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Journal articles on the topic 'Return-to-base model'

Author: Grafiati

Published: 31 August 2023

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1

Cooray, Vernon, Marcos Rubinstein, and Farhad Rachidi. "Modified Transmission Line Model with a Current Attenuation Function Derived from the Lightning Radiation Field—MTLD Model." Atmosphere 12, no. 2 (2021): 249. http://dx.doi.org/10.3390/atmos12020249.

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In return strokes, the parameters that can be measured are the channel base current and the return stroke speed. For this reason, many return stroke models have been developed with these two parameters, among others, as inputs. Here, we concentrate on the current propagation type engineering return stroke models where the return stroke is represented by a current pulse propagating upwards along the leader channel. In the current propagation type return stroke models, in addition to the channel base current and the return stroke speed, the way in which the return stroke current attenuates along

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2

Kiky, Andreas. "Analisis Sektor Industri Pertanian pada Model CAPM." ULTIMA Management 7, no. 1 (2015): 14–24. http://dx.doi.org/10.31937/manajemen.v7i1.921.

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The most popular Asset Pricing that has been known for long time was CAPM. This model offers very simple approach and strong fundamental theory for financial literature. Base of previous research using time-series data, this model show very good explanation in explain variation of portfolio return. Aim of this research is to find some pattern in different industrial sector, especially agriculture sector. Keywords: CAPM, Empirical Evidence, Abnormal Return, Stock Return

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Javor, V. "Modeling of Lightning Strokes Using Two-Peaked Channel-Base Currents." International Journal of Antennas and Propagation 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/318417.

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Lightning electromagnetic field is obtained by using “engineering” models of lightning return strokes and new channel-base current functions and the results are presented in this paper. Experimentally measured channel-base currents are approximated not only with functions having two-peaked waveshapes but also with the one-peaked function so as usually used in the literature. These functions are simple to be applied in any “engineering” or electromagnetic model as well. For the three “engineering” models: transmission line model (without the peak current decay), transmission line model with lin

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Shaw, Lynn, and Helene Polatajko. "An Application of the Occupation Competence Model to Organizing Factors Associated with Return to Work." Canadian Journal of Occupational Therapy 69, no. 3 (2002): 158–67. http://dx.doi.org/10.1177/000841740206900306.

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The variations in return to work outcomes for ill or injured persons experiencing health leaves are complex. However, it is important to comprehend these variations in order to develop evidenced-based practice in work rehabilitation. Currently, a plethora of studies exist in the literature that have attempted to explain the variations in work outcomes. A 20-year review of the literature on work outcomes has revealed several limitations in using this knowledge in occupational therapy. The study of return to work outcomes is, for the most part, atheoretical and the knowledge base is fragmented a

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Alabdulkader, A. M., A. I. Al-Amoud, and F. S. Awad. " Optimization of the cropping pattern in Saudi Arabia using a mathematical programming sector model." Agricultural Economics (Zemědělská ekonomika) 58, No. 2 (2012): 56–60. http://dx.doi.org/10.17221/8/2011-agricecon.

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A mathematical sector model has been formulated to optimize the cropping pattern in Saudi Arabia aiming at maximizing the net annual return of the agricultural sector in Saudi Arabia and ensuring the efficient allocation of the scarce water resources and arable land among the competing crops. The results showed the potential for Saudi Arabia to optimize its cropping pattern and to generate an estimated net return equivalent to about 2.42 billion US$ per year. The optimized cropping pattern in Saudi Arabia has been coupled with about 53% saving in the water use and about 48% reduction in the ar

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Li, Ong Sheue. "TESTING FOR LINEAR AND NONLINEAR GRANGER CAUSALITY IN THE STOCK RETURN AND STOCK TRADING VOLUME RELATION: MALAYSIA AND SINGAPORE CASES." Labuan Bulletin of International Business and Finance (LBIBF) 9 (April 16, 2014): 44–57. http://dx.doi.org/10.51200/lbibf.v9i.1345.

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This study aims at examining the short-run linear and nonlinear Granger causality between stock return and trading volume in Malaysia and Singapore cases based on the Vector Autoregression (VAR) model and Taylor expansion of the nonlinear model, proposed by PÃ©guinFeissolle, et al. (2008), respectively. We find evidence of significant bidirectional nonlinear causality between returns and trading volume in Malaysia case while unidirectional nonlinear causality from trading volume to stock return in Singapore case, which may establish useful base for future empirical work in considering nonlinea

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Guo, Pan, Yanlin Jia, Junwei Gan, and Xiaofeng Li. "Optimal Pricing and Ordering Strategies with a Flexible Return Strategy under Uncertainty." Mathematics 9, no. 17 (2021): 2097. http://dx.doi.org/10.3390/math9172097.

