647 resultados para Embryo Culture Techniques


Relevância:

20.00% 20.00%

Publicador:

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This project is a two phase design working in partnership with five universities to develop, implement and systematically embed a distributive leadership model that aims to embed peer partnership (review, development) within the culture of teaching and learning excellence. This presentation will posit a ‘prototype’ peer review leadership model based on ongoing research that brings together both the fundamentals of peer review with the broader importance of context and persons. It will be argued that essential to teaching development is a need to address not only the implementation of peer partnership programs but also strategies to influence and change both the contexts of teaching and the advantages for colleagues. Peer review as a strategy to develop excellence in teaching needs to be considered from a holistic perspective encompassing all elements of the teaching environment. The emphasis is on working to foster the type of conditions needed for leadership and change to begin and be sustained. The work has implications for policy, research, leadership development and student outcomes and has potential application world-wide. Phase 1 has collected focus interview and questionnaire data to inform the research and is being analysed using a thematic qualitative approach and statistical analysis Evidence is emerging currently as the project is ongoing

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Teaching is a core function of higher education and must be effective if it is to provide students with learning experiences that are stimulating, challenging and rewarding Obtaining feedback on teaching is indispensable to enhancing the quality of learning design, facilitating personal and/or professional development and maximising student learning outcomes. Peer review of teaching has the potential to improve the quality of teaching at tertiary level, by encouraging critical reflection on teaching, innovation in teaching practice and scholarship of teaching at all academic levels. However, embedding peer review within the culture of teaching and learning is a significant challenge that requires sustained commitment from senior leadership as well as those in leadership roles within local contexts.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This qualitative study explores the methods that chefs use to create innovative marketable product and compares these findings to other design tools. This study is based on a series of interviews with locally recognised chefs in Minnesota and observations of them in their kitchens in order to understand the details of how they conceive and develop dishes from preliminary concept to final plating and user consumption. This paper focuses on idea generation and discusses two key findings: first, the variety of idea generation techniques presented by the chefs can be classified into the creativity tool SCAMPER (substitute, combine, adapt, modify/magnify, put to other use, eliminate, reverse/rearrange); second, chefs evoke the theory of MAYA or Most Advanced Yet Acceptable when innovating new dishes, which implies making novel changes while remaining relatable to the consumer. Other reoccurring topics in the interview discussion of food innovation include play, surprise, and humour.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Over several decades, academics around the world have investigated the necessary tools, techniques, and conditions which would allow BIM (building information modeling) to become a positive force in the world of construction. As the research results matured, BIM started to become commercially available. Researchers and many in industry soon realized that BIM, as a technological innovation, was, in and of itself, not the end point in the journey. The technical adoption of BIM has to be supported by process and culture change within organizations to make a real impact on a project (for example, see AECbytes Viewpoint #35 by Chuck Eastman, Paul Teicholz, Rafael Sacks and Kathleen Liston). Current academic research aims to understand the steps beyond BIM, which will help chart the future of our industry over the coming decades. This article describes an international research effort in this area, coordinated by the Integrated Design and Delivery Solutions (IDDS) initiative of the CIB (International Council for Research and Innovation in Building and Construction). We hope that it responds to and extends the discussion initiated by Brian Lighthart in AECbytes Viewpoint #56, which asked about who is charting future BIM directions.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Involving the biopsy of an eight-cell embryo, PGD has been hailed as a means of making reproductive decisions without having to face the heart-wrenching decision to abort an affected foetus. However, controversy around the kinds of traits for which testing can be done, and who has access to the technology, has led to questions about the way in which the technology is developing. Women who are allowed to access in vitro fertilisation (IVF) services can currently also access PGD in limited circumstances.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The development of the new reproductive technologies has presented significant challenges for policy makers and law reformers. This article focuses on the particular challenges posed by cryopreservation of embryos. These issues are analysed through discussion of relevant Australian statutory provisions and United States case law. The article concludes with a consideration of whether the property model provides an appropriate framework for reproductive material.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Designing systems for multiple stakeholders requires frequent collaboration with multiple stakeholders from the start. In many cases at least some stakeholders lack a professional habit of formal modeling. We report observations from two case studies of stakeholder-involvement in early design where non-formal techniques supported strong collaboration resulting in deep understanding of requirements and of the feasibility of solutions.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In order to deal with human biological problems, life scientists have started investigating artificial ways of generating tissues and growing cells ? leading to the evolution of tissue engineering. In this paper we explore visualization practices of life scientists working within the domain of tissue engineering. We carried out a small scale ethnographic exploration with 8 scientists and explored that the real value of scientists' experiments (and simulations), reasoning and collaborative processes go beyond their end results. We observed that these scientists' three-dimensional reasoning, corporeal knowledge and intimacy with biological objects and tools play a vital role in overall success.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper will describe a community based research project examining the health and wellbeing of a sample of Aboriginal women in Australia, and present preliminary findings of a community needs analysis. The Shoalhaven Koori Women’s Study (SKWS) is being led by an Aboriginal woman based within Waminda, an Aboriginal women’s community controlled service located on the South Coast of NSW. The community needs analysis is the first stage of the SKWS, and aims to explore Aboriginal women’s perceptions and experiences of wellness and wellbeing, including issues related to their personal strengths, health and social priorities, support needs and that of their families. Thirty Aboriginal women were interviewed using a survey that included closed and open ended questions. Methods used to administer the survey included yarning and Dadirri (deep listening), two valid and culturally safe approaches for data collection with Aboriginal people. Adopting these approaches ensured Aboriginal protocols were maintained and upheld throughout the research process. This enabled scientific rigour while also ensuring activities were culturally safe. Key findings of the survey will be presented, and how Waminda is modifying service delivery to better respond to the health and social priorities of Aboriginal women in the Shoalhaven region will be discussed. Community feedback of survey results will occur to validate the analysis from the community perspective.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

