328 research outputs found
The Yanks Are Striking: Kern County, the 1921 Oil Strike and the Discourse on Americanism
In the fall of 1921 oil workers of the San Joaquin Valley faced a post-war economic slump, wage cuts across the board and an increasingly hostile attitude of oil operators towards consultation with the federal government on labor relations. They voted to strike, and the next day eight thousand workers walked off the fields. Strikers crafted an image of “patriotic unionism,” underpinned by a faith in the federal government and the ideology of the American Legion. The strike did not end in gruesome class warfare like had been seen months earlier in the coal mines of West Virginia, but rather in ideological confusion and despair. The oil workers movement never fully embraced a class identity; instead it embraced the burgeoning conservative identity of Americanism. This effectively hobbled the growth of the movement. Upon the strike’s conclusion there was no mass pull to the left on the part of oil workers in the San Joaquin Valley, despite the fact that their movement’s design and identity had gotten them nowhere. On the contrary a portion of workers and supporters of the strike turned to the nativism of the Klan. Overall this project looks to complicate the narrative of “us vs. them” in labor history by analyzing workers’ identities, and also looks to contribute to the ever-evolving discourse on how historians should track American conservatism as a social force
Exploiting Soil-Management Strategies for Climate Mitigation in the European Union: Maximizing "Win-Win" Solutions across Policy Regimes
The Intergovernmental Panel on Climate Change (IPCC) has identified a number of soil-management strategies that can be implemented to reduce GHG emissions. However, before deciding which of these strategies are most appropriate in any given situation, i
The War against People: Adult education practice for critical democracy
The purpose of this article is to explore the role of adult education for critical democracy, in order to address the social suffering (Bourdieu, 1999) that
we encounter in our work as critical adult community educators. We explore
this through dialogue, as a process of education and research. Dialogue is the
moment where humans meet to reflect on their reality as they make and remake
it (Shor, Freire, 1987: 13). The purpose of dialogue is to transform social relations, in the learning environment and in our community of practice, a key way
of creating new knowledge. Also, we contend that dialogue is a process of joint
autoethnographic research that examines experience, in order to understand
cultural practices, (Ellis,
et al
, 2011). Further, congruent with our pedagogies,
autoethnography treats research as a political, socially-just and socially-conscious act (Adams and Holman Jones, 2008). This article developed out of dialogue that we have had for years, but which we formalised only recently. We
consider dialogue as a pivot, based on Freire’s contention that education is a
conversation rather than a curriculum (1972). Further, our dialogue is underpinned by reflexivity, particularly using ourselves in research and practice
(Etherington, 2004). Reflexivity remains in the domain of the academic if we
are not mindful that our purpose is to change the world, echoing Marx and
Engles’ thesis that:
The philosophers have only interpreted the world, in various ways; the point is,
however, to change it,.
(Thesis 11, 1845
Oral trimethoprim-sulphamethoxazole levels in stable HIV-infected children
Background. Effective treatment of Pneumocystis jiroveci pneumonia (PCP) requires therapeutic serum concentrations of 5 - 10 µg/ml trimethoprim (TMP); consequently intravenous trimethoprim-sulphamethoxazole (TMP-SMZ) is recommended therapy. However, oral therapy is desirable as the intravenous route is costly, time-consuming, more difficult to administer and carries a risk of needlestick injury.
Objective. To investigate whether therapeutic TMP levels for treatment of PCP can be attained with oral therapy in HIVinfected children.
Methods. A prospective dose-escalation study was undertaken of serum TMP levels attained following oral doses of TMP of 5 mg/kg, 10 mg/kg or 20 mg/kg in stable HIV-infected children. Children who received a 20 mg/kg dose were randomised to get a second dose (5 or 10 mg/kg TMP) at 6 hours. TMP levels were measured at baseline, peak (3 hours), and trough (6 hours) using liquid chromatography. An additional TMP level was taken at 9 hours in those who received a second TMP dose.
