Role of EM in interface science and engineering

1992 ◽  
Vol 50 (1) ◽  
pp. 208-209
Author(s):  
Gareth Thomas
Keyword(s):  
Electron Microscopy ◽  
Phase Contrast ◽  
Displacement Vector ◽  
The Other ◽  
Science And Engineering ◽  
Cross Sectional ◽  
Important Group ◽  
The World ◽  
Interface Science

The world of materials is a world of interfaces. Indeed many technologically significant materials have properties both physical and mechanical which are determined by the structure, composition, and bonding of the interfaces within these materials. Thus, electron microscopy and microanalysis, with its high resolution and specificity of information, is one of the key methods needed for characterization. Imaging can be done by amplitude contrast but is limited by the factor g • R (where R is a displacement vector), or resolution in phase contrast, and in today's modern instruments atomic arrangements can be imaged directly, both in plan and cross-sectional views. Beautiful examples are now being published. However so far, few developments to utilize this information for materials design have been forthcoming. On the other hand, interface or intergranular phases are very important in many metallurgical and ceramic systems. In fact many materials are composites of one kind or another and composites involving intergranular phases are an important group of such materials.

Role of Implant Energy on Defect Structures for Phosphorus Implanted Silicon

1986 ◽  
Vol 71 ◽  
Author(s):  
S. Prussin ◽  
Kevin S. Jones
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Energy Range ◽  
Amorphous Layer ◽  
The Other ◽  
Defect Structures ◽  
Cross Sectional ◽  
Transmission Electron ◽  
Good Contact

AbstractA series of 18 wafers were implanted with phosphorus ions covering an energy range of 25 to 180 keV at a dose of 1 × 1015 cm−2 using a Waycool end station which provides good contact between the wafers and a thermal sink. Half the wafers had {100} surfaces and the other half {111} surfaces. The morphology of the as-implanted surface, defined by the thickness of the amorphous layer and whether that layer was submerged or lay at the surface, was affected by implant energy and surface orientation. After a 550°C regrowth and an activation anneal of 30 minutes at 900°C, the defect structures were evaluated by plan and cross-sectional transmission electron microscopy. A dear correlation was found between the implant morphology, the wafer orientation, and the defect structures.

Covid-19 – rumours and facts in media

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 171-174
Author(s):  
Tarare Toshida ◽  
Chaple Jagruti
Keyword(s):  
Social Media ◽  
Preventive Measures ◽  
Vital Role ◽  
The Other ◽  
Sources Of Information ◽  
Other Hand ◽  
Corona Virus ◽  
The People ◽  
The World

The covid-19 resulted in broad range of spread throughout the world in which India has also became a prey of it and in this situation the means of media is extensively inϑluencing the mentality of the people. Media always played a role of loop between society and sources of information. In this epidemic also media is playing a vital role in shaping the reaction in ϑirst place for both good and ill by providing important facts regarding symptoms of Corona virus, preventive measures against the virus and also how to deal with any suspect of disease to overcome covid-19. On the other hand, there are endless people who spread endless rumours overs social media and are adversely affecting life of people but we always count on media because they provide us with valuable answers to our questions, facts and everything in need. Media always remains on top of the line when it comes to stop the out spread of rumours which are surely dangerous kind of information for society. So on our side we should react fairly and maturely to handle the situation to keep it in the favour of humanity and help government not only to ϑight this pandemic but also the info emic.

Stock Price Jumps and Cross-Sectional Return Predictability

2013 ◽  
Vol 48 (5) ◽  
pp. 1519-1544 ◽  
Author(s):  
George J. Jiang ◽  
Tong Yao
Keyword(s):  
Stock Prices ◽  
Stock Price ◽  
Stock Return ◽  
Return Predictability ◽  
Value Premium ◽  
The Other ◽  
Stock Return Predictability ◽  
Cross Sectional ◽  
Return Dynamics

AbstractWe identify large discontinuous changes, known as jumps, in daily stock prices and explore the role of jumps in cross-sectional stock return predictability. Our results show that small and illiquid stocks have higher jump returns to the extent that cross-sectional differences in jumps fully account for the size and illiquidity effects. Based on value-weighted portfolios, jumps also account for the value premium. On the other hand, jumps are not the cause of momentum or net share issue effects. The findings of our study shed new light on stock return dynamics and present challenges to conventional explanations of stock return predictability.

scholarly journals The role of electron microscopy in kidney lesions: A review of its diagnostic importance

