The Best Part of Life : Subsistence Hunting, Ethnicity, and Economic Adaptation among Young Adult Inuit Males

This paper examines the economic adaptations and subsistence hunting involvement of households between the ages of 20 and 35 in the Copper Inuit community of Holman. Social, economic, and political changes throughout the Canadian Arctic have made it impossible for young adults to pursue the same mixed economic strategies as previous generations. A general decrease in subsistence hunting involvement is characteristic of the younger generation. Nevertheless, some young householders have made a conscious effort to remain active in subsistence hunting and fishing to provide for themselves and related households. Some have even increased subsistence hunting involvement as their own parents age and become increasingly infirm. Other householders are less active in hunting and fishing, but continue to view land-based harvesting as central to a sense of Inuit identity. The motivations, economic position, and family background of a sample of active and less active young adult hunters are explored in an attempt to understand the pressures experienced by young adults as they strive to make a place in a northern society radically different from that of their parents at a similar age. While the authors recognize the economic value of subsistence harvesting and the foods that result from it, we also emphasize the less easily quantified dimensions of subsistence ideology and its impact upon physical health, psychological well-being, and community integration.Key words: subsistence, harvest effort, Inuit identity, young adults, food sharing, health, self-esteemCet article examine les adaptations économiques et l'activité de chasse de subsistance de chefs de ménage âgés de 20 à 35 ans, dans la communauté Copper Inuit de Holman. Les changements sociaux, économiques et politiques qui ont eu lieu dans tout l'Arctique canadien ont fait qu'il est impossible pour les jeunes adultes de poursuivre les mêmes stratégies d'économie mixte que les générations précédentes. La génération la plus jeune se caractérise par une diminution généralisée de l'activité de chasse de subsistance. Néanmoins, certains jeunes chefs de ménage ont fait un effort conscient pour poursuivre la chasse et la pêche de subsistance afin de subvenir à leurs propres besoins et à ceux de ménages apparentés. Certains consacrent même plus de temps à la chasse de subsistance à mesure que leurs propres parents vieillissent et deviennent physiquement incapables de se livrer à ces activités. D'autres chefs de ménage se consacrent maintenant moins à la chasse et à la pêche, mais continuent de considérer le prélèvement des ressources naturelles comme essentielle à l'identité inuit. On a exploré les motivations, la situation économique et les antécédents familiaux d'un échantillon de jeunes chasseurs adultes, certains plus actifs que d'autres, afin d'essayer de comprendre les pressions ressenties par les jeunes adultes alors qu'ils luttent pour se faire une place dans une société nordique radicalement différente de celle de leurs parents au même âge. Bien que les auteurs reconnaissent la valeur économique de la récolte de subsistance et de la nourriture qui en résulte, ils insistent aussi sur la dimension plus difficile à qualifier de l'idéologie de subsistance, et sur ses retombées sur la santé physique, le bien-être psychologique et l'intégration de la collectivité.Mots clés: subsistance, temps consacré au prélèvement, identité inuit, jeunes adultes, partage de la nourriture, santé, estime de so

Dementia services for people from Black, Asian and Minority Ethnic and White-British communities: Does a primary care based model contribute to equality in service provision?

This study set out to investigate whether there were disparities in service provision for people from Black, Asian and Minority Ethnic (BAME) communities compared to White British (WB) communities within a primary care led dementia service in the UK. Data were extracted from 30 cases from three BAME (African-Caribbean, South Asian and Chinese) communities who had been referred to a dementia service between April 2016 and December 2017. We then extracted data from 30 WB cases matched for gender, age (within 5years) and General Practitioner surgery. We compared service provision for both samples around assessment, diagnosis and post-diagnostic support. The primary source of information in the BAME sample was less likely to be recorded as being the main carer and more likely to be an adult child. Cases from both samples were equally likely to have a CT scan. People from BAME communities were less likely to receive a cognitive assessment, and when they did they scored at a lower level. There was no difference between samples for the diagnoses that cases received, but BAME cases were more likely to be assessed as being low rather than medium or high risk. While cases from both samples were equally likely to receive medication, BAME cases were more likely to be seen by a psychiatrist. Significantly more people from the WB sample were recorded as using or being offered more than one form of community support. This study of a primary care-based dementia service suggests that while many areas of service provision showed no evidence of inequality, important differences remain including the time at which people present for assessment and the range of post-diagnostic services which are discussed. Further research is required to establish the likely causes of these disparities

More Than a Moggy; A Population Genetics Analysis of the United Kingdom’s Non-Pedigree Cats

The domestic cat is one of the most popular pets in the world. It is estimated that 89–92% of domestic cats in the UK are non-pedigree Domestic shorthair (DSH), Domestic longhair (DLH), or Domestic semi-longhair cats (DSLH). Despite their popularity, little is known of the UK non-pedigree cats’ population structure and breeding dynamics. Using a custom designed single nucleotide variant (SNV) array, this study investigated the population genetics of 1344 UK cats. Principal components analysis (PCA) and fastSTRUCTURE analysis verified that the UK’s DSH, DLH, and DSLH cats are random-bred, rather than admixed, mix breed, or crossbred. In contrast to pedigree cats, the linkage disequilibrium of these random-bred cats was least extensive and decayed rapidly. Homozygosity by descent (HBD) analysis showed the majority of non-pedigree cats had proportionally less of their genome in HBD segments compared to pedigree cats, and that these segments were older. Together, these findings suggest that the DSH, DLH, and DSLH cats should be considered as a population of random-bred cats rather than a crossbred or pedigree-admixed cat. Unexpectedly, 19% of random-bred cat genomes displayed a higher proportion of HBD segments associated with more recent inbreeding events. Therefore, while non-pedigree cats as a whole are genetically diverse, they are not impervious to inbreeding and its health risks

