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Sample records for secondary standard laboratory

  1. Standardizing clinical laboratory data for secondary use.

    PubMed

    Abhyankar, Swapna; Demner-Fushman, Dina; McDonald, Clement J

    2012-08-01

    Clinical databases provide a rich source of data for answering clinical research questions. However, the variables recorded in clinical data systems are often identified by local, idiosyncratic, and sometimes redundant and/or ambiguous names (or codes) rather than unique, well-organized codes from standard code systems. This reality discourages research use of such databases, because researchers must invest considerable time in cleaning up the data before they can ask their first research question. Researchers at MIT developed MIMIC-II, a nearly complete collection of clinical data about intensive care patients. Because its data are drawn from existing clinical systems, it has many of the problems described above. In collaboration with the MIT researchers, we have begun a process of cleaning up the data and mapping the variable names and codes to LOINC codes. Our first step, which we describe here, was to map all of the laboratory test observations to LOINC codes. We were able to map 87% of the unique laboratory tests that cover 94% of the total number of laboratory tests results. Of the 13% of tests that we could not map, nearly 60% were due to test names whose real meaning could not be discerned and 29% represented tests that were not yet included in the LOINC table. These results suggest that LOINC codes cover most of laboratory tests used in critical care. We have delivered this work to the MIMIC-II researchers, who have included it in their standard MIMIC-II database release so that researchers who use this database in the future will not have to do this work. PMID:22561944

  2. Secondary standards laboratories for ionizing radiation calibrations: The national laboratory interests

    NASA Astrophysics Data System (ADS)

    Roberson, P. I.; Campbell, G. W.

    1984-11-01

    The national laboratories are probable candidates to serve as secondary standards laboratories for the federal sector. Representatives of the major Department of Energy laboratories were polled concerning attitudes toward a secondary laboratory structure. Generally, the need for secondary laboratories was recognized and the development of such a program was encouraged. The secondary laboratories should be reviewed and inspected by the National Bureau of Standards. They should offer all of the essential, and preferably additional, calibration services in the field of radiological health protection. The selection of secondary laboratories should be based on economic and geographic criteria and/or be voluntary.

  3. Secondary calibration laboratory for ionizing radiation laboratory accreitation program National Institute of Standards and Technology National Voluntary Laboratory Accreditation Program

    SciTech Connect

    Martin, P.R.

    1993-12-31

    This paper presents an overview of the procedures and requirements for accreditation under the Secondary Calibration Laboratory for Ionizing Radiation Program (SCLIR LAP). The requirements for a quality system, proficiency testing and the onsite assessment are discussed. The purpose of the accreditation program is to establish a network of secondary calibration laboratories that can provide calibrations traceable to the primary national standards.

  4. [Secondary Standard Dosimetry Laboratory at the Ruder Bosković Institute, Zagreb].

    PubMed

    Vekić, Branko; Ban, Renata; Miljanić, Saveta

    2006-06-01

    The Secondary Standard Dosimetry Laboratory at the Ruder Bosković Institute (SSDL), Zagreb, Croatia, was set up over the last few years with a strong support by the International Atomic Energy Agency (IAEA) through the Technical Cooperation Project CRO/1/004, Establishing Calibration Services. The SSDL occupies two calibration rooms, each 9.6 m long and 6 m wide and each with proper air conditioning. Their walls are concrete and 1 m thick, and the entrance doors are plated with lead to protect the control rooms and the surroundings against radiation. In the first calibration room in the basement, there are two sealed sources which share the same, 6 m long calibration bench. A 30 TBq 60Co source on one side of the bench is used for calibrating ionising chambers and other high-dose radiation equipment. The irradiation unit on the other side of the bench combines two sealed sources, that is, a 740 MBq 137Cs source and a 185 MBq 60Co source, and is used for radiation protection purposes. It has three attenuators with nominal attenuations of x10, x100, and x1000. The second calibration room, which is just above the first, accommodates an X-ray unit (ISOVOLT 420, 40 kV to 300 kV, 1 mA to 20 mA) with a 5 m long calibration bench, aperture wheel assembly designed to modify the X-ray beam diameter to meet various configuration requirements for calibration instruments, a set of filter assemblies to control beam definition according to ISO 4037-3, and a half-value layer kit. PMID:16832975

  5. Primary Standards Laboratory report

    SciTech Connect

    Not Available

    1990-12-01

    Sandia National Laboratories operates the Primary Standards Laboratory (PSL) for the Department of Energy, Albuquerque Operations Office (DOE/AL). This report summarizes metrology activities that received emphasis in the first half of 1990 and provides information pertinent to the operation of the DOE/AL system-wide Standards and Calibration Program.

  6. Standards Laboratory environments

    SciTech Connect

    Braudaway, D.W.

    1990-09-01

    Standards Laboratory environments need to be carefully selected to meet the specific mission of each laboratory. The mission of the laboratory depends on the specific work supported, the measurement disciplines required and the level of uncertainty required in the measurements. This document reproduces the contents of the Sandia National Laboratories Primary Standards Laboratory Memorandum Number 3B (PSLM-3B) which was issued on May 16, 1988, under the auspices of the Department of Energy, Albuquerque Operations Office, to guide the laboratories of the Nuclear Weapons Complex in selecting suitable environments. Because of both general interest and specific interest in Standards Laboratory environments this document is being issued in a more available form. The purpose of this document is to provide guidance in selection of laboratory environments suitable for standards maintenance and calibration operations. It is not intended to mandate a specific environment for a specific calibration but to direct selection of the environment and to offer suggestions on how to extend precision in an existing and/or achievable (practical) environment. Although this documents pertains specifically to standards laboratories, it can be applied to any laboratory requiring environmental control.

  7. Sonication standard laboratory module

    DOEpatents

    Beugelsdijk, Tony; Hollen, Robert M.; Erkkila, Tracy H.; Bronisz, Lawrence E.; Roybal, Jeffrey E.; Clark, Michael Leon

    1999-01-01

    A standard laboratory module for automatically producing a solution of cominants from a soil sample. A sonication tip agitates a solution containing the soil sample in a beaker while a stepper motor rotates the sample. An aspirator tube, connected to a vacuum, draws the upper layer of solution from the beaker through a filter and into another beaker. This beaker can thereafter be removed for analysis of the solution. The standard laboratory module encloses an embedded controller providing process control, status feedback information and maintenance procedures for the equipment and operations within the standard laboratory module.

  8. Proficiency Testing as a tool to monitor consistency of measurements in the IAEA/WHO Network of Secondary Standards Dosimetry Laboratories

    NASA Astrophysics Data System (ADS)

    Meghzifene, Ahmed; Czap, Ladislav; Shortt, Ken

    2008-08-01

    The International Atomic Energy Agency (IAEA) and the World Health Organization (WHO) established a Network of Secondary Standards Dosimetry Laboratories (IAEA/WHO SSDL Network) in 1976. Through SSDLs designated by Member States, the Network provides a direct link of national dosimetry standards to the international measurement system of standards traceable to the Bureau International des Poids et Mesures (BIPM). Within this structure and through the proper calibration of field instruments, the SSDLs disseminate S.I. quantities and units. To ensure that the services provided by SSDL members to end-users follow internationally accepted standards, the IAEA has set up two different comparison programmes. One programme relies on the IAEA/WHO postal TLD service and the other uses comparisons of calibrated ionization chambers to help the SSDLs verify the integrity of their national standards and the procedures used for the transfer of the standards to the end-users. The IAEA comparisons include 60Co air kerma (NK) and absorbed dose to water (ND,W) coefficients. The results of the comparisons are confidential and are communicated only to the participants. This is to encourage participation of the laboratories and their full cooperation in the reconciliation of any discrepancy. This work describes the results of the IAEA programme comparing calibration coefficients for radiotherapy dosimetry, using ionization chambers. In this programme, ionization chambers that belong to the SSDLs are calibrated sequentially at the SSDL, at the IAEA, and again at the SSDL. As part of its own quality assurance programme, the IAEA has participated in several regional comparisons organized by Regional Metrology Organizations. The results of the IAEA comparison programme show that the majority of SSDLs are capable of providing calibrations that fall inside the acceptance level of 1.5% compared to the IAEA.

  9. Dental Laboratory Technology Program Standards.

    ERIC Educational Resources Information Center

    Georgia Univ., Athens. Dept. of Vocational Education.

    This guide contains 45 program standards for the dental laboratory technology program conducted in technical institutes in Georgia. The dental laboratory technology program, either diploma or associate degree, is designed to ensure that students gain basic competence in the job skills needed for an entry-level employee in dental laboratory…

  10. Essential Laboratory Activities Guide. Secondary Science.

    ERIC Educational Resources Information Center

    Duval County Schools, Jacksonville, FL.

    This teacher's guide was developed for use in junior and senior high schools in Duval County, Jacksonville, Florida, for the purpose of identifying those secondary science laboratory experiences which are essential to the development of science content knowledge and competency in handling science laboratory equipment and consumables. The guide…

  11. High-dose secondary calibration laboratory accreditation program

    SciTech Connect

    Humphreys, J.C.

    1993-12-31

    There is a need for high-dose secondary calibration laboratories to serve the multi-billion dollar radiation processing industry. This need is driven by the desires of industry for less costly calibrations and faster calibration-cycle response time. Services needed include calibration irradiations of routine processing dosimeters and the supply of reference standard transfer dosimeters for irradiation in the production processing facility. In order to provide measurement quality assurance and to demonstrate consistency with national standards, the high-dose secondary laboratories would be accredited by means of an expansion of an existing National Voluntary Laboratory Accreditation Program. A laboratory performance criteria document is under development to implement the new program.

  12. Laboratory testing for secondary osteoporosis evaluation.

    PubMed

    Adler, Robert A

    2012-08-01

    Osteoporosis has been classified into primary and secondary forms. All patients with osteoporosis should have measurements of 25-hydroxyvitamin D, serum and urine calcium, and some estimation of renal function. There are a wide variety of disorders that lead to secondary osteoporosis, and the tests that confirm these diagnoses are described herein. Making the specific diagnosis is important because treatment of the underlying condition may be sufficient to lessen fracture risk, although some patients may also need usual treatment for osteoporosis. Laboratory testing in addition to a careful history and physical examination will often lead to diagnoses of treatable conditions. PMID:22333732

  13. Characterization of halogen lamps as secondary standard of luminous flux

    NASA Astrophysics Data System (ADS)

    Marques, A. A. R.; Sanchez, O., Jr.; Ferreira, A. F. G., Jr.

    2011-09-01

    This work presents a study of lamps characterization concerning its lamp output, current and voltage drift during seasoning and regarding the use of theses lamps as luminous flux secondary standard. The 200W halogen lamps are seasoned for 30 hours and during the seasoning period the relative drift of the lamp illuminance, current and voltage are measured at each 3 minutes. The illuminance is measured using a photometer with detector head, the lamp voltage is measured using a 6.5 digits voltmeter and the current is measured using a 6.5 digits voltmeter and 0.1 Ohms standard resistor. The lamp current is controlled by a calibrated current power source with stability better than 1 mA. To reduce the stray light, baffles are positioned between the lamp and the detector head. The alignment of experimental assembly is made by a He-Ne Laser. Data of illuminance, current and voltage is acquired by software built in Labview database. Among the 5 lamps seasoned, the best result presents the variation of illuminance of 0.04% per hour. This lamp is chosen to become the secondary standard and its luminous flux is measured using an Ulbricht integrating sphere. This method allows the laboratory to create secondary standard of luminous flux for its routine test and measurements and to supply theses standards for Brazilian industry.

  14. Standard Specifications for Language Laboratory.

    ERIC Educational Resources Information Center

    North Carolina State Dept. of Administration, Raleigh.

    Specifications are presented covering the components of electronic and electro-mechanical equipment, non-electrical materials for the teacher-student positions, and other items of a miscellaneous nature to provide for a complete, workable language laboratory facility. Instructions for the use of specifications are included for the purchaser,…

  15. OSHA Laboratory Standard: Driving Force for Laboratory Safety!

    ERIC Educational Resources Information Center

    Roy, Kenneth R.

    2000-01-01

    Discusses the Occupational Safety and Health Administration's (OSHA's) Laboratory Safety Standards as the major driving force in establishing and maintaining a safe working environment for teachers and students. (Author)

  16. Standardizing laboratory data by mapping to LOINC.

    PubMed

    Khan, Agha N; Griffith, Stanley P; Moore, Catherine; Russell, Dorothy; Rosario, Arnulfo C; Bertolli, Jeanne

    2006-01-01

    The authors describe a pilot project to standardize local laboratory data at five Indian Health Service (IHS) medical facilities by mapping laboratory test names to Logical Observation Identifier Names and Codes (LOINC). An automated mapping tool was developed to assign LOINC codes. At these sites, they were able to map from 63% to 76% of the local active laboratory tests to LOINC using the mapping tool. Eleven percent to 27% of the tests were mapped manually. They could not assign LOINC codes to 6% to 19% of the laboratory tests due to incomplete or incorrect information about these tests. The results achieved approximate other similar efforts. Mapping of laboratory test names to LOINC codes will allow IHS to aggregate laboratory data more easily for disease surveillance and clinical and administrative reporting efforts. This project may provide a model for standardization efforts in other health systems. PMID:16501183

  17. Standardization of Terminology in Laboratory Medicine II

    PubMed Central

    Lee, Kap No; Yoon, Jong-Hyun; Min, Won Ki; Lim, Hwan Sub; Song, Junghan; Chae, Seok Lae; Jang, Seongsoo; Ki, Chang-Seok; Bae, Sook Young; Kim, Jang Su; Kwon, Jung-Ah; Lee, Chang Kyu

    2008-01-01

    Standardization of medical terminology is essential in data transmission between health care institutes and in maximizing the benefits of information technology. The purpose of this study was to standardize medical terms for laboratory observations. During the second year of the study, a standard database of concept names for laboratory terms that covered those used in tertiary health care institutes and reference laboratories was developed. The laboratory terms in the Logical Observation Identifier Names and Codes (LOINC) database were adopted and matched with the electronic data interchange (EDI) codes in Korea. A public hearing and a workshop for clinical pathologists were held to collect the opinions of experts. The Korean standard laboratory terminology database containing six axial concept names, components, property, time aspect, system (specimen), scale type, and method type, was established for 29,340 test observations. Short names and mapping tables for EDI codes and UMLS were added. Synonym tables were prepared to help match concept names to common terms used in the fields. We herein described the Korean standard laboratory terminology database for test names, result description terms, and result units encompassing most of the laboratory tests in Korea. PMID:18756062

  18. Challenges of Implementing Iranian National Laboratory Standards

    PubMed Central

    Safadel, N; Dahim, P; Anjarani, S; Rahnamaye Farzami, M; Samiee, S Mirab; Amini, R; Farsi, Sh; Mahdavi, S; Khodaverdian, K; Rashed Marandi, F

    2013-01-01

    After four years of publishing the Iranian National Laboratory Standard and following a strategic plan to implement its requirements, it was decided to review the taken actions, evaluating the achievements and the failures, as well as analyzing the gaps and planning the interventional activities to resolve the problems. A thorough evaluation revealed that the progress of implementation process varies considerably in different provinces, as well as in laboratories in different public and private sectors. Diversity and heterogeneousity of laboratories throughout the country is one of unresolvable problems. Although we encounter shortage of resources in the country, improper allocation or distribution of resources and budgets make the problems more complicated. Inadequacy of academic training in laboratory sciences has resulted in necessity of holding comprehensive post-graduate training courses. Revising academic curriculum of laboratory sciences could be mostly helpful, moreover there should be organized, training courses with pre-determined practical topics. providing specific technical guidelines, to clarify the required technical details could temporarily fill the training gaps of laboratory staff. Inadequate number of competent auditors was one of the difficulties in universities. Another important challenge returns to laboratory equipment, developing the national controlling system to manage the laboratory equipment in terms of quality and accessibility has been planned in RHL. At last cultural problems and resistance to change are main obstacles that have reduced the pace of standardization, it needs to rationalize the necessity of establishing laboratory standards for all stakeholders. PMID:23865029

  19. Certification standards transfer: from committee to laboratory.

    PubMed

    Lehmann, H P

    1998-12-01

    The ISO 9000 Standards series were developed to provide the international manufacturing industry with a framework to ensure purchased products meet quality criteria. Section 4 of ISO 9001, Quality System Model for Quality Assurance in Design, Development, Production, Installation and Servicing, contains 20 aspects of a quality system that must be addressed by an organization in order to receive ISO 9001 certification. This concept is extended to the clinical laboratory, where a quality system program establishes for the customer (patient/clinician) that the purchased product (requested information on a submitted specimen-test result) meets established quality norms. In order to satisfy the customer, the providing organization must have policies and procedures in place that ensure a quality product, and be certified. To become certified the organization must, through an inspection process, demonstrate to an independent accrediting agency that it meets defined standards. In the United States, the government through the Clinical Laboratory Improvement Amendment (CLIA) 1988 established quality standards for the clinical laboratory. The College of American Pathologists (CAP), through its Laboratory Accreditation Program (LAP), serves as an independent agency that certifies that laboratories meet standards. To demonstrate the applicability of an established clinical laboratory accreditation program to ISO 9001 certification, the standards and checklists of CLIA 1988 and the CAP LAP will be examined to determine their conformance to ISO 9001, Section 4. PMID:10023820

  20. Radioactive Standards Laboratory ININ as a reference laboratory in Mexico.

    PubMed

    GarcíaDíaz, O; MartínezAyala, L; HerreraValadez, L; TovarM, V; Karam, L

    2016-03-01

    The Radioactive Standards Laboratory of the National Institute of Nuclear Research is the National reference laboratory for the measurement of radioactivity in Mexico. It has a gamma-ray spectrometry system with a high-purity Ge-detector for measurements from 50 keV to 2000 keV, and develops standardized radioactive (beta-particle and gamma-ray emitting) sources in different geometries with uncertainties less than or equal to 5% for applications such as the calibration of radionuclide calibrators (clinically used dose calibrators), Ge-detectors and NaI(Tl) detectors. PMID:27358942

  1. Laboratory Technicians in Australian Secondary Schools

    ERIC Educational Resources Information Center

    Hackling, Mark W.

    2009-01-01

    A number of reports have argued that secondary science education needs to be more inquiry oriented and involve authentic and practical investigations to develop scientific literacy and better engage students in learning science. Inquiry-oriented approaches, such as those advocated in the new science national curriculum, require that teachers have…

  2. [International standardization of laboratory information systems].

    PubMed

    Ishigami, T

    1997-06-01

    The standardization of clinical laboratory information systems is one of the most difficult but important subjects for clinical laboratory community and laboratorians. International Standard Organization (ISO) has the projects in this field (JTC1/SC7) which is the part of approach to the international laboratory standardization (ISO/TC 212). US NCCLS and European CEN/TC 251 are working under ISO/TC 212. In the United States, the National Academy for Clinical Biochemistry (NACB) and the American Association for Clinical Chemistry (AACC) had started recently to organize the international collaboration program on the subject. The Japan Society of Clinical Pathology (JSCP)'s Council of Laboratory Informatics had joined this program in 1995. NACB/AACC's Ad Hoc Committee which was organized in 1996 is now trying to collect the general opinions ("what and how") through their internet home page. The current status of the works on the standardization of clinical laboratory information systems in the U.S., Europe, and Japan is reviewed briefly in this article. HL7 electronic data exchange specification and clinical testing coding systems such as LOINC coding project and JSCP's coding project are also reviewed. PMID:9306712

  3. The Nature of Laboratory Learning Experiences in Secondary Science Online

    ERIC Educational Resources Information Center

    Crippen, Kent J.; Archambault, Leanna M.; Kern, Cindy L.

