A comment on ‘colonialism and ethnicity’

Self‐reported incidence of racial discrimination was investigated among four Asian‐American groups to explore their magnitude and the ways of coping with the discrimination episodes. The samples showed that among the two modes of coping ‐ problem‐focused or emotion‐focused coping ‐ a majority of Asian Americans has utilized the latter. Reasons of adopting these coping strategies were further explored for their determinants. Intergroup differences in ethnicity, education, gender and cultural values were found to exert influences on the ways of coping with racial discrimination among Asian Americans.     

Ulltrastructural and trace metal studies on radiographers’ hair and nails

Scalp hair and fingernail samples of 42 medical radiographers and 42 nonradiographers (control) with matching age groups and food habits were collected for this study. Trace metal estimation by atomic absorption spectrometry (AAS) has indicated a significant increase (P < 0.001) in Zn, Cu, and Cd contents in the radiographers’ hair and nails. Scanning electron microscopy (SEM) reveled structural changes in the hair and nails of radiographers. Significant alterations in the Zn and Cd contents along with extensive structural damage in the hair and nails probably indicate that low-dose Χ-radiation imposes stress on these radiation workers.     

Mineralization and non-ideality: on nature’s foundry

Understanding how ions, ion-clusters and particles behave in non-ideal environments is a fundamental question concerning planetary to atomic scales. For biomineralization phenomena wherein diverse inorganic and organic ingredients are present in biological media, attributing biomaterial composition and structure to the chemistry of singular additives may not provide a holistic view of the underlying mechanisms. Therefore, in this review, we specifically address the consequences of physico-chemical non-ideality on mineral formation. Influences of different forms of non-ideality such as macromolecular crowding, confinement and liquid-like organic phases on mineral nucleation and crystallization in biological environments are presented. Novel prospects for the additive-controlled nucleation and crystallization are accessible from this biophysical view. In this manner, we show that non-ideal conditions significantly affect the form, structure and composition of biogenic and biomimetic minerals.     

SNPs,SSRs and inferences on cassava’s origin

Despite its importance as a staple food throughout the tropics, the root crop cassava (it Manihot esculenta ssp. esculenta) has traditionally not been a major focus of research. One basic question about cassava that remained unresolved until recently concerns the crop’s origin. This paper describes analyses of SNPs (single nucleotide polymorphisms) and SSR (simple sequence repeat) variation as a means of tracing cassava’s evolutionary and geographical origins. Genetic diversity was examined in a sample of 20 cassava varieties that are representative of germplasm diversity within the crop, and in 212 individuals collected from wild populations of two closely related Manihot species. SNP and indel variation was examined in portions of two low copy nuclear genes, BglA and Hnl. Inferences from these genes were compared to those from previously examined loci, including the low copy nuclear gene G3pdh and 5 SSR loci. For all genes examined, SNPs and SSR alleles are shared between domesticated cassava and a specific geographical subset of wild Manihot populations, which suggests the following: (1) Cassava was likely domesticated from a single wild Manihot species, M. esculenta ssp. flabellifolia, rather than from multiple hybridizing species, as traditionally believed; and (2) the crop most likely originated in the southern Amazon basin.     

Parasite effects on host’s trophic and isotopic niches

Wild animals are usually infected with parasites that can alter their hosts’ trophic niches in food webs as can be seen from stable isotope analyses of infected versus uninfected individuals. The mechanisms influencing these effects of parasites on host isotopic values are not fully understood. Here, we develop a conceptual model to describe how the alteration of the resource intake or the internal resource use of hosts by parasites can lead to differences of trophic and isotopic niches of infected versus uninfected individuals and ultimately alter resource flows through food webs. We therefore highlight that stable isotope studies inferring trophic positions of wild organisms in food webs would benefit from routine identification of their infection status.     

