Blurred (Identity) Lines: A Content Analysis of the #deleteuber Crisis on Twitter

Social media have established a growing prevalence and influence in social change, in political movements, and as vehicles for messages related to crisis. The movement #deleteuber demonstrated this growing trend. Using quantitative content analysis, 2,000 tweets posted on Twitter were analyzed in the 2 weeks following the incident to measure how media framing may impact organizational identity. Findings reveal that users on Twitter largely framed the crisis as political, opinionated, and episodic in nature. Additionally, users most commonly associated the crisis with the organization as a collective rather than with the CEO as an individual responsible for actions prompting the crisis, thus blurring the demarcation between personal and organizational identity in online spaces

Uspon ambasadora robne marke: društveni udio, korporativna društvena odgovornost i utjecaj među utjecajnim osobama na društvenim mrežama

One of social media’s influences on public relations has been the connection they provide organizations with stakeholder groups, and the need to recognize new and emerging stakeholder groups and their influence on the organization. One such stakeholder group with social media-borne influence and recognition in public relations is brand ambassadors, who distribute organizational content to social networks. This study examines the meanings and motivations of brand ambassadors in establishing relationships with an organization, and their considerations in representing and distributing content for an organization. In particular, we examined the consideration of corporate social responsibility (CSR) content among brand ambassadors. Findings suggest complex considerations of loyalties, commitments, and stakes within the brand ambassador-organization relationship. CSR content’s value among ambassadors was questionable. The ethical issues of organizational ties, including compensation, are discussed.Jedan od utjecaja društvenih medija na odnose s javnošću bila je veza koju osiguravaju organizacijama sa skupinama dionika te potreba za prepoznavanjem novih i novonastalih skupina dionika i njihovog utjecaja na organizaciju. Jedna takva skupina dionika s utjecajem na društvenim mrežama i prepoznatljivošću u odnosima s javnošću su ambasadori robnih marki, koji distribuiraju organizacijski sadržaj društvenim mrežama. Ova studija ispituje značenja i motivaciju ambasadora robne marke u uspostavljanju odnosa s organizacijom te njihova razmatranja u predstavljanju i distribuciji sadržaja za organizaciju. Konkretno, ispitali smo razmatranje sadržaja o društveno odgovornom poslovanju (CSR) među ambasadorima brendova. Nalazi upućuju na složena razmatranja lojalnosti, obveza i udjela unutar odnosa ambasadora marke i organizacije. Vrijednost sadržaja DOP-a među veleposlanicima bila je upitna. Razmatraju se etička pitanja organizacijskih veza, uključujući naknade

Use of Flow Cytometry and Stable Isotope Analysis to Determine Phytoplankton Uptake of Wastewater Derived Ammonium in a Nutrient-rich River

Anthropogenic alteration of the form and concentration of nitrogen (N) in aquatic ecosystems is widespread. Understanding availability and uptake of different N sources at the base of aquatic food webs is critical to establishment of effective nutrient management programs. Stable isotopes of N (14N,15N) are often used to trace the sources of N fuelling aquatic primary production, but effective use of this approach requires obtaining a reliable isotopic ratio for phytoplankton. In this study, we tested the use of flow cytometry to isolate phytoplankton from bulk particulate organic matter (POM) in a portion of the Sacramento River, California, during river-scale nutrient manipulation experiments that involved halting wastewater discharges high in ammonium (NH4 +). Field samples were collected using a Lagrangian approach, allowing us to measure changes in phytoplankton N source in the presence and absence of wastewater derived NH4 +. Comparison of δ15N-POM and δ15N-phytoplankton (δ15N-PHY) revealed that their δ15N values followed broadly similar trends. However, after 3 days of downstream travel in the presence of wastewater treatment plant (WWTP) effluent, δ15N-POM and δ15N-PHY in the Sacramento River differed by as much as 7‰. Using a stable isotope mixing model approach, we estimated that in the presence of effluent between 40 and 90% of phytoplankton-N was derived from NH4 + after 3 days of downstream transport. An apparent gradual increase over time in the proportion of NH4 + in the phytoplankton N pool suggests that either very low phytoplankton growth rates resulted in an N turnover time that exceeded the travel time sampled during this study, or a portion of the phytoplankton community continued to access nitrate even in the presence of elevated NH4 + concentrations

Alcohol, Hospital Discharge, and Socioeconomic Risk Factors for Default from Multidrug Resistant Tuberculosis Treatment in Rural South Africa: A Retrospective Cohort Study