    2013-01-01

    Teaching science to secondary students in an online environment is a growing international trend. Despite this trend, reports of empirical studies of this phenomenon are noticeably missing. With a survey concerning the nature of laboratory activities, this study describes the perspective of 35-secondary teachers from 15-different U.S. states who…

  4. The need for standardization in laboratory networks.

    PubMed

    Peter, Trevor F; Shimada, Yoko; Freeman, Richard R; Ncube, Bekezela N; Khine, Aye-Aye; Murtagh, Maurine M

    2009-06-01

    Expanding health care services for HIV, tuberculosis, and malaria has increased the demand for affordable and reliable laboratory diagnostics in resource-limited countries. Many countries are responding by upgrading their public laboratories and introducing new technology to provide expanded testing services into more regions. This expansion carries the risk of increasing the diversity of an already highly diverse technology and testing platform landscape, making it more difficult to manage laboratory networks across different levels of the health care system. To prevent this trend, countries are recommended to implement policies and guidelines that standardize test menus, technology, platforms, and commodities across multiple laboratories. The benefits of standardization include rational prioritization of resources for capacity development and more efficient supply chain management through volume-based price discounts for reagents and instrument service. Procurement procedures, including specification, prequalification, and contract negotiation, need to align with the standardization policies for maximum benefit. Standardization should be adhered to irrespective of whether procurement is centralized or decentralized or whether carried out by national bodies or development partners. PMID:19461096

  5. Science Laboratory Learning Environments in Junior Secondary Schools

    ERIC Educational Resources Information Center

    Kwok, Ping Wai

    2015-01-01

    A Chinese version of the Science Laboratory Environment Inventory (SLEI) was used to study the students' perceptions of the actual and preferred laboratory learning environments in Hong Kong junior secondary science lessons. Valid responses of the SLEI from 1932 students of grade 7 to grade 9 indicated that an open-ended inquiry approach seldom…

  6. Adaptive secondary P30 prototype: laboratory results

    NASA Astrophysics Data System (ADS)

    Brusa, Guido; Riccardi, Armando; Ragland, Sam; Esposito, Simone; del Vecchio, Ciro; Fini, Luca; Stefanini, Paolo; Biliotti, Valdemaro; Ranfagni, Piero; Salinari, Piero; Gallieni, Daniele; Biasi, Roberto; Mantegazza, Paolo; Sciocco, G.; Noviello, G.; Invernizzi, S.

    1998-09-01

    We present the result of electrical and optical measurements performed on a reduced size adaptive secondary prototype named P30. The design of this concave deformable mirror consists of a thin deformable glass shell whose figure is controlled by electromagnetic actuators and capacitive position senors. Static measurements of the mirror optical figure, performed with a commercial interferometer, have provided the calibration of the internal position sensor. Dynamic test were performed to experimentally derive the mechanical response of the mirror to the electromagnetic actuators in order to design the mirror closed loop control law. The test, although performed on a reduced scale, are representative of the complexity and capabilities of the full size mirror. In fact, all the key-elements of the full size mirror, i.e. central supporting membrane, actuator spacing closed loop control of the device, have been implemented on the prototype.

  7. Outcome Standards for Secondary Marketing Education.

    ERIC Educational Resources Information Center

    Stone, James R., III

    A national panel consisting of marketing education advisory committee members, former marketing education students, and marketing education teacher-coordinators reacted to a list of 34 outcome standards developed through a literature review. The 34 standards focused on program quality, program relevance, individual transition to and growth in the…

  8. 77 FR 16551 - Standards for Private Laboratory Analytical Packages and Introduction to Laboratory Related...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-21

    ... HUMAN SERVICES Food and Drug Administration Standards for Private Laboratory Analytical Packages and Introduction to Laboratory Related Portions of the Food Modernization Safety Act for Private Laboratory... Administration (FDA) is announcing two meetings entitled ``Standards for Private Laboratory Analytical...

  9. 42 CFR 493.1445 - Standard; Laboratory director responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Standard; Laboratory director responsibilities. 493... HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing High Complexity Testing § 493.1445 Standard; Laboratory...

  10. 42 CFR 493.1407 - Standard; Laboratory director responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Standard; Laboratory director responsibilities. 493... HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing Moderate Complexity Testing § 493.1407 Standard; Laboratory...

  11. Teachers' Use of Agricultural Laboratories in Secondary Agricultural Education

    ERIC Educational Resources Information Center

    Shoulders, Catherine W.; Myers, Brian E.

    2012-01-01

    Trends in the agriculture industry require students to have the ability to solve problems associated with scientific content. Agricultural laboratories are considered a main component of secondary agricultural education, and are well suited to provide students with opportunities to develop problem-solving skills through experiential learning. This…

  12. Farm Laboratory Aids Post-Secondary Instruction in Agricultural Production

    ERIC Educational Resources Information Center

    Statler, Larry L.; Juhl, R. J.

    1970-01-01

    Reports a farm laboratory of 1500 swine, 40 beef cattle, 52 sheep, a 300-crop acres, and a full line of leased new farm machinery for post-secondary agricultural production students. A student board of directors manages the demonstration farm. (DM)

  13. 42 CFR 493.1357 - Standard; laboratory director qualifications.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 5 2011-10-01 2011-10-01 false Standard; laboratory director qualifications. 493...; laboratory director qualifications. The laboratory director must be qualified to manage and direct the... laboratory director must possess a current license as a laboratory director issued by the State in which...

  14. 42 CFR 493.1357 - Standard; laboratory director qualifications.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 5 2014-10-01 2014-10-01 false Standard; laboratory director qualifications. 493...; laboratory director qualifications. The laboratory director must be qualified to manage and direct the... laboratory director must possess a current license as a laboratory director issued by the State in which...

  15. 42 CFR 493.1357 - Standard; laboratory director qualifications.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 5 2012-10-01 2012-10-01 false Standard; laboratory director qualifications. 493...; laboratory director qualifications. The laboratory director must be qualified to manage and direct the... laboratory director must possess a current license as a laboratory director issued by the State in which...

  16. 42 CFR 493.1357 - Standard; laboratory director qualifications.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 5 2013-10-01 2013-10-01 false Standard; laboratory director qualifications. 493...; laboratory director qualifications. The laboratory director must be qualified to manage and direct the... laboratory director must possess a current license as a laboratory director issued by the State in which...

  17. An automated secondary standard for calibrating liquid flowmeters

    NASA Technical Reports Server (NTRS)

    Hobart, H. F.

    1976-01-01

    A secondary working standard of flow calibration has been developed to be used in place of a primary weight-time standard, and which can thereby effect a 75 percent reduction in calibration time while maintaining acceptable accuracies. The secondary standard uses six previously calibrated turbine-type flowmeters built into two manifold systems containing automatically switched flow valves. The pair of systems is capable of covering the flow range of 0.0004 to 19 l/s (0.007 to 300 gpm) with the uncertainty in volume flow rate not exceeding + or - 0.25 percent over the range of 0.06 to 19 l/s and not exceeding + or - 0.5 percent over the range 0.0004 to 0.06 1/s. Data reduction and plotting of results are by computer.

  18. 42 CFR 493.1445 - Standard; Laboratory director responsibilities.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 5 2013-10-01 2013-10-01 false Standard; Laboratory director responsibilities. 493.1445 Section 493.1445 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing...

  19. 42 CFR 493.1407 - Standard; Laboratory director responsibilities.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 5 2014-10-01 2014-10-01 false Standard; Laboratory director responsibilities. 493.1407 Section 493.1407 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing...

  20. 42 CFR 493.1407 - Standard; Laboratory director responsibilities.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 5 2013-10-01 2013-10-01 false Standard; Laboratory director responsibilities. 493.1407 Section 493.1407 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing...

  1. 42 CFR 493.1445 - Standard; Laboratory director responsibilities.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 5 2014-10-01 2014-10-01 false Standard; Laboratory director responsibilities. 493.1445 Section 493.1445 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing...

  2. 42 CFR 493.1359 - Standard; PPM laboratory director responsibilities.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 5 2012-10-01 2012-10-01 false Standard; PPM laboratory director responsibilities... AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing Provider-Performed Microscopy (ppm) Procedures § 493.1359...

  3. 42 CFR 493.1359 - Standard; PPM laboratory director responsibilities.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 5 2011-10-01 2011-10-01 false Standard; PPM laboratory director responsibilities... AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing Provider-Performed Microscopy (ppm) Procedures § 493.1359...

  4. 42 CFR 493.1359 - Standard; PPM laboratory director responsibilities.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 5 2013-10-01 2013-10-01 false Standard; PPM laboratory director responsibilities... AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing Provider-Performed Microscopy (ppm) Procedures § 493.1359...

  5. 42 CFR 493.1357 - Standard; laboratory director qualifications.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Standard; laboratory director qualifications. 493... HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing Provider-Performed Microscopy (ppm) Procedures § 493.1357...

  6. 42 CFR 493.1359 - Standard; PPM laboratory director responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Standard; PPM laboratory director responsibilities... AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Personnel for Nonwaived Testing Laboratories Performing Provider-Performed Microscopy (ppm) Procedures § 493.1359...

  7. VIEW OF THE INTERIOR OF BUILDING 125, THE STANDARDS LABORATORY. ...

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

    VIEW OF THE INTERIOR OF BUILDING 125, THE STANDARDS LABORATORY. THE PRIMARY FUNCTION OF THE STANDARDS LABORATORY WAS TO ENSURE AND IMPLEMENT A SYSTEM OF QUALITY CONTROL FOR INCOMING MATERIALS USED IN MANUFACTURING PROCESSES. SEVERAL ENGINEERING CONTROLS WERE USED TO ASSURE ACCURACY OF THE CALIBRATION PROCESSES INCLUDING: FLEX-FREE GRANITE TABLES, AIR LOCKED DOORS, TEMPERATURE CONTROLS, AND A SUPER-CLEAN ENVIRONMENT - Rocky Flats Plant, Standards Laboratory, Immediately north of 215A water tower & adjacent to Third Street, Golden, Jefferson County, CO

  8. The Nature of Laboratory Learning Experiences in Secondary Science Online

    NASA Astrophysics Data System (ADS)

    Crippen, Kent J.; Archambault, Leanna M.; Kern, Cindy L.

    2013-06-01

    Teaching science to secondary students in an online environment is a growing international trend. Despite this trend, reports of empirical studies of this phenomenon are noticeably missing. With a survey concerning the nature of laboratory activities, this study describes the perspective of 35-secondary teachers from 15-different U.S. states who are teaching science online. The type and frequency of reported laboratory activities are consistent with the tradition of face-to-face instruction, using hands-on and simulated experiments. While provided examples were student-centered and required the collection of data, they failed to illustrate key components of the nature of science. The features of student-teacher interactions, student engagement, and nonverbal communications were found to be lacking and likely constitute barriers to the enactment of inquiry. These results serve as a call for research and development focused on using existing communication tools to better align with the activity of science such that the nature of science is more clearly addressed, the work of students becomes more collaborative and authentic, and the formative elements of a scientific inquiry are more accessible to all participants.

  9. Use and qualification of primary and secondary standards employed in quantitative ¹H NMR spectroscopy of pharmaceuticals.

    PubMed

    Rundlöf, Torgny; McEwen, Ian; Johansson, Monika; Arvidsson, Torbjörn

    2014-05-01

    Standards are required in quantitative NMR (qNMR) to obtain accurate and precise results. In this study acetanilide was established and used as a primary standard. Six other chemicals were selected as secondary standards: 3,4,5-trichloropyridine, dimethylterephthalate, maleic acid, 3-sulfolene, 1,4-bis(trimethylsilyl)benzene, and 1,3,5-trimethoxybenzene. The secondary standards were quantified using the primary standard acetanilide. A protocol for qualification and periodic checks of these secondary standards was developed, and used for evaluation of the stability of the compounds. Periodic monitoring of purity was performed for several years. The purity was higher than 99% for all secondary standards. All standards maintained the initial purity during the time period of monitoring, with very small variations in purity (0.3-0.4%). The selected secondary standards were shown to be suitable qNMR standards and that periodic requalification of the standards by qNMR ensures reliable analytical results. These standards have been used in our laboratory for compliance testing of pharmaceutical active substances and approved medicinal products as well as for analysis of suspected illegal medicines. In total more than 1000 samples have been tested using both internal and external standardization and examples are given. PMID:24206940

  10. Standard terminology in the laboratory and classroom

    NASA Technical Reports Server (NTRS)

    Strehlow, Richard A.

    1992-01-01

    Each of the materials produced by modern technologists is associated with a family of immaterials--all the concepts of substance, process, and purpose. It is concepts that are essential to transfer knowledge. It is concepts that are the stuff of terminology. Terminology is standardized today by companies, standards organizations, governments, and other groups. Simply described, it is the pre-negotiation of the meanings of terms. Terminology has become a key issue in businesses, and terminology knowledge is essential in understanding the modern world. The following is a introductory workshop discussing the concepts of terminology and methods of its standardization.

  11. Radioxenon standards used in laboratory inter-comparisons.

    PubMed

    Gohla, H; Auer, M; Cassette, Ph; Hague, R K; Lechermann, M; Nadalut, B

    2016-03-01

    Preparation methods for (133)Xe standards of activity concentration and the results of the 2014 (133)Xe laboratory inter-comparison exercise are described. One element of the quality assurance/quality control (QA/QC) program for laboratories of the International Monitoring System (IMS) will be regular inter-comparison exercises. However, until recently, no activity concentration standards for benchmarking were available. Therefore, two (133)Xe activity concentration reference standards were produced independently by Idaho National Laboratory and Seibersdorf Laboratories and used for the 2014 laboratory inter-comparison exercise. The preparation of a complementary (127)Xe activity concentration standard as well as a (127)Xe laboratory inter-comparison exercise suggests (127)Xe as a suitable isotope for QA/QC of remote IMS noble gas stations. PMID:26682890

  12. Intercomparison of Laboratory Radiance Calibration Standards

    NASA Technical Reports Server (NTRS)

    Pavri, Betina; Chrien, Tom; Green, Robert; Williams, Orlesa

    2000-01-01

    Several standards for radiometric calibration were measured repeatedly with a spectroradiometer in order to understand how they compared in accuracy and stability. The tested radiance standards included a NIST 1000 W bulb and halon panel, two calibrated and stabilized integrating spheres, and a cavity blackbody. Results indicate good agreement between the blackbody and 1000 W bulb/spectralon panel, If these two radiance sources are assumed correct, then the integrating spheres did not conform. to their manufacturer-reported radiances in several regions of the spectrum. More detailed measurements am underway to investigate the discrepancy.

  13. Clinical pathology accreditation: standards for the medical laboratory

    PubMed Central

    Burnett, D; Blair, C; Haeney, M R; Jeffcoate, S L; Scott, K W M; Williams, D L

    2002-01-01

    This article describes a new set of revised standards for the medical laboratory, which have been produced by Clinical Pathology Accreditation (UK) Ltd (CPA). The original standards have been in use since 1992 and it was recognised that extensive revision was required. A standards revision group was established by CPA and this group used several international standards as source references, so that the resulting new standards are compatible with the most recent international reference sources. The aim is to make the assessment of medical laboratories as objective as possible in the future. CPA plans to introduce these standards in the UK in 2003 following extensive consultation with professional bodies, piloting in selected laboratories, and training of assessors. PMID:12354795

  14. NATIONAL ENVIRONMENTAL LABORATORY ACCREDITATION CONFERENCE (NELAC): CONSTITUTION, BYLAWS, AND STANDARDS

    EPA Science Inventory

    The principles and operating procedures for the National Environmental Laboratory Accreditation Conference (NELAC) are contained in the NELAC Constitution and Bylaws. The major portion of this document (standards) contains detailed requirements for accrediting environmental labo...

  15. Dehydration Parameters and Standards for Laboratory Mice

    PubMed Central

    Bekkevold, Christine M; Robertson, Kimberly L; Reinhard, Mary K; Battles, August H; Rowland, Neil E

    2013-01-01

    Water deprivation and restriction are common features of many physiologic and behavioral studies; however, there are no data-driven humane standards regarding mice on water deprivation or restriction studies to guide IACUC, investigators, and veterinarians. Here we acutely deprived outbred CD1 mice of water for as long as 48 h or restricted them to a 75% or 50% water ration; physical and physiologic indicators of dehydration were measured. With acute water deprivation, the appearance and attitude of mice deteriorated after 24 h, and weight loss exceeded 15%. Plasma osmolality was increased, and plasma volume decreased with each time interval. Plasma corticosterone concentration increased with duration of deprivation. There were no differences in any dehydration measures between mice housed in conventional static cages or ventilated racks. Chronic water restriction induced no significant changes compared with ad libitum availability. We conclude that acute water deprivation of as long as 24 h produces robust physiologic changes; however, deprivation in excess of 24 h is not recommended in light of apparent animal distress. Although clearly thirsty, mice adapt to chronic water restriction of as much as 50% of the ad libitum daily ration that is imposed over an interval of as long as 8 d. PMID:23849404

  16. Illinois Occupational Skill Standards: Agricultural Laboratory and Field Technician Cluster.

    ERIC Educational Resources Information Center

    Illinois Occupational Skill Standards and Credentialing Council, Carbondale.

    These Illinois skill standards for the agricultural laboratory and field technician cluster are intended to serve as a guide to workforce preparation program providers as they define content for their programs and to employers as they establish the skills and standards necessary for job acquisition. They could also serve as a mechanism for…

  17. Illinois Occupational Skill Standards: Clinical Laboratory Science/Biotechnology Cluster.

    ERIC Educational Resources Information Center

    Illinois Occupational Skill Standards and Credentialing Council, Carbondale.

    This document, which is intended to serve as a guide for workforce preparation program providers, details the Illinois Occupational Skill Standards for clinical laboratory occupations programs. The document begins with a brief overview of the Illinois perspective on occupational skill standards and credentialing, the process used to develop the…

  18. Primary Standards Laboratory report, 2nd half 1993

    SciTech Connect

    Not Available

    1994-05-01

    The Primary Standards Laboratory (PSL) operates a system-wide primary standards and calibration program for the US Department of Energy, Albuquerque Field Office (DOE/AL). The PSL mission is as follows: to develop and maintain primary standards; to calibrate electrical, physical, and radiation reference standards for customer laboratories (DOE/AL nuclear weapon contractors); to conduct the technical surveys and measurement audits of these laboratories; and to recommend and implement system-wide improvements. This report summarizes activities of the PSL for the second half of 1993 and provides information pertinent to the operation of the DOE/AL Standards and Calibration Program. Specific areas covered include development projects, improvement projects, calibration and special measurements, surveys and audits, customer service, and significant events. Appendixes include certifications and reports;; a discussion about commercial calibration laboratories; PSL memoranda (PSLM); test numbers from the National Institute of Standards and Technology (NIST), formerly the National Bureau of Standards (NBS); and DOE/PSL memoranda on the Standards and Calibration Program with emphasis on traceability of PSL calibrations.

  19. 40 CFR 50.16 - National primary and secondary ambient air quality standards for lead.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... air quality standards for lead. 50.16 Section 50.16 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for lead. (a) The national primary and secondary ambient air quality standards for lead (Pb) and its compounds are 0.15 micrograms per cubic...

  20. 40 CFR 50.12 - National primary and secondary ambient air quality standards for lead.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... air quality standards for lead. 50.12 Section 50.12 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for lead. (a) National primary and secondary ambient air quality standards for lead and its compounds, measured as elemental lead by a reference...

  1. 40 CFR 50.16 - National primary and secondary ambient air quality standards for lead.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... air quality standards for lead. 50.16 Section 50.16 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for lead. (a) The national primary and secondary ambient air quality standards for lead (Pb) and its compounds are 0.15 micrograms per cubic...

  2. 40 CFR 50.12 - National primary and secondary ambient air quality standards for lead.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... air quality standards for lead. 50.12 Section 50.12 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for lead. (a) National primary and secondary ambient air quality standards for lead and its compounds, measured as elemental lead by a reference...

  3. 40 CFR 50.12 - National primary and secondary ambient air quality standards for lead.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... air quality standards for lead. 50.12 Section 50.12 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for lead. (a) National primary and secondary ambient air quality standards for lead and its compounds, measured as elemental lead by a reference...

  4. 40 CFR 50.15 - National primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... air quality standards for ozone. 50.15 Section 50.15 Protection of Environment ENVIRONMENTAL....15 National primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone (O3) is 0.075 parts...

  5. 40 CFR 50.15 - National primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... air quality standards for ozone. 50.15 Section 50.15 Protection of Environment ENVIRONMENTAL....15 National primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone (O3) is 0.075 parts...

  6. 40 CFR 50.15 - National primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... air quality standards for ozone. 50.15 Section 50.15 Protection of Environment ENVIRONMENTAL....15 National primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone (O3) is 0.075 parts...

  7. 40 CFR 50.15 - National primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... air quality standards for ozone. 50.15 Section 50.15 Protection of Environment ENVIRONMENTAL....15 National primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone (O3) is 0.075 parts...

  8. 40 CFR 50.15 - National primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... air quality standards for ozone. 50.15 Section 50.15 Protection of Environment ENVIRONMENTAL....15 National primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone (O3) is 0.075 parts...

