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2,308
result(s) for
"Power of exclusion"
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A study of genomic diversity in populations of Maharashtra, India, inferred from 20 autosomal STR markers
by
Kumawat, R. K.
,
Dixit, Akansha
,
Kathane, Prachi
in
Analysis
,
Biological diversity
,
Biomedical and Life Sciences
2021
Objective
This study was planned to evaluate the genetic diversity in the admixed and
Teli
(a Hindu caste) populations of Maharashtra, India using 20 autosomal Short Tandem Repeat (STR) genetic markers. We further investigated the genetic relatedness of the studied populations with other Indian populations.
Results
The studied populations showed a wide range of observed heterozygosity viz. 0.690 to 0.918 for the admixed population and 0.696 to 0.942 for the Teli population. This might be due to the multi-directional gene flow. The admixed and Teli populations also showed a high degree polymorphism which ranged from 0.652 to 0.903 and 0.644 to 0.902, respectively. Their combined value of matching probability for all the studied loci was 4.29 × 10
–25
and 5.01 × 10
–24
, respectively. The results of Neighbor-Joining tree and Principal Component Analysis showed that the studied populations clustered with the general populations of Jharkhand, UttarPradesh, Rajasthan and Central Indian States, as well as with the specific populations of Maharashtra (
Konkanastha Brahmins
) and Tamil Nadu (
Kurmans
). Overall, the obtained data showed a high degree of forensic efficacy and would be useful for forensic applications as well as genealogical studies.
Journal Article
Design and development of a multiplex microsatellite panel for the genetic characterisation and diversity assessment of domestic turkey (Meleagris gallopavo gallopavo)
by
Martínez, Amparo Martínez
,
Delgado Bermejo, Juan Vicente
,
Pons Barros, Agueda
in
Alleles
,
Biodiversity
,
Brazil
2020
Domestic turkey production generally utilises only a few genetically improved lines, and local breeds are severely endangered as a result. Furthermore, the genetic resources of domestic turkeys have not been properly investigated, which could, ultimately, lead to the extinction of local breeds and negatively affect their corresponding genetic diversity and environmental adaptation. Although, several microsatellite markers have been designed for mapping and quantitative trait locus analysis, there is no standard panel of markers for genetic characterisation or genetic diversity assessment. Accordingly, the present study aimed to develop a set of polymorphic microsatellite markers that could be used for international turkey population studies. Thirty-nine microsatellites were selected based on polymorphism, DNA sequence and chromosome position, as well as on amplification efficiency, success rate and the absence of nonspecific amplification. The markers were screened using 105 DNA samples from local turkey breeds from Mexico, the United States, Italy, Brazil, Egypt and Spain. A total of 401 alleles were identified, with a mean number of alleles per marker of 10.28 ± 4.25. All microsatellites were polymorphic, with at least four alleles and no more than 19 alleles. Furthermore, allelic richness ranged from 3.810 to 17.985, mean heterozygosity ranged from 0.452 ± 0.229 to 0.667 ± 0.265, polymorphic information content values ranged from 0.213 (MNT264) to 0.850 (RHT0024) and the mean Fis value was 0.322. Overall, the panel was highly polymorphic and exhibited moderate Hardy-Weinberg disequilibrium, thereby indicating its value as a tool for biodiversity and population structure studies that could play an important role in promoting the conservation of local turkey breeds.
Highlights
Important genetic resources reside within indigenous turkey populations. These are linked to historic heritage production values and breeds. It is important to preserve this heritage and genetic diversity, which threatens to be lost as production systems focus on production characteristics.
Microsatellite markers, even though, they are now replaced by single nucleotide polymorphism automatic genotyping platforms in many fields of genetics, remain a viable alternative thanks to their cheapness and simplicity of study which makes them particularly useful when the population to be studied lacks information of the prior genetic structure.
Journal Article
Isolation and Characterisation of a Dinucleotide Microsatellite Set for a Parentage and Biodiversity Study in Domestic Guinea Pig (Cavia Porcellus)
by
Vega-Pla, José Luis
,
Landi, Vincenzo
,
Aviles, Diana
in
animal proteins
,
Biodiversity
,
Bolivia
2015
The domestic guinea pig is a valuable genetic resource because it is part of local folklore and food tradition in many South American countries. The economic importance of the guinea pig is due to its high feed efficiency and the quality of animal protein produced. For these reasons, our study is aimed to design a complete dinucleotide microsatellite marker set following international recommendation to assess the genetic diversity and genealogy management of guinea pigs. We selected a total of 20 microsatellites, looking for laboratory efficiency and good statistical parameters. The set was tested in 100 unrelated individuals of guinea pigs from Ecuador, Peru, Colombia, Bolivia and Spain. Our results show a high degree of polymorphisms with a total of 216 alleles and a mean number of 10.80±3.49 for markers with a combined exclusion probability of 0.99.
