Road traffic crash injuries and fatalities in the city of Kerman,Iran

The objective of this study was to investigate road traffic crash injuries and fatalities. Cases of 3902 road traffic injuries (1709 drivers, 891 passengers, 376 pedestrians and 926 motorcyclists) and 1564 road traffic fatalities (RTFs; 1222 males and 342 females) were collected from 2005 to 2008 using the database of the police forces and Department of Forensic Medicine in Kerman, respectively. Results showed that 66% of the injuries were related to car occupants (drivers and passengers) and men/women ratio was 5:1. The highest men/women ratio was (12.2:1) for drivers, while the lowest ratio (1.8:1) was for pedestrians. Most of the injuries had taken place at 16:01–20:00 h followed by 08:01–12:00 h. Highest numbers of injuries were found in male with the age groups of 18–24 years. The highest fatality rate of 79 per 100,000 population occurred in 2007–2008. Fatality ratio indicated higher male ratio, four times higher than females. The victims were 39% male between 30 and 55 years of age. Head injuries were present in 69% of the cases. In our series of forensic autopsy cases, head injuries were more frequent in motor vehicle occupants, pedestrians and motorcyclists. On average, two people died per day in RTFs in Kerman.     

Traders' strategic behavior in an index options market

We analyze traders' strategic behavior in an index options market, examining the relationships among expected duration, frequency of trades, trade size, and time to maturity using a modified ACD model. Using intraday data at‐the‐money put and call options, we obtain the following results: (1) Frequency of trades contains more information about future option price volatility than does trade size. This may result from institutional or large traders who have issued naked options using the delta‐neutral strategy to hedge those options. This also suggests that informed traders use their informational advantage little by little, rather than all at once. (2) Option volatility increases as the maturity date approaches, contradicting the prediction of the Black‐Scholes model. (3) The duration of the previous interval has a persistent effect on expected duration of the current interval. (4) For the estimation of the modified ACD model, the standardized distribution of duration is Weibull with γ < 1, not exponential. (5) The duration in the options market exhibits an inverse U‐shaped diurnal pattern, much like that of the U.S. stock market. However, unlike in the U.S. stock market, the index options duration becomes much shorter right before lunch hour (12:00 pm). © 2005 Wiley Periodicals, Inc. Jrl Fut Mark 25:105–133, 2005     

Analysis of rescue and drowning history from a lifeguarded waterpark environment

The objective of this paper is to analyse rescue history from a lifeguarded waterpark environment using four characteristics: gender, age, water depth and type of aquatic attraction together with the actions taken by the guard to minimise the time needed to restore respiration in the case of loss of spontaneous respiration (LSR). Analysis of 63,800,000 guests with 56,000 rescues and 32 LSR rescues shows that children and shallow water both had relatively high levels of rescues [62.6% for children aged 1–12 years and 42% for water depth less than 1.52 m (5 ft)] and LSR rescues [53.2% for children aged 1–12 years and 65.6% for water depth less than 1.52 m (5 ft.)] with 87.5% of the LSR rescues resuming spontaneous respiration and 75% having a poolside neurological rating of Alert. Recommendations aremade to train lifeguards in effective scanning and early victim recognition and rescue together with the use of in-water intervention in rescue protocols.     

Changing laundry habits in Norway

Maintenance is often the most energy‐demanding stage during clothes' life cycle. Therefore, a shift towards more sustainable washing habits has great potential to reduce the consumption of energy, water and detergent. This paper discusses the change in laundering practices during the past 10 years in Norway and suggests strategies to help consumers change their laundry habits to more sustainable ones. Quantitative information of consumers' experiences, habits and opinions concerning clothing maintenance was collected through three surveys in Norway in 2002, 2010 and 2011. The 2010 study was supplemented with qualitative in‐depth interviews of a strategic sample of households. The average washing temperature has decreased slightly during the studied time periods. Some products' washing frequencies remained the same, whereas other products such as jeans were used a few more days before washing. The cotton programme is the most used washing programme, but short programmes are gaining popularity. The laundry sorting processes vary greatly and are influenced by several factors such as washing temperature, colours, fibre type and use area. For some consumers, the use of several different sorting categories made it more difficult to collect a sufficient amount of clothing to fill the machine. They were also afraid that overfilling the machine would result in clothes that were not clean enough or had detergent residues. Detergent dosing practices are far from optimal. In 2010, although the majority of respondents only used eye measure and did not know the water hardness of their area, they still tried to vary detergent dosage based on the amount of laundry and the level of soiling. Different design for sustainable behaviour strategies could be used within detergent dosage systems, care labelling, machine programme selection (such as suggesting lower temperature and eco‐programme), machine filling grade indicators, storage systems for slightly used clothing and textile material choice.     

