Water relations of tree species growing on a rock outcrop in the "Parque Estadual de Itapuã", RS

Water relations of the tree species Myrsine umbellata Mart. ex A. DC., Dodonaea viscosa Jacq. and Erythroxylum argentinum O. E. Schulz, growing on a rock outcrop in the "Parque Estadual de Itapuã" (RS), were studied. Environmental (precipitation, temperature, soil water) and plant (water potential, vapor pressure deficit, stomatal conductance, transpiration, leaf specific hydraulic conductance, osmotic potential and cell wall elasticity) parameters were collected in five periods and pooled into two sets of data: wet and dry periods. Myrsine umbellata showed great stability of the plant parameters, including the maintenance of high pre-dawn (psiwpd) and mid-day (psiwmd) water potentials in the dry period (-0.48 and -1.12 MPa, respectively), suggesting the presence of a deep root system. Dodonaea viscosa and E. argentinum reached lower psiwpd (-1.41 and -1.97 MPa, respectively) and a greater degree of stomatal closure in the dry period, suggesting a shallower root system. Differential exposure to soil drought was also corroborated by differential drought effects on the whole-plant leaf specific hydraulic conductance (Gt). Correlation analysis pointed to weak correlations between psiwpd and g s. Erythroxylum argentinum was the only species to show osmotic adjustment in response to drought. It is suggested that M. umbellata has low tolerance to water deficits, adopting an avoidance behavior. The much lower values of psiw reached by D. viscosa and E. argentinum suggest a greater tolerance to drought by these species.

Espécies de Parmotrema (Parmeliaceae, Ascomycota) do litoral Centro-Sul do Estado de São Paulo IV.: grupo químico protocetrárico

O levantamento das espécies pertencentes aos gêneros de grandes parmélias do litoral Centro-Sul do Estado de São Paulo revelou a ocorrência de onze espécies de Parmotrema sensu stricto (talos foliosos de lobos arredondados em geral com mais de 0,5 cm de largura com margens inferiores não rizinadas) contendo ácido protocetrárico como principal constituinte químico medular. São apresentados uma chave de identificação, descrições, comentários e ilustrações.

Kertomuksia Suomen historiasta - IV - Ensimmäinen osa, Ruotsin mahtawuuden aikakausi, Kustaa Aadolfin ja Kristiinan hallitus

Nimiösivulla myös: Warustettu 19:llä kuwalla.

Geographiske chartor öfwer Swerige med hans maj. konung Gustaf IV Adolphs allernådigste tillstånd utgifne af friherre S. G. Hermelin. [Kartta-aineisto] Andra Afdelningen, Storfurstendömet Finland.

Karttalehdet: Charta öfwer Swerige med tilgränsande länder ; Charta öfwer Storfurstendömet Finland ; Charta öfver Åbo och Björneborgs höfdingedöme ; Charta öfver Wasa höfdingedöme ; Charta öfver Uleåborgs höfdingedöme ; Charta öfver Savolax och Karelens eller Kuopio höfdingedöme ; Charta öfver Nylands och Tavastehus samt Kymmenegårds höfdingedömen. Nimiösivun kuva: Utsigt ifrån Wermasvuori åt sjöarne Jokijärvi och Ilmolanselkä uti Hauho sockn i Nylands och Tavastehus höfdingedöme / ritad af C. P. Hällström ; graverad af J. F. Martin.

Gallia IV : nova tabula : Francia

Julkaisussa: Geographia universalis, vetus et nova, complectens Claudii Ptolemaei Alexandrini enarrationis libros VIII

Tabulae Peutingerianae segmentum III : a Marcomannis ad Sarmatas usque ; Segmentum IV : a Sarmatis usque ad Hamaxobios

Julkaisussa: Accuratissima orbis antiqui delineatio, sive, geographia vetus, sacra & profana

Incidence of type 1 diabetes mellitus in Passo Fundo, RS, Brazil

To establish the incidence of type 1 diabetes among children (infants to 14 years of age) in the city of Passo Fundo, Rio Grande do Sul, Brazil (population under 15 years = 50,098), during the period of January to December 1996, a retrospective and prospective population-based registry was established, using physician reports of newly diagnosed patients under 15 years of age with type 1 diabetes as the primary source of case identification. Primary and nursery schools and a general call through the media (newspapers, radio and television) was the secondary source. Data were calculated according to the methods recommended by the WHO (1990). Six new cases were identified. Case ascertainment was estimated at 100%. The incidence of type 1 diabetes in the year 1996 was 12/100,000 inhabitants. These data indicate that the incidence of childhood type 1 diabetes in a subtropical region in the Southern part of Brazil was similar to that observed in developed countries throughout the world. The inability to demonstrate the North-South gradient is probably due to the European origin of inhabitants of the city.

Karta öfver Kung Karls Land upprättad under 1898 års svenska polarexpedition

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Karta öfver Van Mijens Bay och Belsund upprättad under 1898 års svenska polarexpedition under A.G. Nathorst

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Breviarium Fratrum Praedicatorum (MS C.IV.10)

Two probably originally distinct but roughly contemporary books (I-II, copied by three scribes, A-C): A psalter and a Dominican breviary. Complete critical and codicological description of the book and its contents available in the Codices Fennici -database.

