scholarly journals Marine carbonate sedimentation in volcanic settings

2021 ◽  
pp. SP520-2020-251
Author(s):  
Stephen W. Lokier
Keyword(s):  
Early Recognition ◽  
Carbonate Sediments ◽  
Biological Communities ◽  
Carbonate Sedimentation ◽  
Complex Interactions ◽  
Systems Research ◽  
Marine Carbonate ◽  
Recent Developments ◽  
Detailed Assessment ◽  
State Of The Science

AbstractCarbonate sediments have been produced and deposited in areas of active volcanism since, at least, the Paleoarchean. Despite early recognition of a significant relationship between volcanism and marine carbonate systems, research in this field has been largely neglected. With increasing recognition of the accelerating effects and significance of anthropogenically-driven climate change on the ocean-atmosphere system, the time is ripe for studying volcanism-influenced carbonates as a natural analogue for future environmental scenarios. We undertake a detailed assessment of the state-of-the-science in our understanding of these systems. We identify significant bilateral division in approaches, with the geological and biological communities rarely interacting. The study of ancient volcanic-carbonate systems, in particular, appears to have ‘fallen-between-two-stools’ with both the volcanic and sedimentological communities shying away from studying these cross-disciplinary systems. Observations of recent volcanic-carbonate interactions are challenging, long periods of volcanic quiescence are punctuated by brief episodes of activity. Recent developments in robust remotely deployable instrumentation offer an opportunity to safely undertake sustained monitoring of these systems before, during and after eruptions. Informed assessment of the likely responses of carbonate ecosystems to future climatic challenges requires the initiation of an integrated, collaborative, cross-disciplinary approach to studying the complex interactions within these challenging mixed depositional systems.

scholarly journals Prediction of pedal cyclists and pedestrian fatalities from total monthly accidents and registered private car numbers

2015 ◽  
Vol 34 (2) ◽  
pp. 29-35 ◽  
Author(s):  
Kiarash Ghasemlou ◽  
Metin Mutlu Aydin ◽  
Mehmet Sinan Yıldırım
Keyword(s):  
Traffic Accidents ◽  
World Health ◽  
Injury Rates ◽  
The Road ◽  
Statistical Institute ◽  
Complex Interactions ◽  
Recent Developments ◽  
Detailed Assessment ◽  
Health Organization ◽  
The Impact

Accident prevention is relatively a complex issue considering the effectiveness of the injury prevention technologies as well as more detailed assessment of the complex interactions between the road condition, vehicle and human factor. For many years, highway agencies and vehicle manufacturers showed great efforts to reduce the injuries resulting from the vehicle crashes. Many researchers used a broad range of methods to evaluate the impact of several factors on traffic accidents and injuries. Recent developments lead up to capable for determining the effects of these factors. According to World Health Organization (WHO), cyclists and pedestrians comprise respectively 1.6% and 16.3% in traffic crash fatalities in 2013. Also in Turkey crash fatalities for pedestrian and cyclists are respectively 20.6% and 3% according to Turkish Statistical Instıtute data in 2013. The relationship between cycling and pedestrian rates and injury rates over time is also unknown. This paper aims to predict the crash severity with the traffic injury data of the Konya City in Turkey by implementing the Artificial Neural Networks (ANN), Regression Trees (RT) and Multiple Linear Regression modelling (MLRM) method.

Chapter I. The British Economy to End-1972

1973 ◽  
Vol 63 ◽  
pp. 9-33
Keyword(s):  
Full Employment ◽  
Annual Review ◽  
Short Term ◽  
Term Forecast ◽  
Recent Developments ◽  
Detailed Assessment ◽  
Employment Potential ◽  
Economic Developments

Chapter I presents a general review of economic developments in 1972 including an attempt to assess the position of the economy in relation to its full employment potential. Chapter II includes the usual short-term forecast of likely developments over the next eighteen months together with a less detailed assessment of prospects over the rather longer term. Recent developments in and short-term prospects for various industries within the industrial production index are dealt with in some detail in Chapter III, while the final chapter contains our annual review and forecasts for the World Economy.

Multibody Dynamics — Modeling and Analysis Methods

1991 ◽  
Vol 44 (3) ◽  
pp. 109-117 ◽  
Author(s):  
R. L. Huston
Keyword(s):  
Multibody Dynamics ◽  
Multibody Systems ◽  
System Modeling ◽  
Space Structures ◽  
Dynamics Modeling ◽  
Research Activity ◽  
Modeling And Analysis ◽  
Physical Systems ◽  
Systems Research ◽  
Recent Developments

A review of recent developments in multibody dynamics modeling and analysis is presented. Multibody dynamics is one of the fastest growing fields of applied mechanics. Multibody systems are increasingly being employed as models of physical systems such as robots, mechanisms, chains, cables, space structures, and biodynamic systems. Research activity in multibody dynamics has stimulated research in a number of subfields including formulation methods, system modeling, numerical procedures, and graphical representations. These are also discussed and reviewed.

scholarly journals Phylogeny, phylogeography, phylobetadiversity and the molecular analysis of biological communities

2011 ◽  
Vol 366 (1576) ◽  
pp. 2391-2402 ◽  
Author(s):  
Brent C. Emerson ◽  
Francesco Cicconardi ◽  
Pietro P. Fanciulli ◽  
Peter J. A. Shaw
Keyword(s):  
Community Structure ◽  
Community Composition ◽  
Molecular Genetic ◽  
Species Assemblages ◽  
Molecular Evidence ◽  
Biological Communities ◽  
Geographical Scale ◽  
Recent Developments ◽  
Community Complexity ◽  
Taxonomic Groups

There has been much recent interest and progress in the characterization of community structure and community assembly processes through the application of phylogenetic methods. To date most focus has been on groups of taxa for which some relevant detail of their ecology is known, for which community composition is reasonably easily quantified and where the temporal scale is such that speciation is not likely to feature. Here, we explore how we might apply a molecular genetic approach to investigate community structure and assembly at broad taxonomic and geographical scales, where we have little knowledge of species ecology, where community composition is not easily quantified, and where speciation is likely to be of some importance. We explore these ideas using the class Collembola as a focal group. Gathering molecular evidence for cryptic diversity suggests that the ubiquity of many species of Collembola across the landscape may belie greater community complexity than would otherwise be assumed. However, this morphologically cryptic species-level diversity poses a challenge for attempts to characterize diversity both within and among local species assemblages. Recent developments in high throughput parallel sequencing technology, combined with mtDNA barcoding, provide an advance that can bring together the fields of phylogenetic and phylogeographic analysis to bear on this problem. Such an approach could be standardized for analyses at any geographical scale for a range of taxonomic groups to quantify the formation and composition of species assemblages.

Sign in / Sign up

Export Citation Format

Share Document