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.     

New challenges in professional cleaning: hygiene quality and monitoring of surfaces in private domestic homes

In many countries, changes in the pattern of working lives and ageing of the population increases the need for professional cleaning in private domestic homes. The objective of this study was to obtain basic knowledge concerning professional home cleaning. The study consisted of two parts. First, cleanability of surfaces contaminated with microbiological and organic soils was examined in the laboratory using cleaning cloths, detergents and rapid detection methods with potential for use in conjunction with professional cleaning in private homes. Second, hygienic conditions in three households were screened using the same rapid detection methods as in the laboratory experiments. According to the laboratory study, the cleaning efficiency of the non‐woven cloth was clearly poorer than that of the cleaning cloths containing microfibers. There were differences between the efficacy of the cleaning agents in removal of protein and microbiological soils. Despite the differences between surface topography observed with scanning electron microscopy, differences between the cleanability of the three examined surface materials (steel and two plastic surfaces) were small. In hygiene monitoring, the highest levels of total aerobic bacterial counts were detected in the plughole of the sink, on the eating table in kitchens and along the edge of the toilet washbowl and the cover of toilet seats. Low amounts of Enterobacteriaceae indicating faecal contamination were detected in the toilet and bathroom after cleaning. Moulds were not detected in any of the three households, and the amounts of yeasts were low. Detection methods, microbiological dipslides and the protein test, were well suited to the laboratory study. Furthermore, they complemented each other in the hygiene monitoring. The information obtained will be used for development of better practices in professional home cleaning. Good quality management in professional home cleaning and the cleanliness of surfaces in homes are important factors affecting comfort and safety.     

微乳液型油墨清洗技术的研究

研究了一种微乳液型油墨清洗剂,分析了清洗剂本身的理化特性,优化了清洗剂的清洗工艺。得出结论,微乳液型清洗剂最佳的清洗时间为5min,最佳的清洗温度为30℃。清洗后,被清洗物表面基本无油墨的残留,清洗效果较好。     

An investigation into the effects of domestic cleaning on upholstery covering materials backcoated with fire retardants

Abstract: The purpose of this research was to investigate the effects of domestic cleaning on upholstery covering materials backcoated with fire retardants. The results are an indicator of the effectiveness of legislative controls for upholstery. A questionnaire and pilot study were used to devise standard treatment procedures reflecting popular domestic cleaning methods. Samples of material were subjected to each treatment procedure followed by testing to the match test in BS 5852:Pt 1: 1979, over filling material specified in Part 1 of Schedule 5 of the Furniture and Furnishings (Fire) (Safety) Regulations 1988. To provide a standard, materials were also subjected to the water soak procedure in BS 5651: 1978, followed by testing to the match test. The results indicate that domestic cleaning methods affect backcoated fire retardants in such a way that current furniture legislation does not adequately provide for the level of durability required in practice. In addition, evidence was gained via a retail survey which suggests that consumers are not provided with sufficient aftercare information when purchasing new furniture.     

Outsourcing child care,home cleaning and meal preparation

In this paper, the outsourcing of child care, home cleaning and meal preparation is analysed by means of a socio‐economic model that incorporates household‐economic, life cycle, lifestyle and health variables. The data (n = 700) were collected during a telephone survey in the Netherlands. About 10% of the households did not use any of the three outsourcing types. About 70 to 90% of households outsourced meal preparation at least once per month. In each household life cycle stage, the average monthly expenditures on outsourcing meal preparation were the highest of the three outsourcing categories. Factors affecting expenditures were generally the same for each type of outsourcing studied. In general, household economic variables including wage and working hours were unimportant in explaining the incidence and expenditures of outsourcing. The same holds for self‐reported health. All expenditure types were affected by life cycle variables. There was an indication that a traditional lifestyle and traditional family type affected outsourcing expenditures negatively. Education appeared as an important factor: regardless of gender, both medium‐ and higher‐educated people were more inclined to spend money on outsourcing than the lower educated. Especially, people younger than 44 years outsourced meal preparation. Outsourcing was neither restricted to nor especially practised by couples.     

自动焊接印制版的设计及焊后清洗工艺

本文对波峰自动焊接中印制板的焊盘、焊盘孔、印制导线及其形状、尺寸以及分布等设计指标和参数作了较详细的分析.同时对印制电路板焊后清洗工艺中清洗剂的选择和清洗步骤作了简介.     

The effects of body image and self‐esteem on frequency of closet cleaning

The purpose of this study was to examine divestment of clothing and its relationship to psychological characteristics (body image and self‐esteem) and demographic characteristics (gender and age) of the consumer. The relationship between frequencies in closet cleaning to categories selected for body image (Appearance Orientation, Appearance Evaluation, Body Areas Satisfaction, Subjective Weight, and Weight Preoccupation) were calculated using Pearson's Correlation and Analysis of Variance. Frequencies in closet cleaning were also compared to the overall score from responses to the Rosenberg Self‐Esteem Scale. The relationship between disposal frequency and Appearance Orientation was statistically significant for both gender groups, particularly among groups 18–25 years. Individuals with a higher Appearance Orientation tended to dispose clothing more frequently than others. When comparing men to women, body image accounted for garment disposal more among men, suggesting women have more varied reasons to dispose of clothing. Self‐esteem measures were not related to disposal frequency among all groups. The findings contribute to knowledge and have implications related to self‐concept and consumption behavior post purchasing. For example, results were similar between young men and women suggesting men may have similar clothing and appearance oriented behavior to women. In another example, those with high appearance orientation could be targeted for campaigns related to sustainable disposal strategies.     

