167 research outputs found
Fixed Bed Adsorption Of Methylene Blue By Using Palm Oil Mill Effluent Waste Activated Sludge.
The waste activated sludge (WAS) discharged during the aerobic treatment of palm oil mill effluent (POME) was used to produce a low cost adsorbent for the removal of methylene blue (MB) from aqueous solution
Empirical analysis of the relationship between size, ownership and productivity of farms in a watershed area in Madhya Pradesh
This study examines the land size-productivity relationship and profitability among owner operated and share cropper operated farms growing soybean during the 1999 rainy season in three villages of Vidisha district of Madhya Pradesh. The land size-productivity relationship has been found inverse both for owner operated farms (-0.27) and share cropper operated farms (-0.30). The productivity of owner operated farms is marginally higher at 0.72 t ha-1 compared to 0.68 t ha-1 in share cropper operated farms, among ICRISAT trial farmers the yield is higher at 1.1 t ha-1. The advantage profit per hectare is also higher at Rs. 2045 per hectare in comparison to Rs. 1773 in share cropper operated farms. The exploitative nature of the share cropping contracts (20:80 ration and 33:66 ratio) is documented. The policy implications are analysed, and intervention strategies are recommended to the stakeholders to facilitate equitable development among farmers and share croppers
An Empirical Analysis of the Relationship between Land Size, Ownership, and Soybean Productivity - New Evidence from the Semi-Arid Tropical Region in Madhya Pradesh, India
The intervention of the International Crops Research Institute for the Semi-Arid Tropics
(ICRISAT) at the benchmark site in Madhya Pradesh, India is part of a larger project –
“Improving Management of Natural Resources for Sustainable Rainfed Agriculture”
funded by the Asian Development Bank (ADB). The main aim of the project is to
increase the productivity and sustainability of the medium and high water-holding
capacity soils in the intermediate rainfall ecoregions in India, Vietnam, and Thailand.
This study examines the relationship between land size and various variables including
the soybean productivity relationship among owner-operated and share cropper-operated
farms. Primary data was collected using an interview schedule from the villages of Jaoti,
Kundhankhedi, Kherkhedi, and Lalatora in Vidisha district, Madhya Pradesh for the 1999
rainy season crop. The productivity of evaluated owner-operated farms is marginally
higher at 0.72 t ha-1 compared to 0.68 t ha-1 in case of share cropped farms. The
productivity of evaluated trial farms in Lalatora micro-watershed which is used as a
demonstration micro-watershed for evaluating improved management practice has been
higher at 1.1 t ha-1. The inverse-relationship between land size and productivity is found
for both owner-operated (r = 0.27) and share cropper-operated farms (r = 0.30). The
average profit is higher among owner-operated farms at Rs. 2045 ha-1 compared to Rs.
1773 ha-1 among share cropped farms. The profitability for the landlords and share
croppers is documented and evidence is presented on the exploitative nature of the
emerging 20:80 crop sharing contract. The low productivity has been due to waterlogging
which occurred due to heavy rains during the sowing period
Comparison of ESSDAI and ClinESSDAI in potential optimization of trial outcomes in primary Sjögren’s syndrome: examination of data from the UK Primary Sjögren’s Syndrome Registry
OBJECTIVES: To assess the use of the Clinical EULAR Sjögren’s Syndrome Disease Activity Index (ClinESSDAI), a version of the ESSDAI without the biological domain, for assessing potential eligibility and outcomes for clinical trials in patients with primary Sjögren’s syndrome (pSS), according to the new ACR-EULAR classification criteria, from the UK Primary Sjögren’s Syndrome Registry (UKPSSR). METHODS: A total of 665 patients from the UKPSSR cohort were analysed at their time of inclusion in the registry. ESSDAI and ClinESSDAI were calculated for each patient. RESULTS: For different disease activity index cut-off values, more potentially eligible participants were found when ClinESSDAI was used than with ESSDAI. The distribution of patients according to defined disease activity levels did not differ statistically (chi2 p = 0.57) between ESSDAI