666 research outputs found
The Second International Symposium on Tilapia in Aquaculture
No full textProceedings of the symposium held in 1987 in Bangkok, Thailand, by tilapia scientists to discuss strategies for future research and development in the tilapia industry worldwide. Contains 82 full papers, 17 poster abstracts and author and species indexes. The full papers were presented under 7 sessions: culture systems, management and production; pathology; genetics and reproduction; nutrition, physiology; biology and ecology; and economics and socioeconomics.Tilapia culture, Conferences
Polar Symposium-bis. Book of Abstracts. Sopot-Warszawa-Sosnowiec-Lublin. 2023
No full textŁepkowska E., Hołda-Michalska A., Zagórski P. (eds.), 2023: Polar Symposium-bis. Book of Abstracts. Sopot-Warszawa-Sosnowiec-Lublin.
The Polar Symposium is a cyclical, biennial scientific meeting dedicated to polar issues. For years, it has served as a natural platform for exchanging experiences, fostering integration, and facilitating discussions among Polish and international researchers of polar regions representing various scientific disciplines. The Symposium is supported by the Committee on Polar Research of the Polish Academy of Sciences, the Polish Polar Consortium, and the Polar Club of the Polish Geographical Society.
In the year 2023, the honour of organizing the 39th Polar Symposium was bestowed upon the Institute of Oceanology of the Polish Academy of Sciences in Sopot. During the plenary session, which is part of the “Decade of the Ocean” celebrations and themed Polar Inspirations - Seas and Oceans, we will listen to 12 invited presentations on 18th May. Additionally, we will also celebrate the 70th anniversary of the establishment of the Institute of Oceanology of the Polish Academy of Sciences.
On the following day, 19th May, as part of the Polar Symposium-bis organized by the Polish Polar Consortium, the Committee on Polar Research of the Polish Academy of Sciences, and the Polar Club of the Polish Geographical Society, three thematic sessions will take place:
(1) Antarctic and Arctic Ecology /Polish Polar Consortium/
(2) Tipping points of the Arctic and Antarctic system /Polar Club of the Polish Geological Society/
(3) 100 years after A.B.Dobrowolski's Natural History of Ice /The Committee on Polar Research PAS/
During the Polar Symposium-bis, a total of 24 presentations and 33 scientific posters will be showcased, which will undoubtedly serve as a basis for lively discussions and the exchange of ideas.
During the Polar Symposium-bis, 24 presentations and 33 scientific posters will be showcased, undoubtedly serving as a basis for fruitful discussions and exchanging ideas.
We are pleased to present you with the “Book of Abstracts” of the Polar Symposium-bis, containing summaries of the talks and posters.
Polar Symposium-bis
Scientific and Organizing Committee:
Robert Bialik
Wojciech Dobiński
Aleksandra Hołda-Michalska
Dariusz Ignatiuk
Elżbieta Łepkowska
Mateusz Moskalik
Mateusz Strzelecki
Piotr Zagórsk
Council for High Blood Pressure Research/InterAmerican Society of Hypertension/International Society of Hypertension: First New Investigators Symposium at the High Blood Pressure Research 2011 Scientific Sessions
No full textFor the very first time, the International Society of Hypertension (ISH) sponsored the ISH New Investigators Symposium on September 21, 2011, in Orlando, FL, entitled, “A Global Hypertension Initiative: Trainee/New Investigator Session” as part of the High Blood Pressure Research 2011 Scientific Sessions. This symposium was cosponsored by ISH, the InterAmerican Society of Hypertension, the American Heart Association's Council for High Blood Pressure Research and the Council on the Kidney in Cardiovascular Disease, and was organized entirely by the newly formed ISH New Investigators Committee (NIC; Figure 1) and young/new investigators (students, postdoctoral fellows, and early career scientists) in hypertension research.1 The symposium consisted of a half-day event with both oral and poster presentations of highly rated abstracts highlighting the most recent advances in hypertension research by young researchers. The scientific program was abstract based with >100 abstracts reviewed by new investigators as assigned by NIC. Top-scoring abstracts received an invitation for either oral or poster presentation based on their scientific merit. The program provided an opportunity for learning, networking, and socializing among budding scientists from around the world. More than 50 new investigators across 5 continents presented their research at the session, making it a truly “global” hypertension initiative, which was targeted toward young researchers
The association of blood pressure variability with dementia and cognitive impairment: a systematic review and meta-analysis
No full textAbstracts of the 19th International SHR Symposium, as published in Journal of Hypertension.
