scholarly journals The Taming of Psidium guajava: Natural and Cultural History of a Neotropical Fruit

2021 ◽  
Vol 12 ◽  
Author(s):  
Edna Arévalo-Marín ◽  
Alejandro Casas ◽  
Leslie Landrum ◽  
Myrtle P. Shock ◽  
Hernán Alvarado-Sizzo ◽  
...  

Guava (Psidium guajava L., Myrtaceae) is a Neotropical fruit that is widely consumed around the world. However, its evolutionary history and domestication process are unknown. Here we examine available ecological, taxonomic, genetic, archeological, and historical evidence about guava. Guava needs full sunlight, warm temperatures, and well-distributed rainfall throughout the year to grow, but tolerates drought. Zoochory and anthropochory are the main forms of dispersal. Guava’s phylogenetic relationships with other species of the genus Psidium are unclear. A group of six species that share several morphological characteristics are tentatively accepted as the Psidium guajava complex. DNA analyses are limited to the characterization of crop genetic diversity within localities and do not account for possible evolutionary and domestication scenarios. A significant amount of archeological information exists, with a greater number and older records in South America than in Mesoamerica, where there are also numerous historical records. From this information, we propose that: (1) the guava ancestor may have originated during the Middle or Late Miocene, and the savannas and semi-deciduous forests of South America formed during the Late Pleistocene would have been the most appropriate ecosystems for its growth, (2) the megafauna were important dispersers for guava, (3) dispersal by humans during the Holocene expanded guava’s geographic range, including to the southwestern Amazonian lowlands, (4) where its domestication may have started, and (5) with the European conquest of the Neotropics, accompanied by their domestic animals, new contact routes between previously remote guava populations were established. These proposals could direct future research on the evolutionary and domestication process of guava.

Transfers ◽  
2013 ◽  
Vol 3 (1) ◽  
pp. 7-25 ◽  
Author(s):  
Mikkel Thelle

The article approaches mobility through a cultural history of urban conflict. Using a case of “The Copenhagen Trouble,“ a series of riots in the Danish capital around 1900, a space of subversive mobilities is delineated. These turn-of-the-century riots points to a new pattern of mobile gathering, the swarm; to a new aspect of public action, the staging; and to new ways of configuring public space. These different components indicate an urban assemblage of subversion, and a new characterization of the “throwntogetherness“ of the modern public.


PMLA ◽  
2019 ◽  
Vol 134 (1) ◽  
pp. 157-163
Author(s):  
William G. Acree

Between November 1879 and January 1880, the argentine author Eduardo Gutierrez published a serialized narrative of the life of Juan Moreira in the Buenos Aires newspaper La Patria Argentina. Titled simply Juan Moreira, the heroic tale of the real-life outlaw went like this: Moreira was a good gaucho gone bad, who fought to preserve his honor against the backdrop of modernizing forces that were transforming life in this part of South America. His string of crimes and ultimate downfall resulted from his unjust persecution by corrupt state officials. The success of the serial surpassed all expectations. The paper's sales skyrocketed, and the melodramatic narrative soon appeared in book form. Enterprising printers produced tens of thousands of authorized and pirated editions to sell in the Rio de la Plata (Argentina and Uruguay), making Juan Moreira a leading example of everyday reading for the region's rapidly growing literate population and one of Latin America's pre-twentieth-century bestsellers (Acree, Everyday Reading; Gutiérrez, The Gaucho Juan Moreira).


1970 ◽  
Vol 1 (3) ◽  
pp. 62-67 ◽  
Author(s):  
B Ahmed ◽  
MA Mannan ◽  
SA Hossain

Psidium guajava L. is a perennial fruit tree in subtropical and tropical areas. In Bangladesh, P. guajava has been used as edible fruits and people use it to treat acute diarrhea, cough and intestinal spasmodic diseases. In the present study, morphological and molecular characterizations were used to display different levels of variability. Molecular marker random amplified polymorphic DNA (RAPD) was used for the molecular identification of 33 P. guajava germplasm from three selected south-western location of Bangladesh. Among them, eleven commercially cultivated germplasm and the rest twenty two were collected from local farmers. The 10-mer and 12-mer oligonucleotide primers were used in RAPD to amplify. Four primers, A02, A03, S07 and S08, were able to direct the amplification and yield a total of 252 band patterns of which 33.19% were polymorphic. The highest percent of polymorphic loci (37.5%) was observed from primer A03 and the lowest (28.57%) was from primer S08. Results were analyzed by molecular algorithm UPGMA and Neighbor-Joining. Thirty-three genotypes on the dendrogram were identified and divided into two major groups and subgroups on the basis of morphological characteristics and also on the uncultivated and commercial cultivars. The range of genetic distance was observed 0.5253 (Jelly and Thai) to 0.6631 (V30 and V 22). Based on the cluster analysis, the P. guajava samples have morphological difference were grouped independently. The results suggested that RAPD is useful for the discrimination of uncultivated, cultivars P. guajava for high economy.Key words: Guava; Germplasm; RAPD; Marker; Dendrogram.DOI: http://dx.doi.org/10.3329/ijns.v1i3.8823International Journal of Natural Sciences (2011), 1(3):62-67


