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https://www.readbyqxmd.com/read/28821782/rapid-dwarfing-of-an-insular-mammal-the-feral-cattle-of-amsterdam-island
#1
Roberto Rozzi, Mark V Lomolino
The island rule describes a graded trend in insular populations of vertebrates from gigantism in small species to dwarfism in large species. The dwarfing of large mammals on islands has been observed both in the present fauna and in the fossil record. Elephants, hippopotami, deer, and other species became dwarfed on islands scattered all over the world, from the Mediterranean Sea to Indonesia, from the Eastern to Western Pacific Ocean, from the Caribbean to Canary Islands. The most rapid and well documented cases of island dwarfing known thus far took place over thousands of years...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821186/molecular-population-genetics-of-the-northern-elephant-seal-mirounga-angustirostris
#2
Alicia Abadía-Cardoso, Nelson B Freimer, Kristy Deiner, John Carlos Garza
The northern elephant seal, Mirounga angustirostris, was heavily hunted and declared extinct in the 19th century. However, a colony remained on remote Guadalupe Island, Mexico and the species has since repopulated most of its historical distribution. Here, we present a comprehensive evaluation of genetic variation in the species. First, we assess the effect of the demographic bottleneck on microsatellite variability and compare it with that found in other pinnipeds, demonstrating levels of variation similar to that in species that continue to be threatened with extinction...
September 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28814926/wuchereria-bancrofti-infection-at-four-primary-schools-and-surrounding-communities-with-no-previous-blood-surveys-in-northern-uganda-the-prevalence-after-mass-drug-administrations-and-a-report-on-suspected-non-filarial-endemic-elephantiasis
#3
Emmanuel Igwaro Odongo-Aginya, Alex Olia, Kilama Justin Luwa, Eiji Nagayasu, Anna Mary Auma, Geoffrey Egitat, Gerald Mwesigwa, Yoshitaka Ogino, Eisaku Kimura, Toshihiro Horii
BACKGROUND: A prevalence study of Wuchereria bancrofti infection was carried out in 2014 at 4 study sites in northern Uganda using antigen and microfilaria tests. Each study site consists of a primary school and surrounding communities. These sites are inside the filariasis endemic area and have been covered by mass drug administration under the national elimination programme. However, no prevalence study had been conducted there before the present study. Without information on past and present endemicity levels, our study was meant to be an independent third-party investigation to know the latest filariasis situation...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28813932/quantifying-infant-physical-interactions-using-sensorized-toys-in-a-natural-play-environment
#4
Vatsala Goyal, Wilson Torres, Roshan Rai, Frances Shofer, Daniel Bogen, Phillip Bryant, Laura Prosser, Michelle J Johnson
Infants with developmental delays must be detected early in their development to minimize the progression of motor and neurological impairments. Our objective is to quantify how sensorized toys in a natural play environment can promote infant-toy physical interactions. We created a hanging elephant toy, equipped with an inertial measurement unit (IMU), a pressure transducer, and multiple feedback sensors, to be a hand-grasping toy. We used a 3 DoF robotic model with inputs from the IMU to calculate multiple kinematic metrics and an equation to calculate haptic metrics from the pressure transducer...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813169/the-elephant-in-the-room
#5
Joan E Dodgson
No abstract text is available yet for this article.
August 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28813094/fatty-acid-profile-in-vertical-strata-of-elephant-grass-subjected-to-intermittent-stocking
#6
Kamila M Dias, Daniel Schmitt, Giselle R Rodolfo, Francisco C Deschamps, Guilherme N Camargo, Raphael S Pereira, André F Sbrissia
The milk and meat from animals with a pasture-based diet have higher proportions of CLA and C18:3 and lower omega-6:omega-3 ratios than products from animals with diets based on corn silage and concentrate. However, most of the published studies have evaluated fatty acid profiles in temperate climate grasses and the literature with tropical grasses is scarce. Thus, the aim of this study was to evaluate the morphological and fatty acid compositions in the vertical strata of elephant grass (Pennisetum purpureum Schum...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28812848/the-elephants-in-the-room-sex-hiv-and-lgbt-populations-in-mena-intersectionality-in-lebanon-comment-on-improving-the-quality-and-quantity-of-hiv-data-in-the-middle-east-and-north-africa-key-challenges-and-ways-forward
#7
Rachel L Kaplan, Cynthia El Khoury
In response to this insightful editorial, we wish to provide commentary that seeks to highlight recent successes and illuminate the often unspoken hurdles at the intersections of culture, politics, and taboo. We focus on sexual transmission and draw examples from Lebanon, where the pursuit of data in quality and quantity is teaching us lessons about the way forward and where we are experiencing many of the challenges referenced in the editorial such as discrepancies between national statistics and rates derived via research as well as the impact of protracted political conflict and displacement...
