39,830 results match your criteria Atlantic Geology[Journal]


Role of Macrocyclic Conformational Steering in a Kinetic Route toward Bielschowskysin.

J Am Chem Soc 2021 May 4. Epub 2021 May 4.

Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, Florida 33431, United States.

Macrocyclic furanobutenolide-derived cembranoids (FBCs) are the biosynthetic precursors to a wide variety of highly congested and oxygenated polycyclic (nor)diterpenes (e.g. plumarellide, verrillin, and bielschowskysin). Read More

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Current status (as of end of 2020) of marine alien species in Turkey.

PLoS One 2021 4;16(5):e0251086. Epub 2021 May 4.

Institute of Marine Sciences and Technology, Dokuz Eylül University, İnciraltı, İzmir, Turkey.

The 2020's update of marine alien species list from Turkey yielded a total of 539 species belonging to 18 taxonomic groups, 404 of which have become established in the region and 135 species are casual. A total of 185 new alien species have been added to the list since the previous update of 2011. The present compilation includes reports of an ascidian species (Rhodosoma turcicum) new to the marine fauna of Turkey and range extensions of six species. Read More

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When an Aging Spouse Has Dementia: Impact of a Home-Based Intervention on Marital Communication.

Issues Ment Health Nurs 2021 May 4:1-14. Epub 2021 May 4.

Christine E Lynn College of Nursing, Florida Atlantic University, Boca Raton, Florida, USA.

Researchers tested the impact of a 10-week intervention, (CARE), on misunderstandings and resolutions in marital communication between spouses affected by dementia. A single group, repeated-measures secondary analysis was used to analyze 65 transcribed dyadic conversations for misunderstandings, resolutions, number of caregiver and care receiver words over 10 sessions. Misunderstandings continued to occur over 10 weeks, but resolution of misunderstandings increased ( = 5. Read More

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The Hippiatric Texts from Ugarit.

Ann Med Hist 1942 Sep;4(5):406-408

Atlantic City, N.J.

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September 1942

Popular Medicine in Sasanian Babylonia.

Authors:
Maurice B Gordon

Ann Med Hist 1942 May;4(3):241-245

Atlantic City.

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Medicine among the Ancient Hebrews.

Ann Med Hist 1942 May;4(3):219-235

Atlantic City, N. J.

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Women with peripartum cardiomyopathy have normal ejection fraction, but abnormal systolic strain, during pregnancy.

ESC Heart Fail 2021 May 4. Epub 2021 May 4.

Division of Cardiology, Perelman Center for Advanced Medicine, University of Pennsylvania Perelman School of Medicine, 3400 Civic Center Boulevard, 2-East Pavilion, Philadelphia, PA, 19104, USA.

We report a case series of six women with peripartum cardiomyopathy (PPCM) who incidentally underwent echocardiography prior to the clinical presentation of PPCM. For comparison, we identified controls, matched 2:1 on age, race, body mass index, gestational age, and hypertensive disorder. Among the six cases, all were diagnosed with PPCM during the post-partum period. Read More

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A new species of pikeblenny (Blenniiformes: Chaenopsidae: Chaenopsis) from the Tropical Eastern Pacific, and a key to all species.

Authors:
Jose Tavera

J Fish Biol 2021 May 4. Epub 2021 May 4.

Departamento de Biología, Universidad del Valle, Cali, Colombia.

The genus Chaenopsis presently includes ten species, four in the eastern Pacific and six in the western Atlantic. Five individuals of an undescribed species of this genus were obtained at Gorgona Island in the eastern Pacific of Colombia, in depths between 3 to 5 m. This new species differs from all the Eastern Pacific species in an array of traits including meristic, coloration, and morphometric characters. Read More

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Loss of Increases Germ Cell Apoptosis but Is Still Compatible With Sperm Production in Atlantic Salmon ().

Front Cell Dev Biol 2021 16;9:657192. Epub 2021 Apr 16.

Institute of Marine Research, Research Group Reproduction and Developmental Biology, Bergen, Norway.

Entering meiosis strictly depends on () gene function in mammals. This gene is missing in a number of fish species, including medaka and zebrafish, but is present in the majority of fishes, including Atlantic salmon. Here, we have examined the effects of removing on male fertility in Atlantic salmon. Read More

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Meridional changes in the South Atlantic Subtropical Gyre during Heinrich Stadials.

Sci Rep 2021 May 3;11(1):9419. Epub 2021 May 3.

MARUM-Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany.

