Relevant bibliographies by topics / Laboratory role

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Laboratory role'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Laboratory role.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Laboratory role"

1

Anvarovich, Atakhanov Sanjarbek, and Asalkhon Alijonova daughter of Sokhibjon. "Modern Computer Laboratory Technologies and Their Role in Medicine." International Journal Of Management And Economics Fundamental 5, no. 4 (2025): 59–63. https://doi.org/10.37547/ijmef/volume05issue04-09.

Full text
Abstract:
Modern computer laboratory technologies are increasingly becoming an integral part of the medical field. With the rapid development of information technologies, many stages of laboratory processes are being automated, which significantly contributes to the efficiency of diagnostics and treatment. This topic highlights the role of modern computerized laboratory equipment, automated analyzers, artificial intelligence, and data processing systems in medical research and laboratory work. Moreover, it discusses the computer software used in laboratories, databases, real-time access to analysis results, their storage, processing, and decision-making technologies that assist medical professionals. These technologies not only ensure accuracy and speed but also reduce human- related errors. Through this analysis, the practical significance of laboratory technologies in diagnostics, epidemiology, pharmacology, and other medical areas is revealed. The aim is to provide a broad understanding of the theoretical and practical foundations of modern laboratory technologies, their advantages, fields of application, and future development directions.
APA, Harvard, Vancouver, ISO, and other styles
2

Chhajed, Prashant N., and Michael Tamm. "Will There Be a Role for Bronchoscopic Radiofrequency Ablation?" Journal of Bronchology 12, no. 3 (2005): 184. http://dx.doi.org/10.1097/01.laboratory.0000163024.10160.9a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Banks, L. "Laboratory support to Role 2 Afloat." Journal of The Royal Naval Medical Service 99, no. 3 (2013): 149. http://dx.doi.org/10.1136/jrnms-99-149.

Full text
Abstract:
AbstractThis article outlines the personal experiences of a biomedical scientist who recently deployed as a member of the Role 2 Afloat team on Exercise INTREPID DEFENDER. The laboratory support for the different departments is described and the provision of blood products available to Role 2 Afloat is outlined.
APA, Harvard, Vancouver, ISO, and other styles
4

Singh, Kanchan, and Abhas Kumar Singh. "Preanalytical Variables: Role in laboratory testing." Journal of Medical Research 5, no. 6 (2019): 236–38. http://dx.doi.org/10.31254/jmr.2019.5609.

Full text
Abstract:
Introduction: In present medical scenario diagnosis of various diseases largely depends on investigations performed at hospital laboratory and with the advancement of technology error rates in analytical phase reduced drastically but still preanalytical errors in laboratories are very common and play a very important role in patient care and treatment. Objectives: To identify the nature and frequency of pre-analytical factors responsible for sample rejection. Methodology: The study was conducted in Clinical Biochemistry laboratory of Department of Biochemistry, over a period of 6 months from October 2018- March 2019 on total 33,303 samples which include OPD samples (n=20040 ), IPD samples (n= 11488) and Emergency samples (n=1775) and in these samples different preanalytical variables were categorized separately. Results and Conclusion: Out of 33303 samples analysed over a period of 6 months preanalytical errors were seen in 1.38% (n=461) samples, with the commonest error was incomplete requisition forms followed by hemolysis of sample.
APA, Harvard, Vancouver, ISO, and other styles
5

Bergquist, Wilbur. "Role reversal: Laboratory before the lecture." Physics Teacher 29, no. 2 (1991): 75–76. http://dx.doi.org/10.1119/1.2343222.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Voress, Louise. "ROLE-PLAYING IN THE UNDERGRADUATE LABORATORY." Analytical Chemistry 63, no. 6 (1991): 347A—353A. http://dx.doi.org/10.1021/ac00006a729.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Lee, Francesca. "Diagnostics and laboratory role in outbreaks." Current Opinion in Infectious Diseases 30, no. 4 (2017): 419–24. http://dx.doi.org/10.1097/qco.0000000000000388.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Smith, William H. "The Role of the Changing Laboratory." SMPTE Journal 94, no. 9 (1985): 940–42. http://dx.doi.org/10.5594/j03377.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Seaberg, Richard S., Robert O. Stallone, and Bernard E. Statland. "The Role of Total Laboratory Automation in a Consolidated Laboratory Network." Clinical Chemistry 46, no. 5 (2000): 751–56. http://dx.doi.org/10.1093/clinchem/46.5.751.

