Determining dental sex dimorphism in South Indians using discriminant function analysis

Dental forensics forms a vital branch of forensic science which deals with proper handling, examination and evaluation of dental evidences for identification of victims of crime, accidents or calamities. Therefore skull and teeth often provide the identification material. The aim of the study was to investigate the accuracy of odontometric methods in sex determination of permanent teeth and to compute new formula to differentiate male and female teeth using discriminant function analysis for South Indian population. A total of 100 subjects were selected for the study from a parent population of 4800 students by simple random sampling method. Alginate impressions of the upper dental arch were made and casts were poured immediately. A digital vernier calliper was used for the measurement of all upper anteriors. Twelve different tooth measurements were recorded and from those two indexes have been computed. Statistical analysis was performed using the SPSS version 17.0 software. All the predictor variables were subjected to stepwise discriminant function analysis which optimally separates the genders and a best discriminant function was generated. In all the observed mean dimensions, male values exceed the female values. Student's 't' test for the different predictor variables of all teeth selected between male and females were found significant (p < 0.05). Very high significance was found in mean MD of 11, 12 and 13 and |c| of 23. The variables exhibiting best discriminant powers were mesiodistal width of both upper central incisors, DB-ML of 13 and canine crown module of 13. Sexual dimorphism in the size of permanent teeth differs from one population to the other and hence the standards set for one population could not be applied for another population. Hence this technique would be a simple, quick, cost effective, reliable and accurate for sex determination.     

STR polymorphism among two tribal populations of India

Two tribal populations of India, Bison Horn Maria and Muria from Bastar district of Madhya Pradesh in Central India were studied for DNA polymorphisms at tetranucleotide short tandem repeat (STR) loci (F13A01 and HUMvWA). A total of 63 random adult individuals for F13A01 locus and 53 samples for HUMvWA were analyzed in the present study.     

Moving from voluntary euthanasia to non-voluntary euthanasia: equality and compassion

Abstract.  The recent Dutch law legalising active voluntary euthanasia will reignite the euthanasia debate. An illuminating method for evaluating the moral status of a practice is to follow the implications of the practice to its logical conclusion. The argument for compassion is one of the central arguments in favour of voluntary active euthanasia. This argument applies perhaps even more forcefully in relation to incompetent patients. If active voluntary euthanasia is legalised, arguments based on compassion and equality will be directed towards legalising active non-voluntary euthanasia in order to make accelerated termination of death available also to the incompetent. The removal of discrimination against the incompetent has the potential to become as potent a catch-cry as the right to die. However, the legalisation of non-voluntary euthanasia is undesirable. A review of the relevant authorities reveals that there is no coherent and workable "best interests" test which can be invoked to decide whether an incompetent patient is better off dead. This provides a strong reason for not stepping onto the slippery path of permitting active voluntary euthanasia.     

Euthanasia: why it doesn't matter (much) what the doctor thinks and why there is no suggestion that doctors should have a duty to kill

A major reason that The Netherlands has taken a different approach to the rest of the world on such a fundamental moral issue is that the courts and legislature in that country have accorded the interests of doctors a cardinal role in the euthanasia debate. This article argues that the interests of doctors are of only incidental and peripheral relevance in relation to the moral status of euthanasia. The moral status of euthanasia has little to do with the preparedness of doctors to administer the lethal injection or their general attitude towards the practice. Euthanasia is principally about the interests of the patient and the impact that the practice may have on the community in general, not preserving the conscience or improving the working life of doctors.     

STR data for the Amp FlSTR Profiler Plus loci among 27 populations of different social hierarchy from southern part of Andhra Pradesh, India

Allele frequency for the 9 STR loci (D3S1358, vWA, FGA, D8S1179, D21S11, D18S51, D5S818, D13S317, D7S820) were estimated from a total of 1096 individuals belonging to 27 endogamous populations from the state of Andhra Pradesh, India, covering the entire gamut of socio-economic variation of the linguistic region. These loci are found to be highly polymorphic within the populations with high levels of average heterozygosity (>0.80). However, the allele frequency distributions are fairly uniform across the populations in case of these loci suggesting relatively greater homogeneity among the populations. Regrouping populations into five broad socio-economic categories further reiterated the homogenous pattern of genetic diversity.     

Index and ring finger ratio--a new sex determinant in south Indian population

Identification of human remains is an imperative element of any medicolegal investigation, and a challenging task for forensic experts and physical anthropologists worldwide. Three hundred adult hands (150 males and 150 females) belonging to south Indian population were studied to investigate sexual dimorphism of the index and ring finger ratio. The index and ring finger ratio is derived by dividing the index finger length by ring finger length. The index and ring finger ratio is found to be higher in females. Index and ring finger ratio < or =0.9700 identified 80% of males for both hands, and ratio >0.9700 identified 74% females for the right hand and 78% for the left hand accurately. This study may prove useful to determine the sex of an isolated hand when it is subjected for medicolegal examination.     

Price dispersion across Indian states: A club convergence analysis

This study examines the price convergence across 28 Indian states and 7 union territories at an aggregate and subgroups level over the period 2011–12 to 2017–18. We employ a novel approach of Phillips and Sul panel convergence technique, which accounts for transitional dynamics and heterogeneity in the panel. The results suggest price divergence and evidence of clubs across Indian states at both aggregate and subgroup level. The outcomes of this study help policymakers in addressing the price dispersion across states, which in turn improves the market integration, allocation of resources, and standard of living.