3,500 research outputs found
Within-pair Copulations: Are Female Tree Swallows Feathering Their Own Nests?
No full textA variety of hypotheses has been proposed to explain why socially monogamous birds copulate repeatedly with their mates when only a single copulation is necessary to fertilize an entire clutch (Birkhead and Møller 1992, Petrie 1992, Hunter et al. 1993). Petrie (1992) hypothesized that a female should copulate frequently with her mate so as to reduce her mate’s involvement in extrapair copulations. By reducing her mate’s involvement in extrapair copulations, a female may: (1) avoid the transmission of parasites and sexually transmitted diseases (Hamilton 1990); (2) may avoid sperm depletion by her mate; and (3) may monopolize her mate’s paternal care (Petrie 1992)
Evaluation of a workplace suicide prevention program in the Australian manufacturing industry: protocol for a cluster-randomised trial of MATES in manufacturing
No full textMales are at higher risk of death by suicide than females in Australia, and among men, blue-collar males are at higher risk compared to other working males. In response, MATES in Construction developed a workplace suicide prevention program for the construction sector in 2007 that has been widely implemented in Australia. In the current project, this program is being adapted and trialled in the manufacturing sector. The common aims of MATES programs are to improve suicide prevention literacy, help-seeking intentions, and helping behaviours. The program will be evaluated using a cluster randomised-controlled trial design with waitlist controls across up to 12 manufacturing worksites in Australia. We hypothesise that after 8 months of the MATES in Manufacturing program, there will be significantly greater improvements in help-seeking intentions (primary outcome) compared to waitlist controls. The project is led by Deakin University in collaboration with the University of Melbourne, and in partnership with MATES in Construction and a joint labour-management Steering Group. Trial registration: The trial was registered retrospectively with the Australian New Zealand Clinical Trials Registry on 25 January 2022 (ACTRN12622000122752). Protocol version: 2.0, November 2022. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12888-022-04464-3
School mates
No full textGift of Dr. Mary Jane Esplen.Piano vocal [instrumentation]Mem'ry strays, to other days [first line]School mates we, [first line of chorus]B flat [key]Valse moderato [tempo]Popular song [form/genre]Children playing on wheeled cart by house [illustration]Etherington [graphic artist]D. S. Andrus & Co., Pianos, Sheet Music and Small Musical Instruments (Established 1860.) 21 W. Third St., Williamsport, PA. [dealer stamp]Publisher's advertisement on inside front and back cover [note
Mates and lovers : a history of gay New Zealand
No full textThe article reviews the book "Mates and Lovers: A History of Gay New Zealand," by Dr. Chris Brickell (2008: Godwit). Transcript of "Author Meets Critics" Session – SAANZ Conference, University of Otago, 2008
'Me and My Mates': Development and Evaluation of an Emotional and Social Competence Programme for Pre-Primary Children
No full textA well-accepted finding from past research is that children from low socio-economic status (SES) suburbs have a higher proportion of emotional and social competence problems that later manifest into psychopathology and social maladjustment than children from high SES suburbs. This thesis reports the development, trial and evaluation of a classroom-based emotional and social competence programme, 'Me and My Mates' for pre-primary-aged Western Australian children from low SES suburbs. It was hypothesised that children who participated in Me and My Mates would show significantly greater increases in emotional and social competence, as well as lower rates of emotional and behavioural problems, than children who did not participate.
A primary concern in developing the Me and My Mates programme was to identify crucial emotional and social competencies that constituted accepted emotional and social competence in pre-primary children. The identified competencies were: understanding emotions in self, emotional expressivity, emotional knowledge, emotional regulation, attribution of intent, empathy, sympathy, increased prosocial behaviour and minimal aggressive behaviour.
A pilot trial was undertaken and changes were made to the programme in light of the results. A second trial consisted of an experimental evaluation of the modified version. Four schools consented to participate in both trials, with one government and one private school in each of the experimental and control conditions. In Trial One, 110 child assessments, teacher questionnaires and parent questionnaires were completed at pre-intervention, post-intervention and three-month follow-up. In Trial Two, 68 child assessments were completed at pre-intervention, post-intervention and three-month follow-up.
