48 research outputs found
Using MapReduce Streaming for Distributed Life Simulation on the Cloud
Distributed software simulations are indispensable in the study of large-scale life models but often require the use of technically complex lower-level distributed computing frameworks, such as MPI. We propose to overcome the complexity challenge by applying the emerging MapReduce (MR) model to distributed life simulations and by running such simulations on the cloud. Technically, we design optimized MR streaming algorithms for discrete and continuous versions of Conway’s life according to a general MR streaming pattern. We chose life because it is simple enough as a testbed for MR’s applicability to a-life simulations and general enough to make our results applicable to various lattice-based a-life models. We implement and empirically evaluate our algorithms’ performance on Amazon’s Elastic MR cloud. Our experiments demonstrate that a single MR optimization technique called strip partitioning can reduce the execution time of continuous life simulations by 64%. To the best of our knowledge, we are the first to propose and evaluate MR streaming algorithms for lattice-based simulations. Our algorithms can serve as prototypes in the development of novel MR simulation algorithms for large-scale lattice-based a-life models.https://digitalcommons.chapman.edu/scs_books/1014/thumbnail.jp
Recommended from our members
Patterns of injury and violence in Yaoundé Cameroon: an analysis of hospital data.
BackgroundInjuries are quickly becoming a leading cause of death globally, disproportionately affecting sub-Saharan Africa, where reports on the epidemiology of injuries are extremely limited. Reports on the patterns and frequency of injuries are available from Cameroon are also scarce. This study explores the patterns of trauma seen at the emergency ward of the busiest trauma center in Cameroon's capital city.Materials and methodsAdministrative records from January 1, 2007, through December 31, 2007, were retrospectively reviewed; information on age, gender, mechanism of injury, and outcome was abstracted for all trauma patients presenting to the emergency ward. Univariate analysis was performed to assess patterns of injuries in terms of mechanism, date, age, and gender. Bivariate analysis was used to explore potential relationships between demographic variables and mechanism of injury.ResultsA total of 6,234 injured people were seen at the Central Hospital of Yaoundé's emergency ward during the year 2007. Males comprised 71% of those injured, and the mean age of injured patients was 29 years (SD = 14.9). Nearly 60% of the injuries were due to road traffic accidents, 46% of which involved a pedestrian. Intentional injuries were the second most common mechanism of injury (22.5%), 55% of which involved unarmed assault. Patients injured in falls were more likely to be admitted to the hospital (p < 0.001), whereas patients suffering intentional injuries and bites were less likely to be hospitalized (p < 0.001). Males were significantly more likely to be admitted than females (p < 0.001)DiscussionPatterns in terms of age, gender, and mechanism of injury are similar to reports from other countries from the same geographic region, but the magnitude of cases reported is high for a single institution in an African city the size of Yaoundé. As the burden of disease is predicted to increase dramatically in sub-Saharan Africa, immediate efforts in prevention and treatment in Cameroon are strongly warranted
Managing Chronicity in Unequal States
By portraying the circumstances of people living with chronic conditions in radically different contexts, from Alzheimer’s patients in the UK to homeless people with psychiatric disorders in India, Managing Chronicity in Unequal States offers glimpses of what dealing with medically complex conditions in stratified societies means. While in some places the state regulates and intrudes on the most intimate aspects of chronic living, in others it is utterly and criminally absent. Either way, it is a present/absent actor that deeply conditions people’s opportunities and strategies of care. This book explores how individuals, groups and communities navigate uncertain and unequal healthcare systems, in which inherent moral judgements on human worth have long-lasting effects on people’s wellbeing. This is key reading for anyone wishing to deconstruct the issues at stake when analysing how care and chronicity are entangled with multiple institutional, economic, and other circumstantial factors. How people access the available informal and formal resources as well as how they react to official diagnoses and decisions are important facets of the management of chronicity. In the arena of care, people with chronic conditions find themselves negotiating restrictions and handling issues of power and (inter)dependency in relationships of inequality and proximity. This is particularly relevant in current times, when care has given in to the lure of the market, and the possibility of living a long and fulfilling life has been drastically reduced, transformed into a ‘reward’ for the few who have been deemed worthy of it
Managing Chronicity in Unequal States: Ethnographic perspectives on caring
By portraying the circumstances of people living with chronic conditions in radically different contexts, from Alzheimer’s patients in the UK to homeless people with psychiatric disorders in India, Managing Chronicity in Unequal States offers glimpses of what dealing with medically complex conditions in stratified societies means. While in some places the state regulates and intrudes on the most intimate aspects of chronic living, in others it is utterly and criminally absent. Either way, it is a present/absent actor that deeply conditions people’s opportunities and strategies of care.
