title: Hydraulic responses of whole vines and individual roots of kiwifruit (Actinidia chinensis) following root severance

authors: Black, Marykate Z.

subjects: Actinidia

abstract: Whole vine (Kplant) and individual root (Kroot) hydraulic conductances were measured in kiwifruit (Actinidia chinensis Planch. var. chinensis ‘Hort16A’) vines to observe hydraulic responses following partial root system excision. Heat dissipation and compensation heat pulse techniques were used to measure sap flow in trunks and individual roots, respectively. Sap flux and measurements of xylem pressure potential (Ψ) were used to calculate Kplant and Kroot in vines with zero and ∼80% of roots severed. Whole vine transpiration (E), Ψ and Kplant were significantly reduced within 24 h of root pruning, and did not recover within 6 weeks. Sap flux in intact roots increased within 24 h of root pruning, driven by an increase in the pressure gradient between the soil and canopy and without any change in root hydraulic conductance. Photosynthesis (A) and stomatal conductance (gs) were reduced, without significant effects on leaf internal CO2 concentration (ci). Shoot growth rates were maintained; fruit growth and dry matter content were increased following pruning. The woody roots of kiwifruit did not demonstrate a rapid dynamic response to root system damage as has been observed previously in monocot seedlings. Increased sap flux in intact roots with no change in Kroot and only a moderate decline in shoot A suggests that under normal growing conditions root hydraulic conductance greatly exceeds requirements for adequate shoot hydration.

text: Hydraulic responses of whole vines and individual roots of kiwifruit (Actinidia chinensis) following root severance Whole vine (Kplant) and individual root (Kroot) hydraulic conductances were measured in kiwifruit (Actinidia chinensis Planch. var. chinensis ‘Hort16A’) vines to observe hydraulic responses following partial root system excision. Heat dissipation and compensation heat pulse techniques were used to measure sap flow in trunks and individual roots, respectively. Sap flux and measurements of xylem pressure potential (Ψ) were used to calculate Kplant and Kroot in vines with zero and ∼80% of roots severed. Whole vine transpiration (E), Ψ and Kplant were significantly reduced within 24 h of root pruning, and did not recover within 6 weeks. Sap flux in intact roots increased within 24 h of root pruning, driven by an increase in the pressure gradient between the soil and canopy and without any change in root hydraulic conductance. Photosynthesis (A) and stomatal conductance (gs) were reduced, without significant effects on leaf internal CO2 concentration (ci). Shoot growth rates were maintained; fruit growth and dry matter content were increased following pruning. The woody roots of kiwifruit did not demonstrate a rapid dynamic response to root system damage as has been observed previously in monocot seedlings. Increased sap flux in intact roots with no change in Kroot and only a moderate decline in shoot A suggests that under normal growing conditions root hydraulic conductance greatly exceeds requirements for adequate shoot hydration.

year: 2011

title: Human capital, higher education and graduate migration: An analysis of Scottish and Welsh students

authors: Faggian, Alessandra

subjects: migration behaviour

abstract: This paper reports on a model of the sequential migration behaviour of some 76 000 Scottish and Welsh students, from their domicile location to the location of their higher education and on to their employment location. A logit model methodology is employed to analyse the choice of the location of the university attended, whether inside or outside Scotland or Wales. Then, within a GIS framework, migration-on-migration correlations and elasticities are estimated in order to identify the mobility effects of human capital acquisition. The results confirm the DaVanzo hypothesis that subsequent migration is related to previous migration and also the Sjaastad—Becker hypothesis that higher human capital individuals are more geographically mobile. However, there are institutional differences between the two countries which mean that the mobility effects of human capital acquisition have to be interpreted carefully in the light of other economic, geographical and social influences.

text: Human capital, higher education and graduate migration: An analysis of Scottish and Welsh students This paper reports on a model of the sequential migration behaviour of some 76 000 Scottish and Welsh students, from their domicile location to the location of their higher education and on to their employment location. A logit model methodology is employed to analyse the choice of the location of the university attended, whether inside or outside Scotland or Wales. Then, within a GIS framework, migration-on-migration correlations and elasticities are estimated in order to identify the mobility effects of human capital acquisition. The results confirm the DaVanzo hypothesis that subsequent migration is related to previous migration and also the Sjaastad—Becker hypothesis that higher human capital individuals are more geographically mobile. However, there are institutional differences between the two countries which mean that the mobility effects of human capital acquisition have to be interpreted carefully in the light of other economic, geographical and social influences.

year: 2007

title: Barriers and facilitators of access to psychological services for indigenous populations: A scoping review and thematic analysis

authors: Plessas, Anna

abstract: Background:
The extent to which behavior-analytic interventions are offered to Indigenous populations across CANZUS in accessible and culturally appropriate ways is unknown. We conducted a scoping review with a thematic analysis of the extant literature to find: (1) what are the barriers and facilitators for providing effective and equitable delivery of psychological services (with a behavioral component) to Indigenous populations; and (2) what tools and practices exist for an effective and equitable service delivery.
Methods:
We systematically reviewed Medline, CINAHL, PubMed, PsycInfo, Web of science, Ovid and INNZ databases between 1990 and 2020. For the scoping review, we adhered to the JBI methodological approach (2015) and the PRISMA strategy for the identification, selection, and appraisal of the reviewed articles. A total of 1265 unique articles met the criteria for the screening by title; 238 by abstract; 57 were included for full text assessment; and 37 were included in the final analysis.
Results:
Three themes were revealed to account for the barriers and facilitators of culturally friendly practices: (1) connecting practices are about interactions shaping the relationship between service provider and service client; (2) innovative practices test new approaches and innovations that could facilitate access to psychological services and overcome barriers, and (3) reflective practices are about critically examining the processes and actions undertaken toward effective cultural adaptation of services.
Conclusions:
Our analysis suggests that the level of success in bringing together services and the recipients of treatment (connection), showing flexibility and persistence in finding solutions (innovation) and examining the role of our behaviors in reaching our goals (reflection) is determined by the providers' action in the aforementioned three dimensions of practice.

text: Barriers and facilitators of access to psychological services for indigenous populations: A scoping review and thematic analysis Background:
The extent to which behavior-analytic interventions are offered to Indigenous populations across CANZUS in accessible and culturally appropriate ways is unknown. We conducted a scoping review with a thematic analysis of the extant literature to find: (1) what are the barriers and facilitators for providing effective and equitable delivery of psychological services (with a behavioral component) to Indigenous populations; and (2) what tools and practices exist for an effective and equitable service delivery.
Methods:
We systematically reviewed Medline, CINAHL, PubMed, PsycInfo, Web of science, Ovid and INNZ databases between 1990 and 2020. For the scoping review, we adhered to the JBI methodological approach (2015) and the PRISMA strategy for the identification, selection, and appraisal of the reviewed articles. A total of 1265 unique articles met the criteria for the screening by title; 238 by abstract; 57 were included for full text assessment; and 37 were included in the final analysis.
Results:
Three themes were revealed to account for the barriers and facilitators of culturally friendly practices: (1) connecting practices are about interactions shaping the relationship between service provider and service client; (2) innovative practices test new approaches and innovations that could facilitate access to psychological services and overcome barriers, and (3) reflective practices are about critically examining the processes and actions undertaken toward effective cultural adaptation of services.
Conclusions:
Our analysis suggests that the level of success in bringing together services and the recipients of treatment (connection), showing flexibility and persistence in finding solutions (innovation) and examining the role of our behaviors in reaching our goals (reflection) is determined by the providers' action in the aforementioned three dimensions of practice.

year: 2021