A network text analysis of published papers in service business, 2007–2017: research trends in the service sector

The service sector has become the most important part of the global economy. Thus, Service Business: An International Journal (SB) was launched in 2007 to deliver innovative studies that can provide resonating insights to researchers and practitioners in services. This study analyzed 311 articles published in SB during the past 10+ years (2007–2017) by conducting network text analysis (NTA). The published papers’ keywords link relations were analyzed to create network maps of research topics, ranging from traditional to emerging ideas of researchers. Influential research topics and their clusters were identified using centrality and community analyses. Research trends were identified for the first 5 years (Volume 1–5) and later years (Volume 6–11) separately through NTA. The results reveal interesting change in research topics over time. Common keywords of studies published in the first 5 years were: Service, Innovation, Customer, Strategy, Tourism, and Quality. The primary frequent keywords of articles published during 2012–2017 were: Customer, Quality, Satisfaction, Innovation, Mobile, and Technology. The results of the study shed valuable insights to the researchers and practitioners in the service sector. Applications of keyword network building and analysis methods provided in this study would be helpful to researchers who are interested in exploring trends of emerging new topics.     

Trends in disposable income among teenage boys and girls in Finland from 1977 to 2003

This article explores changes in the money Finnish young people aged 12–18 years have at their disposal, over a 26‐year period 1977–2003. Previous studies suggest that the amount of money young people have is not necessarily dependent on traditional socio‐economic variables, but there are no systematic studies on the development of the disposable income of the teenagers. The analyses of this study are based on a series of 14 biannual nationally representative surveys of 12‐, 14‐, 16‐ and 18‐year‐olds in Finland from 1977 to 2003, with a total of 84 404 respondents. Time‐trends are shown and analysed by gender, family structure, place of residence and socio‐economic status of family using analysis of variance and linear regression modelling. The results show that teenagers’ disposable money has increased little between 1977 and 2003 in comparison with the general income development. Economic booms and depressions can be seen in rising and falling amounts of disposal money, particularly among 16‐ to 18‐year‐old respondents. There were also significant differences between the genders. Young boys clearly had more money at their disposal than young girls. Children of single parents had more money than their peers from nuclear families. Urban youth had more money than those living in the countryside and the difference increased during the period under examination. The socio‐economic position of the family had little impact.     

A local bicycle helmet ‘law’ in a Swedish municipality – the effects on helmet use

The municipality of Motala in Sweden introduced a local bicycle helmet ‘law’ on May 1, 1996. This is not a legally enacted ordinance, but instead a legislated recommendation backed up by information and education. Formally, the law applies to children (aged 6–12 years), although the intention is to increase helmet use by all cyclists. The objective of the present study was to quantitatively evaluate the impact of the Motala helmet law on observed use of helmets by children and adults. Bicycle helmet use was monitored in Motala (n = 2,458/year) and in control towns (n = 17,818/year) both before and after adoption of the helmet law (1995–1998). Chi-square tests showed that helmet wearing 1995–1998 increased in Motala among all bicyclists (from 6.1% to 10.5%) and adults biking on cycle paths (from 1.8% to 7.6%). Helmet use by school children aged 6–12 increased during the first 6 months after introduction of the law (from 65.0% to 75.7%) but then progressively decreased to the pre-law level. Considering children cycling on cycle paths and for recreation in housing areas, there was a tendency towards increased helmet use during the first post-law year, but this was followed by a reduction to a lower level in 1998 than in 1995. Logistic regression analysis taking into account data from the control towns indicated that the helmet law had a positive effect on children cycling to schools during the first 6 months, and a weak delayed but more long-term positive effect on adult cyclists on cycle paths. There were no positive effects on children in housing areas and on cycle paths. The Motala helmet law probably would have had greater and more lasting effects on helmet use by bicyclists, if certain problems had been avoided during the initiation phase. Moreover, although it did have a positive influence on both school children and adults, it is not legally binding, and hence no penalties can be imposed. Presumably, compulsory legislation would have a more substantial impact on helmet wearing than a non-mandatory helmet ‘law’ such as that introduced in Motala.     

