Consider a specific type of fission where psychological continuity takes a branching form, and one of the offshoots comes into being later than the other offshoot. Let us say that the earlier offshoot comes into being in the left branch at t, and the later offshoot comes into being in the right branch at t+1. With regard to the question how many persons are involved in this case, three answers are worth considering: (i) The original subject persists up to t; (...) a distinct person comes into being immediately after t and continues to exist in the left branch; and the third person comes into being in the right branch at t+1. (ii) The original subject persists up to the moment immediately before t+1; a distinct person comes into being at t+1 and continues to exist in the left branch; and the third person comes into being in the right branch at t+1. (iii) The original subject continues to exist in the left branch; a distinct person comes into being in the right branch at t+1. For those who hold that personal identity consists in psychological continuity of some sort, the aforementioned three options exhaust the sensible ways of understanding how one persists in delayed fission. However, I argue that complications arise for each answer. Hence, delayed fission poses a challenge for the psychological approach to personal identity. (shrink)

There is a fallacy that is often involved in the interpretation of quantum experiments involving a certain type of separation such as the: double-slit experiments, which-way interferometer experiments, polarization analyzer experiments, Stern-Gerlach experiments, and quantum eraser experiments. The fallacy leads not only to flawed textbook accounts of these experiments but to flawed inferences about retrocausality in the context of delayed choice versions of separation experiments.

Finite agents such as human beings have reasoning and updating processes that are extended in time; consequently, there is always some lag between the point at which we gain new reasons and the point at which our attitudes have fully responded to those reasons. This phenomenon, which I call rational delay, poses a threat to the most common ways of formulating rational requirements on our attitudes, which do not allow rational beings to exhibit such delay. In this paper, I show (...) first how this problem undermines synchronic formulations of rational norms. Then I show how it likewise undermines the most natural diachronic modifications of these norms. Ultimately, I argue that a successful account of rational delay will reject norms that directly govern attitudes or states of mind like belief and intention altogether, in favor of norms that fundamentally concern temporally extended rational processes like deliberation. (shrink)

Globally, breast cancer is the most common cancer in women worldwide, it represents about 25.0% of all cancer cases. In developing countries, breast cancer is mainly discovered at a late stage, which has a negative impact on the prognosis. To determine the extent of, and the factors contributing to, delay in breast cancer presentation, and to evaluate the mammography screening practice in breast cancer Libyan women. A descriptive cross-sectional study was carried out on five hundred and one breast cancer patients (...) who attended the Oncology Outpatient Clinic of the Medical Department at Tripoli University Hospital and Tripoli Central Hospital during a period between February and August 2019, after the application of inclusion and exclusion criteria enrolled in the study. The mean age of the patients was 47.35±01.0 years, 55.1% of them were diagnosed in late stage (III and IV), and 30.9% of the patients were presented late (≥3 months). The time interval between the initial breast symptom and first presentation to a clinic ranged between 2nd day and up to three years, with a median time of 1.5 months, and the main factor of the delayed presentation to a clinic was a lack of knowledge about symptoms (33.5%). The study revealed a significant association between delayed presentation and older age (P<0.001), low educational level (P<0.001), low family income (P<0.001), unemployed women (P< 0.002), postmenopausal women (P<0.001), patients with negative family history (P<0.05). This study concluded that delayed presentation is found in less than a third of the study population, and lack of knowledge about breast cancer signs and symptoms is a common factor. Age, educational status, family income, unemployed women, menopausal status, and family history of breast cancer were all significant factors for delayed presentation. Improving women's awareness about breast cancer is needed and applying the policy of regular screening mammograms is a useful tool for early diagnosis and early treatment in Libya. (shrink)

We typically judge that hasteners are causes of what they hasten, while delayers are not causes of what they delay. These judgements, I suggest, are sensitive to an underlying metaphysical distinction. To see this, we need to pay attention to a relation that I call positive security-dependence, where an event E security-depends positively on an earlier event C just in case E could more easily have failed to occur if C had not occurred. I suggest that we judge that an (...) event C is a cause of a later event E only if E security-depends positively on C. This explains our causal judgements in typical cases of hastening and delaying as well as in atypical cases, where we judge that hasteners are not causes of what they hasten or that delayers are causes of what they delay. (shrink)

A long line of epistemologists including Sosa (2021), Feldman (2002), and Chisholm (1977) have argued that, at least for a certain class of questions that we take up, we should (or should aim to) close inquiry iff by closing inquiry we would meet a unique epistemic standard. I argue that no epistemic norm of this general form is true: there is not a single epistemic standard that demarcates the boundary between inquiries we are forbidden and obligated to close. In short, (...) such norms are false because they are insensitive to the potentially ambitious epistemic goals that agents may permissibly bring to bear on an inquiry. Focusing particularly on knowledge-oriented versions of the norm, I argue that ignorance has a positive role to play in epistemic life by licensing prolonged inquiry into questions that we especially care about. (shrink)

Supporting young researchers to peer-review and edit journal submissions will also accelerate their training, says Quan-Hoang Vuong. -/- *Citation: -/- Quan-Hoang Vuong. (2022, Sept. 11). Early career researchers can help fix peer review delays. Times Higher Education.

This article reflects on the 'Framework Agreement' signed between the NSCN (IM) and the Government of India and the present situation of the Nagas.

In Simultaneity and Delay: A Dialectical Theory of Staggered Time, the Canadian philosopher Jay Lampert challenges theories that define time in terms of absolute simultaneity and continuous succession. To counter these theories he introduces an alternative: the dialectic of simultaneity and delay. According to Lampert, this dialectic constitutes a temporal succession that is no longer structured as a continuous line, but that is built out of staggered time-flows and delayed reactions. The bulk of the book consists of an attempt to (...) give a conceptual order to the ‘unsystematic analyses of simultaneity and delay sprinkled through the history of philosophy’ (2). This conceptual analysis leads us through ancient (Plato and Plotinus), medieval (Origen) and late modern issues (Kant, Hegel and Lessing), as well as scientific discussions (Einstein, McTaggart), and culminates in the central chapter of the book, which attempts to show ‘how the problems of the great simultaneity philosophers - Husserl and Bergson - might be solved by the great delay philosophers - Derrida and Deleuze’ (147). In this review, I will focus on three points. 1. The problem of synchronization. 2. The problem of synthesis. 3. Theproblem of localization. (shrink)