  9. DOE standard: The Department of Energy Laboratory Accreditation Program administration

    SciTech Connect

    1998-12-01

    This technical standard describes the US Department of Energy Laboratory Accreditation Program (DOELAP), organizational responsibilities, and the accreditation process. DOELAP evaluates and accredits personnel dosimetry and radiobioassay programs used for worker monitoring and protection at DOE and DOE contractor sites and facilities as required in Title 10, Code of Federal Regulations, Part 835, Occupational Radiation Protection. The purpose of this technical standard is to establish procedures for administering DOELAP and acquiring accreditation.

  10. The Availability and Use of Science Laboratories at Secondary Education Level

    ERIC Educational Resources Information Center

    Raju, T. J. M. S.; Suryanarayana, N. V. S.

    2011-01-01

    This study focuses on the availability and use of Science Laboratories at the secondary education level in Visakhapatnam District of Andhra Pradesh, India. It is commented that most of the schools do not possess well equipped laboratories and even when equipment is available some science teachers are not utilizing the laboratory facilities.…

  11. Agricultural Mechanics Laboratory Management Professional Development Needs of Wyoming Secondary Agriculture Teachers

    ERIC Educational Resources Information Center

    McKim, Billy R.; Saucier, P. Ryan

    2011-01-01

    Accidents happen; however, the likelihood of accidents occurring in the agricultural mechanics laboratory is greatly reduced when agricultural mechanics laboratory facilities are managed by secondary agriculture teachers who are competent and knowledgeable. This study investigated the agricultural mechanics laboratory management in-service needs…

  12. Source geometry factors for HDR 192Ir brachytherapy secondary standard well-type ionization chamber calibrations

    NASA Astrophysics Data System (ADS)

    Shipley, D. R.; Sander, T.; Nutbrown, R. F.

    2015-03-01

    Well-type ionization chambers are used for measuring the source strength of radioactive brachytherapy sources before clinical use. Initially, the well chambers are calibrated against a suitable national standard. For high dose rate (HDR) 192Ir, this calibration is usually a two-step process. Firstly, the calibration source is traceably calibrated against an air kerma primary standard in terms of either reference air kerma rate or air kerma strength. The calibrated 192Ir source is then used to calibrate the secondary standard well-type ionization chamber. Calibration laboratories are usually only equipped with one type of HDR 192Ir source. If the clinical source type is different from that used for the calibration of the well chamber at the standards laboratory, a source geometry factor, ksg, is required to correct the calibration coefficient for any change of the well chamber response due to geometric differences between the sources. In this work we present source geometry factors for six different HDR 192Ir brachytherapy sources which have been determined using Monte Carlo techniques for a specific ionization chamber, the Standard Imaging HDR 1000 Plus well chamber with a type 70010 HDR iridium source holder. The calculated correction factors were normalized to the old and new type of calibration source used at the National Physical Laboratory. With the old Nucletron microSelectron-v1 (classic) HDR 192Ir calibration source, ksg was found to be in the range 0.983 to 0.999 and with the new Isodose Control HDR 192Ir Flexisource ksg was found to be in the range 0.987 to 1.004 with a relative uncertainty of 0.4% (k = 2). Source geometry factors for different combinations of calibration sources, clinical sources, well chambers and associated source holders, can be calculated with the formalism discussed in this paper.

  13. Use of channel electron multipliers as secondary standard detectors at EUV wavelengths

    NASA Technical Reports Server (NTRS)

    Timothy, J. G.; Lapson, L. B.

    1974-01-01

    The procedures available for photometric calibration at extreme ultraviolet (EUV) wavelengths are outlined and the requirements for a secondary standard EUV photomultiplier defined. The performance of a number of commercially available channel electron multipliers over the 304-1350-A wavelength range is described, and their suitability for use as secondary standards is discussed in detail. Although none of the multipliers evaluated fully met the requirements for a secondary standard, it proved possible to calibrate absolutely a Mullard cone channel over the required wavelength range to an accuracy of plus or minus 9% and to employ it as a secondary standard in the calibration of a series of sounding rocket spectrometers.

  14. Use of Channel Electron Multipliers as Secondary Standard Detectors at EUV Wavelengths.

    PubMed

    Timothy, J G; Lapson, L B

    1974-06-01

    The procedures available for photometric calibration at extreme ultraviolet (EUV) wavelengths are outlined and the requirements for a secondary standard EUV photomultiplier defined. The performance of a number of commercially available channel electron multipliers over the 304-1350-A wavelength range is described and their suitability for use as secondary standards discussed in detail. Although none of the multipliers evaluated fully met the requirements for a secondary standard it proved possible to calibrate absolutely a Mullard cone channel over the required wavelength range to an accuracy of +/-9% and to employ it as a secondary standard in the calibration of a series of sounding rocket spectrometers. PMID:20126208

  15. Immediate needs for MQA testing at state secondary calibration laboratories

    SciTech Connect

    Cline, R.

    1993-12-31

    The Calibration Laboratory attempts to provide services that satisfy the needs and requests for a variety of customers. New needs and requests have resulted in calibration of instrumentation outside the original laboratory designs. These tasks require several changes at the laboratory and a need for new support services, especially measurement quality assurance (MQA). The MQA tests are gamma (Cs-137) below 0.5 mrem (5{mu}Sv) per hour and x-ray kVp. Modification to the current gamma (Cs-137) MQA test is recommended because lower intensity fields are commonly measured.

  16. Molecular transformations accompanying the aging of laboratory secondary organic aerosol

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The aging of fresh secondary organic aerosol, generated by alpha-pinene ozonolysis in a flow tube reactor, was studied by passing it through a second reaction chamber where hydroxyl radicals were generated. Two types of experiments were performed: plug injection experiments where the particle mass a...

  17. Role of primary standards, reference materials, and laboratory intercomparisons in an accredited INAA Laboratory

    SciTech Connect

    Bode, P.

    1994-12-31

    The terms accreditation and certification may be confusing to newcomers in the field of quality management. One of the differences between ISO-25 (from the International Organization for Standardization) laboratory accreditation and ISO-9000 laboratory certification is that an ISO-25-accredited laboratory has been assessed by an expert outsider on its technical competence, whereas an ISO-9000-certified laboratory has not. Laboratory accreditation includes, therefore, a certainty to the {open_quotes}customer{close_quotes} that analyses will be performed at the state of the practice with a given accuracy and precision, a certainty according to documented criteria, regularly evaluated by peers during their audits. But, when analyses are being carried out by a certified laboratory, this customer has to take all measures himself to ensure the quality of the results, e.g., by blind control samples.

  18. Laboratory Teaching: Implication on Students' Achievement in Chemistry in Secondary Schools in Ebonyi State of Nigeria

    ERIC Educational Resources Information Center

    Akani, Omiko

    2015-01-01

    This study aimed at investigation of the roles of the laboratory in students' academic achievement in chemistry in secondary schools in Ebonyi State of Nigeria. Four research questions and two hypotheses guided the study. A sample of 240 students selected through simple random sampling technique from ten secondary schools in the 3 Education Zones…

  19. Extensions to the Beta Secondary Standard BSS 2

    NASA Astrophysics Data System (ADS)

    Behrens, R.; Buchholz, G.

    2011-11-01

    Since several years, the irradiation facility for beta radiation, the Beta Secondary Standard BSS 2 developed at PTB, has been in worldwide use for the performance of irradiations with calibrated beta sources. Due to recent developments in eye tumor therapy, in eye lens dosimetry, and in soft- and hardware technology, several extensions have been added to the BSS 2. These extensions are described in this paper: 1. The possibility of using a 106Ru/106Rh beta source was added as this radionuclide is often used in tumor therapy. 2. The (small) contribution due to photon radiation was included in the dose (rate) reported by the BSS 2, as this was missing in the past. 3. The quantity personal dose equivalent at a depth of 3 mm, Hp(3), was implemented due to recent findings on the radio sensitivity of the eye lens regarding cataract induction and the subsequent lowering of the dose limit from 150 mSv down to 20 mSv per year; 4. The correction for ambient conditions (air temperature, pressure, and relative humidity) was improved in order to adequately handle the quantity Hp(3) and in order to extend the range of use beyond 25°C. 5. A checksum test was added to the software to secure the calibration data against (un)intended changes. 6. The connection of the PC and the BSS 2 has been changed to a network interface (TCP/IP) in order to be able to use up-to-date computers not containing a parallel and a serial port. 7. A rod phantom was added in order to make sure the mechanical set-up is of high quality. All these extensions have been implemented in the PTB's BSS 2 model. The routine implementation of extension 1 is still under investigation by the manufacturer. The commercially available BSS 2 will contain extensions 2 to 6 starting approximately in 2012, while extension 7 has already been incorporated since 2011. Extensions 2 to 4 will also be available for old BSS 2 versions via a software update, starting approximately at the beginning of 2012. Extension 6 will be

  20. 40 CFR 50.16 - National primary and secondary ambient air quality standards for lead.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... secondary ambient air quality standards for lead (Pb) and its compounds are 0.15 micrograms per cubic meter, arithmetic mean concentration over a 3-month period, measured in the ambient air as Pb either by: (1) A... primary and secondary ambient air quality standards for Pb are met when the maximum arithmetic...

  1. 40 CFR 50.5 - National secondary ambient air quality standard for sulfur oxides (sulfur dioxide).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 2 2010-07-01 2010-07-01 false National secondary ambient air quality standard for sulfur oxides (sulfur dioxide). 50.5 Section 50.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS §...

  2. State Secondary Career and Technical Education Standards: Creating a Framework from a Patchwork of Policies

    ERIC Educational Resources Information Center

    Castellano, Marisa; Harrison, Linda; Schneider, Sherrie

    2008-01-01

    Many states are currently working to define secondary career and technical education (CTE) content standards that specify the knowledge and skills students are expected to master in CTE program areas. This study explores the progress and status of states in developing statewide secondary CTE standards systems. An exhaustive online query of CTE…

  3. 76 FR 38591 - National Emission Standards for Hazardous Air Pollutants: Secondary Lead Smelting; Extension of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-01

    ... the National Emissions Standards for Hazardous Air Pollutants for Secondary Lead Smelting (76 FR 29032... current rule. DATES: Comments on the proposed rule published May 19, 2011 (76 FR 29032) must be received... Standards for Hazardous Air Pollutants: Secondary Lead Smelting, was published May 19, 2011 (76 FR...

  4. Calibration of the Standards and Calibration Laboratory`s Co{sup 60} Radiation Pool

    SciTech Connect

    Wirtenson, G.R.; White, R.H.

    1993-01-01

    The authors report measurements of dose rates at various locations in the LLNL Standards and Calibrations Laboratory`s Co{sup 60} Radiation Pool. Plots show the dependence of dose rate on radius near the bottom of the pool and the dependence of dose rate on height at a fixed distance from the pool center. The effect of varying sample location within the pool`s dry-well was also investigated.

  5. Laboratory Practices of Beginning Secondary Science Teachers: A Five-Year Study

    ERIC Educational Resources Information Center

    Wong, Sissy S.; Firestone, Jonah B.; Luft, Julie A.; Weeks, Charles B.

    2013-01-01

    During the beginning years of teaching, science teachers develop the knowledge and skills needed to design and implement science laboratories. In this regard, this quantitative study focused on the reported laboratory practices of 61 beginning secondary science teachers who participated in four different induction programs. The results…

  6. Consumer-Oriented Laboratory Activities: A Manual for Secondary Science Students.

    ERIC Educational Resources Information Center

    Anderson, Jacqueline; McDuffie, Thomas E., Jr.

    This document provides a laboratory manual for use by secondary level students in performing consumer-oriented laboratory experiments. Each experiment includes an introductory question outlining the purpose of the investigation, a detailed discussion, detailed procedures, questions to be answered upon completing the experiment, and information for…

  7. Initiating a secondary education apprenticeship program for the clinical laboratory.

    PubMed

    Grau, Adam

    2003-01-01

    The shortage of medical laboratory professionals entering the work field has prompted the clinical laboratory at North Memorial Medical Center to take a proactive stance. Working together with Minnesota School District 287 and North Memorial's education and human resources departments, we have created a high school-age program to teach young students. The focus of this program will be the science behind health care. The state has chosen our program to be the template for the statewide model. Labs in the state will follow this template when starting their new programs. This is the first apprenticeship program in the state of Minnesota for a health-care laboratory. The new program will bring students to our lab and teach them practical skills. These skills will include client services skills (phone etiquette, critical thinking) and technical skills (computer skills, EKGs, testing a patient's blood sugar). More important, it will expose high school students to a career in science--a career option that they might not have been familiar with. This article presents the steps we have completed to introduce this new program. PMID:12701571

  8. Measurement of photoemission and secondary emission from laboratory dust grains

    NASA Technical Reports Server (NTRS)

    Hazelton, Robert C.; Yadlowsky, Edward J.; Settersten, Thomas B.; Spanjers, Gregory G.; Moschella, John J.

    1995-01-01

    The overall goal of this project is experimentally determine the emission properties of dust grains in order to provide theorists and modelers with an accurate data base to use in codes that predict the charging of grains in various plasma environments encountered in the magnetospheres of the planets. In general these modelers use values which have been measured on planar, bulk samples of the materials in question. The large enhancements expected due to the small size of grains can have a dramatic impact upon the predictions and the ultimate utility of these predictions. The first experimental measurement of energy resolved profiles of the secondary electron emission coefficient, 6, of sub-micron diameter particles has been accomplished. Bismuth particles in the size range of .022 to .165 micrometers were generated in a moderate pressure vacuum oven (average size is a function of oven temperature and pressure) and introduced into a high vacuum chamber where they interacted with a high energy electron beam (0.4 to 20 keV). Large enhancements in emission were observed with a peak value, delta(sub max) = 4. 5 measured for the ensemble of particles with a mean size of .022 micrometers. This is in contrast to the published value, delta(sub max) = 1.2, for bulk bismuth. The observed profiles are in general agreement with recent theoretical predictions made by Chow et al. at UCSD.

  9. 42 CFR 493.1239 - Standard: General laboratory systems quality assessment.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Standard: General laboratory systems quality... HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION LABORATORY REQUIREMENTS Quality System for Nonwaived Testing General Laboratory Systems § 493.1239 Standard: General laboratory...

  10. Secondary Social Studies Teachers' Time Commitment When Addressing the Common Core State Standards

    ERIC Educational Resources Information Center

    Kenna, Joshua L.; Russell, William Benedict, III

    2015-01-01

    In 2010 the Common Core State Standards (CCSS) were officially released in America for mathematics and English language arts and soon adopted by 45 of the 50 states. However, within the English langue arts domain there were standards intended for secondary social studies teachers under the title, Common Core State Standards for English Language…

  11. 46 CFR 159.010-3 - Independent laboratory: Standards for acceptance.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 6 2010-10-01 2010-10-01 false Independent laboratory: Standards for acceptance. 159... Laboratory: Acceptance, Recognition, and Termination § 159.010-3 Independent laboratory: Standards for acceptance. (a) To be accepted by the Coast Guard as an independent laboratory, a laboratory must— (1)...

  12. RNAVLab: A virtual laboratory for studying RNA secondary structures based on grid computing technology

    PubMed Central

    Taufer, Michela; Leung, Ming-Ying; Solorio, Thamar; Licon, Abel; Mireles, David; Araiza, Roberto; Johnson, Kyle L.

    2009-01-01

    As ribonucleic acid (RNA) molecules play important roles in many biological processes including gene expression and regulation, their secondary structures have been the focus of many recent studies. Despite the computing power of supercomputers, computationally predicting secondary structures with thermodynamic methods is still not feasible when the RNA molecules have long nucleotide sequences and include complex motifs such as pseudoknots. This paper presents RNAVLab (RNA Virtual Laboratory), a virtual laboratory for studying RNA secondary structures including pseudoknots that allows scientists to address this challenge. Two important case studies show the versatility and functionalities of RNAVLab. The first study quantifies its capability to rebuild longer secondary structures from motifs found in systematically sampled nucleotide segments. The extensive sampling and predictions are made feasible in a short turnaround time because of the grid technology used. The second study shows how RNAVLab allows scientists to study the viral RNA genome replication mechanisms used by members of the virus family Nodaviridae. PMID:19885376

  13. Iodine Standard Materials: Preparation and Inter-Laboratory Comparisons

    SciTech Connect

    D D Jenson; M L Adamic; J E Olson; M G Watrous; C Vockenhuber

    2014-08-01

    The Idaho National Laboratory is preparing to enter the community of AMS practioners who analyze for 129Iodine. We expect to take delivery of a 0.5 MV compact accelerator mass spectrometry system, built by NEC, in the early summer of 2014. The primary mission for this instrument is iodine; it is designed to analyze iodine in the +3 charge state. As part of the acceptance testing for this instrument, both at NEC and on-site in our laboratory, some sort of standard or reference material is needed to verify performance. Appropriate standard materials are not readily available in the commercial marketplace. Small quantities can sometimes be acquired from other laboratories already engaged in iodine analyses. In the longer-term, meaningful quantities of standard materials are needed for routine use in analyses, and for quality control functions1. We have prepared some standard materials, starting with elemental Woodward iodine and NIST SRM 3231 [Iodine-129 Isotopic Standard (high level)] 10-6 solution. The goal was to make mixtures at the 5x10-10, 5x10-11, 5x10-12 ratio levels, along with some unmodified Woodward, in the chemical form of silver iodide. Approximately twenty grams of each of these mixtures were prepared. The elemental Woodward iodine was dissolved in chloroform, then reduced to iodide using sodium bisulfite in water. At this point the NIST spike material was added, in the form of sodium iodide. The mixed iodides were oxidized back to iodine in chloroform using hydrogen peroxide. This oxidation step was essential for isotopic equilibration of the 127 and 129 atoms. The iodine was reduced to iodide using sodium bisulfite as before. Excess sulfites and sulfates were precipitated with barium nitrate. After decanting, silver nitrate was used to precipitate the desired silver iodide. Once the silver iodide was produced, the material was kept in darkness as much as possible to minimize photo-oxidation. The various mixtures were synthesized independently of each

  14. Secondary Social Studies Teachers' Experiences Implementing Common Core State Literacy Standards: A Phenomenological Study

    ERIC Educational Resources Information Center

    Webb, Krista Faith Huskey

    2014-01-01

    The purpose of this phenomenological study was to examine the experiences of secondary social studies teachers who implemented Common Core State Standards for English Language Arts & Literacy in history/social studies, science and technical subjects in social studies courses requiring End of Course Tests at secondary schools in one suburban…

  15. 76 FR 46083 - Secondary National Ambient Air Quality Standards for Oxides of Nitrogen and Sulfur

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-01

    ...This proposed rule is being issued as required by a consent decree governing the schedule for completion of this review of the air quality criteria and the secondary national ambient air quality standards (NAAQS) for oxides of nitrogen and oxides of sulfur. Based on its review, EPA proposes to retain the current nitrogen dioxide (NO2) and sulfur dioxide (SO2) secondary......

  16. Secondary Student Motivation Orientations and Standards-Based Achievement Outcomes

    ERIC Educational Resources Information Center

    Meyer, Luanna H.; McClure, John; Walkey, Frank; Weir, Kirsty F.; McKenzie, Lynanne

    2009-01-01

    Background: Individual student characteristics such as competence motivation, achievement values, and goal orientations have been related in meaningful ways to task attainment. The standards-based National Certificate of Educational Achievement (NCEA) was developed in New Zealand with the intention of strengthening connections between student…

  17. FCS National Standards: Do They Underpin Secondary Curriculum?

    ERIC Educational Resources Information Center

    Smith, Bettye P.; Hall, Helen C.; Jones, Karen H.

    2005-01-01

    This study focuses on the seven standards that are included in a comprehensive (family-oriented) FCS program: (1) Family; (2) Nutrition and Wellness; (3) Human Development; (4) Interpersonal relationships; (5) Career, Community, and Family Connections; (6) Parenting; and (7) Family and Community Services. The study was conducted to better…

  18. Setting the Standard: Role Definition for a Secondary Literacy Coach

    ERIC Educational Resources Information Center

    DiMeglio, Rachele A.; Mangin, Melinda M.

