Results 31 to 40 of about 923,263 (264)
Absolute ages of globular clusters and the age of the universe
The Astrophysical Journal, 1995 The main sequence turnoff luminosity is the best stellar `clock' which can be used to determine the absolute ages of globular clusters. This is due to the fact that it is generally assumed that the luminosity and lifetimes of main sequence globular cluster stars are independent of the properties of stellar convection and atmospheres, two areas of ...
openaire +2 more sources
The impacts of age and absolute threshold on binaural lateralization [PDF]
Proceedings of Meetings on Acoustics, 2009 Listeners varying in audiometric thresholds (70-dB range) and in age (52-year range) lateralized complex tones relative to a diotic standard. Stimuli were composed of one, two, three, or six tones amplitude modulated at a rate of 75 Hz. Carrier frequencies were selected from a set of seven values (roughly log-spaced between 700 and 7000 Hz) and ...
Frederick J. Gallun +2 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk +10 more
wiley +1 more source
Timing of the Baltic Ice Lake in the eastern Baltic [PDF]
Bulletin of the Geological Society of Finland, 2013 A shoreline database for the Baltic, covering the Late Weichselian and Holocene, was compiled. The database includes about 1600 sites from Estonia, Latvia, Lithuania, Fin- land, NW Russia, Poland, Sweden and was used to create a GIS-based ...
J. Vassiljev, L. Saarse
doaj +1 more source
‘Absolute’ Age: a Meaningless Term [PDF]
Nature, 1962 I WISH to appeal to my fellow geologists and workers in the rapidly growing subject of geochronology to discontinue a habit or fashion which is both unnecessary and misleading. I refer to the habit of calling radiometric ages ‘absolute’ ages. An age does not become ‘absolute’ by virtue of being expressed in units of time such as a year.
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source
On the deglaciation chronology of the Palivere ice-marginal zone, northern Estonia [PDF]
Bulletin of the Geological Society of Finland, 2012 This paper presents new bio-, litho- and chronostratigraphical evidence from two adjacent sediment sequences of the Tõdva and Saku basins, northern Estonia that refine the age estimate of the Palivere ice-marginal zone and the deglaciation history of ...
L. Saarse +4 more
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye +33 more
wiley +1 more source
Structural evolution of the Vuotso area, Finnish Lapland [PDF]
Bulletin of the Geological Society of Finland, 2003 The Vuotso area is structurally interesting because the fold interference pattern in rocks of central Lapland changes into thrust-related foliation of the Lapland Granulite Belt.
M. Nironen, I. Mänttäri
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo +5 more
wiley +1 more source