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Long-term full-thickness embryonic rabbit retinal transplants

PURPOSE: To establish the light and electron microscopic morphology of long-term full-thickness embryonic rabbit retinal transplants, with special attention paid to graft- host integration.METHODS: Eighteen rabbits received a complete embryonic neuroretina 19 days after conception. The transplants were positioned under the host retina, flat against the host retinal pigment epithelium with proper p

Partial and full-thickness neuroretinal transplants

Adult and embryonic rabbit retinal sheets were transplanted into the subretinal space of adult rabbits. The transplants were either full-thickness with intact layering, or gelatin embedded and vibratome sectioned with the inner retina removed. The full-thickness grafts were positioned subretinally by means of a glass capillary in which they were partially folded. The vibratome sectioned ones were

Transplant of full-thickness embryonic rabbit retina using pars plana vitrectomy

PURPOSE: To develop an improved surgical technique making full-thickness retinal transplant possible, thereby achieving a normal laminated transplant with minimal rosette formation.METHODS: A total of 23 rabbits underwent vitrectomy, retinotomy, and subsequent subretinal transplant of a complete embryonic neuroretina using a specially crafted glass cannula. Of the 23 animals, 15 received a prenata

Minding Equality: Compulsory Mental Health Interventions and the CRPD : Compulsory Mental Health Interventions and the CRPD

This study delineates the permissible scope for compulsory mental health interventions under the Convention on the Rights of Persons with Disabilities (CRPD). It was initially triggered by two competing positions within the current debate over the future of coercive psychiatry; a practice that is still omnipresent among states worldwide. According to one position, defended by the CRPD Committee amThis study delineates the permissible scope for compulsory mental health interventions under the Convention on the Rights of Persons with Disabilities (CRPD). It was initially triggered by two competing positions within the current debate over the future of coercive psychiatry; a practice that is still omnipresent among states worldwide. According to one position, defended by the CRPD Committee am

Between Sumud and Submission : Palestinian Popular Practices on the Land in the Edge Areas of Jerusalem

This thesis delves into two ‘edge areas’ located in and around East Jerusalem. It attempts to unfold and analyze the dynamics in these edge areas, while investigating the agency of the people present there through their own perceptions and practices towards the land, the urbanization processes, the power circulation and the structural impositions. Squeezed by a settler-colonial domination that con

Effectiveness and Usability of a Web-Based Mindfulness Intervention for Families Living with Mental Illness

Families living with mental illness express needs of support and experiences of burden that may affect their own health detrimentally and hence also their ability to support the patient. Mindfulness-based interventions have shown beneficial health effects in both clinical and healthy populations. The aim of the current study was to explore the effectiveness and usability of a web-based mindfulness

Seasonal variability in Northern Hemisphere atmospheric circulation during the Medieval Climate Anomaly and the Little Ice Age

Here we report new reconstructions of winter temperature and summer moisture during the past millennium in southeastern Sweden, based on stable-isotope data from a composite tree-ring sequence, that further enhances our knowledge and understanding of seasonal climate variability in the Northern Hemisphere over the past millennium. Key features of these new climate proxy records include evidence fo

Ravens remember the nature of a single reciprocal interaction sequence over 2 days and even after a month

To explain reciprocity, direct or indirect, several proximate mechanisms have been proposed, yet little attention has been given to the specific underlying cognitive mechanisms. Regardless of what proximate rules underlie reciprocity, some kind of memory would be paramount. Corvids in general, and ravens, Corvus corax, specifically, have been shown to possess an array of sophisticated cognitive me

The trapping of organic matter within plant patches in the channels of the Okavango Delta : a matter of quality

The role of in-stream aquatic vegetation as ecosystem engineers in the distribution of organic matter was investigated in the Okavango Delta, one of the world’s largest oligotrophic wetlands. The Okavango channel beds are covered up to 50% with submerged macrophyte patches. By accumulating and concentrating organic matter in the sediments below the patches, macrophytes are likely able to locally f