Results 91 to 100 of about 743,972 (230)

Multicomponent Bright Solitons in F = 2 Spinor Bose-Einstein Condensates

, 2007
We study soliton solutions for the Gross--Pitaevskii equation of the spinor Bose--Einstein condensates with hyperfine spin F=2 in one-dimension. Analyses are made in two ways: by assuming single-mode amplitudes and by generalizing Hirota's direct method ...
\cabrowska-Wüster B. J. D, Burger S., Chang M.-S., Ciobanu C. V., Crosignani B., Denschlag J., Diener R. B., Görlitz A., Hirota R., Ho T.-L., Ieda J., Ieda J., Ieda J., Khaykovich L., Kuwamoto T., Li L., Manakov S. V., Miesner H.-J., Ohmi T., Pogosov W. V., Saito H., Schmaljohann H., Stamper-Kurn C. M., Stenger J., Strecker K. E., Tsuchida T., Tsuchida T., Uchiyama M., Ueda M., Wadati M., Widera A., Zakharov V. E., Zakharov V. E., Zakharov V. E., Zhang W.   +34 more
core   +1 more source

A Lecture on THE PSYCHOLOGY OF CONJOINED TWINS: A STUDY OF MONSTERHOOD [PDF]

, 1929
J. Bland-Sutton
openalex   +1 more source

Investigating the Heterogeneity of “Study Twins”

Biometrical Journal
ABSTRACTMeta‐analyses are commonly performed based on random‐effects models, while in certain cases one might also argue in favor of a common‐effect model. One such case may be given by the example of two “study twins” that are performed according to a common (or at least very similar) protocol.
Christian Röver, Tim Friede
openaire   +4 more sources

The Health Returns to Education: What Can We Learn from Twins? [PDF]

This paper estimates the health returns to education, using data on identical twins. I adopt a twin-differences strategy in order to obtain estimates that are not biased by unobserved family background and genetic traits that may affect both education ...
Lundborg, Petter
core  

Making deeper sense in the midst of great busyness: a study of and with third sector CEOs [PDF]

, 2008
This paper provides the background to a study from which sample findings will be presented and discussed at the ARVOVA 2008 conference in Philadelphia.
Brewster, Richard, Paton, Rob
core  

Chinese Studies and the Disciplines — the Twins Shall Meet [PDF]

, 1964
Kung-chuan Hsiao
openalex   +1 more source

Genes, Economics, and Happiness [PDF]

We explore the influence of genetic variation on subjective well-being by employing a twin design and genetic association study. In a nationally-representative twin sample, we first show that about 33% of the variation in life satisfaction is explained ...
Bruno S. Frey, James H. Fowler, Jan-Emmanuel De Neve, Nicholas A. Christakis   +3 more
core  

Novel epigenetic biomarkers for hematopoietic cancer found in twins

Acta Oncologica
Background and purpose: This article aims to identify epigenetic markers and detect early development of hematopoietic malignancies through an epigenome wide association study of DNA methylation data.
Signe B. Clemmensen, Henrik Frederiksen, Jonas Mengel-From, Aino Heikkinen, Jaakko Kaprio, Jacob vB Hjelmborg   +5 more
doaj   +1 more source

Twin-to-twin transfusion syndrome and coronavirus disease 2019: impact on diagnosis, referral, eligibility for fetoscopic laser therapy, and outcomesAJOG Global Reports at a Glance

AJOG Global Reports, 2022
BACKGROUND: Because of the progressive nature of twin-to-twin transfusion syndrome, difficulties in healthcare access during the COVID-19 pandemic may lead to delayed diagnosis and referral to fetal surgery centers, which may have repercussions on ...
Hugo López-Briones, MD, Rosa Villalobos-Gómez, MD, Eréndira Chávez-González, MD, Miguel Martínez-Rodríguez, MD, Antonio Helue-Mena, MD, Alma Gámez-Varela, MD, Rogelio Cruz-Martinez, MD, PhD   +6 more
doaj  

Unobserved heterogeneity in a model with cure fraction applied to breast cancer [PDF]

We suggest a cure-mixture model to analyze bivariate time-to-event data, as motivated by the paper of Chatterjee and Shih (2001, Biometrics 57, 779 - 786), but with a simpler estimation procedure and the correlated gamma-frailty model instead of the ...
Anatoli I. Yashin, Andreas Wienke, Paul Lichtenstein   +2 more
core