Results 31 to 40 of about 485,317 (263)
{We establish that a pair of matrices, whichdeterminants are primes powers, can be reduced over quadraticEuclidean ring $mathbb{K}=mathbb{Z}[sqrt{k}]$ to theirtriangular forms with invariant factors on a main diagonal byusing the common transformation ...
N. B. Ladzoryshyn
doaj +3 more sources
A wear-ring is an important part of the centrifugal pump. The leakage flow in the wear-ring clearance and main flow at the impeller inlet form crossed mixed flows perpendicular to each other.
XiaoQi Jia +4 more
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ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier +10 more
wiley +1 more source
Some Results on AWN-injective Rings
A concept of AWN-injective ring is defined by [1], that is, for any there exists and an Y-sub module of ( is aright -module) such that and as left S-module with S=End(u ). If is AWN-injective module, then we call aright AWN-injective ring.
Hazim Talat Hazim +2 more
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Effects of molecule force on free vibration for a micro electromagnetic harmonic drive system
In this paper, a micro electromagnetic harmonic drive system is proposed. Considering Van der Waals force, dynamics equation of the flexible ring for the micro drive system is deduced and resolved.
Zhao Dan, Xu Lizhong, Fu Yuming
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ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar +7 more
wiley +1 more source
Semicommutative and Armendariz Matrix Rings
In this paper, we construct some interesting high-order upper triangular matrix rings, which have semicommutative and Armendariz properties. Also, the relatively maximality of these rings as subrings of certain matrix rings is considered.
Gang Yang
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Long-Term Impacts of Defoliator Outbreaks on Larch Xylem Structure and Tree-Ring Biomass
Defoliator insects are a major disturbance agent in many forests worldwide. During outbreaks, they can strongly reduce photosynthetic carbon uptake and impact tree growth.
Daniele Castagneri +6 more
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ABSTRACT Background Leukemia is the most common childhood cancer in Mexico, and acute lymphoblastic leukemia (ALL) is the most frequent subtype. Exposure to high concentrations of benzene has been associated with ALL incidence, particularly in urban areas. This study evaluated the relationship between distance to benzene emission sources and the number
Orlando Rivera Zurita +5 more
wiley +1 more source
ON NIL-SYMMETRIC RINGS AND MODULES SKEWED BY RING ENDOMORPHISM
The symmetric property plays an important role in non-commutative ring theory and module theory. In this paper, we study the symmetric property with one element of the ring and two nilpotent elements of skewed by ring endomorphism on rings ...
Ibrahim Mustafa, Chnar Abdulkareem Ahmed
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