Source: http://www.science.gov/topicpages/0-9/510k+summary+date.html
Timestamp: 2016-09-25 17:26:06
Document Index: 275901196

Matched Legal Cases: ['§ 807', '§ 807', '§ 807', '§ 807', '§ 807', '§ 807', '§ 807', '§ 807', 'art 60', 'art 60', '§ 60', 'art 62', '§ 62', 'art 60', '§ 60', 'arts 404', '§ 62', '§ 987', '§ 21', '§ 74']

510k summary date: Topics by Science.gov
Sample records for 510k summary date
... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Content and format of a 510(k) summary. 807.92... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.92 Content and format of a 510(k) summary. (a) A 510(k) summary shall be in sufficient detail to provide an understanding of the basis for...
... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Content and format of a 510(k) summary. 807.92... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.92 Content and format of a 510(k) summary. (a) A 510(k) summary shall be in sufficient detail to provide an understanding of the basis for...
... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Content and format of a 510(k) summary. 807.92... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.92 Content and format of a 510(k) summary. (a) A 510(k) summary shall be in sufficient detail to provide an understanding of the basis for...
... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Content and format of a 510(k) summary. 807.92... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.92 Content and format of a 510(k) summary. (a) A 510(k) summary shall be in sufficient detail to provide an understanding of the basis for...
... identifiers, and trade secret and confidential commercial information, as defined in 21 CFR 20.61. (2) The... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Content and format of a 510(k) statement. 807.93... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.93 Content and format of a 510(k) statement....
... identifiers, and trade secret and confidential commercial information, as defined in 21 CFR 20.61. (2) The... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Content and format of a 510(k) statement. 807.93... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.93 Content and format of a 510(k) statement....
... identifiers, and trade secret and confidential commercial information, as defined in 21 CFR 20.61. (2) The... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Content and format of a 510(k) statement. 807.93... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.93 Content and format of a 510(k) statement....
... identifiers, and trade secret and confidential commercial information, as defined in 21 CFR 20.61. (2) The... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Content and format of a 510(k) statement. 807.93... IMPORTERS OF DEVICES Premarket Notification Procedures § 807.93 Content and format of a 510(k) statement....
... not always initially provide sufficient engineering and design information for their devices under... HUMAN SERVICES Food and Drug Administration Strengthening the Center for Devices and Radiological Health's 510(k) Review Process; Public Meeting; Request for Comments AGENCY: Food and Drug...
75 FR 10294 - Strengthening the Center for Devices and Radiological Health's 510(k) Review Process; Public...
... Register of Wednesday, January 27, 2010 (75 FR 4402). In the notice, FDA requested comments on a number of... INFORMATION: I. Background In the Federal Register of January 27, 2010 (75 FR 4402), FDA published a notice...'s 510(k) Review Process; Public Meeting; Extension of Comment Period AGENCY: Food and...
76 FR 54777 - Center for Devices and Radiological Health 510(k) Clearance Process; Recommendations Proposed in...
... notice that appeared in the Federal Register of Friday, August 12, 2011 (76 FR 50230). The document...-0002, 301-796-9148. SUPPLEMENTARY INFORMATION: In FR Doc. 2011-20575, appearing on page 50230 in the... HUMAN SERVICES Food and Drug Administration Center for Devices and Radiological Health 510(k)...
... Group Preliminary Report and Recommendations, and Task Force on the Utilization of Science in Regulatory... of Science in Regulatory Decision Making. Volume I is entitled ``510(k) Working Group Preliminary Report and Recommendations.'' Volume II is entitled ``Task Force on the Utilization of Science...
... transplantation. The guidance provides detailed information on the types of studies FDA recommends for validation... information on the types of studies FDA recommends for validation of HLA test kits submitted as 510(k)s. The... designing and conducting studies for validation of nucleic acid-based HLA test kits and preparing a...
76 FR 45825 - Center for Devices and Radiological Health 510(k) Clearance Process; Institute of Medicine Report...
.... The report was issued on August 5, 2010 (75 FR 47307). After reviewing public comment, CDRH issued a... HUMAN SERVICES Food and Drug Administration Center for Devices and Radiological Health 510(k) Clearance Process; Institute of Medicine Report: ``Medical Devices and the Public's Health, The FDA 510(k)...
Summary of potassium/argon age dating, 1980
Evans, S.H. Jr.; Brown, F.H.
A significant improvement in efficiency of the K-Ar laboratory was brought about by completion of a second extraction line. Two extractions can now be done routinely each day and the /sup 38/Ar spike ratios of the new table will permit dating of much younger samples than previously. Extensive K-Ar dating of samples from the Mineral Mountains shows intervals of silicic volcanism at 0.5, 0.8 and 7.5 m.y. K-Ar dating of plutonic units does not present a consistent picture, however. Plutonic events 35 to 40 m.y., 29 m.y. and 19 to 21 m.y. ago are suggested but interpretation must be considered preliminary. Joint programs with the US Geological Survey now underway to study the Rb-Sr and U-Pb systematics of the Mineral Mountains pluton should aid in unravelling its history. Dating of basalts from the Cove Creek Domes/Twin Peaks area, Utah, has aided in delineating the timing of basaltic volcanism. This adds to the already extensive data on the chronology of volcanic activity in the area. Dating of samples from the Beowawe Known Geothermal Resources Area, Nevada have confirmed earlier dates indicating major volcanism took place 38 m.y. ago and 17 to 16 m.y. ago.
District Awards for Teacher Excellence (D.A.T.E.) Program: Final Evaluation Report. [Executive Summary
Springer, Matthew G.; Lewis, Jessica L.; Ehlert, Mark W.; Podgursky, Michael J.; Crader, Gary D.; Taylor, Lori L.; Gronberg, Timothy J.; Jansen, Dennis W.; Lopez, Omar S.; Stuit, David A.
District Awards for Teacher Excellence (D.A.T.E.) is a state-funded program in Texas that provides grants to districts for the implementation of locally-designed incentive pay plans. All districts in the state are eligible to receive grants, but participation is voluntary. D.A.T.E. incentive pay plans were first implemented in Texas districts…
76 FR 48062 - Effective Date of Requirement for Premarket Approval for Cranial Electrotherapy Stimulator
... a premarket application (PMA or PDP) and $2,174 for a 510(k) submission (75 FR 45641 at 45643). Thus... device along with information submitted in response to the 515(i) Order, (74 FR 16214, April 9, 2009... published in the Federal Register on these dates: November 28, 1974 (43 FR 55716), September 4, 1979 (44...
