This master thesis is focusing on the information overload in digital marketing and using the method of sentiment analysis to detect if the issue occurs or not. A model and method of different sentiments (positive and negative) were organized, and evaluated based on the statistical and prominent findings of the emotional value in the customer satisfaction in online reviews. Findings were analyzed, as to what data, and categories showed value which proved information overload and these were thereafter connected to previous academic studies of sentiment analysis and customer satisfaction connected to information overload. The results of the analysis proved that the sentiment analysis had significance in some aspects and categories to combat the information overload issue in digital marketing for online consumers.

Many researchers have studied the interaction between choice overload and purchase intention resulting in mixed and sometimes contradictory results. This study extended the current knowledge and examined how rurality (rural vs. urban/suburban) among millennial consumers influences choice overload and purchase intention when presented with extensive or limited options. Using both quantitative survey data and qualitative interviews, the author studied consumer experiences to understand choice overload and purchase intention better. Overall, some of the results suggest a statistical difference between rural and urban/suburban participants in their feelings of choice overload. However, many of the results were small and unlikely to be of practical significance. Additionally, the interviews were analyzed and multiple themes emerged, including possible factors that may support prior meta-analytic conclusions about the nuance of choice overload.

Den här uppsatsen undersöker om det går att finna några samband mellan den informationsmängd ett företags årsredovisning innehåller och hur effektivt informationen prisas in av marknaden. Resultat från tidigare forskning går isär gällande vilken påverkan en ökad informationsmängd har på marknadseffektiviteten. Uppsatsen använder sig av en eventstudiemetod som baseras på ett urval av 278 företag som ingick i indexet Nasdaq OMX Stockholm under 2019. Kumulativ abnormal totalavkastning (CAR) används i uppsatsen som mått för hur effektivt marknaden prisar in ny information. Sambandet mellan informationsmängden och CAR undersöks med hjälp av regressionsanalys. Resultaten från studien visar inte några signifikanta samband mellan en årsredovisnings informationsmängd och marknadseffektiviteten. Inga slutsatser kan därmed dras gällande hur sambandet ser ut mellan informationsmängd i företags årsredovisning och hur effektivt informationen prisas in. Uppsatsen kan dock bidra med kunskap till framtida forskning på området.

The objective of the study was to investigate how individual appraisal of high workload as a challenge or a hindrance stressor correlates with work engagement and burnout. The work environment is fraught with high workloads, resulting in stress for employees. The cost of employee stress and ill health to organisations and society is reported to be high due to lost productivity and healthcare costs. The current study used the challenge-hindrance stressor model to determine the impact of appraisal on the relationship between work overload and work engagement/burnout. The current study proposed that employees experience both work engagement and burnout concurrently depending on whether they appraise work overload as a challenge or a hindrance stressor. An explanatory quantitative design was used to survey employees from multiple organisations in South Africa, yielding 144 full-time, permanently employed respondents. Findings from the study indicated that stressors that were appraised as challenges were linked to work engagement, whereas stressors that were appraised as hindrances were linked to burnout. The study also found that employees appraise work overload as a hindrance not a challenge, resulting in a negative relationship between work overload and work engagement and a positive relationship between work overload and burnout. The implication is that when employees have high workloads, their engagement does not increase; their likelihood of burnout increases. The study determined no positive outcomes of high workloads, only the risk of highly engaged employees becoming fatigued and burnt out. Hence, it is recommended that organisations manage the workloads of their employees.

Altered gut microbial diversity has been associated with several chronic disease states, including heart failure. Stimulation of the vagus nerve, which innervates the heart and abdominal organs, is proving to be an effective therapeutic in heart failure. We hypothesized that cervical vagus nerve stimulation (VNS) could alter fecal flora and prevent aberrations observed in fecal samples from heart failure animals. To determine whether microbial abundances were altered by pressure overload (PO), leading to heart failure and VNS therapy, a VNS pulse generator was implanted with a stimulus lead on either the left or right vagus nerve before creation of PO by aortic constriction. Animals received intermittent, open-loop stimulation or sham treatment, and their heart function was monitored by echocardiography. Left ventricular end-systolic and diastolic volumes, as well as cardiac output, were impaired in PO animals compared with baseline. VNS mitigated these effects. Metagenetic analysis was then performed using 16S rRNA sequencing to identify bacterial genera present in fecal samples. The abundance of 10 genera was significantly altered by PO, 8 of which were mitigated in animals receiving either left- or right-sided VNS. Metatranscriptomics analyses indicate that the abundance of genera that express genes associated with ATP-binding cassette transport and amino sugar/nitrogen metabolism was significantly changed following PO. These gut flora changes were not observed in PO animals subjected to VNS. These data suggest that VNS prevents aberrant gut flora following PO, which could contribute to its beneficial effects in heart failure patients.

