39 research outputs found
ÜBER DIE ROLLE DER PROGNOSTIZIERUNG DER WITTERUNGS- UND KLIMAVERHÄLTNISSE IM BA UPROZEß
The large stock of instruments und machines, their inherent performance und concomi-
tant increase in efficiency require that the planning or programming of machines (resources)
should take into account not only the machine power, but also natural (meteorological and
climatic) conditions.
The role and significance of natural factors differ in the various construction (technologi-
cal) processes. This paper analyzes the possible utilization of domestic prognoses, their in-
formation content und the time horizon und reliability of their validity
SYSTEM TECHNOLOGICAL ASSESSMENT
A task occurring rather often is to have to choose among several possible technical alternatives according to more of different target functions and criteria. The system of preferences seems the most suitable basis for selecting the more anvantageous alternatives, where the plan modifications fulfilling requirements are judged. In the course of assessment procedures individual preferences have a differing importance, this can be expressed by weighting the
preferences. In the frame of a numerical example we wish to introduce the use of the described comparison methods, also with the aid of a microcomputer
A magzatok és embriók kereskedelmi és ipari célú felhasználásának morális és jogi kérdései
In 1986 the Council of Europe adopted a recommendation on the use of human embryos and foetuses for diagnostic, therapeutic, scientific, industrial and commercial purposes [Parliamentary Assembly Recommendation 1046 (1986)]. At the time, biotechnology was less advanced than today, however, its main challenges were already apparent. In its recommendation, the Council of Europe called upon the Member States to restrict the industrial use of human embryos to therapeutic purposes benefiting the health of the respective embryos, while the tissues of dead foetuses may only be used for strictly medical, scientific purposes. The commercial, profit-oriented use of embryos or fetal tissue is prohibited, with special regard to human dignity. Today, we are faced with the growing risk of encountering products manufactured on the basis of experiments conducted with, or base material including human embryonic cell lines. Such commercial and industrial uses of human embryos and foetuses give rise to concerns related to the religious freedom and the freedom of conscience, fundamental rights protected by both national constitutions and the Charter of Fundamental rights.Napjainkra a kereskedelmi forgalomban kapható egyes fogyasztási cikkek magzatok sejtjeinek, szöveteinek felhasználásával készülnek. Ilyen termékek különösen egyes vakcinák, kozmetikai cikkek vagy akár élelmiszerek. A védőoltások körében számos vakcina, így például a hazánkban is kötelező védőoltás, a mumpsz- kanyaró-rubeola (MMR) ellen kifejlesztett, Magyarországon engedélyezett és forgalomban lévő oltóanyag (MMR-VAXPRO) művi abortuszból származó sejtvonalak felhasználásával készült. A kozmetikai termékek körében a neocutis svájci kozmetikai cég PSP® (Processed Skin Cell Proteins) fejlesztésével kapcsolatban láttak napvilágot olyan hírek, miszerint a PSP®-összetevő abortumból származó sejtvonalakkal készült. Végül, az élelmiszergyártás területén az Egyesült Államokbeli Senomyx vállalat került reflektorfénybe a HEK 293 (Human Embryonic Kidney cells) sejtvonalak miatt, mellyel élelmiszergyártó cégek termékeihez fejlesztettek ízfokozókat
A magzatok és embriók kereskedelmi és ipari célú felhasználásának morális és jogi kérdései
In 1986 the Council of Europe adopted a recommendation on the use of human embryos and foetuses for diagnostic, therapeutic, scientific, industrial and commercial purposes [Parliamentary Assembly Recommendation 1046 (1986)]. At the time, biotechnology was less advanced than today, however, its main challenges were already apparent. In its recommendation, the Council of Europe called upon the Member States to restrict the industrial use of human embryos to therapeutic purposes benefiting the health of the respective embryos, while the tissues of dead foetuses may only be used for strictly medical, scientific purposes. The commercial, profit-oriented use of embryos or fetal tissue is prohibited, with special regard to human dignity. Today, we are faced with the growing risk of encountering products manufactured on the basis of experiments conducted with, or base material including human embryonic cell lines. Such commercial and industrial uses of human embryos and foetuses give rise to concerns related to the religious freedom and the freedom of conscience, fundamental rights protected by both national constitutions and the Charter of Fundamental rights.Napjainkra a kereskedelmi forgalomban kapható egyes fogyasztási cikkek magzatok sejtjeinek, szöveteinek felhasználásával készülnek. Ilyen termékek különösen egyes vakcinák, kozmetikai cikkek vagy akár élelmiszerek. A védőoltások körében számos vakcina, így például a hazánkban is kötelező védőoltás, a mumpsz- kanyaró-rubeola (MMR) ellen kifejlesztett, Magyarországon engedélyezett és forgalomban lévő oltóanyag (MMR-VAXPRO) művi abortuszból származó sejtvonalak felhasználásával készült. A kozmetikai termékek körében a neocutis svájci kozmetikai cég PSP® (Processed Skin Cell Proteins) fejlesztésével kapcsolatban láttak napvilágot olyan hírek, miszerint a PSP®-összetevő abortumból származó sejtvonalakkal készült. Végül, az élelmiszergyártás területén az Egyesült Államokbeli Senomyx vállalat került reflektorfénybe a HEK 293 (Human Embryonic Kidney cells) sejtvonalak miatt, mellyel élelmiszergyártó cégek termékeihez fejlesztettek ízfokozókat
Kondo quantum dot coupled to ferromagnetic leads: Numerical renormalization group study
We systematically study the influence of ferromagnetic leads on the Kondo
resonance in a quantum dot tuned to the local moment regime. We employ Wilson's
numerical renormalization group method, extended to handle leads with a spin
asymmetric density of states, to identify the effects of (i) a finite spin
polarization in the leads (at the Fermi-surface), (ii) a Stoner splitting in
the bands (governed by the band edges) and (iii) an arbitrary shape of the
leads density of states. For a generic lead density of states the quantum dot
favors being occupied by a particular spin-species due to exchange interaction
with ferromagnetic leads leading to a suppression and splitting of the Kondo
resonance. The application of a magnetic field can compensate this asymmetry
restoring the Kondo effect. We study both the gate-voltage dependence (for a
fixed band structure in the leads) and the spin polarization dependence (for
fixed gate voltage) of this compensation field for various types of bands.
Interestingly, we find that the full recovery of the Kondo resonance of a
quantum dot in presence of leads with an energy dependent density of states is
not only possible by an appropriately tuned external magnetic field but also
via an appropriately tuned gate voltage. For flat bands simple formulas for the
splitting of the local level as a function of the spin polarization and gate
voltage are given.Comment: 18 pages, 18 figures, accepted for publication in PR