1,097 research outputs found
Handbook on USSR Military Forces, Chapter IV, Semi-Military Organizations. 15 March 1946
TM 30-340, Handbook on USSR Military Forces, was “published in installments to expedite dissemination to the field.” TM 30-430, Chapter IV, 15 March 1946, “Semi-Military Organizations,” is a brief chapter describing militarized governmental organizations including security services, signal and transportation organizations, youth organizations, and partisans.
This manual is listed in WorldCat under Accession Number: OCLC: 19989681
A Note on Scholarly Usage Since revised editions of Army manuals are customarily issued with the same manual number and title as the previous editions, the minimal scholarly citation must contain the date of issue. The minimum unambiguous citation for this chapter is TM 30-430, Chapter IV, 15 March 1946
A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHC Energies
Standard jet finding techniques used in elementary particle collisions have
not been successful in the high track density of heavy-ion collisions. This
paper describes a modified cone-type jet finding algorithm developed for the
complex environment of heavy-ion collisions. The primary modification to the
algorithm is the evaluation and subtraction of the large background energy,
arising from uncorrelated soft hadrons, in each collision. A detailed analysis
of the background energy and its event-by-event fluctuations has been performed
on simulated data, and a method developed to estimate the background energy
inside the jet cone from the measured energy outside the cone on an
event-by-event basis. The algorithm has been tested using Monte-Carlo
simulations of Pb+Pb collisions at TeV for the ALICE detector at
the LHC. The algorithm can reconstruct jets with a transverse energy of 50 GeV
and above with an energy resolution of .Comment: 13 pages, 7 figure
Carbon dots for multiphoton bioimaging
通讯作者地址: Sun, YP (通讯作者), Clemson Univ, Dept Chem, Clemson, SC 29634 USA
地址:
1. Clemson Univ, Dept Chem, Clemson, SC 29634 USA
2. Clemson Univ, Lab Emerging Mat & Technol, Clemson, SC 29634 USA
电子邮件地址: [email protected] nanoparticles upon simple surface passivation exhibit bright photoluminescence. Reported here is a new finding that these carbon dots are also strongly two-photon luminescent with pulsed laser excitation in the near-infrared. The experimentally measured two-photon absorption cross-sections are comparable to those of the high-performance semiconductor quantum dots already available in the literature. The two-photon luminescence microscopy imaging of human breast cancer cells with internalized carbon dots is demonstrated
Quantum-sized carbon dots for bright and colorful photoluminescence
通讯作者地址: Sun, YP (通讯作者), Clemson Univ, Dept Chem, Clemson, SC 29634 USA
地址:
1. Clemson Univ, Dept Chem, Clemson, SC 29634 USA
2. Clemson Univ, Lab Emerging Mat & Technol, Clemson, SC 29634 USA
电子邮件地址: [email protected]
Resonant Subband Landau Level Coupling in Symmetric Quantum Well
Subband structure and depolarization shifts in an ultra-high mobility
GaAs/Al_{0.24}Ga_{0.76}As quantum well are studied using magneto-infrared
spectroscopy via resonant subband Landau level coupling. Resonant couplings
between the 1st and up to the 4th subbands are identified by well-separated
anti-level-crossing split resonance, while the hy-lying subbands were
identified by the cyclotron resonance linewidth broadening in the literature.
In addition, a forbidden intersubband transition (1st to 3rd) has been
observed. With the precise determination of the subband structure, we find that
the depolarization shift can be well described by the semiclassical slab plasma
model, and the possible origins for the forbidden transition are discussed.Comment: 4 pages, 2 figure
Climate Extremes Promote Fatal Co-Infections during Canine Distemper Epidemics in African Lions
Extreme climatic conditions may alter historic host-pathogen relationships and synchronize the temporal and spatial convergence of multiple infectious agents, triggering epidemics with far greater mortality than those due to single pathogens. Here we present the first data to clearly illustrate how climate extremes can promote a complex interplay between epidemic and endemic pathogens that are normally tolerated in isolation, but with co-infection, result in catastrophic mortality. A 1994 canine distemper virus (CDV) epidemic in Serengeti lions (Panthera leo) coincided with the death of a third of the population, and a second high-mortality CDV epidemic struck the nearby Ngorongoro Crater lion population in 2001. The extent of adult mortalities was unusual for CDV and prompted an investigation into contributing factors. Serological analyses indicated that at least five “silent” CDV epidemics swept through the same two lion populations between 1976 and 2006 without clinical signs or measurable mortality, indicating that CDV was not necessarily fatal. Clinical and pathology findings suggested that hemoparsitism was a major contributing factor during fatal epidemics. Using quantitative real-time PCR, we measured the magnitude of hemoparasite infections in these populations over 22 years and demonstrated significantly higher levels of Babesia during the 1994 and 2001 epidemics. Babesia levels correlated with mortalities and extent of CDV exposure within prides. The common event preceding the two high mortality CDV outbreaks was extreme drought conditions with wide-spread herbivore die-offs, most notably of Cape buffalo (Syncerus caffer). As a consequence of high tick numbers after the resumption of rains and heavy tick infestations of starving buffalo, the lions were infected by unusually high numbers of Babesia, infections that were magnified by the immunosuppressive effects of coincident CDV, leading to unprecedented mortality. Such mass mortality events may become increasingly common if climate extremes disrupt historic stable relationships between co-existing pathogens and their susceptible hosts
- …