District Awards for Teacher Excellence (D.A.T.E.) Program: Year One Evaluation Report. Policy Evaluation Report. [Executive Summary
Springer, Matthew G.; Lewis, Jessica L.; Podgursky, Michael J.; Ehlert, Mark W.; Taylor, Lori L.; Lopez, Omar S.; Ghoshdastidar, Bonnie; Peng, Art
The District Awards for Teacher Excellence's (D.A.T.E.'s) first year of implementation in 2008-09 occurred at a time when Texas was operating several state-funded performance pay programs. The three-year Governor's Educator Excellence Grant (G.E.E.G.) program was coming to its expected completion, while the Texas Educator Excellence Grant…
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.
This article presents summaries of three articles relevant to school crisis response: (1) "Factors Contributing to Posttraumatic Growth," summarized by Steve DeBlois; (2) "Psychological Debriefing in Cross-Cultural Contexts" (Stacey Rice); and (3) "Brain Abnormalities in PTSD" (Sunny Windingstad). The first summary reports the findings of a…
19 CFR 142.13 - When entry summary must be filed at time of entry.
... duties attached, if the entry/entry summary information and a valid scheduled statement date have been... estimated duties attached if the entry/entry summary information and a valid scheduled statement date...
Violence in Dating Relationships: A Review.
Christenberry, Nola J.; Glascock, Paticia C.
Some researchers have likened an abusive relationship to the conditions encountered by hostages or prisoners of war. To better understand abusive relationships, a summary of research related to violence in dating relationships, with a particular emphasis on college students, is presented here. The review begins with a description of the most…
This column features summaries of research articles from 3 recent crisis management publications. The first, "School Shootings and Counselor Leadership: Four Lessons from the Field" summarized by Kristi Fenning, was conducted as the result of the increased demand for trained crisis personnel on school campuses. Survey participants were leaders…
Brock, Stephen E., Ed.; Bratica, Robyn; Dempsey, Jack R.; Karle, Jessica
This article presents summaries of recent crisis management publications. The first article summarized provides a review of research documenting that even when children are not physically proximal to a national disaster (9/11), they may still have negative reactions. The second article summarized is an examination of the PTSD diagnostic criterion…
This article presents summaries of two recent crisis management publications: (1) "Social Validity of the CISM Model for School Crisis Intervention," summarized by Jack R. Dempsey; and (2) "School Violence: Associations With Control, Security/Enforcement, Educational/Therapeutic Approaches, and Demographic Factors," summarized by Ashlee Barton.…
This article presents summaries of three recent crisis management publications: (1) "School Violence: Associations With Control, Security/Enforcement, Educational/Therapeutic Approaches, and Demographic Factors," reviewed by Ashlee Barton; (2) "The Relationship Between Cognitive Coping Styles and PTSD in Survivors of Traffic Accidents," summarized…
Massey, P.; Koenigsberger, G.
In this summary we will first talk a little bit about the woman whose work so inspired us and brought us here. We will then describe what we feel we learned this week, and finally we will pose some of the big questions that we are left with.
This column features summaries of five research articles relevant to school crisis response. The first, "High School Teachers' Experiences With Suicidal Students," summarized by Robyn Bratica, offers the results of a study examining high school teachers' experiences with suicidal students and suggests that contact with suicidal students is very…
Waste dislodging and conveyance testing summary and conclusions to date
Rinker, M.W.; Hatchell, B.K.; Mullen, O.D.
This document summarizes recent work performed by the Waste Dislodging and Conveyance technology development program to provide assistance with the retrieval of wastes from the Hanford single-shell tanks (SSTs). This work is sponsored by the Underground Storage Tank-Integrated Demonstration (UST-ID) Office with the U.S. Department of Energy (DOE) Office of Technology Development. A baseline technology of high-pressure water-jet dislodging and pneumatic conveyance integrated as a scarifier is proposed as a means of retrieval. The tests and studies described were performed to demonstrate that at least one robust technology exists that could be effectively used with low water-addition arm-based systems. These results are preliminary and do not represent an optimized baseline. The Waste Dislodging and Conveyance work thus far has demonstrated that waterjet mobilization and air conveyance can mobilize and convey SST waste simulants at the target rates while operating within the space envelope and the dynamic loading constraints of deployment devices. The recommended technologies are well proven in industrial applications and are quite robust, yet lightweight and relatively benign to the retrieval environment. The baseline approach has versatility to continuously dislodge and convey a broad range of waste forms, from hard wastes to soft sludge wastes. The approach also has the major advantage of being noncontact with the waste surface under normal operation.
Dating Violence in Russia
The phenomenon of violence in interpersonal relationships has been little studied in Russia, and the phenomenon of violence between dating partners has not been the object of scientific interest at all. The study on which the present article is based was designed to obtain information about the violence in dating among students enrolled in…
This book chapter reviews date palm genetic resources and their conservation. Date palm (Phoenix dactylifera) is an important food crop in the Middle East and North Africa. Its center of origin and diversity most probably is the area near Iraq/Iran. From there, it spread throughout its present range...
