Studies on the effect of compatible solutes, epididymal compounds, and antioxidants on the post-thaw motility and fertility of pellet frozen ram spermatozoa / by Luis Gabriel Sánchez-Partida.

Includes bibliographical references (leaves 232-257).xv, 257 leaves : ill. ; 30 cm.Aims to determine if the compatible solutes (proline, glycine betaine, and trehalose), the epididymal compounds (taurine, hypotaurine and inositol) or the antioxidants (carnosine and ascorbic acid) in tris-citrate based diluents could improve the post-thaw survival and/or fertility of ram spermatazoa.Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Science, 1996

Historia imperial y cesarea : en que sumariamente se contienen las vidas, y hechos de todos los emperadores, desde Iulio Cesar, hasta Maximiliano Primero /

Antep.Marca tip. en port. a dos tintasTexto a dos col.Esc. xil. en h. œ3Las il. corresponden al retrato grab. xil. de cada biografiado al comienzo de cada biografíaCCPB000033200-3BHR/B-048-378.BHR/B-048-378.PielFDH 4985Hª Derecho/N-203œ6, A-Z6, Aa-Zz6, Aaa-Nnn6, Ooo-Qqq

Historia imperial y cesarea : en que sumariamente se contienen las vidas, y hechos de todos los emperadores, desde Iulio Cesar, hasta Maximiliano Primero /

Antep.Marca tip. en port. a dos tintasTexto a dos col.Esc. xil. en h. œ3Las il. corresponden al retrato grab. xil. de cada biografiado al comienzo de cada biografíaCCPB000033200-3BHR/B-048-378.BHR/B-048-378.PielFDH 4985Hª Derecho/N-203œ6, A-Z6, Aa-Zz6, Aaa-Nnn6, Ooo-Qqq

Purification of Butanol from the ABE Mixture: Effect of Intensification on the Dynamic Behavior

Process intensification is a strategy that has reduced costs and equipment while improving on the energy efficiency, safety, and environmental impact of processes. There is a widespread belief in the community that a more intensified process is better; however, the higher the level of process intensification, the more complex its operation becomes. In this paper, we will evaluate how the degree of intensification and the position of the intensification equipment affect the control dynamics. As a case study, the separation of butanol from the acetone–butanol–ethanol (ABE) mixture has been considered due to the thermodynamic complexity of the mixture and the several intensification alternatives that the process can have. On the one hand, the results indicate that the most intensified equipment is not necessarily the best alternative from the operation and control point of view. On the other hand, a strong impact of the location of the intensified equipment on controllability is observed. The configurations with the intensified equipment at the end of the separation were the alternatives with the best dynamic responses

Terapia com [177Lu – Dota0 – Tyr3]–Octreotate (177Lu-Dotatate) em Pacientes com Tumores Avançados de Origem Neuroendócrino: Experiência Inicial e Resultados Preliminares

Objetivo: mostrar la experiencia inicial y los resultados preliminares de la terapia con [177Lu – Dota0 – Tyr3] – Octreotate (177Lu-Dotatate) en pacientes tratados en la Fundación Cardioinfantil – Instituto de Cardiología (FCI-IC) debido a que la experiencia derivada de esta práctica en países latinoamericanos es poco conocida. Materiales y métodos: se realizó un análisis descriptivo y retrospectivo en pacientes a los que se les realizó terapia con 177Lu-Dotatate con al menos una dosis y un año de seguimiento. Se incluyeron 8 pacientes (4 mujeres y 4 hombres) de edad media: 57 años (50-63). Se administraron 24 dosis en total, 3 dosis en promedio por paciente, 187 GBq totales y 23,5 GBq dosis/paciente. Se valoró la respuesta al tratamiento y la presencia de efectos adversos. Resultados: el tiempo medio de seguimiento fue de 46 meses (26-72 meses). 5/8 pacientes tenían diagnóstico de tumores neuroendocrinos (tne) de origen pancreático, 2/8 de origen gástrico y 1/8 de yeyuno. 7/8 pacientes tenían compromiso metastásico; 1/8, a pesar deno tener afectación metastásica, fue considerado irresecable. 7/8 pacientes presentaron síntomas posterapia leves y 1/8 eventos adversos serios. 2/8 pacientes tuvieron respuesta parcial, 4/8 enfermedad estable y 2/8 respuesta completa. Sin embargo, al  nal del seguimiento un paciente que tuvo respuesta completa presentó recaída y otro, respuesta parcial con posterior progresión y muerte. Conclusiones: en la institución, la terapia con 177Lu-Dotatate ha sido segura y eficaz en pacientes con TNE como alternativa terapéutica con adecuados niveles de respuesta y control de la enfermedad con eventos adversos leves, esperables y eventos serios mínimos autolimitados.Objetivo: mostrar a experiência inicial e os resultados preliminares da terapia com [177Lu – Dota0 – Tyr3] –Octreotate (177Lu-Dotatate) em pacientes tratados na nossa instituição, devido a que a experiência derivada desta prática em países latino-americanos é pouco conhecida. Materiais e métodos: se realizou uma análise descritiva e retrospectiva em pacientes aos que se lhes tem realizado terapia com 177Lu-Dotatate com ao menos uma dose e ao menos um ano de seguimento. Incluíram-se 8 pacientes, idade média de 57 anos (50-63). Administraram-se: 24 doses em total, 3 doses em média por paciente, 187 GBq totais administrados e 23.5 GBq doses/paciente. Valorou-se a resposta ao tratamento e a presença de efeitos adversos. Resultados: o tempo médio de segui- mento foi de 45 meses (26-72 meses). 5/8 tinham diagnóstico de tne de origem pancreática, 2/8 de origem gástrica e 1/8 de jejuno. 7/8 pacientes tinham compromisso metastático e 1/8 paciente apesar de não ter afetação metastática foi considerado irressecável. 6/8 pacientes apresentaram sintomas pós-terapia leves e 1/8 eventos adversos sérios. 2/8 pacientes tiveram resposta parcial, 4/4 doença estável e 2/8 resposta completa. No entanto, no nal do seguimento um paciente que teve resposta completa apresentou recaída e outro resposta parcial com posterior progressão e morte. Conclusões: no nosso meio a terapia com 177Lu-Dotatate tem sido segura e e caz em pacientes com tne como alternativa terapêutica com adequados níveis de resposta e controle da doença com eventos adversos leves esperáveis e eventos sérios mínimos autolimitados.Objective: To Show the initial experience and preliminary results of therapy with [177Lu-Dota0- Tyr3] - Octreotate (177 Lu-Dotatate) in patients with neuroendocrine tumors (net) treated in our institution, because the experience gained from this practice in Latin American countries is poorly known. Materials and methods: A descriptive and retrospective analysis in patients who have undergone therapy with 177 Lu-Dotatate with at least one dose and at least one year of follow-up was performed. 8 patients (4 women and 4 men) with a mean age of 57 years (50-63) were included. A total of 24 doses were given, an average of 3 doses per patient. A total of 187 GBq were administered, equivalent to 23.5 GBq / patient. Response to therapy and the presence of adverse short and longterm effects were assessed. Results: The average follow-up time was 46 months (26-72 months). 5/8 patients were diagnosed with a pancreatic net, 2/8 of gastric origin and 1/8 of small bowel origin. 7/8 patients had metastatic involvement and 1/8 patient despite not having metastasis was considered unresectable. 6/8 patients had mild post-therapy symptoms and 1/8 serious adverse events. 2/8 patients had a partial response, 4/8 stable disease and 2/8 had a complete response. At the end of follow-up, however, one patient who had a complete response presented with recurrence and one with partial response showed progression and death. Conclusions: In our experience, therapy with 177 Lu-Dotatate was safe and effective in patients with a net as an alternative therapy with appropriate levels of response and disease control and with mild expected adverse events and self-limiting minimum serious events

