نتایج جستجو برای: رویکرد cds

تعداد نتایج: 52668  

2013
Marti G. Subrahmanyam Yongjun Tang Sarah Qian Wang

The introduction of credit default swaps (CDS) trading on an underlying firm may influence its future access to external financing and, hence, its precautionary demand for cash. In this paper, we empirically estimate this effect of CDS trading, using a comprehensive sample of North American corporate CDS introductions between 1997 and 2009. We show that corporate cash holdings, as a proportion ...

Journal: :The journal of contemporary dental practice 2011
Raed O Abu Hantash Mahmoud K AL-Omiri Mohammad Abu Yunis Najla Dar-Odeh Edward Lynch

OBJECTIVES To investigate the association between satisfaction with conventional complete denture prostheses (CDs), impacts of CDs on daily living and personality profiles. MATERIALS AND METHODS Fifty-six patients (28 males and 28 females; mean age 53.79 ± 7.762 years) with fitted upper and lower removable CDs were recruited for this study. Clinical success of CDs was assessed according to sp...

2014
Joan S. Ash Dean F. Sittig Carmit K. McMullen Adam Wright Arwen Bunce Vishnu Mohan Deborah J. Cohen Blackford Middleton

BACKGROUND Computerized clinical decision support (CDS) can help hospitals to improve healthcare. However, CDS can be problematic. The purpose of this study was to discover how the views of clinical stakeholders, CDS content vendors, and EHR vendors are alike or different with respect to challenges in the development, management, and use of CDS. METHODS We conducted ethnographic fieldwork usi...

Journal: :Journal of colloid and interface science 2016
Mohammad Ehtisham Khan Mohammad Mansoob Khan Moo Hwan Cho

This paper reports cadmium sulphide nanoparticles-(CdS NPs)-graphene nanocomposite (CdS-Graphene), prepared by a simple method, in which CdS NPs were anchored/decorated successfully onto graphene sheets. The as-synthesized nanocomposite was characterized using standard characterization techniques. A combination of CdS NPs with the optimal amount of two-dimensional graphene sheets had a profound...

Journal: :Journal of speech, language, and hearing research : JSLHR 2010
Linda R Watson Grace T Baranek Jane E Roberts Fabian J David Twyla Y Perryman

PURPOSE To determine the extent to which behavioral and physiological responses during child-directed speech (CDS) correlate concurrently and predictively with communication skills in young children with autism spectrum disorders (ASD). METHOD Twenty-two boys with ASD (initial mean age: 35 months) participated in a longitudinal study. At entry, behavioral (i.e., percentage looking) and physio...

2010
Yongjun Tang Sarah Qian Wang Anthony Saunders Hao Zhou Haibin Zhu

Concerns have been raised, especially since the global financial crisis, about whether trading in credit default swaps (CDS) increases the credit risk of the reference entities. This study examines this issue by quantifying the impact of CDS trading on the credit risk of firms. We use a unique, comprehensive sample covering 901 CDS introductions on North American corporate issuers between June ...

Journal: :The Analyst 2015
Abhay Sachdev P Gopinath

In the present study, a facile one-step hydrothermal treatment of coriander leaves for preparing carbon dots (CDs) has been reported. Optical and structural properties of the CDs have been extensively studied by UV-visible and fluorescence spectroscopic, microscopic (transmission electron microscopy, scanning electron microscopy) and X-ray diffraction techniques. Surface functionality and compo...

2002
Peng Zhang P.-S. Kim S. J. Naftel T. K. Sham

Electrochemically deposited CdS nanoparticles (NPs) were formed using porous silicon (PS) as a substrate/electrode. The structure, electronic behavior of the CdS NPs and the interaction between CdS-PS were systematically examined using electron microscope, X-ray diffraction and X-ray absorption fine structure (XAFS) at S K-edge and Si K-edge. The optical luminescence behavior of the nanocomposi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کردستان - دانشکده علوم پایه 1391

در این پروژه، نانوذرات نیمه رسانای zns، cds و cus، همچنین نانوکامپوزیت های cds/zns، cds/cus و zns/cus پوشش داده شده با عامل پوششی پلی وینیل پیرولیدون( pvp )با روش تجزیه گرمایی تهیه و شناسایی می شوند. در این مطالعه سعی بر آن است که با استفاده از عامل پوششی pvp نانوذراتی در اندازه های بسیار کوچک (زیر 10 نانومتر) با پایداری بالا تهیه شود. سپس مقدار انرژی باندگپ آن ها تعیین شود. همچنین با سنتز نانو...

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