    2010-01-01

    This case introduces Karen, a middle school literacy coach attempting to navigate the myriad tasks she performs. As she aims to satisfy everyone's needs Karen struggles to prioritize and focus her work. The accompanying teaching notes utilize the International Reading Association's "Standards for Middle and High School Literacy Coaches" to…

  19. ACMG clinical laboratory standards for next-generation sequencing

    PubMed Central

    Rehm, Heidi L.; Bale, Sherri J; Bayrak-Toydemir, Pinar; Berg, Jonathan S; Brown, Kerry K; Deignan, Joshua L; Friez, Michael J; Funke, Birgit H; Hegde, Madhuri R; Lyon, Elaine

    2014-01-01

    Next-generation sequencing technologies have been and continue to be deployed in clinical laboratories, enabling rapid transformations in genomic medicine. These technologies have reduced the cost of large-scale sequencing by several orders of magnitude, and continuous advances are being made. It is now feasible to analyze an individual's near-complete exome or genome to assist in the diagnosis of a wide array of clinical scenarios. Next-generation sequencing technologies are also facilitating further advances in therapeutic decision making and disease prediction for at-risk patients. However, with rapid advances come additional challenges involving the clinical validation and use of these constantly evolving technologies and platforms in clinical laboratories. To assist clinical laboratories with the validation of next-generation sequencing methods and platforms, the ongoing monitoring of next-generation sequencing testing to ensure quality results, and the interpretation and reporting of variants found using these technologies, the American College of Medical Genetics and Genomics has developed the following professional standards and guidelines. PMID:23887774

  20. Environmental Sciences Division Toxicology Laboratory standard operating procedures

    SciTech Connect

    Kszos, L.A.; Stewart, A.J.; Wicker, L.F.; Logsdon, G.M.

    1989-09-01

    This document was developed to provide the personnel working in the Environmental Sciences Division's Toxicology Laboratory with documented methods for conducting toxicity tests. The document consists of two parts. The first part includes the standard operating procedures (SOPs) that are used by the laboratory in conducting toxicity tests. The second part includes reference procedures from the US Environmental Protection Agency document entitled Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms, upon which the Toxicology Laboratory's SOPs are based. Five of the SOPs include procedures for preparing Ceriodaphnia survival and reproduction test. These SOPs include procedures for preparing Ceriodaphnia food (SOP-3), maintaining Ceriodaphnia cultures (SOP-4), conducting the toxicity test (SOP-13), analyzing the test data (SOP-13), and conducting a Ceriodaphnia reference test (SOP-15). Five additional SOPs relate specifically to the fathead minnow (Pimephales promelas) larval survival and growth test: methods for preparing fathead minnow larvae food (SOP-5), maintaining fathead minnow cultures (SOP-6), conducting the toxicity test (SOP-9), analyzing the test data (SOP-12), and conducting a fathead minnow reference test (DOP-14). The six remaining SOPs describe methods that are used with either or both tests: preparation of control/dilution water (SOP-1), washing of glassware (SOP-2), collection and handling of samples (SOP-7), preparation of samples (SOP-8), performance of chemical analyses (SOP-11), and data logging and care of technical notebooks (SOP-16).

  1. Designing Experiments on Thermal Interactions by Secondary-School Students in a Simulated Laboratory Environment

    ERIC Educational Resources Information Center

    Lefkos, Ioannis; Psillos, Dimitris; Hatzikraniotis, Euripides

    2011-01-01

    Background and purpose: The aim of this study was to explore the effect of investigative activities with manipulations in a virtual laboratory on students' ability to design experiments. Sample: Fourteen students in a lower secondary school in Greece attended a teaching sequence on thermal phenomena based on the use of information and…

  2. Neutron field characteristics of Ciemat's Neutron Standards Laboratory.

    PubMed

    Guzman-Garcia, Karen A; Mendez-Villafañe, Roberto; Vega-Carrillo, Hector Rene

    2015-06-01

    Monte Carlo calculations were carried out to characterize the neutron field produced by the calibration neutron sources of the Neutron Standards Laboratory at the Research Center for Energy, Environment, and Technology (CIEMAT) in Spain. For (241)AmBe and (252)Cf neutron sources, the neutron spectra, the ambient dose equivalent rates and the total neutron fluence rates were estimated. In the calibration hall, there are several items that modify the neutron field. To evaluate their effects different cases were used, from point-like source in vacuum up to the full model. Additionally, using the full model, the neutron spectra were estimated to different distances along the bench; with these spectra, the total neutron fluence and the ambient dose equivalent rates were calculated. The hall walls induce the largest changes in the neutron spectra and the respective integral quantities. The free-field neutron spectrum is modified due the room return effect. PMID:25468287

  3. 40 CFR 50.5 - National secondary ambient air quality standard for sulfur oxides (sulfur dioxide).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... standard for sulfur oxides (sulfur dioxide). 50.5 Section 50.5 Protection of Environment ENVIRONMENTAL....5 National secondary ambient air quality standard for sulfur oxides (sulfur dioxide). (a) The level... than 0.05 ppm shall be rounded up). (b) Sulfur oxides shall be measured in the ambient air as...

  4. 40 CFR 50.5 - National secondary ambient air quality standard for sulfur oxides (sulfur dioxide).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... standard for sulfur oxides (sulfur dioxide). 50.5 Section 50.5 Protection of Environment ENVIRONMENTAL....5 National secondary ambient air quality standard for sulfur oxides (sulfur dioxide). (a) The level... than 0.05 ppm shall be rounded up). (b) Sulfur oxides shall be measured in the ambient air as...

  5. 40 CFR 50.5 - National secondary ambient air quality standard for sulfur oxides (sulfur dioxide).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... standard for sulfur oxides (sulfur dioxide). 50.5 Section 50.5 Protection of Environment ENVIRONMENTAL....5 National secondary ambient air quality standard for sulfur oxides (sulfur dioxide). (a) The level... than 0.05 ppm shall be rounded up). (b) Sulfur oxides shall be measured in the ambient air as...

  6. 40 CFR 50.5 - National secondary ambient air quality standard for sulfur oxides (sulfur dioxide).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... standard for sulfur oxides (sulfur dioxide). 50.5 Section 50.5 Protection of Environment ENVIRONMENTAL....5 National secondary ambient air quality standard for sulfur oxides (sulfur dioxide). (a) The level... than 0.05 ppm shall be rounded up). (b) Sulfur oxides shall be measured in the ambient air as...

  7. 77 FR 555 - National Emissions Standards for Hazardous Air Pollutants From Secondary Lead Smelting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-05

    ...This action finalizes the residual risk and technology review conducted for the secondary lead smelting source category regulated under national emission standards for hazardous air pollutants. These final amendments include revisions to the emissions limits for lead compounds; revisions to the standards for fugitive emissions; the addition of total hydrocarbon and dioxin and furan emissions......

  8. 40 CFR 50.6 - National primary and secondary ambient air quality standards for PM10.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... air quality standards for PM10. 50.6 Section 50.6 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for PM10. (a) The level of the national... PM10 (particles with an aerodynamic diameter less than or equal to a nominal 10 micrometers) by: (1)...

  9. 40 CFR 50.6 - National primary and secondary ambient air quality standards for PM10.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... air quality standards for PM10. 50.6 Section 50.6 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for PM10. (a) The level of the national... PM10 (particles with an aerodynamic diameter less than or equal to a nominal 10 micrometers) by: (1)...

  10. Development of a quality assurance program for ionizing radiation secondary calibration laboratories

    SciTech Connect

    Heaton, H.T. II; Taylor, A.R. Jr.

    1993-12-31

    For calibration laboratories, routine calibrations of instruments meeting stated accuracy goals are important. One method of achieving the accuracy goals is to establish and follow a quality assurance program designed to monitor all aspects of the calibration program and to provide the appropriate feedback mechanism if adjustments are needed. In the United States there are a number of organizations with laboratory accreditation programs. All existing accreditation programs require that the laboratory implement a quality assurance program with essentially the same elements in all of these programs. Collectively, these elements have been designated as a Measurement Quality Assurance (MQA) program. This paper will briefly discuss the interrelationship of the elements of an MQA program. Using the Center for Devices and Radiological Health (CDRH) X-ray Calibration Laboratory (XCL) as an example, it will focus on setting up a quality control program for the equipment in a Secondary Calibration Laboratory.

  11. Inquiry-based laboratory investigations and student performance on standardized tests in biological science

    NASA Astrophysics Data System (ADS)

    Patke, Usha

    Achievement data from the 3rd International Mathematics and Sciences Study and Program for International Student Assessment in science have indicated that Black students from economically disadvantaged families underachieve at alarming rates in comparison to White and economically advantaged peer groups. The study site was a predominately Black, urban school district experiencing underachievement. The purpose of this correlational study was to examine the relationship between students' use of inquiry-based laboratory investigations and their performance on the Biology End of Course Test, as well as to examine the relationship while partialling out the effects of student gender. Constructivist theory formed the theoretical foundation of the study. Students' perceived levels of experience with inquiry-based laboratory investigations were measured using the Laboratory Program Variable Inventory (LPVI) survey. LPVI scores of 256 students were correlated with test scores and were examined by student gender. The Pearson correlation coefficient revealed a small direct correlation between students' experience in inquiry-based laboratory investigation classes and standardized test scores on the Biology EOCT. A partial correlational analysis indicated that the correlation remained after controlling for gender. This study may prompt a change from teacher-centered to student-centered pedagogy at the local site in order to increase academic achievement for all students. The results of this study may also influence administrators and policy makers to initiate local, state, or nationwide curricular development. A change in curriculum may promote social change as students become more competent, and more able, to succeed in life beyond secondary school.

  12. Evaluation of the Use of Remote Laboratories for Secondary School Science Education

    NASA Astrophysics Data System (ADS)

    Lowe, David; Newcombe, Peter; Stumpers, Ben

    2013-06-01

    Laboratory experimentation is generally considered central to science-based education. Allowing students to "experience" science through various forms of carefully designed practical work, including experimentation, is often claimed to support their learning and motivate their engagement while fulfilling specific curriculum requirements. However, logistical constraints (most especially related to funding) place significant limitations on the ability of schools to provide and maintain high-quality science laboratory experiences and equipment. One potential solution that has recently been the subject of growing interest is the use of remotely accessible laboratories to either supplant, or more commonly to supplement, conventional hands-on laboratories. Remote laboratories allow students and teachers to use high-speed networks, coupled with cameras, sensors, and controllers, to carry out experiments on real physical laboratory apparatus that is located remotely from the student. Research has shown that when used appropriately this can bring a range of potential benefits, including the ability to share resources across multiple institutions, support access to facilities that would otherwise be inaccessible for cost or technical reasons, and provide augmentation of the experimental experience. Whilst there has been considerable work on evaluating the use of remote laboratories within tertiary education, consideration of their role within secondary school science education is much more limited. This paper describes trials of the use of remote laboratories within secondary schools, reporting on the student and teacher reactions to their interactions with the laboratories. The paper concludes that remote laboratories can be highly beneficial, but considerable care must be taken to ensure that their design and delivery address a number of critical issues identified in this paper.

  13. Integrating standard operating procedures and industry notebook standards to evaluate students in laboratory courses.

    PubMed

    Wallert, Mark A; Provost, Joseph J

    2014-01-01

    To enhance the preparedness of graduates from the Biochemistry and Biotechnology (BCBT) Major at Minnesota State University Moorhead for employment in the bioscience industry we have developed a new Industry certificate program. The BCBT Industry Certificate was developed to address specific skill sets that local, regional, and national industry experts identified as lacking in new B.S. and B.A. biochemistry graduates. The industry certificate addresses concerns related to working in a regulated industry such as Good Laboratory Practices, Good Manufacturing Practices, and working in a Quality System. In this article we specifically describe how we developed a validation course that uses Standard Operating Procedures to describe grading policy and laboratory notebook requirements in an effort to better prepare students to transition into industry careers. PMID:24376028

  14. Electrolysis of Water in the Secondary School Science Laboratory with Inexpensive Microfluidics

    ERIC Educational Resources Information Center

    Davis, T. A.; Athey, S. L.; Vandevender, M. L.; Crihfield, C. L.; Kolanko, C. C. E.; Shao, S.; Ellington, M. C. G.; Dicks, J. K.; Carver, J. S.; Holland, L. A.

    2015-01-01

    This activity allows students to visualize the electrolysis of water in a microfluidic device in under 1 min. Instructional materials are provided to demonstrate how the activity meets West Virginia content standards and objectives. Electrolysis of water is a standard chemistry experiment, but the typical laboratory apparatus (e.g., Hoffman cell)…

  15. 40 CFR 50.11 - National primary and secondary ambient air quality standards for oxides of nitrogen (with...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 2 2010-07-01 2010-07-01 false National primary and secondary ambient... PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS § 50.11 National primary and secondary ambient air... national primary annual ambient air quality standard for oxides of nitrogen is 53 parts per billion...

  16. Environmental standards for primary and secondary containment systems and transfer stations

    SciTech Connect

    Maguire, D.M.

    1995-04-01

    Environmental Standards for Primary and Secondary Containment Systems and Transfer Stations will supersede all previous requirements for design of dikes, storage tanks, and transfer stations in order to maintain consistency throughout the Y-12 Plant. This document is organized into six distinct sections, each with a specific purpose. Section I outlines the objectives of the document along with its applications and limitations; this section should be of interest to all readers for essential background information. Section II lists all definitions and is consistent with definitions outlined by environmental regulations. Section III discusses primary containment standards. Section IV outlines secondary containment standards; this section contains the actual standards for the diking of storage tanks and storage containers. Section V discusses transfer station standards. Section VI of this document outlines how exemptions may be granted for specific cases.

  17. Standardized Laboratory Feeding of Larval Aedes japonicus japonicus (Diptera: Culicidae)

    PubMed Central

    Bock, Friederike; Kuch, Ulrich; Pfenninger, Markus; Müller, Ruth

    2015-01-01

    The Asian bush mosquito (Aedes japonicus japonicus, Theobald 1901) is an invasive culicid species which originates in Asia but is nowadays present in northern America and Europe. It is a competent vector for several human disease pathogens. In addition to the public health threat, this invasive species may also be an ecological threat for native container-breeding mosquitoes which share a similar larval habitat. Therefore, it is of importance to gain knowledge on ecological and eco-toxicological features of the Asian bush mosquito. However, optimal laboratory feeding conditions have not yet been established. Standardized feeding methods will be needed in assessing the impact of insecticides or competitional strength of this species. To fill this gap, we performed experiments on food quality and quantity for Ae. j. japonicus larvae. We found out that the commercial fish food TetraMin (Tetra, Melle, Germany) in a dose of 10 mg per larva is the most suitable food tested. We also suggest a protocol with a feeding sequence of seven portions for all larval stages of this species. PMID:26452522

  18. Standardized Laboratory Feeding of Larval Aedes japonicus japonicus (Diptera: Culicidae).

    PubMed

    Bock, Friederike; Kuch, Ulrich; Pfenninger, Markus; Müller, Ruth

    2015-01-01

    The Asian bush mosquito (Aedes japonicus japonicus, Theobald 1901) is an invasive culicid species which originates in Asia but is nowadays present in northern America and Europe. It is a competent vector for several human disease pathogens. In addition to the public health threat, this invasive species may also be an ecological threat for native container-breeding mosquitoes which share a similar larval habitat. Therefore, it is of importance to gain knowledge on ecological and eco-toxicological features of the Asian bush mosquito. However, optimal laboratory feeding conditions have not yet been established. Standardized feeding methods will be needed in assessing the impact of insecticides or competitional strength of this species. To fill this gap, we performed experiments on food quality and quantity for Ae. j. japonicus larvae. We found out that the commercial fish food TetraMin (Tetra, Melle, Germany) in a dose of 10 mg per larva is the most suitable food tested. We also suggest a protocol with a feeding sequence of seven portions for all larval stages of this species. PMID:26452522

  19. "Standards"-based Mathematics Curricula and Secondary Students' Performance on Standardized Achievement Tests

    ERIC Educational Resources Information Center

    Harwell, Michael R.; Post, Thomas R.; Maeda, Yukiko; Davis, Jon D.; Cutler, Arnold L.; Andersen, Edwin; Kahan, Jeremy A.

    2007-01-01

    The current study examined the mathematical achievement of high school students enrolled for 3 years in one of three NSF funded "Standards"-based curricula (IMP, CMIC, MMOW). The focus was on traditional topics in mathematics as measured by subtests of a standardized achievement test and a criterion-referenced test of mathematics achievement.…

  20. 42 CFR 493.1443 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... earned doctoral degree in a chemical, physical, biological, or clinical laboratory science from an... laboratory director under regulations at 42 CFR 493.1415, published March 14, 1990 at 55 FR 9538, on...

  1. 42 CFR 493.1443 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... earned doctoral degree in a chemical, physical, biological, or clinical laboratory science from an... laboratory director under regulations at 42 CFR 493.1415, published March 14, 1990 at 55 FR 9538, on...

  2. 42 CFR 493.1443 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... laboratory director under regulations at 42 CFR 493.1415, published March 14, 1990 at 55 FR 9538, on or... laboratory director must— (1)(i) Be a doctor of medicine or doctor of osteopathy licensed to practice medicine or osteopathy in the State in which the laboratory is located; and (ii) Be certified in...

  3. 42 CFR 493.1443 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... laboratory director under regulations at 42 CFR 493.1415, published March 14, 1990 at 55 FR 9538, on or... laboratory director must— (1)(i) Be a doctor of medicine or doctor of osteopathy licensed to practice medicine or osteopathy in the State in which the laboratory is located; and (ii) Be certified in...

  4. 42 CFR 493.1443 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... laboratory director under regulations at 42 CFR 493.1415, published March 14, 1990 at 55 FR 9538, on or... laboratory director must— (1)(i) Be a doctor of medicine or doctor of osteopathy licensed to practice medicine or osteopathy in the State in which the laboratory is located; and (ii) Be certified in...

  5. 46 CFR 159.010-3 - Independent laboratory: Standards for acceptance.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 6 2013-10-01 2013-10-01 false Independent laboratory: Standards for acceptance. 159..., CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL APPROVAL OF EQUIPMENT AND MATERIALS Independent Laboratory: Acceptance, Recognition, and Termination § 159.010-3 Independent laboratory: Standards...

  6. 46 CFR 159.010-3 - Independent laboratory: Standards for acceptance.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 6 2012-10-01 2012-10-01 false Independent laboratory: Standards for acceptance. 159..., CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL APPROVAL OF EQUIPMENT AND MATERIALS Independent Laboratory: Acceptance, Recognition, and Termination § 159.010-3 Independent laboratory: Standards...

  7. 46 CFR 159.010-3 - Independent laboratory: Standards for acceptance.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 6 2011-10-01 2011-10-01 false Independent laboratory: Standards for acceptance. 159..., CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL APPROVAL OF EQUIPMENT AND MATERIALS Independent Laboratory: Acceptance, Recognition, and Termination § 159.010-3 Independent laboratory: Standards...

  8. 46 CFR 159.010-3 - Independent laboratory: Standards for acceptance.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 6 2014-10-01 2014-10-01 false Independent laboratory: Standards for acceptance. 159..., CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL APPROVAL OF EQUIPMENT AND MATERIALS Independent Laboratory: Acceptance, Recognition, and Termination § 159.010-3 Independent laboratory: Standards...

  9. Identifying the Clinical Laboratory Tests from Unspecified “Other Lab Test” Data for Secondary Use

    PubMed Central

    Pan, Xuequn; Cimino, James J.

    2015-01-01

    Clinical laboratory results are stored in electronic health records (EHRs) as structured data coded with local or standard terms. However, laboratory tests that are performed at outside laboratories are often simply labeled “outside test” or something similar, with the actual test name in a free-text result or comment field. After being aggregated into clinical data repositories, these ambiguous labels impede the retrieval of specific test results. We present a general multi-step solution that can facilitate the identification, standardization, reconciliation, and transformation of such test results. We applied our approach to data in the NIH Biomedical Translational Research Information System (BTRIS) to identify laboratory tests, map comment values to the LOINC codes that will be incorporated into our Research Entities Dictionary (RED), and develop a reference table that can be used in the EHR data extract-transform-load (ETL) process. PMID:26958239

  10. 40 CFR 50.10 - National 8-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... ambient air quality standards for ozone. 50.10 Section 50.10 Protection of Environment ENVIRONMENTAL....10 National 8-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone, measured by...

  11. 40 CFR 50.10 - National 8-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... ambient air quality standards for ozone. 50.10 Section 50.10 Protection of Environment ENVIRONMENTAL....10 National 8-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone, measured by...