Mortality and relapse after conservative surgery in breast cancer patients

El tratamiento quirúrgico del cáncer de mama ha evolucionado, desde cirugías radicales que incluían la pared torácica hasta cirugías conservadoras de resección tumoral con margen oncológico seguro complementadas con radioterapia; estas se consideran alternativa a la cirugía radical. La supervivencia es similar en ambos procedimientos. Metodología: Estudio de cohorte retrospectivo que evaluó las características demográficas, patológicas y desenlaces clínicos, como recaída y mortalidad, en mujeres con cáncer invasivo, sometidas a cirugía conservadora entre 1998 y 2007 en el INC. Resultados: Se incluyeron 358 pacientes con edad promedio de 53 anos y estados tumora- ˜ les tempranos en su mayoría. Con mediana de seguimiento de cuatro anos se presentaron 40 ˜ recaídas entre locales, regionales y sistémicas con una tasa de recaída de 2,6 recaídas por 100 pacientes/ano. Se presentó un mayor porcentaje de recaídas en estado clínico avanzado ˜ (p=0,022), tamano tumoral mayor de 2 centímetros (p=0,02 ˜ ) y a mayor número de ganglios comprometidos en el vaciamiento axilar (p=0,004). La tasa de mortalidad fue 1,2 muertes por 100 pacientes/ano. Los márgenes positivos se relacionaron con estado clínico avanzado (p=0,010) ˜ y las pacientes con márgenes positivos que recibieron manejo no quirúrgico presentaron un porcentaje mayor de recaída, comparado con las llevadas a cirugía (p=0,023). Esta diferencia se conservó al comparar manejo quirúrgico con no quirúrgico en márgenes positivos invasivos (p=0,037). Conclusiones: El estado clínico avanzado, se relacionó con márgenes positivos y recaída tumoral. El compromiso ganglionar axilar y el manejo no quirúrgico de los márgenes positivos determinaron un mayor porcentaje de recaída.Surgical treatment for breast cancer has improved from radical surgery involving the chest wall, to conservative tumor resection surgery with oncologically safe margins. This latter, when supplemented with radiotherapy, is considered an alternative to radical surgery with similar survival for both procedures. Methodology: Retrospective observational study was performed to assess the clinical response in women older than 18 years with invasive cancer undergoing conservative surgery between 1998 and 2007. Results: A total 358 patients, with the majority in early tumor states were included for final revision. The mean age was 53 years. During a four year follow-up there were 40 local, regional and systemic relapses, with a progression rate of 2.6 relapses per 100 patients / year. There was a higher percentage of recurrence in advanced clinical status (P=.022), tumor size greater than 2 cm (P=.02), and greater number of lymph node involvement in the axillary clearance. Mortality rate was 1.2 deaths per 100 patients / year. Positive margins were associated with advanced clinical status (P=.010), and patients who received non-surgical management had a higher relapse rate compared with patients who had surgery (P=.023). This difference was maintained when comparing surgery with non-surgical management in invasive positive margins (P=.037). Conclusions: Advanced clinical stage was associated with positive margins and tumor relapse. Axillary lymph node involvement, and non-surgical management of surgical margins, resulted in a higher percentage of recurrence