Carrion and dung odours of various flowers have traditionally been considered an adaptation for attracting the flies and beetles that pollinate them. While we accept the role of such odours in pollinator attraction, we propose that they may also have another, overlooked, anti‐herbivore defensive function. We suggest that such odours may deter mammalian herbivores, especially during the critical period of flowering. Carrion odour is a good predictor for two potential dangers to mammalian herbivores: (1) pathogenic microbes, (2) proximity of carnivores. (...) Similarly, dung odour predicts faeces‐contaminated habitats that present high risks of parasitism. These are two new types of repulsive olfactory aposematic mimicry by plants: (1) olfactory feigning of carcass (thanatosis), a well‐known behavioural defensive strategy in animals, (2) olfactory mimicry of faeces, which also has a defensive visual parallel in animals. (shrink)

The main point of our hypothesis “coloration undermines camouflage” is that many color patterns in plants undermine the camouflage of invertebrate herbivores, especially insects, thus exposing them to predation and causing them to avoid plant organs with unsuitable coloration, to the benefit of the plants. This is a common case of “the enemy of my enemy is my friend” and a visual parallel of the chemical signals that plants emit to call wasps when attacked by caterpillars. Moreover, this is also (...) a common natural version of the well‐known case of industrial melanism, which illustrates the great importance of plant‐based camouflage for herbivorous insects and can serve as an independent test for our hypothesis. We claim that the enormous variations in coloration of leaves, petioles and stems as well as of flowers and fruits undermine the camouflage of invertebrate herbivores, especially insects. We assume that the same principle might operate in certain animal–parasite interactions. Our hypothesis, however, does not contrast or exclude other previous or future explanations of specific types of plant coloration. Traits such as coloration that have more than one type of benefit may be selected for by several agents and evolve more rapidly than ones with a single type of advantage. BioEssays 26:1126–1130, 2004. © 2004 Wiley Periodicals, Inc. (shrink)

Volume 20, Issue 4, May 2020, Page 25-27.

The existence of a topological double-covering for the GL(n, R) and diffeomorphism groups is reviewed. These groups do not have finite-dimensional faithful representations. An explicit construction and the classification of all\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$\overline {SL} $$ \end{document}(n, R), n=3,4 unitary irreducible representations is presented. Infinite-component spinorial and tensorial\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$\overline {SL} $$ \end{document} fields, “manifields”, are introduced. Particle content of the ladder manifields, as given by (...) the\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$\overline {SL} $$ \end{document}(3, R) “little” group, is determined. The manifields are lifted to the corresponding world spinorial and tensorial manifields by making use of generalized infinite-component frame fields. World manifields transform w.r.t. corresponding\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$\overline {Diff} $$ \end{document} representations, which are constructed explicitly. (shrink)

“CHN≓ (1966)was an algebraic algorithm which reproduced and extended the predictions of the “non-interacting≓ quark model in the asymptotic high-energy region. It wus formulated within the conceptual framework of on- mass- shell physics and of the complex angular-momentum plane. Prior to the advent of the standard model, it was reinterpreted in terms of the Melosh transformation relating “current≓ to “constituent≓ quarks. It is now lied up to the QCD paradigm.

We relate personal encounters of three kinds with geometrical approaches in the development of a relativistic quantum field theory of the fundamental interactions—including interactions with Nathan Rosen. We characterize the geometrical structures involved and discuss the more recent attempts to develop a unified theory based on a Klein-Kaluza contraction of the eightfold extended supergravity.

It's time to engage with human society as a society. It seems that the individualistic age in which we live has exhausted itself. It is time to take a collective mental account of the way we live, the relationship between people and society, and what social structure we need." "The importance of human society, and offers various suggestions for improving the existing social structure, while emphasizing the failures in the economy related to the existing socio-economic system, which led to the (...) recent economic crisis. The book is intended to stimulate thought on social issues. - translation from the back cover. (shrink)

Since 1961, the experimental exploration at the fundamental level of physical reality has surprised physists by revealing to them a highly geometric scenery. Like Einstein's (classical) theory of gravity, the “standard model,” describing the strong, weak, and electromagnetic interaction, testifies in favor of Plato's reported allegation.

