The paper analyzes the decision made by firms to issue one-time coupons as a means of attracting new deal-prone customers. Given the structure of the market and the share of loyal customers, we derive boundaries for the value of the coupon, as well as the optimal face value of the coupon. The main variables which determine the coupon value are: the size of deal-prone and loyal market segments, ...

High quality data on road crashes, design characteristics, and traffic are typically required to predict crash frequency. Surrogate Safety Measures (SSMs) an alternative category of indicators that can be used in safety analyses order quantify various unsafe events. The objective this research is exploit geometry SSMs toward investigations motorway segments. To end, for analysis, a database con...

frustrating situations that impede or prevent some form of ongoing goal-directed behavior are believed to act as a catalyst for aggressive behavior. from social learning approaches aggression is a learned response through observation or imitation of socially relevant others. many psychological factors are at play in aggressive driving and many may prove difficult to control. human beings are na...

High-risk societies are uncertain, ambiguous and unpredictable. Risk fluctuations prone to the intertwining overlapping of various accident hazards safety risks. China is interweaving risks, which leads an increase in number factors affecting public as well [1]. Therefore, this paper will quantify specific ranking indicators terms frequency hazards, degree vulnerability different hazards. The b...

We present the case of a patient who sustained a massive flail chest from a snowmobile accident. All ribs of the right side of the chest were fractured. Nonoperative management was unsuccessful. Previously reported methods of rib stabilization were precluded given the lack of stable chest wall elements to fixate or anchor the flail segments. We present a novel surgical treatment in which Nuss b...

Background: The incidences of head injuries are growing with increasing number of high speed motor vehicle, more movement of the public and mechanization in industry. Head injury is most common causes of mortality in road traffi c accidents and fall from Height. This is because of this special anatomical location of the Head in our body. This study is being taken into account to explore and eva...

Hip fractures rarely occur in children but when it occurs it is potentially very serious. Fracture in children is due to high velocity trauma, for example falling from a height or a car accident. Among the high risk complications we can get avascular necrosis, premature physeal closure and coxa vara when we use screws. Between the age of 4 and 9 the ligamentous teres contributes very little to ...

ALS is a terminal disease of motor neurons that is characterized by accumulation of proteinaceous deposits in affected cells. Pathological deposition of mutated Cu/Zn superoxide dismutase (SOD1) accounts for ∼20% of the familial ALS (fALS) cases. However, understanding the molecular link between mutation and disease has been difficult, given that more than 140 different SOD1 mutants have been o...

Restricted by the rolling terrains of mountainous areas in western parts of China, long steep downgrades are very common in mountainous freeways. Influenced by the factors like high altitude, big elevation differences, and the severe weather condition e.g. black ice, heavy snow and thick fog, most long steep downgrades turn to traffic accident prone sites. Moreover, once traffic accident happen...

Ischaemic Cerebrovascular Accident (CVA) has been shown to be associated with abnormal lipid profile (dyslipidaemia) as a risk factor. There is paucity of data regarding this in this environment hence this study. In this study, a total number of 63 subjects were recruited comprised of 33 patients with cerebrovascular accident (stroke) and 30 apparently healthy volunteers as control. A complete ...