Evaluation of data obtained from military disability medical administrative databases for service members with schizophrenia or bipolar disorder.

PubMed

Millikan, Amy M; Weber, Natalya S; Niebuhr, David W; Torrey, E Fuller; Cowan, David N; Li, Yuanzhang; Kaminski, Brenda

2007-10-01

We are studying associations between selected biomarkers and schizophrenia or bipolar disorder among military personnel. To assess potential diagnostic misclassification and to estimate the date of illness onset, we reviewed medical records for a subset of cases. Two psychiatrists independently reviewed 182 service medical records retrieved from the Department of Veterans Affairs. Data were evaluated for diagnostic concordance between database diagnoses and reviewers. Interreviewer variability was measured by using proportion of agreement and the kappa statistic. Data were abstracted to estimate date of onset. High levels of agreement existed between database diagnoses and reviewers (proportion, 94.7%; kappa = 0.88) and between reviewers (proportion, 92.3%; kappa = 0.87). The median time between illness onset and initiation of medical discharge was 1.6 and 1.1 years for schizophrenia and bipolar disorder, respectively. High levels of agreement between investigators and database diagnoses indicate that diagnostic misclassification is unlikely. Discharge procedure initiation date provides a suitable surrogate for disease onset.

Radiometric dating of the Siloam Tunnel, Jerusalem.

PubMed

Frumkin, Amos; Shimron, Aryeh; Rosenbaum, Jeff

2003-09-11

The historical credibility of texts from the Bible is often debated when compared with Iron Age archaeological finds (refs. 1, 2 and references therein). Modern scientific methods may, in principle, be used to independently date structures that seem to be mentioned in the biblical text, to evaluate its historical authenticity. In reality, however, this approach is extremely difficult because of poor archaeological preservation, uncertainty in identification, scarcity of datable materials, and restricted scientific access into well-identified worship sites. Because of these problems, no well-identified Biblical structure has been radiometrically dated until now. Here we report radiocarbon and U-Th dating of the Siloam Tunnel, proving its Iron Age II date; we conclude that the Biblical text presents an accurate historic record of the Siloam Tunnel's construction. Being one of the longest ancient water tunnels lacking intermediate shafts, dating the Siloam Tunnel is a key to determining where and when this technological breakthrough took place. Siloam Tunnel dating also refutes a claim that the tunnel was constructed in the second century bc.

Reading a 400,000-year record of earthquake frequency for an intraplate fault

NASA Astrophysics Data System (ADS)

Williams, Randolph T.; Goodwin, Laurel B.; Sharp, Warren D.; Mozley, Peter S.

2017-05-01

Our understanding of the frequency of large earthquakes at timescales longer than instrumental and historical records is based mostly on paleoseismic studies of fast-moving plate-boundary faults. Similar study of intraplate faults has been limited until now, because intraplate earthquake recurrence intervals are generally long (10s to 100s of thousands of years) relative to conventional paleoseismic records determined by trenching. Long-term variations in the earthquake recurrence intervals of intraplate faults therefore are poorly understood. Longer paleoseismic records for intraplate faults are required both to better quantify their earthquake recurrence intervals and to test competing models of earthquake frequency (e.g., time-dependent, time-independent, and clustered). We present the results of U-Th dating of calcite veins in the Loma Blanca normal fault zone, Rio Grande rift, New Mexico, United States, that constrain earthquake recurrence intervals over much of the past ˜550 ka—the longest direct record of seismic frequency documented for any fault to date. The 13 distinct seismic events delineated by this effort demonstrate that for >400 ka, the Loma Blanca fault produced periodic large earthquakes, consistent with a time-dependent model of earthquake recurrence. However, this time-dependent series was interrupted by a cluster of earthquakes at ˜430 ka. The carbon isotope composition of calcite formed during this seismic cluster records rapid degassing of CO2, suggesting an interval of anomalous fluid source. In concert with U-Th dates recording decreased recurrence intervals, we infer seismicity during this interval records fault-valve behavior. These data provide insight into the long-term seismic behavior of the Loma Blanca fault and, by inference, other intraplate faults.

Toward a Late Quaternary tephrostratigraphic framework for East African palaeoenvironmental records

NASA Astrophysics Data System (ADS)

Lane, Christine; Martin-Jones, Catherine; Johnson, Thomas; Lamb, Henry; Pearce, Nick; Scholz, Christopher; Smith, Victoria; Verschuren, Dirk

2015-04-01

Understanding the spatial and temporal variability of climate forcing and environmental response across a continent as climatically diverse as Africa relies upon comparison of data from widespread palaeoenvironmental archives. Accurate, precise and independent chronologies for such records are essential; however this remains a challenge in many environments, often preventing the valid comparison of detailed palaeo-proxy records. Many studies have now shown that volcanic ash (tephra) can be detected in terrestrial and marine sediments thousands of kilometres from their source, often as microscopic or "cryptic" layers. As well as offering opportunities for both direct (e.g. by 40Ar/39Ar methods) and indirect (e.g. by associated 14C dates) dating of the sediment sequence, tephra layers can provide stratigraphic tie-lines between archives, facilitating precise correlations at single moments in time. Furthermore, where two or more tephra layers are co-located in multiple records, rates of change can be compared within a period of equivalent duration, even in the absence of absolute age estimates. Investigations into the presence of visible and non-visible (crypto-) tephra layers within lacustrine palaeoenvironmental records of the last ~150 ka BP from across East Africa are revealing the potential for this approach to (i) correlate palaeoclimate archives from across and beyond tropical Africa within a regional tephrostratigraphic framework; (ii) provide age constraints for individual core chronologies, in particular beyond the limits of radiocarbon dating; and (iii) increase our knowledge of the history of Late Quaternary explosive volcanism in East Africa.

Lacustrine Records of Holocene Mountain Glacier Fluctuations from Western Greenland

NASA Astrophysics Data System (ADS)

Schweinsberg, A.; Briner, J. P.; Bennike, O.

2014-12-01

Recent studies have focused on documenting fluctuations of the Greenland Ice Sheet margin throughout the Holocene but few data exist that constrain past changes of local glaciers independent of the ice sheet. Our research combines proglacial lake sediment analysis with cosmogenic 10Be dating of Holocene moraines and radiocarbon dating of ice-cap-killed vegetation with an overall objective to use this multi-proxy approach to generate a detailed record of the coupled climate-glacier system through the Holocene. Here, we present lacustrine records of mountain glacier variability from continuous pro-glacial lake sediment sequences recovered from two glaciated catchments in northeastern Nuussuaq, western Greenland. We use radiocarbon-dated sediments from Sikuiui and Pauiaivik lakes to reconstruct the timing of advance and retreat of local glaciers. Sediments were characterized with magnetic susceptibility (MS), gamma density, Itrax XRF and visible reflectance spectroscopy at 0.2 cm intervals and sediment organic matter at 0.5 cm intervals. Basal radiocarbon ages provide minimum-age constraints on deglaciation from Sikuiui and Pauiaivik lakes of ~9.6 and 8.7 ka, respectively. Organic-rich gyttja from deglaciation until ~5.0 ka in Pauiaivik Lake suggests minimal glacial extent there while slightly elevated MS values from ~9.0 - 7.0 ka in Sikuiui Lake may reflect early Holocene glacial advances. Minerogenic sediment input gradually increases starting at ~5.0 ka in Pauiaivik Lake, which we interpret as the onset of Neoglaciation in the catchment. Furthermore, a distinct episode of enhanced glacial activity from ~4.0 - 2.2 ka in Sikuiui Lake may be correlative to a period of persistent snowline lowering evidenced by radiocarbon dates of ice-killed vegetation from nearby ice cap margins. Results from these lacustrine records and our ice-killed vegetation dataset suggest a middle Holocene onset of Neoglaciation ~5.0 - 4.0 ka in this region. We are supplementing these records with cosmogenic 10Be exposure dating to further constrain the timing of deglaciation. In addition, these sedimentary archives will continue to be compared to radiocarbon dates of ice-killed vegetation along adjacent ice cap margins to determine if times of persistent snowline lowering are correlative to periods of glacier advance.

Critical porosity of gas enclosure in polar firn independent of climate

NASA Astrophysics Data System (ADS)

Florian Schaller, Christoph; Freitag, Johannes; Eisen, Olaf

2017-11-01

In order to interpret the paleoclimatic record stored in the air enclosed in polar ice cores, it is crucial to understand the fundamental lock-in process. Within the porous firn, bubbles are sealed continuously until the respective horizontal layer reaches a critical porosity. Present-day firn air models use a postulated temperature dependence of this value as the only parameter to adjust to the surrounding conditions of individual sites. However, no direct measurements of the firn microstructure could confirm these assumptions. Here we show that the critical porosity is a climate-independent constant by providing an extensive data set of micrometer-resolution 3-D X-ray computer tomographic measurements for ice cores representing different extremes of the temperature and accumulation ranges. We demonstrate why indirect measurements suggest a climatic dependence and substantiate our observations by applying percolation theory as a theoretical framework for bubble trapping. The incorporation of our results significantly influences the dating of trace gas records, changing gas-age-ice-age differences by up to more than 1000 years. This may further help resolve inconsistencies, such as differences between East Antarctic δ15N records (as a proxy for firn height) and model results. We expect our findings to be the basis for improved firn air and densification models, leading to lower dating uncertainties. The reduced coupling of proxies and surrounding conditions may allow for more sophisticated reinterpretations of trace gas records in terms of paleoclimatic changes and will benefit the development of new proxies, such as the air content as a marker of local insolation.

Nūr Ud-Dīn Jahāngīr and Father Kirwitzer: the independent discovery of the Great Comets of November 1618 and the first astronomical use of the telescope in India

NASA Astrophysics Data System (ADS)

Kapoor, R. C.

2016-12-01

The year 1618 in astronomy was a unique one in that it presented three bright cometary apparitions in quick succession. The comets created a sensation, and belonged to an era when Galileo's telescopic observations had created a paradigm shift in our perception of the heavens and Johannes Kepler was introducing a fundamental change in mathematical astronomy by redefining orbits of planets around the Sun. This paper is an account of the observations of two of the three great comets of 1618, made from India. This turned out to be a unique occasion because these same targets of opportunity were followed independently by astronomers from two very different 'schools', and their observations were recorded quantitatively. Jahāngīr, the fourth Mughal Emperor of India, recorded in the Tūzūk-i Jahāngīrī (The Memoirs of Jahāngīr), the appearance of two comets during a Royal journey from the town of Dohad in Gujarat to Agra, the capital city of the Empire, in the thirteenth year of his accession. From the recorded dates, Jahāngīr turns out to be an independent discoverer of two great comets that appeared one after the other in November 1618. Meanwhile, Father Venceslaus Kirwitzer and fellow Jesuits observed these comets from Goa, and their first observations also correspond to the discovery dates of the comets. These same comets also were followed by Father Antonius Rubinus from Cochin. Fr. Kirwitzer collated and published these observations in 1620 in a short treatise where he states that he also viewed these comets with a 'tubo optico'. This is the first recorded use of a telescope in India.

Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution

PubMed Central

Langergraber, Kevin E.; Prüfer, Kay; Rowney, Carolyn; Boesch, Christophe; Crockford, Catherine; Fawcett, Katie; Inoue, Eiji; Inoue-Muruyama, Miho; Mitani, John C.; Muller, Martin N.; Robbins, Martha M.; Schubert, Grit; Stoinski, Tara S.; Viola, Bence; Watts, David; Wittig, Roman M.; Wrangham, Richard W.; Zuberbühler, Klaus; Pääbo, Svante; Vigilant, Linda

2012-01-01

Fossils and molecular data are two independent sources of information that should in principle provide consistent inferences of when evolutionary lineages diverged. Here we use an alternative approach to genetic inference of species split times in recent human and ape evolution that is independent of the fossil record. We first use genetic parentage information on a large number of wild chimpanzees and mountain gorillas to directly infer their average generation times. We then compare these generation time estimates with those of humans and apply recent estimates of the human mutation rate per generation to derive estimates of split times of great apes and humans that are independent of fossil calibration. We date the human–chimpanzee split to at least 7–8 million years and the population split between Neanderthals and modern humans to 400,000–800,000 y ago. This suggests that molecular divergence dates may not be in conflict with the attribution of 6- to 7-million-y-old fossils to the human lineage and 400,000-y-old fossils to the Neanderthal lineage. PMID:22891323

Palaeomagnetic dating method accounting for post-depositional remanence and its application to geomagnetic field modelling

NASA Astrophysics Data System (ADS)

Nilsson, A.; Suttie, N.

2016-12-01

Sedimentary palaeomagnetic data may exhibit some degree of smoothing of the recorded field due to the gradual processes by which the magnetic signal is `locked-in' over time. Here we present a new Bayesian method to construct age-depth models based on palaeomagnetic data, taking into account and correcting for potential lock-in delay. The age-depth model is built on the widely used "Bacon" dating software by Blaauw and Christen (2011, Bayesian Analysis 6, 457-474) and is designed to combine both radiocarbon and palaeomagnetic measurements. To our knowledge, this is the first palaeomagnetic dating method that addresses the potential problems related post-depositional remanent magnetisation acquisition in age-depth modelling. Age-depth models, including site specific lock-in depth and lock-in filter function, produced with this method are shown to be consistent with independent results based on radiocarbon wiggle match dated sediment sections. Besides its primary use as a dating tool, our new method can also be used specifically to identify the most likely lock-in parameters for a specific record. We explore the potential to use these results to construct high-resolution geomagnetic field models based on sedimentary palaeomagnetic data, adjusting for smoothing induced by post-depositional remanent magnetisation acquisition. Potentially, this technique could enable reconstructions of Holocene geomagnetic field with the same amplitude of variability observed in archaeomagnetic field models for the past three millennia.

Geomagnetic paleointensity dating of South China Sea sediments for the last 130 kyr

NASA Astrophysics Data System (ADS)

Xiaoqiang, Yang; Heller, Friedrich; Nengyou, Wu; Jie, Yang; Zhihua, Su

2009-06-01

Relative paleointensity records from the northern South China Sea, northwest Pacific Ocean were studied in two gravity piston cores. Continuous mineral magnetic and paleomagnetic measurements were made using discrete sediment samples. Detailed rock magnetic parameters, such as thermomagnetic and high-field hysteresis data, indicate that pseudo-single domain magnetite in a narrow range of grain-size and concentration is the main contributor to the remanent magnetization. The uniform magnetic mineralogy meets the commonly accepted criteria for establishing relative paleointensity records. The relative paleointensity (RPI) curves were constructed by normalizing the natural remanent magnetization (NRM) with isothermal remanent magnetization (IRM), both in the 20-60 mT demagnetization state. Dating constraints have been provided by radiocarbon ages in the upper 400 cm of both cores. Furthermore, we have correlated our paleointensity records with NAPIS-75, S.Atlantic-1089, Sint-200 and NOPAPIS-250 to determine the chronological RPI framework for the South China Sea (SCS-PIS). Although some temporal offsets of paleointensity features between the different records have been recognized, their similar shape suggests that relative paleointensity on the 10 3-10 4 year scale is globally coherent and can provide an age framework for sediments independent of δ18O ages.

Rapid coupling between ice volume and polar temperature over the past 150,000 years.

PubMed

Grant, K M; Rohling, E J; Bar-Matthews, M; Ayalon, A; Medina-Elizalde, M; Ramsey, C Bronk; Satow, C; Roberts, A P

2012-11-29

Current global warming necessitates a detailed understanding of the relationships between climate and global ice volume. Highly resolved and continuous sea-level records are essential for quantifying ice-volume changes. However, an unbiased study of the timing of past ice-volume changes, relative to polar climate change, has so far been impossible because available sea-level records either were dated by using orbital tuning or ice-core timescales, or were discontinuous in time. Here we present an independent dating of a continuous, high-resolution sea-level record in millennial-scale detail throughout the past 150,000 years. We find that the timing of ice-volume fluctuations agrees well with that of variations in Antarctic climate and especially Greenland climate. Amplitudes of ice-volume fluctuations more closely match Antarctic (rather than Greenland) climate changes. Polar climate and ice-volume changes, and their rates of change, are found to covary within centennial response times. Finally, rates of sea-level rise reached at least 1.2 m per century during all major episodes of ice-volume reduction.

Magmatic Longevity Constrained by ID-TIMS U-Pb Dating of Zircon and Titanite

NASA Astrophysics Data System (ADS)

Szymanowski, D.; Wotzlaw, J. F.; Ellis, B. S.; Bachmann, O.; Von Quadt, A.

2016-12-01

Clues about the timescales and thermal conditions associated with the growth and evacuation of large silicic magma reservoirs are frequently drawn from radiometric dating, diffusion modelling, or thermomechanical modelling. A growing amount of petrological and geochronological evidence, supported by thermal modelling, suggests that many silicic magma reservoirs may exist for some 104-106 years in the form of high-crystallinity mushes at relatively low temperatures ( 700-750°C; [1-3]). Geochronological studies addressing this issue typically utilise the U-Pb system in zircon capable of recording extended periods of crystallisation, particularly in evolved calc-alkaline systems that spend most of their lifetime zircon-saturated. In this study, we integrate U-Pb dating of zircon and titanite to investigate the longevity of the magma reservoir that produced the Kneeling Nun Tuff, a 35 Ma, >900 km3 crystal-rich rhyolitic super-eruption from the Mogollon-Datil volcanic field in New Mexico (USA). High-precision ID-TIMS U-Pb dates of single crystals of both zircon and titanite independently record a continuous crystallisation history over >400,000 years. We combine the dating of both accessory phases with textural, major, trace element and isotopic studies of single crystals, placing tight constraints on the thermal conditions of magma accumulation and storage while recording differentiation and rejuvenation processes within the magma reservoir. The results suggest a protracted `cool' upper-crustal storage of magma prior to the Kneeling Nun Tuff eruption followed by a melting event which reduced the magma crystallinity and conditioned it for eruption. [1] Bachmann & Bergantz (2004), J. Petrol. 45, 1565-1582. [2] Gelman et al. (2013), Geology 41, 759-762. [3] Cooper & Kent (2014), Nature 506, 480-483.

The timing of termination I in benthic δ18O of the Atlantic, Pacific, and Mediterranean basins

NASA Astrophysics Data System (ADS)

Konijnendijk, T.

2014-12-01

Terminations used to be regarded as effectively globally synchronous events. As such they were used (amongst other features) in aligning cores by Lisiecki and Raymo (2005) in their widely accepted global benthic stack. Skinner and Shackleton (2005) showed, however, that this assumption of synchronicity may not hold. In a detailed study of the last glacial-interglacial transition, an Atlantic record from the Iberian Margin and a record from the deep eastern equatorial Pacific - both dated by 14C for a solid, independent age estimate - show a significant discrepancy in timing: ~4,000 years. Indeed, in 2009 Lisiecki and Raymo published a separate reconstruction for the Atlantic and Pacific records in their stack, and found indications for diachronous termination signals for the last five terminations. We compared the Atlantic and Pacific records of Skinner and Shackleton (2005) to the benthic isotope record of ODP site 968 in the eastern Mediterranean published by Ziegler et al. (2010), to see how the Mediterranean record feeds into this discussion. The age model for this record is constrained by the carbon dated boundaries of saproprel 1 as well as correlation to the radiometrically dated cave record of Sanbao-Hulu (Wang et al., 2008). The benthic δ18O record of ODP site 968 resembles the Pacific record much more than the geographically closer Iberian Margin record. This raises questions: whether the Late Glacial/Early Holocene benthic record of MD99-2334K on the Iberian Margin is representative of Atlantic benthic δ18O; what oceanographic factors could have influenced the benthic δ18O of the sites involved; whether there is, after all, a globally synchronous, two-step deglaciation in the Mediterranean, Atlantic, and Pacific basins. Lisiecki and Raymo, 2005. DOI: 10.1029/2004PA001071 Lisiecki and Raymo, 2005. DOI: 10.1029/2009PA001732 Skinner and Shackleton, 2005: DOI: 10.1016/j.quascirev.2004.11.008 Wang et al. 2008: doi:10.1038/nature06692. Ziegler et al., 2010: DOI: 10.1016/j.quascirev.2010.03.011

East Asian astronomical records

NASA Astrophysics Data System (ADS)

Stephenson, F. Richard

Chinese, Japanese and Korean celestial observations have made major contributions to Applied Historical Astronomy, especially in the study of supernovae, comets, Earth's rotation (using eclipses) and solar variability (via sunspots and aurorae). Few original texts now survive; almost all extant records exist only in printed versions, often with the loss of much detail. The earliest Chinese astronomical observations extend back to before 1000 BC. However, fairly systematic records are only available since 200 BC - and even these have suffered losses through wars, etc. By around AD 800, many independent observations are available from Japan and Korea and these provide a valuable supplement to the Chinese data. Throughout East Asia dates were expressed in terms of a luni-solar calendar and conversion to the Julian or Gregorian calendar can be readily effected.

Monitoring and evaluating surgical care: defining perioperative mortality rate and standardising data collection.

PubMed

Palmqvist, Charlotta L; Ariyaratnam, Roshan; Watters, David A; Laing, Grant L; Stupart, Douglas; Hider, Phil; Ng-Kamstra, Joshua S; Wilson, Leona; Clarke, Damian L; Hagander, Lars; Greenberg, Sarah L M; Gruen, Russell L

2015-04-27

Case volume per 100 000 population and perioperative mortality rate (POMR) are key indicators to monitor and strengthen surgical services. However, comparisons of POMR have been restricted by absence of standardised approaches to when it is measured, the ideal denominator, need for risk adjustment, and whether data are available. We aimed to address these issues and recommend a minimum dataset by analysing four large mixed surgical datasets, two from well-resourced settings with sophisticated electronic patient information systems and two from resource-limited settings where clinicians maintain locally developed databases. We obtained data from the New Zealand (NZ) National Minimum Dataset, the Geelong Hospital patient management system in Australia, and purpose-built surgical databases in Pietermaritzburg, South Africa (PMZ) and Port Moresby, Papua New Guinea (PNG). Information was sought on inclusion and exclusion criteria, coding criteria, and completeness of patient identifiers, admission, procedure, discharge and death dates, operation details, urgency of admission, and American Society of Anesthesiologists (ASA) score. Date-related errors were defined as missing dates and impossible discrepancies. For every site, we then calculated the POMR, the effect of admission episodes or procedures as denominator, and the difference between in-hospital POMR and 30-day POMR. To determine the need for risk adjustment, we used univariate and multivariate logistic regression to assess the effect on relative POMR for each site of age, admission urgency, ASA score, and procedure type. 1 365 773 patient admissions involving 1 514 242 procedures were included, among which 8655 deaths were recorded within 30 days. Database inclusion and exclusion criteria differed substantially. NZ and Geelong records had less than 0·1% date-related errors and greater than 99·9% completeness. PMZ databases had 99·9% or greater completeness of all data except date-related items (94·0%). PNG had 99·9% or greater completeness for date of birth or age and admission date and operative procedure, but 80-83% completeness of patient identifiers and date related items. Coding of procedures was not standardised, and only NZ recorded ASA status and complete post-discharge mortality. In-hospital POMR range was 0·38% in NZ to 3·44% in PMZ, and in NZ it underestimated 30-day POMR by roughly a third. The difference in POMR by procedures instead of admission episodes as denominator ranged from 10% to 70%. Age older than 65 years and emergency admission had large independent effects on POMR, but relatively little effect in multivariate analysis on the relative odds of in-hospital death at each site. Hospitals can collect and provide data for case volume and POMR without sophisticated electronic information systems. POMR should initially be defined by in-hospital mortality because post-discharge deaths are not usually recorded, and with procedures as denominator because details allowing linkage of several operations within one patient's admission are not always present. Although age and admission urgency are independently associated with POMR, and ASA and case mix were not included, risk adjustment might not be essential because the relative odds between sites persisted. Standardisation of inclusion criteria and definitions is needed, as is attention to accuracy and completeness of dates of procedures, discharge and death. A one-page, paper-based form, or alternatively a simple electronic data collection form, containing a minimum dataset commenced in the operating theatre could facilitate this process. None. Copyright © 2015 Elsevier Ltd. All rights reserved.

Clinical challenges associated with incorporation of nonradiology images into the electronic medical record

NASA Astrophysics Data System (ADS)

Siegel, Eliot L.; Reiner, Bruce I.

2001-08-01

To date, the majority of Picture Archival and Communication Systems (PACS) have been utilized only for capture, storage, and display of radiology and in some cases, nuclear medicine images. Medical images for other subspecialty areas are currently stored in local, independent systems, which typically are not accessible throughout the healthcare enterprise and do not communicate with other hospital information or image management systems. It is likely that during the next few years, healthcare centers will expand PAC system capability to incorporate these multimedia data or alternatively, hospital-wide electronic patient record systems will be able to provide this function.

Exploring how sand ramps respond to Quaternary environmental change in Southern Africa

NASA Astrophysics Data System (ADS)

Rowell, Alex; Thomas, David; Bailey, Richard

2014-05-01

The current climate of southern Africa is particularly complex and interesting due to the interaction of several climatic systems. However, reconstructions of how these systems behaved in the past, and how the environment responded, have been hampered by a general paucity of records and poor chronological control. Sand ramps may provide the potential to improve palaeoenvironmental reconstructions of southern Africa (and beyond). Formed against a topographic barrier, sand ramps include a combination of aeolian, fluvial and colluvial deposits in varying proportions. Therefore, they have the potential to record changes in moisture availability, circulation patterns and sediment supply which can be independently dated using luminescence dating. Nevertheless relatively little attention has been paid to these features and thus the environmental controls on their formation are not yet fully understood. In particular, there is debate as to whether they reflect deposition during a 'window of opportunity' in which high-magnitude, low-frequency events are recorded (Bateman et al. 2012) or whether they record more gradual, cyclic climate change (Bertram, 2003) or even if there is a uniform control on their formation. This research aims to investigate how sand ramps respond to environmental change and what they can tell us about the paleoenvironment of southern Africa. This poster displays preliminary results based on initial field investigation. This confirmed sand ramps to be ubiquitous in southern Africa and that they record a complex interaction of aeolian, fluvial and colluvial deposits which appears to differ between sand ramps. Preliminary luminescence dating results and sedimentology are displayed for two sand ramps, one from south west Namibia the other from the Karoo region of South Africa.

The ACER pollen and charcoal database: a global resource to document vegetation and fire response to abrupt climate changes during the last glacial period

NASA Astrophysics Data System (ADS)

Sánchez Goñi, María Fernanda; Desprat, Stéphanie; Daniau, Anne-Laure; Bassinot, Frank C.; Polanco-Martínez, Josué M.; Harrison, Sandy P.; Allen, Judy R. M.; Anderson, R. Scott; Behling, Hermann; Bonnefille, Raymonde; Burjachs, Francesc; Carrión, José S.; Cheddadi, Rachid; Clark, James S.; Combourieu-Nebout, Nathalie; Mustaphi, Colin. J. Courtney; Debusk, Georg H.; Dupont, Lydie M.; Finch, Jemma M.; Fletcher, William J.; Giardini, Marco; González, Catalina; Gosling, William D.; Grigg, Laurie D.; Grimm, Eric C.; Hayashi, Ryoma; Helmens, Karin; Heusser, Linda E.; Hill, Trevor; Hope, Geoffrey; Huntley, Brian; Igarashi, Yaeko; Irino, Tomohisa; Jacobs, Bonnie; Jiménez-Moreno, Gonzalo; Kawai, Sayuri; Kershaw, A. Peter; Kumon, Fujio; Lawson, Ian T.; Ledru, Marie-Pierre; Lézine, Anne-Marie; Liew, Ping Mei; Magri, Donatella; Marchant, Robert; Margari, Vasiliki; Mayle, Francis E.; Merna McKenzie, G.; Moss, Patrick; Müller, Stefanie; Müller, Ulrich C.; Naughton, Filipa; Newnham, Rewi M.; Oba, Tadamichi; Pérez-Obiol, Ramón; Pini, Roberta; Ravazzi, Cesare; Roucoux, Katy H.; Rucina, Stephen M.; Scott, Louis; Takahara, Hikaru; Tzedakis, Polichronis C.; Urrego, Dunia H.; van Geel, Bas; Valencia, B. Guido; Vandergoes, Marcus J.; Vincens, Annie; Whitlock, Cathy L.; Willard, Debra A.; Yamamoto, Masanobu

2017-09-01

Quaternary records provide an opportunity to examine the nature of the vegetation and fire responses to rapid past climate changes comparable in velocity and magnitude to those expected in the 21st-century. The best documented examples of rapid climate change in the past are the warming events associated with the Dansgaard-Oeschger (D-O) cycles during the last glacial period, which were sufficiently large to have had a potential feedback through changes in albedo and greenhouse gas emissions on climate. Previous reconstructions of vegetation and fire changes during the D-O cycles used independently constructed age models, making it difficult to compare the changes between different sites and regions. Here, we present the ACER (Abrupt Climate Changes and Environmental Responses) global database, which includes 93 pollen records from the last glacial period (73-15 ka) with a temporal resolution better than 1000 years, 32 of which also provide charcoal records. A harmonized and consistent chronology based on radiometric dating (14C, 234U/230Th, optically stimulated luminescence (OSL), 40Ar/39Ar-dated tephra layers) has been constructed for 86 of these records, although in some cases additional information was derived using common control points based on event stratigraphy. The ACER database compiles metadata including geospatial and dating information, pollen and charcoal counts, and pollen percentages of the characteristic biomes and is archived in Microsoft AccessTM at https://doi.org/10.1594/PANGAEA.870867.

A Chronology of Late-Glacial and Holocene Advances of Quelccaya Ice Cap, Peru, Based on 10Be and Radiocarbon Dating

NASA Astrophysics Data System (ADS)

Kelly, M. A.; Lowell, T. V.; Schaefer, J. M.

2007-12-01

The Quelccaya Ice Cap region in the southeastern Peruvian Andes (~13-14°S latitude) is a key location for the development of late-glacial and Holocene terrestrial paleoclimate records in the tropics. We present a chronology of past extents of Quelccaya Ice Cap based on ~thirty internally consistent 10Be dates of boulders on moraines and bedrock as well as twenty radiocarbon dates of organic material associated with moraines. Based on results from both dating methods, we suggest that significant advances of Quelccaya Ice Cap occurred during late-glacial time, at ~12,700-11,400 yr BP, and during Late Holocene time ~400-300 yr BP. Radiocarbon dating of organic material associated with moraines provides maximum and minimum ages for ice advances and recessions, respectively, thus providing an independent check on 10Be dates of boulders on moraines. The opportunity to use both 10Be and radiocarbon dating makes the Quelccaya Ice Cap region a potentially important low-latitude calibration site for production rates of cosmogenic nuclides. Our radiocarbon chronology provides a tighter constraint on maximum ages of late-glacial and Late Holocene ice advances. Upcoming field research will obtain organic material for radiocarbon dating to improve minimum age constrains for late-glacial and Late Holocene ice recessions.

Two modes of orogenic collapse of the Pamir plateau recorded by titanite

NASA Astrophysics Data System (ADS)

Stearns, M. A.; Hacker, B. R.; Ratschbacher, L.; Rutte, D.; Kylander-Clark, A. R.

2013-12-01

Processes that operate in the mid- to lower crust during and following continent-continent collision are important for understanding how orogenic plateaux transition from thickening to collapse. In the central and southern Pamir, mid- to lower crustal rocks crop out in two belts of extensional domes. The central Pamir domes were exhumed by symmetrical N-S extension. In contrast, the southern Pamir domes were exhumed by asymmetrical top to the south (NNW-SSE) extension via a rolling-hinge detachment. To investigate the high-temperature exhumation history, titanites were dated using LASS (laser ablation split stream-ICP-MS). A multi-collector ICP was used to collect U-Pb isotopic ratios and a single collector ICP-MS was used to measure trace-element abundances. The data indicate that the central Pamir domes began exhumation synchronously at ~17 Ma. Titanite from the southern Pamir record two periods of protracted (re)crystallization: older metamorphic dates ranging from ~35-18 Ma and younger igneous and metamorphic dates from ~15-7 Ma. Samples with single populations of titanite dates are present throughout both groups. Samples with more-complex date populations typically have distinct trace-element (e.g., Sr, Y, Zr, and Nb) groups that can be used to distinguish different date populations (e.g., older dates may have higher Zr and younger dates lower Zr). The distinct early exhumation histories of the north and south Pamir require either a diachronous single process or two semi-independent processes. The N to S sequence of exhumation, ranges of dates, and overall extension directions may be related to two important plate-tectonic events inferred from seismic data: 1) breakoff of the northward subducting Indian slab around ~20 Ma, and 2) southward subduction and northwestward rollback of the Asian lithosphere between ~15-10 Ma based on geodetic convergence rates and Benioff zone length. We interpret these two lithospheric-detachment events to have driven the exhumation in the Pamir by changing the gravitational potential energy and boundary forces of the plateau.

Post-Glacial and Paleo-Environmental History of the West Coast of Vancouver Island

NASA Astrophysics Data System (ADS)

Dallimore, A.; Enkin, R. J.

2005-12-01

Annually laminated sediments in anoxic fjords are potentially ideal paleoclimate recorders, particularly once proxy measurements for atmospheric, oceanographic and sedimentological conditions have been calibrated. On the west coast of Canada, these sediments also record the changing environment as glaciers retreated from this area about 12 ka y BP. In Effingham Inlet, a 40 m core taken from the French ship the Marion Dufresne as part of the international IMAGES/PAGES program, gives evidence of an isolation basin at maximum glacial isostatic rebound and lowest paleo-sea level followed by eustatic sea level rise about 10 ka y BP. The Late Pleistocene record also marks dramatic changes in glacial sedimentary source and transport. Excellent chronological control is provided by complementary yet independent dating methods including radiocarbon dates on both plants and shells, identification of the Mazama Ash, varve counting and paleomagnetic, paleosecular variation correlations in the lower, pro-glacial section of the core which does not contain organic material. Paleoenvironmental evidence from this core provides information on immediate post-glacial conditions along the coast and rapid climatic changes throughout the Holocene, with implications for the possibility of early human migration routes and refugia.

Your Child's Immunization Record

MedlinePlus

Your Child’s Immunization Record It’s important to keep up-to-date records of all your child’s immunizations, beginning at birth and continuing through ... receives a vaccination by filling in the date. Record of Immunizations Date Given: Where Given: Reaction: Hepatitis ...

21 CFR 106.100 - Records.

Code of Federal Regulations, 2011 CFR

2011-04-01

... CONSUMPTION INFANT FORMULA QUALITY CONTROL PROCEDURES Records and Reports § 106.100 Records. (a) Every..., including tests conducted when nutrients exceed their expiration date or shelf life (retest date). (2) All... when nutrient premixes exceed their expiration date or shelf life (retest date). (e) The manufacturer...

Comparing dust flux records from the Subarctic North Pacific and Greenland: Implications for atmospheric transport to Greenland and for the application of dust as a chronostratigraphic tool

NASA Astrophysics Data System (ADS)

Serno, Sascha; Winckler, Gisela; Anderson, Robert F.; Maier, Edith; Ren, Haojia; Gersonde, Rainer; Haug, Gerald H.

2015-06-01

We present a new record of eolian dust flux to the western Subarctic North Pacific (SNP) covering the past 27,000 years based on a core from the Detroit Seamount. Comparing the SNP dust record to the North Greenland Ice Core Project (NGRIP) ice core record shows significant differences in the amplitude of dust changes to the two regions during the last deglaciation, while the timing of abrupt changes is synchronous. If dust deposition in the SNP faithfully records its mobilization in East Asian source regions, then the difference in the relative amplitude must reflect climate-related changes in atmospheric dust transport to Greenland. Based on the synchronicity in the timing of dust changes in the SNP and Greenland, we tie abrupt deglacial transitions in the 230Th-normalized 4He flux record to corresponding transitions in the well-dated NGRIP dust flux record to provide a new chronostratigraphic technique for marine sediments from the SNP. Results from this technique are complemented by radiocarbon dating, which allows us to independently constrain radiocarbon paleoreservoir ages. We find paleoreservoir ages of 745 ± 140 years at 11,653 year B.P., 680 ± 228 years at 14,630 year B.P., and 790 ± 498 years at 23,290 year B.P. Our reconstructed paleoreservoir ages are consistent with modern surface water reservoir ages in the western SNP. Good temporal synchronicity between eolian dust records from the Subantarctic Atlantic and equatorial Pacific and the ice core record from Antarctica supports the reliability of the proposed dust tuning method to be used more widely in other global ocean regions.

The last Deglaciation in the Mediterranean region: a multi-archives synthesis

NASA Astrophysics Data System (ADS)

Bazin, Lucie; Siani, Giuseppe; Landais, Amaelle; Bassinot, Frank; Genty, Dominique; Govin, Aline; Michel, Elisabeth; Nomade, Sebastien; Waelbroeck, Claire

2016-04-01

Multiple proxies record past climatic changes in different climate archives. These proxies are influenced by different component of the climate system and bring complementary information on past climate variability. The major limitation when combining proxies from different archives comes from the coherency of their chronologies. Indeed, each climate archives possess their own dating methods, not necessarily coherent with each other's. Consequently, when we want to assess the latitudinal changes and mechanisms behind a climate event, we often have to rely on assumptions of synchronisation between the different archives, such as synchronous temperature changes during warming events (Austin and Hibbert 2010). Recently, a dating method originally developed to produce coherent chronologies for ice cores (Datice,Lemieux-Dudon et al., 2010) has been adapted in order to integrate different climate archives (ice cores, sediment cores and speleothems (Lemieux-Dudon et al., 2015, Bazin et al., in prep)). In this presentation we present the validation of this multi-archives dating tool with a first application covering the last Deglaciation in the Mediterranean region. For this experiment, we consider the records from Monticchio, the MD90-917, Tenaghi Philippon and Lake Orhid sediment cores as well as continuous speleothems from Sofular, Soreq and La Mine caves. Using the Datice dating tool, and with the identification of common tephra layers between the cores considered, we are able to produce a multi-archives coherent chronology for this region, independently of any climatic assumption. Using this common chronological framework, we show that the usual climatic synchronisation assumptions are not valid over this region for the last glacial-interglacial transition. Finally, we compare our coherent Mediterranean chronology with Greenland ice core records in order to discuss the sequence of events of the last Deglaciation between these two regions.

Comparison of self-reported HIV testing data with medical records data in Houston, TX 2012-2013.

PubMed

An, Qian; Chronister, Karen; Song, Ruiguang; Pearson, Megan; Pan, Yi; Yang, Biru; Khuwaja, Salma; Hernandez, Angela; Hall, H Irene

2016-03-23

To assess the agreement between self-reported and medical record data on HIV status and dates of first positive and last negative HIV tests. Participants were recruited from patients attending Houston health clinics during 2012-2013. Self-reported data were collected using a questionnaire and compared with medical record data. Agreement of HIV status was assessed using kappa statistics and of HIV test dates using concordance correlation coefficient. The extent of difference between self-reported and medical record test dates was determined. Agreement between self-reported and medical record data was good on HIV status and date of first positive HIV test, but poor on date of last negative HIV test. About half of participants that self-reported never tested had HIV test results in medical records. Agreement varied by sex, race and/or ethnicity, and medical care facility. For HIV-positive persons, more self-reported first positive HIV test dates preceded medical record dates, with a median difference of 6 months. For HIV-negative persons, more medical record dates of last negative HIV test preceded self-reported dates, with a median difference of 2 months. Studies relying on self-reported HIV status other than HIV positive and self-reported date of last negative should consider including information from additional sources to validate the self-reported data. Published by Elsevier Inc.

19 CFR 133.34 - Effective date, term, and cancellation of recordation.

Code of Federal Regulations, 2011 CFR

2011-04-01

... recordation. 133.34 Section 133.34 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND... § 133.34 Effective date, term, and cancellation of recordation. (a) Effective date. Recordation of... renewed as provided in § 133.37. (c) Cancellation. Recordation of a copyright with the United States...

OSL Dating and GPR Mapping of Palaeotsunami Inundation: A 4000-Year History of Indian Ocean Tsunamis as recorded in Sri Lanka

NASA Astrophysics Data System (ADS)

Premasiri, Ranjith; Styles, Peter; Shrira, Victor; Cassidy, Nigel; Schwenninger, Jean-Luc

2015-12-01

To evaluate and mitigate tsunami hazard, as long as possible records of inundations and dates of past events are needed. Coastal sediments deposited by tsunamis (tsunamites) can potentially provide this information. However, of the three key elements needed for reconstruction of palaeotsunamis (identification of sediments, dating and finding the inundation distance) the latter remains the most difficult. The existing methods for estimating the extent of a palaeotsunami inundation rely on extensive excavation, which is not always possible. Here, by analysing tsunamites from Sri Lanka identified using sedimentological and paleontological characteristics, we show that their internal dielectric properties differ significantly from surrounding sediments. The significant difference in the value of dielectric constant of the otherwise almost indistinguishable sediments is due to higher water content of tsunamites. The contrasts were found to be sharp and not to erode over thousands of years; they cause sizeable electromagnetic wave reflections from tsunamite sediments, which permit the use of ground-penetrating radar (GPR) to trace their extent and morphology. In this study of the 2004 Boxing Day Indian Ocean tsunami, we use GPR in two locations in Sri Lanka to trace four identified major palaeotsunami deposits for at least 400 m inland (investigation inland was constrained by inaccessible security zones). The subsurface extent of tsunamites (not available without extensive excavation) provides a good proxy for inundation. The deposits were dated using the established method of optically stimulated luminescence (OSL). This dating, partly corroborated by available historical records and independent studies, contributes to the global picture of tsunami hazard in the Indian Ocean. The proposed method of combined GPR/OSL-based reconstruction of palaeotsunami deposits enables estimates of inundation, recurrence and, therefore, tsunami hazard for any sandy coast with identifiable tsunamite deposits. The method could be also used for anchoring and synchronizing chronologies of ancient civilisations adjacent to the ocean shores.

Investment subsidies and the adoption of electronic medical records in hospitals.

PubMed

Dranove, David; Garthwaite, Craig; Li, Bingyang; Ody, Christopher

2015-12-01

In February 2009 the U.S. Congress unexpectedly passed the Health Information Technology for Economic and Clinical Health Act (HITECH). HITECH provides up to $27 billion to promote adoption and appropriate use of Electronic Medical Records (EMR) by hospitals. We measure the extent to which HITECH incentive payments spurred EMR adoption by independent hospitals. Adoption rates for all independent hospitals grew from 48 percent in 2008 to 77 percent by 2011. Absent HITECH incentives, we estimate that the adoption rate would have instead been 67 percent in 2011. When we consider that HITECH funds were available for all hospitals and not just marginal adopters, we estimate that the cost of generating an additional adoption was $48 million. We also estimate that in the absence of HITECH incentives, the 77 percent adoption rate would have been realized by 2013, just 2 years after the date achieved due to HITECH. Copyright © 2015 Elsevier B.V. All rights reserved.

Using two on-going HIV studies to obtain clinical data from before, during and after pregnancy for HIV-positive women.

PubMed

Huntington, Susie E; Bansi, Loveleen K; Thorne, Claire; Anderson, Jane; Newell, Marie-Louise; Taylor, Graham P; Pillay, Deenan; Hill, Teresa; Tookey, Pat A; Sabin, Caroline A

2012-07-28

The UK Collaborative HIV Cohort (UK CHIC) is an observational study that collates data on HIV-positive adults accessing HIV clinical care at (currently) 13 large clinics in the UK but does not collect pregnancy specific data. The National Study of HIV in Pregnancy and Childhood (NSHPC) collates data on HIV-positive women receiving antenatal care from every maternity unit in the UK and Ireland. Both studies collate pseudonymised data and neither dataset contains unique patient identifiers. A methodology was developed to find and match records for women reported to both studies thereby obtaining clinical and treatment data on pregnant HIV-positive women not available from either dataset alone. Women in UK CHIC receiving HIV-clinical care in 1996-2009, were found in the NSHPC dataset by initially 'linking' records with identical date-of-birth, linked records were then accepted as a genuine 'match', if they had further matching fields including CD4 test date. In total, 2063 women were found in both datasets, representing 23.1% of HIV-positive women with a pregnancy in the UK (n = 8932). Clinical data was available in UK CHIC following most pregnancies (92.0%, 2471/2685 pregnancies starting before 2009). There was bias towards matching women with repeat pregnancies (35.9% (741/2063) of women found in both datasets had a repeat pregnancy compared to 21.9% (1502/6869) of women in NSHPC only) and matching women HIV diagnosed before their first reported pregnancy (54.8% (1131/2063) compared to 47.7% (3278/6869), respectively). Through the use of demographic data and clinical dates, records from two independent studies were successfully matched, providing data not available from either study alone.

75 FR 17041 - Extension of the Compliance Date for Cockpit Voice Recorder and Digital Flight Data Recorder...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-05

...] RIN 2120-AJ65 Extension of the Compliance Date for Cockpit Voice Recorder and Digital Flight Data... March 7, 2008, the FAA published a final rule titled ``Revisions to Cockpit Voice Recorder and Digital... digital flight data recorder equipment on certain aircraft beginning April 7, 2010. That compliance date...

GP-delivered secondary prevention cardiovascular disease programme; early predictors of likelihood of patient non-adherence.

PubMed

Fitzpatrick, Patricia; Lonergan, Moira; Collins, Claire; Daly, Leslie

2010-12-01

The aim of this study was to determine how routinely recorded data could predict early the likelihood of patient non-adherence to a primary care-delivered secondary prevention programme for established coronary heart disease (CHD), with patients with CHD (10,851) invited to attend four times per year. Non-adherence was defined as attending no more than three GP visits ever. The study sample was selected to allow a possible two-year recorded follow-up period in which patients could take up invitations. Administrative recordings of visit dates and intervals between visits, baseline results of key parameters and early changes were examined using logistic regression to determine independent predictors of non-adherence. Longer interval between early visits, no family history of CHD, smoking and being outside target for exercise at baseline were independently associated with non-adherence. Early identification by GPs of those who fail to attend on time or who defer appointments, in addition to persistence of lifestyle factors unchanged by a prior serious cardiac event should serve as a warning sign that targeted interventions to maintain adherence in primary care-delivered secondary prevention programmes are necessary.

Time‐dependent renewal‐model probabilities when date of last earthquake is unknown

USGS Publications Warehouse

Field, Edward H.; Jordan, Thomas H.

2015-01-01

We derive time-dependent, renewal-model earthquake probabilities for the case in which the date of the last event is completely unknown, and compare these with the time-independent Poisson probabilities that are customarily used as an approximation in this situation. For typical parameter values, the renewal-model probabilities exceed Poisson results by more than 10% when the forecast duration exceeds ~20% of the mean recurrence interval. We also derive probabilities for the case in which the last event is further constrained to have occurred before historical record keeping began (the historic open interval), which can only serve to increase earthquake probabilities for typically applied renewal models.We conclude that accounting for the historic open interval can improve long-term earthquake rupture forecasts for California and elsewhere.

17 CFR 1.10 - Financial reports of futures commission merchants and introducing brokers.

Code of Federal Regulations, 2014 CFR

2014-04-01

... certified by an independent public accountant in accordance with § 1.16 as of a date not more than 45 days... independent public accountant in accordance with § 1.16 as of a date not more than one year prior to the date... public accountant in accordance with § 1.16 as of a date not more than 45 days prior to the date on which...

78 FR 20625 - Extension of Hearing Record Closure Date

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-05

... DEFENSE NUCLEAR FACILITIES SAFETY BOARD Extension of Hearing Record Closure Date AGENCY: Defense Nuclear Facilities Safety Board. ACTION: Extension of hearing record closure date. SUMMARY: The Defense Nuclear Facilities Safety Board (Board) published a document in the Federal Register on January 22, 2013...

77 FR 65871 - Extension of Hearing Record Closure Date

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-31

... DEFENSE NUCLEAR FACILITIES SAFETY BOARD Extension of Hearing Record Closure Date AGENCY: Defense Nuclear Facilities Safety Board. ACTION: Extension of hearing record closure date. SUMMARY: The Defense Nuclear Facilities Safety Board (Board) published a document in the Federal Register on August 15, 2012...

78 FR 1206 - Second Extension of Hearing Record Closure Date

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-08

... DEFENSE NUCLEAR FACILITIES SAFETY BOARD Second Extension of Hearing Record Closure Date AGENCY: Defense Nuclear Facilities Safety Board. ACTION: Second extension of hearing record closure date. SUMMARY: The Defense Nuclear Facilities Safety Board (Board) published a document in the Federal Register on...

41 CFR 301-11.10 - Am I required to record departure/arrival dates and times on my travel claim?

Code of Federal Regulations, 2010 CFR

2010-07-01

... departure/arrival dates and times on my travel claim? 301-11.10 Section 301-11.10 Public Contracts and... dates and times on my travel claim? You must record the date of departure from, and arrival at, the... visited. You do not have to record departure/arrival times, but you must annotate your travel claim when...

41 CFR 301-11.10 - Am I required to record departure/arrival dates and times on my travel claim?

Code of Federal Regulations, 2013 CFR

2013-07-01

... departure/arrival dates and times on my travel claim? 301-11.10 Section 301-11.10 Public Contracts and... dates and times on my travel claim? You must record the date of departure from, and arrival at, the... visited. You do not have to record departure/arrival times, but you must annotate your travel claim when...

41 CFR 301-11.10 - Am I required to record departure/arrival dates and times on my travel claim?

Code of Federal Regulations, 2012 CFR

2012-07-01

... departure/arrival dates and times on my travel claim? 301-11.10 Section 301-11.10 Public Contracts and... dates and times on my travel claim? You must record the date of departure from, and arrival at, the... visited. You do not have to record departure/arrival times, but you must annotate your travel claim when...

41 CFR 301-11.10 - Am I required to record departure/arrival dates and times on my travel claim?

Code of Federal Regulations, 2011 CFR

2011-07-01

... departure/arrival dates and times on my travel claim? 301-11.10 Section 301-11.10 Public Contracts and... dates and times on my travel claim? You must record the date of departure from, and arrival at, the... visited. You do not have to record departure/arrival times, but you must annotate your travel claim when...

41 CFR 301-11.10 - Am I required to record departure/arrival dates and times on my travel claim?

Code of Federal Regulations, 2014 CFR

2014-07-01

... departure/arrival dates and times on my travel claim? 301-11.10 Section 301-11.10 Public Contracts and... dates and times on my travel claim? You must record the date of departure from, and arrival at, the... visited. You do not have to record departure/arrival times, but you must annotate your travel claim when...

17 CFR 1.10 - Financial reports of futures commission merchants and introducing brokers.

Code of Federal Regulations, 2013 CFR

2013-04-01

... required to be certified by an independent public accountant in accordance with § 1.16, a paper copy of any... certified by an independent public accountant in accordance with § 1.16 as of a date not more than 45 days... independent public accountant in accordance with § 1.16 as of a date not more than one year prior to the date...

17 CFR 1.10 - Financial reports of futures commission merchants and introducing brokers.

Code of Federal Regulations, 2012 CFR

2012-04-01

... required to be certified by an independent public accountant in accordance with § 1.16, a paper copy of any... certified by an independent public accountant in accordance with § 1.16 as of a date not more than 45 days... independent public accountant in accordance with § 1.16 as of a date not more than one year prior to the date...

