We apply an online optimization process based on machine learning to the production of Bose-Einstein condensates. BEC is typically created with an exponential evaporation ramp that is optimal for ergodic dynamics with two-body s-wave interactions and no other loss rates, but likely sub-optimal for real experiments. Through repeated machine-controlled scientific experimentation and observations our ’learner’ discovers an optimal evaporation ramp for BEC production. In contrast to previous work, our learner uses a Gaussian process to develop a statistical model of (...) the relationship between the parameters it controls and the quality of the BEC produced. We demonstrate that the Gaussian process machine learner is able to discover a ramp that produces high quality BECs in 10 times fewer iterations than a previously used online optimization technique. Furthermore, we show the internal model developed can be used to determine which parameters are essential in BEC creation and which are unimportant, providing insight into the optimization process of the system. (shrink)

Since the early 1980’s, with the clinical advent of in vitro fertilization resulting in so-called “test tube babies,” a wide array of ethical considerations and concerns regarding artificial womb technology (AWT) have been described. Recent breakthroughs in the development of extracorporeal neonatal life support by means of AWT have reinitiated ethical interest about this topic with a sense of urgency. Most of the recent ethical literature on the topic, however, pertains not to the more imminent scenario of a physiologically improved (...) method of neonatal care through AWT, but instead to the remote scenario of “complete ectogenesis” that imagines human gestation occurring entirely outside of the womb. This scoping review of the ethical literature on AWT spans from more abstract concerns about complete ectogenesis to more immediate concerns about the soon-to-be-expected clinical life support of what we term the fetal neonate or fetonate. Within an organizing framework of different stages of human gestational development, from conception to the viable premature infant, we discuss both already identified and newly emerging ethical considerations and concerns regarding AWT and the care of the fetonate. (shrink)

On 27 February 1998, the Indian Institute of Management, Calcutta and the office of the Fulbright binational educational exchanges in Calcutta jointly hosted a seminar on 'The Tradition of Non Violence: The American Experience and the Gandhian' at the Management Centre for Human Values. There were two keynote presentations. The one on the American experience was by Michael True, Professor of English Literature at Assumption College, Massachusetts, who was teaching as Fulbright visiting lecturer at Utkal University, Bhubaneswar. The Gandhian case (...) was presented by Profes sor Amlan Datta, economist and writer, also former Vice-Chancellor of Visva-Bharati University, Santiniketan. The session was chaired by Professor Amitava Bose, Director, Indian Institute of Management. To close the discussions, a summing up was presented by Professor S.K. Chakraborty, Convenor, Management Centre for Human Values. The importance of discussions on the subject of non-violence and the Gandhian alterna tive cannot be overestimated in this year of the 50th anniversary of Indian independence and a nationwide soul-searching over these five decades. The US Educational Foundation in India contributed to the national discussion through this bilateral seminar and its comparative perspective. (shrink)

Some of the physical implications involved in self-consistently selecting a superconducting (nonequivalent) representation for the BCS Hamiltonian are developed and discussed. This is done by comparing the phase symmetry of our system in original variables with that same symmetry when written in terms of physical variables. It is shown explicitly that Goldstone's theorem is satisfied and that dynamical rearrangement of symmetry has taken place in going from original to physical variables. Thus, it is found that the original phase symmetry transformation (...) is taken up by physical “massless” fields and that the Bose-Einstein condensations of these fields in the physical (superconducting) ground state produce the asymmetry by “printing” the quantum electron numbern on that state. (shrink)

