Forecasting Challenges Associated with Tropical Cyclones within Subtropical Gyres

2014 ◽  
Vol 29 (1) ◽  
pp. 99-114 ◽  
Author(s):  
Brian Crandall ◽  
John Molinari ◽  
David Vollaro

Abstract This case study examines the complex history of a tropical storm that formed southeast of a large subtropical gyre. In real time the tropical storm was incorrectly identified as being two separate storms, and at one time was mislocated by 465 km. The unique forecast problems associated with tropical cyclones within a subtropical gyre are described. The tropical storm propagated around the gyre and encountered a midlevel temperature gradient to the north. The interaction of the storm with this gradient produced a strong midtropospheric temperature dipole. Temperature advection within this feature produced a change in structure to a subtropical storm corotating with an upper low. The subtropical storm turned equatorward and nearly came to a halt as the upper low became aligned with the storm. As convection increased over warm water, the upper low shifted away from the center and the storm reversed direction and moved poleward. These sudden track changes have frequently been observed in the northwest Pacific, but the role of midtropospheric temperature gradients has not previously been addressed. Clear air at the gyre center coincided with a region of cold advection. A fishhook structure in the gyre cloudiness developed as a result of warm advection east and north of the gyre. The subtropical structure of the storm evolved within the fishhook. It is recommended that the Joint Typhoon Warning Center (JTWC) provide formal warnings on subtropical storms, because their baroclinic nature can produce dramatic track changes associated with the presence of upper lows near the center.

Author(s):  
Kathryn M. de Luna

This chapter uses two case studies to explore how historians study language movement and change through comparative historical linguistics. The first case study stands as a short chapter in the larger history of the expansion of Bantu languages across eastern, central, and southern Africa. It focuses on the expansion of proto-Kafue, ca. 950–1250, from a linguistic homeland in the middle Kafue River region to lands beyond the Lukanga swamps to the north and the Zambezi River to the south. This expansion was made possible by a dramatic reconfiguration of ties of kinship. The second case study explores linguistic evidence for ridicule along the Lozi-Botatwe frontier in the mid- to late 19th century. Significantly, the units and scales of language movement and change in precolonial periods rendered visible through comparative historical linguistics bring to our attention alternative approaches to language change and movement in contemporary Africa.


Author(s):  
Alessandro Portelli

This article centers around the case study of Rome's House of Memory and History to understand the politics of memory and public institutions. This case study is about the organization and politics of public memory: the House of Memory and History, established by the city of Rome in 2006, in the framework of an ambitious program of cultural policy. It summarizes the history of the House's conception and founding, describes its activities and the role of oral history in them, and discusses some of the problems it faces. The idea of a House of Memory and History grew in this cultural and political context. This article traces several political events that led to the culmination of the politics of memory and its effect on public institutions. It says that the House of Memory and History can be considered a success. A discussion on a cultural future winds up this article.


Author(s):  
Ilona Bidzan-Bluma

Objective: It is estimated that twin-to-twin transfusion syndrome (TTTS) occurs in 10–15% of monochorionic twin pregnancies. One of the fetuses takes on the role of donor and the other of recipient. The treatment administered involves serial amnioreduction and laser photocoagulation of the communicating blood vessels. After TTTS, children may have deficiencies in psychomotor functioning, in particular in cognitive functions, expressive language, and motor skills. Few scientific reports indicate that twins after TTTS do not demonstrate significant differences in tests which measure intellectual functioning. Methods: The cognitive functioning of twins in the late childhood period was compared using the following tools: an analysis of their medical history, an interview with their parents, and neuropsychological tests allowing the evaluation of their whole profile of cognitive functions. Case Study: Cognitive functioning in the late childhood period was analyzed in a pair of 11-year-old male twins (juvenile athletes), a donor and a recipient, who had developed TTTS syndrome in the prenatal period. Results: Comparison of the cognitive functioning profile of the donor and recipient revealed that children with a history of TTTS develop normally in terms of cognitive and motor functioning in late childhood. A comparative analysis of the donor and recipient was more favorable for the recipient, who had a higher level of general intelligence, visual–motor memory, and semantic fluency. Conclusions: The fact that both the donor and the recipient chose to pursue athletics suggests that gross motor skills are their strongest suit. Playing sports as a method of rehabilitation of cognitive function of children born prematurely after TTTS could contribute to the improvement of cognitive functioning.


