Radium in Arctic surface water

The transpolar drift is strongly enriched in 228Ra accumulated on the wide Arctic shelves with subsequent rapid offshore transport. We present new data of Polarstern expeditions to the central Arctic and to the Kara and Laptev seas. Because 226Ra activities in Pacific waters are 30% higher than in Atlantic waters, we correct 226Ra for the Pacific admixture when normalizing 228Ra with 226Ra. The use of 228Ra decay as age marker critically depends on the constancy in space and time of the source activity, a condition that has not yet adequately been tested. While 228Ra decays during transit over the central basin, ingrowth of 228Th could provide an alternative age marker. The high 228Th/228Ra activity ratio (AR = 0.8-1.0) in the central basins is incompatible with a mixing model based on horizontal eddy diffusion. An advective model predicts that 228Th grows to an equilibrium AR, the value of which depends on the scavenging regime. The low AR over the Lomonosov Ridge (AR = 0.5) can be due to either rapid transport (minimum age without scavenging 1.1 year) or enhanced scavenging. Suspended particulate matter load (derived from beam transmission and particulate 234Th) and total 234Th depletion data show that scavenging, although extremely low in the central Arctic, is enhanced over the Lomonosov Ridge, making an age of 3 years more likely. The combined data of 228Ra decay and 228Th ingrowth confirm the existence of a recirculating gyre in the surface water of the eastern Eurasian Basin with a river water residence time of at least 3 years.

Legislative hearing on S. 346, a bill to amend the Office of Federal Procurement Policy Act to establish a governmentwide policy requiring a competition in certain procurements from federal prison industries : hearing before the Financial Management, the Budget, and International Security Subcommittee of the Committee on Governmental Affairs, United States Senate, One Hundred Eighth Congress, second session, April 7, 2004.

Shipping list no.: 2005-0086-P.

Étude chronologique sur la troisième guerre sacrée (356-346 avant J.C.) / par Paul Cloché. --

Bibliography: p. [vii]- viii .

Diui Mesue et noua quedam vltra ea que secum associari co[n]sueueru[n]t Opera ... Mundini de lentiis super canones eius vniversales expositio luculentissima. Christophori Georgii florentini super eius antidotarium expositio clarissima. Christophori eiusdem tractatus de aqua & ptisana ordeacea conficienda fo. 98. Petri Apponensis fructuose additiones. fo. 142. Nicolai medicorum expertissimi antidotarium paruum. fo. 271. Ioa[n]nis de Sancto amando super idem Nicolai antidotarium expositio facu[n]dissima. fo. 303. De quid pro quo. i. de simplicibus in eade[m] operatione co[m]municantibus assu[m]matio. fo. 342. Synonimorum medicinalium. i. nominum ide[m] medicinale significantium tractatus. fo. 342. Bulcasis siue seruitoris medicorum profundissimi libellus copiosissimus. fo. 346. Preclarum Saladini pro aromatariis compendium. fo. 357. Gentilis Fulginei de dosi medicinarum inuestiganda libellus. fo. 339. Alchi[n]di medicorum... de medicinaru[m] co[m]positar[um] gradib[us] i[n]uestiga[n]dis libellus. 373. Subtilissimus Habe[n]guefit de simplicibus medicinis libellus. fo. 369. Egregius Apulei... de ponderibus et mensuris libellus. fo. 372. Antidotorum in Mesue & Nicolai antidotariis contentorum index. fo. 377. Remediorum variis egritudinibus conferentium summula copiosissima. fo. 38. Additiones noue ad multa i[n] Mesue & Nicolai antidotariis...

Contiene además las adiciones de Francesco di Piedimonte al Grabadin de Mesue (f. 142-271), y el comentario de Matthaeus Platearius al Antidotarium de Nicolás Salernitano (f. 271-303), acompañado del texto original.

Direct support, general support, and depot maintenance repair parts and special tools list for periscope, tank, M28 (1240-346-8735), M28C (1240-706-0794), and M28D (1240-990-1851).

"January 1970."

Direct support and general support maintenance repair parts and special tools lists (including depot maintenance repair parts and special tools) for carrier, personnel, full tracked, armored, M113A1 2350-00-968-6321, M113A2, 2350-01-068 4077, carrier, command post, light tracked, M577A1 2350-00-056-6808, M577A2, 2350-01-068-4089 ....

"August 1975."

Operator's manual : carrier, personnel, full tracked, armored M113A1, 2350-00-968-6321; carrier, command post, light, tracked M577A1, 2350-00-056-6808; carrier, mortar, 107-mm, self-propelled M106A1, 2350-00-076-9002; carrier, mortar ... carrier, flame thrower ....

"August 1978."

Operator, organizational field maintenance manual for trailer, flat bed, guided missile, M261 (2330-835-8637), M261A1 (2330-346-7563), trailer, low bed, antenna mount, M260 (2330-835-8636), M260A1 (2330-046-7820), M406 (1450-607-3656) ....

"September 1964."

Field and depot maintenance repair parts and special tool lists : reperforators, teletypewriter TT-107/FG, TT-107B/FG, TT-109/FG, TT-345/FG, TT-345A/FG, TT-346/FG, and TT-346A/FG.

"20 March 1964."

Public hearing before Assembly Committee on Labor and Industries on Assembly Bill Pr. no. 342, Int. no. 346; Assembly Bill Pr. no. 1860, Int. no. 1671.

Cover title.

Aviation unit and aviation intermediate mainenance manual (including repair parts and special tools list) : test set, armament subsystem, M16 (4933-00-056-0202).

"January 1972."

Tongass National Forest : hearing before the Subcommittee on Public Lands, National Parks, and Forests of the Committee on Energy and Natural Resources, United States Senate, One Hundred First Congress, first session, on S. 237 ... S. 346.

"February 28, 1989"--Pt. 1.

Global compilation of benthic data sets I

Approaches to quantify the organic carbon accumulation on a global scale generally do not consider the small-scale variability of sedimentary and oceanographic boundary conditions along continental margins. In this study, we present a new approach to regionalize the total organic carbon (TOC) content in surface sediments (<5 cm sediment depth). It is based on a compilation of more than 5500 single measurements from various sources. Global TOC distribution was determined by the application of a combined qualitative and quantitative-geostatistical method. Overall, 33 benthic TOC-based provinces were defined and used to process the global distribution pattern of the TOC content in surface sediments in a 1°x1° grid resolution. Regional dependencies of data points within each single province are expressed by modeled semi-variograms. Measured and estimated TOC values show good correlation, emphasizing the reasonable applicability of the method. The accumulation of organic carbon in marine surface sediments is a key parameter in the control of mineralization processes and the material exchange between the sediment and the ocean water. Our approach will help to improve global budgets of nutrient and carbon cycles.

Implication du glutamate 346 de NHE1 dans le transport du Na⁺ et l'interaction avec les inhibiteurs

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

Implication du glutamate 346 de NHE1 dans le transport du Na⁺ et l'interaction avec les inhibiteurs

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.