scholarly journals Prompt and Long-Lived Anti-Kasha Emission from Organic Dyes

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6999
Author(s):  
Daniele Malpicci ◽  
Elena Lucenti ◽  
Clelia Giannini ◽  
Alessandra Forni ◽  
Chiara Botta ◽  
...  
Keyword(s):  
Organic Molecules ◽  
Organic Dyes ◽  
Present Review ◽  
The Subject ◽  
Intense Debate

Anti-Kasha behavior has been the subject of intense debate in the last few years, as demonstrated by the high number of papers appearing in the literature on this topic, dealing with both mechanistic and applicative aspects of this phenomenon. Examples of anomalous emitters reported in the last 10 years are collected in the present review, which is focused on strictly anti-Kasha organic molecules displaying radiative deactivation from Sn and/or Tn, with n greater than 1.

scholarly journals Bidirectional intracellular transport: utility and mechanism

2011 ◽  
Vol 39 (5) ◽  
pp. 1126-1130 ◽  
Author(s):  
Amber L. Jolly ◽  
Vladimir I. Gelfand
Keyword(s):  
Intracellular Transport ◽  
Experimental Results ◽  
Present Review ◽  
Bidirectional Transport ◽  
The Subject ◽  
Intense Debate

Bidirectional transport of intracellular cargo along microtubule tracks is the subject of intense debate in the motility field. In the present review, we provide an overview of the models describing the possible mechanisms driving intracellular saltatory transport, taking into account current experimental results that may at first seem contradictory. We examine the phenomenon of saltatory motion, in an attempt to interpret the mechanistic debate in terms of the utility of saltatory motion.

On Recent Proposals Regarding Habitual Drunkards and other Offenders

1896 ◽  
Vol 42 (176) ◽  
pp. 85-102
Author(s):  
A. Wood Renton ◽  
D. Yellowlees
Keyword(s):  
Public Opinion ◽  
Legal Profession ◽  
Present Review ◽  
House Of Lords ◽  
History Of ◽  
The Subject ◽  
Parliamentary History ◽  
Legal Administration ◽  
Historical Sketch

Mr. Wood Renton.Viewed from the Legal Standpoint.Within the last two years no less than three Parliamentary Reports, dealing with the problems presented by the familiar phenomena of inebriety and recidivism, have been published,∗ and a measure † designed, and, to a large extent, calculated to carry the main recommendations embodied in these documents into effect, has been read a second time in the House of Lords, under the pilotage of the then head of English legal administration. These facts show that public opinion has at length been thoroughly aroused as to the necessity for fresh legislation on the subject of habitual drunkenness and crime, and render any preliminary historical sketch of the growth of the movement, which is apparently at last on the eve of attaining its objects, superfluous. If there is any member of the medical or legal profession who is still in ignorance of the process by which the problems in question have been brought to the stage of perfect ripeness for legislative solution, he may be referred with confidence to an admirable summary of the Parliamentary history of legislation affecting inebriates by Mr. Legge, the Secretary to the Inebriates Committee, 1891, which forms the 6th appendix to the minutes of evidence taken by that body, and is reproduced, with some additions and alterations, as Appendix M in the evidence taken by the Scottish Committee of 1894, and to the three Parliamentary Reports which have suggested the present review (see note, sup.).

scholarly journals Female Assertion as an Antidote to Male Dominance: Mother Archetypes in Achebe’s Novels—Things Fall Apart, No Longer at Ease, and A Man of the People

2019 ◽  
Vol 1 (1) ◽  
pp. 13-19
Author(s):  
Jeremiah Mutuku Muneeni
Keyword(s):  
Women Characters ◽  
Male Dominance ◽  
Unit Of Analysis ◽  
Representation Of Women ◽  
Gender Balance ◽  
The People ◽  
Archetypal Criticism ◽  
The Subject ◽  
Things Fall Apart ◽  
Intense Debate

