The focus of this study is to classify flag-transitive 2-designs. We have come to the conclusion that if D is a nontrivial 2-design having block size 5 and G is a two-dimensional projective special ...linear group which acts flag-transitively on D with q≢1 (mod 4), then D is a 2-(11, 5, 2) design, a 2-(11, 5, 12) design, a 2-q+1,5,2q−1 design with q≡3 (mod 4) or a 2-q+1,5,q−1/3 design with q=2f (where f>2 is an even).
Issue Information
The FEBS journal,
10/2022, Letnik:
289, Številka:
20
Journal Article
Recenzirano
Cover IllustrationFluorescence image of adult flies. Shown are the control fly strain (w1118) on the left and a fly strain bearing a knock‐in FLAG‐tagged PTIP allele (PTIP‐FLAG) on the right. See the ...Original Article by Ming Fang, Hao Xie and co‐authors (pages 6324‐6341).
The use of flags afloat and in most maritime situations is of interest and relevance to anyone going to sea whether for commerce or pleasure. This handy pocket-sized guide is the perfect on-board ...reference to the maritime flags of the world and their usage. It includes: national maritime flags special ensigns yacht club burgees signal flags and flag etiquette and usage. Anyone who has ever put to sea wondering about the different typesof flag, how they are made up and the dos and don'ts as well astraditions and myths of flying flags should find this a fascinating and useful handbook.
“Is Our Eagle White or Golden?” Some Thoughts on Disputes over Commemoration and Promotion of the Duchy of Cieszyn: The article is focused on the discussion accompanying the reconstruction of the ...flag of the Duchy of Cieszyn. According to the plan of the initiators of the mentioned project, this act should help to create a touristic brand called “Duchy of Cieszyn”. The flag was supposed to help in the process of promoting the Cieszyn Silesia as an attractive touristic region. A couple of days after the flag was presented, the authors of the idea had to face the accusation that they supported the Silesian separatist tendencies which are associated with the Silesian Autonomy Movement Ruch Autonomii Śląska – RAŚ. The article presents the arguments of both sides: the critics and initiators of the reconstructed flag. It tries to show the sources of the disputes and narrations of each of the opponents. In the middle of these arguments there are different points of view on the region and its past. They are linked with the different identity and experience of the regional past. The article also focuses e.g., on tensions between identities built around the categories of Cieszyn Silesia and Podbeskidzie which is the unofficial name of the area on the borderland between the historical regions of Lesser Poland Małopolska and Cieszyn Silesia. Essentially, the identity of the inhabitants of Podbeskidzie has started to develop after World War II. On the one hand it is linked with the process of cultural forgetting, on the other hand the inhabitants have various experiences of the past. The article also tries to present the opinions of a couple of representants of the Polish minority in Zaolzie Trans-Olza in the Czech Republic regarding the reconstruction of the Duchy of Cieszyn flag. In general, the article focuses on conflicts of memory as well as tensions between local / regional and national perspectives.
•Flapping dynamics and wall heat removal of dual inverted flags are studied.•Two configurations, side-by-side and staggered, are experimentally determined.•Three dynamic regions were identified as ...biased, flapping and deflected modes.•Heat transfer was considerably enhanced in two configurations.•Staggered flags close to wall further improved thermal enhancement factor.
This study experimentally determined the flapping dynamics of dual self-oscillating inverted flags placed inside turbulent channel flows in side-by-side and staggered configurations and their ability to enhance wall heat removal. Three clearance-distance to channel-width ratios (Gc/W = 0.19, 0.31, and 0.5) and three streamwise-distance to channel-width ratios (Gy/W = 0, 2, and 4) were used to examine distinct flag behaviors. A single flag mounted to the heated wall with various gap clearances was chosen as the benchmark. The flags’ time-varying motions were recorded by a high-speed camera system. Three dynamic regimes were identified on the basis of the flags’ dimensionless stiffness and the channel flow’s Reynolds number: the biased mode, the flapping mode, and the deflected mode. Temperature sensitive paint (TSP) measurements demonstrated that the best cooling enhancement, with a local Nusselt number ratio of over 1.6, was achieved for the single flag system at Gc/W = 0.19. Adding another inverted flag to the side-by-side configuration at Gc/W = 0.19 further enhanced the heat removal performance on both channel walls, and the flapping period increased by nearly 50%. However, placing two side-by-side flags close to each other (Gc/W = 0.31) led to chaotic flapping motions, resulting in diminutive augmentation in heat transfer and an appreciable penalty in pressure drop. In the staggered configuration at Gy/W = 2 and 4, the two inverted flags synchronously flapped with a stable phase difference, and the flapping periods were similar to those of the single flag. The peak Nusselt number ratio was 1.9 for Gy/W = 2, which was attributed to the concerted influence of the staggered inverted flags. The system with staggered flags placed close to the heated wall had a higher thermal enhancement factor than the system with flags mounted in tandem along the channel centerline.
The banners are a difficult topic to address in scientific research due to the lack of material archaeological sources and evidences. In this regard, what has been found does not satisfy a ...researcher's passion for a comprehensive study of flags and banners of all kinds. One of these few archaeological evidences is known as Portulan charts (nautical charts). In this paper, we will highlight the flags and banners of the Central Maghreb, which were drawn on these charts, mainly in the first phase that witnessed the manufacture and development of Portulan charts in the 8th CenturyHijri, 14thcentury AD.
Owner and CEO of Arkansas Flag & Banner of Little Rock Earlier this year, the Arkansas Educational Television Network premiered the documentary "Dream Land: Little Rock's West 9th Street," telling ...the story of the once vibrant African-American business and entertainment district. Has the recent uproar over Confederate symbols affected you and what's your reasoning for your eclectic offerings? I am glad you did your research and realize our offering is eclectic. In the 1930s, it housed the Dreamland Ballroom and featured performers such as Duke Ellington, Nat King Cole, Louis Armstrong, Count Basie, Ella Fitzgerald, Redd Foxx and Sammy Davis Jr.
There have been numerous theories from numerous academic fields explaining why individuals engage in tax evasion. Drawing broadly on Social Identity Theory, we predict that exposure to one's national ...flag can reduce tax evasion by making salient one's national identity, motivating one to sacrifice one's self‐interests for one's country—which would presumably include paying one's fair share of taxes. In three experiments, we found that exposure to American, Australian, and British flags reduced Americans', Australians', and Britons' tax evasion in financially incentivized tasks (Experiments 1, 3) and increased tax‐paying attitudes (Experiment 2). The effects arose because flag primes made salient participants' national identities that then motivated them to help their country. We ruled out social norms and trust in authorities as alternative explanations. As such, flag primes might reduce tax evasion and in doing so improve the economic and societal welfare of a country.
