Effect of age at maturity on life-span and generation time of New Zealand common smelt, Retropinna retropinna (Richardson)

1996 ◽  
Vol 53 (3) ◽  
pp. 467-473 ◽  
Author(s):  
F J Ward ◽  
JAT Boubée
Keyword(s):  
New Zealand ◽  
Life Span ◽  
Generation Time ◽  
Age At Maturity ◽  
Effect Of Age

scholarly journals Verbal fluency: Effect of time on item generation

2011 ◽  
Vol 5 (2) ◽  
pp. 104-107 ◽  
Author(s):  
Mayra Jacuviske Venegas ◽  
Leticia Lessa Mansur
Keyword(s):  
Verbal Fluency ◽  
Generation Time ◽  
The Other ◽  
Final Test ◽  
Item Generation ◽  
Promising Tool ◽  
Phonemic Fluency ◽  
Fluency Effect ◽  
Effect Of Age ◽  
Test Result

Abstract The distribution of item generation/time in the performance of elderly on verbal fluency (VF) remains unknown. Objective: To analyze the number of items, their distribution and impact of the first quartile on the final test result. Methods: 31 individuals performed the tests (average age=74 years; schooling=8.16 years). Results: The number of items produced in the first quartile differed from the other quartiles for both semantic and phonologic VF where 40% of items were produced in the first quartile. No effect of age was found and schooling influenced performance on the first and second quartiles of semantic VF and on the 1st, 2nd and 3rd quartiles of phonemic VF. Discussion: This study contributes with the finding that asymptotic levels are attained prior to the 30 seconds observed in other studies, being reached at the 15-second mark. Furthermore, schooling was found to be associated to the number of items produced in both the first and 2nd quartiles for semantic VF, and in 1st, 2nd and 3rd quartiles for phonemic fluency. Conclusion: The schooling effect was noted both in semantic and executive aspects of VF. The brief form of the VF test may represent a promising tool for clinical evaluation.

Etiology of Obesity Over the Life Span: Ecologic and Genetic Highlights from New Zealand Cohorts

2013 ◽  
Vol 3 (1) ◽  
pp. 38-45 ◽  
Author(s):  
S. D. Poppitt ◽  
M. P. Silvestre ◽  
A. Liu
Keyword(s):  
New Zealand ◽  
Life Span

Effect of Age at Irradiation on Life Span in the Male Rat

1964 ◽  
Vol 22 (1) ◽  
pp. 106 ◽  
Author(s):  
David C. L. Jones ◽  
Donald J. Kimeldorf
Keyword(s):  
Life Span ◽  
Male Rat ◽  
Effect Of Age

scholarly journals Maximum intrinsic rate of population increase in sharks, rays, and chimaeras: the importance of survival to maturity

2016 ◽  
Vol 73 (8) ◽  
pp. 1159-1163 ◽  
Author(s):  
Sebastián A. Pardo ◽  
Holly K. Kindsvater ◽  
John D. Reynolds ◽  
Nicholas K. Dulvy
Keyword(s):  
Life Span ◽  
Reproductive Output ◽  
Extinction Risk ◽  
Intrinsic Rate ◽  
Population Increase ◽  
Age At Maturity ◽  
Average Life ◽  
Demographic Parameter ◽  
Average Life Span

The maximum intrinsic rate of population increase (rmax) is a commonly estimated demographic parameter used in assessments of extinction risk. In teleosts, rmax can be calculated using an estimate of spawners per spawner, but for chondrichthyans, most studies have used annual reproductive output (b) instead. This is problematic as it effectively assumes all juveniles survive to maturity. Here, we propose an updated rmax equation that uses a simple mortality estimator that also accounts for survival to maturity: the reciprocal of average life-span. For 94 chondrichthyans, we now estimate that rmax values are on average 10% lower than previously published. Our updated rmax estimates are lower than previously published for species that mature later relative to maximum age and those with high annual fecundity. The most extreme discrepancies in rmax values occur in species with low age at maturity and low annual reproductive output. Our results indicate that chondrichthyans that mature relatively later in life, and to a lesser extent those that are highly fecund, are less resilient to fishing than previously thought.

scholarly journals Elevation: Folding the Interior

2021 ◽  
Author(s):  
◽  
Kristin Grace Kilgour
Keyword(s):  
New Zealand ◽  
Life Span ◽  
Research Design ◽  
Financial Gains

