RESUMO DE TESE: ALGAS CULTIVATION, CHARACTERIZATION AND PROCESSING TECHNIQUES

Sperm retrieval techniques in azoospermic patients: PESA, MESA, TESA, TESE and MICROTESE Técnicas de recuperação de espermatozoides em pacientes azoospérmicos: PESA, MESA, TESA, TESE e MICROTESE

Received on: April 28, 2009 – Accepted on: Oct 15, 2009 aBstRact Azoospermia is defined as the absence of mature spermatozoa in semen analysis after centrifugation. The causes of azoospermia may be related to spermatogenesis defects and classified as nonobstructive azoospermia, or to the obstruction of the efferent ducts of the genital tract and classified as obstructive azoospermia. Before the...

Cultivation Techniques

UWB Impulse Radar Characterization and Processing Techniques

Ultra-Wideband (UWB) impulse radar is inherently a noise-limited technology. While subnanosecond pulses achieve good range resolution, the resultant extreme bandwidth exacts a toll on system performance in terms of noise power entering the receiver. Data must be processed efficiently to yield an acceptable signal to noise ratio (SNR), and to enhance structural details of the return pulse. This ...

Tecnologia De Informação E Mudança : Uma Abordagem Crítica Resumo

This article critically analyzes the purely “tecnicist” and instrumental perspective that prevails in the information technology (IT) literature. The adaptive changes are differentiated from the paradigmatic changes, and the changes enabled by the IT are restricted to the efforts to improve the organization performance still within the dominant paradigm. Within the adaptive changes facilitated ...

Doença de Parkinson: neuroimagem do transportador de dopamina em casos de dúvida diagnóstica (Resumo)

Introduction: Misdiagnosis in Parkinson’s disease (PD) can reach 25%. Recently, single-photon emission computer tomography (SPECT), using dopamine transporter (DAT) radioligands, has become useful to help diagnose clinically unclear cases of Parkinsonism (CUCP). Objectives: Study 1 reported the rationale of molecular imaging in CUCP. Study 2 evaluated the role of DAT neuroimaging in CUCP. Study...