Sugli epigrammi latini del Petrarca

[IT] Un gruppo di tre manoscritti trasmette una piccola e assai curiosa collezione di epigrammi latini del Petrarca: a proposito di una recente edizione di alcuni di essi (F. Petrarca, Gabbiani, ed. F. Rico, Milano, Adelphi, 2008), in questo articolo vengono illustrati vari aspetti testuali che potrebbero essere rilevanti per determinare l���origine controversa della tradizione degli epigrammi.

Soviet-American Cooperative Research on Marine Mammals. Volume 1- Pinnipeds: Under Project V.6. Marine Mammals, of the US-USSR Agreement on Cooperation in the Field of Environmental Protection

Some 25 to 30 yr ago, when we as students were beginning our respective careers and were developing for the first time our awareness of marine mammals in the waters separating western North America from eastern Asia, we had visions of eventually bridging the communication gap which existed between our two countries at that time. Each of us was anxious to obtain information on the distribution, biology, and ecological relations of "our" seals and walruses on "the other side," beyond our respective political boundari~s where we were not permitted to go to study them. We were concerned that the resource management practices on the other side of the Bering and Chukchi Seas, implemented in isolation, on a purely unilateral basis, might endanger the species which we had come to know and were striving to conserve. At once apparent to both of us was the need for free exchange of biological information between our two countries and, ultimately, joint management of our shared resources. In a small way, we and others made some initial efforts to generate that exchange by personal correspondence and through vocal interchange at the annual meetings of the North Pacific Fur Seal Commission. By the enabling Agreement on Cooperation in the Field of Environmental Protection, reached between our two countries in 1972, our earlier visions at last came true. Since that time, within the framework of the Marine Mammal Project under Area V of that Agreement, we and our colleagues have forged a strong bond of professional accord and respect, in an atmosphere of free intercommunication and mutual understanding. The strength and utility of this arrangement from the beginning of our joint research are reflected in the reports contained in this, the first compendium of our work. The need for a series of such a compendia became apparent to us in 1976, and its implementation was agreed on by the regular meeting of the Project in La Jolla, Calif., in January 1977. Obviously, the preparation and publication of this first volume has been excessively delayed, in part by continuing political distrust between our governments but mainly by increasing demands placed on the time of the contributors. In this period of growing environmental concern in both countries, we and our colleagues have been totally immersed in other tasks and have experienced great difficulty in drawing together the works presented here. Much of the support for doing so was provided by the State of Alaska, through funding for Organized Research at the University of Alaska-Fairbanks. For its ultimate completion in publishable form we wish to thank Helen Stockholm, Director of Publications, Institute of Marine Science, University of Alaska, and her staff, especially Ruth Hand, and the numerous referees narned herein who gave willingly oftheir time to review each ofthe manuscripts critically and to provide a high measure of professionalism to the final product. (PDF file contains 110 pages.)

Proceedings of the International Workshop on age determination of oceanic pelagic fishes: Tunas, billfishes, and sharks, Miami, Florida, February 15-18,1982

