scispace - formally typeset
Search or ask a question
Institution

Macquarie University

EducationSydney, New South Wales, Australia
About: Macquarie University is a education organization based out in Sydney, New South Wales, Australia. It is known for research contribution in the topics: Population & Laser. The organization has 14075 authors who have published 47673 publications receiving 1416184 citations. The organization is also known as: Macquarie uni.
Topics: Population, Laser, Galaxy, Anxiety, Mantle (geology)


Papers
More filters
Journal ArticleDOI
TL;DR: The role played by the Silk Roads in exchanging goods, tech nologies, and ideas between regions of agrarian civilization is well understood as mentioned in this paper, but the fact that they also exchanged goods and ideas among the pastoralist and agrary worlds is less well understood.
Abstract: Modern historiography has not fully appreciated the ecological complexity of the Silk Roads. As a result, it has failed to under stand their antiquity, or to grasp their full importance in Eurasian his tory. The role played by the Silk Roads in exchanging goods, tech nologies, and ideas between regions of agrarian civilization is well understood. Less well understood is the trans-ecological role of the Silk Roads?the fact that they also exchanged goods and ideas between the pastoralist and agrarian worlds. The second of these systems of exchange, though less well known, predated the more familiar "trans civilizational" exchanges, and was equally integral to the functioning of the entire system. A clear awareness of this system of trans-ecolog ical exchanges should force us to revise our understanding of the age, the significance, and the geography of the Silk Roads. Further, an appreciation of the double role of the Silk Roads affects our understanding of the history of the entire Afro-Eurasian region. The many trans-ecological exchanges mediated by the Silk Roads linked all regions of the Afro-Eurasian landmass, from its agrarian civ ilizations to its many stateless communities of woodland foragers and steppe pastoralists, into a single system of exchanges that is several mil lennia old. As a result, despite its great diversity, the history of Afro Eurasia has always preserved an underlying unity, which was expressed in common technologies, styles, cultures, and religions, even disease patterns. The extent of this unity can best be appreciated by contrast ing the history of Afro-Eurasia with that of pre-Columbian America. World historians are becoming increasingly aware of the underly ing unity of Afro-Eurasian history. Andre Gunder Frank and Barry

238 citations

Journal ArticleDOI
TL;DR: The findings suggest that regular or as-needed dosing with paracetamol does not affect recovery time compared with placebo in low-back pain, and question the universal endorsement of par acetamol in this patient group.

238 citations

Journal ArticleDOI
TL;DR: New evidence is reported that intraspecific variability can be a more important driver of the short-term functional response of plant communities following an extreme drought.
Abstract: Climate change is expected to increase the magnitude and the frequency of extreme climatic events such as droughts. Better understanding how plant communities will respond to these droughts is a major challenge. We expect the response to be a shift in functional trait values resulting from both species turnover and intraspecific trait variability, but little research has addressed the relative contribution of both components. We analysed the short-term functional response of subalpine grassland communities to a simulated drought by focusing on four leaf traits (LDMC: leaf dry matter content, SLA: specific leaf area, LNC: leaf nitrogen concentration and LCC: leaf carbon concentration). After evaluating species turnover and intraspecific variability separately, we determined their relative contribution in the community functional response to drought, reflected by changes in community-weighted mean traits. We found significant species turnover and intraspecific variability, as well as significant changes in community-weighted mean for most of the traits. The relative contribution of intraspecific variability to the changes in community mean traits was more important (42-99%) than the relative contribution of species turnover (1-58%). Intraspecific variability either amplified (for LDMC, SLA and LCC) or dampened (for LNC) the community functional response mediated by species turnover. We demonstrated that the small contribution of species turnover to the changes in community mean LDMC and LCC was explained by a lack of covariation between species turnover and interspecific trait differences.Synthesis. These results highlight the need for a better consideration of intraspecific variability to understand and predict the effect of climate change on plant communities. While both species turnover and intraspecific variability can be expected following an extreme drought, we report new evidence that intraspecific variability can be a more important driver of the short-term functional response of plant communities.

238 citations

Journal ArticleDOI
TL;DR: An objective hydteresis model to predict the storage heat flux in urban areas is presented in this article, which only requires land cover and net all-wave radiation as input, but it can be further refined to include anthropogenic heat release, the three-dimensional form of the surface, and can allow for changes in source area Tests against energy balance data from a site in Vancouver, BC indicate the model simulates most aspects of measured storage energy flux values for a suburban site in both winter and summer.

238 citations

Journal ArticleDOI
TL;DR: A highly sensitive electrocatalytic sensor designed and fabricated by the incorporation of NiO dope Pt nanostructure hybrid (NiO–Pt–H) showed an excellent catalytic activity and was used as a powerful tool for the determination of cysteamine in the presence of serotonin.
Abstract: A highly sensitive electrocatalytic sensor was designed and fabricated by the incorporation of NiO dope Pt nanostructure hybrid (NiO–Pt–H) as conductive mediator, bis (1,10 phenanthroline) (1,10-phenanthroline-5,6-dione) nickel(II) hexafluorophosphate (B,1,10,P,1,10, PDNiPF6), and electrocatalyst into carbon paste electrode (CPE) matrix for the determination of cysteamine. The NiO–Pt–H was synthesized by one-pot synthesis strategy and characterized by XRD, elemental mapping analysis (MAP), and FESEM methods. The characterization data, which confirmed good purity and spherical shape with a diameter of ⁓ 30.64 nm for the synthesized NiO–Pt–H. NiO–Pt–H/B,1,10, P,1,10, PDNiPF6/CPE, showed an excellent catalytic activity and was used as a powerful tool for the determination of cysteamine in the presence of serotonin. The NiO–Pt–H/B,1,10, P,1,10, PDNiPF6/CPE was able to solve the overlap problem of the two drug signals and was used for the determination of cysteamine and serotonin in concentration ranges of 0.003–200 µM and 0.5–260 µM with detection limits of 0.5 nM and 0.1 µM, using square wave voltammetric method, respectively. The NiO–Pt–H/B,1,10,P,1,10,PDNiPF6/CPE showed a high-performance ability for the determination of cysteamine and serotonin in the drug and pharmaceutical serum samples with the recovery data of 98.1–103.06%.

238 citations


Authors

Showing all 14346 results

NameH-indexPapersCitations
Yang Yang1712644153049
Peter B. Reich159790110377
Nicholas J. Talley158157190197
John R. Hodges14981282709
Thomas J. Smith1401775113919
Andrew G. Clark140823123333
Joss Bland-Hawthorn136111477593
John F. Thompson132142095894
Xin Wang121150364930
William L. Griffin11786261494
Richard Shine115109656544
Ian T. Paulsen11235469460
Jianjun Liu112104071032
Douglas R. MacFarlane11086454236
Richard A. Bryant10976943971
Network Information
Related Institutions (5)
Australian National University
109.2K papers, 4.3M citations

96% related

University of Queensland
155.7K papers, 5.7M citations

96% related

University of Sydney
187.3K papers, 6.1M citations

95% related

University of Melbourne
174.8K papers, 6.3M citations

95% related

University of New South Wales
153.6K papers, 4.8M citations

94% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023110
2022463
20214,106
20204,009
20193,549
20183,119