Results 61 to 70 of about 230,550 (282)

Impact of the Global Crisis on SME Internal vs. External Financing in China [PDF]

open access: yesBanking and Finance Review, 9(1) (2017) 1-17, 2017
Changes in the capital structure before and after the global financial crisis for SMEs are studied, emphasizing their financing problems, distinguishing between internal financing and external financing determinants. The empirical research bears upon 158 small and medium-sized firms listed on Shenzhen and Shanghai Stock Exchanges in China over the ...
arxiv  

Block-diagonal idiosyncratic covariance estimation in high-dimensional factor models for financial time series [PDF]

open access: yesJournal of Computational Science, Volume 81, 2024, 102348
Estimation of high-dimensional covariance matrices in latent factor models is an important topic in many fields and especially in finance. Since the number of financial assets grows while the estimation window length remains of limited size, the often used sample estimator yields noisy estimates which are not even positive definite.
arxiv   +1 more source

The roles and applications of extracellular vesicles in cancer

open access: yesMolecular Oncology, EarlyView.
Extracellular vesicles (EVs) are minute versions of cells limited by a lipid bilayer containing cytoplasm from the cell that releases them, but without a nucleus and thus unable to self‐reproduce. EVs contain multiple molecules (proteins, lipids, glycans, and nucleic acids) they can induce complex responses in cells.
Clotilde Théry, Daniel Louvard
wiley   +1 more source

Women and inter-organizational boundary spanning: A way into upper management?

open access: yesEuropean Research on Management and Business Economics, 2017
This study analyses the presence of gender segregation in Spanish exporting firms. Both women's access to managerial positions (vertical segregation) and women's achievement of managerial roles that are socially associated with communal attributes ...
Pedro Araújo-Pinzón   +3 more
doaj   +1 more source

Mechanism of information transmission from a spot rate market to crypto-asset markets [PDF]

open access: yesarXiv, 2022
We applied the SVAR-LiNGAM to illustrate the causal relationships between the spot exchange rate, and three crypto-asset exchange rates, Bitcoin, Ethereum, and Ripple. It was notable that the causal order, the EUR_USD spot rate->Bitcoin->Ethereum->Ripple, was obtained by this approach. All the instantaneous effects were strongly positive.
arxiv  

Highly multiplexed digital PCR assay for simultaneous quantification of variant allele frequencies and copy number alterations of KRAS and GNAS in pancreatic cancer precursors

open access: yesMolecular Oncology, EarlyView.
Combining melting curve analysis enhances the multiplexing capability of digital PCR. Here, we developed a 14‐plex assay to simultaneously measure single nucleotide mutations and amplifications of KRAS and GNAS, which are common driver genes in pancreatic cancer precursors. This assay accurately quantified variant allele frequencies in clinical samples
Junko Tanaka   +10 more
wiley   +1 more source

On the positivity of local mild solutions to stochastic evolution equations [PDF]

open access: yesarXiv, 2019
We provide sufficient conditions on the coefficients of a stochastic evolution equation on a Hilbert space of functions driven by a cylindrical Wiener process ensuring that its mild solution is positive if the initial datum is positive. As an application, we discuss the positivity of forward rates in the Heath-Jarrow-Morton model via Musiela's ...
arxiv  

Exploration of heterogeneity and recurrence signatures in hepatocellular carcinoma

open access: yesMolecular Oncology, EarlyView.
This study leveraged public datasets and integrative bioinformatic analysis to dissect malignant cell heterogeneity between relapsed and primary HCC, focusing on intercellular communication, differentiation status, metabolic activity, and transcriptomic profiles.
Wen‐Jing Wu   +15 more
wiley   +1 more source

The Urgency of Strengthening Appraisal Regulations to Realize a Legal Protection for Appraiser

open access: yesJurnal Media Hukum, 2019
To provide legal protection and legal certainty for service users and Appraisers, the Government, in this case, the Ministry of Finance requires the Public Appraisal profession to obtain a permit in supporting financial service sector.
Lastuti Abubakar, Tri Handayani
doaj   +1 more source

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