Accurate and precise estimates of age and growth rates are essential parameters in understanding the population dynamics of fishes. Some of the more sophisticated stock assessment models, such as virtual population analysis, require age and growth information to partition catch data by age. Stock assessment efforts by regulatory agencies are usually directed at specific fisheries which are being heavily exploited and are suspected of being overfished. Interest in stock assessment of some of the oceanic pelagic fishes (tunas, billfishes, and sharks) has developed only over the last decade, during which exploitation has increased steadily in response to increases in worldwide demand for these resources. Traditionally, estimating the age of fishes has been done by enumerating growth bands on skeletal hardparts, through length frequency analysis, tag and recapture studies, and raising fish in enclosures. However, problems related to determining the age of some of the oceanic pelagic fishes are unique compared with other species. For example, sampling is difficult for these large, highly mobile fishes because of their size, extensive distributions throughout the world's oceans, and for some, such as the marlins, infrequent catches. In addition, movements of oceanic pelagic fishes often transect temperate as well as tropical oceans, making interpretation of growth bands on skeletal hardparts more difficult than with more sedentary temperate species. Many oceanic pelagics are also long-lived, attaining ages in excess of 30 yr, and more often than not, their life cycles do not lend themselves easily to artificial propagation and culture. These factors contribute to the difficulty of determining ages and are generally characteristic of this group-the tunas, billfishes, and sharks. Accordingly, the rapidly growing international concern in managing oceanic pelagic fishes, as well as unique difficulties in ageing these species, prompted us to hold this workshop. Our two major objectives for this workshop are to: I) Encourage the interchange of ideas on this subject, and 2) establish the "state of the art." A total of 65 scientists from 10 states in the continental United States and Hawaii, three provinces in Canada, France, Republic of Senegal, Spain, Mexico, Ivory Coast, and New South Wales (Australia) attended the workshop held at the Southeast Fisheries Center, Miami, Fla., 15-18 February 1982. Our first objective, encouraging the interchange of ideas, is well illustrated in the summaries of the Round Table Discussions and in the Glossary, which defines terms used in this volume. The majority of the workshop participants agreed that the lack of validation of age estimates and the means to accomplish the same are serious problems preventing advancements in assessing the age and growth of fishes, particularly oceanic pelagics. The alternatives relating to the validation problem were exhaustively reviewed during the Round Table Discussions and are a major highlight of this workshop. How well we accomplished our second objective, to establish the "state of the art" on age determination of oceanic pelagic fishes, will probably best be judged on the basis of these proceedings and whether future research efforts are directed at the problem areas we have identified. In order to produce high-quality papers, workshop participants served as referees for the manuscripts published in this volume. Several papers given orally at the workshop, and included in these proceedings, were summarized from full-length manuscripts, which have been submitted to or published in other scientific outlets-these papers are designated as SUMMARY PAPERS. In addition, the SUMMARY PAPER designation was also assigned to workshop papers that represented very preliminary or initial stages of research, cursory progress reports, papers that were data shy, or provide only brief reviews on general topics. Bilingual abstracts were included for all papers that required translation. We gratefully acknowledge the support of everyone involved in this workshop. Funding was provided by the Southeast Fisheries Center, and Jack C. Javech did the scientific illustrations appearing on the cover, between major sections, and in the Glossary. (PDF file contains 228 pages.)

La seguridad social del empleo dom��stico : evoluci��n y perspectivas

482 p.

Small-scale commercial production of tilapia fry and fingerlings in concrete raceways

This paper discusses the investment prospects in Tilapia fry and fingerling production in raceways created from the concrete drainage channel of a reservoir or pond of an existing fish farm in Nigeria. With an initial capital of 1,300 and an annual operating cost of 310 spent on procurement of fish feed and brood stock for a 10 m super(2) raceway per se, a net profit of 4,100 and 5,090 would be realized from Sarotherodon galilaeus in the first year and subsequent years of production respectively, assuming that the fingerling production rate has been maintained through the production period. It is concluded that the application of this approach of optimizing the use of available resources in the fish farm for the productive breeding of Tilapia fry and fingerlings will apart from alleviating the problem of scarcity of stocking materials in the country, increase the profit margin accruing to the fish farmer

Textos antiguos vascos en Internet

Bilbao, Gidor y Ricardo G��mez, ��Textos antiguos vascos en Internet��, en Humanidades Digitales: desaf��os, logros y perspectivas de futuro, Sagrario L��pez Poza y Nieves Pena Sueiro (editoras), Janus [en l��nea], Anexo 1 (2014), 111-121, publicado el 11/04/2014, consultado el 12/04/2014. URL: <http://www.janusdigital.es/anexos/contribucion.htm?id=11>.

Identifica����o de ��reas sob maior risco para leishmaniose visceral na cidade de Teresina, Piau��, Brasil