Generalized form of the magnetic anisotropy field in micromagnetic and atomistic spin models

We present a general approach to the derivation of the effective anisotropy field which determines the dynamical behavior of magnetic spins according to the Landau-Lifshitz-Gilbert equation. The approach is based on the gradient in spherical polar coordinates with the final results being expressed in Cartesian coordinates as usually applied in atomistic and micromagnetic model calculations. The approach is generally valid for all orders of anisotropies including higher-order combinations of azimuthal and rotational anisotropies often found in functional magnetic materials such as permanent magnets and an emerging class of antiferromagnetic materials with applications in spintronics. Anisotropies are represented in terms of spherical harmonics which have the important property of rational temperature scaling. Effective field vectors are given for anisotropies up to sixth order, presenting a unified framework for implementing higher-order magnetic anisotropies in numerical simulations

Comparison of the performance of photonic band-edge liquid crystal lasers using different dyes as the gain medium

The primary concern of this work is to study the emission characteristics of a series of chiral nematic liquid crystal lasers doped with different laser dyes (DCM, pyrromethene 580, and pyrromethene 597) at varying concentrations by weight (0.5-2 wt %) when optically pumped at 532 nm. Long-wavelength photonic band-edge laser emission is characterized in terms of threshold energy and slope efficiency. At every dye concentration investigated, the pyrromethene 597-doped lasers exhibit the highest slope efficiency (ranging from 15% to 32%) and the DCM-doped lasers the lowest (ranging from 5% to 13%). Similarly, the threshold was found to be, in general, higher for the DCM-doped laser samples in comparison to the pyrromethene-doped laser samples. These results are then compared with the spectral properties, quantum efficiencies and, where possible, fluorescence lifetimes of the dyes dispersed in a common nematic host. In accordance with the low thresholds and high slope efficiencies, the results show that the molar extinction coefficients and quantum efficiencies are considerably larger for the pyrromethene dyes in comparison to DCM, when dispersed in the liquid crystal host.open191

A Performance Versus Cost Analysis of Prepreg Carbon Fibre Epoxy Energy Absorption Structures

Carbon fibre epoxy composites are sought after for their excellent specific energy absorption (SEA) but are costly. A range of prepreg carbon fibre epoxy layups were subjected to a 10 m/s impact with 4 kJ of energy. Fibre volume fraction and voidage were determined for each sample and the fracture analysed in detail. SEA ranged from 35.27 J/g to 60.25 J/g with the highest performance from 8 plies of 200gsm 2x2 twill all laid at 0 degrees. Vacuum assisted oven cure resulted in higher voidage than autoclave cure (2.52% versus 0.17%) but did not affect SEA. According to a ratio of performance to cost the highest rated samples were an 8 ply oven cure and a 3 ply autoclave cure specimen and there was little difference between them. This work has highlighted that there is enormous potential for cost reduction of prepreg carbon fibre epoxy energy absorption structures through the use of heavier areal weight fabrics and fewer plies as well as through the use of oven cured prepreg

Getting the right balance: insole design alters the static balance of people with diabetes and neuropathy

BACKGROUND: Over 1 in 3 older people with diabetes sustain a fall each year. Postural instability has been identified as independent risk factor for falls within people with Diabetic Peripheral Neuropathy (DPN). People with DPN, at increased risk of falls, are routinely required to wear offloading insoles, yet the impact of these insoles on postural stability and postural control is unknown. The aim of this study was to evaluate the effect of a standard offloading insole and its constituent parts on the balance in people with DPN. METHODS: A random sample of 50 patients with DPN were observed standing for 3 × 30 s, and stepping in response to a light, under five conditions presented in a random order; as defined by a computer program; 1) no insole, 2) standard diabetic: a standard offloading insole made from EVA/poron®, and three other insoles with one design component systematically altered 3) flat: diabetic offloading insole with arch fill removed, 4) low resilient memory: diabetic offloading insole with the cover substituted with low resilience memory V9, 5) textured: diabetic offloading insole with a textured PVC surface added (Algeos Ltd). After each condition participants self-rated perceived steadiness. RESULTS: Insole design effected static balance and balance perception, but not stepping reaction time in people with DPN. The diabetic and memory shaped insoles (with arch fill) significantly increased centre of pressure velocity (14 %, P = 0.006), (13 %, P = 0.001), and path length (14 %, P = 0.006), (13 %, P = 001), when compared to the no insole condition. The textured shaped and flat soft insole had no effect on static balance when compared to the no insole condition (P > 0.05). CONCLUSION: Insoles have an effect on static balance but not stepping reaction time. This effect is independent of neuropathy severity. The addition of a textured cover seems to counter the negative effect of an arch fill, even in participants with severe sensation loss. Static balance is unaffected by material softness or resilience. Current best practice of providing offloading insoles, with arch fill, to increase contact area and reduce peak pressure could be making people more unstable. Whilst flat, soft insoles maybe the preferable design option for those with poor balance. There is a need to develop an offloading insole that can reduce diabetic foot ulcer risk, without compromising balance