Many studies have attempted to identify measures that predict reading abilities. The results of these studies may be inclined to over-identification of children considered at risk in kindergarten but who achieve parity in reading by the end of first grade. Therefore, the current study sought to analyze the specific cognitive and linguistic predictors of reading accuracy and reading speed separately. Additionally, the study examined if it is possible to use empirically validated measures to distinguish between children who are not ready (...) to learn how to read in kindergarten but manage to acquire reading skills by the end of first grade, and those who continue to exhibit difficulties. The study followed 98 kindergarteners aged 4 years 10 months to six years from three different schools, who were taught how to read in kindergarten. Multiple measures of general cognitive skills, linguistic abilities, and reading abilities were measured at three different points in time: the beginning of kindergarten, the end of kindergarten, and the end of first grade. The study found that most of the children with good literacy and cognitive abilities learned how to read by the end of kindergarten. The analysis revealed a significant difference in cognitive abilities, such as executive functions and memory, which distinguished between the ability to acquire fluent reading and accurate reading. The study was able to successfully distinguish between “children with difficulties” and “un-ready” children. These results have various implications, especially in regard to the identification of and intervention with kindergarten children at risk for reading disabilities. (shrink)

We review the mathematical theory ofSL(n, R) and its double-covering group $\overline {SL} (n,R)$ , especially forn = 2, 3, 4. After discussing a variety of physical applications, we show that $\overline {SL} (3,R)$ provides holonomic curved space (“world”) spinors with an infinite number of components. We construct the relevant holonomic “manifield” and discuss the gravitational interaction of a proton as an example.

We review the issues of nonseparability and seemingly acausal propagation of information in EPR, as displayed by experiments and the failure of Bell's inequalities. We show that global effects are in the very nature of the geometric structure of modern physical theories, occurring even at the classical level. The Aharonov-Bohm effect, magnetic monopoles, instantons, etc. result from the topology and homotopy features of the fiber bundle manifolds of gauge theories. The conservation of probabilities, a supposedly highly quantum effect, is also (...) achieved through global geometry equations. The EPR observables all fit in such geometries, and space-time is a truncated representation and is not the correct arena for their understanding. Relativistic quantum field theory represents the global action of the measurement operators as the zero-momentum (and therefore spatially infinitely spread) limit of their wave functions (form factors). We also analyze the collapse of the state vector as a case of spontaneous symmetry breakdown in the apparatus-observed state interaction. (shrink)

Schrödinger's approach was analytical, but it is equivalent to an algebraic treatment. We review the evolution of group theory as a physical tool and its application to the Hilbert space of Schrödinger's eigenstates. Special emphasis is put on recent results relating to the relativistic quantized string.

We illustrate, using a simple model, that in the usual formulation the time-component of the Klein–Gordon current is not generally positive definite even if one restricts allowed solutions to those with positive frequencies. Since in de Broglie's theory of particle trajectories the particle follows the current this leads to difficulties of interpretation, with the appearance of trajectories which are closed loops in space-time and velocities not limited from above. We show that at least this pathology can be avoided if one (...) adapts in a covariant form the formulation of relativistic point particle dynamics proposed by Gitman and Tyutin. (shrink)

Peterson, Karlawish, and Largent’s “Supported Decision Making with People at the Margins of Autonomy” brings welcome attention to the rights of people with cognitive impairment and provides...

