Showing papers by "University of Saint Mary published in 2004"
TL;DR: Placement of the sirolimus-eluting stent results in continued clinical improvement at 1 year after initial implantation, with significant reduction in clinical restenosis as defined by target-lesion revascularization.
Abstract: Background— This study evaluated a large group of patients enrolled in a double-blind randomized trial of the sirolimus-eluting stent to document whether the initial clinical improvement seen in previous smaller series is maintained out to 12 months and to study the potential treatment effect in patient subsets known to be at increased risk of restenosis. Methods and Results— A total of 1058 patients with de novo native coronary stenosis undergoing clinically indicated percutaneous coronary intervention were randomly assigned to sirolimus-eluting stent (533) or control bare stent (525). Procedural success and in-hospital outcomes were excellent and did not differ between the 2 groups. At 9 months, clinical restenosis, defined as target-lesion revascularization, was 4.1% in the sirolimus limb versus 16.6% in the control limb (P<0.001). At 12 months, the absolute difference in target-lesion revascularization continued to increase and was 4.9% versus 20% (P<0.001). There were no differences in death or myoca...
548 citations
TL;DR: The Correlates of War alliance data have greatly influenced quantitative studies of conflict, providing an important variable in the study of international conflict and cooperation as mentioned in this paper, which is a companion to the release of Version 3.0 of the CORRELATE OF WAR Formal Interstate Alliance Dataset, 1816-2000.
Abstract: This article serves as a companion to the release of Version 3.0 of the Correlates of War Formal Interstate Alliance Dataset, 1816–2000. First released in 1966, the Correlates of War alliance data have greatly influenced quantitative studies of conflict, providing an important variable in the study of international conflict and cooperation. The article begins by describing the historical development and the major characteristics of the alliance dataset. The second section then discusses the procedures used to both identify and code each alliance in this revised and extended version of the data, and this is followed by a description of several important changes made to the original coding rules in order to develop this dataset, with the most notable of these changes being a more determined reliance on treaty texts rather than historical accounts for identification of alliances and alliance types. To show the effects of the revised coding decisions and the enlarged temporal domain, the final section of the ...
438 citations
TL;DR: This pilot randomized controlled trial provides preliminary evidence that low‐level mechanical stimuli represent a noninvasive, non‐pharmacological treatment of low BMD in children with disabling conditions.
Abstract: The osteogenic potential of short durations of low-level mechanical stimuli was examined in children with disabling conditions. The mean change in tibia vTBMD was 6.3% in the intervention group compared with 11.9% in the control group. This pilot randomized controlled trial provides preliminary evidence that low-level mechanical stimuli represent a noninvasive, non-pharmacological treatment of low BMD in children with disabling conditions. Introduction: Recent animal studies have demonstrated the anabolic potential of low-magnitude, high-frequency mechanical stimuli to the trabecular bone of weight-bearing regions of the skeleton. The main aim of this prospective, double-blind, randomized placebo-controlled pilot trial (RCT) was to examine whether these signals could effectively increase tibial and spinal volumetric trabecular BMD (vTBMD; mg/ml) in children with disabling conditions. Materials and Methods: Twenty pre-or postpubertal disabled, ambulant, children (14 males, 6 females; mean age, 9.1 4.3 years; range, 4 -19 years) were randomized to standing on active (n 10; 0.3g, 90 Hz) or placebo (n 10) devices for 10 minutes/day, 5 days/week for 6 months. The primary outcomes of the trial were proximal tibial and spinal (L2) vTBMD (mg/ml), measured using 3-D QCT. Posthoc analyses were performed to determine whether the treatment had an effect on diaphyseal cortical bone and muscle parameters. Results and Conclusions: Compliance was 44% (4.4 minutes per day), as determined by mean time on treatment (567.9 minutes) compared with expected time on treatment over the 6 months (1300 minutes). After 6 months, the mean change in proximal tibial vTBMD in children who stood on active devices was 6.27 mg/ml (6.3%); in children who stood on placebo devices, vTBMD decreased by 9.45 mg/ml (11.9%). Thus, the net benefit of treatment was 15.72 mg/ml (17.7%; p 0.0033). In the spine, the net benefit of treatment, compared with placebo, was 6.72 mg/ml, (p 0.14). Diaphyseal bone and muscle parameters did not show a response to treatment. The results of this pilot RCT have shown for the first time that low-magnitude, high-frequency mechanical stimuli are anabolic to trabecular bone in children, possibly by providing a surrogate for suppressed muscular activity in the disabled. Over the course of a longer treatment period, harnessing bone's sensitivity to these stimuli may provide a non-pharmacological treatment for bone fragility in children. J Bone Miner Res 2004;19:360 -369. Published online on January 27, 2004; doi: 10.1359/JBMR.040129
429 citations
TL;DR: Ebola virus RNA levels (virus load) in PBMC specimens were found to be much higher in infected patients who died than patients who survived the disease, and blood levels of nitric oxide were muchHigher in fatal cases.
