scholarly journals Perspectivas de la ecología del paisaje en entomología aplicada

2006 ◽  
Vol 7 (1) ◽  
pp. 54
Author(s):  
Elizabeth Aguilera Garramuño
Keyword(s):  
Landscape Ecology ◽  
Temporal Pattern ◽  
Research Groups ◽  
Ecological Process ◽  
Spatial And Temporal Patterns ◽  
New Techniques ◽  
Landscape Models ◽  
Recent Developments ◽  
Abundance And Distribution ◽  
Process Structure

<p>En este ensayo se analiza la contribución de la ‘ecología del paisaje’ al conocimiento de la dinámica espacial de los organismos con énfasis en el área de la entomología aplicada. Esta es una disciplina de investigación relativamente nueva en la ecología que estudia el efecto de la estructura de los paisajes sobre la abundancia y distribución de los organismos; también se define como el estudio del efecto de los patrones espaciales y temporales sobre los procesos ecológicos. Los términos ‘estructura’ y ‘patrones’ involucran el concepto de ‘heterogeneidad espacial’, características abordadas con una serie de técnicas nuevas como modelos e índices espaciales. Estos avances pueden contribuir a entender la dinámica espacial y temporal de los insectos en los agroecosistemas y complementar los enfoques actuales de investigación y manejo de problemas fitosanitarios. El objetivo de este artículo es estimular en los gremios académicos y de investigación la discusión sobre las perspectivas de la aplicación de la ecología del paisaje en el área de la entomología aplicada.</p><p> </p><p><strong>Views of landscape ecology in applied entomology</strong></p><p>Landscape ecology is the study of how landscape structure affects the abundance and distribution of organisms. Also it is defined as the study of the effect of spatial and temporal pattern in ecological process. Structure and pattern terms include spatial heterogeneity, which are approached through series of new techniques and software. Relatively recent developments of many techniques, such as landscape models and metrics, enable ecologists to examine spatial and temporal patterns. This paper is aimed at stimulating discussion amongst academic and research groups concerning current and future issues in landscape ecology in applied entomology.</p>

scholarly journals Magnetism Science with the Square Kilometre Array

Galaxies ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 53
Author(s):  
George Heald ◽  
Sui Mao ◽  
Valentina Vacca ◽  
Takuya Akahori ◽  
Ancor Damas-Segovia ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Large Scale ◽  
Galactic Nuclei ◽  
Dark Matter Annihilation ◽  
New Techniques ◽  
Square Kilometre Array ◽  
New Radio ◽  
Recent Developments ◽  
Using Data ◽  
The Impact

The Square Kilometre Array (SKA) will answer fundamental questions about the origin, evolution, properties, and influence of magnetic fields throughout the Universe. Magnetic fields can illuminate and influence phenomena as diverse as star formation, galactic dynamics, fast radio bursts, active galactic nuclei, large-scale structure, and dark matter annihilation. Preparations for the SKA are swiftly continuing worldwide, and the community is making tremendous observational progress in the field of cosmic magnetism using data from a powerful international suite of SKA pathfinder and precursor telescopes. In this contribution, we revisit community plans for magnetism research using the SKA, in light of these recent rapid developments. We focus in particular on the impact that new radio telescope instrumentation is generating, thus advancing our understanding of key SKA magnetism science areas, as well as the new techniques that are required for processing and interpreting the data. We discuss these recent developments in the context of the ultimate scientific goals for the SKA era.

scholarly journals Review on Acoustic Droplet Vaporization in Ultrasound Diagnostics and Therapeutics

2019 ◽  
Vol 2019 ◽  
pp. 1-20
Author(s):  
Ksenia Loskutova ◽  
Dmitry Grishenkov ◽  
Morteza Ghorbani
Keyword(s):  
Surrounding Medium ◽  
Chemical Properties ◽  
General Idea ◽  
Pressure Amplitude ◽  
Acoustic Droplet Vaporization ◽  
New Techniques ◽  
Droplet Vaporization ◽  
Ultrasound Diagnostics ◽  
Recent Developments ◽  
Physical And Chemical

Acoustic droplet vaporization (ADV) is the physical process in which liquid undergoes phase transition to gas after exposure to a pressure amplitude above a certain threshold. In recent years, new techniques in ultrasound diagnostics and therapeutics have been developed which utilize microformulations with various physical and chemical properties. The purpose of this review is to give the reader a general idea on how ADV can be implemented for the existing biomedical applications of droplet vaporization. In this regard, the recent developments in ultrasound therapy which shed light on the ADV are considered. Modern designs of capsules and nanodroplets (NDs) are shown, and the material choices and their implications for function are discussed. The influence of the physical properties of the induced acoustic field, the surrounding medium, and thermophysical effects on the vaporization are presented. Lastly, current challenges and potential future applications towards the implementation of the therapeutic droplets are discussed.