  12. 40 CFR 50.9 - National 1-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... ambient air quality standards for ozone. 50.9 Section 50.9 Protection of Environment ENVIRONMENTAL....9 National 1-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 1-hour primary and secondary ambient air quality standards for ozone measured by...

  13. 40 CFR 50.10 - National 8-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... ambient air quality standards for ozone. 50.10 Section 50.10 Protection of Environment ENVIRONMENTAL....10 National 8-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone, measured by...

  14. 40 CFR 50.9 - National 1-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... ambient air quality standards for ozone. 50.9 Section 50.9 Protection of Environment ENVIRONMENTAL....9 National 1-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 1-hour primary and secondary ambient air quality standards for ozone measured by...

  15. 40 CFR 50.9 - National 1-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... ambient air quality standards for ozone. 50.9 Section 50.9 Protection of Environment ENVIRONMENTAL....9 National 1-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 1-hour primary and secondary ambient air quality standards for ozone measured by...

  16. 40 CFR 50.9 - National 1-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... ambient air quality standards for ozone. 50.9 Section 50.9 Protection of Environment ENVIRONMENTAL....9 National 1-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 1-hour primary and secondary ambient air quality standards for ozone measured by...

  17. 40 CFR 50.10 - National 8-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... ambient air quality standards for ozone. 50.10 Section 50.10 Protection of Environment ENVIRONMENTAL....10 National 8-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone, measured by...

  18. 40 CFR 50.10 - National 8-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... ambient air quality standards for ozone. 50.10 Section 50.10 Protection of Environment ENVIRONMENTAL....10 National 8-hour primary and secondary ambient air quality standards for ozone. (a) The level of the national 8-hour primary and secondary ambient air quality standards for ozone, measured by...

  19. Improving Consistency in Large Laboratory Courses: A Design for a Standardized Practical Exam

    ERIC Educational Resources Information Center

    Chen, Xinnian; Graesser, Donnasue; Sah, Megha

    2015-01-01

    Laboratory courses serve as important gateways to science, technology, engineering, and mathematics education. One of the challenges in assessing laboratory learning is to conduct meaningful and standardized practical exams, especially for large multisection laboratory courses. Laboratory practical exams in life sciences courses are frequently…

  20. State Secondary CTE Standards: Developing a Framework out of a Patchwork of Policies

    ERIC Educational Resources Information Center

    Castellano, Marisa; Harrison, Linda; Schneider, Sherrie

    2007-01-01

    Many state educational administrators are currently working to define secondary career and technical education (CTE) content standards that specify the knowledge and skills students are expected to master in CTE program areas. The two-phase project on which this report is based explored (a) the progress and status of states in developing statewide…

  1. Jordanian Vocational, Secondary Education Teachers and Acquisition of the National Professional Standards

    ERIC Educational Resources Information Center

    Al-Dajeh, Hesham I.

    2012-01-01

    The main purpose of this study was to estimate the level of acquisition of the Jordanian national professional standards by vocational, secondary education teachers. Two hundred teachers participated in the study. The data were collected by questionnaire and analyzed using SPSS version 15.0. Questionnaire validity was assessed by content validity,…

  2. The Main Reasons of Declining Educational Standards at Secondary Level in Karachi, Pakistan

    ERIC Educational Resources Information Center

    Faizi, Waqar-un-Nisa; Shakil, Anila Fatima; Lodhi, Farida Azim

    2011-01-01

    The cause of this investigation was to identify the main reasons which decline the educational standards at secondary level in Karachi, Pakistan. It was carried out through survey. The population of the study was both "government and private" schools students and teachers. The views of male and female students and teachers were sought out. One…

  3. Constructing Assessment Model of Primary and Secondary Educational Quality with Talent Quality as the Core Standard

    ERIC Educational Resources Information Center

    Chen, Benyou

    2014-01-01

    Quality is the core of education and it is important to standardization construction of primary and secondary education in urban (U) and rural (R) areas. The ultimate goal of the integration of urban and rural education is to pursuit quality urban and rural education. Based on analysing the related policy basis and the existing assessment models…

  4. Language Arts Core Curriculum: Secondary Core Curriculum Standards. Levels 7-12, Language Arts (Drama). Revised.

    ERIC Educational Resources Information Center

    Utah State Board of Education, Salt Lake City.

    This curriculum guide presents the core standards and objectives for level 7-12 language arts instruction in Utah. The curriculum guide begins with a statement of the elementary and secondary school program of studies and high school graduation requirements. After a brief statement on the importance of language arts and core curriculum standards…

  5. Applying Standards for Leaders to the Selection of Secondary School Principals

    ERIC Educational Resources Information Center

    Wildy, Helen; Pepper, Coral; Guanzhong, Luo

    2011-01-01

    Purpose: The purpose of this paper is to report innovative research aimed at ascertaining whether standards for school leaders could be applied to the process of selecting senior secondary school principals for appointment. Specifically, psychometrically robust measures of performance are sought that would sufficiently differentiate performance to…

  6. INTER-LABORATORY STUDY OF CELLULAR FLUORESCENCE INTENSITY MEASUREMENTS WITH FLUORESCEIN-LABELED MICROBEAD STANDARDS

    EPA Science Inventory

    To determine the precision of cellular fluorescence intensity (FI) measurements derived from labeled microbead standards, FI results were compared from 43 different flow cytometers in 34 laboratories. ll laboratories analyzed prepared aliquots of fluoresceinated calf thymocyte nu...

  7. Physical Properties of Ambient and Laboratory-Generated Secondary Organic Aerosol

    SciTech Connect

    O'Brien, Rachel E.; Neu, Alexander; Epstein, Scott A.; MacMillan, Amanda; Wang, Bingbing; Kelly, Stephen T.; Nizkorodov, Sergey; Laskin, Alexander; Moffet, Ryan C.; Gilles, Mary K.

    2014-06-17

    The size and thickness of organic aerosol particles collected by impaction in five field campaigns were compared to those of laboratory generated secondary organic aerosols (SOA). Scanning transmission x-ray microscopy (STXM) was used to measure the total carbon absorbance (TCA) by individual particles as a function of their projection areas on the substrate. Because they flatten less upon impaction, particles with higher viscosity and surface tension can be identified by a steeper slope on a plot of TCA vs. size. The slopes of the ambient data are statistically similar indicating a small range of average viscosities and surface tensions across five field campaigns. Steeper slopes were observed for the plots corresponding to ambient particles, while smaller slopes were indicative of the laboratory generated SOA. This comparison indicates that ambient organic particles have higher viscosities and surface tensions than those typically generated in laboratory SOA studies.

  8. Differences in Anticipatory Behaviour between Rats (Rattus norvegicus) Housed in Standard versus Semi-Naturalistic Laboratory Environments

    PubMed Central

    Makowska, I. Joanna; Weary, Daniel M.

    2016-01-01

    Laboratory rats are usually kept in relatively small cages, but research has shown that they prefer larger and more complex environments. The physiological, neurological and health effects of standard laboratory housing are well established, but fewer studies have addressed the sustained emotional impact of a standard cage environment. One method of assessing affective states in animals is to look at the animals’ anticipatory behaviour between the presentation of a cue signalling the arrival of a reward and the arrival of that reward. The primary aim of this study was to use anticipatory behaviour to assess the affective state experienced by female rats a) reared and housed long-term in a standard laboratory cage versus a semi-naturalistic environment, and b) before and after treatment with an antidepressant or an anxiolytic. A secondary aim was to add to the literature on anticipatory behaviour by describing and comparing the frequency and duration of individual elements of anticipatory behaviour displayed by rats reared in these two systems. In all experiments, total behavioural frequency was higher in standard-housed rats compared to rats from the semi-naturalistic condition, suggesting that standard-housed rats were more sensitive to rewards and experiencing poorer welfare than rats reared in the semi-naturalistic environment. What rats did in anticipation of the reward also differed between housing treatments, with standard-housed rats mostly rearing and rats from the semi-naturalistic condition mostly sitting facing the direction of the upcoming treat. Drug interventions had no effect on the quantity or form of anticipatory behaviour, suggesting that the poorer welfare experienced by standard-housed rats was not analogous to depression or anxiety, or alternatively that the drug interventions were ineffective. This study adds to mounting evidence that standard laboratory housing for rats compromises rat welfare, and provides further scientific support for

  9. Differences in Anticipatory Behaviour between Rats (Rattus norvegicus) Housed in Standard versus Semi-Naturalistic Laboratory Environments.

    PubMed

    Makowska, I Joanna; Weary, Daniel M

    2016-01-01

    Laboratory rats are usually kept in relatively small cages, but research has shown that they prefer larger and more complex environments. The physiological, neurological and health effects of standard laboratory housing are well established, but fewer studies have addressed the sustained emotional impact of a standard cage environment. One method of assessing affective states in animals is to look at the animals' anticipatory behaviour between the presentation of a cue signalling the arrival of a reward and the arrival of that reward. The primary aim of this study was to use anticipatory behaviour to assess the affective state experienced by female rats a) reared and housed long-term in a standard laboratory cage versus a semi-naturalistic environment, and b) before and after treatment with an antidepressant or an anxiolytic. A secondary aim was to add to the literature on anticipatory behaviour by describing and comparing the frequency and duration of individual elements of anticipatory behaviour displayed by rats reared in these two systems. In all experiments, total behavioural frequency was higher in standard-housed rats compared to rats from the semi-naturalistic condition, suggesting that standard-housed rats were more sensitive to rewards and experiencing poorer welfare than rats reared in the semi-naturalistic environment. What rats did in anticipation of the reward also differed between housing treatments, with standard-housed rats mostly rearing and rats from the semi-naturalistic condition mostly sitting facing the direction of the upcoming treat. Drug interventions had no effect on the quantity or form of anticipatory behaviour, suggesting that the poorer welfare experienced by standard-housed rats was not analogous to depression or anxiety, or alternatively that the drug interventions were ineffective. This study adds to mounting evidence that standard laboratory housing for rats compromises rat welfare, and provides further scientific support for

  10. 42 CFR 493.1405 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...; and (b) The laboratory director must— (1) (i) Be a doctor of medicine or doctor of osteopathy licensed to practice medicine or osteopathy in the State in which the laboratory is located; and (ii) Be... certification; or (2)(i) Be a doctor of medicine, doctor of osteopathy, or doctor of podiatric medicine...

  11. 42 CFR 493.1405 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...; and (b) The laboratory director must— (1) (i) Be a doctor of medicine or doctor of osteopathy licensed to practice medicine or osteopathy in the State in which the laboratory is located; and (ii) Be... certification; or (2)(i) Be a doctor of medicine, doctor of osteopathy, or doctor of podiatric medicine...

  12. 42 CFR 493.1405 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...; and (b) The laboratory director must— (1) (i) Be a doctor of medicine or doctor of osteopathy licensed to practice medicine or osteopathy in the State in which the laboratory is located; and (ii) Be... certification; or (2)(i) Be a doctor of medicine, doctor of osteopathy, or doctor of podiatric medicine...

  13. 42 CFR 493.1405 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... degree in a chemical, physical, biological, or clinical laboratory science from an accredited institution...) Have earned a master's degree in a chemical, physical, biological or clinical laboratory science or..., physical, or biological science or medical technology from an accredited institution; (ii) Have at least...

  14. 42 CFR 493.1405 - Standard; Laboratory director qualifications.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... degree in a chemical, physical, biological, or clinical laboratory science from an accredited institution...) Have earned a master's degree in a chemical, physical, biological or clinical laboratory science or..., physical, or biological science or medical technology from an accredited institution; (ii) Have at least...

  15. SECONDARY STANDARD CALIBRATION, MEASUREMENT AND IRRADIATION CAPABILITIES OF THE INDIVIDUAL MONITORING SERVICE AT THE HELMHOLTZ ZENTRUM MÜNCHEN: ASPECTS OF UNCERTAINTY AND AUTOMATION.

    PubMed

    Greiter, M B; Denk, J; Hoedlmoser, H

    2016-09-01

    The individual monitoring service at the Helmholtz Zentrum München has adopted the recommendations of the ISO 4037 and 6980 standards series as base of its dosimetric systems for X-ray, gamma and beta dosimetry. These standards define technical requirements for radiation spectra and measurement processes, but leave flexibility in the implementation of irradiations as well as in the resulting uncertainty in dose or dose rate. This article provides an example for their practical implementation in the Munich IAEA/WHO secondary standard dosimetry laboratory. It focusses on two aspects: automation issues and uncertainties in calibration. PMID:26838065

  16. Preservice Secondary Teachers Perceptions of College-Level Mathematics Content Connections with the Common Core State Standards for Mathematics

    ERIC Educational Resources Information Center

    Olson, Travis A.

    2016-01-01

    Preservice Secondary Mathematics Teachers (PSMTs) were surveyed to identify if they could connect early-secondary mathematics content (Grades 7-9) in the Common Core State Standards for Mathematics (CCSSM) with mathematics content studied in content courses for certification in secondary teacher preparation programs. Respondents were asked to…

  17. A comparison of two microscale laboratory reporting methods in a secondary chemistry classroom

    NASA Astrophysics Data System (ADS)

    Martinez, Lance Michael

    This study attempted to determine if there was a difference between the laboratory achievement of students who used a modified reporting method and those who used traditional laboratory reporting. The study also determined the relationships between laboratory performance scores and the independent variables score on the Group Assessment of Logical Thinking (GALT) test, chronological age in months, gender, and ethnicity for each of the treatment groups. The study was conducted using 113 high school students who were enrolled in first-year general chemistry classes at Pueblo South High School in Colorado. The research design used was the quasi-experimental Nonequivalent Control Group Design. The statistical treatment consisted of the Multiple Regression Analysis and the Analysis of Covariance. Based on the GALT, students in the two groups were generally in the concrete and transitional stages of the Piagetian cognitive levels. The findings of the study revealed that the traditional and the modified methods of laboratory reporting did not have any effect on the laboratory performance outcome of the subjects. However, the students who used the traditional method of reporting showed a higher laboratory performance score when evaluation was conducted using the New Standards rubric recommended by the state. Multiple Regression Analysis revealed that there was a significant relationship between the criterion variable student laboratory performance outcome of individuals who employed traditional laboratory reporting methods and the composite set of predictor variables. On the contrary, there was no significant relationship between the criterion variable student laboratory performance outcome of individuals who employed modified laboratory reporting methods and the composite set of predictor variables.

  18. 42 CFR 493.1406 - Standard; Laboratory director qualifications on or before February 28, 1992.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... exists; and (b) The laboratory director must: (1) Be a physician certified in anatomical or clinical... 42 Public Health 5 2010-10-01 2010-10-01 false Standard; Laboratory director qualifications on or... SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION...

  19. 48 CFR 1552.211-80 - Data standards for the transmission of laboratory measurement results.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... transmission of laboratory measurement results. 1552.211-80 Section 1552.211-80 Federal Acquisition Regulations... Texts of Provisions and Clauses 1552.211-80 Data standards for the transmission of laboratory... Transmission of Laboratory Measurement Results (OCT 2000) This contract requires the transmission...

  20. Frequency standards from government laboratories over the next 25 years

    NASA Technical Reports Server (NTRS)

    Maleki, L.

    1994-01-01

    Based on a number of considerations including projected needs, current status, future trends, and status of key technologies, an attempt is made to project the future of government supported frequency standards development in the next 25 years.

  1. U.S. Geological Survey Standard Reference Sample Project: Performance Evaluation of Analytical Laboratories

    USGS Publications Warehouse

    Long, H. Keith; Daddow, Richard L.; Farrar, Jerry W.

    1998-01-01

    Since 1962, the U.S. Geological Survey (USGS) has operated the Standard Reference Sample Project to evaluate the performance of USGS, cooperator, and contractor analytical laboratories that analyze chemical constituents of environmental samples. The laboratories are evaluated by using performance evaluation samples, called Standard Reference Samples (SRSs). SRSs are submitted to laboratories semi-annually for round-robin laboratory performance comparison purposes. Currently, approximately 100 laboratories are evaluated for their analytical performance on six SRSs for inorganic and nutrient constituents. As part of the SRS Project, a surplus of homogeneous, stable SRSs is maintained for purchase by USGS offices and participating laboratories for use in continuing quality-assurance and quality-control activities. Statistical evaluation of the laboratories results provides information to compare the analytical performance of the laboratories and to determine possible analytical deficiences and problems. SRS results also provide information on the bias and variability of different analytical methods used in the SRS analyses.

  2. Parachute drawing standards currently in use at Sandia National Laboratories

    SciTech Connect

    Ronquillo, K.L.

    1988-01-01

    A need exists in the parachute industry for a standard method of defining and guiding the formation of textile drawings. Textile drawings have their own unique problems associated with their development. Unlike mechanical parts, textiles have no mass in cross section. Therefore, a cross-sectioned view has no hash marks. Hidden views are not usually incorporated in textile drawings as they are easily confused with stitch formations. Side views of textile parts are depicted using only one line to show thickness. This report will address these and other unique drawing problems associated with the development of parachute drawings and will offer, as a base, standards to be used when developing these drawings. 21 figs.

  3. Updated standards and processes for accreditation of echocardiographic laboratories from The European Association of Cardiovascular Imaging.

    PubMed

    Popescu, Bogdan A; Stefanidis, Alexandros; Nihoyannopoulos, Petros; Fox, Kevin F; Ray, Simon; Cardim, Nuno; Rigo, Fausto; Badano, Luigi P; Fraser, Alan G; Pinto, Fausto; Zamorano, Jose Luis; Habib, Gilbert; Maurer, Gerald; Lancellotti, Patrizio; Andrade, Maria Joao; Donal, Erwan; Edvardsen, Thor; Varga, Albert

    2014-07-01

    Standards for echocardiographic laboratories were proposed by the European Association of Echocardiography (now the European Association of Cardiovascular Imaging) 7 years ago in order to raise standards of practice and improve the quality of care. Criteria and requirements were published at that time for transthoracic, transoesophageal, and stress echocardiography. This paper reassesses and updates the quality standards to take account of experience and the technical developments of modern echocardiographic practice. It also discusses quality control, the incentives for laboratories to apply for accreditation, the reaccreditation criteria, and the current status and future prospects of the laboratory accreditation process. PMID:24662444

  4. Profile of laboratory instruction in secondary school level chemistry and indication for reform

    NASA Astrophysics Data System (ADS)

    Wang, Mei

    This study is a profile of the laboratory component of instruction in secondary school level chemistry. As one of several companion studies, the purpose of the study is to investigate present practices related to instruction as a means of producing reform that improve cognitive and non-cognitive learning outcomes. Five hundred-forty students, from 18 chemistry classes taught by 12 teachers in ten high schools were involved in this study. Three schools included public and private schools, urban school, suburban schools, and rural schools. Three levels or types of chemistry courses were offered in these schools: school regular chemistry for college bound students, Chemistry in the Community or "ChemCom" for non-college bound students, and a second year of chemistry or advanced placement chemistry. Laboratory sessions in each of these three levels of courses were observed, videotaped, and later analyzed using the Modified Revised Science Teachers Behaviors Inventory (MR-STBI). The 12 chemistry teachers, eight science supervisors, and selected students were interviewed to determine their professional backgrounds and other factors that might influence how they teach, how they think, and how they learn. The following conclusions developed from the research are: (1) The three levels of chemistry courses are offered across high schools of varying sizes and locations. (2) Teachers perceive that students come to chemistry classes poorly prepared to effectively carry out laboratory experiences and/or investigations. (3) While students indicated that they are able to effectively use math skills in analyzing the results of chemistry laboratory experiments, teachers, in general, are not satisfied with the level at which students are prepared to use these skills, or to use writing skills. (4) Students working in pairs, is the typical approach. Group cooperation is sometimes used in carrying out the laboratory component of chemistry instruction in the ChemCom and AP chemistry

  5. Minimum Experimental Standards in the Laboratory Search for Gravity Effects

    SciTech Connect

    Reiss, H.; Hathaway, G.

    2006-01-20

    Peer-reviewed reports of experimental modifications of gravity over rotating superconductors (Podkletnov, 1992), or of a weight increase during cool-down of superconductors (Reiss, 2003), have stimulated considerable recent discussion. Precise descriptions of sample composition, ancillary apparatus and balance specifications were not given by Podkletnov. Accordingly, a carefully-designed replication (Hathaway, 2003) could not confirm the experimental findings possibly because detailed information was unavailable. On the other hand Tajmar et al. (Tajmar, 2005) failed to replicate previous results due to lack of serious analysis of weight measurements of solids in atmosphere and subject to buoyancy and wetting forces. Also an acceptable measuring technique and a detailed analysis of the sample's temperature excursions versus time were not performed. Both examples clearly indicate that minimum standards of experimental precision, accounting for boundary conditions, error analysis and thorough reporting of the experiment are necessary to distinguish a true anomaly from prosaic explanations and artefacts. We will discuss some types of errors that can occur and how standards of analysis and reporting should be improved to allow others a thorough physical understanding.

