3,398 research outputs found
Shaftesbury on the beauty of nature
Many people today glorify wild nature. This attitude is diametrically opposed to the denigration of wild nature that was common in the seventeenth century. One of the most significant initiators of the modern revaluation of nature was Anthony Ashley Cooper, the third Earl of Shaftesbury (1671–1713). I elucidate here Shaftesbury’s pivotal view of nature. I show how that view emerged as Shaftesbury’s solution to a problem he took to be of the deepest philosophical and personal importance: the problem of how worship of God can be both transportingly emotional and entirely rational. In section 1 I sketch the denigration of wild nature in two of Shaftesbury’s predecessors: Burnet and Locke. I next turn to Shaftesbury’s problem, describing in section 2 the love of God he aspired to and in section 3 his commitment to rational religion. I then explain Shaftesbury’s solution, describing in section 4 his view of beauty in general and in section 5 his view of the beauty of nature
A geometric proof of the Kochen-Specker no-go theorem
We give a short geometric proof of the Kochen-Specker no-go theorem for
non-contextual hidden variables models. Note added to this version: I
understand from Jan-Aake Larsson that the construction we give here actually
contains the original Kochen-Specker construction as well as many others (Bell,
Conway and Kochen, Schuette, perhaps also Peres).Comment: This paper appeared some years ago, before the author was aware of
quant-ph. It is relevant to recent developments concerning Kochen-Specker
theorem
Confidence and accuracy in person perception: Do we know what we think we know about our relationship partners?
Down-regulation of CD46 by Piliated Neisseria gonorrhoeae
Human membrane cofactor protein (CD46) protects host cells against complement attack and may function as a receptor for pathogenic Neisseriae. We assessed CD46 expression in the human cervical cell line ME-180 after exposure to Neisseria gonorrhoeae. Piliated but not nonpiliated gonococci adhered to cells and produced up to an 80% reduction in CD46 surface expression by 6 h that persisted for at least 24 h. This response required a minimum multiplicity of infection of 10 and was not prevented by antibodies to CD46. CD46 down-regulation was not attributable to intracellular retention or a global or specific shutdown of mRNA or protein synthesis. Substantial quantities of CD46 were found in the supernatants, indicating a specific shedding of this protein. Adherent gonococci lacking the pilus retraction protein PilT did not down-regulate CD46 but de-repression of pilT expression restored CD46 down-regulation. After experimental infection of human volunteers with a gonococcal variant incapable of inducing CD46 down-regulation, variants of this strain were reisolated that exhibited CD46 down-regulation. Pilus-mediated interactions of gonococci with human epithelial cells results in a pathogen-induced manipulation of the host cell environment in which a membrane protein is removed from epithelial cells by liberation into the surrounding milieu
2008. Sentimentalist pluralism: moral psychology and philosophical ethics
When making moral judgments, people are typically guided by a plurality of moral rules. These rules owe their existence to human emotions but are not simply equivalent to those emotions. And people's moral judgments ought to be guided by a plurality of emotion-based rules. The view just stated combines three positions on moral judgment: [1] moral sentimentalism, which holds that sentiments play an essential role in moral judgment, 1 [2] descriptive moral pluralism, which holds that commonsense moral judgment is guided by a plurality of moral rules, 2 and [3] prescriptive moral pluralism, which holds that moral judgment ought to be guided by a plurality of moral rules. In what follows, we will argue for all three positions. We will not present a comprehensive case for these positions nor address many of the arguments philosophers have developed against them. What we will try to show is that recent psychological work supports sentimentalist pluralism in both its descriptive and prescriptive forms
Development of the ChatGPT, Generative Artificial Intelligence and Natural Large Language Models for Accountable Reporting and Use (CANGARU) Guidelines
The swift progress and ubiquitous adoption of Generative AI (GAI), Generative
Pre-trained Transformers (GPTs), and large language models (LLMs) like ChatGPT,
have spurred queries about their ethical application, use, and disclosure in
scholarly research and scientific productions. A few publishers and journals
have recently created their own sets of rules; however, the absence of a
unified approach may lead to a 'Babel Tower Effect,' potentially resulting in
confusion rather than desired standardization. In response to this, we present
the ChatGPT, Generative Artificial Intelligence, and Natural Large Language
Models for Accountable Reporting and Use Guidelines (CANGARU) initiative, with
the aim of fostering a cross-disciplinary global inclusive consensus on the
ethical use, disclosure, and proper reporting of GAI/GPT/LLM technologies in
academia. The present protocol consists of four distinct parts: a) an ongoing
systematic review of GAI/GPT/LLM applications to understand the linked ideas,
findings, and reporting standards in scholarly research, and to formulate
guidelines for its use and disclosure, b) a bibliometric analysis of existing
author guidelines in journals that mention GAI/GPT/LLM, with the goal of
evaluating existing guidelines, analyzing the disparity in their
recommendations, and identifying common rules that can be brought into the
Delphi consensus process, c) a Delphi survey to establish agreement on the
items for the guidelines, ensuring principled GAI/GPT/LLM use, disclosure, and
reporting in academia, and d) the subsequent development and dissemination of
the finalized guidelines and their supplementary explanation and elaboration
documents.Comment: 20 pages, 1 figure, protoco
Genetic Classification of Populations using Supervised Learning
There are many instances in genetics in which we wish to determine whether
two candidate populations are distinguishable on the basis of their genetic
structure. Examples include populations which are geographically separated,
case--control studies and quality control (when participants in a study have
been genotyped at different laboratories). This latter application is of
particular importance in the era of large scale genome wide association
studies, when collections of individuals genotyped at different locations are
being merged to provide increased power. The traditional method for detecting
structure within a population is some form of exploratory technique such as
principal components analysis. Such methods, which do not utilise our prior
knowledge of the membership of the candidate populations. are termed
\emph{unsupervised}. Supervised methods, on the other hand are able to utilise
this prior knowledge when it is available.
