Asset valuation: An historical perspective

Asset valuation has been discussed in the accounting and economic literature for most of the twentieth century. In the literature, discussions ranged from advocating only historical costing to the use of current value accounting exclusively. This paper traces the development of theoretical and pragmatic discussions on the topic of asset valuation

Hydrogeology and stratigraphy of the Dakota formation in Northwest Iowa

https://ir.uiowa.edu/igs_wsb/1012/thumbnail.jp

TARP as immunotherapeutic target in AML expressed in the LSC compartment

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Protective Coatings for the Graphite Facing in Calcium-Aluminothermal Processes

Results of pilot plant and full scale studies on the elaboration of high temperature protective coatings for graphite in the process of the reductive melting of niobium pentoxide and NbAl alloys production are presented. Graphite has found extensive application in high temperature processes due to its unique thermophysical properties. However, in these conditions it reacts very easily with air oxygen, liquid metals, oxides, and fluorides. As a result, porous graphite gets impregnated with liquid metal; besides, carbonization of melt and formation of a layer of metal carbides on graphite surface takes place. The layer of metal carbides has a low adhesion with graphite and a major part of them is transferred to the melt. The graphite facing of a furnace is quickly destructed. To avoid these harmful processes, special plasma sprayed protective coatings are used. In this work various coatings (Al2O3, Al2O3-CaO, ZrO2, NbC, Al2O3 + Nb, ZrO2 + Nb, NbC + Nb, Nb) were tested in pilot plant and industrial conditions. It was established that the best durability of the protective coating on graphite can be achieved in the case of its three-layer composition: Nb (0.07 mm) + NbC (0.4 mm) + Nb (0.3 mm). After industrial melting of 500-2000 kg ingots about 80% of this coating on the belt of the shaft furnace had preserved. Plasma sprayed protective coatings on the graphite facing extended its operation time, reduced the carbon content in the metal ingots to 0.02% (mass), and slag carbon content to 0.05-0.15% (mass).The financial support to V. G. from the Doctorate School of the Faculty of Chemical and Materials Technology of Tallinn University of Technology is gratefully acknowledged

Association of longitudinal changes in patient-reported health status with return to work in the first 2 years after traumatic injury:A prospective cohort study in the Netherlands

OBJECTIVES: To determine the prognostic value of time driven changes in health status on return to work (RTW) in the first 2 years after traumatic injury. DESIGN: A prospective longitudinal cohort study. All patient-reported outcomes were measured at 1 week, 1, 3, 6, 12 and 24 months after injury. SETTING: Ten participating hospitals in the Netherlands. PARTICIPANTS: Employed adult clinical injury patients admitted to the hospital between August 2015 and November 2016 (N=1245 patients). MAIN OUTCOME MEASURES: Data about (first) RTW were used from the patient-reported questionnaires (1=yes, 0=no). RTW was measured as the first time a patient started working after hospital admission. Time until RTW was calculated in weeks. Health status was measured with the EuroQol Five Dimensions-3 Levels (EQ5D) including a dimension to measure cognition. RESULTS: At 24 months, 88.5% (n=1102) of the patients had returned to work. The median time to RTW was 6.6 weeks (IQR: 2–13). Patients’ health status was found to be an independent prognostic factor for RTW: a 0.1-unit increase in EQ5D (scale 0–1) translated into RTW being four times more likely (95% CI 1.60 to 11.94). Patients who had moderate or severe problems (0=no problems, 1=moderate or severe problems) with mobility (HR 0.91, 95% CI 0.84 to 0.98), anxiety/depression (HR 0.86, 95% CI 0.80 to 0.91), usual activities (HR 0.91, 95% CI 0.83 to 0.98), self-care (HR 0.90, 95% CI 0.79 to 0.99) and cognition (HR 0.90, 95% CI 0.85 to 0.94) were significantly less likely to RTW compared with patients with no problems. CONCLUSION: Increased self-reported health status over time is associated with a higher likelihood of RTW, independent of baseline risk factors, such as injury severity or education. Knowledge on patient-reported outcomes can contribute to the development of tailored RTW treatments. Furthermore, patient-reported outcomes could be used as monitoring tool to guide postinjury care in the clinical setting and RTW process. TRIAL REGISTRATION NUMBER: NCT02508675; Results

