Desempenho e avaliação das carcaças de borregos castrados ou inteiros terminados em confinamento.

Este trabalho teve como objetivo avaliar o desempenho e a qualidade da carcaça de borregos castrados e inteiros terminados em confinamento

Oncoplastic conservative surgery for breast cancer: long-term outcomes of our first ten years experience

The main goal of oncoplastic breast surgery (OBS) is to optimize cosmetic outcomes and reduce patient morbidity, while still providing an oncologically-safe surgical outcome and extending the target population of conservative surgery. Although the growing number of reported experiences with oncoplastic surgery, few studies account for the long-term outcomes

Oncological safety of stromal vascular fraction enriched fat grafting in two-stage breast reconstruction after nipple sparing mastectomy: long-term results of a prospective study

OBJECTIVE: Autologous fat transfer (AFT) is commonly used to treat implant palpability and prevent fibrosis and thinning in mastectomy skin flaps. A major limit to this procedure is volume retention over time, leading to the introduction of fat enrichment with stromal vascular fraction (SVF+AFT). Oncological concerns have been raised over the injection of an increased concentration of progenitors cells (ASCs) in the SVF. The aim of the study is to evaluate the long-term cancer recurrence risk of SVF+AFT cases compared to AFT, in patients undergoing Nipple Sparing Mastectomy (NSM). PATIENTS AND METHODS: A prospective study was designed to compare three groups of patients undergoing NSM followed by SVF+AFT, AFT or none (control group), after a two-stage breast reconstruction. Patients were strictly followed-up for at least 5-years from the second stage reconstructive procedure. Loco-regional and systemic recurrence rate were evaluated over time as the primary outcome. Logistic regression was used to investigate which factors were associated with recurrence events and independent variables of interest were: surgical technique, age above 50 years old, lympho-vascular invasion, oncological stage, adjuvant or neoadjuvant chemotherapy, adjuvant radiotherapy and adjuvant hormone therapy. RESULTS: 41 women were included in G1 (SVF+AFT), 64 in G2 (AFT), and 64 in G3 (control group). Loco-regional recurrence rate was 2.4% for G1, 4.7% for G2, and 1.6% for G3. Systemic recurrence was 7.3%, 3.1%, and 3.1%, respectively. Among the variables included, there were no significant risk factors influencing a recurrence event, either loco-regional or systemic. In particular, SVF+AFT (G1) did not increase the oncological recurrence. CONCLUSIONS: Our data suggest that both centrifuged and SVF-enhanced fat transfer have a similar safety level in comparison to patients who did not undergo fat grafting in breast reconstruction after NSM

On magnetic field generation in Kolmogorov turbulence

We analyze the initial, kinematic stage of magnetic field evolution in an isotropic and homogeneous turbulent conducting fluid with a rough velocity field, v(l) ~ l^alpha, alpha<1. We propose that in the limit of small magnetic Prandtl number, i.e. when ohmic resistivity is much larger than viscosity, the smaller the roughness exponent, alpha, the larger the magnetic Reynolds number that is needed to excite magnetic fluctuations. This implies that numerical or experimental investigations of magnetohydrodynamic turbulence with small Prandtl numbers need to achieve extremely high resolution in order to describe magnetic phenomena adequately.Comment: 4 pages, revised, new material adde

Intraoperative ultrasound and oncoplastic combined approach: an additional tool for the oncoplastic surgeon to obtain tumor-free margins in breast conservative surgery—a 2-year single-center prospective study

In case of breast postoncologic reconstructive surgery when an oncoplastic approach is adopted and volume replacement with glandular flap mobilization is performed, tumor-positive margins may create a significant problem. We present our experience with intraoperative ultrasound as an adjunctive tool to guide breast surgeons to improve margin-free management of neoplastic breast lesions in patients undergoing oncoplastic surgery

Rendimento comercial dos quartos traseiros de novilhas cruzadas desossados sob dois padrões de cortes.

O rendimento comercial está relacionado à qualidade de cortes da carcaça, ou seja, o peso dos cortes em relação ao peso vivo. O objetivo foi comparar o rendimento comercial de cortes do traseiro de novilhas cruzadas, sob dois padrões de corte: Nacional e Churrascaria

Efeito do estado sexual sobre as características quali-quantitativas das carcaças de animais superprecoces.

O objetivo do trabalho foi avaliar as características quali-quantitativas das carcaças dos animais superprecoces mantidos em confinamento em função do efeito sexual. Esse experimento foi desenvolvido na Embrapa Gado de Corte, Campo Grande - MS, sendo utilizados 105 animais, machos e fêmeas de sete grupos genéticos diferentes

Local Optical Spectroscopy in Quantum Confined Systems: A Theoretical Description

A theoretical description of local absorption is proposed in order to investigate spectral variations on a length scale comparable with the extension of the relevant quantum states. A general formulation is derived within the density-matrix formalism including Coulomb correlation, and applied to the prototypical case of coupled quantum wires. The results show that excitonic effects may have a crucial impact on the local absorption with implications for the spatial resolution and the interpretation of near-field optical spectra.Comment: To appear in Phys. Rev. Lett. - 11 pages, 3 PostScript figures (1 figure in colors) embedded. Uses RevTex, and psfig style

Efeito da maturação e do estado sexual sobre a qualidade da carne de animais superprecoces.

O objetivo foi avaliar os fatores qualitativos da carne de animais superprecoces em relação ao sexo e à maturação