17 CFR 1.10 - Financial reports of futures commission merchants and introducing brokers.

Code of Federal Regulations, 2011 CFR

2011-04-01

... required to be certified by an independent public accountant in accordance with § 1.16, a paper copy of any... certified by an independent public accountant in accordance with § 1.16 as of a date not more than 45 days... independent public accountant in accordance with § 1.16 as of a date not more than one year prior to the date...

Estimating north pacific summer sea-level pressure back to 1600 using proxy climate records from China and North America

NASA Astrophysics Data System (ADS)

Wu, Xiangding; Lough, J. M.

1987-03-01

Sea-level pressure variations over the North Pacific Ocean influence the surface climate conditions of China and western North America. Documentary records of precipitation in China data back to the mid-15th century, and a well-replicated network of tree-ring chronologies from western North America dates to the early 17th century. These proxy climate records are used separately and together to estimate sea-level pressure variations over the North Pacific back to 1600 A.D. The models are calibrated over the period 1899 to 1950 and verified over the independent period, 1951 to 1963. The best estimates, derived from predictors in China and western North America, calibrate 44.7 % of summer sea-level pressure variance. The study demonstrates the potential of combining different proxy data sources to derive estimates of past climate.

Orbital time scale and new C-isotope record for Cenomanian-Turonian boundary stratotype

NASA Astrophysics Data System (ADS)

Sageman, Bradley B.; Meyers, Stephen R.; Arthur, Michael A.

2006-02-01

Previous time scales for the Cenomanian-Turonian boundary (CTB) interval containing Oceanic Anoxic Event II (OAE II) vary by a factor of three. In this paper we present a new orbital time scale for the CTB stratotype established independently of radiometric, biostratigraphic, or geochemical data sets, update revisions of CTB biostratigraphic zonation, and provide a new detailed carbon isotopic record for the CTB study interval. The orbital time scale allows an independent assessment of basal biozone ages relative to the new CTB date of 93.55 Ma (GTS04). The δ13Corg data document the abrupt onset of OAE II, significant variability in δ13Corg values, and values enriched to almost -22‰. These new data underscore the difficulty in defining OAE II termination. Using the new isotope curve and time scale, estimates of OAE II duration can be determined and exported to other sites based on integration of well-established chemostratigraphic and biostratigraphic datums. The new data will allow more accurate calculations of biogeochemical and paleobiologic rates across the CTB.

INTIMATE: Integration of Ice-core Marine and Terrestrial records

NASA Astrophysics Data System (ADS)

Turney, C. S. M.; Hoek, W. Z.; Intimate Group

2009-04-01

The principal aim of the INTIMATE Project is to synthesize high-resolution ice, terrestrial and marine records spanning the period 60,000 to 8000 years ago (henceforth given as 60-8 ka) to better understand the impact and mechanisms of rapid and extreme climate change, thereby reducing the uncertainty of future predictions. The specific objectives of the INTIMATE Project are to: • lead the development of highly-precise and accurate age-depth models in ice-core, marine, and terrestrial records (including identification and validation of time-stratigraphic marker horizons) over the period 60-8 ka; • promote the development of quantified climate reconstruction methods; • determine the timing, rates of change, spatial variability and climate gradients during key periods at the regional, hemispheric and global level (in collaboration with the INQUA-recognized Australasian INTIMATE Project and future regional INTIMATE projects); • determine the environmental impact of rapid and extreme climate changes in the North Atlantic region (focusing on megafauna and vegetation); and develop climate and environmental reconstructions of change that may be used in climate modeling to better determine the mechanisms of change and how signals are propagated globally. For correlation, precise dating of the records from the different realms is imperative. The development of an event-stratigraphy for the Last Glacial-Interglacial Transition (Björck et al., 1998) provided a template to compare other, independently dated, palaeoclimate records with the high-resolution Greenland oxygen isotope records. The event-stratigraphy has recently been refined and updated to the new NGRIP record using the GICC05 timescale (Lowe et al., 2008), which will be outlined in this paper. References: Björck, S., Walker, M.J.C., Cwynar, L.C., Johnsen, S., Knudsen, K.-L., Lowe, J.J., Wohlfarth, B. and INTIMATE members (1998) An event stratigraphy for the Last Termination in the North Atlantic region based on the Greenland ice-core record: a proposal by the INTIMATE group, Journal of Quaternary Science 13, 283-292. Lowe, J.J., Rasmussen, S.O., Björck, S., Hoek, W.Z., Steffensen, J.P., Walker, M.J.C., Yu, Z. and INTIMATE group (2008) Precise dating and correlation of events in the North Atlantic region during the Last Termination: a revised protocol recommended by the INTIMATE group. Quaternary Science Reviews, 27, 6-17.

Dating Antarctic ice sheet collapse: Proposing a molecular genetic approach

NASA Astrophysics Data System (ADS)

Strugnell, Jan M.; Pedro, Joel B.; Wilson, Nerida G.

2018-01-01

Sea levels at the end of this century are projected to be 0.26-0.98 m higher than today. The upper end of this range, and even higher estimates, cannot be ruled out because of major uncertainties in the dynamic response of polar ice sheets to a warming climate. Here, we propose an ecological genetics approach that can provide insight into the past stability and configuration of the West Antarctic Ice Sheet (WAIS). We propose independent testing of the hypothesis that a trans-Antarctic seaway occurred at the last interglacial. Examination of the genomic signatures of bottom-dwelling marine species using the latest methods can provide an independent window into the integrity of the WAIS more than 100,000 years ago. Periods of connectivity facilitated by trans-Antarctic seaways could be revealed by dating coalescent events recorded in DNA. These methods allow alternative scenarios to be tested against a fit to genomic data. Ideal candidate taxa for this work would need to possess a circumpolar distribution, a benthic habitat, and some level of genetic structure indicated by phylogeographical investigation. The purpose of this perspective piece is to set out an ecological genetics method to help resolve when the West Antarctic Ice Shelf last collapsed.

Late Pleistocene eruptive history of the Mono Craters rhyolites, eastern California, from U-Th dating of explosive and effusive products

NASA Astrophysics Data System (ADS)

Marcaida, M.; Vazquez, J. A.; Calvert, A. T.; Miller, J. S.

2016-12-01

During late Pleistocene-Holocene time, repeated explosive and effusive eruptions of high-silica rhyolite magma south of Mono Lake, California, have produced a chain of massive domes known as the Mono Craters and a time-series of tephra deposits preserved in sediments of the Wilson Creek formation of ancestral Mono Lake. The record of late Holocene volcanism at Mono Craters is relatively well constrained by tephrostratigraphy and 14C dating, and the timing of late Pleistocene eruptions is similarly well constrained by tephrochronology and magnetostratigraphy of the Wilson Creek formation. However, the chronology of eruptions for the Mono Craters chain, comprising at least 28 individual domes, has thus far been based on age estimates from hydration rind dating of obsidian that is highly dependent on local calibration. We constrain the timing of late Pleistocene dome emplacement by linking independently dated Wilson Creek tephras to their dome equivalents in the Mono Craters using combined titanomagnetite geochemistry and U-Th geochronology. Ion microprobe 238U-230Th dating of unpolished allanite and zircon rims gives isochron dates of ca. 42 ka, ca. 38 ka, ca. 26 ka, and ca. 20 ka for domes 19, 24, 31 (newly recognized), and 11 of the Mono Craters, respectively. These domes are biotite-bearing rhyolites with titanomagnetites that are compositionally identical to those from several Wilson Creek tephras. Specifically, we correlate Ash 15, Ash 7, and Ash 3 of the Wilson Creek formation to domes 19, 31, and 11 of the Mono Craters, respectively, based on matching titanomagnetite compositions and indistinguishable U-Th ages. 40Ar/39Ar dating of single sanidines from domes 19 and 31 yield mean dates that are 10 k.y. older than their corresponding U-Th dates, likely due to excess argon from melt inclusions and/or incompletely re-equilibrated antecrysts. Based on our new U-Th isochron date of ca. 34 ka for allanite-zircon from Ash 8 pumice and the ca. 26-27 ka age of Ash 7 and its extrusive equivalent dome 31, we infer that the stratigraphic position of the ca. 32 ka Auckland/Mono Lake geomagnetic excursion, if recorded in beds of the Wilson Creek formation, is between Ashes 7 and 8. Accordingly, the prominent geomagnetic excursion bisected by Ash 15 lower in the section is the ca. 41 ka global Laschamp event.

78 FR 9309 - Airworthiness Directives; MD Helicopters, Inc., Helicopters

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-08

... date, creating a component record card for each T-T strap, and revising the airworthiness limitations..., marking each T-T strap with the expiration date, creating a component record card for each T-T strap, and... date; creating a component record card for each affected T-T strap; replacing T-T straps that have been...

Defining the upper age limit of luminescence dating: A case study using long lacustrine records from Chew Bahir, Ethiopia

NASA Astrophysics Data System (ADS)

Chapot, Melissa S.; Roberts, Helen M.; Lamb, Henry F.; Schäbitz, Frank; Asrat, Asfawossen; Trauth, Martin H.

2017-04-01

Optically stimulated luminescence (OSL) dating is a family of numerical chronometric techniques applied to quartz or feldspar mineral grains to assess the time since these grains were last exposed to sunlight (i.e. deposited), based on the amount of energy they absorbed from ambient radiation during burial. The maximum limit of any OSL dating technique is not defined by a fixed upper age limit, but instead by the maximum radiation dose the sample can accurately record before the OSL signal saturates. The challenge is to assess this upper limit of accurate age determination without necessitating comparison to independent age control. Laboratory saturation of OSL signals can be observed using a dose response curve (DRC) plotting OSL signal intensity against absorbed laboratory radiation dose. When a DRC is fitted with a single saturating exponential, one of the equation's parameters can be used to define a pragmatic upper limit beyond which uncertainties become large and asymmetric (Wintle and Murray, 2006). However, many sub-samples demonstrate DRCs that are best defined by double saturating exponential equations, which cannot be used to define this upper limit. To investigate the reliability of luminescence ages approaching saturation, Chapot et al. (2012) developed the Natural DRC concept, which uses expected ages derived from independent age control, combined with sample-specific measurements of ambient radioactivity, to calculate expected doses of absorbed radiation during burial. Natural OSL signal intensity is then plotted against these expected doses and compared to laboratory-generated DRCs. Using this approach, discrepancies between natural and laboratory DRCs have been observed for the same mineral material as natural OSL signal intensities saturate at absorbed radiation doses lower than the pragmatic upper limit defined by laboratory DRCs, leading to increasing age underestimation with depth without a metric for questioning the age reliability. The present study explores a means of defining the upper limit for reliable luminescence ages for sedimentary records without an established chronologic framework, using a long ( 280m; Cohen et al., 2016) lacustrine record from Chew Bahir, Ethiopia, drilled as part of the Hominin Sites and Paleolakes Drilling Project (HSPDP) of the International Continental Scientific Drilling Programme (ICDP) and CRC806 "Our way to Europe". Natural saturation of OSL signals is explored by plotting natural signal intensity against depth, creating a pseudo-Natural DRC that can be compared to laboratory DRCs. Unlike the homogenous deposits of the Chinese Loess Plateau where the Natural DRC concept was developed, the 280m composite core from Chew Bahir shows significant variation in lithology enabling investigation of the effects of sample to sample variability on Natural DRC construction, and facilitating comparison between signals from fine-quartz, fine-polymineral, and coarse-potassium feldspar grains. This work demonstrates how the concepts of Natural DRCs can be used to define the upper dating limit of sample suites without independent age control, providing valuable information for long sedimentary sequences such as the lacustrine deposits from Chew Bahir. Chapot M.S., et al. (2012), Radiation Measurements 47: 1045-1052. Cohen A, et al. (2016), Scientific Drilling 21: 1-16. Wintle, A.G., Murray, A.S. (2006) Radiation Measurements 41: 369-391.

New chronology of the best developed loess/paleosol sequence of Hungary capturing the past 1.1 ma: Implications for correlation and proposed pan-Eurasian stratigraphic schemes

NASA Astrophysics Data System (ADS)

Sümegi, P.; Gulyás, S.; Molnár, D.; Sümegi, B. P.; Almond, P. C.; Vandenberghe, J.; Zhou, L.; Pál-Molnár, E.; Törőcsik, T.; Hao, Q.; Smalley, I.; Molnár, M.; Marsi, I.

2018-07-01

In this paper, we are presenting a revised chronology of the best developed, longest (100 m) LPS in Hungary dating back 1.1 Ma: borehole Udvari-2A. It is based on a non-tuned age-depth model, built on the position of the Matuyama-Brunhes Boundary, Jaramillo and Olduvai Subchrons. Furthermore, on the assignment of formerly recorded uninterpreted geomagnetic reversals in both chrons. Other chronometric tools (AMS 14C dating, biostratigraphy, tephrostratigraphy) yielding absolute ages and/or ensuring validation of these were also used. Records of a Middle Pleistocene gastropod index fossil Neostyriaca corynodes (400 -140 ka) facilitated verification of ages between MIS 10 and MIS 6. Multiple age control points at 15, 25, 27, 45, 120, 191, 362, 430, 670, 780, 900, 990, 1070 ka were established for the last ca. 1.1 Ma. The resulting chronology is the best resolved independent one so far among Danubian Basin LPSs. In light of our data, the S3-S4 units were fused as S3 in all Serbian, and some Romanian sites and re-correlated with MIS 9. The results also point to a misassignment of the S5 units at these sites to MIS 13-15 leading to erroneous conclusions regarding paleoclimatic conditions and cyclicity. In our new stratigraphic scheme, these S5 paleosols were taken to represent the S4 paleosol and recorrelated with MIS 11. Finally, an ideal stratigraphic column dating back 1.1 Ma for SW Hungary was constructed and correlated with the Chinese loess/paleosol sequence of Xifeng and the benthic oxygen isotope record down to MIS 31.

19 CFR 103.5 - Specific requests for records.

Code of Federal Regulations, 2010 CFR

2010-04-01

... requirement for a reasonably description is not a device for improperly withholding records from the public... materal. The latest of those dates is the date of receipt of the request. As soon as the date of receipt...

Uncertain sightings and the extinction of the Ivory-billed Woodpecker.

PubMed

Solow, Andrew; Smith, Woollcott; Burgman, Mark; Rout, Tracy; Wintle, Brendan; Roberts, David

2012-02-01

The extinction of a species can be inferred from a record of its sightings. Existing methods for doing so assume that all sightings in the record are valid. Often, however, there are sightings of uncertain validity. To date, uncertain sightings have been treated in an ad hoc way, either excluding them from the record or including them as if they were certain. We developed a Bayesian method that formally accounts for such uncertain sightings. The method assumes that valid and invalid sightings follow independent Poisson processes and use noninformative prior distributions for the rate of valid sightings and for a measure of the quality of uncertain sightings. We applied the method to a recently published record of sightings of the Ivory-billed Woodpecker (Campephilus principalis). This record covers the period 1897-2010 and contains 39 sightings classified as certain and 29 classified as uncertain. The Bayes factor in favor of extinction was 4.03, which constitutes substantial support for extinction. The posterior distribution of the time of extinction has 3 main modes in 1944, 1952, and 1988. The method can be applied to sighting records of other purportedly extinct species. ©2011 Society for Conservation Biology.

An optimized multi-proxy, multi-site Antarctic ice and gas orbital chronology (AICC2012): 120-800 ka

NASA Astrophysics Data System (ADS)

Bazin, L.; Landais, A.; Lemieux-Dudon, B.; Toyé Mahamadou Kele, H.; Veres, D.; Parrenin, F.; Martinerie, P.; Ritz, C.; Capron, E.; Lipenkov, V.; Loutre, M.-F.; Raynaud, D.; Vinther, B.; Svensson, A.; Rasmussen, S. O.; Severi, M.; Blunier, T.; Leuenberger, M.; Fischer, H.; Masson-Delmotte, V.; Chappellaz, J.; Wolff, E.

2013-08-01

An accurate and coherent chronological framework is essential for the interpretation of climatic and environmental records obtained from deep polar ice cores. Until now, one common ice core age scale had been developed based on an inverse dating method (Datice), combining glaciological modelling with absolute and stratigraphic markers between 4 ice cores covering the last 50 ka (thousands of years before present) (Lemieux-Dudon et al., 2010). In this paper, together with the companion paper of Veres et al. (2013), we present an extension of this work back to 800 ka for the NGRIP, TALDICE, EDML, Vostok and EDC ice cores using an improved version of the Datice tool. The AICC2012 (Antarctic Ice Core Chronology 2012) chronology includes numerous new gas and ice stratigraphic links as well as improved evaluation of background and associated variance scenarios. This paper concentrates on the long timescales between 120-800 ka. In this framework, new measurements of δ18Oatm over Marine Isotope Stage (MIS) 11-12 on EDC and a complete δ18Oatm record of the TALDICE ice cores permit us to derive additional orbital gas age constraints. The coherency of the different orbitally deduced ages (from δ18Oatm, δO2/N2 and air content) has been verified before implementation in AICC2012. The new chronology is now independent of other archives and shows only small differences, most of the time within the original uncertainty range calculated by Datice, when compared with the previous ice core reference age scale EDC3, the Dome F chronology, or using a comparison between speleothems and methane. For instance, the largest deviation between AICC2012 and EDC3 (5.4 ka) is obtained around MIS 12. Despite significant modifications of the chronological constraints around MIS 5, now independent of speleothem records in AICC2012, the date of Termination II is very close to the EDC3 one.

78 FR 57149 - Midcontinent Independent System Operator, Inc.; Notice of Initiation of Proceeding and Refund...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-17

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EL13-83-000] Midcontinent Independent System Operator, Inc.; Notice of Initiation of Proceeding and Refund Effective Date On September 9... date in Docket No. EL13-83-000, established pursuant to section 206(b) of the FPA, will be the date of...

A 50,000 year insect record from Rancho La Brea, Southern California: Insights into past climate and fossil deposition

NASA Astrophysics Data System (ADS)

Holden, Anna R.; Southon, John R.; Will, Kipling; Kirby, Matthew E.; Aalbu, Rolf L.; Markey, Molly J.

2017-07-01

Rigorously studied and dated Late Quaternary paleoenvironmental reconstructions from Ranch La Brea (RLB) and the Los Angeles Basin are scarce. Here, we use data from AMS radiocarbon dated insect fragments to infer local climates over the past 50,000 years. Our results indicate: 1) Quaternary insect remains can be located with great accuracy in radiocarbon time, and 2) well-dated and documented climate indicator beetle species are sensitive proxies for environmental change in the Los Angeles Basin. A total of 182 extant RLB ground and darkling beetle species (Coleoptera: Carabidae, Tenebrionidae) were radiocarbon dated. The resulting radiocarbon dates form a semi-continuous range from ∼50 to 28, 16-7.5, and 4 kcal yrs BP to the present. Associated insect climate ranges indicate past conditions consistent with, or very similar to, the current Los Angeles Basin Mediterranean climate. Importantly, these insect data suggest higher temperatures and aridity than inferred previously from other RLB proxies. Furthermore, wider-than-assumed dating spreads for some deposits emphasize the lack of biostratigraphy for RLB, and challenge inferences based on limited sets of radiocarbon dates and assumptions about stratigraphic integrity. Our results demonstrate the necessity to independently radiocarbon date each taxon. The insect paleoclimate interpretations were compared to regional pollen data, primarily from various southern Californian sites including Lake Elsinore and Santa Barbara Basin. These comparisons reveal an important difference in climate interpretations for the last Glacial: the RLB insect data suggest climate similar to the current one, while the regional pollen data have been interpreted as indicating a climate wetter than present.

[Qualitative evaluation of blood products records in a hospital].

PubMed

Lartigue, B; Catillon, E

2012-02-01

This study aimed at evaluating the qualitative performance of blood products traceability from paper and electronic medical records in a hospital. Quality of date/time documentation was assessed by detection, for 20minutes or more, of chronological errors and inter-source inconsistencies, in a random sample of 168 blood products transfused during 2009. A receipt date/time was confirmed in 52% of paper records; a data entry error was attested in 25% of paper records, and 21% of electronic records. A transfusion date/time was notified in 93% of paper records, with a data entry error in 26% of paper records and 25% of electronic records. The patient medical record held at least one date/time error in 18% and 17%, for receipt and transfusion respectively. Environmental factors (clinical setting, urgency, blood product category) did not contributed to data error rates. Although blood products traceability has good quantitative results, the recorded documentation is not qualitative. In our study, data entry errors are similar in electronic or paper records, but the global failure rate is lesser in electronic records because omissions are controlled. Copyright © 2011 Elsevier Masson SAS. All rights reserved.

76 FR 81524 - Public Land Order No. 7786; Revocation of Secretarial Order Dated October 8, 1907; Montana

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-28

... laws, subject to other segregations of record. DATES: Effective Date: December 28, 2011. FOR FURTHER... existing rights, the provisions of existing withdrawals, other segregations of record, and the requirements...

Oligocene Termite Nests with In Situ Fungus Gardens from the Rukwa Rift Basin, Tanzania, Support a Paleogene African Origin for Insect Agriculture

PubMed Central

Roberts, Eric M.; Todd, Christopher N.; Aanen, Duur K.; Nobre, Tânia; Hilbert-Wolf, Hannah L.; O’Connor, Patrick M.; Tapanila, Leif; Mtelela, Cassy; Stevens, Nancy J.

2016-01-01

Based on molecular dating, the origin of insect agriculture is hypothesized to have taken place independently in three clades of fungus-farming insects: the termites, ants or ambrosia beetles during the Paleogene (66–24 Ma). Yet, definitive fossil evidence of fungus-growing behavior has been elusive, with no unequivocal records prior to the late Miocene (7–10 Ma). Here we report fossil evidence of insect agriculture in the form of fossil fungus gardens, preserved within 25 Ma termite nests from southwestern Tanzania. Using these well-dated fossil fungus gardens, we have recalibrated molecular divergence estimates for the origins of termite agriculture to around 31 Ma, lending support to hypotheses suggesting an African Paleogene origin for termite-fungus symbiosis; perhaps coinciding with rift initiation and changes in the African landscape. PMID:27333288

Climate and sex ratio variation in a viviparous lizard.

PubMed

Cunningham, George D; While, Geoffrey M; Wapstra, Erik

2017-05-01

The extent to which key biological processes, such as sex determination, respond to environmental fluctuations is fundamental for assessing species' susceptibility to ongoing climate change. Few studies, however, address how climate affects offspring sex in the wild. We monitored two climatically distinct populations of the viviparous skink Niveoscincus ocellatus for 16 years, recording environmental temperatures, offspring sex and date of birth. We found strong population-specific effects of temperature on offspring sex, with female offspring more common in warm years at the lowland site but no effect at the highland site. In contrast, date of birth advanced similarly in response to temperature at both sites. These results suggest strong population-specific effects of temperature on offspring sex that are independent of climatic effects on other physiological processes. These results have significant implications for our understanding of the ecological and evolutionary consequences of variation in sex ratios under climate change. © 2017 The Author(s).

Astronomical calibration of the geological timescale: closing the middle Eocene gap

NASA Astrophysics Data System (ADS)

Westerhold, T.; Röhl, U.; Frederichs, T.; Bohaty, S. M.; Zachos, J. C.

2015-09-01

To explore cause and consequences of past climate change, very accurate age models such as those provided by the astronomical timescale (ATS) are needed. Beyond 40 million years the accuracy of the ATS critically depends on the correctness of orbital models and radioisotopic dating techniques. Discrepancies in the age dating of sedimentary successions and the lack of suitable records spanning the middle Eocene have prevented development of a continuous astronomically calibrated geological timescale for the entire Cenozoic Era. We now solve this problem by constructing an independent astrochronological stratigraphy based on Earth's stable 405 kyr eccentricity cycle between 41 and 48 million years ago (Ma) with new data from deep-sea sedimentary sequences in the South Atlantic Ocean. This new link completes the Paleogene astronomical timescale and confirms the intercalibration of radioisotopic and astronomical dating methods back through the Paleocene-Eocene Thermal Maximum (PETM, 55.930 Ma) and the Cretaceous-Paleogene boundary (66.022 Ma). Coupling of the Paleogene 405 kyr cyclostratigraphic frameworks across the middle Eocene further paves the way for extending the ATS into the Mesozoic.

32 CFR Appendix E to Part 310 - Sample of New or Altered System of Records Notice in Federal Register Format

Code of Federal Regulations, 2010 CFR

2010-07-01

.... DATES: The changes will be effective on (insert date thirty days after publication in the Federal... the system: Storage: Records are maintained on electronic storage media and paper. Retrievability... changes to the system notice. DATES: This action will be effective without further notice on (insert date...

Temperature variations in the southern Great Lakes during the last deglaciation: Comparison between pollen and GDGT proxies

NASA Astrophysics Data System (ADS)

Watson, Benjamin I.; Williams, John W.; Russell, James M.; Jackson, Stephen T.; Shane, Linda; Lowell, Thomas V.

2018-02-01

Our understanding of deglacial climate history in the southern Great Lakes region of the United States is primarily based upon fossil pollen data, with few independent and multi-proxy climate reconstructions. Here we introduce a new, well-dated fossil pollen record from Stotzel-Leis, OH, and a new deglacial temperature record based on branched glycerol dialkyl glycerol tetraethers (brGDGTs) at Silver Lake, OH. We compare these new data to previously published records and to a regional stack of pollen-based temperature reconstructions from Stotzel-Leis, Silver Lake, and three other well-dated sites. The new and previously published pollen records at Stotzel-Leis are similar, but our new age model brings vegetation events into closer alignment with known climatic events such as the Younger Dryas (YD). brGDGT-inferred temperatures correlate strongly with pollen-based regional temperature reconstructions, with the strongest correlation obtained for a global soil-based brGDGT calibration (r2 = 0.88), lending confidence to the deglacial reconstructions and the use of brGDGT and regional pollen stacks as paleotemperature proxies in eastern North America. However, individual pollen records show large differences in timing, rates, and amplitudes of inferred temperature change, indicating caution with paleoclimatic inferences based on single-site pollen records. From 16.0 to 10.0ka, both proxies indicate that regional temperatures rose by ∼10 °C, roughly double the ∼5 °C estimates for the Northern Hemisphere reported in prior syntheses. Change-point analysis of the pollen stack shows accelerated warming at 14.0 ± 1.2ka, cooling at 12.6 ± 0.4ka, and warming from 11.6 ± 0.5ka into the Holocene. The timing of Bølling-Allerød (B-A) warming and YD onset in our records lag by ∼300-500 years those reported in syntheses of temperature records from the northern mid-latitudes. This discrepancy is too large to be attributed to uncertainties in radiocarbon dating, and correlation between pollen and brGDGT temperature reconstructions rules out vegetation lags as a cause. However, the YD termination appears synchronous among the brGDGT record, regional pollen stack, and Northern Hemisphere stack. The cause of the larger and lagged temperature changes in the southern Great Lakes relative to Northern Hemisphere averages remains unclear, but may be due to the effects of continentality and ice sheet extent on regional climate evolution.

Temperature variations in the southern Great Lakes during the last deglaciation: Comparison between pollen and GDGT proxies

USGS Publications Warehouse

Watson, Benjamin I.; Williams, John W.; Russell, James M.; Jackson, Stephen T.; Shane, Linda; Lowell, Thomas V.

2018-01-01

Our understanding of deglacial climate history in the southern Great Lakes region of the United States is primarily based upon fossil pollen data, with few independent and multi-proxy climate reconstructions. Here we introduce a new, well-dated fossil pollen record from Stotzel-Leis, OH, and a new deglacial temperature record based on branched glycerol dialkyl glycerol tetraethers (brGDGTs) at Silver Lake, OH. We compare these new data to previously published records and to a regional stack of pollen-based temperature reconstructions from Stotzel-Leis, Silver Lake, and three other well-dated sites. The new and previously published pollen records at Stotzel-Leis are similar, but our new age model brings vegetation events into closer alignment with known climatic events such as the Younger Dryas (YD). brGDGT-inferred temperatures correlate strongly with pollen-based regional temperature reconstructions, with the strongest correlation obtained for a global soil-based brGDGT calibration (r2 = 0.88), lending confidence to the deglacial reconstructions and the use of brGDGT and regional pollen stacks as paleotemperature proxies in eastern North America. However, individual pollen records show large differences in timing, rates, and amplitudes of inferred temperature change, indicating caution with paleoclimatic inferences based on single-site pollen records. From 16.0 to 10.0ka, both proxies indicate that regional temperatures rose by ∼10 °C, roughly double the ∼5 °C estimates for the Northern Hemisphere reported in prior syntheses. Change-point analysis of the pollen stack shows accelerated warming at 14.0 ± 1.2ka, cooling at 12.6 ± 0.4ka, and warming from 11.6 ± 0.5ka into the Holocene. The timing of Bølling-Allerød (B-A) warming and YD onset in our records lag by ∼300–500 years those reported in syntheses of temperature records from the northern mid-latitudes. This discrepancy is too large to be attributed to uncertainties in radiocarbon dating, and correlation between pollen and brGDGT temperature reconstructions rules out vegetation lags as a cause. However, the YD termination appears synchronous among the brGDGT record, regional pollen stack, and Northern Hemisphere stack. The cause of the larger and lagged temperature changes in the southern Great Lakes relative to Northern Hemisphere averages remains unclear, but may be due to the effects of continentality and ice sheet extent on regional climate evolution.

40 CFR 63.11442 - What are the recordkeeping requirements?

Code of Federal Regulations, 2010 CFR

2010-07-01

...), you must keep each record for 5 years following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (d) You must keep each record onsite for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or record, according to...

5 CFR 1630.11 - Requirements for requests to amend records.

Code of Federal Regulations, 2010 CFR

2010-01-01

... or personal records (e.g., age, address, Social Security number, date of birth). Write to your..., investment allocation, interfund transfers, loans, loan repayments, and withdrawals Write to TSP record... personal and payroll records on the participant, such as his or her date of birth, Social Security number...

Air content and O2/N2 tuned chronologies on local insolation signatures in the Vostok ice core are similar

NASA Astrophysics Data System (ADS)

Lipenkov, V.; Raynaud, D.; Loutre, M.-F.; Duval, P.; Lemieux-Dudon, B.

2009-04-01

An accurate chronology of ice cores is needed for interpreting the paleoclimatic record and understanding the relation between insolation and climate. A new domain of research in this area has been initially stimulated by the work of M. Bender (2002) linking the record of O2/N2 ratio in the air trapped in the Vostok ice with the local insolation. More recently, it has been proposed that the long-term changes in air content, V, recorded in ice from the high Antarctic plateau is also dominantly imprinted by the local summer insolation (Raynaud et al., 2007). The present paper presents a new V record from Vostok, which is compared with the published Vostok O2/N2 record for the same period of time (150-400 ka BP) by using the same spectral analysis methods. The spectral differences between the two properties and the possible mechanisms linking them with insolation through the surface snow structure and the close-off processes are discussed. The main result of our study is that the two experimentally independent local insolation proxies lead to absolute (orbital) time scales, which agree together within a standard deviation of 0.6 ka. This result strongly adds credibility to the air content of ice and the O2 to N2 ratio of the air trapped in ice as equally reliable and complementary tools for accurate dating of existing and future deep ice cores. References: M. Bender, Orbital tuning chronology for the Vostok climate record supported by trapped gas composition, Earth and Planetary Science Letters 204(2002) 275-289. D. Raynaud, V. Lipenkov, B. Lemieux-Dudon, P. Duval, M.F. Loutre, N. Lhomme, The local insolation signature of air content in Antarctic ice: a new step toward an absolute dating of ice records, Earth and Planetary Science Letters 261(2007) 337-349.

Development of a standardized Intranet database of formulation records for nonsterile compounding, Part 2.

PubMed

Haile, Michael; Anderson, Kim; Evans, Alex; Crawford, Angela

2012-01-01

In part 1 of this series, we outlined the rationale behind the development of a centralized electronic database used to maintain nonsterile compounding formulation records in the Mission Health System, which is a union of several independent hospitals and satellite and regional pharmacies that form the cornerstone of advanced medical care in several areas of western North Carolina. Hospital providers in many healthcare systems require compounded formulations to meet the needs of their patients (in particular, pediatric patients). Before a centralized electronic compounding database was implemented in the Mission Health System, each satellite or regional pharmacy affiliated with that system had a specific set of formulation records, but no standardized format for those records existed. In this article, we describe the quality control, database platform selection, description, implementation, and execution of our intranet database system, which is designed to maintain, manage, and disseminate nonsterile compounding formulation records in the hospitals and affiliated pharmacies of the Mission Health System. The objectives of that project were to standardize nonsterile compounding formulation records, create a centralized computerized database that would increase healthcare staff members' access to formulation records, establish beyond-use dates based on published stability studies, improve quality control, reduce the potential for medication errors related to compounding medications, and (ultimately) improve patient safety.

Mobile nocturnal long-term monitoring of wheezing and cough.

PubMed

Gross, Volker; Reinke, Christian; Dette, Frank; Koch, Roland; Vasilescu, Dragos; Penzel, Thomas; Koehler, Ulrich

2007-02-01

Changes in normal lung sounds are an important sign of pathophysiological processes in the bronchial system and lung tissue. For the diagnosis of bronchial asthma, coughing and wheezing are important symptoms that indicate the existence of obstruction. In particular, nocturnal long-term acoustic monitoring and assessment make sense for qualitative and quantitative detection and documentation. Previous methods used for lung function diagnosis require active patient cooperation that is not possible during sleep. We developed a mobile device based on the CORSA standard that allows the recording of respiratory sounds throughout the night. To date, we have recorded 133 patients with different diagnoses (80 male, 53 female), of whom 38 were children. In 68 of the patients we could detect cough events and in 87 we detected wheezing. The recording method was tolerated by all participating adults and children. Our mobile system allows non-invasive and cooperation-independent nocturnal monitoring of acoustic symptoms in the domestic environment, especially at night, when most ailments occur.

The use of pollen, non-pollen palynomorphs, charcoal and spheroidal carbonaceous particles to date the last 250 yr in coastal California

NASA Astrophysics Data System (ADS)

Ejarque, A.; Anderson, R. S.; Reynolds, L.; Simms, A.

2016-12-01

Paleoecological study of the historical period in coastal areas is often hampered by the limitation of constructing reliable chronologies in recent sedimentary records. The coupling of radionuclide dating (210Pb, 239+240Pu) with stratigraphic changes of paleoecological markers indicative of land-usage can be an effective alternative to radiocarbon dating to build historic chronologies. This approach has been especially useful in North American coastal areas, which have been heavily impacted by historical human activities. We present results drawn from four sedimentary records studied along the California coast in the Point Reyes Peninsula north of San Francisco and from Santa Barbara County. We employed a varied suite of independent paleoecological proxies including pollen, non-pollen palynomorphs (NPP), sedimentary charcoal analyses, and spheroidal carbonaceous particles (SCP) to identify historically documented land-use events spanning the last 250 yr. Coupling this novel combination of proxies with 239+240Pu dating and historical accounts we generated robust chronologies which included distinct dating horizons such as: 1) the introduction of agriculture following the Spanish settlement along the coast in the late 18th century, identified by means of pollen and NPP markers of exotic plants, crops and grazing; 2) the 1793 Spanish fire suppression banning traditional Indian burning in Alta California, evidenced in the decline in sedimentary charcoal; and 3) the post-1850 introduction of distinct exotic plants -i.e. blue gum (Eucalyptus) trees- and of new land-uses following the American settlement. Following this we could track the development and expansion of the oil industry in southern California by coupling SCPs profiles with regional and local data-sets of oil production. This combination of proxies has been particularly useful in coastal California, while other suites of proxies might be employed in other areas as well.

17 CFR 5.12 - Financial reports of retail foreign exchange dealers.

Code of Federal Regulations, 2014 CFR

2014-04-01

... accountant which is filed by a retail foreign exchange dealer must be filed in paper form and may not be..., either: (i) A Form 1-FR-FCM certified by an independent public accountant as of a date not more than 45... an independent public accountant as of a date not more than one year prior to the date on which such...

17 CFR 5.12 - Financial reports of retail foreign exchange dealers.

Code of Federal Regulations, 2012 CFR

2012-04-01

... accountant which is filed by a retail foreign exchange dealer must be filed in paper form and may not be..., either: (i) A Form 1-FR-FCM certified by an independent public accountant as of a date not more than 45... an independent public accountant as of a date not more than one year prior to the date on which such...

17 CFR 5.12 - Financial reports of retail foreign exchange dealers.

Code of Federal Regulations, 2013 CFR

2013-04-01

... accountant which is filed by a retail foreign exchange dealer must be filed in paper form and may not be..., either: (i) A Form 1-FR-FCM certified by an independent public accountant as of a date not more than 45... an independent public accountant as of a date not more than one year prior to the date on which such...

Initial Validation of NDVI time seriesfrom AVHRR, VEGETATION, and MODIS

NASA Technical Reports Server (NTRS)

Morisette, Jeffrey T.; Pinzon, Jorge E.; Brown, Molly E.; Tucker, Jim; Justice, Christopher O.

2004-01-01

The paper will address Theme 7: Multi-sensor opportunities for VEGETATION. We present analysis of a long-term vegetation record derived from three moderate resolution sensors: AVHRR, VEGETATION, and MODIS. While empirically based manipulation can ensure agreement between the three data sets, there is a need to validate the series. This paper uses atmospherically corrected ETM+ data available over the EOS Land Validation Core Sites as an independent data set with which to compare the time series. We use ETM+ data from 15 globally distributed sites, 7 of which contain repeat coverage in time. These high-resolution data are compared to the values of each sensor by spatially aggregating the ETM+ to each specific sensors' spatial coverage. The aggregated ETM+ value provides a point estimate for a specific site on a specific date. The standard deviation of that point estimate is used to construct a confidence interval for that point estimate. The values from each moderate resolution sensor are then evaluated with respect to that confident interval. Result show that AVHRR, VEGETATION, and MODIS data can be combined to assess temporal uncertainties and address data continuity issues and that the atmospherically corrected ETM+ data provide an independent source with which to compare that record. The final product is a consistent time series climate record that links historical observations to current and future measurements.

Earlier vegetation green-up has reduced spring dust storms.

PubMed

Fan, Bihang; Guo, Li; Li, Ning; Chen, Jin; Lin, Henry; Zhang, Xiaoyang; Shen, Miaogen; Rao, Yuhan; Wang, Cong; Ma, Lei

2014-10-24

The observed decline of spring dust storms in Northeast Asia since the 1950s has been attributed to surface wind stilling. However, spring vegetation growth could also restrain dust storms through accumulating aboveground biomass and increasing surface roughness. To investigate the impacts of vegetation spring growth on dust storms, we examine the relationships between recorded spring dust storm outbreaks and satellite-derived vegetation green-up date in Inner Mongolia, Northern China from 1982 to 2008. We find a significant dampening effect of advanced vegetation growth on spring dust storms (r = 0.49, p = 0.01), with a one-day earlier green-up date corresponding to a decrease in annual spring dust storm outbreaks by 3%. Moreover, the higher correlation (r = 0.55, p < 0.01) between green-up date and dust storm outbreak ratio (the ratio of dust storm outbreaks to times of strong wind events) indicates that such effect is independent of changes in surface wind. Spatially, a negative correlation is detected between areas with advanced green-up dates and regional annual spring dust storms (r = -0.49, p = 0.01). This new insight is valuable for understanding dust storms dynamics under the changing climate. Our findings suggest that dust storms in Inner Mongolia will be further mitigated by the projected earlier vegetation green-up in the warming world.

Application of Alkenone 14C-Based chronostratigraphy in carbonate barren sediments on the Peru Margin.

NASA Astrophysics Data System (ADS)

Higginson, M. J.; Altabet, M. A.; Herbert, T. D.

2003-04-01

Despite the availability of high-quality sediment cores in key locations, little paleoclimatic information exists for the Peru margin largely because poor carbonate preservation severely restricts the use of traditional carbonate-based proxies for stratigraphy, dating, and paleo-environmental reconstruction. Many sites also include hiatuses produced by the variable influence of undercurrents on sediment accumulation. To overcome these difficulties, we have developed (in collaboration with T. Eglinton, WHOI) a laboratory facility to successfully extract and purify haptophyte-derived alkenones for compound specific 14C AMS dating (modified from OHKOUCHI et al., 2002). This avoids potential problems with dating bulk organic carbon which we assume, even in an upwelling environment as highly productive as the Peru margin, is not a priori solely of marine origin. In a recently collected, mid-Peru Margin core (ODP Leg 201 Site 1228D), comparison of our alkenone 14C dates with bulk sediment organic carbon dates and known stratigraphic markers produces a very well constrained, curvilinear age-depth relationship for at least the last 14 Kyr. A discrete ash layer at Site 1228D with an adjacent alkenone 14C age of 3890 ± 350 yr, is within error identical to the 14C age of a prominent ash layer (3800 ± 50 yr) found west of the large Peruvian El Misti volcano (16^o18'S, 71^o24'W). In summary, these results show that the Peru margin alkenones are autochthonous (i.e. not from an older, distant source) and provide sufficient dating precision to permit, for the first time, high-resolution paleoceanographic studies in this highly important marine province. Based upon this new chronology, synchronous changes in alkenone-derived SST estimates in two of our independently-dated records are the first to record at high-resolution (a) a large LGM-Holocene SST range in the Tropics (up to 7.8 ^oC during brief events in this upwelling location); and (b) sharp coolings (4 ^oC) consistent with the timing of the Younger Dryas. We presume that the enlarged SST amplitude of these sites comes from the sensitivity of the Peru margin to the dominant upwelling signal and its proximity to the Andes, from which there is evidence for a Younger Dryas response. The appearance of a Bolling-Allerod/Younger Dryas SST reversal consistent with published dates is further verification of our chronostratigraphic methods.

76 FR 66917 - Privacy Act of 1974; Notice To Amend an Existing System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-28

... methodologies. DATES: The proposed amendment to this existing system of records will become effective without... that this amendment should not become effective on that date. Comments regarding this amendment must be...: Name, date and place of birth, social security number, citizenship status, grade, organization...

5 CFR 1655.1 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... according to a schedule of payments. Date of application means the day on which the TSP record keeper... issue date means the date on which the TSP record keeper disburses funds from the participant's account for the loan amount. Loan repayment period means the time over which payments that are required to...

Comments on 'Origin of British and Irish mammals: disparate post-glacial colonisation and species introductions' by W.I. Montgomery, J. Provan, A.M. McCabe, and D.W. Yalden

NASA Astrophysics Data System (ADS)

Edwards, Ceiridwen J.

2014-12-01

Montgomery et al.'s recent paper in QSR (2014; vol. 98: 144-165) is a most welcome addition to the ongoing research into the origins of Irish mammals. In their Table 1, the authors have used "calibrated carbon dating, comparable stratigraphy and historical records … to establish the earliest known time of arrival of a species in […] Ireland […] where relevant, the latest record of a mammal species [was] used to establish the earliest date after which it was extinct". It is assumed that the dates mentioned in this table are, therefore, calibrated. However, this is very unclear - when dates generated by the Irish Quaternary Fauna project (Woodman et al., 1997) are compared with those used by Montgomery et al. (2014), the earliest recorded dates of Mountain/Irish hare, Irish stoat, lynx and pine marten seem to be direct uncalibrated dates. It is also unclear whether the earliest and latest records of each species relate to all published data available at the time of writing. Even if only consulting those dates generated by Woodman et al. (1997), there are older earliest records for Arctic Fox, Collared lemming and grey wolf. In addition, Montgomery et al. (2014) do not seem to have included early radiocarbon dates for giant deer, reindeer and red deer (Woodman et al., 1997; Carden et al., 2012), or any of the recent radiocarbon dates for brown bear (Edwards et al., 2011), despite reference to these papers.

75 FR 12565 - Proclaiming Certain Lands as an Addition to the Confederated Tribes of the Chehalis Reservation...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-16

... Washington by Warranty Deed dated March 13, 1985, recorded April 22, 1985, under Auditor's File No. 850422081... dated December 15, 1989, recorded January 22, 1990 under Auditor's File No. 900123052, records of Grays... Washington by Warranty Deed recorded February 11, 1985, under Auditor's File No. 850211040, situated in the...

Validation of asthma recording in electronic health records: protocol for a systematic review.

PubMed

Nissen, Francis; Quint, Jennifer K; Wilkinson, Samantha; Mullerova, Hana; Smeeth, Liam; Douglas, Ian J

2017-05-29

Asthma is a common, heterogeneous disease with significant morbidity and mortality worldwide. It can be difficult to define in epidemiological studies using electronic health records as the diagnosis is based on non-specific respiratory symptoms and spirometry, neither of which are routinely registered. Electronic health records can nonetheless be valuable to study the epidemiology, management, healthcare use and control of asthma. For health databases to be useful sources of information, asthma diagnoses should ideally be validated. The primary objectives are to provide an overview of the methods used to validate asthma diagnoses in electronic health records and summarise the results of the validation studies. EMBASE and MEDLINE will be systematically searched for appropriate search terms. The searches will cover all studies in these databases up to October 2016 with no start date and will yield studies that have validated algorithms or codes for the diagnosis of asthma in electronic health records. At least one test validation measure (sensitivity, specificity, positive predictive value, negative predictive value or other) is necessary for inclusion. In addition, we require the validated algorithms to be compared with an external golden standard, such as a manual review, a questionnaire or an independent second database. We will summarise key data including author, year of publication, country, time period, date, data source, population, case characteristics, clinical events, algorithms, gold standard and validation statistics in a uniform table. This study is a synthesis of previously published studies and, therefore, no ethical approval is required. The results will be submitted to a peer-reviewed journal for publication. Results from this systematic review can be used to study outcome research on asthma and can be used to identify case definitions for asthma. CRD42016041798. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

An ice core record of net snow accumulation and seasonal snow chemistry at Mt. Waddington, southwest British Columbia, Canada

NASA Astrophysics Data System (ADS)

Neff, P. D.; Steig, E. J.; Clark, D. H.; McConnell, J. R.; Pettit, E. C.; Menounos, B.

2011-12-01

We recovered a 141 m ice core from Combatant Col (51.39°N, 125.22°W, 3000 m asl) on the flank of Mt. Waddington, southern Coast Mountains, British Columbia, Canada. Aerosols and other impurities in the ice show unambiguous seasonal variations, allowing for annual dating of the core. Clustered melt layers, originating from summer surface heating, also aid in the dating of the core. Seasonality in water stable isotopes is preserved throughout the record, showing little evidence of diffusion at depth, and serves as an independent verification of the timescale. The annual signal of deuterium excess is especially well preserved. The record of lead deposition in the core agrees with those of ice cores from Mt. Logan and from Greenland, with a sharp drop-off in concentration in the 1970s and early 1980s, further validating the timescales. Despite significant summertime melt at this mid-latitude site, these data collectively reveal a continuous and annually resolved 36-year record of snow accumulation. We derived an accumulation time series from the Mt. Waddington ice core, after correcting for ice flow. Years of anomalously high or low snow accumulation in the core correspond with extremes in precipitation data and geopotential height anomalies from reanalysis data that make physical sense. Specifically, anomalously high accumulation years at Mt. Waddington correlate with years where "Pineapple Express" atmospheric river events bring large amounts of moisture from the tropical Pacific to western North America. The Mt. Waddington accumulation record thus reflects regional-scale climate. These results demonstrate the potential of ice core records from temperate glaciers to provide meaningful paleoclimate information. A longer core to bedrock (250-300 m) at the Mt. Waddington site could yield ice with an age of several hundred to 1000 years.

40 CFR 63.7560 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... CATEGORIES (CONTINUED) National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial... keep each record for 5 years following the date of each occurrence, measurement, maintenance... date of each occurrence, measurement, maintenance, corrective action, report, or record, according to...

Representation of layer-counted proxy records as probability densities on error-free time axes

NASA Astrophysics Data System (ADS)

Boers, Niklas; Goswami, Bedartha; Ghil, Michael

2016-04-01

Time series derived from paleoclimatic proxy records exhibit substantial dating uncertainties in addition to the measurement errors of the proxy values. For radiometrically dated proxy archives, Goswami et al. [1] have recently introduced a framework rooted in Bayesian statistics that successfully propagates the dating uncertainties from the time axis to the proxy axis. The resulting proxy record consists of a sequence of probability densities over the proxy values, conditioned on prescribed age values. One of the major benefits of this approach is that the proxy record is represented on an accurate, error-free time axis. Such unambiguous dating is crucial, for instance, in comparing different proxy records. This approach, however, is not directly applicable to proxy records with layer-counted chronologies, as for example ice cores, which are typically dated by counting quasi-annually deposited ice layers. Hence the nature of the chronological uncertainty in such records is fundamentally different from that in radiometrically dated ones. Here, we introduce a modification of the Goswami et al. [1] approach that is specifically designed for layer-counted proxy records, instead of radiometrically dated ones. We apply our method to isotope ratios and dust concentrations in the NGRIP core, using a published 60,000-year chronology [2]. It is shown that the further one goes into the past, the more the layer-counting errors accumulate and lead to growing uncertainties in the probability density sequence for the proxy values that results from the proposed approach. For the older parts of the record, these uncertainties affect more and more a statistically sound estimation of proxy values. This difficulty implies that great care has to be exercised when comparing and in particular aligning specific events among different layer-counted proxy records. On the other hand, when attempting to derive stochastic dynamical models from the proxy records, one is only interested in the relative changes, i.e. in the increments of the proxy values. In such cases, only the relative (non-cumulative) counting errors matter. For the example of the NGRIP records, we show that a precise estimation of these relative changes is in fact possible. References: [1] Goswami et al., Nonlin. Processes Geophys. (2014) [2] Svensson et al., Clim. Past (2008)

7 CFR 225.8 - Records and reports.

Code of Federal Regulations, 2011 CFR

2011-01-01

... administrative and operating costs. These records shall be retained for a period of three years after the date of... audit findings have not been resolved, the affected records shall be retained beyond the three year... a period of three years following the date of the final determination on the review or appeal...

7 CFR 225.8 - Records and reports.

Code of Federal Regulations, 2014 CFR

2014-01-01

... administrative and operating costs. These records shall be retained for a period of three years after the date of... audit findings have not been resolved, the affected records shall be retained beyond the three year... a period of three years following the date of the final determination on the review or appeal...

7 CFR 225.8 - Records and reports.

Code of Federal Regulations, 2013 CFR

2013-01-01

... administrative and operating costs. These records shall be retained for a period of three years after the date of... audit findings have not been resolved, the affected records shall be retained beyond the three year... a period of three years following the date of the final determination on the review or appeal...

7 CFR 225.8 - Records and reports.

Code of Federal Regulations, 2012 CFR

2012-01-01

... administrative and operating costs. These records shall be retained for a period of three years after the date of... audit findings have not been resolved, the affected records shall be retained beyond the three year... a period of three years following the date of the final determination on the review or appeal...

76 FR 21768 - Privacy Act of 1974; Consolidation of System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-18

... inventory of record systems titled, Department of Homeland Security/Directorate of Science and Technology... the existing Department of Homeland Security system of records notice titled, Department of Homeland Security/ALL--002 Mailing and Other Lists System, November 25, 2008. DATES: Effective Date: May 18, 2011...

77 FR 18857 - Final Environmental Impact Statement and Record of Decision for Alabama Beach Mouse General...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-28

...] Final Environmental Impact Statement and Record of Decision for Alabama Beach Mouse General Conservation... mouse (Peromyscus polionotus ammobates). For record of decision (ROD) availability, see DATES. DATES... beach mouse incidental to construction of up to 500 single-family developments potentially affecting an...