There has been an intense debate with regards to Chinua Achebe’s (mis)representation of women in his creative works, especially his first four novels. Some scholars have argued that Achebe is a patriarchal writer who has relegated women to the periphery. Nevertheless, a few have read subtle nuances of gender balance in his works. This paper is a continuation of this debate. Specifically, it argues that Achebe has created Mother Archetypes in his novels and if the same is not recognized, he will continue to be demonized as a gender insensitive writer. The unit of analysis is three of the five Achebe’s novels namely: Things Fall Apart, No Longer at Ease, and A Man of the People. The paper interrogates the aforementioned novels within the framework of archetypal criticism, with the aim of unearthing and examining Mother Archetypes inherent in them. The paper identifies religion, education, and justice as the spheres of life in which Achebe has created, empowered and elevated Mother Archetypes to be at par with their male counterparts. However, owing to the breadth of the subject, the paper dwells on education. The paper concludes that creation of empowered Mother Archetypes in Achebe’s novels is a symbolic relay in which women characters hand in the symbolic empowerment baton to the next woman in the next novel until the last one where the creation of a woman major character, Beatrice, wins the race against male dominance.

scholarly journals Formación de educadores sociales en Cataluña: reflexiones acerca de los grados de Educación Social ofrecidos por dos universidades de Barcelona (p. 45-64)

2017 ◽  
Author(s):  
Marina Minussi Franco
Keyword(s):  
Professional Training ◽  
Educational Institutions ◽  
Social Education ◽  
Academic Context ◽  
Autonomous Region ◽  
The Social ◽  
Education Careers ◽  
The Subject ◽  
The University ◽  
Intense Debate

Este artigo trata de descrever os processos de formação profissional de educa-dores sociais no âmbito da educação universitária na Comunidade Autônomada Catalunha, na Espanha. Nos últimos anos, devido ao surgimento de novasformas de exclusão social, ao aumento das desigualdades e à crescente globali-zação, verifica-se um aprofundamento do debate sobre a profissão do educadorsocial, suas competências e funções e, ao mesmo tempo, sobre a necessidade derepensar sua formação. Este trabalho faz parte de um projeto mais amplo sobreo assunto e apresenta uma revisão bibliográfica baseada no contexto acadêmicoespanhol, com uma descrição das propostas formativas dos cursos de graduaçãode Educação Social de duas universidades catalãs de importante reconhecimentointernacional: Universidade de Barcelona e Universidade Autônoma de Barce-lona. Os resultados evidenciam a necessidade de uma maior aproximação entreo processo formativo que os educadores recebem no âmbito universitário e asnecessidades reais presentes nas instituições socioeducativas.Palavras-chave: Educação social. Educador social. Formação profissional.Competências.ResumenEste artículo trata de describir dos procesos de formación profesional de educa-dores sociales en el ámbito de la educación universitaria en la Comunidad Autó-noma de Cataluña, España. En los últimos años, a consecuencia del surgimientode nuevas formas de exclusión social, del aumento de las desigualdades y de lacreciente globalización, se verifica una intensificación del debate sobre la profe-sión del educador social, sus competencias, sus funciones y a la vez sobre la ne-cesidad de repensar su formación. Este trabajo forma parte de un proyecto másamplio acerca del tema y presenta una revisión bibliográfica basada en el contex-to académico español, al lado de una descripción de las propuestas formativas delas carreras de Educación Social de dos universidades catalanas de importante re-conocimiento internacional: Universidad de Barcelona y Universidad Autónomade Barcelona. Los resultados evidencian la importancia de la aproximación entreel proceso formativo que los educadores reciben en el ámbito universitario y lasnecesidades reales presentes en las instituciones socioeducativas.Palabras clave: Educación social. Educador social. Formación profesional.Competencias.AbstractThis article looks at the courses offered at two higher-education institutions fortraining social educators in the autonomous region of Catalonia, Spain. In recentyears, due to new forms of social exclusion, the escalation of inequality andincreasing globalization, there is a more intense debate on the profession of thesocial educator, their competences, roles and, at the same time, on the need torethink their training. This work is part of a larger project on the subject and pre-sents a bibliographical review based on the Spanish academic context, along witha description of the training proposals of the Social Education careers withintwo Catalan universities: University of Barcelona and Autonomous University ofBarcelona. The results show the importance of combining the training processoffered to social educators in the university context with the real needs of thesocio-educational institutions where they will practice their profession.Keywords: Social education. Social educator. Professional training. Competencies.

scholarly journals Learning from Slussen: place, idea and process in the transformation of central urban interstices

2017 ◽  
Author(s):  
Alvaro Clua
Keyword(s):  
Public Space ◽  
Urban Form ◽  
Urban Transformation ◽  
Original Structure ◽  
Short Period ◽  
Strategic Location ◽  
Political Management ◽  
The Subject ◽  
Transformation Processes ◽  
Intense Debate