and ClinESSDAI for moderate disease activity (score ≥5 and <14; ESSDAI 36.4%; ClinESSDA 36.5%) or high disease activity (score ≥14; ESSDAI 5.4%; ClinESSDAI 6.8%). We did not find significant differences between the indexes in terms of activity levels for individual domains, with the exception of the articular domain. We found a good level of agreement between both indexes, and a positive correlation between lymphadenopathy and glandular domains with the use of either index and with different cut-off values. With the use of ClinESSDAI, the minimal clinically important improvement value was more often achievable with a one grade improvement of a single domain than with ESSDAI. We observed similar results when using the new ACR-EULAR classification criteria or the previously used American-European Consensus Group (AECG) classification criteria for pSS. CONCLUSIONS: In the UKPSSR population, the use of ClinESSDAI instead of ESSDAI did not lead to significant changes in score distribution, potential eligibility or outcome measurement in trials, or in routine care when immunological tests are not available. These results need to be confirmed in other cohorts and with longitudinal data
Physical activity but not sedentary activity is reduced in primary Sjögren’s syndrome
The aim of the study was to evaluate the levels of physical activity in individuals with primary Sjögren’s syndrome (PSS) and its relationship to the clinical features of PSS. To this cross-sectional study, self-reported levels of physical activity from 273 PSS patients were measured using the International Physical Activity Questionnaire-short form (IPAQ-SF) and were compared with healthy controls matched for age, sex and body mass index. Fatigue and other clinical aspects of PSS including disease status, dryness, daytime sleepiness, dysautonomia, anxiety and depression were assessed using validated tools. Individuals with PSS had significantly reduced levels of physical activity [median (interquartile range, IQR) 1572 (594–3158) versus 3708 (1732–8255) metabolic equivalent of task (MET) × min/week, p < 0.001], but similar levels of sedentary activity [median (IQR) min 300 (135–375) versus 343 (223–433) (MET) × min/week, p = 0.532] compared to healthy individuals. Differences in physical activity between PSS and controls increased at moderate [median (IQR) 0 (0–480) versus 1560 (570–3900) MET × min/week, p < 0.001] and vigorous intensities [median (IQR) 0 (0–480) versus 480 (0–1920) MET × min/week, p < 0.001]. Correlation analysis revealed a significant association between physical activity and fatigue, orthostatic intolerance, depressive symptoms and quality of life. Sedentary activity did not correlate with fatigue. Stepwise linear regression analysis identified symptoms of depression and daytime sleepiness as independent predictors of levels of physical activity. Physical activity is reduced in people with PSS and is associated with symptoms of depression and daytime sleepiness. Sedentary activity is not increased in PSS. Clinical care teams should explore the clinical utility of targeting low levels of physical activity in PSS
Microfluidic analysis techniques for safety assessment of pharmaceutical nano- and microsystems
This chapter reviews the evolution of microfabrication methods and materials, applicable to manufacturing of micro total analysis systems (or lab‐on‐a‐chip), from a general perspective. It discusses the possibilities and limitations associated with microfluidic cell culturing, or so called organ‐on‐a‐chip technology, together with selected examples of their exploitation to characterization of pharmaceutical nano‐ and microsystems. Materials selection plays a pivotal role in terms of ensuring the cell adhesion and viability as well as defining the prevailing culture conditions inside the microfluidic channels. The chapter focuses on the hepatic safety assessment of nanoparticles and gives an overview of the development of microfluidic immobilized enzyme reactors that could facilitate examination of the hepatic effects of nanomedicines under physiologically relevant conditions. It also provides an overview of the future prospects regarding system‐level integration possibilities facilitated by microfabrication of miniaturized separation and sample preparation systems as integral parts of microfluidic in vitro models.Non peer reviewe
