scholarly journals Special Issue “Raman Spectroscopy: A Spectroscopic ‘Swiss-Army Knife’”

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2852
Author(s):  
Keith C. Gordon
Keyword(s):  
Raman Spectroscopy ◽  
Special Issue ◽  
Wide Range

This special issue highlights the astonishingly wide range of scientific studies that use Raman spectroscopy to provide insight [...]

scholarly journals What If the ‘Anthropocene’ Is Not Formalized as a New Geological Series/Epoch?

Quaternary ◽  
2018 ◽  
Vol 1 (3) ◽  
pp. 24 ◽  
Author(s):  
Valentí Rull
Keyword(s):  
Present State ◽  
Executive Committee ◽  
Working Group ◽  
Recent Literature ◽  
Special Issue ◽  
Environmental Sciences ◽  
International Union ◽  
Quaternary Stratigraphy ◽  
Wide Range ◽  
Geological Sciences

In the coming years, the Anthropocene Working Group (AWG) will submit its proposal on the ‘Anthropocene’ to the Subcommission of Quaternary Stratigraphy (SQS) and the International Commission on Stratigraphy (ICS) for approval. If approved, the proposal will be sent to the Executive Committee of the International Union of Geological Sciences (IUGS) for ratification. If the proposal is approved and ratified, then the ‘Anthropocene’ will be formalized. Currently, the ‘Anthropocene’ is a broadly used term and concept in a wide range of scientific and non-scientific situations, and, for many, the official acceptance of this term is only a matter of time. However, the AWG proposal, in its present state, seems to not fully meet the requirements for a new chronostratigraphic unit. This essay asks what could happen if the current ‘Anthropocene’ proposal is not formalized by the ICS/IUGS. The possible stratigraphic alternatives are evaluated on the basis of the more recent literature and the personal opinions of distinguished AWG, SQS, and ICS members. The eventual impact on environmental sciences and on non-scientific sectors, where the ‘Anthropocene’ seems already firmly rooted and de facto accepted as a new geological epoch, are also discussed. This essay is intended as the editorial introduction to a Quaternary special issue on the topic.

scholarly journals Editorial for Special Issue “Industrial Minerals”

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 129
Author(s):  
Maite Garcia-Valles
Keyword(s):  
Industrial Minerals ◽  
Special Issue ◽  
Wide Range

Industrial minerals play an important role in keeping our society running, as they are used in a wide range of industrial and domestic applications [...]

scholarly journals Raman Spectroscopy Investigation of Graphene Oxide Reduction by Laser Scribing

2021 ◽  
Vol 7 (2) ◽  
pp. 48
Author(s):  
Vittorio Scardaci ◽  
Giuseppe Compagnini
Keyword(s):  
Raman Spectroscopy ◽  
Graphene Oxide ◽  
Reduce Graphene Oxide ◽  
Oxide Reduction ◽  
Material Parameters ◽  
Laser Scribing ◽  
Wide Range ◽  
Scan Speed ◽  
Laser Reduction

Laser scribing has been proposed as a fast and easy tool to reduce graphene oxide (GO) for a wide range of applications. Here, we investigate laser reduction of GO under a range of processing and material parameters, such as laser scan speed, number of laser passes, and material coverage. We use Raman spectroscopy for the characterization of the obtained materials. We demonstrate that laser scan speed is the most influential parameter, as a slower scan speed yields poor GO reduction. The number of laser passes is influential where the material coverage is higher, producing a significant improvement of GO reduction on a second pass. Material coverage is the least influential parameter, as it affects GO reduction only under restricted conditions.

scholarly journals Overview of Popular Techniques of Raman Spectroscopy and Their Potential in the Study of Plant Tissues

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1537
Author(s):  
Aneta Saletnik ◽  
Bogdan Saletnik ◽  
Czesław Puchalski
Keyword(s):  
Raman Spectroscopy ◽  
Cell Walls ◽  
Structural Changes ◽  
Spatial Information ◽  
Technological Development ◽  
Analytical Techniques ◽  
High Sensitivity ◽  
Plant Tissues ◽  
Wide Range ◽  
Identification Technique