This study develops and tests a model where work-family conflict is posited as a mediator between work overload and burnout (exhaustion and disengagement), and positive affectivity as a moderator of the relationships between work overload, and work-family conflict and burnout. Data for the study were collected from a sample of 620 full-time frontline hotel employees in Turkey. Hierarchical multiple regression analysis was employed in analyzing the data. The results show that work-family conflict fully mediates the impacts of work overload on exhaustion and disengagement. Also positive affectivity reduces the effect of work-family conflict on disengagement. Implications of the empirical results and directions for future research are delineated in the study. In this study we develop a model and test eight hypotheses that are based on the precepts of the Conservation of Resources (COR) theory [16]. We contend that work overload is a predictor of work-family conflict which influences the two dimensions of burnout (exhaustion and disengagement). In other words, our model proposes that work-family conflict acts as a full mediator between work overload and the burnout dimensions. In the remainder of the paper, we present our hypotheses. This is followed by discussions of the method and findings of our empirical study. We conclude with implications of the results and directions for future research.

Objective: Pediatric cancer caregivers will encounter circumstances that will challenge their personal resources to face the diverse demands of care. Therefore, the objective of the study was to determine the relationship between burden syndrome and coping strategies in caregivers of pediatric cancer patients. Method: 93 main caregivers of pediatric cancer patients participated (69.9% women, 30.1% men, mean age = 37.20 years, SD = 11.32), selected in a non-probabilistic way. The Caregiver Burden Scale and the COPE-28 Questionnaire were applied. Correlational and comparative statistics were used for data analysis. Results: The results indicate the presence of significant and inverse correlations that vary between r =-.25 and r =-.56. However, no significant association was found between the dimensions of caregiver burden and substance use. On the other hand, those caregivers who use poorly adaptive strategies are more likely to generate overload in relation to their role, influencing their personal, family and social life. Conclusion: There is a significant relationship between overload syndrome and coping strategies. In addition, significant differences in overload are identified according to the place of origin and the hours dedicated to care.

Iron overload conditions are a prevalent issue in global healthcare that require the accurate monitoring of iron levels to effectively provide treatment. X-ray fluorescence has emerged as a candidate for a point-of-care measurement tool for the detection of trace elements in vivo. This study explores the feasibility of a portable in vivo x-ray fluorescence (IVXRF) instrument using 125I as a point-of-care device in measuring skin iron levels. The system was calibrated using iron-doped water phantoms for various physiologically-applicable iron concentrations. Measurements were conducted on ex vivo rat skin samples (n = 34), which were then compared to a benchmark laboratory-based XRF system. Monte Carlo modelling using MCNP 6.2 was used to simulate the system in different conditions and provide an estimate of the radiation dose of the system on soft tissue. The R2 value for the calibration line of iron concentration in ppm to normalized iron signal was determined to be 0.985 (p < 0.01). For a measurement period of 1800 s real-time, the minimum detectable limit (MDL) of the system is 3.86 ± 0.06 ppm of iron. The R2 value for the linear regression between the IVXRF and benchmark XRF system normalized iron signals was 0.731 (p < 0.01). The R2 value for the linear regression between the IVXRF normalized iron signal and sample injected iron dose was 0.719 (p < 0.01), meaning the system can distinguish between different iron levels in rat skin. From the Monte Carlo simulations, the expected effective dose contribution from the IVXRF system is 101.68 ± 0.03 nSv. The IVXRF system was shown to accurately measure iron concentrations in ex vivo rat skin samples within the iron concentration ranges found within healthy and iron-overloaded patients. Further work shall be conducted to validate the system in in vivo applications. / Thesis / Master of Science (MSc) / Iron overload is a prevalent issue in healthcare, with many individuals experiencing detrimental symptoms, such as organ damage and heart failure. Modern treatment significantly improves quality of life but must be continuously monitored. This thesis covers the development of a non-invasive, cost-effective, and accurate system that can measure skin iron levels in patients to ensure effective monitoring. The results from this thesis suggest that the system can be used for clinical use to measure patient skin iron levels. It can theoretically measure iron in patients with normal and elevated iron levels. Simulation work suggests that the system will lead to negligible risk from radiation exposure. While this thesis and its findings support the feasibility of the system, further work is required before clinical implementation of the device.

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