Einstein's general relativity theory describes very well the gravitational phenomena in themacroscopic world. In themicroscopic domain of elementary particles, however, it does not exhibit gauge invariance or approximate Bjorken type scaling, properties which are believed to be indispensible for arenormalizable field theory. We argue that thelocal extension of space-time symmetries, such as of Lorentz and scale invariance, provides the clue for improvement. Eventually, this leads to aGL(4, R)-gauge approach to gravity in which the metric and the affine connection acquire the (...) status ofindependent fields. The Yang-Mills type field equations, the Noether identities, and conformal models of gravity are discussed within this framework. After symmetry breaking, Einstein's GR surfaces as an effective “low-energy” theory. (shrink)

J'appelle ‘morale', dans le sens le plus général du mot, l'ensemble des règles qui doivent diriger l'activité libre de l'homme. Toutes dérivent d'un principe commun, par une méthode commune ; toutes répondent, dans l'une des voies ouvertes à l'activité humaine, à la question : Qu'est-ce qui doit être? Ce qui doit être, c'est ce qui est conforme à une fin rationnelle, ce qui est rationnellement souhaitable. Pourtant, les philosophes ne s'accordent pas sur l'essence du devoir-être et des divergences apparaissent entre (...) eux quant à la définition du devoir-être. Désigne-t-il une loi morale, un idéal, un ordre transcendant ou même un droit? (shrink)

La génétique est une science qui avance à pas de géants et influence de plus en plus nos perceptions des problèmes de société et de santé. Selon le philosophe-médecin Hank ten Have, "La culture occidentale serait profondément entraînée dans un processus de généticisation" qui touche de nombreuses sphères de la vie humaine. Comment cette nouvelle "donne" affecte-t-elle les questions de responsabilité? Comment dessiner les contours de cette notion? Le glissement de la génétique vers la "généticisation" entraîne-t-il une déresponsabilisation ou même (...) la destruction des valeurs démocratiques? Les normes juridiques et les encadrements éthiques actuels sont-ils suffisants pour encadrer les progrès de la génétique? Comment une société peut-elle faire face à la "généticisation"? Les contributions du présent ouvrage sont issues du septième séminaire d'experts de l'IIREB et émanent d'experts franco-québécois de disciplines variées, juristes, médecins, philosophes, historiens, sociologues, éthiciens, anthropologues qui ont confronté leurs points de vue sur cette question. Puisse cet ouvrage collectif contribuer, tant pour les citoyens, les pouvoirs publics et les chercheurs à enrichir leur réflexion! (shrink)