The Learning Transfer System Inventory (LTSI) translated into French: internal structure and predictive validity

The Learning Transfer System Inventory (LTSI, Holton et al., 2000 ) considers 16 factors likely to influence the transfer of training to the workplace. The purpose of this study is to translate the Learning Transfer System Inventory into French and to examine (1) the internal structure of the translated instrument; and (2) its predictive validity. The Learning Transfer System Inventory was administered to 328 participants from six companies during the week following the end of a training program. The transfer questionnaire was filled in by 106 of those participants 1–3 months later. The results showed that a principal component analysis reveals a factor structure very similar to the original structure: the 16 original factors are replicated. Second, seven factors display statistically significant correlations with transfer: learner readiness, motivation to transfer, transfer design, opportunity to use, transfer‐performance expectations, performance‐outcomes expectations and performance self‐efficacy. Comparisons with four similar previous studies allow us to draw directions for future research on the instrument.     

Hygienic quality of cleaning cloths used in professional cleaning of private domestic homes

The objective of this laboratory study was to obtain general background information concerning professional cleaning in private domestic homes. The specific aim was to examine the effect of storage and washing of dirty cloths on their hygienic status. The effect of storage on the number of Staphylococcus aureus bacteria in cleaning cloths was examined using current or potential materials for professional cleaning in private homes. The bacterial content increased in microfibre cloths in some cases during a normal working day (8 h storage), and more clearly after 16 h or 48 h of storage. Disposable fibre cloths did not promote the growth of microbes as well as microfibre cloths. The effect of detergents on the hygienic status of cleaning cloths was unclear: some cleaning agents appeared to enhance the growth of bacteria, while others did not. In many cases, organic substances, i.e. protein added to the cloths, enhanced the growth of microbes. Washing of microfibre cloths at 60°C reduced the numbers of bacteria on the cloths but did not remove them entirely. Storage of dirty cloths before washing will probably cause difficulties in the proper washing of the cloths, and thus negatively affect their capacity for hygienic results in cleaning surfaces, as well as presenting a risk to the safety of the worker. Cleaning cloths should be washed as soon as possible after use: washing after each working day, at the latest, is recommended. Furthermore, cleaning cloths should be selected for professional use to allow washing at hot temperatures. The findings of this study could be used for training in professional home cleaning. They also provide valuable information for other branches of cleaning, including consumer use in households.     

A survey of commercial laundry detergents - how effective are they?: Part III: powders,liquids and hard water

The effectiveness of 42 detergents, 11 non-phosphate containing powdered detergents, 12 phosphate containing powdered detergents, 11 unbuilt liquid detergents and eight built liquid detergents, of varying formulations, in cleaning a standard soiled fabric in water of varying hardness was evaluated. Powdered detergents were found to be significantly affected only at very high water hardness levels. There was no significant difference between washing in warm and hot water for the liquid detergents, except for a melaleucaoil based detergent which performed significantly better in hot water. Increasing water hardness had no significant effect on liquid detergents. Powdered detergents performed better than liquid detergents in cleaning the standard soiled fabric. While no one detergent was significantly better than the others, in general, washing with detergents that contained phosphates did give somewhat better results in warm water. Detergents that contained bleach as an additive did not result in whiter fabric.     

