1,969 research outputs found
STUDY OF THE CYGNUS REGION WITH FERMI AND HAWC
The Cygnus Cocoon is an extended source of high-energy gamma-ray emission in the Cygnus region. The gamma-ray emission has been attributed to a volume 50pc in diameter of freshly-accelerated particles near the Supernova Remnant Îł Cygni which is located 1.4kpc from the solar system [Ackermann et al., 2011], [Tibaldo et al., 2013]. Since its discovery in 2011, Fermi LAT has improved their event reconstruction to allow analysis at higher energies, and recorded six additional years of data. An analysis was performed on the entire dataset to reproduce the previous results, then expand on them with higher energies and larger time spans of data. No evidence of temporal variability was found for the Cocoon. It was found that for the energy range of 1-870 GeV a logparabola spectrum is preferred over a powerlaw spectrum. Analysis is then done comparing the Cocoon spectrum measured using LAT data with a HAWC source [Hona et al., 2017] that is thought to be the Cocoon. It was found that the LAT powerlaw spectrum connects with the HAWC spectrum at 1 TeV, while the LAT powerlaw spectrum is an order of magnitude lower then the HAWC source. This means that for the combined analysis the powerlaw spectrum is prefered over the logparabola, if the HAWC source is the Cocoon
Claimed Co-ethnics and Kin-State Citizenship in Southeastern Europe
The paper introduces the often neglected concept of 'claimed co-ethnics' in the analysis of citizenship policies. It argues that this is an interstitial category that further complicates the triadic nexus between national minorities, nationalising states and kin-states. The 'claimed co-ethnics' are defined as people who are recognised by the citizenship (or ethnizenship) conferring state as belonging to its main ethnic group, although they themselves do not embrace that definition. In addition to bringing the issue of claimed co-ethnics into focus, the paper elucidates how citizenship policies can affect groups that challenge the exact fit between ethnicity and nation, showing how national governments through particular citizenship policies and categorisation practices engage in the construction of these groups. The paper shows that the triadic nexus framework, which has had a strong influence on citizenship and minorities scholarship, needs to be revised to include unidirectional relations between the elements of the triadic nexus. The paper is based on the comparison between the cases of ethnic Vlachs (in the context of Albania and Greece) and Bunjevci (in the context of Serbia and Croatia).European Commission - Seventh Framework Programme (FP7
Chemical characterization and bioactivities of sericin extracted from silkworm cocoons from two regions of Portuga
Along the years, sericin has been undervalued and discarded as waste from the textile silk
industry. However, recent studies have shown that sericin has great potential for
biomedical applications. The potential for medicinal applications depends on its
physicochemical properties and molecular heterogeneity. In addition, the characteristics
of sericin are influenced by its extraction method, its origin and the variety of cocoon.
This work aimed to characterize the biochemical and bioactivities of sericin from
Bragança and Castelo Branco. Sericin was extracted using the autoclave method, and its
physicochemical properties were then characterized by analyzing its amino acid content
by HPLC. In addition, its potential for antioxidant by TBARS and CAA assays, anti-
inflammatory by NO inhibition, antimicrobial by microdilution method, anti-proliferative
by SBR assay, and anticoagulant activities by APTT method was evaluated. In its pure
state, sericin did not have a high content of free amino acids, with tyrosine being identified
as the most abundant. On the other hand, when hydrolyzed sericin showed a higher
content of amino acids and serine was the most abundant. In terms of bioactivities, the
sericin tested did not show antioxidant or anti-inflammatory potential in the tests carried
out. Despite this, it showed anti-proliferative activity in contact with human tumor cell
lines and in non-tumor cell lines at a minimum concentration of 0.52 and 0.32 mg /mL,
respectively. As far as antimicrobial activity is concerned, sericin proved capable of
inhibiting the growth of the bacteria and fungi tested at concentrations between 5 and 10
mg/mL. Finally, sericin was also shown to be able to prolong the coagulation time in adult
mice plasma, presenting anticoagulant potential. The sericin from Bragança and Castelo
Branco, collected in 2019, did not differ greatly, differences in amino acid composition
were identified. In addition, the sericin collected in Bragança in 2021 and 2022, S3 and
S4, respectively, showed differences compared to the other samples and showed the best
antiproliferative, antibacterial and anticoagulant potential. Additionally, there are also
differences between extracted and commercial samples.Ao longo do tempo, a sericina foi desvalorizada e descartada como resĂduo da indĂșstria
tĂȘxtil da seda, no entanto, estudos recentes comprovam o grande potencial da sericina em
aplicaçÔes biomédicas. O potencial para aplicaçÔes medicinais depende das suas
propriedades fĂsico-quĂmicas e heterogeneidade molecular. AlĂ©m disso, as caracterĂsticas
da sericina são influenciadas pelo seu método de extração, a sua origem e a variedade do
casulo. Este trabalho teve como objetivo a caracterização bioquĂmica e bioactiva da
sericina com origem em Bragança e Castelo Branco. A sericina foi extraĂda atravĂ©s do
mĂ©todo da autoclave, e, posteriormente as propriedades fĂsico-quĂmicas foram
caracterizadas através da anålise do teor de aminoåcidos por HPLC. Além disso, foi
avaliado o seu potencial para as atividades antioxidante pelos ensaios TBARS e CAA,
anti-inflamatória pela inibição de NO, antimicrobiana pelo método da microdiluição, anti
proliferativa pelo método SRB, e, anticoagulante pelo método APTT. No seu estado puro,
a sericina nĂŁo apresentou um grande teor de aminoĂĄcidos livres, tendo sido identificado
como mais abundante a tirosina. Por outro lado, quando hidrolisada, a sericina apresentou
um teor mais elevado, sendo a serina a mais abundante. Relativamente Ă s bioatividades,
a sericina testada nĂŁo apresentou potencial antioxidante nem anti-inflamatĂłria nos ensaios
