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Accidental Peccei–Quinn symmetry from discrete flavour symmetry and Pati–Salam
Bjö,rkeroth, Fredrik,Chun, Eung Jin,King, Stephen F. North-Holland Pub. Co 2018 Physics letters. Section B Vol.777 No.-
<P><B>Abstract</B></P> <P>We show how an accidental U ( 1 ) Peccei–Quinn (PQ) symmetry can arise from a discrete <SUB> A 4 </SUB> family symmetry combined with a discrete flavour symmetry <SUB> Z 3 </SUB> × Z 5 2 , in a realistic Pati–Salam unified theory of flavour. Imposing only these discrete flavour symmetries, the axion solution to the strong <I>CP</I> problem is protected from PQ-breaking operators to the required degree. A QCD axion arises from a linear combination of <SUB> A 4 </SUB> triplet flavons, which are also responsible for fermion flavour structures due to their vacuum alignments. We find that the requirement of an accidental PQ symmetry arising from a discrete flavour symmetry constrains the form of the Yukawa matrices, providing a link between flavour and the strong <I>CP</I> problem. Our model predicts specific flavour-violating couplings of the flavourful axion and thus puts a strong limit on the axion scale from kaon decays.</P>
A RANS modelling approach for predicting powering performance of ships in waves
Björn Windén,Stephen Turnock,Dominic Hudson 대한조선학회 2014 International Journal of Naval Architecture and Oc Vol.6 No.2
In this paper, a modelling technique for simulating self-propelled ships in waves is presented. The flow is modelled using a RANS solver coupled with an actuator disk model for the propeller. The motion of the ship is taken into consideration in the definition of the actuator disk region as well as the advance ratio of the propeller. The RPM of the propeller is controlled using a PID-controller with constraints added on the maximum permissible RPM increase rate. Results are presented for a freely surging model in regular waves with different constraints put on the PID-con-troller. The described method shows promising results and allows for the studying of several factors relating to self-propulsion. However, more validation data is needed to judge the accuracy of the model.
Rethinking Japan's China Policy: Japan as an Accomodator in the Rise of China, 1978-2011
Björn Jerdén,Linus Hagström 동아시아연구원 2012 Journal of East Asian Studies Vol.12 No.2
For the last four decades Sino-Japanese relations have been characterized by steadily growing economic and sociocultural interactions. Yet, greater interdependence has developed in tandem with bilateral tensions. Many analysts have attempted to explain the latter as a result of Japan trying to balance or contain the burgeoning growth of Chinese capabilities. In this article, we question and qualify this widespread understanding of Japan's response to China's rise by examining how Japan has handled China's rise between 1978 and 2011. More precisely, how has Japan dealt with China's long-term core strategic interests, which are embodied in the post-1978 Chinese “grand strategy” that is believed to have been instrumental to China's rise? Our main finding is that to a significant degree Japan has accommodated the rise of China rather than balanced against it.
Björn Boman 이화여자대학교 아시아여성학센터 2022 Asian Journal of Women's Studies(AJWS) Vol.28 No.4
While contemporary South Korea is fairly westernized but represents a lag in the spheres of culture and politics, it is expected that the current Korean wave or Hallyu 4.0 – popular cultural content, diffused as of 2016 – are cumulatively signified by feminist themes, merged with more traditional Korean and East Asian cultural elements. Five representative Hallyu 4.0 dramas are examined here, based on cultural globalization theory (e.g., hybridization), along with a review of some earlier studies of Korean dramas and relevant strands of feminist scholarship. The findings suggest that much of the moderately modern elements found in earlier waves of Korean drama are still present, while liberal or neoliberal feminist elements are manifest in all five shows, although to different degrees. This ideological shift, in part, reflects recent sociocultural changes.
