Profiling Initialisation Behaviour in Java

<p>Freshly created objects are a blank slate: their mutable state and their constant properties must be initialised before they can be used. Programming languages like Java typically support object initialisation by providing constructor methods. This thesis examines the actual initialisation of objects in real-world programs to determine whether constructor methods support the initialisation that programmers actually perform. Determining which object initialisation techniques are most popular and how they can be identified will allow language designers to better understand the needs of programmers, and give insights that VM designers could use to optimise the performance of language implementations, reduce memory consumption, and improve garbage collection behaviour. Traditional profiling typically either focuses on timing, or uses sampling or heap snapshots to approximate whole program analysis. Classifying the behaviour of objects throughout their lifetime requires analysis of all program behaviour without approximation. This thesis presents two novel whole-program object profilers: one using purely class modification (#prof ), and a hybrid approach utilising class modification and JVM support (rprof ). #prof modifies programs using aspect-oriented programming tools to generate and aggregate data and examines objects that enter different collections to determine whether correlation exists between initialisation behaviour and the use of equality operators and collections. rprof confirms the results of an existing static analysis study of field initialisation using runtime analysis, and provides a novel study of object initialisation behaviour patterns.</p>

Profiling Initialisation Behaviour in Java

<p>Freshly created objects are a blank slate: their mutable state and their constant properties must be initialised before they can be used. Programming languages like Java typically support object initialisation by providing constructor methods. This thesis examines the actual initialisation of objects in real-world programs to determine whether constructor methods support the initialisation that programmers actually perform. Determining which object initialisation techniques are most popular and how they can be identified will allow language designers to better understand the needs of programmers, and give insights that VM designers could use to optimise the performance of language implementations, reduce memory consumption, and improve garbage collection behaviour. Traditional profiling typically either focuses on timing, or uses sampling or heap snapshots to approximate whole program analysis. Classifying the behaviour of objects throughout their lifetime requires analysis of all program behaviour without approximation. This thesis presents two novel whole-program object profilers: one using purely class modification (#prof ), and a hybrid approach utilising class modification and JVM support (rprof ). #prof modifies programs using aspect-oriented programming tools to generate and aggregate data and examines objects that enter different collections to determine whether correlation exists between initialisation behaviour and the use of equality operators and collections. rprof confirms the results of an existing static analysis study of field initialisation using runtime analysis, and provides a novel study of object initialisation behaviour patterns.</p>

“La justicia ambiental es para ti y para mí”: Translating Collective Struggles for Environmental and Energy Justice in Puerto Rico’s Jobos Bay Communities

Rural, coastal communities in the Jobos Bay region of southeastern Puerto Rico confront disproportionate harms as an energy sacrifice zone. This space is constituted by imported fossil fuel dependency, economic and climate injustices, environmental racism, ecocide, US colonialism and imperialism, neoliberalism, and racial capitalism. In response, many grassroots actors mobilize against the toxic assault on their communities to push for alternatives beyond the suffocating status quo via apoyo mutuo [mutual support]. This survival work and movement building occur literally in “the outdoors” and in other intertwined multispecies environments, challenging narrow, oppressive colonial, and consumerist constructs that reduce “the outdoors” to recreation and thus erase the numerous ways that people labor in, honor, and defend places and spaces to lead good lives. Thus, critical examinations of communication and race/racism/racialization in and about this colonial US territory must grapple with the brutalities and pain caused by systemic and structural cruelties and translate how, where, and with whom self-determined and potentially liberatory environmental and energy justice advocacy takes shape to refuse a trauma-only narrative. Studying these embodied and emplaced efforts positions energy and power broadly construed, including in the form of collective action. This article centers on the collaborative energies of local grassroots actors and scholars who ideologically and politically align and who value working together toward anti-colonial praxis. To provide one example of how these collaborations can yield public-facing projects that contribute to struggles tied to the survival and well-being of the most impacted communities, this essay focuses on the creation of an environmental justice children’s book. This bilingual text documents and translates the pollution caused by a US-owned, coal-fired power plant and mobilizations to topple this corporate invader. The article concludes by reflecting on some of the difficulties and possibilities that emerged during multi-year coalitional relationships that inform and exceed the children’s book. To reject racist and colonial dominant assumptions and discourses about outdoor spaces as only privileged recreational areas or as a “blank slate” devoid of people and culture, this project narrates how grassroots organizers and scholars persist in continued study and struggle for power(ful) transformations in Jobos Bay and beyond.

