Tentative Schedule Research Articles

A tentative schedule for the fifth JSAA national conference

A tentative schedule for the fifth JSAA national conference

Heuristics for Multilevel Lot-Sizing with a Bottleneck

In this paper we present a heuristic method, based on Lagrangian relaxation, for multilevel lot-sizing when there is a single bottleneck facility. A series of Lagrangian relaxations (one for each item in the product structure) is imbedded in a branch and bound procedure. The objective is to find a production schedule that fits within available capacity at minimum cost. The method has two solution phases, dual and primal. In the dual phase of the procedure, implied costs of setups and production are determined based on a tentative schedule. The primal phase is repeated with these new prices and we iterate to reach a good solution. The solution procedure is first tested on two special cases: uncapacitated multilevel lot-sizing and the capacitated, single-level multi-item lot sizing problem. The results show that the solution procedure can provide better solutions than some heuristics designed especially for those problems. Test results on the bottleneck problem indicate that good feasible solutions are found for problems too difficult to solve with exact methods.

Budget hearings in Congress

The tentative schedule for hearings and markups by the Senate and House of Representatives on the Reagan budget proposal for fiscal 1986 is listed below. Dates and times should be verified with the committee or subcommittee holding the hearing; all offices on Capitol Hill may be reached by calling 202‐224‐3121. For guidelines on contacting a member of Congress, see AGU's Guide to Legislative Information and Contacts (Eos, August 28, 1984, p. 669).

Research ship plans for 1985”1987

The University National Oceanographic Laboratory System (UNOLS), representing operators of American academic research ships, has established a National Expeditionary Planning Committee to coordinate planning of research ship cruises to remote areas, multi‐ship operations, and operations requiring fixed schedules of work. One essential part of this is to provide predictions of the areas in which the major research ships are likely to operate to make it possible for scientific investigators to do their own planning. This is, of course, a circular process: Some marine scientists have told us of their plans; these have resulted in tentative schedules. We hope that other investigators will fit their plans into these schedules to use the ships more efficiently and to avoid unproductive transit time.

Tentative committee schedule

Tentative committee schedule

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Midwinter Meetings

Effect of potential antidotes on the acute toxicity of acrylonitrile

Rats were intoxicated with lethal doses of acrylonitrile by different routes of application, and the effect of potential antidotes was studied. The cyanide antidotes 4-dimethylaminophenol plus thiosulfate showed some protective effect only after oral but not after i.p. or inhalatory acrylonitrile application. Of the sulfhydryl compounds cysteine, N-acetylcysteine, cysteamine and diethyldithiocarbamate the two antidotes cysteine and, to some lesser extent, N-acetylcysteine proved especially effective. Cysteine, at a dose of 200 mg/kg (i.p.), prevented the lethal effect of 100 mg/kg acrylonitrile (i.p.) even when given 2 h after the acrylonitrile dose. From these experiments a tentative schedule of antidote therapy for humans accidentally intoxicated with acrylonitrile is inferred which will be validated in further studies in subhuman primates.

Tentative Four-Year Meeting Schedule

Tentative Four-Year Meeting Schedule

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Conference Meetings

Tentative Schedule of ACRL Midwinter Meetings

Tentative Schedule of ACRL Midwinter Meetings

Original Article

20 routine patients with endogenous depression were investigated in a kinetic and 4 week treatment study. Steady-state plasma nortriptyline concentrations above 200 microgram/L were associated with a highly significant poorer therapeutic outcome. The correlations between the 24, 48 and 72 hour concentrations and steady-state concentration were very good (r = 0.81, 0.97, 0.94; p less than 0.0001) and better than the correlation between half-life and steady-state (r = 0.65; p less than 0.01). The Spearman rank correlations (Rs) between amelioration of depression measured by the Hamilton Rating Scale (HRS) and the 24, 48 and 72 hour concentrations were highly significant (Rs = 0.74, 0.79, 0.79; p less than 0.001) but for half-life (Rs = 0.33) the correlation was not significant. The single 48 hour plasma nortriptyline concentration following a single oral dose is recommended as a reliable simplified monitoring test suitable for a busy clinic. The test is useful for dosage adjustment to maximise antidepressant action and minimise toxicity. A tentative dosage adjustment schedule for individualising antidepressant treatment with nortriptyline based on the 48 hour or the 24 hour plasma concentration is proposed.

Space aboard research vessels available

Norpax (North Pacific Experiment) scientists are planning to operate a large oceanographic research vessel (or vessels) along 150°W between Hawaii and Tahiti for about 16 months beginning January 1979. The tentative schedule calls for one round trip every two months. This will involve about 20 days at sea on each leg, southbound and northbound.The primary tasks to be performed are the making of hydrographic sections, the deployment and tending of moored oceanographic instruments, the launching of drifting buoys, and the gathering of atmospheric observations for the FGGE data set. In addition to these primary tasks, space will be made available to other researchers on an as‐available basis. Priority will be given to those projects related to large‐scale air‐sea interaction, but anyone interested should apply.

A Tentative Schedule Helps Resolve Conflicts

A Tentative Schedule Helps Resolve Conflicts

Meiosis in Schizophyllum commune: the effect of hydroxyurea on basidiospore sporulation, germination, and nuclear number.

In a search for an experimental procedure to synchronize meiosis in fruit bodies of Schizophyllum commune, the effect of hydroxyurea on sporulation was tested. Results indicate that hydroxyurea has an immediate and reversible effect on basidiospore sporulation, germination, and nuclear number. A tentative time schedule for meiosis is presented.