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To coordinate the supply chain risk caused by demand uncertainty, this paper proposed a flexible return strategy under demand uncertainty, in which the retailer can choose return quantity independently by put option after the selling season, while the return quantity is usually determined by the supplier in the classical return strategy. In our novel return strategy, the exercise price is not fixed, and we developed the base model of this strategy, named the selective buyback contracts model. We have solved the optimal pricing and ordering strategies of supply chain members. Numerical studies

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Fu, Zheng Rong, Jia Xin Zhuang, and Liang Zhu Wang. "The Application of SWMM in the Analysis of a Campus Drainage System." Applied Mechanics and Materials 744-746 (March 2015): 1146–50. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1146.

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The drainage system of a part of a university campus was tapped using SWMM (Storm Water Management Model). Local drainage discharge capacity was studied under different design storm return period. Results show that flooding and overload at some junctions and in some conduits are doubled with the increase of design rain return period from one year to five year, which may deteriorate the traffic and road base.

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Arsana, I. Nengah, Irianto Irianto, and Baiq Kisnawati. "ANALISIS PENGARUH FAKTOR-FAKTOR BASE LENDING RATE TERHADAP RETURN ON EQUITY PADA KSP. MADANI NTB." Jurnal Aplikasi Akuntansi 2, no. 2 (2018): 032–58. http://dx.doi.org/10.29303/jaa.v2i2.23.

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This study entitled "Analysis of the Effects of Base Lending Rate Factors on Return On Equity On KSP. Madani NTB ". This study aims to measure the effect of partial and simultaneous variables factors Base Lending Rate (Cost of Laonable Fund, Overhead Cost, Risk Cost, Tax Rate) on Return On Equity on KSP. Madani NTB and analyze the variable Cost of Laonable Fund, Overhead Cost, Risk Cost, Tax Rate is the most dominant and significantly affect the Return On Equity on KSP. Madani NTB. The type of research used in this study is associative research. Data collection techniques conducted in th

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Petropoulos, Theofanis, Konstantinos Liapis, and Eleftherios Thalassinos. "Optimal Structure of Real Estate Portfolio Using EVA: A Stochastic Markowitz Model Using Data from Greek Real Estate Market." Risks 11, no. 2 (2023): 43. http://dx.doi.org/10.3390/risks11020043.

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The purpose of this paper is to examine the issue of portfolio optimization. Optimization consists of minimizing the risk for a given rate of return or achieving a bigger return for a given level of risk. We use historical data from the Bank of Greece to calculate the net return and the standard deviation (std) for each type of property that is available. The objective is to maximize the economic value added (EVA) of a property’s assets portfolio under a specific rate of standard deviation, following the classic Markowitz model (M-V). The stochastic procedure entry in the model uses the Monte

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Nahavandi, Nasim, Farzad Haghighi Rad, and Saeed Farokhi. "Heat Transfer Approach to Modelling and Analysis of Reverse Logistics Inventory Models." Applied Mechanics and Materials 110-116 (October 2011): 2811–20. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.2811.

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Modeling and analysis of inventory systems in reverse logistics is more complex than in forwards logistics, because in reverse logistics not only amount of demand is not clear, but also uncertainty of product return is appeared in the system. In this paper, an inventory system with the possibility of product return is modeled by means of simulation tools and then thermal equivalent of inventory model, using laws of heat transfer is developed. In order to provide the thermal equivalent, components of the inventory system are known and for each component the thermal equivalent is introduced and

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Osaragi, Toshihiro. "Accessibility Evaluation: The Effects of the Free Return System on Choice Behaviour for Public Libraries." Environment and Planning B: Planning and Design 29, no. 5 (2002): 637–54. http://dx.doi.org/10.1068/b12836.

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In the field of public library study, travel costs incurred when returning books is an important issue for the spatial distribution of users, as well as the load necessary in the process of book borrowing. In recent years, the Free Return System, which is a subsystem of Library Services, has been developed so that users can return books to any library. In this paper, a model for describing the users' choice behaviour of facilities is constructed, and a method for evaluating travel costs accrued when travelling from home to facilities is proposed. The proposed model is applied to actual data of

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Serdiuk, T. M., O. V. Zavhorodnii, and V. I. Havryliuk. "THE MEASUREMENT ELECTROMAGNETIC INTERFERENCE IN THE REVERSE TRACTION NETWORK." Science and Transport Progress, no. 29 (October 25, 2009): 134–39. http://dx.doi.org/10.15802/stp2009/13615.

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The original automated method of measurement of electrical noise in the return electric-traction network is proposed. It is realized on the base of car-laboratory “Automatics, telemechanics and communication”. The mathematic model of return electric-traction network is developed to scientific bases of automated measurement. It allows us obtaining the mathematic expressions for change of voltage and current harmonics in the rail net and taking into account the inhomogeneity of lines for the following analytic determination of a source of electric noise.