California Polytechnic State University's design project for the 1990-91 school year was the design of a close air support aircraft. There were eight design groups that participated and were given requests for proposals. These proposals contained mission specifications, particular performance and payload requirements, as well as the main design drivers. The mission specifications called for a single pilot weighing 225 lb with equipment. The design mission profile consisted of the following: (1) warm-up, taxi, take off, and accelerate to cruise speed; (2) dash at sea level at 500 knots to a point 250 nmi from take off; (3) combat phase, requiring two combat passes at 450 knots that each consist of a 360 deg turn and an energy increase of 4000 ft. - at each pass, half of air-to-surface ordnance is released; (4) dash at sea level at 500 knots 250 nmi back to base; and (5) land with 20 min of reserve fuel. The request for proposal also specified the following performance requirements with 50 percent internal fuel and standard stores: (1) the aircraft must be able to accelerate from Mach 0.3 to 0.5 at sea level in less than 20 sec; (2) required turn rates are 4.5 sustained g at 450 knots at sea level; (3) the aircraft must have a reattack time of 25 sec or less (reattack time was defined as the time between the first and second weapon drops); (4) the aircraft is allowed a maximum take off and landing ground roll of 2000 ft. The payload requirements were 20 Mk 82 general-purpose free-fall bombs and racks; 1 GAU-8A 30-mm cannon with 1350 rounds; and 2 AIM-9L Sidewinder missiles and racks. The main design drivers expressed in the request for proposal were that the aircraft should be survivable and maintainable. It must be able to operate in remote areas with little or no maintenance. Simplicity was considered the most important factor in achieving the former goal. In addition, the aircraft must be low cost both in acquisition and operation. The summaries of the aircraft
43 CFR 10.8 - Summaries.
... repatriation of such objects. The summary serves in lieu of an object-by-object inventory of these collections... funerary object, sacred object, or object of cultural patrimony, including: (i) The name of the person or organization from whom the object was obtained, if known; (ii) The date of acquisition; (iii) The place...
Presents activities to cultivate the tendency to see special qualities in numbers that can be played on certain calendar days. Includes games on the constant of the day, Fibonacci and golden ratio dates, primes, powers, December 25, and the day of the year. (ASK)
The date palm (Phoenix dactylifera) is the dominant component upon which the sustainable biophysical and socio-economic structures of the oasis ecosystem are based; a fruit tree with unique nutritional, biochemical and biophysical characteristics, a rich source of aesthetic and cultural values, and ...
... online by 5 p.m. on September 15, 2011. For those without Internet access, please call the contact person... August 5, 2010 (75 FR 47307). After reviewing public comment, CDRH issued a plan of action for... making available a mechanism to achieve timely access of medical devices to the market. On July 29,...
76 FR 14028 - Center for Devices and Radiological Health 510(k) Implementation: Online Repository of Medical...
... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HEALTH AND...) Implementation: Online Repository of Medical Device Labeling, Including Photographs; Public Meeting AGENCY: Food... of an Online Repository of Medical Device Labeling and of Making Device Photographs Available in...
76 FR 68373 - Proposed Revision to Vintage Date Requirements
... Federal Register (42 FR 30517) on June 15, 1977, ATF noted that the wine industry advocated that the then.... SUMMARY: The Alcohol and Tobacco Tax and Trade Bureau proposes to amend its wine labeling regulations to allow a vintage date to appear on a wine that is labeled with a country as an appellation of origin....
76 FR 335 - Notice of Advisory Committee Meeting Date Change
...), DoD. ACTION: Notice. SUMMARY: On Tuesday, December 28, 2010 (75 FR 81589) the Department of Defense... are no other changes to the notice announced on Tuesday, December 14, 2010 (75 FR 77848). FOR FURTHER...-6438, or mail at 7100 Defense Pentagon, Washington, DC 20301-7100. Dated: December 29, 2010. Morgan...
Vulcanism and Radiocarbon Dates
Libby, L. M.; Libby, W. F.
40 CFR Table 4 to Subpart Cccc of... - Summary of Reporting Requirements a
..., Subpt. CCCC, Table 4 Table 4 to Subpart CCCC of Part 60—Summary of Reporting Requirements a Report Due... Part 60—Summary of Reporting Requirements a Report Due date Contents Reference ******* Annual report No... 40 Protection of Environment 7 2012-07-01 2012-07-01 false Summary of Reporting Requirements a...
Jouriles, Ernest N.; Platt, Cora; McDonald, Renee
Beginning with a definition of dating and dating violence among adolescents, this article explores the factors which impact such violence. It concludes with a review of two school-based prevention/intervention programs (Safe Dates and The Youth Relationships Project). (Contains 1 table.)
78 FR 36548 - Filing Dates for the New Jersey Senate Special Elections
... From the Federal Register Online via the Government Publishing Office FEDERAL ELECTION COMMISSION Filing Dates for the New Jersey Senate Special Elections AGENCY: Federal Election Commission. ACTION: Notice of filing dates for special election. SUMMARY: New Jersey has scheduled special elections...
75 FR 34450 - Filing Dates for the Indiana Special Election in the 3rd Congressional District
... From the Federal Register Online via the Government Publishing Office FEDERAL ELECTION COMMISSION Filing Dates for the Indiana Special Election in the 3rd Congressional District AGENCY: Federal Election Commission. ACTION: Notice of filing dates for special election. SUMMARY: Indiana has scheduled a...
77 FR 43823 - Filing Dates for the Michigan Special Election in the 11th Congressional District
... From the Federal Register Online via the Government Publishing Office FEDERAL ELECTION COMMISSION Filing Dates for the Michigan Special Election in the 11th Congressional District AGENCY: Federal Election Commission. ACTION: Notice of filing dates for special election. SUMMARY: Michigan has...
77 FR 9927 - Filing Dates for the Arizona Special Election in the 8th Congressional District
... From the Federal Register Online via the Government Publishing Office FEDERAL ELECTION COMMISSION Filing Dates for the Arizona Special Election in the 8th Congressional District AGENCY: Federal Election Commission. ACTION: Notice of filing dates for special election. SUMMARY: Arizona has scheduled elections...
78 FR 53454 - Filing Dates for the Louisiana Special Elections in the 5th Congressional District
... From the Federal Register Online via the Government Publishing Office FEDERAL ELECTION COMMISSION Filing Dates for the Louisiana Special Elections in the 5th Congressional District AGENCY: Federal Election Commission. ACTION: Notice of filing dates for special election. SUMMARY: Louisiana has...
77 FR 56208 - Filing Dates for the Kentucky Special Election in the 4th Congressional District
... From the Federal Register Online via the Government Publishing Office FEDERAL ELECTION COMMISSION Filing Dates for the Kentucky Special Election in the 4th Congressional District AGENCY: Federal Election Commission. ACTION: Notice of filing dates for special election. SUMMARY: Kentucky has scheduled a...