  6. Laboratory-scale evaluation of secondary alkaline zinc batteries for electric vehicles

    NASA Astrophysics Data System (ADS)

    Striebel, Kathryn A.; McLarnon, Frank R.; Cairns, Elton J.

    Two types of secondary zinc cell have been evaluated in our laboratory to assess their suitability to power an electric van. Single cells were charged and discharged with constant-current cycles as well as with controlled-power discharge profiles, scaled to the predicted mass of a full-size battery. Both cells were able to meet the requirements for power discharge specified by the so-called Simplified Federal Urban Driving Schedule (SFUDS) early in life (the first 15 cycles). The Zn/air cell achieved an average of 72 SFUDS repetions (7.2 h) per discharge. The Zn/NiOOH cell achieved an average of 51 SFUDS repetitions (5.1 h) per discharge. The bifunctional air electrodes did not reach oxygen-evolution potentials during the 8-s regenerative breaking portions of the SFUDS cycle.

  7. Laboratory measurements of radiance and reflectance spectra of dilute secondary-treated sewage sludge

    NASA Technical Reports Server (NTRS)

    Witte, W. G.; Usry, J. W.; Whitlock, C. H.; Gurganus, E. A.

    1977-01-01

    The National Aeronautics and Space Administration (NASA), in cooperation with the Environmental Protection Agency (EPA) and the National Oceanic and Atmospheric Administration (NOAA), conducted a research program to evaluate the feasibility of remotely monitoring ocean dumping of waste products such as acid and sewage sludge. One aspect of the research program involved the measurements of upwelled spectral signatures for sewage-sludge mixtures of different concentrations in an 11600-liter tank. This paper describes the laboratory arrangement and presents radiance and reflectance spectra in the visible and near-infrared ranges for concentrations ranging from 9.7 to 180 ppm of secondary-treated sewage sludge mixed with two types of base water. Results indicate that upwelled radiance varies in a near-linear manner with concentration and that the sludge has a practically flat signal response between 420 and 970 nm. Reflectance spectra were obtained for the sewage-sludge mixtures at all wavelengths and concentrations.

  8. 40 CFR 50.9 - National 1-hour primary and secondary ambient air quality standards for ozone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...-hour standards are codified in 40 CFR part 81. (c) EPA's authority under paragraph (b) of this section... ambient air quality standards for ozone. 50.9 Section 50.9 Protection of Environment ENVIRONMENTAL....9 National 1-hour primary and secondary ambient air quality standards for ozone. (a) The level...

  9. 40 CFR Appendix P to Part 50 - Interpretation of the Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Secondary National Ambient Air Quality Standards for Ozone P Appendix P to Part 50 Protection of Environment... Air Quality Standards for Ozone 1. General (a) This appendix explains the data handling conventions... air quality standards for ozone (O3) specified in § 50.15 are met at an ambient O3 air...

  10. 40 CFR Appendix P to Part 50 - Interpretation of the Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Secondary National Ambient Air Quality Standards for Ozone P Appendix P to Part 50 Protection of Environment... Air Quality Standards for Ozone 1. General (a) This appendix explains the data handling conventions... air quality standards for ozone (O3) specified in § 50.15 are met at an ambient O3 air...

  11. 40 CFR Appendix P to Part 50 - Interpretation of the Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Secondary National Ambient Air Quality Standards for Ozone P Appendix P to Part 50 Protection of Environment... Air Quality Standards for Ozone 1. General (a) This appendix explains the data handling conventions... air quality standards for ozone (O3) specified in § 50.15 are met at an ambient O3 air...

  12. 40 CFR Appendix P to Part 50 - Interpretation of the Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Secondary National Ambient Air Quality Standards for Ozone P Appendix P to Part 50 Protection of Environment... Air Quality Standards for Ozone 1. General (a) This appendix explains the data handling conventions... air quality standards for ozone (O3) specified in § 50.15 are met at an ambient O3 air...

  13. Secondary students in professional laboratories: Discoveries about science learning in a community of practitioners

    NASA Astrophysics Data System (ADS)

    Song, Mary Elizabeth

    This study explores what educators may learn from the experiences of secondary students working in professional scientific laboratories. My investigation is guided by the methodology of phenomenological; I depend primarily on interviews conducted with students and professional researchers. This material is supported primarily by on-site observations, and by informal conversations between me and the study participants. My dissertation has three goals: (one) to use the work of secondary students in scientific research laboratories to consider how they know the discipline; (two) to distinguish the students' professional accomplishments from science learning at school; and, (three) to engage readers in a reflection about authority within the scientific community, and the possibility that by accomplishing research, students take their legitimate place among those who construct scientific knowledge. My methods and focus have allowed me to capture qualities of the student narratives that support the emergence of three major themes: the importance of doing "real work" in learning situations; the inapplicability of "school learning" to professional research arenas; and the inclusive nature of the scientific community. At the same time, the study is confined by the narrow pool of participants I interviewed over a short period of time. These talented students were all academically successful, articulate, "well-rounded" and in this sense, mature. They typically had strong family support, and they talked about ideas with their parents. Indeed, the students were all capable story-tellers who were anxious to share their experiences publicly. Yet they themselves remind the reader of their struggles to overcome naivete in the lab. By doing so they suggested to me that their experiences might be accessible to a broad range of young men and women; thus this study is a good beginning for further research.

  14. NATIONAL ENVIRONMENTAL LABORATORY ACCREDITATION CONFERENCE; CONSTITUTION, BYLAWS AND STANDARDS: APPROVED MAY 25, 2001

    EPA Science Inventory

    The principles and operating procedures for the National Environmental Laboratory Accreditation Conference (NELAC) are contained in the NELAC Constitution and Bylaws. The major portion of this document (standards) contains detailed requirements for accrediting environmental labo...

  15. 78 FR 63999 - Notice of Vitamin D Standardization Program (VDSP) Symposium: Tools To Improve Laboratory...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health Notice of Vitamin D Standardization Program (VDSP) Symposium: Tools To Improve Laboratory Measurement SUMMARY: The National Institutes of Health, Office...

  16. The effects of mentoring upon first year Missouri secondary science teachers` stages of concern with respect to science laboratory utilization

    SciTech Connect

    Sode, J.R.

    1994-12-31

    This study tested the hypothesis that {open_quotes}There is no statistically significant mentoring variable, or linear combination of mentoring variables, affecting Missouri beginning secondary science teachers` SOC (Stages of Concern) with respect to science laboratory utilization. Demographic data analysis, SOC maximum peak score analysis, item analysis, Pearson r correlation analysis, and factor analysis techniques were applied to data collected from three survey instruments-Science Laboratory Concerns. Mentoring Perceptions, and Demographic-designed for this study. All potential respondents were included in the original mailings. A total of eighty-seven (51.1%) usable responses were obtained. The findings of the study were that four mentoring factors-Professional Assistance, Science Laboratory Assistance, Mentor Availability, and Classroom Instructional Assistance-were used to determine mentoring affects upon Missouri beginning secondary science teachers. Also, the most prevalent stage of concern was Stage 4 (Consequences). This indicated that Missouri beginning secondary science teachers were primarily concerned with the impact of science laboratory utilization upon student learning. Mentoring Factor Four (Classroom Instructional Assistance) was found to be significantly related to Missouri beginning secondary science teachers` stages of concern with respect to science laboratory utilization. Individual mentoring items also were found to be significantly related to science laboratory utilization stages of concern. These relationships were both positive and negative.

  17. [Presentation for the use of a clinical laboratories of standards of metrology (Document A)].

    PubMed

    Dumontet, M; Fuss-Ohlen, I; Beaudeux, J-L; Perrin, A; Vassault, A; Giroud, C; Le Moel, G; Guitel, F; Ziani, S; Zerah, S; Robineau, S; Braconnier, F

    2004-01-01

    Clinical laboratories shall have a perfect control of "in vitro diagnostic medical devices" to ensure the quality of their analytical results. This introductory presentation to a serie of documents of recommendations tackles the different standards of metrology concerning the requirements to reference materials, metrological traceability, metrological confirmation, management of measurement as well as uncertainty of measurement. The standards concerning clinical laboratories are then succinctly described. PMID:15047503

  18. 75 FR 20595 - Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen and Oxides...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-20

    ... for Oxides of Nitrogen and Oxides of Sulfur: First External Review Draft (75 FR 11877; March 12, 2010... AGENCY Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen and Oxides... a proposal addressing the nitrogen oxides (NO X ) and sulfur oxides (SO X ) secondary...

  19. Designing experiments on thermal interactions by secondary-school students in a simulated laboratory environment

    NASA Astrophysics Data System (ADS)

    Lefkos, Ioannis; Psillos, Dimitris; Hatzikraniotis, Euripides

    2011-07-01

    Background and purpose: The aim of this study was to explore the effect of investigative activities with manipulations in a virtual laboratory on students' ability to design experiments. Sample Fourteen students in a lower secondary school in Greece attended a teaching sequence on thermal phenomena based on the use of information and communication technology, and specifically of the simulated virtual laboratory 'ThermoLab'. Design and methods A pre-post comparison was applied. Students' design of experiments was rated in eight dimensions; namely, hypothesis forming and verification, selection of variables, initial conditions, device settings, materials and devices used, process and phenomena description. A three-level ranking scheme was employed for the evaluation of students' answers in each dimension. Results A Wilcoxon signed-rank test revealed a statistically significant difference between the students' pre- and post-test scores. Additional analysis by comparing the pre- and post-test scores using the Hake gain showed high gains in all but one dimension, which suggests that this improvement was almost inclusive. Conclusions We consider that our findings support the statement that there was an improvement in students' ability to design experiments.

  20. The adaptive secondary mirror for the Large Binocular Telescope: results of acceptance laboratory test

    NASA Astrophysics Data System (ADS)

    Riccardi, A.; Xompero, M.; Zanotti, D.; Busoni, L.; Del Vecchio, C.; Salinari, P.; Ranfagni, P.; Brusa Zappellini, G.; Biasi, R.; Andrighettoni, M.; Gallieni, D.; Anaclerio, E.; Martin, H. M.; Miller, S. M.

    2008-07-01

    The first of the two Gregorian Adaptive Secondary Mirror (ASM) units for the Large Binocular Telescope (LBT) has been fully integrated and tested for laboratory acceptance. The LBT unit represents the most advanced ASM device existing in hardware. The unit has 672 electro-magnetic force actuators to change the shape of the 1.6mm-thick and 911mm-diameter Zerodur shell. The actuators control the mirror figure using the position feedback from the internal metrology provided by co-located capacitive sensors. The on-board real-time control electronics has a parallel computational power of 163Gflop/s providing not only the internal control of the unit with a 72kHz loop but also the wavefront reconstruction for the 1kHz Adaptive Optics loop. The paper describes the final configuration of the system and reports the results of the characterization and optimization process together with the results of the laboratory acceptance tests.

  1. Los Alamos National Laboratory standard nuclear material container

    SciTech Connect

    Stone, Timothy A

    2009-01-01

    The shut down of United States (U.S.) nuclear-weapons production activities in the early 1990s left large quantities of nuclear materials throughout the U.S. Department of Energy (DOE) complex in forms not intended for long-term storage. In May 1994, the Defense Nuclear Facilities Safety Board (DNFSB) issued Recommendation 94-1, which called for the stabilization and disposition of 'thousands of containers of plutonium-bearing liquids and solids' in the DOE complex, including LANL in the nuclear-weapons-manufacturing pipeline when manufacturing ended. This resulted in the development of the 3013 standard with container requirements for long term storage (up to 50 years). A follow on was the Criteria For Interim Storage of Plutonium Bearing Materials, Charles B. Curtis, in 1996 to address storage other than the 3013 standard for shorter time frames. In January 2000, the DNFSB issued Recommendation 2000-1, which stated the need for LANL to repackage 'about one ton of plutonium metal and oxide,' declared excess to Defense Program (DP) needs. The DNFSB recommended that LANL 'stabilize and seal within welded containers with an inert atmosphere the plutonium oxides ... which are not yet in states conforming to the long-term storage envisaged by DOE-STD-3013,' and that they '... enclose existing and newly-generated legacy plutonium metal in sealed containers with an inert atmosphere,' and 'remediate and/or safely store the various residues.' Recommendation 2000-1, while adding to the number of items needing remediation, also reiterated the need to address remaining items from 1994-1 in a timely fashion. Since timetables slipped, the DNFSB recommended that the Complex 'prioritize and schedule tasks according to the consideration of risks.' In March 2005, the DNFSB issued Recommendation 2005-1. This recommendation addresses the need for a consistent set of criteria across the DOE complex for the interim storage of nuclear material packaged outside an engineered barrier. The

  2. Creating Cost-Effective DNA Size Standards for Use in Teaching and Research Laboratories

    ERIC Educational Resources Information Center

    Shultz, Jeff

    2011-01-01

    I have devised a method with which a molecular size standard can be readily manufactured using Lambda DNA and PCR. This method allows the production of specific sized DNA fragments and is easily performed in a standard molecular biology laboratory. The material required to create these markers can also be used to provide a highly robust and…

  3. 40 CFR 262.103 - What is the scope of the laboratory environmental management standard?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 27 2013-07-01 2013-07-01 false What is the scope of the laboratory environmental management standard? 262.103 Section 262.103 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS APPLICABLE TO GENERATORS OF HAZARDOUS...

  4. 40 CFR 262.103 - What is the scope of the laboratory environmental management standard?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 26 2011-07-01 2011-07-01 false What is the scope of the laboratory environmental management standard? 262.103 Section 262.103 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS APPLICABLE TO GENERATORS OF HAZARDOUS...

  5. 40 CFR 262.103 - What is the scope of the laboratory environmental management standard?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 25 2010-07-01 2010-07-01 false What is the scope of the laboratory environmental management standard? 262.103 Section 262.103 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS APPLICABLE TO GENERATORS OF HAZARDOUS...

  6. 48 CFR 1511.011-80 - Data standards for the transmission of laboratory measurement results.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Data standards for the transmission of laboratory measurement results. 1511.011-80 Section 1511.011-80 Federal Acquisition Regulations System ENVIRONMENTAL PROTECTION AGENCY ACQUISITION PLANNING DESCRIBING AGENCY NEEDS 1511.011-80 Data standards for the transmission...

  7. 48 CFR 1511.011-80 - Data standards for the transmission of laboratory measurement results.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 6 2012-10-01 2012-10-01 false Data standards for the transmission of laboratory measurement results. 1511.011-80 Section 1511.011-80 Federal Acquisition Regulations System ENVIRONMENTAL PROTECTION AGENCY ACQUISITION PLANNING DESCRIBING AGENCY NEEDS 1511.011-80 Data standards for the transmission...

  8. 40 CFR Appendix I to Part 50 - Interpretation of the 8-Hour Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... and Secondary National Ambient Air Quality Standards for Ozone I Appendix I to Part 50 Protection of... Secondary National Ambient Air Quality Standards for Ozone 1. General. This appendix explains the data... secondary ambient air quality standards for ozone specified in § 50.10 are met at an ambient ozone...

  9. 40 CFR Appendix I to Part 50 - Interpretation of the 8-Hour Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... and Secondary National Ambient Air Quality Standards for Ozone I Appendix I to Part 50 Protection of... Secondary National Ambient Air Quality Standards for Ozone 1. General. This appendix explains the data... secondary ambient air quality standards for ozone specified in § 50.10 are met at an ambient ozone...

  10. 40 CFR Appendix I to Part 50 - Interpretation of the 8-Hour Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... and Secondary National Ambient Air Quality Standards for Ozone I Appendix I to Part 50 Protection of... Secondary National Ambient Air Quality Standards for Ozone 1. General. This appendix explains the data... secondary ambient air quality standards for ozone specified in § 50.10 are met at an ambient ozone...

  11. 40 CFR Appendix I to Part 50 - Interpretation of the 8-Hour Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... and Secondary National Ambient Air Quality Standards for Ozone I Appendix I to Part 50 Protection of... Secondary National Ambient Air Quality Standards for Ozone 1. General. This appendix explains the data... secondary ambient air quality standards for ozone specified in § 50.10 are met at an ambient ozone...

  12. 40 CFR Appendix I to Part 50 - Interpretation of the 8-Hour Primary and Secondary National Ambient Air Quality Standards for Ozone

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... and Secondary National Ambient Air Quality Standards for Ozone I Appendix I to Part 50 Protection of... Secondary National Ambient Air Quality Standards for Ozone 1. General. This appendix explains the data... secondary ambient air quality standards for ozone specified in § 50.10 are met at an ambient ozone...

  13. Standardization of Hemagglutination Inhibition Assay for Influenza Serology Allows for High Reproducibility between Laboratories.

    PubMed

    Zacour, Mary; Ward, Brian J; Brewer, Angela; Tang, Patrick; Boivin, Guy; Li, Yan; Warhuus, Michelle; McNeil, Shelly A; LeBlanc, Jason J; Hatchette, Todd F

    2016-03-01

    Standardization of the hemagglutination inhibition (HAI) assay for influenza serology is challenging. Poor reproducibility of HAI results from one laboratory to another is widely cited, limiting comparisons between candidate vaccines in different clinical trials and posing challenges for licensing authorities. In this study, we standardized HAI assay materials, methods, and interpretive criteria across five geographically dispersed laboratories of a multidisciplinary influenza research network and then evaluated intralaboratory and interlaboratory variations in HAI titers by repeatedly testing standardized panels of human serum samples. Duplicate precision and reproducibility from comparisons between assays within laboratories were 99.8% (99.2% to 100%) and 98.0% (93.3% to 100%), respectively. The results for 98.9% (95% to 100%) of the samples were within 2-fold of all-laboratory consensus titers, and the results for 94.3% (85% to 100%) of the samples were within 2-fold of our reference laboratory data. Low-titer samples showed the greatest variability in comparisons between assays and between sites. Classification of seroprotection (titer ≥ 40) was accurate in 93.6% or 89.5% of cases in comparison to the consensus or reference laboratory classification, respectively. This study showed that with carefully chosen standardization processes, high reproducibility of HAI results between laboratories is indeed achievable. PMID:26818953

  14. Improving consistency in large laboratory courses: a design for a standardized practical exam.

    PubMed

    Chen, Xinnian; Graesser, Donnasue; Sah, Megha

    2015-06-01

    Laboratory courses serve as important gateways to science, technology, engineering, and mathematics education. One of the challenges in assessing laboratory learning is to conduct meaningful and standardized practical exams, especially for large multisection laboratory courses. Laboratory practical exams in life sciences courses are frequently administered by asking students to move from station to station to answer questions, apply knowledge gained during laboratory experiments, interpret data, and identify various tissues and organs using various microscopic and gross specimens. This approach puts a stringent time limit on all questions regardless of the level of difficulty and also invariably increases the potential risk of cheating. To avoid potential cheating in laboratory courses with multiple sections, the setup for practical exams is often changed in some way between sections. In laboratory courses with multiple instructors or teaching assistants, practical exams may be handled inconsistently among different laboratory sections, due to differences in background knowledge, perceptions of the laboratory goals, or prior teaching experience. In this article, we describe a design for a laboratory practical exam that aims to align the assessment questions with well-defined laboratory learning objectives and improve the consistency among all laboratory sections. PMID:26031726

  15. The evaluation of hospital laboratory information management systems based on the standards of the American National Standard Institute

    PubMed Central

    Isfahani, Sakineh Saghaeiannejad; Khajouei, Reza; Jahanbakhsh, Maryan; Mirmohamadi, Mahboubeh

    2014-01-01

    Introduction: Nowadays, modern laboratories are faced with a huge volume of information. One of the goals of the Laboratory Information Management System (LIMS) is to assist in the management of the information generated in the laboratory. This study intends to evaluate the LIMS based on the standards of the American National Standard Institute (ANSI). Materials and Methods: This research is a descriptive–analytical study, which had been conducted in 2011, on the LIMSs in use, in the teaching and private hospitals in Isfahan. The data collecting instrument was a checklist, which was made by evaluating three groups of information components namely: ‘System capabilities’, ‘work list functions,’ and ‘reporting’ based on LIS8-A. Data were analyzed using the SPSS 20. Data were analyzed using (relative) frequency, percentage. To compare the data the following statistical tests were used: Leven test, t-test, and Analysis of Variance (ANOVA). Results: The results of the study indicated that the LIMS had a low conformity (30%) with LIS8-A (P = 0.001), with no difference between teaching and private hospitals (P = 0.806). The ANOVA revealed that in terms of conformity with the LIS8-A standard, there was a significant difference between the systems produced by different vendors (P = 0.023). According to the results, a Kowsar system with more than %57 conformity in the three groups of information components had a better conformity to the standard, compared to the other systems. Conclusions: This study indicated that none of the LIMSs had a good conformity to the standard. It seems that system providers did not pay sufficient attention to many of the information components required by the standards when designing and developing their systems. It was suggested that standards from certified organizations and institutions be followed in the design and development process of health information systems. PMID:25077154

  16. Implementing an integrated standards-based management system to ensure compliance at Los Alamos National Laboratory

    SciTech Connect

    Hjeresen, D.; Roybal, S.; Bertino, P.; Gherman, C.; Hosteny, B.