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Wang, Peng, and Zhengliang Xu. "A Novel Consumer Purchase Behavior Recognition Method Using Ensemble Learning Algorithm." Mathematical Problems in Engineering 2020 (December 19, 2020): 1–10. http://dx.doi.org/10.1155/2020/6673535.

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With the prosperous development of e-commerce platforms, consumer returns often occur. The issue of returns has become a stumbling block to the profitability of e-commerce companies. To protect consumers’ purchase rights, the Chinese government has introduced a 7-day unreasonable return policy. In order to use the return policy to attract consumers to buy, various e-commerce platforms have created a more relaxed and convenient return environment for consumers. On the one hand, the introduction of the return policy has increased customer trust in e-commerce platforms and stimulated purchase dem

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Nwachukwu, Benedict U., Conan So, William W. Schairer, et al. "Economic Decision Model for First-Time Traumatic Patellar Dislocations in Adolescents." American Journal of Sports Medicine 45, no. 10 (2017): 2267–75. http://dx.doi.org/10.1177/0363546517703347.

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Background: The surgical management of traumatic patellar dislocations in adolescents is associated with a lower rate of recurrent dislocations compared with nonoperative care. However, the attendant cost of surgery and the quality-of-life benefit of a surgical treatment strategy are unclear. Purpose: To compare the cost-utility of 3 management strategies for acute first-time patellar dislocations in adolescents: (1) nonoperative treatment only, (2) initial nonoperative treatment with surgery only for recurrent dislocations, and (3) immediate surgery. Study Design: Economic and decision analys

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Hung, Dang Ngoc, Hoang Thi Viet Ha, and Dang Thai Binh. "Application of F-Score in Predicting Fraud, Errors: Experimental Research in Vietnam." International Journal of Accounting and Financial Reporting 7, no. 2 (2017): 303. http://dx.doi.org/10.5296/ijafr.v7i2.12174.

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This study investigated the situation of frauds and errors on the financial statements of listed companies on the Ho Chi Minh Stock Exchange. Base on the research model by Dechow, Ge, & Sloan (2011), the authors added a variable is the rate of return on assets (ROA). The research data included 214 enterprises from 2014 to 2016, with 624 observations. The study results showed that three variables including accrual accounting (Rsstacc), accounts receivable customers (Chrec), percentage of asset liquidity (Softasset) have affected positively to the possibility of fraud, errors on the financia

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17

Purwono, Novi Andhi Setyo, Atiyah Barkah, Elvina Kusumawati, and Rena Ning Tyas. "The Analysis of Song Putri Reservoir Storage Area on Sedimentation Rate Using Mathematical Model Approach." Jurnal Teknik 20, no. 1 (2022): 14–30. http://dx.doi.org/10.37031/jt.v20i1.189.

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Song Putri Reservoir is an artificial reservoir with the aim of irrigation channels for rice fields and flood control. This reservoir is located in Eromoko District, Wonogiri Regency Sedimentation modeling in the Song Putri reservoir is needed to analyze the amount of sediment deposition against the Song Putri Reservoir. To analyze the flow patterns and sediment distribution that occurs in reservoirs, SMS (Surface-water Modeling System) 8.0 Softwarse is used. This study aims to determine the flow patterns and effects of sediment distribution on reservoir changes. The data used include Song Put

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18

Kosik, J. C. "A quantitative model of the magnetosphere with poloidal vector fields." Annales Geophysicae 16, no. 12 (1998): 1557–66. http://dx.doi.org/10.1007/s00585-998-1557-9.

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Abstract. A quantitative model of the magnetospheric magnetic field is developed using poloidal vector fields. This formalism is applied to the ring current region, the distant field and the return currents. The tail model is similar to the unwarped model of Tsyganenko. Several sets of coefficients are obtained for different Kp through a fit of the NSSDC data base. Experimental ΔB contours and theoretical distributed currents contours are correctly described and are Kp-dependent. Field line topology problems and poor ring current description observed in models of similar complexity are avoided

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19

Shah, Syed Alamdar Ali, Raditya Sukmana, and Bayu Arie Fianto. "Duration model for maturity gap risk management in Islamic banks." Journal of Modelling in Management 15, no. 3 (2020): 1167–86. http://dx.doi.org/10.1108/jm2-08-2019-0184.

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Purpose The purpose of this paper is to propose models of duration for maturity gap risk management in Islamic banks. Design/methodology/approach A thorough review of literature on duration modeling, duration measurement in Islamic banks and Shariah compliance has been conducted to set parameters to develop Shariah-compliant maturity gap risk management mechanism. Findings Models based on durations of earning assets and return bearing liabilities using various rates of return earned and paid, benchmark rates and industry standards commonly used by Islamic and conventional banks. Practical impl

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20

Chen, Yuechan, and Ruotong Chen. "Research on the Influence of Whether Rebalance Model on Quantitative Trading Investment Strategy Based on BEKK-MGARCH and Multi-Factor Model." BCP Business & Management 22 (July 15, 2022): 273–79. http://dx.doi.org/10.54691/bcpbm.v22i.1239.