Full text
Abstract:
Abstract Background: In an effort to reduce overall laboratory costs and improve overall laboratory efficiencies at all of its network hospitals, the North Shore–Long Island Health System recently established a Consolidated Laboratory Network with a Core Laboratory at its center. Methods: We established and implemented a centralized Core Laboratory designed around the Roche/Hitachi CLAS Total Laboratory Automation system to perform the general and esoteric laboratory testing throughout the system in a timely and cost-effective fashion. All remaining STAT testing will be performed within the Rapid Response Laboratories (RRLs) at each of the system’s hospitals. Results: Results for this laboratory consolidation and implementation effort demonstrated a decrease in labor costs and improved turnaround time (TAT) at the core laboratory. Anticipated system savings are ∼$2.7 million. TATs averaged 1.3 h within the Core Laboratory and less than 30 min in the RRLs. Conclusions: When properly implemented, automation systems can reduce overall laboratory expenses, enhance patient services, and address the overall concerns facing the laboratory today: job satisfaction, decreased length of stay, and safety. The financial savings realized are primarily a result of labor reductions.
APA, Harvard, Vancouver, ISO, and other styles
10

Abdullah, Sethar D.V.M. M. Sc, Benjamin W. Neuman Dr., Bhatti M.Ali, Gul Hassan Sethar Dr., and Nargis Khan Dr. "Role of Epidemiology of Arena Viruses." International Journal of Case Studies 5, no. 7 (2016): 103–13. https://doi.org/10.5281/zenodo.3531388.

Full text
Abstract:
The current research investigates the Epidemiology of Arenavirus .The results shows that infections follow a typical epidemic curve with a 1-2 week latent period, as shown for the case of Lujo virus which was identified in South Africa, September – October 2008 (see Fig 12). Source: Special Pathogens Unit and Epidemiology Division, NICD; Gauteng Provincial Outbreak Response Team and partners; SA-FELTP residents; Department of Anatomical Pathology, University of the Witwatersrand and the National Health Laboratory Service
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Laboratory role"

1

Pritchett, Duncan N. P. "Planning procedures and leadership role of the principal in professional development schools." Virtual Press, 1999. http://liblink.bsu.edu/uhtbin/catkey/1159151.

Full text
Abstract:
This study was designed to determine (a) the nature and extent of planning and programmatic changes that occurred in Indiana schools that have incorporated the Ball State University (BSU) Professional Development School (PDS) model; (b) how the implementation of these changes had impacted the school principal's roles and responsibilities; (c) whether the principal serving as site coordinator effected the school or principal's work; and (d) whether geographic classification effected process or outcomes. Interviews were conducted with the principal, site coordinators and teachers during March 1999. Findings:1.The principals, teachers, and university faculty were continuously involved in planning.2.Although the duration of planning varied, all schools used planning committees, research and multiple planning processes.3.The most notable changes were instructional modifications and collaborative teaching.4.Half of the principals (two urban and one suburban) became more facilitative and more inclined to use shared decision making.5.Half of the schools had a change in the principalship during planning; one school had four different principals during this period.6.Site coordinators had a positive influence on shared decision making.7.More change occurred in the urban schools. Conclusions:1. Ongoing communication and shared decision making helped diminish possible negative consequences of principal turnover during planning.2.Differences in planning duration and frequency did not appear to affect outcomes.3.Transition to a PDS had more effects on the urban schools, suggesting that climates and cultures in suburban schools were initially more congruous with the PDS philosophy.4.The philosophy of the PDS requires a collaborative leadership style on the part of the principal. Those unwilling to assume this role are likely to withdraw from the principalship. Having the principal not serve as the site coordinator promotes collaboration and shared authority.5.Suburban educators were inclined to view PDS issues politically, while the urban educators were inclined to view them economically.Recommendations:1. The leadership style of a principal should be a primary consideration in selecting possible PDS sites.2.Longitudinal studies of PDSs should be conducted in the areas of student academic growth, curriculum, and faculty satisfaction.<br>Department of Educational Leadership
APA, Harvard, Vancouver, ISO, and other styles
2

Jones, Shelby-Sara Ann. "The role of Lymphoblastic leukemia 1 (Lyl1) in Mycobacterium tuberculosis (Mtb) infection." Doctoral thesis, Faculty of Health Sciences, 2021. http://hdl.handle.net/11427/33727.

Full text
Abstract:
Lymphoblastic leukemia 1 (Lyl1) is a well-studied transcription factor known to exhibit oncogenic potential during various forms of leukemia. Since its discovery in 1989, many reports have been published describing its relationship with cancer as well as demonstrating its function during hematopoiesis. Lyl1 has been shown to serve a significant role during thymopoiesis by contributing to T-cell development. However, it has been recently reported that irrespective of its significance during T-cell development, mature comparable single positive T-cells are observed in mouse models. The use of murine models has been crucial in identifying potential targets for host-directed therapies (HDT) which has been shown to provide great potential in treating tuberculosis (TB). It is evident that Mycobacterium tuberculosis (Mtb), the causative agent for TB, is capable of developing resistance to various treatments that target the bacterium itself. Therefore, by designing therapies that directly target host factors could assist in circumventing Mtb resistance. By analyzing Mtb-infected bone marrow-derived macrophages (BMDM) that have been subjected to genome-wide transcriptional deep sequencing of total RNA using a single molecule sequencer in conjunction with the cap analysis gene expression (CAGE) technique, various differentially expressed genes were identified, including the oncogenic transcription factor, Lyl1. With the use of murine models, we investigated whether Lyl1 is important for various immunological responses at steady state, the regulation of Lyl1 in response to various immune stimulants including LPS and whether this transcription factor is relevant in bacterial infections including Listeria monocytogenes (Lm) and Mtb. The data in this thesis demonstrate comparable immunological responses, including cellular recruitment by means of flow cytometry and cytokine responses by means of ELISA, between naïve littermate control and Lyl1-deficient mice. Further evaluation of Lyl1 regulation revealed the influence of MAPk and NFκB signaling on Lyl1 expression upon LPS stimulation by significantly downregulating this transcription factor in immune stimulated macrophages. A role for Lyl1 during bacterial infections was observed in Lm-infected mice whereby Lyl1-/- mice succumbed earlier to listeriosis compared to the littermate controls. We further established a functional role for this transcription factor during Mtb infection in vitro and in vivo. The early surrender of Lyl1-deficient mice to Mtb HN878 infection, accompanied by increased bacterial burden during chronic Mtb infection, demonstrated enhanced susceptibility in the absence of Lyl1. We show that Lyl1-deficient host susceptibility is a consequence of enhanced inflammatory responses and increased bacterial growth. This is demonstrated by increased neutrophilic inflammation, pro-inflammatory cytokine and chemokine secretion along with a reduction in anti-inflammatory cytokine release during chronic Mtb infection. Here, we demonstrate the first non-leukemia role for Lyl1 by suggesting a role and requirement for this transcription factor during bacterial infections. Given the significant role during Mtb infection, our studies suggest the use of Lyl1 associated pathways as a potential HDT target for TB.
APA, Harvard, Vancouver, ISO, and other styles
3