2018 ◽  
Vol 95 (3) ◽  
pp. 2-20 ◽  
Author(s):  
Andrew Wiese

Place-based activism has played a critical role in the history of urban and environmental politics in California. This article explores the continuing significance of environmental place making to grassroots politics through a case study of Friends of Rose Canyon, an environmental group in San Diego. Based in the fast-growing University City neighborhood, Friends of Rose Canyon waged a long, successful campaign between 2002 and 2018 to prevent construction of a bridge in the Rose Canyon Open Space Park in their community. Using historical and participant observer methodologies, this study reveals how twenty-first-century California urbanites claimed and created meaningful local places and mobilized effective politics around them. It illuminates the critical role of individual activists; suggests practical, replicable strategies for community mobilization; and demonstrates the significant impact of local activism at the urban and metropolitan scales.


2016 ◽  
Vol 52 (2) ◽  
pp. 503-527
Author(s):  
E. JAMES WEST

This article explores the role ofEbonymagazine as a key staging ground for competing political and ideological debates over Martin Luther King Jr's legacy, and the struggle for a national holiday in his name. In doing so, it provides an important case study into the contestations between what Houston Baker has described as “black critical memory” and “black conservative nostalgia.” In response to attempts by Ronald Reagan and other politicians to reimagine King as an advocate for color-blind conservatism,Ebony’s senior editor, Lerone Bennett Jr., sought to situate King's legacy within a radical “living history” of black America. However, the magazine's broader coverage of the King holiday movement betrayed underlying tensions within its discussion of King's legacy, and fed into the magazine's role as an inadvertent frame for color-blind ideologies during the 1980s.


2020 ◽  
pp. 7-32
Author(s):  
Katarzyna Kulczyńska ◽  
Natalia Borowicz ◽  
Karolina Piwnicka-Wdowikowska

Morasko University Campus in Poznań – origin, spatial and functional structure, transport solutions The purpose of the paper is to characterize the most recently created part of the Adam Mickiewicz University – the Morasko Campus. The paper consists of three parts. The first concerns the origins and development of the campus. The second part presents its spatial and functional structure on the basis of a field inventory, while the third one – campus transport solutions based on a survey conducted among students. The history of the campus located in the northern, peripheral part of the city began with laying the foundation act and the cornerstone in 1977. The agricultural role of this area, dominant until the 1980s, has been replaced with new functions, mainly academic and scientific ones. The first university buildings were commissioned in the 1990s, and the construction boom began after 2000. A total of nine faculties (out of 21 existing) are housed in eight buildings in the campus, including exact and natural sciences, as well as a part of social sciences and humanities. To this day, neither student dormitories nor accommodation for PhD students have been constructed (although they are likely to be built), which would emphasize the academic function of the campus. The campus also comprises areas with recreational, sports, residential and other service functions (e.g. catering, beauty, hairdressing, and commercial services), which are complemented by areas that serve transport functions. Location in the northern periphery of the city, and above all the railway line for freight (the northern bypass of Poznań) separating the city from the campus, makes transport to this part of the city limited. The results of the survey revealed a lack of a safe bicycle path between the western and eastern part of the campus, insufficient number of parking places for motorists, a lack of paved roads from the north and west, only three narrow access roads for car commuters, and difficult access by public transport to the eastern and north-eastern parts. In the latter case, the planned extension of the tram line towards Umultowo after the year 2022 is expected to solve the problem. Zarys treści: Celem opracowania jest charakterystyka najmłodszej przestrzeni Uniwersytetu im. Adama Mickiewicza – Kampusu Morasko. Opracowanie składa się z trzech zasadniczych części. Pierwsza część artykułu dotyczy genezy powstania i rozbudowy miasteczka uniwersyteckiego. W drugiej części przedstawiono strukturę przestrzenno-funkcjonalną kampusu w oparciu o inwentaryzację terenową, w trzeciej zaś obsługę transportową na podstawie badań ankietowych przeprowadzonych wśród studentów. Historia położonego w północnej, peryferyjnej części miasta kampusu rozpoczęła się od wmurowania aktu erekcyjnego i kamienia węgielnego w 1977 r. Dominująca do lat 80. XX w. funkcja rolnicza tego obszaru została zastąpiona przez nowe funkcje, głównie akademickie i naukowe. Pierwsze budynki dydaktyczne oddano do użytku dopiero w latach 90. ubiegłego wieku, a boom budowlany rozpoczął się po roku 2000. Swoją siedzibę znalazły tutaj nauki ścisłe i przyrodnicze, a także część nauk społecznych i humanistycznych, w sumie dziewięć wydziałów (na 21 istniejących) w ośmiu budynkach. Do dzisiaj nie wybudowano akademików czy domu doktoranta (choć istnieją realne szanse na ich powstanie), co podkreśliłoby funkcję akademicką kampusu. W strukturze kampusu wyróżnia się ponadto obszary o funkcjach rekreacyjnych, rekreacyjno-sportowych, mieszkaniowych i innych o charakterze usługowym (np. usługi gastronomiczne, kosmetyczne, fryzjerskie, handel), których uzupełnieniem są obszary o funkcjach komunikacyjnych. Położenie na północnych peryferiach miasta, a przede wszystkim linia kolejowa dla przewozów towarowych (północna obwodnica Poznania) oddzielająca miasto od kampusu sprawiają, że obsługa transportowa tej części miasta jest ograniczona. Wyniki badań ankietowych wskazują na brak bezpiecznej drogi rowerowej między zachodnią i północno-wschodnią częścią kampusu, niewystarczającą liczbę miejsc parkingowych dla zmotoryzowanych, brak utwardzonych dróg od strony północnej i zachodniej, zaledwie trzy wąskie wjazdy na kampus dla dojeżdżających samochodem czy utrudniony dojazd komunikacją publiczną do części wschodniej i północno-wschodniej. W tym ostatnim przypadku rozwiązaniem ma być planowana po 2022 r. rozbudowa linii tramwajowej w kierunku Umultowa.