This book explores how individuals, groups and communities navigate uncertain and unequal healthcare systems, in which inherent moral judgements on human worth have long-lasting effects on people’s wellbeing. This is key reading for anyone wishing to deconstruct the issues at stake when analysing how care and chronicity are entangled with multiple institutional, economic, and other circumstantial factors. How people access the available informal and formal resources as well as how they react to official diagnoses and decisions are important facets of the management of chronicity.
In the arena of care, people with chronic conditions find themselves negotiating restrictions and handling issues of power and (inter)dependency in relationships of inequality and proximity. This is particularly relevant in current times, when care has given in to the lure of the market, and the possibility of living a long and fulfilling life has been drastically reduced, transformed into a ‘reward’ for the few who have been deemed worthy of it
Health Dimensions of COVID-19 in India and Beyond
This open access book addresses the multiple health dimensions posed by the COVID-19 pandemic in India and other countries including nine in Asia, five in Sub-Saharan Africa, and New Zealand. It explores the impact of the pandemic on mental health, sexual and reproductive health and rights, health financing, self-care, and vaccine development and distribution. The contributing authors discuss its impact on vulnerable populations, including interstate migrants and female sex workers. The significant role of media and communications, rapid dissemination of information in social media, and its impact during the COVID-19 pandemic era are discussed. It closes with lessons learned from the experiences of countries that have contained the pandemic. With contributions from experts from around the world, this book presents solutions of problems that relate to COVID-19. It is a valuable resource appealing to a wide readership across the social sciences and the humanities. Readers include governments, academicians, researchers, policy-makers, program implementers, as well as lay persons
Health Dimensions of COVID-19 in India and Beyond
This open access book addresses the multiple health dimensions posed by the COVID-19 pandemic in India and other countries including nine in Asia, five in Sub-Saharan Africa, and New Zealand. It explores the impact of the pandemic on mental health, sexual and reproductive health and rights, health financing, self-care, and vaccine development and distribution. The contributing authors discuss its impact on vulnerable populations, including interstate migrants and female sex workers. The significant role of media and communications, rapid dissemination of information in social media, and its impact during the COVID-19 pandemic era are discussed. It closes with lessons learned from the experiences of countries that have contained the pandemic. With contributions from experts from around the world, this book presents solutions of problems that relate to COVID-19. It is a valuable resource appealing to a wide readership across the social sciences and the humanities. Readers include governments, academicians, researchers, policy-makers, program implementers, as well as lay persons
Managing chronicity in unequal states : ethnographic perspectives on caring
By portraying the circumstances of people living with chronic conditions in radically different contexts, from Alzheimer’s patients in the UK to homeless people with psychiatric disorders in India, Managing Chronicity in Unequal States offers glimpses of what dealing with medically complex conditions in stratified societies means. While in some places the state regulates and intrudes on the most intimate aspects of chronic living, in others it is utterly and criminally absent. Either way, it is a present/absent actor that deeply conditions people’s opportunities and strategies of care.
This book explores how individuals, groups and communities navigate uncertain and unequal healthcare systems, in which inherent moral judgements on human worth have long-lasting effects on people’s wellbeing. This is key reading for anyone wishing to deconstruct the issues at stake when analysing how care and chronicity are entangled with multiple institutional, economic, and other circumstantial factors. How people access the available informal and formal resources as well as how they react to official diagnoses and decisions are important facets of the management of chronicity.
