Institution
Griffith University
Education•Brisbane, Queensland, Australia•
About: Griffith University is a education organization based out in Brisbane, Queensland, Australia. It is known for research contribution in the topics: Population & Poison control. The organization has 13830 authors who have published 49318 publications receiving 1420865 citations.
Topics: Population, Poison control, Health care, Tourism, Higher education
Papers published on a yearly basis
Papers
More filters
••
University of Wollongong1, National Museum of Natural History2, Lakehead University3, Macquarie University4, Griffith University5, University of Queensland6, American Museum of Natural History7, Victoria University of Wellington8, University of Bergen9, Australian National University10, Stony Brook University11
TL;DR: New stratigraphic and chronological evidence from Liang Bua is reported that does not support the ages inferred previously for the H. floresiensis holotype, or the time of last appearance of this species.
Abstract: New excavations in Liang Bua, where the remains of the ‘Hobbit’ (Homo floresiensis) were discovered, show that this diminutive human species used this cave between 190,000 and 50,000 years ago, and not until as recently as 12,000 years ago as previously interpreted; modern humans have been present in Australia since around 50,000 years ago, so whether Homo floresiensis survived long enough to witness the arrival of modern humans is still an open question. The discovery in Liang Bua cave on the island of Flores in Indonesia of the diminutive Homo floresiensis, an archaic member of the human family commonly known as the 'Hobbit', was an archaeological sensation in 2004. A source of considerable debate was the fact that it lived in Liang Bua cave between 95,000 and 12,000 years ago, after modern humans had colonized the area (around 50,000 years ago). Thomas Sutikna and colleagues — including many of the original research team — have gone back to Liang Bua, where new excavations have exposed previously unexplored parts of the cave. They have found that the layers of sediment in the cave are not deposited evenly, and it now seems that the H. floresiensis-bearing strata are older than was thought. New radiometric dating places the H. floresiensis remains and stone artefacts to between 190,000 and 50,000 years ago. Whether H. floresiensis survived long enough to witness the arrival of modern humans is an open question. Homo floresiensis, a primitive hominin species discovered in Late Pleistocene sediments at Liang Bua (Flores, Indonesia)1,2,3, has generated wide interest and scientific debate. A major reason this taxon is controversial is because the H. floresiensis-bearing deposits, which include associated stone artefacts2,3,4 and remains of other extinct endemic fauna5,6, were dated to between about 95 and 12 thousand calendar years (kyr) ago2,3,7. These ages suggested that H. floresiensis survived until long after modern humans reached Australia by ~50 kyr ago8,9,10. Here we report new stratigraphic and chronological evidence from Liang Bua that does not support the ages inferred previously for the H. floresiensis holotype (LB1), ~18 thousand calibrated radiocarbon years before present (kyr cal. bp), or the time of last appearance of this species (about 17 or 13–11 kyr cal. bp)1,2,3,7,11. Instead, the skeletal remains of H. floresiensis and the deposits containing them are dated to between about 100 and 60 kyr ago, whereas stone artefacts attributable to this species range from about 190 to 50 kyr in age. Whether H. floresiensis survived after 50 kyr ago—potentially encountering modern humans on Flores or other hominins dispersing through southeast Asia, such as Denisovans12,13—is an open question.
209 citations
••
EADA Business School1, University of South Florida2, University of Ottawa3, Lancaster University4, Pontifical Catholic University of Chile5, Griffith University6, University of Piura7, Austral University8, National Taiwan University9, Peking University10, Lingnan University11, University of Waikato12, University of California, Santa Cruz13, Tokyo Keizai University14, University of Puerto Rico15
TL;DR: The authors explored the availability of flexible work arrangements (FWA) and their relationship with manager outcomes of job satisfaction, turnover intentions, and work-to-family conflict (WFC) across country clusters and used individualism and collectivism to explain differences in FWA availability across Latin American, Anglo, and Asian clusters.
Abstract: The present study explored the availability of flexible work arrangements (FWA) and their relationship with manager outcomes of job satisfaction, turnover intentions, and work-to-family conflict (WFC) across country clusters. We used individualism and collectivism to explain differences in FWA availability across Latin American, Anglo, and Asian clusters. Managers from the Anglo cluster were more likely to report working in organisations that offer FWA compared to managers from other clusters. For Anglo managers, flextime was the only FWA that had significant favorable relationships with the outcome variables. For Latin Americans, part-time work negatively related with turnover intentions and strain-based WFC. For Asians, flextime was unrelated to time-based WFC, and telecommuting was positively associated with strain-based WFC. The clusters did not moderate the compressed work week and outcome relationships. Implications for practitioners adopting FWA practices across cultures are discussed.