    1995-03-01

    Los Alamos National Laboratory (LANL or the Laboratory) is developing and implementing a comprehensive, Integrated Standards-Based Management System (ISBMS) to enhance environmental, safety, and health (ESH) compliance efforts and streamline management of ESH throughout the Laboratory. The Laboratory recognizes that to be competitive in today`s business environment and attractive to potential Partnerships, Laboratory operations must be efficient and cost-effective. The Laboratory also realizes potential growth opportunities for developing ESH as a strength in providing new or improved services to its customers. Overall, the Laboratory desires to establish and build upon an ESH management system which ensures continuous improvement in protecting public health and safety and the environment and which fosters a working relationship with stakeholders. A team of process experts from the LANL Environmental Management (EM) Program Office, worked with management system consultants, and the Department of Energy (DOE) to develop an ESH management systems process to compare current LANL ESH management Systems and programs against leading industry standards. The process enabled the Laboratory to gauge its performance in each of the following areas: Planning and Policy Setting; Systems and Procedures; Implementation and Education; and Monitoring and Reporting. The information gathered on ESH management systems enabled LANL to pinpoint and prioritize opportunities for improvement in the provision of ESH services throughout the Laboratory and ultimately overall ESH compliance.

  17. Teaching a Standard-Based Communicative English Textbook Series to Secondary School Students in Egypt: Investigating Teachers' Practices and Beliefs

    ERIC Educational Resources Information Center

    Abdel Latif, Muhammad M. Mahmoud

    2012-01-01

    Since any standards-based reform is made to bring about an improvement in students' learning, it requires changes in teachers' practices as well. This study examined how a standards-based communicative curricular reform in general secondary school English in Egypt has changed teachers' classroom practices, and the factors influencing such…

  18. 40 CFR 50.13 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... air quality standards for PM2.5. 50.13 Section 50.13 Protection of Environment ENVIRONMENTAL....13 National primary and secondary ambient air quality standards for PM2.5. (a) The national primary... the ambient air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal...

  19. 40 CFR 50.13 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... air quality standards for PM2.5. 50.13 Section 50.13 Protection of Environment ENVIRONMENTAL....13 National primary and secondary ambient air quality standards for PM2.5. (a) The national primary... the ambient air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal...

  20. 40 CFR 50.7 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... air quality standards for PM2.5. 50.7 Section 50.7 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for PM2.5. (a) The national primary and... air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal 2.5...

  1. 40 CFR 50.13 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... air quality standards for PM2.5. 50.13 Section 50.13 Protection of Environment ENVIRONMENTAL....13 National primary and secondary ambient air quality standards for PM2.5. (a) The national primary... the ambient air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal...

  2. 40 CFR 50.7 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... air quality standards for PM2.5. 50.7 Section 50.7 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for PM2.5. (a) The national primary and... air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal 2.5...

  3. 40 CFR 50.13 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... air quality standards for PM2.5. 50.13 Section 50.13 Protection of Environment ENVIRONMENTAL....13 National primary and secondary ambient air quality standards for PM2.5. (a) The national primary... the ambient air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal...

  4. 40 CFR 50.7 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... air quality standards for PM2.5. 50.7 Section 50.7 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for PM2.5. (a) The national primary and... air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal 2.5...

  5. 40 CFR 50.7 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... air quality standards for PM2.5. 50.7 Section 50.7 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for PM2.5. (a) The national primary and... air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal 2.5...

  6. 40 CFR 50.13 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... air quality standards for PM2.5. 50.13 Section 50.13 Protection of Environment ENVIRONMENTAL....13 National primary and secondary ambient air quality standards for PM2.5. (a) The national primary... the ambient air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal...

  7. 40 CFR 50.7 - National primary and secondary ambient air quality standards for PM2.5.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... air quality standards for PM2.5. 50.7 Section 50.7 Protection of Environment ENVIRONMENTAL PROTECTION... National primary and secondary ambient air quality standards for PM2.5. (a) The national primary and... air as PM2.5 (particles with an aerodynamic diameter less than or equal to a nominal 2.5...

  8. The Implementation of Standards-Based Teacher Evaluation in Vietnamese Secondary Schools: A Case Study in Dong Thap

    ERIC Educational Resources Information Center

    Pham, Huy Q.

    2013-01-01

    Teacher quality has become a critical area of concern in Vietnamese education. Recently, new professional standards for teachers in secondary schools have been developed, piloted, and implemented. This study explores the perceptions of teachers, school principals, and other administrators about the new teacher professional standards, the…

  9. A gender analysis of secondary school physics textbooks and laboratory manuals

    NASA Astrophysics Data System (ADS)

    Kostas, Nancy Ann

    Secondary school physics textbooks and laboratory manuals were evaluated for gender balance. The textbooks and manuals evaluated were all current editions available at the time of the study with copyrights of 1988 to 1992. Illustrations, drawings and photographs were judged gender balanced based on the number of men and women, boys and girls shown in both active and passive roles. Illustrations, drawings and photographs were also evaluated by the number of male and female scientists identified by name. The curricular content of the textbooks was analyzed for gender balance by three criteria: the number of named male and female scientists whose accomplishments were described in the text; the number of careers assigned to men and women; and the number of verbal analogies assigned to girls interests, boys interests or neutral interests. The laboratory activities in the manuals were categorized as demonstrations, experiments and observations. Three of each of these types of activities from each manual were analyzed for skills and motivating factors important to girls as identified by Potter and Rosser (1992). Data were analyzed by use of descriptive statistics of frequencies, means and chi-square goodness of fit. The.05 level of significance was applied to all analyses based upon an expected frequency of 50 - 50 percentage of men and women and a 4.5 percent for women scientists to 95.5 percent for men scientists. The findings were as follows. None of the textbooks had a balance of men/women, boys/girls in the illustrations, drawings and photographs. The Hewitt (Scott-Foresman, 1989) textbook was the only textbook with no significant difference. Using the expected frequency for male and female scientists, two textbooks were gender balanced for illustrations, drawings and photographs while all textbooks were gender balanced for described accomplishments of scientists. The Hewitt (Scott Foresman, 1989) textbook had the only gender balanced representation of careers

  10. Standardization in laboratory medicine: Adoption of common reference intervals to the Croatian population

    PubMed Central

    Flegar-Meštrić, Zlata; Perkov, Sonja; Radeljak, Andrea

    2016-01-01

    Considering the fact that the results of laboratory tests provide useful information about the state of health of patients, determination of reference value is considered an intrinsic part in the development of laboratory medicine. There are still huge differences in the analytical methods used as well as in the associated reference intervals which could consequently significantly affect the proper assessment of patient health. In a constant effort to increase the quality of patients’ care, there are numerous international initiatives for standardization and/or harmonization of laboratory diagnostics in order to achieve maximum comparability of laboratory test results and improve patient safety. Through the standardization and harmonization processes of analytical methods the ability to create unique reference intervals is achieved. Such reference intervals could be applied globally in all laboratories using methods traceable to the same reference measuring system and analysing the biological samples from the populations with similar socio-demographic and ethnic characteristics. In this review we outlined the results of the harmonization processes in Croatia in the field of population based reference intervals for clinically relevant blood and serum constituents which are in accordance with ongoing activity for worldwide standardization and harmonization based on traceability in laboratory medicine. PMID:27019800

  11. Standardization in laboratory medicine: Adoption of common reference intervals to the Croatian population.

    PubMed

    Flegar-Meštrić, Zlata; Perkov, Sonja; Radeljak, Andrea

    2016-03-26

    Considering the fact that the results of laboratory tests provide useful information about the state of health of patients, determination of reference value is considered an intrinsic part in the development of laboratory medicine. There are still huge differences in the analytical methods used as well as in the associated reference intervals which could consequently significantly affect the proper assessment of patient health. In a constant effort to increase the quality of patients' care, there are numerous international initiatives for standardization and/or harmonization of laboratory diagnostics in order to achieve maximum comparability of laboratory test results and improve patient safety. Through the standardization and harmonization processes of analytical methods the ability to create unique reference intervals is achieved. Such reference intervals could be applied globally in all laboratories using methods traceable to the same reference measuring system and analysing the biological samples from the populations with similar socio-demographic and ethnic characteristics. In this review we outlined the results of the harmonization processes in Croatia in the field of population based reference intervals for clinically relevant blood and serum constituents which are in accordance with ongoing activity for worldwide standardization and harmonization based on traceability in laboratory medicine. PMID:27019800

  12. Utilization of an automated multimeter calibration system by the Rocky Flats Standards Laboratory

    SciTech Connect

    Wickoff, B.; Stant, R.S.; Brown, G.R. Jr.

    1982-09-10

    The Physical Metrology Laboratory (PML) of the Rocky Flats (RF) Standards Laboratory, like many other standards laboratories, was inundated during the past decade with the vast variety of new digital multimeters. These multimeters were produced by several companies, and required accurate calibrations and certification to support the requirements at the Rocky Flats Plant. The need to automate the calibration and certification process accurately was vividly indicated by a time study of performing the process manually, for both the digital and the analog multimeters, in the PML Reference Standards Laboratory. By using an automated calibration system, approximately 90% of these calibrations could be completed in the Physical Metrology Support Laboratories with a reduction of 50% or more in hours required for the calibrations. With these specific requirements and other specifications deemed necessary, the automated calibration systems for digital and analog multimeters were purchased. Two Fluke 5101B Calibrators with Fluke 5220A Transconductance Amplifiers and two printers were procured for use by the Physical Metrology Support Laboratories. There operation and performance are described.

  13. Assessment and evaluation of science process skills in secondary school biology laboratories

    NASA Astrophysics Data System (ADS)

    Kujawinski, Daniel Bernard

    Awareness of the importance of process skills in science education has increased, but practical methods of assessing student performance of these skills has received minimal attention. The purpose of this dissertation is to examine how student science process skills may be accurately and reliably measured and evaluated. A set of laboratory activities that emphasized process skills was developed by 12 science educators from the western New York area who were participants in a summer institute sponsored by the Howard Hughes Medical Institute. These innovative laboratory activities were designed to be used in existing secondary school biology courses by students of different ages and ability levels. Student performance in the four general process categories of planning, performing, reasoning, and communicating was broken down into twenty specific, individual science process skills deemed important to science education. Nine teacher developers used these twelve activities, entirely and/or partially with their high school biology students during the 1995-1996 school year. Two types of assessment instruments were developed and field-tested for the purpose of evaluating student self evaluation and performance of the twenty individual science process skills. The first was an inventory that asked for the students' self-evaluation of their abilities to perform each of the twenty process skills based on the current year's laboratory experiences. The second was a set of three performance tasks which assessed the twenty skills and were to be completed by the students in a laboratory setting under supervision of their classroom teacher and the researcher. During May and early June, 1996, the student self-evaluation inventory and the three performance tasks were administered to 94 students of teachers in 6 schools who developed and used the activities (HH95, experimental group) and to 126 students of teachers in 9 schools that did not use the activities (HH96, control group). All

  14. 42 CFR 493.1777 - Standard: Inspection of laboratories that have requested or have been issued a certificate of...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 5 2014-10-01 2014-10-01 false Standard: Inspection of laboratories that have requested or have been issued a certificate of compliance. 493.1777 Section 493.1777 Public Health CENTERS... CERTIFICATION LABORATORY REQUIREMENTS Inspection § 493.1777 Standard: Inspection of laboratories that...

  15. 42 CFR 493.1777 - Standard: Inspection of laboratories that have requested or have been issued a certificate of...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 5 2011-10-01 2011-10-01 false Standard: Inspection of laboratories that have requested or have been issued a certificate of compliance. 493.1777 Section 493.1777 Public Health CENTERS... CERTIFICATION LABORATORY REQUIREMENTS Inspection § 493.1777 Standard: Inspection of laboratories that...

  16. 42 CFR 493.1777 - Standard: Inspection of laboratories that have requested or have been issued a certificate of...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 5 2013-10-01 2013-10-01 false Standard: Inspection of laboratories that have requested or have been issued a certificate of compliance. 493.1777 Section 493.1777 Public Health CENTERS... CERTIFICATION LABORATORY REQUIREMENTS Inspection § 493.1777 Standard: Inspection of laboratories that...

  17. 42 CFR 493.1777 - Standard: Inspection of laboratories that have requested or have been issued a certificate of...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Standard: Inspection of laboratories that have requested or have been issued a certificate of compliance. 493.1777 Section 493.1777 Public Health CENTERS... CERTIFICATION LABORATORY REQUIREMENTS Inspection § 493.1777 Standard: Inspection of laboratories that...

  18. 42 CFR 493.1777 - Standard: Inspection of laboratories that have requested or have been issued a certificate of...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 5 2012-10-01 2012-10-01 false Standard: Inspection of laboratories that have requested or have been issued a certificate of compliance. 493.1777 Section 493.1777 Public Health CENTERS... CERTIFICATION LABORATORY REQUIREMENTS Inspection § 493.1777 Standard: Inspection of laboratories that...

  19. DOE standard: The Department of Energy Laboratory Accreditation Program for radiobioassay

    SciTech Connect

    1998-12-01

    This technical standard describes the US Department of Energy Laboratory Accreditation Program (DOELAP) for Radiobioassay, for use by the US Department of Energy (DOE) and DOE Contractor radiobioassay programs. This standard is intended to be used in conjunction with the general administrative technical standard that describes the overall DOELAP accreditation process--DOE-STD-1111-98, Department of Energy Laboratory Accreditation Program Administration. This technical standard pertains to radiobioassay service laboratories that provide either direct or indirect (in vivo or in vitro) radiobioassay measurements in support of internal dosimetry programs at DOE facilities or for DOE and DOE contractors. Similar technical standards have been developed for other DOELAP dosimetry programs. This program consists of providing an accreditation to DOE radiobioassay programs based on successful completion of a performance-testing process and an on-site evaluation by technical experts. This standard describes the technical requirements and processes specific to the DOELAP Radiobioassay Accreditation Program as required by 10 CFR 835 and as specified generically in DOE-STD-1111-98.

  20. Importance of the Primary Radioactivity Standard Laboratory and Implementation of its Quality Management

    SciTech Connect

    Sahagia, Maria; Razdolescu, Anamaria Cristina; Luca, Aurelian; Ivan, Constantin

    2007-04-23

    The paper presents some specific aspects of the implementation of the quality management in the Radionuclide Metrology Laboratory, from IFIN-HH, the owner of the primary Romanian standard in radioactivity. The description of the accreditation, according to the EN ISO/IEC 17025:2005, is presented.

  1. NATIONAL ENVIRONMENTAL LABORATORY ACCREDITATION CONFERENCE: CONSTITUTION, BYLAWS AND STANDARDS; APPROVED JUNE 2000

    EPA Science Inventory

    As Director of the Environmental Protection Agency's National Environmental
    Laboratory Accreditation Program (NELAP), I offer my sincere appreciation to the many individuals who worked on the 2000 revision of the NELAC standards. I would like to give special recognition to th...

  2. Verification and standardization of blood cell counters for routine clinical laboratory tests.

    PubMed

    Verbrugge, Sue Ellen; Huisman, Albert

    2015-03-01

    The use of automated blood cell counters (automated hematology analyzers) for diagnostic purposes is inextricably linked to clinical laboratories. However, the need for uniformity among the various methods and parameters is increasing and standardization of the automated analyzers is therefore crucial. Standardization not only involves procedures based on reference methods but it also involves validation, verification, quality assurance, and quality control, and it includes the involvement of several participants. This article discusses the expert guidelines and provides an overview of issues involved in complete blood count parameter reference methods and standardization of reporting units. PMID:25676379

  3. Coupled Pendulums: A Physical System for Laboratory Investigations at Upper Secondary School

    ERIC Educational Resources Information Center

    Picciarelli, Vittorio; Stella, Rosa

    2010-01-01

    The topic of coupled oscillations is rich in physical content which is both interesting and complex. The study of the time evolution of coupled oscillator systems involves a mathematical formalization beyond the level of the upper secondary school student's competence. Here, we present an original approach, suitable even for secondary students, to…

  4. Laboratory robotics -- An automated tool for preparing ion chromatography calibration standards

    SciTech Connect

    Chadwick, J.L.

    1995-04-01

    This paper describes the use of a laboratory robot as an automated tool for preparing multi-level calibration standards for On-Line Ion Chromatography (IC) Systems. The robot is designed for preparation of up to six levels of standards, with each level containing up to eleven ionic species in aqueous solution. The robot is required to add the standards` constituents as both a liquid and solid additions and to keep a record of exactly what goes into making up every standard. Utilizing a laboratory robot to prepare calibration standards provides significant benefits to the testing environment. These benefits include: accurate and precise calibration standards in individually capped containers with preparation traceability; automated and unattended multi-specie preparation for both anion and cation analytical channels; the ability to free up a test operator from a repetitive routine and re-apply those efforts to test operations; The robot uses a single channel IC to analyze each prepared standard for specie content and concentration. Those results are later used as a measure of quality control. System requirements and configurations, robotic operations, manpower requirements, analytical verification, accuracy and precision of prepared solutions, and robotic downtime are discussed in detail.

  5. 42 CFR 493.1773 - Standard: Basic inspection requirements for all laboratories issued a CLIA certificate and CLIA...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS... laboratory at any time to evaluate the ability of the laboratory to provide accurate and reliable...

  6. 42 CFR 493.1773 - Standard: Basic inspection requirements for all laboratories issued a CLIA certificate and CLIA...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS... laboratory at any time to evaluate the ability of the laboratory to provide accurate and reliable...

  7. 42 CFR 493.1773 - Standard: Basic inspection requirements for all laboratories issued a CLIA certificate and CLIA...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS... laboratory at any time to evaluate the ability of the laboratory to provide accurate and reliable...

  8. 42 CFR 493.1773 - Standard: Basic inspection requirements for all laboratories issued a CLIA certificate and CLIA...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS... laboratory at any time to evaluate the ability of the laboratory to provide accurate and reliable...

  9. Laboratory Studies of the Reactive Chemistry and Changing CCN Properties of Secondary Organic Aerosol, Including Model Development

    SciTech Connect

    Scot Martin

    2013-01-31

    The chemical evolution of secondary-organic-aerosol (SOA) particles and how this evolution alters their cloud-nucleating properties were studied. Simplified forms of full Koehler theory were targeted, specifically forms that contain only those aspects essential to describing the laboratory observations, because of the requirement to minimize computational burden for use in integrated climate and chemistry models. The associated data analysis and interpretation have therefore focused on model development in the framework of modified kappa-Koehler theory. Kappa is a single parameter describing effective hygroscopicity, grouping together several separate physicochemical parameters (e.g., molar volume, surface tension, and van't Hoff factor) that otherwise must be tracked and evaluated in an iterative full-Koehler equation in a large-scale model. A major finding of the project was that secondary organic materials produced by the oxidation of a range of biogenic volatile organic compounds for diverse conditions have kappa values bracketed in the range of 0.10 +/- 0.05. In these same experiments, somewhat incongruently there was significant chemical variation in the secondary organic material, especially oxidation state, as was indicated by changes in the particle mass spectra. Taken together, these findings then support the use of kappa as a simplified yet accurate general parameter to represent the CCN activation of secondary organic material in large-scale atmospheric and climate models, thereby greatly reducing the computational burden while simultaneously including the most recent mechanistic findings of laboratory studies.