Pathophysiology of Tinnitus

1984 ◽  
Vol 93 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Aage R. Møsller
Keyword(s):  
Auditory Nerve ◽  
Neural Coding ◽  
Temporal Pattern ◽  
Phase Locking ◽  
Cranial Nerves ◽  
Nerve Fibers ◽  
Complex Sounds ◽  
Ephaptic Transmission ◽  
Recent Developments ◽  
Auditory Nerve Fibers

The hypothesis is presented that certain forms of tinnitus are related to abnormal phase-locking of discharges in groups of auditory nerve fibers. Recent developments in auditory neurophysiology have shown that neural coding of the temporal pattern of sounds plays an important role in the analysis of complex sounds. In addition, it has been demonstrated that when some other cranial nerves are damaged, artificial synapses can occur between individual nerve fibers such that ephaptic transmission between nerve fibers is facilitated. Such “crosstalk” between auditory nerve fibers is assumed to result in phase-locking of the spontaneous activity of groups of neurons which in the absence of external sounds creates a neural pattern that resembles that evoked by sounds.

Some new techniques and recent developments in isotope separations at Oak Ridge

1976 ◽  
Vol 139 ◽  
pp. 87-93 ◽  
Author(s):  
E. Newman ◽  
W.A. Bell ◽  
W.C. Davis ◽  
L.O. Love ◽  
W.K. Prater ◽  
...  
Keyword(s):  
New Techniques ◽  
Oak Ridge ◽  
Recent Developments

Mimetic Dynamics

1998 ◽  
Vol 3 (3) ◽  
pp. 211-218
Author(s):  
Natasha Barrett ◽  
Oyvind Hammer
Keyword(s):  
Natural World ◽  
New Techniques ◽  
Interactive Installation ◽  
The Past ◽  
Recent Developments ◽  
Physical Attributes ◽  
The Many ◽  
Physical Laws ◽  
The Relationship ◽  
Current Paradigm

The ‘art’ we produce today attempts to incorporate an increasing level of computer technology. There are many reasons for this trend, the most significant being a thirst for an exploration of the ‘new’, and the desire to parallel the increasing level of technology seeping into everyday life. However, when surveying recent developments we find an array of technology-related arts projects that instead of reaching forward into the previously unknown, often reproduce the past simply in a digital form, designed to appeal to our immediate senses but lacking in depth and substance. Likewise, it can be observed that in many cultures (ancient and modern), mimesis grows out of what seems to be a human reaction to technological change. Qualities familiar from past usage tend to be reproduced in new materials and with new techniques, regardless of appropriateness. This may have religious origins, or simply result from inertia, reworking concepts within the current paradigm. Parallels can be drawn from evolution, which can be observed to progress in a series of large advancements alternating with periods of extremely slow or zero development (Eldredge and Gould 1972), and from the progress of science, which seems to be similarly stepped (Kuhn 1962).This paper describes Mimetric Dynamics – an audiovisual interactive installation exploring one of the many possible relationships between nature and technology. In this work, real and simulated fluid dynamics are presented simultaneously, allowing both artist and viewer to explore the relationship between ‘digital’ and ‘analogue’ media in both sound and visual dimensions. It gains insight from physical laws and time flows derived from the natural world, where digital technology is used to produce mathematical models simulating real physical attributes. In doing so we are able to harness qualities of the ‘natural’ and use their characteristics to control aspects of the ‘artificial’ (virtual).