December 4, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28810710/testing-convergent-evolution-in-auditory-processing-genes-between-echolocating-mammals-and-the-aye-aye-a-percussive-foraging-primate
#8
Richard J Bankoff, Michael Jerjos, Baily Hohman, M Elise Lauterbur, Logan Kistler, George H Perry
Several taxonomically distinct mammalian groups-certain microbats and cetaceans (e.g., dolphins)-share both morphological adaptations related to echolocation behavior and strong signatures of convergent evolution at the amino acid level across seven genes related to auditory processing. Aye-ayes (Daubentonia madagascariensis) are nocturnal lemurs with a specialized auditory processing system. Aye-ayes tap rapidly along the surfaces of trees, listening to reverberations to identify the mines of wood-boring insect larvae; this behavior has been hypothesized to functionally mimic echolocation...
July 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28797584/long-term-outcomes-of-frozen-elephant-trunk-for-type-a-aortic-dissection-in-patients-with-marfan-syndrome
#9
Wei-Guo Ma, Wei Zhang, Jun-Ming Zhu, Bulat A Ziganshin, Ai-Hua Zhi, Jun Zheng, Yong-Min Liu, John A Elefteriades, Li-Zhong Sun
OBJECTIVE: The use of the frozen elephant trunk (FET) technique for repair of type A aortic dissection (TAAD) in Marfan syndrome (MFS) is controversial. We seek to evaluate the efficacy of FET and total arch replacement (TAR) for TAAD in patients with MFS. METHODS: The early and long-term outcomes were analyzed for 106 patients with MFS (mean age, 34.5 ± 9.7 years) undergoing FET + TAR for TAAD. RESULTS: Operative mortality was 6.6% (7 of 106)...
June 16, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28797283/incident-gout-and-erectile-dysfunction-is-hyperuricaemia-the-elephant-in-the-room
#10
EDITORIAL
Abhishek Abhishek, Michael Doherty
The first prospective population-based study to examine risk of erectile dysfunction in men with gout in the western world has been published. It reports that following their first diagnosis of gout, men have a 31% higher risk of erectile dysfunction than matched controls, although the absolute increase in risk is small. Of interest, the incidence of erectile dysfunction reported in this study is tenfold higher than those reported in nation-wide cohort studies from Taiwan. There is a need for further prospective cohort studies to examine the possible mechanistic association between gout, hyperuricaemia and erectile dysfunction...
August 10, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28782534/variation-in-adrenal-and-thyroid-hormones-with-life-history-stage-in-juvenile-northern-elephant-seals-mirounga-angustirostris
#11
J A Jelincic, M S Tift, D S Houser, D E Crocker
The classical approach to quantifying the impact of stressors on wildlife is through characterization of hormones associated with the generalized stress response. However, interpretation of hormone data can be difficult due to the range of natural variation within a species and potential confounds of individual and life-history variables. Blood adrenal and thyroid hormones were measured in 144 chemically immobilized yearling northern elephant seals (Mirounga angustirostris) to characterize variation between sexes and across semiannual haul-outs...
August 3, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28780362/predictors-of-prolonged-mechanical-ventilation-in-adults-after-acute-type-a-aortic-dissection-repair
#12
Mu Jin, Wei-Guo Ma, Shiyao Liu, Junming Zhu, Lizhong Sun, Jiakai Lu, Weiping Cheng
OBJECTIVES: Prolonged mechanical ventilation (PMV) after surgical repair of acute type-A aortic dissection (ATAAD) is associated with an increased risk for mortality and morbidity. The goal of this study was to evaluate the influence of PMV on early and late outcomes and to identify the risk factors for PMV after ATAAD repair. DESIGN, SETTING, AND PARTICIPANTS: This study was a retrospective analysis of prospectively collected data, which resulted from a prior clinical trial...
March 28, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28775252/conflict-between-conservation-and-development-cash-forest-encroachment-in-asian-elephant-distributions
#13
Peng Liu, Hui Wen, Franziska K Harich, Changhuan He, Lanxin Wang, Xianming Guo, Jianwei Zhao, Aidong Luo, Hongpei Yang, Xiao Sun, Yang Yu, Shaobo Zheng, Jing Guo, Li Li, Li Zhang
Over the last 4 decades, China has undergone major economic development, resulting in considerable impacts on its wildlife populations and habitats. It is essential to quantify the conflict between development and conservation to assist with policy-making because forestry policies and market trends affected indirectly the distribution of Asian elephants. Here, we mapped the historical distribution of elephants versus human land use. Elephant distributions appear to occur in unbroken natural forests only. However, over the 40-year period, the distribution ranges have become smaller and fragmented, with natural forest area also declining by 16%...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28767049/learning-dynamic-models-for-open-loop-predictive-control-of-soft-robotic-manipulators
#14
Thomas George Thuruthel, Egidio Falotico, Federico Renda, Cecilia Laschi
The soft capabilities of biological appendages like the arms of Octopus Vulgaris and Elephant trunk have inspired roboticists to develop their robotic equivalents. Although there have been considerable efforts to replicate their morphology and behaviour patterns, we are still lagging behind in replicating the dexterity and efficiency of these biological systems. This is mostly due to the lack of development and application of dynamic controllers on these robots which could exploit the morphological properties that a soft bodied manipulator possesses...