In the arena of care, people with chronic conditions find themselves negotiating restrictions and handling issues of power and (inter)dependency in relationships of inequality and proximity. This is particularly relevant in current times, when care has given in to the lure of the market, and the possibility of living a long and fulfilling life has been drastically reduced, transformed into a ‘reward’ for the few who have been deemed worthy of it
Activation of the pro-resolving receptor Fpr2 attenuates inflammatory microglial activation
Poster number: P-T099
Theme: Neurodegenerative disorders & ageing
Activation of the pro-resolving receptor Fpr2 reverses inflammatory microglial activation
Authors: Edward S Wickstead - Life Science & Technology University of Westminster/Queen Mary University of London
Inflammation is a major contributor to many neurodegenerative disease (Heneka et al. 2015). Microglia, as the resident immune cells of the brain and spinal cord, provide the first line of immunological defence, but can become deleterious when chronically activated, triggering extensive neuronal damage (Cunningham, 2013). Dampening or even reversing this activation may provide neuronal protection against chronic inflammatory damage. The aim of this study was to determine whether lipopolysaccharide (LPS)-induced inflammation could be abrogated through activation of the receptor Fpr2, known to play an important role in peripheral inflammatory resolution. Immortalised murine microglia (BV2 cell line) were stimulated with LPS (50ng/ml) for 1 hour prior to the treatment with one of two Fpr2 ligands, either Cpd43 or Quin-C1 (both 100nM), and production of nitric oxide (NO), tumour necrosis factor alpha (TNFα) and interleukin-10 (IL-10)
were monitored after 24h and 48h. Treatment with either Fpr2 ligand significantly suppressed LPS-induced production of NO or TNFα after both 24h and 48h exposure, moreover Fpr2 ligand treatment significantly enhanced production of IL-10 48h post-LPS treatment. As we have previously shown Fpr2 to be coupled to a number of intracellular signaling pathways (Cooray et al. 2013), we investigated potential signaling
responses. Western blot analysis revealed no activation of ERK1/2, but identified a rapid and potent activation of p38 MAP kinase in BV2 microglia following stimulation with Fpr2 ligands. Together, these data indicate the possibility of exploiting immunomodulatory strategies for the treatment of neurological diseases, and highlight in particular the important potential of resolution mechanisms as novel therapeutic targets in neuroinflammation.
References
Cooray SN et al. (2013). Proc Natl Acad Sci U S A 110: 18232-7.
Cunningham C (2013). Glia 61: 71-90.
Heneka MT et al. (2015). Lancet Neurol 14: 388-40
The Ethic, Phenomenology and Diagnostic of Post-war French Psychiatry
The thesis seeks to examine the ethical, phenomenological and diagnostic renewal of psychiatry in post-war France. The particular focus of study will be to bring to light (1) the emergence of a psychiatric movement that was to become known as Institutional Psychotherapy in 1952, (2) the inauguration of a particular post-war clinical sentiment of sympathy, (3) and the more specific developments of the psychopathology of schizophrenia undertaken by Dr. Francois Tosquelles and Dr. Jean Oury. The thesis is composed of three chapters:
The first chapter of the thesis, presents a bi-focal analysis of a philanthropic politic characterising two significant moments of medical reform, where psychiatry finds its Hippocratic and Apostolic definition as a vocation addressing the imperial need of man. The first moment, is that of Philippe Pinel in a Post-Revolutionary France, who urged for more specialised spaces employing the non-violent treatment of the insane. The second, is the German Occupation of France, where the psychiatrist's personage in the questionably 'free' Vichy South is one that is dramatic and resistant. This historical study is conducted in order to bring to light the methodological shift within the history of European psychiatry: what was the art of medicine and alienation for Pinel of the Paris Pitié Salpêtrière, is extended and redefined as the art of sympathy and dis-alienation for those of the clinical fraternity of Saint-Alban.
The second chapter, observes the 1948 doctoral thesis of Dr. Francois Tosquelles and the conditions of its emergence. Addressed is the "polydimensional" approach of Institutional Psychotherapy in its marrying the psychoanalytical, the biological, the theological, the neurological and the phenomenological, and as to how such an approach reasons the negation of madness to be said of a positive, constructive, aesthetic and industrial paradigm.
The third chapter seeks to demonstrate the empirico-phenomenological attitude of Institutional Psychotherapy by observing the works of Dr. Jean Oury, Jacques Schotte, Viktor von Weizsacker and Henri Maldiney, and as to how they pertain to a "pathic" diagnostic of schizophrenia, a diagnostic of the felt rather than the thought, where the psychiatric symptom is at once empirical and transcendental