Valli, Alice <1991&gt. "Daily torpor in laboratory mice: physiological phenotyping and role of orexins." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/8806/1/TESI%20VALLI-ALICE.pdf.

Full text
Abstract:
Spontaneous torpor is a physiological phenomenon used in extreme circumstances to save energy. The physiological mechanisms ruling the torpor bouts are still unknown. Orexins (ORXs) are neuropeptides involved in the control of food behavior, in thermoregulation and sleep-wake cycle regulation this suggests that ORXs could have a role in torpor regulation. The aims of this study were to elucidate: 1) the role of ORXs in the entrance and/or exiting from torpor; 2) the level of glycemia at the onset of torpor differs from both glucose during arousal from torpor and from baseline conditions. In order to evaluate the role of orexins, 8 KO-ORX and 8 WT mice, were implanted with a telemetric blood pressure transducer (Data Sciences International, DSI), two cranial electrodes for the discrimination of the wake-sleep state and a thermistor in the brain cortex. For the study of changes in glycemia related to torpor, 6 WT mice were implanted intraperitoneally with glucose telemeter (DSI). To induce torpor, mice were calorically restricted and exposed to an ambient temperature of 20°C. The lack of ORXs does not cause significative differences in the physiological parameters during the different torpor phases. During deep torpor, in both the experimental groups, electroencephalogram (EEG) trace is similar to that described during active wakefulness while electromyogram (EMG) is almost flat, similarly to NREM sleep. This unusual sleep tracings can be observed when the minimum Tb is recorded. We found a strong positive and linear correlation between circulating glucose and Tb during ad libitum feeding at thermoneutrality. Low blood glucose itself was not predictive of a bout of torpor, the onset of torpor was associated with the combination of low blood glucose and hyperactivity Torpor can be considered a multifactorial and complex mechanism involving both metabolism and central nervous system control.
APA, Harvard, Vancouver, ISO, and other styles
4

Basich, Dinko. "The role of IL-4Rá in Nippostrongylus brasiliensis-induced chronic lung pathology." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/13437.

Full text
Abstract:
Includes bibliographical references (leaves 108-126).<br>Infection by the parasitic nematode Nippostrongylus brasiliensis involves migration through the lungs, causing significant damage and generating chronic lung pathology. The resolution of N. brasiliensis infection and also the induction of pulmonary pathology, including goblet cell hyperplasia and acute airway inflammation, depend on IL-4Rá signalling. A key feature of IL-4Rá signalling is the induction of a strong TH2 response which induces the development of alternatively activated macrophages (AAMs). AAMs are associated with tissue remodelling and the control of exacerbated inflammation. In order to investigate potential roles for IL-4Rá in N. brasiliensis' induced lung pathology, we infected mice deficient for IL-4Rá on macrophages and neutrophils (LysMCreIL-4Rá-/lox), IL-4Rá -/- and control mice (IL-4Rá-/lox) with N. brasiliensis and examined lung pathology at days 5, 42 and 180 post infection (p.i.).All three mice strains showed similar emphysemic-like pathology (alveolar dilatation) and airway hyperresponsiveness (AHR) which was well developed by day 42 p.i. and remained chronic. However, LysMCreIL-4Rá-/lox mice consistently demonstrated earlier and increased pulmonary inflammation when compared to IL-4Rá-/lox control mice and IL-4Rá-/- mice. Immunological studies at day 5 p.i. revealed that there were increased CD4+ and CD8+ T-cell numbers and increased CD4+ IL-4 and IL-13 production in the lungs of LysMCreIL-4Rá-/lox mice when compared to control and IL- 4Rá-/- mice. LysMCreIL-4Rá-/lox mice also showed decreased pulmonary arginase activity, indicative of a reduction of AAMs. RNA transcript analysis of isolated alveolar macrophages showed a strong association with promoting inflammation in LysMCreIL-4Rá-/lox mice. Together these data demonstrate that IL-4Rá-responsive macrophages control pulmonary inflammation and play an important protective role in the lung following N. brasiliensis infection.
APA, Harvard, Vancouver, ISO, and other styles
5

Thuecks, Derek Jon. "Laboratory investigations of dispersive Alfvén waves and their role in electron acceleration." Diss., University of Iowa, 2009. https://ir.uiowa.edu/etd/268.

