100 research outputs found
Seeds for Needs - India: Broadening the genetic base of crops to empower farmers for climate change adaptation through crowdsourcing
A poster to introduce our approach to exposing farmers to more crops and their varieties, increasing first-hand knowledge about different traits and strengthening their seed systems and seed saving capacity. The poster shows how we are upscaling activities and some of the results so far, as well as innovative weather capturing technologies we are using and future plans
Calcific aortic valve disease and hypertension
This review addresses the role of hypertension in precipitating Calcific aortic valve disease (CAVD) and the therapeutic potential of anti-hypertensive interventions to ameliorate CAVD. CAVD was originally considered to be a degenerative disease representing the "wear and tear" of the aortic valves. More recently both conceptually and experimentally, CAVD has come to be considered the result of an active disease process, Whilst, there are some common factors in the pathology and risk factors for atherosclerosis and CAVD there are also some distinct differences. Hypertension is an established risk factor for coronary artery disease and has been recognised as a risk factor for CAVD. Angiotensin converting enzyme inhibitors have been found to have beneficial effects in CAVD and as in atherosclerosis such effects may be due to the blood pressure lowering action but also to direct pleiotropic effects on the biochemical and cellular mechanisms of disease progression in the respective tissues. The very high prevalence of hypertension in the community coupled with an aging population, a risk factor associated with both hypertension and CAVD, infers that hypertension will be one of the predominant factors that increase the impact of CAVD on human health in the coming decades
p38 MAP kinase mediated proteoglycan synthesis as a target for the prevention of atherosclerosis
The major underlying pathology of most cardiovascular disease is the chronic inflammatory disease of atherosclerosis. Type 2 diabetes, also recognised as an inflammatory condition, accelerates the development of atherosclerosis. Current therapies for atherosclerosis target risk factors such as elevated blood lipids and hypertension and are of strong but limited efficacy. The "response to retention" hypothesis states that atherosclerosis is initiated by the accumulation of lipids through binding to extracellular matrix, and this is specifically the glycosaminoglycan (GAG) chains on proteoglycans. Many vasoactive agonists stimulate changes in the structure of the GAGs which increase lipid binding and the relevant signalling pathways are a potential therapeutic target. It has recently been demonstrated that the actions of transforming growth factor b; on vascular smooth muscle proteoglycan synthesis involves signalling through p38 MAP kinase and inhibition of this pathway reduces binding of lipids. Inhibition of p38 MAP kinase will elicit a wide spread antiinflammatory response which may alleviate some of the deleterious processes in cardiovascular tissues. This article explores the potential for the actions of p38 MAP kinase inhibitors directed at proteoglycan synthesis in vascular smooth muscle to contribute to the beneficial outcomes from targeting p38 MAP kinase for the prevention of cardiovascular disease
Rumor Stance Classification in Online Social Networks: A Survey on the State-of-the-Art, Prospects, and Future Challenges
The emergence of the Internet as a ubiquitous technology has facilitated the
rapid evolution of social media as the leading virtual platform for
communication, content sharing, and information dissemination. In spite of
revolutionizing the way news used to be delivered to people, this technology
has also brought along with itself inevitable demerits. One such drawback is
the spread of rumors facilitated by social media platforms which may provoke
doubt and fear upon people. Therefore, the need to debunk rumors before their
wide spread has become essential all the more. Over the years, many studies
have been conducted to develop effective rumor verification systems. One aspect
of such studies focuses on rumor stance classification, which concerns the task
of utilizing users' viewpoints about a rumorous post to better predict the
veracity of a rumor. Relying on users' stances in rumor verification task has
gained great importance, for it has shown significant improvements in the model
performances. In this paper, we conduct a comprehensive literature review on
rumor stance classification in complex social networks. In particular, we
present a thorough description of the approaches and mark the top performances.
