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Johannes-Müller-Institut für Physiologie, D-10117 Berlin, Germany
WE RECEIVED GOOD
NEWS from the Institute for Scientific Information (ISI), the
creators of the journal impact factor (IF). Their Essential Science
Indicators ranked the American Journal of Physiology
(AJP)-Regulatory, Integrative and Comparative Physiology as the
"most improved" journal in the Biology & Biochemistry group for August-October 2001. For January-March 2002, our journal was again successful, ranking as the second most improved journal.
What is written, read, and cited in AJP-Regulatory,
Integrative and Comparative Physiology? Conjugated linoleic acid
(CLA) soars. This is one of the remarkable observations made when
looking back at 2001 citation behavior. DeLany et al. (6)
was the study published in 1999 that was most frequently cited
in 2001; it received 23 citations in 2001 (Table
1). The authors showed
that feeding CLA produces a rapid decrease in fat accumulation without
any major effect on food intake. Baumgard et al. (3)
"take the cake" for articles published in 2000 (Table
2). Again, it was CLA:
trans-10,cis-12. CLA was identified as the isomer
responsible for inhibition of milk fat synthesis. Tables 1 and 2
summarize the articles published in AJP-Regulatory, Integrative
and Comparative Physiology in 1999 (of 447 total articles
published) and 2000 (of 488 articles published), respectively, that
were most frequently cited in 2001. These statistics are similar to
those that ultimately make up the impact factor (IF). When comparing
Tables 1 and 2, one notices that articles from 2000 appear to be less
"appreciated" than those from 1999. This is a technical artifact,
however, that identifies one major difficulty with IF interpretation.
The articles from 2000 were cited less often than those from 1999 because a certain amount of time is required for work to be referenced. In fact, more than one-half of all the citations to a typical study
published in our journal occur after 6 years.
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Table 1.
Articles published in 1999 in the American Journal of
Physiology-Regulatory, Integrative and Comparative Physiology
that were most frequently cited in 2001
Table 2.
Articles published in 2000 in the American Journal of
Physiology-Regulatory, Integrative and Comparative Physiology that were
most frequently cited in 2001
The ISI Essential Science Indicators considers the citation behavior over a longer period than the IF (>10 years) and is updated every 2 months. The "citation half-life" provides information about the period during which papers of a journal are usually cited. Thus before the use of the Essential Science Indicators, rankings of journals had been made by considering the product of the citation half-life and the IF (7). The IF by itself, however, only considers the citation behavior of a given 2-yr period. Thus, articles with apparent long-lasting impact are not fully rewarded. For the same reason, December issues attract fewer citations than January issues (e.g., there are no October-December 2000 articles among the top 10 in Table 2); the simple explanation is that January papers have 11 months more time to be considered for the IF than a study published in December. This helps explain why some journals have considerably thicker volumes in January than in December!
AJP-Regulatory, Integrative and Comparative Physiology
currently receives roughly one-half of its submissions from outside the
United States (Table 3).
Regulatory and Integrative Physiology was the subheading of most of the
studies published in 1999 and 2000 (3 subheadings were available:
Regulatory and Integrative Physiology, Developmental Physiology, or
Comparative Physiology). All of the sections are valuable, however, and
make AJP-Regulatory, Integrative and Comparative Physiology
the journal it is.
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What all the commonly used indexes do not take into account is the remarkable observation that what is most frequently read is not necessarily most often cited. The average article appearing in Advances in Physiology Education is downloaded from the website around three times as often as a typical AJP paper. Statistically speaking, there are 62,730 readers for every IF of Advances in Physiology Education. For AJP-Regulatory, Integrative and Comparative Physiology, there are 168 readers per IF.
Finally, some news regarding submitted manuscripts: the time from submission to first decision has been reduced to 34 days. The average manuscript that is ultimately accepted for publication has been in the pipeline for only 76 days. The present acceptance rate for original articles is below 50%.
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FOOTNOTES |
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Address for reprint requests and other correspondence: P. B. Persson, Johannes-Müller-Institut für Physiologie, Tucholskystr. 2, D-10117 Berlin, Germany (E-mail: pontus.persson{at}charite.de).
The costs of publication of this article were defrayed in part by the payment of page charges. The article must therefore be hereby marked "advertisement" in accordance with 18 U.S.C. Section 1734 solely to indicate this fact.
10.1152/ajpregu.00129.2002
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1.
Bamshad, M,
Song CK,
and
Bartness TJ.
CNS origins of the sympathetic nervous system outflow to brown adipose tissue.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R1569-R1578,
1999
2.
Bangsbo, J,
Krustrup P,
Gonzalez-Alonso J,
Boushel R,
and
Saltin B.
Muscle oxygen kinetics at onset of intense dynamic exercise in humans.
Am J Physiol Regulatory Integrative Comp Physiol
279:
R899-R906,
2000
3.
Baumgard, LH,
Corl BA,
Dwyer DA,
Saebø A,
and
Bauman DE.
Identification of the conjugated linoleic acid isomer that inhibits milk fat synthesis.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R179-R184,
2000
4.