Full text
Abstract:
Two sets of related experiments are presented here. In the first, measurements of shear Alfvén waves are used to test the predictions of a variety of different electron collision operators, including several Krook collision operators as well as a Lorentz collision operator. New expressions for the collisional warm-plasma dielectric tensor resulting from the use of the fully-magnetized collisional Boltzmann equation are presented here. Theoretical predictions for the parallel phase velocity and damping as a function of perpendicular wave number k⊥ are derived from the dielectric tensor. Laboratory measurements of the parallel phase velocity and damping of shear Alfvén waves were made to test these theoretical predictions in both the kinetic (vte ≫ vA) and inertial (vte ≪ vA) parameter regimes and at several wave frequencies (ω < ωci). Results show that in the inertial regime, the best match between measurements and theory occur when any of the Krook operators are used to describe electron collisions. In contrast, the best agreement in the kinetic regime is found when collisions are completely ignored. In the second set of experiments, whistler waves were launched and received by a pair of dipole antennas immersed in the plasma at two positions along the background magnetic field. According to cold-plasma theory, there is absorbtion of the whistler wave when ω = |ωce| = eB/me due to resonance with the electrons. The whistler frequency was swept from somewhat below up to the electron cyclotron frequency |ωce|. As the frequency was swept, the wave was resonantly absorbed by those parts of electron phase space density which were Doppler shifted into resonance. The transmission of the wave through the plasma was measured. This measurement of transmission can be converted into a measure of the parallel electron distribution function. This diagnostic is designed to attempt to measure modifications to the parallel electron distribution function due to interactions with inertial Alfvén waves.
APA, Harvard, Vancouver, ISO, and other styles
6

Kampira, Elizabeth. "Pharmacogenetics of stavundine : role of genetic variation in mitochondrial DNA and polymerase gamma among adult Malawian HIV/AIDS patients." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/3168.

Full text
Abstract:
Includes abstract.<br>Includes bibliographical references.<br>Infectious diseases are endemic in Africa, especially tuberculosis (TB), malaria and human immunodefiency virus (HIV)/acquired immunodeficiency syndrome (AIDS). Genomics research has the potential to improve the health of Africans through identification of genetic markers associated with either disease susceptibility or therapeutic drug response. This project was set to investigate the genetic correlates for drugs associated with mitochondrial toxicity that are used as part of HIV therapy, especially nucleoside reverse transcriptase inhibitors (NRTIs). Toxicity from NRTIs manifests through metabolic diseases such as peripheral neuropathy, lipodystrophy, lactic acidosis and hyperlactatemia but show interpatient variability. Studying African populations is likely to open the door for the population to benefit from novel diagnostic tools and drugs developed on the basis of pharmacogenomics knowledge. In an effort to contribute to this knowledge, the role of variation in mitochondrial DNA (mtDNA) and polymerase gamma (POL-γ) on how patients respond to stavudine-containing antiretroviral therapy (ART) among adult Malawian HIV/AIDS patients was investigated.
APA, Harvard, Vancouver, ISO, and other styles
7

Brombacher, Tiroyaone M. H. "The role of interleukin-4 receptor alpha on smooth muscle cells during helminth infection." Doctoral thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/12245.

Full text
Abstract:
Includes abstract.<br>Includes bibliographical references (leaves 101-111).<br>Interleukin-4 receptor alpha (IL-4Ra) signaling, mediated by the ligands IL-4 and IL- 13, is important for effective host protection during murine Nippostrongylus brasiliensis (N. brasiliensis) and Schistosoma mansoni (S. manson!) infection. Among other cell types, IL-4Ra responsive smooth muscle cells influence immunological responses and are needed for host protection during N. brasiliensis and S. mansoni infection.
APA, Harvard, Vancouver, ISO, and other styles
8

Ndlovu, H. Hlumani. "Investigating the role of CD28 costimulation and IL-4/IL-13 responsive myeloid and lymphoid cells during helminth infections in mice." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/3176.

Full text
Abstract:
Includes abstract.<br>Includes bibliographical references.<br>The aim of this study was to evaluate the importance of CD28 in initiating protective Th2 immunity against both primary and secondary infections with N. brasiliensis. Our findings demonstrate that CD28 is required for initiation of protective Th2 immunity against primary infection with N. brasiliensis. Furthermore, the absence of CD28 impairs development of memory CD4⁺ T cell responses resulting in failure to clear adult N. brasiliensis worms during secondary infection. Failure to resolve infection was associated with reduced production of Th2 cytokines particularly IL-13 and IL-4, abrogated humoral immunity and failure to expand CXCR5⁺ TFH cells.
APA, Harvard, Vancouver, ISO, and other styles
9

Zimmer, Matthew R. "The Role of Laboratory Services in Schizophrenic Primary Care Delivery| A Qualitative Study." Thesis, Capella University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10684889.

