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Showing 1 to 12 of 240 entries
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Sequential ovulation and fertility of polyoestrus in American black bears (Ursus americanus).

Conservation physiology

Himelright BM, Moore JM, Gonzales RL, Mendoza AV, Dye PS, Schuett RJ, Durrant BS, Read BA, Spady TJ.
PMID: 27293672
Conserv Physiol. 2014 Nov 25;2(1):cou051. doi: 10.1093/conphys/cou051. eCollection 2014.

American black bears (Ursus americanus) are seasonally polyoestrous and exhibit delayed implantation, which may allow equal and independent fertility of recurrent oestruses of a mating season. We postulated that the luteal inactivity during delayed implantation allows bears to have...

Efficient transport of tropospheric aerosol into the stratosphere via the Asian summer monsoon anticyclone.

Proceedings of the National Academy of Sciences of the United States of America

Yu P, Rosenlof KH, Liu S, Telg H, Thornberry TD, Rollins AW, Portmann RW, Bai Z, Ray EA, Duan Y, Pan LL, Toon OB, Bian J, Gao RS.
PMID: 28630285
Proc Natl Acad Sci U S A. 2017 Jul 03;114(27):6972-6977. doi: 10.1073/pnas.1701170114. Epub 2017 Jun 19.

An enhanced aerosol layer near the tropopause over Asia during the June-September period of the Asian summer monsoon (ASM) was recently identified using satellite observations. Its sources and climate impact are presently not well-characterized. To improve understanding of this...

Abdominal ultrasonography of the pediatric gastrointestinal tract.

World journal of radiology

Gale HI, Gee MS, Westra SJ, Nimkin K.
PMID: 27551336
World J Radiol. 2016 Jul 28;8(7):656-67. doi: 10.4329/wjr.v8.i7.656.

Ultrasound is an invaluable imaging modality in the evaluation of pediatric gastrointestinal pathology; it can provide real-time evaluation of the bowel without the need for sedation or intravenous contrast. Recent improvements in ultrasound technique can be utilized to improve...

Evaluation of UT/LS hygrometer accuracy by intercomparison during the NASA MACPEX mission.

Journal of geophysical research. Atmospheres : JGR

Rollins AW, Thornberry TD, Gao RS, Smith JB, Sayres DS, Sargent MR, Schiller C, Krämer M, Spelten N, Hurst DF, Jordan AF, Hall EG, Vömel H, Diskin GS, Podolske JR, Christensen LE, Rosenlof KH, Jensen EJ, Fahey DW.
PMID: 28845379
J Geophys Res Atmos. 2014 Feb 27;119(4):1915-1935. doi: 10.1002/2013JD020817. Epub 2014 Feb 25.

Acquiring accurate measurements of water vapor at the low mixing ratios (< 10 ppm) encountered in the upper troposphere and lower stratosphere (UT/LS) has proven to be a significant analytical challenge evidenced by persistent disagreements between high-precision hygrometers. These...

The Role of MR Enterography in Assessing Crohn's Disease Activity and Treatment Response.

Gastroenterology research and practice

Moy MP, Sauk J, Gee MS.
PMID: 26819611
Gastroenterol Res Pract. 2016;2016:8168695. doi: 10.1155/2016/8168695. Epub 2015 Dec 27.

MR enterography (MRE) has become the primary imaging modality in the assessment of Crohn's disease (CD) in both children and adults at many institutions in the United States and worldwide, primarily due to its noninvasiveness, superior soft tissue contrast,...

Mother love and infant death, 1750-1920.

Journal of American history (Bloomington, Ind.)

Dye NS, Smith DB.
PMID: 11624049
J Am Hist. 1986;73(2):329-53.

No abstract available.

Hemoglobinopathies, Iron Overload and Chronic Viral Hepatitis in Patients with Hepatocellular Carcinoma in Myanmar.

Asian Pacific journal of cancer prevention : APJCP

Win N, Okada S, Win KM, Taketa K, Akiyama T, Aye KS, Kying H.
PMID: 12718679
Asian Pac J Cancer Prev. 2000;1(2):127-130.

To assess the relevance of altered iron metabolism, hemoglobin electrophoresis by isoelectric focusing was performed for 16 cases of hepatocellular carcinoma (HCC) from the Liver Unit, Yangon General Hospital. Serum iron, total iron binding capacity, serum ferritin and free...

Evidence that nitric acid increases relative humidity in low-temperature cirrus clouds.

Science (New York, N.Y.)

Gao RS, Popp PJ, Fahey DW, Marcy TP, Herman RL, Weinstock EM, Baumgardner DG, Garrett TJ, Rosenlof KH, Thompson TL, Bui PT, Ridley BA, Wofsy SC, Toon OB, Tolbert MA, Kärcher B, Peter T, Hudson PK, Weinheimer AJ, Heymsfield AJ.
PMID: 14739457
Science. 2004 Jan 23;303(5657):516-20. doi: 10.1126/science.1091255.

In situ measurements of the relative humidity with respect to ice (RHi) and of nitric acid (HNO3) were made in both natural and contrail cirrus clouds in the upper troposphere. At temperatures lower than 202 kelvin, RHi values show...

Credit for the future.

Elderly care

Dyer S.
PMID: 8490604
Elder Care. 1993 Mar-Apr;5(2):22-3.

No abstract available.

The age of parana flood volcanism, rifting of gondwanaland, and the jurassic-cretaceous boundary.

Science (New York, N.Y.)

Renne PR, Ernesto M, Pacca IG, Coe RS, Glen JM, Prévot M, Perrin M.
PMID: 17794593
Science. 1992 Nov 06;258(5084):975-9. doi: 10.1126/science.258.5084.975.

The Paraná-Etendeka flood volcanic event produced approximately 1.5 x 10(6) cubic kilometers of volcanic rocks, ranging from basalts to rhyolites, before the separation of South America and Africa during the Cretaceous period. New (40)Ar/(39)Ar data combined with earlier paleomagnetic...

Removal of Stratospheric O3 by Radicals: In Situ Measurements of OH, HO2, NO, NO2, ClO, and BrO.

Science (New York, N.Y.)

Wennberg PO, Cohen RC, Stimpfle RM, Koplow JP, Anderson JG, Salawitch RJ, Fahey DW, Woodbridge EL, Keim ER, Gao RS, Webster CR, May RD, Toohey DW, Avallone LM, Proffitt MH, Loewenstein M, Podolske JR, Chan KR, Wofsy SC.
PMID: 17816682
Science. 1994 Oct 21;266(5184):398-404. doi: 10.1126/science.266.5184.398.

Simultaneous in situ measurements of the concentrations of OH, HO(2), ClO, BrO, NO, and NO(2) demonstrate the predominance of odd-hydrogen and halogen free-radical catalysis in determining the rate of removal of ozone in the lower stratosphere during May 1993....

Structural and temporal requirements for geomagnetic field reversal deduced from lava flows.

Nature

Singer BS, Hoffman KA, Coe RS, Brown LL, Jicha BR, Pringle MS, Chauvin A.
PMID: 15800621
Nature. 2005 Mar 31;434(7033):633-6. doi: 10.1038/nature03431.

Reversals of the Earth's magnetic field reflect changes in the geodynamo--flow within the outer core--that generates the field. Constraining core processes or mantle properties that induce or modulate reversals requires knowing the timing and morphology of field changes that...

Showing 1 to 12 of 240 entries