Over the last two decades the Slussen in Stockholm designed by Tage William-Olsson in 1935 has been the subject of an intense debate about how to update it to the contemporary needs. Tabula rasa, reconstruction or renovation? This lively discussion, however, has resulted in a final proposal granted by the expertise of an international firm but controversial for its political management, opposed to several social groups and, above all, highly problematic in terms of urban form and sustainability. The strategic location of this place, the indelible presence of its modern shape in the collective imaginary or the overwhelming force of the new paradigms of public space, have ended up provoking a range of more than twenty-five proposals in a short period of time. But while today this process seems to be settled and the demolition works of the original structure has already started, it would be still useful to draw some conclusions relevant to other similar interstitial sites in European compact cities where architecture, infrastructure, public space and landscape meet in such an intense way. Thus, this paper summarizes some of the last arguments of the on-going doctoral thesis about the recent evolution of Slussen according to four different outstanding topics: the form of place and history as an undeniable premise; the strength of tactics versus the power of the image in the process; the importance of time in the sequence of urban decision-making and, finally, the weight of urban culture as a key argument in contemporary urban transformation processes.

Timing of Wound Excision

2020 ◽  
pp. 11-14
Keyword(s):  
Surgical Site Infections ◽  
Current Data ◽  
Human Studies ◽  
Bacterial Burden ◽  
Wound Debridement ◽  
The Past ◽  
Severity Of Injury ◽  
Wound Excision ◽  
The Subject ◽  
Intense Debate

The aim of wound excision is to remove contaminating debris and all devitalised tissue. This should reduce both the bacterial burden and available substrate for microbial colonisation, resulting in fewer deep surgical site infections. In turn, this will lead to improved patient outcomes. The timing of wound excision has been the subject of intense debate. In the past, guidelines have favoured wound excision within 6 hours based on historical animal and human studies. Current data suggest that timing of wound debridement should be determined by the degree of contamination and severity of injury.

scholarly journals Zionism, Colonialism, and Post-colonial Migrations: Moroccan Jews’ Memories of Displacement

2019 ◽  
Vol 6 (3-4) ◽  
pp. 338-351
Author(s):  
Yolande Cohen
Keyword(s):  
Religious Communities ◽  
Cultural Education ◽  
Post Colonial ◽  
The Gaze ◽  
The People ◽  
The Subject ◽  
Complex Relationships ◽  
The Moment ◽  
Push And Pull ◽  
Intense Debate

The emigration of Jews from Morocco to Israel, in particular, is the subject of intense debate among historians, signaling the difficulty of telling a unified story of this moment. I want to contribute to this debate by showing that the combining and often opposing forces of Colonialism and Zionism were the main factors that triggered these migrations, in a period of rising Moroccan nationalism. But those forces were also seen as opportunities by some migrants to seize the moment to better their fate and realize their dreams. If we cannot assess every migrant story, I want here to suggest through my family’s experience and memory and other collected oral histories, how we could intertwine those memories to a larger narrative to shed more light on this history. The push and pull forces that led to Moroccan Jewry’s migrations and post-colonial circulations between the 1940s and 1960s were the result of a reordering of the complex relationships between the different ethnic and religious communities well before the migration took place. The departures of the people interviewed for this study are inscribed in both the collective and family dynamics, but were organized in secret, away from the gaze of the others, particularly that of non-Jewish neighbors. Their belonging to a sector of the colonial world, while still prevalent in their narratives, is blurred by another aspect of post-colonial life in Morocco, that is the cultural/education nexus. Depending on where one has been educated and socialized, the combined effects of Colonialism and Zionism strongly impacted the time of their departures and the places they went to.

scholarly journals Polar molecules catalyze CO insertion into metal-alkyl bonds through the displacement of an agostic C-H bond

2019 ◽  
Vol 116 (9) ◽  
pp. 3419-3424
Author(s):  
Tian Zhou ◽  
Santanu Malakar ◽  
Steven L. Webb ◽  
Karsten Krogh-Jespersen ◽  
Alan S. Goldman
Keyword(s):  
Transition Metal Complexes ◽  
Density Functional ◽  
Organic Molecules ◽  
Polar Molecules ◽  
Functional Theory ◽  
Bond Forming ◽  
Co Insertion ◽  
The Subject ◽  
Kinetics Of