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The quantitative strategy of asset pricing risk management is one of the financial theory research hot spots. In this paper, we use the BEKK-GARCH model based on the relative economic theory to predict the daily volatility of gold and bitcoin; Secondly, we establish a multi-factor model with 16 factors to predict the return rate of the two assets; Finally, we establish WR model to determine the optimal position proportion of investors every day. In building the model, we use the data in the previous period to continuously slide and train our model to prevent future information leakage. In data

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21

Laila, Nisful, and Mohammad Nasih. "INVESTIGATING STOCK MARKET REACTION ON JAKARTA ISLAMIC INDEX (JII) ANNOUNCEMENT." Journal of Innovation in Business and Economics 4, no. 1 (2014): 77. http://dx.doi.org/10.22219/jibe.vol4.no1.77-84.

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The aim of this research is to investigate the stock market reaction from the event when Jakarta Islamic Index (JII) is announced. The indication of stock market reaction was shown by appearing abnormal return during the date when the emiten are in the list of JII, and also several days before and after the annaouncement day. The method of this research is called event studies. Data collected from daily stock price from Indonesian Stock Exchange data base. By using market adjusted model, it was found that 21 stocks from JII latest list, during 11 days observation shown significant abnormal ret

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Reynolds, B. "Predicting soil acidification trends at Plynlimon using the SAFE model." Hydrology and Earth System Sciences 1, no. 3 (1997): 717–28. http://dx.doi.org/10.5194/hess-1-717-1997.

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Abstract. The SAFE model has been applied to an acid grassland site, located on base-poor stagnopodzol soils derived from Lower Palaeozoic greywackes. The model predicts that acidification of the soil has occurred in response to increased acid deposition following the industrial revolution. Limited recovery is predicted following the decline in sulphur deposition during the mid to late 1970s. Reducing excess sulphur and NOx deposition in 1998 to 40% and 70% of 1980 levels results in further recovery but soil chemical conditions (base saturation, soil water pH and ANC) do not return to values p

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Setyawan, I. Roni, and Sudarto ,. "DETEKSI PERBANDINGAN EKSES VOLATILITAS HARGA SERTA REAKSI EARNING TERHADAP RETURN & HARGA SAHAM SEKTOR LQ45." Media Riset Bisnis & Manajemen 6, no. 3 (2006): 269–84. http://dx.doi.org/10.25105/mrbm.v6i3.1047.

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This paper examines the validity of Efficient Market Hypothesis (EMH) valuation model through stock price volatility and earning volatility excesses. Our research also analyzes stock price reaction to earning. Based on existence of stock price mispricing; there is no investor who will obtain abnormal return if we follow EMH. We find JS is not efficient. Over the observation periods; investors have more concerned with stock market volatility than earning quality. Specifically they have remained to concern about earning quality from LQ 45 companies. Our study provides stock price prediction mode

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Sunarso, Sunarso, Eswanto Sugeng Rahayu, Taufik Taufik, and Irwan Kurniawan. "Gap Analysis Sectoral Shares Index during the Covid-19 Pandemic on the Indonesia Stock Exchange." Jurnal Pengembangan Wiraswasta 22, no. 3 (2020): 187. http://dx.doi.org/10.33370/jpw.v22i3.475.

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The investment risk during the Covid-19 pandemic is difficult to calculate due to increasing uncertainty. The research presents a model that can be used in mitigating short-term investment risk during the Covid-19 Pandemic on the capital market with sectoral gap return base on the difference price between the highest position and the lowest position. The gap may indicate volatility, volume inequality, price abnormalities, directional anomaly, and transaction conspiracy. This paper focused on how to manage portfolio investment risk based on short-term risk mitigation base on gap Analysis of sec

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Wu, Wenqing, Zhenfang Zhu, Qiang Lu, Dianyuan Zhang, and Qiangqiang Guo. "Introducing External Knowledge to Answer Questions with Implicit Temporal Constraints over Knowledge Base." Future Internet 12, no. 3 (2020): 45. http://dx.doi.org/10.3390/fi12030045.

