5 results on '"Gal, Eyal"'
Search Results
2. Key questions for research and conservation of mesophotic coral ecosystems and temperate mesophotic ecosystems
- Author
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Sergio Rossi, Yossi Loya, Tom C. L. Bridge, Andrea Gori, Jack H. Laverick, Pim Bongaerts, Federica Costantini, Christine Ferrier-Pagès, Gal Eyal, Gretchen Goodbody-Gringley, Heidi L. Burdett, Christian R. Voolstra, Lucy C. Woodall, David K. Weinstein, Joseph A. Turner, Erika Gress, Nuria Viladrich, Michelle L. Taylor, Dominic A. Andradi-Brown, J. Williams, Joshua D. Voss, Yossi Loya, Kimberly A. Puglise, Tom C.L. Bridge, Joseph A. Turner, Dominic A. Andradi-Brown, Andrea Gori, Pim Bongaerts, Heidi L. Burdett, Christine Ferrier-Pagès, Christian R. Voolstra, David K. Weinstei, Tom C. L. Bridge, Federica Costantini, Erika Gress, Jack Laverick, Yossi Loya, Gretchen Goodbody-Gringley, Sergio Rossi, Michelle L. Taylor, Nuria Viladrich, Joshua D. Voss, Joel Williams, Lucy C. Woodall, Gal Eyal, Loya, Y, Puglise, K, Bridge, TCL, European Commission, Turner, Joseph A., Andradi-Brown, Dominic A., Gori, Andrea, Bongaerts, Pim, Burdett, Heidi L., Ferrier-Pagès, Christine, Voolstra, Christian R., Weinstein, David K., Bridge, Tom C. L., Costantini, Federica, Gress, Erika, Laverick, Jack, Loya, Yossi, Goodbody-Gringley, Gretchen, Rossi, Sergio, Taylor, Michelle L., Viladrich, Nuria, Voss, Joshua D., Williams, Joel, Woodall, Lucy C., and Eyal, Gal
- Subjects
0106 biological sciences ,business.industry ,010604 marine biology & hydrobiology ,Environmental resource management ,Biodiversity ,Distribution (economics) ,Limiting ,15. Life on land ,Mesophotic ,010603 evolutionary biology ,01 natural sciences ,Temperate mesophotic ecosystems ,Field (geography) ,Geography ,Research questions ,Mesophotic, Mesophotic coral ecosystems, Temperate mesophotic ecosystems, Research priorities, Research questions ,Mesophotic coral ecosystems ,Temperate climate ,Key (cryptography) ,Ecosystem ,14. Life underwater ,business ,Research priorities - Abstract
15 pages, Mesophotic coral ecosystems (MCEs) and temperate mesophotic ecosystems (TMEs) have received increasing research attention during the last decade as many new and improved methods and technologies have become more accessible to explore deeper parts of the ocean. However, large voids in knowledge remain in our scientific understanding, limiting our ability to make scientifically based decisions for conservation and management of these ecosystems. Here, we present a list of key research and conservation questions to enhance progress in the field. Questions were generated following an initial open call to MCE and TME experts, representing a range of career levels, interests, organizations (including academia, governmental, and nongovernmental), and geographic locations. Questions were refined and grouped into eight broad themes: (1) Distribution, (2) Environmental and Physical Processes, (3) Biodiversity and Community Structure, (4) Ecological Processes, (5) Connectivity, (6) Physiology, (7) Threats, and (8) Management and Policy. Questions were ranked within themes, and a workshop was used to discuss, refine, and finalize a list of 25 key questions. The 25 questions are presented as a guide for MCE and TME researchers, managers, and funders for future work and collaborations, JT, EG, and GE would like to thank ICRS for their student travel grants to attend the ECRS conference. JT would also like to acknowledge funding from BHP and the Ningaloo Outlook Program for their support. Lastly, we are grateful for thoughtful comments on this manuscript from nine reviewers (Sam Kahng, Yehuda Benayahu, Richard Appeldoorn, Heather Spalding, Anthony Montgomery, Shirley A. Pomponi, and three anonymous reviewers) and the editor Kimberly Puglise. GE has received funding for this project from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement No. 796025
- Published
- 2019
3. Repetitive sex change in the stony coral Herpolitha limax across a wide geographic range
- Author
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Frederic Sinniger, Yoko Nozawa, Saki Harii, Omri Bronstein, Or Ben-Zvi, Kazuhiko Sakai, Gal Eyal, Yossi Loya, Lee Eyal-Shaham, and Tom Shlesinger
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Male ,food.ingredient ,Coral ,lcsh:Medicine ,Zoology ,Population density ,Article ,Sex change ,food ,Japan ,Animals ,Sex Ratio ,Israel ,lcsh:Science ,Ecosystem ,Population Density ,geography ,Sex Characteristics ,Multidisciplinary ,geography.geographical_feature_category ,Jordan ,Limax ,biology ,Coral Reefs ,Reproduction ,lcsh:R ,fungi ,Herpolitha ,Coral reef ,biology.organism_classification ,Anthozoa ,lcsh:Q ,Female ,sense organs ,Genetic Fitness ,Sex ratio ,Sex characteristics ,Environmental Monitoring - Abstract
Sex change has been widely studied in animals and plants. However, the conditions favoring sex change, its mode and timing remain poorly known. Here, for the first time in stony corals, we report on a protandrous (youngest individuals are males) repetitive sex change exhibited by the fungiid coral Herpolitha limax across large spatial scales (the coral reefs of Japan, Jordan and Israel) and temporal scales (2004–2017). In contrast to most corals, this species is a daytime spawner (08:00–10:00 AM) that spawned at the same time/same date across all the study sites. The sporadically scattered populations of H. limax among the coral reefs of Eilat (Israel) and Aqaba (Jordan) exhibited significantly slower growth, earlier sex change, and lower percentages of reproduction and sex change in comparison to the densely aggregated populations in Okinawa (Japan). At all sites, sex ratio varied among years, but was almost always biased towards maleness. Growth rate decreased with size. We conclude that comparable to dioecious plants that display labile sexuality in response to energetic and/or environmental constraints, the repetitive sex change displayed by H. limax increases its overall fitness reinforcing the important role of reproductive plasticity in the Phylum Cnidaria in determining their evolutionary success., 論文
