Experimental study of the Sb-Sn-Zn alloy system

experimental description of the SbSn-Zn system by methods scanning electron microskope and differetial scanning calorimetryexperimentální popis ternární soustavy Sb-Sn-Zn metodami skenovací elektronové mikroskopie a diferenční skenovací kalorimetrieexperimental description of the SbSn-Zn system by methods scanning electron microskope and differetial scanning calorimetr

A competitive integration model of exogenous and endogenous eye movements

We present a model of the eye movement system in which the programming of an eye movement is the result of the competitive integration of information in the superior colliculi (SC). This brain area receives input from occipital cortex, the frontal eye fields, and the dorsolateral prefrontal cortex, on the basis of which it computes the location of the next saccadic target. Two critical assumptions in the model are that cortical inputs are not only excitatory, but can also inhibit saccades to specific locations, and that the SC continue to influence the trajectory of a saccade while it is being executed. With these assumptions, we account for many neurophysiological and behavioral findings from eye movement research. Interactions within the saccade map are shown to account for effects of distractors on saccadic reaction time (SRT) and saccade trajectory, including the global effect and oculomotor capture. In addition, the model accounts for express saccades, the gap effect, saccadic reaction times for antisaccades, and recorded responses from neurons in the SC and frontal eye fields in these tasks. © The Author(s) 2010

Hsp90 Interacts Specifically with Viral RNA and Differentially Regulates Replication Initiation of Bamboo mosaic virus and Associated Satellite RNA

Host factors play crucial roles in the replication of plus-strand RNA viruses. In this report, a heat shock protein 90 homologue of Nicotiana benthamiana, NbHsp90, was identified in association with partially purified replicase complexes from BaMV-infected tissue, and shown to specifically interact with the 3′ untranslated region (3′ UTR) of BaMV genomic RNA, but not with the 3′ UTR of BaMV-associated satellite RNA (satBaMV RNA) or that of genomic RNA of other viruses, such as Potato virus X (PVX) or Cucumber mosaic virus (CMV). Mutational analyses revealed that the interaction occurs between the middle domain of NbHsp90 and domain E of the BaMV 3′ UTR. The knockdown or inhibition of NbHsp90 suppressed BaMV infectivity, but not that of satBaMV RNA, PVX, or CMV in N. benthamiana. Time-course analysis further revealed that the inhibitory effect of 17-AAG is significant only during the immediate early stages of BaMV replication. Moreover, yeast two-hybrid and GST pull-down assays demonstrated the existence of an interaction between NbHsp90 and the BaMV RNA-dependent RNA polymerase. These results reveal a novel role for NbHsp90 in the selective enhancement of BaMV replication, most likely through direct interaction with the 3′ UTR of BaMV RNA during the initiation of BaMV RNA replication

Standard piggery of the closed breeding cycle for 39 LU (livestock units) designed by IBMER for the family farms

W Instytucie Budownictwa, Mechanizacji i Elektryfikacji Rolnictwa (Zakład Standaryzacji Technik Utrzymania Zwierząt) opracowano projekt standardowej chlewni na 39 DJP w cyklu zamkniętym dla gospodarstw rodzinnych i farmerskich. Projekt wykonano zgodnie z obowią-zującymi od roku 2004 standardami technologicznymi opartymi na regulacjach prawnych U.E. i naszego kraju. Zawiera on założenia programowe chlewni, systemy utrzymania poszczególnych kategorii świń, wyposażenie techniczne i technologiczne, technikę żywienia, pojenia, usuwania odchodów oraz zestawienie maszyn i urządzeń. Projekt standardowej chlewni spełnia wymagania dobrostanu zwierząt jak również prowadzenia produkcji ekonomicznej i przyjaznej środowisku naturalnemu. Przewiduje się zastosowanie biofiltra do oczyszczania powietrza usuwanego z chlewni w procesie wentylacji. Projekt został wdrożony w gospodarstwie farmerskim.Standard piggery building for 39 livestock units (LU) in closed breeding cycle, provided for the family farms, was designed at the Institute for Building, Mechanization and Electrification in Agriculture (Department of Animal Keeping Technique Standardization). The piggery was designed according to obligatory (since 2004) technological standards based on the EU and Polish legal regulations. Design includes the planned brief foredesign, keeping system of particular swine categories, technical and technological equipment, feeding and watering techniques, manure disposal as well as the list of necessary machines and facilities. Designed standard piggery fulfills the requirements of animal welfare as well as the rules of economic and natural environment friendly production. Application of a biofilter is provided for cleaning the air removed from the building by ventilation system. The piggery design has been implemented on a family farm

The age and petrography of two Luna 20 fragments and inferences for widespread lunar metamorphism

Ages were determined by the ^(40)Ar-^(39)Ar method on two metaclastic rocks returned from the lunar highlands north of Mare Fecunditatis by the Luna 20 probe. Both samples gave very well-defined argon retention ages of 3.90 ± 0.04 AE which are indistinguishable from each other within a resolution of 0.02 AE. Both fragments, 22006 and 22007, are highly recrystallized polymict breccias; there is no evidence for loss of radiogenic ^(40)Ar, and the age almost surely dates the time of recrystallization. The cosmic ray exposure ages of these fragments are similar and high: 900 million years for 22006, 1300 million years for 22007. 22007 also contains substantial trapped argon with a high ^(40)Ar^(36)Ar ratio. The Luna 20 results greatly extend the area of the Moon's surface exhibiting a well-defined record of metamorphism at 3.9 AE. So far, lunar history in the interval 4.6−3.9 AE is not preserved in the ages of surface rocks. This obliteration suggests lunar-wide metamorphic conditions occurring or terminating at this time as a result of major impacts