P09 Cerebrovascular disease, stroke and cognitive dysfunction.
Part of Joint Meeting ESH-ISH 2021 On-air (11th-14th April 2021)
Objective:
A body of empirical work demonstrates that high within-individual blood pressure variability (BPV) holds prognostic value to predict stroke and transient ischemic attack. The magnitude of association between BPV and other neurological outcomes remains less clear. We aimed to summarise the current evidence on whether BPV is associated to dementia and cognitive impairment in healthy older adults.
Design and method:
Electronic databases were searched for full text articles and conference abstracts in English. Prospective and cross-sectional cohort studies or clinical trials in adults without cognitive impairment at baseline were eligible. Measures of BPV included any metric over any duration (i.e. visit-to-visit BPV, day-to-day BPV, 24-hour BPV), but not day-night patterns. Outcomes included: 1. incident dementia, 2. cognitive impairment (change in cognition over time), 3. the combined endpoint of dementia and cognitive impairment, and 4. cognitive function (cross-sectional studies). If the association of mean BP with the study outcome was reported, this was extracted as well, to compare to prognostic ability of BPV with mean BP.
Results:
After screening of the initial search of 2214 references, 40 papers were included. Seven studies assessed incident dementia, 12 assessed cognitive impairment and 23 assessed cognitive function. The majority of studies assessed visit-to-visit BPV (n = 23), followed by 24-hour BPV (n = 14) and day-to-day BPV (n = 3). Increased systolic BPV was associated with the combined endpoint of dementia and cognitive impairment (odds ratio [OR] 1.24, 95% confidence interval [CI] 1.14–1.35), however mean systolic BP was not (OR = 1.13, 95% CI 0.87 to 1.45). There was no evidence of heterogeneity between BPV and mean systolic BP effect sizes (p = 0.47 for comparison, I2 = 0%). Results for diastolic BP(V) were similar. Meta-analysis for all outcomes will be available in May 2020 at the conference.
Conclusions:
On the basis of the available studies, high fluctuations in systolic BP were associated with cognitive impairment. However, there was large methodological and statistical heterogeneity among studies. To clarify whether BPV is an independent risk factor for dementia and cognitive impairment, future work should involve an individual participant data meta-analysis to overcome heterogeneity in analytical approaches.
Rianne De Heus, Phillip Tully, Na Variable Brain Consortiu
Book of Abstracts of the 14th International Temperate Reefs Symposium (ITRS 2025). 1-5 July 2025, Brest, France. Evaluation of the biochemical effects of marine heatwaves on the biobuilder species Ficopomatus enigmaticus through a multi-biomarker approach
No full textSessile benthic organisms are increasingly threatened by global environmental changes,
particularly rising temperatures. Using a multi-biomarker approach, this study examined the effects of long-term (30-day) exposure to two distinct types of marine heatwaves (MHWs) on the reef-building tubeworm Ficopomatus enigmaticus. Two different MHW scenarios were recreated to assess which type of thermal stress, prolonged or short but repeated, would have a greater impact on sessile bioconstructors. The first scenario involved two short and repeated heatwave events, each lasting 4 days, with a 5°C increase in temperature compared to the control (20 °C). Each heatwave included a gradual increase and decrease in temperature of 1 °C per day for 5 days. The second scenario involved a single heat wave in which the temperature was gradually increased by 0.5 °C per day, first reaching a 3 °C increase over the control (20 °C), which was maintained for 5 days, then reaching a peak of 4 °C, which was maintained for 7 days. After this peak, the temperature was gradually reduced in the second half of the experiment, following the same temperature ramp per day but in reverse. To assess the health status of the bioconstructor species under study, biomarkers of cell membrane damage, antioxidant enzyme activity, metabolic function, neurotoxicity, and DNA integrity were evaluated. Exposure to MHW led to alterations in metabolic activity, including an increase in glutathione S-transferase and a decrease in protein content, suggesting a reduction in energy reserves. Some analyses are still ongoing. These results highlight the impact of climate change-related stressors on biogenic reef-building organisms in marine and brackish environments
NITROGEN CYCLING IN POTOMAC RIVER TRANSITION-ZONE SHALLOW-WATER SEDIMENTS (AMMONIUM, ADSORPTION, ION EXCHANGE)
