Controlling Social Media Data:a Case Study of the Effect of Social Presence on Consumers’ Engagement with Brand-generated Instagram Posts

Research in social media marketing studies ways to increase customers’ engagement with brand-generated social media posts. This can either be done through experiments, or corpus studies of existing social media posts. Experiments have the advantage that they are controlled, but they often lack ecological validity, while for corpus studies the reverse is often true. As a case study, we construct a corpus of 1761 brand-generated Instagram posts, looking at the effect of social presence (the perception of human contact) on different engagement metrics (likes and comments), taking the effect of possible confounds (theme of slogans, funniness, time) into account. We show how social media posts can be analyzed at different levels of granularity, to establish the strength of the effect of social presence. We hope that our work will help others to isolate the impact of different variables on post engagement on social media

Survivors of Aortic Dissection: Activity, Mental Health, and Sexual Function

BackgroundCurrently no research exists assessing lifestyle modifications and emotional state of acute aortic dissection (AAD) survivors. We sought to assess activity, mental health, and sexual function in AAD survivors.HypothesisPhysical and sexual activity will decrease in AAD survivors compared to pre‐dissection. Incidence of anxiety and depression will be significant after AAD.MethodsA cross sectional survey was mailed to 197 subjects from a single academic medical center (part of larger IRAD database). Subjects were ≥18 years of age surviving a type A or B AAD between 1996 and 2011. 82 surveys were returned (overall response rate 42%).ResultsMean age ± SD was 59.5 ± 13.7 years, with 54.9% type A and 43.9% type B patients. Walking remained the most prevalent form of physical activity (49 (60%) pre‐dissection and 47 (57%) post‐dissection). Physical inactivity increased from 14 (17%) before AAD to 20 (24%) after AAD; sexual activity decreased from 31 (38%) to 9 (11%) mostly due to fear. Most patients (66.7%) were not exerting themselves physically or emotionally at AAD onset. Systolic blood pressure (SBP) at 36 months post‐discharge for patients engaging in ≥2 sessions of aerobic activity/week was 126.67 ± 10.30 vs. 141.10 ± 11.87 (p‐value 0.012) in those who did not. Self‐reported new‐onset depression after AAD was 32% and also 32% for new‐onset anxiety.ConclusionsAlterations in lifestyle and emotional state are frequent in AAD survivors. Clinicians should screen for unfounded fears or beliefs after dissection that may reduce function and/or quality of life for AAD survivors.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116073/1/clc22418_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/116073/2/clc22418.pd

0087: Sleep apneas treatment during cardiac rehabilitation can improve heart failure prognosis? SATELIT-HF study: sleep apnea treatment during cardiac rehabilitation of CHF patients

BackgroundSleep-disordered breathing (SDB) is commonly in chronic heart failure (CHF) patients.Exercise training (ET) improves exercise tolerance and reduces cardiac decompensations in CHF population. Otherwise, ventilation therapy (VT) improves prognosis and exercise capacity in CHF patients with SDB. However, the effect of the combination therapy: ET and VT is still unexplored. The aim of our study is to evaluate the effects on hemodynamic status (cardiac decompensations) of ET and VT in stable CHF patients referred to cardiac rehabilitation (CR).MethodsWe included 118 stable CHF patients with an apnea-hypopnea index (AHI)>15/h diagnosed by polygraphy. They were randomized into exercise training (ET group n=58) or combined exercise and ventilation (ET+VT group n=60). The follow up period was the 8 weeks during which 20 exercise training sessions were scheduled. Severe episodes of cardiac decompensations were recorded.ResultsThe mean age was 62.6±10.3 years, 89% were males, 50% NYHA class II and 50% in class III, mean LVEF was 30%. 40% and 60% of patients had respectively obstructive and central and/or mixed apneas, with a mean AHI 34.4±14.3/h. Patients of ET+VT group had significantly fewer acute cardiovascular events than those of ET group (2/60 vs. 7/58; 3.3% vs. 15.5%, p<0.05).ConclusionVentilation therapy combined with ET in severe CHF patients seems to reinforce benefits of ET alone. Screening of SDB in CR could be proposed in order to optimize the global management of the heart disease

Exercise and Physical Activity for the Post–Aortic Dissection Patient: The Clinician's Conundrum

Despite the paucity of evidence, it is often presumed, and is physiologically plausible, that sudden, acute elevations in blood pressure may transiently increase the risk of recurrent aortic dissection (AD) or rupture in patients with a prior AD, because a post‐dissection aorta is almost invariably dilated and may thus experience greater associated wall stress as compared with a nondilated aorta. Few data are available regarding the specific types and intensities of exercise that may be both safe and beneficial for this escalating patient population. The purpose of this editorial/commentary is to further explore this conundrum for clinicians caring for and counseling AD survivors. Moderate‐intensity cardiovascular activity may be cardioprotective in this patient cohort. It is likely that severe physical activity restrictions may reduce functional capacity and quality of life in post‐AD patients and thus be harmful, underscoring the importance of further exploring the role of physical activity and/or structured exercise in this at‐risk patient population.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116077/1/clc22481_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/116077/2/clc22481.pd

Summary of the Standards, Options and Recommendations for the use of positron emission tomography with 2-[18F]fluoro-2-deoxy-D-glucose (FDP-PET scanning) in oncology (2002)

GuidelinePractice GuidelineResearch Support, Non-U.S. Gov'tinfo:eu-repo/semantics/publishe

Visualizing Intangible Realities in Design

This paper explores an enormous potential of digital media in the area of morphology in industrial design, which goes beyond its extended and widespread possibilities of visualization and materialization. The visualization of the concepts that sustain the identity of our projects, even though they are invisible in finished products, can be explained and made evident through digital media. Intelligible aspects acquire perceptual shapes in order to make its apprehension easier. In this sense, we understand that virtual simulation is an important tool of cognitive mediation