75 FR 5620 - New Date for April 2010 Customs Brokers License Examination
... SECURITY U.S. Customs and Border Protection New Date for April 2010 Customs Brokers License Examination AGENCY: Customs and Border Protection, Department of Homeland Security. ACTION: General notice. SUMMARY: This document announces that U.S. Customs and Border Protection (``CBP'') has changed the date on...
78 FR 67344 - Sunshine Act Meeting; New Time and Date of Proceeding
..., (78 FR 49262), concerning notice of intent to convene a public meeting and hearing on October 22, 2013... SAFETY BOARD Sunshine Act Meeting; New Time and Date of Proceeding AGENCY: Defense Nuclear Facilities Safety Board. ACTION: Notice of Public Meeting and Hearing; New Time and Date. SUMMARY: The...
NASA Information Summaries.
Mar, May 1987, 1988
This document consists of 11 "NASA Information Summaries" grouped together: (1) "Our Planets at a Glance" (PMS-010); (2) "Space Shuttle Mission Summary: 1985-1986" (PMS-005); (3) "Astronaut Selection and Training" (PMS-019); (4) "Space Station" (PMS-008); (5) "Materials Processing in Space" (PMS-026); (6) "Countdown!: NASA Launch Vehicles and…
Radiocarbon Dating, Memories, and Hopes
VIEW OF DATE DRIVE, SHOWING DATE PALMS. NOTE TRELLIS ON ...
27 CFR 19.593 - Tank summary record for spirits of 190° or more of proof.
...) Arrangement of records. The proprietor must prepare and arrange the tank summary records as follows: (1) For... summary records must show the following details: (1) The kind of spirits; (2) The date of the transactions... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Tank summary record...
Radiocarbon Dating: An Annotated Bibliography.
Fortine, Suellen
This selective annotated bibliography covers various sources of information on the radiocarbon dating method, including journal articles, conference proceedings, and reports, reflecting the most important and useful sources of the last 25 years. The bibliography is divided into five parts--general background on radiocarbon, radiocarbon dating,…
Hydration rind dates rhyolite flows.
Hydration of obsidian has been used to date rhyolite flows, containing obsidian or porphyritic glass, at Glass Mountain (Medicine Lake Highlands) and Mono Lake, California. The method is simple and rapid and can be used to date flows that erupted between 200 and approximately 200,000 years ago. PMID:17768978
Hydration rind dates rhyolite flows
Hydration of obsidian has been used to date rhyolite flows, containing obsidian or porphyritic glass, at Glass Mountain (Medicine Lake Highlands) and Mono Lake, California. The method is simple and rapid and can be used to date flows that erupted between 200 and approximately 200,000 years ago.
In this summary of the Fernald 1992 Site Environmental Report the authors will describe the impact of the Fernald site on man and the environment and provide results from the ongoing Environmental Monitoring Program. Also included is a summary of the data obtained from sampling conducted to determine if the site complies with DOE, US Environmental Protection Agency (USEPA), and Ohio EPA (OEPA) requirements. These requirements are set to protect both man and the environment.
Optical Dating of Martian Eolian Sediments by Robotic Spacecraft
Sears, Derek W. G.; Lepper, Kenneth; McKeever, W. S.
The Martian polar ice caps record a wealth of information about the past history and climate of Mars, but as pointed out by Clifford et al. in the summary of the First International Conference on Mars Polar Science and Exploration, 'The single greatest obstacle to unlocking and interpreting the geologic and climatic record preserved at the [martian] poles is the need for absolute dating.' Stratification in the polar caps arises, at least in part, from the incorporation of eolian material into the ice, and dune fields near the poles indicate eolian transport is an important surfical process in this region of Mars. Eolian materials are ideally suited for sediment dating using luminescence methods. Luminescence dating techniques have been used successfully to make absolute age determinations for numerous terrestrial Quaternary eolian deposits. Clifford et al. also concluded that cost, simplicity, and potential for minaturization make luminescence dating more feasible than isotopic methods for in situ dating by robotic landers. In fact, the water detection equipment of the Deep Space 2 microprobes and the MECA on the Mars Polar Lander contain components similar to those required for luminescence dating.
Terrestrial carbonates encompass a wide range of materials that potentially could be used for radiocarbon (14C) dating. Biogenic carbonates, including shells and tests of terrestrial and aquatic gastropods, bivalves, ostracodes, and foraminifera, are preserved in a variety of late Quaternary deposits and may be suitable for 14C dating. Primary calcareous deposits (marls, tufa, speleothems) and secondary carbonates (rhizoliths, fracture fill, soil carbonate) may also be targeted for dating when conditions are favorable. This chapter discusses issues that are commonly encountered in 14C dating of terrestrial carbonates, including isotopic disequilibrium and open-system behavior, as well as methods used to determine the reliability of ages derived from these materials. Recent methodological advancements that may improve the accuracy and precision of 14C ages of terrestrial carbonates are also highlighted.
Dating sediments using luminescence signals
Wintle, A. )
Before siting a nuclear power station or a nuclear waste repository, it is necessary to establish that the area has been free of earthquake activity for a sufficient period of time. Evidence of past earthquake activity is often provided by faults in surface sediments. Age limits for fault formation can be set by obtaining the depositional ages of the sediment unit in which the fault was formed and the overlying sediment. A useful technique would be one that dating could be applied to the mineral grains that make up the sediments and that would give the time that has passed since the grains were blown or washed into position. Luminescence dating techniques, of which the most well known is thermo-luminescence (TL), provide such information. This approach has been successful in dating movement on the Wasatch Fault in Utah. A combination of TL and radiocarbon dates indicated that three faulting events had occurred within the past 5000 years. 2 refs., 1 fig.
... Mom-to-be tools Ovulation and due date calculator Preconception health quiz Pregnancy know-how quiz Government ... Pregnancy > Pregnancy This information in Spanish ( en español ) Calculator Content last updated September 27, 2010. Resources last ...
Hendriks, Laura; Hajdas, Irka; McIntyre, Cameron; Küffner, Markus; Scherrer, Nadim C.; Ferreira, Ester S. B.