38 CFR 21.9635 - Discontinuance dates.

Code of Federal Regulations, 2013 CFR

2013-07-01

... effective the last date of attendance; and (ii) Independent study or distance learning effective on the... learning, VA will terminate educational assistance effective the date the last lesson was serviced... Discontinuance dates. The effective date of a reduction or discontinuance of educational assistance will be as...

Age model for a continuous, ca 250-ka Quaternary lacustrine record from Bear Lake, Utah-Idaho

USGS Publications Warehouse

Colman, Steven M.; Kaufman, D.S.; Bright, Jordon; Heil, C.; King, J.W.; Dean, W.E.; Rosenbaum, J.G.; Forester, R.M.; Bischoff, J.L.; Perkins, Marie; McGeehin, J.P.

2006-01-01

The Quaternary sediments sampled by continuous 120-m-long drill cores from Bear Lake (Utah-Idaho) comprise one of the longest lacustrine sequences recovered from an extant lake. The cores serve as a good case study for the construction of an age model for sequences that extend beyond the range of radiocarbon dating. From a variety of potential age indicators, we selected a combination of radiocarbon ages, one magnetic excursion (correlated to a standard sequence), and a single Uranium-series age to develop an initial data set. The reliability of the excursion and U-series data require consideration of their position with respect to sediments of inferred interglacial character, but not direct correlation with other paleoclimate records. Data omitted from the age model include amino acid age estimates, which have a large amount of scatter, and tephrochronology correlations, which have relatively large uncertainties. Because the initial data set was restricted to the upper half of the BL00-1 core, we inferred additional ages by direct correlation to the independently dated paleoclimate record from Devils Hole. We developed an age model for the entire core using statistical methods that consider both the uncertainties of the original data and that of the curve-fitting process, with a combination of our initial data set and the climate correlations as control points. This age model represents our best estimate of the chronology of deposition in Bear Lake. Because the age model contains assumptions about the correlation of Bear Lake to other climate records, the model cannot be used to address some paleoclimate questions, such as phase relationships with other areas.

The Life and Times of Supervolcanoes: Inferences from Long Valley Caldera

NASA Technical Reports Server (NTRS)

Simon, Justin

2014-01-01

Cataclysmic eruptions of silicic magma from "supervolcanoes" are among the most awe-inspiring natural phenomena found in the geologic record, in terms of size, power, and potential hazard. Based on the repose intervals between eruptions of this magnitude, the magmas responsible for them could accumulate gradually in the shallow crust over time scales that may be in excess of a million years (Smith, 1979; Spera and Crisp, 1981; Shaw, 1985). Pre-eruption magma residence time scales can also be inferred from the age difference between eruption (i.e., using 40Ar/39Ar dating to determine the time when hot erupted material cools to below its Ar closure temperature, 200 to 600 degC) and early pre-eruption crystallization (i.e., zircon saturation temperatures; Reid et al., 1997). I will discuss observations from Long Valley a Quaternary volcanic center in California. Long Valley is a voluminous, dominantly silicic caldera system. Based on extensive dating of accessory minerals (e.g., U-Th-Pb dating of zircon and allanite) along with geochemical and isotopic data we find that silicic magmas begin to crystallize 10's to 100's of thousands of years prior to their eruption and that rhyolites record episodes of punctuated and independent evolution rather than the periodic tapping of a long-lived magma. The more punctuated versus more gradual magma accumulation rates required by the absolute and model ages, respectively, imply important differences in the mass and heat fluxes associated with the generation, differentiation, and storage of voluminous rhyolites and emphasize the need to reconcile the magmatic age differences.

44 CFR 6.72 - Effective date of new system of records or alteration of an existing system of records.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Effective date of new system of records or alteration of an existing system of records. 6.72 Section 6.72 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF HOMELAND SECURITY GENERAL IMPLEMENTATION OF THE PRIVACY ACT OF 1974 Report on New...

Intensive Survey at 11-Jd-126, Jo Daviess County, Illinois. Volume 3. Data Sheets.

DTIC Science & Technology

1983-07-01

RECORDER: P. Lurenz, Jr. H NOWO DATE:_ _____ V__Level 2 FEATURE______ DATE: 9/82 COLL#_______ 1 23 45 678919 0111 2 13 Total Sherds Rim temper1 Grt Rim...thickness in millimeters LITHIC INVENTORY - 347 - SITE# 11Jd126 LOT# 80 RECORDER: P. Lurenz, Jr. H_______________ DATE: November, 1982 V_______ FEATURE

Ultrasonographic reproductive tract measures and pelvis measures as predictors of pregnancy failure and anestrus in restricted bred beef heifers.

PubMed

Holm, Dietmar E; Nielen, Mirjam; Jorritsma, Ruurd; Irons, Peter C; Thompson, Peter N

2016-02-01

Previous reports have shown that reproductive tract score (RTS) can predict reproduction outcomes in seasonally bred beef heifers, although the accuracy can vary. Some ultrasonographic measures of the female reproductive tract and pelvis area have also been associated with reproductive outcome in young heifers. The objectives of this study were to determine which transrectal ultrasound or pelvis measures taken at a single examination are independent predictors of reproductive failure and whether the RTS system can be optimized with this information. In this observational study, year-old beef heifers (n = 488) in 2 birth cohorts were followed from just before the first breeding until confirmation of pregnancy. A single pre-breeding examination included body condition score, RTS, ultrasound measures of the reproductive tract (length and diameter of the left and right ovaries, presence and diameter of a CL, largest follicle diameter and left uterus horn diameter) and transverse and vertical diameters of the pelvis. Additional farm records including dam parity, sire, birth weight and birth date, weaning weight, weaning date, prebreeding body weight, AI dates, and semen used were available. Breeding consisted of 50 days of AI, followed 5 to 7 days later by a 42-day bull breeding period. Pregnancy failure was defined as the failure to become pregnant after the AI and bull breeding periods, while anestrus was defined as the failure to be detected in estrus during the 50-day AI period. From the prebreeding data and farm records, independent predictors of pregnancy failure and anestrus were identified using stepwise reduction in multiple logistic regression models. Age at the onset of breeding was the only consistent independent predictor of pregnancy failure and anestrus in both cohorts of this study (P < 0.05). Body condition score, uterus horn diameter, absence of a CL, largest follicle of less than 13 mm, and pelvis area (PA) were the prebreeding examination variables that remained in prognostic models (P < 0.1). Combining either the model based on the 3 remaining ultrasound measures or RTS with PA provided more accurate prognostic models for pregnancy failure and anestrus than using RTS alone (P < 0.05). It is concluded that ultrasound measures have prognostic value for pregnancy failure in restricted bred yearling heifers as a result of their association with anestrus, and that smaller PA has additional prognostic value for poorly performing heifers. Copyright © 2016 Elsevier Inc. All rights reserved.

The importance of record length in estimating the magnitude of climatic changes: an example using 175 years of lake ice-out dates in New England

USGS Publications Warehouse

Hodgkins, Glenn A.

2013-01-01

Many studies have shown that lake ice-out (break-up) dates in the Northern Hemisphere are useful indicators of late winter/early spring climate change. Trends in lake ice-out dates in New England, USA, were analyzed for 25, 50, 75, 100, 125, 150, and 175 year periods ending in 2008. More than 100 years of ice-out data were available for 19 of the 28 lakes in this study. The magnitude of trends over time depends on the length of the period considered. For the recent 25-year period, there was a mix of earlier and later ice-out dates. Lake ice-outs during the last 50 years became earlier by 1.8 days/decade (median change for all lakes with adequate data). This is a much higher rate than for longer historical periods; ice-outs became earlier by 0.6 days/decade during the last 75 years, 0.4 days/ decade during the last 100 years, and 0.6 days/decade during the last 125 years. The significance of trends was assessed under the assumption of serial independence of historical ice-out dates and under the assumption of short and long term persistence. Hypolimnion dissolved oxygen (DO) levels are an important factor in lake eutrophication and coldwater fish survival. Based on historical data available at three lakes, 32 to 46 % of the interannual variability of late summer hypolimnion DO levels was related to ice-out dates; earlier ice-outs were associated with lower DO levels.

East Asian observations

NASA Astrophysics Data System (ADS)

Stephenson, F. R.

East Asian observations are of established importance in Applied Historical Astronomy. The earliest astronomical records from this part of the world (China, Japan and Korea) originate from China. These observations, mainly of lunar eclipses, are recorded on oracle bones from the period ca. 1300 - 1050 BC. Virtually all later Chinese and other East Asian astronomical records now exist only in printed copies. The earliest surviving series of solar eclipse observations from any part of the world is contained in the Chunqiu (722 - 481 BC), a chronicle of the Chinese state of Lu. However, not until after 200 BC, with the establishment of a stable empire in China, do detailed astronomical records survive. These are mainly contained in specially compiled astrological treatises in the official dynastic histories. Such records, following the traditional style, extend down to the start of the present century. All classes of phenomena visible to the unaided eye are represented: solar and lunar eclipses, lunar and planetary movements among the constellations, comets, novae and supernovae, meteors, sunspots and the aurora borealis. Parallel, but independent series of observations are recorded in Japanese and Korean history, especially after about AD 800. Sources of Japanese records tend to be more diverse than their Chinese and Korean counterparts, but fortunately Kanda Shigeru (1935) and Ohsaki Shyoji (1994) have made extensive compilations of Japanese astronomical observations down to the 1860s. Throughout East Asia, dates were expressed in terms of a luni-solar calendar.

77 FR 66793 - Privacy Act of 1974, System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-07

... Tracking, system of records in its existing inventory. DATES: This proposed action will be effective on..., USAID is deleting the AID-29 Deployment Tracking system of records because it was never activated. Dated...-29 Deployment Tracking Reason: Based upon a review of AID-29, it has been determined that this system...

78 FR 79458 - Privacy Act of 1974; Notice of an Updated System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-30

... systems to ensure that they are relevant, necessary, accurate, up-to-date, and covered by the appropriate legal or regulatory authority. This notice is an updated Privacy Act system of records notice. DATES...] Privacy Act of 1974; Notice of an Updated System of Records AGENCY: General Services Administration...

40 CFR 63.10899 - What are my recordkeeping and reporting requirements?

Code of Federal Regulations, 2011 CFR

2011-07-01

... of each inspection, and the results of any maintenance performed on the bag filters. (ii) The date... applicable, you must keep records for bag leak detection systems as follows: (i) Records of the bag leak detection system output; (ii) Records of bag leak detection system adjustments, including the date and time...

40 CFR 60.1850 - What records must I keep for continuously monitored pollutants or parameters?

Code of Federal Regulations, 2010 CFR

2010-07-01

... carbon dioxide, as specified in § 60.1745. (h) Records of calendar dates. Include the calendar date on... continuously monitored pollutants or parameters? 60.1850 Section 60.1850 Protection of Environment... or Before August 30, 1999 Model Rule-Recordkeeping § 60.1850 What records must I keep for...

40 CFR 60.1850 - What records must I keep for continuously monitored pollutants or parameters?

Code of Federal Regulations, 2012 CFR

2012-07-01

... carbon dioxide, as specified in § 60.1745. (h) Records of calendar dates. Include the calendar date on... continuously monitored pollutants or parameters? 60.1850 Section 60.1850 Protection of Environment... or Before August 30, 1999 Model Rule-Recordkeeping § 60.1850 What records must I keep for...

40 CFR 60.1850 - What records must I keep for continuously monitored pollutants or parameters?

Code of Federal Regulations, 2011 CFR

2011-07-01

... carbon dioxide, as specified in § 60.1745. (h) Records of calendar dates. Include the calendar date on... continuously monitored pollutants or parameters? 60.1850 Section 60.1850 Protection of Environment... or Before August 30, 1999 Model Rule-Recordkeeping § 60.1850 What records must I keep for...

40 CFR 60.1850 - What records must I keep for continuously monitored pollutants or parameters?

Code of Federal Regulations, 2013 CFR

2013-07-01

... carbon dioxide, as specified in § 60.1745. (h) Records of calendar dates. Include the calendar date on... continuously monitored pollutants or parameters? 60.1850 Section 60.1850 Protection of Environment... or Before August 30, 1999 Model Rule-Recordkeeping § 60.1850 What records must I keep for...

40 CFR 60.1850 - What records must I keep for continuously monitored pollutants or parameters?

Code of Federal Regulations, 2014 CFR

2014-07-01

... carbon dioxide, as specified in § 60.1745. (h) Records of calendar dates. Include the calendar date on... continuously monitored pollutants or parameters? 60.1850 Section 60.1850 Protection of Environment... or Before August 30, 1999 Model Rule-Recordkeeping § 60.1850 What records must I keep for...

Estimation of submarine mass failure probability from a sequence of deposits with age dates

USGS Publications Warehouse

Geist, Eric L.; Chaytor, Jason D.; Parsons, Thomas E.; ten Brink, Uri S.

2013-01-01

The empirical probability of submarine mass failure is quantified from a sequence of dated mass-transport deposits. Several different techniques are described to estimate the parameters for a suite of candidate probability models. The techniques, previously developed for analyzing paleoseismic data, include maximum likelihood and Type II (Bayesian) maximum likelihood methods derived from renewal process theory and Monte Carlo methods. The estimated mean return time from these methods, unlike estimates from a simple arithmetic mean of the center age dates and standard likelihood methods, includes the effects of age-dating uncertainty and of open time intervals before the first and after the last event. The likelihood techniques are evaluated using Akaike’s Information Criterion (AIC) and Akaike’s Bayesian Information Criterion (ABIC) to select the optimal model. The techniques are applied to mass transport deposits recorded in two Integrated Ocean Drilling Program (IODP) drill sites located in the Ursa Basin, northern Gulf of Mexico. Dates of the deposits were constrained by regional bio- and magnetostratigraphy from a previous study. Results of the analysis indicate that submarine mass failures in this location occur primarily according to a Poisson process in which failures are independent and return times follow an exponential distribution. However, some of the model results suggest that submarine mass failures may occur quasiperiodically at one of the sites (U1324). The suite of techniques described in this study provides quantitative probability estimates of submarine mass failure occurrence, for any number of deposits and age uncertainty distributions.

40 CFR 63.6660 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... years following the date of each occurrence, measurement, maintenance, corrective action, report, or... years after the date of each occurrence, measurement, maintenance, corrective action, report, or record...

41 CFR 51-9.503 - Effective date of new systems of records or alteration of an existing system of records.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 41 Public Contracts and Property Management 1 2010-07-01 2010-07-01 true Effective date of new systems of records or alteration of an existing system of records. 51-9.503 Section 51-9.503 Public Contracts and Property Management Other Provisions Relating to Public Contracts COMMITTEE FOR PURCHASE FROM PEOPLE WHO ARE BLIND OR SEVERELY DISABLED 9...

The Wall-Rock Record of Incremental Emplacement in the Little Cottonwood-Alta Magmatic and Hydrothermal System, Wasatch Mountains, Utah, U.S.A.

NASA Astrophysics Data System (ADS)

Stearns, M.; Callis, S.; Beno, C.; Bowman, J. R.; Bartley, J. M.

2017-12-01

Contact aureoles record the cumulative effects on wall rocks of magma emplacement. Like the plutons they surround, contact aureoles have long been regarded to form geologically instantaneously. Protracted incremental emplacement of plutons must be reconciled with the wall-rock record of heat and mass transfer. Fundamental questions include how heat and material move from intrusions into their aureoles and how long that process takes. The Little Cottonwood stock is surrounded by a 2 km-wide contact aureole that contains prograde AFM mineral assemblages in the pelitic layers of the Proterozoic Big Cottonwood Formation. The Alta stock is surrounded by a well characterized 1 km-wide contact aureole containing both prograde AFM and CMS mineral assemblages in Ophir Shale and Mississippian dolostones, respectively. Understanding the petrogenesis of these aureoles requires the timing of magmatism and wall-rock metamorphism to be independently determined. Preliminary petrochronology (U/Th-Pb dates and trace element concentrations collected by LASS-ICP-MS) from the inner aureoles of both intrusions establishes a protracted history of monazite (re)crystallization from 35-25 Ma in the Little Cottonwood aureole and 35 Ma in the Alta aureole. Little Cottonwood aureole monazites are characterized by a positive age correlation with heavy rare earth elements (HREE) and a negative correlation with Eu/Eu*. Alta aureole monazites have a similar range of the HREE concentrations and Eu/Eu* variation. Zircon growth interpreted to record emplacement-level magmatic crystallization of the western Little Cottonwood stock ranges from 33-28 Ma near the contact. Multi-grain U-Pb zircon TIMS dates from the Alta stock range from 35-33 Ma and are interpreted to suggest the full range of emplacement-level magmatism in the Alta stock. Additionally, in situ U-Pb titanite dates from the Alta stock record intermittent high temperature hydrothermal activity in the stock margin from 35-24 Ma. These new data suggest that the Little Cottonwood aureole developed over several million years and overlapped in time with hydrothermal (re)crystallization of titanite within the Alta Stock. Both systems continued to develop after monazite (re)crystallization within Ophir Shale, which was concurrent with emplacement of the Alta Stock.

Holocene records of geomagnetic field behavior from a north-south transect along the western Antarctic Peninsula

NASA Astrophysics Data System (ADS)

Brachfeld, S. A.; Shah, D. P.; St-Onge, M.; St-Onge, G.

2013-12-01

Geochronology is inherently difficult when working with Antarctic margin sediments. Radiocarbon dating and oxygen isotope stratigraphy are challenging or impossible in sites with poor preservation of biogenic calcite. Radiocarbon dating of the acid insoluble organic matter (AIOM) is further complicated by organically lean sediment and the presence of reworked organic carbon or detrital carbon from sedimentary rocks. These complications limit the ability to interpret a paleoclimate record. Geomagnetic paleointensity dating is a proven 'tuning' technique that has been successfully applied in several studies around the Antarctic margin. However, the reference curves to which these sites were tuned were constructed primarily from Northern Hemisphere data. Here we present paleomagnetic secular variation (PSV) and relative paleointensity (RPI) data from three Antarctic Peninsula sites that possess independent chronologies and which have moderate to ultra-high sedimentation rates (40 - 700 cm/ka). Maxwell Bay, located in the volcanic South Shetland Islands, is an ultra-high-resolution site with strongly magnetic sediments from which the Shallow Drilling (SHALDRIL) program recovered a 108-m record spanning the last 14 ka. Outer Barilari Bay and Hugo Island Trough, which lie to the South along the western Antarctic Peninsula, are moderate resolution sites with a high proportion of biogenic silica. Maxwell Bay and Bariliari Bay are unique in that they possess homogenous sediment and uniform magnetic mineral assemblages, while also preserving biogenic calcite, a rare combination on the Antarctic margin. All three sites preserve strong, stable remanent magnetizations with an easily isolated characteristic component and MAD values generally < 2°, with the exception of turbidites, intervals with abundant dropstones, and biosiliceous ooze intervals. Inclination values fluctuate between the present-day value at the cores sites (-58°) and the geomagnetic axial dipole inclination (-77°) values for each site, with a temporal wavelength of approximately 1000 years. The Holocene intensity of the geomagnetic field in this region was highest during the last 3000 years, broadly similar to patterns observed in the Northern Hemisphere. The records will be stacked in order to generate a regional reference curve for the Antarctic Peninsula. Moreover, these sites have the potential to fill a spatial gap in the distribution of paleomagnetic records that are used in geomagnetic field models.

76 FR 71343 - Ethics, Independence, Arm's-Length Role, Ex Parte Communications and Open Government

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-17

... FARM CREDIT ADMINISTRATION [FCA-PS-81; NV 11-25] Ethics, Independence, Arm's-Length Role, Ex Parte...) and the public. The FCA Board also is committed to the ethics principles and laws governing all Executive Branch employees and to the Agency's strong ethics program. DATES: Effective Date: November 7...

40 CFR 63.3131 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record, as... least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or...

20 CFR 416.802 - Type of evidence to be submitted.

Code of Federal Regulations, 2010 CFR

2010-04-01

... individual is required to submit evidence of date of birth as indicated in § 416.801, he shall submit a public record of birth or a religious record of birth or baptism established or recorded before his fifth... determination of the individual's date of birth provided such evidence is corroborated by other evidence or by...

Earlier vegetation green-up has reduced spring dust storms

PubMed Central

Fan, Bihang; Guo, Li; Li, Ning; Chen, Jin; Lin, Henry; Zhang, Xiaoyang; Shen, Miaogen; Rao, Yuhan; Wang, Cong; Ma, Lei

2014-01-01

The observed decline of spring dust storms in Northeast Asia since the 1950s has been attributed to surface wind stilling. However, spring vegetation growth could also restrain dust storms through accumulating aboveground biomass and increasing surface roughness. To investigate the impacts of vegetation spring growth on dust storms, we examine the relationships between recorded spring dust storm outbreaks and satellite-derived vegetation green-up date in Inner Mongolia, Northern China from 1982 to 2008. We find a significant dampening effect of advanced vegetation growth on spring dust storms (r = 0.49, p = 0.01), with a one-day earlier green-up date corresponding to a decrease in annual spring dust storm outbreaks by 3%. Moreover, the higher correlation (r = 0.55, p < 0.01) between green-up date and dust storm outbreak ratio (the ratio of dust storm outbreaks to times of strong wind events) indicates that such effect is independent of changes in surface wind. Spatially, a negative correlation is detected between areas with advanced green-up dates and regional annual spring dust storms (r = −0.49, p = 0.01). This new insight is valuable for understanding dust storms dynamics under the changing climate. Our findings suggest that dust storms in Inner Mongolia will be further mitigated by the projected earlier vegetation green-up in the warming world. PMID:25343265

Disturbance and California riparian tree establishment

NASA Astrophysics Data System (ADS)

Bendix, J.; Cowell, C. M.

2010-12-01

As is the case in many ecosystems, tree establishment in riparian corridors is often episodic, following disturbance events that clear colonization sites. In many riparian settings, flooding is the most obvious, and relevant disturbance agent. However, in Mediterranean-climate regions, fire is an equally important disturbance agent. In California, the frequency and severity of both floods and fire are expected to change with projected climate change, making an understanding of their roles key to understanding future ecological processes in California riparian environments. In this paper, we use tree-ring data from the Transverse Ranges of Southern California to explore the relative importance of fire and flood in the establishment of riparian gallery forest. We examined 42 cores of Alnus rhombifolia, Populus fremontii and Quercus agrifolia from the riparian zone adjacent to Piedra Blanca and Potrero John Creeks in California’s Transverse Ranges, and compared their establishment dates with records of fire and floods, to see how establishment related to disturbance history. Our results show some evidence for major fire having an impact, as all of the largest stems dated to the few years following the 1932 Matilija fire, which had burned all of the sites in our sample. The remainder of the record is less straightforward, although there is an establishment peak in the 1970s, which may be related to a 1975 fire that burned part of the Potrero John watershed. Of note, the establishment chronology shows no relationship to the flood record, as years of major floods do not relate to either prolific or sparse years in the tree-ring record. This record suggests that large fires may serve as a trigger for tree establishment in California riparian settings, but that they are hardly a prerequisite, as many stems germinated between fires. Indeed, ongoing regeneration is apparently independent of disturbance, given the apparent irrelevance of flooding in this regard. The result is a gallery forest of mixed age and size, with occasional larger cohorts reflecting years in which fire did occur.

Evaluation of scanning 2D barcoded vaccines to improve data accuracy of vaccines administered.

PubMed

Daily, Ashley; Kennedy, Erin D; Fierro, Leslie A; Reed, Jenica Huddleston; Greene, Michael; Williams, Warren W; Evanson, Heather V; Cox, Regina; Koeppl, Patrick; Gerlach, Ken

2016-11-11

Accurately recording vaccine lot number, expiration date, and product identifiers, in patient records is an important step in improving supply chain management and patient safety in the event of a recall. These data are being encoded on two-dimensional (2D) barcodes on most vaccine vials and syringes. Using electronic vaccine administration records, we evaluated the accuracy of lot number and expiration date entered using 2D barcode scanning compared to traditional manual or drop-down list entry methods. We analyzed 128,573 electronic records of vaccines administered at 32 facilities. We compared the accuracy of records entered using 2D barcode scanning with those entered using traditional methods using chi-square tests and multilevel logistic regression. When 2D barcodes were scanned, lot number data accuracy was 1.8 percentage points higher (94.3-96.1%, P<0.001) and expiration date data accuracy was 11 percentage points higher (84.8-95.8%, P<0.001) compared with traditional methods. In multivariate analysis, lot number was more likely to be accurate (aOR=1.75; 99% CI, 1.57-1.96) as was expiration date (aOR=2.39; 99% CI, 2.12-2.68). When controlling for scanning and other factors, manufacturer, month vaccine was administered, and vaccine type were associated with variation in accuracy for both lot number and expiration date. Two-dimensional barcode scanning shows promise for improving data accuracy of vaccine lot number and expiration date records. Adapting systems to further integrate with 2D barcoding could help increase adoption of 2D barcode scanning technology. Published by Elsevier Ltd.

Paleohydrology of China Lake basin and the context of early human occupation in the northwestern Mojave Desert, USA

NASA Astrophysics Data System (ADS)

Rosenthal, Jeffrey S.; Meyer, Jack; Palacios-Fest, Manuel R.; Young, D. Craig; Ugan, Andrew; Byrd, Brian F.; Gobalet, Ken; Giacomo, Jason

2017-07-01

Considerable prior research has focused on the interconnected pluvial basins of Owens Lake and Searles Lake, resulting in a long record of paleohydrological change in the lower Owens River system. However, the published record is poorly resolved or contradictory for the period encompassing the terminal Pleistocene (22,000 to 11,600 cal BP) and early Holocene (11,600-8200 cal BP). This has resulted in conflicting interpretations about the timing of lacustrine high stands within the intermediate basin of China Lake, which harbors one of the most extensive records of early human occupation in the western Great Basin and California. Here, we report a broad range of radiocarbon-dated paleoenvironmental evidence, including lacustrine deposits and shoreline features, tufa outcrops, and mollusk, ostracode, and fish bone assemblages, as well as spring and other groundwater-related deposits (a.k.a. "black mats") from throughout China Lake basin, its outlet, and inflow drainages. Based on 98 radiocarbon dates, we develop independent evidence for five significant lake-level oscillations between 18,000 and 13,000 cal BP, and document the persistence of groundwater-fed wetlands from the beginning of the Younger Dryas through the early Holocene (12,900-8200 cal BP); including the transition from ground-water fed lake to freshwater marsh between about 13,000 and 12,600 cal BP. Results of this study support and refine existing evidence that shows rapid, high-amplitude oscillations in the water balance of the Owens River system during the terminal Pleistocene, and suggest widespread human use of China Lake basin began during the Younger Dryas.

Speleothem chronology with sub-annual resolution in a near-entrance cave setting using oxygen isotope and trace element records

NASA Astrophysics Data System (ADS)

Carlson, P. E.; Miller, N. R.; Banner, J.; Breecker, D.

2016-12-01

Speleothems that grow in well-ventilated zones of caves are typically avoided when selecting specimens for paleoclimate reconstruction, due to concerns about evaporation and kinetic isotope effects. Near-entrance cave environments are characterized by near-ambient CO2 concentrations year-round and are influenced by surface temperature fluctuations. At Westcave Preserve (Westcave), a shallow, well-ventilated cave in central Texas, we have found seasonal temperature differences recorded in both the oxygen isotope and trace element compositions of speleothem calcite. The seasonal nature of these records has been confirmed by monitoring the chemical composition of drip water and substrate calcite since 2009 (Feng et al., 2014; Casteel and Banner, 2015). We present an ultrahigh-resolution (weekly to monthly) record of δ18O, Mg, Sr, and Ba in Westcave stalagmite WC-3, as well as monthly measurements of drip water geochemistry. We find drip water δ18O and [Mg] are essentially invariant, while seasonal variations in stalagmite calcite δ18O and Mg compositions are in good agreement with predicted temperature-dependent fractionation between water and calcite. Both drip water and speleothem calcite Sr and Ba vary seasonally, which we hypothesize is due to seasonal changes in moisture conditions in the epikarst. We use each of these annual geochemical cycles as independent chronological controls in order to develop a single age model for the stalagmite. These independent chronological counts are consistent with each other, and with 14C bomb-peak and U-series evidence. We argue that the potential for this kind of multi-proxy, seasonally-resolved dating in near-entrance stalagmites makes them especially valuable paleoclimate archives that should not be ignored in speleothem studies.

Synchronous mid-Holocene climate deteriorations in circum-Mediterranean and their links with ancient civilizations: first speloethem and archeological evidences from N-Algeria

NASA Astrophysics Data System (ADS)

Ruan, Jiaoyang; Kherbouche, Farid; Genty, Dominique; Cheng, Hai; Dewilde, Fabien; Blamart, Dominique

2015-04-01

Over the last decades, ancient civilizations during the Holocene were heavily studied at many places around the Mediterranean region such as Libya and Italy, and changes in the past social activities were widely assumed to be linked to regional climate variability. However, in many cases the climatic records were apart from the archaeological sites and the archaeological chronologies were not well constrained, which makes these links uncertain. Here we present a 230Th-dated decadal resolution climate record for 6034-3185yr BP based on the δ18O and δ13C analyses of two overlapping stalagmites from Gueldaman GLD1 Cave (36°26'N, 4°34'E, 507 m asl), N-Algeria. Recent archaeological work in this cave brought first information about the Neolithisation process since ca 7000yr cal BP in the region where little was known before. Together with new charcoal 14C dates from the digging sections we test the link between past climate change and human activities in the cave. GLD1 stalagmite records reveal a dry event at ca 5700-5500yr BP and a drying trend toward extreme aridity, since ca 4700yr BP, peaking at ca 4200yr BP. These climatic deteriorations in N-Algeria, within dating errors, are synchronous with dry phases observed on speleothem records from central (Corchia Cave and Renella Cave, Italy) and eastern (Soreq Cave, Israel) Mediterranean. Specifically, climatic condition was harsher at ca 4200yr BP than at ca 5700-5500yr BP in central and W-Mediterranean; while it was harsher at ca 5700-5500yr BP in E-Mediterranean. The new 14C dates relatively well anchor the age of sediment layers with the richest anthropogenic deposits (i.e. charcoal, bone and Neolithic pottery) to ca 4900-4400yr cal BP, coinciding with the wettest period inferred from the stalagmite records. Shortly following this period, archaeological remains were becoming very rare in the sediments, which might be the consequence of establishing extremely arid phase at ca 4200yr BP. This suggests a possible causal relationship between the cave abandonment and aridity. Similarly, a drought at ca 4200yr BP was inferred to cause the cultural collapse of the Uruk society in Mesopotamia and the Akkadian Empire in N-Africa. In the E-Mediterranean, although the early to late Bronze Age transition was coincident with the dry phase at that time, the major cultural transform from the Chalcolithic to the Bronze Age occurred at ca 5700-5500yr BP when the more severe drought was established. These observations suggest close links between past climate changes and ancient civilizations even though they might evolve independently at different sites.

Clastic sediment flux to tropical Andean lakes: records of glaciation and soil erosion

NASA Astrophysics Data System (ADS)

Rodbell, Donald T.; Seltzer, Geoffrey O.; Mark, Bryan G.; Smith, Jacqueline A.; Abbott, Mark B.

2008-08-01

We developed records of clastic sediment flux to 13 alpine lakes in Peru, Ecuador, and Bolivia, and compared these with independently dated records of regional glaciation. Our objectives are to determine whether a strong relationship exists between the extent of ice cover in the region and the rate of clastic sediment delivery to alpine lakes, and thus whether clastic sediment records serve as reliable proxies for glaciation during the late Pleistocene. We isolated the clastic component in lake sediment cores by removing the majority of the biogenic and authigenic components from the bulk sediment record, and we dated cores by a combination of radiocarbon and tephrochronology. In order to partially account for intra-basin differences in sediment focusing, bedrock erosivity, and sediment availability, we normalized each record to the weighted mean value of clastic sediment flux for each respective core. This enabled the stacking of all 13 lake records to produce a composite record that is generally representative of the tropical Andes. There is a striking similarity between the composite record of clastic sediment flux and the distribution of ˜100 cosmogenic radionuclide (CRN) exposure ages for erratics on moraine crests in the central Peruvian and northern Bolivian Andes. The extent of ice cover thus appears to be the primary variable controlling the delivery of clastic sediment to alpine lakes in the region, which bolsters the increasing use of clastic sediment flux as a proxy for the extent of ice cover in the region. The CRN moraine record and the stacked lake core composite record together indicate that the expansion of ice cover and concomitant increase in clastic sediment flux began at least 40 ka, and the local last glacial maximum (LLGM) culminated between 30 and 20 ka. A decline in clastic sediment flux that began ˜20 ka appears to mark the onset of deglaciation from the LLGM, at least one millennium prior to significant warming in high latitude regions. The interval between 20 and 18 ka was marked by near-Holocene levels of clastic sediment flux, and appears to have been an interval of much reduced ice extent. An abrupt increase in clastic sediment flux 18 ka heralded the onset of an interval of expanded ice cover that lasted until ˜14 ka. Clastic sediment flux declined thereafter to reach the lowest levels of the entire length of record during the early-middle Holocene. A middle Holocene climatic transition is apparent in nearly all records and likely reflects the onset of Neoglaciation and/or enhanced soil erosion in the tropical Andes.

A complete representation of uncertainties in layer-counted paleoclimatic archives

NASA Astrophysics Data System (ADS)

Boers, Niklas; Goswami, Bedartha; Ghil, Michael

2017-09-01

Accurate time series representation of paleoclimatic proxy records is challenging because such records involve dating errors in addition to proxy measurement errors. Rigorous attention is rarely given to age uncertainties in paleoclimatic research, although the latter can severely bias the results of proxy record analysis. Here, we introduce a Bayesian approach to represent layer-counted proxy records - such as ice cores, sediments, corals, or tree rings - as sequences of probability distributions on absolute, error-free time axes. The method accounts for both proxy measurement errors and uncertainties arising from layer-counting-based dating of the records. An application to oxygen isotope ratios from the North Greenland Ice Core Project (NGRIP) record reveals that the counting errors, although seemingly small, lead to substantial uncertainties in the final representation of the oxygen isotope ratios. In particular, for the older parts of the NGRIP record, our results show that the total uncertainty originating from dating errors has been seriously underestimated. Our method is next applied to deriving the overall uncertainties of the Suigetsu radiocarbon comparison curve, which was recently obtained from varved sediment cores at Lake Suigetsu, Japan. This curve provides the only terrestrial radiocarbon comparison for the time interval 12.5-52.8 kyr BP. The uncertainties derived here can be readily employed to obtain complete error estimates for arbitrary radiometrically dated proxy records of this recent part of the last glacial interval.

The impact of Last Glacial climate variability in west-European loess revealed by radiocarbon dating of fossil earthworm granules.

PubMed

Moine, Olivier; Antoine, Pierre; Hatté, Christine; Landais, Amaëlle; Mathieu, Jérôme; Prud'homme, Charlotte; Rousseau, Denis-Didier

2017-06-13

The characterization of Last Glacial millennial-timescale warming phases, known as interstadials or Dansgaard-Oeschger events, requires precise chronologies for the study of paleoclimate records. On the European continent, such chronologies are only available for several Last Glacial pollen and rare speleothem archives principally located in the Mediterranean domain. Farther north, in continental lowlands, numerous high-resolution records of loess and paleosols sequences show a consistent environmental response to stadial-interstadial cycles. However, the limited precision and accuracy of luminescence dating methods commonly used in loess deposits preclude exact correlations of paleosol horizons with Greenland interstadials. To overcome this problem, a radiocarbon dating protocol has been developed to date earthworm calcite granules from the reference loess sequence of Nussloch (Germany). Its application yields a consistent radiocarbon chronology of all soil horizons formed between 47 and 20 ka and unambiguously shows the correlation of every Greenland interstadial identified in isotope records with specific soil horizons. Furthermore, eight additional minor soil horizons dated between 27.5 and 21 ka only correlate with minor decreases in Greenland dust records. This dating strategy reveals the high sensitivity of loess paleoenvironments to Northern Hemisphere climate changes. A connection between loess sedimentation rate, Fennoscandian ice sheet dynamics, and sea level changes is proposed. The chronological improvements enabled by the radiocarbon "earthworm clock" thus strongly enhance our understanding of loess records to a better perception of the impact of Last Glacial climate changes on European paleoenvironments.

The impact of Last Glacial climate variability in west-European loess revealed by radiocarbon dating of fossil earthworm granules

PubMed Central

Moine, Olivier; Antoine, Pierre; Hatté, Christine; Landais, Amaëlle; Mathieu, Jérôme; Prud’homme, Charlotte

2017-01-01

The characterization of Last Glacial millennial-timescale warming phases, known as interstadials or Dansgaard–Oeschger events, requires precise chronologies for the study of paleoclimate records. On the European continent, such chronologies are only available for several Last Glacial pollen and rare speleothem archives principally located in the Mediterranean domain. Farther north, in continental lowlands, numerous high-resolution records of loess and paleosols sequences show a consistent environmental response to stadial–interstadial cycles. However, the limited precision and accuracy of luminescence dating methods commonly used in loess deposits preclude exact correlations of paleosol horizons with Greenland interstadials. To overcome this problem, a radiocarbon dating protocol has been developed to date earthworm calcite granules from the reference loess sequence of Nussloch (Germany). Its application yields a consistent radiocarbon chronology of all soil horizons formed between 47 and 20 ka and unambiguously shows the correlation of every Greenland interstadial identified in isotope records with specific soil horizons. Furthermore, eight additional minor soil horizons dated between 27.5 and 21 ka only correlate with minor decreases in Greenland dust records. This dating strategy reveals the high sensitivity of loess paleoenvironments to Northern Hemisphere climate changes. A connection between loess sedimentation rate, Fennoscandian ice sheet dynamics, and sea level changes is proposed. The chronological improvements enabled by the radiocarbon “earthworm clock” thus strongly enhance our understanding of loess records to a better perception of the impact of Last Glacial climate changes on European paleoenvironments. PMID:28559353

38 CFR 21.7131 - Commencing dates.

Code of Federal Regulations, 2010 CFR

2010-07-01

... standard college degree. (1) When the student enrolls in a course offered by independent study, the commencing date of the award or increased award of educational assistance will be the date the student began...) When a student enrolls in a resident course or subject, the commencing date of the award or increased...

77 FR 29619 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-18

... system: Name, Social Security Number (SSN), gender, race/ethnicity, birth date, place of birth, home..., spouse information, marital status, dependent child information (citizenship, gender, date of birth..., accessing, retaining, and disposing of records in the system: Storage: Electronic storage media...

Retrospective observational assessment of statin adherence among subjects patronizing different types of community pharmacies in Canada.

PubMed

Evans, Charity D; Eurich, Dean T; Lamb, Darcy A; Taylor, Jeffrey G; Jorgenson, Derek J; Semchuk, William M; Mansell, Kerry D; Blackburn, David F

2009-01-01

Community pharmacies vary widely in terms of ownership structures, location, and dispensing policies. It is unknown if an association exists between the type of community pharmacy and the degree of medication adherence exhibited by patrons-patients. To describe adherence to statin therapy among subjects patronizing different types of community pharmacy categories (department- mass merchandise, chain-franchise, and independent-banner) in Saskatchewan, Canada, between 2000 and 2005. Study data were obtained from the Saskatchewan Drug Plan and Extended Benefits database, which is maintained by the government of Saskatchewan, Canada. The study included all subjects who (a) filled a statin prescription within selected community pharmacies between January 1, 2000, and December 31, 2005; (b) had no record of statin prescriptions during the year prior to the first statin prescription, according to the records of the Saskatchewan Drug Plan and Extended Benefits; and (c) demonstrated active utilization in the drug plan database for at least 1 year after the first statin prescription. The proxy criterion for activity was any dispensing record for statin or nonstatin medications at least 1 year following the index claim. Statin adherence level was estimated as tablets per day, defined as the total number of tablets dispensed divided by the total number of days of observation. Each subject's observation period began on the index date and ended on the earlier of (a) 30 days after the last recorded fill for any type of prescription medication (statin or nonstatin), or (b) December 31, 2005. The primary end point was the proportion of subjects within each pharmacy category who maintained an adherence level of 80% or greater during their individual observation period. Additional adherence calculations were performed for each of 3 time periods, beginning on the index date and ending on days 365, 729, and 1094 (i.e., 1, 2, and 3 years). Patients were included in the analysis for each time period if they met a proxy criterion for availability for observation, defined as the dispensing of any drug at least 1 day after the end date of each period. Pearson chi square tests were used to assess the significance of differences in baseline characteristics and adherence proportions, comparing pharmacy categories. Logistic regression analysis estimated the odds of an adherence level of at least 80% during the individual observation period, adjusting for pharmacy category, sex, age 65 years or older, known low-income drug coverage, number of distinct drug classes filled concurrently during the first year of observation, loyalty to index pharmacy, and length of observation. Using similar methods, we also estimated "pharmacy loyalty" by calculating the proportion of subjects who refilled 75% or more of their statin prescriptions at the pharmacy that dispensed their first statin prescription. From an initial sample of 12,818 subjects who had at least 1 pharmacy claim for a statin in the period from January 1, 2000, through December 31, 2005, 8699 subjects met the inclusion criteria. Subjects were observed for a mean (SD, range) of 3.7 (1.7, 1.0-7.0) years after the index statin prescription. During the first year following the index claim, statin adherence rates were at least 80% for 1799 of 3761 (47.8%) patrons of department-mass merchandise, 1778 of 3235 (55.0%) patrons of chain-franchise, and 921 of 1703 (54.1%) patrons of independent-banner stores (P < 0.001). Measured from the index date through day 1094, 869 of 2292 (37.9%), 874 of 1887 (46.3%), and 457 of 975 (46.9%) subjects in the department-mass merchandise, chain-franchise, and independent banner categories, respectively, had a statin adherence level of at least 80% (P < 0.001). In logistic regression analysis, pharmacy category type was significantly associated with statin adherence; subjects in the chain franchise and independent-banner categories were more likely to be adherent to their statin medications during their observation periods than were those in the department-mass merchandise category (adjusted odds ratio [OR] = 1.36, 95% CI = 1.23-1.50, P < 0.001 and OR = 1.39, 95% CI = 1.24-1.57, P < 0.001, respectively). From the index date through day 1094, 1752 of 2292 (76.4%), 1475 of 1887 (78.2%), and 795 of 975 (81.5%) subjects remained pharmacy-loyal in the department-mass merchandise, chain franchise, and independent-banner categories, respectively (P = 0.006). Controlling for several potential confounders using logistic regression, independent-banner pharmacy patrons were more likely to remain pharmacy- loyal during their observation periods than were those patronizing department-mass merchandise (adjusted OR = 1.34, 95% CI = 1.16-1.54, P < 0.001) or chain-franchise stores (adjusted OR = 1.22, 95% CI = 1.06-1.42, P = 0.009). One year after their first statin fill, subjects demonstrated low rates of adherence, ranging from 48% to 55%, regardless of the type of pharmacy they patronized. Although the differences by type of pharmacy reached statistical significance, their clinical importance is not evident, reinforcing the fact that the problem of nonadherence appears to exist among all types of community pharmacies, regardless of their categorization.

29 CFR 570.10 - Rules for certificates of age in the State of Alaska and the Territory of Guam.

Code of Federal Regulations, 2010 CFR

2010-07-01

... § 570.5: (a) A birth certificate or attested transcript thereof, or a signed statement of the recorded date and place of birth issued by a registrar of vital statistics or other officer charged with the duty of recording births, or (b) A record of baptism or attested transcript thereof showing the date of...

Dating of fossil human teeth and shells from Toca do Enoque site at Serra das Confusões National Park, Brazil.

PubMed

Kinoshita, Angela; Sullasi, Henry L; Asfora, Viviane K; Azevedo, Renata L; Guzzo, Pedro; Guidon, Niede; Figueiredo, Ana Maria G; Khoury, Helen; Pessis, Anne-Marie; Baffa, Oswaldo

2016-06-07

This work reports the dating of a fossil human tooth and shell found at the archaeological site Toca do Enoque located in Serra das Confusões National Park (Piauí, Brazil). Many prehistoric paintings have been found at this site. An archaeological excavation unearthed three sepulchers with human skeletons and some shells. Two Brazilian laboratories, in Ribeirão Preto (USP) and Recife (UFPE), independently performed Electron Spin Resonance (ESR) measurements to date the tooth and the shell and obtain the equivalent dose received by each sample. The laboratories determined similar ages for the tooth and the shell (~4.8 kyBP). The results agreed with C-14 dating of the shell and other samples (charcoal) collected in the same sepulcher. Therefore, this work provides a valid inter-comparison of results by two independent ESR-dating laboratories and between two dating methods; i.e., C-14 and ESR, showing the validity of ESR dating for this range of ages.

[From planning to realization of an electronic patient record].

PubMed

Krämer, T; Rapp, R; Krämer, K L

1999-03-01

The high complex requirements on information and information flow in todays hospitals can only be accomplished by the use of modern Information Systems (IS). In order to achieve this, the Stiftung Orthopädische Universitätsklinik has carried out first the Project "Strategic Informations System Planning" in 1993. Then realizing the necessary infrastructure (network; client-server) from 1993 to 1997, and finally started the introduction of modern IS (SAP R/3 and IXOS-Archive) in the clinical area. One of the approved goal was the replacement of the paper medical record by an up-to-date electronical medical record. In this article the following three topics will be discussed: the difference between the up-to-date electronical medical record and the electronically archived finished cases, steps performed by our clinic to realize the up-to-date electronical medical record and the problems occurred during this process.

From planning to realisation of an electronic patient record.

PubMed

Krämer, T; Rapp, R; Krämer, K-L

1999-03-01

The high complex requirements on information and information flow in todays hospitals can only be accomplished by the use of modern Information Systems (IS). In order to achieve this, the Stiftung Orthopädische Universitätsklinik has carried out first the Project "Strategic Informations System Planning" in 1993. Then realizing the neccessary infrastructure (network; client-server) from 1993 to 1997, and finally started the introduction of modern IS (SAP R/3 and IXOS-Archive) in the clinical area. One of the approved goal was the replacement of the paper medical record by an up-to-date electronical medical record. In this article the following three topics will be discussed: the difference between the up-to-date electronical medical record and the electronically archived finished cases, steps performed by our clinic to realize the up-to-date electronical medical record and the problems occured during this process.

Discovery of the Lost Star Catalog of Hipparchus on the Farnese Atlas

NASA Astrophysics Data System (ADS)

Schaefer, B. E.

2004-12-01

Hipparchus was the greatest astronomer in Antiquity, with part of his reputation being based on his creation of the first star catalog around 129 BC. His star catalog has been since lost, although a few partial star positions are recorded in his only surviving work, the Commentary. Independently, a late Roman statue called the Farnese Atlas (now in Naples) has been known since the Middle Ages which records ancient Greek constellations. This marble statue shows the Titan Atlas kneeling on one knee while hold a large globe (65 cm in diameter) on one shoulder. This globe records 41 constellations accurately placed against a grid of reference circles, including the equator, tropics, colures, Arctic circle, and Antarctic circle. As the constellation positions shift over time (due to precession as discovered by Hipparchus), the position of the constellations on the Titan's globe will reveal the date of observations as ultimately used by the sculptor. Prior brief work on the globe has resulted in dates spread out over six centuries, with recent reviews only concluding that a thorough study is desperately needed. To fill this need, I have taken photographs appropriate for photogrammetry and have measured the positions of 70 points in the constellation figures and transformed these into RA and DEC in the globe's reference frame. A chi-square analysis then shows the date of the constellations to be 125 BC with a one-sigma uncertainty of 55 years. This date points directly at Hipparchus as being the observer and it strongly excludes all candidates that have been proposed over the past century (Aratus at c. 275 BC, Eudoxus at c. 366 BC, the original Assyrian observer at c. 1130 BC, and Ptolemy at AD 128). In addition, a very detailed comparison of the constellation figures and symbols on the Atlas' globe has been made with Hipparchus' Commentary, Aratus' (and Eudoxus') Phaenomena, Eratosthenes' Catasterismi, and Ptolemy's Almagest. I find essentially perfect agreement with Hipparchus' description of the sky (including many points unique to Hipparchus) with the Farnese Atlas; while all other ancient sources have many significant differences. In all, I have the very confident conclusion that the constellation figures on the Farnese Atlas are a depiction of Hipparchus' lost star catalog.

An aminostratigraphy for the British Quaternary based on Bithynia opercula

PubMed Central

Penkman, Kirsty E.H.; Preece, Richard C.; Bridgland, David R.; Keen, David H.; Meijer, Tom; Parfitt, Simon A.; White, Tom S.; Collins, Matthew J.

2013-01-01

Aminostratigraphies of Quaternary non-marine deposits in Europe have been previously based on the racemization of a single amino acid in aragonitic shells from land and freshwater molluscs. The value of analysing multiple amino acids from the opercula of the freshwater gastropod Bithynia, which are composed of calcite, has been demonstrated. The protocol used for the isolation of intra-crystalline proteins from shells has been applied to these calcitic opercula, which have been shown to more closely approximate a closed system for indigenous protein residues. Original amino acids are even preserved in bithyniid opercula from the Eocene, showing persistence of indigenous organics for over 30 million years. Geochronological data from opercula are superior to those from shells in two respects: first, in showing less natural variability, and second, in the far better preservation of the intra-crystalline proteins, possibly resulting from the greater stability of calcite. These features allow greater temporal resolution and an extension of the dating range beyond the early Middle Pleistocene. Here we provide full details of the analyses for 480 samples from 100 horizons (75 sites), ranging from Late Pliocene to modern. These show that the dating technique is applicable to the entire Quaternary. Data are provided from all the stratotypes from British stages to have yielded opercula, which are shown to be clearly separable using this revised method. Further checks on the data are provided by reference to other type-sites for different stages (including some not formally defined). Additional tests are provided by sites with independent geochronology, or which can be associated with a terrace stratigraphy or biostratigraphy. This new aminostratigraphy for the non-marine Quaternary deposits of southern Britain provides a framework for understanding the regional geological and archaeological record. Comparison with reference to sites yielding independent geochronology, in combination with other lines of evidence, allows tentative correlation with the marine oxygen isotope record. PMID:23396683

Low-resolution Australasian palaeoclimate records of the last 2000 years

NASA Astrophysics Data System (ADS)

Dixon, Bronwyn C.; Tyler, Jonathan J.; Lorrey, Andrew M.; Goodwin, Ian D.; Gergis, Joëlle; Drysdale, Russell N.

2017-10-01

Non-annually resolved palaeoclimate records in the Australasian region were compiled to facilitate investigations of decadal to centennial climate variability over the past 2000 years. A total of 675 lake and wetland, geomorphic, marine, and speleothem records were identified. The majority of records are located near population centres in southeast Australia, in New Zealand, and across the maritime continent, and there are few records from the arid regions of central and western Australia. Each record was assessed against a set of a priori criteria based on temporal resolution, record length, dating methods, and confidence in the proxy-climate relationship over the Common Era. A subset of 22 records met the criteria and were endorsed for subsequent analyses. Chronological uncertainty was the primary reason why records did not meet the selection criteria. New chronologies based on Bayesian techniques were constructed for the high-quality subset to ensure a consistent approach to age modelling and quantification of age uncertainties. The primary reasons for differences between published and reconstructed age-depth models were the consideration of the non-singular distribution of ages in calibrated 14C dates and the use of estimated autocorrelation between sampled depths as a constraint for changes in accumulation rate. Existing proxies and reconstruction techniques that successfully capture climate variability in the region show potential to address spatial gaps and expand the range of climate variables covering the last 2000 years in the Australasian region. Future palaeoclimate research and records in Australasia could be greatly improved through three main actions: (i) greater data availability through the public archiving of published records; (ii) thorough characterisation of proxy-climate relationships through site monitoring and climate sensitivity tests; and (iii) improvement of chronologies through core-top dating, inclusion of tephra layers where possible, and increased date density during the Common Era.