Author(s):  
Igor Grossmann ◽  
Franki Kung

The concept of wisdom is ancient and deeply embedded in the cultural history of humanity. However, only since 1980s have psychologists begun to study it scientifically. Taking a culturally and philosophically informed perspective, this article integrates insights from the quantitative science of wisdom. Analysis of epistemological traditions and research on folk theories of wisdom suggest cultural similarities in the domain of cognition (e.g., wisdom as reasoning ability and knowledge). These similarities can be contrasted with cultural differences concerning folk-theoretical affective and prosocial themes of wisdom, as well as expression of various wisdom-related themes, rooted in distinct sociocultural and ecological environments. Empirical evidence indicates that wisdom is an individually and culturally malleable construct, consistent with an emerging constructionist account of wisdom and its development. Future research can benefit from integration of ecological and cultural-historical factors for the meaning of wisdom and its expression.


2011 ◽  
Vol 31 ◽  
pp. 137-158 ◽  
Author(s):  
David Quinto-Pozos

American Sign Language (ASL) has become a very popular language in high schools, colleges, and universities throughout the U.S., due, in part, to the growing number of schools that allow students to take the language in order to fulfill a foreign or general language requirement. Within the past couple decades, the number of students enrolled in ASL classes has increased dramatically, and there are likely more instructors of ASL at the present time than ever before. ASL and spoken language instruction are similar in some aspects; however, there are also differences between the two (e.g., modality differences involving visual rather than auditory perception and processing, no commonly used writing system in ASL, and the socio-cultural history of deaf-hearing relations). In spite of these differences, minimal research has been done on ASL learning and classroom pedagogy—especially in recent years. This article reports on studies that have been performed recently and it also suggests various themes for future research. In particular, three main areas of research are proposed: the possible role of the socio-political history of the Deaf community in which ASL teaching is situated, linguistic differences between signed and spoken languages, and the use of video and computer-based technologies.


2020 ◽  
Vol 36 (1) ◽  
pp. 1-10
Author(s):  
Haidel Vargas Madriz ◽  
María Guzmán Martínez ◽  
Jesús Alberto Acuña Soto ◽  
Ausencio Azuara Domínguez ◽  
Pedro Fabián Grifaldo Alcántara ◽  
...  

Tomato is one of the most consumed vegetables per capita in the world; it is grown both in the open and in greenhouses. Nevertheless, under both growing conditions, the problem of pests is quite relevant, especially considering Bactericera cockerelli Sulc, therefore, in this experiment, the life history of this pest insect was determined in two tomato varieties: “Charanda F1” and “Rafaello”, the differences in the development stages of the insect, the mean temperatures of two cycles, and the accumulated heat units. The work consisted of evaluating the development of the instars of B. cockerelli during two crop cycles in both varieties, as well as the accumulation of heat units to differentiate the distinct instars. The insect populations developed in the Rafaello variety had shorter lives and showed a greater death rate of eggs than did those that developed in Charanda F1. Temperature was another determining factor; the lower the temperature, the longer the lives. Likewise, heat units were different between the two varieties; in Rafaello, 598.13 heat units were needed while in Charanda F1 only 464.98. These differences might be due to the morphological characteristics of each variety such as the presence of trichomes and oils. Thus, we suggest that these variables be studied in future research works.


1950 ◽  
Vol 15 (4Part1) ◽  
pp. 341-343 ◽  
Author(s):  
Clifford Evans

As a supplement to the recent review of H. V. Walter's book, The Prehistory of the Lagôa Santa Region, some additional information about the nature of his recent archaeological work is of interest. After the completion of our own year of archaeological field work in the Lower Amazon, three days were spent in the Lagôa Santa Region, Belo Horizonte, Minas Gerais with Mr. H. V. Walter studying his collections, and visiting and excavating with him some of the rock shelters and caves. Two sites, not mentioned in his report, are of such archaeological importance in the preceramic cultural history of South America that they should be brought to the attention of other archaeologists.By way of introduction, it should be stated that Mr. Walter, the British Vice-Consul in Belo Horizonte, is primarily interested in paleontological data, a quest which for fifteen years has led him to extensive exploration at his own cost in the caves in and around the Lagôa Santa region.