QFD方法在清理筛设计中的应用

本文对QFD设计理论进行了介绍分析,并在此基础上建立了清理筛一级质量屋模型,并对清理筛进行了综合竞争能力分析。     

Does Contact Between Employees and Service Recipients Lead to Socially More Responsible Behaviours? The Case of Cleaning

Cleaning occupations, which in recent years have accounted for a not inconsiderable share of employment and job creation in France, are characterised by particularly bad working conditions and low pay. Is this situation inevitable? Are there not in fact mechanisms that might lead employers in the cleaning sector to adopt socially more responsible behaviours towards their employees? After all, the literature on corporate social responsibility suggests that the actions of consumers could be one of these mechanisms. The aim of our paper is to test the impact on job quality of contact between cleaning workers and service recipients. To this end, we analyse data from a survey carried out by the French Ministry of Labour and supplemented by interviews. Our results indicate that contact with service recipients does indeed have an influence.     

“The Unbearable Lightness of Cleaning”: Representations of Domestic Practice and Products in Good Housekeeping Magazine (UK): 1951–2001

In this paper we begin to open the black box that constitutes the organisation of domestic cleaning and consumption in the latter half of the twentieth century. We focus specifically on change and continuity in the manner in which cleaning practices and cleaning products are represented in the UK woman's magazine Good Housekeeping, in the late modern period. After a discussion of the modern history of cleanliness, we proceed with a rationale for why this magazine was chosen for our analysis, followed by a summary of our methodology. We then argue that three phases of representation may be delineated in the time period we investigated. The first phase, which is apparent in the 1951 and 1961 issues, we have named “pride in domestic practice” and it covers a period when, what we call “the women's lobby”, speaks in a uniform voice about the tasks of the housewife and the purpose of domestic cleaning. The second phase, manifest in the 1971 and 1981 issues, is termed “domestic dreaming”, and it heralds a period when Good Housekeeping calls its readership to dream about the potentials of a transformed consumer culture. The third phase, which is evident in some respects in 1981, but which is more clearly present in 1991 and 2001, we have called “modern advising in a late modern world”. During this period, Good Housekeeping settles into a new role as a modern advisor of cleaning products and practices within the context of a world that poses significant complexities. Our discussion also focuses on how three values of cleanliness; that associated with germs, aesthetics and efficiency/ease are present in the magazine. Our analysis is contextualised in relation to the cultural silencing of cleanliness in this period and related to social and cultural changes associated with feminism and consumer culture.     

Searching hospital discharge records for snow sport injury: no easy run?

When using hospital discharge data to shape sports injury prevention policy, it is important to correctly identify cases. The objectives of this study were to examine the ease with which snow-skiing and snowboarding injury cases could be identified from national hospital discharge data and to assess the suitability of the information obtained for shaping policy. Hospital discharges for 2000-2004 were linked to compensated claims and searched sequentially using coded and narrative information. One thousand three hundred seventy-six eligible cases were identified, with 717 classified as snowboarding and 659 as snow-skiing. For the most part, cases could not be identified and distinguished using simple searches of coded data; keyword searches of narratives played a key role in case identification but not in describing the mechanism of injury. Identification and characterisation of snow sport injury from in-patient discharge records is problematic due to inadequacies in the coding systems and/or their implementation. Narrative reporting could be improved.     

Evaluating single sign-on security failure in cloud services

Business use of cloud computing services is motivated by ease of use and potential financial cost reductions. Service failure may occur when the service provider does not protect information or when the use of the services becomes overly complex and difficult. The benefits of cloud computing also bring optimization challenges for the information owners who must assess service security risks and the degree to which new human behaviors are required. In this research, we look at the risk of identity theft when ease of service access is provided through a single sign-on (SSO) authorization, asking: What are the optimal behavioral expectations for a cloud service information owner? Federated identity management provides well-developed design literature on strategies for optimizing human behaviors in relation to the new technologies. We briefly review the literature and then propose a working solution that optimizes the trade-off between disclosure risk, human user risk, and service security.     

日本物流探求的六个适用性

经济需求是现代物流产生和发展的前提,现代物流是随着经济的发展而产生和发展的.日本物流现代化水平的提高以及现代物流的全面发展,取决于日本物流发展六个方面的适用性及其平衡发展.这些适用性主要指地区适用性、环境适用性、国际适用性、战略适用性、管理适用性、理论适用性,可分为与国家层面紧密联系的社会经济问题以及与企业层面密切相关的管理问题两类,两者以一种交错复杂的形态存在,存在相互联系或相互对立的关系.     