<p>This research anticipates that by repurposing the interior of existing and vacant historic architecture, significant to the community it serves, the life span of buildings can be prolonged. This in turn will lead to the progress of New Zealand’s history in architecture.  This research proposes to introduce a transient intervention, in which design disregards the site context and is influenced by the historic materials. The design offers new and relative functions for buildings, thereby offering a stay of demolition, for a period of time. It reasons that the process of repurposing can be done exclusively through interior development, using installation methods that will not compromise the integrity of the historic materials. This will enable the design to be removed and the architecture to be returned to the condition it was in prior to the engagement of this research design. It is assumed by research that at this time the building’s historic value will outweigh the perceived financial gains of redevelopment.  Change is inevitable in society. However, architecture is not so malleable and tends to resist change. It needs help adjusting with time. When communities develop, buildings do not always meet their increasing demands. They can become too small or the programme loses relevance. According to Johannes Cramer and Stefan Breitling “architecture should outlive humans” (Cramer), however, Heritage New Zealand notes that in the last fourteen years 26 historically listed buildings have been demolished to accommodate redevelopment, in New Zealand.  This research takes three sites from Lower Hutt to represent this architecture in need. Each will give new insight for physical material and intangible features which are important to retain when working to preserve historic architecture.</p>

scholarly journals Elevation: Folding the Interior

2021 ◽  
Author(s):  
◽  
Kristin Grace Kilgour
Keyword(s):  
New Zealand ◽  
Life Span ◽  
Research Design ◽  
Financial Gains

<p>This research anticipates that by repurposing the interior of existing and vacant historic architecture, significant to the community it serves, the life span of buildings can be prolonged. This in turn will lead to the progress of New Zealand’s history in architecture.  This research proposes to introduce a transient intervention, in which design disregards the site context and is influenced by the historic materials. The design offers new and relative functions for buildings, thereby offering a stay of demolition, for a period of time. It reasons that the process of repurposing can be done exclusively through interior development, using installation methods that will not compromise the integrity of the historic materials. This will enable the design to be removed and the architecture to be returned to the condition it was in prior to the engagement of this research design. It is assumed by research that at this time the building’s historic value will outweigh the perceived financial gains of redevelopment.  Change is inevitable in society. However, architecture is not so malleable and tends to resist change. It needs help adjusting with time. When communities develop, buildings do not always meet their increasing demands. They can become too small or the programme loses relevance. According to Johannes Cramer and Stefan Breitling “architecture should outlive humans” (Cramer), however, Heritage New Zealand notes that in the last fourteen years 26 historically listed buildings have been demolished to accommodate redevelopment, in New Zealand.  This research takes three sites from Lower Hutt to represent this architecture in need. Each will give new insight for physical material and intangible features which are important to retain when working to preserve historic architecture.</p>

scholarly journals Impact of war on veteran life span: natural experiment involving combat versus non-combat exposed military personnel

2021 ◽  
pp. e001991
Author(s):  
Nick Wilson ◽  
C Clement ◽  
J A Summers ◽  
G Thomson ◽  
G Harper
Keyword(s):  
World War Ii ◽  
New Zealand ◽  
Life Span ◽  
Military Personnel ◽  
Natural Experiment ◽  
Combat Exposure ◽  
Average Life Span ◽  
High Level ◽  
The Military ◽  
The Impact

IntroductionThere is still uncertainty around the impact of combat exposure on the life span of war veterans. Therefore we made use of a natural experiment to study the impact on veteran life span of combat versus non-combat exposure in World War II (WW2).MethodsThe combat-exposed military personnel were derived from a random (10%) sample of the military roll of the 28th (Māori) Battalion from New Zealand. One non-combat cohort was the 15th Reinforcements of this same Battalion, since the war ended before they reached the front line. The other non-combat cohort were Māori personnel who were only involved in Jayforce, which occupied Japan at the end of the WW2. Data on life span were mainly derived from an official repository of birth and death records, but supplemented with other sources, including military files.ResultsWhen comparing life spans of service veterans, there was no statistically significant reduction for the average life span of the 234 combat-exposed veterans in our sample from the 28th (Māori) Battalion (66.7 years), relative to the Māori veterans from two non-combat cohorts: the 132 personnel in the 15th Reinforcements (67.2 years) and the 147 personnel in Jayforce (66.9 years).ConclusionsDespite a very high level of wounding in the combat-exposed group (48%), there were no statistically significant reductions in life span between this group and comparable non-combat exposed veterans. This finding contrasts to life span reductions found in a similar study of New Zealand veterans of WW1.

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