In order to improve our understanding of the components that reflect functionally important processes during reward anticipation and consumption, we used principle components analyses (PCA) to separate and quantify averaged ERP data obtained from each stage of a modified monetary incentive delay (MID) task. Although a small number of recent ERP studies have reported that reward and loss cues potentiate ERPs during anticipation, action preparation, and consummatory stages of reward processing, these findings are inconsistent due to temporal and spatial overlap (...) between the relevant electrophysiological components. Our results show three components following cue presentation are sensitive to incentive cues (N1, P3a, P3b). In contrast to previous research, reward‐related enhancement occurred only in the P3b, with earlier components more sensitive to break‐even and loss cues. During feedback anticipation, we observed a lateralized centroparietal negativity that was sensitive to response hand but not cue type. We also show that use of PCA on ERPs reflecting reward consumption successfully separates the reward positivity from the independently modulated feedback‐P3. Last, we observe for the first time a new reward consumption component: a late negativity distributed over the left frontal pole. This component appears to be sensitive to response hand, especially in the context of monetary gain. These results illustrate that the time course and sensitivities of electrophysiological activity that follows incentive cues do not follow a simple heuristic in which reward incentive cues produce enhanced activity at all stages and substages. (shrink)

A decision problem where Causal Decision Theory (CDT) declines a free $1,000, with the foreseeable effect that the agent is $1,000 poorer, and in no other way better off, than if she had taken the offer.

The net benefit of vaccinating children is unclear, and vulnerable people worldwide should be prioritised instead, say Dominic Wilkinson, Ilora Finlay, and Andrew J Pollard. But Lisa Forsberg and Anthony Skelton argue that covid-19 vaccines have been approved for some children and that children should not be disadvantaged because of policy choices that impede global vaccination.

A common understanding of the role of a game developer includes establishing (or at least partially establishing) what is interactively and perceptually available in (video)game environments: what elements and behaviors those worlds include and allow, and what is – instead – left out of their ‘possibility horizon’. The term ‘possibility horizon’ references the Ancient Greek origin of the term ‘horizon’, ὄρος (oros), which denotes a frontier – a spatial limit. On this etymological foundation, ‘horizon’ is used here to indicate the (...) spatial and operational boundaries that a (video)game environment affords its players. This book chapter discusses a particular feeling that emerge in relation to playful encounters with the ‘possibility horizons’ of videogames. I am referring here to the realization, as a player, that a game environment can be experientially exhausted and is, as such, ultimately banal. In other words, I will examine how our deliberate engagement with the interactive environments of digital games can trigger sensations that are analogous to what Romantic authors referred to as Weltschmerz (‘world-weariness’). (shrink)

Longtermism is the view that the most urgent global priorities, and those to which we should devote the largest portion of our resources, are those that focus on (i) ensuring a long future for humanity, and perhaps sentient or intelligent life more generally, and (ii) improving the quality of the lives that inhabit that long future. While it is by no means the only one, the argument most commonly given for this conclusion is that these interventions have greater expected goodness (...) per unit of resource devoted to them than each of the other available interventions, including those that focus on the health and well-being of the current population. In this paper, I argue that, even if we grant the consequentialist ethics upon which this argument depends, and even if we grant one of the axiologies that are typically paired with that ethics to give the argument, we are not morally required to choose an option that maximises expected utility; indeed, we might not even be permitted to do so. Instead, I will argue, if the argument's consequentialism is correct, we should choose using a decision theory that is sensitive to risk, and allows us to give greater weight to worse-case outcomes than expected utility theory does. And, I will show, such decision theories do not always recommend longtermist interventions. Indeed, sometimes, they recommend exactly the opposite: sometimes, they recommend hastening human extinction. Many, though not all, will take this as a reductio of the consequentialism or the axiology of the argument. I remain agnostic on the conclusion we should draw. (shrink)

This abstract describes a control system for a 3 horsepower (3hp) alternating current (AC) motor that operates in both forward and reverse directions with a delay of 2 seconds using two limit switches. The system is designed to ensure the safety of the motor and surrounding equipment by introducing a delay before the motor changes direction, and by using two limit switches to control the direction of the motor. When the motor runs in the forward direction and the first limit (...) switch is triggered, the motor is stopped for a period of 2 seconds before it changes direction to reverse. When the motor runs in the reverse direction and the second limit switch is triggered, the motor is stopped for a period of 2 seconds before it changes direction to forward. The control system uses a motor controller to regulate the motor's speed and direction, and two limit switches to control the motor's direction and ensure its safe operation. This system is suitable for use in industry. When the motor runs in the forward direction and the limit switch is triggered, the motor is stopped for a period of 5 seconds before it changes direction to reverse. The control system uses a motor controller to regulate the motor's speed and direction, and a limit switch to trigger the reversal of the motor. The system is designed to ensure the safety of the motor and surrounding equipment by stopping the motor before reversing its direction, and by introducing a delay to allow the motor to come to a complete stop. (shrink)

Much ink has been spilled to explain why Darwin avoided publishing his views for many years. Although a general consensus was never achieved on any one reason, not much doubt has been raised as to the existence of such a delay. In this article I argue that there was no delay. Darwin published his views as soon as he developed a defensible theory. I argue that the appearance of a delay emerged as a consequence of reading Darwin out of context. (...) Once we distinguish what would constitute a satisfactory account of transmutation for Darwin from what it would be for us, there will be no plausible case to argue that Darwin delayed publication. (shrink)

With the rapid development of information technology, the electricity consumption of Internet Data Centers (IDCs) increases drastically, resulting in considerable carbon emissions that need to be reduced urgently. In addition to the introduction of Renewable Energy Sources (RES), the joint use of the spatial migration capacity of IDC workload and the temporal flexibility of the demand of Electric Vehicle Charging Stations (EVCSs) provides an important means to change the carbon footprint of the IDC. In this paper, a sustainability improvement strategy (...) for the IDC carbon emission reduction was developed by coordinating the spatial-temporal dispatch flexibilities of the IDC workload and the EVCS demand. Based on the Minkowski sum algorithm, a generalized flexible load model of the EVCSs, considering traffic flow and Road Impedance (RI) was formulated. The case studies show that the proposed method can effectively increase the renewable energy consumption, reduce the overall carbon emissions of multi-IDCs, reduce the energy cost of the DCO, and utilize the EV dispatching potential. Discussions are also provided on the relationship between workload processing time delay and the renewable energy consumption rate. (shrink)

Luke Elson defends carbon offsetting on the basis that it is not morally objectionable to shift harms or risks around. As long as emitting and offsetting does not increase the overall harms or risks—and merely shifts them—compared to refraining from emitting, he suggests there is no injustice involved. I respond in several ways, suggesting that the time delay involved in offsetting can increase these risks but, regardless, there is a defensible default which could justify refraining from emitting, even when planning (...) to offset. (shrink)

