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https://www.readbyqxmd.com/read/28653524/-total-hip-arthroplasty-history-and-perspective-of-an-iconic-surgerical-intervention
#1
S Koulischer, H Jennart, D Zorman
With nearly 2 million implants placed annually, total hip arthroplasty is one of the most frequently performed surgerical procedure. A historical review of this intervention reminds us of the times when surgery was done by barber, before the first attempts of interposition arthroplasty. It is only in 1970 that Sir John Charnley lay the foundations of modern arthroplasty. The pharmaceutical industry, by sharing this lucrative market of $ 5 billion annual revenue, is now playing a major role in the development of the next generation of implants...
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/28649466/the-venice-specimen-of-ouranosaurus-nigeriensis-dinosauria-ornithopoda
#2
Filippo Bertozzo, Fabio Marco Dalla Vecchia, Matteo Fabbri
Ouranosaurus nigeriensis is an iconic African dinosaur taxon that has been described on the basis of two nearly complete skeletons from the Lower Cretaceous Gadoufaoua locality of the Ténéré desert in Niger. The entire holotype and a few bones attributed to the paratype formed the basis of the original description by Taquet (1976). A mounted skeleton that appears to correspond to O. nigeriensis has been on public display since 1975, exhibited at the Natural History Museum of Venice. It was never explicitly reported whether the Venice specimen represents a paratype and therefore, the second nearly complete skeleton reported in literature or a third unreported skeleton...
2017: PeerJ
https://www.readbyqxmd.com/read/28641231/association-between-timing-of-intubation-and-outcome-in-critically-ill-patients-a-secondary-analysis-of-the-icon-audit
#3
Philippe R Bauer, Ognjen Gajic, Rahul Nanchal, Rahul Kashyap, Ignacio Martin-Loeches, Yasser Sakr, Stephan M Jakob, Bruno François, Xavier Wittebole, Richard G Wunderink, Jean-Louis Vincent
PURPOSE: The optimal timing of endotracheal intubation in critically ill patients requiring invasive mechanical ventilation remains undefined. MATERIAL AND METHODS: In a secondary analysis of the large, prospective ICON database, we used a piecewise proportional hazards model to compare outcomes in patients who underwent intubation early (within two days after intensive care unit [ICU] admission) or later. RESULTS: After excluding 5340 patients already intubated on admission or with therapeutic limitation, 4729 patients were analyzed, of whom 4074 never underwent intubation...
June 16, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28641078/signal-dimensionality-and-the-emergence-of-combinatorial-structure
#4
Hannah Little, Kerem Eryılmaz, Bart de Boer
In language, a small number of meaningless building blocks can be combined into an unlimited set of meaningful utterances. This is known as combinatorial structure. One hypothesis for the initial emergence of combinatorial structure in language is that recombining elements of signals solves the problem of overcrowding in a signal space. Another hypothesis is that iconicity may impede the emergence of combinatorial structure. However, how these two hypotheses relate to each other is not often discussed. In this paper, we explore how signal space dimensionality relates to both overcrowding in the signal space and iconicity...
June 19, 2017: Cognition
https://www.readbyqxmd.com/read/28637254/phylogeography-of-lionfishes-pterois-indicate-taxonomic-over-splitting-and-hybrid-origin-of-the-invasive-pterois-volitans
#5
Christie L Wilcox, Hiroyuki Motomura, Mizuki Matsunuma, Brian W Bowen
The lionfish is an iconic marine fish, and recently renowned for a disastrous introduction into the West Atlantic. Genetic surveys of the putative invaders (Pterois volitans and P. miles) in their natural Indo-Pacific range can illuminate both topics. Previous research indicated that P. volitans and P. miles are sister species that hybridize in the invasive range, but hybridization in the native range is unknown. Here we apply mtDNA COI and two nuclear introns (S7 RP1 and Gpd2) from 229 lionfish including the two invaders and two closely-related taxa (44 P...
June 16, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28631572/endoplasmic-reticulum-stress-could-induce-autophagy-and-apoptosis-and-enhance-chemotherapy-sensitivity-in-human-esophageal-cancer-ec9706-cells-by-mediating-pi3k-akt-mtor-signaling-pathway
#6
Fang Zhou, Yan-Hua Li, Jian-Jun Wang, Jia Pan, Hong Lu
The study was designed to explore the mechanism of tunicamycin-induced endoplasmic reticulum stress in human esophageal cancer EC9706 cells and EC109 cells, as well as its effects on cell autophagy, apoptosis, and chemoresistance. Tunicamycin-induced endoplasmic reticulum stress model was established in EC9706 and EC109 cell lines. Western blotting was employed to detect the expression of endoplasmic reticulum stress iconic protein GRP78. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to evaluate the effect of different cisplatin and tunicamycin concentrations on survival rate of EC9706 cells and EC109 cells...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28630330/annual-mass-drownings-of-the-serengeti-wildebeest-migration-influence-nutrient-cycling-and-storage-in-the-mara-river
#7
Amanda L Subalusky, Christopher L Dutton, Emma J Rosi, David M Post
The annual migration of ∼1.2 million wildebeest (Connochaetes taurinus) through the Serengeti Mara Ecosystem is the largest remaining overland migration in the world. One of the most iconic portions of their migration is crossing of the Mara River, during which thousands drown annually. These mass drownings have been noted, but their frequency, size, and impact on aquatic ecosystems have not been quantified. Here, we estimate the frequency and size of mass drownings in the Mara River and model the fate of carcass nutrients through the river ecosystem...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28628966/the-inkblots-hermann-rorschach-his-iconic-test-and-the-power-of-seeing-by-damion-searls
#8
Aaron H Esman
No abstract text is available yet for this article.
