Chemical composition of zeolites in sandstones at DSDP Sites 445 and 446

Andesitic volcaniclastic sandstones of Middle Eocene age recovered from DSDP Sites 445 and 446, a back-arc basin, contain clinoptilolite, heulandite and analcite as a pore-filling cement. Clinoptilolite and heulandite at Sites 445 and 446 contain different chemical composition from other deep-sea clinoptilolites and heulandites. The dominant cation of both clinoptilolite and heulandite is Na+ ion activity in pore water was greater at the time of their formation. Volcanic glass has acted as a precursor for both clinoptilolite and heulandite at Sites 445 and 446. Biogenic silica is also suggested as a precursor. High Na+ ion activity in pore water also helped to transform clinoptilolite and heulandite to analcite downhole. The necessary Na+ ions for this clinoptilolite, heulandite and analcite at Sites 445 and 446 might have been provided by hydrothermal circulation of seawater through more permeable sandstones deposited during early stages of back-arc basin rifting.

Ley orgánica y reglamentaria de instrucción pública, reformada por los decretos números 3-193-268-295-297-301-312-333-432-445-469-604 y acuerdos gubernativos que figuran al fin.

Mode of access: Internet.

Unit, direct support, and general support maintenance repair parts and special tools lists : drill, pneumatic, drifter, boom-type, crawler-mounted, self-propelled (NSN 3820-00-445-3766), Joy model RAM-MS-5/450A-DR.

"May 1992."

Operator and organizational maintenance manual : drill, pneumatic, drifter, self-propelled, Joy model RAM-MS-5/450A-DR, FSN 3820-445-3766.

"July 1974."

Organizational maintenance manual : truck, cargo, 8 ton, 4 x 4, M520 w/winch (NSN 2320-00-873-5422) ... truck, tanker, fuel servicing, 2500 gallon, 4 x 4, M559 w/o winch (NSN 2320-00-445-7250).

"July 1977."

Direct support and general support maintenance manual for truck, cargo, 8 ton, 4 x 4, M520 w/winch (NSN 2320-00-873-5422) ... truck, tanker, fuel servicing: 2500 gallon, 4 x 4, M559 w/o winch (NSN 2320-00-445-7250).

Includes index.

Unit maintenance, repair parts and special tools lists : truck, cargo, 8 ton, 4x4, M520 w/winch, NSN 2320-00-873-5422 ... truck, tanker, fuel servicing: 2500 gallon, 4x4, M559 w/o winch, NSN 2320-00-445-7250.

Includes indexes.

Organizational, direct support and general support maintenance repair parts and special tools lists : drill, pneumatic, drifter, boom-type, crawler-mounted, self-propelled NSN 3820-00-445-3766, Joy model RAM-MS-5/450A-DR.

Includes indexes.

Sparta und sein bund von 479 bis 445 v. Chr.

Mode of access: Internet.

Hand receipt covering contents of Components of End Items (COEI), Basic Issue Items (BII) and Additional Authorization List (AAL) for truck, cargo, 8 ton, 4x4, M520 w/winch (NSN 2320-00-873-5422), M520 w/o winch (NSN 2300-00-191-1310), M877 w/winch, w/material handling crane (NSN 2320-01-010-4956), M877 w/o winch, w/material handling crane (NSN 2320-01-010-4957), truck, wrecker, 10 ton, 4x4, M553 (NSN 2320-00-873-5426), truck, tanker, fuel servicing, 2500 gallon, 4x4, M559 w/winch (NSN 2320-00-873-5420), M559 w/o winch (NSN 2320-00-445-7250).

"May 1983."

Reauthorization of the Price-Anderson Act : hearings before the Subcommittee on Nuclear Regulation of the Committee on Environment and Public Works, United States Senate, Ninety-ninth Congress, first session, on S. 445, S. 1225, and S. 1761 ....

"October 22, and 23, 1985"--Pt. 1. -- May 13, 1986--pt. 2.

Gastroprotective Effects (in Rodents) Of A Flavonoid Rich Fraction Obtained From Syngonanthus Macrolepsis.

