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Journal articles on the topic 'Timing anomalies'

Author: Grafiati

Published: 19 February 2023

Last updated: 25 May 2024

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1

McCarthy, Joseph G., and Court B. Cutting. "The Timing of Surgical Intervention in Craniofacial Anomalies." Clinics in Plastic Surgery 17, no. 1 (1990): 161–82. http://dx.doi.org/10.1016/s0094-1298(20)31277-3.

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Lübbecke, Joke F., Natalie J. Burls, Chris J. C. Reason, and Michael J. McPhaden. "Variability in the South Atlantic Anticyclone and the Atlantic Niño Mode*." Journal of Climate 27, no. 21 (2014): 8135–50. http://dx.doi.org/10.1175/jcli-d-14-00202.1.

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Abstract Previous studies have argued that the strength of the South Atlantic subtropical high pressure system, referred to as the South Atlantic anticyclone (SAA), modulates sea surface temperature (SST) anomalies in the eastern equatorial Atlantic. Using ocean and atmosphere reanalysis products, it is shown here that the strength of the SAA from February to May impacts the timing of the cold tongue onset and the intensity of its development in the eastern equatorial Atlantic via anomalous tropical wind power. This modulation in the timing and amplitude of seasonal cold tongue development man

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Arora, Rohit, Deepak Bagga, and Sugandha Arya. "Surgical Corrections: Correct Timing." Journal of Neonatology 21, no. 4 (2007): 255–58. http://dx.doi.org/10.1177/097321790702100410.

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Many congenital anomalies amenable to surgery, while not incompatible with life may seriously hamper the growth and development of the infant if allowed to remain uncorrected. Knowledge of optimal age for correction of the lesions is of great value to the physician, since needless premature surgical referrals and prolongation beyond the optimal time may be avoided. This article brings forward few of the important surgical conditions commonly encountered in neonatal and pediatric practice and briefly reviews the optimal age for their surgical correction.

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4

Lawson, Daniel T., Robert L. Schwartz, and Seth D. Thomas. "Hedge Funds, Arbitrage, and Timing." International Journal of Economics and Finance 13, no. 1 (2020): 45. http://dx.doi.org/10.5539/ijef.v13n1p45.

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This paper is an extension of the work of Lawson and Schwartz (2018) which analyzes the risk-adjusted performance of hedge funds by employing a collection of four, five, seven, and eight-factor models. The purpose is to evaluate how well the top and bottom performing subset of hedge fund strategies have profited on known asset pricing anomalies during two unique time periods, 1994 to 2000 and 2001 to 2008. The bifurcation of the data into two distinct periods allows for a deeper exploration of the potential time-varying significance of estimated factor arbitrage. Our empirical testing suggests

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Nagorneva, Stanislava V., Victoria S. Prokhorova, Elizaveta V. Shelaeva, and Alexandra M. Khudovecova. "The prevalence of congenital fetal anomalies for the past 5 years (2013-2017)." Journal of obstetrics and women's diseases 67, no. 3 (2018): 44–48. http://dx.doi.org/10.17816/jowd67344-48.

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This article presents the data on the prevalence of congenital fetal anomalies in our hospital population obtained for the past five years (2013–2017). We analyzed the changes in their structure and the timing of diagnoses for the anomalies. In addition, the comparison of our results with international data was performed and extremely rare anomalies were described.

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Zakeri, Mohammadreza. "Pulsar timing anomalies: a window into baryon number violation." Journal of Cosmology and Astroparticle Physics 2024, no. 05 (2024): 052. http://dx.doi.org/10.1088/1475-7516/2024/05/052.

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Abstract We investigate the influence of a specific class of slow Baryon Number Violation (BNV)—one that induces quasi-equilibrium evolution — on pulsar spin characteristics. This work reveals how BNV can potentially alter observable parameters, including spin-down rates, the second derivative of spin frequency, and braking indices of pulsars. Moreover, we demonstrate that BNV could lead to anomalies in pulsar timing, along with a wide array of braking indices, both positive and negative. In addition, we examine the possibility of pulsar spin-up due to BNV, which may result in a novel mechanis

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Ferguson, Ian M., John A. Dracup, Philip B. Duffy, Philip Pegion, and Siegfried Schubert. "Influence of SST Forcing on Stochastic Characteristics of Simulated Precipitation and Drought." Journal of Hydrometeorology 11, no. 3 (2010): 754–69. http://dx.doi.org/10.1175/2009jhm1132.1.

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Abstract Recent studies demonstrate that ocean–atmosphere forcing by persistent sea surface temperature (SST) anomalies is a primary driver of seasonal-to-interannual hydroclimatic variability, including drought events. Other studies, however, conclude that although SST anomalies influence the timing of drought events, their duration and magnitude over continental regions is largely governed by land–atmosphere feedbacks. Here the authors evaluate the direct influence of SST anomalies on the stochastic characteristics of precipitation and drought in two ensembles of AGCM simulations forced with

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Pattar, Pratima Manohar, Sainath K. Andola, Asha Patil, and Suraj B. "Frequency of Urinary Anomalies in Perinatal Autopsies." Indian Journal of Forensic Medicine and Pathology 14, no. 3 (2021): 347–54. http://dx.doi.org/10.21088/ijfmp.0974.3383.14321.4.

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Background: Congenital anomalies of urinary system are common and are found in 3-4% of population, and 10% of terminations of pregnancies are attributable to lethal urinary anomalies. Although timely detection of nonlethal anomalies depends on many aspects, for instance equipment quality, sonologist experience and timing of the ultrasound examination. However, to confirm the findings and to attain definite diagnosis, a fetal autopsy after the termination of a pregnancy is of utmost important and is also crucial for genetic counseling.In view of this, the present study aimed to determine the fr

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Friedel, Marina, Gabriel Chiodo, Andrea Stenke, Daniela I. V. Domeisen, and Thomas Peter. "Effects of Arctic ozone on the stratospheric spring onset and its surface impact." Atmospheric Chemistry and Physics 22, no. 21 (2022): 13997–4017. http://dx.doi.org/10.5194/acp-22-13997-2022.

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Abstract. Ozone in the Arctic stratosphere is subject to large interannual variability, driven by both chemical ozone depletion and dynamical variability. Anomalies in Arctic stratospheric ozone become particularly important in spring, when returning sunlight allows them to alter stratospheric temperatures via shortwave heating, thus modifying atmospheric dynamics. At the same time, the stratospheric circulation undergoes a transition in spring with the final stratospheric warming (FSW), which marks the end of winter. A causal link between stratospheric ozone anomalies and FSWs is plausible an

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10

Bhatia, Parul, Sudhi Sharma, Vaibhav Aggarwal, and Niyati Chaudhary. "Testing event-based day of the week anomaly and trading opportunities: Evidence from Indian sectoral indices." Investment Management and Financial Innovations 21, no. 2 (2024): 28–43. http://dx.doi.org/10.21511/imfi.21(2).2024.03.

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The study is an attempt to examine the day-of-the-week anomaly of fourteen Indian sectoral indices and identify profitable opportunities, considering multiple positive and negative events. The aim of this study is to analyze the day-of-the-week effect on fourteen Indian sectoral indices and find profitable opportunities while considering multiple events that have positive and negative impacts. The study takes into consideration event-based anomalies, both national and global, and provides timing for trading to generate abnormal returns from the market. At first, dummy variable regression analy

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11

Lukasevich, I. Ya. "Investigation of Timing Anomalies in the Russian Stock Market in the Post-Crisis Period." Economics, taxes & law 12, no. 3 (2019): 37–47. http://dx.doi.org/10.26794/1999-849x-2019-12-3-37-47.

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The implementation of the May presidential decree aimed at Russia’s joining the top five global economies and achieving economic growth rates above the world’s average while maintaining macroeconomic stability requires a highly developed and efficient stock market ensuring the accumulation of capital and its deployment in the most promising and productive sectors of the economy.The subject of the research is timing anomalies in the Russian stock market in 2012–2018. The relevance of the research is due to the information inefficiency of the Russian stock market and its imperfections leading to

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12

Yin, Fan, Hermann Lühr, Jan Rauberg, Ingo Michaelis, and Hongtao Cai. "Characterization of CHAMP magnetic data anomalies: magnetic contamination and measurement timing." Measurement Science and Technology 24, no. 7 (2013): 075005. http://dx.doi.org/10.1088/0957-0233/24/7/075005.

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13

Schwabkey, Zaker I., and Robert R. Jenq. "Microbiome Anomalies in Allogeneic Hematopoietic Cell Transplantation." Annual Review of Medicine 71, no. 1 (2020): 137–48. http://dx.doi.org/10.1146/annurev-med-052918-122440.

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The microbiome is an integrated part of the human body that can modulate a variety of disease processes and affect prognosis, treatment response, complications, and outcomes. The importance of allogeneic hematopoietic cell transplantation in cancer treatment has resulted in extensive investigations on the interaction between the microbiome and this treatment modality. These investigations are beginning to lead to clinical trials of microbiome-targeted interventions. Here we review some of these discoveries and describe strategies being investigated to manipulate the microbiome for favorable ou

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Pharoah, Peter O. D. "Causal Hypothesis for Some Congenital Anomalies." Twin Research and Human Genetics 8, no. 6 (2005): 543–50. http://dx.doi.org/10.1375/twin.8.6.543.

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AbstractCongenital anomalies are a major cause of fetal and neonatal death and of childhood morbidity. Chromosomal and other genetic abnormalities, environmental teratogens and some nutritional deficiencies account for some congenital anomalies but the majority are of unknown etiology. The hypothesis is here proposed that a significant proportion of congenital anomalies and cerebral palsy of unknown etiology are attributable to a monozygotic multiple conception with monochorionic placentation and that these anomalies, even in singletons, may be explained by early, unrecognized or unrecorded lo

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15

Ullah, Waheed, Guojie Wang, Dan Lou, et al. "The Empirical Influence of Tibetan Plateau Spring Soil Moisture on South Asian Monsoon Onset: A Linear Diagnostic Perspective." Journal of Climate 36, no. 24 (2023): 8723–42. http://dx.doi.org/10.1175/jcli-d-22-0262.1.

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Abstract The South Asian high (SAH) location and intensity are linked with the latent heating of the Tibetan Plateau (TP) and Yangtze River basin. The relationship between SAH variability and its impact on South Asian monsoon (SAM) onset is rarely linked with TP soil moisture. This study uses remotely sensed soil moisture and reanalysis products to quantify the relationship between the TP spring (April–June) soil moisture with SAH and SAM onset during 1988–2008. The results show that the TP spring soil moisture and monsoon onset indices are negatively correlated (R < −0.65), whereas the SAH

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16

M., Chimmalgi, Rangsubhe P., Shanu S., et al. "Double superior vena cava and variation in pulmonary venous drainage - case report." National Journal of Clinical Anatomy 05, no. 03 (2016): 156–60. http://dx.doi.org/10.1055/s-0039-3401600.

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AbstractDuring routine dissection for undergraduate students, two venous end cardiac anomalies were noted In a male cadaver, in addition to a normal right sided superior vena cava, a persistent left superior vena cava (PLSVC) was seen opening into the right atrium via coronary sinus. Left brachiocephalic vein was of a small caliber. In addition, left atrium showed only two pulmonary ostia. No other cardiac anomalies were found Both these anomalies rarely cause any haemo-dynamic compromise and hence may remain asymptomatic throughout life. They are usually found as a chance finding during imagi

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17

Eskandari, Metin Manouchehr, Volkan Oztuna, and Ferit Demirkan. "LATE PSYCHOSOCIAL EFFECTS OF CONGENITAL HAND ANOMALY." Hand Surgery 09, no. 02 (2004): 257–59. http://dx.doi.org/10.1142/s0218810404002273.

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Lifetime-standing psychosocial effects of congenital hand anomalies are inevitable in patients who have not received a comprehensive treatment with appropriate timing and approach. Herein, two adult cases of untreated thumb polydactyly are presented. Both of them had hands with striking appearance and late consequent psychosocial problems.

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18

Al-Eidi, Shorouq, Omar Darwish, and Yuanzhu Chen. "Covert Timing Channel Analysis Either as Cyber Attacks or Confidential Applications." Sensors 20, no. 8 (2020): 2417. http://dx.doi.org/10.3390/s20082417.

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Covert timing channels are an important alternative for transmitting information in the world of the Internet of Things (IoT). In covert timing channels data are encoded in inter-arrival times between consecutive packets based on modifying the transmission time of legitimate traffic. Typically, the modification of time takes place by delaying the transmitted packets on the sender side. A key aspect in covert timing channels is to find the threshold of packet delay that can accurately distinguish covert traffic from legitimate traffic. Based on that we can assess the level of dangerous of secur

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19

Kim, Yeonjoo, and Guiling Wang. "Impact of Initial Soil Moisture Anomalies on Subsequent Precipitation over North America in the Coupled Land–Atmosphere Model CAM3–CLM3." Journal of Hydrometeorology 8, no. 3 (2007): 513–33. http://dx.doi.org/10.1175/jhm611.1.

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Abstract To investigate the impact of anomalous soil moisture conditions on subsequent precipitation over North America, a series of numerical experiments is performed using a modified version of the Community Atmosphere Model version 3 and the Community Land Model version 3 (CAM3–CLM3). First, the mechanisms underlying the impact of spring and summer soil moisture on subsequent precipitation are examined based on simulations starting on 1 April and 1 June, respectively. How the response of precipitation to initial soil moisture anomalies depends on the characteristics of such anomalies, inclu

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20

Charlier, Bruce L. A., François L. H. Tissot, Hauke Vollstaedt, Nicolas Dauphas, Colin J. N. Wilson, and Ren T. Marquez. "Survival of presolar p-nuclide carriers in the nebula revealed by stepwise leaching of Allende refractory inclusions." Science Advances 7, no. 28 (2021): eabf6222. http://dx.doi.org/10.1126/sciadv.abf6222.