Results. Median (25th - 75th percentile) peak serum TMP levels following a 5 mg/kg, 10 mg/kg or 20 mg/kg oral loading dose were 0.93 (0.5 - 1.5) µg/ml, 1.94 (1.4 - 2.2) µg/ml and 7.68 (6.1- 7.8) µg/ml respectively. Peak TMP levels at 9 hours after a second TMP dose of 5 or 10 mg/kg were 6.98 (3.4 - 8.8) µg/ml and 9.25 (8.2 - 10.3) µg/ml respectively.
Conclusion. Therapeutic concentrations of TMP for treatment of P. jiroveci can be attained with an oral loading dose of 20 mg/kg and sustained with a second dose at 6 hours of either 5 mg or 10 mg/kg in stable HIV-infected children
Oral trimethoprim-sulphamethoxazole levels in stable HIV-infected children
Background. Effective treatment of Pneumocystis jiroveci pneumonia (PCP) requires therapeutic serum concentrations of 5 - 10 µg/ml trimethoprim (TMP); consequently intravenous trimethoprim-sulphamethoxazole (TMP-SMZ) is recommended therapy. However, oral therapy is desirable as the intravenous route is costly, time-consuming, more difficult to administer and carries a risk of needlestick injury. Objective. To investigate whether therapeutic TMP levels for treatment of PCP can be attained with oral therapy in HIVinfected children. Methods. A prospective dose-escalation study was undertaken of serum TMP levels attained following oral doses of TMP of 5 mg/kg, 10 mg/kg or 20 mg/kg in stable HIV-infected children. Children who received a 20 mg/kg dose were randomised to get a second dose (5 or 10 mg/kg TMP) at 6 hours. TMP levels were measured at baseline, peak (3 hours), and trough (6 hours) using liquid chromatography. An additional TMP level was taken at 9 hours in those who received a second TMP dose. Results. Median (25th - 75th percentile) peak serum TMP levels following a 5 mg/kg, 10 mg/kg or 20 mg/kg oral loading dose were 0.93 (0.5 - 1.5) µg/ml, 1.94 (1.4 - 2.2) µg/ml and 7.68 (6.1- 7.8) µg/ml respectively. Peak TMP levels at 9 hours after a second TMP dose of 5 or 10 mg/kg were 6.98 (3.4 - 8.8) µg/ml and 9.25 (8.2 - 10.3) µg/ml respectively. Conclusion. Therapeutic concentrations of TMP for treatment of P. jiroveci can be attained with an oral loading dose of 20 mg/kg and sustained with a second dose at 6 hours of either 5 mg or 10 mg/kg in stable HIV-infected children. No Abstract. South African Medical Journal Vol. 96(7) 2006: 627-62
A comparison of ambulatory perioperative times in hospitals and freestanding centers
The volume of surgical procedures performed in ambulatory surgical centers has increased rapidly
Vaginal microbicides for reducing the risk of sexual acquisition of HIV infection in women: systematic review and meta-analysis
BACKGROUND: Each year more than two million people are newly infected with HIV worldwide, a majority of them through unprotected vaginal sex. More than half of new infections in adults occur in women. Male condoms and male circumcision reduce the risk of HIV acquisition; but the uptake of these methods is out of the control of women. We therefore aimed to determine the effectiveness of vaginal microbicides (a potential female-controlled method) for prevention of sexual acquisition of HIV in women. METHODS: We conducted a comprehensive search of peer-reviewed and grey literature for publications of randomised controlled trials available by September 2012. We screened search outputs, selected studies, assessed risk of bias, and extracted data in duplicate; resolving differences by discussion and consensus. RESULTS: We identified 13 eligible trials that compared vaginal microbicides to placebo. These studies enrolled 35,905 sexually active HIV-negative women between 1996 and 2011; in Benin, Cameroon, Cote d'Ivoire, Ghana, Kenya, Malawi, Nigeria, South Africa, Tanzania, Uganda, Zambia, Zimbabwe, India, Thailand, and the United States of America. A small trial of 889 women found that tenofovir (a nucleotide reverse transcriptase inhibitor) significantly reduces the risk of HIV acquisition (risk ratio [RR] 0.63, 95% confidence intervals [CI] 0.43 