Abstract: Peripheral blood samples obtained from patients during an outbreak of Ebola virus (Sudan species) disease in Uganda in 2000 were used to phenotype peripheral blood mononuclear cells (PBMC), quantitate gene expression, measure antigenemia, and determine nitric oxide levels. It was determined that as the severity of disease increased in infected patients, there was a corresponding increase in antigenemia and leukopenia. Blood smears revealed thrombocytopenia, a left shift in neutrophils (in some cases degenerating), and atypical lymphocytes. Infected patients who died had reduced numbers of T cells, CD8 + T cells, and activated (HLA-DR + ) CD8 + T cells, while the opposite was noted for patients who survived the disease. Expression levels of cytokines, Fas antigen, and Fas ligand (TaqMan quantitation) in PBMC from infected patients were not significantly different from those in uninfected patients (treated in the same isolation wards), nor was there a significant increase in expression compared to healthy volunteers (United States). This unresponsive state of PBMC from infected patients despite high levels of circulating antigen and virus replication suggests that some form of immunosuppression had developed. Ebola virus RNA levels (virus load) in PBMC specimens were found to be much higher in infected patients who died than patients who survived the disease. Similarly, blood levels of nitric oxide were much higher in fatal cases (increasing with disease severity), and extremely elevated levels (≥150 μM) would have negatively affected vascular tone and contributed to virus-induced shock.
272 citations
TL;DR: This paper found that stocks with a greater deviation between ultimate control and ownership have a larger information asymmetry component of their bid-ask spread and a wider quoted bidask spread, consistent with the notion that the ultimate owners of these stocks may have a selfish agenda.
Abstract: Prior studies, such as Claessens, Djankov, Fan and Lang (2002), suggest that separation between ultimate control and ownership decreases firm value (due to the entrenchment effects of large shareholding). Using a sample of Canadian firms, we find that stocks with a greater deviation between ultimate control and ownership have a larger information asymmetry component of their bid-ask spread and a wider quoted bid-ask spread. Our results are consistent with the notion that the ultimate owners of these stocks may have a selfish agenda. To increase the probability of it being implemented, the firm may also have poor information disclosure, resulting in an illiquid stock.
223 citations
153 citations
TL;DR: Results suggest that an interview may be useful in identifying specific behavioral characteristics deemed important for success in dental training, and the Dental Aptitude Test is a good predictor of preclinical academic success, with prediction declining when clinical components of the program are introduced into the criterion.
Abstract: The task of selecting the best dental applicants out of an extremely competitive applicant pool is a problem faced annually by dental faculties. This study examined the validity of both cognitive and noncognitive factors used for selection to Canadian dental schools. Interest in personality measurement and the prediction offered by personality measures has escalated and may be applied to the selection of dental candidates. Therefore, the study also assessed whether the addition of a personality measure would increase the validity of predicting performance beyond that achieved by an interview and the Dental Aptitude Test. Results suggest that an interview may be useful in identifying specific behavioral characteristics deemed important for success in dental training. Consistent with previous research, results show that the Dental Aptitude Test is a good predictor of preclinical academic success, with prediction declining when clinical components of the program are introduced into the criterion. Results from the personality measure indicated that Openness to Experience was significantly related to aspects of clinical education, although, contrary to expectations, this relationship was negative. A facet of Openness, Ideas, together with Positive Emotions, a facet of Extroversion, improved prediction of performance in clinical studies beyond that provided by the Dental Aptitude Test and the Interview. Implications of the findings are discussed, and recommendations regarding the admission process to Canadian dental programs are offered.
91 citations
TL;DR: The authors deconstructed the discourse of work-family conflict as a "work-family" conflict, and pointed out that such a view serves to privilege the dominant themes of use-time and speed.