In this paper, radiocarbon dating of paintings using minimal sample sizes has been investigated, in an effort to address the problem of limited access to sample material in paintings. 14C analyses were conducted on signed and dated paintings from two Swiss artists of the twentieth century. The selected paintings dated from the 1930s and 1960s, provided the opportunity to evaluate the dating accuracy on paintings realized before and after 1950 AD when the 14C bomb peak was created, as a result of the nuclear tests conducted in the 1950/1960s. The work focused on the one hand on minimizing the size of the canvas sample required for accelerator mass spectrometer radiocarbon measurement on the gas ion source of the MICADAS and, on the other hand, on testing the possibility of dating the organic binder of the paint. Following careful characterization of the paint composition by X-ray fluorescence spectroscopy, Fourier transformed infrared spectroscopy, and Raman spectroscopy, paints containing no other carbon source than the natural organic binder were identified and dated.
The methods that can be used for the direct dating of human remains comprise of radiocarbon, U-series, electron spin resonance (ESR), and amino acid racemization (AAR). This review gives an introduction to these methods in the context of dating human bones and teeth. Recent advances in ultrafiltration techniques have expanded the dating range of radiocarbon. It now seems feasible to reliably date bones up to 55,000 years. New developments in laser ablation mass spectrometry permit the in situ analysis of U-series isotopes, thus providing a rapid and virtually non-destructive dating method back to about 300,000 years. This is of particular importance when used in conjunction with non-destructive ESR analysis. New approaches in AAR analysis may lead to a renaissance of this method. The potential and present limitations of these direct dating techniques are discussed for sites relevant to the reconstruction of modern human evolution, including Florisbad, Border Cave, Tabun, Skhul, Qafzeh, Vindija, Banyoles, and Lake Mungo. PMID:17103430
Dating of Modern Human Evolution
Grun, R.
Dating studies on palaoeanthropological sites is usually carried out on material associ- ated with the human remains, such as the sediment, charcoal or other fauna rather than the human specimen itself. The reason lies in the fact that most dating techniques are destructive and because the hominid remains are too rare to be sacrificed for dating. This indirect dating approach is in many cases not satisfactory, because: (i) the human remains are often buried into the sediments and the association with other materials is uncertain (e.g. Skhul, Qafzeh, etc.); (ii) faunal remains or minerals from the sediment are re-worked from older deposits (see e.g. present discussion of the age of the Homo erectus remains in Indonesia; (iii) the hominid fossils were discovered at a time when no careful excavations were carried out and it is impossible to correlate the specimen with other datable material (which applies tonearly 90% of all palaeoanthropological specimens). For example, the hominid burial site of Qafzeh in Israel has been dated by several independent dating laboratories with a multitude of methods. However, the data are still not accepted by some because the dating has not been carried out on the hominid specimen. Until recently, hominid fossils could only be dated by radiocarbon. This method reaches back to about 40,000 years. As a consequence, all the older fossils could not be analysed and many important questions in our understanding of human evolution could not be addressed. Human remains are scarce and extremely valuable, therefore any sort of destruction has to be kept to an absolute minimum. This is of particular importance in Australia where any human fossils are sacred. Thus, for the analysis of hominid material it was necessary to develop a more or less non-destructive techniques. This has been ac- complished in recent years by the application of ESR dating of tooth enamel and a combination of gamma spectrometric and TIMS U-series dating of bones. The exam
Biofuels program summary. Volume 2: Research summaries
The Federal government has supported research on biomass technology and energy from municipal waste since 1975. Separate research programs were conducted until 1985 when the two were merged into biofuels and municipal waste technology to take advantage of their many similarities in conversion requirements and research needs. The purpose of the biofuels program is to provide focus, direction, coordination, and funding for the development of technologies that produce tailored energy crops and convert these crops and wastes to fuels. The FY 1989 program includes research on the production (growth) of biomass and its conversion to fuels. Research on biomass production involves the development and use of genetically improved trees and grasses specifically for their energy conversion characteristics (terrestrial energy crops). The Biofuels Program Summary is prepared each year and consists of a two-volume reference set describing the technological advances, current projects, and future research and development (R and D) directions of the program. This volume (Volume 2-Research Summaries) is a compilation of detailed descriptions of the R and D projects performed by the national laboratories and their subcontractors from industry, universities, and nonprofit research institutions.
40 CFR Table 5 to Subpart Dddd of... - Model Rule-Summary of Reporting Requirements a
...—Model Rule—Summary of Reporting Requirements a Report Due date Contents Reference Waste Management Plan... 40 Protection of Environment 6 2010-07-01 2010-07-01 false Model Rule-Summary of Reporting... management plan § 60.2755. Initial Test Report No later than 60 days following the initial performance...
... Part 62—Summary of Reporting Requirements a Report Due date Contents Reference A. Waste Management Plan No later than April 5, 2004 Waste management plan § 62.14715. B. Initial Test Report No later than 60... 40 Protection of Environment 9 2014-07-01 2014-07-01 false Summary of Reporting Requirements a...
78 FR 17671 - Federal Acquisition Regulation; Submission for OMB Review; Summary Subcontract Report
... Regulation; Submission for OMB Review; Summary Subcontract Report AGENCY: Department of Defense (DOD... Register at 77 FR 69483, on November 19, 2012. One comment was received. DATES: Submit comments on or..., Summary Subcontract Report, by any of the following methods: Regulations.gov :...
40 CFR Table 4 to Subpart Eeee of... - Summary of Reporting Requirements
... 40 Protection of Environment 7 2012-07-01 2012-07-01 false Summary of Reporting Requirements 4.... EEEE, Table 4 Table 4 to Subpart EEEE of Part 60—Summary of Reporting Requirements As stated in § 60.2951, you must comply with the following: Report Due date Contents Reference 1. Preconstruction...
Green Infrastructure for Stormwater Control: Gauging its Effectiveness with Community Partners, Summary of EPA GI Reports
This document is a summary of the green infrastructure reports, journal articles, and conference proceedings published to date. This summary will be updated as more reports are completed. The Environmental Protection Agency’s Office of Research and Development has an ambitious ...
