Ammonium, Nitrate, and Phosphate Sorption to and Solute Leaching from Biochars Prepared from Corn Stover ( L.) and Oak Wood ( spp.).

Biochar (BC) was evaluated for nitrogen (N) and phosphorus (P) removal from aqueous solution to quantify its nutrient pollution mitigation potential in agroecosystems. Sorption isotherms were prepared for solutions of ammonium (NH), nitrate (NO), and phosphate (PO-P) using BC of corn ( L.) and oak ( spp.

The influence of paid work, race-ethnicity, and immigrant status on health care coverage after welfare reform in Hennepin County, Minnesota.

A random sample of 84 past and present Temporary Assistance to Needy Families recipients in Hennepin County, Minnesota, were interviewed regarding their health care coverage and corresponding work histories over a 42-month period. Diverse racial-ethnic and immigrant groups of color were oversampled. A life history calendar technique and supplementary interview questions were utilized.

Using angiogenesis in chronic wound care with becaplermin and oxidized regenerated cellulose/collagen.

For most of the last century, chronic wound care was a practice of passive techniques, designed to prevent the progression of the wound. In the last decade, however, advanced techniques have focused on improving the wound at the molecular level to accelerate wound healing. Successful modalities include tissue-engineered products, hyperbaric oxygen, negative pressure therapy, electrical stimulation, and recombinant growth factors.

Infusion pump delivers over-dosage of propofol as a result of missing syringe support.

We describe the malfunction of a common drug infusion pump. The syringe saddle was missing and allowed the syringe barrel to contact the pump case, which decreased the outward displacement of the syringe clamp. Then, the infusion pump falsely detected a smaller syringe size and consequently delivered an increased infusion rate and overdose of propofol to the patient.

Career paths and contributions of four cohorts of IV-E funded MSW child welfare graduates.

For the last decade the federal government has provided financial support through Title IV-E of the Social Security Act to schools of social work to provide professional education in child welfare. This study looks at the first four cohorts of graduates who received IV-E funding from one school of social work. Data on MSW graduates from 1993-1996 (N = 73), as well as survey responses (N = 32), were analyzed to ascertain dimensions of their career development in, and contributions to, child welfare social work.

The relationship between pre-, during-, post-treatment factors, and adolescent substance abuse behaviors.

This study examines the relationship between pre-, during-, post-treatment variables, and treatment outcome by using a secondary data analysis of the 6- and 12-months posttreatment follow-up data from 2,317 adolescent subjects. Pre-treatment variables included in this study are psychosocial, family-related, substance abuse, and special event variables. During-treatment variables are length of stay and parental participation in treatment.

PROPHET--a national computing resource for life science research.

PROPHET is a national computing resource tailored to meet the data management and analysis needs of life scientists working in a wide variety of disciplines, ranging from pharmacology to molecular biology. The PROPHET system offers a fully integrated graphics-oriented environment designed for the manipulation and analysis of tabular data, graphs, molecular structures, biological simulation models, and protein and nucleic acid sequences, and it includes access to molecular structure and sequence databases.

Psychiatric emergency services: evolution, adaptation and proliferation.

This paper traces the dramatic rise of psychiatric emergency services (PES) and crisis intervention services over recent decades. It examines three processes--the evolution of such services, their adaptation to diverse settings, and the striking increase both in the number of programs and their utilization. PES first evolved along three disparate lines--makeshift psychiatric emergency care in the emergency room of the general hospital, ad hoc after-care services in the psychiatric hospital, and the community mental health movement.

Subseabed disposal of nuclear wastes.

Fine-grained clay formations within stable (predictable) deep-sea regions away from lithospheric plate boundaries and productive surface waters have properties that might serve to permanently isolate radioactive waste. The most important characteristics of such clays are their vertical and lateral unifomity, low permeability, very high cation retention capacity, and potential for self-healing when disturbed. The most attractive abyssal clay formation (oxidized red ciay)covers nearly 30 percent of the sea floor and hence 20 percent of the earth's surface.

Melatonin induction of gonadal quiescence in pinealectomized Syrian hamsters.

Pinealectomized Syrian hamsters were injected thrice daily with 25 micrograms of melatonin per injection. The injections were administered at 3-hour intervals either during the day or during the night of a photoperiodic cycle of 14 hours of light and 10 hours of darkness. After 6 weeks of treatment with melatonin during the night, both pinealectomized and intact hamsters had reduced testis weight, and pinealectomized hamsters showed decreased levels of serum gonadotropins.

Effect of melatonin administered during the night on reproductive function in the Syrian hamster.

Syrian hamsters were maintained on a long photoperiod (lights on 0600-2000 h) and injected daily with melatonin (10 microgram per injection) for 6-7 weeks. Females injected at 2000 h or 0400 h ceased estrous cyclicity, and males treated similarly at these times had reduced testis weights by the sixth week of treatment. Daily administration of the same dosage of melatonin at 2400 and 0100 h failed to interrupt estrous cyclicity or reduce testis weight.

Shaping of the continental rise by deep geostrophic contour currents.

Geostrophic contour-following bottom currents involved in the deep thermohaline circulation of the world ocean appear to be the principal agents which control the shape of the continental rise and other sediment bodies.

Modern Graywacke-Type Sands.

A preliminary study of more than 100 deep-sea cores from abyssal plains has revealed two examples of recent muddy sands of the graywacke type which, together with the microcrystalline matrix, form a bimodal-size distribution sands have a well-sorted framework of quartz, feldspar, and rock fragments which, together with the microcrystalline matrix, form a bimodal-size distribution that is also typical of ancient graywackes. The matrix is considered to be primary.