Reconstructions of past climates from documentary and natural sources in Finland since the 18th century

In this paper both documentary and natural proxy data have been used to improve the accuracy of palaeoclimatic knowledge in Finland since the 18th century. Early meteorological observations from Turku (1748-1800) were analyzed first as a potential source of climate variability. The reliability of the calculated mean temperatures was evaluated by comparing them with those of contemporary temperature records from Stockholm, St. Petersburg and Uppsala. The resulting monthly, seasonal and yearly mean temperatures from 1748 to 1800 were compared with the present day mean values (1961-1990): the comparison suggests that the winters of the period 1749-1800 were 0.8 ºC colder than today, while the summers were 0.4 ºC warmer. Over the same period, springs were 0.9 ºC and autumns 0.1 ºC colder than today. Despite their uncertainties when compared with modern meteorological data, early temperature measurements offer direct and daily information about the weather for all months of the year, in contrast with other proxies. Secondly, early meteorological observations from Tornio (1737-1749) and Ylitornio (1792-1838) were used to study the temporal behaviour of the climate-tree growth relationship during the past three centuries in northern Finland. Analyses showed that the correlations between ring widths and mid-summer (July) temperatures did not vary significantly as a function of time. Early (June) and late summer (August) mean temperatures were secondary to mid-summer temperatures in controlling the radial growth. According the dataset used, there was no clear signature of temporally reduced sensitivity of Scots pine ring widths to mid-summer temperatures over the periods of early and modern meteorological observations. Thirdly, plant phenological data with tree-rings from south-west Finland since 1750 were examined as a palaeoclimate indicator. The information from the fragmentary, partly overlapping, partly nonsystematically biased plant phenological records of 14 different phenomena were combined into one continuous time series of phenological indices. The indices were found to be reliable indicators of the February to June temperature variations. In contrast, there was no correlation between the phenological indices and the precipitation data. Moreover, the correlations between the studied tree-rings and spring temperatures varied as a function of time and hence, their use in palaeoclimate reconstruction is questionable. The use of present tree-ring datasets for palaeoclimate purposes may become possible after the application of more sophisticated calibration methods. Climate variability since the 18th century is perhaps best seen in the fourth paper study of the multiproxy spring temperature reconstruction of south-west Finland. With the help of transfer functions, an attempt has been made to utilize both documentary and natural proxies. The reconstruction was verified with statistics showing a high degree of validity between the reconstructed and observed temperatures. According to the proxies and modern meteorological observations from Turku, springs have become warmer and have featured a warming trend since around the 1850s. Over the period of 1750 to around 1850, springs featured larger multidecadal low-frequency variability, as well as a smaller range of annual temperature variations. The coldest springtimes occurred around the 1840s and 1850s and the first decade of the 19th century. Particularly warm periods occurred in the 1760s, 1790s, 1820s, 1930s, 1970s and from 1987 onwards, although in this period cold springs occurred, such as the springs of 1994 and 1996. On the basis of the available material, long-term temperature changes have been related to changes in the atmospheric circulation, such as the North Atlantic Oscillation (February-June).

Baron de Hirsch Fund records undated, 1870-1991.

Contains Deed of Trust, By-Laws, Annual Reports, Corporation Minutes (1909, 1913-1919, 1923-1924, 1926-1933), Minutes of the Board of Trustees (1893, 1899, 1907, 1910, 1915-1916, 1918, 1923, 1926-1927, 1930-1933), and the minutes, correspondence, and reports of the various national and local committees. Financial materials include income and expenditure records (1891-1933), audits (1919-1923, 1926-1928), the records of agricultural loans and mortgages, bond and real estate holdings, and bequests. Includes also correspondence and other materials regarding the establishment of the Fund, correspondence of and other papers concerning the Baron and Baroness de Hirsch, and several histories of the Fund. Included in the wide range of activities are material on the work of the Agriculture Bureau and the Jewish Agriculture Society, Housing, English Classes, Immigration (including monthly reports for several ports of entry 1885-1916) and Immigrant Aid, German Refugee Aid in the early years of the Holocaust, Kings Park, N.Y. Test Farm, the Laundry Project, Peekskill Farm, Public Baths, Student Loans, the Baron de Hirsch Trade School, and the Woodbine Colony and Baron De Hirsch Agricultural & Industrial School. Contains also materials on the Colonization attempts made in Colorado, Connecticut, Florida, Louisiana, Michigan, Minnesota, North Dakota, New Jersey, New York, Pennsylvania, South Dakota, Galveston, Texas, The Southwest, Washington, Canada, and Mexico.

Stammbaum der Familie Oppenheimer Laufenselden 1750-1936

Family history, family trees and genealogy of Oppenheimer family in Laufenselden and Nastaetten (75p).

El clero argentino durante la Revolución (1810- 1816) según las oraciones patrióticas : análisis de los casos de: Diego Zabaleta, Gregorio Funes, Francisco de Paula Castañeda y Pedro de Castro Barros

Resumen: El presente trabajo es un análisis individual de cada Oración Patriótica enunciada en el título. En cada una de ellas se destaca, como eje de estudio, el lenguaje utilizado y el orden dialéctico que cada personaje propone. El tiempo histórico en que cada uno de los discursos fue pronunciado es también analizado como relación directa a la naturaleza del mensaje. Se busca remarcar además la preeminencia que tuvo el clero criollo como uno de los actores sociales fundamentales del proceso revolucionario.