2013 ◽  
Vol 3 (5) ◽  
pp. 411-415
Author(s):  
AD Pant ◽  
K Solez
Keyword(s):  
Electron Microscopy ◽  
Light Microscopy ◽  
Renal Biopsy ◽  
Renal Pathology ◽  
Malignant Diseases ◽  
The World ◽  
Kidney Lesions ◽  
Diagnostic Importance

Electron microscopy is a technology which was at one time widely used for renal as well as non-renal benign and malignant diseases, but its use has been rapidly declining as hospitals all over the world cut down on expenses. This leaves the renal pathologist with only light microscopy and immunofl uorescence at his disposal to diagnose diseases. Few studies have stated the importance of electron microscopy in routine renal biopsy reporting. We look at different cases where electron microscopy has been helpful in diagnosis and review the literature to assess the role this investigative modality still has to play in modern renal pathology. Journal of Pathology of Nepal (2013) Vol. 3, No.1, Issue 5, 411-415 DOI: http://dx.doi.org/10.3126/jpn.v3i5.7871

Grieving Styles of Young Banso Widows

2018 ◽  
Vol 81 (3) ◽  
pp. 493-506
Author(s):  
Ruth Lange ◽  
Cass Dykeman ◽  
Catherine Beckett
Keyword(s):  
Social Norms ◽  
Social Desirability ◽  
Policy Research ◽  
The Other ◽  
Clinical Implications ◽  
Cross Sectional ◽  
The World ◽  
Cross Sectional Design

Grieving is manifested differently around the world depending on culture, social desirability, and social norms. Little is known about grieving patterns in Africa. As such, a study of the grieving patterns of young widows of the Banso tribe of the Cameroon was conducted. This examination used Doka and Martin’s model of grieving styles as the lens for this research. This model delineates a continuum of grief styles: instrumental on one end, intuitive on the other, and blended in the middle. This study used the validated Grief Pattern Inventory to determine if young Banso widows in this sample are intuitive, instrumental, or blended grievers. The study employed a cross-sectional design. The results indicated that 47% of the participants were intuitive grievers and 41% were blended grievers. Policy, research, and clinical implications emerging from the results were presented.

Trachelomonas volzii vs T. dubia (Euglenophyceae)—one or two separate species? Study on similarities and differences of the species

Phytotaxa ◽  
2018 ◽  
Vol 357 (1) ◽  
pp. 1 ◽  
Author(s):  
MAŁGORZATA PONIEWOZIK ◽  
KONRAD WOŁOWSKI ◽  
JOLANTA PIĄTEK
Keyword(s):  
Electron Microscopy ◽  
The Other ◽  
New Combinations ◽  
Separate Species ◽  
Phenotypic Changes ◽  
The World ◽  
Key Features ◽  
Similarities And Differences ◽  
Species Study ◽  
Scanning Electron

This study concerns the two species Trachelomonas volzii and T. dubia which were examined for similarities and dissimilarities of their loricae and monads organization. We specifically focused on the key features of both species that were originally used to separate one from the other: annular thickening at the base of collar and dimensions and ornamentation of loricae. Loricae of specimens were examined by light and scanning electron microscopy and the results were compared with the literature data describing these taxa and reported occurrences in the world. The species together with their varieties and forms do not appear to have strong characteristics distinguishing them, rather the variability observed fits natural phenotypic changes. Based on evidence from this study, we recommend combining these two taxa and propose T. volzii as the single taxon. We also examined a set of varieties of original T. volzii since the species contained several varieties that were almost identical in relation to lorica structure and occurrence. As a result of these observations, we propose the following varieties: Trachelomonas volzii var. volzii as a nominative variety, T. volzii var. australis, T. volzii var. sulcata, T. volzii var. inflata, T. volzii var. acidophila. Furthermore, we propose reclassifying some taxa and the new combinations such as: T. dubia var. ornata to T. volzii var. ornata and T. dubia var. colliundulata to T. volzii var. colliundulata. In our opinion, T. dubia fo. acuminata should be included with the species T. hexangulata due to its unique, hexagonal shaped lorica.

