147 research outputs found
Introduction: Critical Pedagogy Under the Radar and Off the Grid
Fall 2010: We (Tricia, Donna, and Pat) are beginning to feel restless as our college is in the throws of devising “measurable standards” and, accordingly, “input-output” measurement schemes in preparation for an upcoming TEAC review that looms one year on the horizon. At times together and at times separately, we sit through many meetings about rubrics, e-portfolios, and espoused best practices, feeling antsy and angst-y, not very different from bored high schoolers texting each other in the back of the classroom. After we leave these faculty brainstorming sessions, we enter into our classrooms where we work with pre-service and in-service teachers and administrators, and we introduce them to critical pedagogy. Our students receive the content and pedagogy with mixed reactions. Some feel quite liberated, perhaps vindicated because this is how they had been teaching all along. Others think criticality is “nice, but impractical,” and some consider it counter-productive to helping students meet proficiency on standardized math and reading exams. Whichever the case, there seems to be a common sentiment among many of our students that critical pedagogy would be great in an ideal world, but in the “real world” of schools, it simply can’t happen because “there just isn’t time” or “it doesn’t align with the standards” or “it would be seen as insubordination by the administration.
Infectious diarrhea in tourists staying in a resort hotel.
An outbreak of infectious diarrhea with 70 laboratory-confirmed cases (58 with Giardia lamblia) and 107 probable cases occurred in U.K. tourists who stayed in a hotel in Greece. After a cluster of six cases in persons who had stayed at the hotel was reported, the Communicable Disease Surveillance Centre began active case ascertainment. This outbreak illustrates the value of an approach to surveillance that integrates routine surveillance data with active case ascertainment
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RTOG 0518: Randomized Phase III Trial to Evaluate Zoledronic Acid for Prevention of Osteoporosis and Associated Fractures in Prostate Cancer Patients
Background: RTOG 0518 evaluated the potential benefit of zoledronic acid therapy in preventing bone fractures for patients with high grade and/or locally advanced, non-metastatic prostate adenocarcinoma receiving luteinizing hormone-releasing hormone (LHRH) agonist and radiotherapy (RT). Methods: Eligible patients with T-scores of the hip ( −2.5 vs. > −1.0) and negative bone scans were prospectively randomized to either zoledronic acid, 4 mg, concurrently with the start of RT and then every six months for a total of 6 infusions (Arm 1) or observation (Arm 2). Vitamin D and calcium supplements were given to all patients. Secondary objectives included quality of life (QOL) and bone mineral density (BMD) changes over a period of three years. Results: Of 109 patients accrued before early closure, 96 were eligible. Median follow-up was 36.3 months for Arm I and 34.8 months for Arm 2. Only two patients experienced a bone fracture (1 in each arm) resulting in no difference in freedom from any bone fracture (p=0.95), nor in QOL. BMD percent changes from baseline to 36 months were statistically improved with the use of zoledronic acid compared to observation for the lumbar spine (6% vs. −5%, p<0.0001), left total hip (1% vs. −8%, p=0.0002), and left femoral neck (3% vs. −8%, p=0.0007). Conclusions: For patients with advanced, non-metastatic prostate cancer receiving LHRH agonist and RT, the use of zoledronic acid was associated with statistically improved BMD percent changes. The small number of accrued patients resulted in decreased statistical power to detect any differences in the incidence of bone fractures or QOL
Breaking antimicrobial resistance by disrupting extracytoplasmic protein folding
Antimicrobial resistance in Gram-negative bacteria is one of the greatest threats to global health. New antibacterial strategies are urgently needed, and the development of antibiotic adjuvants that either neutralize resistance proteins or compromise the integrity of the cell envelope is of ever-growing interest. Most available adjuvants are only effective against specific resistance proteins. Here we demonstrate that disruption of cell envelope protein homeostasis simultaneously compromises several classes of resistance determinants. In particular, we find that impairing DsbA-mediated disulfide bond formation incapacitates diverse β-lactamases and destabilizes mobile colistin resistance enzymes. Furthermore, we show that chemical inhibition of DsbA sensitizes multidrug-resistant clinical isolates to existing antibiotics and that the absence of DsbA, in combination with antibiotic treatment, substantially increases the survival of Galleria mellonella larvae infected with multidrug-resistant Pseudomonas aeruginosa. This work lays the foundation for the development of novel antibiotic adjuvants that function as broad-acting resistance breakers.British Society for Antimicrobial Chemotherapy BSAC-2018-0095NC3Rs NC/V001582/1Biological Sciences Research Council BB/V007823/1Academy of Medical Sciences SBF006\104
Acute Trauma Factor Associations With Suicidality Across the First 5 Years After Traumatic Brain Injury
AbstractObjectiveTo determine whether severity of head and extracranial injuries (ECI) is associated with suicidal ideation (SI) or suicide attempt (SA) after traumatic brain injury (TBI).DesignFactors associated with SI and SA were assessed in this inception cohort study using data collected 1, 2, and 5 years post-TBI from the National Trauma Data Bank and Traumatic Brain Injury Model Systems (TBIMS) databases.SettingLevel I trauma centers, inpatient rehabilitation centers, and the community.ParticipantsParticipants with TBI from 15 TBIMS Centers with linked National Trauma Data Bank trauma data (N=3575).InterventionsNot applicable.Main Outcome MeasuresSI was measured via the Patient Health Questionnaire 9 (question 9). SA in the last year was assessed via interview. ECI was measured by the Injury Severity Scale (nonhead) and categorized as none, mild, moderate, or severe.ResultsThere were 293 (8.2%) participants who had SI without SA and 109 (3.0%) who had SA at least once in the first 5 years postinjury. Random effects logit modeling showed a higher likelihood of SI when ECI was severe (odds ratio=2.73; 95% confidence interval, 1.55–4.82; P=.001). Drug use at time of injury was also associated with SI (odds ratio=1.69; 95% confidence interval, 1.11–2.86; P=.015). Severity of ECI was not associated with SA.ConclusionsSevere ECI carried a nearly 3-fold increase in the odds of SI after TBI, but it was not related to SA. Head injury severity and less severe ECI were not associated with SI or SA. These findings warrant additional work to identify factors associated with severe ECI that make individuals more susceptible to SI after TBI