The ability of two or more cells to unite to form a new syncytial cell has been utilized in metazoans throughout evolution to form many complex organs, such as muscles, bones and placentae. This requires migration, recognition and adhesion between cells together with fusion of their plasma membranes and rearrangement of their cytoplasmic contents. Until recently, understanding of the mechanisms of cell fusion was restricted to fusion between enveloped viruses and their target cells. The identification of new factors that take (...) part in developmental cell fusion in C. elegans opens the way to understanding how cells fuse and what the functions of this process are. In this review, we describe current knowledge on the mechanisms and putative roles of developmental cell fusion in C. elegans and how cell fusion is regulated, together with other intercellular processes to promote organogenesis. BioEssays 25:672–682, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Kelime olarak ‘öncekiler’ anlamında selef kökünden türetilen Salafism, ‘öncekilerin izini takip edenlerin yolu’ demektir ve bir tür dinsel tutuculuk ve muhafazakârlık anlamına gelmektedir. İslam geleneğinde Islamic tenetlara katı ve literal bağlılığı ve dinin saf asıllarına dönüşü ifade eden Salafism, günümüzde İslami ilimler, siyaset bilimi ve uluslararası ilişkiler gibi alanlarda dinsel radikalizm ve köktencilikle eşanlamlı olarak kullanılmaktadır. Geleneksel formuyla, dinsel akılcılığa ve yorum yanlısı olmaya karşı bir duruş üzerinden kendini kuran Salafism, din içi çoğulculuğa ve sekülerizme karşı öze dönüşcü bir tepkiyi (...) temsil etmektedir. Dinin özüne dönüşü savunan Salafi paradigma, Müslüman medeniyetinin düşünsel ve sanatsal başarı ve ürünlerine de kuşkuyla bakar, bu yönüyle de kültür karşıtı bir tutumu temsil eder. Selefi eylemci grupların İslam medeniyetine ve diğer kültürlere verdikleri zarar bunun somut örneklerini oluşturmaktadır. Bu çalışma modern zamanlarda Salafism parlamasına yol açan nedenler üzerinde yoğunlaşmaktadır. Çalışmada, toplumsal değişim, modernleşme ve sekülerleşme karşısında hangi dinsel ve toplumsal kaygıları temsil ettiği analiz edilmektedir. Salafismin Sünnilik ile ilişkisi incelenmekte ve onu Sünnîliğin dışında göstermeye çalışan yaklaşımların yanıltıcı yanlarını vurgulamaktadır. Disiplinler arası yaklaşımla konuyu ele alan çalışma, teoloji ile siyaset bilimi ve uluslararası ilişkilerin kesişme alanında analizler içermektedir. Selefilik ile ilgili kavramsal analizler, bu kavramın İslam öncesi köklerini ortaya koymaktadır. Aslında her toplumda rastlanan ve geçmiş bir öz atfetme ve bugünü yönetme ihtiyacı Araplarda ‘ataların yoluna tâbi olma’ şeklinde belirir. Geçmişin kutsanması, yeniliklerden ve farklılıklardan kuşku duymayı doğurur. Selefîlik tarafından temsil edilen ‘İslamî özcülük’ değişime karşı sabitliği, çoğulculuğa karşı özcülüğü, akla karşı nassı, ibtida yerine ittiba’yı savunur. Dinî konularda katı nassçı ve literal tutumu benimsediği için kelam, felsefe ve tasavvufu dinden uzaklaşma sayar. Tarihe bakışta kötüye gidiş, özden uzaklaşma ve çürüme düşüncesine bağlıdır. Modern dönemlerde İslam dünyası çok yönlü bir kriz ve çöküş yaşamıştır. Siyasal alanda başlayan sorunlar kimlik ve değerler alanına doğru genişlemiştir. Kimliği, özü ve inancı koruma kaygıları radikal bir tutuculuk olarak selefiliği beslemiştir. Krizlerin artarak devam ettiği İslam dünyasında Selefilik bir düşünce, inanç, yaşam tarzı ve eylem türü olarak ilgi çekmektedir. Ancak yaşanabilir bir alternatif üretmek yerine tepkisel bir duruşu temsil etmekte, minimal ve sert bir dinî yaşantıyı savunmaktadır. Ayrıca kültüre ve sanata yönelik sert yaklaşımı, İslam medeniyeti açısından nihilist bir bakışı ifade etmektedir. Sünnî dünyada Selefilik ile ilgili bir kafa karışıklığı göze çarpmaktadır. Bu karışıklık tarihsel ve teolojik olarak selefiliğin Sünnilik tarafından benimsenmesi ile ilgilidir. Oysa güçlenen yeni Selefilik mevcut Sünnî kimliğini oluşturan unsurları reddetmektedir. Bu Sünnilik açısından kriz içeren bir durumdur. Kelam, fıkıh ve tasavvuf bilgisine dayalı kapsayıcı Sünnilik ile katı nasscı ve dışlayıcı Selefilik arasındaki teolojik gerilim hala devam etmektedir. (shrink)

At first glance, there seems to be a striking similarity in the notion of innate and free natural awareness of the fourteenth-century Tibetan philosopher and teacher Long-chenpa, and the notion of Inner Experience of the twentieth-century French philosopher Georges Bataille. For Longchenpa, innate natural awareness is synonymous with Buddha-nature—the pristine awareness that directly perceives reality as it is, without the mediation of beliefs, labels, or any other means stemming from the individual’s conditioned existence. Abiding in that state gives one the (...) capacity to release oneself from suffering. For Bataille, Inner Experience is naked, free from ties, even from an origin, in which its.. (shrink)

The Psychology of the Yogas explores the dissonance between the promises of the yogic quest and psychological states of crisis.