Hip fractures in elderly people:Surgery or no surgery? A systematic review and meta-analysis

Iintroduction:  Increasing numbers of patients with hip fractures also have advanced comorbidities. A majority are treated surgically. However, a significantly increasing percentage of medically unfit patients with unacceptably high risk of perioperative death are treated nonoperatively. Important questions about patients' prefracture quality of life (QOL) and future perspectives should be asked before considering different treatment options to assess what kind of treatment is advisable in frail elderly high-risk patients with a hip fracture. Objective:  The aim of this review was to provide an overview of differences in mortality, health-related QOL [(HR)QOL], functional outcome, and costs between nonoperative management (NOM) and operative management (OM) of hip fractures in patients above 65 years. Methods:  A systematic literature search was performed in EMBASE, OvidSP, PubMed, Cochrane Central, and Web of Science for observational studies and trials. Observational studies and randomized controlled trials comparing NOM with OM in hip fracture patients were selected. The methodological quality of the selected studies was assessed according to the Methodological Index for Nonrandomized Studies (MINORS) or Furlan checklist. Results:  Seven observational studies were included with a total of 1189 patients, of whom 242 (20.3%) were treated conservatively. The methodological quality of the studies was moderate (mean: 14.7, standard deviation [SD]: 1.5). The 30-day and 1-year mortalities were higher in the nonoperative group (odds ratio [OR]: 3.95, 95% confidence interval [CI]: 1.43-10.96; OR: 3.84, 95% CI: 1.57-9.41). None of the included studies compared QOL, functional outcome, or health-care costs between the 2 groups. Conclusion:  This systematic review and meta-analysis demonstrated that only a few studies with small number of patients comparing NOM with OM were published. A significantly higher 30-day and 1-year mortality was revealed in nonoperatively treated hip fracture patients. No data were found examining (HR)QOL and costs. Further work is needed to enable shared decision-making and to initiate NOM in frail elderly patients with advanced comorbidity and limited life expectancy

Medical and productivity costs after trauma

BACKGROUND: Well-advised priority setting in prevention and treatment of injuries relies on detailed insight into costs of injury. This study aimed to provide a detailed overview of medical and productivity costs due to injury up to two years post-injury and compare these costs across subgroups for injury severity and age. METHODS: A prospective longitudinal cohort study followed all adult (≥18 years) injury patients admitted to a hospital in Noord-Brabant, the Netherlands. Patients filled out questionnaires 1 week, 1, 3, 6, 12 and 24 months after trauma, including items on health care consumption from the medical consumption questionnaire (iMCQ) and productivity loss from the productivity cost questionnaire (PCQ). Furthermore, injury severity was defined by Injury Severity Score (ISS). Data on diagnostics was retrieved from hospital registries. We calculated medical costs, consisting of in-hospital costs and post-hospital medical costs, and productivity costs due to injury up to two years post-injury. RESULTS: Approximately 50% (N = 4883) of registered patients provided informed consent, and 3785 filled out at least one questionnaire. In total, the average costs per patient were €12,190. In-hospital costs, post-hospital medical costs and productivity costs contributed €4810, €5110 and €5830, respectively. Total costs per patient increased with injury severity, from €7030 in ISS1-3 to €23,750 in ISS16+ and were lowest for age category 18-24y (€7980), highest for age category 85 years and over (€15,580), and fluctuated over age groups in between. CONCLUSION: Both medical costs and productivity costs generally increased with injury severity. Furthermore, productivity costs were found to be a large component of total costs of injury in ISS1-8 and are therefore a potentially interesting area with regard to reducing costs