Post-Traumatic Epilepsy Associations with Mental Health Outcomes in the First Two Years after Moderate to Severe TBI: A TBI Model Systems Analysis
Purpose
Research suggests that there are reciprocal relationships between mental health (MH) disorders and epilepsy risk. However, MH relationships to post-traumatic epilepsy (PTE) have not been explored. Thus, the objective of this study was to assess associations between PTE and frequency of depression and/or anxiety in a cohort of individuals with moderate-to-severe TBI who received acute inpatient rehabilitation.
Methods
Multivariate regression models were developed using a recent (2010–2012) cohort (n = 867 unique participants) from the TBI Model Systems (TBIMS) National Database, a time frame during which self-reported seizures, depression [Patient Health Questionnaire (PHQ)-9], and anxiety [Generalized Anxiety Disorder (GAD-7)] follow-up measures were concurrently collected at year-1 and year-2 after injury.
Results
PTE did not significantly contribute to depression status in either the year-1 or year-2 cohort, nor did it contribute significantly to anxiety status in the year-1 cohort, after controlling for other known depression and anxiety predictors. However, those with PTE in year-2 had 3.34 times the odds (p = .002) of having clinically significant anxiety, even after accounting for other relevant predictors. In this model, participants who self-identified as Black were also more likely to report clinical symptoms of anxiety than those who identified as White. PTE was the only significant predictor of comorbid depression and anxiety at year-2 (Odds Ratio 2.71; p = 0.049).
Conclusions
Our data suggest that PTE is associated with MH outcomes 2 years after TBI, findings whose significance may reflect reciprocal, biological, psychological, and/or experiential factors contributing to and resulting from both PTE and MH status post-TBI. Future work should consider temporal and reciprocal relationships between PTE and MH as well as if/how treatment of each condition influences biosusceptibility to the other condition
Responsabilidad Social Universitaria: una mirada endógena
La Responsabilidad Social Universitaria (RSU) es una estrategia de gestión que reconoce el papel institucional protagónico de la universidad en la transformación educativa, en orden al fortalecimiento del compromiso social, ético y político de la educación superior. El objetivo del trabajo que se comparte consistió en "caracterizar el proceso de implementación de enfoques y prácticas de responsabilidad social universitaria en dos universidades latinoamericanas, mediante un análisis situacional que contribuya a actualizar el estado del arte de esta área del conocimiento en la región". Se planteó una investigación aplicada, de carácter social y descriptivo, con implementación de técnicas cuantitativas y cualitativas, sobre una muestra representativa de la población objeto de estudio. Los resultados señalan la necesidad de modificar las prácticas de RSU y trabajar en su efectiva puesta en práctica. Se propone una próxima investigación con el objetivo de analizar la percepción de actores externos sobre la RSU de la institución.University Social Responsibility (RSU) is a management strategy that recognizes the institutional leading role that university plays in the transformation of education, in order to strengthen the social, ethical, and political commitment of higher education. The aim of this work, which was shared, was to "characterize the implementation process of university social responsibility practices and approaches in two Latin American universities, through a situational analysis that contributes to update the state of the art in this area of knowledge in the region". An applied, social and descriptive research was proposed, with the
implementation of quantitative and qualitative techniques, on a representative sample of the population under study. Results indicate the need to modify RSU practices and to work on its effective implementation. A new research put forward with the objective of analyzing the perception that external actors have on the institution's RSU.Fil: Kent, Patricia. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Trucco, Gabriel. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Cifuentes Valenzuela, Araceli. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Sendín, María Elena. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Capart, Denisse. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Capart, Susana. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Domínguez, Rodrigo. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Echeverría, Virginia. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Pugh, Daniel. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Salazar, Salazar. Universidad Nacional de la Patagonia San Juan Bosco; Argentina.Fil: Soetbeer, Germán. Universidad Nacional de la Patagonia San Juan Bosco; Argentina
Protocols for conducting dolphin capture-release health assessment studies
Marine mammals, such as dolphins, can serve as key indicator species in coastal areas by reflecting the effects of natural and anthropogenic stressors. As such they are often considered sentinels of environmental and ecosystem health (Bossart 2006; Wells et al. 2004; Fair and Becker 2000). The bottlenose dolphin is an apex predator and a key component of many estuarine environments in the southeastern United States (Woodward-Clyde Consultants 1994; SCDNR 2005). Health assessments of dolphins are
especially critical in areas where populations are depleted, show signs of epidemic disease and/or high mortality and/or where habitat is being altered or impacted by human activities.
