Search results

Localization is a fundamental problem in wireless sensor networks. In many applications, sensor location information is critical for data processing and meaning. While the global positioning system (GPS) can be used to determine mote locations with meter precision, the high hardware cost and energy requirements of GPS receivers often prohibit the ubiquitous use of GPS for location estimates. This high cost (in terms of hardware price and energy consumption) of GPS has motivated researchers to develop localization protocols that determine mote locations based on cheap hardware and localization algorithms. The purpose of this paper is to present a comprehensive review of wireless sensor network localization techniques, and provide a detailed overview for several distance‐based localization algorithms.

To provide a detailed summary of wireless sensor network localization algorithms, the authors outline a tiered classification system in which they first classify algorithms as distributed, distributed‐centralized, or centralized. From this broad classification, the paper then further categorizes localization algorithms using their protocol techniques. By utilizing this classification system, the authors are able to provide a survey of several wireless sensor network localization algorithms and summarize relative algorithm performance based on the algorithms' classification.

There are numerous localization algorithms available and the performance of these algorithms is dependent on network configuration, environmental variables, and the ranging method implemented. When selecting a localization algorithm, it is important to understand basic algorithm operation and expected performance. This tier‐based algorithm classification system can be used to gain a high‐level understanding of algorithm performance and energy consumption based on known algorithm characteristics.

Localization is a widely researched field and given the quantity of localization algorithms that currently exist, it is impossible to present a complete review of every published algorithm. Instead, the paper presents a holistic view of the current state of localization research and a detailed review of ten representative distance‐based algorithms that have diverse characteristics and methods. This review presents a new classification structure that may help researchers understand, at a high‐level, the expected performance and energy consumption of algorithms not explicitly addressed by our work.

The aim of this paper is to use the special context of the Kenyan encampment policy to interrogate the role of social capital as a driver of resourcing for entrepreneurial action in the resource-constrained environment of refugee entrepreneurship in Kenya.

This paper takes conceptual and case study approaches to investigate how refugees deploy social capital to aggregate and recombine resources for entrepreneurial action and livelihood outcomes. It draws on 21 selected secondary sources and semi-structured interviews of 24 respondents from Kakuma camp and Kalobeyei settlement, as well as Nairobi city in Kenya.

This study proposes a new conceptual framework that illuminates the interaction between social capital, resource aggregation and resource recombination for entrepreneurial action and livelihood recovery. This framework was elucidated within the specific Kenyan context, where social capital was found to play a key role in enabling access to other resources such as financial and human capital to refugee entrepreneurs that would otherwise be inaccessible within the resource-constrained context. It also underlines the capacity of refugees to mobilise these resources in the creation of new ecosystems and institutions.

While the conceptual contribution of the paper holds broad explanatory powers, the empirical aspect is limited in terms of its focus on the Kenyan contexts. Future studies can benefit from cross-country comparisons of empirical, including longitudinal, data.

This paper argues for a new approach that can enable better integration of refugees through the provision of opportunities for full economic participation for refugees. This will be a win-win outcome for both refugees and host communities.

This paper makes original contribution by proposing a new conceptual framework that explains the bricoleur’s resource process through the lense of social capital in a resource-constrained and challenging institutional environment. This framework is elucidated with empirical qualitative data from Kenya. This study also signposts new operational and policy directions for humanitarian action among refugees.

The purpose of this paper is to investigate the factors perceived to be associated with the design and delivery of an effective Olympic Games preparation camp.

To identify and explore such factors, interviews were conducted with eight members of a preparation camp delivery team for the London 2012 Olympic Games, and with two athletes who had participated in Olympic preparation camps.

The results identified four overarching factors that should be considered when designing and delivering an effective Olympic preparation camp: planning, operations, environment, and the delivery team. To illustrate the interrelationships between these factors and situate them within the holistic preparation camp context, an operational model was developed. This model also portrays the chronological ordering of events, individuals involved at each stage, and athlete-centered nature of an Olympic preparation camp.