Subtropical ocean gyres play a key role in modulating the global climate system redistributing energy between low and high latitudes. A poleward displacement of the subtropical gyres has been observed over the last decades, but the lack of long-term monitoring data hinders an in-depth understanding of their dynamics. Paleoceanographic records offer the opportunity to identify meridional changes in the subtropical gyres and investigate their consequences to the climate system. Read More

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Outdoor green space exposure and brain health measures related to Alzheimer's disease: a rapid review.

Authors:
Lilah Besser

BMJ Open 2021 May 3;11(5):e043456. Epub 2021 May 3.

Institute for Human Health and Disease Intervention, Florida Atlantic University, Boca Raton, Florida, USA

Objectives: Summarise studies of outdoor green space exposure and brain health measures related to Alzheimer's disease and related disorders (ADRD), and determine scientific gaps for future research.

Design: Rapid review of primary research studies.

Methods And Outcomes: PubMed, Embase and Web of Science Core Collection were searched for articles meeting the criteria published on/before 13 February 2020. Read More

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Data augmentation for the classification of North Atlantic right whales upcalls.

J Acoust Soc Am 2021 Apr;149(4):2520

Institute for Big Data Analytics, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada.

Passive acoustic monitoring (PAM) is a useful technique for monitoring marine mammals. However, the quantity of data collected through PAM systems makes automated algorithms for detecting and classifying sounds essential. Deep learning algorithms have shown great promise in recent years, but their performance is limited by the lack of sufficient amounts of annotated data for training the algorithms. Read More

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Effects of Pacific Summer Water layer variations and ice cover on Beaufort Sea underwater sound ducting.

J Acoust Soc Am 2021 Apr;149(4):2117

Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA.

A one-year fixed-path observation of seasonally varying subsurface ducted sound propagation in the Beaufort Sea is presented. The ducted and surface-interacting sounds have different time behaviors. To understand this, a surface-forced computational model of the Chukchi and Beaufort Seas with ice cover is used to simulate local conditions, which are then used to computationally simulate sound propagation. Read More

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Evidence for non-Rayleigh characteristics in ship underwater acoustic signatures.

Authors:
Mark V Trevorrow

J Acoust Soc Am 2021 Apr;149(4):2270

Defence Research and Development Canada-Atlantic, P.O. Box 1012, Dartmouth, Nova Scotia B2Y 3Z7, Canada.

This work examines ship underwater acoustic signature amplitude statistics and statistical distributions and explores the hypothesis that ship signatures exhibit amplitude fluctuations that are different from Rayleigh-distributed ambient ocean noise. Signature measurements from a small oceanographic ship conducting a variety of maneuvers are examined, focusing on those conditions where propeller cavitation and broadband signal modulation occur, specifically during maximum speed runs and turning maneuvers. A key difference for a ship signature is the amplitude modulation generated by propeller cavitation, and this is found to be associated with super-Rayleigh signal characteristics. Read More

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Don't catch me if you can - Using cabled observatories as multidisciplinary platforms for marine fish community monitoring: An in situ case study combining Underwater Video and environmental DNA data.

Sci Total Environ 2021 Jun 2;773:145351. Epub 2021 Feb 2.

Institut de Ciencias del Mar (ICM-CSIC), Barcelona, Spain; Stazione Zoologica Anton Dohrn (SZN), Naples, Italy. Electronic address:

Cabled observatories are marine infrastructures equipped with biogeochemical and oceanographic sensors as well as High-Definition video and audio equipment, hence providing unprecedented opportunities to study marine biotic and abiotic components. Additionally, non-invasive monitoring approaches such as environmental DNA (eDNA) metabarcoding have further enhanced the ability to characterize marine life. Although the use of non-invasive tools beholds great potential for the sustainable monitoring of biodiversity and declining natural resources, such techniques are rarely used in parallel and understanding their limitations is challenging. Read More

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Fungi populate deep-sea coral gardens as well as marine sediments in the Irish Atlantic Ocean.

Environ Microbiol 2021 May 3. Epub 2021 May 3.

Regenerative Medicine Institute, School of Medicine, National University of Ireland Galway, H91TK33, Galway, Ireland.

Fungi populate deep Oceans in extreme habitats characterized by high hydrostatic pressure, low temperature and absence of sunlight. Marine fungi are potential major contributors to biogeochemical events, critical for marine communities and food web equilibrium under climate change conditions and a valuable source of novel extremozymes and small molecules. Despite their ecophysiological and biotechnological relevance, fungal deep-sea biodiversity has not yet been thoroughly characterized. Read More

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Mid-term outcomes of endovascular treatment and risk factors for recurrence in patients with Trans-Atlantic-Inter-Society II C/D femoropopliteal lesions.

Quant Imaging Med Surg 2021 May;11(5):2028-2039

Department of Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.

