Letteratura scientifica selezionata sul tema "Long-term persistence"

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Articoli di riviste sul tema "Long-term persistence"

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Guiso, Luigi, Paola Sapienza e Luigi Zingales. "LONG-TERM PERSISTENCE". Journal of the European Economic Association 14, n. 6 (2 agosto 2016): 1401–36. http://dx.doi.org/10.1111/jeea.12177.

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Izquierdo, Ivan, Martin Cammarota e Jorge H. Medina. "Long-term memory persistence". Future Neurology 5, n. 6 (novembre 2010): 911–17. http://dx.doi.org/10.2217/fnl.10.60.

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Nail, Lillian M. "Long-term persistence of symptoms". Seminars in Oncology Nursing 17, n. 4 (novembre 2001): 249–54. http://dx.doi.org/10.1053/sonu.2001.27916.

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Abraham, Wickliffe C. "How long will long-term potentiation last?" Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 358, n. 1432 (29 aprile 2003): 735–44. http://dx.doi.org/10.1098/rstb.2002.1222.

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The paramount feature of long-term potentiation (LTP) as a memory mechanism is its characteristic persistence over time. Although the basic phenomenology of LTP persistence was established 30 years ago, new insights have emerged recently about the extent of LTP persistence and its regulation by activity and experience. Thus, it is now evident that LTP, at least in the dentate gyrus, can either be decremental, lasting from hours to weeks, or stable, lasting months or longer. Although mechanisms engaged during the induction of LTP regulate its subsequent persistence, the maintenance of LTP is also governed by activity patterns post-induction, whether induced experimentally or generated by experience. These new findings establish dentate gyrus LTP as a useful model system for studying the mechanisms governing the induction, maintenance and interference with long-term memory, including very long-term memory lasting months or longer. The challenge is to study LTP persistence in other brain areas, and to relate, if possible, the properties and regulation of LTP maintenance to these same properties of the information that is actually stored in those regions.
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Bailey, Craig H., Eric R. Kandel e Kausik Si. "The Persistence of Long-Term Memory". Neuron 44, n. 1 (settembre 2004): 49–57. http://dx.doi.org/10.1016/j.neuron.2004.09.017.

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Willerslev, Eske, Anders J. Hansen, Regin Rønn, Tina B. Brand, Ian Barnes, Carsten Wiuf, David Gilichinsky, David Mitchell e Alan Cooper. "Long-term persistence of bacterial DNA". Current Biology 14, n. 1 (gennaio 2004): R9—R10. http://dx.doi.org/10.1016/j.cub.2003.12.012.

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Ruzmaikin, Alexander, Joan Feynman e Paul Robinson. "Long-term persistence of solar activity". Solar Physics 152, n. 1 (giugno 1994): 313. http://dx.doi.org/10.1007/bf01473221.

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Ruzmaikin, Alexander, Joan Feynman e Paul Robinson. "Long-term persistence of solar activity". Solar Physics 149, n. 2 (febbraio 1994): 395–403. http://dx.doi.org/10.1007/bf00690625.

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Lindahl, Mikael, Mårten Palme, Sofia Sandgren Massih e Anna Sjögren. "Long-Term Intergenerational Persistence of Human Capital". Journal of Human Resources 50, n. 1 (2015): 1–33. http://dx.doi.org/10.3368/jhr.50.1.1.

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Morrison, Vicki A., Gary R. Johnson, Kenneth E. Schmader, Myron J. Levin, Jane H. Zhang, David J. Looney, Robert Betts et al. "Long-term Persistence of Zoster Vaccine Efficacy". Clinical Infectious Diseases 60, n. 6 (20 novembre 2014): 900–909. http://dx.doi.org/10.1093/cid/ciu918.

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Tesi sul tema "Long-term persistence"

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Valencia, Caicedo Felipe. "Three essays in long-term economic persistence". Doctoral thesis, Universitat Pompeu Fabra, 2015. http://hdl.handle.net/10803/297566.

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This dissertation investigates economic persistence in the Americas. The first chapter shows the positive long-term economic impact of the Guarani Jesuit Missions in South America. I find that municipalities in Argentina, Paraguay and Brazil with former missionary presence have higher educational and income levels today. Such enduring differences are consistent with cultural transmission mechanisms. The second chapter establishes the within country persistence of economic activity in the New World over the last half millennium. In particular, we show that high pre-colonial density areas tend to be denser today. Furthermore, we document that these historically prosperous areas also tend to have higher incomes today, largely due to agglomeration effects. The third and final chapter argues that differences in innovative capacity, captured by the density of engineers at the dawn of the Second Industrial Revolution, are important to explaining present income differences between Latin and North America, and within the United States
Esta disertación trata sobre persistencia económica en las Américas. El primer capítulo muestra el impacto positivo a largo plazo de las Misiones Jesuitas Guaraníes en Suramérica. Encuentra que las municipalidades en Argentina, Paraguay y Brasil que tuvieron presencia misionera tienen hoy mayores niveles de educación e ingreso. Estas diferencias son consistentes con mecanismos de transmisión cultural. El segundo capítulo establece la persistencia de la actividad económica en el Nuevo Mundo durante los últimos 500 años. Específicamente, demuestra que las áreas con mayor densidad de población pre-colonial son más densamente pobladas ahora. Además muestra que estas áreas históricamente prósperas también tienen mayores ingresos hoy, debido a efectos de aglomeración. El tercer y último capítulo argumenta que las diferencias en capacidad de innovación, medidas utilizando la densidad de ingenieros durante la Segunda Revolución Industrial, son importantes para explicar las diferencias de ingreso entre Latinoamérica y Norteamérica, así como dentro de los Estados Unidos.
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Thyer, Mark Andrew. "Modelling long-term persistence in hydrological time series". Diss., 2000, 2000. http://www.newcastle.edu.au/services/library/adt/public/adt-NNCU20020531.035349/index.html.