纳米TiO2光催化剂的制备与应用研究进展

本文综述了国内外对纳米TiO2液相制备方法的研究进展,阐述了液相沉淀法、溶胶-凝胶法、醇盐水解法、水热法等液相制备法,并讨论了纳米TiO2在气体净化、表面自清洁、污水处理、杀菌等方面的应用.     

Determinants of an Organization’s Website Ease of Use: The Moderating Role of Product Tangibility

The ease of use of an organization’s website is central to determining users’ experiences and behavioral intentions. Understanding how the site-related factors contribute to shaping perceived ease of use is thus critical. Nonetheless, we contend that the relative importance of these factors in shaping ease of use may vary according to the product offered by the organization. This research hypothesizes that the information quality of a website and its interactivity and aesthetics are antecedents to perceived ease of use and that the relative tangibility of the offered products moderates these relationships. The hypotheses are examined by performing a large-scale study in which each participant performs a task on one of 59 organizational websites. The study’s hypotheses were supported, and the results were then replicated using a second study conducted on a French-speaking sample. Site information quality is the strongest predictor of perceived ease of use, followed by the site interactivity and aesthetics. The results, however, underscore the moderating role of product tangibility. While the effects of interactivity and aesthetics are greater for sites offering services (e.g., communication, travel, insurance, and financial services), the effect of information quality is stronger for sites offering tangible products (e.g., electronics, books, and home improvement goods). The findings suggest that organizations offering tangible products should focus on providing their sites’ visitors with quality information, whereas organizations offering services should primarily focus on their sites’ aesthetics, interactive, and personalization features.     

A Method to Evaluate the Suitability of Requirements Specifications for Offshore Projects

Today, even the development of business information systems is subject to the global offshoring trend. With the division of development work in an inter-organizational and intercultural context, requirements specifications become the central means to communicate the development scope as explicitly as possible. The suitability of requirements specifications hence often is mission critical in offshore projects. To assess their suitability, we first present eight quality criteria for requirements specifications. We then discuss five critical compensating factors that may potentially balance out an insufficient specification quality during the offshore project. On this basis, we describe a method to rationally evaluate the suitability of requirements specifications for instantiating an offshore project. We illustrate the application of the method by elaborating on a large case study that has been conducted with an industry partner. The results achieved by applying our method were confirmed during the further course of the actual project.     

农民工创业行为演变、特征与适应性分析

农民工创业经历了弱创业认知、创业情感、创业行为倾向三个阶段。不同阶段的农民工创业有不同表现。由于特殊的生活经历及工作环境，决定了农民工最初的创业行为大多属于生存型创业，表现为聚集性、灵活性、模仿性特点。对于农民工创业阶段、特征与适应性分析，需要在整体性视野中认识和把握，这有助于提升农民工创业水平。     

A Prototype System Developed for Digital Rights Management in Electronic Commerce

ABSTRACT

The Internet provides a new way of doing business, but ease of copying and of sharing valuable digital information illegally across the Internet undermines many viable business models. This paper investigates Digital Rights Management (DRM) as a means to provide safe protection and proper delivery of digital contents through the Information highway. First, we briefly summarize the current endeavor of DRM technical development and its standardization process in key technical working groups. Then, the paper provides a generic architecture for a DRM framework and shows the implementation of a prototype DRM system incorporating key conceptual and technical standardization development. This study emphasizes the importance of developing the DRM architecture that provides the proper protection and safe transformation of digital contents in electronic commerce.     

The effects of skirt lining properties on comfort and movement

This study was conducted to clarify the influences of the lining properties of skirts upon comfort and movement. The comfort of lining fabrics and real skirts with and without lining was rated by sensory tests on the basis of sensorial comfort on the skin and body movement. Actual body movements were investigated by motion analysis while the skirts were being worn. The results are described: (1) Comfort on the skin, movement and overall preference for the lining fabrics were evaluated by sensory testing, comparing skirts made with five kinds of lining fabrics. Conventional non‐stretch cupro lining was ranked first on the basis of smoothness and good feel to the skin. Two‐way stretch lining was also ranked highly in terms of ease of movement. We discuss how sensorial comfort on the skin and ease of movement related to overall preference for lining fabrics. (2) Sensory test of the actual skirts with and without lining clearly confirmed that lining played a role in improving comfort. (3) For a non‐stretch fabric skirt, conventional lining was ranked highly for good feel to the skin, and two‐way stretch lining was considered useful for ease of movement. There was no significant difference between the two lining fabrics in overall preference. (4) For a stretch fabric skirt, stretch lining is the most useful because it maintains easy extension of the outer fabric, thus allowing ease of body movement. (5) Motion analysis showed that a combination of knitted stretch skirts with stretch lining was the best for ease of movement. Comparing the sidelines and the hemline of the stretch fabric skirts demonstrated a better shape using lining.