Raman spectroscopy is one of the main analytical techniques used in optical metrology. It is a vibration, marker-free technique that provides insight into the structure and composition of tissues and cells at the molecular level. Raman spectroscopy is an outstanding material identification technique. It provides spatial information of vibrations from complex biological samples which renders it a very accurate tool for the analysis of highly complex plant tissues. Raman spectra can be used as a fingerprint tool for a very wide range of compounds. Raman spectroscopy enables all the polymers that build the cell walls of plants to be tracked simultaneously; it facilitates the analysis of both the molecular composition and the molecular structure of cell walls. Due to its high sensitivity to even minute structural changes, this method is used for comparative tests. The introduction of new and improved Raman techniques by scientists as well as the constant technological development of the apparatus has resulted in an increased importance of Raman spectroscopy in the discovery and defining of tissues and the processes taking place in them.

scholarly journals Image Segmentation and Object-Based Image Analysis for Environmental Monitoring: Recent Areas of Interest, Researchers’ Views on the Future Priorities

2020 ◽  
Vol 12 (11) ◽  
pp. 1772
Author(s):  
Brian Alan Johnson ◽  
Lei Ma
Keyword(s):  
Remote Sensing ◽  
Image Analysis ◽  
Image Segmentation ◽  
Online Survey ◽  
Accuracy Assessment ◽  
Learning Approaches ◽  
Special Issue ◽  
Object Based Image Analysis ◽  
Object Based ◽  
Wide Range

Image segmentation and geographic object-based image analysis (GEOBIA) were proposed around the turn of the century as a means to analyze high-spatial-resolution remote sensing images. Since then, object-based approaches have been used to analyze a wide range of images for numerous applications. In this Editorial, we present some highlights of image segmentation and GEOBIA research from the last two years (2018–2019), including a Special Issue published in the journal Remote Sensing. As a final contribution of this special issue, we have shared the views of 45 other researchers (corresponding authors of published papers on GEOBIA in 2018–2019) on the current state and future priorities of this field, gathered through an online survey. Most researchers surveyed acknowledged that image segmentation/GEOBIA approaches have achieved a high level of maturity, although the need for more free user-friendly software and tools, further automation, better integration with new machine-learning approaches (including deep learning), and more suitable accuracy assessment methods was frequently pointed out.

Editorial

2009 ◽  
Vol 11 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Manasi Kumar ◽  
Erica Burman
Keyword(s):  
Millennium Development Goals ◽  
Health Management ◽  
The Political ◽  
Special Issue ◽  
Wide Range ◽  
Critical Approaches ◽  
Development Goals ◽  
Short And Long Term ◽  
Primary Focus

We welcome readers to the first special issue (11.1) of the Journal of Health Management. We hope the readers find the articles and various reviews enriching and provocative, both in terms of the range of ideas and critical approaches addressed. The key theme of this double issue concerns the political limits of mega-development projects such as the Millennium Development Goals (MDGs). The primary focus of the articles collected here is to provide an insightful, constructive and in-depth critique of the United Nations (UN) MDGs along with critical deliberations on their short- and long-term implications not only for health management but also for a wide range of issues around development and social change.

scholarly journals Enhancing the resilience of coupled human and natural systems of alpine rangelands on the Qinghai-Tibetan Plateau

2015 ◽  
Vol 37 (1) ◽  
pp. i ◽  
Author(s):  
Shikui Dong ◽  
Ruth Sherman
Keyword(s):  
Tibetan Plateau ◽  
Science Policy ◽  
Sustainable Management ◽  
Environmental Changes ◽  
Policy Design ◽  
Rangeland Management ◽  
Special Issue ◽  
Natural Systems ◽  
Wide Range ◽  
Science Policy Interface

This special issue covers a wide range of topics on the protection and sustainable management of alpine rangelands on the Qinghai-Tibetan Plateau (QTP), including Indigenous knowledge of sustainable rangeland management, science-policy interface for alpine rangeland biodiversity conservation, adaptations of local people to social and environmental changes and policy design for managing coupled human-natural systems of alpine rangelands.

