نتایج جستجو برای: latrodectus

تعداد نتایج: 537  

2014
Charles C. Y. Xu Ivy J. Yen Dean Bowman Cameron R. Turner

15 Noninvasive genetic approaches enable biomonitoring without the need to directly observe or 16 disturb target organisms. Environmental DNA (eDNA) methods have recently extended this 17 approach by assaying genetic material within bulk environmental samples without a priori 18 knowledge about the presence of target biological material. This paper describes a novel and 19 promising source of n...

Journal: :Waste management 2011
Qing Li Longyu Zheng Ning Qiu Hao Cai Jeffery K Tomberlin Ziniu Yu

Modern dairies cause the accumulation of considerable quantity of dairy manure which is a potential hazard to the environment. Dairy manure can also act as a principal larval resource for many insects such as the black soldier fly, Hermetia illucens. The black soldier fly larvae (BSFL) are considered as a new biotechnology to convert dairy manure into biodiesel and sugar. BSFL are a common colo...

2008
Jan Troost

We start a systematic study of string theory in AdS3 black hole backgrounds. Firstly, we analyse in detail the geodesic structure of the BTZ black hole, including spacelike geodesics. Secondly, we study the spectrum for massive and massless scalar fields, paying particular attention to the connection between Sl(2, R) subgroups, the theory of special functions and global properties of the BTZ bl...

1997
V. M. Lipunov

The Invited Review on Joint Discussion ”High Energy Transients” on XXIIIrd General Assembly of IAU, Kioto, 1997 is presented. The simulated rates of neutron star + neutron star, neutron star + black hole and black hole + black hole mergings are considered in relation with the problem of GRBursts origin and gravitational waves detection.

2005
Kumar S. Gupta Siddhartha Sen

The BTZ black hole is geometrically finite. This means that its three dimensional hyperbolic structure as encoded in its metric is in 1-1 correspondence with the Teichmuller space of its boundary which is a two torus. The equivalence of different Teichmuller parameters related by the action of the modular group therefore requires the invariance of the monodromies of the solutions of the wave eq...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2002
Carole G Mundell

Violent activity in the nuclei of galaxies has long been considered a curiosity in its own right; manifestations of this phenomenon include distant quasars in the early Universe and comparatively nearby Seyfert galaxies, both thought to be powered by the release of gravitational potential energy as material from the host galaxy accretes onto a central supermassive black hole (SMBH). Traditional...

2008
Hari K. Kunduri

Recent work has demonstrated an attractor mechanism for extremal rotating black holes subject to the assumption of a near-horizon SO(2, 1) symmetry. We prove the existence of this symmetry for any extremal black hole with the same number of rotational symmetries as known four and five dimensional solutions (including black rings). The result is valid for a general two-derivative theory of gravi...

2009
Gérard Clément

We investigate solutions of new massive gravity with two commuting Killing vectors, one of which is null, with a special emphasis on black hole solutions. Besides extreme BTZ black holes and, for a special value of the coupling constant, massless null warped black holes, we also obtain for a critical coupling a family of massive “log” black holes. These are asymptotic to the extreme BTZ black h...

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