Investments in mitigating climate change have their greatest environmental impact over the long term. As a consequence the incentives to invest in cutting greenhouse gas emissions today appear to be weak. In response to this challenge, there has been increasing attention given to the idea that current generations can be motivated to start financing mitigation at much higher levels today by shifting these costs to the future through national debt. Shifting costs to the future in this way benefits future generations (...) by break- ing existing patterns of delaying large-scale investment in low-carbon energy and efficiency. As we will see in this chapter, it does appear to be technically feasible to transfer the costs of investments made today to the future in such a way that people alive today do not incur any net cost. the aim of this chapter is to take seriously the possibility that climate change has produced an extremely intractable political problem and that we must now consider strong measures that can break existing patterns of delaying mitigation. I defend the claim that if climate change involves a stark conflict of interests between current and future generations, then borrowing from the future would be both strategically and normatively much better than the status quo. Nevertheless, I challenge the borrowing from the future proposal on the grounds that it is not in fact the powerful tool for motivating existing agents that its proponents imagine it to be. The purpose of developing this critical argument is not, however, simply to throw doubt onto the idea of borrowing from the future. If we really do find ourselves in a political context where the prospects for effective action are very poor then strategic forms of buck-passing may make an important positive contribution to avoiding dangerous global cli- mate change. Consequently, if debt financing is not as powerful of a motivational tool as imagined we still have strong reasons, I will argue, to identify other strategies that will change agents’ incentive structures. To this end, I propose an alternative form of passing on the costs of mitigation to the future that warrants consideration. (shrink)

Disintegration is the most important step for drug bioavailability because after, the disintegration process, the ingredients of solid dosage forms dissolve and become bioavailable. Generally, the tablets and capsules should be taken with a glass of water otherwise the manufacturer gives instructions to use the proper beverage. Several drugs are taken with different forms of beverages to ensure easy swallowing of the tablet, masking the bad taste of the drug and overcoming the drug aftertaste, these beverages can influence the disintegration (...) of the solid dosage form. The most common cold beverages consumed by the Libyan population are juice, milk, and Coca-Cola. These beverages are consumed without awareness of the possible effect of these beverages on drugs, especially over-the-counter drugs such as analgesic, antipyretic, and anti-inflammatory drugs that are taken without a prescription. This study aimed to evaluate the influence of three beverages, namely: orange juice, milk, and Coca-Cola on the disintegration time of four over-the-counter-drugs: Panadol, Congestal, Brufen, and Reality Extra using disintegration test of drugs in 0.1 N HCL and in hybrid medium prepared by combination of 150 ml 0.1 N HCL and 550 ml of beverage to simulate in vivo condition. The findings show that the orange juice significantly increases the disintegration time of all the investigated drugs. Coca-Cola significantly increases the disintegration time of Reality Extra, and slightly increases the disintegration time of Brufen, Congestal, and Panadol and the full-fat milk significantly increases the disintegration time of Reality Extra and Panadol while slightly increasing the disintegration time for Brufen and Congestal. It is concluded that commonly used beverages affect the disintegration time of the examined over-the-counter drugs. Patients should be advised to take these medications without beverages which may delay the disintegration and the onset of action of the drug. (shrink)

Davis called for “extreme caution” in the use of non-invasive brain stimulation to treat neurological disorders in children, due to gaps in scientific knowledge. We are sympathetic to his position. However, we must also address the ethical implications of applying this technology to minors. Compensatory trade-offs associated with NIBS present a challenge to its use in children, insofar as these trade-offs have the effect of limiting the child’s future options. The distinction between treatment and enhancement has some normative force here. (...) As the intervention moves away from being a treatment toward being an enhancement—and thus toward a more uncertain weighing of the benefits, risks, and costs—considerations of the child’s best interests diminish, and the need to protect the child’s autonomy looms larger. NIBS for enhancement involving trade-offs should therefore be delayed, if possible, until the child reaches a state of maturity and can make an informed, personal decision. NIBS for treatment, by contrast, is permissible insofar as it can be shown to be at least as safe and effective as currently approved treatments, which are themselves justified on a best interests standard. (shrink)

Chronic fatigue syndrome or myalgic encephalomyelitis remains a controversial illness category. This paper surveys the state of knowledge and attitudes about this illness and proposes that epistemic concerns about the testimonial credibility of patients can be articulated using Miranda Fricker’s concept of epistemic injustice. While there is consensus within mainstream medical guidelines that there is no known cause of CFS/ME, there is continued debate about how best to conceive of CFS/ME, including disagreement about how to interpret clinical studies of treatments. (...) Against this background, robust qualitative and quantitative research from a range of countries has found that many doctors display uncertainty about whether CFS/ME is real, which may result in delays in diagnosis and treatment for patients. Strikingly, qualitative research evinces that patients with CFS/ME often experience suspicion by health professionals, and many patients vocally oppose the effectiveness, and the conceptualization, of their illness as psychologically treatable. We address the intersection of these issues and healthcare ethics, and claim that this state of affairs can be explained as a case of epistemic injustice. We find evidence that healthcare consultations are fora where patients with CFS/ME may be particularly vulnerable to epistemic injustice. We argue that the marginalization of many patients is a professional failure that may lead to further ethical and practical consequences both for progressive research into CFS/ME, and for ethical care and delivery of current treatments among individuals suffering from this debilitating illness. (shrink)

