Mapping the Collaborative Platform Economy Business Practice

This study aims to develop a typological configuration that characterizes the full spectrum of collaborative platform economy business practice in the real world. The analysis is conducted on the basis of a large-scale data set which contains information on 1,335 representative platforms in more than 60 countries on five continents, covering almost all collaborative platform economy business practices mentioned in academic journals and public media. Leveraging the k-means clustering method, an empirical typology comprising seven categories of collaborative platform economy business practice is proposed: collaborative support platform, resource supply platform, authentic C2C platform, C2C mutualized mobility platform, hybrid service platform, B2C service platforms, collaborative finance platform. In addition, with the help of operating status data of the collaborative platform economy, a cross-comparative analysis was also carried out on the category differences and geographic differences.

Optimization of spatial distribution of hospitals for better earthquake recovery using GIS and imperialist competition algorithm (case study: Gorgan, Iran)

Purpose The purpose of this study is to optimize the location of hospitals in Gorgan, Iran, to provide desirable services to citizens in the event of an earthquake crisis. Design/methodology/approach This paper, due to target, is practical and developmental, due to doing method is descriptive and analytical and due to information gathering method is documental and surveying. In the present study, the capabilities of genetic algorithms and imperialist competition algorithm in MATLAB environment in combination with GIS capabilities have been used. In fact, cases such as route blocking, network analysis and vulnerability raster have been obtained from GIS-based on current status data, and then the output of this information is entered as non-random heuristic information into genetic algorithms and imperialist competition algorithm in MATLAB environment. Findings After spatial optimization, the hospital service process has become more favorable. Also, the average cost and transfer vector from hospitals to citizens has decreased significantly. By establishing hospitals in the proposed locations, a larger population of citizens can access relief services in less time. Originality/value Spatial optimization of relief centers, including hospitals, is one of the issues that can be of significant importance, especially in the event of an earthquake crisis. The findings of the present study and the originality, efficiency and innovation of the used methods can provide a favorable theoretical framework for the success of earthquake crisis management projects.

Internet of Things-based Street Lighting System with Message Queuing Telemetry Transport and Progressive Web Application

The purpose of this study is to implement the Message Queuing Telemetry Transport (MQTT) protocol and the Progressive Web App (PWA) of the Internet of Things (IoT) based public street lighting system. The MQTT (Message Queuing Telemetry Transport) protocol is a protocol that runs on the TCP / IP stack and is specially designed for machine to machine that does not have a special address. Progressive web application (PWA) is a software creation method by combining regular websites with mobile & desktop applications. This research is a development from previous research on Automatic Public Street Lighting. The development carried out includes a communication system, monitoring of lighting conditions, and automation or manual control of lights. The results obtained are the ease of monitoring lamp conditions and early detection of lamp problems. These results are obtained from the data sent by each street light, in the form of lamp status data, voltage, and electric current, through Long Range (LoRa) communication to the gateway using a radio network. The gateway data is then sent to the broker via the internet using the MQTT protocol and control and monitoring street light conditions using the Real-time Website and a mobile device. This research's impact is that street lighting monitoring and maintenance can be carried out more efficiently.

Measuring Social Mobility in Historic and Less Developed Societies

In societies where surnames are inherited from parents, we can use these names to estimate rates of intergenerational mobility. This chapter explains how to make such estimates, and illustrates their use in pre-industrial England and modern Chile and India. These surname estimates have the advantage that they require much less data than traditional parent–child estimates. They are also more robust to errors in status data. Thus, they can be used to estimate social mobility rates in early societies such as England 1300–1800, or in less developed societies now. Surnames measure a different aspect of social mobility than conventional measures, but this surname measure is the one that matters when we consider group-level convergence of social status, or the time needed for any disadvantaged groups to attain at least average status measured in generations. Surnames thus allow us to measure a key element in the multigenerational mobility process.

Retrospective Analysis of Clinical and Radiologic Data Regarding Zygomatic Implant Rehabilitation with a Long-Term Follow-Up

Background: Zygomatic implants have been introduced to rehabilitate edentulous patients with severely atrophic maxillae. Their use has been reported by several studies, describing high overall survival rates at medium–long follow-up. The aim of this study was to retrospectively analyze if a few patient-related and implant-related features are correlated with implant success or the onset of complications. Materials and methods: Data of patients treated with zygomatic implants between May 2005 and November 2012 at three private clinics were collected and retrospectively analyzed. For each implant, the following data were collected: implant length, insertion path, ridge atrophy and sinus characteristics (width, pneumatization, thickness of mucosae, patency of sinus ostium). General patient characteristics and health status data were also recorded. The outcomes evaluated were implant failure, infective complications, early neurologic complications and overall complications. Results: A total of 33 patients (14 men, 17 women, mean age 59.1) that received 67 zygomatic implants were included in the study. The mean duration of the follow-up was of 141.6 months (min 109; max 198). In this period, a total of 16 (23.88%) implants in 8 (24.24%) patients were removed and 17 (51.51%) patients with 36 (53.73%) implants reported complications. Immediate loading resulted in a significantly lower risk of complications compared with the two-stage prosthetic rehabilitation (OR: 0.04, p = 0.002). A thickness of the sinus mucosa > 3 mm emerged to be correlated with a greater occurrence of infective complications (OR: 3.39, p = 0.019). Severe and extreme pneumatization of the sinus was significantly correlated with the incidence of overall complications (p = 0.037) and implant failure (p = 0.044). A large sinus width was predisposed to a higher risk of neurologic complications, infective complications and implant failure (p = 0.036, p = 0.032, p = 0.04, respectively). Conclusions: zygomatic implants are an alternative procedure for atrophic ridge rehabilitation when a conventional implant placement is not possible. Several clinical and anatomical factors can have a significant role in complication occurrence.