Full text
Abstract:
<p> The lack of primary care coordination for people with schizophrenia across the continuum of care in a rural Midwest state compromises long-term treatment success. For the purpose of primary care coordination this qualitative study explored perceptions of health care professionals that care for people with schizophrenia regarding expansion of laboratory and/or pharmacy services in the home health care setting. Mental health providers, home health care nurses, pharmacy and laboratory personnel participated in a focus group to identify common themes regarding access to care, care coordination and the utilization of laboratory and/or pharmacy services. A semistructured, open-ended focus group was used to examine the actual experiences of health care practitioners and professionals working with people with schizophrenia in the rural home health care setting. The findings of the focus group demonstrated several common themes. The first theme identified was people with schizophrenia have stigmas about their illness leading to non-compliance and reduced access to care. A second theme identified was the lack of community resources to care for people with schizophrenia. A third theme was the limited knowledge of health care providers to the utilization of home health care in the treatment of people with schizophrenia. The fourth theme was the lack of care coordination, social work and knowledge of the local issues faced by people with schizophrenia. The fifth and final theme was the lack of coordination with laboratory and pharmacy health care specialties. The results of the study may lend interest to more research regarding the utility of expanded home health care services in the care of people with schizophrenia.</p><p>
APA, Harvard, Vancouver, ISO, and other styles
10

Jamieson, Elizabeth Clare. "The Role of Vorticity, Turbulence and Three-dimensional Flow Structure on the Development of Scour." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20208.

Full text
Abstract:
Fundamental to the understanding of how rivers transform and shape our environment is the role of turbulence and complex, three-dimensional flow, such as vorticity, in sediment transport and erosion. However, classical sediment transport models (or formulae) are based, for the most part, on boundary shear stress and do not incorporate these natural phenomena. This is understandable given that the relationship between turbulence generation, intensity and form; the influence of turbulence on mobile sediment; and the magnitude and patterns of deposition and erosion are complex and difficult to quantify. Nevertheless, the failure to incorporate turbulence and complex, three-dimensional flow into existing models means that our understanding of sediment transport remains incomplete. The central hypothesis of this thesis is that vortical motion is the main factor in the development of local scour. To examine this, a comprehensive experimental approach was taken. This approach involved detailed measurements of the unique three-dimensional patterns of velocity, turbulence and bed morphology associated with flow in an open channel with and without the presence of submerged groyne-like structures (stream barbs and wing dikes) at both the laboratory and field scales. Using densely spaced velocity data and new techniques for processing and analyzing these data, it was possible to identify complex features of the flow field at both scales, such as the presence of vortex cores, and correlate these with changes in bed levels. These data provide a unique perspective of the spatial variability of velocity, turbulence and bed morphology in open channels (and in particular in channel bends, where flow is highly three-dimensional). In particular, it was found that, of the flow parameters analyzed, turbulent stresses were most correlated to scour in channel bends without the presence of structures. In contrast, vorticity was found to be the dominant factor in local scour hole development in the vicinity of submerged structures at both the laboratory and field scale. Such data are rare (if non-existent) in existing experimental research, particularly at the scale of a large natural river. This research also examines stream barb design and performance. Stream barbs (also known as submerged groynes or spur dikes) are a relatively novel approach to stream bank protection and are not common in Canada. The design and installation of stream barbs in a creek in Ottawa (Sawmill Creek) was undertaken to serve as a demonstration project for the use of these structures in a semi-alluvial channel, for which no such case studies exist. Three years of monitoring the site and the performance of these structures to reduce bank erosion and improve aquatic habitat have been carried out. Laboratory testing of stream barb performance was also undertaken and showed that with improper design, the outer bank in a channel bend may be more susceptible to erosion due to excessive local scour downstream of the barb. In particular, to avoid bank erosion downstream of the barb, barbs should be small, such that they create minimum flow obstruction, and include a bank key that is wider than the barb itself and extends in the downstream direction.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Laboratory role"

1

Walsh, Garry M. Eosinophils: Structure, biological properties, and role in disease. Nova Science Publisher's, Inc., 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

V, Roloff M., and Wilson A. G. E, eds. Human risk assessment: The role of animal selection and extrapolation. Taylor & Francis, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sokołowska, Dagmara, and Marisa Michelini, eds. The Role of Laboratory Work in Improving Physics Teaching and Learning. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96184-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Christopher, Johnston J., and United States. National Aeronautics and Space Administration., eds. Preparation for microgravity: The role of the Microgravity Materials Science Laboratory. National Aeronautics and Space Administration, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

H, Le Jeanette, and Dryden Flight Research Facility, eds. The role of the Remotely Augmented Vehicle (RAV) laboratory in flight research. National Aeronautics and Space Administration, Dryden Flight Research Facility, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Jeff, Bingaman, ed. LANL 2000, the role of the National Laboratory in the 21st century. LANL 2000, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

