title: Diversity and Distributional Patterns of Ciliates in Guaymas Basin Hydrothermal Vent Sediments

authors: Coyne, Kathryn J.

subjects: Anoxic

abstract: Little is known about protists at deep-sea hydrothermal vents. The vent sites at Guaymas Basin in the Gulf of California are characterized by dense mats of filamentous pigmented or nonpigmented Beggiatoa that serve as markers of subsurface thermochemical gradients. We constructed 18S rRNA libraries to investigate ciliate assemblages in Beggiatoa mats and from bare sediments at the Guaymas vent site. Results indicated a high diversity of ciliates, with 156 operational taxonomic units identified in 548 sequences. Comparison between mat environments demonstrated that ciliate and bacterial assemblages from pigmented mats, nonpigmented mats, and bare sediments were significantly different and highly correlated with bacterial assemblages. Neither bacterial nor ciliate assemblages were correlated with environmental factors. The most abundant ciliates at Guaymas were more likely to be represented in clone libraries from other hydrothermal, deep-sea, and/or anoxic or microaerophilic environments, supporting the hypothesis that these ciliate species are broadly distributed. The orange mat environment included a higher proportion of ciliate sequences that were more similar to those from other environmental studies than to cultured ciliate species, whereas clone libraries from bare sediments included sequences that were the most highly divergent from all other sequences and may represent species that are endemic to Guaymas.

text: Diversity and Distributional Patterns of Ciliates in Guaymas Basin Hydrothermal Vent Sediments Little is known about protists at deep-sea hydrothermal vents. The vent sites at Guaymas Basin in the Gulf of California are characterized by dense mats of filamentous pigmented or nonpigmented Beggiatoa that serve as markers of subsurface thermochemical gradients. We constructed 18S rRNA libraries to investigate ciliate assemblages in Beggiatoa mats and from bare sediments at the Guaymas vent site. Results indicated a high diversity of ciliates, with 156 operational taxonomic units identified in 548 sequences. Comparison between mat environments demonstrated that ciliate and bacterial assemblages from pigmented mats, nonpigmented mats, and bare sediments were significantly different and highly correlated with bacterial assemblages. Neither bacterial nor ciliate assemblages were correlated with environmental factors. The most abundant ciliates at Guaymas were more likely to be represented in clone libraries from other hydrothermal, deep-sea, and/or anoxic or microaerophilic environments, supporting the hypothesis that these ciliate species are broadly distributed. The orange mat environment included a higher proportion of ciliate sequences that were more similar to those from other environmental studies than to cultured ciliate species, whereas clone libraries from bare sediments included sequences that were the most highly divergent from all other sequences and may represent species that are endemic to Guaymas.

year: 2013

title: A mosaic of visions, daydreams, and memories: diverse inlays of organizing and communicating from around the globe

authors: Broadfoot, Kirsten J.

subjects: organizing

abstract: This collaboratively multiauthored essay presents diverse tales of organizing and communicative practices in our global context. Authors from India, Nepal, Aotearoa New Zealand, Australia, Brazil, the United States, and Nigeria present individual contributions that coalesce around three clear thematic concerns regarding issues of organizing and communicating: (1) silence and voice, (2) the limits and consequences of linguistic and theoretical translations, and (3) the communal considerations of research politics and participation. The essay concludes with communal reflections on how it is that in attempting to engage with diversity we begin to see remarkable similarities not only in expressing a desire to be heard but also in making a commitment to let others be heard, not only in breaking boundaries and building alliances but also in moving towards a collective, inclusive, and participative conceptualization of the myriad shapes of organizing and communicating that exist in the contemporary global context.

text: A mosaic of visions, daydreams, and memories: diverse inlays of organizing and communicating from around the globe This collaboratively multiauthored essay presents diverse tales of organizing and communicative practices in our global context. Authors from India, Nepal, Aotearoa New Zealand, Australia, Brazil, the United States, and Nigeria present individual contributions that coalesce around three clear thematic concerns regarding issues of organizing and communicating: (1) silence and voice, (2) the limits and consequences of linguistic and theoretical translations, and (3) the communal considerations of research politics and participation. The essay concludes with communal reflections on how it is that in attempting to engage with diversity we begin to see remarkable similarities not only in expressing a desire to be heard but also in making a commitment to let others be heard, not only in breaking boundaries and building alliances but also in moving towards a collective, inclusive, and participative conceptualization of the myriad shapes of organizing and communicating that exist in the contemporary global context.

year: 2008

title: Whānau Māori explain how the Harti Hauora Tamariki tool assists better access to health services

authors: Masters-Awatere, Bridgette

abstract: In this paper whānau Māori highlight how a Kaupapa Māori centred intervention (the Harti Hauora Tamariki tool) has improved interactions with health services. The Harti tool is undergoing a Randomised Control Trial at Waikato Hospital in New Zealand. As part of the RCT, the authors engaged in a series of qualitative interviews with whānau members of tamariki Māori (children aged 0-5years) admitted to Waikato Hospital’s paediatric ward. Whānau who met at least one criteria for New Zealand’s domains of deprivation were included. Using a Kaupapa Māori approach to the study, participants shared their views on barriers and facilitators to accessing health resources and primary care services. Our interviews highlight how the Harti tool, when administered in a culturally appropriate and respectful manner that prioritised relationship-building, enabled better connection to healthcare services. Prevalent in our analysis were connections to wider determinants of health and ways to reduce existing health inequities. To conclude the paper, we highlight how the tool has enhanced feelings of being in control of health with the potential to reduce the likelihood of a hospital readmission.

text: Whānau Māori explain how the Harti Hauora Tamariki tool assists better access to health services In this paper whānau Māori highlight how a Kaupapa Māori centred intervention (the Harti Hauora Tamariki tool) has improved interactions with health services. The Harti tool is undergoing a Randomised Control Trial at Waikato Hospital in New Zealand. As part of the RCT, the authors engaged in a series of qualitative interviews with whānau members of tamariki Māori (children aged 0-5years) admitted to Waikato Hospital’s paediatric ward. Whānau who met at least one criteria for New Zealand’s domains of deprivation were included. Using a Kaupapa Māori approach to the study, participants shared their views on barriers and facilitators to accessing health resources and primary care services. Our interviews highlight how the Harti tool, when administered in a culturally appropriate and respectful manner that prioritised relationship-building, enabled better connection to healthcare services. Prevalent in our analysis were connections to wider determinants of health and ways to reduce existing health inequities. To conclude the paper, we highlight how the tool has enhanced feelings of being in control of health with the potential to reduce the likelihood of a hospital readmission.

year: 2019