An Investigation of Successful and Unsuccessful Communication between International and North African Social Workers at Centres for Disabled Children in North Africa

There is a need to improve the quality of life for disabled children in North Africa. Although local governments and communities have been providing social services support, an increase in social services investment, particularly, specialists who work in the area of providing disability support, is needed from local and international organisations. However, international social workers’ lack of cross cultural sensitivity creates communication barriers and prevents effective means of collaboration between international and local social workers. The main aim of this research is to identify culturally appropriate communication skills and possible pitfalls for international social workers by investigating successful and unsuccessful communication between international and local social workers working at schools and centres for disabled children in North Africa. A constructivist qualitative approach has been used to explore the complex world of lived experiences of the social workers. The stories of four international and three local social workers were gathered through semi structured in-depth interviews. Three main themes emerged as a result of analysis of the interviews: language and religious value, gender relations, shame and honour. The findings have shown that in order for international social workers to communicate culturally appropriately and achieve successful collaboration with local social workers, the international workers need to be aware of the differences in mind-sets between individualistic and collective cultures, and be sensitive to the Arab/ Muslim cultural values of local social workers

A generalization of the converse of Brolin's theorem

We prove a generalization of Lopes's theorem, that is, of the converse of Brolin's theorem

Tyrosine phosphorylation of SGEF regulates RhoG activity and cell migration

SGEF and Ephexin4 are members of the Ephexin subfamily of RhoGEFs that specifically activate the small GTPase RhoG. It is reported that Ephexin1 and Ephexin5, two well-characterized Ephexin subfamily RhoGEFs, are tyrosine-phosphorylated by Src, and that their phosphorylation affect their activities and functions. In this study, we show that SGEF, but not Ephexin4, is tyrosine-phosphorylated by Src. Tyrosine phosphorylation of SGEF suppresses its interaction with RhoG, the elevation of RhoG activity, and SGEF-mediated promotion of cell migration. We identified tyrosine 530 (Y530), which is located within the Dbl homology domain, as a major phosphorylation site of SGEF by Src, and Y530F mutation blocked the inhibitory effect of Src on SGEF. Taken together, these results suggest that the activity of SGEF is negatively regulated by tyrosine phosphorylation of the DH domain

超越整函数の無理的中立周期系と複素力学系の解析的研究

金沢大学自然科学研究科複素力学系とネヴァンリンナ理論の間の辞書の構築を行った.さらにその数論における類似にも理論を拡大した.複素力学系に現れる数論的問題である無理的中立周期系の解析的線型化問題を有理函数のみならず超越整函数に対しても研究し、とくに自然な幾何学的有限性のもとでこの問題を解決した.一方、この問題をネヴァンリンナ理論の手法を用いても研究し、70年来の古典的結果を大きく改良することに成功した.さらにこの研究を複素力学系とネヴァンリンナ理論の横断的研究へと発展させ、数論における類似とも併せて辞書を構築した.具体的には、超越整函数の無理的中立周期系の複素力学系の解析的研究の基礎をなす、有理函数の平均化値分布の極限測度を多重ポテンシャル論の観点から研究し、それにより理論の再構成を行った。その結果、反復合成の力学系に対しては代数的、力学系的、ネヴァンリンナ理論的にそれぞれ定義される種々の例外値集合が全て一致すること、特に高々2点からなるという結果を得た.さらに遂次合成列の力学系に対してもそれらの自然な包含関係を明らかにし、それら例外値集合が全て可算的であるというネヴァンリンナ理論的に根本的な問題を解決した.同時に、公理論的ポテンシャル論の収束定理をこれらの結果から見直すことで新たな研究結果を多数得た.とくに複素力学系と解析数論の中心的研究対象である、回転領域の上でのポテンシャルの収束に関する研究結果を得た.研究課題/領域番号:15740085, 研究期間(年度):2003 – 2005出典：「超越整函数の無理的中立周期系と複素力学系の解析的研究」研究成果報告書　課題番号15740085（KAKEN：科学研究費助成事業データベース（国立情報学研究所））（https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-15740085/)を加工して作

Chain dimensions and hydration behavior of collagen model peptides in aqueous solution: [Glycyl-4(R)-hydroxyprolyl-4(R)-hydroxyproline]n, [Glycylprolyl-4(R)-hydroxyproline]n, and some related model peptides

Terao K., Mizuno K., Murashima M., et al. Chain dimensions and hydration behavior of collagen model peptides in aqueous solution: [Glycyl-4(R)-hydroxyprolyl-4(R)-hydroxyproline]n, [Glycylprolyl-4(R)-hydroxyproline]n, and some related model peptides. Macromolecules, 41(19), 7203-7210, September 4, 2008. Copyright © 2008, American Chemical Society. https://doi.org/10.1021/ma800790w

Higher-order modulations in the skyrmion-lattice phase of Cu2_2OSeO3_3

Using small angle neutron scattering, we have investigated higher-order peaks in the skyrmion-lattice phase of Cu$_2$OSeO$_3$, in which two different skyrmion lattices, SkX1 and SkX2, are known to form. For each skyrmion-lattice phase, we observed two sets of symmetrically inequivalent peaks at the higher-order-reflection positions with the indices $(110)$ and $(200)$. Under the condition where the SkX1 and SkX2 coexist, we confirmed the absence of the scattering at $\mathbf{Q}$ positions combining reflections from the two phases, indicating a significantly weak double-scattering component. Detailed analysis of the peak profile, as well as the temperature and magnetic-field dependence of the peak intensity, also supports the intrinsic higher-order modulation rather than the parasitic double scattering. The two higher-order modulations show contrasting magnetic-field dependence; the former $(110)$ increases as the field is increased, whereas the latter $(200)$ decreases. This indicates that, in Cu$_2$OSeO$_3$, skyrmions are weakly distorted, and the distortion is field-dependent in a way that the dominant higher-order modulation switches from $(110)$ to $(200)$ under field. Monte Carlo simulations under sweeping external magnetic field qualitatively reproduce the observed magnetic-field dependence, and suggests that the higher-order modulations correspond to the superlattices of weak swirlings appearing in the middle of the original triangular-latticed skyrmions.Comment: 13 pages, 14 figure