209 citations
••
TL;DR: In this article, the authors argue that action research is more appropriate than traditional research for improving practice and professional and organisational learning, and they present a model to illustrate the distinction and relationship between thesis research, core research and thesis writing.
Abstract: This paper argues that action research is more appropriate than traditional research for improving practice, and professional and organisational learning. Our particular aim is to help postgraduates in the social and human sciences to understand and clarify the difference between core action research and thesis action research; that is, between collaborative, participatory action research in the field (aimed at practical improvement in a learning organisation) and independent action research in preparing the thesis (aimed at making an original contribution to knowledge). We present a model to illustrate the distinction and relationship between thesis research, core research and thesis writing.
208 citations
•
06 Sep 2006TL;DR: The role of volunteers in sport is examined in this paper, and the authors provide guidelines for implementing good volunteer management practice, including recruiting and retaining volunteers, government policy and international comparisons.
Abstract: The contribution of volunteers in terms of time and expertise is integral to sport development and delivery from 'sport for all' to elite levels. Good volunteer management and a clear understanding of the way volunteers work in sport is essential to protect and nurture this valuable group of individuals. This is the first book of its kind to examine the role of volunteers in sport, and links theory and research to provide clear guidelines for implementing good volunteer management practice. The authors are well known for their research in this subject and cover the key issues including: * developing sport through volunteers * recruiting and retaining volunteers * government policy and international comparisons * specialist volunteers - coaches, officials, administrators * relationships with paid staff * volunteers and the law. With nearly six million adult volunteers working in sport in the UK alone, and there being no other books currently on the market addressing this issue, Working with Volunteers is a valuable read for students and professionals working in sports management, sport development and sports policy.
208 citations
••
TL;DR: In this article, a multi-valence catalyst was applied on the surface of ball milled Mg powders to decrease the desorption temperature and increase the kinetics of hydrogen release from MgH2 by its catalytic effect on thermodynamics.
Abstract: A Ti-based multi-valence catalyst was coated on the surface of ball milled Mg powders (∼1 μm in diameter), aiming to decrease the desorption temperature and increase the kinetics of hydrogen release from MgH2 by its catalytic effect on thermodynamics. The catalysis coating was prepared by the chemical reaction between Mg powders and TiCl3 in THF solution, which is ∼10 nm in thickness and contains multiple valences in the form of Ti (0), TiH2 (+2), TiCl3 (+3) and TiO2 (+4). It is believed that the easier electron transfer among these different Ti valences plays a key role in enhancing the hydrogen recombination for the formation of a hydrogen molecule (e.g.). This recombination is generally regarded as the key barrier for hydrogen desorption of MgH2. Experimentally, temperature-programmed desorption (TPD) and isothermal dehydrogenation analysis demonstrate that the MgH2 – coated Ti based system (denoted as Mg–Ti) has excellent dehydrogenation properties, which can start to release H2 at about 175 °C and release 5 wt% H2 within 15 min at 250 °C. The dehydrogenation reaction entropy (ΔS) of the system is changed from 130.5 J K−1 mol−1 H2 to 136.1 J K−1 mol−1 H2, which reduces the Tplateau to 279 °C at an equilibrium pressure of 1 bar. A new mechanism has been proposed that multiple valence Ti sites act as the intermediate for electron transfers between Mg2+ and H−, which makes the recombination of H2 on Ti (in forms of compounds) surfaces much easier.
208 citations
Authors
Showing all 14162 results
Name | H-index | Papers | Citations |
---|---|---|---|
Rasmus Nielsen | 135 | 556 | 84898 |
Claudiu T. Supuran | 134 | 1973 | 86850 |
Jeffrey D. Sachs | 130 | 692 | 86589 |
David Smith | 129 | 2184 | 100917 |
Michael R. Green | 126 | 537 | 57447 |
John J. McGrath | 120 | 791 | 124804 |
E. K. U. Gross | 119 | 1154 | 75970 |
David M. Evans | 116 | 632 | 74420 |
Mike Clarke | 113 | 1037 | 164328 |
Wayne Hall | 111 | 1260 | 75606 |
Patrick J. McGrath | 107 | 681 | 51940 |
Peter K. Smith | 107 | 855 | 49174 |
Erko Stackebrandt | 106 | 633 | 68201 |
Phyllis Butow | 102 | 731 | 37752 |
John Quackenbush | 99 | 427 | 67029 |