scholarly journals A universal graphitic interlayered centroid intercalation theory for intercalation chemistry

2021 ◽  
Author(s):  
Kemeng Ji ◽  
Kailong Hu ◽  
Yuhao Shen ◽  
Yoshikazu Ito ◽  
Cheng Liu ◽  
...  
Keyword(s):  
Metal Ion ◽  
Nitrogen Doping ◽  
Model Case ◽  
Storage Mechanism ◽  
Intercalation Reaction ◽  
Crystal Texture ◽  
Carbon Foams ◽  
History Of ◽  
Electrochemical Storage ◽  
New Research

Abstract Neither of the two widely used staging models in the long history of intercalation chemistry, namely the classical Rüdorff-Hofmann model proposed in 1938 and the pleated-layer domain-modified one in 1969, can explain the intercalation reaction phenomena and mechanism logically. Taking the landmark potassium-intercalation reaction of graphite as a model case and two advanced monolithic graphitic/graphenic carbon foams as model electrodes, here we have revealed that the electrochemical storage of potassium in graphitic/graphenic carbon (as that of lithium) obeys a simple interlayered centroid intercalation (ICIC) rule to achieve the staged potassium intercalation into each graphitic interlayer: C → KC72 → KC24 → KC8. Moreover, judging from the typical potassium-storage behaviors and crystal texture of graphitic electrodes, nitrogen doping and pre-embedded K atoms would enable incoming K+ ions to perform fast pseudocapacitive diffusion in graphitic gallery. This study not only makes clear the basic K-storage mechanism and phenomena in graphitic carbon, but also establishes a more reasonable ICIC model for intercalation chemistry, and thus may help open a new research era for this field as well as graphite-based metal-ion batteries.

Freeze-etch TEM of aqueous polymer gel network morphology

1986 ◽  
Vol 44 ◽  
pp. 796-797
Author(s):  
J. A. N. Zasadzinski ◽  
R. K. Prud'homme
Keyword(s):  
Metal Ion ◽  
Polymer Network ◽  
Polymer Gels ◽  
Polymer Gel ◽  
Deformation History ◽  
Crosslinked Polymer ◽  
Aqueous Polymer ◽  
History Of ◽  
Gel Network ◽  
Network Morphology

The rheological and mechanical properties of crosslinked polymer gels arise from the structure of the gel network. In turn, the structure of the gel network results from: thermodynamically determined interactions between the polymer chain segments, the interactions of the crosslinking metal ion with the polymer, and the deformation history of the network. Interpretations of mechanical and rheological measurements on polymer gels invariably begin with a conceptual model of,the microstructure of the gel network derived from polymer kinetic theory. In the present work, we use freeze-etch replication TEM to image the polymer network morphology of titanium crosslinked hydroxypropyl guars in an attempt to directly relate macroscopic phenomena with network structure.

FBI and Religion

2017 ◽  
Keyword(s):  
Religious Orientation ◽  
Religious Communities ◽  
Academic Scholarship ◽  
History Of ◽  
Interdisciplinary Assessment ◽  
Civic Religion ◽  
New Research ◽  
The Relationship ◽  
The Way

This volume is an interdisciplinary assessment of the relationship between religion and the FBI. We recount the history of the FBI’s engagement with multiple religious communities and with aspects of public or “civic” religion such as morality and respectability. The book presents new research to explain roughly the history of the FBI’s interaction with religion over approximately one century, from the pre-Hoover period to the post-9/11 era. Along the way, the book explores vexed issues that go beyond the particulars of the FBI’s history—the juxtaposition of “religion” and “cult,” the ways in which race can shape the public’s perceptions of religion (and vica versa), the challenges of mediating between a religious orientation and a secular one, and the role and limits of academic scholarship as a way of addressing the differing worldviews of the FBI and some of the religious communities it encounters.

Clause Structure and Word Order in the History of German

2018 ◽  
Keyword(s):  
Word Order ◽  
Left Periphery ◽  
Structural Factors ◽  
Clause Structure ◽  
Verb Second ◽  
Verb Forms ◽  
History Of ◽  
New Research ◽  
The Right ◽  
Theoretical Analyses