Recent assessments of environmental conditions in the Indian River Lagoon, Florida (IRL) and the estuarine waters surrounding Charleston, South Carolina (CHS) highlight
the need for studies of the health of local bottlenose dolphins. While the condition of southeastern estuaries was rated as fair in the National Coastal Condition Report (U.S.
EPA 2001), it was noted that the IRL was characterized by poorer than expected benthic communities, significant sediment toxicity and increased nutrient concentrations.
Similarly, portions of the CHS estuary have sediment concentrations of aliphatic aromatic hydrocarbons, select inorganic metals, and some persistent pesticides far in excess of reported bioeffect levels (Hyland et al. 1998). Long-term trends in water quality monitoring and recent scientific research suggest that waste load assimilation, non-point source runoff impacts, contaminated sediments, and toxic pollutants are key issues in the CHS estuary system. Several ‘hot spots’ with high levels of heavy metals and organic compounds have been identified (Van Dolah et al. 2004). High concentrations of anthropogenic trace metals, polychlorinated biphenyls (PCB’s) and pesticides have been found in the sediments of Charleston Harbor, as well as the Ashley and Cooper Rivers (Long et al. 1998). Two superfund sites are located within the CHS estuary and the key contaminants of concern associated with these sites are: polycyclic aromatic hydrocarbons (PAH), lead, chromium, copper, arsenic, zinc and dioxin.
Concerns related to the overall health of IRL dolphins and dermatologic disease observed in many dolphins in the area (Bossart et al. 2003) initiated an investigation of potential factors which may have impacted dolphin health. From May-August 2001, 35 bottlenose dolphins died in the IRL during an unusual mortality event (MMC 2003). Many of these dolphins were diagnosed with a variety of skin lesions including proliferative ulcerative dermatitis due to protozoa and fungi, dolphin pox and a vesicular dermatopathy of unknown etiology (Bossart et al. 2003). Multiple species from fish to dolphins in the IRL system have exhibited skin lesions of various known and unknown etiologies (Kane et al. 2000; Bossart et al. 2003; Reif et al. 2006). On-going photo-identification (photo-ID)
studies have documented skin diseases in IRL dolphins (Mazzoil et al. 2005). In addition, up to 70% of green sea turtles in the IRL exhibit fibropapillomas, with the highest rates of occurrence being seen in turtles from the southern IRL (Hirama 2001)
Hypoxia shapes the immune landscape in lung injury and promotes the persistence of inflammation
Hypoxemia is a defining feature of acute respiratory distress syndrome (ARDS), an often-fatal complication of pulmonary or systemic inflammation, yet the resulting tissue hypoxia, and its impact on immune responses, is often neglected. In the present study, we have shown that ARDS patients were hypoxemic and monocytopenic within the first 48 h of ventilation. Monocytopenia was also observed in mouse models of hypoxic acute lung injury, in which hypoxemia drove the suppression of type I interferon signaling in the bone marrow. This impaired monopoiesis resulted in reduced accumulation of monocyte-derived macrophages and enhanced neutrophil-mediated inflammation in the lung. Administration of colony-stimulating factor 1 in mice with hypoxic lung injury rescued the monocytopenia, altered the phenotype of circulating monocytes, increased monocyte-derived macrophages in the lung and limited injury. Thus, tissue hypoxia altered the dynamics of the immune response to the detriment of the host and interventions to address the aberrant response offer new therapeutic strategies for ARDS
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