No full textA modified diffusion-controlled sampler was used during a 3-year study to collect water samples from the water-column, at the interface between the water-column and sediment, and several tens of centimeters into the sediment. Speciation of nitrogen in the system showed nitrate to be the predominant dissolved species in the water-column. Organic nitrogen and adsorbed ammonium were the predominant nitrogen forms in the sediment. Organic nitrogen concentrations ranged from 0.007 to 0.01 weight percent (0.5 to 73.3 micromoles per gram). Adsorbed ammonium concentrations ranged from non-detectable to 3.7 micromoles per gram of sediment. Concentrations of adsorbed ammonium were one-to-three orders of magnitude more than the interstitial-water concentrations.Fluxes of nitrate were directed into the sediment from the water-column approximately 75 percent of the sampling periods and ranged from 0.02 to 0.80 millimole meter('-2) day('-1). Flux of nitrate from the sediment into the water-column, due apparently to nitrification in surficial sediment, occurred only during 2 summer sampling periods and never exceeded 0.5 millimole meter('-2) day('-1).Ammonium fluxes were less than 0.1 millimole meter('-2) day('-1) during 90 percent of the sampling periods. Of the ammonium fluxes which were greater than 0.05 millimole meter('-2) day('-1), all were into the sediment during sampling periods experiencing sediment resuspension, and all were into the water-column during periods of calm. Resuspension occurred during approximately one-half of the sampling periods. One resuspension event could mix more ammonium as interstitial-water and adsorbed ammonium with the water-column than could be delivered to the water-column by diffusive flux in 10 to 1000 days. The magnitude of the input from resuspension depended on the concentration of adsorbed ammonium in the sediment at the time of the event. Laboratory experiments suggest that up to 100 percent of adsorbed ammonium can desorb during resuspension.The sediment solids have a cation exchange capacity of 4.7 (+OR-) 0.9 milliequivalents per 100 grams. Ammonium adsorption appears to be related to the presence of cation-exchanging minerals and amorphous silica but not organic matter. Experimental evidence suggests that adsorption and desorption of ammonium involves more than simple ion exchange.Interstitial-water samples from 2 sampling periods were found to be in equilibrium with struvite, MgNH(,4)PO(,4).Source: Dissertation Abstracts International, Volume: 45-03, Section: B, page: 8010.Ph.D. American University 1984.Englis
Bibliographics for the 983 eprints in the live archives of E-LIS : trends and status report up to 7th July 2004, based on author-self-archiving metadata
No full textThe priority for ideas and philosophy related to "Network Theory" have been traced back and documented by Braun(2004),and credit goes to Karinthy(1929).The IT has empowered to realise it, as the most practical phenomena and it is no more a humour. The OAI (Open Archives Initiatives)and ACIS (Academic Contributor Information System)are progressive in the direction ,which may lead to realise the "Collective Genius" at global level. Focus of present study is on Author-Self-Archiving (A-S-A)Metadata of the 983 Eprints in the Live Archives of the E-LIS (EPrints of Library and Information Science),which were approved till 7th July 2004.The A-S-A Metadata was used for librametric analysis. Self-explanatory bibliographics are illustrated.The highlights include: Conference papers (34%); highest approval, June 2004 (28%); published archives (76%);not refereed (52%); not in public domain (60%); highest self-archiving-author (De Robbio, Antonella).The Nos. of EPrints having single JITA domain specifications were: Theoretical and general aspects of libraries and information(27); Information use and sociology of information(80);Users,literacy and reading(13);Libraries as physical collections(30);Publishing and legal issues(57);Management(13);Industry, profession and education(36);Information sources, supports, channels(113) ; Information treatment for information services, Information functions and techniques (101); Technical services libraries, archives and museums(25); Housing technologies(1); Information technology and library technology(92); and Inter-domainery (395) i.e. having specifications of two or more than two JITA classes
The effectiveness of interventions to treat severe acute malnutrition in young children: a systematic review
No full textSevere acute malnutrition (SAM) arises as a consequence of a sudden period of food shortage and is associated with loss of a person’s body fat and wasting of their skeletal muscle. Many of those affected are already undernourished and are often susceptible to disease. Infants and young children are the most vulnerable as they require extra nutrition for growth and development, have comparatively limited energy reserves and depend on others. Undernutrition can have drastic and wide-ranging consequences for the child’s development and survival in the short and long term. Despite efforts made to treat SAM through different interventions and programmes, it continues to cause unacceptably high levels of mortality and morbidity. Uncertainty remains as to the most effective methods to treat severe acute malnutrition in young children.ObjectivesTo evaluate the effectiveness of interventions to treat infants and children aged < 5 