Environmental Measurements Session summaries
Lehmann, J.; Tanner, S. G. (Editor); Wilkerson, T. (Editor)
Emphasis was placed on data from payloads flown on the subject flights including results from the Induced Environment Contamination monitor (IECM). Brief summaries of the vibroacoustics, loads, electromagnetic and thermal aspects of the environment, as derived from Shuttle system measurements, were presented primarily to indicate where the environment was different than observed and, therefore, where specification changes may be forthcoming. In addition, brief summaries of two somewhat unexpected effects, the vehicle glow and interaction between the low Earth environment and Shuttle payload by materials were presented as an aid in interpreting other environmental data. Papers for each payload/experiment involved in Shuttle flights were presented essentially in flight related chronological order. A significant portion of time was allocated for presentation of IECM data since this payload was flown on STS-2, STS-3, and STS-4 and, therefore, represents the largest data base relative to the contamination environment. Summaries of papers are presented.
In this paper we describe a case in which a cash book, dated of the year 2000, was sent to the Forensic Science Division, Document Laboratory, Zurich Canton Police in March 2003. The questioned document was a list of 29 pages containing a consecutive handwritten numbering and dated entries (payments) made of blue ballpoint pen ink. By definition, a cash book has to be written by hand and the entries have to be made daily. The questioned document was suspected to have been written within a short period (e.g., a few hours) and backdated. The document lab was asked to determine the date of the entries of the questioned list. On one hand, we were asked, if the cash book had been kept on account consecutively during the period of one year, and on the other hand, the judges were interested in knowing, if the document could have been written in 2003 and back dated to 2000. To answer these questions, the document was examined for latent elements by electrostatic detection device (ESDA). The relative dating of the entries was performed by the quantification of the ballpoint pen ink dyes and their degradation products using HPLC. Results show that it is possible to determine the relative age of entries written by ballpoint pen within a relatively short time scale, if storage and supporting material of the different samples are the same or at least similar. PMID:15568713
Launch summary for 1980
Sounding rockets, artificial Earth satellites, and space probes launched betweeen January 1 and December 31, 1980 are listed. Data tabulated for the rocket launchings show launching site, instruments carried, date of launch, agency rocket identification, sponsoring country, experiment discipline, peak altitude, and the experimenter or institution responsible. Tables for satellites and space probes show COSPAR designation, spacecraft name, country, launch date, epoch date, orbit type, apoapsis, periapsis and inclination period. The functions and responsibilities of the World Data Center and the areas of scientific interest at the seven subcenters are defined. An alphabetical listing of experimenters using the sounding rockets is also provided.
This short contribution is a lite MESON2000 conference summary. As appropriate for the 600th anniversary of the Jagellonian University, it begins with a brief summary of the last 600 years of European history and its place in hadron physics. Next a ''physicist chirality'' order parameter PC is introduced. When applied to MESON2000 plenary speakers this order parameter illustrates the separation of hadron physicists into disjoint communities. The individual plenary talks in MESON2000 are next sorted according to the subconference associated with each of the 36 plenary speakers. Finally, I conclude with a previously unreported Feynman story regarding the use of models in hadron physics.
77 FR 59241 - Notice of Effective Date of Modifications to Certain Textile and Apparel Rules of Origin of the...
... of Effective Date of Modifications to Certain Textile and Apparel Rules of Origin of the Dominican... Representative. ACTION: Notice of Effective Date of Modifications to Certain Textile and Apparel Rules of Origin...''). SUMMARY: Public Law 112-163 modified the rules of origin for certain textile and apparel goods of...
78 FR 66638 - Extension of the Expiration Date for State Disability Examiner Authority To Make Fully Favorable...
... date by publication of a final rule in the Federal Register. 75 FR 62676. Explanation of Provision This... ADMINISTRATION 20 CFR Parts 404 and 416 RIN 0960-AH59 Extension of the Expiration Date for State Disability... AGENCY: Social Security Administration. ACTION: Final rule. SUMMARY: We are extending the expiration...
Launch summary for 1978
Sounding rocket, satellite, and space probe launchings are presented. Time, date, and location of the launches are provided. The sponsoring countries and the institutions responsible for the launch are listed.
Connolly, Jennifer; Friedlander, Laura
The peer group is a critical social context for dating and romantic relationships. Peer groups provide opportunities to meet potential dating partners and set norms for acceptable dating behaviors. This article explores how peer groups influence dating and dating aggression, as well as how they can be used in prevention efforts. It also reviews…
Brock, Stephen E., Ed.; Zhe, Elizabeth; Torem, Chris; Comeaux, Natashia; Dempsey, Allison
This article presents a summary of recent crisis management publications. The first research report summarized, "Predictors of PTSD," was a study of predictor variables for responses to the World Trade Center attack. The second paper, "Effective Mental Health Response to Catastrophic Events," looked at effective responses following Hurricane…
A top level summary of activities conducted throughout the course of the EDOMP in response to initial concerns at the outset of the program is provided. Significant findings from the investigations are summarized, together with resulting countermeasures that were implemented and flight rules that were developed in response to these findings. Subsequent paragraphs provide more information; details will be found in the referenced sections.
Remarkable Retellings, Super Summaries
Reading Teacher, 2010
Retelling and summarizing are great ways to get children involved in what they're reading--and thinking about what they understand in texts. Summarizing is a more complex task than retelling. Creating a formal summary usually involves reducing a text by about a third, writing a topic statement, eliminating redundant and unimportant details, and…
Working Group C Summary
Working group C, "Application to FELs," of the Joint ICFA Advanced Accelerator and Beam Dynamics Workshop on July 1-6, 2002 in Chia Laguna, Sardinia, Italy addressed a total of nine topics. This summary will discuss the topics that were addressed in the stand-alone sessions, including Start-To-End Simulations, SASE Experiment, PERSEO, "Optics Free" FEL Oscillators, and VISA II.