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McLaren, Jack. "Adult students in university : long-term persistence to degree-completion". Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/31101.

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Long-term persistence to degree completion by adult university students represents a different focus from most adult education participation research and higher education dropout research. Much of the research on adults in university has treated these adults as a new (non-traditional) group, despite evidence that many had been enrolled as traditional-age students. Samples limited to first-year students, part-time students, and students in special programs provide only a limited perspective on the whole population of adults in university. It was hypothesized that adults who had been in university as traditional-age students and returned later (Re-entry studenty) would be more persistent to degree completion than adults who had enrolled for the first time at age twenty-five or older (Adult Entry students). While the hypothesis was not clearly supported, differences between the two groups were discovered. Six hypotheses were generated from the literature on adult participation and on higher education dropouts. These were tested using bivariate analysis. The multivariate techniques of multiple regression and discriminant analysis were employed to examine differences between Re-entry students and Adult Entry students in persistence to degree completion. The most important variable affecting Re-entry-students' persistence was Grade Point Average; the most potent variable with Adult Entry students was work-related problems. With both groups, persistence was affected by satisfaction. Early-career mobility had an ambiguous effect; downward mobility in early career was associated with persistence by Adult Entry students; upward mobility correlated with persistence by Re-entry students. A new typology of adult student in higher education is suggested. First-time students—new students who have never previously been enrolled—are a high-risk group (prone to dropout), but those who persist initially may become more persistent than Re-entry students.
Education, Faculty of
Educational Studies (EDST), Department of
Graduate
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Strimas-Mackey, Matthew. "Accounting for long-term persistence of multiple species in systematic conservation planning". Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58572.

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Protected areas form the cornerstone of global efforts to conserve biodiversity. The goal of systematic conservation planning is to design protected area networks that secure the long term persistence of biodiversity. However, most current methods focus on maximizing the representation of species and don’t explicitly plan for the persistence of those species in the protected landscapes into the future. In this thesis, I present a new tool for systematic reserve design that optimizes the configuration of reserve networks to maximize persistence across multiple species. This method is based on metapopulation capacity, a relative, asymptotic metric of persistence derived from a spatially explicit metapopulation model. This metric requires few parameters to calculate, and incorporates the size and spatial configuration of reserves as well as species-specific dispersal dynamics among them. I demonstrate this method using a case study in Indonesian New Guinea with 114 terrestrial mammal species. Compared to Marxan, the most popular representation-based reserve design tool, my persistence-based method led to a 2.3-times increase in mean metapopulation capacity across all species. At the level of individual species, I identified two distinct groups: those that experienced significant benefits from the persistence-based approach and those for which the Marxan solution was nearly as good or slightly better. This thesis demonstrates that systematic reserve design can account for species persistence in an ecologically meaningful way, and that this approach can yield significant gains compared to traditional methods.
Science, Faculty of
Zoology, Department of
Graduate
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Suggs, Jessica Marie. "Long-term Changes in Synoptic-Scale Air Mass Persistence Across the United States". Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78705.

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From a climate dynamics perspective, air mass persistence reflects variability in the dynamic nature of the atmosphere. In this study, a historical analysis of synoptic air mass persistence across the continental United States is presented to portray spatial and temporal variability and trends in air mass residence times. Historical daily air mass calendars for 140 locations across the United States for the 60-year period 1955 through 2015 were extracted from the Spatial Synoptic Classification database. The data were stratified by season, and a historical climatology of seasonal air mass occurrence was created for each location. The historical daily air mass data were then translated into a record of residence time, or the length of consecutive days that a synoptic air mass type was in place at a location. Each historical record of seasonal air mass residence times, or persistence, was then analyzed for spatial variability across the United States and for temporal variability and trends. Results reveal a statistically significant increase in air mass persistence for many areas of the country during three seasons, but most commonly across the southern United States during the summer season (June-August). However, this pattern was reversed for the winter season (December-February), the analyses revealed a general pattern of decreasing cool-season air mass persistence across the continental United States. The seasonally-dependent change in air mass persistence across the United States may be indicative of changed or changing mid-latitude atmospheric dynamics in the form of a previously suggested northward migration of the polar jet stream.
Master of Science
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Li, Bocheng. "Influence of Petroleum Deposit Geometry on Long Term Persistence of Residual Crude Oil". Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/54007.

