142 research outputs found
Anti-Inflammatory Activity of Lactobacillus on Carrageenan-Induced Paw Edema in Male Wistar Rats
Introduction. Lactobacillus casei and Lactobacillus acidophilus were used to assess the anti-inflammatory properties in carrageenan induced acute inflammatory model. Materials and Methods. Diclofenac sodium was used as standard drug at concentration of 150 mg/kg of body weight. Culture of Lactobacillus 2 × 107 CFU/ml was given orally. Edema was induced with 1% carrageenan to all the groups after one hour of the oral treatments. Paw thickness was checked at t = 1, 2, 3, 4, 5, and 24 hours. Stair climbing score and motility score were assessed at t = 24 hours. Cytokines assay for IL-6, IL-10, and TNF-α was performed on serum samples. Results. Lactobacillus showed a statistically significant decrease in paw thickness at P < 0.001. L. acidophilus and L. casei decreased by 32% and 28% in paw thickness. They both significantly increased the stair climbing and motility score. Lactobacillus treatment significantly downregulated IL-6 and TNF-α while upregulated IL-10 at P < 0.0001. Conclusion. L. casei and L. acidophilus significantly decreased the inflammatory reactions induced by carrageenan. This study has also proposed that Lactobacillus ameliorated the inflammatory reaction by downregulating the proinflammatory cytokines pathway
MoCa: Measuring Human-Language Model Alignment on Causal and Moral Judgment Tasks
Human commonsense understanding of the physical and social world is organized
around intuitive theories. These theories support making causal and moral
judgments. When something bad happens, we naturally ask: who did what, and why?
A rich literature in cognitive science has studied people's causal and moral
intuitions. This work has revealed a number of factors that systematically
influence people's judgments, such as the violation of norms and whether the
harm is avoidable or inevitable. We collected a dataset of stories from 24
cognitive science papers and developed a system to annotate each story with the
factors they investigated. Using this dataset, we test whether large language
models (LLMs) make causal and moral judgments about text-based scenarios that
align with those of human participants. On the aggregate level, alignment has
improved with more recent LLMs. However, using statistical analyses, we find
that LLMs weigh the different factors quite differently from human
participants. These results show how curated, challenge datasets combined with
insights from cognitive science can help us go beyond comparisons based merely
on aggregate metrics: we uncover LLMs implicit tendencies and show to what
extent these align with human intuitions.Comment: 34 pages, 7 figures. NeurIPS 202
The hsp 16 Gene of the Probiotic Lactobacillus acidophilus Is Differently Regulated by Salt, High Temperature and Acidic Stresses, as Revealed by Reverse Transcription Quantitative PCR (qRT-PCR) Analysis
Small heat shock proteins (sHsps) are ubiquitous conserved chaperone-like proteins involved in cellular proteins protection under stressful conditions. In this study, a reverse transcription quantitative PCR (RT-qPCR) procedure was developed and used to quantify the transcript level of a small heat shock gene (shs) in the probiotic bacterium Lactobacillus acidophilus NCFM, under stress conditions such as heat (45 °C and 53 °C), bile (0.3% w/v), hyperosmosis (1 M and 2.5 M NaCl), and low pH value (pH 4). The shs gene of L. acidophilus NCFM was induced by salt, high temperature and acidic stress, while repression was observed upon bile stress. Analysis of the 5′ noncoding region of the hsp16 gene reveals the presence of an inverted repeat (IR) sequence (TTAGCACTC-N9-GAGTGCTAA) homologue to the controlling IR of chaperone expression (CIRCE) elements found in the upstream regulatory region of Gram-positive heat shock operons, suggesting that the hsp16 gene of L. acidophilus might be transcriptionally controlled by HrcA. In addition, the alignment of several small heat shock proteins identified so far in lactic acid bacteria, reveals that the Hsp16 of L. acidophilus exhibits a strong evolutionary relationship with members of the Lactobacillus acidophilus group
Preliminary study of the antioxidant properties of flowers and roots of Pyrostegia venusta (Ker Gawl) Miers