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The 87Rb-87Sr radiochronometer provides key insights into the timing of volatile element depletion in planetary bodies, yet the unknown nucleosynthetic origin of Sr anomalies in Ca-Al–rich inclusions (CAIs, the oldest dated solar system solids) challenges the reliability of resulting chronological interpretations. To identify the nature of these Sr anomalies, we performed step-leaching experiments on nine unmelted CAIs from Allende. In six CAIs, the chemically resistant residues (0.06 to 9.7% total CAI Sr) show extreme positive μ84Sr (up to +80,655) and 87Sr variations that cannot be explained

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21

Kelleher, Michael E., Blanca Ayarzagüena, and James A. Screen. "Interseasonal Connections between the Timing of the Stratospheric Final Warming and Arctic Sea Ice." Journal of Climate 33, no. 8 (2020): 3079–92. http://dx.doi.org/10.1175/jcli-d-19-0064.1.

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AbstractConnections across seasons in atmospheric circulation and sea ice have long been sought to advance seasonal prediction. This study presents a link between the springtime stratosphere and Arctic sea ice in summer through autumn. The polar stratospheric vortex dominates the winter stratosphere before breaking down each spring, which is called the stratospheric final warming, as solar radiation returns to the pole. Interannual variability of this breakdown is dynamically driven, leading to different springtime tropospheric and surface circulation patterns. To examine the different impacts

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22

Hausman, Joshua K. "What Was Bad for General Motors Was Bad for America: The Automobile Industry and the 1937/38 Recession." Journal of Economic History 76, no. 2 (2016): 427–77. http://dx.doi.org/10.1017/s0022050716000577.

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This article shows that there were timing, geographic, and sectoral anomalies in the 1937/38 recession, none of which are easily explained by aggregate shocks. I argue that an auto industry supply shock contributed both to the recession's anomalies and to its severity. Labor-strife-induced wage increases and an increase in raw material costs led auto manufacturers to raise prices in fall 1937. Expectations of these price increases brought auto sales forward. When auto prices finally rose, sales plummeted. This shock likely reduced 1938 auto sales by roughly 600,000 units and 1938 GDP growth by

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23

Wu, Bo, Tianjun Zhou, and Tim Li. "Atmospheric Dynamic and Thermodynamic Processes Driving the Western North Pacific Anomalous Anticyclone during El Niño. Part II: Formation Processes." Journal of Climate 30, no. 23 (2017): 9637–50. http://dx.doi.org/10.1175/jcli-d-16-0495.1.

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In Part I, the authors showed that northerly anomalies associated with the Rossby wave response to El Niño heating anomalies in the equatorial central Pacific lead to the southward advection of low moist enthalpy air forming the western North Pacific anomalous anticyclone (WNPAC). Why does such a remote forcing not cause the formation of the anomalous anticyclone in El Niño–developing summer? The physical mechanism responsible for the timing of the WNPAC formation is investigated in Part II. Through both an observational analysis and idealized numerical model experiments, the authors find that

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Law, Eric K. C., Ryan K. L. Lee, Alex W. H. Ng, Deyond Y. W. Siu, and Ho-Keung Ng. "Atypical Intracranial Epidermoid Cysts: Rare Anomalies with Unique Radiological Features." Case Reports in Radiology 2015 (2015): 1–4. http://dx.doi.org/10.1155/2015/528632.

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Epidermoid cysts are benign slow growing extra-axial tumours that insinuate between brain structures, while their occurrences in intra-axial or intradiploic locations are exceptionally rare. We present the clinical, imaging, and pathological findings in two patients with atypical epidermoid cysts. CT and MRI findings for the first case revealed an intraparenchymal epidermoid cyst that demonstrated no restricted diffusion. The second case demonstrated an aggressive epidermoid cyst that invaded into the intradiploic spaces, transverse sinus, and the calvarium. The timing of ectodermal tissue seq

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Shi, Zhang, Wang, and Suolangtajie. "Subseasonal Influences of Teleconnection Patterns on the Boreal Wintertime Surface Air Temperature over Southern China as Revealed from Three Reanalysis Datasets." Atmosphere 10, no. 9 (2019): 514. http://dx.doi.org/10.3390/atmos10090514.

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The daily fields from three reanalysis datasets are utilized to explore the subseasonal influence of teleconnection patterns on the surface air temperature (SAT) over southern China. Due to the similarity of the results from the different datasets, the ensemble mean is then used in this study. After applying the false discovery rate to the significance test, the composite results reveal that positive Western Pacific (WP) events, East Atlantic (EA) events, Scandinavian (SCA) events, and Eastern Atlantic/Western Russia (EAWR) events are the teleconnection events that have an influence on SAT ano

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Ospina-Holguín, Javier Humberto, and Ana Milena Padilla-Ospina. "THE SEARCH FOR TIME-SERIES PREDICTABILITY-BASED ANOMALIES." Journal of Business Economics and Management 23, no. 1 (2021): 1–19. http://dx.doi.org/10.3846/jbem.2021.15650.