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Following the DWH oil spill event, crude oil reaching the shoreline of Gulf of Mexico produced petroleum oil deposit with a range of distinct geometries, including sphere tar balls and horizontal tar sheets. Numerical models were developed based on the Deep Water Horizon oil spill conditions to evaluate the influence of deposit geometry on long term persistence of residual NAPL oil. Two extreme deposit geometries were modeled in this study: the horizontal tar sheet and the spherical tar ball. Both two-dimensional modeling approach and three-dimensional modeling approach were applied to compare two contrasting geometries. The two-dimensional model results showed that sheet geometry deposits exhibited a greater obstruction to groundwater flow relative to the spherical deposits and induced a larger sulfate reducing zone downgradient of the NAPL source, resulting in significantly greater sulfate-based biodegradation of benzene. Three-dimensional models were constructed to assess the influence of key geometry parameters on oil deposit fate and persistence. Three parameters affecting deposit's geometric structure were recognized, including the upper horizontal area of the sheet deposit, the thickness of the sheet deposit, and the radius of the sphere deposit. The three-dimensional model results suggested that thickness of the sheet deposit and radius of the sphere deposit were important geometry factors impacting the fate and long term persistence of residual NAPL oil in the coastal environment. However, the influence of deposit geometry differed depending on the solubility of the different NAPL components. When high solubility compound and low solubility compound both exist in the oil deposit, the influence of deposit geometry on benzene degradation was significant, while the influence on naphthalene was almost negligible.
Master of Science
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Yenni, Glenda Marie. "Self-limitation as an explanation for species' relative abundances and the long-term persistence of rare species". DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1958.

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Much of ecological theory describes species interactions. These interactions often play an important theoretical role in facilitating coexistence. In particular, rarity in ecological communities, though often observed, provides a significant challenge to theoretical and empirical ecologists alike. I use a plant community model to simulate the effect of stronger negative frequency dependence on the long-term persistence of the rare species in a simulated community. This strong self-limitation produces long persistence times for the rare competitor, which otherwise succumb quickly to stochastic extinction. The results suggest that the mechanism causing species to be rare in this case is the same mechanism allowing those species to persist. To determine if ecological communities generally show the theoretical pattern, I estimate the strength of frequency-dependent population dynamics using species abundance data from 90 communities across a broad range of environments and taxonomic groups. In approximately half of the analyzed communities, rare species showed disproportionately strong negative frequency dependence. In particular, a pattern of increasing frequency dependence with decreasing relative abundance was seen in these communities, signaling the importance of this mechanism for rare species specifically. Insight into the special population dynamics of rare species will inform conservation efforts in response to climate change and other disturbance. Further difficulties in the detection of theoretical patterns in ecological data may be a result of the ecological currency used. Though ecologists typically use abundance data to test theories, energy use is another ecological currency that may be more relevant in some cases. In particular when detecting patterns that are a result of species interactions, the currency used should be the one in which those interactions actually operate. I compare the results of using abundance and energy use to detect two processes with well-defined expectations. The first is a description of population dynamics, the above described relationship between relative abundance and self-limitation. The second, compensatory dynamics, is a description of community-level dynamics. I find that the currency used alters the results, and thus the species-level implications. It does not, however, alter the overall pattern that would have theoretical implications. Results in both currencies support the pattern of strong self-limitation for persistent rare species.
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Manzello, Derek Paul. "Short and Long-term Ramifications of Climate Change upon Coral Reef Ecosystems: Case Studies Across Two Oceans". Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/78.

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World-wide coral reefs are in a state of decline as a result of many local and regional factors. Recent global mass mortalities of reef corals due to record warm sea temperatures have led researchers to consider global warming as one of the most significant threats to the persistence of coral reef ecosystems over the next 100 years. It is well established that elevated sea surface temperatures (SSTs) cause widespread coral bleaching, yet confusion lingers as to what facet of extreme temperatures is most important. Utilizing long-term in situ datasets, nine thermal stress indices were calculated and their effectiveness at segregating bleaching years a posteriori for multiple reefs on the Florida Reef Tract was tested. Simple bleaching thresholds based on deviations above the climatological maximum monthly SST were just as effective at identifying bleaching years as complex thermal stress indices. Near real-time bleaching alerts issued by NOAA's Integrated Coral Observing Network (ICON) are now based upon a running 30-day average SST, such that alerts are only issued when the running 30-day average SST exceeds the estimated bleaching threshold for a particular site. In addition to three widespread, mass-coral bleaching events, the Florida Reef Tract was impacted by three tropical storms and 12 hurricanes from 1997-2005. Sea surface cooling associated with the high frequency of hurricanes that impacted Florida in 2005 likely acted to ameliorate the severity and duration of bleaching. Nonetheless, hurricane-associated cooling is not expected to nullify the proposed effects of climate change on coral reefs. The role of thermal stress in coral bleaching has been extensively studied for eastern tropical Pacific (ETP) coral reefs. However, the ETP presents a unique opportunity as this region has sub-optimal conditions for coral reef development because of upwelling of carbon dioxide-enriched deep water along the shallow thermocline. This upwelling results in a depressed aragonite saturation state which is likely an additional factor in the poor reef development throughout the ETP. The highest aragonite saturation documented in this study occur in the Gulf of Chiriquí, which corresponds with the greatest reef development of the entire ETP. Seasonal upwelling had a significant effect on the carbonate chemistry of surface waters in Pacific Panamá. This regionally-depressed aragonite saturation state of the ETP appears to result in corals with a less dense skeleton. Density values of poritid corals from the Galápagos, where aragonite saturation was the lowest documented in this study, were significantly less dense relative to those from Panamá and the Great Barrier Reef. The density of non-living pocilloporid framework components were no different across the ETP aragonite saturation gradients. This could be a result of the activity of boring sponges removing the primary carbonate material within the dead coral skeleton, thus lowering density, albeit physical-chemical dissolution cannot be ruled out. These studies provide real-world examples of the ramifications of global climate change upon coral reef ecosystems.
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Wood, David. "Forest Disturbance and the Long Term Population Persistence of the Mt. Graham Red Squirrel: A Spatially Explicit Modeling Approach". Thesis, The University of Arizona, 2007. http://hdl.handle.net/10150/193362.

