PubRank

R J Volk

Author PubWeight™ 72.91‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Effects of Light and Darkness on Gaseous Exchange of Bean Leaves. Plant Physiol 1964 8.44
2 Evaluation of the Relative Ureide Content of Xylem Sap as an Indicator of N(2) Fixation in Soybeans: GREENHOUSE STUDIES. Plant Physiol 1980 3.80
3 Nitrate Accumulation, Assimilation, and Transport by Decapitated Corn Roots : EFFECTS OF PRIOR NITRATE NUTRITION. Plant Physiol 1981 3.20
4 Reduction of plant tissue nitrate to nitric oxide for mass spectrometric 15N analysis. Anal Biochem 1979 3.19
5 Simultaneous Influx and Efflux of Nitrate during Uptake by Perennial Ryegrass. Plant Physiol 1973 3.07
6 Nitrate Uptake and Assimilation by Wheat Seedlings during Initial Exposure to Nitrate. Plant Physiol 1975 2.90
7 Restricted nitrate influx and reduction in corn seedlings exposed to ammonium. Plant Physiol 1982 2.38
8 Prostate cancer screening: a decision analysis. J Fam Pract 1995 2.29
9 Medical students' attitudes toward providing care for the underserved. Are we training socially responsible physicians? JAMA 1993 2.26
10 Ethnic and sex bias in primary care screening tests for alcohol use disorders. Ann Intern Med 1998 2.26
11 Investigation of a severity-based classification of mood and anxiety symptoms in primary care patients. J Am Board Fam Pract 1999 2.20
12 Screening for prostate cancer with the prostate-specific antigen test: are patients making informed decisions? J Fam Pract 1999 2.18
13 Minimizing Nitrate Reduction during Kjeldahl Digestion of Plant Tissue Extracts and Stem Exudates : APPLICATION TO N STUDIES. Plant Physiol 1982 2.00
14 Relative Content of NO(3) and Reduced N in Xylem Exudate as an Indicator of Root Reduction of Concurrently Absorbed NO(3). Plant Physiol 1982 1.93
15 Intercellular localization of nitrate reductase in roots. Plant Physiol 1986 1.86
16 Exogenous NO(3) Influx and Endogenous NO(3) Efflux by Two Maize (Zea mays L.) Inbreds during Nitrogen Deprivation. Plant Physiol 1988 1.45
17 Oxygen uptake by illuminated maize leaves. Nature 1969 1.42
18 p-Fluorophenylalanine-Induced Restriction of Ion Uptake and Assimilation by Maize Roots. Plant Physiol 1985 1.36
19 Nitrate Reduction in Response to CO(2)-Limited Photosynthesis : Relationship to Carbohydrate Supply and Nitrate Reductase Activity in Maize Seedlings. Plant Physiol 1990 1.30
20 Nitrate absorption and assimilation in ryegrass as influenced by calcium and magnesium. Plant Physiol 1972 1.30
21 Alterations in leaf carbohydrate metabolism in response to nitrogen stress. Plant Physiol 1988 1.26
22 The alcohol use disorders identification test: an aid to recognition of alcohol problems in primary care patients. Prev Med 2001 1.25
23 Root environment acidity as a regulatory factor in ammonium assimilation by the bean plant. Plant Physiol 1966 1.23
24 Nitrogen-15 Dioxide Uptake and Incorporation by Phaseolus vulgaris (L.). Science 1979 1.23
25 Potassium influx into maize root systems : influence of root potassium concentration and ambient ammonium. Plant Physiol 1987 1.09
26 Health-related quality of life in primary care patients with recognized and unrecognized mood and anxiety disorders. Int J Psychiatry Med 1999 1.07
27 Endogenous NO(3) in the Root as a Source of Substrate for Reduction in the Light. Plant Physiol 1987 1.05
28 Assimilation of NO(3) Taken Up by Plants in the Light and in the Dark. Plant Physiol 1984 0.99
29 Does the severity of mood and anxiety symptoms predict health care utilization? J Fam Pract 1999 0.97
30 Pregnant adolescents: experiences and behaviors associated with physical assault by an intimate partner. Matern Child Health J 2000 0.93
31 Simultaneous influx of ammonium and potassium into maize roots: kinetics and interactions. Planta 1988 0.92
32 A longitudinal investigation of medical student attitudes toward the medically indigent. Teach Learn Med 1997 0.88
33 Nitrate influx and efflux by intact wheat seedlings: Effects of prior nitrate nutrition. Planta 1976 0.86
34 Effects of Altered Carbohydrate Availability on Whole-Plant Assimilation of NO(3). Plant Physiol 1989 0.86
35 The behavioral risks and life circumstances of adolescent mothers involved with older adult partners. Arch Pediatr Adolesc Med 2001 0.86
36 Recognition of mental health problems in primary care practices. Fam Med 1997 0.85
37 Teaching outpatient procedures: most common settings, evaluation methods, and training barriers in family practice residencies. Fam Med 1998 0.85
38 Daily changes in nitrate influx, efflux and metabolism in maize and pearl millet. Planta 1981 0.82
39 Differential Inhibition by Ferulic Acid of Nitrate and Ammonium Uptake in Zea mays L. Plant Physiol 1992 0.77
40 How should physicians involve patients in medical decisions? JAMA 2000 0.76
41 Warning patients about alcohol abuse. JAMA 1992 0.75
42 Reliability: why bother? Fam Med 1991 0.75
43 Early discharge of newborns. JAMA 1997 0.75
44 Asymptomatic prostate nodules. J Fam Pract 1992 0.75
45 Local anesthetic cartridge warmer--first in, first out fresh. Ill Dent J 1984 0.75
46 Risk and resistance factors in the adaptation of mothers of children with cystic fibrosis. J Pediatr Psychol 1991 0.75
47 Partitioning of previously-accumulated nitrate to translocation, reduction, and efflux in corn roots. Planta 1983 0.75
48 Predictive properties of serum prostate-specific antigen testing in a community setting. Arch Intern Med 1997 0.75