Over roughly the last decade, there has been a notable rise in new research on historical German syntax in a generative perspective. This volume presents a state-of-the-art survey of this thriving new line of research by leading scholars in the field, combining it with new insights into the syntax of historical German. It is the first comprehensive and concise generative historical syntax of German covering numerous central aspects of clause structure and word order, tracing them throughout various historical stages. Each chapter combines a solid empirical basis and valid descriptive generalizations with reference also to the more traditional topological model of the German clause with a detailed discussion of theoretical analyses couched in the generative framework. The volume is divided into three parts according to the main parts of the clause: the left periphery dealing with verbal placement and the filling of the prefield (verb second, verb first, verb third orders) as well as adverbial connectives; the middle field including discussion of pronominal syntax, order of full NPs and the history of negation; and the right periphery with chapters on basic word order (OV/VO), prosodic and information-structural factors, and the verbal complex including the development of periphrastic verb forms and the phenomena of IPP (infinitivus pro participio) and ACI (accusativus cum infinitivo). This book thus provides a convenient overview of current research on the major issues concerning historical German clause structure both for scholars interested in more traditional description and for those interested in formal accounts of diachronic syntax.

scholarly journals Ernst von Leyden (1832–1910): a pioneer in making oncology a respected medical discipline

2021 ◽  
Author(s):  
Peter Voswinckel ◽  
Nils Hansson
Keyword(s):  
International Association ◽  
German Society ◽  
Scientific Discipline ◽  
Strong Impact ◽  
Medical Discipline ◽  
History Of ◽  
National Socialists ◽  
New Research ◽  
German Physician

Abstract Purpose This article presents new research on the role of the renowned German physician Ernst von Leyden (1832–1910) in the emergence of oncology as a scientific discipline. Methods The article draws on archival sources from the archive of the German Society of Haematology and primary and secondary literature. Results Leyden initiated two important events in the early history of oncology: the first international cancer conference, which took place in Heidelberg, Germany, in 1906, and the founding of the first international association for cancer research (forerunner of today's UICC) in Berlin in 1908. Unfortunately, these facts are not mentioned in the most recent accounts. Both had a strong impact on the professionalization of oncology as a discipline in its own right. Conclusion Although not of Jewish origin, von Leyden was considered by the National Socialists to be “Jewish tainted”, which had a lasting effect on his perception at home and abroad.

Continuities and Discontinuities: New Research on the History of German Economic Institutions

2005 ◽  
Vol 14 (4) ◽  
pp. 591-602
Author(s):  
CHRISTOPHER KOPPER
Keyword(s):  
Economic Institutions ◽  
Cambridge University ◽  
Oxford University ◽  
History Of ◽  
New Research ◽  
Oxford University Press

Werner Abelshauser, Jan-Otmar Hesse and Werner Plumpe, eds., Wirtschaftsordnung, Staat und Unternehmen. Neue Forschungen zur Wirtschaftsgeschichte des Nationalsozialismus (Essen: Klartext Verlag, 2003), 392 pp., €29.80 (pb), ISBN 3898612597.Conan Fischer, The Ruhr Crisis 1923–1924 (Oxford: Oxford University Press, 2003), £55.00 (hb), ISBN 0198208006.Harold James, The Deutsche Bank and the Economic War against the Jews (Cambridge: Cambridge University Press, 2001), 268 pp., £27.50 (hb), ISBN 0521803292.Reinhard Spree, ed.,Geschichte der deutschen Wirtschaft im 20.Jahrhundert (Munich: C. H. Beck, 2001), 232 pp., €12,50 (pb), ISBN 3406475698.Hans Erich Volkmann, Ökonomie und Expansion. Grundzüge der NS-Wirtschaftspolitik (Munich: R. Oldenbourg Verlag, 2003), €39.80 (hb), ISBN 3486567144

Women in Gabon

2021 ◽  
Author(s):  
Claire H. Griffiths
Keyword(s):  
Central Africa ◽  
Early Period ◽  
Sub Saharan Africa ◽  
African Women ◽  
Female Population ◽  
History Of ◽  
Sub Saharan ◽  
Tropical Woods ◽  
New Research ◽  
Export Revenue

Gabon, a small oil-rich country straddling the equator on the west coast of Africa, is the wealthiest of France’s former colonies. An early period of colonization in the 19th century resulted in disease, famine, and economic failure. The creation of French Equatorial Africa in 1910 marked the beginning of the sustained lucrative exploitation of Gabon’s natural resources. Gabon began off-shore oil production while still a colony of France. Uranium was also discovered in the last decade of the French Equatorial African empire. Coupled with rich reserves in tropical woods, Gabon has achieved, since independence in 1960, a higher level of export revenue per capita of population than any other country in sub-Saharan Africa in the postcolonial era. However, significant inequality has characterized access to wealth through paid employment throughout the recorded history of monetized labor. While fortunes have been amassed by a minute proportion of the female population of Gabon associated with the ruling regime, and a professional female middle-class has emerged, inequalities of opportunity and reward continue to mark women’s experience of life in this little-known country of West Central Africa. The key challenge facing scholars researching the history of women in Gabon remains the relative lack of historical resources. While significant strides have been made over the past decade, research on women’s history in Francophone Africa published in English or French remains embryonic. French research on African women began to make a mark in the last decade of colonization, notably with the work of Denise Paulme, but then remained a neglected area for decades. The publication in 1994 of Les Africaines by French historian Catherine Coquery-Vidrovitch was hailed at the time as a pioneering work in French historiography. But even this new research contained no analysis of and only a passing reference to women in Gabon.