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We combined field data with high-resolution satellite imagery and a spatially explicit population model to predict long-term population dynamics of the endangered Mt. Graham red squirrel (MGRS: Tamiasciurus hudsonicus grahamensis), with the goal of examining effects of disturbance on MGRS population dynamics. We found that modeling MGRS dynamics improved with population specific data. Our results indicate that predation and competition potentially have large, adverse effects on population abundance. Habitat quality analysis indicates much of the spruce-fir forest is degraded to the point that it cannot support MGRS, therefore, the future of the species will rely on management in the mixed conifer zones. Our models predict that future populations will not show the variability exhibited in abundance over the past 20 years, likely due to degradation of spruce-fir forests, and that even low levels of fire and insect disturbance have the potential to drive MGRS population below critical population thresholds.
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Carossino, Mariano. "CELLULAR AND MOLECULAR BASIS OF EQUINE ARTERITIS VIRUS PERSISTENT INFECTION IN THE STALLION REPRODUCTIVE TRACT: CHARACTERIZATION OF LOCAL HOST-PATHOGEN INTERACTIONS MEDIATING LONG-TERM VIRAL PERSISTENCE". UKnowledge, 2018. https://uknowledge.uky.edu/gluck_etds/35.

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Equine arteritis virus (EAV) has a global impact on the equine industry being the causative agent of equine viral arteritis (EVA), a reproductive, respiratory, and systemic disease of equids. A distinctive feature of EAV infection is that it establishes long-term persistent infection in the reproductive tract of stallions and is continuously shed in the semen (carrier state). Recent studies showed that long-term persistence is associated with a specific allele of the CXCL16 gene (CXCL16S). However, the cellular and molecular mechanisms underlying the establishment and maintenance of persistent infection are yet to be determined. The studies were undertaken herein unequivocally demonstrated that the ampulla is the main EAV tissue reservoir rather than immunologically privileged tissues (i.e., testes) and that EAV has specific tropism for stromal cells and CD8+ T and CD21+ B lymphocytes but not glandular epithelium in the reproductive tract. Furthermore, persistent EAV infection is associated with a significant humoral, mucosal antibody and inflammatory response at the site of persistence, characterized by induction of high levels of neutralizing antibodies (IgG1), mucosal anti-EAV-specific IgA, IgG1, IgG3/5, and IgG4/7 with variable neutralizing efficacy; and moderate, multifocal lymphoplasmacytic ampullitis, with significant infiltration of T lymphocytes (mainly CD8+ and low numbers of FOXP3+ lymphocytes), CD21+ B lymphocytes, diverse Ig-secreting plasma cells, and Iba-1+ and CD83+ tissue macrophages/dendritic cells. Moreover, EAV long-term persistent infection is associated with a CD8+ T lymphocyte transcriptional profile with upregulation of T-cell exhaustion-related transcripts and homing chemokines/chemokine receptors (CXCL9-11/CXCR3 and CXCL16/CXCR6), orchestrated by a specific subset of transcription factors (EOMES, PRDM1, BATF, NFATC2, STAT1, IRF1, TBX21), which are associated with the presence of the susceptibility allele (CXCL16S). Finally, these studies have determined that long-term EAV persistence is associated with the downregulation of a specific seminal exosome-associated miRNA (eca-mir-128) along with an enhanced expression of CXCL16 in the reproductive tract, a putative target of eca-mir-128. These findings provide evidence that this miRNA plays a crucial role in the regulation of the CXCL16/CXCR6 axis in the reproductive tract of persistently infected stallions, a chemokine axis strongly implicated in EAV persistence. The findings presented herein suggest that complex host-pathogen interactions shape the outcome of EAV infection in the stallion and that EAV employs complex immune evasion mechanisms favoring persistence in the reproductive tract. Further studies to identify specific mechanisms mediating the modulation of the CXCL16/CXCR6 axis and viral immune evasion in the reproductive tract of the EAV long-term carrier stallion are warranted.
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Libri sul tema "Long-term persistence"

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Hymanson, Zachary P. Long-term trends in benthos abundance and persistence in the Upper Sacramento-San Joaquin Estury: Summary report : 1980-1990. [Sacramento, Calif.]: Interagency Ecological Program for the San Francisco Bay/Delta Estuary, 1994.

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Hymanson, Zachary P. Long-term trends in benthos abundance and persistence in the Upper Sacramento-San Joaquin Estury: Summary report : 1980-1990. [Sacramento, Calif.]: Interagency Ecological Program for the San Francisco Bay/Delta Estuary, 1994.

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Dekimpe, Marnik G. Sustained spending and persistent response: A new look at long-term marketing profitability. Cambridge, Mass: Marketing Science Institute, 1997.

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Dekimpe, Marnik G. Sustained spending and persistent response: A new look at long-term marketing profitability. Cambridge, Mass: Marketing Science Institute, 1997.

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Fund, International Monetary, a cura di. Long-term trends in the saving-investment balance and persistent current account surpluses in a small open economy: The case of the Netherlands. Washington, D.C: International Monetary Fund, 1996.

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Harner, Tom. Modelling the long term exchange of persistent chemicals between the soil and the atmosphere and the measurement of octanol-air partition coefficients for chlorobenzenes and PCBs. Ottawa: National Library of Canada, 1994.

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Adams, R. L. The Art of Persistence: The Simple Secrets to Long-Term Success. Createspace Independent Publishing Platform, 2013.

