title: Melatonin and sleep responses following exercise in elite female athletes

authors: O'Donnell, Shannon Lea

subjects: Actigraphy

abstract: Objective: To determine the melatonin concentrations and subsequent sleep indices of elite netball athletes following a training day when compared to a control day. Methods: Ten elite female netball athletes (mean ± SD; age = 23 ± 6 yrs) provided saliva samples PRE (17:15h) and POST (22:00h) a training session, and a day with no training (CONTROL). Sleep monitoring was performed using wrist actigraphy to assess total time in bed (TTB), total sleep time (TST), sleep efficiency (SE) and sleep latency (SL). Results: Melatonin levels were significantly lower (p < 0.05), both PRE and POST the training condition (6.2 and 17.6 pg/mL, respectively) when compared to the CONTROL (14.8 and 24.3 pg/mL, respectively). There were no significant differences observed between conditions for any of the sleep variables. However, a small reduction in TST could be observed following the training session condition compared to the CONTROL condition. Conclusion: The scheduling of netball training in the evening is shown to suppress salivary melatonin levels. This may have an influence on subsequent sleep following night-time exercise.

text: Melatonin and sleep responses following exercise in elite female athletes Objective: To determine the melatonin concentrations and subsequent sleep indices of elite netball athletes following a training day when compared to a control day. Methods: Ten elite female netball athletes (mean ± SD; age = 23 ± 6 yrs) provided saliva samples PRE (17:15h) and POST (22:00h) a training session, and a day with no training (CONTROL). Sleep monitoring was performed using wrist actigraphy to assess total time in bed (TTB), total sleep time (TST), sleep efficiency (SE) and sleep latency (SL). Results: Melatonin levels were significantly lower (p < 0.05), both PRE and POST the training condition (6.2 and 17.6 pg/mL, respectively) when compared to the CONTROL (14.8 and 24.3 pg/mL, respectively). There were no significant differences observed between conditions for any of the sleep variables. However, a small reduction in TST could be observed following the training session condition compared to the CONTROL condition. Conclusion: The scheduling of netball training in the evening is shown to suppress salivary melatonin levels. This may have an influence on subsequent sleep following night-time exercise.

year: 2019

title: Synthesis and crystal structure of the first complex containing a chelating selenourea dianion ligand

authors: Nicholson, Brian K.

subjects: Platinum complexes

abstract: Reaction of N,N′-diphenylselenourea, PhNHC(Se)NHPh, with cis-[PtCl2(PPh3)2] and triethylamine in hot methanol gives the first example of a selenourea dianion complex, [Pt{SeC(=NPh)NPh}(PPh3)2] isolated as a yellow solid in high yield. The structure of the complex was determined by X-ray crystallography and found to be similar to the related thiourea dianion complex [Pt{SC(=NPh)NPh}(PPh3)2], with a Pt---Se---C---N four-membered ring. The antitumour activity (P388 murine leukaemia cells) of the selenourea dianion complex was determined, together with a small selection of related platinum(II)-thiourea dianion complexes (prepared by an analogous method) for comparison. The complex [Pt{SC(=NMe)NMe}(PPh3)2] showed high activity [IC50 1.0 μM], with the other complexes showing moderate to low activity.

text: Synthesis and crystal structure of the first complex containing a chelating selenourea dianion ligand Reaction of N,N′-diphenylselenourea, PhNHC(Se)NHPh, with cis-[PtCl2(PPh3)2] and triethylamine in hot methanol gives the first example of a selenourea dianion complex, [Pt{SeC(=NPh)NPh}(PPh3)2] isolated as a yellow solid in high yield. The structure of the complex was determined by X-ray crystallography and found to be similar to the related thiourea dianion complex [Pt{SC(=NPh)NPh}(PPh3)2], with a Pt---Se---C---N four-membered ring. The antitumour activity (P388 murine leukaemia cells) of the selenourea dianion complex was determined, together with a small selection of related platinum(II)-thiourea dianion complexes (prepared by an analogous method) for comparison. The complex [Pt{SC(=NMe)NMe}(PPh3)2] showed high activity [IC50 1.0 μM], with the other complexes showing moderate to low activity.

year: 2003-11-01

title: Developing community and social psychology for Aotearoa: Experiences from a New Zealand programme of indigenization

authors: Thomas, David R.

subjects: indigenous psychology

abstract: Experiences related to developing an indigenous community and social psychology
in the teaching of psychology at the University of Waikato in Aotearoa/New Zealand
are described. The process of localization emphasizes the need to interpret
"universal" concepts in terms of local cultural patterns and to elaborate psychological
concepts derived from the cultures of indigenous peoples. The localization of
psychology in New Zealand involves: (a) differences between the dominant United
States cultural pattern, in which much English-language psychology is embedded,
and New Zealand cultural patterns; and (b) differences between the dominant
Pakeha (Anglo-New Zealander) cultural patterns and the cultural patterns of
indigenous Maori peoples. These cultural differences involve contrasts between
individualistic and collective conceptions of self-identities and social identities, and
alternative conceptions of community needs.
Three processes relevant to localization are outlined: socio-cultural contextualization,
agenda-setting, and knowledge of cultural styles. Socio-cultural contextualization
refers to the relevance of psychological knowledge, taught in dominant national
institutions, to local social, cultural and political systems. Agenda-setting focuses on
how the dominant themes in teaching and research within psychology are selected,
and the relevance of these themes to community needs. Knowledge of local cultural
styles is required to describe and teach professional roles that are congruent with
such cultural styles.

text: Developing community and social psychology for Aotearoa: Experiences from a New Zealand programme of indigenization Experiences related to developing an indigenous community and social psychology
in the teaching of psychology at the University of Waikato in Aotearoa/New Zealand
are described. The process of localization emphasizes the need to interpret
"universal" concepts in terms of local cultural patterns and to elaborate psychological
concepts derived from the cultures of indigenous peoples. The localization of
psychology in New Zealand involves: (a) differences between the dominant United
States cultural pattern, in which much English-language psychology is embedded,
and New Zealand cultural patterns; and (b) differences between the dominant
Pakeha (Anglo-New Zealander) cultural patterns and the cultural patterns of
indigenous Maori peoples. These cultural differences involve contrasts between
individualistic and collective conceptions of self-identities and social identities, and
alternative conceptions of community needs.
Three processes relevant to localization are outlined: socio-cultural contextualization,
agenda-setting, and knowledge of cultural styles. Socio-cultural contextualization
refers to the relevance of psychological knowledge, taught in dominant national
institutions, to local social, cultural and political systems. Agenda-setting focuses on
how the dominant themes in teaching and research within psychology are selected,
and the relevance of these themes to community needs. Knowledge of local cultural
styles is required to describe and teach professional roles that are congruent with
such cultural styles.

year: 1994-08