منابع مشابه
Photoabsorption Cross Section Revisited: Correlated HH versus Effective Interaction HH
Two conceptually different hyperspherical harmonics expansions are used for the calculation of the total He photoabsorption cross section. Besides the well known method of CHH the recently introduced effective interaction approach for the hyperspherical formalism is applied. Semi-realistic NN potentials are employed and final state interaction is fully taken into account via the Lorentz integra...
متن کاملInfrared Imaging of Hh 25/26 and Hh 42/128
Images of the HH 25/26 and HH 42/128 systems obtained in the emission lines of H 2 1-0 S(1), Fe II] 1.64 m, and a 2.22 m continuum lter are reported. A series of aligned H 2 knots has been discovered in association with HH 26, along with a new infrared continuum source located at the center of a previously-discovered CO outtow which may power the HH 26 knots. HIRES images from IRAS are used to ...
متن کاملThe Optical Proper Motions of Hh 7-11 and Cep E (hh 377)
A key ingredient in understanding the dynamics of stellar outflows is their proper motion. We have used optical images in the [SII] emission at 6717/31 Å and the red Digitized Palomar Observatory Sky Survey (DSS) plates to determine the proper motion of HH 7-11 system and the optical knot of Cep E (HH 377). The DSS plate measurements span nearly 37 years for both HH 7-11 and HH 377 and have wid...
متن کاملPlanarian Hh signaling regulates regeneration polarity and links Hh pathway evolution to cilia.
The Hedgehog (Hh) signaling pathway plays multiple essential roles during metazoan development, homeostasis, and disease. Although core protein components are highly conserved, the variations in Hh signal transduction mechanisms exhibited by existing model systems (Drosophila, fish, and mammals) are difficult to understand. We characterized the Hh pathway in planarians. Hh signaling is essentia...
متن کاملHH-XRF and HH-LIBS for alloy analysis Choosing the Right Tool for the Right Job
Handheld X-ray fluorescence spectrometry (HH-XRF) has been established as the gold standard method for in-situ elemental determination in metals and alloys in the last 10 years. More than 5,000 analyzers are sold yearly worldwide for scrap metals sorting and positive material identification (PMI). PMI is a quality assurance tool consisting of the identification of alloy grades in various indust...
متن کاملhh j j production at the LHC
The search for di-Higgs production at the LHC in order to set limits on the Higgs trilinear coupling and constraints on new physics is one of the main motivations for the LHC high-luminosity phase. Recent experimental analyses suggest that such analyses will only be successful if information from a range of channels is included. We therefore investigate di-Higgs production in association with t...
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عنوان ژورنال:
پژوهش های فلسفی – کلامیجلد ۱، شماره ۱، صفحات ۲۱-۳۶
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