Results 41 to 50 of about 2,583,298 (291)
POSITION VECTORS OF A PARIALLY NULL AND PSEUDO NULL W-CURVES IN MINKOWSKI SPACE-TIME [PDF]
Assiut University Journal of Multidisciplinary Scientific Research, 2018 In this paper, we introduced a position vector of a space-like curve with space-like principal normal vector and null first binormal vector. Also, we introduced a position vector of a space-like curve with space-like first binormal vector and null ...
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A New Angular Measurement in Minkowski 3-Space
Mathematics, 2020 In Lorentz−Minkowski space, the angles between any two non-null vectors have been defined in the sense of the angles in Euclidean space. In this work, the angles relating to lightlike vectors are characterized by the Frenet frame of a pseudo null ...
Jinhua Qian +3 more
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On involutes of order k of a null cartan curve in minkowski spaces
, 2019 © 2019, University of Nis. All rights reserved. In this paper, we define an involute and an evolving involute of order k of a null Cartan curve in Minkowski space En for n ≥ 3 and 1 ≤ k ≤ n − 1.
Hanif M., Hou Z., Nešović, Emilija
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Moving Null Curves and Integrability
Mathematical Methods in the Applied SciencesABSTRACT We study the null curves and their motion in 3‐dimensional flat space‐time . We show that when the motion of null curves forms two surfaces in , the integrability conditions lead to the well‐known Ablowitz–Kaup–Newell–Segur (AKNS) hierarchy.
Metin Gürses, Aslı Pekcan
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Schild’s null strings in flat and curved backgrounds [PDF]
Physical Review D, 1996 Schild's null (tensionless) strings are discussed in certain flat and curved backgrounds. We find closed, stationary, null strings as natural configurations existing on the horizons of spacetimes which possess such null hypersurfaces. Examples of these are obtained in Schwarzschild and Rindler spacetimes.
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Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining
Molecular Oncology, EarlyView.IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis +3 more
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Spacelike Ac-Slant Curves with Non-Null Principal Normal in Minkowski 3-Space
Journal of New Theory, 2023 In this paper, we define a spacelike ac-slant curve whose scalar product of its acceleration vector and a unit non-null fixed direction is a constant in Minkowski 3-space.
Hasan Altınbaş
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A local structure of null hypersurfaces of $\mathbb{R}_{1}^{n+1}$ [PDF]
, 2019 In the present paper, we characterize constant mean curvature and scalar curvature null hypersurfaces of $\mathbb{R}_{1}^{n+1}$.
Ssekajja, Samuel
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Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization
Molecular Oncology, EarlyView.In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu +13 more
wiley +1 more source
Molecular Oncology, EarlyView.Circulating microRNAs as biomarkers of cachexia and sex‐specific cancer in senior dogs. In 25 client‐owned dogs, four circulating miRNAs (miR‐15a, miR‐15b, miR‐16, miR‐140) were downregulated in cachexia, with miR‐16 the strongest individual biomarker (AUC = 0.899).
Soon‐Seok Park +6 more
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