Localized spin ordering in Kondo lattice models

Using a non-Abelian density matrix renormalization group method we determine the phase diagram of the Kondo lattice model in one dimension, by directly measuring the magnetization of the ground-state. This allowed us to discover a second ferromagnetic phase missed in previous approaches. The phase transitions are found to be continuous. The spin-spin correlation function is studied in detail, and we determine in which regions the large and small Fermi surfaces dominate. The importance of double-exchange ordering and its competition with Kondo singlet formation is emphasized in understanding the complexity of the model.Comment: Revtex, 4 pages, 4 eps figures embedde

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

Isoflurane and CO2 anesthetics used in brain tissue collection and electrolytic impacts

ABSTRACT The use of gaseous inhalation agents for animal euthanasia offers rapid action due to easy access to the arterial circulation. The neuroprotective property of postmortem brain tissue collection was investigated using isoflurane and carbon dioxide (CO2) on the serum bioindicators of sodium and potassium. Serum samples were collected from 3 groups of animals (n=8) and donated to this study, previously approved by the Ethics Committee on the Use of Animals (CEUA 173/2020). The serum groups analyzed were named isoflurane, CO2 and cannabidiol (CBD/CO2). The results demonstrated that the three groups had elevated potassium levels compared to the control group (*, p<0.05), indicating hyperkalemia, while no difference was observed in serum sodium. Furthermore, the CO2 and CBD/CO2 groups differed significantly from the isoflurane group (#, p<0.05), which had the highest level of hyperkalemia. These findings contribute to our understanding of the physiological effects of different euthanasia methods on the biochemical profiles of animals. In conclusion, the use of CO2 is recommended as a euthanasia method for collecting brain tissue due to the lowest impact on potassium levels

Expansion of activated cxcr5+icos+ tfh cells and plasmablasts induced by seasonal influenza vaccine is impaired in anti-il-6r treated rheumatoid arthritis patients

Objectives: To investigate the importance of IL-6 for the in vivo differentiation of human Tfh cells, taking advantage of influenza vaccination in patients under anti-IL-6R therapy.info:eu-repo/semantics/publishedVersio

Características produtivas, morfogênicas e estruturais do capim Piatã submetido à adubação orgânica

The organic fertilizer can be a viable alternative in the production of forage grasses, however there is little information regarding doses and composition of the major organic fertilizers. The aim of this paper was to verify the influence of the different doses of organic compost produced from two types of poultry litter on the structural, morphogenetic and productive characteristics of Brachiaria brizantha cv 'Piatã'. The experiment was conducted in a greenhouse in a completely randomized design in a factorial scheme l with parcel subdivided in time. The parcels were composed by six treatments: two types of compost (poultry litter based in sugar cane and napier grass) in three doses (100, 200 and 300kg ha-1 equivalent N.) and the subparcels by the four different periods of cut. The composts were applied in a unique dose, after the uniformization cut, at the quantities: 11,36 and 11,83, 22,73 and 23,67, 34,09 and 35,50 g pot-1 for the poultry litter based in sugar cane and napier grass, respectively which are equivalent to the rates of 0, 100, 200 and 300kg ha-1 of N. The variables measured were: dry matter production (DMP), leaf appearance rate (LApR), phyllochron, leaf elongation dose (LER) and shoots elongation rate (SER), number of green leaves (NGL), final size of the leaf (FSL). No significant difference between the types of composts and in the interaction compost x doses was observed, thus, both could be used without the risk of loss in the use of the nutrients by the plants evaluated in the experiment. There was a significant difference between the DMP, LApR, phyllochron, LER, SER, NGL and FSL because of the increasing rates of nitrogen, followed by a linear model of prediction. The effect of the periods of slaughter was also observed, where the slaughters carried out in the summer presented a better performance over the morphogenetic and structural features evaluated.A adubação orgânica pode ser uma alternativa viável na produção de gramíneas forrageiras, no entanto poucas são as informações referentes às doses e à composição dos principais adubos orgânicos. O objetivo do trabalho foi verificar a influência das diferentes doses de composto orgânico produzido com dois tipos de cama de frango sobre as características produtivas, morfogênicas e estruturais de Brachiaria brizantha, cv 'Piatã'. O experimento foi conduzido em casa de vegetação em delineamento inteiramente casualizado, em esquema fatorial com parcela subdividida no tempo. As parcelas foram compostas por seis tratamentos: dois tipos compostos (cama de frango a base de cana de açúcar ou napier) em três doses (100, 200 e 300kg ha-1 equivalente N) e as subparcelas pelos quatro períodos de cortes. Os compostos foram aplicados em dose única, após o corte de uniformização, nas quantidades de: 11,36 e 11,83, 22,73 e 23,67, 34,09 e 35,50g vaso-1 para os compostos de cama de frangos a base de cana de açúcar e capim napier, respectivamente, que equivalem às doses de 100, 200 e 300kg ha-1 de N. As variáveis mensuradas foram: produção de matéria seca (PMS), taxa de aparecimento de folha (TApF), taxa de alongamento de folha (TAlF), filocrono, taxa de alongamento de pseudocolmo (TAlC), comprimento final de folha (CFF) e números de folhas verdes (NFV). Não foi observada diferença significativa entre os tipos de composto e na interação composto x dose. Dessa forma, ambos poderiam ser utilizados sem que ocorresse prejuízo no aproveitamento dos nutrientes pelas plantas avaliadas no experimento. Houve diferença significativa entre a PMS, TApF, filocrono, TAlF e TAlC, NFV e TFF em função das doses crescentes de nitrogênio, segundo um modelo linear de predição. Também foi observado efeito dos períodos de corte, em que os cortes realizados no verão apresentaram melhor desempenho sobre as características morfogênicas e estruturais.Universidade Federal da Grande Dourados (UFGD)UFGDUFGD Faculdade de Ciências Agrárias Curso de ZootecniaUniversidade Estadual Paulista (UNESP)Universidade Estadual Paulista (UNESP