years who have SAM.Data sourcesEight databases (MEDLINE, EMBASE, MEDLINE In-Process & Other Non-Indexed Citations, CAB Abstracts Ovid, Bioline, Centre for Reviews and Dissemination, EconLit EBSCO and The Cochrane Library) were searched to 2010. Bibliographies of included articles and grey literature sources were also searched. The project expert advisory group was asked to identify additional published and unpublished references.Review methodsPrior to the systematic review, a Delphi process involving international experts prioritised the research questions. Searches were conducted and two reviewers independently screened titles and abstracts for eligibility. Inclusion criteria were applied to the full texts of retrieved papers by one reviewer and checked independently by a second. Included studies were mapped to the research questions. Data extraction and quality assessment were undertaken by one reviewer and checked by a second reviewer. Differences in opinion were resolved through discussion at each stage. Studies were synthesised through a narrative review with tabulation of the results.ResultsA total of 8954 records were screened, 224 full-text articles were retrieved, and 74 articles (describing 68 studies) met the inclusion criteria and were mapped. No evidence focused on treatment of children with SAM who were human immunodeficiency virus sero-positive, and no good-quality or adequately reported studies assessed treatments for SAM among infants < 6 months old. One randomised controlled trial investigated fluid resuscitation solutions for shock, with none adequately treating shock. Children with acute diarrhoea benefited from the use of hypo-osmolar oral rehydration solution (H-ORS) compared with the standard World Health Organization-oral rehydration solution (WHO-ORS). WHO-ORS was not significantly different from rehydration solution for malnutrition (ReSoMal), but the safety of ReSoMal was uncertain. A rice-based ORS was more beneficial than glucose-based ORSs, and provision of zinc plus a WHO-ORS had a favourable impact on diarrhoea and need for ORS. Comparisons of different diets in children with persistent diarrhoea produced conflicting findings. For treating infection, comparison of amoxicillin with ceftriaxone during inpatient therapy, and routine provision of antibiotics for 7 days versus no antibiotics during outpatient therapy of uncomplicated SAM, found that neither had a significant effect on recovery at the end of follow-up. No evidence mapped to the next three questions on factors that affect sustainability of programmes, long-term survival and readmission rates, the clinical effectiveness of management strategies for treating children with comorbidities such as tuberculosis and Helicobacter pylori infection and the factors that limit the full implementation of treatment programmes. Comparison of treatment for SAM in different settings showed that children receiving inpatient care appear to do as well as those in ambulatory or home settings on anthropometric measures and response time to treatment. Longer-term follow-up showed limited differences between the different settings. The majority of evidence on methods for correcting micronutrient deficiencies considered zinc supplements; however, trials were heterogeneous and a firm conclusion about zinc was not reached. There was limited evidence on either supplementary potassium or nicotinic acid (each produced some benefits), and nucleotides (not associated with benefits). Evidence was identified for four of the five remaining questions, but not assessed because of resource limitation.LimitationsThe systematic review focused on key questions prioritised through a Delphi study and, as a consequence, did not encompass all elements in the management of SAM. In focusing on evidence from controlled studies with the most rigorous designs that were published in the English language, the systematic review may have excluded other forms of evidence. The systematic review identified several limitations in the evidence base for assessing the effectiveness of interventions for treating young children with severe acute malnutrition, including a lack of studies assessing the different interventions; limited details of study methods used; short follow-up post intervention or discharge; and heterogeneity in participants, interventions, settings, and outcome measures affecting generalisability.ConclusionsFor many of the most highly ranked questions evidence was lacking or inconclusive. More research is needed on a range of topic areas concerning the treatment of infants and children with SAM. Further research is required on most aspects of the management of SAM in children < 5 years, including intravenous resuscitation regimens for shock, management of subgroups (e.g. infants < 6 months old, infants and children with SAM who are human immunodeficiency virus sero-positive) and on the use of antibiotics.FundingThe National Institute for Health Research Technology Assessment programme.<br/
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