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Houssais, Sylviane, Lily Hechtman e Rachel G. Klein. Long-Term Outcomes of Childhood Attention Deficit Hyperactivity Disorder. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190213589.003.0003.

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This chapter summarizes the long-term clinical and functional outcomes of children diagnosed with ADHD at a mean age of eight years (probands), followed prospectively for 33 years. Outcomes are summarized in adolescence, early adulthood, and mid-adulthood. Compared with matched controls, probands showed greater persistence of ADHD and greater prevalence of Conduct Disorder (CD), Antisocial Personality Disorder (APD), and Substance Use Disorder (SUD) in late adolescence. These dysfunctions continued into early adulthood, even when ADHD remitted for the majority of the sample, and were associated with deficits in educational and occupational attainment. The disproportionally high rate of CD, APD, and SUD translated to significantly higher rates of criminality, risk-taking behavior, risk-related medical outcomes, and elevated obesity rates in adulthood. The study’s findings suggest that childhood ADHD predisposes to maladjustment in adolescence and adulthood, particularly in a subset of individuals who develop CD/APD early on.
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Qin, Nan, e Ying Wang. Hedge Funds and Performance Persistence. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190607371.003.0026.

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Despite the exponential growth of global hedge fund assets since the 1990s, the high attrition rates in the industry have raised an important issue about hedge fund return persistence. This chapter discusses the various statistical methodologies in measuring performance persistence and provides a comprehensive review of the empirical literature on short- and long-term performance persistence. In particular, the literature suggests that fund strategies and characteristics are related to performance persistence. The chapter also discusses three important issues: return smoothing, the use of option-like strategies, and data biases. The chapter provides additional empirical evidence on performance persistence, using a portfolio approach and a hedge fund sample from the Trading Advisor Selection System (TASS) database between 1994 and 2015.
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Swanson, James M., L. Eugene Arnold, Peter S. Jensen, Stephen P. Hinshaw, Lily T. Hechtman, William E. Pelham, Laurence L. Greenhill et al. Long-term outcomes in the Multimodal Treatment study of Children with ADHD (the MTA). Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198739258.003.0034.

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This chapter describes the long-term outcomes in the Multimodal Treatment study of ADHD (MTA), which began in 1994 and ended in 2014. First, we provide a short history of the origin of the MTA. Second, we review the design as a 14-month randomized clinical trial and the transition to a long-term follow-up. Third, we present findings from 12 key publications describing outcomes in four stages of the MTA from childhood to adulthood. Fourth, we discuss how the final adult assessments of the MTA address critical issues about symptomatic persistence of ADHD, functional outcomes outside the parental home, and cost-benefit analyses of residual effects of treatment with medication.
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Capitoli di libri sul tema "Long-term persistence"

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Ruzmaikin, Alexander, Joan Feynman e Paul Robinson. "Long-Term Persistence of Solar Activity". In The Sun as a Variable Star: Solar and Stellar Irradiance Variations, 313. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0950-5_47.

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Pałka, Piotr. "Persistence Management in Long-Term Digital Archive". In Studies in Computational Intelligence, 123–32. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51801-5_7.

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Kuo, Albert Y., John M. Hamrick e Gamble M. Sisson. "Persistence of Residual Currents in the James River Estuary and its Implication to Mass Transport". In Residual Currents and Long-term Transport, 389–401. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-9061-9_27.

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Rybski, Diego, Armin Bunde, Shlomo Havlin, Jan W. Kantelhardt e Eva Koscielny-Bunde. "Detrended Fluctuation Studies of Long-Term Persistence and Multifractality of Precipitation and River Runoff Records". In In Extremis, 216–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14863-7_11.

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Palazzo, A. J., C. R. Lee e R. Price. "Long-term plant persistence on highly acidic soils amended with organic materials in two climatic zones". In Plant-Soil Interactions at Low pH: Principles and Management, 605–10. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0221-6_95.

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Poucheret, Patrick, René Gross, Anne Cadène, Michelle Mantéguetti, Jean-Jacques Serrano, Gérard Ribes e Gérard Cros. "Long-term correction of STZ-diabetic rats after short-term i.p. VOSO4 treatment: Persistence of insulin secreting capacities assessed by isolated pancreas studies". In Vanadium Compounds: Biochemical and Therapeutic Applications, 197–204. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4613-1251-2_26.

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Bekinschtein, Pedro, Cynthia Katche, Leandro Slipczuk, Carolina Gonzalez, Guido Dorman, Martín Cammarota, Iván Izquierdo e Jorge H. Medina. "Persistence of Long-Term Memory Storage: New Insights into its Molecular Signatures in the Hippocampus and Related Structures". In Staging Neuropsychiatric Disorders, 205–13. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4614-0785-0_19.

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Wild, S. R., M. L. Berrow e K. C. Jones. "The Fate and Long-Term Persistence of Polynuclear Aromatic Hydrocarbons (PAHs) in Agricultural Soils Amended with Sewage Sludges". In Contaminated Soil ’90, 457–62. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-3270-1_102.

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Bekinschtein, Pedro, Cynthia Katche, Leandro Slipczuk, Carolina Gonzalez, Guido Dorman, Martín Cammarota, Iván Izquierdo e Jorge H. Medina. "Persistence of Long-Term Memory Storage: New Insights into its Molecular Signatures in the Hippocampus and Related Structures". In Staging Neuropsychiatric Disorders, 239–47. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7264-3_22.

