نتایج جستجو برای: peak lf

تعداد نتایج: 147984  

Journal: :Astronomy and Astrophysics 2021

A pioneering study showed that the fine structure in luminosity function (LF) of young star clusters contains information about evolutionary stage (age) and composition stellar population. The notable features include H-peak, which is result onset hydrogen burning turning pre-main sequence stars into main stars. feature moves toward faint end LF, eventually disappears as population evolves. Ano...

2008
R. Salvaterra C. Guidorzi S. Campana G. Chincarini G. Tagliaferri

We compute the luminosity function (LF) and the formation rate of long gamma ray bursts (GRBs) by fitting the observed differential peak flux distribution obtained by the BATSE satellite in two different scenarios: i) the GRB luminosity evolves with redshift and ii) GRBs form preferentially in low–metallicity environments. In both cases, model predictions are consistent with the Swift number co...

2009
Scott M. Croom Gordon T. Richards Tom Shanks Brian J. Boyle Michael A. Strauss Adam D. Myers Robert C. Nichol Kevin A. Pimbblet Nicholas P. Ross Donald P. Schneider Robert G. Sharp David A. Wake

We present the quasi-stellar object (QSO) luminosity function (LF) of the completed 2dF–SDSS LRG and QSO (2SLAQ) survey, based on QSOs photometrically selected from Sloan Digital Sky Survey (SDSS) imaging data and then observed spectroscopically using the 2dF instrument on the Anglo-Australian Telescope. We analyse 10 637 QSOs in the redshift range 0.4 < z < 2.6 to a g-band flux limit of 21.85 ...

Lactoferrin (Lf) is an iron-binding multi-functional glycoprotein which has numerous physiological functions such as iron transportation, anti-microbial activity and immune response. In this study, different in silico approaches were exploited to investigate Lf protein properties in a number of mammalian species. Results showed that the iron-binding site, DNA and RNA-binding sites, signal pepti...

1999
Guido De Marchi

Accurate luminosity functions (LF) for a dozen globular clusters have now been measured at or just beyond their half-light radius using HST. They span almost the entire cluster main sequence (MS) below 0.75M⊙ . All these clusters exhibit LF that rise continuously from an absolute I magnitude MI ≃ 6 to a peak at MI ≃ 8.5−9 and then drop with increasing MI . Transformation of the LF into mass fun...

2017
Mike Armour Hannah G Dahlen Xiaoshu Zhu Cindy Farquhar Caroline A Smith

OBJECTIVES We examined the effect of changing treatment timing and the use of manual, electro acupuncture on the symptoms of primary dysmenorrhea. METHODS A randomised controlled trial was performed with four arms, low frequency manual acupuncture (LF-MA), high frequency manual acupuncture (HF-MA), low frequency electro acupuncture (LF-EA) and high frequency electro acupuncture (HF-EA). A man...

2016
Eva Katharina Masel Patrick Huber Tobias Engler Herbert Hans Watzke

BACKGROUND Decisions on the intensity of analgesic therapy and judgments regarding its efficacy are difficult at the end of life, when many patients are not fully conscious and pain is a very common symptom. In healthy individuals and in postoperative settings, nociception and subsequent pain relief have been shown to induce changes in the autonomic nervous system (ANS), which can be detected b...

زیبائی, سعید, شادان, بهناز, ضیاء جهرمی, نوشا,

Background and purpose: Osteoporosis is a common disease characterized by low bone mass that can harm health. Lactoferrin increase osteogenesis. PerFlourooctyl Bromide is a neutral particle that used as a drug carier. Materials and methods: In this study, lactoferrin (LF) of Camel milk were isolated. PFOB-NEP was prepared using an oil-in-water emulsion method (O/W). and then evaluated by The...

Journal: :Journal of the American College of Cardiology 1999
S Joho H Asanoi H A Remah A Igawa T Kameyama T Nozawa K Umeno H Inoue

OBJECTIVES We assessed time-varying spectral components of heart rate and left ventricular (LV) pressure variability during coronary angioplasty to elucidate dynamic autonomic responses to transient myocardial ischemia. BACKGROUND Sympathoexcitatory reflexes elicited by acute coronary occlusion are rarely addressed in the clinical settings because of a lack of technique to monitor transient c...

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