"Kapitał społeczny ludzi starych na przykładzie mieszkańców miasta Białystok" to książka oparta na analizach teoretycznych i empirycznych, która przedstawia problem diagnozowania i używania kapitału społecznego ludzi starych w procesach rozwoju lokalnego i regionalnego. Kwestia ta jest istotna ze względu na zagrożenia i wyzwania związane z procesem szybkiego starzenia się społeczeństwa polskiego na początku XXI wieku. Opracowanie stanowi próbę sformułowania odpowiedzi na pytania: jaki jest stan kapitału społecznego ludzi starych mieszkających w Białymstoku, jakim ulega przemianom i jakie jest jego zróżnicowanie? Ludzie (...) starzy są tu postrzegani jako kategoria społeczna, czyli zbiór osób podobnych do siebie pod względem społecznie istotnych cech (takich jak wiek, posiadane role społeczne i świadomość korzystania ze świadczeń społecznych), którzy są świadomi tego podobieństwa i swojej odrębności od innych. Przyjmuje się ponadto, iż osoby takie przekroczyły 60. rok życia. Zakłada się też, że w zasobach ludzkich skumulowany jest kapitał ludzki, społeczny i kulturowy. Kapitał społeczny jest tu ujmowany szeroko jako potencjał współdziałania osadzony w powiązaniach międzyludzkich i normach społecznych, który może przynosić korzyści osobom, grupom i społeczeństwom. W części teoretycznej przedstawiono informacje o starości jako etapie w życiu jednostki, wyjaśniono pojęcie ludzi starych, omówiono społeczne teorie starzenia się, historyczne czynniki oddziaływające na położenie kategorii społecznej ludzi starych, zmiany ich miejsca w społeczeństwie polskim w trakcie transformacji ustrojowej i na początku XXI wieku, możliwe konsekwencje wzrostu długości życia w warunkach demokracji i kapitalizmu oraz charakterystykę problemu starzenia się ludności Białegostoku jako miasta pogranicza. Zaprezentowano też różnorodne koncepcje kapitału społecznego, sfery jego oddziaływania na rozwój społeczno-gospodarczy, jego stan w Polsce oraz wytyczne do strategicznego budowania jego zasobów. Przybliżono również wybrane informacje o aktywności ludzi starych w życiu publicznym, społecznym i gospodarczym jako kluczowych cechach ich kapitału społecznego. Porządkując różne stanowiska teoretyczne, wyniki badań i dane statystyczne, dążono do powiązania wielu rozproszonych źródeł w przekonaniu, iż jest to istotne w celu określenia i zagospodarowania zasobów kapitału społecznego seniorów, jak również niwelacji opóźnienia polskiej socjologii w zakresie badań nad ludźmi starymi. Pomimo, iż za podstawową perspektywę teoretyczną publikacji uznana została koncepcja kapitału P. Bourdieu, autor bierze również pod uwagę propozycje badawcze J.S. Colemana, R.D. Putnama, F. Fukuyamy, A. Giddensa, P. Sztompki i A. Sadowskiego. Drugi rozdział zawiera określenie ram metodologicznych badań przeprowadzonych na potrzeby tej publikacji. Omówiono przyjęte założenia badawcze oraz przybliżono sposób i przebieg realizacji badań. Przede wszystkim zdecydowano się na korzystanie z metody jakościowej i zastosowanie techniki wywiadu swobodnego ukierunkowanego. Uznano, iż podmiotowy kontakt z ludźmi starymi umożliwi dokładniejsze rozpoznanie kontekstu, w którym znajdują się zasoby ich kapitału społecznego. Jest to ważne, gdyż przenoszenie na rodzimy grunt opracowanych za granicą interpretacji działań ludzi starych i rozwiązań aktywizujących, może okazać się nieskuteczne lub wywołać negatywne efekty zewnętrzne. Ponadto w literaturze przedmiotu zwraca się uwagę na niedostatek badań gerontologicznych zgodnych z paradygmatem interpretatywnym. Badaniu poddano 26 respondentów w wieku od 60 do 89 lat żyjących w mieście Białystok związanych z jedną z dwóch różnych instytucji: Domem Pomocy Społecznej i Uniwersytetem Trzeciego Wieku. Poprzez porównywanie osób znajdujących się na dwóch biegunach aktywności społecznej możliwe było dostrzeżenie podobieństw i różnic w ich wyposażeniu kapitałowym, a zarazem w osiągniętych w ciągu życia pozycjach w strukturze klasowej i zasobach służących pomyślnej starości6. W trzecim rozdziale przedstawiona została część wyników analiz empirycznych. Przybliżono tu sposób, w jaki ludzie starzy myślą o podobnych sobie przodkach i osobach współczesnych, a także czynniki, w zależności od których zmienia się ich pozycja społeczna w mieście oraz problemy społeczne, jakie uznają za najważniejsze dla ludzi starych. Analizie poddano opinie o ich czasie wolnym, szansach i barierach aktywności ekonomicznej. Wyróżniono typy kapitału społecznego ludzi starych w zależności od instytucji, z którymi są związani oraz podejścia do postrzegania i wykorzystywania zróżnicowania wewnętrznego seniorów. Omówiono wizerunek seniorów w środkach masowego przekazu. Publikacja nie zawiera ścisłego zakończenia. W ostatnim rozdziale wskazano jedynie na główne wnioski płynące z badań oraz na potencjalne dalsze kierunki analiz. Uzupełnienie tego podejścia stanowią zamieszczone w aneksie zestawienia oddolnych technik budowania kapitału społecznego oraz podstawowych cech Miast Przyjaznych Starszemu Wiekowi. Z opracowania tego z pewnością będą mogli skorzystać nie tylko naukowcy zajmujący się tematyką ludzi starych, ale i pracownicy socjalni, politycy, pracodawcy, przedstawiciele mediów i organizacji pozarządowych oraz obywatele Białegostoku i innych miast. ** "Social Capital of Old People on the Example of Bialystok Residents" is a book based on theoretical and empirical study, which presents an issue of diagnosing and using of old people social capital in the local and regional development processes. This issue is significant because of the threats and challenges associated with process of rapid ageing of Polish society at the beginning of 21st century. Publication, in particular, is an attempt to give answers to the following questions: what is the state of old people social capital in Bialystok, what transformations it undergoes and how is it differentiated? In this study old people are viewed as a social category, which is a set of people similar to each other in terms of socially significant features (such as age, possessed social roles and awareness of received social benefits), who are aware of these similarities and differences between each other. Moreover, it is assumed, that such persons exceeded the 60 years of age. It is also assumed that human, social and cultural capital is accumulated in the human resources. Social capital is recognized here broadly as a potential for collaboration embedded in interpersonal relationships and social norms that may benefit individuals, groups and societies. The book consists of three chapters. The first, which is the theoretical part of work, includes information about: old age as a stage of individual life and explanation of the old people notion. It discusses social theories of ageing, historical factors affecting on the social position of old people category, changes in their place in Polish society during the system transformation and in the early 21st century. It describes the possible consequences of increased life expectancy for democracy and capitalism - including the concepts of society for all ages, silver economy. It also features ageing population issue, as well as social policy towards the elderly and old age in Bialystok as the borderland city. A variety of social capital concepts were presented; the spheres of its influence on socio-economic development, its status in Poland and guidelines for strategic building of its resources. Selected information on the activity of old people in public, social and economic life as key features of their social capital was brought closer. Putting various theoretical positions, results of research and statistical data in order was aimed to link many dispersed sources considering that it is relevant to identify and develop seniors' social capital resources, as well as leveling the delay of Polish sociology research on the elderly. Fundamental theoretical perspective of publication is the concept of capital according to P. Bourdieu. However, the proposals of J.S. Coleman, R.D. Putnam, F. Fukuyama, A. Giddens, P. Sztompka and A. Sadowski were also used. The second chapter contains a methodological framework for the purposes of study. Research assumptions, method and course of implementation of studies were discussed. The study is based on the qualitative method and the application of in-depth interview techniques. It was considered that the personal contact with old people will be more accurate than other research techniques to identify the context in which they social capital resources can be found. It is important because the transfer of developed abroad activating solutions and interpretations of old people actions may be ineffective or have negative external effects in the Polish context. Moreover, in the Polish science literature attention is paid to scarcity of gerontological research in accordance with the interpretive paradigm. Study involved 26 respondents aged 60 to 89 years living in Bialystok associated with one of two different institutions: nursing home for the elderly and University of the Third Age. By comparing the persons on two extremes of social activity it was possible to see similarities and differences in their capital equipment, and also in achievements of the life positions in the class structure and resources aimed at successful ageing. The third chapter presents the empirical analysis of the research results. This part outlines the way in which old people think about their ancestors and contemporary people. It also shows factors according to changes in their social position in the city, social issues which they consider most important for old people, their opinions about leisure time, opportunities and barriers of economic activity and types of old people social capital depending on the institution with which they are associated. Approach to the perception and use of internal disparities of seniors were also discussed. The analysis additionally contains the evaluation of senior citizens image in the polish mass media. This publication does not contain a strict ending. It only identifies the main conclusions of the research and potential directions of future analysis. Above all, older people could improve their position not by demanding increases in social benefits from which major parts are often taken away by their family members, but by highlighting their human, social and cultural capital. It is necessary to create favorable conditions for social and professional life of old people and their cooperation with members of local communities. Important role in this regard is played by institutions implementing three tasks: stimulating senior citizens' desire to satisfy previously unrealized needs; creating relationships between them so that they can solve their own problems and work for the others; and providing legal, social and vocational guidance. Stimulating cooperation between existing public, commercial and non-governmental sector organizations may serve to achieve these goals. The dissemination of bottom-up techniques of social capital building and checklist of essential features of Age-friendly Cities may also be important. -/- . (shrink)