August 2, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28765810/the-diversity-and-impact-of-hookworm-infections-in-wildlife
#15
REVIEW
Mauricio Seguel, Nicole Gottdenker
Hookworms are blood-feeding nematodes that parasitize the alimentary system of mammals. Despite their high pathogenic potential, little is known about their diversity and impact in wildlife populations. We conducted a systematic review of the literature on hookworm infections of wildlife and analyzed 218 studies qualitative and quantitatively. At least 68 hookworm species have been described in 9 orders, 24 families, and 111 species of wild mammals. Black bears, red foxes, and bobcats harbored the highest diversity of hookworm species and Ancylostoma pluridentatum, A...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28765235/letter-to-the-editor-auc-for-v-q-imaging-in-pulmonary-embolism-the-elephant-in-the-room-planar-or-spect-v-q
#16
Pierre-Yves Le Roux, Pierre-Yves Salaun
No abstract text is available yet for this article.
August 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28760465/elective-aortic-arch-repair-factors-influencing-neurologic-outcome-in-791-patients
#17
Mariano Cefarelli, Giacomo Murana, Giuseppina G Surace, Sebastiano Castrovinci, Giuliano Jafrancesco, Johannes Christiaan Kelder, Patrick Klein, Uday Sonker, Wim J Morshuis, Robin H Heijmen
BACKGROUND: The aim of this study was to determine perioperative factors influencing neurologic outcome in a single-center cohort of patients undergoing elective aortic arch operations. METHODS: From January 2005 to June 2015, 791 consecutive patients received open aortic arch operations with either antegrade selective cerebral perfusion (ASCP) (636 patients [80.4%]) or deep hypothermic circulatory arrest (DHCA) (155 patients [19.6%]). Main indications were degenerative aneurysm (85%) and chronic postdissection aneurysm (9...
July 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28759544/minimally-invasive-access-aortic-arch-surgery
#18
Nora Goebel, Daniel Bonte, Schahriar Salehi-Gilani, Ragi Nagib, Adrian Ursulescu, Ulrich F W Franke
OBJECTIVE: Median sternotomy is still the standard approach for aortic arch surgery. Minimally invasive techniques promise faster recovery with shorter hospital stay due to thoracic stability, reduced pain, and superior cosmetic results. However, safety is a concern in complex aortic surgery. The aim of our study was to demonstrate that aortic arch surgery via partial upper sternotomy is viable, safe, and equivalent to standard procedure both in terms of its safety and the risk of major adverse cardiac and cerebrovascular events...
July 28, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28758558/acute-debakey-type-i-dissection-repair-using-frozen-elephant-trunk-the-cleveland-clinic-technique
#19
Muhammad Aftab, Ryan Plichta, Eric E Roselli
Over the past 3 decades, the standard surgical management for acute DeBakey type I aortic dissection has not significantly changed. Most patients undergo ascending aortic replacement with an interposition graft under hypothermic circulatory arrest with selective root replacement. Nevertheless, with the improvement in overall patient care, acute surgical outcomes continue to improve. The frozen elephant trunk (FET) technique was introduced as a modification to conventional elephant trunk to treat extensive degenerative and chronic dissecting aneurysms involving the aortic arch and the proximal descending aorta...
September 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28757815/insulin-induces-a-shift-in-lipid-and-primary-carbon-metabolites-in-a-model-of-fasting-induced-insulin-resistance
#20
Keedrian I Olmstead, Michael R La Frano, Johannes Fahrmann, Dmitry Grapov, Jose A Viscarra, John W Newman, Oliver Fiehn, Daniel E Crocker, Fabian V Filipp, Rudy M Ortiz
INTRODUCTION: Prolonged fasting in northern elephant seals (NES) is characterized by a reliance on lipid metabolism, conservation of protein, and reduced plasma insulin. During early fasting, glucose infusion previously reduced plasma free fatty acids (FFA); however, during late-fasting, it induced an atypical elevation in FFA despite comparable increases in insulin during both periods suggestive of a dynamic shift in tissue responsiveness to glucose-stimulated insulin secretion. OBJECTIVE: To better assess the contribution of insulin to this fasting-associated shift in substrate metabolism...
May 2017: Metabolomics: Official Journal of the Metabolomic Society
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