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Knowledge base question answering (KBQA) aims to analyze the semantics of natural language questions and return accurate answers from the knowledge base (KB). More and more studies have applied knowledge bases to question answering systems, and when using a KB to answer a natural language question, there are some words that imply the tense (e.g., original and previous) and play a limiting role in questions. However, most existing methods for KBQA cannot model a question with implicit temporal constraints. In this work, we propose a model based on a bidirectional attentive memory network, which

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Omaliko, Emeka, Bridget Akwuobi, and Suday David. "Responsibility Accounting and Corporate Sustainability Growth: Evidence from Listed Deposit Money Banks in Nigeria." Journal of Social Sciences and Management Studies 2, no. 3 (2023): 34–44. http://dx.doi.org/10.56556/jssms.v2i3.538.

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This study examined the relationship between responsibility accounting and corporate sustainability growth using listed deposit money banks as a reference point. Responsibility accounting was measured using Operating Expenses (OE), Net Income (NI), Interest Expense (IE) and Return on Investment (ROI) while corporate sustainability growth was measured using corporate sustainability growth rate (CSGR). Ex post facto design was adopted and data for this study was collected from the annual accounts and reports of all listed deposit money banks on the Nigerian Exchange Group (NGX) for the period en

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Kumar, Udaya, Rosy B. Raysaha, and K. P. Dileep Kumar. "Time Domain Modelling of First Return Stroke of Lightning." Open Atmospheric Science Journal 2, no. 1 (2008): 261–70. http://dx.doi.org/10.2174/1874282300802010261.

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The four most important factors that govern the return stroke evolution can be identified as: (i) electric field due to charge distributed along the channel, (ii) transient enhancement of conductance by several orders at the bridging regime (iii) the non-linear increase in channel conductance at the propagating current front and (iv) the associated dynamic electromagnetic field which support the evolution of current along the channel. For a more realistic modelling of the lightning return stroke, the present work attempts to consider these aspects in suitable manner. The charge simulation meth

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Bouguessa, Mohamed. "A Mixture Model-Based Combination Approach for Outlier Detection." International Journal on Artificial Intelligence Tools 23, no. 04 (2014): 1460021. http://dx.doi.org/10.1142/s0218213014600215.

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In this paper, we propose an approach that combines different outlier detection algorithms in order to gain an improved effectiveness. To this end, we first estimate an outlier score vector for each data object. Each element of the estimated vectors corresponds to an outlier score produced by a specific outlier detection algorithm. We then use the multivariate beta mixture model to cluster the outlier score vectors into several components so that the component that corresponds to the outliers can be identified. A notable feature of the proposed approach is the automatic identification of outli

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Kumar, Ronald Ravinesh, Peter Josef Stauvermann, Arvind Patel, Selvin Prasad, and Nikeel N. Kumar. "Profitability Determinants of the Insurance Sector in Small Pacific Island States: A Study of Fiji’s Insurance Companies." Engineering Economics 33, no. 3 (2022): 302–15. http://dx.doi.org/10.5755/j01.ee.33.3.19583.

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We examine the determinants of profitability of insurance companies in Fiji as a reference country. In Fiji, insurance companies and the services have grown over the years. The study uses a financial evaluation approach. Profitability is measured by the return on assets and the return on equity. Using the two measures and the data published in the key disclosure statements as a mandatory requirement by the Reserve Bank of Fiji, we develop regression models. The fixed-effects regression model and a balanced panel are considered for the analysis. The sample comprises eight insurance companies’ f

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Mishra, Amritkant. "Investigation of volatility and spillover in foreign ex-change return in Indian Chinese & Malaysian market." International Journal of Accounting and Economics Studies 5, no. 2 (2017): 150. http://dx.doi.org/10.14419/ijaes.v5i2.8302.

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In this paper it is tried to make the comparison the foreign exchange return volatility in the three emerging economies of Asia. It is also endeavored to investigate the return co-movement and the volatility spillover between the foreign exchange markets of India, China and Malaysia with reference of US dollar, Indian Rupees, Chinese Yuan and Malaysian Ringgit in each other foreign exchange market to. The daily data have collected from Federal Reserve data base from April 2012 to March 2017. For analysis MGARCH model, the GARCH DCC as well as VAR model applied. The empirical result of volatili

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Shtefan, Mariya, and Viktoriya Shubina. "Econometric Assessment of the Impact of the Buyer Company’s Financial Position on the M&A Effectiveness (in the Pharmaceutical Industry)." Moscow University Economics Bulletin 2020, no. 1 (2020): 62–80. http://dx.doi.org/10.38050/01300105202014.

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This article provides the assessment of the impact of the buyer company’s financial position on the M&A effectiveness on the base of the pharmaceutical industry. We have estimated this correlation using OLS method and data for the period from 2005 to 2017. As a result, the hypothesis about the dependence of the M&A efficiency from the buyer company’s financial state has been confirmed. The developed econometric model have showed that more than 80% of variation of the cumulative abnormal return, received as a result of the transaction, is explained by growth rates of revenues and net pr

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Amiri, Mohamed Marouen, Kamel Naoui, Abdelkader Derbali, and Mounir Ben Sassi. "Investor sentiment and the risk-return tradeoff." International Journal of Financial Engineering 07, no. 04 (2020): 2050043. http://dx.doi.org/10.1142/s2424786320500437.

