2,100 research outputs found
Vortex-Antivortex Lattice in Ultra-Cold Fermi Gases
We discuss ultra-cold Fermi gases in two dimensions, which could be realized
in a strongly confining one-dimensional optical lattice. We obtain the
temperature versus effective interaction phase diagram for an s-wave superfluid
and show that, below a certain critical temperature T_c, spontaneous
vortex-antivortex pairs appear for all coupling strengths. In addition, we show
that the evolution from weak to strong coupling is smooth, and that the system
forms a square vortex-antivortex lattice at a lower critical temperature T_M.Comment: Submitted to Physical Review Letter
Why business angels reject investment opportunities: Is it personal?
A major focus of research on business angels has examined their decision-making processes and investment criteria. As business angels reject most of the opportunities that they receive, this article explores the reasons informing such decisions. In view of angel heterogeneity, investment opportunities might be expected to be rejected for differing reasons. Two sources of data are used to examine this issue. Face-to-face interviews with 30 business angels in Scotland and Northern Ireland provided information on typical âdeal killersâ. This was complemented by an Internet survey of United Kingdom that attracted responses from 238 UK business angels. The findings confirm that the main reason for rejection relates to the entrepreneur/management team. However, angel characteristics do not explain the number of reasons given for opportunity rejection nor do they predict the reasons for rejecting investment opportunities. This could be related to the increasing trend for business angels to join organised groups which, in turn, leads to the development of a shared repertoire of investment approaches. We suggest the concept of âcommunities-of-practiceâ as an explanation for this finding
ResĂduos da agroindĂșstria do dendĂȘ: caracterização e equivalĂȘncia em fertilizantes.
bitstream/item/57410/1/CPATU-BP198.pd
Composição quĂmica dos subprodutos da agroindĂșstria do dendĂȘ.
SUBPRODUTOS DO DENDĂ; Cachos vazios, engaços ou vassouras; Efluente natural; CONHEĂA OS OUTROS SUBPRODUTOS DA AGROINDĂSTRIA DO DENDĂ; Efluente centrifugado ? Fase lĂquida; Efluente centrifugado ? Fase sĂłlida; Fibra de polpa; APROVEITE OS SUBPRODUTOS DA AGROINDĂSTRIA DO DENDĂ NA ADUBAĂĂO DE SUA LAVOURA; Adubação; Composição quĂmica; OBSERVE A COMPOSIĂĂO QUĂMICA DO CACHO VAZIO; AVALIE AGORA O QUANTO EQUIVALE UMA TONELADA DE CACHOS VAZIOS EM ADUBO QUĂMICO; EXAMINE E COMPARE QUE O CACHO VAZIO, MESMO DEPOIS DE LAVADO PELA CHUVA, NĂO PERDE NUTRIENTES; VERIFIQUE AGORA A QUANTO EQUIVALE UMA TONELADA DE CACHOS VAZIOS LAVADOS, EM ADUBO QUĂMICO; A FIBRA DA POLPA DO DENDĂ Ă RICA EM NUTRIENTES. OBSERVE; AGORA CONFIRA A QUANTO EQUIVALE UMA TONELADA DA FIBRA DA POLPA DO DENDĂ, EM ADUBO QUĂMICO; O EFLUENTE NATURAL TAMBĂM Ă BASTANTE RICO EM NUTRIENTES. VERIFIQUE; SAIBA AGORA QUANTO UM METRO CĂBICO DE EFLUENTE NATURAL EQUIVALE EM ADUBO QUĂMICO; O EFLUENTE CENTRIFUGADO TAMBĂM CONTĂM MUITOS NUTRIENTES. AVALIE; VEJA A QUANTO EQUIVALE UM METRO CĂBICO OU UMA TONELADA DE EFLUENTE CENTRIFUGADO EM ADUBO QUĂMICObitstream/item/61201/1/CPATU-Doc119.pd
Expression of angiogenic and inflammation markers in murine schistosomiasis mansoni
Aim: to study angiogenesis in the livers of mice infected with S. mansoni.N/
Could Estradiol be used as a biomarker of infection in Schistosoma haematobium infected patients?
Urogenital schistosomiasis is a chronic infection caused by the human blood fluke Schistosoma haematobium. Schistosomiasis haematobia is a known risk factor for cancer leading to squamous cell carcinoma of the urinary bladder (SCC). This is a neglected tropical disease endemic in many countries of Africa and the Middle East. Schistosome eggs produce catechol-estrogens. These estrogenic molecules are metabolized to active quinones that cause alterations in DNA (leading in other contexts to breast or thyroid cancer). Our group has shown that schistosome egg associated catechol estrogens induce tumor-like phenotypes in urothelial cells, originated from parasite estrogen-host cell chromosomal DNA adducts and mutations. Also we have demonstrated that these molecules are detected as Estradiol in sera of infected patients.N/
Biodistribuição do 18FDG em ratos nude balb-c nu/nu normaiS
Resumo do poster apresentado ao XII Congresso Nacional de Medicina Nuclear, 12-14 Novembro 2009, Mealhad
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