title: Measuring and characterising inbound sessions in residential DSL traffic

authors: Alcock, Shane

subjects: DSL

abstract: It has been assumed that the need for successful NAT traversal discourages residential DSL users from running services or applications that require them to accept connections from remote hosts. However, there are now numerous approaches for NAT traversal but there have been no studies measuring the prevalence of DSL users accepting inbound sessions. This paper presents an analysis of TCP and UDP flows initiated by remote clients to a group of residential DSL users, using packet traces captured from a New Zealand ISP between 2009 and 2011. Our analysis reveals that over half of all measured users accepted at least one inbound TCP or UDP session. There was no dominant port being used to accept sessions and port usage was spread over thousands of different ports. Skype and BitTorrent were the most popular application protocols observed and had increased in popularity over time. We also report on the use of dual SYNs to perform TCP NAT traversal in our data.

text: Measuring and characterising inbound sessions in residential DSL traffic It has been assumed that the need for successful NAT traversal discourages residential DSL users from running services or applications that require them to accept connections from remote hosts. However, there are now numerous approaches for NAT traversal but there have been no studies measuring the prevalence of DSL users accepting inbound sessions. This paper presents an analysis of TCP and UDP flows initiated by remote clients to a group of residential DSL users, using packet traces captured from a New Zealand ISP between 2009 and 2011. Our analysis reveals that over half of all measured users accepted at least one inbound TCP or UDP session. There was no dominant port being used to accept sessions and port usage was spread over thousands of different ports. Skype and BitTorrent were the most popular application protocols observed and had increased in popularity over time. We also report on the use of dual SYNs to perform TCP NAT traversal in our data.

year: 2011

title: Wonder and empathy in environmental ethics

authors: van Zyl, Liezl

abstract: My aim in this article to argue that wonder is a basic moral capacity, akin to the capacity for empathy, that is required for the virtue of environmental benevolence. I begin by examining Geoffrey Frasz’s account of benevolence as a set of environmental virtues, and I identify a gap that not only threatens the coherence of Frasz’s theory, but also points to an important cause of our widespread apathy toward the environment: the inherently limited and biased nature of the capacity for empathy. My proposal is that the capacity for wonder can fill this gap, that is, I think wonder can play the role in environmental benevolence that empathy plays in interpersonal benevolence.

text: Wonder and empathy in environmental ethics My aim in this article to argue that wonder is a basic moral capacity, akin to the capacity for empathy, that is required for the virtue of environmental benevolence. I begin by examining Geoffrey Frasz’s account of benevolence as a set of environmental virtues, and I identify a gap that not only threatens the coherence of Frasz’s theory, but also points to an important cause of our widespread apathy toward the environment: the inherently limited and biased nature of the capacity for empathy. My proposal is that the capacity for wonder can fill this gap, that is, I think wonder can play the role in environmental benevolence that empathy plays in interpersonal benevolence.

year: 2025

title: A survey of psychologists’ opinions and behaviours on aspects of Maori mental health

authors: Sawrey, Richard

subjects: Maori

abstract: In the majority of settings where psychologists work, particularly in State health and justice settings, Maori people are substantially over represented relative to their numbers in the general population (Durie, 1987). This situation has raised serious questions about the adequacy of both mental health services and professionals in their provision of appropriate services for Maori people. (Hui Whakaoranga, 1984; Durie, 1985). Recommendations have been given to address these deficiencies. Te Hui Whakaoranga (l984) recommended a recruitment programme for Maori into health professions and training for health workers in Maori culture. The Committee of Inquiry into Procedures used in Psychiatric Hospitals (1988) pointed out that health professionals are rarely educated in taha Maori or the application of taha Maori to the service they provide. They stated that many current training programmes create a barrier to Maori people entering the health professions. They recommended that changes occur in both the in - service and basic training of health professionals.

text: A survey of psychologists’ opinions and behaviours on aspects of Maori mental health In the majority of settings where psychologists work, particularly in State health and justice settings, Maori people are substantially over represented relative to their numbers in the general population (Durie, 1987). This situation has raised serious questions about the adequacy of both mental health services and professionals in their provision of appropriate services for Maori people. (Hui Whakaoranga, 1984; Durie, 1985). Recommendations have been given to address these deficiencies. Te Hui Whakaoranga (l984) recommended a recruitment programme for Maori into health professions and training for health workers in Maori culture. The Committee of Inquiry into Procedures used in Psychiatric Hospitals (1988) pointed out that health professionals are rarely educated in taha Maori or the application of taha Maori to the service they provide. They stated that many current training programmes create a barrier to Maori people entering the health professions. They recommended that changes occur in both the in - service and basic training of health professionals.

year: 1993