Every person has his/her own unique signature that is used mainly for the purposes of personal identification and verification of important documents or legal transactions. There are two kinds of signature verification: static and dynamic. Static(off-line) verification is the process of verifying an electronic or document signature after it has been made, while dynamic(on-line) verification takes place as a person creates his/her signature on a digital tablet or a similar device. Offline signature verification is not efficient and slow for a (...) large number of documents. To overcome the drawbacks of offline signature verification, we have seen a growth in online biometric personal verification such as fingerprints, eye scan etc. In this paper we created CNN model using python for offline signature and after training and validating, the accuracy of testing was 99.70%. (shrink)

En este ensayo me propongo estudiar cómo Óscar Liera, en su texto dramático Las fábulas perversas, echa mano de los recursos de la farsa para construir una visión profundamente crítica de un episodio relevante de la historia de México. El dramaturgo recrea la figura de Fray Servando Teresa de Mier y lo convierte, mediante los tonos de la risa, en un referente y un símbolo de libertad, que se opone a los abusos del poder al tiempo que desenmascara sus fábulas (...) perversas. (shrink)

In their article, Friesen et al. (2023) discuss two challenging roles the IRBs are playing: protecting research participants from research-related risks and promoting inclusion of diverse populatio...

In his article, Ismaili M’hamdi argues that a neutralist approach in public health policy might turn into a gap that separates citizens who endure preventable poor conditions from the state...

Two different concepts of distinguishability are often mixed up in attempts to derive in quantum mechanics the (anti)symmetry of the wave function from indistinguishability of identical particles. Some of these attempts are analyzed and shown to be defective. It is argued that, although identical particles should be considered as observationally indistinguishable in (anti)symmetric states, they may be considered to be conceptually distinguishable. These two notions of (in)distinguishability have quite different physical origins, the former one being related to observations while the (...) latter has to do with the preparation of the system. (shrink)

There has been a spurt in both fundamental and translational research that examines the underlying mechanisms of the human microbiome in psychiatric disorders. The personalized and dynamic features of the human microbiome suggest the potential of its manipulation for precision psychiatry in ways to improve mental health and avoid disease. However, findings in the field of microbiome also raise philosophical and ethical questions. From a philosophical point of view, they may yet be another attempt at providing a biological cause for (...) phenomena that ultimately cannot be so easily localized. From an ethical point of view, it is relevant that the human gut microbiome comprises data on the individual’s lifestyle, disease history, previous medications, and mental health. Massive datasets of microbiome sequences are collected to facilitate comparative studies to identify specific links between the microbiome and mental health. Although this emerging research domain may show promise for psychiatric patients, it is surrounded by ethical challenges regarding patient privacy, health risks, effects on personal identity, and concerns about responsibility. This narrative overview displays the roles and advances of microbiome research in psychiatry and discusses the philosophical and ethical implications of microbiome big data and microbiome-based interventions for psychiatric patients. We also investigate whether these issues are really “new,” or “old wine in new bottles.”. (shrink)

Perceptual processes differ from cognitive, this paper argues, in functioning to be causally controlled by proximal stimuli, and being modular, at least in a modest sense that excludes their being isotropic in Jerry Fodor's sense. This claim agrees with such theorists as Jacob Beck and Ben Phillips that a function of stimulus-control is needed for perceptual status. In support of this necessity claim, I argue, inter alia, that E.J. Green's recent architectural account misclassifies processes deploying knowledge of grammar as perceptual. (...) _Pace_ Beck and Phillips, however, I argue a function of stimulus-control is insufficient for perceptual as opposed to cognitive status. One consideration in favour of such insufficiency, noted but (I argue) not convincingly rebutted by these theorists, concerns perpetually grounded demonstrative thought. Two other considerations trade on the fact that a function of stimulus-control can arise not from blind nature but intentional design or social institutions, where so-functioning processes may but need not be perceptual. I offer two cases where such processes are cognitive, viz. skilful play-by-play announcing of ongoing events, and voluntary visualizing of ongoing events under the guidance of apt play-by-play announcements, dubbed announcement-driven visualizing (ADV). The cognitive status of these three diverse phenomena cannot be explained by an absence of a perception-like representational format or content (for ADV has such) or by a presence of personal-level mental states causally mediating between stimuli and outputs (for perception has such). A bettter explanation invokes, I argue, the non-modular character of the generating process. (shrink)