Abstract: On the surface, the modern workplace and home life appear to stand in sharp contrast to one another. The workplace seems to epitomize the modern concern with bounded time and the necessity of effective ‘use time’ (e.g., efficiency, effort, organizational commitment, speed‐up). Home life, on the other hand, is characterized by idealized images of emotionality and relief from the pressures of work. Yet numerous reported experiences of working people seem to belie this supposed duality. For many, home life is experienced as an appendage of the workplace, with its demands on time‐effort balance. Nonetheless, we continue to act as if there are two separate spheres of life that can ultimately be balanced and reconciled. This has been reinforced over the years by a growing discourse of work‐family conflict. Deconstruction of the discourse suggests that far from unraveling the ‘problem’ its characterization as a ‘work‐family’ conflict serves to privilege the dominant themes of use‐time and speed.
64 citations
TL;DR: The authors investigate the determinants, costs and benefits of corporate affiliation to pyramidal holdings and find that there is a mismatch between cash flow rights and voting rights in firms affiliated to pyramid holdings, and that corporate policies reflect cash distribution preferences of the ultimate owners.
Abstract: We investigate the determinants, costs and benefits of corporate affiliation to pyramidal holdings. We find that there is a mismatch between cash flow rights and voting rights in firms affiliated to pyramidal holdings, and that corporate policies reflect cash distribution preferences of the ultimate owners. We also find a permanent depressive effect of pyramidal ownership on corporate value. This finding is consistent with the hypothesis that the layers of equity holdings within the pyramidal holding contribute to form an impervious veil behind which ultimate owners engage in expropriating behavior. Our investigation of affiliated firms suggests that ultimate owners, mostly families, are adept at combining their cash flow rights, voting power, and distance from affiliates in a way that minimizes sensitivity to negative events and maximizes sensitivity to positive events.
57 citations
TL;DR: Cause is a main predictor of clinical and radiological severity at presentation and outcome in patients with pontine hemorrhage and primary hemorrhage associated with prior hypertension is much more devastating.
Abstract: Background: Pontine hemorrhages frequently lead to death or severe disability. Predictors of early mortality have been previously described but little is known about the factors inf
50 citations
TL;DR: The combination of chimaeric proteins and protein microarrays will greatly facilitate the screening of a large number of individuals for a particular structural epitope and help to further the understanding of how proteins are recognised by the adaptive immune system.
TL;DR: BALF results suggest that at low spore doses, it is spore sequestered factors common to both strains not strain dependent toxins that are contributing to lung disease onset.
TL;DR: The cases of two patients with new-onset seizures are described to illustrate the proposition that de novo malignant gliomas can originate as non-enhancing tumors and rapidly progress to a pattern of ring enhancement characteristic of a glioblastoma.
Abstract: Malignant gliomas arise from two distinct pathways, as de novo lesions or from secondary transformation from low-grade lesions. Herein, we describe the cases of two patients to illustrate the proposition that de novo malignant gliomas can originate as non-enhancing tumors and rapidly progress to a pattern of ring enhancement characteristic of a glioblastoma. Both patients presented with new-onset seizures (simple partial and generalized). Their neurological examinations were unremarkable. Initial MRI evaluations revealed a right precentral gyrus and right medial temporal lobe lesions in each case, respectively. These lesions demonstrated increased T2 signal changes without contrast enhancement. The biopsy of the right frontal lesion in the first patient was consistent with an anaplastic astrocytoma; the second patient was followed expectantly. Repeat MRI for both patients within 17 weeks disclosed ring-enhancing lesions, consistent with an unusually rapid evolution to glioblastoma multiforme (GBM). Subsequent resection of the right medial temporal lesion in the second patient revealed a GBM. Neither tumor displayed abnormal overexpression of P53 by immunohistochemistry. Early MRI of de novo glioblastomas may demonstrate a non-enhancing tumor suggestive of a low-grade lesion. These tumors can rapidly evolve into ring-enhancing lesions more consistent with the traditional imaging findings.
TL;DR: The downward movement of blood from the cranial subdural compartment under the influence of gravity is the most appropriate explanation for SSH following craniotomy.
TL;DR: The tibial speed of sound was measured in 91 healthy singleton infants between 31 and 42 weeks of gestation and 12 sick preterm infants to allow radiation-free assessment of metabolic bone disease of prematurity.