The insertion of CO into metal-alkyl bonds is the key C-C bond-forming step in many of the most important organic reactions catalyzed by transition metal complexes. Polar organic molecules (e.g., tetrahydrofuran) have long been known to promote CO insertion reactions, but the mechanism of their action has been the subject of unresolved speculation for over five decades. Comprehensive computational studies [density functional theory (DFT)] on the prototypical system Mn(CO)5(arylmethyl) reveal that the polar molecules do not promote the actual alkyl migration step. Instead, CO insertion (i.e. alkyl migration) occurs rapidly and reversibly to give an acyl complex with a sigma-bound (agostic) C-H bond that is not easily displaced by typical ligands (e.g. phosphines or CO). The agostic C-H bond is displaced much more readily, however, by the polar promoter molecules, even though such species bind only weakly to the metal center and are themselves then easily displaced; the facile kinetics of this process are attributable to a hydrogen bonding-like interaction between the agostic C-H bond and the polar promoter. The role of the promoter is to thereby catalyze isomerization of the agostic product of CO insertion to give an η2-C,O-bound acyl product that is more easily trapped than the agostic species. This ability of such promoters to displace a strongly sigma-bound C-H bond and to subsequently undergo facile displacement themselves is without reported precedent, and could have implications for catalytic reactions beyond carbonylation.

Schweigger’s (1812) chelonian types from the extinct eighteenth century Portuguese “Royal cabinet of natural history of Ajuda”: some contributions for their identification and nomenclatural implications

Zootaxa ◽  
2012 ◽  
Vol 3395 (1) ◽  
pp. 18 ◽  
Author(s):  
LUIS M. P. CERÍACO ◽  
ROGER BOUR
Keyword(s):  
Eighteenth Century ◽  
Natural History ◽  
Zoological Nomenclature ◽  
Historical Sources ◽  
History Of ◽  
The Subject ◽  
Intense Debate

The work Prodromus Monographiae Cheloniorum, published by Schweigger in 1812, has recently been the subject ofseveral studies. One result of these studies—the rediscovery of the Testudo gigantea Schweigger, 1812holotype—triggered an intense debate in The Bulletin of Zoological Nomenclature, where, among other issues in dispute,the identity and nature of the specimen indicated as the holotype for the species is put in question. Using historical sources,mostly unpublished, and analysis and comparison of taxidermic characteristics of the specimen with other specimens ofthe same nature, we can clearly trace its origin to the extinct Royal Cabinet of Natural History of Ajuda in Lisbon, fromthe “philosophical journey” of Alexandre Rodrigues Ferreira to the specimens transported to Paris by Geoffroy Saint-Hilaire in 1808, thus helping dispel any doubts regarding the identity and nature of what is being identified as the Testudogigantea holotype, along with other chelonian specimens. This information is of great importance in the current taxonomicdebate as well as in recognizing the historic importance of the Royal Cabinet of Natural History of Ajuda and Geoffroy Saint-Hilaire’s 1808 mission to Lisbon.

scholarly journals Resolving the Issue of Artefact Deposition at Star Carr

2017 ◽  
Vol 83 ◽  
pp. 23-42 ◽  
Author(s):  
Barry Taylor ◽  
Ben Elliott ◽  
Chantal Conneller ◽  
Nicky Milner ◽  
Alex Bayliss ◽  
...  
Keyword(s):  
Recent Work ◽  
Environmental Context ◽  
Refuse Dump ◽  
Peat Deposits ◽  
The Subject ◽  
Iconic Status ◽  
Source Of Information ◽  
Intense Debate

Since its publication in 1954 Star Carr has held an iconic status in British Mesolithic archaeology. The original excavations at the site recorded a large assemblage of bone and antler tools from a sequence of peat deposits at the edge of the Lake Flixton. Over 60 years later this remains the largest assemblage of bone and antler artefacts of its date in Britain and has been an invaluable source of information for life in the early Mesolithic. However, the interpretation of this material has been the subject of intense debate, and the assemblage has been variously described as the remains of an in situ settlement, a refuse dump, and the result of culturally prescribed acts of deposition. Fundamentally, these very different ideas of the nature of the site depend on differing interpretations of the environmental context into which the majority of the organic artefacts were deposited. This paper presents the results of recent work at Star Carr that helps to resolve the debate surrounding both the context of the assemblage and the motivations that lay behind its deposition.

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