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The purpose of this paper is to investigate the risk-return tradeoff allowing for the presence of noise traders, i.e., a subset of investors who either base their trading strategies on sentiment or hold unjustified optimistic/pessimistic views regarding market prospects. We measure noise traders’ sentiment relying on two sets of indices, namely the Baker and Wurgler sentiment index and the Michigan Consumer Confidence Index, in the US stock market. Under the assumption of the presence of noise traders’ sentiment, the risk-return tradeoff is tested through two sets of models: Merton’s Intertemp

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Tseng, Wee, Reong, and Wu. "Considering JIT in Assigning Task for Return Vehicle in Green Supply Chain." Sustainability 11, no. 22 (2019): 6464. http://dx.doi.org/10.3390/su11226464.

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The purpose of this study was to achieve supply chain sustainability by considering Just in Time (JIT) in return vehicle usage. In response to a general increase in modern environmental awareness, consumer and government attention towards product and service compliance with environmental protection standards has increased. Consequently, manufacturers and stakeholders are pressured to use eco-friendly supply chains. In this paper, we analyzed the JIT model, a transportation network that ensure agile responses and delivery of goods in a supply chain, which reduces inventory costs. We then compar

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Norouzi, Ashraf, and Amir Albadvi. "A hybrid model for customer portfolio analysis in retailing." Management Research Review 39, no. 6 (2016): 630–54. http://dx.doi.org/10.1108/mrr-04-2014-0082.

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Purpose Marketing/finance interface and application of its new insights in marketing decisions have recently found great interest among marketing researchers and practitioners. There is a relatively large body of marketing literature about incorporating modern portfolio theory (MPT) into customer portfolio context and taking advantage of it in marketing resource allocation decisions. Previous studies have modelled customer portfolio risk in the form of historical return/profitability volatility of customer base. However, the risk is a future-oriented measure, and deals with future volatility a

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Zhao, Li Zhu, Rui Qiang Bai, and Yu Peng Shao. "Exchange Rate Risk Estimates of the Foreign Contracted Projects Based on the Model of VaR." Applied Mechanics and Materials 638-640 (September 2014): 2327–31. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.2327.

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China implements a floating exchange rate system after reforming the exchange rate mechanism in 2005. So far, nearly eight years, the RMB against the U.S. dollar increased from 8.2:1 to 6.1:1. Exchange rate risk of China's foreign contracted engineering industry has become a serious problem in the rapid development of the industry situation, this paper established exchange rate forecasting model base on the model of VaR through analysis the daily average exchange rate from July 22, 2005 to September 30, 2013, and estimate the rate of return by using the variance - covariance, historical simula

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Zahan, Nusrat, Amit Patel, Kate Atkinson, et al. "Outcomes and Cost Analysis of Virtual Fracture Clinic Management of 5th Metatarsal Base Fractures." Foot & Ankle Orthopaedics 7, no. 1 (2022): 2473011421S0051. http://dx.doi.org/10.1177/2473011421s00513.

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Category: Midfoot/Forefoot; Trauma Introduction/Purpose: Overwhelming demand for trauma services with increasing emergency department (ED) attendances, has increased pressure on fracture clinics in many units, with this demand exceeding capacity. Virtual fracture clinics (VFCs) have been shown to be safe and cost-effective in many specialties. Optimal treatment of 5th metatarsal base fractures remains controversial. Complications of base of 5th metatarsal fractures include delayed union and painful mal/non-union. Surgical fixation has been shown to enable faster return to sport, with lower fas

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Neilson, E. T., D. A. MacLean, P. A. Arp, F. R. Meng, C. P.-A. Bourque, and J. S. Bhatti. "Modeling carbon sequestration with CO2Fix and a timber supply model for use in forest management planning." Canadian Journal of Soil Science 86, Special Issue (2006): 219–33. http://dx.doi.org/10.4141/s05-081.

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Carbon (C) dynamics and forest management have become integrated in recent years, largely due to the Kyoto Protocol stipulating that forest C changes may be accountable in an emissions framework. A C stock modeling framework for forest managers is introduced in this paper. Empirical growth and yield models are used to develop sustainable timber supply for forest companies. These models use linear programming to solve the complex mathematical problem of timing and allocation of forest harvest and silviculture interventions. In this paper, we evaluated the effects of “business as usual”forest ma

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R, Amritha Sharma, Debjyoti Guha, Hitesh Agarwal, and Kothiya Meetkumar Harshadbhai. "Stock Market Prediction and Investment using Deep Reinforcement Learning- a Continuous Training Pipeline." International Journal of Engineering and Advanced Technology 10, no. 2 (2020): 93–98. http://dx.doi.org/10.35940/ijeat.b2034.1210220.