- Published
- 2019
4. Assessment and validation of the new capsule endoscopy Crohn's disease activity index (CECDAI).
- Author
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Gal, Eyal, Geller, Alex, Fraser, Gerald, Levi, Zohar, and Niv, Yaron
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COMPARATIVE studies , *CROHN'S disease , *GASTROINTESTINAL motility , *SMALL intestine , *RESEARCH methodology , *MEDICAL cooperation , *RESEARCH , *EVALUATION research , *CAPSULE endoscopy , *SEVERITY of illness index ,RESEARCH evaluation - Abstract
Background: Capsule endoscopy is a relatively new imaging tool for the detection of small bowel pathology. The assessment of the severity of Crohn's disease by capsule endoscopy is not standardized and is limited by interobserver variations in interpreting the findings.Aim: To develop, assess and validate a new, simple capsule endoscopy Crohn's disease activity index (CECDAI) in order to grade the severity of small bowel capsule endoscopy findings.Methods: The system involves dividing the small bowel into proximal and distal segments according to transit time and then rating each segment on the basis of three parameters: inflammation (A), extent of disease (B) and presence of strictures (C). The segmental score is calculated by multiplying the inflammation subscore by the disease-subextent score and adding the stricture subscore (A x B + C); the final score is calculated by adding the two segmental scores: CECDAI = (A1 x B1 + C1) + (A2 x B2 + C2). In the present study, four senior endoscopists (two with experience in capsule endoscopy interpretation) independently reviewed coded capsule endoscopy videos of 20 patients with Crohn's disease and rated them according to the CECDAI. Interobserver variability was analyzed by Spearman's correlation test.Results: The CECDAI total scores for the 20 patients ranged from 0 to 26. The correlation for the total score assigned between every two observers was 0.867 (0.700-1.000 = strong degree association; WHO classification; P < 0.0001). The Kappa statistics for agreement among all observers for the subscores and total scores were as follows: A1, 0.31 +/- 0.05; B1, 0.25 +/- 0.05; C1 (no cases); A2, 0.51 +/- 0.05; B2, 0.57 +/- 0.05; C2, 0.27 +/- 0.07. All examiners reported that the system was simple to learn and apply.Conclusions: The CECDAI score may serve as a convenient, reliable and reproducible diagnostic and follow-up tool for use by experienced endoscopists in the evaluation of patients with Crohn's disease of the small bowel. [ABSTRACT FROM AUTHOR]- Published
- 2008
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5. Endoscopy in asymptomatic minidose aspirin consumers.
- Author
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Niv, Yaron, Battler, Alex, Abuksis, Galia, Gal, Eyal, Sapoznikov, Boris, and Vilkin, Alex
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VASCULAR diseases ,ASPIRIN ,DRUG administration ,DOSE-effect relationship in pharmacology ,DUODENAL ulcers ,GASTRIC mucosa ,GASTROINTESTINAL system ,INTESTINAL mucosa ,LONGITUDINAL method ,NONSTEROIDAL anti-inflammatory agents ,PEPTIC ulcer ,DISEASE prevalence ,DIGESTIVE system endoscopic surgery ,PREVENTION - Abstract
Aspirin is widely used for its antiplatelet activity, but it harbors a risk of severe adverse gastrointestinal effects, such as bleeding and perforation, especially in elderly people. Our aim to assess the prevalence of upper gastrointestinal lesions and the effect of aspirin on the gastrointestinal mucosa in asymptomatic subjects taking minidose aspirin (100 to 325 mg per day) for more than 3 months. A prospective, open design was used. Patients attending the ophthalmology and cardiology outpatient clinics who had a medical history of more than 3 months of regular aspirin consumption were referred for esophagogastroduodenoscopy (EGD). Of the 90 patients referred for EGD, 44 were symptomatic (epigastric pain or dyspepsia) and were excluded from the study. The 46 asymptomatic patients included 22 men and 24 women of mean age 70 +/- 10 years (range, 36 to 87 years); 32% were current or former smokers. Mean daily aspirin dose was 129.34 +/- 76.61 mg. Only 24% were taking a gastroprotective agent. EGD revealed ulcer or erosions in 47.83% of the patients: erosive gastroduodenitis in 13 patients, gastric ulcer in 14, duodenal ulcer in 2, and gastric and duodenal ulcers in 2. Urease test for Helicobacter pylori infection was positive in 26%. Univariate and multivariate analysis revealed no factor other than aspirin predictive of a positive endoscopy. Minidose aspirin treatment is associated with a high prevalence of ulcerations of the stomach and duodenum. [ABSTRACT FROM AUTHOR]
- Published
- 2005
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