O prop��sito desta Tese foi detectar e caracterizar ��reas sob alto risco para leishmaniose visceral (LV) e descrever os padr��es de ocorr��ncia e difus��o da doen��a, entre os anos de 1993 a 1996 e 2001 a 2006, em Teresina, Piau��, por meio de m��todos estat��sticos para an��lise de dados espaciais, sistemas de informa����es geogr��ficas e imagens de sensoriamento remoto. Os resultados deste estudo s��o apresentados na forma de tr��s manuscritos. O primeiro usou an��lise de dados espaciais para identificar as ��reas com maior risco de LV na ��rea urbana de Teresina entre 2001 e 2006. Os resultados utilizando raz��o de kernels demonstraram que as regi��es perif��ricas da cidade foram mais fortemente afetadas ao longo do per��odo analisado. A an��lise com indicadores locais de autocorrela����o espacial mostrou que, no in��cio do per��odo de estudo, os agregados de alta incid��ncia de LV localizavam-se principalmente na regi��o sul e nordeste da cidade, mas nos anos seguintes os eles apareceram tamb��m na regi��o norte da cidade, sugerindo que o padr��o de ocorr��ncia de LV n��o �� est��tico e a doen��a pode se espalhar ocasionalmente para outras ��reas do munic��pio. O segundo estudo teve como objetivo caracterizar e predizer territ��rios de alto risco para ocorr��ncia da LV em Teresina, com base em indicadores socioecon��micos e dados ambientais, obtidos por sensoriamento remoto. Os resultados da classifica����o orientada a objeto apontam a expans��o da ��rea urbana para a periferia da cidade, onde antes havia maior cobertura de vegeta����o. O modelo desenvolvido foi capaz de discriminar 15 conjuntos de setores censit��rio (SC) com diferentes probabilidades de conterem SC com alto risco de ocorr��ncia de LV. O subconjunto com maior probabilidade de conter SC com alto risco de LV (92%) englobou SC com percentual de chefes de fam��lia alfabetizados menor que a mediana (&#8804;64,2%), com maior ��rea coberta por vegeta����o densa, com percentual de at�� 3 moradores por domic��lio acima do terceiro quartil (>31,6%). O modelo apresentou, respectivamente, na amostra de treinamento e valida����o, sensibilidade de 79% e 54%, especificidade de 74% e 71%, acur��cia global de 75% e 67% e ��rea sob a curva ROC de 83% e 66%. O terceiro manuscrito teve como objetivo avaliar a aplicabilidade da estrat��gia de classifica����o orientada a objeto na busca de poss��veis indicadores de cobertura do solo relacionados com a ocorr��ncia da LV em meio urbano. Os ��ndices de acur��cia foram altos em ambas as imagens (>90%). Na correla����o da incid��ncia da LV com os indicadores ambientais verificou-se correla����es positivas com os indicadores Vegeta����o densa, Vegeta����o rasteira e Solo exposto e negativa com os indicadores ��gua, Urbana densa e Urbana verde, todos estatisticamente significantes. Os resultados desta tese revelam que a ocorr��ncia da LV na periferia de Teresina est�� intensamente relacionada ��s condi����es socioecon��micas inadequadas e transforma����es ambientais decorrentes do processo de expans��o urbana, favorecendo a ocorr��ncia do vetor (Lutzomyia longipalpis) nestas regi��es.

Seasonal variation in the diurnal periodicity of activity of the perch, Perca fluviatilis L. [Translation from: Kalamies 1973(3) 3.]

The most common catch of the amateur angler is the perch and it is the diurnal periodicity of activity (& catchability) which is examined in this study based on earlier articles and manuscripts by the authors. Of all environmental factors, variation in light and temperature are the chief reasons in establishing the times of activity periods. Winter, summer and autumn activity was studied. The spawning perch was found to be more active than the non-spawning perch. The time of day in which the fish may be active is dependant on its ability to sense changes in the external environment. Its adaptation to light is the reason for day-activity in the winter, and also accounts for the fact that hardly any activity occurs between sunset and sunrise when this period exceeds 6 hours.

Prescription for optimizing holograms in LiNbO3 : Fe : Mn

The photorefractive holographic dynamics of grating formation in photochromic doubly doped LiNbO3:Fe:Mn crystal is studied numerically and analytically in terms of the two-center model of Kukhtarev Et al. [Ferroelectrics 22, 949 (1979)]. The relations among the recorded and fixed space-charge fields and the doping densities, the oxidation-reduction states of the fields, and the intensities of UV-sensitizing and red recording beams are studied. Important conditions and effects are feued, and an optimal prescription for material doping and oxidation-reduction processing is suggested in which the crystal can be strongly oxidized and the Mn-doping density is smaller than the Fe-doping density. (C) 2000 Optical Society of America. OCIS codes: 050.7330, 190.5330, 090.2900.

Nonvolatile photorefractive holograms in LiNbO3 : Cu : Ce crystals

We report experimental and theoretical studies of nonvolatile photorefractive holographic recording in LiNbO3:Cu:Ce crystals with two illumination schemes: (1) UV light for sensitization and a red interfering pattern for recording and (2) blue light for sensitization and a red pattern for recording. The results show that the oxidized LiNbO3:Cu:Ce crystals can provide high, persistent refractive-index modulation with weak lightinduced scattering. The optimal working conditions and the prescription for doping and oxidation-reduction processing that yields the maximum refractive-index modulation are discussed. (C) 2000 Optical Society of America OCIS codes: 050.7330, 190.5330, 090.2900.

Development of a sampling expert system:"FISHMAP"

This research program consisted of three major component areas: (I) development of experimental design, (II) calibration of the trawl design, and (III) development of the foundation for stock assessment analysis. The products which have I. EXPERIMENTAL DESIGN resulted from - the program are indicated below: The study was successful in identifying spatial and temporal distribution characteristics of the several key species, and the relationships between given species catches and environmental and physical factors which are thought to influence species abundance by areas within the mainstem of the Chesapeake Bay and tributaries

Does rating shopping exist in spanish securitization issues?