The Study of Hindu New Religious Movements

2011 ◽  
Vol 15 (2) ◽  
pp. 6-19
Author(s):  
Gene R. Thursby
Keyword(s):  
Transcendental Meditation ◽  
Social World ◽  
Religious Movements ◽  
New Religious Movements ◽  
Special Issue ◽  
Social Harmony ◽  
Wide Range ◽  
The World ◽  
The Status ◽  
Arya Samaj

The category of Hindu new religious movements is conventional and useful, but has imprecise boundaries. Scholars tend to include within it some groups that have claimed they are not Hindu (Arya Samaj, Ramakrishna Mission) or not religious (Transcendental Meditation). Within its wide range are world-affirming groups dedicated to transforming the physical and social world as well as world-transcending groups that find the status of the world doubtful and their purpose at another level or in another realm. The four articles in this special issue of Nova Religio on Hindu new religious movements represent several aspects of this category, and the potential for accommodation of basic differences, social harmony, and even world-transcendence.

Cracking and Phase Transformation in Silicon During Nanoindentation

2003 ◽  
Vol 795 ◽  
Author(s):  
Jae-il Jang ◽  
Songqing Wen ◽  
M. J. Lance ◽  
I. M. Anderson ◽  
G. M. Pharr
Keyword(s):  
Raman Spectroscopy ◽  
Phase Transformation ◽  
Single Crystals ◽  
Transformation Behavior ◽  
Amorphous Phases ◽  
Phase Transformation Behavior ◽  
Wide Range ◽  
Load Displacement ◽  
Indenter Geometry

ABSTRACTNanoindentation experiments were performed on single crystals of (100) Si using a series of triangular pyramidal indenters with centerline-to-face angles in the range 35.3° to 85.0°. The influences of the indenter geometry on cracking and phase transformation during indentation were systematically studied. Although reducing the indenter angle reduces the threshold load for cracking and increases the crack lengths, c, at a given indention load, P, the frequently observed relation between P and c3/2 is maintained for all of the indenters over a wide range of load. Features in the nanoindentation load-displacement curves in conjunction with Raman spectroscopy of the crystalline and amorphous phases in and around the contact impression show that the indenter geometry also plays a role in the phase transformation behavior. Results are discussed in relation to prevailing ideas about indentation cracking and phase transformation in silicon.

Editorial: Refashioning stories for celebrity counterpublics

2021 ◽  
Vol 10 (2) ◽  
pp. 145-152 ◽  
Author(s):  
Sabrina Moro ◽  
Samita Nandy ◽  
Kiera Obbard ◽  
Andrew Zolides
Keyword(s):  
Social Change ◽  
Identity Politics ◽  
Public Intellectuals ◽  
Special Issue ◽  
Social Significance ◽  
Starting Point ◽  
The Social ◽  
Wide Range ◽  
Dominant Ideologies ◽  
Ted Talks

Using celebrity narratives as a starting point, this Special Issue explores the social significance of storytelling for social change. It builds on the 8th Centre for Media and Celebrity Studies conference, which brought together scholars and media practitioners to explore how narratives inspired by the lives of celebrities, public intellectuals, critics and activists offer useful rhetorical tools to better understand dominant ideologies. This editorial further problematizes what it means to be a popular ‘storyteller’ using the critical lens of celebrity activism and life-writing. Throughout the issue, contributors analyse the politics of representation at play within a wide range of glamourous narratives, including documentaries, memoirs, TED talks, stand-up performances and award acceptance speeches in Hollywood and beyond. The studies show how we can strategically use aesthetic communication to shape identity politics in public personas and bring urgent social change in an image-driven celebrity culture.

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