to 0.93). Effectiveness data are not yet available from follow-up tenofovir trials being conducted in South Africa, Uganda, and Zimbabwe (1 trial) and multiple sites in South Africa (1 trial). We found no evidence of a significant effect for nonoxynol-9 (5 trials), cellulose sulphate (2 trials), SAVVY (2 trials), Carraguard (1 trial), PRO 2000 (2 trials), and BufferGel (1 trial) microbicides. The pooled RR for the effect of current experimental vaginal microbicides on HIV acquisition in women was 0.97, 95%CI 0.87 to 1.08. Although study results were homogeneous across the different drug classes (heterogeneity P=0.17, I2=27%), the overall intervention effect was not statistically significant. Nonoxynol-9 significantly increased the risk of having adverse genital lesions but no other microbicide led to significant increases in adverse events. CONCLUSIONS: There is not enough evidence at present to recommend vaginal microbicides for HIV prevention. Further high-quality research is needed to confirm the beneficial effects of tenofovir as well as continue the development and testing of new microbicides
Decadal migration phenology of a long-lived Arctic icon keeps pace with climate change
Animals migrate in response to seasonal environments, to reproduce, to benefit from resource pulses, or to avoid fluctuating hazards. Although climate change is predicted to modify migration, only a few studies to date have demonstrated phenological shifts in marine mammals. In the Arctic, marine mammals are considered among the most sensitive to ongoing climate change due to their narrow habitat preferences and long life spans. Longevity may prove an obstacle for species to evolutionarily respond. For species that exhibit high site fidelity and strong associations with migration routes, adjusting the timing of migration is one of the few recourses available to respond to a changing climate. Here, we demonstrate evidence of significant delays in the timing of narwhal autumn migrations with satellite tracking data spanning 21 y from the Canadian Arctic. Measures of migration phenology varied annually and were explained by sex and climate drivers associated with ice conditions, suggesting that narwhals are adopting strategic migration tactics. Male narwhals were found to lead the migration out of the summering areas, while females, potentially with dependent young, departed later. Narwhals are remaining longer in their summer areas at a rate of 10 d per decade, a similar rate to that observed for climate-driven sea ice loss across the region. The consequences of altered space use and timing have yet to be evaluated but will expose individuals to increasing natural changes and anthropogenic activities on the summering areas
Assessment of Acute and Chronic Pharmacological Effects on Energy Expenditure and Macronutrient Oxidation in Humans: Responses to Ephedrine
Evidence of active brown adipose tissue in human adults suggests that this may become a pharmacological target to induce negative energy balance. We have explored whole-body indirect calorimetry to detect the metabolic effects of thermogenic drugs through administration of ephedrine hydrochloride and have assessed ephedrine's merits as a comparator compound in the evaluation of novel thermogenic agents. Volunteers randomly given ephedrine hydrochloride 15 mg QID (n = 8) or placebo (n = 6) were studied at baseline and after 1-2 and 14-15 days of treatment. We demonstrate that overnight or 23-hour, 2% energy expenditure (EE) and 5% fat (FO) or CHO oxidation effects are detectable both acutely and over 14 days. Compared to placebo, ephedrine increased EE and FO rates overnight (EE 63 kJ day 2, EE 105 kJ, FO 190 kJ, day 14), but not over 23 h. We conclude that modest energy expenditure and fat oxidation responses to pharmacological interventions can be confidently detected by calorimetry in small groups. Ephedrine should provide reliable data against which to compare novel thermogenic compounds
- …