The Bose-Einstein condensation of free relativistic particles [ε=(M 2 c 4 +c 2 p 2 ) 1/2 −Mc 2 ] is studied rigorously. For massless bosons (ε=cp), the condensation transition of third (second) order occurs in2 (3) dimensions (D). The molar heat capacity follows the T 2 (T 3 ) law below the condensation temperature Tc [k B Tc=(2πħ 2 c 2 n/1.645) 1/2 [(π 2 ħ 3 c 3 n/1.202) 1/3 ], reaches4.38 (10.8) R at T=Tc, and approaches (...) the high-temperature-limit value2 (3) R with no jump (a jump equal to6.75R) in2 (3)D. For finite-mass (M) bosons, the phase transition occurs only in3D with the condensation temperature Tc always smaller than that of the corresponding nonrelativistic bosons [ε=(2M) −1 p 2 ]. If the mass M is reduced to zero, the condensation temperature Tc grows monotonically and reaches eventually that of massless relativistic bosons. This mass-dependence of Tc is therefore distinct from the case of nonrelativistic bosons, where Tc grows to infinity as M →0. A brief discussion is given for a possible connection with the normal-to-super transition of the independently moving Cooper pairs (bosons). (shrink)

This paper explores one aspect of the political in the early Hegel, that of criminal action and its relationship to the concept of recognition in the System of Ethical Life. While it is clear that in this work Hegel thinks that criminal action plays an important role in the transformation of simple ethical communities, it is not clear that, for Hegel, the formal character of crime in the struggle for recognition is anything but negative. I attempt to show how this (...) role for crime leads Hegel to a legalistic conception of Right that has no solid connection with recognition as a social force. (shrink)

Iyengar Yoga Wisdom & Practice" is a practical and an inspiring anthology of Iyengar's insights into yoga, life and the path to peace and happiness. Yoga practice lies at the heart of the book, and it is illustrated with over 60 new step-by-step sequences of yoga postures specially shot in India and accompanied by Iyengar's illuminating observations on technique, their significance, and their benefits. This book not only presents Iyengar's practical advice on how to perform key yoga postures, but also (...) draws on a wide range of other material taken from interviews and world lecture tours, to the many texts Iyengar has written about yoga and about his own life's journey. (shrink)

The Socio-Cultural pluralism and its fabrics in our society have been under the threat of religious fundamentalism and ideological extremism, which firmly believe that there can only one way of true expression and all other forms, are either substandard or false. This attitude has torn away the world into different isolated islands of human settlements. This state of affair is the outcome of multidimensional causes and one among them, no doubt, is related to one of the central issues of Philosophy, (...) i.e., the relation between ‘one and many’. The ontological dimension of the problem of ‘one and many’ cannot be solved withouthaving the proper understanding of epistemological solutions. The epistemic tools of the Advaita Vedanta are powerful enough to suggest pragmatic solutions to the good old problem of ‘one and many’ that attains new relevance in the era of Globalization. The logic of identity in difference and the logic of difference are the two types of logical systems, which are instrumental for the formulation of various types of claims to know of the western tradition. The logic of identity in difference has been clearly designed and defined by the classical logic or the Aristotelian logic. The symbolic logic encarves the various nuances of the logic of difference. The Advaita System has envisaged a new logic i.e., the logic of identity, which is implicit in the Upanisdic mahavakyya ‘Ayam Āthmam Brahma’. The paper intents to explore the possibility of application of the logic of identity in socio-cultural issues of the present day world. (shrink)

Increasingly, national governments across the globe are prioritizing investments in neuroscience. Currently, seven active or in-development national-level brain research initiatives exist, spanning four continents. Engaging with the underlying values and ethical concerns that drive brain research across cultural and continental divides is critical to future research. Culture influences what kinds of science are supported and where science can be conducted through ethical frameworks and evaluations of risk. Neuroscientists and philosophers alike have found themselves together encountering perennial questions; these questions are (...) engaged by the field of neuroethics, related to the nature of understanding the self and identity, the existence and meaning of free will, defining the role of reason in human behavior, and more. With this Perspective article, we aim to prioritize and advance to the foreground a list of neuroethics questions for neuroscientists operating in the context of these international brain initiatives. (shrink)