As microenvironmental factors such as three-dimensionality and cell–matrix interactions are increasingly being acknowledged by cancer biologists, more complex 3D in vitro models are being developed to study tumorigenesis and cancer progression. To better understand the pathophysiology of bone metastasis, we have established and validated a 3D indirect co-culture model to investigate the paracrine interactions between prostate cancer (PCa) cells and human osteoblasts. Co-culture of the human PCa, LNCaP cells embedded within polyethylene glycol hydrogels with human osteoblasts in the form of a tissue engineered bone construct (TEB), resulted in reduced proliferation of LNCaP cells. LNCaP cells in both monoculture and co-culture were responsive to the androgen analog, R1881, as indicated by an increase in the expression (mRNA and/or protein induction) of androgen-regulated genes including prostate specific antigen and fatty acid synthase. Microarray gene expression analysis further revealed an up-regulation of bone markers and other genes associated with skeletal and vasculature development and a significant activation of transforming growth factor β1 downstream genes in LNCaP cells after co-culture with TEB. LNCaP cells co-cultured with TEB also unexpectedly showed similar changes in classical androgen-responsive genes under androgen-deprived conditions not seen in LNCaP monocultures. The molecular changes of LNCaP cells after co-culturing with TEBs suggest that osteoblasts exert a paracrine effect that may promote osteomimicry and modulate the expression of androgen-responsive genes in LNCaP cells. Taken together, we have presented a novel 3D in vitro model that allows the study of cellular and molecular changes occurring in PCa cells and osteoblasts that are relevant to metastatic colonization of bone. This unique in vitro model could also facilitate cancer biologists to dissect specific biological hypotheses via extensive genomic or proteomic assessments to further our understanding of the PCa-bone crosstalk.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

As the boundaries between public and private, human and technology, digital and social, mediated and natural, online and offline become increasingly blurred in modern techno-social hybrid societies, sociology as a discipline needs to adapt and adopt new ways of accounting for these digital cultures. In this paper I use the social networking site Pinterest to demonstrate how people today are shaped by, and in turn shape, the digital tools they are assembled with. Digital sociology is emerging as a sociological subdiscipline that engages with the convergence of the digital and the social. However, there seems to be a focus on developing new methods for studying digital social life, yet a neglect of concrete explorations of its culture. I argue for the need for critical socio-cultural ‘thick description’ to account for the interrelations between humans and technologies in modern digitally mediated cultures.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Rat testicular cells in culture produce several metalloproteinases including type IV collagenases (Sang et al. Biol Reprod 1990; 43:946-955, 956-964). We have now investigated the regulation of testicular cell type IV collagenase and other metalloprotemases in vitro. Soluble laminin stimulated Sertoli cell type IV collagenase mRNA levels. However, three peptides corresponding to different domains of the laminin molecule (CSRAKQAASIKVASADR, FALRGDNP, CLQDGDVRV) did not influence type IV collagenase mENA levels. Zyniographic analysis of medium collected from these cultures revealed that neither soluble laminin nor any of the peptides influenced 72-Wa type IV collagenase protein levels. However, peptide FALRGDNP resulted in both, a selective increase in two higher molecular-weight metalloprotemnases (83 kDa and 110 Wa and in an activation of the 72-Wa rat type IV collagenase. Interleukin-1, phorbol ester, testosterone, and FSH did not affect collagenase activation, lmmunocytochemical studies demonstrated that the addition of soluble laminin resulted in a redistribution of type IV collagenase from intracellular vesicles to the cell-substrate region beneath the cells. Peptide FALRGDNP induced a change from a vesicular to peripheral plasma membrane type of staining pattern. Zymography of plasma membrane preparations demonstrated triton-soluble gelatinases of 76 Wa, 83 Wa, and 110 Wa and a triton-insoluble gelatinase of 225 Wa, These results indicate that testicular cell type IV collagenase mRNA levels, enzyme activation, and distribution are influenced by laminin and RGD-containing peptides.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Bauxite refinery residues are derived from the Bayer process by the digestion of crushed bauxite in concentrated caustic at elevated temperatures. Chemically, it comprises, in varying amounts (depending upon the composition of the starting bauxite), oxides of iron and titanium, residual alumina, sodalite, silica, and minor quantities of other metal oxides. Bauxite residues are being neutralised by seawater in recent years to reduce the alkalinity in bauxite residue, through the precipitation of hydrotalcite-like compounds and some other Mg, Ca, and Al hydroxide and carbonate minerals. A combination of X-ray diffraction (XRD) and vibrational spectroscopy techniques, including mid-infrared (IR), Raman, near-infrared (NIR), and UV-Visible, have been used to characterise bauxite residue and seawater neutralised bauxite residue. Both the ferrous (Fe2+) and ferric (Fe3+) ions within bauxite residue can be identified by their characteristic NIR bands, where ferrous ions produce a strong absorption band at around 9000 cm-1, while ferric ions produce two strong bands at 25000 and 14300 cm-1. The presence of adsorbed carbonate and hydroxide anions can be identified at around 5200 and 7000 cm-1, respectively, attributed to the 2nd overtone of the 1st fundamental overtones observed in the mid-IR spectra. The complex bands in the Raman and mid-IR spectra around 3500 cm-1 are assigned to the OH stretching vibrations of the various oxides present in bauxite residue, and water. The combination of carbonate and hydroxyl units and their fundamental overtones give rise to many of the features of the NIR spectra.