Muzikologija ◽  
2006 ◽  
pp. 317-342 ◽  
Author(s):  
Aleksandar Vasic

The beginning of 2006 marked two decades since the death of Stana Djuric-Klajn, the first historian of Serbian musical literature. This is the exterior motive for presenting a summary of the state and results of up-to-date musicology research into Serbian musical criticism and essay writings during the XIXth and the first half of the XXth century, alongside the many works dedicated to this branch of national musical history, recently published. In this way the reader is given a detailed background of these studies ? mainly the authors' names, books, studies, articles, as well as the problems of this branch of Serbian musicology. The first research is associated with the early years of the XXth century, that is, to the work of bibliography. The pioneer of Serbian ethnomusicology, Vladimir R. Djordjevic composed An Essay of the Serbian Musical Bibliography until 1914, noting selected XIXth century examples of Serbian literature on music. Bibliographic research was continued by various institutions and experts during the second half of the XXth century: in Zagreb (today Republic of Croatia); the Yugoslav Institute for Lexicography, Novi Sad (Matica srpska); and Belgrade (Institute for Literature and Art, Slobodan Turlakov, Ljubica Djordjevic, Stanisa Vojinovic etc). In spite of the efforts of these institutions and individuals, a complete analytic bibliography of music in Serbian print of the last two centuries has unfortunately still not been made. The most important contributions to historical research, interpretation and validation of Serbian musical criticism and essay writings were given by Stana Djuric-Klajn, Dr Roksanda Pejovic and Dr Slobodan Turlakov. Professor Stana Djuric-Klajn was the first Serbian musicologist to work in this field of Serbian music history. She wrote a significant number of studies and articles dedicated to Serbian musical writers and published their selected readings. Prof. Klajn is the author and editor of the first and only anthology of Serbian musical essay writings. Her student Roksanda Pejovic published two books (along with numerous other factually abundant contributions), where she synthetically presented the history of Serbian criticism and essay writings from 1825 to 1941. Slobodan Turlakov, an expert in Serbian criticism between the World Wars, meritorious researcher and original interpreter, especially examined the reception of music of great European composers (W. A. Mozart, L. v. Beethoven, F. Chopin, G. Verdi, G. Puccini etc) by Serbian musical critics. Serbian musical criticism and essay writings were also the focus of attention of many other writers. The work quotes comments and additions of other musicologists, but also historians of theatre, literature and art philosophers, aestheticians, sociologists, all members of different generations, who worked or still work on the history of the Serbian musical criticism and essay writings. The closing section of the text suggests directions for future research. Firstly, it is necessary to begin integral bibliographical research of texts about music published in our press during the cited period. That is a project of capital significance for national science and culture; realization needs adequate funding, the involvement of many academic experts, and time. Work on bibliography will also enable the collection and publication of sources: books and articles by Serbian music writers who worked before 1945. A separate problem is education of scholars. To study musical literature, a musicologist needs to be knowledgeable about the history of Serbian literature, aesthetic theory, and theatre, national social, political and cultural history, and methodology of literary study. That is why facilities for postgraduate and doctorial studies in musicology are necessary at the Faculties of Philology and Philosophy.


2018 ◽  
Vol 23 (3) ◽  
pp. 344-367
Author(s):  
Luciana Martins

This article focuses on the global traffic in images relating to Kadiwéu culture in South America, analysing the extent to which they are entangled in the group’s continuing sense of presence. It begins with Kadiwéu designs as they appeared in the sketchbook of the artist–explorer Guido Boggiani in the late 19th century. It then explores the mapping of Kadiwéu territory and the practices and protocols informing a politics of land rights, cultural property and economic survival, looking in particular at the commissioning of Kadiwéu designs for a housing estate and an associated exhibition in Berlin early in the 21st century. By developing a cross-cultural history of Kadiwéu art that considers the transnational networks across different times and spaces, including the case of a transcultural history of copyright, the article seeks to contribute to the ongoing re-thinking of the colonial visual archive and its afterlife.


2021 ◽  
Vol 7 (5) ◽  
pp. 3627-3635
Author(s):  
Cai Su-long

The study of transnational migration and Wenzhou local society is an important part of the study of the social and economic history and cultural history of Wenzhou overseas Chinese hometown. Transnational migration plays an important role in the history of Wenzhou local social transformation and Chinese modernization. It has its unique style and regional significance in the international migration movement and the international migration movement of Chinese overseas Chinese society. On the basis of combing and summarizing the academic history and research trends of the related research in recent years, this paper analyzes the characteristics and existing problems of the research, and puts forward the future research orientation and suggestions.


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