OBJECTIVES Despite significant progress, surgical outcome for high-risk patients with hypoplastic left heart syndrome (HLHS) remain suboptimal. The hybrid palliation lessens the initial operative insult and is expected to improve overall survival; however the outcome of this management sequence is unknown. METHODS Retrospective review of all high-risk neonates (prematurity, low birth weight, ...

supplier selection is a multi-criteria problem. this study proposes a hybrid model for supporting the suppliers’ selection and ranking. this research is a two-stage model designed to fully rank the suppliers where each supplier has multiple inputs and outputs. first, the supplier evaluation problem is formulated by data envelopment analysis (dea), since the regarded decision deals with uncertai...

This article quantifies the impact of Wal-Mart Supercenters on supermarkets’ profitability via a two-stage dynamic entry game, using method of simulated moments and milk scanner data from Dallas/Fort Worth supermarkets. The empirical findings show that the entry of Wal-Mart Supercenters accounts for about an average 50% decrease in milk profit margins for incumbent supermarkets. Effects of scal...

Digital platforms have disrupted many sectors but not yet visibly transformed highly regulated industries. This study of Big Tech entry in healthcare and education explores how begun to enter industries systematically effectively. It presents a four-stage process model platform entry, which we term as “digital colonization.” involves provision data infrastructure services incumbents; capture th...

proper application of n fertilizer and its optimization for increasing the economic yield of rice is definitely important. in order to determine the best n application method and amount according to growth stages of hybrid rice, an experiment was carried out at experimental farm of rrii in a factorial experiment based on a randomized complete block design with 3 replications. the treatments inc...

This paper considers nonparametric identification of a two-stage entry and bidding model for auctions which we call the Affiliated-Signal (AS) model. This model assumes that potential bidders have private values, observe imperfect signals of their true values prior to entry, and choose whether to undertake a costly entry process. The AS model is a theoretically appealing candidate for the struc...

As the number of endoscopic procedures has increased tremendously over the years, several different complications may arise affecting different systems. More than approximately half of these complications occur during entry; while the rest occurs during or after the operation. The majority of studies related to this subject revealed that the rate of complications decrease by increasing surgical...

in this paper, a hybrid method for limited resource allocation and leveling in complex multi-stage, multi-product and multi-period production planning problems with aim of lot-size determination and total cost minimization has been proposed. this problem consists of multiple products with sequential production processes that are produced in different periods to meet the customers demand. by det...

in order to identify low maintenance turfgrass, turf quality of selected entries of germination stage under drought stress were evaluated by digital image analysis methods in the field conditions. the first greenhouse study examined the interaction of four different levels of soil water contents (40, 60, 80 % and 100% field capacity) on 14 festuca arundinacea entries. we determined the effects ...