National Physical Laboratory (Great Britain). NPL points of contact: An outline of the role and organisational structure of the National Physical Laboratory.... National Physical Laboratory, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

L, Rieder Hans, and International Union against Tuberculosis and Lung Disease., eds. The public health service national tuberculosis reference laboratory and the national laboratory network: Minimum requirements, role and operation in a low-income country. International Union Against Tuberculosis and Lung Disease, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

National Physical Laboratory (Great Britain). NPL points of contact: An outline of the role and organisational structure pf the National Physical Laboratory with a list of the current lines of work. NPL, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Meehan, Merrill L. Impact of Appalachia Educational Laboratory's products and services on its clients in three employer groups and five role groups. Appalachia Educational Laboratory, Planning, Research, and Evaluation Unit, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Laboratory role"

1

Sarin, Namrata, and Shakti Kumar Yadav. "Role of Information Technology." In Clinical Laboratory Management. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-46420-1_33.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Le Bras, Georges. "Laboratory Kinetics." In The Stratosphere and Its Role in the Climate System. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-662-03327-2_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sauder, Christian, Tetsuya Mizutani, and Kazunari Yamaguchi. "Laboratory Diagnosis." In Borna Disease Virus and its Role in Neurobehavioral Diseases. ASM Press, 2014. http://dx.doi.org/10.1128/9781555817909.ch3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bennett, Sterling T. "Role and Responsibilities of the Laboratory Director." In Laboratory Hemostasis. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08924-9_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Hall, Newman A. "Role of the Laboratory." In ASA Special Publications. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/asaspecpub12.c13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Verma, Alekh, and Shakti Kumar Yadav. "Role of Consent in Laboratory Practice." In Clinical Laboratory Management. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-46420-1_38.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Richkind, Kathleen. "The Role of Classical Cytogenetics in Hematologic Diagnosis." In Laboratory Hematology Practice. Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781444398595.ch21.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Verma, Alekh, and Ruchika Gupta. "Role of Medical Laboratory Technology in Health Care." In Clinical Laboratory Management. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-46420-1_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gibson, Maik. "The role of implicational universals in language change." In The Dialect Laboratory. John Benjamins Publishing Company, 2012. http://dx.doi.org/10.1075/slcs.128.05gib.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Escribano, Luis, Andrés Garcia-Montero, Laura Sanchez-Muñoz, et al. "Diagnosis of Adult Mastocytosis: Role for Bone Marrow Analysis." In Laboratory Hematology Practice. Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781444398595.ch29.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Laboratory role"

1

Fan, Deyuan, Lisa E. Kolp, Dennis S. Huett, and Margaret A. Sargent. "Role of Impurities and H2S in Refinery Lean DEA System Corrosion." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00495.

Full text
Abstract:
Abstract A large variety of impurities in refinery gas amine treating systems have been implicated as corrosion causing agents in these systems. Success and failure experience from several refinery amine treating units is presented to demonstrate the significance of these impurities as well as the role of lean amine H2S loading. Some limited laboratory testing data are presented. The need for additional data is highlighted.
APA, Harvard, Vancouver, ISO, and other styles
2

Farrell, Andrew R., Benjamin Martin, Dario M. Frigo, and Gordon M. Graham. "Designing Laboratory Test Protocols for Asphaltenes Deposition." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16697.

Full text
Abstract:
ABSTRACT Asphaltenes deposition is associated with several detrimental effects on oil production, paramount among these being production deferment and integrity issues. The current paper presents an investigation of asphaltenes risk assessment and mitigation strategies using a dynamic flow test method. It includes a study of the key parameters that influence observation of asphaltenes deposition in the laboratory and how laboratory testing methodologies can be designed to match more closely the processes occurring in the field. In these dynamic tests, dead crude oil is co-injected with n-heptane through a capillary and an inline filter, allowing assessment of both deposition and precipitation in a single test. The method is able to assess deposition tendency and rank asphaltenes inhibitor chemicals under flowing conditions and at more field-representative temperature and pressure, and with much lower volume fractions of n-heptane than required for conventional asphaltenes laboratory tests. Fluid dynamics is recognised to play a key role in the extent of asphaltenes deposition and is often most severe under low-shear conditions because erosive forces can reduce or eliminate deposition at higher shear. Using the dynamic flow test method with capillaries of differing internal diameter, we investigate the factors that either promote or suppress deposition, and determine certain boundary conditions where deposition is inhibited under the influence of increasing shear. The dynamic method is also used to evaluate the effectiveness of asphaltenes inhibitor chemicals against both precipitation and deposition, thus demonstrating that this approach provides much more relevant chemical-performance data than conventional test approaches, and may even elucidate why chemicals selected using non-dynamic methods often perform indifferently in the field or sometimes fail to perform completely.
APA, Harvard, Vancouver, ISO, and other styles
3

Ning, Jing, Yougui Zheng, Bruce Brown, David Young, and Srdjan Nesic. "The Role of Iron Sulfide Polymorphism in Localized H2S Corrosion of Mild Steel." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07502.