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Fluctuating nature of the stock market makes it too hard to predict the future market trends and where to invest. Hence, there is a need for a cross application backed by an ultramodern architecture. With the latest advancement in Deep Reinforcement Learning, successive practical problems can be modeled and solved with human level accuracy. In this paper, an agent-based Deep Deterministic Policy Gradient system is proposed to imitate professional trading strategies which is a state-of-the-art framework that can predict and make investment of customers money with high return. In addition to thi

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DeFrancesco, Christopher, Drake Lebrun, Joseph Molony, and Peter D. Fabricant. "COST-EFFECTIVENESS FOR RETURN-TO-PLAY (RTP) PROGRAMS AFTER ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION." Orthopaedic Journal of Sports Medicine 8, no. 4_suppl3 (2020): 2325967120S0019. http://dx.doi.org/10.1177/2325967120s00197.

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Background: Rupture of the anterior cruciate ligament (ACL) is a common injury in young athletes. Safe return-to-play (RTP, i.e. sports competition) is important to patient satisfaction, and appropriate criteria for RTP may reduce the risk of graft injury. Purpose: The purpose of this study is to assess the cost-effectiveness of a comprehensive RTP rehabilitation protocol relative to standard post-ACL reconstruction rehabilitation. Methods: A decision-analysis model was utilized to compare standard rehabilitation with an RTP program which included supplemental neuromuscular retraining, functio

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Stanley Diepiriye, Davies, and Lucky Anyike Lucky. "Corporate Characteristics and Influence on Share Based Payment of Financial Service Firms in Nigeria." Asian Finance & Banking Review 2, no. 1 (2018): 18–29. http://dx.doi.org/10.46281/asfbr.v2i1.8.

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This investigates the effect of corporate characteristics on share base payment of financial service industry in Nigeria. Objective of the study is to if internal factors affects share base payments of corporate organizations in Nigeria. We analyzed five commercial banks and five insurance firms that are quoted on the floor of Nigerian Stock Exchange. Technique adopted for sampling adopted is convenience sampling. As the nature of data is panel therefore, pooled regression, fixed and random effect tests are run. Random effect results are focused after applying Hausman’s test. From the fixed ef

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Megrey, Bernard A., Anne Babcock Hollowed, and Rebecca T. Baldwin. "Sensitivity of Optimum Harvest Strategy Estimates to Alternative Definitions of Risk." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 12 (1994): 2695–704. http://dx.doi.org/10.1139/f94-269.

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A stochastic age-structured bioeconomic simulation model was developed as a tool for evaluating economic returns to a fishery from alternative harvest policies. The model, which was applied to the Gulf of Alaska walleye pollock (Theragra chalcogramma) fishery, combines the dual goals of protection of the base stock and efficient use of the public resource into an explicit objective function. This paper presents the results of several experiments in which the simulation model is used to examine the sensitivity of the optimum harvest strategy estimates to alternative definitions of risk and assu

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Javor, Vesna, Karl Lundengård, Milica Rančić, and Sergei Silvestrov. "Modeling of artificially triggered lightning currents by multi-peaked analytically extended functions." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 4 (2018): 1354–65. http://dx.doi.org/10.1108/compel-09-2017-0380.

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Purpose This paper aims to present the approximation of lightning currents waveshapes by the multi-peaked analytically extended function (MP-AEF) for the experimentally measured channel-base currents in the artificially triggered lightning discharges. Modified transmission line model of lightning return strokes having the channel current both linearly decaying and sinusoidally changing with height (MTLSIN) is used to calculate the lightning electromagnetic field. Design/methodology/approach MP-AEF’s parameters for the artificially triggered lightning channel-base currents are calculated by usi

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Grum, Morten, and R. Hans Aalderink. "Uncertainty in return period analysis of combined sewer overflow effects using embedded Monte Carlo simulations." Water Science and Technology 39, no. 4 (1999): 233–40. http://dx.doi.org/10.2166/wst.1999.0210.

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The return periods of detrimental effects are often used as design criteria in urban storm water management. Considerable uncertainty is associated with the models used. This is either ignored or pooled with the inherent event to event variation such as rainfall depth. It is here argued that uncertainty and inherent event to event variation should be treated separately, in providing engineers and managers with the distributions of return periods. It is then possible to base management decisions on knowledge of both the expected return periods and their corresponding confidence limits. It is fu

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Albala, Adrián, and Victor Tricot Salomon. "Social Movements and Political Representation in Chile (1990–2013)." Latin American Perspectives 47, no. 4 (2019): 131–49. http://dx.doi.org/10.1177/0094582x19861699.