  10. An investigation of the use of microcomputer-based laboratory simulations in promoting conceptual understanding in secondary physics instruction

    NASA Astrophysics Data System (ADS)

    Tomshaw, Stephen G.

    Physics education research has shown that students bring alternate conceptions to the classroom which can be quite resistant to traditional instruction methods (Clement, 1982; Halloun & Hestenes, 1985; McDermott, 1991). Microcomputer-based laboratory (MBL) experiments that employ an active-engagement strategy have been shown to improve student conceptual understanding in high school and introductory university physics courses (Thornton & Sokoloff, 1998). These (MBL) experiments require a specialized computer interface, type-specific sensors (e.g. motion detectors, force probes, accelerometers), and specialized software in addition to the standard physics experimental apparatus. Tao and Gunstone (1997) have shown that computer simulations used in an active engagement environment can also lead to conceptual change. This study investigated 69 secondary physics students' use of computer simulations of MBL activities in place of the hands-on MBL laboratory activities. The average normalized gain in students' conceptual understanding was measured using the Force and Motion Conceptual Evaluation (FMCE). Student attitudes towards physics and computers were probed using the Views About Science Survey (VASS) and the Computer Attitude Scale (CAS). While it may be possible to obtain an equivalent level of conceptual understanding using computer simulations in combination with an active-engagement environment, this study found no significant gains in students' conceptual understanding ( = -0.02) after they completed a series of nine simulated experiments from the Tools for Scientific Thinking curriculum (Thornton & Sokoloff, 1990). The absence of gains in conceptual understanding may indicate that either the simulations were ineffective in promoting conceptual change or problems with the implementation of the treatment inhibited its effectiveness. There was a positive shift in students' attitudes towards physics in the VASS dimensions of structure and reflective thinking

  11. Handbook on Tentative Standards and Procedures for the Registration of Secondary Schools. 1979-80 Field Trial Edition.

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany.

    This handbook contains the tentative secondary school registration standards and procedures approved by the New York State Board of Regents for the 1979-80 school year. It explains the program providing for the registration (or accreditation) of New York schools and outlines the steps that will make up the registration procedure. Most of the…

  12. A Comparison of Secondary Principals' Use of Data Systems to Increase Student Achievement in Mathematics as Measured by Standardized Assessments

    ERIC Educational Resources Information Center

    Williams, Joshua

    2011-01-01

    The pressure to meet the demands of "No Child Left Behind" (NCLB) Act coupled with poor results by secondary students on national assessments in mathematics have forced school principals to develop skill sets in the use of data in efforts to increase student performance on standardized assessments. The effective use of data by school principals…

  13. Bypass, Augment, or Integrate: How Secondary Mathematics Teachers Address the Literacy Demands of Standards-Based Curriculum Materials

    ERIC Educational Resources Information Center

    Chandler-Olcott, Kelly; Doerr, Helen M.; Hinchman, Kathleen A.; Masingila, Joanna O.

    2015-01-01

    This 3-year qualitative study examined how 26 teachers in four U.S. secondary schools addressed the literacy demands of curriculum materials based on standards from the National Council of Teachers of Mathematics. It was grounded in sociocultural perspectives that encourage study of language in local contexts, including classrooms, communities,…

  14. Workshop in Support of the Secondary National Ambient Air Quality Standards for Nitrogen (NOx) and Sulfur Oxides (SOx)

    EPA Science Inventory

    EPA is announcing a workshop to discuss policy-relevant science to Inform EPA’s "Review of the Secondary National Ambient Air Quality Standards (NAAQS) for Oxides of Nitrogen and Sulfur" report. The workshop is being organized by EPA’s Office of Research and Development’s, Nation...

  15. Investigation and Development of Competency Standards and Certification Requirements for Secondary-Level Vocational Foodservice Programs. Final Report.

    ERIC Educational Resources Information Center

    Usiewicz, Ronald A.

    An investigation ascertained, analyzed, and documented competency standards and certification requirements for secondary-level vocational food service programs. A literature review produced no instruments used in past studies to measure the attitudes of food service professionals toward task competencies. Six occupations were selected for the…

  16. The Relationship between Computer and Internet Use and Performance on Standardized Tests by Secondary School Students with Visual Impairments

    ERIC Educational Resources Information Center

    Zhou, Li; Griffin-Shirley, Nora; Kelley, Pat; Banda, Devender R.; Lan, William Y.; Parker, Amy T.; Smith, Derrick W.

    2012-01-01

    Introduction: The study presented here explored the relationship between computer and Internet use and the performance on standardized tests by secondary school students with visual impairments. Methods: With data retrieved from the first three waves (2001-05) of the National Longitudinal Transition Study-2, the correlational study focused on…

  17. Current practices and challenges in the standardization and harmonization of clinical laboratory tests.

    PubMed

    Vesper, Hubert W; Myers, Gary L; Miller, W Greg

    2016-09-01

    Effective patient care, clinical research, and public health efforts require comparability of laboratory results independent of time, place, and measurement procedure. Comparability is achieved by establishing metrological traceability, which ensures that measurement procedures measure the same quantity and that the calibration of measurement procedures is traceable to a common reference system consisting of reference methods and materials. Whereas standardization ensures traceability to the International System of Units, harmonization ensures traceability to a reference system agreed on by convention. This article provides an overview of standardization and harmonization with an emphasis on commutability as an important variable that affects testing accuracy. Commutability of reference materials is required to ensure that traceability is established appropriately and that laboratory results are comparable. The use of noncommutable reference materials leads to inaccurate results. Whereas procedures and protocols for standardizing measurements are established and have been successfully applied in efforts such as the Hormones Standardization Program of the CDC, harmonization activities require new, more complex procedures and approaches. The American Association for Clinical Chemistry, together with its domestic and international partners, formed the International Consortium for Harmonization of Clinical Laboratory Results to coordinate harmonization efforts. Reference systems, as well as procedures and protocols to establish traceability of clinical laboratory tests, have been established and continue to be developed by national and international groups and organizations. Serum tests of thyroid function, including those for the thyroid hormones thyroxine and triiodothyronine, are among the clinical procedures for which standardization efforts are well under way. Approaches to the harmonization of measurement procedures for serum concentrations of thyroid

  18. Comparison of Laboratories Directors’ and Assessors’ Opinions on Challenges and Solutions of Standardization in Iran: A Qualitative Study

    PubMed Central

    Ravaghi, Hamid; Abolhassani, Nazanin

    2015-01-01

    Objective: The quality medical laboratory services play a vital role in healthcare systems. Iran has set national standards based on the international standard ISO15189. These standards came into force in September 2007. Given the important role of both laboratories professional and assessors in the standardization, this study aims to compare and analyze medical laboratory directors’ and assessors’ opinions about this process, its challenges and relevant solutions. Methods: This qualitative study was conducted on two populations in 2013. The first survey population consisted of 150 assessors. The second group consisted of directors working in medical laboratory settings. From all universities of medical sciences, 258 medical laboratories were randomly selected. Data were gathered using two open-ended questionnaires and analyzed using the thematic analysis. Results: Challenges and relevant solutions regarding the standardization and standards, the assessment process and assessor, laboratories, external entities and contextual factors across laboratories directors and assessors were derived and compared. Both groups had a positive attitude towards the standardization process. However, they expressed some concerns regarding the process and accordingly proposed solutions to overcome the challenges. Conclusion: This study provides insights into the challenges and solutions of the standardization from two professional groups’ viewpoint. These two factors are closely related and should be considered when implementing standards since a positive perception of them increases the likelihood of successful standardization. Similarities and divergences regarding challenges and solutions of the standardization, in turn, can provide insights into how this process can be improved and deserve policy makers’ attention to continue the progress. PMID:25946940

  19. Termite-Susceptible Species of Wood for Inclusion as a Reference in Indonesian Standardized Laboratory Testing.

    PubMed

    Arinana; Tsunoda, Kunio; Herliyana, Elis N; Hadi, Yusuf S

    2012-01-01

    Standardized laboratory testing of wood and wood-based products against subterranean termites in Indonesia (SNI 01.7207-2006) (SNI) has no requirement for the inclusion of a comparative reference species of wood (reference control). This is considered a weakness of the Indonesian standard. Consequently, a study was undertaken to identify a suitable Indonesian species of community wood that could be used as a reference control. Four candidate species of community woods: Acacia mangium, Hevea brasiliensis, Paraserianthes falcataria and Pinus merkusii were selected for testing their susceptibility to feeding by Coptotermes formosanus. Two testing methods (SNI and the Japanese standard method JIS K 1571-2004) were used to compare the susceptibility of each species of wood. Included in the study was Cryptomeria japonica, the reference control specified in the Japanese standard. The results of the study indicated that P. merkusii is a suitable reference species of wood for inclusion in laboratory tests against subterranean termites, conducted in accordance with the Indonesian standard (SNI 01.7207-2006). PMID:26466532

  20. Termite-Susceptible Species of Wood for Inclusion as a Reference in Indonesian Standardized Laboratory Testing

    PubMed Central

    Arinana; Tsunoda, Kunio; Herliyana, Elis N.; Hadi, Yusuf S.

    2012-01-01

    Standardized laboratory testing of wood and wood-based products against subterranean termites in Indonesia (SNI 01.7207-2006) (SNI) has no requirement for the inclusion of a comparative reference species of wood (reference control). This is considered a weakness of the Indonesian standard. Consequently, a study was undertaken to identify a suitable Indonesian species of community wood that could be used as a reference control. Four candidate species of community woods: Acacia mangium, Hevea brasiliensis, Paraserianthes falcataria and Pinus merkusii were selected for testing their susceptibility to feeding by Coptotermes formosanus. Two testing methods (SNI and the Japanese standard method JIS K 1571-2004) were used to compare the susceptibility of each species of wood. Included in the study was Cryptomeria japonica, the reference control specified in the Japanese standard. The results of the study indicated that P. merkusii is a suitable reference species of wood for inclusion in laboratory tests against subterranean termites, conducted in accordance with the Indonesian standard (SNI 01.7207-2006). PMID:26466532

  1. Services of the CDRH X-ray calibration laboratory and their traceability to National Standards

    SciTech Connect

    Cerra, F.; Heaton, H.T.

    1993-12-31

    The X-ray Calibration Laboratory (XCL) of the Center for Devices and Radiological Health (CDRH) provides calibration services for the Food and Drug Administration (FDA). The instruments calibrated are used by FDA and contract state inspectors to verify compliance with federal x-ray performance standards and for national surveys of x-ray trends. In order to provide traceability of measurements, the CDRH XCL is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) for reference, diagnostic, and x-ray survey instrument calibrations. In addition to these accredited services, the CDRH XCL also calibrates non-invasive kVp meters in single- and three-phase x-ray beams, and thermoluminescent dosimeter (TLD) chips used to measure CT beam profiles. The poster illustrates these services and shows the traceability links back to the National Standards.

  2. Traceability as a unique tool to improve standardization in laboratory medicine.

    PubMed

    Panteghini, Mauro

    2009-03-01

    The standardization of measurements is of high priority in Laboratory Medicine, its purpose being to achieve closer comparability of results obtained using routine analytical systems. In order to achieve standardization, an approach is required that provides reliable transfer of the measurement values from the highest hierarchical level to methods which are routinely used in the clinical laboratories. Such a structure is presented by the reference measurement system (RS), based on the concepts of metrological traceability. Key elements of a comprehensive RS are the reference measurement procedure and reference materials. Other essential elements include the definition of the measurand in regards to the intended clinical use and the reference laboratories that may collaborate in a network. At present, there is international cooperation in developing RS for analytes of clinical significance. Thanks to the work of the Joint Committee on Traceability in Laboratory Medicine (JCTLM), a list of higher order reference materials and reference methods is now publicly available. JCTLM has also published the list of reference laboratories that are able to deliver a reference measurement service. As soon as a new RS is implemented, clinical validation of the correctly calibrated routine methods (the IVD products sold onto the market) should take place. Other important issues concerning the implementation of a metrologically-correct approach for result standardization are: 1) the clear definition of the clinically allowable error of measurements and 2) the post-market surveillance of the performance of IVD products. These are tasks of our profession through the organization of appropriate External Quality Assessment programs. PMID:19863912

  3. Laboratory Experiences in Marine Biology for Upper Elementary and Secondary School Grades, Teachers Edition.

    ERIC Educational Resources Information Center

    Raimist, Roger J.

    Designed to assist the teacher who wishes to use marine organisms for biological laboratory investigations, this manual includes general information on maintaining marine aquaria and collecting marine organisms as well as five tested laboratory exercises. The exercises deal with the measurement of oxygen consumption (giving techniques for…

  4. Full-system laboratory testing of the F/15 deformable secondary mirror for the new MMT adaptive optics system

    NASA Astrophysics Data System (ADS)

    Mcguire, Patrick C.; Lloyd-Hart, Michael; Angel, J. Roger P.; Angeli, George Z.; Johnson, Robert L.; Fitz-Patrick, Bruce C.; Davison, Warren B.; Sarlot, Roland J.; Bresloff, Cynthia J.; Hughes, John M.; Miller, Stephen M.; Schaller, Skip; Wildi, Francois P.; Kenworthy, Matthew A.; Cordova, Richard M.; Rademacher, Matthew J.; Rascon, Mario H.; Burge, James H.; Stamper, Brian L.; Zhao, Chunyu; Salinari, Piero; del Vecchio, Ciro; Riccardi, Armando; Brusa, Guido; Biasi, Roberto; Andrighettoni, Mario; Gallieni, Daniele; Franchini, Claudio; Sandler, David G.; Barrett, Todd K.

    1999-09-01

    We will present a system to perform closed-loop optical tests of the 64 cm diameter, 336 actuator adaptive secondary made at the Steward Observatory Mirror Laboratory. Testing will include Shack-Hartmann wavefront sensing and modal correction of static and dynamic aberrated wavefronts. The test optical system is designed so that experiments can be made with both the focal plane instrument and secondary installed in their normal configuration at the MMT, or with the same 9 m spacing in a laboratory test tower. The convex secondary will be illuminated at normal incidence through two 70 cm diameter lenses mounted just below. The artificial, aberrated star is projected from near the wavefront sensor in the Cassegrain focus assembly. Computer generated holograms correct for spherical aberration in the really optics at the test wavelengths of 0.594 and 1.5 micrometers . Atmospheric turbulence is reproduced by two spinning transmission plates imprinted with Kolmogorov turbulence. The Shimmulator will give us the opportunity to test fully the adaptive optics system before installation at the new MMT, hence saving much precious telescope time.

  5. Microfluidic cartridges for DNA purification and genotyping processed in standard laboratory instruments

    NASA Astrophysics Data System (ADS)

    Focke, Maximilian; Mark, Daniel; Stumpf, Fabian; Müller, Martina; Roth, Günter; Zengerle, Roland; von Stetten, Felix

    2011-06-01

    Two microfluidic cartridges intended for upgrading standard laboratory instruments with automated liquid handling capability by use of centrifugal forces are presented. The first microfluidic cartridge enables purification of DNA from human whole blood and is operated in a standard laboratory centrifuge. The second microfluidic catridge enables genotyping of pathogens by geometrically multiplexed real-time PCR. It is operated in a slightly modified off-the-shelf thermal cycler. Both solutions aim at smart and cost-efficient ways to automate work flows in laboratories. The DNA purification cartridge automates all liquid handling steps starting from a lysed blood sample to PCR ready DNA. The cartridge contains two manually crushable glass ampoules with liquid reagents. The DNA yield extracted from a 32 μl blood sample is 192 +/- 30 ng which corresponds to 53 +/- 8% of a reference extraction. The genotyping cartridge is applied to analyse isolates of the multi-resistant Staphyloccus aureus (MRSA) by real-time PCR. The wells contain pre-stored dry reagents such as primers and probes. Evaluation of the system with 44 genotyping assays showed a 100% specificity and agreement with the reference assays in standard tubes. The lower limit of detection was well below 10 copies of DNA per reaction.

  6. Accuracy of the Clinical Diagnosis of Vaginitis Compared to a DNA Probe Laboratory Standard

    PubMed Central

    Lowe, Nancy K.; Neal, Jeremy L.; Ryan-Wenger, Nancy A.

    2009-01-01

    Objective To estimate the accuracy of the clinical diagnosis of the three most common causes of acute vulvovaginal symptoms (bacterial vaginosis, candidiasis vaginitis, and trichomoniasis vaginalis) using a traditional, standardized clinical diagnostic protocol compared to a DNA probe laboratory standard. Methods This prospective clinical comparative study had a sample of 535 active duty United States military women presenting with vulovaginal symptoms. Clinical diagnoses were made by research staff using a standardized protocol of history, physical examination including pelvic examination, determination of vaginal pH, vaginal fluid amines test, and wet-prep microscopy. Vaginal fluid samples were obtained for DNA analysis. The research clinicians were blinded to the DNA results. Results The participants described a presenting symptom of abnormal discharge (50%), itching/irritation (33%), malodor (10%), burning (4%), or others such as vulvar pain and vaginal discomfort. According to laboratory standard, there were 225 cases (42%) of bacterial vaginosis 76 cases (14%) of candidiasis vaginitis, 8 cases (1.5%) of trichomoniasis vaginalis, 87 cases of mixed infections (16%), and 139 negative cases (26%). For each single infection, the clinical diagnosis had a sensitivity and specificity of 80.8% and 70.0% for bacterial vaginosis; 83.8% and 84.8% for candidiasis vaginitis; and 84.6% and 99.6% for trichomoniasis vaginalis when compared to the DNA probe standard. Conclusion Compared to a DNA probe standard, clinical diagnosis is 81-85% sensitive and 70- 99% specific for bacterial vaginosis, candida vaginitis, and trichomoniasis. Even under research conditions that provided clinicians with sufficient time and materials to conduct a thorough and standardized clinical evaluation, the diagnosis and therefore, subsequent treatment of these common vaginal problems remains difficult. PMID:19104364

  7. 42 CFR 493.1773 - Standard: Basic inspection requirements for all laboratories issued a CLIA certificate and CLIA...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 5 2011-10-01 2011-10-01 false Standard: Basic inspection requirements for all laboratories issued a CLIA certificate and CLIA-exempt laboratories. 493.1773 Section 493.1773 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS AND CERTIFICATION...

  8. A fish-feeding laboratory bioassay to assess the antipredatory activity of secondary metabolites from the tissues of marine organisms.

    PubMed

    Marty, Micah J; Pawlik, Joseph R

    2015-01-01

    Marine chemical ecology is a young discipline, having emerged from the collaboration of natural products chemists and marine ecologists in the 1980s with the goal of examining the ecological functions of secondary metabolites from the tissues of marine organisms. The result has been a progression of protocols that have increasingly refined the ecological relevance of the experimental approach. Here we present the most up-to-date version of a fish-feeding laboratory bioassay that enables investigators to assess the antipredatory activity of secondary metabolites from the tissues of marine organisms. Organic metabolites of all polarities are exhaustively extracted from the tissue of the target organism and reconstituted at natural concentrations in a nutritionally appropriate food matrix. Experimental food pellets are presented to a generalist predator in laboratory feeding assays to assess the antipredatory activity of the extract. The procedure described herein uses the bluehead, Thalassoma bifasciatum, to test the palatability of Caribbean marine invertebrates; however, the design may be readily adapted to other systems. Results obtained using this laboratory assay are an important prelude to field experiments that rely on the feeding responses of a full complement of potential predators. Additionally, this bioassay can be used to direct the isolation of feeding-deterrent metabolites through bioassay-guided fractionation. This feeding bioassay has advanced our understanding of the factors that control the distribution and abundance of marine invertebrates on Caribbean coral reefs and may inform investigations in diverse fields of inquiry, including pharmacology, biotechnology, and evolutionary ecology. PMID:25650625

  9. 40 CFR 52.1875 - Attainment dates for achieving the sulfur dioxide secondary standard.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ....; Interlake, Inc.; Austin Power Co.; Diamond Crystal Salt Co.; The Goodyear Tire & Rubber Co.; The Gulf Oil Co... to achieve the secondary SO2 NAAQS by January 4, 1983: Diamond Crystal Salt; Firestone Tire &...

  10. 40 CFR 52.1875 - Attainment dates for achieving the sulfur dioxide secondary standard.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ....; Interlake, Inc.; Austin Power Co.; Diamond Crystal Salt Co.; The Goodyear Tire & Rubber Co.; The Gulf Oil Co... to achieve the secondary SO2 NAAQS by January 4, 1983: Diamond Crystal Salt; Firestone Tire &...