Full text
Abstract:
Abstract Localized corrosion in sour fields is a challenge persisting in the oil and gas industry since it has frequently been seen as a cause for catastrophic failures of upstream pipelines. Hence, prediction and mitigation of H2S localized corrosion of mild steel is of key importance for integrity management. However, our current understanding of H2S localized corrosion mechanism(s) from numerous studies in both in the laboratory and the field is far from being conclusive. Especially, the environmental conditions that may cause localized H2S corrosion are unclear. Therefore, defining an experimental condition in the laboratory that can replicate localized corrosion in a sour environment is critical to our understanding of mechanisms of localized corrosion. The focus of the present research was to explore environmental conditions leading to localized H2S corrosion. It was found that severe localized corrosion was repeatedly observed in experiments, when there was a simultaneous formation of greigite and/or pyrite. Based on those experimental results, a hypothesis for a mechanism of H2S localized corrosion was proposed.
APA, Harvard, Vancouver, ISO, and other styles
4

Meletis, E. I., and K. Lian. "Environment-Induced Deformation Localization and Its Role in Transgranular Stress Corrosion Cracking." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95180.

Full text
Abstract:
Abstract The long term objective of the present work is to provide an insight to the nucleation and evolution of deformation patterns occurring during transgranular (TG) stress corrosion cracking (SCC) and produce new alternatives for addressing the nature of the embrittlement process. Flat, tensile α- brass (72Cu-28Zn) specimens were tested in 5M NH4OH solution at a strain rate of 1x10−5s−1. Slip band spacing (SBS) and slip band heights (SBH) were measured as a function of strain by conducting interrupted experiments in the SCC environment and were compared with those developed in specimens tested in laboratory air. The results showed that the presence of the SCC environment during straining promotes localized plastic deformation at the near-surface region, but more importantly produces a completely different deformation pattern compared to that developed in laboratory air. The deformation evolved in the presence of the electrolyte was highly localized, exhibiting a fine SBS but coarse SBH and slip band length. In addition, a periodicity was observed in the spacing of the crack initiation sites. The amount of localized strain developed at the specimen near-surface region prior to nucleation of stress corrosion cracks was found to be equivalent to the strain required for ductile fracture of the material in air, suggesting the existence of a fundamental fracture criterion. The TGSCC process is considered in view of the presently observed deformation patterns.
APA, Harvard, Vancouver, ISO, and other styles
5

Garber, James D., Kathleen Knierim, Vinayak B. Patil, and Jared Hebert. "Role of Acetates on Pitting Corrosion in a CO2 System." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10185.

Full text
Abstract:
Abstract A pitting model has been developed which provides an explanation of why acetates affect CO2 pitting corrosion. The pitting diffusion model is based on the diffusion of iron ions from the bottom to the top of the pit. To maintain electro-neutrality, negatively charged ions must migrate into the pit. For the pit to continue propagating, it must be more acidic at its bottom than at the top. The model has shown how acetates allow this to happen. The new model can be used to predict if CO2 pitting corrosion will occur provided parameters such as temperature, salt concentration, in-situ pH and acetate concentration are known. A method is presented which allow for the calculation of in-situ pH from laboratory information.
APA, Harvard, Vancouver, ISO, and other styles
6

Ellis, D. M., J. Richardson, and J. C. Fan. "Passivation and Its Role in Controlling Condensate and Feedwater System Corrosion." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89308.

Full text
Abstract:
Abstract Diethylhydroxylamine (DEHA) has been shown to be an effective oxygen scavenger for both feedwater and condensate systems within the boiler cycle. It has also been shown to be a strong metal passivator in both laboratory and field tests. Measurements of the polarization characteristics of mild steel in the presence of these compounds reveal enhanced passive film formation. This is independent of the solution pH when evaluated between 8.0 and 9.0. Measurements over a range of concentrations of DEHA show that enhanced film formation is related to the adsorption of the inhibitor. Results are presented which demonstrate these effects and the iron passivation mechanism is discussed.
APA, Harvard, Vancouver, ISO, and other styles
7

Videla, H. A., C. L. Swords, M. Fernández Lorenzo de Mele, R. G. Edyvean, Peter Watkins, and I. B. Beech. "The Role of Iron in SRB Influenced Corrosion of Mild Steel." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98289.

Full text
Abstract:
Abstract The growth of anaerobic bacteria such as sulfate reducing bacteria (SRB) produces dramatic changes in the mild steel/solution interface which include variations of the redox potential and pH values, anions and cations concentrations and the composition and structure of inorganic layers, among others. Complex equilibria between different iron compounds are established. These equilibria are markedly altered during bacterial growth. As a first aproach to the understanding of the complex scenario at the biofilm/surface interface, electrochemical techniques including different perturbation programs complemented by microscopic observations and chemical analysis of the corrosion products were made in the laboratory. Thus, the aim of this work is to study the influence of pH. sulfide, sulfate, and iron ions concentrations on the electrochemical processes occurring at the interface to achieve a better understanding of the transformations produced during SRB growth.
APA, Harvard, Vancouver, ISO, and other styles
8

