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Tracking error: ex-ante versus ex-post measures [PDF]
, 2001 In this paper we show that ex-ante and ex-post tracking errors must necessarily differ, since portfolio weights are ex-post stochastic in nature. In particular, ex-post tracking error is always larger than ex-ante tracking error.
Satchell, S. (Stephen), Hwang, Soosung
core
GOLD AND FOREIGN EXCHANGE RE-SERVES AND THE DOLLAR EX-CHANGE RATE: A STUDY OF THE RE-LATIONSHIP
ECONOMIC VECTORThe paper examines the significance of national gold and foreign currency re-serves and draws conclusions about the reorientation of the Russian economy to-wards a sovereign course aimed at strengthening financial independence. The accumulation of gold and foreign currency reserves is considered as one of the fac-tors contributing to the country's ...
M.A. Barinov, O.S. Vakulenko
openaire +1 more source
Molecular Oncology, EarlyView.Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat +8 more
wiley +1 more source
Molecular Oncology, EarlyView.Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau +36 more
wiley +1 more source
Molecular Oncology, EarlyView.Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang +12 more
wiley +1 more source
Frontiers in Endocrinology, 2020 Weight loss induced by decreased energy intake (diet) or exercise generally has favorable effects on insulin sensitivity and cardiometabolic risk. The variation in these responses to diet-induced weight loss with or without exercise, particularly in ...
Andrea M. Brennan +5 more
doaj +1 more source
Molecular Oncology, EarlyView.Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch +13 more
wiley +1 more source
Oil Price Flux and Macroeconomy of Oil Exporters
Journal of Accounting and Finance in Emerging Economies, 2020 Oil is an important energy source, embodies the largest commodity market in the world. Global economic performance has been highly correlated with oil price changes.
Madiha Riaz +3 more
doaj +1 more source
Molecular Oncology, EarlyView.We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric +10 more
wiley +1 more source
Plant Stress, 2023 Drought is an important stress factor with increased severity due to climate change. Previous research characterised drought-tolerant sugarcane epimutants over several rounds of ex vitro screening on vegetatively derived survivors. In the present work, a
Motselisi Jane Koetle +2 more
doaj +1 more source