Abstract: The tibial speed of sound (SOS) was measured in 91 healthy singleton infants between 31 and 42 weeks of gestation and 12 sick preterm infants. In healthy infants, the tibial SOS was associated with corrected gestational age (r = 0.40, p < 0.001) but not birth weight. The median tibial SOS in 12 sick preterm infants (2,772, range 2,566-2,934 m/s), whose corrected gestational age was between 31 and 42 weeks, was lower (p < 0.001) than that of 69 healthy gestation-matched healthy infants (3,100, range 2,870-3,381 m/s). Tibial SOS measurements may allow radiation-free assessment of metabolic bone disease of prematurity.
TL;DR: In this article, the reaction of trimethylaluminum with 2,4,6-triphenylbenzoic acid and the isoelectronic fluoren-9-one phenylhydrazone results in the formation of the dialkylaluminum complexes [(CH3)2Al{μ-O2CPh(Ph3)]2 (4) and [Me2AlN(C6H5)NC13H8]2 (5).
TL;DR: Studies of double-brooded species are ideal for examining factors other than mate quality that might influence rates of extra-pair paternity, and an eastern population of Song Sparrows was determined.
Abstract: We determined if extra-pair paternity existed in an eastern population of Song Sparrows (Melospiza melodia melodia), and compared the frequency of extra-pair paternity in first and second broods. Over both broods, a total of 10.5% young were of extra-pair origin, but this frequency is considered conservative as it was based on only three loci. Forty percent of females had extra-pair young in at least one of their two broods. One of five females changed from genetic monogamy to genetic promiscuity between broods, despite remaining paired with the same male. Studies of double-brooded species are ideal for examining factors other than mate quality that might influence rates of extra-pair paternity.
TL;DR: Catches of upstream migrant lampreys in the Fox River during the years 1994–1999 were inconsistent with a quasi-cyclical pattern suggested by an earlier analysis of Fox River data for 1979–1993.
Abstract: We synthesize findings from several field and laboratory studies of the silver lampreys (Ichthyomyzon unicuspis). Catches of upstream migrant lampreys in the Fox River during the years 1994–1999 were inconsistent with a quasi-cyclical pattern suggested by an earlier analysis of Fox River data for 1979–1993. Peak catches occurred from mid-April to early May, and mean date of catch did not differ between males and females, but there was a tendency for larger lampreys to be caught earlier in the season. Females tended to be larger than males, both in samples from the Fox River and in a sample of parasitic-phase lampreys removed from paddlefish (Polyodon spathula) in the Wisconsin River. Small silver lampreys from the Wisconsin River attached readily to common carp (Cyprinus carpio) in captivity, but they seemed to have difficulty forming puncture wounds on carp and did not exhibit appreciable growth. However, larger lampreys removed from carp in the field had created wounds with free-flowing blood. ...
Posted Content•
TL;DR: A review of the literature on strategy explores the study and practice of strategy as a discourse, engulfed by its own truth effects as discussed by the authors, and demonstrates the value of a postmodern radical reflexive account through the application of Baudrillard's (1983, 1988, 1991, 1994) simulation and simulacra.
Abstract: Over the past three decades strategic management has become a crucial aspect of business education and practice. At the core of strategic management - linking technique to worldview - is modelling (e.g. value chain, SWOT analysis) whereby the complex elements of strategic thinking are simplified. This accounts in large part for the apparent popularity of strategic management as complex interrelationships are pursued through relatively simple models. Yet has the field of strategic management realized the third order of simulacra? Is strategic management a model of simulation whereby reality has been replaced by hyperreality? A review of the extant literature on strategy explores the study and practice of strategy as a discourse, engulfed by its own truth effects. An examination of the concepts of reflexivity demonstrates the value of a postmodern radical reflexive account through the application of Baudrillard's (1983, 1988, 1991, 1994) simulation and simulacra. It is through the development of a radical reflexive discourse of strategy as simulacra, this paper critically examines the study and practice of strategy and the lessons we can take from this perspective.
TL;DR: In this article, a teaching and learning technique that uses the power of everyday body language and proxemics to illustrate forms of social inequality is presented, and the active learning exercises assist students to feel the fact that the making and maintaining of power relations is an intimate and visceral matter.