Benzodiazepines and falling injuries in the elderly

Abstract

Objective: To investigate the use of benzodiazepines (BD) in relation to the risk of falling injuries in an elderly population (65 yrs. or older)

Design: An unmatched case-control study. Setting: The town of Pori, Finland

Participants: 380 subjects aged 65 years or over, who presented for medical treatment due to a fall during the 12 months from Sept. 1987 to Aug. 1988, and 342 controls, 65 years or older, selected from the population register. The control subjects were examined according to a schedule that corresponded in time (time of day, day of the week and month) to the time-distribution of falls in an earlier study

Outcome measure: All falls leading to medical treatment. BD use was determined from the serum, and the type of BD was determined by interviews and controlled from patient records

Results: We found a tendency toward a dose-response relationship between the serum BD concentration and the occurrence of falling injury. The risk of faling injury related to short-acting BDs was increased 5-fold and that for other BDs 2-fold compared to the risk among those without any BD in the serum. Conclusion: The results indicate that BD use is associated with falls in the elderly, and that short-acting BDs seem to be associated with falls more often. The results suggest caution in the use of BDs in the elderly.     

An Integrated Framework of Newspaper Advertising: A Longitudinal Analysis

The article develops an integrated framework for analysing newspaper advertising, based on extant theoretical and practical knowledge on the subject. The framework is subsequently used to examine changes in 100 elements of newspaper advertisements over time. For this purpose, 2,250 illustrated advertisements were systematically extracted from national newspapers published in Cyprus during the period 1900-1974. Each advertisement was content-analysed by independent coders, based on a coding frame focusing on three major parts: copy (headlines, subheads, and body copy), art (illustrations, identification marks, and typography), and layout. The analysis revealed that: (a) certain advertising elements are systematically used more frequently than others, irrespective of time; (b) there are significant variations in the use of most of the advertising elements examined among different time periods; and (c) while the use of some of these elements increases systematically over time, others show a steady decrease.     

VIX futures

VIX futures are exchange‐traded contracts on a future volatility index (VIX) level derived from a basket of S&P 500 (SPX) stock index options. The authors posit a stochastic variance model of VIX time evolution, and develop an expression for VIX futures. Free parameters are estimated from market data over the past few years. It is found that the model with parameters estimated from the whole period from 1990 to 2005 overprices the futures contracts by 16–44%. But the discrepancy is dramatically reduced to 2–12% if the parameters are estimated from the most recent one‐year period. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:521–531, 2006     

An Analysis of Factors Influencing the Anti‐dumping Behaviour in India

The use of anti‐dumping measures as a trade protection tool, has increased phenomenally during the last decade. One significant aspect of this new trend is the increasing involvement of developing countries. India is one such country which has emerged as a very frequent user of anti‐dumping measures, surpassing even the traditional users. It had initiated more than 300 anti‐dumping cases by the end of 2002–03. Many of these cases are against developing countries. Most of the cases are concentrated in narrow range product groups, like chemicals and petrochemicals, iron and steel, pharmaceuticals and textiles. This study examines India's experience with anti‐dumping measures. The main objective of the study is to identify the factors which might have influenced the anti‐dumping behaviour in India. Discussion of these factors shows that imports have increased considerably. This is particularly true for a number of developing countries facing dumping charges in India. At the same time, many of the domestic producers of the like products have performed poorly during the last decade. Such trends may instigate the import‐competing industries to seek anti‐dumping protection and may also influence the authority to provide that. However, the results of our statistical exercise show that, although imports and performance of the domestic industry might have influenced the initiation of anti‐dumping cases, these factors did not seem to significantly influence the final decision of the authority. The results rather indicated a tendency on the part of the authority to provide anti‐dumping protection to industries, which are characterised by a large number of firms.     

Derivatives do affect mutual fund returns: Evidence from the financial crisis of 1998

Using a unique data set of detailed balance sheet information on mutual funds, we find that most mutual funds using derivatives do so to a very limited extent that has little discernable impact on returns. However, there exist two types of funds that make more extensive use of derivatives, global funds and specialized domestic equity funds. The risk and return characteristics of these two groups of funds are significantly different from funds employing derivatives sparingly or not at all. Fund managers time their use of derivatives in response to past returns. Evidence during the financial crisis of August 1998 supports the hypothesis that the effects of derivative use are most pronounced during the periods of extreme movement. © 2010 Wiley Periodicals, Inc. Jrl Fut Mark 31:629–658, 2011     

