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https://www.readbyqxmd.com/read/28342593/taxocoenosis-of-epibenthic-dinoflagellates-in-the-coastal-waters-of-the-northern-yucatan-peninsula-before-and-after-the-harmful-algal-bloom-event-in-2011-2012
#1
Ana C Aguilar-Trujillo, Yuri B Okolodkov, Jorge A Herrera-Silveira, Fany Del C Merino-Virgilio, Citlalli Galicia-García
Eutrophication causes the major impact in the coastal waters of the state of Yucatan. In general, loss of water quality and biological communities and massive development of toxic microorganisms are some of the consequences of this phenomenon. To reveal changes in species composition and cell abundance of the taxocoenosis of epibenthic dinoflagellates before and after a harmful algal bloom event in the water column that lasted about 150days (August-December 2011) in the Dzilam - San Crisanto area (northern Yucatan Peninsula, southeastern Gulf of Mexico) were the main objectives of the present study...
March 22, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28259824/endovascular-management-of-proximal-fixation-loss-using-parallel-stent-grafting-techniques-to-preserve-visceral-flow
#2
Adam Tanious, Mathew Wooster, Andrew Jung, Peter Nelson, Martin R Back, Murray Shames
INTRODUCTION: and Objectives: Proximal fixation loss following endovascular aortic aneurysm repair (EVAR) creates a clinical dilemma. Typically endovascular salvage requires adequate aortic neck below the renal arteries, in cases with no infrarenal neck proximal extension into the paravisceral aorta using parallel grafts provides an alternative to open graft explant. We present our experience at a tertiary care center with endovascular management of proximal fixation loss following EVAR using parallel stent grafting techniques to preserve renal and visceral branches...
March 1, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28247541/sea-lice-infestation-levels-decrease-with-deeper-snorkel-barriers-in-atlantic-salmon-sea-cages
#3
Frode Oppedal, Francisca Samsing, Tim Dempster, Daniel W Wright, Samantha Bui, Lars H Stien
BACKGROUND: Salmon lice (Lepeophtheirus salmonis) are the most important parasite of farmed salmon. Infective larvae position themselves in the upper part of the water column to increase encounter probabilities with potential hosts. Previous studies have shown that a 'snorkel' sea-cage technology protects salmon from infection in surface waters. We tested whether deep snorkels would more effectively reduce lice infestation than shallow snorkels and still uphold adequate conditions for the fish...
March 1, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28242400/endovascular-management-of-a-ruptured-aortic-arch-pseudoaneurysm-using-the-snorkel-technique-and-coil-embolization
#4
Tao Ma, Zhi-Hui Dong, Wei-Guo Fu, Bin Chen, Jun Hao Jiang, Yun Shi
We report a reoperation case of a ruptured infectious aortic arch pseudoaneurysm, which was stabilized with thoracic endovascular aortic repair (TEVAR) and snorkel bypass of the innominate artery (IA) and the left common carotid artery (LCCA). A 57-year old Chinese woman with multiple comorbidities and previous open repair for Stanford type A aortic dissection 5 years ago presented with a ruptured 10.7cm×7.3cm aortic arch pseudoaneurysm involving the origins of the LCCA and the left subclavian artery. The patient underwent emergent endovascular aortic repair with placement of a stent-grafts in both IA and LCA coursing parallel to the aortic arch endograft...
February 24, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28239356/sex-and-exercise-intensity-do-not-influence-oxygen-uptake-kinetics-in-submaximal-swimming
#5
Joana F Reis, Gregoire P Millet, Paula M Bruno, Veronica Vleck, Francisco B Alves
The aim of this study was to compare the oxygen uptake ([Formula: see text]) kinetics in front crawl between male and female swimmers at moderate and heavy intensity. We hypothesized that the time constant for the primary phase [Formula: see text] kinetics was faster in men than in women, for both intensities. Nineteen well trained swimmers (8 females mean ± SD; age 17.9 ± 3.5 years; mass 55.2 ± 3.6 kg; height 1.66 ± 0.05 m and 11 male 21.9 ± 2.8 years; 78.2 ± 11.1 kg; 1.81 ± 0.08 m) performed a discontinuous maximal incremental test and two 600-m square wave transitions for both moderate and heavy intensities to determine the [Formula: see text] kinetics parameters using mono- and bi-exponential models, respectively...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28238929/comparison-between-open-and-endovascular-repair-for-the-treatment-of-juxtarenal-abdominal-aortic-aneurysms-a-single-center-experience-with-midterm-results
#6
Koji Maeda, Takao Ohki, Yuji Kanaoka, Takeshi Baba, Kenjirou Kaneko, Kota Shukuzawa
PURPOSE: To evaluate the optimal treatment for juxtarenal abdominal aortic aneurysm (JAAA) we compared outcomes of open surgical repair (OSR) with endovascular aortic repair (EVAR) utilizing a variety of fenestrated and snorkel EVARs. METHODS: We evaluated overall survival, aneurysm-related death, re-intervention and renal impairment in 152 JAAAs retrospectively, excluding cases of aortic dissection and rupture. Cox models were used to assess survival and assessed postoperative dialysis rates following surgery...