"Ice out": the contribution of citizen scientists to our understanding of climate change

NASA Astrophysics Data System (ADS)

Patterson, R. Timothy; Swindles, Graeme T.

2016-04-01

Long-term trends in spring 'ice out' dates (1836-2013) for twelve lakes in Maine, New Brunswick and New Hampshire, in eastern North America reveal a remarkable coherency across the region (rs=0.462-0.933, p<0.01). These data have been compiled since the early 19th century, primarily by amateur citizen scientists, for a variety of purposes, including determining fishing seasons, estimating the spring opening of ferry boat routes, community contests, and general curiosity. Ice out dates correlate closely with late-winter/early-spring, March-April (MA), instrumental temperature records from across the region (rs=0.488-0.816, p<0.01). This correlation permits use of ice out dates as a proxy to extend the shorter MA instrumental record (1876-2013). Mean ice out dates trended progressively earlier during the recovery from the Little Ice Age through to the 1940s, and gradually became later again through to the late 1970s, when ice out dates had returned to values more typical of the late nineteenth century. Post-1970's ice out dates resumed trending toward earlier dates, with the twenty-first century being characterized by the earliest ice out dates on record. Spectral and wavelet time series analysis indicate that ice out is influenced by several teleconnections including the Quasi-biennial Oscillation, El Niño-Southern Oscillation, North Atlantic Oscillation, Atlantic Multidecadal Oscillation as well as a significant correlation between inland lake records and the Arctic Oscillation. The relative influence of these teleconnections is variable with notable shifts occurring after ~1870, ~1925, and ~1980-2000. The intermittent expression of these cycles in the ice out and MA instrumental record is not only influenced by absolute changes in the intensity of the various teleconnections and other climate drivers, but by phase interference between teleconnections, which periodically damps the various signals.

24 CFR 1710.21 - Effective dates.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 24 Housing and Urban Development 5 2011-04-01 2011-04-01 false Effective dates. 1710.21 Section... Effective dates. (a) General. The effective date of an initial, consolidated or amended Statement of Record... developer in writing prior to such 30th day that: (1) The effective date has been suspended in accordance...

75 FR 37410 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-29

[email protected] . All written inquiries should contain the full name, Social Security Number (SSN....army.mil . All written inquiries should contain the full name, Social Security Number (SSN), date of...), DD Form 1821 (Contractor Crewmember Record); name, Social Security Number (SSN), home address, date...

75 FR 61135 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-04

... Business Innovative Research (SBIR) Organizations/Groups. CATEGORIES OF RECORDS IN THE SYSTEM: Information... title, by any of the following methods: * Federal Rulemaking Portal: http://www.regulations.gov . Follow...,'' dated February 8, 1996 (February 20, 1996; 61 FR 6427). Dated: September 29, 2010. Mitchell S. Bryman...

Relational machine learning for electronic health record-driven phenotyping.

PubMed

Peissig, Peggy L; Santos Costa, Vitor; Caldwell, Michael D; Rottscheit, Carla; Berg, Richard L; Mendonca, Eneida A; Page, David

2014-12-01

Electronic health records (EHR) offer medical and pharmacogenomics research unprecedented opportunities to identify and classify patients at risk. EHRs are collections of highly inter-dependent records that include biological, anatomical, physiological, and behavioral observations. They comprise a patient's clinical phenome, where each patient has thousands of date-stamped records distributed across many relational tables. Development of EHR computer-based phenotyping algorithms require time and medical insight from clinical experts, who most often can only review a small patient subset representative of the total EHR records, to identify phenotype features. In this research we evaluate whether relational machine learning (ML) using inductive logic programming (ILP) can contribute to addressing these issues as a viable approach for EHR-based phenotyping. Two relational learning ILP approaches and three well-known WEKA (Waikato Environment for Knowledge Analysis) implementations of non-relational approaches (PART, J48, and JRIP) were used to develop models for nine phenotypes. International Classification of Diseases, Ninth Revision (ICD-9) coded EHR data were used to select training cohorts for the development of each phenotypic model. Accuracy, precision, recall, F-Measure, and Area Under the Receiver Operating Characteristic (AUROC) curve statistics were measured for each phenotypic model based on independent manually verified test cohorts. A two-sided binomial distribution test (sign test) compared the five ML approaches across phenotypes for statistical significance. We developed an approach to automatically label training examples using ICD-9 diagnosis codes for the ML approaches being evaluated. Nine phenotypic models for each ML approach were evaluated, resulting in better overall model performance in AUROC using ILP when compared to PART (p=0.039), J48 (p=0.003) and JRIP (p=0.003). ILP has the potential to improve phenotyping by independently delivering clinically expert interpretable rules for phenotype definitions, or intuitive phenotypes to assist experts. Relational learning using ILP offers a viable approach to EHR-driven phenotyping. Copyright © 2014 Elsevier Inc. All rights reserved.

Evidence of fatal skeletal injuries on Malapa Hominins 1 and 2

PubMed Central

L’Abbé, Ericka N.; Symes, Steven A.; Pokines, James T.; Cabo, Luis L.; Stull, Kyra E.; Kuo, Sharon; Raymond, David E.; Randolph-Quinney, Patrick S.; Berger, Lee R.

2015-01-01

Malapa is one of the richest early hominin sites in Africa and the discovery site of the hominin species, Australopithecus sediba. The holotype and paratype (Malapa Hominin 1 and 2, or MH1 and MH2, respectively) skeletons are among the most complete in the early hominin record. Dating to approximately two million years BP, MH1 and MH2 are hypothesized to have fallen into a natural pit trap. All fractures evident on MH1 and MH2 skeletons were evaluated and separated based on wet and dry bone fracture morphology/characteristics. Most observed fractures are post-depositional, but those in the right upper limb of the adult hominin strongly indicate active resistance to an impact, while those in the juvenile hominin mandible are consistent with a blow to the face. The presence of skeletal trauma independently supports the falling hypothesis and supplies the first evidence for the manner of death of an australopith in the fossil record that is not attributed to predation or natural death. PMID:26459912

Ultraviolet interstellar lines in the spectrum of Pi Scorpii recorded at 2 kilometers per second resolution

NASA Technical Reports Server (NTRS)

Joseph, Charles L.; Jenkins, Edward B.

1991-01-01

A spectrum of Pi Scorpii has been recorded from 1003 to 1172 A with a maximum SNR of about 20 and a velocity resolution of 2.4 km/s. Three types of H I as well as two discrete H II regions are distinguished in velocity space, allowing independent analyses of physical conditions and abundances for the individual gas components. A direct evaluation of optical depths and column densities across the absorption features is applied for the first time to the dominant ionization stage of Fe, Si, and P. Based on an analysis of the spectrum, it is concluded that all of the Ti II absorption seen toward Pi Sco arises in the warm, neutral intercloud medium while the other elements have their maximum absorption associated with cold clouds. A conservative value of log delta less than -3.4 is inferred for the Ti depletion in the cold clouds, a value more extreme than any integrated, line-of-sight measurement made to date.

Ice-volume-forced erosion of the Chinese Loess Plateau global Quaternary stratotype site.

PubMed

Stevens, T; Buylaert, J-P; Thiel, C; Újvári, G; Yi, S; Murray, A S; Frechen, M; Lu, H

2018-03-07

The International Commission on Stratigraphy (ICS) utilises benchmark chronostratigraphies to divide geologic time. The reliability of these records is fundamental to understand past global change. Here we use the most detailed luminescence dating age model yet published to show that the ICS chronology for the Quaternary terrestrial type section at Jingbian, desert marginal Chinese Loess Plateau, is inaccurate. There are large hiatuses and depositional changes expressed across a dynamic gully landform at the site, which demonstrates rapid environmental shifts at the East Asian desert margin. We propose a new independent age model and reconstruct monsoon climate and desert expansion/contraction for the last ~250 ka. Our record demonstrates the dominant influence of ice volume on desert expansion, dust dynamics and sediment preservation, and further shows that East Asian Summer Monsoon (EASM) variation closely matches that of ice volume, but lags insolation by ~5 ka. These observations show that the EASM at the monsoon margin does not respond directly to precessional forcing.

CNET OPN Automated Budget System (COABS)

DTIC Science & Technology

1981-03-01

Automated Budget System. Please enter Today’s Date (mm/dd/yy): // Enter the date required in a series of three two digit numbers. Zero fill fields...containing a single digit . After the date is entered the following four prompts will appear as the RETURN key is touched: Please enter the address of...of item is a four digit number that makes this record unique from all other records of the same functional commander, equipment type, and fiscal year

17 CFR 16.01 - Trading volume, open contracts, prices, and critical dates.

Code of Federal Regulations, 2012 CFR

2012-04-01

... TRADING COMMISSION REPORTS BY REPORTING MARKETS § 16.01 Trading volume, open contracts, prices, and critical dates. (a) Trading volume and open contracts. Each reporting market shall record for each business... total volume of trading. (b) Prices. Each reporting market shall record the following information...

Calibration of high frequency pollen sequences and tree-ring records

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wigand, P.E.; Rose, M.R.

This paper examines two radiocarbon dated paleoenvironmental records from southern Nevada for the possibility of correlating high-frequency pollen samples with nearby long-term tree-ring sequences. Variable deposition rate are discussed. Radiocarbon dating control of the pollen cores, as well as closer interval sampling is presented.

78 FR 79457 - Privacy Act of 1974; Notice of an Updated System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-30

...] Privacy Act of 1974; Notice of an Updated System of Records AGENCY: General Services Administration. ACTION: Notice. SUMMARY: The U.S. General Services Administration (GSA) reviewed its Privacy Act systems... legal or regulatory authority. DATES: Effective date: January 29, 2014. FOR FURTHER INFORMATION CONTACT...

77 FR 8947 - Privacy Act of 1974, as Amended; Systems of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-02-15

... future delinquencies is compatible with and furthers the purposes for which FMS maintains its records... who are ineligible for Federally funded programs until the delinquency is resolved, and for... account number, the date the debt originated, the amount of the delinquency or default, the date of...

7 CFR 283.31 - Review of the record.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 7 Agriculture 4 2011-01-01 2011-01-01 false Review of the record. 283.31 Section 283.31 Agriculture Regulations of the Department of Agriculture (Continued) FOOD AND NUTRITION SERVICE, DEPARTMENT OF... addressed and shall specify the date(s) by which such information or briefing must be provided. Upon receipt...

22 CFR 66.5 - Availability of NED records.

Code of Federal Regulations, 2012 CFR

2012-04-01

..., dates, titles, authors, and other information that may help identify the records. The first paragraph of... requester setting forth the reasons for such extension and the date on which a determination can be expected... fails to comply within the applicable time limit provisions of this section. When no determination can...

22 CFR 66.5 - Availability of NED records.

Code of Federal Regulations, 2014 CFR

2014-04-01

..., dates, titles, authors, and other information that may help identify the records. The first paragraph of... requester setting forth the reasons for such extension and the date on which a determination can be expected... fails to comply within the applicable time limit provisions of this section. When no determination can...

22 CFR 66.5 - Availability of NED records.

Code of Federal Regulations, 2013 CFR

2013-04-01

..., dates, titles, authors, and other information that may help identify the records. The first paragraph of... requester setting forth the reasons for such extension and the date on which a determination can be expected... fails to comply within the applicable time limit provisions of this section. When no determination can...

22 CFR 66.5 - Availability of NED records.

Code of Federal Regulations, 2011 CFR

2011-04-01

..., dates, titles, authors, and other information that may help identify the records. The first paragraph of... requester setting forth the reasons for such extension and the date on which a determination can be expected... fails to comply within the applicable time limit provisions of this section. When no determination can...

62. McMILLAN DAM Photographic copy of construction drawing dated ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

62. McMILLAN DAM - Photographic copy of construction drawing dated April 2, 1917 (from Record Group 115, Box 17, Denver Branch of the National Archives, Denver). RECORD DRAWING OF RAILROAD DIKE - Carlsbad Irrigation District, McMillan Dam, On Pecos River, 13 miles North of Carlsbad, Carlsbad, Eddy County, NM

75 FR 48657 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-08-11

... position, organization of assignment, date assigned, estimated departure date, job specialty, and relevant..., organization of assignment, date assigned, estimated departure date, job specialty, and relevant career data...-to-know. Retention and disposal: Information is retained until individual transfers or is separated...

Catastrophic valley fills record large Himalayan earthquakes, Pokhara, Nepal

NASA Astrophysics Data System (ADS)

Stolle, Amelie; Bernhardt, Anne; Schwanghart, Wolfgang; Hoelzmann, Philipp; Adhikari, Basanta R.; Fort, Monique; Korup, Oliver

2017-12-01

Uncertain timing and magnitudes of past mega-earthquakes continue to confound seismic risk appraisals in the Himalayas. Telltale traces of surface ruptures are rare, while fault trenches document several events at best, so that additional proxies of strong ground motion are needed to complement the paleoseismological record. We study Nepal's Pokhara basin, which has the largest and most extensively dated archive of earthquake-triggered valley fills in the Himalayas. These sediments form a 148-km2 fan that issues from the steep Seti Khola gorge in the Annapurna Massif, invading and plugging 15 tributary valleys with tens of meters of debris, and impounding several lakes. Nearly a dozen new radiocarbon ages corroborate at least three episodes of catastrophic sedimentation on the fan between ∼700 and ∼1700 AD, coinciding with great earthquakes in ∼1100, 1255, and 1344 AD, and emplacing roughly >5 km3 of debris that forms the Pokhara Formation. We offer a first systematic sedimentological study of this formation, revealing four lithofacies characterized by thick sequences of mid-fan fluvial conglomerates, debris-flow beds, and fan-marginal slackwater deposits. New geochemical provenance analyses reveal that these upstream dipping deposits of Higher Himalayan origin contain lenses of locally derived river clasts that mark time gaps between at least three major sediment pulses that buried different parts of the fan. The spatial pattern of 14C dates across the fan and the provenance data are key to distinguishing these individual sediment pulses, as these are not evident from their sedimentology alone. Our study demonstrates how geomorphic and sedimentary evidence of catastrophic valley infill can help to independently verify and augment paleoseismological fault-trench records of great Himalayan earthquakes, while offering unparalleled insights into their long-term geomorphic impacts on major drainage basins.

Fossil bryophytes as recorders of ancient CO2 levels: Experimental evidence and a Cretaceous case study

NASA Astrophysics Data System (ADS)

Fletcher, Benjamin J.; Beerling, David J.; Brentnall, Stuart J.; Royer, Dana L.

2005-09-01

Biological and geochemical CO2 proxies provide critical constraints on understanding the role of atmospheric CO2 in driving climate change during Earth history. As no single existing CO2 proxy is without its limitations, there is a clear need for new approaches to reconstructing past CO2 concentrations. Here we develop a new pre-Quaternary CO2 proxy based on the stable carbon isotope composition (δ13C) of astomatous land plants. In a series of CO2-controlled laboratory experiments, we show that the carbon isotope discrimination (Δ13C) of a range of bryophyte (liverwort and moss) species increases with atmospheric CO2 across the range 375 to 6000 ppm. Separate experiments establish that variations in growth temperature, water content and substrate type have minor impacts on the Δ13C of liverworts but not mosses, indicating the greater potential of liverworts to faithfully record past variations in CO2. A mechanistic model for calculating past CO2 concentrations from bryophyte Δ13C (White et al., 1994) is extended and calibrated using our experimental results. The potential for fossil liverworts to record past CO2 changes is investigated by analyzing the δ13C of specimens collected from Alexander Island, Antarctica dating to the "greenhouse" world of the mid-Cretaceous. Our analysis and isotopic model yield mid-Cretaceous CO2 concentrations of 1000-1400 ppm, in general agreement with independent proxy data and long-term carbon cycle models. The exceptionally long evolutionary history of bryophytes offers the possibility of reconstructing CO2 concentrations back to the mid-Ordovician, pre-dating all currently used quantitative CO2 proxies.

38 CFR 21.7131 - Commencing dates.

Code of Federal Regulations, 2012 CFR

2012-07-01

...) VOCATIONAL REHABILITATION AND EDUCATION All Volunteer Force Educational Assistance Program (Montgomery GI... standard college degree. (1) When the student enrolls in a course offered by independent study, the commencing date of the award or increased award of educational assistance will be the date the student began...

38 CFR 21.7131 - Commencing dates.

Code of Federal Regulations, 2013 CFR

2013-07-01

...) VOCATIONAL REHABILITATION AND EDUCATION All Volunteer Force Educational Assistance Program (Montgomery GI... standard college degree. (1) When the student enrolls in a course offered by independent study, the commencing date of the award or increased award of educational assistance will be the date the student began...

38 CFR 21.7131 - Commencing dates.

Code of Federal Regulations, 2011 CFR

2011-07-01

...) VOCATIONAL REHABILITATION AND EDUCATION All Volunteer Force Educational Assistance Program (Montgomery GI... standard college degree. (1) When the student enrolls in a course offered by independent study, the commencing date of the award or increased award of educational assistance will be the date the student began...

38 CFR 21.7131 - Commencing dates.

Code of Federal Regulations, 2014 CFR

2014-07-01

...) VOCATIONAL REHABILITATION AND EDUCATION All Volunteer Force Educational Assistance Program (Montgomery GI... standard college degree. (1) When the student enrolls in a course offered by independent study, the commencing date of the award or increased award of educational assistance will be the date the student began...

Can the date of Moses' death be determined astronomically?

NASA Astrophysics Data System (ADS)

Manetsch, T. J.; Osborn, W. H.

2011-08-01

There is an early Jewish tradition that the sun darkened on the day of Moses' death. The possibility of this being a reference to a solar eclipse has been investigated. If such were to be the case, identification of the eclipse could be used to derive dates for events recorded in the Bible. A likely candidate eclipse has been found that fits well with Hebrew calendar dates and timelines that are recorded in the biblical books of Deuteronomy and Joshua.

Post-glacial Paleo-oceanographic and Paleo-climatic Conditions and Linkages Along the West Coast of Canada

NASA Astrophysics Data System (ADS)

Dallimore, A.; Enkin, R. J.; McKechnie, I.

2006-12-01

Along the west coast of Canada, our continuing studies of annually laminated marine sediments in anoxic fjords illustrate the changing environment as glaciers retreated from this area about 12 ka y BP. New data from mid-coastal British Columbia expands our knowledge of the interplay between climate and ocean dynamics in the northeastern Pacific Ocean, and defines the evolution of modern climate conditions as ice receded from the coast, followed by the establishment of modern oceanographic and climatic conditions about 6,000 ky BP. The Late Pleistocene and Holocene record also marks dramatic changes in sea level, climate, coastal oceanographic dynamics and glacial sedimentary source and transport, with implications for the possibility of early human migration routes and glacial refugia. Changes in pre-historical aboriginal settlement sites and food sources also give indications of a dynamic Holocene land and seascape as modern conditions became established. Excellent chronological control is provided by complementary yet independent dating methods including radiocarbon dates on both plants and shells, identification of the Mazama Ash, varve counting and paleomagnetic/paleosecular variation correlations.

Visual-Stratigraphic Dating of the GISP2 Ice Core: Basis, Reproducibility, and Application

NASA Technical Reports Server (NTRS)

Alley, R. B.; Shuman, C. A.; Meese, D. A.; Gow, A. J.; Taylor, K. C.; Cuffey, K. M.; Fitzpatrick, J. J.; Grootes, P. M.; Zielinski, G. A.; Ram, M.;

Visual-stratigraphic dating of the GISP2 ice core: Basis, reproducibility, and application

NASA Astrophysics Data System (ADS)

Alley, R. B.; Shuman, C. A.; Meese, D. A.; Gow, A. J.; Taylor, K. C.; Cuffey, K. M.; Fitzpatrick, J. J.; Grootes, P. M.; Zielinski, G. A.; Ram, M.; Spinelli, G.; Elder, B.

1997-11-01

Annual layers are visible in the Greenland Ice Sheet Project 2 ice core from central Greenland, allowing rapid dating of the core. Changes in bubble and grain structure caused by near-surface, primarily summertime formation of hoar complexes provide the main visible annual marker in the Holocene, and changes in "cloudiness" of the ice correlated with dustiness mark Wisconsinan annual cycles; both markers are evident and have been intercalibrated in early Holocene ice. Layer counts are reproducible between different workers and for one worker at different times, with 1% error over century-length times in the Holocene. Reproducibility is typically 5% in Wisconsinan ice-age ice and decreases with increasing age and depth. Cumulative ages from visible stratigraphy are not significantly different from independent ages of prominent events for ice older than the historical record and younger than approximately 50,000 years. Visible observations are not greatly degraded by "brittle ice" or many other core-quality problems, allowing construction of long, consistently sampled time series. High accuracy requires careful study of the core by dedicated observers.

The Asian Monsoon Links to Solar Changes and the Intertropical Convergence Zone and 1300 Years of Chinese Human Susceptibility

NASA Astrophysics Data System (ADS)

Yu, E.; Hsu, Y.; Lee, T.

2011-12-01

Here we present a new paleoclimatic record from a sediment core recovered in Lake Liyutan in central Taiwan over the last 1300 years. The age model is based on 2 AMS 14C dates. Adjustments of age were using the well-dated records from a near by lake sediment core. The Lake Liyutan sediments record the strength of the summer monsoon in two independent ways: (1) the magnetic parameters (ARM/χ, ARM, anhysteresis remenent magnetization; χ, Volume susceptibility) and magnetic susceptibility, and (2) total organic carbon content, organic C/N elemental ratio and δ13Corg of the sediments as a result of changes in different organic matter origins and terrigenous detritus dilution due to precipitation. All the proxy records are 10 to 30- year-resolution. Weaker summer monsoon phases reconstructed from the Lake Liyutan correlate with higher δ18O at Dongge and Hulu caves, which indicates lower summer precipitation rates. Moreover, it is interesting to find that the strong winter monsoon from the Lake Huguang Maar records show a synchronous relationship with weaker summer monsoon from the caves and the Lake Liyutan. From the coincidence in timing, these records were explained by migrations in the intertropical convergence zone. In addition, the weak Asian summer monsoon in the Lake Liyutan corresponds with lowering Northern Hemisphere summer insolation recorded at Dongge cave. Climate variations influenced the agricultural productivity, health risk, and conflict level of preindustrial societies. We note that, on the basis of our new lake record, major changes in Chinese dynasties occurred when the summer monsoon strength was weaker and rainfall was reduced. The Tang dynasty began to ebb in the eighth century, and it fully collapsed in AD907, then the dynastic transitions to the Five Dynasties and Ten Kingdoms period. The weak summer monsoon and reduced rainfall was indicated in the coincidence in timing of the sediment core LYT-3A from Lake Liyutan during 1100 - 1000BP. In the context of major events in the cultural history of China were fruitfully proven from the Lake Huguang Maar paleoclimate records and the Hulu cave records as well. In Taiwan, archaeological research found that early human settlement was the site of Tungpu Hamlet 1 (940~1171 BP) in the central Taiwan and Shihsan culture (500~1800 years BP) in the northern Taiwan during the period of time. Tungpu is currently one of only two surviving settlements of Bunun peoples still located within the territory.

Synchrony of Pandemics, Fire Reduction, and Reforestation in the Tropical Americas With Atmospheric Carbon Dioxide Changes During European Conquest

NASA Astrophysics Data System (ADS)

Nevle, R. J.; Bird, D. K.

2007-12-01

A new reconstruction of the biomass burning history of the tropical Americas is consistent with expanding fire use by Mesoamerican and Amazonian agriculturalists from 2000 to 500 years BP and a subsequent period of fire reduction due to indigenous demographic collapse. Our reconstruction synthesizes published data from stratigraphic charcoal accumulation records from lake and bog sediments and soil charcoal records, including soil charcoal obtained from archeological Amazonian Dark Earth sites. The charcoal data provide fire histories from over 40 localities and enable reconstruction of the Late Holocene regional biomass burning history of the tropical Americas. Synthesis of the stratigraphic charcoal records yields indexes of 1) the inter-site variability in charcoal accumulation; and 2) the mean rate of regional charcoal accumulation during 500-year increments since 3500 years BP. The age distribution of dated soil charcoal particles from non-archeological sites provides an independent measure of variation in regional charcoal accumulation; whereas the age distribution of soil charcoal dates from archeological sites records variation in charcoal accumulation related to anthropogenic biomass burning. The charcoal accumulation indexes derived from stratigraphic records begin to increase at ~2000 years BP, obtain maxima during the 500-year period just prior to European arrival, then decline to near-minimum values during the 500-year period subsequent to contact. Similarly, the age distribution of soil charcoal dated from non-archeological and archeological sites both indicate increases in charcoal accumulation from 2000 to 500 years BP followed by decline. We interpret the covariation between measures of charcoal accumulation derived from archeological and non-archeological sites as a consequence of the expansive influence of anthropogenic activity on the regional fire regime. The increase in regional charcoal accumulation apparent in the stratigraphic and soil charcoal records beginning at 2000 years BP correlates with expanding indigenous population, agriculture, and fire use in the tropical Americas. The rise in inter-site variability in charcoal accumulation after 2000 years BP is consistent with a demographic shift toward sedentary agrarian communities and localized increases in charcoal accumulation in densely populated centers. The declines in regional charcoal accumulation and inter-site variability after 500 years BP suggest a correlative cause related to reduction in anthropogenic biomass burning resulting from pandemic-driven population collapse. Published reconstructions of Pre-Columbian demography indicate that during European conquest, pandemics killed ~90% of the indigenous American population (~60 million), estimated to represent ~20% of the 16th century global population. Our predictive calculations suggest that fire reduction in the tropical Americas indicated in the charcoal record is associated with massive forest regeneration on ~1 x 106 km2 of land and sequestration of >10 Gt C into the terrestrial biosphere, which contributed to the ~2% global reduction in atmospheric CO2 levels and the 0.1‰ increase in δ13C of atmospheric CO2 from 1500 to 1700 A.D. recorded in Antarctic ice cores and tropical sponges.

Inferring extinction risks from sighting records.

PubMed

Thompson, C J; Lee, T E; Stone, L; McCarthy, M A; Burgman, M A

2013-12-07

Estimating the probability that a species is extinct based on historical sighting records is important when deciding how much effort and money to invest in conservation policies. The framework we offer is more general than others in the literature to date. Our formulation allows for definite and uncertain observations, and thus better accommodates the realities of sighting record quality. Typically, the probability of observing a species given it is extant/extinct is challenging to define, especially when the possibility of a false observation is included. As such, we assume that observation probabilities derive from a representative probability density function. We incorporate this randomness in two different ways ("quenched" versus "annealed") using a framework that is equivalent to a Bayes formulation. The two methods can lead to significantly different estimates for extinction. In the case of definite sightings only, we provide an explicit deterministic calculation (in which observation probabilities are point estimates). Furthermore, our formulation replicates previous work in certain limiting cases. In the case of uncertain sightings, we allow for the possibility of several independent observational types (specimen, photographs, etc.). The method is applied to the Caribbean monk seal, Monachus tropicalis (which has only definite sightings), and synthetic data, with uncertain sightings. © 2013 Elsevier Ltd. All rights reserved.

76 FR 23861 - Corporate Credit Unions

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-29

... statements, Financial statement audit, Generally accepted auditing standards, Independent public accountant... public accountant undermines the IPA's independence. The Board is delaying the effective date of this ERM... accepted auditing standards, Independent public accountant, Internal control, Internal control framework...

40 CFR 60.2740 - What records must I keep?

Code of Federal Regulations, 2010 CFR

2010-07-01

... (b)(1) through (6) of this section: (1) The CISWI unit charge dates, times, weights, and hourly... showing the names of the CISWI operators who have completed the operator training requirements under § 60... under § 60.2650 or § 60.2655. Records must include documentation of training, the dates of the initial...

75 FR 17978 - Privacy Act of 1974: Systems of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-08

.... DATES: The proposed changes will become effective May 18, 2010 unless further notice is given. The Commission will publish a new notice if the effective date is delayed to review comments or if changes are...: These records include, but are not limited to: employee name, address, phone number, Social Security...

Multi-Century Record of Anthropogenic Impacts on an Urbanized Mesotidal Estuary: Salem Sound, MA

EPA Science Inventory

Salem, MA, located north of Boston, has a rich, well-documented history dating back to settlement in 1626 CE, but the associated anthropogenic impacts on Salem Sound are poorly constrained. This project utilized dated sediment cores from the sound to assess the proxy record of an...

75 FR 47812 - Privacy Act of 1974; Report of a New System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-08-09

... authorized. Leveraging cutting-edge technologies such as fingerprint recognition and single sign-on...: Effective Date: The new system of records will be effective on the date of publication of this notice, with the exception of the routine uses, which will become effective on September 8, 2010. We may defer...

78 FR 39959 - Production of FHFA Records, Information, and Employee Testimony in Third-Party Legal Proceedings

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-03

... spending public time and money for private purposes. DATES: The effective date of this regulation is... agency employee's work schedule significantly, may involve the agency in issues unrelated to its... resources; (d) Production might assist or hinder employees in doing their work; (e) The records, information...

61. McMILLAN DAM Photographic copy of construction drawing dated ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

61. McMILLAN DAM - Photographic copy of construction drawing dated April 2, 1917 (from Record Group 115, Box 16, Denver Branch of the National Archives, Denver). RECORD DRAWING OF SPILLWAY NO. 2 - Carlsbad Irrigation District, McMillan Dam, On Pecos River, 13 miles North of Carlsbad, Carlsbad, Eddy County, NM

A 250,000-year climatic record from great basin vein calcite: Implications for Milankovitch theory

USGS Publications Warehouse

Winograd, I.J.; Szabo, B. J.; Coplen, T.B.; Riggs, A.C.

1988-01-01

A continuous record of oxygen-18 (??18O) variations in the continental hydrosphere during the middle-to-late Pleistocene has been obtained from a uranium-series dated calcitic vein in the southern Great Basin. The vein was deposited from ground water that moved through Devils Hole - an open fault zone at Ash Meadows, Nevada - between 50 and 310 ka (thousand years ago). The configuration of the ??18O versus time curve closely resembles the marine and Antarctic ice core (Vostok) ??18O curves; however, the U-Th dates indicate that the last interglacial stage (marine oxygen isotope stage 5) began before 147 ?? 3 ka, at least 17,000 years earlier than indicated by the marine ??18O record and 7,000 years earlier than indicated by the less well dated Antarctic ??18O record. This discrepancy and other differences in the timing of key climatic events suggest that the indirectly dated marine ??18O chronology may need revision and that orbital forcing may not be the principal cause of the Pleistocene ice ages.

11 CFR 100.19 - File, filed or filing (2 U.S.C. 434(a)).

Code of Federal Regulations, 2014 CFR

2014-01-01

... Time on the filing date, except that pre-election reports must have a postmark dated no later than 11:59 p.m. Eastern Standard/Daylight Time on the fifteenth day before the date of the election. (2... Standard/Daylight Time on the filing date. (d) 48-hour and 24-hour reports of independent expenditures—(1...

28 CFR 2.12 - Initial hearings: Setting presumptive release dates.

Code of Federal Regulations, 2010 CFR

2010-07-01

... under the Narcotic Addict Rehabilitation Act, 18 U.S.C. 4254, a presumptive parole date shall also be... prisoner's overall institutional record in determining whether the conditions of a presumptive parole date...

A written consent form dating back to 1524 in Bursa Ser'iye (Sharia Court) records and a proposal of a new start date for consent forms.

PubMed

Sayligil, Omur; Ozden, Hilmi

2014-01-01

Qadi registers are important documents for Ottoman medical history re.search. "Sharia Court Records (Ser'iyye Sicilleri)" are notebooks that include the records that qadis kept with regard to their decisions and deeds. These registers are the only authentic sources from which to acquire information on rural life, away from the center of the town, and to understand the daily practices of the Ottoman society. The objective of this study is to provide evidence for the fact that the concept of informed consent on medical interventions, and hence the written consent documents arranged between patients and physicians, dates back to older times in our history when compared to the Western world. A large number of Ser'iyye (Sharia Court) record originals have been surveyed. The consent form registered as A-40. 221a in Ser'iyye (Sharia Court) Records found in Bursa has been presented here as the earliest consent document found by the authors. Transcription of the original document has been performed and analyzed. The aforementioned consent form dates back to 26/Dhu al-Qi'dah/933 (August 24, 1524). The original version of the referenced consent document is the earliest consent document presented so far to the best of the authors' knowledge; it was found in Bursa Ser'iyye Records and evaluated accordingly. Based on the document, it is argued that the history of consent forms dates back about 500 years. Obtaining consent in scientific research from human beings was considered to have originated from the Nuremberg Code (1949). However, with this study, it has been shown that the concept of informed consent was already present in the Ottoman Period, during the 16th century, and that the original consent document dates back to 1524, pertaining to a surgical intervention.

Paleoclimate Reconstruction of Guangxi in SW China during the Past 2000-Year: Stalagmite Records from Two Caves

NASA Astrophysics Data System (ADS)

Lien, W. Y.; Li, H. C.; Mii, H. S.

2017-12-01

Paleoclimate reconstructions help us to understand the role of the East Asian Summer Monsoon (EASM) on local precipitation and controlling factor of EASM variability, and to improve our climatic prediction. This study presents two stalagmite records from Jinlun Cave (23.553oN, 108.265oE) and Yilingyan Cave (23.041oN, 108.297oE) which are only 60 km apart in Guangxi Province, China. The 35-cm long stalagmite JL12 from Jinlun Cave and 10-cm long stalagmite YLY12 from Yilingyan Cave reveal 1500-year and 2000-year continuous growth respectively based on AMS 14C dating. Data points of the AMS 14C dates with the least dead carbon fraction (DCF) are used to build up the age model. Although dead carbons influence the 14C dating results, it is a feasible dating method for the stalagmites as 230Th/U dating on both stalagmites was not successful due to low U contents. A total of 1586 samples from JL12 and 948 samples from YLY12 have been done for stable isotopes analyses to serve as paleoclimate proxies. Comparison of the d18O records with the local rainfall records and the dry-wetness historic records shows the stalagmite d18O records as a rainfall proxy. The JL12 d18O record resembles the YLY12 d18O record in general, though some differences exist, which confirms the d18O records representing the local climate. The relatively lighter (lower) d18O values of the JL12 and YLY12 records during the Medieval Warm Period (MWP, AD900-1200) indicate stronger EASM. In the first phase of Little Ice Age (LIA), from AD1300 to AD1560, the d18O fluctuate drastically and the average during this period was lower, while the d18O was higher in the second phase of Little Ice Age (AD1560-AD1760), exhibiting a drier and stable climate in the second phase. Furthermore, the DCF varies through the stalagmite records, ascending during the LIA, descending during the MWP, which informs dry condition during the LIA and a moist climate in the MWP. Spectral analysis of the high-resolution d18O records reveal decadal variability of the local climates and the EASM influence.

Pacific southwest United States Holocene summer paleoclimate inferred from sediment calcite oxygen isotopes (Lake Elsinore, CA)

NASA Astrophysics Data System (ADS)

Kirby, M.; Patterson, W. P.; Lachniet, M. S.; Anderson, M.; Noblet, J. A.

2017-12-01

Records of past climate inform on the natural range and mechanisms of climate change. In the arid Pacific southwest United States (pswUS), there exist a variety of Holocene records that infer past winter conditions (moisture and/or temperature). Holocene records of summer climate, however, are rare excepting short-lived (<500-1000 yrs) tree ring PDSIs and some pollen-inferred temperature reconstructions. As climate changes due to anthropogenic forcing, the severity of drought is expected to increase in the already water-stressed pswUS. Hot droughts are of considerable concern as summer temperatures rise. As a result, understanding how summer conditions changed in the past is critical to understanding future predictions under varied climate forcings. Here, we present a 9800 year delta-18O(calcite) record from Lake Elsinore, CA. This isotope record is interpreted to reflect late-spring to summer conditions, especially evaporation. Modern water isotope data support this interpretation. Our results reveal a three-part Holocene consisting of a highly evaporative early Holocene, a cooler mid-Holocene, and evaporative late Holocene. Coupled with an inferred winter wetness (run-off) record from Kirby et al. (2010), we estimate the severity of centennial scale Holocene dryness (i.e. dry winters plus hot summers = severe drought). The most severe droughts occur in the early Holocene, decline in the mid-Holocene, and return in the late Holocene. An independently dated isotope record from Lake Elsinore's littoral zone (Kirby et al. 2004) shows similar changes providing confidence in our longer record. Various forcing mechanisms are examined to explain the Elsinore summer record including insolation, Pacific SSTs, and trace gas radiative forcing.

Effect of religious rules on time of conception in Romania from 1905 to 2001.

PubMed

Herteliu, Claudiu; Ileanu, Bogdan Vasile; Ausloos, Marcel; Rotundo, Giulia

2015-09-01

Does the interdiction of sexual intercourse during Nativity and Lent fasting periods have any effect on when babies are conceived in Romania, in the 20th century? Based on date of birth records from the 20th century, Lent had a greater effect than the Nativity fast on conception within the Eastern Orthodox (ORTHD) population. Seasonality of births (and therefore of conception) is affected by geographical factors (latitude, weather, day-length). Other demographic, economic and socio-cultural characteristics (education, ethnicity, religion) have been proved to have an influence on conception. The analyzed data consists of registered daily birth records for a long time series (35 429 points = 365 (days/year) × 97 years + 24 leap years), with 24 947 061 births in Romania over the period 1905-2001. The data were obtained from the 1992 and 2002 censuses. Based on the reported birth date of each person, the estimated date of conception is computed using a standard gestation period of 280 days. The population was grouped into two categories (ORTHD and Non-Orthodox (NORTHD)) based on religious affiliation. Data analysis is performed in the same manner for both groups. Preliminary data analyses regarding seasonal variations in conception are considered first. Econometric models are applied and tested. The dependent variable in these models is the calculated date of conception, while the independent variables are: (i) religious affiliation; (ii) dates of Nativity and Lent fasts (the latter varies slightly from year to year); (iii) rural versus urban residence; (iv) length of day-light; (v) non-working days and (vi) trend. The models are tested for validity using analysis of variance while the regression coefficients are tested by the Student t-test. All models are statistically valid (P < 0.01); all regression coefficients for the ORTHD group are valid (P < 0.01, except for rurality between 1990 and 2001, with P < 0.05). The data analysis indicates smaller standard error bars on the parameters for the ORTHD group as compared with the NORTHD group. The conclusion is that religious affiliation is an important factor in date of conception. The data do not refer to all births during the analyzed period, but only to those persons still alive at the 1992 and 2002 censuses. The date of conception was estimated assuming 280 days for gestation, which is a medically accepted time interval but will undoubtedly vary. However, the primary independent variables (Lent and Nativity fast at 48 and 40 days, respectively) are long enough to overlap the uncertainty in the conception date following the sexual intercourse event. We also must assume that the religious affiliation of the parents is well defined, based on the information given by their offspring at census time, and is the same for both parents. Our findings are consistent with other studies, which show differences between religious groups on date of conception, although we reach different conclusions regarding the influence of weather on fertility in Romania. B.V.I., M.A. and G.R. have no competing interests to declare. There is no connection to the current paper, but C.H. declares that (i) he is currently conducting a research titled 'Chronic Diseases' Direct Costs within the Romanian Health System' funded by Local American Working Group; (ii) his wife is employed to a Romanian company (A&D Pharma) that does business in the pharmaceutical sector. This paper is a part of G.R. and M.A. scientific activities in COST Action TD1210. This work by C.H. was co-financed by the European Social Fund through project number POSDRU/1.5/S/59184. © The Author 2015. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Numeric and Relative Luminescence Dating of Volcanic Eruptions in the West Eifel Volcanic Field, Germany

NASA Astrophysics Data System (ADS)

Schmidt, C.; Schaarschmidt, M.; Kolb, T.; Richter, D.; Zöller, L.

2016-12-01

Accurate and precise dating of Holocene and Late Pleistocene volcanic eruptions is important for hazard analysis but still poses a major challenge using existing methods such as the 40Ar/39Ar or 14C techniques. Although luminescence methods are principally suitable for dating the last heating event of quartz and feldspar, working with volcanogenic materials (e.g., basalt or basanite) encounters methodological difficulties, of which anomalous fading is the most serious one. Here, we report on luminescence ages of quartz and polymineral fine grains extracted from volcanically heated native rock in contact with lava and from xenoliths embedded in basanitic scoria from the West Eifel Volcanic Field (WEVF). Combined luminescence methods (red thermoluminescence, optically stimulated and post-infrared infrared stimulated luminescence) provide significantly refined age estimates for the two investigated eruption sites, compared to independent age control. While the last volcanic activity at the Wartgesberg cinder cones took place 33.6 ± 0.4 ka ago, the Facher Höhe scoria cone is substantially younger than previously assumed (15.5 ± 0.5 ka) and represents a formerly undetected phase of young volcanism. Although not appropriate for numeric dating, the luminescence sensitivity of basalt appears to increase with eruptional age. This observation could be employed as a tool to establish a relative eruption chronology of a particular volcanic area. The WEVF, featuring a comparatively homogenous MgO-rich lava composition with many dated eruptions, represents a favorable natural laboratory to test this approach. First results of this attempt to complete the Eifel volcanic record and to chronologically assess previously undated eruptions will be presented in this contribution.

Model for forecasting Olea europaea L. airborne pollen in South-West Andalusia, Spain

NASA Astrophysics Data System (ADS)

Galán, C.; Cariñanos, Paloma; García-Mozo, Herminia; Alcázar, Purificación; Domínguez-Vilches, Eugenio

Data on predicted average and maximum airborne pollen concentrations and the dates on which these maximum values are expected are of undoubted value to allergists and allergy sufferers, as well as to agronomists. This paper reports on the development of predictive models for calculating total annual pollen output, on the basis of pollen and weather data compiled over the last 19 years (1982-2000) for Córdoba (Spain). Models were tested in order to predict the 2000 pollen season; in addition, and in view of the heavy rainfall recorded in spring 2000, the 1982-1998 data set was used to test the model for 1999. The results of the multiple regression analysis show that the variables exerting the greatest influence on the pollen index were rainfall in March and temperatures over the months prior to the flowering period. For prediction of maximum values and dates on which these values might be expected, the start of the pollen season was used as an additional independent variable. Temperature proved the best variable for this prediction. Results improved when the 5-day moving average was taken into account. Testing of the predictive model for 1999 and 2000 yielded fairly similar results. In both cases, the difference between expected and observed pollen data was no greater than 10%. However, significant differences were recorded between forecast and expected maximum and minimum values, owing to the influence of rainfall during the flowering period.

17 CFR 240.10b-17 - Untimely announcements of record dates.

Code of Federal Regulations, 2010 CFR

2010-04-01

... distribution and if that security is a right or a warrant, the subscription price, (e) In any other property... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Untimely announcements of record dates. 240.10b-17 Section 240.10b-17 Commodity and Securities Exchanges SECURITIES AND EXCHANGE...

22 CFR 42.55 - Reports on numbers and priority dates of applications on record.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Reports on numbers and priority dates of applications on record. 42.55 Section 42.55 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF... subject to the numerical limitations prescribed in INA 201, 202, and 203 whose immigrant visa applications...

22 CFR 42.55 - Reports on numbers and priority dates of applications on record.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Reports on numbers and priority dates of applications on record. 42.55 Section 42.55 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF... subject to the numerical limitations prescribed in INA 201, 202, and 203 whose immigrant visa applications...

22 CFR 42.55 - Reports on numbers and priority dates of applications on record.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 22 Foreign Relations 1 2012-04-01 2012-04-01 false Reports on numbers and priority dates of applications on record. 42.55 Section 42.55 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF... subject to the numerical limitations prescribed in INA 201, 202, and 203 whose immigrant visa applications...

22 CFR 42.55 - Reports on numbers and priority dates of applications on record.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Reports on numbers and priority dates of applications on record. 42.55 Section 42.55 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF... subject to the numerical limitations prescribed in INA 201, 202, and 203 whose immigrant visa applications...

22 CFR 42.55 - Reports on numbers and priority dates of applications on record.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Reports on numbers and priority dates of applications on record. 42.55 Section 42.55 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF... subject to the numerical limitations prescribed in INA 201, 202, and 203 whose immigrant visa applications...

76 FR 30182 - Notice of Submission of Proposed Information Collection to OMB Section 5(h) Homeownership Program...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-24

... Its Proposed Use: Public Housing Agencies (PHAs) maintain sales and financial records of their plan... comments on the subject proposal. Public Housing Agencies (PHAs) maintain sales and financial records of their plan. Residents may apply to PHAs to purchase units. DATES: Comments Due Date: June 23, 2011...

Financial Audit: Congressional Award Foundation’s Fiscal Year 2000 and 1999 Financial Statements

DTIC Science & Technology

2001-05-01

organizations. Assets and services contributed to the Foundation are recorded in the accounting records at fair value as of the date of the...records as contributions revenue amounts received in the form of cash, promises or pledges to give, and the fair value of certain contributed services and...or, as described in note 2A, at fair value at the date of contribution. Fixed assets such as office furniture valued in excess of $500 are

28 CFR 700.31 - Exemption of the Office of Independent Counsel's systems of records-limited access.

Code of Federal Regulations, 2014 CFR

2014-07-01

...) (5) and (8); (f); and (g): (1) General Files System of the Office of Independent Counsel (OIC/001... Counsel's systems of records-limited access. 700.31 Section 700.31 Judicial Administration OFFICE OF... Exemption of the Office of Independent Counsel's Systems of Records Under the Privacy Act § 700.31 Exemption...

28 CFR 700.31 - Exemption of the Office of Independent Counsel's systems of records-limited access.

Code of Federal Regulations, 2012 CFR

2012-07-01

...) (5) and (8); (f); and (g): (1) General Files System of the Office of Independent Counsel (OIC/001... Counsel's systems of records-limited access. 700.31 Section 700.31 Judicial Administration OFFICE OF... Exemption of the Office of Independent Counsel's Systems of Records Under the Privacy Act § 700.31 Exemption...

28 CFR 700.31 - Exemption of the Office of Independent Counsel's systems of records-limited access.

Code of Federal Regulations, 2013 CFR

2013-07-01

...) (5) and (8); (f); and (g): (1) General Files System of the Office of Independent Counsel (OIC/001... Counsel's systems of records-limited access. 700.31 Section 700.31 Judicial Administration OFFICE OF... Exemption of the Office of Independent Counsel's Systems of Records Under the Privacy Act § 700.31 Exemption...

28 CFR 700.31 - Exemption of the Office of Independent Counsel's systems of records-limited access.

Code of Federal Regulations, 2011 CFR

2011-07-01

...) (5) and (8); (f); and (g): (1) General Files System of the Office of Independent Counsel (OIC/001... Counsel's systems of records-limited access. 700.31 Section 700.31 Judicial Administration OFFICE OF... Exemption of the Office of Independent Counsel's Systems of Records Under the Privacy Act § 700.31 Exemption...

Anthropogenic contributions to atmospheric Hg, Pb and As accumulation recorded by peat cores from southern Greenland and Denmark dated using the 14C "bomb pulse curve"

NASA Astrophysics Data System (ADS)

Shotyk, W.; Goodsite, M. E.; Roos-Barraclough, F.; Frei, R.; Heinemeier, J.; Asmund, G.; Lohse, C.; Hansen, T. S.

2003-11-01

Mercury concentrations are clearly elevated in the surface and sub-surface layers of peat cores collected from a minerotrophic ("groundwater-fed") fen in southern Greenland (GL) and an ombrotrophic ("rainwater-fed") bog in Denmark (DK). Using 14C to precisely date samples since ca. AD 1950 using the "atmospheric bomb pulse," the chronology of Hg accumulation in GL is remarkably similar to the bog in DK where Hg was supplied only by atmospheric deposition: this suggests not only that Hg has been supplied to the surface layers of the minerotrophic core (GL) primarily by atmospheric inputs, but also that the peat cores have preserved a consistent record of the changing rates of atmospheric Hg accumulation. The lowest Hg fluxes in the GL core (0.3 to 0.5 μg/m 2/yr) were found in peats dating from AD 550 to AD 975, compared to the maximum of 164 μg/m 2/yr in AD 1953. Atmospheric Hg accumulation rates have since declined, with the value for 1995 (14 μg/m 2/yr) comparable to the value for 1995 obtained by published studies of atmospheric transport modelling (12 μg/m 2/yr). The greatest rates of atmospheric Hg accumulation in the DK core are also found in the sample dating from AD 1953 and are comparable in magnitude (184 μg/m 2/yr) to the GL core; again, the fluxes have since gone into strong decline. The accumulation rates recorded by the peat core for AD 1994 (14 μg/m 2/yr) are also comparable to the value for 1995 obtained by atmospheric transport modelling (18 μg/m 2/yr). Comparing the Pb/Ti and As/Ti ratios of the DK samples with the corresponding crustal ratios (or "natural background values" for preanthropogenic peat) shows that the samples dating from 1953 also contain the maximum concentration of "excess" Pb and As. The synchroneity of the enrichments of all three elements (Hg, Pb, and As) suggests a common source, with coal-burning the most likely candidate. Independent support for this interpretation was obtained from the Pb isotope data ( 206Pb/ 207Pb = 1.1481 ± 0.0002 in the leached fraction and 1.1505 ± 0.0002 in the residual fraction) which is too radiogenic to be explained in terms of gasoline lead alone, but compares well with values for U.K. coals. In contrast, the lowest values for 206Pb/ 207Pb in the DK profile (1.1370 ± 0.0003 in the leached fraction and 1.1408 ± 0.0003 in the residual fraction) are found in the sample dating from AD 1979: this shows that the maximum contribution of leaded gasoline occurred approximately 25 yr after the zenith in total anthropogenic Pb deposition.