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This paper introduces a new algorithm for exploiting time-series predictability-based patterns to obtain an abnormal return, or alpha, with respect to a given benchmark asset pricing model. The algorithm proposes a deterministic daily market timing strategy that decides between being fully invested in a risky asset or in a risk-free asset, with the trading rule represented by a parametric perceptron. The optimal parameters are sought in-sample via differential evolution to directly maximize the alpha. Successively using two modern asset pricing models and two different portfolio weighting sche

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Santis, Wlademir, Paola Castellanos, and Edmo Campos. "Memory Effect of the Southern Atlantic Subtropical Dipole." Journal of Climate 33, no. 17 (2020): 7679–96. http://dx.doi.org/10.1175/jcli-d-19-0745.1.

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AbstractThe South Atlantic subtropical dipole is the dominant mode of coupled variability in the South Atlantic, connecting sea level pressure and sea surface temperature. Previous studies have shown its great relevance to the climate conditions over South America and West Africa. We have used several numerical experiments with the Hybrid Coordinate Ocean Model to investigate the effects that an austral winter–spring dipole asserts on the South Atlantic. We explore the interaction between SST anomalies and the formation of the fossilized mixing region, which preserve temperature anomalies unde

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Liu, Wenjie, Pengfei Lei, Dong Xu, and Xiaorong Zhu. "Anomaly Recognition, Diagnosis and Prediction of Massive Data Flow Based on Time-GAN and DBSCAN for Power Dispatching Automation System." Processes 11, no. 9 (2023): 2782. http://dx.doi.org/10.3390/pr11092782.

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Existing power anomaly detection is mainly based on analyzing static offline data. But this method takes a long time and has low identification accuracy when detecting timing and frequency anomalies, since this method requires offline screening, classification and preprocessing of the collected data, which is very laborious. Anomaly detection with supervised learning requires a large amount of abnormal data and cannot detect unknown anomalies. So, this paper innovatively proposes the idea of applying Time-series Generative Adversarial Networks (Time-GAN) in a dispatching automation system for

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Le Cras, Timothy D., and Elisa Boscolo. "Cellular and molecular mechanisms of PIK3CA-related vascular anomalies." Vascular Biology 1, no. 1 (2019): H33—H40. http://dx.doi.org/10.1530/vb-19-0016.

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The phosphoinositide 3-kinase (PI3K) pathway is a major mediator of growth factor signaling, cell proliferation and metabolism. Somatic gain-of-function mutations in PIK3CA, the catalytic subunit of PI3K, have recently been discovered in a number of vascular anomalies. The timing and origin of these mutations remain unclear although they are believed to occur during embryogenesis. The cellular origin of these lesions likely involves endothelial cells or an early endothelial cell lineage. This review will cover the diseases and syndromes associated with PIK3CA mutations and discuss the cellular

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Floriancic, Marius G., Wouter R. Berghuijs, Tobias Jonas, James W. Kirchner, and Peter Molnar. "Effects of climate anomalies on warm-season low flows in Switzerland." Hydrology and Earth System Sciences 24, no. 11 (2020): 5423–38. http://dx.doi.org/10.5194/hess-24-5423-2020.

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Abstract. Switzerland has faced extended periods of low river flows in recent years (2003, 2011, 2015 and 2018), with major economic and environmental consequences. Understanding the origins of events like these is important for water resources management. In this work, we provide data illustrating the individual and joint contributions of precipitation and evapotranspiration to low flows in both typical and dry years. To quantify how weather drives low flows, we explore how deviations from mean seasonal climate conditions (i.e., climate anomalies) of precipitation and potential evapotranspira

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Reid, Philip C., and Grégory Beaugrand. "Global synchrony of an accelerating rise in sea surface temperature." Journal of the Marine Biological Association of the United Kingdom 92, no. 7 (2012): 1435–50. http://dx.doi.org/10.1017/s0025315412000549.

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The oceans have shown a recent rapid and accelerating rise in temperature with, given the close link between temperature and marine organisms, pronounced effects on ecosystems. Here we describe for the first time a globally synchronous pattern of pulsed short period (~1 year long) emanations of warm sea surface temperature anomalies from tropical seas towards the poles on the shelf/slope with an intensification of the warming after the 1976/1977, 1986/1987 and 1997/1998 El Niños. On the eastern margins of continents the anomalies propagate towards the poles in part by largely baroclinic bounda

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Kim, Yeonjoo, and Guiling Wang. "Impact of Vegetation Feedback on the Response of Precipitation to Antecedent Soil Moisture Anomalies over North America." Journal of Hydrometeorology 8, no. 3 (2007): 534–50. http://dx.doi.org/10.1175/jhm612.1.