[EN] Debt issue credit ratings can lead to conflicts of interest as the issuer itself is entrusted with contracting and compensating the rating agency. Into the bargain, the credit rating agency may be involved in designing the issues that the same agency subsequently rates. Credit rating agencies thus could have incentives to rate issues advantageously. Given the economic importance of this issue, in this paper we have proposed to analyze this phenomenon, known as rating shopping in academic literature, for Spanish market securitization issues for the period of time comprehensive from January 1993 to December 2011. In sum 3,665 published ratings are been analysed, for an issued nominal amount of 791,090 million Euros. The results show an association between the credit rating agency contracted and the mean rating awarded. Significant differences are observed in the ratings associated to the contracting manager (or special purpose vehicle SPV- manager firm), to the number of ratings or to the type of collateral. Furthermore, a pattern compatible with rating shopping was observed for some types of collateral: abnormally high market shares associated with certain agencies awarding unusually generous ratings. However, this phenomenon is not seen to be widespread on the rating market associated to Spanish securitization issues.

Evolu����o da obesidade e do consumo alimentar de 1995 a 2005 em mulheres de 35 anos ou mais do Munic��pio do Rio de Janeiro

A presente tese engloba dois manuscritos que abordam o tema Consumo alimentar em mulheres, desenvolvidos atrav��s da an��lise de duas pesquisas realizadas no Munic��pio do Rio de Janeiro, em 1995 e 2005. Trata-se do primeiro estudo brasileiro de base populacional que avalia a tend��ncia de consumo utilizando dados individuais de consumo alimentar. O grupo espec��fico analisado: mulheres com 35 anos ou mais de idade, apresenta as maiores preval��ncias de obesidade. O primeiro manuscrito intitulado Ten-year increase in the prevalence of obesity among Brazilian women was associated to reduction of fat intake mainly among the less educated aborda a preval��ncia da obesidade e consumo de energia e macronutrientes. Os resultados indicam importante aumento da preval��ncia de obesidade (16% para 24%) acompanhada de aumento significativo do consumo cal��rico e redu����o da ingest��o de lip��dios e colesterol. Na pesquisa mais recente a associa����o negativa entre educa����o e obesidade foi de maior magnitude e a renda deixou de associar-se a preval��ncia de obesidade. O segundo manuscrito intitulado Mudan��as no consumo de alimentos entre mulheres do Munic��pio do Rio de Janeiro, de 1995 a 2005 avaliou o consumo de alimentos, incluindo os de alta densidade energ��tica, e grupos de alimentos nos dois momentos, incluindo a avalia����o das diferen��as de consumo segundo escolaridade. A an��lise do consumo mostrou aumento do consumo de alimentos cal��ricos como doces, biscoitos e ling��i��a e redu����o de importantes grupos de alimentos como frutas, leite, feij��o, ra��zes e tub��rculos e carnes no per��odo de dez anos. As mulheres com maior escolaridade apresentaram maior redu����o de consumo de carnes e frutas e n��o apresentaram redu����o de peixes e derivados do leite. Adicionalmente, participei como co-autora em um artigo, tamb��m baseado na pesquisa mais recente, que avaliou a associa����o entre o uso de rem��dios/ch��s para emagrecer e a concentra����o s��rica do horm��nio estimulador da tire��ide (TSH), intitulado TSH levels associated with slimming pill use in a population based study of Brazilian women. Essa an��lise mostrou alta preval��ncia de uso dessas subst��ncias e revelaram que os teores s��ricos de TSH foram significativamente menores entre as usu��rias de rem��dios/ch��s para emagrecer.

Encoded cell grating array in anti-counterfeit technology

The dot matrix hologram (DMH) has been widely used in anti-counterfeiting label. With the same technology and cell array configuration, we can encode to the incidence beam. These codes can be some image matrix grating with different grating gap and different grating orientation. When the multi-level phase diffractive grating is etched, the incidence beam on the cell appears as an encoding image. When the encoded grating and DMH are used in the same label synchronously, the technology of multi-encoded grating array enhances the anti-counterfeit ability.

A wideband sensitive holographic photopolymer

A novel wideband sensitive dry holographic photopolymer sensitized by rose bengal (RB) and methylene blue (MB) is fabricated, the holographic storage characteristics of which are investigated under different exposure wavelengths. The result shows that the sensitive spectral band exceeds 200 nm in visible light range, the maximum diffraction efficiency under different exposure wavelengths is more than 40% and decreases with the decrease of exposure wavelength, the exposure sensitivity is not change with the exposure wavelength. This photopolymer is appropriate for wavelength multiplexing or multi-wavelength recording in digital holographic storage.