kazim İlarslan, Nihal Kılıç Aslan
openaire   +1 more source

Serum cystatin C as a biomarker in non-Hodgkin lymphoma and its relationship with paraoxonase 1 activity [PDF]

open access: yesJournal of Medical Biochemistry
Background: This pilot study aimed to assess the potential of cystatin C (Cys C) as a biomarker in non-Hodgkin lymphoma (NHL) and to explore its association with paraoxonase 1 (PON1) activity.
Mirjanić-Azarić Bosa   +8 more
doaj   +1 more source

Association of eNOS (E298D) and CYP2J2 (−50 G/T) gene polymorphisms with hypertension among Egyptian cases

open access: yesJournal of Basic and Applied Zoology, 2013
Background: Hypertension is a multifactorial and polygenic disorder where several susceptible genes interact with the environmental factors. Objective: This study was designed to investigate the frequency of the endothelial nitric oxide synthase (eNOS ...
Ahmed A.A. Ali   +3 more
doaj   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Mannheim B-curve couples in Minkowski 3-space

open access: yesTamkang Journal of Mathematics, 2020
In this paper, we define null Cartan and pseudo null Mannheim curves in Minkowski 3-space according to their Bishop frames. We obtain the necessary and the sufficient conditions for pseudo null curves to be Mannheim B-curves in terms of their Bishop curvatures.
Ilarslan, Kazim   +3 more
openaire   +2 more sources

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