Results 41 to 50 of about 2,205,764 (331)

Disarmament and Military Cooperation as Vectors of National Security Ensuring

Управленческое консультирование, 2018
The article investigates a study of disarmament as a principle of contemporary international law. An analysis of the international legal doctrine and existing international and domestic acts of states leads the author to the conclusion that in modern ...
Ekaterina Sergeevna Andreeva
doaj   +1 more source

Star formation rates and the kinematics of gas in the spiral arms of NGC 628

, 2015
Relations between star formation rates along the spiral arms and the velocities of gas inflow into the arms in grand-design galaxy NGC 628 were studied.
Efremov, Yury N., Gusev, Alexander S., Sakhibov, Firouz   +2 more
core   +1 more source

Complexification of Gauge Theories [PDF]

, 1993
For the case of a first-class constrained system with an equivariant momentum map, we study the conditions under which the double process of reducing to the constraint surface and dividing out by the group of gauge transformations $G$ is equivalent to ...
Abraham, Arms, Arms, Arms, Arms, Ashtekar, Ashtekar, Ashtekar, Emmrich, Gambini, Giles, Goldberg, Gotay, Guillemin, Hitchin, Hochschild, J.M. Mourão, J.N. Tavares, Kirwan, Loll, Marsden, Moncrief, Moncrief, Montgomery, Ness, Prokhorov, Prokhorov, R. Loll, Rovelli, Sjamaar, Witten, Witten   +31 more
core   +3 more sources

Enhanced Red-billed Blue Magpie Optimizer for engineering optimization problems

Scientific Reports
The design of efficient and robust metaheuristic algorithms remains a fundamental challenge in addressing complex optimization problems, particularly those involving high dimensionality, nonlinearity, and multimodal landscapes where traditional methods ...
Haobo Wang, Zhentao Xin, Xuekui Qi, Qiang Zhou, Jiantao Liu, Zhe Li   +5 more
doaj   +1 more source

CMSNet: A SAM-Enhanced CNN–Mamba Framework for Damaged Building Change Detection in Remote Sensing Imagery

Remote Sensing
In war and explosion scenarios, buildings often suffer varying degrees of damage characterized by complex, irregular, and fragmented spatial patterns, posing significant challenges for remote sensing–based change detection.
Jianli Zhang, Liwei Tao, Wenbo Wei, Pengfei Ma, Mengdi Shi   +4 more
doaj   +1 more source

Clues to the formation of spiral structure in M51 from the ages and locations of star clusters [PDF]

, 2017
We determine the spatial distributions of star clusters at different ages in the grand-design spiral galaxy M51 using a new catalog based on multi-band images taken with the Hubble Space Telescope (HST). These distributions, when compared with the spiral
Calzetti, Daniela, Chandar, Rupali, Chien, L-H, Dinino, Daiana, Dobbs, Clare, Kennicutt, Robert C, Querejeta, Miguel, Regan, Michael, Schinnerer, Eva, van der Wel, Sharon Meidt, Whitmore, Bradley C   +10 more
core   +1 more source

Arms production, national defense spending and arms trade: Examining supply and demand

European Journal of Political Economy, 2019
Scholars have estimated demand functions for national defense spending and investigated international arms trade for a long time. The relationship between supply and demand for military goods has, however, only been examined on aggregate level or in ...
Johannes Blum
semanticscholar   +1 more source

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

Sirolimus for Extracranial Arteriovenous Malformations: A Scoping Review of the Evidence in Syndromic and Non‐Syndromic Cases

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Arteriovenous malformations (AVMs) are rare, high‐flow, vascular anomalies that can occur either sporadically or as part of a genetic syndrome. AVMs can progress with serious morbidity and even mortality if left unchecked. Sirolimus is an mTOR inhibitor that is effective in low‐flow vascular malformations; however, its role in AVMs is unclear.
Will Swansson, Ingrid Winship, Gary Hammerschlag, Laura Scardamaglia   +3 more
wiley   +1 more source

The relation between magnetic and material arms in models for spiral galaxies

, 2013
Context. Observations of polarized radio emission show that large-scale (regular) magnetic fields in spiral galaxies are not axisymmetric, but generally stronger in interarm regions.
Arshakian, T. G., Beck, R., Krause, M., Moss, D., Sokoloff, D., Stepanov, R.   +5 more
core   +1 more source