Effects of seasonal and climate variations on calves’ thermal comfort and behaviour

The aim of this study was to measure the effect of season and climate variations on thermal comfort and behaviour of 6-month-old dairy calves housed in a semi-opened shelter to develop animal-based indicators for assessing animal thermal comfort. The ultimate purpose was to further exploit the use of those indicators to prevent thermal stress by providing appropriate care to the animals. Measurements were taken for winter and summer seasons. Results showed that season significantly influenced (P?≤?0.01) the lying down behaviour of calves by reducing the time spent lying, from 679.9 min in winter to 554.1 min in summer. Moreover, season had a significant influence (P?≤?0.01) on feeding behaviour. In detail, the total length of feeding periods was shorter in winter, 442.1 min in comparison to 543.5 min in summer. Time spent drinking increased significantly (P?≤?0.001), from 11.9 min in winter to 26.9 min in summer. Furthermore, season had a significant influence (P?≤?0.001) on self grooming behaviour which was 5.5 times longer in duration in winter than in summer (1,336 s vs 244 s). It was concluded that calves’ thermal comfort is affected by seasonal and climate variations and that this can be assessed by measuring behaviour with animal-based indicators, such as lying down, resting, standing up, feeding, rumination, drinking and self grooming. The indicators developed may be a useful tool to prevent animal thermal stress by providing appropriate housing and handling to calves under seasonal and climate challenge.     

Clinicians’ views and expectations of human microbiome science on asthma and its translations

Human microbiome science examines the microbiota that live in and on the human body and their role in human health. This paper examines clinicians’ views and expectations of microbiome science in asthma care. Drawing on qualitative interviews with 10 clinicians in Canada, we explore their perspectives for insights into translation of human microbiome science. The emphasis on novelty in much microbiome scholarship, we suggest, does not account fully for the ways in which microbiome science translations may be taken up in multiple ways that are both disruptive to and continuous with contemporary biomedicine. We suggest that clinicians drew on scientific discourses of “evidence” and “facts” as a form of boundary work to re-establish a separation between western biomedicine and alternative health practitioners, and clinical expertise and lay knowledge. We conclude with a discussion of human microbiome science and the emergence of post-Pasteurian modes of health in western biomedicine.     

Effects of Polyphenols on Brain Ageing and Alzheimer’s Disease: Focus on Mitochondria

The global trend of the phenomenon of population ageing has dramatic consequences on public health and the incidence of neurodegenerative diseases. Physiological changes that occur during normal ageing of the brain may exacerbate and initiate pathological processes that may lead to neurodegenerative disorders, especially Alzheimer's disease (AD). Hence, the risk of AD rises exponentially with age. While there is no cure currently available, sufficient intake of certain micronutrients and secondary plant metabolites may prevent disease onset. Polyphenols are highly abundant in the human diet, and several experimental and epidemiological evidences indicate that these secondary plant products have beneficial effects on AD risks. This study reviews current knowledge on the potential of polyphenols and selected polyphenol-rich diets on memory and cognition in human subjects, focusing on recent data showing in vivo efficacy of polyphenols in preventing neurodegenerative events during brain ageing and in dementia. Concentrations of polyphenols in animal brains following oral administration have been consistently reported to be very low, thus eliciting controversial discussion on their neuroprotective effects and potential mechanisms. Whether polyphenols exert any direct antioxidant effects in the brain or rather act by evoking alterations in regulatory systems of the brain or even the body periphery is still unclear. To understand the mechanisms behind the protective abilities of polyphenol-rich foods, an overall understanding of the biotransformation of polyphenols and identification of the various metabolites arising in the human body is also urgently needed.     

A comment on ‘ethnic discrimination in employment and housing’

This article investigates Los Angeles employers' attitudes towards African American and immigrant Latino low-skill workers. Using 145 in-depth interviews of employers in four industries, I find that a central concern of employers of low-skill jobs is control at the workplace, and employers consequently seek workers whom they perceive as manageable and pliable. As such, the most salient component of employers' attitudes towards African American and immigrant Latino low-skill workers is their perception that the manageability and pliability of workers vary by race, nativity and gender. I also link employers' micro-level attitudes to broader societal level ideologies about race and opportunity. I find that employers' attitudes were embedded within an ideology of individualism, as exemplified by the idea of the 'American Dream', and reflected the growing belief that race-based claims are illegitimate.     