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Abstract Previous studies support a positive soil moisture–precipitation feedback over a major fraction of North America; that is, initial soil moisture anomalies lead to precipitation anomalies of the same sign. To investigate how vegetation feedback modifies the sensitivity of precipitation to initial soil moisture conditions over North America, a series of ensemble simulations are carried out using a modified version of the coupled Community Atmosphere Model–Community Land Model (CAM–CLM). The modified CLM includes a predictive vegetation phenology scheme so that the coupled model can repre

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Basdekidou, Vasiliki A. "Seasoned Equity Offerings as Technical Market Anomalies: Long-Term Temporal Trading Functionalities." International Journal of Economics and Finance 9, no. 1 (2016): 96. http://dx.doi.org/10.5539/ijef.v9n1p96.

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<p>The main goal of this paper is to approach the Seasoned Equity Offerings (SEO) trading opportunities as technical market anomalies and under the prism of a number of temporal (time-based) long-term trading functionalities (long-term TTF) introduced for the first time in corporate finance literature. The long-term is defined, for the purposes of this paper, as the 3-year time period, traded usually with daily, weekly and monthly time-frames. Trading is a temporal (i.e. time-based) historical living system with a number of functions, like: SEO, IPO, stock (instrument) price action Gaps,

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Renner, M., and C. Bernhofer. "Long term variability of the annual hydrological regime and sensitivity to temperature phase shifts in Saxony/Germany." Hydrology and Earth System Sciences 15, no. 6 (2011): 1819–33. http://dx.doi.org/10.5194/hess-15-1819-2011.

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Abstract. Recently, climatological studies report observational evidence of changes in the timing of the seasons, such as earlier timing of the annual cycle of surface temperature, earlier snow melt and earlier onset of the phenological spring season. Also hydrological studies report earlier timing and changes in monthly streamflows. From a water resources management perspective, there is a need to quantitatively describe the variability in the timing of hydrological regimes and to understand how climatic changes control the seasonal water budget of river basins. Here, the timing of hydrologic

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Obert, James, and Tom J. Mannos. "ASIC STA Path Verification Using Semi-Supervised Learning." International Journal of Semantic Computing 13, no. 02 (2019): 229–44. http://dx.doi.org/10.1142/s1793351x19400105.

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To counter manufacturing irregularities and ensure ASIC design integrity, it is essential that robust design verification methods are employed. It is possible to ensure such integrity using ASIC static timing analysis (STA) and machine learning. In this research, uniquely devised machine and statistical learning methods which quantify anomalous variations in Register Transfer Level (RTL) or Graphic Design System II (GDSII) format are discussed. To measure the variations in ASIC analysis data, the timing delays in relation to path electrical characteristics are explored. It is shown that semi-s

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Basdekidou, Vasiliki A. "The Overnight Return Temporal Market Anomaly." International Journal of Economics and Finance 9, no. 3 (2017): 1. http://dx.doi.org/10.5539/ijef.v9n3p1.

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The main goal of this paper is to introduce an innovative market anomaly relating to “time” during the overnight post-market session and therefore characterized as a temporal market anomaly. Anomalies in the markets appear from time to time and test the efficient market hypothesis. Many investors and traders believe that the markets follow the efficient market hypothesis. According to this theory the current price of a security (trading instrument) reflects all public and private information about that security (instrument). Changes in price are due to insider information, current news, or sud

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Wang, Qinghua, Pascal Rochat, and Xavier Stehlin. "Backup Hydrogen Maser Steering System for Galileo Precise Timing Facility." International Journal of Navigation and Observation 2008 (January 3, 2008): 1–6. http://dx.doi.org/10.1155/2008/730284.

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Two hydrogen masers (HMs) are used in the Precise Timing Facility to provide the physical realization of Galileo System Time, insuring the extremely high short-term stability required for the navigation functions. In order to allow a smooth switch over between backup and primary HMs, the “backup HM steering algorithm” is developed. This acquires the phase difference measured between two HMs, computes a steering correction, and generates the steering correction to the backup HM via a PicoStepper with a 0.1-picosecond resolution. The algorithm design is based on outlier removal and a proportiona

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Sarne, Ofer, Yehoshua Shapira, Sigalit Blumer, et al. "Supernumerary Teeth in the Maxillary Anterior Region: The Dilemma of Early Versus Late Surgical Intervention." Journal of Clinical Pediatric Dentistry 42, no. 1 (2018): 55–61. http://dx.doi.org/10.17796/1053-4628-42.1.10.

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Supernumerary teeth are the most common developmental dental anomalies in the maxillary anterior region causing interference to the developing permanent incisors resulting in poor dental and facial esthetics. Two different opinions regarding the timing for surgical removal of the supernumerary teeth are presented. In this case report, three brothers with supernumerary teeth in the maxillary anterior region are presented, their surgical and orthodontic management and outcome are discussed.

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Wang, Jing, Ning Fu, Ping Liang, and Mingcai Li. "Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin." Atmosphere 13, no. 8 (2022): 1293. http://dx.doi.org/10.3390/atmos13081293.