Contents: I: Psalter: Fols. 7r–76va, Psalter, with additional hymns, concluding with Te Deum; Fols. 76vb–77vb, the Athanasian Creed; Fols. 77vb–80v, litany and other prayers. II: Dominican breviary: Fols. 1r–6v, English Dominican calendar (Jan.–Dec.); Fols. 81r–242v, 276r–312r, proprium de tempore (defect), from the First Advent to the First Sunday after Trinity, and from septuagesima in mensis Augusti to the 25th Sunday after Trinity; Fols. 313ra–318v, Office for the dedication of a church; Fols. 243r–275v, 319r–334v, 353r–v, 335r–352v, 354r–371r, proprium de sanctis (defect), from the beginning up to the office of Mary Magdalene, with a misplaced leaf, fol. 353, at translatio B. Dominici, and, after several missing gatherings, the end of commune sanctorum; Fol. 371v, originally empty, with office for St Ursula added in a saec. XIV hand.

The brain decade in debate: IV. Chronobiology

The present article is the adapted version of an electronic symposium organized by the Brazilian Society of Neuroscience and Behavior (SBNeC) which took place on June 14, 2000. The text is divided into three sections: I. The main issues, II. Chronodrugs, and III. Methods. The first section is dedicated to the perspectives of chronobiology for the next decade, with opinions about the trends of future research being emitted and discussed. The second section deals mostly with drugs acting or potentially acting on the organism's timing systems. In the third section there are considerations about relevant methodological issues concerning data analysis.

Sec61alpha synthesis is enhanced during translocation of nascent chains of collagen type IV in F9 teratocarcinoma cells after retinoic acid treatment

Nascent procollagen peptides and other secretory proteins are transported across the endoplasmic reticulum (ER) membrane through a protein-conducting channel called translocon. Sec61alpha, a multispanning membrane translocon protein, has been implicated as being essential for translocation of polypeptide chains into the cisterns of the ER. Sec61alpha forms a protein complex with collagen and Hsp47, an ER-resident heat shock protein that binds specifically to collagen. However, it is not known whether Sec61alpha is ubiquitously produced in collagen-producing F9 teratocarcinoma cells or under heat shock treatment. Furthermore, the production and utilization of Sec61alpha may depend on the stage of cell differentiation. Cultured F9 teratocarcinoma cells are capable of differentiation in response to low concentrations of retinoic acid. This differentiation results in loss of tumorigenicity. Mouse F9 cells were grown in culture medium at 37ºC and 43ºC (heat shock treatment) treated or not with retinoic acid, and labeled in certain instances with 35S-methionine. Membrane-bound polysomes of procollagen IV were then isolated. Immunoprecipitation and Western blot analysis were performed using polyclonal antibodies against collagen IV, Hsp47 and Sec61alpha. Under retinoic acid-untreated conditions, F9 cells produced undetectable amounts of Sec61alpha. Sec61alpha, Hsp47 and type IV collagen levels were increased after retinoic acid treatment. Heat shock treatment did not alter Sec61alpha levels, suggesting that Sec61alpha production is probably not affected by heat shock. These data indicate that the enhanced production of Sec61alpha in retinoic acid-induced F9 teratocarcinoma cells parallels the increased synthesis of Hsp47 and collagen type IV.

Dipeptidyl peptidase IV (CD26) activity in the hematopoietic system: differences between the membrane-anchored and the released enzyme activity

Dipeptidyl peptidase IV (DPP-IV; CD26) (EC 3.4.14.5) is a membrane-anchored ectoenzyme with N-terminal exopeptidase activity that preferentially cleaves X-Pro-dipeptides. It can also be spontaneously released to act in the extracellular environment or associated with the extracellular matrix. Many hematopoietic cytokines and chemokines contain DPP-IV-susceptible N-terminal sequences. We monitored DPP-IV expression and activity in murine bone marrow and liver stroma cells which sustain hematopoiesis, myeloid precursors, skin fibroblasts, and myoblasts. RT-PCR analysis showed that all these cells produced mRNA for DPP-IV. Partially purified protein reacted with a commercial antibody to CD26. The K M values for Gly-Pro-p-nitroanilide ranged from 0.43 to 0.98 mM for the membrane-associated enzyme of connective tissue stromas, and from 6.76 to 8.86 mM for the enzyme released from the membrane, corresponding to a ten-fold difference, but only a two-fold difference in K M was found in myoblasts. K M of the released soluble enzyme decreased in the presence of glycosaminoglycans, nonsulfated polysaccharide polymers (0.8-10 µg/ml) or simple sugars (320-350 µg/ml). Purified membrane lipid rafts contained nearly 3/4 of the total cell enzyme activity, whose K M was three-fold decreased as compared to the total cell membrane pool, indicating that, in the hematopoietic environment, DPP-IV activity is essentially located in the lipid rafts. This is compatible with membrane-associated events and direct cell-cell interactions, whilst the long-range activity depending upon soluble enzyme is less probable in view of the low affinity of this form.

Ethnographisk kart over Finmarken n:o 1 : præstegjældene : I Vardö, II Vadsö, og en deel af III Næsseby og IV Lebesby

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan