231 research outputs found
Morpho/Proteomic Comparative between High Grade Pleomorphic Sarcoma and Metastasis Diagnosed in an Old Captive Common Hippo
Old age is a risk factor for cancer development in humans and animals, and studies have shown that tumors in animals are acceptable models for studying human cancers, considering the similarities between their factors. This work was conducted in a 53-year-old captive female common hippo (Hippopotamus amphibious) with a left leg tumor and metastatic mass. Histopathological and immunohistochemical analyses were carried out with a final diagnosis of a high grade pleomorphic sarcoma. A proteomic study using mass spectrometry was added in order to identify further aspects of the primary tumor and metastasis which could improve our understanding, and each tissue showed a proteomic profile indicative of its pathologic state with significant differences between healthy tissue, primary and metastatic tumors. Low levels of beta-actin in primary tumors were identified, and this may be associated with a possible consequence of cytoskeleton dynamic modification. In metastatic tissue, these dynamics may be affected by the presence of HSP chaperone 60.FAPESP: 2012/02514-9Univ Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, BR-04039032 Diadema, SP, BrazilUniv Fed Sao Paulo, Escola Paulista Med, BR-04023062 Sao Paulo, SP, BrazilAC Camargo Canc Ctr, Dept Patol, BR-01509010 Sao Paulo, SP, BrazilUniv Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, BR-04039032 Diadema, SP, BrazilUniv Fed Sao Paulo, Escola Paulista Med, BR-04023062 Sao Paulo, SP, BrazilWeb of Scienc
Controle biológico de alguns fitopatógenos do solo no tomateiro.
Objetivando avaliar o comportamento do antagônico trichoderma spp. à Fusarium oxysporum, Sclerotium rolfsii e Rhizoctonia solani, "in vitro" no laboratório do EMBRAPA/CPATSA
Cross sections relevant to gamma-ray line emission in solar flares:He-induced reactions on O nuclei
Gamma-ray production cross sections have been measured for gamma-ray lines
copiously emitted in the He bombardment of O nuclei: the 937, 1042
and 1081 keV lines of F and the 1887 keV line of Ne. Four Ge
detectors with BGO shielding for Compton suppression were used to measure the
angular distributions of the gamma-rays. The excitation functions have been
obtained for He bombarding energies from 3.7 to 36 MeV. Total cross
sections are tabulated for calculations relevant to gamma-ray astronomy. The
importance of these lines as diagnosis for the presence and properties of
accelerated He in solar flares is discussed in light of the measured cross
sections.Comment: Phys. Rev. C68 (2003) 0258XX, in pres
A new experiment for the determination of the 18F(p,alpha) reaction rate at nova temperatures
The 18F(p,alpha) reaction was recognized as one of the most important for
gamma ray astronomy in novae as it governs the early 511 keV emission. However,
its rate remains largely uncertain at nova temperatures. A direct measurement
of the cross section over the full range of nova energies is impossible because
of its vanishing value at low energy and of the short 18F lifetime. Therefore,
in order to better constrain this reaction rate, we have performed an indirect
experiment taking advantage of the availability of a high purity and intense
radioactive 18F beam at the Louvain La Neuve RIB facility. We present here the
first results of the data analysis and discuss the consequences.Comment: Contribution to the Classical Novae Explosions conference, Sitges,
Spain, 20-24 May 2002, 5 pages, 3 figure
Efeitos do anelamento como retardante de crescimento em Botryodiplodia theobromae-II.
Foi observado que a prática do anelamento pode ser adotada desde que a proteção dos ferimentos seja de imediato e periódicamente
Botryodiplodia theobromae Lat. em mangueira do vale Sao Francisco, IV.Protecao de pomares.
Este trabalho objetivou definir um manejo efetivo de proteção para que este venha a ser incluído num cronograma de rotina anual e adotados por todos os mangicultores da região.Suplemento
- …