title: Supercapacitor assisted low dropout regulators (SCALDO) with reduced switches: A new approach to high efficiency VRM designs

authors: Kularatna, Nihal

subjects: VRM

abstract: Supercapacitor assisted low dropout (SCALDO) regulator is a new approach to develop high efficiency DC-DC converters with supercapacitors used for energy recovery. One limitation in these topologies is that in some configurations a large number of low-speed switches are required. If the SCALDO technique is adapted to build voltage regulator modules (VRM), it is necessary to reduce number of switches combined with a high current capable LDO. A new topology-variation with less number of switches can be achieved by reconfiguring the original SCALDO and adding an extra LDO to the circuit. The paper presents a summary of some preliminary work, and experimental results for a 2.5V proof of concept-prototype.

text: Supercapacitor assisted low dropout regulators (SCALDO) with reduced switches: A new approach to high efficiency VRM designs Supercapacitor assisted low dropout (SCALDO) regulator is a new approach to develop high efficiency DC-DC converters with supercapacitors used for energy recovery. One limitation in these topologies is that in some configurations a large number of low-speed switches are required. If the SCALDO technique is adapted to build voltage regulator modules (VRM), it is necessary to reduce number of switches combined with a high current capable LDO. A new topology-variation with less number of switches can be achieved by reconfiguring the original SCALDO and adding an extra LDO to the circuit. The paper presents a summary of some preliminary work, and experimental results for a 2.5V proof of concept-prototype.

year: 2013

title: "So why did you do it?": Explanations provided by Child Pornography Offenders

authors: Merdian, Hannah L.

subjects: child pornography

abstract: Aim/ Background: There has been some professional discussion surrounding the "function" of child pornography offending for the individual offender: Why is someone looking at child pornography and what needs are met with this behaviour? The limited research in this area has mainly focused on information extracted from interview transcripts, which is likely biased by the offender's situation at the time.
Material/Method: Using a computerised online survey, child pornography offenders (with and without contact sex offences against minors) were questioned anonymously about their motivations to start viewing child pornography material.
Results: Thematic Analysis lead to the development of a topical map that revealed four main themes in their offence motivations: (1) no (direct) explanation provided, (2) initial triggers of their child pornography consumption, (3) emotional reasons, and (4) sexual reasons. These themes were analysed with regards to their subthemes, their relationship with each other and to the offending behaviour. Offender characteristics differed between the thematic groups. In addition, "pure" child pornography offenders were more likely than offenders with contact victims to provide more than one explanation for their behaviour. Individuals with contact offences were found more likely to admit a sexual interest in children.
Conclusions: These findings point to the value of a motivation-based offender typology. For treatment providers, the assessment of offence motivations appears as a promising source about an individual's risks and needs.

text: "So why did you do it?": Explanations provided by Child Pornography Offenders Aim/ Background: There has been some professional discussion surrounding the "function" of child pornography offending for the individual offender: Why is someone looking at child pornography and what needs are met with this behaviour? The limited research in this area has mainly focused on information extracted from interview transcripts, which is likely biased by the offender's situation at the time.
Material/Method: Using a computerised online survey, child pornography offenders (with and without contact sex offences against minors) were questioned anonymously about their motivations to start viewing child pornography material.
Results: Thematic Analysis lead to the development of a topical map that revealed four main themes in their offence motivations: (1) no (direct) explanation provided, (2) initial triggers of their child pornography consumption, (3) emotional reasons, and (4) sexual reasons. These themes were analysed with regards to their subthemes, their relationship with each other and to the offending behaviour. Offender characteristics differed between the thematic groups. In addition, "pure" child pornography offenders were more likely than offenders with contact victims to provide more than one explanation for their behaviour. Individuals with contact offences were found more likely to admit a sexual interest in children.
Conclusions: These findings point to the value of a motivation-based offender typology. For treatment providers, the assessment of offence motivations appears as a promising source about an individual's risks and needs.

year: 2013

title: Māori & Psychology Research Unit Annual Report 2012

authors: Waitoki, Waikaremoana

abstract: Annual report of the Māori and Psychology Research Unit (MPRU) 2012. The unit was established in August of 1997. The unit is designed to provide a catalyst and support network for enhancing research concerning the psychological needs, aspirations, and priorities of Maori people. The MPRU is well situated to draw together skilled and experienced interdisciplinary research groups by networking and establishing working relationships with staff and students within the Faculty of Arts and Social Sciences, the University, and the wider community.

text: Māori & Psychology Research Unit Annual Report 2012 Annual report of the Māori and Psychology Research Unit (MPRU) 2012. The unit was established in August of 1997. The unit is designed to provide a catalyst and support network for enhancing research concerning the psychological needs, aspirations, and priorities of Maori people. The MPRU is well situated to draw together skilled and experienced interdisciplinary research groups by networking and establishing working relationships with staff and students within the Faculty of Arts and Social Sciences, the University, and the wider community.

year: 2012