Regional Labour Market Adjustment and the Movements of People: A Review

This review paper examines the link between internal migration and regional labour market adjustment. It outlines the motivation and scope of our enquiry, discusses the three key questions that we plan to pursue, reviews relevant international and New Zealand literature, and outlines proposals for future research. The first key question examines whether migration helps regional labour market adjustment. The second question investigates how important migration is as a regional labour market adjustment mechanism. The final question looks at who is moving and whether it matters for regional labour market adjustment.regional labour market; internal migration; regional labour market adjustment

Capacitors can radiate - some consequences of the two-capacitor problem with radiation

We fill a gap in the arguments of Boykin et al [American Journal of Physics, Vol 70 No. 4, pp 415-420 (2002)] by not invoking an electric current loop (i.e. magnetic dipole model) to account for the radiation energy loss, since an obvious corollary of their results is that the capacitors should radiate directly even if the connecting wires are shrunk to zero length. That this is so is shown here by a direct derivation of capacitor radiation using an oscillating electric dipole radiator model for the capacitors as well as the alternative less widely known magnetic 'charge' current loop representation for an electric dipole [see for example "Electromagnetic Waves" by S.A.Schlekunoff, van Nostrand (1948)]. Implications for Electromagnetic Compliance (EMC) issues as well as novel antenna designs further motivate the purpose of this paper.Comment: 5 Pages with No figure

Modelling Regional Labour Market Adjustment in New Zealand

This paper adopts a vector autoregressive (VAR) approach to analyse the labour market adjustment mechanisms for 12 New Zealand regions over the period 1985 to 2001. It examines the effects of a region-specific shock to employment on itself, the unemployment rate, the participation rate, and the wage rate. The role of migration as a channel of regional labour market adjustment is also inferred. We find that adjustment occurs predominantly through inter-regional migration although the unemployment and participation rates also play a role. Wages, on the other hand, account for very little adjustment. The importance of inter-regional migration in New Zealand matches the results found in Sweden, but stands in contrast to the picture in many European countries. Migration appears to be a more dominant adjustment channel compared to the US and Australian cases. However, this has to be placed into context – New Zealand regions are much smaller in terms of population size.Regional labour market adjustment; Internal migration

Predictors Of Nutritional Status Among Young Samoan Children

The nutrition transition is associated with the rising burden of non-communicable diseases in low-and middle-income countries and in Samoa, young children are particularly vulnerable to malnutrition in various forms. In this present study, we documented the current prevalence and co-existence of child nutritional status outcomes within this population and by census region. We then examined the role of selected child, maternal, and household characteristics as potential predictors of child nutritional status. A cross-sectional, community-based design was used to collect data from singleton pairs of a non-pregnant mother and child between 24 to 59 months olds in the Samoan island of Upolu. Sixty-two out of 305 surveyed children (20.3%) were moderately or severely stunted (HAZ\u3c -2SD), 16.1% were overweight/obese (BMIZ\u3e 2SD), 2.3% were underweight (WAZ\u3c -2SD), and 33.1% were anemic (Hb\u3c 11.0 g/dL). Among the overweight/obese children, 28.6% were also classified as stunted and 42.9% anemic. Census region was not significantly associated with any child nutritional status outcome. Childhood stunting was significantly associated with being female and increased Vitamin C intake, while overweight/obesity was associated with higher family socio-economic status and decreased sugar intake. Child anemia was associated with increased age and having an anemic mother. This analysis identified no common predictors of nutritional status, highlighting the importance of different interventions that address specific forms of malnutrition in this age group. Remarkable levels of stunting, overweight/obesity, and anemia among young children suggest that it is critical to invest in nutrition and scale up health programs targeting early child development in Samoa

A centennial reappraisal of Heisenberg's Quantum Mechanics with a perspective on Einstein's Quantum Riddle

Heisenberg's breakthrough in his July 1925 paper that set in motion the development of Quantum Mechanics through subsequent papers by Born, Jordan, Heisenberg and also Dirac (from 1925 to 1927) is reexamined through a modern lens. In this paper, we shall discuss some new perspectives on (i) what could be the guiding intuitions for his discoveries and (ii) the origin of the Born-Jordan-Heisenberg canonical quantization rule. From this vantage point we may get an insight into Einstein's Quantum Riddle (Lande1974,Sommerfeld1918,Born1926) and a possible glimpse of what might come next after the last 100 years of Heisenberg's quantum mechanics.Comment: (This is the preprint of a paper dedicated to the celebration of 100 years of quantum mechanics, on the anniversary of Heisenberg's founding paper on the subject in July 1925, to be published in a celebratory volume in July 2025 by World Scientific Publications, Singapore

Dynamic analysis of flexible rotor-bearing systems using a modal approach

The generalized dynamic equations of motion were obtained by the direct stiffness method for multimass flexible rotor-bearing systems. The direct solution of the equations of motion is illustrated on a simple 3-mass system. For complex rotor-bearing systems, the direct solution of the equations becomes very difficult. The transformation of the equations of motion into modal coordinates can greatly simplify the computation for the solution. The use of undamped and damped system mode shapes in the transformation are discussed. A set of undamped critical speed modes is used to transform the equations of motion into a set of coupled modal equations of motion. A rapid procedure for computing stability, steady state unbalance response, and transient response of the rotor-bearing system is presented. Examples of the application of this modal approach are presented. The dynamics of the system is further investigated with frequency spectrum analysis of the transient response

Low-energy excitations of the one-dimensional half-filled SU(4) Hubbard model with an attractive on-site interaction: Density-matrix renormalization-group calculations and perturbation theory

We investigate low-energy excitations of the one-dimensional half-filled SU(4) Hubbard model with an attractive on-site interaction U < 0 using the density matrix renormalization group method as well as a perturbation theory. We find that the ground state is a charge density wave state with a long range order. The ground state is completely incompressible since all the excitations are gapful. The charge gap which is the same as the four-particle excitation gap is a non-monotonic function of U, while the spin gap and others increase with increasing |U| and have linear asymptotic behaviors.Comment: 4 pages, 3 figures, submitte