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Ortalda, V., A. Fabris, A. D’Angelo, S. Giannini, L. Perobelli e G. Maschio. "Correlation Between Recurrence of Nephrolithiasis and Persistence of Bone Resorption in Patients with Recurrent Calcium Nephrolithiasis on Long-Term Thiazide Therapy". In Urolithiasis, 793–95. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4899-0873-5_253.

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Atti di convegni sul tema "Long-term persistence"

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Hara, J., e Y. Kawabe. "Long-term Persistence of Cyclodiene Pesticide in Soil". In WATER DYANMICS: 4th International Workshop on Water Dynamics. AIP, 2007. http://dx.doi.org/10.1063/1.2721245.

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Wang, Chien-Min, Shun-Te Wang, Hsi-Min Chen e Chi-Chang Huang. "An extensible mechanism for Long-Term Persistence of JavaBeans components". In the 4th international symposium. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1168054.1168068.

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Harrouni, Samia. "Using Fractal Dimension to Evaluate Wind Gusts Long-Term Persistence". In 2018 2nd European Conference on Electrical Engineering and Computer Science (EECS). IEEE, 2018. http://dx.doi.org/10.1109/eecs.2018.00083.

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An, Jianmei, Yunfang Cai, Yi Qi, Yongyan Zuo e Xianping Wang. "Long-term persistence and cross-wavelet transform analysis of solar filament activity". In Tenth International Conference on Digital Image Processing (ICDIP 2018), a cura di Xudong Jiang e Jenq-Neng Hwang. SPIE, 2018. http://dx.doi.org/10.1117/12.2503327.

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Pedro, Filipa, Filipa Carreiro e Maria Moraes-Fontes. "AB0482 MORE THAN ONE POSITIVITY FOR ANTIPHOSPHOLIPID SYNDROME DETERMINES LONG TERM ANTIBODY PERSISTENCE". In Annual European Congress of Rheumatology, EULAR 2019, Madrid, 12–15 June 2019. BMJ Publishing Group Ltd and European League Against Rheumatism, 2019. http://dx.doi.org/10.1136/annrheumdis-2019-eular.8221.

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Siroux, Valérie, Anne Boudier, Maïa Dolgopoloff, Sébastien Chanoine, Jean Bousquet, Frederic Gormand, Jocelyne Just et al. "Small airways obstruction is associated with long-term persistence of asthma (EGEA study)". In Annual Congress 2015. European Respiratory Society, 2015. http://dx.doi.org/10.1183/13993003.congress-2015.oa1999.

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Savery, Richard, e Gil Weinberg. "Long-Term Interaction and Persistence of Engagement for Musical Interaction using a Genetic Algorithm". In HAI '20: 8th International Conference on Human-Agent Interaction. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3406499.3418768.

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Gritsko, M. A. "DEMOGRAPHIC POTENTIAL OF THE KHABAROVSK TERRITORY: ASSESSMENT OF LONG-TERM TRENDS AND DEVELOPMENT PROSPECTS". In SOCIO-ECONOMIC DEVELOPMENT OF THE RUSSIAN EAST: NEW CHALLENGES AND STRATEGIC GUIDELINES. Khabarovsk: KSUEL Editorial and Publishing Center, 2021. http://dx.doi.org/10.38161/978-5-7823-0746-2-2021-128-132.

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The article provides an assessment of long-term trends in the demographic dynamics of the Khabarovsk Territory. The main indicators of the natural movement of the population of the region over the past three decades are analyzed. The decline in the birth rate and the persistence of increased mortality rates against the background of a consistently negative migration balance indicate that unfavorable demographic trends will continue to persist.
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Orbis, Iciar Cañamares, Leticia Merino-Meléndez, Irene Llorente, Juana Benedi Gonzalez, Rosario Garcia de Vicuna, Alberto Morell, Isidoro González-álvaro e Esther Ramirez. "AB0371 LONG TERM RITUXIMAB PERSISTENCE FOR RHEUMATOID ARTHRITIS IN THE REAL WORLD: THE RITAR STUDY". In Annual European Congress of Rheumatology, EULAR 2019, Madrid, 12–15 June 2019. BMJ Publishing Group Ltd and European League Against Rheumatism, 2019. http://dx.doi.org/10.1136/annrheumdis-2019-eular.7545.

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Wysham, Nicholas, e Richard A. Mularski. "Long-Term Persistence Of Quality Improvements For An ICU Communication Initiative: Mixed Performance At 3 Years". In American Thoracic Society 2012 International Conference, May 18-23, 2012 • San Francisco, California. American Thoracic Society, 2012. http://dx.doi.org/10.1164/ajrccm-conference.2012.185.1_meetingabstracts.a6559.

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Rapporti di organizzazioni sul tema "Long-term persistence"

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Guiso, Luigi, Paola Sapienza e Luigi Zingales. Long Term Persistence. Cambridge, MA: National Bureau of Economic Research, agosto 2008. http://dx.doi.org/10.3386/w14278.

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Bridges, Todd, Sandra Newell, Alan Kennedy, David Moore, Upal Ghosh, Trevor Needham, Huan Xia, Kibeum Kim, Charles Menzie e Konrad Kulacki. Long-term stability and efficacy of historic activated carbon (AC) deployments at diverse freshwater and marine remediation sites. Engineer Research and Development Center (U.S.), novembre 2020. http://dx.doi.org/10.21079/11681/38781.