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The timing of the cessation of Meiyu is closely connected to the amount of Meiyu rainfall and the commencement of the rainy season in North China. Accurately forecasting the Meiyu withdrawal date (MWD) over the Yangtze–Huaihe River basin (YHRB) has significant implications for the prevention and mitigation of flooding in eastern China. This study observed an intimate out-of-phase relationship between MWD variations and early spring (March and April) Arctic Sea ice area (SIA) anomalies to the north of the Chukchi and Beaufort Seas, as well as SIA anomalies to the north of the Queen Elizabeth Is

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Voisin, Guillaume, René P. Breton, and Charlotte Summers. "A spider timing model: accounting for quadrupole deformations and relativity in close pulsar binaries." Monthly Notices of the Royal Astronomical Society 492, no. 2 (2019): 1550–65. http://dx.doi.org/10.1093/mnras/stz3430.

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ABSTRACT Spider millisecond pulsars are, along with some eclipsing post-common envelope systems and cataclysmic variables, part of an expanding category of compact binaries with low-mass companions for which puzzling timing anomalies have been observed. The most prominent type of irregularities seen in them are orbital period variations, a phenomenon which has been proposed to originate from changes in the gravitational quadrupole moment of the companion star. A physically sound modelling of the timing of these systems is key to understanding their structure and evolution. In this paper we arg

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Goldsmith, Shona, Guiomar Garcia Jalon, Nadia Badawi, et al. "Comprehensive investigation of congenital anomalies in cerebral palsy: protocol for a European-Australian population-based data linkage study (The Comprehensive CA-CP Study)." BMJ Open 8, no. 7 (2018): e022190. http://dx.doi.org/10.1136/bmjopen-2018-022190.

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IntroductionCerebral palsy (CP), an umbrella term for non-progressive conditions of cerebral origin resulting in motor impairments, is collectively the most common cause of physical disability in childhood. Cerebral and/or non-cerebral congenital anomalies are present in 15%–40% of children with CP. In order to identify effective prevention strategies for this substantial proportion of CP, a comprehensive understanding of the epidemiology of these congenital anomalies is required. International collaboration is needed, as previous attempts have fallen short due to a lack of power, since the an

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Wang, Muyin, James E. Overland, Vladimir Kattsov, John E. Walsh, Xiangdong Zhang, and Tatyana Pavlova. "Intrinsic versus Forced Variation in Coupled Climate Model Simulations over the Arctic during the Twentieth Century*." Journal of Climate 20, no. 6 (2007): 1093–107. http://dx.doi.org/10.1175/jcli4043.1.

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Abstract There were two major multiyear, Arctic-wide (60°–90°N) warm anomalies (&gt;0.7°C) in land surface air temperature (LSAT) during the twentieth century, between 1920 and 1950 and again at the end of the century after 1979. Reproducing this decadal and longer variability in coupled general circulation models (GCMs) is a critical test for understanding processes in the Arctic climate system and increasing the confidence in the Intergovernmental Panel on Climate Change (IPCC) model projections. This study evaluated 63 realizations generated by 20 coupled GCMs made available for the IPC

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Zheng, Zhengui, Brooke A. Armfield, and Martin J. Cohn. "Timing of androgen receptor disruption and estrogen exposure underlies a spectrum of congenital penile anomalies." Proceedings of the National Academy of Sciences 112, no. 52 (2015): E7194—E7203. http://dx.doi.org/10.1073/pnas.1515981112.

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Congenital penile anomalies (CPAs) are among the most common human birth defects. Reports of CPAs, which include hypospadias, chordee, micropenis, and ambiguous genitalia, have risen sharply in recent decades, but the causes of these malformations are rarely identified. Both genetic anomalies and environmental factors, such as antiandrogenic and estrogenic endocrine disrupting chemicals (EDCs), are suspected to cause CPAs; however, little is known about the temporal window(s) of sensitivity to EDCs, or the tissue-specific roles and downstream targets of the androgen receptor (AR) in external g

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Ren, Rongcai, Shuyue Sun, Yang Yang, and Qian Li. "Summer SST anomalies in the Indian Ocean and the seasonal timing of ENSO decay phase." Climate Dynamics 47, no. 5-6 (2015): 1827–44. http://dx.doi.org/10.1007/s00382-015-2935-0.

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Ihara, Chie, Yochanan Kushnir, Mark A. Cane, and Alexey Kaplan. "Timing of El Niño–Related Warming and Indian Summer Monsoon Rainfall." Journal of Climate 21, no. 11 (2008): 2711–19. http://dx.doi.org/10.1175/2007jcli1979.1.