April 2017: Psychoanalytic Quarterly
https://www.readbyqxmd.com/read/28627011/when-gesture-becomes-analogy
#9
Kensy Cooperrider, Susan Goldin-Meadow
Analogy researchers do not often examine gesture, and gesture researchers do not often borrow ideas from the study of analogy. One borrowable idea from the world of analogy is the importance of distinguishing between attributes and relations. Gentner (, ) observed that some metaphors highlight attributes and others highlight relations, and called the latter analogies. Mirroring this logic, we observe that some metaphoric gestures represent attributes and others represent relations, and propose to call the latter analogical gestures...
June 18, 2017: Topics in Cognitive Science
https://www.readbyqxmd.com/read/28621326/resin-infiltration-of-deproteinised-natural-occlusal-subsurface-lesions-improves-initial-quality-of-fissure-sealing
#10
Andrej M Kielbassa, Ina Ulrich, Rita Schmidl, Christoph Schüller, Wilhelm Frank, Vanessa D Werth
The aim of this ex vivo study was to evaluate the infiltration capability and rate of microleakage of a low-viscous resin infiltrant combined with a flowable composite resin (RI/CR) when used with deproteinised and etched occlusal subsurface lesions (International Caries Detection and Assessment System code 2). This combined treatment procedure was compared with the exclusive use of flowable composite resin (CR) for fissure sealing. Twenty premolars and 20 molars revealing non-cavitated occlusal carious lesions were randomly divided into two groups and were meticulously cleaned and deproteinised using NaOCl (2%)...
June 16, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28617636/a-sea-scorpion-s-strike-new-evidence-of-extreme-lateral-flexibility-in-the-opisthosoma-of-eurypterids
#11
W Scott Persons, John Acorn
Among the largest and most abundant aquatic predators during much of the early evolution of vertebrates, eurypterids have long been an iconic and intensely studied group of Paleozoic arthropods. We report a new specimen of the eurypterid Slimonia acuminata, which includes a fully articulated series of tail (postabdominal and telsonal) segments preserved in a tight lateral curve. Such a high degree of apparent lateral tail flexibility has not been previously recognized in eurypterids. From the perspective of hydrodynamics, the dorsoventrally flattened body plan of eurypterids would have limited the effectiveness of lateral tail motion as a means of propulsion...
July 2017: American Naturalist
https://www.readbyqxmd.com/read/28614397/what-was-the-population-of-great-zimbabwe-ce1000-1800
#12
Shadreck Chirikure, Thomas Moultrie, Foreman Bandama, Collett Dandara, Munyaradzi Manyanga
The World Heritage Site of Great Zimbabwe is one of the most iconic and largest archaeological settlements in Africa. It was the hub of direct and indirect trade which internally connected various areas of southern Africa, and externally linked them with East Africa and the Near and Far East. Archaeologists believe that at its peak, Great Zimbabwe had a fully urban population of 20,000 people concentrated in approximately 2.9 square kilometres (40 percent of 720 ha). This translates to a population density of 6,897, which is comparable with that of some of the most populous regions of the world in the 21st century...
2017: PloS One
https://www.readbyqxmd.com/read/28598912/cardiac-output-measurements-based-on-the-pulse-wave-transit-time-and-thoracic-impedance-exhibit-limited-agreement-with-thermodilution-method-during-orthotopic-liver-transplantation
#13
Aurora Magliocca, Emanuele Rezoagli, Thomas Anthony Anderson, Sara Maria Burns, Fumito Ichinose, Hovig Vatche Chitilian
BACKGROUND: Orthotopic liver transplantation (OLT) is characterized by significant intraoperative hemodynamic variability. Accurate and real-time cardiac output (CO) monitoring aids clinical decision making during OLT. The purpose of this study is to compare accuracy, precision, and trending ability of CO estimation obtained noninvasively using pulse wave transit time (estimated continuous cardiac output [esCCO; Nihon Kohden, Tokyo, Japan]) or thoracic bioimpedance (ICON; Osypka Medical GmbH, Berlin, Germany) to thermodilution cardiac output (TDCO) measured with a pulmonary artery catheter...
