Child Language Brokering in School: Final Research Report

The primary aim of the project was to provide an evidence basis for more sensitive and effective practice and more carefully articulated school policies on the use of pupils as language brokers for their own parents and others in school. To this end we investigated and triangulated the views and experiences of two groups who we expected to bring distinctive and complementary perspectives to the topic - teachers in schools in multilingual areas and young adults who had acted as language brokers in the course of their own school career (ex-CLBs ). The study addressed the following research questions in relation to both groups: 1. How often and for what purposes are CLBs used in schools? 2. To what degree are CLBs used in routine contacts with parents (their own & those of others), in more sensitive discussions about vulnerable pupils (e.g. about SEN) and in discussions when crucial matters are being resolved (e.g. planning for subject choices in Year 10)? 3. What are the perceived advantages and disadvantages of school language brokering arrangements? 4. How do teachers and ex-CLBs perceive CLBs in terms of their alignment with family or personal interests as against detached, independent values of translation and interpreting? 5. What views do ex-CLBs now have of their experience of the process, their own agency, competence and effectiveness and how the process was facilitated or obstructed by the actions and attitudes of their teachers? 6. What differences of view and understanding are there between teachers who are themselves bilingual or multilingual, teachers who are monolingual and ex-CLBs? 7. What recommendations would current teachers and ex-CLBs make on how to improve schools? policies and practices on CLB activity

Child Language Brokering in School: Final Research Report

The primary aim of the project was to provide an evidence basis for more sensitive and effective practice and more carefully articulated school policies on the use of pupils as language brokers for their own parents and others in school. To this end we investigated and triangulated the views and experiences of two groups who we expected to bring distinctive and complementary perspectives to the topic - teachers in schools in multilingual areas and young adults who had acted as language brokers in the course of their own school career (ex-CLBs ). The study addressed the following research questions in relation to both groups: 1. How often and for what purposes are CLBs used in schools? 2. To what degree are CLBs used in routine contacts with parents (their own & those of others), in more sensitive discussions about vulnerable pupils (e.g. about SEN) and in discussions when crucial matters are being resolved (e.g. planning for subject choices in Year 10)? 3. What are the perceived advantages and disadvantages of school language brokering arrangements? 4. How do teachers and ex-CLBs perceive CLBs in terms of their alignment with family or personal interests as against detached, independent values of translation and interpreting? 5. What views do ex-CLBs now have of their experience of the process, their own agency, competence and effectiveness and how the process was facilitated or obstructed by the actions and attitudes of their teachers? 6. What differences of view and understanding are there between teachers who are themselves bilingual or multilingual, teachers who are monolingual and ex-CLBs? 7. What recommendations would current teachers and ex-CLBs make on how to improve schools? policies and practices on CLB activity

Mathematical analysis of a model for the growth of the bovine corpus luteum

The corpus luteum (CL) is an ovarian tissue that grows in the wound space created by follicular rupture. It produces the progesterone needed in the uterus to maintain pregnancy. Rapid growth of the CL and progesterone transport to the uterus require angiogenesis, the creation of new blood vessels from pre-existing ones, a process which is regulated by proteins that include fibroblast growth factor 2 (FGF2).\ud \ud In this paper we develop a system of time-dependent ordinary differential equations to model CL growth. The dependent variables represent FGF2, endothelial cells (ECs), luteal cells, and stromal cells (like pericytes), by assuming that the CL volume is a continuum of the three cell types. We assume that if the CL volume exceeds that of the ovulated follicle, then growth is inhibited. This threshold volume partitions the system dynamics into two regimes, so that the model may be classified as a Filippov (piecewise smooth) system.\ud \ud We show that normal CL growth requires an appropriate balance between the growth rates of luteal and stromal cells. We investigate how angiogenesis influences CL growth by considering how the system dynamics depend on the dimensionless EC proliferation rate, p5. We find that weak (low p5) or strong (high p5) angiogenesis leads to ‘pathological’ CL growth, since the loss of CL constituents compromises progesterone production or delivery. However, for intermediate values of p5, normal CL growth is predicted. The implications of these results for cow fertility are also discussed. For example, inadequate angiogenesis has been linked to infertility in dairy cows