High-resolution sulfur isotopes in ice cores identify large stratospheric volcanic eruptions

NASA Astrophysics Data System (ADS)

Burke, Andrea; Sigl, Michael; Adkins, Jess; Paris, Guillaume; McConnell, Joe

2016-04-01

The record of the volcanic forcing of climate over the past 2500 years is reconstructed primarily from sulfate concentrations in ice cores. Of particular interest are stratospheric eruptions, as these afford sulfate aerosols the longest residence time and largest dispersion in the atmosphere, and thus the greatest impact on radiative forcing. Identification of stratospheric eruptions currently relies on the successful matching of the same volcanic sulphate peak in ice cores from both the Northern and Southern hemispheres (a "bipolar event"). These are interpreted to reflect the global distribution of sulfur aerosols by the stratospheric winds. Despite its recent success, this method relies on precise and accurate dating of ice cores, in order to distinguish between a true 'bipolar event' and two separate eruptions that occurred in close temporal succession. Sulfur isotopes can been used to distinguish between these two scenarios since stratospheric sulfur aerosols are exposed to UV radiation which imparts a mass independent fractionation (Baroni et al., 2007). Mass independent fractionation of sulfate in ice cores thus offers a novel method of fingerprinting stratospheric eruptions, and thus refining the historic record of explosive volcanism and its forcing of climate. Here we present new high-resolution (sub-annual) sulfur isotope data from the Tunu Ice core in Greenland over seven eruptions. Sulfur isotopes were measured by MC-ICP-MS, which substantially reduces sample size requirements and allows high temporal resolution from a single ice core. We demonstrate the efficacy of the method on recent, well-known eruptions (including Pinatubo and Katmai/Novarupta), and then apply it to unidentified sulfate peaks, allowing us to identify new stratospheric eruptions. Baroni, M., Thiemens, M. H., Delmas, R. J., & Savarino, J. (2007). Mass-independent sulfur isotopic compositions in stratospheric volcanic eruptions. Science, 315(5808), 84-87. http://doi.org/10.1126/science.1131754

High-resolution Sulfur Isotopes in Ice Cores Identify Large Stratospheric Eruptions

NASA Astrophysics Data System (ADS)

Burke, A.; Sigl, M.; Moore, K.; Nita, D. C.; Adkins, J. F.; Paris, G.; McConnell, J.

2016-12-01

The record of the volcanic forcing of climate over the past 2500 years is reconstructed primarily from sulfate concentrations in ice cores. Of particular interest are stratospheric eruptions, as these afford sulfate aerosols the longest residence time and largest dispersion in the atmosphere, and thus the greatest impact on radiative forcing. Identification of stratospheric eruptions currently relies on the successful matching of the same volcanic sulfate peak in ice cores from both the Northern and Southern hemispheres (a "bipolar event"). These are interpreted to reflect the global distribution of sulfur aerosols by the stratospheric winds. Despite its recent success, this method relies on precise and accurate dating of ice cores, in order to distinguish between a true `bipolar event' and two separate eruptions that occurred in close temporal succession. Sulfur isotopes can been used to distinguish between these two scenarios since stratospheric sulfur aerosols are exposed to UV radiation which imparts a mass independent fractionation (Baroni et al., 2007). Mass independent fractionation of sulfate in ice cores thus offers a novel method of fingerprinting stratospheric eruptions, and thus refining the historic record of explosive volcanism and its forcing of climate. Here we present new high-resolution (sub-annual) sulfur isotope data from the Tunu Ice core in Greenland over seven eruptions. Sulfur isotopes were measured by MC-ICP-MS, which substantially reduces sample size requirements and allows high temporal resolution from a single ice core. We demonstrate the efficacy of the method on recent, well-known eruptions (including Pinatubo and Katmai/Novarupta), and then apply it to unidentified sulfate peaks, allowing us to identify new stratospheric eruptions. Baroni, M., Thiemens, M. H., Delmas, R. J., & Savarino, J. (2007). Mass-independent sulfur isotopic compositions in stratospheric volcanic eruptions. Science, 315(5808), 84-87. http://doi.org/10.1126/science.1131754

Pediatric psychiatric emergency department visits during a full moon.

PubMed

Kamat, Shyama; Maniaci, Vincenzo; Linares, Marc Yves-Rene; Lozano, Juan M

2014-12-01

This study aimed to verify the hypothesis that the lunar cycle influences the number of pediatric psychiatric emergency department (ED) visits. Pediatric psychiatric ED visits between 2009 and 2011 were obtained retrospectively. Patients aged between 4 and 21 years presenting to Miami Children's Hospital ED with a primary psychiatric complaint were included in the study. Patients with a concomitant psychiatric problem and a secondary medical condition were excluded. The number of psychiatric visits was retrieved for the full moon dates, control dates as well as the day before and after the full moon when the moon appears full to the naked eye (full moon effect). A comparison was made using the 2-sample independent t test. Between 2009 and 2011, 36 dates were considered as the true full moon dates and 108 dates as the "full moon effect." A total of 559 patients were included in the study. The 2-sample independent t tests were performed between the actual full moon date and control dates, as well as between the "full moon effect" dates and control dates. Our results failed to show a statistical significance when comparing the number of pediatric psychiatric patients presenting to a children's hospital ED during a full moon and a non-full moon date. Our study's results are in agreement with those involving adult patients. The full moon does not affect psychiatric visits in a children's hospital.

The nuclear bomb carbon curve recorded in tree-rings and lake sediments near Taal Volcano, Central Philippines

NASA Astrophysics Data System (ADS)

Liou, M. S.; Li, H. C.; Huang, S. K.; Guan, B. T.

2017-12-01

Dendrochronologies built from precisely dated annual rings have shown to record the regional bomb pulse and the C-14 concentration variations caused by local events. In this study, we collected teak trees Tectona grandis near the Lake Taal, Central Philippines in 2011 for dendrochronological analysis and radiocarbon dating. The tree-ring sample contains 90 rings dated from 1922 to 2011. Currently, 28 selected subsamples have been measured by AMS 14C on bulk carbon with a few samples on holocellulose. The 14C results of the samples indicate that: 1) the results of AMS 14C dating between holocellulose and whole wood from the same ring are similar, so we select whole wood for AMS 14C dating. 2) The nuclear bomb 14C pulse was clearly recorded in the Tectona grandis growth rings. The Δ14C values rose dramatically in 1960 and reached a maximum of 692‰ in 1966. The magnitude and the peak year of the bomb curve in the Tectona grandis tree-ring record are comparable to other published tree-ring records in the tropical regions. 3) The Δ14C values suddenly dropped in 1950, 1964 and 1968, probably affected by CO2 gas releasing due to the Taal volcanic activities. Further study on the tree-ring 14C dating will allow us to evaluate the bomb pulse trends more precisely, and the volcanic activities of Pinatubo and Taal Volcanoes. The tree-ring Δ14C record not only confirms existence of the bomb curve in Taal Lake area, but also allows us compare to the Δ14C record in the lake sediment for chronological construction. A 120-cm gravity core, TLS-2, collected from Lake Taal in 2008, shows the nuclear bomb carbon curve in the TOC of the core. However, the magnitude of the nuclear bomb 14C pulse in the TOC of TLS-2 is much lower than that in the tree-ring records, due to mixing effect of different organic carbon sources, smoothing effect of 14CO2 in multiple years plant growths, local old CO2 emission from volcanic activity, degassing from the lake bottom, and industrial and city pollutions. Nevertheless, by comparing the bomb curves, the chronology of Core TLS-2 is about 60 years with a mean sedimentary rate of 2 cm/yr.

Dating the Vostok ice core record by importing the Devils Hole chronology

USGS Publications Warehouse

Landwehr, J.M.; Winograd, I.J.

2001-01-01

The development of an accurate chronology for the Vostok record continues to be an open research question because these invaluable ice cores cannot be dated directly. Depth-to-age relationships have been developed using many different approaches, but published age estimates are inconsistent, even for major paleoclimatic events. We have developed a chronology for the Vostok deuterium paleotemperature record using a simple and objective algorithm to transfer ages of major paleoclimatic events from the radiometrically dated 500,000-year ??18O-paleotemperature record from Devils Hole, Nevada. The method is based only on a strong inference that major shifts in paleotemperature recorded at both locations occurred synchronously, consistent with an atmospheric teleconnection. The derived depth-to-age relationship conforms with the physics of ice compaction, and internally produces ages for climatic events 5.4 and 11.24 which are consistent with the externally assigned ages that the Vostok team needed to assume in order to derive their most recent chronology, GT4. Indeed, the resulting V-DH chronology is highly correlated with GT4 because of the unexpected correspondence even in the timing of second-order climatic events that were not constrained by the algorithm. Furthermore, the algorithm developed herein is not specific to this problem; rather, the procedure can be used whenever two paleoclimate records are proxies for the same physical phenomenon, and paleoclimatic conditions forcing the two records can be considered to have occurred contemporaneously. The ability of the algorithm to date the East Antarctic Dome Fuji core is also demonstrated.

Detail view of date stone marking the founding of the ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Detail view of date stone marking the founding of the Emmanuel Christian Community Church congregation - Reformed Episcopal Church of the Rock of Ages, 1210 West Lanvale Street, Baltimore, Independent City, MD

Application of the 226Ra– 230Th– 234U and 227Ac– 231Pa– 235U radiochronometers to uranium certified reference materials

DOE PAGES

Rolison, John M.; Treinen, Kerri C.; McHugh, Kelly C.; ...

2017-11-06

Uranium certified reference materials (CRM) issued by New Brunswick Laboratory were subjected to dating using four independent uranium-series radiochronometers. In all cases, there was acceptable agreement between the model ages calculated using the 231Pa– 235U, 230Th– 234U, 227Ac– 235U or 226Ra– 234U radiochronometers and either the certified 230Th– 234U model date (CRM 125-A and CRM U630), or the known purification date (CRM U050 and CRM U100). Finally, the agreement between the four independent radiochronometers establishes these uranium certified reference materials as ideal informal standards for validating dating techniques utilized in nuclear forensic investigations in the absence of standards with certifiedmore » model ages for multiple radiochronometers.« less

Application of the 226Ra– 230Th– 234U and 227Ac– 231Pa– 235U radiochronometers to uranium certified reference materials

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rolison, John M.; Treinen, Kerri C.; McHugh, Kelly C.

Uranium certified reference materials (CRM) issued by New Brunswick Laboratory were subjected to dating using four independent uranium-series radiochronometers. In all cases, there was acceptable agreement between the model ages calculated using the 231Pa– 235U, 230Th– 234U, 227Ac– 235U or 226Ra– 234U radiochronometers and either the certified 230Th– 234U model date (CRM 125-A and CRM U630), or the known purification date (CRM U050 and CRM U100). Finally, the agreement between the four independent radiochronometers establishes these uranium certified reference materials as ideal informal standards for validating dating techniques utilized in nuclear forensic investigations in the absence of standards with certifiedmore » model ages for multiple radiochronometers.« less

Multiproxy biomarker, isotopic and pollen reconstructions of the middle to late Holocene paleoclimate of the Loess Plateau in centre China

NASA Astrophysics Data System (ADS)

Sun, H.; Seki, O.; Zhou, A.; Chen, F.; Schouten, S.; Toney, J. L.; Bendle, J.

2011-12-01

The Asian monsoon is a key component of the earth's climate system that directly affects the livelihood of 50 million people on the loess plateau of central China. At the far edge of monsoonal influence, this region is especially vulnerable to future changes in temperature and evaporation / precipitation. Therefore, paleoclimatic information on the natural sensitivity of the region to changes in monsoon driven aridity are crucial. Despite the need for multiproxy records of Holocene climate from this region, reconstructions are rare, because of the low resolution of loess deposits and the scarcity of other paleoclimate archives (e.g. natural lakes, speleothems). Here we present multiple proxy records from Tianchi lake, one of the few nature lakes on the loess plateau and central China. The chronology is well constrained by a high-resolution (20 AMS 14C dates) radiocarbon age-model, spanning the past 6200 years. Here we present pollen, Glycerol dibiphytanyl glycerol tetraethers (GDGTs), lake macrophyte and higher plant-wax biomarkers to reconstruct regional climate change during the middle to late Holocene. Evidence from pollen data suggest that deciduous trees decreased from 6200 cal yr BP and then more rapidly from 1000 yr BP. Modern and downcore molecular distribution patterns of n-alkanes and n-alkanoic acids, especially n-alkane Paq values, suggest increasing relative abundance of macrophytes over this time, which we interpret (based on lake morphology) as decreasing lake-level. Using the recent Sun et al (2011) regional calibration we derive mean annual GDGT based temperatures (MBT/CBT-MATs) with reasonable ranges. Our temperature reconstruction closely correlates on millennial to centennial timescales with the independent D/H measurements on C28 fatty acid methyl esters (C28 FAMEs), whose signal is assumed to derive primarily from terrestrial plant waxes and the δD values to reflect local changes in relative humidity. Comparisons of our independent GDGT temperatures and plant-wax hydrogen isotopic records with stalagmite δ18O records from the monsoon region and NH summer insolation suggests strongly that our record reflects regional changes in monsoon strength forced by NH summer insolation. Superimposed on the longer-term insolation driven changes are centennial scale variations, recorded by both the independent reconstructions of relative humidity (C28 FAME δD) and temperature (MBT/CBT-MAT). In the most recent 1000yr, and especially the last 500yr of the record, the lake sediments record significant changes in many parameters, magnetic susceptibility, rapid increases in herbaceous pollen and decreases in deciduous trees, changes in biomarker distributions and isotopes. This is coeval with documentary records of increasing local population density and infers historical human impact on the catchment.

75 FR 11161 - Combined Notice of Filings #1

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-10

... Generator Interconnection Agreement among SES Solar One, LLC et al. Filed Date: 02/25/2010. Accession Number... System Operator Inc. Description: New York Independent System Operator, Inc submits proposed revisions to... Independent Transmission System Operator Inc. Description: Midwest Independent Transmission System Operator...

76 FR 45336 - Departmental Offices; Privacy Act of 1974, as Amended; Systems of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-28

... systems of records entitled ``Treasury/DO .191--Human Resources and Administrative Records System.'' DATES... system of records Treasury/DO .191 entitled ``Human Resources and Administrative Records system,'' follow: Treasury/DO .191 System Name: Human Resources and Administrative Records System * * * * * Categories of...

Varved sediments from Lake Czechowskie (Poland) reveal gradual increase in Atlantic influence during the Holocene

NASA Astrophysics Data System (ADS)

Ott, Florian; Brauer, Achim; Słowiński, Michał; Wulf, Sabine; Putyrskaya, Victoria; Plessen, Birgit; Błaszkiewicz, Miroslaw

2015-04-01

Detailed micro-facies and geochemical analyses have been carried out for the predominantly varved Holocene sediment record of Lake Czechowskie (north-central Poland). The chronology has been established by a multiple dating approach comprising varve counting, AMS 14C dating, 137Cs activity concentration measurements and tephrochronology. The combination of independent dating techniques revealed well-constrained time scales even in phases lacking annual laminations and allows reliable high-resolution archive synchronization. Quantitative (varve thickness variations) and qualitative (sublayer structure) varve parameters as well as geochemical composition have been obtained to gain a comprehensive view of climatic and environmental evolution during the last 11500 years in northern Poland. Five major sedimentological changes have been identified, encompassing transitions from varved to non-varved sediments (and vice versa) at 10.100 and 7.300 cal a BP, respectively, changes in general varve pattern at 6.500 and 4.200 cal a BP and distinct increase of varve thickness accompanied by increased annual variability since 2.800 cal a BP. These changes reflect large-scale reorganization of the climate system throughout the Holocene with increasing influences of the North Atlantic climate system in Poland. Moreover, the observed changes suggest different thresholds and trigger mechanisms over the investigated time period. This study is a contribution to the Virtual Institute of Integrated Climate and Landscape Evolution Analyses - ICLEA - of the Helmholtz Association, grant number VH-VI-415.

28 CFR 700.31 - Exemption of the Office of Independent Counsel's systems of records-limited access.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Exemption of the Office of Independent Counsel's systems of records-limited access. 700.31 Section 700.31 Judicial Administration OFFICE OF INDEPENDENT COUNSEL PRODUCTION OR DISCLOSURE OF MATERIAL OR INFORMATION OF THE OFFICE OF INDEPENDENT COUNSEL Exemption of the Office of Independent...

77 FR 76215 - Compensation, Retirement Programs, and Related Benefits; Effective Date

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-27

... Houses of Congress are in session. DATES: Effective Date--Under the authority of 12 U.S.C. 2252, the... which either or both Houses of Congress are in session. Based on the records of the sessions of Congress...

42 CFR 60.42 - Records, reports, inspection, and audit requirements for HEAL lenders and holders.

Code of Federal Regulations, 2013 CFR

2013-10-01

... must maintain for each borrower a payment history showing the date and amount of each payment received... lender or holder must also maintain for each loan a collection history showing the date and subject of... original copy of an unpaid promissory note, but may store all other records in microform or computer format...

42 CFR 60.42 - Records, reports, inspection, and audit requirements for HEAL lenders and holders.

Code of Federal Regulations, 2011 CFR

2011-10-01

... must maintain for each borrower a payment history showing the date and amount of each payment received... lender or holder must also maintain for each loan a collection history showing the date and subject of... original copy of an unpaid promissory note, but may store all other records in microform or computer format...

42 CFR 60.42 - Records, reports, inspection, and audit requirements for HEAL lenders and holders.

Code of Federal Regulations, 2012 CFR

2012-10-01

... must maintain for each borrower a payment history showing the date and amount of each payment received... lender or holder must also maintain for each loan a collection history showing the date and subject of... original copy of an unpaid promissory note, but may store all other records in microform or computer format...

Linking a Total Ankle Arthroplasty Registry to Medicare Inpatient Claims without Unique Identifiers.

PubMed

Raman, Sudha R; Hammill, Bradley G; Queen, Robin M; Adams, Samuel B; Curtis, Lesley H

2018-06-20

Linking clinical registries to administrative claims data enables researchers to capitalize on the specific strengths of each data source with respect to the depth, breadth, and completeness of information. The objectives of this study were to link a health-system-based orthopaedic surgery registry to U.S. Medicare claims data without the use of unique identifiers and to assess the representativeness of the linked records. The registry included clinical data for patients ≥65 years of age who underwent elective, inpatient total ankle arthroplasty (TAA) in a single health system during the period of 2007 through 2012. Registry participants were identified within the Medicare data by linking registry procedures to TAA procedures within the claims data using a combination of procedure date, patient date of birth, and patient sex. We assessed the representativeness of the linked records by comparing them to both unlinked registry records and unlinked Medicare records for TAA procedures. Additionally, we described the availability of postsurgical data for linked records. Of 360 TAA registry participants ≥65 years of age, 280 (77.8%) were matched to a Medicare record; 250 (89.3%) of those 280 participants were matched on the basis of a linking rule that required an exact match for procedure date, date of birth, and sex. The 280 linked records comprised 5.5% of all Medicare TAA procedures among beneficiaries ≥65 years of age enrolled in the fee-for-service Medicare program (n = 5,070). Compared with linked records, unlinked records were more likely to be for patients 65 to 69 years old, but the 2 groups were similar in terms of sex, body mass index, and availability of clinical measurements. Of the linked records, 214 (76.4%) had ≥3 years of postoperative follow-up claims data. Linkage without unique patient identifiers between an orthopaedic registry and Medicare claims data is feasible, allows for assessment of representativeness, and creates a unique resource of longitudinal data for research.

A Holocene paleosecular variation from 14C-dated volcanic rocks in Western North America

USGS Publications Warehouse

Hagstrum, J.T.; Champion, D.E.

2002-01-01

A paleosecular variation (PSV) curve for western North America is presented on the basis of 94 virtual geomagnetic poles (VGPs) from dated volcanic rocks sampled at 446 sites. Approximately 60% of the paleomagnetic database has been previously published. A curve defined by "spherical smoothed splines" is fitted to the VGPs, ranked by the quality of the age determinations, where the data density is highest between 3690 and -30 years before present (B.P.) (A.D. 1950), between 7800 and 7050 years B.P., and between 14,060 and 12,700 years B.P. The younger segments of the curve derived from volcanic rocks are similar but less complex than other high-resolution PSV curves derived from lacustrine sediments, particularly the record at Fish Lake, Oregon. The PSV record from lava flows (PSVL), however, is perhaps more reliable in its general shape and chronology because of the higher fidelity of volcanic rocks as magnetic field recorders and because of the greater density of 14C dates. The new PSVL record provides a partial Holocene master curve for western North America and will be of particular value in dating geological and archeological materials using paleomagnetic directions.

A molecular palaeobiological exploration of arthropod terrestrialization

PubMed Central

Carton, Robert; Edgecombe, Gregory D.

2016-01-01

Understanding animal terrestrialization, the process through which animals colonized the land, is crucial to clarify extant biodiversity and biological adaptation. Arthropoda (insects, spiders, centipedes and their allies) represent the largest majority of terrestrial biodiversity. Here we implemented a molecular palaeobiological approach, merging molecular and fossil evidence, to elucidate the deepest history of the terrestrial arthropods. We focused on the three independent, Palaeozoic arthropod terrestrialization events (those of Myriapoda, Hexapoda and Arachnida) and showed that a marine route to the colonization of land is the most likely scenario. Molecular clock analyses confirmed an origin for the three terrestrial lineages bracketed between the Cambrian and the Silurian. While molecular divergence times for Arachnida are consistent with the fossil record, Myriapoda are inferred to have colonized land earlier, substantially predating trace or body fossil evidence. An estimated origin of myriapods by the Early Cambrian precedes the appearance of embryophytes and perhaps even terrestrial fungi, raising the possibility that terrestrialization had independent origins in crown-group myriapod lineages, consistent with morphological arguments for convergence in tracheal systems. This article is part of the themed issue ‘Dating species divergences using rocks and clocks’. PMID:27325830

A survey of nuclear ribosomal internal transcribed spacer substitution rates across angiosperms: an approximate molecular clock with life history effects

PubMed Central

Kay, Kathleen M; Whittall, Justen B; Hodges, Scott A

2006-01-01

Background A full understanding of the patterns and processes of biological diversification requires the dating of evolutionary events, yet the fossil record is inadequate for most lineages under study. Alternatively, a molecular clock approach, in which DNA or amino acid substitution rates are calibrated with fossils or geological/climatic events, can provide indirect estimates of clade ages and diversification rates. The utility of this approach depends on the rate constancy of molecular evolution at a genetic locus across time and across lineages. Although the nuclear ribosomal internal transcribed spacer region (nrITS) is increasingly being used to infer clade ages in plants, little is known about the sources or magnitude of variation in its substitution rate. Here, we systematically review the literature to assess substitution rate variation in nrITS among angiosperms, and we evaluate possible correlates of the variation. Results We summarize 28 independently calibrated nrITS substitution rates ranging from 0.38 × 10-9 to 8.34 × 10-9 substitutions/site/yr. We find that herbaceous lineages have substitution rates almost twice as high as woody plants, on average. We do not find any among-lineage phylogenetic constraint to the rates, or any effect of the type of calibration used. Within life history categories, both the magnitude of the rates and the variance among rates tend to decrease with calibration age. Conclusion Angiosperm nrITS substitution rates vary by approximately an order of magnitude, and some of this variation can be attributed to life history categories. We make cautious recommendations for the use of nrITS as an approximate plant molecular clock, including an outline of more appropriate phylogenetic methodology and caveats against over interpretation of results. We also suggest that for lineages with independent calibrations, much of the variation in nrITS substitution rates may come from uncertainty in calibration date estimates, highlighting the importance of accurate and/or multiple calibration dates. PMID:16638138

77 FR 27859 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-11

... Veterans Affairs. ACTION: Notice of New System of Records ``Virtual Lifetime Electronic Record (VLER)-VA... ``Virtual Lifetime Electronic Record (VLER)-VA'' (168VA10P2). DATES: Comments on this new system of records... Virtual Lifetime Electronic Record (VLER) is an overarching program being developed by the Department of...

12 CFR 749.2 - Vital records preservation program.

Code of Federal Regulations, 2012 CFR

2012-01-01

... compliance for the storage of those records if the service agreement specifies the data processor safeguards... records preservation, a schedule for the storage and destruction of records, and a records preservation log detailing for each record stored, its name, storage location, storage date, and name of the person...

12 CFR 749.2 - Vital records preservation program.

Code of Federal Regulations, 2013 CFR

2013-01-01

... compliance for the storage of those records if the service agreement specifies the data processor safeguards... records preservation, a schedule for the storage and destruction of records, and a records preservation log detailing for each record stored, its name, storage location, storage date, and name of the person...

12 CFR 749.2 - Vital records preservation program.

Code of Federal Regulations, 2011 CFR

2011-01-01

... compliance for the storage of those records if the service agreement specifies the data processor safeguards... records preservation, a schedule for the storage and destruction of records, and a records preservation log detailing for each record stored, its name, storage location, storage date, and name of the person...

12 CFR 749.2 - Vital records preservation program.

Code of Federal Regulations, 2010 CFR

2010-01-01

... compliance for the storage of those records if the service agreement specifies the data processor safeguards... records preservation, a schedule for the storage and destruction of records, and a records preservation log detailing for each record stored, its name, storage location, storage date, and name of the person...

12 CFR 749.2 - Vital records preservation program.

Code of Federal Regulations, 2014 CFR

2014-01-01

... compliance for the storage of those records if the service agreement specifies the data processor safeguards... records preservation, a schedule for the storage and destruction of records, and a records preservation log detailing for each record stored, its name, storage location, storage date, and name of the person...

10 CFR 9.55 - Specification of records.

Code of Federal Regulations, 2010 CFR

2010-01-01

... sought, the approximate dates covered by the record, the system of records in which the record is thought to be included and the system manager having custody of the record system as shown in the annual compilation, “Notices of Records Systems”, published by the General Services Administration. Requests shall...

Precise dating of Dansgaard-Oeschger climate oscillations in western Europe from stalagmite data.

PubMed

Genty, D; Blamart, D; Ouahdi, R; Gilmour, M; Baker, A; Jouzel, J; Van-Exter, Sandra

2003-02-20

The signature of Dansgaard-Oeschger events--millennial-scale abrupt climate oscillations during the last glacial period--is well established in ice cores and marine records. But the effects of such events in continental settings are not as clear, and their absolute chronology is uncertain beyond the limit of (14)C dating and annual layer counting for marine records and ice cores, respectively. Here we present carbon and oxygen isotope records from a stalagmite collected in southwest France which have been precisely dated using 234U/230Th ratios. We find rapid climate oscillations coincident with the established Dansgaard-Oeschger events between 83,000 and 32,000 years ago in both isotope records. The oxygen isotope signature is similar to a record from Soreq cave, Israel, and deep-sea records, indicating the large spatial scale of the climate oscillations. The signal in the carbon isotopes gives evidence of drastic and rapid vegetation changes in western Europe, an important site in human cultural evolution. We also find evidence for a long phase of extremely cold climate in southwest France between 61.2 +/- 0.6 and 67.4 +/- 0.9 kyr ago.

A brief review of 210Pb sediment dating models and uncertainties in a world of global change

NASA Astrophysics Data System (ADS)

Sanchez-Cabeza, J. A.; Ruiz-Fernandez, A. C.

2016-12-01

Irrespective of the model names used, assumptions and (usually forgotten) uncertainties, the fact is that 210Pb sediment dating is an increasingly relevant tool in our world of global change. 210Pb dating results are needed to assess historical trends of sea level rise, quantify blue carbon fluxes and reconstruct environmental records of biogeochemical proxies for diverse processes in the aquatic ecosystems (such as ocean acidification, hypoxia and pollution). Although in the past 210Pb profiles departing from "ideal" decay trends were usually discarded, all profiles have useful information. In this work we review the principles and assumptions of the most common 210Pb dating models, and propose a logical formulation and classification of the models. 210Pb dating models provide two kinds of results: chronologies (i.e. age models) and accumulation rates. In many cases, the use of sediment and/or mass accumulation rates (SAR and MAR) is needed to assess environmental fluxes or, simply, to describe changes, such as catchment erosion or saltmarsh accretion. Although uncertainty quadratic propagation is a well-known technique, it requires that all variables are fully independent and requires demanding mathematical expressions which might lead to wrong results. We present here a Monte Carlo method that makes calculation easier and, likely, error-free. Not unexpectedly, the most important uncertainty sources are measurement uncertainties, which impose limitations on common techniques such as gamma spectrometry. 210Pb chronology does not cover all anthropogenic impacts, such as those caused by ancient civilizations, so radiocarbon also plays an important role in this kind of work. We also conceptually revise the limitations of both techniques and encourage scientists to link both dating techniques with a symmetrically open mind. Acknowledgements: projects CONACYT PDCPN2013-01/214349 and CB2010/153492, UNAM PAPIIT-IN203313, PRODEP network "Aquatic contamination: levels and effects" (year 3).

Southward migrations of tropical rainfall during Heinrich Events: compelling evidence from δ18O of atmospheric O2

NASA Astrophysics Data System (ADS)

Seltzer, A. M.; Buizert, C.; Baggenstos, D.; Brook, E.; Ahn, J.; Yang, J. W.; Severinghaus, J. P.

2017-12-01

Multiple independent paleoclimate records from marine sediments, speleothems, and ice cores support the notion that the thermal equator and tropical rain belts abruptly shifted southward in response to northern high-latitude iceberg discharge during Heinrich Events (HEs). Here we present a composite, 50-ka record of δ18O of O2 (δ18Oatm) from the Siple Dome (SD) and WAIS Divide (WD) Antarctic ice cores which provides further evidence for this teleconnection from a globally integrated paleoclimate archive: atmospheric air bubbles. We introduce a simple mechanism by which changes in the global isotopic fractionation of atmospheric O2 (ΔɛLAND) record the centroid latitude of terrestrial oxygen production: the terrestrial oxygenesis equator (TOE). Drawing on modern seasonal records of terrestrial gross primary productivity (GPP) and δ18O of precipitation (δ18Op), we identify a strong negative correlation between TOE and GPP-weighted δ18Op. This relationship suggests that past increases in ΔɛLAND following HEs indicate southward displacements of terrestrial oxygen production, presumably due to southward displacements of the thermal equator and tropical rain belts. In the composite SD-WD record, local maxima in ΔɛLAND coincide (within dating uncertainty) with small, abrupt increases in atmospheric methane (measured in WD) within Heinrich Stadials 1, 2, 4 and 5. The composite ΔɛLAND record therefore adds strong support to the interpretation that these methane spikes indicate stimulation of southern hemisphere wetland emissions due to southward shifts of tropical rainfall in response to HEs.

40 CFR 63.9550 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c..., maintenance, corrective action, report, or record, according to § 63.10(b)(1). You can keep the records...

40 CFR 63.7192 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c..., maintenance, corrective action, report, or record, according to § 63.10(b)(1). You can keep the records...

40 CFR 63.8822 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c..., maintenance, corrective action, report, or record, according to § 63.10(b)(1). You can keep the records...

An absolutely dated high-resolution stalagmite record from Lianhua Cave in central China: Climate forcing and comparison with Wanxiang Cave and Dongge Cave records over the past 2000 years

NASA Astrophysics Data System (ADS)

Li, Hong-Chun; Yin, Jian-Jun; Shen, Chuan-Chou; Mii, Horng-Sheng; Li, Ting-Yong

2015-04-01

A 33-cm long aragonite stalagmite (LHD-1) from Lianhua Cave has been dated by MC-ICPMS 230Th/U method on 41 horizons. Very high U contents (1~6ppm) and low Th contents yield excellent 230Th/U dates which provide reliable chronology of the stalagmite on sub-decadal time scale over the past 3350 years. A total of 1716 samples have been measured for δ18O and δ13C, spanning annual resolution over the past 1820 years. The stalagmite δ18O is not only influenced by the 'amount effect', but also affected by the moisture source. Enhanced the tropical monsoon trough under strong EASM brings higher spring quarter rainfall with isotopically light monsoonal moisture in the cave site, resulting in lighter stalagmite δ18O. On decadal or longer time scales, increased solar activity produces warmer condition and stronger summer monsoon which lead to wet climates. On interannual-to-decadal scales, the Walker Circulation under El Niño conditions during cold periods will shift toward the central Pacific and result in weakening of EASM. Under such a circumstance, dry climates will be prevailed in the study area. Based on the δ18O and δ13C records, we have deciphered climatic and vegetation changes of the study area in decadal scales. The highly precise dated LHD-1 record has been compared with previous published Wanxiang Cave and Dongge Cave records. Although some similarities can be found, there are major discrepancies among the three well-dated records, especially during AD 500-700 and AD 1300-1600. In additional, the major weak monsoon periods defined in the Wanxiang Cave record during late Tang Dynasty, late Yuan Dynasty and late Ming Dynasty are not supported by the LHD-1 record. The heaviest δ18O peaks (more than five continuous heavy values) over the past 2000 years appeared around AD 1990-2003, 1657-1662, 1220-1228, 663-669, 363-370, and 1082-1090 (in the order of heavy to light). None of these periods occurred Chinese dynasty collapse.

7 CFR 1.13 - Date of receipt of requests or appeals.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 7 Agriculture 1 2013-01-01 2013-01-01 false Date of receipt of requests or appeals. 1.13 Section 1.13 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Official Records § 1.13 Date of receipt of requests or appeals. The date of receipt of a request or appeal shall be the...

Getting In, Being In, Staying In, and Getting Out: Adolescents' Descriptions of Dating and Dating Violence

ERIC Educational Resources Information Center

Helm, Susana; Baker, Charlene K.; Berlin, Jeffrey; Kimura, Shaye

2017-01-01

Dating is a highly desirable experience during adolescence and serves as an important developmental milestone. This study explored healthy and unhealthy dating as a step toward improving adolescent well-being. Six focus group interviews were conducted with high school-aged girls and boys (N = 35). Interviews were audio recorded, transcribed…

High Sedimentation Rate Paleomagnetic Records for the Last 70 kyrs From the Chilean Margin (ODP Sites 1233, 1234, 1235)

NASA Astrophysics Data System (ADS)

Stoner, J. S.; Lund, S.; Channell, J. E.; Mix, A. C.; Davies, M. H.; Lamy, F.

2008-12-01

Sediments that accumulate at around 1-m/kyr or greater preserve a paleomagnetic record that, under favorable conditions, may record the original geomagnetic input with little smoothing. However, such great rates of accumulation come with a price as features of interest are often deeply buried and may only be adequately recovered using drilling technologies. Here we present a full-vector geomagnetic reconstruction for the last 70,000 yrs from ultrahigh resolution records obtained through ODP drilling (Leg 202) on the Chilean Margin. ODP Site 1233 (41.0 S, 74.26 W, water depth 838 m) provides a 135-mcd u-channel derived directional paleomagnetic secular variation (PSV) and relative paleointensity (RPI) records. The chronology is constrained by AMS radiocarbon dates and tuning of alkenone sea surface temperature to Antarctic ice core temperature records back to 70,000 years BP. To the north, ODP Sites 1234 (36.13 S, 73.40W, water depth 1015 m) and 1235 (36.9 S, 73.33 W, water depth 489 m) provide independently dated shipboard and developing u-channel paleomagnetic records that reproduce many of the geomagnetic features observed at Site 1233 including excursions and high amplitude PSV intervals, while providing additional radiocarbon and isotopic constraints for development of a regional master chronology. All three Sites have exceptionally high glacial sedimentation rates that average 2-m/kyr for 1233, 80-cm/kyr for 1234 and 1-m/kyr for 1235. Fortuitously, the Laschamp magnetic excursion at Site 1233 occurs during an interval where sedimentation rates exceed 3-m/kyr. The Site 1233 chronology indicates that the Laschamp event, centered at 41,000 yrs BP, has a duration in reverse polarity of only 600 yrs, with polarity transitions occurring in less than 200 yrs within a 1500 yr long interval of low RPI. The path of virtual geomagnetic pole (VGP) positions for the Laschamp excursion at Site 1233 is generally consistent with the hypothesis of a simple field geometry because the large clockwise VGP loop mimics the path seen for other sites recording the same excursion. Unlike prior observations, this path begins and ends at approximately the same Alaskan location after making a complete loop through the Pacific to high (> 80 degrees) southerly latitudes. Insights into the dynamics PSV and RPI, the resolution of magnetic stratigraphies, the geomagnetic controls on cosmic ray shielding and whether these might affect climate will also be touched upon.

NRC comprehensive records disposition schedule. Revision 3

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1998-02-01

Title 44 US Code, ``Public Printing and Documents,`` regulations issued by the General Service Administration (GSA) in 41 CFR Chapter 101, Subchapter B, ``Management and Use of Information and Records,`` and regulations issued by the National Archives and Records Administration (NARA) in 36 CFR Chapter 12, Subchapter B, ``Records Management,`` require each agency to prepare and issue a comprehensive records disposition schedule that contains the NARA approved records disposition schedules for records unique to the agency and contains the NARA`s General Records Schedules for records common to several or all agencies. The approved records disposition schedules specify the appropriate durationmore » of retention and the final disposition for records created or maintained by the NRC. NUREG-0910, Rev. 3, contains ``NRC`s Comprehensive Records Disposition Schedule,`` and the original authorized approved citation numbers issued by NARA. Rev. 3 incorporates NARA approved changes and additions to the NRC schedules that have been implemented since the last revision dated March, 1992, reflects recent organizational changes implemented at the NRC, and includes the latest version of NARA`s General Records Schedule (dated August 1995).« less

7 CFR 1207.533 - Availability of records.

Code of Federal Regulations, 2014 CFR

2014-01-01

... imported, and a record of each importation of potatoes, potato products, and seed potatoes including quantity, date, and port of entry, and shall make such records available for inspection by authorized...

7 CFR 1207.533 - Availability of records.

Code of Federal Regulations, 2012 CFR

2012-01-01

... imported, and a record of each importation of potatoes, potato products, and seed potatoes including quantity, date, and port of entry, and shall make such records available for inspection by authorized...

7 CFR 1207.533 - Availability of records.

Code of Federal Regulations, 2010 CFR

2010-01-01

... imported, and a record of each importation of potatoes, potato products, and seed potatoes including quantity, date, and port of entry, and shall make such records available for inspection by authorized...

17 CFR 4.22 - Reporting to pool participants.

Code of Federal Regulations, 2011 CFR

2011-04-01

... National Futures Association pursuant to this paragraph (c); or (B) The date of the formation of the pool...); or (2) The date of the formation of the pool; and (B) The close of the pool's fiscal year or the date... audited by an independent public accountant. The requirements of § 1.16(g) of this chapter shall apply...

21 CFR 1301.13 - Application for registration; time for application; expiration date; registration for independent...

Code of Federal Regulations, 2010 CFR

2010-04-01

... treatment program is first registered, that business activity shall be assigned to one of twelve groups... these business activities to a group, the Administration may select a group the expiration date of which is less than one year from the date such business activity was registered. If the business activity...

76 FR 1595 - Notice of Proposed Changes to the National Handbook of Conservation Practices for the Natural...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-01-11

... systems that treat highly erodible land (HEL) or on land determined to be a wetland. Section 343 of the... wetland provisions of the law. DATES: Effective Date: This is effective January 11, 2011. Comment Date... Resources Conservation Service, 1400 Independence Avenue, SW., Room 6136 South Building, Washington, DC...

Psychosocial Factors Associated with Reports of Physical Dating Violence Victimization among U.S. Adolescent Males

ERIC Educational Resources Information Center

Howard, Donna E.; Wang, Min Qi; Yah, Fang

2008-01-01

The present study, based upon the national 2005 Youth Risk Behavior Survey of U.S. high school students, provides the most current and representative data on physical dating violence among adolescent males (N = 6,528) The dependent variable was physical dating violence. The independent variables included four dimensions: violence, suicide,…

Timing of Expansions of the Quelccaya Ice Cap, Peru, and Implications for Cosmogenic Nuclide Production Rate Calibration

NASA Astrophysics Data System (ADS)

Lowell, T. V.; Kelly, M. A.; Applegate, P. J.; Smith, C. A.; Phillips, F. M.; Hudson, A. M.

2010-12-01

We calibrate the production rate of the cosmogenic nuclide beryllium-10 (10Be) at a low-latitude, high-elevation site, using nuclide concentrations measured in moraine boulders and an independent chronology determined with bracketing radiocarbon dates. The measurement of terrestrial cosmogenic nuclide (TCN) concentrations in earth surface materials has been an important development for understanding a host of earth surface processes. Uncertainty in cosmogenic nuclide production rates has hampered application of this method. Here, we contribute to the estimation of 10Be production rates by reporting both preliminary 10Be concentrations and independent radiocarbon dates from a low latitude, high elevation site. Our study site in the southeastern Peruvian Andes (~13.9°S, 70.9°W, 4850 m asl) is centered on a moraine set, known as the Huancané II moraines, that represents a ~4 km expansion of Quelccaya Ice Cap during late glacial time. At this location, organic material situated both stratigraphically below and above moraines in two adjacent valleys provide material for radiocarbon dating. Based on geomorphic arguments, we correlate results from the two valleys. The timing of ice cap margin advance is bracketed by 13 radiocarbon ages on organic material within the outermost Huancané II moraines that range from 13.6 to 12.5 ka. Two stratigraphic sections upvalley from the moraines yield 6 radiocarbon ages from 11.3 to 12.4 ka, indicating the time of retreat . We computed the probability density function that lies between these two sets of dates, and assign an age of 12.4 ka (+/-???) for the formation of the Huancané II moraines. Calculating beryllium-10 exposure dates from the measured concentrations yield exposure dates that significantly underestimate the independently determined age of the moraine (~8-30%), if existing production rate estimates are used. We suggest that the radiocarbon age for the moraines can be used as a robust independent calibration for 10Be production rates at this site.

77 FR 18205 - Privacy Act System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-27

... DEPARTMENT OF COMMERCE [Docket No. 111115680-2197-02] Privacy Act System of Records AGENCY: U.S. Census Bureau, Department of Commerce. ACTION: Notice of amended Privacy Act System of Records: COMMERCE... date of an amended Privacy Act System of Records titled, ``COMMERCE/CENSUS-6, Population Census Records...

Fossil Crustaceans as Parasites and Hosts.

PubMed

Klompmaker, Adiël A; Boxshall, Geoff A

2015-01-01

Numerous crustacean lineages have independently moved into parasitism as a mode of life. In modern marine ecosystems, parasitic crustaceans use representatives from many metazoan phyla as hosts. Crustaceans also serve as hosts to a rich diversity of parasites, including other crustaceans. Here, we show that the fossil record of such parasitic interactions is sparse, with only 11 examples, one dating back to the Cambrian. This may be due to the limited preservation potential and small size of parasites, as well as to problems with ascribing traces to parasitism with certainty, and to a lack of targeted research. Although the confirmed stratigraphic ranges are limited for nearly every example, evidence of parasitism related to crustaceans has become increasingly more complete for isopod-induced swellings in decapods so that quantitative analyses can be carried out. Little attention has yet been paid to the origin of parasitism in deep time, but insight can be generated by integrating data on fossils with molecular studies on modern parasites. In addition, there are other traces left by parasites that could fossilize, but have not yet been recognized in the fossil record. Copyright © 2015 Elsevier Ltd. All rights reserved.

77 FR 2056 - Midwest Independent Transmission System Operator, Inc.; Notice of Filing

Federal Register 2010, 2011, 2012, 2013, 2014

2012-01-13

... future recovery certain costs with the integration of the Entergy Operating Companies. Any person... comment date. On or before the comment date, it is not necessary to serve motions to intervene or protests...

19 CFR 111.23 - Retention of records.

Code of Federal Regulations, 2012 CFR

2012-04-01

... bonded warehouse, records relating to the withdrawal must be retained for 5 years from the date of... consolidated location, the methodology of record maintenance, a description of any automated data processing to...

19 CFR 111.23 - Retention of records.

Code of Federal Regulations, 2010 CFR

2010-04-01

... bonded warehouse, records relating to the withdrawal must be retained for 5 years from the date of... consolidated location, the methodology of record maintenance, a description of any automated data processing to...

19 CFR 111.23 - Retention of records.

Code of Federal Regulations, 2011 CFR

2011-04-01

... bonded warehouse, records relating to the withdrawal must be retained for 5 years from the date of... consolidated location, the methodology of record maintenance, a description of any automated data processing to...

Effects of Syn-pandemic Fire Reduction and Reforestation in the Tropical Americas on Atmospheric Carbon Dioxide During European Conquest

NASA Astrophysics Data System (ADS)

Nevle, R. J.; Bird, D. K.

2008-12-01

A new reconstruction of the Late Holocene biomass burning history of the tropical Americas is consistent with expanding fire use by Mesoamerican and Amazonian agriculturalists from 2000-500 BP and a subsequent period of fire reduction due to indigenous demographic collapse. Our reconstruction synthesizes published data from 50 charcoal accumulation records obtained from stratified lacustrine sediments and from soils, including soil charcoal records recovered from archeological sites. Synthesis of stratigraphic charcoal records yields indexes of the mean rate of regional charcoal accumulation and of variability in charcoal accumulation among sites during 500-year increments since 3500 BP. The age distribution of dated soil charcoal particles from non-archeological sites provides an independent measure of variation in regional charcoal accumulation; whereas age distribution of soil charcoal dates from archeological sites records variation in charcoal accumulation related to anthropogenic biomass burning. We observe that the charcoal accumulation indexes derived from stratigraphic records begin to increase at 2000 BP, remain high until 500 BP, and then decline to near-minimum values during the 500-year period subsequent to European contact. Similarly, the age distributions of soil charcoal dated from both non-archeological and archeological sites indicate increases in charcoal accumulation from 2000 to 500 BP followed by decline. An index of the inter- site variability in charcoal accumulation obtained from the stratigraphic records attains a maximum during the time period between 1000 and 500 BP and a near-minimum value afterward. We interpret the covariation between measures of charcoal accumulation derived from archeological and non-archeological sites as a consequence of the expansive influence of anthropogenic activity on the regional fire regime. Increases in regional charcoal accumulation apparent in both the stratigraphic and soil charcoal records beginning at 2000 BP correlate with expanding indigenous population, agriculture, and fire use in the tropical Americas. The rise in inter-site variability in charcoal accumulation after 2000 BP is consistent with a demographic shift toward sedentary agrarian communities and localized increases in charcoal accumulation in densely populated centers. Declines in regional charcoal accumulation and inter-site variability after 500 BP suggest a correlative cause related to reduction in anthropogenic biomass burning resulting from pandemic-driven population collapse. Published reconstructions of Pre-Columbian demography indicate that during European conquest, pandemics killed ~90% of the indigenous American population (~60 million), estimated to represent ~20% of the 16th century global population. Our predictive calculations suggest that fire reduction in the tropical Americas is associated with massive forest regeneration on ~5 x 105 km2 of land and sequestration of 5-10 Gt C into the terrestrial biosphere, which can account for 13- 50% of the ~2% global reduction in atmospheric CO2 levels and the 0.1‰ increase in δ13C of atmospheric CO2 from 1500 to 1700 CE recorded in Antarctic ice cores and tropical sponges. New archeological discoveries revealing extensive networks of geoglyphs and urban polities in Pre-Columbian Amazonia suggest that our estimates of reforestation, and consequent effects on atmospheric CO2, may be conservative.

40 CFR 63.3931 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c..., maintenance, corrective action, report, or record according to § 63.10(b)(1). You may keep the records off...

40 CFR 63.8645 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c) You..., maintenance, corrective action, report, or record, according to § 63.10(b)(1). You may keep the records...

40 CFR 63.4313 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c..., maintenance, corrective action, report, or record, according to § 63.10(b)(1). You may keep the records off...

40 CFR 63.7843 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c..., maintenance, corrective action, report, or record according to § 63.10(b)(1). You can keep the records offsite...

Tephrostratigraphy the DEEP site record, Lake Ohrid

NASA Astrophysics Data System (ADS)

Leicher, N.; Zanchetta, G.; Sulpizio, R.; Giaccio, B.; Wagner, B.; Francke, A.

2016-12-01

In the central Mediterranean region, tephrostratigraphy has been proofed to be a suitable and powerful tool for dating and correlating marine and terrestrial records. However, for the period older 200 ka, tephrostratigraphy is incomplete and restricted to some Italian continental basins (e.g. Sulmona, Acerno, Mercure), and continuous records downwind of the Italian volcanoes are rare. Lake Ohrid (Macedonia/Albania) in the eastern Mediterranean region fits this requisite and is assumed to be the oldest continuously existing lake of Europe. A continous record (DEEP) was recovered within the scope of the ICDP deep-drilling campaign SCOPSCO (Scientific Collaboration on Past Speciation Conditions in Lake Ohrid). In the uppermost 450 meters of the record, covering more than 1.2 Myrs of Italian volcanism, 54 tephra layers were identified during core-opening and description. A first tephrostratigraphic record was established for the uppermost 248 m ( 637 ka). Major element analyses (EDS/WDS) were carried out on juvenile glass fragments and 15 out of 35 tephra layers have been identified and correlated with known and dated eruptions of Italian volcanoes. Existing 40Ar/39Ar ages were re-calculated by using the same flux standard and used as first order tie points to develop a robust chronology for the DEEP site succession. Between 248 and 450 m of the DEEP site record, another 19 tephra horizons were identified and are subject of ongoing work. These deposits, once correlated with known and dated tephra, will hopefully enable dating this part of the succession, likely supported by major paleomagnetic events, such as the Brunhes-Matuyama boundary, or the Cobb-Mountain or the Jaramillo excursions. This makes the Lake Ohrid record a unique continuous, distal record of Italian volcanic activity, which is candidate to become the template for the central Mediterranean tephrostratigraphy, especially for the hitherto poorly known and explored lower Middle Pleistocene period.

Precisely dated multidecadally resolved Asian summer monsoon dynamics 113.5-86.6 thousand years ago

NASA Astrophysics Data System (ADS)

Jiang, Xiuyang; Wang, Xiaoyan; He, Yaoqi; Hu, Hsun-Ming; Li, Zhizhong; Spötl, Christoph; Shen, Chuan-Chou

2016-07-01

We present a new 230Th-dated absolute chronology of Asian summer monsoon (ASM) variability from 113.5 to 86.6 kyr BP (before 1950 AD). This integrated multidecadally resolved record, based on 1435 oxygen isotope data and 46 230Th dates with 2-sigma errors as low as ±0.3 kyr from three stalagmites collected in Sanxing Cave, southwestern China, can be a new reference for calibrating paleoclimate proxy sequences. The Sanxing δ18O record follows the 23 kyr precessional cycle of insolation and is punctuated by prominent millennial-scale oscillations of the Chinese Interstadials (CIS) 25 to 22, corresponding to Greenland Interstadials (GIS) 25 to 22. The onset of CIS 25, 24, 23 and 22 is dated to 113.1 ± 0.4, 108.1 ± 0.3, 103.7 ± 0.3 and 91.4 ± 0.6 kyr BP in the Sanxing record, respectively. The end of CIS 24 and CIS 22 is constrained to 105.5 ± 0.4 and 87.7 ± 0.3 kyr BP, respectively. A centennial-scale precursor event at 104.1 ± 0.3 kyr BP preceding CIS 23 is clearly registered. These events in the Sanxing record are synchronous with those identified in stalagmites from the European Alps (NALPS), except for the onset of GIS 25 and the end of GIS 22, and differ by up to 2.3 kyr from the corresponding ones in Greenland ice core records. The high degree of similarity of the δ18O records between Sanxing Cave and Greenland supports a Northern Hemisphere forcing of the ASM. The anti-phase relationship of δ18O records between Sanxing stalagmites and Antarctic ice cores suggests an additional ASM linkage to the Southern Hemisphere.

27 CFR 24.317 - Sugar record.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Sugar record. 24.317... OF THE TREASURY LIQUORS WINE Records and Reports § 24.317 Sugar record. A proprietor who receives, stores, or uses sugar shall maintain a record of receipt and use. The record will show the date of...

27 CFR 24.317 - Sugar record.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Sugar record. 24.317... OF THE TREASURY LIQUORS WINE Records and Reports § 24.317 Sugar record. A proprietor who receives, stores, or uses sugar shall maintain a record of receipt and use. The record will show the date of...

36 CFR § 1236.22 - What are the additional requirements for managing electronic mail records?

Code of Federal Regulations, 2013 CFR

2013-07-01

... requirements for managing electronic mail records? § 1236.22 Section § 1236.22 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION RECORDS MANAGEMENT ELECTRONIC RECORDS MANAGEMENT... management requirements for electronic mail records: (1) The names of sender and all addressee(s) and date...