<p>Abstract</p> <p>Background</p> <p>Free radical stress leads to tissue injury and can eventually to arthritis, atherosclerosis, diabetes mellitus, neurodegenerative diseases and carcinogenesis. Several studies are ongoing worldwide to find natural antioxidants of plant origin. We assessed the <it>in-vitro </it>antioxidant activities and screened the phytochemical constituents of methanolic extracts of <it>Pyrostegia venusta </it>(Ker Gawl) <it>Miers</it>.</p> <p>Methods</p> <p>We evaluated the antioxidant potential and phytochemical constituents of <it>P. venusta </it>using 1,1-Diphenyl-2-picrylhydrazyl (DPPH), 2, 2'-azinobis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and ferric reducing antioxidant power (FRAP) assays. Gas chromatography-mass spectroscopy (GC-MS) studies were also undertaken to assess the phytochemical composition of the flower extracts.</p> <p>Results</p> <p>Phytochemical analyses revealed the presence of terpenoids, alkaloids, tannins, steroids, and saponins. The reducing ability of both extracts was in the range (in μm Fe(II)/g) of 112.49-3046.98 compared with butylated hydroxytoluene (BHT; 63.56 ± 2.62), catechin (972.02 ± 0.72 μm) and quercetin 3208.27 ± 31.29. A significant inhibitory effect of extracts of flowers (IC<sub>50 </sub>= 0.018 ± 0.69 mg/ml) and roots (IC<sub>50 </sub>= 0.026 ± 0.94 mg/ml) on ABTS free radicals was detected. The antioxidant activity of the extracts of flowers (95%) and roots (94%) on DPPH radicals was comparable with that of ascorbic acid (98.9%) and BHT (97.6%). GC-MS study revealed the presence of myoinositol, hexadecanoic acid, linoleic acid, palmitic acid and oleic acid in the flower extracts.</p> <p>Conclusion</p> <p>These data suggest that <it>P. venusta </it>is a natural source of antioxidants. The extracts of flowers and roots of <it>P. venusta </it>contain significant amounts of phytochemicals with antioxidative properties and could serve as inhibitors or scavengers of free radicals. <it>P. venusta </it>could be exploited as a potential source for plant-based pharmaceutical products. These results could form a sound basis for further investigation in the potential discovery of new natural bioactive compounds.</p
Prevalence of asthma symptoms based on the European Community Respiratory Health Survey questionnaire and FENO in university students: gender differences in symptoms and FENO
<p>Abstract</p> <p>Background</p> <p>The fractional concentration of nitric oxide in exhaled air (F<smcaps>E</smcaps>NO) is used as a biomarker of eosinophilic airway inflammation. F<smcaps>E</smcaps>NO is increased in patients with asthma. The relationship between subjective asthma symptoms and airway inflammation is an important issue. We expected that the subjective asthma symptoms in women might be different from those in men. Therefore, we investigated the gender differences of asthma symptoms and F<smcaps>E</smcaps>NO in a survey of asthma prevalence in university students.</p> <p>Methods</p> <p>The information about asthma symptoms was obtained from answers to the European Community Respiratory Health Survey (ECRHS) questionnaire, and F<smcaps>E</smcaps>NO was measured by an offline method in 640 students who were informed of this study and consented to participate.</p> <p>Results</p> <p>The prevalence of asthma symptoms on the basis of data obtained from 584 students (266 men and 318 women), ranging in age from 18 to 24 years, was analyzed. Wheeze, chest tightness, an attack of shortness of breath, or an attack of cough within the last year was observed in 13.2% of 584 students. When 38.0 ppb was used as the cut-off value of F<smcaps>E</smcaps>NO to make the diagnosis of asthma, the sensitivity was 86.8% and the specificity was 74.0%. F<smcaps>E</smcaps>NO was ≥ 38.0 ppb in 32.7% of students. F<smcaps>E</smcaps>NO was higher in men than in women. The prevalence of asthma symptoms estimated by considering F<smcaps>E</smcaps>NO was 7.2%; the prevalence was greater in men (9.4%) than women (5.3%). A F<smcaps>E</smcaps>NO ≥ 38.0 ppb was common in students who reported wheeze, but not in students, especially women, who reported cough attacks.</p> <p>Conclusions</p> <p>The prevalence of asthma symptoms in university students age 18 to 24 years in Japan was estimated to be 7.2% on the basis of F<smcaps>E</smcaps>NO levels as well as subjective symptoms. Gender differences were observed in both F<smcaps>E</smcaps>NO levels and asthma symptoms reflecting the presence of eosinophilic airway inflammation.</p> <p>Trial registration number</p> <p>UMIN000003244</p