La Iglesia y el movimiento independentista rioplatense: incertidumbres, aceptación y acompañamiento (1810-1816)

En torno al sexenio comprendido entre las dos fechas distintivas del Bicentenario argentino, 1810 y 1816, el autor se propone una lectura histórica sobre los hombres y las ideas que rodearon a la Primera Junta de gobierno, la función propagandista del clero, el cuestionamiento por parte de dos obispos de la legitimidad de la revolución y el apoyo de un obispo patriota, el período de “interregno episcopal” y la continuidad religiosa, la obra cultural de la Junta y la celebración del Congreso de la Independencia en Tucumán. Se afirma, a partir de las fuentes, el lugar de aceptación que tuvo la IglesiaCatólica en esta época.

Collecção das Leis do Brazil de 1810

Parte 1 - Cartas de Lei, Alvarás, Decretos e Cartas Régias

Tratado de limites das conquistas entre os muito altos, e poderosos senhores D. João V, Rey de Portugal, e D. Fernando VI, Rey de Espanha, pelo qual abolida a demarcação da linha meridiana, ajustada no Tratado de Tordesilhas de 7 de junho de 1494, se determina individualmente a raya dos domínios de huma e outra corôa na America Meridional :a de Portugal renuncia o direito, que allegava ter das Ilhas Filippinas, pelo dito Tratado de Tordesilhas, e pela escritura de Saragoça de 22 de abril de 1529 ; e cede a Espanha a Colonia do Sacramento, e o Territorio da margem septentrional do Rio da Prata, que lhe pertencia pelo Tratado de Utrecht de 6 de fevereiro de 1715, como também a Aldea de S. Christóvão, e terras adjacentes, que tinhão occupado os portuguezes entre os rios Japurá, e Isa, que desaguão no das Amazonas; a de Espanha renuncia todo o direito, que pelo dito Tratado de Tordesilhas allegava ter as terras possuidas pelos portuguezes na America Meridional ao Occidente da Linha Meridiana, ajustada naquelle Tratado ; e cede a Portugal todas as terras, e povoações da margem oriental do rio Uruguay, desde o rio Ibicuí para o norte, e a aldea de Santa Rosa, e outra qualquer estabelecida pelos espanhoes na margem oriental do rio Guaporé; com os plenos-poderes, e ratificações dos dous Monarchas, assignado em Madrid a 13 de janeiro de 1750

Referência: Diccionario Bibliographico Portuguez / Innocencio Francisco da Silva, 1862. v. 7, p. 386.

Collecção da legislação portugueza : desde a ultima compilação das ordenações

"Com licença da meza do desembargo do Paço'

Thermodynamic and kinetic behavior of an argon plasma jet. Decomposition of nitric oxide between 1300 - 1750 degrees K in an argon plasma

In the first part of the study, an RF coupled, atmospheric pressure, laminar plasma jet of argon was investigated for thermodynamic equilibrium and some rate processes.

Improved values of transition probabilities for 17 lines of argon I were developed from known values for 7 lines. The effect of inhomogeneity of the source was pointed out.

The temperatures, T, and the electron densities, n_e , were determined spectroscopically from the population densities of the higher excited states assuming the Saha-Boltzmann relationship to be valid for these states. The axial velocities, v_z, were measured by tracing the paths of particles of boron nitride using a three-dimentional mapping technique. The above quantities varied in the following ranges: 10¹² ˂ n_e ˂ 10¹⁵ particles/cm³, 3500 ˂ T ˂ 11000 °K, and 200 ˂ v_z ˂ 1200 cm/sec.

The absence of excitation equilibrium for the lower excitation population including the ground state under certain conditions of T and n_e was established and the departure from equilibrium was examined quantitatively. The ground state was shown to be highly underpopulated for the decaying plasma.

Rates of recombination between electrons and ions were obtained by solving the steady-state equation of continuity for electrons. The observed rates were consistent with a dissociative-molecular ion mechanism with a steady-state assumption for the molecular ions.

In the second part of the study, decomposition of NO was studied in the plasma at lower temperatures. The mole fractions of NO denoted by x_NO were determined gas-chromatographically and varied between 0.0012 ˂ x_NO ˂ 0.0055. The temperatures were measured pyrometrically and varied between 1300 ˂ T ˂ 1750°K. The observed rates of decomposition were orders of magnitude greater than those obtained by the previous workers under purely thermal reaction conditions. The overall activation energy was about 9 kcal/g mol which was considerably lower than the value under thermal conditions. The effect of excess nitrogen was to reduce the rate of decomposition of NO and to increase the order of the reaction with respect to NO from 1.33 to 1.85. The observed rates were consistent with a chain mechanism in which atomic nitrogen and oxygen act as chain carriers. The increased rates of decomposition and the reduced activation energy in the presence of the plasma could be explained on the basis of the observed large amount of atomic nitrogen which was probably formed as the result of reactions between excited atoms and ions of argon and the molecular nitrogen.

"Substituir a revolução dos homens pela revolução do tempo" : uma história do conceito de povo no Brasil ; revolução e historicização da linguagem política (1750-1870)

A tese propõe uma linha de interpretação acerca da história do conceito de povo no debate político luso-brasileiro entre a segunda metade do século XVIII e últimas décadas do século XIX, sob uma perspectiva teórica que busca compreender o processo de historicização das linguagens e conceitos políticos como marca do mundo moderno. Procuramos traçar o processo de abalo e desmantelamento dos significados e usos tradicionais e a incorporação crescente da temporalidade histórica na semântica conceitual, fenômeno ocorrido em meio aos conflitos e debates políticos durante a formação, consolidação e crise do estado imperial brasileiro. Acreditamos que nestes anos houve uma acentuada historicizaçao do conceito de povo, processo que teve como marca seu crescente contingenciamento, isto é, sua maior fundamentação em diagnósticos da situação histórica presente, e também sua maior inserção em visões processuais e futuristas da história.

以树轮宽度重建九寨沟1750年以来冬半年平均最低温度

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