Impact of migration on economic and social development : a review of evidence and emerging issues

This paper provides a review of the literature on the development impact of migration and remittances on origin countries and on destination countries in the South. International migration is an ever-growing phenomenon that has important development implications for both sending and receiving countries. For a sending country, migration and the resulting remittances lead to increased incomes and poverty reduction, and improved health and educational outcomes, and promote economic development. Yet these gains might come at substantial social costs to the migrants and their families. Since many developing countries are also large recipients of international migrants, they face challenges of integration of immigrants, job competition between migrant and native workers, and fiscal costs associated with provision of social services to the migrants. This paper also summarizes incipient discussions on the impacts of migration on climate change, democratic values, demographics, national identity, and security. In conclusion, the paper highlights a few policy recommendations calling for better integration of migration in development policies in the South and the North, improving data collection on migration and remittance flows, leveraging remittances for improving access to finance of recipient households and countries, improving recruitment mechanisms, and facilitating international labor mobility through safe and legal channels.Population Policies,Health Monitoring&Evaluation,Access to Finance,Voluntary and Involuntary Resettlement,Banks&Banking Reform

Supervisors’ pedagogical role at a clinical education ward – an ethnographic study

BACKGROUND: Clinical practice is essential for health care students. The supervisor’s role and how supervision should be organized are challenging issues for educators and clinicians. Clinical education wards have been established to meet these challenges and they are units with a pedagogical framework facilitating students’ training in real clinical settings. Supervisors support students to link together theoretical and practical knowledge and skills. From students’ perspectives, clinical education wards have shown potential to enhance students’ learning. Thus there is a need for deeper understanding of supervisors’ pedagogical role in this context. We explored supervisors’ approaches to students’ learning at a clinical education ward where students are encouraged to independently take care of patients. METHOD: An ethnographic approach was used to study encounters between patients, students and supervisors. The setting was a clinical education ward for nursing students at a university hospital. Ten observations with ten patients, 11 students and five supervisors were included in the study. After each observation, individual follow-up interviews with all participants and a group interview with supervisors were conducted. Data were analysed using an ethnographic approach. RESULTS: Supervisors’ pedagogical role has to do with balancing patient care and student learning. The students were given independence, which created pedagogical challenges for the supervisors. They handled these challenges by collaborating as a supervisory team and taking different acts of supervision such as allowing students their independence, being there for students and by applying patient-centredness. CONCLUSION: The supervisors’ pedagogical role was perceived as to facilitate students’ learning as a team. Supervisors were both patient- and student-centred by making a nursing care plan for the patients and a learning plan for the students. The plans were guided by clinical and pedagogical guidelines, individually adjusted and followed up

Вариантная анатомия повздошно-поясничной артерии

АНАТОМИЯПОДВЗДОШНАЯ АРТЕРИЯАРТЕРИ

Divisor class groups of rational trinomial varieties

We give an explicit description of the divisor class groups of rational trinomial varieties. As an application, we relate the iteration of Cox rings of any rational variety with torus action of complexity one to that of a Du Val surface.Comment: 17 page

Maximal multihomogeneity of algebraic hypersurface singularities

From the degree zero part of logarithmic vector fields along an algebraic hypersurface singularity we indentify the maximal multihomogeneity of a defining equation in form of a maximal algebraic torus in the embedded automorphism group. We show that all such maximal tori are conjugate and in one-to-one correspondence to maxmimal tori in the degree zero jet of the embedded automorphism group. The result is motivated by Kyoji Saito's characterization of quasihomogeneity for isolated hypersurface singularities and extends its formal version and a result of Hauser and Mueller.Comment: 5 page

Lagrangian Topology and Enumerative Geometry

We use the "pearl" machinery in our previous work to study certain enumerative invariants associated to monotone Lagrangian submanifolds.Comment: 86 page

Hyperholomorpic connections on coherent sheaves and stability

Let $M$ be a hyperkaehler manifold, and $F$ a torsion-free and reflexive coherent sheaf on $M$. Assume that $F$ (outside of its singularities) admits a connection with a curvature which is invariant under the standard SU(2)-action on 2-forms. If the curvature is square-integrable, then $F$ is stable and its singularities are hyperkaehler subvarieties in $M$. Such sheaves (called hyperholomorphic sheaves) are well understood. In the present paper, we study sheaves admitting a connection with SU(2)-invariant curvature which is not necessarily square-integrable. This situation arises often, for instance, when one deals with higher direct images of holomorphic bundles. We show that such sheaves are stable.Comment: 37 pages, version 11, reference updated, corrected many minor errors and typos found by the refere

Cohomology of bundles on homological Hopf manifold

We discuss the properties of complex manifolds having rational homology of $S^1 \times S^{2n-1}$ including those constructed by Hopf, Kodaira and Brieskorn-van de Ven. We extend certain previously known vanishing properties of cohomology of bundles on such manifolds.As an application we consider degeneration of Hodge-deRham spectral sequence in this non Kahler setting.Comment: To appear in Proceedings of 2007 conference on Several complex variables and Complex Geometry. Xiamen. Chin