Despite the significant amount of Olympic-related research at organizational, environmental, and individual levels, no research to date has holistically examined Olympic preparation camps per se. This study provides the first insight into the factors associated with the design and delivery of an effective Olympic preparation camp, and potential interrelationships between these factors.

The aim of this paper was to investigate the criteria and sub-criteria with the most impact on determining a suitable location for refugee camps. This paper also analysed the relationships between the main criteria used in the selection process.

This study applied a combination of fuzzy methods and the Decision-Making Trial and Evaluation Laboratory (DEMATEL) and Analytical Network Process (ANP) methods as tools for multiple-criteria decision analysis. A questionnaire was distributed to field workers in an international humanitarian organization team.

Five main criteria and twenty sub-criteria were defined. Between them, the highest ranked sub-criteria were long-term planning, optimal distribution and opportunity for growth. These findings were specific to the interviewed respondents of presented research at the time the data were collected and offer a potential research design for future research examining different organizations and teams.

The methods and evaluation were based on human opinions that were potentially biased.

The results of this study could be useful to government organizations, UN agencies, humanitarian organizations and other decision-making parties in selecting camp locations for refugees or internally displaced people according to how the importance of particular sub-criteria is understood.

New sub-criteria were included in this research. To date, the combination of fuzzy, DEMATEL and ANP methods has not been previously used in relation to these issues. Scientific knowledge concerning refugee camp siting problems is limited. This research extends this knowledge with the involvement of humanitarian workers as respondents. This paper also offers organizations a process for solving complex decision-making problems with long-term results or effect.

The average American child spends more time “playing”¹ than doing any other activity besides sleeping and attending school (watching television comes in next, with children gradually replacing play time with TV time as they grow older) (Hofferth & Sandberg, 2001a, b). In fact, free, unstructured time makes up between 20 and 50% of children’s waking hours² (Hofferth & Sandberg, 2001a, b; Larson & Richards, 1989). Nonetheless, sociologists currently know very little about how children’s free time use influences their well-being. Although scholars, teachers, and parents all have strong opinions about the types of free-time activities that they think are “best” for children, recent studies of the association between children’s time use and their well-being have failed to find consistent associations (Hofferth & Sandberg, 2001a, b; McHale, Crouter & Tucker, 2001).

This study aims to uncover in-depth examples of how emergent media affects parents’ views and socialization efforts. The study examines these views and efforts in the context of violent commercials.

The authors collected data for this paper using two studies. In Study 1, they collected data from the internet. Comments related to “violent ads” or “violent commercials” were collated and analyzed. For Study 2, they conducted in-depth interviews with mothers on their views on parental mediation and impact of media on their children.

The internet data helped develop a parental definition of violent ads and identify that parents lie on a continuum regarding their concerns about violent commercials. Further in-depth questioning of parents on the above finding led to the identification of four clusters of parents. “Media managers” attempt to control and restrict their child’s media environment while educating their child about the effects of violent commercials. “Enablers” spend abundant time co-viewing primetime TV while engaging their child in conversations on violence, but not on violent ads. To maintain harmony in the household, “Harmonizers” merely restrict viewing of violent commercials without educating their child about its effects. Finally, “Agent evaluators” are likely to co-view violent commercials, without discussing them with their child.

First, several of the parental segments (media managers, enablers and harmonizers) tend to note some concerns with violence in advertising. Importantly, this concern for violence appears to be limited to gore and use of physical weapon. Second, while parents do not have homogenous views on violent ads, those who are concerned also have differing roots of concern. This influences their mediation efforts. Third, socialization is bi-directional at times.

Many parents do not approve are the use of physical violence, use of weapons and depiction of blood/gore even in ads for movies or videogames. Advertisers might be wise to avoid such content in ads directed to children. Second, if media and marketing managers could plan to sponsor TV shows (vs placing violent ads) that offer ad-free program time, parents might respond positively. Third, as socialization is bi-directional, advertisers could consider using ad scenarios where parents and children engage with the pros and cons of a certain product or content, thus enabling parent-child conversations to make an informed decision.