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Abstract The relationship between all-India summer monsoon rainfall (ISMR) and the timing of (El Niño–Southern Oscillation) ENSO-related warming/cooling is investigated, using observational data during the period from 1881 to 1998. The analysis of the evolutions of Indo-Pacific sea surface temperature (SST) anomalies suggests that when ISMR is not below normal despite the co-occurrence of an El Niño event, warming over the eastern equatorial Pacific starts from boreal winter and evolves early so that the western-central Pacific and Indian Ocean are warmer than normal during the summer monsoon

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Papadopoulos, Gerassimos A., Apostolos Agalos, George Minadakis, Ioanna Triantafyllou, and Pavlos Krassakis. "Short-Term Foreshocks as Key Information for Mainshock Timing and Rupture: The Mw6.8 25 October 2018 Zakynthos Earthquake, Hellenic Subduction Zone." Sensors 20, no. 19 (2020): 5681. http://dx.doi.org/10.3390/s20195681.

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Significant seismicity anomalies preceded the 25 October 2018 mainshock (Mw = 6.8), NW Hellenic Arc: a transient intermediate-term (~2 yrs) swarm and a short-term (last 6 months) cluster with typical time-size-space foreshock patterns: activity increase, b-value drop, foreshocks move towards mainshock epicenter. The anomalies were identified with both a standard earthquake catalogue and a catalogue relocated with the Non-Linear Location (NLLoc) algorithm. Teleseismic P-waveforms inversion showed oblique-slip rupture with strike 10°, dip 24°, length ~70 km, faulting depth ~24 km, velocity 3.2 k

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Murphy, Kieran C., and Michael J. Owen. "Minor Physical Anomalies and their Relationship to the Aetiology of Schizophrenia." British Journal of Psychiatry 168, no. 2 (1996): 139–42. http://dx.doi.org/10.1192/bjp.168.2.139.

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BackgroundPrevious reports have suggested an increased prevalence of minor physical anomalies (MPAs) in schizophrenia.MethodA review of the literature was performed to examine the relationship between MPAs, schizophrenia and other disorders.ResultsPrevious studies demonstrate a number of methodological shortcomings. Moreover, MPAs are found in several other psychiatric disorders. Proponents of the neurodevelopmental model of schizophrenia have focused on an environmental explanation for the increased prevalence of MPAs. We argue that this may be overly simplistic and propose various ways in wh

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Feldman, Andrew F., Zhen Zhang, Yasuko Yoshida, Abhishek Chatterjee, and Benjamin Poulter. "Using Orbiting Carbon Observatory-2 (OCO-2) column CO₂ retrievals to rapidly detect and estimate biospheric surface carbon flux anomalies." Atmospheric Chemistry and Physics 23, no. 2 (2023): 1545–63. http://dx.doi.org/10.5194/acp-23-1545-2023.

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Abstract. The global carbon cycle is experiencing continued perturbations via increases in atmospheric carbon concentrations, which are partly reduced by terrestrial biosphere and ocean carbon uptake. Greenhouse gas satellites have been shown to be useful in retrieving atmospheric carbon concentrations and observing surface and atmospheric CO2 seasonal-to-interannual variations. However, limited attention has been placed on using satellite column CO2 retrievals to evaluate surface CO2 fluxes from the terrestrial biosphere without advanced inversion models at low latency. Such applications coul

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Resta, Mariachiara, Franca Dicuonzo, and Maurizio Resta. "Role of Magnetic Resonance Imaging in the Diagnosis of Fetal Brain Anomalies." Donald School Journal of Ultrasound in Obstetrics and Gynecology 11, no. 4 (2017): 328–40. http://dx.doi.org/10.5005/jp-journals-10009-1540.

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ABSTRACT Prenatal Ultrasonagraphy (US) is the mainstay modality to diagnose fetal abnormalities especially in early pregnancy. Fetal Magnetic Resonance Imaging (MRI) is a useful tool to confirm and to characterize a pathology that is suspected on US, especially in the detection of central nervous system pathologies. The use of ultrafast imaging tecniques gives additional importantant informations and optimal imaging quality, despite fetal motion, in clinical practice. Diffusion Weighted Imaging (DWI), Diffusion Tensor Imaging (DTI), MR Spetroscopy and Functional studies have potential applicat

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Short, Billie, Veena Manja, Satyan Lakshminrusimha, and Nithi Fernandes. "Critical Congenital Heart Disease Screening in NICU: Need for Revision and Standardization." American Journal of Perinatology 34, no. 14 (2017): 1470–76. http://dx.doi.org/10.1055/s-0037-1603654.

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AbstractScreening for critical congenital heart disease (CCHD) at 24 to 48 hours after birth or before discharge in newborn nurseries using pulse oximetry is effective and is mandated by most states. However, there is no established protocol for screening in a neonatal intensive care unit (NICU), a setting where neonates are continuously monitored by pulse oximetry, hypoxemia from noncardiac causes is common, and echocardiograms are frequently obtained. CCHDs with hypoxemia are suspected on admission and investigated with an echocardiogram before a formal screen in the NICU. The most common CC

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