27 CFR 24.317 - Sugar record.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Sugar record. 24.317... OF THE TREASURY ALCOHOL WINE Records and Reports § 24.317 Sugar record. A proprietor who receives, stores, or uses sugar shall maintain a record of receipt and use. The record will show the date of...

27 CFR 24.317 - Sugar record.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Sugar record. 24.317... OF THE TREASURY ALCOHOL WINE Records and Reports § 24.317 Sugar record. A proprietor who receives, stores, or uses sugar shall maintain a record of receipt and use. The record will show the date of...

27 CFR 24.317 - Sugar record.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Sugar record. 24.317... OF THE TREASURY LIQUORS WINE Records and Reports § 24.317 Sugar record. A proprietor who receives, stores, or uses sugar shall maintain a record of receipt and use. The record will show the date of...

Late Holocene anthropogenic and climatic influences on the regional vegetation of Mexico's Cuenca Oriental

NASA Astrophysics Data System (ADS)

Bhattacharya, Tripti; Byrne, Roger

2016-03-01

Scholars continue to debate the relative magnitude of pre- and post-Conquest anthropogenic landscape transformation in many regions of Mesoamerica. These debates have important implications for our understanding of the role of anthropogenic practices in the development, or at times degradation, of regional environments. Paleoecological records that provide long-term perspectives on climate change and human land-use patterns are critical to addressing these uncertainties. However, many regions of Mexico including the Cuenca Oriental, a semi-arid basin in the rain shadow of the Sierra Madre Oriental, remain poorly studied. We present a new paleoecological record from sediment cores recovered from Lake Aljojuca, located in the southern part of the basin. Stable isotope analyses of authigenic carbonates provide an independent record of past climate, while pollen and microscopic charcoal provide insights into past vegetation and fire history. The Aljojuca record is one of the only well-dated multi-proxy paleolimnological records from the Cuenca Oriental, and is one of few charcoal studies from highland Mexico. Zea mays pollen and increased fire activity at 2700 calendar years before present (cal yr. BP) suggest Formative period human settlement around the lake. Between 1700 and 800 cal yr BP, a drying climate combined with human uses of fire likely resulted in increases in the extent of xeric scrub vegetation. The Aljojuca record also documents important landscape changes during the historic period ( 430 cal yr. BP-present) likely related to the introduction of invasive species and agricultural intensification. The Aljojuca record provides a unique perspective on human-environment relationships and highlights differences between landscape transformations in the pre- and post-Conquest periods.

Daily Medicine Record for Your Child

MedlinePlus

... Age: ____ 2 years old___ Weight: ___ 30 pounds ___ Daily Medicine Record Child’s name: ___________________ Today’s date: _________________ Age: ____________ Weight: ________________ (pounds) Time Problem ...

27 CFR 24.307 - Nonbeverage wine record.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Nonbeverage wine record..., DEPARTMENT OF THE TREASURY LIQUORS WINE Records and Reports § 24.307 Nonbeverage wine record. A proprietor who produces nonbeverage wine or wine products shall maintain a record by transaction date of such...

27 CFR 24.303 - Formula wine record.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Formula wine record. 24..., DEPARTMENT OF THE TREASURY LIQUORS WINE Records and Reports § 24.303 Formula wine record. A proprietor who produces beverage formula wine shall maintain records showing by transaction date the details of production...

78 FR 15407 - Privacy Act of 1974, as Amended

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-11

... alteration of the system of records entitled Treasury/IRS 34.037, Audit Trail and Security Records. DATES... the Privacy Act system of records entitled Treasury/IRS34.037, Audit Trail and Security Records, to.... TREASURY/IRS 34.037 System name: Audit Trail and Security Records--Treasury/IRS 34.037...

22 CFR 135.42 - Retention and access requirements for records.

Code of Federal Regulations, 2010 CFR

2010-04-01

... otherwise provided, records must be retained for three years from the starting date specified in paragraph... records has been started before the expiration of the 3-year period, the records must be retained until... special arrangements with grantees and subgrantees to retain any records which are continuously needed for...

21 CFR 1403.42 - Retention and access requirements for records.

Code of Federal Regulations, 2010 CFR

2010-04-01

... otherwise provided, records must be retained for three years from the starting date specified in paragraph... records has been started before the expiration of the 3-year period, the records must be retained until... special arrangements with grantees and subgrantees to retain any records which are continuously needed for...

24 CFR 85.42 - Retention and access requirements for records.

Code of Federal Regulations, 2010 CFR

2010-04-01

... otherwise provided, records must be retained for three years from the starting date specified in paragraph... records has been started before the expiration of the 3-year period, the records must be retained until... special arrangements with grantees and subgrantees to retain any records which are continuously needed for...

76 FR 34253 - Exemptions From Certain Prohibited Transaction Restrictions

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-13

... Plan. (b) In the event that the same Independent Fiduciary is appointed to represent the interests of... preceding conditions are not exclusive, and that other circumstances may develop which cause the Independent... Interest as determined by a qualified, independent appraiser, in an updated appraisal on the date of Sale...

77 FR 38482 - Safety Zone; Oswego Independence Celebration Fireworks, Oswego Harbor, Oswego, NY

Federal Register 2010, 2011, 2012, 2013, 2014

2012-06-28

...-AA00 Safety Zone; Oswego Independence Celebration Fireworks, Oswego Harbor, Oswego, NY AGENCY: Coast... Oswego Harbor during the Oswego Independence Celebration Fireworks display. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with a fireworks display. DATES...

77 FR 22326 - Privacy Act of 1974, as Amended by Public Law 100-503; Notice of a Computer Matching Program

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-13

... (OMB). The dates for the matching program will be effective as indicated in ``E. Inclusive Dates of the... Compensation, Pension, Education, and Vocational Rehabilitation and Employment Records--VA (58VA21/22/28... addresses, etc. E. Inclusive Dates of the Matching Program The effective date of the matching agreement and...

77 FR 58393 - Notice of Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-20

... Patient Centered Outcomes Research (PCOR) Pathway to Independence Award (K99/ROC)'' DATES: November 1... Outcomes Research (PCOR) Pathway to Independence Award (K99/R00)'' are to be reviewed and discussed at this...

The evolution of methods for establishing evolutionary timescales

PubMed Central

2016-01-01

The fossil record is well known to be incomplete. Read literally, it provides a distorted view of the history of species divergence and extinction, because different species have different propensities to fossilize, the amount of rock fluctuates over geological timescales, as does the nature of the environments that it preserves. Even so, patterns in the fossil evidence allow us to assess the incompleteness of the fossil record. While the molecular clock can be used to extend the time estimates from fossil species to lineages not represented in the fossil record, fossils are the only source of information concerning absolute (geological) times in molecular dating analysis. We review different ways of incorporating fossil evidence in modern clock dating analyses, including node-calibrations where lineage divergence times are constrained using probability densities and tip-calibrations where fossil species at the tips of the tree are assigned dates from dated rock strata. While node-calibrations are often constructed by a crude assessment of the fossil evidence and thus involves arbitrariness, tip-calibrations may be too sensitive to the prior on divergence times or the branching process and influenced unduly affected by well-known problems of morphological character evolution, such as environmental influence on morphological phenotypes, correlation among traits, and convergent evolution in disparate species. We discuss the utility of time information from fossils in phylogeny estimation and the search for ancestors in the fossil record. This article is part of the themed issue ‘Dating species divergences using rocks and clocks’. PMID:27325838

The evolution of methods for establishing evolutionary timescales.

PubMed

Donoghue, Philip C J; Yang, Ziheng

2016-07-19

The fossil record is well known to be incomplete. Read literally, it provides a distorted view of the history of species divergence and extinction, because different species have different propensities to fossilize, the amount of rock fluctuates over geological timescales, as does the nature of the environments that it preserves. Even so, patterns in the fossil evidence allow us to assess the incompleteness of the fossil record. While the molecular clock can be used to extend the time estimates from fossil species to lineages not represented in the fossil record, fossils are the only source of information concerning absolute (geological) times in molecular dating analysis. We review different ways of incorporating fossil evidence in modern clock dating analyses, including node-calibrations where lineage divergence times are constrained using probability densities and tip-calibrations where fossil species at the tips of the tree are assigned dates from dated rock strata. While node-calibrations are often constructed by a crude assessment of the fossil evidence and thus involves arbitrariness, tip-calibrations may be too sensitive to the prior on divergence times or the branching process and influenced unduly affected by well-known problems of morphological character evolution, such as environmental influence on morphological phenotypes, correlation among traits, and convergent evolution in disparate species. We discuss the utility of time information from fossils in phylogeny estimation and the search for ancestors in the fossil record.This article is part of the themed issue 'Dating species divergences using rocks and clocks'. © 2016 The Authors.

Research on the Solar Eclipse Records in the Wuxingzhi of Both {Han} Dynasties

NASA Astrophysics Data System (ADS)

Li, Y.

2015-09-01

In this paper, we investigate the paper Lianghan Rishi Kao (inspect the solar-eclipse records in Both {Han} dynasties) written by {Zhu Wenxin} when compared the solar-eclipse records with those in the book Zhongguo Gudai Tianxiang Jilu Zong ji (collection of Chinese ancient astronomical records), and find 38 (61) records with the same dates in Western (Eastern) {Han} dynasty, equal to 70% (85%) of total. Our results have 42 (61) with the same dates in Western (Eastern) {Han} dynasty as just 78% (85%) of the total. There are totally 126 solar-eclipse records in the Wuxingzhi of both {Han} Dynasties. We confirm that there are 21 no occurred, 7 invisible in the capital then, 9 occurred before sunrise, 1 after sunset, and the left 88 are seen, occupying 70% as usually occurred in the capital area. With the help of our transformation platform as from Chinese ancient 60-day-cycle style dates to Gregorian calendar dates, we check the date records of solar eclipses in the Wuxingzhi of both {Han} dynasties, and then review the accuracy of the calendar. The standard errors of month and day are respectively 0.31 month (0.17 month) and 0.97 day (0.74 day) in the Western (Eastern) {Han} dynasty. At the same time, the standard errors of solar location of the records are determined, they are 11.08° (6.63°) in Western (Eastern) {Han} dynasty, and after excluding the possible misrecords the accuracy changes to 9.30° (3.59°). If the Juxing (key star of this constellation) was the same in both {Han} dynasties, the average value of observation error of solar location in Eastern {Han} dynasty is 2.8°, far better than 8.2° in Western {Han} dynasty. Otherwise, they most likely appear in some constellations with larger deviation. We try to determine the Δ T (ET-UT) value of solar-eclipse records with the magnitude descriptions, and at the same time, it is concluded that the magnitude of Ji (total eclipse) is 0.969-1.0, Jijin (the sun is covered almost all) is 0.829-0.985, and Bujinrugou (the sun is not covered all and left like a hook) is 0.861-0.926, respectively.

5 CFR 1605.1 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... this date on payment records to report makeup or late contributions or late loan payments. Attributable... makeup or late contribution, the attributable pay date is the “as of” date of the erroneous makeup or late contribution. Breakage means the loss incurred or the gain realized on makeup or late...

75 FR 16516 - Dates Correction

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-01

... NATIONAL ARCHIVES AND RECORDS ADMINISTRATION Office of the Federal Register Dates Correction Correction In the Notices section beginning on page 15401 in the issue of March 29th, 2010, make the following correction: On pages 15401 through 15499, the date at the top of each page is corrected to read...

The Relationship between Social Support and Adolescent Dating Violence: A Comparison across Genders

ERIC Educational Resources Information Center

Richards, Tara N.; Branch, Kathryn A.

2012-01-01

Although much research has focused on the function of social support in adult intimate partner violence, little is known about the role of social support in adolescent dating violence. This study is an exploratory analysis of the independent impact of social support from friends and family on the risk of adolescent dating violence perpetration and…

28 CFR 16.3 - Requirements for making requests.

Code of Federal Regulations, 2011 CFR

2011-07-01

... request should include specific information about each record sought, such as the date, title or name, author, recipient, and subject matter of the record. In addition, if you want records about a court case...

28 CFR 16.3 - Requirements for making requests.

Code of Federal Regulations, 2010 CFR

2010-07-01

... request should include specific information about each record sought, such as the date, title or name, author, recipient, and subject matter of the record. In addition, if you want records about a court case...

Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis

USGS Publications Warehouse

Israde-Alcántara, Isabel; Bischoff, James L.; Domínguez-Vázquez, Gabriela; Li, Hong-Chun; DeCarli, Paul S.; Bunch, Ted E.; Wittke, James H.; Weaver, James C.; Firestone, Richard B.; West, Allen; Kennett, James P.; Mercer, Chris; Xie, Sujing; Richman, Eric K.; Kinzie, Charles R.; Wolbach, Wendy S.

2012-01-01

We report the discovery in Lake Cuitzeo in central Mexico of a black, carbon-rich, lacustrine layer, containing nanodiamonds, microspherules, and other unusual materials that date to the early Younger Dryas and are interpreted to result from an extraterrestrial impact. These proxies were found in a 27-m-long core as part of an interdisciplinary effort to extract a paleoclimate record back through the previous interglacial. Our attention focused early on an anomalous, 10-cm-thick, carbon-rich layer at a depth of 2.8 m that dates to 12.9 ka and coincides with a suite of anomalous coeval environmental and biotic changes independently recognized in other regional lake sequences. Collectively, these changes have produced the most distinctive boundary layer in the late Quaternary record. This layer contains a diverse, abundant assemblage of impact-related markers, including nanodiamonds, carbon spherules, and magnetic spherules with rapid melting/quenching textures, all reaching synchronous peaks immediately beneath a layer containing the largest peak of charcoal in the core. Analyses by multiple methods demonstrate the presence of three allotropes of nanodiamond: n-diamond, i-carbon, and hexagonal nanodiamond (lonsdaleite), in order of estimated relative abundance. This nanodiamond-rich layer is consistent with the Younger Dryas boundary layer found at numerous sites across North America, Greenland, and Western Europe. We have examined multiple hypotheses to account for these observations and find the evidence cannot be explained by any known terrestrial mechanism. It is, however, consistent with the Younger Dryas boundary impact hypothesis postulating a major extraterrestrial impact involving multiple airburst(s) and and/or ground impact(s) at 12.9 ka.

Evidence from Central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis

USGS Publications Warehouse

Israde-Alcántaraa, Isabel; Bischoff, James L.; Domínguez-Vázquez, Gabriela; Li, Hong-Chun; DeCarli, Paul S.; Bunch, Ted E.; Wittke, James H.; Weaver, James C.; Firestone, Richard B.; West, Allen; Kennett, James P.; Mercer, Chris; Xie, Sujing; Richman, Eric K.; Kinzie, Charles R.; Wolbach, Wendy S.; Stanley, Steven M.

2012-01-01

We report the discovery in Lake Cuitzeo in central Mexico of a black, carbon-rich, lacustrine layer, containing nanodiamonds, microspherules, and other unusual materials that date to the early Younger Dryas and are interpreted to result from an extraterrestrial impact. These proxies were found in a 27-m-long core as part of an interdisciplinary effort to extract a paleoclimate record back through the previous interglacial. Our attention focused early on an anomalous, 10-cm-thick, carbon-rich layer at a depth of 2.8 m that dates to 12.9 ka and coincides with a suite of anomalous coeval environmental and biotic changes independently recognized in other regional lake sequences. Collectively, these changes have produced the most distinctive boundary layer in the late Quaternary record. This layer contains a diverse, abundant assemblage of impact-related markers, including nanodiamonds, carbon spherules, and magnetic spherules with rapid melting/quenching textures, all reaching synchronous peaks immediately beneath a layer containing the largest peak of charcoal in the core. Analyses by multiple methods demonstrate the presence of three allotropes of nanodiamond: n-diamond, i-carbon, and hexagonal nanodiamond (lonsdaleite), in order of estimated relative abundance. This nanodiamond-rich layer is consistent with the Younger Dryas boundary layer found at numerous sites across North America, Greenland, and Western Europe. We have examined multiple hypotheses to account for these observations and find the evidence cannot be explained by any known terrestrial mechanism. It is, however, consistent with the Younger Dryas boundary impact hypothesis postulating a major extraterrestrial impact involving multiple airburst(s) and and/or ground impact(s) at 12.9 ka.

Earth’s Rotational Deceleration: Determination of Tidal Friction Independent of Timescales

NASA Astrophysics Data System (ADS)

Deines, Steven D.; Williams, Carol A.

2016-04-01

This paper determines Earth's rotational deceleration without relying on atomic or ephemeris timescales. Earth's rotation defines the civil time standard called Universal Time (UT). Our previous paper did not examine tidal friction in depth when analyzing the timescale divergence between UT and International Atomic Time (TAI). We examine all available paleontological fossils and deposits for the direct measurements of Earth's past rotation rates, because that record includes all contributing effects. We examine paleontological reports that date Earth's rotation rate using corals, bivalves, brachiopods, rhythmites, and stromatolites. Contributions that vary Earth's moment of inertia, such as continental plate drifts, coastline changes, ice age formations, and viscous glacial rebounds, are superimposed with the secular deceleration. The average deceleration of Earth's rotation rate from all available fossil data is found to be (5.969 ± 1.762) × 10-7 rad yr-2. Our value is 99.8% of the total rotational deceleration determined by Christodoulidis et al., who used artificial satellite data, and our value is 96.6% of the expected tidal friction value obtained by Stephenson and Morrison. Taking the derivative of conserved angular momentum, the predicted lunar orbital deceleration caused by the average rotational deceleration corresponds closely to lunar models. When evaluating the significant time gaps between UT and TAI, Earth's rotational deceleration is a minor contributing factor. Also, the secular deceleration rate is necessary to correctly date ancient astronomical events. We strongly encourage that more ocean paleontological evidence be found to supplement the record to separate the many periodic variations embedded in these data.

25 CFR 542.33 - What are the minimum internal control standards for surveillance for Tier B gaming operations?

Code of Federal Regulations, 2011 CFR

2011-04-01

... capability to display the date and time of recorded events on video and/or digital recordings. The displayed... digital record retention. (1) All video recordings and/or digital records of coverage provided by the.... (3) Duly authenticated copies of video recordings and/or digital records shall be provided to the...

25 CFR 542.33 - What are the minimum internal control standards for surveillance for Tier B gaming operations?

Code of Federal Regulations, 2014 CFR

2014-04-01

... capability to display the date and time of recorded events on video and/or digital recordings. The displayed... digital record retention. (1) All video recordings and/or digital records of coverage provided by the.... (3) Duly authenticated copies of video recordings and/or digital records shall be provided to the...

25 CFR 542.33 - What are the minimum internal control standards for surveillance for Tier B gaming operations?

Code of Federal Regulations, 2013 CFR

2013-04-01

... capability to display the date and time of recorded events on video and/or digital recordings. The displayed... digital record retention. (1) All video recordings and/or digital records of coverage provided by the.... (3) Duly authenticated copies of video recordings and/or digital records shall be provided to the...

25 CFR 542.33 - What are the minimum internal control standards for surveillance for Tier B gaming operations?

Code of Federal Regulations, 2010 CFR

2010-04-01

... capability to display the date and time of recorded events on video and/or digital recordings. The displayed... digital record retention. (1) All video recordings and/or digital records of coverage provided by the.... (3) Duly authenticated copies of video recordings and/or digital records shall be provided to the...

25 CFR 542.33 - What are the minimum internal control standards for surveillance for Tier B gaming operations?

Code of Federal Regulations, 2012 CFR

2012-04-01

... capability to display the date and time of recorded events on video and/or digital recordings. The displayed... digital record retention. (1) All video recordings and/or digital records of coverage provided by the.... (3) Duly authenticated copies of video recordings and/or digital records shall be provided to the...

78 FR 57807 - Aged Beneficiary Designation Forms

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-20

... received by the TSP record- keeper not more than one year after date of the participant's signature. DATES... after the date of the participant's signature on the form. Regulatory Flexibility Act I certify that... the participant's signature. * * * * * [FR Doc. 2013-22894 Filed 9-19-13; 8:45 am] BILLING CODE 6760...

37 CFR 360.24 - Compliance with statutory dates.

Code of Federal Regulations, 2014 CFR

2014-07-01

... dates. 360.24 Section 360.24 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF... Digital Audio Recording Devices and Media Royalty Claims § 360.24 Compliance with statutory dates. (a... 5 p.m., and the envelope must be addressed as follows: Copyright Royalty Board, Library of Congress...

37 CFR 360.24 - Compliance with statutory dates.

Code of Federal Regulations, 2012 CFR

2012-07-01

... dates. 360.24 Section 360.24 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF... Digital Audio Recording Devices and Media Royalty Claims § 360.24 Compliance with statutory dates. (a... 5 p.m., and the envelope must be addressed as follows: Copyright Royalty Board, Library of Congress...

37 CFR 360.24 - Compliance with statutory dates.

Code of Federal Regulations, 2011 CFR

2011-07-01

... dates. 360.24 Section 360.24 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF... Digital Audio Recording Devices and Media Royalty Claims § 360.24 Compliance with statutory dates. (a... 5 p.m., and the envelope must be addressed as follows: Copyright Royalty Board, Library of Congress...

37 CFR 360.24 - Compliance with statutory dates.

Code of Federal Regulations, 2013 CFR

2013-07-01

... dates. 360.24 Section 360.24 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF... Digital Audio Recording Devices and Media Royalty Claims § 360.24 Compliance with statutory dates. (a... 5 p.m., and the envelope must be addressed as follows: Copyright Royalty Board, Library of Congress...

37 CFR 360.24 - Compliance with statutory dates.

Code of Federal Regulations, 2010 CFR

2010-07-01

... dates. 360.24 Section 360.24 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF... Digital Audio Recording Devices and Media Royalty Claims § 360.24 Compliance with statutory dates. (a... 5 p.m., and the envelope must be addressed as follows: Copyright Royalty Board, Library of Congress...

16 CFR 682.5 - Effective date.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Effective date. 682.5 Section 682.5 Commercial Practices FEDERAL TRADE COMMISSION THE FAIR CREDIT REPORTING ACT DISPOSAL OF CONSUMER REPORT INFORMATION AND RECORDS § 682.5 Effective date. The rule in this part is effective on June 1, 2005. ...

Dating of palaeomagnetic secular variation in Swedish varved lake sediments using radiocarbon wiggle-matching

NASA Astrophysics Data System (ADS)

Mellström, Anette; Nilsson, Andreas; Stanton, Tania; Muscheler, Raimund; Snowball, Ian

2013-04-01

Well-dated natural archives are crucial when investigating the timing between climate change and climate forcing. Annually laminated (varved) lake sediments, in particular, can provide valuable knowledge about past climatic and environmental conditions as the annual nature of the sediments enables the establishment of high-resolution archives. In addition, lake sediments can record variations in the Earth's magnetic field, which has the potential to be used as a dating validation technique if the palaeo-secular and -intensity curves are dated correctly. If individual and well-defined geomagnetic events can be dated accurately, they can then be used as isochrones, thereby allowing the synchronisation of different records. We therefore aim to date the "f" event, a late Holocene secular variation change, which is recorded in many sites in the northern hemisphere. Varved sites in Sweden have dated the "f" event to ~2700 cal. yrs BP. In order to constrain this date further, we have used the radiocarbon wiggle-matching method on a lake in central west Sweden, Kälksjön (Stanton et al., 2010), whose chronology has previously been validated using a number of complimentary dating methods. With the radiocarbon wiggle-matching technique, closely spaced samples are measured and matched to distinct wiggles in the radiocarbon calibration curve. The advantage of using varve-dated sediments is that it is possible to know the exact number of years between each sample, and therefore improve the initial age model. We compare the wiggle-match results of Kälksjön with results from a newly discovered varved lake sediment sequence in southern Sweden, Gyltigesjön. This comparison can provide information about magnetisation processes in sediments, such as the length of the palaeomagnetic lock-in delay. Stanton, T., Snowball, I., Zillén, L., Wastegård, S., 2010. Validating a Swedish varve chronology using radiocarbon, palaeomagnetic secular variation, lead pollution history and statistical correlation, Quaternary Geochronology 5, 611-624.

17 CFR 160.30 - Procedures to safeguard customer records and information.

Code of Federal Regulations, 2010 CFR

2010-04-01

... customer records and information. 160.30 Section 160.30 Commodity and Securities Exchanges COMMODITY... Date § 160.30 Procedures to safeguard customer records and information. Every futures commission... physical safeguards for the protection of customer records and information. These policies and procedures...

78 FR 5184 - Special Emphasis Panel Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-24

... ``Patient Centered Outcomes Research (PCOR) Pathway to Independence Award (K99/R00)''. DATES: February 12... Outcomes Research (PCOR) Pathway to Independence Award (K99/R00)'' are to be reviewed and discussed at this...

Environmental Change recorded in Lacustrine Sediments from Tangra Yumco, Tibetan Plateau, at 16.5 ka cal BP and during the Younger Dryas Chronozone

NASA Astrophysics Data System (ADS)

Henkel, K.; Ahlborn, M.; Haberzettl, T.; Kasper, T.; Daut, G.; Ju, J.; Ma, Q.; Wang, J.; Zhu, L.; Maeusbacher, R.

2013-12-01

In the purpose of understanding the recent climate change on the Tibetan Plateau (TP) and beyond and to allow predictions for future climate scenarios it is imperative to investigate past climate changes. The numerous lake systems on the TP serve as ideal archives for past hydrological changes, which are assumed to be caused by variations in strength and extent of monsoonal air masses. By now, the spatial and temporal monsoonal evolution on the TP is intensively discussed. With the focus on a W-E lake transect on the southern TP we investigate lakes with a multi-dating and multi-proxy analyses approach, which has already been successfully carried out on Nam Co, the easternmost lake of the transect. In this study, we present results from a ~11.5 m long lacustrine sediment record from the terminal lake Tangra Yumco (4,540 m a.s.l., 31°13'N, 86°43'E), representing the center of the transect. Tangra Yumco is the deepest lake recorded on the TP so far. Via a hydro-acoustic survey observed submerged beach berms (45 m below recent lake level) and exposed lake level terraces up to ~205 m above lake level indicate large lake level fluctuations in the past. The record consists of an interbedding of fine grained silty sediments with a lamination of different thicknesses (sub-mm to cm) and partly intercalated blackish sandy layers. Homogeneous areas, which occur especially in the upper two thirds of the profile, represent turbidite deposits. Until now, color- and greyscale-, magnetic susceptibility- and XRF-scanning were applied. For age control 22 14C AMS-radiocarbon measurements were carried out on bulk organic matter. To determine a possible carbon reservoir effect, additional surface sediment samples were measured as well as one modern aquatic plant. The results indicate a reservoir effect of ~2,120 +110/-90 years. Assuming a constant reservoir effect, the base of the record reveals a corrected radiocarbon age of 17,270 +325/-310 cal BP. The sediment accumulation rate is higher in the older part and changes around ~16,500 cal BP to a lower, constant one. At the same time, shifts in the Ti, K, Rb and Sr values can be observed, pointing to a hydrological change in the system. Regarding Ca and Sr values, a change in the authigenic carbonate production, reflecting a climatic change, coinciding with the timing of the Younger Dryas could be observed. This new record represents a promising archive for paleomonsoonal reconstruction on the TP with a high potential for a broad multi-proxy approach. Further analyses with different independent dating methods (i.e., U/Th, compound specific radiocarbon dating, OSL, magnetostratigraphy) as well as sedimentological (grain size, thin sections), geochemical (CNS, organic geochemistry, isotopes) and micropalaeontological (ostracods) parameters are in progress.

A High-resolution Palaeomagnetic Secular Variation Record from the Chukchi Sea, Arctic Ocean for the Last 4200 Years

NASA Astrophysics Data System (ADS)

West, G.; O'Regan, M.; Jakobsson, M.; Nilsson, A.; Pearce, C.; Snowball, I.; Wiers, S.

2017-12-01

The lack of high-temporal resolution and well-dated palaeomagnetic records from the Arctic Ocean hinders our understanding of geomagnetic field behaviour in the region, and limits the applicability of these records in the development of accurate age models for Arctic Ocean sediments. We present a palaeomagnetic secular variation (PSV) record from a sediment core recovered from the Chukchi Sea, Arctic Ocean during the SWERUS-C3 Leg 2 Expedition. The 8.24-metre-long core was collected at 57 m water depth in the Herald Canyon (72.52° N 175.32° W), and extends to 4200 years BP based on 14 AMS 14C dates and a tephra layer associated with the 3.6 cal ka BP Aniakchak eruption. Palaeomagnetic measurements and magnetic analyses of discrete samples reveal stable characteristic remanent magnetisation directions, and a magnetic mineralogy dominated by magnetite. Centennial to millennial scale declination and inclination features, which correlate well to other Western Arctic records, can be readily identified. The relative palaeointensity record of the core matches well with spherical harmonic field model outputs of pfm9k (Nilsson et al., 2014) and CALS10k.2 (Constable et al. 2016) for the site location. Supported by a robust chronology, the presented high-resolution PSV record can potentially play a key role in constructing a well-dated master chronology for the region.

Atmospheric Visual and Infrared Transmission Deduced from Surface Weather Observations: Weather and Warplanes. V1

DTIC Science & Technology

1976-10-01

record is about 12 years (4]. TablP I lists, Table I RAW9AB FILES FOR GERMANY Dates of Record (mo/yr) Observation Interval Number of Location From To...60 6 12,907 Magdeburg 1/52 12/63 3, 6 22,796 Minster 8/59 11/71 3 32,594 Neubiberg 2/46 1/58 1 104,778 aMaialy daytime observations. - • for...illustration, the RAWDAB files for West and East Germany , including the dates of record, observation interval, and total number of observa- tions for each

21 CFR 226.102 - Master-formula and batch-production records.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 4 2011-04-01 2011-04-01 false Master-formula and batch-production records. 226... Records and Reports § 226.102 Master-formula and batch-production records. (a) For each Type A medicated article(s) master-formula records shall be prepared, endorsed, and dated by a competent and responsible...

21 CFR 226.102 - Master-formula and batch-production records.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 21 Food and Drugs 4 2012-04-01 2012-04-01 false Master-formula and batch-production records. 226... Records and Reports § 226.102 Master-formula and batch-production records. (a) For each Type A medicated article(s) master-formula records shall be prepared, endorsed, and dated by a competent and responsible...

21 CFR 226.102 - Master-formula and batch-production records.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 21 Food and Drugs 4 2013-04-01 2013-04-01 false Master-formula and batch-production records. 226... Records and Reports § 226.102 Master-formula and batch-production records. (a) For each Type A medicated article(s) master-formula records shall be prepared, endorsed, and dated by a competent and responsible...

21 CFR 226.102 - Master-formula and batch-production records.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 4 2014-04-01 2014-04-01 false Master-formula and batch-production records. 226... Records and Reports § 226.102 Master-formula and batch-production records. (a) For each Type A medicated article(s) master-formula records shall be prepared, endorsed, and dated by a competent and responsible...

77 FR 26047 - Agency Information Collection Activities: Submission for OMB Review; Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-02

... Service System (SSS) records. The SSS records contain both classification records and registration cards... information from or copies of SSS records they must provide on forms or letters certain information about the... obtain information from SSS records stored at NARA facilities. Dated: April 26, 2012. Michael L. Wash...

78 FR 41921 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-12

... amended. This system serves as a legal basis for confinement and correctional records. DATES: This...; System of Records AGENCY: Department of the Navy, DoD. ACTION: Notice to alter a System of Records. SUMMARY: The Department of the Navy proposes to alter a system of records, NM01640-1, Individual...

77 FR 61583 - Privacy Act of 1974; System of Records; Correction

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-10

... A0351 AMC, Student/Faculty Records: AMC Schools Systems, as the records had been transferred to the... discovered that the records had not yet been transferred to TRADOC. Therefore, the DOA systems of records notice cannot be deleted at this time. DATES: This correction is effective October 10, 2012. FOR FURTHER...

Completeness and accuracy of the wisconsin immunization registry: an evaluation coinciding with the beginning of meaningful use.

PubMed

Koepke, Ruth; Petit, Ashley B; Ayele, Roman A; Eickhoff, Jens C; Schauer, Stephanie L; Verdon, Matthew J; Hopfensperger, Daniel J; Conway, James H; Davis, Jeffrey P

2015-01-01

Vaccination coverage rates can be improved through the application of complete and accurate immunization information systems (IISs). Evaluate the completeness and accuracy of Wisconsin's IIS, the Wisconsin Immunization Registry (WIR). Cross-sectional evaluation, comparing vaccination medical records (MRs) from provider clinics with WIR records. Medical records of patients born during 2009 were randomly selected from 251 Wisconsin clinics associated with the Vaccines for Children Program. Completeness: percentage of patients with client records in the WIR, percentage of patients up-to-date (%UTD) with the 4:3:1:3:3:1:4 vaccination series, and percentage of patients' MR vaccinations matched by administration date (±10 days) and type to vaccinations documented in the WIR. Accuracy: percentages of matched vaccinations with the same administration date, same trade name (TN), and same lot number. Of the 1863 selected patient MRs, 98% (n = 1833) had WIR client records and 97% of their 30 899 vaccinations were documented in the WIR. The %UTD was 49.3% using the MR only, 76.5% using the WIR only, and 75.2% as estimated by the National Immunization Survey. Among matched vaccinations, 99% had the same administration date, 96% had the same TN, and 95% had the same lot number. Compared with patients from clinics that entered data into the WIR using data exchange from electronic health records, patients from clinics that entered data using the Web-based user interface were less likely to have client records in the WIR (odds ratio: 0.3; 95% confidence interval: 0.1-0.9) and less likely to have accurate TNs (odds ratio: 0.3; 95% confidence interval: 0.1-0.5). The WIR was complete and accurate among this sample of children born during 2009 and provided a vaccination coverage assessment similar to the National Immunization Survey. Our results provide support for the expectation that meaningful use and other initiatives that increase data exchange from electronic health records to IISs will improve IIS data quality.

Evidence of Eta Aquariid outbursts recorded in the classic Maya hieroglyphic script using orbital integrations

NASA Astrophysics Data System (ADS)

Kinsman, J. H.; Asher, D. J.

2017-09-01

No firm evidence has existed that the ancient Maya civilization recorded specific occurrences of meteor showers or outbursts in the corpus of Maya hieroglyphic inscriptions. In fact, there has been no evidence of any pre-Hispanic civilization in the Western Hemisphere recording any observations of any meteor showers on any specific dates. The authors numerically integrated meteoroid-sized particles released by Comet Halley as early as 1404 BC to identify years within the Maya Classic Period, AD 250-909, when Eta Aquariid outbursts might have occurred. Outbursts determined by computer model were then compared to specific events in the Maya record to see if any correlation existed between the date of the event and the date of the outburst. The model was validated by successfully explaining several outbursts around the same epoch in the Chinese record. Some outbursts observed by the Maya were due to recent revolutions of Comet Halley, within a few centuries, and some to resonant behavior in older Halley trails, of the order of a thousand years. Examples were found of several different Jovian mean motion resonances as well as the 1:3 Saturnian resonance that have controlled the dynamical evolution of meteoroids in apparently observed outbursts.

40 CFR 63.7133 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record onsite for at least 2 years after the date of each occurrence, measurement, maintenance, corrective...

40 CFR 63.2183 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective...

40 CFR 63.5590 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record onsite for at least 2 years after the date of each occurrence, measurement, maintenance, corrective...

40 CFR 63.9643 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective...

40 CFR 63.2283 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective...

40 CFR 63.5435 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record onsite for at least 2 years after the date of each occurrence, measurement, maintenance, corrective...

9 CFR 2.75 - Records: Dealers and exhibitors.

Code of Federal Regulations, 2010 CFR

2010-01-01

... AGRICULTURE ANIMAL WELFARE REGULATIONS Records § 2.75 Records: Dealers and exhibitors. (a)(1) Each dealer... breed or type; (B) The sex; (C) The date of birth or approximate age; and (D) The color and any...

37 CFR 102.4 - Requirements for making requests.

Code of Federal Regulations, 2011 CFR

2011-07-01

... sought, such as the date, title or name, author, recipient, and subject matter of the record, and the name and location of the office where the record is located. Also, if records about a court case are...

37 CFR 102.4 - Requirements for making requests.

Code of Federal Regulations, 2010 CFR

2010-07-01

... sought, such as the date, title or name, author, recipient, and subject matter of the record, and the name and location of the office where the record is located. Also, if records about a court case are...

Checklist of flesh flies of Turkey (Diptera, Sarcophagidae)

PubMed Central

Verves, Yury; Barták, Miroslav; Kubík, Štěpán

2018-01-01

Abstract A checklist of 153 flesh fly species (Diptera, Sarcophagidae) recorded to date from Turkey is presented. Updating the list was necessary due to the numerous recent records. Records are listed according to provinces. PMID:29670438

Emergence of ancient cities in relation to geopolitical circumstances and climate change during late Holocene in northeastern Tibetan Plateau, China

NASA Astrophysics Data System (ADS)

Dong, Guanghui; Liu, Honggao; Yang, Yishi; Yang, Ying; Zhou, Aifeng; Wang, Zhongxin; Ren, Xiaoyan; Chen, Fahu

2016-12-01

The study of the history of human activities in ancient cities has provided valuable evidences for understanding the evolution of human-land relations during the late Holocene. Numerous ancient cities were discovered through archaeological surveys of the east Qinghai Province, located on the northeastern border of the Tibetan Plateau, China; however, the mystery of when or why these cities were built remains unsolved. As recorded in this paper, we sampled reliable dating materials from 47 ancient cities in the area, determined their ages by radiocarbon dating, and compared the dating results with historical documents and high resolution paleoclimate records to explore the influencing factors for the development of these ancient cities. The 54 radiocarbon dates indicated that most of these cities were built or repaired during the Han Dynasty (202 BC‒AD 220), Tang Dynasty (AD 618‒AD 907), the Five Dynasties and Ten Kingdoms period (AD 907‒AD 960), the Song dynasty (AD 960‒AD 1279), and the Ming Dynasty (AD 1368‒AD 1644). The radiocarbon dates correspond well with historical records of the area. Our work suggests the ancient cities in east Qinghai Province were likely built primarily for military defense, and may have also have been affected by climate change.

42 CFR 484.48 - Condition of participation: Clinical records.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 42 Public Health 5 2010-10-01 2010-10-01 false Condition of participation: Clinical records. 484....48 Condition of participation: Clinical records. A clinical record containing pertinent past and... information; name of physician; drug, dietary, treatment, and activity orders; signed and dated clinical and...

75 FR 27294 - Privacy Act System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-14

... DEPARTMENT OF COMMERCE [Docket No. 100427198-2060-01] Privacy Act System of Records AGENCY: U.S. Census Bureau, Department of Commerce. ACTION: Notice of amended Privacy Act System of Records: COMMERCE... effective date of a Privacy Act System of Records notice entitled COMMERCE/CENSUS-5, Decennial Census...

First identification of cryptotephra from Kamchatka in a Greenland ice core and new tephra links between distal climate records from Greenland and the northwest Pacific

NASA Astrophysics Data System (ADS)

Cook, E.; Ponomareva, V.; Portnyagin, M.; Bazanova, L.; Svensson, A.; Davies, S. M.

2017-12-01

Our work presents new correlations between cryptotephra deposits found in Greenland ice cores and widespread tephra layers found in terrestrial and marine records in the northern Pacific, providing: 1) a unique opportunity to examine climate records in distal locations and 2) an independent assessment of radiocarbon dates and marine reservoir calculations, using ages derived from Greenland Ice Core Chronology 2005 (GICC05).Low concentrations of tephra grains from two well-known eruptions from northern Pacific Arc volcanoes have been traced in the NGRIP and NEEM ice cores; the first from a Holocene eruption from Khangar volcano in the Kamchatka Peninsula (eastern Russia), and the second from an eruption during the late glacial/interglacial transition (LGIT) from Towada in Japan. Correlations were based on the chronological position of layers and geochemical characterisation by EPMA and LA-ICP-MS to derive major oxide and trace element concentrations. In NGRIP the rhyolitic KHG tephra from Khangar volcano (western Kamchatka) has a GICC05 age of 7950 ± 41 years b2k and is located close to the termination of the 8.2 ka cold event that affected the Northern Hemisphere. KHG is a key terrestrial marker deposit in Kamchatka and is stratigraphically significant as it marks the end of this cold event in Kamchatka in a number of records. This is the first finding of the KHG tephra outside Kamchatka and the first confirmed identification of any Kamchatka tephra in Greenland ice. Additionally, the correlation of a rhyolitic cryptotephra in found in NEEM and NGRIP to a widespread Japanese deposit, Towada To-H (15,706 ± 113 a b2k) represents the first long range tie-point to be established within the LGIT, creating an opportunity help validate local marine reservoir effect calculations of cores containing To-H from the forearc terrace of the Japan Trench. The findings highlight the relevance of locating long-range, low-concentration cryptotephra deposits in well-dated ice cores.

An optimized multi-proxy, multi-site Antarctic ice and gas orbital chronology (AICC2012): 120-800 ka

NASA Astrophysics Data System (ADS)

Bazin, L.; Landais, A.; Lemieux-Dudon, B.; Toyé Mahamadou Kele, H.; Veres, D.; Parrenin, F.; Martinerie, P.; Ritz, C.; Capron, E.; Lipenkov, V.; Loutre, M.-F.; Raynaud, D.; Vinther, B.; Svensson, A.; Rasmussen, S. O.; Severi, M.; Blunier, T.; Leuenberger, M.; Fischer, H.; Masson-Delmotte, V.; Chappellaz, J.; Wolff, E.

2012-11-01

An accurate and coherent chronological framework is essential for the interpretation of climatic and environmental records obtained from deep polar ice cores. Until now, one common ice core age scale has been developed based on an inverse dating method (Datice) combining glaciological modelling with absolute and stratigraphic markers between 4 ice cores covering the last 50 ka (thousand of years before present) (Lemieux-Dudon et al., 2010). In this paper, together with the companion paper of Veres et al. (2012), we present an extension of this work back to 800 ka for the NGRIP, TALDICE, EDML, Vostok and EDC ice cores using an improved version of the Datice tool. The AICC2012 (Antarctic Ice Core Chronology 2012) chronology includes numerous new gas and ice stratigraphic links as well as improved evaluation of background and associated variance scenarios. This paper concentrates on the long timescales between 120-800 ka. In this frame, new measurements of δ18Oatm over Marine Isotope Stage (MIS) 11-12 on EDC and a complete δ18Oatm record of the TALDICE ice cores permit us to derive new orbital gas age constraints. The coherency of the different orbitally deduced ages (from δ18Oatm, δO2/N2 and air content) has been verified before implementation in AICC2012. The new chronology shows only small differences, well within the original uncertainty range, when compared with the previous ice core reference age scale EDC3. For instance, the duration of the last four interglacial periods is not affected by more than 5%. The largest deviation between AICC2012 and EDC3 (4.4 ka) is obtained around MIS 12. Despite significant modifications of the chronological constraints around MIS 5, now independent of speleothem records in AICC2012, the date of Termination II is very close to the EDC3 one.

Geomorphic legacy of medieval Himalayan earthquakes in the Pokhara Valley

NASA Astrophysics Data System (ADS)

Schwanghart, Wolfgang; Bernhardt, Anne; Stolle, Amelie; Hoelzmann, Philipp; Adhikari, Basanta R.; Andermann, Christoff; Tofelde, Stefanie; Merchel, Silke; Rugel, Georg; Fort, Monique; Korup, Oliver

2016-04-01

The Himalayas and their foreland belong to the world's most earthquake-prone regions. With millions of people at risk from severe ground shaking and associated damages, reliable data on the spatial and temporal occurrence of past major earthquakes is urgently needed to inform seismic risk analysis. Beyond the instrumental record such information has been largely based on historical accounts and trench studies. Written records provide evidence for damages and fatalities, yet are difficult to interpret when derived from the far-field. Trench studies, in turn, offer information on rupture histories, lengths and displacements along faults but involve high chronological uncertainties and fail to record earthquakes that do not rupture the surface. Thus, additional and independent information is required for developing reliable earthquake histories. Here, we present exceptionally well-dated evidence of catastrophic valley infill in the Pokhara Valley, Nepal. Bayesian calibration of radiocarbon dates from peat beds, plant macrofossils, and humic silts in fine-grained tributary sediments yields a robust age distribution that matches the timing of nearby M>8 earthquakes in ~1100, 1255, and 1344 AD. The upstream dip of tributary valley fills and X-ray fluorescence spectrometry of their provenance rule out local sediment sources. Instead, geomorphic and sedimentary evidence is consistent with catastrophic fluvial aggradation and debris flows that had plugged several tributaries with tens of meters of calcareous sediment from the Annapurna Massif >60 km away. The landscape-changing consequences of past large Himalayan earthquakes have so far been elusive. Catastrophic aggradation in the wake of two historically documented medieval earthquakes and one inferred from trench studies underscores that Himalayan valley fills should be considered as potential archives of past earthquakes. Such valley fills are pervasive in the Lesser Himalaya though high erosion rates reduce preservation potential. Further studies may wish to seek such remnants of prehistoric earthquakes using extensive sedimentological work as well as numerical age control.

210Pb dating

USGS Publications Warehouse

Swarzenski, Peter W.

2014-01-01

Roughly fifty years ago, a small group of scientists from Belgium and the United States, trying to better constrain ice sheet accumulation rates, attempted to apply what was then know about environmental lead as a potential geochronometer. Thus Goldberg (1963) developed the first principles of the 210Pb dating method, which was soon followed by a paper by Crozaz et al. (1964), who examined accumulation history of Antarctic snow using 210Pb. Shortly thereafter, Koide et al. (1972, 1973) adapted this technique to unravel sediment deposition and accumulation records in deep-sea environments. Serendipitously, they chose to work in a deep basin off California, where an independent and robust age model had already been developed. Krishanswami et al. (1971) extended the use of this technique to lacustrine deposits to reconstruct depositional histories of lake sediment, and maybe more importantly, contaminant inputs and burial. Thus, the powerful tool for dating recent (up to about one century old) sediment deposits was established and soon widely adopted. Today almost all oceanographic or limnologic studies that address recent depositional reconstructions employ 210Pb as one of several possible geochronometers (Andrews et al., 2009; Gale, 2009; Baskaran, 2011; Persson and Helms, 2011). This paper presents a short overview of the principles of 210Pb dating and provides a few examples that illustrate the utility of this tracer in contrasting depositional systems. Potential caveats and uncertainties (Appleby et al., 1986; Binford, 1990; Binford et al., 1993; Smith, 2001; Hancock et al., 2002) inherent to the use and interpretation of 210Pb-derived age-models are also introduced. Recommendations as to best practices for most reliable uses and reporting are presented in the summary.

17. Photocopy of a photograph, source and date unknown GENERAL ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. Photocopy of a photograph, source and date unknown GENERAL VIEW OF FRONT FACADE OF MT. CLARE STATION; PASSENGER CAR SHOP IN REAR - Baltimore & Ohio Railroad, Mount Clare Passenger Car Shop, Southwest corner of Pratt & Poppleton Streets, Baltimore, Independent City, MD

Paleomagnetic evidence for rapid vertical-axis rotation in the Peruvian Cordillera ca. 8 Ma

NASA Astrophysics Data System (ADS)

Rousse, Sonia; Gilder, Stuart; Farber, Daniel; McNulty, Brendan; Torres, Victor R.

2002-01-01

Paleomagnetic results from 31 Neogene sites in the Peruvian Andes yield primary magnetizations, as demonstrated by positive fold and reversal tests. Strata dated as 18 9 Ma record a significant counterclockwise rotation (-11° ± 5°), whereas unconformably overlying younger strata (7 6 Ma) are not rotated. The age of rotation thus is between 9 and 7 Ma, a period that coincides with the widespread Quechua 2 deformation phase. Moreover, eight independent studies on 107 9 Ma rocks from Peru between 9°S and 15°S reveal similar and significant rotations (-15° ± 6°). This suggests that the region rotated during a 2 m.y. period of deformation ca. 8 Ma, when the Andes underwent rapid uplift and important deformation commenced in the Subandean zone.

Reconstructing Past Seasonal to Multicentennial-Scale Variability in the NE Atlantic Ocean Using the Long-Lived Marine Bivalve Mollusk Glycymeris glycymeris

NASA Astrophysics Data System (ADS)

Reynolds, D. J.; Hall, I. R.; Slater, S. M.; Scourse, J. D.; Halloran, P. R.; Sayer, M. D. J.

2017-11-01

The lack of long-term, highly resolved (annual to subannual) and absolutely dated baseline records of marine variability extending beyond the instrumental period (last 50-100 years) hinders our ability to develop a comprehensive understanding of the role the ocean plays in the climate system. Specifically, without such records, it remains difficult to fully quantify the range of natural climate variability mediated by the ocean and to robustly attribute recent changes to anthropogenic or natural drivers. Here we present a 211 year (1799-2010 C.E.; all dates hereafter are Common Era) seawater temperature (SWT) reconstruction from the northeast Atlantic Ocean derived from absolutely dated, annually resolved, oxygen isotope ratios recorded in the shell carbonate (δ18Oshell) of the long-lived marine bivalve mollusk Glycymeris glycymeris. The annual record was calibrated using subannually resolved δ18Oshell values drilled from multiple shells covering the instrumental period. Calibration verification statistics and spatial correlation analyses indicate that the δ18Oshell record contains significant skill at reconstructing Northeast Atlantic Ocean mean summer SWT variability associated with changes in subpolar gyre dynamics and the North Atlantic Current. Reconciling differences between the δ18Oshell data and corresponding growth increment width chronology demonstrates that 68% of the variability in G. glycymeris shell growth can be explained by the combined influence of biological productivity and SWT variability. These data suggest that G. glycymeris can provide seasonal to multicentennial absolutely dated baseline records of past marine variability that will lead to the development of a quantitative understanding of the role the marine environment plays in the global climate system.

40 CFR 63.6012 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

..., measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or...

40 CFR 63.3513 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective...

Computerisation of diabetic clinic records.

PubMed Central

Watkins, G B; Sutcliffe, T; Pyke, D A; Watkins, P J

1980-01-01

A simple system for putting diabetic records on a computer file is achieved by using stationery that combines the usual handwritten records (not computerised) with the minimum of essential data suitable for punching on to computer tape. The record may be brought up to date at a selected time time interval. This simple, cheap system has been in use in a busy clinic for six years. The information on about 8000 diabetics now held in the computer file is used chiefly to help research by creating registers of patients with specified characteristics, such as treatment, heredity complications, and pregnancy. A complete up-to-date index of the entire clinic population is always available, and routine clinic statistics are returned every six months. PMID:7437814

49 CFR 1248.5 - Report forms and date of filing.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 49 Transportation 9 2013-10-01 2013-10-01 false Report forms and date of filing. 1248.5 Section 1248.5 Transportation Other Regulations Relating to Transportation (Continued) SURFACE TRANSPORTATION BOARD, DEPARTMENT OF TRANSPORTATION (CONTINUED) ACCOUNTS, RECORDS AND REPORTS FREIGHT COMMODITY STATISTICS § 1248.5 Report forms and date of filing. ...

Historical changes in lake ice-out dates as indicators of climate change in New England, 1850-2000

USGS Publications Warehouse

Hodgkins, G.A.; James, Ivan; Huntington, T.G.