Abstract: THIS PAPER REPORTS on a teaching and learning technique that uses the power of everyday body language and proxemics to illustrate forms of social inequality. More significantly, the active learning exercises assist students to feel the fact that the making and maintaining of power relations is an intimate and visceral matter. In keeping with classroom approaches that attempt to bring sociology to life in unconventional ways (Bailey 1993; Mayer 1986; Schmid 1993) and to acknowledge an increasingly diverse student population (Hartung 1991), the exercises provide opportunities for students to actively engage their bodies in the subject matter of sociology. A number of approaches have been developed to facilitate the teaching of social inequality (for a summary see Davis 1992). Simulation games and role-play exercises create firsthand experiences of inequality to illustrate the structural barriers that maintain social stratification (Bell and Bradburn 1996; Brezina 1996). These approaches
TL;DR: This article outlines a selective list of Internet sites and online resources that serve as a guide for further inquiry into spirituality and health care concepts.
Abstract: Medicine and spirituality have had an enduring, complementary relationship from the earliest days of health care. Recent publications, Web site developments, and education programs underscore the continuing enthusiasm for the study of the relationship between spirituality and patient care in the health care community. This article outlines a selective list of Internet sites and online resources and serves as a guide for further inquiry into spirituality and health care concepts.
TL;DR: In the Oaxacan metamorphic suite of the ~1 Ga northern Oaxaca Complex, a dike-like intrusion up to 4 m thick which cut across the surrounding high-grade granulite-and upperamphibolite facies metamorphoric rocks is a distinctive feature as mentioned in this paper.
Abstract: Intrusive calcareous bodies, marbles and calc-silicate rocks, are a distinctive feature of the highgrade metamorphic suites of the ~1 Ga northern Oaxacan Complex They typically form dike-like intrusions up to 4 m thick which cut across the surrounding high-grade granulite- and upperamphibolite facies metamorphic rocks Various protoliths are possible for these carbonate bodies: (1) sediments including evaporites; (2) metasomatic skarns; and (3) carbonatites An evaporitic protolith is supported by the predominance of scapolite, low abundances of incompatible trace elements (including Nb and rare-earth elements) relative to carbonatites, and the presence of a sharp contact with host rocks without a significant contact metamorphic aureole or fenitization It is inferred that limestones and related rocks were remobilized under granulite-facies conditions and intruded into the host rocks The widespread distribution of such evaporites in the Oaxacan Complex is consistent with deposition after the worldwide ~
TL;DR: Women with urodynamic stress incontinence (USI) have lower opening and closing detrusor pressures than women without USI, and whether age influences cure is investigated.
Abstract: Objective
Women with urodynamic stress incontinence (USI) have lower opening and closing detrusor pressures than women without USI This study was undertaken to determine whether a change occurs in opening and closing detrusor pressures after colposuspension, whether cure is associated with change, and whether age influences cure
Design
Retrospective cohort study
Setting
Tertiary referral urogynaecology department
Participants
Consecutive women who had undergone colposuspension between 1998–2000 and 1993–1995
Methods
Pre- and post-operative urodynamic records were reviewed Eighty eight women were included Objective cure was defined as an absence of USI and subjective cure as an absence of symptoms of stress incontinence
Results
Mean age was 524 (110) years Sixty nine percent (61/88) were objectively cured and 48% (42/88) were subjectively cured Postoperatively, opening detrusor pressure increased (P = 00001) and maximum flow rate decreased (P= 00464) in women objectively cured but these parameters did not change in the not cured group (P > 005) Women had a 45 times higher chance of failed surgery if post-op opening detrusor pressure was ≤20 cmH2O (P = 0035) Opening detrusor pressure declined with age (P < 0001) and women who were objectively cured were on average almost 7 years younger (P = 00330)
Conclusions
Increase in opening detrusor pressure occurs only in women who are cured following colposuspension Change in opening detrusor pressure is dependent on age and objective cure is higher in younger women The effects of ageing on sub- urethral supports might explain why surgery is more likely to fail in older women Neurourol Urodynam 23:10–15, 2004 © 2003 Wiley-Liss, Inc
TL;DR: In today's intensive care units, what is also needed is the education and development of the skills that enable nurses the ability to enter into a relationship with the patients and families that touch the spirit, and provide another dimension to healing.
Abstract: The focus of critical care education is usually on the development of knowledge and skills needed to manage care for the critically ill patient. In today's intensive care units, what is also needed is the education and development of the skills that enable nurses the ability to enter into a relationship with the patients and families that touch the spirit, and provide another dimension to healing.
Posted Content•
TL;DR: In this paper, the authors examine how the investment of financially constrained firms varies with their level of internal funds and show that the resulting relationship between internal fund and investment is U-shaped.
