Zobrazeno 1 - 10 of 48 pro vyhledávání: '"S F Hassan"'
1
Akademický článek
Analysis of constraints and their algebra in bimetric theory
Autor: S. F. Hassan, Anders Lundkvist
Publikováno v: Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-42 (2018)
Abstract We perform a canonical analysis of the bimetric theory in the metric formulation, computing the constraints and their algebra explicitly. In particular, we compute a secondary constraint, that has been argued to exist earlier, and show that
Externí odkaz: https://doaj.org/article/cf929c0b153748e79fcb6f0f3d4bec3a
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2
Akademický článek
On the local structure of spacetime in ghost-free bimetric theory and massive gravity
Autor: S. F. Hassan, Mikica Kocic
Publikováno v: Journal of High Energy Physics, Vol 2018, Iss 5, Pp 1-35 (2018)
Abstract The ghost-free bimetric theory describes interactions of gravity with another spin-2 field in terms of two Lorentzian metrics. However, if the two metrics do not admit compatible notions of space and time, the formulation of the initial valu
Externí odkaz: https://doaj.org/article/a1673bb7054a4fa187c73d1c04b61e5b
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4
Is Survival with Conservative Breast Therapy Becoming Superior to That with Modified Radical Mastectomy Alone for the Treatment of Early Breast Cancer in This Era?
Autor: Salah M. Khallaf, Maha S. El-Naggar, Mona M. Sayed, Mayada Fawzy Sedik, Dalia O. Mohamed, Lamia M. Khallaf, Mahmoud H. Elshoieby, Marwa S. F. Hassan
Publikováno v: Indian Journal of Surgical Oncology. 14:243-248
This study aims to assess survival rates in early breast cancer patients treated by conservative breast therapy (CBT), including radiotherapy, compared with those treated by modified radical mastectomy (MRM) alone. The South Egypt Cancer Institute an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2bdc321514601b308f3b45a42d5f577b
https://doi.org/10.1007/s13193-020-01188-2
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5
Construction of Confidence Interval of the Parameter in Von Mises Distribution using Bootstrap Methods
Autor: Yong Zulina Zubairi, Abdul Ghapor Hussin, Nor Hafizah Moslim, Nurkhairany Amyra Mokhtar, S. F. Hassan
Publikováno v: ASM Science Journal. :1-7
Bootstrap method is a computer-based technique for making certain kind of statistical inferences which can simplify the often intricate calculations of traditional statistical theory. Recently, bootstrapping has been widely used for the parameter est
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95a3f51247c9fbd034fe4d183cf3125e
https://doi.org/10.32802/asmscj.2020.sm26(1.6)
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7
A Comparison of Asymptotic and Bootstrapping Approach in Constructing Confidence Interval of the Concentration Parameter in von Mises Distribution
Autor: Abdul Ghapor Hussin, Yong Zulina Zubairi, Nurkhairany Amyra Mokhtar, Nor Hafizah Moslim, S. F. Hassan
Publikováno v: Sains Malaysiana. 48:1151-1156
Bootstrap is a resampling procedure for estimating the distributions of statistics based on independent observations. Basically, bootstrapping has been established for the use of parameter estimation of linear data. Thus, the used of bootstrap in con
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4af9132cd0d77e858f3eb3353624581b
https://doi.org/10.17576/jsm-2019-4805-24
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8
On the local structure of spacetime in ghost-free bimetric theory and massive gravity
Autor: Mikica Kocic, S. F. Hassan
Publikováno v: Journal of High Energy Physics, Vol 2018, Iss 5, Pp 1-35 (2018)
Journal of High Energy Physics
The ghost-free bimetric theory describes interactions of gravity with another spin-2 field in terms of two Lorentzian metrics. However, if the two metrics do not admit compatible notions of space and time, the formulation of the initial value problem
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac0cb4cc94ba1f0e61c4bea8e85de1c5
http://link.springer.com/article/10.1007/JHEP05(2018)099
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9
On the approximation of the concentration parameter for von Mises distribution
Autor: Nor Hafizah Moslim, Yong Zulina Zubairi, Rossita M. Yunus, S. F. Hassan, Abdul Ghapor Hussin
Publikováno v: Malaysian Journal of Fundamental and Applied Sciences. 13:390-393
The von Mises distribution is the ‘natural’ analogue on the circle of the Normal distribution on the real line and is widely used to describe circular variables. The distribution has two parameters, namely mean direction, and concentration parame
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::909cd39372fcfbf220bd3493624d682e
https://doi.org/10.11113/mjfas.v13n4-1.807
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10
Failure Analysis of Gearbox and Clutch Shaft from a Marine Engine
Autor: S. F. Hassan, M. R. Alam
Two shafts that transmit power from the engine to the propeller of a container ship failed after a short time in service. The shafts usually have a 25 year lifetime, but the two in question failed after only a few years. One of the shafts, which carr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8c93e4c82b45a2ea9eabb62acb495f2
https://doi.org/10.31399/asm.fach.v03.c9001792
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