February 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28238925/early-experience-with-snorkels-and-chimneys-for-expanding-the-indications-for-use-of-evar
#7
Mathew Wooster, Bruce Zwiebel, Martin Back, Murray Shames
OBJECTIVE: While fenestrated and branched devices for juxtarenal and parvisceral aneurysms are available worldwide, limited US availability has perpetuated widespread utilization of adjunctive techniques for the endovascular treatment of these aneurysms. The objective of the study is to report on the technical feasibility and short-term durability of parallel grafts for juxtarenal and paravisceral aneurysms. METHODS: We performed a retrospective review of a prospectively collected EVAR database, including all patients that underwent a parallel stent procedure...
February 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28167544/nanoliposomal-buparvaquone-immunomodulates-leishmania-l-infantum-infected-macrophages-and-is-highly-effective-in-murine-model
#8
Thais Alves da Costa-Silva, Andrés Jimenez Galisteo, José Angelo Lauletta Lindoso, Leandro R S Barbosa, Andre Gustavo Tempone
Visceral leishmaniasis (VL) is a fatal parasitic neglected disease affecting 1.5 million people worldwide. Based on the drug repositioning approach, the aim of this work was to investigate the in vitro immunomodulatory potential of buparvaquone (BPQ) and to stablish a safe regimen to evaluate the in vivo efficacy of BPQ entrapped into negatively charged nanoliposomes (BPQ-LP) in Leishmania (L.) infantum infected hamsters. Small angle X-ray scattering (SAXS), dynamic light scattering (DLS) and ζ-potential were applied in order to study the influence of BPQ on the liposome structure...
February 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28039527/individual-level-behavioral-responses-of-immature-green-turtles-to-snorkeler-disturbance
#9
Lucas P Griffin, Jacob W Brownscombe, Tyler O Gagné, Alexander D M Wilson, Steven J Cooke, Andy J Danylchuk
Despite many positive benefits of ecotourism, increased human encounters with wildlife may have detrimental effects on wild animals. As charismatic megafauna, nesting and foraging sea turtles are increasingly the focus of ecotourism activities. The purpose of our study was to quantify the behavioral responses of immature green turtles (Chelonia mydas) to disturbance by snorkelers, and to investigate whether turtles have individual-level responses to snorkeler disturbance. Using a standardized disturbance stimulus in the field, we recorded turtle behaviors pre- and post-disturbance by snorkelers...
December 30, 2016: Oecologia
https://www.readbyqxmd.com/read/28007883/evidence-for-amino-acid-snorkeling-from-a-high-resolution-in-vivo-analysis-of-fis1-tail-anchor-insertion-at-the-mitochondrial-outer-membrane
#10
Abdurrahman Keskin, Emel Akdoğan, Cory D Dunn
Proteins localized to mitochondria by a carboxyl-terminal tail anchor (TA) play roles in apoptosis, mitochondrial dynamics, and mitochondrial protein import. To reveal characteristics of TAs that may be important for mitochondrial targeting, we focused our attention upon the TA of the Saccharomyces cerevisiae Fis1 protein. Specifically, we generated a library of Fis1p TA variants fused to the Gal4 transcription factor, then, using next-generation sequencing, revealed which Fis1p TA mutations inhibited membrane insertion and allowed Gal4p activity in the nucleus...
February 2017: Genetics
https://www.readbyqxmd.com/read/27966202/provisional-report-on-diving-related-fatalities-in-australian-waters-in-2011
#11
John Lippmann, Christopher Lawrence, Andrew Fock, Scott Jamieson, Richard Harris
INTRODUCTION: An individual case review of diving-related deaths reported as occurring in Australia in 2011 was conducted as part of the DAN Asia-Pacific dive fatality reporting project. METHOD: The case studies were compiled using reports from witnesses, the police and coroners. In each case, the particular circumstances of the accident and, where available, details from the post-mortem examination are provided. A chain of events analysis was conducted for each case...
December 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27929375/implications-of-the-differing-roles-of-the-%C3%AE-1-and-%C3%AE-3-transmembrane-and-cytoplasmic-domains-for-integrin-function
#12
Zhenwei Lu, Sijo Mathew, Jiang Chen, Arina Hadziselimovic, Riya Palamuttam, Billy G Hudson, Reinhard Fässler, Ambra Pozzi, Charles R Sanders, Roy Zent
Integrins are transmembrane receptors composed of α and β subunits. Although most integrins contain β1, canonical activation mechanisms are based on studies of the platelet integrin, αIIbβ3. Its inactive conformation is characterized by the association of the αIIb transmembrane and cytosolic domain (TM/CT) with a tilted β3 TM/CT that leads to activation when disrupted. We show significant structural differences between β1 and β3 TM/CT in bicelles. Moreover, the 'snorkeling' lysine at the TM/CT interface of β subunits, previously proposed to regulate αIIbβ3 activation by ion pairing with nearby lipids, plays opposite roles in β1 and β3 integrin function and in neither case is responsible for TM tilt...