The Non Destructive Testing Methods Applied to Detect Cracks in the Hot Section of a Turbojet

2011 ◽  
Vol 61 ◽  
pp. 79-83 ◽  
Author(s):  
Salim Bennoud ◽  
Zergoug Mourad
Keyword(s):  
Guided Waves ◽  
Effective Means ◽  
Industrial Applications ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
New Techniques ◽  
Scientific Approach ◽  
Recent Developments ◽  
Non Destructive ◽  
Standard Techniques

All aircraft whatever they are; are regularly audited. These controls are mainly visual and external; other controls such as "major inspection" or "general revisions” are more extensive and require the dismantling of certain parts of the aircraft. Some parts of the aircraft remain inaccessible and are therefore more difficult to inspect (compressor, combustion chamber, and turbine). The means of detection must ensure controls either during initial construction, or at the time of exploitation of all the parts. The Non destructive testing (NDT) gathers the most widespread methods for detecting defects of a part or review the integrity of a structure. The aim of this work is to present the different (NDT) techniques and to explore their limits, taking into account the difficulties presented at the level of the hot part of a turbojet, in order to propose one or more effective means, non subjective and less expensive for the detection and the control of cracks in the hot section of a turbojet. To achieve our goal, we followed the following steps: - Acquire technical, scientific and practical basis of magnetic fields, electrical and electromagnetic, related to industrial applications primarily to electromagnetic NDT techniques. - Apply a scientific approach integrating fundamental knowledge of synthetic and pragmatic manner so as to control the implementation of NDT techniques to establish a synthesis in order to comparing between the use of different methods. - To review recent developments concerning the standard techniques and their foreseeable development: eddy current, ultrasonic guided waves ..., and the possibility of the implication of new techniques.

Gene transfer in animal production

1988 ◽  
Vol 12 ◽  
pp. 1-14
Author(s):  
A.J. Clark
Keyword(s):  
Gene Expression ◽  
Gene Transfer ◽  
Molecular Level ◽  
Milk Composition ◽  
Farm Animals ◽  
Research Groups ◽  
Genetic Changes ◽  
Pharmaceutical Proteins ◽  
Pronuclear Injection ◽  
Recent Developments

ABSTRACTGene transfer by pronuclear injection has been accomplished in farm animals by a number of research groups. Applications of this technology for improving milk composition, producing pharmaceutical proteins and manipulating physiology are described. Recent developments in our understanding of gene expression at the molecular level will increase the precision with which genetic changes can be made by gene transfer.

scholarly journals Interacting Quantum Atoms—A Review

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 4028 ◽  
Author(s):  
José Manuel Guevara-Vela ◽  
Evelio Francisco ◽  
Tomás Rocha-Rinza  ◽  
Ángel Martín Pendás
Keyword(s):  
Real Space ◽  
Relativistic Energy ◽  
Research Groups ◽  
Energy Partition ◽  
Recent Developments ◽  
Interacting Quantum Atoms ◽  
The One ◽  
Shed Light

The aim of this review is threefold. On the one hand, we intend it to serve as a gentle introduction to the Interacting Quantum Atoms (IQA) methodology for those unfamiliar with it. Second, we expect it to act as an up-to-date reference of recent developments related to IQA. Finally, we want it to highlight a non-exhaustive, yet representative set of showcase examples about how to use IQA to shed light in different chemical problems. To accomplish this, we start by providing a brief context to justify the development of IQA as a real space alternative to other existent energy partition schemes of the non-relativistic energy of molecules. We then introduce a self-contained algebraic derivation of the methodological IQA ecosystem as well as an overview of how these formulations vary with the level of theory employed to obtain the molecular wavefunction upon which the IQA procedure relies. Finally, we review the several applications of IQA as examined by different research groups worldwide to investigate a wide variety of chemical problems.

The Training of Doctoral Students of Psychology in Germany

2003 ◽  
Vol 8 (1) ◽  
pp. 18-22
Author(s):  
Gerhard Strube ◽  
Hans Spada
Keyword(s):  
Doctoral Students ◽  
Present Article ◽  
Doctoral Programs ◽  
Statistical Data ◽  
Psychology Students ◽  
Research Groups ◽  
Recent Developments ◽  
The Individual

Traditionally, doctoral students in Germany have been trained under the individual guidance of their advisors. Because of recent developments, doctoral students, especially psychology students, are now being trained within organized research groups, including broad national doctoral programs, the Graduiertenkollegs. The present article documents these changes and provides some statistical data.

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