Stories too big for a case file: Unaccompanied young people confront the hostile environment in pandemic times

It is never easy nor comfortable to turn rich and textured research conversations about people’s lives into a brief article or a short film. In putting together our contribution for this special issue, we asked ourselves: What imagery best evokes the violence unaccompanied children and young people feel when asked, or made, to tell their story over and over – to the Home Office, solicitors, social workers, and more, as well as the violence of not being asked nor being heard? How can we show both strength and struggle in difficult times (a global pandemic) and often uncaring places (the UK’s hostile migration regime)? In what follows we discuss our ethical, political, and intellectual responses to these questions in relation to the film this text accompanies: Stories too big for a case file

Mathematical analysis of a model for the growth of the bovine corpus luteum.

The corpus luteum (CL) is an ovarian tissue that grows in the wound space created by follicular rupture. It produces the progesterone needed in the uterus to maintain pregnancy. Rapid growth of the CL and progesterone transport to the uterus require angiogenesis, the creation of new blood vessels from pre-existing ones, a process which is regulated by proteins that include fibroblast growth factor 2 (FGF2). In this paper we develop a system of time-dependent ordinary differential equations to model CL growth. The dependent variables represent FGF2, endothelial cells (ECs), luteal cells, and stromal cells (like pericytes), by assuming that the CL volume is a continuum of the three cell types. We assume that if the CL volume exceeds that of the ovulated follicle, then growth is inhibited. This threshold volume partitions the system dynamics into two regimes, so that the model may be classified as a Filippov (piecewise smooth) system. We show that normal CL growth requires an appropriate balance between the growth rates of luteal and stromal cells. We investigate how angiogenesis influences CL growth by considering how the system dynamics depend on the dimensionless EC proliferation rate, ρ₅. We find that weak (low ρ₅) or strong (high ρ₅) angiogenesis leads to 'pathological' CL growth, since the loss of CL constituents compromises progesterone production or delivery. However, for intermediate values of ρ₅, normal CL growth is predicted. The implications of these results for cow fertility are also discussed. For example, inadequate angiogenesis has been linked to infertility in dairy cows

The path towards a professional identity: An IPA study of Greek family therapy trainees

Objective: Contemporary psychotherapy research has focused mainly on practitioners' training and education. The impact of training on professional development and the application of therapeutic skills have been the primary foci of the empirical literature. The aim of this paper is to present the experiences of seven family therapy trainees regarding their personal paths toward the development of professional identity as they underwent training in systemic psychotherapy. Method: In-depth interviews were conducted and analysed using Interpretative Phenomenological Analysis. Results & Conclusions: Seven themes were identified: The Quest, Developing by Relating, Learnings, Personification of Training, Use of Self, Self-Care and Empowerment, and Reflecting on the Role of the Therapist. The findings are discussed with regard to the development of the 'therapist as a person', gaining acknowledgement and autonomy, and the development of a community of therapeutic practice. © 2013 British Association for Counselling and Psychotherapy

Changes in the Isotopic Signature of Atmospheric Nitrous Oxide and Its Global Average Source During the Last Three Millennia