realizados. Apesar disso, apresentou atividade anti proliferativa em contacto com linhas
celulares tumorais humanas e em linhas celulares não tumorais a uma concentração
mĂnima de 0.52 e 0.32 mg /mL, respectivamente. Relativamente Ă atividade
antimicrobiana, a sericina mostrou ser capaz de inibir o crescimento das bactérias e
fungos testados para concentraçÔes compreendidas entre 5 e 10 mg/ mL. A sericina
também mostrou ser capaz de prolongar o tempo de coagulação em plasma de ratos
adultos, apresentando potencial anticoagulante. Além disso, as sericinas de Bragança e
Castelo Branco, de 2019, não diferiram muito, contudo foram identificadas diferenças na
sua composição de aminoåcidos. Por outro lado, a sericina recolhida em Bragança em
2021 e 2022, S3 e S4, respetivamente, apresentou diferenças em relação às outras
amostras e apresentou o melhor potencial antiproliferativo, antibacteriano e
anticoagulante. Adicionalmente, existem tambĂ©m diferenças entre as amostras extraĂdas
e as comerciais.
Palavras-chaveThis work was founded by the project Sericina: um resĂduo da indĂșstria da Seda com
potencial biomédico (PTDC/BTA-BTA/0696/2020)
Noël Coward and the Sitwells: enmity, celebrity, popularity
In 1923, the year of the first public performance of Edith Sitwell and William Walton's Façade, NoĂ«l Coward satirized the Sitwell siblings in his sketch âThe Swiss Family Whittlebot.â The result was an enduring feud between Coward and the Sitwells that shaped their celebrity personae and inflected responses to their work in the periodical press. They confronted each other across a class divide, and also across the perceived barrier between difficult modernism and accessible popular entertainment. Yet, in spite of these oppositional stances, certain convergences in their styles of writing and performance suggest a possible appeal to a shared audience. The interconnectedness of Coward's work with Edith Sitwell's, in particular, can be discerned on the level of literary style, influences, and parodic strategies
Gendered Language and the Science of Colonial Silk
This article uses pronominal resilience to suggest how we can identify women's contributions to the colonial silk industry. By comparing different editions of silkworm treatises, all of which were published between 1650-1655 and circulated within the Hartlib Circle's circum-Atlantic network of readers (Bermuda, Germany, England, Ireland, Virginia), I find a pattern in the gendered language of the texts. Books that describe worms grown by women use feminine pronouns (she/her) to classify worms throughout the lifecycle, while books that describe worms grown by men begin with masculine pronouns (he/his) and become feminine (she/her) when the worms become reproductive in the third stage of the lifecycle
Fit for purpose? Fitting ontological security studies 'into' the discipline of International Relations : towards a vernacular turn
The performance of International Relations (IR) scholarship â as in all scholarship â acts to close and police the boundaries of the discipline in ways that reflect powerâknowledge relations. This has led to the development of two strands of work in ontological security studies in IR, which divide on questions of ontological choice and the nature of the deployment of the concept of dread. Neither strand is intellectually superior to the other and both are internally heterogeneous. That there are two strands, however, is the product of the performance of IR scholarship, and the two strands themselves perform distinct roles. One allows ontological security studies to engage with the âmainstreamâ in IR; the other allows âinternationalâ elements of ontological security to engage with the social sciences more generally. Ironically, both can be read as symptoms of the disciplineâs issues with its own ontological (in)security. We reflect on these intellectual dynamics and their implications and prompt a new departure by connecting ontological security studies in IR with the emerging interdisciplinary fields of the âvernacularâ and âeverydayâ via the mutual interest in biographical narratives of the self and the work that they do politically
ReMobile home: an exploration of mobile homes in rural North Carolina
Mobile homes are a ubiquitous site in the Southern rural landscape. In rural and suburban regions across the United States, mobile homes are often the best, or only, affordable housing option for low-income and working-class individuals and families. In the U.S., 20 million people live in manufactured housing, or about 6.5 percent of the total population. In North Carolina, this figure is much higher: 14 percent of residents live in manufactured homes (U.S. Census Bureau, 2015). The prevalence of manufactured housing reflects the financial and logistical challenges of site-built construction in rural areas that lack infrastructure. The high number of mobile homes also demonstrates the lack of other affordable housing options, like multi-family residences that are common in urban areas. Approximately 12 percent of all mobile homes in the U.S. are vacant or abandoned. While no data is kept specifically for North Carolina, if this percentage holds true, that would equate to approximately 75,000 vacant or abandoned mobile homes across the state. The cost of removing and disposing of an abandoned unit can be upwards of 750 million to remove all the existing abandoned or vacant mobile homes. ReMobile Home uses a mixed method approach to examine whether rehabilitating older, vacant, or abandoned mobile homes is a viable way to increase affordable housing options in rural North Carolina. This thesis consists of a proposed redesign of a 1974 mobile home as well a Photovoice project. Photovoice uses photographs to capture aspects of an individual's daily experience and share them with others. Individuals take their own pictures about a subject or question, and then describe their photo in either written or oral form. Participants in my project are asked the question âWhat makes your mobile home feel like home?â This method allows mobile home dwellers to be the experts and helps dispel some of the stigma and stereotypes about mobile homes and who lives in them. The thesis examines the complex problems and issues surrounding rehabilitating older mobile homes and seeks a better understanding of what it means to call a mobile home, âhome.
Two Thumbs Up: Using Popular Films in Introductory Aging Courses
Good teaching requires thoughtful planning and creative thinking, especially when trying to engage students in material that is unfamiliar to them or encumbered by stereotypes, like aging. Classic and contemporary media can provide unique teaching opportunities in gerontology classrooms. Popular films can have a powerful influence over viewersâ attitudes and perceptions, and spur in-depth discussions of aging-related topics common to introductory aging courses (e.g., ageism, abuse, inequality, caregiving, healthy aging, and intimate relationships). Additionally, films appeal to multiple learning styles, engaging a variety of learners. This article examines the value of using films in introductory aging courses, offers strategies for incorporating films in the gerontology classroom, suggests sample activities and assignments that pair popular films with aging course topics, identifies challenges of using film in various classrooms settings, and provides a detailed typology of films on each of the following aging topics: ageism and stereotypes, cognitive impairment, death and dying, diversity, family relationships, health and wellness, sexuality and intimacy, and work and retirement
"Caterpillars and Butterfly" The Process of Self-Realization and Unity in Kendrick Lamar's To Pimp A Butterfly
Etter sitt kommersielle gjennombrudd med good kid, m.A.A.d. city i 2012, ble Kendrick Lamar regnet som den store frelseren av hip hop. Det var med andre ord store forventninger da han utga oppfĂžlgeren To Pimp a Butterfly i 2015. Lamar levde opp til forventningene med et album som ble hyllet av bĂ„de fans, kollegaer og kritikere. Resepsjonen var positiv bĂ„de i lys av hans musikalske evner, men like mye for Ă„ lage musikk som gir introspektive skildringer av hvordan det er Ă„ vĂŠre afro-amerikaner i nĂ„tidens USA. Han har blitt studert i mange forskjellige fakultet i Akademia og konseptalbumet er komplekst nok til Ă„ engasjere mange forskjellige fagfelt. Til tross for at det er et konseptalbum, er det fĂ„ som ser pĂ„ albumet i sin helhet. Denne oppgaven tar denne retningen, og ser pĂ„ hvordan To Pimp a Butterfly viser en mann i en selv-realiserende prosess. Etter Ă„ ha introdusert min problemstilling, albumet og dets resepsjon, ser jeg i andre kapittel pĂ„ hvordan denne prosessen blir presentert i to dikt som Lamar leser hĂžyt i slutten av albumet. Jeg viser hvordan det ene diktet, som jeg har kalt «spoken-word poem», strukturerer albumet ved Ă„ gradvis tilfĂžye nye linjer som skildrer Lamar sin personlige utvikling. Det andre diktet, «Poem of the Caterpillar and the Butterflyâ, skildrer det han har lĂŠrt om samfunnet han vokste opp i. Dette diktet beskriver allegorisk den selv-realiserende prosessen. Videre utforsker jeg sjangrene âkonseptalbumâ og âsang syklusâ og hvordan albumet svarer pĂ„ disse. Jeg sammenligner ogsĂ„ Lamar sin fortelling med den tradisjonelle sjangeren for personlig utvikling, bildungsromanen. Videre viser jeg hvordan de to diktene konkluderer med temaet âsamholdâ. Sangen «Alright» er kjent for sine forenende egenskaper. Derfor velger jeg Ă„ analysere musikkvideoen til denne sangen gjennom multimodal teori i kapittel tre. Her viser jeg hvordan musikkvideoen gjenskaper metaforene fra diktene gjennom det visuelle. Ved Ă„ se pĂ„ samspillet mellom lyd, tekst og bilde utforsker jeg hvordan videoen skaper ny mening og dybde. Samspillet gjĂžr at videoen bĂ„de oppsummerer og bygger videre pĂ„ Lamar sin store suksess, To Pimp a Butterfly.Engelsk mastergradsoppgaveMAHF-LĂFRMAHF-ENGENG35
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