Results from the child assessments in both trials indicated that emotional knowledge, sympathy, empathy and prosocial behaviour were significantly higher in children who participated in the programme at post-intervention and three-month follow-up compared to children in the control group, whereas hostile attribution of intent and aggression were significantly lower. Teacher and parent findings were also supportive of increases in children‘s emotional and social competence and partially supportive of lower rates of emotional and behavioural problems in children.
When assessed at three-month follow-up, 80% of the children in Trial One and 91% of the children in Trial Two used the emotional regulation techniques taught in the programme. Effect sizes were generally moderate to high, and were larger in Trial Two for most competencies.
The findings were similar to those described in previously published reports of programme evaluations in pre-primary children, supporting findings that classroom-based programmes can enhance and sustain emotional and social competence in five-year-old children. Extending on previous findings, empirical support was also provided for the enhancement of competencies that have previously not been measured including important social functions such as sympathy, empathy and lower hostile attribution of intent.
The goal of future research will be to investigate whether longer term positive outcomes for children who completed the Me and My Mates programme continue in their primary school years
1960s-1970s Bonnie Christensen and Basketball Team mates
No full textBlack and white photograph of Bonnie Christensen and team mates from the 4th ward after winning the Stake Basketball championship (late 60s early 70s
Male scorpionflies assess the amount of rival sperm transferred by females' previous mates
No full textEngqvist L. Male scorpionflies assess the amount of rival sperm transferred by females' previous mates. Evolution. 2007;61(6):1489-1494.Theory predicts that when sperm compete numerically, selection will favor males who vary the number of sperm they transfer with the immediate level of sperm competition. In this study, I measured male mating investment in response to both female mating status (virgin vs. mated) and the number of foreign sperm stored by females in a previous mating in the scorpionfly Panorpa cognata. Female sperm storage was manipulated by interrupting copulations at different time points. Female mating status did not significantly influence male mating investment, but resource-limited males invested strategically in relation to the amount of sperm stored by females in a previous mating. I found continuously decreasing male investment in response to increasing amounts of competing sperm. These results demonstrate an unprecedented male ability to assess the number of sperm stored by females. As a result, males are capable of an extraordinarily fine-tuned reaction to the intensity of sperm competition
Vitamin D Pathway Genes, Diet, and Risk of Renal Cell Carcinoma
No full textMediated by binding to the high-affinity vitamin D receptor (VDR), vitamin D forms a heterodimer complex with the retinoid-X-receptor (RXR). Variation in both genes has been shown to modify renal cell carcinoma (RCC) risk. Therefore, we investigated whether VDR and RXRA polymorphisms modify associations between RCC risk and frequency of dietary intake of vitamin D and calcium rich foods, and occupational ultraviolet exposure among 777 RCC case and 1035 controls from Central and Eastern Europe. A positive association was observed in this population between increasing dietary intake frequency of yogurt, while an inverse association was observed with egg intake frequency. RXRA polymorphisms, located 3′
of the coding sequence, modified associations between specific vitamin D rich foods and RCC risk, while RXRA polymorphisms, located in introns 1 and 4, modified associations with specific calcium rich foods. Results suggest that variants in the RXRA gene modified the associations observed between RCC risk and calcium and vitamin D intake
PRODUCTION DIFFERENCES BETWEEN REGISTERED COWS AND THEIR NONREGISTERED HERD-MATES
No full textWithin-herd contemporary comparisons of the first-lactation production of registered and nonregistered cows in herds enrolled in the New York Dairy Herd Improvement Associations suggest only small genetic differences between registered and nonregistered cows. In general, the registered Holsteins exceeded in production their nonregistered herd-mates, whereas the nonregistered cows had a slight advantage over their registered herd-mates for the Ayrshire, Guernsey, and Jersey breeds. Artificially sired cows had consistently higher production than their naturally sired herd-mates for all breeds. A definite increase in this advantage was noted for Holsteins in more recent years. No trend was apparent in the comparison of artificially sired registered and nonregistered cows for any of the breeds
V(D)J sequences retrieving.
No full text<p>In Figure are represented two situations that might occur during the V(D)J main clone sequence creation: i) The two mates are partially overlapped in the D region (A); ii) the two mates are not overlapped in the D region (B). In green letters are represented the extensions in both 5’ and 3’ directions of the V, D and J gene segments previously identified as rearranged, in black characters the portions of the considered mates that have been mapped on the V, D or J gene segments of interest and in red characters the nucleotides, extracted from the considered mates, that have been assigned to the VD and DJ junctions.</p
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