Chen, CT,
Hwang LL,
Chang JK,
and
Dun NJ.
Pressor effects of orexins injected intracisternally and to rostral ventrolateral medulla of anesthetized rats.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R692-R697,
2000
5.
Dai, Y,
Pollock DM,
Lewis RL,
Wingard CJ,
Stopper VS,
and
Mills TM.
Receptor-specific influence of endothelin-1 in the erectile response of the rat.
Am J Physiol Regulatory Integrative Comp Physiol
279:
R25-R30,
2000
6.
DeLany, JP,
Blohm F,
Truett AA,
Scimeca JA,
and
West DB.
Conjugated linoleic acid rapidly reduces body fat content in mice without affecting energy intake.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R1172-R1179,
1999
7.
Deurenberg, R.
Journal deselection in a medical university library by ranking periodicals based on multiple factors.
Bull Med Libr Assoc
81:
316-319,
1993[Medline].
8.
Faggioni, R,
Fantuzzi G,
Gabay C,
Moser A,
Dinarello CA,
Feingold KR,
and
Grunfeld C.
Leptin deficiency enhances sensitivity to endotoxin-induced lethality.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R136-R142,
1999
9.
Gross, G,
Imamura T,
Vogt SK,
Wozniak DF,
Nelson DM,
Sadovsky Y,
and
Muglia LJ.
Inhibition of cyclooxygenase-2 prevents inflammation-mediated preterm labor in the mouse.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R1415-R1423,
2000
10.
Hagan, MM,
Rushing PA,
Pritchard LM,
Schwartz MW,
Strack AM,
Van der Ploeg LHT,
Woods SC,
and
Seeley RJ.
Long-term orexigenic effects of AgRP-(83
132) involve mechanisms other than melanocortin receptor blockade.
Am J Physiol Regulatory Integrative Comp Physiol
279:
R47-R52,
2000
11.
Johnston, SD,
Orgeig S,
Lopatko OV,
and
Daniels CB.
Development of the pulmonary surfactant system in two oviparous vertebrates.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R486-R493,
2000
12.
Kozma, F,
Johnson RA,
Zhang F,
Yu C,
Tong X,
and
Nasjletti A.
Contribution of endogenous carbon monoxide to regulation of diameter in resistance vessels.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R1087-R1094,
1999
13.
Kräuchi, K,
Cajochen C,
Werth E,
and
Wirz-Justice A.
Functional link between distal vasodilation and sleep-onset latency?
Am J Physiol Regulatory Integrative Comp Physiol
278:
R741-R748,
2000
14.
Kumar, A,
Brar R,
Wang P,
Dee L,
Skorupa G,
Khadour F,
Schulz R,
and
Parrillo JE.
Role of nitric oxide and cGMP in human septic serum-induced depression of cardiac myocyte contractility.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R265-R276,
1999
15.
Levin, BE,
Dunn-Meynell AA,
and
Routh VH.
Brain glucose sensing and body energy homeostasis: role in obesity and diabetes.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R1223-R1231,
1999
16.
Matson, CA,
Reid DF,
Cannon TA,
and
Ritter RC.
Cholecystokinin and leptin act synergistically to reduce body weight.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R882-R890,
2000
17.
McGiff, JC,
and
Quilley J.
20-HETE and the kidney: resolution of old problems and new beginnings.
Am J Physiol Regulatory Integrative Comp Physiol
277:
R607-R623,
1999
18.
Morrison, SF.
RVLM and raphe differentially regulate sympathetic outflows to splanchnic and brown adipose tissue.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R962-R973,
1999
19.
Mrugala, M,
Zlomanczuk P,
Jagota A,
and
Schwartz WJ.
Rhythmic multiunit neural activity in slices of hamster suprachiasmatic nucleus reflect prior photoperiod.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R987-R994,
2000
20.
Mullington, J,
Korth C,
Hermann DM,
Orth A,
Galanos C,
Holsboer F,
and
Pollmacher T.
Dose-dependent effects of endotoxin on human sleep.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R947-R955,
2000
21.
Ohuchi, T,
Kuwaki T,
Ling GY,
Dewit D,
Ju KH,
Onodera M,
Cao WH,
Yanagisawa M,
and
Kumada M.
Elevation of blood pressure by genetic and pharmacological disruption of the ETB receptor in mice.
Am J Physiol Regulatory Integrative Comp Physiol
276:
R1071-R1077,
1999
22.
Panserat, S,
Médale F,
Blin C,
Brèque J,
Vachot C,
Plagnes-Juan E,
Gomes E,
Krishnamoorthy R,
and
Kaushik S.
Hepatic glucokinase is induced by dietary carbohydrates in rainbow trout, gilthead seabream, and common carp.
Am J Physiol Regulatory Integrative Comp Physiol
278:
R1164-R1170,
2000
23.
Shirasaka, T,
Nakazato M,
Matsukura S,
Takasaki M,
and
Kannan H.
Sympathetic and cardiovascular actions of orexins in conscious rats.
Am J Physiol Regulatory Integrative Comp Physiol
277:
R1780-R1785,
1999
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