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Chile has witnessed an unprecedented emergence of social movements since the return to democracy in 1990. These have been characterized by limited participation by the conventional political actors who used to be the backbone of social demands in the country. In the current “Chilean model” of governance, political parties have lost their connection with their base. The existence of a difference between the needs emerging from civil society and those advanced by politicians has opened alternative opportunities for political action. Chile ha sido testigo de una emergencia inédita de movilizacion

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Lewis, John M. "Use of a Mixed-Layer Model to Investigate Problems in Operational Prediction of Return Flow." Monthly Weather Review 135, no. 7 (2007): 2610–28. http://dx.doi.org/10.1175/mwr3430.1.

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Abstract Inaccuracy in the numerical prediction of the moisture content of return-flow air over the Gulf of Mexico continues to plague operational forecasters. At the Environmental Modeling Center/National Centers for Environmental Prediction in the United States, the prediction errors have exhibited bias—typically too dry in the early 1990s and too moist from the mid-1990s to present. This research explores the possible sources of bias by using a Lagrangian formulation of the classic mixed-layer model. Justification for use of this low-order model rests on careful examination of the upper-air

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Guo, Fengqi, Sanhong Zhang, and Shuyi Duan. "Analysis of Measured Temperature Field of Unpaved Steel Box Girder." Applied Sciences 12, no. 17 (2022): 8417. http://dx.doi.org/10.3390/app12178417.

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This work used the measured data during the whole test period to study the law of temperature change in the steel rail beams, and the distribution characteristics of the sunshine temperature field, in straddle-type monorail tourist transportation systems, employing a field-test and a numerical simulation. The curve form of the temperature gradient was determined by a comparative analysis of the existing domestic and foreign norms. Finally, the generalized extreme value distribution model was used to predict the extreme value of the representative value of the temperature difference, and the va

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Navasaitienė, Stasė, Rasa Rukuižienė, Elena Kuchko, and Irina Levickaya. "Conceptual outlook to social business development." Management Theory and Studies for Rural Business and Infrastructure Development 37, no. 4 (2015): 552–61. http://dx.doi.org/10.15544/mts.2015.46.

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Social business concept has no clear methodological base, so a great attention is needful on social business development. The main scientific problem in the article is focused on clarification of methodological tools for identification social business development preconditions with the research purpose – the identification of specific typologic attributes of social business for improvement social business development. The monograph and descriptive analysis is applied for overview of scientific references, the content and meta-analysis – for presenting final conceptual explanation about attribu

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Rodríguez, Javier, and Wilfredo Toledo. "Chinese single-listed ADRs: returns and volatility." International Journal of Managerial Finance 11, no. 4 (2015): 480–502. http://dx.doi.org/10.1108/ijmf-07-2014-0103.

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Purpose – Single-listed American depositary receipts (ADRs) are traded in US markets, while their underlying share is not listed in the firm’s home market. The purpose of this paper is to empirically examine the factors affecting the returns and volatility of a sample of Chinese single-listed ADRs, in comparison with traditional Chinese ADRs. Design/methodology/approach – The methods used in this paper are similar to those used in the examination of traditional or dual-listed Chinese ADRs. However, motivated by the very nature of single-listed ADRs, the authors estimate a base model which incl

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Barth, James R., Mark Bertus, Jiang Hai, and Triphon Phumiwasana. "A Cross-Country Assessment of Bank Risk-Shifting Behavior." Review of Pacific Basin Financial Markets and Policies 11, no. 01 (2008): 1–34. http://dx.doi.org/10.1142/s0219091508001234.

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Banks are important for mobilizing savings and then channeling those funds to productive investment projects. While providing these and other services that contribute to economic growth and development, banks take on various types of risks with the expectation that the return they receive will compensate for the risks. This paper presents a simple model and tests the extent to which information asymmetry between bank owners and depositors induces risk-shifting behavior that allows for higher bank net interest margins. The empirical results support the hypothesis that the greater the degree of

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Grzegorz, Radzki, Bocewicz Grzegorz, Dybala Bogdan, and Banaszak Zbigniew. "Reactive Planning-Driven Approach to Online UAVs Mission Rerouting and Rescheduling." Applied Sciences 11, no. 19 (2021): 8898. http://dx.doi.org/10.3390/app11198898.

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The presented problem concerns the route planning of a UAV fleet carrying out deliveries to spatially dispersed customers in a highly dynamic and unpredictable environment within a specified timeframe. The developed model allows for predictive (i.e., taking into account forecasted changing weather conditions) and reactive (i.e., enabling contingency UAVs rerouting) delivery mission planning (i.e., NP-hard problem) in terms of the constraint satisfaction problem. Due to the need to implement an emergency return of the UAV to the base or handling ad hoc ordered deliveries, sufficient conditions

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