Faith on Trial: Blasphemy and ‘Lawfare’ in Indonesia

ABSTRACT

This article develops the argument that blasphemy trials occupy a pivotal role in ‘religion-making’ in post-1998 Indonesia. Examining a blasphemy trial on the island of Lombok in 2010, I argue that the process of democratisation has given civilian actors more opportunity to engage Indonesia’s blasphemy law, a process analysed in terms of ‘lawfare’. Examining the interplay of legal regulation and the campaign against ‘deviant’ religion launched by conservative Muslim groups, the article tracks the affective consequences of this regulation, showing how the blasphemy law inspires civilians to investigate suspected cases of heresy. While blasphemy trials purportedly protect religion from insult and foster religious order, this article argues that religion lawfare breeds suspicion and divisions among citizens.     

Latino racial choices: the effects of skin colour and discrimination on Latinos’ and Latinas’ racial self-identifications

Abstract

Are predictions that Hispanics will make up 25 per cent of the US population in 2050 reliable? The authors of this paper argue that these and other predictions are problematic insofar as they do not account for the volatile nature of Latino racial and ethnic identifications. In this light, the authors propose a theoretical framework that can be used to predict Latinos’ and Latinas’ racial choices. This framework is tested using two distinct datasets – the 1989 Latino National Political Survey and the 2002 National Survey of Latinos. The results from the analyses of both of these surveys lend credence to the authors’ claims that Latinas’ and Latinos’ skin colour and experiences of discrimination affect whether people from Latin America and their descendants who live in the US will choose to identify racially as black, white or Latina/o.     

The ‘Obligation’ to Screen and its Effect on Autonomy

In the United States, disease screening is offered to the public as a consumer service. It has been proposed that the act of “consumption” is a manifestation of agency and that the decision to consume is an exercise of autonomy. The enthusiasm of the American public for disease screening and the expansion in the demand for all sorts of disease screening in recent years can be viewed as an expression of such autonomy. Here, we argue that the enthusiasm for disease screening witnessed in the American public today may be more a reflection of the constraint on autonomy than its facilitation. It is our opinion that the articulation of socio-historical processes has contributed to a moral imperative which is reflected in the decision making of individuals around disease screening. We suggest medical and health professionals have a responsibility to facilitate the exercise of individual autonomy in health care decision making as an integral component of professional obligation. These professionals need to problematise healthcare activities that constrain individual autonomy.     

Parents’ and Professionals’ Perceptions on Causes and Treatment Options for Autism Spectrum Disorders (ASD) in a Multicultural Context on the Kenyan Coast

Objective

To explore parents’ and professionals’ perceived causes and treatment of Autism Spectrum Disorders (ASD) on the Kenyan Coast.

Methods

In-depth interviews and focus group discussions using guiding questions were utilized in data collection. One hundred and three participants, who included parents of children with ASD, special needs teachers, clinicians, and social workers from diverse cultural background, participated in this study. The interviews and focus groups were recorded, transcribed verbatim and then translated to English. Themes were generated using content analysis.

Results

Preternatural causes were mentioned and included evil spirits, witchcraft, and curses. Biomedical causes comprised infections, drug abuse, birth complications, malnutrition, and genetic related problems. Treatment varied from traditional and spiritual healing to modern treatment in health facilities, and included consultations with traditional healers, offering prayers to God, and visits to hospitals.

Conclusions

The results suggest that regardless of cultural backgrounds, people on the Kenyan Coast have similar views on perceived causes and treatment of ASD. These findings provide valuable conceptual understanding for professionals when planning and implementing community based rehabilitation interventions targeting children with ASD within a local context.     

Random variability of map distances based on Kosambi’s and Haldane’s mapping functions

The majority of published genetic maps are based on Kosambi distances or on Haldane distances. For a comparison of both map distance measures, their random variability is of particular interest. For the statistic ‘variance’, this paper presents a relationship between Kosambi distances and Haldane distances. The results suggest that Kosambi distances exhibit a smaller random variability. The theoretical results are applied to an experimental data set for molecular AFLP markers linked to the bolting gene of sugar beet (Beta vulgaris L.).