Demarteau, Marcel. "Detector R&amp;D Initiatives: The Laboratory Role." In Detector R&D Initiatives: The Laboratory Role. US DOE, 2008. http://dx.doi.org/10.2172/1969680.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Spentzouris, Panagiotis. "Computing R&amp;D Initiatives: The Laboratory Role." In Computing R&D Initiatives: The Laboratory Role. US DOE, 2008. http://dx.doi.org/10.2172/1969658.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Thornton, Ronald K., and David R. Sokoloff. "RealTime Physics: Active learning laboratory." In The changing role of physics departments in modern universities. AIP, 1997. http://dx.doi.org/10.1063/1.53111.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Laboratory role"

1

White, K., M. Morris, and M. Stegman. The Role of the National Laboratory in Improving Secondary Science Education. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/941014.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Al-Ayat, R. A., P. L. Chrzanowski, and R. W. Werne. National strategic challenges and the role of Lawrence Livermore National Laboratory. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/41411.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Finlayson-Pitts, Barbara J. Laboratory Studies of the Role of Amines in Particle Formation, Growth and Climate. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1169440.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gregory R. Carmichael and Vicki H. Grassian. The Role of Heterogeneous Chemistry of Volatile ORganic Compounds: A Modeling and Laboratory Study. Office of Scientific and Technical Information (OSTI), 2007. http://dx.doi.org/10.2172/900190.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

B. J. Finlayson-Pitts. Final Report, "Laboratory Studies of the Role of Sea Salt Bromine in Determining Tropospheric Ozone". Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/840929.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Gold, Chris, and David Sahar. Role of Endothelial Differentiated Adipose-derived Stem Cells in Repairing Calvarial Critical Size Defects in the Laboratory Rat (Rattus norvegicus). Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada608955.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Sanchez, Rudolph. The Role of Trust, Leader-Member Exchange, and Organizational Justice in Employee Attitudes and Behaviors: A Laboratory and Field Investigation. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.5612.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Chang, Ke-Vin. The Role of Suprascapular Nerve Release in Rotator Cuff Repair: a Protocol for Systematic Review and Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.3.0029.

Full text
Abstract:
Review question / Objective: To evaluate whether additional suprascapular nerve (SSN) release can improve functional outcomes and shoulder pain more than rotator cuff repair only. Condition being studied: To examine the usefulness of SSN release in patients undergoing rotator cuff tendon repair. Information sources: PubMed, Cochrane CENTRAL, EMBASE, Clincial.gov. and Web of Science databases will be searched for the relevant studies without language restriction. Case reports, case series, conference abstracts, animal studies or those performed in laboratory settings will be excluded from the present meta-analysis.
APA, Harvard, Vancouver, ISO, and other styles
9

Jones and Hagedorn. PR-266-13206-R01 Role of Fuel Borne Metallic Catalysts in the Inhibition of NOx Formation. Pipeline Research Council International, Inc. (PRCI), 2014. http://dx.doi.org/10.55274/r0010994.

Full text
Abstract:
Fuel borne catalysts (FBC) are additives that are mixed with the fuel prior to it passing into the combustion chamber. Metallic FBC are claimed to substantially reduce NOx in lean burn engines and otherwise improve performance characteristics. The purpose of this project is to research current literature on FBC and evaluate these catalyst materials and their economics to ultimately develop a plan that will lead to laboratory measurements on a full-scale, natural gas fired engine and, potentially, field tests. The first phase of the project, reported herein, consists of four parts: a review of current literature on FBC as a reduction agent of NOx, a survey of current FBC users, an economic analysis of FBC usage, and a summary and conclusion of the information obtained.
APA, Harvard, Vancouver, ISO, and other styles
10

Parkins. L51743 Stress Corrosion Cracking of Pipelines in Contact with Near-Neutral pH Solutions. Pipeline Research Council International, Inc. (PRCI), 1995. http://dx.doi.org/10.55274/r0010322.

Full text
Abstract:
While much has been learned about low pH stress corrosion cracking in the decade since it was recognized, a review of the published papers and reports since the last overview of the subject in 1992 indicates that there is still much to be understood about this matter. Most of the laboratory studies have involved dilute solutions based upon those found in the vicinity of cracks in operating lines, but the possible role of bacteria, for which there is supporting field evidence, has not received systematic study. The trans-granular service cracking has been reproduced in the laboratory, most readily when relatively high stresses and/or strains are applied to specimens, but there is still difficulty in reproducing cracking in the laboratory with stressing conditions similar to those on an operating pipeline. If meaningful modeling of low pH cracking is to be achieved, there is need for more data on crack initiation and the early stages of growth with stressing conditions no overly excessive by comparison with service conditions. There is also a need, related to modeling, of an understanding of the mechanistic aspects of cracking, since while it is known, not least from visible evidence of corrosion on the sides of cracks, that dissolution occurs within the crack enclave, there is indirect evidence that the ingress of hydrogen into the steel may be involved also in the overall crack growth process. If hydrogen is involved then existing models based upon high pH cracking, and involving a quantifiable dissolution mechanism, will not be directly applicable to the low pH problem.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Laboratory role' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography