72 research outputs found
The helium trimer with soft-core potentials
The helium trimer is studied using two- and three-body soft-core potentials.
Realistic helium-helium potentials present an extremely strong short-range
repulsion and support a single, very shallow, bound state. The description of
systems with more than two helium atoms is difficult due to the very large
cancellation between kinetic and potential energy. We analyze the possibility
of describing the three helium system in the ultracold regime using a gaussian
representation of a widely used realistic potential, the LM2M2 interaction.
However, in order to describe correctly the trimer ground state a three-body
force has to be added to the gaussian interaction. With this potential model
the two bound states of the trimer and the low energy scattering helium-dimer
phase shifts obtained with the LM2M2 potential are well reproduced.Comment: 15 pages, 3 figures, submitted to Few-Body System
İran Şahı'ndan utansınlar!
Taha Toros Arşivi, Dosya Adı: Nazım Hikmetİstanbul Kalkınma Ajansı (TR10/14/YEN/0033) İstanbul Development Agency (TR10/14/YEN/0033
Dream or Reality: Complete Basis Set Full Configuration Interaction Potential Energy Hypersurfaces
DEVELOPMENT OF THE ELISA KIT FOR THE DETECTION OF HYPODERMA BOVIS ANTIBODIES IN CATTLE. II. SETTING THE BEST TERMS FOR COLLECTING BLOOD SAMPLES FOR THE LABORATORY DIAGNOSIS OF HYPODERMOSIS IN DIFFERENT REGIONS OF POLAND
The experiments were carried out on 285 cows from 10 herds from different regions of Poland. Extensity of the H. bovis invasion in each herd varied from 10 to 86%. The highest extensity appeared in herds from eastern and north-eastern Poland and the lowest in herds from southern and central regions of the country. Seroconversion of Hypoderma bovis antibodies was calculated for animals in which warbles were detected by clinical examination. The highest serum densities were observed in herds in March, April and May. The results of these investigations demonstrated that the best term for collecting blood samples to examine cattle for hypodermosis is the winter-spring season
Opracowanie zestawu diagnostycznego do wykrywania przeciwcial anty-Hypoderma bovis u bydla testem ELISA. 1.Uzyskanie komponentow
The aim of these investigations was to prepare the antigen and control sera for the ELISA. Positive control sera were obtained from 163 cows showing clinical symptoms of H. bovis infection and negative control sera from 60 cows free from the infection.The antigen for theELISA was obtained from H. bovis L1 larvae. Three basie fraction were isolated from whole excreted/secreted antigen by elution from gel and by preparative isoelectrofocusing.Using the Western-Blotting method it was demonstrated that Hy A (22-24 kDa and pI 4-5) had the best antigenic property. As can be seen from these investigations the developed ELISA kit for the detection of H. bovis antibodies in cows is highly specific and sensitive
Peculiarities in the life cycle of warbles and their effect on the control of this disease
Wplyw kokcydiozy drobiu na efekty produkcyjne w hodowli drobiu
Economical lisses due to clinical from of coccidiosis in chickens and prophylactic methods with special regard immunoprophy laxis were discussed
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