Molecular Characteristics of Extended-Spectrum Beta-Lactamases and qnr Determinants in Enterobacter Species from Japan
The incidence of extended-spectrum β-lactamases (ESBLs) has been increasing worldwide, but screening criteria for detection of ESBLs are not standardized for AmpC-producing Enterobacteriaceae such as Enterobacter species. In this study, we investigated the prevalence of ESBLs and/or AmpC β-lactamases in Japanese clinical isolates of Enterobacter spp. and the association of plasmid-mediated quinolone resistance (PMQR) determinants with ESBL producers. A total of 364 clinical isolates of Enterobacter spp. collected throughout Japan between November 2009 and January 2010 were studied. ESBL-producing strains were assessed by the CLSI confirmatory test and the boronic acid disk test. PCR and sequencing were performed to detect CTX-M, TEM, and SHV type ESBLs and PMQR determinants. For ESBL-producing Enterobacter spp., pulsed-field gel electrophoresis (PFGE) was performed using XbaI restriction enzyme. Of the 364 isolates, 22 (6.0%) were ESBL producers. Seven isolates of Enterobacter cloacae produced CTX-M-3, followed by two isolates producing SHV-12. Two isolates of Enterobacter aerogenes produced CTX-M-2. Of the 22 ESBL producers, 21 had the AmpC enzyme, and six met the criteria for ESBL production in the boronic acid test. We found a significant association of qnrS with CTX-M-3-producing E. cloacae. The 11 ESBL-producing Enterobacter spp. possessing blaCTX-M, blaSHV, or blaTEM were divided into six unique PFGE types. This is the first report about the prevalence of qnr determinants among ESBL-producing Enterobacter spp. from Japan. Our results suggest that ESBL-producing Enterobacter spp. with qnr determinants are spreading in Japan
In vivo PET imaging of the neuroinflammatory response in rat spinal cord injury using the TSPO tracer [F-18]GE-180 and effect of docosahexaenoic acid
Centre for Trauma Sciences, funded by the Barts & The London Charity, GE Healthcare Ltd, the
Experimental Medicine Awards from the Blizard Institute and the Imaging Centre at the Barts Cancer Institute
Sputum Culture Conversion With Moxifloxacin-Containing Regimens in the Treatment of Patients With Newly Diagnosed Sputum-Positive Pulmonary Tuberculosis in South India
Abundance of the Quorum-Sensing Factor Ax21 in Four Strains of Stenotrophomonas maltophilia Correlates with Mortality Rate in a New Zebrafish Model of Infection
Stenotrophomonas maltophilia is a Gram-negative pathogen with emerging nosocomial incidence. Little is known about its pathogenesis and the genomic diversity exhibited by clinical isolates complicates the study of pathogenicity and virulence factors. Here, we present a strategy to identify such factors in new clinical isolates of S. maltophilia, incorporating an adult-zebrafish model of S. maltophilia infection to evaluate relative virulence coupled to 2D difference gel electrophoresis to explore underlying differences in protein expression. In this study we report upon three recent clinical isolates and use the collection strain ATCC13637 as a reference. The adult-zebrafish model shows discrimination capacity, i.e. from very low to very high mortality rates, with clinical symptoms very similar to those observed in natural S. maltophilia infections in fish. Strain virulence correlates with resistance to human serum, in agreement with previous studies in mouse and rat and therefore supporting zebrafish as a replacement model. Despite its clinical origin, the collection strain ATCC13637 showed obvious signs of attenuation in zebrafish, with null mortality. Multilocus-sequence-typing analysis revealed that the most virulent strains, UV74 and M30, exhibit the strongest genetic similitude. Differential proteomic analysis led to the identification of 38 proteins with significantly different abundance in the three clinical strains relative to the reference strain. Orthologs of several of these proteins have been already reported to have a role in pathogenesis, virulence or resistance mechanisms thus supporting our strategy. Proof of concept is further provided by protein Ax21, whose abundance is shown here to be directly proportional to mortality in the zebrafish infection model. Indeed, recent studies have demonstrated that this protein is a quorum-sensing-related virulence factor
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