At a time when bioethical issues are at the top of public and political agendas, there is a renewed interest in representations of the embryo in various religious traditions. One of the major traditions that have contributed to Western representations of the embryo is the Jewish tradition. This tradition poses some difficulties that may deter scholars, but also presents some invaluable advantages. These derive from two components, the search for limits and narrativity, both of which are directly connected with the (...) manner in which Jewish tradition was constructed in Antiquity. The article accomplishes three goals: • To introduce some central elements in ancient Rabbinic literature on the subject of the embryo and its representation; • To present this body of literature as clearly as possible, noting some of the difficulties encountered by scholars who engage in its study; • To explain how the literature’s textuality came about, examining the particular sociopolitical circumstances of Judaism at that time, including the reasons for the delay in the production of scientific texts, transmitted as such, as compared to other philosophical or religious traditions. The claim is that these circumstances engendered a tradition peculiarly relevant for the study and teaching of medical ethics today. (shrink)

Disintegration is the most important step for drug bioavailability because after, the disintegration process, the ingredients of solid dosage forms dissolve and become bioavailable. Generally, the tablets and capsules should be taken with a glass of water otherwise the manufacturer gives instructions to use the proper beverage. Several drugs are taken with different forms of beverages to ensure easy swallowing of the tablet, masking the bad taste of the drug and overcoming the drug aftertaste, these beverages can influence the disintegration (...) of the solid dosage form. The most common cold beverages consumed by the Libyan population are juice, milk, and Coca-Cola. These beverages are consumed without awareness of the possible effect of these beverages on drugs, especially over-the-counter drugs such as analgesic, antipyretic, and anti-inflammatory drugs that are taken without a prescription. This study aimed to evaluate the influence of three beverages, namely: orange juice, milk, and Coca-Cola on the disintegration time of four over-the-counter-drugs: Panadol, Congestal, Brufen, and Reality Extra using disintegration test of drugs in 0.1 N HCL and in hybrid medium prepared by combination of 150 ml 0.1 N HCL and 550 ml of beverage to simulate in vivo condition. The findings show that the orange juice significantly increases the disintegration time of all the investigated drugs. Coca-Cola significantly increases the disintegration time of Reality Extra, and slightly increases the disintegration time of Brufen, Congestal, and Panadol and the full-fat milk significantly increases the disintegration time of Reality Extra and Panadol while slightly increasing the disintegration time for Brufen and Congestal. It is concluded that commonly used beverages affect the disintegration time of the examined over-the-counter drugs. Patients should be advised to take these medications without beverages which may delay the disintegration and the onset of action of the drug. (shrink)

The problem of future generations is a growing ethical issue. There are ongoing discussions about what kind of earth we are leaving and what we should leave to future generations as a result of the delayed awareness – if not ignorance – of the fact that this World does not belong to us exclusively. When we look at the example of Turkey, we can see that there is a huge conflict between environmental utilization and environmental education. On the one hand, (...) we have classes on the environment and its health; on the other hand, it is a reality that we have a not-so-eco-friendly government policy, which takes no notice of any kind of environmental issues or requirements. To mention but few, governmental insistence on real estate investments in green spaces, even by covering grade 1 natural site areas, a decline in the extent of agricultural land due to uncontrollable urbanization, and hydroelectric power plant projects are among recent events. These are the instances of conflicts between inscriptive and operative environmental policies in Turkey. The purpose of this article is to call attention to this dilemma and to assert that ecocide might be just another kind of genocide for Turkey, i.e., the genocide-yet-to-come. (shrink)

The results revealed that students who remained in China experienced challenges which included anxiety, closure of campuses, lockdown, their parents’ concern regarding health issues, and not being able to meet with friends. On the other hand, students who had left China during the pandemic were confined to their home countries. This group of students experienced more severe problems than the students who remained in China. Since the transition to home countries was “unplanned,” they were not ready to readjust to their (...) native culture and were vulnerable to severe reverse culture shock. Upon returning to their home countries, international students faced a number of challenges, including readjustment to their home countries and changes in their lives in host and home countries. In addition, they lost social and academic resources, such as the disruption of study environment, losing important group memberships, financial constraints, visa expiry, graduation delay, and academic suspension. (shrink)

