Hospitality Doctoral Students\u27 Job Selection Criteria for Choosing a Career in Academia

When graduation approaches for doctoral students, they must begin the tedious process of searching for their first faculty position. It becomes important for the student to have a good understanding of what factors are most important when he or she is looking for that position. Very limited hospitality research addresses this viewpoint. The purpose of this study is to identify the factors of importance for hospitality management doctoral students when they select an academic position to apply for or accept. An online survey of students found that likelihood of obtaining tenure, criteria used for obtaining tenure, base salary, and teaching load were the four most important factors. Differences were found in gender, and nationality. Implications and future research are discussed

The Role of Implicit Measurement in the Assessment of Risky Behavior: A Pilot Study with African American Girls

With the aim of developing a novel strategy for identifying vulnerability for early sexual activity and adjustment problems, African American girls (n = 39) completed partially structured scenarios in which female characters of similar age faced circumstances characterized by varying levels of risk. Most girls indicated that they believed the characters would have sex, regardless of their own sexual history or the level of risk in the scenario. However, the combination of girls’ sexual history and girls’ predictions of characters’ behavior in the scenario provided more information regarding the girls at greatest risk for adjustment problems. Implicit techniques offer an additional strategy for identifying girls most vulnerable to adjustment difficulties in the context of early sexual activity

Outcomes in patients with gunshot wounds to the brain.

Introduction:Gunshot wounds to the brain (GSWB) confer high lethality and uncertain recovery. It is unclear which patients benefit from aggressive resuscitation, and furthermore whether patients with GSWB undergoing cardiopulmonary resuscitation (CPR) have potential for survival or organ donation. Therefore, we sought to determine the rates of survival and organ donation, as well as identify factors associated with both outcomes in patients with GSWB undergoing CPR. Methods:We performed a retrospective, multicenter study at 25 US trauma centers including dates between June 1, 2011 and December 31, 2017. Patients were included if they suffered isolated GSWB and required CPR at a referring hospital, in the field, or in the trauma resuscitation room. Patients were excluded for significant torso or extremity injuries, or if pregnant. Binomial regression models were used to determine predictors of survival/organ donation. Results:825 patients met study criteria; the majority were male (87.6%) with a mean age of 36.5 years. Most (67%) underwent CPR in the field and 2.1% (n=17) survived to discharge. Of the non-survivors, 17.5% (n=141) were considered eligible donors, with a donation rate of 58.9% (n=83) in this group. Regression models found several predictors of survival. Hormone replacement was predictive of both survival and organ donation. Conclusion:We found that GSWB requiring CPR during trauma resuscitation was associated with a 2.1% survival rate and overall organ donation rate of 10.3%. Several factors appear to be favorably associated with survival, although predictions are uncertain due to the low number of survivors in this patient population. Hormone replacement was predictive of both survival and organ donation. These results are a starting point for determining appropriate treatment algorithms for this devastating clinical condition. Level of evidence:Level II

An Articulating Tool for Endoscopic Screw Delivery

This paper describes the development of an articulating endoscopic screw driver that can be used to place screws in osteosynthetic plates during thoracoscopic surgery. The device is small enough to be used with a 12 mm trocar sleeve and transmits sufficient torque to fully secure bone screws. The articulating joint enables correct screw alignment at obtuse angles, up to 60 deg from the tool axis. A novel articulating joint is presented, wherein a flexible shaft both transmits torque and actuates the joint; antagonist force is provided by a superelastic spring. Screws are secured against the driver blade during insertion with a retention mechanism that passively releases the screw once it is securely seated in the bone. The prototype has been fitted with a blade compatible with 2.0 and 2.3 mm self-drilling screws, though a different driver blade or drill bit can be easily attached. Efficacy of the tool has been demonstrated by thoracoscopically securing an osteosynthetic plate to a rib during an animal trial. This tool enables minimally invasive, thoracoscopic rib fixation.Center for Integration of Medicine and Innovative Technology (DOD funds, FAR 52.227-11

Cervical Fractures: Does Injury Level Impact the Incidence of Dysphagia in Elderly Patients?

