LAND EVALUATION FOR DIFFERENT CULTURES, THE CITY RECAS TIMIS COUNTY

The total area of 23,198 ha is Recaş village.When taken in culture and fertilized soils shows an enrichment of cations basics.Agricultural use as arable land is constrained cups increased Lift temporarily poor because of their compactness or submitted.To improve a number of interventions are necessary agrotechnical and agrochemical: the moldboard plowing to alleviate temporary excess humidity, calcareous amendments correct reaction conditions, organic fertilizers to increase reserves of humus and fertilizers. Due to excessive rainfall and high humidity plants are not optimal development.State nutrient supply is poor and existing reserves are mobilized difficult becauseair-fluid system losses and poor microbiological activities

A de Haas-van Alphen study of the filled skutterudite compounds PrOs4_4As12_{12} and LaOs4_4As12_{12}

Comprehensive magnetic-field-orientation dependent studies of the susceptibility and de Haas-van Alphen effect have been carried out on single crystals of the filled skutterudites PrOs$_4$As$_{12}$ and LaOs$_4$As$_{12}$ using magnetic fields of up to 40~T. Several peaks are observed in the low-field susceptibility of PrOs$_4$As$_{12}$, corresponding to cascades of metamagnetic transitions separating the low-field antiferromagnetic and high-field paramagnetic metal (PMM) phases. The de Haas-van Alphen experiments show that the Fermi-surface topologies of PrOs$_4$As$_{12}$ in its PMM phase and LaOs$_4$As$_{12}$ are very similar. In addition, they are in reasonable agreement with the predictions of bandstructure calculations for LaOs$_4$As$_{12}$ on the PrOs$_4$As$_{12}$ lattice. Both observations suggest that the Pr 4$f$ electrons contribute little to the number of itinerant quasiparticles in the PMM phase. However, whilst the properties of LaOs$_4$As$_{12}$ suggest a conventional nonmagnetic Fermi liquid, the effects of direct exchange and electron correlations are detected in the PMM phase of PrOs$_4$As$_{12}$. For example, the quasiparticle effective masses in PrOs$_4$As$_{12}$ are found to decrease with increasing field, probably reflecting the gradual suppression of magnetic fluctuations associated with proximity to the low-temperature, low-field antiferromagnetic state

SUITABILITY FAVORABILITY SOIL AND THE CITY OF PERIMETER FAGET, TIMIS COUNTY FOR MAJOR CROPS AGRICULTURAL AND HORTICULTURAL

The Făget city is located in the south-western Romania, in the contact area of theHills Plain Lugoj the upper Bega River.Plain occupies about half the land area is investigated and the lowest level morphology with hypsometric values between 75 and 200 mIn general, agricultural land is conditional evaluation of knowledge of the complex operation of breeding and fruit-bearing plants and to determine the degree of favorability of these conditions for each use and culture (as can be adversely land for certain crops and agricultural uses and favorable for others), through an index system of evaluation techniques and notes.The main types and subtypes of soils in the urban area Făget are: Regosoil,Luvisoil stagnated Luvisoil white, Gleiosolil typical, eutric

SUITABILITY OF SOILS REMETEA MARE, TIMIS COUNTY

Soils studied area formed by the complex interaction of factors of which the mostimportant pedogenetic are: landscape, water, rock parent, climate, vegetation, man. Thus the investigated area are two areas where soils are well differentiated, a result of different pedogenetic conditions.In the high plains and hilly area on the material more or less reddish carbonateformed and evolved preluvisols mollic typical.Mineralization because most parts of the debris that is deposited annually in the topsoil to form a small amount of humus and therefore higher horizon color is brown (Ao), met frequently with preluvisols horizon

International researcher mobility and knowledge transfer in the social sciences and humanities

This article explores knowledge outcomes of international researcher mobility in the social sciences and humanities. Looking in particular at international experiences of longer durations in the careers of European PhD graduates, it proposes a threefold analytical typology for understanding the links between the modes, durations, and outcomes of this mobility in terms of the exchange of codified knowledge; the sharing of more tacit knowledge practices; and the development of a cosmopolitan identity. The findings suggest that, under the right conditions, there can be an important and transformative value to longer stays, which can lead to enduring outcomes in terms of knowledge production and innovation and the spatially distributed networks that sustain it

Non-adiabatic small polaron hopping in the n=3 Ruddlesden-Popper compound Ca4Mn3O10

Magnetotransport properties of the compound Ca4Mn3O10 are interpreted in terms of activated hopping of small magnetic polarons in the non-adiabatic regime. Polarons are most likely formed around Mn3+ sites created by oxygen substoichiometry. The application of an external field reduces the size of the magnetic contribution to the hopping barrier and thus produces an increase in the conductivity .We argue that the change in the effective activation energy around TN is due to the crossover to VRH conduction as antiferromagnetic order sets in.Comment: 29 pages, 7 figure

Systematic functional analysis of Leishmania protein kinases identifies regulators of differentiation or survival

Differentiation between distinct stages is fundamental for the life cycle of intracellular protozoan parasites and for transmission between hosts, requiring stringent spatial and temporal regulation. Here, we apply kinome-wide gene deletion and gene tagging in Leishmania mexicana promastigotes to define protein kinases with life cycle transition roles. Whilst 162 are dispensable, 44 protein kinase genes are refractory to deletion in promastigotes and are likely core genes required for parasite replication. Phenotyping of pooled gene deletion mutants using bar-seq and projection pursuit clustering reveal functional phenotypic groups of protein kinases involved in differentiation from metacyclic promastigote to amastigote, growth and survival in macrophages and mice, colonisation of the sand fly and motility. This unbiased interrogation of protein kinase function in Leishmania allows targeted investigation of organelle-associated signalling pathways required for successful intracellular parasitism