Neurophysiology of Remembering

By linking the past with the future, our memories define our sense of identity. Because human memory engages the conscious realm, its examination has historically been approached from language and introspection and proceeded largely along separate parallel paths in humans and other animals. Here, we first highlight the achievements and limitations of this mind-based approach and make the case for a new brain-based understanding of declarative memory with a focus on hippocampal physiology. Next, we discuss the interleaved nature and common physiological mechanisms of navigation in real and mental spacetime. We suggest that a distinguishing feature of memory types is whether they subserve actions for single or multiple uses. Finally, in contrast to the persisting view of the mind as a highly plastic blank slate ready for the world to make its imprint, we hypothesize that neuronal networks are endowed with a reservoir of neural trajectories, and the challenge faced by the brain is how to select and match preexisting neuronal trajectories with events in the world. Expected final online publication date for the Annual Review of Psychology, Volume 73 is January 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

The rhetorical use of B. F. Skinner in evolutionary psychology

This article examines Skinner’s often neglected ideas about evolution, which he returns to in his final academic paper. I attempt to square Skinner’s advocacy for evolutionary explanation, including his efforts to reconcile biological, individual, and cultural adaptation, with how he is framed and critiqued by a school of evolutionary psychologists who attribute to Skinner a blank slate, or so-called standard social science model, view of the mind. I argue that characterizing Skinner in this manner is inconsistent with his evolutionary writings and ignores Skinner’s explicit disavowals of such interpretations. I then discuss Skinner’s evolutionary views in light of contemporary evolutionary theories of human psychology. I also compare the reception to evolutionary psychology and Skinner within the field more generally and conclude by discussing the proposal that evolutionary psychology should be considered a new paradigm for psychology, a claim that seems to follow from evolutionary psychologists’ caricature of Skinner.

“A Blank Slate”: Preparing for Tokyo 2021 During COVID-19

This article presents a case study of an applied consultancy experience with WL, an Olympic athlete preparing for Tokyo 2021. WL sought psychological support after decreases in performance and well-being forced them to consider their future as an athlete. COVID-19 and the lockdown of the United Kingdom were highly influential to the consultancy process, providing WL with the opportunity to explore their identity in the absence of sport. WL framed their emergence from the lockdown as a “Blank Slate,” which was a critical moment allowing them to “find themselves on and off the mat.” The sport psychologist’s existential philosophy is presented and discussed in detail. Furthermore, reflections are provided by WL’s strength and conditioning coach about the referral process and by WL themself about the efficacy of the interventions. The importance of supporting both the person and the performer when working with aspiring Olympic athletes is also discussed.

Methodological myth of modern actional war áctors

Problem setting. The thesis that modern war is a "war of consciousness" inevitably leads science to the problems of methodology in understanding the phenomenon of consciousness. This study shows that both the authors and the followers of the concept of modern continental wars in general reproduce a thoroughly forgotten (and in the history of philosophy has been overcome for two hundred years) its interpretation as tabula rasa - a blank slate that necessarily distorts the understanding of the real state of affairs. At the same time, the methodology developed by German classical philosophy, which culminated in Hegel's "Phenomenology of Spirit", reveals the true essence of both modern and historical forms of national consciousness. All this makes it possible to remove some of the tension created in the social sphere by the very formulation of the thesis about the consistent nature of modern wars. Article’s main body. In the article the authors consider modern problems of methodology in understanding the phenomenon of consciousness. It is emphasized that the very nature of consciousness is determined by the fact that it itself in its knowledge it considers true. On the basis of a thorough analysis of scientific achievements in the field of phenomenology, the authors state that the position on modern war without opponents is filled with contradictory, inconsistent grounds. The same myth of political technologists is the statement about the nature of national self-consciousness as tabula rasa. Conclusions. Historically, it is possible to trace the "steps" of the development of such units of national self-consciousness, while in modern times their existence is possible either in the form of "fragments" or in the form of "repetitions" of these steps. The phenomenon of international law is intensifying everywhere, and the phenomena of bipatrism, feminism, LGBT, etc. are following it - this is the verdict of World History, which can be reborn only in the form of philosophy. And our contemporary is right, saying that "the world exists to enter the book" [22, p. 370].

A WHITE PALETTE GATHERING

Storytelling, a tenet of Critical Race Theory, offers a distinct approach for researchers engaging in narrative inquiry. This article models a fiction as research approach for creating a literature synthesis as a pedagogical strategy for teacher educators and pre-service teachers. The white palette refers to a painting palette, a blank slate or canvas, often considered neutral ground. Whiteness, however, is not neutral and this one-act conversation centers on examining whiteness as it impacts my role as a white teacher educator. The production, players, and script developed out of salient literature inclusive of Critical Race Theory, Art Education, and Critical Whiteness Studies. I am both author and a participant in this story. In this capacity, I disclose the impacts of the literature on my white teacher educator identity and reveal how I created arts-based data artifacts to evidence the overall story.

Thought and Language

This chapter explores how language helps human beings to group, distinguish, and differentiate between things in the world around them. In other words, what is the basis of conceptual thought, and how does this relate to language capacity as a whole? On the one hand, behaviourists have argued that human beings start life as a ‘blank slate’, and our language capacity is something that we learn by exposure to the language of others. On the other, Noam Chomsky proposed that humans are born with an innate capacity for language, as shown by the ease with which children rapidly learn a wide vocabulary, but also by their remarkable capacity for linking words together in complex grammatical structures. The chapter then looks at developments in the search for a biological basis for human language. Studies suggest that language in humans involves a complex interplay between a number of different genes, FOXP2 being a key one, which affect the connections between neurons in specific parts of the brain. However, it still remains unclear whether FOXP2 gene affects neurons involved in language processing per se or those that control muscles involved in speech.