The unknown nature of tomorrow’s research makes informed consent in biobank research a challenge. Whether the consent given by biobank participants is ‘broad’ or ‘narrow’, the ever present question remains the same: are new activities covered by the original consent? In this article, we focus on the meaning of, and the relation between, broad consent and re-consent in biobank research. We argue that broad consent should be understood as consenting to a framework—a framework which covers aims, core conditions for acceptable (...) use, governance and how these affect participants. Changes that alter the framework in a fundamental way call for re-consent. Three biobank cases of current international interest are used to debate when re-consent is an ethical necessity: whole-genome sequencing, data sharing and commercial utilization. These reflections give us a more nuanced view on what consent is for. We claim that the introduction of broad consents in biobank research has not represented a betrayal of individual participant interests, as some critics have asserted. Broad consents combined with the possible use of re-consent are in certain settings not inferior, but rather ethically superior to narrow consents. In population-based research biobanks, they allow for a reconciliation between individual interest and public matters in society at large. (shrink)

In this paper I argue that Direct realism is less prone to internal incoherence as a theory of knowledge than alternative theories. The theory of Direct realism best grounds our capacity for cognition of the external world, whereas other epistemological theories claim to ground our capacity for cognition, but end in skepticism in the final analysis. I propose to show this contrast by bringing in different theories of a well-known Indirect realist, Bertrand Russell. Illustrating this point mainly through Russell makes (...) the approach purely historical in nature even when the paper includes a brief discussion of two theories in the current debate that support Direct realism. (shrink)

Nobody claims to be a proponent of white feminism, but according to the critique presented in this article, many in fact are. I argue that feminism that does not take multiple axes of oppression into account is bad in three ways: it strategically undermines solidarity between women; it risks inconsistency by advocating justice and equality for some women but not all; and it impedes the ultimate function of feminism function by employing epistemological “master’s tools” that stand in antithesis to feminist (...) emancipatory work. In investigating ethnocentrism in feminism, I develop the idea of latent ethnocentrism, which occupies the space between meaning that is generated from reference to the self and overt racism. I identify an epistemological prong in the ethnocentrism charge against feminism, where I draw on bell hooks’ interlocking axes-model of oppression to answer why the ethnocentrism problem is important for feminism and what its underlying epistemological causes are. I draw on Uma Narayan’s destabilization of cultural dualisms to argue that they do not serve emancipatory agendas. There is a mutually constitutive relation between language that informs our understanding, on the one hand, and the political agendas that produce this language to sustain the male and the western norm as center, on the other hand. I call this circular and reciprocally reinforcing mechanism the episteme-politic. I conclude that the ethnocentrism problem is not merely an issue of strategy or feminist consistency but of shooting oneself in the foot by uncritically accepting patriarchal concepts for feminist politics. (shrink)

BackgroundStudies on different methods to supplement the traditional informed consent process have generated conflicting results. This study was designed to evaluate whether participants who received group counseling prior to administration of informed consent understood the key components of the study and the consent better than those who received individual counseling, based on the hypothesis that group counseling would foster discussion among potential participants and enhance their understanding of the informed consent.MethodsParents of children participating in a trial of nutritional supplementation were (...) randomized to receive either group counseling or individual counseling prior to administration of the informed consent. To assess the participant's comprehension, a structured questionnaire was administered approximately 48-72 hours afterwards by interviewers who were blinded to the allocation group of the respondents.ResultsA total of 128 parents were recruited and follow up was established with 118 (90.2%) for the study. All respondents were aware of their child's participation in a research study and the details of sample collection. However, their understanding of study purpose, randomization and withdrawal was poor. There was no difference in comprehension of key elements of the informed consent between the intervention and control arm.ConclusionsThe results suggest that the group counseling might not influence the overall comprehension of the informed consent process. Further research is required to devise better ways of improving participants' understanding of randomization in clinical trials.Trial RegistrationClinical Trial Registry - India (CTRI): CTRI/2009/091/000612. (shrink)