Nitrous oxide (N2O) is a strong greenhouse gas whose mole fraction in the atmosphere has increased over the industrial period. We present a new set of isotope measurements of N2O in air extracted from ice cores covering the last 3,000 years. For the preindustrial (PI) atmosphere, we find an average N2O mole fraction of (267 ± 1) nmol/mol and average tropospheric N2O isotopic values of δ15Nav PI = (9.5 ± 0.1)‰, δ18OPI = (47.1 ± 0.2)‰, δ15Nα PI = (17.8 ± 0.4)‰, and δ15Νβ PI = (1.2 ± 0.4)‰. From PI to modern times all isotope signatures decreased with a total change of δ15Nav = (−2.7 ± 0.2)‰, δ18O = (−2.5 ± 0.4)‰, δ15Nα = (−2.0 ± 0.7)‰, and δ15Νβ (−3.5 ± 0.7)‰. Interestingly, the temporal evolution is not the same for δ15Nav and δ18O. δ18O trends are relatively larger during the early part, and δ15Nav trends are larger during the late part of the industrial period, implying a decoupling of sources over the industrial period. Using a mass balance model, we determined the isotopic composition of the total average N2O source. Assuming that the total present source is the sum of a constant natural source and an increasing anthropogenic source, this anthropogenic source has an isotopic signature of δ15Nav source,anthrop = (−15.0 ± 2.6)‰, δ18Osource,anthrop = (30.0 ± 2.6)‰, δ15Nα source,anthrop = (−4.5 ± 1.7)‰, and δ15Nβ source,anthrop = (−24.0 ± 8.4)‰. The 15N site preference of the source has increased since PI times, which is indicative of a relative shift from denitrification to nitrification sources, consistent with agricultural emissions playing a major role in the N2O increase.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Constraining N2O emissions since 1940 using firn air isotope measurements in both hemispheres

N2O is currently the third most important anthropogenic greenhouse gas in terms of radiative forcing and its atmospheric mole fraction is rising steadily. To quantify the growth rate and its causes over the past decades, we performed a multi-site reconstruction of the atmospheric N2O mole fraction and isotopic composition using new and previously published firn air data collected from Greenland and Antarctica in combination with a firn diffusion and densification model. The multi-site reconstruction showed that while the global mean N2O mole fraction increased from (290±1)nmolmol-1 in 1940 to (322±1)nmolmol-1 in 2008, the isotopic composition of atmospheric N2O decreased by (-2.2±0.2)% for δ15Nav, (-1.0±0.3)% for δ18O, (-1.3±0.6)% for δ15Nα, and (-2.8±0.6)% for δ15Nβ over the same period. The detailed temporal evolution of the mole fraction and isotopic composition derived from the firn air model was then used in a two-box atmospheric model (comprising a stratospheric box and a tropospheric box) to infer changes in the isotopic source signature over time. The precise value of the source strength depends on the choice of the N2O lifetime, which we choose to fix at 123 years. The average isotopic composition over the investigated period is δ15Nav Combining double low line (-7.6±0.8)% (vs. air-N2), δ18O Combining double low line (32.2±0.2)% (vs. Vienna Standard Mean Ocean Water-VSMOW) for δ18O, δ15Nα Combining double low line (-3.0±1.9)% and δ15Nβ Combining double low line (-11.7±2.3)%. δ15Nav, and δ15Nβ show some temporal variability, while for the other signatures the error bars of the reconstruction are too large to retrieve reliable temporal changes. Possible processes that may explain trends in 15N are discussed. The 15N site preference (Combining double low line δ15Nα-δ15Nβ) provides evidence of a shift in emissions from denitrification to nitrification, although the uncertainty envelopes are large

Mathematical models for immunology:current state of the art and future research directions

The advances in genetics and biochemistry that have taken place over the last 10 years led to significant advances in experimental and clinical immunology. In turn, this has led to the development of new mathematical models to investigate qualitatively and quantitatively various open questions in immunology. In this study we present a review of some research areas in mathematical immunology that evolved over the last 10 years. To this end, we take a step-by-step approach in discussing a range of models derived to study the dynamics of both the innate and immune responses at the molecular, cellular and tissue scales. To emphasise the use of mathematics in modelling in this area, we also review some of the mathematical tools used to investigate these models. Finally, we discuss some future trends in both experimental immunology and mathematical immunology for the upcoming years