NASA Strategic Roadmap Summary Report
Wilson, Scott; Bauer, Frank; Stetson, Doug; Robey, Judee; Smith, Eric P.; Capps, Rich; Gould, Dana; Tanner, Mike; Guerra, Lisa; Johnston, Gordon
In response to the Vision, NASA commissioned strategic and capability roadmap teams to develop the pathways for turning the Vision into a reality. The strategic roadmaps were derived from the Vision for Space Exploration and the Aldrich Commission Report dated June 2004. NASA identified 12 strategic areas for roadmapping. The Agency added a thirteenth area on nuclear systems because the topic affects the entire program portfolio. To ensure long-term public visibility and engagement, NASA established a committee for each of the 13 areas. These committees - made up of prominent members of the scientific and aerospace industry communities and senior government personnel - worked under the Federal Advisory Committee Act. A committee was formed for each of the following program areas: 1) Robotic and Human Lunar Exploration; 2) Robotic and Human Exploration of Mars; 3) Solar System Exploration; 4) Search for Earth-Like Planets; 5) Exploration Transportation System; 6) International Space Station; 7) Space Shuttle; 8) Universe Exploration; 9) Earth Science and Applications from Space; 10) Sun-Solar System Connection; 11) Aeronautical Technologies; 12) Education; 13) Nuclear Systems. This document contains roadmap summaries for 10 of these 13 program areas; The International Space Station, Space Shuttle, and Education are excluded. The completed roadmaps for the following committees: Robotic and Human Exploration of Mars; Solar System Exploration; Search for Earth-Like Planets; Universe Exploration; Earth Science and Applications from Space; Sun-Solar System Connection are collected in a separate Strategic Roadmaps volume. This document contains memebership rosters and charters for all 13 committees.
Young, Dannagal Goldthwaite; Caplan, Scott E.
This study examined self-presentation in the online dating profiles of 241 widowed and 280 divorced individuals between 18 and 40 years old. A content analysis of open-ended user-generated profiles assessed the presence or absence of various themes, including the user's marital status, the backstory of their lost relationship, and whether they…
Dating Techniques in Archaeology and Paleoanthropology.
Discusses some of the new physical dating methods being used by archaeologists and paleoanthropologists to study the material remains of ancient primates. Describes the quaternary physical dating techniques, advances in radiocarbon dating, and the radiocalcium data method. (TW)
Archaeologists have an increasing array of physical dating methods at their disposal. R.E. Taylor of the University of California discusses available techniques, recent advances in radiocarbon dating, and current developments in radiocalcium dating.
40 CFR 62.3672 - Effective Date.
... Sewage Sludge Incinerators § 62.3672 Effective Date. The Federal effective date of the Indiana State Plan for existing Sewage Sludge Incinerators is August 12, 2013. Effective Date Note: At 78 FR 34920,...
Kurbatov, A. V.; Mayewski, P. A.; Abdul Jawad, B. S.
Scientists involved in ice core dating are well familiar with the problem of identification and recording the depth of annual signals using stable isotopes, glaciochemistry, ECM (electrical conductivity), DEP (dielectric properties) and particle counter data. Traditionally all parameters used for ice core dating were plotted as a function of depth, printed and after years were marked on the paper, converted to depth vs. age time scale. To expedite this tedious and manual process we developed interactive computer software, Ice core Dating (ICD) program. ICD is written in Java programming language, and uses GPL and GPL site licensed graphic libraries. The same 3.5 Mb in size pre-compiled single jar file, that includes all libraries and application code, was successfully tested on WinOS, Mac OSX, Linux, and Solaris operating systems running Java VM version 1.4. We have followed the modular design philosophy in our source code so potential integration with other software modules, data bases and server side distributed computer environments can be easily implemented. We expect to continue development of new suites of tools for easy integration of ice core data with other available time proxies. ICD is thoroughly documented and comes with a technical reference and cookbook that explains the purpose of the software and its many features, and provides examples to help new users quickly become familiar with the operation and philosophy of the software. ICD is available as a free download from the Climate Change Institute web site ( under the terms of GNU GPL public license.
31 CFR 536.302 - Effective date.
... FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS REGULATIONS General... of specially designated narcotics traffickers designated after that date, the earlier of the date...
76 FR 77831 - 2012 Presidential Candidate Matching Fund Submission Dates and Post Date of Ineligibility Dates...
... (``DOI''). Candidates are required to submit a NOCO statement prior to each regularly scheduled date on..., and accounts receivable. 11 CFR 9034.5(a). Candidates will be notified of their DOI by the Commission. A Candidate who has net outstanding campaign obligations post-DOI may continue to submit...
Mirror Confinement Systems: project summaries
This report contains descriptions of the projects supported by the Mirror Confinement Systems (MCS) Division of the Office of Fusion Energy. The individual project summaries were prepared by the principal investigators, in collaboration with MCS staff office, and include objectives and milestones for each project. In addition to project summaries, statements of Division objectives and budget summaries are also provided.
Sediment provenance, reworking and transport processes in the Indus River by U-Pb dating of detrital zircon grains
Alizai, Anwar; Carter, Andrew; Clift, Peter D.; VanLaningham, Sam; Williams, Jeremy C.; Kumar, Ravindra
We present new major and trace element data, together with U-Pb ages for zircon sand grains from the major tributaries of the Indus River, as well as the adjacent Ghaggar and Yamuna Rivers and from bedrocks within the Sutlej Valley, in order to constrain the origin of the sediment reaching the Arabian Sea. Zircon grains from the upper Indus are generally younger than 200 Ma and contrast with those from the eastern tributaries eroded from Himalayan sources. Grains younger than 15 Ma, which typify the Nanga Parbat Massif, comprise no more than 1-2% of the total, even in the upper Indus, showing that this terrain is not a major sediment producer, in contrast with the Namche Barwe Massif in the eastern Himalayan syntaxis. The Sutlej and Yamuna Rivers in particular are very rich in Lesser Himalayan-derived 1500-2300 Ma zircons, while the Chenab is dominated by 750-1250 Ma zircons, mostly eroded from the Greater Himalaya. The upper Indus, Chenab and Ravi yield zircon populations broadly consistent with the outcrop areas, but the Jhelum and the Sutlej contain many more 1500-2300 Ma zircons than would be predicted from the area of Lesser Himalayan rock within their drainages. A significant population of grains younger than 200 Ma in the sands of the Thar Desert indicates preferential eolian, monsoon-related transport from the Indus lower reaches, rather than reworking from the local rivers. Modelling of observed zircon ages close to the delta contrasts with modern water discharge. The delta is rich in zircons dating 1500-2300 Ma, while discharge from modern rivers carrying such grains is low. The modest size of the Sutlej, the richest source of these materials in the modern system, raises the possibility that the compositionally similar Yamuna used to flow westwards in the recent past. Our data indicate a non-steady state river with zircon transport times of 5-10 k.y. inferred from earlier zircon dating of delta sands. The modern delta zircons image an earlier, likely
The author gives a summary talk of the best experimental data given at the Vth Blois Workshop on Elastic and Diffractive Scattering. He addresses the following eight areas in his talk: total and elastic cross sections; single diffractive excitation; electron-proton scattering; di-jets and rapidity gaps; areas of future study; spins and asymmetries; high-transverse momentum and masses at the Tevatron; and disoriented chiral condensates and cosmic radiation.