Background: Default from multidrug-resistant tuberculosis (MDR-TB) treatment remains a major barrier to cure and epidemic control. We sought to identify patient risk factors for default from MDR-TB treatment and high-risk time periods for default in relation to hospitalization and transition to outpatient care. Methods: We retrospectively analyzed a cohort of 225 patients who initiated MDR-TB treatment between 2007 through 2010 at a rural TB hospital in the Western Cape Province, South Africa. Results: Fifty percent of patients were cured or completed treatment, 27% defaulted, 14% died, 4% failed treatment, and 5% transferred out. Recent alcohol use was common (63% of patients). In multivariable proportional hazards regression, older age (hazard ratio [HR]= 0.97 [95% confidence interval 0.94-0.99] per year of greater age), formal housing (HR=0.38 [0.19-0.78]), and steady employment (HR=0.41 [0.19-0.90]) were associated with decreased risk of default, while recent alcohol use (HR=2.1 [1.1-4.0]), recent drug use (HR=2.0 [1.0-3.6]), and Coloured (mixed ancestry) ethnicity (HR=2.3 [1.1-5.0]) were associated with increased risk of default (P<0.05). Defaults occurred throughout the first 18 months of the two-year treatment course but were especially frequent among alcohol users after discharge from the initial four-to-five-month in-hospital phase of treatment, with the highest default rates occurring among alcohol users within two months of discharge. Default rates during the first two months after discharge were also elevated for patients who received care from mobile clinics. Conclusions: Among patients who were not cured or did not complete MDR-TB treatment, the majority defaulted from treatment. Younger, economically-unstable patients and alcohol and drug users were particularly at risk. For alcohol users as well as mobile-clinic patients, the early outpatient treatment phase is a high-risk period for default that could be targeted in efforts to increase treatment completion rates

Evolution of aphasic naming errors following phonomotor treatment

The primary outcome measures for aphasia treatment investigations targeting anomia typically include naming accuracy of trained and untrained words. Recently, several treatment investigations have also included error analyses that closely look at the way in which word retrieval breaks down pre-treatment vs. post-treatment (Gordon, 2007; Kendall, Pompon, Brookshire, Minkina, & Bislick, 2013; Kiran & Johnson, 2008, Kiran & Thompson, 2003). In one such analysis, Kendall et al. (2013) investigated treatment-induced changes in aphasic naming errors following a phonomotor treatment for anomia. The study was rooted in an interactive two-stage model of word retrieval, in which world retrieval is initiated with activation of semantic representations, allowing for access of the word’s lemma (which holds grammatical properties), while phonological representations are accessed in the second stage (Dell, 1986). In the analyses of confrontation naming errors in ten people with aphasia, several trends were noted immediately following treatment: a decrease in the proportion of omissions on trained words, and an increase in the proportion of mixed (phonologically and semantically related) errors on untrained words. These results suggested that treatment led to more precise activation of nodes supporting word retrieval. The present study sought to replicate this error proportion analysis in a larger group of participants and expand the analysis to explore changes in raw numbers of errors. The following research questions were asked both for trained and untrained words: Preliminary research question 1) Is there a significant difference between picture naming accuracy pre-treatment vs. immediately post-treatment, and pre-treatment vs. three months post-treatment? Main research questions 2) Is there a significant difference in raw numbers of various error types made during picture naming pre-treatment vs. immediately post-treatment, and pre-treatment vs. three months post-treatment? 3) Is there a significant difference in error type proportions (the number of each error type divided by the total errors made) observed during picture naming pre-treatment vs. immediately post-treatment, and pre-treatment vs. three months post-treatment

Convocation

Program listing performers and works performe

Why do avian responses to change in Arctic green-up vary?

Global climate change has altered the timing of seasonal events (i.e., phenology) for a diverse range of biota. Within and among species, however, the degree to which alterations in phenology match climate variability differ substantially. To better understand factors driving these differences, we evaluated variation in timing of nesting of eight Arctic-breeding shorebird species at 18 sites over a 23-year period. We used the Normalized Difference Vegetation Index as a proxy to determine the start of spring (SOS) growing season and quantified relationships between SOS and nest initiation dates as a measure of phenological responsiveness. Among species, we tested four life history traits (migration distance, seasonal timing of breeding, female body mass, expected female reproductive effort) as species-level predictors of responsiveness. For one species (Semipalmated Sandpiper), we also evaluated whether responsiveness varied across sites. Although no species in our study completely tracked annual variation in SOS, phenological responses were strongest for Western Sandpipers, Pectoral Sandpipers, and Red Phalaropes. Migration distance was the strongest additional predictor of responsiveness, with longer-distance migrant species generally tracking variation in SOS more closely than species that migrate shorter distances. Semipalmated Sandpipers are a widely distributed species, but adjustments in timing of nesting relative to variability in SOS did not vary across sites, suggesting that different breeding populations of this species were equally responsive to climate cues despite differing migration strategies. Our results unexpectedly show that long-distance migrants are more sensitive to local environmental conditions, which may help them to adapt to ongoing changes in climate. climate change, migration, NDVI, nest initiation, phenology, shorebirdspublishedVersio

Convocation

Program listing performers and works performe

Procalcitonin Is Not a Reliable Biomarker of Bacterial Coinfection in People With Coronavirus Disease 2019 Undergoing Microbiological Investigation at the Time of Hospital Admission

Abstract Admission procalcitonin measurements and microbiology results were available for 1040 hospitalized adults with coronavirus disease 2019 (from 48 902 included in the International Severe Acute Respiratory and Emerging Infections Consortium World Health Organization Clinical Characterisation Protocol UK study). Although procalcitonin was higher in bacterial coinfection, this was neither clinically significant (median [IQR], 0.33 [0.11–1.70] ng/mL vs 0.24 [0.10–0.90] ng/mL) nor diagnostically useful (area under the receiver operating characteristic curve, 0.56 [95% confidence interval, .51–.60]).</jats:p