Religion, Conflict, and Reconciliation: Ecumenical Initiatives Amidst Human Brokenness and Community Division

2002 ◽  
Vol 19 (1) ◽  
pp. 90-111
Author(s):  
Jerald D. Gort
Keyword(s):  
The Other ◽  
World Council Of Churches ◽  
The World ◽  
World Council ◽  
Human Capacity ◽  
The One ◽  
Role Of Religion

AbstractAfter reflecting on the ambiguous role of religion in terms of violence, Jerald D. Gort in this article outlines, first, the conditions for true reconciliation among peoples (acknowledgement of Christian complicity; no cheap reconciliation; no utopian enthusiasm; no fatalistic view of human capacity); then, second, he outlines the initiatives ofthe World Council of Churches (WCC) toward justice and reconciliation in the world. Such initiatives involve the struggle against injustice on the one hand and a practice of the "wider ecumenism" (dialogue of histories, theologies, spiritualities, and life) on the other.

scholarly journals Some Reflections On How Much Information la There On A Piece Of Film, On How Film Compares With CCD Cameras And What Features A Scanner Would Meed To Digitize TEM Negatives

1998 ◽  
Vol 6 (9) ◽  
pp. 18-21
Author(s):  
Alwyn Eades
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
The Other ◽  
Ccd Cameras ◽  
Know How ◽  
Transmission Electron ◽  
The World ◽  
Digital Methods

The world of electron microscopy is in a period of transition from acquiring images on film to acquiring images digitally, using CCD cameras, for example. It would be useful to knew how much information there is on a piece of film, in order to know how film compares with digital methods and to be able to make good judgements on the optimum moment to change from one technology to the other.This is an attempt to use simple arguments to estimate just how much information there is in an image exposed on film in the transmission electron microscope, the main reason for addressing this issue Is that, while many people are affected by it there seems to be little agreement on the answer.

Mit der Großstadt aus der Armut: Eine neue Theorie der Industrialisierung

2016 ◽  
Vol 57 (1) ◽  
Author(s):  
Franz Mathis
Keyword(s):  
Mass Production ◽  
The Other ◽  
Comparative Perspective ◽  
Economic Welfare ◽  
Urban Agglomerations ◽  
Large Cities ◽  
The World ◽  
Modern Economic ◽  
The One

AbstractThere is no doubt that industrialization was the main cause of modern economic welfare. The reasons for more or less industrialization in various regions of the world have been discussed widely for decades. However, a closer examination reveals that none of the controversial arguments and explanations put forward stand the test of empirical scrutiny. What has previously been ignored is the central role of large cities in provoking industrialization. Given all the other preconditions necessary for industrialization, it was finally the mass markets of large cities that made industrial mass production profitable for potential entrepreneurs. Thus, wherever large cities and urban agglomerations emerged in the world, industrialization followed suit. In a global and comparative perspective, industrialization was not so much a matter of countries but rather a matter of regions dividing the world into highly urbanized, industrialized and more prosperous regions on the one side, and still primarily rural, preindustrial and poorer regions on the other..

scholarly journals El papel de la darse-previo en la fenomenología trascendental

Phainomenon ◽  
2003 ◽  
Vol 7 (1) ◽  
pp. 23-52
Author(s):  
Roberto J. Walton
Keyword(s):  
Transcendental Phenomenology ◽  
The Other ◽  
Second Step ◽  
Natural Attitude ◽  
Cartesian Meditation ◽  
Surface Level ◽  
Other Hand ◽  
The World ◽  
The Way

Abstract This article is an attempt to clarify the role of pregivenness by drawing on the accounts afforded by Eugen Fink both in the Sixth Cartesian Meditation and in the complementary writings to this study. Pregivenness is first situated, along with givenness and non-givenness, within the framework of the system of transcendental phenomenology. As a second step, an examination is undertaken of the dimensions of pregivenness in the natural attitude. Next, nonpregivenness in the transcendental sphere is examined with a focus upon the way in which indeterminateness does not undermine the possibility of a transcendental foreknowledge in the natural attitude, and on the other hand implies the productive character of phenomenological knowledge. After showing how, with the reduction, the pregivennes of the world turns into the pregivenness of world-constitution, the paper addresses the problems raised by the nonpregivenness both of the depth-levels and the reach of transcendental life. By unfolding these lines of inquiry, transcendental phenomenology surmounts the provisional analysis of constitution at the surface level as well as the limitation of transcendental life to the egological sphere. Finally, it is contended that Fink’s account of pregivenness overstates apperceptive or secondary pregivenenness because is does not deal with the pregivenness that precedes acts and is the condition of possibility for primary passivity. Reasons for the omission of impressional or primary pregivenness are suggested.

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