2002-01-01

Various studies have shown that changes over time in spring ice-out dates can be used as indicators of climate change. Ice-out dates from 29 lakes in New England (USA) with 64 to 163 years of record were assembled and analysed for this study. Ice-out dates have become significantly earlier in New England since the 1800s. Changes in ice-out dates between 1850 and 2000 were 9 days and 16 days in the northern/mountainous and southern regions of New England respectively. The changes in the ice-out data over time were very consistent within each of the two regions of New England, and more consistent than four air-temperature records in each region. The ice-out dates of the two regions had a different response to changes in air temperature. The inferred late winter-early spring air-temperature warming in both regions of New England since 1850, based on linear regression analysis, was about 1.5 ??C. Published in 2002 by John Wiley & Sons, Ltd.

40 CFR 63.11457 - What are the recordkeeping requirements?

Code of Federal Regulations, 2010 CFR

2010-07-01

... calibration and maintenance records. (7) For each bag leak detection system, the records specified in paragraphs (a)(7)(i) through (iii) of this section. (i) Records of the bag leak detection system output; (ii) Records of bag leak detection system adjustments, including the date and time of the adjustment, the...

17 CFR 1.27 - Record of investments.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Record of investments. 1.27... UNDER THE COMMODITY EXCHANGE ACT Customers' Money, Securities, and Property § 1.27 Record of investments... record showing the following: (1) The date on which such investments were made; (2) The name of the...

17 CFR 1.27 - Record of investments.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 17 Commodity and Securities Exchanges 1 2011-04-01 2011-04-01 false Record of investments. 1.27... UNDER THE COMMODITY EXCHANGE ACT Customers' Money, Securities, and Property § 1.27 Record of investments... record showing the following: (1) The date on which such investments were made; (2) The name of the...

76 FR 18738 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-05

... Records in the System: First, middle and last name, nickname, last four digits of Social Security Number..., Accessing, Retaining, and Disposing of Records: Storage: Records are stored on electronic storage media... characteristics (such as name, last four digits of Social Security Number (SSN), series, grade, dates of service...

41 CFR 60-1.12 - Record retention.

Code of Federal Regulations, 2012 CFR

2012-07-01

... individual for a particular position, such as on-line resumes or internal resume databases, records... recordkeeping with respect to internal resume databases, the contractor must maintain a record of each resume added to the database, a record of the date each resume was added to the database, the position for...

41 CFR 60-1.12 - Record retention.

Code of Federal Regulations, 2010 CFR

2010-07-01

... individual for a particular position, such as on-line resumes or internal resume databases, records... recordkeeping with respect to internal resume databases, the contractor must maintain a record of each resume added to the database, a record of the date each resume was added to the database, the position for...

41 CFR 60-1.12 - Record retention.

Code of Federal Regulations, 2011 CFR

2011-07-01

... individual for a particular position, such as on-line resumes or internal resume databases, records... recordkeeping with respect to internal resume databases, the contractor must maintain a record of each resume added to the database, a record of the date each resume was added to the database, the position for...

41 CFR 60-1.12 - Record retention.

Code of Federal Regulations, 2013 CFR

2013-07-01

... individual for a particular position, such as on-line resumes or internal resume databases, records... recordkeeping with respect to internal resume databases, the contractor must maintain a record of each resume added to the database, a record of the date each resume was added to the database, the position for...

41 CFR 128-50.101 - Inventory records.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Inventory records. 128... Seized Personal Property § 128-50.101 Inventory records. Each bureau shall be responsible for establishing and maintaining inventory records of its seized personal property to ensure that: (a) The date the...

78 FR 42074 - Federal Acquisition Regulation; Information Collection; Examination of Records by Comptroller...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-15

...; Information Collection; Examination of Records by Comptroller General and Contract Audit AGENCY: Department of... collection requirement concerning the examination of records by comptroller general and contract audit. DATES... ``Information Collection 9000-0034, Examination of Records by Comptroller General and Contract Audit'' on your...

75 FR 78211 - Privacy Act System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-15

... DEPARTMENT OF COMMERCE [Docket No. 101207607-0607-02] Privacy Act System of Records AGENCY: U.S. Census Bureau, Department of Commerce. ACTION: Notice of amended Privacy Act System of Records: COMMERCE... notice to announce the effective date of a Privacy Act System of Records notice entitled COMMERCE/CENSUS...

77 FR 18205 - Privacy Act System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-27

... DEPARTMENT OF COMMERCE [Docket No. 111115679-2197-02] Privacy Act System of Records AGENCY: U.S. Census Bureau, Department of Commerce. ACTION: Notice of amended Privacy Act System of Records: COMMERCE... Commerce publishes this notice to announce the effective date of a Privacy Act System of Records notice...

40 CFR 750.34 - Record.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Record. 750.34 Section 750.34... Processing and Distribution in Commerce Exemptions § 750.34 Record. (a) No later than the date of proposal of a rule subject to this subpart, a rulemaking record for that rule will be established. It will...

40 CFR 750.34 - Record.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Record. 750.34 Section 750.34... Processing and Distribution in Commerce Exemptions § 750.34 Record. (a) No later than the date of proposal of a rule subject to this subpart, a rulemaking record for that rule will be established. It will...

40 CFR 750.34 - Record.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 31 2011-07-01 2011-07-01 false Record. 750.34 Section 750.34... Processing and Distribution in Commerce Exemptions § 750.34 Record. (a) No later than the date of proposal of a rule subject to this subpart, a rulemaking record for that rule will be established. It will...

FORMAT OF TROPICAL CYCLONE RECORDS ("TCVITALS")

Science.gov Websites

FORMAT OF TROPICAL CYCLONE VITAL STATISTICS RECORDS ("TCVITALS") 8-16-2007 CHARACTER(S - These appear only in records that have been processed by the NCEP tropical cyclone quality control program SYNDAT_QCTROPCY. BOLDFACE - These appear only in NHC records. 1 - Prior to 1999, report date was

Drought as a Catalyst for Early Medieval European Subsistence Crises and Violence

NASA Astrophysics Data System (ADS)

Ludlow, Francis; Cook, Edward; Kostick, Conor; McCormick, Michael

2016-04-01

Tree-ring records provide one of most reliable means of reconstructing past climatic conditions, from longer-term multi-decadal fluctuations in temperature and precipitation to inter-annual variability, including years that experienced extreme weather. When combined with written records of past societal behaviour and the incidence of major societal stresses (e.g., famine, disease, and conflict), such records hold the potential to shed new light on historical interactions between climate and society. Recent years have seen the continued development of long dendroclimatic reconstructions, including, most recently the development of the Old World Drought Atlas (OWDA; Cook et al., 2015) which for the first time makes available a robust reconstruction of spring-summer hydroclimatic conditions and extremes for the greater European region, including the entirety of the Dark Ages. In this paper, we examine the association between hydroclimatic extremes identified in the OWDA and well-dated reports of severe drought in early medieval European annals and chronicles, and find a clear statistical correspondence, further confirming the accuracy of the OWDA and its importance as an independent record of hydroclimatic extremes, a resource that can now be drawn upon in both paleoclimatology and studies of climatic impacts on human society. We proceed to examine the association between hydroclimatic extremes identified in the OWDA and the incidence of a range of major societal stresses (scarcity and famine, epidemic disease, and mass human mortality) drawn from an exhaustive survey of early medieval European annals and chronicles. The outcome of this comparison firmly implicates drought as a significant driver of major societal stresses during early medieval times. Using a record of the violent killings of societal elites recorded on a continuous annual basis in medieval Irish monastic annals, we further examine the role of hydroclimatic extremes as triggers in medieval violence and conflict.

DNR Recorder's Office

Science.gov Websites

Date Search Document Number Search Document Type Search Notice: Inactive UCCs (UCCs that are more than one year past their date of lapse) are purged from the database on an annual schedule. Documents are

The role of guessing and boundaries on date estimation biases.

PubMed

Lee, Peter James; Brown, Norman R

2004-08-01

This study investigates the causes of event-dating biases. Two hundred participants provided knowledge ratings and date estimates for 64 news events. Four independent groups dated the same events under different boundary constraints. Analysis across all responses showed that forward telescoping decreased with boundary age, concurring with the boundary-effects model. With guesses removed from the data set, backward telescoping was greatly reduced, but forward telescoping was unaffected by boundaries. This dissociation indicates that multiple factors (e.g., guessing and reconstructive strategies) are responsible for different dating biases and argue against a boundary explanation of forward telescoping.

The use of Sphagnum cellulose oxygen isotope ratios in ombrotrophic peatlands as a proxy for paleoclimate.

NASA Astrophysics Data System (ADS)

Taylor, M.; Pendall, E.; Jackson, S.; Booth, R. K.; Nichols, J. E.; Huang, Y.

2006-12-01

Developing proxies for discerning paleoclimate that are independent of the pollen record can provide insight into various aspects of climate variability and improve confidence in the interpretation of climate-vegetation interactions. To date, proxies including plant macrofossils, humification indices, testate amoebae, and ratios of n-alkane abundances have been used to infer past climate variability from temperate ombrotrophic peatlands in upper Midwestern North America. These proxies are used to infer past changes in surface-moisture conditions, which in ombrotrophic peatlands is primarily a function of precipitation and temperature. This study investigates the potential uses of stable oxygen isotopes to complement hydrologic proxies. δ18O of surface water and Sphagnum moss cellulose from bogs throughout North America indicates a correlation between average growing season temperatures and δ18O-values. The existence of a modern temperature signal in moss cellulose suggests that δ18O-derived records will not only complement paleohydrological records, but also help assess relative changes in precipitation and temperature. Humification and testate amoebae data from two cores taken from Minden and Irwin Smith Bogs in central and northeastern Michigan have recorded several extreme drought events during the Holocene, including one at 1000 YBP. Comparison of δ18O-values of picked Sphagnum remains to down-core humification and testate amoebae data suggest good temporal correspondence, with the δ18O-values around 1000 YBP indicating a warmer growing season.

40 CFR 63.9818 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... of each occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record onsite for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or record, according to § 63.10(b)(1). You may keep the records offsite for the...

40 CFR 63.4531 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... each occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on-site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or record according to § 63.10(b)(1). You may keep the records off-site for the...

40 CFR 63.2863 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... each occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on-site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or record, in accordance with § 3.10(b)(1). You can keep the records off-site for...

40 CFR 63.9933 - In what form and how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... of each occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or record according to § 63.10(b)(1). You can keep the records off site for the...

12 CFR 404.19 - Request for accounting of record disclosures.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Request for accounting of record disclosures... Access to Records Under the Privacy Act of 1974 § 404.19 Request for accounting of record disclosures. (a... maintain an accurate accounting of the date, nature, and purpose of each external disclosure of a record...

77 FR 77049 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-31

...; System of Records AGENCY: Department of the Air Force, DoD. ACTION: Notice to delete a System of Records. SUMMARY: The Department of the Air Force is deleting a system of records notice in its existing inventory of record systems subject to the Privacy Act of 1974 (5 U.S.C. 552a), as amended. DATES: This...

A high-resolution, 60 kyr record of the relative geomagnetic field intensity from Lake Towuti, Indonesia

NASA Astrophysics Data System (ADS)

Kirana, Kartika Hajar; Bijaksana, Satria; King, John; Tamuntuan, Gerald Hendrik; Russell, James; Ngkoimani, La Ode; Dahrin, Darharta; Fajar, Silvia Jannatul

2018-02-01

Past changes in the Earth's magnetic field can be highlighted through reconstructions of magnetic paleointensity. Many magnetic field variation features are global, and can be used for the detailed correlation and dating of sedimentary records. On the other hand, sedimentary magnetic records also exhibit features on a regional, rather than a global scale. Therefore, the development of regional scale magnetic field reconstructions is necessary to optimize magnetic paleointensity dating. In this paper, a 60 thousand year (kyr) paleointensity record is presented, using the core TOW10-9B of Lake Towuti, located in the island of Sulawesi, Indonesia, as a part of the ongoing research towards understanding the Indonesian environmental history, and reconstructing a high-resolution regional magnetic record from dating the sediments. Located in the East Sulawesi Ophiolite Belt, the bedrock surrounding Lake Towuti consists of ultramafic rocks that render the lake sediments magnetically strong, creating challenges in the reconstruction of the paleointensity record. These sediment samples were subject to a series of magnetic measurements, followed by testing the obtained paleointensity records resulting from normalizing natural remanent magnetization (NRM) against different normalizing parameters. These paleointensity records were then compared to other regional, as well as global, records of magnetic paleointensity. The results show that for the magnetically strong Lake Towuti sediments, an anhysteretic remanent magnetization (ARM) is the best normalizer. A series of magnetic paleointensity excursions are observed during the last 60 kyr, including the Laschamp excursion at 40 kyr BP, that provide new information about the magnetic history and stratigraphy of the western tropical Pacific region. We conclude that the paleointensity record of Lake Towuti is reliable and in accordance with the high-quality regional and global trends.

40 CFR 413.01 - Applicability and compliance dates.

Code of Federal Regulations, 2010 CFR

2010-07-01

... GUIDELINES AND STANDARDS ELECTROPLATING POINT SOURCE CATEGORY General Provisions § 413.01 Applicability and compliance dates. (a) This part shall apply to electroplating operations in which metal is electroplated on..., whether such operations are conducted in conjunction with electroplating, independently, or as part of...

Development and Application of a Paleomagnetic/Geochemical Method for Constraining the Timing of Burial Diagenetic and Fluid

DOE Office of Scientific and Technical Information (OSTI.GOV)

Elmore, Richard D.; Engel, Michael H.

2005-03-10

Studies of diagenesis caused by fluid migration or other events are commonly hindered by a lack of temporal control. Our results to date demonstrate that a paleomagnetic/geochemical approach can be used to date fluid migration as well as burial diagenetic events. Our principal working hypothesis is that burial diagenetic processes (e.g., maturation of organic-rich sediments and clay diagenesis) and the migration of fluids can trigger the authigenesis of magnetic mineral phases. The ages of these events can be constrained by comparing chemical remanent magnetizations (CRMs) to independently established Apparent Polar Wander Paths. While geochemical (e.g. stable isotope and organic analyses)more » and petrographic studies provide important clues for establishing these relationships, the ultimate test of this hypothesis requires the application of independent dating methods to verify the paleomagnetic ages. Towards this end, we have used K-Ar dating of illitization as an alternative method for constraining the ages of magnetic mineral phases in our field areas.« less

Dating previously balanced rocks in seismically active parts of California and Nevada

USGS Publications Warehouse

Bell, J.W.; Brune, J.N.; Liu, T.; Zreda, M.; Yount, J.C.

1998-01-01

Precariously balanced boulders that could be knocked down by strong earthquake ground motion are found in some seismically active areas of southern California and Nevada. In this study we used two independent surface-exposure dating techniques - rock-varnish microlamination and cosmogenic 36Cl dating methodologies - to estimate minimum- and maximum-limiting ages, respectively, of the precarious boulders and by inference the elapsed time since the sites were shaken down. The results of the exposure dating indicate that all of the precarious rocks are >10.5 ka and that some may be significantly older. At Victorville and Jacumba, California, these results show that the precarious rocks have not been knocked down for at least 10.5 k.y., a conclusion in apparent conflict with some commonly used probabilistic seismic hazard maps. At Yucca Mountain, Nevada, the ages of the precarious rocks are >10.5 to >27.0 ka, providing an independent measure of the minimum time elapsed since faulting occurred on the Solitario Canyon fault.

Lake Sediment Records as an Indicator of Holocene Fluctuations of Quelccaya Ice Cap, Peru and Regional Climate

NASA Astrophysics Data System (ADS)

Stroup, J. S.; Kelly, M. A.; Lowell, T. V.; Beal, S. A.; Smith, C. A.; Baranes, H. E.

2012-12-01

The past fluctuations of Quelccaya Ice Cap, (QIC; 13°S, 70°W, 5200 m asl) located in the southeastern Peruvian Andes, provide a record of tropical climate since the last glacial-interglacial transition. A detailed surficial geomorphic record of past glacial extents developed over the last several decades (e.g. Mercer and Palacios 1977; Buffen et al. 2009; Kelly et al. 2012 accepted) demonstrates that QIC is a dynamic glacial system. These records show that the ice cap was larger than present and retreating by ~11,500 yr BP, and smaller than present between ~7,000 and ~4,600 yr BP. The most recent advance occurred during the late Holocene (Little Ice Age;LIA), dated with 10Be surface exposure ages (510±90 yrs (n = 8)) (Stroup et al. in prep.). This overrode earlier deposits obscuring a complete Holocene record; we aim to address the gaps in glacial chronology using the sedimentary record archived in lakes. We retrieved two sets cores (8 and 5 m-long) from Laguna Challpacocha (13.91°S, 70.86°W, 5040 m asl), a lake that currently receives meltwater from QIC. Four radiocarbon ages from the cores suggest a continuous record dating to at least ~10,500 cal. yr BP. Variations in magnetic susceptibility, percent organic and inorganic carbon, bulk density, grayscale and X-ray fluorescence chemistry indicate changes in the amount of clastic sediment deposition. We interpret clastic sediments to have been deposited from ice cap meltwater, thus indicating more extensive ice. Clastic sediments compose the top of the core from 4 to 30 cm depth, below there is a sharp transition to organic sediments radiocarbon dated to (500±30 and 550±20 cal. yr BP). The radiocarbon ages are similar to the 10Be dated (LIA) glacial position. At least three other clastic units exist in the core; dating to ~2600-4300, ~4800-7300 and older then ~10,500 cal. yr BP based on a linear age model with four radiocarbon dates. We obtained two, ~4 m long, cores from Laguna Yanacocha (13.95°S,70.87°W, 4910 m asl), a lake that has not received glacial meltwater since late glacial time. We used the clastic sediment record to determine the input from non-glacial sources, representing ambient climate. This information tests our hypothesis that increased clastic sediment is from a glacial source in the Challpacocha record. The Yanacocha cores are composed primarily of organic-rich sediment with little clastic sediment. Eight radiocarbon ages in stratigraphic order indicate a continuous sedimentation in the lake since 11,240±90 cal. yr BP. Till at the base of the core indicates likely ice recession from the basin at this time. Variations in magnetic susceptibility, percent organic and inorganic carbon, bulk density, and gray scale suggest only minor changes in sedimentation relative to those in the Challpacocha core. Our new continuous lake sediment record provides complementary data to the discontinuous records of QIC Holocene extents as marked by moraines and exposed sections (e.g. Buffen et al. 2009; Thompson et al. 2006). Our record has some similarities with the nearby lacustrine record from Laguna Pacococha, which also receives meltwater from QIC (Rodbell and Seltzer, 2000; Abbott et al., 2003).

40 CFR 63.4931 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

..., measurement, maintenance, corrective action, report, or record. (c) You must keep each record on-site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or...

40 CFR 63.4131 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

..., measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or...

40 CFR 63.4731 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

..., measurement, maintenance, corrective action, report, or record. (c) You must keep each record on-site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or...

40 CFR 63.7753 - In what form and for how long must I keep my records?

Code of Federal Regulations, 2010 CFR

2010-07-01

... following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c..., maintenance, corrective action, report, or record according to the requirements in § 63.10(b)(1). You can keep...

37 CFR 201.9 - Recordation of agreements between copyright owners and public broadcasting entities.

Code of Federal Regulations, 2010 CFR

2010-07-01

... include any schedules, appendixes, or other attachments referred to in the instrument as being part of it... Copyright Office takes place on the date of recordation. After recordation the document is returned to the...

9 CFR 2.76 - Records: Operators of auction sales and brokers.

Code of Federal Regulations, 2010 CFR

2010-01-01

..., DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Records § 2.76 Records: Operators of auction sales and... breed or type of animal; (ii) The sex of the animal; and (iii) The date of birth or approximate age; and...

9 CFR 381.307 - Record review and maintenance.

Code of Federal Regulations, 2014 CFR

2014-01-01

... be identified by production date, container code, processing vessel number or other designation and... review. (b) Automated process monitoring and recordkeeping. Automated process monitoring and... applicable requirements of § 381.306. (c) Container closure records. Written records of all container closure...

9 CFR 381.307 - Record review and maintenance.

Code of Federal Regulations, 2013 CFR

2013-01-01

... be identified by production date, container code, processing vessel number or other designation and... review. (b) Automated process monitoring and recordkeeping. Automated process monitoring and... applicable requirements of § 381.306. (c) Container closure records. Written records of all container closure...

9 CFR 381.307 - Record review and maintenance.

Code of Federal Regulations, 2010 CFR

2010-01-01

... be identified by production date, container code, processing vessel number or other designation and... review. (b) Automated process monitoring and recordkeeping. Automated process monitoring and... applicable requirements of § 381.306. (c) Container closure records. Written records of all container closure...

9 CFR 381.307 - Record review and maintenance.

Code of Federal Regulations, 2011 CFR

2011-01-01

... be identified by production date, container code, processing vessel number or other designation and... review. (b) Automated process monitoring and recordkeeping. Automated process monitoring and... applicable requirements of § 381.306. (c) Container closure records. Written records of all container closure...

9 CFR 381.307 - Record review and maintenance.

Code of Federal Regulations, 2012 CFR

2012-01-01

... be identified by production date, container code, processing vessel number or other designation and... review. (b) Automated process monitoring and recordkeeping. Automated process monitoring and... applicable requirements of § 381.306. (c) Container closure records. Written records of all container closure...

The Microbiology of Olive Mill Wastes

PubMed Central

Ntougias, Spyridon; Bourtzis, Kostas

2013-01-01

Olive mill wastes (OMWs) are high-strength organic effluents, which upon disposal can degrade soil and water quality, negatively affecting aquatic and terrestrial ecosystems. The main purpose of this review paper is to provide an up-to-date knowledge concerning the microbial communities identified over the past 20 years in olive mill wastes using both culture-dependent and independent approaches. A database survey of 16S rRNA gene sequences (585 records in total) obtained from olive mill waste environments revealed the dominance of members of Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Firmicutes, and Actinobacteria. Independent studies confirmed that OMW microbial communities' structure is cultivar dependant. On the other hand, the detection of fecal bacteria and other potential human pathogens in OMWs is of major concern and deserves further examination. Despite the fact that the degradation and detoxification of the olive mill wastes have been mostly investigated through the application of known bacterial and fungal species originated from other environmental sources, the biotechnological potential of indigenous microbiota should be further exploited in respect to olive mill waste bioremediation and inactivation of plant and human pathogens. The implementation of omic and metagenomic approaches will further elucidate disposal issues of olive mill wastes. PMID:24199199

Paleomagnetism of the Pleistocene Tequila Volcanic Field (Western Mexico)

NASA Astrophysics Data System (ADS)

Rodríguez Ceja, M.; Goguitchaichvili, A.; Calvo-Rathert, M.; Morales-Contreras, J.; Alva-Valdivia, L.; Rosas Elguera, J.; Urrutia Fucugauchi, J.; Delgado Granados, H.

2006-10-01

This paper presents new paleomagnetic results from 24 independent cooling units in Tequila area (western Trans-Mexican Volcanic Belt). These units were recently dated by means of state-of-the-art 40Ar-39Ar method (Lewis-Kenedy et al., 2005) and span from 1130 to 150 ka. The characteristic paleodirections are successfully isolated for 20 cooling units. The mean paleodirection, discarding intermediate polarity sites, is I = 29.6°, D = 359.2°, k = 26, α95 = 7.1°, n = 17, which corresponds to the mean paleomagnetic pole position Plat = 85.8°, Plong = 84.3°, K = 27.5, A95 = 6.9°. These directions are practically undistinguishable from the expected Plestocene paleodirections, as derived from reference poles for the North American polar wander curve and in agreement with previously reported directions from western Trans-Mexican Volcanic Belt. This suggests that no major tectonic deformation occurred in studied area since early-middle Plestocene to present. The paleosecular variation is estimated trough the study of the scatter of virtual geomagnetic poles giving SF = 15.4 with SU = 19.9 and SL = 12.5 (upper and lower limits respectively). These values are consistent with those predicted by the latitude-dependent variation model of McFadden et al. (1991) for the last 5 Myr. The interesting feature of the paleomagnetic record obtained here is the occurrence of an intermediate polarity at 671± 13 ka which may correspond the worldwide observed Delta excursion at about 680-690 ka. This gives the volcanic evidence of this event. Two independent lava flows dated as 362± 13 and 354± 5 ka respectively, yield transitional paleodirections as well, probably corresponding to the Levantine excursion.

40 CFR 82.24 - Recordkeeping and reporting requirements for class II controlled substances.

Code of Federal Regulations, 2011 CFR

2011-07-01

... transformation; (v) The date on which the class II controlled substances were imported; (vi) The port of entry.... Customs entry form; (xiv) Dated records documenting the sale or transfer of class II controlled substances... source facility; (vii) The U.S. port of entry for the import, the expected date of shipment and the...

40 CFR 82.24 - Recordkeeping and reporting requirements for class II controlled substances.

Code of Federal Regulations, 2014 CFR

2014-07-01

... transformation; (v) The date on which the class II controlled substances were imported; (vi) The port of entry.... Customs entry form; (xiv) Dated records documenting the sale or transfer of class II controlled substances... source facility; (vii) The U.S. port of entry for the import, the expected date of shipment and the...

Suburban Legend: School Cutoff Dates and the Timing of Births

ERIC Educational Resources Information Center

Dickert-Conlin, Stacy; Elder, Todd

2010-01-01

Many states require children to reach age 5 by a specified date in the calendar year in order to begin kindergarten. We use birth certificate records from 1999 to 2004 to assess whether parents systematically time childbirth before these eligibility cutoff dates to capture the option value of sending their child to school at a relatively young…

29 CFR 4000.21 - What are these rules for determining the filing or issuance date about?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 29 Labor 9 2010-07-01 2010-07-01 false What are these rules for determining the filing or issuance... GUARANTY CORPORATION GENERAL FILING, ISSUANCE, COMPUTATION OF TIME, AND RECORD RETENTION Determining Filing and Issuance Dates § 4000.21 What are these rules for determining the filing or issuance date about...

27 CFR 26.164a - Package gauge record.

Code of Federal Regulations, 2012 CFR

2012-04-01

..., DEPARTMENT OF THE TREASURY LIQUORS LIQUORS AND ARTICLES FROM PUERTO RICO AND THE VIRGIN ISLANDS Records and Reports of Liquors From Puerto Rico § 26.164a Package gauge record. When required in this part, with respect to Puerto Rican spirits, a package gauge record shall be prepared to show: (a) The date prepared...

27 CFR 26.164a - Package gauge record.

Code of Federal Regulations, 2013 CFR

2013-04-01

..., DEPARTMENT OF THE TREASURY ALCOHOL LIQUORS AND ARTICLES FROM PUERTO RICO AND THE VIRGIN ISLANDS Records and Reports of Liquors From Puerto Rico § 26.164a Package gauge record. When required in this part, with respect to Puerto Rican spirits, a package gauge record shall be prepared to show: (a) The date prepared...

27 CFR 26.164a - Package gauge record.

Code of Federal Regulations, 2010 CFR

2010-04-01

..., DEPARTMENT OF THE TREASURY LIQUORS LIQUORS AND ARTICLES FROM PUERTO RICO AND THE VIRGIN ISLANDS Records and Reports of Liquors From Puerto Rico § 26.164a Package gauge record. When required in this part, with respect to Puerto Rican spirits, a package gauge record shall be prepared to show: (a) The date prepared...

27 CFR 26.164a - Package gauge record.

Code of Federal Regulations, 2014 CFR

2014-04-01

..., DEPARTMENT OF THE TREASURY ALCOHOL LIQUORS AND ARTICLES FROM PUERTO RICO AND THE VIRGIN ISLANDS Records and Reports of Liquors From Puerto Rico § 26.164a Package gauge record. When required in this part, with respect to Puerto Rican spirits, a package gauge record shall be prepared to show: (a) The date prepared...

27 CFR 26.164a - Package gauge record.

Code of Federal Regulations, 2011 CFR

2011-04-01

..., DEPARTMENT OF THE TREASURY LIQUORS LIQUORS AND ARTICLES FROM PUERTO RICO AND THE VIRGIN ISLANDS Records and Reports of Liquors From Puerto Rico § 26.164a Package gauge record. When required in this part, with respect to Puerto Rican spirits, a package gauge record shall be prepared to show: (a) The date prepared...

32 CFR 1701.7 - Requests for notification of and access to records.

Code of Federal Regulations, 2012 CFR

2012-07-01

... existence or nonexistence of responsive records (see § 1701.10(c)(iii)). (2) Records in ODNI systems of... neither confirm nor deny the existence or nonexistence of responsive records (see § 1701.10(c)(iii)). (c..., current address, date and place of birth, and citizenship status. Aliens lawfully admitted for permanent...

32 CFR 1701.7 - Requests for notification of and access to records.

Code of Federal Regulations, 2014 CFR

2014-07-01

... existence or nonexistence of responsive records (see § 1701.10(c)(iii)). (2) Records in ODNI systems of... neither confirm nor deny the existence or nonexistence of responsive records (see § 1701.10(c)(iii)). (c..., current address, date and place of birth, and citizenship status. Aliens lawfully admitted for permanent...

32 CFR 1701.7 - Requests for notification of and access to records.

Code of Federal Regulations, 2013 CFR

2013-07-01

... existence or nonexistence of responsive records (see § 1701.10(c)(iii)). (2) Records in ODNI systems of... neither confirm nor deny the existence or nonexistence of responsive records (see § 1701.10(c)(iii)). (c..., current address, date and place of birth, and citizenship status. Aliens lawfully admitted for permanent...

Sound Recordings in the Audiovisual Archives Division of the National Archives. Preliminary Draft.

ERIC Educational Resources Information Center

Bray, Mayfield S.; Waffen, Leslie C.

Some 47,000 sound recordings dating from the turn of the century have been collected in the National Archives. These recordings, consisting of recordings of press conferences, panel discussions, interviews, speeches, court and conference proceedings, entertainment programs, and news broadcasts, are listed in this paper by government agency. The…

37 CFR 3.54 - Effect of recording.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Effect of recording. 3.54... COMMERCE GENERAL ASSIGNMENT, RECORDING AND RIGHTS OF ASSIGNEE Date and Effect of Recording § 3.54 Effect of... validity of the document or the effect that document has on the title to an application, a patent, or a...

77 FR 65416 - Advisory Committee on the Electronic Records Archives (ACERA)

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-26

... Minutes ERA Program Update Business Priorities Presidential Directive on Records Management Online Public Access Discussions: Encouraging development of automated tools for electronic records management, impact of big data, and benchmarking Dated: October 24, 2012. Patrice Little Murray, Acting Committee...

36 CFR 1238.28 - What must agencies do when sending permanent microform records to a records storage facility?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 1232 of this chapter and the additional requirements in this section. (b) Package non-silver copies... security classification, if any; (5) The inclusive dates, names, or other data identifying the records to...

36 CFR 1238.28 - What must agencies do when sending permanent microform records to a records storage facility?

Code of Federal Regulations, 2011 CFR

2011-07-01

... 1232 of this chapter and the additional requirements in this section. (b) Package non-silver copies... security classification, if any; (5) The inclusive dates, names, or other data identifying the records to...

42 CFR 493.1283 - Standard: Test records.

Code of Federal Regulations, 2010 CFR

2010-10-01

... (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Quality System for Nonwaived Testing Analytic Systems § 493.1283 Standard: Test records. (a) The laboratory must maintain an information or record system that includes the following: (1) The positive identification of the specimen. (2) The date and...

A 2000-yr High-resolution Stalagmite Record From Zhenzhu Cave in Hebei, North China: Interpretations of AMS 14C, 230Th/U, 210Pb Dating, and δ18O, δ13C Results

NASA Astrophysics Data System (ADS)

Li, H. C.; Yin, J.; Rao, Z.; Mii, H. S.; Shen, C. C.; Pillutla, R. K.; Li, Y. X.

2016-12-01

An 11.1-cm long stalagmite (ZZ12) collected from Zhenzhu cave (38°15'N, 113°42'E, 975m a.s.l.) located at Tiangui mountain of Hebei province, North China. The 230Th/U dates on 12 horizons exhibit large uncertainties with many reversed age sequences due to low U contents and low 230Th/232Th ratios. While the 230Th/U dating is not able to provide the chronology of this stalagmite, AMS 14C dating on 27 samples from various depths of the stalagmite yields a reliable age-depth relationship. Three AMS 14C dates from the top 5 mm appear nuclear bomb carbon indicating that this part was deposited after AD 1950. Seven samples for 210Pb dating were taken from the upper 14 mm with 2 mm intervals, showing exponential decay of excess 210Pb and supporting the AMS 14C dating results. At the base of the stalagmite, charcoal grains were included in the carbonate stalagmite. This charcoal sample has a Calibrated 14C age of 1865±20 a BP. The carbonates at adjacent depths show Calibrated 14C ages of 1900±15 and 2215±75 a BP respectively. The bomb carbon and similar ages between the charcoal and carbonates indicate that dead carbon influence on the 14C dates in some horizons may not be serious. From the 27 AMS 14C dates, we select 17 AMS 14C dates which have minimal influence of dead carbon fraction to construct the chronology. The established chronology shows that slow growth rates occurred prior to 1100 a BP and after 600 a BP. This time interval involves the Medieval Warm Period, while the fast growth rate during this interval may reflect warm and wet climatic conditions. A total of 835 samples were drilled from the stalagmite for δ18O and δ13C analyses. The current 900-year δ18O and δ13C records reveal climate and vegetation changes in the study area. Strong decadal oscillations in the δ18O record reflect variations of monsoonal rain, with relatively dry between AD 1350 and AD 1550 and after AD 1960. The δ13C record appears mainly multi-centennial variations with a 4‰ fluctuation range and an average value of -8‰ (VPDB). The δ13C values were lighter than the average during AD 1150 1480 and AD 1700 1920, whereas the δ13C values were heavier than the average during AD 1480 1700 and AD 1820 the present. The δ13C record mainly reflects the vegetation change above the cave, with lighter value indicating better vegetation coverage and vice versa.

Factors associated with timing of first outpatient visit after newborn hospital discharge.

PubMed

O'Donnell, Heather C; Trachtman, Rebecca A; Islam, Shahidul; Racine, Andrew D

2014-01-01

To determine factors associated with newborns having their first outpatient visit (FOV) beyond 3 days after postpartum hospital discharge. Retrospective cohort analysis of all newborns born at a large urban university hospital during a 1-year period, discharged home within 96 hours of birth, and with an outpatient visit with an affiliated provider within 60 days after discharge. Of 3282 newborns, 1440 (44%) had their FOV beyond 3 days after discharge. Newborns born to first-time mothers, breast-feeding, at high risk for hyperbilirubinemia, or with a pathological diagnosis were significantly (P < .05) less likely to have FOV beyond 3 days in adjusted multivariable analysis, while newborns born via Caesarian section, of older gestational age, with Medicaid insurance, or discharged on a Thursday or Friday were more likely to have FOV beyond 3 days. Discharging provider characteristics independently associated with FOV beyond 3 days included family medicine providers, providers out of residency longer, and providers practicing at the institution longer. In addition, practice of outpatient follow-up had an independent impact on timing of FOV. Having an appointment date and time recorded on the nursery record or first appointment with a home nurse decreased the odds that time to FOV was beyond 3 days of discharge. Physician decisions regarding timing of outpatient visit after newborn discharge may take into account newborn medical and social characteristics, but certain patient, provider, and practice features associated with this timing may represent unrecognized barriers to care. Copyright © 2014 Academic Pediatric Association. Published by Elsevier Inc. All rights reserved.

Biomarkers to monitor safety in people on art and risk of mortality.

PubMed

Bansi, Loveleen; Gazzard, Brian; Post, Frank; Phillips, Andrew; Johnson, Margaret; Hill, Teresa; Gilson, Richard; Leen, Clifford; Walsh, John; Fisher, Martin; Sabin, Caroline

2012-05-01

Though patients with HIV now have near normal life expectancies as a result of antiretroviral treatment, long-term adverse effects are of growing concern. Using time-updated laboratory measurements, we use several methods to derive a score that can be used to identify individuals at high risk of mortality. Patients who started highly active antiretroviral therapy after 2000 and had ≥1 CD4 count, viral load, and laboratory marker recorded after the date of starting highly active antiretroviral therapy were included in the analyses. Laboratory markers were stratified into quintiles and associations between each marker and mortality was assessed using Poisson regression. The estimates of the final model were used to construct a score for predicting short-term mortality. Several methods, including multiple imputation, were used for analyzing records with missing measurements. Of the 7232 patients included in this analysis, 247 died over 24,796 person-years of follow-up, giving an overall mortality rate of 1.00 (95% confidence interval: 0.87 to 1.12) per 100 person-years. Regardless of which method was used to deal with missing data, albumin, alkaline phosphatase, and hemoglobin were independently associated with mortality. Alanine transaminase was independently associated with mortality when patients with missing measurements were assumed to have measurements within the normal range. The C-statistics for all models ranged from 0.76 to 0.78. Measures of alanine transaminase, albumin, alkaline phosphatase, and hemoglobin in the normal range were predictive of mortality, and hence we suggest using a scoring system to predict mortality which relies on the raw values of these 4 laboratory markers.

25 CFR 542.43 - What are the minimum internal control standards for surveillance for a Tier C gaming operation?

Code of Federal Regulations, 2013 CFR

2013-04-01

... recordings and/or digital records shall be provided to the Commission upon request. (x) Video library log. A... events on video and/or digital recordings. The displayed date and time shall not significantly obstruct... each gaming machine change booth. (w) Video recording and/or digital record retention. (1) All video...

25 CFR 542.43 - What are the minimum internal control standards for surveillance for a Tier C gaming operation?

Code of Federal Regulations, 2012 CFR

2012-04-01

... recordings and/or digital records shall be provided to the Commission upon request. (x) Video library log. A... events on video and/or digital recordings. The displayed date and time shall not significantly obstruct... each gaming machine change booth. (w) Video recording and/or digital record retention. (1) All video...

25 CFR 542.43 - What are the minimum internal control standards for surveillance for a Tier C gaming operation?

Code of Federal Regulations, 2014 CFR

2014-04-01

... recordings and/or digital records shall be provided to the Commission upon request. (x) Video library log. A... events on video and/or digital recordings. The displayed date and time shall not significantly obstruct... each gaming machine change booth. (w) Video recording and/or digital record retention. (1) All video...

Positives and negatives of online dating according to women 50.

PubMed

Vandeweerd, Carla; Myers, Jaime; Coulter, Martha; Yalcin, Ali; Corvin, Jaime

2016-01-01

To understand the positives and negatives of online dating according to the lived experience of older women, telephone interviews were conducted with 45 women ages 50+ who date online. Interviews were audio recorded, transcribed verbatim, and thematically team coded. The opportunity to expand one's social network for both friendships and romantic partners, the ability to control dating risks and pace of relationship formation, and knowing more about one's partner were significant reported benefits of online dating. Dating online also includes unique risks, such as pervasive lying, attempted financial exploitation in the form of scammers, and unwanted electronic sexual aggression.

Climatic records of the last and penultimate deglaciations in the South Atlantic and South Indian Ocean

NASA Astrophysics Data System (ADS)

Michel, Elisabeth; Waelbroeck, Claire; Govin, Aline; Skinner, Luke; Vàzquez Riveiros, Natalia; Dewilde, Fabien; Isguder, Gulay; Rebaubier, Hélène

2013-04-01

Surface and deep-water records of Termination I and II in two twin South Atlantic deep-sea cores (44°09' S, 14°14' W, 3770 m depth) and one South Indian core (46°29' S, 88°01' E, 3420 m depth) are presented. Sea surface temperature has been reconstructed based on planktonic foraminifera census counts in all cases, as well as Mg/Ca of G. bulloides and N. pachyderma s. over the last deglaciation. The uncertainty on reconstructed SST using different statistical methods and different faunal databases is assessed. Over the last deglaciation, combined 14C dating and correlation of the SST record with the air temperature signal recorded in Antarctic ice cores allowed us to correct for variable surface reservoir ages in the South Atlantic core (Skinner et al., 2010). Preliminary dating of the South Indian core over the last termination has been done by correlation of its magnetic signal with those of a neighboring 14C dated core (Smart et al., 2010). We have refined the later age scale using the Atlantic core age scale as reference. Benthic isotopic signals in the South Atlantic and South Indian cores over the last deglaciation exhibit the same amplitude and timing. Our results thus indicate that bottom waters at the South Indian site remained isolated from better ventilated deep waters of northern origin until ~15 ka (Waelbroeck et al., 2011). Over Termination II, the two cores have been dated by correlation of their SST records with the air temperature signal recorded in EDC versus the EDC3 age scale (Govin et al., 2009; 2012). A careful examination of the various sources of uncertainty on the derived dating has been performed. Benthic and planktonic isotopic signals reveal analogies but also differences with respect to the last termination. SST was significantly warmer during the Last Interglacial than during the Holocene in both sites. South Atlantic deep waters were also significantly better ventilated during the Last Interglacial than during the Holocene, whereas bottom water ventilation was similar during these two interglacials at the South Indian site.

Carpenters Gap 1: A 47,000 year old record of indigenous adaption and innovation

NASA Astrophysics Data System (ADS)

Maloney, Tim; O'Connor, Sue; Wood, Rachel; Aplin, Ken; Balme, Jane

2018-07-01

Here we present the first detailed analysis of the archaeological finds from Carpenters Gap 1 rockshelter, one of the oldest radiocarbon dated sites in Australia and one of the few sites in the Sahul region to preserve both plant and animal remains down to the lowest Pleistocene aged deposits. Occupation at the site began between 51,000 and 45,000 cal BP and continued into the Last Glacial Maximum, and throughout the Holocene. While CG1 has featured in several studies, the full complement of 100 radiocarbon dates is presented here for the first time in stratigraphic context, and a Bayesian model is used to evaluate the age sequence. We present analyses of the stone artefact and faunal assemblages from Square A2, the oldest and deepest square excavated. These data depict a remarkable record of adaptation in technology, mobility, and diet breadth spanning 47,000 years. We discuss the dating and settlement record from CG1 and other northern Australian sites within the context of the new dates for occupation of Madjedbebe in Arnhem Land at 65,000 years (±5700), and implications for colonisation and dispersal within Sahul.

Long-term ice phenology records from eastern-central Europe

NASA Astrophysics Data System (ADS)

Takács, Katalin; Kern, Zoltán; Pásztor, László

2018-03-01

A dataset of annual freshwater ice phenology was compiled for the largest river (Danube) and the largest lake (Lake Balaton) in eastern-central Europe, extending regular river and lake ice monitoring data through the use of historical observations and documentary records dating back to AD 1774 and AD 1885, respectively. What becomes clear is that the dates of the first appearance of ice and freeze-up have shifted, arriving 12-30 and 4-13 days later, respectively, per 100 years. Break-up and ice-off have shifted to earlier dates by 7-13 and 9-27 days/100 years, except on Lake Balaton, where the date of break-up has not changed significantly. The datasets represent a resource for (paleo)climatological research thanks to the strong, physically determined link between water and air temperature and the occurrence of freshwater ice phenomena. The derived centennial records of freshwater cryophenology for the Danube and Balaton are readily available for detailed analysis of the temporal trends, large-scale spatial comparison, or other climatological purposes. The derived dataset is publicly available via PANGAEA at https://doi.org/10.1594/PANGAEA.881056.

Uncertainties in the palaeoflood record - interpreting geomorphology since 12 500 BP

NASA Astrophysics Data System (ADS)

Moloney, Jessica; Coulthard, Tom; Freer, Jim; Rogerson, Mike

2017-04-01

Recent floods in the UK have reinvigorated the national debate within academic and non-academic organisations of how we quantify risk and improve the resilience of communities to flooding. One critical aspect of that debate is to better understand and quantify the frequency of extreme floods occurring. The research presented in this study explores the challenges and uncertainties of using longer term palaeoflood data records to improve the quantification of flood risk. The frequency of floods has been studied on short (under 100 years) and long-time (over 200 years) scales. Long term flood frequency records rely on the radiocarbon dating and interpretation of geomorphological evidence within fluvial depositional environments. However, there are limitations with the methods used to do this. Notably, the use of probability distribution functions of fluvial deposits dates does not consider any other information, such as the geomorphological context of material and/ or the type of depositional environment. This study re-analyses 776 radiocarbon dated fluvial deposits from the UK, which have been compiled into a database, to interpret the geomorphological flood record. Initial findings indicate that even this large number of samples may be unsuitable for probabilistic methods and shows an unusual sensitivity to the number of records present in the database.

Birth-date dependent population ethics: critical-level principles.

PubMed

Blackorby, C; Bossert, W; Donaldson, D

1997-12-01

"This paper investigates birth-date dependent principles for social evaluation in an intertemporal framework in which population size may vary. We weaken the strong Pareto principle in order to allow individuals' birth dates to matter in establishing a social ordering. Using the axiom independence of the utilities of the dead, we characterize population principles with a recursive structure. If the individual substitution principle and an individual intertemporal equivalence axiom are added, birth-date dependent generalizations of the critical-level generalized utilitarian principles result. Stationarity leads to the special case of geometric discounting." excerpt

New South Wales Child Development Study (NSW-CDS): an Australian multiagency, multigenerational, longitudinal record linkage study

PubMed Central

Carr, Vaughan J; Harris, Felicity; Raudino, Alessandra; Luo, Luming; Kariuki, Maina; Liu, Enwu; Tzoumakis, Stacy; Smith, Maxwell; Holbrook, Allyson; Bore, Miles; Brinkman, Sally; Lenroot, Rhoshel; Dix, Katherine; Dean, Kimberlie; Laurens, Kristin R; Green, Melissa J

2016-01-01

Purpose The initial aim of this multiagency, multigenerational record linkage study is to identify childhood profiles of developmental vulnerability and resilience, and to identify the determinants of these profiles. The eventual aim is to identify risk and protective factors for later childhood-onset and adolescent-onset mental health problems, and other adverse social outcomes, using subsequent waves of record linkage. The research will assist in informing the development of public policy and intervention guidelines to help prevent or mitigate adverse long-term health and social outcomes. Participants The study comprises a population cohort of 87 026 children in the Australian State of New South Wales (NSW). The cohort was defined by entry into the first year of full-time schooling in NSW in 2009, at which time class teachers completed the Australian Early Development Census (AEDC) on each child (with 99.7% coverage in NSW). The AEDC data have been linked to the children's birth, health, school and child protection records for the period from birth to school entry, and to the health and criminal records of their parents, as well as mortality databases. Findings to date Descriptive data summarising sex, geographic and socioeconomic distributions, and linkage rates for the various administrative databases are presented. Child data are summarised, and the mental health and criminal records data of the children's parents are provided. Future plans In 2015, at age 11 years, a self-report mental health survey was administered to the cohort in collaboration with government, independent and Catholic primary school sectors. A second record linkage, spanning birth to age 11 years, will be undertaken to link this survey data with the aforementioned administrative databases. This will enable a further identification of putative risk and protective factors for adverse mental health and other outcomes in adolescence, which can then be tested in subsequent record linkages. PMID:26868941

Assessing the potential for luminescence dating of basalts

USGS Publications Warehouse

Tsukamoto, S.; Duller, G.A.T.; Wintle, A.G.; Muhs, D.

2011-01-01

The possibility of dating basalt using luminescence was tested on four samples with independent age control from Cima volcanic field, California, with the ultimate aim of assessing whether the technique could be used to date sediments on the surface of Mars. Previous analysis of these samples had demonstrated that the infrared stimulated luminescence (IRSL) signal is most suitable for dating as it showed the lowest fading rate among various luminescence signals. In this study, changes in equivalent dose as a function of preheat are described. The ages for the two youngest Cima samples agree with the independent ages based on cosmogenic nuclide measurements (12.0 ?? 0.8 ka). In the two older samples (dated to 320 and 580 ka by K-Ar), the luminescence behaviour is more complex and the form of the IRSL decay curve is seen to vary with dose. Mathematical fitting is used to isolate two components and their intensities are used to produce dose response curves. The slower component yields a larger equivalent dose. However, even using this component and after correction for fading, the ages obtained for the older samples are younger than the K-Ar ages. ?? 2010 Elsevier B.V.

Early symptom burden predicts recovery after sport-related concussion

PubMed Central

Mannix, Rebekah; Monuteaux, Michael C.; Stein, Cynthia J.; Bachur, Richard G.

2014-01-01

Objective: To identify independent predictors of and use recursive partitioning to develop a multivariate regression tree predicting symptom duration greater than 28 days after a sport-related concussion. Methods: We conducted a prospective cohort study of patients in a sports concussion clinic. Participants completed questionnaires that included the Post-Concussion Symptom Scale (PCSS). Participants were asked to record the date on which they last experienced symptoms. Potential predictor variables included age, sex, score on symptom inventories, history of prior concussions, performance on computerized neurocognitive assessments, loss of consciousness and amnesia at the time of injury, history of prior medical treatment for headaches, history of migraines, and family history of concussion. We used recursive partitioning analysis to develop a multivariate prediction model for identifying athletes at risk for a prolonged recovery from concussion. Results: A total of 531 patients ranged in age from 7 to 26 years (mean 14.6 ± 2.9 years). The mean PCSS score at the initial visit was 26 ± 26; mean time to presentation was 12 ± 5 days. Only total score on symptom inventory was independently associated with symptoms lasting longer than 28 days (adjusted odds ratio 1.044; 95% confidence interval [CI] 1.034, 1.054 for PCSS). No other potential predictor variables were independently associated with symptom duration or useful in developing the optimal regression decision tree. Most participants (86%; 95% CI 80%, 90%) with an initial PCSS score of <13 had resolution of their symptoms within 28 days of injury. Conclusions: The only independent predictor of prolonged symptoms after sport-related concussion is overall symptom burden. PMID:25381296

Early symptom burden predicts recovery after sport-related concussion.

PubMed

Meehan, William P; Mannix, Rebekah; Monuteaux, Michael C; Stein, Cynthia J; Bachur, Richard G

2014-12-09

To identify independent predictors of and use recursive partitioning to develop a multivariate regression tree predicting symptom duration greater than 28 days after a sport-related concussion. We conducted a prospective cohort study of patients in a sports concussion clinic. Participants completed questionnaires that included the Post-Concussion Symptom Scale (PCSS). Participants were asked to record the date on which they last experienced symptoms. Potential predictor variables included age, sex, score on symptom inventories, history of prior concussions, performance on computerized neurocognitive assessments, loss of consciousness and amnesia at the time of injury, history of prior medical treatment for headaches, history of migraines, and family history of concussion. We used recursive partitioning analysis to develop a multivariate prediction model for identifying athletes at risk for a prolonged recovery from concussion. A total of 531 patients ranged in age from 7 to 26 years (mean 14.6 ± 2.9 years). The mean PCSS score at the initial visit was 26 ± 26; mean time to presentation was 12 ± 5 days. Only total score on symptom inventory was independently associated with symptoms lasting longer than 28 days (adjusted odds ratio 1.044; 95% confidence interval [CI] 1.034, 1.054 for PCSS). No other potential predictor variables were independently associated with symptom duration or useful in developing the optimal regression decision tree. Most participants (86%; 95% CI 80%, 90%) with an initial PCSS score of <13 had resolution of their symptoms within 28 days of injury. The only independent predictor of prolonged symptoms after sport-related concussion is overall symptom burden. © 2014 American Academy of Neurology.