If each of the subtypes of autism is defined simply as constituted by a set of symptoms, then the criteria for its observation are straightforward, although, of course, some of those symptoms themselves might be hard to observe definitively. Compare with telling whether or not someone is bleeding: while it might be hard to tell if someone is bleeding internally, we know what it takes to find out, and when we have the right access and instruments we can settle the (...) issue. But matters are not so simple for the autism subtypes. For one thing, how do we settle which symptoms to group together under one heading? One key difference between “autism disorder” and “Asperger’s disorder” is that the former exhibit language delays (sometimes extreme), whereas the latter do not. But is that a sign of genuinely distinct conditions or is that an artifact of the distinct groups of subjects that Leo Kanner and Hans Asperger worked with? And in general, although there are certainly types of behavior that are taken to be indicative of autism, none by itself is taken by diagnosticians to be either necessary or sufficient for a definitive diagnosis for any of the autism subtypes. What is the diagnostician to do? This is not merely an academic issue, as many parents can attest. Are we in a situation, then, that each practitioner has his or her own “pet” signs that are the “real keys” to the diagnosis? That would suggest that the term “autistic” might meet the fate of the outdated term “neurotic,” which turned out to be a pseudo-scientific term for an inexact clumping together of unrelated phenomena. The assumption amongst specialists seems to be that we will reach the point with "autism" that we have with "water": there will be a root essence to autism whose presence or absence settles a diagnosis. If that is to be the case, however, we have to settle the level of application of the concept. Does the term apply to people who exhibit particular behaviors? Or is it possible to exhibit “autistic” behaviors without actually being autistic, because autism is instead a particular feature of the mind (as, for example, in Baron-Cohen’s “impaired theory of mind module” theory, discussed below) which usually but not necessarily has behavioral effects? Or is autism located instead in the brain, perhaps in damage to key areas, which in turn would typically have an effect on modules of the mind? Or perhaps autism is located in genetics or biology, so that some people with damage to the brain caused by accidents so that they exhibit autistic symptoms would not actually be autistic. Conversely, supposing one had an “autistic brain” but showed none of (or not a sufficient number of) the symptoms, would one not be autistic? The assumption is that the genotypes and phenotypes will line up neatly, but if they do not, what happens to the concept “autistic?” (There is an analogy in the philosophy of sex and gender: androgen insensitive individuals tend to self-identify as female and have outward female traits, but have XY chromosomes—should we go with chromosomes or self-identity in assigning sex category?) Finally, the implications for these complications for diagnosis and categorization, with the attendant social and medical implications is discussed. The typical assumption of the medical profession is that autism cannot be “cured.” That assumes that autism is not simply the symptoms. However, at the same time, the tests used to diagnose ASDs work simply from the symptoms (for example, Baron-Cohen’s Sally/Anne test, which ASD children of a certain age almost all fail, but which practically no ASD adult fails). This implies an inherent confusion over the status of the concept. I conclude that attempts to make sense of some true or accurate summary of what it is to be autistic (such as one would find in the DSM) are almost certainly misguided and will vanish into history along with “neurotic.” But as with racial terms, which are similarly shifting and perverse, the term has already passed into the public sphere and will have a lasting and dangerous influence beyond its short scientific shelf-life. (shrink)

The U.S. review system for human subjects research has been widely criticized in recent years for requirements that delay research without improving human subjects protections. Any major reformulation of regulations may take some time to implement. In the meantime, current regulations often allow for streamlined ethics review without jeopardizing—and possibly improving—protections for research participants. We discuss underutilized options, including research that need not be classified as “human subjects research,” categories of studies that can be exempt from ethical review, and studies (...) that need only undergo expedited review by one IRB member. In addition, we consider ways to simplify review of multi-center research using one institution’s IRB. We speculate on multiple reasons for the underuse of these mechanisms, and exhort IRBs and researchers to take advantage of these important opportunities to improve the review process. (shrink)

Background: The United States symbolizes democracy in the new world and contributes to global prosperity. Nevertheless, incrementalism is a historically dominant national approach to public policy implementation that delays democracy and undermines human dignity. Human flourishing and national development are endangered by slow-moving democratic changes. This necessitates a social justice framework that traces the exploitation of incrementalism and the consequences of opportunity gaps. Objectives: This study aims to construct a grounded theory to address and answer the following research question: Are (...) anti-democratic concepts part of a process or strategy that hinders democratic change, and what reinforces it, if anything? Methods: Two categories emerged from a grounded theory of democratic social change. This combination of anti-democratic tenets and democratic principles led to abductive reasoning to fill the research gap. Results: The key finding was the existence of a systematic approach that led to democracy while simultaneously disempowering the same group through legal and extralegal means. Two processes hinder democracy: incrementalism and an anti-democratic demoralizing process. A constructivist social justice grounded theory was developed to analyze and evaluate public policy for barriers and facilitators of democracy. A thorough analysis and evaluation of the impact and consequences of public policy is recommended to better understand how such policies impede democracy and influence American perceptions of justice. (shrink)

We show that in the Maxwell–Lorentz theory of classical electrodynamics most initial values for fields and particles lead to an ill-defined dynamics, as they exhibit singularities or discontinuities along light-cones. This phenomenon suggests that the Maxwell equations and the Lorentz force law ought rather to be read as a system of delay differential equations, that is, differential equations that relate a function and its derivatives at different times. This mathematical reformulation, however, leads to physical and philosophical consequences for the ontological (...) status of the electromagnetic field. In particular, fields cannot be taken as independent degrees of freedom, which suggests that one should not add them to the ontology. (shrink)

Samuel Butler is usually remembered for Erewhon, widely considered among the best English satires. He also contributed to philosophical biology in works that collectively compose the nineteenth century's finest statement of the evolutionary argument associated with the name of Lamarck. In writing on evolution, Butler was not presenting science for a popular audience but deliberately intervening in the scientific argument about Darwinism. Surprised by the success of his first venture in philosophical biology, Life and Habit, Butler committed himself to the (...) project of developing an alternative to Darwinism, which he did in three additional volumes, and these are the works canvassed in this “delayed book review.”. (shrink)

Introduction: Sexual harassment involves an assortment of coercive behaviors, including physical force, intimidation, and various forms of compulsion, including verbal harassment and forced penetration [1]. Sexual abuse can happen to both men and women. In the United Kingdom(UK), the problem of child sexual abuse (CSA) has epidemic proportions and is a global public health issue [2]. 53,874 incidents were reported under the 2012 Protection of Children from Sexual Offences Act as of 2021 [3]. to their ignorance about puberty, sexuality, and (...) fundamental human biological changes, adolescents have a very difficult time addressing their SRH demands. These underlying causes contribute to high rates of teen pregnancy, STIs, sexual assault, poor negotiating skills, forced marriage, and high fertility rates [4]. -/- Methods: The study used a quantitative technique and a descriptive cross-sectional design. Students at Jahangir Nagar University and the American International University of Bangladesh were the intended target group. Jahangir Nagar University and American International University of Bangladesh served as the study locations. The six-month trial period ran from January 2022 through June 2022. For this investigation, primary sources of data were used. The study unit was the individual student. Non-probability (purposive) sampling techniques were used for the investigation. -/- Results: The majority of survey participants (N=81) 62.2% were aged between 19 and 21 years old, and there was a statistically significant difference in age between students at public and private universities. None of our study participants suffered from any kind of sexual abuse, though they mentioned hearing about it. Regarding the view of sexual abuse, public universities 23% of those polled claimed sexual abuse as a justification for sharing inappropriate photos. At private universities, the response rate for crude jokes is 32.5%. Only the least number of public (2%) and private university (10%) students took part in sexual abuse-related awareness or training programs. Regarding the rights to receive training for prevention and safeguarding from sexual abuse, only 28% of the public and 40% of the private university students replied in affirmative. -/- Conclusion: Sexual harassment is a sensitive issue, though due to various reasons, the rate of reporting and providing justice to the victims is delayed all over the world including Bangladesh. There social, religious, and policy lacking in this context. -/- . (shrink)

A classic debate concerns whether reasonableness should be understood statistically (e.g., reasonableness is what is common) or prescriptively (e.g., reasonableness is what is good). This Article elaborates and defends a third possibility. Reasonableness is a partly statistical and partly prescriptive “hybrid,” reflecting both statistical and prescriptive considerations. Experiments reveal that people apply reasonableness as a hybrid concept, and the Article argues that a hybrid account offers the best general theory of reasonableness. -/- First, the Article investigates how ordinary people judge (...) what is reasonable. Reasonableness sits at the core of countless legal standards, yet little work has investigated how ordinary people (i.e., potential jurors) actually make reasonableness judgments. Experiments reveal that judgments of reasonableness are systematically intermediate between judgments of the relevant average and ideal across numerous legal domains. For example, participants’ mean judgment of the legally reasonable number of weeks’ delay before a criminal trial (ten weeks) falls between the judged average (seventeen weeks) and ideal (seven weeks). So too for the reasonable num- ber of days to accept a contract offer, the reasonable rate of attorneys’ fees, the reasonable loan interest rate, and the reasonable annual number of loud events on a football field in a residential neighborhood. Judgment of reasonableness is better predicted by both statistical and prescriptive factors than by either factor alone. -/- This Article uses this experimental discovery to develop a normative view of reasonableness. It elaborates an account of reasonableness as a hybrid standard, arguing that this view offers the best general theory of reasonableness, one that applies correctly across multiple legal domains. Moreover, this hybrid feature is the historical essence of legal reasonableness: the original use of the “reasonable person” and the “man on the Clapham omnibus” aimed to reflect both statistical and prescriptive considerations. Empirically, reasonableness is a hybrid judgment. And normatively, reasonableness should be applied as a hybrid standard. (shrink)

The research study aimed at assessing the various difficulties that speech teachers had in delivering lessons during the distance learning era. The various phenomena and themes that emerged from the survey were determined using a descriptive research design. The survey was conducted to collect information about the various characteristics and behavior of speech teachers. It also explored the factors that influenced their decisions and actions when it came to addressing the pandemic. The repeated themes that emerged, include low motivation, altered (...) activities, unstable internet connection, comprehension, questionable output integrity, delayed submissions, in-person monitoring, and the system of communicating with inactive students in online mode. (shrink)

abstract Postdiction effects are phenomena in which a stimulus influences the appearance of events taking place before it. In metacontrast masking, for instance, a masking stimulus can ren- der a target stimulus shown before the mask invisible. This and other postdiction effects have been considered incompatible with a simple explanation according to which (i) our perceptual experiences are delayed for only the time it takes for a distal stimulus to reach our sensory receptors and for our neural mechanisms to process (...) it, and (ii) the order in which the processing of stimuli is completed corresponds with the apparent temporal order of stimuli. As a result, the theories that account for more than a single postdiction effect reject at least one of these theses. This paper presents a new framework for the tim- ing of experiences—the non-linear latency difference view—in which the three most dis- cussed postdiction effects—apparent motion, the flash-lag effect, and metacontrast masking—can be accounted for while simultaneously holding theses (i) and (ii). This view is grounded in the local reentrant processes, which are known to have a crucial role in perception. Accordingly, the non-linear latency difference view is both more parsimonious and more empirically plausible than the competing theories, all of which remain largely silent about the neural implementation of the mechanisms they postulate. (shrink)

Merleau-Ponty's reference to "a past which has never been present" at the end of "Le sentir" challenges the typical framework of the Phenomenology of Perception, with its primacy of perception and bodily field of presence. In light of this "original past," I propose a re-reading of the prepersonal as ground of perception that precedes the dichotomies of subject-object and activity-passivity. Merleau-Ponty searches in the Phenomenology for language to describe this ground, borrowing from multiple registers (notably Bergson, but also Husserl). This (...) "sensory life" is a coexistence of sensing and sensible—bodily and worldly—rhythms. Perception is, then, not a natural given, but a temporal process of synchronization between rhythms. By drawing on Bergson, this can be described as a process in which virtual life is actualized into perceiving subject and object perceived. Significantly, this process involves non-coincidence or delay whereby sensory life is always already past for perception. (shrink)

We are living in an increasingly complex world. How are we able to cope with this complexity and the difficulties that arise from it? Can philosophy and art, classified as the two utmost useless and pointless disciplines, have any (positive) influence on the urgent and pressing problems at hand? And, related to this, if the two have more than just their uselessness in common, how, then, are philosophy and art related? In this article, I will argue that although ‘useless’ disciplines (...) such as philosophy and art have no direct influence on our complex world, they are nonetheless the most important ones, because those working within them practice their insights in an indirect way. Indirect influence may take a little longer, but the impact is much stronger, affecting our thinking and our attitudes from within, as it were. This indirect approach has everything to do with the sort of questions philosophers and artists occupy themselves with. I will show how both address, albeit each in their own way, fundamental questions, and thereby make use of thought experiments. Intuition and imagination play a decisive part in the creative processes that are involved in thought experiments and thinking. It is argued that we all are able to learn a ‘delayed unconscious thinking’ that leads to an artistic attitude; one that will activate an artistic turn. (shrink)

Katz denies that organisms created in a lab as part of a de-extinction attempt will be authentic members of the extinct species, on the basis that they will lack the original species’ defining biological and evolutionary history. Against Katz, I note that an evolutionary lineage is conferred on an organism through its inheriting genes from forebears already possessed of such a lineage, and that de-extinction amounts to a delayed, human-assisted reproductive process, in which genes are inherited from forebears long dead. (...) My conclusion is that de-extinct organisms can perfectly well have an ancient evolutionary history, contrary to what Katz claims. (shrink)

In quantum mechanics, the wavefunction predicts probabilities of possible measurement outcomes, but not which individual outcome is realised in each run of an experiment. This suggests that it describes an ensemble of states with different values of a hidden variable. Here, we analyse this idea with reference to currently known theorems and experiments. We argue that the ψ-ontic/epistemic distinction fails to properly identify ensemble interpretations and propose a more useful definition. We then show that all local ψ-ensemble interpretations which reproduce (...) quantum mechanics violate Statistical Independence. Theories with this property are commonly referred to as superdeterministic or retrocausal. Finally, we explain how this interpretation helps make sense of some otherwise puzzling phenomena in quantum mechanics, such as the delayed choice experiment, the Elitzur-Vaidman bomb detector, and the Extended Wigner's Friends Scenario. (shrink)

Attacks similar to those in Nice and Munich could happen in any other Western city in the near future. Discussion about the political culture that grounds liberal democracies should not be delayed.

