On the Impossibility of an Exact Imperfect Monitoring Folk Theorem

It is shown that, for almost every two-player game with imperfect monitoring, the conclusions of the classical folk theorem are false. So, even though these games admit a well-known approximate folk theorem, an exact folk theorem may only be obtained for a measure zero set of games. A complete characterization of the efficient equilibria of almost every such game is also given, along with an inefficiency result on the imperfect monitoring prisoner s dilemma.

Folk uses and pharmacological properties of Casearia sylvestris: a medicinal review

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Studies on the constituents of a Brazilian folk infusion. Isolation and structure elucidation of new triterpene saponins from Ilex amara leaves

The isolation of three new triterpene saponins 3beta-O-beta-D-glucopyranosyl-(1-->3)-alpha-L-2-O-acetylara-binopyranosylolean-12-en-28-oic acid 28-O-beta-D-glucopyranosyl ester (2), 3beta-O-beta-D-glucopyranosyl-(1-->2)-alpha-L-O-arabinopyranosylurs-12-en-28-oic acid (3), and 3beta-O-beta-D-glucopyranosyl-(1-->2)-beta-D-O-galactopyranosylurs-12-en-28-oic acid (4) together with five known saponins and one flavonoid glycoside from the aqueous infusion of flex amara (Vellozo) Loes. leaves is reported. All structures were elucidated by spectroscopic methods, including the concerted application of one-dimensional (H-1, TOCSY, C-13, and C-13 DEPT NMR) and two-dimensional NMR techniques (DQF-COSY, HSQC, and HMBC).

José Siqueira e o coco de embolada erudito: por uma performance etnomusicológica contemporânea

Pós-graduação em Música - IA

Reproductive toxicology and clastogenic evaluation in mice of a phytotherapeutic formulation obtained from Cinchona calisaya Weddel (Rubiaceae) used in Brazilian folk medicine as female fertility stimulant

Ethnopharmacological relevance: In Brazil, a phytotherapeutic preparation produced from a standardized tincture of Cinchona calisaya Weddel such that each mL of product contains 400 mu g of quinine, known in Portuguese as Agua Inglesa (R) (English water), is indicated by the manufacturer as a tonic, appetite stimulant, and digestive. However, this preparation has long been used in folk medicine as a female fertility stimulant. Despite its widespread use in folk medicine to stimulate female fertility, no study has been undertaken to assess the potential teratogenic and genotoxic effects of this phytotherapeutic preparation. The aim of the present study was to investigate possible toxic reproductive effects in mice caused by exposure to Agua Inglesa (R), either before mating or during the pre- and post-embryo implantation periods. The genotoxic potential was evaluated using the micronucleus assay.Material, Methods, and Results: Virgin female mice, with at least one estrous cycle evidenced by vaginal cytology, were divided into five groups of 15 individuals each (Group I - control, Group II - treated with ethanol solution at 16%, Groups III, IV and V treated with phytotherapeutic preparation at 1.5 mL/kg/day, 3.0 mL/kg/day and 4.5 mL/kg/day, respectively). After the first 28 days of treatment, females were caged individually with adult fertile males. Pregnant females continued to receive treatment for seven days (preimplantation period). Body weight was recorded weekly during treatment. Signs of toxicity (weight loss, food intake, piloerection, apathy, prostration, diarrhea, seizures, behavioral changes, and locomotion) were also observed. The females were sacrificed on the 15th day of pregnancy, uterine horns were evaluated for implantation, and the placental index was recorded. In the micronucleus test, 2000 polychromatic erythrocytes (PCE) per animal, obtained from bone marrow, were scored. Results The results showed that exposure of the females during the pre- and post-implantation periods did not significantly alter the reproductive capacity (p < 0.05); however, in higher dose (three times human dose)reduction of fetal weight was observed. There was no difference between the control and phytotherapeutic preparation (p > 0.05) in terms of the average number of micronucleated polychromatic erythrocytes.Conclusions: Although folk medicine suggests that the Agua Inglesa (R) preparation is useful as a female fertility stimulant, no such effect was confirmed in mice. (C) 2014 Elsevier Ireland Ltd. All rights reserved.