The importance of time frames in Swedish Home and Consumer Studies

The aim of this study was to explore how time frames affect pupils and teachers in cooking activities during lessons of different durations for Home and Consumer Studies, with a specific focus on the pupils’ experiences. To investigate this, classroom observations were carried out in 2011 and 2012, with the help of audio and video recordings in three different schools in Sweden and included altogether 22 pupils (18 girls, 4 boys) in grade 9 (15–16 years). Each class was observed during two separate lessons, lasting between 1 h 50 min (110 minutes) and 2 h 20 min (140 min). The six lessons resulted in 12 h of video recorded time and 80 h of sound recordings. The study showed that the importance of finishing on time seemed to be ingrained in most pupils in all classes and the end result was perceived as more important than the process of cooking. The study also showed that knowledge of cooking skills and time management seemed important for success in grade‐related tasks. Pupils demonstrated different ways of handling the time frames, e.g. using various methods to speed up the cooking process. This study raises important questions about the relationship between national and local time frames and the curriculum aims in Home and Consumer Studies.     

Product Category Pricing and Future Price Attractiveness: 99-Ending Pricing in a Memory-Based Context

Two experiments were used to examine the impact of 99-ending pricing on memory-based comparisons with a multiple product set. Results indicate that when a target is priced above/below a stimulus set, use of 99-ending prices for the highest and lowest prices in the stimulus set lessens target price attractiveness compared to when the highest and lowest prices are 00-ending. Attractiveness of targets priced within the stimulus set was not impacted by the use of 99- versus 00-ending pricing. Overall, participants appear to use an assimilation/contrast approach based upon left-digit processing in determining target price attractiveness.     

Ownership, Scale Economies and Efficiency in the Italian Water Sector

The Italian water sector is characterized by the presence of several water companies, with different ownership types; Fabbri and Fraquelli (Empirica 27:65–82, 2000) and Antonioli and Filippini (Util Policy 10:181–187, 2001) have analyzed the presence of economies of scale and scope in the sector while Abrate et al. (Journal of Productivity Analysis 35:227–242, 2011) have assessed the role of the heterogeneity in this sector. In recent years, the Italian water sector has been subject to a large reorganization, following the implementation of the EC Directive 60/00 for the harmonization of the pricing rules and polluting principles of the Member States. However, the reorganization of the sector is far from being accomplished, and the Italian water companies still face strong regulatory uncertainty associated with the absence of an independent authority. The lack of clear regulatory principles and the presence of almost 100 different companies managed differently across the territory requires the re-analysis of the possible sources of inefficiencies, in order to understand what kind of policy measures might be implemented to improve the performance of the water utilities and take them into account when the final tariff is fixed. This paper estimates a stochastic frontier to empirically investigate the main sources of inefficiency for a sample of 65 Italian water companies. First, this paper investigates whether a positive relationship exists between the firm’s ownership type and efficiency by using different estimation methods; second, this paper investigates whether the presence of economies of scale in the Italian water sector still exist after the merging process that recently took place as part of the sector reorganization. The estimation results show that ownership is not related to the firm’s performance and that the Italian water sector is still characterized by the presence of economies of scale. This result indicates that local communities may benefit from merging into larger water districts.     

Is volatility risk priced in the securities market? Evidence from S&P 500 index options

The authors examine whether volatility risk is a priced risk factor in securities returns. Zero‐beta at‐the‐money straddle returns of the S&P 500 index are used to measure volatility risk. It is demonstrated that volatility risk captures time variation in the stochastic discount factor. The results suggest that straddle returns are important conditioning variables in asset pricing, and investors use straddle returns when forming their expectations about securities returns. One interesting finding is that different classes of firms react differently to volatility risk. For example, small firms and value firms have negative and significant volatility coefficients, whereas big firms and growth firms have positive and significant volatility coefficients during high‐volatility periods, indicating that investors see these latter firms as hedges against volatile states of the economy. Overall, these findings have important implications for portfolio formation, risk management, and hedging strategies. © 2007 Wiley Periodicals, Inc. Jrl Fut Mark 27:617–642, 2007