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A number of sites around the United States have used activated carbon (AC) amendments to remedy contaminated sediments. Variation in site-specific characteristics likely influences the long-term fate and efficacy of AC treatment. The long-term effectiveness of an AC amendment to sediment is largely unknown, as the field performance has not been monitored for more than three years. As a consequence, the focus of this research effort was to evaluate AC’s long-term (6–10 yr) performance. These assessments were performed at two pilot-scale demonstration sites, Grasse River, Massena, New York and Canal Creek, Aberdeen Proving Ground (APG), Aberdeen, Maryland, representing two distinct physical environments. Sediment core samples were collected after 6 and 10 years of remedy implementation at APG and Grasse River, respectively. Core samples were collected and sectioned to determine the current vertical distribution and persistence of AC in the field. The concentration profile of polychlorinated biphenyls (PCBs) in sediment pore water with depth was measured using passive sampling. Sediment samples from the untreated and AC-treated zones were also assessed for bioaccumulation in benthic organisms. The data collected enabled comparison of AC distribution, PCB concentrations, and bioaccumulation measured over the short- and long-term (months to years).
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Fazzari, Steven, e Ella Needler. US Employment Inequality in the Great Recession and the COVID-19 Pandemic. Institute for New Economic Thinking Working Paper Series, marzo 2021. http://dx.doi.org/10.36687/inetwp154.

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This article compares inequality in US employment across social groups in the Great Recession and the COVID-19 pandemic. We develop an inequality measure that captures both how much employment declines during a recession and the persistence of those declines. The results show a significant shift of job loss from men in the Great Recession to women in the COVID-19 lockdown. White workers fare better than other racial/ethnic groups in both recessions. Black and Hispanic women are hit especially hard in the COVID-19 pandemic. With our job loss measure, less educated workers had modestly worse outcomes in the Great Recession. However, during COVID-19, less educated workers suffer much more severe employment consequences than more educated groups. We discuss long-term effects of employment inequality and how these findings are relevant to debates about policy responses.
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Henley, Megan, Lindie Hill, Sydney Inman, Molly King, Sam Lopez e Carley Mahaffey. Long-Term Outcomes in Children with Acute Flaccid Myelitis. University of Tennessee Health Science Center, maggio 2021. http://dx.doi.org/10.21007/chp.mot2.2021.0007.

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The purpose of our critically appraised topic is to combine the best evidence regarding the long-term outcomes in children with acute flaccid myelitis (AFM) regarding posture and movement, gross and fine motor control, and activities of daily living (ADL) performance. The final portfolio contains eight articles. The study designs of these articles include a retrospective cohort study, two retrospective non-randomized studies without a control group, a retrospective review, a nationwide follow-up questionnaire analysis study, a case report, a case series, and a multiple quantitative case study. All studies related directly to our evidence-based PICO question and were used to determine the best evidence of the long-term outcomes in children with AFM. Overall, our findings showed that functional improvements were seen in most i ndividuals, however, this varied from complete to incomplete recovery along with some persistent motor and functional deficits. Every case is different depending on when they were diagnosed, and how quickly they were able to implement a rehabilitation program into their everyday routine.
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Sela, Shlomo, e Michael McClelland. Desiccation Tolerance in Salmonella and its Implications. United States Department of Agriculture, maggio 2013. http://dx.doi.org/10.32747/2013.7594389.bard.

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Salmonella enterica is a worldwide food-borne pathogen, which regularly causes large outbreaks of food poisoning. Recent outbreaks linked to consumption of contaminated foods with low water-activity, have raised interest in understanding the factors that control fitness of this pathogen to dry environment. Consequently, the general objective of this study was to extend our knowledge on desiccation tolerance and long-term persistence of Salmonella. We discovered that dehydrated STm entered into a viable-but-nonculturable state, and that addition of chloramphenicol reduced bacterial survival. This finding implied that adaptation to desiccation stress requires de-novo protein synthesis. We also discovered that dried STm cells develop cross-tolerance to multiple stresses that the pathogen might encounter in the agriculture/food environment, such as high or low temperatures, salt, and various disinfectants. These findings have important implications for food safety because they demonstrate the limitations of chemical and physical treatments currently utilized by the food industry to completely inactivate Salmonella. In order to identify genes involved in desiccation stress tolerance, we employed transcriptomic analysis of dehydrated and wet cells and direct screening of knock-out mutant and transposon libraries. Transcriptomic analysis revealed that dehydration induced expression of ninety genes and down-regulated seven. Ribosomal structural genes represented the most abundant functional group with a relatively higher transcription during dehydration. Other large classes of induced functional groups included genes involved in amino acid metabolism, energy production, ion transport, transcription, and stress response. Initial genetic analysis of a number of up-regulated genes was carried out). It was found that mutations in rpoS, yahO, aceA, nifU, rpoE, ddg,fnr and kdpE significantly compromised desiccation tolerance, supporting their role in desiccation stress response.
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Taher, Raya, Farah Abu Safe e Jean-Patrick Perrin. Not In My Backyard: The impact of waste disposal sites on communities in Jordan. Oxfam, luglio 2021. http://dx.doi.org/10.21201/2021.7734.