Canto em marcha: música folk e direitos civis nos Estados Unidos (1945-1960)

Pós-graduação em História - FCHS

Are biological species and higher-ranking categories real? Fish folk taxonomy on Brazil`s Atlantic Forest coast and in the Amazon

Analysis of Brazilian fishers` classifications of 24 marine (Atlantic coast) and 24 freshwater (Amazon) fish species reveals that fishers from the Atlantic coast identify fish mainly through generic names (primary lexemes), while riverine Amazonian fishers typically identify them through binomials. The similarity of Amazonian fish species seems to contribute to the detailed folk taxonomy used by riverine fishers. High-ranking groups called ""relatives"" or ""cousins"" are sorted by fishers in terms of similarities of habitat, diet, and morphology and, secondarily, behavior. The general correspondence between the folk and scientific taxonomies reinforces the reality of both the supracategories used by these fishers and the biological groups as discontinuities in nature. Given the urgency of biological inventories and the lack of knowledge of high-biodiversity environments such as the Atlantic Forest and the Amazon, these results suggest that fisher knowledge and experience could contribute to scientific research.

"Canzoni per l'America: gli Stati Uniti e le sue genti attraverso la musica folk"

Riassunto Il nostro viaggio attraverso la musica folk americana partirà dal un racconto della Grande Depressione, dello stato di indigenza nel quale versava la maggior parte della popolazione e attraverso le vicende e le canzoni del nonno della canzone di protesta: Woody Guthrie. Sottolineeremo come egli abbia influenzato successivamente tutta una serie di cantautori che si formarono con lui, attraverso i suoi scritti o i suoi pezzi. Vedremo dunque come un altro grande musicista, Pete Seeger lottò più volte contro la censura per dare risonanza a tante battaglie altrimenti inascoltate, come i movimenti per i diritti civili degli afroamericani e per la pace. Con le canzoni di Bob Dylan analizzeremo i movimenti giovanili e pacifisti contro la guerra nel Vietnam e i fermenti della beat generation. Considereremo con Bruce Springsteen i nuovi diseredati della recessione economica, la nuova ondata di nazionalismi, le censure successive agli attentati dell’ 11 Settembre 2001 e il nuovo ordine mondiale. La musica folk continuerà dunque a vivere grazie alla comunità che la rende viva e la fa circolare, ma soprattutto, grazie al passaggio di testimone tra i grandi artisti che l’hanno resa concretamente la voce dell’America.

Colour Symbolism, Colour Preference in Hungarian Folklore and Folk Architecture"

The Hungarian way of decoration has certain characteristics which are rooted in the deep symbolism of ancient Hungarian mythical thinking. The ancient heritage of the Hungarians' former homeland somewhere in the Urals included eastern elements. During their migrations, the Hungarian tribes met other eastern peoples and their culture of decoration became mixed with elements drawn from these new contacts. These diverse influences mean that the Hungarian way of thinking, building and ornamentation show a certain dualism of Puritanism and rationalism in the creation of space and manufacturing, and rich fantasy in decoration and ornamentation. The Hungarians use coloured ornamentation to emphasise the symbolic importance of details. The colouring system of the built environment shows the same dualism: the main colour of the facades and inner walls is white, while the furniture, textiles, gates and windows, and sometimes the gable and fireplace are richly decorated. In Hungarian symbolism, the house and settlement are a model of the universe, so their different parts also have a transcendent meaning. The traditional meanings of the different colours reflect this transcendence. Each colour has ambivalent meanings: RED - the colour of blood - means violence and love. YELLOW - means sickness, death and ripeness (golden yellow). BLUE - means innocence, eternity (light blue) and old age, death (dark blue). BLACK - can be both ceremonial and mourning. WHILE - can have sacred meaning (bright white), while yellowish white fabric is the most common garb of both men and women in village society. GREEN - the only colour without a dual meaning, symbolises the beginning of life. Until the late 18th and early 19th centuries Hungarian folk art used one or two-coloured decoration (red, black, blue, red-blue or red-black), and from the early 19th century it moved to multi-coloured decoration. Colours are characteristically used in complementary contrast, with bright colours on a plain ground and an avoidance of subtle shadings.

Challenging Folk Icons - Rewriting Woody and Santeri

Woody Guthrie’s song, “The 1913 Massacre,” written around 1940-41, has become something of a folk anthem for progressives, leftists, and labor supporters. It depicts the Italian Hall Disaster of December 24, 1913, in a plainspoken and colorful way, but has been (rightfully) described as “deeply flawed historically.” Much like Guthrie’s English-language folk songs, Finnish immigrant Santeri Mäkelä had a major impact on capturing the working-world around him. Mäkelä’s lyrics for the “Kaivantomiehen Laulu (The Miners’ Song)” were first published in Hancock, 1909, in “Uusi Työväen Laulukirja (The New Workers’ Songbook),” and was probably sung widely by Finnish strikers during the 1913-14 Michigan Copper Strike. Leading up to, and during this Strike Centennial year, there have been renewed performances of the song, both in Finland and the United States—but only in the original Finnish language. This presentation will delve into the accuracy, history, and lyrics of these two important, but historically problematic labor songs.