The importance of incorporating relevant-added value into esports sponsorships

PurposeThis research aims to identify how important it is that brands incorporate relevant-added value into their esports sponsorships.Design/methodology/approachThis exploratory research applied a convergent-parallel mixed method with equal status. Data were collected by interviewing 22 experts in esports sponsorships and having 5,638 esports fans fill out an online survey. SPSS 25 was used to analyze quantitative data and NVIVO 10 to process qualitative data. Each dataset was analyzed separately and then compared with both having the same level of importance.FindingsThe results revealed that all experts considered the creation of relevant-added value as an essential strategy for successful esports sponsorships and the large majority of fans want sponsors to apply this tactic. Interestingly, while the experts mostly emphasized ways to directly benefit the fan-base, the fans prefer that sponsors focus on directly supporting the esports industry.Practical implicationsBrands should incorporate relevant-added value into their esports sponsorships as it greatly decreases fan resistance to the promotional message, catches the fans' attention and engagement much more easily, has a much higher probability of leading to high positive return on investments (ROIs) and makes for a much more cost-effective investment.Originality/valueThe field of esports sponsorships has received little academic attention and the results are highly significant and relevant for all current and potential esports sponsors looking to increase the effectiveness of their esports sponsorships.

Comparisons of factors associated with suicidal ideation of older individuals by health status

This study examined the factors associated with suicidal ideation among older individuals and compared those factors by their objective and subjective health status. Data were obtained from the 13th wave of the Korean Health Panel Survey in 2018. The sample of 6,283 older individuals, who are 55 years and older, was classified into four groups by their objective and subjective health status. Objective health status was measured by the number of chronic health conditions, and subjective health status was defined by an individual’s self-reported health status. To examine the factors associated with suicidal ideation among four groups of older individuals, logistic regression analyses were conducted after controlling for socio-demographic characteristics, physical health and mental health characteristics. The results show that depression and anxiety were found as common factors associated with suicidal ideation for all four groups. As for the group of older individuals who reported bad objective health and bad subjective health, younger age, being male, and low educational attainment were found to be associated suicidal ideation. For those with bad objective health regardless of their subjective health status, the level of stress was found to be related to suicidal ideation among older individuals. Based upon those results, the present study discussed practical and policy implications for suicide prevention among older individuals by reflecting their objective health and subjective health status.

Protective and Risk Factors of Depression Among Older Adults During the COVID-19 Pandemic

The coronavirus disease 2019 (COVID-19) pandemic adversely impacted the mental health of older adults. This study aims to explore the associations between protective/risk factors of depression during the pandemic and to examine the differences in these associations by marital status. Data from the Health and Retirement Study 2020 COVID-19 module, released in February, 2021, were used. The level of resilience during the pandemic was selected as a protective factor. The level of COVID-19 pandemic concern was selected as a risk factor. Among older adults aged 51 years and older, the weighted regression model found that higher levels of COVID-19 concern were associated with higher levels of depressive symptoms (p<0.05), whereas higher levels of resilience were associated with lower levels of depressive symptoms (p<0.05). Marital status moderated the association between COVID-19 concern and depressive symptoms. Never-married people were at higher risk of depressive symptoms than married people when COVID-19 concerns increased. It is important to enhance support for never-married people during the pandemic to protect their psychological well-being.

Older Adults Place Greater Importance on a Purposeful Retirement

Sense of purpose is associated with desirable health and well-being measures in older adults. Unfortunately, existing research points to complexity in the connection between purpose and retirement: some but not all people decline in sense of purpose following retirement, and some view it as nonessential to maintain a purpose specifically during retirement. These findings suggest there may be individual differences both in the importance placed on being purposeful specifically during retirement, and that there may be a discrepancy in purpose importance before retirement and during retirement. In this study, we examined whether perceived purpose importance correlates with age and personality, as well as working status. Data were collected from a U.S sample (N = 2,009), aged18-93 (M =48.51). Participants completed a survey assessing the Big Five personality traits and were asked to rate the importance of purpose before and after retirement. Findings suggest that, overall, people believe it wasrbe important to have a purpose and direction during retirement (M = 3.86). Perceived purpose importance during retirement was greater among older, conscientious, and less neurotic adults, but working status did not appear to play a role. Moreover, when comparing perceptions of purpose importance before and during retirement, age was the distinguishing factor differentiating who perceives during-retirement purpose as more important than before-retirement purpose, such that older adults placed greater importance on sense of purpose during retirement. Results indicate that older adults do value having a purpose during retirement, suggesting that purpose-focused interventions may be well-received by this population.