Lumina ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 84-96
Author(s):  
Svetlana Simakova

The goal of the present study is to demonstrate the media-aesthetic potential of infographic messages on particular cases. This can be done due to an integrated approach to the analysis of the visual content of media content. That indicates the case study method implementation as well as description and generalization. The theoretical basis of the research is represented by scientific studies of various directions. That includes the history of media and visual media culture; features of the concepts of media culture and media language, media aesthetics; infographics as a tool of media language. The empirical basis of the study is journalistic materials containing infographic content of such publications as by RIA Novosti (ria.ru), TASS (tass.ru). The examples of visual image implementation in the transmission of information — media content containing infographics — are given and analyzed. Considering media aesthetics as the formation of a sensory perception of the proposed media content, the author turns to the philosophical and aesthetic foundations of visual practices in the media and post-humanistic trends in journalism. As a result of the analysis of the theoretical and practical basis of the research, the author comes to the conclusion that today the role of the media aesthetic component of messages is most relevant. And infographics, as the connecting link of language and consciousness, is its most striking tool.


AKADEMIKA ◽  
2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Moh. Ah. Subhan ZA ◽  
Akmalur Rijal

The purpose of zakat to develop the social economic value of society is difficult to materialize if there is no active role of zakat managers (amil) who are required to be professional and innovative in managing zakat funds. The main function of the amil zakat institution lies in the activities of collecting, distributing, and utilizing zakat. The activity of collecting zakat in the history of Islam, is an activity or effort of amil in collecting zakat by picking up or taking from the place of amil. In addition to taking zakat, the amils who are in charge of taking zakat must also pray for those who pay zakat.This study aims to determine the implementation of productive zakat fund management and empowerment of the poor on zakat funds that are given by LAIZSNU Lamongan. By using the case study method, so as to be able to photograph how LAZISNU Lamongan's performance is in managing productive zakat funds . Lazisnu Lamongan has 3 zakat distribution programs, namely humanitarian, health and economic assistance. The mustahik empowerment program is included in the economic assistance program.


Author(s):  
Andrea Carrasco ◽  
María E Díaz

Recent academic research highlights the role of leadership identity when thinking about the improvement of the educational field. Based on this research, this article aims to identify and analyze the elements that affect the development of leadership identity in female school principals within the Chilean context. This is achieved by working from a biographical-narrative approach, specifically from the life history technique. This analysis emerges from a considerate reflection on the teachings, and personal and professional milestones highlighted in the biogram. Both personally and professionally, a multiplicity of elements is observed in the life history of María Eliana, influencing the development of her leadership identity, particularly highlighting her self-recognition as a woman. This identity is oriented towards social justice, based on socio-emotional tools such as care, empathy, and participation; and understands and values the role these elements must take in Chilean education. The case study presents tensions for the Chilean educational system, which must be able to address the complexities that women experience while holding leadership positions, especially when challenged with the perspective that school is an inclusive space of social justice.


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