Abstract: This Paper examines how the investment of financially constrained firms varies with their level of internal funds. We develop a theoretical model of optimal investment under financial constraints. Our model endogenizes the costs of external funds and allows for negative levels of internal funds. We show that the resulting relationship between internal funds and investment is U-shaped. In particular, when a firm’s internal funds are negative and sufficiently low, a further decrease leads to an increase in investment. This effect is driven by the investor’s participation constraint: when part of any loan must be used to close a financing gap, the investor will provide funds only if the firm invests at a scale large enough to generate the revenue that enables the firm to repay. We test our theory using a dataset with close to 100,000 firm-year observations. The data strongly support our predictions. Among other results, we find a negative relationship between measures of internal funds and investment for a substantial share of financially constrained firms. Our results also help to explain some contrasting findings in the empirical investment literature.
Journal Article•
TL;DR: This AANA Journal course discusses the American College of Cardiology (ACC) and American Heart Association (AHA) guideline on perioperative cardiovascular evaluation for noncardiac surgery, which delineates methods to objectively categorize cardiovascular risk and use data from the cardiology consultation to refine anesthetic management.
Abstract: This AANA Journal course discusses the American College of Cardiology (ACC) and American Heart Association (AHA) guideline on perioperative cardiovascular evaluation for noncardiac surgery. The intent of the ACC/AHA guideline is to assist clinicians in clinical decision making by describing a range of generally acceptable approaches for the diagnosis, management, and prevention of cardiac diseases. Optimizing the anesthetic management of the cardiac patient undergoing noncardiac surgery is becoming increasingly important: as the percentage of Americans older than 65 years continues to grow, so does the prevalence of cardiac disease in this population. Simply accepting a preoperative cardiology clearance for the cardiac patient undergoing noncardiac surgery provides little information that can be used for risk assessment and management of anesthesia. While national practice patterns vary significantly, there is an important need to standardize cost-effective preoperative cardiac evaluation. By using evidence-based studies, the ACC/AHA guideline delineates methods to objectively categorize cardiovascular risk and use data from the cardiology consultation to refine anesthetic management. Use of the guideline can lead to more efficient evaluation of the noncardiac patient with cardiac disease, which can decrease morbidity, mortality, and cost.
Proceedings Article•
01 Jan 2004TL;DR: In this article, a new multi-objective formulation, named normalized weighting method, for the connections between distribution transformers and a primary feeder problem is presented, which can provide a set of flexible solutions by following the intention of decision makers.
Abstract: A new multi-objective formulation, named normalized weighting method, for the connections between distribution transformers and a primary feeder problem is presented. Six important objectives include power balance, feeder loss, voltage deviation, LCO current, zero and negative unbalance factor are all considered in this problem. These six objectives are of equal important to electric utility companies, but they are somewhat non-commensurable with each other. In view of this, a normalized weighting method for the multi-objective problem is proposed. It can provide a set of flexible solutions by following the intention of decision makers. To increase the realism, the load and operating constraints of the system are all considered. Comparative studies on actual Tai-power systems are given to demonstrate the effectiveness of the phase load balancing and the improvement of operation efficiency for the proposed method.
TL;DR: The author describes how a nurse's actions can make a positive difference in one people's life, and in one person's death.
Abstract: Nurses are often involved in patient care at the patient's end of life. The author describes how a nurse's actions can make a positive difference in one person's life, and in one person's death. Using all of the skills and gifts that nurses have to preserve life is a privilege and a challenge; using all of the skills and gifts nurses have to provide a respectful, dignified, peaceful, and even intimate death, is an equal privilege and challenge.
TL;DR: The title compound, C(10)H(12)O(6)S, has been obtained as dark-yellow chunk-shaped crystals, together with the expected thin white needles, and can be regarded as parallel sheets of molecules.
Abstract: The title compound, C10H12O6S, has been obtained as dark-yellow chunk-shaped crystals, together with the expected thin white needles. The structures of the two phases are identical. Two independent molecules compose the asymmetric unit: one molecule is totally planar, whereas a methyl group of the second molecule points out of the plane. Each molecule participates in several intra- and intermolecular hydrogen bonds and short contacts. The overall structure can be regarded as parallel sheets of molecules. Within a sheet, molecules are connected to one another in an infinite network via numerous short intermolecular contacts. Sheets are connected via hydrogen bonds and short contacts, in particular involving the methyl groups.