Many parents notice violence in ads; policymakers could consider developing ratings for ads that consider the amount and type of violence while rating an ad. Second, a focus on increasing parental awareness on the harms of constantly exposing children to violent commercials might change the views of some parents who currently believe that a few or no violent commercials are being aired during children’s programs. Finally, parents envisage a greater role for media in their lives, and policymakers will have to suggest ways to effectively integrate media content in one’s lives rather than just suggest bans or restrictions.

The contributions of this paper include viewers’ (vs researchers’) definition of violent commercials, showcasing that parents are likely to manage media using new media options such as Netflix, and some parents are likely to co-create rules with their children.

This qualitative study was conducted to answer two questions concerning service learning in youth populations: Do teens understand their roles in the process of service learning? How do teens perceive service opportunities within their communities or organizations? The intent was to investigate these issues in order to provide depth to the research on youth voice and perceptions in service learning activities. Focus groups were conducted with teens involved in various organizations. Findings included that teens were able to articulate a strong definition of service learning as well as identify service activities. Most felt they had a voice in planning and implementation and saw adults as key to the evaluation of projects. Some teens felt, however, that adults often have too great a voice in the planning stages. Recommendations include professional development for adults on working with teens and evaluating current programs to make certain that youth voice is present.

People experiencing homelessness are uniquely vulnerable to the impacts of a pandemic, such as COVID-19. Therefore, governments across Canada have been implementing a patchwork of responses to address the needs of those who are homeless at this time. The purpose of this study is to both compile and assess the varying responses by exploring the breadth of actions presented in print and social media.

Rapid review methodology is a means of compiling a breadth of information to compare and contrast policy implementations. Herein, the authors provide a comprehensive rapid review of responses to homelessness considered through a health equity lens.

Based on policy implementations to date, the authors offer eight recommendations of potentially promising practices among these responses. Situated within a capabilities approach, the authors call upon governments to provide a full breadth of responses to ensure that both health and housing are better protected and obtained during the COVID-19 pandemic.

This paper presents the first comprehensive review of local government responses to homelessness in the context of COVID-19.

Those of us in our mid‐thirties can just barely remember the tourist homes, guesthouses, small hotels, and “mom and pop” tourist cabins which once dotted the two‐lane highways of this country, roads like Route 66 which spanned the country east to west and U.S. I which ran from Maine to Florida. However, aided by the developing interstate highway system, Holiday Inn, Best Western, and several other major chains spread themselves all over the landscape in the 1960s and 1970s and won a large part of the growing leisure and business travel dollar. Indeed, Holiday Inn's ubiquitous qualities were so thoroughly standardized that the company adopted the slogan, “The best surprise is no surprise.” The trouble is some people like to be surprised, especially if the surprise is a pleasant one. Until a few years ago, the traveler looking for a more interesting or cheaper accommodation than a typical chain motel had few guidebooks to choose from. Country Inns and Back Roads and Farm, Ranch and Country Vacations were about all that were available. Since the late 1970s, however, a steady stream of alternative accommodation books has appeared, and now any library faced with choosing guidebooks for the reference collection finds a bewildering number of them. In this review I will examine and evaluate what is available to guide the traveler to alternative accommodations in the United States and Canada. I'll look at bed and breakfast guides, guides to country inns, farm vacations, and college campus accommodations, but not camping guides.

In a world where every competitive advantage must be fully exploited, productive diversity – utilising Australia’s linguistic and cultural diversity to economic benefit – offers a practical resource, which no organisation, including government, can afford to ignore. Astute employers have begun to tap this resource – people who speak the language, understand the culture and often maintain business and personal contacts in countries where they want to do business. The respondents in this research tell the story of the potential bottom line value of this unique human resource, termed productive diversity (that has been coined to describe the use of our language, skills and cultural diversity for economic benefit). This is a resource‐based study focussing on cultural resources and links to the country of origin as a sustained competitive advantage and a strategy for success of the ethnic business operations in Australia. It presents case studies/stories of ethnic entrepreneurs who have succeeded in business through productive diversity.