Practical Digital Curation Skills for Archivists in the 21st Century
The University of Maryland's Digital Curation Innovation
Center (DCIC) in the College of Information Studies
promotes research and education in digital curation and
fosters interdisciplinary partnerships using Big Records
and archival analytics through public, industry, and
government partnerships. In this session, technologists,
archivists, and students from the DCIC will provide case
studies involving archival records in a digital environment
that focus on redlining in urban neighborhoods, the
Japanese American experience in World War II internment
camps, and navigating Holocaust-era digital data
Recommended from our members
From Lancashire to Bombay: Commercial Networks, Technology Diffusion, and Business Strategy in the Bombay Textile Industry
This thesis is an analysis of technology diffusion and the long-run institutional impact of the nature of that diffusion. It examines how a growing commercial trading relationship with Lancashire-based millwrights enabled textile industrialisation in late 19th century Bombay, and reflects upon the evolving character of Indian manufacturing and organisational behaviour within and beyond the colonial context, and into 21st century industrial strategy.
Drawing upon primary archival material from sources in Britain and India (including historical company records, trade association records, transactional correspondence between Lancashire and Bombay, and administrative records of the India Office in Whitehall), and upon 27 elite interviews with prominent Mumbai-based businessmen and their families, a technological and cultural dependence by manufacturing elites upon the commercial agent is identified. The emplacement of colonial business norms and particularly the use of informal networks, in turn bolstered by a culture for clubbability, appears to influence the distinctly tight-knit, ‘gentlemanly’ character of Indian family business houses established during the late 19th and early 20th century.
Applying a mixed-methods approach to technology theory and analysis, the data chapters are split into two parts, respectively concerning info rmation flows and knowledge flows from the UK to Western India. The former explores patterns in technological transactions and decisions governing the diffusion of textile technology that enabled industrial establishment. The latter focuses on the replication of managerial, cultural and business practices following and reflecting upon Bombay’s textile industrialisation; this establishes the observed presence of British ideals of gentlemanly business conduct within informal networks, familial and community ties.
Overall, this research highlights how business history may be used as a lens to understand the process of technology diffusion and analyse the reinforcement of culturally-hybrid social norms in peripheral regions via technical or commercial links. In terms of developmental trajectory, moreover, this case study considers how given limited capacity for innovation or capital goods production, strategic supply-side decisions may garner early cumulative value by replicating industrial production, albeit with long-term institutional consequences. This research has implications for future understanding of the development of UK-Commonwealth trading relationships, and how these might foster structural transformation in the so-called Fourth Industrial Revolution. While this thesis focuses on the diffusion of physical capital and technology-driven industry, such a narrative exploration of networks and business norms surrounding structural transformation might be pursued based on alternative factors of production including capital investment and flow, or else feasibly extend into other post-colonial regions.ICA India, Smuts Memorial Fund (Managed by Cambridge Trusts, on behalf of Jaan Christiaan Smuts), the Centre of Development Studies (University of Cambridge) and Queens' College, Cambridge
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