Moreover, we introduce multiple datasets available for this purpose and
highlight their limitations. Finally, some challenges and future directions are
discussed to stimulate further relevant research efforts.Comment: 13 pages, 2 figures, journa
Using Social Determinants Screening/Mapping Tools to Identify Needs and Resources for Student-Run Free Clinic Patients
Background: Social determinants of health have been well accepted as contributing to health outcomes. They are a vital aspect of health care delivery and must be a consideration, especially among free clinic populations. Social determinants of health have also become a required element of medical school curricula. The Student Outreach to Area Residents Student-Run Free Clinic based out of Northeast Ohio Medical University piloted a student-led program that implemented social determinants of health screening and community resource referral as a part of integrated health care delivery for all its patients. Methods: We described the development of a screening tool, protocol, and creation of community resource referral materials. We also described the tracking of patient-reported needs and mapping of location and accessibility of community resources. One hundred patients were surveyed through convenience sampling, and results were used for program improvement. Results/Conclusion: After collecting and analyzing survey results, it was found that the 2 most frequently requested determinants were mental health and utilities services, and the most available community resource was emergency food services. We also mapped these results by zip code and found gaps between need and distribution of services. We demonstrated the utility of mapping to identify points of improvement for the future. We also provided lessons learned related to effective social determinants of health screening, community resource referral, and overall program implementation in student-run free clinics. We further explained the benefits of including similar student-led programs as a way for students to gain practical experience related to social determinants of health
Exantema periflexural asimétrico de la infancia: reporte de 2 casos
El exantema periflexural asimétrico de la infancia es una entidad subdiagnosticada, de etiologÃa incierta, que afecta, predominantemente, a niñas alrededor de los dos años de edad. Se caracteriza por ser un exantema que solo afecta a un hemicuerpo y que se resuelve sin tratamiento especÃfico. Se reportan dos casos clÃnicos acerca de esta entidad. El primero, referente a una niña de 14 meses con exantema papuloeritematoso de inicio en la axila siete dÃas antes y extensión a la extremidad superior y el hemitronco ipsilateral sin otras alteraciones. El segundo, referente a una niña de 24 meses de edad con exantema papuloeritematoso pruriginoso de inicio en la extremidad inferior izquierda y la posterior extensión por el hemicuerpo izquierdo. Dadas las caracterÃsticas del exantema y la edad de las pacientes, se diagnosticó exantema periflexural asimétrico y recibió tratamiento sintomático, con resolución del cuadro de forma espontánea
Reliability and Reproducibility of Landmark Identification in Unilateral Cleft Lip and Palate Patients: Digital Lateral Vis-A-Vis CBCT-Derived 3D Cephalograms
Background: The aim of the retrospective observational study was to compare the precision of landmark identification and its reproducibility using cone beam computed tomography-derived 3D cephalograms and digital lateral cephalograms in unilateral cleft lip and palate patients. Methods: Cephalograms of thirty-one (31) North Indian children (18 boys and 13 girls) with a unilateral cleft lip and palate, who were recommended for orthodontic treatment, were selected. After a thorough analysis of peer-reviewed articles, 20 difficult-to-trace landmarks were selected, and their reliability and reproducibility were studied. These were subjected to landmark identification to evaluate interobserver variability; the coordinates for each point were traced separately by three different orthodontists (OBA, OBB, OBC). Statistical analysis was performed using descriptive and inferential statistics with paired t-tests to compare the differences measured by the two methods. Real-scale data are presented in mean ± SD. A p-value less than 0.05 was considered as significant at a 95% confidence level. Results: When comparing, the plotting of points posterior nasal spine (PNS) (p < 0.05), anterior nasal spine (ANS) (p < 0.01), upper 1 root tip (p < 0.05), lower 1 root tip (p < 0.05), malare (p < 0.05), pyriforme (p < 0.05), porion (p < 0.01), and basion (p < 0.05) was statistically significant. Conclusion: In patients with a cleft lip and palate, the interobserver identification of cephalometric landmarks was significantly more precise and reproducible with cone beam computed tomography -derived cephalograms vis-a-vis digital lateral cephalograms
Comparative Evaluation of Azadirachta indica (Neem) Chip and Soft Tissue Diode Lasers as a Supplement to Phase i Periodontal Therapy in Localized Chronic Moderate Periodontitis: A Randomized Controlled Clinical Trial
Introduction. The current trial aimed to assess and compare the efficacy of neem chip and diode laser as a local drug delivery (LDD) agent as a supplement to phase I periodontal therapy in treatment of localized chronic moderate periodontitis. Materials and Methodology. Fourteen systemically healthy participants with 4-6 mm deep periodontal pockets at least in three quadrants (with no alveolar bony defect amenable to respective or regenerative osseous surgery, as seen in orthopantomograph) were selected for the trial. One week after phase I therapy, 10% absorbable chip of neem (commercially prepared by staff of a pharmacy college, Sheriguda, India) was placed in the periodontal pocket on one site, and soft tissue diode laser pocket sterilization was performed on the other site of the arch. Remaining one site was considered as a control. Parameters recorded clinically were plaque index (PI), papillary bleeding index (PBI), probing pocket depth (PPD), and relative attachment level (RAL) measured at baseline, 21st day, and one month postoperatively. Results. Statistically significant improvements were observed in all clinical parameters at one month as compared to baseline for both treatment groups. Conclusion. Neem chip supplemented with phase I therapy showed best improvement in clinical parameters followed by laser supplemented with phase I therapy in comparison to phase I therapy alone at one month follow-up. Clinical Significance. Neem chips are nature's products, affordable without side effects, with a potential to be used as a local drug delivery agent in treating moderate chronic periodontitis
Effect of seed moisture content and storage temperature on seed longevity of hemp (Cannabis sativa)
Hemp (Cannabis sativa L.) is one of the earliest domesticated plants grown for its protein and oil rich seed, fiber and psychoactive substances and it is one of the earliest known medicinal plants in human history. Studies were conducted on seed germinability (germination test) and viability (topographical tetrazoliun chloride test) in three seed lots to determine the seed quality. Studies conducted on effect of five seed moisture contents (5, 7, 8, 10 and 12 % on fresh weight basis), three storage temperature (ambient, 15°C and -20°C) and eight storage periods (0, 3, 6, 9, 12, 18, 24 and 36 months) on seed longevity revealed that the critical moisture content (moisture content required in seeds for retaining initial germination after storage of seeds up to 36 months) of seeds for ambient storage condition of Delhi was 5 %, which increased to 7 % in 15°C and 12 % at -20°C storage temperature. The seeds are desiccation as well as chilling tolerant, therefore, exhibit orthodox storage behavior and are ideal for ex-situ conservation of seeds in seed/gene banks
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