December 8, 2016: ELife
https://www.readbyqxmd.com/read/27863770/chimney-periscope-or-snorkel-technique-to-relieve-dysphagia
#13
EDITORIAL
Himanshu J Patel
No abstract text is available yet for this article.
October 24, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27823593/snorkel-endovascular-abdominal-aortic-aneurysm-repair-versus-fenestrated-endovascular-aneurysm-repair-is-it-a-competition
#14
REVIEW
Adam Tanious, Jason T Lee, Murray Shames
The endovascular treatment of juxtarenal abdominal aortic aneurysm (AAA) can be performed by either a standard endovascular stent graft with additional snorkle grafts to aorta branches (snorkel endovascular aneurysm repair) or implantation of a fenestrated stent graft (fenestrated endovascular aneurysm repair). While many vascular surgeons consider snorkel endovascular aneurysm repair and fenestrated endovascular aneurysm repair to be competing techniques or alternate strategies, published procedural outcomes suggest more complementary roles...
March 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27811648/a-new-shallow-water-species-of-artemisina-vosmaer-1885-microcionidae-demospongiae-porifera-from-northeastern-brazil
#15
Thaynã Cavalcanti, George Garcia Santos, Eduardo Hajdu, Ulisses Pinheiro
Artemisina is a microcionid characterized by lacking a distinctive choanosomal skeleton or definite spongin fibres, lacking also echinating spicules, and with a nearly radial ectosomal skeleton (Hooper 2002). The genus currently has 19 valid species, six of which are recorded from the Atlantic Ocean (Van Soest et al. 2016): A. erecta Topsent, 1904, A. incrustans van Soest et al., 2013, A. melana van Soest, 1984, A. melanoides van Soest et al., 2013, A. transiens Topsent, 1890 and A. vulcani Lévi, 1963. The present study describes a new species of Artemisina from Northeastern Brazil...
November 3, 2016: Zootaxa
https://www.readbyqxmd.com/read/27703862/reef-scale-trends-in-florida-acropora-spp-abundance-and-the-effects-of-population-enhancement
#16
Margaret W Miller, Katryna Kerr, Dana E Williams
Since the listing of Acropora palmata and A. cervicornis under the US Endangered Species Act in 2006, increasing investments have been made in propagation of listed corals (primarily A. cervicornis, A. palmata to a much lesser extent) in offshore coral nurseries and outplanting cultured fragments to reef habitats. This investment is superimposed over a spatiotemporal patchwork of ongoing disturbances (especially storms, thermal bleaching, and disease) as well as the potential for natural population recovery...
2016: PeerJ
https://www.readbyqxmd.com/read/27601675/energetics-of-side-chain-snorkeling-in-transmembrane-helices-probed-by-nonproteinogenic-amino-acids
#17
Karin Öjemalm, Takashi Higuchi, Patricia Lara, Erik Lindahl, Hiroaki Suga, Gunnar von Heijne
Cotranslational translocon-mediated insertion of membrane proteins into the endoplasmic reticulum is a key process in membrane protein biogenesis. Although the mechanism is understood in outline, quantitative data on the energetics of the process is scarce. Here, we have measured the effect on membrane integration efficiency of nonproteinogenic analogs of the positively charged amino acids arginine and lysine incorporated into model transmembrane segments. We provide estimates of the influence on the apparent free energy of membrane integration (ΔGapp) of "snorkeling" of charged amino acids toward the lipid-water interface, and of charge neutralization...
September 20, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27566806/novel-endovascular-procedures-and-new-developments-in-aortic-surgery
#18
S W K Cheng
Endovascular repair has evolved to become a viable mainstream treatment for aortic pathology in both acute and elective settings. As technology advanced, traditional anatomical barriers were progressively tackled using new devices and novel procedures, and there are now multiple options available to the vascular surgeon. In the abdominal aorta, advances in endovascular aneurysm repair have been in the treatment of hostile aortic necks using new sealing concepts and ancillary procedures, and in branch preservation using fenestrations and snorkels...
September 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27547521/artificial-reefs-and-marine-protected-areas-a-study-in-willingness-to-pay-to-access-folkestone-marine-reserve-barbados-west-indies
#19
Anne E Kirkbride-Smith, Philip M Wheeler, Magnus L Johnson
Artificial reefs in marine protected areas provide additional habitat for biodiversity viewing, and therefore may offer an innovative management solution for managing for coral reef recovery and resilience. Marine park user fees can generate revenue to help manage and maintain natural and artificial reefs. Using a stated preference survey, this study investigates the present consumer surplus associated with visitor use of a marine protected area in Barbados. Two hypothetical markets were presented to differentiate between respondents use values of either: (a) natural reefs within the marine reserve or (b) artificial reef habitat for recreational enhancement...
2016: PeerJ
https://www.readbyqxmd.com/read/27499443/chimneys-and-sandwiches-for-endovascular-arch-repair-in-patients-with-marfan-syndrome-are-we-snorkeling-in-cloudy-waters
#20
EDITORIAL
Maral Ouzounian, Francois Dagenais
No abstract text is available yet for this article.
October 2016: Journal of Thoracic and Cardiovascular Surgery
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