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Waste disposal sites across Jordan pose serious risks to the environment and to public health if not managed safely. Municipal waste decomposing in open landfills also takes an environmental and socio-economic toll on neighbouring communities. While the Government of Jordan is planning to reduce the number of operational landfills and improve waste management services, persistent issues associated with unsustainable waste practices and their associated effects on the wellbeing of surrounding communities and the environment need to be addressed. Guaranteeing a sustainable waste management scheme for communities in Jordan should include increased consideration of the long-term effects that waste disposal sites have on neighbouring communities.
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Fontanari, Claudia, e Antonella Palumbo. Permanent Scars: The Effects of Wages on Productivity. Institute for New Economic Thinking Working Paper Series, luglio 2022. http://dx.doi.org/10.36687/inetwp187.

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This paper explores how stagnating real wages may have contributed to the slowdown of US productivity. Through shift-share analysis, we find that after a sharp change in distribution against wages, some historically high-productivity sectors (like manufacturing) switched towards slower productivity growth. This supports our hypothesis that the anemic growth of productivity may be partly due to the trend toward massive use of cheap labor. Our estimation of Sylos Labini’s productivity equation confirms the existence of two direct effects of wages, one acting through the incentive to mechanization and the other through the incentive to reorganize labor use. We also show that labor ‘weakness’ may exert a further negative effect on labor productivity. On the whole, we find that a persistent regime of low wages may determine very negative long-term consequences on the economy.
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Valverde, Rodrigo A., Aviv Dombrovsky e Noa Sela. Interactions between Bell pepper endornavirus and acute viruses in bell pepper and effect to the host. United States Department of Agriculture, gennaio 2014. http://dx.doi.org/10.32747/2014.7598166.bard.

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Based on the type of relationship with the host, plant viruses can be grouped as acute or persistent. Acute viruses are well studied and cause disease. In contrast, persistent viruses do not appear to affect the phenotype of the host. The genus Endornavirus contains persistent viruses that infect plants without causing visible symptoms. Infections by endornaviruses have been reported in many economically important crops, such as avocado, barley, common bean, melon, pepper, and rice. However, little is known about the effect they have on their plant hosts. The long term objective of the proposed project is to elucidate the nature of the symbiotic interaction between Bell pepper endornavirus (BPEV) and its host. The specific objectives include: a) to evaluate the phenotype and fruit yield of endornavirus-free and endornavirus-infected bell pepper near-isogenic lines under greenhouse conditions; b) to conduct gene expression studies using endornavirus-free and endornavirus-infected bell pepper near-isogenic lines; and c) to study the interactions between acute viruses, Cucumber mosaic virus Potato virus Y, Pepper yellow leaf curl virus, and Tobacco etch virus and Bell pepper endornavirus. It is likely that BPEV in bell pepper is in a mutualistic relationship with the plant and provide protection to unknown biotic or abiotic agents. Nevertheless, it is also possible that the endornavirus could interact synergistically with acute viruses and indirectly or directly cause harmful effects. In any case, the information that will be obtained with this investigation is relevant to BARD’s mission since it is related to the protection of plants against biotic stresses.
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Zhang, Hengdi, Yunming Li, Guangyu Chen, Fei Han e Wei Jiang. Human amniotic membrane graft for refractory macular hole: a single-arm meta analysis and systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, febbraio 2022. http://dx.doi.org/10.37766/inplasy2022.2.0098.

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Review question / Objective: Currently, pars plana vitrectomy (PPV) with ILM peeling is the gold standard treatment for full thickness macular hole (FTMH). Despite of the high macular hole closure rate, a refractory FTMH may occur. The next step for a recurrent or persistent MH is usually repeat PPV with extended ILM peeling. This is not always an option especially with high myopia patients or those who had already undergone an aggressive ILM peeling at initial surgery. A variety of novel techniques have been developed to address this issue, among which human amniotic membrane seems to be a promising adjuvant. However, there are still uncertainties regarding the integration and the long-term effects of of the graft. Information sources: PubMed, Embase, Web of science, Cochrane library, Wanfang Data Knowledge Service Platform, China National Knowledge Infrastructure databases, sinomed (CBM), VIP database, Clinical Trails.gov and Chinese Clinical Trail Registry.
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Fairhurst, Vanessa, Chieh-Chih Estelle Cheng, Xiaoli Chen e Cameron Neylon. Better Together: Open new possibilities with Open Infrastructure (APAC time zones). Chair Hideaki Takeda. Crossref, giugno 2022. http://dx.doi.org/10.13003/xdvu4372.

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Crossref, DataCite, and ORCID work together to provide foundational open infrastructure that is integral to the global research ecosystem. We offer unique, persistent identifiers (PIDs) — Crossref and DataCite DOIs for research outputs and ORCID iDs for people — alongside collecting comprehensive, open metadata that is non-proprietary, accessible, interoperable, and available across borders, disciplines, and time. As sustainable community-driven scholarly infrastructure providers ORCID, Crossref and Datacite, guarantee data provenance and machine-readability. Persistent identifiers combined with open, standardized, and machine-readable metadata enable reliable and robust connections to be made between research outputs, organizations, individuals, and much more, as well as being beneficial to others who build services and tools on top of the open infrastructure we provide making content more discoverable. In this webinar we discuss: - Who we are - What we mean by Open Scholarly Infrastructure - How our organizations work together for the benefit of the scholarly community - How the Principles of Open Scholarly Infrastructure (POSI) help to build trust and accountability as well as ensure we are around for the long term. This is the first of the joint webinar series co-organized by Crossref, DataCite, and ORCID for the Open Science community in the APAC region. The webinar is presented in English and lasts 90 minutes including time for Q&A. This webinar took place on 27 June 2022 at 7am UTC/ 9am CEST / 5pm AEST.
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