Especially nice models of intuitionistic set theories are realizability models $V$, where $\mathcal A$ is an applicative structure or partial combinatory algebra. This paper is concerned with the preservation of various choice principles in $V$ if assumed in the underlying universe $V$, adopting Constructive Zermelo–Fraenkel as background theory for all of these investigations. Examples of choice principles are the axiom schemes of countable choice, dependent choice, relativized dependent choice and the presentation axiom. It is shown that any of these axioms (...) holds in $V$ for every applicative structure $\mathcal A$ if it holds in the background universe.1 It is also shown that a weak form of the countable axiom of choice, $\textbf{AC}^{\boldsymbol{\omega, \omega }}$, is rendered true in any $V$ regardless of whether it holds in the background universe. The paper extends work by McCarty and Rathjen. (shrink)

Biobanking is a relatively new concept in Egypt. Building a good relationship with different stakeholders is essential for the social sustainability of biobanks. To establish this relationship, it is necessary to assess the attitude of different groups towards this concept. The objective of this work is to assess the knowledge, attitude, and opinions of Egyptian patients towards biobanking issues. We designed a structured survey to be administered to patients coming to the outpatient clinics in 3 university hospitals in Egypt. The (...) survey included questions estimating the level of knowledge about the term “Biobank”, together with questions about the attitudes and opinions about related issues. Two hundred and fifty-nine patients participated in the survey. Eighty-one percent of participants reported that they never heard about the term before. About 85% expressed that they would be willing to donate their samples for research and about 87% thought that sample donation did not contradict their religious beliefs. Fifty eight percent were willing to participate in a genetic research project, 27.8% supported sharing their sample with pharmaceutical companies, and 32.4% agreed to share their samples with institutions abroad. Although there is limited knowledge about biobanking among Egyptian patients, many had a positive attitude towards sample donation and didn’t show religious concerns against it. However, they showed concerns regarding participation in genetic research and with sharing their samples across borders or with pharmaceutical companies. Public education about biobanking is possible, taking into consideration the specific cultural and legal framework in Egypt. (shrink)

Nagappan, Kalokairinou, and Wexler (2021) raised a serious ethical question: Are off-label practices or direct-to-consumer medical devices offered to public exempted from clinical or research gover...

The definition of “personality” and related concepts is both unclear and not unified among medical, scientific, humanities and social sciences experts (i.e., essentialist, dynamic view of self, nar...

Les lecteurs de Machiavel forment une troupe nombreuse où se mêlent les philosophes et les rois, les empereurs et les tyrans. Le Prince est de toutes les oeuvres de la pensée politique la seule qui ait durablement accroché l'intérêt des hommes de gouvernement : Charles-Quint en avait fait un de ses livres de chevet, Frédéric II s'efforça de le réfuter, Napoléon voulut qu'il fût dans ses bibliothèques successives, Mussolini en écrivit une préface. Staline l'annota. Hitler dit l'avoir lu et relu. (...) Du côté des écrivains et philosophes, la liste est longue et prestigieuse : Bodin, Bacon, Marlowe, Spinoza, Montesquieu, Rousseau, Hegel, Nietzsche... Mais qu'y a-t-il donc dans ce livre ambigu, écrit avec brio et semé de contradictions? Pour tenter d'y voir clair, Philippe Bénéton mène une vaste enquête sur l'art d'écrire du Florentin : des explications de texte serrées, une analyse systématique des sources, la confrontation du témoin Machiavel avec l'histoire de son temps. D'étape en étape, les brouillards se dissipent. Machiavel apparaît comme un maître dans l'art de la rhétorique. Quant à son intention profonde, il s'avère qu'elle n'est guère au diapason de ce que dit la doxa contemporaine. Il y avait une énigme Machiavel : voilà sa solution machiavélique. (shrink)