Dysphagia is common in the elderly with significant consequences such as aspiration and malnutrition. This study seeks to investigate oropharyngeal dysphagia in elderly patients with cervical fractures and determine whether the level of cervical fracture impacts the incidence of swallowing dysfunction. Records of trauma patients ≥65 admitted with cervical fractures over a 76-month period to a level 1 trauma center were reviewed. History of dysphagia, stroke, tracheostomy or spinal cord injury were excluded criteria, leaving 161 patients for analysis. Evaluation of swallowing function was performed to identify dysphagia and variables were analyzed. A total of 161 patients met inclusion criteria and 42 (26.1%) had dysphagia. Patients with dysphagia were older (84.1 ± 8.93 vs. 79.9 ± 8.48, p = 0.006), had higher hospital length of stay (9.0 ± 4.48 vs 4.6 ± 3.30, p = <0.0001), and were more likely to have intensive care unit days (52.4% vs 21.8%, p = 0.0002). Non-operatively-managed patients with C1 fractures were more likely to have dysphagia than patients without C1 fractures (29.2% vs 7.1%, p = 0.0008). After regression analysis, C1 fracture increased the likelihood of dysphagia by four times (OR = 4.0; 95% CI 1.2–13.0). Oropharyngeal dysphagia is common in elderly patients with cervical fracture. Non-operatively-managed patients with C1 fractures are at increased risk and may benefit from more vigorous surveillance

Bell-Curve Genetic Algorithm for Mixed Continuous and Discrete Optimization Problems

This paper is the next installment in a series (Sobieszczanski-Sobieski et al. 1998, Kincaid et al. 2000, 2001, 2002 and Plassman and Sobieszczanski-Sobieski 2000) that has introduced a variant of the Genetic Algorithm in which the reproduction mechanism was modified to base it on the Gaussian probability distribution, the bell curve. The bell-curve based (BCB) heuristic procedure, first presented in Sobieszczanski-Sobieski, Laba, and Kincaid (1998), is similar in spirit to Evolutionary Search strategies (ESs) and Evolutionary Programming methods (EPs) but has fewer parameters to adjust. In Sobieszczanski-Sobieski et al. (1998) BCB was tested on a structural design optimization problem. The quality of solutions generated were verified by comparing BCB solutions to ones generated by a standard nonlinear programming technique. No attempt was made to analyze the sensitiv- The first author is the corresponding author. The first, second and third authors gratefully acknowledge the support of NASA-Langley Research Center--NAG-1-2077 ity of the BCB parameters. Kincaid, Weber and Sobieszczanski-Sobieski (2000) provide a preliminary investigation into BCB parameter selection as well as document improvements in the performance of BCB. Computational results for continuous, discrete and mixed continuous and discrete design optimization problems with constraints is reported. Further experiments with BCB for purely discrete optimization problems is provided in Kincaid, Weber and Sobieszczanski-Sobieski (2001). Plassman and Sobieszczanski-Sobieski (2000) implement and test a parallel version of BCB for continuous optimization problem

Bell-Curve Genetic Algorithm for Mixed Continuous and Discrete Optimization Problems

In this manuscript we have examined an extension of BCB that encompasses a mix of continuous and quasi-discrete, as well as truly-discrete applications. FVe began by testing two refinements to the discrete version of BCB. The testing of midpoint versus fitness (Tables 1 and 2) proved inconclusive. The testing of discrete normal tails versus standard mutation showed was conclusive and demonstrated that the discrete normal tails are better. Next, we implemented these refinements in a combined continuous and discrete BCB and compared the performance of two discrete distance on the hub problem. Here we found when "order does matter" it pays to take it into account

Prion Interference Is Due to a Reduction in Strain-Specific PrP\u3csup\u3eSc\u3c/sup\u3e Levels

When two prion strains infect a single host, one strain can interfere with the ability of the other to cause disease but it is not known whether prion replication of the second strain is also diminished. To further investigate strain interference, we infected hamsters in the sciatic nerve with the long-incubation-period transmissible mink encephalopathy (TME) agent DY TME prior to superinfection of hamsters with the short-incubation-period HY TME agent. Increases in the interval between TME agent inoculations resulted in an extension of the incubation period of HY TME or a complete block of the ability of the HY TME agent to cause disease. The sciatic nerve route of inoculation gave the two TME strains access to the same population of neurons, allowing for the potential of prion interference in the lumbar spinal cord. The ability of the DY TME agent to extend the incubation period of HY TME corresponds with detection of DY TME PrPSc, the abnormal isoform of the prion protein, in the lumbar spinal cord. The increased incubation period of HY TME or the inability of the HY TME agent to cause disease in the coinfected animals corresponds with a reduction in the abundance of HY TME PrPSc in the lumbar spinal cord. When the two strains were not directed to the same populations of neurons within the lumbar spinal cord, interference between HY TME and DY TME did not occur. This suggests that DY TME agent replication interferes with HY TME agent replication when the two strains infect a common population of neurons