Field emission properties of nitrogen-doped diamond-like carbon films deposited by direct metal ion beam deposition

2001 ◽  
Vol 697 ◽  
Author(s):  
Kie Moon Song ◽  
Namwoong Paik ◽  
Steven Kim ◽  
Daeil Kim ◽  
Seongjin Kim ◽  
...  
Keyword(s):  
Field Emission ◽  
Photoelectron Spectroscopy ◽  
Metal Ion ◽  
Nitrogen Doping ◽  
Ion Beam ◽  
Diamond Like Carbon ◽  
Emission Data ◽  
Nitrogen Doped ◽  
Ion Beam Deposition ◽  
Beam Deposition

AbstractNitrogen-doped diamond-like carbon (DLC) films were deposited on a silicon substrate by direct metal ion beam deposition (DMIBD). Partial pressures of nitrogen gas were changed to get different compositions of nitrogen in the DLC films. The composition and surface morphology of the films were examined using X-ray photoelectron spectroscopy (XPS) and atomic force microscope (AFM). Effect of nitrogen doping on field emission property was studied. The field emission data indicated that the nitrogen doping lowered the turn-on field and increase the current density. It was believed that doping of nitrogen into the DLC film plays an important role in enhancement of the field emission. This enhancement of field emission could be explained by the improvement of electron transport through nitrogen-dope DLC layer.

Research Approaches in Computer-Supported Collaborative Learning

2013 ◽  
Vol 9 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Tharrenos Bratitsis ◽  
Stavros Demetriadis
Keyword(s):  
Collaborative Learning ◽  
Research Field ◽  
Computer Supported Collaborative Learning ◽  
Research Issues ◽  
Online Distance Education ◽  
Theoretical Perspectives ◽  
History Of ◽  
How People Learn ◽  
Online Distance ◽  
New Research

Computer Supported Collaborative Learning (CSCL) is concerned with how people learn when working and interacting in groups with the assistance of ICTs. The field involves collaboration, computer mediation, online – distance education which raises interesting theoretical considerations regarding the actual studying of learning within CSCL settings. Being a rather interdisciplinary research field in nature, it has a long history of controversy about its theory, methods, and definition. In this editorial, through a quick review of the literature the diversity of issues examined under the CSCL research field becomes obvious. Moreover, an attempt to categorize these research issues is made. In this vein, the four interesting contributions of this Special Issue, regarding theoretical perspectives and issues of research of the field, are introduced. They comply with the distinguished categories, but they open new research borders as well.

scholarly journals O desenho digital e as paisagens patrimoniais. Convento da Madre Deus de Monchique, no Porto

CEM ◽  
2020 ◽  
pp. 57-74
Author(s):  
Tiago Trindade Cruz
Keyword(s):  
Digital Technology ◽  
Urban Research ◽  
Urban Structures ◽  
Built Heritage ◽  
History Of ◽  
History Of Architecture ◽  
New Research ◽  
The City ◽  
Historical Periods

This article is part of a broader reflection on the digital drawing and new research metho‑ dologies in the History of Architecture. Aiming to reflect on the concept of Heritage Landscape, it starts from the old monastic structure of Monchique, in the city of Porto, as an experimental labora‑ tory for architectural and urban research. It is known that digital technology makes it possible to reconstruct elements from other eras, whose time has transformed or disappeared. In this context, and using digital drawing, the recognition of the built heritage and urban structures is sought through a synchronic and diachronic interpretation, attentive to the different historical periods and their specificities.

scholarly journals Business Enterprise and Globalization: Towards a Transnational Business History

2017 ◽  
Vol 91 (3) ◽  
pp. 511-535 ◽  
Author(s):  
Marten Boon
Keyword(s):  
Transnational History ◽  
Business History ◽  
Business Enterprise ◽  
Key Concepts ◽  
History Of ◽  
Research Agendas ◽  
New Research

Transnational history emerged strongly as globalization intensified in the 1990s, questioning national historiographies and creating new research agendas. Business history has not been part of this, but recent calls within the field to engage more visibly and authoritatively with debates on the history of globalization warrant a closer inspection of transnational history. The article draws on key concepts from transnational history and discusses their application in the work of, among others, Sven Beckert, Jessica Lepler, Stephanie Decker, Ray Stokes, and Michael Miller. The article argues that transnational history provides opportunities to increase business history's engagement with the history of globalization.

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