Background: The purpose of this study was to determine the efficacy of interventional endovascular treatment (EVT) and the risk factors for postoperative restenosis in patients with Trans-Atlantic Inter-Society Consensus (TASC) II C/D femoropopliteal lesions.

Methods: A total of 55 patients who received EVT for TASC II C/D femoropopliteal lesions (64 affected limbs) from October 2014 to September 2017 were examined. The mean lesion length was 19. Read More

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How US newspapers view the UK's NHS: a study in international lesson-drawing.

Soc Theory Health 2021 Apr 25:1-21. Epub 2021 Apr 25.

University of Roehampton, Roehampton Lane, London, SW15 5PH UK.

Healthcare on both sides of the Atlantic is a highly charged political and economic subject. This work considers US media coverage of the UK's National Health Service (NHS), an under-researched area. We assess the framing of the NHS in editorials, opinion and feature articles during the time of the Obama administration to show how media can perform the role of lesson-drawing, a theory adopted from public policy research. Read More

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The 2020 Summer Floods and 2020/21 Winter Extreme Cold Surges in China and the 2020 Typhoon Season in the Western North Pacific.

Adv Atmos Sci 2021 Apr 26:1-9. Epub 2021 Apr 26.

State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301 China.

China experienced significant flooding in the summer of 2020 and multiple extreme cold surges during the winter of 2020/21. Additionally, the 2020 typhoon season had below average activity with especially quiet activity during the first half of the season in the western North Pacific (WNP). Sea surface temperature changes in the Pacific, Indian, and Atlantic Oceans all contributed to the heavy rainfall in China, but the Atlantic and Indian Oceans seem to have played dominant roles. Read More

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Methyl acetate, a highly volatile floral semiochemical mediating specialized plant-beetle interactions.

Naturwissenschaften 2021 May 2;108(3):21. Epub 2021 May 2.

Programa de Pós-Graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Universidade Católica Dom Bosco, Campo Grande, 79117-900, Brazil.

Olfactory signaling is key to the reproductive biology of entomophilous palms. Both pollinating and specialized herbivorous insects are attracted to fragrance-emitting palm inflorescences that function as reliable food sources, as well as mating and oviposition sites. In the present study, we characterized the floral scent chemistry of the acuri palm (Attalea phalerata), assessing its role in the attraction of flower-visiting insects associated with this species over its natural distribution range. Read More

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Post-mortem storage conditions and cooking methods affect long-chain omega-3 fatty acid content in Atlantic mackerel (Scomber scombrus).

Food Chem 2021 Apr 20;359:129828. Epub 2021 Apr 20.

Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France.

Long-chain omega-3 fatty acids such as eicosapentaenoic (EPA) and docosahexaenoic acids (DHA) are health beneficial lipids found in high concentration in pelagic fishes, including Atlantic mackerel. While EPA and DHA are sensitive to oxidation during fish storage and processing, post-mortem degradation in the first hours following fish death is poorly documented. Here, we stored fish at two temperatures (2-4 °C and 18-20 °C) and monitored EPA + DHA content in dorsal fillet 6, 12 and 24 h after fish death and after cooking (grill or steam). Read More

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Modeling pollutant dispersion scenarios in high vessel-traffic areas of the Lower Amazon River.

Mar Pollut Bull 2021 Apr 29;168:112404. Epub 2021 Apr 29.

Production Engineering Department, Industrial and Metallurgical Engineering School of Volta Redonda, Federal Fluminense University, Av. dos Trabalhadores 420 - Sala C77 - Vila Sta. Cecília, 27255-125 Volta Redonda, RJ, Brazil. Electronic address:

Large ships are efficient in transporting oil and its derivatives. However, they can cause spills in the event of accidents. The aim of the study is to simulate oil dispersion processes in scenarios of likely accidents with ships traveling on sea routes interconnected with Amazonian ports and with the Atlantic Ocean. Read More

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Cannabis use disorder, anger, and violence in Iraq/Afghanistan-era veterans.

J Psychiatr Res 2021 Apr 22;138:375-379. Epub 2021 Apr 22.

Durham VA Health Care System, Durham, NC, USA; Duke University Medical Center, Durham, NC, USA; VA Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; VA Center for Health Services Research in Primary Care, Durham, NC, USA.

An association has been found between cannabis use disorder (CUD) and violence in several clinical populations, including veterans with posttraumatic stress disorder (PTSD), and there is evidence that CUD has been increasing among veterans since September 11, 2001. There is also evidence that some veterans may be attempting to self-medicate psychological problems including PTSD and aggression with cannabis, despite the lack of safety and efficacy data supporting this use. To date, however, the association between CUD and aggression has yet to be examined in a large, non-clinic sample of veterans. Read More

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G protein β5-ATM complexes drive acetaminophen-induced hepatotoxicity.