In 2003, a series of Very Large Volume Neutrino Telescope Workshops (VLVnT) was initiated in Amsterdam, the Netherlands. The 5th workshop in this series took place in Erlangen, Germany, between 12-14 October 2011 and focused on the aspects of high-energy neutrino astronomy. In this summary report, an overview of the activities world-wide is presented as well as the perspectives of the field.
ULSGEN (Uplink Summary Generator)
Wang, Y.-F.; Schrock, M.; Reeve, T.; Nguyen, K.; Smith, B.
Uplink is an important part of spacecraft operations. Ensuring the accuracy of uplink content is essential to mission success. Before commands are radiated to the spacecraft, the command and sequence must be reviewed and verified by various teams. In most cases, this process requires collecting the command data, reviewing the data during a command conference meeting, and providing physical signatures by designated members of various teams to signify approval of the data. If commands or sequences are disapproved for some reason, the whole process must be restarted. Recording data and decision history is important for traceability reasons. Given that many steps and people are involved in this process, an easily accessible software tool for managing the process is vital to reducing human error which could result in uplinking incorrect data to the spacecraft. An uplink summary generator called ULSGEN was developed to assist this uplink content approval process. ULSGEN generates a web-based summary of uplink file content and provides an online review process. Spacecraft operations personnel view this summary as a final check before actual radiation of the uplink data. .
... Federal Register of July 19, 2007 (72 FR 39631), FDA announced the availability of the draft guidance... oxygen saturation (SpO 2 ) and pulse rate. This document supersedes the General Guidance Document... received with recommendations related to organization, terminology, references to standards, labeling,...
78 FR 1825 - Importation of Fresh Barhi Dates From Israel Into the United States
... Animal and Plant Health Inspection Service Importation of Fresh Barhi Dates From Israel Into the United States AGENCY: Animal and Plant Health Inspection Service, USDA. ACTION: Notice. SUMMARY: We are advising..., we have concluded that the application of one or more designated phytosanitary measures will...
South African History At-a-Glance--Dates and Events to Remember.
Daniels, George; Webber, Brenda L.
Forty-nine dates and events of significance in the history of South Africa are presented with a brief summary of each event. The chronology begins with the late Stone Age and extends through the political developments of 1990 that signal the decline of racial segregation in South Africa. (SLD)
77 FR 39502 - New Date for the October 2012 Customs Broker License Examination
... SECURITY U.S. Customs and Border Protection New Date for the October 2012 Customs Broker License Examination AGENCY: U.S. Customs and Border Protection, U.S. Department of Homeland Security. ACTION: General notice. SUMMARY: This document announces that U.S. Customs and Border Protection (CBP) has changed...
75 FR 8044 - Summer Undergraduate Research Program Extension of Due Date for Proposals
... Programs: Availability of Funds, 74 FR 66291 (Dec. 15, 2009). FOR FURTHER INFORMATION CONTACT: Program...) announced that they were soliciting proposals for financial assistance (74 FR 66219). The due date for... of Commerce ACTION: Notice. SUMMARY: Due to extreme weather conditions in the Mid-Atlantic...
Craigen, Laurie M.; Sikes, April; Healey, Amanda; Hays, Danica
Dating violence among adolescents is a major public health concern. The purpose of this paper is to examine five factors of which school counselors must be aware in order to recognize, intervene, and report incidence of dating violence. These factors are (a) understanding the diverse definitions of dating violence, (b) recognizing dating violence…
7 CFR 987.12 - Marketable dates.
... RIVERSIDE COUNTY, CALIFORNIA Order Regulating Handling Definitions § 987.12 Marketable dates. Marketable... exeption of Canada. The Committee may establish different requirements for different countries. (d) Product dates. Product dates are marketable dates that are inspected and certified as meeting the...
38 CFR 21.9635 - Discontinuance dates.
... individual is enrolled in an institution of higher learning on the date of expiration of his or her period of... Discontinuance dates. The effective date of a reduction or discontinuance of educational assistance will be as... payment, the discontinuance date of educational assistance for the purpose of that lump sum payment...
38 CFR 21.7135 - Discontinuance dates.
...) Eligibility expires. If the veteran is pursuing a course on the date of expiration of eligibility as... Bill-Active Duty) Payments-Educational Assistance § 21.7135 Discontinuance dates. The effective date of... dependent. If more than one type of reduction or discontinuance is involved, the earliest date will...
38 CFR 21.3332 - Discontinuance dates.
... expiration of the eligible person's entitlement. (e) Date of interruption of course as determined by the... special training allowance as provided in this section on the earliest date of the following: (a) The ending date of the course. (b) The ending date of the period of enrollment as certified by the...
40 CFR 75.4 - Compliance dates.
... of this chapter, the expiration date of a combustion source's opt-in permit under § 74.14(e) of this... become applicable upon the issuance date of the Acid Rain permit. For combustion sources seeking to enter... following dates: (i) January 1, 1995; or (ii) 90 days after the issuance date of the Acid Rain permit...
Dating tectonic structures on Mercury
Giacomini, L.; Massironi, M.; Marchi, S.; Cremonese, G.
Mercury surface appears to be interested by several tectonic structures, the most interesting ones being numerous lobate scarps formed mainly thanks to planet cooling and contraction. The Messenger cameras (MDIS WAC and NAC) allowed us to map several structures not previously detected. Among these a 250 km-long thrust has been detected crossing a peak ring basin. The region encircled within the inner ring of the basin is covered by a smooth plain with evidence of a sin-deformational emplacement. Dating this smooth plain with crater counting technique allowed us to give an age constrain of the tectonic structure.