Syngonanthus macrolepis, popularly known in Brazil as 'sempre-vivas', is a plant from the family Eriocaulaceae, it is found in the states of Minas Gerais and Bahia. The species contains a variety of constituents, including flavonoids with gastroprotective effect. In this work, a flavonoid-rich fraction (Sm-FRF) obtained from scapes of S. macrolepis was investigated for preventing gastric ulceration in mice and rats. The activity was evaluated in models of induced gastric ulcer (absolute ethanol, stress, non-steroidal anti-inflammatory drugs and pylorus ligation). The cytoprotective mechanisms of the Sm-FRF in relation to sulfhydryl (SH) groups, nitric oxide (NO) and antioxidant enzymes were also evaluated. The Sm-FRF (100 mg/kg, p.o.) significantly reduced gastric injury in all models, and did not alter gastric juice parameters after pylorus ligation. The results indicate significant gastroprotective activity for the Sm-FRF, which probably involves the participation of both SH groups and the antioxidant system. Both are integral parts of the gastrointestinal mucosa's cytoprotective mechanisms against aggressive factors.

Avaliação da biodegradabilidade anaeróbia de resíduos da bovinocultura e da suinocultura

The biodegradability of animal wastes production was evaluated through a simplified methodology that allowed the verification of the applicability of anaerobic processes. The experiments were performed in bath reactors, with granular sludge of three origins: UASB reactor treating dairy effluent, UASB reactor treating swine effluent and UASB reactor treating effluent of slaughterhouse of poultry. The experiments (1) - dairy effluent and poultry slaughterhouse non-adapted sludge; (2) -swine effluent and poultry slaughterhouse non-adapted sludge; (3) - dairy effluent and poultry slaughterhouse adapted sludge; (4) - swine effluent and poultry slaughterhouse adapted sludge; (5) - dairy effluent and dairy sludge, and (6) - swine effluent and swine sludge were performed in Incubator Shaker, at a temperature of 35 °C, under agitation at a 150 rpm, for 5 minutes, every 1 hour. A substrat:biomass relationship of 0.5 was used. Kinetic models of Monod, Zero Order, First and Second Order were tested and it was verified that the First Order model provided the best adjustment. The apparent First Order kinetic parameter (k1) was estimated for the experiments 1; 2; 3; 4; 5, and 6, as 2.51 x 10-2; 2.49 x 10-2; 1.90 x 10-2; 3.09 x 10-2; 2.54 x 10-2; 4.09 x 10-2 h-1, respectively.

Determinação do máximo déficit acumulado de oxigênio: efeito da duração dos testes submáximos para predição da demanda de oxigênio

The aim of this study was to investigate the influence of different assessment time periods of submaximal tests on the determination of the maximal accumulated oxygen deficit (MAOD), through the adoption of different time slots of 4 to 6, 6 to 8 and 8 to 10 min. Ten cyclists with mean age of 27.5 ± 4.1 years, body mass 74.4 ± 12.7 kg and time experience of 9.8 ± 4.7 years participated in this study. The athletes underwent an incremental exercise test to determine the peak oxygen consumption (VO2peak), and four submaximal constant work-load test sessions (60, 70, 80 and 90% VO2peak) of 10 min in order to estimate the O2 demand (DEO2). The mean VO2 values obtained on each constant work-load for the 4 to 6, 6 to 8 and 8 to 10 min time-periods intervals were used to perform a linear regression between the intensity and O2 consumption for each time-period. In addition, the subjects performed one supramaximal rectangular test (110% VO2peak) for the quantification of MAOD. There was no significant difference in VO2 between the different time-periods for all submaximal tests (P> 0.05). Similarly, no significant difference was found in DEAO2 and MAOD (P> 0.05). Furthermore, the values of MAOD for the three time-periods intervals showed good agreement and strong correlation. Thus, the data suggest that the submaximal tests used to estimate the values of MAOD can be reduced, at least in this type of sample, and with the use of a cycle simulator.