Serious Play: Bibliodrama in the Context of Creative Incarnation
Björn Krondorfer 한국사이코드라마.소시오드라마학회 2008 한국사이코드라마학회지 Vol.11 No.1
Bibliodrama refers to the “drama of books” etymologically, and particularly refers to the dramatic enactment of biblical stories. In the Christian tradition, we have the notion of “incarnation” that can be interpreted to mean that we as humans can locate the divine in our bodies. This is why biblical stories work so well. Yet, the bibliodramatic method is not limited to the Bible. I have applied the technique to poetry and short stories; others have worked with select literary vignettes, Greek mythology, Mesopotamian myths, or even hagiographies. In view of bibliodrama in comparison with the theatrical performances, Bibliodrama is not a staged play for which actors rehearse a given role. Improvisation and spontaneity are essential elements. It is played only by and for the people who are actively participating in workshops with no spectators. As bibliodrama focuses on process and people, on improvisation and creative encounters a lot, one might think that it is akin to a therapeutic session or Bibliodrama must be like psychodrama with biblical protagonists. Surely, certain therapeutic elements are part of Bibliodrama. However it would be better to call it pre-therapeutic or proto-therapeutic. It does not diagnose or heal individual pathologies, but develops its healing power in the mediation between a given biblical narrative, creative spontaneous play, and the dynamics of individual participants engaged in a facilitated group setting. Bibliodrama is “serious play” that requires the active participation of adults willing to confront life in all its dimensions. Bibliodrama, Victor Turner said, “is not just ‘having fun’ [but] deals with the whole gamut of experience both contemporary and stored in culture”. As Bibliodramatists, we cannot underestimate the seriousness of play and we need to be prepared to evaluate the interpretive work accomplished in these encounters. And since it is always at risk of deteriorating to self referential, regressive or infantile play, we should perform the bibliodrama with consideration.
Albena Björck,Michelle Carvajal Ramirez 글로벌지식마케팅경영학회 2020 Global Marketing Conference Vol.2020 No.11
Managers in an attempt to provide their companies a greater growth opportunities are taking their products and brands to an international level (Ghantous, Iii, 2008). When internationalizing, the product’s quality, reputation and other characteristics can be determined by its origins, as consumers tend to hold stereotyped images of products made in different countries. Hence, the country of origin (COO) constitutes an important extrinsic cue that consumers use to evaluate foreign products which they are not familiar with it (Okechuku, 1994; WTO, 2018). The COO impacts directly consumers’ evaluation process and indirectly consumers’ purchase process (Saran, Gupta, 2012). This phenomenon was first studied by Schooler (1965), and it is said to be "one of the widest research concepts in all the international business, consumer behavior, and marketing literature" combined (Pharr, 2005).
A shelf-life study of silica- and carbon-based mesoporous materials
Emma M. Björk,Aylin Atakan,Pei-Hsuan Wu,Alessandra Bari,Carlotta Pontremoli,Kai Zheng,Dimitra Giasafaki,Giorgio Iviglia,Elisa Torre,Clara Cassinelli,Marco Morra,Theodore Steriotis,Georgia Charalambopo 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.101 No.-
Mesoporous silica- and carbon-based materials, including bioactive glasses, have proven potential ascomponents of medical devices and as drug carriers. From an application perspective, knowledge aboutthe shelf-life stability of these materials under various conditions is vital. Here, mesoporous bioactiveglasses (MBGs) synthesized by aerosol-assisted spray-drying and by a batch sol–gel method, mesoporoussilicas of SBA-15 type, and mesoporous carbons CMK-1 and CMK-3 have been stored under varying conditions,e.g. at different temperature and relative humidity (RH), and in different storage vessels. Theresults show that the silica-based materials stored in Eppendorfs are sensitive to humidity. Spray driedMBGs decompose within 1 month at a RH >5%, whilst sol–gel MBGs are more stable up to a RH >60%. Changing the storage vessel to sealed glass flasks increases the MBGs lifetime significantly, with nodegradation during 2 months of storage at a RH = 75%. SBA-15 stored in Eppendorfs are more stable comparedto MBGs, and addition of F- ions added during the synthesis affects the material degradation rate. Mesoporous carbons are stable under all conditions for all time points. This systematic study clearlydemonstrates the importance of storage conditions for mesoporous materials which is crucial knowledgefor commercialization of these materials.