Results 51 to 60 of about 32,731 (262)

Variance risk premiums in foreign exchange markets [PDF]

Journal of Empirical Finance, 2013
Abstract Based on the theory of static replication of variance swaps we assess the sign and magnitude of variance risk premiums in foreign exchange markets. We find significantly negative risk premiums when realized variance is computed from intraday data with low frequency.
Ammann, Manuel, Buesser, Ralf
openaire   +4 more sources

Patient‐Derived 3D‐Bioprinted Intrahepatic Cholangiocarcinoma Models Recapitulate Tumor Autologous Traits and Predict Personalized Adjuvant Therapy

Advanced Science, EarlyView.
Leveraging 3D bioprinting, this study establishes patient‐derived in vitro models of intrahepatic cholangiocarcinoma. These models faithfully recapitulate the histopathology, molecular profiles, and genomic characteristics of the original patient tumors.
Yuce Lu, Liwei Du, Minghao Sun, Kai Zhang, Mingchang Pang, Shangze Jiang, Jiaxun Dong, Xiyue Liu, Bao Jin, Fu Xu, Hang Sun, Jiangang Zhang, Huiyu Yang, Xiaobo Yang, Xin Lu, Yiyao Xu, Haitao Zhao, Shunda Du, Xinting Sang, Yongchang Zheng, Lei Zhang, Xueshuai Wan, Huayu Yang, Yilei Mao   +23 more
wiley   +1 more source

A High‐Performance and Fully Recyclable Supramolecular Nanofibrous Membrane for Multifunctional Air Filtration

Advanced Science, EarlyView.
A green, thermoreversible self‐assembly strategy yields a multifunctional and recyclable supramolecular nanofibrous membrane. Graphene oxide (GO) nanosheet acts as a heterogeneous nucleation‐templating agent, simultaneously modulating the supramolecular crystal packing while tailoring the nanofibrous architecture for elite performance.
Wenjing Sun, Ding Yuan, Jiaqi Wan, Junyu Chen, Zhen Yan, Yinuo Yan, Senjie Dong   +6 more
wiley   +1 more source

Multi‐Functional Adaptive Interfaces for Next‐Generation Wearable and Implantable Bioelectronics

Advanced Science, EarlyView.
Adaptive Biointerfaces: A comprehensive overview of next‐generation bioelectronics is presented, highlighting mechano‐adaptive and biophysiologically adaptive interfaces that enable stable, long‐term integration with living tissues. As illustrated in the image, adaptive interface strategies, including mechano‐adaptivity (e.g., injectability, shape ...
Jinhong Park, Junyoung Ha, Do Gyun Kim, Soo‐Hong Lee, Hyun‐Do Jung, Ja Hoon Koo, Gi Doo Cha, Dong Chan Kim   +7 more
wiley   +1 more source

Meta-Analysis: Determining Hedging on Foreign Exchange

Indonesian Interdisciplinary Journal of Sharia Economics
Hedging is an action taken by investors, both individuals and governments and companies to protect value due to the risk of price changes. Investors and companies must have good risk management.
Tri Buana Wira Pradhani, Sariah Sariah, Hwihanus Hwihanus, Tri Ratnawati   +3 more
doaj   +1 more source

Injectable Porous Microspheres Loaded With Biomimetic Preconditioned Bone Marrow Mesenchymal Stem Cell‐Derived Exosomes for Vascularized Bone Regeneration

Advanced Science, EarlyView.
Schematic illustration of injectable PDA‐modified GelMA microspheres loaded with BioPre‐Exos for vascularized bone regeneration. ABSTRACT Critical‐sized bone defects remain a highly challenging clinical problem due to insufficient intrinsic self‐healing capacity.
Lijun Li, Hao Zhang, Lingtong Sun, Yingfeng Su, Yang Xu, Jian Huang, Jingchao Wen, Jinjin Zhu, Jianjun Ma, Wenbin Xu   +9 more
wiley   +1 more source

Material Strategies for Stimulation and Recording in Neural Biocomputing Platforms

Advanced Electronic Materials, EarlyView.
Material strategies enabling stimulation and recording are central to neural biocomputing systems. This review examines how electronic materials govern the encoding of inputs and decoding of outputs in living neural networks. Advances in electrical, optical, and multimodal interfaces highlight emerging design principles for biocomputing platforms ...
Sehong Kang, Junggeon Park, Aryaman Joshi, Rakid Haque, Gyu Weon Hwang, Hyunjoon Kong   +5 more
wiley   +1 more source

Optimal Foreign Exchange Portfolio for Iran [PDF]

فصلنامه پژوهش‌های اقتصادی ایران, 2010
Management of Foreign exchange reserves is important for every country. This matter is also of particular interest for Iran as an Oil exporting developing country. This paper designs an optimal portfolio for that part of foreign exchange incomes which is
Zahra Nasrollahi, Mina Shahviri,
doaj  

Foreign Exchange Risk in Albania

Economicus, 2020
Foreign exchange risk is the potential for loss due to an adverse change in foreign exchange rates, and applies to all exchange rate–related products whose positions are valued in a currency that differs from the bank’s reporting currency. Eventual movements in the exchange rate are a risk for investors and businesses with international operations ...
openaire   +1 more source

Foreign labor, peer‐networking and agricultural efficiency in the Italian dairy sector

Agribusiness, EarlyView.
Abstract While the presence of immigrants in the agricultural sector is widely acknowledged, the empirical evidence on its economic consequences is lacking, especially from a microeconomic perspective. Using the Farm Accountancy Data Network panel data for Italian dairy farms in the period 2008–2018, the present study investigates the relationship ...
Federico Antonioli, Simone Severini, Mauro Vigani   +2 more
wiley   +1 more source