Journal Article
Power of exclusion revisited: probability of excluding relatives of the true father from paternity
by
Wong, Dart-man
,
Fung, Wing K.
,
Chung, Yuk-ka
in
Deoxyribonucleic acid
,
DNA Fingerprinting - methods
,
Efficacy
2002
In parentage testing using DNA markers, the formulae for calculating the probability of exclusion generally overstate the power of a test battery by considering its ability to exclude a random man. It is known that in many cases, in particular immigration applications, the false father is more likely to be a relative, e.g. brother, of the true father than an unrelated man. This work presents formulae that take this consideration into account. A practical example using Hong Kong data is provided to illustrate the effect of the modification. Also discussed is how the expected efficacy of a test battery will be affected when possible mutations and null alleles or genetic inconsistencies are taken into consideration.
Journal Article
Effect of chronic irradiation on plant resistance to biotic stress in 30-km chernobyl nuclear power plant exclusion zone
by
Grodzinskii, D. M
,
Gushcha, N. I
,
Kryzhanovskaya, M. S
in
Biomedical and Life Sciences
,
biotic stress
,
Blumeria graminis
2011
It was established in greenhouse experiments that infection with powdery moldew (Erysiphe graminis DC. f. sp. tritici Em. Marchal) and brown rust (Puccinia triticana Erikss. & Henn.) of three wheat (Triticum aestivum L.) cultivars (Mironovskaya 808, Polesskay 70, and Kiyanka) grown from seeds, collected in the Chernobyl exclusion zone, was 1.5–2.0 times higher than of plants grown from control seeds. On field trials in the Chernobyl zone, wheat plant resistance to biotic stress was reduced. At artificial infection with brown rust, the disease development was enhanced on plots with increased radiation background. One of the mechanisms of the declined phytoimmunity potential under the action of low doses of chronic irradiation is evidently a reduced activity of plant proteinase inhibitors. Thus, in wheat and rye (Secale cereale L., cv. Saratovskaya) grains, their activity reduced by 35–60% as compared to control. Active form and race formation in the population of the cereal stem rust causal agent (Puccinia graminis Pers.) was observed in the Chernobyl zone. A “new” population of this fungus with high frequency of more virulent clones than in other Ukraine regions was distinguished. The results obtained independently in greenhouse and field trials performed in the Chernobyl zone demonstrated radiation stress influence on the pathogen-plant interactions. They indicate a necessity of monitoring the microevolutionary processes occurring in both plants and their pathogens under conditions of technogenic stresses.
Journal Article
The Critical Ethnography of Public Policy for Social Justice
by
García, Emmanuel
,
Lopez, Patricia D.
,
Valenzuela, Angela
in
coalition‐building, rise of a political counterstory ‐ drawing upon TCEP's goal
,
critical ethnographers ‐ preoccupied with societal inequities
,
critical ethnography of public policy for social justice
2011
This chapter contains sections titled:
The Ethnography of Public Policy
State Political and Educational Context
The Political Career of House Bill 3
Conclusion
References Cited
Book Chapter
Sexual Life
by
Lim, Jason
,
Browne, Kath
,
Brown, Gavin
in
divergence between sexual acts ‐ in which people engage and sexual identities, “gay men” have been known to have sex with “lesbians”
,
multiple ways of understanding and engaging with sexual life ‐ asking questions
,
Queer theory, a robust challenge ‐ to neat alignment of sexed bodies, sexual acts and identities
2011
This chapter contains sections titled:
When and Where does Sexual Life Matter: Introduction
Why Don't Geographers Talk about Sex?
What Is So Wrong with Being Normal?
Who and Where Can Be Queer?
Is Queer the Only Way to “Do” and “Be” Political (about or in Sexual Life)?