In this paper we demonstrate that in such cases modern supervised approaches
are a more appropriate tool for detecting genetic differences between
populations. We apply two such methods, (neural networks and support vector
machines) to the classification of three populations (two from Scotland and one
from Bulgaria). The sensitivity exhibited by both these methods is considerably
higher than that attained by principal components analysis and in fact
comfortably exceeds a recently conjectured theoretical limit on the sensitivity
of unsupervised methods. In particular, our methods can distinguish between the
two Scottish populations, where principal components analysis cannot. We
suggest, on the basis of our results that a supervised learning approach should
be the method of choice when classifying individuals into pre-defined
populations, particularly in quality control for large scale genome wide
association studies.Comment: Accepted PLOS On
In vivo function of the murid herpesvirus-4 ribonucleotide reductase small subunit
The difficulty of eliminating herpesvirus carriage makes host entry a key target for infection control. However, its viral requirements are poorly defined. Murid herpesvirus-4 (MuHV-4) can potentially provide insights into gammaherpesvirus host entry. Upper respiratory tract infection requires the MuHV-4 thymidine kinase (TK) and ribonucleotide reductase large subunit (RNR-L), suggesting a need for increased nucleotide production. However, both TK and RNR-L are likely to be multifunctional. We therefore tested further the importance of nucleotide production by disrupting the MuHV-4 ribonucleotide reductase small subunit (RNR-S). This caused a similar attenuation to RNR-L disruption: despite reduced intra-host spread, invasive inoculations still established infection, whereas a non-invasive upper respiratory tract inoculation did so only at high dose. Histological analysis showed that RNR-S−, RNR-L− and TK− viruses all infected cells in the olfactory neuroepithelium but unlike wild-type virus then failed to spread. Thus captured host nucleotide metabolism enzymes, up to now defined mainly as important for alphaherpesvirus reactivation in neurons, also have a key role in gammaherpesvirus host entry. This seemed to reflect a requirement for lytic replication to occur in a terminally differentiated cell before a viable pool of latent genomes could be established
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Life-Expectancy Disparities Among Adults With HIV in the United States and Canada: The Impact of a Reduction in Drug- and Alcohol-Related Deaths Using the Lives Saved Simulation Model.
Improvements in life expectancy among people living with human immunodeficiency virus (PLWH) receiving antiretroviral treatment in the United States and Canada might differ among key populations. Given the difference in substance use among key populations and the current opioid epidemic, drug- and alcohol-related deaths might be contributing to the disparities in life expectancy. We sought to estimate life expectancy at age 20 years in key populations (and their comparison groups) in 3 time periods (2004-2007, 2008-2011, and 2012-2015) and the potential increase in expected life expectancy with a simulated 20% reduction in drug- and alcohol-related deaths using the novel Lives Saved Simulation model. Among 92,289 PLWH, life expectancy increased in all key populations and comparison groups from 2004-2007 to 2012-2015. Disparities in survival of approximately a decade persisted among black versus white men who have sex with men and people with (vs. without) a history of injection drug use. A 20% reduction in drug- and alcohol-related mortality would have the greatest life-expectancy benefit for black men who have sex with men, white women, and people with a history of injection drug use. Our findings suggest that preventing drug- and alcohol-related deaths among PLWH could narrow disparities in life expectancy among some key populations, but other causes of death must be addressed to further narrow the disparities
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