Results 51 to 60 of about 19,542 (306)

Polycyclic aromatic hydrocarbon emission toward the Galactic bulge [PDF]

open access: yes, 2018
We examine polycyclic aromatic hydrocarbon (PAH), dust and atomic/molecular emission toward the Galactic bulge using Spitzer Space Telescope observations of four fields: C32, C35, OGLE and NGC 6522. These fields are approximately centered on (l, b) = (0.0{\deg}, 1.0{\deg}), (0.0{\deg}, -1.0{\deg}), (0.4{\deg}, -2.1{\deg}) and (1.0{\deg}, -3.8{\deg ...
arxiv   +1 more source

Production of diverse brGDGTs by Acidobacterium Solibacter usitatus in response to temperature, pH, and O2 provides a culturing perspective on brGDGT proxies and biosynthesis

open access: yesGeobiology, Volume 21, Issue 1, Page 102-118, January 2023., 2023
Abstract Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are bacterial membrane lipids that are frequently employed as paleoenvironmental proxies because of the strong empirical correlations between their relative abundances and environmental temperature and pH.
Toby A. Halamka   +6 more
wiley   +1 more source

Effect of Higher Education on Economic Growth in Iran [PDF]

open access: yesپژوهشهای اقتصادی, 2010
There are many factors affecting economic growth. Based on the literature, the effects of these factors such as higher education are mainly examined using endogenous economic growth theories.
Mojtaba Almasi   +2 more
doaj  

Impact of refugee population on development: A comparative analysis for the case of host economies

open access: yesReview of Economic Perspectives, 2018
This study was carried out to investigate the relationship between refugees and development in host economies from a macroeconomic point of view. The results obtained show that this relationship is non-linear.
Kouni Mohamed
doaj   +1 more source

Measurement of K^+K^- production in two-photon collisions in the resonant-mass region [PDF]

open access: yesEur.Phys.J.C32:323-336,2003, 2003
K^+K^- production in two-photon collisions has been studied using a large data sample of 67 fb^{-1} accumulated with the Belle detector at the KEKB asymmetric e^+e^- collider. We have measured the cross section for the process gamma gamma -> K^+ K^- for center-of-mass energies between 1.4 and 2.4 GeV, and found three new resonant structures in the ...
arxiv   +1 more source

Developing Indonesian version of childbirth self-efficacy inventory (Cbsei)-C32

open access: yes, 2019
Introduction: Women readiness and self-efficacy for pregnancy and childbirth is an important issue which usually assessed by using CBSEI-32 but currently no evaluation is ever conducted nor Indonesian version of this instrument ever developed to enhance ...
Farida Kartini
semanticscholar   +1 more source

How Google Trends can improve market predictions— the case of the Warsaw Stock Exchange

open access: yesEconomics and Business Review, 2022
The aim of this paper is to investigate interdependencies between the WIG20 index and economic policy uncertainty (EPU) related keywords quantified by a Google Trends search index.
Kropiński Paweł, Anholcer Marcin
doaj   +1 more source

b-tagging in DELPHI at LEP [PDF]

open access: yesEur.Phys.J.C32:185-208,2004, 2003
The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which relies mostly on the vertex detector. Additional information, such as the mass of particles associated to a secondary vertex, significantly improves the ...
arxiv   +1 more source

Endogenous capital stock and depreciation in the United States

open access: yesJournal of Public Economic Theory, Volume 25, Issue 1, Page 139-167, February 2023., 2023
Abstract There are several puzzles and unresolved problems in empirical economics that depend on the reliability of capital series. Productivity paradoxes, and certain recent trends in the US macroeconomic data, cannot be addressed correctly with the available standard measures of capital stock.
F. J. Escribá‐Pérez   +2 more
wiley   +1 more source

Softening the Naturalness Problem [PDF]

open access: yesEur.Phys.J. C32 (2003) 121-126, 2003
It was observed by Veltman a long time ago that a special value for the Higgs boson mass could lead to a cancellation of the quadratically divergent corrections to the Higgs boson's squared mass which appear at one loop. We present a class of low energy models that allow to soften the naturalness problem in the sense that there can be a cancellation of
arxiv   +1 more source

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