June 8, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28574734/the-recognizability-and-localizability-of-auditory-alarms-setting-global-medical-device-standards
#14
Judy Edworthy, Scott Reid, Siné McDougall, Jonathan Edworthy, Stephanie Hall, Danielle Bennett, James Khan, Ellen Pye
Objective Four sets of eight audible alarms matching the functions specified in IEC 60601-1-8 were designed using known principles from auditory cognition with the intention that they would be more recognizable and localizable than those currently specified in the standard. Background The audible alarms associated with IEC 60601-1-8, a global medical device standard, are known to be difficult to learn and retain, and there have been many calls to update them. There are known principles of design and cognition that might form the basis of more readily recognizable alarms...
June 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28571282/microhardness-and-penetration-of-artificial-white-spot-lesions-treated-with-resin-or-colloidal-silica-infiltration
#15
Jyothi Mandava, Y Shilpa Reddy, Sirisha Kantheti, Uma Chalasani, Ravi Chandra Ravi, Roopesh Borugadda, Ravi Kumar Konagala
INTRODUCTION: Infiltration of early enamel lesions by materials having remineralizing capacity seems to improve aesthetics and arrests caries progression. AIM: To evaluate and compare the surface microhardness and penetration depth of a low viscosity resin and colloidal silica nanoparticle infiltrates into artificially created white spot lesions. MATERIALS AND METHODS: Forty extracted human central incisors were embedded in acrylic resin blocks exposing the labial surfaces of the crowns...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571254/quantitative-analysis-of-remineralization-of-artificial-carious-lesions-with-commercially-available-newer-remineralizing-agents-using-sem-edx-in-vitro-study
#16
Zaheer Ahmed Shaik, Tanikonda Rambabu, Girija Sajjan, Madhu Varma, Kalyan Satish, Vijayalakshmi Bhupathi Raju, Sirisha Ganguru, Nagalkashmi Ventrapati
INTRODUCTION: The basic principle of remineralization is by advocating a biological or non-invasive approach rather than the surgical approach for early enamel lesions. There are relatively newer products available for remineralization, latest being the resin-infiltration technique, commercially available as Icon. AIM: The aim of the study was to evaluate the remineralizing potential of Casein Phosphopeptide-Amorphous Calcium Phosphate (CPP-ACP), Vantej and Icon by the quantitative evaluation of mineral gain...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28570105/understanding-consumer-interaction-on-instagram-the-role-of-satisfaction-hedonism-and-content-characteristics
#17
Luis V Casaló, Carlos Flavián, Sergio Ibáñez-Sánchez
The increasing relevance of Instagram and its growing adoption among top brands suggest an effort to better understand consumers' behaviors within this context. The purpose of this study is to examine the role of perceived hedonism and satisfaction in determining consumers' intentions to interact and their actual interaction behaviors (the number of likes, by tapping a heart icon, and comments) in a brand's official Instagram account. Also, we investigate the effect of consumer perceptions about the characteristics of the content generated in the account (perceived originality, quantity, and quality) on their perceived hedonism and satisfaction...
June 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28566354/disruptive-colouration-in-reef-fish-does-matching-the-background-reduce-predation-risk
#18
Genevieve A C Phillips, Martin J How, Julia E Lange, N Justin Marshall, Karen L Cheney
Animals use disruptive colouration to prevent detection or recognition by potential predators or prey. Highly contrasting elements within colour patterns, including vertical or horizontal bars, are thought to be effective at distracting attention away from body form and reducing detection likelihood. However, it is unclear whether such patterns need to be a good match to the spatial characteristics of the background to gain cryptic benefits. We tested this hypothesis using the iconic vertically barred humbug damselfish, Dascyllus aruanus (Linneaus 1758), a small reef fish that lives among the finger-like projections of branching coral colonies...
June 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28566222/tissue-specific-transcriptomic-profiling-provides-new-insights-into-the-reproductive-ecology-and-biology-of-the-iconic-seagrass-species-posidonia-oceanica
#19
Laura Entrambasaguas, Marlene Jahnke, Elio Biffali, Marco Borra, Remo Sanges, Lázaro Marín-Guirao, Gabriele Procaccini
Seagrasses form extensive meadows in shallow coastal waters and are among the world's most productive ecosystems. Seagrasses can produce both clonally and sexually, and flowering has long been considered infrequent, but important for maintaining genetically diverse stands. Here we investigate the molecular mechanisms involved in flowering of the seagrass Posidonia oceanica, an iconic species endemic to the Mediterranean. We generated a de novo transcriptome of this non-model species for leaf, male and female flower tissue of three individuals, and present molecular evidence for genes that may be involved in the flowering process and on the reproductive biology of the species...
May 26, 2017: Marine Genomics
https://www.readbyqxmd.com/read/28561549/editorial
#20
Peter G Robinson
It was 27 years ago, during my Masters that I was introduced to this journal, then edited by Peter James. He was one of a succession of icons of Dental Public Health to have filled this role including Denis O'Mullane, Martin Downer and until December, my colleague and friend Mike Lennon. Many of us have looked up to those pioneers with respect and reverence. The journal has always been the place to look for UK based research in DPH, and now it is fulfilling that purpose for on a European scale as well.
March 2017: Community Dental Health
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