Preoperative carcinoembryonic antigen and prognosis of colorectal cancer. An independent prognostic factor still reliable.

PubMed

Li Destri, Giovanni; Rubino, Antonio Salvatore; Latino, Rosalia; Giannone, Fabio; Lanteri, Raffaele; Scilletta, Beniamino; Di Cataldo, Antonio

2015-04-01

To evaluate whether, in a sample of patients radically treated for colorectal carcinoma, the preoperative determination of the carcinoembryonic antigen (p-CEA) may have a prognostic value and constitute an independent risk factor in relation to disease-free survival. The preoperative CEA seems to be related both to the staging of colorectal neoplasia and to the patient's prognosis, although this-to date-has not been conclusively demonstrated and is still a matter of intense debate in the scientific community. This is a retrospective analysis of prospectively collected data. A total of 395 patients were radically treated for colorectal carcinoma. The preoperative CEA was statistically compared with the 2010 American Joint Committee on Cancer (AJCC) staging, the T and N parameters, and grading. All parameters recorded in our database were tested for an association with disease-free survival (DFS). Only factors significantly associated (P < 0.05) with the DFS were used to build multivariate stepwise forward logistic regression models to establish their independent predictors. A statistically significant relationship was found between p-CEA and tumor staging (P < 0.001), T (P < 0.001) and N parameters (P = 0.006). In a multivariate analysis, the independent prognostic factors found were: p-CEA, stages N1 and N2 according to AJCC, and G3 grading (grade). A statistically significant difference (P < 0.001) was evident between the DFS of patients with normal and high p-CEA levels. Preoperative CEA makes a pre-operative selection possible of those patients for whom it is likely to be able to predict a more advanced staging.

Dating of Pliocene Colorado River sediments: implications for cosmogenic burial dating and the evolution of the lower Colorado River

USGS Publications Warehouse

Matmon, Ari; Stock, Greg M.; Granger, Darryl E.; Howard, Keith A.

2011-01-01

We applied cosmogenic 26Al/10Be burial dating to sedimentary deposits of the ancestral Colorado River. We compared cosmogenic burial ages of sediments to the age of an independently well-dated overlying basalt flow at one site, and also applied cosmogenic burial dating to sediments with less precise independent age constraints. All dated gravels yielded old ages that suggest several episodes of sediment burial over the past ∼5.3 m.y. Comparison of burial ages to the overlying 4.4 Ma basalt yielded good agreement and suggests that under the most favorable conditions, cosmogenic burial dating can extend back 4–5 m.y. In contrast, results from other sites with more broadly independent age constraints highlight the complexities inherent in burial dating; these complexities arise from unknown and complicated burial histories, insufficient shielding, postburial production of cosmogenic isotopes by muons, and unknown initial 26Al/10Be ratios. Nevertheless, and in spite of the large range of burial ages and large uncertainties, we identify samples that provide reasonable burial age constraints on the depositional history of sediment along the lower ancestral Colorado River. These samples suggest possible sediment deposition and burial at ca. 5.3, 4.7, and 3.6 Ma. Our calculated basinwide erosion rate for sediment transported by the modern Colorado River (∼187 mm k.y.−1) is higher than the modern erosion rates inferred from the historic sediment load (80–100 mm k.y.−1). In contrast, basinwide paleo-erosion rates calculated from Pliocene sediments are all under 40 mm k.y.−1 The comparatively lower denudation rates calculated for the Pliocene sediment samples are surprising given that the sampled time intervals include significant Pliocene aggradation and may include much incision of the Grand Canyon and its tributaries. This conflict may arise from extensive storage of sediment along the route of the Colorado River, slower paleobedrock erosion, or the inclusion of sediments that were derived preferentially from higher elevations in the watershed.

Dating of Pliocene Colorado River sediments: Implications for cosmogenic burial dating and the evolution of the lower Colorado River

USGS Publications Warehouse

Howard, Keith A.; Matmon, Ari; Stock, Greg M.; Granger, Darryl E.

2017-01-01

We applied cosmogenic 26Al/10Be burial dating to sedimentary deposits of the ancestral Colorado River. We compared cosmogenic burial ages of sediments to the age of an independently well-dated overlying basalt flow at one site, and also applied cosmogenic burial dating to sediments with less precise independent age constraints. All dated gravels yielded old ages that suggest several episodes of sediment burial over the past ∼5.3 m.y. Comparison of burial ages to the overlying 4.4 Ma basalt yielded good agreement and suggests that under the most favorable conditions, cosmogenic burial dating can extend back 4–5 m.y. In contrast, results from other sites with more broadly independent age constraints highlight the complexities inherent in burial dating; these complexities arise from unknown and complicated burial histories, insufficient shielding, postburial production of cosmogenic isotopes by muons, and unknown initial 26Al/10Be ratios. Nevertheless, and in spite of the large range of burial ages and large uncertainties, we identify samples that provide reasonable burial age constraints on the depositional history of sediment along the lower ancestral Colorado River. These samples suggest possible sediment deposition and burial at ca. 5.3, 4.7, and 3.6 Ma.Our calculated basinwide erosion rate for sediment transported by the modern Colorado River (∼187 mm k.y.−1) is higher than the modern erosion rates inferred from the historic sediment load (80–100 mm k.y.−1). In contrast, basinwide paleo-erosion rates calculated from Pliocene sediments are all under 40 mm k.y.−1 The comparatively lower denudation rates calculated for the Pliocene sediment samples are surprising given that the sampled time intervals include significant Pliocene aggradation and may include much incision of the Grand Canyon and its tributaries. This conflict may arise from extensive storage of sediment along the route of the Colorado River, slower paleobedrock erosion, or the inclusion of sediments that were derived preferentially from higher elevations in the watershed.

26 CFR 1.6049-4 - Return of information as to interest paid and original issue discount includible in gross income...

Code of Federal Regulations, 2010 CFR

2010-04-01

... record date reporting under § 1.6049-1(a)(1)(ii)(b)(1) may be used, and if it is used, the original issue... aggregation rules of § 1.6049-1(a)(1)(ii)(b)(2) are being used, the aggregate amount or original issue... record date reporting under § 1.6049-1(a)(1)(ii)(b)(1) may be used, and if it is used, the original issue...

An evaluation of fossil tip-dating versus node-age calibrations in tetraodontiform fishes (Teleostei: Percomorphaceae).

PubMed

Arcila, Dahiana; Alexander Pyron, R; Tyler, James C; Ortí, Guillermo; Betancur-R, Ricardo

2015-01-01

Time-calibrated phylogenies based on molecular data provide a framework for comparative studies. Calibration methods to combine fossil information with molecular phylogenies are, however, under active development, often generating disagreement about the best way to incorporate paleontological data into these analyses. This study provides an empirical comparison of the most widely used approach based on node-dating priors for relaxed clocks implemented in the programs BEAST and MrBayes, with two recently proposed improvements: one using a new fossilized birth-death process model for node dating (implemented in the program DPPDiv), and the other using a total-evidence or tip-dating method (implemented in MrBayes and BEAST). These methods are applied herein to tetraodontiform fishes, a diverse group of living and extinct taxa that features one of the most extensive fossil records among teleosts. Previous estimates of time-calibrated phylogenies of tetraodontiforms using node-dating methods reported disparate estimates for their age of origin, ranging from the late Jurassic to the early Paleocene (ca. 150-59Ma). We analyzed a comprehensive dataset with 16 loci and 210 morphological characters, including 131 taxa (95 extant and 36 fossil species) representing all families of fossil and extant tetraodontiforms, under different molecular clock calibration approaches. Results from node-dating methods produced consistently younger ages than the tip-dating approaches. The older ages inferred by tip dating imply an unlikely early-late Jurassic (ca. 185-119Ma) origin for this order and the existence of extended ghost lineages in their fossil record. Node-based methods, by contrast, produce time estimates that are more consistent with the stratigraphic record, suggesting a late Cretaceous (ca. 86-96Ma) origin. We show that the precision of clade age estimates using tip dating increases with the number of fossils analyzed and with the proximity of fossil taxa to the node under assessment. This study suggests that current implementations of tip dating may overestimate ages of divergence in calibrated phylogenies. It also provides a comprehensive phylogenetic framework for tetraodontiform systematics and future comparative studies. Copyright © 2014 Elsevier Inc. All rights reserved.

78 FR 43193 - Combined Notice of Filings #1

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-19

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Combined Notice of Filings 1 Take notice... wholesale electricity markets in the Northwest Region. Filed Date: 7/1/13. Accession Number: 20130703-0016... Independent System Operator, Inc. Description: 07-10-13 to be effective 1/1/2014. Filed Date: 7/11/13...

75 FR 30018 - Western Electric Coordinating Council; Notice of Institution of Proceeding and Refund Effective Date

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-28

... market energy price cap in the Western Electric Coordinating Council outside the California Independent... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EL10-56-000] Western Electric Coordinating Council; Notice of Institution of Proceeding and Refund Effective Date May 20, 2010...

42 CFR 405.502 - Criteria for determining reasonable charges.

Code of Federal Regulations, 2010 CFR

2010-10-01

... furnished in an effective and economical manner. (2) Nonprovider (independent) dialysis facilities... effective date for a final payment limit may apply to services furnished at least 60 days after the date... in the various localities to ensure that an appropriate mix of areas with high, medium, and low...

77 FR 19019 - Announcement Notice; Establishment of a Federally Funded Research and Development Center

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-29

... small business competitiveness is maintained, and the outline of a transparent award and governance... compete for business, it may interfere with their ability to maintain objectivity and independence for the... business processes and supporting systems and their operations. DATES: Effective Date: This notice is...

78 FR 74175 - Meetings of Humanities Panel

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-10

... Library of Congress, 101 Independence Avenue SE., Washington, DC 20540- 4860. FOR FURTHER INFORMATION... Research Programs. 2. Date: January 14, 2014 Time: 8:30 a.m. to 5:00 p.m. This meeting will discuss applications for the Klug Fellowships grant program, submitted to the division of Research Programs. 3. Date...

77 FR 70159 - New York Independent System Operator, Inc.; Notice Establishing Comment Date To Respond to Motion...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-23

... of Time On November 9, 2012, New York Independent System Operator, Inc. (NYISO) filed a motion requesting a 2-month extension of time (motion), until February 15, 2013, to submit its annual Installed...

77 FR 74840 - Combined Notice of Filings #1

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-18

.... Applicants: Midwest Independent Transmission System Operator, Inc., Northern Indiana Public Service Company. Description: Midwest Independent Transmission System Operator, Inc. submits tariff filing per 35.17(b): 12-10... status of Wasatch Integrated Waste Management District. Filed Date: 12/10/12. Accession Number: 20121210...

10 CFR 73.70 - Records.

Code of Federal Regulations, 2012 CFR

2012-01-01

... copy throughout the required retention period. The record may also be stored in electronic media with..., alarm check, and tamper indication that identifies the type of alarm, location, alarm circuit, date, and...

76 FR 43278 - Privacy Act; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-20

... computer (PC). The Security Management Officer's office remains locked when not in use. RETENTION AND... records to include names, addresses, social security numbers, service computation dates, leave usage data... that resides on a desktop computer. RETRIEVABILITY: Records maintained in file folders are indexed and...

Networked web-cameras monitor congruent seasonal development of birches with phenological field observations

NASA Astrophysics Data System (ADS)

Peltoniemi, Mikko; Aurela, Mika; Böttcher, Kristin; Kolari, Pasi; Loehr, John; Karhu, Jouni; Kubin, Eero; Linkosalmi, Maiju; Melih Tanis, Cemal; Nadir Arslan, Ali

2017-04-01

Ecosystems' potential to provide services, e.g. to sequester carbon is largely driven by the phenological cycle of vegetation. Timing of phenological events is required for understanding and predicting the influence of climate change on ecosystems and to support various analyses of ecosystem functioning. We established a network of cameras for automated monitoring of phenological activity of vegetation in boreal ecosystems of Finland. Cameras were mounted on 14 sites, each site having 1-3 cameras. In this study, we used cameras at 11 of these sites to investigate how well networked cameras detect phenological development of birches (Betula spp.) along the latitudinal gradient. Birches are interesting focal species for the analyses as they are common throughout Finland. In our cameras they often appear in smaller quantities within dominant species in the images. Here, we tested whether small scattered birch image elements allow reliable extraction of color indices and changes therein. We compared automatically derived phenological dates from these birch image elements to visually determined dates from the same image time series, and to independent observations recorded in the phenological monitoring network from the same region. Automatically extracted season start dates based on the change of green color fraction in the spring corresponded well with the visually interpreted start of season, and field observed budburst dates. During the declining season, red color fraction turned out to be superior over green color based indices in predicting leaf yellowing and fall. The latitudinal gradients derived using automated phenological date extraction corresponded well with gradients based on phenological field observations from the same region. We conclude that already small and scattered birch image elements allow reliable extraction of key phenological dates for birch species. Devising cameras for species specific analyses of phenological timing will be useful for explaining variation of time series of satellite based indices, and it will also benefit models describing ecosystem functioning at species or plant functional type level. With the contribution of the LIFE+ financial instrument of the European Union (LIFE12 ENV/FI/000409 Monimet, http://monimet.fmi.fi)

Genetic diversity and phylogeography of broomcorn millet (Panicum miliaceum L.) across Eurasia

PubMed Central

Hunt, Harriet V; Campana, Michael G; Lawes, Matthew C; Park, Yong-Jin; Bower, Mim A; Howe, Christopher J; Jones, Martin K

2011-01-01

Broomcorn millet (Panicum miliaceum L.) is one of the world's oldest cultivated cereals, with several lines of recent evidence indicating that it was grown in northern China from at least 10 000 cal bp. Additionally, a cluster of archaeobotanical records of P. miliaceum dated to at least 7000 cal bp exists in eastern Europe. These two centres of early records could either represent independent domestications or cross-continental movement of this cereal that would predate that of any other crop by some 2 millennia. Here, we analysed genetic diversity among 98 landrace accessions from across Eurasia using 16 microsatellite loci, to explore phylogeographic structure in the Old World range of this historically important crop. The major genetic split in the data divided the accessions into an eastern and a western grouping with an approximate boundary in northwestern China. A substantial number of accessions belonging to the ‘western’ genetic group were also found in northeastern China. Further resolution subdivided the western and eastern genepools into 2 and 4 clusters respectively, each showing clear geographic patterning. The genetic data are consistent with both the single and multiple domestication centre hypotheses and add specific detail to what these hypotheses would entail regarding the spread of broomcorn millet. Discrepancies exist between the predictions from the genetic data and the current archaeobotanical record, highlighting priorities for investigation into early farming in Central Asia. PMID:22004244

Onset of deglacial warming in West Antarctica driven by local orbital forcing.

PubMed

2013-08-22

The cause of warming in the Southern Hemisphere during the most recent deglaciation remains a matter of debate. Hypotheses for a Northern Hemisphere trigger, through oceanic redistributions of heat, are based in part on the abrupt onset of warming seen in East Antarctic ice cores and dated to 18,000 years ago, which is several thousand years after high-latitude Northern Hemisphere summer insolation intensity began increasing from its minimum, approximately 24,000 years ago. An alternative explanation is that local solar insolation changes cause the Southern Hemisphere to warm independently. Here we present results from a new, annually resolved ice-core record from West Antarctica that reconciles these two views. The records show that 18,000 years ago snow accumulation in West Antarctica began increasing, coincident with increasing carbon dioxide concentrations, warming in East Antarctica and cooling in the Northern Hemisphere associated with an abrupt decrease in Atlantic meridional overturning circulation. However, significant warming in West Antarctica began at least 2,000 years earlier. Circum-Antarctic sea-ice decline, driven by increasing local insolation, is the likely cause of this warming. The marine-influenced West Antarctic records suggest a more active role for the Southern Ocean in the onset of deglaciation than is inferred from ice cores in the East Antarctic interior, which are largely isolated from sea-ice changes.

Onset of deglacial warming in West Antarctica driven by local orbital forcing

USGS Publications Warehouse

WAIS Divide Project Members,; Fudge, T. J.; Steig, Eric J.; Markle, Bradley R.; Schoenemann, Spruce W.; Ding, Qinghua; Taylor, Kendrick C.; McConnell, Joseph R.; Brook, Edward J.; Sowers, Todd; White, James W. C.; Alley, Richard B.; Cheng, Hai; Clow, Gary D.; Cole-Dai, Jihong; Conway, Howard; Cuffey, Kurt M.; Edwards, Jon S.; Edwards, R. Lawrence; Edwards, Ross; Fegyveresi, John M.; Ferris, David; Fitzpatrick, Joan J.; Johnson, Jay; Hargreaves, Geoffrey; Lee, James E.; Maselli, Olivia J.; Mason, William; McGwire, Kenneth C.; Mitchell, Logan E.; Mortensen, Nicolai B.; Neff, Peter; Orsi, Anais J.; Popp, Trevor J.; Schauer, Andrew J.; Severinghaus, Jeffrey P.; Sigl, Michael; Spencer, Matthew K.; Vaughn, Bruce H.; Voigt, Donald E.; Waddington, Edwin D.; Wang, Xianfeng; Wong, Gifford J.

2013-01-01

The cause of warming in the Southern Hemisphere during the most recent deglaciation remains a matter of debate. Hypotheses for a Northern Hemisphere trigger, through oceanic redistributions of heat, are based in part on the abrupt onset of warming seen in East Antarctic ice cores and dated to 18,000 years ago, which is several thousand years after high-latitude Northern Hemisphere summer insolation intensity began increasing from its minimum, approximately 24,000 years ago. An alternative explanation is that local solar insolation changes cause the Southern Hemisphere to warm independently. Here we present results from a new, annually resolved ice-core record from West Antarctica that reconciles these two views. The records show that 18,000 years ago snow accumulation in West Antarctica began increasing, coincident with increasing carbon dioxide concentrations, warming in East Antarctica and cooling in the Northern Hemisphere associated with an abrupt decrease in Atlantic meridional overturning circulation. However, significant warming in West Antarctica began at least 2,000 years earlier. Circum-Antarctic sea-ice decline, driven by increasing local insolation, is the likely cause of this warming. The marine-influenced West Antarctic records suggest a more active role for the Southern Ocean in the onset of deglaciation than is inferred from ice cores in the East Antarctic interior, which are largely isolated from sea-ice changes.

Drivers of Inpatient Hospital Experience Using the HCAHPS Survey in a Canadian Setting.

PubMed

Kemp, Kyle A; Chan, Nancy; McCormack, Brandi; Douglas-England, Kathleen

2015-08-01

To identify factors associated with patients' overall rating of inpatient hospital care. Two years of patient interview data (April 1, 2011 to March 31, 2013), linked to inpatient administrative records. Patients rated their overall health on a scale of 0 (worst care) to 10 (best care) using the HCAHPS instrument administered via telephone, up to 42 days postdischarge. Logistic regression was used to generate odds ratios for each independent predictor. HCAHPS data were linked to inpatient records based on health care numbers and dates of service. The outcome (overall health experience) was collapsed into two groups (10 vs. 0-9). Overall hospital experience of 0-9 was associated with younger age, male gender, higher level of education, being born in Canada, urgent admission, not having a family practitioner as the most responsible provider service, and not being discharged home. A length of stay of less than 3 days was protective. The c-statistic for the multivariate model was 0.635. Our results are novel in the Canadian population. Several questions for future research have been generated, in addition to opportunities for quality improvement within our own organization. © Health Research and Educational Trust.

Developing a corpus of spoken language variability

NASA Astrophysics Data System (ADS)

Carmichael, Lesley; Wright, Richard; Wassink, Alicia Beckford

2003-10-01

We are developing a novel, searchable corpus as a research tool for investigating phonetic and phonological phenomena across various speech styles. Five speech styles have been well studied independently in previous work: reduced (casual), careful (hyperarticulated), citation (reading), Lombard effect (speech in noise), and ``motherese'' (child-directed speech). Few studies to date have collected a wide range of styles from a single set of speakers, and fewer yet have provided publicly available corpora. The pilot corpus includes recordings of (1) a set of speakers participating in a variety of tasks designed to elicit the five speech styles, and (2) casual peer conversations and wordlists to illustrate regional vowels. The data include high-quality recordings and time-aligned transcriptions linked to text files that can be queried. Initial measures drawn from the database provide comparison across speech styles along the following acoustic dimensions: MLU (changes in unit duration); relative intra-speaker intensity changes (mean and dynamic range); and intra-speaker pitch values (minimum, maximum, mean, range). The corpus design will allow for a variety of analyses requiring control of demographic and style factors, including hyperarticulation variety, disfluencies, intonation, discourse analysis, and detailed spectral measures.

Changes in El Nino - Southern Oscillation (ENSO) conditions during the Younger Dryas revealed by New Zealand tree-rings.

NASA Astrophysics Data System (ADS)

Palmer, Jonathan; Turney, Chris; Cook, Edward; Fenwick, Pavla; Thomas, Zoë; Helle, Gerhard; Jones, Richard; Clement, Amy; Hogg, Alan; Southon, John; Bronk Ramsey, Christopher; Staff, Richard; Muscheler, Raimund; Corrège, Thierry; Hua, Quan

2017-04-01

The warming trend at the end of the last glacial was disrupted by rapid cooling clearly identified in Greenland (Greenland Stadial 1 or GS-1) and Europe (Younger Dryas Stadial or YD). This reversal to glacial-like conditions is one of the best known examples of abrupt change but the exact timing and global spatial extent remains uncertain. Whilst the wider Atlantic region has a network of high-resolution proxy records spanning the YD, the Pacific Ocean suffers from a scarcity of sub-decadally resolved sequences. Here we report the results from an investigation into a tree-ring chronology from northern New Zealand aimed at addressing the paucity of data. The conifer tree species kauri (Agathis australis) is known from contemporary studies to be sensitive to regional climate changes. An analysis of a 'historic' 452-year kauri chronology confirms a tropical-Pacific teleconnection via the El Niño - Southern Oscillation (ENSO). We then focus our study to a 1010-year subfossil kauri chronology that has been precisely dated by comprehensive radiocarbon dating and contains a striking ring-width downturn between 12,500 to 12,380 cal BP within the YD. Wavelet analysis shows a marked increase in ENSO-like periodicities occurring after the downturn event. Comparison to low- and mid-latitude Pacific records suggests a coherency in the changes to ENSO and Southern Hemisphere westerly airflow during this period. The drivers for this climate event remain unclear but may be related to solar changes that subsequently led to establishment and/or increased expression of ENSO across the mid-latitudes of the Pacific, seemingly independent of the Atlantic and polar regions.

EARTH’S ROTATIONAL DECELERATION: DETERMINATION OF TIDAL FRICTION INDEPENDENT OF TIMESCALES

DOE Office of Scientific and Technical Information (OSTI.GOV)

Deines, Steven D.; Williams, Carol A., E-mail: steven.deines@gmail.com, E-mail: cw@math.usf.edu

This paper determines Earth's rotational deceleration without relying on atomic or ephemeris timescales. Earth's rotation defines the civil time standard called Universal Time (UT). Our previous paper did not examine tidal friction in depth when analyzing the timescale divergence between UT and International Atomic Time (TAI). We examine all available paleontological fossils and deposits for the direct measurements of Earth's past rotation rates, because that record includes all contributing effects. We examine paleontological reports that date Earth's rotation rate using corals, bivalves, brachiopods, rhythmites, and stromatolites. Contributions that vary Earth's moment of inertia, such as continental plate drifts, coastline changes, icemore » age formations, and viscous glacial rebounds, are superimposed with the secular deceleration. The average deceleration of Earth's rotation rate from all available fossil data is found to be (5.969 ± 1.762) × 10{sup −7} rad yr{sup −2}. Our value is 99.8% of the total rotational deceleration determined by Christodoulidis et al., who used artificial satellite data, and our value is 96.6% of the expected tidal friction value obtained by Stephenson and Morrison. Taking the derivative of conserved angular momentum, the predicted lunar orbital deceleration caused by the average rotational deceleration corresponds closely to lunar models. When evaluating the significant time gaps between UT and TAI, Earth's rotational deceleration is a minor contributing factor. Also, the secular deceleration rate is necessary to correctly date ancient astronomical events. We strongly encourage that more ocean paleontological evidence be found to supplement the record to separate the many periodic variations embedded in these data.« less

Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis.

PubMed

Israde-Alcántara, Isabel; Bischoff, James L; Domínguez-Vázquez, Gabriela; Li, Hong-Chun; DeCarli, Paul S; Bunch, Ted E; Wittke, James H; Weaver, James C; Firestone, Richard B; West, Allen; Kennett, James P; Mercer, Chris; Xie, Sujing; Richman, Eric K; Kinzie, Charles R; Wolbach, Wendy S

2012-03-27

We report the discovery in Lake Cuitzeo in central Mexico of a black, carbon-rich, lacustrine layer, containing nanodiamonds, microspherules, and other unusual materials that date to the early Younger Dryas and are interpreted to result from an extraterrestrial impact. These proxies were found in a 27-m-long core as part of an interdisciplinary effort to extract a paleoclimate record back through the previous interglacial. Our attention focused early on an anomalous, 10-cm-thick, carbon-rich layer at a depth of 2.8 m that dates to 12.9 ka and coincides with a suite of anomalous coeval environmental and biotic changes independently recognized in other regional lake sequences. Collectively, these changes have produced the most distinctive boundary layer in the late Quaternary record. This layer contains a diverse, abundant assemblage of impact-related markers, including nanodiamonds, carbon spherules, and magnetic spherules with rapid melting/quenching textures, all reaching synchronous peaks immediately beneath a layer containing the largest peak of charcoal in the core. Analyses by multiple methods demonstrate the presence of three allotropes of nanodiamond: n-diamond, i-carbon, and hexagonal nanodiamond (lonsdaleite), in order of estimated relative abundance. This nanodiamond-rich layer is consistent with the Younger Dryas boundary layer found at numerous sites across North America, Greenland, and Western Europe. We have examined multiple hypotheses to account for these observations and find the evidence cannot be explained by any known terrestrial mechanism. It is, however, consistent with the Younger Dryas boundary impact hypothesis postulating a major extraterrestrial impact involving multiple airburst(s) and and/or ground impact(s) at 12.9 ka.

Toward a Last Interglacial Compilation Using a Tephra-based Chronology: a Future Reference For Model-data Comparison

NASA Astrophysics Data System (ADS)

Bazin, L.; Govin, A.; Capron, E.; Nomade, S.; Lemieux-Dudon, B.; Landais, A.

2017-12-01

The Last Interglacial (LIG, 129-116 ka) is a key period to decipher the interactions between the different components of the climate system under warmer-than-preindustrial conditions. Modelling the LIG climate is now part of the CMIP6/PMIP4 targeted simulations. As a result, recent efforts have been made to propose surface temperature compilations focusing on the spatio-temporal evolution of the LIG climate, and not only on its peak warmth as previously proposed. However, the major limitation of these compilations remains in the climatic alignment of records (e.g. temperature, foraminiferal δ18O) that is performed to define the sites' chronologies. Such methods prevent the proper discussion of phase relationship between the different sites. Thanks to recent developments of the Bayesian Datice dating tool, we are now able to build coherent multi-archive chronologies with a proper propagation of the associated uncertainties. We make the best use of common tephra layers identified in well-dated continental archives and marine sediment cores of the Mediterranean region to propose a coherent chronological framework for the LIG independent of any climatic assumption. We then extend this precise chronological context to the North Atlantic as a first step toward a global coherent compilation of surface temperature and stable isotope records. Based on this synthesis, we propose guidelines for the interpretation of different proxies measured from different archives that will be compared with climate model parameters. Finally, we present time-slices (e.g. 127 ka) of the preliminary regional synthesis of temperature reconstructions and stable isotopes to serve as reference for future model-data comparison of the up-coming CMIP6/PMIP4 LIG simulations.

Changes in El Niño - Southern Oscillation (ENSO) conditions during the Greenland Stadial 1 (GS-1) chronozone revealed by New Zealand tree-rings

NASA Astrophysics Data System (ADS)

Palmer, Jonathan G.; Turney, Chris S. M.; Cook, Edward R.; Fenwick, Pavla; Thomas, Zoë; Helle, Gerhard; Jones, Richard; Clement, Amy; Hogg, Alan; Southon, John; Bronk Ramsey, Christopher; Staff, Richard; Muscheler, Raimund; Corrège, Thierry; Hua, Quan

2016-12-01

The warming trend at the end of the last glacial was disrupted by rapid cooling clearly identified in Greenland (Greenland Stadial 1 or GS-1) and Europe (Younger Dryas Stadial or YD). This reversal to glacial-like conditions is one of the best known examples of abrupt change but the exact timing and global spatial extent remain uncertain. Whilst the wider Atlantic region has a network of high-resolution proxy records spanning GS-1, the Pacific Ocean suffers from a scarcity of sub-decadally resolved sequences. Here we report the results from an investigation into a tree-ring chronology from northern New Zealand aimed at addressing the paucity of data. The conifer tree species kauri (Agathis australis) is known from contemporary studies to be sensitive to regional climate changes. An analysis of a 'historic' 452-year kauri chronology confirms a tropical-Pacific teleconnection via the El Niño - Southern Oscillation (ENSO). We then focus our study on a 1010-year sub-fossil kauri chronology that has been precisely dated by comprehensive radiocarbon dating and contains a striking ring-width downturn between ∼12,500 and 12,380 cal BP within GS-1. Wavelet analysis shows a marked increase in ENSO-like periodicities occurring after the downturn event. Comparison to low- and mid-latitude Pacific records suggests a coherency with ENSO and Southern Hemisphere atmospheric circulation change during this period. The driver(s) for this climate event remain unclear but may be related to solar changes that subsequently led to establishment and/or increased expression of ENSO across the mid-latitudes of the Pacific, seemingly independent of the Atlantic and polar regions.

A greigite-based magnetostratigraphic time frame for the Late Miocene to Recent DSDP Leg 42B cores from the Black Sea

NASA Astrophysics Data System (ADS)

Van Baak, Christiaan; Vasiliev, Iuliana; Palcu, Dan; Dekkers, Mark; Krijgsman, Wout

2016-05-01

Throughout the Late Neogene, the Black Sea experienced large paleoenvironmental changes, switching between (anoxic) marine conditions when connected to the Mediterranean Sea and (oxic) freshwater conditions at times of isolation. We create a magnetostratigraphic time frame for three sites drilled during Deep Sea Drilling Project (DSDP) Leg 42B to the Black Sea (drilled in 1975). At the time, magnetostratigraphic dating was impossible because of the presence of the little understood iron sulfide mineral greigite (in sediments a precursor to pyrite) as magnetic carrier. Our rock-magnetic results indicate that only anoxic conditions result in poor magnetic signal, likely as a result of pyrite formation in the water column rather than in the sediment. The magnetostratigraphic results indicate that Hole 379A, drilled in the basin center, has a continuous sedimentary record dating back to 1.3 Ma. Hole 380/380A is subdivided into three consistent intervals, 0-700 mbsf, 700-860 mbsf and 860-1075 mbsf. The top unit covers the Pleistocene but the magnetostratigraphy is likely compromised by the presence of mass transport deposits. The middle unit spans between 4.3 and 6.1 Ma and records continuous deposition at ~10 cm/kyr. The lower unit lacks the independent age constraints to correlate the obtained magnetostratigraphy. Hole 381 is drilled on the Bosporus slope and as a result, hiatuses are common. A correlation to the nearby Hole 380/380A is proposed, but indicates deposits cannot straightforwardly be traced across the slope. Our improved age model does not support the original interpretation based on these cores of a desiccation of the Black Sea during the Messinian salinity crisis.

41 CFR 60-250.80 - Recordkeeping

Code of Federal Regulations, 2010 CFR

2010-07-01

...,000, the minimum record retention period shall be one year from the date of the making of the record... examination; job advertisements and postings; applications and resumes; tests and test results; interview...

41 CFR 60-300.80 - Recordkeeping.

Code of Federal Regulations, 2010 CFR

2010-07-01

...,000, the minimum record retention period shall be one year from the date of the making of the record... examination; job advertisements and postings; applications and resumes; tests and test results; interview...

8 CFR 103.39 - Historical Records.

Code of Federal Regulations, 2010 CFR

2010-01-01

...; street address; post-office address; date of birth; place of birth; citizenship; sex; marital status..., and in some cases, marriage, military, or police records may also be attached to the visa. (d...

8 CFR 103.39 - Historical Records.

Code of Federal Regulations, 2011 CFR

2011-01-01

...; street address; post-office address; date of birth; place of birth; citizenship; sex; marital status..., and in some cases, marriage, military, or police records may also be attached to the visa. (d...

9 CFR 381.306 - Processing and production records.

Code of Federal Regulations, 2010 CFR

2010-01-01

... recorded by the establishment: Date of production; product name and style; container code; container size... product temperature. (Approved by the Office of Management and Budget under control number 0583-0015) ...

25 CFR 141.34 - Pawnbroker records.

Code of Federal Regulations, 2010 CFR

2010-04-01

... a written record of the following information: (a) Transaction number. (b) Name of pledgor. (c) Address of pledgor. (d) Census number or social security number of pledgor. (e) Date of transaction. (f...

Evolutionary History of the Asian Horned Frogs (Megophryinae): Integrative Approaches to Timetree Dating in the Absence of a Fossil Record.

PubMed

Mahony, Stephen; Foley, Nicole M; Biju, S D; Teeling, Emma C

2017-03-01

Molecular dating studies typically need fossils to calibrate the analyses. Unfortunately, the fossil record is extremely poor or presently nonexistent for many species groups, rendering such dating analysis difficult. One such group is the Asian horned frogs (Megophryinae). Sampling all generic nomina, we combined a novel ∼5 kb dataset composed of four nuclear and three mitochondrial gene fragments to produce a robust phylogeny, with an extensive external morphological study to produce a working taxonomy for the group. Expanding the molecular dataset to include out-groups of fossil-represented ancestral anuran families, we compared the priorless RelTime dating method with the widely used prior-based Bayesian timetree method, MCMCtree, utilizing a novel combination of fossil priors for anuran phylogenetic dating. The phylogeny was then subjected to ancestral phylogeographic analyses, and dating estimates were compared with likely biogeographic vicariant events. Phylogenetic analyses demonstrated that previously proposed systematic hypotheses were incorrect due to the paraphyly of genera. Molecular phylogenetic, morphological, and timetree results support the recognition of Megophryinae as a single genus, Megophrys, with a subgenus level classification. Timetree results using RelTime better corresponded with the known fossil record for the out-group anuran tree. For the priorless in-group, it also outperformed MCMCtree when node date estimates were compared with likely influential historical biogeographic events, providing novel insights into the evolutionary history of this pan-Asian anuran group. Given a relatively small molecular dataset, and limited prior knowledge, this study demonstrates that the computationally rapid RelTime dating tool may outperform more popular and complex prior reliant timetree methodologies. © The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

| CTIO

Science.gov Websites

‹› You are here CTIO Home » About » News » Record-Breaking Image Quality with DECam Post date : 3 years 3 months ago Lunar Eclipse with the Tololo All-Sky CAmera (TASCA) Post date: 3 years 4 months ago DECam's nearby discoveries Post date: 3 years 4 months ago Smashing Results about our Nearby

77 FR 22337 - Privacy Act of 1974; Amendment to an Existing System of Records, Inventory Management System Also...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-13

... or before this period which would result in a contrary determination. Comments Due Date: May 14, 2012... of whether or not the family is or has participated in the Family Self-sufficiency (FSS) program..., middle initial, date of birth, age on effective date of action, sex, relationship to head of household...

176. Photographic copy of original construction drawing dated February 10, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

176. Photographic copy of original construction drawing dated February 10, 1933 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; LOCATION OF THERMOMETER GROUPS. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR

76 FR 33728 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-09

... measures, types of orders, accomplishments, skills and competencies, career preferences, contract.... Education and training: Graduation dates and locations, highest level of education, other education, training and school information including courses and training completion dates. Pay Entitlement and...

174. Photographic copy of original construction drawing dated March 27, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

174. Photographic copy of original construction drawing dated March 27, 1930 (from Record Group 115, Denver Branch of the National Archives, Denver). OWYHEE DAM; UPLIFT PRESSURE PIPES. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR

10 CFR 36.81 - Records and retention periods.

Code of Federal Regulations, 2012 CFR

2012-01-01

... required by § 36.55 until the Commission terminates the license. (f) Records of radiation surveys required by § 36.57 for 3 years from the date of the survey. (g) Records of radiation survey meter...) Records on the design checks required by § 36.39 and the construction control checks as required by § 36...

10 CFR 36.81 - Records and retention periods.

Code of Federal Regulations, 2013 CFR

2013-01-01

... required by § 36.55 until the Commission terminates the license. (f) Records of radiation surveys required by § 36.57 for 3 years from the date of the survey. (g) Records of radiation survey meter...) Records on the design checks required by § 36.39 and the construction control checks as required by § 36...

10 CFR 36.81 - Records and retention periods.

Code of Federal Regulations, 2010 CFR

2010-01-01

... required by § 36.55 until the Commission terminates the license. (f) Records of radiation surveys required by § 36.57 for 3 years from the date of the survey. (g) Records of radiation survey meter...) Records on the design checks required by § 36.39 and the construction control checks as required by § 36...

10 CFR 36.81 - Records and retention periods.

Code of Federal Regulations, 2014 CFR

2014-01-01

... required by § 36.55 until the Commission terminates the license. (f) Records of radiation surveys required by § 36.57 for 3 years from the date of the survey. (g) Records of radiation survey meter...) Records on the design checks required by § 36.39 and the construction control checks as required by § 36...

40 CFR 750.3 - Record.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Record. 750.3 Section 750.3 Protection... Section 6 of the Toxic Substances Control Act § 750.3 Record. (a) No later than the date of proposal of a rule subject to this part, a rulemaking record for that rule shall be established. It shall consist of...

40 CFR 750.3 - Record.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Record. 750.3 Section 750.3 Protection... Section 6 of the Toxic Substances Control Act § 750.3 Record. (a) No later than the date of proposal of a rule subject to this part, a rulemaking record for that rule shall be established. It shall consist of...

40 CFR 750.3 - Record.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 31 2011-07-01 2011-07-01 false Record. 750.3 Section 750.3 Protection... Section 6 of the Toxic Substances Control Act § 750.3 Record. (a) No later than the date of proposal of a rule subject to this part, a rulemaking record for that rule shall be established. It shall consist of...

76 FR 14951 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-18

... inventory of records systems subject to the Privacy Act of 1974, (5 U.S.C. 552a), as amended. DATES: The... INFORMATION: The Department of the Air Force systems of records notices subject to the Privacy Act of 1974, (5....C. 552a(b) of the Privacy Act of 1974, these records contained therein, may specifically be...

36 CFR 1235.14 - May agencies retain records for the conduct of regular agency business after they are eligible...

Code of Federal Regulations, 2010 CFR

2010-07-01

... MANAGEMENT TRANSFER OF RECORDS TO THE NATIONAL ARCHIVES OF THE UNITED STATES General Transfer Requirements... Administration, Modern Records Programs (NWM), 8601 Adelphi Road, College Park, MD 20740-6001, phone number (301... time the records will be needed (if no date is provided by the agency, approved certification requests...

Impacts of climate change on Middle Eastern societies over the last 2700 years: new results from the Gejkar speleothem, Iraq

NASA Astrophysics Data System (ADS)

Flohr, Pascal; Fleitmann, Dominik; Bosomworth, Matt; Cheng, Hai; Sadekov, Aleksey; Matthews, Roger; Matthews, Wendy; Black, Stuart; Edwards, Lawrence

2016-04-01

Climatic and environmental changes are often cited as a major factor for past social, economic, and political changes. This is especially relevant in the semi-arid to arid Middle East, where, however, only few precisely dated, high-resolution climate records are available. Here we present new results from an up to annually resolved stalagmite from Gejkar Cave in the Kurdish Regional Government of Iraq region. Based on Uranium-series dating and annual layer counts, the record dates back ~2700 years, and its annual layer thickness and carbon and oxygen isotope profile appear indicative of precipitation and effective moisture. We also assess if observed decadal to multi-decadal shifts in precipitation are synchronous with socio-economic changes as observed in the archaeological and historical record in the wider Middle East over the last 2000 years, such as the largely prosperous Roman and Byzantine periods, the Seljuq invasion, and the decline of the Ottoman Empire.

Geomagnetic field excursion recorded 17 ka at Tianchi Volcano, China: New 40Ar/39Ar age and significance

NASA Astrophysics Data System (ADS)

Singer, Brad S.; Jicha, Brian R.; He, Huaiyu; Zhu, Rixiang

2014-04-01

New 40Ar/39Ar dating of a comenditic lava atop Tianchi Volcano, China, indicates eruption at 17.1 ± 0.9 ka. The flow interior records a pair of transitional virtual geomagnetic poles and a low paleointensity of ~25 μT. Thus, it records a geomagnetic field excursion that is younger than the 41 ka Laschamp or 32 ka Auckland excursions. Implications are: (1) following a repose of several tens of kyr, Tianchi Volcano became highly active immediately following termination of the last glaciation maximum. The flare-up of silicic eruptions may reflect rapid deglaciation of the edifice. (2) A 17 ka age for the Tianchi excursion provides the first direct radioisotopic evidence that excursional behavior, which is imprecisely dated and less well documented magnetically at several other sites, is a global feature of geodynamo behavior. (3) During the Brunhes chron, 13 well-dated excursions cluster into two periods, including seven between 17 and 212 ka, and six between about 530 and 730 ka.

The earliest known solar eclipse record redated

NASA Astrophysics Data System (ADS)

de Jong, T.; van Soldt, W. H.

1989-03-01

An astronomical event recorded on a clay tablet found in 1948 among the ruins of the acient city of Ugarit, in what is now Syria, was identified 20 years ago as a description of a total solar eclipse that occurred on May 3, 1375 B.C. A new historical dating of the tablet, and mention in the text of the visibility of the planet Mars during the eclipse as well as the month it which it occurred, are used here to show that the recorded eclipse in fact occurred on March 5, 1223 B.C. This new date implies that the secular deceleration of the earth's rotation has changed very little during the past 3000 years.

40 CFR 92.708 - Records and reports.

Code of Federal Regulations, 2010 CFR

2010-07-01

...) CONTROL OF AIR POLLUTION FROM LOCOMOTIVES AND LOCOMOTIVE ENGINES Recall Regulations § 92.708 Records and... conduct a continuing analysis of the adequacy of the recall campaign. The records shall include, for each...) Recall campaign number as designated by the manufacturer or remanufacturer. (2) Date owner notification...

77 FR 23765 - Privacy Act; Termination of Three Systems of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-20

... terminating the following Systems of Records: MSPB/Internal 5, ``Workload and Assignment Tracking System... Tracking System.'' They are no longer in use. DATES: Effective April 6, 2012. FOR FURTHER INFORMATION... systems of records: MSPB/Internal 5, ``Workload and Assignment Tracking System;'' MSPB/Internal 7...

78 FR 73515 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-06

... service personnel. DATES: This proposed action will be effective on January 6, 2014 unless comments are... concerning the appointment of trustees for mentally incompetent service members. Records include name, Social... electronic storage media.'' Retrievability: Delete entry and replace with ``Name, record number, year of...

78 FR 21045 - Adaptation of Regulations to Incorporate Swaps-Records of Transactions; Correction

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-09

... COMMODITY FUTURES TRADING COMMISSION 17 CFR Part 1 RIN 3038-AD53 Adaptation of Regulations to Incorporate Swaps--Records of Transactions; Correction AGENCY: Commodity Futures Trading Commission. ACTION...), regarding Adaptation of Regulations to Incorporate Swaps--Records of Transactions. DATES: This correction to...

27 CFR 19.724 - Records of redistillation.

Code of Federal Regulations, 2011 CFR

2011-04-01

..., a proprietor must record in a separate record the following information for spirits and fuel alcohol received at the alcohol fuel plant for redistillation: (1) Date of receipt; (2) Identification as spirits or fuel alcohol; (3) Quantity received; (4) From whom received; (5) Reason for redistillation; (6...

77 FR 18205 - Privacy Act System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-27

... DEPARTMENT OF COMMERCE [Docket No. 111115678-2197-02] Privacy Act System of Records AGENCY: U.S. Census Bureau, Department of Commerce. ACTION: Notice of amended Privacy Act System of Records: COMMERCE... the Department of Commerce publishes this notice to announce the effective date of an amended Privacy...

Public Records as a Source of Employment Information.

ERIC Educational Resources Information Center

Cohen, Harvey S.

1978-01-01

Although public records are an ethical source of employee screening information, restrictions placed on employers by the many state, local, and federal regulations and laws require new ways of getting this information. Particularly important is verifying dates and criminal records. Some problems and solutions are given. (MF)

78 FR 14297 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-05

... name, address, phone number, birth date, and Social Security Number (SSN).'' Authority for maintenance... storage media.'' * * * * * System manager(s) and address: Delete entry and replace with ``Chief of... signature as a means of proving the identity of the individual requesting access to the records.'' Record...

Coherent Optical Memory with High Storage Efficiency and Large Fractional Delay

NASA Astrophysics Data System (ADS)

Chen, Yi-Hsin; Lee, Meng-Jung; Wang, I.-Chung; Du, Shengwang; Chen, Yong-Fan; Chen, Ying-Cheng; Yu, Ite A.

2013-02-01

A high-storage efficiency and long-lived quantum memory for photons is an essential component in long-distance quantum communication and optical quantum computation. Here, we report a 78% storage efficiency of light pulses in a cold atomic medium based on the effect of electromagnetically induced transparency. At 50% storage efficiency, we obtain a fractional delay of 74, which is the best up-to-date record. The classical fidelity of the recalled pulse is better than 90% and nearly independent of the storage time, as confirmed by the direct measurement of phase evolution of the output light pulse with a beat-note interferometer. Such excellent phase coherence between the stored and recalled light pulses suggests that the current result may be readily applied to single photon wave packets. Our work significantly advances the technology of electromagnetically induced transparency-based optical memory and may find practical applications in long-distance quantum communication and optical quantum computation.

Coherent optical memory with high storage efficiency and large fractional delay.

PubMed

Chen, Yi-Hsin; Lee, Meng-Jung; Wang, I-Chung; Du, Shengwang; Chen, Yong-Fan; Chen, Ying-Cheng; Yu, Ite A

2013-02-22

A high-storage efficiency and long-lived quantum memory for photons is an essential component in long-distance quantum communication and optical quantum computation. Here, we report a 78% storage efficiency of light pulses in a cold atomic medium based on the effect of electromagnetically induced transparency. At 50% storage efficiency, we obtain a fractional delay of 74, which is the best up-to-date record. The classical fidelity of the recalled pulse is better than 90% and nearly independent of the storage time, as confirmed by the direct measurement of phase evolution of the output light pulse with a beat-note interferometer. Such excellent phase coherence between the stored and recalled light pulses suggests that the current result may be readily applied to single photon wave packets. Our work significantly advances the technology of electromagnetically induced transparency-based optical memory and may find practical applications in long-distance quantum communication and optical quantum computation.

Multi-disciplinary dating of a baked clay kiln excavated at Chieri, Northern Italy

NASA Astrophysics Data System (ADS)

Tema, Evdokia; Fantino, Fulvio; Ferrara, Enzo; Lo Giudice, Alessandro; Re, Alessandro; Barello, Federico; Vella, Silvia; Cirillo, Luigi; Gulmini, Monica

2014-05-01

A combined archaeological, archaeomagnetic and thermoluminescence study has been carried out on a rescue excavation kiln, discovered at Chieri, Northern Italy. Rock magnetic experiments indicate the dominance of a low coercivity magnetic phase, such as magnetite and/or Ti-magnetite as the main carrier of the remanent magnetization. Stepwise thermal demagnetization experiments generally show a stable characteristic remanent magnetization (ChRM). The mean archaeomagnetic direction, calculated from 17 independently oriented samples, is D=18.2o, I=66.8o with α95=2.6o and k=184. Archaeomagnetic dating of the kiln has been obtained after comparison of the kiln's ChRM direction with the reference curves produced by the SHA.DIF.3K European regional geomagnetic field model. Independent dating of the kiln has also been obtained from thermoluminescence (TL) study of two baked clay samples coming from the kiln's walls. The environmental dose has been measured in situ using field dosimeters. Accurate TL procedures have been followed for the calculation of annual dose and eventually the TL age. The combination of the archaeological evidence, archaeomagnetic and TL datings suggest that the last usage of the kiln occurred around the 17th century AD. Comparison of the results obtained from the different methods shows the relevant potential of these techniques on dating of baked clay artefacts; yet it also highlights the range of uncertainty sources affecting measurements, related to the samples and/or to the environment, and the utility of dating cross-checking for obtaining reliable dates.

The modified gap excess ratio (GER*) and the stratigraphic congruence of dinosaur phylogenies.

PubMed

Wills, Matthew A; Barrett, Paul M; Heathcote, Julia F

2008-12-01

Palaeontologists routinely map their cladograms onto what is known of the fossil record. Where sister taxa first appear as fossils at different times, a ghost range is inferred to bridge the gap between these dates. Some measure of the total extent of ghost ranges across the tree underlies several indices of cladistic/stratigraphic congruence. We investigate this congruence for 19 independent, published cladograms of major dinosaur groups and report exceptional agreement between the phylogenetic and stratigraphic patterns, evidenced by sums of ghost ranges near the theoretical minima. This implies that both phylogenetic and stratigraphic data reflect faithfully the evolutionary history of dinosaurs, at least for the taxa included in this study. We formally propose modifications to an existing index of congruence (the gap excess ratio; GER), designed to remove a bias in the range of values possible with trees of different shapes. We also propose a more informative index of congruence--GER*--that takes account of the underlying distribution of sums of ghost ranges possible when permuting stratigraphic range data across the tree. Finally, we incorporate data on the range of possible first occurrence dates into our estimates of congruence, extending a procedure originally implemented with the modified Manhattan stratigraphic measure and GER to our new indices. Most dinosaur data sets maintain extremely high congruence despite such modifications.

East Asian adolescents' ethnic identity development and cultural integration: A qualitative investigation.

PubMed

Yoon, Eunju; Adams, Kristen; Clawson, Angela; Chang, Hanna; Surya, Shruti; Jérémie-Brink, Gihane

2017-01-01

Drawing on the current conceptualization of acculturation/enculturation as bilinear, multidimensional processes proceeding in interaction with surrounding contexts, this study examined ethnic identity development and cultural integration of 13 adolescents from East Asian immigrant families. Five domains emerged via the Consensual Qualitative Research method: ethnic/cultural identity and socialization; bicultural living; racial context-racism and stereotypes; family context-parental expectation; and peer context-friendship/dating. Overall, the participants experienced a cultural split and discontinuity between the 2 worlds of home and ethnic community versus school and society in general. They received strong ethnic socialization messages from family and ethnic community. Although most participants experienced hurtful racial discrimination, they used passive coping (e.g., dismiss, minimize, defend perpetrators). The model minority stereotype was prevalent and deeply engrained in many aspects of their lives including ethnic identity development, cultural socialization messages from mainstream society, discrimination experiences, and academic/occupational demands imposed by self, parents, peers, and society. Although they appreciated parents' high expectations of academic/occupational success, they felt pressured and desired to have space and independence. Friendship/dating patterns reflected ethnic identity development as well as contextual influence. Implications for research and practice are discussed. (PsycINFO Database Record (c) 2017 APA, all rights reserved).