Redox Biol 2021 Apr 28;43:101965. Epub 2021 Apr 28.

Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India. Electronic address:

Excessive ingestion of the common analgesic acetaminophen (APAP) leads to severe hepatotoxicity. Here we identify G protein β5 (Gβ), elevated in livers from APAP overdose patients, as a critical regulator of cell death pathways and autophagic signaling in APAP-exposed liver. Liver-specific knockdown of Gβ in mice protected the liver from APAP-dependent fibrosis, cell loss, oxidative stress, and inflammation following either acute or chronic APAP administration. Read More

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Feeding strategy of pelagic fishes caught in aggregated schools and vulnerability to ingesting anthropogenic items in the western equatorial Atlantic Ocean.

Environ Pollut 2021 Mar 25;282:117021. Epub 2021 Mar 25.

Laboratório de Tecnologia e Oceanografia Pesqueira, Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal Rural do Semiárido, Av. Francisco Mota, 572. Bairro Pres. Costa e Silva, Mossoró, RN, Postal Box: 59625-900, Brazil. Electronic address:

The present study aims to assess the diet composition of five commercial pelagic fishes caught in aggregated schools in the western Atlantic, quantify plastic and anthropogenic items in stomach contents, and analyze the possible relationship between their diet composition and the occurrence of anthropogenic items. We collected 807 stomachs from tunas (Thunnus albacares, Thunnus obesus, and Katsuwonus pelamis) and tuna-like species (Coryphaena hippurus and Elagatis bipinnulata) targeted by fisheries around data buoys in the western tropical Atlantic between 2011 and 2017. We quantified items of an anthropogenic origin by calculating frequency of occurrence. Read More

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Bioaccumulation of mercury is equal between sexes but different by age in seabird (Sula leucogaster) population from southeast coast of Brazil.

Environ Pollut 2021 Apr 26;285:117222. Epub 2021 Apr 26.

Instituto de Biodiversidade e Sustentabilidade (NUPEM/UFRJ), Universidade Federal Do Rio de Janeiro, RJ, Brazil; Programa de Pós-graduação Em Ciências Ambientais e Conservação (PPG-CiAC), Universidade Federal Do Rio de Janeiro (UFRJ), Macaé, RJ, Brazil.

Since several seabird species have sexual size dimorphism, in which one sex is larger than the other, and may consume bigger prey, this size difference may affect the contamination concentration in the seabird's tissues depending on their sex and age. In this study, mercury contamination was investigated in brown booby (Sula leucogaster) adults and juveniles during their breeding season at the Santana Archipelago, on the southeast coast of Brazil. Two hypotheses were evaluated: 1. Read More

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Morphological and molecular characterization of Udonella brasiliensis n. sp. (Monogenoidea), an epibiont on Caligus sp. parasite of Ariidae from the southeastern coast of Brazil.

Parasitol Int 2021 Apr 28:102371. Epub 2021 Apr 28.

Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Rua Monteiro Lobato, 255, CEP 13083-862 Campinas, São Paulo, Brazil; Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Paulo (UNIFESP), Rua Professor Arthur Riedel, 275, Jardim Eldorado, CEP 09972-270, Diadema, São Paulo, Brazil.

The present study describes Udonella brasiliensis n. sp., an epibiont found on Caligus sp. Read More

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The transseptal puncture experience: Safety insights from FDA MAUDE database.

Catheter Cardiovasc Interv 2021 May 1. Epub 2021 May 1.

Division of Cardiology, Florida Atlantic University, Boca Raton, Florida, USA.

Background: There is a paucity of literature on safety and efficacy of various transseptal puncture (TSP) needles.

Objectives: To assess the reported mechanisms of failure, complications, and outcomes among the most frequently used transseptal needles in the United States.

Methods: We queried the Food and Drug Administration (FDA) Manufacturer and User Facility Device Experience (MAUDE) database between January 2011 and January 2021 for reports on the most commonly used transseptal needles: NRG (Baylis Medical, Montreal, Canada), and BRK (St. Read More

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When Can We Trust Real-World Data To Evaluate New Medical Treatments?

Clin Pharmacol Ther 2021 May 1. Epub 2021 May 1.

Verily Life Sciences and Google Health.

Concerns regarding both the limited generalizability and the slow pace of traditional randomized trials have led to calls for greater use of real-world evidence (RWE) in the evaluation of new treatments or products. RWE studies often rely on real-world data (RWD), including data extracted from healthcare records or data captured by mobile phones or other consumer devices. Global assessments of RWD sources are not helpful in assessing whether any specific RWD element is fit for any specific purpose. Read More

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