We propose the Prototime Interpretation of quantum mechanics, which claims that quantum entanglement occurs in a "prototemporal" realm which underlies spacetime. Our paper is tentative and exploratory. The argument form is inference to the best explanation. We claim that the Prototime Interpretation (PI) is worthy of further consideration as a superior explanation for perplexing quantum phenomena such as delayed choice, superposition, the wave-particle duality and nonlocality. In Section One, we introduce the Prototime Interpretation. Section Two identifies its advantages. Section Three (...) discusses several implications of the view, such as its deterministic nature and relation to the simulation hypothesis. (shrink)

The goal of the present paper is to defend against a certain line of attack the view that conscious experience of color is no more fine-grained that the repertoire of non- demonstrative concepts that a perceiver is able to bring to bear in perception. The line of attack in question is an alleged empirical argument - the Diachronic Indistinguishability Argument - based on pairs of colors so similar that they can be discriminated when simultaneously presented but not when presented across (...) a memory delay. My aim here is to show that this argument fails. (shrink)

This study employs machine learning to predict diabetes using a Kaggle dataset with 13 features. Our three-layer model achieves an accuracy of 98.73% and an average error of 0.01%. Feature analysis identifies Age, Gender, Polyuria, Polydipsia, Visual blurring, sudden weight loss, partial paresis, delayed healing, irritability, Muscle stiffness, Alopecia, Genital thrush, Weakness, and Obesity as influential predictors. These findings have clinical significance for early diabetes risk assessment. While our research addresses gaps in the field, further work is needed to enhance (...) model generalizability. (shrink)

How do opinion diversity and belief polarisation affect epistemic group decision-making, particularly if decisions must be made without delay and on the basis of permissive evidence? In an agent-based model, we track the consistency of group opinions aggregated through sentence-wise majority voting. Simulations on the model reveal that high opinion diversity, but not polarisation, incurs a significant inconsistency risk. These results indicate that epistemic group decisions based on permissive evidence can be particularly difficult for diverse groups. The results also improve (...) our understanding of what can reasonably be expected of expert groups, and where expert advice might have limits. (shrink)

We ask whether it is reasonable to delay or refuse to take COVID-19 vaccines that have been shown in clinical trials to be safe and effective against infectious diseases. We consider two kinds of vaccine hesitancy. The first is geared to scientifically informed open questions about vaccines. We argue that in cases where the data is not representative of relevant groups, such as pregnant women and ethnic minorities, hesitancy can be reasonable on epistemic grounds. However, we argue that hesitancy is (...) not reasonable if a vaccine has passed well-conducted clinical trials. The second kind of hesitancy is to do with beliefs about the institutions offering a successfully trialled vaccine and the justifiability of cooperating with those institutions. For example, in the UK, distrust of the UK Government or the National Health Service is identified as a factor in the vaccine hesitancy of minority ethnic populations. We ask whether this sort of hesitation is reasonable given normative requirements of fair co-operation, both with those institutions and the wider population. We suggest that the answer is not straightforward. Sometimes the hesitation is unreasonable but understandable. -/- . (shrink)

We know that Homo sapiens will not exist forever. Given this, how should our species end? What are the reasons, if any, to delay our extinction? In this paper, I show that the pre-eminent reasons which favour prolonging the existence of the species are partial: they will arise from the particular attachments and projects of the final few generations. While there may also be impartial reasons to prolong the species, these reasons are liable, with time, to reverse their valence: we (...) can be reasonably confident that they will ultimately recommend hastening the demise of the species. Consequently, it is likely that our descendants will eventually face a difficult -- possibly tragic -- conflict, between partial duties that recommend living on, and an impartial duty to extinguish the species. (shrink)

Categorization and memory for specific items are fundamental processes that allow us to apply knowledge to novel stimuli. This study directly compares categorization and memory using delay match to category (DMC) and delay match to sample (DMS) tasks. In DMC participants view and categorize a stimulus, maintain the category across a delay, and at the probe phase view another stimulus and indicate whether it is in the same category or not. In DMS, a standard item working memory task, participants encode (...) and maintain a specific individual item, and at probe decide if the stimulus is an exact match or not. Constrained Principal Components Analysis was used to identify and compare activity within neural networks associated with these tasks, and we relate these networks to those that have been identified with resting state-fMRI. We found that two frontoparietal networks of particular interest. The first network included regions associated with the dorsal attention network and frontoparietal salience network; this network showed patterns of activity consistent with a role in rapid orienting to and processing of complex stimuli. The second uniquely involved regions of the frontoparietal central executive network; this network responded more slowly following each stimulus and showed a pattern of activity consistent with a general role in role in decision-making across tasks. Additional components were identified that were associated with visual, somatomotor and default mode networks. (shrink)

Observational learning can enhance the acquisition and performance quality of complex motor skills. While an extensive body of research has focused on the benefits of synchronous (i.e., concurrent physical practice) and non-synchronous (i.e., delayed physical practice) observational learning strategies, the question remains as to whether these approaches differentially influence performance outcomes. Accordingly, we investigate the differential outcomes of synchronous and non-synchronous observational training contexts using a novel dance sequence. Using multidimensional cross-recurrence quantification analysis, movement time-series were recorded for novice dancers (...) who either synchronised with (n = 22) or observed and then imitated (n = 20) an expert dancer. Participants performed a 16-count choreographed dance sequence for 20 trials assisted by the expert, followed by one final, unassisted performance trial. Although end-state performance did not significantly differ between synchronous and non-synchronous learners, a significant decline in performance quality from imitation to independent replication was shown for synchronous learners. A non-significant positive trend in performance accuracy was shown for non-synchronous learners. For all participants, better imitative performance across training trials led to better end-state performance, but only for the accuracy (and not timing) of movement reproduction. Collectively, the results suggest that synchronous learners came to rely on a realtime mapping process between visual input from the expert and their own visual and proprioceptive intrinsic feedback, to the detriment of learning. Thus, the act of synchronising alone does not ensure an appropriate training context for advanced sequence learning. (shrink)