References
Book Chapter
Addressing power asymmetries in global health: Imperatives in the wake of the COVID-19 pandemic
by
Abimbola, Seye
,
Pai, Madhukar
,
Asthana, Sumegha
in
Analysis
,
Biology and Life Sciences
,
Bisexual
2021
In this article, we, a diverse, gender-balanced group of 13 public (global) health researchers, teachers, and practitioners (all born in, and 11 of 13 currently living in the so-called global South), outline our wish list for change in a post-pandemic world—at the individual (including among ourselves), and at the organisational level. [...]we pay attention in this article to the fact that every grouping has its own internal power hierarchies (as displayed in the Fig 1), with intersectional systemic disadvantages caused, among others, by race, caste, class, ethnicity, gender, and religion. [...]we must learn from Black, Indigenous, and feminist movements how to shift away from the coloniser’s model of the world, and to help us unlearn, unthink, and undo the logics and doings of coloniality [9,24]. Many marginalised groups (to which some of the authors of this paper belong)—e.g., Black, Indigenous, and people of colour (BIPOC), sex workers, migrants and refugees, women and girls, ethnic minorities, people with disabilities, and lesbian, gay, bisexual, transgender, intersex, and questioning (LGBTIQ) people—are systematically denied platforms for political, social, and cultural reasons.
Journal Article
Weight stigma experiences and self-exclusion from sport and exercise settings among people with obesity
2021
Background
A central strategy to tackle the health risks of obesity is regular physical activity (PA), exercising and participating in sports. However, people with obesity regularly experience weight-related stigma and discrimination in sport and exercise settings. Research has indicated that they often cope with such experiences by simply excluding themselves from sport and exercise. Meanwhile, self-exclusion as a coping strategy has not been fully understood and it remains unclear to what extent self-exclusion from PA settings is accompanied by general inactivity among people with obesity. The goal of this interview study was to determine to what extent physical inactivity among adults with obesity is the result of weight stigma-induced self-exclusion in and from sport and PA settings.
Methods
We conducted semi-structured interviews with thirty adult men and women with obesity (average BMI: 40.64) and asked them about experiences with their body, weight stigma and coping behaviours in sport and exercise settings across their lifespans. Employing constant comparative analysis and a thematic network approach, we analysed the interview data to identify the most common reasons for and different strategies of self-exclusion.
Results
Participants reported that they excluded themselves from sport and exercise settings due to traumatic weight stigma experiences, self-discrimination and fear of stigma, using a variety of strategies. Exposure to discrimination was prevented by selectively avoiding certain settings or strategically frequenting them at certain times only, but also by exercising in ‘safe’ spaces, e.g. at home. Furthermore, people with obesity reported strategically managing their social relations in order to avoid stigmatising reactions by others in exercise settings, for example by exercising individually and avoiding social PA. Most notably, our results strongly indicate that not all self-excluding coping strategies result in less exercising.
Conclusions
In order to successfully promote physical activity among people with obesity, the various forms of self-exclusion should be taken into account as pathways of stigma regarding physical activity. People with obesity may exclude themselves from certain PA settings, yet could still be exercising on their own or in other ways. One focus of public health strategies should thus be directed at the potentially socially isolating effects.
Journal Article
Gender, health and the 2030 agenda for sustainable development
2018
Gender refers to the social relationships between males and females in terms of their roles, behaviours, activities, attributes and opportunities, and which are based on different levels of power. Gender interacts with, but is distinct from, the binary categories of biological sex. In this paper we consider how gender interacts with the 2030 agenda for sustainable development, including sustainable development goal (SDG) 3 and its targets for health and well-being, and the impact on health equity. We propose a conceptual framework for understanding the interactions between gender (SDG 5) and health (SDG 3) and 13 other SDGs, which influence health outcomes. We explore the empirical evidence for these interactions in relation to three domains of gender and health: gender as a social determinant of health; gender as a driver of health behaviours; and the gendered response of health systems. The paper highlights the complex relationship between health and gender, and how these domains interact with the broad 2030 agenda. Across all three domains (social determinants, health behaviours and health system), we find evidence of the links between gender, health and other SDGs. For example, education (SDG 4) has a measurable impact on health outcomes of women and children, while decent work (SDG 8) affects the rates of occupation-related morbidity and mortality, for both men and women. We propose concerted and collaborative actions across the interlinked SDGs to deliver health equity, health and well-being for all, as well as to enhance gender equality and women's empowerment. These proposals are summarized in an agenda for action.
Journal Article