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- Charles R. Goldman, James J. Elser, Robert C. Richards, John E. Reuters, John Priscu, A. L. Levin
- Hydrobiologia
- 2004

Lake Baikal, Russian Siberia, was sampled in July 1990 during the period of spring mixing and initiation of thermal stratification. Vertical profiles of temperature, dissolved nutrients (nitrate and soluble reactive phosphorus), phytoplankton biomass, and primary productivity were determined in an eleven-station transect encompassing the entire 636 km… (More)

- Joseph W. Shega, A. L. Levin, +5 authors Greg A. Sachs
- Journal of palliative medicine
- 2003

Hospice is the standard method for providing quality end-of-life care in the United States. However, studies reveal that persons with dementia are infrequently referred to hospice, that barriers exist to increasing hospice utilization in this population, and that patients with dementia would benefit from hospice or hospice-like services earlier in the… (More)

where r is a rational function of degree n. We consider, more generally, the infimum Zmn of such ratios taken over the class of all rational functions r with numerator degree m and denominator degree n. For any "ray sequence" of integers (m, n); that is, m/n -+ A, m + n -+ 00, we show that z~m+n) approaches a limit L(l) that can be described in terms of the… (More)

- Ajay M. Joshi, Lieven Eeckhout, +5 authors Deborah Prather
- 2007

- A. L. Levin, Doron S. Lubinsky
- Journal of Approximation Theory
- 2001

We establish a representation for external
elds involving Green potentials. This is the analogue of the representation of Rakhmanov and Buyarov involving logarithmic potentials. We also establish related results, and present an example.

- Nahum Landshman, I Ben-Hanan, O Ben-Chaim, A. L. Levin, Michael Belkin
- Current eye research
- 1985

A model for simulating the endothelial damage caused by surgery is described. The model consists of the introduction of a specially constructed instrument into the anterior chamber and using it for scraping the endothelium of a pre-determined, precisely quantifiable area of cornea. The process of healing of the scraped cornea can be followed and measured… (More)

- A. L. Levin
- The New England journal of medicine
- 1968

- A. L. Levin
- 1998

Orthogonal polynomials pn(W ; x) for exponential weights W 2 = e−2Q on a nite or in nite interval I , have been intensively studied in recent years. We discuss e orts of the authors to extend and unify some of the theory; our deepest result is the bound |pn(W ; x)|W (x)|(x − a−n)(x − an)|6C; x∈ I with C independent of n and x. Here a±n are the… (More)

- A. L. Levin, Linda G. Mills
- Social work
- 2003

This study presents national data on each state's legislative approach to custody cases involving allegations of domestic violence. Battered women's advocates have successfully lobbied in some states for rebuttable presumption statutes that direct judges to deny sole or joint custody to abusive parents unless they present persuasive evidence establishing… (More)

- Efim Benenson, A. L. Levin, L N Plaksina
- Sovetskaia meditsina
- 1975